diff --git a/Makefile b/Makefile index 95a3b7b..33e1cf0 100644 --- a/Makefile +++ b/Makefile @@ -117,8 +117,8 @@ include $(CHIBIOS)/tools/mk/autobuild.mk #include $(CHIBIOS)/test/oslib/oslib_test.mk # Define linker script file here. -#LDSCRIPT= $(STARTUPLD)/STM32L476xG.ld -LDSCRIPT= STM32L432xC_stmdsp.ld +LDSCRIPT= STM32L476xG_stmdsp.ld +#LDSCRIPT= STM32L432xC_stmdsp.ld # C sources that can be compiled in ARM or THUMB mode depending on the global # setting. diff --git a/STM32L476xG_stmdsp.ld b/STM32L476xG_stmdsp.ld new file mode 100644 index 0000000..f54ab51 --- /dev/null +++ b/STM32L476xG_stmdsp.ld @@ -0,0 +1,85 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/* + * STM32L476xG memory setup. + */ +MEMORY +{ + flash0 (rx) : org = 0x08000000, len = 1M + flash1 (rx) : org = 0x00000000, len = 0 + flash2 (rx) : org = 0x00000000, len = 0 + flash3 (rx) : org = 0x00000000, len = 0 + flash4 (rx) : org = 0x00000000, len = 0 + flash5 (rx) : org = 0x00000000, len = 0 + flash6 (rx) : org = 0x00000000, len = 0 + flash7 (rx) : org = 0x00000000, len = 0 + ram0 (wx) : org = 0x20000000, len = 96k + ram1 (wx) : org = 0x00000000, len = 0 + ram2 (wx) : org = 0x00000000, len = 0 + ram3 (wx) : org = 0x00000000, len = 0 + ram4 (wx) : org = 0x10000000, len = 0 /* Save 32k for ELF load */ + ram5 (wx) : org = 0x00000000, len = 0 + ram6 (wx) : org = 0x00000000, len = 0 + ram7 (wx) : org = 0x00000000, len = 0 +} + +/* For each data/text section two region are defined, a virtual region + and a load region (_LMA suffix).*/ + +/* Flash region to be used for exception vectors.*/ +REGION_ALIAS("VECTORS_FLASH", flash0); +REGION_ALIAS("VECTORS_FLASH_LMA", flash0); + +/* Flash region to be used for constructors and destructors.*/ +REGION_ALIAS("XTORS_FLASH", flash0); +REGION_ALIAS("XTORS_FLASH_LMA", flash0); + +/* Flash region to be used for code text.*/ +REGION_ALIAS("TEXT_FLASH", flash0); +REGION_ALIAS("TEXT_FLASH_LMA", flash0); + +/* Flash region to be used for read only data.*/ +REGION_ALIAS("RODATA_FLASH", flash0); +REGION_ALIAS("RODATA_FLASH_LMA", flash0); + +/* Flash region to be used for various.*/ +REGION_ALIAS("VARIOUS_FLASH", flash0); +REGION_ALIAS("VARIOUS_FLASH_LMA", flash0); + +/* Flash region to be used for RAM(n) initialization data.*/ +REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0); + +/* RAM region to be used for Main stack. This stack accommodates the processing + of all exceptions and interrupts.*/ +REGION_ALIAS("MAIN_STACK_RAM", ram0); + +/* RAM region to be used for the process stack. This is the stack used by + the main() function.*/ +REGION_ALIAS("PROCESS_STACK_RAM", ram0); + +/* RAM region to be used for data segment.*/ +REGION_ALIAS("DATA_RAM", ram0); +REGION_ALIAS("DATA_RAM_LMA", flash0); + +/* RAM region to be used for BSS segment.*/ +REGION_ALIAS("BSS_RAM", ram0); + +/* RAM region to be used for the default heap.*/ +REGION_ALIAS("HEAP_RAM", ram0); + +/* Generic rules inclusion.*/ +INCLUDE rules.ld diff --git a/gui/stmdsp.cpp b/gui/stmdsp.cpp index 9119284..897e643 100644 --- a/gui/stmdsp.cpp +++ b/gui/stmdsp.cpp @@ -36,24 +36,10 @@ namespace stmdsp } } - /*std::vector device::sample(unsigned long int count) { - if (connected()) { - uint8_t request[3] = { - 'd', - static_cast(count), - static_cast(count >> 8) - }; - m_serial.write(request, 3); - std::vector data (count); - m_serial.read(reinterpret_cast(data.data()), data.size() * sizeof(adcsample_t)); - return data; - } else { - return {}; - } - }*/ - void device::continuous_set_buffer_size(unsigned int size) { if (connected()) { + m_buffer_size = size; + uint8_t request[3] = { 'B', static_cast(size), diff --git a/gui/stmdsp.hpp b/gui/stmdsp.hpp index 5dda89c..4551483 100644 --- a/gui/stmdsp.hpp +++ b/gui/stmdsp.hpp @@ -19,7 +19,7 @@ namespace stmdsp { - constexpr unsigned int SAMPLES_MAX = 4000; + constexpr unsigned int SAMPLES_MAX = 3000; class scanner { @@ -55,6 +55,7 @@ namespace stmdsp //std::vector sample(unsigned long int count = 1); void continuous_set_buffer_size(unsigned int size); + unsigned int get_buffer_size() const { return m_buffer_size; } void set_sample_rate(unsigned int id); unsigned int get_sample_rate(); void continuous_start(); @@ -73,6 +74,7 @@ namespace stmdsp private: serial::Serial m_serial; + unsigned int m_buffer_size = SAMPLES_MAX; }; } diff --git a/gui/wav.hpp b/gui/wav.hpp new file mode 100644 index 0000000..a87efb1 --- /dev/null +++ b/gui/wav.hpp @@ -0,0 +1,95 @@ +#ifndef WAV_HPP_ +#define WAV_HPP_ + +#include +#include +#include + +namespace wav +{ + struct header { + char riff[4]; // "RIFF" + uint32_t filesize; // Total file size minus eight bytes + char wave[4]; // "WAVE" + + bool valid() const { + return strncmp(riff, "RIFF", 4) == 0 && filesize > 8 && strncmp(wave, "WAVE", 4) == 0; + } + } __attribute__ ((packed)); + + struct format { + char fmt_[4]; // "fmt " + uint32_t size; + uint16_t type; + uint16_t channelcount; + uint32_t samplerate; + uint32_t byterate; + uint16_t unused; + uint16_t bps; + + bool valid() const { + return strncmp(fmt_, "fmt ", 4) == 0; + } + } __attribute__ ((packed)); + + struct data { + char data[4]; // "data" + uint32_t size; + + bool valid() const { + return strncmp(data, "data", 4) == 0; + } + } __attribute__ ((packed)); + + class clip { + public: + clip(const char *path) { + std::ifstream file (path); + if (!file.good()) + return; + { + header h; + file.read(reinterpret_cast(&h), sizeof(header)); + if (!h.valid()) + return; + } + { + format f; + file.read(reinterpret_cast(&f), sizeof(format)); + if (!f.valid() || f.type != 1) // ensure PCM + return; + } + { + wav::data d; + file.read(reinterpret_cast(&d), sizeof(wav::data)); + if (!d.valid()) + return; + m_data = new char[d.size + 4096 - (d.size % 4096)]; + m_size = d.size; + file.read(m_data, d.size); + } + } + + bool valid() const { + return m_data != nullptr && m_size > 0; + } + auto data() const { + return m_data; + } + auto next(unsigned int chunksize = 3000) { + if (m_pos == m_size) { + m_pos = 0; + } + auto ret = m_data + m_pos; + m_pos = std::min(m_pos + chunksize, m_size); + return ret; + } + private: + char *m_data = nullptr; + uint32_t m_size = 0; + uint32_t m_pos = 0; + }; +} + +#endif // WAV_HPP_ + diff --git a/gui/wxmain.cpp b/gui/wxmain.cpp index 8f2e386..cbc1f8a 100644 --- a/gui/wxmain.cpp +++ b/gui/wxmain.cpp @@ -24,8 +24,67 @@ #include #include +#include #include +static const std::array srateValues { + "8 kS/s", + "16 kS/s", + "20 kS/s", + "32 kS/s", + "48 kS/s", + "96 kS/s" +}; +static const std::array srateNums { + 8000, + 16000, + 20000, + 32000, + 48000, + 96000 +}; + +static const char *makefile_text = R"make( +all: + @arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \ + -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 \ + -nostartfiles \ + -Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \ + $0 -o $0.o + @cp $0.o $0.orig.o + @arm-none-eabi-strip -s -S --strip-unneeded $0.o + @arm-none-eabi-objcopy --remove-section .ARM.attributes \ + --remove-section .comment \ + --remove-section .noinit \ + $0.o + arm-none-eabi-size $0.o +)make"; + +static const char *file_header = R"cpp( +#include + +using adcsample_t = uint16_t; +constexpr unsigned int SIZE = $0; + +adcsample_t *process_data(adcsample_t *samples, unsigned int size); + +extern "C" void process_data_entry() +{ + ((void (*)())process_data)(); +} + +// End stmdspgui header code + +)cpp"; + +static const char *file_content = +R"cpp(adcsample_t *process_data(adcsample_t *samples, unsigned int size) +{ + return samples; +} +)cpp"; + + enum Id { MeasureTimer = 1, @@ -78,17 +137,9 @@ MainFrame::MainFrame() : wxFrame(nullptr, wxID_ANY, "stmdspgui", wxPoint(50, 50) splitter->SetMinimumPaneSize(20); auto comp = new wxButton(panelToolbar, Id::MCodeCompile, "Compile"); - static const wxString srateValues[] = { - "8 kS/s", - "16 kS/s", - "20 kS/s", - "32 kS/s", - "48 kS/s", - "96 kS/s" - }; m_rate_select = new wxComboBox(panelToolbar, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, - 6, srateValues, wxCB_READONLY); + srateValues.size(), srateValues.data(), wxCB_READONLY); m_rate_select->Disable(); sizerToolbar->Add(comp, 0, wxLEFT, 4); @@ -182,11 +233,23 @@ void MainFrame::onMeasureTimer([[maybe_unused]] wxTimerEvent&) if (m_conv_result_log != nullptr) { if (auto samples = m_device->continuous_read(); samples.size() > 0) { for (auto& s : samples) { - auto str = wxString::Format("%u\n", s); - m_conv_result_log->Write(str.ToAscii(), str.Len()); + auto str = std::to_string(s); + m_conv_result_log->Write(str.c_str(), str.size()); } } - } else if (m_status_bar && m_run_measure && m_run_measure->IsChecked()) { + } + + if (m_wav_clip != nullptr) { + auto size = m_device->get_buffer_size(); + auto chunk = new stmdsp::adcsample_t[size]; + auto src = reinterpret_cast(m_wav_clip->next(size)); + for (unsigned int i = 0; i < size; i++) + chunk[i] = ((uint32_t)*src++) / 16 + 2048; + m_device->siggen_upload(chunk, size); + delete[] chunk; + } + + if (m_status_bar && m_run_measure && m_run_measure->IsChecked()) { m_status_bar->SetStatusText(wxString::Format(wxT("Execution time: %u cycles"), m_device->continuous_start_get_measurement())); } @@ -230,46 +293,16 @@ void MainFrame::prepareEditor() onFileNew(dummy); } -static const char *makefile_text = R"make( -all: - @arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \ - -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 \ - -nostartfiles \ - -Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \ - $0 -o $0.o - @cp $0.o $0.orig.o - @arm-none-eabi-strip -s -S --strip-unneeded $0.o - @arm-none-eabi-objcopy --remove-section .ARM.attributes \ - --remove-section .comment \ - --remove-section .noinit \ - $0.o - arm-none-eabi-size $0.o -)make"; - -static wxString file_header (R"cpp( -#include - -using adcsample_t = uint16_t; -constexpr unsigned int SIZE = 3000; - -adcsample_t *process_data(adcsample_t *samples, unsigned int size); - -extern "C" void process_data_entry() -{ - ((void (*)())process_data)(); -} - -// End stmdspgui header code - -)cpp"); - wxString MainFrame::compileEditorCode() { if (m_temp_file_name.IsEmpty()) m_temp_file_name = wxFileName::CreateTempFileName("stmdspgui"); wxFile file (m_temp_file_name, wxFile::write); - file.Write(file_header + m_text_editor->GetText()); + wxString file_text (file_header); + file_text.Replace("$0", std::to_string(m_device != nullptr ? m_device->get_buffer_size() + : stmdsp::SAMPLES_MAX)); + file.Write(wxString(file_text) + m_text_editor->GetText()); file.Close(); wxFile makefile (m_temp_file_name + "make", wxFile::write); @@ -301,12 +334,7 @@ wxString MainFrame::compileEditorCode() void MainFrame::onFileNew([[maybe_unused]] wxCommandEvent&) { m_open_file_path = ""; - m_text_editor->SetText( -R"cpp(adcsample_t *process_data(adcsample_t *samples, unsigned int size) -{ - return samples; -} -)cpp"); + m_text_editor->SetText(file_content); m_text_editor->DiscardEdits(); m_status_bar->SetStatusText("Ready."); } @@ -444,6 +472,10 @@ void MainFrame::onRunStart(wxCommandEvent& ce) if (m_run_measure && m_run_measure->IsChecked()) { m_device->continuous_start_measure(); m_measure_timer->StartOnce(1000); + } else if (m_wav_clip != nullptr) { + m_device->continuous_start(); + m_measure_timer->Start(m_device->get_buffer_size() * 500 / + srateNums[m_rate_select->GetSelection()]); } else { m_device->continuous_start(); m_measure_timer->Start(15); @@ -458,6 +490,7 @@ void MainFrame::onRunStart(wxCommandEvent& ce) } } else { m_device->continuous_stop(); + m_measure_timer->Stop(); menuItem->SetItemLabel("&Start"); m_status_bar->SetStatusText("Ready."); @@ -536,32 +569,43 @@ void MainFrame::onRunGenUpload([[maybe_unused]] wxCommandEvent&) "between zero and 4095.", "Enter Generator Values"); if (dialog.ShowModal() == wxID_OK) { if (wxString values = dialog.GetValue(); !values.IsEmpty()) { - std::vector samples; - while (!values.IsEmpty()) { - if (auto number_end = values.find_first_not_of("0123456789"); - number_end != wxString::npos && number_end > 0) - { - auto number = values.Left(number_end); - if (unsigned long n; number.ToULong(&n)) - samples.push_back(n & 4095); - - if (auto next = values.find_first_of("0123456789", number_end + 1); - next != wxString::npos) + if (values[0] == '/') { + m_wav_clip = new wav::clip(values.Mid(1)); + if (m_wav_clip->valid()) { + m_status_bar->SetStatusText("Generator ready."); + } else { + delete m_wav_clip; + m_wav_clip = nullptr; + m_status_bar->SetStatusText("Error: Bad WAV file."); + } + } else { + std::vector samples; + while (!values.IsEmpty()) { + if (auto number_end = values.find_first_not_of("0123456789"); + number_end != wxString::npos && number_end > 0) { - values = values.Mid(next); + auto number = values.Left(number_end); + if (unsigned long n; number.ToULong(&n)) + samples.push_back(n & 4095); + + if (auto next = values.find_first_of("0123456789", number_end + 1); + next != wxString::npos) + { + values = values.Mid(next); + } else { + break; + } } else { break; } - } else { - break; } - } - if (samples.size() <= stmdsp::SAMPLES_MAX) { - m_device->siggen_upload(&samples[0], samples.size()); - m_status_bar->SetStatusText("Generator ready."); - } else { - m_status_bar->SetStatusText("Error: Too many samples."); + if (samples.size() <= stmdsp::SAMPLES_MAX) { + m_device->siggen_upload(&samples[0], samples.size()); + m_status_bar->SetStatusText("Generator ready."); + } else { + m_status_bar->SetStatusText("Error: Too many samples."); + } } } else { m_status_bar->SetStatusText("Error: No samples given."); diff --git a/gui/wxmain.hpp b/gui/wxmain.hpp index ec30f1f..8068784 100644 --- a/gui/wxmain.hpp +++ b/gui/wxmain.hpp @@ -13,6 +13,7 @@ #define WXMAIN_HPP_ #include "stmdsp.hpp" +#include "wav.hpp" #include #include @@ -75,6 +76,7 @@ private: wxString m_temp_file_name; stmdsp::device *m_device = nullptr; + wav::clip *m_wav_clip = nullptr; bool tryDevice(); void prepareEditor(); diff --git a/source/common.hpp b/source/common.hpp new file mode 100644 index 0000000..1045b32 --- /dev/null +++ b/source/common.hpp @@ -0,0 +1,56 @@ +#include +#include + +constexpr unsigned int MAX_SAMPLE_BUFFER_SIZE = 6000; + +using Sample = uint16_t; + +class SampleBuffer +{ +public: + void clear() { + m_buffer.fill(0); + } + void modify(Sample *data, unsigned int srcsize) { + auto size = srcsize < m_size ? srcsize : m_size; + std::copy(data, data + size, m_buffer.data()); + m_modified = m_buffer.data(); + } + void midmodify(Sample *data, unsigned int srcsize) { + auto size = srcsize < m_size / 2 ? srcsize : m_size / 2; + std::copy(data, data + size, middata()); + m_modified = middata(); + } + + void setSize(unsigned int size) { + m_size = size < MAX_SAMPLE_BUFFER_SIZE ? size : MAX_SAMPLE_BUFFER_SIZE; + } + + Sample *data() /*const*/ { + return m_buffer.data(); + } + Sample *middata() /*const*/ { + return m_buffer.data() + m_size / 2; + } + uint8_t *bytedata() /*const*/ { + return reinterpret_cast(m_buffer.data()); + } + + Sample *modified() { + auto m = m_modified; + m_modified = nullptr; + return m; + } + unsigned int size() const { + return m_size; + } + unsigned int bytesize() const { + return m_size * sizeof(Sample); + } + +private: + std::array m_buffer; + unsigned int m_size = MAX_SAMPLE_BUFFER_SIZE; + Sample *m_modified = nullptr; +}; + diff --git a/source/error.hpp b/source/error.hpp new file mode 100644 index 0000000..699c746 --- /dev/null +++ b/source/error.hpp @@ -0,0 +1,38 @@ +#include + +constexpr unsigned int MAX_ERROR_QUEUE_SIZE = 8; + +enum class Error : char +{ + None = 0, + BadParam, + BadParamSize, + BadUserCodeLoad, + BadUserCodeSize, + NotIdle, + ConversionAborted +}; + +class ErrorManager +{ +public: + void add(Error error) { + if (m_index < m_queue.size()) + m_queue[m_index++] = error; + } + + bool assert(bool condition, Error error) { + if (!condition) + add(error); + return condition; + } + + Error pop() { + return m_index == 0 ? Error::None : m_queue[--m_index]; + } + +private: + std::array m_queue; + unsigned int m_index = 0; +}; + diff --git a/source/main.cpp b/source/main.cpp index f635953..b77bd2f 100644 --- a/source/main.cpp +++ b/source/main.cpp @@ -12,6 +12,12 @@ #include "ch.h" #include "hal.h" +static_assert(sizeof(adcsample_t) == sizeof(uint16_t)); +static_assert(sizeof(dacsample_t) == sizeof(uint16_t)); + +#include "common.hpp" +#include "error.hpp" + #include "adc.hpp" #include "dac.hpp" #include "elf_load.hpp" @@ -20,45 +26,22 @@ #include constexpr unsigned int MAX_ELF_FILE_SIZE = 8 * 1024; -constexpr unsigned int MAX_ERROR_QUEUE_SIZE = 8; -constexpr unsigned int MAX_SAMPLE_BUFFER_SIZE = 6000; // operate on buffers size this / 2 -constexpr unsigned int MAX_SIGGEN_BUFFER_SIZE = MAX_SAMPLE_BUFFER_SIZE / 2; enum class RunStatus : char { Idle = '1', Running }; -enum class Error : char -{ - None = 0, - BadParam, - BadParamSize, - BadUserCodeLoad, - BadUserCodeSize, - NotIdle, - ConversionAborted -}; - static RunStatus run_status = RunStatus::Idle; -static Error error_queue[MAX_ERROR_QUEUE_SIZE]; -static unsigned int error_queue_index = 0; - -static void error_queue_add(Error error) -{ - if (error_queue_index < MAX_ERROR_QUEUE_SIZE) - error_queue[error_queue_index++] = error; -} -static Error error_queue_pop() -{ - return error_queue_index == 0 ? Error::None : error_queue[--error_queue_index]; -} #define MSG_CONVFIRST (1) #define MSG_CONVSECOND (2) #define MSG_CONVFIRST_MEASURE (3) #define MSG_CONVSECOND_MEASURE (4) +#define MSG_FOR_FIRST(m) (m & 1) +#define MSG_FOR_MEASURE(m) (m > 2) + static msg_t conversionMBBuffer[4]; static MAILBOX_DECL(conversionMB, conversionMBBuffer, 4); @@ -67,22 +50,11 @@ static THD_FUNCTION(conversionThread, arg); static time_measurement_t conversion_time_measurement; -static_assert(sizeof(adcsample_t) == sizeof(uint16_t)); -static_assert(sizeof(dacsample_t) == sizeof(uint16_t)); +static ErrorManager EM; -#if CACHE_LINE_SIZE > 0 -CC_ALIGN(CACHE_LINE_SIZE) -#endif -static std::array adc_samples; -#if CACHE_LINE_SIZE > 0 -CC_ALIGN(CACHE_LINE_SIZE) -#endif -static std::array dac_samples; -static volatile const dacsample_t *dac_samples_new = nullptr; -#if CACHE_LINE_SIZE > 0 -CC_ALIGN(CACHE_LINE_SIZE) -#endif -static std::array dac2_samples; +static SampleBuffer samplesIn; +static SampleBuffer samplesOut; +static SampleBuffer samplesSigGen; static unsigned char elf_file_store[MAX_ELF_FILE_SIZE]; static ELF::Entry elf_entry = nullptr; @@ -117,10 +89,6 @@ int main() main_loop(); } -static unsigned int dac_sample_count = MAX_SAMPLE_BUFFER_SIZE; -static unsigned int dac2_sample_count = MAX_SIGGEN_BUFFER_SIZE; -static unsigned int adc_sample_count = MAX_SAMPLE_BUFFER_SIZE; - void main_loop() { @@ -132,71 +100,50 @@ void main_loop() switch (cmd[0]) { case 'a': - USBSerial::write((uint8_t *)adc_samples.data(), - adc_sample_count * sizeof(adcsample_t)); + USBSerial::write(samplesIn.bytedata(), samplesIn.bytesize()); break; case 'A': - USBSerial::read((uint8_t *)&adc_samples[0], - adc_sample_count * sizeof(adcsample_t)); + USBSerial::read(samplesIn.bytedata(), samplesIn.bytesize()); break; case 'B': - if (run_status == RunStatus::Idle) { - if (USBSerial::read(&cmd[1], 2) == 2) { - unsigned int count = cmd[1] | (cmd[2] << 8); - if (count <= MAX_SAMPLE_BUFFER_SIZE / 2) { - adc_sample_count = count * 2; - dac_sample_count = count * 2; - } else { - error_queue_add(Error::BadParam); - } - } else { - error_queue_add(Error::BadParamSize); + if (EM.assert(run_status == RunStatus::Idle, Error::NotIdle) && + EM.assert(USBSerial::read(&cmd[1], 2) == 2, Error::BadParamSize)) + { + unsigned int count = (cmd[1] | (cmd[2] << 8)) * 2; + if (EM.assert(count <= MAX_SAMPLE_BUFFER_SIZE, Error::BadParam)) { + samplesIn.setSize(count); + samplesOut.setSize(count); } - } else { - error_queue_add(Error::NotIdle); } break; case 'd': - USBSerial::write((uint8_t *)dac_samples.data(), - dac_sample_count * sizeof(dacsample_t)); + USBSerial::write(samplesOut.bytedata(), samplesOut.bytesize()); break; case 'D': - if (USBSerial::read(&cmd[1], 2) == 2) { + if (EM.assert(USBSerial::read(&cmd[1], 2) == 2, Error::BadParamSize)) { unsigned int count = cmd[1] | (cmd[2] << 8); - if (count <= MAX_SIGGEN_BUFFER_SIZE) { - dac2_sample_count = count; - USBSerial::read((uint8_t *)&dac2_samples[0], - dac2_sample_count * sizeof(dacsample_t)); - } else { - error_queue_add(Error::BadParam); + if (EM.assert(count <= MAX_SAMPLE_BUFFER_SIZE, Error::BadParam)) { + samplesSigGen.setSize(count); + USBSerial::read(samplesSigGen.bytedata(), samplesSigGen.bytesize()); } - } else { - error_queue_add(Error::BadParamSize); } break; // 'E' - Reads in and loads the compiled conversion code binary from USB. case 'E': - if (run_status == RunStatus::Idle) { - if (USBSerial::read(&cmd[1], 2) == 2) { - // Only load the binary if it can fit in the memory reserved for it. - unsigned int size = cmd[1] | (cmd[2] << 8); - if (size < sizeof(elf_file_store)) { - USBSerial::read(elf_file_store, size); - elf_entry = ELF::load(elf_file_store); - - if (elf_entry == nullptr) - error_queue_add(Error::BadUserCodeLoad); - } else { - error_queue_add(Error::BadUserCodeSize); - } - } else { - error_queue_add(Error::BadParamSize); + if (EM.assert(run_status == RunStatus::Idle, Error::NotIdle) && + EM.assert(USBSerial::read(&cmd[1], 2) == 2, Error::BadParamSize)) + { + // Only load the binary if it can fit in the memory reserved for it. + unsigned int size = cmd[1] | (cmd[2] << 8); + if (EM.assert(size < sizeof(elf_file_store), Error::BadUserCodeSize)) { + USBSerial::read(elf_file_store, size); + elf_entry = ELF::load(elf_file_store); + + EM.assert(elf_entry != nullptr, Error::BadUserCodeLoad); } - } else { - error_queue_add(Error::NotIdle); } break; @@ -207,7 +154,7 @@ void main_loop() // 'i' - Sends an identifying string to confirm that this is the stmdsp device. case 'i': - USBSerial::write((uint8_t *)"stmdsp", 6); + USBSerial::write(reinterpret_cast("stmdsp"), 6); break; // 'I' - Sends the current run status. @@ -215,7 +162,7 @@ void main_loop() { unsigned char buf[2] = { static_cast(run_status), - static_cast(error_queue_pop()) + static_cast(EM.pop()) }; USBSerial::write(buf, sizeof(buf)); } @@ -224,45 +171,40 @@ void main_loop() // 'M' - Begins continuous sampling, but measures the execution time of the first // sample processing. This duration can be later read through 'm'. case 'M': - if (run_status == RunStatus::Idle) { + if (EM.assert(run_status == RunStatus::Idle, Error::NotIdle)) { run_status = RunStatus::Running; - dac_samples.fill(0); - ADC::start(&adc_samples[0], adc_sample_count, signal_operate_measure); - DAC::start(0, &dac_samples[0], dac_sample_count); - } else { - error_queue_add(Error::NotIdle); + samplesOut.clear(); + ADC::start(samplesIn.data(), samplesIn.size(), signal_operate_measure); + DAC::start(0, samplesOut.data(), samplesOut.size()); } break; // 'm' - Returns the last measured sample processing time, presumably in processor // ticks. case 'm': - USBSerial::write((uint8_t *)&conversion_time_measurement.last, sizeof(rtcnt_t)); + USBSerial::write(reinterpret_cast(&conversion_time_measurement.last), + sizeof(rtcnt_t)); break; // 'R' - Begin continuous sampling/conversion of the ADC. Samples will go through // the conversion code, and will be sent out over the DAC. case 'R': - if (run_status == RunStatus::Idle) { + if (EM.assert(run_status == RunStatus::Idle, Error::NotIdle)) { run_status = RunStatus::Running; - dac_samples.fill(0); - ADC::start(&adc_samples[0], adc_sample_count, signal_operate); - DAC::start(0, &dac_samples[0], dac_sample_count); - } else { - error_queue_add(Error::NotIdle); + samplesOut.clear(); + ADC::start(samplesIn.data(), samplesIn.size(), signal_operate); + DAC::start(0, samplesOut.data(), samplesOut.size()); } break; case 'r': - if (USBSerial::read(&cmd[1], 1) == 1) { + if (EM.assert(USBSerial::read(&cmd[1], 1) == 1, Error::BadParamSize)) { if (cmd[1] == 0xFF) { unsigned char r = static_cast(ADC::getRate()); USBSerial::write(&r, 1); } else { ADC::setRate(static_cast(cmd[1])); } - } else { - error_queue_add(Error::BadParamSize); } break; @@ -276,34 +218,30 @@ void main_loop() break; case 's': - if (dac_samples_new != nullptr) { - auto samps = reinterpret_cast( - const_cast(dac_samples_new)); - dac_samples_new = nullptr; - + if (auto samps = samplesOut.modified(); samps != nullptr) { unsigned char buf[2] = { - static_cast(dac_sample_count / 2 & 0xFF), - static_cast(((dac_sample_count / 2) >> 8) & 0xFF) + static_cast(samplesOut.size() / 2 & 0xFF), + static_cast(((samplesOut.size() / 2) >> 8) & 0xFF) }; USBSerial::write(buf, 2); - unsigned int total = dac_sample_count / 2 * sizeof(dacsample_t); + unsigned int total = samplesOut.bytesize() / 2; unsigned int offset = 0; unsigned char unused; while (total > 512) { - USBSerial::write(samps + offset, 512); + USBSerial::write(reinterpret_cast(samps) + offset, 512); while (USBSerial::read(&unused, 1) == 0); offset += 512; total -= 512; } - USBSerial::write(samps + offset, total); + USBSerial::write(reinterpret_cast(samps) + offset, total); while (USBSerial::read(&unused, 1) == 0); } else { - USBSerial::write((uint8_t *)"\0\0", 2); + USBSerial::write(reinterpret_cast("\0\0"), 2); } break; case 'W': - DAC::start(1, &dac2_samples[0], dac2_sample_count); + DAC::start(1, samplesSigGen.data(), samplesSigGen.size()); break; case 'w': DAC::stop(1); @@ -324,7 +262,7 @@ void conversion_abort() elf_entry = nullptr; DAC::stop(0); ADC::stop(); - error_queue_add(Error::ConversionAborted); + EM.add(Error::ConversionAborted); } THD_FUNCTION(conversionThread, arg) @@ -334,41 +272,23 @@ THD_FUNCTION(conversionThread, arg) while (1) { msg_t message; if (chMBFetchTimeout(&conversionMB, &message, TIME_INFINITE) == MSG_OK) { - adcsample_t *samples = nullptr; - auto halfsize = adc_sample_count / 2; - if (message == MSG_CONVFIRST) { - if (elf_entry) - samples = elf_entry(&adc_samples[0], halfsize); - if (!samples) - samples = &adc_samples[0]; - std::copy(samples, samples + halfsize, &dac_samples[0]); - dac_samples_new = &dac_samples[0]; - } else if (message == MSG_CONVSECOND) { - if (elf_entry) - samples = elf_entry(&adc_samples[halfsize], halfsize); - if (!samples) - samples = &adc_samples[halfsize]; - std::copy(samples, samples + halfsize, &dac_samples[dac_sample_count / 2]); - dac_samples_new = &dac_samples[dac_sample_count / 2]; - } else if (message == MSG_CONVFIRST_MEASURE) { - chTMStartMeasurementX(&conversion_time_measurement); - if (elf_entry) - samples = elf_entry(&adc_samples[0], halfsize); - chTMStopMeasurementX(&conversion_time_measurement); - if (!samples) - samples = &adc_samples[0]; - std::copy(samples, samples + halfsize, &dac_samples[0]); - dac_samples_new = &dac_samples[0]; - } else if (message == MSG_CONVSECOND_MEASURE) { - chTMStartMeasurementX(&conversion_time_measurement); - if (elf_entry) - samples = elf_entry(&adc_samples[halfsize], halfsize); - chTMStopMeasurementX(&conversion_time_measurement); - if (!samples) - samples = &adc_samples[halfsize]; - std::copy(samples, samples + halfsize, &dac_samples[dac_sample_count / 2]); - dac_samples_new = &dac_samples[dac_sample_count / 2]; + auto samples = MSG_FOR_FIRST(message) ? samplesIn.data() : samplesIn.middata(); + auto size = samplesIn.size() / 2; + + if (elf_entry) { + if (!MSG_FOR_MEASURE(message)) { + samples = elf_entry(samples, size); + } else { + chTMStartMeasurementX(&conversion_time_measurement); + samples = elf_entry(samples, size); + chTMStopMeasurementX(&conversion_time_measurement); + } } + + if (MSG_FOR_FIRST(message)) + samplesOut.modify(samples, size); + else + samplesOut.midmodify(samples, size); } } } @@ -378,12 +298,12 @@ void signal_operate(adcsample_t *buffer, [[maybe_unused]] size_t count) if (chMBGetUsedCountI(&conversionMB) > 1) conversion_abort(); else - chMBPostI(&conversionMB, buffer == &adc_samples[0] ? MSG_CONVFIRST : MSG_CONVSECOND); + chMBPostI(&conversionMB, buffer == samplesIn.data() ? MSG_CONVFIRST : MSG_CONVSECOND); } void signal_operate_measure(adcsample_t *buffer, [[maybe_unused]] size_t count) { - chMBPostI(&conversionMB, buffer == &adc_samples[0] ? MSG_CONVFIRST_MEASURE : MSG_CONVSECOND_MEASURE); + chMBPostI(&conversionMB, buffer == samplesIn.data() ? MSG_CONVFIRST_MEASURE : MSG_CONVSECOND_MEASURE); ADC::setOperation(signal_operate); }