This patch allows any at91 board, implementing the GPIO LED API,
to control the LEDs from the console.
led [ 1 | 2 | 3 | all ] [ on | off ]
Adding configuration items CONFIG_AT91_LED and CONFIG_CMD_LED
enables the command.
Moreover the GPIO Pins have to be defined by CONFIG_USER1_LED ...
CONFIG_USER3_LED.
---
common/Makefile | 1 +
common/cmd_led.c | 86 +++++++++++++++++++++++++++++++++++++++
cpu/arm926ejs/at91/led.c | 79 +++++++++++++++++++++++++++++++++++
include/asm-arm/arch-at91/led.h | 52 +++++++++++++++++++++++
4 files changed, 218 insertions(+), 0 deletions(-)
create mode 100644 common/cmd_led.c
create mode 100644 include/asm-arm/arch-at91/led.h
diff --git a/common/Makefile b/common/Makefile
index b9f4ca7..e0f571c 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -103,6 +103,7 @@ COBJS-$(CONFIG_CMD_IMMAP) += cmd_immap.o
COBJS-$(CONFIG_CMD_IRQ) += cmd_irq.o
COBJS-$(CONFIG_CMD_ITEST) += cmd_itest.o
COBJS-$(CONFIG_CMD_JFFS2) += cmd_jffs2.o
+COBJS-$(CONFIG_CMD_LED) += cmd_led.o
COBJS-$(CONFIG_CMD_LICENSE) += cmd_license.o
COBJS-y += cmd_load.o
COBJS-$(CONFIG_LOGBUFFER) += cmd_log.o
diff --git a/common/cmd_led.c b/common/cmd_led.c
new file mode 100644
index 0000000..f914d2d
--- /dev/null
+++ b/common/cmd_led.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2008
+ * Ulf Samuelsson <ulf.samuelsson at atmel.com>
+ *
+ * (C) Copyright 2009
+ * Daniel Gorsulowski <daniel.gorsulow...@esd.eu>
+ * esd electronic system design gmbh <www.esd.eu>
+ *
+ * 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 <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/arch/led.h>
+
+int do_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int led;
+
+ /* Validate arguments */
+ if ((argc != 3)) {
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+ if (strcmp(argv[1], "1") == 0) {
+ led = (1 << 0);
+ } else if (strcmp(argv[1], "2") == 0) {
+ led = (1 << 1);
+ } else if (strcmp(argv[1], "3") == 0) {
+ led = (1 << 2);
+ } else if (strcmp(argv[1], "all") == 0) {
+ led = 31;
+ } else {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ if (strcmp(argv[2], "off") == 0) {
+#ifdef CONFIG_USER1_LED
+ if(led & 1) user1_led_off();
+#endif
+#ifdef CONFIG_USER2_LED
+ if(led & 2) user2_led_off();
+#endif
+#ifdef CONFIG_USER3_LED
+ if(led & 4) user3_led_off();
+#endif
+ } else if (strcmp(argv[2], "on") == 0) {
+#ifdef CONFIG_USER1_LED
+ if(led & 1) user1_led_on();
+#endif
+#ifdef CONFIG_USER2_LED
+ if(led & 2) user2_led_on();
+#endif
+#ifdef CONFIG_USER3_LED
+ if(led & 4) user3_led_on();
+#endif
+ } else {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+ return 0;
+}
+
+U_BOOT_CMD(
+ led, 3, 1, do_led,
+ "[1|2|3|all] [on|off]",
+ "[1|2|3|all] [on|off] sets/clears led 1,2,3"
+);
diff --git a/cpu/arm926ejs/at91/led.c b/cpu/arm926ejs/at91/led.c
index be68f59..46a74fe 100644
--- a/cpu/arm926ejs/at91/led.c
+++ b/cpu/arm926ejs/at91/led.c
@@ -3,6 +3,10 @@
* Stelian Pop <stelian....@leadtechdesign.com>
* Lead Tech Design <www.leadtechdesign.com>
*
+ * (C) Copyright 2009
+ * Daniel Gorsulowski <daniel.gorsulow...@esd.eu>
+ * esd electronic system design gmbh <www.esd.eu>
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -27,6 +31,81 @@
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
+#ifdef CONFIG_AT91_LED
+
+#if defined(CONFIG_AT91RM9200)
+#include <asm/arch/at91rm9200.h>
+#elif defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20)
+#include <asm/arch/at91sam9260.h>
+#elif defined(CONFIG_AT91SAM9261)
+#include <asm/arch/at91sam9261.h>
+#elif defined(CONFIG_AT91SAM9263)
+#include <asm/arch/at91sam9263.h>
+#elif defined(CONFIG_AT91SAM9RL)
+#include <asm/arch/at91sam9rl.h>
+#elif defined(CONFIG_AT91CAP9)
+#include <asm/arch/at91cap9.h>
+#endif
+
+#include <asm/arch/led.h>
+
+void at91_led_init(void)
+{
+ /* Enable clock */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_PIOB |
+ 1 << AT91SAM9263_ID_PIOCDE);
+
+#ifdef CONFIG_USER1_LED
+ at91_set_gpio_output(CONFIG_USER1_LED, 1);
+ at91_set_gpio_value(CONFIG_USER1_LED, 1);
+#endif
+#ifdef CONFIG_USER2_LED
+ at91_set_gpio_output(CONFIG_USER2_LED, 1);
+ at91_set_gpio_value(CONFIG_USER2_LED, 1);
+#endif
+#ifdef CONFIG_USER3_LED
+ at91_set_gpio_output(CONFIG_USER3_LED, 1);
+ at91_set_gpio_value(CONFIG_USER3_LED, 1);
+#endif
+}
+#ifdef CONFIG_USER1_LED
+void user1_led_on(void)
+{
+ at91_set_gpio_value(CONFIG_USER1_LED, 0);
+}
+
+void user1_led_off(void)
+{
+ at91_set_gpio_value(CONFIG_USER1_LED, 1);
+}
+#endif
+
+#ifdef CONFIG_USER2_LED
+void user2_led_on(void)
+{
+ at91_set_gpio_value(CONFIG_USER2_LED, 0);
+}
+
+void user2_led_off(void)
+{
+ at91_set_gpio_value(CONFIG_USER2_LED, 1);
+}
+#endif
+
+#ifdef CONFIG_USER3_LED
+void user3_led_on(void)
+{
+ at91_set_gpio_value(CONFIG_USER3_LED, 0);
+}
+
+void user3_led_off(void)
+{
+ at91_set_gpio_value(CONFIG_USER3_LED, 1);
+}
+#endif
+
+#endif /* CONFIG_AT91_LED */
+
#ifdef CONFIG_RED_LED
void red_LED_on(void)
{
diff --git a/include/asm-arm/arch-at91/led.h b/include/asm-arm/arch-at91/led.h
new file mode 100644
index 0000000..878b2cf
--- /dev/null
+++ b/include/asm-arm/arch-at91/led.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, w...@denx.de.
+ *
+ * (C) Copyright 2009
+ * Daniel Gorsulowski <daniel.gorsulow...@esd.eu>
+ * esd electronic system design gmbh <www.esd.eu>
+ *
+ * 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
+ */
+
+#ifndef __ASM_ARCH_LED_H
+#define __ASM_ARCH_LED_H
+
+/*
+ * User LEDs API
+ */
+#ifndef __ASSEMBLY__
+extern void at91_led_init(void);
+extern void user1_led_on(void);
+extern void user1_led_off(void);
+extern void user2_led_on(void);
+extern void user2_led_off(void);
+extern void user3_led_on(void);
+extern void user3_led_off(void);
+#else
+ .extern at91_led_init
+ .extern user1_led_on
+ .extern user1_led_off
+ .extern user2_led_on
+ .extern user2_led_off
+ .extern user3_led_on
+ .extern user3_led_off
+#endif
+
+#endif /* __ASM_ARCH_LED_H */
--
1.6.1
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