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  1. #include <io/io.h>
  2. #include <io/stream.h>
  3. #include <string.h>
  4. #include <malloc.h>
  5. #include <libc.h>
  6. #include <ipc/ipc.h>
  7. #include <ipc/ns.h>
  8. #include <ipc/fb.h>
  9. #include <ipc/services.h>
  10.  
  11. #define FDS 32
  12.  
  13. typedef struct stream_t {
  14.     pwritefn_t w;
  15.     preadfn_t r;
  16.     void * param;
  17. } stream_t;
  18.  
  19.  
  20. typedef struct vfb_descriptor_t {
  21.     int phone;
  22.     int vfb;
  23. } vfb_descriptor_t;
  24.  
  25.  
  26. stream_t streams[FDS] = {{0, 0, 0}};
  27.  
  28. /*
  29. ssize_t write_stdout(void *param, const void * buf, size_t count);
  30. ssize_t write_stdout(void *param, const void * buf, size_t count)
  31. {
  32.     return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count);
  33. }*/
  34.  
  35. static void vfb_send_char(vfb_descriptor_t *d, char c)
  36. {
  37.     ipcarg_t r0,r1;
  38.     ipc_call_sync_2(d->phone, FB_PUTCHAR, d->vfb, c, &r0, &r1);
  39. }
  40.                
  41. static ssize_t write_vfb(void *param, const void *buf, size_t count)
  42. {
  43.     int i;
  44.     for (i = 0; i < count; i++)
  45.         vfb_send_char((vfb_descriptor_t *) param, ((char *) buf)[i]);
  46.    
  47.     return count;
  48.     //return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count);
  49. }
  50.  
  51.  
  52. static ssize_t write_stderr(void *param, const void *buf, size_t count)
  53. {
  54.     return count;
  55.     //return (ssize_t) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, (sysarg_t) count);
  56. }
  57.  
  58.  
  59. stream_t open_vfb(void)
  60. {
  61.     stream_t stream;
  62.     vfb_descriptor_t *vfb;
  63.     int phoneid;
  64.     int res;
  65.     ipcarg_t vfb_no;
  66.    
  67.     while ((phoneid = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
  68.         volatile int a;
  69.        
  70.         for (a = 0; a < 1048576; a++);
  71.     }
  72.    
  73.     ipc_call_sync(phoneid, FB_GET_VFB, 0, &vfb_no);
  74.     vfb = malloc(sizeof(vfb_descriptor_t));
  75.    
  76.     vfb->phone = phoneid;
  77.     vfb->vfb = vfb_no;
  78.    
  79.     stream.w = write_vfb;
  80.     stream.param = vfb;
  81.     return stream;
  82. }
  83.  
  84.  
  85. fd_t open(const char *fname, int flags)
  86. {
  87.     int c = 0;
  88.    
  89.     while (((streams[c].w) || (streams[c].r)) && (c < FDS))
  90.         c++;
  91.     if (c == FDS)
  92.         return EMFILE;
  93.    
  94.     if (!strcmp(fname, "stdin")) {
  95.         streams[c].r = (preadfn_t)1;
  96.         return c;
  97.     }
  98.    
  99.     if (!strcmp(fname, "stdout")) {
  100.         //streams[c].w = write_stdout;
  101.         //return c;
  102.         streams[c] = open_vfb();
  103.         return c;
  104.     }
  105.    
  106.     if (!strcmp(fname, "stderr")) {
  107.         streams[c].w = write_stderr;
  108.         return c;
  109.     }
  110. }
  111.  
  112.  
  113. ssize_t write(int fd, const void *buf, size_t count)
  114. {
  115.     if (fd < FDS)
  116.         return streams[fd].w(streams[fd].param, buf, count);
  117.    
  118.     return 0;
  119. }
  120.