*
* 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.
+ * 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
void
ao_panic(uint8_t reason)
{
+ (void) reason;
}
void
-ao_put_string(__code char *s)
+ao_put_string(const char *s)
{
char c;
while ((c = *s++)) {
ao_flash_erase_page(p);
}
+static int
+ao_block_valid_address(uint32_t addr)
+{
+ if ((uint32_t) AO_BOOT_APPLICATION_BASE <= addr && addr <= (uint32_t) AO_BOOT_APPLICATION_BOUND - 256)
+ return 1;
+ return 0;
+}
+
static void
ao_block_write(void)
{
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();
+ if (!ao_block_valid_address(addr))
+ return;
ao_flash_page(p, (void *) data);
}
uint16_t i;
uint8_t c;
+ if (!ao_block_valid_address(addr)) {
+ for (i = 0; i < 256; i++)
+ ao_usb_putchar(0xff);
+ return;
+ }
for (i = 0; i < 256; i++) {
c = *p++;
ao_usb_putchar(c);
}
}
+static inline void
+hexchar(uint8_t c)
+{
+ if (c > 10)
+ c += 'a' - ('9' + 1);
+ ao_usb_putchar(c + '0');
+}
+
+static void
+ao_put_hex(uint32_t u)
+{
+ int8_t i;
+ for (i = 28; i >= 0; i -= 4)
+ hexchar((u >> i) & 0xf);
+}
+
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("\nflash-range ");
+ ao_put_hex((uint32_t) AO_BOOT_APPLICATION_BASE);
+ ao_usb_putchar(' ');
+ ao_put_hex((uint32_t) AO_BOOT_APPLICATION_BOUND);
ao_put_string("\nsoftware-version "); ao_put_string(ao_version);
ao_put_string("\n");
}