-//-----------------------------------------------------------------------------
-// Entry point into our code: called whenever we received a packet over USB
-// that we weren't necessarily expecting, for example a debug print.
-//-----------------------------------------------------------------------------
-void UsbCommandReceived(UsbCommand *UC)
-{
- /*
- // Debug
- printf("UsbCommand length[len=%zd]\n",sizeof(UsbCommand));
- printf(" cmd[len=%zd]: %"llx"\n",sizeof(UC->cmd),UC->cmd);
- printf(" arg0[len=%zd]: %"llx"\n",sizeof(UC->arg[0]),UC->arg[0]);
- printf(" arg1[len=%zd]: %"llx"\n",sizeof(UC->arg[1]),UC->arg[1]);
- printf(" arg2[len=%zd]: %"llx"\n",sizeof(UC->arg[2]),UC->arg[2]);
- printf(" data[len=%zd]: %02x%02x%02x...\n",sizeof(UC->d.asBytes),UC->d.asBytes[0],UC->d.asBytes[1],UC->d.asBytes[2]);
- */
-
- // printf("%s(%x) current cmd = %x\n", __FUNCTION__, c->cmd, current_command);
- // If we recognize a response, return to avoid further processing
- switch(UC->cmd) {
- // First check if we are handling a debug message
- case CMD_DEBUG_PRINT_STRING: {
- char s[USB_CMD_DATA_SIZE+1];
- size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE);
- memcpy(s,UC->d.asBytes,len);
- s[len] = 0x00;
- PrintAndLog("#db# %s ", s);
- return;
- } break;
-
- case CMD_DEBUG_PRINT_INTEGERS: {
- PrintAndLog("#db# %08x, %08x, %08x \r\n", UC->arg[0], UC->arg[1], UC->arg[2]);
- return;
- } break;
-
- case CMD_MEASURED_ANTENNA_TUNING: {
- int peakv, peakf;
- int vLf125, vLf134, vHf;
- vLf125 = UC->arg[0] & 0xffff;
- vLf134 = UC->arg[0] >> 16;
- vHf = UC->arg[1] & 0xffff;;
- peakf = UC->arg[2] & 0xffff;
- peakv = UC->arg[2] >> 16;
- PrintAndLog("");
- PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
- PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
- PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
- PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
- if (peakv<2000)
- PrintAndLog("# Your LF antenna is unusable.");
- else if (peakv<10000)
- PrintAndLog("# Your LF antenna is marginal.");
- if (vHf<2000)
- PrintAndLog("# Your HF antenna is unusable.");
- else if (vHf<5000)
- PrintAndLog("# Your HF antenna is marginal.");
- } break;
-
- case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: {
-// printf("received samples: ");
-// print_hex(UC->d.asBytes,512);
- sample_buf_len += UC->arg[1];
-// printf("samples: %zd offset: %d\n",sample_buf_len,UC->arg[0]);
- memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]);
- } break;
-
-
-// case CMD_ACK: {
-// PrintAndLog("Receive ACK\n");
-// } break;
-
- default: {
- // Maybe it's a response
- /*
- switch(current_command) {
- case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
- if (UC->cmd != CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) {
- PrintAndLog("unrecognized command %08x\n", UC->cmd);
- break;
- }
-// int i;
- PrintAndLog("received samples %d\n",UC->arg[0]);
- memcpy(sample_buf+UC->arg[0],UC->d.asBytes,48);
- sample_buf_len += 48;
-// for(i=0; i<48; i++) sample_buf[i] = UC->d.asBytes[i];
- //received_command = UC->cmd;
- } break;
-
- default: {
- } break;
- }*/
- }
- break;
- }
-
- storeCommand(UC);
-
-}
-/**
- * @brief storeCommand stores a USB command in a circular buffer
- * @param UC
- */
-void storeCommand(UsbCommand *command)
-{
- if(cmd_head == cmd_tail)
- {
- //If these two are equal, we're about to overwrite in the
- // circular buffer.
- PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
- }
- //Store the command at the 'head' location
- UsbCommand* destination = &cmdBuffer[cmd_head];
- memcpy(destination, command, sizeof(UsbCommand));
-
- //Also, if cmd_tail is still -1 because the buffer was
- // previously empty, set it to head
- if(cmd_tail < 0) {
- cmd_tail = cmd_head;
- }
-
- cmd_head++; //increment head
- cmd_head %= CMD_BUFFER_SIZE;//wrap around
-
-}
-/**
- * @brief getCommand gets a command from an internal circular buffer.
- * @param response location to write command
- * @return 1 if response was returned, 0 if nothing has been received
- */
-int getCommand(UsbCommand* response)
-{
- //If head == tail, there's nothing to read, or if we just got initialized
- if(cmd_head == cmd_tail || cmd_tail == -1){
- return 0;
- }
- //Pick out the next unread command
- UsbCommand* last_unread = &cmdBuffer[cmd_tail];
- memcpy(response, last_unread, sizeof(UsbCommand));
- //Increment tail - this is a circular buffer, so modulo buffer size
- cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
- //In order to detect when the buffer overwrites itself, we set the
- // tail to -1 whenever it 'catches up' with head : this means the buffer is empty.
- // Otherwise, head==tail could mean both: either empty or full.
- if(cmd_tail == cmd_head){
- cmd_tail = -1 ;
- }
-
- return 1;
-
-}
projects / proxmark3-svn / blobdiff