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fw: Add syscalls

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Adds:
- SYSCALL_RESET
- SYSCALL_SET_LED

Co-authored-by: Michael Cardell Widerkrantz <mc@tillitis.se>
This commit is contained in:
Mikael Ågren 2025-01-30 17:28:19 +01:00
parent 969df46315
commit d82c3a706e
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GPG key ID: E02DA3D397792C46
10 changed files with 283 additions and 9 deletions
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30
hw/application_fpga/fw/tk1/syscall_handler.c Normal file
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@ -0,0 +1,30 @@
/*
* Copyright (C) 2025 - Tillitis AB
* SPDX-License-Identifier: GPL-2.0-only
*/
#include "../tk1/assert.h"
#include "../tk1/led.h"
#include "../tk1/syscall_num.h"
#include "../tk1/types.h"
// clang-format off
static volatile uint32_t *system_reset = (volatile uint32_t *)TK1_MMIO_TK1_SYSTEM_RESET;
// clang-format on
int32_t syscall_handler(uint32_t number, uint32_t arg1)
{
switch (number) {
case TK1_SYSCALL_RESET:
*system_reset = 1;
return 0;
case TK1_SYSCALL_SET_LED:
set_led(arg1);
return 0;
default:
assert(1 == 2);
}
assert(1 == 2);
return -1; // This should never run
}