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7#include <linux/init.h>
8#include <linux/err.h>
9#include <linux/isa.h>
10#include <linux/delay.h>
11#include <linux/time.h>
12#include <linux/module.h>
13#include <asm/dma.h>
14#include <sound/core.h>
15#include <sound/gus.h>
16#include <sound/wss.h>
17#define SNDRV_LEGACY_FIND_FREE_IRQ
18#define SNDRV_LEGACY_FIND_FREE_DMA
19#include <sound/initval.h>
20
21MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
22MODULE_DESCRIPTION("Gravis UltraSound MAX");
23MODULE_LICENSE("GPL");
24MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
25
26static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
27static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
28static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
29static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
30static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
31static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
32static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
33static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
34
35static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
36static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
37
38module_param_array(index, int, NULL, 0444);
39MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
40module_param_array(id, charp, NULL, 0444);
41MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
42module_param_array(enable, bool, NULL, 0444);
43MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
44module_param_hw_array(port, long, ioport, NULL, 0444);
45MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
46module_param_hw_array(irq, int, irq, NULL, 0444);
47MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
48module_param_hw_array(dma1, int, dma, NULL, 0444);
49MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
50module_param_hw_array(dma2, int, dma, NULL, 0444);
51MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
52module_param_array(joystick_dac, int, NULL, 0444);
53MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
54module_param_array(channels, int, NULL, 0444);
55MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
56module_param_array(pcm_channels, int, NULL, 0444);
57MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
58
59struct snd_gusmax {
60 int irq;
61 struct snd_card *card;
62 struct snd_gus_card *gus;
63 struct snd_wss *wss;
64 unsigned short gus_status_reg;
65 unsigned short pcm_status_reg;
66};
67
68#define PFX "gusmax: "
69
70static int snd_gusmax_detect(struct snd_gus_card *gus)
71{
72 unsigned char d;
73
74 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);
75 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
76 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
77 return -ENODEV;
78 }
79 udelay(160);
80 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);
81 udelay(160);
82 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
83 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
84 return -ENODEV;
85 }
86
87 return 0;
88}
89
90static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
91{
92 struct snd_gusmax *maxcard = dev_id;
93 int loop, max = 5;
94 int handled = 0;
95
96 do {
97 loop = 0;
98 if (inb(maxcard->gus_status_reg)) {
99 handled = 1;
100 snd_gus_interrupt(irq, maxcard->gus);
101 loop++;
102 }
103 if (inb(maxcard->pcm_status_reg) & 0x01) {
104 handled = 1;
105 snd_wss_interrupt(irq, maxcard->wss);
106 loop++;
107 }
108 } while (loop && --max > 0);
109 return IRQ_RETVAL(handled);
110}
111
112static void snd_gusmax_init(int dev, struct snd_card *card,
113 struct snd_gus_card *gus)
114{
115 gus->equal_irq = 1;
116 gus->codec_flag = 1;
117 gus->joystick_dac = joystick_dac[dev];
118
119 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
120 if (gus->gf1.dma1 > 3)
121 gus->max_cntrl_val |= 0x10;
122 if (gus->gf1.dma2 > 3)
123 gus->max_cntrl_val |= 0x20;
124 gus->max_cntrl_val |= 0x40;
125 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
126}
127
128static int snd_gusmax_mixer(struct snd_wss *chip)
129{
130 struct snd_card *card = chip->card;
131 struct snd_ctl_elem_id id1, id2;
132 int err;
133
134 memset(&id1, 0, sizeof(id1));
135 memset(&id2, 0, sizeof(id2));
136 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
137
138 strcpy(id1.name, "Aux Playback Switch");
139 strcpy(id2.name, "Synth Playback Switch");
140 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
141 return err;
142 strcpy(id1.name, "Aux Playback Volume");
143 strcpy(id2.name, "Synth Playback Volume");
144 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
145 return err;
146
147 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
148 strcpy(id2.name, "CD Playback Switch");
149 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
150 return err;
151 strcpy(id1.name, "Aux Playback Volume");
152 strcpy(id2.name, "CD Playback Volume");
153 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
154 return err;
155#if 0
156
157 if (snd_mixer_group_rename(mixer,
158 SNDRV_MIXER_IN_MONO, 0,
159 SNDRV_MIXER_IN_MIC, 0) < 0)
160 goto __error;
161 if (snd_mixer_elem_rename(mixer,
162 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
163 SNDRV_MIXER_IN_MIC, 0) < 0)
164 goto __error;
165 if (snd_mixer_elem_rename(mixer,
166 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
167 "Mic Capture Volume", 0) < 0)
168 goto __error;
169 if (snd_mixer_elem_rename(mixer,
170 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
171 "Mic Capture Switch", 0) < 0)
172 goto __error;
173#endif
174 return 0;
175}
176
177static void snd_gusmax_free(struct snd_card *card)
178{
179 struct snd_gusmax *maxcard = card->private_data;
180
181 if (maxcard == NULL)
182 return;
183 if (maxcard->irq >= 0)
184 free_irq(maxcard->irq, (void *)maxcard);
185}
186
187static int snd_gusmax_match(struct device *pdev, unsigned int dev)
188{
189 return enable[dev];
190}
191
192static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
193{
194 static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
195 static const int possible_dmas[] = {5, 6, 7, 1, 3, -1};
196 int xirq, xdma1, xdma2, err;
197 struct snd_card *card;
198 struct snd_gus_card *gus = NULL;
199 struct snd_wss *wss;
200 struct snd_gusmax *maxcard;
201
202 err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
203 sizeof(struct snd_gusmax), &card);
204 if (err < 0)
205 return err;
206 card->private_free = snd_gusmax_free;
207 maxcard = card->private_data;
208 maxcard->card = card;
209 maxcard->irq = -1;
210
211 xirq = irq[dev];
212 if (xirq == SNDRV_AUTO_IRQ) {
213 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
214 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
215 err = -EBUSY;
216 goto _err;
217 }
218 }
219 xdma1 = dma1[dev];
220 if (xdma1 == SNDRV_AUTO_DMA) {
221 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
222 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
223 err = -EBUSY;
224 goto _err;
225 }
226 }
227 xdma2 = dma2[dev];
228 if (xdma2 == SNDRV_AUTO_DMA) {
229 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
230 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
231 err = -EBUSY;
232 goto _err;
233 }
234 }
235
236 if (port[dev] != SNDRV_AUTO_PORT) {
237 err = snd_gus_create(card,
238 port[dev],
239 -xirq, xdma1, xdma2,
240 0, channels[dev],
241 pcm_channels[dev],
242 0, &gus);
243 } else {
244 static const unsigned long possible_ports[] = {
245 0x220, 0x230, 0x240, 0x250, 0x260
246 };
247 int i;
248 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
249 err = snd_gus_create(card,
250 possible_ports[i],
251 -xirq, xdma1, xdma2,
252 0, channels[dev],
253 pcm_channels[dev],
254 0, &gus);
255 if (err >= 0) {
256 port[dev] = possible_ports[i];
257 break;
258 }
259 }
260 }
261 if (err < 0)
262 goto _err;
263
264 if ((err = snd_gusmax_detect(gus)) < 0)
265 goto _err;
266
267 maxcard->gus_status_reg = gus->gf1.reg_irqstat;
268 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
269 snd_gusmax_init(dev, card, gus);
270 if ((err = snd_gus_initialize(gus)) < 0)
271 goto _err;
272
273 if (!gus->max_flag) {
274 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
275 err = -ENODEV;
276 goto _err;
277 }
278
279 if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
280 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
281 err = -EBUSY;
282 goto _err;
283 }
284 maxcard->irq = xirq;
285 card->sync_irq = maxcard->irq;
286
287 err = snd_wss_create(card,
288 gus->gf1.port + 0x10c, -1, xirq,
289 xdma2 < 0 ? xdma1 : xdma2, xdma1,
290 WSS_HW_DETECT,
291 WSS_HWSHARE_IRQ |
292 WSS_HWSHARE_DMA1 |
293 WSS_HWSHARE_DMA2,
294 &wss);
295 if (err < 0)
296 goto _err;
297
298 err = snd_wss_pcm(wss, 0);
299 if (err < 0)
300 goto _err;
301
302 err = snd_wss_mixer(wss);
303 if (err < 0)
304 goto _err;
305
306 err = snd_wss_timer(wss, 2);
307 if (err < 0)
308 goto _err;
309
310 if (pcm_channels[dev] > 0) {
311 if ((err = snd_gf1_pcm_new(gus, 1, 1)) < 0)
312 goto _err;
313 }
314 err = snd_gusmax_mixer(wss);
315 if (err < 0)
316 goto _err;
317
318 err = snd_gf1_rawmidi_new(gus, 0);
319 if (err < 0)
320 goto _err;
321
322 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
323 if (xdma2 >= 0)
324 sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
325
326 err = snd_card_register(card);
327 if (err < 0)
328 goto _err;
329
330 maxcard->gus = gus;
331 maxcard->wss = wss;
332
333 dev_set_drvdata(pdev, card);
334 return 0;
335
336 _err:
337 snd_card_free(card);
338 return err;
339}
340
341static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
342{
343 snd_card_free(dev_get_drvdata(devptr));
344 return 0;
345}
346
347#define DEV_NAME "gusmax"
348
349static struct isa_driver snd_gusmax_driver = {
350 .match = snd_gusmax_match,
351 .probe = snd_gusmax_probe,
352 .remove = snd_gusmax_remove,
353
354 .driver = {
355 .name = DEV_NAME
356 },
357};
358
359module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);
360
