4 * Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de)
5 * Author: Johannes Thumshirn <johannes.thumshirn@men.de>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; version 2 of the License.
12 #include <linux/module.h>
13 #include <linux/pci.h>
14 #include <linux/mcb.h>
16 #include "mcb-internal.h"
23 static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
31 priv = devm_kzalloc(&pdev->dev, sizeof(struct priv), GFP_KERNEL);
35 ret = pci_enable_device(pdev);
37 dev_err(&pdev->dev, "Failed to enable PCI device\n");
41 mapbase = pci_resource_start(pdev, 0);
43 dev_err(&pdev->dev, "No PCI resource\n");
47 ret = pci_request_region(pdev, 0, KBUILD_MODNAME);
49 dev_err(&pdev->dev, "Failed to request PCI BARs\n");
53 priv->base = pci_iomap(pdev, 0, 0);
55 dev_err(&pdev->dev, "Cannot ioremap\n");
60 flags = pci_resource_flags(pdev, 0);
61 if (flags & IORESOURCE_IO) {
64 "IO mapped PCI devices are not supported\n");
68 pci_set_drvdata(pdev, priv);
70 priv->bus = mcb_alloc_bus();
72 ret = chameleon_parse_cells(priv->bus, mapbase, priv->base);
77 dev_dbg(&pdev->dev, "Found %d cells\n", num_cells);
79 mcb_bus_add_devices(priv->bus);
82 pci_iounmap(pdev, priv->base);
84 pci_release_region(pdev, 0);
86 pci_disable_device(pdev);
90 static void mcb_pci_remove(struct pci_dev *pdev)
92 struct priv *priv = pci_get_drvdata(pdev);
94 mcb_release_bus(priv->bus);
97 static const struct pci_device_id mcb_pci_tbl[] = {
98 { PCI_DEVICE(PCI_VENDOR_ID_MEN, PCI_DEVICE_ID_MEN_CHAMELEON) },
101 MODULE_DEVICE_TABLE(pci, mcb_pci_tbl);
103 static struct pci_driver mcb_pci_driver = {
105 .id_table = mcb_pci_tbl,
106 .probe = mcb_pci_probe,
107 .remove = mcb_pci_remove,
110 module_pci_driver(mcb_pci_driver);
112 MODULE_AUTHOR("Johannes Thumshirn <johannes.thumshirn@men.de>");
113 MODULE_LICENSE("GPL");
114 MODULE_DESCRIPTION("MCB over PCI support");