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/*
* Copyright © 2013 Keith Packard <keithp@keithp.com>
*
* 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; version 2 of the License.
*
* 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 "ao.h"
#include <ao_exti.h>
#include <ao_boot.h>
#include <ao_flash.h>
#include <ao_flash_task.h>
void
ao_panic(uint8_t reason)
{
(void) reason;
}
void
ao_put_string(__code char *s)
{
char c;
while ((c = *s++)) {
if (c == '\n')
ao_usb_putchar('\r');
ao_usb_putchar(c);
}
}
static void
ao_application(void)
{
ao_boot_reboot(AO_BOOT_APPLICATION_BASE);
}
static uint32_t
ao_get_hex32(void)
{
int8_t n;
uint32_t v = 0;
for (;;) {
n = ao_usb_getchar();
if (n != ' ')
break;
}
for(;;) {
if ('0' <= n && n <= '9')
n = n - '0';
else if ('a' <= n && n <= 'f')
n = n - ('a' - 10);
else if ('A' <= n && n <= 'F')
n = n - ('A' - 10);
else
break;
v = (v << 4) | n;
n = ao_usb_getchar();
}
return v;
}
static void
ao_block_erase(void)
{
uint32_t addr = ao_get_hex32();
void *p = (void *) addr;
ao_flash_erase_page(p);
}
static void
ao_block_write(void)
{
uint32_t addr = ao_get_hex32();
void *p = (void *) addr;
uint8_t data[256];
uint16_t i;
if (addr < (uint32_t) AO_BOOT_APPLICATION_BASE) {
ao_put_string("Invalid address\n");
return;
}
for (i = 0; i < 256; i++)
data[i] = ao_usb_getchar();
ao_flash_page(p, (void *) data);
}
static void
ao_block_read(void)
{
uint32_t addr = ao_get_hex32();
uint8_t *p = (uint8_t *) addr;
uint16_t i;
uint8_t c;
for (i = 0; i < 256; i++) {
c = *p++;
ao_usb_putchar(c);
}
}
static void
ao_show_version(void)
{
ao_put_string("altos-loader");
ao_put_string("\nmanufacturer "); ao_put_string(ao_manufacturer);
ao_put_string("\nproduct "); ao_put_string(ao_product);
ao_put_string("\nsoftware-version "); ao_put_string(ao_version);
ao_put_string("\n");
}
void
ao_flash_task(void) {
for (;;) {
ao_usb_flush();
switch (ao_usb_getchar()) {
case 'v': ao_show_version(); break;
case 'a': ao_application(); break;
case 'X': ao_block_erase(); break;
case 'W': ao_block_write(); break;
case 'R': ao_block_read(); break;
}
}
}
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