diff options
| -rw-r--r-- | drivers/input/touchscreen/elants_i2c.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index 14c577c16b16..6e962b54fea3 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -87,6 +87,7 @@ /* FW read command, 0x53 0x?? 0x0, 0x01 */ #define E_ELAN_INFO_FW_VER 0x00 #define E_ELAN_INFO_BC_VER 0x10 +#define E_ELAN_INFO_REK 0xE0 #define E_ELAN_INFO_TEST_VER 0xE0 #define E_ELAN_INFO_FW_ID 0xF0 #define E_INFO_OSR 0xD6 @@ -1010,7 +1011,7 @@ out: */ static ssize_t calibrate_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct elants_data *ts = i2c_get_clientdata(client); @@ -1056,8 +1057,32 @@ static ssize_t show_iap_mode(struct device *dev, "Normal" : "Recovery"); } +static ssize_t show_calibration_count(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + const u8 cmd[] = { CMD_HEADER_READ, E_ELAN_INFO_REK, 0x00, 0x01 }; + u8 resp[HEADER_SIZE]; + u16 rek_count; + int error; + + error = elants_i2c_execute_command(client, cmd, sizeof(cmd), + resp, sizeof(resp)); + if (error) { + dev_err(&client->dev, + "read ReK status error=%d, buf=%*phC\n", + error, (int)sizeof(resp), resp); + return sprintf(buf, "%d\n", error); + } + + rek_count = get_unaligned_be16(&resp[2]); + + return sprintf(buf, "0x%04x\n", rek_count); +} + static DEVICE_ATTR_WO(calibrate); static DEVICE_ATTR(iap_mode, S_IRUGO, show_iap_mode, NULL); +static DEVICE_ATTR(calibration_count, S_IRUGO, show_calibration_count, NULL); static DEVICE_ATTR(update_fw, S_IWUSR, NULL, write_update_fw); struct elants_version_attribute { @@ -1113,6 +1138,7 @@ static struct attribute *elants_attributes[] = { &dev_attr_calibrate.attr, &dev_attr_update_fw.attr, &dev_attr_iap_mode.attr, + &dev_attr_calibration_count.attr, &elants_ver_attr_fw_version.dattr.attr, &elants_ver_attr_hw_version.dattr.attr, |