08dbd0f8ef
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 94 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.043630402@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
147 lines
3.0 KiB
C
147 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Header file for:
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* Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers.
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* For use with Cypress Txx3xx parts.
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* Supported parts include:
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* CY8CTST341
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* CY8CTMA340
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*
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* Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
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* Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
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*
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* Contact Cypress Semiconductor at www.cypress.com <kev@cypress.com>
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*/
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#ifndef __CYTTSP_CORE_H__
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#define __CYTTSP_CORE_H__
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#include <linux/kernel.h>
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/input/cyttsp.h>
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#define CY_NUM_RETRY 16 /* max number of retries for read ops */
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struct cyttsp_tch {
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__be16 x, y;
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u8 z;
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} __packed;
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/* TrueTouch Standard Product Gen3 interface definition */
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struct cyttsp_xydata {
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u8 hst_mode;
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u8 tt_mode;
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u8 tt_stat;
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struct cyttsp_tch tch1;
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u8 touch12_id;
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struct cyttsp_tch tch2;
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u8 gest_cnt;
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u8 gest_id;
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struct cyttsp_tch tch3;
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u8 touch34_id;
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struct cyttsp_tch tch4;
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u8 tt_undef[3];
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u8 act_dist;
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u8 tt_reserved;
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} __packed;
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/* TTSP System Information interface definition */
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struct cyttsp_sysinfo_data {
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u8 hst_mode;
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u8 mfg_stat;
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u8 mfg_cmd;
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u8 cid[3];
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u8 tt_undef1;
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u8 uid[8];
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u8 bl_verh;
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u8 bl_verl;
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u8 tts_verh;
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u8 tts_verl;
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u8 app_idh;
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u8 app_idl;
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u8 app_verh;
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u8 app_verl;
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u8 tt_undef[5];
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u8 scn_typ;
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u8 act_intrvl;
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u8 tch_tmout;
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u8 lp_intrvl;
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};
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/* TTSP Bootloader Register Map interface definition */
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#define CY_BL_CHKSUM_OK 0x01
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struct cyttsp_bootloader_data {
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u8 bl_file;
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u8 bl_status;
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u8 bl_error;
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u8 blver_hi;
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u8 blver_lo;
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u8 bld_blver_hi;
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u8 bld_blver_lo;
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u8 ttspver_hi;
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u8 ttspver_lo;
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u8 appid_hi;
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u8 appid_lo;
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u8 appver_hi;
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u8 appver_lo;
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u8 cid_0;
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u8 cid_1;
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u8 cid_2;
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};
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struct cyttsp;
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struct cyttsp_bus_ops {
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u16 bustype;
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int (*write)(struct device *dev, u8 *xfer_buf, u16 addr, u8 length,
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const void *values);
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int (*read)(struct device *dev, u8 *xfer_buf, u16 addr, u8 length,
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void *values);
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};
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enum cyttsp_state {
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CY_IDLE_STATE,
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CY_ACTIVE_STATE,
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CY_BL_STATE,
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};
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struct cyttsp {
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struct device *dev;
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int irq;
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struct input_dev *input;
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char phys[32];
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const struct cyttsp_bus_ops *bus_ops;
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struct cyttsp_bootloader_data bl_data;
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struct cyttsp_sysinfo_data sysinfo_data;
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struct cyttsp_xydata xy_data;
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struct completion bl_ready;
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enum cyttsp_state state;
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bool suspended;
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struct gpio_desc *reset_gpio;
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bool use_hndshk;
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u8 act_dist;
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u8 act_intrvl;
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u8 tch_tmout;
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u8 lp_intrvl;
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u8 *bl_keys;
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u8 xfer_buf[] ____cacheline_aligned;
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};
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struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops,
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struct device *dev, int irq, size_t xfer_buf_size);
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int cyttsp_i2c_write_block_data(struct device *dev, u8 *xfer_buf, u16 addr,
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u8 length, const void *values);
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int cyttsp_i2c_read_block_data(struct device *dev, u8 *xfer_buf, u16 addr,
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u8 length, void *values);
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extern const struct dev_pm_ops cyttsp_pm_ops;
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#endif /* __CYTTSP_CORE_H__ */
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