Suga koubou
mbed Phone Platform
Dependencies: ulaw mbed ConfigFile
IpLine.cpp@4:41a3534d085f, 2011-01-07 (annotated)
- Committer:
- okini3939
- Date:
- Fri Jan 07 18:20:41 2011 +0000
- Revision:
- 4:41a3534d085f
- Parent:
- 3:1d5dc4107558
- Child:
- 5:30e2847d241b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| okini3939 | 2:e37117117e79 | 1 | /** @file IpLine.cpp |
| okini3939 | 2:e37117117e79 | 2 | * @brief IP Line Controller (mbed Phone Platform) |
| okini3939 | 2:e37117117e79 | 3 | */ |
| okini3939 | 2:e37117117e79 | 4 | |
| okini3939 | 2:e37117117e79 | 5 | #include "IpLine.h" |
| okini3939 | 2:e37117117e79 | 6 | |
| okini3939 | 4:41a3534d085f | 7 | #define NET_RETRY (FREQ) |
| okini3939 | 4:41a3534d085f | 8 | #define NET_TIMEOUT (FREQ * 3) |
| okini3939 | 4:41a3534d085f | 9 | #define PACKET_IDENT 0x6465626d // "mbed" |
| okini3939 | 4:41a3534d085f | 10 | |
| okini3939 | 3:1d5dc4107558 | 11 | IpLine::IpLine (AnalogOut p_dac, AnalogIn p_adc) : dac(p_dac), adc(p_adc), dial(DIAL_SIZE), dabuf(DATA_SIZE * 4), adbuf(DATA_SIZE * 2) |
| okini3939 | 3:1d5dc4107558 | 12 | , led1(LED1), led2(LED2), led3(LED3), led4(LED4) { |
| okini3939 | 2:e37117117e79 | 13 | EthernetErr r; |
| okini3939 | 2:e37117117e79 | 14 | |
| okini3939 | 2:e37117117e79 | 15 | mode = ModeOff; |
| okini3939 | 3:1d5dc4107558 | 16 | status = StatusNone; |
| okini3939 | 2:e37117117e79 | 17 | timeout = 0; |
| okini3939 | 3:1d5dc4107558 | 18 | packet_num = 1; |
| okini3939 | 2:e37117117e79 | 19 | dataskip = 0; |
| okini3939 | 2:e37117117e79 | 20 | |
| okini3939 | 2:e37117117e79 | 21 | // dhcp |
| okini3939 | 2:e37117117e79 | 22 | eth = new EthernetNetIf; |
| okini3939 | 2:e37117117e79 | 23 | // eth = new EthernetNetIf(IpAddr(192,168,10,200), IpAddr(255,255,255,0), IpAddr(0,0,0,0), IpAddr(0,0,0,0)); |
| okini3939 | 2:e37117117e79 | 24 | r = eth->setup(); |
| okini3939 | 2:e37117117e79 | 25 | if (r) { |
| okini3939 | 2:e37117117e79 | 26 | printf("Error %d in setup.\n", r); |
| okini3939 | 2:e37117117e79 | 27 | return; |
| okini3939 | 2:e37117117e79 | 28 | } |
| okini3939 | 2:e37117117e79 | 29 | |
| okini3939 | 2:e37117117e79 | 30 | udpsock = new UDPSocket; |
| okini3939 | 2:e37117117e79 | 31 | udpsock->setOnEvent(this, &IpLine::onLisnerEvent); |
| okini3939 | 2:e37117117e79 | 32 | udpsock->bind(Host(eth->getIp(), UDPPORT)); |
| okini3939 | 2:e37117117e79 | 33 | } |
| okini3939 | 2:e37117117e79 | 34 | |
| okini3939 | 2:e37117117e79 | 35 | /// 8KHz interrupt |
| okini3939 | 2:e37117117e79 | 36 | void IpLine::intr () { |
| okini3939 | 2:e37117117e79 | 37 | char c; |
| okini3939 | 2:e37117117e79 | 38 | |
| okini3939 | 2:e37117117e79 | 39 | if (mode == ModeTalk && hook == HookOn) { |
| okini3939 | 2:e37117117e79 | 40 | // dac |
| okini3939 | 2:e37117117e79 | 41 | if (dabuf.available() < DATA_SIZE) { |
| okini3939 | 2:e37117117e79 | 42 | // down sample |
| okini3939 | 2:e37117117e79 | 43 | dabuf.get(c); |
| okini3939 | 2:e37117117e79 | 44 | dabuf.get(c); |
| okini3939 | 2:e37117117e79 | 45 | dac.write_u16(ulaw2pcm(c)); |
| okini3939 | 3:1d5dc4107558 | 46 | led1 = 0; led2 = 0; led3 = 1; |
| okini3939 | 2:e37117117e79 | 47 | } else |
| okini3939 | 2:e37117117e79 | 48 | if (dabuf.use() < DATA_SIZE) { |
| okini3939 | 2:e37117117e79 | 49 | // over sample |
| okini3939 | 2:e37117117e79 | 50 | if (dataskip) { |
| okini3939 | 2:e37117117e79 | 51 | dataskip = 0; |
| okini3939 | 2:e37117117e79 | 52 | } else { |
| okini3939 | 2:e37117117e79 | 53 | if (! dabuf.get(c)) { |
| okini3939 | 2:e37117117e79 | 54 | dac.write_u16(ulaw2pcm(c)); |
| okini3939 | 2:e37117117e79 | 55 | } else { |
| okini3939 | 4:41a3534d085f | 56 | dac.write_u16(gaussian()); |
| okini3939 | 2:e37117117e79 | 57 | } |
| okini3939 | 2:e37117117e79 | 58 | dataskip = 1; |
| okini3939 | 2:e37117117e79 | 59 | } |
| okini3939 | 4:41a3534d085f | 60 | led1 = 1; led2 = 0; led3 = 0; |
| okini3939 | 2:e37117117e79 | 61 | } else { |
| okini3939 | 2:e37117117e79 | 62 | // normal |
| okini3939 | 2:e37117117e79 | 63 | dabuf.get(c); |
| okini3939 | 2:e37117117e79 | 64 | dac.write_u16(ulaw2pcm(c)); |
| okini3939 | 3:1d5dc4107558 | 65 | led1 = 0; led2 = 1; led3 = 0; |
| okini3939 | 2:e37117117e79 | 66 | } |
| okini3939 | 2:e37117117e79 | 67 | |
| okini3939 | 2:e37117117e79 | 68 | // adc |
| okini3939 | 2:e37117117e79 | 69 | // adbuf.put(pcm2ulaw(adc.read_u16())); |
| okini3939 | 2:e37117117e79 | 70 | adbuf.put(adc.read_u16() >> 8); |
| okini3939 | 2:e37117117e79 | 71 | } |
| okini3939 | 2:e37117117e79 | 72 | |
| okini3939 | 2:e37117117e79 | 73 | if (timeout) { |
| okini3939 | 2:e37117117e79 | 74 | timeout --; |
| okini3939 | 2:e37117117e79 | 75 | |
| okini3939 | 2:e37117117e79 | 76 | if (timeout == 0) { |
| okini3939 | 2:e37117117e79 | 77 | if (last.target) { |
| okini3939 | 2:e37117117e79 | 78 | // re-try |
| okini3939 | 2:e37117117e79 | 79 | send(&last); |
| okini3939 | 2:e37117117e79 | 80 | timeout = NET_TIMEOUT; |
| okini3939 | 2:e37117117e79 | 81 | last.target = PhoneNone; |
| okini3939 | 2:e37117117e79 | 82 | } else { |
| okini3939 | 2:e37117117e79 | 83 | // timeout |
| okini3939 | 2:e37117117e79 | 84 | status = StatusNg; |
| okini3939 | 2:e37117117e79 | 85 | } |
| okini3939 | 2:e37117117e79 | 86 | } |
| okini3939 | 2:e37117117e79 | 87 | } |
| okini3939 | 2:e37117117e79 | 88 | } |
| okini3939 | 2:e37117117e79 | 89 | |
| okini3939 | 2:e37117117e79 | 90 | /// network |
| okini3939 | 2:e37117117e79 | 91 | void IpLine::poll () { |
| okini3939 | 2:e37117117e79 | 92 | |
| okini3939 | 2:e37117117e79 | 93 | Net::poll(); |
| okini3939 | 2:e37117117e79 | 94 | |
| okini3939 | 2:e37117117e79 | 95 | if (mode == ModeTalk && adbuf.use() >= DATA_SIZE) { |
| okini3939 | 2:e37117117e79 | 96 | // send |
| okini3939 | 2:e37117117e79 | 97 | struct ipline_packet packet; |
| okini3939 | 2:e37117117e79 | 98 | |
| okini3939 | 2:e37117117e79 | 99 | packet.len = adbuf.get(packet.data, DATA_SIZE); |
| okini3939 | 2:e37117117e79 | 100 | if (packet.len > 0) { |
| okini3939 | 2:e37117117e79 | 101 | packet.header.num = 0; |
| okini3939 | 2:e37117117e79 | 102 | packet.header.target = remotetarget; |
| okini3939 | 2:e37117117e79 | 103 | packet.header.mode = ModeData; |
| okini3939 | 2:e37117117e79 | 104 | packet.header.status = StatusNone; |
| okini3939 | 2:e37117117e79 | 105 | send(&packet); |
| okini3939 | 2:e37117117e79 | 106 | } |
| okini3939 | 2:e37117117e79 | 107 | } |
| okini3939 | 2:e37117117e79 | 108 | } |
| okini3939 | 2:e37117117e79 | 109 | |
| okini3939 | 2:e37117117e79 | 110 | /// recv packet |
| okini3939 | 2:e37117117e79 | 111 | void IpLine::onLisnerEvent (UDPSocketEvent e) { |
| okini3939 | 2:e37117117e79 | 112 | int len; |
| okini3939 | 2:e37117117e79 | 113 | struct ipline_packet packet; |
| okini3939 | 2:e37117117e79 | 114 | Host recv; |
| okini3939 | 2:e37117117e79 | 115 | |
| okini3939 | 2:e37117117e79 | 116 | if (e != UDPSOCKET_READABLE) return; |
| okini3939 | 2:e37117117e79 | 117 | |
| okini3939 | 2:e37117117e79 | 118 | // get data |
| okini3939 | 3:1d5dc4107558 | 119 | len = udpsock->recvfrom((char *)&packet, sizeof(struct ipline_packet), &recv); |
| okini3939 | 2:e37117117e79 | 120 | |
| okini3939 | 4:41a3534d085f | 121 | if (packet.header.ident != PACKET_IDENT) return; |
| okini3939 | 3:1d5dc4107558 | 122 | |
| okini3939 | 3:1d5dc4107558 | 123 | led4 = 1; |
| okini3939 | 2:e37117117e79 | 124 | if (packet.header.status != StatusNone) { |
| okini3939 | 2:e37117117e79 | 125 | // recv ack |
| okini3939 | 2:e37117117e79 | 126 | if (packet.header.num == last.num) { |
| okini3939 | 2:e37117117e79 | 127 | status = packet.header.status; |
| okini3939 | 2:e37117117e79 | 128 | timeout = 0; |
| okini3939 | 2:e37117117e79 | 129 | } |
| okini3939 | 2:e37117117e79 | 130 | |
| okini3939 | 2:e37117117e79 | 131 | } else |
| okini3939 | 2:e37117117e79 | 132 | if (packet.header.mode == ModeData && len > sizeof(struct ipline_header)) { |
| okini3939 | 2:e37117117e79 | 133 | // data |
| okini3939 | 2:e37117117e79 | 134 | |
| okini3939 | 2:e37117117e79 | 135 | dabuf.put(packet.data, packet.len); |
| okini3939 | 2:e37117117e79 | 136 | |
| okini3939 | 2:e37117117e79 | 137 | } else |
| okini3939 | 2:e37117117e79 | 138 | if (len == sizeof(struct ipline_header)) { |
| okini3939 | 2:e37117117e79 | 139 | // enter |
| okini3939 | 2:e37117117e79 | 140 | packet.header.status = StatusNg; |
| okini3939 | 2:e37117117e79 | 141 | |
| okini3939 | 2:e37117117e79 | 142 | switch (packet.header.mode) { |
| okini3939 | 2:e37117117e79 | 143 | case ModeRing: |
| okini3939 | 2:e37117117e79 | 144 | // ring --> onhook, dial |
| okini3939 | 2:e37117117e79 | 145 | if (mode == ModeReady) { |
| okini3939 | 2:e37117117e79 | 146 | dial.put(1); |
| okini3939 | 2:e37117117e79 | 147 | dial.put(10); |
| okini3939 | 2:e37117117e79 | 148 | dial.put(packet.header.target); |
| okini3939 | 2:e37117117e79 | 149 | dial.put(12); |
| okini3939 | 2:e37117117e79 | 150 | hook = HookOn; |
| okini3939 | 2:e37117117e79 | 151 | remote = recv; |
| okini3939 | 2:e37117117e79 | 152 | packet.header.status = StatusOk; |
| okini3939 | 2:e37117117e79 | 153 | } |
| okini3939 | 2:e37117117e79 | 154 | break; |
| okini3939 | 2:e37117117e79 | 155 | |
| okini3939 | 2:e37117117e79 | 156 | case ModeBT: |
| okini3939 | 2:e37117117e79 | 157 | case ModeDisconnect: |
| okini3939 | 2:e37117117e79 | 158 | if (recv.getIp() == remote.getIp()) { |
| okini3939 | 2:e37117117e79 | 159 | hook = HookOff; |
| okini3939 | 2:e37117117e79 | 160 | packet.header.status = StatusOk; |
| okini3939 | 2:e37117117e79 | 161 | } |
| okini3939 | 2:e37117117e79 | 162 | break; |
| okini3939 | 2:e37117117e79 | 163 | |
| okini3939 | 2:e37117117e79 | 164 | case ModeTalk: |
| okini3939 | 2:e37117117e79 | 165 | if (recv.getIp() == remote.getIp()) { |
| okini3939 | 3:1d5dc4107558 | 166 | adbuf.clear(); |
| okini3939 | 3:1d5dc4107558 | 167 | dabuf.clear(); |
| okini3939 | 2:e37117117e79 | 168 | hook = HookOn; |
| okini3939 | 2:e37117117e79 | 169 | packet.header.status = StatusOk; |
| okini3939 | 2:e37117117e79 | 170 | } |
| okini3939 | 2:e37117117e79 | 171 | break; |
| okini3939 | 2:e37117117e79 | 172 | } |
| okini3939 | 2:e37117117e79 | 173 | |
| okini3939 | 2:e37117117e79 | 174 | // send ack |
| okini3939 | 2:e37117117e79 | 175 | send(&packet.header); |
| okini3939 | 2:e37117117e79 | 176 | timeout = NET_RETRY; |
| okini3939 | 3:1d5dc4107558 | 177 | /* |
| okini3939 | 2:e37117117e79 | 178 | for (int i = 0; i < len; i ++) { |
| okini3939 | 2:e37117117e79 | 179 | printf(" %02x", ((char *)&packet)[i]); |
| okini3939 | 2:e37117117e79 | 180 | } |
| okini3939 | 3:1d5dc4107558 | 181 | */ |
| okini3939 | 2:e37117117e79 | 182 | } |
| okini3939 | 3:1d5dc4107558 | 183 | led4 = 0; |
| okini3939 | 2:e37117117e79 | 184 | } |
| okini3939 | 2:e37117117e79 | 185 | |
| okini3939 | 2:e37117117e79 | 186 | |
| okini3939 | 2:e37117117e79 | 187 | /// send packet (header only) |
| okini3939 | 2:e37117117e79 | 188 | void IpLine::send (struct ipline_header *header) { |
| okini3939 | 2:e37117117e79 | 189 | |
| okini3939 | 4:41a3534d085f | 190 | header->ident = PACKET_IDENT; |
| okini3939 | 2:e37117117e79 | 191 | if (! header->num) { |
| okini3939 | 2:e37117117e79 | 192 | header->num = packet_num; |
| okini3939 | 2:e37117117e79 | 193 | packet_num ++; |
| okini3939 | 2:e37117117e79 | 194 | if (packet_num >= 65536) packet_num = 1; |
| okini3939 | 2:e37117117e79 | 195 | } |
| okini3939 | 2:e37117117e79 | 196 | udpsock->sendto((char *)header, sizeof(struct ipline_header), &remote); |
| okini3939 | 2:e37117117e79 | 197 | memcpy(&last, header, sizeof(struct ipline_header)); |
| okini3939 | 2:e37117117e79 | 198 | |
| okini3939 | 2:e37117117e79 | 199 | for (int i = 0; i < sizeof(struct ipline_header); i ++) { |
| okini3939 | 2:e37117117e79 | 200 | printf(" %02x", ((char *)header)[i]); |
| okini3939 | 2:e37117117e79 | 201 | } |
| okini3939 | 2:e37117117e79 | 202 | printf("(H)\r\n"); |
| okini3939 | 2:e37117117e79 | 203 | } |
| okini3939 | 2:e37117117e79 | 204 | |
| okini3939 | 2:e37117117e79 | 205 | /// send packet |
| okini3939 | 2:e37117117e79 | 206 | void IpLine::send (struct ipline_packet *packet) { |
| okini3939 | 2:e37117117e79 | 207 | |
| okini3939 | 4:41a3534d085f | 208 | packet->header.ident = PACKET_IDENT; |
| okini3939 | 2:e37117117e79 | 209 | if (! packet->header.num) { |
| okini3939 | 2:e37117117e79 | 210 | packet->header.num = packet_num; |
| okini3939 | 2:e37117117e79 | 211 | packet_num ++; |
| okini3939 | 2:e37117117e79 | 212 | if (packet_num >= 65536) packet_num = 1; |
| okini3939 | 2:e37117117e79 | 213 | } |
| okini3939 | 2:e37117117e79 | 214 | udpsock->sendto((char *)packet, sizeof(struct ipline_packet), &remote); |
| okini3939 | 2:e37117117e79 | 215 | } |
| okini3939 | 2:e37117117e79 | 216 | |
| okini3939 | 2:e37117117e79 | 217 | /// change mode |
| okini3939 | 2:e37117117e79 | 218 | int IpLine::enter (enum Mode newmode) { |
| okini3939 | 2:e37117117e79 | 219 | struct ipline_header header; |
| okini3939 | 2:e37117117e79 | 220 | |
| okini3939 | 2:e37117117e79 | 221 | mode = newmode; |
| okini3939 | 2:e37117117e79 | 222 | status = StatusOk; |
| okini3939 | 2:e37117117e79 | 223 | |
| okini3939 | 2:e37117117e79 | 224 | switch (mode) { |
| okini3939 | 2:e37117117e79 | 225 | case ModeReady: |
| okini3939 | 2:e37117117e79 | 226 | hook = HookOff; |
| okini3939 | 2:e37117117e79 | 227 | break; |
| okini3939 | 2:e37117117e79 | 228 | |
| okini3939 | 2:e37117117e79 | 229 | case ModeBT: |
| okini3939 | 2:e37117117e79 | 230 | case ModeDisconnect: |
| okini3939 | 2:e37117117e79 | 231 | hook = HookOff; |
| okini3939 | 2:e37117117e79 | 232 | case ModeRing: |
| okini3939 | 2:e37117117e79 | 233 | case ModeTalk: |
| okini3939 | 3:1d5dc4107558 | 234 | adbuf.clear(); |
| okini3939 | 3:1d5dc4107558 | 235 | dabuf.clear(); |
| okini3939 | 2:e37117117e79 | 236 | status = StatusNone; |
| okini3939 | 2:e37117117e79 | 237 | header.num = 0; |
| okini3939 | 2:e37117117e79 | 238 | header.target = remotetarget; |
| okini3939 | 2:e37117117e79 | 239 | header.mode = mode; |
| okini3939 | 2:e37117117e79 | 240 | header.status = status; |
| okini3939 | 2:e37117117e79 | 241 | send(&header); |
| okini3939 | 2:e37117117e79 | 242 | timeout = NET_RETRY; |
| okini3939 | 2:e37117117e79 | 243 | break; |
| okini3939 | 2:e37117117e79 | 244 | } |
| okini3939 | 2:e37117117e79 | 245 | |
| okini3939 | 2:e37117117e79 | 246 | return 0; |
| okini3939 | 2:e37117117e79 | 247 | } |
| okini3939 | 2:e37117117e79 | 248 | |
| okini3939 | 2:e37117117e79 | 249 | /// return status |
| okini3939 | 2:e37117117e79 | 250 | int IpLine::scan (enum Scan type) { |
| okini3939 | 2:e37117117e79 | 251 | |
| okini3939 | 2:e37117117e79 | 252 | switch (type) { |
| okini3939 | 2:e37117117e79 | 253 | case ScanMode: |
| okini3939 | 2:e37117117e79 | 254 | return mode; |
| okini3939 | 2:e37117117e79 | 255 | |
| okini3939 | 2:e37117117e79 | 256 | case ScanStatus: |
| okini3939 | 2:e37117117e79 | 257 | return status; |
| okini3939 | 2:e37117117e79 | 258 | |
| okini3939 | 2:e37117117e79 | 259 | case ScanHook: |
| okini3939 | 2:e37117117e79 | 260 | return hook; |
| okini3939 | 2:e37117117e79 | 261 | |
| okini3939 | 2:e37117117e79 | 262 | case ScanDial: |
| okini3939 | 2:e37117117e79 | 263 | char c; |
| okini3939 | 2:e37117117e79 | 264 | if (dial.get(c) == 0) |
| okini3939 | 2:e37117117e79 | 265 | return c; |
| okini3939 | 2:e37117117e79 | 266 | break; |
| okini3939 | 2:e37117117e79 | 267 | |
| okini3939 | 2:e37117117e79 | 268 | } |
| okini3939 | 2:e37117117e79 | 269 | |
| okini3939 | 2:e37117117e79 | 270 | return -1; |
| okini3939 | 2:e37117117e79 | 271 | } |
| okini3939 | 2:e37117117e79 | 272 | |
| okini3939 | 2:e37117117e79 | 273 | /// set target |
| okini3939 | 2:e37117117e79 | 274 | void IpLine::settarget (enum PhoneType target, char *host) { |
| okini3939 | 2:e37117117e79 | 275 | int ip0, ip1, ip2, ip3; |
| okini3939 | 2:e37117117e79 | 276 | |
| okini3939 | 2:e37117117e79 | 277 | remotetarget = target; |
| okini3939 | 2:e37117117e79 | 278 | if (host[0] >= '0' && host[0] <= '9') { |
| okini3939 | 2:e37117117e79 | 279 | sscanf(host, "%d.%d.%d.%d", &ip0, &ip1, &ip2, &ip3); |
| okini3939 | 2:e37117117e79 | 280 | remote.setIp(IpAddr(ip0, ip1, ip2, ip3)); |
| okini3939 | 2:e37117117e79 | 281 | remote.setName(NULL); |
| okini3939 | 2:e37117117e79 | 282 | } else { |
| okini3939 | 2:e37117117e79 | 283 | remote.setIp(NULL); |
| okini3939 | 2:e37117117e79 | 284 | remote.setName(host); |
| okini3939 | 2:e37117117e79 | 285 | } |
| okini3939 | 2:e37117117e79 | 286 | remote.setPort(UDPPORT); |
| okini3939 | 2:e37117117e79 | 287 | } |
| okini3939 | 4:41a3534d085f | 288 | |
| okini3939 | 4:41a3534d085f | 289 | unsigned long IpLine::xor128 () { |
| okini3939 | 4:41a3534d085f | 290 | static unsigned long x = 123456789; |
| okini3939 | 4:41a3534d085f | 291 | static unsigned long y = 362436069, z = 521288629, w = 88675123; |
| okini3939 | 4:41a3534d085f | 292 | unsigned long t; |
| okini3939 | 4:41a3534d085f | 293 | t = (x ^ (x << 11)); |
| okini3939 | 4:41a3534d085f | 294 | x = y; y = z; z = w; |
| okini3939 | 4:41a3534d085f | 295 | return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)) ); |
| okini3939 | 4:41a3534d085f | 296 | } |
| okini3939 | 4:41a3534d085f | 297 | |
| okini3939 | 4:41a3534d085f | 298 | int IpLine::gaussian () { |
| okini3939 | 4:41a3534d085f | 299 | int i, j; |
| okini3939 | 4:41a3534d085f | 300 | |
| okini3939 | 4:41a3534d085f | 301 | j = 0; |
| okini3939 | 4:41a3534d085f | 302 | for (i = 0; i < 12; i ++) { |
| okini3939 | 4:41a3534d085f | 303 | j = j + (xor128() >> 16); |
| okini3939 | 4:41a3534d085f | 304 | } |
| okini3939 | 4:41a3534d085f | 305 | j = (j - 0x60000) & 0xffff; |
| okini3939 | 4:41a3534d085f | 306 | return 0x3fff + (j >> 1); |
| okini3939 | 4:41a3534d085f | 307 | } |