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comparison src/cs/services/tty/tty_api.c @ 0:4e78acac3d88

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src/{condat,cs,gpf,nucleus}: import from Selenite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 16 Oct 2020 06:23:26 +0000
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-1:000000000000 0:4e78acac3d88
1 /**
2 * @file tut_api.c
3 *
4 * API for TTY SWE.
5 *
6 * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com)
7 * @version 0.1
8 */
9
10 /*
11 * History:
12 *
13 * Date Modification
14 * ------------------------------------
15 * 01/27/2003 Create
16 *
17 * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved
18 */
19
20 #ifndef _WINDOWS
21 #include "config/l1sw.cfg"
22 #endif
23
24 #include "tty/tty_i.h"
25
26 #include "tty/tty_api.h"
27 #include "audio/audio_structs_i.h"
28 #include "audio/audio_const_i.h"
29
30 /* External declaration */
31 extern T_AUDIO_ENV_CTRL_BLK* p_audio_gbl_var;
32
33 /********************************************************************************/
34 /* */
35 /* Function Name: audio_tty_set_config */
36 /* */
37 /* Purpose: This function is called to configure TTY. Currently, only */
38 /* supports start and stop */
39 /* */
40 /* Input Parameters: */
41 /* TTY configuration */
42 /* Return path. */
43 /* */
44 /* Output Parameters: */
45 /* Validation of the parameters. */
46 /* */
47 /* Note: */
48 /* None. */
49 /* */
50 /* Revision History: */
51 /* None. */
52 /* */
53 /********************************************************************************/
54 T_AUDIO_RET audio_tty_set_config (T_AUDIO_TTY_CONFIG_PARAMETER *parameter, T_RV_RETURN *return_path)
55 {
56 #if (L1_GTT == 1)
57 /* Declare local variables. */
58 T_RVF_MB_STATUS mb_status = RVF_GREEN;
59 T_RV_HDR *p_msg = NULL;
60
61 /************************ audio_tty_set_config function begins ******************/
62 if (p_audio_gbl_var == NULL )
63 {
64 TTY_SEND_TRACE("TTY: Error Audio SWE not started ",RV_TRACE_LEVEL_ERROR);
65 return(AUDIO_ERROR);
66 }
67
68 /* If bad parameters, then report an error and abort.*/
69 if ( (parameter->Mode != TTY_STOP)&&
70 (parameter->Mode != TTY_EXT_START))
71 {
72 TTY_SEND_TRACE("TTY: Error bad parameters ",RV_TRACE_LEVEL_ERROR);
73 return (AUDIO_ERROR);
74 }
75
76 switch (parameter->Mode)
77 {
78 case TTY_EXT_START:
79 {
80 /* allocate the memory for the message to send */
81 mb_status = rvf_get_buf (p_audio_gbl_var->mb_external,
82 sizeof (T_TTY_START),
83 (T_RVF_BUFFER **) (&p_msg));
84 }
85 break;
86 case TTY_STOP:
87 {
88 /* allocate the memory for the message to send */
89 mb_status = rvf_get_buf (p_audio_gbl_var->mb_external,
90 sizeof (T_TTY_STOP),
91 (T_RVF_BUFFER **) (&p_msg));
92 }
93 break;
94 }
95
96 /* If insufficient resources, then report a memory error and abort. */
97 if (mb_status == RVF_YELLOW)
98 {
99 /* deallocate the memory */
100 rvf_free_buf((T_RVF_BUFFER *)p_msg);
101 TTY_SEND_TRACE("TTY: Not Enough Memory (Yellow!) ",RV_TRACE_LEVEL_ERROR);
102 return (AUDIO_ERROR);
103 }
104 else
105 if (mb_status == RVF_RED)
106 {
107 TTY_SEND_TRACE("TTY: Not Enough Memory (Red!) ",RV_TRACE_LEVEL_ERROR);
108 return (AUDIO_ERROR);
109 }
110
111 /* fill the message id + parameters */
112 switch (parameter->Mode)
113 {
114 case TTY_EXT_START:
115 p_msg->msg_id = TTY_START_REQ;
116
117 if (return_path->callback_func == NULL)
118 {
119 ((T_TTY_START *)p_msg)->return_path.addr_id = return_path->addr_id;
120 ((T_TTY_START *)p_msg)->return_path.callback_func = NULL;
121 }
122 else
123 {
124 ((T_TTY_START *)p_msg)->return_path.callback_func = return_path->callback_func;
125 }
126 break;
127 case TTY_STOP:
128 p_msg->msg_id = TTY_STOP_REQ;
129 break;
130 }
131
132 /* fill the address source id */
133 p_msg->src_addr_id = rvf_get_taskid();
134 p_msg->dest_addr_id = p_audio_gbl_var->addrId;
135
136 /* send the messsage to the audio entity */
137 rvf_send_msg (p_audio_gbl_var->addrId, p_msg);
138
139 return (AUDIO_OK);
140
141 #else // L1_GTT
142
143 TTY_SEND_TRACE("TTY API not available ", RV_TRACE_LEVEL_ERROR);
144 return (AUDIO_ERROR);
145
146 #endif
147 }