openpcd/firmware/src/os/led.c @ master
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/* LED support code for OpenPCD
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* (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <lib_AT91SAM7.h>
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#include <openpcd.h>
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#include "../openpcd.h"
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#include <os/usb_handler.h>
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#include <os/req_ctx.h>
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#include <os/dbgu.h>
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static const int ledport[] = { |
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[1] = OPENPCD_PIO_LED1, |
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[2] = OPENPCD_PIO_LED2, |
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};
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void led_switch(int led, int on) |
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{
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int port; |
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if (led < 1 || led > 2) |
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return; |
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port = ledport[led]; |
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if (on) |
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AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, port); |
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else
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AT91F_PIO_SetOutput(AT91C_BASE_PIOA, port); |
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}
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int led_get(int led) |
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{
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int port; |
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if (led < 1 || led > 2) |
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return -1; |
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port = ledport[led]; |
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return !(AT91F_PIO_GetOutputDataStatus(AT91C_BASE_PIOA) & port); |
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}
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int led_toggle(int led) |
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{
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int on = led_get(led); |
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if (on < 0) |
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return on; |
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if (on) |
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led_switch(led, 0); |
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else
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led_switch(led, 1); |
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return !on; |
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}
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void led_init(void) |
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{
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AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1); |
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AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2); |
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led_switch(1, 0); |
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led_switch(2, 0); |
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}
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