drivers/input/mouse/cypress_ps2.h - maze/linux - Git at Google

 #ifndef _CYPRESS_PS2_H
 #define _CYPRESS_PS2_H

 #include "psmouse.h"

 #define CMD_BITS_MASK 0x03
 #define COMPOSIT(x, s) (((x) & CMD_BITS_MASK) << (s))

 #define ENCODE_CMD(aa, bb, cc, dd) \
 	(COMPOSIT((aa), 6) | COMPOSIT((bb), 4) | COMPOSIT((cc), 2) | COMPOSIT((dd), 0))
 #define CYTP_CMD_ABS_NO_PRESSURE_MODE       ENCODE_CMD(0, 1, 0, 0)
 #define CYTP_CMD_ABS_WITH_PRESSURE_MODE     ENCODE_CMD(0, 1, 0, 1)
 #define CYTP_CMD_SMBUS_MODE                 ENCODE_CMD(0, 1, 1, 0)
 #define CYTP_CMD_STANDARD_MODE              ENCODE_CMD(0, 2, 0, 0)  /* not implemented yet. */
 #define CYTP_CMD_CYPRESS_REL_MODE           ENCODE_CMD(1, 1, 1, 1)  /* not implemented yet. */
 #define CYTP_CMD_READ_CYPRESS_ID            ENCODE_CMD(0, 0, 0, 0)
 #define CYTP_CMD_READ_TP_METRICS            ENCODE_CMD(0, 0, 0, 1)
 #define CYTP_CMD_SET_HSCROLL_WIDTH(w)       ENCODE_CMD(1, 1, 0, (w))
 #define     CYTP_CMD_SET_HSCROLL_MASK       ENCODE_CMD(1, 1, 0, 0)
 #define CYTP_CMD_SET_VSCROLL_WIDTH(w)       ENCODE_CMD(1, 2, 0, (w))
 #define     CYTP_CMD_SET_VSCROLL_MASK       ENCODE_CMD(1, 2, 0, 0)
 #define CYTP_CMD_SET_PALM_GEOMETRY(e)       ENCODE_CMD(1, 2, 1, (e))
 #define     CYTP_CMD_PALM_GEMMETRY_MASK     ENCODE_CMD(1, 2, 1, 0)
 #define CYTP_CMD_SET_PALM_SENSITIVITY(s)    ENCODE_CMD(1, 2, 2, (s))
 #define     CYTP_CMD_PALM_SENSITIVITY_MASK  ENCODE_CMD(1, 2, 2, 0)
 #define CYTP_CMD_SET_MOUSE_SENSITIVITY(s)   ENCODE_CMD(1, 3, ((s) >> 2), (s))
 #define     CYTP_CMD_MOUSE_SENSITIVITY_MASK ENCODE_CMD(1, 3, 0, 0)
 #define CYTP_CMD_REQUEST_BASELINE_STATUS    ENCODE_CMD(2, 0, 0, 1)
 #define CYTP_CMD_REQUEST_RECALIBRATION      ENCODE_CMD(2, 0, 0, 3)

 #define DECODE_CMD_AA(x) (((x) >> 6) & CMD_BITS_MASK)
 #define DECODE_CMD_BB(x) (((x) >> 4) & CMD_BITS_MASK)
 #define DECODE_CMD_CC(x) (((x) >> 2) & CMD_BITS_MASK)
 #define DECODE_CMD_DD(x) ((x) & CMD_BITS_MASK)

 /* Cypress trackpad working mode. */
 #define CYTP_BIT_ABS_PRESSURE    (1 << 3)
 #define CYTP_BIT_ABS_NO_PRESSURE (1 << 2)
 #define CYTP_BIT_CYPRESS_REL     (1 << 1)
 #define CYTP_BIT_STANDARD_REL    (1 << 0)
 #define CYTP_BIT_REL_MASK (CYTP_BIT_CYPRESS_REL | CYTP_BIT_STANDARD_REL)
 #define CYTP_BIT_ABS_MASK (CYTP_BIT_ABS_PRESSURE | CYTP_BIT_ABS_NO_PRESSURE)
 #define CYTP_BIT_ABS_REL_MASK (CYTP_BIT_ABS_MASK | CYTP_BIT_REL_MASK)

 #define CYTP_BIT_HIGH_RATE       (1 << 4)
 /*
  * report mode bit is set, firmware working in Remote Mode.
  * report mode bit is cleared, firmware working in Stream Mode.
  */
 #define CYTP_BIT_REPORT_MODE     (1 << 5)

 /* scrolling width values for set HSCROLL and VSCROLL width command. */
 #define SCROLL_WIDTH_NARROW 1
 #define SCROLL_WIDTH_NORMAL 2
 #define SCROLL_WIDTH_WIDE   3

 #define PALM_GEOMETRY_ENABLE  1
 #define PALM_GEOMETRY_DISABLE 0

 #define TP_METRICS_MASK  0x80
 #define FW_VERSION_MASX    0x7f
 #define FW_VER_HIGH_MASK 0x70
 #define FW_VER_LOW_MASK  0x0f

 /* Times to retry a ps2_command and millisecond delay between tries. */
 #define CYTP_PS2_CMD_TRIES 3
 #define CYTP_PS2_CMD_DELAY 500

 /* time out for PS/2 command only in milliseconds. */
 #define CYTP_CMD_TIMEOUT  200
 #define CYTP_DATA_TIMEOUT 30

 #define CYTP_EXT_CMD   0xe8
 #define CYTP_PS2_RETRY 0xfe
 #define CYTP_PS2_ERROR 0xfc

 #define CYTP_RESP_RETRY 0x01
 #define CYTP_RESP_ERROR 0xfe


 #define CYTP_105001_WIDTH  97   /* Dell XPS 13 */
 #define CYTP_105001_HIGH   59
 #define CYTP_DEFAULT_WIDTH (CYTP_105001_WIDTH)
 #define CYTP_DEFAULT_HIGH  (CYTP_105001_HIGH)

 #define CYTP_ABS_MAX_X     1600
 #define CYTP_ABS_MAX_Y     900
 #define CYTP_MAX_PRESSURE  255
 #define CYTP_MIN_PRESSURE  0

 /* header byte bits of relative package. */
 #define BTN_LEFT_BIT   0x01
 #define BTN_RIGHT_BIT  0x02
 #define BTN_MIDDLE_BIT 0x04
 #define REL_X_SIGN_BIT 0x10
 #define REL_Y_SIGN_BIT 0x20

 /* header byte bits of absolute package. */
 #define ABS_VSCROLL_BIT 0x10
 #define ABS_HSCROLL_BIT 0x20
 #define ABS_MULTIFINGER_TAP 0x04
 #define ABS_EDGE_MOTION_MASK 0x80

 #define DFLT_RESP_BITS_VALID     0x88  /* SMBus bit should not be set. */
 #define DFLT_RESP_SMBUS_BIT      0x80
 #define   DFLT_SMBUS_MODE        0x80
 #define   DFLT_PS2_MODE          0x00
 #define DFLT_RESP_BIT_MODE       0x40
 #define   DFLT_RESP_REMOTE_MODE  0x40
 #define   DFLT_RESP_STREAM_MODE  0x00
 #define DFLT_RESP_BIT_REPORTING  0x20
 #define DFLT_RESP_BIT_SCALING    0x10

 #define TP_METRICS_BIT_PALM               0x80
 #define TP_METRICS_BIT_STUBBORN           0x40
 #define TP_METRICS_BIT_2F_JITTER          0x30
 #define TP_METRICS_BIT_1F_JITTER          0x0c
 #define TP_METRICS_BIT_APA                0x02
 #define TP_METRICS_BIT_MTG                0x01
 #define TP_METRICS_BIT_ABS_PKT_FORMAT_SET 0xf0
 #define TP_METRICS_BIT_2F_SPIKE           0x0c
 #define TP_METRICS_BIT_1F_SPIKE           0x03

 /* bits of first byte response of E9h-Status Request command. */
 #define RESP_BTN_RIGHT_BIT  0x01
 #define RESP_BTN_MIDDLE_BIT 0x02
 #define RESP_BTN_LEFT_BIT   0x04
 #define RESP_SCALING_BIT    0x10
 #define RESP_ENABLE_BIT     0x20
 #define RESP_REMOTE_BIT     0x40
 #define RESP_SMBUS_BIT      0x80

 #define CYTP_MAX_MT_SLOTS 2

 struct cytp_contact {
 	int x;
 	int y;
 	int z;  /* also named as touch pressure. */
 };

 /* The structure of Cypress Trackpad event data. */
 struct cytp_report_data {
 	int contact_cnt;
 	struct cytp_contact contacts[CYTP_MAX_MT_SLOTS];
 	unsigned int left:1;
 	unsigned int right:1;
 	unsigned int middle:1;
 	unsigned int tap:1;  /* multi-finger tap detected. */
 };

 /* The structure of Cypress Trackpad device private data. */
 struct cytp_data {
 	int fw_version;

 	int pkt_size;
 	int mode;

 	int tp_min_pressure;
 	int tp_max_pressure;
 	int tp_width;  /* X direction physical size in mm. */
 	int tp_high;  /* Y direction physical size in mm. */
 	int tp_max_abs_x;  /* Max X absolute units that can be reported. */
 	int tp_max_abs_y;  /* Max Y absolute units that can be reported. */

 	int tp_res_x;  /* X resolution in units/mm. */
 	int tp_res_y;  /* Y resolution in units/mm. */

 	int tp_metrics_supported;
 };


 #ifdef CONFIG_MOUSE_PS2_CYPRESS
 int cypress_detect(struct psmouse *psmouse, bool set_properties);
 int cypress_init(struct psmouse *psmouse);
 bool cypress_supported(void);
 #else
 inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
 {
 	return -ENOSYS;
 }
 inline int cypress_init(struct psmouse *psmouse)
 {
 	return -ENOSYS;
 }
 inline bool cypress_supported(void)
 {
 	return 0;
 }
 #endif /* CONFIG_MOUSE_PS2_CYPRESS */

 #endif  /* _CYPRESS_PS2_H */
	#ifndef _CYPRESS_PS2_H
	#define _CYPRESS_PS2_H

	#include "psmouse.h"

	#define CMD_BITS_MASK 0x03
	#define COMPOSIT(x, s) (((x) & CMD_BITS_MASK) << (s))

	#define ENCODE_CMD(aa, bb, cc, dd) \
	(COMPOSIT((aa), 6) \| COMPOSIT((bb), 4) \| COMPOSIT((cc), 2) \| COMPOSIT((dd), 0))
	#define CYTP_CMD_ABS_NO_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 0)
	#define CYTP_CMD_ABS_WITH_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 1)
	#define CYTP_CMD_SMBUS_MODE ENCODE_CMD(0, 1, 1, 0)
	#define CYTP_CMD_STANDARD_MODE ENCODE_CMD(0, 2, 0, 0) /* not implemented yet. */
	#define CYTP_CMD_CYPRESS_REL_MODE ENCODE_CMD(1, 1, 1, 1) /* not implemented yet. */
	#define CYTP_CMD_READ_CYPRESS_ID ENCODE_CMD(0, 0, 0, 0)
	#define CYTP_CMD_READ_TP_METRICS ENCODE_CMD(0, 0, 0, 1)
	#define CYTP_CMD_SET_HSCROLL_WIDTH(w) ENCODE_CMD(1, 1, 0, (w))
	#define CYTP_CMD_SET_HSCROLL_MASK ENCODE_CMD(1, 1, 0, 0)
	#define CYTP_CMD_SET_VSCROLL_WIDTH(w) ENCODE_CMD(1, 2, 0, (w))
	#define CYTP_CMD_SET_VSCROLL_MASK ENCODE_CMD(1, 2, 0, 0)
	#define CYTP_CMD_SET_PALM_GEOMETRY(e) ENCODE_CMD(1, 2, 1, (e))
	#define CYTP_CMD_PALM_GEMMETRY_MASK ENCODE_CMD(1, 2, 1, 0)
	#define CYTP_CMD_SET_PALM_SENSITIVITY(s) ENCODE_CMD(1, 2, 2, (s))
	#define CYTP_CMD_PALM_SENSITIVITY_MASK ENCODE_CMD(1, 2, 2, 0)
	#define CYTP_CMD_SET_MOUSE_SENSITIVITY(s) ENCODE_CMD(1, 3, ((s) >> 2), (s))
	#define CYTP_CMD_MOUSE_SENSITIVITY_MASK ENCODE_CMD(1, 3, 0, 0)
	#define CYTP_CMD_REQUEST_BASELINE_STATUS ENCODE_CMD(2, 0, 0, 1)
	#define CYTP_CMD_REQUEST_RECALIBRATION ENCODE_CMD(2, 0, 0, 3)

	#define DECODE_CMD_AA(x) (((x) >> 6) & CMD_BITS_MASK)
	#define DECODE_CMD_BB(x) (((x) >> 4) & CMD_BITS_MASK)
	#define DECODE_CMD_CC(x) (((x) >> 2) & CMD_BITS_MASK)
	#define DECODE_CMD_DD(x) ((x) & CMD_BITS_MASK)

	/* Cypress trackpad working mode. */
	#define CYTP_BIT_ABS_PRESSURE (1 << 3)
	#define CYTP_BIT_ABS_NO_PRESSURE (1 << 2)
	#define CYTP_BIT_CYPRESS_REL (1 << 1)
	#define CYTP_BIT_STANDARD_REL (1 << 0)
	#define CYTP_BIT_REL_MASK (CYTP_BIT_CYPRESS_REL \| CYTP_BIT_STANDARD_REL)
	#define CYTP_BIT_ABS_MASK (CYTP_BIT_ABS_PRESSURE \| CYTP_BIT_ABS_NO_PRESSURE)
	#define CYTP_BIT_ABS_REL_MASK (CYTP_BIT_ABS_MASK \| CYTP_BIT_REL_MASK)

	#define CYTP_BIT_HIGH_RATE (1 << 4)
	/*
	* report mode bit is set, firmware working in Remote Mode.
	* report mode bit is cleared, firmware working in Stream Mode.
	*/
	#define CYTP_BIT_REPORT_MODE (1 << 5)

	/* scrolling width values for set HSCROLL and VSCROLL width command. */
	#define SCROLL_WIDTH_NARROW 1
	#define SCROLL_WIDTH_NORMAL 2
	#define SCROLL_WIDTH_WIDE 3

	#define PALM_GEOMETRY_ENABLE 1
	#define PALM_GEOMETRY_DISABLE 0

	#define TP_METRICS_MASK 0x80
	#define FW_VERSION_MASX 0x7f
	#define FW_VER_HIGH_MASK 0x70
	#define FW_VER_LOW_MASK 0x0f

	/* Times to retry a ps2_command and millisecond delay between tries. */
	#define CYTP_PS2_CMD_TRIES 3
	#define CYTP_PS2_CMD_DELAY 500

	/* time out for PS/2 command only in milliseconds. */
	#define CYTP_CMD_TIMEOUT 200
	#define CYTP_DATA_TIMEOUT 30

	#define CYTP_EXT_CMD 0xe8
	#define CYTP_PS2_RETRY 0xfe
	#define CYTP_PS2_ERROR 0xfc

	#define CYTP_RESP_RETRY 0x01
	#define CYTP_RESP_ERROR 0xfe


	#define CYTP_105001_WIDTH 97 /* Dell XPS 13 */
	#define CYTP_105001_HIGH 59
	#define CYTP_DEFAULT_WIDTH (CYTP_105001_WIDTH)
	#define CYTP_DEFAULT_HIGH (CYTP_105001_HIGH)

	#define CYTP_ABS_MAX_X 1600
	#define CYTP_ABS_MAX_Y 900
	#define CYTP_MAX_PRESSURE 255
	#define CYTP_MIN_PRESSURE 0

	/* header byte bits of relative package. */
	#define BTN_LEFT_BIT 0x01
	#define BTN_RIGHT_BIT 0x02
	#define BTN_MIDDLE_BIT 0x04
	#define REL_X_SIGN_BIT 0x10
	#define REL_Y_SIGN_BIT 0x20

	/* header byte bits of absolute package. */
	#define ABS_VSCROLL_BIT 0x10
	#define ABS_HSCROLL_BIT 0x20
	#define ABS_MULTIFINGER_TAP 0x04
	#define ABS_EDGE_MOTION_MASK 0x80

	#define DFLT_RESP_BITS_VALID 0x88 /* SMBus bit should not be set. */
	#define DFLT_RESP_SMBUS_BIT 0x80
	#define DFLT_SMBUS_MODE 0x80
	#define DFLT_PS2_MODE 0x00
	#define DFLT_RESP_BIT_MODE 0x40
	#define DFLT_RESP_REMOTE_MODE 0x40
	#define DFLT_RESP_STREAM_MODE 0x00
	#define DFLT_RESP_BIT_REPORTING 0x20
	#define DFLT_RESP_BIT_SCALING 0x10

	#define TP_METRICS_BIT_PALM 0x80
	#define TP_METRICS_BIT_STUBBORN 0x40
	#define TP_METRICS_BIT_2F_JITTER 0x30
	#define TP_METRICS_BIT_1F_JITTER 0x0c
	#define TP_METRICS_BIT_APA 0x02
	#define TP_METRICS_BIT_MTG 0x01
	#define TP_METRICS_BIT_ABS_PKT_FORMAT_SET 0xf0
	#define TP_METRICS_BIT_2F_SPIKE 0x0c
	#define TP_METRICS_BIT_1F_SPIKE 0x03

	/* bits of first byte response of E9h-Status Request command. */
	#define RESP_BTN_RIGHT_BIT 0x01
	#define RESP_BTN_MIDDLE_BIT 0x02
	#define RESP_BTN_LEFT_BIT 0x04
	#define RESP_SCALING_BIT 0x10
	#define RESP_ENABLE_BIT 0x20
	#define RESP_REMOTE_BIT 0x40
	#define RESP_SMBUS_BIT 0x80

	#define CYTP_MAX_MT_SLOTS 2

	struct cytp_contact {
	int x;
	int y;
	int z; /* also named as touch pressure. */
	};

	/* The structure of Cypress Trackpad event data. */
	struct cytp_report_data {
	int contact_cnt;
	struct cytp_contact contacts[CYTP_MAX_MT_SLOTS];
	unsigned int left:1;
	unsigned int right:1;
	unsigned int middle:1;
	unsigned int tap:1; /* multi-finger tap detected. */
	};

	/* The structure of Cypress Trackpad device private data. */
	struct cytp_data {
	int fw_version;

	int pkt_size;
	int mode;

	int tp_min_pressure;
	int tp_max_pressure;
	int tp_width; /* X direction physical size in mm. */
	int tp_high; /* Y direction physical size in mm. */
	int tp_max_abs_x; /* Max X absolute units that can be reported. */
	int tp_max_abs_y; /* Max Y absolute units that can be reported. */

	int tp_res_x; /* X resolution in units/mm. */
	int tp_res_y; /* Y resolution in units/mm. */

	int tp_metrics_supported;
	};


	#ifdef CONFIG_MOUSE_PS2_CYPRESS
	int cypress_detect(struct psmouse *psmouse, bool set_properties);
	int cypress_init(struct psmouse *psmouse);
	bool cypress_supported(void);
	#else
	inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
	{
	return -ENOSYS;
	}
	inline int cypress_init(struct psmouse *psmouse)
	{
	return -ENOSYS;
	}
	inline bool cypress_supported(void)
	{
	return 0;
	}
	#endif /* CONFIG_MOUSE_PS2_CYPRESS */

	#endif /* _CYPRESS_PS2_H */