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authorChristian Cunningham <cc@localhost>2022-01-23 13:22:39 -0700
committerChristian Cunningham <cc@localhost>2022-01-23 13:22:39 -0700
commit91741716578c1dea150fa7b4e6ac46553121447f (patch)
tree66100464b494d772db0ec190279f3fbfcb589b73 /src/cpu
parent13b239faf1c7f1d21fd4b0b774ea90c97c536623 (diff)
Trimmed IRQ handler
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/irq.c104
1 files changed, 4 insertions, 100 deletions
diff --git a/src/cpu/irq.c b/src/cpu/irq.c
index fd0cbd5..1a743ff 100644
--- a/src/cpu/irq.c
+++ b/src/cpu/irq.c
@@ -78,12 +78,8 @@ void c_irq_handler(void)
cmd[off] = (char) data;
off += 1;
release_mutex(&exe_cnt_m, SYS_PID);
- // New Task Case
- } else if (data == 0x61) {
- cmd[off] = (char) data;
- off += 1;
- add_thread(localtest, 0, 0);
- } else if (data == 0x62) {
+ // heap Info
+ } else if (data == 0x69) {
cmd[off] = (char) data;
off += 1;
add_thread(heap_info, 0, 5);
@@ -137,98 +133,7 @@ static unsigned long counter = 0;
unsigned long c_fiq_handler(void)
{
unsigned long source = load32(CORE0_FIQ_SOURCE);
- if (source & (1 << 8)) {
- if(load32(IRQ_PENDING2) & (1 << 25)) {
- if(load32(UART0_MIS) & (1<<4)) {
- unsigned long data = load32(UART0_DR);
- // Ctrl+Tab to toggle timer
- if(data == 0x14) {
- unsigned long timer_status;
- asm volatile("mrc p15, 0, %0, c14, c3, 1" : "=r"(timer_status));
- unsigned int x = g_Drawer.x;
- unsigned int y = g_Drawer.y;
- g_Drawer.x = 0;
- g_Drawer.y = 5;
- write_string(&g_Drawer, "TIMER: ");
- if(timer_status == 0) {
- cntfrq = read_cntfrq();
- write_cntv_tval(cntfrq/CPS);
- enablecntv();
- write_cstring(&g_Drawer, "Enabled ", 0x00FF00);
- } else {
- disablecntv();
- write_cstring(&g_Drawer, "Disabled", 0xFF0000);
- }
- g_Drawer.x = x;
- g_Drawer.y = y;
- } else {
- unsigned long off = cmdidx;
- if (off < 2048) {
- // Newline Case
- if (data == 0x0D) {
- for(int i = off; i>=0;i--)
- cmd[i] = 0x0;
- off = 0;
- // Backspace Case
- } else if (data == 0x08 || data == 0x7F) {
- if (off > 0) {
- off -= 1;
- }
- cmd[off] = 0x0;
- // Lock Case
- } else if (data == 0x6C) {
- cmd[off] = (char) data;
- off += 1;
- lock_mutex(&exe_cnt_m, SYS_PID);
- // Release Case
- } else if (data == 0x72) {
- cmd[off] = (char) data;
- off += 1;
- release_mutex(&exe_cnt_m, SYS_PID);
- // New Task Case
- } else if (data == 0x61) {
- cmd[off] = (char) data;
- off += 1;
- //_start(); // Trigger reset
- //heap_info_u();
- // Else output
- } else {
- cmd[off] = (char) data;
- off += 1;
- }
- } else if (off == 2048) {
- if (data == 0x0D) {
- for(int i = off; i>=0;i--)
- cmd[i] = 0x0;
- off = 0;
- } else if (data == 0x08 || data == 0x7F) {
- if (off > 0) {
- off -= 1;
- }
- cmd[off] = 0x0;
- }
- }
- cmdidx = off;
- }
- g_Drawer.x = 0;
- g_Drawer.y = 7;
- for(int i = 0; i < 128; i++)
- write_char(&g_Drawer, ' ');
- g_Drawer.x = 0;
- g_Drawer.y = 7;
- write_string(&g_Drawer, "> ");
- write_string(&g_Drawer, cmd);
- return 0;
- }
- } else if (*(unsigned long*)SYS_TIMER_CS == SYS_TIMER_SC_M0) {
- volatile unsigned long* timer_cs = (unsigned long*)SYS_TIMER_CS;
- volatile unsigned long* timer_chi = (unsigned long*)SYS_TIMER_CHI;
- volatile unsigned long* nexttime = (unsigned long*)SYS_TIMER_C0;
- *timer_cs = SYS_TIMER_SC_M0;
- //*nexttime = *timer_chi + 60000000;
- *nexttime = *timer_chi + 10000;
- }
- } else if (source & (1 << 3)) {
+ if (source & (1 << 3)) {
c_timer();
counter++;
if (counter % 0x100 == 0) {
@@ -236,8 +141,7 @@ unsigned long c_fiq_handler(void)
} else if (counter % 0x6000 == 0) {
counter = 0;
}
- if (counter % 0x60 == 0) {
- //uart_scheduler();
+ if (counter % 0x30 == 0) {
return 1;
}
return 0;