Nios II - Add Altera EP1C20, EP1S10 and EP1S40 boards

  Patch by Scott McNutt, 08 Jun 2006

1 files changed, 62 insertions, 0 deletions

diff --git a/board/altera/common/epled.c b/board/altera/common/epled.c
new file mode 100644
index 0000000..c75fe8c
--- /dev/null
+++ b/board/altera/common/epled.c
@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <asm/io.h>
+#include <nios2-io.h>
+#include <status_led.h>
+
+/* The LED port is configured as output only, so we
+ * must track the state manually.
+ */
+static led_id_t val = 0;
+
+void __led_init (led_id_t mask, int state)
+{
+	nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
+
+	if (state == STATUS_LED_ON)
+		val &= ~mask;
+	else
+		val |= mask;
+	writel (&pio->data, val);
+}
+
+void __led_set (led_id_t mask, int state)
+{
+	nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
+
+	if (state == STATUS_LED_ON)
+		val &= ~mask;
+	else
+		val |= mask;
+	writel (&pio->data, val);
+}
+
+void __led_toggle (led_id_t mask)
+{
+	nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
+
+	val ^= mask;
+	writel (&pio->data, val);
+}