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1/*
2 * pci.c - DesignWare HS OTG Controller PCI driver
3 *
4 * Copyright (C) 2004-2013 Synopsys, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The names of the above-listed copyright holders may not be used
16 * to endorse or promote products derived from this software without
17 * specific prior written permission.
18 *
19 * ALTERNATIVELY, this software may be distributed under the terms of the
20 * GNU General Public License ("GPL") as published by the Free Software
21 * Foundation; either version 2 of the License, or (at your option) any
22 * later version.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
28 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37/*
38 * Provides the initialization and cleanup entry points for the DWC_otg PCI
39 * driver
40 */
41#include <linux/kernel.h>
42#include <linux/module.h>
43#include <linux/moduleparam.h>
44#include <linux/spinlock.h>
45#include <linux/interrupt.h>
46#include <linux/io.h>
47#include <linux/slab.h>
48#include <linux/pci.h>
49#include <linux/usb.h>
50
51#include <linux/usb/hcd.h>
52#include <linux/usb/ch11.h>
53#include <linux/platform_device.h>
54#include <linux/usb/usb_phy_generic.h>
55
56#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
57
58static const char dwc2_driver_name[] = "dwc2-pci";
59
60struct dwc2_pci_glue {
61 struct platform_device *dwc2;
62 struct platform_device *phy;
63};
64
65static int dwc2_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc2)
66{
67 if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
68 pdev->device == PCI_PRODUCT_ID_HAPS_HSOTG) {
69 struct property_entry properties[] = {
70 { },
71 };
72
73 return platform_device_add_properties(dwc2, properties);
74 }
75
76 return 0;
77}
78
79static void dwc2_pci_remove(struct pci_dev *pci)
80{
81 struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
82
83 platform_device_unregister(glue->dwc2);
84 usb_phy_generic_unregister(glue->phy);
85 kfree(glue);
86 pci_set_drvdata(pci, NULL);
87}
88
89static int dwc2_pci_probe(struct pci_dev *pci,
90 const struct pci_device_id *id)
91{
92 struct resource res[2];
93 struct platform_device *dwc2;
94 struct platform_device *phy;
95 int ret;
96 struct device *dev = &pci->dev;
97 struct dwc2_pci_glue *glue;
98
99 ret = pcim_enable_device(pci);
100 if (ret) {
101 dev_err(dev, "failed to enable pci device\n");
102 return -ENODEV;
103 }
104
105 pci_set_master(pci);
106
107 dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
108 if (!dwc2) {
109 dev_err(dev, "couldn't allocate dwc2 device\n");
110 return -ENOMEM;
111 }
112
113 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
114
115 res[0].start = pci_resource_start(pci, 0);
116 res[0].end = pci_resource_end(pci, 0);
117 res[0].name = "dwc2";
118 res[0].flags = IORESOURCE_MEM;
119
120 res[1].start = pci->irq;
121 res[1].name = "dwc2";
122 res[1].flags = IORESOURCE_IRQ;
123
124 ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
125 if (ret) {
126 dev_err(dev, "couldn't add resources to dwc2 device\n");
127 return ret;
128 }
129
130 dwc2->dev.parent = dev;
131
132 phy = usb_phy_generic_register();
133 if (IS_ERR(phy)) {
134 dev_err(dev, "error registering generic PHY (%ld)\n",
135 PTR_ERR(phy));
136 return PTR_ERR(phy);
137 }
138
139 ret = dwc2_pci_quirks(pci, dwc2);
140 if (ret)
141 goto err;
142
143 ret = platform_device_add(dwc2);
144 if (ret) {
145 dev_err(dev, "failed to register dwc2 device\n");
146 goto err;
147 }
148
149 glue = kzalloc(sizeof(*glue), GFP_KERNEL);
150 if (!glue)
151 return -ENOMEM;
152
153 glue->phy = phy;
154 glue->dwc2 = dwc2;
155 pci_set_drvdata(pci, glue);
156
157 return 0;
158err:
159 usb_phy_generic_unregister(phy);
160 platform_device_put(dwc2);
161 return ret;
162}
163
164static const struct pci_device_id dwc2_pci_ids[] = {
165 {
166 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
167 },
168 {
169 PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
170 PCI_DEVICE_ID_STMICRO_USB_OTG),
171 },
172 { /* end: all zeroes */ }
173};
174MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
175
176static struct pci_driver dwc2_pci_driver = {
177 .name = dwc2_driver_name,
178 .id_table = dwc2_pci_ids,
179 .probe = dwc2_pci_probe,
180 .remove = dwc2_pci_remove,
181};
182
183module_pci_driver(dwc2_pci_driver);
184
185MODULE_DESCRIPTION("DESIGNWARE HS OTG PCI Bus Glue");
186MODULE_AUTHOR("Synopsys, Inc.");
187MODULE_LICENSE("Dual BSD/GPL");
1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2/*
3 * pci.c - DesignWare HS OTG Controller PCI driver
4 *
5 * Copyright (C) 2004-2013 Synopsys, Inc.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The names of the above-listed copyright holders may not be used
17 * to endorse or promote products derived from this software without
18 * specific prior written permission.
19 *
20 * ALTERNATIVELY, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") as published by the Free Software
22 * Foundation; either version 2 of the License, or (at your option) any
23 * later version.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
26 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
27 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
29 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 */
37
38/*
39 * Provides the initialization and cleanup entry points for the DWC_otg PCI
40 * driver
41 */
42#include <linux/kernel.h>
43#include <linux/module.h>
44#include <linux/moduleparam.h>
45#include <linux/spinlock.h>
46#include <linux/interrupt.h>
47#include <linux/io.h>
48#include <linux/slab.h>
49#include <linux/pci.h>
50#include <linux/usb.h>
51
52#include <linux/usb/hcd.h>
53#include <linux/usb/ch11.h>
54#include <linux/platform_device.h>
55#include <linux/usb/usb_phy_generic.h>
56
57#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
58
59static const char dwc2_driver_name[] = "dwc2-pci";
60
61struct dwc2_pci_glue {
62 struct platform_device *dwc2;
63 struct platform_device *phy;
64};
65
66static int dwc2_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc2)
67{
68 if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
69 pdev->device == PCI_PRODUCT_ID_HAPS_HSOTG) {
70 struct property_entry properties[] = {
71 { },
72 };
73
74 return platform_device_add_properties(dwc2, properties);
75 }
76
77 return 0;
78}
79
80/**
81 * dwc2_pci_probe() - Provides the cleanup entry points for the DWC_otg PCI
82 * driver
83 *
84 * @pci: The programming view of DWC_otg PCI
85 */
86static void dwc2_pci_remove(struct pci_dev *pci)
87{
88 struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
89
90 platform_device_unregister(glue->dwc2);
91 usb_phy_generic_unregister(glue->phy);
92 pci_set_drvdata(pci, NULL);
93}
94
95static int dwc2_pci_probe(struct pci_dev *pci,
96 const struct pci_device_id *id)
97{
98 struct resource res[2];
99 struct platform_device *dwc2;
100 struct platform_device *phy;
101 int ret;
102 struct device *dev = &pci->dev;
103 struct dwc2_pci_glue *glue;
104
105 ret = pcim_enable_device(pci);
106 if (ret) {
107 dev_err(dev, "failed to enable pci device\n");
108 return -ENODEV;
109 }
110
111 pci_set_master(pci);
112
113 phy = usb_phy_generic_register();
114 if (IS_ERR(phy)) {
115 dev_err(dev, "error registering generic PHY (%ld)\n",
116 PTR_ERR(phy));
117 return PTR_ERR(phy);
118 }
119
120 dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
121 if (!dwc2) {
122 dev_err(dev, "couldn't allocate dwc2 device\n");
123 ret = -ENOMEM;
124 goto err;
125 }
126
127 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
128
129 res[0].start = pci_resource_start(pci, 0);
130 res[0].end = pci_resource_end(pci, 0);
131 res[0].name = "dwc2";
132 res[0].flags = IORESOURCE_MEM;
133
134 res[1].start = pci->irq;
135 res[1].name = "dwc2";
136 res[1].flags = IORESOURCE_IRQ;
137
138 ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
139 if (ret) {
140 dev_err(dev, "couldn't add resources to dwc2 device\n");
141 goto err;
142 }
143
144 dwc2->dev.parent = dev;
145
146 ret = dwc2_pci_quirks(pci, dwc2);
147 if (ret)
148 goto err;
149
150 glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
151 if (!glue) {
152 ret = -ENOMEM;
153 goto err;
154 }
155
156 ret = platform_device_add(dwc2);
157 if (ret) {
158 dev_err(dev, "failed to register dwc2 device\n");
159 goto err;
160 }
161
162 glue->phy = phy;
163 glue->dwc2 = dwc2;
164 pci_set_drvdata(pci, glue);
165
166 return 0;
167err:
168 usb_phy_generic_unregister(phy);
169 platform_device_put(dwc2);
170 return ret;
171}
172
173static const struct pci_device_id dwc2_pci_ids[] = {
174 {
175 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
176 },
177 {
178 PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
179 PCI_DEVICE_ID_STMICRO_USB_OTG),
180 },
181 { /* end: all zeroes */ }
182};
183MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
184
185static struct pci_driver dwc2_pci_driver = {
186 .name = dwc2_driver_name,
187 .id_table = dwc2_pci_ids,
188 .probe = dwc2_pci_probe,
189 .remove = dwc2_pci_remove,
190};
191
192module_pci_driver(dwc2_pci_driver);
193
194MODULE_DESCRIPTION("DESIGNWARE HS OTG PCI Bus Glue");
195MODULE_AUTHOR("Synopsys, Inc.");
196MODULE_LICENSE("Dual BSD/GPL");