diff options
Diffstat (limited to 'freed-ora/tags/f27/4.15.9-300.fc27.gnu/0010-Input-silead-Add-support-for-capactive-home-button-f.patch')
| -rw-r--r-- | freed-ora/tags/f27/4.15.9-300.fc27.gnu/0010-Input-silead-Add-support-for-capactive-home-button-f.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/freed-ora/tags/f27/4.15.9-300.fc27.gnu/0010-Input-silead-Add-support-for-capactive-home-button-f.patch b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/0010-Input-silead-Add-support-for-capactive-home-button-f.patch new file mode 100644 index 000000000..ce9be3760 --- /dev/null +++ b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/0010-Input-silead-Add-support-for-capactive-home-button-f.patch @@ -0,0 +1,114 @@ +From 33fc16fd8aa3684e19b1d1f0a712593e2e570ab1 Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Sun, 11 Jun 2017 21:24:50 +0200 +Subject: [PATCH 10/16] Input: silead: Add support for capactive home button + found on some x86 tablets + +On some x86 tablets with a silead touchscreen the windows logo on the +front is a capacitive home button. Touching this button results in a touch +with bits 12-15 of the Y coordinates set, while normally only the lower 12 +are used. + +Detect this and report a KEY_LEFTMETA press when this happens. Note for +now we only respond to the Y coordinate bits 12-15 containing 0x01, on some +tablets *without* a capacative button I've noticed these bits containing +0x04 when crossing the edges of the screen. + +Signed-off-by: Hans de Goede <hdegoede@redhat.com> +--- + drivers/input/touchscreen/silead.c | 45 ++++++++++++++++++++++++++++---------- + 1 file changed, 34 insertions(+), 11 deletions(-) + +diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c +index 0dbcf105f7db..c0ba40c09699 100644 +--- a/drivers/input/touchscreen/silead.c ++++ b/drivers/input/touchscreen/silead.c +@@ -56,7 +56,7 @@ + #define SILEAD_POINT_Y_MSB_OFF 0x01 + #define SILEAD_POINT_X_OFF 0x02 + #define SILEAD_POINT_X_MSB_OFF 0x03 +-#define SILEAD_TOUCH_ID_MASK 0xF0 ++#define SILEAD_EXTRA_DATA_MASK 0xF0 + + #define SILEAD_CMD_SLEEP_MIN 10000 + #define SILEAD_CMD_SLEEP_MAX 20000 +@@ -109,6 +109,8 @@ static int silead_ts_request_input_dev(struct silead_ts_data *data) + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED | + INPUT_MT_TRACK); + ++ input_set_capability(data->input, EV_KEY, KEY_LEFTMETA); ++ + data->input->name = SILEAD_TS_NAME; + data->input->phys = "input/ts"; + data->input->id.bustype = BUS_I2C; +@@ -139,7 +141,8 @@ static void silead_ts_read_data(struct i2c_client *client) + struct input_dev *input = data->input; + struct device *dev = &client->dev; + u8 *bufp, buf[SILEAD_TS_DATA_LEN]; +- int touch_nr, error, i; ++ int touch_nr, softbutton, error, i; ++ bool softbutton_pressed = false; + + error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_DATA, + SILEAD_TS_DATA_LEN, buf); +@@ -148,21 +151,40 @@ static void silead_ts_read_data(struct i2c_client *client) + return; + } + +- touch_nr = buf[0]; +- if (touch_nr > data->max_fingers) { ++ if (buf[0] > data->max_fingers) { + dev_warn(dev, "More touches reported then supported %d > %d\n", +- touch_nr, data->max_fingers); +- touch_nr = data->max_fingers; ++ buf[0], data->max_fingers); ++ buf[0] = data->max_fingers; + } + ++ touch_nr = 0; + bufp = buf + SILEAD_POINT_DATA_LEN; +- for (i = 0; i < touch_nr; i++, bufp += SILEAD_POINT_DATA_LEN) { +- /* Bits 4-7 are the touch id */ +- data->id[i] = (bufp[SILEAD_POINT_X_MSB_OFF] & +- SILEAD_TOUCH_ID_MASK) >> 4; +- touchscreen_set_mt_pos(&data->pos[i], &data->prop, ++ for (i = 0; i < buf[0]; i++, bufp += SILEAD_POINT_DATA_LEN) { ++ softbutton = (bufp[SILEAD_POINT_Y_MSB_OFF] & ++ SILEAD_EXTRA_DATA_MASK) >> 4; ++ ++ if (softbutton) { ++ /* ++ * For now only respond to softbutton == 0x01, some ++ * tablets *without* a capacative button send 0x04 ++ * when crossing the edges of the screen. ++ */ ++ if (softbutton == 0x01) ++ softbutton_pressed = true; ++ ++ continue; ++ } ++ ++ /* ++ * Bits 4-7 are the touch id, note not all models have ++ * hardware touch ids so atm we don't use these. ++ */ ++ data->id[touch_nr] = (bufp[SILEAD_POINT_X_MSB_OFF] & ++ SILEAD_EXTRA_DATA_MASK) >> 4; ++ touchscreen_set_mt_pos(&data->pos[touch_nr], &data->prop, + get_unaligned_le16(&bufp[SILEAD_POINT_X_OFF]) & 0xfff, + get_unaligned_le16(&bufp[SILEAD_POINT_Y_OFF]) & 0xfff); ++ touch_nr++; + } + + input_mt_assign_slots(input, data->slots, data->pos, touch_nr, 0); +@@ -178,6 +200,7 @@ static void silead_ts_read_data(struct i2c_client *client) + } + + input_mt_sync_frame(input); ++ input_report_key(input, KEY_LEFTMETA, softbutton_pressed); + input_sync(input); + } + +-- +2.13.0 + |
