git.mutantstargoat.com Git - rpikern/blob - src/main.c

   1 #include "config.h"
   2
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include <stdint.h>
   6 #include <ctype.h>
   7 #include "asm.h"
   8 #include "rpi.h"
   9 #include "contty.h"
  10 #include "serial.h"
  11 #include "timer.h"
  12 #include "video.h"
  13 #include "intr.h"
  14
  15 void dbgled(int x);
  16
  17 void reboot(void);
  18
  19 static void cmdrun(char *cmd);
  20
  21 int main(void)
  22 {
  23         int lastnl = 0;
  24         static char cmdbuf[256];
  25         static int cmdend;
  26
  27         rpi_init();
  28         /*init_serial(115200); done in rpi_init now for early debugging */
  29         con_init();
  30
  31         printf("Detected raspberry pi %d, I/O base: %x\n", rpi_model, rpi_iobase);
  32         printf("Main RAM base: %x, size: %u bytes\n", rpi_mem_base, rpi_mem_size);
  33         printf("Video RAM base: %x, size: %u bytes\n", rpi_vmem_base, rpi_vmem_size);
  34
  35         timer_init();
  36         video_init();
  37
  38         enable_intr();
  39
  40         printf("Going interactive\n");
  41
  42         for(;;) {
  43                 while(ser_pending()) {
  44                         int c = getchar();
  45
  46                         switch(c) {
  47                         case '\r':
  48                         case '\n':
  49                                 if(!lastnl) {
  50                                         printf("\r\n");
  51                                         cmdbuf[cmdend] = 0;
  52                                         cmdend = 0;
  53                                         cmdrun(cmdbuf);
  54                                 }
  55                                 lastnl = 1;
  56                                 break;
  57
  58                         case -1:
  59                                 lastnl = 0;
  60                                 printf("error!\n");
  61                                 break;
  62
  63                         default:
  64                                 lastnl = 0;
  65                                 putchar(c);
  66                                 if(cmdend < sizeof cmdbuf) {
  67                                         cmdbuf[cmdend++] = c;
  68                                 }
  69                         }
  70                 }
  71
  72                 /*video_update(1);*/
  73         }
  74
  75         return 0;
  76 }
  77
  78 void reboot(void)
  79 {
  80         printf("Rebooting ...\n");
  81         rpi_reboot();
  82 }
  83
  84 static void cmdrun(char *cmd)
  85 {
  86         static int cur_x, cur_y;
  87         char *ptr, *args;
  88
  89         while(*cmd && isspace(*cmd)) cmd++;
  90         ptr = cmd;
  91         while(*ptr && !isspace(*ptr)) ptr++;
  92         *ptr = 0;
  93         args = ptr + 1;
  94
  95         if(strcmp(cmd, "reboot") == 0) {
  96                 reboot();
  97
  98         } else if(strcmp(cmd, "down") == 0) {
  99                 printf("scroll down\n");
 100                 cur_y += 10;
 101                 video_scroll(cur_x, cur_y);
 102
 103         } else if(strcmp(cmd, "up") == 0) {
 104                 printf("scroll up\n");
 105                 cur_y -= 10;
 106                 video_scroll(cur_x, cur_y);
 107
 108         } else if(strcmp(cmd, "ticks") == 0) {
 109                 printf("%lu\n", num_ticks);
 110
 111         } else if(strcmp(cmd, "help") == 0) {
 112                 printf("help not implemented yet\n");
 113         } else if(strcmp(cmd, "ver") == 0) {
 114                 printf("rpikern version 0.0\n");
 115         } else {
 116                 printf("Unknown command: %s\n", cmd);
 117         }
 118 }