xref: /openbmc/linux/sound/isa/sb/sb8.c (revision e868d61272caa648214046a096e5a6bfc068dc8c)
1 /*
2  *  Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
3  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/err.h>
25 #include <linux/isa.h>
26 #include <linux/slab.h>
27 #include <linux/ioport.h>
28 #include <linux/moduleparam.h>
29 #include <sound/core.h>
30 #include <sound/sb.h>
31 #include <sound/opl3.h>
32 #include <sound/initval.h>
33 
34 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
35 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
36 MODULE_LICENSE("GPL");
37 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
38 
39 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
40 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
41 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260 */
43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 1,3 */
45 
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
52 module_param_array(port, long, NULL, 0444);
53 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
54 module_param_array(irq, int, NULL, 0444);
55 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
56 module_param_array(dma8, int, NULL, 0444);
57 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
58 
59 struct snd_sb8 {
60 	struct resource *fm_res;	/* used to block FM i/o region for legacy cards */
61 	struct snd_sb *chip;
62 };
63 
64 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
65 {
66 	struct snd_sb *chip = dev_id;
67 
68 	if (chip->open & SB_OPEN_PCM) {
69 		return snd_sb8dsp_interrupt(chip);
70 	} else {
71 		return snd_sb8dsp_midi_interrupt(chip);
72 	}
73 }
74 
75 static void snd_sb8_free(struct snd_card *card)
76 {
77 	struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
78 
79 	if (acard == NULL)
80 		return;
81 	release_and_free_resource(acard->fm_res);
82 }
83 
84 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
85 {
86 	if (!enable[dev])
87 		return 0;
88 	if (irq[dev] == SNDRV_AUTO_IRQ) {
89 		snd_printk(KERN_ERR "%s: please specify irq\n", pdev->bus_id);
90 		return 0;
91 	}
92 	if (dma8[dev] == SNDRV_AUTO_DMA) {
93 		snd_printk(KERN_ERR "%s: please specify dma8\n", pdev->bus_id);
94 		return 0;
95 	}
96 	return 1;
97 }
98 
99 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
100 {
101 	struct snd_sb *chip;
102 	struct snd_card *card;
103 	struct snd_sb8 *acard;
104 	struct snd_opl3 *opl3;
105 	int err;
106 
107 	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
108 			    sizeof(struct snd_sb8));
109 	if (card == NULL)
110 		return -ENOMEM;
111 	acard = card->private_data;
112 	card->private_free = snd_sb8_free;
113 
114 	/* block the 0x388 port to avoid PnP conflicts */
115 	acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
116 
117 	if (port[dev] != SNDRV_AUTO_PORT) {
118 		if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
119 					    snd_sb8_interrupt,
120 					    dma8[dev],
121 					    -1,
122 					    SB_HW_AUTO,
123 					    &chip)) < 0)
124 			goto _err;
125 	} else {
126 		/* auto-probe legacy ports */
127 		static unsigned long possible_ports[] = {
128 			0x220, 0x240, 0x260,
129 		};
130 		int i;
131 		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
132 			err = snd_sbdsp_create(card, possible_ports[i],
133 					       irq[dev],
134 					       snd_sb8_interrupt,
135 					       dma8[dev],
136 					       -1,
137 					       SB_HW_AUTO,
138 					       &chip);
139 			if (err >= 0) {
140 				port[dev] = possible_ports[i];
141 				break;
142 			}
143 		}
144 		if (i >= ARRAY_SIZE(possible_ports))
145 			goto _err;
146 	}
147 	acard->chip = chip;
148 
149 	if (chip->hardware >= SB_HW_16) {
150 		if (chip->hardware == SB_HW_ALS100)
151 			snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
152 				    port[dev]);
153 		else
154 			snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
155 				   port[dev]);
156 		err = -ENODEV;
157 		goto _err;
158 	}
159 
160 	if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
161 		goto _err;
162 
163 	if ((err = snd_sbmixer_new(chip)) < 0)
164 		goto _err;
165 
166 	if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
167 		if ((err = snd_opl3_create(card, chip->port + 8, 0,
168 					   OPL3_HW_AUTO, 1,
169 					   &opl3)) < 0) {
170 			snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
171 		}
172 	} else {
173 		if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
174 					   OPL3_HW_AUTO, 1,
175 					   &opl3)) < 0) {
176 			snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
177 				   chip->port, chip->port + 2);
178 		}
179 	}
180 	if (err >= 0) {
181 		if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
182 			goto _err;
183 	}
184 
185 	if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
186 		goto _err;
187 
188 	strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
189 	strcpy(card->shortname, chip->name);
190 	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
191 		chip->name,
192 		chip->port,
193 		irq[dev], dma8[dev]);
194 
195 	snd_card_set_dev(card, pdev);
196 
197 	if ((err = snd_card_register(card)) < 0)
198 		goto _err;
199 
200 	dev_set_drvdata(pdev, card);
201 	return 0;
202 
203  _err:
204 	snd_card_free(card);
205 	return err;
206 }
207 
208 static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev)
209 {
210 	snd_card_free(dev_get_drvdata(pdev));
211 	dev_set_drvdata(pdev, NULL);
212 	return 0;
213 }
214 
215 #ifdef CONFIG_PM
216 static int snd_sb8_suspend(struct device *dev, unsigned int n,
217 			   pm_message_t state)
218 {
219 	struct snd_card *card = dev_get_drvdata(dev);
220 	struct snd_sb8 *acard = card->private_data;
221 	struct snd_sb *chip = acard->chip;
222 
223 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
224 	snd_pcm_suspend_all(chip->pcm);
225 	snd_sbmixer_suspend(chip);
226 	return 0;
227 }
228 
229 static int snd_sb8_resume(struct device *dev, unsigned int n)
230 {
231 	struct snd_card *card = dev_get_drvdata(dev);
232 	struct snd_sb8 *acard = card->private_data;
233 	struct snd_sb *chip = acard->chip;
234 
235 	snd_sbdsp_reset(chip);
236 	snd_sbmixer_resume(chip);
237 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
238 	return 0;
239 }
240 #endif
241 
242 #define DEV_NAME "sb8"
243 
244 static struct isa_driver snd_sb8_driver = {
245 	.match		= snd_sb8_match,
246 	.probe		= snd_sb8_probe,
247 	.remove		= __devexit_p(snd_sb8_remove),
248 #ifdef CONFIG_PM
249 	.suspend	= snd_sb8_suspend,
250 	.resume		= snd_sb8_resume,
251 #endif
252 	.driver		= {
253 		.name	= DEV_NAME
254 	},
255 };
256 
257 static int __init alsa_card_sb8_init(void)
258 {
259 	return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
260 }
261 
262 static void __exit alsa_card_sb8_exit(void)
263 {
264 	isa_unregister_driver(&snd_sb8_driver);
265 }
266 
267 module_init(alsa_card_sb8_init)
268 module_exit(alsa_card_sb8_exit)
269