S: Maintained
ACPI
-P: Len Brown
-M: len.brown@intel.com
+P: Andi Kleen
+M: ak@linux.intel.com
M: lenb@kernel.org
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
ACPI FAN DRIVER
-P: Len Brown
-M: len.brown@intel.com
+P: Zhang Rui
+M: rui.zhang@intel.com
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
S: Supported
ACPI THERMAL DRIVER
-P: Len Brown
-M: len.brown@intel.com
+P: Zhang Rui
+M: rui.zhang@intel.com
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
ACPI VIDEO DRIVER
-P: Rui Zhang
+P: Zhang Rui
M: rui.zhang@intel.com
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Maintained
ALCHEMY AU1XX0 MMC DRIVER
- S: Orphan
+ P: Manuel Lauss
+ M: manuel.lauss@gmail.com
+ S: Maintained
ALI1563 I2C DRIVER
P: Rudolf Marek
L: pcihpd-discuss@lists.sourceforge.net
S: Supported
+COMPAL LAPTOP SUPPORT
+P: Cezary Jackiewicz
+M: cezary.jackiewicz@gmail.com
+S: Maintained
+
COMPUTONE INTELLIPORT MULTIPORT CARD
P: Michael H. Warfield
M: mhw@wittsend.com
L: linux-kernel@vger.kernel.org
S: Maintained
+FREESCALE I2C CPM DRIVER
+P: Jochen Friedrich
+M: jochen@scram.de
+L: linuxppc-dev@ozlabs.org
+L: i2c@lm-sensors.org
+S: Maintained
+
FREESCALE SOC FS_ENET DRIVER
P: Pantelis Antoniou
M: pantelis.antoniou@gmail.com
W: ftp://ftp.openlinux.org/pub/people/hch/vxfs
S: Maintained
+FTRACE
+P: Steven Rostedt
+M: srostedt@redhat.com
+S: Maintained
+
FUJITSU FR-V (FRV) PORT
P: David Howells
M: dhowells@redhat.com
S: Maintained
+FUJITSU LAPTOP EXTRAS
+P: Jonathan Woithe
+M: jwoithe@physics.adelaide.edu.au
+L: linux-acpi@vger.kernel.org
+S: Maintained
+
FUSE: FILESYSTEM IN USERSPACE
P: Miklos Szeredi
M: miklos@szeredi.hu
W: http://www.linux-mtd.infradead.org/doc/jffs2.html
S: Maintained
+UBI FILE SYSTEM (UBIFS)
+P: Artem Bityutskiy
+M: dedekind@infradead.org
+P: Adrian Hunter
+M: ext-adrian.hunter@nokia.com
+L: linux-mtd@lists.infradead.org
+T: git git://git.infradead.org/~dedekind/ubifs-2.6.git
+W: http://www.linux-mtd.infradead.org/doc/ubifs.html
+S: Maintained
+
JFS FILESYSTEM
P: Dave Kleikamp
M: shaggy@austin.ibm.com
L: linuxppc-dev@ozlabs.org
S: Maintained
-LINUX FOR POWERPC EMBEDDED MPC52XX
+LINUX FOR POWERPC EMBEDDED MPC5XXX
P: Sylvain Munaut
M: tnt@246tNt.com
P: Grant Likely
M: grant.likely@secretlab.ca
-W: http://www.246tNt.com/mpc52xx/
-W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
S: Maintained
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+ S3C24XX SD/MMC Driver
+ P: Ben Dooks
+ M: ben-linux@fluff.org
+ L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
+ L: linux-kernel@vger.kernel.org
+ S: Supported
+
SAA7146 VIDEO4LINUX-2 DRIVER
P: Michael Hunold
M: michael@mihu.de
M: jim.cromie@gmail.com
S: Maintained
+ SDRICOH_CS MMC/SD HOST CONTROLLER INTERFACE DRIVER
+ P: Sascha Sommer
+ M: saschasommer@freenet.de
+ L: sdricohcs-devel@lists.sourceforge.net (subscribers-only)
+ S: Maintained
+
SECURITY CONTACT
P: Security Officers
M: security@kernel.org
/*
* linux/drivers/mmc/core/sdio_io.c
*
- * Copyright 2007 Pierre Ossman
+ * Copyright 2007-2008 Pierre Ossman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
if (ret)
goto err;
- /*
- * FIXME: This should timeout based on information in the CIS,
- * but we don't have card to parse that yet.
- */
- timeout = jiffies + HZ;
+ timeout = jiffies + msecs_to_jiffies(func->enable_timeout);
while (1) {
ret = mmc_io_rw_direct(func->card, 0, 0, SDIO_CCCR_IORx, 0, ®);
return -EINVAL;
if (blksz == 0) {
- blksz = min(min(
- func->max_blksize,
- func->card->host->max_blk_size),
- 512u);
+ blksz = min(func->max_blksize, func->card->host->max_blk_size);
+ blksz = min(blksz, 512u);
}
ret = mmc_io_rw_direct(func->card, 1, 0,
func->cur_blksize = blksz;
return 0;
}
-
EXPORT_SYMBOL_GPL(sdio_set_block_size);
+ /*
+ * Calculate the maximum byte mode transfer size
+ */
+ static inline unsigned int sdio_max_byte_size(struct sdio_func *func)
+ {
+ unsigned mval = min(func->card->host->max_seg_size,
+ func->card->host->max_blk_size);
+ mval = min(mval, func->max_blksize);
+ return min(mval, 512u); /* maximum size for byte mode */
+ }
+
+ /**
+ * sdio_align_size - pads a transfer size to a more optimal value
+ * @func: SDIO function
+ * @sz: original transfer size
+ *
+ * Pads the original data size with a number of extra bytes in
+ * order to avoid controller bugs and/or performance hits
+ * (e.g. some controllers revert to PIO for certain sizes).
+ *
+ * If possible, it will also adjust the size so that it can be
+ * handled in just a single request.
+ *
+ * Returns the improved size, which might be unmodified.
+ */
+ unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz)
+ {
+ unsigned int orig_sz;
+ unsigned int blk_sz, byte_sz;
+ unsigned chunk_sz;
+
+ orig_sz = sz;
+
+ /*
+ * Do a first check with the controller, in case it
+ * wants to increase the size up to a point where it
+ * might need more than one block.
+ */
+ sz = mmc_align_data_size(func->card, sz);
+
+ /*
+ * If we can still do this with just a byte transfer, then
+ * we're done.
+ */
+ if (sz <= sdio_max_byte_size(func))
+ return sz;
+
+ if (func->card->cccr.multi_block) {
+ /*
+ * Check if the transfer is already block aligned
+ */
+ if ((sz % func->cur_blksize) == 0)
+ return sz;
+
+ /*
+ * Realign it so that it can be done with one request,
+ * and recheck if the controller still likes it.
+ */
+ blk_sz = ((sz + func->cur_blksize - 1) /
+ func->cur_blksize) * func->cur_blksize;
+ blk_sz = mmc_align_data_size(func->card, blk_sz);
+
+ /*
+ * This value is only good if it is still just
+ * one request.
+ */
+ if ((blk_sz % func->cur_blksize) == 0)
+ return blk_sz;
+
+ /*
+ * We failed to do one request, but at least try to
+ * pad the remainder properly.
+ */
+ byte_sz = mmc_align_data_size(func->card,
+ sz % func->cur_blksize);
+ if (byte_sz <= sdio_max_byte_size(func)) {
+ blk_sz = sz / func->cur_blksize;
+ return blk_sz * func->cur_blksize + byte_sz;
+ }
+ } else {
+ /*
+ * We need multiple requests, so first check that the
+ * controller can handle the chunk size;
+ */
+ chunk_sz = mmc_align_data_size(func->card,
+ sdio_max_byte_size(func));
+ if (chunk_sz == sdio_max_byte_size(func)) {
+ /*
+ * Fix up the size of the remainder (if any)
+ */
+ byte_sz = orig_sz % chunk_sz;
+ if (byte_sz) {
+ byte_sz = mmc_align_data_size(func->card,
+ byte_sz);
+ }
+
+ return (orig_sz / chunk_sz) * chunk_sz + byte_sz;
+ }
+ }
+
+ /*
+ * The controller is simply incapable of transferring the size
+ * we want in decent manner, so just return the original size.
+ */
+ return orig_sz;
+ }
+ EXPORT_SYMBOL_GPL(sdio_align_size);
+
/* Split an arbitrarily sized data transfer into several
* IO_RW_EXTENDED commands. */
static int sdio_io_rw_ext_helper(struct sdio_func *func, int write,
int ret;
/* Do the bulk of the transfer using block mode (if supported). */
- if (func->card->cccr.multi_block) {
+ if (func->card->cccr.multi_block && (size > sdio_max_byte_size(func))) {
/* Blocks per command is limited by host count, host transfer
* size (we only use a single sg entry) and the maximum for
* IO_RW_EXTENDED of 511 blocks. */
- max_blocks = min(min(
- func->card->host->max_blk_count,
- func->card->host->max_seg_size / func->cur_blksize),
- 511u);
+ max_blocks = min(func->card->host->max_blk_count,
+ func->card->host->max_seg_size / func->cur_blksize);
+ max_blocks = min(max_blocks, 511u);
while (remainder > func->cur_blksize) {
unsigned blocks;
/* Write the remainder using byte mode. */
while (remainder > 0) {
- size = remainder;
- if (size > func->cur_blksize)
- size = func->cur_blksize;
- if (size > 512)
- size = 512; /* maximum size for byte mode */
+ size = min(remainder, sdio_max_byte_size(func));
ret = mmc_io_rw_extended(func->card, write, func->num, addr,
incr_addr, buf, 1, size);
* function. If there is a problem reading the address, 0xff
* is returned and @err_ret will contain the error code.
*/
- unsigned char sdio_readb(struct sdio_func *func, unsigned int addr,
- int *err_ret)
+ u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret)
{
int ret;
- unsigned char val;
+ u8 val;
BUG_ON(!func);
* function. @err_ret will contain the status of the actual
* transfer.
*/
- void sdio_writeb(struct sdio_func *func, unsigned char b, unsigned int addr,
- int *err_ret)
+ void sdio_writeb(struct sdio_func *func, u8 b, unsigned int addr, int *err_ret)
{
int ret;
{
return sdio_io_rw_ext_helper(func, 0, addr, 0, dst, count);
}
-
EXPORT_SYMBOL_GPL(sdio_readsb);
/**
* function. If there is a problem reading the address, 0xffff
* is returned and @err_ret will contain the error code.
*/
- unsigned short sdio_readw(struct sdio_func *func, unsigned int addr,
- int *err_ret)
+ u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret)
{
int ret;
return 0xFFFF;
}
- return le16_to_cpu(*(u16*)func->tmpbuf);
+ return le16_to_cpup((__le16 *)func->tmpbuf);
}
EXPORT_SYMBOL_GPL(sdio_readw);
* function. @err_ret will contain the status of the actual
* transfer.
*/
- void sdio_writew(struct sdio_func *func, unsigned short b, unsigned int addr,
- int *err_ret)
+ void sdio_writew(struct sdio_func *func, u16 b, unsigned int addr, int *err_ret)
{
int ret;
- *(u16*)func->tmpbuf = cpu_to_le16(b);
+ *(__le16 *)func->tmpbuf = cpu_to_le16(b);
ret = sdio_memcpy_toio(func, addr, func->tmpbuf, 2);
if (err_ret)
* 0xffffffff is returned and @err_ret will contain the error
* code.
*/
- unsigned long sdio_readl(struct sdio_func *func, unsigned int addr,
- int *err_ret)
+ u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret)
{
int ret;
return 0xFFFFFFFF;
}
- return le32_to_cpu(*(u32*)func->tmpbuf);
+ return le32_to_cpup((__le32 *)func->tmpbuf);
}
EXPORT_SYMBOL_GPL(sdio_readl);
* function. @err_ret will contain the status of the actual
* transfer.
*/
- void sdio_writel(struct sdio_func *func, unsigned long b, unsigned int addr,
- int *err_ret)
+ void sdio_writel(struct sdio_func *func, u32 b, unsigned int addr, int *err_ret)
{
int ret;
- *(u32*)func->tmpbuf = cpu_to_le32(b);
+ *(__le32 *)func->tmpbuf = cpu_to_le32(b);
ret = sdio_memcpy_toio(func, addr, func->tmpbuf, 4);
if (err_ret)
/*
* include/linux/mmc/sdio_func.h
*
- * Copyright 2007 Pierre Ossman
+ * Copyright 2007-2008 Pierre Ossman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
unsigned max_blksize; /* maximum block size */
unsigned cur_blksize; /* current block size */
+ unsigned enable_timeout; /* max enable timeout in msec */
+
unsigned int state; /* function state */
#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */
extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler);
extern int sdio_release_irq(struct sdio_func *func);
- extern unsigned char sdio_readb(struct sdio_func *func,
- unsigned int addr, int *err_ret);
- extern unsigned short sdio_readw(struct sdio_func *func,
- unsigned int addr, int *err_ret);
- extern unsigned long sdio_readl(struct sdio_func *func,
- unsigned int addr, int *err_ret);
+ extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz);
+
+ extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret);
+ extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret);
+ extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret);
extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst,
unsigned int addr, int count);
extern int sdio_readsb(struct sdio_func *func, void *dst,
unsigned int addr, int count);
- extern void sdio_writeb(struct sdio_func *func, unsigned char b,
+ extern void sdio_writeb(struct sdio_func *func, u8 b,
unsigned int addr, int *err_ret);
- extern void sdio_writew(struct sdio_func *func, unsigned short b,
+ extern void sdio_writew(struct sdio_func *func, u16 b,
unsigned int addr, int *err_ret);
- extern void sdio_writel(struct sdio_func *func, unsigned long b,
+ extern void sdio_writel(struct sdio_func *func, u32 b,
unsigned int addr, int *err_ret);
extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff