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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
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2 | /* |
3 | * AdLib FM card driver. | |
4 | */ | |
5 | ||
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6 | #include <linux/kernel.h> |
7 | #include <linux/module.h> | |
ab7942b2 | 8 | #include <linux/isa.h> |
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9 | #include <sound/core.h> |
10 | #include <sound/initval.h> | |
11 | #include <sound/opl3.h> | |
12 | ||
13 | #define CRD_NAME "AdLib FM" | |
ab7942b2 | 14 | #define DEV_NAME "adlib" |
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15 | |
16 | MODULE_DESCRIPTION(CRD_NAME); | |
17 | MODULE_AUTHOR("Rene Herman"); | |
18 | MODULE_LICENSE("GPL"); | |
19 | ||
20 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; | |
21 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; | |
a67ff6a5 | 22 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; |
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23 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
24 | ||
25 | module_param_array(index, int, NULL, 0444); | |
26 | MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); | |
27 | module_param_array(id, charp, NULL, 0444); | |
28 | MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); | |
29 | module_param_array(enable, bool, NULL, 0444); | |
30 | MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); | |
e992ef57 | 31 | module_param_hw_array(port, long, ioport, NULL, 0444); |
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32 | MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); |
33 | ||
1bff292e | 34 | static int snd_adlib_match(struct device *dev, unsigned int n) |
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35 | { |
36 | if (!enable[n]) | |
37 | return 0; | |
38 | ||
39 | if (port[n] == SNDRV_AUTO_PORT) { | |
0418ff0c | 40 | dev_err(dev, "please specify port\n"); |
ab7942b2 RH |
41 | return 0; |
42 | } | |
43 | return 1; | |
44 | } | |
cf40a310 | 45 | |
1bff292e | 46 | static int snd_adlib_probe(struct device *dev, unsigned int n) |
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47 | { |
48 | struct snd_card *card; | |
49 | struct snd_opl3 *opl3; | |
ab7942b2 | 50 | int error; |
cf40a310 | 51 | |
5d50e348 | 52 | error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card); |
c95eadd2 | 53 | if (error < 0) { |
0418ff0c | 54 | dev_err(dev, "could not create card\n"); |
c95eadd2 | 55 | return error; |
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56 | } |
57 | ||
5d50e348 | 58 | card->private_data = devm_request_region(dev, port[n], 4, CRD_NAME); |
cf40a310 | 59 | if (!card->private_data) { |
0418ff0c | 60 | dev_err(dev, "could not grab ports\n"); |
5d50e348 | 61 | return -EBUSY; |
cf40a310 | 62 | } |
cf40a310 | 63 | |
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64 | strcpy(card->driver, DEV_NAME); |
65 | strcpy(card->shortname, CRD_NAME); | |
66 | sprintf(card->longname, CRD_NAME " at %#lx", port[n]); | |
67 | ||
68 | error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3); | |
cf40a310 | 69 | if (error < 0) { |
0418ff0c | 70 | dev_err(dev, "could not create OPL\n"); |
5d50e348 | 71 | return error; |
cf40a310 RH |
72 | } |
73 | ||
74 | error = snd_opl3_hwdep_new(opl3, 0, 0, NULL); | |
75 | if (error < 0) { | |
0418ff0c | 76 | dev_err(dev, "could not create FM\n"); |
5d50e348 | 77 | return error; |
cf40a310 RH |
78 | } |
79 | ||
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80 | error = snd_card_register(card); |
81 | if (error < 0) { | |
0418ff0c | 82 | dev_err(dev, "could not register card\n"); |
5d50e348 | 83 | return error; |
cf40a310 RH |
84 | } |
85 | ||
ab7942b2 | 86 | dev_set_drvdata(dev, card); |
cf40a310 | 87 | return 0; |
cf40a310 RH |
88 | } |
89 | ||
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90 | static struct isa_driver snd_adlib_driver = { |
91 | .match = snd_adlib_match, | |
cf40a310 | 92 | .probe = snd_adlib_probe, |
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93 | |
94 | .driver = { | |
ab7942b2 | 95 | .name = DEV_NAME |
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96 | } |
97 | }; | |
98 | ||
1524c719 | 99 | module_isa_driver(snd_adlib_driver, SNDRV_CARDS); |