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cardem: use USART timeout for waiting time

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the reset/ATR handling has been heavily updated/fixed.
instead of using the timer counter peripheral to handle
the waiting time and corresponding timeout, the USART peripheral
internal timeout mechanism is used.
this is particularly important for the SIMtrace board since the
clock signal is not connected to the timer counter.
thus this change adds card emulation support for SIMtrace boards.

Fi and Di have been properly rename to F and D since the "i"
stands only for an "indicated" value, not the actual value.
this does not change the USB protocol (the variable have just been
renamed).
additional variables store more information about the card
capabilities

NOTE: it has only be tested for the SIMtrace board

Change-Id: Ibcb2c8cace9137695adf5fb3de43566f7cfb93b5
This commit is contained in:
Kévin Redon
2019-06-13 15:41:52 +02:00
parent e3d516745d
commit 76c2eebae2
9 changed files with 296 additions and 119 deletions
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9
firmware/libcommon/include/simtrace_prot.h
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@@ -228,11 +228,10 @@ struct cardemu_usb_msg_status {
uint32_t flags;
/* phone-applied target voltage in mV */
uint16_t voltage_mv;
/* Fi/Di related information */
uint8_t fi;
uint8_t di;
uint8_t wi;
uint32_t waiting_time;
uint8_t f; /*!< index of F and f_max values as encoded in ISO/IEC 7816-3:2006(E) Table 7 */
uint8_t d; /*!< index of D value as encoded in ISO/IEC 7816-3:2006(E) Table 8 */
uint8_t wi; /*!< Waiting Integer as defined in ISO/IEC 7816-3:2006(E) Section 10.2 */
uint32_t wt; /*!< Waiting Time in ETU as defined in ISO/IEC 7816-3:2006(E) Section 8.1 */
} __attribute__ ((packed));
/* CEMU_USB_MSGT_DO_PTS */