#include <linux/dma-mapping.h>
#include <linux/sound.h>
#include <linux/soundcard.h>
-#include <linux/mutex.h>
-
#include <asm/io.h>
#include <asm/sgi/hpc3.h>
wait_queue_head_t dma_wait;
spinlock_t lock;
- struct mutex sem;
+ struct semaphore sem;
int usecount; /* recording and playback are
* independent */
if (!count)
return 0;
- if (mutex_lock_interruptible(&adc->sem))
+ if (down_interruptible(&adc->sem))
return -EINTR;
if (file->f_flags & O_NONBLOCK) {
err = hal2_get_buffer(hal2, buffer, count);
}
} while (count > 0 && err >= 0);
}
- mutex_unlock(&adc->sem);
+ up(&adc->sem);
return err;
}
if (!count)
return 0;
- if (mutex_lock_interruptible(&dac->sem))
+ if (down_interruptible(&dac->sem))
return -EINTR;
if (file->f_flags & O_NONBLOCK) {
err = hal2_add_buffer(hal2, buf, count);
}
} while (count > 0 && err >= 0);
}
- mutex_unlock(&dac->sem);
+ up(&dac->sem);
return err;
}
if (file->f_mode & FMODE_READ) {
struct hal2_codec *adc = &hal2->adc;
- mutex_lock(&adc->sem);
+ down(&adc->sem);
hal2_stop_adc(hal2);
hal2_free_adc_dmabuf(adc);
adc->usecount--;
- mutex_unlock(&adc->sem);
+ up(&adc->sem);
}
if (file->f_mode & FMODE_WRITE) {
struct hal2_codec *dac = &hal2->dac;
- mutex_lock(&dac->sem);
+ down(&dac->sem);
hal2_sync_dac(hal2);
hal2_free_dac_dmabuf(dac);
dac->usecount--;
- mutex_unlock(&dac->sem);
+ up(&dac->sem);
}
return 0;
codec->pbus.pbusnr = index;
codec->pbus.pbus = &hpc3->pbdma[index];
init_waitqueue_head(&codec->dma_wait);
- mutex_init(&codec->sem);
+ init_MUTEX(&codec->sem);
spin_lock_init(&codec->lock);
}