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Commit | Line | Data |
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8bd7ef5a HV |
1 | /* |
2 | * RadioTrack II driver | |
3 | * Copyright 1998 Ben Pfaff | |
4286c6f6 | 4 | * |
1da177e4 | 5 | * Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood |
d9b01449 | 6 | * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk> |
1da177e4 LT |
7 | * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org> |
8 | * | |
8bd7ef5a | 9 | * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com> |
f8c559f8 | 10 | * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org> |
4ca28661 HV |
11 | * |
12 | * Fully tested with actual hardware and the v4l2-compliance tool. | |
1da177e4 LT |
13 | */ |
14 | ||
6e6a8b5a | 15 | #include <linux/module.h> /* Modules */ |
1da177e4 | 16 | #include <linux/init.h> /* Initdata */ |
fb911ee8 | 17 | #include <linux/ioport.h> /* request_region */ |
1da177e4 | 18 | #include <linux/delay.h> /* udelay */ |
f8c559f8 | 19 | #include <linux/videodev2.h> /* kernel radio structs */ |
922c78e9 | 20 | #include <linux/mutex.h> |
922c78e9 | 21 | #include <linux/io.h> /* outb, outb_p */ |
a875431d | 22 | #include <linux/slab.h> |
922c78e9 | 23 | #include <media/v4l2-device.h> |
35ea11ff | 24 | #include <media/v4l2-ioctl.h> |
8bd7ef5a | 25 | #include "radio-isa.h" |
1da177e4 | 26 | |
922c78e9 HV |
27 | MODULE_AUTHOR("Ben Pfaff"); |
28 | MODULE_DESCRIPTION("A driver for the RadioTrack II radio card."); | |
29 | MODULE_LICENSE("GPL"); | |
8bd7ef5a | 30 | MODULE_VERSION("0.1.99"); |
f8c559f8 | 31 | |
1da177e4 LT |
32 | #ifndef CONFIG_RADIO_RTRACK2_PORT |
33 | #define CONFIG_RADIO_RTRACK2_PORT -1 | |
34 | #endif | |
35 | ||
8bd7ef5a | 36 | #define RTRACK2_MAX 2 |
1da177e4 | 37 | |
8bd7ef5a HV |
38 | static int io[RTRACK2_MAX] = { [0] = CONFIG_RADIO_RTRACK2_PORT, |
39 | [1 ... (RTRACK2_MAX - 1)] = -1 }; | |
40 | static int radio_nr[RTRACK2_MAX] = { [0 ... (RTRACK2_MAX - 1)] = -1 }; | |
922c78e9 | 41 | |
8bd7ef5a HV |
42 | module_param_array(io, int, NULL, 0444); |
43 | MODULE_PARM_DESC(io, "I/O addresses of the RadioTrack card (0x20f or 0x30f)"); | |
44 | module_param_array(radio_nr, int, NULL, 0444); | |
45 | MODULE_PARM_DESC(radio_nr, "Radio device numbers"); | |
1da177e4 | 46 | |
8bd7ef5a | 47 | static struct radio_isa_card *rtrack2_alloc(void) |
1da177e4 | 48 | { |
8bd7ef5a | 49 | return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL); |
1da177e4 LT |
50 | } |
51 | ||
8bd7ef5a | 52 | static void zero(struct radio_isa_card *isa) |
1da177e4 | 53 | { |
8bd7ef5a HV |
54 | outb_p(1, isa->io); |
55 | outb_p(3, isa->io); | |
56 | outb_p(1, isa->io); | |
1da177e4 LT |
57 | } |
58 | ||
8bd7ef5a | 59 | static void one(struct radio_isa_card *isa) |
1da177e4 | 60 | { |
8bd7ef5a HV |
61 | outb_p(5, isa->io); |
62 | outb_p(7, isa->io); | |
63 | outb_p(5, isa->io); | |
1da177e4 LT |
64 | } |
65 | ||
8bd7ef5a | 66 | static int rtrack2_s_frequency(struct radio_isa_card *isa, u32 freq) |
1da177e4 LT |
67 | { |
68 | int i; | |
69 | ||
70 | freq = freq / 200 + 856; | |
4286c6f6 | 71 | |
8bd7ef5a HV |
72 | outb_p(0xc8, isa->io); |
73 | outb_p(0xc9, isa->io); | |
74 | outb_p(0xc9, isa->io); | |
1da177e4 LT |
75 | |
76 | for (i = 0; i < 10; i++) | |
8bd7ef5a | 77 | zero(isa); |
1da177e4 LT |
78 | |
79 | for (i = 14; i >= 0; i--) | |
80 | if (freq & (1 << i)) | |
8bd7ef5a | 81 | one(isa); |
1da177e4 | 82 | else |
8bd7ef5a | 83 | zero(isa); |
25f30389 | 84 | |
8bd7ef5a | 85 | outb_p(0xc8, isa->io); |
4ca28661 | 86 | outb_p(v4l2_ctrl_g_ctrl(isa->mute), isa->io); |
25f30389 DL |
87 | return 0; |
88 | } | |
f8c559f8 | 89 | |
8bd7ef5a | 90 | static u32 rtrack2_g_signal(struct radio_isa_card *isa) |
25f30389 | 91 | { |
8bd7ef5a HV |
92 | /* bit set = no signal present */ |
93 | return (inb(isa->io) & 2) ? 0 : 0xffff; | |
25f30389 | 94 | } |
f8c559f8 | 95 | |
8bd7ef5a | 96 | static int rtrack2_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol) |
25f30389 | 97 | { |
8bd7ef5a | 98 | outb(mute, isa->io); |
25f30389 DL |
99 | return 0; |
100 | } | |
f8c559f8 | 101 | |
8bd7ef5a HV |
102 | static const struct radio_isa_ops rtrack2_ops = { |
103 | .alloc = rtrack2_alloc, | |
104 | .s_mute_volume = rtrack2_s_mute_volume, | |
105 | .s_frequency = rtrack2_s_frequency, | |
106 | .g_signal = rtrack2_g_signal, | |
1da177e4 LT |
107 | }; |
108 | ||
8bd7ef5a HV |
109 | static const int rtrack2_ioports[] = { 0x20f, 0x30f }; |
110 | ||
111 | static struct radio_isa_driver rtrack2_driver = { | |
112 | .driver = { | |
113 | .match = radio_isa_match, | |
114 | .probe = radio_isa_probe, | |
115 | .remove = radio_isa_remove, | |
116 | .driver = { | |
117 | .name = "radio-rtrack2", | |
118 | }, | |
119 | }, | |
120 | .io_params = io, | |
121 | .radio_nr_params = radio_nr, | |
122 | .io_ports = rtrack2_ioports, | |
123 | .num_of_io_ports = ARRAY_SIZE(rtrack2_ioports), | |
124 | .region_size = 4, | |
125 | .card = "AIMSlab RadioTrack II", | |
126 | .ops = &rtrack2_ops, | |
127 | .has_stereo = true, | |
1da177e4 LT |
128 | }; |
129 | ||
130 | static int __init rtrack2_init(void) | |
131 | { | |
8bd7ef5a | 132 | return isa_register_driver(&rtrack2_driver.driver, RTRACK2_MAX); |
1da177e4 LT |
133 | } |
134 | ||
922c78e9 | 135 | static void __exit rtrack2_exit(void) |
1da177e4 | 136 | { |
8bd7ef5a | 137 | isa_unregister_driver(&rtrack2_driver.driver); |
1da177e4 LT |
138 | } |
139 | ||
140 | module_init(rtrack2_init); | |
922c78e9 | 141 | module_exit(rtrack2_exit); |