147 lines
4.0 KiB
C
147 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Himax Android Driver Sample Code for QCT platform
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*
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* Copyright (C) 2019 Himax Corporation.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef HIMAX_PLATFORM_H
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#define HIMAX_PLATFORM_H
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#include <linux/delay.h>
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#include <linux/fs.h>
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#include <linux/gpio.h>
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#include <linux/types.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#if defined(CONFIG_HMX_DB)
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#include <linux/regulator/consumer.h>
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#endif
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#define HIMAX_I2C_RETRY_TIMES 3
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#if defined(CONFIG_TOUCHSCREEN_HIMAX_DEBUG)
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#define D(x...) pr_debug("[HXTP] " x)
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#define I(x...) pr_info("[HXTP] " x)
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#define W(x...) pr_warn("[HXTP][WARNING] " x)
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#define E(x...) pr_err("[HXTP][ERROR] " x)
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#define DIF(x...) \
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do { \
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if (debug_flag) \
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pr_debug("[HXTP][DEBUG] " x) \
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} while (0)
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#else
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#define D(x...)
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#define I(x...)
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#define W(x...)
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#define E(x...)
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#define DIF(x...)
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#endif
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#if defined(CONFIG_HMX_DB)
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/* Analog voltage @2.7 V */
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#define HX_VTG_MIN_UV 2700000
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#define HX_VTG_MAX_UV 3300000
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#define HX_ACTIVE_LOAD_UA 15000
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#define HX_LPM_LOAD_UA 10
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/* Digital voltage @1.8 V */
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#define HX_VTG_DIG_MIN_UV 1800000
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#define HX_VTG_DIG_MAX_UV 1800000
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#define HX_ACTIVE_LOAD_DIG_UA 10000
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#define HX_LPM_LOAD_DIG_UA 10
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#define HX_I2C_VTG_MIN_UV 1800000
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#define HX_I2C_VTG_MAX_UV 1800000
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#define HX_I2C_LOAD_UA 10000
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#define HX_I2C_LPM_LOAD_UA 10
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#endif
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#define HIMAX_common_NAME "himax_tp"
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#define HIMAX_I2C_ADDR 0x48
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#define INPUT_DEV_NAME "himax-touchscreen"
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struct himax_i2c_platform_data {
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int abs_x_min;
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int abs_x_max;
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int abs_x_fuzz;
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int abs_y_min;
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int abs_y_max;
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int abs_y_fuzz;
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int abs_pressure_min;
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int abs_pressure_max;
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int abs_pressure_fuzz;
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int abs_width_min;
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int abs_width_max;
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int screenWidth;
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int screenHeight;
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uint8_t fw_version;
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uint8_t tw_id;
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uint8_t powerOff3V3;
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uint8_t cable_config[2];
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uint8_t protocol_type;
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int gpio_irq;
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int gpio_reset;
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int gpio_3v3_en;
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int gpio_pon;
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int (*power)(int on);
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void (*reset)(void);
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struct himax_virtual_key *virtual_key;
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struct kobject *vk_obj;
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struct kobj_attribute *vk2Use;
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int hx_config_size;
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#if defined(CONFIG_HMX_DB)
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bool i2c_pull_up;
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bool digital_pwr_regulator;
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int reset_gpio;
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u32 reset_gpio_flags;
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int irq_gpio;
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u32 irq_gpio_flags;
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struct regulator *vcc_ana; /* For Dragon Board */
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struct regulator *vcc_dig; /* For Dragon Board */
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struct regulator *vcc_i2c; /* For Dragon Board */
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#endif
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};
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extern int himax_bus_read(uint8_t command, uint8_t *data,
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uint32_t length, uint8_t toRetry);
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extern int himax_bus_write(uint8_t command, uint8_t *data,
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uint32_t length, uint8_t toRetry);
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extern int himax_bus_write_command(uint8_t command,
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uint8_t toRetry);
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extern void himax_int_enable(int enable);
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extern int himax_ts_register_interrupt(void);
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int himax_ts_unregister_interrupt(void);
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extern uint8_t himax_int_gpio_read(int pinnum);
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extern int himax_gpio_power_config(struct himax_i2c_platform_data *pdata);
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void himax_gpio_power_deconfig(struct himax_i2c_platform_data *pdata);
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#if defined(HX_CONFIG_FB)
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extern int fb_notifier_callback(struct notifier_block *self,
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unsigned long event, void *data);
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#elif defined(HX_CONFIG_DRM)
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extern int drm_notifier_callback(struct notifier_block *self,
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unsigned long event, void *data);
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#endif
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extern struct himax_ts_data *private_ts;
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extern void himax_ts_work(struct himax_ts_data *ts);
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extern enum hrtimer_restart himax_ts_timer_func(struct hrtimer *timer);
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extern int himax_chip_common_init(void);
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extern void himax_chip_common_deinit(void);
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#endif
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