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#include "project.h"
/* Define this to include the DFU APP interface. */
const struct usb_device_descriptor dev = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0,
.bDeviceSubClass = 0,
.bDeviceProtocol = 0,
.bMaxPacketSize0 = 64,
.idVendor = 0x1d6b,
.idProduct = 0xcad5,
.bcdDevice = 0x0200,
.iManufacturer = 1,
.iProduct = 2,
.iSerialNumber = 3,
.bNumConfigurations = 1,
};
const struct usb_interface ifaces[] = {
{
.num_altsetting = 1,
.altsetting = comm_iface,
},
{
.num_altsetting = 1,
.altsetting = data_iface,
},
{
.num_altsetting = 1,
.altsetting = &dfu_iface,
},
};
const struct usb_config_descriptor config = {
.bLength = USB_DT_CONFIGURATION_SIZE,
.bDescriptorType = USB_DT_CONFIGURATION,
.wTotalLength = 0,
.bNumInterfaces = 3,
.bConfigurationValue = 1,
.iConfiguration = 4,
.bmAttributes = 0xa0,
.bMaxPower = 0x31,
.interface = ifaces,
};
static const char *usb_strings[] = {
"candlestick",
"candlestick",
"candlestick",
"composite",
"usb serial 0",
"usb serial 1",
"candlestick dfu device",
};
usbd_device *usbd_dev;
int usb_is_suspended = 0;
int usb_running = 0;
static int time_since_sof;
void
usb_tick (void)
{
time_since_sof++;
if (time_since_sof > 3000)
usb_running = 0;
}
static void
usb_sof (void)
{
usb_running = 1;
time_since_sof = 0;
}
static void
usb_suspended (void)
{
*USB_CNTR_REG |= USB_CNTR_FSUSP;
usb_is_suspended = 1;
}
static void
usb_resumed (void)
{
*USB_CNTR_REG &= ~USB_CNTR_FSUSP;
usb_is_suspended = 0;
}
int
usb_wakeup_host (void)
{
if (!usb_is_suspended)
return 1;
*USB_CNTR_REG |= USB_CNTR_RESUME;
delay_us (1000);
delay_us (1000);
delay_us (1000);
delay_us (1000);
delay_us (1000);
*USB_CNTR_REG &= ~USB_CNTR_RESUME;
return 0;
}
static int
usb_control_request (usbd_device * usbd_dev, struct usb_setup_data *req,
uint8_t ** buf, uint16_t * len,
int (**complete) (usbd_device * usbd_dev,
struct usb_setup_data * req))
{
(void) complete;
(void) usbd_dev;
(void) buf;
(void) len;
if ((req->bmRequestType !=
(USB_REQ_TYPE_IN | USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE))
|| (req->bRequest != USB_REQ_GET_DESCRIPTOR) || (req->wValue != 0x2200))
return 0;
*len = 0;
return 0;
}
int
class_control_request (usbd_device * usbd_dev, struct usb_setup_data *req,
uint8_t ** buf, uint16_t * len,
int (**complete) (usbd_device * usbd_dev,
struct usb_setup_data * req))
{
if (cdcacm_control_request (usbd_dev, req, buf, len, complete))
return 1;
if (dfu_control_request (usbd_dev, req, buf, len, complete))
return 1;
return 0;
}
void
usb_set_config (usbd_device * usbd_dev, uint16_t wValue)
{
(void) wValue;
(void) usbd_dev;
usbd_ep_setup (usbd_dev, 0x01, USB_ENDPOINT_ATTR_BULK, 64,
cdcacm_data_rx_cb);
usbd_ep_setup (usbd_dev, 0x82, USB_ENDPOINT_ATTR_BULK, 64, NULL);
usbd_ep_setup (usbd_dev, 0x83, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
usbd_register_control_callback (usbd_dev,
USB_REQ_TYPE_STANDARD |
USB_REQ_TYPE_INTERFACE,
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
usb_control_request);
usbd_register_control_callback (usbd_dev,
USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE,
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
class_control_request);
}
/* Buffer to be used for control requests. */
uint8_t usbd_control_buffer[128];
void
usb_init (void)
{
usbd_dev =
usbd_init (&stm32f103_usb_driver, &dev, &config, usb_strings, 8,
usbd_control_buffer, sizeof (usbd_control_buffer));
usbd_register_set_config_callback (usbd_dev, usb_set_config);
usbd_register_suspend_callback (usbd_dev, usb_suspended);
usbd_register_resume_callback (usbd_dev, usb_resumed);
usbd_register_sof_callback (usbd_dev, usb_sof);
}
void
usb_run (void)
{
for (;;)
{
usbd_poll (usbd_dev);
serial_poll ();
}
}
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