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-rw-r--r--drivers/pcmcia/Kconfig9
-rw-r--r--drivers/pcmcia/Makefile4
-rw-r--r--drivers/pcmcia/at91_cf.c2
-rw-r--r--drivers/pcmcia/bfin_cf_pcmcia.c2
-rw-r--r--drivers/pcmcia/cardbus.c175
-rw-r--r--drivers/pcmcia/cistpl.c606
-rw-r--r--drivers/pcmcia/cs.c312
-rw-r--r--drivers/pcmcia/cs_internal.h89
-rw-r--r--drivers/pcmcia/ds.c333
-rw-r--r--drivers/pcmcia/electra_cf.c2
-rw-r--r--drivers/pcmcia/i82365.h4
-rw-r--r--drivers/pcmcia/m32r_cfc.c2
-rw-r--r--drivers/pcmcia/m8xx_pcmcia.c4
-rw-r--r--drivers/pcmcia/o2micro.h45
-rw-r--r--drivers/pcmcia/omap_cf.c2
-rw-r--r--drivers/pcmcia/pcmcia_ioctl.c42
-rw-r--r--drivers/pcmcia/pcmcia_resource.c169
-rw-r--r--drivers/pcmcia/rsrc_mgr.c48
-rw-r--r--drivers/pcmcia/rsrc_nonstatic.c285
-rw-r--r--drivers/pcmcia/socket_sysfs.c196
-rw-r--r--drivers/pcmcia/yenta_socket.c5
21 files changed, 1108 insertions, 1228 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 9f3adbd9f700..e8f35dac2d51 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -84,7 +84,7 @@ config YENTA
tristate "CardBus yenta-compatible bridge support"
depends on PCI
select CARDBUS if !EMBEDDED
- select PCCARD_NONSTATIC
+ select PCCARD_NONSTATIC if PCMCIA != n
---help---
This option enables support for CardBus host bridges. Virtually
all modern PCMCIA bridges are CardBus compatible. A "bridge" is
@@ -161,9 +161,8 @@ config TCIC
config PCMCIA_M8XX
tristate "MPC8xx PCMCIA support"
- depends on PCMCIA && PPC && 8xx
- select PCCARD_IODYN
- select PCCARD_NONSTATIC
+ depends on PCCARD && PPC && 8xx
+ select PCCARD_IODYN if PCMCIA != n
help
Say Y here to include support for PowerPC 8xx series PCMCIA
controller.
@@ -238,14 +237,12 @@ config PCMCIA_PROBE
config M32R_PCC
bool "M32R PCMCIA I/F"
depends on M32R && CHIP_M32700 && PCMCIA
- select PCCARD_NONSTATIC
help
Say Y here to use the M32R PCMCIA controller.
config M32R_CFC
bool "M32R CF I/F Controller"
depends on M32R && (PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2 || PLAT_MAPPI3 || PLAT_OPSPUT)
- select PCCARD_NONSTATIC
help
Say Y here to use the M32R CompactFlash controller.
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 83ff802de544..3c83f68c803a 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -2,11 +2,11 @@
# Makefile for the kernel pcmcia subsystem (c/o David Hinds)
#
-pcmcia_core-y += cs.o cistpl.o rsrc_mgr.o socket_sysfs.o
+pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o
pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o
obj-$(CONFIG_PCCARD) += pcmcia_core.o
-pcmcia-y += ds.o pcmcia_resource.o
+pcmcia-y += ds.o pcmcia_resource.o cistpl.o
pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o
obj-$(CONFIG_PCMCIA) += pcmcia.o
diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index e1dccedc5960..5d228071ec69 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -52,8 +52,6 @@ struct at91_cf_socket {
unsigned long phys_baseaddr;
};
-#define SZ_2K (2 * SZ_1K)
-
static inline int at91_cf_present(struct at91_cf_socket *cf)
{
return !gpio_get_value(cf->board->det_pin);
diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c
index 300b368605c9..2482ce7ac6dc 100644
--- a/drivers/pcmcia/bfin_cf_pcmcia.c
+++ b/drivers/pcmcia/bfin_cf_pcmcia.c
@@ -205,7 +205,7 @@ static int __devinit bfin_cf_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "Blackfin CompactFlash/PCMCIA Socket Driver\n");
irq = platform_get_irq(pdev, 0);
- if (!irq)
+ if (irq <= 0)
return -EINVAL;
cd_pfx = platform_get_irq(pdev, 1); /*Card Detect GPIO PIN */
diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index d99f846451a3..ac0686efbf75 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -20,170 +20,12 @@
*/
-#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
+#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <asm/irq.h>
-#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
-
-/*====================================================================*/
-
-/* Offsets in the Expansion ROM Image Header */
-#define ROM_SIGNATURE 0x0000 /* 2 bytes */
-#define ROM_DATA_PTR 0x0018 /* 2 bytes */
-
-/* Offsets in the CardBus PC Card Data Structure */
-#define PCDATA_SIGNATURE 0x0000 /* 4 bytes */
-#define PCDATA_VPD_PTR 0x0008 /* 2 bytes */
-#define PCDATA_LENGTH 0x000a /* 2 bytes */
-#define PCDATA_REVISION 0x000c
-#define PCDATA_IMAGE_SZ 0x0010 /* 2 bytes */
-#define PCDATA_ROM_LEVEL 0x0012 /* 2 bytes */
-#define PCDATA_CODE_TYPE 0x0014
-#define PCDATA_INDICATOR 0x0015
-
-/*=====================================================================
-
- Expansion ROM's have a special layout, and pointers specify an
- image number and an offset within that image. xlate_rom_addr()
- converts an image/offset address to an absolute offset from the
- ROM's base address.
-
-=====================================================================*/
-
-static u_int xlate_rom_addr(void __iomem *b, u_int addr)
-{
- u_int img = 0, ofs = 0, sz;
- u_short data;
- while ((readb(b) == 0x55) && (readb(b + 1) == 0xaa)) {
- if (img == (addr >> 28))
- return (addr & 0x0fffffff) + ofs;
- data = readb(b + ROM_DATA_PTR) + (readb(b + ROM_DATA_PTR + 1) << 8);
- sz = 512 * (readb(b + data + PCDATA_IMAGE_SZ) +
- (readb(b + data + PCDATA_IMAGE_SZ + 1) << 8));
- if ((sz == 0) || (readb(b + data + PCDATA_INDICATOR) & 0x80))
- break;
- b += sz;
- ofs += sz;
- img++;
- }
- return 0;
-}
-
-/*=====================================================================
-
- These are similar to setup_cis_mem and release_cis_mem for 16-bit
- cards. The "result" that is used externally is the cb_cis_virt
- pointer in the struct pcmcia_socket structure.
-
-=====================================================================*/
-
-static void cb_release_cis_mem(struct pcmcia_socket *s)
-{
- if (s->cb_cis_virt) {
- dev_dbg(&s->dev, "cb_release_cis_mem()\n");
- iounmap(s->cb_cis_virt);
- s->cb_cis_virt = NULL;
- s->cb_cis_res = NULL;
- }
-}
-
-static int cb_setup_cis_mem(struct pcmcia_socket *s, struct resource *res)
-{
- unsigned int start, size;
-
- if (res == s->cb_cis_res)
- return 0;
-
- if (s->cb_cis_res)
- cb_release_cis_mem(s);
-
- start = res->start;
- size = res->end - start + 1;
- s->cb_cis_virt = ioremap(start, size);
-
- if (!s->cb_cis_virt)
- return -1;
-
- s->cb_cis_res = res;
-
- return 0;
-}
-
-/*=====================================================================
-
- This is used by the CIS processing code to read CIS information
- from a CardBus device.
-
-=====================================================================*/
-
-int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
- void *ptr)
-{
- struct pci_dev *dev;
- struct resource *res;
-
- dev_dbg(&s->dev, "read_cb_mem(%d, %#x, %u)\n", space, addr, len);
- dev = pci_get_slot(s->cb_dev->subordinate, 0);
- if (!dev)
- goto fail;
-
- /* Config space? */
- if (space == 0) {
- if (addr + len > 0x100)
- goto failput;
- for (; len; addr++, ptr++, len--)
- pci_read_config_byte(dev, addr, ptr);
- return 0;
- }
-
- res = dev->resource + space - 1;
-
- pci_dev_put(dev);
-
- if (!res->flags)
- goto fail;
-
- if (cb_setup_cis_mem(s, res) != 0)
- goto fail;
-
- if (space == 7) {
- addr = xlate_rom_addr(s->cb_cis_virt, addr);
- if (addr == 0)
- goto fail;
- }
-
- if (addr + len > res->end - res->start)
- goto fail;
-
- memcpy_fromio(ptr, s->cb_cis_virt + addr, len);
- return 0;
-
-failput:
- pci_dev_put(dev);
-fail:
- memset(ptr, 0xff, len);
- return -1;
-}
-
-/*=====================================================================
-
- cb_alloc() and cb_free() allocate and free the kernel data
- structures for a Cardbus device, and handle the lowest level PCI
- device setup issues.
-
-=====================================================================*/
static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
{
@@ -215,6 +57,13 @@ static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
}
}
+/**
+ * cb_alloc() - add CardBus device
+ * @s: the pcmcia_socket where the CardBus device is located
+ *
+ * cb_alloc() allocates the kernel data structures for a Cardbus device
+ * and handles the lowest level PCI device setup issues.
+ */
int __ref cb_alloc(struct pcmcia_socket *s)
{
struct pci_bus *bus = s->cb_dev->subordinate;
@@ -249,12 +98,16 @@ int __ref cb_alloc(struct pcmcia_socket *s)
return 0;
}
+/**
+ * cb_free() - remove CardBus device
+ * @s: the pcmcia_socket where the CardBus device was located
+ *
+ * cb_free() handles the lowest level PCI device cleanup.
+ */
void cb_free(struct pcmcia_socket *s)
{
struct pci_dev *bridge = s->cb_dev;
- cb_release_cis_mem(s);
-
if (bridge)
pci_remove_behind_bridge(bridge);
}
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 25b1cd219e37..2f3622dd4b69 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -64,6 +64,7 @@ module_param(cis_width, int, 0444);
void release_cis_mem(struct pcmcia_socket *s)
{
+ mutex_lock(&s->ops_mutex);
if (s->cis_mem.flags & MAP_ACTIVE) {
s->cis_mem.flags &= ~MAP_ACTIVE;
s->ops->set_mem_map(s, &s->cis_mem);
@@ -75,13 +76,15 @@ void release_cis_mem(struct pcmcia_socket *s)
iounmap(s->cis_virt);
s->cis_virt = NULL;
}
+ mutex_unlock(&s->ops_mutex);
}
-EXPORT_SYMBOL(release_cis_mem);
/*
* Map the card memory at "card_offset" into virtual space.
* If flags & MAP_ATTRIB, map the attribute space, otherwise
* map the memory space.
+ *
+ * Must be called with ops_mutex held.
*/
static void __iomem *
set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags)
@@ -140,6 +143,7 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
+ mutex_lock(&s->ops_mutex);
if (attr & IS_INDIRECT) {
/* Indirect accesses use a bunch of special registers at fixed
locations in common memory */
@@ -151,7 +155,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
memset(ptr, 0xff, len);
+ mutex_unlock(&s->ops_mutex);
return -1;
}
@@ -165,6 +171,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
} else {
u_int inc = 1, card_offset, flags;
+ if (addr > CISTPL_MAX_CIS_SIZE)
+ dev_dbg(&s->dev, "attempt to read CIS mem at addr %#x", addr);
+
flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
if (attr) {
flags |= MAP_ATTRIB;
@@ -176,7 +185,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
while (len) {
sys = set_cis_map(s, card_offset, flags);
if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
memset(ptr, 0xff, len);
+ mutex_unlock(&s->ops_mutex);
return -1;
}
end = sys + s->map_size;
@@ -190,12 +201,12 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
addr = 0;
}
}
+ mutex_unlock(&s->ops_mutex);
dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n",
*(u_char *)(ptr+0), *(u_char *)(ptr+1),
*(u_char *)(ptr+2), *(u_char *)(ptr+3));
return 0;
}
-EXPORT_SYMBOL(pcmcia_read_cis_mem);
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
@@ -206,6 +217,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
+ mutex_lock(&s->ops_mutex);
if (attr & IS_INDIRECT) {
/* Indirect accesses use a bunch of special registers at fixed
locations in common memory */
@@ -216,8 +228,11 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
}
sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
- if (!sys)
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ mutex_unlock(&s->ops_mutex);
return; /* FIXME: Error */
+ }
writeb(flags, sys+CISREG_ICTRL0);
writeb(addr & 0xff, sys+CISREG_IADDR0);
@@ -239,8 +254,11 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
card_offset = addr & ~(s->map_size-1);
while (len) {
sys = set_cis_map(s, card_offset, flags);
- if (!sys)
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ mutex_unlock(&s->ops_mutex);
return; /* FIXME: error */
+ }
end = sys + s->map_size;
sys = sys + (addr & (s->map_size-1));
@@ -253,8 +271,8 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
addr = 0;
}
}
+ mutex_unlock(&s->ops_mutex);
}
-EXPORT_SYMBOL(pcmcia_write_cis_mem);
/*======================================================================
@@ -265,32 +283,36 @@ EXPORT_SYMBOL(pcmcia_write_cis_mem);
======================================================================*/
-static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
- size_t len, void *ptr)
+static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
+ size_t len, void *ptr)
{
- struct cis_cache_entry *cis;
- int ret;
+ struct cis_cache_entry *cis;
+ int ret = 0;
- if (s->fake_cis) {
- if (s->fake_cis_len >= addr+len)
- memcpy(ptr, s->fake_cis+addr, len);
- else
- memset(ptr, 0xff, len);
- return;
- }
+ if (s->state & SOCKET_CARDBUS)
+ return -EINVAL;
- list_for_each_entry(cis, &s->cis_cache, node) {
- if (cis->addr == addr && cis->len == len && cis->attr == attr) {
- memcpy(ptr, cis->cache, len);
- return;
+ mutex_lock(&s->ops_mutex);
+ if (s->fake_cis) {
+ if (s->fake_cis_len >= addr+len)
+ memcpy(ptr, s->fake_cis+addr, len);
+ else {
+ memset(ptr, 0xff, len);
+ ret = -EINVAL;
+ }
+ mutex_unlock(&s->ops_mutex);
+ return ret;
}
- }
-#ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS)
- ret = read_cb_mem(s, attr, addr, len, ptr);
- else
-#endif
+ list_for_each_entry(cis, &s->cis_cache, node) {
+ if (cis->addr == addr && cis->len == len && cis->attr == attr) {
+ memcpy(ptr, cis->cache, len);
+ mutex_unlock(&s->ops_mutex);
+ return 0;
+ }
+ }
+ mutex_unlock(&s->ops_mutex);
+
ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr);
if (ret == 0) {
@@ -301,9 +323,12 @@ static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
cis->len = len;
cis->attr = attr;
memcpy(cis->cache, ptr, len);
+ mutex_lock(&s->ops_mutex);
list_add(&cis->node, &s->cis_cache);
+ mutex_unlock(&s->ops_mutex);
}
}
+ return ret;
}
static void
@@ -311,32 +336,35 @@ remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len)
{
struct cis_cache_entry *cis;
+ mutex_lock(&s->ops_mutex);
list_for_each_entry(cis, &s->cis_cache, node)
if (cis->addr == addr && cis->len == len && cis->attr == attr) {
list_del(&cis->node);
kfree(cis);
break;
}
+ mutex_unlock(&s->ops_mutex);
}
+/**
+ * destroy_cis_cache() - destroy the CIS cache
+ * @s: pcmcia_socket for which CIS cache shall be destroyed
+ *
+ * This destroys the CIS cache but keeps any fake CIS alive. Must be
+ * called with ops_mutex held.
+ */
+
void destroy_cis_cache(struct pcmcia_socket *s)
{
struct list_head *l, *n;
+ struct cis_cache_entry *cis;
list_for_each_safe(l, n, &s->cis_cache) {
- struct cis_cache_entry *cis = list_entry(l, struct cis_cache_entry, node);
-
+ cis = list_entry(l, struct cis_cache_entry, node);
list_del(&cis->node);
kfree(cis);
}
-
- /*
- * If there was a fake CIS, destroy that as well.
- */
- kfree(s->fake_cis);
- s->fake_cis = NULL;
}
-EXPORT_SYMBOL(destroy_cis_cache);
/*======================================================================
@@ -349,6 +377,10 @@ int verify_cis_cache(struct pcmcia_socket *s)
{
struct cis_cache_entry *cis;
char *buf;
+ int ret;
+
+ if (s->state & SOCKET_CARDBUS)
+ return -EINVAL;
buf = kmalloc(256, GFP_KERNEL);
if (buf == NULL) {
@@ -361,14 +393,9 @@ int verify_cis_cache(struct pcmcia_socket *s)
if (len > 256)
len = 256;
-#ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS)
- read_cb_mem(s, cis->attr, cis->addr, len, buf);
- else
-#endif
- pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf);
- if (memcmp(buf, cis->cache, len) != 0) {
+ ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf);
+ if (ret || memcmp(buf, cis->cache, len) != 0) {
kfree(buf);
return -1;
}
@@ -391,17 +418,20 @@ int pcmcia_replace_cis(struct pcmcia_socket *s,
dev_printk(KERN_WARNING, &s->dev, "replacement CIS too big\n");
return -EINVAL;
}
+ mutex_lock(&s->ops_mutex);
kfree(s->fake_cis);
s->fake_cis = kmalloc(len, GFP_KERNEL);
if (s->fake_cis == NULL) {
dev_printk(KERN_WARNING, &s->dev, "no memory to replace CIS\n");
+ mutex_unlock(&s->ops_mutex);
return -ENOMEM;
}
s->fake_cis_len = len;
memcpy(s->fake_cis, data, len);
+ dev_info(&s->dev, "Using replacement CIS\n");
+ mutex_unlock(&s->ops_mutex);
return 0;
}
-EXPORT_SYMBOL(pcmcia_replace_cis);
/*======================================================================
@@ -425,25 +455,16 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple
{
if (!s)
return -EINVAL;
- if (!(s->state & SOCKET_PRESENT))
+
+ if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
return -ENODEV;
tuple->TupleLink = tuple->Flags = 0;
-#ifdef CONFIG_CARDBUS
- if (s->state & SOCKET_CARDBUS) {
- struct pci_dev *dev = s->cb_dev;
- u_int ptr;
- pci_bus_read_config_dword(dev->subordinate, 0, PCI_CARDBUS_CIS, &ptr);
- tuple->CISOffset = ptr & ~7;
- SPACE(tuple->Flags) = (ptr & 7);
- } else
-#endif
- {
- /* Assume presence of a LONGLINK_C to address 0 */
- tuple->CISOffset = tuple->LinkOffset = 0;
- SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
- }
- if (!(s->state & SOCKET_CARDBUS) && (s->functions > 1) &&
- !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
+
+ /* Assume presence of a LONGLINK_C to address 0 */
+ tuple->CISOffset = tuple->LinkOffset = 0;
+ SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
+
+ if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
cisdata_t req = tuple->DesiredTuple;
tuple->DesiredTuple = CISTPL_LONGLINK_MFC;
if (pccard_get_next_tuple(s, function, tuple) == 0) {
@@ -456,17 +477,19 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple
}
return pccard_get_next_tuple(s, function, tuple);
}
-EXPORT_SYMBOL(pccard_get_first_tuple);
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
{
u_char link[5];
u_int ofs;
+ int ret;
if (MFC_FN(tuple->Flags)) {
/* Get indirect link from the MFC tuple */
- read_cis_cache(s, LINK_SPACE(tuple->Flags),
+ ret = read_cis_cache(s, LINK_SPACE(tuple->Flags),
tuple->LinkOffset, 5, link);
+ if (ret)
+ return -1;
ofs = get_unaligned_le32(link + 1);
SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR);
/* Move to the next indirect link */
@@ -479,10 +502,12 @@ static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
} else {
return -1;
}
- if (!(s->state & SOCKET_CARDBUS) && SPACE(tuple->Flags)) {
+ if (SPACE(tuple->Flags)) {
/* This is ugly, but a common CIS error is to code the long
link offset incorrectly, so we check the right spot... */
- read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
+ ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
+ if (ret)
+ return -1;
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
(strncmp(link+2, "CIS", 3) == 0))
return ofs;
@@ -490,7 +515,9 @@ static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
/* Then, we try the wrong spot... */
ofs = ofs >> 1;
}
- read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
+ ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
+ if (ret)
+ return -1;
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
(strncmp(link+2, "CIS", 3) == 0))
return ofs;
@@ -502,10 +529,11 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
{
u_char link[2], tmp;
int ofs, i, attr;
+ int ret;
if (!s)
return -EINVAL;
- if (!(s->state & SOCKET_PRESENT))
+ if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
return -ENODEV;
link[1] = tuple->TupleLink;
@@ -516,7 +544,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
if (link[1] == 0xff) {
link[0] = CISTPL_END;
} else {
- read_cis_cache(s, attr, ofs, 2, link);
+ ret = read_cis_cache(s, attr, ofs, 2, link);
+ if (ret)
+ return -1;
if (link[0] == CISTPL_NULL) {
ofs++; continue;
}
@@ -528,7 +558,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
if (ofs < 0)
return -ENOSPC;
attr = SPACE(tuple->Flags);
- read_cis_cache(s, attr, ofs, 2, link);
+ ret = read_cis_cache(s, attr, ofs, 2, link);
+ if (ret)
+ return -1;
}
/* Is this a link tuple? Make a note of it */
@@ -542,12 +574,16 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
case CISTPL_LONGLINK_A:
HAS_LINK(tuple->Flags) = 1;
LINK_SPACE(tuple->Flags) = attr | IS_ATTR;
- read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
+ ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
+ if (ret)
+ return -1;
break;
case CISTPL_LONGLINK_C:
HAS_LINK(tuple->Flags) = 1;
LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR;
- read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
+ ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
+ if (ret)
+ return -1;
break;
case CISTPL_INDIRECT:
HAS_LINK(tuple->Flags) = 1;
@@ -559,7 +595,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
LINK_SPACE(tuple->Flags) = attr;
if (function == BIND_FN_ALL) {
/* Follow all the MFC links */
- read_cis_cache(s, attr, ofs+2, 1, &tmp);
+ ret = read_cis_cache(s, attr, ofs+2, 1, &tmp);
+ if (ret)
+ return -1;
MFC_FN(tuple->Flags) = tmp;
} else {
/* Follow exactly one of the links */
@@ -592,7 +630,6 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
tuple->CISOffset = ofs + 2;
return 0;
}
-EXPORT_SYMBOL(pccard_get_next_tuple);
/*====================================================================*/
@@ -601,6 +638,7 @@ EXPORT_SYMBOL(pccard_get_next_tuple);
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
{
u_int len;
+ int ret;
if (!s)
return -EINVAL;
@@ -611,12 +649,13 @@ int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
tuple->TupleDataLen = tuple->TupleLink;
if (len == 0)
return 0;
- read_cis_cache(s, SPACE(tuple->Flags),
+ ret = read_cis_cache(s, SPACE(tuple->Flags),
tuple->CISOffset + tuple->TupleOffset,
_MIN(len, tuple->TupleDataMax), tuple->TupleData);
+ if (ret)
+ return -1;
return 0;
}
-EXPORT_SYMBOL(pccard_get_tuple_data);
/*======================================================================
@@ -1190,119 +1229,6 @@ static int parse_cftable_entry(tuple_t *tuple,
/*====================================================================*/
-#ifdef CONFIG_CARDBUS
-
-static int parse_bar(tuple_t *tuple, cistpl_bar_t *bar)
-{
- u_char *p;
- if (tuple->TupleDataLen < 6)
- return -EINVAL;
- p = (u_char *)tuple->TupleData;
- bar->attr = *p;
- p += 2;
- bar->size = get_unaligned_le32(p);
- return 0;
-}
-
-static int parse_config_cb(tuple_t *tuple, cistpl_config_t *config)
-{
- u_char *p;
-
- p = (u_char *)tuple->TupleData;
- if ((*p != 3) || (tuple->TupleDataLen < 6))
- return -EINVAL;
- config->last_idx = *(++p);
- p++;
- config->base = get_unaligned_le32(p);
- config->subtuples = tuple->TupleDataLen - 6;
- return 0;
-}
-
-static int parse_cftable_entry_cb(tuple_t *tuple,
- cistpl_cftable_entry_cb_t *entry)
-{
- u_char *p, *q, features;
-
- p = tuple->TupleData;
- q = p + tuple->TupleDataLen;
- entry->index = *p & 0x3f;
- entry->flags = 0;
- if (*p & 0x40)
- entry->flags |= CISTPL_CFTABLE_DEFAULT;
-
- /* Process optional features */
- if (++p == q)
- return -EINVAL;
- features = *p; p++;
-
- /* Power options */
- if ((features & 3) > 0) {
- p = parse_power(p, q, &entry->vcc);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vcc.present = 0;
- if ((features & 3) > 1) {
- p = parse_power(p, q, &entry->vpp1);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vpp1.present = 0;
- if ((features & 3) > 2) {
- p = parse_power(p, q, &entry->vpp2);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vpp2.present = 0;
-
- /* I/O window options */
- if (features & 0x08) {
- if (p == q)
- return -EINVAL;
- entry->io = *p; p++;
- } else
- entry->io = 0;
-
- /* Interrupt options */
- if (features & 0x10) {
- p = parse_irq(p, q, &entry->irq);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->irq.IRQInfo1 = 0;
-
- if (features & 0x20) {
- if (p == q)
- return -EINVAL;
- entry->mem = *p; p++;
- } else
- entry->mem = 0;
-
- /* Misc features */
- if (features & 0x80) {
- if (p == q)
- return -EINVAL;
- entry->flags |= (*p << 8);
- if (*p & 0x80) {
- if (++p == q)
- return -EINVAL;
- entry->flags |= (*p << 16);
- }
- while (*p & 0x80)
- if (++p == q)
- return -EINVAL;
- p++;
- }
-
- entry->subtuples = q-p;
-
- return 0;
-}
-
-#endif
-
-/*====================================================================*/
-
static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo)
{
u_char *p, *q;
@@ -1404,17 +1330,6 @@ int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
case CISTPL_DEVICE_A:
ret = parse_device(tuple, &parse->device);
break;
-#ifdef CONFIG_CARDBUS
- case CISTPL_BAR:
- ret = parse_bar(tuple, &parse->bar);
- break;
- case CISTPL_CONFIG_CB:
- ret = parse_config_cb(tuple, &parse->config);
- break;
- case CISTPL_CFTABLE_ENTRY_CB:
- ret = parse_cftable_entry_cb(tuple, &parse->cftable_entry_cb);
- break;
-#endif
case CISTPL_CHECKSUM:
ret = parse_checksum(tuple, &parse->checksum);
break;
@@ -1513,7 +1428,6 @@ done:
kfree(buf);
return ret;
}
-EXPORT_SYMBOL(pccard_read_tuple);
/**
@@ -1573,84 +1487,238 @@ next_entry:
kfree(buf);
return ret;
}
-EXPORT_SYMBOL(pccard_loop_tuple);
-/*======================================================================
-
- This tries to determine if a card has a sensible CIS. It returns
- the number of tuples in the CIS, or 0 if the CIS looks bad. The
- checks include making sure several critical tuples are present and
- valid; seeing if the total number of tuples is reasonable; and
- looking for tuples that use reserved codes.
-
-======================================================================*/
-
+/**
+ * pccard_validate_cis() - check whether card has a sensible CIS
+ * @s: the struct pcmcia_socket we are to check
+ * @info: returns the number of tuples in the (valid) CIS, or 0
+ *
+ * This tries to determine if a card has a sensible CIS. In @info, it
+ * returns the number of tuples in the CIS, or 0 if the CIS looks bad. The
+ * checks include making sure several critical tuples are present and
+ * valid; seeing if the total number of tuples is reasonable; and
+ * looking for tuples that use reserved codes.
+ *
+ * The function returns 0 on success.
+ */
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
{
- tuple_t *tuple;
- cisparse_t *p;
- unsigned int count = 0;
- int ret, reserved, dev_ok = 0, ident_ok = 0;
+ tuple_t *tuple;
+ cisparse_t *p;
+ unsigned int count = 0;
+ int ret, reserved, dev_ok = 0, ident_ok = 0;
- if (!s)
- return -EINVAL;
+ if (!s)
+ return -EINVAL;
- tuple = kmalloc(sizeof(*tuple), GFP_KERNEL);
- if (tuple == NULL) {
- dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n");
- return -ENOMEM;
- }
- p = kmalloc(sizeof(*p), GFP_KERNEL);
- if (p == NULL) {
- kfree(tuple);
- dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n");
- return -ENOMEM;
- }
+ /* We do not want to validate the CIS cache... */
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(s);
+ mutex_unlock(&s->ops_mutex);
- count = reserved = 0;
- tuple->DesiredTuple = RETURN_FIRST_TUPLE;
- tuple->Attributes = TUPLE_RETURN_COMMON;
- ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple);
- if (ret != 0)
- goto done;
-
- /* First tuple should be DEVICE; we should really have either that
- or a CFTABLE_ENTRY of some sort */
- if ((tuple->TupleCode == CISTPL_DEVICE) ||
- (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p) == 0) ||
- (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p) == 0))
- dev_ok++;
-
- /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2
- tuple, for card identification. Certain old D-Link and Linksys
- cards have only a broken VERS_2 tuple; hence the bogus test. */
- if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) ||
- (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) ||
- (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC))
- ident_ok++;
-
- if (!dev_ok && !ident_ok)
- goto done;
-
- for (count = 1; count < MAX_TUPLES; count++) {
- ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple);
+ tuple = kmalloc(sizeof(*tuple), GFP_KERNEL);
+ if (tuple == NULL) {
+ dev_warn(&s->dev, "no memory to validate CIS\n");
+ return -ENOMEM;
+ }
+ p = kmalloc(sizeof(*p), GFP_KERNEL);
+ if (p == NULL) {
+ kfree(tuple);
+ dev_warn(&s->dev, "no memory to validate CIS\n");
+ return -ENOMEM;
+ }
+
+ count = reserved = 0;
+ tuple->DesiredTuple = RETURN_FIRST_TUPLE;
+ tuple->Attributes = TUPLE_RETURN_COMMON;
+ ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple);
if (ret != 0)
- break;
- if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) ||
- ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) ||
- ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff)))
- reserved++;
- }
- if ((count == MAX_TUPLES) || (reserved > 5) ||
- ((!dev_ok || !ident_ok) && (count > 10)))
- count = 0;
+ goto done;
+
+ /* First tuple should be DEVICE; we should really have either that
+ or a CFTABLE_ENTRY of some sort */
+ if ((tuple->TupleCode == CISTPL_DEVICE) ||
+ (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p)) ||
+ (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p)))
+ dev_ok++;
+
+ /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2
+ tuple, for card identification. Certain old D-Link and Linksys
+ cards have only a broken VERS_2 tuple; hence the bogus test. */
+ if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) ||
+ (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) ||
+ (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC))
+ ident_ok++;
+
+ if (!dev_ok && !ident_ok)
+ goto done;
+
+ for (count = 1; count < MAX_TUPLES; count++) {
+ ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple);
+ if (ret != 0)
+ break;
+ if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) ||
+ ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) ||
+ ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff)))
+ reserved++;
+ }
+ if ((count == MAX_TUPLES) || (reserved > 5) ||
+ ((!dev_ok || !ident_ok) && (count > 10)))
+ count = 0;
+
+ ret = 0;
done:
- if (info)
- *info = count;
- kfree(tuple);
- kfree(p);
- return 0;
+ /* invalidate CIS cache on failure */
+ if (!dev_ok || !ident_ok || !count) {
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(s);
+ mutex_unlock(&s->ops_mutex);
+ ret = -EIO;
+ }
+
+ if (info)
+ *info = count;
+ kfree(tuple);
+ kfree(p);
+ return ret;
}
-EXPORT_SYMBOL(pccard_validate_cis);
+
+
+#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
+
+static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf,
+ loff_t off, size_t count)
+{
+ tuple_t tuple;
+ int status, i;
+ loff_t pointer = 0;
+ ssize_t ret = 0;
+ u_char *tuplebuffer;
+ u_char *tempbuffer;
+
+ tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
+ if (!tuplebuffer)
+ return -ENOMEM;
+
+ tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
+ if (!tempbuffer) {
+ ret = -ENOMEM;
+ goto free_tuple;
+ }
+
+ memset(&tuple, 0, sizeof(tuple_t));
+
+ tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
+ tuple.DesiredTuple = RETURN_FIRST_TUPLE;
+ tuple.TupleOffset = 0;
+
+ status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
+ while (!status) {
+ tuple.TupleData = tuplebuffer;
+ tuple.TupleDataMax = 255;
+ memset(tuplebuffer, 0, sizeof(u_char) * 255);
+
+ status = pccard_get_tuple_data(s, &tuple);
+ if (status)
+ break;
+
+ if (off < (pointer + 2 + tuple.TupleDataLen)) {
+ tempbuffer[0] = tuple.TupleCode & 0xff;
+ tempbuffer[1] = tuple.TupleLink & 0xff;
+ for (i = 0; i < tuple.TupleDataLen; i++)
+ tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
+
+ for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
+ if (((i + pointer) >= off) &&
+ (i + pointer) < (off + count)) {
+ buf[ret] = tempbuffer[i];
+ ret++;
+ }
+ }
+ }
+
+ pointer += 2 + tuple.TupleDataLen;
+
+ if (pointer >= (off + count))
+ break;
+
+ if (tuple.TupleCode == CISTPL_END)
+ break;
+ status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
+ }
+
+ kfree(tempbuffer);
+ free_tuple:
+ kfree(tuplebuffer);
+
+ return ret;
+}
+
+
+static ssize_t pccard_show_cis(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ unsigned int size = 0x200;
+
+ if (off >= size)
+ count = 0;
+ else {
+ struct pcmcia_socket *s;
+ unsigned int chains;
+
+ if (off + count > size)
+ count = size - off;
+
+ s = to_socket(container_of(kobj, struct device, kobj));
+
+ if (!(s->state & SOCKET_PRESENT))
+ return -ENODEV;
+ if (pccard_validate_cis(s, &chains))
+ return -EIO;
+ if (!chains)
+ return -ENODATA;
+
+ count = pccard_extract_cis(s, buf, off, count);
+ }
+
+ return count;
+}
+
+
+static ssize_t pccard_store_cis(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct pcmcia_socket *s;
+ int error;
+
+ s = to_socket(container_of(kobj, struct device, kobj));
+
+ if (off)
+ return -EINVAL;
+
+ if (count >= CISTPL_MAX_CIS_SIZE)
+ return -EINVAL;
+
+ if (!(s->state & SOCKET_PRESENT))
+ return -ENODEV;
+
+ error = pcmcia_replace_cis(s, buf, count);
+ if (error)
+ return -EIO;
+
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
+
+ return count;
+}
+
+
+struct bin_attribute pccard_cis_attr = {
+ .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
+ .size = 0x200,
+ .read = pccard_show_cis,
+ .write = pccard_store_cis,
+};
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 6d6f82b38a68..e679e708db63 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -140,19 +140,13 @@ struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt)
struct device *dev = get_device(&skt->dev);
if (!dev)
return NULL;
- skt = dev_get_drvdata(dev);
- if (!try_module_get(skt->owner)) {
- put_device(&skt->dev);
- return NULL;
- }
- return skt;
+ return dev_get_drvdata(dev);
}
EXPORT_SYMBOL(pcmcia_get_socket);
void pcmcia_put_socket(struct pcmcia_socket *skt)
{
- module_put(skt->owner);
put_device(&skt->dev);
}
EXPORT_SYMBOL(pcmcia_put_socket);
@@ -181,8 +175,6 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
dev_dbg(&socket->dev, "pcmcia_register_socket(0x%p)\n", socket->ops);
- spin_lock_init(&socket->lock);
-
/* try to obtain a socket number [yes, it gets ugly if we
* register more than 2^sizeof(unsigned int) pcmcia
* sockets... but the socket number is deprecated
@@ -228,10 +220,13 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
init_completion(&socket->socket_released);
init_completion(&socket->thread_done);
mutex_init(&socket->skt_mutex);
+ mutex_init(&socket->ops_mutex);
spin_lock_init(&socket->thread_lock);
if (socket->resource_ops->init) {
+ mutex_lock(&socket->ops_mutex);
ret = socket->resource_ops->init(socket);
+ mutex_unlock(&socket->ops_mutex);
if (ret)
goto err;
}
@@ -283,15 +278,17 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket)
if (socket->thread)
kthread_stop(socket->thread);
- release_cis_mem(socket);
-
/* remove from our own list */
down_write(&pcmcia_socket_list_rwsem);
list_del(&socket->socket_list);
up_write(&pcmcia_socket_list_rwsem);
/* wait for sysfs to drop all references */
- release_resource_db(socket);
+ if (socket->resource_ops->exit) {
+ mutex_lock(&socket->ops_mutex);
+ socket->resource_ops->exit(socket);
+ mutex_unlock(&socket->ops_mutex);
+ }
wait_for_completion(&socket->socket_released);
} /* pcmcia_unregister_socket */
EXPORT_SYMBOL(pcmcia_unregister_socket);
@@ -328,7 +325,7 @@ static int send_event(struct pcmcia_socket *s, event_t event, int priority)
{
int ret;
- if (s->state & SOCKET_CARDBUS)
+ if ((s->state & SOCKET_CARDBUS) && (event != CS_EVENT_CARD_REMOVAL))
return 0;
dev_dbg(&s->dev, "send_event(event %d, pri %d, callback 0x%p)\n",
@@ -346,13 +343,6 @@ static int send_event(struct pcmcia_socket *s, event_t event, int priority)
return ret;
}
-static void socket_remove_drivers(struct pcmcia_socket *skt)
-{
- dev_dbg(&skt->dev, "remove_drivers\n");
-
- send_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH);
-}
-
static int socket_reset(struct pcmcia_socket *skt)
{
int status, i;
@@ -395,7 +385,9 @@ static void socket_shutdown(struct pcmcia_socket *s)
dev_dbg(&s->dev, "shutdown\n");
- socket_remove_drivers(s);
+ send_event(s, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH);
+
+ mutex_lock(&s->ops_mutex);
s->state &= SOCKET_INUSE | SOCKET_PRESENT;
msleep(shutdown_delay * 10);
s->state &= SOCKET_INUSE;
@@ -406,11 +398,21 @@ static void socket_shutdown(struct pcmcia_socket *s)
s->ops->set_socket(s, &s->socket);
s->irq.AssignedIRQ = s->irq.Config = 0;
s->lock_count = 0;
- destroy_cis_cache(s);
+ kfree(s->fake_cis);
+ s->fake_cis = NULL;
+ s->functions = 0;
+
+ /* From here on we can be sure that only we (that is, the
+ * pccardd thread) accesses this socket, and all (16-bit)
+ * PCMCIA interactions are gone. Therefore, release
+ * ops_mutex so that we don't get a sysfs-related lockdep
+ * warning.
+ */
+ mutex_unlock(&s->ops_mutex);
+
#ifdef CONFIG_CARDBUS
cb_free(s);
#endif
- s->functions = 0;
/* give socket some time to power down */
msleep(100);
@@ -421,7 +423,7 @@ static void socket_shutdown(struct pcmcia_socket *s)
"*** DANGER *** unable to remove socket power\n");
}
- cs_socket_put(s);
+ s->state &= ~SOCKET_INUSE;
}
static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
@@ -460,7 +462,8 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
return -EINVAL;
}
skt->state |= SOCKET_CARDBUS;
- }
+ } else
+ skt->state &= ~SOCKET_CARDBUS;
/*
* Decode the card voltage requirements, and apply power to the card.
@@ -509,8 +512,12 @@ static int socket_insert(struct pcmcia_socket *skt)
dev_dbg(&skt->dev, "insert\n");
- if (!cs_socket_get(skt))
- return -ENODEV;
+ mutex_lock(&skt->ops_mutex);
+ if (skt->state & SOCKET_INUSE) {
+ mutex_unlock(&skt->ops_mutex);
+ return -EINVAL;
+ }
+ skt->state |= SOCKET_INUSE;
ret = socket_setup(skt, setup_delay);
if (ret == 0) {
@@ -528,9 +535,11 @@ static int socket_insert(struct pcmcia_socket *skt)
}
#endif
dev_dbg(&skt->dev, "insert done\n");
+ mutex_unlock(&skt->ops_mutex);
send_event(skt, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW);
} else {
+ mutex_unlock(&skt->ops_mutex);
socket_shutdown(skt);
}
@@ -542,58 +551,66 @@ static int socket_suspend(struct pcmcia_socket *skt)
if (skt->state & SOCKET_SUSPEND)
return -EBUSY;
+ mutex_lock(&skt->ops_mutex);
+ skt->suspended_state = skt->state;
+
send_event(skt, CS_EVENT_PM_SUSPEND, CS_EVENT_PRI_LOW);
skt->socket = dead_socket;
skt->ops->set_socket(skt, &skt->socket);
if (skt->ops->suspend)
skt->ops->suspend(skt);
skt->state |= SOCKET_SUSPEND;
-
+ mutex_unlock(&skt->ops_mutex);
return 0;
}
static int socket_early_resume(struct pcmcia_socket *skt)
{
+ mutex_lock(&skt->ops_mutex);
skt->socket = dead_socket;
skt->ops->init(skt);
skt->ops->set_socket(skt, &skt->socket);
if (skt->state & SOCKET_PRESENT)
skt->resume_status = socket_setup(skt, resume_delay);
+ mutex_unlock(&skt->ops_mutex);
return 0;
}
static int socket_late_resume(struct pcmcia_socket *skt)
{
- if (!(skt->state & SOCKET_PRESENT)) {
- skt->state &= ~SOCKET_SUSPEND;
+ mutex_lock(&skt->ops_mutex);
+ skt->state &= ~SOCKET_SUSPEND;
+ mutex_unlock(&skt->ops_mutex);
+
+ if (!(skt->state & SOCKET_PRESENT))
return socket_insert(skt);
+
+ if (skt->resume_status) {
+ socket_shutdown(skt);
+ return 0;
}
- if (skt->resume_status == 0) {
- /*
- * FIXME: need a better check here for cardbus cards.
- */
- if (verify_cis_cache(skt) != 0) {
- dev_dbg(&skt->dev, "cis mismatch - different card\n");
- socket_remove_drivers(skt);
- destroy_cis_cache(skt);
- /*
- * Workaround: give DS time to schedule removal.
- * Remove me once the 100ms delay is eliminated
- * in ds.c
- */
- msleep(200);
- send_event(skt, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW);
- } else {
- dev_dbg(&skt->dev, "cis matches cache\n");
- send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW);
- }
- } else {
+ if (skt->suspended_state != skt->state) {
+ dev_dbg(&skt->dev,
+ "suspend state 0x%x != resume state 0x%x\n",
+ skt->suspended_state, skt->state);
+
socket_shutdown(skt);
+ return socket_insert(skt);
}
- skt->state &= ~SOCKET_SUSPEND;
+#ifdef CONFIG_CARDBUS
+ if (skt->state & SOCKET_CARDBUS) {
+ /* We can't be sure the CardBus card is the same
+ * as the one previously inserted. Therefore, remove
+ * and re-add... */
+ cb_free(skt);
+ cb_alloc(skt);
+ return 0;
+ }
+#endif
+ send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW);
return 0;
}
@@ -672,20 +689,26 @@ static int pccardd(void *__skt)
complete(&skt->thread_done);
+ /* wait for userspace to catch up */
+ msleep(250);
+
set_freezable();
for (;;) {
unsigned long flags;
unsigned int events;
+ unsigned int sysfs_events;
set_current_state(TASK_INTERRUPTIBLE);
spin_lock_irqsave(&skt->thread_lock, flags);
events = skt->thread_events;
skt->thread_events = 0;
+ sysfs_events = skt->sysfs_events;
+ skt->sysfs_events = 0;
spin_unlock_irqrestore(&skt->thread_lock, flags);
+ mutex_lock(&skt->skt_mutex);
if (events) {
- mutex_lock(&skt->skt_mutex);
if (events & SS_DETECT)
socket_detect_change(skt);
if (events & SS_BATDEAD)
@@ -694,10 +717,39 @@ static int pccardd(void *__skt)
send_event(skt, CS_EVENT_BATTERY_LOW, CS_EVENT_PRI_LOW);
if (events & SS_READY)
send_event(skt, CS_EVENT_READY_CHANGE, CS_EVENT_PRI_LOW);
- mutex_unlock(&skt->skt_mutex);
- continue;
}
+ if (sysfs_events) {
+ if (sysfs_events & PCMCIA_UEVENT_EJECT)
+ socket_remove(skt);
+ if (sysfs_events & PCMCIA_UEVENT_INSERT)
+ socket_insert(skt);
+ if ((sysfs_events & PCMCIA_UEVENT_RESUME) &&
+ !(skt->state & SOCKET_CARDBUS)) {
+ ret = socket_resume(skt);
+ if (!ret && skt->callback)
+ skt->callback->resume(skt);
+ }
+ if ((sysfs_events & PCMCIA_UEVENT_SUSPEND) &&
+ !(skt->state & SOCKET_CARDBUS)) {
+ if (skt->callback)
+ ret = skt->callback->suspend(skt);
+ else
+ ret = 0;
+ if (!ret)
+ socket_suspend(skt);
+ }
+ if ((sysfs_events & PCMCIA_UEVENT_REQUERY) &&
+ !(skt->state & SOCKET_CARDBUS)) {
+ if (!ret && skt->callback)
+ skt->callback->requery(skt);
+ }
+ }
+ mutex_unlock(&skt->skt_mutex);
+
+ if (events || sysfs_events)
+ continue;
+
if (kthread_should_stop())
break;
@@ -707,6 +759,13 @@ static int pccardd(void *__skt)
/* make sure we are running before we exit */
set_current_state(TASK_RUNNING);
+ /* shut down socket, if a device is still present */
+ if (skt->state & SOCKET_PRESENT) {
+ mutex_lock(&skt->skt_mutex);
+ socket_remove(skt);
+ mutex_unlock(&skt->skt_mutex);
+ }
+
/* remove from the device core */
pccard_sysfs_remove_socket(&skt->dev);
device_unregister(&skt->dev);
@@ -732,6 +791,31 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
} /* pcmcia_parse_events */
EXPORT_SYMBOL(pcmcia_parse_events);
+/**
+ * pcmcia_parse_uevents() - tell pccardd to issue manual commands
+ * @s: the PCMCIA socket we wan't to command
+ * @events: events to pass to pccardd
+ *
+ * userspace-issued insert, eject, suspend and resume commands must be
+ * handled by pccardd to avoid any sysfs-related deadlocks. Valid events
+ * are PCMCIA_UEVENT_EJECT (for eject), PCMCIA_UEVENT__INSERT (for insert),
+ * PCMCIA_UEVENT_RESUME (for resume), PCMCIA_UEVENT_SUSPEND (for suspend)
+ * and PCMCIA_UEVENT_REQUERY (for re-querying the PCMCIA card).
+ */
+void pcmcia_parse_uevents(struct pcmcia_socket *s, u_int events)
+{
+ unsigned long flags;
+ dev_dbg(&s->dev, "parse_uevents: events %08x\n", events);
+ if (s->thread) {
+ spin_lock_irqsave(&s->thread_lock, flags);
+ s->sysfs_events |= events;
+ spin_unlock_irqrestore(&s->thread_lock, flags);
+
+ wake_up_process(s->thread);
+ }
+}
+EXPORT_SYMBOL(pcmcia_parse_uevents);
+
/* register pcmcia_callback */
int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
@@ -796,7 +880,10 @@ int pcmcia_reset_card(struct pcmcia_socket *skt)
send_event(skt, CS_EVENT_RESET_PHYSICAL, CS_EVENT_PRI_LOW);
if (skt->callback)
skt->callback->suspend(skt);
- if (socket_reset(skt) == 0) {
+ mutex_lock(&skt->ops_mutex);
+ ret = socket_reset(skt);
+ mutex_unlock(&skt->ops_mutex);
+ if (ret == 0) {
send_event(skt, CS_EVENT_CARD_RESET, CS_EVENT_PRI_LOW);
if (skt->callback)
skt->callback->resume(skt);
@@ -812,121 +899,6 @@ int pcmcia_reset_card(struct pcmcia_socket *skt)
EXPORT_SYMBOL(pcmcia_reset_card);
-/* These shut down or wake up a socket. They are sort of user
- * initiated versions of the APM suspend and resume actions.
- */
-int pcmcia_suspend_card(struct pcmcia_socket *skt)
-{
- int ret;
-
- dev_dbg(&skt->dev, "suspending socket\n");
-
- mutex_lock(&skt->skt_mutex);
- do {
- if (!(skt->state & SOCKET_PRESENT)) {
- ret = -ENODEV;
- break;
- }
- if (skt->state & SOCKET_CARDBUS) {
- ret = -EPERM;
- break;
- }
- if (skt->callback) {
- ret = skt->callback->suspend(skt);
- if (ret)
- break;
- }
- ret = socket_suspend(skt);
- } while (0);
- mutex_unlock(&skt->skt_mutex);
-
- return ret;
-} /* suspend_card */
-EXPORT_SYMBOL(pcmcia_suspend_card);
-
-
-int pcmcia_resume_card(struct pcmcia_socket *skt)
-{
- int ret;
-
- dev_dbg(&skt->dev, "waking up socket\n");
-
- mutex_lock(&skt->skt_mutex);
- do {
- if (!(skt->state & SOCKET_PRESENT)) {
- ret = -ENODEV;
- break;
- }
- if (skt->state & SOCKET_CARDBUS) {
- ret = -EPERM;
- break;
- }
- ret = socket_resume(skt);
- if (!ret && skt->callback)
- skt->callback->resume(skt);
- } while (0);
- mutex_unlock(&skt->skt_mutex);
-
- return ret;
-} /* resume_card */
-EXPORT_SYMBOL(pcmcia_resume_card);
-
-
-/* These handle user requests to eject or insert a card. */
-int pcmcia_eject_card(struct pcmcia_socket *skt)
-{
- int ret;
-
- dev_dbg(&skt->dev, "user eject request\n");
-
- mutex_lock(&skt->skt_mutex);
- do {
- if (!(skt->state & SOCKET_PRESENT)) {
- ret = -ENODEV;
- break;
- }
-
- ret = send_event(skt, CS_EVENT_EJECTION_REQUEST, CS_EVENT_PRI_LOW);
- if (ret != 0) {
- ret = -EINVAL;
- break;
- }
-
- socket_remove(skt);
- ret = 0;
- } while (0);
- mutex_unlock(&skt->skt_mutex);
-
- return ret;
-} /* eject_card */
-EXPORT_SYMBOL(pcmcia_eject_card);
-
-
-int pcmcia_insert_card(struct pcmcia_socket *skt)
-{
- int ret;
-
- dev_dbg(&skt->dev, "user insert request\n");
-
- mutex_lock(&skt->skt_mutex);
- do {
- if (skt->state & SOCKET_PRESENT) {
- ret = -EBUSY;
- break;
- }
- if (socket_insert(skt) == -ENODEV) {
- ret = -ENODEV;
- break;
- }
- ret = 0;
- } while (0);
- mutex_unlock(&skt->skt_mutex);
-
- return ret;
-} /* insert_card */
-EXPORT_SYMBOL(pcmcia_insert_card);
-
-
static int pcmcia_socket_uevent(struct device *dev,
struct kobj_uevent_env *env)
{
diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h
index 3bc02d53a3a3..f95864c2191e 100644
--- a/drivers/pcmcia/cs_internal.h
+++ b/drivers/pcmcia/cs_internal.h
@@ -87,37 +87,11 @@ struct pccard_resource_ops {
#define SOCKET_CARDBUS 0x8000
#define SOCKET_CARDBUS_CONFIG 0x10000
-static inline int cs_socket_get(struct pcmcia_socket *skt)
-{
- int ret;
-
- WARN_ON(skt->state & SOCKET_INUSE);
-
- ret = try_module_get(skt->owner);
- if (ret)
- skt->state |= SOCKET_INUSE;
- return ret;
-}
-
-static inline void cs_socket_put(struct pcmcia_socket *skt)
-{
- if (skt->state & SOCKET_INUSE) {
- skt->state &= ~SOCKET_INUSE;
- module_put(skt->owner);
- }
-}
-
/*
* Stuff internal to module "pcmcia_core":
*/
-/* cistpl.c */
-int verify_cis_cache(struct pcmcia_socket *s);
-
-/* rsrc_mgr.c */
-void release_resource_db(struct pcmcia_socket *s);
-
/* socket_sysfs.c */
extern int pccard_sysfs_add_socket(struct device *dev);
extern void pccard_sysfs_remove_socket(struct device *dev);
@@ -125,8 +99,6 @@ extern void pccard_sysfs_remove_socket(struct device *dev);
/* cardbus.c */
int cb_alloc(struct pcmcia_socket *s);
void cb_free(struct pcmcia_socket *s);
-int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len,
- void *ptr);
@@ -138,7 +110,8 @@ struct pcmcia_callback{
struct module *owner;
int (*event) (struct pcmcia_socket *s,
event_t event, int priority);
- void (*requery) (struct pcmcia_socket *s, int new_cis);
+ void (*requery) (struct pcmcia_socket *s);
+ int (*validate) (struct pcmcia_socket *s, unsigned int *i);
int (*suspend) (struct pcmcia_socket *s);
int (*resume) (struct pcmcia_socket *s);
};
@@ -151,16 +124,35 @@ extern struct class pcmcia_socket_class;
int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr);
-int pcmcia_suspend_card(struct pcmcia_socket *skt);
-int pcmcia_resume_card(struct pcmcia_socket *skt);
-
-int pcmcia_eject_card(struct pcmcia_socket *skt);
-int pcmcia_insert_card(struct pcmcia_socket *skt);
+void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events);
+#define PCMCIA_UEVENT_EJECT 0x0001
+#define PCMCIA_UEVENT_INSERT 0x0002
+#define PCMCIA_UEVENT_SUSPEND 0x0004
+#define PCMCIA_UEVENT_RESUME 0x0008
+#define PCMCIA_UEVENT_REQUERY 0x0010
struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
void pcmcia_put_socket(struct pcmcia_socket *skt);
+/*
+ * Stuff internal to module "pcmcia".
+ */
+/* ds.c */
+extern struct bus_type pcmcia_bus_type;
+
+/* pcmcia_resource.c */
+extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
+extern int pcmcia_validate_mem(struct pcmcia_socket *s);
+extern struct resource *pcmcia_find_mem_region(u_long base,
+ u_long num,
+ u_long align,
+ int low,
+ struct pcmcia_socket *s);
+
+
/* cistpl.c */
+extern struct bin_attribute pccard_cis_attr;
+
int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
u_int addr, u_int len, void *ptr);
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
@@ -172,8 +164,8 @@ int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
int pcmcia_replace_cis(struct pcmcia_socket *s,
const u8 *data, const size_t len);
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count);
+int verify_cis_cache(struct pcmcia_socket *s);
-/* loop over CIS entries */
int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
cisdata_t code, cisparse_t *parse, void *priv_data,
int (*loop_tuple) (tuple_t *tuple,
@@ -189,35 +181,8 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple);
-/* rsrc_mgr.c */
-int pcmcia_validate_mem(struct pcmcia_socket *s);
-struct resource *pcmcia_find_io_region(unsigned long base,
- int num,
- unsigned long align,
- struct pcmcia_socket *s);
-int pcmcia_adjust_io_region(struct resource *res,
- unsigned long r_start,
- unsigned long r_end,
- struct pcmcia_socket *s);
-struct resource *pcmcia_find_mem_region(u_long base,
- u_long num,
- u_long align,
- int low,
- struct pcmcia_socket *s);
-
-/*
- * Stuff internal to module "pcmcia".
- */
-/* ds.c */
-extern struct bus_type pcmcia_bus_type;
-
-/* pcmcia_resource.c */
-extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
-
#ifdef CONFIG_PCMCIA_IOCTL
/* ds.c */
-extern spinlock_t pcmcia_dev_list_lock;
-
extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev);
extern void pcmcia_put_dev(struct pcmcia_device *p_dev);
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 1a4a3c49cc15..0f98be4450b7 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -42,8 +42,6 @@ MODULE_DESCRIPTION("PCMCIA Driver Services");
MODULE_LICENSE("GPL");
-spinlock_t pcmcia_dev_list_lock;
-
/*====================================================================*/
static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
@@ -126,9 +124,9 @@ pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count)
dynid->id.device_no = device_no;
memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4);
- spin_lock(&pdrv->dynids.lock);
+ mutex_lock(&pdrv->dynids.lock);
list_add_tail(&dynid->node, &pdrv->dynids.list);
- spin_unlock(&pdrv->dynids.lock);
+ mutex_unlock(&pdrv->dynids.lock);
if (get_driver(&pdrv->drv)) {
retval = driver_attach(&pdrv->drv);
@@ -146,12 +144,12 @@ pcmcia_free_dynids(struct pcmcia_driver *drv)
{
struct pcmcia_dynid *dynid, *n;
- spin_lock(&drv->dynids.lock);
+ mutex_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
- spin_unlock(&drv->dynids.lock);
+ mutex_unlock(&drv->dynids.lock);
}
static int
@@ -182,7 +180,7 @@ int pcmcia_register_driver(struct pcmcia_driver *driver)
/* initialize common fields */
driver->drv.bus = &pcmcia_bus_type;
driver->drv.owner = driver->owner;
- spin_lock_init(&driver->dynids.lock);
+ mutex_init(&driver->dynids.lock);
INIT_LIST_HEAD(&driver->dynids.list);
pr_debug("registering driver %s\n", driver->drv.name);
@@ -239,30 +237,21 @@ static void pcmcia_release_function(struct kref *ref)
static void pcmcia_release_dev(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ int i;
dev_dbg(dev, "releasing device\n");
pcmcia_put_socket(p_dev->socket);
+ for (i = 0; i < 4; i++)
+ kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kref_put(&p_dev->function_config->ref, pcmcia_release_function);
kfree(p_dev);
}
-static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc)
-{
- if (!s->pcmcia_state.device_add_pending) {
- dev_dbg(&s->dev, "scheduling to add %s secondary"
- " device to %d\n", mfc ? "mfc" : "pfc", s->sock);
- s->pcmcia_state.device_add_pending = 1;
- s->pcmcia_state.mfc_pfc = mfc;
- schedule_work(&s->device_add);
- }
- return;
-}
static int pcmcia_device_probe(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
- struct pcmcia_device_id *did;
struct pcmcia_socket *s;
cistpl_config_t cis_config;
int ret = 0;
@@ -275,18 +264,6 @@ static int pcmcia_device_probe(struct device *dev)
p_drv = to_pcmcia_drv(dev->driver);
s = p_dev->socket;
- /* The PCMCIA code passes the match data in via dev_set_drvdata(dev)
- * which is an ugly hack. Once the driver probe is called it may
- * and often will overwrite the match data so we must save it first
- *
- * handle pseudo multifunction devices:
- * there are at most two pseudo multifunction devices.
- * if we're matching against the first, schedule a
- * call which will then check whether there are two
- * pseudo devices, and if not, add the second one.
- */
- did = dev_get_drvdata(&p_dev->dev);
-
dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name);
if ((!p_drv->probe) || (!p_dev->function_config) ||
@@ -315,9 +292,11 @@ static int pcmcia_device_probe(struct device *dev)
goto put_module;
}
- if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
+ mutex_lock(&s->ops_mutex);
+ if ((s->pcmcia_state.has_pfc) &&
(p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
- pcmcia_add_device_later(p_dev->socket, 0);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
+ mutex_unlock(&s->ops_mutex);
put_module:
if (ret)
@@ -336,26 +315,27 @@ static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *le
{
struct pcmcia_device *p_dev;
struct pcmcia_device *tmp;
- unsigned long flags;
dev_dbg(leftover ? &leftover->dev : &s->dev,
"pcmcia_card_remove(%d) %s\n", s->sock,
leftover ? leftover->devname : "");
+ mutex_lock(&s->ops_mutex);
if (!leftover)
s->device_count = 0;
else
s->device_count = 1;
+ mutex_unlock(&s->ops_mutex);
/* unregister all pcmcia_devices registered with this socket, except leftover */
list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
if (p_dev == leftover)
continue;
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
p_dev->_removed = 1;
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "unregistering device\n");
device_unregister(&p_dev->dev);
@@ -368,7 +348,6 @@ static int pcmcia_device_remove(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
- struct pcmcia_device_id *did;
int i;
p_dev = to_pcmcia_dev(dev);
@@ -380,9 +359,8 @@ static int pcmcia_device_remove(struct device *dev)
* pseudo multi-function card, we need to unbind
* all devices
*/
- did = dev_get_drvdata(&p_dev->dev);
- if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
- (p_dev->socket->device_count != 0) &&
+ if ((p_dev->socket->pcmcia_state.has_pfc) &&
+ (p_dev->socket->device_count > 0) &&
(p_dev->device_no == 0))
pcmcia_card_remove(p_dev->socket, p_dev);
@@ -431,16 +409,20 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL,
CISTPL_MANFID, &manf_id)) {
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->manf_id = manf_id.manf;
p_dev->card_id = manf_id.card;
p_dev->has_manf_id = 1;
p_dev->has_card_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_FUNCID, &func_id)) {
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = func_id.func;
p_dev->has_func_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
} else {
/* rule of thumb: cards with no FUNCID, but with
* common memory device geometry information, are
@@ -457,17 +439,21 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
dev_dbg(&p_dev->dev,
"mem device geometry probably means "
"FUNCID_MEMORY\n");
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = CISTPL_FUNCID_MEMORY;
p_dev->has_func_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(devgeo);
}
if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1,
vers1)) {
+ mutex_lock(&p_dev->socket->ops_mutex);
for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) {
char *tmp;
unsigned int length;
+ char *new;
tmp = vers1->str + vers1->ofs[i];
@@ -475,14 +461,17 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
if ((length < 2) || (length > 255))
continue;
- p_dev->prod_id[i] = kmalloc(sizeof(char) * length,
- GFP_KERNEL);
- if (!p_dev->prod_id[i])
+ new = kmalloc(sizeof(char) * length, GFP_KERNEL);
+ if (!new)
continue;
- p_dev->prod_id[i] = strncpy(p_dev->prod_id[i],
- tmp, length);
+ new = strncpy(new, tmp, length);
+
+ tmp = p_dev->prod_id[i];
+ p_dev->prod_id[i] = new;
+ kfree(tmp);
}
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(vers1);
@@ -502,7 +491,7 @@ static DEFINE_MUTEX(device_add_lock);
struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
{
struct pcmcia_device *p_dev, *tmp_dev;
- unsigned long flags;
+ int i;
s = pcmcia_get_socket(s);
if (!s)
@@ -512,16 +501,19 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
pr_debug("adding device to %d, function %d\n", s->sock, function);
- /* max of 4 devices per card */
- if (s->device_count == 4)
- goto err_put;
-
p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
if (!p_dev)
goto err_put;
- p_dev->socket = s;
+ mutex_lock(&s->ops_mutex);
p_dev->device_no = (s->device_count++);
+ mutex_unlock(&s->ops_mutex);
+
+ /* max of 2 devices per card */
+ if (p_dev->device_no >= 2)
+ goto err_free;
+
+ p_dev->socket = s;
p_dev->func = function;
p_dev->dev.bus = &pcmcia_bus_type;
@@ -538,7 +530,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
goto err_free;
dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname);
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
/*
* p_dev->function_config must be the same for all card functions.
@@ -556,7 +548,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
/* Add to the list in pcmcia_bus_socket */
list_add(&p_dev->socket_device_list, &s->devices_list);
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
if (!p_dev->function_config) {
dev_dbg(&p_dev->dev, "creating config_t\n");
@@ -581,14 +573,19 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
return p_dev;
err_unreg:
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
err_free:
+ mutex_lock(&s->ops_mutex);
+ s->device_count--;
+ mutex_unlock(&s->ops_mutex);
+
+ for (i = 0; i < 4; i++)
+ kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kfree(p_dev);
- s->device_count--;
err_put:
mutex_unlock(&device_add_lock);
pcmcia_put_socket(s);
@@ -601,19 +598,23 @@ static int pcmcia_card_add(struct pcmcia_socket *s)
{
cistpl_longlink_mfc_t mfc;
unsigned int no_funcs, i, no_chains;
- int ret = 0;
+ int ret = -EAGAIN;
+ mutex_lock(&s->ops_mutex);
if (!(s->resource_setup_done)) {
dev_dbg(&s->dev,
"no resources available, delaying card_add\n");
+ mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
if (pcmcia_validate_mem(s)) {
dev_dbg(&s->dev, "validating mem resources failed, "
"delaying card_add\n");
+ mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
+ mutex_unlock(&s->ops_mutex);
ret = pccard_validate_cis(s, &no_chains);
if (ret || !no_chains) {
@@ -634,17 +635,7 @@ static int pcmcia_card_add(struct pcmcia_socket *s)
}
-static void pcmcia_delayed_add_device(struct work_struct *work)
-{
- struct pcmcia_socket *s =
- container_of(work, struct pcmcia_socket, device_add);
- dev_dbg(&s->dev, "adding additional device to %d\n", s->sock);
- pcmcia_device_add(s, s->pcmcia_state.mfc_pfc);
- s->pcmcia_state.device_add_pending = 0;
- s->pcmcia_state.mfc_pfc = 0;
-}
-
-static int pcmcia_requery(struct device *dev, void * _data)
+static int pcmcia_requery_callback(struct device *dev, void * _data)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (!p_dev->dev.driver) {
@@ -655,45 +646,67 @@ static int pcmcia_requery(struct device *dev, void * _data)
return 0;
}
-static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis)
-{
- int no_devices = 0;
- int ret = 0;
- unsigned long flags;
- /* must be called with skt_mutex held */
- dev_dbg(&skt->dev, "re-scanning socket %d\n", skt->sock);
+static void pcmcia_requery(struct pcmcia_socket *s)
+{
+ int present, has_pfc;
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- if (list_empty(&skt->devices_list))
- no_devices = 1;
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
+ present = s->pcmcia_state.present;
+ mutex_unlock(&s->ops_mutex);
- /* If this is because of a CIS override, start over */
- if (new_cis && !no_devices)
- pcmcia_card_remove(skt, NULL);
+ if (!present)
+ return;
- /* if no devices were added for this socket yet because of
- * missing resource information or other trouble, we need to
- * do this now. */
- if (no_devices || new_cis) {
- ret = pcmcia_card_add(skt);
- if (ret)
- return;
+ if (s->functions == 0) {
+ pcmcia_card_add(s);
+ return;
}
/* some device information might have changed because of a CIS
* update or because we can finally read it correctly... so
* determine it again, overwriting old values if necessary. */
- bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
+ bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback);
+
+ /* if the CIS changed, we need to check whether the number of
+ * functions changed. */
+ if (s->fake_cis) {
+ int old_funcs, new_funcs;
+ cistpl_longlink_mfc_t mfc;
+
+ /* does this cis override add or remove functions? */
+ old_funcs = s->functions;
+
+ if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
+ &mfc))
+ new_funcs = mfc.nfn;
+ else
+ new_funcs = 1;
+ if (old_funcs > new_funcs) {
+ pcmcia_card_remove(s, NULL);
+ pcmcia_card_add(s);
+ } else if (new_funcs > old_funcs) {
+ s->functions = new_funcs;
+ pcmcia_device_add(s, 1);
+ }
+ }
+
+ /* If the PCMCIA device consists of two pseudo devices,
+ * call pcmcia_device_add() -- which will fail if both
+ * devices are already registered. */
+ mutex_lock(&s->ops_mutex);
+ has_pfc = s->pcmcia_state.has_pfc;
+ mutex_unlock(&s->ops_mutex);
+ if (has_pfc)
+ pcmcia_device_add(s, 0);
/* we re-scan all devices, not just the ones connected to this
* socket. This does not matter, though. */
- ret = bus_rescan_devices(&pcmcia_bus_type);
- if (ret)
- printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n");
+ if (bus_rescan_devices(&pcmcia_bus_type))
+ dev_warn(&s->dev, "rescanning the bus failed\n");
}
+
#ifdef CONFIG_PCMCIA_LOAD_CIS
/**
@@ -710,9 +723,6 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
struct pcmcia_socket *s = dev->socket;
const struct firmware *fw;
int ret = -ENOMEM;
- int no_funcs;
- int old_funcs;
- cistpl_longlink_mfc_t mfc;
if (!filename)
return -EINVAL;
@@ -739,19 +749,8 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
/* update information */
pcmcia_device_query(dev);
- /* does this cis override add or remove functions? */
- old_funcs = s->functions;
-
- if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
- no_funcs = mfc.nfn;
- else
- no_funcs = 1;
- s->functions = no_funcs;
-
- if (old_funcs > no_funcs)
- pcmcia_card_remove(s, dev);
- else if (no_funcs > old_funcs)
- pcmcia_add_device_later(s, 1);
+ /* requery (as number of functions might have changed) */
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
}
release:
release_firmware(fw);
@@ -818,9 +817,14 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
if (dev->device_no != did->device_no)
return 0;
+ mutex_lock(&dev->socket->ops_mutex);
+ dev->socket->pcmcia_state.has_pfc = 1;
+ mutex_unlock(&dev->socket->ops_mutex);
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
+ int ret;
+
if ((!dev->has_func_id) || (dev->func_id != did->func_id))
return 0;
@@ -835,10 +839,15 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
* after it has re-checked that there is no possible module
* with a prod_id/manf_id/card_id match.
*/
- dev_dbg(&dev->dev,
- "skipping FUNC_ID match until userspace interaction\n");
- if (!dev->allow_func_id_match)
+ mutex_lock(&dev->socket->ops_mutex);
+ ret = dev->allow_func_id_match;
+ mutex_unlock(&dev->socket->ops_mutex);
+
+ if (!ret) {
+ dev_dbg(&dev->dev,
+ "skipping FUNC_ID match until userspace ACK\n");
return 0;
+ }
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
@@ -859,8 +868,6 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
return 0;
}
- dev_set_drvdata(&dev->dev, did);
-
return 1;
}
@@ -873,16 +880,16 @@ static int pcmcia_bus_match(struct device *dev, struct device_driver *drv)
struct pcmcia_dynid *dynid;
/* match dynamic devices first */
- spin_lock(&p_drv->dynids.lock);
+ mutex_lock(&p_drv->dynids.lock);
list_for_each_entry(dynid, &p_drv->dynids.list, node) {
dev_dbg(dev, "trying to match to %s\n", drv->name);
if (pcmcia_devmatch(p_dev, &dynid->id)) {
dev_dbg(dev, "matched to %s\n", drv->name);
- spin_unlock(&p_drv->dynids.lock);
+ mutex_unlock(&p_drv->dynids.lock);
return 1;
}
}
- spin_unlock(&p_drv->dynids.lock);
+ mutex_unlock(&p_drv->dynids.lock);
#ifdef CONFIG_PCMCIA_IOCTL
/* matching by cardmgr */
@@ -970,13 +977,14 @@ static int runtime_suspend(struct device *dev)
return rc;
}
-static void runtime_resume(struct device *dev)
+static int runtime_resume(struct device *dev)
{
int rc;
down(&dev->sem);
rc = pcmcia_dev_resume(dev);
up(&dev->sem);
+ return rc;
}
/************************ per-device sysfs output ***************************/
@@ -1027,7 +1035,7 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute
if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
ret = runtime_suspend(dev);
else if (p_dev->suspended && !strncmp(buf, "on", 2))
- runtime_resume(dev);
+ ret = runtime_resume(dev);
return ret ? ret : count;
}
@@ -1059,19 +1067,14 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- int ret;
if (!count)
return -EINVAL;
- mutex_lock(&p_dev->socket->skt_mutex);
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->allow_func_id_match = 1;
- mutex_unlock(&p_dev->socket->skt_mutex);
-
- ret = bus_rescan_devices(&pcmcia_bus_type);
- if (ret)
- printk(KERN_INFO "pcmcia: bus_rescan_devices failed after "
- "allowing func_id matches\n");
+ mutex_unlock(&p_dev->socket->ops_mutex);
+ pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY);
return count;
}
@@ -1099,8 +1102,13 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state)
struct pcmcia_driver *p_drv = NULL;
int ret = 0;
- if (p_dev->suspended)
+ mutex_lock(&p_dev->socket->ops_mutex);
+ if (p_dev->suspended) {
+ mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
+ }
+ p_dev->suspended = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
dev_dbg(dev, "suspending\n");
@@ -1117,6 +1125,9 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state)
"pcmcia: device %s (driver %s) did "
"not want to go to sleep (%d)\n",
p_dev->devname, p_drv->drv.name, ret);
+ mutex_lock(&p_dev->socket->ops_mutex);
+ p_dev->suspended = 0;
+ mutex_unlock(&p_dev->socket->ops_mutex);
goto out;
}
}
@@ -1127,8 +1138,6 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state)
}
out:
- if (!ret)
- p_dev->suspended = 1;
return ret;
}
@@ -1139,8 +1148,13 @@ static int pcmcia_dev_resume(struct device *dev)
struct pcmcia_driver *p_drv = NULL;
int ret = 0;
- if (!p_dev->suspended)
+ mutex_lock(&p_dev->socket->ops_mutex);
+ if (!p_dev->suspended) {
+ mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
+ }
+ p_dev->suspended = 0;
+ mutex_unlock(&p_dev->socket->ops_mutex);
dev_dbg(dev, "resuming\n");
@@ -1161,8 +1175,6 @@ static int pcmcia_dev_resume(struct device *dev)
ret = p_drv->resume(p_dev);
out:
- if (!ret)
- p_dev->suspended = 0;
return ret;
}
@@ -1237,13 +1249,22 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
switch (event) {
case CS_EVENT_CARD_REMOVAL:
+ mutex_lock(&s->ops_mutex);
s->pcmcia_state.present = 0;
+ mutex_unlock(&s->ops_mutex);
pcmcia_card_remove(skt, NULL);
handle_event(skt, event);
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(s);
+ mutex_unlock(&s->ops_mutex);
break;
case CS_EVENT_CARD_INSERTION:
+ mutex_lock(&s->ops_mutex);
+ s->pcmcia_state.has_pfc = 0;
s->pcmcia_state.present = 1;
+ destroy_cis_cache(s); /* to be on the safe side... */
+ mutex_unlock(&s->ops_mutex);
pcmcia_card_add(skt);
handle_event(skt, event);
break;
@@ -1251,8 +1272,24 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
case CS_EVENT_EJECTION_REQUEST:
break;
- case CS_EVENT_PM_SUSPEND:
case CS_EVENT_PM_RESUME:
+ if (verify_cis_cache(skt) != 0) {
+ dev_dbg(&skt->dev, "cis mismatch - different card\n");
+ /* first, remove the card */
+ ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH);
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(skt);
+ kfree(skt->fake_cis);
+ skt->fake_cis = NULL;
+ mutex_unlock(&s->ops_mutex);
+ /* now, add the new card */
+ ds_event(skt, CS_EVENT_CARD_INSERTION,
+ CS_EVENT_PRI_LOW);
+ }
+ handle_event(skt, event);
+ break;
+
+ case CS_EVENT_PM_SUSPEND:
case CS_EVENT_RESET_PHYSICAL:
case CS_EVENT_CARD_RESET:
default:
@@ -1275,9 +1312,13 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
if (!p_dev)
return NULL;
+ mutex_lock(&p_dev->socket->ops_mutex);
if (!p_dev->socket->pcmcia_state.present)
goto out;
+ if (p_dev->socket->pcmcia_state.dead)
+ goto out;
+
if (p_dev->_removed)
goto out;
@@ -1286,6 +1327,7 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
ret = p_dev;
out:
+ mutex_unlock(&p_dev->socket->ops_mutex);
pcmcia_put_dev(p_dev);
return ret;
}
@@ -1295,7 +1337,8 @@ EXPORT_SYMBOL(pcmcia_dev_present);
static struct pcmcia_callback pcmcia_bus_callback = {
.owner = THIS_MODULE,
.event = ds_event,
- .requery = pcmcia_bus_rescan,
+ .requery = pcmcia_requery,
+ .validate = pccard_validate_cis,
.suspend = pcmcia_bus_suspend,
.resume = pcmcia_bus_resume,
};
@@ -1313,17 +1356,17 @@ static int __devinit pcmcia_bus_add_socket(struct device *dev,
return -ENODEV;
}
- /*
- * Ugly. But we want to wait for the socket threads to have started up.
- * We really should let the drivers themselves drive some of this..
- */
- msleep(250);
+ ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
+ if (ret) {
+ dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n");
+ pcmcia_put_socket(socket);
+ return ret;
+ }
#ifdef CONFIG_PCMCIA_IOCTL
init_waitqueue_head(&socket->queue);
#endif
INIT_LIST_HEAD(&socket->devices_list);
- INIT_WORK(&socket->device_add, pcmcia_delayed_add_device);
memset(&socket->pcmcia_state, 0, sizeof(u8));
socket->device_count = 0;
@@ -1345,14 +1388,20 @@ static void pcmcia_bus_remove_socket(struct device *dev,
if (!socket)
return;
+ mutex_lock(&socket->ops_mutex);
socket->pcmcia_state.dead = 1;
+ mutex_unlock(&socket->ops_mutex);
+
pccard_register_pcmcia(socket, NULL);
/* unregister any unbound devices */
mutex_lock(&socket->skt_mutex);
pcmcia_card_remove(socket, NULL);
+ release_cis_mem(socket);
mutex_unlock(&socket->skt_mutex);
+ sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
+
pcmcia_put_socket(socket);
return;
@@ -1383,8 +1432,6 @@ static int __init init_pcmcia_bus(void)
{
int ret;
- spin_lock_init(&pcmcia_dev_list_lock);
-
ret = bus_register(&pcmcia_bus_type);
if (ret < 0) {
printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c
index d187ba4c5e0e..89cfddca089a 100644
--- a/drivers/pcmcia/electra_cf.c
+++ b/drivers/pcmcia/electra_cf.c
@@ -347,7 +347,7 @@ static int __devexit electra_cf_remove(struct of_device *ofdev)
return 0;
}
-static struct of_device_id electra_cf_match[] = {
+static const struct of_device_id electra_cf_match[] = {
{
.compatible = "electra-cf",
},
diff --git a/drivers/pcmcia/i82365.h b/drivers/pcmcia/i82365.h
index 622860c689d9..849ef1b5d687 100644
--- a/drivers/pcmcia/i82365.h
+++ b/drivers/pcmcia/i82365.h
@@ -77,8 +77,8 @@
#define I365_VPP2_5V 0x04 /* Vpp2 = 5.0v */
#define I365_VPP2_12V 0x08 /* Vpp2 = 12.0v */
#define I365_VPP1_MASK 0x03 /* Mask for turning off Vpp1 */
-#define I365_VPP1_5V 0x01 /* Vpp2 = 5.0v */
-#define I365_VPP1_12V 0x02 /* Vpp2 = 12.0v */
+#define I365_VPP1_5V 0x01 /* Vpp1 = 5.0v */
+#define I365_VPP1_12V 0x02 /* Vpp1 = 12.0v */
/* Flags for I365_INTCTL */
#define I365_RING_ENA 0x80
diff --git a/drivers/pcmcia/m32r_cfc.c b/drivers/pcmcia/m32r_cfc.c
index 26a621c9e2fc..0ece2cd4a85e 100644
--- a/drivers/pcmcia/m32r_cfc.c
+++ b/drivers/pcmcia/m32r_cfc.c
@@ -764,7 +764,7 @@ static int __init init_m32r_pcc(void)
for (i = 0 ; i < pcc_sockets ; i++) {
socket[i].socket.dev.parent = &pcc_device.dev;
socket[i].socket.ops = &pcc_operations;
- socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+ socket[i].socket.resource_ops = &pccard_static_ops;
socket[i].socket.owner = THIS_MODULE;
socket[i].number = i;
ret = pcmcia_register_socket(&socket[i].socket);
diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c
index 7f79c4e169ae..61c215918128 100644
--- a/drivers/pcmcia/m8xx_pcmcia.c
+++ b/drivers/pcmcia/m8xx_pcmcia.c
@@ -1233,7 +1233,7 @@ static int __init m8xx_probe(struct of_device *ofdev,
socket[i].socket.io_offset = 0;
socket[i].socket.pci_irq = pcmcia_schlvl;
socket[i].socket.ops = &m8xx_services;
- socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+ socket[i].socket.resource_ops = &pccard_iodyn_ops;
socket[i].socket.cb_dev = NULL;
socket[i].socket.dev.parent = &ofdev->dev;
socket[i].pcmcia = pcmcia;
@@ -1303,7 +1303,7 @@ static int m8xx_resume(struct platform_device *pdev)
#define m8xx_resume NULL
#endif
-static struct of_device_id m8xx_pcmcia_match[] = {
+static const struct of_device_id m8xx_pcmcia_match[] = {
{
.type = "pcmcia",
.compatible = "fsl,pq-pcmcia",
diff --git a/drivers/pcmcia/o2micro.h b/drivers/pcmcia/o2micro.h
index 624442fc0d35..e74bebac2695 100644
--- a/drivers/pcmcia/o2micro.h
+++ b/drivers/pcmcia/o2micro.h
@@ -116,13 +116,12 @@ static int o2micro_override(struct yenta_socket *socket)
* from Eric Still, 02Micro.
*/
u8 a, b;
+ bool use_speedup;
if (PCI_FUNC(socket->dev->devfn) == 0) {
a = config_readb(socket, O2_RESERVED1);
b = config_readb(socket, O2_RESERVED2);
-
- dev_printk(KERN_INFO, &socket->dev->dev,
- "O2: res at 0x94/0xD4: %02x/%02x\n", a, b);
+ dev_dbg(&socket->dev->dev, "O2: 0x94/0xD4: %02x/%02x\n", a, b);
switch (socket->dev->device) {
/*
@@ -135,23 +134,37 @@ static int o2micro_override(struct yenta_socket *socket)
case PCI_DEVICE_ID_O2_6812:
case PCI_DEVICE_ID_O2_6832:
case PCI_DEVICE_ID_O2_6836:
- case PCI_DEVICE_ID_O2_6933:
- dev_printk(KERN_INFO, &socket->dev->dev,
- "Yenta O2: old bridge, disabling read "
- "prefetch/write burst\n");
- config_writeb(socket, O2_RESERVED1,
- a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
- config_writeb(socket, O2_RESERVED2,
- b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
+ case PCI_DEVICE_ID_O2_6933:
+ use_speedup = false;
break;
-
default:
- dev_printk(KERN_INFO , &socket->dev->dev,
- "O2: enabling read prefetch/write burst\n");
+ use_speedup = true;
+ break;
+ }
+
+ /* the user may override our decision */
+ if (strcasecmp(o2_speedup, "on") == 0)
+ use_speedup = true;
+ else if (strcasecmp(o2_speedup, "off") == 0)
+ use_speedup = false;
+ else if (strcasecmp(o2_speedup, "default") != 0)
+ dev_warn(&socket->dev->dev,
+ "O2: Unknown parameter, using 'default'");
+
+ if (use_speedup) {
+ dev_info(&socket->dev->dev,
+ "O2: enabling read prefetch/write burst\n");
+ config_writeb(socket, O2_RESERVED1,
+ a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+ config_writeb(socket, O2_RESERVED2,
+ b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+ } else {
+ dev_info(&socket->dev->dev,
+ "O2: disabling read prefetch/write burst\n");
config_writeb(socket, O2_RESERVED1,
- a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+ a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
config_writeb(socket, O2_RESERVED2,
- b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+ b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
}
}
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index 663781d20129..3ef991552398 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -71,8 +71,6 @@ struct omap_cf_socket {
#define POLL_INTERVAL (2 * HZ)
-#define SZ_2K (2 * SZ_1K)
-
/*--------------------------------------------------------------------------*/
static int omap_cf_ss_init(struct pcmcia_socket *s)
diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index f73fd5beaa37..13a7132cf688 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -62,16 +62,15 @@ static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s,
unsigned int function)
{
struct pcmcia_device *p_dev = NULL;
- unsigned long flags;
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
if (p_dev->func == function) {
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
return pcmcia_get_dev(p_dev);
}
}
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
return NULL;
}
@@ -169,7 +168,6 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
{
struct pcmcia_socket *s;
int ret = -ENOSYS;
- unsigned long flags;
down_read(&pcmcia_socket_list_rwsem);
list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
@@ -182,14 +180,13 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
/* you can't use the old interface if the new
* one was used before */
- spin_lock_irqsave(&s->lock, flags);
+ mutex_lock(&s->ops_mutex);
if ((s->resource_setup_new) &&
!(s->resource_setup_old)) {
- spin_unlock_irqrestore(&s->lock, flags);
+ mutex_unlock(&s->ops_mutex);
continue;
} else if (!(s->resource_setup_old))
s->resource_setup_old = 1;
- spin_unlock_irqrestore(&s->lock, flags);
switch (adj->Resource) {
case RES_MEMORY_RANGE:
@@ -208,10 +205,9 @@ static int pcmcia_adjust_resource_info(adjust_t *adj)
* last call to adjust_resource_info, we
* always need to assume this is the latest
* one... */
- spin_lock_irqsave(&s->lock, flags);
s->resource_setup_done = 1;
- spin_unlock_irqrestore(&s->lock, flags);
}
+ mutex_unlock(&s->ops_mutex);
}
}
up_read(&pcmcia_socket_list_rwsem);
@@ -470,7 +466,6 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
struct pcmcia_driver *p_drv;
struct pcmcia_device *p_dev;
int ret = 0;
- unsigned long flags;
s = pcmcia_get_socket(s);
if (!s)
@@ -490,7 +485,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
goto err_put_driver;
}
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
if (p_dev->func == bind_info->function) {
if ((p_dev->dev.driver == &p_drv->drv)) {
@@ -499,7 +494,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
* registered, and it was registered
* by userspace before, we need to
* return the "instance". */
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
bind_info->instance = p_dev;
ret = -EBUSY;
goto err_put_module;
@@ -507,7 +502,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
/* the correct driver managed to bind
* itself magically to the correct
* device. */
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
p_dev->cardmgr = p_drv;
ret = 0;
goto err_put_module;
@@ -516,12 +511,12 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info)
/* there's already a device available where
* no device has been bound to yet. So we don't
* need to register a device! */
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
goto rescan;
}
}
}
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
p_dev = pcmcia_device_add(s, bind_info->function);
if (!p_dev) {
@@ -578,7 +573,6 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
dev_node_t *node;
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
- unsigned long flags;
int ret = 0;
#ifdef CONFIG_CARDBUS
@@ -617,7 +611,7 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
}
#endif
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
if (p_dev->func == bind_info->function) {
p_dev = pcmcia_get_dev(p_dev);
@@ -626,11 +620,11 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int
goto found;
}
}
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
return -ENODEV;
found:
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
p_drv = to_pcmcia_drv(p_dev->dev.driver);
if (p_drv && !p_dev->_locked) {
@@ -931,16 +925,16 @@ static int ds_ioctl(struct inode *inode, struct file *file,
ret = pccard_validate_cis(s, &buf->cisinfo.Chains);
break;
case DS_SUSPEND_CARD:
- ret = pcmcia_suspend_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
break;
case DS_RESUME_CARD:
- ret = pcmcia_resume_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
break;
case DS_EJECT_CARD:
- err = pcmcia_eject_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
break;
case DS_INSERT_CARD:
- err = pcmcia_insert_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
break;
case DS_ACCESS_CONFIGURATION_REGISTER:
if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) {
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index d5db95644b64..b2df04199a21 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -43,6 +43,39 @@ module_param(io_speed, int, 0444);
static u8 pcmcia_used_irq[NR_IRQS];
#endif
+static int pcmcia_adjust_io_region(struct resource *res, unsigned long start,
+ unsigned long end, struct pcmcia_socket *s)
+{
+ if (s->resource_ops->adjust_io_region)
+ return s->resource_ops->adjust_io_region(res, start, end, s);
+ return -ENOMEM;
+}
+
+static struct resource *pcmcia_find_io_region(unsigned long base, int num,
+ unsigned long align,
+ struct pcmcia_socket *s)
+{
+ if (s->resource_ops->find_io)
+ return s->resource_ops->find_io(base, num, align, s);
+ return NULL;
+}
+
+int pcmcia_validate_mem(struct pcmcia_socket *s)
+{
+ if (s->resource_ops->validate_mem)
+ return s->resource_ops->validate_mem(s);
+ /* if there is no callback, we can assume that everything is OK */
+ return 0;
+}
+
+struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
+ int low, struct pcmcia_socket *s)
+{
+ if (s->resource_ops->find_mem)
+ return s->resource_ops->find_mem(base, num, align, low, s);
+ return NULL;
+}
+
/** alloc_io_space
*
@@ -158,14 +191,18 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
return -EINVAL;
s = p_dev->socket;
+
+ mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (!(c->state & CONFIG_LOCKED)) {
dev_dbg(&s->dev, "Configuration isnt't locked\n");
+ mutex_unlock(&s->ops_mutex);
return -EACCES;
}
addr = (c->ConfigBase + reg->Offset) >> 1;
+ mutex_unlock(&s->ops_mutex);
switch (reg->Action) {
case CS_READ:
@@ -190,6 +227,7 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
memreq_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
+ int ret;
wh--;
if (wh >= MAX_WIN)
@@ -198,12 +236,13 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
dev_dbg(&s->dev, "failure: requested page is zero\n");
return -EINVAL;
}
+ mutex_lock(&s->ops_mutex);
s->win[wh].card_start = req->CardOffset;
- if (s->ops->set_mem_map(s, &s->win[wh]) != 0) {
- dev_dbg(&s->dev, "failed to set_mem_map\n");
- return -EIO;
- }
- return 0;
+ ret = s->ops->set_mem_map(s, &s->win[wh]);
+ if (ret)
+ dev_warn(&s->dev, "failed to set_mem_map\n");
+ mutex_unlock(&s->ops_mutex);
+ return ret;
} /* pcmcia_map_mem_page */
EXPORT_SYMBOL(pcmcia_map_mem_page);
@@ -219,14 +258,18 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
config_t *c;
s = p_dev->socket;
+
+ mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&s->dev, "No card present\n");
+ mutex_unlock(&s->ops_mutex);
return -ENODEV;
}
if (!(c->state & CONFIG_LOCKED)) {
dev_dbg(&s->dev, "Configuration isnt't locked\n");
+ mutex_unlock(&s->ops_mutex);
return -EACCES;
}
@@ -251,10 +294,12 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
(mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
if (mod->Vpp1 != mod->Vpp2) {
dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
+ mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
s->socket.Vpp = mod->Vpp1;
if (s->ops->set_socket(s, &s->socket)) {
+ mutex_unlock(&s->ops_mutex);
dev_printk(KERN_WARNING, &s->dev,
"Unable to set VPP\n");
return -EIO;
@@ -262,6 +307,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
} else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
(mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
+ mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
@@ -286,6 +332,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
s->ops->set_io_map(s, &io_on);
}
}
+ mutex_unlock(&s->ops_mutex);
return 0;
} /* modify_configuration */
@@ -296,9 +343,11 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev)
{
pccard_io_map io = { 0, 0, 0, 0, 1 };
struct pcmcia_socket *s = p_dev->socket;
- config_t *c = p_dev->function_config;
+ config_t *c;
int i;
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
if (p_dev->_locked) {
p_dev->_locked = 0;
if (--(s->lock_count) == 0) {
@@ -321,6 +370,7 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev)
s->ops->set_io_map(s, &io);
}
}
+ mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_release_configuration */
@@ -337,10 +387,14 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev)
static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
- config_t *c = p_dev->function_config;
+ int ret = -EINVAL;
+ config_t *c;
+
+ mutex_lock(&s->ops_mutex);
+ c = p_dev->function_config;
if (!p_dev->_io)
- return -EINVAL;
+ goto out;
p_dev->_io = 0;
@@ -348,7 +402,7 @@ static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
(c->io.NumPorts1 != req->NumPorts1) ||
(c->io.BasePort2 != req->BasePort2) ||
(c->io.NumPorts2 != req->NumPorts2))
- return -EINVAL;
+ goto out;
c->state &= ~CONFIG_IO_REQ;
@@ -356,28 +410,38 @@ static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
if (req->NumPorts2)
release_io_space(s, req->BasePort2, req->NumPorts2);
- return 0;
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_release_io */
static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
- config_t *c = p_dev->function_config;
+ config_t *c;
+ int ret = -EINVAL;
+
+ mutex_lock(&s->ops_mutex);
+
+ c = p_dev->function_config;
if (!p_dev->_irq)
- return -EINVAL;
+ goto out;
+
p_dev->_irq = 0;
if (c->state & CONFIG_LOCKED)
- return -EACCES;
+ goto out;
+
if (c->irq.Attributes != req->Attributes) {
dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
- return -EINVAL;
+ goto out;
}
if (s->irq.AssignedIRQ != req->AssignedIRQ) {
dev_dbg(&s->dev, "IRQ must match assigned one\n");
- return -EINVAL;
+ goto out;
}
if (--s->irq.Config == 0) {
c->state &= ~CONFIG_IRQ_REQ;
@@ -390,8 +454,12 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
#ifdef CONFIG_PCMCIA_PROBE
pcmcia_used_irq[req->AssignedIRQ]--;
#endif
+ ret = 0;
- return 0;
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_release_irq */
@@ -404,10 +472,12 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
if (wh >= MAX_WIN)
return -EINVAL;
+ mutex_lock(&s->ops_mutex);
win = &s->win[wh];
if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
dev_dbg(&s->dev, "not releasing unknown window\n");
+ mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
@@ -423,6 +493,7 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
win->res = NULL;
}
p_dev->_win &= ~CLIENT_WIN_REQ(wh);
+ mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_release_window */
@@ -445,8 +516,11 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
return -EINVAL;
}
+
+ mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED) {
+ mutex_unlock(&s->ops_mutex);
dev_dbg(&s->dev, "Configuration is locked\n");
return -EACCES;
}
@@ -454,6 +528,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
/* Do power control. We don't allow changes in Vcc. */
s->socket.Vpp = req->Vpp;
if (s->ops->set_socket(s, &s->socket)) {
+ mutex_unlock(&s->ops_mutex);
dev_printk(KERN_WARNING, &s->dev,
"Unable to set socket state\n");
return -EINVAL;
@@ -476,6 +551,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
s->socket.io_irq = 0;
s->ops->set_socket(s, &s->socket);
s->lock_count++;
+ mutex_unlock(&s->ops_mutex);
/* Set up CIS configuration registers */
base = c->ConfigBase = req->ConfigBase;
@@ -524,6 +600,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
/* Configure I/O windows */
if (c->state & CONFIG_IO_REQ) {
+ mutex_lock(&s->ops_mutex);
iomap.speed = io_speed;
for (i = 0; i < MAX_IO_WIN; i++)
if (s->io[i].res) {
@@ -542,6 +619,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
s->ops->set_io_map(s, &iomap);
s->io[i].Config++;
}
+ mutex_unlock(&s->ops_mutex);
}
c->state |= CONFIG_LOCKED;
@@ -560,54 +638,65 @@ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
{
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
+ int ret = -EINVAL;
+
+ mutex_lock(&s->ops_mutex);
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&s->dev, "No card present\n");
- return -ENODEV;
+ goto out;
}
if (!req)
- return -EINVAL;
+ goto out;
+
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED) {
dev_dbg(&s->dev, "Configuration is locked\n");
- return -EACCES;
+ goto out;
}
if (c->state & CONFIG_IO_REQ) {
dev_dbg(&s->dev, "IO already configured\n");
- return -EBUSY;
+ goto out;
}
if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
- return -EINVAL;
+ goto out;
}
if ((req->NumPorts2 > 0) &&
(req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
- return -EINVAL;
+ goto out;
}
dev_dbg(&s->dev, "trying to allocate resource 1\n");
- if (alloc_io_space(s, req->Attributes1, &req->BasePort1,
- req->NumPorts1, req->IOAddrLines)) {
+ ret = alloc_io_space(s, req->Attributes1, &req->BasePort1,
+ req->NumPorts1, req->IOAddrLines);
+ if (ret) {
dev_dbg(&s->dev, "allocation of resource 1 failed\n");
- return -EBUSY;
+ goto out;
}
if (req->NumPorts2) {
dev_dbg(&s->dev, "trying to allocate resource 2\n");
- if (alloc_io_space(s, req->Attributes2, &req->BasePort2,
- req->NumPorts2, req->IOAddrLines)) {
+ ret = alloc_io_space(s, req->Attributes2, &req->BasePort2,
+ req->NumPorts2, req->IOAddrLines);
+ if (ret) {
dev_dbg(&s->dev, "allocation of resource 2 failed\n");
release_io_space(s, req->BasePort1, req->NumPorts1);
- return -EBUSY;
+ goto out;
}
}
c->io = *req;
c->state |= CONFIG_IO_REQ;
p_dev->_io = 1;
- return 0;
+ dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret);
+
+out:
+ mutex_unlock(&s->ops_mutex);
+
+ return ret;
} /* pcmcia_request_io */
EXPORT_SYMBOL(pcmcia_request_io);
@@ -636,18 +725,20 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
int ret = -EINVAL, irq = 0;
int type;
+ mutex_lock(&s->ops_mutex);
+
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&s->dev, "No card present\n");
- return -ENODEV;
+ goto out;
}
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED) {
dev_dbg(&s->dev, "Configuration is locked\n");
- return -EACCES;
+ goto out;
}
if (c->state & CONFIG_IRQ_REQ) {
dev_dbg(&s->dev, "IRQ already configured\n");
- return -EBUSY;
+ goto out;
}
/* Decide what type of interrupt we are registering */
@@ -708,7 +799,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
if (ret && !s->irq.AssignedIRQ) {
if (!s->pci_irq) {
dev_printk(KERN_INFO, &s->dev, "no IRQ found\n");
- return ret;
+ goto out;
}
type = IRQF_SHARED;
irq = s->pci_irq;
@@ -720,7 +811,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
if (ret) {
dev_printk(KERN_INFO, &s->dev,
"request_irq() failed\n");
- return ret;
+ goto out;
}
}
@@ -743,7 +834,10 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
pcmcia_used_irq[irq]++;
#endif
- return 0;
+ ret = 0;
+out:
+ mutex_unlock(&s->ops_mutex);
+ return ret;
} /* pcmcia_request_irq */
EXPORT_SYMBOL(pcmcia_request_irq);
@@ -796,6 +890,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
return -EINVAL;
}
+ mutex_lock(&s->ops_mutex);
win = &s->win[w];
if (!(s->features & SS_CAP_STATIC_MAP)) {
@@ -803,6 +898,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
(req->Attributes & WIN_MAP_BELOW_1MB), s);
if (!win->res) {
dev_dbg(&s->dev, "allocating mem region failed\n");
+ mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
}
@@ -821,8 +917,10 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
if (req->Attributes & WIN_USE_WAIT)
win->flags |= MAP_USE_WAIT;
win->card_start = 0;
+
if (s->ops->set_mem_map(s, win) != 0) {
dev_dbg(&s->dev, "failed to set memory mapping\n");
+ mutex_unlock(&s->ops_mutex);
return -EIO;
}
s->state |= SOCKET_WIN_REQ(w);
@@ -833,6 +931,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha
else
req->Base = win->res->start;
+ mutex_unlock(&s->ops_mutex);
*wh = w + 1;
return 0;
diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c
index f8401a0ef89b..e6f7d410aed6 100644
--- a/drivers/pcmcia/rsrc_mgr.c
+++ b/drivers/pcmcia/rsrc_mgr.c
@@ -21,60 +21,12 @@
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
-
-int pcmcia_validate_mem(struct pcmcia_socket *s)
-{
- if (s->resource_ops->validate_mem)
- return s->resource_ops->validate_mem(s);
- /* if there is no callback, we can assume that everything is OK */
- return 0;
-}
-EXPORT_SYMBOL(pcmcia_validate_mem);
-
-int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start,
- unsigned long r_end, struct pcmcia_socket *s)
-{
- if (s->resource_ops->adjust_io_region)
- return s->resource_ops->adjust_io_region(res, r_start, r_end, s);
- return -ENOMEM;
-}
-EXPORT_SYMBOL(pcmcia_adjust_io_region);
-
-struct resource *pcmcia_find_io_region(unsigned long base, int num,
- unsigned long align, struct pcmcia_socket *s)
-{
- if (s->resource_ops->find_io)
- return s->resource_ops->find_io(base, num, align, s);
- return NULL;
-}
-EXPORT_SYMBOL(pcmcia_find_io_region);
-
-struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
- int low, struct pcmcia_socket *s)
-{
- if (s->resource_ops->find_mem)
- return s->resource_ops->find_mem(base, num, align, low, s);
- return NULL;
-}
-EXPORT_SYMBOL(pcmcia_find_mem_region);
-
-void release_resource_db(struct pcmcia_socket *s)
-{
- if (s->resource_ops->exit)
- s->resource_ops->exit(s);
-}
-
-
static int static_init(struct pcmcia_socket *s)
{
- unsigned long flags;
-
/* the good thing about SS_CAP_STATIC_MAP sockets is
* that they don't need a resource database */
- spin_lock_irqsave(&s->lock, flags);
s->resource_setup_done = 1;
- spin_unlock_irqrestore(&s->lock, flags);
return 0;
}
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index c67638fe6914..4663b3fa9f96 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -55,11 +55,10 @@ struct resource_map {
struct socket_data {
struct resource_map mem_db;
+ struct resource_map mem_db_valid;
struct resource_map io_db;
- unsigned int rsrc_mem_probe;
};
-static DEFINE_MUTEX(rsrc_mutex);
#define MEM_PROBE_LOW (1 << 0)
#define MEM_PROBE_HIGH (1 << 1)
@@ -125,8 +124,10 @@ static int add_interval(struct resource_map *map, u_long base, u_long num)
struct resource_map *p, *q;
for (p = map; ; p = p->next) {
- if ((p != map) && (p->base+p->num-1 >= base))
- return -1;
+ if ((p != map) && (p->base+p->num >= base)) {
+ p->num = max(num + base - p->base, p->num);
+ return 0;
+ }
if ((p->next == map) || (p->next->base > base+num-1))
break;
}
@@ -264,36 +265,44 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
}
#endif
-/*======================================================================
-
- This is tricky... when we set up CIS memory, we try to validate
- the memory window space allocations.
-
-======================================================================*/
+/*======================================================================*/
-/* Validation function for cards with a valid CIS */
+/**
+ * readable() - iomem validation function for cards with a valid CIS
+ */
static int readable(struct pcmcia_socket *s, struct resource *res,
unsigned int *count)
{
- int ret = -1;
+ int ret = -EINVAL;
+
+ if (s->fake_cis) {
+ dev_dbg(&s->dev, "fake CIS is being used: can't validate mem\n");
+ return 0;
+ }
s->cis_mem.res = res;
s->cis_virt = ioremap(res->start, s->map_size);
if (s->cis_virt) {
- ret = pccard_validate_cis(s, count);
- /* invalidate mapping and CIS cache */
+ mutex_unlock(&s->ops_mutex);
+ /* as we're only called from pcmcia.c, we're safe */
+ if (s->callback->validate)
+ ret = s->callback->validate(s, count);
+ /* invalidate mapping */
+ mutex_lock(&s->ops_mutex);
iounmap(s->cis_virt);
s->cis_virt = NULL;
- destroy_cis_cache(s);
}
s->cis_mem.res = NULL;
- if ((ret != 0) || (*count == 0))
- return 0;
- return 1;
+ if ((ret) || (*count == 0))
+ return -EINVAL;
+ return 0;
}
-/* Validation function for simple memory cards */
-static int checksum(struct pcmcia_socket *s, struct resource *res)
+/**
+ * checksum() - iomem validation function for simple memory cards
+ */
+static int checksum(struct pcmcia_socket *s, struct resource *res,
+ unsigned int *value)
{
pccard_mem_map map;
int i, a = 0, b = -1, d;
@@ -321,61 +330,90 @@ static int checksum(struct pcmcia_socket *s, struct resource *res)
iounmap(virt);
}
- return (b == -1) ? -1 : (a>>1);
+ if (b == -1)
+ return -EINVAL;
+
+ *value = a;
+
+ return 0;
}
-static int
-cis_readable(struct pcmcia_socket *s, unsigned long base, unsigned long size)
+/**
+ * do_validate_mem() - low level validate a memory region for PCMCIA use
+ * @s: PCMCIA socket to validate
+ * @base: start address of resource to check
+ * @size: size of resource to check
+ * @validate: validation function to use
+ *
+ * do_validate_mem() splits up the memory region which is to be checked
+ * into two parts. Both are passed to the @validate() function. If
+ * @validate() returns non-zero, or the value parameter to @validate()
+ * is zero, or the value parameter is different between both calls,
+ * the check fails, and -EINVAL is returned. Else, 0 is returned.
+ */
+static int do_validate_mem(struct pcmcia_socket *s,
+ unsigned long base, unsigned long size,
+ int validate (struct pcmcia_socket *s,
+ struct resource *res,
+ unsigned int *value))
{
+ struct socket_data *s_data = s->resource_data;
struct resource *res1, *res2;
- unsigned int info1, info2;
- int ret = 0;
+ unsigned int info1 = 1, info2 = 1;
+ int ret = -EINVAL;
res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe");
res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM,
"PCMCIA memprobe");
if (res1 && res2) {
- ret = readable(s, res1, &info1);
- ret += readable(s, res2, &info2);
+ ret = 0;
+ if (validate) {
+ ret = validate(s, res1, &info1);
+ ret += validate(s, res2, &info2);
+ }
}
free_region(res2);
free_region(res1);
- return (ret == 2) && (info1 == info2);
-}
+ dev_dbg(&s->dev, "cs: memory probe 0x%06lx-0x%06lx: %p %p %u %u %u",
+ base, base+size-1, res1, res2, ret, info1, info2);
-static int
-checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size)
-{
- struct resource *res1, *res2;
- int a = -1, b = -1;
-
- res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe");
- res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM,
- "PCMCIA memprobe");
+ if ((ret) || (info1 != info2) || (info1 == 0))
+ return -EINVAL;
- if (res1 && res2) {
- a = checksum(s, res1);
- b = checksum(s, res2);
+ if (validate && !s->fake_cis) {
+ /* move it to the validated data set */
+ add_interval(&s_data->mem_db_valid, base, size);
+ sub_interval(&s_data->mem_db, base, size);
}
- free_region(res2);
- free_region(res1);
-
- return (a == b) && (a >= 0);
+ return 0;
}
-/*======================================================================
-
- The memory probe. If the memory list includes a 64K-aligned block
- below 1MB, we probe in 64K chunks, and as soon as we accumulate at
- least mem_limit free space, we quit.
-
-======================================================================*/
-static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
+/**
+ * do_mem_probe() - validate a memory region for PCMCIA use
+ * @s: PCMCIA socket to validate
+ * @base: start address of resource to check
+ * @num: size of resource to check
+ * @validate: validation function to use
+ * @fallback: validation function to use if validate fails
+ *
+ * do_mem_probe() checks a memory region for use by the PCMCIA subsystem.
+ * To do so, the area is split up into sensible parts, and then passed
+ * into the @validate() function. Only if @validate() and @fallback() fail,
+ * the area is marked as unavaibale for use by the PCMCIA subsystem. The
+ * function returns the size of the usable memory area.
+ */
+static int do_mem_probe(struct pcmcia_socket *s, u_long base, u_long num,
+ int validate (struct pcmcia_socket *s,
+ struct resource *res,
+ unsigned int *value),
+ int fallback (struct pcmcia_socket *s,
+ struct resource *res,
+ unsigned int *value))
{
struct socket_data *s_data = s->resource_data;
u_long i, j, bad, fail, step;
@@ -393,15 +431,14 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
for (i = j = base; i < base+num; i = j + step) {
if (!fail) {
for (j = i; j < base+num; j += step) {
- if (cis_readable(s, j, step))
+ if (!do_validate_mem(s, j, step, validate))
break;
}
fail = ((i == base) && (j == base+num));
}
- if (fail) {
- for (j = i; j < base+num; j += 2*step)
- if (checksum_match(s, j, step) &&
- checksum_match(s, j + step, step))
+ if ((fail) && (fallback)) {
+ for (j = i; j < base+num; j += step)
+ if (!do_validate_mem(s, j, step, fallback))
break;
}
if (i != j) {
@@ -416,8 +453,14 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
return num - bad;
}
+
#ifdef CONFIG_PCMCIA_PROBE
+/**
+ * inv_probe() - top-to-bottom search for one usuable high memory area
+ * @s: PCMCIA socket to validate
+ * @m: resource_map to check
+ */
static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s)
{
struct socket_data *s_data = s->resource_data;
@@ -432,9 +475,18 @@ static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s)
}
if (m->base < 0x100000)
return 0;
- return do_mem_probe(m->base, m->num, s);
+ return do_mem_probe(s, m->base, m->num, readable, checksum);
}
+/**
+ * validate_mem() - memory probe function
+ * @s: PCMCIA socket to validate
+ * @probe_mask: MEM_PROBE_LOW | MEM_PROBE_HIGH
+ *
+ * The memory probe. If the memory list includes a 64K-aligned block
+ * below 1MB, we probe in 64K chunks, and as soon as we accumulate at
+ * least mem_limit free space, we quit. Returns 0 on usuable ports.
+ */
static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
{
struct resource_map *m, mm;
@@ -446,6 +498,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
if (probe_mask & MEM_PROBE_HIGH) {
if (inv_probe(s_data->mem_db.next, s) > 0)
return 0;
+ if (s_data->mem_db_valid.next != &s_data->mem_db_valid)
+ return 0;
dev_printk(KERN_NOTICE, &s->dev,
"cs: warning: no high memory space available!\n");
return -ENODEV;
@@ -457,7 +511,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
if (mm.base >= 0x100000)
continue;
if ((mm.base | mm.num) & 0xffff) {
- ok += do_mem_probe(mm.base, mm.num, s);
+ ok += do_mem_probe(s, mm.base, mm.num, readable,
+ checksum);
continue;
}
/* Special probe for 64K-aligned block */
@@ -467,7 +522,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
if (ok >= mem_limit)
sub_interval(&s_data->mem_db, b, 0x10000);
else
- ok += do_mem_probe(b, 0x10000, s);
+ ok += do_mem_probe(s, b, 0x10000,
+ readable, checksum);
}
}
}
@@ -480,6 +536,13 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
#else /* CONFIG_PCMCIA_PROBE */
+/**
+ * validate_mem() - memory probe function
+ * @s: PCMCIA socket to validate
+ * @probe_mask: ignored
+ *
+ * Returns 0 on usuable ports.
+ */
static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
{
struct resource_map *m, mm;
@@ -488,7 +551,7 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
mm = *m;
- ok += do_mem_probe(mm.base, mm.num, s);
+ ok += do_mem_probe(s, mm.base, mm.num, readable, checksum);
}
if (ok > 0)
return 0;
@@ -498,31 +561,31 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
#endif /* CONFIG_PCMCIA_PROBE */
-/*
+/**
+ * pcmcia_nonstatic_validate_mem() - try to validate iomem for PCMCIA use
+ * @s: PCMCIA socket to validate
+ *
+ * This is tricky... when we set up CIS memory, we try to validate
+ * the memory window space allocations.
+ *
* Locking note: Must be called with skt_mutex held!
*/
static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s)
{
struct socket_data *s_data = s->resource_data;
unsigned int probe_mask = MEM_PROBE_LOW;
- int ret = 0;
+ int ret;
- if (!probe_mem)
+ if (!probe_mem || !(s->state & SOCKET_PRESENT))
return 0;
- mutex_lock(&rsrc_mutex);
-
if (s->features & SS_CAP_PAGE_REGS)
probe_mask = MEM_PROBE_HIGH;
- if (probe_mask & ~s_data->rsrc_mem_probe) {
- if (s->state & SOCKET_PRESENT)
- ret = validate_mem(s, probe_mask);
- if (!ret)
- s_data->rsrc_mem_probe |= probe_mask;
- }
+ ret = validate_mem(s, probe_mask);
- mutex_unlock(&rsrc_mutex);
+ if (s_data->mem_db_valid.next != &s_data->mem_db_valid)
+ return 0;
return ret;
}
@@ -602,7 +665,6 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star
struct socket_data *s_data = s->resource_data;
int ret = -ENOMEM;
- mutex_lock(&rsrc_mutex);
for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) {
unsigned long start = m->base;
unsigned long end = m->base + m->num - 1;
@@ -613,7 +675,6 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star
ret = adjust_resource(res, r_start, r_end - r_start + 1);
break;
}
- mutex_unlock(&rsrc_mutex);
return ret;
}
@@ -647,7 +708,6 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num,
data.offset = base & data.mask;
data.map = &s_data->io_db;
- mutex_lock(&rsrc_mutex);
#ifdef CONFIG_PCI
if (s->cb_dev) {
ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
@@ -656,7 +716,6 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num,
#endif
ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
1, pcmcia_align, &data);
- mutex_unlock(&rsrc_mutex);
if (ret != 0) {
kfree(res);
@@ -672,15 +731,15 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
struct socket_data *s_data = s->resource_data;
struct pcmcia_align_data data;
unsigned long min, max;
- int ret, i;
+ int ret, i, j;
low = low || !(s->features & SS_CAP_PAGE_REGS);
data.mask = align - 1;
data.offset = base & data.mask;
- data.map = &s_data->mem_db;
for (i = 0; i < 2; i++) {
+ data.map = &s_data->mem_db_valid;
if (low) {
max = 0x100000UL;
min = base < max ? base : 0;
@@ -689,17 +748,23 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
min = 0x100000UL + base;
}
- mutex_lock(&rsrc_mutex);
+ for (j = 0; j < 2; j++) {
#ifdef CONFIG_PCI
- if (s->cb_dev) {
- ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num,
- 1, min, 0,
- pcmcia_align, &data);
- } else
+ if (s->cb_dev) {
+ ret = pci_bus_alloc_resource(s->cb_dev->bus,
+ res, num, 1, min, 0,
+ pcmcia_align, &data);
+ } else
#endif
- ret = allocate_resource(&iomem_resource, res, num, min,
- max, 1, pcmcia_align, &data);
- mutex_unlock(&rsrc_mutex);
+ {
+ ret = allocate_resource(&iomem_resource,
+ res, num, min, max, 1,
+ pcmcia_align, &data);
+ }
+ if (ret == 0)
+ break;
+ data.map = &s_data->mem_db;
+ }
if (ret == 0 || low)
break;
low = 1;
@@ -722,25 +787,18 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned
if (end < start)
return -EINVAL;
- mutex_lock(&rsrc_mutex);
switch (action) {
case ADD_MANAGED_RESOURCE:
ret = add_interval(&data->mem_db, start, size);
+ if (!ret)
+ do_mem_probe(s, start, size, NULL, NULL);
break;
case REMOVE_MANAGED_RESOURCE:
ret = sub_interval(&data->mem_db, start, size);
- if (!ret) {
- struct pcmcia_socket *socket;
- down_read(&pcmcia_socket_list_rwsem);
- list_for_each_entry(socket, &pcmcia_socket_list, socket_list)
- release_cis_mem(socket);
- up_read(&pcmcia_socket_list_rwsem);
- }
break;
default:
ret = -EINVAL;
}
- mutex_unlock(&rsrc_mutex);
return ret;
}
@@ -758,7 +816,6 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long
if (end > IO_SPACE_LIMIT)
return -EINVAL;
- mutex_lock(&rsrc_mutex);
switch (action) {
case ADD_MANAGED_RESOURCE:
if (add_interval(&data->io_db, start, size) != 0) {
@@ -777,7 +834,6 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long
ret = -EINVAL;
break;
}
- mutex_unlock(&rsrc_mutex);
return ret;
}
@@ -860,6 +916,7 @@ static int nonstatic_init(struct pcmcia_socket *s)
return -ENOMEM;
data->mem_db.next = &data->mem_db;
+ data->mem_db_valid.next = &data->mem_db_valid;
data->io_db.next = &data->io_db;
s->resource_data = (void *) data;
@@ -874,7 +931,10 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s)
struct socket_data *data = s->resource_data;
struct resource_map *p, *q;
- mutex_lock(&rsrc_mutex);
+ for (p = data->mem_db_valid.next; p != &data->mem_db_valid; p = q) {
+ q = p->next;
+ kfree(p);
+ }
for (p = data->mem_db.next; p != &data->mem_db; p = q) {
q = p->next;
kfree(p);
@@ -883,7 +943,6 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s)
q = p->next;
kfree(p);
}
- mutex_unlock(&rsrc_mutex);
}
@@ -910,7 +969,7 @@ static ssize_t show_io_db(struct device *dev,
struct resource_map *p;
ssize_t ret = 0;
- mutex_lock(&rsrc_mutex);
+ mutex_lock(&s->ops_mutex);
data = s->resource_data;
for (p = data->io_db.next; p != &data->io_db; p = p->next) {
@@ -922,7 +981,7 @@ static ssize_t show_io_db(struct device *dev,
((unsigned long) p->base + p->num - 1));
}
- mutex_unlock(&rsrc_mutex);
+ mutex_unlock(&s->ops_mutex);
return ret;
}
@@ -950,9 +1009,11 @@ static ssize_t store_io_db(struct device *dev,
if (end_addr < start_addr)
return -EINVAL;
+ mutex_lock(&s->ops_mutex);
ret = adjust_io(s, add, start_addr, end_addr);
if (!ret)
s->resource_setup_new = 1;
+ mutex_unlock(&s->ops_mutex);
return ret ? ret : count;
}
@@ -966,9 +1027,19 @@ static ssize_t show_mem_db(struct device *dev,
struct resource_map *p;
ssize_t ret = 0;
- mutex_lock(&rsrc_mutex);
+ mutex_lock(&s->ops_mutex);
data = s->resource_data;
+ for (p = data->mem_db_valid.next; p != &data->mem_db_valid;
+ p = p->next) {
+ if (ret > (PAGE_SIZE - 10))
+ continue;
+ ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ "0x%08lx - 0x%08lx\n",
+ ((unsigned long) p->base),
+ ((unsigned long) p->base + p->num - 1));
+ }
+
for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
@@ -978,7 +1049,7 @@ static ssize_t show_mem_db(struct device *dev,
((unsigned long) p->base + p->num - 1));
}
- mutex_unlock(&rsrc_mutex);
+ mutex_unlock(&s->ops_mutex);
return ret;
}
@@ -1006,9 +1077,11 @@ static ssize_t store_mem_db(struct device *dev,
if (end_addr < start_addr)
return -EINVAL;
+ mutex_lock(&s->ops_mutex);
ret = adjust_memory(s, add, start_addr, end_addr);
if (!ret)
s->resource_setup_new = 1;
+ mutex_unlock(&s->ops_mutex);
return ret ? ret : count;
}
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index 7a456000332a..08278016e58d 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -88,15 +88,14 @@ static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- ssize_t ret;
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
- ret = pcmcia_insert_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
- return ret ? ret : count;
+ return count;
}
static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
@@ -113,18 +112,22 @@ static ssize_t pccard_store_card_pm_state(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- ssize_t ret = -EINVAL;
struct pcmcia_socket *s = to_socket(dev);
+ ssize_t ret = count;
if (!count)
return -EINVAL;
- if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
- ret = pcmcia_suspend_card(s);
- else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
- ret = pcmcia_resume_card(s);
+ if (!strncmp(buf, "off", 3))
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
+ else {
+ if (!strncmp(buf, "on", 2))
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
+ else
+ ret = -EINVAL;
+ }
- return ret ? -ENODEV : count;
+ return ret;
}
static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
@@ -132,15 +135,14 @@ static ssize_t pccard_store_eject(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- ssize_t ret;
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
- ret = pcmcia_eject_card(s);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
- return ret ? ret : count;
+ return count;
}
static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
@@ -167,7 +169,9 @@ static ssize_t pccard_store_irq_mask(struct device *dev,
ret = sscanf(buf, "0x%x\n", &mask);
if (ret == 1) {
+ mutex_lock(&s->ops_mutex);
s->irq_mask &= mask;
+ mutex_unlock(&s->ops_mutex);
ret = 0;
}
@@ -187,163 +191,21 @@ static ssize_t pccard_store_resource(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- unsigned long flags;
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
+ mutex_lock(&s->ops_mutex);
if (!s->resource_setup_done)
s->resource_setup_done = 1;
- spin_unlock_irqrestore(&s->lock, flags);
-
- mutex_lock(&s->skt_mutex);
- if ((s->callback) &&
- (s->state & SOCKET_PRESENT) &&
- !(s->state & SOCKET_CARDBUS)) {
- if (try_module_get(s->callback->owner)) {
- s->callback->requery(s, 0);
- module_put(s->callback->owner);
- }
- }
- mutex_unlock(&s->skt_mutex);
-
- return count;
-}
-static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
+ mutex_unlock(&s->ops_mutex);
-
-static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
-{
- tuple_t tuple;
- int status, i;
- loff_t pointer = 0;
- ssize_t ret = 0;
- u_char *tuplebuffer;
- u_char *tempbuffer;
-
- tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
- if (!tuplebuffer)
- return -ENOMEM;
-
- tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
- if (!tempbuffer) {
- ret = -ENOMEM;
- goto free_tuple;
- }
-
- memset(&tuple, 0, sizeof(tuple_t));
-
- tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
- tuple.DesiredTuple = RETURN_FIRST_TUPLE;
- tuple.TupleOffset = 0;
-
- status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
- while (!status) {
- tuple.TupleData = tuplebuffer;
- tuple.TupleDataMax = 255;
- memset(tuplebuffer, 0, sizeof(u_char) * 255);
-
- status = pccard_get_tuple_data(s, &tuple);
- if (status)
- break;
-
- if (off < (pointer + 2 + tuple.TupleDataLen)) {
- tempbuffer[0] = tuple.TupleCode & 0xff;
- tempbuffer[1] = tuple.TupleLink & 0xff;
- for (i = 0; i < tuple.TupleDataLen; i++)
- tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
-
- for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
- if (((i + pointer) >= off) &&
- (i + pointer) < (off + count)) {
- buf[ret] = tempbuffer[i];
- ret++;
- }
- }
- }
-
- pointer += 2 + tuple.TupleDataLen;
-
- if (pointer >= (off + count))
- break;
-
- if (tuple.TupleCode == CISTPL_END)
- break;
- status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
- }
-
- kfree(tempbuffer);
- free_tuple:
- kfree(tuplebuffer);
-
- return ret;
-}
-
-static ssize_t pccard_show_cis(struct kobject *kobj,
- struct bin_attribute *bin_attr,
- char *buf, loff_t off, size_t count)
-{
- unsigned int size = 0x200;
-
- if (off >= size)
- count = 0;
- else {
- struct pcmcia_socket *s;
- unsigned int chains;
-
- if (off + count > size)
- count = size - off;
-
- s = to_socket(container_of(kobj, struct device, kobj));
-
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
- if (pccard_validate_cis(s, &chains))
- return -EIO;
- if (!chains)
- return -ENODATA;
-
- count = pccard_extract_cis(s, buf, off, count);
- }
-
- return count;
-}
-
-static ssize_t pccard_store_cis(struct kobject *kobj,
- struct bin_attribute *bin_attr,
- char *buf, loff_t off, size_t count)
-{
- struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
- int error;
-
- if (off)
- return -EINVAL;
-
- if (count >= CISTPL_MAX_CIS_SIZE)
- return -EINVAL;
-
- if (!(s->state & SOCKET_PRESENT))
- return -ENODEV;
-
- error = pcmcia_replace_cis(s, buf, count);
- if (error)
- return -EIO;
-
- mutex_lock(&s->skt_mutex);
- if ((s->callback) && (s->state & SOCKET_PRESENT) &&
- !(s->state & SOCKET_CARDBUS)) {
- if (try_module_get(s->callback->owner)) {
- s->callback->requery(s, 1);
- module_put(s->callback->owner);
- }
- }
- mutex_unlock(&s->skt_mutex);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
return count;
}
-
+static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
static struct attribute *pccard_socket_attributes[] = {
&dev_attr_card_type.attr,
@@ -362,28 +224,12 @@ static const struct attribute_group socket_attrs = {
.attrs = pccard_socket_attributes,
};
-static struct bin_attribute pccard_cis_attr = {
- .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
- .size = 0x200,
- .read = pccard_show_cis,
- .write = pccard_store_cis,
-};
-
int pccard_sysfs_add_socket(struct device *dev)
{
- int ret = 0;
-
- ret = sysfs_create_group(&dev->kobj, &socket_attrs);
- if (!ret) {
- ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
- if (ret)
- sysfs_remove_group(&dev->kobj, &socket_attrs);
- }
- return ret;
+ return sysfs_create_group(&dev->kobj, &socket_attrs);
}
void pccard_sysfs_remove_socket(struct device *dev)
{
- sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
sysfs_remove_group(&dev->kobj, &socket_attrs);
}
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 1f2039d5e966..b85375f87622 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -37,6 +37,11 @@ static int pwr_irqs_off;
module_param(pwr_irqs_off, bool, 0644);
MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
+static char o2_speedup[] = "default";
+module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444);
+MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' "
+ "or 'default' (uses recommended behaviour for the detected bridge)");
+
#define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
/* Don't ask.. */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 21:30:30 +0000