It's a major reorganization.

In order to add FIDO2 support, we need to reorganize some USB/CCID calls to specific area (named driver).
Thus, pico-hsm-sdk has two drivers:
- CCID driver implements APDU over USB/CCID ISO-7816 standard procedures.
- HID driver implements APDU over HID.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

CMakeLists.txt

@@ -1,5 +1,5 @@
  #
- # This file is part of the Pico CCID distribution (https://github.com/polhenarejos/pico-ccid).
+ # This file is part of the Pico HSM SDK distribution (https://github.com/polhenarejos/pico-hsm-sdk).
  # Copyright (c) 2022 Pol Henarejos.
  #
  # This program is free software: you can redistribute it and/or modify
@@ -19,14 +19,14 @@ cmake_minimum_required(VERSION 3.13)
 
 include(pico_sdk_import.cmake)
 
-project(pico_ccid C CXX ASM)
+project(pico_hsm_sdk C CXX ASM)
 
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 17)
 
 pico_sdk_init()
 
-add_executable(pico_ccid)
+add_executable(pico_hsm_sdk)
 
 if (NOT DEFINED USB_VID)
     set(USB_VID 0xFEFF)
@@ -36,36 +36,65 @@ if (NOT DEFINED USB_PID)
     set(USB_PID 0xFCFD)
 endif()
 add_definitions(-DUSB_PID=${USB_PID})
+if (NOT DEFINED DEBUG_APDU)
+    set(DEBUG_APDU 0)
+endif()
+if (NOT DEFINED HSM_DRIVER)
+    set(HSM_DRIVER "ccid")
+endif()
+add_definitions(-DDEBUG_APDU=${DEBUG_APDU})
 configure_file(${CMAKE_CURRENT_LIST_DIR}/config/mbedtls_config.h ${CMAKE_CURRENT_LIST_DIR}/mbedtls/include/mbedtls COPYONLY)
 
-target_sources(pico_ccid PUBLIC
+message(STATUS "HSM driver: ${HSM_DRIVER}")
+
+
+target_sources(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src/main.c
         ${CMAKE_CURRENT_LIST_DIR}/src/usb/usb.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/usb/usb_descriptors.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/ccid/ccid2040.c
         ${CMAKE_CURRENT_LIST_DIR}/src/fs/file.c
         ${CMAKE_CURRENT_LIST_DIR}/src/fs/flash.c
         ${CMAKE_CURRENT_LIST_DIR}/src/fs/low_flash.c
         ${CMAKE_CURRENT_LIST_DIR}/src/rng/random.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/rng/neug.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/ccid/eac.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/ccid/crypto_utils.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/ccid/asn1.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/rng/hwrng.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/eac.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/crypto_utils.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/asn1.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/apdu.c
         )
 
-target_include_directories(pico_ccid PUBLIC
-        ${CMAKE_CURRENT_LIST_DIR}/src/fs
-        ${CMAKE_CURRENT_LIST_DIR}/src/ccid
-        ${CMAKE_CURRENT_LIST_DIR}/src/rng
+if (${HSM_DRIVER} STREQUAL "ccid")
+target_sources(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/ccid/usb_descriptors.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/ccid/ccid.c
+        )
+
+target_include_directories(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/ccid
+        )
+elseif (${HSM_DRIVER} STREQUAL "hid")
+target_sources(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/hid/hid.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/hid/usb_descriptors.c
+        )
+target_include_directories(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src/usb/hid
+        )
+endif()
+
+target_include_directories(pico_hsm_sdk PUBLIC
+        ${CMAKE_CURRENT_LIST_DIR}/src
         ${CMAKE_CURRENT_LIST_DIR}/src/usb
+        ${CMAKE_CURRENT_LIST_DIR}/src/fs
+        ${CMAKE_CURRENT_LIST_DIR}/src/rng
         ${CMAKE_CURRENT_LIST_DIR}/mbedtls/include
         ${CMAKE_CURRENT_LIST_DIR}/mbedtls/library
         )
 
-target_compile_options(pico_ccid PUBLIC
+target_compile_options(pico_hsm_sdk PUBLIC
     -Wall
     -Werror
 )
 
-pico_add_extra_outputs(pico_ccid)
+pico_add_extra_outputs(pico_hsm_sdk)
 
-target_link_libraries(pico_ccid PRIVATE pico_stdlib pico_multicore hardware_flash hardware_sync hardware_adc pico_unique_id hardware_rtc tinyusb_device tinyusb_board)
+target_link_libraries(pico_hsm_sdk PRIVATE pico_stdlib pico_multicore hardware_flash hardware_sync hardware_adc pico_unique_id hardware_rtc tinyusb_device tinyusb_board)