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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         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 
242         if (snd_vxpocket_assign_resources(chip, link->resource[0]->start,
243                                                 link->irq) < 0)
244                 goto failed;
245 
246         return 0;
247 
248 failed:
249         pcmcia_disable_device(link);
250         return -ENODEV;
251 }
252 
253 #ifdef CONFIG_PM
254 
255 static int vxp_suspend(struct pcmcia_device *link)
256 {
257         struct vx_core *chip = link->priv;
258 
259         snd_printdd(KERN_DEBUG "SUSPEND\n");
260         if (chip) {
261                 snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
262                 snd_vx_suspend(chip);
263         }
264 
265         return 0;
266 }
267 
268 static int vxp_resume(struct pcmcia_device *link)
269 {
270         struct vx_core *chip = link->priv;
271 
272         snd_printdd(KERN_DEBUG "RESUME\n");
273         if (pcmcia_dev_present(link)) {
274                 //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
275                 if (chip) {
276                         snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
277                         snd_vx_resume(chip);
278                 }
279         }
280         snd_printdd(KERN_DEBUG "resume done!\n");
281 
282         return 0;
283 }
284 
285 #endif
286 
287 
288 /*
289  */
290 static int vxpocket_probe(struct pcmcia_device *p_dev)
291 {
292         struct snd_card *card;
293         struct snd_vxpocket *vxp;
294         int i, err;
295 
296         /* find an empty slot from the card list */
297         for (i = 0; i < SNDRV_CARDS; i++) {
298                 if (!(card_alloc & (1 << i)))
299                         break;
300         }
301         if (i >= SNDRV_CARDS) {
302                 snd_printk(KERN_ERR "vxpocket: too many cards found\n");
303                 return -EINVAL;
304         }
305         if (! enable[i])
306                 return -ENODEV; /* disabled explicitly */
307 
308         /* ok, create a card instance */
309         err = snd_card_new(&p_dev->dev, index[i], id[i], THIS_MODULE,
310                            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 

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