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