diff options
Diffstat (limited to 'openpicc/application/ssc_picc.c')
| -rw-r--r-- | openpicc/application/ssc_picc.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/openpicc/application/ssc_picc.c b/openpicc/application/ssc_picc.c index e2bc213..64013ea 100644 --- a/openpicc/application/ssc_picc.c +++ b/openpicc/application/ssc_picc.c @@ -262,8 +262,15 @@ static ssc_dma_rx_buffer_t* __ramfunc __ssc_rx_unload(int secondary) } else { AT91F_PDC_SetRx(rx_pdc, 0, 0); } - if(buffer->state == PENDING) { + if(buffer->state == PENDING || buffer->state==FULL) { buffer->len_transfers = elapsed_transfers; + {int i=usb_print_set_default_flush(0); + DumpStringToUSB("<"); + DumpUIntToUSB((unsigned int)buffer); + DumpStringToUSB(": "); + DumpUIntToUSB(elapsed_transfers); + DumpStringToUSB("> "); + usb_print_set_default_flush(i);} if(elapsed_transfers > 0) { buffer->state = FULL; } else { @@ -293,6 +300,7 @@ void ssc_rx_mode_set(enum ssc_mode ssc_mode) { u_int8_t data_len=0, num_data=0, sync_len=0; u_int32_t start_cond=0; + u_int32_t clock_gating=0; u_int8_t stop = 0; /* disable Rx and all Rx interrupt sources */ @@ -306,6 +314,7 @@ void ssc_rx_mode_set(enum ssc_mode ssc_mode) ssc->SSC_RC0R = ISO14443A_SOF_SAMPLE; data_len = ISO14443A_SHORT_LEN; num_data = 2; + clock_gating = (0x2 << 6); break; case SSC_MODE_14443A_STANDARD: start_cond = AT91C_SSC_START_0; @@ -313,14 +322,17 @@ void ssc_rx_mode_set(enum ssc_mode ssc_mode) ssc->SSC_RC0R = ISO14443A_SOF_SAMPLE; data_len = 32; num_data = 16; /* FIXME */ + clock_gating = (0x2 << 6); break; case SSC_MODE_14443A: start_cond = AT91C_SSC_START_0; - sync_len = ISO14443A_SOF_LEN; - ssc->SSC_RC0R = ISO14443A_SOF_SAMPLE; + sync_len = ISO14443A_EOF_LEN; + ssc->SSC_RC0R = ISO14443A_SOF_SAMPLE << (ISO14443A_EOF_LEN-ISO14443A_SOF_LEN); + ssc->SSC_RC1R = ISO14443A_EOF_SAMPLE; data_len = ISO14443A_SAMPLE_LEN; num_data = 16; /* Start with 16, then switch to continuous in the IRQ handler */ - stop = 1; /* Actually the documentation indicates that setting STOP makes switching to continuous unnecessary */ + stop = 1; /* It's impossible to use "stop on compare 1" for the stop condition here */ + clock_gating = (0x0 << 6); break; case SSC_MODE_14443B: /* start sampling at first falling data edge */ @@ -336,6 +348,7 @@ void ssc_rx_mode_set(enum ssc_mode ssc_mode) sync_len = 0; data_len = 32; num_data = 16; + clock_gating = (0x2 << 6); break; case SSC_MODE_NONE: goto out_set_mode; @@ -348,7 +361,7 @@ void ssc_rx_mode_set(enum ssc_mode ssc_mode) //| AT91C_SSC_MSBF ; ssc->SSC_RCMR = AT91C_SSC_CKS_RK | AT91C_SSC_CKO_NONE | - (0x2 << 6) | AT91C_SSC_CKI | start_cond | (stop << 12); + clock_gating | AT91C_SSC_CKI | start_cond | (stop << 12); /* Enable Rx DMA */ AT91F_PDC_EnableRx(rx_pdc); @@ -471,7 +484,8 @@ static void __ramfunc ssc_irq(void) if ((ssc_sr & AT91C_SSC_CP0) && (ssc_state.mode == SSC_MODE_14443A_SHORT || ssc_state.mode == SSC_MODE_14443A)) { if(ssc_state.mode == SSC_MODE_14443A && ISO14443A_SOF_LEN != ISO14443A_EOF_LEN) { /* Need to reprogram FSLEN */ - ssc->SSC_RFMR = (ssc->SSC_RFMR & ~(0xf << 16)) | ( ((ISO14443A_EOF_LEN-1)&0xf) << 16 ); + //ssc->SSC_RFMR = (ssc->SSC_RFMR & ~(0xf << 16)) | ( ((ISO14443A_EOF_LEN-1)&0xf) << 16 ); + //ssc->SSC_RCMR = (ssc->SSC_RCMR & ~(0xf << 8)) | AT91C_SSC_START_CONTINOUS; } /* Short frame, busy loop till the frame is received completely to * prevent a second irq entrance delay when the actual frame end |