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Linux/sound/isa/gus/gusmax.c

  1 /*
  2  *  Driver for Gravis UltraSound MAX soundcard
  3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  4  *
  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/err.h>
 24 #include <linux/isa.h>
 25 #include <linux/delay.h>
 26 #include <linux/time.h>
 27 #include <linux/module.h>
 28 #include <asm/dma.h>
 29 #include <sound/core.h>
 30 #include <sound/gus.h>
 31 #include <sound/wss.h>
 32 #define SNDRV_LEGACY_FIND_FREE_IRQ
 33 #define SNDRV_LEGACY_FIND_FREE_DMA
 34 #include <sound/initval.h>
 35 
 36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 37 MODULE_DESCRIPTION("Gravis UltraSound MAX");
 38 MODULE_LICENSE("GPL");
 39 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
 40 
 41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 43 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 44 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
 45 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 2,3,5,9,11,12,15 */
 46 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
 47 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
 48 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
 49                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
 50 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
 51 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
 52 
 53 module_param_array(index, int, NULL, 0444);
 54 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
 55 module_param_array(id, charp, NULL, 0444);
 56 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
 57 module_param_array(enable, bool, NULL, 0444);
 58 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
 59 module_param_array(port, long, NULL, 0444);
 60 MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
 61 module_param_array(irq, int, NULL, 0444);
 62 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
 63 module_param_array(dma1, int, NULL, 0444);
 64 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
 65 module_param_array(dma2, int, NULL, 0444);
 66 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
 67 module_param_array(joystick_dac, int, NULL, 0444);
 68 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
 69 module_param_array(channels, int, NULL, 0444);
 70 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
 71 module_param_array(pcm_channels, int, NULL, 0444);
 72 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
 73 
 74 struct snd_gusmax {
 75         int irq;
 76         struct snd_card *card;
 77         struct snd_gus_card *gus;
 78         struct snd_wss *wss;
 79         unsigned short gus_status_reg;
 80         unsigned short pcm_status_reg;
 81 };
 82 
 83 #define PFX     "gusmax: "
 84 
 85 static int snd_gusmax_detect(struct snd_gus_card *gus)
 86 {
 87         unsigned char d;
 88 
 89         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
 90         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
 91                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
 92                 return -ENODEV;
 93         }
 94         udelay(160);
 95         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
 96         udelay(160);
 97         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 98                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 99                 return -ENODEV;
100         }
101 
102         return 0;
103 }
104 
105 static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
106 {
107         struct snd_gusmax *maxcard = dev_id;
108         int loop, max = 5;
109         int handled = 0;
110 
111         do {
112                 loop = 0;
113                 if (inb(maxcard->gus_status_reg)) {
114                         handled = 1;
115                         snd_gus_interrupt(irq, maxcard->gus);
116                         loop++;
117                 }
118                 if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
119                         handled = 1;
120                         snd_wss_interrupt(irq, maxcard->wss);
121                         loop++;
122                 }
123         } while (loop && --max > 0);
124         return IRQ_RETVAL(handled);
125 }
126 
127 static void snd_gusmax_init(int dev, struct snd_card *card,
128                             struct snd_gus_card *gus)
129 {
130         gus->equal_irq = 1;
131         gus->codec_flag = 1;
132         gus->joystick_dac = joystick_dac[dev];
133         /* init control register */
134         gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
135         if (gus->gf1.dma1 > 3)
136                 gus->max_cntrl_val |= 0x10;
137         if (gus->gf1.dma2 > 3)
138                 gus->max_cntrl_val |= 0x20;
139         gus->max_cntrl_val |= 0x40;
140         outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
141 }
142 
143 static int snd_gusmax_mixer(struct snd_wss *chip)
144 {
145         struct snd_card *card = chip->card;
146         struct snd_ctl_elem_id id1, id2;
147         int err;
148         
149         memset(&id1, 0, sizeof(id1));
150         memset(&id2, 0, sizeof(id2));
151         id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
152         /* reassign AUXA to SYNTHESIZER */
153         strcpy(id1.name, "Aux Playback Switch");
154         strcpy(id2.name, "Synth Playback Switch");
155         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
156                 return err;
157         strcpy(id1.name, "Aux Playback Volume");
158         strcpy(id2.name, "Synth Playback Volume");
159         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
160                 return err;
161         /* reassign AUXB to CD */
162         strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
163         strcpy(id2.name, "CD Playback Switch");
164         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
165                 return err;
166         strcpy(id1.name, "Aux Playback Volume");
167         strcpy(id2.name, "CD Playback Volume");
168         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
169                 return err;
170 #if 0
171         /* reassign Mono Input to MIC */
172         if (snd_mixer_group_rename(mixer,
173                                 SNDRV_MIXER_IN_MONO, 0,
174                                 SNDRV_MIXER_IN_MIC, 0) < 0)
175                 goto __error;
176         if (snd_mixer_elem_rename(mixer,
177                                 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
178                                 SNDRV_MIXER_IN_MIC, 0) < 0)
179                 goto __error;
180         if (snd_mixer_elem_rename(mixer,
181                                 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
182                                 "Mic Capture Volume", 0) < 0)
183                 goto __error;
184         if (snd_mixer_elem_rename(mixer,
185                                 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
186                                 "Mic Capture Switch", 0) < 0)
187                 goto __error;
188 #endif
189         return 0;
190 }
191 
192 static void snd_gusmax_free(struct snd_card *card)
193 {
194         struct snd_gusmax *maxcard = card->private_data;
195         
196         if (maxcard == NULL)
197                 return;
198         if (maxcard->irq >= 0)
199                 free_irq(maxcard->irq, (void *)maxcard);
200 }
201 
202 static int snd_gusmax_match(struct device *pdev, unsigned int dev)
203 {
204         return enable[dev];
205 }
206 
207 static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
208 {
209         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
210         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
211         int xirq, xdma1, xdma2, err;
212         struct snd_card *card;
213         struct snd_gus_card *gus = NULL;
214         struct snd_wss *wss;
215         struct snd_gusmax *maxcard;
216 
217         err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
218                            sizeof(struct snd_gusmax), &card);
219         if (err < 0)
220                 return err;
221         card->private_free = snd_gusmax_free;
222         maxcard = card->private_data;
223         maxcard->card = card;
224         maxcard->irq = -1;
225         
226         xirq = irq[dev];
227         if (xirq == SNDRV_AUTO_IRQ) {
228                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
229                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
230                         err = -EBUSY;
231                         goto _err;
232                 }
233         }
234         xdma1 = dma1[dev];
235         if (xdma1 == SNDRV_AUTO_DMA) {
236                 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
237                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
238                         err = -EBUSY;
239                         goto _err;
240                 }
241         }
242         xdma2 = dma2[dev];
243         if (xdma2 == SNDRV_AUTO_DMA) {
244                 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
245                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
246                         err = -EBUSY;
247                         goto _err;
248                 }
249         }
250 
251         if (port[dev] != SNDRV_AUTO_PORT) {
252                 err = snd_gus_create(card,
253                                      port[dev],
254                                      -xirq, xdma1, xdma2,
255                                      0, channels[dev],
256                                      pcm_channels[dev],
257                                      0, &gus);
258         } else {
259                 static unsigned long possible_ports[] = {
260                         0x220, 0x230, 0x240, 0x250, 0x260
261                 };
262                 int i;
263                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
264                         err = snd_gus_create(card,
265                                              possible_ports[i],
266                                              -xirq, xdma1, xdma2,
267                                              0, channels[dev],
268                                              pcm_channels[dev],
269                                              0, &gus);
270                         if (err >= 0) {
271                                 port[dev] = possible_ports[i];
272                                 break;
273                         }
274                 }
275         }
276         if (err < 0)
277                 goto _err;
278 
279         if ((err = snd_gusmax_detect(gus)) < 0)
280                 goto _err;
281 
282         maxcard->gus_status_reg = gus->gf1.reg_irqstat;
283         maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
284         snd_gusmax_init(dev, card, gus);
285         if ((err = snd_gus_initialize(gus)) < 0)
286                 goto _err;
287 
288         if (!gus->max_flag) {
289                 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
290                 err = -ENODEV;
291                 goto _err;
292         }
293 
294         if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
295                 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
296                 err = -EBUSY;
297                 goto _err;
298         }
299         maxcard->irq = xirq;
300         
301         err = snd_wss_create(card,
302                              gus->gf1.port + 0x10c, -1, xirq,
303                              xdma2 < 0 ? xdma1 : xdma2, xdma1,
304                              WSS_HW_DETECT,
305                              WSS_HWSHARE_IRQ |
306                              WSS_HWSHARE_DMA1 |
307                              WSS_HWSHARE_DMA2,
308                              &wss);
309         if (err < 0)
310                 goto _err;
311 
312         err = snd_wss_pcm(wss, 0, NULL);
313         if (err < 0)
314                 goto _err;
315 
316         err = snd_wss_mixer(wss);
317         if (err < 0)
318                 goto _err;
319 
320         err = snd_wss_timer(wss, 2, NULL);
321         if (err < 0)
322                 goto _err;
323 
324         if (pcm_channels[dev] > 0) {
325                 if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0)
326                         goto _err;
327         }
328         err = snd_gusmax_mixer(wss);
329         if (err < 0)
330                 goto _err;
331 
332         err = snd_gf1_rawmidi_new(gus, 0, NULL);
333         if (err < 0)
334                 goto _err;
335 
336         sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
337         if (xdma2 >= 0)
338                 sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
339 
340         err = snd_card_register(card);
341         if (err < 0)
342                 goto _err;
343                 
344         maxcard->gus = gus;
345         maxcard->wss = wss;
346 
347         dev_set_drvdata(pdev, card);
348         return 0;
349 
350  _err:
351         snd_card_free(card);
352         return err;
353 }
354 
355 static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
356 {
357         snd_card_free(dev_get_drvdata(devptr));
358         return 0;
359 }
360 
361 #define DEV_NAME "gusmax"
362 
363 static struct isa_driver snd_gusmax_driver = {
364         .match          = snd_gusmax_match,
365         .probe          = snd_gusmax_probe,
366         .remove         = snd_gusmax_remove,
367         /* FIXME: suspend/resume */
368         .driver         = {
369                 .name   = DEV_NAME
370         },
371 };
372 
373 static int __init alsa_card_gusmax_init(void)
374 {
375         return isa_register_driver(&snd_gusmax_driver, SNDRV_CARDS);
376 }
377 
378 static void __exit alsa_card_gusmax_exit(void)
379 {
380         isa_unregister_driver(&snd_gusmax_driver);
381 }
382 
383 module_init(alsa_card_gusmax_init)
384 module_exit(alsa_card_gusmax_exit)
385 

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