[PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index c996ae1..3e6d6e0 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -46,7 +46,7 @@
/* #define ATR_CSUM */
#ifdef PCMCIA_DEBUG
-#define reader_to_dev(x) (&handle_to_dev(x->link.handle))
+#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0600);
#define DEBUGP(n, rdr, x, args...) do { \
@@ -106,7 +106,7 @@
#define REG_STOPBITS(x) (x + 7)
struct cm4000_dev {
- dev_link_t link; /* pcmcia link */
+ struct pcmcia_device *p_dev;
dev_node_t node; /* OS node (major,minor) */
unsigned char atr[MAX_ATR];
@@ -454,7 +454,7 @@
static void set_cardparameter(struct cm4000_dev *dev)
{
int i;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
u_int8_t stopbits = 0x02; /* ISO default */
DEBUGP(3, dev, "-> set_cardparameter\n");
@@ -487,7 +487,7 @@
unsigned short num_bytes_read;
unsigned char pts_reply[4];
ssize_t rc;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
rc = 0;
@@ -699,7 +699,7 @@
static void monitor_card(unsigned long p)
{
struct cm4000_dev *dev = (struct cm4000_dev *) p;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
unsigned short s;
struct ptsreq ptsreq;
int i, atrc;
@@ -962,7 +962,7 @@
loff_t *ppos)
{
struct cm4000_dev *dev = filp->private_data;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
ssize_t rc;
int i, j, k;
@@ -971,7 +971,7 @@
if (count == 0) /* according to manpage */
return 0;
- if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
+ if ((dev->p_dev->state & DEV_PRESENT) == 0 || /* socket removed */
test_bit(IS_CMM_ABSENT, &dev->flags))
return -ENODEV;
@@ -1083,7 +1083,7 @@
size_t count, loff_t *ppos)
{
struct cm4000_dev *dev = (struct cm4000_dev *) filp->private_data;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
unsigned short s;
unsigned char tmp;
unsigned char infolen;
@@ -1108,7 +1108,7 @@
sendT0 = dev->proto ? 0 : nr > 5 ? 0x08 : 0;
- if ((dev->link.state & DEV_PRESENT) == 0 || /* socket removed */
+ if ((dev->p_dev->state & DEV_PRESENT) == 0 || /* socket removed */
test_bit(IS_CMM_ABSENT, &dev->flags))
return -ENODEV;
@@ -1440,7 +1440,7 @@
unsigned long arg)
{
struct cm4000_dev *dev = filp->private_data;
- ioaddr_t iobase = dev->link.io.BasePort1;
+ ioaddr_t iobase = dev->p_dev->io.BasePort1;
dev_link_t *link;
int size;
int rc;
@@ -1844,7 +1844,7 @@
dev->node.major = major;
dev->node.minor = devno;
dev->node.next = NULL;
- link->dev = &dev->node;
+ link->dev_node = &dev->node;
link->state &= ~DEV_CONFIG_PENDING;
return;
@@ -1889,8 +1889,8 @@
static int cm4000_attach(struct pcmcia_device *p_dev)
{
struct cm4000_dev *dev;
- dev_link_t *link;
int i;
+ dev_link_t *link = dev_to_instance(p_dev);
for (i = 0; i < CM4000_MAX_DEV; i++)
if (dev_table[i] == NULL)
@@ -1906,7 +1906,7 @@
if (dev == NULL)
return -ENOMEM;
- link = &dev->link;
+ dev->p_dev = p_dev;
link->priv = dev;
link->conf.IntType = INT_MEMORY_AND_IO;
dev_table[i] = link;
@@ -1916,9 +1916,6 @@
init_waitqueue_head(&dev->atrq);
init_waitqueue_head(&dev->readq);
- link->handle = p_dev;
- p_dev->instance = link;
-
link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
cm4000_config(link, i);
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 94ecd03..97e32e7 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -41,7 +41,7 @@
#ifdef PCMCIA_DEBUG
-#define reader_to_dev(x) (&handle_to_dev(x->link.handle))
+#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0600);
#define DEBUGP(n, rdr, x, args...) do { \
@@ -74,7 +74,7 @@
#define BS_WRITABLE 0x02
struct reader_dev {
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
wait_queue_head_t devq;
wait_queue_head_t poll_wait;
@@ -116,7 +116,7 @@
static void cm4040_do_poll(unsigned long dummy)
{
struct reader_dev *dev = (struct reader_dev *) dummy;
- unsigned int obs = xinb(dev->link.io.BasePort1
+ unsigned int obs = xinb(dev->p_dev->io.BasePort1
+ REG_OFFSET_BUFFER_STATUS);
if ((obs & BSR_BULK_IN_FULL)) {
@@ -147,7 +147,7 @@
static int wait_for_bulk_out_ready(struct reader_dev *dev)
{
int i, rc;
- int iobase = dev->link.io.BasePort1;
+ int iobase = dev->p_dev->io.BasePort1;
for (i = 0; i < POLL_LOOP_COUNT; i++) {
if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS)
@@ -177,7 +177,7 @@
/* Write to Sync Control Register */
static int write_sync_reg(unsigned char val, struct reader_dev *dev)
{
- int iobase = dev->link.io.BasePort1;
+ int iobase = dev->p_dev->io.BasePort1;
int rc;
rc = wait_for_bulk_out_ready(dev);
@@ -195,7 +195,7 @@
static int wait_for_bulk_in_ready(struct reader_dev *dev)
{
int i, rc;
- int iobase = dev->link.io.BasePort1;
+ int iobase = dev->p_dev->io.BasePort1;
for (i = 0; i < POLL_LOOP_COUNT; i++) {
if ((xinb(iobase + REG_OFFSET_BUFFER_STATUS)
@@ -225,7 +225,7 @@
size_t count, loff_t *ppos)
{
struct reader_dev *dev = filp->private_data;
- int iobase = dev->link.io.BasePort1;
+ int iobase = dev->p_dev->io.BasePort1;
size_t bytes_to_read;
unsigned long i;
size_t min_bytes_to_read;
@@ -246,7 +246,7 @@
return -EAGAIN;
}
- if ((dev->link.state & DEV_PRESENT)==0)
+ if ((dev->p_dev->state & DEV_PRESENT)==0)
return -ENODEV;
for (i = 0; i < 5; i++) {
@@ -328,7 +328,7 @@
size_t count, loff_t *ppos)
{
struct reader_dev *dev = filp->private_data;
- int iobase = dev->link.io.BasePort1;
+ int iobase = dev->p_dev->io.BasePort1;
ssize_t rc;
int i;
unsigned int bytes_to_write;
@@ -351,7 +351,7 @@
return -EAGAIN;
}
- if ((dev->link.state & DEV_PRESENT) == 0)
+ if ((dev->p_dev->state & DEV_PRESENT) == 0)
return -ENODEV;
bytes_to_write = count;
@@ -606,7 +606,7 @@
dev->node.major = major;
dev->node.minor = devno;
dev->node.next = NULL;
- link->dev = &dev->node;
+ link->dev_node = &dev->node;
link->state &= ~DEV_CONFIG_PENDING;
DEBUGP(2, dev, "device " DEVICE_NAME "%d at 0x%.4x-0x%.4x\n", devno,
@@ -631,8 +631,8 @@
static int reader_attach(struct pcmcia_device *p_dev)
{
struct reader_dev *dev;
- dev_link_t *link;
int i;
+ dev_link_t *link = dev_to_instance(p_dev);
for (i = 0; i < CM_MAX_DEV; i++) {
if (dev_table[i] == NULL)
@@ -649,8 +649,8 @@
dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT;
dev->buffer_status = 0;
- link = &dev->link;
link->priv = dev;
+ dev->p_dev = p_dev;
link->conf.IntType = INT_MEMORY_AND_IO;
dev_table[i] = link;
@@ -662,9 +662,6 @@
init_timer(&dev->poll_timer);
dev->poll_timer.function = &cm4040_do_poll;
- link->handle = p_dev;
- p_dev->instance = link;
-
link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
reader_config(link, i);
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index a6cbd32..7b1e055 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -228,7 +228,7 @@
struct _input_signal_events input_signal_events;
/* PCMCIA support */
- dev_link_t link;
+ struct pcmcia_device *p_dev;
dev_node_t node;
int stop;
@@ -536,11 +536,11 @@
static int mgslpc_attach(struct pcmcia_device *p_dev)
{
MGSLPC_INFO *info;
- dev_link_t *link;
-
+ dev_link_t *link = dev_to_instance(p_dev);
+
if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_attach\n");
-
+
info = (MGSLPC_INFO *)kmalloc(sizeof(MGSLPC_INFO), GFP_KERNEL);
if (!info) {
printk("Error can't allocate device instance data\n");
@@ -565,22 +565,19 @@
info->imrb_value = 0xffff;
info->pim_value = 0xff;
- link = &info->link;
+ info->p_dev = p_dev;
link->priv = info;
-
+
/* Initialize the dev_link_t structure */
/* Interrupt setup */
link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->irq.IRQInfo1 = IRQ_LEVEL_ID;
link->irq.Handler = NULL;
-
+
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
- link->handle = p_dev;
- p_dev->instance = link;
-
link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
mgslpc_config(link);
@@ -673,7 +670,7 @@
/* add to linked list of devices */
sprintf(info->node.dev_name, "mgslpc0");
info->node.major = info->node.minor = 0;
- link->dev = &info->node;
+ link->dev_node = &info->node;
printk(KERN_INFO "%s: index 0x%02x:",
info->node.dev_name, link->conf.ConfigIndex);
@@ -1259,7 +1256,7 @@
if (!info)
return IRQ_NONE;
- if (!(info->link.state & DEV_CONFIG))
+ if (!(info->p_dev->state & DEV_CONFIG))
return IRQ_HANDLED;
spin_lock(&info->lock);