xref: /openbmc/linux/sound/pcmcia/vx/vxpocket.c (revision a06c488d)
1 /*
2  * Driver for Digigram VXpocket V2/440 soundcards
3  *
4  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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/module.h>
24 #include <linux/slab.h>
25 #include <sound/core.h>
26 #include "vxpocket.h"
27 #include <pcmcia/ciscode.h>
28 #include <pcmcia/cisreg.h>
29 #include <sound/initval.h>
30 #include <sound/tlv.h>
31 
32 /*
33  */
34 
35 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
36 MODULE_DESCRIPTION("Digigram VXPocket");
37 MODULE_LICENSE("GPL");
38 MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");
39 
40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
42 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable switches */
43 static int ibl[SNDRV_CARDS];
44 
45 module_param_array(index, int, NULL, 0444);
46 MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
47 module_param_array(id, charp, NULL, 0444);
48 MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
49 module_param_array(enable, bool, NULL, 0444);
50 MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
51 module_param_array(ibl, int, NULL, 0444);
52 MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
53 
54 
55 /*
56  */
57 
58 static unsigned int card_alloc;
59 
60 
61 /*
62  */
63 static void vxpocket_release(struct pcmcia_device *link)
64 {
65 	free_irq(link->irq, link->priv);
66 	pcmcia_disable_device(link);
67 }
68 
69 /*
70  * destructor, called from snd_card_free_when_closed()
71  */
72 static int snd_vxpocket_dev_free(struct snd_device *device)
73 {
74 	struct vx_core *chip = device->device_data;
75 
76 	snd_vx_free_firmware(chip);
77 	kfree(chip);
78 	return 0;
79 }
80 
81 
82 /*
83  * Hardware information
84  */
85 
86 /* VX-pocket V2
87  *
88  * 1 DSP, 1 sync UER
89  * 1 programmable clock (NIY)
90  * 1 stereo analog input (line/micro)
91  * 1 stereo analog output
92  * Only output levels can be modified
93  */
94 
95 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
96 
97 static struct snd_vx_hardware vxpocket_hw = {
98 	.name = "VXPocket",
99 	.type = VX_TYPE_VXPOCKET,
100 
101 	/* hardware specs */
102 	.num_codecs = 1,
103 	.num_ins = 1,
104 	.num_outs = 1,
105 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
106 	.output_level_db_scale = db_scale_old_vol,
107 };
108 
109 /* VX-pocket 440
110  *
111  * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
112  * SMPTE (NIY)
113  * 2 stereo analog input (line/micro)
114  * 2 stereo analog output
115  * Only output levels can be modified
116  * UER, but only for the first two inputs and outputs.
117  */
118 
119 static struct snd_vx_hardware vxp440_hw = {
120 	.name = "VXPocket440",
121 	.type = VX_TYPE_VXP440,
122 
123 	/* hardware specs */
124 	.num_codecs = 2,
125 	.num_ins = 2,
126 	.num_outs = 2,
127 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
128 	.output_level_db_scale = db_scale_old_vol,
129 };
130 
131 
132 /*
133  * create vxpocket instance
134  */
135 static int snd_vxpocket_new(struct snd_card *card, int ibl,
136 			    struct pcmcia_device *link,
137 			    struct snd_vxpocket **chip_ret)
138 {
139 	struct vx_core *chip;
140 	struct snd_vxpocket *vxp;
141 	static struct snd_device_ops ops = {
142 		.dev_free =	snd_vxpocket_dev_free,
143 	};
144 	int err;
145 
146 	chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
147 			     sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
148 	if (!chip)
149 		return -ENOMEM;
150 
151 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
152 	if (err < 0) {
153 		kfree(chip);
154 		return err;
155 	}
156 	chip->ibl.size = ibl;
157 
158 	vxp = (struct snd_vxpocket *)chip;
159 
160 	vxp->p_dev = link;
161 	link->priv = chip;
162 
163 	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
164 	link->resource[0]->end = 16;
165 
166 	link->config_flags |= CONF_ENABLE_IRQ;
167 	link->config_index = 1;
168 	link->config_regs = PRESENT_OPTION;
169 
170 	*chip_ret = vxp;
171 	return 0;
172 }
173 
174 
175 /**
176  * snd_vxpocket_assign_resources - initialize the hardware and card instance.
177  * @chip: VX core instance
178  * @port: i/o port for the card
179  * @irq: irq number for the card
180  *
181  * this function assigns the specified port and irq, boot the card,
182  * create pcm and control instances, and initialize the rest hardware.
183  *
184  * returns 0 if successful, or a negative error code.
185  */
186 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
187 {
188 	int err;
189 	struct snd_card *card = chip->card;
190 	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
191 
192 	snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
193 	vxp->port = port;
194 
195 	sprintf(card->shortname, "Digigram %s", card->driver);
196 	sprintf(card->longname, "%s at 0x%x, irq %i",
197 		card->shortname, port, irq);
198 
199 	chip->irq = irq;
200 
201 	if ((err = snd_vx_setup_firmware(chip)) < 0)
202 		return err;
203 
204 	return 0;
205 }
206 
207 
208 /*
209  * configuration callback
210  */
211 
212 static int vxpocket_config(struct pcmcia_device *link)
213 {
214 	struct vx_core *chip = link->priv;
215 	int ret;
216 
217 	snd_printdd(KERN_DEBUG "vxpocket_config called\n");
218 
219 	/* redefine hardware record according to the VERSION1 string */
220 	if (!strcmp(link->prod_id[1], "VX-POCKET")) {
221 		snd_printdd("VX-pocket is detected\n");
222 	} else {
223 		snd_printdd("VX-pocket 440 is detected\n");
224 		/* overwrite the hardware information */
225 		chip->hw = &vxp440_hw;
226 		chip->type = vxp440_hw.type;
227 		strcpy(chip->card->driver, vxp440_hw.name);
228 	}
229 
230 	ret = pcmcia_request_io(link);
231 	if (ret)
232 		goto failed_preirq;
233 
234 	ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
235 				   snd_vx_threaded_irq_handler,
236 				   IRQF_SHARED, link->devname, link->priv);
237 	if (ret)
238 		goto failed_preirq;
239 
240 	ret = pcmcia_enable_device(link);
241 	if (ret)
242 		goto failed;
243 
244 	chip->dev = &link->dev;
245 
246 	if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
247 						link->irq) < 0)
248 		goto failed;
249 
250 	return 0;
251 
252  failed:
253 	free_irq(link->irq, link->priv);
254 failed_preirq:
255 	pcmcia_disable_device(link);
256 	return -ENODEV;
257 }
258 
259 #ifdef CONFIG_PM
260 
261 static int vxp_suspend(struct pcmcia_device *link)
262 {
263 	struct vx_core *chip = link->priv;
264 
265 	snd_printdd(KERN_DEBUG "SUSPEND\n");
266 	if (chip) {
267 		snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
268 		snd_vx_suspend(chip);
269 	}
270 
271 	return 0;
272 }
273 
274 static int vxp_resume(struct pcmcia_device *link)
275 {
276 	struct vx_core *chip = link->priv;
277 
278 	snd_printdd(KERN_DEBUG "RESUME\n");
279 	if (pcmcia_dev_present(link)) {
280 		//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
281 		if (chip) {
282 			snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
283 			snd_vx_resume(chip);
284 		}
285 	}
286 	snd_printdd(KERN_DEBUG "resume done!\n");
287 
288 	return 0;
289 }
290 
291 #endif
292 
293 
294 /*
295  */
296 static int vxpocket_probe(struct pcmcia_device *p_dev)
297 {
298 	struct snd_card *card;
299 	struct snd_vxpocket *vxp;
300 	int i, err;
301 
302 	/* find an empty slot from the card list */
303 	for (i = 0; i < SNDRV_CARDS; i++) {
304 		if (!(card_alloc & (1 << i)))
305 			break;
306 	}
307 	if (i >= SNDRV_CARDS) {
308 		snd_printk(KERN_ERR "vxpocket: too many cards found\n");
309 		return -EINVAL;
310 	}
311 	if (! enable[i])
312 		return -ENODEV; /* disabled explicitly */
313 
314 	/* ok, create a card instance */
315 	err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
316 			   0, &card);
317 	if (err < 0) {
318 		snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
319 		return err;
320 	}
321 
322 	err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
323 	if (err < 0) {
324 		snd_card_free(card);
325 		return err;
326 	}
327 	card->private_data = vxp;
328 
329 	vxp->index = i;
330 	card_alloc |= 1 << i;
331 
332 	vxp->p_dev = p_dev;
333 
334 	return vxpocket_config(p_dev);
335 }
336 
337 static void vxpocket_detach(struct pcmcia_device *link)
338 {
339 	struct snd_vxpocket *vxp;
340 	struct vx_core *chip;
341 
342 	if (! link)
343 		return;
344 
345 	vxp = link->priv;
346 	chip = (struct vx_core *)vxp;
347 	card_alloc &= ~(1 << vxp->index);
348 
349 	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
350 	snd_card_disconnect(chip->card);
351 	vxpocket_release(link);
352 	snd_card_free_when_closed(chip->card);
353 }
354 
355 /*
356  * Module entry points
357  */
358 
359 static const struct pcmcia_device_id vxp_ids[] = {
360 	PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
361 	PCMCIA_DEVICE_NULL
362 };
363 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
364 
365 static struct pcmcia_driver vxp_cs_driver = {
366 	.owner		= THIS_MODULE,
367 	.name		= "snd-vxpocket",
368 	.probe		= vxpocket_probe,
369 	.remove		= vxpocket_detach,
370 	.id_table	= vxp_ids,
371 #ifdef CONFIG_PM
372 	.suspend	= vxp_suspend,
373 	.resume		= vxp_resume,
374 #endif
375 };
376 module_pcmcia_driver(vxp_cs_driver);
377