1 /* Omnikey CardMan 5121 specific RC632 transport layer
3 * (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
5 * The 5121 is an Atmel AT89C5122 based USB CCID reader (probably the same
6 * design like the 3121). It's CL RC632 is connected via address/data bus,
9 * The vendor-supplied reader firmware provides some undocumented extensions
10 * to CCID (via PC_to_RDR_Escape) that allow access to registers and FIFO of
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2
18 * as published by the Free Software Foundation
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 #include <librfid/rfid.h>
36 #ifndef LIBRFID_FIRMWARE
38 #include <librfid/rfid_reader.h>
39 #include <librfid/rfid_asic.h>
40 #include <librfid/rfid_asic_rc632.h>
41 #include <librfid/rfid_reader_cm5121.h>
42 #include <librfid/rfid_layer2.h>
43 #include <librfid/rfid_protocol.h>
45 #include "cm5121_source.h"
50 #define SENDBUF_LEN 256+7+10 /* 256bytes max FSD/FSC, plus 7 bytes header,
51 plus 10 bytes reserve */
52 #define RECVBUF_LEN SENDBUF_LEN
54 //#define DEBUG_REGISTER
57 #define DEBUGRC DEBUGPC
60 #define DEBUGRC(x, args ...) do {} while(0)
61 #define DEBUGR(x, args ...) do {} while(0)
65 int Write1ByteToReg(struct rfid_asic_transport_handle *rath,
66 unsigned char reg, unsigned char value)
68 unsigned char sndbuf[SENDBUF_LEN];
69 unsigned char rcvbuf[RECVBUF_LEN];
70 unsigned int retlen = RECVBUF_LEN;
81 DEBUGR("reg=0x%02x, val=%02x: ", reg, value);
83 if (PC_to_RDR_Escape(rath->data, sndbuf, 8, rcvbuf,
93 static int Read1ByteFromReg(struct rfid_asic_transport_handle *rath,
97 unsigned char sndbuf[SENDBUF_LEN];
98 unsigned char recvbuf[RECVBUF_LEN];
99 unsigned int retlen = sizeof(recvbuf);
109 if (PC_to_RDR_Escape(rath->data, sndbuf, 7, recvbuf,
112 DEBUGR("reg=0x%02x, val=%02x: ", reg, *value);
121 static int ReadNBytesFromFIFO(struct rfid_asic_transport_handle *rath,
122 unsigned char num_bytes,
125 unsigned char sndbuf[SENDBUF_LEN];
126 unsigned char recvbuf[0x7f];
127 unsigned int retlen = sizeof(recvbuf);
133 sndbuf[4] = num_bytes;
137 DEBUGR("num_bytes=%u: ", num_bytes);
138 if (PC_to_RDR_Escape(rath->data, sndbuf, 7, recvbuf, &retlen) == 0) {
139 DEBUGRC("%u [%s]\n", retlen,
140 rfid_hexdump(recvbuf+1, num_bytes));
141 memcpy(buf, recvbuf+1, num_bytes); // len == 0x7f
149 static int WriteNBytesToFIFO(struct rfid_asic_transport_handle *rath,
151 const unsigned char *bytes,
154 unsigned char sndbuf[SENDBUF_LEN];
155 unsigned char recvbuf[0x7f];
156 unsigned int retlen = sizeof(recvbuf);
166 DEBUGR("%u [%s]: ", len, rfid_hexdump(bytes, len));
168 memcpy(sndbuf+7, bytes, len);
170 if (PC_to_RDR_Escape(rath->data, sndbuf, len+7, recvbuf, &retlen) == 0) {
171 DEBUGRC("OK (%u [%s])\n", retlen, rfid_hexdump(recvbuf, retlen));
180 static int TestFIFO(struct rc632_handle *handle)
182 unsigned char sndbuf[60]; // 0x3c
184 // FIXME: repne stosd, call
186 memset(sndbuf, 0, sizeof(sndbuf));
188 if (WriteNBytesToFIFO(handle, sizeof(sndbuf), sndbuf, 0) < 0)
191 return ReadNBytesFromFIFO(handle, sizeof(sndbuf), sndbuf);
195 static int cm5121_transceive(struct rfid_reader_handle *rh,
196 enum rfid_frametype frametype,
197 const unsigned char *tx_data, unsigned int tx_len,
198 unsigned char *rx_data, unsigned int *rx_len,
199 u_int64_t timeout, unsigned int flags)
201 return rh->ah->asic->priv.rc632.fn.transceive(rh->ah, frametype,
202 tx_data, tx_len, rx_data,
203 rx_len, timeout, flags);
206 static int cm5121_transceive_sf(struct rfid_reader_handle *rh,
207 unsigned char cmd, struct iso14443a_atqa *atqa)
209 return rh->ah->asic->priv.rc632.fn.iso14443a.transceive_sf(rh->ah,
215 cm5121_transceive_acf(struct rfid_reader_handle *rh,
216 struct iso14443a_anticol_cmd *cmd,
217 unsigned int *bit_of_col)
219 return rh->ah->asic->priv.rc632.fn.iso14443a.transceive_acf(rh->ah,
224 cm5121_14443a_init(struct rfid_reader_handle *rh)
226 return rh->ah->asic->priv.rc632.fn.iso14443a.init(rh->ah);
230 cm5121_14443a_set_speed(struct rfid_reader_handle *rh,
236 DEBUGP("setting rate: ");
238 case RFID_14443A_SPEED_106K:
242 case RFID_14443A_SPEED_212K:
246 case RFID_14443A_SPEED_424K:
250 case RFID_14443A_SPEED_848K:
255 DEBUGPC("invalid\n");
259 return rh->ah->asic->priv.rc632.fn.iso14443a.set_speed(rh->ah,
264 cm5121_14443b_init(struct rfid_reader_handle *rh)
266 return rh->ah->asic->priv.rc632.fn.iso14443b.init(rh->ah);
270 cm5121_15693_init(struct rfid_reader_handle *rh)
272 return rh->ah->asic->priv.rc632.fn.iso15693.init(rh->ah);
276 cm5121_mifare_setkey(struct rfid_reader_handle *rh, const u_int8_t *key)
278 return rh->ah->asic->priv.rc632.fn.mifare_classic.setkey(rh->ah, key);
282 cm5121_mifare_auth(struct rfid_reader_handle *rh, u_int8_t cmd,
283 u_int32_t serno, u_int8_t block)
285 return rh->ah->asic->priv.rc632.fn.mifare_classic.auth(rh->ah,
289 struct rfid_asic_transport cm5121_ccid = {
290 .name = "CM5121 OpenCT",
293 .reg_write = &Write1ByteToReg,
294 .reg_read = &Read1ByteFromReg,
295 .fifo_write = &WriteNBytesToFIFO,
296 .fifo_read = &ReadNBytesFromFIFO,
301 static int cm5121_enable_rc632(struct rfid_asic_transport_handle *rath)
303 unsigned char tx_buf[1] = { 0x01 };
304 unsigned char rx_buf[64];
305 unsigned int rx_len = sizeof(rx_buf);
307 PC_to_RDR_Escape(rath->data, tx_buf, 1, rx_buf, &rx_len);
312 static struct rfid_reader_handle *
313 cm5121_open(void *data)
315 struct rfid_reader_handle *rh;
316 struct rfid_asic_transport_handle *rath;
318 rh = malloc_reader_handle(sizeof(*rh));
321 memset(rh, 0, sizeof(*rh));
323 rath = malloc_rat_handle(sizeof(*rath));
326 memset(rath, 0, sizeof(*rath));
328 rath->rat = &cm5121_ccid;
329 rh->reader = &rfid_reader_cm5121;
331 if (cm5121_source_init(rath) < 0)
334 if (cm5121_enable_rc632(rath) < 0)
337 rh->ah = rc632_open(rath);
341 DEBUGP("returning %p\n", rh);
345 free_rat_handle(rath);
347 free_reader_handle(rh);
353 cm5121_close(struct rfid_reader_handle *rh)
355 struct rfid_asic_transport_handle *rath = rh->ah->rath;
357 free_rat_handle(rath);
358 free_reader_handle(rh);
361 const struct rfid_reader rfid_reader_cm5121 = {
362 .name = "Omnikey CardMan 5121 RFID",
363 .open = &cm5121_open,
364 .close = &cm5121_close,
365 .transceive = &cm5121_transceive,
366 .l2_supported = (1 << RFID_LAYER2_ISO14443A) |
367 (1 << RFID_LAYER2_ISO14443B) |
368 (1 << RFID_LAYER2_ISO15693),
369 .proto_supported = (1 << RFID_PROTOCOL_TCL) |
370 (1 << RFID_PROTOCOL_MIFARE_UL) |
371 (1 << RFID_PROTOCOL_MIFARE_CLASSIC),
373 .init = &cm5121_14443a_init,
374 .transceive_sf = &cm5121_transceive_sf,
375 .transceive_acf = &cm5121_transceive_acf,
376 .speed = RFID_14443A_SPEED_106K | RFID_14443A_SPEED_212K |
377 RFID_14443A_SPEED_424K, //| RFID_14443A_SPEED_848K,
378 .set_speed = &cm5121_14443a_set_speed,
381 .init = &cm5121_14443b_init,
384 .init = &cm5121_15693_init,
387 .setkey = &cm5121_mifare_setkey,
388 .auth = &cm5121_mifare_auth,
392 #endif /* LIBRFID_FIRMWARE */