[U-Boot] [PATCH 2/2] ZOOM2 Add led support.
Tom Rix
Tom.Rix at windriver.com
Sat May 16 20:49:38 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 | 129 +++++++++++++++++++++++++++++++++++++++++
board/omap3/zoom2/zoom2.c | 4 +-
include/configs/omap3_zoom2.h | 16 +++++
4 files changed, 153 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..2feafbe 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..4e14c58
--- /dev/null
+++ b/board/omap3/zoom2/led.c
@@ -0,0 +1,129 @@
+/*
+ * 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
+ */
+#define ZOOM2_LED_RED 173
+#define ZOOM2_LED_BLUE 154
+#define ZOOM2_LED_BLUE2 61
+
+void red_LED_off (void)
+{
+ /* red */
+ if (!omap_request_gpio(ZOOM2_LED_RED)) {
+ omap_set_gpio_direction(ZOOM2_LED_RED, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_RED, 0);
+ }
+ saved_state[STATUS_LED_RED] = STATUS_LED_OFF;
+}
+
+void blue_LED_off (void)
+{
+ /* blue */
+ if (!omap_request_gpio(ZOOM2_LED_BLUE)) {
+ omap_set_gpio_direction(ZOOM2_LED_BLUE, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_BLUE, 0);
+ }
+
+ /* blue 2 */
+ if (!omap_request_gpio(ZOOM2_LED_BLUE2)) {
+ omap_set_gpio_direction(ZOOM2_LED_BLUE2, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_BLUE2, 0);
+ }
+ saved_state[STATUS_LED_BLUE] = STATUS_LED_OFF;
+}
+
+void red_LED_on (void)
+{
+ blue_LED_off ();
+
+ /* red */
+ if (!omap_request_gpio(ZOOM2_LED_RED)) {
+ omap_set_gpio_direction(ZOOM2_LED_RED, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_RED, 1);
+ }
+ saved_state[STATUS_LED_RED] = STATUS_LED_ON;
+}
+
+void blue_LED_on (void)
+{
+ red_LED_off ();
+
+ /* blue */
+ if (!omap_request_gpio(ZOOM2_LED_BLUE)) {
+ omap_set_gpio_direction(ZOOM2_LED_BLUE, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_BLUE, 1);
+ }
+
+ /* blue 2 */
+ if (!omap_request_gpio(ZOOM2_LED_BLUE2)) {
+ omap_set_gpio_direction(ZOOM2_LED_BLUE2, 0);
+ omap_set_gpio_dataout(ZOOM2_LED_BLUE2, 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 83e02f6..e5c248d 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>
@@ -86,7 +89,6 @@ 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 db35d70..e257419 100644
--- a/include/configs/omap3_zoom2.h
+++ b/include/configs/omap3_zoom2.h
@@ -99,6 +99,22 @@
#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
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