/*
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*
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* FocalTech fts TouchScreen driver.
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*
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* Copyright (c) 2012-2019, Focaltech Ltd. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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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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*/
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/*****************************************************************************
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*
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* File Name: focaltech_upgrade_ft5422.c
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*
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* Author: Focaltech Driver Team
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*
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* Created: 2016-08-15
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*
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* Abstract:
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*
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* Reference:
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*
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*****************************************************************************/
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/*****************************************************************************
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* 1.Included header files
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*****************************************************************************/
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#include "../focaltech_flash.h"
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/*****************************************************************************
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* Static function prototypes
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*****************************************************************************/
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static int fts_ft5422_init(u8 *buf, u32 len)
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{
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if ((!buf) || (len < FTS_MIN_LEN)) {
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FTS_ERROR("upg is null/fw length fail");
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return -EINVAL;
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}
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upgrade_func_ft5422.fwveroff = len - 2;
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return 0;
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}
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/************************************************************************
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* Name: fts_ft5422_upgrade
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* Brief:
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* Input:
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* Output:
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* Return: return 0 if success, otherwise return error code
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***********************************************************************/
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static int fts_ft5422_upgrade(u8 *buf, u32 len)
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{
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int ret = 0;
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u32 start_addr = 0;
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u8 cmd[4] = { 0 };
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int ecc_in_host = 0;
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int ecc_in_tp = 0;
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if (NULL == buf) {
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FTS_ERROR("fw buf is null");
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return -EINVAL;
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}
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if ((len < FTS_MIN_LEN) || (len > (60 * 1024))) {
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FTS_ERROR("fw buffer len(%x) fail", len);
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return -EINVAL;
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}
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/* enter into upgrade environment */
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ret = fts_fwupg_enter_into_boot();
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if (ret < 0) {
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FTS_ERROR("enter into pramboot/bootloader fail,ret=%d", ret);
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goto fw_reset;
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}
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cmd[0] = FTS_CMD_FLASH_MODE;
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cmd[1] = FLASH_MODE_UPGRADE_VALUE;
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ret = fts_write(cmd, 2);
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if (ret < 0) {
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FTS_ERROR("upgrade mode(09) cmd write fail");
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goto fw_reset;
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}
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cmd[0] = FTS_CMD_DATA_LEN;
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cmd[1] = BYTE_OFF_16(len);
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cmd[2] = BYTE_OFF_8(len);
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cmd[3] = BYTE_OFF_0(len);
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ret = fts_write(cmd, FTS_CMD_DATA_LEN_LEN);
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if (ret < 0) {
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FTS_ERROR("data len cmd write fail");
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goto fw_reset;
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}
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ret = fts_fwupg_erase(FTS_REASE_APP_DELAY);
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if (ret < 0) {
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FTS_ERROR("erase cmd write fail");
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goto fw_reset;
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}
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/* write app */
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start_addr = upgrade_func_ft5422.appoff;
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ecc_in_host = fts_flash_write_buf(start_addr, buf, len, 1);
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if (ecc_in_host < 0 ) {
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FTS_ERROR("lcd initial code write fail");
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goto fw_reset;
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}
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/* ecc */
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ecc_in_tp = fts_fwupg_ecc_cal(start_addr, len);
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if (ecc_in_tp < 0 ) {
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FTS_ERROR("ecc read fail");
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goto fw_reset;
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}
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FTS_INFO("ecc in tp:%x, host:%x", ecc_in_tp, ecc_in_host);
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if (ecc_in_tp != ecc_in_host) {
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FTS_ERROR("ecc check fail");
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goto fw_reset;
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}
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FTS_INFO("upgrade success, reset to normal boot");
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ret = fts_fwupg_reset_in_boot();
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if (ret < 0) {
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FTS_ERROR("reset to normal boot fail");
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}
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msleep(200);
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return 0;
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fw_reset:
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FTS_INFO("upgrade fail, reset to normal boot");
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ret = fts_fwupg_reset_in_boot();
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if (ret < 0) {
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FTS_ERROR("reset to normal boot fail");
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}
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return -EIO;
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}
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struct upgrade_func upgrade_func_ft5422 = {
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.ctype = {0x02},
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.fwveroff = 0x0000,
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.fwcfgoff = 0xD780,
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.appoff = 0x0000,
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.pramboot_supported = false,
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.hid_supported = true,
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.init = fts_ft5422_init,
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.upgrade = fts_ft5422_upgrade,
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};
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