753 lines
20 KiB
C
Executable file
753 lines
20 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include "tpd.h"
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#include <linux/slab.h>
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#include <linux/device.h>
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#include <linux/miscdevice.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/fb.h>
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#include <linux/pinctrl/consumer.h>
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#ifdef CONFIG_MTK_MT6306_GPIO_SUPPORT
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#include <mtk_6306_gpio.h>
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#endif
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#ifdef CONFIG_COMPAT
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#include <linux/compat.h>
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#endif
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#if defined(CONFIG_MTK_S3320) || defined(CONFIG_MTK_S3320_50) \
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|| defined(CONFIG_MTK_S3320_47) || defined(CONFIG_MTK_MIT200) \
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|| defined(CONFIG_TOUCHSCREEN_SYNAPTICS_S3528) \
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|| defined(CONFIG_MTK_S7020) \
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|| defined(CONFIG_TOUCHSCREEN_MTK_SYNAPTICS_3320_50)
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#include <linux/input/mt.h>
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#endif /* CONFIG_MTK_S3320 */
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/* for magnify velocity******************************************** */
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#define TOUCH_IOC_MAGIC 'A'
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#define TPD_GET_VELOCITY_CUSTOM_X _IO(TOUCH_IOC_MAGIC, 0)
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#define TPD_GET_VELOCITY_CUSTOM_Y _IO(TOUCH_IOC_MAGIC, 1)
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#define TPD_GET_FILTER_PARA _IOWR(TOUCH_IOC_MAGIC, 2, struct tpd_filter_t)
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#ifdef CONFIG_COMPAT
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#define COMPAT_TPD_GET_FILTER_PARA _IOWR(TOUCH_IOC_MAGIC, \
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2, struct tpd_filter_t)
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#endif
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struct tpd_filter_t tpd_filter;
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struct tpd_dts_info tpd_dts_data;
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struct pinctrl *pinctrl1;
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struct pinctrl_state *pins_default;
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struct pinctrl_state *eint_as_int, *eint_output0,
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*eint_output1, *rst_output0, *rst_output1;
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const struct of_device_id touch_of_match[] = {
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{ .compatible = "goodix,touch", },
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{},
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};
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void tpd_get_dts_info(void)
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{
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struct device_node *node1 = NULL;
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int key_dim_local[16], i;
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node1 = of_find_matching_node(node1, touch_of_match);
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if (node1) {
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of_property_read_u32(node1,
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"tpd-max-touch-num", &tpd_dts_data.touch_max_num);
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of_property_read_u32(node1,
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"use-tpd-button", &tpd_dts_data.use_tpd_button);
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pr_debug("[tpd]use-tpd-button = %d\n",
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tpd_dts_data.use_tpd_button);
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if (of_property_read_u32_array(node1, "tpd-resolution",
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tpd_dts_data.tpd_resolution,
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ARRAY_SIZE(tpd_dts_data.tpd_resolution))) {
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pr_debug("[tpd] resulution is %d %d",
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tpd_dts_data.tpd_resolution[0],
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tpd_dts_data.tpd_resolution[1]);
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}
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if (tpd_dts_data.use_tpd_button) {
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of_property_read_u32(node1,
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"tpd-key-num", &tpd_dts_data.tpd_key_num);
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if (of_property_read_u32_array(node1, "tpd-key-local",
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tpd_dts_data.tpd_key_local,
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ARRAY_SIZE(tpd_dts_data.tpd_key_local)))
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pr_debug("tpd-key-local: %d %d %d %d",
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tpd_dts_data.tpd_key_local[0],
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tpd_dts_data.tpd_key_local[1],
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tpd_dts_data.tpd_key_local[2],
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tpd_dts_data.tpd_key_local[3]);
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if (of_property_read_u32_array(node1,
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"tpd-key-dim-local",
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key_dim_local, ARRAY_SIZE(key_dim_local))) {
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memcpy(tpd_dts_data.tpd_key_dim_local,
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key_dim_local, sizeof(key_dim_local));
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for (i = 0; i < 4; i++) {
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pr_debug("[tpd]key[%d].key_x = %d\n", i,
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tpd_dts_data
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.tpd_key_dim_local[i]
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.key_x);
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pr_debug("[tpd]key[%d].key_y = %d\n", i,
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tpd_dts_data
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.tpd_key_dim_local[i]
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.key_y);
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pr_debug("[tpd]key[%d].key_W = %d\n", i,
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tpd_dts_data
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.tpd_key_dim_local[i]
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.key_width);
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pr_debug("[tpd]key[%d].key_H = %d\n", i,
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tpd_dts_data
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.tpd_key_dim_local[i]
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.key_height);
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}
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}
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}
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of_property_read_u32(node1, "tpd-filter-enable",
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&tpd_dts_data.touch_filter.enable);
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if (tpd_dts_data.touch_filter.enable) {
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of_property_read_u32(node1,
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"tpd-filter-pixel-density",
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&tpd_dts_data.touch_filter.pixel_density);
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if (of_property_read_u32_array(node1,
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"tpd-filter-custom-prameters",
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(u32 *)tpd_dts_data.touch_filter.W_W,
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ARRAY_SIZE(tpd_dts_data.touch_filter.W_W)))
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pr_debug("get tpd-filter-custom-parameters");
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if (of_property_read_u32_array(node1,
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"tpd-filter-custom-speed",
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tpd_dts_data.touch_filter.VECLOCITY_THRESHOLD,
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ARRAY_SIZE(tpd_dts_data
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.touch_filter
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.VECLOCITY_THRESHOLD)))
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pr_debug("get tpd-filter-custom-speed");
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}
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memcpy(&tpd_filter,
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&tpd_dts_data.touch_filter, sizeof(tpd_filter));
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pr_debug("[tpd]tpd-filter-enable = %d, pixel_density = %d\n",
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tpd_filter.enable, tpd_filter.pixel_density);
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tpd_dts_data.tpd_use_ext_gpio =
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of_property_read_bool(node1, "tpd-use-ext-gpio");
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of_property_read_u32(node1,
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"tpd-rst-ext-gpio-num",
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&tpd_dts_data.rst_ext_gpio_num);
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} else {
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TPD_DMESG("can't find touch compatible custom node\n");
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}
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}
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static DEFINE_MUTEX(tpd_set_gpio_mutex);
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void tpd_gpio_as_int(int pin)
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{
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mutex_lock(&tpd_set_gpio_mutex);
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TPD_DEBUG("[tpd]tpd gpio as int\n");
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if (pin == 1)
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pinctrl_select_state(pinctrl1, eint_as_int);
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mutex_unlock(&tpd_set_gpio_mutex);
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}
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void tpd_gpio_output(int pin, int level)
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{
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mutex_lock(&tpd_set_gpio_mutex);
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TPD_DEBUG("gpio_output pin = %d, level = %d\n", pin, level);
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if (pin == 1) {
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if (level)
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pinctrl_select_state(pinctrl1, eint_output1);
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else
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pinctrl_select_state(pinctrl1, eint_output0);
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} else {
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if (tpd_dts_data.tpd_use_ext_gpio) {
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#ifdef CONFIG_MTK_MT6306_GPIO_SUPPORT
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mt6306_set_gpio_dir(
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tpd_dts_data.rst_ext_gpio_num, 1);
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mt6306_set_gpio_out(
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tpd_dts_data.rst_ext_gpio_num, level);
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#endif
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} else {
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if (level)
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pinctrl_select_state(pinctrl1, rst_output1);
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else
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pinctrl_select_state(pinctrl1, rst_output0);
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}
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}
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mutex_unlock(&tpd_set_gpio_mutex);
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}
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int tpd_get_gpio_info(struct platform_device *pdev)
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{
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int ret;
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TPD_DEBUG("[tpd %d] mt_tpd_pinctrl+++++++++++++++++\n", pdev->id);
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pinctrl1 = devm_pinctrl_get(&pdev->dev);
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if (IS_ERR(pinctrl1)) {
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ret = PTR_ERR(pinctrl1);
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dev_info(&pdev->dev, "fwq Cannot find pinctrl1!\n");
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return ret;
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}
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pins_default = pinctrl_lookup_state(pinctrl1, "default");
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if (IS_ERR(pins_default)) {
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ret = PTR_ERR(pins_default);
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TPD_DMESG("Cannot find pinctrl default %d!\n", ret);
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}
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eint_as_int = pinctrl_lookup_state(pinctrl1, "state_eint_as_int");
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if (IS_ERR(eint_as_int)) {
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ret = PTR_ERR(eint_as_int);
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TPD_DMESG("Cannot find pinctrl state_eint_as_int!\n");
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return ret;
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}
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eint_output0 = pinctrl_lookup_state(pinctrl1, "state_eint_output0");
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if (IS_ERR(eint_output0)) {
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ret = PTR_ERR(eint_output0);
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TPD_DMESG("Cannot find pinctrl state_eint_output0!\n");
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return ret;
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}
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eint_output1 = pinctrl_lookup_state(pinctrl1, "state_eint_output1");
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if (IS_ERR(eint_output1)) {
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ret = PTR_ERR(eint_output1);
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TPD_DMESG("Cannot find pinctrl state_eint_output1!\n");
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return ret;
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}
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if (tpd_dts_data.tpd_use_ext_gpio == false) {
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rst_output0 =
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pinctrl_lookup_state(pinctrl1, "state_rst_output0");
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if (IS_ERR(rst_output0)) {
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ret = PTR_ERR(rst_output0);
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TPD_DMESG("Cannot find pinctrl state_rst_output0!\n");
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return ret;
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}
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rst_output1 =
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pinctrl_lookup_state(pinctrl1, "state_rst_output1");
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if (IS_ERR(rst_output1)) {
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ret = PTR_ERR(rst_output1);
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TPD_DMESG("Cannot find pinctrl state_rst_output1!\n");
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return ret;
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}
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}
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TPD_DEBUG("[tpd%d] mt_tpd_pinctrl----------\n", pdev->id);
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return 0;
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}
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static int tpd_misc_open(struct inode *inode, struct file *file)
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{
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return nonseekable_open(inode, file);
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}
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static int tpd_misc_release(struct inode *inode, struct file *file)
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{
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return 0;
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}
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#ifdef CONFIG_COMPAT
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static long tpd_compat_ioctl(
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struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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long ret;
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void __user *arg32 = compat_ptr(arg);
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if (!file->f_op || !file->f_op->unlocked_ioctl)
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return -ENOTTY;
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switch (cmd) {
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case COMPAT_TPD_GET_FILTER_PARA:
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if (arg32 == NULL) {
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pr_info("invalid argument.");
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return -EINVAL;
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}
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ret = file->f_op->unlocked_ioctl(file, TPD_GET_FILTER_PARA,
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(unsigned long)arg32);
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if (ret) {
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pr_info("TPD_GET_FILTER_PARA unlocked_ioctl failed.");
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return ret;
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}
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break;
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default:
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pr_info("tpd: unknown IOCTL: 0x%08x\n", cmd);
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ret = -ENOIOCTLCMD;
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break;
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}
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return ret;
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}
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#endif
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static long tpd_unlocked_ioctl(struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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/* char strbuf[256]; */
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void __user *data;
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long err = 0;
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if (_IOC_DIR(cmd) & _IOC_READ)
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err = !access_ok(VERIFY_WRITE,
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(void __user *)arg, _IOC_SIZE(cmd));
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else if (_IOC_DIR(cmd) & _IOC_WRITE)
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err = !access_ok(VERIFY_READ,
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(void __user *)arg, _IOC_SIZE(cmd));
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if (err) {
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pr_info("tpd: access error: %08X, (%2d, %2d)\n",
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cmd, _IOC_DIR(cmd), _IOC_SIZE(cmd));
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return -EFAULT;
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}
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switch (cmd) {
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case TPD_GET_VELOCITY_CUSTOM_X:
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data = (void __user *)arg;
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if (data == NULL) {
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err = -EINVAL;
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break;
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}
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if (copy_to_user(data,
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&tpd_v_magnify_x, sizeof(tpd_v_magnify_x))) {
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err = -EFAULT;
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break;
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}
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break;
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case TPD_GET_VELOCITY_CUSTOM_Y:
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data = (void __user *)arg;
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if (data == NULL) {
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err = -EINVAL;
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break;
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}
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if (copy_to_user(data,
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&tpd_v_magnify_y, sizeof(tpd_v_magnify_y))) {
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err = -EFAULT;
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break;
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}
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break;
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case TPD_GET_FILTER_PARA:
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data = (void __user *) arg;
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if (data == NULL) {
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err = -EINVAL;
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TPD_DMESG("GET_FILTER_PARA: data is null\n");
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break;
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}
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if (copy_to_user(data, &tpd_filter,
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sizeof(struct tpd_filter_t))) {
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TPD_DMESG("GET_FILTER_PARA: copy data error\n");
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err = -EFAULT;
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break;
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}
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break;
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default:
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pr_info("tpd: unknown IOCTL: 0x%08x\n", cmd);
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err = -ENOIOCTLCMD;
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break;
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}
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return err;
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}
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static struct work_struct touch_resume_work;
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static struct workqueue_struct *touch_resume_workqueue;
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static const struct file_operations tpd_fops = {
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/* .owner = THIS_MODULE, */
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.open = tpd_misc_open,
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.release = tpd_misc_release,
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.unlocked_ioctl = tpd_unlocked_ioctl,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = tpd_compat_ioctl,
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#endif
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};
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/*---------------------------------------------------------------------------*/
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static struct miscdevice tpd_misc_device = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "touch",
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.fops = &tpd_fops,
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};
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/* ********************************************** */
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/* #endif */
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/* function definitions */
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static int __init tpd_device_init(void);
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static void __exit tpd_device_exit(void);
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static int tpd_probe(struct platform_device *pdev);
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static int tpd_remove(struct platform_device *pdev);
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static struct work_struct tpd_init_work;
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static struct workqueue_struct *tpd_init_workqueue;
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static int tpd_suspend_flag;
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int tpd_register_flag;
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/* global variable definitions */
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struct tpd_device *tpd;
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static struct tpd_driver_t tpd_driver_list[TP_DRV_MAX_COUNT]; /* = {0}; */
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struct platform_device tpd_device = {
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.name = TPD_DEVICE,
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.id = -1,
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};
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const struct dev_pm_ops tpd_pm_ops = {
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.suspend = NULL,
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.resume = NULL,
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};
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static struct platform_driver tpd_driver = {
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.remove = tpd_remove,
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.shutdown = NULL,
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.probe = tpd_probe,
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.driver = {
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.name = TPD_DEVICE,
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.pm = &tpd_pm_ops,
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.owner = THIS_MODULE,
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.of_match_table = touch_of_match,
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},
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};
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static struct tpd_driver_t *g_tpd_drv;
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/* hh: use fb_notifier */
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static struct notifier_block tpd_fb_notifier;
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/* use fb_notifier */
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static void touch_resume_workqueue_callback(struct work_struct *work)
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{
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TPD_DEBUG("GTP touch_resume_callback\n");
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g_tpd_drv->resume(NULL);
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tpd_suspend_flag = 0;
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}
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static int tpd_fb_notifier_callback(
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struct notifier_block *self,
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unsigned long event, void *data)
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{
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struct fb_event *evdata = NULL;
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int blank;
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int err = 0;
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TPD_DEBUG("fb_notifier_callback\n");
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evdata = data;
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/* If we aren't interested in this event, skip it immediately ... */
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if (event != FB_EVENT_BLANK)
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return 0;
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blank = *(int *)evdata->data;
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TPD_DMESG("fb_notify(blank=%d)\n", blank);
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switch (blank) {
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case FB_BLANK_UNBLANK:
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TPD_DMESG("LCD ON Notify\n");
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if (g_tpd_drv && tpd_suspend_flag) {
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err = queue_work(touch_resume_workqueue,
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&touch_resume_work);
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if (!err) {
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TPD_DMESG("start resume_workqueue failed\n");
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return err;
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}
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}
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break;
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case FB_BLANK_POWERDOWN:
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TPD_DMESG("LCD OFF Notify\n");
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if (g_tpd_drv && !tpd_suspend_flag) {
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err = cancel_work_sync(&touch_resume_work);
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if (!err)
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TPD_DMESG("cancel resume_workqueue failed\n");
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g_tpd_drv->suspend(NULL);
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}
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tpd_suspend_flag = 1;
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break;
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default:
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break;
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}
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return 0;
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}
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/* Add driver: if find TPD_TYPE_CAPACITIVE driver successfully, loading it */
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int tpd_driver_add(struct tpd_driver_t *tpd_drv)
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{
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int i;
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if (g_tpd_drv != NULL) {
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TPD_DMESG("touch driver exist\n");
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return -1;
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}
|
|
/* check parameter */
|
|
if (tpd_drv == NULL)
|
|
return -1;
|
|
tpd_drv->tpd_have_button = tpd_dts_data.use_tpd_button;
|
|
/* R-touch */
|
|
if (strcmp(tpd_drv->tpd_device_name, "generic") == 0) {
|
|
tpd_driver_list[0].tpd_device_name = tpd_drv->tpd_device_name;
|
|
tpd_driver_list[0].tpd_local_init = tpd_drv->tpd_local_init;
|
|
tpd_driver_list[0].suspend = tpd_drv->suspend;
|
|
tpd_driver_list[0].resume = tpd_drv->resume;
|
|
tpd_driver_list[0].tpd_have_button = tpd_drv->tpd_have_button;
|
|
return 0;
|
|
}
|
|
for (i = 1; i < TP_DRV_MAX_COUNT; i++) {
|
|
/* add tpd driver into list */
|
|
if (tpd_driver_list[i].tpd_device_name == NULL) {
|
|
tpd_driver_list[i].tpd_device_name =
|
|
tpd_drv->tpd_device_name;
|
|
tpd_driver_list[i].tpd_local_init =
|
|
tpd_drv->tpd_local_init;
|
|
tpd_driver_list[i].suspend = tpd_drv->suspend;
|
|
tpd_driver_list[i].resume = tpd_drv->resume;
|
|
tpd_driver_list[i].tpd_have_button =
|
|
tpd_drv->tpd_have_button;
|
|
tpd_driver_list[i].attrs = tpd_drv->attrs;
|
|
break;
|
|
}
|
|
if (strcmp(tpd_driver_list[i].tpd_device_name,
|
|
tpd_drv->tpd_device_name) == 0)
|
|
return 1; /* driver exist */
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int tpd_driver_remove(struct tpd_driver_t *tpd_drv)
|
|
{
|
|
int i = 0;
|
|
/* check parameter */
|
|
if (tpd_drv == NULL)
|
|
return -1;
|
|
for (i = 0; i < TP_DRV_MAX_COUNT; i++) {
|
|
/* find it */
|
|
if (strcmp(tpd_driver_list[i].tpd_device_name,
|
|
tpd_drv->tpd_device_name) == 0) {
|
|
memset(&tpd_driver_list[i], 0,
|
|
sizeof(struct tpd_driver_t));
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void tpd_create_attributes(struct device *dev, struct tpd_attrs *attrs)
|
|
{
|
|
int num = attrs->num;
|
|
|
|
for (; num > 0;) {
|
|
if (device_create_file(dev, attrs->attr[--num]))
|
|
pr_info("mtk_tpd: tpd create attributes file failed\n");
|
|
}
|
|
}
|
|
|
|
/* touch panel probe */
|
|
static int tpd_probe(struct platform_device *pdev)
|
|
{
|
|
int touch_type = 1; /* 0:R-touch, 1: Cap-touch */
|
|
int i = 0;
|
|
#ifndef CONFIG_CUSTOM_LCM_X
|
|
#ifdef CONFIG_LCM_WIDTH
|
|
unsigned long tpd_res_x = 0, tpd_res_y = 0;
|
|
int ret = 0;
|
|
#endif
|
|
#endif
|
|
|
|
TPD_DMESG("enter %s, %d\n", __func__, __LINE__);
|
|
|
|
if (misc_register(&tpd_misc_device))
|
|
pr_info("mtk_tpd: tpd_misc_device register failed\n");
|
|
tpd_get_gpio_info(pdev);
|
|
tpd = kmalloc(sizeof(struct tpd_device), GFP_KERNEL);
|
|
if (tpd == NULL)
|
|
return -ENOMEM;
|
|
memset(tpd, 0, sizeof(struct tpd_device));
|
|
|
|
/* allocate input device */
|
|
tpd->dev = input_allocate_device();
|
|
if (tpd->dev == NULL) {
|
|
kfree(tpd);
|
|
return -ENOMEM;
|
|
}
|
|
/* TPD_RES_X = simple_strtoul(LCM_WIDTH, NULL, 0); */
|
|
/* TPD_RES_Y = simple_strtoul(LCM_HEIGHT, NULL, 0); */
|
|
|
|
#ifdef CONFIG_MTK_LCM_PHYSICAL_ROTATION
|
|
if (strncmp(CONFIG_MTK_LCM_PHYSICAL_ROTATION, "90", 2) == 0
|
|
|| strncmp(CONFIG_MTK_LCM_PHYSICAL_ROTATION, "270", 3) == 0) {
|
|
#ifdef CONFIG_MTK_FB
|
|
/*Fix build errors,as some projects cannot support these apis while bring up*/
|
|
TPD_RES_Y = DISP_GetScreenWidth();
|
|
TPD_RES_X = DISP_GetScreenHeight();
|
|
#endif
|
|
} else
|
|
#endif
|
|
{
|
|
#ifdef CONFIG_CUSTOM_LCM_X
|
|
#ifndef CONFIG_FPGA_EARLY_PORTING
|
|
#if defined(CONFIG_MTK_FB) && defined(CONFIG_MTK_LCM)
|
|
/*Fix build errors,as some projects cannot support these apis while bring up*/
|
|
TPD_RES_X = DISP_GetScreenWidth();
|
|
TPD_RES_Y = DISP_GetScreenHeight();
|
|
#else
|
|
/*for some projects, we do not use mtk framebuffer*/
|
|
TPD_RES_X = tpd_dts_data.tpd_resolution[0];
|
|
TPD_RES_Y = tpd_dts_data.tpd_resolution[1];
|
|
#endif
|
|
#endif
|
|
#else
|
|
#ifdef CONFIG_LCM_WIDTH
|
|
ret = kstrtoul(CONFIG_LCM_WIDTH, 0, &tpd_res_x);
|
|
if (ret < 0) {
|
|
pr_info("Touch down get lcm_x failed");
|
|
return ret;
|
|
}
|
|
TPD_RES_X = tpd_res_x;
|
|
ret = kstrtoul(CONFIG_LCM_HEIGHT, 0, &tpd_res_x);
|
|
if (ret < 0) {
|
|
pr_info("Touch down get lcm_y failed");
|
|
return ret;
|
|
}
|
|
TPD_RES_Y = tpd_res_y;
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
if (2560 == TPD_RES_X)
|
|
TPD_RES_X = 2048;
|
|
if (1600 == TPD_RES_Y)
|
|
TPD_RES_Y = 1536;
|
|
pr_debug("mtk_tpd: TPD_RES_X = %lu, TPD_RES_Y = %lu\n",
|
|
TPD_RES_X, TPD_RES_Y);
|
|
|
|
tpd_mode = TPD_MODE_NORMAL;
|
|
tpd_mode_axis = 0;
|
|
tpd_mode_min = TPD_RES_Y / 2;
|
|
tpd_mode_max = TPD_RES_Y;
|
|
tpd_mode_keypad_tolerance = TPD_RES_X * TPD_RES_X / 1600;
|
|
/* struct input_dev dev initialization and registration */
|
|
tpd->dev->name = TPD_DEVICE;
|
|
set_bit(EV_ABS, tpd->dev->evbit);
|
|
set_bit(EV_KEY, tpd->dev->evbit);
|
|
set_bit(ABS_X, tpd->dev->absbit);
|
|
set_bit(ABS_Y, tpd->dev->absbit);
|
|
set_bit(ABS_PRESSURE, tpd->dev->absbit);
|
|
#if !defined(CONFIG_MTK_S3320) && !defined(CONFIG_MTK_S3320_47)\
|
|
&& !defined(CONFIG_MTK_S3320_50) && !defined(CONFIG_MTK_MIT200) \
|
|
&& !defined(CONFIG_TOUCHSCREEN_SYNAPTICS_S3528) \
|
|
&& !defined(CONFIG_MTK_S7020) \
|
|
&& !defined(CONFIG_TOUCHSCREEN_MTK_SYNAPTICS_3320_50)
|
|
set_bit(BTN_TOUCH, tpd->dev->keybit);
|
|
#endif /* CONFIG_MTK_S3320 */
|
|
set_bit(INPUT_PROP_DIRECT, tpd->dev->propbit);
|
|
|
|
/* save dev for regulator_get() before tpd_local_init() */
|
|
tpd->tpd_dev = &pdev->dev;
|
|
for (i = 1; i < TP_DRV_MAX_COUNT; i++) {
|
|
/* add tpd driver into list */
|
|
if (tpd_driver_list[i].tpd_device_name != NULL) {
|
|
tpd_driver_list[i].tpd_local_init();
|
|
/* msleep(1); */
|
|
if (tpd_load_status == 1) {
|
|
TPD_DMESG("probe, tpd_driver_name=%s\n",
|
|
tpd_driver_list[i].tpd_device_name);
|
|
g_tpd_drv = &tpd_driver_list[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (g_tpd_drv == NULL) {
|
|
if (tpd_driver_list[0].tpd_device_name != NULL) {
|
|
g_tpd_drv = &tpd_driver_list[0];
|
|
/* touch_type:0: r-touch, 1: C-touch */
|
|
touch_type = 0;
|
|
g_tpd_drv->tpd_local_init();
|
|
TPD_DMESG("Generic touch panel driver\n");
|
|
} else {
|
|
TPD_DMESG("no touch driver is loaded!!\n");
|
|
return 0;
|
|
}
|
|
}
|
|
touch_resume_workqueue = create_singlethread_workqueue("touch_resume");
|
|
INIT_WORK(&touch_resume_work, touch_resume_workqueue_callback);
|
|
/* use fb_notifier */
|
|
tpd_fb_notifier.notifier_call = tpd_fb_notifier_callback;
|
|
if (fb_register_client(&tpd_fb_notifier))
|
|
TPD_DMESG("register fb_notifier fail!\n");
|
|
/* TPD_TYPE_CAPACITIVE handle */
|
|
if (touch_type == 1) {
|
|
|
|
set_bit(ABS_MT_TRACKING_ID, tpd->dev->absbit);
|
|
set_bit(ABS_MT_TOUCH_MAJOR, tpd->dev->absbit);
|
|
set_bit(ABS_MT_TOUCH_MINOR, tpd->dev->absbit);
|
|
set_bit(ABS_MT_POSITION_X, tpd->dev->absbit);
|
|
set_bit(ABS_MT_POSITION_Y, tpd->dev->absbit);
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_POSITION_X, 0, TPD_RES_X, 0, 0);
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_POSITION_Y, 0, TPD_RES_Y, 0, 0);
|
|
#if defined(CONFIG_MTK_S3320) || defined(CONFIG_MTK_S3320_47) \
|
|
|| defined(CONFIG_MTK_S3320_50) || defined(CONFIG_MTK_MIT200) \
|
|
|| defined(CONFIG_TOUCHSCREEN_SYNAPTICS_S3528) \
|
|
|| defined(CONFIG_MTK_S7020) \
|
|
|| defined(CONFIG_TOUCHSCREEN_MTK_SYNAPTICS_3320_50)
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_PRESSURE, 0, 255, 0, 0);
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_WIDTH_MAJOR, 0, 15, 0, 0);
|
|
input_set_abs_params(tpd->dev, ABS_MT_WIDTH_MINOR, 0, 15, 0, 0);
|
|
input_mt_init_slots(tpd->dev, 10, 0);
|
|
#else
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_TOUCH_MAJOR, 0, 100, 0, 0);
|
|
input_set_abs_params(tpd->dev,
|
|
ABS_MT_TOUCH_MINOR, 0, 100, 0, 0);
|
|
#endif /* CONFIG_MTK_S3320 */
|
|
TPD_DMESG("Cap touch panel driver\n");
|
|
}
|
|
input_set_abs_params(tpd->dev, ABS_X, 0, TPD_RES_X, 0, 0);
|
|
input_set_abs_params(tpd->dev, ABS_Y, 0, TPD_RES_Y, 0, 0);
|
|
input_abs_set_res(tpd->dev, ABS_X, TPD_RES_X);
|
|
input_abs_set_res(tpd->dev, ABS_Y, TPD_RES_Y);
|
|
input_set_abs_params(tpd->dev, ABS_PRESSURE, 0, 255, 0, 0);
|
|
input_set_abs_params(tpd->dev, ABS_MT_TRACKING_ID, 0, 10, 0, 0);
|
|
|
|
if (input_register_device(tpd->dev))
|
|
TPD_DMESG("input_register_device failed.(tpd)\n");
|
|
else
|
|
tpd_register_flag = 1;
|
|
if (g_tpd_drv->tpd_have_button)
|
|
tpd_button_init();
|
|
|
|
if (g_tpd_drv->attrs.num)
|
|
tpd_create_attributes(&pdev->dev, &g_tpd_drv->attrs);
|
|
|
|
return 0;
|
|
}
|
|
static int tpd_remove(struct platform_device *pdev)
|
|
{
|
|
input_unregister_device(tpd->dev);
|
|
return 0;
|
|
}
|
|
|
|
/* called when loaded into kernel */
|
|
static void tpd_init_work_callback(struct work_struct *work)
|
|
{
|
|
TPD_DEBUG("MediaTek touch panel driver init\n");
|
|
if (platform_driver_register(&tpd_driver) != 0)
|
|
TPD_DMESG("unable to register touch panel driver.\n");
|
|
}
|
|
static int __init tpd_device_init(void)
|
|
{
|
|
int res = 0;
|
|
|
|
tpd_init_workqueue = create_singlethread_workqueue("mtk-tpd");
|
|
INIT_WORK(&tpd_init_work, tpd_init_work_callback);
|
|
|
|
res = queue_work(tpd_init_workqueue, &tpd_init_work);
|
|
if (!res)
|
|
pr_info("tpd : touch device init failed res:%d\n", res);
|
|
return 0;
|
|
}
|
|
/* should never be called */
|
|
static void __exit tpd_device_exit(void)
|
|
{
|
|
TPD_DMESG("MediaTek touch panel driver exit\n");
|
|
/* input_unregister_device(tpd->dev); */
|
|
platform_driver_unregister(&tpd_driver);
|
|
}
|
|
|
|
late_initcall(tpd_device_init);
|
|
module_exit(tpd_device_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("MediaTek touch panel driver");
|
|
MODULE_AUTHOR("Kirby Wu<kirby.wu@mediatek.com>");
|