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