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boardloader: reorder calls so one can abort also by ejecting SD card

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This commit is contained in:
Pavol Rusnak 2017-10-14 12:56:39 +02:00
parent 8a707ce40d
commit 06fc509cbb
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 25 additions and 21 deletions
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46
embed/boardloader/main.c
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@ -13,10 +13,10 @@
#define IMAGE_MAGIC 0x425A5254 // TRZB
#define IMAGE_MAXSIZE (1 * 64 * 1024 + 7 * 128 * 1024)
bool check_sdcard(void)
static uint32_t check_sdcard(void)
{
if (!sdcard_is_present()) {
return false;
return 0;
}
sdcard_power_on();
@ -24,7 +24,7 @@ bool check_sdcard(void)
uint64_t cap = sdcard_get_capacity_in_bytes();
if (cap < 1024 * 1024) {
sdcard_power_off();
return false;
return 0;
}
uint32_t buf[SDCARD_BLOCK_SIZE / sizeof(uint32_t)];
@ -33,14 +33,20 @@ bool check_sdcard(void)
sdcard_power_off();
return image_parse_header((const uint8_t *)buf, IMAGE_MAGIC, IMAGE_MAXSIZE, NULL);
image_header hdr;
if (image_parse_header((const uint8_t *)buf, IMAGE_MAGIC, IMAGE_MAXSIZE, &hdr)) {
return hdr.codelen;
} else {
return 0;
}
}
static void progress_callback(uint16_t val) {
display_printf(".");
}
bool copy_sdcard(void)
static bool copy_sdcard(void)
{
display_backlight(255);
@ -56,6 +62,13 @@ bool copy_sdcard(void)
hal_delay(1000);
}
uint32_t codelen = check_sdcard();
if (!codelen) {
display_printf("no SD card, aborting\n");
return false;
}
display_printf("\n\nerasing flash:\n");
// erase flash (except boardloader)
@ -65,27 +78,18 @@ bool copy_sdcard(void)
}
display_printf(" done\n\n");
display_printf("copying new bootloader from SD card\n\n");
sdcard_power_on();
// copy bootloader from SD card to Flash
uint32_t buf[SDCARD_BLOCK_SIZE / sizeof(uint32_t)];
sdcard_read_blocks((uint8_t *)buf, 0, 1);
image_header hdr;
if (!image_parse_header((const uint8_t *)buf, IMAGE_MAGIC, IMAGE_MAXSIZE, &hdr)) {
display_printf("invalid header\n");
sdcard_power_off();
return false;
}
if (!flash_unlock()) {
display_printf("could not unlock flash\n");
return false;
}
for (int i = 0; i < (HEADER_SIZE + hdr.codelen) / SDCARD_BLOCK_SIZE; i++) {
// copy bootloader from SD card to Flash
display_printf("copying new bootloader from SD card\n\n");
sdcard_power_on();
uint32_t buf[SDCARD_BLOCK_SIZE / sizeof(uint32_t)];
for (int i = 0; i < (HEADER_SIZE + codelen) / SDCARD_BLOCK_SIZE; i++) {
sdcard_read_blocks((uint8_t *)buf, i, 1);
for (int j = 0; j < SDCARD_BLOCK_SIZE / sizeof(uint32_t); j++) {
if (!flash_write_word(BOOTLOADER_START + i * SDCARD_BLOCK_SIZE + j * sizeof(uint32_t), buf[j])) {