1/*
2 *  Driver for generic CS4232/CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 chips
3 *  Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
23#include <linux/err.h>
24#include <linux/isa.h>
25#include <linux/pnp.h>
26#include <linux/module.h>
27#include <sound/core.h>
28#include <sound/wss.h>
29#include <sound/mpu401.h>
30#include <sound/opl3.h>
31#include <sound/initval.h>
32
33MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34MODULE_LICENSE("GPL");
35MODULE_DESCRIPTION("Cirrus Logic CS4232-9");
36MODULE_SUPPORTED_DEVICE("{{Turtle Beach,TBS-2000},"
37		"{Turtle Beach,Tropez Plus},"
38		"{SIC CrystalWave 32},"
39		"{Hewlett Packard,Omnibook 5500},"
40		"{TerraTec,Maestro 32/96},"
41		"{Philips,PCA70PS}},"
42		"{{Crystal Semiconductors,CS4235},"
43		"{Crystal Semiconductors,CS4236},"
44		"{Crystal Semiconductors,CS4237},"
45		"{Crystal Semiconductors,CS4238},"
46		"{Crystal Semiconductors,CS4239},"
47		"{Acer,AW37},"
48		"{Acer,AW35/Pro},"
49		"{Crystal,3D},"
50		"{Crystal Computer,TidalWave128},"
51		"{Dell,Optiplex GX1},"
52		"{Dell,Workstation 400 sound},"
53		"{EliteGroup,P5TX-LA sound},"
54		"{Gallant,SC-70P},"
55		"{Gateway,E1000 Onboard CS4236B},"
56		"{Genius,Sound Maker 3DJ},"
57		"{Hewlett Packard,HP6330 sound},"
58		"{IBM,PC 300PL sound},"
59		"{IBM,Aptiva 2137 E24},"
60		"{IBM,IntelliStation M Pro},"
61		"{Intel,Marlin Spike Mobo CS4235},"
62		"{Intel PR440FX Onboard},"
63		"{Guillemot,MaxiSound 16 PnP},"
64		"{NewClear,3D},"
65		"{TerraTec,AudioSystem EWS64L/XL},"
66		"{Typhoon Soundsystem,CS4236B},"
67		"{Turtle Beach,Malibu},"
68		"{Unknown,Digital PC 5000 Onboard}}");
69
70MODULE_ALIAS("snd_cs4232");
71
72#define IDENT "CS4232+"
73#define DEV_NAME "cs4232+"
74
75static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
76static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
77static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
78#ifdef CONFIG_PNP
79static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
80#endif
81static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
82static long cport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
83static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;/* PnP setup */
84static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
85static long sb_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
86static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
87static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
88static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
89static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
90
91module_param_array(index, int, NULL, 0444);
92MODULE_PARM_DESC(index, "Index value for " IDENT " soundcard.");
93module_param_array(id, charp, NULL, 0444);
94MODULE_PARM_DESC(id, "ID string for " IDENT " soundcard.");
95module_param_array(enable, bool, NULL, 0444);
96MODULE_PARM_DESC(enable, "Enable " IDENT " soundcard.");
97#ifdef CONFIG_PNP
98module_param_array(isapnp, bool, NULL, 0444);
99MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
100#endif
101module_param_array(port, long, NULL, 0444);
102MODULE_PARM_DESC(port, "Port # for " IDENT " driver.");
103module_param_array(cport, long, NULL, 0444);
104MODULE_PARM_DESC(cport, "Control port # for " IDENT " driver.");
105module_param_array(mpu_port, long, NULL, 0444);
106MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " IDENT " driver.");
107module_param_array(fm_port, long, NULL, 0444);
108MODULE_PARM_DESC(fm_port, "FM port # for " IDENT " driver.");
109module_param_array(sb_port, long, NULL, 0444);
110MODULE_PARM_DESC(sb_port, "SB port # for " IDENT " driver (optional).");
111module_param_array(irq, int, NULL, 0444);
112MODULE_PARM_DESC(irq, "IRQ # for " IDENT " driver.");
113module_param_array(mpu_irq, int, NULL, 0444);
114MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " IDENT " driver.");
115module_param_array(dma1, int, NULL, 0444);
116MODULE_PARM_DESC(dma1, "DMA1 # for " IDENT " driver.");
117module_param_array(dma2, int, NULL, 0444);
118MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
119
120#ifdef CONFIG_PNP
121static int isa_registered;
122static int pnpc_registered;
123static int pnp_registered;
124#endif /* CONFIG_PNP */
125
126struct snd_card_cs4236 {
127	struct snd_wss *chip;
128	struct resource *res_sb_port;
129#ifdef CONFIG_PNP
130	struct pnp_dev *wss;
131	struct pnp_dev *ctrl;
132	struct pnp_dev *mpu;
133#endif
134};
135
136#ifdef CONFIG_PNP
137
138/*
139 * PNP BIOS
140 */
141static const struct pnp_device_id snd_cs423x_pnpbiosids[] = {
142	{ .id = "CSC0100" },
143	{ .id = "CSC0000" },
144	/* Guillemot Turtlebeach something appears to be cs4232 compatible
145	 * (untested) */
146	{ .id = "GIM0100" },
147	{ .id = "" }
148};
149MODULE_DEVICE_TABLE(pnp, snd_cs423x_pnpbiosids);
150
151#define CS423X_ISAPNP_DRIVER	"cs4232_isapnp"
152static struct pnp_card_device_id snd_cs423x_pnpids[] = {
153	/* Philips PCA70PS */
154	{ .id = "CSC0d32", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
155	/* TerraTec Maestro 32/96 (CS4232) */
156	{ .id = "CSC1a32", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
157	/* HP Omnibook 5500 onboard */
158	{ .id = "CSC4232", .devs = { { "CSC0000" }, { "CSC0002" }, { "CSC0003" } } },
159	/* Unnamed CS4236 card (Made in Taiwan) */
160	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
161	/* Turtle Beach TBS-2000 (CS4232) */
162	{ .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSCb006" } } },
163	/* Turtle Beach Tropez Plus (CS4232) */
164	{ .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
165	/* SIC CrystalWave 32 (CS4232) */
166	{ .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
167	/* Netfinity 3000 on-board soundcard */
168	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC010f" } } },
169	/* Intel Marlin Spike Motherboard - CS4235 */
170	{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
171	/* Intel Marlin Spike Motherboard (#2) - CS4235 */
172	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
173	/* Unknown Intel mainboard - CS4235 */
174	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" } } },
175	/* Genius Sound Maker 3DJ - CS4237B */
176	{ .id = "CSC0437", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
177	/* Digital PC 5000 Onboard - CS4236B */
178	{ .id = "CSC0735", .devs = { { "CSC0000" }, { "CSC0010" } } },
179	/* some unknown CS4236B */
180	{ .id = "CSC0b35", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
181	/* Intel PR440FX Onboard sound */
182	{ .id = "CSC0b36", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
183	/* CS4235 on mainboard without MPU */
184	{ .id = "CSC1425", .devs = { { "CSC0100" }, { "CSC0110" } } },
185	/* Gateway E1000 Onboard CS4236B */
186	{ .id = "CSC1335", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
187	/* HP 6330 Onboard sound */
188	{ .id = "CSC1525", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
189	/* Crystal Computer TidalWave128 */
190	{ .id = "CSC1e37", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
191	/* ACER AW37 - CS4235 */
192	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
193	/* build-in soundcard in EliteGroup P5TX-LA motherboard - CS4237B */
194	{ .id = "CSC4237", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
195	/* Crystal 3D - CS4237B */
196	{ .id = "CSC4336", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
197	/* Typhoon Soundsystem PnP - CS4236B */
198	{ .id = "CSC4536", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
199	/* Crystal CX4235-XQ3 EP - CS4235 */
200	{ .id = "CSC4625", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
201	/* Crystal Semiconductors CS4237B */
202	{ .id = "CSC4637", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
203	/* NewClear 3D - CX4237B-XQ3 */
204	{ .id = "CSC4837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
205	/* Dell Optiplex GX1 - CS4236B */
206	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
207	/* Dell P410 motherboard - CS4236B */
208	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" } } },
209	/* Dell Workstation 400 Onboard - CS4236B */
210	{ .id = "CSC6836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
211	/* Turtle Beach Malibu - CS4237B */
212	{ .id = "CSC7537", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
213	/* CS4235 - onboard */
214	{ .id = "CSC8025", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
215	/* IBM Aptiva 2137 E24 Onboard - CS4237B */
216	{ .id = "CSC8037", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
217	/* IBM IntelliStation M Pro motherboard */
218	{ .id = "CSCc835", .devs = { { "CSC0000" }, { "CSC0010" } } },
219	/* Guillemot MaxiSound 16 PnP - CS4236B */
220	{ .id = "CSC9836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
221	/* Gallant SC-70P */
222	{ .id = "CSC9837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
223	/* Techmakers MF-4236PW */
224	{ .id = "CSCa736", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
225	/* TerraTec AudioSystem EWS64XL - CS4236B */
226	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" }, { "CSCa803" } } },
227	/* TerraTec AudioSystem EWS64XL - CS4236B */
228	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" } } },
229	/* ACER AW37/Pro - CS4235 */
230	{ .id = "CSCd925", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
231	/* ACER AW35/Pro - CS4237B */
232	{ .id = "CSCd937", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
233	/* CS4235 without MPU401 */
234	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" } } },
235	/* Unknown SiS530 - CS4235 */
236	{ .id = "CSC4825", .devs = { { "CSC0100" }, { "CSC0110" } } },
237	/* IBM IntelliStation M Pro 6898 11U - CS4236B */
238	{ .id = "CSCe835", .devs = { { "CSC0000" }, { "CSC0010" } } },
239	/* IBM PC 300PL Onboard - CS4236B */
240	{ .id = "CSCe836", .devs = { { "CSC0000" }, { "CSC0010" } } },
241	/* Some noname CS4236 based card */
242	{ .id = "CSCe936", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
243	/* CS4236B */
244	{ .id = "CSCf235", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
245	/* CS4236B */
246	{ .id = "CSCf238", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
247	/* --- */
248	{ .id = "" }	/* end */
249};
250
251MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
252
253/* WSS initialization */
254static int snd_cs423x_pnp_init_wss(int dev, struct pnp_dev *pdev)
255{
256	if (pnp_activate_dev(pdev) < 0) {
257		printk(KERN_ERR IDENT " WSS PnP configure failed for WSS (out of resources?)\n");
258		return -EBUSY;
259	}
260	port[dev] = pnp_port_start(pdev, 0);
261	if (fm_port[dev] > 0)
262		fm_port[dev] = pnp_port_start(pdev, 1);
263	sb_port[dev] = pnp_port_start(pdev, 2);
264	irq[dev] = pnp_irq(pdev, 0);
265	dma1[dev] = pnp_dma(pdev, 0);
266	dma2[dev] = pnp_dma(pdev, 1) == 4 ? -1 : (int)pnp_dma(pdev, 1);
267	snd_printdd("isapnp WSS: wss port=0x%lx, fm port=0x%lx, sb port=0x%lx\n",
268			port[dev], fm_port[dev], sb_port[dev]);
269	snd_printdd("isapnp WSS: irq=%i, dma1=%i, dma2=%i\n",
270			irq[dev], dma1[dev], dma2[dev]);
271	return 0;
272}
273
274/* CTRL initialization */
275static int snd_cs423x_pnp_init_ctrl(int dev, struct pnp_dev *pdev)
276{
277	if (pnp_activate_dev(pdev) < 0) {
278		printk(KERN_ERR IDENT " CTRL PnP configure failed for WSS (out of resources?)\n");
279		return -EBUSY;
280	}
281	cport[dev] = pnp_port_start(pdev, 0);
282	snd_printdd("isapnp CTRL: control port=0x%lx\n", cport[dev]);
283	return 0;
284}
285
286/* MPU initialization */
287static int snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
288{
289	if (pnp_activate_dev(pdev) < 0) {
290		printk(KERN_ERR IDENT " MPU401 PnP configure failed for WSS (out of resources?)\n");
291		mpu_port[dev] = SNDRV_AUTO_PORT;
292		mpu_irq[dev] = SNDRV_AUTO_IRQ;
293	} else {
294		mpu_port[dev] = pnp_port_start(pdev, 0);
295		if (mpu_irq[dev] >= 0 &&
296		    pnp_irq_valid(pdev, 0) && pnp_irq(pdev, 0) >= 0) {
297			mpu_irq[dev] = pnp_irq(pdev, 0);
298		} else {
299			mpu_irq[dev] = -1;	/* disable interrupt */
300		}
301	}
302	snd_printdd("isapnp MPU: port=0x%lx, irq=%i\n", mpu_port[dev], mpu_irq[dev]);
303	return 0;
304}
305
306static int snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
307			       struct pnp_dev *pdev,
308			       struct pnp_dev *cdev)
309{
310	acard->wss = pdev;
311	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
312		return -EBUSY;
313	if (cdev)
314		cport[dev] = pnp_port_start(cdev, 0);
315	else
316		cport[dev] = -1;
317	return 0;
318}
319
320static int snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
321				struct pnp_card_link *card,
322				const struct pnp_card_device_id *id)
323{
324	acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
325	if (acard->wss == NULL)
326		return -EBUSY;
327	acard->ctrl = pnp_request_card_device(card, id->devs[1].id, NULL);
328	if (acard->ctrl == NULL)
329		return -EBUSY;
330	if (id->devs[2].id[0]) {
331		acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
332		if (acard->mpu == NULL)
333			return -EBUSY;
334	}
335
336	/* WSS initialization */
337	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
338		return -EBUSY;
339
340	/* CTRL initialization */
341	if (acard->ctrl && cport[dev] > 0) {
342		if (snd_cs423x_pnp_init_ctrl(dev, acard->ctrl) < 0)
343			return -EBUSY;
344	}
345	/* MPU initialization */
346	if (acard->mpu && mpu_port[dev] > 0) {
347		if (snd_cs423x_pnp_init_mpu(dev, acard->mpu) < 0)
348			return -EBUSY;
349	}
350	return 0;
351}
352#endif /* CONFIG_PNP */
353
354#ifdef CONFIG_PNP
355#define is_isapnp_selected(dev)		isapnp[dev]
356#else
357#define is_isapnp_selected(dev)		0
358#endif
359
360static void snd_card_cs4236_free(struct snd_card *card)
361{
362	struct snd_card_cs4236 *acard = card->private_data;
363
364	release_and_free_resource(acard->res_sb_port);
365}
366
367static int snd_cs423x_card_new(struct device *pdev, int dev,
368			       struct snd_card **cardp)
369{
370	struct snd_card *card;
371	int err;
372
373	err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
374			   sizeof(struct snd_card_cs4236), &card);
375	if (err < 0)
376		return err;
377	card->private_free = snd_card_cs4236_free;
378	*cardp = card;
379	return 0;
380}
381
382static int snd_cs423x_probe(struct snd_card *card, int dev)
383{
384	struct snd_card_cs4236 *acard;
385	struct snd_wss *chip;
386	struct snd_opl3 *opl3;
387	int err;
388
389	acard = card->private_data;
390	if (sb_port[dev] > 0 && sb_port[dev] != SNDRV_AUTO_PORT)
391		if ((acard->res_sb_port = request_region(sb_port[dev], 16, IDENT " SB")) == NULL) {
392			printk(KERN_ERR IDENT ": unable to register SB port at 0x%lx\n", sb_port[dev]);
393			return -EBUSY;
394		}
395
396	err = snd_cs4236_create(card, port[dev], cport[dev],
397			     irq[dev],
398			     dma1[dev], dma2[dev],
399			     WSS_HW_DETECT3, 0, &chip);
400	if (err < 0)
401		return err;
402
403	acard->chip = chip;
404	if (chip->hardware & WSS_HW_CS4236B_MASK) {
405
406		err = snd_cs4236_pcm(chip, 0);
407		if (err < 0)
408			return err;
409
410		err = snd_cs4236_mixer(chip);
411		if (err < 0)
412			return err;
413	} else {
414		err = snd_wss_pcm(chip, 0);
415		if (err < 0)
416			return err;
417
418		err = snd_wss_mixer(chip);
419		if (err < 0)
420			return err;
421	}
422	strcpy(card->driver, chip->pcm->name);
423	strcpy(card->shortname, chip->pcm->name);
424	sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i",
425		chip->pcm->name,
426		chip->port,
427		irq[dev],
428		dma1[dev]);
429	if (dma2[dev] >= 0)
430		sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
431
432	err = snd_wss_timer(chip, 0);
433	if (err < 0)
434		return err;
435
436	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
437		if (snd_opl3_create(card,
438				    fm_port[dev], fm_port[dev] + 2,
439				    OPL3_HW_OPL3_CS, 0, &opl3) < 0) {
440			printk(KERN_WARNING IDENT ": OPL3 not detected\n");
441		} else {
442			if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
443				return err;
444		}
445	}
446
447	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
448		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
449			mpu_irq[dev] = -1;
450		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
451					mpu_port[dev], 0,
452					mpu_irq[dev], NULL) < 0)
453			printk(KERN_WARNING IDENT ": MPU401 not detected\n");
454	}
455
456	return snd_card_register(card);
457}
458
459static int snd_cs423x_isa_match(struct device *pdev,
460				unsigned int dev)
461{
462	if (!enable[dev] || is_isapnp_selected(dev))
463		return 0;
464
465	if (port[dev] == SNDRV_AUTO_PORT) {
466		dev_err(pdev, "please specify port\n");
467		return 0;
468	}
469	if (cport[dev] == SNDRV_AUTO_PORT) {
470		dev_err(pdev, "please specify cport\n");
471		return 0;
472	}
473	if (irq[dev] == SNDRV_AUTO_IRQ) {
474		dev_err(pdev, "please specify irq\n");
475		return 0;
476	}
477	if (dma1[dev] == SNDRV_AUTO_DMA) {
478		dev_err(pdev, "please specify dma1\n");
479		return 0;
480	}
481	return 1;
482}
483
484static int snd_cs423x_isa_probe(struct device *pdev,
485				unsigned int dev)
486{
487	struct snd_card *card;
488	int err;
489
490	err = snd_cs423x_card_new(pdev, dev, &card);
491	if (err < 0)
492		return err;
493	if ((err = snd_cs423x_probe(card, dev)) < 0) {
494		snd_card_free(card);
495		return err;
496	}
497
498	dev_set_drvdata(pdev, card);
499	return 0;
500}
501
502static int snd_cs423x_isa_remove(struct device *pdev,
503				 unsigned int dev)
504{
505	snd_card_free(dev_get_drvdata(pdev));
506	return 0;
507}
508
509#ifdef CONFIG_PM
510static int snd_cs423x_suspend(struct snd_card *card)
511{
512	struct snd_card_cs4236 *acard = card->private_data;
513	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
514	acard->chip->suspend(acard->chip);
515	return 0;
516}
517
518static int snd_cs423x_resume(struct snd_card *card)
519{
520	struct snd_card_cs4236 *acard = card->private_data;
521	acard->chip->resume(acard->chip);
522	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
523	return 0;
524}
525
526static int snd_cs423x_isa_suspend(struct device *dev, unsigned int n,
527				  pm_message_t state)
528{
529	return snd_cs423x_suspend(dev_get_drvdata(dev));
530}
531
532static int snd_cs423x_isa_resume(struct device *dev, unsigned int n)
533{
534	return snd_cs423x_resume(dev_get_drvdata(dev));
535}
536#endif
537
538static struct isa_driver cs423x_isa_driver = {
539	.match		= snd_cs423x_isa_match,
540	.probe		= snd_cs423x_isa_probe,
541	.remove		= snd_cs423x_isa_remove,
542#ifdef CONFIG_PM
543	.suspend	= snd_cs423x_isa_suspend,
544	.resume		= snd_cs423x_isa_resume,
545#endif
546	.driver		= {
547		.name	= DEV_NAME
548	},
549};
550
551
552#ifdef CONFIG_PNP
553static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
554				     const struct pnp_device_id *id)
555{
556	static int dev;
557	int err;
558	struct snd_card *card;
559	struct pnp_dev *cdev;
560	char cid[PNP_ID_LEN];
561
562	if (pnp_device_is_isapnp(pdev))
563		return -ENOENT;	/* we have another procedure - card */
564	for (; dev < SNDRV_CARDS; dev++) {
565		if (enable[dev] && isapnp[dev])
566			break;
567	}
568	if (dev >= SNDRV_CARDS)
569		return -ENODEV;
570
571	/* prepare second id */
572	strcpy(cid, pdev->id[0].id);
573	cid[5] = '1';
574	cdev = NULL;
575	list_for_each_entry(cdev, &(pdev->protocol->devices), protocol_list) {
576		if (!strcmp(cdev->id[0].id, cid))
577			break;
578	}
579	err = snd_cs423x_card_new(&pdev->dev, dev, &card);
580	if (err < 0)
581		return err;
582	err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
583	if (err < 0) {
584		printk(KERN_ERR "PnP BIOS detection failed for " IDENT "\n");
585		snd_card_free(card);
586		return err;
587	}
588	if ((err = snd_cs423x_probe(card, dev)) < 0) {
589		snd_card_free(card);
590		return err;
591	}
592	pnp_set_drvdata(pdev, card);
593	dev++;
594	return 0;
595}
596
597static void snd_cs423x_pnp_remove(struct pnp_dev *pdev)
598{
599	snd_card_free(pnp_get_drvdata(pdev));
600}
601
602#ifdef CONFIG_PM
603static int snd_cs423x_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
604{
605	return snd_cs423x_suspend(pnp_get_drvdata(pdev));
606}
607
608static int snd_cs423x_pnp_resume(struct pnp_dev *pdev)
609{
610	return snd_cs423x_resume(pnp_get_drvdata(pdev));
611}
612#endif
613
614static struct pnp_driver cs423x_pnp_driver = {
615	.name = "cs423x-pnpbios",
616	.id_table = snd_cs423x_pnpbiosids,
617	.probe = snd_cs423x_pnpbios_detect,
618	.remove = snd_cs423x_pnp_remove,
619#ifdef CONFIG_PM
620	.suspend	= snd_cs423x_pnp_suspend,
621	.resume		= snd_cs423x_pnp_resume,
622#endif
623};
624
625static int snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
626				  const struct pnp_card_device_id *pid)
627{
628	static int dev;
629	struct snd_card *card;
630	int res;
631
632	for ( ; dev < SNDRV_CARDS; dev++) {
633		if (enable[dev] && isapnp[dev])
634			break;
635	}
636	if (dev >= SNDRV_CARDS)
637		return -ENODEV;
638
639	res = snd_cs423x_card_new(&pcard->card->dev, dev, &card);
640	if (res < 0)
641		return res;
642	if ((res = snd_card_cs423x_pnpc(dev, card->private_data, pcard, pid)) < 0) {
643		printk(KERN_ERR "isapnp detection failed and probing for " IDENT
644		       " is not supported\n");
645		snd_card_free(card);
646		return res;
647	}
648	if ((res = snd_cs423x_probe(card, dev)) < 0) {
649		snd_card_free(card);
650		return res;
651	}
652	pnp_set_card_drvdata(pcard, card);
653	dev++;
654	return 0;
655}
656
657static void snd_cs423x_pnpc_remove(struct pnp_card_link *pcard)
658{
659	snd_card_free(pnp_get_card_drvdata(pcard));
660	pnp_set_card_drvdata(pcard, NULL);
661}
662
663#ifdef CONFIG_PM
664static int snd_cs423x_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
665{
666	return snd_cs423x_suspend(pnp_get_card_drvdata(pcard));
667}
668
669static int snd_cs423x_pnpc_resume(struct pnp_card_link *pcard)
670{
671	return snd_cs423x_resume(pnp_get_card_drvdata(pcard));
672}
673#endif
674
675static struct pnp_card_driver cs423x_pnpc_driver = {
676	.flags = PNP_DRIVER_RES_DISABLE,
677	.name = CS423X_ISAPNP_DRIVER,
678	.id_table = snd_cs423x_pnpids,
679	.probe = snd_cs423x_pnpc_detect,
680	.remove = snd_cs423x_pnpc_remove,
681#ifdef CONFIG_PM
682	.suspend	= snd_cs423x_pnpc_suspend,
683	.resume		= snd_cs423x_pnpc_resume,
684#endif
685};
686#endif /* CONFIG_PNP */
687
688static int __init alsa_card_cs423x_init(void)
689{
690	int err;
691
692	err = isa_register_driver(&cs423x_isa_driver, SNDRV_CARDS);
693#ifdef CONFIG_PNP
694	if (!err)
695		isa_registered = 1;
696	err = pnp_register_driver(&cs423x_pnp_driver);
697	if (!err)
698		pnp_registered = 1;
699	err = pnp_register_card_driver(&cs423x_pnpc_driver);
700	if (!err)
701		pnpc_registered = 1;
702	if (pnp_registered)
703		err = 0;
704	if (isa_registered)
705		err = 0;
706#endif
707	return err;
708}
709
710static void __exit alsa_card_cs423x_exit(void)
711{
712#ifdef CONFIG_PNP
713	if (pnpc_registered)
714		pnp_unregister_card_driver(&cs423x_pnpc_driver);
715	if (pnp_registered)
716		pnp_unregister_driver(&cs423x_pnp_driver);
717	if (isa_registered)
718#endif
719		isa_unregister_driver(&cs423x_isa_driver);
720}
721
722module_init(alsa_card_cs423x_init)
723module_exit(alsa_card_cs423x_exit)
724