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New: src/mcu-stm32f103.c.

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Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka
2017-04-28 15:49:38 +09:00
parent 9e52789203
commit 86eaa26d32
6 changed files with 60 additions and 23 deletions
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23
src/usb_ctrl.c
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@@ -38,7 +38,6 @@
#include "usb_lld.h"
#include "usb_conf.h"
#include "gnuk.h"
#include "mcu/stm32f103.h"
#ifdef ENABLE_VIRTUAL_COM_PORT
#include "usb-cdc.h"
@@ -209,27 +208,11 @@ static const uint8_t *const mem_info[] = { &_regnual_start, __heap_end__, };
#define USB_FSIJ_GNUK_EXEC 2
#define USB_FSIJ_GNUK_CARD_CHANGE 3
static uint32_t rbit (uint32_t v)
{
uint32_t r;
asm ("rbit %0, %1" : "=r" (r) : "r" (v));
return r;
}
/* After calling this function, CRC module remain enabled. */
static int download_check_crc32 (struct usb_dev *dev, const uint32_t *end_p)
static int
download_check_crc32 (struct usb_dev *dev, const uint32_t *end_p)
{
uint32_t crc32 = *end_p;
const uint32_t *p;
RCC->AHBENR |= RCC_AHBENR_CRCEN;
CRC->CR = CRC_CR_RESET;
for (p = (const uint32_t *)&_regnual_start; p < end_p; p++)
CRC->DR = rbit (*p);
if ((rbit (CRC->DR) ^ crc32) == 0xffffffff)
if (check_crc32 ((const uint32_t *)&_regnual_start, end_p))
return usb_lld_ctrl_ack (dev);
return -1;