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tifm_7xx1: switch from workqueue to kthread

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As there's only one work item (media_switcher) to handle and it's effectively
serialized with itself, I found it more convenient to use kthread instead of
workqueue. This also allows for a working implementation of suspend/resume,
which were totally broken in the past version.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Alex Dubov
2006-12-18 14:20:06 +11:00
committed by Pierre Ossman
parent 6412d92731
commit 7146f0d3bd
3 changed files with 99 additions and 75 deletions
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10
include/linux/tifm.h
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@@ -17,7 +17,7 @@
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/scatterlist.h>
#include <linux/kthread.h>
/* Host registers (relative to pci base address): */
enum {
@@ -110,13 +110,11 @@ struct tifm_adapter {
spinlock_t lock;
unsigned int irq_status;
unsigned int socket_change_set;
wait_queue_head_t change_set_notify;
unsigned int id;
unsigned int num_sockets;
struct tifm_dev **sockets;
char wq_name[KOBJ_NAME_LEN];
unsigned int inhibit_new_cards;
struct workqueue_struct *wq;
struct work_struct media_switcher;
struct task_struct *media_switcher;
struct class_device cdev;
struct device *dev;
@@ -126,7 +124,7 @@ struct tifm_adapter {
struct tifm_adapter *tifm_alloc_adapter(void);
void tifm_free_device(struct device *dev);
void tifm_free_adapter(struct tifm_adapter *fm);
int tifm_add_adapter(struct tifm_adapter *fm);
int tifm_add_adapter(struct tifm_adapter *fm, int (*mediathreadfn)(void *data));
void tifm_remove_adapter(struct tifm_adapter *fm);
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm);
int tifm_register_driver(struct tifm_driver *drv);