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>
19 #include "ci13xxx_udc.h"
22 #define UDC_DRIVER_NAME "ci13xxx_pci"
24 /******************************************************************************
26 *****************************************************************************/
27 struct ci13xxx_udc_driver pci_driver = {
28 .name = UDC_DRIVER_NAME,
29 .capoffset = DEF_CAPOFFSET,
32 struct ci13xxx_udc_driver langwell_pci_driver = {
33 .name = UDC_DRIVER_NAME,
38 * ci13xxx_pci_probe: PCI probe
39 * @pdev: USB device controller being probed
40 * @id: PCI hotplug ID connecting controller to UDC framework
42 * This function returns an error code
43 * Allocates basic PCI resources for this USB device controller, and then
44 * invokes the udc_probe() method to start the UDC associated with it
46 static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
47 const struct pci_device_id *id)
49 struct ci13xxx_udc_driver *driver = (void *)id->driver_data;
50 struct platform_device *plat_ci;
51 struct resource res[3];
52 int retval = 0, nres = 2;
55 dev_err(&pdev->dev, "device doesn't provide driver data\n");
59 retval = pci_enable_device(pdev);
64 dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
69 pci_set_power_state(pdev, PCI_D0);
71 pci_try_set_mwi(pdev);
73 plat_ci = platform_device_alloc("ci_udc", -1);
75 dev_err(&pdev->dev, "can't allocate ci_udc platform device\n");
80 memset(res, 0, sizeof(res));
81 res[0].start = pci_resource_start(pdev, 0);
82 res[0].end = pci_resource_end(pdev, 0);
83 res[0].flags = IORESOURCE_MEM;
84 res[1].start = pdev->irq;
85 res[1].flags = IORESOURCE_IRQ;
87 retval = platform_device_add_resources(plat_ci, res, nres);
89 dev_err(&pdev->dev, "can't add resources to platform device\n");
93 retval = platform_device_add_data(plat_ci, driver, sizeof(*driver));
97 dma_set_coherent_mask(&plat_ci->dev, pdev->dev.coherent_dma_mask);
98 plat_ci->dev.dma_mask = pdev->dev.dma_mask;
99 plat_ci->dev.dma_parms = pdev->dev.dma_parms;
100 plat_ci->dev.parent = &pdev->dev;
102 pci_set_drvdata(pdev, plat_ci);
104 retval = platform_device_add(plat_ci);
111 pci_set_drvdata(pdev, NULL);
112 platform_device_put(plat_ci);
114 pci_disable_device(pdev);
120 * ci13xxx_pci_remove: PCI remove
121 * @pdev: USB Device Controller being removed
123 * Reverses the effect of ci13xxx_pci_probe(),
124 * first invoking the udc_remove() and then releases
125 * all PCI resources allocated for this USB device controller
127 static void __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
129 struct platform_device *plat_ci = pci_get_drvdata(pdev);
131 platform_device_unregister(plat_ci);
132 pci_set_drvdata(pdev, NULL);
133 pci_disable_device(pdev);
138 * PCI device structure
140 * Check "pci.h" for details
142 static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
144 PCI_DEVICE(0x153F, 0x1004),
145 .driver_data = (kernel_ulong_t)&pci_driver,
148 PCI_DEVICE(0x153F, 0x1006),
149 .driver_data = (kernel_ulong_t)&pci_driver,
152 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
153 .driver_data = (kernel_ulong_t)&langwell_pci_driver,
156 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
157 .driver_data = (kernel_ulong_t)&langwell_pci_driver,
159 { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
161 MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
163 static struct pci_driver ci13xxx_pci_driver = {
164 .name = UDC_DRIVER_NAME,
165 .id_table = ci13xxx_pci_id_table,
166 .probe = ci13xxx_pci_probe,
167 .remove = __devexit_p(ci13xxx_pci_remove),
170 module_pci_driver(ci13xxx_pci_driver);
172 MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
173 MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
174 MODULE_LICENSE("GPL");
175 MODULE_VERSION("June 2008");