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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#define SNDRV_LEGACY_FIND_FREE_IRQ
17#define SNDRV_LEGACY_FIND_FREE_DMA
18#include <sound/initval.h>
19
20#define CRD_NAME "Gravis UltraSound Classic"
21#define DEV_NAME "gusclassic"
22
23MODULE_DESCRIPTION(CRD_NAME);
24MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
25MODULE_LICENSE("GPL");
26MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
27
28static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
29static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
30static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
31static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
32static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
33static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
34static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
35static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
36
37static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
38static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
39
40module_param_array(index, int, NULL, 0444);
41MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
42module_param_array(id, charp, NULL, 0444);
43MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
44module_param_array(enable, bool, NULL, 0444);
45MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
46module_param_hw_array(port, long, ioport, NULL, 0444);
47MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
48module_param_hw_array(irq, int, irq, NULL, 0444);
49MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
50module_param_hw_array(dma1, int, dma, NULL, 0444);
51MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
52module_param_hw_array(dma2, int, dma, NULL, 0444);
53MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
54module_param_array(joystick_dac, int, NULL, 0444);
55MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
56module_param_array(channels, int, NULL, 0444);
57MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
58module_param_array(pcm_channels, int, NULL, 0444);
59MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
60
61static int snd_gusclassic_match(struct device *dev, unsigned int n)
62{
63 return enable[n];
64}
65
66static int snd_gusclassic_create(struct snd_card *card,
67 struct device *dev, unsigned int n,
68 struct snd_gus_card **rgus)
69{
70 static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
71 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
72 static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
73
74 int i, error;
75
76 if (irq[n] == SNDRV_AUTO_IRQ) {
77 irq[n] = snd_legacy_find_free_irq(possible_irqs);
78 if (irq[n] < 0) {
79 dev_err(dev, "unable to find a free IRQ\n");
80 return -EBUSY;
81 }
82 }
83 if (dma1[n] == SNDRV_AUTO_DMA) {
84 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
85 if (dma1[n] < 0) {
86 dev_err(dev, "unable to find a free DMA1\n");
87 return -EBUSY;
88 }
89 }
90 if (dma2[n] == SNDRV_AUTO_DMA) {
91 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
92 if (dma2[n] < 0) {
93 dev_err(dev, "unable to find a free DMA2\n");
94 return -EBUSY;
95 }
96 }
97
98 if (port[n] != SNDRV_AUTO_PORT)
99 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
100 0, channels[n], pcm_channels[n], 0, rgus);
101
102 i = 0;
103 do {
104 port[n] = possible_ports[i];
105 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
106 0, channels[n], pcm_channels[n], 0, rgus);
107 } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
108
109 return error;
110}
111
112static int snd_gusclassic_detect(struct snd_gus_card *gus)
113{
114 unsigned char d;
115
116 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);
117 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
118 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
119 return -ENODEV;
120 }
121 udelay(160);
122 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);
123 udelay(160);
124 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
125 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
126 return -ENODEV;
127 }
128 return 0;
129}
130
131static int snd_gusclassic_probe(struct device *dev, unsigned int n)
132{
133 struct snd_card *card;
134 struct snd_gus_card *gus;
135 int error;
136
137 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
138 if (error < 0)
139 return error;
140
141 if (pcm_channels[n] < 2)
142 pcm_channels[n] = 2;
143
144 error = snd_gusclassic_create(card, dev, n, &gus);
145 if (error < 0)
146 goto out;
147
148 error = snd_gusclassic_detect(gus);
149 if (error < 0)
150 goto out;
151
152 gus->joystick_dac = joystick_dac[n];
153
154 error = snd_gus_initialize(gus);
155 if (error < 0)
156 goto out;
157
158 error = -ENODEV;
159 if (gus->max_flag || gus->ess_flag) {
160 dev_err(dev, "GUS Classic or ACE soundcard was "
161 "not detected at 0x%lx\n", gus->gf1.port);
162 goto out;
163 }
164
165 error = snd_gf1_new_mixer(gus);
166 if (error < 0)
167 goto out;
168
169 error = snd_gf1_pcm_new(gus, 0, 0);
170 if (error < 0)
171 goto out;
172
173 if (!gus->ace_flag) {
174 error = snd_gf1_rawmidi_new(gus, 0);
175 if (error < 0)
176 goto out;
177 }
178
179 sprintf(card->longname + strlen(card->longname),
180 " at 0x%lx, irq %d, dma %d",
181 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
182
183 if (gus->gf1.dma2 >= 0)
184 sprintf(card->longname + strlen(card->longname),
185 "&%d", gus->gf1.dma2);
186
187 error = snd_card_register(card);
188 if (error < 0)
189 goto out;
190
191 dev_set_drvdata(dev, card);
192 return 0;
193
194out: snd_card_free(card);
195 return error;
196}
197
198static int snd_gusclassic_remove(struct device *dev, unsigned int n)
199{
200 snd_card_free(dev_get_drvdata(dev));
201 return 0;
202}
203
204static struct isa_driver snd_gusclassic_driver = {
205 .match = snd_gusclassic_match,
206 .probe = snd_gusclassic_probe,
207 .remove = snd_gusclassic_remove,
208#if 0
209 .suspend = snd_gusclassic_suspend,
210 .remove = snd_gusclassic_remove,
211#endif
212 .driver = {
213 .name = DEV_NAME
214 }
215};
216
217module_isa_driver(snd_gusclassic_driver, SNDRV_CARDS);
218
