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cb82a532 US |
1 | /* |
2 | * (C) Copyright 2006 | |
3 | * Atmel Nordic AB <www.atmel.com> | |
4 | * Ulf Samuelsson <ulf@atmel.com> | |
5 | * | |
99fa97e9 AB |
6 | * (C) Copyright 2010 |
7 | * Andreas Bießmann <andreas.devel@gmail.com> | |
8 | * | |
cb82a532 US |
9 | * See file CREDITS for list of people who contributed to this |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
99fa97e9 AB |
29 | #include <asm/arch/gpio.h> |
30 | #include <asm/arch/at91_pmc.h> | |
cb82a532 | 31 | |
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32 | /* bit mask in PIO port B */ |
33 | #define GREEN_LED (1<<0) | |
34 | #define YELLOW_LED (1<<1) | |
35 | #define RED_LED (1<<2) | |
cb82a532 US |
36 | |
37 | void green_LED_on(void) | |
38 | { | |
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39 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
40 | writel(GREEN_LED, &pio->piob.codr); | |
cb82a532 US |
41 | } |
42 | ||
43 | void yellow_LED_on(void) | |
44 | { | |
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45 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
46 | writel(YELLOW_LED, &pio->piob.codr); | |
cb82a532 US |
47 | } |
48 | ||
49 | void red_LED_on(void) | |
50 | { | |
99fa97e9 AB |
51 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
52 | writel(RED_LED, &pio->piob.codr); | |
cb82a532 US |
53 | } |
54 | ||
55 | void green_LED_off(void) | |
56 | { | |
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57 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
58 | writel(GREEN_LED, &pio->piob.sodr); | |
cb82a532 US |
59 | } |
60 | ||
61 | void yellow_LED_off(void) | |
62 | { | |
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63 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
64 | writel(YELLOW_LED, &pio->piob.sodr); | |
cb82a532 US |
65 | } |
66 | ||
67 | void red_LED_off(void) | |
68 | { | |
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69 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; |
70 | writel(RED_LED, &pio->piob.sodr); | |
cb82a532 US |
71 | } |
72 | ||
cb82a532 US |
73 | void coloured_LED_init (void) |
74 | { | |
99fa97e9 AB |
75 | at91_pmc_t *pmc = (at91_pmc_t *)AT91_PMC_BASE; |
76 | at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE; | |
cb82a532 US |
77 | |
78 | /* Enable PIOB clock */ | |
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79 | writel(1 << AT91_ID_PIOB, &pmc->pcer); |
80 | ||
cb82a532 | 81 | /* Disable peripherals on LEDs */ |
99fa97e9 | 82 | writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per); |
cb82a532 | 83 | /* Enable pins as outputs */ |
99fa97e9 | 84 | writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.oer); |
cb82a532 | 85 | /* Turn all LEDs OFF */ |
99fa97e9 | 86 | writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.sodr); |
cb82a532 | 87 | } |