#define BE_CONSERVATIVE
#define SAMPLE_ROUNDUP 0
+#include <linux/mm.h>
#include "sound_config.h"
#define DMAP_FREE_ON_CLOSE 0
DMAbuf_launch_output(dev, dmap);
adev->dmap_out->flags |= DMA_SYNCING;
adev->dmap_out->underrun_count = 0;
- while (!signal_pending(current) && n++ <= adev->dmap_out->nbufs &&
+ while (!signal_pending(current) && n++ < adev->dmap_out->nbufs &&
adev->dmap_out->qlen && adev->dmap_out->underrun_count == 0) {
long t = dmabuf_timeout(dmap);
spin_unlock_irqrestore(&dmap->lock,flags);
#ifdef BE_CONSERVATIVE
active_offs = dmap->byte_counter + dmap->qhead * dmap->fragment_size;
#else
- active_offs = DMAbuf_get_buffer_pointer(dev, dmap, DMODE_OUTPUT);
+ active_offs = max(DMAbuf_get_buffer_pointer(dev, dmap, DMODE_OUTPUT), 0);
/* Check for pointer wrapping situation */
- if (active_offs < 0 || active_offs >= dmap->bytes_in_use)
+ if (active_offs >= dmap->bytes_in_use)
active_offs = 0;
active_offs += dmap->byte_counter;
#endif
sound_start_dma(dmap, physaddr, count, dma_mode);
return count;
}
+EXPORT_SYMBOL(DMAbuf_start_dma);
static int local_start_dma(struct audio_operations *adev, unsigned long physaddr, int count, int dma_mode)
{
do_outputintr(dev, notify_only);
spin_unlock_irqrestore(&dmap->lock,flags);
}
+EXPORT_SYMBOL(DMAbuf_outputintr);
+
/* called with dmap->lock held in irq context */
static void do_inputintr(int dev)
{
do_inputintr(dev);
spin_unlock_irqrestore(&dmap->lock,flags);
}
+EXPORT_SYMBOL(DMAbuf_inputintr);
void DMAbuf_init(int dev, int dma1, int dma2)
{
* NOTE! This routine could be called several times.
*/
- /* drag in audio_syms.o */
- {
- extern char audio_syms_symbol;
- audio_syms_symbol = 0;
- }
-
if (adev && adev->dmap_out == NULL) {
if (adev->d == NULL)
panic("OSS: audio_devs[%d]->d == NULL\n", dev);