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yaml --- r: 354299 b: refs/heads/master c: 33782dd h: refs/heads/master i: 354297: 9994aeb 354295: 104248e v: v3
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H Hartley Sweeten
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Greg Kroah-Hartman
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Jan 31, 2013
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: abac8b54a353b9a1ac7d09ff790812655f618896 | ||
| refs/heads/master: 33782dd5edf8db3cdb7c81a3523bf743dd0209b7 |
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| /* | ||
| * comedi_pci.c | ||
| * Comedi PCI driver specific functions. | ||
| * | ||
| * COMEDI - Linux Control and Measurement Device Interface | ||
| * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #include <linux/pci.h> | ||
|
|
||
| #include "comedidev.h" | ||
|
|
||
| /** | ||
| * comedi_to_pci_dev() - comedi_device pointer to pci_dev pointer. | ||
| * @dev: comedi_device struct | ||
| */ | ||
| struct pci_dev *comedi_to_pci_dev(struct comedi_device *dev) | ||
| { | ||
| return dev->hw_dev ? to_pci_dev(dev->hw_dev) : NULL; | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_to_pci_dev); | ||
|
|
||
| /** | ||
| * comedi_pci_enable() - Enable the PCI device and request the regions. | ||
| * @pcidev: pci_dev struct | ||
| * @res_name: name for the requested reqource | ||
| */ | ||
| int comedi_pci_enable(struct pci_dev *pcidev, const char *res_name) | ||
| { | ||
| int rc; | ||
|
|
||
| rc = pci_enable_device(pcidev); | ||
| if (rc < 0) | ||
| return rc; | ||
|
|
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| rc = pci_request_regions(pcidev, res_name); | ||
| if (rc < 0) | ||
| pci_disable_device(pcidev); | ||
|
|
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| return rc; | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_enable); | ||
|
|
||
| /** | ||
| * comedi_pci_disable() - Release the regions and disable the PCI device. | ||
| * @pcidev: pci_dev struct | ||
| * | ||
| * This must be matched with a previous successful call to comedi_pci_enable(). | ||
| */ | ||
| void comedi_pci_disable(struct pci_dev *pcidev) | ||
| { | ||
| pci_release_regions(pcidev); | ||
| pci_disable_device(pcidev); | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_disable); | ||
|
|
||
| /** | ||
| * comedi_pci_auto_config() - Configure/probe a comedi PCI driver. | ||
| * @pcidev: pci_dev struct | ||
| * @driver: comedi_driver struct | ||
| * | ||
| * Typically called from the pci_driver (*probe) function. | ||
| */ | ||
| int comedi_pci_auto_config(struct pci_dev *pcidev, | ||
| struct comedi_driver *driver) | ||
| { | ||
| return comedi_auto_config(&pcidev->dev, driver, 0); | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_auto_config); | ||
|
|
||
| /** | ||
| * comedi_pci_auto_unconfig() - Unconfigure/remove a comedi PCI driver. | ||
| * @pcidev: pci_dev struct | ||
| * | ||
| * Typically called from the pci_driver (*remove) function. | ||
| */ | ||
| void comedi_pci_auto_unconfig(struct pci_dev *pcidev) | ||
| { | ||
| comedi_auto_unconfig(&pcidev->dev); | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_auto_unconfig); | ||
|
|
||
| /** | ||
| * comedi_pci_driver_register() - Register a comedi PCI driver. | ||
| * @comedi_driver: comedi_driver struct | ||
| * @pci_driver: pci_driver struct | ||
| * | ||
| * This function is used for the module_init() of comedi PCI drivers. | ||
| * Do not call it directly, use the module_comedi_pci_driver() helper | ||
| * macro instead. | ||
| */ | ||
| int comedi_pci_driver_register(struct comedi_driver *comedi_driver, | ||
| struct pci_driver *pci_driver) | ||
| { | ||
| int ret; | ||
|
|
||
| ret = comedi_driver_register(comedi_driver); | ||
| if (ret < 0) | ||
| return ret; | ||
|
|
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| ret = pci_register_driver(pci_driver); | ||
| if (ret < 0) { | ||
| comedi_driver_unregister(comedi_driver); | ||
| return ret; | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_driver_register); | ||
|
|
||
| /** | ||
| * comedi_pci_driver_unregister() - Unregister a comedi PCI driver. | ||
| * @comedi_driver: comedi_driver struct | ||
| * @pci_driver: pci_driver struct | ||
| * | ||
| * This function is used for the module_exit() of comedi PCI drivers. | ||
| * Do not call it directly, use the module_comedi_pci_driver() helper | ||
| * macro instead. | ||
| */ | ||
| void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver, | ||
| struct pci_driver *pci_driver) | ||
| { | ||
| pci_unregister_driver(pci_driver); | ||
| comedi_driver_unregister(comedi_driver); | ||
| } | ||
| EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister); |
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