| /* |
| * Synaptics RMI4 touchscreen driver |
| * |
| * Copyright (C) 2012 Synaptics Incorporated |
| * |
| * Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com> |
| * Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/i2c.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| #include <linux/input.h> |
| #include <linux/firmware.h> |
| #include <linux/input/synaptics_dsx.h> |
| #include "synaptics_i2c_rmi4.h" |
| |
| #define DEBUG_FW_UPDATE |
| #define SHOW_PROGRESS |
| #define FW_IMAGE_NAME "PR1063486-s7301_00000000.img" |
| #define MAX_FIRMWARE_ID_LEN 10 |
| #define FORCE_UPDATE false |
| #define INSIDE_FIRMWARE_UPDATE |
| |
| #define CHECKSUM_OFFSET 0x00 |
| #define BOOTLOADER_VERSION_OFFSET 0x07 |
| #define IMAGE_SIZE_OFFSET 0x08 |
| #define CONFIG_SIZE_OFFSET 0x0C |
| #define PRODUCT_ID_OFFSET 0x10 |
| #define PRODUCT_INFO_OFFSET 0x1E |
| #define FW_IMAGE_OFFSET 0x100 |
| #define PRODUCT_ID_SIZE 10 |
| |
| #define BOOTLOADER_ID_OFFSET 0 |
| #define FLASH_PROPERTIES_OFFSET 2 |
| #define BLOCK_SIZE_OFFSET 3 |
| #define FW_BLOCK_COUNT_OFFSET 5 |
| |
| #define REG_MAP (1 << 0) |
| #define UNLOCKED (1 << 1) |
| #define HAS_CONFIG_ID (1 << 2) |
| #define HAS_PERM_CONFIG (1 << 3) |
| #define HAS_BL_CONFIG (1 << 4) |
| #define HAS_DISP_CONFIG (1 << 5) |
| #define HAS_CTRL1 (1 << 6) |
| |
| #define BLOCK_NUMBER_OFFSET 0 |
| #define BLOCK_DATA_OFFSET 2 |
| |
| #define UI_CONFIG_AREA 0x00 |
| #define PERM_CONFIG_AREA 0x01 |
| #define BL_CONFIG_AREA 0x02 |
| #define DISP_CONFIG_AREA 0x03 |
| |
| enum flash_command { |
| CMD_WRITE_FW_BLOCK = 0x2, |
| CMD_ERASE_ALL = 0x3, |
| CMD_READ_CONFIG_BLOCK = 0x5, |
| CMD_WRITE_CONFIG_BLOCK = 0x6, |
| CMD_ERASE_CONFIG = 0x7, |
| CMD_ERASE_BL_CONFIG = 0x9, |
| CMD_ERASE_DISP_CONFIG = 0xA, |
| CMD_ENABLE_FLASH_PROG = 0xF, |
| }; |
| |
| enum flash_area { |
| NONE, |
| UI_FIRMWARE, |
| CONFIG_AREA |
| }; |
| |
| #define SLEEP_MODE_NORMAL (0x00) |
| #define SLEEP_MODE_SENSOR_SLEEP (0x01) |
| #define SLEEP_MODE_RESERVED0 (0x02) |
| #define SLEEP_MODE_RESERVED1 (0x03) |
| |
| #define ENABLE_WAIT_MS (1 * 1000) |
| #define WRITE_WAIT_MS (3 * 1000) |
| #define ERASE_WAIT_MS (5 * 1000) |
| #define RESET_WAIT_MS (500) |
| |
| #define SLEEP_TIME_US 50 |
| |
| static ssize_t fwu_sysfs_show_image(struct file *data_file, |
| struct kobject *kobj, struct bin_attribute *attributes, |
| char *buf, loff_t pos, size_t count); |
| |
| static ssize_t fwu_sysfs_store_image(struct file *data_file, |
| struct kobject *kobj, struct bin_attribute *attributes, |
| char *buf, loff_t pos, size_t count); |
| |
| static ssize_t fwu_sysfs_do_reflash_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t fwu_sysfs_write_config_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t fwu_sysfs_read_config_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t fwu_sysfs_config_area_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t fwu_sysfs_image_size_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t fwu_sysfs_block_size_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_firmware_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_configuration_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_perm_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_bl_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_disp_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t fwu_sysfs_config_id_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static int fwu_wait_for_idle(int timeout_ms); |
| |
| struct image_header { |
| unsigned int checksum; |
| unsigned int image_size; |
| unsigned int config_size; |
| unsigned char options; |
| unsigned char bootloader_version; |
| unsigned char product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE + 1]; |
| unsigned char product_info[SYNAPTICS_RMI4_PRODUCT_INFO_SIZE]; |
| }; |
| |
| struct pdt_properties { |
| union { |
| struct { |
| unsigned char reserved_1:6; |
| unsigned char has_bsr:1; |
| unsigned char reserved_2:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct f01_device_status { |
| union { |
| struct { |
| unsigned char status_code:4; |
| unsigned char reserved:2; |
| unsigned char flash_prog:1; |
| unsigned char unconfigured:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct f01_device_control { |
| union { |
| struct { |
| unsigned char sleep_mode:2; |
| unsigned char nosleep:1; |
| unsigned char reserved:2; |
| unsigned char charger_connected:1; |
| unsigned char report_rate:1; |
| unsigned char configured:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct f34_flash_control { |
| union { |
| struct { |
| unsigned char command:4; |
| unsigned char status:3; |
| unsigned char program_enabled:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct f34_flash_properties { |
| union { |
| struct { |
| unsigned char regmap:1; |
| unsigned char unlocked:1; |
| unsigned char has_configid:1; |
| unsigned char has_perm_config:1; |
| unsigned char has_bl_config:1; |
| unsigned char has_display_config:1; |
| unsigned char has_blob_config:1; |
| unsigned char reserved:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_fwu_handle { |
| bool initialized; |
| bool force_update; |
| char product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE + 1]; |
| unsigned int image_size; |
| unsigned int data_pos; |
| unsigned char intr_mask; |
| unsigned char bootloader_id[2]; |
| unsigned char productinfo1; |
| unsigned char productinfo2; |
| unsigned char *ext_data_source; |
| unsigned char *read_config_buf; |
| const unsigned char *firmware_data; |
| const unsigned char *config_data; |
| unsigned short block_size; |
| unsigned short fw_block_count; |
| unsigned short config_block_count; |
| unsigned short perm_config_block_count; |
| unsigned short bl_config_block_count; |
| unsigned short disp_config_block_count; |
| unsigned short config_size; |
| unsigned short config_area; |
| unsigned short addr_f34_flash_control; |
| unsigned short addr_f01_interrupt_register; |
| struct synaptics_rmi4_fn_desc f01_fd; |
| struct synaptics_rmi4_fn_desc f34_fd; |
| struct synaptics_rmi4_exp_fn_ptr *fn_ptr; |
| struct synaptics_rmi4_data *rmi4_data; |
| struct f34_flash_control flash_control; |
| struct f34_flash_properties flash_properties; |
| struct workqueue_struct *fwu_workqueue; |
| struct delayed_work fwu_work; |
| }; |
| |
| static struct bin_attribute dev_attr_data = { |
| .attr = { |
| .name = "data", |
| .mode = (S_IRUGO | S_IWUGO), |
| }, |
| .size = 0, |
| .read = fwu_sysfs_show_image, |
| .write = fwu_sysfs_store_image, |
| }; |
| |
| static struct device_attribute attrs[] = { |
| __ATTR(doreflash, S_IWUGO, |
| synaptics_rmi4_show_error, |
| fwu_sysfs_do_reflash_store), |
| __ATTR(writeconfig, S_IWUGO, |
| synaptics_rmi4_show_error, |
| fwu_sysfs_write_config_store), |
| __ATTR(readconfig, S_IWUGO, |
| synaptics_rmi4_show_error, |
| fwu_sysfs_read_config_store), |
| __ATTR(configarea, S_IWUGO, |
| synaptics_rmi4_show_error, |
| fwu_sysfs_config_area_store), |
| __ATTR(imagesize, S_IWUGO, |
| synaptics_rmi4_show_error, |
| fwu_sysfs_image_size_store), |
| __ATTR(blocksize, S_IRUGO, |
| fwu_sysfs_block_size_show, |
| synaptics_rmi4_store_error), |
| __ATTR(fwblockcount, S_IRUGO, |
| fwu_sysfs_firmware_block_count_show, |
| synaptics_rmi4_store_error), |
| __ATTR(configblockcount, S_IRUGO, |
| fwu_sysfs_configuration_block_count_show, |
| synaptics_rmi4_store_error), |
| __ATTR(permconfigblockcount, S_IRUGO, |
| fwu_sysfs_perm_config_block_count_show, |
| synaptics_rmi4_store_error), |
| __ATTR(blconfigblockcount, S_IRUGO, |
| fwu_sysfs_bl_config_block_count_show, |
| synaptics_rmi4_store_error), |
| __ATTR(dispconfigblockcount, S_IRUGO, |
| fwu_sysfs_disp_config_block_count_show, |
| synaptics_rmi4_store_error), |
| __ATTR(config_id, S_IRUGO, |
| fwu_sysfs_config_id_show, |
| synaptics_rmi4_store_error), |
| }; |
| |
| static struct synaptics_rmi4_fwu_handle *fwu; |
| |
| static struct completion remove_complete; |
| |
| static unsigned int extract_uint(const unsigned char *ptr) |
| { |
| return (unsigned int)ptr[0] + |
| (unsigned int)ptr[1] * 0x100 + |
| (unsigned int)ptr[2] * 0x10000 + |
| (unsigned int)ptr[3] * 0x1000000; |
| } |
| |
| static void parse_header(struct image_header *header, |
| const unsigned char *fw_image) |
| { |
| header->checksum = extract_uint(&fw_image[CHECKSUM_OFFSET]); |
| header->bootloader_version = fw_image[BOOTLOADER_VERSION_OFFSET]; |
| header->image_size = extract_uint(&fw_image[IMAGE_SIZE_OFFSET]); |
| header->config_size = extract_uint(&fw_image[CONFIG_SIZE_OFFSET]); |
| memcpy(header->product_id, &fw_image[PRODUCT_ID_OFFSET], |
| SYNAPTICS_RMI4_PRODUCT_ID_SIZE); |
| header->product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE] = 0; |
| memcpy(header->product_info, &fw_image[PRODUCT_INFO_OFFSET], |
| SYNAPTICS_RMI4_PRODUCT_INFO_SIZE); |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "Firwmare size %d, config size %d\n", |
| header->image_size, |
| header->config_size); |
| #endif |
| return; |
| } |
| |
| static int fwu_read_f01_device_status(struct f01_device_status *status) |
| { |
| int retval; |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f01_fd.data_base_addr, |
| status->data, |
| sizeof(status->data)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to read F01 device status\n", |
| __func__); |
| return retval; |
| } |
| |
| return 0; |
| } |
| |
| static int fwu_read_f34_queries(void) |
| { |
| int retval; |
| unsigned char count = 4; |
| unsigned char buf[10]; |
| struct i2c_client *i2c_client = fwu->rmi4_data->i2c_client; |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.query_base_addr + BOOTLOADER_ID_OFFSET, |
| fwu->bootloader_id, |
| sizeof(fwu->bootloader_id)); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to read bootloader ID\n", |
| __func__); |
| return retval; |
| } |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.query_base_addr + FLASH_PROPERTIES_OFFSET, |
| fwu->flash_properties.data, |
| sizeof(fwu->flash_properties.data)); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to read flash properties\n", |
| __func__); |
| return retval; |
| } |
| |
| dev_info(&i2c_client->dev, "%s perm:%d, bl:%d, display:%d\n", |
| __func__, |
| fwu->flash_properties.has_perm_config, |
| fwu->flash_properties.has_bl_config, |
| fwu->flash_properties.has_display_config); |
| |
| if (fwu->flash_properties.has_perm_config) |
| count += 2; |
| |
| if (fwu->flash_properties.has_bl_config) |
| count += 2; |
| |
| if (fwu->flash_properties.has_display_config) |
| count += 2; |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.query_base_addr + BLOCK_SIZE_OFFSET, |
| buf, |
| 2); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to read block size info\n", |
| __func__); |
| return retval; |
| } |
| |
| batohs(&fwu->block_size, &(buf[0])); |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.query_base_addr + FW_BLOCK_COUNT_OFFSET, |
| buf, |
| count); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to read block count info\n", |
| __func__); |
| return retval; |
| } |
| |
| batohs(&fwu->fw_block_count, &(buf[0])); |
| batohs(&fwu->config_block_count, &(buf[2])); |
| |
| count = 4; |
| |
| if (fwu->flash_properties.has_perm_config) { |
| batohs(&fwu->perm_config_block_count, &(buf[count])); |
| count += 2; |
| } |
| |
| if (fwu->flash_properties.has_bl_config) { |
| batohs(&fwu->bl_config_block_count, &(buf[count])); |
| count += 2; |
| } |
| |
| if (fwu->flash_properties.has_display_config) |
| batohs(&fwu->disp_config_block_count, &(buf[count])); |
| |
| fwu->addr_f34_flash_control = fwu->f34_fd.data_base_addr + |
| BLOCK_DATA_OFFSET + |
| fwu->block_size; |
| return 0; |
| } |
| |
| static int fwu_read_interrupt_status(void) |
| { |
| int retval; |
| unsigned char interrupt_status; |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->addr_f01_interrupt_register, |
| &interrupt_status, |
| sizeof(interrupt_status)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to read flash status\n", |
| __func__); |
| return retval; |
| } |
| return interrupt_status; |
| } |
| |
| static int fwu_read_f34_flash_status(void) |
| { |
| int retval; |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->addr_f34_flash_control, |
| fwu->flash_control.data, |
| sizeof(fwu->flash_control.data)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to read flash status\n", |
| __func__); |
| return retval; |
| } |
| return 0; |
| } |
| |
| static int fwu_reset_device(void) |
| { |
| int retval; |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Reset device\n", |
| __func__); |
| #endif |
| |
| retval = fwu->rmi4_data->reset_device(fwu->rmi4_data); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to reset core driver after reflash\n", |
| __func__); |
| return retval; |
| } |
| return 0; |
| } |
| |
| static int fwu_write_f34_command(unsigned char cmd) |
| { |
| int retval; |
| |
| fwu->flash_control.data[0] = cmd; |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->addr_f34_flash_control, |
| fwu->flash_control.data, |
| sizeof(fwu->flash_control.data)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write command 0x%02x\n", |
| __func__, fwu->flash_control.data[0]); |
| return retval; |
| } |
| return 0; |
| } |
| |
| static int fwu_wait_for_idle(int timeout_ms) |
| { |
| int count = 0; |
| int timeout_count = ((timeout_ms * 1000) / SLEEP_TIME_US) + 1; |
| do { |
| if (fwu->flash_control.command == 0x00) |
| return 0; |
| |
| usleep_range(SLEEP_TIME_US, SLEEP_TIME_US + 100); |
| } while (count++ < timeout_count); |
| |
| fwu_read_f34_flash_status(); |
| if (fwu->flash_control.command == 0x00) |
| return 0; |
| |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Timed out waiting for idle status\n", |
| __func__); |
| |
| return -ETIMEDOUT; |
| } |
| |
| static enum flash_area fwu_go_nogo(void) |
| { |
| int retval = 0; |
| int index = 0; |
| int deviceFirmwareID; |
| int imageConfigID; |
| int deviceConfigID; |
| unsigned long imageFirmwareID; |
| unsigned char firmware_id[4]; |
| unsigned char config_id[4]; |
| char *strptr; |
| char *imagePR = kzalloc(sizeof(MAX_FIRMWARE_ID_LEN), GFP_KERNEL); |
| enum flash_area flash_area = NONE; |
| struct i2c_client *i2c_client = fwu->rmi4_data->i2c_client; |
| struct f01_device_status f01_device_status; |
| |
| if (fwu->force_update) { |
| flash_area = UI_FIRMWARE; |
| goto exit; |
| } |
| |
| retval = fwu_read_f01_device_status(&f01_device_status); |
| if (retval < 0) { |
| flash_area = NONE; |
| goto exit; |
| } |
| |
| imagePR = kzalloc(sizeof(MAX_FIRMWARE_ID_LEN), GFP_KERNEL); |
| |
| /* Force update firmware when device is in bootloader mode */ |
| if (f01_device_status.flash_prog) { |
| dev_info(&i2c_client->dev, |
| "%s: In flash prog mode\n", |
| __func__); |
| flash_area = UI_FIRMWARE; |
| goto exit; |
| } |
| |
| |
| /* device firmware id */ |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f01_fd.query_base_addr + 18, |
| firmware_id, |
| sizeof(firmware_id)); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "Failed to read firmware ID (code %d).\n", retval); |
| goto exit; |
| } |
| firmware_id[3] = 0; |
| deviceFirmwareID = extract_uint(firmware_id); |
| |
| /* .img firmware id */ |
| strptr = strstr(FW_IMAGE_NAME, "PR"); |
| if (!strptr) { |
| dev_err(&i2c_client->dev, |
| "No valid PR number (PRxxxxxxx)" \ |
| "found in image file name...\n"); |
| goto exit; |
| } |
| |
| strptr += 2; |
| while (strptr[index] >= '0' && strptr[index] <= '9') { |
| imagePR[index] = strptr[index]; |
| index++; |
| } |
| imagePR[index] = 0; |
| |
| retval = kstrtoul(imagePR, 10, &imageFirmwareID); |
| if (retval == -EINVAL) { |
| dev_err(&i2c_client->dev, |
| "invalid image firmware id...\n"); |
| goto exit; |
| } |
| |
| dev_info(&i2c_client->dev, |
| "Device firmware id %d, .img firmware id %d\n", |
| deviceFirmwareID, |
| (unsigned int)imageFirmwareID); |
| if (imageFirmwareID > deviceFirmwareID) { |
| flash_area = UI_FIRMWARE; |
| goto exit; |
| } |
| |
| /* device config id */ |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.ctrl_base_addr, |
| config_id, |
| sizeof(config_id)); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "Failed to read config ID (code %d).\n", retval); |
| flash_area = NONE; |
| goto exit; |
| } |
| deviceConfigID = extract_uint(config_id); |
| |
| dev_info(&i2c_client->dev, |
| "Device config ID 0x%02X, 0x%02X, 0x%02X, 0x%02X\n", |
| config_id[0], config_id[1], config_id[2], config_id[3]); |
| |
| /* .img config id */ |
| dev_info(&i2c_client->dev, |
| ".img config ID 0x%02X, 0x%02X, 0x%02X, 0x%02X\n", |
| fwu->config_data[0], |
| fwu->config_data[1], |
| fwu->config_data[2], |
| fwu->config_data[3]); |
| imageConfigID = extract_uint(fwu->config_data); |
| |
| if (imageConfigID > deviceConfigID) { |
| flash_area = CONFIG_AREA; |
| goto exit; |
| } |
| |
| exit: |
| kfree(imagePR); |
| if (flash_area == NONE) |
| dev_info(&i2c_client->dev, |
| "Nothing needs to be updated\n"); |
| else |
| dev_info(&i2c_client->dev, |
| "Update %s block\n", |
| flash_area == UI_FIRMWARE ? "UI FW" : "CONFIG"); |
| return flash_area; |
| } |
| |
| static int fwu_scan_pdt(void) |
| { |
| int retval; |
| unsigned char ii; |
| unsigned char intr_count = 0; |
| unsigned char intr_off; |
| unsigned char intr_src; |
| unsigned short addr; |
| bool f01found = false; |
| bool f34found = false; |
| struct synaptics_rmi4_fn_desc rmi_fd; |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&fwu->rmi4_data->i2c_client->dev, "Scan PDT\n"); |
| #endif |
| |
| for (addr = PDT_START; addr > PDT_END; addr -= PDT_ENTRY_SIZE) { |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| addr, |
| (unsigned char *)&rmi_fd, |
| sizeof(rmi_fd)); |
| if (retval < 0) |
| return retval; |
| |
| if (rmi_fd.fn_number) { |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Found F%02x\n", |
| __func__, rmi_fd.fn_number); |
| switch (rmi_fd.fn_number) { |
| case SYNAPTICS_RMI4_F01: |
| f01found = true; |
| fwu->f01_fd = rmi_fd; |
| fwu->addr_f01_interrupt_register = |
| fwu->f01_fd.data_base_addr + 1; |
| break; |
| case SYNAPTICS_RMI4_F34: |
| f34found = true; |
| fwu->f34_fd = rmi_fd; |
| fwu->intr_mask = 0; |
| intr_src = rmi_fd.intr_src_count; |
| intr_off = intr_count % 8; |
| for (ii = intr_off; |
| ii < ((intr_src & MASK_3BIT) + |
| intr_off); |
| ii++) |
| fwu->intr_mask |= 1 << ii; |
| break; |
| } |
| } else |
| break; |
| |
| intr_count += (rmi_fd.intr_src_count & MASK_3BIT); |
| } |
| |
| if (!f01found || !f34found) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to find both F01 and F34\n", |
| __func__); |
| return -EINVAL; |
| } |
| |
| fwu_read_interrupt_status(); |
| return 0; |
| } |
| |
| static int fwu_write_blocks(unsigned char *block_ptr, unsigned short block_cnt, |
| unsigned char command) |
| { |
| int retval; |
| unsigned char block_offset[] = {0, 0}; |
| unsigned short block_num; |
| struct i2c_client *i2c_client = fwu->rmi4_data->i2c_client; |
| #ifdef SHOW_PROGRESS |
| unsigned int progress = (command == CMD_WRITE_CONFIG_BLOCK) ? |
| 10 : 100; |
| #endif |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&i2c_client->dev, |
| "%s: Start to update %s blocks\n", |
| __func__, |
| command == CMD_WRITE_CONFIG_BLOCK ? |
| "config" : "firmware"); |
| #endif |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->f34_fd.data_base_addr + BLOCK_NUMBER_OFFSET, |
| block_offset, |
| sizeof(block_offset)); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to write to block number registers\n", |
| __func__); |
| return retval; |
| } |
| |
| for (block_num = 0; block_num < block_cnt; block_num++) { |
| #ifdef SHOW_PROGRESS |
| if (block_num % progress == 0) |
| dev_info(&i2c_client->dev, |
| "%s: update %s %3d / %3d\n", |
| __func__, |
| command == CMD_WRITE_CONFIG_BLOCK ? |
| "config" : "firmware", |
| block_num, block_cnt); |
| #endif |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->f34_fd.data_base_addr + BLOCK_DATA_OFFSET, |
| block_ptr, |
| fwu->block_size); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to write block data (block %d)\n", |
| __func__, block_num); |
| return retval; |
| } |
| |
| retval = fwu_write_f34_command(command); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to write command for block %d\n", |
| __func__, block_num); |
| return retval; |
| } |
| |
| retval = fwu_wait_for_idle(WRITE_WAIT_MS); |
| if (retval < 0) { |
| dev_err(&i2c_client->dev, |
| "%s: Failed to wait for idle status (block %d)\n", |
| __func__, block_num); |
| return retval; |
| } |
| |
| if (fwu->flash_control.status != 0x00) { |
| dev_err(&i2c_client->dev, |
| "%s: Flash block %d failed, status 0x%02X\n", |
| __func__, block_num, retval); |
| return retval; |
| } |
| |
| block_ptr += fwu->block_size; |
| } |
| #ifdef SHOW_PROGRESS |
| dev_info(&i2c_client->dev, |
| "%s: update %s %3d / %3d\n", |
| __func__, |
| command == CMD_WRITE_CONFIG_BLOCK ? |
| "config" : "firmware", |
| block_cnt, block_cnt); |
| #endif |
| return 0; |
| } |
| |
| static int fwu_write_firmware(void) |
| { |
| return fwu_write_blocks((unsigned char *)fwu->firmware_data, |
| fwu->fw_block_count, CMD_WRITE_FW_BLOCK); |
| } |
| |
| static int fwu_write_configuration(void) |
| { |
| return fwu_write_blocks((unsigned char *)fwu->config_data, |
| fwu->config_block_count, CMD_WRITE_CONFIG_BLOCK); |
| } |
| |
| static int fwu_write_bootloader_id(void) |
| { |
| int retval; |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "Write bootloader ID 0x%02X 0x%02X\n", |
| fwu->bootloader_id[0], |
| fwu->bootloader_id[1]); |
| #endif |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->f34_fd.data_base_addr + BLOCK_DATA_OFFSET, |
| fwu->bootloader_id, |
| sizeof(fwu->bootloader_id)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write bootloader ID\n", |
| __func__); |
| return retval; |
| } |
| |
| return 0; |
| } |
| |
| static int fwu_enter_flash_prog(void) |
| { |
| int retval; |
| struct f01_device_status f01_device_status; |
| struct f01_device_control f01_device_control; |
| |
| #ifdef DEBUG_FW_UPDATE |
| dev_info(&fwu->rmi4_data->i2c_client->dev, "Enter bootloader mode\n"); |
| #endif |
| retval = fwu_read_f01_device_status(&f01_device_status); |
| if (retval < 0) |
| return retval; |
| |
| if (f01_device_status.flash_prog) { |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Already in flash prog mode\n", |
| __func__); |
| return 0; |
| } |
| |
| retval = fwu_write_bootloader_id(); |
| if (retval < 0) |
| return retval; |
| |
| retval = fwu_write_f34_command(CMD_ENABLE_FLASH_PROG); |
| if (retval < 0) |
| return retval; |
| |
| retval = fwu_wait_for_idle(ENABLE_WAIT_MS); |
| if (retval < 0) |
| return retval; |
| |
| retval = fwu_scan_pdt(); |
| if (retval < 0) |
| return retval; |
| |
| retval = fwu_read_f01_device_status(&f01_device_status); |
| if (retval < 0) |
| return retval; |
| |
| if (!f01_device_status.flash_prog) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Not in flash prog mode\n", |
| __func__); |
| return -EINVAL; |
| } |
| |
| retval = fwu_read_f34_queries(); |
| if (retval < 0) |
| return retval; |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f01_fd.ctrl_base_addr, |
| f01_device_control.data, |
| sizeof(f01_device_control.data)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to read F01 device control\n", |
| __func__); |
| return retval; |
| } |
| |
| f01_device_control.nosleep = true; |
| f01_device_control.sleep_mode = SLEEP_MODE_NORMAL; |
| |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->f01_fd.ctrl_base_addr, |
| f01_device_control.data, |
| sizeof(f01_device_control.data)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write F01 device control\n", |
| __func__); |
| return retval; |
| } |
| |
| return retval; |
| } |
| |
| static int fwu_do_reflash(void) |
| { |
| int retval; |
| |
| retval = fwu_enter_flash_prog(); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Entered flash prog mode\n", |
| __func__); |
| |
| retval = fwu_write_bootloader_id(); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Bootloader ID written\n", |
| __func__); |
| |
| retval = fwu_write_f34_command(CMD_ERASE_ALL); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Erase all command written\n", |
| __func__); |
| |
| retval = fwu_wait_for_idle(ERASE_WAIT_MS); |
| if (retval < 0) |
| return retval; |
| |
| if (fwu->flash_control.status != 0x00) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Erase all command failed, status 0x%02X\n", |
| __func__, retval); |
| return -1; |
| } |
| |
| if (fwu->firmware_data) { |
| retval = fwu_write_firmware(); |
| if (retval < 0) |
| return retval; |
| pr_notice("%s: Firmware programmed\n", __func__); |
| } |
| |
| if (fwu->config_data) { |
| retval = fwu_write_configuration(); |
| if (retval < 0) |
| return retval; |
| pr_notice("%s: Configuration programmed\n", __func__); |
| } |
| |
| return retval; |
| } |
| |
| static int fwu_do_write_config(void) |
| { |
| int retval; |
| |
| retval = fwu_enter_flash_prog(); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Entered flash prog mode\n", |
| __func__); |
| |
| if (fwu->config_area == PERM_CONFIG_AREA) { |
| fwu->config_block_count = fwu->perm_config_block_count; |
| goto write_config; |
| } |
| |
| retval = fwu_write_bootloader_id(); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Bootloader ID written\n", |
| __func__); |
| |
| switch (fwu->config_area) { |
| case UI_CONFIG_AREA: |
| retval = fwu_write_f34_command(CMD_ERASE_CONFIG); |
| break; |
| case BL_CONFIG_AREA: |
| retval = fwu_write_f34_command(CMD_ERASE_BL_CONFIG); |
| fwu->config_block_count = fwu->bl_config_block_count; |
| break; |
| case DISP_CONFIG_AREA: |
| retval = fwu_write_f34_command(CMD_ERASE_DISP_CONFIG); |
| fwu->config_block_count = fwu->disp_config_block_count; |
| break; |
| } |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Erase command written\n", |
| __func__); |
| |
| retval = fwu_wait_for_idle(ERASE_WAIT_MS); |
| if (retval < 0) |
| return retval; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Idle status detected\n", |
| __func__); |
| |
| write_config: |
| retval = fwu_write_configuration(); |
| if (retval < 0) |
| return retval; |
| |
| pr_notice("%s: Config written\n", __func__); |
| |
| return retval; |
| } |
| |
| static int fwu_start_write_config(void) |
| { |
| int retval; |
| struct image_header header; |
| |
| switch (fwu->config_area) { |
| case UI_CONFIG_AREA: |
| break; |
| case PERM_CONFIG_AREA: |
| if (!fwu->flash_properties.has_perm_config) |
| return -EINVAL; |
| break; |
| case BL_CONFIG_AREA: |
| if (!fwu->flash_properties.has_bl_config) |
| return -EINVAL; |
| break; |
| case DISP_CONFIG_AREA: |
| if (!fwu->flash_properties.has_display_config) |
| return -EINVAL; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| if (fwu->ext_data_source) |
| fwu->config_data = fwu->ext_data_source; |
| else |
| return -EINVAL; |
| |
| if (fwu->config_area == UI_CONFIG_AREA) { |
| parse_header(&header, fwu->ext_data_source); |
| |
| if (header.config_size) { |
| fwu->config_data = fwu->ext_data_source + |
| FW_IMAGE_OFFSET + |
| header.image_size; |
| } else { |
| return -EINVAL; |
| } |
| } |
| |
| pr_notice("%s: Start of write config process\n", __func__); |
| |
| retval = fwu_do_write_config(); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write config\n", |
| __func__); |
| } |
| |
| fwu->rmi4_data->reset_device(fwu->rmi4_data); |
| |
| pr_notice("%s: End of write config process\n", __func__); |
| |
| return retval; |
| } |
| |
| static int fwu_do_read_config(void) |
| { |
| int retval; |
| unsigned char block_offset[] = {0, 0}; |
| unsigned short block_num; |
| unsigned short block_count; |
| unsigned short index = 0; |
| |
| retval = fwu_enter_flash_prog(); |
| if (retval < 0) |
| goto exit; |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Entered flash prog mode\n", |
| __func__); |
| |
| switch (fwu->config_area) { |
| case UI_CONFIG_AREA: |
| block_count = fwu->config_block_count; |
| break; |
| case PERM_CONFIG_AREA: |
| if (!fwu->flash_properties.has_perm_config) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| block_count = fwu->perm_config_block_count; |
| break; |
| case BL_CONFIG_AREA: |
| if (!fwu->flash_properties.has_bl_config) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| block_count = fwu->bl_config_block_count; |
| break; |
| case DISP_CONFIG_AREA: |
| if (!fwu->flash_properties.has_display_config) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| block_count = fwu->disp_config_block_count; |
| break; |
| default: |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| fwu->config_size = fwu->block_size * block_count; |
| |
| kfree(fwu->read_config_buf); |
| fwu->read_config_buf = kzalloc(fwu->config_size, GFP_KERNEL); |
| |
| block_offset[1] |= (fwu->config_area << 5); |
| |
| retval = fwu->fn_ptr->write(fwu->rmi4_data, |
| fwu->f34_fd.data_base_addr + BLOCK_NUMBER_OFFSET, |
| block_offset, |
| sizeof(block_offset)); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write to block number registers\n", |
| __func__); |
| goto exit; |
| } |
| |
| for (block_num = 0; block_num < block_count; block_num++) { |
| retval = fwu_write_f34_command(CMD_READ_CONFIG_BLOCK); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to write read config command\n", |
| __func__); |
| goto exit; |
| } |
| |
| retval = fwu_wait_for_idle(WRITE_WAIT_MS); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to wait for idle status\n", |
| __func__); |
| goto exit; |
| } |
| |
| retval = fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.data_base_addr + BLOCK_DATA_OFFSET, |
| &fwu->read_config_buf[index], |
| fwu->block_size); |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to read block data (block %d)\n", |
| __func__, block_num); |
| goto exit; |
| } |
| |
| index += fwu->block_size; |
| } |
| |
| exit: |
| fwu->rmi4_data->reset_device(fwu->rmi4_data); |
| |
| return retval; |
| } |
| |
| static int fwu_start_reflash(void) |
| { |
| int retval; |
| struct image_header header; |
| const unsigned char *fw_image; |
| const struct firmware *fw_entry = NULL; |
| struct f01_device_status f01_device_status; |
| enum flash_area flash_area; |
| |
| pr_notice("%s: Start of reflash process\n", __func__); |
| |
| if (fwu->ext_data_source) |
| fw_image = fwu->ext_data_source; |
| else { |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Requesting firmware image %s\n", |
| __func__, FW_IMAGE_NAME); |
| |
| retval = request_firmware(&fw_entry, FW_IMAGE_NAME, |
| &fwu->rmi4_data->i2c_client->dev); |
| if (retval != 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Firmware image %s not available\n", |
| __func__, FW_IMAGE_NAME); |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| dev_dbg(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Firmware image size = %d\n", |
| __func__, fw_entry->size); |
| |
| fw_image = fw_entry->data; |
| } |
| |
| parse_header(&header, fw_image); |
| |
| if (header.image_size) |
| fwu->firmware_data = fw_image + FW_IMAGE_OFFSET; |
| if (header.config_size) { |
| fwu->config_data = fw_image + FW_IMAGE_OFFSET + |
| header.image_size; |
| } |
| |
| if (fwu->ext_data_source) |
| flash_area = UI_FIRMWARE; |
| else |
| flash_area = fwu_go_nogo(); |
| |
| switch (flash_area) { |
| case NONE: |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "%s: No need to do reflash.\n", |
| __func__); |
| goto exit; |
| case UI_FIRMWARE: |
| retval = fwu_do_reflash(); |
| break; |
| case CONFIG_AREA: |
| retval = fwu_do_write_config(); |
| break; |
| default: |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Unknown flash area\n", |
| __func__); |
| goto exit; |
| } |
| |
| if (retval < 0) { |
| dev_err(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Failed to do reflash\n", |
| __func__); |
| } |
| |
| /* reset device */ |
| fwu_reset_device(); |
| |
| /* check device status */ |
| retval = fwu_read_f01_device_status(&f01_device_status); |
| if (retval < 0) |
| goto exit; |
| |
| dev_info(&fwu->rmi4_data->i2c_client->dev, "Device is in %s mode\n", |
| f01_device_status.flash_prog == 1 ? "bootloader" : "UI"); |
| if (f01_device_status.flash_prog) |
| dev_info(&fwu->rmi4_data->i2c_client->dev, "Flash status %d\n", |
| f01_device_status.status_code); |
| |
| if (f01_device_status.flash_prog) { |
| dev_info(&fwu->rmi4_data->i2c_client->dev, |
| "%s: Device is in flash prog mode 0x%02X\n", |
| __func__, f01_device_status.status_code); |
| retval = 0; |
| goto exit; |
| } |
| |
| if (fw_entry) |
| release_firmware(fw_entry); |
| |
| pr_notice("%s: End of reflash process\n", __func__); |
| exit: |
| return retval; |
| } |
| |
| int synaptics_fw_updater(unsigned char *fw_data) |
| { |
| int retval; |
| |
| if (!fwu) |
| return -ENODEV; |
| |
| if (!fwu->initialized) |
| return -ENODEV; |
| |
| fwu->ext_data_source = fw_data; |
| fwu->config_area = UI_CONFIG_AREA; |
| |
| retval = fwu_start_reflash(); |
| |
| return retval; |
| } |
| EXPORT_SYMBOL(synaptics_fw_updater); |
| |
| static ssize_t fwu_sysfs_show_image(struct file *data_file, |
| struct kobject *kobj, struct bin_attribute *attributes, |
| char *buf, loff_t pos, size_t count) |
| { |
| struct synaptics_rmi4_data *rmi4_data = fwu->rmi4_data; |
| |
| if (count < fwu->config_size) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Not enough space (%d bytes) in buffer\n", |
| __func__, count); |
| return -EINVAL; |
| } |
| |
| memcpy(buf, fwu->read_config_buf, fwu->config_size); |
| |
| return fwu->config_size; |
| } |
| |
| static ssize_t fwu_sysfs_store_image(struct file *data_file, |
| struct kobject *kobj, struct bin_attribute *attributes, |
| char *buf, loff_t pos, size_t count) |
| { |
| memcpy((void *)(&fwu->ext_data_source[fwu->data_pos]), |
| (const void *)buf, |
| count); |
| |
| fwu->data_pos += count; |
| |
| return count; |
| } |
| |
| static ssize_t fwu_sysfs_do_reflash_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned int input; |
| struct synaptics_rmi4_data *rmi4_data = fwu->rmi4_data; |
| |
| if (sscanf(buf, "%u", &input) != 1) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| if (input != 1) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| retval = synaptics_fw_updater(fwu->ext_data_source); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to do reflash\n", |
| __func__); |
| goto exit; |
| } |
| |
| retval = count; |
| |
| exit: |
| kfree(fwu->ext_data_source); |
| fwu->ext_data_source = NULL; |
| return retval; |
| } |
| |
| static ssize_t fwu_sysfs_write_config_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned int input; |
| struct synaptics_rmi4_data *rmi4_data = fwu->rmi4_data; |
| |
| if (sscanf(buf, "%u", &input) != 1) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| if (input != 1) { |
| retval = -EINVAL; |
| goto exit; |
| } |
| |
| retval = fwu_start_write_config(); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to write config\n", |
| __func__); |
| goto exit; |
| } |
| |
| retval = count; |
| |
| exit: |
| kfree(fwu->ext_data_source); |
| fwu->ext_data_source = NULL; |
| return retval; |
| } |
| |
| static ssize_t fwu_sysfs_read_config_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned int input; |
| struct synaptics_rmi4_data *rmi4_data = fwu->rmi4_data; |
| |
| if (sscanf(buf, "%u", &input) != 1) |
| return -EINVAL; |
| |
| if (input != 1) |
| return -EINVAL; |
| |
| retval = fwu_do_read_config(); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read config\n", |
| __func__); |
| return retval; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t fwu_sysfs_config_area_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned long config_area; |
| |
| retval = kstrtoul(buf, 10, &config_area); |
| if (retval) |
| return retval; |
| |
| fwu->config_area = config_area; |
| |
| return count; |
| } |
| |
| static ssize_t fwu_sysfs_image_size_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned long size; |
| struct synaptics_rmi4_data *rmi4_data = fwu->rmi4_data; |
| |
| retval = kstrtoul(buf, 10, &size); |
| if (retval) |
| return retval; |
| |
| fwu->image_size = size; |
| fwu->data_pos = 0; |
| |
| kfree(fwu->ext_data_source); |
| fwu->ext_data_source = kzalloc(fwu->image_size, GFP_KERNEL); |
| if (!fwu->ext_data_source) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for image data\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t fwu_sysfs_block_size_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->block_size); |
| } |
| |
| static ssize_t fwu_sysfs_firmware_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->fw_block_count); |
| } |
| |
| static ssize_t fwu_sysfs_configuration_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->config_block_count); |
| } |
| |
| static ssize_t fwu_sysfs_perm_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->perm_config_block_count); |
| } |
| |
| static ssize_t fwu_sysfs_bl_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->bl_config_block_count); |
| } |
| |
| static ssize_t fwu_sysfs_disp_config_block_count_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u\n", fwu->disp_config_block_count); |
| } |
| |
| static ssize_t fwu_sysfs_config_id_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| unsigned char config_id[8]; |
| /* device config id */ |
| fwu->fn_ptr->read(fwu->rmi4_data, |
| fwu->f34_fd.ctrl_base_addr, |
| config_id, |
| sizeof(config_id)); |
| |
| return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", |
| config_id[0], config_id[1], config_id[2], config_id[3]); |
| } |
| |
| static void synaptics_rmi4_fwu_attn(struct synaptics_rmi4_data *rmi4_data, |
| unsigned char intr_mask) |
| { |
| if (fwu->intr_mask & intr_mask) |
| fwu_read_f34_flash_status(); |
| |
| return; |
| } |
| |
| static void synaptics_rmi4_fwu_work(struct work_struct *work) |
| { |
| fwu_start_reflash(); |
| } |
| |
| static int synaptics_rmi4_fwu_init(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char attr_count; |
| struct pdt_properties pdt_props; |
| |
| fwu = kzalloc(sizeof(*fwu), GFP_KERNEL); |
| if (!fwu) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for fwu\n", |
| __func__); |
| goto exit; |
| } |
| |
| fwu->fn_ptr = kzalloc(sizeof(*(fwu->fn_ptr)), GFP_KERNEL); |
| if (!fwu->fn_ptr) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for fn_ptr\n", |
| __func__); |
| retval = -ENOMEM; |
| goto exit_free_fwu; |
| } |
| |
| fwu->rmi4_data = rmi4_data; |
| fwu->fn_ptr->read = rmi4_data->i2c_read; |
| fwu->fn_ptr->write = rmi4_data->i2c_write; |
| fwu->fn_ptr->enable = rmi4_data->irq_enable; |
| |
| retval = fwu->fn_ptr->read(rmi4_data, |
| PDT_PROPS, |
| pdt_props.data, |
| sizeof(pdt_props.data)); |
| if (retval < 0) { |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read PDT properties, assuming 0x00\n", |
| __func__); |
| } else if (pdt_props.has_bsr) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Reflash for LTS not currently supported\n", |
| __func__); |
| goto exit_free_mem; |
| } |
| |
| retval = fwu_scan_pdt(); |
| if (retval < 0) |
| goto exit_free_mem; |
| |
| fwu->productinfo1 = rmi4_data->rmi4_mod_info.product_info[0]; |
| fwu->productinfo2 = rmi4_data->rmi4_mod_info.product_info[1]; |
| |
| memcpy(fwu->product_id, rmi4_data->rmi4_mod_info.product_id_string, |
| SYNAPTICS_RMI4_PRODUCT_ID_SIZE); |
| fwu->product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE] = 0; |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: F01 product info: 0x%04x 0x%04x\n", |
| __func__, fwu->productinfo1, fwu->productinfo2); |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: F01 product ID: %s\n", |
| __func__, fwu->product_id); |
| |
| retval = fwu_read_f34_queries(); |
| if (retval < 0) |
| goto exit_free_mem; |
| |
| fwu->initialized = true; |
| fwu->force_update = FORCE_UPDATE; |
| |
| retval = sysfs_create_bin_file(&rmi4_data->input_dev->dev.kobj, |
| &dev_attr_data); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to create sysfs bin file\n", |
| __func__); |
| goto exit_free_mem; |
| } |
| |
| for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) { |
| retval = sysfs_create_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to create sysfs attributes\n", |
| __func__); |
| retval = -ENODEV; |
| goto exit_remove_attrs; |
| } |
| } |
| |
| #ifdef INSIDE_FIRMWARE_UPDATE |
| fwu->fwu_workqueue = create_singlethread_workqueue("fwu_workqueue"); |
| INIT_DELAYED_WORK(&fwu->fwu_work, synaptics_rmi4_fwu_work); |
| queue_delayed_work(fwu->fwu_workqueue, |
| &fwu->fwu_work, |
| msecs_to_jiffies(1000)); |
| #endif |
| return 0; |
| |
| exit_remove_attrs: |
| for (attr_count--; attr_count >= 0; attr_count--) { |
| sysfs_remove_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| } |
| |
| sysfs_remove_bin_file(&rmi4_data->input_dev->dev.kobj, &dev_attr_data); |
| |
| exit_free_mem: |
| kfree(fwu->fn_ptr); |
| |
| exit_free_fwu: |
| kfree(fwu); |
| |
| exit: |
| return 0; |
| } |
| |
| static void synaptics_rmi4_fwu_remove(struct synaptics_rmi4_data *rmi4_data) |
| { |
| unsigned char attr_count; |
| |
| sysfs_remove_bin_file(&rmi4_data->input_dev->dev.kobj, &dev_attr_data); |
| |
| for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) { |
| sysfs_remove_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| } |
| |
| kfree(fwu->fn_ptr); |
| kfree(fwu); |
| |
| complete(&remove_complete); |
| |
| return; |
| } |
| |
| static int __init rmi4_fw_update_module_init(void) |
| { |
| synaptics_rmi4_new_function(RMI_FW_UPDATER, true, |
| synaptics_rmi4_fwu_init, |
| synaptics_rmi4_fwu_remove, |
| synaptics_rmi4_fwu_attn); |
| return 0; |
| } |
| |
| static void __exit rmi4_fw_update_module_exit(void) |
| { |
| init_completion(&remove_complete); |
| synaptics_rmi4_new_function(RMI_FW_UPDATER, false, |
| synaptics_rmi4_fwu_init, |
| synaptics_rmi4_fwu_remove, |
| synaptics_rmi4_fwu_attn); |
| wait_for_completion(&remove_complete); |
| return; |
| } |
| |
| module_init(rmi4_fw_update_module_init); |
| module_exit(rmi4_fw_update_module_exit); |
| |
| MODULE_AUTHOR("Synaptics, Inc."); |
| MODULE_DESCRIPTION("RMI4 FW Update Module"); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(SYNAPTICS_RMI4_DRIVER_VERSION_STRING); |