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Tue, 25 Apr 2023 11:51:24 +0000 From: Javier Carrasco To: linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Henrik Rydberg , Javier Carrasco , Ulf Hansson , Hans Verkuil , Stephen Boyd , Sebastian Reichel , Linus Walleij , Jonathan Cameron , Uwe Kleine-g , Bastian Hecht , Michael Riesch Subject: [RFC v1 3/4] Input: st1232 - add virtual touchscreen and buttons handling Date: Tue, 25 Apr 2023 13:50:48 +0200 Message-Id: <20230425115049.870003-4-javier.carrasco@wolfvision.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230425115049.870003-1-javier.carrasco@wolfvision.net> References: <20230425115049.870003-1-javier.carrasco@wolfvision.net> X-ClientProxiedBy: VI1P194CA0055.EURP194.PROD.OUTLOOK.COM (2603:10a6:803:3c::44) To VE1PR08MB4974.eurprd08.prod.outlook.com (2603:10a6:803:111::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VE1PR08MB4974:EE_|DU2PR08MB10203:EE_ X-MS-Office365-Filtering-Correlation-Id: f22e31cf-818c-4348-fb95-08db458364a3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Javier Carrasco --- drivers/input/touchscreen/st1232.c | 41 ++++++++++++++++++++++-------- 1 file changed, 31 insertions(+), 10 deletions(-) diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c index f49566dc96f8..025f43c532d8 100644 --- a/drivers/input/touchscreen/st1232.c +++ b/drivers/input/touchscreen/st1232.c @@ -22,6 +22,7 @@ #include #include #include +#include #define ST1232_TS_NAME "st1232-ts" #define ST1633_TS_NAME "st1633-ts" @@ -56,6 +57,7 @@ struct st1232_ts_data { struct touchscreen_properties prop; struct dev_pm_qos_request low_latency_req; struct gpio_desc *reset_gpio; + struct ts_virtobj_map *map; const struct st_chip_info *chip_info; int read_buf_len; u8 *read_buf; @@ -133,6 +135,7 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) struct input_mt_pos pos[ST_TS_MAX_FINGERS]; u8 z[ST_TS_MAX_FINGERS]; int slots[ST_TS_MAX_FINGERS]; + bool button_slot[ST_TS_MAX_FINGERS] = {false}; int n_contacts = 0; int i; @@ -143,6 +146,11 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) unsigned int x = ((buf[0] & 0x70) << 4) | buf[1]; unsigned int y = ((buf[0] & 0x07) << 8) | buf[2]; + if (ts_virtobj_button_event(ts->map, ts->input_dev, x, y)) + button_slot[n_contacts] = true; + else if (!ts_virtobj_mt_on_touchscreen(ts->map, &x, &y)) + continue; + touchscreen_set_mt_pos(&pos[n_contacts], &ts->prop, x, y); @@ -158,12 +166,16 @@ static int st1232_ts_parse_and_report(struct st1232_ts_data *ts) for (i = 0; i < n_contacts; i++) { input_mt_slot(input, slots[i]); input_mt_report_slot_state(input, MT_TOOL_FINGER, true); - input_report_abs(input, ABS_MT_POSITION_X, pos[i].x); - input_report_abs(input, ABS_MT_POSITION_Y, pos[i].y); + if (!button_slot[i]) { + input_report_abs(input, ABS_MT_POSITION_X, pos[i].x); + input_report_abs(input, ABS_MT_POSITION_Y, pos[i].y); + } if (ts->chip_info->have_z) input_report_abs(input, ABS_MT_TOUCH_MAJOR, z[i]); } + if (!n_contacts) + ts_virtobj_button_release_pressed(ts->map, ts->input_dev); input_mt_sync_frame(input); input_sync(input); @@ -266,6 +278,11 @@ static int st1232_ts_probe(struct i2c_client *client) ts->client = client; ts->input_dev = input_dev; + /* map virtual objects if defined in the device tree */ + ts->map = ts_virtobj_map_objects(&ts->client->dev, ts->input_dev); + if (IS_ERR(ts->map)) + return PTR_ERR(ts->map); + ts->reset_gpio = devm_gpiod_get_optional(&client->dev, NULL, GPIOD_OUT_HIGH); if (IS_ERR(ts->reset_gpio)) { @@ -292,18 +309,22 @@ static int st1232_ts_probe(struct i2c_client *client) if (error) return error; - /* Read resolution from the chip */ - error = st1232_ts_read_resolution(ts, &max_x, &max_y); - if (error) { - dev_err(&client->dev, - "Failed to read resolution: %d\n", error); - return error; - } - if (ts->chip_info->have_z) input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, ts->chip_info->max_area, 0, 0); + if (ts_virtobj_mapped_touchscreen(ts->map)) { + ts_virtobj_retrieve_abs(ts->map, &max_x, &max_y); + } else { + /* Read resolution from the chip */ + error = st1232_ts_read_resolution(ts, &max_x, &max_y); + if (error) { + dev_err(&client->dev, + "Failed to read resolution: %d\n", error); + return error; + } + } + input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, max_x, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_Y,