Linux 5.13-rc5
[sfrench/cifs-2.6.git] / sound / isa / sb / sb8.c
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
21 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
22 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
23 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
24 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
25 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
26 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
27
28 module_param_array(index, int, NULL, 0444);
29 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
30 module_param_array(id, charp, NULL, 0444);
31 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
32 module_param_array(enable, bool, NULL, 0444);
33 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
34 module_param_hw_array(port, long, ioport, NULL, 0444);
35 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
36 module_param_hw_array(irq, int, irq, NULL, 0444);
37 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
38 module_param_hw_array(dma8, int, dma, NULL, 0444);
39 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
40
41 struct snd_sb8 {
42         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
43         struct snd_sb *chip;
44 };
45
46 static 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
57 static void snd_sb8_free(struct snd_card *card)
58 {
59         struct snd_sb8 *acard = card->private_data;
60
61         if (acard == NULL)
62                 return;
63         release_and_free_resource(acard->fm_res);
64 }
65
66 static int snd_sb8_match(struct device *pdev, unsigned int dev)
67 {
68         if (!enable[dev])
69                 return 0;
70         if (irq[dev] == SNDRV_AUTO_IRQ) {
71                 dev_err(pdev, "please specify irq\n");
72                 return 0;
73         }
74         if (dma8[dev] == SNDRV_AUTO_DMA) {
75                 dev_err(pdev, "please specify dma8\n");
76                 return 0;
77         }
78         return 1;
79 }
80
81 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
82 {
83         struct snd_sb *chip;
84         struct snd_card *card;
85         struct snd_sb8 *acard;
86         struct snd_opl3 *opl3;
87         int err;
88
89         err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
90                            sizeof(struct snd_sb8), &card);
91         if (err < 0)
92                 return err;
93         acard = card->private_data;
94         card->private_free = snd_sb8_free;
95
96         /* block the 0x388 port to avoid PnP conflicts */
97         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
98         if (!acard->fm_res) {
99                 err = -EBUSY;
100                 goto _err;
101         }
102
103         if (port[dev] != SNDRV_AUTO_PORT) {
104                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
105                                             snd_sb8_interrupt,
106                                             dma8[dev],
107                                             -1,
108                                             SB_HW_AUTO,
109                                             &chip)) < 0)
110                         goto _err;
111         } else {
112                 /* auto-probe legacy ports */
113                 static const unsigned long possible_ports[] = {
114                         0x220, 0x240, 0x260,
115                 };
116                 int i;
117                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
118                         err = snd_sbdsp_create(card, possible_ports[i],
119                                                irq[dev],
120                                                snd_sb8_interrupt,
121                                                dma8[dev],
122                                                -1,
123                                                SB_HW_AUTO,
124                                                &chip);
125                         if (err >= 0) {
126                                 port[dev] = possible_ports[i];
127                                 break;
128                         }
129                 }
130                 if (i >= ARRAY_SIZE(possible_ports)) {
131                         err = -EINVAL;
132                         goto _err;
133                 }
134         }
135         acard->chip = chip;
136                         
137         if (chip->hardware >= SB_HW_16) {
138                 if (chip->hardware == SB_HW_ALS100)
139                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
140                                     port[dev]);
141                 else
142                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
143                                    port[dev]);
144                 err = -ENODEV;
145                 goto _err;
146         }
147
148         if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
149                 goto _err;
150
151         if ((err = snd_sbmixer_new(chip)) < 0)
152                 goto _err;
153
154         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
155                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
156                                            OPL3_HW_AUTO, 1,
157                                            &opl3)) < 0) {
158                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
159                 }
160         } else {
161                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
162                                            OPL3_HW_AUTO, 1,
163                                            &opl3)) < 0) {
164                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
165                                    chip->port, chip->port + 2);
166                 }
167         }
168         if (err >= 0) {
169                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
170                         goto _err;
171         }
172
173         if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
174                 goto _err;
175
176         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
177         strcpy(card->shortname, chip->name);
178         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
179                 chip->name,
180                 chip->port,
181                 irq[dev], dma8[dev]);
182
183         if ((err = snd_card_register(card)) < 0)
184                 goto _err;
185
186         dev_set_drvdata(pdev, card);
187         return 0;
188
189  _err:
190         snd_card_free(card);
191         return err;
192 }
193
194 static void snd_sb8_remove(struct device *pdev, unsigned int dev)
195 {
196         snd_card_free(dev_get_drvdata(pdev));
197 }
198
199 #ifdef CONFIG_PM
200 static int snd_sb8_suspend(struct device *dev, unsigned int n,
201                            pm_message_t state)
202 {
203         struct snd_card *card = dev_get_drvdata(dev);
204         struct snd_sb8 *acard = card->private_data;
205         struct snd_sb *chip = acard->chip;
206
207         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
208         snd_sbmixer_suspend(chip);
209         return 0;
210 }
211
212 static int snd_sb8_resume(struct device *dev, unsigned int n)
213 {
214         struct snd_card *card = dev_get_drvdata(dev);
215         struct snd_sb8 *acard = card->private_data;
216         struct snd_sb *chip = acard->chip;
217
218         snd_sbdsp_reset(chip);
219         snd_sbmixer_resume(chip);
220         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
221         return 0;
222 }
223 #endif
224
225 #define DEV_NAME "sb8"
226
227 static struct isa_driver snd_sb8_driver = {
228         .match          = snd_sb8_match,
229         .probe          = snd_sb8_probe,
230         .remove         = snd_sb8_remove,
231 #ifdef CONFIG_PM
232         .suspend        = snd_sb8_suspend,
233         .resume         = snd_sb8_resume,
234 #endif
235         .driver         = {
236                 .name   = DEV_NAME 
237         },
238 };
239
240 module_isa_driver(snd_sb8_driver, SNDRV_CARDS);