feat: publish FreeRTOS C FC05 card

2026-07-19 16:36:02 +02:00
commit 3f151c823d
194 changed files with 59220 additions and 0 deletions
@@ -0,0 +1,64 @@
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+#define configCPU_CLOCK_HZ                       ( 1000000UL )
+#define configTICK_RATE_HZ                       ( 1000U )
+#define configMTIME_BASE_ADDRESS                 ( 0xC0000100UL )
+#define configMTIMECMP_BASE_ADDRESS              ( 0xC0000108UL )
+
+#define configUSE_PREEMPTION                     1
+#define configUSE_TIME_SLICING                   1
+#define configNUMBER_OF_CORES                    1
+#define configUSE_PORT_OPTIMISED_TASK_SELECTION  0
+#define configUSE_IDLE_HOOK                      0
+#define configUSE_TICK_HOOK                      0
+#define configMAX_PRIORITIES                     5
+#define configMINIMAL_STACK_SIZE                 128
+#define configMAX_TASK_NAME_LEN                  16
+#define configTICK_TYPE_WIDTH_IN_BITS            TICK_TYPE_WIDTH_32_BITS
+#define configIDLE_SHOULD_YIELD                  1
+
+#define configSUPPORT_DYNAMIC_ALLOCATION         1
+#define configSUPPORT_STATIC_ALLOCATION          0
+#define configTOTAL_HEAP_SIZE                    ( 16U * 1024U )
+#define configAPPLICATION_ALLOCATED_HEAP         1
+#define configUSE_MALLOC_FAILED_HOOK             1
+#define configHEAP_CLEAR_MEMORY_ON_FREE          0
+
+#define configUSE_TIMERS                         0
+#define configUSE_MUTEXES                        0
+#define configUSE_RECURSIVE_MUTEXES              0
+#define configUSE_COUNTING_SEMAPHORES            0
+#define configUSE_TASK_NOTIFICATIONS             0
+#define configUSE_TRACE_FACILITY                 1
+#define configUSE_STATS_FORMATTING_FUNCTIONS     0
+#define configGENERATE_RUN_TIME_STATS            0
+#define configUSE_CO_ROUTINES                    0
+#define configUSE_NEWLIB_REENTRANT               0
+#define configUSE_POSIX_ERRNO                    0
+#define configCHECK_FOR_STACK_OVERFLOW           0
+#define configRECORD_STACK_HIGH_ADDRESS          1
+
+#define INCLUDE_vTaskDelay                       1
+#define INCLUDE_vTaskDelayUntil                  0
+#define INCLUDE_vTaskDelete                      1
+#define INCLUDE_vTaskSuspend                     0
+#define INCLUDE_eTaskGetState                    1
+#define INCLUDE_uxTaskPriorityGet                1
+#define INCLUDE_vTaskPrioritySet                 0
+#define INCLUDE_xTaskGetSchedulerState           1
+#define INCLUDE_uxTaskGetStackHighWaterMark      1
+
+#define configENABLE_FPU                         0
+#define configENABLE_VPU                         0
+#define configISR_STACK_SIZE_WORDS               128
+
+#ifndef __ASSEMBLER__
+void lab_assert_fail( const char * file, int line );
+#define configASSERT( condition ) \
+    do { if( !( condition ) ) { lab_assert_fail( __FILE__, __LINE__ ); } } while( 0 )
+#else
+#define configASSERT( condition )
+#endif
+
+#endif
@@ -0,0 +1,15 @@
+#ifndef FREERTOS_RISC_V_CHIP_SPECIFIC_EXTENSIONS_H
+#define FREERTOS_RISC_V_CHIP_SPECIFIC_EXTENSIONS_H
+
+/* Hazard3 adds no architectural registers to the base RV32I context. */
+#define portasmHAS_MTIME                  1
+#define portasmHAS_SIFIVE_CLINT           0
+#define portasmADDITIONAL_CONTEXT_SIZE    0
+
+.macro portasmSAVE_ADDITIONAL_REGISTERS
+.endm
+
+.macro portasmRESTORE_ADDITIONAL_REGISTERS
+.endm
+
+#endif
@@ -0,0 +1,11 @@
+#ifndef LAB_FREESTANDING_STDLIB_H
+#define LAB_FREESTANDING_STDLIB_H
+
+/*
+ * The selected FreeRTOS sources include <stdlib.h> for standard types, but the
+ * configuration used by this card does not call hosted stdlib functions.
+ * GCC's freestanding headers provide size_t through <stddef.h>.
+ */
+#include <stddef.h>
+
+#endif
@@ -0,0 +1,17 @@
+#ifndef LAB_FREESTANDING_STRING_H
+#define LAB_FREESTANDING_STRING_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void * memcpy( void * destination, const void * source, size_t count );
+void * memset( void * destination, int value, size_t count );
+size_t strlen( const char * text );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,48 @@
+#ifndef TASK01_QUEUE_H
+#define TASK01_QUEUE_H
+
+#include <stdint.h>
+
+#include "FreeRTOS.h"
+#include "queue.h"
+#include "task.h"
+#include "task01_queue_model.h"
+
+#define FC05_QUEUE_LENGTH       1U
+#define FC05_TASK_STACK_WORDS   256U
+#define FC05_RECEIVER_PRIORITY  3U
+#define FC05_SENDER_PRIORITY    2U
+#define FC05_VERIFIER_PRIORITY  1U
+#define FC05_EVENT_CAPACITY     12U
+#define FC05_TIMEOUT_TICKS      20U
+
+typedef struct QueueExperiment
+{
+    QueueHandle_t queue;
+    TaskHandle_t receiver_handle;
+    TaskHandle_t sender_handle;
+    TaskHandle_t verifier_handle;
+    QueueMessage received[ 3 ];
+    QueueMessage mutated_source;
+    eTaskState sender_state_when_full;
+    UBaseType_t waiting_when_full;
+    uintptr_t receiver_sp;
+    uintptr_t sender_sp;
+    uint32_t receiver_done;
+    uint32_t sender_done;
+    uint32_t pass;
+    uint32_t evidence_digest;
+} QueueExperiment;
+
+extern QueueExperiment g_fc05;
+extern QueueEvidence g_fc05_events[ FC05_EVENT_CAPACITY ];
+extern volatile uint32_t g_fc05_event_count;
+extern volatile uint32_t g_fc05_last_checkpoint;
+extern volatile uint32_t g_fc05_pass;
+
+void fc05_checkpoint_committed( uint32_t point, const void * subject );
+void fc05_receiver_entry( void * context );
+void fc05_sender_entry( void * context );
+void fc05_verifier_entry( void * context );
+
+#endif
@@ -0,0 +1,53 @@
+#ifndef TASK01_QUEUE_MODEL_H
+#define TASK01_QUEUE_MODEL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct QueueMessage
+{
+    uint32_t sequence;
+    uint32_t payload;
+    uint32_t checksum;
+} QueueMessage;
+
+typedef struct QueueEvidence
+{
+    uint32_t sequence;
+    uint32_t event;
+    uint32_t tick;
+    uint32_t actor;
+    uint32_t value;
+    uint32_t committed;
+} QueueEvidence;
+
+static inline uint32_t fc05_message_checksum( uint32_t sequence,
+                                               uint32_t payload )
+{
+    return 0x51000000U ^ sequence ^ payload;
+}
+
+static inline int fc05_message_is_valid( const QueueMessage * message )
+{
+    return message != NULL &&
+           message->checksum ==
+               fc05_message_checksum( message->sequence, message->payload );
+}
+
+static inline uint32_t fc05_digest( const QueueEvidence * events,
+                                     size_t count )
+{
+    uint32_t hash = 2166136261U;
+    size_t index;
+
+    for( index = 0U; index < count; ++index )
+    {
+        hash = ( hash ^ events[ index ].event ) * 16777619U;
+        hash = ( hash ^ events[ index ].actor ) * 16777619U;
+        hash = ( hash ^ events[ index ].value ) * 16777619U;
+        hash = ( hash ^ events[ index ].committed ) * 16777619U;
+    }
+    return hash;
+}
+
+#endif