/*
- * HID driver for Saitek devices, currently only the PS1000 (USB gamepad).
+ * HID driver for Saitek devices.
+ *
+ * PS1000 (USB gamepad):
* Fixes the HID report descriptor by removing a non-existent axis and
* clearing the constant bit on the input reports for buttons and d-pad.
* (This module is based on "hid-ortek".)
- *
* Copyright (c) 2012 Andreas Hübner
+ *
+ * R.A.T.7, M.M.O.7 (USB gaming mice):
+ * Fixes the mode button which cycles through three constantly pressed
+ * buttons. All three press events are mapped to one button and the
+ * missing release event is generated immediately.
+ *
*/
/*
#include "hid-ids.h"
+#define SAITEK_FIX_PS1000 0x0001
+#define SAITEK_RELEASE_MODE_RAT7 0x0002
+#define SAITEK_RELEASE_MODE_MMO7 0x0004
+
+struct saitek_sc {
+ unsigned long quirks;
+ int mode;
+};
+
+static int saitek_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ unsigned long quirks = id->driver_data;
+ struct saitek_sc *ssc;
+ int ret;
+
+ ssc = devm_kzalloc(&hdev->dev, sizeof(*ssc), GFP_KERNEL);
+ if (ssc == NULL) {
+ hid_err(hdev, "can't alloc saitek descriptor\n");
+ return -ENOMEM;
+ }
+
+ ssc->quirks = quirks;
+ ssc->mode = -1;
+
+ hid_set_drvdata(hdev, ssc);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed\n");
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
- if (*rsize == 137 && rdesc[20] == 0x09 && rdesc[21] == 0x33
- && rdesc[94] == 0x81 && rdesc[95] == 0x03
- && rdesc[110] == 0x81 && rdesc[111] == 0x03) {
+ struct saitek_sc *ssc = hid_get_drvdata(hdev);
+
+ if ((ssc->quirks & SAITEK_FIX_PS1000) && *rsize == 137 &&
+ rdesc[20] == 0x09 && rdesc[21] == 0x33 &&
+ rdesc[94] == 0x81 && rdesc[95] == 0x03 &&
+ rdesc[110] == 0x81 && rdesc[111] == 0x03) {
hid_info(hdev, "Fixing up Saitek PS1000 report descriptor\n");
return rdesc;
}
+static int saitek_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size)
+{
+ struct saitek_sc *ssc = hid_get_drvdata(hdev);
+
+ if (ssc->quirks & SAITEK_RELEASE_MODE_RAT7 && size == 7) {
+ /* R.A.T.7 uses bits 13, 14, 15 for the mode */
+ int mode = -1;
+ if (raw_data[1] & 0x01)
+ mode = 0;
+ else if (raw_data[1] & 0x02)
+ mode = 1;
+ else if (raw_data[1] & 0x04)
+ mode = 2;
+
+ /* clear mode bits */
+ raw_data[1] &= ~0x07;
+
+ if (mode != ssc->mode) {
+ hid_dbg(hdev, "entered mode %d\n", mode);
+ if (ssc->mode != -1) {
+ /* use bit 13 as the mode button */
+ raw_data[1] |= 0x04;
+ }
+ ssc->mode = mode;
+ }
+ } else if (ssc->quirks & SAITEK_RELEASE_MODE_MMO7 && size == 8) {
+
+ /* M.M.O.7 uses bits 8, 22, 23 for the mode */
+ int mode = -1;
+ if (raw_data[1] & 0x80)
+ mode = 0;
+ else if (raw_data[2] & 0x01)
+ mode = 1;
+ else if (raw_data[2] & 0x02)
+ mode = 2;
+
+ /* clear mode bits */
+ raw_data[1] &= ~0x80;
+ raw_data[2] &= ~0x03;
+
+ if (mode != ssc->mode) {
+ hid_dbg(hdev, "entered mode %d\n", mode);
+ if (ssc->mode != -1) {
+ /* use bit 8 as the mode button, bits 22
+ * and 23 do not represent buttons
+ * according to the HID report descriptor
+ */
+ raw_data[1] |= 0x80;
+ }
+ ssc->mode = mode;
+ }
+ }
+
+ return 0;
+}
+
+static int saitek_event(struct hid_device *hdev, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct saitek_sc *ssc = hid_get_drvdata(hdev);
+ struct input_dev *input = field->hidinput->input;
+
+ if (usage->type == EV_KEY && value &&
+ (((ssc->quirks & SAITEK_RELEASE_MODE_RAT7) &&
+ usage->code - BTN_MOUSE == 10) ||
+ ((ssc->quirks & SAITEK_RELEASE_MODE_MMO7) &&
+ usage->code - BTN_MOUSE == 15))) {
+
+ input_report_key(input, usage->code, 1);
+
+ /* report missing release event */
+ input_report_key(input, usage->code, 0);
+
+ return 1;
+ }
+
+ return 0;
+}
+
static const struct hid_device_id saitek_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000)},
+ { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000),
+ .driver_data = SAITEK_FIX_PS1000 },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7),
+ .driver_data = SAITEK_RELEASE_MODE_RAT7 },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7),
+ .driver_data = SAITEK_RELEASE_MODE_MMO7 },
{ }
};
static struct hid_driver saitek_driver = {
.name = "saitek",
.id_table = saitek_devices,
- .report_fixup = saitek_report_fixup
+ .probe = saitek_probe,
+ .report_fixup = saitek_report_fixup,
+ .raw_event = saitek_raw_event,
+ .event = saitek_event,
};
module_hid_driver(saitek_driver);
projects / firefly-linux-kernel-4.4.55.git / blobdiff