1 /*
2 * Driver for Gravis UltraSound Classic soundcard
3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
23 #include <linux/err.h>
24 #include <linux/isa.h>
25 #include <linux/delay.h>
26 #include <linux/time.h>
27 #include <linux/moduleparam.h>
28 #include <asm/dma.h>
29 #include <sound/core.h>
30 #include <sound/gus.h>
31 #define SNDRV_LEGACY_FIND_FREE_IRQ
32 #define SNDRV_LEGACY_FIND_FREE_DMA
33 #include <sound/initval.h>
34
35 #define CRD_NAME "Gravis UltraSound Classic"
36 #define DEV_NAME "gusclassic"
37
38 MODULE_DESCRIPTION(CRD_NAME);
39 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
40 MODULE_LICENSE("GPL");
41 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
42
43 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
45 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
46 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */
47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 3,5,9,11,12,15 */
48 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
49 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */
50 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
51 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
52 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
53 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
54
55 module_param_array(index, int, NULL, 0444);
56 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
57 module_param_array(id, charp, NULL, 0444);
58 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
59 module_param_array(enable, bool, NULL, 0444);
60 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
61 module_param_array(port, long, NULL, 0444);
62 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
63 module_param_array(irq, int, NULL, 0444);
64 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
65 module_param_array(dma1, int, NULL, 0444);
66 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
67 module_param_array(dma2, int, NULL, 0444);
68 MODULE_PARM_DESC(dma2, "DMA2 # 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
76 static int __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
77 {
78 return enable[n];
79 }
80
81 static int __devinit snd_gusclassic_create(struct snd_card *card,
82 struct device *dev, unsigned int n, struct snd_gus_card **rgus)
83 {
84 static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
85 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
86 static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
87
88 int i, error;
89
90 if (irq[n] == SNDRV_AUTO_IRQ) {
91 irq[n] = snd_legacy_find_free_irq(possible_irqs);
92 if (irq[n] < 0) {
93 dev_err(dev, "unable to find a free IRQ\n");
94 return -EBUSY;
95 }
96 }
97 if (dma1[n] == SNDRV_AUTO_DMA) {
98 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
99 if (dma1[n] < 0) {
100 dev_err(dev, "unable to find a free DMA1\n");
101 return -EBUSY;
102 }
103 }
104 if (dma2[n] == SNDRV_AUTO_DMA) {
105 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
106 if (dma2[n] < 0) {
107 dev_err(dev, "unable to find a free DMA2\n");
108 return -EBUSY;
109 }
110 }
111
112 if (port[n] != SNDRV_AUTO_PORT)
113 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
114 0, channels[n], pcm_channels[n], 0, rgus);
115
116 i = 0;
117 do {
118 port[n] = possible_ports[i];
119 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
120 0, channels[n], pcm_channels[n], 0, rgus);
121 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
122
123 return error;
124 }
125
126 static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
127 {
128 unsigned char d;
129
130 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
131 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
132 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
133 return -ENODEV;
134 }
135 udelay(160);
136 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */
137 udelay(160);
138 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
139 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
140 return -ENODEV;
141 }
142 return 0;
143 }
144
145 static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
146 {
147 struct snd_card *card;
148 struct snd_gus_card *gus;
149 int error;
150
151 error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
152 if (error < 0)
153 return error;
154
155 if (pcm_channels[n] < 2)
156 pcm_channels[n] = 2;
157
158 error = snd_gusclassic_create(card, dev, n, &gus);
159 if (error < 0)
160 goto out;
161
162 error = snd_gusclassic_detect(gus);
163 if (error < 0)
164 goto out;
165
166 gus->joystick_dac = joystick_dac[n];
167
168 error = snd_gus_initialize(gus);
169 if (error < 0)
170 goto out;
171
172 error = -ENODEV;
173 if (gus->max_flag || gus->ess_flag) {
174 dev_err(dev, "GUS Classic or ACE soundcard was "
175 "not detected at 0x%lx\n", gus->gf1.port);
176 goto out;
177 }
178
179 error = snd_gf1_new_mixer(gus);
180 if (error < 0)
181 goto out;
182
183 error = snd_gf1_pcm_new(gus, 0, 0, NULL);
184 if (error < 0)
185 goto out;
186
187 if (!gus->ace_flag) {
188 error = snd_gf1_rawmidi_new(gus, 0, NULL);
189 if (error < 0)
190 goto out;
191 }
192
193 sprintf(card->longname + strlen(card->longname),
194 " at 0x%lx, irq %d, dma %d",
195 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
196
197 if (gus->gf1.dma2 >= 0)
198 sprintf(card->longname + strlen(card->longname),
199 "&%d", gus->gf1.dma2);
200
201 snd_card_set_dev(card, dev);
202
203 error = snd_card_register(card);
204 if (error < 0)
205 goto out;
206
207 dev_set_drvdata(dev, card);
208 return 0;
209
210 out: snd_card_free(card);
211 return error;
212 }
213
214 static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
215 {
216 snd_card_free(dev_get_drvdata(dev));
217 dev_set_drvdata(dev, NULL);
218 return 0;
219 }
220
221 static struct isa_driver snd_gusclassic_driver = {
222 .match = snd_gusclassic_match,
223 .probe = snd_gusclassic_probe,
224 .remove = __devexit_p(snd_gusclassic_remove),
225 #if 0 /* FIXME */
226 .suspend = snd_gusclassic_suspend,
227 .remove = snd_gusclassic_remove,
228 #endif
229 .driver = {
230 .name = DEV_NAME
231 }
232 };
233
234 static int __init alsa_card_gusclassic_init(void)
235 {
236 return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
237 }
238
239 static void __exit alsa_card_gusclassic_exit(void)
240 {
241 isa_unregister_driver(&snd_gusclassic_driver);
242 }
243
244 module_init(alsa_card_gusclassic_init);
245 module_exit(alsa_card_gusclassic_exit);
246
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