xfi.c
4.26 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*
* xfi linux driver.
*
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
*
* This source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
#include <linux/pci_ids.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "ctatc.h"
#include "cthardware.h"
MODULE_AUTHOR("Creative Technology Ltd");
MODULE_DESCRIPTION("X-Fi driver version 1.03");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
static unsigned int reference_rate = 48000;
static unsigned int multiple = 2;
MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
module_param(reference_rate, uint, S_IRUGO);
MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
module_param(multiple, uint, S_IRUGO);
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static unsigned int subsystem[SNDRV_CARDS];
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
module_param_array(subsystem, int, NULL, 0444);
MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");
static DEFINE_PCI_DEVICE_TABLE(ct_pci_dev_ids) = {
/* only X-Fi is supported, so... */
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
.driver_data = ATC20K1,
},
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
.driver_data = ATC20K2,
},
{ 0, }
};
MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
static int
ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct ct_atc *atc;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
if (err)
return err;
if ((reference_rate != 48000) && (reference_rate != 44100)) {
printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n",
reference_rate);
printk(KERN_ERR "ctxfi: The valid values for reference_rate "
"are 48000 and 44100, Value 48000 is assumed.\n");
reference_rate = 48000;
}
if ((multiple != 1) && (multiple != 2) && (multiple != 4)) {
printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n",
multiple);
printk(KERN_ERR "ctxfi: The valid values for multiple are "
"1, 2 and 4, Value 2 is assumed.\n");
multiple = 2;
}
err = ct_atc_create(card, pci, reference_rate, multiple,
pci_id->driver_data, subsystem[dev], &atc);
if (err < 0)
goto error;
card->private_data = atc;
/* Create alsa devices supported by this card */
err = ct_atc_create_alsa_devs(atc);
if (err < 0)
goto error;
strcpy(card->driver, "SB-XFi");
strcpy(card->shortname, "Creative X-Fi");
snprintf(card->longname, sizeof(card->longname), "%s %s %s",
card->shortname, atc->chip_name, atc->model_name);
err = snd_card_register(card);
if (err < 0)
goto error;
pci_set_drvdata(pci, card);
dev++;
return 0;
error:
snd_card_free(card);
return err;
}
static void ct_card_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
}
#ifdef CONFIG_PM_SLEEP
static int ct_card_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct ct_atc *atc = card->private_data;
return atc->suspend(atc);
}
static int ct_card_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct ct_atc *atc = card->private_data;
return atc->resume(atc);
}
static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);
#define CT_CARD_PM_OPS &ct_card_pm
#else
#define CT_CARD_PM_OPS NULL
#endif
static struct pci_driver ct_driver = {
.name = KBUILD_MODNAME,
.id_table = ct_pci_dev_ids,
.probe = ct_card_probe,
.remove = ct_card_remove,
.driver = {
.pm = CT_CARD_PM_OPS,
},
};
module_pci_driver(ct_driver);