Commit | Line | Data |
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409a15da | 1 | /* |
8e22978c | 2 | * ci_hdrc_pci.c - MIPS USB IP core family device controller |
409a15da PK |
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 */ | |
8e22978c | 21 | #define UDC_DRIVER_NAME "ci_hdrc_pci" |
409a15da PK |
22 | |
23 | /****************************************************************************** | |
24 | * PCI block | |
25 | *****************************************************************************/ | |
8e22978c | 26 | static struct ci_hdrc_platform_data pci_platdata = { |
62bb84ed AS |
27 | .name = UDC_DRIVER_NAME, |
28 | .capoffset = DEF_CAPOFFSET, | |
29 | }; | |
409a15da | 30 | |
8e22978c | 31 | static struct ci_hdrc_platform_data langwell_pci_platdata = { |
f01ef574 | 32 | .name = UDC_DRIVER_NAME, |
62bb84ed | 33 | .capoffset = 0, |
f01ef574 PK |
34 | }; |
35 | ||
8e22978c | 36 | static struct ci_hdrc_platform_data penwell_pci_platdata = { |
bd841986 AS |
37 | .name = UDC_DRIVER_NAME, |
38 | .capoffset = 0, | |
39 | .power_budget = 200, | |
40 | }; | |
41 | ||
409a15da | 42 | /** |
8e22978c | 43 | * ci_hdrc_pci_probe: PCI probe |
409a15da PK |
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 | */ | |
8e22978c | 51 | static int ci_hdrc_pci_probe(struct pci_dev *pdev, |
409a15da PK |
52 | const struct pci_device_id *id) |
53 | { | |
8e22978c | 54 | struct ci_hdrc_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 | ||
8b2379b4 | 64 | retval = pcim_enable_device(pdev); |
409a15da | 65 | if (retval) |
8b2379b4 | 66 | return retval; |
409a15da PK |
67 | |
68 | if (!pdev->irq) { | |
69 | dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!"); | |
8b2379b4 | 70 | return -ENODEV; |
409a15da PK |
71 | } |
72 | ||
409a15da PK |
73 | pci_set_master(pdev); |
74 | pci_try_set_mwi(pdev); | |
75 | ||
62bb84ed AS |
76 | memset(res, 0, sizeof(res)); |
77 | res[0].start = pci_resource_start(pdev, 0); | |
78 | res[0].end = pci_resource_end(pdev, 0); | |
79 | res[0].flags = IORESOURCE_MEM; | |
80 | res[1].start = pdev->irq; | |
81 | res[1].flags = IORESOURCE_IRQ; | |
82 | ||
8e22978c | 83 | plat_ci = ci_hdrc_add_device(&pdev->dev, res, nres, platdata); |
cbc6dc2a | 84 | if (IS_ERR(plat_ci)) { |
8e22978c | 85 | dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n"); |
8b2379b4 | 86 | return PTR_ERR(plat_ci); |
62bb84ed AS |
87 | } |
88 | ||
62bb84ed AS |
89 | pci_set_drvdata(pdev, plat_ci); |
90 | ||
409a15da | 91 | return 0; |
409a15da PK |
92 | } |
93 | ||
94 | /** | |
8e22978c | 95 | * ci_hdrc_pci_remove: PCI remove |
409a15da PK |
96 | * @pdev: USB Device Controller being removed |
97 | * | |
8e22978c | 98 | * Reverses the effect of ci_hdrc_pci_probe(), |
409a15da PK |
99 | * first invoking the udc_remove() and then releases |
100 | * all PCI resources allocated for this USB device controller | |
101 | */ | |
8e22978c | 102 | static void ci_hdrc_pci_remove(struct pci_dev *pdev) |
409a15da | 103 | { |
62bb84ed AS |
104 | struct platform_device *plat_ci = pci_get_drvdata(pdev); |
105 | ||
8e22978c | 106 | ci_hdrc_remove_device(plat_ci); |
409a15da PK |
107 | } |
108 | ||
109 | /** | |
110 | * PCI device table | |
111 | * PCI device structure | |
112 | * | |
113 | * Check "pci.h" for details | |
114 | */ | |
8e22978c | 115 | static DEFINE_PCI_DEVICE_TABLE(ci_hdrc_pci_id_table) = { |
62bb84ed AS |
116 | { |
117 | PCI_DEVICE(0x153F, 0x1004), | |
77c4400f | 118 | .driver_data = (kernel_ulong_t)&pci_platdata, |
62bb84ed AS |
119 | }, |
120 | { | |
121 | PCI_DEVICE(0x153F, 0x1006), | |
77c4400f | 122 | .driver_data = (kernel_ulong_t)&pci_platdata, |
62bb84ed AS |
123 | }, |
124 | { | |
125 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811), | |
77c4400f | 126 | .driver_data = (kernel_ulong_t)&langwell_pci_platdata, |
62bb84ed AS |
127 | }, |
128 | { | |
129 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829), | |
77c4400f | 130 | .driver_data = (kernel_ulong_t)&penwell_pci_platdata, |
62bb84ed | 131 | }, |
a214339d DC |
132 | { |
133 | /* Intel Clovertrail */ | |
134 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe006), | |
135 | .driver_data = (kernel_ulong_t)&penwell_pci_platdata, | |
136 | }, | |
137 | { 0 } /* end: all zeroes */ | |
409a15da | 138 | }; |
8e22978c | 139 | MODULE_DEVICE_TABLE(pci, ci_hdrc_pci_id_table); |
409a15da | 140 | |
8e22978c | 141 | static struct pci_driver ci_hdrc_pci_driver = { |
409a15da | 142 | .name = UDC_DRIVER_NAME, |
8e22978c AS |
143 | .id_table = ci_hdrc_pci_id_table, |
144 | .probe = ci_hdrc_pci_probe, | |
145 | .remove = ci_hdrc_pci_remove, | |
409a15da PK |
146 | }; |
147 | ||
8e22978c | 148 | module_pci_driver(ci_hdrc_pci_driver); |
409a15da PK |
149 | |
150 | MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>"); | |
151 | MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller"); | |
152 | MODULE_LICENSE("GPL"); | |
153 | MODULE_VERSION("June 2008"); | |
8e22978c | 154 | MODULE_ALIAS("platform:ci13xxx_pci"); |