aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/input/touchscreen/edt-ft5x06.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/input/touchscreen/edt-ft5x06.c')
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c110
1 files changed, 102 insertions, 8 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 1e18ca0d1b4e..702bfda7ee77 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -31,6 +31,7 @@
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/i2c.h>
+#include <linux/kernel.h>
#include <linux/uaccess.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
@@ -53,6 +54,11 @@
#define M09_REGISTER_NUM_X 0x94
#define M09_REGISTER_NUM_Y 0x95
+#define EV_REGISTER_THRESHOLD 0x40
+#define EV_REGISTER_GAIN 0x41
+#define EV_REGISTER_OFFSET_Y 0x45
+#define EV_REGISTER_OFFSET_X 0x46
+
#define NO_REGISTER 0xff
#define WORK_REGISTER_OPMODE 0x3c
@@ -73,6 +79,7 @@ enum edt_ver {
EDT_M06,
EDT_M09,
EDT_M12,
+ EV_FT,
GENERIC_FT,
};
@@ -81,6 +88,8 @@ struct edt_reg_addr {
int reg_report_rate;
int reg_gain;
int reg_offset;
+ int reg_offset_x;
+ int reg_offset_y;
int reg_num_x;
int reg_num_y;
};
@@ -106,6 +115,8 @@ struct edt_ft5x06_ts_data {
int threshold;
int gain;
int offset;
+ int offset_x;
+ int offset_y;
int report_rate;
int max_support_points;
@@ -190,6 +201,7 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
case EDT_M09:
case EDT_M12:
+ case EV_FT:
case GENERIC_FT:
cmd = 0x0;
offset = 3;
@@ -242,6 +254,10 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
x = ((buf[0] << 8) | buf[1]) & 0x0fff;
y = ((buf[2] << 8) | buf[3]) & 0x0fff;
+ /* The FT5x26 send the y coordinate first */
+ if (tsdata->version == EV_FT)
+ swap(x, y);
+
id = (buf[2] >> 4) & 0x0f;
down = type != TOUCH_EVENT_UP;
@@ -275,8 +291,10 @@ static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,
wrbuf[3] = wrbuf[0] ^ wrbuf[1] ^ wrbuf[2];
return edt_ft5x06_ts_readwrite(tsdata->client, 4,
wrbuf, 0, NULL);
+ /* fallthrough */
case EDT_M09:
case EDT_M12:
+ case EV_FT:
case GENERIC_FT:
wrbuf[0] = addr;
wrbuf[1] = value;
@@ -315,8 +333,10 @@ static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
}
break;
+ /* fallthrough */
case EDT_M09:
case EDT_M12:
+ case EV_FT:
case GENERIC_FT:
wrbuf[0] = addr;
error = edt_ft5x06_ts_readwrite(tsdata->client, 1,
@@ -339,9 +359,10 @@ struct edt_ft5x06_attribute {
u8 limit_high;
u8 addr_m06;
u8 addr_m09;
+ u8 addr_ev;
};
-#define EDT_ATTR(_field, _mode, _addr_m06, _addr_m09, \
+#define EDT_ATTR(_field, _mode, _addr_m06, _addr_m09, _addr_ev, \
_limit_low, _limit_high) \
struct edt_ft5x06_attribute edt_ft5x06_attr_##_field = { \
.dattr = __ATTR(_field, _mode, \
@@ -350,6 +371,7 @@ struct edt_ft5x06_attribute {
.field_offset = offsetof(struct edt_ft5x06_ts_data, _field), \
.addr_m06 = _addr_m06, \
.addr_m09 = _addr_m09, \
+ .addr_ev = _addr_ev, \
.limit_low = _limit_low, \
.limit_high = _limit_high, \
}
@@ -386,6 +408,10 @@ static ssize_t edt_ft5x06_setting_show(struct device *dev,
addr = attr->addr_m09;
break;
+ case EV_FT:
+ addr = attr->addr_ev;
+ break;
+
default:
error = -ENODEV;
goto out;
@@ -457,6 +483,10 @@ static ssize_t edt_ft5x06_setting_store(struct device *dev,
addr = attr->addr_m09;
break;
+ case EV_FT:
+ addr = attr->addr_ev;
+ break;
+
default:
error = -ENODEV;
goto out;
@@ -480,20 +510,28 @@ out:
/* m06, m09: range 0-31, m12: range 0-5 */
static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN,
- M09_REGISTER_GAIN, 0, 31);
+ M09_REGISTER_GAIN, EV_REGISTER_GAIN, 0, 31);
/* m06, m09: range 0-31, m12: range 0-16 */
static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET,
- M09_REGISTER_OFFSET, 0, 31);
+ M09_REGISTER_OFFSET, NO_REGISTER, 0, 31);
+/* m06, m09, m12: no supported, ev_ft: range 0-80 */
+static EDT_ATTR(offset_x, S_IWUSR | S_IRUGO, NO_REGISTER, NO_REGISTER,
+ EV_REGISTER_OFFSET_X, 0, 80);
+/* m06, m09, m12: no supported, ev_ft: range 0-80 */
+static EDT_ATTR(offset_y, S_IWUSR | S_IRUGO, NO_REGISTER, NO_REGISTER,
+ EV_REGISTER_OFFSET_Y, 0, 80);
/* m06: range 20 to 80, m09: range 0 to 30, m12: range 1 to 255... */
static EDT_ATTR(threshold, S_IWUSR | S_IRUGO, WORK_REGISTER_THRESHOLD,
- M09_REGISTER_THRESHOLD, 0, 255);
+ M09_REGISTER_THRESHOLD, EV_REGISTER_THRESHOLD, 0, 255);
/* m06: range 3 to 14, m12: (0x64: 100Hz) */
static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO, WORK_REGISTER_REPORT_RATE,
- NO_REGISTER, 0, 255);
+ NO_REGISTER, NO_REGISTER, 0, 255);
static struct attribute *edt_ft5x06_attrs[] = {
&edt_ft5x06_attr_gain.dattr.attr,
&edt_ft5x06_attr_offset.dattr.attr,
+ &edt_ft5x06_attr_offset_x.dattr.attr,
+ &edt_ft5x06_attr_offset_y.dattr.attr,
&edt_ft5x06_attr_threshold.dattr.attr,
&edt_ft5x06_attr_report_rate.dattr.attr,
NULL
@@ -605,8 +643,15 @@ static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
tsdata->threshold);
edt_ft5x06_register_write(tsdata, reg_addr->reg_gain,
tsdata->gain);
- edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,
- tsdata->offset);
+ if (reg_addr->reg_offset != NO_REGISTER)
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,
+ tsdata->offset);
+ if (reg_addr->reg_offset_x != NO_REGISTER)
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_x,
+ tsdata->offset_x);
+ if (reg_addr->reg_offset_y != NO_REGISTER)
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_y,
+ tsdata->offset_y);
if (reg_addr->reg_report_rate != NO_REGISTER)
edt_ft5x06_register_write(tsdata, reg_addr->reg_report_rate,
tsdata->report_rate);
@@ -867,6 +912,16 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
case 0x5a: /* Solomon Goldentek Display */
snprintf(model_name, EDT_NAME_LEN, "GKTW50SCED1R0");
break;
+ case 0x59: /* Evervision Display with FT5xx6 TS */
+ tsdata->version = EV_FT;
+ error = edt_ft5x06_ts_readwrite(client, 1, "\x53",
+ 1, rdbuf);
+ if (error)
+ return error;
+ strlcpy(fw_version, rdbuf, 1);
+ snprintf(model_name, EDT_NAME_LEN,
+ "EVERVISION-FT5726NEi");
+ break;
default:
snprintf(model_name, EDT_NAME_LEN,
"generic ft5x06 (%02x)",
@@ -902,6 +957,18 @@ static void edt_ft5x06_ts_get_defaults(struct device *dev,
edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);
tsdata->offset = val;
}
+
+ error = device_property_read_u32(dev, "offset-x", &val);
+ if (!error) {
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_x, val);
+ tsdata->offset_x = val;
+ }
+
+ error = device_property_read_u32(dev, "offset-y", &val);
+ if (!error) {
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_y, val);
+ tsdata->offset_y = val;
+ }
}
static void
@@ -912,7 +979,15 @@ edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
tsdata->threshold = edt_ft5x06_register_read(tsdata,
reg_addr->reg_threshold);
tsdata->gain = edt_ft5x06_register_read(tsdata, reg_addr->reg_gain);
- tsdata->offset = edt_ft5x06_register_read(tsdata, reg_addr->reg_offset);
+ if (reg_addr->reg_offset != NO_REGISTER)
+ tsdata->offset =
+ edt_ft5x06_register_read(tsdata, reg_addr->reg_offset);
+ if (reg_addr->reg_offset_x != NO_REGISTER)
+ tsdata->offset_x = edt_ft5x06_register_read(tsdata,
+ reg_addr->reg_offset_x);
+ if (reg_addr->reg_offset_y != NO_REGISTER)
+ tsdata->offset_y = edt_ft5x06_register_read(tsdata,
+ reg_addr->reg_offset_y);
if (reg_addr->reg_report_rate != NO_REGISTER)
tsdata->report_rate = edt_ft5x06_register_read(tsdata,
reg_addr->reg_report_rate);
@@ -940,6 +1015,8 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
reg_addr->reg_report_rate = WORK_REGISTER_REPORT_RATE;
reg_addr->reg_gain = WORK_REGISTER_GAIN;
reg_addr->reg_offset = WORK_REGISTER_OFFSET;
+ reg_addr->reg_offset_x = NO_REGISTER;
+ reg_addr->reg_offset_y = NO_REGISTER;
reg_addr->reg_num_x = WORK_REGISTER_NUM_X;
reg_addr->reg_num_y = WORK_REGISTER_NUM_Y;
break;
@@ -950,15 +1027,30 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
reg_addr->reg_report_rate = NO_REGISTER;
reg_addr->reg_gain = M09_REGISTER_GAIN;
reg_addr->reg_offset = M09_REGISTER_OFFSET;
+ reg_addr->reg_offset_x = NO_REGISTER;
+ reg_addr->reg_offset_y = NO_REGISTER;
reg_addr->reg_num_x = M09_REGISTER_NUM_X;
reg_addr->reg_num_y = M09_REGISTER_NUM_Y;
break;
+ case EV_FT:
+ reg_addr->reg_threshold = EV_REGISTER_THRESHOLD;
+ reg_addr->reg_gain = EV_REGISTER_GAIN;
+ reg_addr->reg_offset = NO_REGISTER;
+ reg_addr->reg_offset_x = EV_REGISTER_OFFSET_X;
+ reg_addr->reg_offset_y = EV_REGISTER_OFFSET_Y;
+ reg_addr->reg_num_x = NO_REGISTER;
+ reg_addr->reg_num_y = NO_REGISTER;
+ reg_addr->reg_report_rate = NO_REGISTER;
+ break;
+
case GENERIC_FT:
/* this is a guesswork */
reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
reg_addr->reg_gain = M09_REGISTER_GAIN;
reg_addr->reg_offset = M09_REGISTER_OFFSET;
+ reg_addr->reg_offset_x = NO_REGISTER;
+ reg_addr->reg_offset_y = NO_REGISTER;
break;
}
}
@@ -1155,6 +1247,7 @@ static const struct edt_i2c_chip_data edt_ft6236_data = {
static const struct i2c_device_id edt_ft5x06_ts_id[] = {
{ .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data },
{ .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data },
+ { .name = "ev-ft5726", .driver_data = (long)&edt_ft5506_data },
/* Note no edt- prefix for compatibility with the ft6236.c driver */
{ .name = "ft6236", .driver_data = (long)&edt_ft6236_data },
{ /* sentinel */ }
@@ -1167,6 +1260,7 @@ static const struct of_device_id edt_ft5x06_of_match[] = {
{ .compatible = "edt,edt-ft5306", .data = &edt_ft5x06_data },
{ .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data },
{ .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data },
+ { .compatible = "evervision,ev-ft5726", .data = &edt_ft5506_data },
/* Note focaltech vendor prefix for compatibility with ft6236.c */
{ .compatible = "focaltech,ft6236", .data = &edt_ft6236_data },
{ /* sentinel */ }
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.