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Linux/sound/pcmcia/vx/vxpocket.c

  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  * @port: i/o port for the card
178  * @irq: irq number for the card
179  *
180  * this function assigns the specified port and irq, boot the card,
181  * create pcm and control instances, and initialize the rest hardware.
182  *
183  * returns 0 if successful, or a negative error code.
184  */
185 static int snd_vxpocket_assign_resources(struct vx_core *chip, int port, int irq)
186 {
187         int err;
188         struct snd_card *card = chip->card;
189         struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
190 
191         snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
192         vxp->port = port;
193 
194         sprintf(card->shortname, "Digigram %s", card->driver);
195         sprintf(card->longname, "%s at 0x%x, irq %i",
196                 card->shortname, port, irq);
197 
198         chip->irq = irq;
199 
200         if ((err = snd_vx_setup_firmware(chip)) < 0)
201                 return err;
202 
203         return 0;
204 }
205 
206 
207 /*
208  * configuration callback
209  */
210 
211 static int vxpocket_config(struct pcmcia_device *link)
212 {
213         struct vx_core *chip = link->priv;
214         int ret;
215 
216         snd_printdd(KERN_DEBUG "vxpocket_config called\n");
217 
218         /* redefine hardware record according to the VERSION1 string */
219         if (!strcmp(link->prod_id[1], "VX-POCKET")) {
220                 snd_printdd("VX-pocket is detected\n");
221         } else {
222                 snd_printdd("VX-pocket 440 is detected\n");
223                 /* overwrite the hardware information */
224                 chip->hw = &vxp440_hw;
225                 chip->type = vxp440_hw.type;
226                 strcpy(chip->card->driver, vxp440_hw.name);
227         }
228 
229         ret = pcmcia_request_io(link);
230         if (ret)
231                 goto failed_preirq;
232 
233         ret = request_threaded_irq(link->irq, snd_vx_irq_handler,
234                                    snd_vx_threaded_irq_handler,
235                                    IRQF_SHARED, link->devname, link->priv);
236         if (ret)
237                 goto failed_preirq;
238 
239         ret = pcmcia_enable_device(link);
240         if (ret)
241                 goto failed;
242 
243         chip->dev = &link->dev;
244 
245         if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
246                                                 link->irq) < 0)
247                 goto failed;
248 
249         return 0;
250 
251  failed:
252         free_irq(link->irq, link->priv);
253 failed_preirq:
254         pcmcia_disable_device(link);
255         return -ENODEV;
256 }
257 
258 #ifdef CONFIG_PM
259 
260 static int vxp_suspend(struct pcmcia_device *link)
261 {
262         struct vx_core *chip = link->priv;
263 
264         snd_printdd(KERN_DEBUG "SUSPEND\n");
265         if (chip) {
266                 snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
267                 snd_vx_suspend(chip);
268         }
269 
270         return 0;
271 }
272 
273 static int vxp_resume(struct pcmcia_device *link)
274 {
275         struct vx_core *chip = link->priv;
276 
277         snd_printdd(KERN_DEBUG "RESUME\n");
278         if (pcmcia_dev_present(link)) {
279                 //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
280                 if (chip) {
281                         snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
282                         snd_vx_resume(chip);
283                 }
284         }
285         snd_printdd(KERN_DEBUG "resume done!\n");
286 
287         return 0;
288 }
289 
290 #endif
291 
292 
293 /*
294  */
295 static int vxpocket_probe(struct pcmcia_device *p_dev)
296 {
297         struct snd_card *card;
298         struct snd_vxpocket *vxp;
299         int i, err;
300 
301         /* find an empty slot from the card list */
302         for (i = 0; i < SNDRV_CARDS; i++) {
303                 if (!(card_alloc & (1 << i)))
304                         break;
305         }
306         if (i >= SNDRV_CARDS) {
307                 snd_printk(KERN_ERR "vxpocket: too many cards found\n");
308                 return -EINVAL;
309         }
310         if (! enable[i])
311                 return -ENODEV; /* disabled explicitly */
312 
313         /* ok, create a card instance */
314         err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
315                            0, &card);
316         if (err < 0) {
317                 snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
318                 return err;
319         }
320 
321         err = snd_vxpocket_new(card, ibl[i], p_dev, &vxp);
322         if (err < 0) {
323                 snd_card_free(card);
324                 return err;
325         }
326         card->private_data = vxp;
327 
328         vxp->index = i;
329         card_alloc |= 1 << i;
330 
331         vxp->p_dev = p_dev;
332 
333         return vxpocket_config(p_dev);
334 }
335 
336 static void vxpocket_detach(struct pcmcia_device *link)
337 {
338         struct snd_vxpocket *vxp;
339         struct vx_core *chip;
340 
341         if (! link)
342                 return;
343 
344         vxp = link->priv;
345         chip = (struct vx_core *)vxp;
346         card_alloc &= ~(1 << vxp->index);
347 
348         chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
349         snd_card_disconnect(chip->card);
350         vxpocket_release(link);
351         snd_card_free_when_closed(chip->card);
352 }
353 
354 /*
355  * Module entry points
356  */
357 
358 static const struct pcmcia_device_id vxp_ids[] = {
359         PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
360         PCMCIA_DEVICE_NULL
361 };
362 MODULE_DEVICE_TABLE(pcmcia, vxp_ids);
363 
364 static struct pcmcia_driver vxp_cs_driver = {
365         .owner          = THIS_MODULE,
366         .name           = "snd-vxpocket",
367         .probe          = vxpocket_probe,
368         .remove         = vxpocket_detach,
369         .id_table       = vxp_ids,
370 #ifdef CONFIG_PM
371         .suspend        = vxp_suspend,
372         .resume         = vxp_resume,
373 #endif
374 };
375 module_pcmcia_driver(vxp_cs_driver);
376 

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