drivers/media/platform/mediatek/mdp/mtk_mdp_ipi.h

Source file repositories/reference/linux-study-clean/drivers/media/platform/mediatek/mdp/mtk_mdp_ipi.h

File Facts

System
Linux kernel
Corpus path
drivers/media/platform/mediatek/mdp/mtk_mdp_ipi.h
Extension
.h
Size
2658 bytes
Lines
121
Domain
Driver Families
Bucket
drivers/media
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 mdp_ipi_init {
	uint32_t msg_id;
	uint32_t ipi_id;
	uint64_t ap_inst;
};

/**
 * struct mdp_ipi_comm - for AP_MDP_PROCESS, AP_MDP_DEINIT
 * @msg_id        : AP_MDP_PROCESS, AP_MDP_DEINIT
 * @ipi_id        : IPI_MDP
 * @ap_inst       : AP mtk_mdp_vpu address
 * @vpu_inst_addr : VPU MDP instance address
 * @padding       : Alignment padding
 */
struct mdp_ipi_comm {
	uint32_t msg_id;
	uint32_t ipi_id;
	uint64_t ap_inst;
	uint32_t vpu_inst_addr;
	uint32_t padding;
};

/**
 * struct mdp_ipi_comm_ack - for VPU_MDP_DEINIT_ACK, VPU_MDP_PROCESS_ACK
 * @msg_id        : VPU_MDP_DEINIT_ACK, VPU_MDP_PROCESS_ACK
 * @ipi_id        : IPI_MDP
 * @ap_inst       : AP mtk_mdp_vpu address
 * @vpu_inst_addr : VPU MDP instance address
 * @status        : VPU exeuction result
 */
struct mdp_ipi_comm_ack {
	uint32_t msg_id;
	uint32_t ipi_id;
	uint64_t ap_inst;
	uint32_t vpu_inst_addr;
	int32_t status;
};

/**
 * struct mdp_config - configured for source/destination image
 * @x        : left
 * @y        : top
 * @w        : width
 * @h        : height
 * @w_stride : bytes in horizontal
 * @h_stride : bytes in vertical
 * @crop_x   : cropped left
 * @crop_y   : cropped top
 * @crop_w   : cropped width
 * @crop_h   : cropped height
 * @format   : color format
 */
struct mdp_config {
	int32_t x;
	int32_t y;
	int32_t w;
	int32_t h;
	int32_t w_stride;
	int32_t h_stride;
	int32_t crop_x;
	int32_t crop_y;
	int32_t crop_w;
	int32_t crop_h;
	int32_t format;
};

struct mdp_buffer {
	uint64_t addr_mva[MTK_MDP_MAX_NUM_PLANE];
	int32_t plane_size[MTK_MDP_MAX_NUM_PLANE];
	int32_t plane_num;
};

struct mdp_config_misc {
	int32_t orientation; /* 0, 90, 180, 270 */
	int32_t hflip; /* 1 will enable the flip */
	int32_t vflip; /* 1 will enable the flip */
	int32_t alpha; /* global alpha */
};

struct mdp_process_vsi {
	struct mdp_config src_config;
	struct mdp_buffer src_buffer;
	struct mdp_config dst_config;
	struct mdp_buffer dst_buffer;
	struct mdp_config_misc misc;
};

#pragma pack(pop)

#endif /* __MTK_MDP_IPI_H__ */

Annotation

Implementation Notes