1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * AdLib FM card driver.
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include <linux/kernel.h>
7*4882a593Smuzhiyun #include <linux/module.h>
8*4882a593Smuzhiyun #include <linux/isa.h>
9*4882a593Smuzhiyun #include <sound/core.h>
10*4882a593Smuzhiyun #include <sound/initval.h>
11*4882a593Smuzhiyun #include <sound/opl3.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #define CRD_NAME "AdLib FM"
14*4882a593Smuzhiyun #define DEV_NAME "adlib"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun MODULE_DESCRIPTION(CRD_NAME);
17*4882a593Smuzhiyun MODULE_AUTHOR("Rene Herman");
18*4882a593Smuzhiyun MODULE_LICENSE("GPL");
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
21*4882a593Smuzhiyun static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
22*4882a593Smuzhiyun static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
23*4882a593Smuzhiyun static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun module_param_array(index, int, NULL, 0444);
26*4882a593Smuzhiyun MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
27*4882a593Smuzhiyun module_param_array(id, charp, NULL, 0444);
28*4882a593Smuzhiyun MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
29*4882a593Smuzhiyun module_param_array(enable, bool, NULL, 0444);
30*4882a593Smuzhiyun MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
31*4882a593Smuzhiyun module_param_hw_array(port, long, ioport, NULL, 0444);
32*4882a593Smuzhiyun MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
33*4882a593Smuzhiyun
snd_adlib_match(struct device * dev,unsigned int n)34*4882a593Smuzhiyun static int snd_adlib_match(struct device *dev, unsigned int n)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun if (!enable[n])
37*4882a593Smuzhiyun return 0;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun if (port[n] == SNDRV_AUTO_PORT) {
40*4882a593Smuzhiyun dev_err(dev, "please specify port\n");
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun return 1;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
snd_adlib_free(struct snd_card * card)46*4882a593Smuzhiyun static void snd_adlib_free(struct snd_card *card)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun release_and_free_resource(card->private_data);
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
snd_adlib_probe(struct device * dev,unsigned int n)51*4882a593Smuzhiyun static int snd_adlib_probe(struct device *dev, unsigned int n)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun struct snd_card *card;
54*4882a593Smuzhiyun struct snd_opl3 *opl3;
55*4882a593Smuzhiyun int error;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
58*4882a593Smuzhiyun if (error < 0) {
59*4882a593Smuzhiyun dev_err(dev, "could not create card\n");
60*4882a593Smuzhiyun return error;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun card->private_data = request_region(port[n], 4, CRD_NAME);
64*4882a593Smuzhiyun if (!card->private_data) {
65*4882a593Smuzhiyun dev_err(dev, "could not grab ports\n");
66*4882a593Smuzhiyun error = -EBUSY;
67*4882a593Smuzhiyun goto out;
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun card->private_free = snd_adlib_free;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun strcpy(card->driver, DEV_NAME);
72*4882a593Smuzhiyun strcpy(card->shortname, CRD_NAME);
73*4882a593Smuzhiyun sprintf(card->longname, CRD_NAME " at %#lx", port[n]);
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun error = snd_opl3_create(card, port[n], port[n] + 2, OPL3_HW_AUTO, 1, &opl3);
76*4882a593Smuzhiyun if (error < 0) {
77*4882a593Smuzhiyun dev_err(dev, "could not create OPL\n");
78*4882a593Smuzhiyun goto out;
79*4882a593Smuzhiyun }
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);
82*4882a593Smuzhiyun if (error < 0) {
83*4882a593Smuzhiyun dev_err(dev, "could not create FM\n");
84*4882a593Smuzhiyun goto out;
85*4882a593Smuzhiyun }
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun error = snd_card_register(card);
88*4882a593Smuzhiyun if (error < 0) {
89*4882a593Smuzhiyun dev_err(dev, "could not register card\n");
90*4882a593Smuzhiyun goto out;
91*4882a593Smuzhiyun }
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun dev_set_drvdata(dev, card);
94*4882a593Smuzhiyun return 0;
95*4882a593Smuzhiyun
96*4882a593Smuzhiyun out: snd_card_free(card);
97*4882a593Smuzhiyun return error;
98*4882a593Smuzhiyun }
99*4882a593Smuzhiyun
snd_adlib_remove(struct device * dev,unsigned int n)100*4882a593Smuzhiyun static int snd_adlib_remove(struct device *dev, unsigned int n)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun snd_card_free(dev_get_drvdata(dev));
103*4882a593Smuzhiyun return 0;
104*4882a593Smuzhiyun }
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun static struct isa_driver snd_adlib_driver = {
107*4882a593Smuzhiyun .match = snd_adlib_match,
108*4882a593Smuzhiyun .probe = snd_adlib_probe,
109*4882a593Smuzhiyun .remove = snd_adlib_remove,
110*4882a593Smuzhiyun
111*4882a593Smuzhiyun .driver = {
112*4882a593Smuzhiyun .name = DEV_NAME
113*4882a593Smuzhiyun }
114*4882a593Smuzhiyun };
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun module_isa_driver(snd_adlib_driver, SNDRV_CARDS);
117