/* * 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 #include #include #include #include #include #include #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 const struct pci_device_id 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 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_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 0, &card); if (err) return err; if ((reference_rate != 48000) && (reference_rate != 44100)) { dev_err(card->dev, "Invalid reference_rate value %u!!!\n", reference_rate); dev_err(card->dev, "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)) { dev_err(card->dev, "Invalid multiple value %u!!!\n", multiple); dev_err(card->dev, "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 ct_card_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); } #ifdef CONFIG_PM_SLEEP static int ct_card_suspend(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct ct_atc *atc = card->private_data; return atc->suspend(atc); } static int ct_card_resume(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct ct_atc *atc = card->private_data; return atc->resume(atc); } static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume); #define CT_CARD_PM_OPS &ct_card_pm #else #define CT_CARD_PM_OPS NULL #endif static struct pci_driver ct_driver = { .name = KBUILD_MODNAME, .id_table = ct_pci_dev_ids, .probe = ct_card_probe, .remove = ct_card_remove, .driver = { .pm = CT_CARD_PM_OPS, }, }; module_pci_driver(ct_driver); committerDavid S. Miller <davem@davemloft.net>2017-02-03 17:17:52 -0500 commit3ffc1af576550ec61d35668485954e49da29d168 (patch) treed967a7eeb9749af496605f6436e35a0e6efacaa0 /drivers parent52e01b84a244473074fc0612c169e2e043d58b01 (diff)
ixgbe: get rid of custom busy polling code
In linux-4.5, busy polling was implemented in core NAPI stack, meaning that all custom implementation can be removed from drivers. Not only we remove lot's of code, we also remove one lock operation in fast path, and allow GRO to do its job. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')