From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Henrik Rydberg <rydberg@bitmath.org>,
James Chen <james.chen@emc.com.tw>,
Johnny Chuang <johnny.chuang@emc.com.tw>,
Rob Herring <robh+dt@kernel.org>,
Scott Liu <scott.liu@emc.com.tw>,
David Heidelberg <david@ixit.cz>,
Dmitry Osipenko <digetx@gmail.com>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 01/10] input: elants: document some registers and values
Date: Sun, 26 Apr 2020 18:11:11 +0200 [thread overview]
Message-ID: <86fc067022c4a33c1e0cdd55be4f997faea43af3.1587916846.git.mirq-linux@rere.qmqm.pl> (raw)
In-Reply-To: <cover.1587916846.git.mirq-linux@rere.qmqm.pl>
Add information found in downstream kernels, to make the code less
magic.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/input/touchscreen/elants_i2c.c | 29 +++++++++++++++++++++-----
1 file changed, 24 insertions(+), 5 deletions(-)
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 14c577c16b16..b528bd687cca 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -79,7 +79,11 @@
#define HEADER_REPORT_10_FINGER 0x62
-/* Header (4 bytes) plus 3 fill 10-finger packets */
+/* Power state */
+#define PWR_STATE_DEEP_SLEEP 0
+#define PWR_STATE_NORMAL 1
+
+/* Header (4 bytes) plus 3 full 10-finger packets */
#define MAX_PACKET_SIZE 169
#define BOOT_TIME_DELAY_MS 50
@@ -89,10 +93,21 @@
#define E_ELAN_INFO_BC_VER 0x10
#define E_ELAN_INFO_TEST_VER 0xE0
#define E_ELAN_INFO_FW_ID 0xF0
+#define E_POWER_MODE 0x40
+#define E_POWER_STATE 0x50
+#define E_INFO_X_RES 0x60
+#define E_INFO_Y_RES 0x63
#define E_INFO_OSR 0xD6
#define E_INFO_PHY_SCAN 0xD7
#define E_INFO_PHY_DRIVER 0xD8
+/* FW write command, 0x54 0x?? 0x0, 0x01 */
+#define E_POWER_MODE_BATTERY 0x40
+#define E_POWER_MODE_AC 0x41
+#define E_POWER_MODE_USB 0x42
+#define E_POWER_STATE_SLEEP 0x50
+#define E_POWER_STATE_RESUME 0x58
+
#define MAX_RETRIES 3
#define MAX_FW_UPDATE_RETRIES 30
@@ -237,8 +252,8 @@ 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);
@@ -1357,7 +1372,9 @@ 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;
@@ -1394,7 +1411,9 @@ 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
next prev parent reply other threads:[~2020-04-26 16:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-26 16:11 [PATCH v4 00/10] input: elants: Support Asus TF300T touchscreen Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 02/10] input: elants: support old touch report format Michał Mirosław
2020-04-26 16:11 ` Michał Mirosław [this message]
2020-04-26 16:11 ` [PATCH v4 04/10] input: elants: override touchscreen info with DT properties Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 03/10] input: elants: remove unused axes Michał Mirosław
2020-04-26 16:35 ` Dmitry Osipenko
2020-04-26 17:29 ` Michał Mirosław
2020-04-26 17:45 ` Dmitry Osipenko
2020-04-26 17:58 ` Dmitry Osipenko
2020-04-26 18:15 ` Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 06/10] input: elants: read touchscreen size for EKTF3624 Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 05/10] input: elants: refactor elants_i2c_execute_command() Michał Mirosław
2020-04-26 16:24 ` Dmitry Osipenko
2020-04-26 17:40 ` Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 07/10] input: elants: support 0x66 reply opcode for reporting touches Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 08/10] dt-bindings: input: elants-i2c: Document common touchscreen properties Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 09/10] dt-bindings: input: elants-i2c: Document eKTF3624 Michał Mirosław
2020-04-26 16:11 ` [PATCH v4 10/10] dt-bindings: input: touchscreen: elants_i2c: convert to YAML Michał Mirosław
2020-04-27 21:14 ` Rob Herring
2020-04-28 14:08 ` Michał Mirosław
2020-04-29 1:38 ` Dmitry Osipenko
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