#ifndef _USB_CONFIG_H
#define _USB_CONFIG_H

#define ENDPOINTS 2

#define USB_PORT D
#define USB_PIN_DP 3
#define USB_PIN_DM 4
// #define USB_PIN_DPU 2

#define RV003USB_OPTIMIZE_FLASH    1
#define RV003USB_DEBUG_TIMING      0
#define RV003USB_EVENT_DEBUGGING   0
#define RV003USB_HANDLE_IN_REQUEST 0
#define RV003USB_OTHER_CONTROL     1
#define RV003USB_HANDLE_USER_DATA  1
#define RV003USB_HID_FEATURES      0
#define RV003USB_USB_TERMINAL      0
#define RV003USB_USE_REBOOT_FEATURE_REPORT 0

#ifndef __ASSEMBLER__

#include <stdint.h>

#ifdef INSTANCE_DESCRIPTORS

static const uint8_t device_descriptor[] = {
	18, 1,
	0x10, 0x01,   // USB 1.1
	0x00, 0x00, 0x00,
	0x08,         // EP0 max packet
	0xd0, 0xfa,   // idVendor  0xfad0
	0x00, 0x90,   // idProduct 0x9000
	0x02, 0x00,
	1, 2, 3,
	1,
};

static const uint8_t config_descriptor[] = {
	9, 2,
	0x20, 0x00,   // wTotalLength = 9 + 9 + 7 + 7
	0x01,         // bNumInterfaces
	0x01,         // bConfigurationValue
	0x00,
	0x80,
	0x64,

	9, 4,
	0,            // bInterfaceNumber
	0,            // bAlternateSetting
	2,            // bNumEndpoints
	0xff,         // vendor specific class
	0x00,
	0x00,
	0,

	7, 0x05,
	0x01,         // EP1 OUT
	0x03,         // interrupt
	0x08, 0x00,   // max packet 8
	10,           // interval ms

	7, 0x05,
	0x81,         // EP1 IN
	0x03,
	0x08, 0x00,
	10,
};

#define STR_MANUFACTURER u"That real manufacturer"
#define STR_PRODUCT      u"CH32V003 USB GPIO module"
#ifndef STR_SERIAL
#define STR_SERIAL       u"deadbeef"
#endif

struct usb_string_descriptor_struct {
	uint8_t bLength;
	uint8_t bDescriptorType;
	uint16_t wString[];
};
const static struct usb_string_descriptor_struct string0 __attribute__((section(".rodata"))) = { 4, 3, {0x0409} };
const static struct usb_string_descriptor_struct string1 __attribute__((section(".rodata"))) = { sizeof(STR_MANUFACTURER), 3, STR_MANUFACTURER };
const static struct usb_string_descriptor_struct string2 __attribute__((section(".rodata"))) = { sizeof(STR_PRODUCT), 3, STR_PRODUCT };
const static struct usb_string_descriptor_struct string3 __attribute__((section(".rodata"))) = { sizeof(STR_SERIAL), 3, STR_SERIAL };

const static struct descriptor_list_struct {
	uint32_t lIndexValue;
	const uint8_t *addr;
	uint8_t length;
} descriptor_list[] = {
	{0x00000100, device_descriptor, sizeof(device_descriptor)},
	{0x00000200, config_descriptor, sizeof(config_descriptor)},
	{0x00000300, (const uint8_t *)&string0, 4},
	{0x04090301, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
	{0x04090302, (const uint8_t *)&string2, sizeof(STR_PRODUCT)},
	{0x04090303, (const uint8_t *)&string3, sizeof(STR_SERIAL)}
};
#define DESCRIPTOR_LIST_ENTRIES ((sizeof(descriptor_list))/(sizeof(struct descriptor_list_struct)))

#endif
#endif
#endif