1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** USBX Component */
17 /** */
18 /** Slave Simulator Controller Driver */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 #define UX_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "ux_api.h"
29 #include "ux_dcd_sim_slave.h"
30 #include "ux_hcd_sim_host.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _ux_dcd_sim_slave_state_change PORTABLE C */
38 /* 6.1.10 */
39 /* AUTHOR */
40 /* */
41 /* Chaoqiong Xiao, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function will set the state of the controller to the desired */
46 /* value. */
47 /* */
48 /* INPUT */
49 /* */
50 /* dcd_sim_slave Pointer to device controller */
51 /* state Desired state */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* Completion Status */
56 /* */
57 /* CALLS */
58 /* */
59 /* None */
60 /* */
61 /* CALLED BY */
62 /* */
63 /* Slave Simulator Controller Driver */
64 /* */
65 /* RELEASE HISTORY */
66 /* */
67 /* DATE NAME DESCRIPTION */
68 /* */
69 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
70 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
71 /* resulting in version 6.1 */
72 /* 04-02-2021 Chaoqiong Xiao Modified comment(s), */
73 /* simulate force disconnect, */
74 /* resulting in version 6.1.6 */
75 /* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
76 /* added standalone support, */
77 /* resulting in version 6.1.10 */
78 /* */
79 /**************************************************************************/
_ux_dcd_sim_slave_state_change(UX_DCD_SIM_SLAVE * dcd_sim_slave,ULONG state)80 UINT _ux_dcd_sim_slave_state_change(UX_DCD_SIM_SLAVE *dcd_sim_slave, ULONG state)
81 {
82
83 UX_HCD *hcd;
84
85
86 UX_PARAMETER_NOT_USED(state);
87
88 if (state == UX_DEVICE_FORCE_DISCONNECT)
89 {
90
91 /* Simulate port detach & attach on host side. */
92
93 /* Get HCD. */
94 hcd = (UX_HCD *)dcd_sim_slave -> ux_dcd_sim_slave_hcd;
95
96 /* Something happened on this port. Signal it to the root hub thread. */
97 if (hcd)
98 {
99 hcd -> ux_hcd_root_hub_signal[0] = 2;
100 _ux_host_semaphore_put(&_ux_system_host -> ux_system_host_enum_semaphore);
101 }
102 }
103
104 /* Nothing to do in simulation mode. */
105 return(UX_SUCCESS);
106 }
107
108
