Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Input: ektf2127 - add support for eKTF2132 touchscreen
The eKTF2132 is a touchscreen controller found, for example, in the Kobo
Aura ebook reader. It is similar to the ektf2127, but it uses a different
packet type to report touch events.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20201106112412.390724-3-j.neuschaefer@gmx.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
authored by
Jonathan Neuschäfer
and committed by
Dmitry Torokhov
af5689fb
cdab490e
+31
-1
+31
-1
drivers/input/touchscreen/ektf2127.c
+31
-1
drivers/input/touchscreen/ektf2127.c
···
28
28
#define EKTF2127_RESPONSE 0x52
29
29
#define EKTF2127_REQUEST 0x53
30
30
#define EKTF2127_HELLO 0x55
31
+
#define EKTF2127_REPORT2 0x5a
31
32
#define EKTF2127_REPORT 0x5d
32
33
#define EKTF2127_CALIB_DONE 0x66
33
34
···
96
95
input_sync(ts->input);
97
96
}
98
97
98
+
static void ektf2127_report2_contact(struct ektf2127_ts *ts, int slot,
99
+
const u8 *buf, bool active)
100
+
{
101
+
input_mt_slot(ts->input, slot);
102
+
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, active);
103
+
104
+
if (active) {
105
+
int x = (buf[0] & 0xf0) << 4 | buf[1];
106
+
int y = (buf[0] & 0x0f) << 8 | buf[2];
107
+
108
+
touchscreen_report_pos(ts->input, &ts->prop, x, y, true);
109
+
}
110
+
}
111
+
112
+
static void ektf2127_report2_event(struct ektf2127_ts *ts, const u8 *buf)
113
+
{
114
+
ektf2127_report2_contact(ts, 0, &buf[1], !!(buf[7] & 2));
115
+
ektf2127_report2_contact(ts, 1, &buf[4], !!(buf[7] & 4));
116
+
117
+
input_mt_sync_frame(ts->input);
118
+
input_sync(ts->input);
119
+
}
120
+
99
121
static irqreturn_t ektf2127_irq(int irq, void *dev_id)
100
122
{
101
123
struct ektf2127_ts *ts = dev_id;
···
135
111
switch (buf[0]) {
136
112
case EKTF2127_REPORT:
137
113
ektf2127_report_event(ts, buf);
114
+
break;
115
+
116
+
case EKTF2127_REPORT2:
117
+
ektf2127_report2_event(ts, buf);
138
118
break;
139
119
140
120
case EKTF2127_NOISE:
···
333
305
#ifdef CONFIG_OF
334
306
static const struct of_device_id ektf2127_of_match[] = {
335
307
{ .compatible = "elan,ektf2127" },
308
+
{ .compatible = "elan,ektf2132" },
336
309
{}
337
310
};
338
311
MODULE_DEVICE_TABLE(of, ektf2127_of_match);
···
341
312
342
313
static const struct i2c_device_id ektf2127_i2c_id[] = {
343
314
{ "ektf2127", 0 },
315
+
{ "ektf2132", 0 },
344
316
{}
345
317
};
346
318
MODULE_DEVICE_TABLE(i2c, ektf2127_i2c_id);
···
357
327
};
358
328
module_i2c_driver(ektf2127_driver);
359
329
360
-
MODULE_DESCRIPTION("ELAN eKTF2127 I2C Touchscreen Driver");
330
+
MODULE_DESCRIPTION("ELAN eKTF2127/eKTF2132 I2C Touchscreen Driver");
361
331
MODULE_AUTHOR("Michel Verlaan, Siebren Vroegindeweij");
362
332
MODULE_LICENSE("GPL");