1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5 */
6
7 #include <linux/init.h>
8 #include <linux/err.h>
9 #include <linux/isa.h>
10 #include <linux/ioport.h>
11 #include <linux/module.h>
12 #include <sound/core.h>
13 #include <sound/sb.h>
14 #include <sound/opl3.h>
15 #include <sound/initval.h>
16
17 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
18 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
19 MODULE_LICENSE("GPL");
20 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
21
22 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
23 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
24 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
25 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
26 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
27 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
28
29 module_param_array(index, int, NULL, 0444);
30 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
31 module_param_array(id, charp, NULL, 0444);
32 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
33 module_param_array(enable, bool, NULL, 0444);
34 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
35 module_param_hw_array(port, long, ioport, NULL, 0444);
36 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
37 module_param_hw_array(irq, int, irq, NULL, 0444);
38 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
39 module_param_hw_array(dma8, int, dma, NULL, 0444);
40 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
41
42 struct snd_sb8 {
43 struct resource *fm_res; /* used to block FM i/o region for legacy cards */
44 struct snd_sb *chip;
45 };
46
snd_sb8_interrupt(int irq,void * dev_id)47 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
48 {
49 struct snd_sb *chip = dev_id;
50
51 if (chip->open & SB_OPEN_PCM) {
52 return snd_sb8dsp_interrupt(chip);
53 } else {
54 return snd_sb8dsp_midi_interrupt(chip);
55 }
56 }
57
snd_sb8_free(struct snd_card * card)58 static void snd_sb8_free(struct snd_card *card)
59 {
60 struct snd_sb8 *acard = card->private_data;
61
62 if (acard == NULL)
63 return;
64 release_and_free_resource(acard->fm_res);
65 }
66
snd_sb8_match(struct device * pdev,unsigned int dev)67 static int snd_sb8_match(struct device *pdev, unsigned int dev)
68 {
69 if (!enable[dev])
70 return 0;
71 if (irq[dev] == SNDRV_AUTO_IRQ) {
72 dev_err(pdev, "please specify irq\n");
73 return 0;
74 }
75 if (dma8[dev] == SNDRV_AUTO_DMA) {
76 dev_err(pdev, "please specify dma8\n");
77 return 0;
78 }
79 return 1;
80 }
81
snd_sb8_probe(struct device * pdev,unsigned int dev)82 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
83 {
84 struct snd_sb *chip;
85 struct snd_card *card;
86 struct snd_sb8 *acard;
87 struct snd_opl3 *opl3;
88 int err;
89
90 err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
91 sizeof(struct snd_sb8), &card);
92 if (err < 0)
93 return err;
94 acard = card->private_data;
95 card->private_free = snd_sb8_free;
96
97 /* block the 0x388 port to avoid PnP conflicts */
98 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
99 if (!acard->fm_res) {
100 err = -EBUSY;
101 goto _err;
102 }
103
104 if (port[dev] != SNDRV_AUTO_PORT) {
105 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
106 snd_sb8_interrupt,
107 dma8[dev],
108 -1,
109 SB_HW_AUTO,
110 &chip)) < 0)
111 goto _err;
112 } else {
113 /* auto-probe legacy ports */
114 static const unsigned long possible_ports[] = {
115 0x220, 0x240, 0x260,
116 };
117 int i;
118 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
119 err = snd_sbdsp_create(card, possible_ports[i],
120 irq[dev],
121 snd_sb8_interrupt,
122 dma8[dev],
123 -1,
124 SB_HW_AUTO,
125 &chip);
126 if (err >= 0) {
127 port[dev] = possible_ports[i];
128 break;
129 }
130 }
131 if (i >= ARRAY_SIZE(possible_ports)) {
132 err = -EINVAL;
133 goto _err;
134 }
135 }
136 acard->chip = chip;
137
138 if (chip->hardware >= SB_HW_16) {
139 if (chip->hardware == SB_HW_ALS100)
140 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
141 port[dev]);
142 else
143 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
144 port[dev]);
145 err = -ENODEV;
146 goto _err;
147 }
148
149 if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
150 goto _err;
151
152 if ((err = snd_sbmixer_new(chip)) < 0)
153 goto _err;
154
155 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
156 if ((err = snd_opl3_create(card, chip->port + 8, 0,
157 OPL3_HW_AUTO, 1,
158 &opl3)) < 0) {
159 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
160 }
161 } else {
162 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
163 OPL3_HW_AUTO, 1,
164 &opl3)) < 0) {
165 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
166 chip->port, chip->port + 2);
167 }
168 }
169 if (err >= 0) {
170 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
171 goto _err;
172 }
173
174 if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
175 goto _err;
176
177 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
178 strcpy(card->shortname, chip->name);
179 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
180 chip->name,
181 chip->port,
182 irq[dev], dma8[dev]);
183
184 if ((err = snd_card_register(card)) < 0)
185 goto _err;
186
187 dev_set_drvdata(pdev, card);
188 return 0;
189
190 _err:
191 snd_card_free(card);
192 return err;
193 }
194
snd_sb8_remove(struct device * pdev,unsigned int dev)195 static int snd_sb8_remove(struct device *pdev, unsigned int dev)
196 {
197 snd_card_free(dev_get_drvdata(pdev));
198 return 0;
199 }
200
201 #ifdef CONFIG_PM
snd_sb8_suspend(struct device * dev,unsigned int n,pm_message_t state)202 static int snd_sb8_suspend(struct device *dev, unsigned int n,
203 pm_message_t state)
204 {
205 struct snd_card *card = dev_get_drvdata(dev);
206 struct snd_sb8 *acard = card->private_data;
207 struct snd_sb *chip = acard->chip;
208
209 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
210 snd_sbmixer_suspend(chip);
211 return 0;
212 }
213
snd_sb8_resume(struct device * dev,unsigned int n)214 static int snd_sb8_resume(struct device *dev, unsigned int n)
215 {
216 struct snd_card *card = dev_get_drvdata(dev);
217 struct snd_sb8 *acard = card->private_data;
218 struct snd_sb *chip = acard->chip;
219
220 snd_sbdsp_reset(chip);
221 snd_sbmixer_resume(chip);
222 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
223 return 0;
224 }
225 #endif
226
227 #define DEV_NAME "sb8"
228
229 static struct isa_driver snd_sb8_driver = {
230 .match = snd_sb8_match,
231 .probe = snd_sb8_probe,
232 .remove = snd_sb8_remove,
233 #ifdef CONFIG_PM
234 .suspend = snd_sb8_suspend,
235 .resume = snd_sb8_resume,
236 #endif
237 .driver = {
238 .name = DEV_NAME
239 },
240 };
241
242 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);
243
