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/*
* IR port driver for the Cirrus Logic EP7211 processor.
*
* Copyright 2001, Blue Mug Inc. All rights reserved.
* Copyright 2007, Samuel Ortiz <samuel@sortiz.org>
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/tty.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <net/irda/irda.h>
#include <net/irda/irda_device.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include "sir-dev.h"
#define MIN_DELAY 25 /* 15 us, but wait a little more to be sure */
#define MAX_DELAY 10000 /* 1 ms */
static int ep7211_open(struct sir_dev *dev);
static int ep7211_close(struct sir_dev *dev);
static int ep7211_change_speed(struct sir_dev *dev, unsigned speed);
static int ep7211_reset(struct sir_dev *dev);
static struct dongle_driver ep7211 = {
.owner = THIS_MODULE,
.driver_name = "EP7211 IR driver",
.type = IRDA_EP7211_DONGLE,
.open = ep7211_open,
.close = ep7211_close,
.reset = ep7211_reset,
.set_speed = ep7211_change_speed,
};
static int __init ep7211_sir_init(void)
{
return irda_register_dongle(&ep7211);
}
static void __exit ep7211_sir_cleanup(void)
{
irda_unregister_dongle(&ep7211);
}
static int ep7211_open(struct sir_dev *dev)
{
unsigned int syscon;
/* Turn on the SIR encoder. */
syscon = clps_readl(SYSCON1);
syscon |= SYSCON1_SIREN;
clps_writel(syscon, SYSCON1);
return 0;
}
static int ep7211_close(struct sir_dev *dev)
{
unsigned int syscon;
/* Turn off the SIR encoder. */
syscon = clps_readl(SYSCON1);
syscon &= ~SYSCON1_SIREN;
clps_writel(syscon, SYSCON1);
return 0;
}
static int ep7211_change_speed(struct sir_dev *dev, unsigned speed)
{
return 0;
}
static int ep7211_reset(struct sir_dev *dev)
{
return 0;
}
MODULE_AUTHOR("Samuel Ortiz <samuel@sortiz.org>");
MODULE_DESCRIPTION("EP7211 IR dongle driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("irda-dongle-13"); /* IRDA_EP7211_DONGLE */
module_init(ep7211_sir_init);
module_exit(ep7211_sir_cleanup);
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