| 35,6 → 35,7 |
|---|
| ofw_entry ofw; |
| |
| phandle ofw_chosen; |
| ihandle ofw_stdin; |
| ihandle ofw_stdout; |
| |
| void ofw_init(void) |
| 43,8 → 44,11 |
|---|
| if (ofw_chosen == -1) |
| ofw_done(); |
| |
| if (ofw_get_property(ofw_chosen, "stdin", &ofw_stdin, sizeof(ofw_stdin)) <= 0) |
| ofw_stdin = 0; |
| |
| if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
| ofw_stdout = 0; |
| ofw_stdout = 0; |
| } |
| |
| void ofw_done(void) |
| 84,6 → 88,25 |
|---|
| (void) ofw_call("write", 3, 1, ofw_stdout, &ch, 1); |
| } |
| |
| /** Read character from OFW's input. |
| * |
| * This call is non-blocking. |
| * |
| * @return 0 if no character was read, character read otherwise. |
| */ |
| char ofw_getchar(void) |
| { |
| char ch; |
| |
| if (ofw_stdin == 0) |
| return 0; |
| |
| if (ofw_call("read", 3, 1, ofw_stdin, &ch, 1) == 1) |
| return ch; |
| else |
| return 0; |
| } |
| |
| phandle ofw_find_device(const char *name) |
| { |
| return (phandle) ofw_call("finddevice", 1, 1, name); |