/*
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of Red Hat
 * not be used in advertising or publicity pertaining to distribution
 * of the software without specific, written prior permission.  Red
 * Hat makes no representations about the suitability of this software
 * for any purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _PS2COMM_H_
#define _PS2COMM_H_

#include <unistd.h>
#include <sys/ioctl.h>
#include "xf86_OSproc.h"

/* acknowledge for commands and parameter */
#define PS2_ACK 			0xFA
#define PS2_ERROR			0xFC

/* standard PS/2 commands */
#define PS2_CMD_RESET			0xFF
#define PS2_CMD_RESEND			0xFE
#define PS2_CMD_SET_DEFAULT		0xF6
#define PS2_CMD_DISABLE			0xF5
#define PS2_CMD_ENABLE			0xF4
#define PS2_CMD_SET_SAMPLE_RATE		0xF3
#define PS2_CMD_READ_DEVICE_TYPE	0xF2
#define PS2_CMD_SET_REMOTE_MODE		0xF0
#define PS2_CMD_SET_WRAP_MODE		0xEE
#define PS2_CMD_RESET_WRAP_MODE		0xEC
#define PS2_CMD_READ_DATA		0xEB
#define PS2_CMD_SET_STREAM_MODE		0xEA
#define PS2_CMD_STATUS_REQUEST		0xE9
#define PS2_CMD_SET_RESOLUTION		0xE8
#define PS2_CMD_SET_SCALING_2_1		0xE7
#define PS2_CMD_SET_SCALING_1_1		0xE6

/* synaptics modes */
#define SYN_BIT_ABSOLUTE_MODE		(1 << 7)
#define SYN_BIT_HIGH_RATE		(1 << 6)
#define SYN_BIT_SLEEP_MODE		(1 << 3)
#define SYN_BIT_DISABLE_GESTURE		(1 << 2)
#define SYN_BIT_W_MODE			(1 << 0)

/* synaptics model ID bits */
#define SYN_MODEL_ROT180(synhw) 	((synhw)->model_id & (1 << 23))
#define SYN_MODEL_PORTRAIT(synhw)	((synhw)->model_id & (1 << 22))
#define SYN_MODEL_SENSOR(synhw)		(((synhw)->model_id >> 16) & 0x3f)
#define SYN_MODEL_HARDWARE(synhw)	(((synhw)->model_id >> 9) & 0x7f)
#define SYN_MODEL_NEWABS(synhw)		((synhw)->model_id & (1 << 7))
#define SYN_MODEL_PEN(synhw)		((synhw)->model_id & (1 << 6))
#define SYN_MODEL_SIMPLIC(synhw)	((synhw)->model_id & (1 << 5))
#define SYN_MODEL_GEOMETRY(synhw)	((synhw)->model_id & 0x0f)

/* synaptics capability bits */
#define SYN_CAP_EXTENDED(synhw)		((synhw)->capabilities & (1 << 23))
#define SYN_CAP_MIDDLE_BUTTON(synhw)	((synhw)->capabilities & (1 << 18))
#define SYN_CAP_PASSTHROUGH(synhw)	((synhw)->capabilities & (1 << 7))
#define SYN_CAP_SLEEP(synhw)		((synhw)->capabilities & (1 << 4))
#define SYN_CAP_FOUR_BUTTON(synhw)	((synhw)->capabilities & (1 << 3))
#define SYN_CAP_MULTIFINGER(synhw)	((synhw)->capabilities & (1 << 1))
#define SYN_CAP_PALMDETECT(synhw)	((synhw)->capabilities & (1 << 0))
#define SYN_CAP_VALID(synhw)		((((synhw)->capabilities & 0x00ff00) >> 8) == 0x47)
#define SYN_EXT_CAP_REQUESTS(synhw)	(((synhw)->capabilities & 0x700000) == 0x100000)
#define SYN_CAP_MULTI_BUTTON_NO(synhw)	(((synhw)->ext_cap & 0x00f000) >> 12)

/* synaptics modes query bits */
#define SYN_MODE_ABSOLUTE(m)		((m) & (1 << 7))
#define SYN_MODE_RATE(m)		((m) & (1 << 6))
#define SYN_MODE_BAUD_SLEEP(m)		((m) & (1 << 3))
#define SYN_MODE_DISABLE_GESTURE(m)	((m) & (1 << 2))
#define SYN_MODE_PACKSIZE(m)		((m) & (1 << 1))
#define SYN_MODE_WMODE(m)		((m) & (1 << 0))
#define SYN_MODE_VALID(m)		(((m) & 0xffff00) == 0x3B47)

/* synaptics identify query bits */
#define SYN_ID_MODEL(synhw)		(((synhw)->identity >> 4) & 0x0f)
#define SYN_ID_MAJOR(synhw)		((synhw)->identity & 0x0f)
#define SYN_ID_MINOR(synhw)		(((synhw)->identity >> 16) & 0xff)
#define SYN_ID_IS_SYNAPTICS(synhw)	((((synhw)->identity >> 8) & 0xff) == 0x47)

typedef unsigned char byte;

struct PS2SynapticsHwInfo {
    unsigned int model_id;		/* Model-ID */
    unsigned int capabilities;		/* Capabilities */
    unsigned int ext_cap;		/* Extended Capabilities */
    unsigned int identity;		/* Identification */
};

Bool ps2_putbyte(int fd, byte b);
void ps2_print_ident(const struct PS2SynapticsHwInfo *synhw);
Bool PS2ReadHwStateProto(InputInfoPtr pInfo,
			struct SynapticsProtocolOperations *proto_ops,
			struct CommData *comm, struct SynapticsHwState *hwRet);

#endif /* _PS2COMM_H_ */