diff options
Diffstat (limited to 'sound/soc/sof/trace.c')
-rw-r--r-- | sound/soc/sof/trace.c | 52 |
1 files changed, 38 insertions, 14 deletions
diff --git a/sound/soc/sof/trace.c b/sound/soc/sof/trace.c index ea8e4506d02e..26d9381596ff 100644 --- a/sound/soc/sof/trace.c +++ b/sound/soc/sof/trace.c @@ -11,6 +11,7 @@ #include <linux/debugfs.h> #include <linux/sched/signal.h> #include "sof-priv.h" +#include "sof-audio.h" #include "ops.h" #include "sof-utils.h" @@ -263,7 +264,7 @@ static size_t sof_wait_trace_avail(struct snd_sof_dev *sdev, if (ret) return ret; - if (!sdev->dtrace_is_enabled && sdev->dtrace_draining) { + if (sdev->dtrace_state != SOF_DTRACE_ENABLED && sdev->dtrace_draining) { /* * tracing has ended and all traces have been * read by client, return EOF @@ -344,7 +345,7 @@ static int sof_dfsentry_trace_release(struct inode *inode, struct file *file) struct snd_sof_dev *sdev = dfse->sdev; /* avoid duplicate traces at next open */ - if (!sdev->dtrace_is_enabled) + if (sdev->dtrace_state != SOF_DTRACE_ENABLED) sdev->host_offset = 0; return 0; @@ -384,7 +385,7 @@ static int trace_debugfs_create(struct snd_sof_dev *sdev) return 0; } -int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev) +static int snd_sof_enable_trace(struct snd_sof_dev *sdev) { struct sof_ipc_fw_ready *ready = &sdev->fw_ready; struct sof_ipc_fw_version *v = &ready->version; @@ -395,9 +396,12 @@ int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev) if (!sdev->dtrace_is_supported) return 0; - if (sdev->dtrace_is_enabled || !sdev->dma_trace_pages) + if (sdev->dtrace_state == SOF_DTRACE_ENABLED || !sdev->dma_trace_pages) return -EINVAL; + if (sdev->dtrace_state == SOF_DTRACE_STOPPED) + goto start; + /* set IPC parameters */ params.hdr.cmd = SOF_IPC_GLB_TRACE_MSG; /* PARAMS_EXT is only supported from ABI 3.7.0 onwards */ @@ -435,6 +439,7 @@ int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev) goto trace_release; } +start: ret = snd_sof_dma_trace_trigger(sdev, SNDRV_PCM_TRIGGER_START); if (ret < 0) { dev_err(sdev->dev, @@ -442,7 +447,7 @@ int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev) goto trace_release; } - sdev->dtrace_is_enabled = true; + sdev->dtrace_state = SOF_DTRACE_ENABLED; return 0; @@ -459,7 +464,7 @@ int snd_sof_init_trace(struct snd_sof_dev *sdev) return 0; /* set false before start initialization */ - sdev->dtrace_is_enabled = false; + sdev->dtrace_state = SOF_DTRACE_DISABLED; /* allocate trace page table buffer */ ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev, @@ -498,7 +503,7 @@ int snd_sof_init_trace(struct snd_sof_dev *sdev) init_waitqueue_head(&sdev->trace_sleep); - ret = snd_sof_init_trace_ipc(sdev); + ret = snd_sof_enable_trace(sdev); if (ret < 0) goto table_err; @@ -518,7 +523,8 @@ int snd_sof_trace_update_pos(struct snd_sof_dev *sdev, if (!sdev->dtrace_is_supported) return 0; - if (sdev->dtrace_is_enabled && sdev->host_offset != posn->host_offset) { + if (sdev->dtrace_state == SOF_DTRACE_ENABLED && + sdev->host_offset != posn->host_offset) { sdev->host_offset = posn->host_offset; wake_up(&sdev->trace_sleep); } @@ -537,14 +543,14 @@ void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev) if (!sdev->dtrace_is_supported) return; - if (sdev->dtrace_is_enabled) { + if (sdev->dtrace_state == SOF_DTRACE_ENABLED) { sdev->dtrace_error = true; wake_up(&sdev->trace_sleep); } } EXPORT_SYMBOL(snd_sof_trace_notify_for_error); -void snd_sof_release_trace(struct snd_sof_dev *sdev) +static void snd_sof_release_trace(struct snd_sof_dev *sdev, bool only_stop) { struct sof_ipc_fw_ready *ready = &sdev->fw_ready; struct sof_ipc_fw_version *v = &ready->version; @@ -552,13 +558,14 @@ void snd_sof_release_trace(struct snd_sof_dev *sdev) struct sof_ipc_reply ipc_reply; int ret; - if (!sdev->dtrace_is_supported || !sdev->dtrace_is_enabled) + if (!sdev->dtrace_is_supported || sdev->dtrace_state == SOF_DTRACE_DISABLED) return; ret = snd_sof_dma_trace_trigger(sdev, SNDRV_PCM_TRIGGER_STOP); if (ret < 0) dev_err(sdev->dev, "error: snd_sof_dma_trace_trigger: stop: %d\n", ret); + sdev->dtrace_state = SOF_DTRACE_STOPPED; /* * stop and free trace DMA in the DSP. TRACE_DMA_FREE is only supported from @@ -574,23 +581,40 @@ void snd_sof_release_trace(struct snd_sof_dev *sdev) dev_err(sdev->dev, "DMA_TRACE_FREE failed with error: %d\n", ret); } + if (only_stop) + goto out; + ret = snd_sof_dma_trace_release(sdev); if (ret < 0) dev_err(sdev->dev, "error: fail in snd_sof_dma_trace_release %d\n", ret); - sdev->dtrace_is_enabled = false; + sdev->dtrace_state = SOF_DTRACE_DISABLED; + +out: sdev->dtrace_draining = true; wake_up(&sdev->trace_sleep); } -EXPORT_SYMBOL(snd_sof_release_trace); + +void snd_sof_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state) +{ + snd_sof_release_trace(sdev, pm_state.event == SOF_DSP_PM_D0); +} +EXPORT_SYMBOL(snd_sof_trace_suspend); + +int snd_sof_trace_resume(struct snd_sof_dev *sdev) +{ + return snd_sof_enable_trace(sdev); +} +EXPORT_SYMBOL(snd_sof_trace_resume); void snd_sof_free_trace(struct snd_sof_dev *sdev) { if (!sdev->dtrace_is_supported) return; - snd_sof_release_trace(sdev); + /* release trace */ + snd_sof_release_trace(sdev, false); if (sdev->dma_trace_pages) { snd_dma_free_pages(&sdev->dmatb); |