1/*
 2 * Intel(R) Trace Hub pci driver
 3 *
 4 * Copyright (C) 2014-2015 Intel Corporation.
 5 *
 6 * This program is free software; you can redistribute it and/or modify it
 7 * under the terms and conditions of the GNU General Public License,
 8 * version 2, as published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 */
15
16#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
17
18#include <linux/types.h>
19#include <linux/module.h>
20#include <linux/device.h>
21#include <linux/sysfs.h>
22#include <linux/pci.h>
23
24#include "intel_th.h"
25
26#define DRIVER_NAME "intel_th_pci"
27
28#define BAR_MASK (BIT(TH_MMIO_CONFIG) | BIT(TH_MMIO_SW))
29
30static int intel_th_pci_probe(struct pci_dev *pdev,
31			      const struct pci_device_id *id)
32{
33	struct intel_th *th;
34	int err;
35
36	err = pcim_enable_device(pdev);
37	if (err)
38		return err;
39
40	err = pcim_iomap_regions_request_all(pdev, BAR_MASK, DRIVER_NAME);
41	if (err)
42		return err;
43
44	th = intel_th_alloc(&pdev->dev, pdev->resource,
45			    DEVICE_COUNT_RESOURCE, pdev->irq);
46	if (IS_ERR(th))
47		return PTR_ERR(th);
48
49	return 0;
50}
51
52static void intel_th_pci_remove(struct pci_dev *pdev)
53{
54	struct intel_th *th = pci_get_drvdata(pdev);
55
56	intel_th_free(th);
57}
58
59static const struct pci_device_id intel_th_pci_id_table[] = {
60	{
61		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26),
62		.driver_data = (kernel_ulong_t)0,
63	},
64	{
65		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126),
66		.driver_data = (kernel_ulong_t)0,
67	},
68	{
69		/* Apollo Lake */
70		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x5a8e),
71		.driver_data = (kernel_ulong_t)0,
72	},
73	{
74		/* Broxton */
75		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0a80),
76		.driver_data = (kernel_ulong_t)0,
77	},
78	{ 0 },
79};
80
81MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table);
82
83static struct pci_driver intel_th_pci_driver = {
84	.name		= DRIVER_NAME,
85	.id_table	= intel_th_pci_id_table,
86	.probe		= intel_th_pci_probe,
87	.remove		= intel_th_pci_remove,
88};
89
90module_pci_driver(intel_th_pci_driver);
91
92MODULE_LICENSE("GPL v2");
93MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver");
94MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>");