SteelSeries Arctis 7 Battery Support + 2019 Model Support (#40)

* Add battery support for SteelSeries Arctis 7 (Pre-2019)

* Adding support for 2019 Arctis 7 variant.

* Correcting error in udev rules.

* Updating README.md to include updates for SteelSeries Arctis 7.

* Fix 50-steelseries-arctis-7.rules UDev rule, According to Udev versions
used in Ubuntu 19.04. Previous version did not work.

README.md

@@ -14,11 +14,15 @@ talking. This differs from a simple loopback via PulseAudio as you won't have an
 - Logitech G533
 - Logitech G430 (Last working on macOS in commit 41be99379f)
 - SteelSeries Arctis 7
+- SteelSeries Arctis 7 (2019 Revision)
 - SteelSeries Arctis Pro 2019 Edition
 
 ### Other Features
 
+
 Corsair Void (Pro) also supports checking of the battery and switching LED off/on
+SteelSeries Arctis 7 (including 2019 revision) support checking of the battery.
+
 
 For more features (like getting battery percentage of other devices, or settings LEDs etc. of specific devices), the protocol of the respective headset must be analyzed further. This can be done by capturing the USB traffic and analyzing it with WireShark or USBlyzer.
 

src/device_registry.c

@@ -8,12 +8,13 @@
 #include "devices/logitech_g633.h"
 #include "devices/logitech_g930.h"
 #include "devices/steelseries_arctis7.h"
+#include "devices/steelseries_arctis7_2019.h"
 #include "devices/steelseries_arctispro_2019.h"
 
 #include <string.h>
 
 
-#define NUMDEVICES 9
+#define NUMDEVICES 10
 // array of pointers to device
 static struct device *(devicelist[NUMDEVICES]);
 
@@ -27,7 +28,8 @@ void init_devices()
     g633_init(&devicelist[5]);
     g930_init(&devicelist[6]);
     arctis7_init(&devicelist[7]);
-    arctispro_2019_init(&devicelist[8]);
+    arctis7_2019_init(&devicelist[8]);
+    arctispro_2019_init(&devicelist[9]);
 }
 
 int get_device(struct device* device_found, uint16_t idVendor, uint16_t idProduct)

src/devices/CMakeLists.txt

@@ -15,6 +15,8 @@ set(SOURCE_FILES ${SOURCE_FILES}
     ${CMAKE_CURRENT_SOURCE_DIR}/logitech_g633.h
     ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctis7.c
     ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctis7.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctis7_2019.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctis7_2019.h
     ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctispro_2019.c
     ${CMAKE_CURRENT_SOURCE_DIR}/steelseries_arctispro_2019.h
     PARENT_SCOPE)

src/devices/steelseries_arctis7.c

@@ -8,6 +8,7 @@
 static struct device device_arctis7;
 
 static int arctis7_send_sidetone(hid_device *device_handle, uint8_t num);
+static int arctis7_request_battery(hid_device *device_handle);
 
 void arctis7_init(struct device** device)
 {
@@ -17,8 +18,9 @@ void arctis7_init(struct device** device)
 
     strcpy(device_arctis7.device_name, "SteelSeries Arctis 7");
 
-    device_arctis7.capabilities = CAP_SIDETONE;
+    device_arctis7.capabilities = CAP_SIDETONE | CAP_BATTERY_STATUS;
     device_arctis7.send_sidetone = &arctis7_send_sidetone;
+    device_arctis7.request_battery = &arctis7_request_battery;
 
     *device = &device_arctis7;
 }
@@ -55,3 +57,29 @@ static int arctis7_send_sidetone(hid_device *device_handle, uint8_t num)
 
     return ret;
 }
+
+static int arctis7_request_battery(hid_device *device_handle)
+{
+
+    int r = 0;
+
+    // request battery status
+    unsigned char data_request[2] = {0x06, 0x18};
+
+    r = hid_write(device_handle, data_request, 2);
+
+    if (r < 0) return r;
+
+    // read battery status
+    unsigned char data_read[8];
+
+    r = hid_read(device_handle, data_read, 8);
+
+    if (r < 0) return r;
+
+    int bat = data_read[2];
+
+    if (bat > 100) return 100;
+
+    return bat;
+}

src/devices/steelseries_arctis7_2019.c

@@ -0,0 +1,85 @@
+#include "../device.h"
+#include "../utility.h"
+
+#include <hidapi.h>
+#include <string.h>
+#include <stdlib.h>
+
+static struct device device_arctis7_2019;
+
+static int arctis7_2019_send_sidetone(hid_device *device_handle, uint8_t num);
+static int arctis7_2019_request_battery(hid_device *device_handle);
+
+void arctis7_2019_init(struct device** device)
+{
+    device_arctis7_2019.idVendor = VENDOR_STEELSERIES;
+    device_arctis7_2019.idProduct = 0x12ad;
+    device_arctis7_2019.idInterface = 0x05;
+
+    strcpy(device_arctis7_2019.device_name, "SteelSeries Arctis 7");
+
+    device_arctis7_2019.capabilities = CAP_SIDETONE | CAP_BATTERY_STATUS;
+    device_arctis7_2019.send_sidetone = &arctis7_2019_send_sidetone;
+    device_arctis7_2019.request_battery = &arctis7_2019_request_battery;
+
+    *device = &device_arctis7_2019;
+}
+
+static int arctis7_2019_send_sidetone(hid_device *device_handle, uint8_t num)
+{
+    int ret = -1;
+
+    // the range of the Arctis 7 seems to be from 0 to 0x12 (18)
+    num = map(num, 0, 128, 0x00, 0x12);
+
+    unsigned char *buf = calloc(31, 1);
+
+    if (!buf)
+    {
+        return ret;
+    }
+
+    const unsigned char data_on[5] = {0x06, 0x35, 0x01, 0x00, num};
+    const unsigned char data_off[2] = {0x06, 0x35};
+
+    if (num)
+    {
+        memmove(buf, data_on, sizeof(data_on));
+    }
+    else
+    {
+        memmove(buf, data_off, sizeof(data_off));
+    }
+
+    ret = hid_write(device_handle, buf, 31);
+
+    SAFE_FREE(buf);
+
+    return ret;
+}
+
+static int arctis7_2019_request_battery(hid_device *device_handle)
+{
+
+    int r = 0;
+
+    // request battery status
+    unsigned char data_request[2] = {0x06, 0x18};
+
+    r = hid_write(device_handle, data_request, 2);
+
+    if (r < 0) return r;
+
+    // read battery status
+    unsigned char data_read[8];
+
+    r = hid_read(device_handle, data_read, 8);
+
+    if (r < 0) return r;
+
+    int bat = data_read[2];
+
+    if (bat > 100) return 100;
+
+    return bat;
+}

src/devices/steelseries_arctis7_2019.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void arctis7_2019_init(struct device** device);

udev/50-steelseries-arctis-7-2019.rules

@@ -0,0 +1 @@
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="1038", ATTRS{idProduct}=="12ad", MODE="0666"

udev/50-steelseries-arctis-7.rules

@@ -1 +1 @@
-SUBSYSTEM=="hidraw", SUBSYSTEMS=="usb", ATTR{idVendor}=="1038", ATTR{idProduct}=="1260", MODE="0666"
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="1038", ATTRS{idProduct}=="1260", MODE="0666"