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Sonypi: make sure that input_work is not running when unloading 

the module; submit/retrieve key release data into/from
        input_fifo in one shot.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
hifive-unleashed-5.1
Dmitry Torokhov 2005-06-30 00:50:10 -05:00
parent 16a334c0de
commit fb2ce3c005
1 changed files with 63 additions and 59 deletions
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122
drivers/char/sonypi.c
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@ -439,6 +439,11 @@ static struct {
{ 0, 0 },
};
struct sonypi_keypress {
struct input_dev *dev;
int key;
};
static struct sonypi_device {
struct pci_dev *dev;
struct platform_device *pdev;
@ -710,22 +715,61 @@ static void sonypi_setbluetoothpower(u8 state)
static void input_keyrelease(void *data)
{
struct input_dev *input_dev;
int key;
while (1) {
if (kfifo_get(sonypi_device.input_fifo,
(unsigned char *)&input_dev,
sizeof(input_dev)) != sizeof(input_dev))
return;
if (kfifo_get(sonypi_device.input_fifo,
(unsigned char *)&key,
sizeof(key)) != sizeof(key))
return;
struct sonypi_keypress kp;
while (kfifo_get(sonypi_device.input_fifo, (unsigned char *)&kp,
sizeof(kp)) == sizeof(kp)) {
msleep(10);
input_report_key(input_dev, key, 0);
input_sync(input_dev);
input_report_key(kp.dev, kp.key, 0);
input_sync(kp.dev);
}
}
static void sonypi_report_input_event(u8 event)
{
struct input_dev *jog_dev = &sonypi_device.input_jog_dev;
struct input_dev *key_dev = &sonypi_device.input_key_dev;
struct sonypi_keypress kp = { NULL };
int i;
switch (event) {
case SONYPI_EVENT_JOGDIAL_UP:
case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
input_report_rel(jog_dev, REL_WHEEL, 1);
input_sync(jog_dev);
break;
case SONYPI_EVENT_JOGDIAL_DOWN:
case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
input_report_rel(jog_dev, REL_WHEEL, -1);
input_sync(jog_dev);
break;
case SONYPI_EVENT_JOGDIAL_PRESSED:
kp.key = BTN_MIDDLE;
kp.dev = jog_dev;
break;
case SONYPI_EVENT_FNKEY_RELEASED:
/* Nothing, not all VAIOs generate this event */
break;
default:
for (i = 0; sonypi_inputkeys[i].sonypiev; i++)
if (event == sonypi_inputkeys[i].sonypiev) {
kp.dev = key_dev;
kp.key = sonypi_inputkeys[i].inputev;
break;
}
break;
}
if (kp.dev) {
input_report_key(kp.dev, kp.key, 1);
input_sync(kp.dev);
kfifo_put(sonypi_device.input_fifo,
(unsigned char *)&kp, sizeof(kp));
schedule_work(&sonypi_device.input_work);
}
}
@ -768,51 +812,8 @@ found:
printk(KERN_INFO
"sonypi: event port1=0x%02x,port2=0x%02x\n", v1, v2);
if (useinput) {
struct input_dev *input_jog_dev = &sonypi_device.input_jog_dev;
struct input_dev *input_key_dev = &sonypi_device.input_key_dev;
switch (event) {
case SONYPI_EVENT_JOGDIAL_UP:
case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
input_report_rel(input_jog_dev, REL_WHEEL, 1);
break;
case SONYPI_EVENT_JOGDIAL_DOWN:
case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
input_report_rel(input_jog_dev, REL_WHEEL, -1);
break;
case SONYPI_EVENT_JOGDIAL_PRESSED: {
int key = BTN_MIDDLE;
input_report_key(input_jog_dev, key, 1);
kfifo_put(sonypi_device.input_fifo,
(unsigned char *)&input_jog_dev,
sizeof(input_jog_dev));
kfifo_put(sonypi_device.input_fifo,
(unsigned char *)&key, sizeof(key));
break;
}
case SONYPI_EVENT_FNKEY_RELEASED:
/* Nothing, not all VAIOs generate this event */
break;
}
input_sync(input_jog_dev);
for (i = 0; sonypi_inputkeys[i].sonypiev; i++) {
int key;
if (event != sonypi_inputkeys[i].sonypiev)
continue;
key = sonypi_inputkeys[i].inputev;
input_report_key(input_key_dev, key, 1);
kfifo_put(sonypi_device.input_fifo,
(unsigned char *)&input_key_dev,
sizeof(input_key_dev));
kfifo_put(sonypi_device.input_fifo,
(unsigned char *)&key, sizeof(key));
}
input_sync(input_key_dev);
schedule_work(&sonypi_device.input_work);
}
if (useinput)
sonypi_report_input_event(event);
kfifo_put(sonypi_device.fifo, (unsigned char *)&event, sizeof(event));
kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
@ -1337,6 +1338,9 @@ static void __devexit sonypi_remove(void)
{
sonypi_disable();
synchronize_sched(); /* Allow sonypi interrupt to complete. */
flush_scheduled_work();
platform_device_unregister(sonypi_device.pdev);
if (useinput) {