include/linux/rtsx_usb.h

Source file repositories/reference/linux-study-clean/include/linux/rtsx_usb.h

File Facts

System
Linux kernel
Corpus path
include/linux/rtsx_usb.h
Extension
.h
Size
16109 bytes
Lines
631
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 rtsx_ucr {
	u16			vendor_id;
	u16			product_id;

	int			package;
	u8			ic_version;
	bool			is_rts5179;

	unsigned int		cur_clk;

	u8			*cmd_buf;
	unsigned int		cmd_idx;
	u8			*rsp_buf;

	struct usb_device	*pusb_dev;
	struct usb_interface	*pusb_intf;
	struct usb_sg_request	current_sg;

	struct timer_list	sg_timer;
	struct mutex		dev_mutex;
};

/* buffer size */
#define IOBUF_SIZE		1024

/* prototypes of exported functions */
extern int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status);

extern int rtsx_usb_read_register(struct rtsx_ucr *ucr, u16 addr, u8 *data);
extern int rtsx_usb_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask,
		u8 data);

extern int rtsx_usb_ep0_write_register(struct rtsx_ucr *ucr, u16 addr, u8 mask,
		u8 data);
extern int rtsx_usb_ep0_read_register(struct rtsx_ucr *ucr, u16 addr,
		u8 *data);

extern void rtsx_usb_add_cmd(struct rtsx_ucr *ucr, u8 cmd_type,
		u16 reg_addr, u8 mask, u8 data);
extern int rtsx_usb_send_cmd(struct rtsx_ucr *ucr, u8 flag, int timeout);
extern int rtsx_usb_get_rsp(struct rtsx_ucr *ucr, int rsp_len, int timeout);
extern int rtsx_usb_transfer_data(struct rtsx_ucr *ucr, unsigned int pipe,
			      void *buf, unsigned int len, int use_sg,
			      unsigned int *act_len, int timeout);

extern int rtsx_usb_read_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len);
extern int rtsx_usb_write_ppbuf(struct rtsx_ucr *ucr, u8 *buf, int buf_len);
extern int rtsx_usb_switch_clock(struct rtsx_ucr *ucr, unsigned int card_clock,
		u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk);
extern int rtsx_usb_card_exclusive_check(struct rtsx_ucr *ucr, int card);

/* card status */
#define SD_CD		0x01
#define MS_CD		0x02
#define XD_CD		0x04
#define CD_MASK		(SD_CD | MS_CD | XD_CD)
#define SD_WP		0x08

/* OCPCTL */
#define MS_OCP_DETECT_EN		0x08
#define	MS_OCP_INT_EN			0x04
#define	MS_OCP_INT_CLR			0x02
#define	MS_OCP_CLEAR			0x01

/* OCPSTAT */
#define MS_OCP_DETECT			0x80
#define MS_OCP_NOW			0x02
#define MS_OCP_EVER			0x01

/* reader command field offset & parameters */
#define READ_REG_CMD		0
#define WRITE_REG_CMD		1
#define CHECK_REG_CMD		2

#define PACKET_TYPE		4
#define CNT_H			5
#define CNT_L			6
#define STAGE_FLAG		7
#define CMD_OFFSET		8
#define SEQ_WRITE_DATA_OFFSET	12

#define BATCH_CMD		0
#define SEQ_READ		1
#define SEQ_WRITE		2

#define STAGE_R			0x01
#define STAGE_DI		0x02
#define STAGE_DO		0x04
#define STAGE_MS_STATUS		0x08
#define STAGE_XD_STATUS		0x10

Annotation

Implementation Notes