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https://github.com/Telecominfraproject/OpenCellular.git
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a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/*
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* uio_ehci_pci - UIO driver for PCI EHCI devices
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*
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* Copyright (C) 2013 Nico Huber <nico.h@gmx.de>
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*
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* This only implements MMIO access (no interrupts).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/uio_driver.h>
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#define DRIVER_VERSION "0.0.1"
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#define DRIVER_AUTHOR "Nico Huber <nico.h@gmx.de>"
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#define DRIVER_DESC "UIO driver for PCI EHCI devices"
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#define DRIVER_TAG "uio_ehci_pci"
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static int probe(struct pci_dev *const pci_dev,
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const struct pci_device_id *const did)
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{
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struct uio_info *info;
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int ret;
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ret = pci_enable_device(pci_dev);
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if (ret)
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goto return_;
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ret = pci_request_regions(pci_dev, DRIVER_TAG);
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if (ret)
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goto return_disable;
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info = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
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if (!info) {
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ret = -ENOMEM;
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goto return_release;
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}
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info->name = DRIVER_TAG;
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info->version = DRIVER_VERSION;
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info->mem[0].name = "EHCI MMIO area";
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info->mem[0].addr = pci_resource_start(pci_dev, 0);
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if (!info->mem[0].addr) {
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ret = -ENODEV;
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goto return_free;
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}
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info->mem[0].size = pci_resource_len(pci_dev, 0);
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info->mem[0].memtype = UIO_MEM_PHYS;
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ret = uio_register_device(&pci_dev->dev, info);
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if (ret)
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goto return_free;
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pci_set_drvdata(pci_dev, info);
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return 0;
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return_free:
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kfree(info);
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return_release:
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pci_release_regions(pci_dev);
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return_disable:
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pci_disable_device(pci_dev);
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return_:
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return ret;
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}
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static void remove(struct pci_dev *const pci_dev)
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{
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struct uio_info *const info = pci_get_drvdata(pci_dev);
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uio_unregister_device(info);
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kfree(info);
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pci_release_regions(pci_dev);
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pci_disable_device(pci_dev);
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}
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static DEFINE_PCI_DEVICE_TABLE(ehci_pci_ids) = {
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{ PCI_DEVICE(0x8086, 0x27cc) },
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{ 0, }
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};
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static struct pci_driver uio_ehci_pci_driver = {
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.name = DRIVER_TAG,
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.id_table = ehci_pci_ids,
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.probe = probe,
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.remove = remove,
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};
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module_pci_driver(uio_ehci_pci_driver);
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MODULE_VERSION(DRIVER_VERSION);
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MODULE_LICENSE("GPL v2");
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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