openpcd/firmware/src/os/led.c @ master
| 1 | 32985a29 | laforge | /* LED support code for OpenPCD
|
|---|---|---|---|
| 2 | * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
|
||
| 3 | *
|
||
| 4 | * This program is free software; you can redistribute it and/or modify
|
||
| 5 | * it under the terms of the GNU General Public License as published by
|
||
| 6 | * the Free Software Foundation; either version 2 of the License, or
|
||
| 7 | * (at your option) any later version.
|
||
| 8 | *
|
||
| 9 | * This program is distributed in the hope that it will be useful,
|
||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
| 12 | * GNU General Public License for more details.
|
||
| 13 | *
|
||
| 14 | * You should have received a copy of the GNU General Public License
|
||
| 15 | * along with this program; if not, write to the Free Software
|
||
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
| 17 | *
|
||
| 18 | */
|
||
| 19 | 41333333 | (no author) | |
| 20 | caf50003 | (no author) | #include <sys/types.h>
|
| 21 | 81416e6a | (no author) | #include <errno.h>
|
| 22 | #include <lib_AT91SAM7.h>
|
||
| 23 | #include <openpcd.h>
|
||
| 24 | 520784c7 | (no author) | #include "../openpcd.h"
|
| 25 | #include <os/usb_handler.h>
|
||
| 26 | #include <os/req_ctx.h>
|
||
| 27 | #include <os/dbgu.h>
|
||
| 28 | 41333333 | (no author) | |
| 29 | 817d9211 | laforge | static const int ledport[] = { |
| 30 | [1] = OPENPCD_PIO_LED1, |
||
| 31 | [2] = OPENPCD_PIO_LED2, |
||
| 32 | };
|
||
| 33 | |||
| 34 | 41333333 | (no author) | void led_switch(int led, int on) |
| 35 | {
|
||
| 36 | 817d9211 | laforge | int port; |
| 37 | |||
| 38 | if (led < 1 || led > 2) |
||
| 39 | 41333333 | (no author) | return; |
| 40 | |||
| 41 | 817d9211 | laforge | port = ledport[led]; |
| 42 | 41333333 | (no author) | if (on) |
| 43 | AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, port); |
||
| 44 | else
|
||
| 45 | AT91F_PIO_SetOutput(AT91C_BASE_PIOA, port); |
||
| 46 | }
|
||
| 47 | |||
| 48 | int led_get(int led) |
||
| 49 | {
|
||
| 50 | 817d9211 | laforge | int port; |
| 51 | 41333333 | (no author) | |
| 52 | 817d9211 | laforge | if (led < 1 || led > 2) |
| 53 | 41333333 | (no author) | return -1; |
| 54 | |||
| 55 | 817d9211 | laforge | port = ledport[led]; |
| 56 | |||
| 57 | 41333333 | (no author) | return !(AT91F_PIO_GetOutputDataStatus(AT91C_BASE_PIOA) & port); |
| 58 | }
|
||
| 59 | |||
| 60 | int led_toggle(int led) |
||
| 61 | {
|
||
| 62 | int on = led_get(led); |
||
| 63 | 817d9211 | laforge | if (on < 0) |
| 64 | return on; |
||
| 65 | 41333333 | (no author) | |
| 66 | 5f148f59 | (no author) | if (on) |
| 67 | 41333333 | (no author) | led_switch(led, 0); |
| 68 | 5f148f59 | (no author) | else
|
| 69 | 41333333 | (no author) | led_switch(led, 1); |
| 70 | caf50003 | (no author) | |
| 71 | return !on; |
||
| 72 | 41333333 | (no author) | }
|
| 73 | |||
| 74 | void led_init(void) |
||
| 75 | {
|
||
| 76 | caf50003 | (no author) | AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1); |
| 77 | AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2); |
||
| 78 | 41333333 | (no author) | led_switch(1, 0); |
| 79 | led_switch(2, 0); |
||
| 80 | }
|
