cmd_kbd_mouse.h

linux下S3C2410的I2C总线的驱动

#ifndef __CMD_KBD_MOUSE_H__
#define __CMD_KBD_MOUSE_H__

#define KBD_TIMEOUT (HZ)		/* Timeout for keyboard command acknowledge */
#define MOUSE_TIMEOUT (HZ)


/*
 *	Keyboard Controller Commands
 */

#define KBD_CCMD_READ_MODE	0x20	/* Read mode bits */
#define KBD_CCMD_WRITE_MODE	0x60	/* Write mode bits */
#define KBD_CCMD_GET_VERSION	0xA1	/* Get controller version */
#define KBD_CCMD_MOUSE_DISABLE	0xA7	/* Disable mouse interface */
#define KBD_CCMD_MOUSE_ENABLE	0xA8	/* Enable mouse interface */
#define KBD_CCMD_TEST_MOUSE	0xA9	/* Mouse interface test */
#define KBD_CCMD_SELF_TEST	0xAA	/* Controller self test */
#define KBD_CCMD_KBD_TEST	0xAB	/* Keyboard interface test */
#define KBD_CCMD_KBD_DISABLE	0xAD	/* Keyboard interface disable */
#define KBD_CCMD_KBD_ENABLE	0xAE	/* Keyboard interface enable */
#define KBD_CCMD_WRITE_AUX_OBUF	0xD3    /* Write to output buffer as if
					   initiated by the auxiliary device */
#define KBD_CCMD_WRITE_MOUSE	0xD4	/* Write the following byte to the mouse */

/*
 *	Keyboard Commands
 */

#define KBD_CMD_SET_LEDS	0xED	/* Set keyboard leds */
#define KBD_CMD_SET_RATE	0xF3	/* Set typematic rate */
#define KBD_CMD_ENABLE		0xF4	/* Enable scanning */
#define KBD_CMD_DISABLE		0xF5	/* Disable scanning */
#define KBD_CMD_RESET		0xFF	/* Reset */

/*
 *	Keyboard Replies
 */

#define KBD_REPLY_POR		0xAA	/* Power on reset */
#define KBD_REPLY_ACK		0xFA	/* Command ACK */
#define KBD_REPLY_RESEND	0xFE	/* Command NACK, send the cmd again */


/*
 *	Mouse Commands
 */

#define AUX_SET_RES		0xE8	/* Set resolution */
#define AUX_SET_SCALE11		0xE6	/* Set 1:1 scaling */
#define AUX_SET_SCALE21		0xE7	/* Set 2:1 scaling */
#define AUX_GET_SCALE		0xE9	/* Get scaling factor */
#define AUX_SET_STREAM		0xEA	/* Set stream mode */
#define AUX_SET_SAMPLE		0xF3	/* Set sample rate */
#define AUX_ENABLE_DEV		0xF4	/* Enable aux device */
#define AUX_DISABLE_DEV		0xF5	/* Disable aux device */
#define AUX_RESET		0xFF	/* Reset aux device */
#define AUX_ACK			0xFA	/* Command byte ACK. */

#define AUX_BUF_SIZE		2048	/* This might be better divisible by
					   three to make overruns stay in sync
					   but then the read function would need
					   a lock etc - ick */

struct aux_queue {
	unsigned long head;
	unsigned long tail;
	wait_queue_head_t proc_list;
	struct fasync_struct *fasync;
	unsigned char buf[AUX_BUF_SIZE];
};

typedef void(*ps2_handle_event)(int ps2n, unsigned char);

static ps2_handle_event __init Ps2_kbd_init_hw(int ps2n);
static ps2_handle_event  __init Ps2_Mouse_init_hw(int ps2n);
static void Ps2_kbd_release(void);

#endif	//#ifndef __CMD_KBD_MOUSE_H__