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>

1 files changed, 129 insertions, 0 deletions

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@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 ();
+	}
+}