1280 lines
29 KiB
C
1280 lines
29 KiB
C
/* 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 "include/gt1x_tpd_common.h"
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#if TPD_SUPPORT_I2C_DMA
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#include <linux/dma-mapping.h>
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#endif
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#ifdef CONFIG_GTP_ICS_SLOT_REPORT
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#include <linux/input/mt.h>
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#endif
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#include <linux/regulator/consumer.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/suspend.h>
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/*1 enable,0 disable,touch_panel_eint default status,
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* need to confirm after register eint
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*/
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int irq_flag = 1;
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static spinlock_t irq_flag_lock;
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/*0 power off,default, 1 power on*/
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static int power_flag;
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static int tpd_flag;
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static int tpd_pm_flag;
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static int tpd_tui_flag;
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static int tpd_tui_low_power_skipped;
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DEFINE_MUTEX(tui_lock);
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int tpd_halt;
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static int tpd_eint_mode = 1;
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static struct task_struct *thread;
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static struct task_struct *update_thread;
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static struct task_struct *probe_thread;
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static struct notifier_block pm_notifier_block;
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static int tpd_polling_time = 50;
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static DECLARE_WAIT_QUEUE_HEAD(waiter);
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static DECLARE_WAIT_QUEUE_HEAD(pm_waiter);
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static bool gtp_suspend;
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DECLARE_WAIT_QUEUE_HEAD(init_waiter);
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DEFINE_MUTEX(i2c_access);
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unsigned int touch_irq;
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u8 int_type;
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#if (defined(TPD_WARP_START) && defined(TPD_WARP_END))
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static int tpd_wb_start_local[TPD_WARP_CNT] = TPD_WARP_START;
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static int tpd_wb_end_local[TPD_WARP_CNT] = TPD_WARP_END;
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#endif
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#if (defined(TPD_HAVE_CALIBRATION) && !defined(TPD_CUSTOM_CALIBRATION))
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static int tpd_def_calmat_local[8] = TPD_CALIBRATION_MATRIX;
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#endif
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static int tpd_event_handler(void *unused);
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static int tpd_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id);
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static int tpd_i2c_detect(struct i2c_client *client,
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struct i2c_board_info *info);
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static int tpd_i2c_remove(struct i2c_client *client);
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static irqreturn_t tpd_eint_interrupt_handler(unsigned int irq,
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struct irq_desc *desc);
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#define GTP_DRIVER_NAME "gt1x"
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static const struct i2c_device_id tpd_i2c_id[] = { {GTP_DRIVER_NAME, 0}, {} };
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static unsigned short force[] = {
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0, GTP_I2C_ADDRESS, I2C_CLIENT_END, I2C_CLIENT_END };
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static const unsigned short *const forces[] = { force, NULL };
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static const struct of_device_id tpd_of_match[] = {
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{.compatible = "mediatek,cap_touch"},
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{},
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};
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static struct i2c_driver tpd_i2c_driver = {
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.probe = tpd_i2c_probe,
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.remove = tpd_i2c_remove,
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.detect = tpd_i2c_detect,
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.driver.name = GTP_DRIVER_NAME,
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.driver = {
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.name = GTP_DRIVER_NAME,
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.of_match_table = tpd_of_match,
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},
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.id_table = tpd_i2c_id,
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.address_list = (const unsigned short *)forces,
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};
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#if TPD_SUPPORT_I2C_DMA
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static u8 *gpDMABuf_va;
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static dma_addr_t gpDMABuf_pa;
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struct mutex dma_mutex;
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DEFINE_MUTEX(dma_mutex);
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static s32 i2c_dma_write_mtk(u16 addr, u8 *buffer, s32 len)
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{
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s32 ret = 0;
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s32 pos = 0;
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s32 transfer_length;
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u16 address = addr;
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struct i2c_msg msg = {
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.flags = !I2C_M_RD,
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.ext_flag = (gt1x_i2c_client->ext_flag |
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I2C_ENEXT_FLAG | I2C_DMA_FLAG),
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.addr = (gt1x_i2c_client->addr & I2C_MASK_FLAG),
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.timing = I2C_MASTER_CLOCK,
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.buf = (u8 *)(uintptr_t)gpDMABuf_pa,
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};
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mutex_lock(&dma_mutex);
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while (pos != len) {
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if (len - pos > (IIC_DMA_MAX_TRANSFER_SIZE - GTP_ADDR_LENGTH))
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transfer_length =
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IIC_DMA_MAX_TRANSFER_SIZE - GTP_ADDR_LENGTH;
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else
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transfer_length = len - pos;
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gpDMABuf_va[0] = (address >> 8) & 0xFF;
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gpDMABuf_va[1] = address & 0xFF;
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memcpy(&gpDMABuf_va[GTP_ADDR_LENGTH], &buffer[pos],
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transfer_length);
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msg.len = transfer_length + GTP_ADDR_LENGTH;
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if (!gtp_suspend) {/*workround log too much*/
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ret = i2c_transfer(gt1x_i2c_client->adapter, &msg, 1);
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if (ret != 1) {
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GTP_INFO("I2c Transfer error! (%d)", ret);
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ret = ERROR_IIC;
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break;
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}
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} else {
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ret = ERROR_IIC;
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break;
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}
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ret = 0;
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pos += transfer_length;
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address += transfer_length;
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}
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mutex_unlock(&dma_mutex);
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return ret;
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}
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static s32 i2c_dma_read_mtk(u16 addr, u8 *buffer, s32 len)
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{
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s32 ret = ERROR;
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s32 pos = 0;
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s32 transfer_length;
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u16 address = addr;
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u8 addr_buf[GTP_ADDR_LENGTH] = { 0 };
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struct i2c_msg msgs[2] = {
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{
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.flags = 0, /*!I2C_M_RD,*/
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.addr = (gt1x_i2c_client->addr & I2C_MASK_FLAG),
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.timing = I2C_MASTER_CLOCK,
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.len = GTP_ADDR_LENGTH,
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.buf = addr_buf,
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},
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{
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.flags = I2C_M_RD,
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.ext_flag = (gt1x_i2c_client->ext_flag |
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I2C_ENEXT_FLAG | I2C_DMA_FLAG),
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.addr = (gt1x_i2c_client->addr & I2C_MASK_FLAG),
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.timing = I2C_MASTER_CLOCK,
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.buf = (u8 *)(uintptr_t)gpDMABuf_pa,
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},
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};
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mutex_lock(&dma_mutex);
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while (pos != len) {
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if (len - pos > IIC_DMA_MAX_TRANSFER_SIZE)
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transfer_length = IIC_DMA_MAX_TRANSFER_SIZE;
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else
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transfer_length = len - pos;
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msgs[0].buf[0] = (address >> 8) & 0xFF;
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msgs[0].buf[1] = address & 0xFF;
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msgs[1].len = transfer_length;
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ret = i2c_transfer(gt1x_i2c_client->adapter, msgs, 2);
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if (ret != 2) {
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GTP_ERROR("I2C Transfer error! (%d)", ret);
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ret = ERROR_IIC;
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break;
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}
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ret = 0;
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memcpy(&buffer[pos], gpDMABuf_va, transfer_length);
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pos += transfer_length;
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address += transfer_length;
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};
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mutex_unlock(&dma_mutex);
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return ret;
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}
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#else
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static s32 i2c_write_mtk(u16 addr, u8 *buffer, s32 len)
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{
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s32 ret;
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struct i2c_msg msg = {
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.flags = 0,
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#ifdef CONFIG_MTK_I2C_EXTENSION
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.addr = (gt1x_i2c_client->addr & I2C_MASK_FLAG) |
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(I2C_ENEXT_FLAG),
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.timing = I2C_MASTER_CLOCK,
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#else
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.addr = gt1x_i2c_client->addr,
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#endif
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};
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ret = _do_i2c_write(&msg, addr, buffer, len);
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return ret;
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}
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static s32 i2c_read_mtk(u16 addr, u8 *buffer, s32 len)
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{
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int ret;
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u8 addr_buf[GTP_ADDR_LENGTH] = { (addr >> 8) & 0xFF, addr & 0xFF };
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struct i2c_msg msgs[2] = {
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{
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#ifdef CONFIG_MTK_I2C_EXTENSION
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.addr = ((gt1x_i2c_client->addr & I2C_MASK_FLAG) |
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(I2C_ENEXT_FLAG)),
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.timing = I2C_MASTER_CLOCK,
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#else
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.addr = gt1x_i2c_client->addr,
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#endif
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.flags = 0,
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.buf = addr_buf,
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.len = GTP_ADDR_LENGTH,
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},
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{
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#ifdef CONFIG_MTK_I2C_EXTENSION
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.addr = ((gt1x_i2c_client->addr & I2C_MASK_FLAG) |
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(I2C_ENEXT_FLAG)),
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.timing = I2C_MASTER_CLOCK,
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#else
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.addr = gt1x_i2c_client->addr,
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#endif
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.flags = I2C_M_RD,
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},
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};
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ret = _do_i2c_read(msgs, addr, buffer, len);
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return ret;
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}
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#endif/* TPD_SUPPORT_I2C_DMA */
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/**
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* @return: return 0 if success, otherwise return a negative number
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* which contains the error code.
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*/
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s32 gt1x_i2c_read(u16 addr, u8 *buffer, s32 len)
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{
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#if TPD_SUPPORT_I2C_DMA
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return i2c_dma_read_mtk(addr, buffer, len);
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#else
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return i2c_read_mtk(addr, buffer, len);
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#endif
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}
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/**
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* @return: return 0 if success, otherwise return a negative number
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* which contains the error code.
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*/
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s32 gt1x_i2c_write(u16 addr, u8 *buffer, s32 len)
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{
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#if TPD_SUPPORT_I2C_DMA
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return i2c_dma_write_mtk(addr, buffer, len);
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#else
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return i2c_write_mtk(addr, buffer, len);
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#endif
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}
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#ifdef TPD_REFRESH_RATE
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/*******************************************************
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* Function:
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* Write refresh rate
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*
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* Input:
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* rate: refresh rate N (Duration=5+N ms, N=0~15)
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*
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* Output:
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* Executive outcomes.0---succeed.
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*******************************************************/
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static u8 gt1x_set_refresh_rate(u8 rate)
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{
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u8 buf[1] = { rate };
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if (rate > 0xf) {
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GTP_ERROR("Refresh rate is over range (%d)", rate);
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return ERROR_VALUE;
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}
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GTP_INFO("Refresh rate change to %d", rate);
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return gt1x_i2c_write(GTP_REG_REFRESH_RATE, buf, sizeof(buf));
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}
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/*******************************************************
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* Function:
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* Get refresh rate
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*
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* Output:
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* Refresh rate or error code
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*******************************************************/
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static u8 gt1x_get_refresh_rate(void)
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{
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int ret;
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u8 buf[1] = { 0x00 };
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ret = gt1x_i2c_read(GTP_REG_REFRESH_RATE, buf, sizeof(buf));
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if (ret < 0)
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return ret;
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GTP_INFO("Refresh rate is %d", buf[0]);
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return buf[0];
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}
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/*=============================================================*/
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static ssize_t show_refresh_rate(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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int ret = gt1x_get_refresh_rate();
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if (ret < 0)
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return 0;
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else
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return sprintf(buf, "%d\n", ret);
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}
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static ssize_t store_refresh_rate(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t size)
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{
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unsigned long rate;
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int ret;
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ret = kstrtoul(buf, 0, &rate);
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gt1x_set_refresh_rate(rate);
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return size;
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}
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static DEVICE_ATTR(tpd_refresh_rate, 0664,
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show_refresh_rate, store_refresh_rate);
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static struct device_attribute *gt9xx_attrs[] = {
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&dev_attr_tpd_refresh_rate,
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};
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#endif
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/*=============================================================*/
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static int tpd_i2c_detect(struct i2c_client *client,
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struct i2c_board_info *info)
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{
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strncpy(info->type, "mtk-tpd", sizeof(info->type));
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return 0;
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}
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static int tpd_power_on(void)
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{
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gt1x_power_switch(SWITCH_ON);
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gt1x_select_addr();
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msleep(20);
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if (gt1x_get_chip_type() != 0)
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return -1;
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if (gt1x_reset_guitar() != 0)
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return -1;
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return 0;
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}
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void gt1x_irq_enable(void)
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{
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unsigned long flags;
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spin_lock_irqsave(&irq_flag_lock, flags);
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if (irq_flag == 0) {
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irq_flag = 1;
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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enable_irq(touch_irq);
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GTP_DEBUG("%s, irq_flag=%d", __func__, irq_flag);
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} else if (irq_flag == 1) {
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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GTP_INFO("Touch Eint already enabled!");
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} else {
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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GTP_ERROR("Invalid irq_flag %d!", irq_flag);
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}
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/*GTP_INFO("Enable irq_flag=%d",irq_flag);*/
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}
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void gt1x_irq_disable(void)
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{
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unsigned long flags;
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spin_lock_irqsave(&irq_flag_lock, flags);
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if (irq_flag == 1) {
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irq_flag = 0;
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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disable_irq(touch_irq);
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GTP_DEBUG("%s, irq_flag=%d", __func__, irq_flag);
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} else if (irq_flag == 0) {
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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GTP_INFO("Touch Eint already disabled!");
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} else {
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spin_unlock_irqrestore(&irq_flag_lock, flags);
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GTP_ERROR("Invalid irq_flag %d!", irq_flag);
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}
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/*GTP_INFO("Disable irq_flag=%d",irq_flag);*/
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}
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void gt1x_power_switch(s32 state)
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{
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#if !defined(CONFIG_MTK_LEGACY) || defined(CONFIG_ARCH_MT6580)
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int ret = 0;
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#endif
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GTP_GPIO_OUTPUT(GTP_RST_PORT, 0);
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GTP_GPIO_OUTPUT(GTP_INT_PORT, 0);
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msleep(20);
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switch (state) {
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case SWITCH_ON:
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if (power_flag == 0) {
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GTP_DEBUG("Power switch on!");
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#if !defined(CONFIG_MTK_LEGACY)
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/*enable regulator*/
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ret = regulator_enable(tpd->reg);
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if (ret)
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GTP_ERROR("regulator_enable() failed!\n");
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#else
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#ifdef TPD_POWER_SOURCE_CUSTOM
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#ifdef CONFIG_ARCH_MT6580
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/*set 2.8v*/
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ret = regulator_set_voltage(tpd->reg,
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2800000, 2800000);
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if (ret)
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GTP_DEBUG("regulator_set_voltage() failed!\n");
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/*enable regulator*/
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ret = regulator_enable(tpd->reg);
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if (ret)
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GTP_DEBUG("regulator_enable() failed!\n");
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#else
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hwPowerOn(TPD_POWER_SOURCE_CUSTOM, VOL_2800, "TP");
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#endif
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#endif
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#endif
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power_flag = 1;
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} else {
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/*GTP_DEBUG("Power already is on!");*/
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}
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break;
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case SWITCH_OFF:
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if (power_flag == 1) {
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GTP_DEBUG("Power switch off!");
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#if !defined(CONFIG_MTK_LEGACY)
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/*disable regulator*/
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ret = regulator_disable(tpd->reg);
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if (ret)
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GTP_ERROR("regulator_disable() failed!\n");
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#else
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#ifdef TPD_POWER_SOURCE_CUSTOM
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#ifdef CONFIG_ARCH_MT6580
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/*disable regulator*/
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ret = regulator_disable(tpd->reg);
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if (ret)
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GTP_DEBUG("regulator_disable() failed!\n");
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#else
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hwPowerDown(TPD_POWER_SOURCE_CUSTOM, "TP");
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#endif
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#endif
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#endif
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power_flag = 0;
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} else {
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/*GTP_DEBUG("Power already is off!");*/
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}
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break;
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default:
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GTP_ERROR("Invalid power switch command!");
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break;
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}
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}
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int gt1x_is_tpd_halt(void)
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{
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return tpd_halt;
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}
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static int tpd_irq_registration(void)
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{
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struct device_node *node = NULL;
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int ret = 0;
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u32 ints[2] = { 0, 0 };
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GTP_INFO("Device Tree Tpd_irq_registration!");
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node = of_find_matching_node(node, touch_of_match);
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if (node) {
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if (of_property_read_u32_array(node, "debounce",
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ints, ARRAY_SIZE(ints)) == 0) {
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|
GTP_INFO("debounce:%d-%d\n", ints[0], ints[1]);
|
|
gpio_set_debounce(ints[0], ints[1]);
|
|
} else {
|
|
GTP_INFO("debounce time not found\n");
|
|
}
|
|
|
|
touch_irq = irq_of_parse_and_map(node, 0);
|
|
GTP_INFO("Device gt1x_int_type = %d!", gt1x_int_type);
|
|
if (!gt1x_int_type) {/*EINTF_TRIGGER*/
|
|
ret = request_irq(touch_irq,
|
|
(irq_handler_t) tpd_eint_interrupt_handler,
|
|
IRQF_TRIGGER_RISING,
|
|
"TOUCH_PANEL-eint", NULL);
|
|
if (ret > 0) {
|
|
ret = -1;
|
|
GTP_ERROR("request_irq IRQ NOT AVAILABLE!.");
|
|
}
|
|
} else {
|
|
ret = request_irq(touch_irq,
|
|
(irq_handler_t) tpd_eint_interrupt_handler,
|
|
IRQF_TRIGGER_FALLING,
|
|
"TOUCH_PANEL-eint", NULL);
|
|
if (ret > 0) {
|
|
ret = -1;
|
|
GTP_ERROR("request_irq IRQ NOT AVAILABLE!.");
|
|
}
|
|
}
|
|
} else {
|
|
GTP_ERROR("can not find touch eint device node!.");
|
|
ret = -1;
|
|
}
|
|
GTP_INFO("[%s]irq:%d", __func__, touch_irq);
|
|
return ret;
|
|
}
|
|
|
|
void gt1x_auto_update_done(void)
|
|
{
|
|
tpd_pm_flag = 1;
|
|
wake_up(&pm_waiter);
|
|
}
|
|
#if CONFIG_GTP_AUTO_UPDATE
|
|
int gt1x_pm_notifier(struct notifier_block *nb, unsigned long val, void *ign)
|
|
{
|
|
switch (val) {
|
|
case PM_RESTORE_PREPARE:
|
|
pr_info("%s: PM_RESTORE_PREPARE enter\n", __func__);
|
|
if (!IS_ERR(update_thread) && update_thread)
|
|
wait_event(waiter, tpd_pm_flag == 1);
|
|
pr_info("%s: PM_RESTORE_PREPARE leave\n", __func__);
|
|
return NOTIFY_DONE;
|
|
}
|
|
return NOTIFY_OK;
|
|
}
|
|
#endif
|
|
|
|
int tpd_reregister_from_tui(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
free_irq(touch_irq, NULL);
|
|
|
|
ret = tpd_irq_registration();
|
|
if (ret < 0) {
|
|
ret = -1;
|
|
GTP_INFO("tpd request_irq IRQ LINE NOT AVAILABLE!.");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int tpd_registration(void *client)
|
|
{
|
|
s32 err = 0;
|
|
s32 idx = 0;
|
|
|
|
gt1x_i2c_client = client;
|
|
|
|
if (gt1x_init()) {
|
|
/* TP resolution == LCD resolution,
|
|
* no need to match resolution when initialized fail
|
|
*/
|
|
gt1x_abs_x_max = 0;
|
|
gt1x_abs_y_max = 0;
|
|
}
|
|
|
|
thread = kthread_run(tpd_event_handler, 0, TPD_DEVICE);
|
|
if (IS_ERR(thread)) {
|
|
err = PTR_ERR(thread);
|
|
GTP_INFO(" failed to create kernel thread: %d\n", err);
|
|
}
|
|
if (tpd_dts_data.use_tpd_button) {
|
|
for (idx = 0; idx < tpd_dts_data.tpd_key_num; idx++)
|
|
input_set_capability(tpd->dev, EV_KEY,
|
|
tpd_dts_data.tpd_key_local[idx]);
|
|
}
|
|
|
|
#ifdef CONFIG_GTP_GESTURE_WAKEUP
|
|
input_set_capability(tpd->dev, EV_KEY, KEY_GESTURE);
|
|
#endif
|
|
|
|
GTP_GPIO_AS_INT(GTP_INT_PORT);
|
|
|
|
msleep(50);
|
|
/* EINT device tree, default EINT enable */
|
|
tpd_irq_registration();
|
|
|
|
#ifdef CONFIG_GTP_ESD_PROTECT
|
|
/* must before auto update */
|
|
gt1x_init_esd_protect();
|
|
gt1x_esd_switch(SWITCH_ON);
|
|
#endif
|
|
update_thread = kthread_run(gt1x_auto_update_proc,
|
|
(void *)NULL, "gt1x_auto_update");
|
|
if (IS_ERR(update_thread)) {
|
|
err = PTR_ERR(update_thread);
|
|
GTP_INFO(" failed to create auto-update thread: %d\n", err);
|
|
}
|
|
pm_notifier_block.notifier_call = gt1x_pm_notifier;
|
|
pm_notifier_block.priority = 0;
|
|
register_pm_notifier(&pm_notifier_block);
|
|
#ifdef CONFIG_MTK_LENS
|
|
AF_PowerDown();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static s32 tpd_i2c_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
int err = 0;
|
|
/*int count = 0;*/
|
|
|
|
GTP_INFO("%s start.", __func__);
|
|
#ifdef CONFIG_MTK_BOOT
|
|
if (get_boot_mode() == RECOVERY_BOOT)
|
|
return 0;
|
|
#endif
|
|
probe_thread = kthread_run(tpd_registration,
|
|
(void *)client, "tpd_probe");
|
|
if (IS_ERR(probe_thread)) {
|
|
err = PTR_ERR(probe_thread);
|
|
GTP_INFO(" failed to create probe thread: %d\n", err);
|
|
return err;
|
|
}
|
|
GTP_INFO("%s start.wait_event_interruptible", __func__);
|
|
wait_event_timeout(init_waiter,
|
|
check_flag == true, 5 * HZ);
|
|
GTP_INFO("%s end.wait_event_interruptible", __func__);
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t tpd_eint_interrupt_handler(unsigned int irq,
|
|
struct irq_desc *desc)
|
|
{
|
|
unsigned long flags;
|
|
|
|
TPD_DEBUG_PRINT_INT;
|
|
tpd_flag = 1;
|
|
spin_lock_irqsave(&irq_flag_lock, flags);
|
|
if (irq_flag == 0) {
|
|
spin_unlock_irqrestore(&irq_flag_lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
/* enter EINT handler disable INT, make sure INT is disable when
|
|
* handle touch event including top/bottom half
|
|
* use _nosync to avoid deadlock
|
|
*/
|
|
irq_flag = 0;
|
|
spin_unlock_irqrestore(&irq_flag_lock, flags);
|
|
disable_irq_nosync(touch_irq);
|
|
GTP_DEBUG("eint disable irq_flat=%d", irq_flag);
|
|
/*GTP_INFO("disable irq_flag=%d",irq_flag);*/
|
|
wake_up_interruptible(&waiter);
|
|
return IRQ_HANDLED;
|
|
}
|
|
static int tpd_history_x, tpd_history_y;
|
|
void gt1x_touch_down(s32 x, s32 y, s32 size, s32 id)
|
|
{
|
|
#ifdef CONFIG_GTP_CHANGE_X2Y
|
|
GTP_SWAP(x, y);
|
|
#endif
|
|
#ifndef CONFIG_GTP_ICS_SLOT_REPORT
|
|
#ifdef CONFIG_CUSTOM_LCM_X
|
|
unsigned long lcm_x = 0, lcm_y = 0;
|
|
int ret;
|
|
#endif
|
|
#endif
|
|
input_report_key(tpd->dev, BTN_TOUCH, 1);
|
|
#ifdef CONFIG_GTP_ICS_SLOT_REPORT
|
|
input_mt_slot(tpd->dev, id);
|
|
input_report_abs(tpd->dev, ABS_MT_PRESSURE, size);
|
|
input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, size);
|
|
input_report_abs(tpd->dev, ABS_MT_TRACKING_ID, id);
|
|
input_report_abs(tpd->dev, ABS_MT_POSITION_X, x);
|
|
input_report_abs(tpd->dev, ABS_MT_POSITION_Y, y);
|
|
#else
|
|
if ((!size) && (!id)) {
|
|
/* for virtual button */
|
|
input_report_abs(tpd->dev, ABS_MT_PRESSURE, 100);
|
|
input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, 100);
|
|
} else {
|
|
input_report_abs(tpd->dev, ABS_MT_PRESSURE, size);
|
|
input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, size);
|
|
input_report_abs(tpd->dev, ABS_MT_TRACKING_ID, id);
|
|
}
|
|
#ifdef CONFIG_CUSTOM_LCM_X
|
|
ret = kstrtoul(CONFIG_CUSTOM_LCM_X, 0, &lcm_x);
|
|
if (ret)
|
|
GTP_ERROR("Touch down get lcm_x failed");
|
|
ret = kstrtoul(CONFIG_CUSTOM_LCM_Y, 0, &lcm_y);
|
|
if (ret)
|
|
GTP_ERROR("Touch down get lcm_y failed");
|
|
|
|
if (x < lcm_x)
|
|
x = 0;
|
|
else
|
|
x = x - lcm_x;
|
|
if (y < lcm_y)
|
|
y = 0;
|
|
else
|
|
y = y - lcm_y;
|
|
|
|
GTP_DEBUG("x:%d, y:%d, lcm_x:%lu, lcm_y:%lu", x, y, lcm_x, lcm_y);
|
|
|
|
#endif
|
|
input_report_abs(tpd->dev, ABS_MT_POSITION_X, x);
|
|
input_report_abs(tpd->dev, ABS_MT_POSITION_Y, y);
|
|
input_mt_sync(tpd->dev);
|
|
#endif
|
|
TPD_DEBUG_SET_TIME;
|
|
TPD_EM_PRINT(x, y, x, y, id, 1);
|
|
tpd_history_x = x;
|
|
tpd_history_y = y;
|
|
#ifdef CONFIG_MTK_BOOT
|
|
if (tpd_dts_data.use_tpd_button) {
|
|
if (get_boot_mode() == FACTORY_BOOT ||
|
|
get_boot_mode() == RECOVERY_BOOT)
|
|
tpd_button(x, y, 1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void gt1x_touch_up(s32 id)
|
|
{
|
|
#ifdef CONFIG_GTP_ICS_SLOT_REPORT
|
|
input_mt_slot(tpd->dev, id);
|
|
input_report_abs(tpd->dev, ABS_MT_TRACKING_ID, -1);
|
|
#else
|
|
input_mt_sync(tpd->dev);
|
|
#endif
|
|
TPD_DEBUG_SET_TIME;
|
|
TPD_EM_PRINT(tpd_history_x, tpd_history_y,
|
|
tpd_history_x, tpd_history_y, id, 0);
|
|
tpd_history_x = 0;
|
|
tpd_history_y = 0;
|
|
#ifdef CONFIG_MTK_BOOT
|
|
if (tpd_dts_data.use_tpd_button) {
|
|
if (get_boot_mode() == FACTORY_BOOT ||
|
|
get_boot_mode() == RECOVERY_BOOT)
|
|
tpd_button(0, 0, 0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_GTP_CHARGER_SWITCH
|
|
u32 gt1x_get_charger_status(void)
|
|
{
|
|
u32 chr_status = 0;
|
|
#ifdef MT6573
|
|
chr_status = *(u32 *)CHR_CON0;
|
|
chr_status &= (1 << 13);
|
|
#else
|
|
/* ( defined(MT6575) || defined(MT6577) || defined(MT6589) ) */
|
|
chr_status = upmu_is_chr_det();
|
|
#endif
|
|
return chr_status;
|
|
}
|
|
#endif
|
|
|
|
static int tpd_event_handler(void *unused)
|
|
{
|
|
u8 finger = 0;
|
|
u8 end_cmd = 0;
|
|
s32 ret = 0;
|
|
u8 point_data[11] = { 0 };
|
|
struct sched_param param = {.sched_priority = 4};
|
|
|
|
sched_setscheduler(current, SCHED_RR, ¶m);
|
|
do {
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
if (tpd_eint_mode) {
|
|
wait_event_interruptible(waiter, tpd_flag != 0);
|
|
tpd_flag = 0;
|
|
} else {
|
|
GTP_DEBUG("Polling coordinate mode!");
|
|
msleep(tpd_polling_time);
|
|
}
|
|
|
|
set_current_state(TASK_RUNNING);
|
|
mutex_lock(&i2c_access);
|
|
/* don't reset before "if (tpd_halt..." */
|
|
|
|
#ifdef CONFIG_GTP_GESTURE_WAKEUP
|
|
ret = gesture_event_handler(tpd->dev);
|
|
if (ret >= 0) {
|
|
gt1x_irq_enable();
|
|
mutex_unlock(&i2c_access);
|
|
continue;
|
|
}
|
|
#endif
|
|
if (tpd_halt) {
|
|
mutex_unlock(&i2c_access);
|
|
GTP_DEBUG("return for interrupt after suspend... ");
|
|
continue;
|
|
}
|
|
|
|
/* read coordinates */
|
|
ret = gt1x_i2c_read(GTP_READ_COOR_ADDR,
|
|
point_data, sizeof(point_data));
|
|
if (ret < 0) {
|
|
GTP_ERROR("I2C transfer error!");
|
|
#ifndef CONFIG_GTP_ESD_PROTECT
|
|
gt1x_power_reset();
|
|
#endif
|
|
goto exit_work_func;
|
|
}
|
|
finger = point_data[0];
|
|
|
|
/* response to a ic request */
|
|
if (finger == 0x00)
|
|
gt1x_request_event_handler();
|
|
|
|
if ((finger & 0x80) == 0) {
|
|
#ifdef CONFIG_HOTKNOT_BLOCK_RW
|
|
if (!hotknot_paired_flag) {
|
|
#endif
|
|
gt1x_irq_enable();
|
|
mutex_unlock(&i2c_access);
|
|
continue;
|
|
}
|
|
#ifdef CONFIG_HOTKNOT_BLOCK_RW
|
|
}
|
|
ret = hotknot_event_handler(point_data);
|
|
if (!ret)
|
|
goto exit_work_func;
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_PROXIMITY
|
|
ret = gt1x_prox_event_handler(point_data);
|
|
if (ret > 0)
|
|
goto exit_work_func;
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_WITH_STYLUS
|
|
ret = gt1x_touch_event_handler(point_data, tpd->dev, pen_dev);
|
|
#else
|
|
ret = gt1x_touch_event_handler(point_data, tpd->dev, NULL);
|
|
#endif
|
|
if (ret) {
|
|
gt1x_irq_enable();
|
|
mutex_unlock(&i2c_access);
|
|
continue;
|
|
}
|
|
|
|
exit_work_func:
|
|
|
|
if (!gt1x_rawdiff_mode) {
|
|
ret = gt1x_i2c_write(GTP_READ_COOR_ADDR, &end_cmd, 1);
|
|
if (ret < 0)
|
|
GTP_INFO("I2C write end_cmd error!");
|
|
}
|
|
gt1x_irq_enable();
|
|
mutex_unlock(&i2c_access);
|
|
|
|
} while (!kthread_should_stop());
|
|
|
|
return 0;
|
|
}
|
|
|
|
int gt1x_debug_proc(u8 *buf, int count)
|
|
{
|
|
char mode_str[50] = { 0 };
|
|
int mode;
|
|
int ret;
|
|
|
|
ret = sscanf(buf, "%49s %d", (char *)&mode_str, &mode);
|
|
if (ret < 0) {
|
|
GTP_ERROR("%s sscanf failed", __func__);
|
|
return ret;
|
|
}
|
|
/***********POLLING/EINT MODE switch****************/
|
|
if (strcmp(mode_str, "polling") == 0) {
|
|
if (mode >= 10 && mode <= 200) {
|
|
GTP_INFO("Switch to polling mode, polling time is %d",
|
|
mode);
|
|
tpd_eint_mode = 0;
|
|
tpd_polling_time = mode;
|
|
tpd_flag = 1;
|
|
wake_up_interruptible(&waiter);
|
|
} else {
|
|
/* please set between 10~200ms */
|
|
GTP_INFO("Wrong polling time\n");
|
|
}
|
|
return count;
|
|
}
|
|
if (strcmp(mode_str, "eint") == 0) {
|
|
GTP_INFO("Switch to eint mode");
|
|
tpd_eint_mode = 1;
|
|
return count;
|
|
}
|
|
/**********************************************/
|
|
if (strcmp(mode_str, "switch") == 0) {
|
|
if (mode == 0) /*turn off*/
|
|
tpd_off();
|
|
else if (mode == 1) /*turn on*/
|
|
tpd_on();
|
|
else
|
|
GTP_ERROR("error mode :%d", mode);
|
|
return count;
|
|
} else if (strcmp(mode_str, "enable_irq") == 0) {
|
|
if (mode == 0) {
|
|
GTP_ERROR("enable_irq 0, touch_irq = %d, irq_flag = %d",
|
|
(int)touch_irq, irq_flag);
|
|
disable_irq(touch_irq);
|
|
} else if (mode == 1) {
|
|
GTP_ERROR("enable_irq 1, touch_irq = %d, irq_flag = %d",
|
|
(int)touch_irq, irq_flag);
|
|
enable_irq(touch_irq);
|
|
} else
|
|
GTP_ERROR("error mode :%d", mode);
|
|
} else if (strcmp(mode_str, "rerequest_irq") == 0) {
|
|
int ret;
|
|
|
|
GTP_ERROR("rerequest_irq, touch_irq = %d, irq_flag = %d",
|
|
(int)touch_irq, irq_flag);
|
|
free_irq(touch_irq, NULL);
|
|
ret = tpd_irq_registration();
|
|
if (ret < 0)
|
|
GTP_ERROR("rerequest_irq fail, %d!", ret);
|
|
} else if (strcmp(mode_str, "eint_dump_status") == 0) {
|
|
GTP_ERROR("eint_dump_status, %u", touch_irq);
|
|
/*mt_eint_dump_status(1);*/
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static u16 convert_productname(u8 *name)
|
|
{
|
|
int i;
|
|
u16 product = 0;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
product <<= 4;
|
|
if (name[i] < '0' || name[i] > '9')
|
|
product += '*';
|
|
else
|
|
product += name[i] - '0';
|
|
}
|
|
return product;
|
|
}
|
|
|
|
static int tpd_i2c_remove(struct i2c_client *client)
|
|
{
|
|
gt1x_deinit();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tpd_local_init(void)
|
|
{
|
|
#if !defined CONFIG_MTK_LEGACY
|
|
int ret;
|
|
|
|
GTP_INFO("Device Tree get regulator!");
|
|
#if defined(CONFIG_MACH_MT6759) || defined(CONFIG_ARCH_MT6758)
|
|
tpd->reg = regulator_get(tpd->tpd_dev, "vldo28");
|
|
#else
|
|
tpd->reg = regulator_get(tpd->tpd_dev, "vtouch");
|
|
#endif
|
|
if (IS_ERR(tpd->reg)) {
|
|
GTP_ERROR("regulator_get() failed!\n");
|
|
return PTR_ERR(tpd->reg);
|
|
}
|
|
|
|
/*set 2.8v*/
|
|
ret = regulator_set_voltage(tpd->reg, 2800000, 2800000);
|
|
if (ret) {
|
|
GTP_ERROR("regulator_set_voltage(%d) failed!\n", ret);
|
|
return -1;
|
|
}
|
|
#endif
|
|
#ifdef TPD_POWER_SOURCE_CUSTOM
|
|
#ifdef CONFIG_ARCH_MT6580
|
|
/*get pointer to regulator structure*/
|
|
tpd->reg = regulator_get(tpd->tpd_dev, "VGP1");
|
|
if (IS_ERR(tpd->reg))
|
|
GTP_ERROR("regulator_get() failed!\n");
|
|
#endif
|
|
#endif
|
|
#if TPD_SUPPORT_I2C_DMA
|
|
tpd->dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
|
|
gpDMABuf_va = (u8 *) dma_alloc_coherent(&tpd->dev->dev,
|
|
IIC_DMA_MAX_TRANSFER_SIZE,
|
|
&gpDMABuf_pa, GFP_KERNEL);
|
|
if (!gpDMABuf_va) {
|
|
GTP_ERROR("Allocate DMA I2C Buffer failed!");
|
|
return -1;
|
|
}
|
|
memset(gpDMABuf_va, 0, IIC_DMA_MAX_TRANSFER_SIZE);
|
|
#endif
|
|
spin_lock_init(&irq_flag_lock);
|
|
if (i2c_add_driver(&tpd_i2c_driver) != 0) {
|
|
GTP_ERROR("unable to add i2c driver.");
|
|
return -1;
|
|
}
|
|
/*disable auto load touch driver for linux3.0 porting*/
|
|
if (tpd_load_status == 0) {
|
|
GTP_ERROR("add error touch panel driver.");
|
|
i2c_del_driver(&tpd_i2c_driver);
|
|
return -1;
|
|
}
|
|
#ifdef CONFIG_GTP_ICS_SLOT_REPORT
|
|
input_mt_init_slots(tpd->dev, 10, 0);
|
|
#endif
|
|
if (!tpd_dts_data.touch_max_num)
|
|
tpd_dts_data.touch_max_num = DEFAULT_MAX_TOUCH_NUM;
|
|
input_set_abs_params(tpd->dev, ABS_MT_TRACKING_ID, 0,
|
|
(tpd_dts_data.touch_max_num - 1), 0, 0);
|
|
if (tpd_dts_data.use_tpd_button) {
|
|
/*initialize tpd button data*/
|
|
tpd_button_setting(tpd_dts_data.tpd_key_num,
|
|
tpd_dts_data.tpd_key_local,
|
|
tpd_dts_data.tpd_key_dim_local);
|
|
}
|
|
#if (defined(TPD_WARP_START) && defined(TPD_WARP_END))
|
|
TPD_DO_WARP = 1;
|
|
memcpy(tpd_wb_start, tpd_wb_start_local, TPD_WARP_CNT * 4);
|
|
memcpy(tpd_wb_end, tpd_wb_start_local, TPD_WARP_CNT * 4);
|
|
#endif
|
|
|
|
#if (defined(TPD_HAVE_CALIBRATION) && !defined(TPD_CUSTOM_CALIBRATION))
|
|
memcpy(tpd_calmat, tpd_def_calmat_local, 8 * 4);
|
|
memcpy(tpd_def_calmat, tpd_def_calmat_local, 8 * 4);
|
|
#endif
|
|
|
|
/*set vendor string*/
|
|
tpd->dev->id.vendor = 0x00;
|
|
tpd->dev->id.product = convert_productname(gt1x_version.product_id);
|
|
tpd->dev->id.version = (gt1x_version.patch_id >> 8);
|
|
|
|
GTP_INFO("end %s, %d\n", __func__, __LINE__);
|
|
tpd_type_cap = 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Function to manage low power suspend */
|
|
static void tpd_suspend(struct device *h)
|
|
{
|
|
s32 ret = -1;
|
|
#if defined(CONFIG_GTP_HOTKNOT)
|
|
#ifndef CONFIG_HOTKNOT_BLOCK_RW
|
|
u8 buf[1] = { 0 };
|
|
#endif
|
|
#endif
|
|
if (is_resetting || update_info.status)
|
|
return;
|
|
GTP_INFO("TPD suspend start...");
|
|
|
|
mutex_lock(&tui_lock);
|
|
if (tpd_tui_flag) {
|
|
GTP_INFO("[TPD] skip %s due to TUI in used\n", __func__);
|
|
tpd_tui_low_power_skipped = 1;
|
|
mutex_unlock(&tui_lock);
|
|
return;
|
|
}
|
|
mutex_unlock(&tui_lock);
|
|
|
|
#ifdef CONFIG_GTP_PROXIMITY
|
|
if (gt1x_proximity_flag == 1) {
|
|
GTP_INFO("Suspend: proximity is detected!");
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_HOTKNOT
|
|
if (hotknot_enabled) {
|
|
#ifdef CONFIG_HOTKNOT_BLOCK_RW
|
|
if (hotknot_paired_flag) {
|
|
GTP_INFO("Suspend: hotknot is paired!");
|
|
return;
|
|
}
|
|
#else
|
|
gt1x_i2c_read(GTP_REG_HN_PAIRED, buf, sizeof(buf));
|
|
GTP_DEBUG("0x81AA: 0x%02X", buf[0]);
|
|
if (buf[0] == 0x55) {
|
|
GTP_INFO("Suspend: hotknot is paired!");
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
tpd_halt = 1;
|
|
|
|
#ifdef CONFIG_GTP_ESD_PROTECT
|
|
gt1x_esd_switch(SWITCH_OFF);
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_CHARGER_SWITCH
|
|
gt1x_charger_switch(SWITCH_OFF);
|
|
#endif
|
|
|
|
mutex_lock(&i2c_access);
|
|
|
|
#ifdef CONFIG_GTP_GESTURE_WAKEUP
|
|
gesture_clear_wakeup_data();
|
|
if (gesture_enabled) {
|
|
gesture_enter_doze();
|
|
} else
|
|
#endif
|
|
{
|
|
gt1x_irq_disable();
|
|
ret = gt1x_enter_sleep();
|
|
if (ret < 0)
|
|
GTP_ERROR("GTP early suspend failed.");
|
|
else
|
|
gtp_suspend = true;
|
|
}
|
|
|
|
mutex_unlock(&i2c_access);
|
|
msleep(58);
|
|
}
|
|
|
|
/* Function to manage power-on resume */
|
|
static void tpd_resume(struct device *h)
|
|
{
|
|
s32 ret = -1;
|
|
|
|
if (is_resetting || update_info.status)
|
|
return;
|
|
|
|
GTP_INFO("TPD resume start...");
|
|
gtp_suspend = false;
|
|
|
|
#ifdef CONFIG_GTP_PROXIMITY
|
|
if (gt1x_proximity_flag == 1) {
|
|
GTP_INFO("Resume: proximity is on!");
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_HOTKNOT
|
|
if (hotknot_enabled) {
|
|
#ifdef CONFIG_HOTKNOT_BLOCK_RW
|
|
if (hotknot_paired_flag) {
|
|
hotknot_paired_flag = 0;
|
|
GTP_INFO("Resume: hotknot is paired!");
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
gt1x_irq_disable();
|
|
ret = gt1x_wakeup_sleep();
|
|
if (ret < 0)
|
|
GTP_ERROR("GTP later resume failed.");
|
|
#ifdef CONFIG_GTP_HOTKNOT
|
|
if (!hotknot_enabled)
|
|
gt1x_send_cmd(GTP_CMD_HN_EXIT_SLAVE, 0);
|
|
#endif
|
|
|
|
#ifdef CONFIG_GTP_CHARGER_SWITCH
|
|
gt1x_charger_config(0);
|
|
gt1x_charger_switch(SWITCH_ON);
|
|
#endif
|
|
|
|
tpd_halt = 0;
|
|
gt1x_irq_enable();
|
|
|
|
#ifdef CONFIG_GTP_ESD_PROTECT
|
|
gt1x_esd_switch(SWITCH_ON);
|
|
#endif
|
|
|
|
#ifdef CONFIG_MTK_LENS
|
|
AF_PowerDown();
|
|
#endif
|
|
GTP_DEBUG("tpd resume end.");
|
|
}
|
|
|
|
static struct tpd_driver_t tpd_device_driver = {
|
|
.tpd_device_name = "gt9xx",
|
|
.tpd_local_init = tpd_local_init,
|
|
.suspend = tpd_suspend,
|
|
.resume = tpd_resume,
|
|
};
|
|
|
|
void tpd_off(void)
|
|
{
|
|
gt1x_power_switch(SWITCH_OFF);
|
|
tpd_halt = 1;
|
|
gt1x_irq_disable();
|
|
}
|
|
|
|
int tpd_enter_tui(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
tpd_tui_flag = 1;
|
|
GTP_INFO("[%s] enter tui", __func__);
|
|
return ret;
|
|
}
|
|
|
|
int tpd_exit_tui(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
GTP_INFO("[%s] exit TUI+", __func__);
|
|
tpd_reregister_from_tui();
|
|
mutex_lock(&tui_lock);
|
|
tpd_tui_flag = 0;
|
|
mutex_unlock(&tui_lock);
|
|
if (tpd_tui_low_power_skipped) {
|
|
tpd_tui_low_power_skipped = 0;
|
|
GTP_INFO("[%s] do low power again+", __func__);
|
|
tpd_suspend(NULL);
|
|
GTP_INFO("[%s] do low power again-", __func__);
|
|
}
|
|
GTP_INFO("[%s] exit TUI-", __func__);
|
|
return ret;
|
|
}
|
|
|
|
void tpd_on(void)
|
|
{
|
|
s32 ret = -1, retry = 0;
|
|
|
|
while (retry++ < 5) {
|
|
ret = tpd_power_on();
|
|
if (ret < 0)
|
|
GTP_ERROR("I2C Power on ERROR!");
|
|
ret = gt1x_send_cfg(gt1x_config, gt1x_cfg_length);
|
|
if (ret == 0) {
|
|
GTP_DEBUG("Wakeup sleep send gt1x_config success.");
|
|
break;
|
|
}
|
|
}
|
|
if (ret < 0)
|
|
GTP_ERROR("GTP later resume failed.");
|
|
tpd_halt = 0;
|
|
}
|
|
/* called when loaded into kernel */
|
|
static int __init tpd_driver_init(void)
|
|
{
|
|
GTP_INFO("Goodix touch panel driver init.");
|
|
tpd_get_dts_info();
|
|
if (tpd_driver_add(&tpd_device_driver) < 0)
|
|
GTP_INFO("add generic driver failed\n");
|
|
return 0;
|
|
}
|
|
|
|
/* should never be called */
|
|
static void __exit tpd_driver_exit(void)
|
|
{
|
|
GTP_INFO("MediaTek gt91xx touch panel driver exit\n");
|
|
tpd_driver_remove(&tpd_device_driver);
|
|
}
|
|
|
|
module_init(tpd_driver_init);
|
|
module_exit(tpd_driver_exit);
|