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/*
* Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
* Copyright 2012 Jared Boone
* Copyright 2013 Benjamin Vernoux
*
* This file is part of HackRF.
*
* 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 2, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "usb_api_cpld.h"
#include <hackrf_core.h>
#include <cpld_jtag.h>
#include <cpld_xc2c.h>
#include <usb_queue.h>
#include "usb_endpoint.h"
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
uint8_t cpld_xsvf_buffer[512];
volatile bool cpld_wait = false;
static void cpld_buffer_refilled(void* user_data, unsigned int length)
{
(void) user_data;
(void) length;
cpld_wait = false;
}
static void refill_cpld_buffer(void)
{
cpld_wait = true;
usb_transfer_schedule(
&usb_endpoint_bulk_out,
cpld_xsvf_buffer,
sizeof(cpld_xsvf_buffer),
cpld_buffer_refilled,
NULL);
// Wait until transfer finishes
while (cpld_wait) {}
}
void cpld_update(void)
{
int error;
usb_queue_flush_endpoint(&usb_endpoint_bulk_in);
usb_queue_flush_endpoint(&usb_endpoint_bulk_out);
refill_cpld_buffer();
error = cpld_jtag_program(
&jtag_cpld,
sizeof(cpld_xsvf_buffer),
cpld_xsvf_buffer,
refill_cpld_buffer);
if (error == 0) {
halt_and_flash(6000000);
} else {
/* LED3 (Red) steady on error */
led_on(LED3);
while (1) {}
}
}
usb_request_status_t usb_vendor_request_cpld_checksum(
usb_endpoint_t* const endpoint,
const usb_transfer_stage_t stage)
{
static uint32_t cpld_crc;
uint8_t length;
if (stage == USB_TRANSFER_STAGE_SETUP) {
cpld_jtag_take(&jtag_cpld);
const bool checksum_success = cpld_xc2c64a_jtag_checksum(
&jtag_cpld,
&cpld_hackrf_verify,
&cpld_crc);
cpld_jtag_release(&jtag_cpld);
if (!checksum_success) {
return USB_REQUEST_STATUS_STALL;
}
length = (uint8_t) sizeof(cpld_crc);
memcpy(endpoint->buffer, &cpld_crc, length);
usb_transfer_schedule_block(
endpoint->in,
endpoint->buffer,
length,
NULL,
NULL);
usb_transfer_schedule_ack(endpoint->out);
}
return USB_REQUEST_STATUS_OK;
}
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