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https://github.com/dougg3/mac-rom-simm-programmer.git
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9aa6748f3a
This implements a USB CDC serial port using the Nuvoton USBD driver. The USB handling is based on Nuvoton's BSP sample code, especially the IRQ handlers and descriptor buffer configuration. The descriptors have been adapted to be similar to the AVR version, and RX/TX functions have been written to implement an API closer to LUFA, which is what the SIMM programmer common code needs.
195 lines
5.4 KiB
C
195 lines
5.4 KiB
C
/****************************************************************************//**
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* @file descriptors.c
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* @version V0.10
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* @brief USBD descriptors
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*
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* SPDX-License-Identifier: Apache-2.0
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* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
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******************************************************************************/
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#include "usbcdc_hw.h"
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/// VID and PID of our device
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#define USB_VID 0x16D0
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#define USB_PID 0x06AA
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/// Device descriptor
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const uint8_t deviceDescriptor[] = {
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LEN_DEVICE, // bLength
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DESC_DEVICE, // bDescriptorType
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0x10, 0x01, // bcdUSB
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0x02, // bDeviceClass
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0x00, // bDeviceSubClass
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0x00, // bDeviceProtocol
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EP0_MAX_PKT_SIZE, // bMaxPacketSize0
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// idVendor
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USB_VID & 0x00FF, (USB_VID & 0xFF00) >> 8,
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// idProduct
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USB_PID & 0x00FF, (USB_PID & 0xFF00) >> 8,
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0x02, 0x00, // bcdDevice
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0x01, // iManufacturer
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0x02, // iProduct
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0x03, // iSerialNumber
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0x01 // bNumConfigurations
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};
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/// Config descriptor (includes interface, endpoint descriptors)
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const uint8_t configDescriptor[] =
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{
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LEN_CONFIG, // bLength
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DESC_CONFIG, // bDescriptorType
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0x3E, 0x00, // wTotalLength
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0x02, // bNumInterfaces
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0x01, // bConfigurationValue
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0x00, // iConfiguration
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0xC0, // bmAttributes
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0xFA, // MaxPower
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// Interface descriptor: communication class interface
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LEN_INTERFACE, // bLength
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DESC_INTERFACE, // bDescriptorType
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0x00, // bInterfaceNumber
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0x00, // bAlternateSetting
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0x01, // bNumEndpoints
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0x02, // bInterfaceClass
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0x02, // bInterfaceSubClass
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0x01, // bInterfaceProtocol
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0x00, // iInterface
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// Header functional descriptor
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0x05, // Size of the descriptor, in bytes
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0x24, // CS_INTERFACE descriptor type
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0x00, // Header functional descriptor subtype
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0x10, 0x01, // Communication device compliant to the communication spec. ver. 1.10
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// Abstract control management functional descriptor
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0x04, // Size of the descriptor, in bytes
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0x24, // CS_INTERFACE descriptor type
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0x02, // Abstract control management functional descriptor subtype
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0x06, // bmCapabilities
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// Union functional descriptor
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0x05, // bLength
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0x24, // bDescriptorType: CS_INTERFACE descriptor type
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0x06, // bDescriptorSubType
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0x00, // bMasterInterface
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0x01, // bSlaveInterface0
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// Endpoint descriptor
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LEN_ENDPOINT, // bLength
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DESC_ENDPOINT, // bDescriptorType
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(EP_INPUT | INT_IN_EP_NUM), // bEndpointAddress
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EP_INT, // bmAttributes
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EP2_MAX_PKT_SIZE, 0x00, // wMaxPacketSize
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0xFF, // bInterval
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// Interface descriptor: data class interface
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LEN_INTERFACE, // bLength
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DESC_INTERFACE, // bDescriptorType
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0x01, // bInterfaceNumber
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0x00, // bAlternateSetting
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0x02, // bNumEndpoints
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0x0A, // bInterfaceClass
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0x00, // bInterfaceSubClass
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0x00, // bInterfaceProtocol
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0x00, // iInterface
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// Endpoint descriptor
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LEN_ENDPOINT, // bLength
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DESC_ENDPOINT, // bDescriptorType
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(EP_OUTPUT | BULK_OUT_EP_NUM), // bEndpointAddress
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EP_BULK, // bmAttributes
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EP4_MAX_PKT_SIZE, 0x00, // wMaxPacketSize
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0x01, // bInterval
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// Endpoint descriptor
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LEN_ENDPOINT, // bLength
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DESC_ENDPOINT, // bDescriptorType
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(EP_INPUT | BULK_IN_EP_NUM), // bEndpointAddress
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EP_BULK, // bmAttributes
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EP3_MAX_PKT_SIZE, 0x00, // wMaxPacketSize
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0x01, // bInterval
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};
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/// Language descriptor
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const uint8_t languageStringDescriptor[4] =
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{
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4, // bLength
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DESC_STRING, // bDescriptorType
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0x09, 0x04 // English (United States)
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};
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/// Vendor string descriptor
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const uint8_t vendorStringDescriptor[] =
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{
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22,
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DESC_STRING,
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'D', 0,
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'o', 0,
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'u', 0,
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'g', 0,
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' ', 0,
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'B', 0,
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'r', 0,
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'o', 0,
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'w', 0,
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'n', 0,
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};
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/// Product string descriptor
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const uint8_t productStringDescriptor[] =
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{
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48, // bLength
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DESC_STRING, // bDescriptorType
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'M', 0,
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'a', 0,
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'c', 0,
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' ', 0,
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'R', 0,
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'O', 0,
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'M', 0,
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' ', 0,
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'S', 0,
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'I', 0,
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'M', 0,
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'M', 0,
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' ', 0,
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'P', 0,
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'r', 0,
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'o', 0,
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'g', 0,
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'r', 0,
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'a', 0,
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'm', 0,
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'm', 0,
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'e', 0,
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'r', 0,
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};
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/// Serial number string descriptor
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const uint8_t serialStringDescriptor[] =
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{
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4, // bLength
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DESC_STRING, // bDescriptorType
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'0', 0,
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};
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/// Array of string descriptors
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const uint8_t * const stringDescriptors[4] =
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{
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languageStringDescriptor,
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vendorStringDescriptor,
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productStringDescriptor,
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serialStringDescriptor
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};
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/// Descriptor info used by usbd.c
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const S_USBD_INFO_T gsInfo =
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{
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deviceDescriptor,
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configDescriptor,
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stringDescriptors,
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};
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