mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-25 12:04:46 +08:00
4065d1e7b2
Cypress TrueTouch(tm) Standard Product controllers are found in a wide range of embedded devices. This driver add support for a variety of TTSP controllers. Since the hardware is capable of tracking identifiable contacts, multi-touch protocol type B (stateful) is used to report contact information. The driver is composed of a core driver that process the data sent by the contacts and a set of bus specific interface modules. This patch adds the base core TTSP driver. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
/*
|
|
* Header file for:
|
|
* Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers.
|
|
* For use with Cypress Txx3xx parts.
|
|
* Supported parts include:
|
|
* CY8CTST341
|
|
* CY8CTMA340
|
|
*
|
|
* Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
|
|
* Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2, and only version 2, as published by the
|
|
* Free Software Foundation.
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* Contact Cypress Semiconductor at www.cypress.com <kev@cypress.com>
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef __CYTTSP_CORE_H__
|
|
#define __CYTTSP_CORE_H__
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/err.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/device.h>
|
|
#include <linux/input/cyttsp.h>
|
|
|
|
#define CY_NUM_RETRY 16 /* max number of retries for read ops */
|
|
|
|
struct cyttsp_tch {
|
|
__be16 x, y;
|
|
u8 z;
|
|
} __packed;
|
|
|
|
/* TrueTouch Standard Product Gen3 interface definition */
|
|
struct cyttsp_xydata {
|
|
u8 hst_mode;
|
|
u8 tt_mode;
|
|
u8 tt_stat;
|
|
struct cyttsp_tch tch1;
|
|
u8 touch12_id;
|
|
struct cyttsp_tch tch2;
|
|
u8 gest_cnt;
|
|
u8 gest_id;
|
|
struct cyttsp_tch tch3;
|
|
u8 touch34_id;
|
|
struct cyttsp_tch tch4;
|
|
u8 tt_undef[3];
|
|
u8 act_dist;
|
|
u8 tt_reserved;
|
|
} __packed;
|
|
|
|
|
|
/* TTSP System Information interface definition */
|
|
struct cyttsp_sysinfo_data {
|
|
u8 hst_mode;
|
|
u8 mfg_cmd;
|
|
u8 mfg_stat;
|
|
u8 cid[3];
|
|
u8 tt_undef1;
|
|
u8 uid[8];
|
|
u8 bl_verh;
|
|
u8 bl_verl;
|
|
u8 tts_verh;
|
|
u8 tts_verl;
|
|
u8 app_idh;
|
|
u8 app_idl;
|
|
u8 app_verh;
|
|
u8 app_verl;
|
|
u8 tt_undef[5];
|
|
u8 scn_typ;
|
|
u8 act_intrvl;
|
|
u8 tch_tmout;
|
|
u8 lp_intrvl;
|
|
};
|
|
|
|
/* TTSP Bootloader Register Map interface definition */
|
|
#define CY_BL_CHKSUM_OK 0x01
|
|
struct cyttsp_bootloader_data {
|
|
u8 bl_file;
|
|
u8 bl_status;
|
|
u8 bl_error;
|
|
u8 blver_hi;
|
|
u8 blver_lo;
|
|
u8 bld_blver_hi;
|
|
u8 bld_blver_lo;
|
|
u8 ttspver_hi;
|
|
u8 ttspver_lo;
|
|
u8 appid_hi;
|
|
u8 appid_lo;
|
|
u8 appver_hi;
|
|
u8 appver_lo;
|
|
u8 cid_0;
|
|
u8 cid_1;
|
|
u8 cid_2;
|
|
};
|
|
|
|
struct cyttsp;
|
|
|
|
struct cyttsp_bus_ops {
|
|
u16 bustype;
|
|
int (*write)(struct cyttsp *ts,
|
|
u8 addr, u8 length, const void *values);
|
|
int (*read)(struct cyttsp *ts, u8 addr, u8 length, void *values);
|
|
};
|
|
|
|
enum cyttsp_state {
|
|
CY_IDLE_STATE,
|
|
CY_ACTIVE_STATE,
|
|
CY_BL_STATE,
|
|
};
|
|
|
|
struct cyttsp {
|
|
struct device *dev;
|
|
int irq;
|
|
struct input_dev *input;
|
|
char phys[32];
|
|
const struct cyttsp_platform_data *pdata;
|
|
const struct cyttsp_bus_ops *bus_ops;
|
|
struct cyttsp_bootloader_data bl_data;
|
|
struct cyttsp_sysinfo_data sysinfo_data;
|
|
struct cyttsp_xydata xy_data;
|
|
struct completion bl_ready;
|
|
enum cyttsp_state state;
|
|
bool suspended;
|
|
|
|
u8 xfer_buf[] ____cacheline_aligned;
|
|
};
|
|
|
|
struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops,
|
|
struct device *dev, int irq, size_t xfer_buf_size);
|
|
void cyttsp_remove(struct cyttsp *ts);
|
|
|
|
extern const struct dev_pm_ops cyttsp_pm_ops;
|
|
|
|
#endif /* __CYTTSP_CORE_H__ */
|