Added Roccat Elo 7.1 USB

src/device_registry.c

@@ -9,14 +9,15 @@
 #include "devices/logitech_gpro.h"
 #include "devices/logitech_zone_wired.h"
 #include "devices/roccat_elo_7_1_air.h"
+#include "devices/roccat_elo_7_1_usb.h"
 #include "devices/steelseries_arctis_1.h"
 #include "devices/steelseries_arctis_7.h"
 #include "devices/steelseries_arctis_9.h"
 #include "devices/steelseries_arctis_pro_wireless.h"
 
 #include <string.h>
 
-#define NUMDEVICES 13
+#define NUMDEVICES 14
 
 // array of pointers to device
 static struct device*(devicelist[NUMDEVICES]);
@@ -36,6 +37,7 @@ void init_devices()
     zone_wired_init(&devicelist[10]);
     elo71Air_init(&devicelist[11]);
     g432_init(&devicelist[12]);
+    elo71USB_init(&devicelist[13]);
 }
 
 int get_device(struct device* device_found, uint16_t idVendor, uint16_t idProduct)

src/devices/CMakeLists.txt

@@ -19,6 +19,8 @@ set(SOURCE_FILES ${SOURCE_FILES}
     ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctis_pro_wireless.h
     ${CMAKE_CURRENT_SOURCE_DIR}/roccat_elo_7_1_air.h
     ${CMAKE_CURRENT_SOURCE_DIR}/roccat_elo_7_1_air.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/roccat_elo_7_1_usb.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/roccat_elo_7_1_usb.c
     ${CMAKE_CURRENT_SOURCE_DIR}/logitech_g633_g933_935.c
     ${CMAKE_CURRENT_SOURCE_DIR}/logitech_g633_g933_935.h
     ${CMAKE_CURRENT_SOURCE_DIR}/logitech_gpro.c

src/devices/roccat_elo_7_1_usb.c

@@ -0,0 +1,92 @@
+#include "../device.h"
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+static struct device device_elo71USB;
+
+static const uint16_t PRODUCT_ID = 0x3a34;
+
+static int elo71USB_switch_lights(hid_device* hid_device, uint8_t on);
+
+void elo71USB_init(struct device** device)
+{
+    device_elo71USB.idVendor = VENDOR_ROCCAT;
+    device_elo71USB.idProductsSupported = &PRODUCT_ID;
+    device_elo71USB.numIdProducts = 1;
+    device_elo71USB.idInterface = 0;
+
+    strncpy(device_elo71USB.device_name, "ROCCAT Elo 7.1 USB", sizeof(device_elo71USB.device_name));
+
+    device_elo71USB.capabilities = CAP_LIGHTS;
+    device_elo71USB.switch_lights = &elo71USB_switch_lights;
+
+    *device = &device_elo71USB;
+}
+
+/*
+ * Sends size bytes from data to the headset.
+ * If out_buffer points to 64 byte of preallocated memory, send_receive will
+ * receive 64 byte into id over the HID stream.
+ *
+ * The Roccat Elo 71 Air hates, if it gets 64 bytes blocks to quickly. The
+ * windows software seems just to wait a bit, so send_receive does as well. :-/
+ *
+ * This function returns the code from hid_read or hid_write, if either no read
+ * was requested or hid_write already failed.
+ */
+static int send_receive(hid_device* hid_device, const uint8_t* data,
+    int size, uint8_t* out_buffer)
+{
+    struct timespec ts;
+    int r;
+
+    r = hid_write(hid_device, data, size);
+
+    if ((out_buffer != NULL) && (r >= 0)) {
+        r = hid_read(hid_device, out_buffer, 16);
+    }
+
+    ts.tv_sec = 0;
+    ts.tv_nsec = 40 * 1000000;
+    nanosleep(&ts, NULL);
+
+    return r;
+}
+
+static int elo71USB_switch_lights(hid_device* hid_device, uint8_t on)
+{
+    uint8_t cmd92[16] = { 0xff, 0x02 };
+    uint8_t cmd93[16] = { 0xff, 0x03, 0x00, 0x01 };
+    uint8_t cmd94[16] = { 0xff, 0x04, 0x00, 0x00, 0xf4 };
+    uint8_t cmd95[16] = { 0xff, 0x01 };
+    uint8_t cmd97[16] = { 0xff, 0x04 };
+
+    int r;
+
+    r = send_receive(hid_device, cmd92, sizeof(cmd92), NULL);
+    if (r <= 0)
+        return r;
+
+    r = send_receive(hid_device, cmd93, sizeof(cmd93), NULL);
+    if (r <= 0)
+        return r;
+
+    if (on == 1) {
+        r = send_receive(hid_device, cmd94, sizeof(cmd94), NULL);
+        if (r <= 0)
+            return r;
+    } else {
+        r = send_receive(hid_device, cmd97, sizeof(cmd97), NULL);
+        if (r <= 0)
+            return r;
+    }
+
+    r = send_receive(hid_device, cmd95, sizeof(cmd95), NULL);
+    if (r <= 0)
+        return r;
+
+    return 0;
+}

src/devices/roccat_elo_7_1_usb.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void elo71USB_init(struct device** device);