xref: /openbmc/linux/sound/pcmcia/vx/vxpocket.c (revision c4ee0af3)
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 	pcmcia_disable_device(link);
66 }
67 
68 /*
69  * destructor, called from snd_card_free_when_closed()
70  */
71 static int snd_vxpocket_dev_free(struct snd_device *device)
72 {
73 	struct vx_core *chip = device->device_data;
74 
75 	snd_vx_free_firmware(chip);
76 	kfree(chip);
77 	return 0;
78 }
79 
80 
81 /*
82  * Hardware information
83  */
84 
85 /* VX-pocket V2
86  *
87  * 1 DSP, 1 sync UER
88  * 1 programmable clock (NIY)
89  * 1 stereo analog input (line/micro)
90  * 1 stereo analog output
91  * Only output levels can be modified
92  */
93 
94 static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
95 
96 static struct snd_vx_hardware vxpocket_hw = {
97 	.name = "VXPocket",
98 	.type = VX_TYPE_VXPOCKET,
99 
100 	/* hardware specs */
101 	.num_codecs = 1,
102 	.num_ins = 1,
103 	.num_outs = 1,
104 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
105 	.output_level_db_scale = db_scale_old_vol,
106 };
107 
108 /* VX-pocket 440
109  *
110  * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
111  * SMPTE (NIY)
112  * 2 stereo analog input (line/micro)
113  * 2 stereo analog output
114  * Only output levels can be modified
115  * UER, but only for the first two inputs and outputs.
116  */
117 
118 static struct snd_vx_hardware vxp440_hw = {
119 	.name = "VXPocket440",
120 	.type = VX_TYPE_VXP440,
121 
122 	/* hardware specs */
123 	.num_codecs = 2,
124 	.num_ins = 2,
125 	.num_outs = 2,
126 	.output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
127 	.output_level_db_scale = db_scale_old_vol,
128 };
129 
130 
131 /*
132  * create vxpocket instance
133  */
134 static int snd_vxpocket_new(struct snd_card *card, int ibl,
135 			    struct pcmcia_device *link,
136 			    struct snd_vxpocket **chip_ret)
137 {
138 	struct vx_core *chip;
139 	struct snd_vxpocket *vxp;
140 	static struct snd_device_ops ops = {
141 		.dev_free =	snd_vxpocket_dev_free,
142 	};
143 	int err;
144 
145 	chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
146 			     sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
147 	if (!chip)
148 		return -ENOMEM;
149 
150 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
151 	if (err < 0) {
152 		kfree(chip);
153 		return err;
154 	}
155 	chip->ibl.size = ibl;
156 
157 	vxp = (struct snd_vxpocket *)chip;
158 
159 	vxp->p_dev = link;
160 	link->priv = chip;
161 
162 	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
163 	link->resource[0]->end = 16;
164 
165 	link->config_flags |= CONF_ENABLE_IRQ;
166 	link->config_index = 1;
167 	link->config_regs = PRESENT_OPTION;
168 
169 	*chip_ret = vxp;
170 	return 0;
171 }
172 
173 
174 /**
175  * snd_vxpocket_assign_resources - initialize the hardware and card instance.
176  * @port: i/o port for the card
177  * @irq: irq number for the card
178  *
179  * this function assigns the specified port and irq, boot the card,
180  * create pcm and control instances, and initialize the rest hardware.
181  *
182  * returns 0 if successful, or a negative error code.
183  */
184 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
185 {
186 	int err;
187 	struct snd_card *card = chip->card;
188 	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
189 
190 	snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
191 	vxp->port = port;
192 
193 	sprintf(card->shortname, "Digigram %s", card->driver);
194 	sprintf(card->longname, "%s at 0x%x, irq %i",
195 		card->shortname, port, irq);
196 
197 	chip->irq = irq;
198 
199 	if ((err = snd_vx_setup_firmware(chip)) < 0)
200 		return err;
201 
202 	return 0;
203 }
204 
205 
206 /*
207  * configuration callback
208  */
209 
210 static int vxpocket_config(struct pcmcia_device *link)
211 {
212 	struct vx_core *chip = link->priv;
213 	int ret;
214 
215 	snd_printdd(KERN_DEBUG "vxpocket_config called\n");
216 
217 	/* redefine hardware record according to the VERSION1 string */
218 	if (!strcmp(link->prod_id[1], "VX-POCKET")) {
219 		snd_printdd("VX-pocket is detected\n");
220 	} else {
221 		snd_printdd("VX-pocket 440 is detected\n");
222 		/* overwrite the hardware information */
223 		chip->hw = &vxp440_hw;
224 		chip->type = vxp440_hw.type;
225 		strcpy(chip->card->driver, vxp440_hw.name);
226 	}
227 
228 	ret = pcmcia_request_io(link);
229 	if (ret)
230 		goto failed;
231 
232 	ret = pcmcia_request_irq(link, snd_vx_irq_handler);
233 	if (ret)
234 		goto failed;
235 
236 	ret = pcmcia_enable_device(link);
237 	if (ret)
238 		goto failed;
239 
240 	chip->dev = &link->dev;
241 	snd_card_set_dev(chip->card, chip->dev);
242 
243 	if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
244 						link->irq) < 0)
245 		goto failed;
246 
247 	return 0;
248 
249 failed:
250 	pcmcia_disable_device(link);
251 	return -ENODEV;
252 }
253 
254 #ifdef CONFIG_PM
255 
256 static int vxp_suspend(struct pcmcia_device *link)
257 {
258 	struct vx_core *chip = link->priv;
259 
260 	snd_printdd(KERN_DEBUG "SUSPEND\n");
261 	if (chip) {
262 		snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
263 		snd_vx_suspend(chip);
264 	}
265 
266 	return 0;
267 }
268 
269 static int vxp_resume(struct pcmcia_device *link)
270 {
271 	struct vx_core *chip = link->priv;
272 
273 	snd_printdd(KERN_DEBUG "RESUME\n");
274 	if (pcmcia_dev_present(link)) {
275 		//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
276 		if (chip) {
277 			snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
278 			snd_vx_resume(chip);
279 		}
280 	}
281 	snd_printdd(KERN_DEBUG "resume done!\n");
282 
283 	return 0;
284 }
285 
286 #endif
287 
288 
289 /*
290  */
291 static int vxpocket_probe(struct pcmcia_device *p_dev)
292 {
293 	struct snd_card *card;
294 	struct snd_vxpocket *vxp;
295 	int i, err;
296 
297 	/* find an empty slot from the card list */
298 	for (i = 0; i < SNDRV_CARDS; i++) {
299 		if (!(card_alloc & (1 << i)))
300 			break;
301 	}
302 	if (i >= SNDRV_CARDS) {
303 		snd_printk(KERN_ERR "vxpocket: too many cards found\n");
304 		return -EINVAL;
305 	}
306 	if (! enable[i])
307 		return -ENODEV; /* disabled explicitly */
308 
309 	/* ok, create a card instance */
310 	err = snd_card_create(index[i], id[i], THIS_MODULE, 0, &card);
311 	if (err < 0) {
312 		snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
313 		return err;
314 	}
315 
316 	err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
317 	if (err < 0) {
318 		snd_card_free(card);
319 		return err;
320 	}
321 	card->private_data = vxp;
322 
323 	vxp->index = i;
324 	card_alloc |= 1 << i;
325 
326 	vxp->p_dev = p_dev;
327 
328 	return vxpocket_config(p_dev);
329 }
330 
331 static void vxpocket_detach(struct pcmcia_device *link)
332 {
333 	struct snd_vxpocket *vxp;
334 	struct vx_core *chip;
335 
336 	if (! link)
337 		return;
338 
339 	vxp = link->priv;
340 	chip = (struct vx_core *)vxp;
341 	card_alloc &= ~(1 << vxp->index);
342 
343 	chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
344 	snd_card_disconnect(chip->card);
345 	vxpocket_release(link);
346 	snd_card_free_when_closed(chip->card);
347 }
348 
349 /*
350  * Module entry points
351  */
352 
353 static const struct pcmcia_device_id vxp_ids[] = {
354 	PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
355 	PCMCIA_DEVICE_NULL
356 };
357 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
358 
359 static struct pcmcia_driver vxp_cs_driver = {
360 	.owner		= THIS_MODULE,
361 	.name		= "snd-vxpocket",
362 	.probe		= vxpocket_probe,
363 	.remove		= vxpocket_detach,
364 	.id_table	= vxp_ids,
365 #ifdef CONFIG_PM
366 	.suspend	= vxp_suspend,
367 	.resume		= vxp_resume,
368 #endif
369 };
370 module_pcmcia_driver(vxp_cs_driver);
371