395 lines
8.8 KiB
C
395 lines
8.8 KiB
C
/* OpenPCD specific RC632 transport layer
|
|
*
|
|
* (C) 2006 by Harald Welte <laforge@gnumonks.org>
|
|
*
|
|
* The OpenPCD is an Atmel AT91SAM7Sxx based USB RFID reader.
|
|
* It's CL RC632 is connected via SPI.
|
|
*
|
|
* TODO:
|
|
* - put hdl from static variable into asic transport or reader handle
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
//#define DEBUG
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <usb.h>
|
|
|
|
#include <librfid/rfid.h>
|
|
#include <librfid/rfid_reader.h>
|
|
#include <librfid/rfid_asic.h>
|
|
#include <librfid/rfid_asic_rc632.h>
|
|
#include <librfid/rfid_reader_openpcd.h>
|
|
|
|
/* FIXME */
|
|
#include "rc632.h"
|
|
|
|
|
|
#define SENDBUF_LEN (256+4+10) /* 256bytes max FSD/FSC, plus 4 bytes header,
|
|
plus 10 bytes reserve */
|
|
#define RECVBUF_LEN SENDBUF_LEN
|
|
|
|
static char snd_buf[SENDBUF_LEN];
|
|
static char rcv_buf[RECVBUF_LEN];
|
|
static struct openpcd_hdr *snd_hdr;
|
|
static struct openpcd_hdr *rcv_hdr;
|
|
|
|
|
|
static struct usb_device *dev;
|
|
static struct usb_dev_handle *hdl;
|
|
|
|
static int openpcd_send_command(u_int8_t cmd, u_int8_t reg, u_int8_t val,
|
|
u_int16_t len, const unsigned char *data)
|
|
{
|
|
int ret;
|
|
u_int16_t cur;
|
|
|
|
snd_hdr->cmd = cmd;
|
|
snd_hdr->reg = reg;
|
|
snd_hdr->val = val;
|
|
snd_hdr->flags = OPENPCD_FLAG_RESPOND;
|
|
if (data && len)
|
|
memcpy(snd_hdr->data, data, len);
|
|
|
|
cur = sizeof(*snd_hdr) + len;
|
|
|
|
return usb_bulk_write(hdl, OPENPCD_OUT_EP, snd_hdr, cur, 0);
|
|
}
|
|
|
|
static int openpcd_recv_reply(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = usb_bulk_read(hdl, OPENPCD_IN_EP, rcv_buf, sizeof(rcv_buf), 1000);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openpcd_xcv(u_int8_t cmd, u_int8_t reg, u_int8_t val,
|
|
u_int16_t len, const unsigned char *data)
|
|
{
|
|
int ret;
|
|
|
|
ret = openpcd_send_command(cmd, reg, val, len, data);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret < sizeof(sizeof(struct openpcd_hdr)))
|
|
return -EINVAL;
|
|
|
|
return openpcd_recv_reply();
|
|
}
|
|
|
|
static struct usb_device *find_opcd_device(void)
|
|
{
|
|
struct usb_bus *bus;
|
|
|
|
for (bus = usb_busses; bus; bus = bus->next) {
|
|
struct usb_device *dev;
|
|
for (dev = bus->devices; dev; dev = dev->next) {
|
|
if (dev->descriptor.idVendor == OPENPCD_VENDOR_ID
|
|
&& dev->descriptor.idProduct == OPENPCD_PRODUCT_ID
|
|
&& dev->descriptor.iManufacturer == 0
|
|
&& dev->descriptor.iProduct == 0
|
|
&& dev->descriptor.bNumConfigurations == 1
|
|
&& dev->config->iConfiguration == 0)
|
|
return dev;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int openpcd_reg_write(struct rfid_asic_transport_handle *rath,
|
|
unsigned char reg, unsigned char value)
|
|
{
|
|
int ret;
|
|
|
|
DEBUGP("reg=0x%02x, val=%02x: ", reg, value);
|
|
|
|
ret = openpcd_xcv(OPENPCD_CMD_WRITE_REG, reg, value, 0, NULL);
|
|
if (ret < 0)
|
|
DEBUGPC("ERROR sending command\n");
|
|
else
|
|
DEBUGPC("OK\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openpcd_reg_read(struct rfid_asic_transport_handle *rath,
|
|
unsigned char reg,
|
|
unsigned char *value)
|
|
{
|
|
int ret;
|
|
|
|
DEBUGP("reg=0x%02x, ", reg);
|
|
|
|
ret = openpcd_xcv(OPENPCD_CMD_READ_REG, reg, 0, 0, NULL);
|
|
if (ret < 0) {
|
|
DEBUGPC("ERROR sending command\n");
|
|
return ret;
|
|
}
|
|
|
|
if (ret < sizeof(struct openpcd_hdr)) {
|
|
DEBUGPC("ERROR: short packet\n");
|
|
return ret;
|
|
}
|
|
|
|
*value = rcv_hdr->val;
|
|
DEBUGPC("val=%02x: OK\n", *value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openpcd_fifo_read(struct rfid_asic_transport_handle *rath,
|
|
unsigned char num_bytes,
|
|
unsigned char *buf)
|
|
{
|
|
int ret;
|
|
|
|
DEBUGP(" ");
|
|
|
|
ret = openpcd_xcv(OPENPCD_CMD_READ_FIFO, 0x00, num_bytes, 0, NULL);
|
|
if (ret < 0) {
|
|
DEBUGPC("ERROR sending command\n");
|
|
return ret;
|
|
}
|
|
DEBUGPC("ret = %d\n", ret);
|
|
|
|
memcpy(buf, rcv_hdr->data, ret - sizeof(struct openpcd_hdr));
|
|
DEBUGPC("len=%d val=%s: OK\n", ret - sizeof(struct openpcd_hdr),
|
|
rfid_hexdump(rcv_hdr->data, ret - sizeof(struct openpcd_hdr)));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openpcd_fifo_write(struct rfid_asic_transport_handle *rath,
|
|
unsigned char len,
|
|
const unsigned char *bytes,
|
|
unsigned char flags)
|
|
{
|
|
int ret;
|
|
|
|
DEBUGP("len=%u, data=%s\n", len, rfid_hexdump(bytes, len));
|
|
ret = openpcd_xcv(OPENPCD_CMD_WRITE_FIFO, 0, 0, len, bytes);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openpcd_transceive(struct rfid_reader_handle *rh,
|
|
enum rfid_frametype frametype,
|
|
const unsigned char *tx_data, unsigned int tx_len,
|
|
unsigned char *rx_data, unsigned int *rx_len,
|
|
u_int64_t timeout, unsigned int flags)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.transceive(rh->ah, frametype,
|
|
tx_data, tx_len, rx_data,
|
|
rx_len, timeout, flags);
|
|
}
|
|
|
|
static int openpcd_transceive_sf(struct rfid_reader_handle *rh,
|
|
unsigned char cmd, struct iso14443a_atqa *atqa)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.iso14443a.transceive_sf(rh->ah,
|
|
cmd,
|
|
atqa);
|
|
}
|
|
|
|
static int
|
|
openpcd_transceive_acf(struct rfid_reader_handle *rh,
|
|
struct iso14443a_anticol_cmd *cmd,
|
|
unsigned int *bit_of_col)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.iso14443a.transceive_acf(rh->ah,
|
|
cmd, bit_of_col);
|
|
}
|
|
|
|
static int
|
|
openpcd_14443a_init(struct rfid_reader_handle *rh)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.iso14443a.init(rh->ah);
|
|
}
|
|
|
|
static int
|
|
openpcd_14443a_set_speed(struct rfid_reader_handle *rh,
|
|
unsigned int tx,
|
|
unsigned int speed)
|
|
{
|
|
u_int8_t rate;
|
|
|
|
DEBUGP("setting rate: ");
|
|
switch (speed) {
|
|
case RFID_14443A_SPEED_106K:
|
|
rate = 0x00;
|
|
DEBUGPC("106K\n");
|
|
break;
|
|
case RFID_14443A_SPEED_212K:
|
|
rate = 0x01;
|
|
DEBUGPC("212K\n");
|
|
break;
|
|
case RFID_14443A_SPEED_424K:
|
|
rate = 0x02;
|
|
DEBUGPC("424K\n");
|
|
break;
|
|
case RFID_14443A_SPEED_848K:
|
|
rate = 0x03;
|
|
DEBUGPC("848K\n");
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
return rh->ah->asic->priv.rc632.fn.iso14443a.set_speed(rh->ah,
|
|
tx, rate);
|
|
}
|
|
|
|
static int
|
|
openpcd_14443b_init(struct rfid_reader_handle *rh)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.iso14443b.init(rh->ah);
|
|
}
|
|
|
|
static int
|
|
openpcd_15693_init(struct rfid_reader_handle *rh)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.iso15693.init(rh->ah);
|
|
}
|
|
|
|
static int
|
|
openpcd_mifare_setkey(struct rfid_reader_handle *rh, const u_int8_t *key)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.mifare_classic.setkey(rh->ah, key);
|
|
}
|
|
|
|
static int
|
|
openpcd_mifare_auth(struct rfid_reader_handle *rh, u_int8_t cmd,
|
|
u_int32_t serno, u_int8_t block)
|
|
{
|
|
return rh->ah->asic->priv.rc632.fn.mifare_classic.auth(rh->ah,
|
|
cmd, serno, block);
|
|
}
|
|
|
|
struct rfid_asic_transport openpcd_ccid = {
|
|
.name = "OpenPCD Dumb USB Protocol",
|
|
.priv.rc632 = {
|
|
.fn = {
|
|
.reg_write = &openpcd_reg_write,
|
|
.reg_read = &openpcd_reg_read,
|
|
.fifo_write = &openpcd_fifo_write,
|
|
.fifo_read = &openpcd_fifo_read,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct rfid_reader_handle *
|
|
openpcd_open(void *data)
|
|
{
|
|
struct rfid_reader_handle *rh;
|
|
struct rfid_asic_transport_handle *rath;
|
|
|
|
snd_hdr = (struct openpcd_hdr *)snd_buf;
|
|
rcv_hdr = (struct openpcd_hdr *)rcv_buf;
|
|
|
|
usb_init();
|
|
if (!usb_find_busses())
|
|
return NULL;
|
|
if (!usb_find_devices())
|
|
return NULL;
|
|
|
|
dev = find_opcd_device();
|
|
if (!dev) {
|
|
DEBUGP("No matching USB device found\n");
|
|
return NULL;
|
|
}
|
|
|
|
hdl = usb_open(dev);
|
|
if (!hdl) {
|
|
DEBUGP("Can't open USB device\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (usb_claim_interface(hdl, 0) < 0) {
|
|
DEBUGP("Can't claim interface\n");
|
|
usb_close(hdl);
|
|
return NULL;
|
|
}
|
|
|
|
rh = malloc(sizeof(*rh));
|
|
if (!rh)
|
|
return NULL;
|
|
memset(rh, 0, sizeof(*rh));
|
|
|
|
rath = malloc(sizeof(*rath));
|
|
if (!rath)
|
|
goto out_rh;
|
|
memset(rath, 0, sizeof(*rath));
|
|
|
|
rath->rat = &openpcd_ccid;
|
|
rh->reader = &rfid_reader_openpcd;
|
|
|
|
rh->ah = rc632_open(rath);
|
|
if (!rh->ah)
|
|
goto out_rath;
|
|
|
|
DEBUGP("returning %p\n", rh);
|
|
return rh;
|
|
|
|
out_rath:
|
|
free(rath);
|
|
out_rh:
|
|
free(rh);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
openpcd_close(struct rfid_reader_handle *rh)
|
|
{
|
|
struct rfid_asic_transport_handle *rath = rh->ah->rath;
|
|
|
|
rc632_close(rh->ah);
|
|
free(rath);
|
|
free(rh);
|
|
|
|
usb_close(hdl);
|
|
}
|
|
|
|
struct rfid_reader rfid_reader_openpcd = {
|
|
.name = "OpenPCD RFID Reader",
|
|
.id = RFID_READER_OPENPCD,
|
|
.open = &openpcd_open,
|
|
.close = &openpcd_close,
|
|
.transceive = &openpcd_transceive,
|
|
.iso14443a = {
|
|
.init = &openpcd_14443a_init,
|
|
.transceive_sf = &openpcd_transceive_sf,
|
|
.transceive_acf = &openpcd_transceive_acf,
|
|
.speed = RFID_14443A_SPEED_106K | RFID_14443A_SPEED_212K |
|
|
RFID_14443A_SPEED_424K, //| RFID_14443A_SPEED_848K,
|
|
.set_speed = &openpcd_14443a_set_speed,
|
|
},
|
|
.iso14443b = {
|
|
.init = &openpcd_14443b_init,
|
|
},
|
|
.mifare_classic = {
|
|
.setkey = &openpcd_mifare_setkey,
|
|
.auth = &openpcd_mifare_auth,
|
|
},
|
|
};
|