Commit | Line | Data |
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409a15da PK |
1 | /* |
2 | * ci13xxx_pci.c - MIPS USB IP core family device controller | |
3 | * | |
4 | * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved. | |
5 | * | |
6 | * Author: David Lopo | |
7 | * | |
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. | |
11 | */ | |
12 | ||
62bb84ed | 13 | #include <linux/platform_device.h> |
409a15da PK |
14 | #include <linux/module.h> |
15 | #include <linux/pci.h> | |
62bb84ed AS |
16 | #include <linux/interrupt.h> |
17 | #include <linux/usb/gadget.h> | |
e443b333 | 18 | #include <linux/usb/chipidea.h> |
409a15da PK |
19 | |
20 | /* driver name */ | |
21 | #define UDC_DRIVER_NAME "ci13xxx_pci" | |
22 | ||
23 | /****************************************************************************** | |
24 | * PCI block | |
25 | *****************************************************************************/ | |
efccca4f | 26 | static struct ci13xxx_platform_data pci_platdata = { |
62bb84ed AS |
27 | .name = UDC_DRIVER_NAME, |
28 | .capoffset = DEF_CAPOFFSET, | |
29 | }; | |
409a15da | 30 | |
efccca4f | 31 | static struct ci13xxx_platform_data langwell_pci_platdata = { |
f01ef574 | 32 | .name = UDC_DRIVER_NAME, |
62bb84ed | 33 | .capoffset = 0, |
f01ef574 PK |
34 | }; |
35 | ||
efccca4f | 36 | static struct ci13xxx_platform_data penwell_pci_platdata = { |
bd841986 AS |
37 | .name = UDC_DRIVER_NAME, |
38 | .capoffset = 0, | |
39 | .power_budget = 200, | |
40 | }; | |
41 | ||
409a15da PK |
42 | /** |
43 | * ci13xxx_pci_probe: PCI probe | |
44 | * @pdev: USB device controller being probed | |
45 | * @id: PCI hotplug ID connecting controller to UDC framework | |
46 | * | |
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 | |
50 | */ | |
41ac7b3a | 51 | static int ci13xxx_pci_probe(struct pci_dev *pdev, |
409a15da PK |
52 | const struct pci_device_id *id) |
53 | { | |
77c4400f | 54 | struct ci13xxx_platform_data *platdata = (void *)id->driver_data; |
62bb84ed AS |
55 | struct platform_device *plat_ci; |
56 | struct resource res[3]; | |
57 | int retval = 0, nres = 2; | |
409a15da | 58 | |
77c4400f | 59 | if (!platdata) { |
1989b5ce AS |
60 | dev_err(&pdev->dev, "device doesn't provide driver data\n"); |
61 | return -ENODEV; | |
62 | } | |
63 | ||
409a15da PK |
64 | retval = pci_enable_device(pdev); |
65 | if (retval) | |
66 | goto done; | |
67 | ||
68 | if (!pdev->irq) { | |
69 | dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!"); | |
70 | retval = -ENODEV; | |
71 | goto disable_device; | |
72 | } | |
73 | ||
62bb84ed | 74 | pci_set_power_state(pdev, PCI_D0); |
409a15da PK |
75 | pci_set_master(pdev); |
76 | pci_try_set_mwi(pdev); | |
77 | ||
62bb84ed AS |
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; | |
84 | ||
cbc6dc2a RZ |
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); | |
89 | goto disable_device; | |
62bb84ed AS |
90 | } |
91 | ||
62bb84ed AS |
92 | pci_set_drvdata(pdev, plat_ci); |
93 | ||
409a15da PK |
94 | return 0; |
95 | ||
409a15da PK |
96 | disable_device: |
97 | pci_disable_device(pdev); | |
98 | done: | |
99 | return retval; | |
100 | } | |
101 | ||
102 | /** | |
103 | * ci13xxx_pci_remove: PCI remove | |
104 | * @pdev: USB Device Controller being removed | |
105 | * | |
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 | |
109 | */ | |
fb4e98ab | 110 | static void ci13xxx_pci_remove(struct pci_dev *pdev) |
409a15da | 111 | { |
62bb84ed AS |
112 | struct platform_device *plat_ci = pci_get_drvdata(pdev); |
113 | ||
cbc6dc2a | 114 | ci13xxx_remove_device(plat_ci); |
62bb84ed | 115 | pci_set_drvdata(pdev, NULL); |
409a15da PK |
116 | pci_disable_device(pdev); |
117 | } | |
118 | ||
119 | /** | |
120 | * PCI device table | |
121 | * PCI device structure | |
122 | * | |
123 | * Check "pci.h" for details | |
124 | */ | |
125 | static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = { | |
62bb84ed AS |
126 | { |
127 | PCI_DEVICE(0x153F, 0x1004), | |
77c4400f | 128 | .driver_data = (kernel_ulong_t)&pci_platdata, |
62bb84ed AS |
129 | }, |
130 | { | |
131 | PCI_DEVICE(0x153F, 0x1006), | |
77c4400f | 132 | .driver_data = (kernel_ulong_t)&pci_platdata, |
62bb84ed AS |
133 | }, |
134 | { | |
135 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811), | |
77c4400f | 136 | .driver_data = (kernel_ulong_t)&langwell_pci_platdata, |
62bb84ed AS |
137 | }, |
138 | { | |
139 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829), | |
77c4400f | 140 | .driver_data = (kernel_ulong_t)&penwell_pci_platdata, |
62bb84ed | 141 | }, |
409a15da PK |
142 | { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ } |
143 | }; | |
144 | MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table); | |
145 | ||
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, | |
7690417d | 150 | .remove = ci13xxx_pci_remove, |
409a15da PK |
151 | }; |
152 | ||
3cdb7721 | 153 | module_pci_driver(ci13xxx_pci_driver); |
409a15da PK |
154 | |
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"); |