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Diffstat (limited to 'src/rfid_asic_rc632_14443a.c')
-rw-r--r--src/rfid_asic_rc632_14443a.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/src/rfid_asic_rc632_14443a.c b/src/rfid_asic_rc632_14443a.c
deleted file mode 100644
index 4c8a37b..0000000
--- a/src/rfid_asic_rc632_14443a.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * Philips CL RC632 primitives for ISO 14443-A compliant PICC's
- *
- * (C) 2005 by Harald Welte <laforge@gnumonks.org>
- *
- */
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <rfid/rfid.h>
-#include <rfid/rfid_asic_rc632.h>
-#include <rfid/rfid_layer2_iso14443a.h>
-
-#include "rc632.h"
-
-#include "cm5121_rfid.h" /* FIXME: this needs to be modular */
-
-static int
-rc632_iso14443a_init(struct rfid_asic_handle *handle)
-{
- int ret;
-
-#if 0
- ret = rc632_power_up(handle);
- if (ret < 0)
- return ret;
-
- ret = rc632_turn_on_rf(handle);
- if (ret < 0)
- return ret;
-#endif
-
- // FIXME: some fifo work (drain fifo?)
-
- /* flush fifo (our way) */
- ret = rc632_reg_write(handle, RC632_REG_CONTROL, 0x01);
-
- ret = rc632_reg_write(handle, RC632_REG_TX_CONTROL,
- (RC632_TXCTRL_TX1_RF_EN |
- RC632_TXCTRL_TX2_RF_EN |
- RC632_TXCTRL_TX2_INV |
- RC632_TXCTRL_FORCE_100_ASK |
- RC632_TXCTRL_MOD_SRC_INT));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CW_CONDUCTANCE,
- CM5121_CW_CONDUCTANCE);
- if (ret < 0)
- return ret;
-
- /* Since FORCE_100_ASK is set (cf mc073930.pdf), this line may be left out? */
- ret = rc632_reg_write(handle, RC632_REG_MOD_CONDUCTANCE,
- CM5121_MOD_CONDUCTANCE);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CODER_CONTROL,
- (RC632_CDRCTRL_TXCD_14443A |
- RC632_CDRCTRL_RATE_106K));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_MOD_WIDTH, 0x13);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_MOD_WIDTH_SOF, 0x3f);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_TYPE_B_FRAMING, 0x00);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_RX_CONTROL1,
- (RC632_RXCTRL1_GAIN_35DB |
- RC632_RXCTRL1_ISO14443 |
- RC632_RXCTRL1_SUBCP_8));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_DECODER_CONTROL,
- (RC632_DECCTRL_MANCHESTER |
- RC632_DECCTRL_RXFR_14443A));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_BIT_PHASE,
- CM5121_14443A_BITPHASE);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_RX_THRESHOLD,
- CM5121_14443A_THRESHOLD);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_BPSK_DEM_CONTROL, 0x00);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_RX_CONTROL2,
- (RC632_RXCTRL2_DECSRC_INT |
- RC632_RXCTRL2_CLK_Q));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_RX_WAIT, 0x03);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD));
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CRC_PRESET_LSB, 0x63);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CRC_PRESET_MSB, 0x63);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int
-rc632_iso14443a_fini(struct iso14443a_handle *handle_14443)
-{
-
-#if 0
- ret = rc632_turn_off_rf(handle);
- if (ret < 0)
- return ret;
-#endif
-
-
- return 0;
-}
-
-#if 0
-int
-rc632_iso14443a_select(struct rc632_handle *handle,
- unsigned char *retptr,
- )
-{
- int ret;
- unsigned char tx_buf[7];
- unsigned char rx_buf[64];
- unsigned char rx_len = 1;
-
- memset(rx_buf, 0, sizeof(rx_buf));
-
- tx_buf[0] = arg_8;
- tx_buf[1] = 0x70;
- (u_int32_t *)tx_buf[2] = arg_4;
- tx_buf[6] = arg4+4;
-
- /* disable mifare cryto */
- ret = rc632_clear_bit(handle, RC632_REG_CONTROL,
- RC632_CONTROL_CRYPTO1_ON);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD |
- RC632_CR_TX_CRC_ENABLE |
- RC632_CR_RX_CRC_ENABLE));
- if (ret < 0)
- return ret;
-
- ret = rc632_transcieve(handle, tx_buf, sizeof(tx_buf),
- rx_buf, &rx_len, 0x32, 0);
-
- if (ret < 0 || rx_len != 1)
- return ret;
-
- *retptr = rx_buf[0];
-
- return 0;
-}
-
-/* issue a 14443-3 A PCD -> PICC command, such as REQA, WUPA */
-int
-rc632_iso14443a_req(sutruct rc632_handle *handle, unsigned char req,
- unsigned char *resp)
-{
- int ret;
- unsigned char tx_buf[1];
- unsigned char rx_buf[0x40];
- unsigned char rx_len = 2;
-
- memset(rx_buf, 0, sizeof(rx_buf));
-
- tx_buf[0] = req;
-
- /* transfer only 7 bits of last byte in frame */
- ret = rc632_reg_write(handle, RC632_REG_BIT_FRAMING, 0x07);
- if (ret < 0)
- return ret;
-
-
- ret = rc632_clear_bits(handle, RC632_REG_CONTROL,
- RC632_CONTROL_CRYPTO1_ON);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD));
- if (ret < 0)
- return ret;
-
- ret = rc632_transcieve(handle, tx_buf, sizeof(tx_buf), rx_buf,
- &rx_len, 0x32, 0);
- if (ret < 0)
- return ret;
-
- /* switch back to normal 8bit last byte */
- ret = rc632_reg_write(handle, RC632_REG_BIT_FRAMING, 0x00);
- if (ret < 0)
- return ret;
-
- if ((rx_len != 2) || (rx_buf[1] != 0xf0))
- return -1;
-
- resp[0] = rx_buf[0];
- resp[1] = rx_buf[1];
-
- return 0;
-}
-#endif
-
-/* issue a 14443-3 A PCD -> PICC command in a short frame, such as REQA, WUPA */
-static int
-rc632_iso14443a_transcieve_sf(struct rfid_asic_handle *handle,
- unsigned char cmd,
- struct iso14443a_atqa *atqa)
-{
- int ret;
- unsigned char tx_buf[1];
- unsigned char rx_len = 2;
-
- memset(atqa, 0, sizeof(atqa));
-
- tx_buf[0] = cmd;
-
- /* transfer only 7 bits of last byte in frame */
- ret = rc632_reg_write(handle, RC632_REG_BIT_FRAMING, 0x07);
- if (ret < 0)
- return ret;
-
-
- ret = rc632_clear_bits(handle, RC632_REG_CONTROL,
- RC632_CONTROL_CRYPTO1_ON);
- if (ret < 0)
- return ret;
-
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD));
- if (ret < 0)
- return ret;
-
- ret = rc632_transcieve(handle, tx_buf, sizeof(tx_buf),
- (unsigned char *)atqa, &rx_len, 0x32, 0);
- if (ret < 0) {
- DEBUGP("error during rc632_transcieve()\n");
- return ret;
- }
-
- /* switch back to normal 8bit last byte */
- ret = rc632_reg_write(handle, RC632_REG_BIT_FRAMING, 0x00);
- if (ret < 0)
- return ret;
-
- if (rx_len != 2) {
- DEBUGP("rx_len(%d) != 2\n", rx_len);
- return -1;
- }
-
- return 0;
-}
-
-/* transcieve regular frame */
-static int
-rc632_iso14443a_transcieve(struct rfid_asic_handle *handle,
- const unsigned char *tx_buf, unsigned int tx_len,
- unsigned char *rx_buf, unsigned int *rx_len,
- unsigned int timeout, unsigned int flags)
-{
- int ret;
- unsigned char rxl = *rx_len & 0xff;
-
- memset(rx_buf, 0, *rx_len);
-
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD |
- RC632_CR_TX_CRC_ENABLE |
- RC632_CR_RX_CRC_ENABLE));
- if (ret < 0)
- return ret;
-
- ret = rc632_transcieve(handle, tx_buf, tx_len, rx_buf, &rxl, 0x32, 0);
- *rx_len = rxl;
- if (ret < 0)
- return ret;
-
-
- return 0;
-}
-
-/* transcieve anti collission bitframe */
-static int
-rc632_iso14443a_transcieve_acf(struct rfid_asic_handle *handle,
- struct iso14443a_anticol_cmd *acf,
- unsigned int *bit_of_col)
-{
- int ret;
- unsigned char rx_buf[64];
- unsigned char rx_len = sizeof(rx_buf);
- unsigned char rx_align = 0, tx_last_bits, tx_bytes;
- unsigned char boc;
- unsigned char error_flag;
- *bit_of_col = ISO14443A_BITOFCOL_NONE;
- memset(rx_buf, 0, sizeof(rx_buf));
-
- /* disable mifare cryto */
- ret = rc632_clear_bits(handle, RC632_REG_CONTROL,
- RC632_CONTROL_CRYPTO1_ON);
- if (ret < 0)
- return ret;
-
- /* disalbe CRC summing */
- ret = rc632_reg_write(handle, RC632_REG_CHANNEL_REDUNDANCY,
- (RC632_CR_PARITY_ENABLE |
- RC632_CR_PARITY_ODD));
- if (ret < 0)
- return ret;
-
- tx_last_bits = acf->nvb & 0x0f; /* lower nibble indicates bits */
- tx_bytes = acf->nvb >> 4;
- if (tx_last_bits) {
- tx_bytes++;
- rx_align = (tx_last_bits+1) % 8;/* rx frame complements tx */
- }
-
- //rx_align = 8 - tx_last_bits;/* rx frame complements tx */
-
- /* set RxAlign and TxLastBits*/
- ret = rc632_reg_write(handle, RC632_REG_BIT_FRAMING,
- (rx_align << 4) | (tx_last_bits));
- if (ret < 0)
- return ret;
-
- ret = rc632_transcieve(handle, (unsigned char *)acf, tx_bytes,
- rx_buf, &rx_len, 0x32, 0);
- if (ret < 0)
- return ret;
-
- /* bitwise-OR the two halves of the split byte */
- acf->uid_bits[tx_bytes-2] = (
- (acf->uid_bits[tx_bytes-2] & (0xff >> (8-tx_last_bits)))
- | rx_buf[0]);
- /* copy the rest */
- memcpy(&acf->uid_bits[tx_bytes+1-2], &rx_buf[1], rx_len-1);
-
- /* determine whether there was a collission */
- ret = rc632_reg_read(handle, RC632_REG_ERROR_FLAG, &error_flag);
- if (ret < 0)
- return ret;
-
- if (error_flag & RC632_ERR_FLAG_COL_ERR) {
- /* retrieve bit of collission */
- ret = rc632_reg_read(handle, RC632_REG_COLL_POS, &boc);
- if (ret < 0)
- return ret;
-
- /* bit of collission relative to start of part 1 of
- * anticollision frame (!) */
- *bit_of_col = 2*8 + boc;
- }
-
- return 0;
-}
-
-
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