| Jason Kridner | c3ef8bc | 2011-04-18 17:23:35 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2010 Texas Instruments, Inc. |
| 3 | * Jason Kridner <jkridner@beagleboard.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
| 7 | * published by the Free Software Foundation; either version 2 of |
| 8 | * the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 18 | * MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <common.h> |
| 21 | #include <status_led.h> |
| 22 | #include <asm/arch/cpu.h> |
| 23 | #include <asm/io.h> |
| 24 | #include <asm/arch/sys_proto.h> |
| 25 | #include <asm/arch/gpio.h> |
| 26 | |
| 27 | static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF}; |
| 28 | |
| 29 | /* GPIO pins for the LEDs */ |
| 30 | #define BEAGLE_LED_USR0 149 |
| 31 | #define BEAGLE_LED_USR1 150 |
| 32 | |
| 33 | #ifdef STATUS_LED_GREEN |
| 34 | void green_LED_off (void) |
| 35 | { |
| 36 | __led_set (STATUS_LED_GREEN, 0); |
| 37 | } |
| 38 | |
| 39 | void green_LED_on (void) |
| 40 | { |
| 41 | __led_set (STATUS_LED_GREEN, 1); |
| 42 | } |
| 43 | #endif |
| 44 | |
| 45 | void __led_init (led_id_t mask, int state) |
| 46 | { |
| 47 | __led_set (mask, state); |
| 48 | } |
| 49 | |
| 50 | void __led_toggle (led_id_t mask) |
| 51 | { |
| 52 | #ifdef STATUS_LED_BIT |
| 53 | if (STATUS_LED_BIT & mask) { |
| 54 | if (STATUS_LED_ON == saved_state[0]) |
| 55 | __led_set(STATUS_LED_BIT, 0); |
| 56 | else |
| 57 | __led_set(STATUS_LED_BIT, 1); |
| 58 | } |
| 59 | #endif |
| 60 | #ifdef STATUS_LED_BIT1 |
| 61 | if (STATUS_LED_BIT1 & mask) { |
| 62 | if (STATUS_LED_ON == saved_state[1]) |
| 63 | __led_set(STATUS_LED_BIT1, 0); |
| 64 | else |
| 65 | __led_set(STATUS_LED_BIT1, 1); |
| 66 | } |
| 67 | #endif |
| 68 | } |
| 69 | |
| 70 | void __led_set (led_id_t mask, int state) |
| 71 | { |
| 72 | #ifdef STATUS_LED_BIT |
| 73 | if (STATUS_LED_BIT & mask) { |
| 74 | if (!omap_request_gpio(BEAGLE_LED_USR0)) { |
| 75 | omap_set_gpio_direction(BEAGLE_LED_USR0, 0); |
| 76 | omap_set_gpio_dataout(BEAGLE_LED_USR0, state); |
| 77 | } |
| 78 | saved_state[0] = state; |
| 79 | } |
| 80 | #endif |
| 81 | #ifdef STATUS_LED_BIT1 |
| 82 | if (STATUS_LED_BIT1 & mask) { |
| 83 | if (!omap_request_gpio(BEAGLE_LED_USR1)) { |
| 84 | omap_set_gpio_direction(BEAGLE_LED_USR1, 0); |
| 85 | omap_set_gpio_dataout(BEAGLE_LED_USR1, state); |
| 86 | } |
| 87 | saved_state[1] = state; |
| 88 | } |
| 89 | #endif |
| 90 | } |
| 91 | |