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 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 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
= 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");