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author | Roderick Colenbrander <roderick@gaikai.com> | 2022-10-29 11:48:41 -0700 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2022-11-11 11:07:08 +0100 |
commit | 8871ed304e6938361c28b3c86f64a4190dad7dbb (patch) | |
tree | 33df2a84be13027083d5ccf207c9feede5f937bc /drivers/hid | |
parent | 9a62280a1bdc71e89ea44395bd03829ad896c447 (diff) | |
download | linux-stable-8871ed304e6938361c28b3c86f64a4190dad7dbb.tar.gz linux-stable-8871ed304e6938361c28b3c86f64a4190dad7dbb.tar.bz2 linux-stable-8871ed304e6938361c28b3c86f64a4190dad7dbb.zip |
HID: playstation: add DualShock4 battery support.
Provide DualShock4 battery support through powersupply framework.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r-- | drivers/hid/hid-playstation.c | 70 |
1 files changed, 66 insertions, 4 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index df4353a4f1e9..20111aa20e86 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -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); |