1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Driver for Gravis UltraSound Extreme soundcards
4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5  */
6 
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/es1688.h>
17 #include <sound/mpu401.h>
18 #include <sound/opl3.h>
19 #define SNDRV_LEGACY_AUTO_PROBE
20 #define SNDRV_LEGACY_FIND_FREE_IRQ
21 #define SNDRV_LEGACY_FIND_FREE_DMA
22 #include <sound/initval.h>
23 
24 #define CRD_NAME "Gravis UltraSound Extreme"
25 #define DEV_NAME "gusextreme"
26 
27 MODULE_DESCRIPTION(CRD_NAME);
28 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
29 MODULE_LICENSE("GPL");
30 
31 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
32 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
33 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
34 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260 */
35 static long gf1_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS) - 1] = -1}; /* 0x210,0x220,0x230,0x240,0x250,0x260,0x270 */
36 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS) - 1] = -1}; /* 0x300,0x310,0x320 */
37 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
38 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
39 static int gf1_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 2,3,5,9,11,12,15 */
40 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
41 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
42 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
43 				/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
44 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
45 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
46 
47 module_param_array(index, int, NULL, 0444);
48 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
49 module_param_array(id, charp, NULL, 0444);
50 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
51 module_param_array(enable, bool, NULL, 0444);
52 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
53 module_param_hw_array(port, long, ioport, NULL, 0444);
54 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
55 module_param_hw_array(gf1_port, long, ioport, NULL, 0444);
56 MODULE_PARM_DESC(gf1_port, "GF1 port # for " CRD_NAME " driver (optional).");
57 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
58 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
59 module_param_hw_array(irq, int, irq, NULL, 0444);
60 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
61 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
62 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
63 module_param_hw_array(gf1_irq, int, irq, NULL, 0444);
64 MODULE_PARM_DESC(gf1_irq, "GF1 IRQ # for " CRD_NAME " driver.");
65 module_param_hw_array(dma8, int, dma, NULL, 0444);
66 MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
67 module_param_hw_array(dma1, int, dma, NULL, 0444);
68 MODULE_PARM_DESC(dma1, "GF1 DMA # for " CRD_NAME " driver.");
69 module_param_array(joystick_dac, int, NULL, 0444);
70 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
71 module_param_array(channels, int, NULL, 0444);
72 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
73 module_param_array(pcm_channels, int, NULL, 0444);
74 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
75 
snd_gusextreme_match(struct device * dev,unsigned int n)76 static int snd_gusextreme_match(struct device *dev, unsigned int n)
77 {
78 	return enable[n];
79 }
80 
snd_gusextreme_es1688_create(struct snd_card * card,struct snd_es1688 * chip,struct device * dev,unsigned int n)81 static int snd_gusextreme_es1688_create(struct snd_card *card,
82 					struct snd_es1688 *chip,
83 					struct device *dev, unsigned int n)
84 {
85 	static const long possible_ports[] = {0x220, 0x240, 0x260};
86 	static const int possible_irqs[] = {5, 9, 10, 7, -1};
87 	static const int possible_dmas[] = {1, 3, 0, -1};
88 
89 	int i, error;
90 
91 	if (irq[n] == SNDRV_AUTO_IRQ) {
92 		irq[n] = snd_legacy_find_free_irq(possible_irqs);
93 		if (irq[n] < 0) {
94 			dev_err(dev, "unable to find a free IRQ for ES1688\n");
95 			return -EBUSY;
96 		}
97 	}
98 	if (dma8[n] == SNDRV_AUTO_DMA) {
99 		dma8[n] = snd_legacy_find_free_dma(possible_dmas);
100 		if (dma8[n] < 0) {
101 			dev_err(dev, "unable to find a free DMA for ES1688\n");
102 			return -EBUSY;
103 		}
104 	}
105 
106 	if (port[n] != SNDRV_AUTO_PORT)
107 		return snd_es1688_create(card, chip, port[n], mpu_port[n],
108 				irq[n], mpu_irq[n], dma8[n], ES1688_HW_1688);
109 
110 	i = 0;
111 	do {
112 		port[n] = possible_ports[i];
113 		error = snd_es1688_create(card, chip, port[n], mpu_port[n],
114 				irq[n], mpu_irq[n], dma8[n], ES1688_HW_1688);
115 	} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
116 
117 	return error;
118 }
119 
snd_gusextreme_gus_card_create(struct snd_card * card,struct device * dev,unsigned int n,struct snd_gus_card ** rgus)120 static int snd_gusextreme_gus_card_create(struct snd_card *card,
121 					  struct device *dev, unsigned int n,
122 					  struct snd_gus_card **rgus)
123 {
124 	static const int possible_irqs[] = {11, 12, 15, 9, 5, 7, 3, -1};
125 	static const int possible_dmas[] = {5, 6, 7, 3, 1, -1};
126 
127 	if (gf1_irq[n] == SNDRV_AUTO_IRQ) {
128 		gf1_irq[n] = snd_legacy_find_free_irq(possible_irqs);
129 		if (gf1_irq[n] < 0) {
130 			dev_err(dev, "unable to find a free IRQ for GF1\n");
131 			return -EBUSY;
132 		}
133 	}
134 	if (dma1[n] == SNDRV_AUTO_DMA) {
135 		dma1[n] = snd_legacy_find_free_dma(possible_dmas);
136 		if (dma1[n] < 0) {
137 			dev_err(dev, "unable to find a free DMA for GF1\n");
138 			return -EBUSY;
139 		}
140 	}
141 	return snd_gus_create(card, gf1_port[n], gf1_irq[n], dma1[n], -1,
142 			0, channels[n], pcm_channels[n], 0, rgus);
143 }
144 
snd_gusextreme_detect(struct snd_gus_card * gus,struct snd_es1688 * es1688)145 static int snd_gusextreme_detect(struct snd_gus_card *gus,
146 				 struct snd_es1688 *es1688)
147 {
148 	unsigned long flags;
149 	unsigned char d;
150 
151 	/*
152 	 * This is main stuff - enable access to GF1 chip...
153 	 * I'm not sure, if this will work for card which have
154 	 * ES1688 chip in another place than 0x220.
155          *
156          * I used reverse-engineering in DOSEMU. [--jk]
157 	 *
158 	 * ULTRINIT.EXE:
159 	 * 0x230 = 0,2,3
160 	 * 0x240 = 2,0,1
161 	 * 0x250 = 2,0,3
162 	 * 0x260 = 2,2,1
163 	 */
164 
165 	spin_lock_irqsave(&es1688->mixer_lock, flags);
166 	snd_es1688_mixer_write(es1688, 0x40, 0x0b);	/* don't change!!! */
167 	spin_unlock_irqrestore(&es1688->mixer_lock, flags);
168 
169 	spin_lock_irqsave(&es1688->reg_lock, flags);
170 	outb(gus->gf1.port & 0x040 ? 2 : 0, ES1688P(es1688, INIT1));
171 	outb(0, 0x201);
172 	outb(gus->gf1.port & 0x020 ? 2 : 0, ES1688P(es1688, INIT1));
173 	outb(0, 0x201);
174 	outb(gus->gf1.port & 0x010 ? 3 : 1, ES1688P(es1688, INIT1));
175 	spin_unlock_irqrestore(&es1688->reg_lock, flags);
176 
177 	udelay(100);
178 
179 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);	/* reset GF1 */
180 	d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
181 	if ((d & 0x07) != 0) {
182 		snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
183 		return -EIO;
184 	}
185 	udelay(160);
186 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);	/* release reset */
187 	udelay(160);
188 	d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET);
189 	if ((d & 0x07) != 1) {
190 		snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
191 		return -EIO;
192 	}
193 
194 	return 0;
195 }
196 
snd_gusextreme_mixer(struct snd_card * card)197 static int snd_gusextreme_mixer(struct snd_card *card)
198 {
199 	struct snd_ctl_elem_id id1, id2;
200 	int error;
201 
202 	memset(&id1, 0, sizeof(id1));
203 	memset(&id2, 0, sizeof(id2));
204 	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
205 
206 	/* reassign AUX to SYNTHESIZER */
207 	strcpy(id1.name, "Aux Playback Volume");
208 	strcpy(id2.name, "Synth Playback Volume");
209 	error = snd_ctl_rename_id(card, &id1, &id2);
210 	if (error < 0)
211 		return error;
212 
213 	/* reassign Master Playback Switch to Synth Playback Switch */
214 	strcpy(id1.name, "Master Playback Switch");
215 	strcpy(id2.name, "Synth Playback Switch");
216 	error = snd_ctl_rename_id(card, &id1, &id2);
217 	if (error < 0)
218 		return error;
219 
220 	return 0;
221 }
222 
snd_gusextreme_probe(struct device * dev,unsigned int n)223 static int snd_gusextreme_probe(struct device *dev, unsigned int n)
224 {
225 	struct snd_card *card;
226 	struct snd_gus_card *gus;
227 	struct snd_es1688 *es1688;
228 	struct snd_opl3 *opl3;
229 	int error;
230 
231 	error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE,
232 				  sizeof(struct snd_es1688), &card);
233 	if (error < 0)
234 		return error;
235 
236 	es1688 = card->private_data;
237 
238 	if (mpu_port[n] == SNDRV_AUTO_PORT)
239 		mpu_port[n] = 0;
240 
241 	if (mpu_irq[n] > 15)
242 		mpu_irq[n] = -1;
243 
244 	error = snd_gusextreme_es1688_create(card, es1688, dev, n);
245 	if (error < 0)
246 		return error;
247 
248 	if (gf1_port[n] < 0)
249 		gf1_port[n] = es1688->port + 0x20;
250 
251 	error = snd_gusextreme_gus_card_create(card, dev, n, &gus);
252 	if (error < 0)
253 		return error;
254 
255 	error = snd_gusextreme_detect(gus, es1688);
256 	if (error < 0)
257 		return error;
258 
259 	gus->joystick_dac = joystick_dac[n];
260 
261 	error = snd_gus_initialize(gus);
262 	if (error < 0)
263 		return error;
264 
265 	error = -ENODEV;
266 	if (!gus->ess_flag) {
267 		dev_err(dev, "GUS Extreme soundcard was not "
268 			"detected at 0x%lx\n", gus->gf1.port);
269 		return error;
270 	}
271 	gus->codec_flag = 1;
272 
273 	error = snd_es1688_pcm(card, es1688, 0);
274 	if (error < 0)
275 		return error;
276 
277 	error = snd_es1688_mixer(card, es1688);
278 	if (error < 0)
279 		return error;
280 
281 	snd_component_add(card, "ES1688");
282 
283 	if (pcm_channels[n] > 0) {
284 		error = snd_gf1_pcm_new(gus, 1, 1);
285 		if (error < 0)
286 			return error;
287 	}
288 
289 	error = snd_gf1_new_mixer(gus);
290 	if (error < 0)
291 		return error;
292 
293 	error = snd_gusextreme_mixer(card);
294 	if (error < 0)
295 		return error;
296 
297 	if (snd_opl3_create(card, es1688->port, es1688->port + 2,
298 			OPL3_HW_OPL3, 0, &opl3) < 0)
299 		dev_warn(dev, "opl3 not detected at 0x%lx\n", es1688->port);
300 	else {
301 		error = snd_opl3_hwdep_new(opl3, 0, 2, NULL);
302 		if (error < 0)
303 			return error;
304 	}
305 
306 	if (es1688->mpu_port >= 0x300) {
307 		error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
308 				es1688->mpu_port, 0, mpu_irq[n], NULL);
309 		if (error < 0)
310 			return error;
311 	}
312 
313 	sprintf(card->longname, "Gravis UltraSound Extreme at 0x%lx, "
314 		"irq %i&%i, dma %i&%i", es1688->port,
315 		gus->gf1.irq, es1688->irq, gus->gf1.dma1, es1688->dma8);
316 
317 	error = snd_card_register(card);
318 	if (error < 0)
319 		return error;
320 
321 	dev_set_drvdata(dev, card);
322 	return 0;
323 }
324 
325 static struct isa_driver snd_gusextreme_driver = {
326 	.match		= snd_gusextreme_match,
327 	.probe		= snd_gusextreme_probe,
328 #if 0	/* FIXME */
329 	.suspend	= snd_gusextreme_suspend,
330 	.resume		= snd_gusextreme_resume,
331 #endif
332 	.driver		= {
333 		.name	= DEV_NAME
334 	}
335 };
336 
337 module_isa_driver(snd_gusextreme_driver, SNDRV_CARDS);
338