include/sound/sof/pm.h

Source file repositories/reference/linux-study-clean/include/sound/sof/pm.h

File Facts

System
Linux kernel
Corpus path
include/sound/sof/pm.h
Extension
.h
Size
1151 bytes
Lines
57
Domain
Driver Families
Bucket
include/sound
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct sof_ipc_pm_ctx_elem {
	struct sof_ipc_hdr hdr;
	uint32_t type;
	uint32_t size;
	uint64_t addr;
}  __packed;

/*
 * PM context - SOF_IPC_PM_CTX_SAVE, SOF_IPC_PM_CTX_RESTORE,
 * SOF_IPC_PM_CTX_SIZE
 */
struct sof_ipc_pm_ctx {
	struct sof_ipc_cmd_hdr hdr;
	struct sof_ipc_host_buffer buffer;
	uint32_t num_elems;
	uint32_t size;

	/* reserved for future use */
	uint32_t reserved[8];

	struct sof_ipc_pm_ctx_elem elems[];
} __packed;

/* enable or disable cores - SOF_IPC_PM_CORE_ENABLE */
struct sof_ipc_pm_core_config {
	struct sof_ipc_cmd_hdr hdr;
	uint32_t enable_mask;
} __packed;

struct sof_ipc_pm_gate {
	struct sof_ipc_cmd_hdr hdr;
	uint32_t flags;	/* platform specific */

	/* reserved for future use */
	uint32_t reserved[5];
} __packed;

#endif

Annotation

Implementation Notes