2 * ci13xxx_pci.c - MIPS USB IP core family device controller
4 * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/platform_device.h>
14 #include <linux/module.h>
15 #include <linux/pci.h>
16 #include <linux/interrupt.h>
17 #include <linux/usb/gadget.h>
18 #include <linux/usb/chipidea.h>
21 #define UDC_DRIVER_NAME "ci13xxx_pci"
23 /******************************************************************************
25 *****************************************************************************/
26 static struct ci13xxx_platform_data pci_platdata = {
27 .name = UDC_DRIVER_NAME,
28 .capoffset = DEF_CAPOFFSET,
31 static struct ci13xxx_platform_data langwell_pci_platdata = {
32 .name = UDC_DRIVER_NAME,
36 static struct ci13xxx_platform_data penwell_pci_platdata = {
37 .name = UDC_DRIVER_NAME,
43 * ci13xxx_pci_probe: PCI probe
44 * @pdev: USB device controller being probed
45 * @id: PCI hotplug ID connecting controller to UDC framework
47 * This function returns an error code
48 * Allocates basic PCI resources for this USB device controller, and then
49 * invokes the udc_probe() method to start the UDC associated with it
51 static int ci13xxx_pci_probe(struct pci_dev *pdev,
52 const struct pci_device_id *id)
54 struct ci13xxx_platform_data *platdata = (void *)id->driver_data;
55 struct platform_device *plat_ci;
56 struct resource res[3];
57 int retval = 0, nres = 2;
60 dev_err(&pdev->dev, "device doesn't provide driver data\n");
64 retval = pci_enable_device(pdev);
69 dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
75 pci_try_set_mwi(pdev);
77 memset(res, 0, sizeof(res));
78 res[0].start = pci_resource_start(pdev, 0);
79 res[0].end = pci_resource_end(pdev, 0);
80 res[0].flags = IORESOURCE_MEM;
81 res[1].start = pdev->irq;
82 res[1].flags = IORESOURCE_IRQ;
84 plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
85 if (IS_ERR(plat_ci)) {
86 dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
87 retval = PTR_ERR(plat_ci);
91 pci_set_drvdata(pdev, plat_ci);
96 pci_disable_device(pdev);
102 * ci13xxx_pci_remove: PCI remove
103 * @pdev: USB Device Controller being removed
105 * Reverses the effect of ci13xxx_pci_probe(),
106 * first invoking the udc_remove() and then releases
107 * all PCI resources allocated for this USB device controller
109 static void ci13xxx_pci_remove(struct pci_dev *pdev)
111 struct platform_device *plat_ci = pci_get_drvdata(pdev);
113 ci13xxx_remove_device(plat_ci);
114 pci_disable_device(pdev);
119 * PCI device structure
121 * Check "pci.h" for details
123 static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
125 PCI_DEVICE(0x153F, 0x1004),
126 .driver_data = (kernel_ulong_t)&pci_platdata,
129 PCI_DEVICE(0x153F, 0x1006),
130 .driver_data = (kernel_ulong_t)&pci_platdata,
133 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
134 .driver_data = (kernel_ulong_t)&langwell_pci_platdata,
137 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
138 .driver_data = (kernel_ulong_t)&penwell_pci_platdata,
140 { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
142 MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
144 static struct pci_driver ci13xxx_pci_driver = {
145 .name = UDC_DRIVER_NAME,
146 .id_table = ci13xxx_pci_id_table,
147 .probe = ci13xxx_pci_probe,
148 .remove = ci13xxx_pci_remove,
151 module_pci_driver(ci13xxx_pci_driver);
153 MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
154 MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
155 MODULE_LICENSE("GPL");
156 MODULE_VERSION("June 2008");