1/*
2 * xfi linux driver.
3 *
4 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
5 *
6 * This source file is released under GPL v2 license (no other versions).
7 * See the COPYING file included in the main directory of this source
8 * distribution for the license terms and conditions.
9 */
10
11#include <linux/init.h>
12#include <linux/pci.h>
13#include <linux/moduleparam.h>
14#include <linux/pci_ids.h>
15#include <linux/module.h>
16#include <sound/core.h>
17#include <sound/initval.h>
18#include "ctatc.h"
19#include "cthardware.h"
20
21MODULE_AUTHOR("Creative Technology Ltd");
22MODULE_DESCRIPTION("X-Fi driver version 1.03");
23MODULE_LICENSE("GPL v2");
24MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
25
26static unsigned int reference_rate = 48000;
27static unsigned int multiple = 2;
28MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
29module_param(reference_rate, uint, S_IRUGO);
30MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
31module_param(multiple, uint, S_IRUGO);
32
33static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
34static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
35static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
36static unsigned int subsystem[SNDRV_CARDS];
37
38module_param_array(index, int, NULL, 0444);
39MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
40module_param_array(id, charp, NULL, 0444);
41MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
42module_param_array(enable, bool, NULL, 0444);
43MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
44module_param_array(subsystem, int, NULL, 0444);
45MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");
46
47static const struct pci_device_id ct_pci_dev_ids[] = {
48	/* only X-Fi is supported, so... */
49	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
50	  .driver_data = ATC20K1,
51	},
52	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
53	  .driver_data = ATC20K2,
54	},
55	{ 0, }
56};
57MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
58
59static int
60ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
61{
62	static int dev;
63	struct snd_card *card;
64	struct ct_atc *atc;
65	int err;
66
67	if (dev >= SNDRV_CARDS)
68		return -ENODEV;
69
70	if (!enable[dev]) {
71		dev++;
72		return -ENOENT;
73	}
74	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
75			   0, &card);
76	if (err)
77		return err;
78	if ((reference_rate != 48000) && (reference_rate != 44100)) {
79		dev_err(card->dev,
80			"Invalid reference_rate value %u!!!\n",
81			reference_rate);
82		dev_err(card->dev,
83			"The valid values for reference_rate are 48000 and 44100, Value 48000 is assumed.\n");
84		reference_rate = 48000;
85	}
86	if ((multiple != 1) && (multiple != 2) && (multiple != 4)) {
87		dev_err(card->dev, "Invalid multiple value %u!!!\n",
88			multiple);
89		dev_err(card->dev,
90			"The valid values for multiple are 1, 2 and 4, Value 2 is assumed.\n");
91		multiple = 2;
92	}
93	err = ct_atc_create(card, pci, reference_rate, multiple,
94			    pci_id->driver_data, subsystem[dev], &atc);
95	if (err < 0)
96		goto error;
97
98	card->private_data = atc;
99
100	/* Create alsa devices supported by this card */
101	err = ct_atc_create_alsa_devs(atc);
102	if (err < 0)
103		goto error;
104
105	strcpy(card->driver, "SB-XFi");
106	strcpy(card->shortname, "Creative X-Fi");
107	snprintf(card->longname, sizeof(card->longname), "%s %s %s",
108		 card->shortname, atc->chip_name, atc->model_name);
109
110	err = snd_card_register(card);
111	if (err < 0)
112		goto error;
113
114	pci_set_drvdata(pci, card);
115	dev++;
116
117	return 0;
118
119error:
120	snd_card_free(card);
121	return err;
122}
123
124static void ct_card_remove(struct pci_dev *pci)
125{
126	snd_card_free(pci_get_drvdata(pci));
127}
128
129#ifdef CONFIG_PM_SLEEP
130static int ct_card_suspend(struct device *dev)
131{
132	struct snd_card *card = dev_get_drvdata(dev);
133	struct ct_atc *atc = card->private_data;
134
135	return atc->suspend(atc);
136}
137
138static int ct_card_resume(struct device *dev)
139{
140	struct snd_card *card = dev_get_drvdata(dev);
141	struct ct_atc *atc = card->private_data;
142
143	return atc->resume(atc);
144}
145
146static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);
147#define CT_CARD_PM_OPS	&ct_card_pm
148#else
149#define CT_CARD_PM_OPS	NULL
150#endif
151
152static struct pci_driver ct_driver = {
153	.name = KBUILD_MODNAME,
154	.id_table = ct_pci_dev_ids,
155	.probe = ct_card_probe,
156	.remove = ct_card_remove,
157	.driver = {
158		.pm = CT_CARD_PM_OPS,
159	},
160};
161
162module_pci_driver(ct_driver);
163