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Fixed potential crash.

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board_button_read() disables interrupts and cannot be parallelized when flash is being used. It is imperative that core1 must not use flash during the board_button_read(). Since it is not feasible to put mutexes in *every* flash memory read/write in core1, it is preferable to wait until core1 finishes command execution.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos 2023-10-31 00:40:38 +01:00
parent 4f0925420b
commit 3182d1e2e6
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GPG key ID: C0095B7870A4CCD3
3 changed files with 3 additions and 3 deletions
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2
src/apdu.c
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@ -204,7 +204,7 @@ done: ;
void apdu_finish() {
apdu.rdata[apdu.rlen] = apdu.sw >> 8;
apdu.rdata[apdu.rlen + 1] = apdu.sw & 0xff;
timeout_stop();
//timeout_stop();
#ifndef ENABLE_EMULATION
if ((apdu.rlen + 2 + 10) % 64 == 0) { // FIX for strange behaviour with PSCS and multiple of 64
apdu.ne = apdu.rlen - 2;

2
src/main.c
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@ -323,7 +323,7 @@ int main(void) {
neug_task();
do_flash();
#ifndef ENABLE_EMULATION
if (board_millis() > 1000 && !is_busy()) { // wait 1 second to boot up
if (board_millis() > 5000 && !is_busy()) { // wait 5 second to boot up
bool current_button_state = board_button_read();
if (current_button_state != button_pressed_state) {
if (current_button_state == false) { // unpressed

2
src/usb/usb.c
View file

@ -280,7 +280,6 @@ void usb_task() {
// printf("\r\n ------ M = %lu\r\n",m);
if (has_m) {
if (m == EV_EXEC_FINISHED) {
timeout_stop();
#ifdef USB_ITF_HID
if (itf == ITF_HID) {
driver_exec_finished_hid(finished_data_size);
@ -293,6 +292,7 @@ void usb_task() {
#endif
led_set_blink(BLINK_MOUNTED);
card_locked_itf = ITF_TOTAL;
timeout_stop();
}
else if (m == EV_PRESS_BUTTON) {
uint32_t flag = wait_button() ? EV_BUTTON_TIMEOUT : EV_BUTTON_PRESSED;