1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. 4 */ 5 6 #include <linux/kernel.h> 7 #include <linux/errno.h> 8 #include <linux/module.h> 9 #include <linux/slab.h> 10 #include <linux/usb.h> 11 #include <linux/usb/ch11.h> 12 13 #define TEST_SE0_NAK_PID 0x0101 14 #define TEST_J_PID 0x0102 15 #define TEST_K_PID 0x0103 16 #define TEST_PACKET_PID 0x0104 17 #define TEST_HS_HOST_PORT_SUSPEND_RESUME 0x0106 18 #define TEST_SINGLE_STEP_GET_DEV_DESC 0x0107 19 #define TEST_SINGLE_STEP_SET_FEATURE 0x0108 20 21 static int ehset_probe(struct usb_interface *intf, 22 const struct usb_device_id *id) 23 { 24 int ret = -EINVAL; 25 struct usb_device *dev = interface_to_usbdev(intf); 26 struct usb_device *hub_udev = dev->parent; 27 struct usb_device_descriptor buf; 28 u8 portnum = dev->portnum; 29 u16 test_pid = le16_to_cpu(dev->descriptor.idProduct); 30 31 switch (test_pid) { 32 case TEST_SE0_NAK_PID: 33 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 34 USB_RT_PORT, USB_PORT_FEAT_TEST, 35 (USB_TEST_SE0_NAK << 8) | portnum, 36 NULL, 0, 1000, GFP_KERNEL); 37 break; 38 case TEST_J_PID: 39 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 40 USB_RT_PORT, USB_PORT_FEAT_TEST, 41 (USB_TEST_J << 8) | portnum, NULL, 0, 42 1000, GFP_KERNEL); 43 break; 44 case TEST_K_PID: 45 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 46 USB_RT_PORT, USB_PORT_FEAT_TEST, 47 (USB_TEST_K << 8) | portnum, NULL, 0, 48 1000, GFP_KERNEL); 49 break; 50 case TEST_PACKET_PID: 51 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 52 USB_RT_PORT, USB_PORT_FEAT_TEST, 53 (USB_TEST_PACKET << 8) | portnum, 54 NULL, 0, 1000, GFP_KERNEL); 55 break; 56 case TEST_HS_HOST_PORT_SUSPEND_RESUME: 57 /* Test: wait for 15secs -> suspend -> 15secs delay -> resume */ 58 msleep(15 * 1000); 59 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 60 USB_RT_PORT, USB_PORT_FEAT_SUSPEND, 61 portnum, NULL, 0, 1000, GFP_KERNEL); 62 if (ret < 0) 63 break; 64 65 msleep(15 * 1000); 66 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_CLEAR_FEATURE, 67 USB_RT_PORT, USB_PORT_FEAT_SUSPEND, 68 portnum, NULL, 0, 1000, GFP_KERNEL); 69 break; 70 case TEST_SINGLE_STEP_GET_DEV_DESC: 71 /* Test: wait for 15secs -> GetDescriptor request */ 72 msleep(15 * 1000); 73 74 ret = usb_control_msg_recv(dev, 0, USB_REQ_GET_DESCRIPTOR, 75 USB_DIR_IN, USB_DT_DEVICE << 8, 0, 76 &buf, USB_DT_DEVICE_SIZE, 77 USB_CTRL_GET_TIMEOUT, GFP_KERNEL); 78 break; 79 case TEST_SINGLE_STEP_SET_FEATURE: 80 /* 81 * GetDescriptor SETUP request -> 15secs delay -> IN & STATUS 82 * 83 * Note, this test is only supported on root hubs since the 84 * SetPortFeature handling can only be done inside the HCD's 85 * hub_control callback function. 86 */ 87 if (hub_udev != dev->bus->root_hub) { 88 dev_err(&intf->dev, "SINGLE_STEP_SET_FEATURE test only supported on root hub\n"); 89 break; 90 } 91 92 ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE, 93 USB_RT_PORT, USB_PORT_FEAT_TEST, 94 (6 << 8) | portnum, NULL, 0, 95 60 * 1000, GFP_KERNEL); 96 97 break; 98 default: 99 dev_err(&intf->dev, "%s: unsupported PID: 0x%x\n", 100 __func__, test_pid); 101 } 102 103 return ret; 104 } 105 106 static void ehset_disconnect(struct usb_interface *intf) 107 { 108 } 109 110 static const struct usb_device_id ehset_id_table[] = { 111 { USB_DEVICE(0x1a0a, TEST_SE0_NAK_PID) }, 112 { USB_DEVICE(0x1a0a, TEST_J_PID) }, 113 { USB_DEVICE(0x1a0a, TEST_K_PID) }, 114 { USB_DEVICE(0x1a0a, TEST_PACKET_PID) }, 115 { USB_DEVICE(0x1a0a, TEST_HS_HOST_PORT_SUSPEND_RESUME) }, 116 { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_GET_DEV_DESC) }, 117 { USB_DEVICE(0x1a0a, TEST_SINGLE_STEP_SET_FEATURE) }, 118 { } /* Terminating entry */ 119 }; 120 MODULE_DEVICE_TABLE(usb, ehset_id_table); 121 122 static struct usb_driver ehset_driver = { 123 .name = "usb_ehset_test", 124 .probe = ehset_probe, 125 .disconnect = ehset_disconnect, 126 .id_table = ehset_id_table, 127 }; 128 129 module_usb_driver(ehset_driver); 130 131 MODULE_DESCRIPTION("USB Driver for EHSET Test Fixture"); 132 MODULE_LICENSE("GPL v2"); 133