include/linux/firmware/thead/thead,th1520-aon.h

Source file repositories/reference/linux-study-clean/include/linux/firmware/thead/thead,th1520-aon.h

File Facts

System
Linux kernel
Corpus path
include/linux/firmware/thead/thead,th1520-aon.h
Extension
.h
Size
3680 bytes
Lines
127
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct th1520_aon_rpc_msg_hdr {
	u8 ver; /* version of msg hdr */
	u8 size; /*  msg size ,uinit in bytes,the size includes rpc msg header self */
	u8 svc; /* rpc main service id */
	u8 func; /* rpc sub func id of specific service, sent by caller */
} __packed __aligned(1);

struct th1520_aon_rpc_ack_common {
	struct th1520_aon_rpc_msg_hdr hdr;
	u8 err_code;
} __packed __aligned(1);

#define RPC_SVC_MSG_TYPE_DATA 0
#define RPC_SVC_MSG_TYPE_ACK 1
#define RPC_SVC_MSG_NEED_ACK 0
#define RPC_SVC_MSG_NO_NEED_ACK 1

#define RPC_GET_VER(MESG) ((MESG)->ver)
#define RPC_SET_VER(MESG, VER) ((MESG)->ver = (VER))
#define RPC_GET_SVC_ID(MESG) ((MESG)->svc & 0x3F)
#define RPC_SET_SVC_ID(MESG, ID) ((MESG)->svc |= 0x3F & (ID))
#define RPC_GET_SVC_FLAG_MSG_TYPE(MESG) (((MESG)->svc & 0x80) >> 7)
#define RPC_SET_SVC_FLAG_MSG_TYPE(MESG, TYPE) ((MESG)->svc |= (TYPE) << 7)
#define RPC_GET_SVC_FLAG_ACK_TYPE(MESG) (((MESG)->svc & 0x40) >> 6)
#define RPC_SET_SVC_FLAG_ACK_TYPE(MESG, ACK) ((MESG)->svc |= (ACK) << 6)

/*
 * Defines for SC PM Power Mode
 */
#define TH1520_AON_PM_PW_MODE_OFF 0 /* Power off */
#define TH1520_AON_PM_PW_MODE_STBY 1 /* Power in standby */
#define TH1520_AON_PM_PW_MODE_LP 2 /* Power in low-power */
#define TH1520_AON_PM_PW_MODE_ON 3 /* Power on */

/*
 * Defines for AON power islands
 */
#define TH1520_AON_AUDIO_PD 0
#define TH1520_AON_VDEC_PD 1
#define TH1520_AON_NPU_PD 2
#define TH1520_AON_VENC_PD 3
#define TH1520_AON_GPU_PD 4
#define TH1520_AON_DSP0_PD 5
#define TH1520_AON_DSP1_PD 6

struct th1520_aon_chan *th1520_aon_init(struct device *dev);
void th1520_aon_deinit(struct th1520_aon_chan *aon_chan);

int th1520_aon_call_rpc(struct th1520_aon_chan *aon_chan, void *msg);
int th1520_aon_power_update(struct th1520_aon_chan *aon_chan, u16 rsrc,
			    bool power_on);

#endif /* _THEAD_AON_H */

Annotation

Implementation Notes