ZOOM2 Add led support.

This patch controls the large LED on the top left of the zoom2.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>

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))
 

board/omap3/zoom2/led.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@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 ();
+	}
+}

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;
 }
 

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>