xref: /openbmc/linux/sound/isa/cs423x/cs4236.c (revision bdaedca7)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Driver for generic CS4232/CS4235/CS4236/CS4236B/CS4237B/CS4238B/CS4239 chips
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/pnp.h>
11 #include <linux/module.h>
12 #include <sound/core.h>
13 #include <sound/wss.h>
14 #include <sound/mpu401.h>
15 #include <sound/opl3.h>
16 #include <sound/initval.h>
17 
18 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
19 MODULE_LICENSE("GPL");
20 MODULE_DESCRIPTION("Cirrus Logic CS4232-9");
21 MODULE_ALIAS("snd_cs4232");
22 
23 #define IDENT "CS4232+"
24 #define DEV_NAME "cs4232+"
25 
26 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
27 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
28 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
29 #ifdef CONFIG_PNP
30 static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
31 #endif
32 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
33 static long cport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
34 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;/* PnP setup */
35 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
36 static long sb_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
37 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
38 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
39 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
40 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
41 
42 module_param_array(index, int, NULL, 0444);
43 MODULE_PARM_DESC(index, "Index value for " IDENT " soundcard.");
44 module_param_array(id, charp, NULL, 0444);
45 MODULE_PARM_DESC(id, "ID string for " IDENT " soundcard.");
46 module_param_array(enable, bool, NULL, 0444);
47 MODULE_PARM_DESC(enable, "Enable " IDENT " soundcard.");
48 #ifdef CONFIG_PNP
49 module_param_array(isapnp, bool, NULL, 0444);
50 MODULE_PARM_DESC(isapnp, "ISA PnP detection for specified soundcard.");
51 #endif
52 module_param_hw_array(port, long, ioport, NULL, 0444);
53 MODULE_PARM_DESC(port, "Port # for " IDENT " driver.");
54 module_param_hw_array(cport, long, ioport, NULL, 0444);
55 MODULE_PARM_DESC(cport, "Control port # for " IDENT " driver.");
56 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
57 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " IDENT " driver.");
58 module_param_hw_array(fm_port, long, ioport, NULL, 0444);
59 MODULE_PARM_DESC(fm_port, "FM port # for " IDENT " driver.");
60 module_param_hw_array(sb_port, long, ioport, NULL, 0444);
61 MODULE_PARM_DESC(sb_port, "SB port # for " IDENT " driver (optional).");
62 module_param_hw_array(irq, int, irq, NULL, 0444);
63 MODULE_PARM_DESC(irq, "IRQ # for " IDENT " driver.");
64 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
65 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " IDENT " driver.");
66 module_param_hw_array(dma1, int, dma, NULL, 0444);
67 MODULE_PARM_DESC(dma1, "DMA1 # for " IDENT " driver.");
68 module_param_hw_array(dma2, int, dma, NULL, 0444);
69 MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
70 
71 #ifdef CONFIG_PNP
72 static int isa_registered;
73 static int pnpc_registered;
74 static int pnp_registered;
75 #endif /* CONFIG_PNP */
76 
77 struct snd_card_cs4236 {
78 	struct snd_wss *chip;
79 	struct resource *res_sb_port;
80 #ifdef CONFIG_PNP
81 	struct pnp_dev *wss;
82 	struct pnp_dev *ctrl;
83 	struct pnp_dev *mpu;
84 #endif
85 };
86 
87 #ifdef CONFIG_PNP
88 
89 /*
90  * PNP BIOS
91  */
92 static const struct pnp_device_id snd_cs423x_pnpbiosids[] = {
93 	{ .id = "CSC0100" },
94 	{ .id = "CSC0000" },
95 	/* Guillemot Turtlebeach something appears to be cs4232 compatible
96 	 * (untested) */
97 	{ .id = "GIM0100" },
98 	{ .id = "" }
99 };
100 MODULE_DEVICE_TABLE(pnp, snd_cs423x_pnpbiosids);
101 
102 #define CS423X_ISAPNP_DRIVER	"cs4232_isapnp"
103 static const struct pnp_card_device_id snd_cs423x_pnpids[] = {
104 	/* Philips PCA70PS */
105 	{ .id = "CSC0d32", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
106 	/* TerraTec Maestro 32/96 (CS4232) */
107 	{ .id = "CSC1a32", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
108 	/* HP Omnibook 5500 onboard */
109 	{ .id = "CSC4232", .devs = { { "CSC0000" }, { "CSC0002" }, { "CSC0003" } } },
110 	/* Unnamed CS4236 card (Made in Taiwan) */
111 	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
112 	/* Turtle Beach TBS-2000 (CS4232) */
113 	{ .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSCb006" } } },
114 	/* Turtle Beach Tropez Plus (CS4232) */
115 	{ .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PNPb006" } } },
116 	/* SIC CrystalWave 32 (CS4232) */
117 	{ .id = "CSCf032", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
118 	/* Netfinity 3000 on-board soundcard */
119 	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC010f" } } },
120 	/* Intel Marlin Spike Motherboard - CS4235 */
121 	{ .id = "CSC0225", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
122 	/* Intel Marlin Spike Motherboard (#2) - CS4235 */
123 	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
124 	/* Unknown Intel mainboard - CS4235 */
125 	{ .id = "CSC0225", .devs = { { "CSC0100" }, { "CSC0110" } } },
126 	/* Genius Sound Maker 3DJ - CS4237B */
127 	{ .id = "CSC0437", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
128 	/* Digital PC 5000 Onboard - CS4236B */
129 	{ .id = "CSC0735", .devs = { { "CSC0000" }, { "CSC0010" } } },
130 	/* some unknown CS4236B */
131 	{ .id = "CSC0b35", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
132 	/* Intel PR440FX Onboard sound */
133 	{ .id = "CSC0b36", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
134 	/* CS4235 on mainboard without MPU */
135 	{ .id = "CSC1425", .devs = { { "CSC0100" }, { "CSC0110" } } },
136 	/* Gateway E1000 Onboard CS4236B */
137 	{ .id = "CSC1335", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
138 	/* HP 6330 Onboard sound */
139 	{ .id = "CSC1525", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
140 	/* Crystal Computer TidalWave128 */
141 	{ .id = "CSC1e37", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
142 	/* ACER AW37 - CS4235 */
143 	{ .id = "CSC4236", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
144 	/* build-in soundcard in EliteGroup P5TX-LA motherboard - CS4237B */
145 	{ .id = "CSC4237", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
146 	/* Crystal 3D - CS4237B */
147 	{ .id = "CSC4336", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
148 	/* Typhoon Soundsystem PnP - CS4236B */
149 	{ .id = "CSC4536", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
150 	/* Crystal CX4235-XQ3 EP - CS4235 */
151 	{ .id = "CSC4625", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
152 	/* Crystal Semiconductors CS4237B */
153 	{ .id = "CSC4637", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
154 	/* NewClear 3D - CX4237B-XQ3 */
155 	{ .id = "CSC4837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
156 	/* Dell Optiplex GX1 - CS4236B */
157 	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
158 	/* Dell P410 motherboard - CS4236B */
159 	{ .id = "CSC6835", .devs = { { "CSC0000" }, { "CSC0010" } } },
160 	/* Dell Workstation 400 Onboard - CS4236B */
161 	{ .id = "CSC6836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
162 	/* Turtle Beach Malibu - CS4237B */
163 	{ .id = "CSC7537", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
164 	/* CS4235 - onboard */
165 	{ .id = "CSC8025", .devs = { { "CSC0100" }, { "CSC0110" }, { "CSC0103" } } },
166 	/* IBM Aptiva 2137 E24 Onboard - CS4237B */
167 	{ .id = "CSC8037", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
168 	/* IBM IntelliStation M Pro motherboard */
169 	{ .id = "CSCc835", .devs = { { "CSC0000" }, { "CSC0010" } } },
170 	/* Guillemot MaxiSound 16 PnP - CS4236B */
171 	{ .id = "CSC9836", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
172 	/* Gallant SC-70P */
173 	{ .id = "CSC9837", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
174 	/* Techmakers MF-4236PW */
175 	{ .id = "CSCa736", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
176 	/* TerraTec AudioSystem EWS64XL - CS4236B */
177 	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" }, { "CSCa803" } } },
178 	/* TerraTec AudioSystem EWS64XL - CS4236B */
179 	{ .id = "CSCa836", .devs = { { "CSCa800" }, { "CSCa810" } } },
180 	/* ACER AW37/Pro - CS4235 */
181 	{ .id = "CSCd925", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
182 	/* ACER AW35/Pro - CS4237B */
183 	{ .id = "CSCd937", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
184 	/* CS4235 without MPU401 */
185 	{ .id = "CSCe825", .devs = { { "CSC0100" }, { "CSC0110" } } },
186 	/* Unknown SiS530 - CS4235 */
187 	{ .id = "CSC4825", .devs = { { "CSC0100" }, { "CSC0110" } } },
188 	/* IBM IntelliStation M Pro 6898 11U - CS4236B */
189 	{ .id = "CSCe835", .devs = { { "CSC0000" }, { "CSC0010" } } },
190 	/* IBM PC 300PL Onboard - CS4236B */
191 	{ .id = "CSCe836", .devs = { { "CSC0000" }, { "CSC0010" } } },
192 	/* Some noname CS4236 based card */
193 	{ .id = "CSCe936", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
194 	/* CS4236B */
195 	{ .id = "CSCf235", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
196 	/* CS4236B */
197 	{ .id = "CSCf238", .devs = { { "CSC0000" }, { "CSC0010" }, { "CSC0003" } } },
198 	/* --- */
199 	{ .id = "" }	/* end */
200 };
201 
202 MODULE_DEVICE_TABLE(pnp_card, snd_cs423x_pnpids);
203 
204 /* WSS initialization */
205 static int snd_cs423x_pnp_init_wss(int dev, struct pnp_dev *pdev)
206 {
207 	if (pnp_activate_dev(pdev) < 0) {
208 		printk(KERN_ERR IDENT " WSS PnP configure failed for WSS (out of resources?)\n");
209 		return -EBUSY;
210 	}
211 	port[dev] = pnp_port_start(pdev, 0);
212 	if (fm_port[dev] > 0)
213 		fm_port[dev] = pnp_port_start(pdev, 1);
214 	sb_port[dev] = pnp_port_start(pdev, 2);
215 	irq[dev] = pnp_irq(pdev, 0);
216 	dma1[dev] = pnp_dma(pdev, 0);
217 	dma2[dev] = pnp_dma(pdev, 1) == 4 ? -1 : (int)pnp_dma(pdev, 1);
218 	snd_printdd("isapnp WSS: wss port=0x%lx, fm port=0x%lx, sb port=0x%lx\n",
219 			port[dev], fm_port[dev], sb_port[dev]);
220 	snd_printdd("isapnp WSS: irq=%i, dma1=%i, dma2=%i\n",
221 			irq[dev], dma1[dev], dma2[dev]);
222 	return 0;
223 }
224 
225 /* CTRL initialization */
226 static int snd_cs423x_pnp_init_ctrl(int dev, struct pnp_dev *pdev)
227 {
228 	if (pnp_activate_dev(pdev) < 0) {
229 		printk(KERN_ERR IDENT " CTRL PnP configure failed for WSS (out of resources?)\n");
230 		return -EBUSY;
231 	}
232 	cport[dev] = pnp_port_start(pdev, 0);
233 	snd_printdd("isapnp CTRL: control port=0x%lx\n", cport[dev]);
234 	return 0;
235 }
236 
237 /* MPU initialization */
238 static int snd_cs423x_pnp_init_mpu(int dev, struct pnp_dev *pdev)
239 {
240 	if (pnp_activate_dev(pdev) < 0) {
241 		printk(KERN_ERR IDENT " MPU401 PnP configure failed for WSS (out of resources?)\n");
242 		mpu_port[dev] = SNDRV_AUTO_PORT;
243 		mpu_irq[dev] = SNDRV_AUTO_IRQ;
244 	} else {
245 		mpu_port[dev] = pnp_port_start(pdev, 0);
246 		if (mpu_irq[dev] >= 0 &&
247 		    pnp_irq_valid(pdev, 0) &&
248 		    pnp_irq(pdev, 0) != (resource_size_t)-1) {
249 			mpu_irq[dev] = pnp_irq(pdev, 0);
250 		} else {
251 			mpu_irq[dev] = -1;	/* disable interrupt */
252 		}
253 	}
254 	snd_printdd("isapnp MPU: port=0x%lx, irq=%i\n", mpu_port[dev], mpu_irq[dev]);
255 	return 0;
256 }
257 
258 static int snd_card_cs423x_pnp(int dev, struct snd_card_cs4236 *acard,
259 			       struct pnp_dev *pdev,
260 			       struct pnp_dev *cdev)
261 {
262 	acard->wss = pdev;
263 	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
264 		return -EBUSY;
265 	if (cdev)
266 		cport[dev] = pnp_port_start(cdev, 0);
267 	else
268 		cport[dev] = -1;
269 	return 0;
270 }
271 
272 static int snd_card_cs423x_pnpc(int dev, struct snd_card_cs4236 *acard,
273 				struct pnp_card_link *card,
274 				const struct pnp_card_device_id *id)
275 {
276 	acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL);
277 	if (acard->wss == NULL)
278 		return -EBUSY;
279 	acard->ctrl = pnp_request_card_device(card, id->devs[1].id, NULL);
280 	if (acard->ctrl == NULL)
281 		return -EBUSY;
282 	if (id->devs[2].id[0]) {
283 		acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL);
284 		if (acard->mpu == NULL)
285 			return -EBUSY;
286 	}
287 
288 	/* WSS initialization */
289 	if (snd_cs423x_pnp_init_wss(dev, acard->wss) < 0)
290 		return -EBUSY;
291 
292 	/* CTRL initialization */
293 	if (acard->ctrl && cport[dev] > 0) {
294 		if (snd_cs423x_pnp_init_ctrl(dev, acard->ctrl) < 0)
295 			return -EBUSY;
296 	}
297 	/* MPU initialization */
298 	if (acard->mpu && mpu_port[dev] > 0) {
299 		if (snd_cs423x_pnp_init_mpu(dev, acard->mpu) < 0)
300 			return -EBUSY;
301 	}
302 	return 0;
303 }
304 #endif /* CONFIG_PNP */
305 
306 #ifdef CONFIG_PNP
307 #define is_isapnp_selected(dev)		isapnp[dev]
308 #else
309 #define is_isapnp_selected(dev)		0
310 #endif
311 
312 static void snd_card_cs4236_free(struct snd_card *card)
313 {
314 	struct snd_card_cs4236 *acard = card->private_data;
315 
316 	release_and_free_resource(acard->res_sb_port);
317 }
318 
319 static int snd_cs423x_card_new(struct device *pdev, int dev,
320 			       struct snd_card **cardp)
321 {
322 	struct snd_card *card;
323 	int err;
324 
325 	err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
326 			   sizeof(struct snd_card_cs4236), &card);
327 	if (err < 0)
328 		return err;
329 	card->private_free = snd_card_cs4236_free;
330 	*cardp = card;
331 	return 0;
332 }
333 
334 static int snd_cs423x_probe(struct snd_card *card, int dev)
335 {
336 	struct snd_card_cs4236 *acard;
337 	struct snd_wss *chip;
338 	struct snd_opl3 *opl3;
339 	int err;
340 
341 	acard = card->private_data;
342 	if (sb_port[dev] > 0 && sb_port[dev] != SNDRV_AUTO_PORT)
343 		if ((acard->res_sb_port = request_region(sb_port[dev], 16, IDENT " SB")) == NULL) {
344 			printk(KERN_ERR IDENT ": unable to register SB port at 0x%lx\n", sb_port[dev]);
345 			return -EBUSY;
346 		}
347 
348 	err = snd_cs4236_create(card, port[dev], cport[dev],
349 			     irq[dev],
350 			     dma1[dev], dma2[dev],
351 			     WSS_HW_DETECT3, 0, &chip);
352 	if (err < 0)
353 		return err;
354 
355 	acard->chip = chip;
356 	if (chip->hardware & WSS_HW_CS4236B_MASK) {
357 
358 		err = snd_cs4236_pcm(chip, 0);
359 		if (err < 0)
360 			return err;
361 
362 		err = snd_cs4236_mixer(chip);
363 		if (err < 0)
364 			return err;
365 	} else {
366 		err = snd_wss_pcm(chip, 0);
367 		if (err < 0)
368 			return err;
369 
370 		err = snd_wss_mixer(chip);
371 		if (err < 0)
372 			return err;
373 	}
374 	strscpy(card->driver, chip->pcm->name, sizeof(card->driver));
375 	strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
376 	if (dma2[dev] < 0)
377 		snprintf(card->longname, sizeof(card->longname),
378 			 "%s at 0x%lx, irq %i, dma %i",
379 			 chip->pcm->name, chip->port, irq[dev], dma1[dev]);
380 	else
381 		snprintf(card->longname, sizeof(card->longname),
382 			 "%s at 0x%lx, irq %i, dma %i&%d",
383 			 chip->pcm->name, chip->port, irq[dev], dma1[dev],
384 			 dma2[dev]);
385 
386 	err = snd_wss_timer(chip, 0);
387 	if (err < 0)
388 		return err;
389 
390 	if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
391 		if (snd_opl3_create(card,
392 				    fm_port[dev], fm_port[dev] + 2,
393 				    OPL3_HW_OPL3_CS, 0, &opl3) < 0) {
394 			printk(KERN_WARNING IDENT ": OPL3 not detected\n");
395 		} else {
396 			if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
397 				return err;
398 		}
399 	}
400 
401 	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
402 		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
403 			mpu_irq[dev] = -1;
404 		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
405 					mpu_port[dev], 0,
406 					mpu_irq[dev], NULL) < 0)
407 			printk(KERN_WARNING IDENT ": MPU401 not detected\n");
408 	}
409 
410 	return snd_card_register(card);
411 }
412 
413 static int snd_cs423x_isa_match(struct device *pdev,
414 				unsigned int dev)
415 {
416 	if (!enable[dev] || is_isapnp_selected(dev))
417 		return 0;
418 
419 	if (port[dev] == SNDRV_AUTO_PORT) {
420 		dev_err(pdev, "please specify port\n");
421 		return 0;
422 	}
423 	if (cport[dev] == SNDRV_AUTO_PORT) {
424 		dev_err(pdev, "please specify cport\n");
425 		return 0;
426 	}
427 	if (irq[dev] == SNDRV_AUTO_IRQ) {
428 		dev_err(pdev, "please specify irq\n");
429 		return 0;
430 	}
431 	if (dma1[dev] == SNDRV_AUTO_DMA) {
432 		dev_err(pdev, "please specify dma1\n");
433 		return 0;
434 	}
435 	return 1;
436 }
437 
438 static int snd_cs423x_isa_probe(struct device *pdev,
439 				unsigned int dev)
440 {
441 	struct snd_card *card;
442 	int err;
443 
444 	err = snd_cs423x_card_new(pdev, dev, &card);
445 	if (err < 0)
446 		return err;
447 	if ((err = snd_cs423x_probe(card, dev)) < 0) {
448 		snd_card_free(card);
449 		return err;
450 	}
451 
452 	dev_set_drvdata(pdev, card);
453 	return 0;
454 }
455 
456 static void snd_cs423x_isa_remove(struct device *pdev,
457 				 unsigned int dev)
458 {
459 	snd_card_free(dev_get_drvdata(pdev));
460 }
461 
462 #ifdef CONFIG_PM
463 static int snd_cs423x_suspend(struct snd_card *card)
464 {
465 	struct snd_card_cs4236 *acard = card->private_data;
466 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
467 	acard->chip->suspend(acard->chip);
468 	return 0;
469 }
470 
471 static int snd_cs423x_resume(struct snd_card *card)
472 {
473 	struct snd_card_cs4236 *acard = card->private_data;
474 	acard->chip->resume(acard->chip);
475 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
476 	return 0;
477 }
478 
479 static int snd_cs423x_isa_suspend(struct device *dev, unsigned int n,
480 				  pm_message_t state)
481 {
482 	return snd_cs423x_suspend(dev_get_drvdata(dev));
483 }
484 
485 static int snd_cs423x_isa_resume(struct device *dev, unsigned int n)
486 {
487 	return snd_cs423x_resume(dev_get_drvdata(dev));
488 }
489 #endif
490 
491 static struct isa_driver cs423x_isa_driver = {
492 	.match		= snd_cs423x_isa_match,
493 	.probe		= snd_cs423x_isa_probe,
494 	.remove		= snd_cs423x_isa_remove,
495 #ifdef CONFIG_PM
496 	.suspend	= snd_cs423x_isa_suspend,
497 	.resume		= snd_cs423x_isa_resume,
498 #endif
499 	.driver		= {
500 		.name	= DEV_NAME
501 	},
502 };
503 
504 
505 #ifdef CONFIG_PNP
506 static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
507 				     const struct pnp_device_id *id)
508 {
509 	static int dev;
510 	int err;
511 	struct snd_card *card;
512 	struct pnp_dev *cdev;
513 	char cid[PNP_ID_LEN];
514 
515 	if (pnp_device_is_isapnp(pdev))
516 		return -ENOENT;	/* we have another procedure - card */
517 	for (; dev < SNDRV_CARDS; dev++) {
518 		if (enable[dev] && isapnp[dev])
519 			break;
520 	}
521 	if (dev >= SNDRV_CARDS)
522 		return -ENODEV;
523 
524 	/* prepare second id */
525 	strcpy(cid, pdev->id[0].id);
526 	cid[5] = '1';
527 	cdev = NULL;
528 	list_for_each_entry(cdev, &(pdev->protocol->devices), protocol_list) {
529 		if (!strcmp(cdev->id[0].id, cid))
530 			break;
531 	}
532 	err = snd_cs423x_card_new(&pdev->dev, dev, &card);
533 	if (err < 0)
534 		return err;
535 	err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
536 	if (err < 0) {
537 		printk(KERN_ERR "PnP BIOS detection failed for " IDENT "\n");
538 		snd_card_free(card);
539 		return err;
540 	}
541 	if ((err = snd_cs423x_probe(card, dev)) < 0) {
542 		snd_card_free(card);
543 		return err;
544 	}
545 	pnp_set_drvdata(pdev, card);
546 	dev++;
547 	return 0;
548 }
549 
550 static void snd_cs423x_pnp_remove(struct pnp_dev *pdev)
551 {
552 	snd_card_free(pnp_get_drvdata(pdev));
553 }
554 
555 #ifdef CONFIG_PM
556 static int snd_cs423x_pnp_suspend(struct pnp_dev *pdev, pm_message_t state)
557 {
558 	return snd_cs423x_suspend(pnp_get_drvdata(pdev));
559 }
560 
561 static int snd_cs423x_pnp_resume(struct pnp_dev *pdev)
562 {
563 	return snd_cs423x_resume(pnp_get_drvdata(pdev));
564 }
565 #endif
566 
567 static struct pnp_driver cs423x_pnp_driver = {
568 	.name = "cs423x-pnpbios",
569 	.id_table = snd_cs423x_pnpbiosids,
570 	.probe = snd_cs423x_pnpbios_detect,
571 	.remove = snd_cs423x_pnp_remove,
572 #ifdef CONFIG_PM
573 	.suspend	= snd_cs423x_pnp_suspend,
574 	.resume		= snd_cs423x_pnp_resume,
575 #endif
576 };
577 
578 static int snd_cs423x_pnpc_detect(struct pnp_card_link *pcard,
579 				  const struct pnp_card_device_id *pid)
580 {
581 	static int dev;
582 	struct snd_card *card;
583 	int res;
584 
585 	for ( ; dev < SNDRV_CARDS; dev++) {
586 		if (enable[dev] && isapnp[dev])
587 			break;
588 	}
589 	if (dev >= SNDRV_CARDS)
590 		return -ENODEV;
591 
592 	res = snd_cs423x_card_new(&pcard->card->dev, dev, &card);
593 	if (res < 0)
594 		return res;
595 	if ((res = snd_card_cs423x_pnpc(dev, card->private_data, pcard, pid)) < 0) {
596 		printk(KERN_ERR "isapnp detection failed and probing for " IDENT
597 		       " is not supported\n");
598 		snd_card_free(card);
599 		return res;
600 	}
601 	if ((res = snd_cs423x_probe(card, dev)) < 0) {
602 		snd_card_free(card);
603 		return res;
604 	}
605 	pnp_set_card_drvdata(pcard, card);
606 	dev++;
607 	return 0;
608 }
609 
610 static void snd_cs423x_pnpc_remove(struct pnp_card_link *pcard)
611 {
612 	snd_card_free(pnp_get_card_drvdata(pcard));
613 	pnp_set_card_drvdata(pcard, NULL);
614 }
615 
616 #ifdef CONFIG_PM
617 static int snd_cs423x_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state)
618 {
619 	return snd_cs423x_suspend(pnp_get_card_drvdata(pcard));
620 }
621 
622 static int snd_cs423x_pnpc_resume(struct pnp_card_link *pcard)
623 {
624 	return snd_cs423x_resume(pnp_get_card_drvdata(pcard));
625 }
626 #endif
627 
628 static struct pnp_card_driver cs423x_pnpc_driver = {
629 	.flags = PNP_DRIVER_RES_DISABLE,
630 	.name = CS423X_ISAPNP_DRIVER,
631 	.id_table = snd_cs423x_pnpids,
632 	.probe = snd_cs423x_pnpc_detect,
633 	.remove = snd_cs423x_pnpc_remove,
634 #ifdef CONFIG_PM
635 	.suspend	= snd_cs423x_pnpc_suspend,
636 	.resume		= snd_cs423x_pnpc_resume,
637 #endif
638 };
639 #endif /* CONFIG_PNP */
640 
641 static int __init alsa_card_cs423x_init(void)
642 {
643 	int err;
644 
645 	err = isa_register_driver(&cs423x_isa_driver, SNDRV_CARDS);
646 #ifdef CONFIG_PNP
647 	if (!err)
648 		isa_registered = 1;
649 	err = pnp_register_driver(&cs423x_pnp_driver);
650 	if (!err)
651 		pnp_registered = 1;
652 	err = pnp_register_card_driver(&cs423x_pnpc_driver);
653 	if (!err)
654 		pnpc_registered = 1;
655 	if (pnp_registered)
656 		err = 0;
657 	if (isa_registered)
658 		err = 0;
659 #endif
660 	return err;
661 }
662 
663 static void __exit alsa_card_cs423x_exit(void)
664 {
665 #ifdef CONFIG_PNP
666 	if (pnpc_registered)
667 		pnp_unregister_card_driver(&cs423x_pnpc_driver);
668 	if (pnp_registered)
669 		pnp_unregister_driver(&cs423x_pnp_driver);
670 	if (isa_registered)
671 #endif
672 		isa_unregister_driver(&cs423x_isa_driver);
673 }
674 
675 module_init(alsa_card_cs423x_init)
676 module_exit(alsa_card_cs423x_exit)
677