[U-Boot] [PATCH 08/10] ZOOM2 Add led support.
Tom Rix
Tom.Rix at windriver.com
Tue Apr 14 16:41:01 CEST 2009
This patch controls the large LED on the top left of the zoom2.
Signed-off-by: Tom Rix <Tom.Rix at windriver.com>
---
board/omap3/zoom2/Makefile | 8 ++-
board/omap3/zoom2/led.c | 125 +++++++++++++++++++++++++++++++++++++++++
board/omap3/zoom2/zoom2.c | 4 +-
include/configs/omap3_zoom2.h | 16 +++++
4 files changed, 149 insertions(+), 4 deletions(-)
create mode 100644 board/omap3/zoom2/led.c
diff --git a/board/omap3/zoom2/Makefile b/board/omap3/zoom2/Makefile
index d27990c..4a716da 100644
--- a/board/omap3/zoom2/Makefile
+++ b/board/omap3/zoom2/Makefile
@@ -25,10 +25,12 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := zoom2.o \
- debug_board.o \
- zoom2_serial.o
+COBJS-y := $(BOARD).o
+COBJS-y += debug_board.o
+COBJS-y += zoom2_serial.o
+COBJS-${CONFIG_STATUS_LED} += led.o
+COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/omap3/zoom2/led.c b/board/omap3/zoom2/led.c
new file mode 100644
index 0000000..6f25eb7
--- /dev/null
+++ b/board/omap3/zoom2/led.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix at windriver.com>
+ *
+ * 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 <status_led.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
+
+static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
+
+/*
+ * GPIO LEDs
+ * 173 red
+ * 154 blue
+ * 61 blue2
+ */
+void red_LED_off (void)
+{
+ /* red */
+ if (!omap_request_gpio(173)) {
+ omap_set_gpio_direction(173, 0);
+ omap_set_gpio_dataout(173, 0);
+ }
+ saved_state[STATUS_LED_RED] = STATUS_LED_OFF;
+}
+
+void blue_LED_off (void)
+{
+ /* blue */
+ if (!omap_request_gpio(154)) {
+ omap_set_gpio_direction(154, 0);
+ omap_set_gpio_dataout(154, 0);
+ }
+
+ /* blue 2 */
+ if (!omap_request_gpio(61)) {
+ omap_set_gpio_direction(61, 0);
+ omap_set_gpio_dataout(64, 0);
+ }
+ saved_state[STATUS_LED_BLUE] = STATUS_LED_OFF;
+}
+
+void red_LED_on (void)
+{
+ blue_LED_off ();
+
+ /* red */
+ if (!omap_request_gpio(173)) {
+ omap_set_gpio_direction(173, 0);
+ omap_set_gpio_dataout(173, 1);
+ }
+ saved_state[STATUS_LED_RED] = STATUS_LED_ON;
+}
+
+void blue_LED_on (void)
+{
+ red_LED_off ();
+
+ /* blue */
+ if (!omap_request_gpio(154)) {
+ omap_set_gpio_direction(154, 0);
+ omap_set_gpio_dataout(154, 1);
+ }
+
+ /* blue 2 */
+ if (!omap_request_gpio(61)) {
+ omap_set_gpio_direction(61, 0);
+ omap_set_gpio_dataout(64, 1);
+ }
+
+ saved_state[STATUS_LED_BLUE] = STATUS_LED_ON;
+}
+
+void __led_init (led_id_t mask, int state)
+{
+ __led_set (mask, state);
+}
+
+void __led_toggle (led_id_t mask)
+{
+ if (STATUS_LED_BLUE == mask) {
+ if (STATUS_LED_ON == saved_state[STATUS_LED_BLUE])
+ blue_LED_off ();
+ else
+ blue_LED_on ();
+ } else if (STATUS_LED_RED == mask) {
+ if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
+ red_LED_off ();
+ else
+ red_LED_on ();
+ }
+}
+
+void __led_set (led_id_t mask, int state)
+{
+ if (STATUS_LED_BLUE == mask) {
+ if (STATUS_LED_ON == state)
+ blue_LED_on ();
+ else
+ blue_LED_off ();
+ } else if (STATUS_LED_RED == mask) {
+ if (STATUS_LED_ON == state)
+ red_LED_on ();
+ else
+ red_LED_off ();
+ }
+}
diff --git a/board/omap3/zoom2/zoom2.c b/board/omap3/zoom2/zoom2.c
index a2a5b5a..f58c8e6 100644
--- a/board/omap3/zoom2/zoom2.c
+++ b/board/omap3/zoom2/zoom2.c
@@ -29,6 +29,9 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
@@ -78,7 +81,6 @@ int board_init (void)
#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
#endif
-
return 0;
}
diff --git a/include/configs/omap3_zoom2.h b/include/configs/omap3_zoom2.h
index 8f09dd8..459b994 100644
--- a/include/configs/omap3_zoom2.h
+++ b/include/configs/omap3_zoom2.h
@@ -93,6 +93,22 @@
#define CONFIG_OMAP3_MMC 1
#define CONFIG_DOS_PARTITION 1
+/* Status LED */
+#define CONFIG_STATUS_LED 1 /* Status LED enabled */
+#define CONFIG_BOARD_SPECIFIC_LED 1
+#define STATUS_LED_BLUE 0
+#define STATUS_LED_RED 1
+/* Blue */
+#define STATUS_LED_BIT STATUS_LED_BLUE
+#define STATUS_LED_STATE STATUS_LED_ON
+#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
+/* Red */
+#define STATUS_LED_BIT1 STATUS_LED_RED
+#define STATUS_LED_STATE1 STATUS_LED_OFF
+#define STATUS_LED_PERIOD1 (CONFIG_SYS_HZ / 2)
+/* Optional value */
+#define STATUS_LED_BOOT STATUS_LED_BIT
+
/* commands to include */
#include <config_cmd_default.h>
--
1.6.0.5
More information about the U-Boot
mailing list