drivers/hid/amd-sfh-hid/amd_sfh_common.h

Source file repositories/reference/linux-study-clean/drivers/hid/amd-sfh-hid/amd_sfh_common.h

File Facts

System
Linux kernel
Corpus path
drivers/hid/amd-sfh-hid/amd_sfh_common.h
Extension
.h
Size
2880 bytes
Lines
104
Domain
Driver Families
Bucket
drivers/hid
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 amd_mp2_sensor_info {
	u8 sensor_idx;
	u32 period;
	dma_addr_t dma_address;
};

struct sfh_dev_status {
	bool is_hpd_present;
	bool is_hpd_enabled;
	bool is_als_present;
	bool is_sra_present;
};

struct amd_mp2_dev {
	struct pci_dev *pdev;
	struct amdtp_cl_data *cl_data;
	void __iomem *mmio;
	void __iomem *vsbase;
	const struct amd_sfh1_1_ops *sfh1_1_ops;
	struct amd_mp2_ops *mp2_ops;
	struct amd_input_data in_data;
	/* mp2 active control status */
	u32 mp2_acs;
	struct sfh_dev_status dev_en;
	struct work_struct work;
	/* mp2 to protect data */
	struct mutex lock;
	u8 init_done;
	u8 rver;
};

struct amd_mp2_ops {
	void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
	void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx);
	void (*stop_all)(struct amd_mp2_dev *privdata);
	int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts);
	void (*clear_intr)(struct amd_mp2_dev *privdata);
	int (*init_intr)(struct amd_mp2_dev *privdata);
	int (*discovery_status)(struct amd_mp2_dev *privdata);
	void (*suspend)(struct amd_mp2_dev *mp2);
	void (*resume)(struct amd_mp2_dev *mp2);
	void (*remove)(void *privdata);
	int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]);
	u32 (*get_desc_sz)(int sensor_idx, int descriptor_name);
	u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report);
	u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id,
			 struct amd_input_data *in_data);
};

void amd_sfh_work(struct work_struct *work);
void amd_sfh_work_buffer(struct work_struct *work);
void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata);
int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata);
void amd_sfh_clear_intr(struct amd_mp2_dev *privdata);
int amd_sfh_irq_init(struct amd_mp2_dev *privdata);

static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx)
{
	return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) :  AMD_C2P_MSG(idx);
}

static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx)
{
	return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) :  AMD_P2C_MSG(idx);
}
#endif

Annotation

Implementation Notes