1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * xfi linux driver.
4 *
5 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
6 */
7
8 #include <linux/init.h>
9 #include <linux/pci.h>
10 #include <linux/moduleparam.h>
11 #include <linux/pci_ids.h>
12 #include <linux/module.h>
13 #include <sound/core.h>
14 #include <sound/initval.h>
15 #include "ctatc.h"
16 #include "cthardware.h"
17
18 MODULE_AUTHOR("Creative Technology Ltd");
19 MODULE_DESCRIPTION("X-Fi driver version 1.03");
20 MODULE_LICENSE("GPL v2");
21
22 static unsigned int reference_rate = 48000;
23 static unsigned int multiple = 2;
24 MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
25 module_param(reference_rate, uint, 0444);
26 MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
27 module_param(multiple, uint, 0444);
28
29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
32 static unsigned int subsystem[SNDRV_CARDS];
33
34 module_param_array(index, int, NULL, 0444);
35 MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
36 module_param_array(id, charp, NULL, 0444);
37 MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
38 module_param_array(enable, bool, NULL, 0444);
39 MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
40 module_param_array(subsystem, int, NULL, 0444);
41 MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");
42
43 static const struct pci_device_id ct_pci_dev_ids[] = {
44 /* only X-Fi is supported, so... */
45 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
46 .driver_data = ATC20K1,
47 },
48 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
49 .driver_data = ATC20K2,
50 },
51 { 0, }
52 };
53 MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
54
55 static int
56 ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
57 {
58 static int dev;
59 struct snd_card *card;
60 struct ct_atc *atc;
61 int err;
62
63 if (dev >= SNDRV_CARDS)
64 return -ENODEV;
65
66 if (!enable[dev]) {
67 dev++;
68 return -ENOENT;
69 }
70 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
71 0, &card);
72 if (err)
73 return err;
74 if ((reference_rate != 48000) && (reference_rate != 44100)) {
75 dev_err(card->dev,
76 "Invalid reference_rate value %u!!!\n",
77 reference_rate);
78 dev_err(card->dev,
79 "The valid values for reference_rate are 48000 and 44100, Value 48000 is assumed.\n");
80 reference_rate = 48000;
81 }
82 if ((multiple != 1) && (multiple != 2) && (multiple != 4)) {
83 dev_err(card->dev, "Invalid multiple value %u!!!\n",
84 multiple);
85 dev_err(card->dev,
86 "The valid values for multiple are 1, 2 and 4, Value 2 is assumed.\n");
87 multiple = 2;
88 }
89 err = ct_atc_create(card, pci, reference_rate, multiple,
90 pci_id->driver_data, subsystem[dev], &atc);
91 if (err < 0)
92 goto error;
93
94 card->private_data = atc;
95
96 /* Create alsa devices supported by this card */
97 err = ct_atc_create_alsa_devs(atc);
98 if (err < 0)
99 goto error;
100
101 strcpy(card->driver, "SB-XFi");
102 strcpy(card->shortname, "Creative X-Fi");
103 snprintf(card->longname, sizeof(card->longname), "%s %s %s",
104 card->shortname, atc->chip_name, atc->model_name);
105
106 err = snd_card_register(card);
107 if (err < 0)
108 goto error;
109
110 pci_set_drvdata(pci, card);
111 dev++;
112
113 return 0;
114
115 error:
116 snd_card_free(card);
117 return err;
118 }
119
120 static void ct_card_remove(struct pci_dev *pci)
121 {
122 snd_card_free(pci_get_drvdata(pci));
123 }
124
125 #ifdef CONFIG_PM_SLEEP
126 static int ct_card_suspend(struct device *dev)
127 {
128 struct snd_card *card = dev_get_drvdata(dev);
129 struct ct_atc *atc = card->private_data;
130
131 return atc->suspend(atc);
132 }
133
134 static int ct_card_resume(struct device *dev)
135 {
136 struct snd_card *card = dev_get_drvdata(dev);
137 struct ct_atc *atc = card->private_data;
138
139 return atc->resume(atc);
140 }
141
142 static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);
143 #define CT_CARD_PM_OPS &ct_card_pm
144 #else
145 #define CT_CARD_PM_OPS NULL
146 #endif
147
148 static struct pci_driver ct_driver = {
149 .name = KBUILD_MODNAME,
150 .id_table = ct_pci_dev_ids,
151 .probe = ct_card_probe,
152 .remove = ct_card_remove,
153 .driver = {
154 .pm = CT_CARD_PM_OPS,
155 },
156 };
157
158 module_pci_driver(ct_driver);
159
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