diff options
-rw-r--r-- | drivers/hid/hid-playstation.c | 148 |
1 files changed, 147 insertions, 1 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 03f33dea5d93..319f400dd946 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -285,6 +285,8 @@ struct dualsense_output_report { #define DS4_INPUT_REPORT_USB 0x01 #define DS4_INPUT_REPORT_USB_SIZE 64 +#define DS4_OUTPUT_REPORT_USB 0x05 +#define DS4_OUTPUT_REPORT_USB_SIZE 32 #define DS4_FEATURE_REPORT_CALIBRATION 0x02 #define DS4_FEATURE_REPORT_CALIBRATION_SIZE 37 @@ -306,6 +308,9 @@ struct dualsense_output_report { /* Battery status within batery_status field. */ #define DS4_BATTERY_STATUS_FULL 11 +/* Flags for DualShock4 output report. */ +#define DS4_OUTPUT_VALID_FLAG0_MOTOR 0x01 + /* DualShock4 hardware limits */ #define DS4_ACC_RES_PER_G 8192 #define DS4_ACC_RANGE (4*DS_ACC_RES_PER_G) @@ -328,6 +333,14 @@ struct dualshock4 { bool sensor_timestamp_initialized; uint32_t prev_sensor_timestamp; uint32_t sensor_timestamp_us; + + bool update_rumble; + uint8_t motor_left; + uint8_t motor_right; + + struct work_struct output_worker; + bool output_worker_initialized; + void *output_report_dmabuf; }; struct dualshock4_touch_point { @@ -372,6 +385,45 @@ struct dualshock4_input_report_usb { } __packed; static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE); +/* Common data between Bluetooth and USB DualShock4 output reports. */ +struct dualshock4_output_report_common { + uint8_t valid_flag0; + uint8_t valid_flag1; + + uint8_t reserved; + + uint8_t motor_right; + uint8_t motor_left; + + uint8_t lightbar_red; + uint8_t lightbar_green; + uint8_t lightbar_blue; + uint8_t lightbar_blink_on; + uint8_t lightbar_blink_off; +} __packed; + +struct dualshock4_output_report_usb { + uint8_t report_id; /* 0x5 */ + struct dualshock4_output_report_common common; + uint8_t reserved[21]; +} __packed; +static_assert(sizeof(struct dualshock4_output_report_usb) == DS4_OUTPUT_REPORT_USB_SIZE); + +/* + * The DualShock4 has a main output report used to control most features. It is + * largely the same between Bluetooth and USB except for different headers and CRC. + * This structure hide the differences between the two to simplify sending output reports. + */ +struct dualshock4_output_report { + uint8_t *data; /* Start of data */ + uint8_t len; /* Size of output report */ + + /* Points to USB data payload in case for a USB report else NULL. */ + struct dualshock4_output_report_usb *usb; + /* Points to common section of report, so past any headers. */ + struct dualshock4_output_report_common *common; +}; + /* * Common gamepad buttons across DualShock 3 / 4 and DualSense. * Note: for device with a touchpad, touchpad button is not included @@ -399,6 +451,7 @@ static const struct {int x; int y; } ps_gamepad_hat_mapping[] = { }; static inline void dualsense_schedule_work(struct dualsense *ds); +static inline void dualshock4_schedule_work(struct dualshock4 *ds4); static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue); /* @@ -1692,6 +1745,49 @@ err_free: return ret; } +static void dualshock4_init_output_report(struct dualshock4 *ds4, + struct dualshock4_output_report *rp, void *buf) +{ + struct hid_device *hdev = ds4->base.hdev; + + if (hdev->bus == BUS_USB) { + struct dualshock4_output_report_usb *usb = buf; + + memset(usb, 0, sizeof(*usb)); + usb->report_id = DS4_OUTPUT_REPORT_USB; + + rp->data = buf; + rp->len = sizeof(*usb); + rp->usb = usb; + rp->common = &usb->common; + } +} + +static void dualshock4_output_worker(struct work_struct *work) +{ + struct dualshock4 *ds4 = container_of(work, struct dualshock4, output_worker); + struct dualshock4_output_report report; + struct dualshock4_output_report_common *common; + unsigned long flags; + + dualshock4_init_output_report(ds4, &report, ds4->output_report_dmabuf); + common = report.common; + + spin_lock_irqsave(&ds4->base.lock, flags); + + if (ds4->update_rumble) { + /* Select classic rumble style haptics and enable it. */ + common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_MOTOR; + common->motor_left = ds4->motor_left; + common->motor_right = ds4->motor_right; + ds4->update_rumble = false; + } + + spin_unlock_irqrestore(&ds4->base.lock, flags); + + hid_hw_output_report(ds4->base.hdev, report.data, report.len); +} + static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *report, u8 *data, int size) { @@ -1860,10 +1956,52 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * return 0; } +static int dualshock4_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect) +{ + struct hid_device *hdev = input_get_drvdata(dev); + struct dualshock4 *ds4 = hid_get_drvdata(hdev); + unsigned long flags; + + if (effect->type != FF_RUMBLE) + return 0; + + spin_lock_irqsave(&ds4->base.lock, flags); + ds4->update_rumble = true; + ds4->motor_left = effect->u.rumble.strong_magnitude / 256; + ds4->motor_right = effect->u.rumble.weak_magnitude / 256; + spin_unlock_irqrestore(&ds4->base.lock, flags); + + dualshock4_schedule_work(ds4); + return 0; +} + +static void dualshock4_remove(struct ps_device *ps_dev) +{ + struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base); + unsigned long flags; + + spin_lock_irqsave(&ds4->base.lock, flags); + ds4->output_worker_initialized = false; + spin_unlock_irqrestore(&ds4->base.lock, flags); + + cancel_work_sync(&ds4->output_worker); +} + +static inline void dualshock4_schedule_work(struct dualshock4 *ds4) +{ + unsigned long flags; + + spin_lock_irqsave(&ds4->base.lock, flags); + if (ds4->output_worker_initialized) + schedule_work(&ds4->output_worker); + spin_unlock_irqrestore(&ds4->base.lock, flags); +} + static struct ps_device *dualshock4_create(struct hid_device *hdev) { struct dualshock4 *ds4; struct ps_device *ps_dev; + uint8_t max_output_report_size; int ret; ds4 = devm_kzalloc(&hdev->dev, sizeof(*ds4), GFP_KERNEL); @@ -1882,8 +2020,16 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev) ps_dev->battery_capacity = 100; /* initial value until parse_report. */ ps_dev->battery_status = POWER_SUPPLY_STATUS_UNKNOWN; ps_dev->parse_report = dualshock4_parse_report; + ps_dev->remove = dualshock4_remove; + INIT_WORK(&ds4->output_worker, dualshock4_output_worker); + ds4->output_worker_initialized = true; hid_set_drvdata(hdev, ds4); + max_output_report_size = sizeof(struct dualshock4_output_report_usb); + ds4->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL); + if (!ds4->output_report_dmabuf) + return ERR_PTR(-ENOMEM); + ret = dualshock4_get_mac_address(ds4); if (ret) { hid_err(hdev, "Failed to get MAC address from DualShock4\n"); @@ -1907,7 +2053,7 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev) goto err; } - ds4->gamepad = ps_gamepad_create(hdev, NULL); + ds4->gamepad = ps_gamepad_create(hdev, dualshock4_play_effect); if (IS_ERR(ds4->gamepad)) { ret = PTR_ERR(ds4->gamepad); goto err; |