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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
38MODULE_DESCRIPTION(CRD_NAME);
39MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
40MODULE_LICENSE("GPL");
41MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
42
43static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
45static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
46static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
47static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
48static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
49static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
50static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
51
52static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
53static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
54
55module_param_array(index, int, NULL, 0444);
56MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
57module_param_array(id, charp, NULL, 0444);
58MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
59module_param_array(enable, bool, NULL, 0444);
60MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
61module_param_array(port, long, NULL, 0444);
62MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
63module_param_array(irq, int, NULL, 0444);
64MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
65module_param_array(dma1, int, NULL, 0444);
66MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
67module_param_array(dma2, int, NULL, 0444);
68MODULE_PARM_DESC(dma2, "DMA2 # 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 __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
77{
78 return enable[n];
79}
80
81static 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 snd_printk(KERN_ERR "%s: unable to find a free IRQ\n",
94 dev->bus_id);
95 return -EBUSY;
96 }
97 }
98 if (dma1[n] == SNDRV_AUTO_DMA) {
99 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
100 if (dma1[n] < 0) {
101 snd_printk(KERN_ERR "%s: unable to find a free DMA1\n",
102 dev->bus_id);
103 return -EBUSY;
104 }
105 }
106 if (dma2[n] == SNDRV_AUTO_DMA) {
107 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
108 if (dma2[n] < 0) {
109 snd_printk(KERN_ERR "%s: unable to find a free DMA2\n",
110 dev->bus_id);
111 return -EBUSY;
112 }
113 }
114
115 if (port[n] != SNDRV_AUTO_PORT)
116 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
117 0, channels[n], pcm_channels[n], 0, rgus);
118
119 i = 0;
120 do {
121 port[n] = possible_ports[i];
122 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
123 0, channels[n], pcm_channels[n], 0, rgus);
124 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
125
126 return error;
127}
128
129static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
130{
131 unsigned char d;
132
133 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);
134 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
135 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
136 return -ENODEV;
137 }
138 udelay(160);
139 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);
140 udelay(160);
141 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
142 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
143 return -ENODEV;
144 }
145 return 0;
146}
147
148static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
149{
150 struct snd_card *card;
151 struct snd_gus_card *gus;
152 int error;
153
154 card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
155 if (!card)
156 return -EINVAL;
157
158 if (pcm_channels[n] < 2)
159 pcm_channels[n] = 2;
160
161 error = snd_gusclassic_create(card, dev, n, &gus);
162 if (error < 0)
163 goto out;
164
165 error = snd_gusclassic_detect(gus);
166 if (error < 0)
167 goto out;
168
169 gus->joystick_dac = joystick_dac[n];
170
171 error = snd_gus_initialize(gus);
172 if (error < 0)
173 goto out;
174
175 error = -ENODEV;
176 if (gus->max_flag || gus->ess_flag) {
177 snd_printk(KERN_ERR "%s: GUS Classic or ACE soundcard was "
178 "not detected at 0x%lx\n", dev->bus_id, gus->gf1.port);
179 goto out;
180 }
181
182 error = snd_gf1_new_mixer(gus);
183 if (error < 0)
184 goto out;
185
186 error = snd_gf1_pcm_new(gus, 0, 0, NULL);
187 if (error < 0)
188 goto out;
189
190 if (!gus->ace_flag) {
191 error = snd_gf1_rawmidi_new(gus, 0, NULL);
192 if (error < 0)
193 goto out;
194 }
195
196 sprintf(card->longname + strlen(card->longname),
197 " at 0x%lx, irq %d, dma %d",
198 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
199
200 if (gus->gf1.dma2 >= 0)
201 sprintf(card->longname + strlen(card->longname),
202 "&%d", gus->gf1.dma2);
203
204 snd_card_set_dev(card, dev);
205
206 error = snd_card_register(card);
207 if (error < 0)
208 goto out;
209
210 dev_set_drvdata(dev, card);
211 return 0;
212
213out: snd_card_free(card);
214 return error;
215}
216
217static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
218{
219 snd_card_free(dev_get_drvdata(dev));
220 dev_set_drvdata(dev, NULL);
221 return 0;
222}
223
224static struct isa_driver snd_gusclassic_driver = {
225 .match = snd_gusclassic_match,
226 .probe = snd_gusclassic_probe,
227 .remove = __devexit_p(snd_gusclassic_remove),
228#if 0
229 .suspend = snd_gusclassic_suspend,
230 .remove = snd_gusclassic_remove,
231#endif
232 .driver = {
233 .name = DEV_NAME
234 }
235};
236
237static int __init alsa_card_gusclassic_init(void)
238{
239 return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
240}
241
242static void __exit alsa_card_gusclassic_exit(void)
243{
244 isa_unregister_driver(&snd_gusclassic_driver);
245}
246
247module_init(alsa_card_gusclassic_init);
248module_exit(alsa_card_gusclassic_exit);
249
