add Xbox gamepad driver component to SDK

components/usb/cherryusb/CMakeLists.txt

@@ -4,6 +4,7 @@ sdk_add_include_directories(osal)
 sdk_add_include_directories(core)
 sdk_add_include_directories(class/cdc)
 sdk_add_include_directories(class/hid)
+sdk_add_include_directories(class/xbox)
 sdk_add_include_directories(class/msc)
 sdk_add_include_directories(class/audio)
 sdk_add_include_directories(class/video)
@@ -54,6 +55,7 @@ sdk_library_add_sources(class/hid/usbh_hid.c)
 sdk_library_add_sources(class/hub/usbh_hub.c)
 sdk_library_add_sources(class/video/usbh_video.c)
 sdk_library_add_sources(class/audio/usbh_audio.c)
+sdk_library_add_sources(class/vendor/xbox/usbh_xbox.c)
 
 if(CONFIG_CHERRYUSB_HOST_ECM)
 sdk_library_add_sources(class/cdc/usbh_cdc_ecm.c)

components/usb/cherryusb/class/vendor/xbox/usbh_xbox.c

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2024 Till Harbaum
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "usbh_core.h"
+#include "usbh_xbox.h"
+
+#define DEV_FORMAT "/dev/xbox%d"
+
+USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_xbox_buf[128];
+
+static struct usbh_xbox g_xbox_class[CONFIG_USBHOST_MAX_XBOX_CLASS];
+static uint32_t g_devinuse = 0;
+
+static struct usbh_xbox *usbh_xbox_class_alloc(void)
+{
+    int devno;
+
+    for (devno = 0; devno < CONFIG_USBHOST_MAX_XBOX_CLASS; devno++) {
+        if ((g_devinuse & (1 << devno)) == 0) {
+            g_devinuse |= (1 << devno);
+            memset(&g_xbox_class[devno], 0, sizeof(struct usbh_xbox));
+            g_xbox_class[devno].minor = devno;
+            return &g_xbox_class[devno];
+        }
+    }
+    return NULL;
+}
+
+static void usbh_xbox_class_free(struct usbh_xbox *xbox_class)
+{
+    int devno = xbox_class->minor;
+
+    if (devno >= 0 && devno < 32) {
+        g_devinuse &= ~(1 << devno);
+    }
+    memset(xbox_class, 0, sizeof(struct usbh_xbox));
+}
+
+int usbh_xbox_connect(struct usbh_hubport *hport, uint8_t intf)
+{
+    struct usb_endpoint_descriptor *ep_desc;
+
+    struct usbh_xbox *xbox_class = usbh_xbox_class_alloc();
+    if (xbox_class == NULL) {
+        USB_LOG_ERR("Fail to alloc xbox_class\r\n");
+        return -USB_ERR_NOMEM;
+    }
+
+    xbox_class->hport = hport;
+    xbox_class->intf = intf;
+
+    hport->config.intf[intf].priv = xbox_class;
+
+    for (uint8_t i = 0; i < hport->config.intf[intf].altsetting[0].intf_desc.bNumEndpoints; i++) {
+        ep_desc = &hport->config.intf[intf].altsetting[0].ep[i].ep_desc;
+        if (ep_desc->bEndpointAddress & 0x80) {
+            USBH_EP_INIT(xbox_class->intin, ep_desc);
+        } else {
+            USBH_EP_INIT(xbox_class->intout, ep_desc);
+        }
+    }
+
+    snprintf(hport->config.intf[intf].devname, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT, xbox_class->minor);
+
+    USB_LOG_INFO("Register XBOX Class:%s\r\n", hport->config.intf[intf].devname);
+
+    usbh_xbox_run(xbox_class);
+    return 0;
+}
+
+int usbh_xbox_disconnect(struct usbh_hubport *hport, uint8_t intf)
+{
+    int ret = 0;
+
+    struct usbh_xbox *xbox_class = (struct usbh_xbox *)hport->config.intf[intf].priv;
+
+    if (xbox_class) {
+        if (xbox_class->intin) {
+            usbh_kill_urb(&xbox_class->intin_urb);
+        }
+
+        if (xbox_class->intout) {
+            usbh_kill_urb(&xbox_class->intout_urb);
+        }
+
+        if (hport->config.intf[intf].devname[0] != '\0') {
+            USB_LOG_INFO("Unregister XBOX Class:%s\r\n", hport->config.intf[intf].devname);
+            usbh_xbox_stop(xbox_class);
+        }
+
+        usbh_xbox_class_free(xbox_class);
+    }
+
+    return ret;
+}
+
+__WEAK void usbh_xbox_run(struct usbh_xbox *xbox_class)
+{
+}
+
+__WEAK void usbh_xbox_stop(struct usbh_xbox *xbox_class)
+{
+}
+
+const struct usbh_class_driver xbox_class_driver = {
+    .driver_name = "xbox",
+    .connect = usbh_xbox_connect,
+    .disconnect = usbh_xbox_disconnect
+};
+
+CLASS_INFO_DEFINE const struct usbh_class_info xbox_custom_class_info = {
+    .match_flags = USB_CLASS_MATCH_INTF_CLASS| USB_CLASS_MATCH_INTF_SUBCLASS | USB_CLASS_MATCH_INTF_PROTOCOL,
+    .class = USB_DEVICE_CLASS_VEND_SPECIFIC,
+    .subclass = 0x5d,
+    .protocol = 0x01,
+    .vid = 0x00,
+    .pid = 0x00,
+    .class_driver = &xbox_class_driver
+};

components/usb/cherryusb/class/vendor/xbox/usbh_xbox.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2024, Till Harbaum
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef USBH_XBOX_H
+#define USBH_XBOX_H
+
+struct usbh_xbox {
+    struct usbh_hubport *hport;
+    struct usb_endpoint_descriptor *intin;  /* INTR IN endpoint */
+    struct usb_endpoint_descriptor *intout; /* INTR OUT endpoint */
+    struct usbh_urb intin_urb;              /* INTR IN urb */
+    struct usbh_urb intout_urb;             /* INTR OUT urb */
+
+    uint8_t intf; /* interface number */
+    uint8_t minor;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void usbh_xbox_run(struct usbh_xbox *xbox_class);
+void usbh_xbox_stop(struct usbh_xbox *xbox_class);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* USBH_XBOX_H */