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/*
* 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 <usb_queue.h>
#include "usb_endpoint.h"
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
volatile bool start_cpld_update = false;
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)
{
#define WAIT_LOOP_DELAY (6000000)
int i;
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)
{
/* blink LED1, LED2, and LED3 on success */
while (1)
{
led_on(LED1);
led_on(LED2);
led_on(LED3);
for (i = 0; i < WAIT_LOOP_DELAY; i++) /* Wait a bit. */
__asm__("nop");
led_off(LED1);
led_off(LED2);
led_off(LED3);
for (i = 0; i < WAIT_LOOP_DELAY; i++) /* Wait a bit. */
__asm__("nop");
}
}else
{
/* LED3 (Red) steady on error */
led_on(LED3);
while (1);
}
}
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