mirror of
https://github.com/isometimes/rpi4-osdev
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61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
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#include "kernel.h"
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// textdefinitionmap of invalid error-types
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const char entry_error_messages[16][32] = {
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"SYNC_INVALID_EL1t",
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"IRQ_INVALID_EL1t",
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"FIQ_INVALID_EL1t",
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"ERROR_INVALID_EL1T",
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"SYNC_INVALID_EL1h",
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"IRQ_INVALID_EL1h",
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"FIQ_INVALID_EL1h",
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"ERROR_INVALID_EL1h",
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"SYNC_INVALID_EL0_64",
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"IRQ_INVALID_EL0_64",
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"FIQ_INVALID_EL0_64",
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"ERROR_INVALID_EL0_64",
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"SYNC_INVALID_EL0_32",
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"IRQ_INVALID_EL0_32",
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"FIQ_INVALID_EL0_32",
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"ERROR_INVALID_EL0_32"
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};
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void show_invalid_entry_message(unsigned int type, unsigned long esr, unsigned long address) {
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debugstr("ERROR CAUGHT: %s - %d, ESR: %X, Address: %X\n",
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entry_error_messages[type], type, esr, address);
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}
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void enable_interrupt_controller() {
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REGS_IRQ->irq0_enable_0 = SYS_TIMER_IRQ_1 | SYS_TIMER_IRQ_3 | SPI_INT;
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}
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void disable_interrupt_controller() {
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REGS_IRQ->irq0_enable_0 = 0;
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}
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void handle_irq() {
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unsigned int irq = REGS_IRQ->irq0_pending_0;
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while(irq & (SYS_TIMER_IRQ_1 | SYS_TIMER_IRQ_3 | SPI_INT)) {
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switch(irq) {
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case (SYS_TIMER_IRQ_1):
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irq &= ~SYS_TIMER_IRQ_1;
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handle_timer_1();
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break;
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case (SYS_TIMER_IRQ_3):
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irq &= ~SYS_TIMER_IRQ_3;
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handle_timer_3();
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break;
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case(SPI_INT):
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irq &= ~SPI_INT;
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handle_spi();
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break;
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default:
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debugstr("Unknown pending irq: %x /r/n",irq);
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}
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}
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}
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