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22#include <sound/driver.h>
23#include <linux/init.h>
24#include <linux/err.h>
25#include <linux/isa.h>
26#include <linux/delay.h>
27#include <linux/time.h>
28#include <linux/moduleparam.h>
29#include <asm/dma.h>
30#include <sound/core.h>
31#include <sound/gus.h>
32#include <sound/cs4231.h>
33#define SNDRV_LEGACY_FIND_FREE_IRQ
34#define SNDRV_LEGACY_FIND_FREE_DMA
35#include <sound/initval.h>
36
37MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
38MODULE_DESCRIPTION("Gravis UltraSound MAX");
39MODULE_LICENSE("GPL");
40MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
41
42static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
43static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
44static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
45static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
46static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
47static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
48static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
49static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
50
51static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
52static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
53
54module_param_array(index, int, NULL, 0444);
55MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
56module_param_array(id, charp, NULL, 0444);
57MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
58module_param_array(enable, bool, NULL, 0444);
59MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
60module_param_array(port, long, NULL, 0444);
61MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
62module_param_array(irq, int, NULL, 0444);
63MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
64module_param_array(dma1, int, NULL, 0444);
65MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
66module_param_array(dma2, int, NULL, 0444);
67MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
68module_param_array(joystick_dac, int, NULL, 0444);
69MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
70module_param_array(channels, int, NULL, 0444);
71MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
72module_param_array(pcm_channels, int, NULL, 0444);
73MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
74
75struct snd_gusmax {
76 int irq;
77 struct snd_card *card;
78 struct snd_gus_card *gus;
79 struct snd_cs4231 *cs4231;
80 unsigned short gus_status_reg;
81 unsigned short pcm_status_reg;
82};
83
84#define PFX "gusmax: "
85
86static int __devinit snd_gusmax_detect(struct snd_gus_card * gus)
87{
88 unsigned char d;
89
90 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);
91 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
92 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
93 return -ENODEV;
94 }
95 udelay(160);
96 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);
97 udelay(160);
98 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
99 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
100 return -ENODEV;
101 }
102
103 return 0;
104}
105
106static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
107{
108 struct snd_gusmax *maxcard = dev_id;
109 int loop, max = 5;
110 int handled = 0;
111
112 do {
113 loop = 0;
114 if (inb(maxcard->gus_status_reg)) {
115 handled = 1;
116 snd_gus_interrupt(irq, maxcard->gus);
117 loop++;
118 }
119 if (inb(maxcard->pcm_status_reg) & 0x01) {
120 handled = 1;
121 snd_cs4231_interrupt(irq, maxcard->cs4231);
122 loop++;
123 }
124 } while (loop && --max > 0);
125 return IRQ_RETVAL(handled);
126}
127
128static void __devinit snd_gusmax_init(int dev, struct snd_card *card,
129 struct snd_gus_card * gus)
130{
131 gus->equal_irq = 1;
132 gus->codec_flag = 1;
133 gus->joystick_dac = joystick_dac[dev];
134
135 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
136 if (gus->gf1.dma1 > 3)
137 gus->max_cntrl_val |= 0x10;
138 if (gus->gf1.dma2 > 3)
139 gus->max_cntrl_val |= 0x20;
140 gus->max_cntrl_val |= 0x40;
141 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
142}
143
144#define CS4231_PRIVATE( left, right, shift, mute ) \
145 ((left << 24)|(right << 16)|(shift<<8)|mute)
146
147static int __devinit snd_gusmax_mixer(struct snd_cs4231 *chip)
148{
149 struct snd_card *card = chip->card;
150 struct snd_ctl_elem_id id1, id2;
151 int err;
152
153 memset(&id1, 0, sizeof(id1));
154 memset(&id2, 0, sizeof(id2));
155 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
156
157 strcpy(id1.name, "Aux Playback Switch");
158 strcpy(id2.name, "Synth Playback Switch");
159 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
160 return err;
161 strcpy(id1.name, "Aux Playback Volume");
162 strcpy(id2.name, "Synth Playback Volume");
163 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
164 return err;
165
166 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
167 strcpy(id2.name, "CD Playback Switch");
168 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
169 return err;
170 strcpy(id1.name, "Aux Playback Volume");
171 strcpy(id2.name, "CD Playback Volume");
172 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
173 return err;
174#if 0
175
176 if (snd_mixer_group_rename(mixer,
177 SNDRV_MIXER_IN_MONO, 0,
178 SNDRV_MIXER_IN_MIC, 0) < 0)
179 goto __error;
180 if (snd_mixer_elem_rename(mixer,
181 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
182 SNDRV_MIXER_IN_MIC, 0) < 0)
183 goto __error;
184 if (snd_mixer_elem_rename(mixer,
185 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
186 "Mic Capture Volume", 0) < 0)
187 goto __error;
188 if (snd_mixer_elem_rename(mixer,
189 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
190 "Mic Capture Switch", 0) < 0)
191 goto __error;
192#endif
193 return 0;
194}
195
196static void snd_gusmax_free(struct snd_card *card)
197{
198 struct snd_gusmax *maxcard = (struct snd_gusmax *)card->private_data;
199
200 if (maxcard == NULL)
201 return;
202 if (maxcard->irq >= 0)
203 free_irq(maxcard->irq, (void *)maxcard);
204}
205
206static int __devinit snd_gusmax_match(struct device *pdev, unsigned int dev)
207{
208 return enable[dev];
209}
210
211static int __devinit snd_gusmax_probe(struct device *pdev, unsigned int dev)
212{
213 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
214 static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
215 int xirq, xdma1, xdma2, err;
216 struct snd_card *card;
217 struct snd_gus_card *gus = NULL;
218 struct snd_cs4231 *cs4231;
219 struct snd_gusmax *maxcard;
220
221 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
222 sizeof(struct snd_gusmax));
223 if (card == NULL)
224 return -ENOMEM;
225 card->private_free = snd_gusmax_free;
226 maxcard = (struct snd_gusmax *)card->private_data;
227 maxcard->card = card;
228 maxcard->irq = -1;
229
230 xirq = irq[dev];
231 if (xirq == SNDRV_AUTO_IRQ) {
232 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
233 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
234 err = -EBUSY;
235 goto _err;
236 }
237 }
238 xdma1 = dma1[dev];
239 if (xdma1 == SNDRV_AUTO_DMA) {
240 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
241 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
242 err = -EBUSY;
243 goto _err;
244 }
245 }
246 xdma2 = dma2[dev];
247 if (xdma2 == SNDRV_AUTO_DMA) {
248 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
249 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
250 err = -EBUSY;
251 goto _err;
252 }
253 }
254
255 if (port[dev] != SNDRV_AUTO_PORT) {
256 err = snd_gus_create(card,
257 port[dev],
258 -xirq, xdma1, xdma2,
259 0, channels[dev],
260 pcm_channels[dev],
261 0, &gus);
262 } else {
263 static unsigned long possible_ports[] = {
264 0x220, 0x230, 0x240, 0x250, 0x260
265 };
266 int i;
267 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
268 err = snd_gus_create(card,
269 possible_ports[i],
270 -xirq, xdma1, xdma2,
271 0, channels[dev],
272 pcm_channels[dev],
273 0, &gus);
274 if (err >= 0) {
275 port[dev] = possible_ports[i];
276 break;
277 }
278 }
279 }
280 if (err < 0)
281 goto _err;
282
283 if ((err = snd_gusmax_detect(gus)) < 0)
284 goto _err;
285
286 maxcard->gus_status_reg = gus->gf1.reg_irqstat;
287 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
288 snd_gusmax_init(dev, card, gus);
289 if ((err = snd_gus_initialize(gus)) < 0)
290 goto _err;
291
292 if (!gus->max_flag) {
293 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
294 err = -ENODEV;
295 goto _err;
296 }
297
298 if (request_irq(xirq, snd_gusmax_interrupt, IRQF_DISABLED, "GUS MAX", (void *)maxcard)) {
299 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
300 err = -EBUSY;
301 goto _err;
302 }
303 maxcard->irq = xirq;
304
305 if ((err = snd_cs4231_create(card,
306 gus->gf1.port + 0x10c, -1, xirq,
307 xdma2 < 0 ? xdma1 : xdma2, xdma1,
308 CS4231_HW_DETECT,
309 CS4231_HWSHARE_IRQ |
310 CS4231_HWSHARE_DMA1 |
311 CS4231_HWSHARE_DMA2,
312 &cs4231)) < 0)
313 goto _err;
314
315 if ((err = snd_cs4231_pcm(cs4231, 0, NULL)) < 0)
316 goto _err;
317
318 if ((err = snd_cs4231_mixer(cs4231)) < 0)
319 goto _err;
320
321 if ((err = snd_cs4231_timer(cs4231, 2, NULL)) < 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 if ((err = snd_gusmax_mixer(cs4231)) < 0)
329 goto _err;
330
331 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0)
332 goto _err;
333
334 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
335 if (xdma2 >= 0)
336 sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
337
338 snd_card_set_dev(card, pdev);
339
340 if ((err = snd_card_register(card)) < 0)
341 goto _err;
342
343 maxcard->gus = gus;
344 maxcard->cs4231 = cs4231;
345
346 dev_set_drvdata(pdev, card);
347 return 0;
348
349 _err:
350 snd_card_free(card);
351 return err;
352}
353
354static int __devexit snd_gusmax_remove(struct device *devptr, unsigned int dev)
355{
356 snd_card_free(dev_get_drvdata(devptr));
357 dev_set_drvdata(devptr, NULL);
358 return 0;
359}
360
361#define DEV_NAME "gusmax"
362
363static struct isa_driver snd_gusmax_driver = {
364 .match = snd_gusmax_match,
365 .probe = snd_gusmax_probe,
366 .remove = __devexit_p(snd_gusmax_remove),
367
368 .driver = {
369 .name = DEV_NAME
370 },
371};
372
373static int __init alsa_card_gusmax_init(void)
374{
375 return isa_register_driver(&snd_gusmax_driver, SNDRV_CARDS);
376}
377
378static void __exit alsa_card_gusmax_exit(void)
379{
380 isa_unregister_driver(&snd_gusmax_driver);
381}
382
383module_init(alsa_card_gusmax_init)
384module_exit(alsa_card_gusmax_exit)
385
