X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fdrivers%2Fmisc%2Fgpio_led.c;fp=qemu%2Froms%2Fu-boot%2Fdrivers%2Fmisc%2Fgpio_led.c;h=3e95727d798309bf9125f5d0f722334174062b3b;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/drivers/misc/gpio_led.c b/qemu/roms/u-boot/drivers/misc/gpio_led.c
new file mode 100644
index 000000000..3e95727d7
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/misc/gpio_led.c
@@ -0,0 +1,53 @@
+/*
+ * Status LED driver based on GPIO access conventions of Linux
+ *
+ * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <status_led.h>
+#include <asm/gpio.h>
+
+#ifndef CONFIG_GPIO_LED_INVERTED_TABLE
+#define CONFIG_GPIO_LED_INVERTED_TABLE {}
+#endif
+
+static led_id_t gpio_led_inv[] = CONFIG_GPIO_LED_INVERTED_TABLE;
+
+static int gpio_led_gpio_value(led_id_t mask, int state)
+{
+	int i, gpio_value = (state == STATUS_LED_ON);
+
+	for (i = 0; i < ARRAY_SIZE(gpio_led_inv); i++) {
+		if (gpio_led_inv[i] == mask)
+			gpio_value = !gpio_value;
+	}
+
+	return gpio_value;
+}
+
+void __led_init(led_id_t mask, int state)
+{
+	int gpio_value;
+
+	if (gpio_request(mask, "gpio_led") != 0) {
+		printf("%s: failed requesting GPIO%lu!\n", __func__, mask);
+		return;
+	}
+
+	gpio_value = gpio_led_gpio_value(mask, state);
+	gpio_direction_output(mask, gpio_value);
+}
+
+void __led_set(led_id_t mask, int state)
+{
+	int gpio_value = gpio_led_gpio_value(mask, state);
+
+	gpio_set_value(mask, gpio_value);
+}
+
+void __led_toggle(led_id_t mask)
+{
+	gpio_set_value(mask, !gpio_get_value(mask));
+}