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HID: sony: add battery status reporting for the Sixaxis and Dualshock 4
Add battery status reporting for the Sixaxis and Dualshock 4 controllers. Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Frank Praznik
Jiri Kosina
parent
4988abf174
commit
d902f4724c
@ -30,6 +30,8 @@
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/leds.h>
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#include <linux/power_supply.h>
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#include <linux/spinlock.h>
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#include "hid-ids.h"
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@ -42,6 +44,7 @@
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#define DUALSHOCK4_CONTROLLER_BT BIT(6)
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#define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER_USB | BUZZ_CONTROLLER | DUALSHOCK4_CONTROLLER_USB)
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#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_USB)
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#define MAX_LEDS 4
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@ -487,18 +490,30 @@ static const unsigned int buzz_keymap[] = {
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[20] = BTN_TRIGGER_HAPPY20,
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};
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static enum power_supply_property sony_battery_props[] = {
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_CAPACITY,
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POWER_SUPPLY_PROP_SCOPE,
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POWER_SUPPLY_PROP_STATUS,
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};
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struct sony_sc {
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spinlock_t lock;
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struct hid_device *hdev;
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struct led_classdev *leds[MAX_LEDS];
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struct hid_report *output_report;
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unsigned long quirks;
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struct work_struct state_worker;
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struct power_supply battery;
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#ifdef CONFIG_SONY_FF
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__u8 left;
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__u8 right;
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#endif
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__u8 cable_state;
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__u8 battery_charging;
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__u8 battery_capacity;
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__u8 led_state[MAX_LEDS];
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__u8 led_count;
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};
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@ -599,6 +614,63 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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return rdesc;
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}
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static void sixaxis_parse_report(struct sony_sc *sc, __u8 *rd, int size)
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{
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static const __u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
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unsigned long flags;
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__u8 cable_state, battery_capacity, battery_charging;
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/* The sixaxis is charging if the battery value is 0xee
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* and it is fully charged if the value is 0xef.
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* It does not report the actual level while charging so it
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* is set to 100% while charging is in progress.
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*/
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if (rd[30] >= 0xee) {
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battery_capacity = 100;
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battery_charging = rd[30] & 0x01;
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} else {
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battery_capacity = sixaxis_battery_capacity[rd[30]];
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battery_charging = 0;
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}
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cable_state = (rd[31] >> 4) & 0x01;
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spin_lock_irqsave(&sc->lock, flags);
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sc->cable_state = cable_state;
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sc->battery_capacity = battery_capacity;
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sc->battery_charging = battery_charging;
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spin_unlock_irqrestore(&sc->lock, flags);
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}
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static void dualshock4_parse_report(struct sony_sc *sc, __u8 *rd, int size)
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{
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unsigned long flags;
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__u8 cable_state, battery_capacity, battery_charging;
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/* The lower 4 bits of byte 30 contain the battery level
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* and the 5th bit contains the USB cable state.
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*/
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cable_state = (rd[30] >> 4) & 0x01;
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battery_capacity = rd[30] & 0x0F;
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/* On USB the Dualshock 4 battery level goes from 0 to 11.
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* A battery level of 11 means fully charged.
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*/
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if (cable_state && battery_capacity == 11)
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battery_charging = 0;
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else
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battery_charging = 1;
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if (battery_capacity > 10)
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battery_capacity--;
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battery_capacity *= 10;
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spin_lock_irqsave(&sc->lock, flags);
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sc->cable_state = cable_state;
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sc->battery_capacity = battery_capacity;
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sc->battery_charging = battery_charging;
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spin_unlock_irqrestore(&sc->lock, flags);
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}
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static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
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__u8 *rd, int size)
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{
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@ -613,6 +685,11 @@ static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
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swap(rd[43], rd[44]);
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swap(rd[45], rd[46]);
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swap(rd[47], rd[48]);
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sixaxis_parse_report(sc, rd, size);
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} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
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size == 64) {
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dualshock4_parse_report(sc, rd, size);
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}
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return 0;
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@ -1011,6 +1088,91 @@ static void sony_destroy_ff(struct hid_device *hdev)
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}
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#endif
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static int sony_battery_get_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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struct sony_sc *sc = container_of(psy, struct sony_sc, battery);
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unsigned long flags;
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int ret = 0;
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u8 battery_charging, battery_capacity, cable_state;
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spin_lock_irqsave(&sc->lock, flags);
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battery_charging = sc->battery_charging;
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battery_capacity = sc->battery_capacity;
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cable_state = sc->cable_state;
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spin_unlock_irqrestore(&sc->lock, flags);
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switch (psp) {
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case POWER_SUPPLY_PROP_PRESENT:
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val->intval = 1;
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break;
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case POWER_SUPPLY_PROP_SCOPE:
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val->intval = POWER_SUPPLY_SCOPE_DEVICE;
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break;
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case POWER_SUPPLY_PROP_CAPACITY:
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val->intval = battery_capacity;
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break;
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case POWER_SUPPLY_PROP_STATUS:
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if (battery_charging)
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val->intval = POWER_SUPPLY_STATUS_CHARGING;
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else
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if (battery_capacity == 100 && cable_state)
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val->intval = POWER_SUPPLY_STATUS_FULL;
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else
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val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static int sony_battery_probe(struct sony_sc *sc)
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{
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static atomic_t power_id_seq = ATOMIC_INIT(0);
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unsigned long power_id;
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struct hid_device *hdev = sc->hdev;
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int ret;
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power_id = (unsigned long)atomic_inc_return(&power_id_seq);
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sc->battery.properties = sony_battery_props;
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sc->battery.num_properties = ARRAY_SIZE(sony_battery_props);
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sc->battery.get_property = sony_battery_get_property;
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sc->battery.type = POWER_SUPPLY_TYPE_BATTERY;
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sc->battery.use_for_apm = 0;
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sc->battery.name = kasprintf(GFP_KERNEL, "sony_controller_battery_%lu",
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power_id);
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if (!sc->battery.name)
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return -ENOMEM;
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ret = power_supply_register(&hdev->dev, &sc->battery);
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if (ret) {
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hid_err(hdev, "Unable to register battery device\n");
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goto err_free;
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}
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power_supply_powers(&sc->battery, &hdev->dev);
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return 0;
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err_free:
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kfree(sc->battery.name);
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sc->battery.name = NULL;
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return ret;
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}
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static void sony_battery_remove(struct sony_sc *sc)
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{
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if (!sc->battery.name)
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return;
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power_supply_unregister(&sc->battery);
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kfree(sc->battery.name);
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sc->battery.name = NULL;
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}
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static int sony_set_output_report(struct sony_sc *sc, int req_id, int req_size)
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{
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struct list_head *head, *list;
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@ -1101,14 +1263,31 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
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goto err_stop;
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}
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if (sc->quirks & SONY_BATTERY_SUPPORT) {
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ret = sony_battery_probe(sc);
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if (ret < 0)
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goto err_stop;
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/* Open the device to receive reports with battery info */
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ret = hid_hw_open(hdev);
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if (ret < 0) {
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hid_err(hdev, "hw open failed\n");
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goto err_stop;
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}
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}
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ret = sony_init_ff(hdev);
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if (ret < 0)
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goto err_stop;
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goto err_close;
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return 0;
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err_close:
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hid_hw_close(hdev);
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err_stop:
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if (sc->quirks & SONY_LED_SUPPORT)
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sony_leds_remove(hdev);
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if (sc->quirks & SONY_BATTERY_SUPPORT)
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sony_battery_remove(sc);
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hid_hw_stop(hdev);
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return ret;
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}
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@ -1120,6 +1299,11 @@ static void sony_remove(struct hid_device *hdev)
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if (sc->quirks & SONY_LED_SUPPORT)
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sony_leds_remove(hdev);
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if (sc->quirks & SONY_BATTERY_SUPPORT) {
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hid_hw_close(hdev);
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sony_battery_remove(sc);
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}
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sony_destroy_ff(hdev);
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hid_hw_stop(hdev);
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