diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/ctxfi/xfi.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/ctxfi/xfi.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/pci/ctxfi/xfi.c b/ANDROID_3.4.5/sound/pci/ctxfi/xfi.c new file mode 100644 index 00000000..15d95d2b --- /dev/null +++ b/ANDROID_3.4.5/sound/pci/ctxfi/xfi.c @@ -0,0 +1,168 @@ +/* + * 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 __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 "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 __devexit ct_card_remove(struct pci_dev *pci) +{ + snd_card_free(pci_get_drvdata(pci)); + pci_set_drvdata(pci, NULL); +} + +#ifdef CONFIG_PM +static int ct_card_suspend(struct pci_dev *pci, pm_message_t state) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct ct_atc *atc = card->private_data; + + return atc->suspend(atc, state); +} + +static int ct_card_resume(struct pci_dev *pci) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct ct_atc *atc = card->private_data; + + return atc->resume(atc); +} +#endif + +static struct pci_driver ct_driver = { + .name = KBUILD_MODNAME, + .id_table = ct_pci_dev_ids, + .probe = ct_card_probe, + .remove = __devexit_p(ct_card_remove), +#ifdef CONFIG_PM + .suspend = ct_card_suspend, + .resume = ct_card_resume, +#endif +}; + +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) |