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HID: playstation: Add DualShock4 rumble support.

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This patch implements DualShock4 rumble support in a similar manner
as the DualSense implementation. It adds an output worker with
granular control of different features of the main DualShock4 output
report.

Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Roderick Colenbrander 2022-10-29 11:48:44 -07:00 committed by Jiri Kosina
parent 12882ed83c
commit 4e463ec4ba
1 changed files with 147 additions and 1 deletions
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148
drivers/hid/hid-playstation.c
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@ -285,6 +285,8 @@ struct dualsense_output_report {
#define DS4_INPUT_REPORT_USB 0x01
#define DS4_INPUT_REPORT_USB_SIZE 64
#define DS4_OUTPUT_REPORT_USB 0x05
#define DS4_OUTPUT_REPORT_USB_SIZE 32
#define DS4_FEATURE_REPORT_CALIBRATION 0x02
#define DS4_FEATURE_REPORT_CALIBRATION_SIZE 37
@ -306,6 +308,9 @@ struct dualsense_output_report {
/* Battery status within batery_status field. */
#define DS4_BATTERY_STATUS_FULL 11
/* Flags for DualShock4 output report. */
#define DS4_OUTPUT_VALID_FLAG0_MOTOR 0x01
/* DualShock4 hardware limits */
#define DS4_ACC_RES_PER_G 8192
#define DS4_ACC_RANGE (4*DS_ACC_RES_PER_G)
@ -328,6 +333,14 @@ struct dualshock4 {
bool sensor_timestamp_initialized;
uint32_t prev_sensor_timestamp;
uint32_t sensor_timestamp_us;
bool update_rumble;
uint8_t motor_left;
uint8_t motor_right;
struct work_struct output_worker;
bool output_worker_initialized;
void *output_report_dmabuf;
};
struct dualshock4_touch_point {
@ -372,6 +385,45 @@ struct dualshock4_input_report_usb {
} __packed;
static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE);
/* Common data between Bluetooth and USB DualShock4 output reports. */
struct dualshock4_output_report_common {
uint8_t valid_flag0;
uint8_t valid_flag1;
uint8_t reserved;
uint8_t motor_right;
uint8_t motor_left;
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
uint8_t lightbar_blink_on;
uint8_t lightbar_blink_off;
} __packed;
struct dualshock4_output_report_usb {
uint8_t report_id; /* 0x5 */
struct dualshock4_output_report_common common;
uint8_t reserved[21];
} __packed;
static_assert(sizeof(struct dualshock4_output_report_usb) == DS4_OUTPUT_REPORT_USB_SIZE);
/*
* The DualShock4 has a main output report used to control most features. It is
* largely the same between Bluetooth and USB except for different headers and CRC.
* This structure hide the differences between the two to simplify sending output reports.
*/
struct dualshock4_output_report {
uint8_t *data; /* Start of data */
uint8_t len; /* Size of output report */
/* Points to USB data payload in case for a USB report else NULL. */
struct dualshock4_output_report_usb *usb;
/* Points to common section of report, so past any headers. */
struct dualshock4_output_report_common *common;
};
/*
* Common gamepad buttons across DualShock 3 / 4 and DualSense.
* Note: for device with a touchpad, touchpad button is not included
@ -399,6 +451,7 @@ static const struct {int x; int y; } ps_gamepad_hat_mapping[] = {
};
static inline void dualsense_schedule_work(struct dualsense *ds);
static inline void dualshock4_schedule_work(struct dualshock4 *ds4);
static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue);
/*
@ -1692,6 +1745,49 @@ static int dualshock4_get_mac_address(struct dualshock4 *ds4)
return ret;
}
static void dualshock4_init_output_report(struct dualshock4 *ds4,
struct dualshock4_output_report *rp, void *buf)
{
struct hid_device *hdev = ds4->base.hdev;
if (hdev->bus == BUS_USB) {
struct dualshock4_output_report_usb *usb = buf;
memset(usb, 0, sizeof(*usb));
usb->report_id = DS4_OUTPUT_REPORT_USB;
rp->data = buf;
rp->len = sizeof(*usb);
rp->usb = usb;
rp->common = &usb->common;
}
}
static void dualshock4_output_worker(struct work_struct *work)
{
struct dualshock4 *ds4 = container_of(work, struct dualshock4, output_worker);
struct dualshock4_output_report report;
struct dualshock4_output_report_common *common;
unsigned long flags;
dualshock4_init_output_report(ds4, &report, ds4->output_report_dmabuf);
common = report.common;
spin_lock_irqsave(&ds4->base.lock, flags);
if (ds4->update_rumble) {
/* Select classic rumble style haptics and enable it. */
common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_MOTOR;
common->motor_left = ds4->motor_left;
common->motor_right = ds4->motor_right;
ds4->update_rumble = false;
}
spin_unlock_irqrestore(&ds4->base.lock, flags);
hid_hw_output_report(ds4->base.hdev, report.data, report.len);
}
static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *report,
u8 *data, int size)
{
@ -1860,10 +1956,52 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *
return 0;
}
static int dualshock4_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hdev = input_get_drvdata(dev);
struct dualshock4 *ds4 = hid_get_drvdata(hdev);
unsigned long flags;
if (effect->type != FF_RUMBLE)
return 0;
spin_lock_irqsave(&ds4->base.lock, flags);
ds4->update_rumble = true;
ds4->motor_left = effect->u.rumble.strong_magnitude / 256;
ds4->motor_right = effect->u.rumble.weak_magnitude / 256;
spin_unlock_irqrestore(&ds4->base.lock, flags);
dualshock4_schedule_work(ds4);
return 0;
}
static void dualshock4_remove(struct ps_device *ps_dev)
{
struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base);
unsigned long flags;
spin_lock_irqsave(&ds4->base.lock, flags);
ds4->output_worker_initialized = false;
spin_unlock_irqrestore(&ds4->base.lock, flags);
cancel_work_sync(&ds4->output_worker);
}
static inline void dualshock4_schedule_work(struct dualshock4 *ds4)
{
unsigned long flags;
spin_lock_irqsave(&ds4->base.lock, flags);
if (ds4->output_worker_initialized)
schedule_work(&ds4->output_worker);
spin_unlock_irqrestore(&ds4->base.lock, flags);
}
static struct ps_device *dualshock4_create(struct hid_device *hdev)
{
struct dualshock4 *ds4;
struct ps_device *ps_dev;
uint8_t max_output_report_size;
int ret;
ds4 = devm_kzalloc(&hdev->dev, sizeof(*ds4), GFP_KERNEL);
@ -1882,8 +2020,16 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
ps_dev->battery_capacity = 100; /* initial value until parse_report. */
ps_dev->battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
ps_dev->parse_report = dualshock4_parse_report;
ps_dev->remove = dualshock4_remove;
INIT_WORK(&ds4->output_worker, dualshock4_output_worker);
ds4->output_worker_initialized = true;
hid_set_drvdata(hdev, ds4);
max_output_report_size = sizeof(struct dualshock4_output_report_usb);
ds4->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL);
if (!ds4->output_report_dmabuf)
return ERR_PTR(-ENOMEM);
ret = dualshock4_get_mac_address(ds4);
if (ret) {
hid_err(hdev, "Failed to get MAC address from DualShock4\n");
@ -1907,7 +2053,7 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
goto err;
}
ds4->gamepad = ps_gamepad_create(hdev, NULL);
ds4->gamepad = ps_gamepad_create(hdev, dualshock4_play_effect);
if (IS_ERR(ds4->gamepad)) {
ret = PTR_ERR(ds4->gamepad);
goto err;