OpenWrt – Blame information for rev 4
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Rev | Author | Line No. | Line |
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4 | office | 1 | /* |
2 | * (C) Copyright 2006 |
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3 | * Atmel Nordic AB <www.atmel.com> |
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4 | * Ulf Samuelsson <ulf@atmel.com> |
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5 | * |
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6 | * See file CREDITS for list of people who contributed to this |
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7 | * project. |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or |
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10 | * modify it under the terms of the GNU General Public License as |
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11 | * published by the Free Software Foundation; either version 2 of |
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12 | * the License, or (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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22 | * MA 02111-1307 USA |
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23 | */ |
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24 | |||
25 | #include <AT91RM9200.h> |
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26 | |||
27 | #define GREEN_LED AT91C_PIO_PB0 |
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28 | #define YELLOW_LED AT91C_PIO_PB1 |
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29 | #define RED_LED AT91C_PIO_PB2 |
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30 | |||
31 | void LED_set(unsigned int led) |
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32 | { |
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33 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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34 | PIOB->PIO_SODR = (led ^ 0x7) & 0x7; // All 0's => Set PIO high => OFF |
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35 | PIOB->PIO_CODR = led & 0x7; // All 1's => Set PIO low => ON |
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36 | } |
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37 | |||
38 | void green_LED_on(void) |
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39 | { |
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40 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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41 | // PIOB->PIO_CODR = GREEN_LED; |
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42 | PIOB->PIO_CODR = (1 << 0); |
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43 | } |
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44 | |||
45 | void yellow_LED_on(void) |
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46 | { |
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47 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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48 | // PIOB->PIO_CODR = YELLOW_LED; |
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49 | PIOB->PIO_CODR = (1 << 1); |
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50 | } |
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51 | |||
52 | void red_LED_on(void) |
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53 | { |
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54 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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55 | // PIOB->PIO_CODR = RED_LED; |
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56 | PIOB->PIO_CODR = (1 << 2); |
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57 | } |
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58 | |||
59 | void green_LED_off(void) |
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60 | { |
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61 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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62 | // PIOB->PIO_SODR = GREEN_LED; |
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63 | PIOB->PIO_SODR = (1 << 0); |
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64 | } |
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65 | |||
66 | void yellow_LED_off(void) |
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67 | { |
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68 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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69 | // PIOB->PIO_SODR = YELLOW_LED; |
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70 | PIOB->PIO_SODR = (1 << 1); |
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71 | } |
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72 | |||
73 | void red_LED_off(void) |
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74 | { |
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75 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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76 | // PIOB->PIO_SODR = RED_LED; |
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77 | PIOB->PIO_SODR = (1 << 2); |
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78 | } |
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79 | |||
80 | void LED_blink(unsigned int led) |
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81 | { |
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82 | volatile int i,j; |
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83 | for(i = 0; i < 5; i++) { |
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84 | LED_set((1 << led)&0x7); |
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85 | for(j= 0; j < 200000; j++); |
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86 | LED_set(0); |
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87 | for(j= 0; j < 200000; j++); |
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88 | } |
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89 | } |
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90 | |||
91 | |||
92 | void LED_init (void) |
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93 | { |
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94 | AT91PS_PIO PIOB = AT91C_BASE_PIOB; |
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95 | AT91PS_PMC PMC = AT91C_BASE_PMC; |
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96 | PMC->PMC_PCER = (1 << AT91C_ID_PIOB); // Enable PIOB clock |
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97 | // Disable peripherals on LEDs |
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98 | PIOB->PIO_PER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0; |
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99 | // Enable pins as outputs |
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100 | PIOB->PIO_OER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0; |
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101 | // Turn all LEDs OFF |
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102 | PIOB->PIO_SODR = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0; |
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103 | } |