| 94 | |
| 95 | |
| 96 | u32 floppy_getbyte(void) |
| 97 | { |
| 98 | u8 stat, i; |
| 99 | |
| 100 | for ( i = 0; i < 128; i++ ) { |
| 101 | stat = inb( FD_STATUS ) & (STATUS_READY|STATUS_DIR|STATUS_BUSY); //读取状态寄存器 |
| 102 | if (stat == STATUS_READY) |
| 103 | return -1; |
| 104 | if ( stat == 0xD0 ) |
| 105 | return inb(FD_DATA); |
| 106 | io_delay(); |
| 107 | } |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | |
| 112 | u32 floppy_get_info(void) |
no test coverage detected