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72246da4 FB |
1 | /** |
2 | * dwc3-pci.c - PCI Specific glue layer | |
3 | * | |
4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
72246da4 FB |
5 | * |
6 | * Authors: Felipe Balbi <balbi@ti.com>, | |
7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions, and the following disclaimer, | |
14 | * without modification. | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in the | |
17 | * documentation and/or other materials provided with the distribution. | |
18 | * 3. The names of the above-listed copyright holders may not be used | |
19 | * to endorse or promote products derived from this software without | |
20 | * specific prior written permission. | |
21 | * | |
22 | * ALTERNATIVELY, this software may be distributed under the terms of the | |
23 | * GNU General Public License ("GPL") version 2, as published by the Free | |
24 | * Software Foundation. | |
25 | * | |
26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
28 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
30 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
37 | */ | |
38 | ||
39 | #include <linux/kernel.h> | |
46a57283 | 40 | #include <linux/module.h> |
72246da4 FB |
41 | #include <linux/slab.h> |
42 | #include <linux/pci.h> | |
43 | #include <linux/platform_device.h> | |
44 | ||
e3ec3eb7 FB |
45 | #include <linux/usb/otg.h> |
46 | #include <linux/usb/nop-usb-xceiv.h> | |
47 | ||
8300dd23 FB |
48 | #include "core.h" |
49 | ||
72246da4 FB |
50 | /* FIXME define these in <linux/pci_ids.h> */ |
51 | #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 | |
52 | #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd | |
53 | ||
72246da4 FB |
54 | struct dwc3_pci { |
55 | struct device *dev; | |
56 | struct platform_device *dwc3; | |
e3ec3eb7 FB |
57 | struct platform_device *usb2_phy; |
58 | struct platform_device *usb3_phy; | |
72246da4 FB |
59 | }; |
60 | ||
e3ec3eb7 FB |
61 | static int __devinit dwc3_pci_register_phys(struct dwc3_pci *glue) |
62 | { | |
63 | struct nop_usb_xceiv_platform_data pdata; | |
64 | struct platform_device *pdev; | |
65 | int ret; | |
66 | ||
67 | memset(&pdata, 0x00, sizeof(pdata)); | |
68 | ||
69 | pdev = platform_device_alloc("nop_usb_xceiv", 0); | |
70 | if (!pdev) | |
71 | return -ENOMEM; | |
72 | ||
73 | glue->usb2_phy = pdev; | |
74 | pdata.type = USB_PHY_TYPE_USB2; | |
75 | ||
76 | ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata)); | |
77 | if (ret) | |
78 | goto err1; | |
79 | ||
80 | pdev = platform_device_alloc("nop_usb_xceiv", 1); | |
81 | if (!pdev) { | |
82 | ret = -ENOMEM; | |
83 | goto err1; | |
84 | } | |
85 | ||
86 | glue->usb3_phy = pdev; | |
87 | pdata.type = USB_PHY_TYPE_USB3; | |
88 | ||
89 | ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata)); | |
90 | if (ret) | |
91 | goto err2; | |
92 | ||
93 | ret = platform_device_add(glue->usb2_phy); | |
94 | if (ret) | |
95 | goto err2; | |
96 | ||
97 | ret = platform_device_add(glue->usb3_phy); | |
98 | if (ret) | |
99 | goto err3; | |
100 | ||
101 | return 0; | |
102 | ||
103 | err3: | |
104 | platform_device_del(glue->usb2_phy); | |
105 | ||
106 | err2: | |
107 | platform_device_put(glue->usb3_phy); | |
108 | ||
109 | err1: | |
110 | platform_device_put(glue->usb2_phy); | |
111 | ||
112 | return ret; | |
113 | } | |
114 | ||
72246da4 FB |
115 | static int __devinit dwc3_pci_probe(struct pci_dev *pci, |
116 | const struct pci_device_id *id) | |
117 | { | |
118 | struct resource res[2]; | |
119 | struct platform_device *dwc3; | |
120 | struct dwc3_pci *glue; | |
121 | int ret = -ENOMEM; | |
802ca850 | 122 | struct device *dev = &pci->dev; |
72246da4 | 123 | |
802ca850 | 124 | glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); |
72246da4 | 125 | if (!glue) { |
802ca850 CP |
126 | dev_err(dev, "not enough memory\n"); |
127 | return -ENOMEM; | |
72246da4 FB |
128 | } |
129 | ||
1d046793 | 130 | glue->dev = dev; |
72246da4 FB |
131 | |
132 | ret = pci_enable_device(pci); | |
133 | if (ret) { | |
802ca850 CP |
134 | dev_err(dev, "failed to enable pci device\n"); |
135 | return -ENODEV; | |
72246da4 FB |
136 | } |
137 | ||
138 | pci_set_power_state(pci, PCI_D0); | |
139 | pci_set_master(pci); | |
140 | ||
e3ec3eb7 FB |
141 | ret = dwc3_pci_register_phys(glue); |
142 | if (ret) { | |
143 | dev_err(dev, "couldn't register PHYs\n"); | |
144 | return ret; | |
145 | } | |
146 | ||
124dafde | 147 | dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); |
72246da4 | 148 | if (!dwc3) { |
802ca850 | 149 | dev_err(dev, "couldn't allocate dwc3 device\n"); |
28f1a0d9 | 150 | ret = -ENOMEM; |
802ca850 | 151 | goto err1; |
72246da4 FB |
152 | } |
153 | ||
154 | memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); | |
155 | ||
156 | res[0].start = pci_resource_start(pci, 0); | |
157 | res[0].end = pci_resource_end(pci, 0); | |
158 | res[0].name = "dwc_usb3"; | |
159 | res[0].flags = IORESOURCE_MEM; | |
160 | ||
161 | res[1].start = pci->irq; | |
162 | res[1].name = "dwc_usb3"; | |
163 | res[1].flags = IORESOURCE_IRQ; | |
164 | ||
165 | ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); | |
166 | if (ret) { | |
802ca850 | 167 | dev_err(dev, "couldn't add resources to dwc3 device\n"); |
124dafde | 168 | goto err1; |
72246da4 FB |
169 | } |
170 | ||
171 | pci_set_drvdata(pci, glue); | |
172 | ||
802ca850 | 173 | dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); |
72246da4 | 174 | |
802ca850 CP |
175 | dwc3->dev.dma_mask = dev->dma_mask; |
176 | dwc3->dev.dma_parms = dev->dma_parms; | |
177 | dwc3->dev.parent = dev; | |
1d046793 | 178 | glue->dwc3 = dwc3; |
72246da4 FB |
179 | |
180 | ret = platform_device_add(dwc3); | |
181 | if (ret) { | |
802ca850 CP |
182 | dev_err(dev, "failed to register dwc3 device\n"); |
183 | goto err3; | |
72246da4 FB |
184 | } |
185 | ||
186 | return 0; | |
187 | ||
802ca850 | 188 | err3: |
72246da4 FB |
189 | pci_set_drvdata(pci, NULL); |
190 | platform_device_put(dwc3); | |
72246da4 | 191 | err1: |
802ca850 | 192 | pci_disable_device(pci); |
72246da4 | 193 | |
72246da4 FB |
194 | return ret; |
195 | } | |
196 | ||
197 | static void __devexit dwc3_pci_remove(struct pci_dev *pci) | |
198 | { | |
199 | struct dwc3_pci *glue = pci_get_drvdata(pci); | |
200 | ||
e3ec3eb7 FB |
201 | platform_device_unregister(glue->usb2_phy); |
202 | platform_device_unregister(glue->usb3_phy); | |
72246da4 FB |
203 | platform_device_unregister(glue->dwc3); |
204 | pci_set_drvdata(pci, NULL); | |
205 | pci_disable_device(pci); | |
72246da4 FB |
206 | } |
207 | ||
208 | static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { | |
209 | { | |
210 | PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, | |
211 | PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), | |
212 | }, | |
213 | { } /* Terminating Entry */ | |
214 | }; | |
215 | MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); | |
216 | ||
217 | static struct pci_driver dwc3_pci_driver = { | |
0949e99b | 218 | .name = "dwc3-pci", |
72246da4 FB |
219 | .id_table = dwc3_pci_id_table, |
220 | .probe = dwc3_pci_probe, | |
221 | .remove = __devexit_p(dwc3_pci_remove), | |
222 | }; | |
223 | ||
224 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
225 | MODULE_LICENSE("Dual BSD/GPL"); | |
226 | MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); | |
227 | ||
95656336 | 228 | module_pci_driver(dwc3_pci_driver); |