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 struct ci13xxx_platform_data pci_platdata = {
27 .name = UDC_DRIVER_NAME,
28 .capoffset = DEF_CAPOFFSET,
31 struct ci13xxx_platform_data langwell_pci_platdata = {
32 .name = UDC_DRIVER_NAME,
36 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 __devinit 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!");
74 pci_set_power_state(pdev, PCI_D0);
76 pci_try_set_mwi(pdev);
78 memset(res, 0, sizeof(res));
79 res[0].start = pci_resource_start(pdev, 0);
80 res[0].end = pci_resource_end(pdev, 0);
81 res[0].flags = IORESOURCE_MEM;
82 res[1].start = pdev->irq;
83 res[1].flags = IORESOURCE_IRQ;
85 plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
86 if (IS_ERR(plat_ci)) {
87 dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
88 retval = PTR_ERR(plat_ci);
92 pci_set_drvdata(pdev, plat_ci);
97 pci_disable_device(pdev);
103 * ci13xxx_pci_remove: PCI remove
104 * @pdev: USB Device Controller being removed
106 * Reverses the effect of ci13xxx_pci_probe(),
107 * first invoking the udc_remove() and then releases
108 * all PCI resources allocated for this USB device controller
110 static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
112 struct platform_device *plat_ci = pci_get_drvdata(pdev);
114 ci13xxx_remove_device(plat_ci);
115 pci_set_drvdata(pdev, NULL);
116 pci_disable_device(pdev);
121 * PCI device structure
123 * Check "pci.h" for details
125 static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
127 PCI_DEVICE(0x153F, 0x1004),
128 .driver_data = (kernel_ulong_t)&pci_platdata,
131 PCI_DEVICE(0x153F, 0x1006),
132 .driver_data = (kernel_ulong_t)&pci_platdata,
135 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
136 .driver_data = (kernel_ulong_t)&langwell_pci_platdata,
139 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
140 .driver_data = (kernel_ulong_t)&penwell_pci_platdata,
142 { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
144 MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
146 static struct pci_driver ci13xxx_pci_driver = {
147 .name = UDC_DRIVER_NAME,
148 .id_table = ci13xxx_pci_id_table,
149 .probe = ci13xxx_pci_probe,
150 .remove = __devexit_p(ci13xxx_pci_remove),
153 module_pci_driver(ci13xxx_pci_driver);
155 MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
156 MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
157 MODULE_LICENSE("GPL");
158 MODULE_VERSION("June 2008");