[ALSA] gus - Use platform_device
[linux-2.6.git] / sound / isa / gus / gusclassic.c
1 /*
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>
23 #include <linux/init.h>
24 #include <linux/err.h>
25 #include <linux/platform_device.h>
26 #include <linux/delay.h>
27 #include <linux/time.h>
28 #include <linux/moduleparam.h>
29 #include <asm/dma.h>
30 #include <sound/core.h>
31 #include <sound/gus.h>
32 #define SNDRV_LEGACY_FIND_FREE_IRQ
33 #define SNDRV_LEGACY_FIND_FREE_DMA
34 #include <sound/initval.h>
35
36 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
37 MODULE_DESCRIPTION("Gravis UltraSound Classic");
38 MODULE_LICENSE("GPL");
39 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
40
41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
43 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
44 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
45 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 3,5,9,11,12,15 */
46 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
47 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
48 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
49                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
50 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
51 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
52
53 module_param_array(index, int, NULL, 0444);
54 MODULE_PARM_DESC(index, "Index value for GUS Classic soundcard.");
55 module_param_array(id, charp, NULL, 0444);
56 MODULE_PARM_DESC(id, "ID string for GUS Classic soundcard.");
57 module_param_array(enable, bool, NULL, 0444);
58 MODULE_PARM_DESC(enable, "Enable GUS Classic soundcard.");
59 module_param_array(port, long, NULL, 0444);
60 MODULE_PARM_DESC(port, "Port # for GUS Classic driver.");
61 module_param_array(irq, int, NULL, 0444);
62 MODULE_PARM_DESC(irq, "IRQ # for GUS Classic driver.");
63 module_param_array(dma1, int, NULL, 0444);
64 MODULE_PARM_DESC(dma1, "DMA1 # for GUS Classic driver.");
65 module_param_array(dma2, int, NULL, 0444);
66 MODULE_PARM_DESC(dma2, "DMA2 # for GUS Classic driver.");
67 module_param_array(joystick_dac, int, NULL, 0444);
68 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS Classic driver.");
69 module_param_array(channels, int, NULL, 0444);
70 MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver.");
71 module_param_array(pcm_channels, int, NULL, 0444);
72 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver.");
73
74
75 #define PFX     "gusclassic: "
76
77 static int __init snd_gusclassic_detect(struct snd_gus_card * gus)
78 {
79         unsigned char d;
80
81         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
82         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
83                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
84                 return -ENODEV;
85         }
86         udelay(160);
87         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
88         udelay(160);
89         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
90                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
91                 return -ENODEV;
92         }
93         return 0;
94 }
95
96 static void __init snd_gusclassic_init(int dev, struct snd_gus_card * gus)
97 {
98         gus->equal_irq = 0;
99         gus->codec_flag = 0;
100         gus->max_flag = 0;
101         gus->joystick_dac = joystick_dac[dev];
102 }
103
104 static int __init snd_gusclassic_probe(struct platform_device *pdev)
105 {
106         int dev = pdev->id;
107         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
108         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
109         int xirq, xdma1, xdma2;
110         struct snd_card *card;
111         struct snd_gus_card *gus = NULL;
112         int err;
113
114         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
115         if (card == NULL)
116                 return -ENOMEM;
117         if (pcm_channels[dev] < 2)
118                 pcm_channels[dev] = 2;
119
120         xirq = irq[dev];
121         if (xirq == SNDRV_AUTO_IRQ) {
122                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
123                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
124                         err = -EBUSY;
125                         goto _err;
126                 }
127         }
128         xdma1 = dma1[dev];
129         if (xdma1 == SNDRV_AUTO_DMA) {
130                 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
131                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
132                         err = -EBUSY;
133                         goto _err;
134                 }
135         }
136         xdma2 = dma2[dev];
137         if (xdma2 == SNDRV_AUTO_DMA) {
138                 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
139                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
140                         err = -EBUSY;
141                         goto _err;
142                 }
143         }
144
145         if (port[dev] != SNDRV_AUTO_PORT) {
146                 err = snd_gus_create(card,
147                                      port[dev],
148                                      xirq, xdma1, xdma2,
149                                      0, channels[dev], pcm_channels[dev],
150                                      0, &gus);
151         } else {
152                 /* auto-probe legacy ports */
153                 static unsigned long possible_ports[] = {
154                         0x220, 0x230, 0x240, 0x250, 0x260,
155                 };
156                 int i;
157                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
158                         err = snd_gus_create(card,
159                                              possible_ports[i],
160                                              xirq, xdma1, xdma2,
161                                              0, channels[dev], pcm_channels[dev],
162                                              0, &gus);
163                         if (err >= 0) {
164                                 port[dev] = possible_ports[i];
165                                 break;
166                         }
167                 }
168         }
169         if (err < 0)
170                 goto _err;
171
172         if ((err = snd_gusclassic_detect(gus)) < 0)
173                 goto _err;
174
175         snd_gusclassic_init(dev, gus);
176         if ((err = snd_gus_initialize(gus)) < 0)
177                 goto _err;
178
179         if (gus->max_flag || gus->ess_flag) {
180                 snd_printk(KERN_ERR PFX "GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port);
181                 err = -ENODEV;
182                 goto _err;
183         }
184
185         if ((err = snd_gf1_new_mixer(gus)) < 0)
186                 goto _err;
187
188         if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0)
189                 goto _err;
190
191         if (!gus->ace_flag) {
192                 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0)
193                         goto _err;
194         }
195         sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1);
196         if (dma2 >= 0)
197                 sprintf(card->longname + strlen(card->longname), "&%d", xdma2);
198
199         snd_card_set_dev(card, &pdev->dev);
200
201         if ((err = snd_card_register(card)) < 0)
202                 goto _err;
203
204         platform_set_drvdata(pdev, card);
205         return 0;
206
207  _err:
208         snd_card_free(card);
209         return err;
210 }
211
212 static int snd_gusclassic_remove(struct platform_device *devptr)
213 {
214         snd_card_free(platform_get_drvdata(devptr));
215         platform_set_drvdata(devptr, NULL);
216         return 0;
217 }
218
219 #define GUSCLASSIC_DRIVER       "snd_gusclassic"
220
221 static struct platform_driver snd_gusclassic_driver = {
222         .probe          = snd_gusclassic_probe,
223         .remove         = snd_gusclassic_remove,
224         /* FIXME: suspend/resume */
225         .driver         = {
226                 .name   = GUSCLASSIC_DRIVER
227         },
228 };
229
230 static int __init alsa_card_gusclassic_init(void)
231 {
232         int i, cards, err;
233
234         err = platform_driver_register(&snd_gusclassic_driver);
235         if (err < 0)
236                 return err;
237
238         cards = 0;
239         for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
240                 struct platform_device *device;
241                 device = platform_device_register_simple(GUSCLASSIC_DRIVER,
242                                                          i, NULL, 0);
243                 if (IS_ERR(device)) {
244                         err = PTR_ERR(device);
245                         goto errout;
246                 }
247                 cards++;
248         }
249         if (!cards) {
250 #ifdef MODULE
251                 printk(KERN_ERR "GUS Classic soundcard not found or device busy\n");
252 #endif
253                 err = -ENODEV;
254                 goto errout;
255         }
256         return 0;
257
258  errout:
259         platform_driver_unregister(&snd_gusclassic_driver);
260         return err;
261 }
262
263 static void __exit alsa_card_gusclassic_exit(void)
264 {
265         platform_driver_unregister(&snd_gusclassic_driver);
266 }
267
268 module_init(alsa_card_gusclassic_init)
269 module_exit(alsa_card_gusclassic_exit)