1 /*
2 * Definitions for the "Baboon" custom IC on the PowerBook 190.
3 */
4
5 #define BABOON_BASE (0x50F1A000) /* same as IDE controller base */
6
7 #ifndef __ASSEMBLY__
8
9 struct baboon {
10 char pad1[208]; /* generic IDE registers, not used here */
11 short mb_control; /* Control register:
12 * bit 5 : slot 2 power control
13 * bit 6 : slot 1 power control
14 */
15 char pad2[2];
16 short mb_status; /* (0xD4) media bay status register:
17 *
18 * bit 0: ????
19 * bit 1: IDE interrupt active?
20 * bit 2: bay status, 0 = full, 1 = empty
21 * bit 3: ????
22 */
23 char pad3[2]; /* (0xD6) not used */
24 short mb_ifr; /* (0xD8) media bay interrupt flags register:
25 *
26 * bit 0: ????
27 * bit 1: IDE controller interrupt
28 * bit 2: media bay status change interrupt
29 */
30 };
31
32 extern volatile struct baboon *baboon;
33
34 #endif /* __ASSEMBLY **/
35
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