1863 lines
44 KiB
C
1863 lines
44 KiB
C
/*
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* Synaptics RMI4 touchscreen driver
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*
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* Copyright (C) 2012 Synaptics Incorporated
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*
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* Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com>
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* Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/firmware.h>
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#include <linux/string.h>
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#include <linux/input/synaptics_dsx.h>
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#include "synaptics_i2c_rmi4.h"
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#define DEBUG_FW_UPDATE
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#define SHOW_PROGRESS
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#define MAX_FIRMWARE_ID_LEN 10
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#define FORCE_UPDATE false
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#define INSIDE_FIRMWARE_UPDATE
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#define FW_IMAGE_OFFSET 0x100
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#define BOOTLOADER_ID_OFFSET 0
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#define FLASH_PROPERTIES_OFFSET 2
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#define BLOCK_SIZE_OFFSET 3
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#define FW_BLOCK_COUNT_OFFSET 5
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#define REG_MAP (1 << 0)
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#define UNLOCKED (1 << 1)
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#define HAS_CONFIG_ID (1 << 2)
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#define HAS_PERM_CONFIG (1 << 3)
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#define HAS_BL_CONFIG (1 << 4)
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#define HAS_DISP_CONFIG (1 << 5)
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#define HAS_CTRL1 (1 << 6)
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#define BLOCK_NUMBER_OFFSET 0
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#define BLOCK_DATA_OFFSET 2
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#define NAME_BUFFER_SIZE 128
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enum falsh_config_area {
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UI_CONFIG_AREA = 0x00,
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PERM_CONFIG_AREA = 0x01,
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BL_CONFIG_AREA = 0x02,
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DISP_CONFIG_AREA = 0x03
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};
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enum flash_command {
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CMD_WRITE_FW_BLOCK = 0x2,
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CMD_ERASE_ALL = 0x3,
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CMD_READ_CONFIG_BLOCK = 0x5,
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CMD_WRITE_CONFIG_BLOCK = 0x6,
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CMD_ERASE_CONFIG = 0x7,
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CMD_READ_SENSOR_ID = 0x8,
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CMD_ERASE_BL_CONFIG = 0x9,
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CMD_ERASE_DISP_CONFIG = 0xA,
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CMD_ENABLE_FLASH_PROG = 0xF
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};
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enum flash_area {
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NONE,
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UI_FIRMWARE,
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CONFIG_AREA
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};
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enum image_file_option {
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OPTION_BUILD_INFO = 0,
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OPTION_CONTAIN_BOOTLOADER = 1,
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};
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#define SLEEP_MODE_NORMAL (0x00)
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#define SLEEP_MODE_SENSOR_SLEEP (0x01)
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#define SLEEP_MODE_RESERVED0 (0x02)
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#define SLEEP_MODE_RESERVED1 (0x03)
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#define ENABLE_WAIT_MS (1 * 1000)
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#define WRITE_WAIT_MS (3 * 1000)
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#define ERASE_WAIT_MS (5 * 1000)
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#define RESET_WAIT_MS (500)
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#define POLLING_MODE 0
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#define SLEEP_TIME_US 50
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static ssize_t fwu_sysfs_show_image(struct file *data_file,
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struct kobject *kobj, struct bin_attribute *attributes,
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char *buf, loff_t pos, size_t count);
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static ssize_t fwu_sysfs_store_image(struct file *data_file,
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struct kobject *kobj, struct bin_attribute *attributes,
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char *buf, loff_t pos, size_t count);
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static ssize_t fwu_sysfs_force_reflash_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_do_reflash_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_write_config_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_read_config_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_config_area_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_image_size_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count);
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static ssize_t fwu_sysfs_block_size_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_firmware_block_count_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_configuration_block_count_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_perm_config_block_count_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_bl_config_block_count_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_disp_config_block_count_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t fwu_sysfs_config_id_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static int fwu_wait_for_idle(int timeout_ms);
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struct image_header_data {
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union {
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struct {
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/* 0x00-0x0F */
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unsigned char file_checksum[4];
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unsigned char reserved_04;
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unsigned char reserved_05;
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unsigned char options_firmware_id:1;
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unsigned char options_contain_bootloader:1;
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unsigned char options_reserved:6;
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unsigned char bootloader_version;
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unsigned char firmware_size[4];
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unsigned char config_size[4];
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/* 0x10-0x1F */
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unsigned char product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE];
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unsigned char reserved_1a;
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unsigned char reserved_1b;
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unsigned char reserved_1c;
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unsigned char reserved_1d;
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unsigned char product_info[SYNAPTICS_RMI4_PRODUCT_INFO_SIZE];
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/* 0x20-0x2F */
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unsigned char reserved_20_2f[0x10];
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/* 0x30-0x3F */
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unsigned char ds_firmware_id[0x10];
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/* 0x40-0x4F */
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unsigned char ds_customize_info[10];
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unsigned char reserved_4a_4f[6];
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/* 0x50-0x53*/
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unsigned char firmware_id[4];
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} __packed;
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unsigned char data[54];
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};
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};
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struct image_header {
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unsigned int checksum;
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unsigned int image_size;
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unsigned int config_size;
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unsigned char options;
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unsigned char bootloader_version;
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unsigned char product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE + 1];
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unsigned char product_info[SYNAPTICS_RMI4_PRODUCT_INFO_SIZE];
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unsigned int firmware_id;
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bool is_contain_build_info;
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};
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struct pdt_properties {
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union {
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struct {
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unsigned char reserved_1:6;
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unsigned char has_bsr:1;
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unsigned char reserved_2:1;
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} __packed;
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unsigned char data[1];
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};
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};
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struct f01_device_status {
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union {
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struct {
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unsigned char status_code:4;
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unsigned char reserved:2;
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unsigned char flash_prog:1;
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unsigned char unconfigured:1;
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} __packed;
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unsigned char data[1];
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};
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};
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struct f01_device_control {
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union {
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struct {
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unsigned char sleep_mode:2;
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unsigned char nosleep:1;
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unsigned char reserved:2;
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unsigned char charger_connected:1;
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unsigned char report_rate:1;
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unsigned char configured:1;
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} __packed;
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unsigned char data[1];
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};
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};
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struct f34_flash_control {
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union {
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struct {
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unsigned char command:4;
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unsigned char status:3;
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unsigned char program_enabled:1;
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} __packed;
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unsigned char data[1];
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};
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};
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struct f34_flash_properties {
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union {
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struct {
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unsigned char regmap:1;
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unsigned char unlocked:1;
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unsigned char has_configid:1;
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unsigned char has_perm_config:1;
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unsigned char has_bl_config:1;
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unsigned char has_display_config:1;
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unsigned char has_blob_config:1;
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unsigned char reserved:1;
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} __packed;
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unsigned char data[1];
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};
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};
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struct synaptics_rmi4_fwu_handle {
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bool initialized;
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bool force_update;
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char product_id[SYNAPTICS_RMI4_PRODUCT_ID_SIZE + 1];
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unsigned int image_size;
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unsigned int data_pos;
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unsigned char intr_mask;
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unsigned char bootloader_id[2];
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unsigned char productinfo1;
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unsigned char productinfo2;
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unsigned char *ext_data_source;
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unsigned char *read_config_buf;
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const unsigned char *firmware_data;
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const unsigned char *config_data;
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unsigned short block_size;
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unsigned short fw_block_count;
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unsigned short config_block_count;
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unsigned short perm_config_block_count;
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unsigned short bl_config_block_count;
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unsigned short disp_config_block_count;
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unsigned short config_size;
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unsigned short config_area;
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unsigned short addr_f34_flash_control;
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unsigned short addr_f01_interrupt_register;
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struct synaptics_rmi4_fn_desc f01_fd;
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struct synaptics_rmi4_fn_desc f34_fd;
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struct synaptics_rmi4_exp_fn_ptr *fn_ptr;
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struct synaptics_rmi4_data *rmi4_data;
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struct f34_flash_control flash_control;
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struct f34_flash_properties flash_properties;
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struct workqueue_struct *fwu_workqueue;
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struct delayed_work fwu_work;
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char *firmware_name;
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};
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static struct bin_attribute dev_attr_data = {
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.attr = {
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.name = "data",
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.mode = (S_IRUGO | S_IWUGO),
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},
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.size = 0,
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.read = fwu_sysfs_show_image,
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.write = fwu_sysfs_store_image,
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};
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static struct device_attribute attrs[] = {
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__ATTR(forceflash, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_force_reflash_store),
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__ATTR(doreflash, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_do_reflash_store),
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__ATTR(writeconfig, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_write_config_store),
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__ATTR(readconfig, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_read_config_store),
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__ATTR(configarea, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_config_area_store),
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__ATTR(imagesize, S_IWUGO,
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synaptics_rmi4_show_error,
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fwu_sysfs_image_size_store),
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__ATTR(blocksize, S_IRUGO,
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fwu_sysfs_block_size_show,
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synaptics_rmi4_store_error),
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__ATTR(fwblockcount, S_IRUGO,
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fwu_sysfs_firmware_block_count_show,
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synaptics_rmi4_store_error),
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__ATTR(configblockcount, S_IRUGO,
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fwu_sysfs_configuration_block_count_show,
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synaptics_rmi4_store_error),
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__ATTR(permconfigblockcount, S_IRUGO,
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fwu_sysfs_perm_config_block_count_show,
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synaptics_rmi4_store_error),
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__ATTR(blconfigblockcount, S_IRUGO,
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fwu_sysfs_bl_config_block_count_show,
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synaptics_rmi4_store_error),
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__ATTR(dispconfigblockcount, S_IRUGO,
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fwu_sysfs_disp_config_block_count_show,
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synaptics_rmi4_store_error),
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__ATTR(config_id, S_IRUGO,
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fwu_sysfs_config_id_show,
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synaptics_rmi4_store_error),
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};
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static struct synaptics_rmi4_fwu_handle *fwu;
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static struct completion remove_complete;
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static unsigned int extract_uint(const unsigned char *ptr)
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{
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return (unsigned int)ptr[0] +
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(unsigned int)ptr[1] * 0x100 +
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(unsigned int)ptr[2] * 0x10000 +
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(unsigned int)ptr[3] * 0x1000000;
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}
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static unsigned int extract_uint_be(const unsigned char *ptr)
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{
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return (unsigned int)ptr[3] +
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(unsigned int)ptr[2] * 0x100 +
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(unsigned int)ptr[1] * 0x10000 +
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(unsigned int)ptr[0] * 0x1000000;
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}
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static void parse_header(struct image_header *header,
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const unsigned char *fw_image)
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{
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struct image_header_data *data = (struct image_header_data *)fw_image;
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header->checksum = extract_uint(data->file_checksum);
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header->bootloader_version = data->bootloader_version;
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header->image_size = extract_uint(data->firmware_size);
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header->config_size = extract_uint(data->config_size);
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memcpy(header->product_id, data->product_id,
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sizeof(data->product_id));
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header->product_id[sizeof(data->product_info)] = 0;
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memcpy(header->product_info, data->product_info,
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sizeof(data->product_info));
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header->is_contain_build_info =
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(data->options_firmware_id == (1 << OPTION_BUILD_INFO));
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if (header->is_contain_build_info) {
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header->firmware_id = extract_uint(data->firmware_id);
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dev_info(&fwu->rmi4_data->i2c_client->dev,
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"%s Firwmare build id %d\n", __func__,
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header->firmware_id);
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}
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#ifdef DEBUG_FW_UPDATE
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dev_info(&fwu->rmi4_data->i2c_client->dev,
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"Firwmare size %d, config size %d\n",
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header->image_size,
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header->config_size);
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#endif
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return;
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}
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static int fwu_read_f01_device_status(struct f01_device_status *status)
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{
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int retval;
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retval = fwu->fn_ptr->read(fwu->rmi4_data,
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fwu->f01_fd.data_base_addr,
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status->data,
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sizeof(status->data));
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if (retval < 0) {
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dev_err(&fwu->rmi4_data->i2c_client->dev,
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"%s: Failed to read F01 device status\n",
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__func__);
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return retval;
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}
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return 0;
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}
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static int fwu_read_f34_queries(void)
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{
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int retval;
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unsigned char count = 4;
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unsigned char buf[10];
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struct i2c_client *i2c_client = fwu->rmi4_data->i2c_client;
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retval = fwu->fn_ptr->read(fwu->rmi4_data,
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fwu->f34_fd.query_base_addr + BOOTLOADER_ID_OFFSET,
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fwu->bootloader_id,
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sizeof(fwu->bootloader_id));
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if (retval < 0) {
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dev_err(&i2c_client->dev,
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"%s: Failed to read bootloader ID\n",
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__func__);
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return retval;
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}
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retval = fwu->fn_ptr->read(fwu->rmi4_data,
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fwu->f34_fd.query_base_addr + FLASH_PROPERTIES_OFFSET,
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fwu->flash_properties.data,
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sizeof(fwu->flash_properties.data));
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if (retval < 0) {
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dev_err(&i2c_client->dev,
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"%s: Failed to read flash properties\n",
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__func__);
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return retval;
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}
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dev_info(&i2c_client->dev, "%s perm:%d, bl:%d, display:%d\n",
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__func__,
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fwu->flash_properties.has_perm_config,
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fwu->flash_properties.has_bl_config,
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fwu->flash_properties.has_display_config);
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if (fwu->flash_properties.has_perm_config)
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count += 2;
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if (fwu->flash_properties.has_bl_config)
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count += 2;
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if (fwu->flash_properties.has_display_config)
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count += 2;
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retval = fwu->fn_ptr->read(fwu->rmi4_data,
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fwu->f34_fd.query_base_addr + BLOCK_SIZE_OFFSET,
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buf,
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2);
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if (retval < 0) {
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dev_err(&i2c_client->dev,
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"%s: Failed to read block size info\n",
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__func__);
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return retval;
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}
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batohs(&fwu->block_size, &(buf[0]));
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retval = fwu->fn_ptr->read(fwu->rmi4_data,
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fwu->f34_fd.query_base_addr + FW_BLOCK_COUNT_OFFSET,
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buf,
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count);
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if (retval < 0) {
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dev_err(&i2c_client->dev,
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"%s: Failed to read block count info\n",
|
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__func__);
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return retval;
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}
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|
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batohs(&fwu->fw_block_count, &(buf[0]));
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batohs(&fwu->config_block_count, &(buf[2]));
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count = 4;
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if (fwu->flash_properties.has_perm_config) {
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batohs(&fwu->perm_config_block_count, &(buf[count]));
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count += 2;
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}
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|
|
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 POLLING_MODE
|
|
fwu_read_f34_flash_status();
|
|
#endif
|
|
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(struct image_header *header)
|
|
{
|
|
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;
|
|
}
|
|
|
|
/* 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,
|
|
"%s: Failed to read firmware ID (code %d).\n",
|
|
__func__, retval);
|
|
goto exit;
|
|
}
|
|
firmware_id[3] = 0;
|
|
deviceFirmwareID = extract_uint(firmware_id);
|
|
|
|
/* .img firmware id */
|
|
if (header->is_contain_build_info) {
|
|
dev_err(&i2c_client->dev,
|
|
"%s: Image option contains build info.\n",
|
|
__func__);
|
|
imageFirmwareID = header->firmware_id;
|
|
} else {
|
|
strptr = strnstr(fwu->firmware_name, "PR",
|
|
sizeof(fwu->firmware_name));
|
|
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_dbg(&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;
|
|
} else if (imageFirmwareID < deviceFirmwareID) {
|
|
flash_area = NONE;
|
|
dev_info(&i2c_client->dev,
|
|
"%s: Img fw is older than device fw. Skip fw update.\n",
|
|
__func__);
|
|
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,
|
|
"%s: Failed to read config ID (code %d).\n",
|
|
__func__, retval);
|
|
flash_area = NONE;
|
|
goto exit;
|
|
}
|
|
deviceConfigID = extract_uint_be(config_id);
|
|
|
|
dev_dbg(&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_dbg(&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_be(fwu->config_data);
|
|
|
|
dev_dbg(&i2c_client->dev,
|
|
"%s: Device config ID %d, .img config ID %d\n",
|
|
__func__, deviceConfigID, imageConfigID);
|
|
|
|
if (imageConfigID > deviceConfigID) {
|
|
flash_area = CONFIG_AREA;
|
|
goto exit;
|
|
}
|
|
|
|
exit:
|
|
kfree(imagePR);
|
|
if (flash_area == NONE)
|
|
dev_info(&i2c_client->dev,
|
|
"%s: Nothing needs to be updated\n", __func__);
|
|
else
|
|
dev_info(&i2c_client->dev,
|
|
"%s: Update %s block\n", __func__,
|
|
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 = 0;
|
|
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->rmi4_data->fw_image_name) {
|
|
retval = 0;
|
|
dev_err(&fwu->rmi4_data->i2c_client->dev,
|
|
"Firmware image name not given, skipping update\n");
|
|
goto exit;
|
|
}
|
|
|
|
if (fwu->ext_data_source)
|
|
fw_image = fwu->ext_data_source;
|
|
else {
|
|
fwu->firmware_name = kcalloc(NAME_BUFFER_SIZE,
|
|
sizeof(char), GFP_KERNEL);
|
|
if (!fwu->firmware_name) {
|
|
dev_err(&fwu->rmi4_data->i2c_client->dev,
|
|
"%s Failed to allocate firmware name (%d).\n",
|
|
__func__, NAME_BUFFER_SIZE);
|
|
retval = -ENOMEM;
|
|
goto memory_exit;
|
|
}
|
|
|
|
snprintf(fwu->firmware_name, NAME_BUFFER_SIZE, "%s",
|
|
fwu->rmi4_data->fw_image_name);
|
|
dev_info(&fwu->rmi4_data->i2c_client->dev,
|
|
"%s: Requesting firmware image %s\n",
|
|
__func__, fwu->firmware_name);
|
|
|
|
retval = request_firmware(&fw_entry,
|
|
fwu->firmware_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__,
|
|
fwu->firmware_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(&header);
|
|
|
|
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:
|
|
kfree(fwu->firmware_name);
|
|
memory_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_force_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;
|
|
}
|
|
|
|
fwu->force_update = true;
|
|
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_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[4];
|
|
/* 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
|
|
|
|
init_completion(&remove_complete);
|
|
|
|
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)
|
|
{
|
|
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 v2");
|