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sec_mmi: debug read registers interface

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Adding debug interface to read arbitrary touch IC registers.

Change-Id: Id70d1d8d85608947c4c2663444471cac44cff212
Signed-off-by: Konstantin Makariev <hcv867@motorola.com>
Reviewed-on: https://gerrit.mot.com/1398906
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Konstantin Makariev 2019-08-07 12:10:41 -05:00 • committed by Konstantin Makariev
commit d98327444c
1 changed files with 69 additions and 0 deletions
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69
drivers/input/touchscreen/sec_mmi/sec_ts_only_vendor.c
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@ -54,18 +54,32 @@ static ssize_t sec_ts_gesture_status_show(struct device *dev,
static inline ssize_t sec_ts_show_error(struct device *dev,
struct device_attribute *attr, char *buf);
static ssize_t sec_ts_address_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size);
static ssize_t sec_ts_size_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size);
static ssize_t sec_ts_data_show(struct device *dev,
struct device_attribute *attr, char *buf);
static DEVICE_ATTR(sec_ts_reg, (S_IWUSR | S_IWGRP), NULL, sec_ts_reg_store);
static DEVICE_ATTR(sec_ts_regreadsize, (S_IWUSR | S_IWGRP), NULL, sec_ts_regreadsize_store);
static DEVICE_ATTR(sec_ts_enter_recovery, (S_IWUSR | S_IWGRP), NULL, sec_ts_enter_recovery_store);
static DEVICE_ATTR(sec_ts_regread, S_IRUGO, sec_ts_regread_show, NULL);
static DEVICE_ATTR(sec_ts_gesture_status, S_IRUGO, sec_ts_gesture_status_show, NULL);
static DEVICE_ATTR(address, (S_IWUSR | S_IWGRP), NULL, sec_ts_address_store);
static DEVICE_ATTR(size, (S_IWUSR | S_IWGRP), NULL, sec_ts_size_store);
static DEVICE_ATTR(data, S_IRUGO, sec_ts_data_show, NULL);
static struct attribute *cmd_attributes[] = {
&dev_attr_sec_ts_reg.attr,
&dev_attr_sec_ts_regreadsize.attr,
&dev_attr_sec_ts_enter_recovery.attr,
&dev_attr_sec_ts_regread.attr,
&dev_attr_sec_ts_gesture_status.attr,
&dev_attr_address.attr,
&dev_attr_size.attr,
&dev_attr_data.attr,
NULL,
};
@ -178,6 +192,61 @@ static ssize_t sec_ts_regreadsize_store(struct device *dev, struct device_attrib
return size;
}
#define MAX_DATA_SZ 1024
static ssize_t sec_ts_address_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size)
{
struct sec_ts_data *ts = dev_get_drvdata(dev);
int error;
long value;
error = kstrtol(buf, 0, &value);
if (error || value > MAX_DATA_SZ)
return -EINVAL;
lv1cmd = (u8)value;
input_info(true, &ts->client->dev, "%s: read address 0x%02X\n", __func__, lv1cmd);
return size;
}
static ssize_t sec_ts_size_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size)
{
struct sec_ts_data *ts = dev_get_drvdata(dev);
int error;
long value;
error = kstrtol(buf, 0, &value);
if (error)
return -EINVAL;
lv1_readsize = (unsigned int)value;
lv1_readoffset = 0;
lv1_readremain = 0;
input_info(true, &ts->client->dev, "%s: read size %u\n", __func__, lv1_readsize);
return size;
}
static ssize_t sec_ts_data_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sec_ts_data *ts = dev_get_drvdata(dev);
u8 buffer[MAX_DATA_SZ];
ssize_t length, blen = 0;
int i;
length = sec_ts_regread_show(dev, attr, buffer);
if (length != lv1_readsize)
return sprintf(buf, "error %zu reading %u bytes from reg addr=0x%02X\n", length, lv1_readsize, lv1cmd);
input_info(true, &ts->client->dev, "%s: %u bytes from reg addr=0x%02X\n", __func__, lv1_readsize, lv1cmd);
for (i = 0; i < length; i++)
blen += scnprintf(buf + blen, PAGE_SIZE - blen, "%02X ", buffer[i]);
blen += scnprintf(buf + blen, PAGE_SIZE - blen, "\n");
return blen;
}
static ssize_t sec_ts_enter_recovery_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size)
{
struct sec_ts_data *ts = dev_get_drvdata(dev);