147 lines
3.0 KiB
C
147 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* 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>
|
|
*
|
|
* 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/regulator/consumer.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_stat;
|
|
u8 mfg_cmd;
|
|
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 device *dev, u8 *xfer_buf, u16 addr, u8 length,
|
|
const void *values);
|
|
int (*read)(struct device *dev, u8 *xfer_buf, u16 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;
|
|
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;
|
|
|
|
struct regulator_bulk_data regulators[2];
|
|
struct gpio_desc *reset_gpio;
|
|
bool use_hndshk;
|
|
u8 act_dist;
|
|
u8 act_intrvl;
|
|
u8 tch_tmout;
|
|
u8 lp_intrvl;
|
|
u8 *bl_keys;
|
|
|
|
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);
|
|
|
|
int cyttsp_i2c_write_block_data(struct device *dev, u8 *xfer_buf, u16 addr,
|
|
u8 length, const void *values);
|
|
int cyttsp_i2c_read_block_data(struct device *dev, u8 *xfer_buf, u16 addr,
|
|
u8 length, void *values);
|
|
extern const struct dev_pm_ops cyttsp_pm_ops;
|
|
|
|
#endif /* __CYTTSP_CORE_H__ */
|