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
100 if (port[dev] != SNDRV_AUTO_PORT) {
101 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
102 snd_sb8_interrupt,
103 dma8[dev],
104 -1,
105 SB_HW_AUTO,
106 &chip)) < 0)
107 goto _err;
108 } else {
109 /* auto-probe legacy ports */
110 static unsigned long possible_ports[] = {
111 0x220, 0x240, 0x260,
112 };
113 int i;
114 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
115 err = snd_sbdsp_create(card, possible_ports[i],
116 irq[dev],
117 snd_sb8_interrupt,
118 dma8[dev],
119 -1,
120 SB_HW_AUTO,
121 &chip);
122 if (err >= 0) {
123 port[dev] = possible_ports[i];
124 break;
125 }
126 }
127 if (i >= ARRAY_SIZE(possible_ports)) {
128 err = -EINVAL;
129 goto _err;
130 }
131 }
132 acard->chip = chip;
133
134 if (chip->hardware >= SB_HW_16) {
135 if (chip->hardware == SB_HW_ALS100)
136 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
137 port[dev]);
138 else
139 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
140 port[dev]);
141 err = -ENODEV;
142 goto _err;
143 }
144
145 if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
146 goto _err;
147
148 if ((err = snd_sbmixer_new(chip)) < 0)
149 goto _err;
150
151 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
152 if ((err = snd_opl3_create(card, chip->port + 8, 0,
153 OPL3_HW_AUTO, 1,
154 &opl3)) < 0) {
155 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
156 }
157 } else {
158 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
159 OPL3_HW_AUTO, 1,
160 &opl3)) < 0) {
161 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
162 chip->port, chip->port + 2);
163 }
164 }
165 if (err >= 0) {
166 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
167 goto _err;
168 }
169
170 if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
171 goto _err;
172
173 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
174 strcpy(card->shortname, chip->name);
175 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
176 chip->name,
177 chip->port,
178 irq[dev], dma8[dev]);
179
180 if ((err = snd_card_register(card)) < 0)
181 goto _err;
182
183 dev_set_drvdata(pdev, card);
184 return 0;
185
186 _err:
187 snd_card_free(card);
188 return err;
189 }
190
snd_sb8_remove(struct device * pdev,unsigned int dev)191 static int snd_sb8_remove(struct device *pdev, unsigned int dev)
192 {
193 snd_card_free(dev_get_drvdata(pdev));
194 return 0;
195 }
196
197 #ifdef CONFIG_PM
snd_sb8_suspend(struct device * dev,unsigned int n,pm_message_t state)198 static int snd_sb8_suspend(struct device *dev, unsigned int n,
199 pm_message_t state)
200 {
201 struct snd_card *card = dev_get_drvdata(dev);
202 struct snd_sb8 *acard = card->private_data;
203 struct snd_sb *chip = acard->chip;
204
205 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
206 snd_sbmixer_suspend(chip);
207 return 0;
208 }
209
snd_sb8_resume(struct device * dev,unsigned int n)210 static int snd_sb8_resume(struct device *dev, unsigned int n)
211 {
212 struct snd_card *card = dev_get_drvdata(dev);
213 struct snd_sb8 *acard = card->private_data;
214 struct snd_sb *chip = acard->chip;
215
216 snd_sbdsp_reset(chip);
217 snd_sbmixer_resume(chip);
218 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
219 return 0;
220 }
221 #endif
222
223 #define DEV_NAME "sb8"
224
225 static struct isa_driver snd_sb8_driver = {
226 .match = snd_sb8_match,
227 .probe = snd_sb8_probe,
228 .remove = snd_sb8_remove,
229 #ifdef CONFIG_PM
230 .suspend = snd_sb8_suspend,
231 .resume = snd_sb8_resume,
232 #endif
233 .driver = {
234 .name = DEV_NAME
235 },
236 };
237
238 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);
239