diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/amiflop.c | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 4b1d4ac960f1..8df436ff7068 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -156,7 +156,7 @@ static volatile int fdc_busy = -1; static volatile int fdc_nested; static DECLARE_WAIT_QUEUE_HEAD(fdc_wait); -static DECLARE_WAIT_QUEUE_HEAD(motor_wait); +static DECLARE_COMPLETION(motor_on_completion); static volatile int selected = -1; /* currently selected drive */ @@ -184,8 +184,7 @@ static unsigned char mfmencode[16]={ static unsigned char mfmdecode[128]; /* floppy internal millisecond timer stuff */ -static volatile int ms_busy = -1; -static DECLARE_WAIT_QUEUE_HEAD(ms_wait); +static DECLARE_COMPLETION(ms_wait_completion); #define MS_TICKS ((amiga_eclock+50)/1000) /* @@ -211,8 +210,7 @@ static int fd_device[4] = { 0, 0, 0, 0 }; static irqreturn_t ms_isr(int irq, void *dummy) { - ms_busy = -1; - wake_up(&ms_wait); + complete(&ms_wait_completion); return IRQ_HANDLED; } @@ -220,19 +218,17 @@ static irqreturn_t ms_isr(int irq, void *dummy) A more generic routine would do a schedule a la timer.device */ static void ms_delay(int ms) { - unsigned long flags; int ticks; + static DEFINE_MUTEX(mutex); + if (ms > 0) { - local_irq_save(flags); - while (ms_busy == 0) - sleep_on(&ms_wait); - ms_busy = 0; - local_irq_restore(flags); + mutex_lock(&mutex); ticks = MS_TICKS*ms-1; ciaa.tblo=ticks%256; ciaa.tbhi=ticks/256; ciaa.crb=0x19; /*count eclock, force load, one-shoot, start */ - sleep_on(&ms_wait); + wait_for_completion(&ms_wait_completion); + mutex_unlock(&mutex); } } @@ -254,8 +250,7 @@ static void get_fdc(int drive) printk("get_fdc: drive %d fdc_busy %d fdc_nested %d\n",drive,fdc_busy,fdc_nested); #endif local_irq_save(flags); - while (!try_fdc(drive)) - sleep_on(&fdc_wait); + wait_event(fdc_wait, try_fdc(drive)); fdc_busy = drive; fdc_nested++; local_irq_restore(flags); @@ -330,7 +325,7 @@ static void fd_deselect (int drive) static void motor_on_callback(unsigned long nr) { if (!(ciaa.pra & DSKRDY) || --on_attempts == 0) { - wake_up (&motor_wait); + complete_all(&motor_on_completion); } else { motor_on_timer.expires = jiffies + HZ/10; add_timer(&motor_on_timer); @@ -347,11 +342,12 @@ static int fd_motor_on(int nr) unit[nr].motor = 1; fd_select(nr); + INIT_COMPLETION(motor_on_completion); motor_on_timer.data = nr; mod_timer(&motor_on_timer, jiffies + HZ/2); on_attempts = 10; - sleep_on (&motor_wait); + wait_for_completion(&motor_on_completion); fd_deselect(nr); } @@ -582,8 +578,7 @@ static void raw_read(int drive) { drive&=3; get_fdc(drive); - while (block_flag) - sleep_on(&wait_fd_block); + wait_event(wait_fd_block, !block_flag); fd_select(drive); /* setup adkcon bits correctly */ custom.adkcon = ADK_MSBSYNC; @@ -598,8 +593,7 @@ static void raw_read(int drive) block_flag = 1; - while (block_flag) - sleep_on (&wait_fd_block); + wait_event(wait_fd_block, !block_flag); custom.dsklen = 0; fd_deselect(drive); @@ -616,8 +610,7 @@ static int raw_write(int drive) rel_fdc(); return 0; } - while (block_flag) - sleep_on(&wait_fd_block); + wait_event(wait_fd_block, !block_flag); fd_select(drive); /* clear adkcon bits */ custom.adkcon = ADK_PRECOMP1|ADK_PRECOMP0|ADK_WORDSYNC|ADK_MSBSYNC; @@ -1294,8 +1287,7 @@ static int non_int_flush_track (unsigned long nr) writepending = 0; return 0; } - while (block_flag == 2) - sleep_on (&wait_fd_block); + wait_event(wait_fd_block, block_flag != 2); } else { local_irq_restore(flags); |