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[76.87.77.78]) by smtp.gmail.com with ESMTPSA id i2sm14721568pjd.21.2021.01.17.15.44.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 15:44:48 -0800 (PST) From: Roderick Colenbrander To: Jiri Kosina , Benjamin Tissoires Cc: linux-input@vger.kernel.org, Chris Ye , Roderick Colenbrander Subject: [PATCH v4 04/13] HID: playstation: add DualSense touchpad support. Date: Sun, 17 Jan 2021 15:44:26 -0800 Message-Id: <20210117234435.180294-5-roderick@gaikai.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210117234435.180294-1-roderick@gaikai.com> References: <20210117234435.180294-1-roderick@gaikai.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Roderick Colenbrander Implement support for DualSense touchpad as a separate input device. Signed-off-by: Roderick Colenbrander --- drivers/hid/hid-playstation.c | 66 +++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index c5c450fc25db..64d6d736c435 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -60,9 +60,21 @@ struct ps_device { #define DS_STATUS_CHARGING GENMASK(7, 4) #define DS_STATUS_CHARGING_SHIFT 4 +/* + * Status of a DualSense touch point contact. + * Contact IDs, with highest bit set are 'inactive' + * and any associated data is then invalid. + */ +#define DS_TOUCH_POINT_INACTIVE BIT(7) + +/* DualSense hardware limits */ +#define DS_TOUCHPAD_WIDTH 1920 +#define DS_TOUCHPAD_HEIGHT 1080 + struct dualsense { struct ps_device base; struct input_dev *gamepad; + struct input_dev *touchpad; }; struct dualsense_touch_point { @@ -272,6 +284,34 @@ static int ps_get_report(struct hid_device *hdev, uint8_t report_id, uint8_t *bu return 0; } +static struct input_dev *ps_touchpad_create(struct hid_device *hdev, int width, int height, + unsigned int num_contacts) +{ + struct input_dev *touchpad; + int ret; + + touchpad = ps_allocate_input_dev(hdev, "Touchpad"); + if (IS_ERR(touchpad)) + return ERR_CAST(touchpad); + + /* Map button underneath touchpad to BTN_LEFT. */ + input_set_capability(touchpad, EV_KEY, BTN_LEFT); + __set_bit(INPUT_PROP_BUTTONPAD, touchpad->propbit); + + input_set_abs_params(touchpad, ABS_MT_POSITION_X, 0, width - 1, 0, 0); + input_set_abs_params(touchpad, ABS_MT_POSITION_Y, 0, height - 1, 0, 0); + + ret = input_mt_init_slots(touchpad, num_contacts, INPUT_MT_POINTER); + if (ret) + return ERR_PTR(ret); + + ret = input_register_device(touchpad); + if (ret) + return ERR_PTR(ret); + + return touchpad; +} + static int dualsense_get_mac_address(struct dualsense *ds) { uint8_t *buf; @@ -304,6 +344,7 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r uint8_t battery_data, battery_capacity, charging_status, value; int battery_status; unsigned long flags; + int i; /* * DualSense in USB uses the full HID report for reportID 1, but @@ -346,6 +387,25 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r input_report_key(ds->gamepad, BTN_MODE, ds_report->buttons[2] & DS_BUTTONS2_PS_HOME); input_sync(ds->gamepad); + for (i = 0; i < ARRAY_SIZE(ds_report->points); i++) { + struct dualsense_touch_point *point = &ds_report->points[i]; + bool active = (point->contact & DS_TOUCH_POINT_INACTIVE) ? false : true; + + input_mt_slot(ds->touchpad, i); + input_mt_report_slot_state(ds->touchpad, MT_TOOL_FINGER, active); + + if (active) { + int x = (point->x_hi << 8) | point->x_lo; + int y = (point->y_hi << 4) | point->y_lo; + + input_report_abs(ds->touchpad, ABS_MT_POSITION_X, x); + input_report_abs(ds->touchpad, ABS_MT_POSITION_Y, y); + } + } + input_mt_sync_frame(ds->touchpad); + input_report_key(ds->touchpad, BTN_LEFT, ds_report->buttons[2] & DS_BUTTONS2_TOUCHPAD); + input_sync(ds->touchpad); + battery_data = ds_report->status & DS_STATUS_BATTERY_CAPACITY; charging_status = (ds_report->status & DS_STATUS_CHARGING) >> DS_STATUS_CHARGING_SHIFT; @@ -422,6 +482,12 @@ static struct ps_device *dualsense_create(struct hid_device *hdev) goto err; } + ds->touchpad = ps_touchpad_create(hdev, DS_TOUCHPAD_WIDTH, DS_TOUCHPAD_HEIGHT, 2); + if (IS_ERR(ds->touchpad)) { + ret = PTR_ERR(ds->touchpad); + goto err; + } + ret = ps_device_register_battery(ps_dev); if (ret) goto err;