From: Arend van Spriel Date: Tue, 27 May 2014 10:56:17 +0000 (+0200) Subject: brcmfmac: rename nvram.[ch] for upcoming firmware handling functions X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dabedab98317e8915eefd8485921fb571b26cdd1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git brcmfmac: rename nvram.[ch] for upcoming firmware handling functions The firmware processing will be modified to use asynchronous request firmware api. In preparation this patch is simple rename of source and header file to which the functionality will be added. Reviewed-by: Daniel (Deognyoun) Kim Reviewed-by: Franky Lin Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/brcm80211/brcmfmac/Makefile index 1d2ceac3a221..98e67c18f276 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/Makefile +++ b/drivers/net/wireless/brcm80211/brcmfmac/Makefile @@ -33,7 +33,7 @@ brcmfmac-objs += \ bcdc.o \ dhd_common.o \ dhd_linux.o \ - nvram.o \ + firmware.o \ btcoex.o brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \ dhd_sdio.o \ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index 494371ccf0f7..010e1bd521f0 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -42,7 +42,7 @@ #include #include "sdio_host.h" #include "chip.h" -#include "nvram.h" +#include "firmware.h" #define DCMD_RESP_TIMEOUT 2000 /* In milli second */ @@ -3287,7 +3287,7 @@ static int brcmf_sdio_download_nvram(struct brcmf_sdio *bus, brcmf_dbg(TRACE, "Enter\n"); - vars = brcmf_nvram_strip(nv, &varsz); + vars = brcmf_fw_nvram_strip(nv, &varsz); if (vars == NULL) return -EINVAL; @@ -3300,7 +3300,7 @@ static int brcmf_sdio_download_nvram(struct brcmf_sdio *bus, else if (!brcmf_sdio_verifymemory(bus->sdiodev, address, vars, varsz)) err = -EIO; - brcmf_nvram_free(vars); + brcmf_fw_nvram_free(vars); return err; } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c new file mode 100644 index 000000000000..ff5b86733d5a --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c @@ -0,0 +1,226 @@ +/* + * Copyright (c) 2013 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 "dhd_dbg.h" +#include "firmware.h" + +enum nvram_parser_state { + IDLE, + KEY, + VALUE, + COMMENT, + END +}; + +/** + * struct nvram_parser - internal info for parser. + * + * @state: current parser state. + * @fwnv: input buffer being parsed. + * @nvram: output buffer with parse result. + * @nvram_len: lenght of parse result. + * @line: current line. + * @column: current column in line. + * @pos: byte offset in input buffer. + * @entry: start position of key,value entry. + */ +struct nvram_parser { + enum nvram_parser_state state; + const struct firmware *fwnv; + u8 *nvram; + u32 nvram_len; + u32 line; + u32 column; + u32 pos; + u32 entry; +}; + +static bool is_nvram_char(char c) +{ + /* comment marker excluded */ + if (c == '#') + return false; + + /* key and value may have any other readable character */ + return (c > 0x20 && c < 0x7f); +} + +static bool is_whitespace(char c) +{ + return (c == ' ' || c == '\r' || c == '\n' || c == '\t'); +} + +static enum nvram_parser_state brcmf_nvram_handle_idle(struct nvram_parser *nvp) +{ + char c; + + c = nvp->fwnv->data[nvp->pos]; + if (c == '\n') + return COMMENT; + if (is_whitespace(c)) + goto proceed; + if (c == '#') + return COMMENT; + if (is_nvram_char(c)) { + nvp->entry = nvp->pos; + return KEY; + } + brcmf_dbg(INFO, "warning: ln=%d:col=%d: ignoring invalid character\n", + nvp->line, nvp->column); +proceed: + nvp->column++; + nvp->pos++; + return IDLE; +} + +static enum nvram_parser_state brcmf_nvram_handle_key(struct nvram_parser *nvp) +{ + enum nvram_parser_state st = nvp->state; + char c; + + c = nvp->fwnv->data[nvp->pos]; + if (c == '=') { + st = VALUE; + } else if (!is_nvram_char(c)) { + brcmf_dbg(INFO, "warning: ln=%d:col=%d: '=' expected, skip invalid key entry\n", + nvp->line, nvp->column); + return COMMENT; + } + + nvp->column++; + nvp->pos++; + return st; +} + +static enum nvram_parser_state +brcmf_nvram_handle_value(struct nvram_parser *nvp) +{ + char c; + char *skv; + char *ekv; + u32 cplen; + + c = nvp->fwnv->data[nvp->pos]; + if (!is_nvram_char(c)) { + /* key,value pair complete */ + ekv = (u8 *)&nvp->fwnv->data[nvp->pos]; + skv = (u8 *)&nvp->fwnv->data[nvp->entry]; + cplen = ekv - skv; + /* copy to output buffer */ + memcpy(&nvp->nvram[nvp->nvram_len], skv, cplen); + nvp->nvram_len += cplen; + nvp->nvram[nvp->nvram_len] = '\0'; + nvp->nvram_len++; + return IDLE; + } + nvp->pos++; + nvp->column++; + return VALUE; +} + +static enum nvram_parser_state +brcmf_nvram_handle_comment(struct nvram_parser *nvp) +{ + char *eol, *sol; + + sol = (char *)&nvp->fwnv->data[nvp->pos]; + eol = strchr(sol, '\n'); + if (eol == NULL) + return END; + + /* eat all moving to next line */ + nvp->line++; + nvp->column = 1; + nvp->pos += (eol - sol) + 1; + return IDLE; +} + +static enum nvram_parser_state brcmf_nvram_handle_end(struct nvram_parser *nvp) +{ + /* final state */ + return END; +} + +static enum nvram_parser_state +(*nv_parser_states[])(struct nvram_parser *nvp) = { + brcmf_nvram_handle_idle, + brcmf_nvram_handle_key, + brcmf_nvram_handle_value, + brcmf_nvram_handle_comment, + brcmf_nvram_handle_end +}; + +static int brcmf_init_nvram_parser(struct nvram_parser *nvp, + const struct firmware *nv) +{ + memset(nvp, 0, sizeof(*nvp)); + nvp->fwnv = nv; + /* Alloc for extra 0 byte + roundup by 4 + length field */ + nvp->nvram = kzalloc(nv->size + 1 + 3 + sizeof(u32), GFP_KERNEL); + if (!nvp->nvram) + return -ENOMEM; + + nvp->line = 1; + nvp->column = 1; + return 0; +} + +/* brcmf_nvram_strip :Takes a buffer of "=\n" lines read from a fil + * and ending in a NUL. Removes carriage returns, empty lines, comment lines, + * and converts newlines to NULs. Shortens buffer as needed and pads with NULs. + * End of buffer is completed with token identifying length of buffer. + */ +void *brcmf_fw_nvram_strip(const struct firmware *nv, u32 *new_length) +{ + struct nvram_parser nvp; + u32 pad; + u32 token; + __le32 token_le; + + if (brcmf_init_nvram_parser(&nvp, nv) < 0) + return NULL; + + while (nvp.pos < nv->size) { + nvp.state = nv_parser_states[nvp.state](&nvp); + if (nvp.state == END) + break; + } + pad = nvp.nvram_len; + *new_length = roundup(nvp.nvram_len + 1, 4); + while (pad != *new_length) { + nvp.nvram[pad] = 0; + pad++; + } + + token = *new_length / 4; + token = (~token << 16) | (token & 0x0000FFFF); + token_le = cpu_to_le32(token); + + memcpy(&nvp.nvram[*new_length], &token_le, sizeof(token_le)); + *new_length += sizeof(token_le); + + return nvp.nvram; +} + +void brcmf_fw_nvram_free(void *nvram) +{ + kfree(nvram); +} + diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/brcm80211/brcmfmac/firmware.h new file mode 100644 index 000000000000..127633bc242d --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2013 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 BRCMFMAC_FIRMWARE_H +#define BRCMFMAC_FIRMWARE_H + + +void *brcmf_fw_nvram_strip(const struct firmware *nv, u32 *new_length); +void brcmf_fw_nvram_free(void *nvram); + + +#endif /* BRCMFMAC_FIRMWARE_H */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/nvram.c b/drivers/net/wireless/brcm80211/brcmfmac/nvram.c deleted file mode 100644 index 5c450d11dbc9..000000000000 --- a/drivers/net/wireless/brcm80211/brcmfmac/nvram.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Copyright (c) 2013 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 "dhd_dbg.h" -#include "nvram.h" - -enum nvram_parser_state { - IDLE, - KEY, - VALUE, - COMMENT, - END -}; - -/** - * struct nvram_parser - internal info for parser. - * - * @state: current parser state. - * @fwnv: input buffer being parsed. - * @nvram: output buffer with parse result. - * @nvram_len: lenght of parse result. - * @line: current line. - * @column: current column in line. - * @pos: byte offset in input buffer. - * @entry: start position of key,value entry. - */ -struct nvram_parser { - enum nvram_parser_state state; - const struct firmware *fwnv; - u8 *nvram; - u32 nvram_len; - u32 line; - u32 column; - u32 pos; - u32 entry; -}; - -static bool is_nvram_char(char c) -{ - /* comment marker excluded */ - if (c == '#') - return false; - - /* key and value may have any other readable character */ - return (c > 0x20 && c < 0x7f); -} - -static bool is_whitespace(char c) -{ - return (c == ' ' || c == '\r' || c == '\n' || c == '\t'); -} - -static enum nvram_parser_state brcmf_nvram_handle_idle(struct nvram_parser *nvp) -{ - char c; - - c = nvp->fwnv->data[nvp->pos]; - if (c == '\n') - return COMMENT; - if (is_whitespace(c)) - goto proceed; - if (c == '#') - return COMMENT; - if (is_nvram_char(c)) { - nvp->entry = nvp->pos; - return KEY; - } - brcmf_dbg(INFO, "warning: ln=%d:col=%d: ignoring invalid character\n", - nvp->line, nvp->column); -proceed: - nvp->column++; - nvp->pos++; - return IDLE; -} - -static enum nvram_parser_state brcmf_nvram_handle_key(struct nvram_parser *nvp) -{ - enum nvram_parser_state st = nvp->state; - char c; - - c = nvp->fwnv->data[nvp->pos]; - if (c == '=') { - st = VALUE; - } else if (!is_nvram_char(c)) { - brcmf_dbg(INFO, "warning: ln=%d:col=%d: '=' expected, skip invalid key entry\n", - nvp->line, nvp->column); - return COMMENT; - } - - nvp->column++; - nvp->pos++; - return st; -} - -static enum nvram_parser_state -brcmf_nvram_handle_value(struct nvram_parser *nvp) -{ - char c; - char *skv; - char *ekv; - u32 cplen; - - c = nvp->fwnv->data[nvp->pos]; - if (!is_nvram_char(c)) { - /* key,value pair complete */ - ekv = (u8 *)&nvp->fwnv->data[nvp->pos]; - skv = (u8 *)&nvp->fwnv->data[nvp->entry]; - cplen = ekv - skv; - /* copy to output buffer */ - memcpy(&nvp->nvram[nvp->nvram_len], skv, cplen); - nvp->nvram_len += cplen; - nvp->nvram[nvp->nvram_len] = '\0'; - nvp->nvram_len++; - return IDLE; - } - nvp->pos++; - nvp->column++; - return VALUE; -} - -static enum nvram_parser_state -brcmf_nvram_handle_comment(struct nvram_parser *nvp) -{ - char *eol, *sol; - - sol = (char *)&nvp->fwnv->data[nvp->pos]; - eol = strchr(sol, '\n'); - if (eol == NULL) - return END; - - /* eat all moving to next line */ - nvp->line++; - nvp->column = 1; - nvp->pos += (eol - sol) + 1; - return IDLE; -} - -static enum nvram_parser_state brcmf_nvram_handle_end(struct nvram_parser *nvp) -{ - /* final state */ - return END; -} - -static enum nvram_parser_state -(*nv_parser_states[])(struct nvram_parser *nvp) = { - brcmf_nvram_handle_idle, - brcmf_nvram_handle_key, - brcmf_nvram_handle_value, - brcmf_nvram_handle_comment, - brcmf_nvram_handle_end -}; - -static int brcmf_init_nvram_parser(struct nvram_parser *nvp, - const struct firmware *nv) -{ - memset(nvp, 0, sizeof(*nvp)); - nvp->fwnv = nv; - /* Alloc for extra 0 byte + roundup by 4 + length field */ - nvp->nvram = kzalloc(nv->size + 1 + 3 + sizeof(u32), GFP_KERNEL); - if (!nvp->nvram) - return -ENOMEM; - - nvp->line = 1; - nvp->column = 1; - return 0; -} - -/* brcmf_nvram_strip :Takes a buffer of "=\n" lines read from a fil - * and ending in a NUL. Removes carriage returns, empty lines, comment lines, - * and converts newlines to NULs. Shortens buffer as needed and pads with NULs. - * End of buffer is completed with token identifying length of buffer. - */ -void *brcmf_nvram_strip(const struct firmware *nv, u32 *new_length) -{ - struct nvram_parser nvp; - u32 pad; - u32 token; - __le32 token_le; - - if (brcmf_init_nvram_parser(&nvp, nv) < 0) - return NULL; - - while (nvp.pos < nv->size) { - nvp.state = nv_parser_states[nvp.state](&nvp); - if (nvp.state == END) - break; - } - pad = nvp.nvram_len; - *new_length = roundup(nvp.nvram_len + 1, 4); - while (pad != *new_length) { - nvp.nvram[pad] = 0; - pad++; - } - - token = *new_length / 4; - token = (~token << 16) | (token & 0x0000FFFF); - token_le = cpu_to_le32(token); - - memcpy(&nvp.nvram[*new_length], &token_le, sizeof(token_le)); - *new_length += sizeof(token_le); - - return nvp.nvram; -} - -void brcmf_nvram_free(void *nvram) -{ - kfree(nvram); -} - diff --git a/drivers/net/wireless/brcm80211/brcmfmac/nvram.h b/drivers/net/wireless/brcm80211/brcmfmac/nvram.h deleted file mode 100644 index d454580928c9..000000000000 --- a/drivers/net/wireless/brcm80211/brcmfmac/nvram.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * Copyright (c) 2013 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 BRCMFMAC_NVRAM_H -#define BRCMFMAC_NVRAM_H - - -void *brcmf_nvram_strip(const struct firmware *nv, u32 *new_length); -void brcmf_nvram_free(void *nvram); - - -#endif /* BRCMFMAC_NVRAM_H */