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Change the build system to CMake

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This commit is contained in:
Attila Body 2025-06-09 10:04:03 +02:00
parent fba93a37f7
commit 28502efcb4
Signed by: abody
GPG key ID: BD0C6214E68FB5CF
35 changed files with 1318 additions and 1225 deletions
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33
.clang-format Normal file
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BasedOnStyle: LLVM
UseTab: Never
IndentWidth: 4
TabWidth: 4
BreakBeforeBraces: Custom
AllowShortFunctionsOnASingleLine: Inline
AllowShortIfStatementsOnASingleLine: true
AllowShortLambdasOnASingleLine: true
AllowAllArgumentsOnNextLine: true
IndentCaseLabels: true
AccessModifierOffset: -4
NamespaceIndentation: None
FixNamespaceComments: false
PackConstructorInitializers: Never
AlignAfterOpenBracket: AlwaysBreak
InsertBraces: true
BraceWrapping:
AfterClass: true # false
AfterControlStatement: false
AfterEnum: false # false
AfterFunction: true # false
AfterNamespace: false
AfterObjCDeclaration: true # false
AfterStruct: true # false
AfterUnion: true # false
AfterExternBlock: false
BeforeCatch: false
BeforeElse: false
IndentBraces: false
SplitEmptyFunction: true
SplitEmptyRecord: true
SplitEmptyNamespace: true
ColumnLimit: 140

19
CMakeLists.txt Normal file
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add_library(f4ll STATIC
src/console_handler.cpp
src/crc_handler.cpp
src/dma_helper.cpp
src/fault.cpp
src/memcpy_dma.cpp
src/packet_usart.cpp
src/str_util.cpp
src/usart_core.cpp
)
target_include_directories(f4ll PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/inc
)
target_link_libraries(f4ll PUBLIC platform stm32cubemx)
# ST code quality workaround - Suppres register storage class warning (C++17...)
target_compile_options(f4ll PRIVATE -Wno-register)

11
component.mk
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#encoder
SELF_DIR := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
REL_DIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
ifeq ($(MKDBG), 1)
$(info >>> $(REL_DIR)/component.mk)
endif
$(eval C_INCLUDES += -I$(REL_DIR)/inc)
$(eval CXX_SOURCES += $(wildcard $(REL_DIR)/src/*.cpp))
ifeq ($(MKDBG), 1)
$(info <<<)
endif

44
inc/f4ll/console_handler.h Normal file
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/*
* ll_consolehandler.h
*
* Created on: Nov 7, 2019
* Author: abody
*/
#ifndef LL_CONSOLEHANDLER_H_
#define LL_CONSOLEHANDLER_H_
#include <f4ll/packet_usart.h>
#include <f4ll/singleton.h>
namespace f4ll {
class console_handler : public usart_core, public singleton<console_handler>
{
friend class singleton<console_handler>;
public:
void PrintStats(uint8_t id, packet_usart &usart);
private:
console_handler(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx);
// LL_UsartCore pure virtual function implementations
virtual void receiver_idle(void) override;
virtual void transmission_complete(void) override;
virtual void framing_error(void) override;
virtual void overrun(void) override;
virtual void rx_dma_transfer_complete(void) override;
virtual void rx_dma_half_transfer(void) override;
virtual void rx_dma_error(dma_helper::dma_error_type reason) override;
virtual void tx_dma_transfer_complete(void) override;
virtual void tx_dma_half_transfer(void) override;
virtual void tx_dma_error(dma_helper::dma_error_type reason) override;
char m_buffer[128];
uint16_t m_used = 0;
};
} /* namespace f4ll */
#endif /* LL_CONSOLEHANDLER_H_ */

45
inc/f4ll/consolehandler.h
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/*
* ll_consolehandler.h
*
* Created on: Nov 7, 2019
* Author: abody
*/
#ifndef LL_CONSOLEHANDLER_H_
#define LL_CONSOLEHANDLER_H_
#include "f4ll/packetusart.h"
#include "singleton.h"
namespace f4ll {
class ConsoleHandler: public UsartCore, public Singleton<ConsoleHandler>
{
friend class Singleton<ConsoleHandler>;
public:
void PrintStats(uint8_t id, PacketUsart &usart);
private:
ConsoleHandler(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx);
// LL_UsartCore pure virtual function implementations
virtual void ReceiverIdle(void);
virtual void TransmissionComplete(void);
virtual void FramingError(void);
virtual void Overrun(void);
virtual void RxDmaTransferComplete(void);
virtual void RxDmaHalfTransfer(void);
virtual void RxDmaError(DmaHelper::DmaErrorType reason);
virtual void TxDmaTransferComplete(void);
virtual void TxDmaHalfTransfer(void);
virtual void TxDmaError(DmaHelper::DmaErrorType reason);
char m_buffer[128];
uint16_t m_used = 0;
};
} /* namespace f4ll */
#endif /* LL_CONSOLEHANDLER_H_ */

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inc/f4ll/crc_handler.h Normal file
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/*
* ll_crc_handler.h
*
* Created on: Oct 26, 2019
* Author: compi
*/
#pragma once
#include <f4ll/dma_helper.h>
#include <f4ll/singleton.h>
#include <inttypes.h>
#include <platform/dma_ll.h>
namespace f4ll {
class crc_handler : public singleton<crc_handler>
{
friend class singleton<crc_handler>;
public:
struct icallback
{
virtual void crc_succeeded(uintptr_t callback_param, uint32_t crc, uint8_t task) = 0;
virtual void crc_failed(uintptr_t callback_param, uint32_t crc, uint8_t task) = 0;
};
class slot_base
{
friend class crc_handler;
public:
struct crc_task
{
void const *m_address; // changed to nullptr when execution starts
uint16_t m_word_count;
icallback *m_callback;
uintptr_t m_callback_param;
};
private:
slot_base volatile *m_next = nullptr;
uint8_t m_task_count;
virtual crc_task volatile &operator[](int index) volatile = 0;
protected:
slot_base(unsigned int task_count)
: m_task_count(task_count)
{
}
slot_base() = delete;
slot_base(slot_base const &other) = delete;
};
template <uint8_t n> class slot : public slot_base
{
public:
slot()
: slot_base(n)
{
}
virtual crc_task volatile &operator[](int index) volatile { return m_tasks[index]; }
private:
slot::crc_task m_tasks[n];
};
void attach_slot(slot_base &slot);
bool enqueue(slot_base &slot, uint8_t task, void const *address, uint16_t len, icallback *cb, uintptr_t cb_param);
uint32_t compute(slot_base &slot, uint8_t task, void const *address, uint16_t len);
bool is_active(slot_base &slot, uint8_t task) const;
bool is_queued(slot_base &slot, uint8_t task) const;
bool is_running(slot_base &slot, uint8_t task) const;
void dma_transfer_completed(void);
private:
crc_handler(DMA_TypeDef *dma, uint32_t stream);
void start_next_task(void);
void wait_results(slot_base &slot, uint8_t task) const;
dma_helper m_dma;
slot_base volatile *m_first_slot = nullptr;
slot_base volatile *m_active_slot = nullptr;
int volatile m_active_task;
};
} // namespace f4ll

89
inc/f4ll/crchandler.h
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/*
* ll_crchandler.h
*
* Created on: Oct 26, 2019
* Author: compi
*/
#ifndef LL_CRCHANDLER_H_
#define LL_CRCHANDLER_H_
#include <inttypes.h>
#include <platform/dma_ll.h>
#include "f4ll/dmahelper.h"
#include "singleton.h"
extern "C" void _HandleCrcDmaIrq(void);
namespace f4ll {
class CrcHandler : public Singleton<CrcHandler>
{
friend class Singleton<CrcHandler>;
public:
struct ICallback
{
virtual void CrcSucceeded(uintptr_t callbackParam, uint32_t crc, uint8_t task) = 0;
virtual void CrcFailed(uintptr_t callbackParam, uint32_t crc, uint8_t task) = 0;
};
class SlotBase
{
friend class CrcHandler;
public:
struct CrcTask {
void const * m_address; // changed to nullptr when execution starts
uint16_t m_wordCount;
ICallback *m_callback;
uintptr_t m_callbackParam;
};
private:
SlotBase volatile *m_next = nullptr;
uint8_t m_taskCount;
virtual CrcTask volatile & operator[](int index) volatile = 0;
protected:
SlotBase(unsigned int taskCount) : m_taskCount(taskCount) {}
SlotBase() = delete;
SlotBase(SlotBase const &other) = delete;
};
template <uint8_t n> class Slot : public SlotBase
{
public:
Slot() : SlotBase(n) {}
virtual CrcTask volatile & operator[](int index) volatile { return m_tasks[index]; }
private:
Slot::CrcTask m_tasks[n];
};
void AttachSlot(SlotBase &slot);
bool Enqueue(SlotBase &slot, uint8_t task, void const *address, uint16_t len, ICallback *cb, uintptr_t cbParam);
uint32_t Compute(SlotBase &slot, uint8_t task, void const *address, uint16_t len);
bool IsActive(SlotBase &slot, uint8_t task) const;
bool IsQueued(SlotBase &slot, uint8_t task) const;
bool IsRunning(SlotBase &slot, uint8_t task) const;
void DmaTransferCompleted(void);
private:
CrcHandler(DMA_TypeDef *dma, uint32_t stream);
friend void ::_HandleCrcDmaIrq(void);
void StartNextTask(void);
void WaitResults(SlotBase &slot, uint8_t task) const;
DmaHelper m_dma;
SlotBase volatile *m_firstSlot = nullptr;
SlotBase volatile *m_activeSlot = nullptr;
int volatile m_activeTask;
};
} // namespace f4ll
#endif /* LL_CRCHANDLER_H_ */

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inc/f4ll/dma_helper.h Normal file
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/*
* ll_dmahelper.h
*
* Created on: Oct 25, 2019
* Author: abody
*/
#ifndef LL_DMAHELPER_H_
#define LL_DMAHELPER_H_
#include <inttypes.h>
#include <platform/dma_ll.h>
namespace f4ll {
class dma_helper
{
public:
dma_helper(DMA_TypeDef *dma, uint32_t stream);
dma_helper(dma_helper const &base) = default;
inline DMA_TypeDef *get_dma() const { return m_dma; }
inline uint32_t get_stream() const { return m_stream; }
inline volatile uint32_t *get_is_reg() const { return m_is_reg; }
inline volatile uint32_t *get_ifc_reg() const { return m_ifc_reg; }
inline uint32_t get_fe_mask() const { return m_fe_masks[m_stream]; }
inline uint32_t get_dme_mask() const { return m_dme_masks[m_stream]; }
inline uint32_t get_te_mask() const { return m_te_masks[m_stream]; }
inline uint32_t get_ht_mask() const { return m_ht_masks[m_stream]; }
inline uint32_t get_tc_mask() const { return m_tc_masks[m_stream]; }
inline bool is_enabled_it_ht() const { return LL_DMA_IsEnabledIT_HT(m_dma, m_stream) != 0; }
inline bool is_enabled_it_te() const { return LL_DMA_IsEnabledIT_TE(m_dma, m_stream) != 0; }
inline bool is_enabled_it_tc() const { return LL_DMA_IsEnabledIT_TC(m_dma, m_stream) != 0; }
inline bool is_enabled_it_dme() const { return LL_DMA_IsEnabledIT_DME(m_dma, m_stream) != 0; }
inline bool is_enabled_it_fe() const { return LL_DMA_IsEnabledIT_FE(m_dma, m_stream) != 0; }
enum class dma_error_type { transfer, direct_mode, fifo };
private:
DMA_TypeDef *m_dma;
uint32_t m_stream;
volatile uint32_t *m_is_reg;
volatile uint32_t *m_ifc_reg;
static constexpr uint32_t const m_fe_masks[8] = {DMA_LISR_FEIF0, DMA_LISR_FEIF1, DMA_LISR_FEIF2, DMA_LISR_FEIF3,
DMA_HISR_FEIF4, DMA_HISR_FEIF5, DMA_HISR_FEIF6, DMA_HISR_FEIF7};
static constexpr uint32_t const m_dme_masks[8] = {DMA_LISR_DMEIF0, DMA_LISR_DMEIF1, DMA_LISR_DMEIF2, DMA_LISR_DMEIF3,
DMA_HISR_DMEIF4, DMA_HISR_DMEIF5, DMA_HISR_DMEIF6, DMA_HISR_DMEIF7};
static constexpr uint32_t const m_te_masks[8] = {DMA_LISR_TEIF0, DMA_LISR_TEIF1, DMA_LISR_TEIF2, DMA_LISR_TEIF3,
DMA_HISR_TEIF4, DMA_HISR_TEIF5, DMA_HISR_TEIF6, DMA_HISR_TEIF7};
static constexpr uint32_t const m_ht_masks[8] = {DMA_LISR_HTIF0, DMA_LISR_HTIF1, DMA_LISR_HTIF2, DMA_LISR_HTIF3,
DMA_HISR_HTIF4, DMA_HISR_HTIF5, DMA_HISR_HTIF6, DMA_HISR_HTIF7};
static constexpr uint32_t const m_tc_masks[8] = {DMA_LISR_TCIF0, DMA_LISR_TCIF1, DMA_LISR_TCIF2, DMA_LISR_TCIF3,
DMA_HISR_TCIF4, DMA_HISR_TCIF5, DMA_HISR_TCIF6, DMA_HISR_TCIF7};
};
} /* namespace f4ll */
#endif /* LL_DMAHELPER_H_ */

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inc/f4ll/dmahelper.h
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/*
* ll_dmahelper.h
*
* Created on: Oct 25, 2019
* Author: abody
*/
#ifndef LL_DMAHELPER_H_
#define LL_DMAHELPER_H_
#include <inttypes.h>
#include <platform/dma_ll.h>
namespace f4ll {
class DmaHelper {
public:
DmaHelper(DMA_TypeDef *dma, uint32_t stream);
DmaHelper(DmaHelper const &base) = default;
inline DMA_TypeDef* GetDma() const { return m_dma; }
inline uint32_t GetStream() const { return m_stream; }
inline volatile uint32_t* GetIsReg() const { return m_isReg; }
inline volatile uint32_t* GetIfcReg() const { return m_ifcReg; }
inline uint32_t GetFeMask() const { return m_FEMasks[m_stream]; }
inline uint32_t GetDmeMask() const { return m_DMEMasks[m_stream]; }
inline uint32_t GetTeMask() const { return m_TEMasks[m_stream]; }
inline uint32_t GetHtMask() const { return m_HTMasks[m_stream]; }
inline uint32_t GetTcMask() const { return m_TCMasks[m_stream]; }
inline bool IsEnabledIt_HT() { return LL_DMA_IsEnabledIT_HT(m_dma, m_stream) != 0; }
inline bool IsEnabledIt_TE() { return LL_DMA_IsEnabledIT_TE(m_dma, m_stream) != 0; }
inline bool IsEnabledIt_TC() { return LL_DMA_IsEnabledIT_TC(m_dma, m_stream) != 0; }
inline bool IsEnabledIt_DME() { return LL_DMA_IsEnabledIT_DME(m_dma, m_stream) != 0; }
inline bool IsEnabledIt_FE() { return LL_DMA_IsEnabledIT_FE(m_dma, m_stream) != 0; }
enum class DmaErrorType {
Transfer,
DirectMode,
Fifo
};
private:
DMA_TypeDef *m_dma;
uint32_t m_stream;
volatile uint32_t *m_isReg;
volatile uint32_t *m_ifcReg;
static const uint32_t m_FEMasks[8];
static const uint32_t m_DMEMasks[8];
static const uint32_t m_TEMasks[8];
static const uint32_t m_HTMasks[8];
static const uint32_t m_TCMasks[8];
};
} /* namespace f4ll */
#endif /* LL_DMAHELPER_H_ */

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inc/f4ll/fault.h
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@ -10,7 +10,35 @@
extern "C" { extern "C" {
#endif #endif
typedef struct
{
uint32_t R0;
uint32_t R1;
uint32_t R2;
uint32_t R3;
uint32_t R4;
uint32_t R5;
uint32_t R6;
uint32_t R7;
uint32_t R8;
uint32_t R9;
uint32_t R10;
uint32_t R11;
uint32_t R12;
uint32_t SP;
uint32_t LR;
uint32_t PC;
uint32_t xPSR;
uint32_t PSP;
uint32_t MSP;
uint32_t EXC_RETURN;
uint32_t CONTROL;
} fault_context_t;
extern fault_context_t g_fault_context;
void app_fault_callback(uint32_t reason); void app_fault_callback(uint32_t reason);
__attribute__((noreturn)) void fault_handler(uint32_t type, fault_context_t *context);
#ifdef __cplusplus #ifdef __cplusplus
} }

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inc/f4ll/irq_lock.h Normal file
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#ifndef _IRQLOCK_H_INCLUDED
#define _IRQLOCK_H_INCLUDED
#include <inttypes.h>
#include <stm32f4xx.h>
namespace f4ll {
class irq_lock
{
public:
inline irq_lock()
: m_primask(__get_PRIMASK())
{
__disable_irq();
}
inline void release() { __set_PRIMASK(m_primask); }
inline ~irq_lock() { __set_PRIMASK(m_primask); }
private:
uint32_t m_primask;
};
}
#endif // _IRQLOCK_H_INCLUDED

27
inc/f4ll/irqlock.h
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#ifndef _IRQLOCK_H_INCLUDED
#define _IRQLOCK_H_INCLUDED
#include <inttypes.h>
#include <stm32f4xx.h>
namespace f4ll {
class IrqLock {
public:
inline IrqLock() : m_primask(__get_PRIMASK()) {
__disable_irq();
}
inline void Release() {
__set_PRIMASK(m_primask);
}
inline ~IrqLock() {
__set_PRIMASK(m_primask);
}
private:
uint32_t m_primask;
};
}
#endif // _IRQLOCK_H_INCLUDED

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inc/f4ll/memcpy_dma.h Normal file
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/*
* llmemcpydma.h
*
* Created on: Nov 4, 2019
* Author: abody
*/
#pragma once
#include <f4ll/dma_helper.h>
#include <f4ll/singleton.h>
namespace f4ll {
class memcpy_dma : public singleton<memcpy_dma>, private dma_helper
{
friend class singleton<memcpy_dma>;
public:
void *copy(void *dst, void const *src, uint16_t length);
void dma_transfer_completed();
private:
memcpy_dma(DMA_TypeDef *dma, uint32_t stream);
bool volatile m_busy = false;
};
} /* namespace f4ll */

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inc/f4ll/memcpydma.h
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/*
* llmemcpydma.h
*
* Created on: Nov 4, 2019
* Author: abody
*/
#ifndef LL_MEMCPY_DMA_H_
#define LL_MEMCPY_DMA_H_
#include "f4ll/dmahelper.h"
#include "singleton.h"
namespace f4ll {
class MemcpyDma : public Singleton<MemcpyDma>, private DmaHelper
{
friend class Singleton<MemcpyDma>;
public:
void* Copy(void *dst, void const *src, uint16_t length);
void DmaTransferCompleted();
private:
MemcpyDma(DMA_TypeDef *dma, uint32_t stream);
bool volatile m_busy = false;
};
} /* namespace f4ll */
#endif /* LL_MEMCPY_DMA_H_ */

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inc/f4ll/packet_usart.h Normal file
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/*
* ll_HsUsart.h
*
* Created on: Oct 29, 2019
* Author: abody
*/
#ifndef LL_HSUSART_H_
#define LL_HSUSART_H_
#include <f4ll/crc_handler.h>
#include <f4ll/usart_core.h>
#include <platform/usart_ll.h>
namespace f4ll {
struct DMAINFO;
class packet_usart : public crc_handler::icallback, public usart_core
{
// friend class UsartCore;
public:
packet_usart(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx);
struct packet_header
{ // !!! size should be multiple of 4 !!!
uint8_t start_byte;
uint8_t serial;
uint8_t payload_length;
uint8_t hash;
};
struct packet
{
packet_header header;
uint8_t payload[256 + sizeof(uint32_t)]; // extra room for crc32
} __attribute__((aligned));
struct stats
{
uint32_t overrun = 0;
uint32_t hdr_error = 0;
uint32_t payload_errror = 0;
uint32_t pep1 = 0;
uint32_t pep2 = 0;
uint32_t rx_dma_error = 0;
uint32_t tx_dma_error = 0;
uint32_t rcvd = 0;
uint32_t premature_hdr = 0;
uint32_t premature_payload = 0;
uint32_t sent = 0;
uint32_t skiped = 0;
};
struct ihs_usart_callback
{
virtual bool packet_received(packet_usart *caller, uintptr_t user_param, packet const &packet) = 0;
};
// crc_handler::ICallback interface functions
virtual void crc_succeeded(uintptr_t callback_param, uint32_t crc, uint8_t task) override;
virtual void crc_failed(uintptr_t callback_param, uint32_t crc, uint8_t task) override;
void post_packet(uint8_t const *payload, uint8_t length, bool wait_for_crc_queue = true);
void setup_receive(void);
void rx_processed(bool second);
// Getters
uint8_t *get_tx_packet_buffer(void) { return m_tx_buffer.pkt.payload; }
uint8_t const *get_rx_packet_buffer(bool second) { return m_rx_buffers[second].pkt.payload; }
USART_TypeDef *get_usart(void) const { return m_usart; }
stats const &get_stats(void) const { return m_stats; }
inline bool is_tx_busy(void) const { return m_tx_buffer.busy; }
inline bool is_tx_failed(void) const { return m_tx_buffer.error; }
inline bool is_rx_busy(bool second) const { return m_rx_buffers[second].busy; }
inline bool is_rx_failed(bool second) const { return m_rx_buffers[second].error; }
void set_callback(ihs_usart_callback *callback, uintptr_t callback_param);
private:
void build_header(packet &packet, uint8_t serial_nr, uint8_t length);
bool check_header(packet_header &header);
void switch_rx_buffers(void);
// UsartCore pure virtual function implementations
virtual void receiver_idle(void) override;
virtual void transmission_complete(void) override;
virtual void framing_error(void) override;
virtual void overrun(void) override;
virtual void rx_dma_transfer_complete(void) override;
virtual void rx_dma_half_transfer(void) override;
virtual void rx_dma_error(dma_helper::dma_error_type reason) override;
virtual void tx_dma_transfer_complete(void) override;
virtual void tx_dma_half_transfer(void) override;
virtual void tx_dma_error(dma_helper::dma_error_type reason) override;
struct Buffer
{
packet pkt;
// transfer area ends here
bool volatile busy = 0;
bool volatile error = 0;
uint16_t requested_length = 0;
uint32_t error_info = 0;
};
static const uint8_t STARTMARKER = 0x95;
uint8_t m_rx_serial_nr = -1;
uint8_t m_tx_serial_nr = -1;
stats m_stats;
bool m_rx_buffer_selector = false;
crc_handler::slot<2> m_crc_slot;
ihs_usart_callback *m_user_callback = nullptr;
uintptr_t m_user_callback_param = 0;
Buffer m_tx_buffer;
Buffer m_rx_buffers[2];
};
}
#endif /* LL_HSUSART_H_ */

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inc/f4ll/packetusart.h
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/*
* ll_HsUsart.h
*
* Created on: Oct 29, 2019
* Author: abody
*/
#ifndef LL_HSUSART_H_
#define LL_HSUSART_H_
#include <platform/usart_ll.h>
#include "f4ll/usartcore.h"
#include "f4ll/crchandler.h"
namespace f4ll {
struct DMAINFO;
class PacketUsart : public CrcHandler::ICallback, public UsartCore
{
// friend class UsartCore;
public:
PacketUsart(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx);
struct PacketHeader { // !!! size should be multiple of 4 !!!
uint8_t startByte;
uint8_t serial;
uint8_t payloadLength;
uint8_t hash;
};
struct Packet {
PacketHeader header;
uint8_t payload[256+sizeof(uint32_t)]; // extra room for crc32
} __attribute__((aligned));
struct Stats {
uint32_t overrun = 0;
uint32_t hdrError = 0;
uint32_t payloadErrror = 0;
uint32_t pep1 = 0;
uint32_t pep2 = 0;
uint32_t rxDmaError = 0;
uint32_t txDmaError = 0;
uint32_t rcvd = 0;
uint32_t premature_hdr = 0;
uint32_t premature_payload = 0;
uint32_t sent = 0;
uint32_t skiped = 0;
};
struct IHsUsartCallback {
virtual bool PacketReceived(PacketUsart *caller, uintptr_t userParam, Packet const &packet) = 0;
};
// CRCHandler::ICallback interface functions
virtual void CrcSucceeded(uintptr_t callbackParam, uint32_t crc, uint8_t task);
virtual void CrcFailed(uintptr_t callbackParam, uint32_t crc, uint8_t task);
void PostPacket(uint8_t const *payload, uint8_t length, bool waitForCrcQueue = true);
void SetupReceive(void);
void RxProcessed(bool second);
// Getters
uint8_t* GetTxPacketBuffer(void) { return m_txBuffer.packet.payload; }
uint8_t const * GetRxPacketBuffer(bool second) { return m_rxBuffers[second].packet.payload; }
USART_TypeDef* GetUsart(void) const { return m_usart; }
Stats const & GetStats(void) const { return m_stats; }
inline bool IsTxBusy(void) const { return m_txBuffer.busy; }
inline bool IsTxFailed(void) const { return m_txBuffer.error; }
inline bool IsRxBusy(bool second) const { return m_rxBuffers[second].busy; }
inline bool IsRxFailed(bool second) const { return m_rxBuffers[second].error; }
void SetCallback(IHsUsartCallback* callback, uintptr_t callbackParam);
private:
void BuildHeader(Packet &packet, uint8_t serialNo, uint8_t length);
bool CheckHeader(PacketHeader &header);
void SwitchRxBuffers(void);
// UsartCore pure virtual function implementations
virtual void ReceiverIdle(void);
virtual void TransmissionComplete(void);
virtual void FramingError(void);
virtual void Overrun(void);
virtual void RxDmaTransferComplete(void);
virtual void RxDmaHalfTransfer(void);
virtual void RxDmaError(DmaHelper::DmaErrorType reason);
virtual void TxDmaTransferComplete(void);
virtual void TxDmaHalfTransfer(void);
virtual void TxDmaError(DmaHelper::DmaErrorType reason);
struct Buffer {
Packet packet;
//transfer area ends here
bool volatile busy = 0;
bool volatile error = 0;
uint16_t requestedLength = 0;
uint32_t errorInfo = 0;
};
static const uint8_t STARTMARKER = 0x95;
uint8_t m_rxSerialNo = -1;
uint8_t m_txSerialNo = -1;
Stats m_stats;
bool m_rxBufferSelector = false;
CrcHandler::Slot<2> m_crcSlot;
IHsUsartCallback *m_userCallback = nullptr;
uintptr_t m_userCallbackParam = 0;
Buffer m_txBuffer;
Buffer m_rxBuffers[2];
};
}
#endif /* LL_HSUSART_H_ */

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#ifndef SINGLETON_H_
#define SINGLETON_H_
#include <utility>
namespace f4ll {
template <typename T> class singleton
{
public:
static T &instance()
{
return *m_instance;
}
template <typename... args_t> static T &init(args_t &&...args)
{
static T instance{std::forward<args_t>(args)...};
m_instance = &instance;
return instance;
}
protected:
singleton() = default;
singleton(const singleton &) = delete;
singleton &operator=(const singleton &) = delete;
static T *m_instance;
};
template <typename T> T *singleton<T>::m_instance = nullptr;
} // namespace f1ll {
#endif /* SINGLETON_H_ */

0
inc/f4ll/strutil.h → inc/f4ll/str_util.h
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/*
* ll_dmadrivenusartcore.h
*
* Created on: Nov 4, 2019
* Author: abody
*/
#ifndef LL_USARTCORE_H_
#define LL_USARTCORE_H_
#include <platform/usart_ll.h>
#include <f4ll/dma_helper.h>
namespace f4ll {
class usart_core
{
public:
static inline void usart_isr(usart_core *_this) { _this->usart_isr(); }
static inline void rx_dma_isr(usart_core *_this) { _this->rx_dma_isr(); }
static inline void tx_dma_isr(usart_core *_this) { _this->tx_dma_isr(); }
void setup_transmit(void const *buffer, uint16_t length);
void setup_receive(void *buffer, uint16_t length);
protected:
usart_core(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx);
USART_TypeDef *m_usart;
dma_helper m_rx_dma;
dma_helper m_tx_dma;
private:
virtual void receiver_idle(void) = 0;
virtual void transmission_complete(void) = 0;
virtual void framing_error(void) = 0;
virtual void overrun(void) = 0;
virtual void rx_dma_transfer_complete(void) = 0;
virtual void rx_dma_half_transfer(void) = 0;
virtual void rx_dma_error(dma_helper::dma_error_type reason) = 0;
virtual void tx_dma_transfer_complete(void) = 0;
virtual void tx_dma_half_transfer(void) = 0;
virtual void tx_dma_error(dma_helper::dma_error_type reason) = 0;
void usart_isr();
void rx_dma_isr();
void tx_dma_isr();
};
} /* namespace f4ll */
#endif /* LL_USARTCORE_H_ */

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/*
* ll_dmadrivenusartcore.h
*
* Created on: Nov 4, 2019
* Author: abody
*/
#ifndef LL_USARTCORE_H_
#define LL_USARTCORE_H_
#include <platform/usart_ll.h>
#include "f4ll/dmahelper.h"
namespace f4ll {
class UsartCore
{
public:
static inline void HandleUsartIrq(UsartCore *_this) { _this->UsartIsr(); }
static inline void HandleRxDmaIrq(UsartCore *_this) { _this->RxDmaIsr(); }
static inline void HandleTxDmaIrq(UsartCore *_this) { _this->TxDmaIsr(); }
void SetupTransmit(void const *buffer, uint16_t length);
void SetupReceive(void *buffer, uint16_t length);
protected:
UsartCore(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx);
USART_TypeDef *m_usart;
DmaHelper m_rxDma;
DmaHelper m_txDma;
private:
virtual void ReceiverIdle(void) = 0;
virtual void TransmissionComplete(void) = 0;
virtual void FramingError(void) = 0;
virtual void Overrun(void) = 0;
virtual void RxDmaTransferComplete(void) = 0;
virtual void RxDmaHalfTransfer(void) = 0;
virtual void RxDmaError(DmaHelper::DmaErrorType reason) = 0;
virtual void TxDmaTransferComplete(void) = 0;
virtual void TxDmaHalfTransfer(void) = 0;
virtual void TxDmaError(DmaHelper::DmaErrorType reason) = 0;
void UsartIsr();
void RxDmaIsr();
void TxDmaIsr();
};
} /* namespace f4ll */
#endif /* LL_USARTCORE_H_ */

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/*
* ll_consolehandler.cpp
*
* Created on: Nov 7, 2019
* Author: abody
*/
#include <f4ll/console_handler.h>
#include <f4ll/str_util.h>
namespace f4ll {
console_handler::console_handler(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx)
: usart_core(usart, dma, stream_rx, stream_tx)
{
}
void console_handler::receiver_idle(void) {}
void console_handler::transmission_complete(void) {}
void console_handler::framing_error(void) {}
void console_handler::overrun(void) {}
void console_handler::rx_dma_transfer_complete(void) {}
void console_handler::rx_dma_half_transfer(void) {}
void console_handler::rx_dma_error(dma_helper::dma_error_type reason)
{
(void)reason;
}
void console_handler::tx_dma_transfer_complete(void)
{
LL_USART_EnableIT_TC(m_usart);
LL_DMA_DisableStream(m_tx_dma.get_dma(), m_tx_dma.get_stream());
}
void console_handler::tx_dma_half_transfer(void) {}
void console_handler::tx_dma_error(dma_helper::dma_error_type reason)
{
(void)reason;
}
#define ADDINFO(b, s, u) \
b += strcpy_ex(b, s); \
b += uitodec(b, u);
void console_handler::PrintStats(uint8_t id, packet_usart &usart)
{
char ids[] = " : ";
char *buffer = m_buffer;
packet_usart::stats const &stats(usart.get_stats());
ids[0] = id + '0';
buffer += strcpy_ex(buffer, ids);
ADDINFO(buffer, " s: ", stats.sent);
ADDINFO(buffer, " r: ", stats.rcvd);
ADDINFO(buffer, " sk: ", stats.skiped);
ADDINFO(buffer, " or: ", stats.overrun);
ADDINFO(buffer, " he: ", stats.hdr_error);
ADDINFO(buffer, " pe: ", stats.payload_errror);
buffer += strcpy_ex(buffer, ",0x");
buffer += uitohex(buffer, stats.pep1, 8);
buffer += strcpy_ex(buffer, ",0x");
buffer += uitohex(buffer, stats.pep2, 8);
ADDINFO(buffer, " rde: ", stats.rx_dma_error);
ADDINFO(buffer, " tde: ", stats.tx_dma_error);
ADDINFO(buffer, " pmh: ", stats.premature_hdr);
ADDINFO(buffer, " pmp: ", stats.premature_payload);
buffer += strcpy_ex(buffer, "\r\n");
setup_transmit(m_buffer, buffer - m_buffer + 1);
}
} /* namespace f4ll */

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/*
* ll_consolehandler.cpp
*
* Created on: Nov 7, 2019
* Author: abody
*/
#include "f4ll/consolehandler.h"
#include "f4ll/strutil.h"
namespace f4ll {
ConsoleHandler::ConsoleHandler(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx)
: UsartCore(usart, dma, streamRx, streamTx)
{
}
void ConsoleHandler::ReceiverIdle(void) {}
void ConsoleHandler::TransmissionComplete(void) {}
void ConsoleHandler::FramingError(void) {}
void ConsoleHandler::Overrun(void) {}
void ConsoleHandler::RxDmaTransferComplete(void) {}
void ConsoleHandler::RxDmaHalfTransfer(void) {}
void ConsoleHandler::RxDmaError(DmaHelper::DmaErrorType reason) {}
void ConsoleHandler::TxDmaTransferComplete(void)
{
LL_USART_EnableIT_TC(m_usart);
LL_DMA_DisableStream(m_txDma.GetDma(), m_txDma.GetStream());
}
void ConsoleHandler::TxDmaHalfTransfer(void) {}
void ConsoleHandler::TxDmaError(DmaHelper::DmaErrorType reason) {}
#define ADDINFO(b,s,u) \
b += strcpy_ex(b,s); \
b += uitodec(b,u);
void ConsoleHandler::PrintStats(uint8_t id, PacketUsart &usart)
{
char ids[] = " : ";
char *buffer = m_buffer;
PacketUsart::Stats const &stats(usart.GetStats());
ids[0] = id + '0';
buffer += strcpy_ex(buffer, ids);
ADDINFO(buffer, " s: ", stats.sent);
ADDINFO(buffer, " r: ", stats.rcvd);
ADDINFO(buffer, " sk: ", stats.skiped);
ADDINFO(buffer, " or: ", stats.overrun);
ADDINFO(buffer, " he: ", stats.hdrError);
ADDINFO(buffer, " pe: ", stats.payloadErrror);
buffer += strcpy_ex(buffer,",0x");
buffer += uitohex(buffer, stats.pep1, 8);
buffer += strcpy_ex(buffer,",0x");
buffer += uitohex(buffer, stats.pep2, 8);
ADDINFO(buffer, " rde: ", stats.rxDmaError);
ADDINFO(buffer, " tde: ", stats.txDmaError);
ADDINFO(buffer, " pmh: ", stats.premature_hdr);
ADDINFO(buffer, " pmp: ", stats.premature_payload);
buffer += strcpy_ex(buffer, "\r\n");
SetupTransmit(m_buffer, buffer - m_buffer + 1);
}
} /* namespace f4ll */

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/*
* ll_crc_handler.cpp
*
* Created on: Oct 26, 2019
* Author: compi
*/
#include <f4ll/crc_handler.h>
namespace f4ll {
crc_handler::crc_handler(DMA_TypeDef *dma, uint32_t stream)
: m_dma(dma, stream)
{
LL_DMA_EnableIT_TC(dma, stream);
LL_DMA_EnableIT_TE(dma, stream);
LL_DMA_SetM2MDstAddress(dma, stream, (uint32_t)&CRC->DR);
}
void crc_handler::attach_slot(slot_base &slot)
{
for (unsigned int i = 0; i < slot.m_task_count; ++i) {
auto &task(slot[i]);
task.m_address = nullptr;
task.m_word_count = 0;
task.m_callback = nullptr;
task.m_callback_param = 0;
}
uint32_t prim = __get_PRIMASK();
__disable_irq();
slot.m_next = m_first_slot;
m_first_slot = &slot;
__set_PRIMASK(prim);
}
bool crc_handler::enqueue(slot_base &slot, uint8_t task, void const *address, uint16_t len, icallback *cb, uintptr_t cb_param)
{
uint32_t prim = __get_PRIMASK();
bool immediate;
// TODO: do we need sanity check here? (is slot attached, is task in range,
// etc...?)
while (is_active(slot, task))
;
__disable_irq();
immediate = m_active_slot == nullptr;
slot[task].m_address = (!immediate) ? address : nullptr;
slot[task].m_word_count = (len + 3) / 4;
slot[task].m_callback = cb;
slot[task].m_callback_param = cb_param;
if (immediate) {
m_active_slot = &slot;
m_active_task = task;
}
__set_PRIMASK(prim);
if (immediate) {
CRC->CR = 1;
LL_DMA_SetM2MSrcAddress(m_dma.get_dma(), m_dma.get_stream(), (uint32_t)address);
LL_DMA_SetDataLength(m_dma.get_dma(), m_dma.get_stream(), (len + 3) / 4);
LL_DMA_EnableStream(m_dma.get_dma(), m_dma.get_stream());
}
return immediate;
}
bool crc_handler::is_active(slot_base &slot, uint8_t task) const
{
return task < slot.m_task_count && slot[task].m_word_count != 0;
}
bool crc_handler::is_queued(slot_base &slot, uint8_t task) const
{
return task < slot.m_task_count && slot[task].m_address != nullptr;
}
bool crc_handler::is_running(slot_base &slot, uint8_t task) const
{
return task < slot.m_task_count && slot[task].m_word_count && !slot[task].m_address;
}
void crc_handler::dma_transfer_completed(void)
{
if (*m_dma.get_is_reg() & m_dma.get_tc_mask()) { // DMA transfer complete
*m_dma.get_ifc_reg() = m_dma.get_tc_mask();
LL_DMA_DisableStream(m_dma.get_dma(), m_dma.get_stream());
if (m_active_slot) {
if ((*m_active_slot)[m_active_task].m_callback) {
(*m_active_slot)[m_active_task].m_callback->crc_succeeded(
(*m_active_slot)[m_active_task].m_callback_param, CRC->DR, m_active_task);
} else if ((*m_active_slot)[m_active_task].m_callback_param) {
*reinterpret_cast<uint32_t *>((*m_active_slot)[m_active_task].m_callback_param) = CRC->DR;
}
}
} else if (*m_dma.get_is_reg() & m_dma.get_te_mask()) { // DMA transfer error
*m_dma.get_ifc_reg() = m_dma.get_te_mask();
LL_DMA_DisableStream(m_dma.get_dma(), m_dma.get_stream());
if (m_active_slot) {
if ((*m_active_slot)[m_active_task].m_callback) {
(*m_active_slot)[m_active_task].m_callback->crc_failed(
(*m_active_slot)[m_active_task].m_callback_param, CRC->DR, m_active_task);
} else if ((*m_active_slot)[m_active_task].m_callback_param) {
*reinterpret_cast<uint32_t *>((*m_active_slot)[m_active_task].m_callback_param) = -1;
}
}
}
(*m_active_slot)[m_active_task].m_callback = nullptr;
(*m_active_slot)[m_active_task].m_callback_param = 0;
(*m_active_slot)[m_active_task].m_word_count = 0;
start_next_task();
}
void crc_handler::start_next_task(void)
{
bool more_tasks;
uint8_t index = 0;
do {
slot_base volatile *slot = m_first_slot;
more_tasks = false;
while (slot) {
if (index < slot->m_task_count) {
if ((*slot)[index].m_address) {
m_active_slot = slot;
m_active_task = index;
CRC->CR = 1;
LL_DMA_SetM2MSrcAddress(m_dma.get_dma(), m_dma.get_stream(), reinterpret_cast<uint32_t>((*slot)[index].m_address));
LL_DMA_SetDataLength(m_dma.get_dma(), m_dma.get_stream(), (*slot)[index].m_word_count);
LL_DMA_EnableStream(m_dma.get_dma(), m_dma.get_stream());
(*slot)[index].m_address = nullptr; // marking as started
return;
}
if (index + 1 < slot->m_task_count) {
more_tasks = true;
}
}
slot = slot->m_next;
}
++index;
} while (more_tasks);
m_active_slot = nullptr;
}
void crc_handler::wait_results(slot_base &slot, uint8_t task) const
{
while (is_queued(slot, task))
;
while (is_active(slot, task))
;
}
uint32_t crc_handler::compute(slot_base &slot, uint8_t task, void const *address, uint16_t len)
{
uint32_t result;
enqueue(slot, task, address, len, nullptr, reinterpret_cast<uintptr_t>(&result));
while (is_active(slot, task))
;
return result;
}
} // namespace f4ll

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/*
* ll_crchandler.cpp
*
* Created on: Oct 26, 2019
* Author: compi
*/
#include "f4ll/crchandler.h"
namespace f4ll {
CrcHandler::CrcHandler(DMA_TypeDef *dma, uint32_t stream)
: m_dma(dma, stream)
{
LL_DMA_EnableIT_TC(dma, stream);
LL_DMA_EnableIT_TE(dma, stream);
LL_DMA_SetM2MDstAddress(dma, stream, (uint32_t)&CRC->DR);
}
void CrcHandler::AttachSlot(SlotBase &slot)
{
for(unsigned int i = 0; i < slot.m_taskCount; ++i ) {
auto &task(slot[i]);
task.m_address = nullptr;
task.m_wordCount = 0;
task.m_callback = nullptr;
task.m_callbackParam = 0;
}
uint32_t prim = __get_PRIMASK();
__disable_irq();
slot.m_next = m_firstSlot;
m_firstSlot = &slot;
__set_PRIMASK(prim);
}
bool CrcHandler::Enqueue(SlotBase &slot, uint8_t task, void const *address, uint16_t len, ICallback *cb, uintptr_t cbParam)
{
uint32_t prim = __get_PRIMASK();
bool immediate;
// TODO: do we need sanity check here? (is slot attached, is task in range, etc...?)
while(IsActive(slot,task));
__disable_irq();
immediate = m_activeSlot == nullptr;
slot[task].m_address = (!immediate) ? address : nullptr;
slot[task].m_wordCount = (len+3)/4;
slot[task].m_callback = cb;
slot[task].m_callbackParam = cbParam;
if(immediate) {
m_activeSlot = &slot;
m_activeTask = task;
}
__set_PRIMASK(prim);
if(immediate) {
CRC->CR = 1;
LL_DMA_SetM2MSrcAddress(m_dma.GetDma(), m_dma.GetStream(), (uint32_t)address);
LL_DMA_SetDataLength(m_dma.GetDma(), m_dma.GetStream(), (len+3)/4);
LL_DMA_EnableStream(m_dma.GetDma(), m_dma.GetStream());
}
return immediate;
}
bool CrcHandler::IsActive(SlotBase &slot, uint8_t task) const
{
return task < slot.m_taskCount && slot[task].m_wordCount != 0;
}
bool CrcHandler::IsQueued(SlotBase &slot, uint8_t task) const
{
return task < slot.m_taskCount && slot[task].m_address != nullptr;
}
bool CrcHandler::IsRunning(SlotBase &slot, uint8_t task) const
{
return task < slot.m_taskCount && slot[task].m_wordCount && ! slot[task].m_address;
}
void CrcHandler::DmaTransferCompleted(void)
{
if(* m_dma.GetIsReg() & m_dma.GetTcMask()) { // DMA transfer complete
* m_dma.GetIfcReg() = m_dma.GetTcMask();
LL_DMA_DisableStream(m_dma.GetDma(), m_dma.GetStream());
if(m_activeSlot) {
if((*m_activeSlot)[m_activeTask].m_callback)
(*m_activeSlot)[m_activeTask].m_callback->CrcSucceeded((*m_activeSlot)[m_activeTask].m_callbackParam, CRC->DR, m_activeTask);
else if((*m_activeSlot)[m_activeTask].m_callbackParam)
*reinterpret_cast<uint32_t*>((*m_activeSlot)[m_activeTask].m_callbackParam) = CRC->DR;
}
}
else if(*m_dma.GetIsReg() & m_dma.GetTeMask()) { // DMA transfer error
*m_dma.GetIfcReg() = m_dma.GetTeMask();
LL_DMA_DisableStream(m_dma.GetDma(), m_dma.GetStream());
if(m_activeSlot) {
if((*m_activeSlot)[m_activeTask].m_callback)
(*m_activeSlot)[m_activeTask].m_callback->CrcFailed((*m_activeSlot)[m_activeTask].m_callbackParam, CRC->DR, m_activeTask);
else if((*m_activeSlot)[m_activeTask].m_callbackParam)
*reinterpret_cast<uint32_t*>((*m_activeSlot)[m_activeTask].m_callbackParam) = -1;
}
}
(*m_activeSlot)[m_activeTask].m_callback = nullptr;
(*m_activeSlot)[m_activeTask].m_callbackParam = 0;
(*m_activeSlot)[m_activeTask].m_wordCount = 0;
StartNextTask();
}
void CrcHandler::StartNextTask(void)
{
bool moreTasks;
uint8_t index = 0;
do {
SlotBase volatile *slot = m_firstSlot;
moreTasks = false;
while(slot) {
if(index < slot->m_taskCount) {
if((*slot)[index].m_address) {
m_activeSlot = slot;
m_activeTask = index;
CRC->CR = 1;
LL_DMA_SetM2MSrcAddress(m_dma.GetDma(), m_dma.GetStream(), reinterpret_cast<uint32_t>((*slot)[index].m_address));
LL_DMA_SetDataLength(m_dma.GetDma(), m_dma.GetStream(), (*slot)[index].m_wordCount);
LL_DMA_EnableStream(m_dma.GetDma(), m_dma.GetStream());
(*slot)[index].m_address = nullptr; // marking as started
return;
}
if(index + 1 < slot->m_taskCount)
moreTasks = true;
}
slot = slot->m_next;
}
++index;
} while(moreTasks);
m_activeSlot = nullptr;
}
void CrcHandler::WaitResults(SlotBase &slot, uint8_t task) const
{
while(IsQueued(slot, task));
while(IsActive(slot, task));
}
uint32_t CrcHandler::Compute(
SlotBase &slot, uint8_t task, void const *address, uint16_t len)
{
uint32_t result;
Enqueue(slot, task, address, len, nullptr, reinterpret_cast<uintptr_t>(&result));
while(IsActive(slot, task));
return result;
}
} // namespace f4ll

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/*
q * ll_dmahelper.cpp
*
* Created on: Oct 25, 2019
* Author: abody
*/
#include <f4ll/dma_helper.h>
namespace f4ll {
dma_helper::dma_helper(DMA_TypeDef *dma, uint32_t stream)
: m_dma(dma),
m_stream(stream),
m_is_reg(
(dma == DMA1) ? ((m_stream < LL_DMA_STREAM_4) ? &DMA1->LISR : &DMA1->HISR)
: ((m_stream < LL_DMA_STREAM_4) ? &DMA2->LISR : &DMA2->HISR)),
m_ifc_reg(
(dma == DMA1) ? ((m_stream < LL_DMA_STREAM_4) ? &DMA1->LIFCR : &DMA1->HIFCR)
: ((m_stream < LL_DMA_STREAM_4) ? &DMA2->LIFCR : &DMA2->HIFCR))
{
}
} /* namespace f4ll */

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src/dmahelper.cpp
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/*
q * ll_dmahelper.cpp
*
* Created on: Oct 25, 2019
* Author: abody
*/
#include "f4ll/dmahelper.h"
namespace f4ll {
const uint32_t DmaHelper::m_FEMasks[8] = {DMA_LISR_FEIF0, DMA_LISR_FEIF1, DMA_LISR_FEIF2, DMA_LISR_FEIF3, DMA_HISR_FEIF4, DMA_HISR_FEIF5, DMA_HISR_FEIF6, DMA_HISR_FEIF7};
const uint32_t DmaHelper::m_DMEMasks[8] = {DMA_LISR_DMEIF0, DMA_LISR_DMEIF1, DMA_LISR_DMEIF2, DMA_LISR_DMEIF3, DMA_HISR_DMEIF4, DMA_HISR_DMEIF5, DMA_HISR_DMEIF6, DMA_HISR_DMEIF7};
const uint32_t DmaHelper::m_TEMasks[8] = {DMA_LISR_TEIF0, DMA_LISR_TEIF1, DMA_LISR_TEIF2, DMA_LISR_TEIF3, DMA_HISR_TEIF4, DMA_HISR_TEIF5, DMA_HISR_TEIF6, DMA_HISR_TEIF7};
const uint32_t DmaHelper::m_HTMasks[8] = {DMA_LISR_HTIF0, DMA_LISR_HTIF1, DMA_LISR_HTIF2, DMA_LISR_HTIF3, DMA_HISR_HTIF4, DMA_HISR_HTIF5, DMA_HISR_HTIF6, DMA_HISR_HTIF7};
const uint32_t DmaHelper::m_TCMasks[8] = {DMA_LISR_TCIF0, DMA_LISR_TCIF1, DMA_LISR_TCIF2, DMA_LISR_TCIF3, DMA_HISR_TCIF4, DMA_HISR_TCIF5, DMA_HISR_TCIF6, DMA_HISR_TCIF7};
DmaHelper::DmaHelper(DMA_TypeDef *dma, uint32_t stream)
: m_dma(dma)
, m_stream(stream)
, m_isReg((dma == DMA1) ? ((m_stream < LL_DMA_STREAM_4) ? &DMA1->LISR : &DMA1->HISR) : ((m_stream < LL_DMA_STREAM_4) ? &DMA2->LISR : &DMA2->HISR))
, m_ifcReg((dma == DMA1) ? ((m_stream < LL_DMA_STREAM_4) ? &DMA1->LIFCR : &DMA1->HIFCR) : ((m_stream < LL_DMA_STREAM_4) ? &DMA2->LIFCR : &DMA2->HIFCR))
{
}
} /* namespace f4ll */

52
src/fault.cpp
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@ -7,45 +7,22 @@
*/ */
#include <inttypes.h> #include <inttypes.h>
//#include <core_cm4.h> //#include <core_cm4.h>
#include "stm32f4xx.h" #include <f4ll/fault.h>
#include "f4ll/strutil.h" #include <f4ll/str_util.h>
#include "f4ll/fault.h" #include <stm32f4xx.h>
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
typedef struct { fault_context_t g_fault_context;
uint32_t R0;
uint32_t R1;
uint32_t R2;
uint32_t R3;
uint32_t R4;
uint32_t R5;
uint32_t R6;
uint32_t R7;
uint32_t R8;
uint32_t R9;
uint32_t R10;
uint32_t R11;
uint32_t R12;
uint32_t SP;
uint32_t LR;
uint32_t PC;
uint32_t xPSR;
uint32_t PSP;
uint32_t MSP;
uint32_t EXC_RETURN;
uint32_t CONTROL;
} fault_context_t;
fault_context_t g_faultContext;
void __attribute__((weak)) app_fault_callback(uint32_t reason) void __attribute__((weak)) app_fault_callback(uint32_t reason)
{ {
(void)reason;
} }
void SwoSendStr(char const *str, uint8_t len, uint8_t port) void swo_send_str(char const *str, uint8_t len, uint8_t port)
{ {
while(len) { while(len) {
if (((ITM->TCR & ITM_TCR_ITMENA_Msk) != 0UL) && // ITM enabled if (((ITM->TCR & ITM_TCR_ITMENA_Msk) != 0UL) && // ITM enabled
@ -76,24 +53,23 @@ void SwoSendStr(char const *str, uint8_t len, uint8_t port)
void fault_print_str(char const *fmtstr, uint32_t *values) void fault_print_str(char const *fmtstr, uint32_t *values)
{ {
char hex_str[9]={0}; char hex_str[9]={0};
char const *nextChunk = fmtstr; char const *next_chunk = fmtstr;
while(*fmtstr) { while(*fmtstr) {
if(*fmtstr == '%') { if(*fmtstr == '%') {
SwoSendStr(nextChunk, fmtstr-nextChunk, 0); swo_send_str(next_chunk, fmtstr - next_chunk, 0);
uitohex(hex_str, *values++, 8); uitohex(hex_str, *values++, 8);
SwoSendStr(hex_str, 8, 0); swo_send_str(hex_str, 8, 0);
nextChunk = fmtstr +1; next_chunk = fmtstr + 1;
} }
++fmtstr; ++fmtstr;
} }
if(nextChunk != fmtstr) if (next_chunk != fmtstr) {
SwoSendStr(nextChunk, fmtstr-nextChunk, 0); swo_send_str(next_chunk, fmtstr - next_chunk, 0);
}
} }
void fault_handler(uint32_t type, fault_context_t *context)
__attribute__((noreturn)) void FaultHandler(uint32_t type, fault_context_t *context)
{ {
uint32_t FSR[9] = { uint32_t FSR[9] = {
SCB->HFSR, SCB->HFSR,

38
src/memcpy_dma.cpp Normal file
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@ -0,0 +1,38 @@
/*
* llmemcpydma.cpp
*
* Created on: Nov 4, 2019
* Author: abody
*/
#include <f4ll/memcpy_dma.h>
namespace f4ll {
memcpy_dma::memcpy_dma(DMA_TypeDef *dma, uint32_t stream)
: dma_helper(dma, stream)
{
LL_DMA_EnableIT_TC(dma, stream);
}
void *memcpy_dma::copy(void *dst, void const *src, uint16_t length)
{
LL_DMA_SetM2MSrcAddress(get_dma(), get_stream(), (uint32_t)src);
LL_DMA_SetM2MDstAddress(get_dma(), get_stream(), (uint32_t)dst);
LL_DMA_SetDataLength(get_dma(), get_stream(), (length + 3) / 4);
m_busy = 1;
LL_DMA_EnableStream(get_dma(), get_stream());
while (m_busy)
;
return dst;
}
void memcpy_dma::dma_transfer_completed()
{
if (*get_is_reg() & get_tc_mask()) { // DMA transfer complete
*get_ifc_reg() = get_tc_mask();
LL_DMA_DisableStream(get_dma(), get_stream());
m_busy = 0;
}
}
} /* namespace f4ll */

37
src/memcpydma.cpp
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@ -1,37 +0,0 @@
/*
* llmemcpydma.cpp
*
* Created on: Nov 4, 2019
* Author: abody
*/
#include "f4ll/memcpydma.h"
namespace f4ll {
MemcpyDma::MemcpyDma(DMA_TypeDef *dma, uint32_t stream)
: DmaHelper(dma, stream)
{
LL_DMA_EnableIT_TC(dma, stream);
}
void* MemcpyDma::Copy(void *dst, void const *src, uint16_t length)
{
LL_DMA_SetM2MSrcAddress(GetDma(), GetStream(), (uint32_t)src);
LL_DMA_SetM2MDstAddress(GetDma(), GetStream(), (uint32_t)dst);
LL_DMA_SetDataLength(GetDma(), GetStream(), (length+3)/4 );
m_busy = 1;
LL_DMA_EnableStream(GetDma(), GetStream());
while(m_busy);
return dst;
}
void MemcpyDma::DmaTransferCompleted()
{
if(*GetIsReg() & GetTcMask()) { // DMA transfer complete
*GetIfcReg() = GetTcMask();
LL_DMA_DisableStream(GetDma(), GetStream());
m_busy = 0;
}
}
} /* namespace f4ll */

212
src/packet_usart.cpp Normal file
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@ -0,0 +1,212 @@
/*
* ll_hsusart_impl.h
*
* Created on: Oct 29, 2019
* Author: abody
*/
#include <f4ll/packet_usart.h>
#include <string.h>
namespace f4ll {
template <typename T> static inline T round_up_to_4(T input)
{
return (input + 3) & (((T)-1) - 3);
}
packet_usart::packet_usart(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t stream_rx, uint32_t stream_tx)
: usart_core(usart, dma, stream_rx, stream_tx)
{
crc_handler::instance().attach_slot(m_crc_slot);
LL_USART_EnableIT_IDLE(usart);
LL_USART_EnableIT_ERROR(usart);
}
void packet_usart::rx_processed(bool second)
{
m_rx_buffers[second].busy = false;
m_rx_buffers[second].error = false;
}
void packet_usart::set_callback(ihs_usart_callback *callback, uintptr_t callback_param)
{
m_user_callback = callback;
m_user_callback_param = callback_param;
}
void packet_usart::post_packet(uint8_t const *payload, uint8_t length, bool wait_for_crc_queue)
{
uint16_t payload_length = round_up_to_4((uint16_t)length);
build_header(m_tx_buffer.pkt, m_tx_serial_nr++, length);
if (payload) {
memcpy(m_tx_buffer.pkt.payload, payload, length);
}
m_tx_buffer.requested_length = sizeof(m_tx_buffer.pkt.header) + payload_length + sizeof(uint32_t);
m_tx_buffer.busy = true;
m_tx_buffer.error = false;
crc_handler::instance().enqueue(
m_crc_slot, 0, &m_tx_buffer.pkt, sizeof(packet_header) + payload_length, nullptr,
reinterpret_cast<uintptr_t>(m_tx_buffer.pkt.payload + payload_length));
while (wait_for_crc_queue && crc_handler::instance().is_queued(m_crc_slot, 0))
;
setup_transmit(&m_tx_buffer.pkt, m_tx_buffer.requested_length);
++m_stats.sent;
}
void packet_usart::setup_receive()
{
m_rx_buffers[m_rx_buffer_selector].requested_length = sizeof(m_rx_buffers[m_rx_buffer_selector].pkt);
usart_core::setup_receive(&m_rx_buffers[m_rx_buffer_selector], sizeof(m_rx_buffers[m_rx_buffer_selector].pkt));
}
//////////////////////////////////////
// UsartCore pure virtual functions //
//////////////////////////////////////
void packet_usart::receiver_idle(void)
{
uint16_t rcvdLen =
m_rx_buffers[m_rx_buffer_selector].requested_length - LL_DMA_GetDataLength(m_rx_dma.get_dma(), m_rx_dma.get_stream());
if (rcvdLen >= sizeof(packet_header)) {
if (check_header(m_rx_buffers[m_rx_buffer_selector].pkt.header)) {
if (rcvdLen >= sizeof(packet_header) + round_up_to_4((uint16_t)m_rx_buffers[m_rx_buffer_selector].pkt.header.payload_length) +
sizeof(uint32_t)) {
LL_DMA_DisableStream(m_rx_dma.get_dma(), m_rx_dma.get_stream());
} else {
++m_stats.premature_payload;
}
} else {
m_rx_buffers[m_rx_buffer_selector].error = 1;
LL_DMA_DisableStream(m_rx_dma.get_dma(), m_rx_dma.get_stream());
}
} else {
++m_stats.premature_hdr;
}
}
void packet_usart::transmission_complete(void)
{
LL_USART_DisableDirectionTx(m_usart); // enforcing an idle frame
LL_USART_EnableDirectionTx(m_usart);
m_tx_buffer.busy = 0;
}
void packet_usart::framing_error(void) {}
void packet_usart::overrun(void) {}
void packet_usart::rx_dma_transfer_complete(void)
{
if (check_header(m_rx_buffers[m_rx_buffer_selector].pkt.header)) {
crc_handler::instance().enqueue(
m_crc_slot, 1, &m_rx_buffers[m_rx_buffer_selector].pkt,
sizeof(packet_header) + round_up_to_4((uint16_t)m_rx_buffers[m_rx_buffer_selector].pkt.header.payload_length), this,
m_rx_buffer_selector);
} else {
++m_stats.hdr_error;
m_rx_buffers[m_rx_buffer_selector].error = true;
}
switch_rx_buffers();
}
void packet_usart::rx_dma_half_transfer(void) {}
void packet_usart::rx_dma_error(dma_helper::dma_error_type reason)
{
(void)reason;
m_rx_buffers[m_rx_buffer_selector].error = 1;
++m_stats.rx_dma_error;
switch_rx_buffers();
}
void packet_usart::tx_dma_transfer_complete(void)
{
LL_USART_EnableIT_TC(m_usart);
LL_DMA_DisableStream(m_tx_dma.get_dma(), m_tx_dma.get_stream());
}
void packet_usart::tx_dma_half_transfer(void) {}
void packet_usart::tx_dma_error(dma_helper::dma_error_type reason)
{
(void)reason;
m_tx_buffer.error = 1;
++m_stats.tx_dma_error;
}
///////////////////////
// Private functions //
///////////////////////
void packet_usart::build_header(packet &packet, uint8_t serial_nr, uint8_t length)
{
uint8_t hash = STARTMARKER;
packet.header.start_byte = STARTMARKER;
packet.header.serial = serial_nr;
hash ^= serial_nr;
packet.header.payload_length = length;
hash ^= length;
packet.header.hash = hash;
}
bool packet_usart::check_header(packet_header &header)
{
return header.start_byte == STARTMARKER && (header.start_byte ^ header.serial ^ header.payload_length) == header.hash;
}
void packet_usart::switch_rx_buffers(void)
{
++m_stats.rcvd;
m_rx_buffer_selector = !m_rx_buffer_selector;
if (m_rx_buffers[m_rx_buffer_selector].busy) {
++m_stats.overrun;
}
setup_receive();
}
///////////////////////////
// crc_handler::ICallback //
///////////////////////////
void packet_usart::crc_succeeded(uintptr_t callback_param, uint32_t crc, uint8_t task)
{
(void)task;
Buffer &buf(m_rx_buffers[static_cast<int>(callback_param)]);
buf.busy = 1;
if (*(uint32_t *)(buf.pkt.payload + round_up_to_4((uint16_t)buf.pkt.header.payload_length)) != crc) {
buf.error = 1;
buf.error_info = crc;
++m_stats.payload_errror;
}
if (m_user_callback) {
buf.busy = !m_user_callback->packet_received(this, m_user_callback_param, buf.pkt);
}
}
void packet_usart::crc_failed(uintptr_t callback_param, uint32_t crc, uint8_t task)
{
(void)crc;
(void)task;
Buffer &buf(m_rx_buffers[static_cast<int>(callback_param)]);
buf.busy = buf.error = true;
buf.error_info = 0;
++m_stats.payload_errror;
if (m_user_callback) {
buf.busy = !m_user_callback->packet_received(this, m_user_callback_param, buf.pkt);
}
}
} // namespace f4ll

217
src/packetusart.cpp
View file

@ -1,217 +0,0 @@
/*
* ll_hsusart_impl.h
*
* Created on: Oct 29, 2019
* Author: abody
*/
#include <string.h>
#include "f4ll/packetusart.h"
namespace f4ll {
template<typename T> static inline T RoundUpTo4(T input)
{
return (input + 3) & (((T)-1) - 3);
}
PacketUsart::PacketUsart(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx)
: UsartCore(usart, dma, streamRx, streamTx)
{
CrcHandler::Instance().AttachSlot(m_crcSlot);
LL_USART_EnableIT_IDLE(usart);
LL_USART_EnableIT_ERROR(usart);
}
void PacketUsart::RxProcessed(bool second)
{
m_rxBuffers[second].busy = false;
m_rxBuffers[second].error = false;
}
void PacketUsart::SetCallback(IHsUsartCallback *callback, uintptr_t callbackParam)
{
m_userCallback = callback;
m_userCallbackParam = callbackParam;
}
void PacketUsart::PostPacket(uint8_t const *payload, uint8_t length, bool waitForCrcQueue)
{
uint16_t payloadLength = RoundUpTo4((uint16_t)length);
BuildHeader(m_txBuffer.packet, m_txSerialNo++, length);
if(payload)
memcpy(m_txBuffer.packet.payload, payload, length);
m_txBuffer.requestedLength = sizeof(m_txBuffer.packet.header) + payloadLength + sizeof(uint32_t);
m_txBuffer.busy = true;
m_txBuffer.error = false;
CrcHandler::Instance().Enqueue(m_crcSlot, 0, &m_txBuffer.packet, sizeof(PacketHeader) + payloadLength,
nullptr, reinterpret_cast<uintptr_t>(m_txBuffer.packet.payload + payloadLength));
while(waitForCrcQueue && CrcHandler::Instance().IsQueued(m_crcSlot, 0));
SetupTransmit(&m_txBuffer.packet, m_txBuffer.requestedLength);
++m_stats.sent;
}
void PacketUsart::SetupReceive()
{
m_rxBuffers[m_rxBufferSelector].requestedLength = sizeof(m_rxBuffers[m_rxBufferSelector].packet);
UsartCore::SetupReceive(&m_rxBuffers[m_rxBufferSelector], sizeof(m_rxBuffers[m_rxBufferSelector].packet));
}
//////////////////////////////////////
// UsartCore pure virtual functions //
//////////////////////////////////////
void PacketUsart::ReceiverIdle(void)
{
uint16_t rcvdLen = m_rxBuffers[m_rxBufferSelector].requestedLength - LL_DMA_GetDataLength(m_rxDma.GetDma(), m_rxDma.GetStream());
if(rcvdLen >= sizeof(PacketHeader)) {
if(CheckHeader(m_rxBuffers[m_rxBufferSelector].packet.header)) {
if(rcvdLen >= sizeof(PacketHeader) +
RoundUpTo4((uint16_t)m_rxBuffers[m_rxBufferSelector].packet.header.payloadLength)
+ sizeof(uint32_t))
LL_DMA_DisableStream(m_rxDma.GetDma(), m_rxDma.GetStream());
else
++m_stats.premature_payload;
} else {
m_rxBuffers[m_rxBufferSelector].error = 1;
LL_DMA_DisableStream(m_rxDma.GetDma(), m_rxDma.GetStream());
}
} else
++m_stats.premature_hdr;
}
void PacketUsart::TransmissionComplete(void)
{
LL_USART_DisableDirectionTx(m_usart); // enforcing an idle frame
LL_USART_EnableDirectionTx(m_usart);
m_txBuffer.busy = 0;
}
void PacketUsart::FramingError(void) {}
void PacketUsart::Overrun(void) {}
void PacketUsart::RxDmaTransferComplete(void)
{
if(CheckHeader(m_rxBuffers[m_rxBufferSelector].packet.header))
CrcHandler::Instance().Enqueue(m_crcSlot, 1,
&m_rxBuffers[m_rxBufferSelector].packet,
sizeof(PacketHeader) + RoundUpTo4((uint16_t)m_rxBuffers[m_rxBufferSelector].packet.header.payloadLength),
this, m_rxBufferSelector);
else {
++m_stats.hdrError;
m_rxBuffers[m_rxBufferSelector].error = true;
}
SwitchRxBuffers();
}
void PacketUsart::RxDmaHalfTransfer(void)
{
}
void PacketUsart::RxDmaError(DmaHelper::DmaErrorType reason)
{
m_rxBuffers[m_rxBufferSelector].error = 1;
++m_stats.rxDmaError;
SwitchRxBuffers();
}
void PacketUsart::TxDmaTransferComplete(void)
{
LL_USART_EnableIT_TC(m_usart);
LL_DMA_DisableStream(m_txDma.GetDma(), m_txDma.GetStream());
}
void PacketUsart::TxDmaHalfTransfer(void)
{
}
void PacketUsart::TxDmaError(DmaHelper::DmaErrorType reason)
{
m_txBuffer.error = 1;
++m_stats.txDmaError;
}
///////////////////////
// Private functions //
///////////////////////
void PacketUsart::BuildHeader(Packet &packet, uint8_t serialNo, uint8_t length)
{
uint8_t hash = STARTMARKER;
packet.header.startByte = STARTMARKER;
packet.header.serial = serialNo;
hash ^= serialNo;
packet.header.payloadLength = length;
hash ^= length;
packet.header.hash = hash;
}
bool PacketUsart::CheckHeader(PacketHeader &header)
{
return header.startByte == STARTMARKER && (header.startByte ^ header.serial ^ header.payloadLength) == header.hash;
}
void PacketUsart::SwitchRxBuffers(void)
{
++m_stats.rcvd;
m_rxBufferSelector = !m_rxBufferSelector;
if(m_rxBuffers[m_rxBufferSelector].busy)
++m_stats.overrun;
SetupReceive();
}
///////////////////////////
// CrcHandler::ICallback //
///////////////////////////
void PacketUsart::CrcSucceeded(uintptr_t callbackParam, uint32_t crc, uint8_t task)
{
Buffer &buf(m_rxBuffers[static_cast<int>(callbackParam)]);
buf.busy = 1;
if(*(uint32_t*) (buf.packet.payload + RoundUpTo4((uint16_t)buf.packet.header.payloadLength)) != crc) {
buf.error = 1;
buf.errorInfo = crc;
++m_stats.payloadErrror;
}
if(m_userCallback)
buf.busy = !m_userCallback->PacketReceived(this, m_userCallbackParam, buf.packet);
}
void PacketUsart::CrcFailed(uintptr_t callbackParam, uint32_t crc, uint8_t task)
{
Buffer &buf(m_rxBuffers[static_cast<int>(callbackParam)]);
buf.busy = buf.error = true;
buf.errorInfo = 0;
++m_stats.payloadErrror;
if(m_userCallback)
buf.busy = !m_userCallback->PacketReceived(this, m_userCallbackParam, buf.packet);
}
} // namespace f4ll

105
src/str_util.cpp Normal file
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@ -0,0 +1,105 @@
#include <f4ll/str_util.h>
#include <stdint.h>
//////////////////////////////////////////////////////////////////////////////
size_t strcpy_ex(char *dst, char const *src)
{
size_t ret = 0;
do {
*dst++ = *src;
++ret;
} while (*src++);
return ret - 1;
}
//////////////////////////////////////////////////////////////////////////////
void strrev(char *first, char *last)
{
char tmp;
while (last > first) {
tmp = *first;
*first++ = *last;
*last-- = tmp;
}
}
//////////////////////////////////////////////////////////////////////////////
char tochr(const uint8_t in, const uint8_t upper)
{
return in + ((in < 10) ? '0' : (upper ? 'A' : 'a') - 10);
}
//////////////////////////////////////////////////////////////////////////////
size_t uitodec(char *buffer, uint32_t data)
{
char *b2 = buffer;
if (!data) {
*b2++ = '0';
*b2 = '\0';
return 1;
}
while (data) {
*b2++ = (data % 10) + '0';
data /= 10;
}
size_t ret = b2 - buffer;
*b2-- = 0;
strrev(buffer, b2);
return ret;
}
//////////////////////////////////////////////////////////////////////////////
size_t uitohex(char *buffer, uint32_t data, uint8_t chars)
{
char *b2 = buffer;
size_t ret = 0;
if (chars == 0xff || !chars) {
if (!data) {
*b2++ = '0';
*b2 = '\0';
return 1;
}
while (data) {
uint8_t curval = data & 0x0f;
*b2++ = tochr(curval, 1);
data >>= 4;
}
ret = b2 - buffer;
} else {
ret = chars;
for (uint8_t pos = 0; pos < (uint8_t)ret; ++pos) {
*b2++ = tochr(data & 0x0f, 1);
data >>= 4;
}
}
*b2-- = 0;
strrev(buffer, b2);
return ret;
}
//////////////////////////////////////////////////////////////////////////////
size_t itodec(char *buffer, int data)
{
if (data < 0) {
*buffer++ = '-';
return uitodec(buffer, -data) + 1;
}
return uitodec(buffer, data);
}
//////////////////////////////////////////////////////////////////////////////
size_t itohex(char *buffer, int data)
{
if (data < 0) {
*buffer++ = '-';
return uitohex(buffer, -data, 0) + 1;
}
return uitohex(buffer, data, 0);
}

110
src/strutil.cpp
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@ -1,110 +0,0 @@
#include <stdint.h>
#include "f4ll/strutil.h"
//////////////////////////////////////////////////////////////////////////////
size_t strcpy_ex(char *dst, char const *src)
{
size_t ret = 0;
do {
*dst++ = *src;
++ret;
} while(*src++);
return ret - 1;
}
//////////////////////////////////////////////////////////////////////////////
void strrev(char *first, char *last)
{
char tmp;
while(last > first) {
tmp = *first;
*first++ = *last;
*last-- = tmp;
}
}
//////////////////////////////////////////////////////////////////////////////
char tochr(const uint8_t in, const uint8_t upper)
{
return in + ((in < 10) ? '0' : (upper ? 'A' : 'a') - 10);
}
//////////////////////////////////////////////////////////////////////////////
size_t uitodec(char* buffer, uint32_t data)
{
char *b2 = buffer;
if(!data) {
*b2++ = '0';
*b2 = '\0';
return 1;
}
while(data) {
*b2++ = (data % 10) + '0';
data /= 10;
}
size_t ret = b2 - buffer;
*b2-- = 0;
strrev(buffer, b2);
return ret;
}
//////////////////////////////////////////////////////////////////////////////
size_t uitohex(char* buffer, uint32_t data, uint8_t chars)
{
char *b2 = buffer;
size_t ret = 0;
if(chars == 0xff || !chars)
{
if(!data) {
*b2++ = '0';
*b2 = '\0';
return 1;
}
while(data) {
uint8_t curval = data & 0x0f;
*b2++ = tochr(curval, 1);
data >>= 4;
}
ret = b2 - buffer;
}
else
{
ret = chars;
for(uint8_t pos = 0; pos < (uint8_t)ret; ++pos) {
*b2++ = tochr(data & 0x0f, 1);
data >>= 4;
}
}
*b2-- = 0;
strrev(buffer, b2);
return ret;
}
//////////////////////////////////////////////////////////////////////////////
size_t itodec(char* buffer, int data)
{
if(data < 0) {
*buffer++ = '-';
return uitodec(buffer, -data) + 1;
}
return uitodec(buffer, data);
}
//////////////////////////////////////////////////////////////////////////////
size_t itohex(char* buffer, int data)
{
if(data < 0) {
*buffer++ = '-';
return uitohex(buffer, -data, 0) + 1;
}
return uitohex(buffer, data, 0);
}

145
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@ -0,0 +1,145 @@
/*
* ll_dmadrivenusartcore.cpp
*
* Created on: Nov 4, 2019
* Author: abody
*/
#include <f4ll/usart_core.h>
namespace f4ll {
usart_core::usart_core(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx)
: m_usart(usart),
m_rx_dma(dma, streamRx),
m_tx_dma(dma, streamTx)
{
uint32_t status = usart->SR;
volatile uint32_t tmpreg = usart->DR; // clearing some of the error/status bits in the USART
(void)tmpreg;
(void)status;
*m_tx_dma.get_ifc_reg() =
m_tx_dma.get_tc_mask() | m_rx_dma.get_ht_mask() | m_tx_dma.get_te_mask() | m_rx_dma.get_fe_mask() | m_rx_dma.get_dme_mask();
*m_rx_dma.get_ifc_reg() =
m_rx_dma.get_tc_mask() | m_rx_dma.get_ht_mask() | m_rx_dma.get_te_mask() | m_rx_dma.get_fe_mask() | m_rx_dma.get_dme_mask();
LL_DMA_EnableIT_TC(dma, streamRx);
LL_DMA_EnableIT_TE(dma, streamRx);
LL_DMA_EnableIT_TC(dma, streamTx);
LL_DMA_EnableIT_TE(dma, streamTx);
}
void usart_core::usart_isr()
{
uint32_t status = m_usart->SR;
volatile uint32_t tmpreg = m_usart->DR; // clearing some of the error/status bits in the HW
(void)tmpreg;
if (LL_USART_IsEnabledIT_TC(m_usart) && LL_USART_IsActiveFlag_TC(m_usart)) { // transmission complete
LL_USART_DisableIT_TC(m_usart);
transmission_complete();
}
if (LL_USART_IsEnabledIT_IDLE(m_usart) && (status & USART_SR_IDLE)) {
receiver_idle();
}
if (LL_USART_IsEnabledIT_ERROR(m_usart)) {
if (status & USART_SR_FE) {
framing_error();
}
if (status & USART_SR_ORE) {
overrun();
}
}
}
void usart_core::rx_dma_isr()
{
if (*m_rx_dma.get_is_reg() & m_rx_dma.get_tc_mask()) {
*m_rx_dma.get_ifc_reg() = m_rx_dma.get_tc_mask();
if (m_rx_dma.is_enabled_it_tc()) {
rx_dma_transfer_complete();
}
}
if (*m_rx_dma.get_is_reg() & m_rx_dma.get_ht_mask()) {
*m_rx_dma.get_ifc_reg() = m_rx_dma.get_ht_mask();
if (m_rx_dma.is_enabled_it_ht()) {
rx_dma_half_transfer();
}
}
if (*m_rx_dma.get_is_reg() & m_rx_dma.get_te_mask()) {
*m_rx_dma.get_ifc_reg() = m_rx_dma.get_te_mask();
if (m_rx_dma.is_enabled_it_te()) {
rx_dma_error(dma_helper::dma_error_type::transfer);
}
}
if (*m_rx_dma.get_is_reg() & m_rx_dma.get_fe_mask()) {
*m_rx_dma.get_ifc_reg() = m_rx_dma.get_fe_mask();
if (m_rx_dma.is_enabled_it_fe()) {
rx_dma_error(dma_helper::dma_error_type::fifo);
}
}
if (*m_rx_dma.get_is_reg() & m_rx_dma.get_dme_mask()) {
*m_rx_dma.get_ifc_reg() = m_rx_dma.get_dme_mask();
if (m_rx_dma.is_enabled_it_dme()) {
rx_dma_error(dma_helper::dma_error_type::direct_mode);
}
}
}
void usart_core::tx_dma_isr()
{
if (*m_tx_dma.get_is_reg() & m_tx_dma.get_tc_mask()) { // DMA transfer complete
*m_tx_dma.get_ifc_reg() = m_tx_dma.get_tc_mask();
if (m_tx_dma.is_enabled_it_tc()) {
tx_dma_transfer_complete();
}
}
if (*m_tx_dma.get_is_reg() & m_tx_dma.get_ht_mask()) {
*m_tx_dma.get_ifc_reg() = m_tx_dma.get_ht_mask();
if (m_tx_dma.is_enabled_it_ht()) {
tx_dma_half_transfer();
}
}
if (*m_tx_dma.get_is_reg() & m_tx_dma.get_te_mask()) {
*m_tx_dma.get_ifc_reg() = m_tx_dma.get_te_mask();
if (m_tx_dma.is_enabled_it_te()) {
tx_dma_error(dma_helper::dma_error_type::transfer);
}
}
if (*m_tx_dma.get_is_reg() & m_tx_dma.get_fe_mask()) {
*m_tx_dma.get_ifc_reg() = m_tx_dma.get_fe_mask();
if (m_tx_dma.is_enabled_it_fe()) {
tx_dma_error(dma_helper::dma_error_type::fifo);
}
}
if (*m_tx_dma.get_is_reg() & m_tx_dma.get_dme_mask()) {
*m_tx_dma.get_ifc_reg() = m_tx_dma.get_dme_mask();
if (m_tx_dma.is_enabled_it_dme()) {
tx_dma_error(dma_helper::dma_error_type::direct_mode);
}
}
}
void usart_core::setup_transmit(void const *buffer, uint16_t length)
{
LL_DMA_ConfigAddresses(
m_tx_dma.get_dma(), m_tx_dma.get_stream(), reinterpret_cast<uint32_t>(buffer), LL_USART_DMA_GetRegAddr(m_usart),
LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_SetDataLength(m_tx_dma.get_dma(), m_tx_dma.get_stream(), length);
LL_USART_EnableDMAReq_TX(m_usart);
LL_DMA_EnableStream(m_tx_dma.get_dma(), m_tx_dma.get_stream());
}
void usart_core::setup_receive(void *buffer, uint16_t length)
{
LL_DMA_ConfigAddresses(
m_rx_dma.get_dma(), m_rx_dma.get_stream(), LL_USART_DMA_GetRegAddr(m_usart), reinterpret_cast<uint32_t>(buffer),
LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
LL_DMA_SetDataLength(m_rx_dma.get_dma(), m_rx_dma.get_stream(), length);
LL_USART_EnableDMAReq_RX(m_usart);
LL_USART_ClearFlag_ORE(m_usart);
LL_DMA_EnableStream(m_rx_dma.get_dma(), m_rx_dma.get_stream());
}
} /* namespace f4ll */

138
src/usartcore.cpp
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@ -1,138 +0,0 @@
/*
* ll_dmadrivenusartcore.cpp
*
* Created on: Nov 4, 2019
* Author: abody
*/
#include "f4ll/usartcore.h"
namespace f4ll {
UsartCore::UsartCore(USART_TypeDef *usart, DMA_TypeDef *dma, uint32_t streamRx, uint32_t streamTx)
: m_usart(usart)
, m_rxDma(dma, streamRx)
, m_txDma(dma, streamTx)
{
uint32_t status = usart->SR;
volatile uint32_t tmpreg = usart->DR; // clearing some of the error/status bits in the USART
(void) tmpreg;
(void) status;
*m_txDma.GetIfcReg() =
m_txDma.GetTcMask() | m_rxDma.GetHtMask() | m_txDma.GetTeMask() | m_rxDma.GetFeMask() | m_rxDma.GetDmeMask();
*m_rxDma.GetIfcReg() =
m_rxDma.GetTcMask() | m_rxDma.GetHtMask() | m_rxDma.GetTeMask() | m_rxDma.GetFeMask() | m_rxDma.GetDmeMask();
LL_DMA_EnableIT_TC(dma, streamRx);
LL_DMA_EnableIT_TE(dma, streamRx);
LL_DMA_EnableIT_TC(dma, streamTx);
LL_DMA_EnableIT_TE(dma, streamTx);
}
void UsartCore::UsartIsr()
{
uint32_t status = m_usart->SR;
volatile uint32_t tmpreg = m_usart->DR; // clearing some of the error/status bits in the HW
(void) tmpreg;
if(LL_USART_IsEnabledIT_TC(m_usart) && LL_USART_IsActiveFlag_TC(m_usart)) { // transmission complete
LL_USART_DisableIT_TC(m_usart);
TransmissionComplete();
}
if(LL_USART_IsEnabledIT_IDLE(m_usart) && (status & USART_SR_IDLE)) {
ReceiverIdle();
}
if(LL_USART_IsEnabledIT_ERROR(m_usart)) {
if(status & USART_SR_FE) {
FramingError();
}
if(status & USART_SR_ORE) {
Overrun();
}
}
}
void UsartCore::RxDmaIsr()
{
if(*m_rxDma.GetIsReg() & m_rxDma.GetTcMask()) {
*m_rxDma.GetIfcReg() = m_rxDma.GetTcMask();
if(m_rxDma.IsEnabledIt_TC())
RxDmaTransferComplete();
}
if(*m_rxDma.GetIsReg() & m_rxDma.GetHtMask()) {
*m_rxDma.GetIfcReg() = m_rxDma.GetHtMask();
if(m_rxDma.IsEnabledIt_HT())
RxDmaHalfTransfer();
}
if(*m_rxDma.GetIsReg() & m_rxDma.GetTeMask()) {
*m_rxDma.GetIfcReg() = m_rxDma.GetTeMask();
if(m_rxDma.IsEnabledIt_TE())
RxDmaError(DmaHelper::DmaErrorType::Transfer);
}
if(*m_rxDma.GetIsReg() & m_rxDma.GetFeMask()) {
*m_rxDma.GetIfcReg() = m_rxDma.GetFeMask();
if(m_rxDma.IsEnabledIt_FE())
RxDmaError(DmaHelper::DmaErrorType::Fifo);
}
if(*m_rxDma.GetIsReg() & m_rxDma.GetDmeMask()) {
*m_rxDma.GetIfcReg() = m_rxDma.GetDmeMask();
if(m_rxDma.IsEnabledIt_DME())
RxDmaError(DmaHelper::DmaErrorType::DirectMode);
}
}
void UsartCore::TxDmaIsr()
{
if(*m_txDma.GetIsReg() & m_txDma.GetTcMask()) { // DMA transfer complete
*m_txDma.GetIfcReg() = m_txDma.GetTcMask();
if(m_txDma.IsEnabledIt_TC())
TxDmaTransferComplete();
}
if(*m_txDma.GetIsReg() & m_txDma.GetHtMask()) {
*m_txDma.GetIfcReg() = m_txDma.GetHtMask();
if(m_txDma.IsEnabledIt_HT())
TxDmaHalfTransfer();
}
if(*m_txDma.GetIsReg() & m_txDma.GetTeMask()) {
*m_txDma.GetIfcReg() = m_txDma.GetTeMask();
if(m_txDma.IsEnabledIt_TE())
TxDmaError(DmaHelper::DmaErrorType::Transfer);
}
if(*m_txDma.GetIsReg() & m_txDma.GetFeMask()) {
*m_txDma.GetIfcReg() = m_txDma.GetFeMask();
if(m_txDma.IsEnabledIt_FE())
TxDmaError(DmaHelper::DmaErrorType::Fifo);
}
if(*m_txDma.GetIsReg() & m_txDma.GetDmeMask()) {
*m_txDma.GetIfcReg() = m_txDma.GetDmeMask();
if(m_txDma.IsEnabledIt_DME())
TxDmaError(DmaHelper::DmaErrorType::DirectMode);
}
}
void UsartCore::SetupTransmit(void const *buffer, uint16_t length)
{
LL_DMA_ConfigAddresses(m_txDma.GetDma(), m_txDma.GetStream(), reinterpret_cast<uint32_t>(buffer),
LL_USART_DMA_GetRegAddr(m_usart), LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_SetDataLength(m_txDma.GetDma(), m_txDma.GetStream(), length);
LL_USART_EnableDMAReq_TX(m_usart);
LL_DMA_EnableStream(m_txDma.GetDma(), m_txDma.GetStream());
}
void UsartCore::SetupReceive(void *buffer, uint16_t length)
{
LL_DMA_ConfigAddresses(m_rxDma.GetDma(), m_rxDma.GetStream(), LL_USART_DMA_GetRegAddr(m_usart),
reinterpret_cast<uint32_t>(buffer), LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
LL_DMA_SetDataLength(m_rxDma.GetDma(), m_rxDma.GetStream(), length);
LL_USART_EnableDMAReq_RX(m_usart);
LL_USART_ClearFlag_ORE(m_usart);
LL_DMA_EnableStream(m_rxDma.GetDma(), m_rxDma.GetStream());
}
} /* namespace f4ll */