diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/hid/hid-playstation.c | 2743 |
1 files changed, 2743 insertions, 0 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c new file mode 100644 index 0000000000..8ac8f7b8e3 --- /dev/null +++ b/drivers/hid/hid-playstation.c @@ -0,0 +1,2743 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * HID driver for Sony DualSense(TM) controller. + * + * Copyright (c) 2020-2022 Sony Interactive Entertainment + */ + +#include <linux/bits.h> +#include <linux/crc32.h> +#include <linux/device.h> +#include <linux/hid.h> +#include <linux/idr.h> +#include <linux/input/mt.h> +#include <linux/leds.h> +#include <linux/led-class-multicolor.h> +#include <linux/module.h> + +#include <asm/unaligned.h> + +#include "hid-ids.h" + +/* List of connected playstation devices. */ +static DEFINE_MUTEX(ps_devices_lock); +static LIST_HEAD(ps_devices_list); + +static DEFINE_IDA(ps_player_id_allocator); + +#define HID_PLAYSTATION_VERSION_PATCH 0x8000 + +/* Base class for playstation devices. */ +struct ps_device { + struct list_head list; + struct hid_device *hdev; + spinlock_t lock; + + uint32_t player_id; + + struct power_supply_desc battery_desc; + struct power_supply *battery; + uint8_t battery_capacity; + int battery_status; + + const char *input_dev_name; /* Name of primary input device. */ + uint8_t mac_address[6]; /* Note: stored in little endian order. */ + uint32_t hw_version; + uint32_t fw_version; + + int (*parse_report)(struct ps_device *dev, struct hid_report *report, u8 *data, int size); + void (*remove)(struct ps_device *dev); +}; + +/* Calibration data for playstation motion sensors. */ +struct ps_calibration_data { + int abs_code; + short bias; + int sens_numer; + int sens_denom; +}; + +struct ps_led_info { + const char *name; + const char *color; + int max_brightness; + enum led_brightness (*brightness_get)(struct led_classdev *cdev); + int (*brightness_set)(struct led_classdev *cdev, enum led_brightness); + int (*blink_set)(struct led_classdev *led, unsigned long *on, unsigned long *off); +}; + +/* Seed values for DualShock4 / DualSense CRC32 for different report types. */ +#define PS_INPUT_CRC32_SEED 0xA1 +#define PS_OUTPUT_CRC32_SEED 0xA2 +#define PS_FEATURE_CRC32_SEED 0xA3 + +#define DS_INPUT_REPORT_USB 0x01 +#define DS_INPUT_REPORT_USB_SIZE 64 +#define DS_INPUT_REPORT_BT 0x31 +#define DS_INPUT_REPORT_BT_SIZE 78 +#define DS_OUTPUT_REPORT_USB 0x02 +#define DS_OUTPUT_REPORT_USB_SIZE 63 +#define DS_OUTPUT_REPORT_BT 0x31 +#define DS_OUTPUT_REPORT_BT_SIZE 78 + +#define DS_FEATURE_REPORT_CALIBRATION 0x05 +#define DS_FEATURE_REPORT_CALIBRATION_SIZE 41 +#define DS_FEATURE_REPORT_PAIRING_INFO 0x09 +#define DS_FEATURE_REPORT_PAIRING_INFO_SIZE 20 +#define DS_FEATURE_REPORT_FIRMWARE_INFO 0x20 +#define DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE 64 + +/* Button masks for DualSense input report. */ +#define DS_BUTTONS0_HAT_SWITCH GENMASK(3, 0) +#define DS_BUTTONS0_SQUARE BIT(4) +#define DS_BUTTONS0_CROSS BIT(5) +#define DS_BUTTONS0_CIRCLE BIT(6) +#define DS_BUTTONS0_TRIANGLE BIT(7) +#define DS_BUTTONS1_L1 BIT(0) +#define DS_BUTTONS1_R1 BIT(1) +#define DS_BUTTONS1_L2 BIT(2) +#define DS_BUTTONS1_R2 BIT(3) +#define DS_BUTTONS1_CREATE BIT(4) +#define DS_BUTTONS1_OPTIONS BIT(5) +#define DS_BUTTONS1_L3 BIT(6) +#define DS_BUTTONS1_R3 BIT(7) +#define DS_BUTTONS2_PS_HOME BIT(0) +#define DS_BUTTONS2_TOUCHPAD BIT(1) +#define DS_BUTTONS2_MIC_MUTE BIT(2) + +/* Status field of DualSense input report. */ +#define DS_STATUS_BATTERY_CAPACITY GENMASK(3, 0) +#define DS_STATUS_CHARGING GENMASK(7, 4) +#define DS_STATUS_CHARGING_SHIFT 4 + +/* Feature version from DualSense Firmware Info report. */ +#define DS_FEATURE_VERSION(major, minor) ((major & 0xff) << 8 | (minor & 0xff)) + +/* + * 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) + + /* Magic value required in tag field of Bluetooth output report. */ +#define DS_OUTPUT_TAG 0x10 +/* Flags for DualSense output report. */ +#define DS_OUTPUT_VALID_FLAG0_COMPATIBLE_VIBRATION BIT(0) +#define DS_OUTPUT_VALID_FLAG0_HAPTICS_SELECT BIT(1) +#define DS_OUTPUT_VALID_FLAG1_MIC_MUTE_LED_CONTROL_ENABLE BIT(0) +#define DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE BIT(1) +#define DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE BIT(2) +#define DS_OUTPUT_VALID_FLAG1_RELEASE_LEDS BIT(3) +#define DS_OUTPUT_VALID_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE BIT(4) +#define DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE BIT(1) +#define DS_OUTPUT_VALID_FLAG2_COMPATIBLE_VIBRATION2 BIT(2) +#define DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE BIT(4) +#define DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT BIT(1) + +/* DualSense hardware limits */ +#define DS_ACC_RES_PER_G 8192 +#define DS_ACC_RANGE (4*DS_ACC_RES_PER_G) +#define DS_GYRO_RES_PER_DEG_S 1024 +#define DS_GYRO_RANGE (2048*DS_GYRO_RES_PER_DEG_S) +#define DS_TOUCHPAD_WIDTH 1920 +#define DS_TOUCHPAD_HEIGHT 1080 + +struct dualsense { + struct ps_device base; + struct input_dev *gamepad; + struct input_dev *sensors; + struct input_dev *touchpad; + + /* Update version is used as a feature/capability version. */ + uint16_t update_version; + + /* Calibration data for accelerometer and gyroscope. */ + struct ps_calibration_data accel_calib_data[3]; + struct ps_calibration_data gyro_calib_data[3]; + + /* Timestamp for sensor data */ + bool sensor_timestamp_initialized; + uint32_t prev_sensor_timestamp; + uint32_t sensor_timestamp_us; + + /* Compatible rumble state */ + bool use_vibration_v2; + bool update_rumble; + uint8_t motor_left; + uint8_t motor_right; + + /* RGB lightbar */ + struct led_classdev_mc lightbar; + bool update_lightbar; + uint8_t lightbar_red; + uint8_t lightbar_green; + uint8_t lightbar_blue; + + /* Microphone */ + bool update_mic_mute; + bool mic_muted; + bool last_btn_mic_state; + + /* Player leds */ + bool update_player_leds; + uint8_t player_leds_state; + struct led_classdev player_leds[5]; + + struct work_struct output_worker; + bool output_worker_initialized; + void *output_report_dmabuf; + uint8_t output_seq; /* Sequence number for output report. */ +}; + +struct dualsense_touch_point { + uint8_t contact; + uint8_t x_lo; + uint8_t x_hi:4, y_lo:4; + uint8_t y_hi; +} __packed; +static_assert(sizeof(struct dualsense_touch_point) == 4); + +/* Main DualSense input report excluding any BT/USB specific headers. */ +struct dualsense_input_report { + uint8_t x, y; + uint8_t rx, ry; + uint8_t z, rz; + uint8_t seq_number; + uint8_t buttons[4]; + uint8_t reserved[4]; + + /* Motion sensors */ + __le16 gyro[3]; /* x, y, z */ + __le16 accel[3]; /* x, y, z */ + __le32 sensor_timestamp; + uint8_t reserved2; + + /* Touchpad */ + struct dualsense_touch_point points[2]; + + uint8_t reserved3[12]; + uint8_t status; + uint8_t reserved4[10]; +} __packed; +/* Common input report size shared equals the size of the USB report minus 1 byte for ReportID. */ +static_assert(sizeof(struct dualsense_input_report) == DS_INPUT_REPORT_USB_SIZE - 1); + +/* Common data between DualSense BT/USB main output report. */ +struct dualsense_output_report_common { + uint8_t valid_flag0; + uint8_t valid_flag1; + + /* For DualShock 4 compatibility mode. */ + uint8_t motor_right; + uint8_t motor_left; + + /* Audio controls */ + uint8_t reserved[4]; + uint8_t mute_button_led; + + uint8_t power_save_control; + uint8_t reserved2[28]; + + /* LEDs and lightbar */ + uint8_t valid_flag2; + uint8_t reserved3[2]; + uint8_t lightbar_setup; + uint8_t led_brightness; + uint8_t player_leds; + uint8_t lightbar_red; + uint8_t lightbar_green; + uint8_t lightbar_blue; +} __packed; +static_assert(sizeof(struct dualsense_output_report_common) == 47); + +struct dualsense_output_report_bt { + uint8_t report_id; /* 0x31 */ + uint8_t seq_tag; + uint8_t tag; + struct dualsense_output_report_common common; + uint8_t reserved[24]; + __le32 crc32; +} __packed; +static_assert(sizeof(struct dualsense_output_report_bt) == DS_OUTPUT_REPORT_BT_SIZE); + +struct dualsense_output_report_usb { + uint8_t report_id; /* 0x02 */ + struct dualsense_output_report_common common; + uint8_t reserved[15]; +} __packed; +static_assert(sizeof(struct dualsense_output_report_usb) == DS_OUTPUT_REPORT_USB_SIZE); + +/* + * The DualSense 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 dualsense_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 dualsense_output_report_bt *bt; + /* Points to USB data payload in case for a USB report else NULL. */ + struct dualsense_output_report_usb *usb; + /* Points to common section of report, so past any headers. */ + struct dualsense_output_report_common *common; +}; + +#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 +#define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE 16 + +/* + * Status of a DualShock4 touch point contact. + * Contact IDs, with highest bit set are 'inactive' + * and any associated data is then invalid. + */ +#define DS4_TOUCH_POINT_INACTIVE BIT(7) + +/* Status field of DualShock4 input report. */ +#define DS4_STATUS0_BATTERY_CAPACITY GENMASK(3, 0) +#define DS4_STATUS0_CABLE_STATE BIT(4) +/* Battery status within batery_status field. */ +#define DS4_BATTERY_STATUS_FULL 11 +/* Status1 bit2 contains dongle connection state: + * 0 = connectd + * 1 = disconnected + */ +#define DS4_STATUS1_DONGLE_STATE BIT(2) + +/* The lower 6 bits of hw_control of the Bluetooth main output report + * control the interval at which Dualshock 4 reports data: + * 0x00 - 1ms + * 0x01 - 1ms + * 0x02 - 2ms + * 0x3E - 62ms + * 0x3F - disabled + */ +#define DS4_OUTPUT_HWCTL_BT_POLL_MASK 0x3F +/* Default to 4ms poll interval, which is same as USB (not adjustable). */ +#define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4 +#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 +#define DS4_OUTPUT_VALID_FLAG0_LED_BLINK 0x04 + +/* DualShock4 hardware limits */ +#define DS4_ACC_RES_PER_G 8192 +#define DS4_ACC_RANGE (4*DS_ACC_RES_PER_G) +#define DS4_GYRO_RES_PER_DEG_S 1024 +#define DS4_GYRO_RANGE (2048*DS_GYRO_RES_PER_DEG_S) +#define DS4_LIGHTBAR_MAX_BLINK 255 /* 255 centiseconds */ +#define DS4_TOUCHPAD_WIDTH 1920 +#define DS4_TOUCHPAD_HEIGHT 942 + +enum dualshock4_dongle_state { + DONGLE_DISCONNECTED, + DONGLE_CALIBRATING, + DONGLE_CONNECTED, + DONGLE_DISABLED +}; + +struct dualshock4 { + struct ps_device base; + struct input_dev *gamepad; + struct input_dev *sensors; + struct input_dev *touchpad; + + /* Calibration data for accelerometer and gyroscope. */ + struct ps_calibration_data accel_calib_data[3]; + struct ps_calibration_data gyro_calib_data[3]; + + /* Only used on dongle to track state transitions. */ + enum dualshock4_dongle_state dongle_state; + /* Used during calibration. */ + struct work_struct dongle_hotplug_worker; + + /* Timestamp for sensor data */ + bool sensor_timestamp_initialized; + uint32_t prev_sensor_timestamp; + uint32_t sensor_timestamp_us; + + /* Bluetooth poll interval */ + bool update_bt_poll_interval; + uint8_t bt_poll_interval; + + bool update_rumble; + uint8_t motor_left; + uint8_t motor_right; + + /* Lightbar leds */ + bool update_lightbar; + bool update_lightbar_blink; + bool lightbar_enabled; /* For use by global LED control. */ + uint8_t lightbar_red; + uint8_t lightbar_green; + uint8_t lightbar_blue; + uint8_t lightbar_blink_on; /* In increments of 10ms. */ + uint8_t lightbar_blink_off; /* In increments of 10ms. */ + struct led_classdev lightbar_leds[4]; + + struct work_struct output_worker; + bool output_worker_initialized; + void *output_report_dmabuf; +}; + +struct dualshock4_touch_point { + uint8_t contact; + uint8_t x_lo; + uint8_t x_hi:4, y_lo:4; + uint8_t y_hi; +} __packed; +static_assert(sizeof(struct dualshock4_touch_point) == 4); + +struct dualshock4_touch_report { + uint8_t timestamp; + struct dualshock4_touch_point points[2]; +} __packed; +static_assert(sizeof(struct dualshock4_touch_report) == 9); + +/* Main DualShock4 input report excluding any BT/USB specific headers. */ +struct dualshock4_input_report_common { + uint8_t x, y; + uint8_t rx, ry; + uint8_t buttons[3]; + uint8_t z, rz; + + /* Motion sensors */ + __le16 sensor_timestamp; + uint8_t sensor_temperature; + __le16 gyro[3]; /* x, y, z */ + __le16 accel[3]; /* x, y, z */ + uint8_t reserved2[5]; + + uint8_t status[2]; + uint8_t reserved3; +} __packed; +static_assert(sizeof(struct dualshock4_input_report_common) == 32); + +struct dualshock4_input_report_usb { + uint8_t report_id; /* 0x01 */ + struct dualshock4_input_report_common common; + uint8_t num_touch_reports; + struct dualshock4_touch_report touch_reports[3]; + uint8_t reserved[3]; +} __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; + 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); + +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. + * 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 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. */ + 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 + * as it will be part of the touchpad device. + */ +static const int ps_gamepad_buttons[] = { + BTN_WEST, /* Square */ + BTN_NORTH, /* Triangle */ + BTN_EAST, /* Circle */ + BTN_SOUTH, /* Cross */ + BTN_TL, /* L1 */ + BTN_TR, /* R1 */ + BTN_TL2, /* L2 */ + BTN_TR2, /* R2 */ + BTN_SELECT, /* Create (PS5) / Share (PS4) */ + BTN_START, /* Option */ + BTN_THUMBL, /* L3 */ + BTN_THUMBR, /* R3 */ + BTN_MODE, /* PS Home */ +}; + +static const struct {int x; int y; } ps_gamepad_hat_mapping[] = { + {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1}, + {0, 0}, +}; + +static int dualshock4_get_calibration_data(struct dualshock4 *ds4); +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); +static void dualshock4_set_default_lightbar_colors(struct dualshock4 *ds4); + +/* + * Add a new ps_device to ps_devices if it doesn't exist. + * Return error on duplicate device, which can happen if the same + * device is connected using both Bluetooth and USB. + */ +static int ps_devices_list_add(struct ps_device *dev) +{ + struct ps_device *entry; + + mutex_lock(&ps_devices_lock); + list_for_each_entry(entry, &ps_devices_list, list) { + if (!memcmp(entry->mac_address, dev->mac_address, sizeof(dev->mac_address))) { + hid_err(dev->hdev, "Duplicate device found for MAC address %pMR.\n", + dev->mac_address); + mutex_unlock(&ps_devices_lock); + return -EEXIST; + } + } + + list_add_tail(&dev->list, &ps_devices_list); + mutex_unlock(&ps_devices_lock); + return 0; +} + +static int ps_devices_list_remove(struct ps_device *dev) +{ + mutex_lock(&ps_devices_lock); + list_del(&dev->list); + mutex_unlock(&ps_devices_lock); + return 0; +} + +static int ps_device_set_player_id(struct ps_device *dev) +{ + int ret = ida_alloc(&ps_player_id_allocator, GFP_KERNEL); + + if (ret < 0) + return ret; + + dev->player_id = ret; + return 0; +} + +static void ps_device_release_player_id(struct ps_device *dev) +{ + ida_free(&ps_player_id_allocator, dev->player_id); + + dev->player_id = U32_MAX; +} + +static struct input_dev *ps_allocate_input_dev(struct hid_device *hdev, const char *name_suffix) +{ + struct input_dev *input_dev; + + input_dev = devm_input_allocate_device(&hdev->dev); + if (!input_dev) + return ERR_PTR(-ENOMEM); + + input_dev->id.bustype = hdev->bus; + input_dev->id.vendor = hdev->vendor; + input_dev->id.product = hdev->product; + input_dev->id.version = hdev->version; + input_dev->uniq = hdev->uniq; + + if (name_suffix) { + input_dev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s %s", hdev->name, + name_suffix); + if (!input_dev->name) + return ERR_PTR(-ENOMEM); + } else { + input_dev->name = hdev->name; + } + + input_set_drvdata(input_dev, hdev); + + return input_dev; +} + +static enum power_supply_property ps_power_supply_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_SCOPE, +}; + +static int ps_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct ps_device *dev = power_supply_get_drvdata(psy); + uint8_t battery_capacity; + int battery_status; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&dev->lock, flags); + battery_capacity = dev->battery_capacity; + battery_status = dev->battery_status; + spin_unlock_irqrestore(&dev->lock, flags); + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + val->intval = battery_status; + break; + case POWER_SUPPLY_PROP_PRESENT: + val->intval = 1; + break; + case POWER_SUPPLY_PROP_CAPACITY: + val->intval = battery_capacity; + break; + case POWER_SUPPLY_PROP_SCOPE: + val->intval = POWER_SUPPLY_SCOPE_DEVICE; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int ps_device_register_battery(struct ps_device *dev) +{ + struct power_supply *battery; + struct power_supply_config battery_cfg = { .drv_data = dev }; + int ret; + + dev->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; + dev->battery_desc.properties = ps_power_supply_props; + dev->battery_desc.num_properties = ARRAY_SIZE(ps_power_supply_props); + dev->battery_desc.get_property = ps_battery_get_property; + dev->battery_desc.name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL, + "ps-controller-battery-%pMR", dev->mac_address); + if (!dev->battery_desc.name) + return -ENOMEM; + + battery = devm_power_supply_register(&dev->hdev->dev, &dev->battery_desc, &battery_cfg); + if (IS_ERR(battery)) { + ret = PTR_ERR(battery); + hid_err(dev->hdev, "Unable to register battery device: %d\n", ret); + return ret; + } + dev->battery = battery; + + ret = power_supply_powers(dev->battery, &dev->hdev->dev); + if (ret) { + hid_err(dev->hdev, "Unable to activate battery device: %d\n", ret); + return ret; + } + + return 0; +} + +/* Compute crc32 of HID data and compare against expected CRC. */ +static bool ps_check_crc32(uint8_t seed, uint8_t *data, size_t len, uint32_t report_crc) +{ + uint32_t crc; + + crc = crc32_le(0xFFFFFFFF, &seed, 1); + crc = ~crc32_le(crc, data, len); + + return crc == report_crc; +} + +static struct input_dev *ps_gamepad_create(struct hid_device *hdev, + int (*play_effect)(struct input_dev *, void *, struct ff_effect *)) +{ + struct input_dev *gamepad; + unsigned int i; + int ret; + + gamepad = ps_allocate_input_dev(hdev, NULL); + if (IS_ERR(gamepad)) + return ERR_CAST(gamepad); + + input_set_abs_params(gamepad, ABS_X, 0, 255, 0, 0); + input_set_abs_params(gamepad, ABS_Y, 0, 255, 0, 0); + input_set_abs_params(gamepad, ABS_Z, 0, 255, 0, 0); + input_set_abs_params(gamepad, ABS_RX, 0, 255, 0, 0); + input_set_abs_params(gamepad, ABS_RY, 0, 255, 0, 0); + input_set_abs_params(gamepad, ABS_RZ, 0, 255, 0, 0); + + input_set_abs_params(gamepad, ABS_HAT0X, -1, 1, 0, 0); + input_set_abs_params(gamepad, ABS_HAT0Y, -1, 1, 0, 0); + + for (i = 0; i < ARRAY_SIZE(ps_gamepad_buttons); i++) + input_set_capability(gamepad, EV_KEY, ps_gamepad_buttons[i]); + +#if IS_ENABLED(CONFIG_PLAYSTATION_FF) + if (play_effect) { + input_set_capability(gamepad, EV_FF, FF_RUMBLE); + input_ff_create_memless(gamepad, NULL, play_effect); + } +#endif + + ret = input_register_device(gamepad); + if (ret) + return ERR_PTR(ret); + + return gamepad; +} + +static int ps_get_report(struct hid_device *hdev, uint8_t report_id, uint8_t *buf, size_t size, + bool check_crc) +{ + int ret; + + ret = hid_hw_raw_request(hdev, report_id, buf, size, HID_FEATURE_REPORT, + HID_REQ_GET_REPORT); + if (ret < 0) { + hid_err(hdev, "Failed to retrieve feature with reportID %d: %d\n", report_id, ret); + return ret; + } + + if (ret != size) { + hid_err(hdev, "Invalid byte count transferred, expected %zu got %d\n", size, ret); + return -EINVAL; + } + + if (buf[0] != report_id) { + hid_err(hdev, "Invalid reportID received, expected %d got %d\n", report_id, buf[0]); + return -EINVAL; + } + + if (hdev->bus == BUS_BLUETOOTH && check_crc) { + /* Last 4 bytes contains crc32. */ + uint8_t crc_offset = size - 4; + uint32_t report_crc = get_unaligned_le32(&buf[crc_offset]); + + if (!ps_check_crc32(PS_FEATURE_CRC32_SEED, buf, crc_offset, report_crc)) { + hid_err(hdev, "CRC check failed for reportID=%d\n", report_id); + return -EILSEQ; + } + } + + return 0; +} + +static int ps_led_register(struct ps_device *ps_dev, struct led_classdev *led, + const struct ps_led_info *led_info) +{ + int ret; + + if (led_info->name) { + led->name = devm_kasprintf(&ps_dev->hdev->dev, GFP_KERNEL, + "%s:%s:%s", ps_dev->input_dev_name, led_info->color, led_info->name); + } else { + /* Backwards compatible mode for hid-sony, but not compliant with LED class spec. */ + led->name = devm_kasprintf(&ps_dev->hdev->dev, GFP_KERNEL, + "%s:%s", ps_dev->input_dev_name, led_info->color); + } + + if (!led->name) + return -ENOMEM; + + led->brightness = 0; + led->max_brightness = led_info->max_brightness; + led->flags = LED_CORE_SUSPENDRESUME; + led->brightness_get = led_info->brightness_get; + led->brightness_set_blocking = led_info->brightness_set; + led->blink_set = led_info->blink_set; + + ret = devm_led_classdev_register(&ps_dev->hdev->dev, led); + if (ret) { + hid_err(ps_dev->hdev, "Failed to register LED %s: %d\n", led_info->name, ret); + return ret; + } + + return 0; +} + +/* Register a DualSense/DualShock4 RGB lightbar represented by a multicolor LED. */ +static int ps_lightbar_register(struct ps_device *ps_dev, struct led_classdev_mc *lightbar_mc_dev, + int (*brightness_set)(struct led_classdev *, enum led_brightness)) +{ + struct hid_device *hdev = ps_dev->hdev; + struct mc_subled *mc_led_info; + struct led_classdev *led_cdev; + int ret; + + mc_led_info = devm_kmalloc_array(&hdev->dev, 3, sizeof(*mc_led_info), + GFP_KERNEL | __GFP_ZERO); + if (!mc_led_info) + return -ENOMEM; + + mc_led_info[0].color_index = LED_COLOR_ID_RED; + mc_led_info[1].color_index = LED_COLOR_ID_GREEN; + mc_led_info[2].color_index = LED_COLOR_ID_BLUE; + + lightbar_mc_dev->subled_info = mc_led_info; + lightbar_mc_dev->num_colors = 3; + + led_cdev = &lightbar_mc_dev->led_cdev; + led_cdev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s:rgb:indicator", + ps_dev->input_dev_name); + if (!led_cdev->name) + return -ENOMEM; + led_cdev->brightness = 255; + led_cdev->max_brightness = 255; + led_cdev->brightness_set_blocking = brightness_set; + + ret = devm_led_classdev_multicolor_register(&hdev->dev, lightbar_mc_dev); + if (ret < 0) { + hid_err(hdev, "Cannot register multicolor LED device\n"); + return ret; + } + + return 0; +} + +static struct input_dev *ps_sensors_create(struct hid_device *hdev, int accel_range, int accel_res, + int gyro_range, int gyro_res) +{ + struct input_dev *sensors; + int ret; + + sensors = ps_allocate_input_dev(hdev, "Motion Sensors"); + if (IS_ERR(sensors)) + return ERR_CAST(sensors); + + __set_bit(INPUT_PROP_ACCELEROMETER, sensors->propbit); + __set_bit(EV_MSC, sensors->evbit); + __set_bit(MSC_TIMESTAMP, sensors->mscbit); + + /* Accelerometer */ + input_set_abs_params(sensors, ABS_X, -accel_range, accel_range, 16, 0); + input_set_abs_params(sensors, ABS_Y, -accel_range, accel_range, 16, 0); + input_set_abs_params(sensors, ABS_Z, -accel_range, accel_range, 16, 0); + input_abs_set_res(sensors, ABS_X, accel_res); + input_abs_set_res(sensors, ABS_Y, accel_res); + input_abs_set_res(sensors, ABS_Z, accel_res); + + /* Gyroscope */ + input_set_abs_params(sensors, ABS_RX, -gyro_range, gyro_range, 16, 0); + input_set_abs_params(sensors, ABS_RY, -gyro_range, gyro_range, 16, 0); + input_set_abs_params(sensors, ABS_RZ, -gyro_range, gyro_range, 16, 0); + input_abs_set_res(sensors, ABS_RX, gyro_res); + input_abs_set_res(sensors, ABS_RY, gyro_res); + input_abs_set_res(sensors, ABS_RZ, gyro_res); + + ret = input_register_device(sensors); + if (ret) + return ERR_PTR(ret); + + return sensors; +} + +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 ssize_t firmware_version_show(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct ps_device *ps_dev = hid_get_drvdata(hdev); + + return sysfs_emit(buf, "0x%08x\n", ps_dev->fw_version); +} + +static DEVICE_ATTR_RO(firmware_version); + +static ssize_t hardware_version_show(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct ps_device *ps_dev = hid_get_drvdata(hdev); + + return sysfs_emit(buf, "0x%08x\n", ps_dev->hw_version); +} + +static DEVICE_ATTR_RO(hardware_version); + +static struct attribute *ps_device_attrs[] = { + &dev_attr_firmware_version.attr, + &dev_attr_hardware_version.attr, + NULL +}; +ATTRIBUTE_GROUPS(ps_device); + +static int dualsense_get_calibration_data(struct dualsense *ds) +{ + struct hid_device *hdev = ds->base.hdev; + short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus; + short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus; + short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus; + short gyro_speed_plus, gyro_speed_minus; + short acc_x_plus, acc_x_minus; + short acc_y_plus, acc_y_minus; + short acc_z_plus, acc_z_minus; + int speed_2x; + int range_2g; + int ret = 0; + int i; + uint8_t *buf; + + buf = kzalloc(DS_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_CALIBRATION, buf, + DS_FEATURE_REPORT_CALIBRATION_SIZE, true); + if (ret) { + hid_err(ds->base.hdev, "Failed to retrieve DualSense 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]); + gyro_speed_plus = get_unaligned_le16(&buf[19]); + gyro_speed_minus = get_unaligned_le16(&buf[21]); + acc_x_plus = get_unaligned_le16(&buf[23]); + acc_x_minus = get_unaligned_le16(&buf[25]); + acc_y_plus = get_unaligned_le16(&buf[27]); + acc_y_minus = get_unaligned_le16(&buf[29]); + acc_z_plus = get_unaligned_le16(&buf[31]); + acc_z_minus = get_unaligned_le16(&buf[33]); + + /* + * Set gyroscope calibration and normalization parameters. + * Data values will be normalized to 1/DS_GYRO_RES_PER_DEG_S degree/s. + */ + speed_2x = (gyro_speed_plus + gyro_speed_minus); + ds->gyro_calib_data[0].abs_code = ABS_RX; + ds->gyro_calib_data[0].bias = 0; + ds->gyro_calib_data[0].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S; + ds->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) + + abs(gyro_pitch_minus - gyro_pitch_bias); + + ds->gyro_calib_data[1].abs_code = ABS_RY; + ds->gyro_calib_data[1].bias = 0; + ds->gyro_calib_data[1].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S; + ds->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) + + abs(gyro_yaw_minus - gyro_yaw_bias); + + ds->gyro_calib_data[2].abs_code = ABS_RZ; + ds->gyro_calib_data[2].bias = 0; + ds->gyro_calib_data[2].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S; + ds->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) + + abs(gyro_roll_minus - gyro_roll_bias); + + /* + * Sanity check gyro calibration data. This is needed to prevent crashes + * during report handling of virtual, clone or broken devices not implementing + * calibration data properly. + */ + for (i = 0; i < ARRAY_SIZE(ds->gyro_calib_data); i++) { + if (ds->gyro_calib_data[i].sens_denom == 0) { + hid_warn(hdev, "Invalid gyro calibration data for axis (%d), disabling calibration.", + ds->gyro_calib_data[i].abs_code); + ds->gyro_calib_data[i].bias = 0; + ds->gyro_calib_data[i].sens_numer = DS_GYRO_RANGE; + ds->gyro_calib_data[i].sens_denom = S16_MAX; + } + } + + /* + * Set accelerometer calibration and normalization parameters. + * Data values will be normalized to 1/DS_ACC_RES_PER_G g. + */ + range_2g = acc_x_plus - acc_x_minus; + ds->accel_calib_data[0].abs_code = ABS_X; + ds->accel_calib_data[0].bias = acc_x_plus - range_2g / 2; + ds->accel_calib_data[0].sens_numer = 2*DS_ACC_RES_PER_G; + ds->accel_calib_data[0].sens_denom = range_2g; + + range_2g = acc_y_plus - acc_y_minus; + ds->accel_calib_data[1].abs_code = ABS_Y; + ds->accel_calib_data[1].bias = acc_y_plus - range_2g / 2; + ds->accel_calib_data[1].sens_numer = 2*DS_ACC_RES_PER_G; + ds->accel_calib_data[1].sens_denom = range_2g; + + range_2g = acc_z_plus - acc_z_minus; + ds->accel_calib_data[2].abs_code = ABS_Z; + ds->accel_calib_data[2].bias = acc_z_plus - range_2g / 2; + ds->accel_calib_data[2].sens_numer = 2*DS_ACC_RES_PER_G; + ds->accel_calib_data[2].sens_denom = range_2g; + + /* + * Sanity check accelerometer calibration data. This is needed to prevent crashes + * during report handling of virtual, clone or broken devices not implementing calibration + * data properly. + */ + for (i = 0; i < ARRAY_SIZE(ds->accel_calib_data); i++) { + if (ds->accel_calib_data[i].sens_denom == 0) { + hid_warn(hdev, "Invalid accelerometer calibration data for axis (%d), disabling calibration.", + ds->accel_calib_data[i].abs_code); + ds->accel_calib_data[i].bias = 0; + ds->accel_calib_data[i].sens_numer = DS_ACC_RANGE; + ds->accel_calib_data[i].sens_denom = S16_MAX; + } + } + +err_free: + kfree(buf); + return ret; +} + + +static int dualsense_get_firmware_info(struct dualsense *ds) +{ + uint8_t *buf; + int ret; + + buf = kzalloc(DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_FIRMWARE_INFO, buf, + DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE, true); + if (ret) { + hid_err(ds->base.hdev, "Failed to retrieve DualSense firmware info: %d\n", ret); + goto err_free; + } + + ds->base.hw_version = get_unaligned_le32(&buf[24]); + ds->base.fw_version = get_unaligned_le32(&buf[28]); + + /* Update version is some kind of feature version. It is distinct from + * the firmware version as there can be many different variations of a + * controller over time with the same physical shell, but with different + * PCBs and other internal changes. The update version (internal name) is + * used as a means to detect what features are available and change behavior. + * Note: the version is different between DualSense and DualSense Edge. + */ + ds->update_version = get_unaligned_le16(&buf[44]); + +err_free: + kfree(buf); + return ret; +} + +static int dualsense_get_mac_address(struct dualsense *ds) +{ + uint8_t *buf; + int ret = 0; + + buf = kzalloc(DS_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_PAIRING_INFO, buf, + DS_FEATURE_REPORT_PAIRING_INFO_SIZE, true); + if (ret) { + hid_err(ds->base.hdev, "Failed to retrieve DualSense pairing info: %d\n", ret); + goto err_free; + } + + memcpy(ds->base.mac_address, &buf[1], sizeof(ds->base.mac_address)); + +err_free: + kfree(buf); + return ret; +} + +static int dualsense_lightbar_set_brightness(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev); + struct dualsense *ds = container_of(mc_cdev, struct dualsense, lightbar); + uint8_t red, green, blue; + + led_mc_calc_color_components(mc_cdev, brightness); + red = mc_cdev->subled_info[0].brightness; + green = mc_cdev->subled_info[1].brightness; + blue = mc_cdev->subled_info[2].brightness; + + dualsense_set_lightbar(ds, red, green, blue); + return 0; +} + +static enum led_brightness dualsense_player_led_get_brightness(struct led_classdev *led) +{ + struct hid_device *hdev = to_hid_device(led->dev->parent); + struct dualsense *ds = hid_get_drvdata(hdev); + + return !!(ds->player_leds_state & BIT(led - ds->player_leds)); +} + +static int dualsense_player_led_set_brightness(struct led_classdev *led, enum led_brightness value) +{ + struct hid_device *hdev = to_hid_device(led->dev->parent); + struct dualsense *ds = hid_get_drvdata(hdev); + unsigned long flags; + unsigned int led_index; + + spin_lock_irqsave(&ds->base.lock, flags); + + led_index = led - ds->player_leds; + if (value == LED_OFF) + ds->player_leds_state &= ~BIT(led_index); + else + ds->player_leds_state |= BIT(led_index); + + ds->update_player_leds = true; + spin_unlock_irqrestore(&ds->base.lock, flags); + + dualsense_schedule_work(ds); + + return 0; +} + +static void dualsense_init_output_report(struct dualsense *ds, struct dualsense_output_report *rp, + void *buf) +{ + struct hid_device *hdev = ds->base.hdev; + + if (hdev->bus == BUS_BLUETOOTH) { + struct dualsense_output_report_bt *bt = buf; + + memset(bt, 0, sizeof(*bt)); + bt->report_id = DS_OUTPUT_REPORT_BT; + bt->tag = DS_OUTPUT_TAG; /* Tag must be set. Exact meaning is unclear. */ + + /* + * Highest 4-bit is a sequence number, which needs to be increased + * every report. Lowest 4-bit is tag and can be zero for now. + */ + bt->seq_tag = (ds->output_seq << 4) | 0x0; + if (++ds->output_seq == 16) + ds->output_seq = 0; + + rp->data = buf; + rp->len = sizeof(*bt); + rp->bt = bt; + rp->usb = NULL; + rp->common = &bt->common; + } else { /* USB */ + struct dualsense_output_report_usb *usb = buf; + + memset(usb, 0, sizeof(*usb)); + usb->report_id = DS_OUTPUT_REPORT_USB; + + rp->data = buf; + rp->len = sizeof(*usb); + rp->bt = NULL; + rp->usb = usb; + rp->common = &usb->common; + } +} + +static inline void dualsense_schedule_work(struct dualsense *ds) +{ + unsigned long flags; + + spin_lock_irqsave(&ds->base.lock, flags); + if (ds->output_worker_initialized) + schedule_work(&ds->output_worker); + spin_unlock_irqrestore(&ds->base.lock, flags); +} + +/* + * Helper function to send DualSense output reports. Applies a CRC at the end of a report + * for Bluetooth reports. + */ +static void dualsense_send_output_report(struct dualsense *ds, + struct dualsense_output_report *report) +{ + struct hid_device *hdev = ds->base.hdev; + + /* Bluetooth packets need to be signed with a CRC in the last 4 bytes. */ + if (report->bt) { + uint32_t crc; + uint8_t seed = PS_OUTPUT_CRC32_SEED; + + 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(hdev, report->data, report->len); +} + +static void dualsense_output_worker(struct work_struct *work) +{ + struct dualsense *ds = container_of(work, struct dualsense, output_worker); + struct dualsense_output_report report; + struct dualsense_output_report_common *common; + unsigned long flags; + + dualsense_init_output_report(ds, &report, ds->output_report_dmabuf); + common = report.common; + + spin_lock_irqsave(&ds->base.lock, flags); + + if (ds->update_rumble) { + /* Select classic rumble style haptics and enable it. */ + common->valid_flag0 |= DS_OUTPUT_VALID_FLAG0_HAPTICS_SELECT; + if (ds->use_vibration_v2) + common->valid_flag2 |= DS_OUTPUT_VALID_FLAG2_COMPATIBLE_VIBRATION2; + else + common->valid_flag0 |= DS_OUTPUT_VALID_FLAG0_COMPATIBLE_VIBRATION; + common->motor_left = ds->motor_left; + common->motor_right = ds->motor_right; + ds->update_rumble = false; + } + + if (ds->update_lightbar) { + common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE; + common->lightbar_red = ds->lightbar_red; + common->lightbar_green = ds->lightbar_green; + common->lightbar_blue = ds->lightbar_blue; + + ds->update_lightbar = false; + } + + if (ds->update_player_leds) { + common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE; + common->player_leds = ds->player_leds_state; + + ds->update_player_leds = false; + } + + if (ds->update_mic_mute) { + common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_MIC_MUTE_LED_CONTROL_ENABLE; + common->mute_button_led = ds->mic_muted; + + if (ds->mic_muted) { + /* Disable microphone */ + common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE; + common->power_save_control |= DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE; + } else { + /* Enable microphone */ + common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE; + common->power_save_control &= ~DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE; + } + + ds->update_mic_mute = false; + } + + spin_unlock_irqrestore(&ds->base.lock, flags); + + dualsense_send_output_report(ds, &report); +} + +static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *report, + u8 *data, int size) +{ + struct hid_device *hdev = ps_dev->hdev; + struct dualsense *ds = container_of(ps_dev, struct dualsense, base); + struct dualsense_input_report *ds_report; + uint8_t battery_data, battery_capacity, charging_status, value; + int battery_status; + uint32_t sensor_timestamp; + bool btn_mic_state; + unsigned long flags; + int i; + + /* + * DualSense in USB uses the full HID report for reportID 1, but + * Bluetooth uses a minimal HID report for reportID 1 and reports + * the full report using reportID 49. + */ + if (hdev->bus == BUS_USB && report->id == DS_INPUT_REPORT_USB && + size == DS_INPUT_REPORT_USB_SIZE) { + ds_report = (struct dualsense_input_report *)&data[1]; + } else if (hdev->bus == BUS_BLUETOOTH && report->id == DS_INPUT_REPORT_BT && + size == DS_INPUT_REPORT_BT_SIZE) { + /* Last 4 bytes of input report contain crc32 */ + uint32_t report_crc = get_unaligned_le32(&data[size - 4]); + + if (!ps_check_crc32(PS_INPUT_CRC32_SEED, data, size - 4, report_crc)) { + hid_err(hdev, "DualSense input CRC's check failed\n"); + return -EILSEQ; + } + + ds_report = (struct dualsense_input_report *)&data[2]; + } else { + hid_err(hdev, "Unhandled reportID=%d\n", report->id); + return -1; + } + + input_report_abs(ds->gamepad, ABS_X, ds_report->x); + input_report_abs(ds->gamepad, ABS_Y, ds_report->y); + input_report_abs(ds->gamepad, ABS_RX, ds_report->rx); + input_report_abs(ds->gamepad, ABS_RY, ds_report->ry); + input_report_abs(ds->gamepad, ABS_Z, ds_report->z); + input_report_abs(ds->gamepad, ABS_RZ, ds_report->rz); + + value = ds_report->buttons[0] & DS_BUTTONS0_HAT_SWITCH; + if (value >= ARRAY_SIZE(ps_gamepad_hat_mapping)) + value = 8; /* center */ + input_report_abs(ds->gamepad, ABS_HAT0X, ps_gamepad_hat_mapping[value].x); + input_report_abs(ds->gamepad, ABS_HAT0Y, ps_gamepad_hat_mapping[value].y); + + input_report_key(ds->gamepad, BTN_WEST, ds_report->buttons[0] & DS_BUTTONS0_SQUARE); + input_report_key(ds->gamepad, BTN_SOUTH, ds_report->buttons[0] & DS_BUTTONS0_CROSS); + input_report_key(ds->gamepad, BTN_EAST, ds_report->buttons[0] & DS_BUTTONS0_CIRCLE); + input_report_key(ds->gamepad, BTN_NORTH, ds_report->buttons[0] & DS_BUTTONS0_TRIANGLE); + input_report_key(ds->gamepad, BTN_TL, ds_report->buttons[1] & DS_BUTTONS1_L1); + input_report_key(ds->gamepad, BTN_TR, ds_report->buttons[1] & DS_BUTTONS1_R1); + input_report_key(ds->gamepad, BTN_TL2, ds_report->buttons[1] & DS_BUTTONS1_L2); + input_report_key(ds->gamepad, BTN_TR2, ds_report->buttons[1] & DS_BUTTONS1_R2); + input_report_key(ds->gamepad, BTN_SELECT, ds_report->buttons[1] & DS_BUTTONS1_CREATE); + input_report_key(ds->gamepad, BTN_START, ds_report->buttons[1] & DS_BUTTONS1_OPTIONS); + input_report_key(ds->gamepad, BTN_THUMBL, ds_report->buttons[1] & DS_BUTTONS1_L3); + input_report_key(ds->gamepad, BTN_THUMBR, ds_report->buttons[1] & DS_BUTTONS1_R3); + input_report_key(ds->gamepad, BTN_MODE, ds_report->buttons[2] & DS_BUTTONS2_PS_HOME); + input_sync(ds->gamepad); + + /* + * The DualSense has an internal microphone, which can be muted through a mute button + * on the device. The driver is expected to read the button state and program the device + * to mute/unmute audio at the hardware level. + */ + btn_mic_state = !!(ds_report->buttons[2] & DS_BUTTONS2_MIC_MUTE); + if (btn_mic_state && !ds->last_btn_mic_state) { + spin_lock_irqsave(&ps_dev->lock, flags); + ds->update_mic_mute = true; + ds->mic_muted = !ds->mic_muted; /* toggle */ + spin_unlock_irqrestore(&ps_dev->lock, flags); + + /* Schedule updating of microphone state at hardware level. */ + dualsense_schedule_work(ds); + } + ds->last_btn_mic_state = btn_mic_state; + + /* Parse and calibrate gyroscope data. */ + for (i = 0; i < ARRAY_SIZE(ds_report->gyro); i++) { + int raw_data = (short)le16_to_cpu(ds_report->gyro[i]); + int calib_data = mult_frac(ds->gyro_calib_data[i].sens_numer, + raw_data, ds->gyro_calib_data[i].sens_denom); + + input_report_abs(ds->sensors, ds->gyro_calib_data[i].abs_code, calib_data); + } + + /* Parse and calibrate accelerometer data. */ + for (i = 0; i < ARRAY_SIZE(ds_report->accel); i++) { + int raw_data = (short)le16_to_cpu(ds_report->accel[i]); + int calib_data = mult_frac(ds->accel_calib_data[i].sens_numer, + raw_data - ds->accel_calib_data[i].bias, + ds->accel_calib_data[i].sens_denom); + + input_report_abs(ds->sensors, ds->accel_calib_data[i].abs_code, calib_data); + } + + /* Convert timestamp (in 0.33us unit) to timestamp_us */ + sensor_timestamp = le32_to_cpu(ds_report->sensor_timestamp); + if (!ds->sensor_timestamp_initialized) { + ds->sensor_timestamp_us = DIV_ROUND_CLOSEST(sensor_timestamp, 3); + ds->sensor_timestamp_initialized = true; + } else { + uint32_t delta; + + if (ds->prev_sensor_timestamp > sensor_timestamp) + delta = (U32_MAX - ds->prev_sensor_timestamp + sensor_timestamp + 1); + else + delta = sensor_timestamp - ds->prev_sensor_timestamp; + ds->sensor_timestamp_us += DIV_ROUND_CLOSEST(delta, 3); + } + ds->prev_sensor_timestamp = sensor_timestamp; + input_event(ds->sensors, EV_MSC, MSC_TIMESTAMP, ds->sensor_timestamp_us); + input_sync(ds->sensors); + + 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; + + switch (charging_status) { + case 0x0: + /* + * Each unit of battery data corresponds to 10% + * 0 = 0-9%, 1 = 10-19%, .. and 10 = 100% + */ + battery_capacity = min(battery_data * 10 + 5, 100); + battery_status = POWER_SUPPLY_STATUS_DISCHARGING; + break; + case 0x1: + battery_capacity = min(battery_data * 10 + 5, 100); + battery_status = POWER_SUPPLY_STATUS_CHARGING; + break; + case 0x2: + battery_capacity = 100; + battery_status = POWER_SUPPLY_STATUS_FULL; + break; + case 0xa: /* voltage or temperature out of range */ + case 0xb: /* temperature error */ + battery_capacity = 0; + battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING; + break; + case 0xf: /* charging error */ + default: + battery_capacity = 0; + battery_status = POWER_SUPPLY_STATUS_UNKNOWN; + } + + spin_lock_irqsave(&ps_dev->lock, flags); + ps_dev->battery_capacity = battery_capacity; + ps_dev->battery_status = battery_status; + spin_unlock_irqrestore(&ps_dev->lock, flags); + + return 0; +} + +static int dualsense_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect) +{ + struct hid_device *hdev = input_get_drvdata(dev); + struct dualsense *ds = hid_get_drvdata(hdev); + unsigned long flags; + + if (effect->type != FF_RUMBLE) + return 0; + + spin_lock_irqsave(&ds->base.lock, flags); + ds->update_rumble = true; + ds->motor_left = effect->u.rumble.strong_magnitude / 256; + ds->motor_right = effect->u.rumble.weak_magnitude / 256; + spin_unlock_irqrestore(&ds->base.lock, flags); + + dualsense_schedule_work(ds); + return 0; +} + +static void dualsense_remove(struct ps_device *ps_dev) +{ + struct dualsense *ds = container_of(ps_dev, struct dualsense, base); + unsigned long flags; + + spin_lock_irqsave(&ds->base.lock, flags); + ds->output_worker_initialized = false; + spin_unlock_irqrestore(&ds->base.lock, flags); + + cancel_work_sync(&ds->output_worker); +} + +static int dualsense_reset_leds(struct dualsense *ds) +{ + struct dualsense_output_report report; + uint8_t *buf; + + buf = kzalloc(sizeof(struct dualsense_output_report_bt), GFP_KERNEL); + if (!buf) + return -ENOMEM; + + dualsense_init_output_report(ds, &report, buf); + /* + * On Bluetooth the DualSense outputs an animation on the lightbar + * during startup and maintains a color afterwards. We need to explicitly + * reconfigure the lightbar before we can do any programming later on. + * In USB the lightbar is not on by default, but redoing the setup there + * doesn't hurt. + */ + report.common->valid_flag2 = DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE; + report.common->lightbar_setup = DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT; /* Fade light out. */ + dualsense_send_output_report(ds, &report); + + kfree(buf); + return 0; +} + +static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue) +{ + unsigned long flags; + + spin_lock_irqsave(&ds->base.lock, flags); + ds->update_lightbar = true; + ds->lightbar_red = red; + ds->lightbar_green = green; + ds->lightbar_blue = blue; + spin_unlock_irqrestore(&ds->base.lock, flags); + + dualsense_schedule_work(ds); +} + +static void dualsense_set_player_leds(struct dualsense *ds) +{ + /* + * The DualSense controller has a row of 5 LEDs used for player ids. + * Behavior on the PlayStation 5 console is to center the player id + * across the LEDs, so e.g. player 1 would be "--x--" with x being 'on'. + * Follow a similar mapping here. + */ + static const int player_ids[5] = { + BIT(2), + BIT(3) | BIT(1), + BIT(4) | BIT(2) | BIT(0), + BIT(4) | BIT(3) | BIT(1) | BIT(0), + BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0) + }; + + uint8_t player_id = ds->base.player_id % ARRAY_SIZE(player_ids); + + ds->update_player_leds = true; + ds->player_leds_state = player_ids[player_id]; + dualsense_schedule_work(ds); +} + +static struct ps_device *dualsense_create(struct hid_device *hdev) +{ + struct dualsense *ds; + struct ps_device *ps_dev; + uint8_t max_output_report_size; + int i, ret; + + static const struct ps_led_info player_leds_info[] = { + { LED_FUNCTION_PLAYER1, "white", 1, dualsense_player_led_get_brightness, + dualsense_player_led_set_brightness }, + { LED_FUNCTION_PLAYER2, "white", 1, dualsense_player_led_get_brightness, + dualsense_player_led_set_brightness }, + { LED_FUNCTION_PLAYER3, "white", 1, dualsense_player_led_get_brightness, + dualsense_player_led_set_brightness }, + { LED_FUNCTION_PLAYER4, "white", 1, dualsense_player_led_get_brightness, + dualsense_player_led_set_brightness }, + { LED_FUNCTION_PLAYER5, "white", 1, dualsense_player_led_get_brightness, + dualsense_player_led_set_brightness } + }; + + ds = devm_kzalloc(&hdev->dev, sizeof(*ds), GFP_KERNEL); + if (!ds) + return ERR_PTR(-ENOMEM); + + /* + * Patch version to allow userspace to distinguish between + * hid-generic vs hid-playstation axis and button mapping. + */ + hdev->version |= HID_PLAYSTATION_VERSION_PATCH; + + ps_dev = &ds->base; + ps_dev->hdev = hdev; + spin_lock_init(&ps_dev->lock); + ps_dev->battery_capacity = 100; /* initial value until parse_report. */ + ps_dev->battery_status = POWER_SUPPLY_STATUS_UNKNOWN; + ps_dev->parse_report = dualsense_parse_report; + ps_dev->remove = dualsense_remove; + INIT_WORK(&ds->output_worker, dualsense_output_worker); + ds->output_worker_initialized = true; + hid_set_drvdata(hdev, ds); + + max_output_report_size = sizeof(struct dualsense_output_report_bt); + ds->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL); + if (!ds->output_report_dmabuf) + return ERR_PTR(-ENOMEM); + + ret = dualsense_get_mac_address(ds); + if (ret) { + hid_err(hdev, "Failed to get MAC address from DualSense\n"); + return ERR_PTR(ret); + } + snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds->base.mac_address); + + ret = dualsense_get_firmware_info(ds); + if (ret) { + hid_err(hdev, "Failed to get firmware info from DualSense\n"); + return ERR_PTR(ret); + } + + /* Original DualSense firmware simulated classic controller rumble through + * its new haptics hardware. It felt different from classic rumble users + * were used to. Since then new firmwares were introduced to change behavior + * and make this new 'v2' behavior default on PlayStation and other platforms. + * The original DualSense requires a new enough firmware as bundled with PS5 + * software released in 2021. DualSense edge supports it out of the box. + * Both devices also support the old mode, but it is not really used. + */ + if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER) { + /* Feature version 2.21 introduced new vibration method. */ + ds->use_vibration_v2 = ds->update_version >= DS_FEATURE_VERSION(2, 21); + } else if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) { + ds->use_vibration_v2 = true; + } + + ret = ps_devices_list_add(ps_dev); + if (ret) + return ERR_PTR(ret); + + ret = dualsense_get_calibration_data(ds); + if (ret) { + hid_err(hdev, "Failed to get calibration data from DualSense\n"); + goto err; + } + + ds->gamepad = ps_gamepad_create(hdev, dualsense_play_effect); + if (IS_ERR(ds->gamepad)) { + ret = PTR_ERR(ds->gamepad); + goto err; + } + /* Use gamepad input device name as primary device name for e.g. LEDs */ + ps_dev->input_dev_name = dev_name(&ds->gamepad->dev); + + ds->sensors = ps_sensors_create(hdev, DS_ACC_RANGE, DS_ACC_RES_PER_G, + DS_GYRO_RANGE, DS_GYRO_RES_PER_DEG_S); + if (IS_ERR(ds->sensors)) { + ret = PTR_ERR(ds->sensors); + 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; + + /* + * The hardware may have control over the LEDs (e.g. in Bluetooth on startup). + * Reset the LEDs (lightbar, mute, player leds), so we can control them + * from software. + */ + ret = dualsense_reset_leds(ds); + if (ret) + goto err; + + ret = ps_lightbar_register(ps_dev, &ds->lightbar, dualsense_lightbar_set_brightness); + if (ret) + goto err; + + /* Set default lightbar color. */ + dualsense_set_lightbar(ds, 0, 0, 128); /* blue */ + + for (i = 0; i < ARRAY_SIZE(player_leds_info); i++) { + const struct ps_led_info *led_info = &player_leds_info[i]; + + ret = ps_led_register(ps_dev, &ds->player_leds[i], led_info); + if (ret < 0) + goto err; + } + + ret = ps_device_set_player_id(ps_dev); + if (ret) { + hid_err(hdev, "Failed to assign player id for DualSense: %d\n", ret); + goto err; + } + + /* Set player LEDs to our player id. */ + dualsense_set_player_leds(ds); + + /* + * Reporting hardware and firmware is important as there are frequent updates, which + * can change behavior. + */ + hid_info(hdev, "Registered DualSense controller hw_version=0x%08x fw_version=0x%08x\n", + ds->base.hw_version, ds->base.fw_version); + + return &ds->base; + +err: + ps_devices_list_remove(ps_dev); + return ERR_PTR(ret); +} + +static void dualshock4_dongle_calibration_work(struct work_struct *work) +{ + struct dualshock4 *ds4 = container_of(work, struct dualshock4, dongle_hotplug_worker); + unsigned long flags; + enum dualshock4_dongle_state dongle_state; + int ret; + + ret = dualshock4_get_calibration_data(ds4); + if (ret < 0) { + /* This call is very unlikely to fail for the dongle. When it + * fails we are probably in a very bad state, so mark the + * dongle as disabled. We will re-enable the dongle if a new + * DS4 hotplug is detect from sony_raw_event as any issues + * are likely resolved then (the dongle is quite stupid). + */ + hid_err(ds4->base.hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n"); + dongle_state = DONGLE_DISABLED; + } else { + hid_info(ds4->base.hdev, "DualShock 4 USB dongle: calibration completed\n"); + dongle_state = DONGLE_CONNECTED; + } + + spin_lock_irqsave(&ds4->base.lock, flags); + ds4->dongle_state = dongle_state; + spin_unlock_irqrestore(&ds4->base.lock, flags); +} + +static int dualshock4_get_calibration_data(struct dualshock4 *ds4) +{ + struct hid_device *hdev = ds4->base.hdev; + short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus; + short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus; + short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus; + short gyro_speed_plus, gyro_speed_minus; + short acc_x_plus, acc_x_minus; + short acc_y_plus, acc_y_minus; + short acc_z_plus, acc_z_minus; + int speed_2x; + int range_2g; + int ret = 0; + int i; + uint8_t *buf; + + if (ds4->base.hdev->bus == BUS_USB) { + int retries; + + buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + /* We should normally receive the feature report data we asked + * for, but hidraw applications such as Steam can issue feature + * reports as well. In particular for Dongle reconnects, Steam + * and this function are competing resulting in often receiving + * data for a different HID report, so retry a few times. + */ + for (retries = 0; retries < 3; retries++) { + ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION, buf, + DS4_FEATURE_REPORT_CALIBRATION_SIZE, true); + if (ret) { + if (retries < 2) { + hid_warn(hdev, "Retrying DualShock 4 get calibration report (0x02) request\n"); + continue; + } + + hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret); + ret = -EILSEQ; + goto err_free; + } else { + break; + } + } + } 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]); + 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]); + acc_x_minus = get_unaligned_le16(&buf[25]); + acc_y_plus = get_unaligned_le16(&buf[27]); + acc_y_minus = get_unaligned_le16(&buf[29]); + acc_z_plus = get_unaligned_le16(&buf[31]); + acc_z_minus = get_unaligned_le16(&buf[33]); + + /* + * Set gyroscope calibration and normalization parameters. + * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s. + */ + speed_2x = (gyro_speed_plus + gyro_speed_minus); + ds4->gyro_calib_data[0].abs_code = ABS_RX; + ds4->gyro_calib_data[0].bias = 0; + ds4->gyro_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S; + ds4->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) + + abs(gyro_pitch_minus - gyro_pitch_bias); + + ds4->gyro_calib_data[1].abs_code = ABS_RY; + ds4->gyro_calib_data[1].bias = 0; + ds4->gyro_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S; + ds4->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) + + abs(gyro_yaw_minus - gyro_yaw_bias); + + ds4->gyro_calib_data[2].abs_code = ABS_RZ; + ds4->gyro_calib_data[2].bias = 0; + ds4->gyro_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S; + ds4->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) + + abs(gyro_roll_minus - gyro_roll_bias); + + /* + * Sanity check gyro calibration data. This is needed to prevent crashes + * during report handling of virtual, clone or broken devices not implementing + * calibration data properly. + */ + for (i = 0; i < ARRAY_SIZE(ds4->gyro_calib_data); i++) { + if (ds4->gyro_calib_data[i].sens_denom == 0) { + hid_warn(hdev, "Invalid gyro calibration data for axis (%d), disabling calibration.", + ds4->gyro_calib_data[i].abs_code); + ds4->gyro_calib_data[i].bias = 0; + ds4->gyro_calib_data[i].sens_numer = DS4_GYRO_RANGE; + ds4->gyro_calib_data[i].sens_denom = S16_MAX; + } + } + + /* + * Set accelerometer calibration and normalization parameters. + * Data values will be normalized to 1/DS4_ACC_RES_PER_G g. + */ + range_2g = acc_x_plus - acc_x_minus; + ds4->accel_calib_data[0].abs_code = ABS_X; + ds4->accel_calib_data[0].bias = acc_x_plus - range_2g / 2; + ds4->accel_calib_data[0].sens_numer = 2*DS4_ACC_RES_PER_G; + ds4->accel_calib_data[0].sens_denom = range_2g; + + range_2g = acc_y_plus - acc_y_minus; + ds4->accel_calib_data[1].abs_code = ABS_Y; + ds4->accel_calib_data[1].bias = acc_y_plus - range_2g / 2; + ds4->accel_calib_data[1].sens_numer = 2*DS4_ACC_RES_PER_G; + ds4->accel_calib_data[1].sens_denom = range_2g; + + range_2g = acc_z_plus - acc_z_minus; + ds4->accel_calib_data[2].abs_code = ABS_Z; + ds4->accel_calib_data[2].bias = acc_z_plus - range_2g / 2; + ds4->accel_calib_data[2].sens_numer = 2*DS4_ACC_RES_PER_G; + ds4->accel_calib_data[2].sens_denom = range_2g; + + /* + * Sanity check accelerometer calibration data. This is needed to prevent crashes + * during report handling of virtual, clone or broken devices not implementing calibration + * data properly. + */ + for (i = 0; i < ARRAY_SIZE(ds4->accel_calib_data); i++) { + if (ds4->accel_calib_data[i].sens_denom == 0) { + hid_warn(hdev, "Invalid accelerometer calibration data for axis (%d), disabling calibration.", + ds4->accel_calib_data[i].abs_code); + ds4->accel_calib_data[i].bias = 0; + ds4->accel_calib_data[i].sens_numer = DS4_ACC_RANGE; + ds4->accel_calib_data[i].sens_denom = S16_MAX; + } + } + +err_free: + kfree(buf); + return ret; +} + +static int dualshock4_get_firmware_info(struct dualshock4 *ds4) +{ + uint8_t *buf; + int ret; + + buf = kzalloc(DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE, GFP_KERNEL); + 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, false); + if (ret) { + hid_err(ds4->base.hdev, "Failed to retrieve DualShock4 firmware info: %d\n", ret); + goto err_free; + } + + ds4->base.hw_version = get_unaligned_le16(&buf[35]); + ds4->base.fw_version = get_unaligned_le16(&buf[41]); + +err_free: + kfree(buf); + return ret; +} + +static int dualshock4_get_mac_address(struct dualshock4 *ds4) +{ + struct hid_device *hdev = ds4->base.hdev; + uint8_t *buf; + int ret = 0; + + 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; + } + + 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]); + + if (ret != sizeof(ds4->base.mac_address)) + return -EINVAL; + + return 0; + } + +err_free: + kfree(buf); + return ret; +} + +static enum led_brightness dualshock4_led_get_brightness(struct led_classdev *led) +{ + struct hid_device *hdev = to_hid_device(led->dev->parent); + struct dualshock4 *ds4 = hid_get_drvdata(hdev); + unsigned int led_index; + + led_index = led - ds4->lightbar_leds; + switch (led_index) { + case 0: + return ds4->lightbar_red; + case 1: + return ds4->lightbar_green; + case 2: + return ds4->lightbar_blue; + case 3: + return ds4->lightbar_enabled; + } + + return -1; +} + +static int dualshock4_led_set_blink(struct led_classdev *led, unsigned long *delay_on, + unsigned long *delay_off) +{ + struct hid_device *hdev = to_hid_device(led->dev->parent); + struct dualshock4 *ds4 = hid_get_drvdata(hdev); + unsigned long flags; + + spin_lock_irqsave(&ds4->base.lock, flags); + + if (!*delay_on && !*delay_off) { + /* Default to 1 Hz (50 centiseconds on, 50 centiseconds off). */ + ds4->lightbar_blink_on = 50; + ds4->lightbar_blink_off = 50; + } else { + /* Blink delays in centiseconds. */ + ds4->lightbar_blink_on = min_t(unsigned long, *delay_on/10, DS4_LIGHTBAR_MAX_BLINK); + ds4->lightbar_blink_off = min_t(unsigned long, *delay_off/10, DS4_LIGHTBAR_MAX_BLINK); + } + + ds4->update_lightbar_blink = true; + + spin_unlock_irqrestore(&ds4->base.lock, flags); + + dualshock4_schedule_work(ds4); + + *delay_on = ds4->lightbar_blink_on; + *delay_off = ds4->lightbar_blink_off; + + return 0; +} + +static int dualshock4_led_set_brightness(struct led_classdev *led, enum led_brightness value) +{ + struct hid_device *hdev = to_hid_device(led->dev->parent); + struct dualshock4 *ds4 = hid_get_drvdata(hdev); + unsigned long flags; + unsigned int led_index; + + spin_lock_irqsave(&ds4->base.lock, flags); + + led_index = led - ds4->lightbar_leds; + switch (led_index) { + case 0: + ds4->lightbar_red = value; + break; + case 1: + ds4->lightbar_green = value; + break; + case 2: + ds4->lightbar_blue = value; + break; + case 3: + ds4->lightbar_enabled = !!value; + } + + ds4->update_lightbar = true; + + spin_unlock_irqrestore(&ds4->base.lock, flags); + + dualshock4_schedule_work(ds4); + + return 0; +} + +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_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)); + usb->report_id = DS4_OUTPUT_REPORT_USB; + + rp->data = buf; + rp->len = sizeof(*usb); + rp->bt = NULL; + 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; + } + + if (ds4->update_lightbar) { + common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_LED; + /* Comptabile behavior with hid-sony, which used a dummy global LED to + * allow enabling/disabling the lightbar. The global LED maps to + * lightbar_enabled. + */ + common->lightbar_red = ds4->lightbar_enabled ? ds4->lightbar_red : 0; + common->lightbar_green = ds4->lightbar_enabled ? ds4->lightbar_green : 0; + common->lightbar_blue = ds4->lightbar_enabled ? ds4->lightbar_blue : 0; + ds4->update_lightbar = false; + } + + if (ds4->update_lightbar_blink) { + common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_LED_BLINK; + common->lightbar_blink_on = ds4->lightbar_blink_on; + common->lightbar_blink_off = ds4->lightbar_blink_off; + ds4->update_lightbar_blink = false; + } + + 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; + + if (ds4->update_bt_poll_interval) { + report.bt->hw_control |= ds4->bt_poll_interval; + ds4->update_bt_poll_interval = false; + } + + 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); +} + +static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *report, + u8 *data, int size) +{ + struct hid_device *hdev = ps_dev->hdev; + struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base); + struct dualshock4_input_report_common *ds4_report; + struct dualshock4_touch_report *touch_reports; + uint8_t battery_capacity, num_touch_reports, value; + int battery_status, i, j; + uint16_t sensor_timestamp; + unsigned long flags; + + /* + * DualShock4 in USB uses the full HID report for reportID 1, but + * Bluetooth uses a minimal HID report for reportID 1 and reports + * the full report using reportID 17. + */ + if (hdev->bus == BUS_USB && report->id == DS4_INPUT_REPORT_USB && + size == DS4_INPUT_REPORT_USB_SIZE) { + struct dualshock4_input_report_usb *usb = (struct dualshock4_input_report_usb *)data; + + 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; + uint32_t report_crc = get_unaligned_le32(&bt->crc32); + + /* Last 4 bytes of input report contains CRC. */ + if (!ps_check_crc32(PS_INPUT_CRC32_SEED, data, size - 4, report_crc)) { + 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; + } + + input_report_abs(ds4->gamepad, ABS_X, ds4_report->x); + input_report_abs(ds4->gamepad, ABS_Y, ds4_report->y); + input_report_abs(ds4->gamepad, ABS_RX, ds4_report->rx); + input_report_abs(ds4->gamepad, ABS_RY, ds4_report->ry); + input_report_abs(ds4->gamepad, ABS_Z, ds4_report->z); + input_report_abs(ds4->gamepad, ABS_RZ, ds4_report->rz); + + value = ds4_report->buttons[0] & DS_BUTTONS0_HAT_SWITCH; + if (value >= ARRAY_SIZE(ps_gamepad_hat_mapping)) + value = 8; /* center */ + input_report_abs(ds4->gamepad, ABS_HAT0X, ps_gamepad_hat_mapping[value].x); + input_report_abs(ds4->gamepad, ABS_HAT0Y, ps_gamepad_hat_mapping[value].y); + + input_report_key(ds4->gamepad, BTN_WEST, ds4_report->buttons[0] & DS_BUTTONS0_SQUARE); + input_report_key(ds4->gamepad, BTN_SOUTH, ds4_report->buttons[0] & DS_BUTTONS0_CROSS); + input_report_key(ds4->gamepad, BTN_EAST, ds4_report->buttons[0] & DS_BUTTONS0_CIRCLE); + input_report_key(ds4->gamepad, BTN_NORTH, ds4_report->buttons[0] & DS_BUTTONS0_TRIANGLE); + input_report_key(ds4->gamepad, BTN_TL, ds4_report->buttons[1] & DS_BUTTONS1_L1); + input_report_key(ds4->gamepad, BTN_TR, ds4_report->buttons[1] & DS_BUTTONS1_R1); + input_report_key(ds4->gamepad, BTN_TL2, ds4_report->buttons[1] & DS_BUTTONS1_L2); + input_report_key(ds4->gamepad, BTN_TR2, ds4_report->buttons[1] & DS_BUTTONS1_R2); + input_report_key(ds4->gamepad, BTN_SELECT, ds4_report->buttons[1] & DS_BUTTONS1_CREATE); + input_report_key(ds4->gamepad, BTN_START, ds4_report->buttons[1] & DS_BUTTONS1_OPTIONS); + input_report_key(ds4->gamepad, BTN_THUMBL, ds4_report->buttons[1] & DS_BUTTONS1_L3); + input_report_key(ds4->gamepad, BTN_THUMBR, ds4_report->buttons[1] & DS_BUTTONS1_R3); + input_report_key(ds4->gamepad, BTN_MODE, ds4_report->buttons[2] & DS_BUTTONS2_PS_HOME); + input_sync(ds4->gamepad); + + /* Parse and calibrate gyroscope data. */ + for (i = 0; i < ARRAY_SIZE(ds4_report->gyro); i++) { + int raw_data = (short)le16_to_cpu(ds4_report->gyro[i]); + int calib_data = mult_frac(ds4->gyro_calib_data[i].sens_numer, + raw_data, ds4->gyro_calib_data[i].sens_denom); + + input_report_abs(ds4->sensors, ds4->gyro_calib_data[i].abs_code, calib_data); + } + + /* Parse and calibrate accelerometer data. */ + for (i = 0; i < ARRAY_SIZE(ds4_report->accel); i++) { + int raw_data = (short)le16_to_cpu(ds4_report->accel[i]); + int calib_data = mult_frac(ds4->accel_calib_data[i].sens_numer, + raw_data - ds4->accel_calib_data[i].bias, + ds4->accel_calib_data[i].sens_denom); + + input_report_abs(ds4->sensors, ds4->accel_calib_data[i].abs_code, calib_data); + } + + /* Convert timestamp (in 5.33us unit) to timestamp_us */ + sensor_timestamp = le16_to_cpu(ds4_report->sensor_timestamp); + if (!ds4->sensor_timestamp_initialized) { + ds4->sensor_timestamp_us = DIV_ROUND_CLOSEST(sensor_timestamp*16, 3); + ds4->sensor_timestamp_initialized = true; + } else { + uint16_t delta; + + if (ds4->prev_sensor_timestamp > sensor_timestamp) + delta = (U16_MAX - ds4->prev_sensor_timestamp + sensor_timestamp + 1); + else + delta = sensor_timestamp - ds4->prev_sensor_timestamp; + ds4->sensor_timestamp_us += DIV_ROUND_CLOSEST(delta*16, 3); + } + ds4->prev_sensor_timestamp = sensor_timestamp; + input_event(ds4->sensors, EV_MSC, MSC_TIMESTAMP, ds4->sensor_timestamp_us); + input_sync(ds4->sensors); + + for (i = 0; i < num_touch_reports; i++) { + struct dualshock4_touch_report *touch_report = &touch_reports[i]; + + for (j = 0; j < ARRAY_SIZE(touch_report->points); j++) { + struct dualshock4_touch_point *point = &touch_report->points[j]; + bool active = (point->contact & DS4_TOUCH_POINT_INACTIVE) ? false : true; + + input_mt_slot(ds4->touchpad, j); + input_mt_report_slot_state(ds4->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(ds4->touchpad, ABS_MT_POSITION_X, x); + input_report_abs(ds4->touchpad, ABS_MT_POSITION_Y, y); + } + } + input_mt_sync_frame(ds4->touchpad); + input_sync(ds4->touchpad); + } + input_report_key(ds4->touchpad, BTN_LEFT, ds4_report->buttons[2] & DS_BUTTONS2_TOUCHPAD); + + /* + * Interpretation of the battery_capacity data depends on the cable state. + * When no cable is connected (bit4 is 0): + * - 0:10: percentage in units of 10%. + * When a cable is plugged in: + * - 0-10: percentage in units of 10%. + * - 11: battery is full + * - 14: not charging due to Voltage or temperature error + * - 15: charge error + */ + if (ds4_report->status[0] & DS4_STATUS0_CABLE_STATE) { + uint8_t battery_data = ds4_report->status[0] & DS4_STATUS0_BATTERY_CAPACITY; + + if (battery_data < 10) { + /* Take the mid-point for each battery capacity value, + * because on the hardware side 0 = 0-9%, 1=10-19%, etc. + * This matches official platform behavior, which does + * the same. + */ + battery_capacity = battery_data * 10 + 5; + battery_status = POWER_SUPPLY_STATUS_CHARGING; + } else if (battery_data == 10) { + battery_capacity = 100; + battery_status = POWER_SUPPLY_STATUS_CHARGING; + } else if (battery_data == DS4_BATTERY_STATUS_FULL) { + battery_capacity = 100; + battery_status = POWER_SUPPLY_STATUS_FULL; + } else { /* 14, 15 and undefined values */ + battery_capacity = 0; + battery_status = POWER_SUPPLY_STATUS_UNKNOWN; + } + } else { + uint8_t battery_data = ds4_report->status[0] & DS4_STATUS0_BATTERY_CAPACITY; + + if (battery_data < 10) + battery_capacity = battery_data * 10 + 5; + else /* 10 */ + battery_capacity = 100; + + battery_status = POWER_SUPPLY_STATUS_DISCHARGING; + } + + spin_lock_irqsave(&ps_dev->lock, flags); + ps_dev->battery_capacity = battery_capacity; + ps_dev->battery_status = battery_status; + spin_unlock_irqrestore(&ps_dev->lock, flags); + + return 0; +} + +static int dualshock4_dongle_parse_report(struct ps_device *ps_dev, struct hid_report *report, + u8 *data, int size) +{ + struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base); + bool connected = false; + + /* The dongle reports data using the main USB report (0x1) no matter whether a controller + * is connected with mostly zeros. The report does contain dongle status, which we use to + * determine if a controller is connected and if so we forward to the regular DualShock4 + * parsing code. + */ + if (data[0] == DS4_INPUT_REPORT_USB && size == DS4_INPUT_REPORT_USB_SIZE) { + struct dualshock4_input_report_common *ds4_report = (struct dualshock4_input_report_common *)&data[1]; + unsigned long flags; + + connected = ds4_report->status[1] & DS4_STATUS1_DONGLE_STATE ? false : true; + + if (ds4->dongle_state == DONGLE_DISCONNECTED && connected) { + hid_info(ps_dev->hdev, "DualShock 4 USB dongle: controller connected\n"); + + dualshock4_set_default_lightbar_colors(ds4); + + spin_lock_irqsave(&ps_dev->lock, flags); + ds4->dongle_state = DONGLE_CALIBRATING; + spin_unlock_irqrestore(&ps_dev->lock, flags); + + schedule_work(&ds4->dongle_hotplug_worker); + + /* Don't process the report since we don't have + * calibration data, but let hidraw have it anyway. + */ + return 0; + } else if ((ds4->dongle_state == DONGLE_CONNECTED || + ds4->dongle_state == DONGLE_DISABLED) && !connected) { + hid_info(ps_dev->hdev, "DualShock 4 USB dongle: controller disconnected\n"); + + spin_lock_irqsave(&ps_dev->lock, flags); + ds4->dongle_state = DONGLE_DISCONNECTED; + spin_unlock_irqrestore(&ps_dev->lock, flags); + + /* Return 0, so hidraw can get the report. */ + return 0; + } else if (ds4->dongle_state == DONGLE_CALIBRATING || + ds4->dongle_state == DONGLE_DISABLED || + ds4->dongle_state == DONGLE_DISCONNECTED) { + /* Return 0, so hidraw can get the report. */ + return 0; + } + } + + if (connected) + return dualshock4_parse_report(ps_dev, report, data, size); + + 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); + + if (ps_dev->hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) + cancel_work_sync(&ds4->dongle_hotplug_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 void dualshock4_set_bt_poll_interval(struct dualshock4 *ds4, uint8_t interval) +{ + ds4->bt_poll_interval = interval; + ds4->update_bt_poll_interval = true; + dualshock4_schedule_work(ds4); +} + +/* Set default lightbar color based on player. */ +static void dualshock4_set_default_lightbar_colors(struct dualshock4 *ds4) +{ + /* Use same player colors as PlayStation 4. + * Array of colors is in RGB. + */ + static const int player_colors[4][3] = { + { 0x00, 0x00, 0x40 }, /* Blue */ + { 0x40, 0x00, 0x00 }, /* Red */ + { 0x00, 0x40, 0x00 }, /* Green */ + { 0x20, 0x00, 0x20 } /* Pink */ + }; + + uint8_t player_id = ds4->base.player_id % ARRAY_SIZE(player_colors); + + ds4->lightbar_enabled = true; + ds4->lightbar_red = player_colors[player_id][0]; + ds4->lightbar_green = player_colors[player_id][1]; + ds4->lightbar_blue = player_colors[player_id][2]; + + ds4->update_lightbar = true; + dualshock4_schedule_work(ds4); +} + +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 i, ret; + + /* The DualShock4 has an RGB lightbar, which the original hid-sony driver + * exposed as a set of 4 LEDs for the 3 color channels and a global control. + * Ideally this should have used the multi-color LED class, which didn't exist + * yet. In addition the driver used a naming scheme not compliant with the LED + * naming spec by using "<mac_address>:<color>", which contained many colons. + * We use a more compliant by using "<device_name>:<color>" name now. Ideally + * would have been "<device_name>:<color>:indicator", but that would break + * existing applications (e.g. Android). Nothing matches against MAC address. + */ + static const struct ps_led_info lightbar_leds_info[] = { + { NULL, "red", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness }, + { NULL, "green", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness }, + { NULL, "blue", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness }, + { NULL, "global", 1, dualshock4_led_get_brightness, dualshock4_led_set_brightness, + dualshock4_led_set_blink }, + }; + + ds4 = devm_kzalloc(&hdev->dev, sizeof(*ds4), GFP_KERNEL); + if (!ds4) + return ERR_PTR(-ENOMEM); + + /* + * Patch version to allow userspace to distinguish between + * hid-generic vs hid-playstation axis and button mapping. + */ + hdev->version |= HID_PLAYSTATION_VERSION_PATCH; + + ps_dev = &ds4->base; + ps_dev->hdev = hdev; + spin_lock_init(&ps_dev->lock); + 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_bt); + ds4->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL); + if (!ds4->output_report_dmabuf) + return ERR_PTR(-ENOMEM); + + if (hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) { + ds4->dongle_state = DONGLE_DISCONNECTED; + INIT_WORK(&ds4->dongle_hotplug_worker, dualshock4_dongle_calibration_work); + + /* Override parse report for dongle specific hotplug handling. */ + ps_dev->parse_report = dualshock4_dongle_parse_report; + } + + ret = dualshock4_get_mac_address(ds4); + if (ret) { + hid_err(hdev, "Failed to get MAC address from DualShock4\n"); + return ERR_PTR(ret); + } + snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds4->base.mac_address); + + ret = dualshock4_get_firmware_info(ds4); + if (ret) { + hid_err(hdev, "Failed to get firmware info from DualShock4\n"); + return ERR_PTR(ret); + } + + ret = ps_devices_list_add(ps_dev); + if (ret) + return ERR_PTR(ret); + + ret = dualshock4_get_calibration_data(ds4); + if (ret) { + hid_err(hdev, "Failed to get calibration data from DualShock4\n"); + goto err; + } + + ds4->gamepad = ps_gamepad_create(hdev, dualshock4_play_effect); + if (IS_ERR(ds4->gamepad)) { + ret = PTR_ERR(ds4->gamepad); + goto err; + } + + /* Use gamepad input device name as primary device name for e.g. LEDs */ + ps_dev->input_dev_name = dev_name(&ds4->gamepad->dev); + + ds4->sensors = ps_sensors_create(hdev, DS4_ACC_RANGE, DS4_ACC_RES_PER_G, + DS4_GYRO_RANGE, DS4_GYRO_RES_PER_DEG_S); + if (IS_ERR(ds4->sensors)) { + ret = PTR_ERR(ds4->sensors); + goto err; + } + + ds4->touchpad = ps_touchpad_create(hdev, DS4_TOUCHPAD_WIDTH, DS4_TOUCHPAD_HEIGHT, 2); + if (IS_ERR(ds4->touchpad)) { + ret = PTR_ERR(ds4->touchpad); + goto err; + } + + ret = ps_device_register_battery(ps_dev); + if (ret) + goto err; + + for (i = 0; i < ARRAY_SIZE(lightbar_leds_info); i++) { + const struct ps_led_info *led_info = &lightbar_leds_info[i]; + + ret = ps_led_register(ps_dev, &ds4->lightbar_leds[i], led_info); + if (ret < 0) + goto err; + } + + dualshock4_set_bt_poll_interval(ds4, DS4_BT_DEFAULT_POLL_INTERVAL_MS); + + ret = ps_device_set_player_id(ps_dev); + if (ret) { + hid_err(hdev, "Failed to assign player id for DualShock4: %d\n", ret); + goto err; + } + + dualshock4_set_default_lightbar_colors(ds4); + + /* + * Reporting hardware and firmware is important as there are frequent updates, which + * can change behavior. + */ + hid_info(hdev, "Registered DualShock4 controller hw_version=0x%08x fw_version=0x%08x\n", + ds4->base.hw_version, ds4->base.fw_version); + return &ds4->base; + +err: + ps_devices_list_remove(ps_dev); + return ERR_PTR(ret); +} + +static int ps_raw_event(struct hid_device *hdev, struct hid_report *report, + u8 *data, int size) +{ + struct ps_device *dev = hid_get_drvdata(hdev); + + if (dev && dev->parse_report) + return dev->parse_report(dev, report, data, size); + + return 0; +} + +static int ps_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + struct ps_device *dev; + int ret; + + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "Parse failed\n"); + return ret; + } + + ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW); + if (ret) { + hid_err(hdev, "Failed to start HID device\n"); + return ret; + } + + ret = hid_hw_open(hdev); + if (ret) { + hid_err(hdev, "Failed to open HID device\n"); + goto err_stop; + } + + if (hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER || + hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_2 || + hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) { + dev = dualshock4_create(hdev); + if (IS_ERR(dev)) { + hid_err(hdev, "Failed to create dualshock4.\n"); + ret = PTR_ERR(dev); + goto err_close; + } + } else if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER || + hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) { + dev = dualsense_create(hdev); + if (IS_ERR(dev)) { + hid_err(hdev, "Failed to create dualsense.\n"); + ret = PTR_ERR(dev); + goto err_close; + } + } + + return ret; + +err_close: + hid_hw_close(hdev); +err_stop: + hid_hw_stop(hdev); + return ret; +} + +static void ps_remove(struct hid_device *hdev) +{ + struct ps_device *dev = hid_get_drvdata(hdev); + + ps_devices_list_remove(dev); + ps_device_release_player_id(dev); + + if (dev->remove) + dev->remove(dev); + + hid_hw_close(hdev); + hid_hw_stop(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) }, + { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) }, + /* Sony DualSense controllers for PS5 */ + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) }, + { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) }, + { } +}; +MODULE_DEVICE_TABLE(hid, ps_devices); + +static struct hid_driver ps_driver = { + .name = "playstation", + .id_table = ps_devices, + .probe = ps_probe, + .remove = ps_remove, + .raw_event = ps_raw_event, + .driver = { + .dev_groups = ps_device_groups, + }, +}; + +static int __init ps_init(void) +{ + return hid_register_driver(&ps_driver); +} + +static void __exit ps_exit(void) +{ + hid_unregister_driver(&ps_driver); + ida_destroy(&ps_player_id_allocator); +} + +module_init(ps_init); +module_exit(ps_exit); + +MODULE_AUTHOR("Sony Interactive Entertainment"); +MODULE_DESCRIPTION("HID Driver for PlayStation peripherals."); +MODULE_LICENSE("GPL"); |