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// io-hub - Modular Input/Output. {{{
//
// Copyright (C) 2013 Nicolas Schodet
//
// APBTeam:
//        Web: http://apbteam.org/
//      Email: team AT apbteam DOT org
//
// 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 of the License, 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; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// }}}
#include "ucoolib/hal/uart/uart.hh"
#include "ucoolib/arch/arch.hh"
#include "ucoolib/common.hh"

#include <libopencm3/stm32/f4/rcc.h>
#include "ucoolib/hal/gpio/gpio.hh"

#include "ucoolib/dev/xmodem/xmodem.hh"
#include "ucoolib/utils/delay.hh"

#include "self_programming.hh"

class BootloaderReceiver : public ucoo::XmodemReceiver
{
    uint32_t addr_;
public:
    BootloaderReceiver (uint32_t addr) : addr_ (addr) { }
    int write (const char *buf, int count)
    {
        self_programming_write (addr_, buf, count);
        addr_ += count;
        return count;
    }
};

int
main (int argc, const char **argv)
{
    ucoo::arch_init (argc, argv);
    // D8, D9: UART3
    // C12, D2: UART5
    rcc_peripheral_enable_clock (&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN);
    rcc_peripheral_enable_clock (&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN);
    gpio_mode_setup (GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO12);
    gpio_mode_setup (GPIOD, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2 | GPIO8 | GPIO9);
    gpio_set_af (GPIOC, GPIO_AF8, GPIO12);
    gpio_set_af (GPIOD, GPIO_AF8, GPIO2);
    gpio_set_af (GPIOD, GPIO_AF7, GPIO8 | GPIO9);
    ucoo::Uart u0 (2), u1 (4);
    u0.enable (38400, ucoo::Uart::EVEN, 1);
    u1.enable (38400, ucoo::Uart::EVEN, 1);
    ucoo::Uart *u[] = { &u0, &u1 };
    const char welcome[] = "Press enter to start Xmodem receiver\n";
    int i;
    for (i = 0; i < (int) lengthof (u); i++)
      {
	u[i]->write (welcome, sizeof (welcome) - 1);
	u[i]->block (false);
      }
    for (i = 0; ; i = (i + 1) % lengthof (u))
      {
	int c = u[i]->getc ();
	if (c == '\n')
	    break;
      }
    BootloaderReceiver receiver (0x8000000);
    ucoo::xmodem_receive (*u[i], receiver);
    ucoo::delay (1);
    ucoo::arch_reset ();
}