/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2021 MediaTek Inc. */ #include #include #include #include #include #include #include #include #include #if defined(CONFIG_FB) #ifdef CONFIG_DRM_MSM #include #endif #include #include #elif defined(CONFIG_HAS_EARLYSUSPEND) #include #endif #include "nt36xxx.h" #if NVT_TOUCH_ESD_PROTECT #include #endif /* #if NVT_TOUCH_ESD_PROTECT */ #ifdef CONFIG_DRM_MEDIATEK #include "mtk_panel_ext.h" #endif #if NVT_TOUCH_ESD_PROTECT static struct delayed_work nvt_esd_check_work; static struct workqueue_struct *nvt_esd_check_wq; static unsigned long irq_timer; uint8_t esd_check; uint8_t esd_retry; #endif /* #if NVT_TOUCH_ESD_PROTECT */ struct nvt_ts_data *ts; char novatek_firmware[25]; /* For SPI mode */ static struct pinctrl *nt36672_pinctrl; static struct pinctrl_state *nt36672_spi_mode_default; #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ static int nvt_drm_notifier_callback(struct notifier_block *self, unsigned long event, void *data); #else static int nvt_fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data); #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) static void nvt_ts_early_suspend(struct early_suspend *h); static void nvt_ts_late_resume(struct early_suspend *h); #endif static int32_t nvt_ts_resume(struct device *dev); static int32_t nvt_ts_suspend(struct device *dev); uint32_t ENG_RST_ADDR = 0x7FFF80; uint32_t SWRST_N8_ADDR; //read from dtsi uint32_t SPI_RD_FAST_ADDR; //read from dtsi #if TOUCH_KEY_NUM > 0 const uint16_t touch_key_array[TOUCH_KEY_NUM] = { KEY_BACK, KEY_HOME, KEY_MENU }; #endif #if WAKEUP_GESTURE const uint16_t gesture_key_array[] = { KEY_POWER, //GESTURE_WORD_C KEY_POWER, //GESTURE_WORD_W KEY_POWER, //GESTURE_WORD_V KEY_POWER, //GESTURE_DOUBLE_CLICK KEY_POWER, //GESTURE_WORD_Z KEY_POWER, //GESTURE_WORD_M KEY_POWER, //GESTURE_WORD_O KEY_POWER, //GESTURE_WORD_e KEY_POWER, //GESTURE_WORD_S KEY_POWER, //GESTURE_SLIDE_UP KEY_POWER, //GESTURE_SLIDE_DOWN KEY_POWER, //GESTURE_SLIDE_LEFT KEY_POWER, //GESTURE_SLIDE_RIGHT }; #endif #ifdef CONFIG_MTK_SPI const struct mt_chip_conf spi_ctrdata = { .setuptime = 25, .holdtime = 25, .high_time = 5, /* 10MHz (SPI_SPEED=100M / (high_time+low_time(10ns))) */ .low_time = 5, .cs_idletime = 2, .ulthgh_thrsh = 0, .cpol = 0, .cpha = 0, .rx_mlsb = 1, .tx_mlsb = 1, .tx_endian = 0, .rx_endian = 0, .com_mod = DMA_TRANSFER, .pause = 0, .finish_intr = 1, .deassert = 0, .ulthigh = 0, .tckdly = 0, }; #endif #ifdef CONFIG_SPI_MT65XX const struct mtk_chip_config spi_ctrdata = { .rx_mlsb = 1, .tx_mlsb = 1, .sample_sel = 0, .cs_setuptime = 0, .cs_holdtime = 0, .cs_idletime = 0, .deassert_mode = false, .tick_delay = 0, }; #endif static uint8_t bTouchIsAwake; /******************************************************* Description: Novatek touchscreen irq enable/disable function. return: n.a. *******************************************************/ static void nvt_irq_enable(bool enable) { struct irq_desc *desc; if (enable) { if (!ts->irq_enabled) { enable_irq(ts->client->irq); ts->irq_enabled = true; } } else { if (ts->irq_enabled) { disable_irq(ts->client->irq); ts->irq_enabled = false; } } desc = irq_to_desc(ts->client->irq); NVT_LOG("enable=%d, desc->depth=%d\n", enable, desc->depth); } /******************************************************* Description: Novatek touchscreen spi read/write core function. return: Executive outcomes. 0---succeed. *******************************************************/ static inline int32_t spi_read_write(struct spi_device *client, uint8_t *buf, size_t len, NVT_SPI_RW rw) { struct spi_message m; struct spi_transfer t = { .len = len, }; memcpy(ts->xbuf, buf, len + DUMMY_BYTES); switch (rw) { case NVTREAD: t.tx_buf = ts->xbuf; t.rx_buf = ts->rbuf; t.len = (len + DUMMY_BYTES); break; case NVTWRITE: t.tx_buf = ts->xbuf; break; } spi_message_init(&m); spi_message_add_tail(&t, &m); return spi_sync(client, &m); } /******************************************************* Description: Novatek touchscreen spi read function. return: Executive outcomes. 2---succeed. -5---I/O error *******************************************************/ int32_t CTP_SPI_READ(struct spi_device *client, uint8_t *buf, uint16_t len) { int32_t ret = -1; int32_t retries = 0; mutex_lock(&ts->xbuf_lock); buf[0] = SPI_READ_MASK(buf[0]); while (retries < 5) { ret = spi_read_write(client, buf, len, NVTREAD); if (ret == 0) break; retries++; } if (unlikely(retries == 5)) { NVT_ERR("read error, ret=%d\n", ret); ret = -EIO; } else { memcpy((buf + 1), (ts->rbuf + 2), (len - 1)); } mutex_unlock(&ts->xbuf_lock); return ret; } /******************************************************* Description: Novatek touchscreen spi write function. return: Executive outcomes. 1---succeed. -5---I/O error *******************************************************/ int32_t CTP_SPI_WRITE(struct spi_device *client, uint8_t *buf, uint16_t len) { int32_t ret = -1; int32_t retries = 0; mutex_lock(&ts->xbuf_lock); buf[0] = SPI_WRITE_MASK(buf[0]); while (retries < 5) { ret = spi_read_write(client, buf, len, NVTWRITE); if (ret == 0) break; retries++; } if (unlikely(retries == 5)) { NVT_ERR("error, ret=%d\n", ret); ret = -EIO; } mutex_unlock(&ts->xbuf_lock); return ret; } /******************************************************* Description: Novatek touchscreen set index/page/addr address. return: Executive outcomes. 0---succeed. -5---access fail. *******************************************************/ int32_t nvt_set_page(uint32_t addr) { uint8_t buf[4] = { 0 }; buf[0] = 0xFF; //set index/page/addr command buf[1] = (addr >> 15) & 0xFF; buf[2] = (addr >> 7) & 0xFF; return CTP_SPI_WRITE(ts->client, buf, 3); } /******************************************************* Description: Novatek touchscreen write data to specify address. return: Executive outcomes. 0---succeed. -5---access fail. *******************************************************/ int32_t nvt_write_addr(uint32_t addr, uint8_t data) { int32_t ret = 0; uint8_t buf[4] = { 0 }; //---set xdata index--- buf[0] = 0xFF; //set index/page/addr command buf[1] = (addr >> 15) & 0xFF; buf[2] = (addr >> 7) & 0xFF; ret = CTP_SPI_WRITE(ts->client, buf, 3); if (ret) { NVT_ERR("set page 0x%06X failed, ret = %d\n", addr, ret); return ret; } //---write data to index--- buf[0] = addr & (0x7F); buf[1] = data; ret = CTP_SPI_WRITE(ts->client, buf, 2); if (ret) { NVT_ERR("write data to 0x%06X failed, ret = %d\n", addr, ret); return ret; } return ret; } /******************************************************* Description: Novatek touchscreen enable hw bld crc function. return: N/A. *******************************************************/ void nvt_bld_crc_enable(void) { uint8_t buf[2] = { 0 }; //---set xdata index to BLD_CRC_EN_ADDR--- nvt_set_page(ts->mmap->BLD_CRC_EN_ADDR); //---read data from index--- buf[0] = ts->mmap->BLD_CRC_EN_ADDR & (0x7F); buf[1] = 0xFF; CTP_SPI_READ(ts->client, buf, 2); //---write data to index--- buf[0] = ts->mmap->BLD_CRC_EN_ADDR & (0x7F); buf[1] = buf[1] | (0x01 << 7); CTP_SPI_WRITE(ts->client, buf, 2); } /******************************************************* Description: Novatek touchscreen clear status & enable fw crc function. return: N/A. *******************************************************/ void nvt_fw_crc_enable(void) { uint8_t buf[2] = { 0 }; //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR); //---clear fw reset status--- buf[0] = EVENT_MAP_RESET_COMPLETE & (0x7F); buf[1] = 0x00; CTP_SPI_WRITE(ts->client, buf, 2); //---enable fw crc--- buf[0] = EVENT_MAP_HOST_CMD & (0x7F); buf[1] = 0xAE; //enable fw crc command CTP_SPI_WRITE(ts->client, buf, 2); } /******************************************************* Description: Novatek touchscreen set boot ready function. return: N/A. *******************************************************/ void nvt_boot_ready(void) { //---write BOOT_RDY status cmds--- nvt_write_addr(ts->mmap->BOOT_RDY_ADDR, 1); mdelay(5); if (!ts->hw_crc) { //---write BOOT_RDY status cmds--- nvt_write_addr(ts->mmap->BOOT_RDY_ADDR, 0); //---write POR_CD cmds--- nvt_write_addr(ts->mmap->POR_CD_ADDR, 0xA0); } } /******************************************************* Description: Novatek touchscreen eng reset cmd function. return: n.a. *******************************************************/ void nvt_eng_reset(void) { //---eng reset cmds to ENG_RST_ADDR--- nvt_write_addr(ENG_RST_ADDR, 0x5A); mdelay(1); //wait tMCU_Idle2TP_REX_Hi after TP_RST } /******************************************************* Description: Novatek touchscreen reset MCU function. return: n.a. *******************************************************/ void nvt_sw_reset(void) { //---software reset cmds to SWRST_N8_ADDR--- nvt_write_addr(SWRST_N8_ADDR, 0x55); msleep(10); } /******************************************************* Description: Novatek touchscreen reset MCU then into idle mode function. return: n.a. *******************************************************/ void nvt_sw_reset_idle(void) { //---MCU idle cmds to SWRST_N8_ADDR--- nvt_write_addr(SWRST_N8_ADDR, 0xAA); msleep(15); } /******************************************************* Description: Novatek touchscreen reset MCU (boot) function. return: n.a. *******************************************************/ void nvt_bootloader_reset(void) { //---reset cmds to SWRST_N8_ADDR--- nvt_write_addr(SWRST_N8_ADDR, 0x69); mdelay(5); //wait tBRST2FR after Bootload RST if (SPI_RD_FAST_ADDR) { /* disable SPI_RD_FAST */ nvt_write_addr(SPI_RD_FAST_ADDR, 0x00); } } /******************************************************* Description: Novatek touchscreen clear FW status function. return: Executive outcomes. 0---succeed. -1---fail. *******************************************************/ int32_t nvt_clear_fw_status(void) { uint8_t buf[8] = { 0 }; int32_t i = 0; const int32_t retry = 20; for (i = 0; i < retry; i++) { //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR | EVENT_MAP_HANDSHAKING_or_SUB_CMD_BYTE); //---clear fw status--- buf[0] = EVENT_MAP_HANDSHAKING_or_SUB_CMD_BYTE; buf[1] = 0x00; CTP_SPI_WRITE(ts->client, buf, 2); //---read fw status--- buf[0] = EVENT_MAP_HANDSHAKING_or_SUB_CMD_BYTE; buf[1] = 0xFF; CTP_SPI_READ(ts->client, buf, 2); if (buf[1] == 0x00) break; usleep_range(10000, 10000); } if (i >= retry) { NVT_ERR("failed, i=%d, buf[1]=0x%02X\n", i, buf[1]); return -1; } else { return 0; } } /******************************************************* Description: Novatek touchscreen check FW status function. return: Executive outcomes. 0---succeed. -1---failed. *******************************************************/ int32_t nvt_check_fw_status(void) { uint8_t buf[8] = { 0 }; int32_t i = 0; const int32_t retry = 50; for (i = 0; i < retry; i++) { //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR | EVENT_MAP_HANDSHAKING_or_SUB_CMD_BYTE); //---read fw status--- buf[0] = EVENT_MAP_HANDSHAKING_or_SUB_CMD_BYTE; buf[1] = 0x00; CTP_SPI_READ(ts->client, buf, 2); if ((buf[1] & 0xF0) == 0xA0) break; usleep_range(10000, 10000); } if (i >= retry) { NVT_ERR("failed, i=%d, buf[1]=0x%02X\n", i, buf[1]); return -1; } else { return 0; } } /******************************************************* Description: Novatek touchscreen check FW reset state function. return: Executive outcomes. 0---succeed. -1---failed. *******************************************************/ int32_t nvt_check_fw_reset_state(RST_COMPLETE_STATE check_reset_state) { uint8_t buf[8] = { 0 }; int32_t ret = 0; int32_t retry = 0; int32_t retry_max = (check_reset_state == RESET_STATE_INIT) ? 10 : 50; //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR | EVENT_MAP_RESET_COMPLETE); while (1) { //---read reset state--- buf[0] = EVENT_MAP_RESET_COMPLETE; buf[1] = 0x00; CTP_SPI_READ(ts->client, buf, 6); if ((buf[1] >= check_reset_state) && (buf[1] <= RESET_STATE_MAX)) { ret = 0; break; } retry++; if (unlikely(retry > retry_max)) { NVT_ERR("error, retry=%d, buf[1]=0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X\n", retry, buf[1], buf[2], buf[3], buf[4], buf[5]); ret = -1; break; } usleep_range(10000, 10000); } return ret; } /******************************************************* Description: Novatek touchscreen get novatek project id information function. return: Executive outcomes. 0---success. -1---fail. *******************************************************/ int32_t nvt_read_pid(void) { uint8_t buf[3] = { 0 }; int32_t ret = 0; //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR | EVENT_MAP_PROJECTID); //---read project id--- buf[0] = EVENT_MAP_PROJECTID; buf[1] = 0x00; buf[2] = 0x00; CTP_SPI_READ(ts->client, buf, 3); ts->nvt_pid = (buf[2] << 8) + buf[1]; //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR); NVT_LOG("PID=%04X\n", ts->nvt_pid); return ret; } /******************************************************* Description: Novatek touchscreen get firmware related information function. return: Executive outcomes. 0---success. -1---fail. *******************************************************/ int32_t nvt_get_fw_info(void) { uint8_t buf[64] = { 0 }; uint32_t retry_count = 0; int32_t ret = 0; info_retry: //---set xdata index to EVENT BUF ADDR--- nvt_set_page(ts->mmap->EVENT_BUF_ADDR | EVENT_MAP_FWINFO); //---read fw info--- buf[0] = EVENT_MAP_FWINFO; CTP_SPI_READ(ts->client, buf, 17); ts->fw_ver = buf[1]; ts->x_num = buf[3]; ts->y_num = buf[4]; ts->abs_x_max = (uint16_t) ((buf[5] << 8) | buf[6]); ts->abs_y_max = (uint16_t) ((buf[7] << 8) | buf[8]); ts->max_button_num = buf[11]; //---clear x_num, y_num if fw info is broken--- if ((buf[1] + buf[2]) != 0xFF) { NVT_ERR("FW info is broken! fw_ver=0x%02X, ~fw_ver=0x%02X\n", buf[1], buf[2]); ts->fw_ver = 0; ts->x_num = 18; ts->y_num = 32; ts->abs_x_max = TOUCH_DEFAULT_MAX_WIDTH; ts->abs_y_max = TOUCH_DEFAULT_MAX_HEIGHT; ts->max_button_num = TOUCH_KEY_NUM; if (retry_count < 3) { retry_count++; NVT_ERR("retry_count=%d\n", retry_count); goto info_retry; } else { NVT_ERR("Set default fw_ver=%d, x_num=%d, y_num=%d, \ abs_x_max=%d, abs_y_max=%d, max_button_num=%d!\n", ts->fw_ver, ts->x_num, ts->y_num, ts->abs_x_max, ts->abs_y_max, ts->max_button_num); ret = -1; } } else { ret = 0; } NVT_LOG("fw_ver = 0x%02X, fw_type = 0x%02X\n", ts->fw_ver, buf[14]); //---Get Novatek PID--- nvt_read_pid(); return ret; } /******************************************************* Create Device Node (Proc Entry) *******************************************************/ #if NVT_TOUCH_PROC static struct proc_dir_entry *NVT_proc_entry; #define DEVICE_NAME "NVTSPI" /******************************************************* Description: Novatek touchscreen /proc/NVTSPI read function. return: Executive outcomes. 2---succeed. -5,-14---failed. *******************************************************/ static ssize_t nvt_flash_read(struct file *file, char __user *buff, size_t count, loff_t *offp) { uint8_t *str = NULL; int32_t ret = 0; int32_t retries = 0; int8_t spi_wr = 0; uint8_t *buf; if ((count > NVT_TRANSFER_LEN + 3) || (count < 3)) { NVT_ERR("invalid transfer len!\n"); return -EFAULT; } /* allocate buffer for spi transfer */ str = (uint8_t *) kzalloc((count), GFP_KERNEL); if (str == NULL) { NVT_ERR("kzalloc for buf failed!\n"); ret = -ENOMEM; goto kzalloc_failed; } buf = (uint8_t *) kzalloc((count), GFP_KERNEL | GFP_DMA); if (buf == NULL) { NVT_ERR("kzalloc for buf failed!\n"); ret = -ENOMEM; kfree(str); str = NULL; goto kzalloc_failed; } if (copy_from_user(str, buff, count)) { NVT_ERR("copy from user error\n"); ret = -EFAULT; goto out; } #if NVT_TOUCH_ESD_PROTECT /* * stop esd check work to avoid case that 0x77 report righ after here to enable esd check again * finally lead to trigger esd recovery bootloader reset */ cancel_delayed_work_sync(&nvt_esd_check_work); nvt_esd_check_enable(false); #endif /* #if NVT_TOUCH_ESD_PROTECT */ spi_wr = str[0] >> 7; if ((((str[0] & 0x7F) << 8) | str[1]) > (count - 2 * sizeof(*str))) { NVT_ERR("memcpy out-of-bounds error!\n"); ret = -ENOMEM; goto out; } memcpy(buf, str + 2, ((str[0] & 0x7F) << 8) | str[1]); if (spi_wr == NVTWRITE) { //SPI write while (retries < 20) { ret = CTP_SPI_WRITE(ts->client, buf, ((str[0] & 0x7F) << 8) | str[1]); if (!ret) break; else NVT_ERR("error, retries=%d, ret=%d\n", retries, ret); retries++; } if (unlikely(retries == 20)) { NVT_ERR("error, ret = %d\n", ret); ret = -EIO; goto out; } } else if (spi_wr == NVTREAD) { //SPI read while (retries < 20) { ret = CTP_SPI_READ(ts->client, buf, ((str[0] & 0x7F) << 8) | str[1]); if (!ret) break; else NVT_ERR("error, retries=%d, ret=%d\n", retries, ret); retries++; } memcpy(str + 2, buf, ((str[0] & 0x7F) << 8) | str[1]); // copy buff to user if spi transfer if (retries < 20) { if (copy_to_user(buff, str, count)) { ret = -EFAULT; goto out; } } if (unlikely(retries == 20)) { NVT_ERR("error, ret = %d\n", ret); ret = -EIO; goto out; } } else { NVT_ERR("Call error, str[0]=%d\n", str[0]); ret = -EFAULT; goto out; } out: kfree(str); kfree(buf); kzalloc_failed: return ret; } /******************************************************* Description: Novatek touchscreen /proc/NVTSPI open function. return: Executive outcomes. 0---succeed. -12---failed. *******************************************************/ static int32_t nvt_flash_open(struct inode *inode, struct file *file) { struct nvt_flash_data *dev; dev = kmalloc(sizeof(struct nvt_flash_data), GFP_KERNEL); if (dev == NULL) { NVT_ERR("Failed to allocate memory for nvt flash data\n"); return -ENOMEM; } rwlock_init(&dev->lock); file->private_data = dev; return 0; } /******************************************************* Description: Novatek touchscreen /proc/NVTSPI close function. return: Executive outcomes. 0---succeed. *******************************************************/ static int32_t nvt_flash_close(struct inode *inode, struct file *file) { struct nvt_flash_data *dev = file->private_data; if (dev) kfree(dev); return 0; } static const struct file_operations nvt_flash_fops = { .owner = THIS_MODULE, .open = nvt_flash_open, .release = nvt_flash_close, .read = nvt_flash_read, }; /******************************************************* Description: Novatek touchscreen /proc/NVTSPI initial function. return: Executive outcomes. 0---succeed. -12---failed. *******************************************************/ static int32_t nvt_flash_proc_init(void) { NVT_proc_entry = proc_create(DEVICE_NAME, 0444, NULL, &nvt_flash_fops); if (NVT_proc_entry == NULL) { NVT_ERR("Failed!\n"); return -ENOMEM; } else { NVT_LOG("Succeeded!\n"); } NVT_LOG("============================================================\n"); NVT_LOG("Create /proc/%s\n", DEVICE_NAME); NVT_LOG("============================================================\n"); return 0; } /******************************************************* Description: Novatek touchscreen /proc/NVTSPI deinitial function. return: n.a. *******************************************************/ static void nvt_flash_proc_deinit(void) { if (NVT_proc_entry != NULL) { remove_proc_entry(DEVICE_NAME, NULL); NVT_proc_entry = NULL; NVT_LOG("Removed /proc/%s\n", DEVICE_NAME); } } #endif #if WAKEUP_GESTURE #define GESTURE_WORD_C 12 #define GESTURE_WORD_W 13 #define GESTURE_WORD_V 14 #define GESTURE_DOUBLE_CLICK 15 #define GESTURE_WORD_Z 16 #define GESTURE_WORD_M 17 #define GESTURE_WORD_O 18 #define GESTURE_WORD_e 19 #define GESTURE_WORD_S 20 #define GESTURE_SLIDE_UP 21 #define GESTURE_SLIDE_DOWN 22 #define GESTURE_SLIDE_LEFT 23 #define GESTURE_SLIDE_RIGHT 24 /* customized gesture id */ #define DATA_PROTOCOL 30 /* function page definition */ #define FUNCPAGE_GESTURE 1 /******************************************************* Description: Novatek touchscreen wake up gesture key report function. return: n.a. *******************************************************/ void nvt_ts_wakeup_gesture_report(uint8_t gesture_id, uint8_t *data) { uint32_t keycode = 0; uint8_t func_type = data[2]; uint8_t func_id = data[3]; /* support fw specifal data protocol */ if ((gesture_id == DATA_PROTOCOL) && (func_type == FUNCPAGE_GESTURE)) { gesture_id = func_id; } else if (gesture_id > DATA_PROTOCOL) { NVT_ERR("gesture_id %d is invalid, func_type=%d, func_id=%d\n", gesture_id, func_type, func_id); return; } NVT_LOG("gesture_id = %d\n", gesture_id); switch (gesture_id) { case GESTURE_WORD_C: NVT_LOG("Gesture : Word-C.\n"); keycode = gesture_key_array[0]; break; case GESTURE_WORD_W: NVT_LOG("Gesture : Word-W.\n"); keycode = gesture_key_array[1]; break; case GESTURE_WORD_V: NVT_LOG("Gesture : Word-V.\n"); keycode = gesture_key_array[2]; break; case GESTURE_DOUBLE_CLICK: NVT_LOG("Gesture : Double Click.\n"); keycode = gesture_key_array[3]; break; case GESTURE_WORD_Z: NVT_LOG("Gesture : Word-Z.\n"); keycode = gesture_key_array[4]; break; case GESTURE_WORD_M: NVT_LOG("Gesture : Word-M.\n"); keycode = gesture_key_array[5]; break; case GESTURE_WORD_O: NVT_LOG("Gesture : Word-O.\n"); keycode = gesture_key_array[6]; break; case GESTURE_WORD_e: NVT_LOG("Gesture : Word-e.\n"); keycode = gesture_key_array[7]; break; case GESTURE_WORD_S: NVT_LOG("Gesture : Word-S.\n"); keycode = gesture_key_array[8]; break; case GESTURE_SLIDE_UP: NVT_LOG("Gesture : Slide UP.\n"); keycode = gesture_key_array[9]; break; case GESTURE_SLIDE_DOWN: NVT_LOG("Gesture : Slide DOWN.\n"); keycode = gesture_key_array[10]; break; case GESTURE_SLIDE_LEFT: NVT_LOG("Gesture : Slide LEFT.\n"); keycode = gesture_key_array[11]; break; case GESTURE_SLIDE_RIGHT: NVT_LOG("Gesture : Slide RIGHT.\n"); keycode = gesture_key_array[12]; break; default: break; } if (keycode > 0) { input_report_key(ts->input_dev, keycode, 1); input_sync(ts->input_dev); input_report_key(ts->input_dev, keycode, 0); input_sync(ts->input_dev); } } #endif /******************************************************* Description: Novatek touchscreen parse device tree function. return: n.a. *******************************************************/ #ifdef CONFIG_OF static int32_t nvt_parse_dt(struct device *dev) { struct device_node *np = dev->of_node; int32_t ret = 0; #if NVT_TOUCH_SUPPORT_HW_RST ts->reset_gpio = of_get_named_gpio_flags(np, "novatek,reset-gpio", 0, &ts->reset_flags); NVT_LOG("novatek,reset-gpio=%d\n", ts->reset_gpio); #endif ts->irq_gpio = of_get_named_gpio_flags(np, "novatek,irq-gpio", 0, &ts->irq_flags); NVT_LOG("novatek,irq-gpio=%d\n", ts->irq_gpio); ret = of_property_read_u32(np, "novatek,swrst-n8-addr", &SWRST_N8_ADDR); if (ret) { NVT_ERR("error reading novatek,swrst-n8-addr. ret=%d\n", ret); return ret; } else { NVT_LOG("SWRST_N8_ADDR=0x%06X\n", SWRST_N8_ADDR); } ret = of_property_read_u32(np, "novatek,spi-rd-fast-addr", &SPI_RD_FAST_ADDR); if (ret) { NVT_LOG("not support novatek,spi-rd-fast-addr\n"); SPI_RD_FAST_ADDR = 0; ret = 0; } else { NVT_LOG("SPI_RD_FAST_ADDR=0x%06X\n", SPI_RD_FAST_ADDR); } return ret; } #else static int32_t nvt_parse_dt(struct device *dev) { #if NVT_TOUCH_SUPPORT_HW_RST ts->reset_gpio = NVTTOUCH_RST_PIN; #endif ts->irq_gpio = NVTTOUCH_INT_PIN; return 0; } #endif /******************************************************* Description: Novatek touchscreen config and request gpio return: Executive outcomes. 0---succeed. not 0---failed. *******************************************************/ static int nvt_gpio_config(struct nvt_ts_data *ts) { int32_t ret = 0; #if NVT_TOUCH_SUPPORT_HW_RST /* request RST-pin (Output/High) */ if (gpio_is_valid(ts->reset_gpio)) { ret = gpio_request_one(ts->reset_gpio, GPIOF_OUT_INIT_LOW, "NVT-tp-rst"); if (ret) { NVT_ERR("Failed to request NVT-tp-rst GPIO\n"); goto err_request_reset_gpio; } } #endif /* request INT-pin (Input) */ if (gpio_is_valid(ts->irq_gpio)) { ret = gpio_request_one(ts->irq_gpio, GPIOF_IN, "NVT-int"); if (ret) { NVT_ERR("Failed to request NVT-int GPIO\n"); goto err_request_irq_gpio; } } return ret; err_request_irq_gpio: #if NVT_TOUCH_SUPPORT_HW_RST gpio_free(ts->reset_gpio); err_request_reset_gpio: #endif return ret; } /******************************************************* Description: Novatek touchscreen deconfig gpio return: n.a. *******************************************************/ static void nvt_gpio_deconfig(struct nvt_ts_data *ts) { if (gpio_is_valid(ts->irq_gpio)) gpio_free(ts->irq_gpio); #if NVT_TOUCH_SUPPORT_HW_RST if (gpio_is_valid(ts->reset_gpio)) gpio_free(ts->reset_gpio); #endif } static uint8_t nvt_fw_recovery(uint8_t *point_data) { uint8_t i = 0; uint8_t detected = true; /* check pattern */ for (i = 1; i < 7; i++) { if (point_data[i] != 0x77) { detected = false; break; } } return detected; } #if NVT_TOUCH_ESD_PROTECT void nvt_esd_check_enable(uint8_t enable) { /* update interrupt timer */ irq_timer = jiffies; /* clear esd_retry counter, if protect function is enabled */ esd_retry = enable ? 0 : esd_retry; /* enable/disable esd check flag */ esd_check = enable; } static void nvt_esd_check_func(struct work_struct *work) { unsigned int timer = jiffies_to_msecs(jiffies - irq_timer); //NVT_LOG("esd_check = %d (retry %d)\n", esd_check, esd_retry); //DEBUG if ((timer > NVT_TOUCH_ESD_CHECK_PERIOD) && esd_check) { mutex_lock(&ts->lock); NVT_ERR("do ESD recovery, timer = %d, retry = %d\n", timer, esd_retry); /* do esd recovery, reload fw */ nvt_update_firmware(BOOT_UPDATE_FIRMWARE_NAME); mutex_unlock(&ts->lock); /* update interrupt timer */ irq_timer = jiffies; /* update esd_retry counter */ esd_retry++; } queue_delayed_work(nvt_esd_check_wq, &nvt_esd_check_work, msecs_to_jiffies(NVT_TOUCH_ESD_CHECK_PERIOD)); } #endif /* #if NVT_TOUCH_ESD_PROTECT */ #if NVT_TOUCH_WDT_RECOVERY static uint8_t recovery_cnt; static uint8_t nvt_wdt_fw_recovery(uint8_t *point_data) { uint32_t recovery_cnt_max = 10; uint8_t recovery_enable = false; uint8_t i = 0; recovery_cnt++; /* check pattern */ for (i = 1; i < 7; i++) { if ((point_data[i] != 0xFD) && (point_data[i] != 0xFE)) { recovery_cnt = 0; break; } } if (recovery_cnt > recovery_cnt_max) { recovery_enable = true; recovery_cnt = 0; } return recovery_enable; } #endif /* #if NVT_TOUCH_WDT_RECOVERY */ #if POINT_DATA_CHECKSUM static int32_t nvt_ts_point_data_checksum(uint8_t *buf, uint8_t length) { uint8_t checksum = 0; int32_t i = 0; // Generate checksum for (i = 0; i < length - 1; i++) { checksum += buf[i + 1]; } checksum = (~checksum + 1); // Compare ckecksum and dump fail data if (checksum != buf[length]) { NVT_ERR ("i2c/spi packet checksum not match. (point_data[%d]=0x%02X, checksum=0x%02X)\n", length, buf[length], checksum); for (i = 0; i < 10; i++) { NVT_LOG("%02X %02X %02X %02X %02X %02X\n", buf[1 + i * 6], buf[2 + i * 6], buf[3 + i * 6], buf[4 + i * 6], buf[5 + i * 6], buf[6 + i * 6]); } NVT_LOG("%02X %02X %02X %02X %02X\n", buf[61], buf[62], buf[63], buf[64], buf[65]); return -1; } return 0; } #endif /* POINT_DATA_CHECKSUM */ #define POINT_DATA_LEN 65 /******************************************************* Description: Novatek touchscreen work function. return: n.a. *******************************************************/ static irqreturn_t nvt_ts_work_func(int irq, void *data) { int32_t ret = -1; uint8_t point_data[POINT_DATA_LEN + 1 + DUMMY_BYTES] = { 0 }; uint32_t position = 0; uint32_t input_x = 0; uint32_t input_y = 0; uint32_t input_w = 0; uint32_t input_p = 0; uint8_t input_id = 0; #if MT_PROTOCOL_B uint8_t press_id[TOUCH_MAX_FINGER_NUM] = { 0 }; #endif /* MT_PROTOCOL_B */ int32_t i = 0; int32_t finger_cnt = 0; #if WAKEUP_GESTURE if (bTouchIsAwake == 0) { pm_wakeup_event(&ts->input_dev->dev, 5000); } #endif mutex_lock(&ts->lock); ret = CTP_SPI_READ(ts->client, point_data, POINT_DATA_LEN + 1); if (ret < 0) { NVT_ERR("CTP_SPI_READ failed.(%d)\n", ret); goto XFER_ERROR; } #if NVT_TOUCH_WDT_RECOVERY /* ESD protect by WDT */ if (nvt_wdt_fw_recovery(point_data)) { NVT_ERR("Recover for fw reset, %02X\n", point_data[1]); nvt_update_firmware(BOOT_UPDATE_FIRMWARE_NAME); goto XFER_ERROR; } #endif /* #if NVT_TOUCH_WDT_RECOVERY */ /* ESD protect by FW handshake */ if (nvt_fw_recovery(point_data)) { #if NVT_TOUCH_ESD_PROTECT nvt_esd_check_enable(true); #endif /* #if NVT_TOUCH_ESD_PROTECT */ goto XFER_ERROR; } #if POINT_DATA_CHECKSUM if (POINT_DATA_LEN >= POINT_DATA_CHECKSUM_LEN) { ret = nvt_ts_point_data_checksum(point_data, POINT_DATA_CHECKSUM_LEN); if (ret) { goto XFER_ERROR; } } #endif /* POINT_DATA_CHECKSUM */ #if WAKEUP_GESTURE if (bTouchIsAwake == 0) { input_id = (uint8_t) (point_data[1] >> 3); nvt_ts_wakeup_gesture_report(input_id, point_data); mutex_unlock(&ts->lock); return IRQ_HANDLED; } #endif finger_cnt = 0; for (i = 0; i < ts->max_touch_num; i++) { position = 1 + 6 * i; input_id = (uint8_t) (point_data[position + 0] >> 3); if ((input_id == 0) || (input_id > ts->max_touch_num)) continue; if (((point_data[position] & 0x07) == 0x01) || ((point_data[position] & 0x07) == 0x02)) { //finger down (enter & moving) #if NVT_TOUCH_ESD_PROTECT /* update interrupt timer */ irq_timer = jiffies; #endif /* #if NVT_TOUCH_ESD_PROTECT */ input_x = (uint32_t) (point_data[position + 1] << 4) + (uint32_t) (point_data[position + 3] >> 4); input_y = (uint32_t) (point_data[position + 2] << 4) + (uint32_t) (point_data[position + 3] & 0x0F); if ((input_x < 0) || (input_y < 0)) continue; if ((input_x > ts->abs_x_max) || (input_y > ts->abs_y_max)) continue; input_w = (uint32_t) (point_data[position + 4]); if (input_w == 0) input_w = 1; if (i < 2) { input_p = (uint32_t) (point_data[position + 5]) + (uint32_t) (point_data[i + 63] << 8); if (input_p > TOUCH_FORCE_NUM) input_p = TOUCH_FORCE_NUM; } else { input_p = (uint32_t) (point_data[position + 5]); } if (input_p == 0) input_p = 1; #if MT_PROTOCOL_B press_id[input_id - 1] = 1; input_mt_slot(ts->input_dev, input_id - 1); input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true); #else /* MT_PROTOCOL_B */ input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, input_id - 1); input_report_key(ts->input_dev, BTN_TOUCH, 1); #endif /* MT_PROTOCOL_B */ input_report_abs(ts->input_dev, ABS_MT_POSITION_X, input_x); input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, input_y); input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w); input_report_abs(ts->input_dev, ABS_MT_PRESSURE, input_p); #if MT_PROTOCOL_B #else /* MT_PROTOCOL_B */ input_mt_sync(ts->input_dev); #endif /* MT_PROTOCOL_B */ finger_cnt++; } } #if MT_PROTOCOL_B for (i = 0; i < ts->max_touch_num; i++) { if (press_id[i] != 1) { input_mt_slot(ts->input_dev, i); input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0); input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0); input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false); } } input_report_key(ts->input_dev, BTN_TOUCH, (finger_cnt > 0)); #else /* MT_PROTOCOL_B */ if (finger_cnt == 0) { input_report_key(ts->input_dev, BTN_TOUCH, 0); input_mt_sync(ts->input_dev); } #endif /* MT_PROTOCOL_B */ #if TOUCH_KEY_NUM > 0 if (point_data[61] == 0xF8) { #if NVT_TOUCH_ESD_PROTECT /* update interrupt timer */ irq_timer = jiffies; #endif /* #if NVT_TOUCH_ESD_PROTECT */ for (i = 0; i < ts->max_button_num; i++) { input_report_key(ts->input_dev, touch_key_array[i], ((point_data[62] >> i) & 0x01)); } } else { for (i = 0; i < ts->max_button_num; i++) { input_report_key(ts->input_dev, touch_key_array[i], 0); } } #endif input_sync(ts->input_dev); XFER_ERROR: mutex_unlock(&ts->lock); return IRQ_HANDLED; } /******************************************************* Description: Novatek touchscreen check chip version trim function. return: Executive outcomes. 0---NVT IC. -1---not NVT IC. *******************************************************/ static int8_t nvt_ts_check_chip_ver_trim(void) { uint8_t buf[8] = { 0 }; int32_t retry = 0; int32_t list = 0; int32_t i = 0; int32_t found_nvt_chip = 0; int32_t ret = -1; //---Check for 5 times--- for (retry = 5; retry > 0; retry--) { nvt_bootloader_reset(); //---set xdata index to 0x1F600--- nvt_set_page(0x1F64E); buf[0] = 0x4E; buf[1] = 0x00; buf[2] = 0x00; buf[3] = 0x00; buf[4] = 0x00; buf[5] = 0x00; buf[6] = 0x00; CTP_SPI_READ(ts->client, buf, 7); NVT_LOG ("buf[1]=0x%02X, buf[2]=0x%02X, buf[3]=0x%02X, buf[4]=0x%02X, buf[5]=0x%02X, buf[6]=0x%02X\n", buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); // compare read chip id on supported list for (list = 0; list < (sizeof(trim_id_table) / sizeof(struct nvt_ts_trim_id_table)); list++) { found_nvt_chip = 0; // compare each byte for (i = 0; i < NVT_ID_BYTE_MAX; i++) { if (trim_id_table[list].mask[i]) { if (buf[i + 1] != trim_id_table[list].id[i]) break; } } if (i == NVT_ID_BYTE_MAX) { found_nvt_chip = 1; } if (found_nvt_chip) { NVT_LOG("This is NVT touch IC\n"); ts->mmap = trim_id_table[list].mmap; ts->carrier_system = trim_id_table[list].hwinfo->carrier_system; ts->hw_crc = trim_id_table[list].hwinfo->hw_crc; ret = 0; goto out; } else { ts->mmap = NULL; ret = -1; } } msleep(10); } out: return ret; } #ifdef CONFIG_DRM_MEDIATEK static int nvt_tp_power_on_reinit(void) { int32_t ret; pr_info("%s is called\n", __func__); /* do esd recovery, bootloader reset */ ret = nvt_ts_suspend(&ts->client->dev); if (ret) { pr_info("%s is called suspend %d\n", __func__, ret); return ret; } ret = nvt_ts_resume(&ts->client->dev); if (ret) pr_info("%s is called resume %d\n", __func__, ret); return ret; } #endif /******************************************************* Description: Novatek touchscreen driver probe function. return: Executive outcomes. 0---succeed. negative---failed *******************************************************/ struct tag_videolfb { u64 fb_base; u32 islcmfound; u32 fps; u32 vram; char lcmname[1]; }; static int32_t nvt_ts_probe(struct spi_device *client) { int32_t ret = 0; struct device_node *lcm_name; struct tag_videolfb *videolfb_tag = NULL; unsigned long size = 0; char firmware_name_jdi[] = "novatek_ts_fw_jdi.bin"; char firmware_name_tm[] = "novatek_ts_fw_tm.bin"; char firmware_name[] = "novatek_ts_fw.bin"; #if ((TOUCH_KEY_NUM > 0) || WAKEUP_GESTURE) int32_t retry = 0; #endif #ifdef CONFIG_DRM_MEDIATEK void **retval = NULL; #endif NVT_LOG("start\n"); ts = kmalloc(sizeof(struct nvt_ts_data), GFP_KERNEL); if (ts == NULL) { NVT_ERR("failed to allocated memory for nvt ts data\n"); return -ENOMEM; } ts->xbuf = (uint8_t *) kzalloc((NVT_TRANSFER_LEN + 1), GFP_KERNEL); if (ts->xbuf == NULL) { NVT_ERR("kzalloc for xbuf failed!\n"); if (ts) { kfree(ts); ts = NULL; } return -ENOMEM; } ts->client = client; spi_set_drvdata(client, ts); //---prepare for spi parameter--- if (ts->client->master->flags & SPI_MASTER_HALF_DUPLEX) { NVT_ERR("Full duplex not supported by master\n"); ret = -EIO; goto err_ckeck_full_duplex; } ts->client->bits_per_word = 8; ts->client->mode = SPI_MODE_0; ret = spi_setup(ts->client); if (ret < 0) { NVT_ERR("Failed to perform SPI setup\n"); goto err_spi_setup; } #ifdef CONFIG_MTK_SPI /* old usage of MTK spi API */ memcpy(&ts->spi_ctrl, &spi_ctrdata, sizeof(struct mt_chip_conf)); ts->client->controller_data = (void *)&ts->spi_ctrl; #endif #ifdef CONFIG_SPI_MT65XX /* new usage of MTK spi API */ memcpy(&ts->spi_ctrl, &spi_ctrdata, sizeof(struct mtk_chip_config)); ts->client->controller_data = (void *)&ts->spi_ctrl; #endif NVT_LOG("mode=%d, max_speed_hz=%d\n", ts->client->mode, ts->client->max_speed_hz); //---parse dts--- ret = nvt_parse_dt(&client->dev); if (ret) { NVT_ERR("parse dt error\n"); goto err_spi_setup; } //---request and config GPIOs--- ret = nvt_gpio_config(ts); if (ret) { NVT_ERR("gpio config error!\n"); goto err_gpio_config_failed; } /* get pinctrl handler from of node */ nt36672_pinctrl = devm_pinctrl_get( ts->client->controller->dev.parent); if (IS_ERR_OR_NULL(nt36672_pinctrl)) { NVT_ERR("Failed to get pinctrl handler[need confirm]"); nt36672_pinctrl = NULL; goto err_gpio_config_failed; } /* default spi mode */ nt36672_spi_mode_default = pinctrl_lookup_state( nt36672_pinctrl, PINCTRL_STATE_SPI_DEFAULT); if (IS_ERR_OR_NULL(nt36672_spi_mode_default)) { ret = PTR_ERR(nt36672_spi_mode_default); NVT_ERR("Failed to get pinctrl state:%s, r:%d", PINCTRL_STATE_SPI_DEFAULT, ret); nt36672_spi_mode_default = NULL; goto err_pinctrl_failed; } ret = pinctrl_select_state(nt36672_pinctrl, nt36672_spi_mode_default); if (ret < 0) NVT_ERR("Failed to select default pinstate, r:%d", ret); mutex_init(&ts->lock); mutex_init(&ts->xbuf_lock); //---eng reset before TP_RESX high nvt_eng_reset(); #if NVT_TOUCH_SUPPORT_HW_RST gpio_set_value(ts->reset_gpio, 1); #endif // need 10ms delay after POR(power on reset) msleep(10); //---check chip version trim--- ret = nvt_ts_check_chip_ver_trim(); if (ret) { NVT_ERR("chip is not identified\n"); ret = -EINVAL; goto err_chipvertrim_failed; } ts->abs_x_max = TOUCH_DEFAULT_MAX_WIDTH; ts->abs_y_max = TOUCH_DEFAULT_MAX_HEIGHT; //---allocate input device--- ts->input_dev = input_allocate_device(); if (ts->input_dev == NULL) { NVT_ERR("allocate input device failed\n"); ret = -ENOMEM; goto err_input_dev_alloc_failed; } ts->max_touch_num = TOUCH_MAX_FINGER_NUM; #if TOUCH_KEY_NUM > 0 ts->max_button_num = TOUCH_KEY_NUM; #endif ts->int_trigger_type = INT_TRIGGER_TYPE; //---set input device info.--- ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); ts->input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); ts->input_dev->propbit[0] = BIT(INPUT_PROP_DIRECT); #if MT_PROTOCOL_B input_mt_init_slots(ts->input_dev, ts->max_touch_num, 0); #endif input_set_abs_params(ts->input_dev, ABS_MT_PRESSURE, 0, TOUCH_FORCE_NUM, 0, 0); //pressure = TOUCH_FORCE_NUM #if TOUCH_MAX_FINGER_NUM > 1 input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); //area = 255 input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, ts->abs_x_max, 0, 0); input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, ts->abs_y_max, 0, 0); #if MT_PROTOCOL_B // no need to set ABS_MT_TRACKING_ID, input_mt_init_slots() already set it #else input_set_abs_params(ts->input_dev, ABS_MT_TRACKING_ID, 0, ts->max_touch_num, 0, 0); #endif //MT_PROTOCOL_B #endif //TOUCH_MAX_FINGER_NUM > 1 #if TOUCH_KEY_NUM > 0 for (retry = 0; retry < ts->max_button_num; retry++) { input_set_capability(ts->input_dev, EV_KEY, touch_key_array[retry]); } #endif #if WAKEUP_GESTURE for (retry = 0; retry < (sizeof(gesture_key_array) / sizeof(gesture_key_array[0])); retry++) { input_set_capability(ts->input_dev, EV_KEY, gesture_key_array[retry]); } #endif sprintf(ts->phys, "input/ts"); ts->input_dev->name = NVT_TS_NAME; ts->input_dev->phys = ts->phys; ts->input_dev->id.bustype = BUS_SPI; //---register input device--- ret = input_register_device(ts->input_dev); if (ret) { NVT_ERR("register input device (%s) failed. ret=%d\n", ts->input_dev->name, ret); goto err_input_register_device_failed; } //---set int-pin & request irq--- client->irq = gpio_to_irq(ts->irq_gpio); if (client->irq) { NVT_LOG("int_trigger_type=%d\n", ts->int_trigger_type); ts->irq_enabled = true; ret = request_threaded_irq(client->irq, NULL, nvt_ts_work_func, ts->int_trigger_type | IRQF_ONESHOT, NVT_SPI_NAME, ts); if (ret != 0) { NVT_ERR("request irq failed. ret=%d\n", ret); goto err_int_request_failed; } else { nvt_irq_enable(false); NVT_LOG("request irq %d succeed\n", client->irq); } } #if WAKEUP_GESTURE device_init_wakeup(&ts->input_dev->dev, 1); #endif #if BOOT_UPDATE_FIRMWARE NVT_LOG("start to parse lcm name\n"); lcm_name = of_find_node_by_path("/chosen"); if (lcm_name) { videolfb_tag = (struct tag_videolfb *) of_get_property(lcm_name, "atag,videolfb", (int *)&size); if (!videolfb_tag) NVT_ERR("Invalid lcm name\n"); NVT_LOG("read lcm name : %s\n", videolfb_tag->lcmname); #if defined(CONFIG_TOUCH_FW_MP_ONE) if (strcmp("nt36672c_fhdp_dsi_vdo_auo_cphy_90hz_jdi_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_auo_cphy_90hz_jdi_hfp_lcm_drv", videolfb_tag->lcmname) == 0) strncpy(novatek_firmware, firmware_name_jdi, sizeof(firmware_name_jdi)); else if (strcmp("nt36672c_fhdp_dsi_vdo_auo_cphy_90hz_tianma_lcm_drv", videolfb_tag->lcmname) == 0) strncpy(novatek_firmware, firmware_name_tm, sizeof(firmware_name_tm)); else if (strcmp("nt36672c_fhdp_dsi_vdo_120hz_shenchao_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_90hz_shenchao_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_60hz_shenchao_lcm_drv", videolfb_tag->lcmname) == 0) strncpy(novatek_firmware, firmware_name, sizeof(firmware_name)); else strncpy(novatek_firmware, firmware_name, sizeof(firmware_name)); #else if (strcmp("nt36672c_fhdp_dsi_vdo_90hz_jdi_rt4801_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_cphy_90hz_jdi_rt4801_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_cphy_90hz_jdi_rt4801_hfp_lcm_drv", videolfb_tag->lcmname) == 0) strncpy(novatek_firmware, firmware_name_jdi, sizeof(firmware_name_jdi)); else if (strcmp("nt36672c_fhdp_dsi_vdo_cphy_90hz_tianma_rt4801_lcm_drv", videolfb_tag->lcmname) == 0 || strcmp("nt36672c_fhdp_dsi_vdo_cphy_90hz_tianma_rt4801_hfp_lcm_drv", videolfb_tag->lcmname) == 0) strncpy(novatek_firmware, firmware_name_tm, sizeof(firmware_name_tm)); else strncpy(novatek_firmware, firmware_name, sizeof(firmware_name)); #endif NVT_LOG("nt36672c touch fw name : %s", BOOT_UPDATE_FIRMWARE_NAME); } else NVT_ERR("Can't find node: chose in dts"); nvt_fwu_worker = kthread_create_worker(0, "nvt_fwu_worker"); if (!nvt_fwu_worker) { NVT_ERR("nvt_fwu_worker create kthread failed\n"); ret = -ENOMEM; goto err_create_nvt_fwu_wq_failed; } kthread_init_delayed_work(&ts->nvt_fwu_dw, Boot_Update_Firmware); kthread_queue_delayed_work(nvt_fwu_worker, &ts->nvt_fwu_dw, msecs_to_jiffies(14000)); NVT_LOG("start kthread_queue_delayed_work nt36672c\n"); #endif NVT_LOG("NVT_TOUCH_ESD_PROTECT is %d\n", NVT_TOUCH_ESD_PROTECT); #if NVT_TOUCH_ESD_PROTECT INIT_DELAYED_WORK(&nvt_esd_check_work, nvt_esd_check_func); nvt_esd_check_wq = alloc_workqueue("nvt_esd_check_wq", WQ_MEM_RECLAIM, 1); if (!nvt_esd_check_wq) { NVT_ERR("nvt_esd_check_wq create workqueue failed\n"); ret = -ENOMEM; goto err_create_nvt_esd_check_wq_failed; } queue_delayed_work(nvt_esd_check_wq, &nvt_esd_check_work, msecs_to_jiffies(NVT_TOUCH_ESD_CHECK_PERIOD)); #endif /* #if NVT_TOUCH_ESD_PROTECT */ //---set device node--- #if NVT_TOUCH_PROC ret = nvt_flash_proc_init(); if (ret != 0) { NVT_ERR("nvt flash proc init failed. ret=%d\n", ret); goto err_flash_proc_init_failed; } #endif #if NVT_TOUCH_EXT_PROC ret = nvt_extra_proc_init(); if (ret != 0) { NVT_ERR("nvt extra proc init failed. ret=%d\n", ret); goto err_extra_proc_init_failed; } #endif #if NVT_TOUCH_MP ret = nvt_mp_proc_init(); if (ret != 0) { NVT_ERR("nvt mp proc init failed. ret=%d\n", ret); goto err_mp_proc_init_failed; } #endif #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ ts->drm_notif.notifier_call = nvt_drm_notifier_callback; ret = msm_drm_register_client(&ts->drm_notif); if (ret) { NVT_ERR("register drm_notifier failed. ret=%d\n", ret); goto err_register_drm_notif_failed; } #else ts->fb_notif.notifier_call = nvt_fb_notifier_callback; ret = fb_register_client(&ts->fb_notif); if (ret) { NVT_ERR("register fb_notifier failed. ret=%d\n", ret); goto err_register_fb_notif_failed; } #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1; ts->early_suspend.suspend = nvt_ts_early_suspend; ts->early_suspend.resume = nvt_ts_late_resume; ret = register_early_suspend(&ts->early_suspend); if (ret) { NVT_ERR("register early suspend failed. ret=%d\n", ret); goto err_register_early_suspend_failed; } #endif bTouchIsAwake = 1; NVT_LOG("end\n"); #ifdef CONFIG_DRM_MEDIATEK pr_info("%s, disp notifier register func!\n", __func__); if (mtk_panel_tch_handle_init()) { retval = mtk_panel_tch_handle_init(); *retval = (void *)nvt_tp_power_on_reinit; } #endif nvt_irq_enable(true); return 0; #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ if (msm_drm_unregister_client(&ts->drm_notif)) NVT_ERR("Error occurred while unregistering drm_notifier.\n"); err_register_drm_notif_failed: #else if (fb_unregister_client(&ts->fb_notif)) NVT_ERR("Error occurred while unregistering fb_notifier.\n"); err_register_fb_notif_failed: #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) unregister_early_suspend(&ts->early_suspend); err_register_early_suspend_failed: #endif #if NVT_TOUCH_MP nvt_mp_proc_deinit(); err_mp_proc_init_failed: #endif #if NVT_TOUCH_EXT_PROC nvt_extra_proc_deinit(); err_extra_proc_init_failed: #endif #if NVT_TOUCH_PROC nvt_flash_proc_deinit(); err_flash_proc_init_failed: #endif #if NVT_TOUCH_ESD_PROTECT if (nvt_esd_check_wq) { cancel_delayed_work_sync(&nvt_esd_check_work); destroy_workqueue(nvt_esd_check_wq); nvt_esd_check_wq = NULL; } err_create_nvt_esd_check_wq_failed: #endif #if BOOT_UPDATE_FIRMWARE if (nvt_fwu_worker) { kthread_cancel_delayed_work_sync(&ts->nvt_fwu_dw); kthread_destroy_worker(nvt_fwu_worker); NVT_LOG("kthread_destroy_worker err_create nt36672c\n"); nvt_fwu_worker = NULL; } err_create_nvt_fwu_wq_failed: #endif #if WAKEUP_GESTURE device_init_wakeup(&ts->input_dev->dev, 0); #endif free_irq(client->irq, ts); err_int_request_failed: input_unregister_device(ts->input_dev); ts->input_dev = NULL; err_input_register_device_failed: if (ts->input_dev) { input_free_device(ts->input_dev); ts->input_dev = NULL; } err_input_dev_alloc_failed: err_chipvertrim_failed: mutex_destroy(&ts->xbuf_lock); mutex_destroy(&ts->lock); nvt_gpio_deconfig(ts); err_gpio_config_failed: err_pinctrl_failed: pinctrl_put(nt36672_pinctrl); nt36672_pinctrl = NULL; err_spi_setup: err_ckeck_full_duplex: spi_set_drvdata(client, NULL); if (ts) { kfree(ts); ts = NULL; } return ret; } /******************************************************* Description: Novatek touchscreen driver release function. return: Executive outcomes. 0---succeed. *******************************************************/ static int32_t nvt_ts_remove(struct spi_device *client) { NVT_LOG("Removing driver...\n"); #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ if (msm_drm_unregister_client(&ts->drm_notif)) NVT_ERR("Error occurred while unregistering drm_notifier.\n"); #else if (fb_unregister_client(&ts->fb_notif)) NVT_ERR("Error occurred while unregistering fb_notifier.\n"); #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) unregister_early_suspend(&ts->early_suspend); #endif #if NVT_TOUCH_MP nvt_mp_proc_deinit(); #endif #if NVT_TOUCH_EXT_PROC nvt_extra_proc_deinit(); #endif #if NVT_TOUCH_PROC nvt_flash_proc_deinit(); #endif #if NVT_TOUCH_ESD_PROTECT if (nvt_esd_check_wq) { cancel_delayed_work_sync(&nvt_esd_check_work); nvt_esd_check_enable(false); destroy_workqueue(nvt_esd_check_wq); nvt_esd_check_wq = NULL; } #endif #if BOOT_UPDATE_FIRMWARE if (nvt_fwu_worker) { kthread_cancel_delayed_work_sync(&ts->nvt_fwu_dw); kthread_destroy_worker(nvt_fwu_worker); NVT_LOG("kthread_destroy_worker remove nt36672c\n"); nvt_fwu_worker = NULL; } #endif #if WAKEUP_GESTURE device_init_wakeup(&ts->input_dev->dev, 0); #endif nvt_irq_enable(false); free_irq(client->irq, ts); mutex_destroy(&ts->xbuf_lock); mutex_destroy(&ts->lock); nvt_gpio_deconfig(ts); if (ts->input_dev) { input_unregister_device(ts->input_dev); ts->input_dev = NULL; } spi_set_drvdata(client, NULL); if (ts) { kfree(ts); ts = NULL; } return 0; } static void nvt_ts_shutdown(struct spi_device *client) { NVT_LOG("Shutdown driver...\n"); nvt_irq_enable(false); #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ if (msm_drm_unregister_client(&ts->drm_notif)) NVT_ERR("Error occurred while unregistering drm_notifier.\n"); #else if (fb_unregister_client(&ts->fb_notif)) NVT_ERR("Error occurred while unregistering fb_notifier.\n"); #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) unregister_early_suspend(&ts->early_suspend); #endif #if NVT_TOUCH_MP nvt_mp_proc_deinit(); #endif #if NVT_TOUCH_EXT_PROC nvt_extra_proc_deinit(); #endif #if NVT_TOUCH_PROC nvt_flash_proc_deinit(); #endif #if NVT_TOUCH_ESD_PROTECT if (nvt_esd_check_wq) { cancel_delayed_work_sync(&nvt_esd_check_work); nvt_esd_check_enable(false); destroy_workqueue(nvt_esd_check_wq); nvt_esd_check_wq = NULL; } #endif /* #if NVT_TOUCH_ESD_PROTECT */ #if BOOT_UPDATE_FIRMWARE if (nvt_fwu_worker) { kthread_cancel_delayed_work_sync(&ts->nvt_fwu_dw); kthread_destroy_worker(nvt_fwu_worker); NVT_LOG("kthread_destroy_worker shutdown nt36672c\n"); nvt_fwu_worker = NULL; } #endif #if WAKEUP_GESTURE device_init_wakeup(&ts->input_dev->dev, 0); #endif } /******************************************************* Description: Novatek touchscreen driver suspend function. return: Executive outcomes. 0---succeed. *******************************************************/ static int32_t nvt_ts_suspend(struct device *dev) { uint8_t buf[4] = { 0 }; #if MT_PROTOCOL_B uint32_t i = 0; #endif if (!bTouchIsAwake) { NVT_LOG("Touch is already suspend\n"); return 0; } #if !WAKEUP_GESTURE nvt_irq_enable(false); #endif #if NVT_TOUCH_ESD_PROTECT NVT_LOG("cancel delayed work sync\n"); cancel_delayed_work_sync(&nvt_esd_check_work); nvt_esd_check_enable(false); #endif /* #if NVT_TOUCH_ESD_PROTECT */ mutex_lock(&ts->lock); NVT_LOG("start\n"); bTouchIsAwake = 0; #if WAKEUP_GESTURE //---write command to enter "wakeup gesture mode"--- buf[0] = EVENT_MAP_HOST_CMD; buf[1] = 0x13; CTP_SPI_WRITE(ts->client, buf, 2); enable_irq_wake(ts->client->irq); NVT_LOG("Enabled touch wakeup gesture\n"); #else // WAKEUP_GESTURE //---write command to enter "deep sleep mode"--- buf[0] = EVENT_MAP_HOST_CMD; buf[1] = 0x11; CTP_SPI_WRITE(ts->client, buf, 2); #endif // WAKEUP_GESTURE mutex_unlock(&ts->lock); /* release all touches */ #if MT_PROTOCOL_B for (i = 0; i < ts->max_touch_num; i++) { input_mt_slot(ts->input_dev, i); input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0); input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0); input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 0); } #endif input_report_key(ts->input_dev, BTN_TOUCH, 0); #if !MT_PROTOCOL_B input_mt_sync(ts->input_dev); #endif input_sync(ts->input_dev); msleep(50); NVT_LOG("end\n"); return 0; } /******************************************************* Description: Novatek touchscreen driver resume function. return: Executive outcomes. 0---succeed. *******************************************************/ static int32_t nvt_ts_resume(struct device *dev) { if (bTouchIsAwake) { NVT_LOG("Touch is already resume\n"); return 0; } mutex_lock(&ts->lock); NVT_LOG("start\n"); // please make sure display reset(RESX) sequence and mipi dsi cmds sent before this #if NVT_TOUCH_SUPPORT_HW_RST gpio_set_value(ts->reset_gpio, 1); #endif if (nvt_update_firmware(BOOT_UPDATE_FIRMWARE_NAME)) { NVT_ERR("download firmware failed, ignore check fw state\n"); } else { nvt_check_fw_reset_state(RESET_STATE_REK); } #if !WAKEUP_GESTURE nvt_irq_enable(true); #endif #if NVT_TOUCH_ESD_PROTECT nvt_esd_check_enable(false); queue_delayed_work(nvt_esd_check_wq, &nvt_esd_check_work, msecs_to_jiffies(NVT_TOUCH_ESD_CHECK_PERIOD)); #endif /* #if NVT_TOUCH_ESD_PROTECT */ bTouchIsAwake = 1; mutex_unlock(&ts->lock); NVT_LOG("end\n"); return 0; } #if defined(CONFIG_FB) #ifdef _MSM_DRM_NOTIFY_H_ static int nvt_drm_notifier_callback(struct notifier_block *self, unsigned long event, void *data) { struct msm_drm_notifier *evdata = data; int *blank; struct nvt_ts_data *ts = container_of(self, struct nvt_ts_data, drm_notif); if (!evdata || (evdata->id != 0)) return 0; if (evdata->data && ts) { blank = evdata->data; if (event == MSM_DRM_EARLY_EVENT_BLANK) { if (*blank == MSM_DRM_BLANK_POWERDOWN) { NVT_LOG("event=%lu, *blank=%d\n", event, *blank); nvt_ts_suspend(&ts->client->dev); } } else if (event == MSM_DRM_EVENT_BLANK) { if (*blank == MSM_DRM_BLANK_UNBLANK) { NVT_LOG("event=%lu, *blank=%d\n", event, *blank); nvt_ts_resume(&ts->client->dev); } } } return 0; } #else static int nvt_fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data) { struct fb_event *evdata = data; int *blank; struct nvt_ts_data *ts = container_of(self, struct nvt_ts_data, fb_notif); if (evdata && evdata->data && event == FB_EARLY_EVENT_BLANK) { blank = evdata->data; if (*blank == FB_BLANK_POWERDOWN) { NVT_LOG("event=%lu, *blank=%d\n", event, *blank); nvt_ts_suspend(&ts->client->dev); } } else if (evdata && evdata->data && event == FB_EVENT_BLANK) { blank = evdata->data; if (*blank == FB_BLANK_UNBLANK) { NVT_LOG("event=%lu, *blank=%d\n", event, *blank); nvt_ts_resume(&ts->client->dev); } } return 0; } #endif #elif defined(CONFIG_HAS_EARLYSUSPEND) /******************************************************* Description: Novatek touchscreen driver early suspend function. return: n.a. *******************************************************/ static void nvt_ts_early_suspend(struct early_suspend *h) { nvt_ts_suspend(ts->client, PMSG_SUSPEND); } /******************************************************* Description: Novatek touchscreen driver late resume function. return: n.a. *******************************************************/ static void nvt_ts_late_resume(struct early_suspend *h) { nvt_ts_resume(ts->client); } #endif static const struct spi_device_id nvt_ts_id[] = { {NVT_SPI_NAME, 0}, {} }; #ifdef CONFIG_OF static const struct of_device_id nvt_match_table[] = { {.compatible = "novatek,NVT-ts-spi",}, {}, }; #endif static struct spi_driver nvt_spi_driver = { .probe = nvt_ts_probe, .remove = nvt_ts_remove, .shutdown = nvt_ts_shutdown, .id_table = nvt_ts_id, .driver = { .name = NVT_SPI_NAME, .owner = THIS_MODULE, #ifdef CONFIG_OF .of_match_table = nvt_match_table, #endif }, }; /******************************************************* Description: Driver Install function. return: Executive Outcomes. 0---succeed. not 0---failed. ********************************************************/ static int32_t __init nvt_driver_init(void) { int32_t ret = 0; NVT_LOG("start\n"); //---add spi driver--- ret = spi_register_driver(&nvt_spi_driver); if (ret) { NVT_ERR("failed to add spi driver"); goto err_driver; } NVT_LOG("finished\n"); err_driver: return ret; } /******************************************************* Description: Driver uninstall function. return: n.a. ********************************************************/ static void __exit nvt_driver_exit(void) { spi_unregister_driver(&nvt_spi_driver); } //late_initcall(nvt_driver_init); module_init(nvt_driver_init); module_exit(nvt_driver_exit); MODULE_DESCRIPTION("Novatek Touchscreen Driver"); MODULE_LICENSE("GPL");