Root/
1 | /* |
2 | * AdLib FM card driver. |
3 | */ |
4 | |
5 | #include <linux/kernel.h> |
6 | #include <linux/module.h> |
7 | #include <linux/isa.h> |
8 | #include <sound/core.h> |
9 | #include <sound/initval.h> |
10 | #include <sound/opl3.h> |
11 | |
12 | #define CRD_NAME "AdLib FM" |
13 | #define DEV_NAME "adlib" |
14 | |
15 | MODULE_DESCRIPTION(CRD_NAME); |
16 | MODULE_AUTHOR("Rene Herman"); |
17 | MODULE_LICENSE("GPL"); |
18 | |
19 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
20 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
21 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; |
22 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
23 | |
24 | module_param_array(index, int, NULL, 0444); |
25 | MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); |
26 | module_param_array(id, charp, NULL, 0444); |
27 | MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); |
28 | module_param_array(enable, bool, NULL, 0444); |
29 | MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); |
30 | module_param_array(port, long, NULL, 0444); |
31 | MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); |
32 | |
33 | static int snd_adlib_match(struct device *dev, unsigned int n) |
34 | { |
35 | if (!enable[n]) |
36 | return 0; |
37 | |
38 | if (port[n] == SNDRV_AUTO_PORT) { |
39 | dev_err(dev, "please specify port\n"); |
40 | return 0; |
41 | } |
42 | return 1; |
43 | } |
44 | |
45 | static void snd_adlib_free(struct snd_card *card) |
46 | { |
47 | release_and_free_resource(card->private_data); |
48 | } |
49 | |
50 | static int snd_adlib_probe(struct device *dev, unsigned int n) |
51 | { |
52 | struct snd_card *card; |
53 | struct snd_opl3 *opl3; |
54 | int error; |
55 | |
56 | error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); |
57 | if (error < 0) { |
58 | dev_err(dev, "could not create card\n"); |
59 | return error; |
60 | } |
61 | |
62 | card->private_data = request_region(port[n], 4, CRD_NAME); |
63 | if (!card->private_data) { |
64 | dev_err(dev, "could not grab ports\n"); |
65 | error = -EBUSY; |
66 | goto out; |
67 | } |
68 | card->private_free = snd_adlib_free; |
69 | |
70 | strcpy(card->driver, DEV_NAME); |
71 | strcpy(card->shortname, CRD_NAME); |
72 | sprintf(card->longname, CRD_NAME " at %#lx", port[n]); |
73 | |
74 | error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3); |
75 | if (error < 0) { |
76 | dev_err(dev, "could not create OPL\n"); |
77 | goto out; |
78 | } |
79 | |
80 | error = snd_opl3_hwdep_new(opl3, 0, 0, NULL); |
81 | if (error < 0) { |
82 | dev_err(dev, "could not create FM\n"); |
83 | goto out; |
84 | } |
85 | |
86 | error = snd_card_register(card); |
87 | if (error < 0) { |
88 | dev_err(dev, "could not register card\n"); |
89 | goto out; |
90 | } |
91 | |
92 | dev_set_drvdata(dev, card); |
93 | return 0; |
94 | |
95 | out: snd_card_free(card); |
96 | return error; |
97 | } |
98 | |
99 | static int snd_adlib_remove(struct device *dev, unsigned int n) |
100 | { |
101 | snd_card_free(dev_get_drvdata(dev)); |
102 | return 0; |
103 | } |
104 | |
105 | static struct isa_driver snd_adlib_driver = { |
106 | .match = snd_adlib_match, |
107 | .probe = snd_adlib_probe, |
108 | .remove = snd_adlib_remove, |
109 | |
110 | .driver = { |
111 | .name = DEV_NAME |
112 | } |
113 | }; |
114 | |
115 | static int __init alsa_card_adlib_init(void) |
116 | { |
117 | return isa_register_driver(&snd_adlib_driver, SNDRV_CARDS); |
118 | } |
119 | |
120 | static void __exit alsa_card_adlib_exit(void) |
121 | { |
122 | isa_unregister_driver(&snd_adlib_driver); |
123 | } |
124 | |
125 | module_init(alsa_card_adlib_init); |
126 | module_exit(alsa_card_adlib_exit); |
127 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9