diff options
author | Roderick Colenbrander <roderick@gaikai.com> | 2022-10-29 20:48:49 +0200 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2022-11-11 11:07:09 +0100 |
commit | 2d77474a239294786feb4fe9864c845fe92db239 (patch) | |
tree | 877827a0bd843d665d8ad885f3b48d04e57e135a /drivers/hid | |
parent | HID: playstation: add option to ignore CRC in ps_get_report. (diff) | |
download | linux-2d77474a239294786feb4fe9864c845fe92db239.tar.xz linux-2d77474a239294786feb4fe9864c845fe92db239.zip |
HID: playstation: add DualShock4 bluetooth support.
Add support for DualShock4 in Bluetooth mode. In Bluetooth, the device
is a bit strange in that after 'calibration' it switches sending all its
input data from a basic report (only containing buttons/sticks) to an
extended report, which also contains touchpad, motion sensors and other
data. The overall design of this code is similar to the DualSense code.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r-- | drivers/hid/hid-playstation.c | 170 |
1 files changed, 144 insertions, 26 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 81a12aafed17..a2f1bd1400a2 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -287,11 +287,17 @@ struct dualsense_output_report { #define DS4_INPUT_REPORT_USB 0x01 #define DS4_INPUT_REPORT_USB_SIZE 64 +#define DS4_INPUT_REPORT_BT 0x11 +#define DS4_INPUT_REPORT_BT_SIZE 78 #define DS4_OUTPUT_REPORT_USB 0x05 #define DS4_OUTPUT_REPORT_USB_SIZE 32 +#define DS4_OUTPUT_REPORT_BT 0x11 +#define DS4_OUTPUT_REPORT_BT_SIZE 78 #define DS4_FEATURE_REPORT_CALIBRATION 0x02 #define DS4_FEATURE_REPORT_CALIBRATION_SIZE 37 +#define DS4_FEATURE_REPORT_CALIBRATION_BT 0x05 +#define DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE 41 #define DS4_FEATURE_REPORT_FIRMWARE_INFO 0xa3 #define DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE 49 #define DS4_FEATURE_REPORT_PAIRING_INFO 0x12 @@ -310,6 +316,9 @@ struct dualsense_output_report { /* Battery status within batery_status field. */ #define DS4_BATTERY_STATUS_FULL 11 +#define DS4_OUTPUT_HWCTL_CRC32 0x40 +#define DS4_OUTPUT_HWCTL_HID 0x80 + /* Flags for DualShock4 output report. */ #define DS4_OUTPUT_VALID_FLAG0_MOTOR 0x01 #define DS4_OUTPUT_VALID_FLAG0_LED 0x02 @@ -401,6 +410,17 @@ struct dualshock4_input_report_usb { } __packed; static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE); +struct dualshock4_input_report_bt { + uint8_t report_id; /* 0x11 */ + uint8_t reserved[2]; + struct dualshock4_input_report_common common; + uint8_t num_touch_reports; + struct dualshock4_touch_report touch_reports[4]; /* BT has 4 compared to 3 for USB */ + uint8_t reserved2[2]; + __le32 crc32; +} __packed; +static_assert(sizeof(struct dualshock4_input_report_bt) == DS4_INPUT_REPORT_BT_SIZE); + /* Common data between Bluetooth and USB DualShock4 output reports. */ struct dualshock4_output_report_common { uint8_t valid_flag0; @@ -425,6 +445,16 @@ struct dualshock4_output_report_usb { } __packed; static_assert(sizeof(struct dualshock4_output_report_usb) == DS4_OUTPUT_REPORT_USB_SIZE); +struct dualshock4_output_report_bt { + uint8_t report_id; /* 0x11 */ + uint8_t hw_control; + uint8_t audio_control; + struct dualshock4_output_report_common common; + uint8_t reserved[61]; + __le32 crc32; +} __packed; +static_assert(sizeof(struct dualshock4_output_report_bt) == DS4_OUTPUT_REPORT_BT_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. @@ -434,6 +464,8 @@ struct dualshock4_output_report { uint8_t *data; /* Start of data */ uint8_t len; /* Size of output report */ + /* Points to Bluetooth data payload in case for a Bluetooth report else NULL. */ + struct dualshock4_output_report_bt *bt; /* 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. */ @@ -1646,26 +1678,49 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4) int ret = 0; uint8_t *buf; - buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; + if (ds4->base.hdev->bus == BUS_USB) { + buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; - ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION, buf, - DS4_FEATURE_REPORT_CALIBRATION_SIZE, true); - if (ret) { - hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret); - goto err_free; + ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION, buf, + DS4_FEATURE_REPORT_CALIBRATION_SIZE, true); + if (ret) { + hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret); + goto err_free; + } + } else { /* Bluetooth */ + buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION_BT, buf, + DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, true); + if (ret) { + hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret); + goto err_free; + } } gyro_pitch_bias = get_unaligned_le16(&buf[1]); gyro_yaw_bias = get_unaligned_le16(&buf[3]); gyro_roll_bias = get_unaligned_le16(&buf[5]); - gyro_pitch_plus = get_unaligned_le16(&buf[7]); - gyro_pitch_minus = get_unaligned_le16(&buf[9]); - gyro_yaw_plus = get_unaligned_le16(&buf[11]); - gyro_yaw_minus = get_unaligned_le16(&buf[13]); - gyro_roll_plus = get_unaligned_le16(&buf[15]); - gyro_roll_minus = get_unaligned_le16(&buf[17]); + if (ds4->base.hdev->bus == BUS_USB) { + gyro_pitch_plus = get_unaligned_le16(&buf[7]); + gyro_pitch_minus = get_unaligned_le16(&buf[9]); + gyro_yaw_plus = get_unaligned_le16(&buf[11]); + gyro_yaw_minus = get_unaligned_le16(&buf[13]); + gyro_roll_plus = get_unaligned_le16(&buf[15]); + gyro_roll_minus = get_unaligned_le16(&buf[17]); + } else { + /* BT + Dongle */ + gyro_pitch_plus = get_unaligned_le16(&buf[7]); + gyro_yaw_plus = get_unaligned_le16(&buf[9]); + gyro_roll_plus = get_unaligned_le16(&buf[11]); + gyro_pitch_minus = get_unaligned_le16(&buf[13]); + gyro_yaw_minus = get_unaligned_le16(&buf[15]); + gyro_roll_minus = get_unaligned_le16(&buf[17]); + } gyro_speed_plus = get_unaligned_le16(&buf[19]); gyro_speed_minus = get_unaligned_le16(&buf[21]); acc_x_plus = get_unaligned_le16(&buf[23]); @@ -1731,8 +1786,11 @@ static int dualshock4_get_firmware_info(struct dualshock4 *ds4) if (!buf) return -ENOMEM; + /* Note USB and BT support the same feature report, but this report + * lacks CRC support, so must be disabled in ps_get_report. + */ ret = ps_get_report(ds4->base.hdev, DS4_FEATURE_REPORT_FIRMWARE_INFO, buf, - DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE, true); + DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE, false); if (ret) { hid_err(ds4->base.hdev, "Failed to retrieve DualShock4 firmware info: %d\n", ret); goto err_free; @@ -1748,21 +1806,38 @@ err_free: static int dualshock4_get_mac_address(struct dualshock4 *ds4) { + struct hid_device *hdev = ds4->base.hdev; uint8_t *buf; int ret = 0; - buf = kzalloc(DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; + if (hdev->bus == BUS_USB) { + buf = kzalloc(DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(hdev, DS4_FEATURE_REPORT_PAIRING_INFO, buf, + DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, false); + if (ret) { + hid_err(hdev, "Failed to retrieve DualShock4 pairing info: %d\n", ret); + goto err_free; + } - ret = ps_get_report(ds4->base.hdev, DS4_FEATURE_REPORT_PAIRING_INFO, buf, - DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, true); - if (ret) { - hid_err(ds4->base.hdev, "Failed to retrieve DualShock4 pairing info: %d\n", ret); - goto err_free; - } + memcpy(ds4->base.mac_address, &buf[1], sizeof(ds4->base.mac_address)); + } else { + /* Rely on HIDP for Bluetooth */ + if (strlen(hdev->uniq) != 17) + return -EINVAL; + + ret = sscanf(hdev->uniq, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", + &ds4->base.mac_address[5], &ds4->base.mac_address[4], + &ds4->base.mac_address[3], &ds4->base.mac_address[2], + &ds4->base.mac_address[1], &ds4->base.mac_address[0]); - memcpy(ds4->base.mac_address, &buf[1], sizeof(ds4->base.mac_address)); + if (ret != sizeof(ds4->base.mac_address)) + return -EINVAL; + + ret = 0; + } err_free: kfree(buf); @@ -1859,7 +1934,18 @@ static void dualshock4_init_output_report(struct dualshock4 *ds4, { struct hid_device *hdev = ds4->base.hdev; - if (hdev->bus == BUS_USB) { + if (hdev->bus == BUS_BLUETOOTH) { + struct dualshock4_output_report_bt *bt = buf; + + memset(bt, 0, sizeof(*bt)); + bt->report_id = DS4_OUTPUT_REPORT_BT; + + rp->data = buf; + rp->len = sizeof(*bt); + rp->bt = bt; + rp->usb = NULL; + rp->common = &bt->common; + } else { /* USB */ struct dualshock4_output_report_usb *usb = buf; memset(usb, 0, sizeof(*usb)); @@ -1867,6 +1953,7 @@ static void dualshock4_init_output_report(struct dualshock4 *ds4, rp->data = buf; rp->len = sizeof(*usb); + rp->bt = NULL; rp->usb = usb; rp->common = &usb->common; } @@ -1913,6 +2000,22 @@ static void dualshock4_output_worker(struct work_struct *work) spin_unlock_irqrestore(&ds4->base.lock, flags); + /* Bluetooth packets need additional flags as well as a CRC in the last 4 bytes. */ + if (report.bt) { + uint32_t crc; + uint8_t seed = PS_OUTPUT_CRC32_SEED; + + /* Hardware control flags need to set to let the device know + * there is HID data as well as CRC. + */ + report.bt->hw_control = DS4_OUTPUT_HWCTL_HID | DS4_OUTPUT_HWCTL_CRC32; + + crc = crc32_le(0xFFFFFFFF, &seed, 1); + crc = ~crc32_le(crc, report.data, report.len - 4); + + report.bt->crc32 = cpu_to_le32(crc); + } + hid_hw_output_report(ds4->base.hdev, report.data, report.len); } @@ -1940,6 +2043,19 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * ds4_report = &usb->common; num_touch_reports = usb->num_touch_reports; touch_reports = usb->touch_reports; + } else if (hdev->bus == BUS_BLUETOOTH && report->id == DS4_INPUT_REPORT_BT && + size == DS4_INPUT_REPORT_BT_SIZE) { + struct dualshock4_input_report_bt *bt = (struct dualshock4_input_report_bt *)data; + + /* Last 4 bytes of input report contains CRC. */ + if (!ps_check_crc32(PS_INPUT_CRC32_SEED, data, size - 4, bt->crc32)) { + hid_err(hdev, "DualShock4 input CRC's check failed\n"); + return -EILSEQ; + } + + ds4_report = &bt->common; + num_touch_reports = bt->num_touch_reports; + touch_reports = bt->touch_reports; } else { hid_err(hdev, "Unhandled reportID=%d\n", report->id); return -1; @@ -2354,7 +2470,9 @@ static void ps_remove(struct hid_device *hdev) static const struct hid_device_id ps_devices[] = { /* Sony DualShock 4 controllers for PS4 */ + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) }, { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) }, { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) }, /* Sony DualSense controllers for PS5 */ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) }, |