Move (now-constant) cdcacm.c to platforms/stm32
This commit is contained in:
Uwe Bonnes
parent
04415582bd
commit
30d8aa1eb7
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@ -1,579 +0,0 @@
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/*
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* This file is part of the Black Magic Debug project.
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*
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* Copyright (C) 2011 Black Sphere Technologies Ltd.
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* Written by Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* This file implements a the USB Communications Device Class - Abstract
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* Control Model (CDC-ACM) as defined in CDC PSTN subclass 1.2.
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* A Device Firmware Upgrade (DFU 1.1) class interface is provided for
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* field firmware upgrade.
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*
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* The device's unique id is used as the USB serial number string.
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*/
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#include <libopencm3/stm32/f1/rcc.h>
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#include <libopencm3/cm3/nvic.h>
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#include <libopencm3/stm32/f1/gpio.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/cdc.h>
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#include <libopencm3/cm3/scb.h>
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#include <libopencm3/usb/dfu.h>
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#include <stdlib.h>
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#include "platform.h"
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#if defined(PLATFORM_HAS_TRACESWO)
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#include "traceswo.h"
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#endif
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#include <usbuart.h>
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#define DFU_IF_NO 4
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usbd_device * usbdev;
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static char *get_dev_unique_id(char *serial_no);
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static int configured;
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static int cdcacm_gdb_dtr = 1;
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static const struct usb_device_descriptor dev = {
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.bLength = USB_DT_DEVICE_SIZE,
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = 0xEF, /* Miscellaneous Device */
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.bDeviceSubClass = 2, /* Common Class */
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.bDeviceProtocol = 1, /* Interface Association */
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.bMaxPacketSize0 = 64,
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.idVendor = 0x1D50,
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.idProduct = 0x6018,
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.bcdDevice = 0x0100,
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.iManufacturer = 1,
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.iProduct = 2,
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.iSerialNumber = 3,
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.bNumConfigurations = 1,
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};
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/* This notification endpoint isn't implemented. According to CDC spec its
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* optional, but its absence causes a NULL pointer dereference in Linux cdc_acm
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* driver. */
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static const struct usb_endpoint_descriptor gdb_comm_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x82,
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.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
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.wMaxPacketSize = 16,
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.bInterval = 255,
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}};
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static const struct usb_endpoint_descriptor gdb_data_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x01,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}, {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x81,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}};
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static const struct {
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struct usb_cdc_header_descriptor header;
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struct usb_cdc_call_management_descriptor call_mgmt;
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struct usb_cdc_acm_descriptor acm;
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struct usb_cdc_union_descriptor cdc_union;
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} __attribute__((packed)) gdb_cdcacm_functional_descriptors = {
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.header = {
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.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
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.bcdCDC = 0x0110,
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},
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.call_mgmt = {
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.bFunctionLength =
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sizeof(struct usb_cdc_call_management_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
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.bmCapabilities = 0,
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.bDataInterface = 1,
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},
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.acm = {
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.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_ACM,
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.bmCapabilities = 2, /* SET_LINE_CODING supported */
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},
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.cdc_union = {
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.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_UNION,
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.bControlInterface = 0,
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.bSubordinateInterface0 = 1,
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}
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};
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static const struct usb_interface_descriptor gdb_comm_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_CDC,
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.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
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.bInterfaceProtocol = USB_CDC_PROTOCOL_AT,
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.iInterface = 4,
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.endpoint = gdb_comm_endp,
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.extra = &gdb_cdcacm_functional_descriptors,
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.extralen = sizeof(gdb_cdcacm_functional_descriptors)
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}};
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static const struct usb_interface_descriptor gdb_data_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 1,
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.bAlternateSetting = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = USB_CLASS_DATA,
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.bInterfaceSubClass = 0,
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.bInterfaceProtocol = 0,
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.iInterface = 0,
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.endpoint = gdb_data_endp,
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}};
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static const struct usb_iface_assoc_descriptor gdb_assoc = {
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.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
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.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
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.bFirstInterface = 0,
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.bInterfaceCount = 2,
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.bFunctionClass = USB_CLASS_CDC,
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.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
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.bFunctionProtocol = USB_CDC_PROTOCOL_AT,
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.iFunction = 0,
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};
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/* Serial ACM interface */
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static const struct usb_endpoint_descriptor uart_comm_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x84,
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.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
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.wMaxPacketSize = 16,
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.bInterval = 255,
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}};
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static const struct usb_endpoint_descriptor uart_data_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x03,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}, {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x83,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}};
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static const struct {
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struct usb_cdc_header_descriptor header;
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struct usb_cdc_call_management_descriptor call_mgmt;
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struct usb_cdc_acm_descriptor acm;
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struct usb_cdc_union_descriptor cdc_union;
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} __attribute__((packed)) uart_cdcacm_functional_descriptors = {
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.header = {
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.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
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.bcdCDC = 0x0110,
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},
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.call_mgmt = {
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.bFunctionLength =
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sizeof(struct usb_cdc_call_management_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
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.bmCapabilities = 0,
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.bDataInterface = 3,
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},
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.acm = {
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.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_ACM,
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.bmCapabilities = 2, /* SET_LINE_CODING supported*/
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},
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.cdc_union = {
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.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_UNION,
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.bControlInterface = 2,
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.bSubordinateInterface0 = 3,
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}
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};
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static const struct usb_interface_descriptor uart_comm_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 2,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_CDC,
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.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
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.bInterfaceProtocol = USB_CDC_PROTOCOL_AT,
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.iInterface = 5,
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.endpoint = uart_comm_endp,
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.extra = &uart_cdcacm_functional_descriptors,
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.extralen = sizeof(uart_cdcacm_functional_descriptors)
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}};
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static const struct usb_interface_descriptor uart_data_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 3,
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.bAlternateSetting = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = USB_CLASS_DATA,
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.bInterfaceSubClass = 0,
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.bInterfaceProtocol = 0,
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.iInterface = 0,
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.endpoint = uart_data_endp,
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}};
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static const struct usb_iface_assoc_descriptor uart_assoc = {
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.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
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.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
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.bFirstInterface = 2,
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.bInterfaceCount = 2,
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.bFunctionClass = USB_CLASS_CDC,
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.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
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.bFunctionProtocol = USB_CDC_PROTOCOL_AT,
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.iFunction = 0,
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};
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const struct usb_dfu_descriptor dfu_function = {
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.bLength = sizeof(struct usb_dfu_descriptor),
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.bDescriptorType = DFU_FUNCTIONAL,
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.bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH,
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.wDetachTimeout = 255,
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.wTransferSize = 1024,
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.bcdDFUVersion = 0x011A,
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};
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const struct usb_interface_descriptor dfu_iface = {
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = DFU_IF_NO,
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.bAlternateSetting = 0,
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.bNumEndpoints = 0,
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.bInterfaceClass = 0xFE,
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.bInterfaceSubClass = 1,
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.bInterfaceProtocol = 1,
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.iInterface = 6,
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.extra = &dfu_function,
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.extralen = sizeof(dfu_function),
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};
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static const struct usb_iface_assoc_descriptor dfu_assoc = {
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.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
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.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
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.bFirstInterface = 4,
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.bInterfaceCount = 1,
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.bFunctionClass = 0xFE,
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.bFunctionSubClass = 1,
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.bFunctionProtocol = 1,
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.iFunction = 6,
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};
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#if defined(PLATFORM_HAS_TRACESWO)
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static const struct usb_endpoint_descriptor trace_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x85,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = 64,
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.bInterval = 0,
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}};
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const struct usb_interface_descriptor trace_iface = {
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 5,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = 0xFF,
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.bInterfaceSubClass = 0xFF,
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.bInterfaceProtocol = 0xFF,
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.iInterface = 7,
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.endpoint = trace_endp,
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};
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static const struct usb_iface_assoc_descriptor trace_assoc = {
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.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
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.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
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.bFirstInterface = 5,
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.bInterfaceCount = 1,
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.bFunctionClass = 0xFF,
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.bFunctionSubClass = 0xFF,
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.bFunctionProtocol = 0xFF,
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.iFunction = 7,
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};
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#endif
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static const struct usb_interface ifaces[] = {{
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.num_altsetting = 1,
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.iface_assoc = &gdb_assoc,
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.altsetting = gdb_comm_iface,
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}, {
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.num_altsetting = 1,
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.altsetting = gdb_data_iface,
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}, {
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.num_altsetting = 1,
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.iface_assoc = &uart_assoc,
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.altsetting = uart_comm_iface,
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}, {
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.num_altsetting = 1,
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.altsetting = uart_data_iface,
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}, {
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.num_altsetting = 1,
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.iface_assoc = &dfu_assoc,
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.altsetting = &dfu_iface,
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#if defined(PLATFORM_HAS_TRACESWO)
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}, {
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.num_altsetting = 1,
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.iface_assoc = &trace_assoc,
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.altsetting = &trace_iface,
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#endif
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}};
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static const struct usb_config_descriptor config = {
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.bLength = USB_DT_CONFIGURATION_SIZE,
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.bDescriptorType = USB_DT_CONFIGURATION,
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.wTotalLength = 0,
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#if defined(PLATFORM_HAS_TRACESWO)
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.bNumInterfaces = 6,
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#else
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.bNumInterfaces = 5,
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#endif
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.bConfigurationValue = 1,
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.iConfiguration = 0,
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.bmAttributes = 0x80,
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.bMaxPower = 0x32,
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.interface = ifaces,
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};
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char serial_no[9];
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static const char *usb_strings[] = {
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"Black Sphere Technologies",
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"Black Magic Probe",
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serial_no,
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"Black Magic GDB Server",
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"Black Magic UART Port",
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"Black Magic Firmware Upgrade",
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#if defined(PLATFORM_HAS_TRACESWO)
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"Black Magic Trace Capture",
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#endif
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};
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static void dfu_detach_complete(usbd_device *dev, struct usb_setup_data *req)
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{
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(void)dev;
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(void)req;
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/* Disconnect USB cable */
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disconnect_usb();
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/* Assert boot-request pin */
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assert_boot_pin();
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/* Reset core to enter bootloader */
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scb_reset_core();
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}
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static int cdcacm_control_request(usbd_device *dev,
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struct usb_setup_data *req, uint8_t **buf, uint16_t *len,
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void (**complete)(usbd_device *dev, struct usb_setup_data *req))
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{
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(void)dev;
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(void)complete;
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(void)buf;
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(void)len;
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switch(req->bRequest) {
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case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
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/* Ignore if not for GDB interface */
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if(req->wIndex != 0)
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return 1;
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cdcacm_gdb_dtr = req->wValue & 1;
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return 1;
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case USB_CDC_REQ_SET_LINE_CODING:
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if(*len < sizeof(struct usb_cdc_line_coding))
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return 0;
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switch(req->wIndex) {
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case 2:
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usbuart_set_line_coding((struct usb_cdc_line_coding*)*buf);
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case 0:
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return 1; /* Ignore on GDB Port */
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default:
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return 0;
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}
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case DFU_GETSTATUS:
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if(req->wIndex == DFU_IF_NO) {
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(*buf)[0] = DFU_STATUS_OK;
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(*buf)[1] = 0;
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(*buf)[2] = 0;
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(*buf)[3] = 0;
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(*buf)[4] = STATE_APP_IDLE;
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(*buf)[5] = 0; /* iString not used here */
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*len = 6;
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return 1;
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}
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case DFU_DETACH:
|
||||
if(req->wIndex == DFU_IF_NO) {
|
||||
*complete = dfu_detach_complete;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cdcacm_get_config(void)
|
||||
{
|
||||
return configured;
|
||||
}
|
||||
|
||||
int cdcacm_get_dtr(void)
|
||||
{
|
||||
return cdcacm_gdb_dtr;
|
||||
}
|
||||
|
||||
static void cdcacm_set_config(usbd_device *dev, u16 wValue)
|
||||
{
|
||||
configured = wValue;
|
||||
|
||||
/* GDB interface */
|
||||
usbd_ep_setup(dev, 0x01, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, NULL);
|
||||
usbd_ep_setup(dev, 0x81, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, NULL);
|
||||
usbd_ep_setup(dev, 0x82, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
|
||||
|
||||
/* Serial interface */
|
||||
usbd_ep_setup(dev, 0x03, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, usbuart_usb_out_cb);
|
||||
usbd_ep_setup(dev, 0x83, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, usbuart_usb_in_cb);
|
||||
usbd_ep_setup(dev, 0x84, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
|
||||
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
/* Trace interface */
|
||||
usbd_ep_setup(dev, 0x85, USB_ENDPOINT_ATTR_BULK,
|
||||
64, trace_buf_drain);
|
||||
#endif
|
||||
|
||||
usbd_register_control_callback(dev,
|
||||
USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE,
|
||||
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
|
||||
cdcacm_control_request);
|
||||
|
||||
/* Notify the host that DCD is asserted.
|
||||
* Allows the use of /dev/tty* devices on *BSD/MacOS
|
||||
*/
|
||||
char buf[10];
|
||||
struct usb_cdc_notification *notif = (void*)buf;
|
||||
/* We echo signals back to host as notification */
|
||||
notif->bmRequestType = 0xA1;
|
||||
notif->bNotification = USB_CDC_NOTIFY_SERIAL_STATE;
|
||||
notif->wValue = 0;
|
||||
notif->wIndex = 0;
|
||||
notif->wLength = 2;
|
||||
buf[8] = 3; /* DCD | DSR */
|
||||
buf[9] = 0;
|
||||
usbd_ep_write_packet(dev, 0x82, buf, 10);
|
||||
notif->wIndex = 2;
|
||||
usbd_ep_write_packet(dev, 0x84, buf, 10);
|
||||
}
|
||||
|
||||
/* We need a special large control buffer for this device: */
|
||||
uint8_t usbd_control_buffer[256];
|
||||
|
||||
void cdcacm_init(void)
|
||||
{
|
||||
void exti15_10_isr(void);
|
||||
|
||||
get_dev_unique_id(serial_no);
|
||||
|
||||
usbdev = usbd_init(&stm32f103_usb_driver,
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
&dev, &config, usb_strings, 6
|
||||
#else
|
||||
&dev, &config, usb_strings, 7
|
||||
#endif
|
||||
);
|
||||
usbd_set_control_buffer_size(usbdev, sizeof(usbd_control_buffer));
|
||||
usbd_register_set_config_callback(usbdev, cdcacm_set_config);
|
||||
|
||||
nvic_set_priority(USB_IRQ, IRQ_PRI_USB);
|
||||
nvic_enable_irq(USB_IRQ);
|
||||
setup_vbus_irq();
|
||||
}
|
||||
|
||||
void usb_lp_can_rx0_isr(void)
|
||||
{
|
||||
usbd_poll(usbdev);
|
||||
}
|
||||
|
||||
static char *get_dev_unique_id(char *s)
|
||||
{
|
||||
volatile uint32_t *unique_id_p = (volatile uint32_t *)0x1FFFF7E8;
|
||||
uint32_t unique_id = *unique_id_p +
|
||||
*(unique_id_p + 1) +
|
||||
*(unique_id_p + 2);
|
||||
int i;
|
||||
|
||||
/* Fetch serial number from chip's unique ID */
|
||||
for(i = 0; i < 8; i++) {
|
||||
s[7-i] = ((unique_id >> (4*i)) & 0xF) + '0';
|
||||
}
|
||||
for(i = 0; i < 8; i++)
|
||||
if(s[i] > '9')
|
||||
s[i] += 'A' - '9' - 1;
|
||||
s[8] = 0;
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
|
|
@ -570,4 +570,3 @@ static char *get_dev_unique_id(char *s)
|
|||
|
||||
return s;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue