This series cleans up the driver a bit and implements changes needed to
support EKTF3624-based touchscreen used in Asus TF300T, Google Nexus 7
and similar Tegra3-based tablets.
---
v2: extended with Dmitry's patches (replaced v1 patches 3 and 4)
v3: rebased for v5.7-rc1
v4: rebased onto v5.7-rc2+ (current Linus' master)
update "remove unused axes" and "refactor
elants_i2c_execute_command()" patches after review
add David's patch converting DT binding to YAML
v5: rebased onto dtor/input/for-linus
v6: rebased onto newer dtor/input/for-linus
remove yet unused constants from patch 1
added a new drive-by cleanup (last patch)
v7: rebased onto current dtor/input/for-next
---
Dmitry Osipenko (1):
input: elants: support 0x66 reply opcode for reporting touches
Michał Mirosław (3):
input: elants: document some registers and values
input: elants: support old touch report format
input: elants: read touchscreen size for EKTF3624
drivers/input/touchscreen/elants_i2c.c | 149 +++++++++++++++++++++----
1 file changed, 127 insertions(+), 22 deletions(-)
--
2.20.1
Add information found in downstream kernels, to make the code less
magic.
Signed-off-by: Michał Mirosław <[email protected]>
Reviewed-by: Dmitry Osipenko <[email protected]>
Tested-by: Dmitry Osipenko <[email protected]>
---
drivers/input/touchscreen/elants_i2c.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 50c348297e38..d51cb910fba1 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -82,7 +82,7 @@
#define HEADER_REPORT_10_FINGER 0x62
-/* Header (4 bytes) plus 3 fill 10-finger packets */
+/* Header (4 bytes) plus 3 full 10-finger packets */
#define MAX_PACKET_SIZE 169
#define BOOT_TIME_DELAY_MS 50
@@ -97,6 +97,10 @@
#define E_INFO_PHY_SCAN 0xD7
#define E_INFO_PHY_DRIVER 0xD8
+/* FW write command, 0x54 0x?? 0x0, 0x01 */
+#define E_POWER_STATE_SLEEP 0x50
+#define E_POWER_STATE_RESUME 0x58
+
#define MAX_RETRIES 3
#define MAX_FW_UPDATE_RETRIES 30
@@ -269,8 +273,8 @@ static int elants_i2c_calibrate(struct elants_data *ts)
{
struct i2c_client *client = ts->client;
int ret, error;
- static const u8 w_flashkey[] = { 0x54, 0xC0, 0xE1, 0x5A };
- static const u8 rek[] = { 0x54, 0x29, 0x00, 0x01 };
+ static const u8 w_flashkey[] = { CMD_HEADER_WRITE, 0xC0, 0xE1, 0x5A };
+ static const u8 rek[] = { CMD_HEADER_WRITE, 0x29, 0x00, 0x01 };
static const u8 rek_resp[] = { CMD_HEADER_REK, 0x66, 0x66, 0x66 };
disable_irq(client->irq);
@@ -1388,7 +1392,9 @@ static int __maybe_unused elants_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct elants_data *ts = i2c_get_clientdata(client);
- const u8 set_sleep_cmd[] = { 0x54, 0x50, 0x00, 0x01 };
+ const u8 set_sleep_cmd[] = {
+ CMD_HEADER_WRITE, E_POWER_STATE_SLEEP, 0x00, 0x01
+ };
int retry_cnt;
int error;
@@ -1425,7 +1431,9 @@ static int __maybe_unused elants_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct elants_data *ts = i2c_get_clientdata(client);
- const u8 set_active_cmd[] = { 0x54, 0x58, 0x00, 0x01 };
+ const u8 set_active_cmd[] = {
+ CMD_HEADER_WRITE, E_POWER_STATE_RESUME, 0x00, 0x01
+ };
int retry_cnt;
int error;
--
2.20.1
On Sat, Sep 19, 2020 at 11:41:19PM +0200, Micha? Miros?aw wrote:
> This series cleans up the driver a bit and implements changes needed to
> support EKTF3624-based touchscreen used in Asus TF300T, Google Nexus 7
> and similar Tegra3-based tablets.
[...]
Ping? Should I resend? This got only cosmetic fixups and rebases through
last couple of iterations.
Best Regards
Micha? Miros?aw
30.09.2020 20:28, Michał Mirosław пишет:
> On Sat, Sep 19, 2020 at 11:41:19PM +0200, Michał Mirosław wrote:
>> This series cleans up the driver a bit and implements changes needed to
>> support EKTF3624-based touchscreen used in Asus TF300T, Google Nexus 7
>> and similar Tegra3-based tablets.
> [...]
>
> Ping? Should I resend? This got only cosmetic fixups and rebases through
> last couple of iterations.
+1 We want to get a working touchscreen on our ASUS devices :)
Please consider merging this series. The upstream Nexus 7 DT is already
preapared, now just need the two-line driver change to get the TS working.