input: touchscreen: Add firmware upgrade via sysfs entry
Add sysfs entry for firmware upgrade support in Goodix driver. Change-Id: If71d4020223547e0db425c9fd37819c6166efcab Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
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Shantanu Jain
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0647a86f8f
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52bf9de85b
2 changed files with 70 additions and 15 deletions
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@ -1523,12 +1523,63 @@ static ssize_t gtp_fw_name_store(struct device *dev,
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return size;
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}
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static ssize_t gtp_fw_upgrade_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct goodix_ts_data *ts = dev_get_drvdata(dev);
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return snprintf(buf, 2, "%d\n", ts->fw_loading);
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}
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static ssize_t gtp_fw_upgrade_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t size)
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{
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struct goodix_ts_data *ts = dev_get_drvdata(dev);
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unsigned long val;
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int ret;
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if (size > 2)
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return -EINVAL;
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ret = kstrtoul(buf, 10, &val);
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if (ret != 0)
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return ret;
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if (ts->gtp_is_suspend) {
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dev_err(&ts->client->dev,
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"Can't start fw upgrade. Device is in suspend state");
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return -EBUSY;
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}
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mutex_lock(&ts->input_dev->mutex);
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if (!ts->fw_loading && val) {
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disable_irq(ts->client->irq);
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ts->fw_loading = true;
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if (config_enabled(CONFIG_GT9XX_TOUCHPANEL_UPDATE)) {
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ret = gup_update_proc(NULL);
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if (ret == FAIL)
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dev_err(&ts->client->dev,
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"Fail to update GTP firmware\n");
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}
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ts->fw_loading = false;
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enable_irq(ts->client->irq);
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}
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mutex_unlock(&ts->input_dev->mutex);
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return size;
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}
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static DEVICE_ATTR(fw_name, (S_IRUGO | S_IWUSR | S_IWGRP),
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gtp_fw_name_show,
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gtp_fw_name_store);
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static DEVICE_ATTR(fw_upgrade, (S_IRUGO | S_IWUSR | S_IWGRP),
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gtp_fw_upgrade_show,
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gtp_fw_upgrade_store);
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static struct attribute *gtp_attrs[] = {
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&dev_attr_fw_name.attr,
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&dev_attr_fw_upgrade.attr,
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NULL
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};
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@ -1861,9 +1912,7 @@ static int goodix_ts_probe(struct i2c_client *client,
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return -EINVAL;
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}
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#if GTP_ESD_PROTECT
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i2c_connect_client = client;
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#endif
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
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dev_err(&client->dev, "GTP I2C not supported\n");
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@ -1915,18 +1964,17 @@ static int goodix_ts_probe(struct i2c_client *client,
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strlcpy(ts->fw_name, pdata->fw_name,
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strlen(pdata->fw_name) + 1);
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#ifdef CONFIG_GT9XX_TOUCHPANEL_UPDATE
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ret = gup_init_update_proc(ts);
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if (ret < 0) {
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dev_err(&client->dev,
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"GTP Create firmware update thread error.\n");
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goto exit_power_off;
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if (config_enabled(CONFIG_GT9XX_TOUCHPANEL_UPDATE)) {
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ret = gup_init_update_proc(ts);
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if (ret < 0) {
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dev_err(&client->dev,
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"GTP Create firmware update thread error\n");
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goto exit_power_off;
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}
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}
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#endif
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ret = gtp_init_panel(ts);
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if (ret < 0) {
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dev_err(&client->dev, "GTP init panel failed.\n");
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dev_err(&client->dev, "GTP init panel failed\n");
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ts->abs_x_max = GTP_MAX_WIDTH;
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ts->abs_y_max = GTP_MAX_HEIGHT;
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ts->int_trigger_type = GTP_INT_TRIGGER;
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@ -1934,7 +1982,7 @@ static int goodix_ts_probe(struct i2c_client *client,
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ret = gtp_request_input_dev(ts);
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if (ret) {
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dev_err(&client->dev, "GTP request input dev failed.\n");
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dev_err(&client->dev, "GTP request input dev failed\n");
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goto exit_free_inputdev;
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}
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input_set_drvdata(ts->input_dev, ts);
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@ -2117,6 +2165,14 @@ static int goodix_ts_suspend(struct device *dev)
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}
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mutex_lock(&ts->lock);
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if (ts->fw_loading) {
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dev_info(&ts->client->dev,
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"Fw upgrade in progress, can't go to suspend.");
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mutex_unlock(&ts->lock);
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return 0;
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}
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#if GTP_ESD_PROTECT
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gtp_esd_switch(ts->client, SWITCH_OFF);
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#endif
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@ -89,6 +89,7 @@ struct goodix_ts_data {
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u8 fw_error;
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bool power_on;
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struct mutex lock;
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bool fw_loading;
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struct regulator *avdd;
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struct regulator *vdd;
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struct regulator *vcc_i2c;
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@ -213,11 +214,9 @@ s32 init_wr_node(struct i2c_client *client);
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void uninit_wr_node(void);
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#endif
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#ifdef CONFIG_GT9XX_TOUCHPANEL_UPDATE
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extern u8 gup_init_update_proc(struct goodix_ts_data *ts);
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u8 gup_init_update_proc(struct goodix_ts_data *ts);
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s32 gup_enter_update_mode(struct i2c_client *client);
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void gup_leave_update_mode(struct i2c_client *client);
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s32 gup_update_proc(void *dir);
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extern struct i2c_client *i2c_connect_client;
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#endif
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#endif /* _GOODIX_GT9XX_H_ */
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