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/*
* Code generated from Atmel Start.
*
* This file will be overwritten when reconfiguring your Atmel Start project.
* Please copy examples or other code you want to keep to a separate file or main.c
* to avoid loosing it when reconfiguring.
*/
#include "atmel_start.h"
#include "usb_start.h"
#if CONF_USBD_HS_SP
static uint8_t single_desc_bytes[] = {
/* Device descriptors and Configuration descriptors list. */
CDCD_ACM_HS_DESCES_LS_FS};
static uint8_t single_desc_bytes_hs[] = {
/* Device descriptors and Configuration descriptors list. */
CDCD_ACM_HS_DESCES_HS};
#define CDCD_ECHO_BUF_SIZ CONF_USB_CDCD_ACM_DATA_BULKIN_MAXPKSZ_HS
#else
static uint8_t single_desc_bytes[] = {
/* Device descriptors and Configuration descriptors list. */
CDCD_ACM_DESCES_LS_FS};
#define CDCD_ECHO_BUF_SIZ CONF_USB_CDCD_ACM_DATA_BULKIN_MAXPKSZ
#endif
static struct usbd_descriptors single_desc[]
= {{single_desc_bytes, single_desc_bytes + sizeof(single_desc_bytes)}
#if CONF_USBD_HS_SP
,
{single_desc_bytes_hs, single_desc_bytes_hs + sizeof(single_desc_bytes_hs)}
#endif
};
/** Buffers to receive and echo the communication bytes. */
static uint32_t usbd_cdc_buffer[CDCD_ECHO_BUF_SIZ / 4];
/** Ctrl endpoint buffer */
static uint8_t ctrl_buffer[64];
/**
* \brief Callback invoked when bulk OUT data received
*/
static bool usb_device_cb_bulk_out(const uint8_t ep, const enum usb_xfer_code rc, const uint32_t count)
{
cdcdf_acm_write((uint8_t *)usbd_cdc_buffer, count);
/* No error. */
return false;
}
/**
* \brief Callback invoked when bulk IN data received
*/
static bool usb_device_cb_bulk_in(const uint8_t ep, const enum usb_xfer_code rc, const uint32_t count)
{
/* Echo data. */
cdcdf_acm_read((uint8_t *)usbd_cdc_buffer, sizeof(usbd_cdc_buffer));
/* No error. */
return false;
}
/**
* \brief Callback invoked when Line State Change
*/
static bool usb_device_cb_state_c(usb_cdc_control_signal_t state)
{
if (state.rs232.DTR) {
/* Callbacks must be registered after endpoint allocation */
cdcdf_acm_register_callback(CDCDF_ACM_CB_READ, (FUNC_PTR)usb_device_cb_bulk_out);
cdcdf_acm_register_callback(CDCDF_ACM_CB_WRITE, (FUNC_PTR)usb_device_cb_bulk_in);
/* Start Rx */
cdcdf_acm_read((uint8_t *)usbd_cdc_buffer, sizeof(usbd_cdc_buffer));
}
/* No error. */
return false;
}
/**
* \brief CDC ACM Init
*/
void cdc_device_acm_init(void)
{
/* usb stack init */
usbdc_init(ctrl_buffer);
/* usbdc_register_funcion inside */
cdcdf_acm_init();
usbdc_start(single_desc);
usbdc_attach();
}
/**
* \brief Start USB stack
*/
void usb_start(void)
{
while (!cdcdf_acm_is_enabled()) {
// wait cdc acm to be installed
};
cdcdf_acm_register_callback(CDCDF_ACM_CB_STATE_C, (FUNC_PTR)usb_device_cb_state_c);
}
void usb_init(void)
{
cdc_device_acm_init();
}
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