jordan/rpi4-osdev
1
0
Fork 0
mirror of https://github.com/isometimes/rpi4-osdev synced 2024-11-24 19:20:40 +00:00
Code Issues Projects Releases Packages Wiki Activity

Added better progress indicators for the cores in kernel.c

Browse source
This commit is contained in:
Adam Greenwood-Byrne 2021-02-23 15:33:12 +00:00
parent 0e540533d9
commit 84f7ebfae8
1 changed files with 41 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
part10-multicore/kernel.c
View file

@ -158,8 +158,31 @@ void playaudio_cpu()
}
}
void initProgress(void)
{
drawRect(0, 0, 301, 50, 0x0f, 0);
drawString(309, 21, "Core 0", 0x0f, 1);
drawRect(0, 60, 301, 110, 0x0f, 0);
drawString(309, 81, "Core 1", 0x0f, 1);
drawRect(0, 120, 301, 170, 0x0f, 0);
drawString(309, 141, "Core 2", 0x0f, 1);
drawRect(0, 180, 301, 230, 0x0f, 0);
drawString(309, 201, "Core 3", 0x0f, 1);
}
void drawProgress(unsigned int core, unsigned int val) {
// val should be 0-100
if (val == 0) drawRect(1, (60 * core) + 1, 300, (60 * core) + 49, 0x00, 1);
if (val > 0) drawRect(1, (60 * core) + 1, (val * 3), (60 * core) + 49, 0x33, 1);
}
void core2_main(void)
{
unsigned int core2_val = 0;
clear_core2(); // Only run once
debugstr("Playing on CPU Core #2 using DMA... ");
@ -168,34 +191,47 @@ void core2_main(void)
debugstr("core2_main() running still... ");
while (*(dma+DMA_CS) & 0x1) { // Wait for DMA transfer to finish - we could do anything here instead!
wait_msec(0x47FFFF);
debugstr("o"); // Print an o roughly every 4.5 seconds
wait_msec(0x7FFFF);
drawProgress(2, core2_val);
if (core2_val < 100) core2_val++;
}
debugstr(" ----> finished");
debugstr("done");
}
void core1_main(void)
{
unsigned int core1_val = 0;
clear_core1(); // Only run once
debugstr("Playing on CPU Core #1... ");
playaudio_cpu();
debugstr(" done"); debugcrlf();
debugstr("done"); debugcrlf();
core1_val = 100;
drawProgress(1, core1_val);
start_core2(core2_main); // Kick it off on core 2
}
void core0_main(void)
{
unsigned int core0_val = 0;
while (1) {
wait_msec(0x100000);
debugstr("x"); // Print an x roughly every 1 second
drawProgress(0, core0_val);
if (core0_val < 100) core0_val++;
}
}
void main(void)
{
fb_init();
initProgress();
unsigned int i=0;
while (i++<30) debugcrlf();
debugstr("Initialising audio unit... ");
audio_init();