| /* 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/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_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; |
| char phys[32]; |
| 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 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__ */ |
