ALSA: SB X-Fi driver merge

The Sound Blaster X-Fi driver supports Creative solutions based on
20K1 and 20K2 chipsets.

Supported hardware :

Creative Sound Blaster X-Fi Titanium Fatal1ty® Champion Series
Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
Creative Sound Blaster X-Fi Titanium Professional Audio
Creative Sound Blaster X-Fi Titanium
Creative Sound Blaster X-Fi Elite Pro
Creative Sound Blaster X-Fi Platinum
Creative Sound Blaster X-Fi Fatal1ty
Creative Sound Blaster X-Fi XtremeGamer
Creative Sound Blaster X-Fi XtremeMusic

Current release features:

* ALSA PCM Playback
* ALSA Record
* ALSA Mixer

Note:

* External I/O modules detection not included.

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 125 insertions, 0 deletions

diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
new file mode 100644
index 000000000000..f91144036512
--- /dev/null
+++ b/sound/pci/ctxfi/xfi.c
@@ -0,0 +1,125 @@
+/*
+ * 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 <sound/core.h>
+#include <sound/initval.h>
+#include "ctatc.h"
+#include "ctdrv.h"
+
+MODULE_AUTHOR("Creative Technology Ltd");
+MODULE_DESCRIPTION("X-Fi driver version 1.03");
+MODULE_LICENSE("GPLv2");
+MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
+
+static unsigned int reference_rate = 48000;
+static unsigned int multiple = 2;
+module_param(reference_rate, uint, S_IRUGO);
+module_param(multiple, uint, S_IRUGO);
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+static struct pci_device_id ct_pci_dev_ids[] = {
+	/* only X-Fi is supported, so... */
+	{ PCI_DEVICE(PCI_VENDOR_CREATIVE, PCI_DEVICE_CREATIVE_20K1) },
+	{ PCI_DEVICE(PCI_VENDOR_CREATIVE, PCI_DEVICE_CREATIVE_20K2) },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
+
+static int __devinit
+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 "Invalid reference_rate value %u!!!\n"
+				"The valid values for reference_rate "
+				"are 48000 and 44100.\nValue 48000 is "
+				"assumed.\n", reference_rate);
+		reference_rate = 48000;
+	}
+	if ((multiple != 1) && (multiple != 2)) {
+		printk(KERN_ERR "Invalid multiple value %u!!!\nThe valid "
+				"values for multiple are 1 and 2.\nValue 2 "
+				"is assumed.\n", multiple);
+		multiple = 2;
+	}
+	err = ct_atc_create(card, pci, reference_rate, multiple, &atc);
+	if (err < 0)
+		goto error;
+
+	card->private_data = atc;
+
+	/* Create alsa devices supported by this card */
+	err = atc->create_alsa_devs(atc);
+	if (err < 0)
+		goto error;
+
+	strcpy(card->driver, "SB-XFi");
+	strcpy(card->shortname, "Creative X-Fi");
+	strcpy(card->longname, "Creative ALSA Driver X-Fi");
+
+	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 __devexit ct_card_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+	pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver ct_driver = {
+	.name = "SB-XFi",
+	.id_table = ct_pci_dev_ids,
+	.probe = ct_card_probe,
+	.remove = __devexit_p(ct_card_remove),
+};
+
+static int __init ct_card_init(void)
+{
+	return pci_register_driver(&ct_driver);
+}
+
+static void __exit ct_card_exit(void)
+{
+	pci_unregister_driver(&ct_driver);
+}
+
+module_init(ct_card_init)
+module_exit(ct_card_exit)