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1353aa53 MG |
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 | ||
29 | static 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: | |
9841f37a MG |
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; | |
1353aa53 MG |
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 | ||
126 | static void ehset_disconnect(struct usb_interface *intf) | |
127 | { | |
128 | } | |
129 | ||
130 | static 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 | }; | |
140 | MODULE_DEVICE_TABLE(usb, ehset_id_table); | |
141 | ||
142 | static 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 | ||
149 | module_usb_driver(ehset_driver); | |
150 | ||
151 | MODULE_DESCRIPTION("USB Driver for EHSET Test Fixture"); | |
152 | MODULE_LICENSE("GPL v2"); |