From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 drivers/net/irda/ep7211_ir.c | 122 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 drivers/net/irda/ep7211_ir.c

(limited to 'drivers/net/irda/ep7211_ir.c')

diff --git a/drivers/net/irda/ep7211_ir.c b/drivers/net/irda/ep7211_ir.c
new file mode 100644
index 000000000000..31896262d21c
--- /dev/null
+++ b/drivers/net/irda/ep7211_ir.c
@@ -0,0 +1,122 @@
+/*
+ * IR port driver for the Cirrus Logic EP7211 processor.
+ *
+ * Copyright 2001, Blue Mug Inc.  All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#define MIN_DELAY 25      /* 15 us, but wait a little more to be sure */
+#define MAX_DELAY 10000   /* 1 ms */
+
+static void ep7211_ir_open(dongle_t *self, struct qos_info *qos);
+static void ep7211_ir_close(dongle_t *self);
+static int  ep7211_ir_change_speed(struct irda_task *task);
+static int  ep7211_ir_reset(struct irda_task *task);
+
+static struct dongle_reg dongle = {
+	.type = IRDA_EP7211_IR,
+	.open = ep7211_ir_open,
+	.close = ep7211_ir_close,
+	.reset = ep7211_ir_reset,
+	.change_speed = ep7211_ir_change_speed,
+	.owner = THIS_MODULE,
+};
+
+static void ep7211_ir_open(dongle_t *self, struct qos_info *qos)
+{
+	unsigned int syscon1, flags;
+
+	save_flags(flags); cli();
+
+	/* Turn on the SIR encoder. */
+	syscon1 = clps_readl(SYSCON1);
+	syscon1 |= SYSCON1_SIREN;
+	clps_writel(syscon1, SYSCON1);
+
+	/* XXX: We should disable modem status interrupts on the first
+		UART (interrupt #14). */
+
+	restore_flags(flags);
+}
+
+static void ep7211_ir_close(dongle_t *self)
+{
+	unsigned int syscon1, flags;
+
+	save_flags(flags); cli();
+
+	/* Turn off the SIR encoder. */
+	syscon1 = clps_readl(SYSCON1);
+	syscon1 &= ~SYSCON1_SIREN;
+	clps_writel(syscon1, SYSCON1);
+
+	/* XXX: If we've disabled the modem status interrupts, we should
+		reset them back to their original state. */
+
+	restore_flags(flags);
+}
+
+/*
+ * Function ep7211_ir_change_speed (task)
+ *
+ *    Change speed of the EP7211 I/R port. We don't really have to do anything
+ *    for the EP7211 as long as the rate is being changed at the serial port
+ *    level.
+ */
+static int ep7211_ir_change_speed(struct irda_task *task)
+{
+	irda_task_next_state(task, IRDA_TASK_DONE);
+	return 0;
+}
+
+/*
+ * Function ep7211_ir_reset (task)
+ *
+ *      Reset the EP7211 I/R. We don't really have to do anything.
+ *
+ */
+static int ep7211_ir_reset(struct irda_task *task)
+{
+	irda_task_next_state(task, IRDA_TASK_DONE);
+	return 0;
+}
+
+/*
+ * Function ep7211_ir_init(void)
+ *
+ *    Initialize EP7211 I/R module
+ *
+ */
+static int __init ep7211_ir_init(void)
+{
+	return irda_device_register_dongle(&dongle);
+}
+
+/*
+ * Function ep7211_ir_cleanup(void)
+ *
+ *    Cleanup EP7211 I/R module
+ *
+ */
+static void __exit ep7211_ir_cleanup(void)
+{
+	irda_device_unregister_dongle(&dongle);
+}
+
+MODULE_AUTHOR("Jon McClintock <jonm@bluemug.com>");
+MODULE_DESCRIPTION("EP7211 I/R driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("irda-dongle-8"); /* IRDA_EP7211_IR */
+		
+module_init(ep7211_ir_init);
+module_exit(ep7211_ir_cleanup);
-- 
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