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Change the way of loading touch firmware

Browse source 
Use request_firmware interface to load touch firmware from file system
on mannul touch FW upgrade.

Change-Id: I416f686c5222df4ec1755ef4a8e90c80748d2beb
Signed-off-by: Wenge Zhu <zhuwg1@motorola.com>
Reviewed-on: https://gerrit.mot.com/2463631
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Wenge Zhu 2022-12-16 17:41:19 +08:00 • committed by zhuwg1
commit abdc1edd49
2 changed files with 125 additions and 1 deletions
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122
drivers/input/touchscreen/zinitix_ztw62x_mmi/zinitix.c
View file

@ -49,6 +49,7 @@
#include <asm/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/version.h>
#include <linux/firmware.h>
#ifdef CONFIG_MACH_PXA_SAMSUNG
#include <linux/sec-common.h>
@ -1882,6 +1883,9 @@ retry_init:
(u8 *)&cap->reg_data_version, 2) < 0)
goto fail_init;
zinitix_printk("fw_version = 0x%x, fw_minor_version = 0x%x, reg_data_version = 0x%x\n",
cap->fw_version, cap->fw_minor_version, cap->reg_data_version);
#if TOUCH_ONESHOT_UPGRADE
if ((checkMode == NULL) &&(ts_check_need_upgrade(info, cap->fw_version,
cap->fw_minor_version, cap->reg_data_version) == true) && (info->checkUMSmode == false)) {
@ -2923,9 +2927,121 @@ static inline void set_default_result(struct bt541_ts_info *info)
strncat(info->factory_info->cmd_result, &delim, 1);
}
static int zinitix_read_file_request_firmware(char *file_name, u8 **file_buf)
{
int ret = 0;
const struct firmware *fw = NULL;
char fwname[FILE_NAME_LENGTH] = { 0 };
snprintf(fwname, FILE_NAME_LENGTH, "%s", file_name);
ret = request_firmware(&fw, fwname, &misc_touch_dev->client->dev);
if (0 == ret) {
zinitix_printk("firmware(%s) request successfully\n", fwname);
*file_buf = vmalloc(fw->size);
if (NULL == *file_buf) {
zinitix_printk("fw buffer vmalloc fail\n");
ret = -ENOMEM;
} else {
memcpy(*file_buf, fw->data, fw->size);
ret = fw->size;
}
} else {
zinitix_printk("firmware(%s) request fail,ret=%d\n", fwname, ret);
ret = -EIO;
}
if (fw != NULL) {
release_firmware(fw);
fw = NULL;
}
return ret;
}
static int zinitix_read_file(char *file_name, u8 **file_buf)
{
int ret = 0;
int count = 0;
retry:
ret = zinitix_read_file_request_firmware(file_name, file_buf);
if (ret < 0) {
zinitix_printk("get fw file(default) fail: count = %d\n", count);
if (++count < 3)
goto retry;
}
return ret;
}
#define MAX_FW_PATH 255
#define TSP_FW_FILENAME "zinitix_fw.bin"
#ifdef CONFIG_INPUT_TOUCHSCREEN_MMI
static void fw_update(void *device_data)
{
struct bt541_ts_info *info = (struct bt541_ts_info *)device_data;
struct i2c_client *client = info->client;
int ret = 0;
char result[16] = {0};
u8 *fw_file_buf = NULL;
set_default_result(info);
switch (info->factory_info->cmd_param[0]) {
case BUILT_IN:
ts_select_type_hw(info);
ret = ts_upgrade_sequence((u8*)m_pFirmware[m_FirmwareIdx]);
if(ret<0) {
info->factory_info->cmd_state = 3;
return;
}
break;
case UMS:
ret= zinitix_read_file(TSP_FW_FILENAME, &fw_file_buf);
if (ret != info->cap_info.ic_fw_size) {
dev_err(&client->dev, "invalid fw size!!\n");
goto error_upgrade;
}
dev_info(&client->dev, "ums fw is loaded!!\n");
info->checkUMSmode = true;
ret = ts_upgrade_sequence((u8 *)fw_file_buf);
info->checkUMSmode = false;
if(ret<0) {
dev_err(&client->dev, "fw upgrade fail!!\n");
goto error_upgrade;
}
break;
default:
dev_err(&client->dev, "invalid fw file type!!\n");
goto error_upgrade;
}
if (fw_file_buf) {
vfree(fw_file_buf);
fw_file_buf = NULL;
}
info->factory_info->cmd_state = 2;
snprintf(result, sizeof(result) , "%s", "OK");
set_cmd_result(info, result,
strnlen(result, sizeof(result)));
return;
error_upgrade:
if (fw_file_buf) {
vfree(fw_file_buf);
fw_file_buf = NULL;
}
info->factory_info->cmd_state = 3;
snprintf(result, sizeof(result) , "%s", "NG");
set_cmd_result(info, result, strnlen(result, sizeof(result)));
return;
}
#else
static void fw_update(void *device_data)
{
struct bt541_ts_info *info = (struct bt541_ts_info *)device_data;
@ -3016,6 +3132,11 @@ static void fw_update(void *device_data)
snprintf(result, sizeof(result) , "%s", "OK");
set_cmd_result(info, result,
strnlen(result, sizeof(result)));
if (buff) {
kfree(buff);
buff = NULL;
}
return;
if (fp != NULL) {
err_fw_size:
@ -3034,6 +3155,7 @@ not_support:
set_cmd_result(info, result, strnlen(result, sizeof(result)));
return;
}
#endif
static void get_fw_ver_bin(void *device_data)
{

4
drivers/input/touchscreen/zinitix_ztw62x_mmi/zinitix_touch.h
View file

@ -29,7 +29,7 @@
/* Upgrade Method*/
#define TOUCH_ONESHOT_UPGRADE 1
#define TOUCH_ONESHOT_UPGRADE 0
#define TOUCH_FORCE_UPGRADE 1
#define USE_CHECKSUM 0
@ -114,6 +114,8 @@
pr_err("bt541_ts : %s " fmt, __func__); \
} while (0);
#define FILE_NAME_LENGTH 128
struct bt541_ts_platform_data {
int gpio_reset;
int gpio_int;