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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Driver for Gravis UltraSound Classic soundcard
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <sound/driver.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <linux/init.h>
Takashi Iwai654aa662005-11-17 17:13:43 +010024#include <linux/err.h>
25#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/delay.h>
27#include <linux/time.h>
28#include <linux/moduleparam.h>
Takashi Iwai654aa662005-11-17 17:13:43 +010029#include <asm/dma.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <sound/core.h>
31#include <sound/gus.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#define SNDRV_LEGACY_FIND_FREE_IRQ
33#define SNDRV_LEGACY_FIND_FREE_DMA
34#include <sound/initval.h>
35
36MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
37MODULE_DESCRIPTION("Gravis UltraSound Classic");
38MODULE_LICENSE("GPL");
39MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
40
41static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
42static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
43static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
44static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */
45static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */
46static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
47static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
48static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
49 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
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 Classic soundcard.");
55module_param_array(id, charp, NULL, 0444);
56MODULE_PARM_DESC(id, "ID string for GUS Classic soundcard.");
57module_param_array(enable, bool, NULL, 0444);
58MODULE_PARM_DESC(enable, "Enable GUS Classic soundcard.");
59module_param_array(port, long, NULL, 0444);
60MODULE_PARM_DESC(port, "Port # for GUS Classic driver.");
61module_param_array(irq, int, NULL, 0444);
62MODULE_PARM_DESC(irq, "IRQ # for GUS Classic driver.");
63module_param_array(dma1, int, NULL, 0444);
64MODULE_PARM_DESC(dma1, "DMA1 # for GUS Classic driver.");
65module_param_array(dma2, int, NULL, 0444);
66MODULE_PARM_DESC(dma2, "DMA2 # for GUS Classic 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 Classic driver.");
69module_param_array(channels, int, NULL, 0444);
70MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver.");
71module_param_array(pcm_channels, int, NULL, 0444);
72MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver.");
73
Clemens Ladischf7a92752005-12-07 09:13:42 +010074static struct platform_device *devices[SNDRV_CARDS];
75
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
Takashi Iwai43bcd972005-09-05 17:19:20 +020077#define PFX "gusclassic: "
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
Takashi Iwai5e2da202005-11-17 14:36:44 +010079static int __init snd_gusclassic_detect(struct snd_gus_card * gus)
Linus Torvalds1da177e2005-04-16 15:20:36 -070080{
Takashi Iwai43bcd972005-09-05 17:19:20 +020081 unsigned char d;
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
Takashi Iwai43bcd972005-09-05 17:19:20 +020083 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
84 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
85 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 return -ENODEV;
Takashi Iwai43bcd972005-09-05 17:19:20 +020087 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 udelay(160);
89 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
90 udelay(160);
Takashi Iwai43bcd972005-09-05 17:19:20 +020091 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
92 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 return -ENODEV;
Takashi Iwai43bcd972005-09-05 17:19:20 +020094 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 return 0;
96}
97
Takashi Iwai5e2da202005-11-17 14:36:44 +010098static void __init snd_gusclassic_init(int dev, struct snd_gus_card * gus)
Linus Torvalds1da177e2005-04-16 15:20:36 -070099{
100 gus->equal_irq = 0;
101 gus->codec_flag = 0;
102 gus->max_flag = 0;
103 gus->joystick_dac = joystick_dac[dev];
104}
105
Takashi Iwai654aa662005-11-17 17:13:43 +0100106static int __init snd_gusclassic_probe(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107{
Takashi Iwai654aa662005-11-17 17:13:43 +0100108 int dev = pdev->id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
110 static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
111 int xirq, xdma1, xdma2;
Takashi Iwai5e2da202005-11-17 14:36:44 +0100112 struct snd_card *card;
Takashi Iwai5e2da202005-11-17 14:36:44 +0100113 struct snd_gus_card *gus = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 int err;
115
116 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
117 if (card == NULL)
118 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 if (pcm_channels[dev] < 2)
120 pcm_channels[dev] = 2;
121
122 xirq = irq[dev];
123 if (xirq == SNDRV_AUTO_IRQ) {
124 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200125 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
126 err = -EBUSY;
127 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 }
129 }
130 xdma1 = dma1[dev];
131 if (xdma1 == SNDRV_AUTO_DMA) {
132 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200133 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
134 err = -EBUSY;
135 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136 }
137 }
138 xdma2 = dma2[dev];
139 if (xdma2 == SNDRV_AUTO_DMA) {
140 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200141 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
142 err = -EBUSY;
143 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 }
145 }
146
Takashi Iwai654aa662005-11-17 17:13:43 +0100147 if (port[dev] != SNDRV_AUTO_PORT) {
148 err = snd_gus_create(card,
149 port[dev],
150 xirq, xdma1, xdma2,
151 0, channels[dev], pcm_channels[dev],
152 0, &gus);
153 } else {
154 /* auto-probe legacy ports */
155 static unsigned long possible_ports[] = {
156 0x220, 0x230, 0x240, 0x250, 0x260,
157 };
158 int i;
159 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
160 err = snd_gus_create(card,
161 possible_ports[i],
162 xirq, xdma1, xdma2,
163 0, channels[dev], pcm_channels[dev],
164 0, &gus);
165 if (err >= 0) {
166 port[dev] = possible_ports[i];
167 break;
168 }
169 }
170 }
171 if (err < 0)
Takashi Iwai43bcd972005-09-05 17:19:20 +0200172 goto _err;
173
174 if ((err = snd_gusclassic_detect(gus)) < 0)
175 goto _err;
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 snd_gusclassic_init(dev, gus);
Takashi Iwai43bcd972005-09-05 17:19:20 +0200178 if ((err = snd_gus_initialize(gus)) < 0)
179 goto _err;
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 if (gus->max_flag || gus->ess_flag) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200182 snd_printk(KERN_ERR PFX "GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port);
183 err = -ENODEV;
184 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 }
Takashi Iwai43bcd972005-09-05 17:19:20 +0200186
187 if ((err = snd_gf1_new_mixer(gus)) < 0)
188 goto _err;
189
190 if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0)
191 goto _err;
192
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 if (!gus->ace_flag) {
Takashi Iwai43bcd972005-09-05 17:19:20 +0200194 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0)
195 goto _err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 }
197 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1);
Alexey Dobriyan1d797162006-01-25 14:30:44 +0100198 if (xdma2 >= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 sprintf(card->longname + strlen(card->longname), "&%d", xdma2);
Takashi Iwai43bcd972005-09-05 17:19:20 +0200200
Takashi Iwai654aa662005-11-17 17:13:43 +0100201 snd_card_set_dev(card, &pdev->dev);
Takashi Iwai43bcd972005-09-05 17:19:20 +0200202
203 if ((err = snd_card_register(card)) < 0)
204 goto _err;
205
Takashi Iwai654aa662005-11-17 17:13:43 +0100206 platform_set_drvdata(pdev, card);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 return 0;
Takashi Iwai43bcd972005-09-05 17:19:20 +0200208
209 _err:
210 snd_card_free(card);
211 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212}
213
Takashi Iwai654aa662005-11-17 17:13:43 +0100214static int snd_gusclassic_remove(struct platform_device *devptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215{
Takashi Iwai654aa662005-11-17 17:13:43 +0100216 snd_card_free(platform_get_drvdata(devptr));
217 platform_set_drvdata(devptr, NULL);
218 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219}
220
Takashi Iwai654aa662005-11-17 17:13:43 +0100221#define GUSCLASSIC_DRIVER "snd_gusclassic"
222
223static struct platform_driver snd_gusclassic_driver = {
224 .probe = snd_gusclassic_probe,
225 .remove = snd_gusclassic_remove,
226 /* FIXME: suspend/resume */
227 .driver = {
228 .name = GUSCLASSIC_DRIVER
229 },
230};
231
Clemens Ladischf7a92752005-12-07 09:13:42 +0100232static void __init_or_module snd_gusclassic_unregister_all(void)
233{
234 int i;
235
236 for (i = 0; i < ARRAY_SIZE(devices); ++i)
237 platform_device_unregister(devices[i]);
238 platform_driver_unregister(&snd_gusclassic_driver);
239}
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241static int __init alsa_card_gusclassic_init(void)
242{
Takashi Iwai654aa662005-11-17 17:13:43 +0100243 int i, cards, err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
Takashi Iwai654aa662005-11-17 17:13:43 +0100245 err = platform_driver_register(&snd_gusclassic_driver);
246 if (err < 0)
247 return err;
248
249 cards = 0;
Takashi Iwai8278ca82006-02-20 11:57:34 +0100250 for (i = 0; i < SNDRV_CARDS; i++) {
Takashi Iwai654aa662005-11-17 17:13:43 +0100251 struct platform_device *device;
Takashi Iwai8278ca82006-02-20 11:57:34 +0100252 if (! enable[i])
253 continue;
Takashi Iwai654aa662005-11-17 17:13:43 +0100254 device = platform_device_register_simple(GUSCLASSIC_DRIVER,
255 i, NULL, 0);
Rene Hermand0ac6422006-04-11 14:08:33 +0200256 if (IS_ERR(device))
257 continue;
Rene Hermandcccdd92006-04-11 14:09:37 +0200258 if (!platform_get_drvdata(device)) {
259 platform_device_unregister(device);
260 continue;
261 }
Clemens Ladischf7a92752005-12-07 09:13:42 +0100262 devices[i] = device;
Takashi Iwai654aa662005-11-17 17:13:43 +0100263 cards++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 if (!cards) {
266#ifdef MODULE
267 printk(KERN_ERR "GUS Classic soundcard not found or device busy\n");
268#endif
Rene Hermand0ac6422006-04-11 14:08:33 +0200269 snd_gusclassic_unregister_all();
270 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 }
272 return 0;
273}
274
275static void __exit alsa_card_gusclassic_exit(void)
276{
Clemens Ladischf7a92752005-12-07 09:13:42 +0100277 snd_gusclassic_unregister_all();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278}
279
280module_init(alsa_card_gusclassic_init)
281module_exit(alsa_card_gusclassic_exit)