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ipc: dai: add flags for DAI_CONFIG IPC 

The DAI_CONFIG IPC is currently used both for hw_params and
hw_free. For some DAIs, there are hacky ways with e.g. invalid DMA
channels to indicate a hw_free. Rather than adding a new IPC for
hw_params and hw_free, let's add a flag that indicates if the
DAI_CONFIG is really applied during a hw_params or hw_free stage.

This is tagged as a ABI 3.19 change.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
This commit is contained in:
Pierre-Louis Bossart 2021-06-01 16:35:06 -05:00 committed by Liam Girdwood
parent b4febf1779
commit 7ff5290554
1 changed files with 8 additions and 1 deletions
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9
src/include/ipc/dai.h
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@ -52,6 +52,13 @@
#define SOF_DAI_FMT_INV_MASK 0x0f00
#define SOF_DAI_FMT_CLOCK_PROVIDER_MASK 0xf000
/* DAI_CONFIG flags */
#define SOF_DAI_CONFIG_FLAGS_MASK 0x3
#define SOF_DAI_CONFIG_FLAGS_NONE (0 << 0) /**< DAI_CONFIG sent without stage information */
#define SOF_DAI_CONFIG_FLAGS_HW_PARAMS (1 << 0) /**< DAI_CONFIG sent during hw_params stage */
#define SOF_DAI_CONFIG_FLAGS_HW_FREE (2 << 0) /**< DAI_CONFIG sent during hw_free stage */
#define SOF_DAI_CONFIG_FLAGS_RFU (3 << 0) /**< not used, reserved for future use */
/** \brief Types of DAI */
enum sof_ipc_dai_type {
SOF_DAI_INTEL_NONE = 0, /**< None */
@ -72,7 +79,7 @@ struct sof_ipc_dai_config {
/* physical protocol and clocking */
uint16_t format; /**< SOF_DAI_FMT_ */
uint8_t group_id; /**< group ID, 0 means no group (ABI 3.17) */
uint8_t reserved8; /**< alignment */
uint8_t flags; /**< SOF_DAI_CONFIG_FLAGS_ (ABI 3.19) */
/* reserved for future use */
uint32_t reserved[8];