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path: root/drivers/char/pcmcia/synclink_cs.c
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Diffstat (limited to 'drivers/char/pcmcia/synclink_cs.c')
-rw-r--r--drivers/char/pcmcia/synclink_cs.c164
1 files changed, 53 insertions, 111 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 2c326ea53421..8a8ca32822ba 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -486,13 +486,7 @@ static void mgslpc_wait_until_sent(struct tty_struct *tty, int timeout);
static void mgslpc_config(dev_link_t *link);
static void mgslpc_release(u_long arg);
-static int mgslpc_event(event_t event, int priority,
- event_callback_args_t *args);
-static dev_link_t *mgslpc_attach(void);
-static void mgslpc_detach(dev_link_t *);
-
-static dev_info_t dev_info = "synclink_cs";
-static dev_link_t *dev_list = NULL;
+static void mgslpc_detach(struct pcmcia_device *p_dev);
/*
* 1st function defined in .text section. Calling this function in
@@ -539,12 +533,10 @@ static void ldisc_receive_buf(struct tty_struct *tty,
}
}
-static dev_link_t *mgslpc_attach(void)
+static int mgslpc_attach(struct pcmcia_device *p_dev)
{
MGSLPC_INFO *info;
dev_link_t *link;
- client_reg_t client_reg;
- int ret;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_attach\n");
@@ -552,7 +544,7 @@ static dev_link_t *mgslpc_attach(void)
info = (MGSLPC_INFO *)kmalloc(sizeof(MGSLPC_INFO), GFP_KERNEL);
if (!info) {
printk("Error can't allocate device instance data\n");
- return NULL;
+ return -ENOMEM;
}
memset(info, 0, sizeof(MGSLPC_INFO));
@@ -587,24 +579,15 @@ static dev_link_t *mgslpc_attach(void)
link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
- /* Register with Card Services */
- link->next = dev_list;
- dev_list = link;
-
- client_reg.dev_info = &dev_info;
- client_reg.Version = 0x0210;
- client_reg.event_callback_args.client_data = link;
+ link->handle = p_dev;
+ p_dev->instance = link;
- ret = pcmcia_register_client(&link->handle, &client_reg);
- if (ret != CS_SUCCESS) {
- cs_error(link->handle, RegisterClient, ret);
- mgslpc_detach(link);
- return NULL;
- }
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ mgslpc_config(link);
mgslpc_add_device(info);
- return link;
+ return 0;
}
/* Card has been inserted.
@@ -736,85 +719,50 @@ static void mgslpc_release(u_long arg)
pcmcia_release_io(link->handle, &link->io);
if (link->irq.AssignedIRQ)
pcmcia_release_irq(link->handle, &link->irq);
- if (link->state & DEV_STALE_LINK)
- mgslpc_detach(link);
}
-static void mgslpc_detach(dev_link_t *link)
+static void mgslpc_detach(struct pcmcia_device *p_dev)
{
- dev_link_t **linkp;
+ dev_link_t *link = dev_to_instance(p_dev);
if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_detach(0x%p)\n", link);
-
- /* find device */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
if (link->state & DEV_CONFIG) {
- /* device is configured/active, mark it so when
- * release() is called a proper detach() occurs.
- */
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk(KERN_DEBUG "synclinkpc: detach postponed, '%s' "
- "still locked\n", link->dev->dev_name);
- link->state |= DEV_STALE_LINK;
- return;
+ ((MGSLPC_INFO *)link->priv)->stop = 1;
+ mgslpc_release((u_long)link);
}
- /* Break the link with Card Services */
- if (link->handle)
- pcmcia_deregister_client(link->handle);
-
- /* Unlink device structure, and free it */
- *linkp = link->next;
mgslpc_remove_device((MGSLPC_INFO *)link->priv);
}
-static int mgslpc_event(event_t event, int priority,
- event_callback_args_t *args)
+static int mgslpc_suspend(struct pcmcia_device *dev)
{
- dev_link_t *link = args->client_data;
- MGSLPC_INFO *info = link->priv;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("mgslpc_event(0x%06x)\n", event);
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG) {
- ((MGSLPC_INFO *)link->priv)->stop = 1;
- mgslpc_release((u_long)link);
- }
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- mgslpc_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- /* Mark the device as stopped, to block IO until later */
- info->stop = 1;
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (link->state & DEV_CONFIG)
- pcmcia_request_configuration(link->handle, &link->conf);
- info->stop = 0;
- break;
- }
- return 0;
+ dev_link_t *link = dev_to_instance(dev);
+ MGSLPC_INFO *info = link->priv;
+
+ link->state |= DEV_SUSPEND;
+ info->stop = 1;
+ if (link->state & DEV_CONFIG)
+ pcmcia_release_configuration(link->handle);
+
+ return 0;
+}
+
+static int mgslpc_resume(struct pcmcia_device *dev)
+{
+ dev_link_t *link = dev_to_instance(dev);
+ MGSLPC_INFO *info = link->priv;
+
+ link->state &= ~DEV_SUSPEND;
+ if (link->state & DEV_CONFIG)
+ pcmcia_request_configuration(link->handle, &link->conf);
+ info->stop = 0;
+
+ return 0;
}
+
static inline int mgslpc_paranoia_check(MGSLPC_INFO *info,
char *name, const char *routine)
{
@@ -1059,8 +1007,9 @@ static void rx_ready_hdlc(MGSLPC_INFO *info, int eom)
static void rx_ready_async(MGSLPC_INFO *info, int tcd)
{
- unsigned char data, status;
+ unsigned char data, status, flag;
int fifo_count;
+ int work = 0;
struct tty_struct *tty = info->tty;
struct mgsl_icount *icount = &info->icount;
@@ -1075,20 +1024,16 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
fifo_count = 32;
} else
fifo_count = 32;
-
+
+ tty_buffer_request_room(tty, fifo_count);
/* Flush received async data to receive data buffer. */
while (fifo_count) {
data = read_reg(info, CHA + RXFIFO);
status = read_reg(info, CHA + RXFIFO);
fifo_count -= 2;
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- break;
-
- *tty->flip.char_buf_ptr = data;
icount->rx++;
-
- *tty->flip.flag_buf_ptr = 0;
+ flag = TTY_NORMAL;
// if no frameing/crc error then save data
// BIT7:parity error
@@ -1107,26 +1052,23 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
status &= info->read_status_mask;
if (status & BIT7)
- *tty->flip.flag_buf_ptr = TTY_PARITY;
+ flag = TTY_PARITY;
else if (status & BIT6)
- *tty->flip.flag_buf_ptr = TTY_FRAME;
+ flag = TTY_FRAME;
}
-
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
+ work += tty_insert_flip_char(tty, data, flag);
}
issue_command(info, CHA, CMD_RXFIFO);
if (debug_level >= DEBUG_LEVEL_ISR) {
- printk("%s(%d):rx_ready_async count=%d\n",
- __FILE__,__LINE__,tty->flip.count);
+ printk("%s(%d):rx_ready_async",
+ __FILE__,__LINE__);
printk("%s(%d):rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
__FILE__,__LINE__,icount->rx,icount->brk,
icount->parity,icount->frame,icount->overrun);
}
- if (tty->flip.count)
+ if (work)
tty_flip_buffer_push(tty);
}
@@ -3091,10 +3033,11 @@ static struct pcmcia_driver mgslpc_driver = {
.drv = {
.name = "synclink_cs",
},
- .attach = mgslpc_attach,
- .event = mgslpc_event,
- .detach = mgslpc_detach,
+ .probe = mgslpc_attach,
+ .remove = mgslpc_detach,
.id_table = mgslpc_ids,
+ .suspend = mgslpc_suspend,
+ .resume = mgslpc_resume,
};
static struct tty_operations mgslpc_ops = {
@@ -3138,7 +3081,6 @@ static void synclink_cs_cleanup(void)
}
pcmcia_unregister_driver(&mgslpc_driver);
- BUG_ON(dev_list != NULL);
}
static int __init synclink_cs_init(void)
@@ -4057,7 +3999,7 @@ BOOLEAN register_test(MGSLPC_INFO *info)
{
static unsigned char patterns[] =
{ 0x00, 0xff, 0xaa, 0x55, 0x69, 0x96, 0x0f };
- static unsigned int count = sizeof(patterns) / sizeof(patterns[0]);
+ static unsigned int count = ARRAY_SIZE(patterns);
unsigned int i;
BOOLEAN rc = TRUE;
unsigned long flags;
@@ -4068,7 +4010,7 @@ BOOLEAN register_test(MGSLPC_INFO *info)
for (i = 0; i < count; i++) {
write_reg(info, XAD1, patterns[i]);
write_reg(info, XAD2, patterns[(i + 1) % count]);
- if ((read_reg(info, XAD1) != patterns[i]) ||
+ if ((read_reg(info, XAD1) != patterns[i]) ||
(read_reg(info, XAD2) != patterns[(i + 1) % count])) {
rc = FALSE;
break;