1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * AdLib FM card driver. |
4 | */ |
5 | |
6 | #include <linux/kernel.h> |
7 | #include <linux/module.h> |
8 | #include <linux/isa.h> |
9 | #include <sound/core.h> |
10 | #include <sound/initval.h> |
11 | #include <sound/opl3.h> |
12 | |
13 | #define CRD_NAME "AdLib FM" |
14 | #define DEV_NAME "adlib" |
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; |
22 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; |
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." ); |
31 | module_param_hw_array(port, long, ioport, NULL, 0444); |
32 | MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver." ); |
33 | |
34 | static int snd_adlib_match(struct device *dev, unsigned int n) |
35 | { |
36 | if (!enable[n]) |
37 | return 0; |
38 | |
39 | if (port[n] == SNDRV_AUTO_PORT) { |
40 | dev_err(dev, "please specify port\n" ); |
41 | return 0; |
42 | } |
43 | return 1; |
44 | } |
45 | |
46 | static int snd_adlib_probe(struct device *dev, unsigned int n) |
47 | { |
48 | struct snd_card *card; |
49 | struct snd_opl3 *opl3; |
50 | int error; |
51 | |
52 | error = snd_devm_card_new(parent: dev, idx: index[n], xid: id[n], THIS_MODULE, extra_size: 0, card_ret: &card); |
53 | if (error < 0) { |
54 | dev_err(dev, "could not create card\n" ); |
55 | return error; |
56 | } |
57 | |
58 | card->private_data = devm_request_region(dev, port[n], 4, CRD_NAME); |
59 | if (!card->private_data) { |
60 | dev_err(dev, "could not grab ports\n" ); |
61 | return -EBUSY; |
62 | } |
63 | |
64 | strcpy(p: card->driver, DEV_NAME); |
65 | strcpy(p: card->shortname, CRD_NAME); |
66 | sprintf(buf: card->longname, CRD_NAME " at %#lx" , port[n]); |
67 | |
68 | error = snd_opl3_create(card, l_port: port[n], r_port: port[n] + 2, OPL3_HW_AUTO, integrated: 1, opl3: &opl3); |
69 | if (error < 0) { |
70 | dev_err(dev, "could not create OPL\n" ); |
71 | return error; |
72 | } |
73 | |
74 | error = snd_opl3_hwdep_new(opl3, device: 0, seq_device: 0, NULL); |
75 | if (error < 0) { |
76 | dev_err(dev, "could not create FM\n" ); |
77 | return error; |
78 | } |
79 | |
80 | error = snd_card_register(card); |
81 | if (error < 0) { |
82 | dev_err(dev, "could not register card\n" ); |
83 | return error; |
84 | } |
85 | |
86 | dev_set_drvdata(dev, data: card); |
87 | return 0; |
88 | } |
89 | |
90 | static struct isa_driver snd_adlib_driver = { |
91 | .match = snd_adlib_match, |
92 | .probe = snd_adlib_probe, |
93 | |
94 | .driver = { |
95 | .name = DEV_NAME |
96 | } |
97 | }; |
98 | |
99 | module_isa_driver(snd_adlib_driver, SNDRV_CARDS); |
100 | |