From 93bf62580a68533dc8252b9a2a055c02f34ecb67 Mon Sep 17 00:00:00 2001 From: Christian Cunningham Date: Thu, 24 Mar 2022 09:38:08 -0700 Subject: Modularized --- src/cpu/irq.c | 105 ---------------------------------------------------------- 1 file changed, 105 deletions(-) delete mode 100644 src/cpu/irq.c (limited to 'src/cpu/irq.c') diff --git a/src/cpu/irq.c b/src/cpu/irq.c deleted file mode 100644 index d3eefa2..0000000 --- a/src/cpu/irq.c +++ /dev/null @@ -1,105 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define CPS 1000 - -void handle_data(unsigned char); - -static unsigned long counter = 0; -unsigned long c_irq_handler(void) -{ - unsigned long source = load32(CORE0_IRQ_SOURCE); - // Check if GPU Interrupt - if (source & (1 << 8)) { - // Check if UART Interrupt - if(load32(IRQ_PENDING2) & (1 << 25)) { - // Check if UART Interrupt is Masked - if(load32(UART0_MIS) & (1<<4)) { - // Get the UART data - unsigned long data = load32(UART0_DR); - - // Handle the recieved data - // Ctrl+G to output scheduler debug info - if (data == 0x7) { - uart_scheduler(); - uart_mutexes(); - } - //// Ctrl+T to toggle timer - //else if(data == 0x14) { - // unsigned long timer_status; - // asm volatile("mrc p15, 0, %0, c14, c3, 1" : "=r"(timer_status)); - // if(timer_status == 0) { - // cntfrq = read_cntfrq(); - // write_cntv_tval(cntfrq/CPS); - // enablecntv(); - // draw_cstring(0, 3, "TIMER", 0x00FF00); - // } else { - // disablecntv(); - // draw_cstring(0, 3, "TIMER", 0xFF0000); - // } - //} - // Add task to handle the data - else { - add_thread(handle_data, (void*)data, PRIORITIES-1); - return 1; - } - } - } - // Check if System Time Compare 0 Triggered the Interrupt - if (*(volatile unsigned long*)SYS_TIMER_CS & SYS_TIMER_SC_M0) { - volatile unsigned long* timer_cs = (volatile unsigned long*)SYS_TIMER_CS; - volatile unsigned long* timer_chi = (volatile unsigned long*)SYS_TIMER_CHI; - volatile unsigned long* nexttime = (volatile unsigned long*)SYS_TIMER_C0; - add_thread_without_duplicate(main, 0, 0); - *nexttime = *timer_chi + 40; - *timer_cs = SYS_TIMER_SC_M0; - return 1; - } - } - // Check if CNTV triggered the interrupt - else if (source & (1 << 3)) { - // Reset the counter - write_cntv_tval(cntfrq/CPS); - counter++; - if (counter % 0x6000 == 0) - counter = 0; - } - return 0; -} - -unsigned long c_fiq_handler(void) -{ - unsigned long source = load32(CORE0_FIQ_SOURCE); - // Check if CNTV triggered the interrupt - if (source & (1 << 3)) { - write_cntv_tval(cntfrq); - } - return 0; -} - -void handle_data(unsigned char data) -{ - // Newline Case - if (data == 0x0D) { - // Backspace Case - } else if (data == 0x08 || data == 0x7F) { - } else if (data == 0x61) { - add_thread(uart_scheduler, 0, 2); - } else if (data == 0x62) { - //add_thread(test_entry, 0, 2); - } - // Draw it on the screen - { - draw_chex32(0, 9, data, 0xAA00FF); - } -} -- cgit v1.2.1