976720c355
Be specifically careful with the usb examples. There is likely some breakage to be expected, not sure I updated all the drivers to the correct types for the respective chips.
128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2013 Weston Schmidt <weston_schmidt@alumni.purdue.edu>
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* Copyright (C) 2013 Pavol Rusnak <stick@gk2.sk>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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 library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/msc.h>
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#include "ramdisk.h"
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static const struct usb_device_descriptor dev_descr = {
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.bLength = USB_DT_DEVICE_SIZE,
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = 0x0110,
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.bDeviceClass = 0,
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.bDeviceSubClass = 0,
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.bDeviceProtocol = 0,
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.bMaxPacketSize0 = 64,
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.idVendor = 0x0483,
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.idProduct = 0x5741,
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.bcdDevice = 0x0200,
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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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static const struct usb_endpoint_descriptor msc_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 = 64,
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.bInterval = 0,
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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 = 0x82,
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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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static const struct usb_interface_descriptor msc_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 = 2,
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.bInterfaceClass = USB_CLASS_MSC,
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.bInterfaceSubClass = USB_MSC_SUBCLASS_SCSI,
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.bInterfaceProtocol = USB_MSC_PROTOCOL_BBB,
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.iInterface = 0,
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.endpoint = msc_endp,
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.extra = NULL,
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.extralen = 0
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}};
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static const struct usb_interface ifaces[] = {{
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.num_altsetting = 1,
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.altsetting = msc_iface,
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}};
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static const struct usb_config_descriptor config_descr = {
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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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.bNumInterfaces = 1,
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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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static const char *usb_strings[] = {
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"Black Sphere Technologies",
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"MSC Demo",
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"DEMO",
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};
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static usbd_device *msc_dev;
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/* Buffer to be used for control requests. */
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static uint8_t usbd_control_buffer[128];
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int main(void)
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{
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rcc_clock_setup_hse_3v3(&rcc_hse_8mhz_3v3[RCC_CLOCK_3V3_120MHZ]);
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rcc_periph_clock_enable(RCC_GPIOA);
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rcc_periph_clock_enable(RCC_OTGFS);
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gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE,
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GPIO9 | GPIO11 | GPIO12);
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gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO11 | GPIO12);
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msc_dev = usbd_init(&otgfs_usb_driver, &dev_descr, &config_descr,
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usb_strings, 3,
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usbd_control_buffer, sizeof(usbd_control_buffer));
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ramdisk_init();
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usb_msc_init(msc_dev, 0x82, 64, 0x01, 64, "VendorID", "ProductID",
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"0.00", ramdisk_blocks(), ramdisk_read, ramdisk_write);
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for (;;) {
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usbd_poll(msc_dev);
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}
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}
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