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linux/drivers/hid/hid-playstation.c
Max Staudt 947992c7fa HID: playstation: DS4: Fix calibration workaround for clone devices 
The logic in dualshock4_get_calibration_data() used uninitialised data
in case of a failed kzalloc() for the transfer buffer.

The solution is to group all business logic and all sanity checks
together, and jump only to the latter in case of an error.
While we're at it, factor out the axes' labelling, since it must happen
either way for input_report_abs() to succeed later on.

Thanks to Dan Carpenter for the Smatch static checker warning.

Fixes: a48a7cd85f ("HID: playstation: DS4: Don't fail on calibration data request")
Signed-off-by: Max Staudt <max@enpas.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2024-05-06 23:31:24 +02:00

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// 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
enum PS_TYPE {
PS_TYPE_PS4_DUALSHOCK4,
PS_TYPE_PS5_DUALSENSE,
};
/* 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_MINIMAL 0x01
#define DS4_INPUT_REPORT_BT_MINIMAL_SIZE 10
#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) {
ret = -ENOMEM;
goto transfer_failed;
}
/* 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_warn(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
ret = -EILSEQ;
goto transfer_failed;
} else {
break;
}
}
} else { /* Bluetooth */
buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto transfer_failed;
}
ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION_BT, buf,
DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, true);
if (ret) {
hid_warn(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
goto transfer_failed;
}
}
/* Transfer succeeded - parse the calibration data received. */
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]);
/* Done parsing the buffer, so let's free it. */
kfree(buf);
/*
* 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);
/*
* 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;
transfer_failed:
/*
* 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) {
ds4->gyro_calib_data[i].abs_code = ABS_RX + i;
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;
}
}
/*
* 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) {
ds4->accel_calib_data[i].abs_code = ABS_X + i;
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;
}
}
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);
/* Report scaled values back to LED subsystem */
*delay_on = ds4->lightbar_blink_on * 10;
*delay_off = ds4->lightbar_blink_off * 10;
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;
/* brightness = 0 also cancels blinking in Linux. */
if (!ds4->lightbar_enabled) {
ds4->lightbar_blink_off = 0;
ds4->lightbar_blink_on = 0;
ds4->update_lightbar_blink = true;
}
}
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;
bool is_minimal = false;
/*
* 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 if (hdev->bus == BUS_BLUETOOTH &&
report->id == DS4_INPUT_REPORT_BT_MINIMAL &&
size == DS4_INPUT_REPORT_BT_MINIMAL_SIZE) {
/* Some third-party pads never switch to the full 0x11 report.
* The short 0x01 report is 10 bytes long:
* u8 report_id == 0x01
* u8 first_bytes_of_full_report[9]
* So let's reuse the full report parser, and stop it after
* parsing the buttons.
*/
ds4_report = (struct dualshock4_input_report_common *)&data[1];
is_minimal = true;
} 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);
if (is_minimal)
return 0;
/* 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_warn(hdev, "Failed to get firmware info from DualShock4\n");
hid_warn(hdev, "HW/FW version data in sysfs will be invalid.\n");
}
ret = ps_devices_list_add(ps_dev);
if (ret)
return ERR_PTR(ret);
ret = dualshock4_get_calibration_data(ds4);
if (ret) {
hid_warn(hdev, "Failed to get calibration data from DualShock4\n");
hid_warn(hdev, "Gyroscope and accelerometer will be inaccurate.\n");
}
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 (id->driver_data == PS_TYPE_PS4_DUALSHOCK4) {
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 (id->driver_data == PS_TYPE_PS5_DUALSENSE) {
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),
.driver_data = PS_TYPE_PS4_DUALSHOCK4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
.driver_data = PS_TYPE_PS4_DUALSHOCK4 },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
.driver_data = PS_TYPE_PS4_DUALSHOCK4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
.driver_data = PS_TYPE_PS4_DUALSHOCK4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
.driver_data = PS_TYPE_PS4_DUALSHOCK4 },
/* Sony DualSense controllers for PS5 */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER),
.driver_data = PS_TYPE_PS5_DUALSENSE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER),
.driver_data = PS_TYPE_PS5_DUALSENSE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2),
.driver_data = PS_TYPE_PS5_DUALSENSE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2),
.driver_data = PS_TYPE_PS5_DUALSENSE },
{ }
};
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");
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