xref: /openbmc/linux/sound/isa/cmi8330.c (revision d5cb9783536a41df9f9cba5b0a1d78047ed787f7)
1 /*
2  *  Driver for C-Media's CMI8330 soundcards.
3  *  Copyright (c) by George Talusan <gstalusan@uwaterloo.ca>
4  *    http://www.undergrad.math.uwaterloo.ca/~gstalusa
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 /*
23  * NOTES
24  *
25  *  The extended registers contain mixer settings which are largely
26  *  untapped for the time being.
27  *
28  *  MPU401 and SPDIF are not supported yet.  I don't have the hardware
29  *  to aid in coding and testing, so I won't bother.
30  *
31  *  To quickly load the module,
32  *
33  *  modprobe -a snd-cmi8330 sbport=0x220 sbirq=5 sbdma8=1
34  *    sbdma16=5 wssport=0x530 wssirq=11 wssdma=0
35  *
36  *  This card has two mixers and two PCM devices.  I've cheesed it such
37  *  that recording and playback can be done through the same device.
38  *  The driver "magically" routes the capturing to the AD1848 codec,
39  *  and playback to the SB16 codec.  This allows for full-duplex mode
40  *  to some extent.
41  *  The utilities in alsa-utils are aware of both devices, so passing
42  *  the appropriate parameters to amixer and alsactl will give you
43  *  full control over both mixers.
44  */
45 
46 #include <sound/driver.h>
47 #include <linux/init.h>
48 #include <linux/slab.h>
49 #include <linux/pnp.h>
50 #include <linux/moduleparam.h>
51 #include <sound/core.h>
52 #include <sound/ad1848.h>
53 #include <sound/sb.h>
54 #include <sound/initval.h>
55 
56 /*
57  */
58 /* #define ENABLE_SB_MIXER */
59 #define PLAYBACK_ON_SB
60 
61 /*
62  */
63 MODULE_AUTHOR("George Talusan <gstalusan@uwaterloo.ca>");
64 MODULE_DESCRIPTION("C-Media CMI8330");
65 MODULE_LICENSE("GPL");
66 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8330,isapnp:{CMI0001,@@@0001,@X@0001}}}");
67 
68 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
69 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
70 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP;
71 #ifdef CONFIG_PNP
72 static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
73 #endif
74 static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
75 static int sbirq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
76 static int sbdma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
77 static int sbdma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
78 static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
79 static int wssirq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
80 static int wssdma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
81 
82 module_param_array(index, int, NULL, 0444);
83 MODULE_PARM_DESC(index, "Index value for CMI8330 soundcard.");
84 module_param_array(id, charp, NULL, 0444);
85 MODULE_PARM_DESC(id, "ID string  for CMI8330 soundcard.");
86 module_param_array(enable, bool, NULL, 0444);
87 MODULE_PARM_DESC(enable, "Enable CMI8330 soundcard.");
88 #ifdef CONFIG_PNP
89 module_param_array(isapnp, bool, NULL, 0444);
90 MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
91 #endif
92 
93 module_param_array(sbport, long, NULL, 0444);
94 MODULE_PARM_DESC(sbport, "Port # for CMI8330 SB driver.");
95 module_param_array(sbirq, int, NULL, 0444);
96 MODULE_PARM_DESC(sbirq, "IRQ # for CMI8330 SB driver.");
97 module_param_array(sbdma8, int, NULL, 0444);
98 MODULE_PARM_DESC(sbdma8, "DMA8 for CMI8330 SB driver.");
99 module_param_array(sbdma16, int, NULL, 0444);
100 MODULE_PARM_DESC(sbdma16, "DMA16 for CMI8330 SB driver.");
101 
102 module_param_array(wssport, long, NULL, 0444);
103 MODULE_PARM_DESC(wssport, "Port # for CMI8330 WSS driver.");
104 module_param_array(wssirq, int, NULL, 0444);
105 MODULE_PARM_DESC(wssirq, "IRQ # for CMI8330 WSS driver.");
106 module_param_array(wssdma, int, NULL, 0444);
107 MODULE_PARM_DESC(wssdma, "DMA for CMI8330 WSS driver.");
108 
109 #define CMI8330_RMUX3D    16
110 #define CMI8330_MUTEMUX   17
111 #define CMI8330_OUTPUTVOL 18
112 #define CMI8330_MASTVOL   19
113 #define CMI8330_LINVOL    20
114 #define CMI8330_CDINVOL   21
115 #define CMI8330_WAVVOL    22
116 #define CMI8330_RECMUX    23
117 #define CMI8330_WAVGAIN   24
118 #define CMI8330_LINGAIN   25
119 #define CMI8330_CDINGAIN  26
120 
121 static unsigned char snd_cmi8330_image[((CMI8330_CDINGAIN)-16) + 1] =
122 {
123 	0x40,			/* 16 - recording mux (SB-mixer-enabled) */
124 #ifdef ENABLE_SB_MIXER
125 	0x40,			/* 17 - mute mux (Mode2) */
126 #else
127 	0x0,			/* 17 - mute mux */
128 #endif
129 	0x0,			/* 18 - vol */
130 	0x0,			/* 19 - master volume */
131 	0x0,			/* 20 - line-in volume */
132 	0x0,			/* 21 - cd-in volume */
133 	0x0,			/* 22 - wave volume */
134 	0x0,			/* 23 - mute/rec mux */
135 	0x0,			/* 24 - wave rec gain */
136 	0x0,			/* 25 - line-in rec gain */
137 	0x0			/* 26 - cd-in rec gain */
138 };
139 
140 typedef int (*snd_pcm_open_callback_t)(snd_pcm_substream_t *);
141 
142 struct snd_cmi8330 {
143 #ifdef CONFIG_PNP
144 	struct pnp_dev *cap;
145 	struct pnp_dev *play;
146 #endif
147 	snd_card_t *card;
148 	ad1848_t *wss;
149 	sb_t *sb;
150 
151 	snd_pcm_t *pcm;
152 	struct snd_cmi8330_stream {
153 		snd_pcm_ops_t ops;
154 		snd_pcm_open_callback_t open;
155 		void *private_data; /* sb or wss */
156 	} streams[2];
157 };
158 
159 static snd_card_t *snd_cmi8330_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
160 
161 #ifdef CONFIG_PNP
162 
163 static struct pnp_card_device_id snd_cmi8330_pnpids[] = {
164 	{ .id = "CMI0001", .devs = { { "@@@0001" }, { "@X@0001" } } },
165 	{ .id = "" }
166 };
167 
168 MODULE_DEVICE_TABLE(pnp_card, snd_cmi8330_pnpids);
169 
170 #endif
171 
172 
173 static struct ad1848_mix_elem snd_cmi8330_controls[] __initdata = {
174 AD1848_DOUBLE("Master Playback Volume", 0, CMI8330_MASTVOL, CMI8330_MASTVOL, 4, 0, 15, 0),
175 AD1848_SINGLE("Loud Playback Switch", 0, CMI8330_MUTEMUX, 6, 1, 1),
176 AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
177 AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),
178 AD1848_DOUBLE("Line Playback Switch", 0, CMI8330_MUTEMUX, CMI8330_MUTEMUX, 4, 3, 1, 0),
179 AD1848_DOUBLE("Line Playback Volume", 0, CMI8330_LINVOL, CMI8330_LINVOL, 4, 0, 15, 0),
180 AD1848_DOUBLE("Line Capture Switch", 0, CMI8330_RMUX3D, CMI8330_RMUX3D, 2, 1, 1, 0),
181 AD1848_DOUBLE("Line Capture Volume", 0, CMI8330_LINGAIN, CMI8330_LINGAIN, 4, 0, 15, 0),
182 AD1848_DOUBLE("CD Playback Switch", 0, CMI8330_MUTEMUX, CMI8330_MUTEMUX, 2, 1, 1, 0),
183 AD1848_DOUBLE("CD Capture Switch", 0, CMI8330_RMUX3D, CMI8330_RMUX3D, 4, 3, 1, 0),
184 AD1848_DOUBLE("CD Playback Volume", 0, CMI8330_CDINVOL, CMI8330_CDINVOL, 4, 0, 15, 0),
185 AD1848_DOUBLE("CD Capture Volume", 0, CMI8330_CDINGAIN, CMI8330_CDINGAIN, 4, 0, 15, 0),
186 AD1848_SINGLE("Mic Playback Switch", 0, CMI8330_MUTEMUX, 0, 1, 0),
187 AD1848_SINGLE("Mic Playback Volume", 0, CMI8330_OUTPUTVOL, 0, 7, 0),
188 AD1848_SINGLE("Mic Capture Switch", 0, CMI8330_RMUX3D, 0, 1, 0),
189 AD1848_SINGLE("Mic Capture Volume", 0, CMI8330_OUTPUTVOL, 5, 7, 0),
190 AD1848_DOUBLE("Wavetable Playback Switch", 0, CMI8330_RECMUX, CMI8330_RECMUX, 1, 0, 1, 0),
191 AD1848_DOUBLE("Wavetable Playback Volume", 0, CMI8330_WAVVOL, CMI8330_WAVVOL, 4, 0, 15, 0),
192 AD1848_DOUBLE("Wavetable Capture Switch", 0, CMI8330_RECMUX, CMI8330_RECMUX, 5, 4, 1, 0),
193 AD1848_DOUBLE("Wavetable Capture Volume", 0, CMI8330_WAVGAIN, CMI8330_WAVGAIN, 4, 0, 15, 0),
194 AD1848_SINGLE("3D Control - Switch", 0, CMI8330_RMUX3D, 5, 1, 1),
195 AD1848_SINGLE("PC Speaker Playback Volume", 0, CMI8330_OUTPUTVOL, 3, 3, 0),
196 AD1848_SINGLE("FM Playback Switch", 0, CMI8330_RECMUX, 3, 1, 1),
197 AD1848_SINGLE(SNDRV_CTL_NAME_IEC958("Input ",CAPTURE,SWITCH), 0, CMI8330_RMUX3D, 7, 1, 1),
198 AD1848_SINGLE(SNDRV_CTL_NAME_IEC958("Input ",PLAYBACK,SWITCH), 0, CMI8330_MUTEMUX, 7, 1, 1),
199 };
200 
201 #ifdef ENABLE_SB_MIXER
202 static struct sbmix_elem cmi8330_sb_mixers[] __initdata = {
203 SB_DOUBLE("SB Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31),
204 SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15),
205 SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15),
206 SB_DOUBLE("SB PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31),
207 SB_DOUBLE("SB Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31),
208 SB_DOUBLE("SB CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1),
209 SB_DOUBLE("SB CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31),
210 SB_DOUBLE("SB Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1),
211 SB_DOUBLE("SB Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31),
212 SB_SINGLE("SB Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1),
213 SB_SINGLE("SB Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31),
214 SB_SINGLE("SB PC Speaker Volume", SB_DSP4_SPEAKER_DEV, 6, 3),
215 SB_DOUBLE("SB Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3),
216 SB_DOUBLE("SB Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3),
217 SB_SINGLE("SB Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1),
218 };
219 
220 static unsigned char cmi8330_sb_init_values[][2] __initdata = {
221 	{ SB_DSP4_MASTER_DEV + 0, 0 },
222 	{ SB_DSP4_MASTER_DEV + 1, 0 },
223 	{ SB_DSP4_PCM_DEV + 0, 0 },
224 	{ SB_DSP4_PCM_DEV + 1, 0 },
225 	{ SB_DSP4_SYNTH_DEV + 0, 0 },
226 	{ SB_DSP4_SYNTH_DEV + 1, 0 },
227 	{ SB_DSP4_INPUT_LEFT, 0 },
228 	{ SB_DSP4_INPUT_RIGHT, 0 },
229 	{ SB_DSP4_OUTPUT_SW, 0 },
230 	{ SB_DSP4_SPEAKER_DEV, 0 },
231 };
232 
233 
234 static int __devinit cmi8330_add_sb_mixers(sb_t *chip)
235 {
236 	int idx, err;
237 	unsigned long flags;
238 
239 	spin_lock_irqsave(&chip->mixer_lock, flags);
240 	snd_sbmixer_write(chip, 0x00, 0x00);		/* mixer reset */
241 	spin_unlock_irqrestore(&chip->mixer_lock, flags);
242 
243 	/* mute and zero volume channels */
244 	for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_init_values); idx++) {
245 		spin_lock_irqsave(&chip->mixer_lock, flags);
246 		snd_sbmixer_write(chip, cmi8330_sb_init_values[idx][0],
247 				  cmi8330_sb_init_values[idx][1]);
248 		spin_unlock_irqrestore(&chip->mixer_lock, flags);
249 	}
250 
251 	for (idx = 0; idx < ARRAY_SIZE(cmi8330_sb_mixers); idx++) {
252 		if ((err = snd_sbmixer_add_ctl_elem(chip, &cmi8330_sb_mixers[idx])) < 0)
253 			return err;
254 	}
255 	return 0;
256 }
257 #endif
258 
259 static int __devinit snd_cmi8330_mixer(snd_card_t *card, struct snd_cmi8330 *acard)
260 {
261 	unsigned int idx;
262 	int err;
263 
264 	strcpy(card->mixername, "CMI8330/C3D");
265 
266 	for (idx = 0; idx < ARRAY_SIZE(snd_cmi8330_controls); idx++) {
267 		if ((err = snd_ad1848_add_ctl_elem(acard->wss, &snd_cmi8330_controls[idx])) < 0)
268 			return err;
269 	}
270 
271 #ifdef ENABLE_SB_MIXER
272 	if ((err = cmi8330_add_sb_mixers(acard->sb)) < 0)
273 		return err;
274 #endif
275 	return 0;
276 }
277 
278 #ifdef CONFIG_PNP
279 static int __devinit snd_cmi8330_pnp(int dev, struct snd_cmi8330 *acard,
280 				     struct pnp_card_link *card,
281 				     const struct pnp_card_device_id *id)
282 {
283 	struct pnp_dev *pdev;
284 	struct pnp_resource_table * cfg = kmalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
285 	int err;
286 
287 	acard->cap = pnp_request_card_device(card, id->devs[0].id, NULL);
288 	if (acard->cap == NULL) {
289 		kfree(cfg);
290 		return -EBUSY;
291 	}
292 	acard->play = pnp_request_card_device(card, id->devs[1].id, NULL);
293 	if (acard->play == NULL) {
294 		kfree(cfg);
295 		return -EBUSY;
296 	}
297 
298 	pdev = acard->cap;
299 	pnp_init_resource_table(cfg);
300 	/* allocate AD1848 resources */
301 	if (wssport[dev] != SNDRV_AUTO_PORT)
302 		pnp_resource_change(&cfg->port_resource[0], wssport[dev], 8);
303 	if (wssdma[dev] != SNDRV_AUTO_DMA)
304 		pnp_resource_change(&cfg->dma_resource[0], wssdma[dev], 1);
305 	if (wssirq[dev] != SNDRV_AUTO_IRQ)
306 		pnp_resource_change(&cfg->irq_resource[0], wssirq[dev], 1);
307 
308 	err = pnp_manual_config_dev(pdev, cfg, 0);
309 	if (err < 0)
310 		snd_printk(KERN_ERR "CMI8330/C3D (AD1848) PnP manual resources are invalid, using auto config\n");
311 	err = pnp_activate_dev(pdev);
312 	if (err < 0) {
313 		snd_printk(KERN_ERR "CMI8330/C3D (AD1848) PnP configure failure\n");
314 		kfree(cfg);
315 		return -EBUSY;
316 	}
317 	wssport[dev] = pnp_port_start(pdev, 0);
318 	wssdma[dev] = pnp_dma(pdev, 0);
319 	wssirq[dev] = pnp_irq(pdev, 0);
320 
321 	/* allocate SB16 resources */
322 	pdev = acard->play;
323 	pnp_init_resource_table(cfg);
324 	if (sbport[dev] != SNDRV_AUTO_PORT)
325 		pnp_resource_change(&cfg->port_resource[0], sbport[dev], 16);
326 	if (sbdma8[dev] != SNDRV_AUTO_DMA)
327 		pnp_resource_change(&cfg->dma_resource[0], sbdma8[dev], 1);
328 	if (sbdma16[dev] != SNDRV_AUTO_DMA)
329 		pnp_resource_change(&cfg->dma_resource[1], sbdma16[dev], 1);
330 	if (sbirq[dev] != SNDRV_AUTO_IRQ)
331 		pnp_resource_change(&cfg->irq_resource[0], sbirq[dev], 1);
332 
333 	err = pnp_manual_config_dev(pdev, cfg, 0);
334 	if (err < 0)
335 		snd_printk(KERN_ERR "CMI8330/C3D (SB16) PnP manual resources are invalid, using auto config\n");
336 	err = pnp_activate_dev(pdev);
337 	if (err < 0) {
338 		snd_printk(KERN_ERR "CMI8330/C3D (SB16) PnP configure failure\n");
339 		kfree(cfg);
340 		return -EBUSY;
341 	}
342 	sbport[dev] = pnp_port_start(pdev, 0);
343 	sbdma8[dev] = pnp_dma(pdev, 0);
344 	sbdma16[dev] = pnp_dma(pdev, 1);
345 	sbirq[dev] = pnp_irq(pdev, 0);
346 
347 	kfree(cfg);
348 	return 0;
349 }
350 #endif
351 
352 /*
353  * PCM interface
354  *
355  * since we call the different chip interfaces for playback and capture
356  * directions, we need a trick.
357  *
358  * - copy the ops for each direction into a local record.
359  * - replace the open callback with the new one, which replaces the
360  *   substream->private_data with the corresponding chip instance
361  *   and calls again the original open callback of the chip.
362  *
363  */
364 
365 #ifdef PLAYBACK_ON_SB
366 #define CMI_SB_STREAM	SNDRV_PCM_STREAM_PLAYBACK
367 #define CMI_AD_STREAM	SNDRV_PCM_STREAM_CAPTURE
368 #else
369 #define CMI_SB_STREAM	SNDRV_PCM_STREAM_CAPTURE
370 #define CMI_AD_STREAM	SNDRV_PCM_STREAM_PLAYBACK
371 #endif
372 
373 static int snd_cmi8330_playback_open(snd_pcm_substream_t * substream)
374 {
375 	struct snd_cmi8330 *chip = snd_pcm_substream_chip(substream);
376 
377 	/* replace the private_data and call the original open callback */
378 	substream->private_data = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].private_data;
379 	return chip->streams[SNDRV_PCM_STREAM_PLAYBACK].open(substream);
380 }
381 
382 static int snd_cmi8330_capture_open(snd_pcm_substream_t * substream)
383 {
384 	struct snd_cmi8330 *chip = snd_pcm_substream_chip(substream);
385 
386 	/* replace the private_data and call the original open callback */
387 	substream->private_data = chip->streams[SNDRV_PCM_STREAM_CAPTURE].private_data;
388 	return chip->streams[SNDRV_PCM_STREAM_CAPTURE].open(substream);
389 }
390 
391 static void snd_cmi8330_pcm_free(snd_pcm_t *pcm)
392 {
393 	snd_pcm_lib_preallocate_free_for_all(pcm);
394 }
395 
396 static int __devinit snd_cmi8330_pcm(snd_card_t *card, struct snd_cmi8330 *chip)
397 {
398 	snd_pcm_t *pcm;
399 	const snd_pcm_ops_t *ops;
400 	int err;
401 	static snd_pcm_open_callback_t cmi_open_callbacks[2] = {
402 		snd_cmi8330_playback_open,
403 		snd_cmi8330_capture_open
404 	};
405 
406 	if ((err = snd_pcm_new(card, "CMI8330", 0, 1, 1, &pcm)) < 0)
407 		return err;
408 	strcpy(pcm->name, "CMI8330");
409 	pcm->private_data = chip;
410 	pcm->private_free = snd_cmi8330_pcm_free;
411 
412 	/* SB16 */
413 	ops = snd_sb16dsp_get_pcm_ops(CMI_SB_STREAM);
414 	chip->streams[CMI_SB_STREAM].ops = *ops;
415 	chip->streams[CMI_SB_STREAM].open = ops->open;
416 	chip->streams[CMI_SB_STREAM].ops.open = cmi_open_callbacks[CMI_SB_STREAM];
417 	chip->streams[CMI_SB_STREAM].private_data = chip->sb;
418 
419 	/* AD1848 */
420 	ops = snd_ad1848_get_pcm_ops(CMI_AD_STREAM);
421 	chip->streams[CMI_AD_STREAM].ops = *ops;
422 	chip->streams[CMI_AD_STREAM].open = ops->open;
423 	chip->streams[CMI_AD_STREAM].ops.open = cmi_open_callbacks[CMI_AD_STREAM];
424 	chip->streams[CMI_AD_STREAM].private_data = chip->wss;
425 
426 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK].ops);
427 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &chip->streams[SNDRV_PCM_STREAM_CAPTURE].ops);
428 
429 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
430 					      snd_dma_isa_data(),
431 					      64*1024, 128*1024);
432 	chip->pcm = pcm;
433 
434 	return 0;
435 }
436 
437 
438 /*
439  */
440 
441 #ifdef CONFIG_PNP
442 #define is_isapnp_selected(dev)		isapnp[dev]
443 #else
444 #define is_isapnp_selected(dev)		0
445 #endif
446 
447 #define PFX	"cmi8330: "
448 
449 static int __devinit snd_cmi8330_probe(int dev,
450 				       struct pnp_card_link *pcard,
451 				       const struct pnp_card_device_id *pid)
452 {
453 	snd_card_t *card;
454 	struct snd_cmi8330 *acard;
455 	int i, err;
456 
457 	if (! is_isapnp_selected(dev)) {
458 		if (wssport[dev] == SNDRV_AUTO_PORT) {
459 			snd_printk(KERN_ERR PFX "specify wssport\n");
460 			return -EINVAL;
461 		}
462 		if (sbport[dev] == SNDRV_AUTO_PORT) {
463 			snd_printk(KERN_ERR PFX "specify sbport\n");
464 			return -EINVAL;
465 		}
466 	}
467 
468 	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
469 			    sizeof(struct snd_cmi8330));
470 	if (card == NULL) {
471 		snd_printk(KERN_ERR PFX "could not get a new card\n");
472 		return -ENOMEM;
473 	}
474 	acard = (struct snd_cmi8330 *)card->private_data;
475 	acard->card = card;
476 
477 #ifdef CONFIG_PNP
478 	if (isapnp[dev]) {
479 		if ((err = snd_cmi8330_pnp(dev, acard, pcard, pid)) < 0) {
480 			snd_printk(KERN_ERR PFX "PnP detection failed\n");
481 			goto _err;
482 		}
483 		snd_card_set_dev(card, &pcard->card->dev);
484 	}
485 #endif
486 
487 	if ((err = snd_ad1848_create(card,
488 				     wssport[dev] + 4,
489 				     wssirq[dev],
490 				     wssdma[dev],
491 				     AD1848_HW_DETECT,
492 				     &acard->wss)) < 0) {
493 		snd_printk(KERN_ERR PFX "(AD1848) device busy??\n");
494 		goto _err;
495 	}
496 	if (acard->wss->hardware != AD1848_HW_CMI8330) {
497 		snd_printk(KERN_ERR PFX "(AD1848) not found during probe\n");
498 		err = -ENODEV;
499 		goto _err;
500 	}
501 
502 	if ((err = snd_sbdsp_create(card, sbport[dev],
503 				    sbirq[dev],
504 				    snd_sb16dsp_interrupt,
505 				    sbdma8[dev],
506 				    sbdma16[dev],
507 				    SB_HW_AUTO, &acard->sb)) < 0) {
508 		snd_printk(KERN_ERR PFX "(SB16) device busy??\n");
509 		goto _err;
510 	}
511 	if (acard->sb->hardware != SB_HW_16) {
512 		snd_printk(KERN_ERR PFX "(SB16) not found during probe\n");
513 		goto _err;
514 	}
515 
516 	snd_ad1848_out(acard->wss, AD1848_MISC_INFO, 0x40); /* switch on MODE2 */
517 	for (i = CMI8330_RMUX3D; i <= CMI8330_CDINGAIN; i++)
518 		snd_ad1848_out(acard->wss, i, snd_cmi8330_image[i - CMI8330_RMUX3D]);
519 
520 	if ((err = snd_cmi8330_mixer(card, acard)) < 0) {
521 		snd_printk(KERN_ERR PFX "failed to create mixers\n");
522 		goto _err;
523 	}
524 
525 	if ((err = snd_cmi8330_pcm(card, acard)) < 0) {
526 		snd_printk(KERN_ERR PFX "failed to create pcms\n");
527 		goto _err;
528 	}
529 
530 	strcpy(card->driver, "CMI8330/C3D");
531 	strcpy(card->shortname, "C-Media CMI8330/C3D");
532 	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
533 		card->shortname,
534 		acard->wss->port,
535 		wssirq[dev],
536 		wssdma[dev]);
537 
538 	if ((err = snd_card_set_generic_dev(card)) < 0)
539 		goto _err;
540 
541 	if ((err = snd_card_register(card)) < 0)
542 		goto _err;
543 
544 	if (pcard)
545 		pnp_set_card_drvdata(pcard, card);
546 	else
547 		snd_cmi8330_legacy[dev] = card;
548 	return 0;
549 
550  _err:
551 	snd_card_free(card);
552 	return err;
553 }
554 
555 #ifdef CONFIG_PNP
556 static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *card,
557 					    const struct pnp_card_device_id *id)
558 {
559 	static int dev;
560 	int res;
561 
562 	for ( ; dev < SNDRV_CARDS; dev++) {
563 		if (!enable[dev] || !isapnp[dev])
564 			continue;
565 		res = snd_cmi8330_probe(dev, card, id);
566 		if (res < 0)
567 			return res;
568 		dev++;
569 		return 0;
570 	}
571 	return -ENODEV;
572 }
573 
574 static void __devexit snd_cmi8330_pnp_remove(struct pnp_card_link * pcard)
575 {
576 	snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
577 
578 	snd_card_disconnect(card);
579 	snd_card_free_in_thread(card);
580 }
581 
582 static struct pnp_card_driver cmi8330_pnpc_driver = {
583 	.flags = PNP_DRIVER_RES_DISABLE,
584 	.name = "cmi8330",
585 	.id_table = snd_cmi8330_pnpids,
586 	.probe = snd_cmi8330_pnp_detect,
587 	.remove = __devexit_p(snd_cmi8330_pnp_remove),
588 };
589 #endif /* CONFIG_PNP */
590 
591 static int __init alsa_card_cmi8330_init(void)
592 {
593 	int dev, cards = 0;
594 
595 	for (dev = 0; dev < SNDRV_CARDS; dev++) {
596 		if (!enable[dev])
597 			continue;
598 		if (is_isapnp_selected(dev))
599 			continue;
600 		if (snd_cmi8330_probe(dev, NULL, NULL) >= 0)
601 			cards++;
602 	}
603 #ifdef CONFIG_PNP
604 	cards += pnp_register_card_driver(&cmi8330_pnpc_driver);
605 #endif
606 
607 	if (!cards) {
608 #ifdef CONFIG_PNP
609 		pnp_unregister_card_driver(&cmi8330_pnpc_driver);
610 #endif
611 #ifdef MODULE
612 		snd_printk(KERN_ERR "CMI8330 not found or device busy\n");
613 #endif
614 		return -ENODEV;
615 	}
616 	return 0;
617 }
618 
619 static void __exit alsa_card_cmi8330_exit(void)
620 {
621 	int i;
622 
623 #ifdef CONFIG_PNP
624 	/* PnP cards first */
625 	pnp_unregister_card_driver(&cmi8330_pnpc_driver);
626 #endif
627 	for (i = 0; i < SNDRV_CARDS; i++)
628 		snd_card_free(snd_cmi8330_legacy[i]);
629 }
630 
631 module_init(alsa_card_cmi8330_init)
632 module_exit(alsa_card_cmi8330_exit)
633