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
27MODULE_DESCRIPTION(CRD_NAME);
28MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
29MODULE_LICENSE("GPL");
30
31static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
32static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
33static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
34static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240,0x260 */
35static long gf1_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS) - 1] = -1}; /* 0x210,0x220,0x230,0x240,0x250,0x260,0x270 */
36static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS) - 1] = -1}; /* 0x300,0x310,0x320 */
37static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
38static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,10 */
39static int gf1_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 2,3,5,9,11,12,15 */
40static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
41static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
42static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
43				/* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
44static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
45static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
46
47module_param_array(index, int, NULL, 0444);
48MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
49module_param_array(id, charp, NULL, 0444);
50MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
51module_param_array(enable, bool, NULL, 0444);
52MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
53module_param_hw_array(port, long, ioport, NULL, 0444);
54MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
55module_param_hw_array(gf1_port, long, ioport, NULL, 0444);
56MODULE_PARM_DESC(gf1_port, "GF1 port # for " CRD_NAME " driver (optional).");
57module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
58MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
59module_param_hw_array(irq, int, irq, NULL, 0444);
60MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
61module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
62MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
63module_param_hw_array(gf1_irq, int, irq, NULL, 0444);
64MODULE_PARM_DESC(gf1_irq, "GF1 IRQ # for " CRD_NAME " driver.");
65module_param_hw_array(dma8, int, dma, NULL, 0444);
66MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
67module_param_hw_array(dma1, int, dma, NULL, 0444);
68MODULE_PARM_DESC(dma1, "GF1 DMA # for " CRD_NAME " driver.");
69module_param_array(joystick_dac, int, NULL, 0444);
70MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
71module_param_array(channels, int, NULL, 0444);
72MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
73module_param_array(pcm_channels, int, NULL, 0444);
74MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
75
76static int snd_gusextreme_match(struct device *dev, unsigned int n)
77{
78	return enable[n];
79}
80
81static 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
120static 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
145static 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
197static 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
223static 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
325static 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
337module_isa_driver(snd_gusextreme_driver, SNDRV_CARDS);
338