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f5e706ad SR |
1 | /* |
2 | * auxio.h: Definitions and code for the Auxiliary I/O register. | |
3 | * | |
4 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
5 | */ | |
6 | #ifndef _SPARC_AUXIO_H | |
7 | #define _SPARC_AUXIO_H | |
8 | ||
f5e706ad SR |
9 | #include <asm/vaddrs.h> |
10 | ||
11 | /* This register is an unsigned char in IO space. It does two things. | |
12 | * First, it is used to control the front panel LED light on machines | |
13 | * that have it (good for testing entry points to trap handlers and irq's) | |
14 | * Secondly, it controls various floppy drive parameters. | |
15 | */ | |
16 | #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ | |
17 | #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ | |
18 | #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ | |
19 | #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ | |
20 | #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ | |
21 | #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ | |
22 | #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ | |
23 | ||
24 | /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ | |
25 | #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ | |
26 | ||
27 | /* Set the following to zero to eject the floppy. */ | |
28 | #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ | |
29 | #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ | |
30 | ||
31 | #ifndef __ASSEMBLY__ | |
32 | ||
33 | /* | |
34 | * NOTE: these routines are implementation dependent-- | |
35 | * understand the hardware you are querying! | |
36 | */ | |
f05a6865 SR |
37 | void set_auxio(unsigned char bits_on, unsigned char bits_off); |
38 | unsigned char get_auxio(void); /* .../asm/floppy.h */ | |
f5e706ad SR |
39 | |
40 | /* | |
41 | * The following routines are provided for driver-compatibility | |
42 | * with sparc64 (primarily sunlance.c) | |
43 | */ | |
44 | ||
45 | #define AUXIO_LTE_ON 1 | |
46 | #define AUXIO_LTE_OFF 0 | |
47 | ||
48 | /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) | |
49 | * | |
50 | * on - AUXIO_LTE_ON or AUXIO_LTE_OFF | |
51 | */ | |
52 | #define auxio_set_lte(on) \ | |
53 | do { \ | |
54 | if(on) { \ | |
55 | set_auxio(AUXIO_LINK_TEST, 0); \ | |
56 | } else { \ | |
57 | set_auxio(0, AUXIO_LINK_TEST); \ | |
58 | } \ | |
59 | } while (0) | |
60 | ||
61 | #define AUXIO_LED_ON 1 | |
62 | #define AUXIO_LED_OFF 0 | |
63 | ||
64 | /* auxio_set_led - Set system front panel LED | |
65 | * | |
66 | * on - AUXIO_LED_ON or AUXIO_LED_OFF | |
67 | */ | |
68 | #define auxio_set_led(on) \ | |
69 | do { \ | |
70 | if(on) { \ | |
71 | set_auxio(AUXIO_LED, 0); \ | |
72 | } else { \ | |
73 | set_auxio(0, AUXIO_LED); \ | |
74 | } \ | |
75 | } while (0) | |
76 | ||
77 | #endif /* !(__ASSEMBLY__) */ | |
78 | ||
79 | ||
80 | /* AUXIO2 (Power Off Control) */ | |
d2aca8f9 | 81 | extern volatile u8 __iomem *auxio_power_register; |
f5e706ad SR |
82 | |
83 | #define AUXIO_POWER_DETECT_FAILURE 32 | |
84 | #define AUXIO_POWER_CLEAR_FAILURE 2 | |
85 | #define AUXIO_POWER_OFF 1 | |
86 | ||
87 | ||
88 | #endif /* !(_SPARC_AUXIO_H) */ |