1 files changed, 311 insertions, 0 deletions
diff --git a/bsp/at32/libraries/rt_drivers/drv_usbfsd.c b/bsp/at32/libraries/rt_drivers/drv_usbfsd.c
new file mode 100644
index 0000000000..494db5dabc
--- /dev/null
+++ b/bsp/at32/libraries/rt_drivers/drv_usbfsd.c
@@ -0,0 +1,311 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-02-28     leo          first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "usbd_int.h"
+#include "drv_common.h"
+#include "drv_usbfs.h"
+#include "drv_config.h"
+
+#if defined(BSP_USING_DEVICE_USBFS1) || defined(BSP_USING_DEVICE_USBFS2)
+
+static struct at32_usbfs *p_usbfs_instance = NULL;
+static struct ep_id endpoint_pool[] =
+{
+    {0x0,  USB_EP_ATTR_CONTROL,   USB_DIR_INOUT, 64, ID_ASSIGNED  },
+    {0x1,  USB_EP_ATTR_BULK,      USB_DIR_IN,    64, ID_UNASSIGNED},
+    {0x1,  USB_EP_ATTR_BULK,      USB_DIR_OUT,   64, ID_UNASSIGNED},
+    {0x2,  USB_EP_ATTR_INT,       USB_DIR_IN,    64, ID_UNASSIGNED},
+    {0x2,  USB_EP_ATTR_INT,       USB_DIR_OUT,   64, ID_UNASSIGNED},
+    {0x3,  USB_EP_ATTR_ISOC,      USB_DIR_IN,    64, ID_UNASSIGNED},
+    {0x3,  USB_EP_ATTR_ISOC,      USB_DIR_OUT,   64, ID_UNASSIGNED},
+    {0xFF, USB_EP_ATTR_TYPE_MASK, USB_DIR_MASK,  0,  ID_ASSIGNED  },
+};
+
+enum
+{
+#ifdef BSP_USING_DEVICE_USBFS1
+    USBFS1_INDEX,
+#endif
+#ifdef BSP_USING_DEVICE_USBFS2
+    USBFS2_INDEX,
+#endif
+};
+
+static struct at32_usbfs usbfsd_config[] = {
+#ifdef BSP_USING_DEVICE_USBFS1
+    USBFS1_CONFIG,
+#endif
+#ifdef BSP_USING_DEVICE_USBFS2
+    USBFS2_CONFIG,
+#endif
+};
+
+#ifdef BSP_USING_DEVICE_USBFS1
+void OTGFS1_IRQHandler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    usbd_irq_handler(p_usbfs_instance->p_otg_core);
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif
+
+#ifdef BSP_USING_DEVICE_USBFS2
+void OTGFS2_IRQHandler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    usbd_irq_handler(p_usbfs_instance->p_otg_core);
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif
+
+void usbd_reset_callback(usbd_core_type *udev)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+    rt_usbd_reset_handler(udcd);
+}
+
+void usbd_connectCallback(usbd_core_type *udev)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+    rt_usbd_connect_handler(udcd);
+}
+
+void usbd_disconnectCallback(usbd_core_type *udev)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+    rt_usbd_disconnect_handler(udcd);
+}
+
+void usbd_setup_phase_done_callback(usbd_core_type *udev)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+    rt_usbd_ep0_setup_handler(udcd, (struct urequest*)udev->setup_buffer);
+}
+
+void usbd_data_in_stage_callback(usbd_core_type *udev, uint32_t ept_num)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+
+    if (ept_num == 0)
+    {
+        rt_usbd_ep0_in_handler(udcd);
+    }
+    else
+    {
+        rt_usbd_ep_in_handler(udcd, 0x80 | ept_num, udev->ept_in[ept_num].trans_len);
+    }
+}
+
+void usbd_sof_callback(usbd_core_type *udev)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+    rt_usbd_sof_handler(udcd);
+}
+
+void usbd_data_out_stage_callback(usbd_core_type *udev, uint32_t ept_num)
+{
+    udcd_t udcd = (udcd_t)udev->pdata;
+
+    if (ept_num != 0)
+    {
+        rt_usbd_ep_out_handler(udcd, ept_num, udev->ept_out[ept_num].trans_len);
+    }
+    else
+    {
+        rt_usbd_ep0_out_handler(udcd, udev->ept_out[0].trans_len);
+    }
+}
+
+static rt_err_t _ep_set_stall(rt_uint8_t address)
+{
+    usbd_set_stall(&p_usbfs_instance->p_otg_core->dev, address);
+    return RT_EOK;
+}
+
+static rt_err_t _ep_clear_stall(rt_uint8_t address)
+{
+    usbd_clear_stall(&p_usbfs_instance->p_otg_core->dev, address);
+    return RT_EOK;
+}
+
+static rt_err_t _set_address(rt_uint8_t address)
+{
+    usbd_set_device_addr(&p_usbfs_instance->p_otg_core->dev, address);
+    return RT_EOK;
+}
+
+static rt_err_t _set_config(rt_uint8_t address)
+{
+    return RT_EOK;
+}
+
+static rt_err_t _ep_enable(uep_t ep)
+{
+    RT_ASSERT(ep != RT_NULL);
+    RT_ASSERT(ep->ep_desc != RT_NULL);
+
+    usbd_ept_open(&p_usbfs_instance->p_otg_core->dev, ep->ep_desc->bEndpointAddress, \
+                  ep->ep_desc->bmAttributes, ep->ep_desc->wMaxPacketSize);
+    return RT_EOK;
+}
+
+static rt_err_t _ep_disable(uep_t ep)
+{
+    RT_ASSERT(ep != RT_NULL);
+    RT_ASSERT(ep->ep_desc != RT_NULL);
+
+    usbd_ept_close(&p_usbfs_instance->p_otg_core->dev, ep->ep_desc->bEndpointAddress);
+    return RT_EOK;
+}
+
+static rt_size_t _ep_read(rt_uint8_t address, void *buffer)
+{
+    rt_size_t size = 0;
+    RT_ASSERT(buffer != RT_NULL);
+    return size;
+}
+
+static rt_size_t _ep_read_prepare(rt_uint8_t address, void *buffer, rt_size_t size)
+{
+    usbd_ept_recv(&p_usbfs_instance->p_otg_core->dev, address, buffer, size);
+    return size;
+}
+
+static rt_size_t _ep_write(rt_uint8_t address, void *buffer, rt_size_t size)
+{
+    usbd_ept_send(&p_usbfs_instance->p_otg_core->dev, address, buffer, size);
+    return size;
+}
+
+static rt_err_t _ep0_send_status(void)
+{
+    usbd_ept_send(&p_usbfs_instance->p_otg_core->dev, 0x00, NULL, 0);
+    return RT_EOK;
+}
+
+static rt_err_t _suspend(void)
+{
+    return RT_EOK;
+}
+
+static rt_err_t _wakeup(void)
+{
+    return RT_EOK;
+}
+
+static rt_err_t at32_dcd_init(rt_device_t device)
+{
+    /* usb gpio config */
+    at32_msp_usb_init(device);
+
+    /* enable otgfs irq */
+    nvic_irq_enable(p_usbfs_instance->irqn, 2, 0);
+
+    /* init usb */
+    p_usbfs_instance->p_otg_core->usb_reg = usb_global_select_core(p_usbfs_instance->id);
+
+    /* usb device core config */
+    usb_core_config(p_usbfs_instance->p_otg_core, USB_FULL_SPEED_CORE_ID);
+
+    if(p_usbfs_instance->p_otg_core->cfg.sof_out)
+    {
+      p_usbfs_instance->p_otg_core->usb_reg->gccfg_bit.sofouten = TRUE;
+    }
+
+    if(p_usbfs_instance->p_otg_core->cfg.vbusig)
+    {
+      p_usbfs_instance->p_otg_core->usb_reg->gccfg_bit.vbusig = TRUE;
+    }
+
+    /* usb device core init */
+    usbd_core_init(&(p_usbfs_instance->p_otg_core->dev), p_usbfs_instance->p_otg_core->usb_reg,
+                   USB_FULL_SPEED_CORE_ID);
+
+    return RT_EOK;
+}
+
+const static struct udcd_ops _udc_ops =
+{
+    _set_address,
+    _set_config,
+    _ep_set_stall,
+    _ep_clear_stall,
+    _ep_enable,
+    _ep_disable,
+    _ep_read_prepare,
+    _ep_read,
+    _ep_write,
+    _ep0_send_status,
+    _suspend,
+    _wakeup,
+};
+
+int at32_usbd_register(void)
+{
+    rt_size_t obj_num;
+    rt_err_t result = 0;
+    int index;
+
+    obj_num = sizeof(usbfsd_config) / sizeof(struct at32_usbfs);
+
+    for (index = 0; index < obj_num; index++) {
+        udcd_t udcd = (udcd_t)rt_malloc(sizeof(struct udcd));
+        if (udcd == RT_NULL)
+        {
+            rt_kprintf("uhcd malloc failed\r\n");
+            return -RT_ERROR;
+        }
+        rt_memset((void *)udcd, 0, sizeof(struct udcd));
+
+        otg_core_type *p_otg_core = (otg_core_type *)rt_malloc(sizeof(otg_core_type));
+        if (p_otg_core == RT_NULL)
+        {
+            rt_kprintf("otg_core malloc failed\r\n");
+            return -RT_ERROR;
+        }
+        rt_memset((void *)p_otg_core, 0, sizeof(otg_core_type));
+
+        udcd->parent.type = RT_Device_Class_USBDevice;
+        udcd->parent.init = at32_dcd_init;
+
+        udcd->parent.user_data = &(p_otg_core->dev);
+        udcd->ops = &_udc_ops;
+        p_otg_core->dev.pdata = udcd;
+        usbfsd_config[index].p_otg_core = p_otg_core;
+
+        /* register endpoint infomation */
+        udcd->ep_pool = endpoint_pool;
+        udcd->ep0.id = &endpoint_pool[0];
+
+        result = rt_device_register((rt_device_t)udcd, usbfsd_config[index].name, 0);
+        RT_ASSERT(result == RT_EOK);
+
+        p_usbfs_instance = &usbfsd_config[index];
+
+        result = rt_usb_device_init();
+        RT_ASSERT(result == RT_EOK);
+    }
+
+    return result;
+}
+
+INIT_DEVICE_EXPORT(at32_usbd_register);
+
+#endif