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Copy pathgoodix_brl_hw.c
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goodix_brl_hw.c
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/*
* Goodix Touchscreen Driver
* Copyright (C) 2020 - 2021 Goodix, Inc.
*
* Copyright (C) 2022 XiaoMi, Inc.
*
* 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 a reference
* to you, when you are integrating the GOODiX's CTP IC into your system,
* 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 "goodix_ts_core.h"
/* berlin_A SPI mode setting */
#define GOODIX_SPI_MODE_REG 0xC900
#define GOODIX_SPI_NORMAL_MODE_0 0x01
/* berlin_A D12 setting */
#define GOODIX_REG_CLK_STA0 0xD807
#define GOODIX_CLK_STA0_ENABLE 0xFF
#define GOODIX_REG_CLK_STA1 0xD806
#define GOODIX_CLK_STA1_ENABLE 0x77
#define GOODIX_REG_TRIM_D12 0xD006
#define GOODIX_TRIM_D12_LEVEL 0x3C
#define GOODIX_REG_RESET 0xD808
#define GOODIX_RESET_EN 0xFA
#define HOLD_CPU_REG_W 0x0002
#define HOLD_CPU_REG_R 0x2000
#define DEV_CONFIRM_VAL 0xAA
#define BOOTOPTION_ADDR 0x10000
#define FW_VERSION_INFO_ADDR_BRA 0x1000C
#define FW_VERSION_INFO_ADDR 0x10014
#define GOODIX_IC_INFO_MAX_LEN 1024
#define GOODIX_IC_INFO_ADDR_BRA 0x10068
#define GOODIX_IC_INFO_ADDR 0x10070
#define GOODIX_IC_AVDD_POWER_ONOFF 1
enum brl_request_code {
BRL_REQUEST_CODE_CONFIG = 0x01,
BRL_REQUEST_CODE_REF_ERR = 0x02,
BRL_REQUEST_CODE_RESET = 0x03,
BRL_REQUEST_CODE_CLOCK = 0x04,
};
static int brl_select_spi_mode(struct goodix_ts_core *cd)
{
int ret;
int i;
u8 w_value = GOODIX_SPI_NORMAL_MODE_0;
u8 r_value;
if (cd->bus->bus_type == GOODIX_BUS_TYPE_I2C ||
cd->bus->ic_type != IC_TYPE_BERLIN_A)
return 0;
for (i = 0; i < GOODIX_RETRY_5; i++) {
cd->hw_ops->write(cd, GOODIX_SPI_MODE_REG,
&w_value, 1);
ret = cd->hw_ops->read(cd, GOODIX_SPI_MODE_REG,
&r_value, 1);
if (!ret && r_value == w_value)
return 0;
}
ts_err("failed switch SPI mode after reset, ret:%d r_value:%02x", ret, r_value);
return -EINVAL;
}
static int brl_reset_after(struct goodix_ts_core *cd)
{
u8 reg_val[2] = {0};
u8 temp_buf[12] = {0};
int ret;
int retry;
if (cd->bus->ic_type != IC_TYPE_BERLIN_A)
return 0;
ts_debug("IN");
usleep_range(5000, 5100);
/* select spi mode */
ret = brl_select_spi_mode(cd);
if (ret < 0)
return ret;
/* hold cpu */
retry = GOODIX_RETRY_10;
while (retry--) {
reg_val[0] = 0x01;
reg_val[1] = 0x00;
ret = cd->hw_ops->write(cd, HOLD_CPU_REG_W, reg_val, 2);
ret |= cd->hw_ops->read(cd, HOLD_CPU_REG_R, &temp_buf[0], 4);
ret |= cd->hw_ops->read(cd, HOLD_CPU_REG_R, &temp_buf[4], 4);
ret |= cd->hw_ops->read(cd, HOLD_CPU_REG_R, &temp_buf[8], 4);
if (!ret && !memcmp(&temp_buf[0], &temp_buf[4], 4) &&
!memcmp(&temp_buf[4], &temp_buf[8], 4) &&
!memcmp(&temp_buf[0], &temp_buf[8], 4)) {
break;
}
}
if (retry < 0) {
ts_err("failed to hold cpu, status:%*ph", 12, temp_buf);
return -EINVAL;
}
/* enable sta0 clk */
retry = GOODIX_RETRY_5;
while (retry--) {
reg_val[0] = GOODIX_CLK_STA0_ENABLE;
ret = cd->hw_ops->write(cd, GOODIX_REG_CLK_STA0, reg_val, 1);
ret |= cd->hw_ops->read(cd, GOODIX_REG_CLK_STA0, temp_buf, 1);
if (!ret && temp_buf[0] == GOODIX_CLK_STA0_ENABLE)
break;
}
if (retry < 0) {
ts_err("failed to enable group0 clock, ret:%d status:%02x", ret, temp_buf[0]);
return -EINVAL;
}
/* enable sta1 clk */
retry = GOODIX_RETRY_5;
while (retry--) {
reg_val[0] = GOODIX_CLK_STA1_ENABLE;
ret = cd->hw_ops->write(cd, GOODIX_REG_CLK_STA1, reg_val, 1);
ret |= cd->hw_ops->read(cd, GOODIX_REG_CLK_STA1, temp_buf, 1);
if (!ret && temp_buf[0] == GOODIX_CLK_STA1_ENABLE)
break;
}
if (retry < 0) {
ts_err("failed to enable group1 clock, ret:%d status:%02x", ret, temp_buf[0]);
return -EINVAL;
}
/* set D12 level */
retry = GOODIX_RETRY_5;
while (retry--) {
reg_val[0] = GOODIX_TRIM_D12_LEVEL;
ret = cd->hw_ops->write(cd, GOODIX_REG_TRIM_D12, reg_val, 1);
ret |= cd->hw_ops->read(cd, GOODIX_REG_TRIM_D12, temp_buf, 1);
if (!ret && temp_buf[0] == GOODIX_TRIM_D12_LEVEL)
break;
}
if (retry < 0) {
ts_err("failed to set D12, ret:%d status:%02x", ret, temp_buf[0]);
return -EINVAL;
}
usleep_range(5000, 5100);
/* soft reset */
reg_val[0] = GOODIX_RESET_EN;
ret = cd->hw_ops->write(cd, GOODIX_REG_RESET, reg_val, 1);
if (ret < 0)
return ret;
/* select spi mode */
ret = brl_select_spi_mode(cd);
if (ret < 0)
return ret;
ts_debug("OUT");
return 0;
}
static int brl_power_on(struct goodix_ts_core *cd, bool on)
{
int ret = 0;
int avdd_gpio = cd->board_data.avdd_gpio;
int reset_gpio = cd->board_data.reset_gpio;
if (on) {
ts_info("iovdd enbaled before avdd");
ret = regulator_enable(cd->iovdd);
if (ret) {
ts_err("Failed to enable iovdd:%d", ret);
return ret;
}
ts_info("iovdd regulator enbaled success");
usleep_range(3000, 3100);
gpio_direction_output(avdd_gpio, 1);
ts_info("avdd gpio init success");
usleep_range(15000, 15100);
gpio_direction_output(reset_gpio, 1);
ts_info("reset gpio init success");
ret = brl_reset_after(cd);
if (ret < 0) {
ts_err("reset_after process failed");
gpio_direction_output(avdd_gpio, 0);
return ret;
}
msleep(GOODIX_NORMAL_RESET_DELAY_MS);
return 0;
}
/*power off process */
gpio_direction_output(reset_gpio, 0);
ret = regulator_disable(cd->iovdd);
if (ret)
ts_err("Failed to disable iovdd:%d", ret);
gpio_direction_output(avdd_gpio, 0);
usleep_range(10000, 11000);
return ret;
}
#define GOODIX_SLEEP_CMD 0x84
int brl_suspend(struct goodix_ts_core *cd)
{
struct goodix_ts_cmd sleep_cmd;
sleep_cmd.cmd = GOODIX_SLEEP_CMD;
sleep_cmd.len = 4;
if (cd->hw_ops->send_cmd(cd, &sleep_cmd))
ts_err("failed send sleep cmd");
return 0;
}
int brl_resume(struct goodix_ts_core *cd)
{
return cd->hw_ops->reset(cd, GOODIX_NORMAL_RESET_DELAY_MS);
}
#define GOODIX_GESTURE_CMD 0xA6
int brl_gesture(struct goodix_ts_core *cd, int gesture_type)
{
struct goodix_ts_cmd cmd;
cmd.cmd = GOODIX_GESTURE_CMD;
cmd.len = 6;
cmd.data[0] = 0x80;
cmd.data[1] = 0x10;
if((cd->fod_icon_status) || (cd->aod_status)){
cmd.data[0] = 0x80;
cmd.data[1] = 0x00;
}
if (cd->double_wakeup){
cmd.data[0] = 0x00;
cmd.data[1] = 0x10;
}
if(((cd->fod_icon_status) || (cd->aod_status)) && (cd->double_wakeup)){
cmd.data[0] = 0x00;
cmd.data[1] = 0x00;
}
ts_info("BRL cmd 0 is 0x%x",cmd.data[0]);
ts_info("BRL cmd 1 is 0x%x",cmd.data[1]);
if (cd->hw_ops->send_cmd(cd, &cmd))
ts_err("failed send gesture cmd");
return 0;
}
static int brl_dev_confirm(struct goodix_ts_core *cd)
{
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
int ret = 0;
int retry = GOODIX_RETRY_3;
u8 tx_buf[8] = {0};
u8 rx_buf[8] = {0};
memset(tx_buf, DEV_CONFIRM_VAL, sizeof(tx_buf));
while (retry--) {
ret = hw_ops->write(cd, BOOTOPTION_ADDR,
tx_buf, sizeof(tx_buf));
if (ret < 0)
return ret;
ret = hw_ops->read(cd, BOOTOPTION_ADDR,
rx_buf, sizeof(rx_buf));
if (ret < 0)
return ret;
if (!memcmp(tx_buf, rx_buf, sizeof(tx_buf)))
break;
usleep_range(5000, 5100);
}
if (retry < 0) {
ret = -EINVAL;
ts_err("device confirm failed, rx_buf:%*ph", 8, rx_buf);
}
return ret;
}
static int brl_reset(struct goodix_ts_core *cd, int delay)
{
ts_info("chip_reset");
gpio_direction_output(cd->board_data.reset_gpio, 0);
usleep_range(2000, 2100);
gpio_direction_output(cd->board_data.reset_gpio, 1);
if (delay < 20)
usleep_range(delay * 1000, delay * 1000 + 100);
else
msleep(delay);
return brl_select_spi_mode(cd);
}
static int brl_irq_enbale(struct goodix_ts_core *cd, bool enable)
{
if (enable && !atomic_cmpxchg(&cd->irq_enabled, 0, 1)) {
enable_irq(cd->irq);
ts_debug("Irq enabled");
return 0;
}
if (!enable && atomic_cmpxchg(&cd->irq_enabled, 1, 0)) {
disable_irq_nosync(cd->irq);
ts_debug("Irq disabled");
return 0;
}
ts_info("warnning: irq deepth inbalance!");
return 0;
}
static int brl_read(struct goodix_ts_core *cd, unsigned int addr,
unsigned char *data, unsigned int len)
{
struct goodix_bus_interface *bus = cd->bus;
return bus->read(bus->dev, addr, data, len);
}
static int brl_write(struct goodix_ts_core *cd, unsigned int addr,
unsigned char *data, unsigned int len)
{
struct goodix_bus_interface *bus = cd->bus;
return bus->write(bus->dev, addr, data, len);
}
/* command ack info */
#define CMD_ACK_IDLE 0x01
#define CMD_ACK_BUSY 0x02
#define CMD_ACK_BUFFER_OVERFLOW 0x03
#define CMD_ACK_CHECKSUM_ERROR 0x04
#define CMD_ACK_OK 0x80
#define GOODIX_CMD_RETRY 6
static int brl_send_cmd(struct goodix_ts_core *cd,
struct goodix_ts_cmd *cmd)
{
int ret, retry, i;
struct goodix_ts_cmd cmd_ack;
struct goodix_ic_info_misc *misc = &cd->ic_info.misc;
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
cmd->state = 0;
cmd->ack = 0;
goodix_append_checksum(&(cmd->buf[2]), cmd->len - 2,
CHECKSUM_MODE_U8_LE);
ts_debug("cmd data %*ph", cmd->len, &(cmd->buf[2]));
retry = 0;
while (retry++ < GOODIX_CMD_RETRY) {
ret = hw_ops->write(cd, misc->cmd_addr,
cmd->buf, sizeof(*cmd));
if (ret < 0) {
ts_err("failed write command");
return ret;
}
for (i = 0; i < GOODIX_CMD_RETRY; i++) {
/* check command result */
ret = hw_ops->read(cd, misc->cmd_addr,
cmd_ack.buf, sizeof(cmd_ack));
if (ret < 0) {
ts_err("failed read command ack, %d", ret);
return ret;
}
ts_debug("cmd ack data %*ph",
(int)sizeof(cmd_ack), cmd_ack.buf);
if (cmd_ack.ack == CMD_ACK_OK) {
usleep_range(2000, 2100);
return 0;
}
if (cmd_ack.ack == CMD_ACK_BUSY ||
cmd_ack.ack == 0x00) {
usleep_range(1000, 1100);
continue;
}
if (cmd_ack.ack == CMD_ACK_BUFFER_OVERFLOW)
usleep_range(10000, 11000);
usleep_range(1000, 1100);
break;
}
}
ts_err("failed get valid cmd ack");
return -EINVAL;
}
#pragma pack(1)
struct goodix_config_head {
union {
struct {
u8 panel_name[8];
u8 fw_pid[8];
u8 fw_vid[4];
u8 project_name[8];
u8 file_ver[2];
u32 cfg_id;
u8 cfg_ver;
u8 cfg_time[8];
u8 reserved[15];
u8 flag;
u16 cfg_len;
u8 cfg_num;
u16 checksum;
};
u8 buf[64];
};
};
#pragma pack()
#define CONFIG_CND_LEN 4
#define CONFIG_CMD_START 0x04
#define CONFIG_CMD_WRITE 0x05
#define CONFIG_CMD_EXIT 0x06
#define CONFIG_CMD_READ_START 0x07
#define CONFIG_CMD_READ_EXIT 0x08
#define CONFIG_CMD_STATUS_PASS 0x80
#define CONFIG_CMD_WAIT_RETRY 20
static int wait_cmd_status(struct goodix_ts_core *cd,
u8 target_status, int retry)
{
struct goodix_ts_cmd cmd_ack;
struct goodix_ic_info_misc *misc = &cd->ic_info.misc;
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
int i, ret;
for (i = 0; i < retry; i++) {
ret = hw_ops->read(cd, misc->cmd_addr, cmd_ack.buf,
sizeof(cmd_ack));
if (!ret && cmd_ack.state == target_status) {
ts_debug("status check pass");
return 0;
}
ts_debug("cmd buf %*ph", (int)sizeof(cmd_ack), cmd_ack.buf);
msleep(20);
}
ts_err("cmd status not ready, retry %d, ack 0x%x, status 0x%x, ret %d",
i, cmd_ack.ack, cmd_ack.state, ret);
return -EINVAL;
}
static int send_cfg_cmd(struct goodix_ts_core *cd,
struct goodix_ts_cmd *cfg_cmd)
{
int ret;
ret = cd->hw_ops->send_cmd(cd, cfg_cmd);
if (ret) {
ts_err("failed write cfg prepare cmd %d", ret);
return ret;
}
ret = wait_cmd_status(cd, CONFIG_CMD_STATUS_PASS,
CONFIG_CMD_WAIT_RETRY);
if (ret) {
ts_err("failed wait for fw ready for config, %d", ret);
return ret;
}
return 0;
}
static int brl_send_config(struct goodix_ts_core *cd, u8 *cfg, int len)
{
int ret;
u8 *tmp_buf;
struct goodix_ts_cmd cfg_cmd;
struct goodix_ic_info_misc *misc = &cd->ic_info.misc;
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
if (len > misc->fw_buffer_max_len) {
ts_err("config len exceed limit %d > %d",
len, misc->fw_buffer_max_len);
return -EINVAL;
}
tmp_buf = kzalloc(len, GFP_KERNEL);
if (!tmp_buf)
return -ENOMEM;
cfg_cmd.len = CONFIG_CND_LEN;
cfg_cmd.cmd = CONFIG_CMD_START;
ret = send_cfg_cmd(cd, &cfg_cmd);
if (ret) {
ts_err("failed write cfg prepare cmd %d", ret);
goto exit;
}
ts_debug("try send config to 0x%x, len %d", misc->fw_buffer_addr, len);
ret = hw_ops->write(cd, misc->fw_buffer_addr, cfg, len);
if (ret) {
ts_err("failed write config data, %d", ret);
goto exit;
}
ret = hw_ops->read(cd, misc->fw_buffer_addr, tmp_buf, len);
if (ret) {
ts_err("failed read back config data");
goto exit;
}
if (memcmp(cfg, tmp_buf, len)) {
ts_err("config data read back compare file");
ret = -EINVAL;
goto exit;
}
/* notify fw for recive config */
memset(cfg_cmd.buf, 0, sizeof(cfg_cmd));
cfg_cmd.len = CONFIG_CND_LEN;
cfg_cmd.cmd = CONFIG_CMD_WRITE;
ret = send_cfg_cmd(cd, &cfg_cmd);
if (ret)
ts_err("failed send config data ready cmd %d", ret);
exit:
memset(cfg_cmd.buf, 0, sizeof(cfg_cmd));
cfg_cmd.len = CONFIG_CND_LEN;
cfg_cmd.cmd = CONFIG_CMD_EXIT;
if (send_cfg_cmd(cd, &cfg_cmd)) {
ts_err("failed send config write end command");
ret = -EINVAL;
}
if (!ret) {
ts_info("success send config");
msleep(100);
}
kfree(tmp_buf);
return ret;
}
/*
* return: return config length on succes, other wise return < 0
**/
static int brl_read_config(struct goodix_ts_core *cd, u8 *cfg, int size)
{
int ret;
struct goodix_ts_cmd cfg_cmd;
struct goodix_ic_info_misc *misc = &cd->ic_info.misc;
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
struct goodix_config_head cfg_head;
if (!cfg)
return -EINVAL;
cfg_cmd.len = CONFIG_CND_LEN;
cfg_cmd.cmd = CONFIG_CMD_READ_START;
ret = send_cfg_cmd(cd, &cfg_cmd);
if (ret) {
ts_err("failed send config read prepare command");
return ret;
}
ret = hw_ops->read(cd, misc->fw_buffer_addr,
cfg_head.buf, sizeof(cfg_head));
if (ret) {
ts_err("failed read config head %d", ret);
goto exit;
}
if (checksum_cmp(cfg_head.buf, sizeof(cfg_head), CHECKSUM_MODE_U8_LE)) {
ts_err("config head checksum error");
ret = -EINVAL;
goto exit;
}
cfg_head.cfg_len = le16_to_cpu(cfg_head.cfg_len);
if (cfg_head.cfg_len > misc->fw_buffer_max_len ||
cfg_head.cfg_len > size) {
ts_err("cfg len exceed buffer size %d > %d", cfg_head.cfg_len,
misc->fw_buffer_max_len);
ret = -EINVAL;
goto exit;
}
memcpy(cfg, cfg_head.buf, sizeof(cfg_head));
ret = hw_ops->read(cd, misc->fw_buffer_addr + sizeof(cfg_head),
cfg + sizeof(cfg_head), cfg_head.cfg_len);
if (ret) {
ts_err("failed read cfg pack, %d", ret);
goto exit;
}
ts_info("config len %d", cfg_head.cfg_len);
if (checksum_cmp(cfg + sizeof(cfg_head),
cfg_head.cfg_len, CHECKSUM_MODE_U16_LE)) {
ts_err("config body checksum error");
ret = -EINVAL;
goto exit;
}
ts_info("success read config data: len %zu",
cfg_head.cfg_len + sizeof(cfg_head));
exit:
memset(cfg_cmd.buf, 0, sizeof(cfg_cmd));
cfg_cmd.len = CONFIG_CND_LEN;
cfg_cmd.cmd = CONFIG_CMD_READ_EXIT;
if (send_cfg_cmd(cd, &cfg_cmd)) {
ts_err("failed send config read finish command");
ret = -EINVAL;
}
if (ret)
return -EINVAL;
return cfg_head.cfg_len + sizeof(cfg_head);
}
/*
* return: 0 for no error.
* GOODIX_EBUS when encounter a bus error
* GOODIX_ECHECKSUM version checksum error
* GOODIX_EVERSION patch ID compare failed,
* in this case the sensorID is valid.
*/
static int brl_read_version(struct goodix_ts_core *cd,
struct goodix_fw_version *version)
{
int ret, i;
u32 fw_addr;
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
u8 buf[sizeof(struct goodix_fw_version)] = {0};
u8 temp_pid[8] = {0};
if (cd->bus->ic_type == IC_TYPE_BERLIN_A)
fw_addr = FW_VERSION_INFO_ADDR_BRA;
else
fw_addr = FW_VERSION_INFO_ADDR;
for (i = 0; i < 3; i++) {
ret = hw_ops->read(cd, fw_addr, buf, sizeof(buf));
if (ret) {
ts_info("read fw version: %d, retry %d", ret, i);
ret = -GOODIX_EBUS;
usleep_range(5000, 5100);
continue;
}
if (!checksum_cmp(buf, sizeof(buf), CHECKSUM_MODE_U8_LE))
break;
ts_info("invalid fw version: checksum error!");
ts_info("fw version:%*ph", (int)sizeof(buf), buf);
ret = -GOODIX_ECHECKSUM;
usleep_range(10000, 11000);
}
if (ret) {
ts_err("failed get valied fw version");
return ret;
}
memcpy(version, buf, sizeof(*version));
memcpy(temp_pid, version->rom_pid, sizeof(version->rom_pid));
ts_info("rom_pid:%s", temp_pid);
ts_info("rom_vid:%*ph", (int)sizeof(version->rom_vid),
version->rom_vid);
ts_info("pid:%s", version->patch_pid);
ts_info("vid:%*ph", (int)sizeof(version->patch_vid),
version->patch_vid);
ts_info("sensor_id:%d", version->sensor_id);
return 0;
}
#define LE16_TO_CPU(x) (x = le16_to_cpu(x))
#define LE32_TO_CPU(x) (x = le32_to_cpu(x))
static int convert_ic_info(struct goodix_ic_info *info, const u8 *data)
{
int i;
struct goodix_ic_info_version *version = &info->version;
struct goodix_ic_info_feature *feature = &info->feature;
struct goodix_ic_info_param *parm = &info->parm;
struct goodix_ic_info_misc *misc = &info->misc;
struct goodix_ic_info_other *other = &info->other;
info->length = le16_to_cpup((__le16 *)data);
data += 2;
memcpy(version, data, sizeof(*version));
version->config_id = le32_to_cpu(version->config_id);
data += sizeof(struct goodix_ic_info_version);
memcpy(feature, data, sizeof(*feature));
feature->freqhop_feature =
le16_to_cpu(feature->freqhop_feature);
feature->calibration_feature =
le16_to_cpu(feature->calibration_feature);
feature->gesture_feature =
le16_to_cpu(feature->gesture_feature);
feature->side_touch_feature =
le16_to_cpu(feature->side_touch_feature);
feature->stylus_feature =
le16_to_cpu(feature->stylus_feature);
data += sizeof(struct goodix_ic_info_feature);
parm->drv_num = *(data++);
parm->sen_num = *(data++);
parm->button_num = *(data++);
parm->force_num = *(data++);
parm->active_scan_rate_num = *(data++);
if (parm->active_scan_rate_num > MAX_SCAN_RATE_NUM) {
ts_err("invalid scan rate num %d > %d",
parm->active_scan_rate_num, MAX_SCAN_RATE_NUM);
return -EINVAL;
}
for (i = 0; i < parm->active_scan_rate_num; i++)
parm->active_scan_rate[i] =
le16_to_cpup((__le16 *)(data + i * 2));
data += parm->active_scan_rate_num * 2;
parm->mutual_freq_num = *(data++);
if (parm->mutual_freq_num > MAX_SCAN_FREQ_NUM) {
ts_err("invalid mntual freq num %d > %d",
parm->mutual_freq_num, MAX_SCAN_FREQ_NUM);
return -EINVAL;
}
for (i = 0; i < parm->mutual_freq_num; i++)
parm->mutual_freq[i] =
le16_to_cpup((__le16 *)(data + i * 2));
data += parm->mutual_freq_num * 2;
parm->self_tx_freq_num = *(data++);
if (parm->self_tx_freq_num > MAX_SCAN_FREQ_NUM) {
ts_err("invalid tx freq num %d > %d",
parm->self_tx_freq_num, MAX_SCAN_FREQ_NUM);
return -EINVAL;
}
for (i = 0; i < parm->self_tx_freq_num; i++)
parm->self_tx_freq[i] =
le16_to_cpup((__le16 *)(data + i * 2));
data += parm->self_tx_freq_num * 2;
parm->self_rx_freq_num = *(data++);
if (parm->self_rx_freq_num > MAX_SCAN_FREQ_NUM) {
ts_err("invalid rx freq num %d > %d",
parm->self_rx_freq_num, MAX_SCAN_FREQ_NUM);
return -EINVAL;
}
for (i = 0; i < parm->self_rx_freq_num; i++)
parm->self_rx_freq[i] =
le16_to_cpup((__le16 *)(data + i * 2));
data += parm->self_rx_freq_num * 2;
parm->stylus_freq_num = *(data++);
if (parm->stylus_freq_num > MAX_FREQ_NUM_STYLUS) {
ts_err("invalid stylus freq num %d > %d",
parm->stylus_freq_num, MAX_FREQ_NUM_STYLUS);
return -EINVAL;
}
for (i = 0; i < parm->stylus_freq_num; i++)
parm->stylus_freq[i] =
le16_to_cpup((__le16 *)(data + i * 2));
data += parm->stylus_freq_num * 2;
memcpy(misc, data, sizeof(*misc));
misc->cmd_addr = le32_to_cpu(misc->cmd_addr);
misc->cmd_max_len = le16_to_cpu(misc->cmd_max_len);
misc->cmd_reply_addr = le32_to_cpu(misc->cmd_reply_addr);
misc->cmd_reply_len = le16_to_cpu(misc->cmd_reply_len);
misc->fw_state_addr = le32_to_cpu(misc->fw_state_addr);
misc->fw_state_len = le16_to_cpu(misc->fw_state_len);
misc->fw_buffer_addr = le32_to_cpu(misc->fw_buffer_addr);
misc->fw_buffer_max_len = le16_to_cpu(misc->fw_buffer_max_len);
misc->frame_data_addr = le32_to_cpu(misc->frame_data_addr);
misc->frame_data_head_len = le16_to_cpu(misc->frame_data_head_len);
misc->fw_attr_len = le16_to_cpu(misc->fw_attr_len);
misc->fw_log_len = le16_to_cpu(misc->fw_log_len);
misc->stylus_struct_len = le16_to_cpu(misc->stylus_struct_len);
misc->mutual_struct_len = le16_to_cpu(misc->mutual_struct_len);
misc->self_struct_len = le16_to_cpu(misc->self_struct_len);
misc->noise_struct_len = le16_to_cpu(misc->noise_struct_len);
misc->touch_data_addr = le32_to_cpu(misc->touch_data_addr);
misc->touch_data_head_len = le16_to_cpu(misc->touch_data_head_len);
misc->point_struct_len = le16_to_cpu(misc->point_struct_len);
LE16_TO_CPU(misc->panel_x);
LE16_TO_CPU(misc->panel_y);
LE32_TO_CPU(misc->mutual_rawdata_addr);
LE32_TO_CPU(misc->mutual_diffdata_addr);
LE32_TO_CPU(misc->mutual_refdata_addr);
LE32_TO_CPU(misc->self_rawdata_addr);
LE32_TO_CPU(misc->self_diffdata_addr);
LE32_TO_CPU(misc->self_refdata_addr);
LE32_TO_CPU(misc->iq_rawdata_addr);
LE32_TO_CPU(misc->iq_refdata_addr);
LE32_TO_CPU(misc->im_rawdata_addr);
LE16_TO_CPU(misc->im_readata_len);
LE32_TO_CPU(misc->noise_rawdata_addr);
LE16_TO_CPU(misc->noise_rawdata_len);
LE32_TO_CPU(misc->stylus_rawdata_addr);
LE16_TO_CPU(misc->stylus_rawdata_len);
LE32_TO_CPU(misc->noise_data_addr);
LE32_TO_CPU(misc->esd_addr);
data += sizeof(*misc);
memcpy((u8 *)other, data, sizeof(*other));
LE16_TO_CPU(other->screen_max_x);
LE16_TO_CPU(other->screen_max_y);
return 0;
}
static void print_ic_info(struct goodix_ic_info *ic_info)
{
struct goodix_ic_info_version *version = &ic_info->version;
struct goodix_ic_info_feature *feature = &ic_info->feature;
struct goodix_ic_info_param *parm = &ic_info->parm;
struct goodix_ic_info_misc *misc = &ic_info->misc;
struct goodix_ic_info_other *other = &ic_info->other;
ts_info("ic_info_length: %d",
ic_info->length);
ts_info("info_customer_id: 0x%01X",
version->info_customer_id);
ts_info("info_version_id: 0x%01X",
version->info_version_id);
ts_info("ic_die_id: 0x%01X",
version->ic_die_id);
ts_info("ic_version_id: 0x%01X",
version->ic_version_id);
ts_info("config_id: 0x%4X",
version->config_id);
ts_info("config_version: 0x%01X",
version->config_version);
ts_info("frame_data_customer_id: 0x%01X",
version->frame_data_customer_id);
ts_info("frame_data_version_id: 0x%01X",
version->frame_data_version_id);
ts_info("touch_data_customer_id: 0x%01X",
version->touch_data_customer_id);
ts_info("touch_data_version_id: 0x%01X",
version->touch_data_version_id);
ts_info("freqhop_feature: 0x%04X",
feature->freqhop_feature);
ts_info("calibration_feature: 0x%04X",
feature->calibration_feature);
ts_info("gesture_feature: 0x%04X",
feature->gesture_feature);
ts_info("side_touch_feature: 0x%04X",
feature->side_touch_feature);
ts_info("stylus_feature: 0x%04X",
feature->stylus_feature);
ts_info("Drv*Sen,Button,Force num: %d x %d, %d, %d",
parm->drv_num, parm->sen_num,
parm->button_num, parm->force_num);
ts_info("Cmd: 0x%04X, %d",
misc->cmd_addr, misc->cmd_max_len);
ts_info("Cmd-Reply: 0x%04X, %d",
misc->cmd_reply_addr, misc->cmd_reply_len);
ts_info("FW-State: 0x%04X, %d",
misc->fw_state_addr, misc->fw_state_len);
ts_info("FW-Buffer: 0x%04X, %d",
misc->fw_buffer_addr, misc->fw_buffer_max_len);
ts_info("Touch-Data: 0x%04X, %d",
misc->touch_data_addr, misc->touch_data_head_len);
ts_info("point_struct_len: %d",
misc->point_struct_len);
ts_info("panel_x: %d",
misc->panel_x);
ts_info("panel_y: %d",
misc->panel_y);
ts_info("panel_max_x: %d", other->screen_max_x);
ts_info("panel_max_y: %d", other->screen_max_y);
ts_info("mutual_rawdata_addr: 0x%04X",
misc->mutual_rawdata_addr);
ts_info("mutual_diffdata_addr: 0x%04X",
misc->mutual_diffdata_addr);
ts_info("self_rawdata_addr: 0x%04X",
misc->self_rawdata_addr);
ts_info("self_diffdata_addr: 0x%04X",
misc->self_diffdata_addr);
ts_info("stylus_rawdata_addr: 0x%04X, %d",
misc->stylus_rawdata_addr, misc->stylus_rawdata_len);
ts_info("esd_addr: 0x%04X",
misc->esd_addr);
}
static int brl_get_ic_info(struct goodix_ts_core *cd,
struct goodix_ic_info *ic_info)
{
int ret, i;
u16 length = 0;
u32 ic_addr;
u8 afe_data[GOODIX_IC_INFO_MAX_LEN] = {0};
struct goodix_ts_hw_ops *hw_ops = cd->hw_ops;
if (cd->bus->ic_type == IC_TYPE_BERLIN_A)
ic_addr = GOODIX_IC_INFO_ADDR_BRA;
else
ic_addr = GOODIX_IC_INFO_ADDR;
for (i = 0; i < GOODIX_RETRY_3; i++) {
ret = hw_ops->read(cd, ic_addr,
(u8 *)&length, sizeof(length));
if (ret) {
ts_info("failed get ic info length, %d", ret);
usleep_range(5000, 5100);
continue;
}
length = le16_to_cpu(length);
if (length >= GOODIX_IC_INFO_MAX_LEN) {
ts_info("invalid ic info length %d, retry %d",
length, i);
continue;
}
ret = hw_ops->read(cd, ic_addr, afe_data, length);
if (ret) {
ts_info("failed get ic info data, %d", ret);
usleep_range(5000, 5100);
continue;
}
/* judge whether the data is valid */
if (is_risk_data((const uint8_t *)afe_data, length)) {
ts_info("fw info data invalid");
usleep_range(5000, 5100);
continue;
}
if (checksum_cmp((const uint8_t *)afe_data,
length, CHECKSUM_MODE_U8_LE)) {
ts_info("fw info checksum error!");
usleep_range(5000, 5100);
continue;
}
break;
}
if (i == GOODIX_RETRY_3) {
ts_err("failed get ic info");
return -EINVAL;
}
ret = convert_ic_info(ic_info, afe_data);
if (ret) {
ts_err("convert ic info encounter error");
return ret;
}
print_ic_info(ic_info);
/* check some key info */
if (!ic_info->misc.cmd_addr || !ic_info->misc.fw_buffer_addr ||
!ic_info->misc.touch_data_addr) {
ts_err("cmd_addr fw_buf_addr and touch_data_addr is null");
return -EINVAL;
}
return 0;
}
#define GOODIX_ESD_TICK_WRITE_DATA 0xAA
static int brl_esd_check(struct goodix_ts_core *cd)
{
int ret;
u32 esd_addr;
u8 esd_value;
if (!cd->ic_info.misc.esd_addr)
return 0;
esd_addr = cd->ic_info.misc.esd_addr;
ret = cd->hw_ops->read(cd, esd_addr, &esd_value, 1);
if (ret) {
ts_err("failed get esd value, %d", ret);
return ret;
}
if (esd_value == GOODIX_ESD_TICK_WRITE_DATA) {
ts_err("esd check failed, 0x%x", esd_value);
return -EINVAL;
}
esd_value = GOODIX_ESD_TICK_WRITE_DATA;
ret = cd->hw_ops->write(cd, esd_addr, &esd_value, 1);
if (ret) {
ts_err("failed refrash esd value");
return ret;
}
return 0;
}
#define IRQ_EVENT_HEAD_LEN 8
#define BYTES_PER_POINT 8
#define COOR_DATA_CHECKSUM_SIZE 2
#define GOODIX_TOUCH_EVENT 0x80
#define GOODIX_POWERON_FOD_EVENT 0x88
#define GOODIX_REQUEST_EVENT 0x40