Commit | Line | Data |
---|---|---|
b920de1b DH |
1 | /* ASB2305 Peripheral 7-segment LEDs x4 support |
2 | * | |
3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public Licence | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the Licence, or (at your option) any later version. | |
10 | */ | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/param.h> | |
13 | #include <linux/init.h> | |
14 | #include <asm/io.h> | |
15 | #include <asm/processor.h> | |
07c706a6 AV |
16 | #include <asm/intctl-regs.h> |
17 | #include <asm/rtc-regs.h> | |
2f2a2132 | 18 | #include <unit/leds.h> |
b920de1b DH |
19 | |
20 | static const u8 asb2305_led_hex_tbl[16] = { | |
21 | 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0, | |
22 | 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c | |
23 | }; | |
24 | ||
25 | static const u32 asb2305_led_chase_tbl[6] = { | |
26 | ~0x02020202, /* top - segA */ | |
27 | ~0x04040404, /* right top - segB */ | |
28 | ~0x08080808, /* right bottom - segC */ | |
29 | ~0x10101010, /* bottom - segD */ | |
30 | ~0x20202020, /* left bottom - segE */ | |
31 | ~0x40404040, /* left top - segF */ | |
32 | }; | |
33 | ||
34 | static unsigned asb2305_led_chase; | |
35 | ||
36 | void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) | |
37 | { | |
38 | u32 leds; | |
39 | ||
40 | leds = asb2305_led_hex_tbl[(val/1000) % 10]; | |
41 | leds <<= 8; | |
42 | leds |= asb2305_led_hex_tbl[(val/100) % 10]; | |
43 | leds <<= 8; | |
44 | leds |= asb2305_led_hex_tbl[(val/10) % 10]; | |
45 | leds <<= 8; | |
46 | leds |= asb2305_led_hex_tbl[val % 10]; | |
47 | leds |= points^0x01010101; | |
48 | ||
49 | ASB2305_7SEGLEDS = leds; | |
50 | } | |
51 | ||
52 | void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) | |
53 | { | |
54 | u32 leds; | |
55 | ||
56 | leds = asb2305_led_hex_tbl[(val/1000) % 10]; | |
57 | leds <<= 8; | |
58 | leds |= asb2305_led_hex_tbl[(val/100) % 10]; | |
59 | leds <<= 8; | |
60 | leds |= asb2305_led_hex_tbl[(val/10) % 10]; | |
61 | leds <<= 8; | |
62 | leds |= asb2305_led_hex_tbl[val % 10]; | |
63 | leds |= points^0x01010101; | |
64 | ||
65 | ASB2305_7SEGLEDS = leds; | |
66 | } | |
67 | ||
68 | void peripheral_leds_display_exception(enum exception_code code) | |
69 | { | |
70 | u32 leds; | |
71 | ||
72 | leds = asb2305_led_hex_tbl[(code/0x100) % 0x10]; | |
73 | leds <<= 8; | |
74 | leds |= asb2305_led_hex_tbl[(code/0x10) % 0x10]; | |
75 | leds <<= 8; | |
76 | leds |= asb2305_led_hex_tbl[code % 0x10]; | |
77 | leds |= 0x6d010101; | |
78 | ||
79 | ASB2305_7SEGLEDS = leds; | |
80 | } | |
81 | ||
82 | void peripheral_leds7x4_display_minssecs(unsigned int time, unsigned int points) | |
83 | { | |
84 | u32 leds; | |
85 | ||
86 | leds = asb2305_led_hex_tbl[(time/600) % 6]; | |
87 | leds <<= 8; | |
88 | leds |= asb2305_led_hex_tbl[(time/60) % 10]; | |
89 | leds <<= 8; | |
90 | leds |= asb2305_led_hex_tbl[(time/10) % 6]; | |
91 | leds <<= 8; | |
92 | leds |= asb2305_led_hex_tbl[time % 10]; | |
93 | leds |= points^0x01010101; | |
94 | ||
95 | ASB2305_7SEGLEDS = leds; | |
96 | } | |
97 | ||
98 | void peripheral_leds7x4_display_rtc(void) | |
99 | { | |
100 | unsigned int clock; | |
101 | u8 mins, secs; | |
102 | ||
103 | mins = RTMCR; | |
104 | secs = RTSCR; | |
105 | ||
106 | clock = ((mins & 0xf0) >> 4); | |
107 | clock *= 10; | |
108 | clock += (mins & 0x0f); | |
109 | clock *= 6; | |
110 | ||
111 | clock += ((secs & 0xf0) >> 4); | |
112 | clock *= 10; | |
113 | clock += (secs & 0x0f); | |
114 | ||
115 | peripheral_leds7x4_display_minssecs(clock, 0); | |
116 | } | |
117 | ||
118 | void peripheral_leds_led_chase(void) | |
119 | { | |
120 | ASB2305_7SEGLEDS = asb2305_led_chase_tbl[asb2305_led_chase]; | |
121 | asb2305_led_chase++; | |
122 | if (asb2305_led_chase >= 6) | |
123 | asb2305_led_chase = 0; | |
124 | } |