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gerrit-public.fairphone.software / kernel / msm-4.19 / efa86858e1d8970411a140fa1e0c4dd18a8f2a89 / . / drivers / usb / misc / ehset.c
blob: c31b4a33e6bb0a61e5d9253dc6a2679cbb6b94ef [file] [log] [blame]
Manu Gautam1353aa52013-07-02 20:13:51 -0700[diff] [blame]1/*
2 * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 and
6 * only version 2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#include <linux/kernel.h>
15#include <linux/errno.h>
16#include <linux/module.h>
17#include <linux/slab.h>
18#include <linux/usb.h>
19#include <linux/usb/ch11.h>
20
21#define TEST_SE0_NAK_PID 0x0101
22#define TEST_J_PID 0x0102
23#define TEST_K_PID 0x0103
24#define TEST_PACKET_PID 0x0104
25#define TEST_HS_HOST_PORT_SUSPEND_RESUME 0x0106
26#define TEST_SINGLE_STEP_GET_DEV_DESC 0x0107
27#define TEST_SINGLE_STEP_SET_FEATURE 0x0108
28
29static int ehset_probe(struct usb_interface *intf,
30 const struct usb_device_id *id)
31{
32 int ret = -EINVAL;
33 struct usb_device *dev = interface_to_usbdev(intf);
34 struct usb_device *hub_udev = dev->parent;
35 struct usb_device_descriptor *buf;
36 u8 portnum = dev->portnum;
37 u16 test_pid = le16_to_cpu(dev->descriptor.idProduct);
38
39 switch (test_pid) {
40 case TEST_SE0_NAK_PID:
41 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
42 USB_REQ_SET_FEATURE, USB_RT_PORT,
43 USB_PORT_FEAT_TEST,
44 (TEST_SE0_NAK << 8) | portnum,
45 NULL, 0, 1000);
46 break;
47 case TEST_J_PID:
48 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
49 USB_REQ_SET_FEATURE, USB_RT_PORT,
50 USB_PORT_FEAT_TEST,
51 (TEST_J << 8) | portnum,
52 NULL, 0, 1000);
53 break;
54 case TEST_K_PID:
55 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
56 USB_REQ_SET_FEATURE, USB_RT_PORT,
57 USB_PORT_FEAT_TEST,
58 (TEST_K << 8) | portnum,
59 NULL, 0, 1000);
60 break;
61 case TEST_PACKET_PID:
62 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
63 USB_REQ_SET_FEATURE, USB_RT_PORT,
64 USB_PORT_FEAT_TEST,
65 (TEST_PACKET << 8) | portnum,
66 NULL, 0, 1000);
67 break;
68 case TEST_HS_HOST_PORT_SUSPEND_RESUME:
69 /* Test: wait for 15secs -> suspend -> 15secs delay -> resume */
70 msleep(15 * 1000);
71 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
72 USB_REQ_SET_FEATURE, USB_RT_PORT,
73 USB_PORT_FEAT_SUSPEND, portnum,
74 NULL, 0, 1000);
75 if (ret < 0)
76 break;
77
78 msleep(15 * 1000);
79 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
80 USB_REQ_CLEAR_FEATURE, USB_RT_PORT,
81 USB_PORT_FEAT_SUSPEND, portnum,
82 NULL, 0, 1000);
83 break;
84 case TEST_SINGLE_STEP_GET_DEV_DESC:
85 /* Test: wait for 15secs -> GetDescriptor request */
86 msleep(15 * 1000);
87 buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL);
88 if (!buf)
89 return -ENOMEM;
90
91 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
92 USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
93 USB_DT_DEVICE << 8, 0,
94 buf, USB_DT_DEVICE_SIZE,
95 USB_CTRL_GET_TIMEOUT);
96 kfree(buf);
97 break;
98 case TEST_SINGLE_STEP_SET_FEATURE:
Manu Gautam9841f372013-08-08 16:49:24 -0700[diff] [blame]99 /*
100 * GetDescriptor SETUP request -> 15secs delay -> IN & STATUS
101 *
102 * Note, this test is only supported on root hubs since the
103 * SetPortFeature handling can only be done inside the HCD's
104 * hub_control callback function.
105 */
106 if (hub_udev != dev->bus->root_hub) {
107 dev_err(&intf->dev, "SINGLE_STEP_SET_FEATURE test only supported on root hub\n");
108 break;
109 }
110
111 ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
112 USB_REQ_SET_FEATURE, USB_RT_PORT,
113 USB_PORT_FEAT_TEST,
114 (6 << 8) | portnum,
115 NULL, 0, 60 * 1000);
116
117 break;
Manu Gautam1353aa52013-07-02 20:13:51 -0700[diff] [blame]118 default:
119 dev_err(&intf->dev, "%s: unsupported PID: 0x%x\n",
120 __func__, test_pid);
121 }
122
123 return (ret < 0) ? ret : 0;
124}
125
126static void ehset_disconnect(struct usb_interface *intf)
127{
128}
129
130static const struct usb_device_id ehset_id_table[] = {
131 { USB_DEVICE(0x1a0a, TEST_SE0_NAK_PID) },
132 { USB_DEVICE(0x1a0a, TEST_J_PID) },
133 { USB_DEVICE(0x1a0a, TEST_K_PID) },
134 { USB_DEVICE(0x1a0a, TEST_PACKET_PID) },
135 { USB_DEVICE(0x1a0a, TEST_HS_HOST_PORT_SUSPEND_RESUME) },
136 { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_GET_DEV_DESC) },
137 { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_SET_FEATURE) },
138 { } /* Terminating entry */
139};
140MODULE_DEVICE_TABLE(usb, ehset_id_table);
141
142static struct usb_driver ehset_driver = {
143 .name = "usb_ehset_test",
144 .probe = ehset_probe,
145 .disconnect = ehset_disconnect,
146 .id_table = ehset_id_table,
147};
148
149module_usb_driver(ehset_driver);
150
151MODULE_DESCRIPTION("USB Driver for EHSET Test Fixture");
152MODULE_LICENSE("GPL v2");