#include <linux/pm_qos.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
}
EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irqrestore);
+/* Run PCM ioctl ops */
+static int snd_pcm_ops_ioctl(struct snd_pcm_substream *substream,
+ unsigned cmd, void *arg)
+{
+ if (substream->ops->ioctl)
+ return substream->ops->ioctl(substream, cmd, arg);
+ else
+ return snd_pcm_lib_ioctl(substream, cmd, arg);
+}
+
int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info)
{
struct snd_pcm *pcm = substream->pcm;
return false;
if (substream->ops->mmap ||
- substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_DEV)
+ (substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_DEV &&
+ substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_DEV_UC))
return true;
return dma_can_mmap(substream->dma_buffer.dev.dev);
m = hw_param_mask_c(params, SNDRV_PCM_HW_PARAM_FORMAT);
i = hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
if (snd_mask_single(m) && snd_interval_single(i)) {
- err = substream->ops->ioctl(substream,
- SNDRV_PCM_IOCTL1_FIFO_SIZE, params);
+ err = snd_pcm_ops_ioctl(substream,
+ SNDRV_PCM_IOCTL1_FIFO_SIZE,
+ params);
if (err < 0)
return err;
}
#endif
}
+static void snd_pcm_sync_stop(struct snd_pcm_substream *substream)
+{
+ if (substream->runtime->stop_operating) {
+ substream->runtime->stop_operating = false;
+ if (substream->ops->sync_stop)
+ substream->ops->sync_stop(substream);
+ }
+}
+
/**
* snd_pcm_hw_param_choose - choose a configuration defined by @params
* @pcm: PCM instance
if (atomic_read(&substream->mmap_count))
return -EBADFD;
+ snd_pcm_sync_stop(substream);
+
params->rmask = ~0U;
err = snd_pcm_hw_refine(substream, params);
if (err < 0)
if (err < 0)
goto _error;
+ if (substream->managed_buffer_alloc) {
+ err = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(params));
+ if (err < 0)
+ goto _error;
+ runtime->buffer_changed = err > 0;
+ }
+
if (substream->ops->hw_params != NULL) {
err = substream->ops->hw_params(substream, params);
if (err < 0)
snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
if (substream->ops->hw_free != NULL)
substream->ops->hw_free(substream);
+ if (substream->managed_buffer_alloc)
+ snd_pcm_lib_free_pages(substream);
return err;
}
snd_pcm_stream_unlock_irq(substream);
if (atomic_read(&substream->mmap_count))
return -EBADFD;
+ snd_pcm_sync_stop(substream);
if (substream->ops->hw_free)
result = substream->ops->hw_free(substream);
+ if (substream->managed_buffer_alloc)
+ snd_pcm_lib_free_pages(substream);
snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
pm_qos_remove_request(&substream->latency_pm_qos_req);
return result;
return -EINVAL;
memset(info, 0, sizeof(*info));
info->channel = channel;
- return substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_CHANNEL_INFO, info);
+ return snd_pcm_ops_ioctl(substream, SNDRV_PCM_IOCTL1_CHANNEL_INFO, info);
}
static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
runtime->status->state = state;
snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MSTOP);
}
+ runtime->stop_operating = true;
wake_up(&runtime->sleep);
wake_up(&runtime->tsleep);
}
snd_pcm_trigger_tstamp(substream);
runtime->status->state = runtime->status->suspended_state;
snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MRESUME);
+ snd_pcm_sync_stop(substream);
}
static const struct action_ops snd_pcm_action_resume = {
static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- int err = substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
+ int err = snd_pcm_ops_ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
if (err < 0)
return err;
runtime->hw_ptr_base = 0;
static int snd_pcm_do_prepare(struct snd_pcm_substream *substream, int state)
{
int err;
+ snd_pcm_sync_stop(substream);
err = substream->ops->prepare(substream);
if (err < 0)
return err;
snd_pcm_default_page_ops(struct snd_pcm_substream *substream, unsigned long ofs)
{
void *vaddr = substream->runtime->dma_area + ofs;
- return virt_to_page(vaddr);
+
+ switch (substream->dma_buffer.dev.type) {
+#ifdef CONFIG_SND_DMA_SGBUF
+ case SNDRV_DMA_TYPE_DEV_SG:
+ case SNDRV_DMA_TYPE_DEV_UC_SG:
+ return snd_pcm_sgbuf_ops_page(substream, ofs);
+#endif /* CONFIG_SND_DMA_SGBUF */
+ case SNDRV_DMA_TYPE_VMALLOC:
+ return vmalloc_to_page(vaddr);
+ default:
+ return virt_to_page(vaddr);
+ }
}
/*
#endif /* CONFIG_GENERIC_ALLOCATOR */
#ifndef CONFIG_X86 /* for avoiding warnings arch/x86/mm/pat.c */
if (IS_ENABLED(CONFIG_HAS_DMA) && !substream->ops->page &&
- substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
+ (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV ||
+ substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_UC))
return dma_mmap_coherent(substream->dma_buffer.dev.dev,
area,
substream->runtime->dma_area,