1 /*---------------------------------------------------------------------------*
2 Project: TwlSDK - WXC - demos - relayStation-2
3 File: user.c
4
5 Copyright 2005-2009 Nintendo. All rights reserved.
6
7 These coded instructions, statements, and computer programs contain
8 proprietary information of Nintendo of America Inc. and/or Nintendo
9 Company Ltd., and are protected by Federal copyright law. They may
10 not be disclosed to third parties or copied or duplicated in any form,
11 in whole or in part, without the prior written consent of Nintendo.
12
13 $Date:: 2007-11-15#$
14 $Rev: 2414 $
15 $Author: hatamoto_minoru $
16 *---------------------------------------------------------------------------*/
17 #include <nitro.h>
18
19 #include <nitro/wxc.h>
20 #include "user.h"
21 #include "dispfunc.h"
22
23
24 /*****************************************************************************/
25 /* Variables */
26
27 /* If the relay station is in relay mode: TRUE */
28 BOOL station_is_relay;
29
30 /* Data buffer for exchange */
31 u8 send_data[DATA_SIZE];
32 static u8 recv_data[DATA_SIZE];
33
34 /* The original owner of the above send data */
35 u8 send_data_owner[6];
36
37 /* Number of successful exchanges */
38 static int data_exchange_count = 0;
39
40
41 /*****************************************************************************/
42 /* Functions */
43
44 /*---------------------------------------------------------------------------*
45 Name: CalcHash
46
47 Description: Hash calculation for a simple check.
48
49 Arguments: src: Calculation target buffer
50
51 Returns: The calculated value.
52 *---------------------------------------------------------------------------*/
CalcHash(const u8 * src)53 static u8 CalcHash(const u8 *src)
54 {
55 int i;
56 u8 sum = 0;
57 for (i = 0; i < DATA_SIZE - 1; i++)
58 {
59 sum ^= src[i];
60 }
61 return sum;
62 }
63
64 /*---------------------------------------------------------------------------*
65 Name: user_callback
66
67 Description: Data exchange complete callback.
68
69 Arguments: stat: Notification status (normally WXC_STATE_EXCHANGE_DONE)
70 arg: Notification argument (receive data buffer)
71
72 Returns: The calculated value.
73 *---------------------------------------------------------------------------*/
user_callback(WXCStateCode stat,void * arg)74 static void user_callback(WXCStateCode stat, void *arg)
75 {
76 #pragma unused(stat)
77
78 /* Receive data information is given to the argument */
79 const WXCBlockDataFormat *recv = (const WXCBlockDataFormat *)arg;
80
81 ++data_exchange_count;
82
83 /*
84 * If the relay station is in relay mode, data that should be sent is re-registered with data that was just received
85 *
86 */
87 if (station_is_relay)
88 {
89 /* Saves the MAC address of the receiving party */
90 const WXCUserInfo *info = WXC_GetUserInfo((u16)((WXC_GetOwnAid() == 0) ? 1 : 0));
91 MI_CpuCopy8(info->macAddress, send_data_owner, 6);
92 /* Re-registers exchange data */
93 MI_CpuCopy8(recv->buffer, send_data, sizeof(send_data));
94 MI_CpuClear32(recv->buffer, DATA_SIZE);
95 WXC_SetInitialData(GGID_ORG_1, send_data, DATA_SIZE, recv_data, DATA_SIZE);
96 }
97 }
98
99 /*---------------------------------------------------------------------------*
100 Name: system_callback
101
102 Description: WXC library system callback.
103
104 Arguments: stat: Notification status
105 arg: Notification argument (receive data buffer)
106
107 Returns: The calculated value.
108 *---------------------------------------------------------------------------*/
system_callback(WXCStateCode state,void * arg)109 static void system_callback(WXCStateCode state, void *arg)
110 {
111 switch (state)
112 {
113 case WXC_STATE_READY:
114 /*
115 * Issued from a WXC_Init function call.
116 * arg is always NULL.
117 */
118 break;
119
120 case WXC_STATE_ACTIVE:
121 /*
122 * Issued from a WXC_Start function call.
123 * arg is always NULL.
124 */
125 break;
126
127 case WXC_STATE_ENDING:
128 /*
129 * Issued from a WXC_End function call.
130 * arg is always NULL.
131 */
132 break;
133
134 case WXC_STATE_END:
135 /*
136 * Issued upon completion of the shutdown processing run by the WXC_End function.
137 * arg is internal work memory allocated by the WXC_Init function.
138 * At this point, work memory is deallocated by the user.
139 */
140 {
141 void *system_work = arg;
142 OS_Free(system_work);
143 }
144 break;
145
146 case WXC_STATE_EXCHANGE_DONE:
147 /*
148 * Data exchange complete (not currently issued)
149 */
150 break;
151 }
152 }
153
154 /*---------------------------------------------------------------------------*
155 Name: User_Init
156
157 Description: User-side initialization operation for WXC library.
158
159 Arguments: None.
160
161 Returns: None.
162 *---------------------------------------------------------------------------*/
User_Init(void)163 void User_Init(void)
164 {
165 /* Initializes the WXC library internal status */
166 WXC_Init(OS_Alloc(WXC_WORK_SIZE), system_callback, 2);
167
168 /* In relay station mode, it can only become a child device */
169 WXC_SetChildMode(TRUE);
170
171 /*
172 * Register the initial data block.
173 * The following is for cases other than when data is received in relay mode.
174 * Registered data is not updated.
175 */
176 OS_GetMacAddress(send_data_owner);
177 (void)OS_SPrintf((char *)send_data, "data %02X:%02X:%02X:%02X:%02X:%02X",
178 send_data_owner[0], send_data_owner[1], send_data_owner[2],
179 send_data_owner[3], send_data_owner[4], send_data_owner[5]);
180 send_data[DATA_SIZE - 1] = CalcHash(send_data);
181 WXC_RegisterCommonData(GGID_ORG_1, user_callback, send_data, DATA_SIZE, recv_data, DATA_SIZE);
182
183 /* WXC library wireless startup */
184 WXC_Start();
185 }
186