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-rw-r--r--target/linux/at91/image/dfboot/src/led.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/target/linux/at91/image/dfboot/src/led.c b/target/linux/at91/image/dfboot/src/led.c
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+++ b/target/linux/at91/image/dfboot/src/led.c
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+/*
+ * (C) Copyright 2006
+ * Atmel Nordic AB <www.atmel.com>
+ * Ulf Samuelsson <ulf@atmel.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <AT91RM9200.h>
+
+#define GREEN_LED AT91C_PIO_PB0
+#define YELLOW_LED AT91C_PIO_PB1
+#define RED_LED AT91C_PIO_PB2
+
+void LED_set(unsigned int led)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+ PIOB->PIO_SODR = (led ^ 0x7) & 0x7; // All 0's => Set PIO high => OFF
+ PIOB->PIO_CODR = led & 0x7; // All 1's => Set PIO low => ON
+}
+
+void green_LED_on(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_CODR = GREEN_LED;
+ PIOB->PIO_CODR = (1 << 0);
+}
+
+void yellow_LED_on(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_CODR = YELLOW_LED;
+ PIOB->PIO_CODR = (1 << 1);
+}
+
+void red_LED_on(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_CODR = RED_LED;
+ PIOB->PIO_CODR = (1 << 2);
+}
+
+void green_LED_off(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_SODR = GREEN_LED;
+ PIOB->PIO_SODR = (1 << 0);
+}
+
+void yellow_LED_off(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_SODR = YELLOW_LED;
+ PIOB->PIO_SODR = (1 << 1);
+}
+
+void red_LED_off(void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+// PIOB->PIO_SODR = RED_LED;
+ PIOB->PIO_SODR = (1 << 2);
+}
+
+void LED_blink(unsigned int led)
+{
+ volatile int i,j;
+ for(i = 0; i < 5; i++) {
+ LED_set((1 << led)&0x7);
+ for(j= 0; j < 200000; j++);
+ LED_set(0);
+ for(j= 0; j < 200000; j++);
+ }
+}
+
+
+void LED_init (void)
+{
+ AT91PS_PIO PIOB = AT91C_BASE_PIOB;
+ AT91PS_PMC PMC = AT91C_BASE_PMC;
+ PMC->PMC_PCER = (1 << AT91C_ID_PIOB); // Enable PIOB clock
+ // Disable peripherals on LEDs
+ PIOB->PIO_PER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+ // Enable pins as outputs
+ PIOB->PIO_OER = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+ // Turn all LEDs OFF
+ PIOB->PIO_SODR = AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0;
+}