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Samuel Ortize97e2dd2007-07-21 19:07:33 -07001/*
2 * IR port driver for the Cirrus Logic EP7211 processor.
3 *
4 * Copyright 2001, Blue Mug Inc. All rights reserved.
5 * Copyright 2007, Samuel Ortiz <samuel@sortiz.org>
6 */
7#include <linux/module.h>
8#include <linux/delay.h>
9#include <linux/tty.h>
10#include <linux/init.h>
11#include <linux/spinlock.h>
12
13#include <net/irda/irda.h>
14#include <net/irda/irda_device.h>
15
16#include <asm/io.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010017#include <mach/hardware.h>
Samuel Ortize97e2dd2007-07-21 19:07:33 -070018
19#include "sir-dev.h"
20
21#define MIN_DELAY 25 /* 15 us, but wait a little more to be sure */
22#define MAX_DELAY 10000 /* 1 ms */
23
24static int ep7211_open(struct sir_dev *dev);
25static int ep7211_close(struct sir_dev *dev);
26static int ep7211_change_speed(struct sir_dev *dev, unsigned speed);
27static int ep7211_reset(struct sir_dev *dev);
28
29static struct dongle_driver ep7211 = {
30 .owner = THIS_MODULE,
31 .driver_name = "EP7211 IR driver",
32 .type = IRDA_EP7211_DONGLE,
33 .open = ep7211_open,
34 .close = ep7211_close,
35 .reset = ep7211_reset,
36 .set_speed = ep7211_change_speed,
37};
38
39static int __init ep7211_sir_init(void)
40{
41 return irda_register_dongle(&ep7211);
42}
43
44static void __exit ep7211_sir_cleanup(void)
45{
46 irda_unregister_dongle(&ep7211);
47}
48
49static int ep7211_open(struct sir_dev *dev)
50{
51 unsigned int syscon;
52
53 /* Turn on the SIR encoder. */
54 syscon = clps_readl(SYSCON1);
55 syscon |= SYSCON1_SIREN;
56 clps_writel(syscon, SYSCON1);
57
58 return 0;
59}
60
61static int ep7211_close(struct sir_dev *dev)
62{
63 unsigned int syscon;
64
65 /* Turn off the SIR encoder. */
66 syscon = clps_readl(SYSCON1);
67 syscon &= ~SYSCON1_SIREN;
68 clps_writel(syscon, SYSCON1);
69
70 return 0;
71}
72
73static int ep7211_change_speed(struct sir_dev *dev, unsigned speed)
74{
75 return 0;
76}
77
78static int ep7211_reset(struct sir_dev *dev)
79{
80 return 0;
81}
82
83MODULE_AUTHOR("Samuel Ortiz <samuel@sortiz.org>");
84MODULE_DESCRIPTION("EP7211 IR dongle driver");
85MODULE_LICENSE("GPL");
86MODULE_ALIAS("irda-dongle-13"); /* IRDA_EP7211_DONGLE */
87
88module_init(ep7211_sir_init);
89module_exit(ep7211_sir_cleanup);