summaryrefslogtreecommitdiff
path: root/sound/isa/gus/gusmax.c
blob: 6834c056006405df82a6c7b588c651cf92eae5b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Driver for Gravis UltraSound MAX soundcard
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
 */

#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/module.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/gus.h>
#include <sound/wss.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Gravis UltraSound MAX");
MODULE_LICENSE("GPL");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x230,0x240,0x250,0x260 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 2,3,5,9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 1,3,5,6,7 */
static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 1,3,5,6,7 */
static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
				/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
module_param_hw_array(dma1, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
module_param_hw_array(dma2, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
module_param_array(joystick_dac, int, NULL, 0444);
MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
module_param_array(channels, int, NULL, 0444);
MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
module_param_array(pcm_channels, int, NULL, 0444);
MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");

struct snd_gusmax {
	int irq;
	struct snd_card *card;
	struct snd_gus_card *gus;
	struct snd_wss *wss;
	unsigned short gus_status_reg;
	unsigned short pcm_status_reg;
};

#define PFX	"gusmax: "

static int snd_gusmax_detect(struct snd_gus_card *gus)
{
	unsigned char d;

	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);	/* reset GF1 */
	d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
	if ((d & 0x07) != 0) {
		snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
		return -ENODEV;
	}
	udelay(160);
	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);	/* release reset */
	udelay(160);
	d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
	if ((d & 0x07) != 1) {
		snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
		return -ENODEV;
	}

	return 0;
}

static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
{
	struct snd_gusmax *maxcard = dev_id;
	int loop, max = 5;
	int handled = 0;

	do {
		loop = 0;
		if (inb(maxcard->gus_status_reg)) {
			handled = 1;
			snd_gus_interrupt(irq, maxcard->gus);
			loop++;
		}
		if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
			handled = 1;
			snd_wss_interrupt(irq, maxcard->wss);
			loop++;
		}
	} while (loop && --max > 0);
	return IRQ_RETVAL(handled);
}

static void snd_gusmax_init(int dev, struct snd_card *card,
			    struct snd_gus_card *gus)
{
	gus->equal_irq = 1;
	gus->codec_flag = 1;
	gus->joystick_dac = joystick_dac[dev];
	/* init control register */
	gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
	if (gus->gf1.dma1 > 3)
		gus->max_cntrl_val |= 0x10;
	if (gus->gf1.dma2 > 3)
		gus->max_cntrl_val |= 0x20;
	gus->max_cntrl_val |= 0x40;
	outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
}

static int snd_gusmax_mixer(struct snd_wss *chip)
{
	struct snd_card *card = chip->card;
	struct snd_ctl_elem_id id1, id2;
	int err;
	
	memset(&id1, 0, sizeof(id1));
	memset(&id2, 0, sizeof(id2));
	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	/* reassign AUXA to SYNTHESIZER */
	strcpy(id1.name, "Aux Playback Switch");
	strcpy(id2.name, "Synth Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "Synth Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	/* reassign AUXB to CD */
	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
	strcpy(id2.name, "CD Playback Switch");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
	strcpy(id1.name, "Aux Playback Volume");
	strcpy(id2.name, "CD Playback Volume");
	err = snd_ctl_rename_id(card, &id1, &id2);
	if (err < 0)
		return err;
#if 0
	/* reassign Mono Input to MIC */
	if (snd_mixer_group_rename(mixer,
				SNDRV_MIXER_IN_MONO, 0,
				SNDRV_MIXER_IN_MIC, 0) < 0)
		goto __error;
	if (snd_mixer_elem_rename(mixer,
				SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
				SNDRV_MIXER_IN_MIC, 0) < 0)
		goto __error;
	if (snd_mixer_elem_rename(mixer,
				"Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
				"Mic Capture Volume", 0) < 0)
		goto __error;
	if (snd_mixer_elem_rename(mixer,
				"Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
				"Mic Capture Switch", 0) < 0)
		goto __error;
#endif
	return 0;
}

static int snd_gusmax_match(struct device *pdev, unsigned int dev)
{
	return enable[dev];
}

static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
{
	static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
	static const int possible_dmas[] = {5, 6, 7, 1, 3, -1};
	int xirq, xdma1, xdma2, err;
	struct snd_card *card;
	struct snd_gus_card *gus = NULL;
	struct snd_wss *wss;
	struct snd_gusmax *maxcard;

	err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
				sizeof(struct snd_gusmax), &card);
	if (err < 0)
		return err;
	maxcard = card->private_data;
	maxcard->card = card;
	maxcard->irq = -1;
	
	xirq = irq[dev];
	if (xirq == SNDRV_AUTO_IRQ) {
		xirq = snd_legacy_find_free_irq(possible_irqs);
		if (xirq < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
			return -EBUSY;
		}
	}
	xdma1 = dma1[dev];
	if (xdma1 == SNDRV_AUTO_DMA) {
		xdma1 = snd_legacy_find_free_dma(possible_dmas);
		if (xdma1 < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
			return -EBUSY;
		}
	}
	xdma2 = dma2[dev];
	if (xdma2 == SNDRV_AUTO_DMA) {
		xdma2 = snd_legacy_find_free_dma(possible_dmas);
		if (xdma2 < 0) {
			snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
			return -EBUSY;
		}
	}

	if (port[dev] != SNDRV_AUTO_PORT) {
		err = snd_gus_create(card,
				     port[dev],
				     -xirq, xdma1, xdma2,
				     0, channels[dev],
				     pcm_channels[dev],
				     0, &gus);
	} else {
		static const unsigned long possible_ports[] = {
			0x220, 0x230, 0x240, 0x250, 0x260
		};
		int i;
		for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
			err = snd_gus_create(card,
					     possible_ports[i],
					     -xirq, xdma1, xdma2,
					     0, channels[dev],
					     pcm_channels[dev],
					     0, &gus);
			if (err >= 0) {
				port[dev] = possible_ports[i];
				break;
			}
		}
	}
	if (err < 0)
		return err;

	err = snd_gusmax_detect(gus);
	if (err < 0)
		return err;

	maxcard->gus_status_reg = gus->gf1.reg_irqstat;
	maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
	snd_gusmax_init(dev, card, gus);
	err = snd_gus_initialize(gus);
	if (err < 0)
		return err;

	if (!gus->max_flag) {
		snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
		return -ENODEV;
	}

	if (devm_request_irq(card->dev, xirq, snd_gusmax_interrupt, 0,
			     "GUS MAX", (void *)maxcard)) {
		snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
		return -EBUSY;
	}
	maxcard->irq = xirq;
	card->sync_irq = maxcard->irq;

	err = snd_wss_create(card,
			     gus->gf1.port + 0x10c, -1, xirq,
			     xdma2 < 0 ? xdma1 : xdma2, xdma1,
			     WSS_HW_DETECT,
			     WSS_HWSHARE_IRQ |
			     WSS_HWSHARE_DMA1 |
			     WSS_HWSHARE_DMA2,
			     &wss);
	if (err < 0)
		return err;

	err = snd_wss_pcm(wss, 0);
	if (err < 0)
		return err;

	err = snd_wss_mixer(wss);
	if (err < 0)
		return err;

	err = snd_wss_timer(wss, 2);
	if (err < 0)
		return err;

	if (pcm_channels[dev] > 0) {
		err = snd_gf1_pcm_new(gus, 1, 1);
		if (err < 0)
			return err;
	}
	err = snd_gusmax_mixer(wss);
	if (err < 0)
		return err;

	err = snd_gf1_rawmidi_new(gus, 0);
	if (err < 0)
		return err;

	sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
	if (xdma2 >= 0)
		sprintf(card->longname + strlen(card->longname), "&%i", xdma2);

	err = snd_card_register(card);
	if (err < 0)
		return err;
		
	maxcard->gus = gus;
	maxcard->wss = wss;

	dev_set_drvdata(pdev, card);
	return 0;
}

#define DEV_NAME "gusmax"

static struct isa_driver snd_gusmax_driver = {
	.match		= snd_gusmax_match,
	.probe		= snd_gusmax_probe,
	/* FIXME: suspend/resume */
	.driver		= {
		.name	= DEV_NAME
	},
};

module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);