common: Broke the USB descriptors out to their own header

This commit is contained in:
dragonmux 2022-08-10 06:54:26 +01:00 committed by Piotr Esden-Tempski
parent d6f8a343a2
commit ada59291c2
4 changed files with 432 additions and 370 deletions

View File

@ -49,20 +49,10 @@
#include "version.h" #include "version.h"
#include <libopencm3/cm3/nvic.h> #include <libopencm3/cm3/nvic.h>
#include <libopencm3/usb/usbd.h>
#include <libopencm3/usb/cdc.h> #include <libopencm3/usb/cdc.h>
#include <libopencm3/cm3/scb.h> #include <libopencm3/cm3/scb.h>
#include <libopencm3/usb/dfu.h>
#define GDB_IF_NO 0 #include "usb_descriptors.h"
#define UART_IF_NO 2
#define DFU_IF_NO 4
#if defined(PLATFORM_HAS_TRACESWO)
# define TRACE_IF_NO 5
# define TOTAL_INTERFACES 6
#else
# define TOTAL_INTERFACES 5
#endif
usbd_device * usbdev; usbd_device * usbdev;
@ -71,359 +61,7 @@ static int cdcacm_gdb_dtr = 1;
static void cdcacm_set_modem_state(usbd_device *dev, int iface, bool dsr, bool dcd); static void cdcacm_set_modem_state(usbd_device *dev, int iface, bool dsr, bool dcd);
static const struct usb_device_descriptor dev_desc = { char serial_no[DFU_SERIAL_LENGTH];
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0xEF, /* Miscellaneous Device */
.bDeviceSubClass = 2, /* Common Class */
.bDeviceProtocol = 1, /* Interface Association */
#ifdef LM4F
.bMaxPacketSize0 = 64, /*Fixed for icdi*/
#else
.bMaxPacketSize0 = 32,
#endif
.idVendor = 0x1D50,
.idProduct = 0x6018,
.bcdDevice = 0x0100,
.iManufacturer = 1,
.iProduct = 2,
.iSerialNumber = 3,
.bNumConfigurations = 1,
};
/* This notification endpoint isn't implemented. According to CDC spec its
* optional, but its absence causes a NULL pointer dereference in Linux cdc_acm
* driver. */
static const struct usb_endpoint_descriptor gdb_comm_endp[] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = (CDCACM_GDB_ENDPOINT + 1) | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 16,
.bInterval = 255,
}};
static const struct usb_endpoint_descriptor gdb_data_endp[] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_GDB_ENDPOINT,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_GDB_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
}};
static const struct {
struct usb_cdc_header_descriptor header;
struct usb_cdc_call_management_descriptor call_mgmt;
struct usb_cdc_acm_descriptor acm;
struct usb_cdc_union_descriptor cdc_union;
} __attribute__((packed)) gdb_cdcacm_functional_descriptors = {
.header = {
.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
.bcdCDC = 0x0110,
},
.call_mgmt = {
.bFunctionLength =
sizeof(struct usb_cdc_call_management_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = GDB_IF_NO + 1,
},
.acm = {
.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_ACM,
.bmCapabilities = 2, /* SET_LINE_CODING supported */
},
.cdc_union = {
.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_UNION,
.bControlInterface = GDB_IF_NO,
.bSubordinateInterface0 = GDB_IF_NO + 1,
}
};
static const struct usb_interface_descriptor gdb_comm_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_CDC_PROTOCOL_NONE,
.iInterface = 4,
.endpoint = gdb_comm_endp,
.extra = &gdb_cdcacm_functional_descriptors,
.extralen = sizeof(gdb_cdcacm_functional_descriptors)
}};
static const struct usb_interface_descriptor gdb_data_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = GDB_IF_NO + 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_DATA,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = gdb_data_endp,
}};
static const struct usb_iface_assoc_descriptor gdb_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = GDB_IF_NO,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_CDC_PROTOCOL_NONE,
.iFunction = 4,
};
/* Serial ACM interface */
static const struct usb_endpoint_descriptor uart_comm_endp[] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = (CDCACM_UART_ENDPOINT + 1) | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 16,
.bInterval = 255,
}};
static const struct usb_endpoint_descriptor uart_data_endp[] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_UART_ENDPOINT,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE / 2,
.bInterval = 1,
}, {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_UART_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
}};
static const struct {
struct usb_cdc_header_descriptor header;
struct usb_cdc_call_management_descriptor call_mgmt;
struct usb_cdc_acm_descriptor acm;
struct usb_cdc_union_descriptor cdc_union;
} __attribute__((packed)) uart_cdcacm_functional_descriptors = {
.header = {
.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
.bcdCDC = 0x0110,
},
.call_mgmt = {
.bFunctionLength =
sizeof(struct usb_cdc_call_management_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = UART_IF_NO + 1,
},
.acm = {
.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_ACM,
.bmCapabilities = 2, /* SET_LINE_CODING supported*/
},
.cdc_union = {
.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_UNION,
.bControlInterface = UART_IF_NO,
.bSubordinateInterface0 = UART_IF_NO + 1,
}
};
static const struct usb_interface_descriptor uart_comm_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = UART_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_CDC_PROTOCOL_NONE,
.iInterface = 5,
.endpoint = uart_comm_endp,
.extra = &uart_cdcacm_functional_descriptors,
.extralen = sizeof(uart_cdcacm_functional_descriptors)
}};
static const struct usb_interface_descriptor uart_data_iface[] = {{
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = UART_IF_NO + 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_DATA,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = uart_data_endp,
}};
static const struct usb_iface_assoc_descriptor uart_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = UART_IF_NO,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_CDC_PROTOCOL_NONE,
.iFunction = 5,
};
const struct usb_dfu_descriptor dfu_function = {
.bLength = sizeof(struct usb_dfu_descriptor),
.bDescriptorType = DFU_FUNCTIONAL,
.bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH,
.wDetachTimeout = 255,
.wTransferSize = 1024,
.bcdDFUVersion = 0x011A,
};
const struct usb_interface_descriptor dfu_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = DFU_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 0,
.bInterfaceClass = 0xFE,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 1,
.iInterface = 6,
.extra = &dfu_function,
.extralen = sizeof(dfu_function),
};
static const struct usb_iface_assoc_descriptor dfu_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = DFU_IF_NO,
.bInterfaceCount = 1,
.bFunctionClass = 0xFE,
.bFunctionSubClass = 1,
.bFunctionProtocol = 1,
.iFunction = 6,
};
#if defined(PLATFORM_HAS_TRACESWO)
static const struct usb_endpoint_descriptor trace_endp[] = {{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = TRACE_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = 64,
.bInterval = 0,
}};
const struct usb_interface_descriptor trace_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = TRACE_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = 0xFF,
.bInterfaceSubClass = 0xFF,
.bInterfaceProtocol = 0xFF,
.iInterface = 7,
.endpoint = trace_endp,
};
static const struct usb_iface_assoc_descriptor trace_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = TRACE_IF_NO,
.bInterfaceCount = 1,
.bFunctionClass = 0xFF,
.bFunctionSubClass = 0xFF,
.bFunctionProtocol = 0xFF,
.iFunction = 7,
};
#endif
static const struct usb_interface ifaces[] = {{
.num_altsetting = 1,
.iface_assoc = &gdb_assoc,
.altsetting = gdb_comm_iface,
}, {
.num_altsetting = 1,
.altsetting = gdb_data_iface,
}, {
.num_altsetting = 1,
.iface_assoc = &uart_assoc,
.altsetting = uart_comm_iface,
}, {
.num_altsetting = 1,
.altsetting = uart_data_iface,
}, {
.num_altsetting = 1,
.iface_assoc = &dfu_assoc,
.altsetting = &dfu_iface,
#if defined(PLATFORM_HAS_TRACESWO)
}, {
.num_altsetting = 1,
.iface_assoc = &trace_assoc,
.altsetting = &trace_iface,
#endif
}};
static const struct usb_config_descriptor config = {
.bLength = USB_DT_CONFIGURATION_SIZE,
.bDescriptorType = USB_DT_CONFIGURATION,
.wTotalLength = 0,
.bNumInterfaces = TOTAL_INTERFACES,
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = 0x80,
.bMaxPower = 0x32,
.interface = ifaces,
};
static char serial_no[DFU_SERIAL_LENGTH];
#define BOARD_IDENT "Black Magic Probe " PLATFORM_IDENT FIRMWARE_VERSION
static const char *usb_strings[] = {
"Black Magic Debug",
BOARD_IDENT,
serial_no,
"Black Magic GDB Server",
"Black Magic UART Port",
"Black Magic DFU",
#if defined(PLATFORM_HAS_TRACESWO)
"Black Magic Trace Capture",
#endif
};
static void dfu_detach_complete(usbd_device *dev, struct usb_setup_data *req) static void dfu_detach_complete(usbd_device *dev, struct usb_setup_data *req)
{ {

View File

@ -30,12 +30,6 @@
#include "usb.h" #include "usb.h"
#define CDCACM_PACKET_SIZE 64
#define CDCACM_GDB_ENDPOINT 1
#define CDCACM_UART_ENDPOINT 3
#define TRACE_ENDPOINT 5
void blackmagic_usb_init(void); void blackmagic_usb_init(void);
/* Returns current usb configuration, or 0 if not configured. */ /* Returns current usb configuration, or 0 if not configured. */
int cdcacm_get_config(void); int cdcacm_get_config(void);

View File

@ -25,4 +25,10 @@
extern usbd_device *usbdev; extern usbd_device *usbdev;
#define CDCACM_PACKET_SIZE 64
#define CDCACM_GDB_ENDPOINT 1
#define CDCACM_UART_ENDPOINT 3
#define TRACE_ENDPOINT 5
#endif /*USB_H*/ #endif /*USB_H*/

View File

@ -0,0 +1,424 @@
/*
* This file is part of the Black Magic Debug project.
*
* Copyright (C) 2022 1BitSquared <info@1bitsquared.com>
* Written by Rachel Mant <git@dragonmux.network>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef USB_DESCRIPTORS_H
#define USB_DESCRIPTORS_H
#include <libopencm3/usb/usbd.h>
#include <libopencm3/usb/cdc.h>
#include <libopencm3/usb/dfu.h>
#include "usb.h"
#define BOARD_IDENT "Black Magic Probe " PLATFORM_IDENT FIRMWARE_VERSION
#define GDB_IF_NO 0
#define UART_IF_NO 2
#define DFU_IF_NO 4
#ifdef PLATFORM_HAS_TRACESWO
#define TRACE_IF_NO 5
#define TOTAL_INTERFACES 6
#else
#define TOTAL_INTERFACES 5
#endif
extern char serial_no[DFU_SERIAL_LENGTH];
/* Top-level device descriptor */
static const struct usb_device_descriptor dev_desc = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0xEF, /* Miscellaneous Device */
.bDeviceSubClass = 2, /* Common Class */
.bDeviceProtocol = 1, /* Interface Association */
#ifdef LM4F
.bMaxPacketSize0 = 64, /*Fixed for icdi*/
#else
.bMaxPacketSize0 = 32,
#endif
.idVendor = 0x1D50,
.idProduct = 0x6018,
.bcdDevice = 0x0100,
.iManufacturer = 1,
.iProduct = 2,
.iSerialNumber = 3,
.bNumConfigurations = 1,
};
/* GDB interface descriptors */
/* This notification endpoint isn't implemented. According to CDC spec its
* optional, but its absence causes a NULL pointer dereference in Linux cdc_acm
* driver. */
static const struct usb_endpoint_descriptor gdb_comm_endp = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = (CDCACM_GDB_ENDPOINT + 1) | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 16,
.bInterval = 255,
};
static const struct usb_endpoint_descriptor gdb_data_endp[] = {
{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_GDB_ENDPOINT,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
},
{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_GDB_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
},
};
static const struct {
struct usb_cdc_header_descriptor header;
struct usb_cdc_call_management_descriptor call_mgmt;
struct usb_cdc_acm_descriptor acm;
struct usb_cdc_union_descriptor cdc_union;
} __attribute__((packed)) gdb_cdcacm_functional_descriptors = {
.header =
{
.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
.bcdCDC = 0x0110,
},
.call_mgmt =
{
.bFunctionLength = sizeof(struct usb_cdc_call_management_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = GDB_IF_NO + 1,
},
.acm =
{
.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_ACM,
.bmCapabilities = 2, /* SET_LINE_CODING supported */
},
.cdc_union =
{
.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_UNION,
.bControlInterface = GDB_IF_NO,
.bSubordinateInterface0 = GDB_IF_NO + 1,
},
};
static const struct usb_interface_descriptor gdb_comm_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_CDC_PROTOCOL_NONE,
.iInterface = 4,
.endpoint = &gdb_comm_endp,
.extra = &gdb_cdcacm_functional_descriptors,
.extralen = sizeof(gdb_cdcacm_functional_descriptors),
};
static const struct usb_interface_descriptor gdb_data_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = GDB_IF_NO + 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_DATA,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = gdb_data_endp,
};
static const struct usb_iface_assoc_descriptor gdb_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = GDB_IF_NO,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_CDC_PROTOCOL_NONE,
.iFunction = 4,
};
/* Phyiscal/debug UART interface */
static const struct usb_endpoint_descriptor uart_comm_endp = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = (CDCACM_UART_ENDPOINT + 1) | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 16,
.bInterval = 255,
};
static const struct usb_endpoint_descriptor uart_data_endp[] = {
{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_UART_ENDPOINT,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE / 2,
.bInterval = 1,
},
{
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = CDCACM_UART_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = CDCACM_PACKET_SIZE,
.bInterval = 1,
},
};
static const struct {
struct usb_cdc_header_descriptor header;
struct usb_cdc_call_management_descriptor call_mgmt;
struct usb_cdc_acm_descriptor acm;
struct usb_cdc_union_descriptor cdc_union;
} __attribute__((packed)) uart_cdcacm_functional_descriptors = {
.header =
{
.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
.bcdCDC = 0x0110,
},
.call_mgmt =
{
.bFunctionLength = sizeof(struct usb_cdc_call_management_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = UART_IF_NO + 1,
},
.acm =
{
.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_ACM,
.bmCapabilities = 2, /* SET_LINE_CODING supported*/
},
.cdc_union =
{
.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
.bDescriptorType = CS_INTERFACE,
.bDescriptorSubtype = USB_CDC_TYPE_UNION,
.bControlInterface = UART_IF_NO,
.bSubordinateInterface0 = UART_IF_NO + 1,
},
};
static const struct usb_interface_descriptor uart_comm_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = UART_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_CDC_PROTOCOL_NONE,
.iInterface = 5,
.endpoint = &uart_comm_endp,
.extra = &uart_cdcacm_functional_descriptors,
.extralen = sizeof(uart_cdcacm_functional_descriptors),
};
static const struct usb_interface_descriptor uart_data_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = UART_IF_NO + 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_DATA,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = 0,
.endpoint = uart_data_endp,
};
static const struct usb_iface_assoc_descriptor uart_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = UART_IF_NO,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_CDC_PROTOCOL_NONE,
.iFunction = 5,
};
/* DFU interface */
const struct usb_dfu_descriptor dfu_function = {
.bLength = sizeof(struct usb_dfu_descriptor),
.bDescriptorType = DFU_FUNCTIONAL,
.bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH,
.wDetachTimeout = 255,
.wTransferSize = 1024,
.bcdDFUVersion = 0x011A,
};
const struct usb_interface_descriptor dfu_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = DFU_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 0,
.bInterfaceClass = 0xFE,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 1,
.iInterface = 6,
.extra = &dfu_function,
.extralen = sizeof(dfu_function),
};
static const struct usb_iface_assoc_descriptor dfu_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = DFU_IF_NO,
.bInterfaceCount = 1,
.bFunctionClass = 0xFE,
.bFunctionSubClass = 1,
.bFunctionProtocol = 1,
.iFunction = 6,
};
/* Trace/SWO interface */
#ifdef PLATFORM_HAS_TRACESWO
static const struct usb_endpoint_descriptor trace_endp = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = TRACE_ENDPOINT | USB_REQ_TYPE_IN,
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
.wMaxPacketSize = 64,
.bInterval = 0,
};
const struct usb_interface_descriptor trace_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = TRACE_IF_NO,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = 0xFF,
.bInterfaceSubClass = 0xFF,
.bInterfaceProtocol = 0xFF,
.iInterface = 7,
.endpoint = &trace_endp,
};
static const struct usb_iface_assoc_descriptor trace_assoc = {
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
.bFirstInterface = TRACE_IF_NO,
.bInterfaceCount = 1,
.bFunctionClass = 0xFF,
.bFunctionSubClass = 0xFF,
.bFunctionProtocol = 0xFF,
.iFunction = 7,
};
#endif
/* Interface and configuration descriptors */
static const struct usb_interface ifaces[] = {
{
.num_altsetting = 1,
.iface_assoc = &gdb_assoc,
.altsetting = &gdb_comm_iface,
},
{
.num_altsetting = 1,
.altsetting = &gdb_data_iface,
},
{
.num_altsetting = 1,
.iface_assoc = &uart_assoc,
.altsetting = &uart_comm_iface,
},
{
.num_altsetting = 1,
.altsetting = &uart_data_iface,
},
{
.num_altsetting = 1,
.iface_assoc = &dfu_assoc,
.altsetting = &dfu_iface,
},
#if defined(PLATFORM_HAS_TRACESWO)
{
.num_altsetting = 1,
.iface_assoc = &trace_assoc,
.altsetting = &trace_iface,
},
#endif
};
static const struct usb_config_descriptor config = {
.bLength = USB_DT_CONFIGURATION_SIZE,
.bDescriptorType = USB_DT_CONFIGURATION,
.wTotalLength = 0,
.bNumInterfaces = TOTAL_INTERFACES,
.bConfigurationValue = 1,
.iConfiguration = 0,
.bmAttributes = 0x80,
.bMaxPower = 0x32,
.interface = ifaces,
};
static const char *const usb_strings[] = {
"Black Magic Debug",
BOARD_IDENT,
serial_no,
"Black Magic GDB Server",
"Black Magic UART Port",
"Black Magic DFU",
#if defined(PLATFORM_HAS_TRACESWO)
"Black Magic Trace Capture",
#endif
};
#endif /*USB_DESCRIPTORS_H*/