From: Roland Vossen Date: Wed, 1 Jun 2011 11:45:07 +0000 (+0200) Subject: staging: brcm80211: removed 'hnd' from filenames X-Git-Tag: MMI-PSA29.97-13-9~18845^2~568^2~152 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=189aed097b1dc458d2290034fb3136147e64a1de;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git staging: brcm80211: removed 'hnd' from filenames Cleanup. 'hnd' is a company specific acronym. Signed-off-by: Roland Vossen Reviewed-by: Arend van Spriel Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c index 3750fcf5a871..e11c615d7494 100644 --- a/drivers/staging/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include /* BRCM API for SDIO clients (such as wl, dhd) */ diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c index 5d747b851ed7..fd4f34189e39 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c @@ -30,13 +30,13 @@ #include #include -#include +#include #ifdef DHD_DEBUG -#include -#include +#include +#include #endif /* DHD_DEBUG */ #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmfmac/hndrte_armtrap.h b/drivers/staging/brcm80211/brcmfmac/hndrte_armtrap.h deleted file mode 100644 index 28f092c9e027..000000000000 --- a/drivers/staging/brcm80211/brcmfmac/hndrte_armtrap.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _hndrte_armtrap_h -#define _hndrte_armtrap_h - -/* ARM trap handling */ - -/* Trap types defined by ARM (see arminc.h) */ - -/* Trap locations in lo memory */ -#define TRAP_STRIDE 4 -#define FIRST_TRAP TR_RST -#define LAST_TRAP (TR_FIQ * TRAP_STRIDE) - -#if defined(__ARM_ARCH_4T__) -#define MAX_TRAP_TYPE (TR_FIQ + 1) -#elif defined(__ARM_ARCH_7M__) -#define MAX_TRAP_TYPE (TR_ISR + ARMCM3_NUMINTS) -#endif /* __ARM_ARCH_7M__ */ - -/* The trap structure is defined here as offsets for assembly */ -#define TR_TYPE 0x00 -#define TR_EPC 0x04 -#define TR_CPSR 0x08 -#define TR_SPSR 0x0c -#define TR_REGS 0x10 -#define TR_REG(n) (TR_REGS + (n) * 4) -#define TR_SP TR_REG(13) -#define TR_LR TR_REG(14) -#define TR_PC TR_REG(15) - -#define TRAP_T_SIZE 80 - -#ifndef _LANGUAGE_ASSEMBLY - -typedef struct _trap_struct { - u32 type; - u32 epc; - u32 cpsr; - u32 spsr; - u32 r0; - u32 r1; - u32 r2; - u32 r3; - u32 r4; - u32 r5; - u32 r6; - u32 r7; - u32 r8; - u32 r9; - u32 r10; - u32 r11; - u32 r12; - u32 r13; - u32 r14; - u32 pc; -} trap_t; - -#endif /* !_LANGUAGE_ASSEMBLY */ - -#endif /* _hndrte_armtrap_h */ diff --git a/drivers/staging/brcm80211/brcmfmac/hndrte_cons.h b/drivers/staging/brcm80211/brcmfmac/hndrte_cons.h deleted file mode 100644 index 4df3eecaa83b..000000000000 --- a/drivers/staging/brcm80211/brcmfmac/hndrte_cons.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ -#ifndef _hndrte_cons_h -#define _hndrte_cons_h - -#define CBUF_LEN (128) - -#define LOG_BUF_LEN 1024 - -typedef struct { - u32 buf; /* Can't be pointer on (64-bit) hosts */ - uint buf_size; - uint idx; - char *_buf_compat; /* Redundant pointer for backward compat. */ -} hndrte_log_t; - -typedef struct { - /* Virtual UART - * When there is no UART (e.g. Quickturn), - * the host should write a complete - * input line directly into cbuf and then write - * the length into vcons_in. - * This may also be used when there is a real UART - * (at risk of conflicting with - * the real UART). vcons_out is currently unused. - */ - volatile uint vcons_in; - volatile uint vcons_out; - - /* Output (logging) buffer - * Console output is written to a ring buffer log_buf at index log_idx. - * The host may read the output when it sees log_idx advance. - * Output will be lost if the output wraps around faster than the host - * polls. - */ - hndrte_log_t log; - - /* Console input line buffer - * Characters are read one at a time into cbuf - * until is received, then - * the buffer is processed as a command line. - * Also used for virtual UART. - */ - uint cbuf_idx; - char cbuf[CBUF_LEN]; -} hndrte_cons_t; - -#endif /* _hndrte_cons_h */ - diff --git a/drivers/staging/brcm80211/brcmfmac/rte_armtrap.h b/drivers/staging/brcm80211/brcmfmac/rte_armtrap.h new file mode 100644 index 000000000000..28f092c9e027 --- /dev/null +++ b/drivers/staging/brcm80211/brcmfmac/rte_armtrap.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _hndrte_armtrap_h +#define _hndrte_armtrap_h + +/* ARM trap handling */ + +/* Trap types defined by ARM (see arminc.h) */ + +/* Trap locations in lo memory */ +#define TRAP_STRIDE 4 +#define FIRST_TRAP TR_RST +#define LAST_TRAP (TR_FIQ * TRAP_STRIDE) + +#if defined(__ARM_ARCH_4T__) +#define MAX_TRAP_TYPE (TR_FIQ + 1) +#elif defined(__ARM_ARCH_7M__) +#define MAX_TRAP_TYPE (TR_ISR + ARMCM3_NUMINTS) +#endif /* __ARM_ARCH_7M__ */ + +/* The trap structure is defined here as offsets for assembly */ +#define TR_TYPE 0x00 +#define TR_EPC 0x04 +#define TR_CPSR 0x08 +#define TR_SPSR 0x0c +#define TR_REGS 0x10 +#define TR_REG(n) (TR_REGS + (n) * 4) +#define TR_SP TR_REG(13) +#define TR_LR TR_REG(14) +#define TR_PC TR_REG(15) + +#define TRAP_T_SIZE 80 + +#ifndef _LANGUAGE_ASSEMBLY + +typedef struct _trap_struct { + u32 type; + u32 epc; + u32 cpsr; + u32 spsr; + u32 r0; + u32 r1; + u32 r2; + u32 r3; + u32 r4; + u32 r5; + u32 r6; + u32 r7; + u32 r8; + u32 r9; + u32 r10; + u32 r11; + u32 r12; + u32 r13; + u32 r14; + u32 pc; +} trap_t; + +#endif /* !_LANGUAGE_ASSEMBLY */ + +#endif /* _hndrte_armtrap_h */ diff --git a/drivers/staging/brcm80211/brcmfmac/rte_cons.h b/drivers/staging/brcm80211/brcmfmac/rte_cons.h new file mode 100644 index 000000000000..4df3eecaa83b --- /dev/null +++ b/drivers/staging/brcm80211/brcmfmac/rte_cons.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#ifndef _hndrte_cons_h +#define _hndrte_cons_h + +#define CBUF_LEN (128) + +#define LOG_BUF_LEN 1024 + +typedef struct { + u32 buf; /* Can't be pointer on (64-bit) hosts */ + uint buf_size; + uint idx; + char *_buf_compat; /* Redundant pointer for backward compat. */ +} hndrte_log_t; + +typedef struct { + /* Virtual UART + * When there is no UART (e.g. Quickturn), + * the host should write a complete + * input line directly into cbuf and then write + * the length into vcons_in. + * This may also be used when there is a real UART + * (at risk of conflicting with + * the real UART). vcons_out is currently unused. + */ + volatile uint vcons_in; + volatile uint vcons_out; + + /* Output (logging) buffer + * Console output is written to a ring buffer log_buf at index log_idx. + * The host may read the output when it sees log_idx advance. + * Output will be lost if the output wraps around faster than the host + * polls. + */ + hndrte_log_t log; + + /* Console input line buffer + * Characters are read one at a time into cbuf + * until is received, then + * the buffer is processed as a command line. + * Also used for virtual UART. + */ + uint cbuf_idx; + char cbuf[CBUF_LEN]; +} hndrte_cons_t; + +#endif /* _hndrte_cons_h */ + diff --git a/drivers/staging/brcm80211/brcmsmac/Makefile b/drivers/staging/brcm80211/brcmsmac/Makefile index 8d75fe19ca9a..4356a29a3f1c 100644 --- a/drivers/staging/brcm80211/brcmsmac/Makefile +++ b/drivers/staging/brcm80211/brcmsmac/Makefile @@ -49,7 +49,7 @@ BRCMSMAC_OFILES := \ phy/wlc_phy_qmath.o \ bcmotp.o \ bcmsrom.o \ - hnddma.o \ + dma.o \ nicpci.o \ nvram.o diff --git a/drivers/staging/brcm80211/brcmsmac/aiutils.c b/drivers/staging/brcm80211/brcmsmac/aiutils.c index a61185f70a7c..73587b34e25a 100644 --- a/drivers/staging/brcm80211/brcmsmac/aiutils.c +++ b/drivers/staging/brcm80211/brcmsmac/aiutils.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/bcmdma.h b/drivers/staging/brcm80211/brcmsmac/bcmdma.h new file mode 100644 index 000000000000..fbbcb9b5ae62 --- /dev/null +++ b/drivers/staging/brcm80211/brcmsmac/bcmdma.h @@ -0,0 +1,226 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _hnddma_h_ +#define _hnddma_h_ + +#ifndef _hnddma_pub_ +#define _hnddma_pub_ +struct hnddma_pub; +#endif /* _hnddma_pub_ */ + +/* map/unmap direction */ +#define DMA_TX 1 /* TX direction for DMA */ +#define DMA_RX 2 /* RX direction for DMA */ +#define BUS_SWAP32(v) (v) + +/* range param for dma_getnexttxp() and dma_txreclaim */ +typedef enum txd_range { + HNDDMA_RANGE_ALL = 1, + HNDDMA_RANGE_TRANSMITTED, + HNDDMA_RANGE_TRANSFERED +} txd_range_t; + +/* dma function type */ +typedef void (*di_detach_t) (struct hnddma_pub *dmah); +typedef bool(*di_txreset_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxreset_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxidle_t) (struct hnddma_pub *dmah); +typedef void (*di_txinit_t) (struct hnddma_pub *dmah); +typedef bool(*di_txenabled_t) (struct hnddma_pub *dmah); +typedef void (*di_rxinit_t) (struct hnddma_pub *dmah); +typedef void (*di_txsuspend_t) (struct hnddma_pub *dmah); +typedef void (*di_txresume_t) (struct hnddma_pub *dmah); +typedef bool(*di_txsuspended_t) (struct hnddma_pub *dmah); +typedef bool(*di_txsuspendedidle_t) (struct hnddma_pub *dmah); +typedef int (*di_txfast_t) (struct hnddma_pub *dmah, struct sk_buff *p, + bool commit); +typedef int (*di_txunframed_t) (struct hnddma_pub *dmah, void *p, uint len, + bool commit); +typedef void *(*di_getpos_t) (struct hnddma_pub *di, bool direction); +typedef void (*di_fifoloopbackenable_t) (struct hnddma_pub *dmah); +typedef bool(*di_txstopped_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxstopped_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxenable_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxenabled_t) (struct hnddma_pub *dmah); +typedef void *(*di_rx_t) (struct hnddma_pub *dmah); +typedef bool(*di_rxfill_t) (struct hnddma_pub *dmah); +typedef void (*di_txreclaim_t) (struct hnddma_pub *dmah, txd_range_t range); +typedef void (*di_rxreclaim_t) (struct hnddma_pub *dmah); +typedef unsigned long (*di_getvar_t) (struct hnddma_pub *dmah, + const char *name); +typedef void *(*di_getnexttxp_t) (struct hnddma_pub *dmah, txd_range_t range); +typedef void *(*di_getnextrxp_t) (struct hnddma_pub *dmah, bool forceall); +typedef void *(*di_peeknexttxp_t) (struct hnddma_pub *dmah); +typedef void *(*di_peeknextrxp_t) (struct hnddma_pub *dmah); +typedef void (*di_rxparam_get_t) (struct hnddma_pub *dmah, u16 *rxoffset, + u16 *rxbufsize); +typedef void (*di_txblock_t) (struct hnddma_pub *dmah); +typedef void (*di_txunblock_t) (struct hnddma_pub *dmah); +typedef uint(*di_txactive_t) (struct hnddma_pub *dmah); +typedef void (*di_txrotate_t) (struct hnddma_pub *dmah); +typedef void (*di_counterreset_t) (struct hnddma_pub *dmah); +typedef uint(*di_ctrlflags_t) (struct hnddma_pub *dmah, uint mask, uint flags); +typedef char *(*di_dump_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, + bool dumpring); +typedef char *(*di_dumptx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, + bool dumpring); +typedef char *(*di_dumprx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, + bool dumpring); +typedef uint(*di_rxactive_t) (struct hnddma_pub *dmah); +typedef uint(*di_txpending_t) (struct hnddma_pub *dmah); +typedef uint(*di_txcommitted_t) (struct hnddma_pub *dmah); + +/* dma opsvec */ +typedef struct di_fcn_s { + di_detach_t detach; + di_txinit_t txinit; + di_txreset_t txreset; + di_txenabled_t txenabled; + di_txsuspend_t txsuspend; + di_txresume_t txresume; + di_txsuspended_t txsuspended; + di_txsuspendedidle_t txsuspendedidle; + di_txfast_t txfast; + di_txunframed_t txunframed; + di_getpos_t getpos; + di_txstopped_t txstopped; + di_txreclaim_t txreclaim; + di_getnexttxp_t getnexttxp; + di_peeknexttxp_t peeknexttxp; + di_txblock_t txblock; + di_txunblock_t txunblock; + di_txactive_t txactive; + di_txrotate_t txrotate; + + di_rxinit_t rxinit; + di_rxreset_t rxreset; + di_rxidle_t rxidle; + di_rxstopped_t rxstopped; + di_rxenable_t rxenable; + di_rxenabled_t rxenabled; + di_rx_t rx; + di_rxfill_t rxfill; + di_rxreclaim_t rxreclaim; + di_getnextrxp_t getnextrxp; + di_peeknextrxp_t peeknextrxp; + di_rxparam_get_t rxparam_get; + + di_fifoloopbackenable_t fifoloopbackenable; + di_getvar_t d_getvar; + di_counterreset_t counterreset; + di_ctrlflags_t ctrlflags; + di_dump_t dump; + di_dumptx_t dumptx; + di_dumprx_t dumprx; + di_rxactive_t rxactive; + di_txpending_t txpending; + di_txcommitted_t txcommitted; + uint endnum; +} di_fcn_t; + +/* + * Exported data structure (read-only) + */ +/* export structure */ +struct hnddma_pub { + const di_fcn_t *di_fn; /* DMA function pointers */ + uint txavail; /* # free tx descriptors */ + uint dmactrlflags; /* dma control flags */ + + /* rx error counters */ + uint rxgiants; /* rx giant frames */ + uint rxnobuf; /* rx out of dma descriptors */ + /* tx error counters */ + uint txnobuf; /* tx out of dma descriptors */ +}; + +extern struct hnddma_pub *dma_attach(char *name, si_t *sih, + void *dmaregstx, void *dmaregsrx, uint ntxd, + uint nrxd, uint rxbufsize, int rxextheadroom, + uint nrxpost, uint rxoffset, uint *msg_level); + +extern const di_fcn_t dma64proc; + +#define dma_detach(di) (dma64proc.detach(di)) +#define dma_txreset(di) (dma64proc.txreset(di)) +#define dma_rxreset(di) (dma64proc.rxreset(di)) +#define dma_rxidle(di) (dma64proc.rxidle(di)) +#define dma_txinit(di) (dma64proc.txinit(di)) +#define dma_txenabled(di) (dma64proc.txenabled(di)) +#define dma_rxinit(di) (dma64proc.rxinit(di)) +#define dma_txsuspend(di) (dma64proc.txsuspend(di)) +#define dma_txresume(di) (dma64proc.txresume(di)) +#define dma_txsuspended(di) (dma64proc.txsuspended(di)) +#define dma_txsuspendedidle(di) (dma64proc.txsuspendedidle(di)) +#define dma_txfast(di, p, commit) (dma64proc.txfast(di, p, commit)) +#define dma_txunframed(di, p, l, commit)(dma64proc.txunframed(di, p, l, commit)) +#define dma_getpos(di, dir) (dma64proc.getpos(di, dir)) +#define dma_fifoloopbackenable(di) (dma64proc.fifoloopbackenable(di)) +#define dma_txstopped(di) (dma64proc.txstopped(di)) +#define dma_rxstopped(di) (dma64proc.rxstopped(di)) +#define dma_rxenable(di) (dma64proc.rxenable(di)) +#define dma_rxenabled(di) (dma64proc.rxenabled(di)) +#define dma_rx(di) (dma64proc.rx(di)) +#define dma_rxfill(di) (dma64proc.rxfill(di)) +#define dma_txreclaim(di, range) (dma64proc.txreclaim(di, range)) +#define dma_rxreclaim(di) (dma64proc.rxreclaim(di)) +#define dma_getvar(di, name) (dma64proc.d_getvar(di, name)) +#define dma_getnexttxp(di, range) (dma64proc.getnexttxp(di, range)) +#define dma_getnextrxp(di, forceall) (dma64proc.getnextrxp(di, forceall)) +#define dma_peeknexttxp(di) (dma64proc.peeknexttxp(di)) +#define dma_peeknextrxp(di) (dma64proc.peeknextrxp(di)) +#define dma_rxparam_get(di, off, bufs) (dma64proc.rxparam_get(di, off, bufs)) + +#define dma_txblock(di) (dma64proc.txblock(di)) +#define dma_txunblock(di) (dma64proc.txunblock(di)) +#define dma_txactive(di) (dma64proc.txactive(di)) +#define dma_rxactive(di) (dma64proc.rxactive(di)) +#define dma_txrotate(di) (dma64proc.txrotate(di)) +#define dma_counterreset(di) (dma64proc.counterreset(di)) +#define dma_ctrlflags(di, mask, flags) (dma64proc.ctrlflags((di), (mask), (flags))) +#define dma_txpending(di) (dma64proc.txpending(di)) +#define dma_txcommitted(di) (dma64proc.txcommitted(di)) + + +/* return addresswidth allowed + * This needs to be done after SB attach but before dma attach. + * SB attach provides ability to probe backplane and dma core capabilities + * This info is needed by DMA_ALLOC_CONSISTENT in dma attach + */ +extern uint dma_addrwidth(si_t *sih, void *dmaregs); +void dma_walk_packets(struct hnddma_pub *dmah, void (*callback_fnc) + (void *pkt, void *arg_a), void *arg_a); + +/* + * DMA(Bug) on some chips seems to declare that the packet is ready, but the + * packet length is not updated yet (by DMA) on the expected time. + * Workaround is to hold processor till DMA updates the length, and stay off + * the bus to allow DMA update the length in buffer + */ +static inline void dma_spin_for_len(uint len, struct sk_buff *head) +{ +#if defined(__mips__) + if (!len) { + while (!(len = *(u16 *) KSEG1ADDR(head->data))) + udelay(1); + + *(u16 *) (head->data) = cpu_to_le16((u16) len); + } +#endif /* defined(__mips__) */ +} + +#endif /* _hnddma_h_ */ diff --git a/drivers/staging/brcm80211/brcmsmac/bcmotp.c b/drivers/staging/brcm80211/brcmsmac/bcmotp.c index d09628b5a88e..f0256417d248 100644 --- a/drivers/staging/brcm80211/brcmsmac/bcmotp.c +++ b/drivers/staging/brcm80211/brcmsmac/bcmotp.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/bcmsrom.c b/drivers/staging/brcm80211/brcmsmac/bcmsrom.c index bbfc64204363..9de10fe961be 100644 --- a/drivers/staging/brcm80211/brcmsmac/bcmsrom.c +++ b/drivers/staging/brcm80211/brcmsmac/bcmsrom.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/dma.c b/drivers/staging/brcm80211/brcmsmac/dma.c new file mode 100644 index 000000000000..6fde51fabf78 --- /dev/null +++ b/drivers/staging/brcm80211/brcmsmac/dma.c @@ -0,0 +1,1756 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#if defined(__mips__) +#include +#endif + +#ifdef BRCM_FULLMAC +#error "hnddma.c shouldn't be needed for FULLMAC" +#endif + +/* debug/trace */ +#ifdef BCMDBG +#define DMA_ERROR(args) \ + do { \ + if (!(*di->msg_level & 1)) \ + ; \ + else \ + printk args; \ + } while (0) +#define DMA_TRACE(args) \ + do { \ + if (!(*di->msg_level & 2)) \ + ; \ + else \ + printk args; \ + } while (0) +#else +#define DMA_ERROR(args) +#define DMA_TRACE(args) +#endif /* BCMDBG */ + +#define DMA_NONE(args) + +#define d64txregs dregs.d64_u.txregs_64 +#define d64rxregs dregs.d64_u.rxregs_64 +#define txd64 dregs.d64_u.txd_64 +#define rxd64 dregs.d64_u.rxd_64 + +/* default dma message level (if input msg_level pointer is null in dma_attach()) */ +static uint dma_msg_level; + +#define MAXNAMEL 8 /* 8 char names */ + +#define DI_INFO(dmah) ((dma_info_t *)dmah) + +#define R_SM(r) (*(r)) +#define W_SM(r, v) (*(r) = (v)) + +/* dma engine software state */ +typedef struct dma_info { + struct hnddma_pub hnddma; /* exported structure */ + uint *msg_level; /* message level pointer */ + char name[MAXNAMEL]; /* callers name for diag msgs */ + + void *pbus; /* bus handle */ + + bool dma64; /* this dma engine is operating in 64-bit mode */ + bool addrext; /* this dma engine supports DmaExtendedAddrChanges */ + + union { + struct { + dma64regs_t *txregs_64; /* 64-bit dma tx engine registers */ + dma64regs_t *rxregs_64; /* 64-bit dma rx engine registers */ + dma64dd_t *txd_64; /* pointer to dma64 tx descriptor ring */ + dma64dd_t *rxd_64; /* pointer to dma64 rx descriptor ring */ + } d64_u; + } dregs; + + u16 dmadesc_align; /* alignment requirement for dma descriptors */ + + u16 ntxd; /* # tx descriptors tunable */ + u16 txin; /* index of next descriptor to reclaim */ + u16 txout; /* index of next descriptor to post */ + void **txp; /* pointer to parallel array of pointers to packets */ + hnddma_seg_map_t *txp_dmah; /* DMA MAP meta-data handle */ + dmaaddr_t txdpa; /* Aligned physical address of descriptor ring */ + dmaaddr_t txdpaorig; /* Original physical address of descriptor ring */ + u16 txdalign; /* #bytes added to alloc'd mem to align txd */ + u32 txdalloc; /* #bytes allocated for the ring */ + u32 xmtptrbase; /* When using unaligned descriptors, the ptr register + * is not just an index, it needs all 13 bits to be + * an offset from the addr register. + */ + + u16 nrxd; /* # rx descriptors tunable */ + u16 rxin; /* index of next descriptor to reclaim */ + u16 rxout; /* index of next descriptor to post */ + void **rxp; /* pointer to parallel array of pointers to packets */ + hnddma_seg_map_t *rxp_dmah; /* DMA MAP meta-data handle */ + dmaaddr_t rxdpa; /* Aligned physical address of descriptor ring */ + dmaaddr_t rxdpaorig; /* Original physical address of descriptor ring */ + u16 rxdalign; /* #bytes added to alloc'd mem to align rxd */ + u32 rxdalloc; /* #bytes allocated for the ring */ + u32 rcvptrbase; /* Base for ptr reg when using unaligned descriptors */ + + /* tunables */ + unsigned int rxbufsize; /* rx buffer size in bytes, + * not including the extra headroom + */ + uint rxextrahdrroom; /* extra rx headroom, reverseved to assist upper stack + * e.g. some rx pkt buffers will be bridged to tx side + * without byte copying. The extra headroom needs to be + * large enough to fit txheader needs. + * Some dongle driver may not need it. + */ + uint nrxpost; /* # rx buffers to keep posted */ + unsigned int rxoffset; /* rxcontrol offset */ + uint ddoffsetlow; /* add to get dma address of descriptor ring, low 32 bits */ + uint ddoffsethigh; /* high 32 bits */ + uint dataoffsetlow; /* add to get dma address of data buffer, low 32 bits */ + uint dataoffsethigh; /* high 32 bits */ + bool aligndesc_4k; /* descriptor base need to be aligned or not */ +} dma_info_t; + +/* DMA Scatter-gather list is supported. Note this is limited to TX direction only */ +#ifdef BCMDMASGLISTOSL +#define DMASGLIST_ENAB true +#else +#define DMASGLIST_ENAB false +#endif /* BCMDMASGLISTOSL */ + +/* descriptor bumping macros */ +#define XXD(x, n) ((x) & ((n) - 1)) /* faster than %, but n must be power of 2 */ +#define TXD(x) XXD((x), di->ntxd) +#define RXD(x) XXD((x), di->nrxd) +#define NEXTTXD(i) TXD((i) + 1) +#define PREVTXD(i) TXD((i) - 1) +#define NEXTRXD(i) RXD((i) + 1) +#define PREVRXD(i) RXD((i) - 1) + +#define NTXDACTIVE(h, t) TXD((t) - (h)) +#define NRXDACTIVE(h, t) RXD((t) - (h)) + +/* macros to convert between byte offsets and indexes */ +#define B2I(bytes, type) ((bytes) / sizeof(type)) +#define I2B(index, type) ((index) * sizeof(type)) + +#define PCI32ADDR_HIGH 0xc0000000 /* address[31:30] */ +#define PCI32ADDR_HIGH_SHIFT 30 /* address[31:30] */ + +#define PCI64ADDR_HIGH 0x80000000 /* address[63] */ +#define PCI64ADDR_HIGH_SHIFT 31 /* address[63] */ + +/* Common prototypes */ +static bool _dma_isaddrext(dma_info_t *di); +static bool _dma_descriptor_align(dma_info_t *di); +static bool _dma_alloc(dma_info_t *di, uint direction); +static void _dma_detach(dma_info_t *di); +static void _dma_ddtable_init(dma_info_t *di, uint direction, dmaaddr_t pa); +static void _dma_rxinit(dma_info_t *di); +static void *_dma_rx(dma_info_t *di); +static bool _dma_rxfill(dma_info_t *di); +static void _dma_rxreclaim(dma_info_t *di); +static void _dma_rxenable(dma_info_t *di); +static void *_dma_getnextrxp(dma_info_t *di, bool forceall); +static void _dma_rx_param_get(dma_info_t *di, u16 *rxoffset, + u16 *rxbufsize); + +static void _dma_txblock(dma_info_t *di); +static void _dma_txunblock(dma_info_t *di); +static uint _dma_txactive(dma_info_t *di); +static uint _dma_rxactive(dma_info_t *di); +static uint _dma_txpending(dma_info_t *di); +static uint _dma_txcommitted(dma_info_t *di); + +static void *_dma_peeknexttxp(dma_info_t *di); +static void *_dma_peeknextrxp(dma_info_t *di); +static unsigned long _dma_getvar(dma_info_t *di, const char *name); +static void _dma_counterreset(dma_info_t *di); +static void _dma_fifoloopbackenable(dma_info_t *di); +static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags); +static u8 dma_align_sizetobits(uint size); +static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size, + u16 *alignbits, uint *alloced, + dmaaddr_t *descpa); + +/* Prototypes for 64-bit routines */ +static bool dma64_alloc(dma_info_t *di, uint direction); +static bool dma64_txreset(dma_info_t *di); +static bool dma64_rxreset(dma_info_t *di); +static bool dma64_txsuspendedidle(dma_info_t *di); +static int dma64_txfast(dma_info_t *di, struct sk_buff *p0, bool commit); +static int dma64_txunframed(dma_info_t *di, void *p0, uint len, bool commit); +static void *dma64_getpos(dma_info_t *di, bool direction); +static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range); +static void *dma64_getnextrxp(dma_info_t *di, bool forceall); +static void dma64_txrotate(dma_info_t *di); + +static bool dma64_rxidle(dma_info_t *di); +static void dma64_txinit(dma_info_t *di); +static bool dma64_txenabled(dma_info_t *di); +static void dma64_txsuspend(dma_info_t *di); +static void dma64_txresume(dma_info_t *di); +static bool dma64_txsuspended(dma_info_t *di); +static void dma64_txreclaim(dma_info_t *di, txd_range_t range); +static bool dma64_txstopped(dma_info_t *di); +static bool dma64_rxstopped(dma_info_t *di); +static bool dma64_rxenabled(dma_info_t *di); +static bool _dma64_addrext(dma64regs_t *dma64regs); + +static inline u32 parity32(u32 data); + +const di_fcn_t dma64proc = { + (di_detach_t) _dma_detach, + (di_txinit_t) dma64_txinit, + (di_txreset_t) dma64_txreset, + (di_txenabled_t) dma64_txenabled, + (di_txsuspend_t) dma64_txsuspend, + (di_txresume_t) dma64_txresume, + (di_txsuspended_t) dma64_txsuspended, + (di_txsuspendedidle_t) dma64_txsuspendedidle, + (di_txfast_t) dma64_txfast, + (di_txunframed_t) dma64_txunframed, + (di_getpos_t) dma64_getpos, + (di_txstopped_t) dma64_txstopped, + (di_txreclaim_t) dma64_txreclaim, + (di_getnexttxp_t) dma64_getnexttxp, + (di_peeknexttxp_t) _dma_peeknexttxp, + (di_txblock_t) _dma_txblock, + (di_txunblock_t) _dma_txunblock, + (di_txactive_t) _dma_txactive, + (di_txrotate_t) dma64_txrotate, + + (di_rxinit_t) _dma_rxinit, + (di_rxreset_t) dma64_rxreset, + (di_rxidle_t) dma64_rxidle, + (di_rxstopped_t) dma64_rxstopped, + (di_rxenable_t) _dma_rxenable, + (di_rxenabled_t) dma64_rxenabled, + (di_rx_t) _dma_rx, + (di_rxfill_t) _dma_rxfill, + (di_rxreclaim_t) _dma_rxreclaim, + (di_getnextrxp_t) _dma_getnextrxp, + (di_peeknextrxp_t) _dma_peeknextrxp, + (di_rxparam_get_t) _dma_rx_param_get, + + (di_fifoloopbackenable_t) _dma_fifoloopbackenable, + (di_getvar_t) _dma_getvar, + (di_counterreset_t) _dma_counterreset, + (di_ctrlflags_t) _dma_ctrlflags, + NULL, + NULL, + NULL, + (di_rxactive_t) _dma_rxactive, + (di_txpending_t) _dma_txpending, + (di_txcommitted_t) _dma_txcommitted, + 39 +}; + +struct hnddma_pub *dma_attach(char *name, si_t *sih, + void *dmaregstx, void *dmaregsrx, uint ntxd, + uint nrxd, uint rxbufsize, int rxextheadroom, + uint nrxpost, uint rxoffset, uint *msg_level) +{ + dma_info_t *di; + uint size; + + /* allocate private info structure */ + di = kzalloc(sizeof(dma_info_t), GFP_ATOMIC); + if (di == NULL) { +#ifdef BCMDBG + printk(KERN_ERR "dma_attach: out of memory\n"); +#endif + return NULL; + } + + di->msg_level = msg_level ? msg_level : &dma_msg_level; + + + di->dma64 = ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64); + + /* init dma reg pointer */ + di->d64txregs = (dma64regs_t *) dmaregstx; + di->d64rxregs = (dma64regs_t *) dmaregsrx; + di->hnddma.di_fn = (const di_fcn_t *)&dma64proc; + + /* Default flags (which can be changed by the driver calling dma_ctrlflags + * before enable): For backwards compatibility both Rx Overflow Continue + * and Parity are DISABLED. + * supports it. + */ + di->hnddma.di_fn->ctrlflags(&di->hnddma, DMA_CTRL_ROC | DMA_CTRL_PEN, + 0); + + DMA_TRACE(("%s: dma_attach: %s flags 0x%x ntxd %d nrxd %d " + "rxbufsize %d rxextheadroom %d nrxpost %d rxoffset %d " + "dmaregstx %p dmaregsrx %p\n", name, "DMA64", + di->hnddma.dmactrlflags, ntxd, nrxd, rxbufsize, + rxextheadroom, nrxpost, rxoffset, dmaregstx, dmaregsrx)); + + /* make a private copy of our callers name */ + strncpy(di->name, name, MAXNAMEL); + di->name[MAXNAMEL - 1] = '\0'; + + di->pbus = ((struct si_info *)sih)->pbus; + + /* save tunables */ + di->ntxd = (u16) ntxd; + di->nrxd = (u16) nrxd; + + /* the actual dma size doesn't include the extra headroom */ + di->rxextrahdrroom = + (rxextheadroom == -1) ? BCMEXTRAHDROOM : rxextheadroom; + if (rxbufsize > BCMEXTRAHDROOM) + di->rxbufsize = (u16) (rxbufsize - di->rxextrahdrroom); + else + di->rxbufsize = (u16) rxbufsize; + + di->nrxpost = (u16) nrxpost; + di->rxoffset = (u8) rxoffset; + + /* + * figure out the DMA physical address offset for dd and data + * PCI/PCIE: they map silicon backplace address to zero based memory, need offset + * Other bus: use zero + * SI_BUS BIGENDIAN kludge: use sdram swapped region for data buffer, not descriptor + */ + di->ddoffsetlow = 0; + di->dataoffsetlow = 0; + /* for pci bus, add offset */ + if (sih->bustype == PCI_BUS) { + /* pcie with DMA64 */ + di->ddoffsetlow = 0; + di->ddoffsethigh = SI_PCIE_DMA_H32; + di->dataoffsetlow = di->ddoffsetlow; + di->dataoffsethigh = di->ddoffsethigh; + } +#if defined(__mips__) && defined(IL_BIGENDIAN) + di->dataoffsetlow = di->dataoffsetlow + SI_SDRAM_SWAPPED; +#endif /* defined(__mips__) && defined(IL_BIGENDIAN) */ + /* WAR64450 : DMACtl.Addr ext fields are not supported in SDIOD core. */ + if ((ai_coreid(sih) == SDIOD_CORE_ID) + && ((ai_corerev(sih) > 0) && (ai_corerev(sih) <= 2))) + di->addrext = 0; + else if ((ai_coreid(sih) == I2S_CORE_ID) && + ((ai_corerev(sih) == 0) || (ai_corerev(sih) == 1))) + di->addrext = 0; + else + di->addrext = _dma_isaddrext(di); + + /* does the descriptors need to be aligned and if yes, on 4K/8K or not */ + di->aligndesc_4k = _dma_descriptor_align(di); + if (di->aligndesc_4k) { + di->dmadesc_align = D64RINGALIGN_BITS; + if ((ntxd < D64MAXDD / 2) && (nrxd < D64MAXDD / 2)) { + /* for smaller dd table, HW relax alignment reqmnt */ + di->dmadesc_align = D64RINGALIGN_BITS - 1; + } + } else + di->dmadesc_align = 4; /* 16 byte alignment */ + + DMA_NONE(("DMA descriptor align_needed %d, align %d\n", + di->aligndesc_4k, di->dmadesc_align)); + + /* allocate tx packet pointer vector */ + if (ntxd) { + size = ntxd * sizeof(void *); + di->txp = kzalloc(size, GFP_ATOMIC); + if (di->txp == NULL) { + DMA_ERROR(("%s: dma_attach: out of tx memory\n", di->name)); + goto fail; + } + } + + /* allocate rx packet pointer vector */ + if (nrxd) { + size = nrxd * sizeof(void *); + di->rxp = kzalloc(size, GFP_ATOMIC); + if (di->rxp == NULL) { + DMA_ERROR(("%s: dma_attach: out of rx memory\n", di->name)); + goto fail; + } + } + + /* allocate transmit descriptor ring, only need ntxd descriptors but it must be aligned */ + if (ntxd) { + if (!_dma_alloc(di, DMA_TX)) + goto fail; + } + + /* allocate receive descriptor ring, only need nrxd descriptors but it must be aligned */ + if (nrxd) { + if (!_dma_alloc(di, DMA_RX)) + goto fail; + } + + if ((di->ddoffsetlow != 0) && !di->addrext) { + if (PHYSADDRLO(di->txdpa) > SI_PCI_DMA_SZ) { + DMA_ERROR(("%s: dma_attach: txdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(di->txdpa))); + goto fail; + } + if (PHYSADDRLO(di->rxdpa) > SI_PCI_DMA_SZ) { + DMA_ERROR(("%s: dma_attach: rxdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(di->rxdpa))); + goto fail; + } + } + + DMA_TRACE(("ddoffsetlow 0x%x ddoffsethigh 0x%x dataoffsetlow 0x%x dataoffsethigh " "0x%x addrext %d\n", di->ddoffsetlow, di->ddoffsethigh, di->dataoffsetlow, di->dataoffsethigh, di->addrext)); + + /* allocate DMA mapping vectors */ + if (DMASGLIST_ENAB) { + if (ntxd) { + size = ntxd * sizeof(hnddma_seg_map_t); + di->txp_dmah = kzalloc(size, GFP_ATOMIC); + if (di->txp_dmah == NULL) + goto fail; + } + + if (nrxd) { + size = nrxd * sizeof(hnddma_seg_map_t); + di->rxp_dmah = kzalloc(size, GFP_ATOMIC); + if (di->rxp_dmah == NULL) + goto fail; + } + } + + return (struct hnddma_pub *) di; + + fail: + _dma_detach(di); + return NULL; +} + +/* Check for odd number of 1's */ +static inline u32 parity32(u32 data) +{ + data ^= data >> 16; + data ^= data >> 8; + data ^= data >> 4; + data ^= data >> 2; + data ^= data >> 1; + + return data & 1; +} + +#define DMA64_DD_PARITY(dd) parity32((dd)->addrlow ^ (dd)->addrhigh ^ (dd)->ctrl1 ^ (dd)->ctrl2) + +static inline void +dma64_dd_upd(dma_info_t *di, dma64dd_t *ddring, dmaaddr_t pa, uint outidx, + u32 *flags, u32 bufcount) +{ + u32 ctrl2 = bufcount & D64_CTRL2_BC_MASK; + + /* PCI bus with big(>1G) physical address, use address extension */ +#if defined(__mips__) && defined(IL_BIGENDIAN) + if ((di->dataoffsetlow == SI_SDRAM_SWAPPED) + || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { +#else + if ((di->dataoffsetlow == 0) || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { +#endif /* defined(__mips__) && defined(IL_BIGENDIAN) */ + + W_SM(&ddring[outidx].addrlow, + BUS_SWAP32(PHYSADDRLO(pa) + di->dataoffsetlow)); + W_SM(&ddring[outidx].addrhigh, + BUS_SWAP32(PHYSADDRHI(pa) + di->dataoffsethigh)); + W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags)); + W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2)); + } else { + /* address extension for 32-bit PCI */ + u32 ae; + + ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT; + PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH; + + ctrl2 |= (ae << D64_CTRL2_AE_SHIFT) & D64_CTRL2_AE; + W_SM(&ddring[outidx].addrlow, + BUS_SWAP32(PHYSADDRLO(pa) + di->dataoffsetlow)); + W_SM(&ddring[outidx].addrhigh, + BUS_SWAP32(0 + di->dataoffsethigh)); + W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags)); + W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2)); + } + if (di->hnddma.dmactrlflags & DMA_CTRL_PEN) { + if (DMA64_DD_PARITY(&ddring[outidx])) { + W_SM(&ddring[outidx].ctrl2, + BUS_SWAP32(ctrl2 | D64_CTRL2_PARITY)); + } + } +} + +static bool _dma_alloc(dma_info_t *di, uint direction) +{ + return dma64_alloc(di, direction); +} + +void *dma_alloc_consistent(struct pci_dev *pdev, uint size, u16 align_bits, + uint *alloced, unsigned long *pap) +{ + if (align_bits) { + u16 align = (1 << align_bits); + if (!IS_ALIGNED(PAGE_SIZE, align)) + size += align; + *alloced = size; + } + return pci_alloc_consistent(pdev, size, (dma_addr_t *) pap); +} + +/* !! may be called with core in reset */ +static void _dma_detach(dma_info_t *di) +{ + + DMA_TRACE(("%s: dma_detach\n", di->name)); + + /* free dma descriptor rings */ + if (di->txd64) + pci_free_consistent(di->pbus, di->txdalloc, + ((s8 *)di->txd64 - di->txdalign), + (di->txdpaorig)); + if (di->rxd64) + pci_free_consistent(di->pbus, di->rxdalloc, + ((s8 *)di->rxd64 - di->rxdalign), + (di->rxdpaorig)); + + /* free packet pointer vectors */ + kfree(di->txp); + kfree(di->rxp); + + /* free tx packet DMA handles */ + kfree(di->txp_dmah); + + /* free rx packet DMA handles */ + kfree(di->rxp_dmah); + + /* free our private info structure */ + kfree(di); + +} + +static bool _dma_descriptor_align(dma_info_t *di) +{ + u32 addrl; + + /* Check to see if the descriptors need to be aligned on 4K/8K or not */ + if (di->d64txregs != NULL) { + W_REG(&di->d64txregs->addrlow, 0xff0); + addrl = R_REG(&di->d64txregs->addrlow); + if (addrl != 0) + return false; + } else if (di->d64rxregs != NULL) { + W_REG(&di->d64rxregs->addrlow, 0xff0); + addrl = R_REG(&di->d64rxregs->addrlow); + if (addrl != 0) + return false; + } + return true; +} + +/* return true if this dma engine supports DmaExtendedAddrChanges, otherwise false */ +static bool _dma_isaddrext(dma_info_t *di) +{ + /* DMA64 supports full 32- or 64-bit operation. AE is always valid */ + + /* not all tx or rx channel are available */ + if (di->d64txregs != NULL) { + if (!_dma64_addrext(di->d64txregs)) { + DMA_ERROR(("%s: _dma_isaddrext: DMA64 tx doesn't have " + "AE set\n", di->name)); + } + return true; + } else if (di->d64rxregs != NULL) { + if (!_dma64_addrext(di->d64rxregs)) { + DMA_ERROR(("%s: _dma_isaddrext: DMA64 rx doesn't have " + "AE set\n", di->name)); + } + return true; + } + return false; +} + +/* initialize descriptor table base address */ +static void _dma_ddtable_init(dma_info_t *di, uint direction, dmaaddr_t pa) +{ + if (!di->aligndesc_4k) { + if (direction == DMA_TX) + di->xmtptrbase = PHYSADDRLO(pa); + else + di->rcvptrbase = PHYSADDRLO(pa); + } + + if ((di->ddoffsetlow == 0) + || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { + if (direction == DMA_TX) { + W_REG(&di->d64txregs->addrlow, + (PHYSADDRLO(pa) + di->ddoffsetlow)); + W_REG(&di->d64txregs->addrhigh, + (PHYSADDRHI(pa) + di->ddoffsethigh)); + } else { + W_REG(&di->d64rxregs->addrlow, + (PHYSADDRLO(pa) + di->ddoffsetlow)); + W_REG(&di->d64rxregs->addrhigh, + (PHYSADDRHI(pa) + di->ddoffsethigh)); + } + } else { + /* DMA64 32bits address extension */ + u32 ae; + + /* shift the high bit(s) from pa to ae */ + ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >> + PCI32ADDR_HIGH_SHIFT; + PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH; + + if (direction == DMA_TX) { + W_REG(&di->d64txregs->addrlow, + (PHYSADDRLO(pa) + di->ddoffsetlow)); + W_REG(&di->d64txregs->addrhigh, + di->ddoffsethigh); + SET_REG(&di->d64txregs->control, + D64_XC_AE, (ae << D64_XC_AE_SHIFT)); + } else { + W_REG(&di->d64rxregs->addrlow, + (PHYSADDRLO(pa) + di->ddoffsetlow)); + W_REG(&di->d64rxregs->addrhigh, + di->ddoffsethigh); + SET_REG(&di->d64rxregs->control, + D64_RC_AE, (ae << D64_RC_AE_SHIFT)); + } + } +} + +static void _dma_fifoloopbackenable(dma_info_t *di) +{ + DMA_TRACE(("%s: dma_fifoloopbackenable\n", di->name)); + + OR_REG(&di->d64txregs->control, D64_XC_LE); +} + +static void _dma_rxinit(dma_info_t *di) +{ + DMA_TRACE(("%s: dma_rxinit\n", di->name)); + + if (di->nrxd == 0) + return; + + di->rxin = di->rxout = 0; + + /* clear rx descriptor ring */ + memset((void *)di->rxd64, '\0', + (di->nrxd * sizeof(dma64dd_t))); + + /* DMA engine with out alignment requirement requires table to be inited + * before enabling the engine + */ + if (!di->aligndesc_4k) + _dma_ddtable_init(di, DMA_RX, di->rxdpa); + + _dma_rxenable(di); + + if (di->aligndesc_4k) + _dma_ddtable_init(di, DMA_RX, di->rxdpa); +} + +static void _dma_rxenable(dma_info_t *di) +{ + uint dmactrlflags = di->hnddma.dmactrlflags; + u32 control; + + DMA_TRACE(("%s: dma_rxenable\n", di->name)); + + control = + (R_REG(&di->d64rxregs->control) & D64_RC_AE) | + D64_RC_RE; + + if ((dmactrlflags & DMA_CTRL_PEN) == 0) + control |= D64_RC_PD; + + if (dmactrlflags & DMA_CTRL_ROC) + control |= D64_RC_OC; + + W_REG(&di->d64rxregs->control, + ((di->rxoffset << D64_RC_RO_SHIFT) | control)); +} + +static void +_dma_rx_param_get(dma_info_t *di, u16 *rxoffset, u16 *rxbufsize) +{ + /* the normal values fit into 16 bits */ + *rxoffset = (u16) di->rxoffset; + *rxbufsize = (u16) di->rxbufsize; +} + +/* !! rx entry routine + * returns a pointer to the next frame received, or NULL if there are no more + * if DMA_CTRL_RXMULTI is defined, DMA scattering(multiple buffers) is supported + * with pkts chain + * otherwise, it's treated as giant pkt and will be tossed. + * The DMA scattering starts with normal DMA header, followed by first buffer data. + * After it reaches the max size of buffer, the data continues in next DMA descriptor + * buffer WITHOUT DMA header + */ +static void *_dma_rx(dma_info_t *di) +{ + struct sk_buff *p, *head, *tail; + uint len; + uint pkt_len; + int resid = 0; + + next_frame: + head = _dma_getnextrxp(di, false); + if (head == NULL) + return NULL; + + len = le16_to_cpu(*(u16 *) (head->data)); + DMA_TRACE(("%s: dma_rx len %d\n", di->name, len)); + dma_spin_for_len(len, head); + + /* set actual length */ + pkt_len = min((di->rxoffset + len), di->rxbufsize); + __skb_trim(head, pkt_len); + resid = len - (di->rxbufsize - di->rxoffset); + + /* check for single or multi-buffer rx */ + if (resid > 0) { + tail = head; + while ((resid > 0) && (p = _dma_getnextrxp(di, false))) { + tail->next = p; + pkt_len = min(resid, (int)di->rxbufsize); + __skb_trim(p, pkt_len); + + tail = p; + resid -= di->rxbufsize; + } + +#ifdef BCMDBG + if (resid > 0) { + uint cur; + cur = + B2I(((R_REG(&di->d64rxregs->status0) & + D64_RS0_CD_MASK) - + di->rcvptrbase) & D64_RS0_CD_MASK, + dma64dd_t); + DMA_ERROR(("_dma_rx, rxin %d rxout %d, hw_curr %d\n", + di->rxin, di->rxout, cur)); + } +#endif /* BCMDBG */ + + if ((di->hnddma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) { + DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n", + di->name, len)); + bcm_pkt_buf_free_skb(head); + di->hnddma.rxgiants++; + goto next_frame; + } + } + + return head; +} + +/* post receive buffers + * return false is refill failed completely and ring is empty + * this will stall the rx dma and user might want to call rxfill again asap + * This unlikely happens on memory-rich NIC, but often on memory-constrained dongle + */ +static bool _dma_rxfill(dma_info_t *di) +{ + struct sk_buff *p; + u16 rxin, rxout; + u32 flags = 0; + uint n; + uint i; + dmaaddr_t pa; + uint extra_offset = 0; + bool ring_empty; + + ring_empty = false; + + /* + * Determine how many receive buffers we're lacking + * from the full complement, allocate, initialize, + * and post them, then update the chip rx lastdscr. + */ + + rxin = di->rxin; + rxout = di->rxout; + + n = di->nrxpost - NRXDACTIVE(rxin, rxout); + + DMA_TRACE(("%s: dma_rxfill: post %d\n", di->name, n)); + + if (di->rxbufsize > BCMEXTRAHDROOM) + extra_offset = di->rxextrahdrroom; + + for (i = 0; i < n; i++) { + /* the di->rxbufsize doesn't include the extra headroom, we need to add it to the + size to be allocated + */ + + p = bcm_pkt_buf_get_skb(di->rxbufsize + extra_offset); + + if (p == NULL) { + DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n", + di->name)); + if (i == 0 && dma64_rxidle(di)) { + DMA_ERROR(("%s: rxfill64: ring is empty !\n", + di->name)); + ring_empty = true; + } + di->hnddma.rxnobuf++; + break; + } + /* reserve an extra headroom, if applicable */ + if (extra_offset) + skb_pull(p, extra_offset); + + /* Do a cached write instead of uncached write since DMA_MAP + * will flush the cache. + */ + *(u32 *) (p->data) = 0; + + if (DMASGLIST_ENAB) + memset(&di->rxp_dmah[rxout], 0, + sizeof(hnddma_seg_map_t)); + + pa = pci_map_single(di->pbus, p->data, + di->rxbufsize, PCI_DMA_FROMDEVICE); + + /* save the free packet pointer */ + di->rxp[rxout] = p; + + /* reset flags for each descriptor */ + flags = 0; + if (rxout == (di->nrxd - 1)) + flags = D64_CTRL1_EOT; + + dma64_dd_upd(di, di->rxd64, pa, rxout, &flags, + di->rxbufsize); + rxout = NEXTRXD(rxout); + } + + di->rxout = rxout; + + /* update the chip lastdscr pointer */ + W_REG(&di->d64rxregs->ptr, + di->rcvptrbase + I2B(rxout, dma64dd_t)); + + return ring_empty; +} + +/* like getnexttxp but no reclaim */ +static void *_dma_peeknexttxp(dma_info_t *di) +{ + uint end, i; + + if (di->ntxd == 0) + return NULL; + + end = + B2I(((R_REG(&di->d64txregs->status0) & + D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK, + dma64dd_t); + + for (i = di->txin; i != end; i = NEXTTXD(i)) + if (di->txp[i]) + return di->txp[i]; + + return NULL; +} + +/* like getnextrxp but not take off the ring */ +static void *_dma_peeknextrxp(dma_info_t *di) +{ + uint end, i; + + if (di->nrxd == 0) + return NULL; + + end = + B2I(((R_REG(&di->d64rxregs->status0) & + D64_RS0_CD_MASK) - di->rcvptrbase) & D64_RS0_CD_MASK, + dma64dd_t); + + for (i = di->rxin; i != end; i = NEXTRXD(i)) + if (di->rxp[i]) + return di->rxp[i]; + + return NULL; +} + +static void _dma_rxreclaim(dma_info_t *di) +{ + void *p; + + DMA_TRACE(("%s: dma_rxreclaim\n", di->name)); + + while ((p = _dma_getnextrxp(di, true))) + bcm_pkt_buf_free_skb(p); +} + +static void *_dma_getnextrxp(dma_info_t *di, bool forceall) +{ + if (di->nrxd == 0) + return NULL; + + return dma64_getnextrxp(di, forceall); +} + +static void _dma_txblock(dma_info_t *di) +{ + di->hnddma.txavail = 0; +} + +static void _dma_txunblock(dma_info_t *di) +{ + di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; +} + +static uint _dma_txactive(dma_info_t *di) +{ + return NTXDACTIVE(di->txin, di->txout); +} + +static uint _dma_txpending(dma_info_t *di) +{ + uint curr; + + curr = + B2I(((R_REG(&di->d64txregs->status0) & + D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK, + dma64dd_t); + + return NTXDACTIVE(curr, di->txout); +} + +static uint _dma_txcommitted(dma_info_t *di) +{ + uint ptr; + uint txin = di->txin; + + if (txin == di->txout) + return 0; + + ptr = B2I(R_REG(&di->d64txregs->ptr), dma64dd_t); + + return NTXDACTIVE(di->txin, ptr); +} + +static uint _dma_rxactive(dma_info_t *di) +{ + return NRXDACTIVE(di->rxin, di->rxout); +} + +static void _dma_counterreset(dma_info_t *di) +{ + /* reset all software counter */ + di->hnddma.rxgiants = 0; + di->hnddma.rxnobuf = 0; + di->hnddma.txnobuf = 0; +} + +static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags) +{ + uint dmactrlflags = di->hnddma.dmactrlflags; + + if (di == NULL) { + DMA_ERROR(("%s: _dma_ctrlflags: NULL dma handle\n", di->name)); + return 0; + } + + dmactrlflags &= ~mask; + dmactrlflags |= flags; + + /* If trying to enable parity, check if parity is actually supported */ + if (dmactrlflags & DMA_CTRL_PEN) { + u32 control; + + control = R_REG(&di->d64txregs->control); + W_REG(&di->d64txregs->control, + control | D64_XC_PD); + if (R_REG(&di->d64txregs->control) & D64_XC_PD) { + /* We *can* disable it so it is supported, + * restore control register + */ + W_REG(&di->d64txregs->control, + control); + } else { + /* Not supported, don't allow it to be enabled */ + dmactrlflags &= ~DMA_CTRL_PEN; + } + } + + di->hnddma.dmactrlflags = dmactrlflags; + + return dmactrlflags; +} + +/* get the address of the var in order to change later */ +static unsigned long _dma_getvar(dma_info_t *di, const char *name) +{ + if (!strcmp(name, "&txavail")) + return (unsigned long)&(di->hnddma.txavail); + return 0; +} + +static +u8 dma_align_sizetobits(uint size) +{ + u8 bitpos = 0; + while (size >>= 1) { + bitpos++; + } + return bitpos; +} + +/* This function ensures that the DMA descriptor ring will not get allocated + * across Page boundary. If the allocation is done across the page boundary + * at the first time, then it is freed and the allocation is done at + * descriptor ring size aligned location. This will ensure that the ring will + * not cross page boundary + */ +static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size, + u16 *alignbits, uint *alloced, + dmaaddr_t *descpa) +{ + void *va; + u32 desc_strtaddr; + u32 alignbytes = 1 << *alignbits; + + va = dma_alloc_consistent(di->pbus, size, *alignbits, alloced, descpa); + + if (NULL == va) + return NULL; + + desc_strtaddr = (u32) roundup((unsigned long)va, alignbytes); + if (((desc_strtaddr + size - 1) & boundary) != (desc_strtaddr + & boundary)) { + *alignbits = dma_align_sizetobits(size); + pci_free_consistent(di->pbus, size, va, *descpa); + va = dma_alloc_consistent(di->pbus, size, *alignbits, + alloced, descpa); + } + return va; +} + +/* 64-bit DMA functions */ + +static void dma64_txinit(dma_info_t *di) +{ + u32 control = D64_XC_XE; + + DMA_TRACE(("%s: dma_txinit\n", di->name)); + + if (di->ntxd == 0) + return; + + di->txin = di->txout = 0; + di->hnddma.txavail = di->ntxd - 1; + + /* clear tx descriptor ring */ + memset((void *)di->txd64, '\0', (di->ntxd * sizeof(dma64dd_t))); + + /* DMA engine with out alignment requirement requires table to be inited + * before enabling the engine + */ + if (!di->aligndesc_4k) + _dma_ddtable_init(di, DMA_TX, di->txdpa); + + if ((di->hnddma.dmactrlflags & DMA_CTRL_PEN) == 0) + control |= D64_XC_PD; + OR_REG(&di->d64txregs->control, control); + + /* DMA engine with alignment requirement requires table to be inited + * before enabling the engine + */ + if (di->aligndesc_4k) + _dma_ddtable_init(di, DMA_TX, di->txdpa); +} + +static bool dma64_txenabled(dma_info_t *di) +{ + u32 xc; + + /* If the chip is dead, it is not enabled :-) */ + xc = R_REG(&di->d64txregs->control); + return (xc != 0xffffffff) && (xc & D64_XC_XE); +} + +static void dma64_txsuspend(dma_info_t *di) +{ + DMA_TRACE(("%s: dma_txsuspend\n", di->name)); + + if (di->ntxd == 0) + return; + + OR_REG(&di->d64txregs->control, D64_XC_SE); +} + +static void dma64_txresume(dma_info_t *di) +{ + DMA_TRACE(("%s: dma_txresume\n", di->name)); + + if (di->ntxd == 0) + return; + + AND_REG(&di->d64txregs->control, ~D64_XC_SE); +} + +static bool dma64_txsuspended(dma_info_t *di) +{ + return (di->ntxd == 0) || + ((R_REG(&di->d64txregs->control) & D64_XC_SE) == + D64_XC_SE); +} + +static void dma64_txreclaim(dma_info_t *di, txd_range_t range) +{ + void *p; + + DMA_TRACE(("%s: dma_txreclaim %s\n", di->name, + (range == HNDDMA_RANGE_ALL) ? "all" : + ((range == + HNDDMA_RANGE_TRANSMITTED) ? "transmitted" : + "transferred"))); + + if (di->txin == di->txout) + return; + + while ((p = dma64_getnexttxp(di, range))) { + /* For unframed data, we don't have any packets to free */ + if (!(di->hnddma.dmactrlflags & DMA_CTRL_UNFRAMED)) + bcm_pkt_buf_free_skb(p); + } +} + +static bool dma64_txstopped(dma_info_t *di) +{ + return ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) == + D64_XS0_XS_STOPPED); +} + +static bool dma64_rxstopped(dma_info_t *di) +{ + return ((R_REG(&di->d64rxregs->status0) & D64_RS0_RS_MASK) == + D64_RS0_RS_STOPPED); +} + +static bool dma64_alloc(dma_info_t *di, uint direction) +{ + u16 size; + uint ddlen; + void *va; + uint alloced = 0; + u16 align; + u16 align_bits; + + ddlen = sizeof(dma64dd_t); + + size = (direction == DMA_TX) ? (di->ntxd * ddlen) : (di->nrxd * ddlen); + align_bits = di->dmadesc_align; + align = (1 << align_bits); + + if (direction == DMA_TX) { + va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, + &alloced, &di->txdpaorig); + if (va == NULL) { + DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(ntxd) failed\n", di->name)); + return false; + } + align = (1 << align_bits); + di->txd64 = (dma64dd_t *) roundup((unsigned long)va, align); + di->txdalign = (uint) ((s8 *)di->txd64 - (s8 *) va); + PHYSADDRLOSET(di->txdpa, + PHYSADDRLO(di->txdpaorig) + di->txdalign); + PHYSADDRHISET(di->txdpa, PHYSADDRHI(di->txdpaorig)); + di->txdalloc = alloced; + } else { + va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, + &alloced, &di->rxdpaorig); + if (va == NULL) { + DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(nrxd) failed\n", di->name)); + return false; + } + align = (1 << align_bits); + di->rxd64 = (dma64dd_t *) roundup((unsigned long)va, align); + di->rxdalign = (uint) ((s8 *)di->rxd64 - (s8 *) va); + PHYSADDRLOSET(di->rxdpa, + PHYSADDRLO(di->rxdpaorig) + di->rxdalign); + PHYSADDRHISET(di->rxdpa, PHYSADDRHI(di->rxdpaorig)); + di->rxdalloc = alloced; + } + + return true; +} + +static bool dma64_txreset(dma_info_t *di) +{ + u32 status; + + if (di->ntxd == 0) + return true; + + /* suspend tx DMA first */ + W_REG(&di->d64txregs->control, D64_XC_SE); + SPINWAIT(((status = + (R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK)) + != D64_XS0_XS_DISABLED) && (status != D64_XS0_XS_IDLE) + && (status != D64_XS0_XS_STOPPED), 10000); + + W_REG(&di->d64txregs->control, 0); + SPINWAIT(((status = + (R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK)) + != D64_XS0_XS_DISABLED), 10000); + + /* wait for the last transaction to complete */ + udelay(300); + + return status == D64_XS0_XS_DISABLED; +} + +static bool dma64_rxidle(dma_info_t *di) +{ + DMA_TRACE(("%s: dma_rxidle\n", di->name)); + + if (di->nrxd == 0) + return true; + + return ((R_REG(&di->d64rxregs->status0) & D64_RS0_CD_MASK) == + (R_REG(&di->d64rxregs->ptr) & D64_RS0_CD_MASK)); +} + +static bool dma64_rxreset(dma_info_t *di) +{ + u32 status; + + if (di->nrxd == 0) + return true; + + W_REG(&di->d64rxregs->control, 0); + SPINWAIT(((status = + (R_REG(&di->d64rxregs->status0) & D64_RS0_RS_MASK)) + != D64_RS0_RS_DISABLED), 10000); + + return status == D64_RS0_RS_DISABLED; +} + +static bool dma64_rxenabled(dma_info_t *di) +{ + u32 rc; + + rc = R_REG(&di->d64rxregs->control); + return (rc != 0xffffffff) && (rc & D64_RC_RE); +} + +static bool dma64_txsuspendedidle(dma_info_t *di) +{ + + if (di->ntxd == 0) + return true; + + if (!(R_REG(&di->d64txregs->control) & D64_XC_SE)) + return 0; + + if ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) == + D64_XS0_XS_IDLE) + return 1; + + return 0; +} + +/* Useful when sending unframed data. This allows us to get a progress report from the DMA. + * We return a pointer to the beginning of the DATA buffer of the current descriptor. + * If DMA is idle, we return NULL. + */ +static void *dma64_getpos(dma_info_t *di, bool direction) +{ + void *va; + bool idle; + u32 cd_offset; + + if (direction == DMA_TX) { + cd_offset = + R_REG(&di->d64txregs->status0) & D64_XS0_CD_MASK; + idle = !NTXDACTIVE(di->txin, di->txout); + va = di->txp[B2I(cd_offset, dma64dd_t)]; + } else { + cd_offset = + R_REG(&di->d64rxregs->status0) & D64_XS0_CD_MASK; + idle = !NRXDACTIVE(di->rxin, di->rxout); + va = di->rxp[B2I(cd_offset, dma64dd_t)]; + } + + /* If DMA is IDLE, return NULL */ + if (idle) { + DMA_TRACE(("%s: DMA idle, return NULL\n", __func__)); + va = NULL; + } + + return va; +} + +/* TX of unframed data + * + * Adds a DMA ring descriptor for the data pointed to by "buf". + * This is for DMA of a buffer of data and is unlike other hnddma TX functions + * that take a pointer to a "packet" + * Each call to this is results in a single descriptor being added for "len" bytes of + * data starting at "buf", it doesn't handle chained buffers. + */ +static int dma64_txunframed(dma_info_t *di, void *buf, uint len, bool commit) +{ + u16 txout; + u32 flags = 0; + dmaaddr_t pa; /* phys addr */ + + txout = di->txout; + + /* return nonzero if out of tx descriptors */ + if (NEXTTXD(txout) == di->txin) + goto outoftxd; + + if (len == 0) + return 0; + + pa = pci_map_single(di->pbus, buf, len, PCI_DMA_TODEVICE); + + flags = (D64_CTRL1_SOF | D64_CTRL1_IOC | D64_CTRL1_EOF); + + if (txout == (di->ntxd - 1)) + flags |= D64_CTRL1_EOT; + + dma64_dd_upd(di, di->txd64, pa, txout, &flags, len); + + /* save the buffer pointer - used by dma_getpos */ + di->txp[txout] = buf; + + txout = NEXTTXD(txout); + /* bump the tx descriptor index */ + di->txout = txout; + + /* kick the chip */ + if (commit) { + W_REG(&di->d64txregs->ptr, + di->xmtptrbase + I2B(txout, dma64dd_t)); + } + + /* tx flow control */ + di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; + + return 0; + + outoftxd: + DMA_ERROR(("%s: %s: out of txds !!!\n", di->name, __func__)); + di->hnddma.txavail = 0; + di->hnddma.txnobuf++; + return -1; +} + +/* !! tx entry routine + * WARNING: call must check the return value for error. + * the error(toss frames) could be fatal and cause many subsequent hard to debug problems + */ +static int dma64_txfast(dma_info_t *di, struct sk_buff *p0, + bool commit) +{ + struct sk_buff *p, *next; + unsigned char *data; + uint len; + u16 txout; + u32 flags = 0; + dmaaddr_t pa; + + DMA_TRACE(("%s: dma_txfast\n", di->name)); + + txout = di->txout; + + /* + * Walk the chain of packet buffers + * allocating and initializing transmit descriptor entries. + */ + for (p = p0; p; p = next) { + uint nsegs, j; + hnddma_seg_map_t *map; + + data = p->data; + len = p->len; + next = p->next; + + /* return nonzero if out of tx descriptors */ + if (NEXTTXD(txout) == di->txin) + goto outoftxd; + + if (len == 0) + continue; + + /* get physical address of buffer start */ + if (DMASGLIST_ENAB) + memset(&di->txp_dmah[txout], 0, + sizeof(hnddma_seg_map_t)); + + pa = pci_map_single(di->pbus, data, len, PCI_DMA_TODEVICE); + + if (DMASGLIST_ENAB) { + map = &di->txp_dmah[txout]; + + /* See if all the segments can be accounted for */ + if (map->nsegs > + (uint) (di->ntxd - NTXDACTIVE(di->txin, di->txout) - + 1)) + goto outoftxd; + + nsegs = map->nsegs; + } else + nsegs = 1; + + for (j = 1; j <= nsegs; j++) { + flags = 0; + if (p == p0 && j == 1) + flags |= D64_CTRL1_SOF; + + /* With a DMA segment list, Descriptor table is filled + * using the segment list instead of looping over + * buffers in multi-chain DMA. Therefore, EOF for SGLIST is when + * end of segment list is reached. + */ + if ((!DMASGLIST_ENAB && next == NULL) || + (DMASGLIST_ENAB && j == nsegs)) + flags |= (D64_CTRL1_IOC | D64_CTRL1_EOF); + if (txout == (di->ntxd - 1)) + flags |= D64_CTRL1_EOT; + + if (DMASGLIST_ENAB) { + len = map->segs[j - 1].length; + pa = map->segs[j - 1].addr; + } + dma64_dd_upd(di, di->txd64, pa, txout, &flags, len); + + txout = NEXTTXD(txout); + } + + /* See above. No need to loop over individual buffers */ + if (DMASGLIST_ENAB) + break; + } + + /* if last txd eof not set, fix it */ + if (!(flags & D64_CTRL1_EOF)) + W_SM(&di->txd64[PREVTXD(txout)].ctrl1, + BUS_SWAP32(flags | D64_CTRL1_IOC | D64_CTRL1_EOF)); + + /* save the packet */ + di->txp[PREVTXD(txout)] = p0; + + /* bump the tx descriptor index */ + di->txout = txout; + + /* kick the chip */ + if (commit) + W_REG(&di->d64txregs->ptr, + di->xmtptrbase + I2B(txout, dma64dd_t)); + + /* tx flow control */ + di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; + + return 0; + + outoftxd: + DMA_ERROR(("%s: dma_txfast: out of txds !!!\n", di->name)); + bcm_pkt_buf_free_skb(p0); + di->hnddma.txavail = 0; + di->hnddma.txnobuf++; + return -1; +} + +/* + * Reclaim next completed txd (txds if using chained buffers) in the range + * specified and return associated packet. + * If range is HNDDMA_RANGE_TRANSMITTED, reclaim descriptors that have be + * transmitted as noted by the hardware "CurrDescr" pointer. + * If range is HNDDMA_RANGE_TRANSFERED, reclaim descriptors that have be + * transferred by the DMA as noted by the hardware "ActiveDescr" pointer. + * If range is HNDDMA_RANGE_ALL, reclaim all txd(s) posted to the ring and + * return associated packet regardless of the value of hardware pointers. + */ +static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range) +{ + u16 start, end, i; + u16 active_desc; + void *txp; + + DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name, + (range == HNDDMA_RANGE_ALL) ? "all" : + ((range == + HNDDMA_RANGE_TRANSMITTED) ? "transmitted" : + "transferred"))); + + if (di->ntxd == 0) + return NULL; + + txp = NULL; + + start = di->txin; + if (range == HNDDMA_RANGE_ALL) + end = di->txout; + else { + dma64regs_t *dregs = di->d64txregs; + + end = + (u16) (B2I + (((R_REG(&dregs->status0) & + D64_XS0_CD_MASK) - + di->xmtptrbase) & D64_XS0_CD_MASK, dma64dd_t)); + + if (range == HNDDMA_RANGE_TRANSFERED) { + active_desc = + (u16) (R_REG(&dregs->status1) & + D64_XS1_AD_MASK); + active_desc = + (active_desc - di->xmtptrbase) & D64_XS0_CD_MASK; + active_desc = B2I(active_desc, dma64dd_t); + if (end != active_desc) + end = PREVTXD(active_desc); + } + } + + if ((start == 0) && (end > di->txout)) + goto bogus; + + for (i = start; i != end && !txp; i = NEXTTXD(i)) { + dmaaddr_t pa; + hnddma_seg_map_t *map = NULL; + uint size, j, nsegs; + + PHYSADDRLOSET(pa, + (BUS_SWAP32(R_SM(&di->txd64[i].addrlow)) - + di->dataoffsetlow)); + PHYSADDRHISET(pa, + (BUS_SWAP32(R_SM(&di->txd64[i].addrhigh)) - + di->dataoffsethigh)); + + if (DMASGLIST_ENAB) { + map = &di->txp_dmah[i]; + size = map->origsize; + nsegs = map->nsegs; + } else { + size = + (BUS_SWAP32(R_SM(&di->txd64[i].ctrl2)) & + D64_CTRL2_BC_MASK); + nsegs = 1; + } + + for (j = nsegs; j > 0; j--) { + W_SM(&di->txd64[i].addrlow, 0xdeadbeef); + W_SM(&di->txd64[i].addrhigh, 0xdeadbeef); + + txp = di->txp[i]; + di->txp[i] = NULL; + if (j > 1) + i = NEXTTXD(i); + } + + pci_unmap_single(di->pbus, pa, size, PCI_DMA_TODEVICE); + } + + di->txin = i; + + /* tx flow control */ + di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; + + return txp; + + bogus: + DMA_NONE(("dma_getnexttxp: bogus curr: start %d end %d txout %d force %d\n", start, end, di->txout, forceall)); + return NULL; +} + +static void *dma64_getnextrxp(dma_info_t *di, bool forceall) +{ + uint i, curr; + void *rxp; + dmaaddr_t pa; + + i = di->rxin; + + /* return if no packets posted */ + if (i == di->rxout) + return NULL; + + curr = + B2I(((R_REG(&di->d64rxregs->status0) & D64_RS0_CD_MASK) - + di->rcvptrbase) & D64_RS0_CD_MASK, dma64dd_t); + + /* ignore curr if forceall */ + if (!forceall && (i == curr)) + return NULL; + + /* get the packet pointer that corresponds to the rx descriptor */ + rxp = di->rxp[i]; + di->rxp[i] = NULL; + + PHYSADDRLOSET(pa, + (BUS_SWAP32(R_SM(&di->rxd64[i].addrlow)) - + di->dataoffsetlow)); + PHYSADDRHISET(pa, + (BUS_SWAP32(R_SM(&di->rxd64[i].addrhigh)) - + di->dataoffsethigh)); + + /* clear this packet from the descriptor ring */ + pci_unmap_single(di->pbus, pa, di->rxbufsize, PCI_DMA_FROMDEVICE); + + W_SM(&di->rxd64[i].addrlow, 0xdeadbeef); + W_SM(&di->rxd64[i].addrhigh, 0xdeadbeef); + + di->rxin = NEXTRXD(i); + + return rxp; +} + +static bool _dma64_addrext(dma64regs_t *dma64regs) +{ + u32 w; + OR_REG(&dma64regs->control, D64_XC_AE); + w = R_REG(&dma64regs->control); + AND_REG(&dma64regs->control, ~D64_XC_AE); + return (w & D64_XC_AE) == D64_XC_AE; +} + +/* + * Rotate all active tx dma ring entries "forward" by (ActiveDescriptor - txin). + */ +static void dma64_txrotate(dma_info_t *di) +{ + u16 ad; + uint nactive; + uint rot; + u16 old, new; + u32 w; + u16 first, last; + + nactive = _dma_txactive(di); + ad = (u16) (B2I + ((((R_REG(&di->d64txregs->status1) & + D64_XS1_AD_MASK) + - di->xmtptrbase) & D64_XS1_AD_MASK), dma64dd_t)); + rot = TXD(ad - di->txin); + + /* full-ring case is a lot harder - don't worry about this */ + if (rot >= (di->ntxd - nactive)) { + DMA_ERROR(("%s: dma_txrotate: ring full - punt\n", di->name)); + return; + } + + first = di->txin; + last = PREVTXD(di->txout); + + /* move entries starting at last and moving backwards to first */ + for (old = last; old != PREVTXD(first); old = PREVTXD(old)) { + new = TXD(old + rot); + + /* + * Move the tx dma descriptor. + * EOT is set only in the last entry in the ring. + */ + w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl1)) & ~D64_CTRL1_EOT; + if (new == (di->ntxd - 1)) + w |= D64_CTRL1_EOT; + W_SM(&di->txd64[new].ctrl1, BUS_SWAP32(w)); + + w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl2)); + W_SM(&di->txd64[new].ctrl2, BUS_SWAP32(w)); + + W_SM(&di->txd64[new].addrlow, R_SM(&di->txd64[old].addrlow)); + W_SM(&di->txd64[new].addrhigh, R_SM(&di->txd64[old].addrhigh)); + + /* zap the old tx dma descriptor address field */ + W_SM(&di->txd64[old].addrlow, BUS_SWAP32(0xdeadbeef)); + W_SM(&di->txd64[old].addrhigh, BUS_SWAP32(0xdeadbeef)); + + /* move the corresponding txp[] entry */ + di->txp[new] = di->txp[old]; + + /* Move the map */ + if (DMASGLIST_ENAB) { + memcpy(&di->txp_dmah[new], &di->txp_dmah[old], + sizeof(hnddma_seg_map_t)); + memset(&di->txp_dmah[old], 0, sizeof(hnddma_seg_map_t)); + } + + di->txp[old] = NULL; + } + + /* update txin and txout */ + di->txin = ad; + di->txout = TXD(di->txout + rot); + di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; + + /* kick the chip */ + W_REG(&di->d64txregs->ptr, + di->xmtptrbase + I2B(di->txout, dma64dd_t)); +} + +uint dma_addrwidth(si_t *sih, void *dmaregs) +{ + /* Perform 64-bit checks only if we want to advertise 64-bit (> 32bit) capability) */ + /* DMA engine is 64-bit capable */ + if ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64) { + /* backplane are 64-bit capable */ + if (ai_backplane64(sih)) + /* If bus is System Backplane or PCIE then we can access 64-bits */ + if ((sih->bustype == SI_BUS) || + ((sih->bustype == PCI_BUS) && + (sih->buscoretype == PCIE_CORE_ID))) + return DMADDRWIDTH_64; + } + /* DMA hardware not supported by this driver*/ + return DMADDRWIDTH_64; +} + +/* + * Mac80211 initiated actions sometimes require packets in the DMA queue to be + * modified. The modified portion of the packet is not under control of the DMA + * engine. This function calls a caller-supplied function for each packet in + * the caller specified dma chain. + */ +void dma_walk_packets(struct hnddma_pub *dmah, void (*callback_fnc) + (void *pkt, void *arg_a), void *arg_a) +{ + dma_info_t *di = (dma_info_t *) dmah; + uint i = di->txin; + uint end = di->txout; + struct sk_buff *skb; + struct ieee80211_tx_info *tx_info; + + while (i != end) { + skb = (struct sk_buff *)di->txp[i]; + if (skb != NULL) { + tx_info = (struct ieee80211_tx_info *)skb->cb; + (callback_fnc)(tx_info, arg_a); + } + i = NEXTTXD(i); + } +} diff --git a/drivers/staging/brcm80211/brcmsmac/hnddma.c b/drivers/staging/brcm80211/brcmsmac/hnddma.c deleted file mode 100644 index f607315f8143..000000000000 --- a/drivers/staging/brcm80211/brcmsmac/hnddma.c +++ /dev/null @@ -1,1756 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#if defined(__mips__) -#include -#endif - -#ifdef BRCM_FULLMAC -#error "hnddma.c shouldn't be needed for FULLMAC" -#endif - -/* debug/trace */ -#ifdef BCMDBG -#define DMA_ERROR(args) \ - do { \ - if (!(*di->msg_level & 1)) \ - ; \ - else \ - printk args; \ - } while (0) -#define DMA_TRACE(args) \ - do { \ - if (!(*di->msg_level & 2)) \ - ; \ - else \ - printk args; \ - } while (0) -#else -#define DMA_ERROR(args) -#define DMA_TRACE(args) -#endif /* BCMDBG */ - -#define DMA_NONE(args) - -#define d64txregs dregs.d64_u.txregs_64 -#define d64rxregs dregs.d64_u.rxregs_64 -#define txd64 dregs.d64_u.txd_64 -#define rxd64 dregs.d64_u.rxd_64 - -/* default dma message level (if input msg_level pointer is null in dma_attach()) */ -static uint dma_msg_level; - -#define MAXNAMEL 8 /* 8 char names */ - -#define DI_INFO(dmah) ((dma_info_t *)dmah) - -#define R_SM(r) (*(r)) -#define W_SM(r, v) (*(r) = (v)) - -/* dma engine software state */ -typedef struct dma_info { - struct hnddma_pub hnddma; /* exported structure */ - uint *msg_level; /* message level pointer */ - char name[MAXNAMEL]; /* callers name for diag msgs */ - - void *pbus; /* bus handle */ - - bool dma64; /* this dma engine is operating in 64-bit mode */ - bool addrext; /* this dma engine supports DmaExtendedAddrChanges */ - - union { - struct { - dma64regs_t *txregs_64; /* 64-bit dma tx engine registers */ - dma64regs_t *rxregs_64; /* 64-bit dma rx engine registers */ - dma64dd_t *txd_64; /* pointer to dma64 tx descriptor ring */ - dma64dd_t *rxd_64; /* pointer to dma64 rx descriptor ring */ - } d64_u; - } dregs; - - u16 dmadesc_align; /* alignment requirement for dma descriptors */ - - u16 ntxd; /* # tx descriptors tunable */ - u16 txin; /* index of next descriptor to reclaim */ - u16 txout; /* index of next descriptor to post */ - void **txp; /* pointer to parallel array of pointers to packets */ - hnddma_seg_map_t *txp_dmah; /* DMA MAP meta-data handle */ - dmaaddr_t txdpa; /* Aligned physical address of descriptor ring */ - dmaaddr_t txdpaorig; /* Original physical address of descriptor ring */ - u16 txdalign; /* #bytes added to alloc'd mem to align txd */ - u32 txdalloc; /* #bytes allocated for the ring */ - u32 xmtptrbase; /* When using unaligned descriptors, the ptr register - * is not just an index, it needs all 13 bits to be - * an offset from the addr register. - */ - - u16 nrxd; /* # rx descriptors tunable */ - u16 rxin; /* index of next descriptor to reclaim */ - u16 rxout; /* index of next descriptor to post */ - void **rxp; /* pointer to parallel array of pointers to packets */ - hnddma_seg_map_t *rxp_dmah; /* DMA MAP meta-data handle */ - dmaaddr_t rxdpa; /* Aligned physical address of descriptor ring */ - dmaaddr_t rxdpaorig; /* Original physical address of descriptor ring */ - u16 rxdalign; /* #bytes added to alloc'd mem to align rxd */ - u32 rxdalloc; /* #bytes allocated for the ring */ - u32 rcvptrbase; /* Base for ptr reg when using unaligned descriptors */ - - /* tunables */ - unsigned int rxbufsize; /* rx buffer size in bytes, - * not including the extra headroom - */ - uint rxextrahdrroom; /* extra rx headroom, reverseved to assist upper stack - * e.g. some rx pkt buffers will be bridged to tx side - * without byte copying. The extra headroom needs to be - * large enough to fit txheader needs. - * Some dongle driver may not need it. - */ - uint nrxpost; /* # rx buffers to keep posted */ - unsigned int rxoffset; /* rxcontrol offset */ - uint ddoffsetlow; /* add to get dma address of descriptor ring, low 32 bits */ - uint ddoffsethigh; /* high 32 bits */ - uint dataoffsetlow; /* add to get dma address of data buffer, low 32 bits */ - uint dataoffsethigh; /* high 32 bits */ - bool aligndesc_4k; /* descriptor base need to be aligned or not */ -} dma_info_t; - -/* DMA Scatter-gather list is supported. Note this is limited to TX direction only */ -#ifdef BCMDMASGLISTOSL -#define DMASGLIST_ENAB true -#else -#define DMASGLIST_ENAB false -#endif /* BCMDMASGLISTOSL */ - -/* descriptor bumping macros */ -#define XXD(x, n) ((x) & ((n) - 1)) /* faster than %, but n must be power of 2 */ -#define TXD(x) XXD((x), di->ntxd) -#define RXD(x) XXD((x), di->nrxd) -#define NEXTTXD(i) TXD((i) + 1) -#define PREVTXD(i) TXD((i) - 1) -#define NEXTRXD(i) RXD((i) + 1) -#define PREVRXD(i) RXD((i) - 1) - -#define NTXDACTIVE(h, t) TXD((t) - (h)) -#define NRXDACTIVE(h, t) RXD((t) - (h)) - -/* macros to convert between byte offsets and indexes */ -#define B2I(bytes, type) ((bytes) / sizeof(type)) -#define I2B(index, type) ((index) * sizeof(type)) - -#define PCI32ADDR_HIGH 0xc0000000 /* address[31:30] */ -#define PCI32ADDR_HIGH_SHIFT 30 /* address[31:30] */ - -#define PCI64ADDR_HIGH 0x80000000 /* address[63] */ -#define PCI64ADDR_HIGH_SHIFT 31 /* address[63] */ - -/* Common prototypes */ -static bool _dma_isaddrext(dma_info_t *di); -static bool _dma_descriptor_align(dma_info_t *di); -static bool _dma_alloc(dma_info_t *di, uint direction); -static void _dma_detach(dma_info_t *di); -static void _dma_ddtable_init(dma_info_t *di, uint direction, dmaaddr_t pa); -static void _dma_rxinit(dma_info_t *di); -static void *_dma_rx(dma_info_t *di); -static bool _dma_rxfill(dma_info_t *di); -static void _dma_rxreclaim(dma_info_t *di); -static void _dma_rxenable(dma_info_t *di); -static void *_dma_getnextrxp(dma_info_t *di, bool forceall); -static void _dma_rx_param_get(dma_info_t *di, u16 *rxoffset, - u16 *rxbufsize); - -static void _dma_txblock(dma_info_t *di); -static void _dma_txunblock(dma_info_t *di); -static uint _dma_txactive(dma_info_t *di); -static uint _dma_rxactive(dma_info_t *di); -static uint _dma_txpending(dma_info_t *di); -static uint _dma_txcommitted(dma_info_t *di); - -static void *_dma_peeknexttxp(dma_info_t *di); -static void *_dma_peeknextrxp(dma_info_t *di); -static unsigned long _dma_getvar(dma_info_t *di, const char *name); -static void _dma_counterreset(dma_info_t *di); -static void _dma_fifoloopbackenable(dma_info_t *di); -static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags); -static u8 dma_align_sizetobits(uint size); -static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size, - u16 *alignbits, uint *alloced, - dmaaddr_t *descpa); - -/* Prototypes for 64-bit routines */ -static bool dma64_alloc(dma_info_t *di, uint direction); -static bool dma64_txreset(dma_info_t *di); -static bool dma64_rxreset(dma_info_t *di); -static bool dma64_txsuspendedidle(dma_info_t *di); -static int dma64_txfast(dma_info_t *di, struct sk_buff *p0, bool commit); -static int dma64_txunframed(dma_info_t *di, void *p0, uint len, bool commit); -static void *dma64_getpos(dma_info_t *di, bool direction); -static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range); -static void *dma64_getnextrxp(dma_info_t *di, bool forceall); -static void dma64_txrotate(dma_info_t *di); - -static bool dma64_rxidle(dma_info_t *di); -static void dma64_txinit(dma_info_t *di); -static bool dma64_txenabled(dma_info_t *di); -static void dma64_txsuspend(dma_info_t *di); -static void dma64_txresume(dma_info_t *di); -static bool dma64_txsuspended(dma_info_t *di); -static void dma64_txreclaim(dma_info_t *di, txd_range_t range); -static bool dma64_txstopped(dma_info_t *di); -static bool dma64_rxstopped(dma_info_t *di); -static bool dma64_rxenabled(dma_info_t *di); -static bool _dma64_addrext(dma64regs_t *dma64regs); - -static inline u32 parity32(u32 data); - -const di_fcn_t dma64proc = { - (di_detach_t) _dma_detach, - (di_txinit_t) dma64_txinit, - (di_txreset_t) dma64_txreset, - (di_txenabled_t) dma64_txenabled, - (di_txsuspend_t) dma64_txsuspend, - (di_txresume_t) dma64_txresume, - (di_txsuspended_t) dma64_txsuspended, - (di_txsuspendedidle_t) dma64_txsuspendedidle, - (di_txfast_t) dma64_txfast, - (di_txunframed_t) dma64_txunframed, - (di_getpos_t) dma64_getpos, - (di_txstopped_t) dma64_txstopped, - (di_txreclaim_t) dma64_txreclaim, - (di_getnexttxp_t) dma64_getnexttxp, - (di_peeknexttxp_t) _dma_peeknexttxp, - (di_txblock_t) _dma_txblock, - (di_txunblock_t) _dma_txunblock, - (di_txactive_t) _dma_txactive, - (di_txrotate_t) dma64_txrotate, - - (di_rxinit_t) _dma_rxinit, - (di_rxreset_t) dma64_rxreset, - (di_rxidle_t) dma64_rxidle, - (di_rxstopped_t) dma64_rxstopped, - (di_rxenable_t) _dma_rxenable, - (di_rxenabled_t) dma64_rxenabled, - (di_rx_t) _dma_rx, - (di_rxfill_t) _dma_rxfill, - (di_rxreclaim_t) _dma_rxreclaim, - (di_getnextrxp_t) _dma_getnextrxp, - (di_peeknextrxp_t) _dma_peeknextrxp, - (di_rxparam_get_t) _dma_rx_param_get, - - (di_fifoloopbackenable_t) _dma_fifoloopbackenable, - (di_getvar_t) _dma_getvar, - (di_counterreset_t) _dma_counterreset, - (di_ctrlflags_t) _dma_ctrlflags, - NULL, - NULL, - NULL, - (di_rxactive_t) _dma_rxactive, - (di_txpending_t) _dma_txpending, - (di_txcommitted_t) _dma_txcommitted, - 39 -}; - -struct hnddma_pub *dma_attach(char *name, si_t *sih, - void *dmaregstx, void *dmaregsrx, uint ntxd, - uint nrxd, uint rxbufsize, int rxextheadroom, - uint nrxpost, uint rxoffset, uint *msg_level) -{ - dma_info_t *di; - uint size; - - /* allocate private info structure */ - di = kzalloc(sizeof(dma_info_t), GFP_ATOMIC); - if (di == NULL) { -#ifdef BCMDBG - printk(KERN_ERR "dma_attach: out of memory\n"); -#endif - return NULL; - } - - di->msg_level = msg_level ? msg_level : &dma_msg_level; - - - di->dma64 = ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64); - - /* init dma reg pointer */ - di->d64txregs = (dma64regs_t *) dmaregstx; - di->d64rxregs = (dma64regs_t *) dmaregsrx; - di->hnddma.di_fn = (const di_fcn_t *)&dma64proc; - - /* Default flags (which can be changed by the driver calling dma_ctrlflags - * before enable): For backwards compatibility both Rx Overflow Continue - * and Parity are DISABLED. - * supports it. - */ - di->hnddma.di_fn->ctrlflags(&di->hnddma, DMA_CTRL_ROC | DMA_CTRL_PEN, - 0); - - DMA_TRACE(("%s: dma_attach: %s flags 0x%x ntxd %d nrxd %d " - "rxbufsize %d rxextheadroom %d nrxpost %d rxoffset %d " - "dmaregstx %p dmaregsrx %p\n", name, "DMA64", - di->hnddma.dmactrlflags, ntxd, nrxd, rxbufsize, - rxextheadroom, nrxpost, rxoffset, dmaregstx, dmaregsrx)); - - /* make a private copy of our callers name */ - strncpy(di->name, name, MAXNAMEL); - di->name[MAXNAMEL - 1] = '\0'; - - di->pbus = ((struct si_info *)sih)->pbus; - - /* save tunables */ - di->ntxd = (u16) ntxd; - di->nrxd = (u16) nrxd; - - /* the actual dma size doesn't include the extra headroom */ - di->rxextrahdrroom = - (rxextheadroom == -1) ? BCMEXTRAHDROOM : rxextheadroom; - if (rxbufsize > BCMEXTRAHDROOM) - di->rxbufsize = (u16) (rxbufsize - di->rxextrahdrroom); - else - di->rxbufsize = (u16) rxbufsize; - - di->nrxpost = (u16) nrxpost; - di->rxoffset = (u8) rxoffset; - - /* - * figure out the DMA physical address offset for dd and data - * PCI/PCIE: they map silicon backplace address to zero based memory, need offset - * Other bus: use zero - * SI_BUS BIGENDIAN kludge: use sdram swapped region for data buffer, not descriptor - */ - di->ddoffsetlow = 0; - di->dataoffsetlow = 0; - /* for pci bus, add offset */ - if (sih->bustype == PCI_BUS) { - /* pcie with DMA64 */ - di->ddoffsetlow = 0; - di->ddoffsethigh = SI_PCIE_DMA_H32; - di->dataoffsetlow = di->ddoffsetlow; - di->dataoffsethigh = di->ddoffsethigh; - } -#if defined(__mips__) && defined(IL_BIGENDIAN) - di->dataoffsetlow = di->dataoffsetlow + SI_SDRAM_SWAPPED; -#endif /* defined(__mips__) && defined(IL_BIGENDIAN) */ - /* WAR64450 : DMACtl.Addr ext fields are not supported in SDIOD core. */ - if ((ai_coreid(sih) == SDIOD_CORE_ID) - && ((ai_corerev(sih) > 0) && (ai_corerev(sih) <= 2))) - di->addrext = 0; - else if ((ai_coreid(sih) == I2S_CORE_ID) && - ((ai_corerev(sih) == 0) || (ai_corerev(sih) == 1))) - di->addrext = 0; - else - di->addrext = _dma_isaddrext(di); - - /* does the descriptors need to be aligned and if yes, on 4K/8K or not */ - di->aligndesc_4k = _dma_descriptor_align(di); - if (di->aligndesc_4k) { - di->dmadesc_align = D64RINGALIGN_BITS; - if ((ntxd < D64MAXDD / 2) && (nrxd < D64MAXDD / 2)) { - /* for smaller dd table, HW relax alignment reqmnt */ - di->dmadesc_align = D64RINGALIGN_BITS - 1; - } - } else - di->dmadesc_align = 4; /* 16 byte alignment */ - - DMA_NONE(("DMA descriptor align_needed %d, align %d\n", - di->aligndesc_4k, di->dmadesc_align)); - - /* allocate tx packet pointer vector */ - if (ntxd) { - size = ntxd * sizeof(void *); - di->txp = kzalloc(size, GFP_ATOMIC); - if (di->txp == NULL) { - DMA_ERROR(("%s: dma_attach: out of tx memory\n", di->name)); - goto fail; - } - } - - /* allocate rx packet pointer vector */ - if (nrxd) { - size = nrxd * sizeof(void *); - di->rxp = kzalloc(size, GFP_ATOMIC); - if (di->rxp == NULL) { - DMA_ERROR(("%s: dma_attach: out of rx memory\n", di->name)); - goto fail; - } - } - - /* allocate transmit descriptor ring, only need ntxd descriptors but it must be aligned */ - if (ntxd) { - if (!_dma_alloc(di, DMA_TX)) - goto fail; - } - - /* allocate receive descriptor ring, only need nrxd descriptors but it must be aligned */ - if (nrxd) { - if (!_dma_alloc(di, DMA_RX)) - goto fail; - } - - if ((di->ddoffsetlow != 0) && !di->addrext) { - if (PHYSADDRLO(di->txdpa) > SI_PCI_DMA_SZ) { - DMA_ERROR(("%s: dma_attach: txdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(di->txdpa))); - goto fail; - } - if (PHYSADDRLO(di->rxdpa) > SI_PCI_DMA_SZ) { - DMA_ERROR(("%s: dma_attach: rxdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(di->rxdpa))); - goto fail; - } - } - - DMA_TRACE(("ddoffsetlow 0x%x ddoffsethigh 0x%x dataoffsetlow 0x%x dataoffsethigh " "0x%x addrext %d\n", di->ddoffsetlow, di->ddoffsethigh, di->dataoffsetlow, di->dataoffsethigh, di->addrext)); - - /* allocate DMA mapping vectors */ - if (DMASGLIST_ENAB) { - if (ntxd) { - size = ntxd * sizeof(hnddma_seg_map_t); - di->txp_dmah = kzalloc(size, GFP_ATOMIC); - if (di->txp_dmah == NULL) - goto fail; - } - - if (nrxd) { - size = nrxd * sizeof(hnddma_seg_map_t); - di->rxp_dmah = kzalloc(size, GFP_ATOMIC); - if (di->rxp_dmah == NULL) - goto fail; - } - } - - return (struct hnddma_pub *) di; - - fail: - _dma_detach(di); - return NULL; -} - -/* Check for odd number of 1's */ -static inline u32 parity32(u32 data) -{ - data ^= data >> 16; - data ^= data >> 8; - data ^= data >> 4; - data ^= data >> 2; - data ^= data >> 1; - - return data & 1; -} - -#define DMA64_DD_PARITY(dd) parity32((dd)->addrlow ^ (dd)->addrhigh ^ (dd)->ctrl1 ^ (dd)->ctrl2) - -static inline void -dma64_dd_upd(dma_info_t *di, dma64dd_t *ddring, dmaaddr_t pa, uint outidx, - u32 *flags, u32 bufcount) -{ - u32 ctrl2 = bufcount & D64_CTRL2_BC_MASK; - - /* PCI bus with big(>1G) physical address, use address extension */ -#if defined(__mips__) && defined(IL_BIGENDIAN) - if ((di->dataoffsetlow == SI_SDRAM_SWAPPED) - || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { -#else - if ((di->dataoffsetlow == 0) || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { -#endif /* defined(__mips__) && defined(IL_BIGENDIAN) */ - - W_SM(&ddring[outidx].addrlow, - BUS_SWAP32(PHYSADDRLO(pa) + di->dataoffsetlow)); - W_SM(&ddring[outidx].addrhigh, - BUS_SWAP32(PHYSADDRHI(pa) + di->dataoffsethigh)); - W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags)); - W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2)); - } else { - /* address extension for 32-bit PCI */ - u32 ae; - - ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT; - PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH; - - ctrl2 |= (ae << D64_CTRL2_AE_SHIFT) & D64_CTRL2_AE; - W_SM(&ddring[outidx].addrlow, - BUS_SWAP32(PHYSADDRLO(pa) + di->dataoffsetlow)); - W_SM(&ddring[outidx].addrhigh, - BUS_SWAP32(0 + di->dataoffsethigh)); - W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags)); - W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2)); - } - if (di->hnddma.dmactrlflags & DMA_CTRL_PEN) { - if (DMA64_DD_PARITY(&ddring[outidx])) { - W_SM(&ddring[outidx].ctrl2, - BUS_SWAP32(ctrl2 | D64_CTRL2_PARITY)); - } - } -} - -static bool _dma_alloc(dma_info_t *di, uint direction) -{ - return dma64_alloc(di, direction); -} - -void *dma_alloc_consistent(struct pci_dev *pdev, uint size, u16 align_bits, - uint *alloced, unsigned long *pap) -{ - if (align_bits) { - u16 align = (1 << align_bits); - if (!IS_ALIGNED(PAGE_SIZE, align)) - size += align; - *alloced = size; - } - return pci_alloc_consistent(pdev, size, (dma_addr_t *) pap); -} - -/* !! may be called with core in reset */ -static void _dma_detach(dma_info_t *di) -{ - - DMA_TRACE(("%s: dma_detach\n", di->name)); - - /* free dma descriptor rings */ - if (di->txd64) - pci_free_consistent(di->pbus, di->txdalloc, - ((s8 *)di->txd64 - di->txdalign), - (di->txdpaorig)); - if (di->rxd64) - pci_free_consistent(di->pbus, di->rxdalloc, - ((s8 *)di->rxd64 - di->rxdalign), - (di->rxdpaorig)); - - /* free packet pointer vectors */ - kfree(di->txp); - kfree(di->rxp); - - /* free tx packet DMA handles */ - kfree(di->txp_dmah); - - /* free rx packet DMA handles */ - kfree(di->rxp_dmah); - - /* free our private info structure */ - kfree(di); - -} - -static bool _dma_descriptor_align(dma_info_t *di) -{ - u32 addrl; - - /* Check to see if the descriptors need to be aligned on 4K/8K or not */ - if (di->d64txregs != NULL) { - W_REG(&di->d64txregs->addrlow, 0xff0); - addrl = R_REG(&di->d64txregs->addrlow); - if (addrl != 0) - return false; - } else if (di->d64rxregs != NULL) { - W_REG(&di->d64rxregs->addrlow, 0xff0); - addrl = R_REG(&di->d64rxregs->addrlow); - if (addrl != 0) - return false; - } - return true; -} - -/* return true if this dma engine supports DmaExtendedAddrChanges, otherwise false */ -static bool _dma_isaddrext(dma_info_t *di) -{ - /* DMA64 supports full 32- or 64-bit operation. AE is always valid */ - - /* not all tx or rx channel are available */ - if (di->d64txregs != NULL) { - if (!_dma64_addrext(di->d64txregs)) { - DMA_ERROR(("%s: _dma_isaddrext: DMA64 tx doesn't have " - "AE set\n", di->name)); - } - return true; - } else if (di->d64rxregs != NULL) { - if (!_dma64_addrext(di->d64rxregs)) { - DMA_ERROR(("%s: _dma_isaddrext: DMA64 rx doesn't have " - "AE set\n", di->name)); - } - return true; - } - return false; -} - -/* initialize descriptor table base address */ -static void _dma_ddtable_init(dma_info_t *di, uint direction, dmaaddr_t pa) -{ - if (!di->aligndesc_4k) { - if (direction == DMA_TX) - di->xmtptrbase = PHYSADDRLO(pa); - else - di->rcvptrbase = PHYSADDRLO(pa); - } - - if ((di->ddoffsetlow == 0) - || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) { - if (direction == DMA_TX) { - W_REG(&di->d64txregs->addrlow, - (PHYSADDRLO(pa) + di->ddoffsetlow)); - W_REG(&di->d64txregs->addrhigh, - (PHYSADDRHI(pa) + di->ddoffsethigh)); - } else { - W_REG(&di->d64rxregs->addrlow, - (PHYSADDRLO(pa) + di->ddoffsetlow)); - W_REG(&di->d64rxregs->addrhigh, - (PHYSADDRHI(pa) + di->ddoffsethigh)); - } - } else { - /* DMA64 32bits address extension */ - u32 ae; - - /* shift the high bit(s) from pa to ae */ - ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >> - PCI32ADDR_HIGH_SHIFT; - PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH; - - if (direction == DMA_TX) { - W_REG(&di->d64txregs->addrlow, - (PHYSADDRLO(pa) + di->ddoffsetlow)); - W_REG(&di->d64txregs->addrhigh, - di->ddoffsethigh); - SET_REG(&di->d64txregs->control, - D64_XC_AE, (ae << D64_XC_AE_SHIFT)); - } else { - W_REG(&di->d64rxregs->addrlow, - (PHYSADDRLO(pa) + di->ddoffsetlow)); - W_REG(&di->d64rxregs->addrhigh, - di->ddoffsethigh); - SET_REG(&di->d64rxregs->control, - D64_RC_AE, (ae << D64_RC_AE_SHIFT)); - } - } -} - -static void _dma_fifoloopbackenable(dma_info_t *di) -{ - DMA_TRACE(("%s: dma_fifoloopbackenable\n", di->name)); - - OR_REG(&di->d64txregs->control, D64_XC_LE); -} - -static void _dma_rxinit(dma_info_t *di) -{ - DMA_TRACE(("%s: dma_rxinit\n", di->name)); - - if (di->nrxd == 0) - return; - - di->rxin = di->rxout = 0; - - /* clear rx descriptor ring */ - memset((void *)di->rxd64, '\0', - (di->nrxd * sizeof(dma64dd_t))); - - /* DMA engine with out alignment requirement requires table to be inited - * before enabling the engine - */ - if (!di->aligndesc_4k) - _dma_ddtable_init(di, DMA_RX, di->rxdpa); - - _dma_rxenable(di); - - if (di->aligndesc_4k) - _dma_ddtable_init(di, DMA_RX, di->rxdpa); -} - -static void _dma_rxenable(dma_info_t *di) -{ - uint dmactrlflags = di->hnddma.dmactrlflags; - u32 control; - - DMA_TRACE(("%s: dma_rxenable\n", di->name)); - - control = - (R_REG(&di->d64rxregs->control) & D64_RC_AE) | - D64_RC_RE; - - if ((dmactrlflags & DMA_CTRL_PEN) == 0) - control |= D64_RC_PD; - - if (dmactrlflags & DMA_CTRL_ROC) - control |= D64_RC_OC; - - W_REG(&di->d64rxregs->control, - ((di->rxoffset << D64_RC_RO_SHIFT) | control)); -} - -static void -_dma_rx_param_get(dma_info_t *di, u16 *rxoffset, u16 *rxbufsize) -{ - /* the normal values fit into 16 bits */ - *rxoffset = (u16) di->rxoffset; - *rxbufsize = (u16) di->rxbufsize; -} - -/* !! rx entry routine - * returns a pointer to the next frame received, or NULL if there are no more - * if DMA_CTRL_RXMULTI is defined, DMA scattering(multiple buffers) is supported - * with pkts chain - * otherwise, it's treated as giant pkt and will be tossed. - * The DMA scattering starts with normal DMA header, followed by first buffer data. - * After it reaches the max size of buffer, the data continues in next DMA descriptor - * buffer WITHOUT DMA header - */ -static void *_dma_rx(dma_info_t *di) -{ - struct sk_buff *p, *head, *tail; - uint len; - uint pkt_len; - int resid = 0; - - next_frame: - head = _dma_getnextrxp(di, false); - if (head == NULL) - return NULL; - - len = le16_to_cpu(*(u16 *) (head->data)); - DMA_TRACE(("%s: dma_rx len %d\n", di->name, len)); - dma_spin_for_len(len, head); - - /* set actual length */ - pkt_len = min((di->rxoffset + len), di->rxbufsize); - __skb_trim(head, pkt_len); - resid = len - (di->rxbufsize - di->rxoffset); - - /* check for single or multi-buffer rx */ - if (resid > 0) { - tail = head; - while ((resid > 0) && (p = _dma_getnextrxp(di, false))) { - tail->next = p; - pkt_len = min(resid, (int)di->rxbufsize); - __skb_trim(p, pkt_len); - - tail = p; - resid -= di->rxbufsize; - } - -#ifdef BCMDBG - if (resid > 0) { - uint cur; - cur = - B2I(((R_REG(&di->d64rxregs->status0) & - D64_RS0_CD_MASK) - - di->rcvptrbase) & D64_RS0_CD_MASK, - dma64dd_t); - DMA_ERROR(("_dma_rx, rxin %d rxout %d, hw_curr %d\n", - di->rxin, di->rxout, cur)); - } -#endif /* BCMDBG */ - - if ((di->hnddma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) { - DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n", - di->name, len)); - bcm_pkt_buf_free_skb(head); - di->hnddma.rxgiants++; - goto next_frame; - } - } - - return head; -} - -/* post receive buffers - * return false is refill failed completely and ring is empty - * this will stall the rx dma and user might want to call rxfill again asap - * This unlikely happens on memory-rich NIC, but often on memory-constrained dongle - */ -static bool _dma_rxfill(dma_info_t *di) -{ - struct sk_buff *p; - u16 rxin, rxout; - u32 flags = 0; - uint n; - uint i; - dmaaddr_t pa; - uint extra_offset = 0; - bool ring_empty; - - ring_empty = false; - - /* - * Determine how many receive buffers we're lacking - * from the full complement, allocate, initialize, - * and post them, then update the chip rx lastdscr. - */ - - rxin = di->rxin; - rxout = di->rxout; - - n = di->nrxpost - NRXDACTIVE(rxin, rxout); - - DMA_TRACE(("%s: dma_rxfill: post %d\n", di->name, n)); - - if (di->rxbufsize > BCMEXTRAHDROOM) - extra_offset = di->rxextrahdrroom; - - for (i = 0; i < n; i++) { - /* the di->rxbufsize doesn't include the extra headroom, we need to add it to the - size to be allocated - */ - - p = bcm_pkt_buf_get_skb(di->rxbufsize + extra_offset); - - if (p == NULL) { - DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n", - di->name)); - if (i == 0 && dma64_rxidle(di)) { - DMA_ERROR(("%s: rxfill64: ring is empty !\n", - di->name)); - ring_empty = true; - } - di->hnddma.rxnobuf++; - break; - } - /* reserve an extra headroom, if applicable */ - if (extra_offset) - skb_pull(p, extra_offset); - - /* Do a cached write instead of uncached write since DMA_MAP - * will flush the cache. - */ - *(u32 *) (p->data) = 0; - - if (DMASGLIST_ENAB) - memset(&di->rxp_dmah[rxout], 0, - sizeof(hnddma_seg_map_t)); - - pa = pci_map_single(di->pbus, p->data, - di->rxbufsize, PCI_DMA_FROMDEVICE); - - /* save the free packet pointer */ - di->rxp[rxout] = p; - - /* reset flags for each descriptor */ - flags = 0; - if (rxout == (di->nrxd - 1)) - flags = D64_CTRL1_EOT; - - dma64_dd_upd(di, di->rxd64, pa, rxout, &flags, - di->rxbufsize); - rxout = NEXTRXD(rxout); - } - - di->rxout = rxout; - - /* update the chip lastdscr pointer */ - W_REG(&di->d64rxregs->ptr, - di->rcvptrbase + I2B(rxout, dma64dd_t)); - - return ring_empty; -} - -/* like getnexttxp but no reclaim */ -static void *_dma_peeknexttxp(dma_info_t *di) -{ - uint end, i; - - if (di->ntxd == 0) - return NULL; - - end = - B2I(((R_REG(&di->d64txregs->status0) & - D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK, - dma64dd_t); - - for (i = di->txin; i != end; i = NEXTTXD(i)) - if (di->txp[i]) - return di->txp[i]; - - return NULL; -} - -/* like getnextrxp but not take off the ring */ -static void *_dma_peeknextrxp(dma_info_t *di) -{ - uint end, i; - - if (di->nrxd == 0) - return NULL; - - end = - B2I(((R_REG(&di->d64rxregs->status0) & - D64_RS0_CD_MASK) - di->rcvptrbase) & D64_RS0_CD_MASK, - dma64dd_t); - - for (i = di->rxin; i != end; i = NEXTRXD(i)) - if (di->rxp[i]) - return di->rxp[i]; - - return NULL; -} - -static void _dma_rxreclaim(dma_info_t *di) -{ - void *p; - - DMA_TRACE(("%s: dma_rxreclaim\n", di->name)); - - while ((p = _dma_getnextrxp(di, true))) - bcm_pkt_buf_free_skb(p); -} - -static void *_dma_getnextrxp(dma_info_t *di, bool forceall) -{ - if (di->nrxd == 0) - return NULL; - - return dma64_getnextrxp(di, forceall); -} - -static void _dma_txblock(dma_info_t *di) -{ - di->hnddma.txavail = 0; -} - -static void _dma_txunblock(dma_info_t *di) -{ - di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; -} - -static uint _dma_txactive(dma_info_t *di) -{ - return NTXDACTIVE(di->txin, di->txout); -} - -static uint _dma_txpending(dma_info_t *di) -{ - uint curr; - - curr = - B2I(((R_REG(&di->d64txregs->status0) & - D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK, - dma64dd_t); - - return NTXDACTIVE(curr, di->txout); -} - -static uint _dma_txcommitted(dma_info_t *di) -{ - uint ptr; - uint txin = di->txin; - - if (txin == di->txout) - return 0; - - ptr = B2I(R_REG(&di->d64txregs->ptr), dma64dd_t); - - return NTXDACTIVE(di->txin, ptr); -} - -static uint _dma_rxactive(dma_info_t *di) -{ - return NRXDACTIVE(di->rxin, di->rxout); -} - -static void _dma_counterreset(dma_info_t *di) -{ - /* reset all software counter */ - di->hnddma.rxgiants = 0; - di->hnddma.rxnobuf = 0; - di->hnddma.txnobuf = 0; -} - -static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags) -{ - uint dmactrlflags = di->hnddma.dmactrlflags; - - if (di == NULL) { - DMA_ERROR(("%s: _dma_ctrlflags: NULL dma handle\n", di->name)); - return 0; - } - - dmactrlflags &= ~mask; - dmactrlflags |= flags; - - /* If trying to enable parity, check if parity is actually supported */ - if (dmactrlflags & DMA_CTRL_PEN) { - u32 control; - - control = R_REG(&di->d64txregs->control); - W_REG(&di->d64txregs->control, - control | D64_XC_PD); - if (R_REG(&di->d64txregs->control) & D64_XC_PD) { - /* We *can* disable it so it is supported, - * restore control register - */ - W_REG(&di->d64txregs->control, - control); - } else { - /* Not supported, don't allow it to be enabled */ - dmactrlflags &= ~DMA_CTRL_PEN; - } - } - - di->hnddma.dmactrlflags = dmactrlflags; - - return dmactrlflags; -} - -/* get the address of the var in order to change later */ -static unsigned long _dma_getvar(dma_info_t *di, const char *name) -{ - if (!strcmp(name, "&txavail")) - return (unsigned long)&(di->hnddma.txavail); - return 0; -} - -static -u8 dma_align_sizetobits(uint size) -{ - u8 bitpos = 0; - while (size >>= 1) { - bitpos++; - } - return bitpos; -} - -/* This function ensures that the DMA descriptor ring will not get allocated - * across Page boundary. If the allocation is done across the page boundary - * at the first time, then it is freed and the allocation is done at - * descriptor ring size aligned location. This will ensure that the ring will - * not cross page boundary - */ -static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size, - u16 *alignbits, uint *alloced, - dmaaddr_t *descpa) -{ - void *va; - u32 desc_strtaddr; - u32 alignbytes = 1 << *alignbits; - - va = dma_alloc_consistent(di->pbus, size, *alignbits, alloced, descpa); - - if (NULL == va) - return NULL; - - desc_strtaddr = (u32) roundup((unsigned long)va, alignbytes); - if (((desc_strtaddr + size - 1) & boundary) != (desc_strtaddr - & boundary)) { - *alignbits = dma_align_sizetobits(size); - pci_free_consistent(di->pbus, size, va, *descpa); - va = dma_alloc_consistent(di->pbus, size, *alignbits, - alloced, descpa); - } - return va; -} - -/* 64-bit DMA functions */ - -static void dma64_txinit(dma_info_t *di) -{ - u32 control = D64_XC_XE; - - DMA_TRACE(("%s: dma_txinit\n", di->name)); - - if (di->ntxd == 0) - return; - - di->txin = di->txout = 0; - di->hnddma.txavail = di->ntxd - 1; - - /* clear tx descriptor ring */ - memset((void *)di->txd64, '\0', (di->ntxd * sizeof(dma64dd_t))); - - /* DMA engine with out alignment requirement requires table to be inited - * before enabling the engine - */ - if (!di->aligndesc_4k) - _dma_ddtable_init(di, DMA_TX, di->txdpa); - - if ((di->hnddma.dmactrlflags & DMA_CTRL_PEN) == 0) - control |= D64_XC_PD; - OR_REG(&di->d64txregs->control, control); - - /* DMA engine with alignment requirement requires table to be inited - * before enabling the engine - */ - if (di->aligndesc_4k) - _dma_ddtable_init(di, DMA_TX, di->txdpa); -} - -static bool dma64_txenabled(dma_info_t *di) -{ - u32 xc; - - /* If the chip is dead, it is not enabled :-) */ - xc = R_REG(&di->d64txregs->control); - return (xc != 0xffffffff) && (xc & D64_XC_XE); -} - -static void dma64_txsuspend(dma_info_t *di) -{ - DMA_TRACE(("%s: dma_txsuspend\n", di->name)); - - if (di->ntxd == 0) - return; - - OR_REG(&di->d64txregs->control, D64_XC_SE); -} - -static void dma64_txresume(dma_info_t *di) -{ - DMA_TRACE(("%s: dma_txresume\n", di->name)); - - if (di->ntxd == 0) - return; - - AND_REG(&di->d64txregs->control, ~D64_XC_SE); -} - -static bool dma64_txsuspended(dma_info_t *di) -{ - return (di->ntxd == 0) || - ((R_REG(&di->d64txregs->control) & D64_XC_SE) == - D64_XC_SE); -} - -static void dma64_txreclaim(dma_info_t *di, txd_range_t range) -{ - void *p; - - DMA_TRACE(("%s: dma_txreclaim %s\n", di->name, - (range == HNDDMA_RANGE_ALL) ? "all" : - ((range == - HNDDMA_RANGE_TRANSMITTED) ? "transmitted" : - "transferred"))); - - if (di->txin == di->txout) - return; - - while ((p = dma64_getnexttxp(di, range))) { - /* For unframed data, we don't have any packets to free */ - if (!(di->hnddma.dmactrlflags & DMA_CTRL_UNFRAMED)) - bcm_pkt_buf_free_skb(p); - } -} - -static bool dma64_txstopped(dma_info_t *di) -{ - return ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) == - D64_XS0_XS_STOPPED); -} - -static bool dma64_rxstopped(dma_info_t *di) -{ - return ((R_REG(&di->d64rxregs->status0) & D64_RS0_RS_MASK) == - D64_RS0_RS_STOPPED); -} - -static bool dma64_alloc(dma_info_t *di, uint direction) -{ - u16 size; - uint ddlen; - void *va; - uint alloced = 0; - u16 align; - u16 align_bits; - - ddlen = sizeof(dma64dd_t); - - size = (direction == DMA_TX) ? (di->ntxd * ddlen) : (di->nrxd * ddlen); - align_bits = di->dmadesc_align; - align = (1 << align_bits); - - if (direction == DMA_TX) { - va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, - &alloced, &di->txdpaorig); - if (va == NULL) { - DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(ntxd) failed\n", di->name)); - return false; - } - align = (1 << align_bits); - di->txd64 = (dma64dd_t *) roundup((unsigned long)va, align); - di->txdalign = (uint) ((s8 *)di->txd64 - (s8 *) va); - PHYSADDRLOSET(di->txdpa, - PHYSADDRLO(di->txdpaorig) + di->txdalign); - PHYSADDRHISET(di->txdpa, PHYSADDRHI(di->txdpaorig)); - di->txdalloc = alloced; - } else { - va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits, - &alloced, &di->rxdpaorig); - if (va == NULL) { - DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(nrxd) failed\n", di->name)); - return false; - } - align = (1 << align_bits); - di->rxd64 = (dma64dd_t *) roundup((unsigned long)va, align); - di->rxdalign = (uint) ((s8 *)di->rxd64 - (s8 *) va); - PHYSADDRLOSET(di->rxdpa, - PHYSADDRLO(di->rxdpaorig) + di->rxdalign); - PHYSADDRHISET(di->rxdpa, PHYSADDRHI(di->rxdpaorig)); - di->rxdalloc = alloced; - } - - return true; -} - -static bool dma64_txreset(dma_info_t *di) -{ - u32 status; - - if (di->ntxd == 0) - return true; - - /* suspend tx DMA first */ - W_REG(&di->d64txregs->control, D64_XC_SE); - SPINWAIT(((status = - (R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK)) - != D64_XS0_XS_DISABLED) && (status != D64_XS0_XS_IDLE) - && (status != D64_XS0_XS_STOPPED), 10000); - - W_REG(&di->d64txregs->control, 0); - SPINWAIT(((status = - (R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK)) - != D64_XS0_XS_DISABLED), 10000); - - /* wait for the last transaction to complete */ - udelay(300); - - return status == D64_XS0_XS_DISABLED; -} - -static bool dma64_rxidle(dma_info_t *di) -{ - DMA_TRACE(("%s: dma_rxidle\n", di->name)); - - if (di->nrxd == 0) - return true; - - return ((R_REG(&di->d64rxregs->status0) & D64_RS0_CD_MASK) == - (R_REG(&di->d64rxregs->ptr) & D64_RS0_CD_MASK)); -} - -static bool dma64_rxreset(dma_info_t *di) -{ - u32 status; - - if (di->nrxd == 0) - return true; - - W_REG(&di->d64rxregs->control, 0); - SPINWAIT(((status = - (R_REG(&di->d64rxregs->status0) & D64_RS0_RS_MASK)) - != D64_RS0_RS_DISABLED), 10000); - - return status == D64_RS0_RS_DISABLED; -} - -static bool dma64_rxenabled(dma_info_t *di) -{ - u32 rc; - - rc = R_REG(&di->d64rxregs->control); - return (rc != 0xffffffff) && (rc & D64_RC_RE); -} - -static bool dma64_txsuspendedidle(dma_info_t *di) -{ - - if (di->ntxd == 0) - return true; - - if (!(R_REG(&di->d64txregs->control) & D64_XC_SE)) - return 0; - - if ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) == - D64_XS0_XS_IDLE) - return 1; - - return 0; -} - -/* Useful when sending unframed data. This allows us to get a progress report from the DMA. - * We return a pointer to the beginning of the DATA buffer of the current descriptor. - * If DMA is idle, we return NULL. - */ -static void *dma64_getpos(dma_info_t *di, bool direction) -{ - void *va; - bool idle; - u32 cd_offset; - - if (direction == DMA_TX) { - cd_offset = - R_REG(&di->d64txregs->status0) & D64_XS0_CD_MASK; - idle = !NTXDACTIVE(di->txin, di->txout); - va = di->txp[B2I(cd_offset, dma64dd_t)]; - } else { - cd_offset = - R_REG(&di->d64rxregs->status0) & D64_XS0_CD_MASK; - idle = !NRXDACTIVE(di->rxin, di->rxout); - va = di->rxp[B2I(cd_offset, dma64dd_t)]; - } - - /* If DMA is IDLE, return NULL */ - if (idle) { - DMA_TRACE(("%s: DMA idle, return NULL\n", __func__)); - va = NULL; - } - - return va; -} - -/* TX of unframed data - * - * Adds a DMA ring descriptor for the data pointed to by "buf". - * This is for DMA of a buffer of data and is unlike other hnddma TX functions - * that take a pointer to a "packet" - * Each call to this is results in a single descriptor being added for "len" bytes of - * data starting at "buf", it doesn't handle chained buffers. - */ -static int dma64_txunframed(dma_info_t *di, void *buf, uint len, bool commit) -{ - u16 txout; - u32 flags = 0; - dmaaddr_t pa; /* phys addr */ - - txout = di->txout; - - /* return nonzero if out of tx descriptors */ - if (NEXTTXD(txout) == di->txin) - goto outoftxd; - - if (len == 0) - return 0; - - pa = pci_map_single(di->pbus, buf, len, PCI_DMA_TODEVICE); - - flags = (D64_CTRL1_SOF | D64_CTRL1_IOC | D64_CTRL1_EOF); - - if (txout == (di->ntxd - 1)) - flags |= D64_CTRL1_EOT; - - dma64_dd_upd(di, di->txd64, pa, txout, &flags, len); - - /* save the buffer pointer - used by dma_getpos */ - di->txp[txout] = buf; - - txout = NEXTTXD(txout); - /* bump the tx descriptor index */ - di->txout = txout; - - /* kick the chip */ - if (commit) { - W_REG(&di->d64txregs->ptr, - di->xmtptrbase + I2B(txout, dma64dd_t)); - } - - /* tx flow control */ - di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; - - return 0; - - outoftxd: - DMA_ERROR(("%s: %s: out of txds !!!\n", di->name, __func__)); - di->hnddma.txavail = 0; - di->hnddma.txnobuf++; - return -1; -} - -/* !! tx entry routine - * WARNING: call must check the return value for error. - * the error(toss frames) could be fatal and cause many subsequent hard to debug problems - */ -static int dma64_txfast(dma_info_t *di, struct sk_buff *p0, - bool commit) -{ - struct sk_buff *p, *next; - unsigned char *data; - uint len; - u16 txout; - u32 flags = 0; - dmaaddr_t pa; - - DMA_TRACE(("%s: dma_txfast\n", di->name)); - - txout = di->txout; - - /* - * Walk the chain of packet buffers - * allocating and initializing transmit descriptor entries. - */ - for (p = p0; p; p = next) { - uint nsegs, j; - hnddma_seg_map_t *map; - - data = p->data; - len = p->len; - next = p->next; - - /* return nonzero if out of tx descriptors */ - if (NEXTTXD(txout) == di->txin) - goto outoftxd; - - if (len == 0) - continue; - - /* get physical address of buffer start */ - if (DMASGLIST_ENAB) - memset(&di->txp_dmah[txout], 0, - sizeof(hnddma_seg_map_t)); - - pa = pci_map_single(di->pbus, data, len, PCI_DMA_TODEVICE); - - if (DMASGLIST_ENAB) { - map = &di->txp_dmah[txout]; - - /* See if all the segments can be accounted for */ - if (map->nsegs > - (uint) (di->ntxd - NTXDACTIVE(di->txin, di->txout) - - 1)) - goto outoftxd; - - nsegs = map->nsegs; - } else - nsegs = 1; - - for (j = 1; j <= nsegs; j++) { - flags = 0; - if (p == p0 && j == 1) - flags |= D64_CTRL1_SOF; - - /* With a DMA segment list, Descriptor table is filled - * using the segment list instead of looping over - * buffers in multi-chain DMA. Therefore, EOF for SGLIST is when - * end of segment list is reached. - */ - if ((!DMASGLIST_ENAB && next == NULL) || - (DMASGLIST_ENAB && j == nsegs)) - flags |= (D64_CTRL1_IOC | D64_CTRL1_EOF); - if (txout == (di->ntxd - 1)) - flags |= D64_CTRL1_EOT; - - if (DMASGLIST_ENAB) { - len = map->segs[j - 1].length; - pa = map->segs[j - 1].addr; - } - dma64_dd_upd(di, di->txd64, pa, txout, &flags, len); - - txout = NEXTTXD(txout); - } - - /* See above. No need to loop over individual buffers */ - if (DMASGLIST_ENAB) - break; - } - - /* if last txd eof not set, fix it */ - if (!(flags & D64_CTRL1_EOF)) - W_SM(&di->txd64[PREVTXD(txout)].ctrl1, - BUS_SWAP32(flags | D64_CTRL1_IOC | D64_CTRL1_EOF)); - - /* save the packet */ - di->txp[PREVTXD(txout)] = p0; - - /* bump the tx descriptor index */ - di->txout = txout; - - /* kick the chip */ - if (commit) - W_REG(&di->d64txregs->ptr, - di->xmtptrbase + I2B(txout, dma64dd_t)); - - /* tx flow control */ - di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; - - return 0; - - outoftxd: - DMA_ERROR(("%s: dma_txfast: out of txds !!!\n", di->name)); - bcm_pkt_buf_free_skb(p0); - di->hnddma.txavail = 0; - di->hnddma.txnobuf++; - return -1; -} - -/* - * Reclaim next completed txd (txds if using chained buffers) in the range - * specified and return associated packet. - * If range is HNDDMA_RANGE_TRANSMITTED, reclaim descriptors that have be - * transmitted as noted by the hardware "CurrDescr" pointer. - * If range is HNDDMA_RANGE_TRANSFERED, reclaim descriptors that have be - * transferred by the DMA as noted by the hardware "ActiveDescr" pointer. - * If range is HNDDMA_RANGE_ALL, reclaim all txd(s) posted to the ring and - * return associated packet regardless of the value of hardware pointers. - */ -static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range) -{ - u16 start, end, i; - u16 active_desc; - void *txp; - - DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name, - (range == HNDDMA_RANGE_ALL) ? "all" : - ((range == - HNDDMA_RANGE_TRANSMITTED) ? "transmitted" : - "transferred"))); - - if (di->ntxd == 0) - return NULL; - - txp = NULL; - - start = di->txin; - if (range == HNDDMA_RANGE_ALL) - end = di->txout; - else { - dma64regs_t *dregs = di->d64txregs; - - end = - (u16) (B2I - (((R_REG(&dregs->status0) & - D64_XS0_CD_MASK) - - di->xmtptrbase) & D64_XS0_CD_MASK, dma64dd_t)); - - if (range == HNDDMA_RANGE_TRANSFERED) { - active_desc = - (u16) (R_REG(&dregs->status1) & - D64_XS1_AD_MASK); - active_desc = - (active_desc - di->xmtptrbase) & D64_XS0_CD_MASK; - active_desc = B2I(active_desc, dma64dd_t); - if (end != active_desc) - end = PREVTXD(active_desc); - } - } - - if ((start == 0) && (end > di->txout)) - goto bogus; - - for (i = start; i != end && !txp; i = NEXTTXD(i)) { - dmaaddr_t pa; - hnddma_seg_map_t *map = NULL; - uint size, j, nsegs; - - PHYSADDRLOSET(pa, - (BUS_SWAP32(R_SM(&di->txd64[i].addrlow)) - - di->dataoffsetlow)); - PHYSADDRHISET(pa, - (BUS_SWAP32(R_SM(&di->txd64[i].addrhigh)) - - di->dataoffsethigh)); - - if (DMASGLIST_ENAB) { - map = &di->txp_dmah[i]; - size = map->origsize; - nsegs = map->nsegs; - } else { - size = - (BUS_SWAP32(R_SM(&di->txd64[i].ctrl2)) & - D64_CTRL2_BC_MASK); - nsegs = 1; - } - - for (j = nsegs; j > 0; j--) { - W_SM(&di->txd64[i].addrlow, 0xdeadbeef); - W_SM(&di->txd64[i].addrhigh, 0xdeadbeef); - - txp = di->txp[i]; - di->txp[i] = NULL; - if (j > 1) - i = NEXTTXD(i); - } - - pci_unmap_single(di->pbus, pa, size, PCI_DMA_TODEVICE); - } - - di->txin = i; - - /* tx flow control */ - di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; - - return txp; - - bogus: - DMA_NONE(("dma_getnexttxp: bogus curr: start %d end %d txout %d force %d\n", start, end, di->txout, forceall)); - return NULL; -} - -static void *dma64_getnextrxp(dma_info_t *di, bool forceall) -{ - uint i, curr; - void *rxp; - dmaaddr_t pa; - - i = di->rxin; - - /* return if no packets posted */ - if (i == di->rxout) - return NULL; - - curr = - B2I(((R_REG(&di->d64rxregs->status0) & D64_RS0_CD_MASK) - - di->rcvptrbase) & D64_RS0_CD_MASK, dma64dd_t); - - /* ignore curr if forceall */ - if (!forceall && (i == curr)) - return NULL; - - /* get the packet pointer that corresponds to the rx descriptor */ - rxp = di->rxp[i]; - di->rxp[i] = NULL; - - PHYSADDRLOSET(pa, - (BUS_SWAP32(R_SM(&di->rxd64[i].addrlow)) - - di->dataoffsetlow)); - PHYSADDRHISET(pa, - (BUS_SWAP32(R_SM(&di->rxd64[i].addrhigh)) - - di->dataoffsethigh)); - - /* clear this packet from the descriptor ring */ - pci_unmap_single(di->pbus, pa, di->rxbufsize, PCI_DMA_FROMDEVICE); - - W_SM(&di->rxd64[i].addrlow, 0xdeadbeef); - W_SM(&di->rxd64[i].addrhigh, 0xdeadbeef); - - di->rxin = NEXTRXD(i); - - return rxp; -} - -static bool _dma64_addrext(dma64regs_t *dma64regs) -{ - u32 w; - OR_REG(&dma64regs->control, D64_XC_AE); - w = R_REG(&dma64regs->control); - AND_REG(&dma64regs->control, ~D64_XC_AE); - return (w & D64_XC_AE) == D64_XC_AE; -} - -/* - * Rotate all active tx dma ring entries "forward" by (ActiveDescriptor - txin). - */ -static void dma64_txrotate(dma_info_t *di) -{ - u16 ad; - uint nactive; - uint rot; - u16 old, new; - u32 w; - u16 first, last; - - nactive = _dma_txactive(di); - ad = (u16) (B2I - ((((R_REG(&di->d64txregs->status1) & - D64_XS1_AD_MASK) - - di->xmtptrbase) & D64_XS1_AD_MASK), dma64dd_t)); - rot = TXD(ad - di->txin); - - /* full-ring case is a lot harder - don't worry about this */ - if (rot >= (di->ntxd - nactive)) { - DMA_ERROR(("%s: dma_txrotate: ring full - punt\n", di->name)); - return; - } - - first = di->txin; - last = PREVTXD(di->txout); - - /* move entries starting at last and moving backwards to first */ - for (old = last; old != PREVTXD(first); old = PREVTXD(old)) { - new = TXD(old + rot); - - /* - * Move the tx dma descriptor. - * EOT is set only in the last entry in the ring. - */ - w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl1)) & ~D64_CTRL1_EOT; - if (new == (di->ntxd - 1)) - w |= D64_CTRL1_EOT; - W_SM(&di->txd64[new].ctrl1, BUS_SWAP32(w)); - - w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl2)); - W_SM(&di->txd64[new].ctrl2, BUS_SWAP32(w)); - - W_SM(&di->txd64[new].addrlow, R_SM(&di->txd64[old].addrlow)); - W_SM(&di->txd64[new].addrhigh, R_SM(&di->txd64[old].addrhigh)); - - /* zap the old tx dma descriptor address field */ - W_SM(&di->txd64[old].addrlow, BUS_SWAP32(0xdeadbeef)); - W_SM(&di->txd64[old].addrhigh, BUS_SWAP32(0xdeadbeef)); - - /* move the corresponding txp[] entry */ - di->txp[new] = di->txp[old]; - - /* Move the map */ - if (DMASGLIST_ENAB) { - memcpy(&di->txp_dmah[new], &di->txp_dmah[old], - sizeof(hnddma_seg_map_t)); - memset(&di->txp_dmah[old], 0, sizeof(hnddma_seg_map_t)); - } - - di->txp[old] = NULL; - } - - /* update txin and txout */ - di->txin = ad; - di->txout = TXD(di->txout + rot); - di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1; - - /* kick the chip */ - W_REG(&di->d64txregs->ptr, - di->xmtptrbase + I2B(di->txout, dma64dd_t)); -} - -uint dma_addrwidth(si_t *sih, void *dmaregs) -{ - /* Perform 64-bit checks only if we want to advertise 64-bit (> 32bit) capability) */ - /* DMA engine is 64-bit capable */ - if ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64) { - /* backplane are 64-bit capable */ - if (ai_backplane64(sih)) - /* If bus is System Backplane or PCIE then we can access 64-bits */ - if ((sih->bustype == SI_BUS) || - ((sih->bustype == PCI_BUS) && - (sih->buscoretype == PCIE_CORE_ID))) - return DMADDRWIDTH_64; - } - /* DMA hardware not supported by this driver*/ - return DMADDRWIDTH_64; -} - -/* - * Mac80211 initiated actions sometimes require packets in the DMA queue to be - * modified. The modified portion of the packet is not under control of the DMA - * engine. This function calls a caller-supplied function for each packet in - * the caller specified dma chain. - */ -void dma_walk_packets(struct hnddma_pub *dmah, void (*callback_fnc) - (void *pkt, void *arg_a), void *arg_a) -{ - dma_info_t *di = (dma_info_t *) dmah; - uint i = di->txin; - uint end = di->txout; - struct sk_buff *skb; - struct ieee80211_tx_info *tx_info; - - while (i != end) { - skb = (struct sk_buff *)di->txp[i]; - if (skb != NULL) { - tx_info = (struct ieee80211_tx_info *)skb->cb; - (callback_fnc)(tx_info, arg_a); - } - i = NEXTTXD(i); - } -} diff --git a/drivers/staging/brcm80211/brcmsmac/nicpci.c b/drivers/staging/brcm80211/brcmsmac/nicpci.c index 18b844a8d2fb..51d56b6b63d5 100644 --- a/drivers/staging/brcm80211/brcmsmac/nicpci.c +++ b/drivers/staging/brcm80211/brcmsmac/nicpci.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/nvram.c b/drivers/staging/brcm80211/brcmsmac/nvram.c index 085ec0b9224f..65fee2f658ab 100644 --- a/drivers/staging/brcm80211/brcmsmac/nvram.c +++ b/drivers/staging/brcm80211/brcmsmac/nvram.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #define NVR_MSG(x) diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c index 07a5bcb09159..22ba415c047a 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c @@ -27,7 +27,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c index b8864c5b7a19..b5ec9ae4a334 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c @@ -25,7 +25,7 @@ #include #include -#include +#include #include "wlc_phy_radio.h" #include "wlc_phy_int.h" diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c index 71275094e810..123bd6ae47d7 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c @@ -25,7 +25,7 @@ #include #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_lcn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_lcn.c index 81c59b05482a..e9d8661babd7 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_lcn.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_lcn.c @@ -15,7 +15,7 @@ */ #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_n.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_n.c index 742df997a3b1..e4a15c4db6b4 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_n.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phytbl_n.c @@ -16,7 +16,7 @@ #include -#include +#include #include #include diff --git a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c index 590d65bbbbea..f58272a73968 100644 --- a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c +++ b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c @@ -32,7 +32,7 @@ #include #include #include -#include +#include #include "phy/wlc_phy_int.h" #include "d11.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c b/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c index 3b04e02dae03..8a4875da57ed 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c @@ -19,7 +19,7 @@ #include #include #include -#include +#include #include "d11.h" #include "wlc_types.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c b/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c index c83896b04a2a..53ca0ffac477 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c @@ -19,8 +19,8 @@ #include #include #include -#include -#include +#include +#include #include #include "wlc_types.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_antsel.c b/drivers/staging/brcm80211/brcmsmac/wlc_antsel.c index efdc62a8fe58..d26a520e9622 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_antsel.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_antsel.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include "d11.h" #include "wlc_rate.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c b/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c index f98f0fdf35f3..492fb3e05c9d 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_bmac.c @@ -33,8 +33,8 @@ #include #include #include -#include -#include +#include +#include #include "wlc_types.h" #include "wlc_pmu.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_channel.c b/drivers/staging/brcm80211/brcmsmac/wlc_channel.c index 9e293395e5f1..0b980acdf330 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_channel.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_channel.c @@ -23,7 +23,7 @@ #include #include #include -#include +#include #include "wlc_types.h" #include "d11.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c index 54b5b7920bbe..c63920cc0b66 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.c @@ -27,8 +27,8 @@ #include #include #include -#include -#include +#include +#include #include "wlc_pmu.h" #include "d11.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_phy_shim.c b/drivers/staging/brcm80211/brcmsmac/wlc_phy_shim.c index c33b61bd95a3..3a8070641674 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_phy_shim.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_phy_shim.c @@ -33,8 +33,8 @@ #include #include #include -#include -#include +#include +#include #include #include "wlc_types.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c b/drivers/staging/brcm80211/brcmsmac/wlc_rate.c index 6c9574afccfd..4b84cc1c7239 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_rate.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_rate.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include "wlc_types.h" #include "d11.h" diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_stf.c b/drivers/staging/brcm80211/brcmsmac/wlc_stf.c index ca1b8aa0d182..cd051d9fc13c 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_stf.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_stf.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include "wlc_types.h" #include "d11.h" diff --git a/drivers/staging/brcm80211/include/bcmsoc.h b/drivers/staging/brcm80211/include/bcmsoc.h new file mode 100644 index 000000000000..6435686b329f --- /dev/null +++ b/drivers/staging/brcm80211/include/bcmsoc.h @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _HNDSOC_H +#define _HNDSOC_H + +/* Include the soci specific files */ +#include +#include + +/* + * SOC Interconnect Address Map. + * All regions may not exist on all chips. + */ +#define SI_SDRAM_BASE 0x00000000 /* Physical SDRAM */ +#define SI_PCI_MEM 0x08000000 /* Host Mode sb2pcitranslation0 (64 MB) */ +#define SI_PCI_MEM_SZ (64 * 1024 * 1024) +#define SI_PCI_CFG 0x0c000000 /* Host Mode sb2pcitranslation1 (64 MB) */ +#define SI_SDRAM_SWAPPED 0x10000000 /* Byteswapped Physical SDRAM */ +#define SI_SDRAM_R2 0x80000000 /* Region 2 for sdram (512 MB) */ + +#ifdef SI_ENUM_BASE_VARIABLE +#define SI_ENUM_BASE (sii->pub.si_enum_base) +#else +#define SI_ENUM_BASE 0x18000000 /* Enumeration space base */ +#endif /* SI_ENUM_BASE_VARIABLE */ + +#define SI_WRAP_BASE 0x18100000 /* Wrapper space base */ +#define SI_CORE_SIZE 0x1000 /* each core gets 4Kbytes for registers */ +#define SI_MAXCORES 16 /* Max cores (this is arbitrary, for software + * convenience and could be changed if we + * make any larger chips + */ + +#define SI_FASTRAM 0x19000000 /* On-chip RAM on chips that also have DDR */ +#define SI_FASTRAM_SWAPPED 0x19800000 + +#define SI_FLASH2 0x1c000000 /* Flash Region 2 (region 1 shadowed here) */ +#define SI_FLASH2_SZ 0x02000000 /* Size of Flash Region 2 */ +#define SI_ARMCM3_ROM 0x1e000000 /* ARM Cortex-M3 ROM */ +#define SI_FLASH1 0x1fc00000 /* MIPS Flash Region 1 */ +#define SI_FLASH1_SZ 0x00400000 /* MIPS Size of Flash Region 1 */ +#define SI_ARM7S_ROM 0x20000000 /* ARM7TDMI-S ROM */ +#define SI_ARMCM3_SRAM2 0x60000000 /* ARM Cortex-M3 SRAM Region 2 */ +#define SI_ARM7S_SRAM2 0x80000000 /* ARM7TDMI-S SRAM Region 2 */ +#define SI_ARM_FLASH1 0xffff0000 /* ARM Flash Region 1 */ +#define SI_ARM_FLASH1_SZ 0x00010000 /* ARM Size of Flash Region 1 */ + +#define SI_PCI_DMA 0x40000000 /* Client Mode sb2pcitranslation2 (1 GB) */ +#define SI_PCI_DMA2 0x80000000 /* Client Mode sb2pcitranslation2 (1 GB) */ +#define SI_PCI_DMA_SZ 0x40000000 /* Client Mode sb2pcitranslation2 size in bytes */ +#define SI_PCIE_DMA_L32 0x00000000 /* PCIE Client Mode sb2pcitranslation2 + * (2 ZettaBytes), low 32 bits + */ +#define SI_PCIE_DMA_H32 0x80000000 /* PCIE Client Mode sb2pcitranslation2 + * (2 ZettaBytes), high 32 bits + */ + +/* core codes */ +#define NODEV_CORE_ID 0x700 /* Invalid coreid */ +#define CC_CORE_ID 0x800 /* chipcommon core */ +#define ILINE20_CORE_ID 0x801 /* iline20 core */ +#define SRAM_CORE_ID 0x802 /* sram core */ +#define SDRAM_CORE_ID 0x803 /* sdram core */ +#define PCI_CORE_ID 0x804 /* pci core */ +#define MIPS_CORE_ID 0x805 /* mips core */ +#define ENET_CORE_ID 0x806 /* enet mac core */ +#define CODEC_CORE_ID 0x807 /* v90 codec core */ +#define USB_CORE_ID 0x808 /* usb 1.1 host/device core */ +#define ADSL_CORE_ID 0x809 /* ADSL core */ +#define ILINE100_CORE_ID 0x80a /* iline100 core */ +#define IPSEC_CORE_ID 0x80b /* ipsec core */ +#define UTOPIA_CORE_ID 0x80c /* utopia core */ +#define PCMCIA_CORE_ID 0x80d /* pcmcia core */ +#define SOCRAM_CORE_ID 0x80e /* internal memory core */ +#define MEMC_CORE_ID 0x80f /* memc sdram core */ +#define OFDM_CORE_ID 0x810 /* OFDM phy core */ +#define EXTIF_CORE_ID 0x811 /* external interface core */ +#define D11_CORE_ID 0x812 /* 802.11 MAC core */ +#define APHY_CORE_ID 0x813 /* 802.11a phy core */ +#define BPHY_CORE_ID 0x814 /* 802.11b phy core */ +#define GPHY_CORE_ID 0x815 /* 802.11g phy core */ +#define MIPS33_CORE_ID 0x816 /* mips3302 core */ +#define USB11H_CORE_ID 0x817 /* usb 1.1 host core */ +#define USB11D_CORE_ID 0x818 /* usb 1.1 device core */ +#define USB20H_CORE_ID 0x819 /* usb 2.0 host core */ +#define USB20D_CORE_ID 0x81a /* usb 2.0 device core */ +#define SDIOH_CORE_ID 0x81b /* sdio host core */ +#define ROBO_CORE_ID 0x81c /* roboswitch core */ +#define ATA100_CORE_ID 0x81d /* parallel ATA core */ +#define SATAXOR_CORE_ID 0x81e /* serial ATA & XOR DMA core */ +#define GIGETH_CORE_ID 0x81f /* gigabit ethernet core */ +#define PCIE_CORE_ID 0x820 /* pci express core */ +#define NPHY_CORE_ID 0x821 /* 802.11n 2x2 phy core */ +#define SRAMC_CORE_ID 0x822 /* SRAM controller core */ +#define MINIMAC_CORE_ID 0x823 /* MINI MAC/phy core */ +#define ARM11_CORE_ID 0x824 /* ARM 1176 core */ +#define ARM7S_CORE_ID 0x825 /* ARM7tdmi-s core */ +#define LPPHY_CORE_ID 0x826 /* 802.11a/b/g phy core */ +#define PMU_CORE_ID 0x827 /* PMU core */ +#define SSNPHY_CORE_ID 0x828 /* 802.11n single-stream phy core */ +#define SDIOD_CORE_ID 0x829 /* SDIO device core */ +#define ARMCM3_CORE_ID 0x82a /* ARM Cortex M3 core */ +#define HTPHY_CORE_ID 0x82b /* 802.11n 4x4 phy core */ +#define MIPS74K_CORE_ID 0x82c /* mips 74k core */ +#define GMAC_CORE_ID 0x82d /* Gigabit MAC core */ +#define DMEMC_CORE_ID 0x82e /* DDR1/2 memory controller core */ +#define PCIERC_CORE_ID 0x82f /* PCIE Root Complex core */ +#define OCP_CORE_ID 0x830 /* OCP2OCP bridge core */ +#define SC_CORE_ID 0x831 /* shared common core */ +#define AHB_CORE_ID 0x832 /* OCP2AHB bridge core */ +#define SPIH_CORE_ID 0x833 /* SPI host core */ +#define I2S_CORE_ID 0x834 /* I2S core */ +#define DMEMS_CORE_ID 0x835 /* SDR/DDR1 memory controller core */ +#define DEF_SHIM_COMP 0x837 /* SHIM component in ubus/6362 */ +#define OOB_ROUTER_CORE_ID 0x367 /* OOB router core ID */ +#define DEF_AI_COMP 0xfff /* Default component, in ai chips it maps all + * unused address ranges + */ + +/* There are TWO constants on all HND chips: SI_ENUM_BASE above, + * and chipcommon being the first core: + */ +#define SI_CC_IDX 0 + +/* SOC Interconnect types (aka chip types) */ +#define SOCI_AI 1 + +/* Common core control flags */ +#define SICF_BIST_EN 0x8000 +#define SICF_PME_EN 0x4000 +#define SICF_CORE_BITS 0x3ffc +#define SICF_FGC 0x0002 +#define SICF_CLOCK_EN 0x0001 + +/* Common core status flags */ +#define SISF_BIST_DONE 0x8000 +#define SISF_BIST_ERROR 0x4000 +#define SISF_GATED_CLK 0x2000 +#define SISF_DMA64 0x1000 +#define SISF_CORE_BITS 0x0fff + +/* A register that is common to all cores to + * communicate w/PMU regarding clock control. + */ +#define SI_CLK_CTL_ST 0x1e0 /* clock control and status */ + +/* clk_ctl_st register */ +#define CCS_FORCEALP 0x00000001 /* force ALP request */ +#define CCS_FORCEHT 0x00000002 /* force HT request */ +#define CCS_FORCEILP 0x00000004 /* force ILP request */ +#define CCS_ALPAREQ 0x00000008 /* ALP Avail Request */ +#define CCS_HTAREQ 0x00000010 /* HT Avail Request */ +#define CCS_FORCEHWREQOFF 0x00000020 /* Force HW Clock Request Off */ +#define CCS_ERSRC_REQ_MASK 0x00000700 /* external resource requests */ +#define CCS_ERSRC_REQ_SHIFT 8 +#define CCS_ALPAVAIL 0x00010000 /* ALP is available */ +#define CCS_HTAVAIL 0x00020000 /* HT is available */ +#define CCS_BP_ON_APL 0x00040000 /* RO: Backplane is running on ALP clock */ +#define CCS_BP_ON_HT 0x00080000 /* RO: Backplane is running on HT clock */ +#define CCS_ERSRC_STS_MASK 0x07000000 /* external resource status */ +#define CCS_ERSRC_STS_SHIFT 24 + +#define CCS0_HTAVAIL 0x00010000 /* HT avail in chipc and pcmcia on 4328a0 */ +#define CCS0_ALPAVAIL 0x00020000 /* ALP avail in chipc and pcmcia on 4328a0 */ + +/* Not really related to SOC Interconnect, but a couple of software + * conventions for the use the flash space: + */ + +/* Minimum amount of flash we support */ +#define FLASH_MIN 0x00020000 /* Minimum flash size */ + +/* A boot/binary may have an embedded block that describes its size */ +#define BISZ_OFFSET 0x3e0 /* At this offset into the binary */ +#define BISZ_MAGIC 0x4249535a /* Marked with this value: 'BISZ' */ +#define BISZ_MAGIC_IDX 0 /* Word 0: magic */ +#define BISZ_TXTST_IDX 1 /* 1: text start */ +#define BISZ_TXTEND_IDX 2 /* 2: text end */ +#define BISZ_DATAST_IDX 3 /* 3: data start */ +#define BISZ_DATAEND_IDX 4 /* 4: data end */ +#define BISZ_BSSST_IDX 5 /* 5: bss start */ +#define BISZ_BSSEND_IDX 6 /* 6: bss end */ +#define BISZ_SIZE 7 /* descriptor size in 32-bit integers */ + +#endif /* _HNDSOC_H */ diff --git a/drivers/staging/brcm80211/include/hnddma.h b/drivers/staging/brcm80211/include/hnddma.h deleted file mode 100644 index fbbcb9b5ae62..000000000000 --- a/drivers/staging/brcm80211/include/hnddma.h +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _hnddma_h_ -#define _hnddma_h_ - -#ifndef _hnddma_pub_ -#define _hnddma_pub_ -struct hnddma_pub; -#endif /* _hnddma_pub_ */ - -/* map/unmap direction */ -#define DMA_TX 1 /* TX direction for DMA */ -#define DMA_RX 2 /* RX direction for DMA */ -#define BUS_SWAP32(v) (v) - -/* range param for dma_getnexttxp() and dma_txreclaim */ -typedef enum txd_range { - HNDDMA_RANGE_ALL = 1, - HNDDMA_RANGE_TRANSMITTED, - HNDDMA_RANGE_TRANSFERED -} txd_range_t; - -/* dma function type */ -typedef void (*di_detach_t) (struct hnddma_pub *dmah); -typedef bool(*di_txreset_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxreset_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxidle_t) (struct hnddma_pub *dmah); -typedef void (*di_txinit_t) (struct hnddma_pub *dmah); -typedef bool(*di_txenabled_t) (struct hnddma_pub *dmah); -typedef void (*di_rxinit_t) (struct hnddma_pub *dmah); -typedef void (*di_txsuspend_t) (struct hnddma_pub *dmah); -typedef void (*di_txresume_t) (struct hnddma_pub *dmah); -typedef bool(*di_txsuspended_t) (struct hnddma_pub *dmah); -typedef bool(*di_txsuspendedidle_t) (struct hnddma_pub *dmah); -typedef int (*di_txfast_t) (struct hnddma_pub *dmah, struct sk_buff *p, - bool commit); -typedef int (*di_txunframed_t) (struct hnddma_pub *dmah, void *p, uint len, - bool commit); -typedef void *(*di_getpos_t) (struct hnddma_pub *di, bool direction); -typedef void (*di_fifoloopbackenable_t) (struct hnddma_pub *dmah); -typedef bool(*di_txstopped_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxstopped_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxenable_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxenabled_t) (struct hnddma_pub *dmah); -typedef void *(*di_rx_t) (struct hnddma_pub *dmah); -typedef bool(*di_rxfill_t) (struct hnddma_pub *dmah); -typedef void (*di_txreclaim_t) (struct hnddma_pub *dmah, txd_range_t range); -typedef void (*di_rxreclaim_t) (struct hnddma_pub *dmah); -typedef unsigned long (*di_getvar_t) (struct hnddma_pub *dmah, - const char *name); -typedef void *(*di_getnexttxp_t) (struct hnddma_pub *dmah, txd_range_t range); -typedef void *(*di_getnextrxp_t) (struct hnddma_pub *dmah, bool forceall); -typedef void *(*di_peeknexttxp_t) (struct hnddma_pub *dmah); -typedef void *(*di_peeknextrxp_t) (struct hnddma_pub *dmah); -typedef void (*di_rxparam_get_t) (struct hnddma_pub *dmah, u16 *rxoffset, - u16 *rxbufsize); -typedef void (*di_txblock_t) (struct hnddma_pub *dmah); -typedef void (*di_txunblock_t) (struct hnddma_pub *dmah); -typedef uint(*di_txactive_t) (struct hnddma_pub *dmah); -typedef void (*di_txrotate_t) (struct hnddma_pub *dmah); -typedef void (*di_counterreset_t) (struct hnddma_pub *dmah); -typedef uint(*di_ctrlflags_t) (struct hnddma_pub *dmah, uint mask, uint flags); -typedef char *(*di_dump_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, - bool dumpring); -typedef char *(*di_dumptx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, - bool dumpring); -typedef char *(*di_dumprx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b, - bool dumpring); -typedef uint(*di_rxactive_t) (struct hnddma_pub *dmah); -typedef uint(*di_txpending_t) (struct hnddma_pub *dmah); -typedef uint(*di_txcommitted_t) (struct hnddma_pub *dmah); - -/* dma opsvec */ -typedef struct di_fcn_s { - di_detach_t detach; - di_txinit_t txinit; - di_txreset_t txreset; - di_txenabled_t txenabled; - di_txsuspend_t txsuspend; - di_txresume_t txresume; - di_txsuspended_t txsuspended; - di_txsuspendedidle_t txsuspendedidle; - di_txfast_t txfast; - di_txunframed_t txunframed; - di_getpos_t getpos; - di_txstopped_t txstopped; - di_txreclaim_t txreclaim; - di_getnexttxp_t getnexttxp; - di_peeknexttxp_t peeknexttxp; - di_txblock_t txblock; - di_txunblock_t txunblock; - di_txactive_t txactive; - di_txrotate_t txrotate; - - di_rxinit_t rxinit; - di_rxreset_t rxreset; - di_rxidle_t rxidle; - di_rxstopped_t rxstopped; - di_rxenable_t rxenable; - di_rxenabled_t rxenabled; - di_rx_t rx; - di_rxfill_t rxfill; - di_rxreclaim_t rxreclaim; - di_getnextrxp_t getnextrxp; - di_peeknextrxp_t peeknextrxp; - di_rxparam_get_t rxparam_get; - - di_fifoloopbackenable_t fifoloopbackenable; - di_getvar_t d_getvar; - di_counterreset_t counterreset; - di_ctrlflags_t ctrlflags; - di_dump_t dump; - di_dumptx_t dumptx; - di_dumprx_t dumprx; - di_rxactive_t rxactive; - di_txpending_t txpending; - di_txcommitted_t txcommitted; - uint endnum; -} di_fcn_t; - -/* - * Exported data structure (read-only) - */ -/* export structure */ -struct hnddma_pub { - const di_fcn_t *di_fn; /* DMA function pointers */ - uint txavail; /* # free tx descriptors */ - uint dmactrlflags; /* dma control flags */ - - /* rx error counters */ - uint rxgiants; /* rx giant frames */ - uint rxnobuf; /* rx out of dma descriptors */ - /* tx error counters */ - uint txnobuf; /* tx out of dma descriptors */ -}; - -extern struct hnddma_pub *dma_attach(char *name, si_t *sih, - void *dmaregstx, void *dmaregsrx, uint ntxd, - uint nrxd, uint rxbufsize, int rxextheadroom, - uint nrxpost, uint rxoffset, uint *msg_level); - -extern const di_fcn_t dma64proc; - -#define dma_detach(di) (dma64proc.detach(di)) -#define dma_txreset(di) (dma64proc.txreset(di)) -#define dma_rxreset(di) (dma64proc.rxreset(di)) -#define dma_rxidle(di) (dma64proc.rxidle(di)) -#define dma_txinit(di) (dma64proc.txinit(di)) -#define dma_txenabled(di) (dma64proc.txenabled(di)) -#define dma_rxinit(di) (dma64proc.rxinit(di)) -#define dma_txsuspend(di) (dma64proc.txsuspend(di)) -#define dma_txresume(di) (dma64proc.txresume(di)) -#define dma_txsuspended(di) (dma64proc.txsuspended(di)) -#define dma_txsuspendedidle(di) (dma64proc.txsuspendedidle(di)) -#define dma_txfast(di, p, commit) (dma64proc.txfast(di, p, commit)) -#define dma_txunframed(di, p, l, commit)(dma64proc.txunframed(di, p, l, commit)) -#define dma_getpos(di, dir) (dma64proc.getpos(di, dir)) -#define dma_fifoloopbackenable(di) (dma64proc.fifoloopbackenable(di)) -#define dma_txstopped(di) (dma64proc.txstopped(di)) -#define dma_rxstopped(di) (dma64proc.rxstopped(di)) -#define dma_rxenable(di) (dma64proc.rxenable(di)) -#define dma_rxenabled(di) (dma64proc.rxenabled(di)) -#define dma_rx(di) (dma64proc.rx(di)) -#define dma_rxfill(di) (dma64proc.rxfill(di)) -#define dma_txreclaim(di, range) (dma64proc.txreclaim(di, range)) -#define dma_rxreclaim(di) (dma64proc.rxreclaim(di)) -#define dma_getvar(di, name) (dma64proc.d_getvar(di, name)) -#define dma_getnexttxp(di, range) (dma64proc.getnexttxp(di, range)) -#define dma_getnextrxp(di, forceall) (dma64proc.getnextrxp(di, forceall)) -#define dma_peeknexttxp(di) (dma64proc.peeknexttxp(di)) -#define dma_peeknextrxp(di) (dma64proc.peeknextrxp(di)) -#define dma_rxparam_get(di, off, bufs) (dma64proc.rxparam_get(di, off, bufs)) - -#define dma_txblock(di) (dma64proc.txblock(di)) -#define dma_txunblock(di) (dma64proc.txunblock(di)) -#define dma_txactive(di) (dma64proc.txactive(di)) -#define dma_rxactive(di) (dma64proc.rxactive(di)) -#define dma_txrotate(di) (dma64proc.txrotate(di)) -#define dma_counterreset(di) (dma64proc.counterreset(di)) -#define dma_ctrlflags(di, mask, flags) (dma64proc.ctrlflags((di), (mask), (flags))) -#define dma_txpending(di) (dma64proc.txpending(di)) -#define dma_txcommitted(di) (dma64proc.txcommitted(di)) - - -/* return addresswidth allowed - * This needs to be done after SB attach but before dma attach. - * SB attach provides ability to probe backplane and dma core capabilities - * This info is needed by DMA_ALLOC_CONSISTENT in dma attach - */ -extern uint dma_addrwidth(si_t *sih, void *dmaregs); -void dma_walk_packets(struct hnddma_pub *dmah, void (*callback_fnc) - (void *pkt, void *arg_a), void *arg_a); - -/* - * DMA(Bug) on some chips seems to declare that the packet is ready, but the - * packet length is not updated yet (by DMA) on the expected time. - * Workaround is to hold processor till DMA updates the length, and stay off - * the bus to allow DMA update the length in buffer - */ -static inline void dma_spin_for_len(uint len, struct sk_buff *head) -{ -#if defined(__mips__) - if (!len) { - while (!(len = *(u16 *) KSEG1ADDR(head->data))) - udelay(1); - - *(u16 *) (head->data) = cpu_to_le16((u16) len); - } -#endif /* defined(__mips__) */ -} - -#endif /* _hnddma_h_ */ diff --git a/drivers/staging/brcm80211/include/hndsoc.h b/drivers/staging/brcm80211/include/hndsoc.h deleted file mode 100644 index 6435686b329f..000000000000 --- a/drivers/staging/brcm80211/include/hndsoc.h +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _HNDSOC_H -#define _HNDSOC_H - -/* Include the soci specific files */ -#include -#include - -/* - * SOC Interconnect Address Map. - * All regions may not exist on all chips. - */ -#define SI_SDRAM_BASE 0x00000000 /* Physical SDRAM */ -#define SI_PCI_MEM 0x08000000 /* Host Mode sb2pcitranslation0 (64 MB) */ -#define SI_PCI_MEM_SZ (64 * 1024 * 1024) -#define SI_PCI_CFG 0x0c000000 /* Host Mode sb2pcitranslation1 (64 MB) */ -#define SI_SDRAM_SWAPPED 0x10000000 /* Byteswapped Physical SDRAM */ -#define SI_SDRAM_R2 0x80000000 /* Region 2 for sdram (512 MB) */ - -#ifdef SI_ENUM_BASE_VARIABLE -#define SI_ENUM_BASE (sii->pub.si_enum_base) -#else -#define SI_ENUM_BASE 0x18000000 /* Enumeration space base */ -#endif /* SI_ENUM_BASE_VARIABLE */ - -#define SI_WRAP_BASE 0x18100000 /* Wrapper space base */ -#define SI_CORE_SIZE 0x1000 /* each core gets 4Kbytes for registers */ -#define SI_MAXCORES 16 /* Max cores (this is arbitrary, for software - * convenience and could be changed if we - * make any larger chips - */ - -#define SI_FASTRAM 0x19000000 /* On-chip RAM on chips that also have DDR */ -#define SI_FASTRAM_SWAPPED 0x19800000 - -#define SI_FLASH2 0x1c000000 /* Flash Region 2 (region 1 shadowed here) */ -#define SI_FLASH2_SZ 0x02000000 /* Size of Flash Region 2 */ -#define SI_ARMCM3_ROM 0x1e000000 /* ARM Cortex-M3 ROM */ -#define SI_FLASH1 0x1fc00000 /* MIPS Flash Region 1 */ -#define SI_FLASH1_SZ 0x00400000 /* MIPS Size of Flash Region 1 */ -#define SI_ARM7S_ROM 0x20000000 /* ARM7TDMI-S ROM */ -#define SI_ARMCM3_SRAM2 0x60000000 /* ARM Cortex-M3 SRAM Region 2 */ -#define SI_ARM7S_SRAM2 0x80000000 /* ARM7TDMI-S SRAM Region 2 */ -#define SI_ARM_FLASH1 0xffff0000 /* ARM Flash Region 1 */ -#define SI_ARM_FLASH1_SZ 0x00010000 /* ARM Size of Flash Region 1 */ - -#define SI_PCI_DMA 0x40000000 /* Client Mode sb2pcitranslation2 (1 GB) */ -#define SI_PCI_DMA2 0x80000000 /* Client Mode sb2pcitranslation2 (1 GB) */ -#define SI_PCI_DMA_SZ 0x40000000 /* Client Mode sb2pcitranslation2 size in bytes */ -#define SI_PCIE_DMA_L32 0x00000000 /* PCIE Client Mode sb2pcitranslation2 - * (2 ZettaBytes), low 32 bits - */ -#define SI_PCIE_DMA_H32 0x80000000 /* PCIE Client Mode sb2pcitranslation2 - * (2 ZettaBytes), high 32 bits - */ - -/* core codes */ -#define NODEV_CORE_ID 0x700 /* Invalid coreid */ -#define CC_CORE_ID 0x800 /* chipcommon core */ -#define ILINE20_CORE_ID 0x801 /* iline20 core */ -#define SRAM_CORE_ID 0x802 /* sram core */ -#define SDRAM_CORE_ID 0x803 /* sdram core */ -#define PCI_CORE_ID 0x804 /* pci core */ -#define MIPS_CORE_ID 0x805 /* mips core */ -#define ENET_CORE_ID 0x806 /* enet mac core */ -#define CODEC_CORE_ID 0x807 /* v90 codec core */ -#define USB_CORE_ID 0x808 /* usb 1.1 host/device core */ -#define ADSL_CORE_ID 0x809 /* ADSL core */ -#define ILINE100_CORE_ID 0x80a /* iline100 core */ -#define IPSEC_CORE_ID 0x80b /* ipsec core */ -#define UTOPIA_CORE_ID 0x80c /* utopia core */ -#define PCMCIA_CORE_ID 0x80d /* pcmcia core */ -#define SOCRAM_CORE_ID 0x80e /* internal memory core */ -#define MEMC_CORE_ID 0x80f /* memc sdram core */ -#define OFDM_CORE_ID 0x810 /* OFDM phy core */ -#define EXTIF_CORE_ID 0x811 /* external interface core */ -#define D11_CORE_ID 0x812 /* 802.11 MAC core */ -#define APHY_CORE_ID 0x813 /* 802.11a phy core */ -#define BPHY_CORE_ID 0x814 /* 802.11b phy core */ -#define GPHY_CORE_ID 0x815 /* 802.11g phy core */ -#define MIPS33_CORE_ID 0x816 /* mips3302 core */ -#define USB11H_CORE_ID 0x817 /* usb 1.1 host core */ -#define USB11D_CORE_ID 0x818 /* usb 1.1 device core */ -#define USB20H_CORE_ID 0x819 /* usb 2.0 host core */ -#define USB20D_CORE_ID 0x81a /* usb 2.0 device core */ -#define SDIOH_CORE_ID 0x81b /* sdio host core */ -#define ROBO_CORE_ID 0x81c /* roboswitch core */ -#define ATA100_CORE_ID 0x81d /* parallel ATA core */ -#define SATAXOR_CORE_ID 0x81e /* serial ATA & XOR DMA core */ -#define GIGETH_CORE_ID 0x81f /* gigabit ethernet core */ -#define PCIE_CORE_ID 0x820 /* pci express core */ -#define NPHY_CORE_ID 0x821 /* 802.11n 2x2 phy core */ -#define SRAMC_CORE_ID 0x822 /* SRAM controller core */ -#define MINIMAC_CORE_ID 0x823 /* MINI MAC/phy core */ -#define ARM11_CORE_ID 0x824 /* ARM 1176 core */ -#define ARM7S_CORE_ID 0x825 /* ARM7tdmi-s core */ -#define LPPHY_CORE_ID 0x826 /* 802.11a/b/g phy core */ -#define PMU_CORE_ID 0x827 /* PMU core */ -#define SSNPHY_CORE_ID 0x828 /* 802.11n single-stream phy core */ -#define SDIOD_CORE_ID 0x829 /* SDIO device core */ -#define ARMCM3_CORE_ID 0x82a /* ARM Cortex M3 core */ -#define HTPHY_CORE_ID 0x82b /* 802.11n 4x4 phy core */ -#define MIPS74K_CORE_ID 0x82c /* mips 74k core */ -#define GMAC_CORE_ID 0x82d /* Gigabit MAC core */ -#define DMEMC_CORE_ID 0x82e /* DDR1/2 memory controller core */ -#define PCIERC_CORE_ID 0x82f /* PCIE Root Complex core */ -#define OCP_CORE_ID 0x830 /* OCP2OCP bridge core */ -#define SC_CORE_ID 0x831 /* shared common core */ -#define AHB_CORE_ID 0x832 /* OCP2AHB bridge core */ -#define SPIH_CORE_ID 0x833 /* SPI host core */ -#define I2S_CORE_ID 0x834 /* I2S core */ -#define DMEMS_CORE_ID 0x835 /* SDR/DDR1 memory controller core */ -#define DEF_SHIM_COMP 0x837 /* SHIM component in ubus/6362 */ -#define OOB_ROUTER_CORE_ID 0x367 /* OOB router core ID */ -#define DEF_AI_COMP 0xfff /* Default component, in ai chips it maps all - * unused address ranges - */ - -/* There are TWO constants on all HND chips: SI_ENUM_BASE above, - * and chipcommon being the first core: - */ -#define SI_CC_IDX 0 - -/* SOC Interconnect types (aka chip types) */ -#define SOCI_AI 1 - -/* Common core control flags */ -#define SICF_BIST_EN 0x8000 -#define SICF_PME_EN 0x4000 -#define SICF_CORE_BITS 0x3ffc -#define SICF_FGC 0x0002 -#define SICF_CLOCK_EN 0x0001 - -/* Common core status flags */ -#define SISF_BIST_DONE 0x8000 -#define SISF_BIST_ERROR 0x4000 -#define SISF_GATED_CLK 0x2000 -#define SISF_DMA64 0x1000 -#define SISF_CORE_BITS 0x0fff - -/* A register that is common to all cores to - * communicate w/PMU regarding clock control. - */ -#define SI_CLK_CTL_ST 0x1e0 /* clock control and status */ - -/* clk_ctl_st register */ -#define CCS_FORCEALP 0x00000001 /* force ALP request */ -#define CCS_FORCEHT 0x00000002 /* force HT request */ -#define CCS_FORCEILP 0x00000004 /* force ILP request */ -#define CCS_ALPAREQ 0x00000008 /* ALP Avail Request */ -#define CCS_HTAREQ 0x00000010 /* HT Avail Request */ -#define CCS_FORCEHWREQOFF 0x00000020 /* Force HW Clock Request Off */ -#define CCS_ERSRC_REQ_MASK 0x00000700 /* external resource requests */ -#define CCS_ERSRC_REQ_SHIFT 8 -#define CCS_ALPAVAIL 0x00010000 /* ALP is available */ -#define CCS_HTAVAIL 0x00020000 /* HT is available */ -#define CCS_BP_ON_APL 0x00040000 /* RO: Backplane is running on ALP clock */ -#define CCS_BP_ON_HT 0x00080000 /* RO: Backplane is running on HT clock */ -#define CCS_ERSRC_STS_MASK 0x07000000 /* external resource status */ -#define CCS_ERSRC_STS_SHIFT 24 - -#define CCS0_HTAVAIL 0x00010000 /* HT avail in chipc and pcmcia on 4328a0 */ -#define CCS0_ALPAVAIL 0x00020000 /* ALP avail in chipc and pcmcia on 4328a0 */ - -/* Not really related to SOC Interconnect, but a couple of software - * conventions for the use the flash space: - */ - -/* Minimum amount of flash we support */ -#define FLASH_MIN 0x00020000 /* Minimum flash size */ - -/* A boot/binary may have an embedded block that describes its size */ -#define BISZ_OFFSET 0x3e0 /* At this offset into the binary */ -#define BISZ_MAGIC 0x4249535a /* Marked with this value: 'BISZ' */ -#define BISZ_MAGIC_IDX 0 /* Word 0: magic */ -#define BISZ_TXTST_IDX 1 /* 1: text start */ -#define BISZ_TXTEND_IDX 2 /* 2: text end */ -#define BISZ_DATAST_IDX 3 /* 3: data start */ -#define BISZ_DATAEND_IDX 4 /* 4: data end */ -#define BISZ_BSSST_IDX 5 /* 5: bss start */ -#define BISZ_BSSEND_IDX 6 /* 6: bss end */ -#define BISZ_SIZE 7 /* descriptor size in 32-bit integers */ - -#endif /* _HNDSOC_H */ diff --git a/drivers/staging/brcm80211/include/sbdma.h b/drivers/staging/brcm80211/include/sbdma.h new file mode 100644 index 000000000000..08cb7f6e0d85 --- /dev/null +++ b/drivers/staging/brcm80211/include/sbdma.h @@ -0,0 +1,315 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _sbhnddma_h_ +#define _sbhnddma_h_ + +/* DMA structure: + * support two DMA engines: 32 bits address or 64 bit addressing + * basic DMA register set is per channel(transmit or receive) + * a pair of channels is defined for convenience + */ + +/* 32 bits addressing */ + +/* dma registers per channel(xmt or rcv) */ +typedef volatile struct { + u32 control; /* enable, et al */ + u32 addr; /* descriptor ring base address (4K aligned) */ + u32 ptr; /* last descriptor posted to chip */ + u32 status; /* current active descriptor, et al */ +} dma32regs_t; + +typedef volatile struct { + dma32regs_t xmt; /* dma tx channel */ + dma32regs_t rcv; /* dma rx channel */ +} dma32regp_t; + +typedef volatile struct { /* diag access */ + u32 fifoaddr; /* diag address */ + u32 fifodatalow; /* low 32bits of data */ + u32 fifodatahigh; /* high 32bits of data */ + u32 pad; /* reserved */ +} dma32diag_t; + +/* + * DMA Descriptor + * Descriptors are only read by the hardware, never written back. + */ +typedef volatile struct { + u32 ctrl; /* misc control bits & bufcount */ + u32 addr; /* data buffer address */ +} dma32dd_t; + +/* + * Each descriptor ring must be 4096byte aligned, and fit within a single 4096byte page. + */ +#define D32RINGALIGN_BITS 12 +#define D32MAXRINGSZ (1 << D32RINGALIGN_BITS) +#define D32RINGALIGN (1 << D32RINGALIGN_BITS) + +#define D32MAXDD (D32MAXRINGSZ / sizeof (dma32dd_t)) + +/* transmit channel control */ +#define XC_XE ((u32)1 << 0) /* transmit enable */ +#define XC_SE ((u32)1 << 1) /* transmit suspend request */ +#define XC_LE ((u32)1 << 2) /* loopback enable */ +#define XC_FL ((u32)1 << 4) /* flush request */ +#define XC_PD ((u32)1 << 11) /* parity check disable */ +#define XC_AE ((u32)3 << 16) /* address extension bits */ +#define XC_AE_SHIFT 16 + +/* transmit descriptor table pointer */ +#define XP_LD_MASK 0xfff /* last valid descriptor */ + +/* transmit channel status */ +#define XS_CD_MASK 0x0fff /* current descriptor pointer */ +#define XS_XS_MASK 0xf000 /* transmit state */ +#define XS_XS_SHIFT 12 +#define XS_XS_DISABLED 0x0000 /* disabled */ +#define XS_XS_ACTIVE 0x1000 /* active */ +#define XS_XS_IDLE 0x2000 /* idle wait */ +#define XS_XS_STOPPED 0x3000 /* stopped */ +#define XS_XS_SUSP 0x4000 /* suspend pending */ +#define XS_XE_MASK 0xf0000 /* transmit errors */ +#define XS_XE_SHIFT 16 +#define XS_XE_NOERR 0x00000 /* no error */ +#define XS_XE_DPE 0x10000 /* descriptor protocol error */ +#define XS_XE_DFU 0x20000 /* data fifo underrun */ +#define XS_XE_BEBR 0x30000 /* bus error on buffer read */ +#define XS_XE_BEDA 0x40000 /* bus error on descriptor access */ +#define XS_AD_MASK 0xfff00000 /* active descriptor */ +#define XS_AD_SHIFT 20 + +/* receive channel control */ +#define RC_RE ((u32)1 << 0) /* receive enable */ +#define RC_RO_MASK 0xfe /* receive frame offset */ +#define RC_RO_SHIFT 1 +#define RC_FM ((u32)1 << 8) /* direct fifo receive (pio) mode */ +#define RC_SH ((u32)1 << 9) /* separate rx header descriptor enable */ +#define RC_OC ((u32)1 << 10) /* overflow continue */ +#define RC_PD ((u32)1 << 11) /* parity check disable */ +#define RC_AE ((u32)3 << 16) /* address extension bits */ +#define RC_AE_SHIFT 16 + +/* receive descriptor table pointer */ +#define RP_LD_MASK 0xfff /* last valid descriptor */ + +/* receive channel status */ +#define RS_CD_MASK 0x0fff /* current descriptor pointer */ +#define RS_RS_MASK 0xf000 /* receive state */ +#define RS_RS_SHIFT 12 +#define RS_RS_DISABLED 0x0000 /* disabled */ +#define RS_RS_ACTIVE 0x1000 /* active */ +#define RS_RS_IDLE 0x2000 /* idle wait */ +#define RS_RS_STOPPED 0x3000 /* reserved */ +#define RS_RE_MASK 0xf0000 /* receive errors */ +#define RS_RE_SHIFT 16 +#define RS_RE_NOERR 0x00000 /* no error */ +#define RS_RE_DPE 0x10000 /* descriptor protocol error */ +#define RS_RE_DFO 0x20000 /* data fifo overflow */ +#define RS_RE_BEBW 0x30000 /* bus error on buffer write */ +#define RS_RE_BEDA 0x40000 /* bus error on descriptor access */ +#define RS_AD_MASK 0xfff00000 /* active descriptor */ +#define RS_AD_SHIFT 20 + +/* fifoaddr */ +#define FA_OFF_MASK 0xffff /* offset */ +#define FA_SEL_MASK 0xf0000 /* select */ +#define FA_SEL_SHIFT 16 +#define FA_SEL_XDD 0x00000 /* transmit dma data */ +#define FA_SEL_XDP 0x10000 /* transmit dma pointers */ +#define FA_SEL_RDD 0x40000 /* receive dma data */ +#define FA_SEL_RDP 0x50000 /* receive dma pointers */ +#define FA_SEL_XFD 0x80000 /* transmit fifo data */ +#define FA_SEL_XFP 0x90000 /* transmit fifo pointers */ +#define FA_SEL_RFD 0xc0000 /* receive fifo data */ +#define FA_SEL_RFP 0xd0000 /* receive fifo pointers */ +#define FA_SEL_RSD 0xe0000 /* receive frame status data */ +#define FA_SEL_RSP 0xf0000 /* receive frame status pointers */ + +/* descriptor control flags */ +#define CTRL_BC_MASK 0x00001fff /* buffer byte count, real data len must <= 4KB */ +#define CTRL_AE ((u32)3 << 16) /* address extension bits */ +#define CTRL_AE_SHIFT 16 +#define CTRL_PARITY ((u32)3 << 18) /* parity bit */ +#define CTRL_EOT ((u32)1 << 28) /* end of descriptor table */ +#define CTRL_IOC ((u32)1 << 29) /* interrupt on completion */ +#define CTRL_EOF ((u32)1 << 30) /* end of frame */ +#define CTRL_SOF ((u32)1 << 31) /* start of frame */ + +/* control flags in the range [27:20] are core-specific and not defined here */ +#define CTRL_CORE_MASK 0x0ff00000 + +/* 64 bits addressing */ + +/* dma registers per channel(xmt or rcv) */ +typedef volatile struct { + u32 control; /* enable, et al */ + u32 ptr; /* last descriptor posted to chip */ + u32 addrlow; /* descriptor ring base address low 32-bits (8K aligned) */ + u32 addrhigh; /* descriptor ring base address bits 63:32 (8K aligned) */ + u32 status0; /* current descriptor, xmt state */ + u32 status1; /* active descriptor, xmt error */ +} dma64regs_t; + +typedef volatile struct { + dma64regs_t tx; /* dma64 tx channel */ + dma64regs_t rx; /* dma64 rx channel */ +} dma64regp_t; + +typedef volatile struct { /* diag access */ + u32 fifoaddr; /* diag address */ + u32 fifodatalow; /* low 32bits of data */ + u32 fifodatahigh; /* high 32bits of data */ + u32 pad; /* reserved */ +} dma64diag_t; + +/* + * DMA Descriptor + * Descriptors are only read by the hardware, never written back. + */ +typedef volatile struct { + u32 ctrl1; /* misc control bits & bufcount */ + u32 ctrl2; /* buffer count and address extension */ + u32 addrlow; /* memory address of the date buffer, bits 31:0 */ + u32 addrhigh; /* memory address of the date buffer, bits 63:32 */ +} dma64dd_t; + +/* + * Each descriptor ring must be 8kB aligned, and fit within a contiguous 8kB physical address. + */ +#define D64RINGALIGN_BITS 13 +#define D64MAXRINGSZ (1 << D64RINGALIGN_BITS) +#define D64RINGALIGN (1 << D64RINGALIGN_BITS) + +#define D64MAXDD (D64MAXRINGSZ / sizeof (dma64dd_t)) + +/* transmit channel control */ +#define D64_XC_XE 0x00000001 /* transmit enable */ +#define D64_XC_SE 0x00000002 /* transmit suspend request */ +#define D64_XC_LE 0x00000004 /* loopback enable */ +#define D64_XC_FL 0x00000010 /* flush request */ +#define D64_XC_PD 0x00000800 /* parity check disable */ +#define D64_XC_AE 0x00030000 /* address extension bits */ +#define D64_XC_AE_SHIFT 16 + +/* transmit descriptor table pointer */ +#define D64_XP_LD_MASK 0x00000fff /* last valid descriptor */ + +/* transmit channel status */ +#define D64_XS0_CD_MASK 0x00001fff /* current descriptor pointer */ +#define D64_XS0_XS_MASK 0xf0000000 /* transmit state */ +#define D64_XS0_XS_SHIFT 28 +#define D64_XS0_XS_DISABLED 0x00000000 /* disabled */ +#define D64_XS0_XS_ACTIVE 0x10000000 /* active */ +#define D64_XS0_XS_IDLE 0x20000000 /* idle wait */ +#define D64_XS0_XS_STOPPED 0x30000000 /* stopped */ +#define D64_XS0_XS_SUSP 0x40000000 /* suspend pending */ + +#define D64_XS1_AD_MASK 0x00001fff /* active descriptor */ +#define D64_XS1_XE_MASK 0xf0000000 /* transmit errors */ +#define D64_XS1_XE_SHIFT 28 +#define D64_XS1_XE_NOERR 0x00000000 /* no error */ +#define D64_XS1_XE_DPE 0x10000000 /* descriptor protocol error */ +#define D64_XS1_XE_DFU 0x20000000 /* data fifo underrun */ +#define D64_XS1_XE_DTE 0x30000000 /* data transfer error */ +#define D64_XS1_XE_DESRE 0x40000000 /* descriptor read error */ +#define D64_XS1_XE_COREE 0x50000000 /* core error */ + +/* receive channel control */ +#define D64_RC_RE 0x00000001 /* receive enable */ +#define D64_RC_RO_MASK 0x000000fe /* receive frame offset */ +#define D64_RC_RO_SHIFT 1 +#define D64_RC_FM 0x00000100 /* direct fifo receive (pio) mode */ +#define D64_RC_SH 0x00000200 /* separate rx header descriptor enable */ +#define D64_RC_OC 0x00000400 /* overflow continue */ +#define D64_RC_PD 0x00000800 /* parity check disable */ +#define D64_RC_AE 0x00030000 /* address extension bits */ +#define D64_RC_AE_SHIFT 16 + +/* flags for dma controller */ +#define DMA_CTRL_PEN (1 << 0) /* partity enable */ +#define DMA_CTRL_ROC (1 << 1) /* rx overflow continue */ +#define DMA_CTRL_RXMULTI (1 << 2) /* allow rx scatter to multiple descriptors */ +#define DMA_CTRL_UNFRAMED (1 << 3) /* Unframed Rx/Tx data */ + +/* receive descriptor table pointer */ +#define D64_RP_LD_MASK 0x00000fff /* last valid descriptor */ + +/* receive channel status */ +#define D64_RS0_CD_MASK 0x00001fff /* current descriptor pointer */ +#define D64_RS0_RS_MASK 0xf0000000 /* receive state */ +#define D64_RS0_RS_SHIFT 28 +#define D64_RS0_RS_DISABLED 0x00000000 /* disabled */ +#define D64_RS0_RS_ACTIVE 0x10000000 /* active */ +#define D64_RS0_RS_IDLE 0x20000000 /* idle wait */ +#define D64_RS0_RS_STOPPED 0x30000000 /* stopped */ +#define D64_RS0_RS_SUSP 0x40000000 /* suspend pending */ + +#define D64_RS1_AD_MASK 0x0001ffff /* active descriptor */ +#define D64_RS1_RE_MASK 0xf0000000 /* receive errors */ +#define D64_RS1_RE_SHIFT 28 +#define D64_RS1_RE_NOERR 0x00000000 /* no error */ +#define D64_RS1_RE_DPO 0x10000000 /* descriptor protocol error */ +#define D64_RS1_RE_DFU 0x20000000 /* data fifo overflow */ +#define D64_RS1_RE_DTE 0x30000000 /* data transfer error */ +#define D64_RS1_RE_DESRE 0x40000000 /* descriptor read error */ +#define D64_RS1_RE_COREE 0x50000000 /* core error */ + +/* fifoaddr */ +#define D64_FA_OFF_MASK 0xffff /* offset */ +#define D64_FA_SEL_MASK 0xf0000 /* select */ +#define D64_FA_SEL_SHIFT 16 +#define D64_FA_SEL_XDD 0x00000 /* transmit dma data */ +#define D64_FA_SEL_XDP 0x10000 /* transmit dma pointers */ +#define D64_FA_SEL_RDD 0x40000 /* receive dma data */ +#define D64_FA_SEL_RDP 0x50000 /* receive dma pointers */ +#define D64_FA_SEL_XFD 0x80000 /* transmit fifo data */ +#define D64_FA_SEL_XFP 0x90000 /* transmit fifo pointers */ +#define D64_FA_SEL_RFD 0xc0000 /* receive fifo data */ +#define D64_FA_SEL_RFP 0xd0000 /* receive fifo pointers */ +#define D64_FA_SEL_RSD 0xe0000 /* receive frame status data */ +#define D64_FA_SEL_RSP 0xf0000 /* receive frame status pointers */ + +/* descriptor control flags 1 */ +#define D64_CTRL_COREFLAGS 0x0ff00000 /* core specific flags */ +#define D64_CTRL1_EOT ((u32)1 << 28) /* end of descriptor table */ +#define D64_CTRL1_IOC ((u32)1 << 29) /* interrupt on completion */ +#define D64_CTRL1_EOF ((u32)1 << 30) /* end of frame */ +#define D64_CTRL1_SOF ((u32)1 << 31) /* start of frame */ + +/* descriptor control flags 2 */ +#define D64_CTRL2_BC_MASK 0x00007fff /* buffer byte count. real data len must <= 16KB */ +#define D64_CTRL2_AE 0x00030000 /* address extension bits */ +#define D64_CTRL2_AE_SHIFT 16 +#define D64_CTRL2_PARITY 0x00040000 /* parity bit */ + +/* control flags in the range [27:20] are core-specific and not defined here */ +#define D64_CTRL_CORE_MASK 0x0ff00000 + +#define D64_RX_FRM_STS_LEN 0x0000ffff /* frame length mask */ +#define D64_RX_FRM_STS_OVFL 0x00800000 /* RxOverFlow */ +#define D64_RX_FRM_STS_DSCRCNT 0x0f000000 /* no. of descriptors used - 1 */ +#define D64_RX_FRM_STS_DATATYPE 0xf0000000 /* core-dependent data type */ + +/* receive frame status */ +typedef volatile struct { + u16 len; + u16 flags; +} dma_rxh_t; + +#endif /* _sbhnddma_h_ */ diff --git a/drivers/staging/brcm80211/include/sbhnddma.h b/drivers/staging/brcm80211/include/sbhnddma.h deleted file mode 100644 index 08cb7f6e0d85..000000000000 --- a/drivers/staging/brcm80211/include/sbhnddma.h +++ /dev/null @@ -1,315 +0,0 @@ -/* - * Copyright (c) 2010 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _sbhnddma_h_ -#define _sbhnddma_h_ - -/* DMA structure: - * support two DMA engines: 32 bits address or 64 bit addressing - * basic DMA register set is per channel(transmit or receive) - * a pair of channels is defined for convenience - */ - -/* 32 bits addressing */ - -/* dma registers per channel(xmt or rcv) */ -typedef volatile struct { - u32 control; /* enable, et al */ - u32 addr; /* descriptor ring base address (4K aligned) */ - u32 ptr; /* last descriptor posted to chip */ - u32 status; /* current active descriptor, et al */ -} dma32regs_t; - -typedef volatile struct { - dma32regs_t xmt; /* dma tx channel */ - dma32regs_t rcv; /* dma rx channel */ -} dma32regp_t; - -typedef volatile struct { /* diag access */ - u32 fifoaddr; /* diag address */ - u32 fifodatalow; /* low 32bits of data */ - u32 fifodatahigh; /* high 32bits of data */ - u32 pad; /* reserved */ -} dma32diag_t; - -/* - * DMA Descriptor - * Descriptors are only read by the hardware, never written back. - */ -typedef volatile struct { - u32 ctrl; /* misc control bits & bufcount */ - u32 addr; /* data buffer address */ -} dma32dd_t; - -/* - * Each descriptor ring must be 4096byte aligned, and fit within a single 4096byte page. - */ -#define D32RINGALIGN_BITS 12 -#define D32MAXRINGSZ (1 << D32RINGALIGN_BITS) -#define D32RINGALIGN (1 << D32RINGALIGN_BITS) - -#define D32MAXDD (D32MAXRINGSZ / sizeof (dma32dd_t)) - -/* transmit channel control */ -#define XC_XE ((u32)1 << 0) /* transmit enable */ -#define XC_SE ((u32)1 << 1) /* transmit suspend request */ -#define XC_LE ((u32)1 << 2) /* loopback enable */ -#define XC_FL ((u32)1 << 4) /* flush request */ -#define XC_PD ((u32)1 << 11) /* parity check disable */ -#define XC_AE ((u32)3 << 16) /* address extension bits */ -#define XC_AE_SHIFT 16 - -/* transmit descriptor table pointer */ -#define XP_LD_MASK 0xfff /* last valid descriptor */ - -/* transmit channel status */ -#define XS_CD_MASK 0x0fff /* current descriptor pointer */ -#define XS_XS_MASK 0xf000 /* transmit state */ -#define XS_XS_SHIFT 12 -#define XS_XS_DISABLED 0x0000 /* disabled */ -#define XS_XS_ACTIVE 0x1000 /* active */ -#define XS_XS_IDLE 0x2000 /* idle wait */ -#define XS_XS_STOPPED 0x3000 /* stopped */ -#define XS_XS_SUSP 0x4000 /* suspend pending */ -#define XS_XE_MASK 0xf0000 /* transmit errors */ -#define XS_XE_SHIFT 16 -#define XS_XE_NOERR 0x00000 /* no error */ -#define XS_XE_DPE 0x10000 /* descriptor protocol error */ -#define XS_XE_DFU 0x20000 /* data fifo underrun */ -#define XS_XE_BEBR 0x30000 /* bus error on buffer read */ -#define XS_XE_BEDA 0x40000 /* bus error on descriptor access */ -#define XS_AD_MASK 0xfff00000 /* active descriptor */ -#define XS_AD_SHIFT 20 - -/* receive channel control */ -#define RC_RE ((u32)1 << 0) /* receive enable */ -#define RC_RO_MASK 0xfe /* receive frame offset */ -#define RC_RO_SHIFT 1 -#define RC_FM ((u32)1 << 8) /* direct fifo receive (pio) mode */ -#define RC_SH ((u32)1 << 9) /* separate rx header descriptor enable */ -#define RC_OC ((u32)1 << 10) /* overflow continue */ -#define RC_PD ((u32)1 << 11) /* parity check disable */ -#define RC_AE ((u32)3 << 16) /* address extension bits */ -#define RC_AE_SHIFT 16 - -/* receive descriptor table pointer */ -#define RP_LD_MASK 0xfff /* last valid descriptor */ - -/* receive channel status */ -#define RS_CD_MASK 0x0fff /* current descriptor pointer */ -#define RS_RS_MASK 0xf000 /* receive state */ -#define RS_RS_SHIFT 12 -#define RS_RS_DISABLED 0x0000 /* disabled */ -#define RS_RS_ACTIVE 0x1000 /* active */ -#define RS_RS_IDLE 0x2000 /* idle wait */ -#define RS_RS_STOPPED 0x3000 /* reserved */ -#define RS_RE_MASK 0xf0000 /* receive errors */ -#define RS_RE_SHIFT 16 -#define RS_RE_NOERR 0x00000 /* no error */ -#define RS_RE_DPE 0x10000 /* descriptor protocol error */ -#define RS_RE_DFO 0x20000 /* data fifo overflow */ -#define RS_RE_BEBW 0x30000 /* bus error on buffer write */ -#define RS_RE_BEDA 0x40000 /* bus error on descriptor access */ -#define RS_AD_MASK 0xfff00000 /* active descriptor */ -#define RS_AD_SHIFT 20 - -/* fifoaddr */ -#define FA_OFF_MASK 0xffff /* offset */ -#define FA_SEL_MASK 0xf0000 /* select */ -#define FA_SEL_SHIFT 16 -#define FA_SEL_XDD 0x00000 /* transmit dma data */ -#define FA_SEL_XDP 0x10000 /* transmit dma pointers */ -#define FA_SEL_RDD 0x40000 /* receive dma data */ -#define FA_SEL_RDP 0x50000 /* receive dma pointers */ -#define FA_SEL_XFD 0x80000 /* transmit fifo data */ -#define FA_SEL_XFP 0x90000 /* transmit fifo pointers */ -#define FA_SEL_RFD 0xc0000 /* receive fifo data */ -#define FA_SEL_RFP 0xd0000 /* receive fifo pointers */ -#define FA_SEL_RSD 0xe0000 /* receive frame status data */ -#define FA_SEL_RSP 0xf0000 /* receive frame status pointers */ - -/* descriptor control flags */ -#define CTRL_BC_MASK 0x00001fff /* buffer byte count, real data len must <= 4KB */ -#define CTRL_AE ((u32)3 << 16) /* address extension bits */ -#define CTRL_AE_SHIFT 16 -#define CTRL_PARITY ((u32)3 << 18) /* parity bit */ -#define CTRL_EOT ((u32)1 << 28) /* end of descriptor table */ -#define CTRL_IOC ((u32)1 << 29) /* interrupt on completion */ -#define CTRL_EOF ((u32)1 << 30) /* end of frame */ -#define CTRL_SOF ((u32)1 << 31) /* start of frame */ - -/* control flags in the range [27:20] are core-specific and not defined here */ -#define CTRL_CORE_MASK 0x0ff00000 - -/* 64 bits addressing */ - -/* dma registers per channel(xmt or rcv) */ -typedef volatile struct { - u32 control; /* enable, et al */ - u32 ptr; /* last descriptor posted to chip */ - u32 addrlow; /* descriptor ring base address low 32-bits (8K aligned) */ - u32 addrhigh; /* descriptor ring base address bits 63:32 (8K aligned) */ - u32 status0; /* current descriptor, xmt state */ - u32 status1; /* active descriptor, xmt error */ -} dma64regs_t; - -typedef volatile struct { - dma64regs_t tx; /* dma64 tx channel */ - dma64regs_t rx; /* dma64 rx channel */ -} dma64regp_t; - -typedef volatile struct { /* diag access */ - u32 fifoaddr; /* diag address */ - u32 fifodatalow; /* low 32bits of data */ - u32 fifodatahigh; /* high 32bits of data */ - u32 pad; /* reserved */ -} dma64diag_t; - -/* - * DMA Descriptor - * Descriptors are only read by the hardware, never written back. - */ -typedef volatile struct { - u32 ctrl1; /* misc control bits & bufcount */ - u32 ctrl2; /* buffer count and address extension */ - u32 addrlow; /* memory address of the date buffer, bits 31:0 */ - u32 addrhigh; /* memory address of the date buffer, bits 63:32 */ -} dma64dd_t; - -/* - * Each descriptor ring must be 8kB aligned, and fit within a contiguous 8kB physical address. - */ -#define D64RINGALIGN_BITS 13 -#define D64MAXRINGSZ (1 << D64RINGALIGN_BITS) -#define D64RINGALIGN (1 << D64RINGALIGN_BITS) - -#define D64MAXDD (D64MAXRINGSZ / sizeof (dma64dd_t)) - -/* transmit channel control */ -#define D64_XC_XE 0x00000001 /* transmit enable */ -#define D64_XC_SE 0x00000002 /* transmit suspend request */ -#define D64_XC_LE 0x00000004 /* loopback enable */ -#define D64_XC_FL 0x00000010 /* flush request */ -#define D64_XC_PD 0x00000800 /* parity check disable */ -#define D64_XC_AE 0x00030000 /* address extension bits */ -#define D64_XC_AE_SHIFT 16 - -/* transmit descriptor table pointer */ -#define D64_XP_LD_MASK 0x00000fff /* last valid descriptor */ - -/* transmit channel status */ -#define D64_XS0_CD_MASK 0x00001fff /* current descriptor pointer */ -#define D64_XS0_XS_MASK 0xf0000000 /* transmit state */ -#define D64_XS0_XS_SHIFT 28 -#define D64_XS0_XS_DISABLED 0x00000000 /* disabled */ -#define D64_XS0_XS_ACTIVE 0x10000000 /* active */ -#define D64_XS0_XS_IDLE 0x20000000 /* idle wait */ -#define D64_XS0_XS_STOPPED 0x30000000 /* stopped */ -#define D64_XS0_XS_SUSP 0x40000000 /* suspend pending */ - -#define D64_XS1_AD_MASK 0x00001fff /* active descriptor */ -#define D64_XS1_XE_MASK 0xf0000000 /* transmit errors */ -#define D64_XS1_XE_SHIFT 28 -#define D64_XS1_XE_NOERR 0x00000000 /* no error */ -#define D64_XS1_XE_DPE 0x10000000 /* descriptor protocol error */ -#define D64_XS1_XE_DFU 0x20000000 /* data fifo underrun */ -#define D64_XS1_XE_DTE 0x30000000 /* data transfer error */ -#define D64_XS1_XE_DESRE 0x40000000 /* descriptor read error */ -#define D64_XS1_XE_COREE 0x50000000 /* core error */ - -/* receive channel control */ -#define D64_RC_RE 0x00000001 /* receive enable */ -#define D64_RC_RO_MASK 0x000000fe /* receive frame offset */ -#define D64_RC_RO_SHIFT 1 -#define D64_RC_FM 0x00000100 /* direct fifo receive (pio) mode */ -#define D64_RC_SH 0x00000200 /* separate rx header descriptor enable */ -#define D64_RC_OC 0x00000400 /* overflow continue */ -#define D64_RC_PD 0x00000800 /* parity check disable */ -#define D64_RC_AE 0x00030000 /* address extension bits */ -#define D64_RC_AE_SHIFT 16 - -/* flags for dma controller */ -#define DMA_CTRL_PEN (1 << 0) /* partity enable */ -#define DMA_CTRL_ROC (1 << 1) /* rx overflow continue */ -#define DMA_CTRL_RXMULTI (1 << 2) /* allow rx scatter to multiple descriptors */ -#define DMA_CTRL_UNFRAMED (1 << 3) /* Unframed Rx/Tx data */ - -/* receive descriptor table pointer */ -#define D64_RP_LD_MASK 0x00000fff /* last valid descriptor */ - -/* receive channel status */ -#define D64_RS0_CD_MASK 0x00001fff /* current descriptor pointer */ -#define D64_RS0_RS_MASK 0xf0000000 /* receive state */ -#define D64_RS0_RS_SHIFT 28 -#define D64_RS0_RS_DISABLED 0x00000000 /* disabled */ -#define D64_RS0_RS_ACTIVE 0x10000000 /* active */ -#define D64_RS0_RS_IDLE 0x20000000 /* idle wait */ -#define D64_RS0_RS_STOPPED 0x30000000 /* stopped */ -#define D64_RS0_RS_SUSP 0x40000000 /* suspend pending */ - -#define D64_RS1_AD_MASK 0x0001ffff /* active descriptor */ -#define D64_RS1_RE_MASK 0xf0000000 /* receive errors */ -#define D64_RS1_RE_SHIFT 28 -#define D64_RS1_RE_NOERR 0x00000000 /* no error */ -#define D64_RS1_RE_DPO 0x10000000 /* descriptor protocol error */ -#define D64_RS1_RE_DFU 0x20000000 /* data fifo overflow */ -#define D64_RS1_RE_DTE 0x30000000 /* data transfer error */ -#define D64_RS1_RE_DESRE 0x40000000 /* descriptor read error */ -#define D64_RS1_RE_COREE 0x50000000 /* core error */ - -/* fifoaddr */ -#define D64_FA_OFF_MASK 0xffff /* offset */ -#define D64_FA_SEL_MASK 0xf0000 /* select */ -#define D64_FA_SEL_SHIFT 16 -#define D64_FA_SEL_XDD 0x00000 /* transmit dma data */ -#define D64_FA_SEL_XDP 0x10000 /* transmit dma pointers */ -#define D64_FA_SEL_RDD 0x40000 /* receive dma data */ -#define D64_FA_SEL_RDP 0x50000 /* receive dma pointers */ -#define D64_FA_SEL_XFD 0x80000 /* transmit fifo data */ -#define D64_FA_SEL_XFP 0x90000 /* transmit fifo pointers */ -#define D64_FA_SEL_RFD 0xc0000 /* receive fifo data */ -#define D64_FA_SEL_RFP 0xd0000 /* receive fifo pointers */ -#define D64_FA_SEL_RSD 0xe0000 /* receive frame status data */ -#define D64_FA_SEL_RSP 0xf0000 /* receive frame status pointers */ - -/* descriptor control flags 1 */ -#define D64_CTRL_COREFLAGS 0x0ff00000 /* core specific flags */ -#define D64_CTRL1_EOT ((u32)1 << 28) /* end of descriptor table */ -#define D64_CTRL1_IOC ((u32)1 << 29) /* interrupt on completion */ -#define D64_CTRL1_EOF ((u32)1 << 30) /* end of frame */ -#define D64_CTRL1_SOF ((u32)1 << 31) /* start of frame */ - -/* descriptor control flags 2 */ -#define D64_CTRL2_BC_MASK 0x00007fff /* buffer byte count. real data len must <= 16KB */ -#define D64_CTRL2_AE 0x00030000 /* address extension bits */ -#define D64_CTRL2_AE_SHIFT 16 -#define D64_CTRL2_PARITY 0x00040000 /* parity bit */ - -/* control flags in the range [27:20] are core-specific and not defined here */ -#define D64_CTRL_CORE_MASK 0x0ff00000 - -#define D64_RX_FRM_STS_LEN 0x0000ffff /* frame length mask */ -#define D64_RX_FRM_STS_OVFL 0x00800000 /* RxOverFlow */ -#define D64_RX_FRM_STS_DSCRCNT 0x0f000000 /* no. of descriptors used - 1 */ -#define D64_RX_FRM_STS_DATATYPE 0xf0000000 /* core-dependent data type */ - -/* receive frame status */ -typedef volatile struct { - u16 len; - u16 flags; -} dma_rxh_t; - -#endif /* _sbhnddma_h_ */