diff options
| -rw-r--r-- | include/sound/sof.h | 5 | ||||
| -rw-r--r-- | sound/soc/sof/core.c | 9 | ||||
| -rw-r--r-- | sound/soc/sof/sof-priv.h | 11 |
3 files changed, 25 insertions, 0 deletions
diff --git a/include/sound/sof.h b/include/sound/sof.h index 266e66318f9c..d3c41f87ac31 100644 --- a/include/sound/sof.h +++ b/include/sound/sof.h @@ -21,6 +21,7 @@ struct snd_sof_dev; /** * enum sof_fw_state - DSP firmware state definitions * @SOF_FW_BOOT_NOT_STARTED: firmware boot is not yet started + * @SOF_DSPLESS_MODE: DSP is not used * @SOF_FW_BOOT_PREPARE: preparing for boot (firmware loading for exaqmple) * @SOF_FW_BOOT_IN_PROGRESS: firmware boot is in progress * @SOF_FW_BOOT_FAILED: firmware boot failed @@ -31,6 +32,7 @@ struct snd_sof_dev; */ enum sof_fw_state { SOF_FW_BOOT_NOT_STARTED = 0, + SOF_DSPLESS_MODE, SOF_FW_BOOT_PREPARE, SOF_FW_BOOT_IN_PROGRESS, SOF_FW_BOOT_FAILED, @@ -130,6 +132,9 @@ struct sof_dev_desc { unsigned int ipc_supported_mask; enum sof_ipc_type ipc_default; + /* The platform supports DSPless mode */ + bool dspless_mode_supported; + /* defaults paths for firmware, library and topology files */ const char *default_fw_path[SOF_IPC_TYPE_COUNT]; const char *default_lib_path[SOF_IPC_TYPE_COUNT]; diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index 7de8673a01ce..06bcae631612 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -365,6 +365,15 @@ int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data) if (sof_core_debug) dev_info(dev, "sof_debug value: %#x\n", sof_core_debug); + if (sof_debug_check_flag(SOF_DBG_DSPLESS_MODE)) { + if (plat_data->desc->dspless_mode_supported) { + dev_info(dev, "Switching to DSPless mode\n"); + sdev->dspless_mode_selected = true; + } else { + dev_info(dev, "DSPless mode is not supported by the platform\n"); + } + } + /* check IPC support */ if (!(BIT(plat_data->ipc_type) & plat_data->desc->ipc_supported_mask)) { dev_err(dev, "ipc_type %d is not supported on this platform, mask is %#x\n", diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 5f919162a555..1170989bea57 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -48,6 +48,7 @@ struct snd_sof_pcm_stream; #define SOF_DBG_FORCE_NOCODEC BIT(10) /* ignore all codec-related * configurations */ +#define SOF_DBG_DSPLESS_MODE BIT(15) /* Do not initialize and use the DSP */ /* Flag definitions used for controlling the DSP dump behavior */ #define SOF_DBG_DUMP_REGS BIT(0) @@ -528,6 +529,16 @@ struct snd_sof_dev { spinlock_t ipc_lock; /* lock for IPC users */ spinlock_t hw_lock; /* lock for HW IO access */ + /* + * When true the DSP is not used. + * It is set under the following condition: + * User sets the SOF_DBG_DSPLESS_MODE flag in sof_debug module parameter + * and + * the platform advertises that it can support such mode + * pdata->desc->dspless_mode_supported is true. + */ + bool dspless_mode_selected; + /* Main, Base firmware image */ struct sof_firmware basefw; |