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HID: playstation: DS4: Don't fail on calibration data request

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Some third-party controllers can't report calibration data for the
gyro/accelerometer.

We can still use the gamepad as-is, so let's do that.

Signed-off-by: Max Staudt <max@enpas.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Max Staudt 2024-02-08 01:36:45 +09:00 committed by Jiri Kosina
parent 46089080a8
commit a48a7cd85f
1 changed files with 20 additions and 14 deletions
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34
drivers/hid/hid-playstation.c
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@ -1778,8 +1778,10 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
int retries;
buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (!buf) {
ret = -ENOMEM;
goto no_buffer_tail_check;
}
/* We should normally receive the feature report data we asked
* for, but hidraw applications such as Steam can issue feature
@ -1796,26 +1798,27 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
continue;
}
hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
hid_warn(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
ret = -EILSEQ;
goto err_free;
} else {
break;
}
}
} else { /* Bluetooth */
buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (!buf) {
ret = -ENOMEM;
goto no_buffer_tail_check;
}
ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION_BT, buf,
DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, true);
if (ret) {
hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
goto err_free;
}
if (ret)
hid_warn(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
}
/* Parse buffer. If the transfer failed, this safely copies zeroes. */
gyro_pitch_bias = get_unaligned_le16(&buf[1]);
gyro_yaw_bias = get_unaligned_le16(&buf[3]);
gyro_roll_bias = get_unaligned_le16(&buf[5]);
@ -1867,6 +1870,11 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
ds4->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) +
abs(gyro_roll_minus - gyro_roll_bias);
/* Done parsing the buffer, so let's free it. */
kfree(buf);
no_buffer_tail_check:
/*
* Sanity check gyro calibration data. This is needed to prevent crashes
* during report handling of virtual, clone or broken devices not implementing
@ -1919,8 +1927,6 @@ static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
}
}
err_free:
kfree(buf);
return ret;
}
@ -2568,8 +2574,8 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev)
ret = dualshock4_get_calibration_data(ds4);
if (ret) {
hid_err(hdev, "Failed to get calibration data from DualShock4\n");
goto err;
hid_warn(hdev, "Failed to get calibration data from DualShock4\n");
hid_warn(hdev, "Gyroscope and accelerometer will be inaccurate.\n");
}
ds4->gamepad = ps_gamepad_create(hdev, dualshock4_play_effect);