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 /**   Host 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_hcd_sim_host.h"
30 
31 #if !defined(UX_HOST_STANDALONE)
32 #include "tx_timer.h"
33 
34 
35 /**************************************************************************/
36 /*                                                                        */
37 /*  FUNCTION                                               RELEASE        */
38 /*                                                                        */
39 /*    _ux_hcd_sim_host_timer_function                     PORTABLE C      */
40 /*                                                           6.1.10       */
41 /*  AUTHOR                                                                */
42 /*                                                                        */
43 /*    Chaoqiong Xiao, Microsoft Corporation                               */
44 /*                                                                        */
45 /*  DESCRIPTION                                                           */
46 /*                                                                        */
47 /*     This function is the timer function of the simulator. It is        */
48 /*     invoked on a timer every tick.                                     */
49 /*                                                                        */
50 /*     It's for RTOS mode.                                                */
51 /*                                                                        */
52 /*  INPUT                                                                 */
53 /*                                                                        */
54 /*    hcd_sim_host_addr                     Address of host controller    */
55 /*                                                                        */
56 /*  OUTPUT                                                                */
57 /*                                                                        */
58 /*    None                                                                */
59 /*                                                                        */
60 /*  CALLS                                                                 */
61 /*                                                                        */
62 /*    _ux_utility_semaphore_put             Put semaphore                 */
63 /*                                                                        */
64 /*  CALLED BY                                                             */
65 /*                                                                        */
66 /*    ThreadX                                                             */
67 /*                                                                        */
68 /*  RELEASE HISTORY                                                       */
69 /*                                                                        */
70 /*    DATE              NAME                      DESCRIPTION             */
71 /*                                                                        */
72 /*  05-19-2020     Chaoqiong Xiao           Initial Version 6.0           */
73 /*  09-30-2020     Chaoqiong Xiao           Modified comment(s),          */
74 /*                                            resulting in version 6.1    */
75 /*  01-31-2022     Chaoqiong Xiao           Modified comment(s),          */
76 /*                                            used macros to configure    */
77 /*                                            for RTOS mode compile,      */
78 /*                                            resulting in version 6.1.10 */
79 /*                                                                        */
80 /**************************************************************************/
_ux_hcd_sim_host_timer_function(ULONG hcd_sim_host_addr)81 VOID  _ux_hcd_sim_host_timer_function(ULONG hcd_sim_host_addr)
82 {
83 
84 UX_HCD_SIM_HOST     *hcd_sim_host;
85 UX_HCD              *hcd;
86 
87 
88     /* Setup pointer to simulator host structure.  */
89     UX_TIMER_EXTENSION_PTR_GET(hcd_sim_host, UX_HCD_SIM_HOST, hcd_sim_host_addr)
90 
91     /* Get the pointers to the generic HCD areas.  */
92     hcd =  hcd_sim_host -> ux_hcd_sim_host_hcd_owner;
93 
94     /* Increase the interrupt count. This indicates the controller is still alive.  */
95     hcd_sim_host -> ux_hcd_sim_host_interrupt_count++;
96 
97     /* Check if the controller is operational, if not, skip it.  */
98     if (hcd -> ux_hcd_status == UX_HCD_STATUS_OPERATIONAL)
99     {
100 
101         /* Wake up the thread for the controller transaction processing.  */
102         hcd -> ux_hcd_thread_signal++;
103         _ux_host_semaphore_put(&_ux_system_host -> ux_system_host_hcd_semaphore);
104     }
105 }
106 #endif
107