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1da177e4 LT |
1 | /* $Id: auxio.h,v 1.18 1997/11/07 15:01:45 jj Exp $ |
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 | ||
9 | #include <asm/system.h> | |
10 | #include <asm/vaddrs.h> | |
11 | ||
12 | /* This register is an unsigned char in IO space. It does two things. | |
13 | * First, it is used to control the front panel LED light on machines | |
14 | * that have it (good for testing entry points to trap handlers and irq's) | |
15 | * Secondly, it controls various floppy drive parameters. | |
16 | */ | |
17 | #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ | |
18 | #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ | |
19 | #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ | |
20 | #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ | |
21 | #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ | |
22 | #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ | |
23 | #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ | |
24 | ||
25 | /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ | |
26 | #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ | |
27 | ||
28 | /* Set the following to zero to eject the floppy. */ | |
29 | #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ | |
30 | #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ | |
31 | ||
32 | #ifndef __ASSEMBLY__ | |
33 | ||
34 | /* | |
35 | * NOTE: these routines are implementation dependent-- | |
36 | * understand the hardware you are querying! | |
37 | */ | |
38 | extern void set_auxio(unsigned char bits_on, unsigned char bits_off); | |
39 | extern unsigned char get_auxio(void); /* .../asm-sparc/floppy.h */ | |
40 | ||
41 | /* | |
42 | * The following routines are provided for driver-compatibility | |
43 | * with sparc64 (primarily sunlance.c) | |
44 | */ | |
45 | ||
46 | #define AUXIO_LTE_ON 1 | |
47 | #define AUXIO_LTE_OFF 0 | |
48 | ||
49 | /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) | |
50 | * | |
51 | * on - AUXIO_LTE_ON or AUXIO_LTE_OFF | |
52 | */ | |
53 | #define auxio_set_lte(on) \ | |
54 | do { \ | |
55 | if(on) { \ | |
56 | set_auxio(AUXIO_LINK_TEST, 0); \ | |
57 | } else { \ | |
58 | set_auxio(0, AUXIO_LINK_TEST); \ | |
59 | } \ | |
60 | } while (0) | |
61 | ||
62 | #define AUXIO_LED_ON 1 | |
63 | #define AUXIO_LED_OFF 0 | |
64 | ||
65 | /* auxio_set_led - Set system front panel LED | |
66 | * | |
67 | * on - AUXIO_LED_ON or AUXIO_LED_OFF | |
68 | */ | |
69 | #define auxio_set_led(on) \ | |
70 | do { \ | |
71 | if(on) { \ | |
72 | set_auxio(AUXIO_LED, 0); \ | |
73 | } else { \ | |
74 | set_auxio(0, AUXIO_LED); \ | |
75 | } \ | |
76 | } while (0) | |
77 | ||
78 | #endif /* !(__ASSEMBLY__) */ | |
79 | ||
80 | ||
81 | /* AUXIO2 (Power Off Control) */ | |
82 | extern __volatile__ unsigned char * auxio_power_register; | |
83 | ||
84 | #define AUXIO_POWER_DETECT_FAILURE 32 | |
85 | #define AUXIO_POWER_CLEAR_FAILURE 2 | |
86 | #define AUXIO_POWER_OFF 1 | |
87 | ||
88 | ||
89 | #endif /* !(_SPARC_AUXIO_H) */ |