20a24225d8
As drvdata is cleared to NULL at probe failure or at removal by the driver core, we don't have to call pci_set_drvdata(pci, NULL) any longer in each driver. The only remaining pci_set_drvdata(NULL) is in azx_firmware_cb() in hda_intel.c. Since this function itself releases the card instance, we need to clear drvdata here as well, so that it won't be released doubly in the remove callback. Signed-off-by: Takashi Iwai <tiwai@suse.de>
160 lines
4.3 KiB
C
160 lines
4.3 KiB
C
/*
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* xfi linux driver.
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*
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* This source file is released under GPL v2 license (no other versions).
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* See the COPYING file included in the main directory of this source
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* distribution for the license terms and conditions.
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*/
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/moduleparam.h>
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#include <linux/pci_ids.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include "ctatc.h"
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#include "cthardware.h"
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MODULE_AUTHOR("Creative Technology Ltd");
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MODULE_DESCRIPTION("X-Fi driver version 1.03");
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MODULE_LICENSE("GPL v2");
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MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
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static unsigned int reference_rate = 48000;
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static unsigned int multiple = 2;
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MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
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module_param(reference_rate, uint, S_IRUGO);
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MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
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module_param(multiple, uint, S_IRUGO);
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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static unsigned int subsystem[SNDRV_CARDS];
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
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module_param_array(subsystem, int, NULL, 0444);
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MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");
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static DEFINE_PCI_DEVICE_TABLE(ct_pci_dev_ids) = {
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/* only X-Fi is supported, so... */
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{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
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.driver_data = ATC20K1,
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},
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{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
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.driver_data = ATC20K2,
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},
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
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static int
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ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
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{
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static int dev;
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struct snd_card *card;
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struct ct_atc *atc;
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int err;
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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if (!enable[dev]) {
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dev++;
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return -ENOENT;
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}
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err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
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if (err)
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return err;
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if ((reference_rate != 48000) && (reference_rate != 44100)) {
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printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n",
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reference_rate);
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printk(KERN_ERR "ctxfi: The valid values for reference_rate "
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"are 48000 and 44100, Value 48000 is assumed.\n");
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reference_rate = 48000;
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}
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if ((multiple != 1) && (multiple != 2) && (multiple != 4)) {
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printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n",
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multiple);
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printk(KERN_ERR "ctxfi: The valid values for multiple are "
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"1, 2 and 4, Value 2 is assumed.\n");
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multiple = 2;
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}
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err = ct_atc_create(card, pci, reference_rate, multiple,
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pci_id->driver_data, subsystem[dev], &atc);
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if (err < 0)
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goto error;
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card->private_data = atc;
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/* Create alsa devices supported by this card */
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err = ct_atc_create_alsa_devs(atc);
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if (err < 0)
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goto error;
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strcpy(card->driver, "SB-XFi");
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strcpy(card->shortname, "Creative X-Fi");
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snprintf(card->longname, sizeof(card->longname), "%s %s %s",
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card->shortname, atc->chip_name, atc->model_name);
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err = snd_card_register(card);
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if (err < 0)
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goto error;
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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error:
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snd_card_free(card);
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return err;
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}
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static void ct_card_remove(struct pci_dev *pci)
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{
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snd_card_free(pci_get_drvdata(pci));
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}
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#ifdef CONFIG_PM_SLEEP
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static int ct_card_suspend(struct device *dev)
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{
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struct snd_card *card = dev_get_drvdata(dev);
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struct ct_atc *atc = card->private_data;
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return atc->suspend(atc);
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}
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static int ct_card_resume(struct device *dev)
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{
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struct snd_card *card = dev_get_drvdata(dev);
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struct ct_atc *atc = card->private_data;
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return atc->resume(atc);
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}
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static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);
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#define CT_CARD_PM_OPS &ct_card_pm
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#else
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#define CT_CARD_PM_OPS NULL
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#endif
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static struct pci_driver ct_driver = {
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.name = KBUILD_MODNAME,
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.id_table = ct_pci_dev_ids,
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.probe = ct_card_probe,
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.remove = ct_card_remove,
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.driver = {
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.pm = CT_CARD_PM_OPS,
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},
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};
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module_pci_driver(ct_driver);
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