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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
36MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
37MODULE_DESCRIPTION("Gravis UltraSound MAX");
38MODULE_LICENSE("GPL");
39MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
40
41static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
42static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
43static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
44static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
45static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
46static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
47static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
48static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
49
50static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
51static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
52
53module_param_array(index, int, NULL, 0444);
54MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
55module_param_array(id, charp, NULL, 0444);
56MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
57module_param_array(enable, bool, NULL, 0444);
58MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
59module_param_array(port, long, NULL, 0444);
60MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
61module_param_array(irq, int, NULL, 0444);
62MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
63module_param_array(dma1, int, NULL, 0444);
64MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
65module_param_array(dma2, int, NULL, 0444);
66MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
67module_param_array(joystick_dac, int, NULL, 0444);
68MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
69module_param_array(channels, int, NULL, 0444);
70MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
71module_param_array(pcm_channels, int, NULL, 0444);
72MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
73
74struct 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
85static 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);
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);
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
105static 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) {
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
127static 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
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
143static 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
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
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
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
192static 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
202static int snd_gusmax_match(struct device *pdev, unsigned int dev)
203{
204 return enable[dev];
205}
206
207static 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_create(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 snd_card_set_dev(card, pdev);
341
342 err = snd_card_register(card);
343 if (err < 0)
344 goto _err;
345
346 maxcard->gus = gus;
347 maxcard->wss = wss;
348
349 dev_set_drvdata(pdev, card);
350 return 0;
351
352 _err:
353 snd_card_free(card);
354 return err;
355}
356
357static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
358{
359 snd_card_free(dev_get_drvdata(devptr));
360 return 0;
361}
362
363#define DEV_NAME "gusmax"
364
365static struct isa_driver snd_gusmax_driver = {
366 .match = snd_gusmax_match,
367 .probe = snd_gusmax_probe,
368 .remove = snd_gusmax_remove,
369
370 .driver = {
371 .name = DEV_NAME
372 },
373};
374
375static int __init alsa_card_gusmax_init(void)
376{
377 return isa_register_driver(&snd_gusmax_driver, SNDRV_CARDS);
378}
379
380static void __exit alsa_card_gusmax_exit(void)
381{
382 isa_unregister_driver(&snd_gusmax_driver);
383}
384
385module_init(alsa_card_gusmax_init)
386module_exit(alsa_card_gusmax_exit)
387
