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| 51 | 51 | ||
| 52 | static inline __u8 inb(__u16 port) |
52 | static inline __u8 inb(__u16 port) |
| 53 | { |
53 | { |
| 54 | __u8 out; |
54 | __u8 out; |
| 55 | 55 | ||
| 56 | asm ( |
56 | __asm__ volatile ( |
| 57 | "mov %1, %%dx;" |
57 | "mov %1, %%dx;" |
| 58 | "inb %%dx,%%al;" |
58 | "inb %%dx,%%al;" |
| 59 | "mov %%al, %0;" |
59 | "mov %%al, %0;" |
| 60 | :"=m"(out) |
60 | :"=m"(out) |
| 61 | :"m"(port) |
61 | :"m"(port) |
| 62 | :"%dx","%al" |
62 | :"%rdx","%rax" |
| 63 | ); |
63 | ); |
| 64 | return out; |
64 | return out; |
| 65 | } |
65 | } |
| 66 | 66 | ||
| 67 | static inline __u8 outb(__u16 port,__u8 b) |
67 | static inline __u8 outb(__u16 port,__u8 b) |
| 68 | { |
68 | { |
| 69 | asm ( |
69 | __asm__ volatile ( |
| 70 | "mov %0,%%dx;" |
70 | "mov %0,%%dx;" |
| 71 | "mov %1,%%al;" |
71 | "mov %1,%%al;" |
| 72 | "outb %%al,%%dx;" |
72 | "outb %%al,%%dx;" |
| 73 | : |
73 | : |
| 74 | :"m"( port), "m" (b) |
74 | :"m"( port), "m" (b) |
| 75 | :"%dx","%al" |
75 | :"%rdx","%rax" |
| 76 | ); |
76 | ); |
| 77 | } |
77 | } |
| 78 | 78 | ||
| 79 | /** Set priority level low |
79 | /** Set priority level low |
| 80 | * |
80 | * |