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tifm: move common device management tasks from tifm_7xx1 to tifm_core 

Some details of the device management (create, add, remove) are really
belong to the tifm_core, as they are not hardware specific.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Alex Dubov 2007-04-12 16:59:18 +10:00 committed by Pierre Ossman
parent 6113ed73e6
commit 2428a8fe22
3 changed files with 67 additions and 74 deletions
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98
drivers/misc/tifm_7xx1.c
View File

@ -136,7 +136,6 @@ static void tifm_7xx1_switch_media(struct work_struct *work)
media_switcher);
unsigned long flags;
unsigned char media_id;
char *card_name = "xx";
int cnt;
struct tifm_dev *sock;
unsigned int socket_change_set;
@ -153,69 +152,46 @@ static void tifm_7xx1_switch_media(struct work_struct *work)
return;
}
for (cnt = 0; cnt < fm->num_sockets; cnt++) {
if (!(socket_change_set & (1 << cnt)))
continue;
sock = fm->sockets[cnt];
if (sock) {
printk(KERN_INFO DRIVER_NAME
": demand removing card from socket %d\n",
cnt);
fm->sockets[cnt] = NULL;
spin_unlock_irqrestore(&fm->lock, flags);
device_unregister(&sock->dev);
spin_lock_irqsave(&fm->lock, flags);
writel(0x0e00,
tifm_7xx1_sock_addr(fm->addr, cnt)
+ SOCK_CONTROL);
}
for (cnt = 0; cnt < fm->num_sockets; cnt++) {
if (!(socket_change_set & (1 << cnt)))
continue;
sock = fm->sockets[cnt];
if (sock) {
printk(KERN_INFO
"%s : demand removing card from socket %u:%u\n",
fm->cdev.class_id, fm->id, cnt);
fm->sockets[cnt] = NULL;
spin_unlock_irqrestore(&fm->lock, flags);
media_id = tifm_7xx1_toggle_sock_power(
tifm_7xx1_sock_addr(fm->addr, cnt));
if (media_id) {
sock = tifm_alloc_device(fm);
if (sock) {
sock->addr = tifm_7xx1_sock_addr(fm->addr,
cnt);
sock->type = media_id;
sock->socket_id = cnt;
switch (media_id) {
case 1:
card_name = "xd";
break;
case 2:
card_name = "ms";
break;
case 3:
card_name = "sd";
break;
default:
tifm_free_device(&sock->dev);
spin_lock_irqsave(&fm->lock, flags);
continue;
}
snprintf(sock->dev.bus_id, BUS_ID_SIZE,
"tifm_%s%u:%u", card_name,
fm->id, cnt);
printk(KERN_INFO DRIVER_NAME
": %s card detected in socket %d\n",
card_name, cnt);
if (!device_register(&sock->dev)) {
spin_lock_irqsave(&fm->lock, flags);
if (!fm->sockets[cnt]) {
fm->sockets[cnt] = sock;
sock = NULL;
}
spin_unlock_irqrestore(&fm->lock, flags);
}
if (sock)
tifm_free_device(&sock->dev);
}
spin_lock_irqsave(&fm->lock, flags);
}
device_unregister(&sock->dev);
spin_lock_irqsave(&fm->lock, flags);
writel(0x0e00, tifm_7xx1_sock_addr(fm->addr, cnt)
+ SOCK_CONTROL);
}
spin_unlock_irqrestore(&fm->lock, flags);
media_id = tifm_7xx1_toggle_sock_power(
tifm_7xx1_sock_addr(fm->addr, cnt));
// tifm_alloc_device will check if media_id is valid
sock = tifm_alloc_device(fm, cnt, media_id);
if (sock) {
sock->addr = tifm_7xx1_sock_addr(fm->addr, cnt);
if (!device_register(&sock->dev)) {
spin_lock_irqsave(&fm->lock, flags);
if (!fm->sockets[cnt]) {
fm->sockets[cnt] = sock;
sock = NULL;
}
spin_unlock_irqrestore(&fm->lock, flags);
}
if (sock)
tifm_free_device(&sock->dev);
}
spin_lock_irqsave(&fm->lock, flags);
}
writel(TIFM_IRQ_FIFOMASK(socket_change_set)
| TIFM_IRQ_CARDMASK(socket_change_set),
fm->addr + FM_CLEAR_INTERRUPT_ENABLE);

39
drivers/misc/tifm_core.c
View File

@ -232,25 +232,40 @@ EXPORT_SYMBOL(tifm_free_adapter);
void tifm_free_device(struct device *dev)
{
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
kfree(fm_dev);
struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
kfree(sock);
}
EXPORT_SYMBOL(tifm_free_device);
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm)
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
unsigned char type)
{
struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
struct tifm_dev *sock = NULL;
if (dev) {
spin_lock_init(&dev->lock);
if (!tifm_media_type_name(type, 0))
return sock;
dev->dev.parent = fm->cdev.dev;
dev->dev.bus = &tifm_bus_type;
dev->dev.release = tifm_free_device;
dev->card_event = tifm_dummy_event;
dev->data_event = tifm_dummy_event;
sock = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
if (sock) {
spin_lock_init(&sock->lock);
sock->type = type;
sock->socket_id = id;
sock->card_event = tifm_dummy_event;
sock->data_event = tifm_dummy_event;
sock->dev.parent = fm->cdev.dev;
sock->dev.bus = &tifm_bus_type;
sock->dev.dma_mask = fm->cdev.dev->dma_mask;
sock->dev.release = tifm_free_device;
snprintf(sock->dev.bus_id, BUS_ID_SIZE,
"tifm_%s%u:%u", tifm_media_type_name(type, 2),
fm->id, id);
printk(KERN_INFO DRIVER_NAME
": %s card detected in socket %u:%u\n",
tifm_media_type_name(type, 0), fm->id, id);
}
return dev;
return sock;
}
EXPORT_SYMBOL(tifm_alloc_device);

4
include/linux/tifm.h
View File

@ -131,7 +131,9 @@ void tifm_remove_adapter(struct tifm_adapter *fm);
void tifm_free_adapter(struct tifm_adapter *fm);
void tifm_free_device(struct device *dev);
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm);
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id,
unsigned char type);
int tifm_register_driver(struct tifm_driver *drv);
void tifm_unregister_driver(struct tifm_driver *drv);
void tifm_eject(struct tifm_dev *sock);