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Added a major refactoring to include Emulated interface.

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It works in combination with virtualsmarcard module (vpcd). It properly installed, it creates a virtual reader that can be interfaced via PCSC+vcpd. At user app level, it has no difference of having a physical smart card.

At this moment, it only works emulating a CCID interface.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-01-09 18:06:21 +01:00
parent 2d511df5d8
commit 4919eb980f
24 changed files with 617 additions and 141 deletions
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25
src/usb/usb.h
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@@ -18,7 +18,11 @@
#ifndef _USB_H_
#define _USB_H_
#ifndef ENABLE_EMULATION
#include "pico/util/queue.h"
#else
#include <stdbool.h>
#endif
/* USB thread */
#define EV_CARD_CHANGE 1
@@ -38,12 +42,16 @@
enum {
#ifndef ENABLE_EMULATION
#ifdef USB_ITF_HID
ITF_HID = 0,
ITF_KEYBOARD,
#endif
#ifdef USB_ITF_CCID
ITF_CCID,
#endif
#else
ITF_EMUL = 0,
#endif
ITF_TOTAL
};
@@ -55,8 +63,10 @@ enum
};
extern void usb_task();
#ifndef ENABLE_EMULATION
extern queue_t usb_to_card_q;
extern queue_t card_to_usb_q;
#endif
extern uint8_t card_locked_itf;
#ifdef USB_ITF_HID
@@ -83,14 +93,25 @@ extern size_t driver_read_ccid(uint8_t *, size_t);
extern int driver_process_usb_nopacket_ccid();
#endif
#ifdef ENABLE_EMULATION
extern int driver_process_usb_packet_emul(uint16_t rx_read);
extern void driver_exec_finished_emul(size_t size_next);
extern void driver_exec_finished_cont_emul(size_t size_next, size_t offset);
extern void driver_exec_timeout_emul();
extern bool driver_mounted_emul();
extern uint8_t *driver_prepare_response_emul();
extern int driver_write_emul(const uint8_t *, size_t);
extern size_t driver_read_emul(uint8_t *, size_t);
extern int driver_process_usb_nopacket_emul();
extern uint16_t emul_read();
#endif
extern size_t usb_rx(uint8_t itf, const uint8_t *buffer, size_t len);
extern void card_start(void (*func)(void));
extern void card_exit();
extern void usb_init();
extern uint8_t *usb_prepare_response(uint8_t itf);
extern void timeout_stop();
extern void timeout_start();
extern uint8_t *usb_get_rx(uint8_t itf);
extern uint8_t *usb_get_tx(uint8_t itf);
extern uint32_t usb_write_offset(uint8_t itf, uint16_t len, uint16_t offset);