Release 4.11 drivers/media/radio/radio-rtrack2.c

/*
 * RadioTrack II driver
 * Copyright 1998 Ben Pfaff
 *
 * Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
 * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk>
 * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
 *
 * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
 *
 * Fully tested with actual hardware and the v4l2-compliance tool.
 */

#include <linux/module.h>	/* Modules                      */
#include <linux/init.h>		/* Initdata                     */
#include <linux/ioport.h>	/* request_region               */
#include <linux/delay.h>	/* udelay                       */
#include <linux/videodev2.h>	/* kernel radio structs         */
#include <linux/mutex.h>
#include <linux/io.h>		/* outb, outb_p                 */
#include <linux/slab.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include "radio-isa.h"

MODULE_AUTHOR("Ben Pfaff");
MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.1.99");

#ifndef CONFIG_RADIO_RTRACK2_PORT

#define CONFIG_RADIO_RTRACK2_PORT -1
#endif


#define RTRACK2_MAX 2


static int io[RTRACK2_MAX] = { [0] = CONFIG_RADIO_RTRACK2_PORT,
			      [1 ... (RTRACK2_MAX - 1)] = -1 };

static int radio_nr[RTRACK2_MAX] = { [0 ... (RTRACK2_MAX - 1)] = -1 };

module_param_array(io, int, NULL, 0444);
MODULE_PARM_DESC(io, "I/O addresses of the RadioTrack card (0x20f or 0x30f)");
module_param_array(radio_nr, int, NULL, 0444);
MODULE_PARM_DESC(radio_nr, "Radio device numbers");



static struct radio_isa_card *rtrack2_alloc(void)
{
	return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
}

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Hans Verkuil
12
54.55%
1
33.33%
Linus Torvalds (pre-git)
10
45.45%
2
66.67%
Total
22
100.00%
3
100.00%



static void zero(struct radio_isa_card *isa)
{
	outb_p(1, isa->io);
	outb_p(3, isa->io);
	outb_p(1, isa->io);
}

Contributors
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Linus Torvalds (pre-git)
28
73.68%
1
33.33%
Hans Verkuil
10
26.32%
2
66.67%
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38
100.00%
3
100.00%



static void one(struct radio_isa_card *isa)
{
	outb_p(5, isa->io);
	outb_p(7, isa->io);
	outb_p(5, isa->io);
}

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Linus Torvalds (pre-git)
28
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1
33.33%
Hans Verkuil
10
26.32%
2
66.67%
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38
100.00%
3
100.00%



static int rtrack2_s_frequency(struct radio_isa_card *isa, u32 freq)
{
	int i;

	freq = freq / 200 + 856;

	outb_p(0xc8, isa->io);
	outb_p(0xc9, isa->io);
	outb_p(0xc9, isa->io);

	for (i = 0; i < 10; i++)
		zero(isa);

	for (i = 14; i >= 0; i--)
		if (freq & (1 << i))
			one(isa);
		else
			zero(isa);

	outb_p(0xc8, isa->io);
	outb_p(v4l2_ctrl_g_ctrl(isa->mute), isa->io);
	return 0;
}

Contributors
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Linus Torvalds (pre-git)
100
76.92%
1
25.00%
Hans Verkuil
30
23.08%
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75.00%
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130
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static u32 rtrack2_g_signal(struct radio_isa_card *isa)
{
	/* bit set = no signal present  */
	return (inb(isa->io) & 2) ? 0 : 0xffff;
}

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Hans Verkuil
18
64.29%
2
33.33%
Linus Torvalds (pre-git)
7
25.00%
2
33.33%
Douglas Schilling Landgraf
2
7.14%
1
16.67%
Gerd Knorr
1
3.57%
1
16.67%
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28
100.00%
6
100.00%



static int rtrack2_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
{
	outb(mute, isa->io);
	return 0;
}

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Douglas Schilling Landgraf
14
48.28%
1
25.00%
Hans Verkuil
13
44.83%
2
50.00%
Mauro Carvalho Chehab
2
6.90%
1
25.00%
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29
100.00%
4
100.00%


static const struct radio_isa_ops rtrack2_ops = {
	.alloc = rtrack2_alloc,
	.s_mute_volume = rtrack2_s_mute_volume,
	.s_frequency = rtrack2_s_frequency,
	.g_signal = rtrack2_g_signal,
};


static const int rtrack2_ioports[] = { 0x20f, 0x30f };


static struct radio_isa_driver rtrack2_driver = {
	.driver = {
		.match		= radio_isa_match,
		.probe		= radio_isa_probe,
		.remove		= radio_isa_remove,
		.driver		= {
			.name	= "radio-rtrack2",
                },
        },
	.io_params = io,
	.radio_nr_params = radio_nr,
	.io_ports = rtrack2_ioports,
	.num_of_io_ports = ARRAY_SIZE(rtrack2_ioports),
	.region_size = 4,
	.card = "AIMSlab RadioTrack II",
	.ops = &rtrack2_ops,
	.has_stereo = true,
};



static int __init rtrack2_init(void)
{
	return isa_register_driver(&rtrack2_driver.driver, RTRACK2_MAX);
}

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Linus Torvalds (pre-git)
11
55.00%
3
60.00%
Hans Verkuil
9
45.00%
2
40.00%
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20
100.00%
5
100.00%



static void __exit rtrack2_exit(void)
{
	isa_unregister_driver(&rtrack2_driver.driver);
}

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Linus Torvalds (pre-git)
10
58.82%
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50.00%
Hans Verkuil
7
41.18%
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50.00%
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4
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module_init(rtrack2_init);

module_exit(rtrack2_exit);
Overall Contributors
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Hans Verkuil
283
46.24%
6
28.57%
Linus Torvalds (pre-git)
249
40.69%
6
28.57%
Douglas Schilling Landgraf
52
8.50%
2
9.52%
Mauro Carvalho Chehab
9
1.47%
3
14.29%
Linus Torvalds
7
1.14%
1
4.76%
Gerd Knorr
6
0.98%
1
4.76%
Art Haas
5
0.82%
1
4.76%
Peter Osterlund
1
0.16%
1
4.76%
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612
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21
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Directory: drivers/media/radio

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