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TOMOYO Linux Cross Reference
Linux/sound/isa/sb/sb16.c

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *  Driver for SoundBlaster 16/AWE32/AWE64 soundcards
  4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  5  */
  6 
  7 #include <asm/dma.h>
  8 #include <linux/init.h>
  9 #include <linux/pnp.h>
 10 #include <linux/err.h>
 11 #include <linux/isa.h>
 12 #include <linux/module.h>
 13 #include <sound/core.h>
 14 #include <sound/sb.h>
 15 #include <sound/sb16_csp.h>
 16 #include <sound/mpu401.h>
 17 #include <sound/opl3.h>
 18 #include <sound/emu8000.h>
 19 #include <sound/seq_device.h>
 20 #define SNDRV_LEGACY_FIND_FREE_IRQ
 21 #define SNDRV_LEGACY_FIND_FREE_DMA
 22 #include <sound/initval.h>
 23 
 24 #ifdef SNDRV_SBAWE
 25 #define PFX "sbawe: "
 26 #else
 27 #define PFX "sb16: "
 28 #endif
 29 
 30 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 31 MODULE_LICENSE("GPL");
 32 #ifndef SNDRV_SBAWE
 33 MODULE_DESCRIPTION("Sound Blaster 16");
 34 #else
 35 MODULE_DESCRIPTION("Sound Blaster AWE");
 36 #endif
 37 
 38 #if 0
 39 #define SNDRV_DEBUG_IRQ
 40 #endif
 41 
 42 #if defined(SNDRV_SBAWE) && IS_ENABLED(CONFIG_SND_SEQUENCER)
 43 #define SNDRV_SBAWE_EMU8000
 44 #endif
 45 
 46 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 47 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 48 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
 49 #ifdef CONFIG_PNP
 50 static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
 51 #endif
 52 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
 53 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x330,0x300 */
 54 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 55 #ifdef SNDRV_SBAWE_EMU8000
 56 static long awe_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 57 #endif
 58 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
 59 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
 60 static int dma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;      /* 5,6,7 */
 61 static int mic_agc[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
 62 #ifdef CONFIG_SND_SB16_CSP
 63 static int csp[SNDRV_CARDS];
 64 #endif
 65 #ifdef SNDRV_SBAWE_EMU8000
 66 static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
 67 #endif
 68 
 69 module_param_array(index, int, NULL, 0444);
 70 MODULE_PARM_DESC(index, "Index value for SoundBlaster 16 soundcard.");
 71 module_param_array(id, charp, NULL, 0444);
 72 MODULE_PARM_DESC(id, "ID string for SoundBlaster 16 soundcard.");
 73 module_param_array(enable, bool, NULL, 0444);
 74 MODULE_PARM_DESC(enable, "Enable SoundBlaster 16 soundcard.");
 75 #ifdef CONFIG_PNP
 76 module_param_array(isapnp, bool, NULL, 0444);
 77 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
 78 #endif
 79 module_param_hw_array(port, long, ioport, NULL, 0444);
 80 MODULE_PARM_DESC(port, "Port # for SB16 driver.");
 81 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
 82 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for SB16 driver.");
 83 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
 84 MODULE_PARM_DESC(fm_port, "FM port # for SB16 PnP driver.");
 85 #ifdef SNDRV_SBAWE_EMU8000
 86 module_param_hw_array(awe_port, long, ioport, NULL, 0444);
 87 MODULE_PARM_DESC(awe_port, "AWE port # for SB16 PnP driver.");
 88 #endif
 89 module_param_hw_array(irq, int, irq, NULL, 0444);
 90 MODULE_PARM_DESC(irq, "IRQ # for SB16 driver.");
 91 module_param_hw_array(dma8, int, dma, NULL, 0444);
 92 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB16 driver.");
 93 module_param_hw_array(dma16, int, dma, NULL, 0444);
 94 MODULE_PARM_DESC(dma16, "16-bit DMA # for SB16 driver.");
 95 module_param_array(mic_agc, int, NULL, 0444);
 96 MODULE_PARM_DESC(mic_agc, "Mic Auto-Gain-Control switch.");
 97 #ifdef CONFIG_SND_SB16_CSP
 98 module_param_array(csp, int, NULL, 0444);
 99 MODULE_PARM_DESC(csp, "ASP/CSP chip support.");
100 #endif
101 #ifdef SNDRV_SBAWE_EMU8000
102 module_param_array(seq_ports, int, NULL, 0444);
103 MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth.");
104 #endif
105 
106 #ifdef CONFIG_PNP
107 static int isa_registered;
108 static int pnp_registered;
109 #endif
110 
111 struct snd_card_sb16 {
112         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
113         struct snd_sb *chip;
114 #ifdef CONFIG_PNP
115         int dev_no;
116         struct pnp_dev *dev;
117 #ifdef SNDRV_SBAWE_EMU8000
118         struct pnp_dev *devwt;
119 #endif
120 #endif
121 };
122 
123 #ifdef CONFIG_PNP
124 
125 static const struct pnp_card_device_id snd_sb16_pnpids[] = {
126 #ifndef SNDRV_SBAWE
127         /* Sound Blaster 16 PnP */
128         { .id = "CTL0024", .devs = { { "CTL0031" } } },
129         /* Sound Blaster 16 PnP */
130         { .id = "CTL0025", .devs = { { "CTL0031" } } },
131         /* Sound Blaster 16 PnP */
132         { .id = "CTL0026", .devs = { { "CTL0031" } } },
133         /* Sound Blaster 16 PnP */
134         { .id = "CTL0027", .devs = { { "CTL0031" } } },
135         /* Sound Blaster 16 PnP */
136         { .id = "CTL0028", .devs = { { "CTL0031" } } },
137         /* Sound Blaster 16 PnP */
138         { .id = "CTL0029", .devs = { { "CTL0031" } } },
139         /* Sound Blaster 16 PnP */
140         { .id = "CTL002a", .devs = { { "CTL0031" } } },
141         /* Sound Blaster 16 PnP */
142         /* Note: This card has also a CTL0051:StereoEnhance device!!! */
143         { .id = "CTL002b", .devs = { { "CTL0031" } } },
144         /* Sound Blaster 16 PnP */
145         { .id = "CTL002c", .devs = { { "CTL0031" } } },
146         /* Sound Blaster Vibra16S */
147         { .id = "CTL0051", .devs = { { "CTL0001" } } },
148         /* Sound Blaster Vibra16C */
149         { .id = "CTL0070", .devs = { { "CTL0001" } } },
150         /* Sound Blaster Vibra16CL - added by ctm@ardi.com */
151         { .id = "CTL0080", .devs = { { "CTL0041" } } },
152         /* Sound Blaster 16 'value' PnP. It says model ct4130 on the pcb, */
153         /* but ct4131 on a sticker on the board.. */
154         { .id = "CTL0086", .devs = { { "CTL0041" } } },
155         /* Sound Blaster Vibra16X */
156         { .id = "CTL00f0", .devs = { { "CTL0043" } } },
157         /* Sound Blaster 16 (Virtual PC 2004) */
158         { .id = "tBA03b0", .devs = { {.id="PNPb003" } } },
159 #else  /* SNDRV_SBAWE defined */
160         /* Sound Blaster AWE 32 PnP */
161         { .id = "CTL0035", .devs = { { "CTL0031" }, { "CTL0021" } } },
162         /* Sound Blaster AWE 32 PnP */
163         { .id = "CTL0039", .devs = { { "CTL0031" }, { "CTL0021" } } },
164         /* Sound Blaster AWE 32 PnP */
165         { .id = "CTL0042", .devs = { { "CTL0031" }, { "CTL0021" } } },
166         /* Sound Blaster AWE 32 PnP */
167         { .id = "CTL0043", .devs = { { "CTL0031" }, { "CTL0021" } } },
168         /* Sound Blaster AWE 32 PnP */
169         /* Note: This card has also a CTL0051:StereoEnhance device!!! */
170         { .id = "CTL0044", .devs = { { "CTL0031" }, { "CTL0021" } } },
171         /* Sound Blaster AWE 32 PnP */
172         /* Note: This card has also a CTL0051:StereoEnhance device!!! */
173         { .id = "CTL0045", .devs = { { "CTL0031" }, { "CTL0021" } } },
174         /* Sound Blaster AWE 32 PnP */
175         { .id = "CTL0046", .devs = { { "CTL0031" }, { "CTL0021" } } },
176         /* Sound Blaster AWE 32 PnP */
177         { .id = "CTL0047", .devs = { { "CTL0031" }, { "CTL0021" } } },
178         /* Sound Blaster AWE 32 PnP */
179         { .id = "CTL0048", .devs = { { "CTL0031" }, { "CTL0021" } } },
180         /* Sound Blaster AWE 32 PnP */
181         { .id = "CTL0054", .devs = { { "CTL0031" }, { "CTL0021" } } },
182         /* Sound Blaster AWE 32 PnP */
183         { .id = "CTL009a", .devs = { { "CTL0041" }, { "CTL0021" } } },
184         /* Sound Blaster AWE 32 PnP */
185         { .id = "CTL009c", .devs = { { "CTL0041" }, { "CTL0021" } } },
186         /* Sound Blaster 32 PnP */
187         { .id = "CTL009f", .devs = { { "CTL0041" }, { "CTL0021" } } },
188         /* Sound Blaster AWE 64 PnP */
189         { .id = "CTL009d", .devs = { { "CTL0042" }, { "CTL0022" } } },
190         /* Sound Blaster AWE 64 PnP Gold */
191         { .id = "CTL009e", .devs = { { "CTL0044" }, { "CTL0023" } } },
192         /* Sound Blaster AWE 64 PnP Gold */
193         { .id = "CTL00b2", .devs = { { "CTL0044" }, { "CTL0023" } } },
194         /* Sound Blaster AWE 64 PnP */
195         { .id = "CTL00c1", .devs = { { "CTL0042" }, { "CTL0022" } } },
196         /* Sound Blaster AWE 64 PnP */
197         { .id = "CTL00c3", .devs = { { "CTL0045" }, { "CTL0022" } } },
198         /* Sound Blaster AWE 64 PnP */
199         { .id = "CTL00c5", .devs = { { "CTL0045" }, { "CTL0022" } } },
200         /* Sound Blaster AWE 64 PnP */
201         { .id = "CTL00c7", .devs = { { "CTL0045" }, { "CTL0022" } } },
202         /* Sound Blaster AWE 64 PnP */
203         { .id = "CTL00e4", .devs = { { "CTL0045" }, { "CTL0022" } } },
204         /* Sound Blaster AWE 64 PnP */
205         { .id = "CTL00e9", .devs = { { "CTL0045" }, { "CTL0022" } } },
206         /* Sound Blaster 16 PnP (AWE) */
207         { .id = "CTL00ed", .devs = { { "CTL0041" }, { "CTL0070" } } },
208         /* Generic entries */
209         { .id = "CTLXXXX" , .devs = { { "CTL0031" }, { "CTL0021" } } },
210         { .id = "CTLXXXX" , .devs = { { "CTL0041" }, { "CTL0021" } } },
211         { .id = "CTLXXXX" , .devs = { { "CTL0042" }, { "CTL0022" } } },
212         { .id = "CTLXXXX" , .devs = { { "CTL0044" }, { "CTL0023" } } },
213         { .id = "CTLXXXX" , .devs = { { "CTL0045" }, { "CTL0022" } } },
214 #endif /* SNDRV_SBAWE */
215         { .id = "", }
216 };
217 
218 MODULE_DEVICE_TABLE(pnp_card, snd_sb16_pnpids);
219 
220 #endif /* CONFIG_PNP */
221 
222 #ifdef SNDRV_SBAWE_EMU8000
223 #define DRIVER_NAME     "snd-card-sbawe"
224 #else
225 #define DRIVER_NAME     "snd-card-sb16"
226 #endif
227 
228 #ifdef CONFIG_PNP
229 
230 static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
231                              struct pnp_card_link *card,
232                              const struct pnp_card_device_id *id)
233 {
234         struct pnp_dev *pdev;
235         int err;
236 
237         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
238         if (acard->dev == NULL)
239                 return -ENODEV; 
240 
241 #ifdef SNDRV_SBAWE_EMU8000
242         acard->devwt = pnp_request_card_device(card, id->devs[1].id, acard->dev);
243 #endif
244         /* Audio initialization */
245         pdev = acard->dev;
246 
247         err = pnp_activate_dev(pdev); 
248         if (err < 0) { 
249                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n"); 
250                 return err; 
251         } 
252         port[dev] = pnp_port_start(pdev, 0);
253         mpu_port[dev] = pnp_port_start(pdev, 1);
254         fm_port[dev] = pnp_port_start(pdev, 2);
255         dma8[dev] = pnp_dma(pdev, 0);
256         dma16[dev] = pnp_dma(pdev, 1);
257         irq[dev] = pnp_irq(pdev, 0);
258         snd_printdd("pnp SB16: port=0x%lx, mpu port=0x%lx, fm port=0x%lx\n",
259                         port[dev], mpu_port[dev], fm_port[dev]);
260         snd_printdd("pnp SB16: dma1=%i, dma2=%i, irq=%i\n",
261                         dma8[dev], dma16[dev], irq[dev]);
262 #ifdef SNDRV_SBAWE_EMU8000
263         /* WaveTable initialization */
264         pdev = acard->devwt;
265         if (pdev != NULL) {
266                 err = pnp_activate_dev(pdev); 
267                 if (err < 0) { 
268                         goto __wt_error; 
269                 } 
270                 awe_port[dev] = pnp_port_start(pdev, 0);
271                 snd_printdd("pnp SB16: wavetable port=0x%llx\n",
272                                 (unsigned long long)pnp_port_start(pdev, 0));
273         } else {
274 __wt_error:
275                 if (pdev) {
276                         pnp_release_card_device(pdev);
277                         snd_printk(KERN_ERR PFX "WaveTable pnp configure failure\n");
278                 }
279                 acard->devwt = NULL;
280                 awe_port[dev] = -1;
281         }
282 #endif
283         return 0;
284 }
285 
286 #endif /* CONFIG_PNP */
287 
288 #ifdef CONFIG_PNP
289 #define is_isapnp_selected(dev)         isapnp[dev]
290 #else
291 #define is_isapnp_selected(dev)         0
292 #endif
293 
294 static int snd_sb16_card_new(struct device *devptr, int dev,
295                              struct snd_card **cardp)
296 {
297         struct snd_card *card;
298         int err;
299 
300         err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
301                                 sizeof(struct snd_card_sb16), &card);
302         if (err < 0)
303                 return err;
304         *cardp = card;
305         return 0;
306 }
307 
308 static int snd_sb16_probe(struct snd_card *card, int dev)
309 {
310         int xirq, xdma8, xdma16;
311         struct snd_sb *chip;
312         struct snd_card_sb16 *acard = card->private_data;
313         struct snd_opl3 *opl3;
314         struct snd_hwdep *synth = NULL;
315 #ifdef CONFIG_SND_SB16_CSP
316         struct snd_hwdep *xcsp = NULL;
317 #endif
318         unsigned long flags;
319         int err;
320 
321         xirq = irq[dev];
322         xdma8 = dma8[dev];
323         xdma16 = dma16[dev];
324 
325         err = snd_sbdsp_create(card, port[dev], xirq, snd_sb16dsp_interrupt,
326                                xdma8, xdma16, SB_HW_AUTO, &chip);
327         if (err < 0)
328                 return err;
329 
330         acard->chip = chip;
331         if (chip->hardware != SB_HW_16) {
332                 snd_printk(KERN_ERR PFX "SB 16 chip was not detected at 0x%lx\n", port[dev]);
333                 return -ENODEV;
334         }
335         chip->mpu_port = mpu_port[dev];
336         if (!is_isapnp_selected(dev)) {
337                 err = snd_sb16dsp_configure(chip);
338                 if (err < 0)
339                         return err;
340         }
341 
342         err = snd_sb16dsp_pcm(chip, 0);
343         if (err < 0)
344                 return err;
345 
346         strcpy(card->driver,
347 #ifdef SNDRV_SBAWE_EMU8000
348                         awe_port[dev] > 0 ? "SB AWE" :
349 #endif
350                         "SB16");
351         strcpy(card->shortname, chip->name);
352         sprintf(card->longname, "%s at 0x%lx, irq %i, dma ",
353                 chip->name,
354                 chip->port,
355                 xirq);
356         if (xdma8 >= 0)
357                 sprintf(card->longname + strlen(card->longname), "%d", xdma8);
358         if (xdma16 >= 0)
359                 sprintf(card->longname + strlen(card->longname), "%s%d",
360                         xdma8 >= 0 ? "&" : "", xdma16);
361 
362         if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
363                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB,
364                                           chip->mpu_port,
365                                           MPU401_INFO_IRQ_HOOK, -1,
366                                           &chip->rmidi);
367                 if (err < 0)
368                         return err;
369                 chip->rmidi_callback = snd_mpu401_uart_interrupt;
370         }
371 
372 #ifdef SNDRV_SBAWE_EMU8000
373         if (awe_port[dev] == SNDRV_AUTO_PORT)
374                 awe_port[dev] = 0; /* disable */
375 #endif
376 
377         if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
378                 if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
379                                     OPL3_HW_OPL3,
380                                     acard->fm_res != NULL || fm_port[dev] == port[dev],
381                                     &opl3) < 0) {
382                         snd_printk(KERN_ERR PFX "no OPL device at 0x%lx-0x%lx\n",
383                                    fm_port[dev], fm_port[dev] + 2);
384                 } else {
385 #ifdef SNDRV_SBAWE_EMU8000
386                         int seqdev = awe_port[dev] > 0 ? 2 : 1;
387 #else
388                         int seqdev = 1;
389 #endif
390                         err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth);
391                         if (err < 0)
392                                 return err;
393                 }
394         }
395 
396         err = snd_sbmixer_new(chip);
397         if (err < 0)
398                 return err;
399 
400 #ifdef CONFIG_SND_SB16_CSP
401         /* CSP chip on SB16ASP/AWE32 */
402         if ((chip->hardware == SB_HW_16) && csp[dev]) {
403                 snd_sb_csp_new(chip, synth != NULL ? 1 : 0, &xcsp);
404                 if (xcsp) {
405                         chip->csp = xcsp->private_data;
406                         chip->hardware = SB_HW_16CSP;
407                 } else {
408                         snd_printk(KERN_INFO PFX "warning - CSP chip not detected on soundcard #%i\n", dev + 1);
409                 }
410         }
411 #endif
412 #ifdef SNDRV_SBAWE_EMU8000
413         if (awe_port[dev] > 0) {
414                 err = snd_emu8000_new(card, 1, awe_port[dev],
415                                       seq_ports[dev], NULL);
416                 if (err < 0) {
417                         snd_printk(KERN_ERR PFX "fatal error - EMU-8000 synthesizer not detected at 0x%lx\n", awe_port[dev]);
418 
419                         return err;
420                 }
421         }
422 #endif
423 
424         /* setup Mic AGC */
425         spin_lock_irqsave(&chip->mixer_lock, flags);
426         snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
427                 (snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
428                 (mic_agc[dev] ? 0x00 : 0x01));
429         spin_unlock_irqrestore(&chip->mixer_lock, flags);
430 
431         err = snd_card_register(card);
432         if (err < 0)
433                 return err;
434 
435         return 0;
436 }
437 
438 #ifdef CONFIG_PM
439 static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
440 {
441         struct snd_card_sb16 *acard = card->private_data;
442         struct snd_sb *chip = acard->chip;
443 
444         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
445         snd_sbmixer_suspend(chip);
446         return 0;
447 }
448 
449 static int snd_sb16_resume(struct snd_card *card)
450 {
451         struct snd_card_sb16 *acard = card->private_data;
452         struct snd_sb *chip = acard->chip;
453 
454         snd_sbdsp_reset(chip);
455         snd_sbmixer_resume(chip);
456         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
457         return 0;
458 }
459 #endif
460 
461 static int snd_sb16_isa_probe1(int dev, struct device *pdev)
462 {
463         struct snd_card_sb16 *acard;
464         struct snd_card *card;
465         int err;
466 
467         err = snd_sb16_card_new(pdev, dev, &card);
468         if (err < 0)
469                 return err;
470 
471         acard = card->private_data;
472         /* non-PnP FM port address is hardwired with base port address */
473         fm_port[dev] = port[dev];
474         /* block the 0x388 port to avoid PnP conflicts */
475         acard->fm_res = devm_request_region(card->dev, 0x388, 4,
476                                             "SoundBlaster FM");
477 #ifdef SNDRV_SBAWE_EMU8000
478         /* non-PnP AWE port address is hardwired with base port address */
479         awe_port[dev] = port[dev] + 0x400;
480 #endif
481 
482         err = snd_sb16_probe(card, dev);
483         if (err < 0)
484                 return err;
485         dev_set_drvdata(pdev, card);
486         return 0;
487 }
488 
489 
490 static int snd_sb16_isa_match(struct device *pdev, unsigned int dev)
491 {
492         return enable[dev] && !is_isapnp_selected(dev);
493 }
494 
495 static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
496 {
497         int err;
498         static const int possible_irqs[] = {5, 9, 10, 7, -1};
499         static const int possible_dmas8[] = {1, 3, 0, -1};
500         static const int possible_dmas16[] = {5, 6, 7, -1};
501 
502         if (irq[dev] == SNDRV_AUTO_IRQ) {
503                 irq[dev] = snd_legacy_find_free_irq(possible_irqs);
504                 if (irq[dev] < 0) {
505                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
506                         return -EBUSY;
507                 }
508         }
509         if (dma8[dev] == SNDRV_AUTO_DMA) {
510                 dma8[dev] = snd_legacy_find_free_dma(possible_dmas8);
511                 if (dma8[dev] < 0) {
512                         snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n");
513                         return -EBUSY;
514                 }
515         }
516         if (dma16[dev] == SNDRV_AUTO_DMA) {
517                 dma16[dev] = snd_legacy_find_free_dma(possible_dmas16);
518                 if (dma16[dev] < 0) {
519                         snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n");
520                         return -EBUSY;
521                 }
522         }
523 
524         if (port[dev] != SNDRV_AUTO_PORT)
525                 return snd_sb16_isa_probe1(dev, pdev);
526         else {
527                 static const int possible_ports[] = {0x220, 0x240, 0x260, 0x280};
528                 int i;
529                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
530                         port[dev] = possible_ports[i];
531                         err = snd_sb16_isa_probe1(dev, pdev);
532                         if (! err)
533                                 return 0;
534                 }
535                 return err;
536         }
537 }
538 
539 #ifdef CONFIG_PM
540 static int snd_sb16_isa_suspend(struct device *dev, unsigned int n,
541                                 pm_message_t state)
542 {
543         return snd_sb16_suspend(dev_get_drvdata(dev), state);
544 }
545 
546 static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
547 {
548         return snd_sb16_resume(dev_get_drvdata(dev));
549 }
550 #endif
551 
552 #ifdef SNDRV_SBAWE
553 #define DEV_NAME "sbawe"
554 #else
555 #define DEV_NAME "sb16"
556 #endif
557 
558 static struct isa_driver snd_sb16_isa_driver = {
559         .match          = snd_sb16_isa_match,
560         .probe          = snd_sb16_isa_probe,
561 #ifdef CONFIG_PM
562         .suspend        = snd_sb16_isa_suspend,
563         .resume         = snd_sb16_isa_resume,
564 #endif
565         .driver         = {
566                 .name   = DEV_NAME
567         },
568 };
569 
570 
571 #ifdef CONFIG_PNP
572 static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
573                                const struct pnp_card_device_id *pid)
574 {
575         static int dev;
576         struct snd_card *card;
577         int res;
578 
579         for ( ; dev < SNDRV_CARDS; dev++) {
580                 if (!enable[dev] || !isapnp[dev])
581                         continue;
582                 res = snd_sb16_card_new(&pcard->card->dev, dev, &card);
583                 if (res < 0)
584                         return res;
585                 res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid);
586                 if (res < 0)
587                         return res;
588                 res = snd_sb16_probe(card, dev);
589                 if (res < 0)
590                         return res;
591                 pnp_set_card_drvdata(pcard, card);
592                 dev++;
593                 return 0;
594         }
595 
596         return -ENODEV;
597 }
598 
599 #ifdef CONFIG_PM
600 static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
601 {
602         return snd_sb16_suspend(pnp_get_card_drvdata(pcard), state);
603 }
604 static int snd_sb16_pnp_resume(struct pnp_card_link *pcard)
605 {
606         return snd_sb16_resume(pnp_get_card_drvdata(pcard));
607 }
608 #endif
609 
610 static struct pnp_card_driver sb16_pnpc_driver = {
611         .flags = PNP_DRIVER_RES_DISABLE,
612 #ifdef SNDRV_SBAWE
613         .name = "sbawe",
614 #else
615         .name = "sb16",
616 #endif
617         .id_table = snd_sb16_pnpids,
618         .probe = snd_sb16_pnp_detect,
619 #ifdef CONFIG_PM
620         .suspend = snd_sb16_pnp_suspend,
621         .resume = snd_sb16_pnp_resume,
622 #endif
623 };
624 
625 #endif /* CONFIG_PNP */
626 
627 static int __init alsa_card_sb16_init(void)
628 {
629         int err;
630 
631         err = isa_register_driver(&snd_sb16_isa_driver, SNDRV_CARDS);
632 #ifdef CONFIG_PNP
633         if (!err)
634                 isa_registered = 1;
635 
636         err = pnp_register_card_driver(&sb16_pnpc_driver);
637         if (!err)
638                 pnp_registered = 1;
639 
640         if (isa_registered)
641                 err = 0;
642 #endif
643         return err;
644 }
645 
646 static void __exit alsa_card_sb16_exit(void)
647 {
648 #ifdef CONFIG_PNP
649         if (pnp_registered)
650                 pnp_unregister_card_driver(&sb16_pnpc_driver);
651         if (isa_registered)
652 #endif
653                 isa_unregister_driver(&snd_sb16_isa_driver);
654 }
655 
656 module_init(alsa_card_sb16_init)
657 module_exit(alsa_card_sb16_exit)
658 

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