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HID: playstation: add DualShock4 battery support.

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Provide DualShock4 battery support through powersupply framework.

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 11:48:41 -07:00 committed by Jiri Kosina
parent 9a62280a1b
commit 8871ed304e
1 changed files with 66 additions and 4 deletions
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70
drivers/hid/hid-playstation.c
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@ -291,6 +291,12 @@ struct dualsense_output_report {
#define DS4_FEATURE_REPORT_PAIRING_INFO 0x12
#define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE 16
/* 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
struct dualshock4 {
struct ps_device base;
struct input_dev *gamepad;
@ -302,15 +308,16 @@ struct dualshock4_input_report_common {
uint8_t rx, ry;
uint8_t buttons[3];
uint8_t z, rz;
uint8_t reserved[20];
uint8_t status[2];
uint8_t reserved2;
} __packed;
static_assert(sizeof(struct dualshock4_input_report_common) == 29);
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 reserved[34];
uint8_t reserved[31];
} __packed;
static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE);
@ -1549,7 +1556,9 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *
struct hid_device *hdev = ps_dev->hdev;
struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base);
struct dualshock4_input_report_common *ds4_report;
uint8_t value;
uint8_t battery_capacity, value;
int battery_status;
unsigned long flags;
/*
* DualShock4 in USB uses the full HID report for reportID 1, but
@ -1594,6 +1603,53 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *
input_report_key(ds4->gamepad, BTN_MODE, ds4_report->buttons[2] & DS_BUTTONS2_PS_HOME);
input_sync(ds4->gamepad);
/*
* 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;
}
@ -1616,6 +1672,8 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
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;
hid_set_drvdata(hdev, ds4);
@ -1642,6 +1700,10 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
goto err;
}
ret = ps_device_register_battery(ps_dev);
if (ret)
goto err;
ret = ps_device_set_player_id(ps_dev);
if (ret) {
hid_err(hdev, "Failed to assign player id for DualShock4: %d\n", ret);