diff options
Diffstat (limited to 'sound/hda/hdac_stream.c')
| -rw-r--r-- | sound/hda/hdac_stream.c | 64 |
1 files changed, 36 insertions, 28 deletions
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 55d53b89ac21..a314b03b4a4c 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -96,12 +96,14 @@ void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start) 1 << azx_dev->index, 1 << azx_dev->index); /* set stripe control */ - if (azx_dev->substream) - stripe_ctl = snd_hdac_get_stream_stripe_ctl(bus, azx_dev->substream); - else - stripe_ctl = 0; - snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK, - stripe_ctl); + if (azx_dev->stripe) { + if (azx_dev->substream) + stripe_ctl = snd_hdac_get_stream_stripe_ctl(bus, azx_dev->substream); + else + stripe_ctl = 0; + snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK, + stripe_ctl); + } /* set DMA start and interrupt mask */ snd_hdac_stream_updateb(azx_dev, SD_CTL, 0, SD_CTL_DMA_START | SD_INT_MASK); @@ -118,7 +120,8 @@ void snd_hdac_stream_clear(struct hdac_stream *azx_dev) snd_hdac_stream_updateb(azx_dev, SD_CTL, SD_CTL_DMA_START | SD_INT_MASK, 0); snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */ - snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK, 0); + if (azx_dev->stripe) + snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK, 0); azx_dev->running = false; } EXPORT_SYMBOL_GPL(snd_hdac_stream_clear); @@ -229,11 +232,7 @@ int snd_hdac_stream_setup(struct hdac_stream *azx_dev) /* set the interrupt enable bits in the descriptor control register */ snd_hdac_stream_updatel(azx_dev, SD_CTL, 0, SD_INT_MASK); - if (azx_dev->direction == SNDRV_PCM_STREAM_PLAYBACK) - azx_dev->fifo_size = - snd_hdac_stream_readw(azx_dev, SD_FIFOSIZE) + 1; - else - azx_dev->fifo_size = 0; + azx_dev->fifo_size = snd_hdac_stream_readw(azx_dev, SD_FIFOSIZE) + 1; /* when LPIB delay correction gives a small negative value, * we ignore it; currently set the threshold statically to @@ -591,7 +590,9 @@ EXPORT_SYMBOL_GPL(snd_hdac_stream_timecounter_init); /** * snd_hdac_stream_sync_trigger - turn on/off stream sync register * @azx_dev: HD-audio core stream (master stream) + * @set: true = set, false = clear * @streams: bit flags of streams to sync + * @reg: the stream sync register address */ void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set, unsigned int streams, unsigned int reg) @@ -630,20 +631,27 @@ void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start, nwait = 0; i = 0; list_for_each_entry(s, &bus->stream_list, list) { - if (streams & (1 << i)) { - if (start) { - /* check FIFO gets ready */ - if (!(snd_hdac_stream_readb(s, SD_STS) & - SD_STS_FIFO_READY)) - nwait++; - } else { - /* check RUN bit is cleared */ - if (snd_hdac_stream_readb(s, SD_CTL) & - SD_CTL_DMA_START) - nwait++; + if (!(streams & (1 << i++))) + continue; + + if (start) { + /* check FIFO gets ready */ + if (!(snd_hdac_stream_readb(s, SD_STS) & + SD_STS_FIFO_READY)) + nwait++; + } else { + /* check RUN bit is cleared */ + if (snd_hdac_stream_readb(s, SD_CTL) & + SD_CTL_DMA_START) { + nwait++; + /* + * Perform stream reset if DMA RUN + * bit not cleared within given timeout + */ + if (timeout == 1) + snd_hdac_stream_reset(s); } } - i++; } if (!nwait) break; @@ -680,8 +688,8 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format, azx_dev->locked = true; spin_unlock_irq(&bus->reg_lock); - err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV_SG, - byte_size, bufp); + err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, bus->dev, + byte_size, bufp); if (err < 0) goto err_alloc; @@ -707,7 +715,7 @@ int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format, return azx_dev->stream_tag; error: - bus->io_ops->dma_free_pages(bus, bufp); + snd_dma_free_pages(bufp); err_alloc: spin_lock_irq(&bus->reg_lock); azx_dev->locked = false; @@ -754,7 +762,7 @@ void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev, azx_dev->period_bytes = 0; azx_dev->format_val = 0; - bus->io_ops->dma_free_pages(bus, dmab); + snd_dma_free_pages(dmab); dmab->area = NULL; spin_lock_irq(&bus->reg_lock); |
