--- /dev/null
+/* OpenPC 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
+ */
+
+#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+7+10) /* 256bytes max FSD/FSC, plus 7 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->len = len;
+ 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 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->bNumInterfaces == 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_send_command(OPENPCD_CMD_WRITE_REG, reg, value, 0, NULL);
+ if (ret < 0)
+ DEBUGPC("ERROR\n");
+ else
+ DEBUGPC("OK\n");
+
+ ret = openpcd_recv_reply();
+ if (ret < 0)
+ DEBUGPC("ERROR\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_send_command(OPENPCD_CMD_READ_REG, reg, 0, 0, NULL);
+ if (ret < 0) {
+ DEBUGPC("ERROR\n");
+ return ret;
+ }
+
+ ret = openpcd_recv_reply();
+ if (ret < 0) {
+ DEBUGPC("ERROR\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_send_command(OPENPCD_CMD_READ_FIFO, 0x00, num_bytes, 0, NULL);
+ if (ret < 0) {
+ DEBUGPC("ERROR\n");
+ return ret;
+ }
+
+ ret = openpcd_recv_reply();
+ if (ret < 0) {
+ DEBUGPC("ERROR\n");
+ return ret;
+ }
+
+ memcpy(buf, rcv_hdr->data, rcv_hdr->len);
+
+ 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;
+
+ ret = openpcd_send_command(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)
+ return NULL;
+
+ hdl = usb_open(dev);
+ if (!hdl)
+ return NULL;
+
+ if (usb_claim_interface(hdl, 0) < 0) {
+ 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;
+
+ usb_close(hdl);
+
+ rc632_close(rh->ah);
+ free(rath);
+ free(rh);
+}
+
+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,
+ },
+};
+
+
projects / librfid / commitdiff