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-rw-r--r--drivers/hid/hid-sony.c147
1 files changed, 113 insertions, 34 deletions
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index bc4269e559f1..b6e610289e9d 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -798,6 +798,12 @@ union sixaxis_output_report_01 {
__u8 buf[36];
};
+#define DS4_REPORT_0x02_SIZE 37
+#define DS4_REPORT_0x05_SIZE 32
+#define DS4_REPORT_0x11_SIZE 78
+#define DS4_REPORT_0x81_SIZE 7
+#define SIXAXIS_REPORT_0xF2_SIZE 18
+
static spinlock_t sony_dev_list_lock;
static LIST_HEAD(sony_device_list);
static DEFINE_IDA(sony_device_id_allocator);
@@ -811,6 +817,7 @@ struct sony_sc {
struct work_struct state_worker;
struct power_supply battery;
int device_id;
+ __u8 *output_report_dmabuf;
#ifdef CONFIG_SONY_FF
__u8 left;
@@ -1142,9 +1149,20 @@ static int sixaxis_set_operational_usb(struct hid_device *hdev)
static int sixaxis_set_operational_bt(struct hid_device *hdev)
{
- unsigned char buf[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
- return hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
+ static const __u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
+ __u8 *buf;
+ int ret;
+
+ buf = kmemdup(report, sizeof(report), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+
+ kfree(buf);
+
+ return ret;
}
/*
@@ -1153,10 +1171,19 @@ static int sixaxis_set_operational_bt(struct hid_device *hdev)
*/
static int dualshock4_set_operational_bt(struct hid_device *hdev)
{
- __u8 buf[37] = { 0 };
+ __u8 *buf;
+ int ret;
- return hid_hw_raw_request(hdev, 0x02, buf, sizeof(buf),
+ buf = kmalloc(DS4_REPORT_0x02_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(hdev, 0x02, buf, DS4_REPORT_0x02_SIZE,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+
+ kfree(buf);
+
+ return ret;
}
static void sixaxis_set_leds_from_id(int id, __u8 values[MAX_LEDS])
@@ -1471,9 +1498,7 @@ error_leds:
static void sixaxis_state_worker(struct work_struct *work)
{
- struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
- int n;
- union sixaxis_output_report_01 report = {
+ static const union sixaxis_output_report_01 default_report = {
.buf = {
0x01,
0x00, 0xff, 0x00, 0xff, 0x00,
@@ -1485,20 +1510,27 @@ static void sixaxis_state_worker(struct work_struct *work)
0x00, 0x00, 0x00, 0x00, 0x00
}
};
+ struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
+ struct sixaxis_output_report *report =
+ (struct sixaxis_output_report *)sc->output_report_dmabuf;
+ int n;
+
+ /* Initialize the report with default values */
+ memcpy(report, &default_report, sizeof(struct sixaxis_output_report));
#ifdef CONFIG_SONY_FF
- report.data.rumble.right_motor_on = sc->right ? 1 : 0;
- report.data.rumble.left_motor_force = sc->left;
+ report->rumble.right_motor_on = sc->right ? 1 : 0;
+ report->rumble.left_motor_force = sc->left;
#endif
- report.data.leds_bitmap |= sc->led_state[0] << 1;
- report.data.leds_bitmap |= sc->led_state[1] << 2;
- report.data.leds_bitmap |= sc->led_state[2] << 3;
- report.data.leds_bitmap |= sc->led_state[3] << 4;
+ report->leds_bitmap |= sc->led_state[0] << 1;
+ report->leds_bitmap |= sc->led_state[1] << 2;
+ report->leds_bitmap |= sc->led_state[2] << 3;
+ report->leds_bitmap |= sc->led_state[3] << 4;
/* Set flag for all leds off, required for 3rd party INTEC controller */
- if ((report.data.leds_bitmap & 0x1E) == 0)
- report.data.leds_bitmap |= 0x20;
+ if ((report->leds_bitmap & 0x1E) == 0)
+ report->leds_bitmap |= 0x20;
/*
* The LEDs in the report are indexed in reverse order to their
@@ -1511,28 +1543,30 @@ static void sixaxis_state_worker(struct work_struct *work)
*/
for (n = 0; n < 4; n++) {
if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
- report.data.led[3 - n].duty_off = sc->led_delay_off[n];
- report.data.led[3 - n].duty_on = sc->led_delay_on[n];
+ report->led[3 - n].duty_off = sc->led_delay_off[n];
+ report->led[3 - n].duty_on = sc->led_delay_on[n];
}
}
- hid_hw_raw_request(sc->hdev, report.data.report_id, report.buf,
- sizeof(report), HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
+ hid_hw_raw_request(sc->hdev, report->report_id, (__u8 *)report,
+ sizeof(struct sixaxis_output_report),
+ HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
}
static void dualshock4_state_worker(struct work_struct *work)
{
struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
struct hid_device *hdev = sc->hdev;
+ __u8 *buf = sc->output_report_dmabuf;
int offset;
- __u8 buf[78] = { 0 };
-
if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
+ memset(buf, 0, DS4_REPORT_0x05_SIZE);
buf[0] = 0x05;
buf[1] = 0xFF;
offset = 4;
} else {
+ memset(buf, 0, DS4_REPORT_0x11_SIZE);
buf[0] = 0x11;
buf[1] = 0xB0;
buf[3] = 0x0F;
@@ -1560,12 +1594,33 @@ static void dualshock4_state_worker(struct work_struct *work)
buf[offset++] = sc->led_delay_off[3];
if (sc->quirks & DUALSHOCK4_CONTROLLER_USB)
- hid_hw_output_report(hdev, buf, 32);
+ hid_hw_output_report(hdev, buf, DS4_REPORT_0x05_SIZE);
else
- hid_hw_raw_request(hdev, 0x11, buf, 78,
+ hid_hw_raw_request(hdev, 0x11, buf, DS4_REPORT_0x11_SIZE,
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
}
+static int sony_allocate_output_report(struct sony_sc *sc)
+{
+ if (sc->quirks & SIXAXIS_CONTROLLER)
+ sc->output_report_dmabuf =
+ kmalloc(sizeof(union sixaxis_output_report_01),
+ GFP_KERNEL);
+ else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
+ sc->output_report_dmabuf = kmalloc(DS4_REPORT_0x11_SIZE,
+ GFP_KERNEL);
+ else if (sc->quirks & DUALSHOCK4_CONTROLLER_USB)
+ sc->output_report_dmabuf = kmalloc(DS4_REPORT_0x05_SIZE,
+ GFP_KERNEL);
+ else
+ return 0;
+
+ if (!sc->output_report_dmabuf)
+ return -ENOMEM;
+
+ return 0;
+}
+
#ifdef CONFIG_SONY_FF
static int sony_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
@@ -1754,6 +1809,7 @@ static int sony_get_bt_devaddr(struct sony_sc *sc)
static int sony_check_add(struct sony_sc *sc)
{
+ __u8 *buf = NULL;
int n, ret;
if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
@@ -1769,36 +1825,44 @@ static int sony_check_add(struct sony_sc *sc)
return 0;
}
} else if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
- __u8 buf[7];
+ buf = kmalloc(DS4_REPORT_0x81_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
/*
* The MAC address of a DS4 controller connected via USB can be
* retrieved with feature report 0x81. The address begins at
* offset 1.
*/
- ret = hid_hw_raw_request(sc->hdev, 0x81, buf, sizeof(buf),
- HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+ ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
+ DS4_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
- if (ret != 7) {
+ if (ret != DS4_REPORT_0x81_SIZE) {
hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
- return ret < 0 ? ret : -EINVAL;
+ ret = ret < 0 ? ret : -EINVAL;
+ goto out_free;
}
memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
- __u8 buf[18];
+ buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
/*
* The MAC address of a Sixaxis controller connected via USB can
* be retrieved with feature report 0xf2. The address begins at
* offset 4.
*/
- ret = hid_hw_raw_request(sc->hdev, 0xf2, buf, sizeof(buf),
- HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+ ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
+ SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
- if (ret != 18) {
+ if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
- return ret < 0 ? ret : -EINVAL;
+ ret = ret < 0 ? ret : -EINVAL;
+ goto out_free;
}
/*
@@ -1811,7 +1875,13 @@ static int sony_check_add(struct sony_sc *sc)
return 0;
}
- return sony_check_add_dev_list(sc);
+ ret = sony_check_add_dev_list(sc);
+
+out_free:
+
+ kfree(buf);
+
+ return ret;
}
static int sony_set_device_id(struct sony_sc *sc)
@@ -1895,6 +1965,12 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
return ret;
}
+ ret = sony_allocate_output_report(sc);
+ if (ret < 0) {
+ hid_err(hdev, "failed to allocate the output report buffer\n");
+ goto err_stop;
+ }
+
ret = sony_set_device_id(sc);
if (ret < 0) {
hid_err(hdev, "failed to allocate the device id\n");
@@ -1984,6 +2060,7 @@ err_stop:
if (sc->quirks & SONY_BATTERY_SUPPORT)
sony_battery_remove(sc);
sony_cancel_work_sync(sc);
+ kfree(sc->output_report_dmabuf);
sony_remove_dev_list(sc);
sony_release_device_id(sc);
hid_hw_stop(hdev);
@@ -2004,6 +2081,8 @@ static void sony_remove(struct hid_device *hdev)
sony_cancel_work_sync(sc);
+ kfree(sc->output_report_dmabuf);
+
sony_remove_dev_list(sc);
sony_release_device_id(sc);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 02:39:01 +0100