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/*-
 * Finger Sensing Pad PS/2 mouse driver.
 *
 * Copyright (C) 2005-2007 Asia Vital Components Co., Ltd.
 * Copyright (C) 2005-2012 Tai-hwa Liang, Sentelic Corporation.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation; either version 2
 *   of the License, or (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef	__SENTELIC_H
#define	__SENTELIC_H

/* Finger-sensing Pad information registers */
#define	FSP_REG_DEVICE_ID	0x00
#define	FSP_REG_VERSION		0x01
#define	FSP_REG_REVISION	0x04
#define	FSP_REG_TMOD_STATUS1	0x0B
#define	FSP_BIT_NO_ROTATION	BIT(3)
#define	FSP_REG_PAGE_CTRL	0x0F

/* Finger-sensing Pad control registers */
#define	FSP_REG_SYSCTL1		0x10
#define	FSP_BIT_EN_REG_CLK	BIT(5)
#define	FSP_REG_TMOD_STATUS	0x20
#define	FSP_REG_OPC_QDOWN	0x31
#define	FSP_BIT_EN_OPC_TAG	BIT(7)
#define	FSP_REG_OPTZ_XLO	0x34
#define	FSP_REG_OPTZ_XHI	0x35
#define	FSP_REG_OPTZ_YLO	0x36
#define	FSP_REG_OPTZ_YHI	0x37
#define	FSP_REG_SYSCTL5		0x40
#define	FSP_BIT_90_DEGREE	BIT(0)
#define	FSP_BIT_EN_MSID6	BIT(1)
#define	FSP_BIT_EN_MSID7	BIT(2)
#define	FSP_BIT_EN_MSID8	BIT(3)
#define	FSP_BIT_EN_AUTO_MSID8	BIT(5)
#define	FSP_BIT_EN_PKT_G0	BIT(6)

#define	FSP_REG_ONPAD_CTL	0x43
#define	FSP_BIT_ONPAD_ENABLE	BIT(0)
#define	FSP_BIT_ONPAD_FBBB	BIT(1)
#define	FSP_BIT_FIX_VSCR	BIT(3)
#define	FSP_BIT_FIX_HSCR	BIT(5)
#define	FSP_BIT_DRAG_LOCK	BIT(6)

#define	FSP_REG_SWC1		(0x90)
#define	FSP_BIT_SWC1_EN_ABS_1F	BIT(0)
#define	FSP_BIT_SWC1_EN_GID	BIT(1)
#define	FSP_BIT_SWC1_EN_ABS_2F	BIT(2)
#define	FSP_BIT_SWC1_EN_FUP_OUT	BIT(3)
#define	FSP_BIT_SWC1_EN_ABS_CON	BIT(4)
#define	FSP_BIT_SWC1_GST_GRP0	BIT(5)
#define	FSP_BIT_SWC1_GST_GRP1	BIT(6)
#define	FSP_BIT_SWC1_BX_COMPAT	BIT(7)

#define	FSP_PAGE_0B		(0x0b)
#define	FSP_PAGE_82		(0x82)
#define	FSP_PAGE_DEFAULT	FSP_PAGE_82

#define	FSP_REG_SN0		(0x40)
#define	FSP_REG_SN1		(0x41)
#define	FSP_REG_SN2		(0x42)

/* Finger-sensing Pad packet formating related definitions */

/* absolute packet type */
#define	FSP_PKT_TYPE_NORMAL	(0x00)
#define	FSP_PKT_TYPE_ABS	(0x01)
#define	FSP_PKT_TYPE_NOTIFY	(0x02)
#define	FSP_PKT_TYPE_NORMAL_OPC	(0x03)
#define	FSP_PKT_TYPE_SHIFT	(6)

/* bit definitions for the first byte of report packet */
#define	FSP_PB0_LBTN		BIT(0)
#define	FSP_PB0_RBTN		BIT(1)
#define	FSP_PB0_MBTN		BIT(2)
#define	FSP_PB0_MFMC_FGR2	FSP_PB0_MBTN
#define	FSP_PB0_MUST_SET	BIT(3)
#define	FSP_PB0_PHY_BTN		BIT(4)
#define	FSP_PB0_MFMC		BIT(5)

/* hardware revisions */
#define	FSP_VER_STL3888_A4	(0xC1)
#define	FSP_VER_STL3888_B0	(0xD0)
#define	FSP_VER_STL3888_B1	(0xD1)
#define	FSP_VER_STL3888_B2	(0xD2)
#define	FSP_VER_STL3888_C0	(0xE0)
#define	FSP_VER_STL3888_C1	(0xE1)
#define	FSP_VER_STL3888_D0	(0xE2)
#define	FSP_VER_STL3888_D1	(0xE3)
#define	FSP_VER_STL3888_E0	(0xE4)

#ifdef __KERNEL__

struct fsp_data {
	unsigned char	ver;		/* hardware version */
	unsigned char	rev;		/* hardware revison */
	unsigned int	buttons;	/* Number of buttons */
	unsigned int	flags;
#define	FSPDRV_FLAG_EN_OPC	(0x001)	/* enable on-pad clicking */

	bool		vscroll;	/* Vertical scroll zone enabled */
	bool		hscroll;	/* Horizontal scroll zone enabled */

	unsigned char	last_reg;	/* Last register we requested read from */
	unsigned char	last_val;
	unsigned int	last_mt_fgr;	/* Last seen finger(multitouch) */
};

#ifdef CONFIG_MOUSE_PS2_SENTELIC
extern int fsp_detect(struct psmouse *psmouse, bool set_properties);
extern int fsp_init(struct psmouse *psmouse);
#else
inline int fsp_detect(struct psmouse *psmouse, bool set_properties)
{
	return -ENOSYS;
}
inline int fsp_init(struct psmouse *psmouse)
{
	return -ENOSYS;
}
#endif

#endif	/* __KERNEL__ */

#endif	/* !__SENTELIC_H */