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Fix race conditions on SPI and integrate the SPI NOR Flash driver into DFUService (WIP)

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This commit is contained in:
JF
2020-05-11 18:50:37 +02:00
parent 0b8e6c3fa2
commit ee05577dd6
12 changed files with 257 additions and 48 deletions
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11
src/drivers/Spi.cpp
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@@ -5,15 +5,16 @@ using namespace Pinetime::Drivers;
Spi::Spi(SpiMaster& spiMaster, uint8_t pinCsn) :
spiMaster{spiMaster}, pinCsn{pinCsn} {
nrf_gpio_cfg_output(pinCsn);
nrf_gpio_pin_set(pinCsn);
}
bool Spi::Write(const uint8_t *data, size_t size) {
return spiMaster.Write(pinCsn, data, size);
}
bool Spi::Read(uint8_t *data, size_t size) {
return spiMaster.Read(pinCsn, data, size);
bool Spi::Read(uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize) {
return spiMaster.Read(pinCsn, cmd, cmdSize, data, dataSize);
}
void Spi::Sleep() {
@@ -26,4 +27,8 @@ bool Spi::Init() {
return true;
}
bool Spi::WriteCmdAndBuffer(uint8_t *cmd, size_t cmdSize, uint8_t *data, size_t dataSize) {
return spiMaster.WriteCmdAndBuffer(pinCsn, cmd, cmdSize, data, dataSize);
}

3
src/drivers/Spi.h
View File

@@ -21,7 +21,8 @@ namespace Pinetime {
bool Init();
bool Write(const uint8_t* data, size_t size);
bool Read(uint8_t* data, size_t size);
bool Read(uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize);
bool WriteCmdAndBuffer(uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize);
void Sleep();
void Wakeup();

85
src/drivers/SpiMaster.cpp
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@@ -9,7 +9,8 @@ using namespace Pinetime::Drivers;
SpiMaster::SpiMaster(const SpiMaster::SpiModule spi, const SpiMaster::Parameters &params) :
spi{spi}, params{params} {
mutex = xSemaphoreCreateBinary();
ASSERT(mutex != NULL);
}
bool SpiMaster::Init() {
@@ -67,6 +68,8 @@ bool SpiMaster::Init() {
NRFX_IRQ_PRIORITY_SET(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn,2);
NRFX_IRQ_ENABLE(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn);
xSemaphoreGive(mutex);
return true;
}
@@ -93,13 +96,17 @@ void SpiMaster::DisableWorkaroundForFtpan58(NRF_SPIM_Type *spim, uint32_t ppi_ch
NRF_PPI->CH[ppi_channel].EEP = 0;
NRF_PPI->CH[ppi_channel].TEP = 0;
NRF_PPI->CHENSET = ppi_channel;
spiBaseAddress->EVENTS_END = 0;
spim->INTENSET = (1<<6);
spim->INTENSET = (1<<1);
spim->INTENSET = (1<<19);
}
void SpiMaster::OnEndEvent() {
if(!busy) return;
if(currentBufferAddr == 0) {
asm("nop");
return;
}
auto s = currentBufferSize;
if(s > 0) {
@@ -112,7 +119,7 @@ void SpiMaster::OnEndEvent() {
} else {
uint8_t* buffer = nullptr;
size_t size = 0;
busy = false;
if(taskToNotify != nullptr) {
@@ -122,11 +129,14 @@ void SpiMaster::OnEndEvent() {
}
nrf_gpio_pin_set(this->pinCsn);
currentBufferAddr = 0;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreGiveFromISR(mutex, &xHigherPriorityTaskWoken);
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}
}
void SpiMaster::OnStartedEvent() {
if(!busy) return;
}
void SpiMaster::PrepareTx(const volatile uint32_t bufferAddress, const volatile size_t size) {
@@ -139,7 +149,7 @@ void SpiMaster::PrepareTx(const volatile uint32_t bufferAddress, const volatile
spiBaseAddress->EVENTS_END = 0;
}
void SpiMaster::PrepareRx(const volatile uint32_t bufferAddress, const volatile size_t size) {
void SpiMaster::PrepareRx(const volatile uint32_t cmdAddress, const volatile size_t cmdSize, const volatile uint32_t bufferAddress, const volatile size_t size) {
spiBaseAddress->TXD.PTR = 0;
spiBaseAddress->TXD.MAXCNT = 0;
spiBaseAddress->TXD.LIST = 0;
@@ -152,10 +162,10 @@ void SpiMaster::PrepareRx(const volatile uint32_t bufferAddress, const volatile
bool SpiMaster::Write(uint8_t pinCsn, const uint8_t *data, size_t size) {
if(data == nullptr) return false;
auto ok = xSemaphoreTake(mutex, portMAX_DELAY);
ASSERT(ok == true);
taskToNotify = xTaskGetCurrentTaskHandle();
while(busy) {
asm("nop");
}
this->pinCsn = pinCsn;
@@ -169,7 +179,6 @@ bool SpiMaster::Write(uint8_t pinCsn, const uint8_t *data, size_t size) {
currentBufferAddr = (uint32_t)data;
currentBufferSize = size;
busy = true;
auto currentSize = std::min((size_t)255, (size_t)currentBufferSize);
PrepareTx(currentBufferAddr, currentSize);
@@ -179,34 +188,42 @@ bool SpiMaster::Write(uint8_t pinCsn, const uint8_t *data, size_t size) {
if(size == 1) {
while (spiBaseAddress->EVENTS_END == 0);
busy = false;
nrf_gpio_pin_set(this->pinCsn);
currentBufferAddr = 0;
xSemaphoreGive(mutex);
}
return true;
}
bool SpiMaster::Read(uint8_t pinCsn, uint8_t *data, size_t size) {
while(busy) {
asm("nop");
}
bool SpiMaster::Read(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize) {
xSemaphoreTake(mutex, portMAX_DELAY);
taskToNotify = nullptr;
this->pinCsn = pinCsn;
SetupWorkaroundForFtpan58(spiBaseAddress, 0,0);
DisableWorkaroundForFtpan58(spiBaseAddress, 0,0);
spiBaseAddress->INTENCLR = (1<<6);
spiBaseAddress->INTENCLR = (1<<1);
spiBaseAddress->INTENCLR = (1<<19);
nrf_gpio_pin_clear(this->pinCsn);
currentBufferAddr = 0;
currentBufferSize = 0;
busy = true;
PrepareRx((uint32_t)data, size);
PrepareTx((uint32_t)cmd, cmdSize);
spiBaseAddress->TASKS_START = 1;
while (spiBaseAddress->EVENTS_END == 0);
PrepareRx((uint32_t)cmd, cmdSize, (uint32_t)data, dataSize);
spiBaseAddress->TASKS_START = 1;
while (spiBaseAddress->EVENTS_END == 0);
nrf_gpio_pin_set(this->pinCsn);
busy = false;
xSemaphoreGive(mutex);
return true;
}
@@ -225,5 +242,37 @@ void SpiMaster::Wakeup() {
Init();
}
bool SpiMaster::WriteCmdAndBuffer(uint8_t pinCsn, uint8_t *cmd, size_t cmdSize, uint8_t *data, size_t dataSize) {
xSemaphoreTake(mutex, portMAX_DELAY);
taskToNotify = nullptr;
this->pinCsn = pinCsn;
DisableWorkaroundForFtpan58(spiBaseAddress, 0,0);
spiBaseAddress->INTENCLR = (1<<6);
spiBaseAddress->INTENCLR = (1<<1);
spiBaseAddress->INTENCLR = (1<<19);
nrf_gpio_pin_clear(this->pinCsn);
currentBufferAddr = 0;
currentBufferSize = 0;
PrepareTx((uint32_t)cmd, cmdSize);
spiBaseAddress->TASKS_START = 1;
while (spiBaseAddress->EVENTS_END == 0);
PrepareTx((uint32_t)data, dataSize);
spiBaseAddress->TASKS_START = 1;
while (spiBaseAddress->EVENTS_END == 0);
nrf_gpio_pin_set(this->pinCsn);
xSemaphoreGive(mutex);
return true;
}

11
src/drivers/SpiMaster.h
View File

@@ -5,6 +5,7 @@
#include <array>
#include <atomic>
#include <task.h>
#include <semphr.h>
#include "BufferProvider.h"
namespace Pinetime {
@@ -32,7 +33,9 @@ namespace Pinetime {
bool Init();
bool Write(uint8_t pinCsn, const uint8_t* data, size_t size);
bool Read(uint8_t pinCsn, uint8_t* data, size_t size);
bool Read(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize);
bool WriteCmdAndBuffer(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize);
void OnStartedEvent();
void OnEndEvent();
@@ -44,7 +47,7 @@ namespace Pinetime {
void SetupWorkaroundForFtpan58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
void DisableWorkaroundForFtpan58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
void PrepareTx(const volatile uint32_t bufferAddress, const volatile size_t size);
void PrepareRx(const volatile uint32_t bufferAddress, const volatile size_t size);
void PrepareRx(const volatile uint32_t cmdAddress, const volatile size_t cmdSize, const volatile uint32_t bufferAddress, const volatile size_t size);
NRF_SPIM_Type * spiBaseAddress;
uint8_t pinCsn;
@@ -52,10 +55,12 @@ namespace Pinetime {
SpiMaster::SpiModule spi;
SpiMaster::Parameters params;
volatile bool busy = false;
// volatile bool busy = false;
volatile uint32_t currentBufferAddr = 0;
volatile size_t currentBufferSize = 0;
volatile TaskHandle_t taskToNotify;
SemaphoreHandle_t mutex;
};
}
}

108
src/drivers/SpiNorFlash.cpp
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@@ -11,16 +11,8 @@ SpiNorFlash::SpiNorFlash(Spi& spi) : spi{spi} {
}
void SpiNorFlash::Init() {
uint8_t cmd = 0x9F;
spi.Write(&cmd, 1);
uint8_t data[3];
data[0] = 0;
data[1] = 0;
data[2] = 0;
spi.Read(data, 3);
NRF_LOG_INFO("Manufacturer : %d, Device : %d", data[0], (data[1] + (data[2]<<8)));
auto id = ReadIdentificaion();
NRF_LOG_INFO("[SPI FLASH] Manufacturer : %d, Memory type : %d, memory density : %d", id.manufacturer, id.type, id.density);
}
void SpiNorFlash::Uninit() {
@@ -34,3 +26,99 @@ void SpiNorFlash::Sleep() {
void SpiNorFlash::Wakeup() {
}
SpiNorFlash::Identification SpiNorFlash::ReadIdentificaion() {
auto cmd = static_cast<uint8_t>(Commands::ReadIdentification);
Identification identification;
spi.Read(&cmd, 1, reinterpret_cast<uint8_t *>(&identification), sizeof(Identification));
return identification;
}
uint8_t SpiNorFlash::ReadStatusRegister() {
auto cmd = static_cast<uint8_t>(Commands::ReadStatusRegister);
uint8_t status;
spi.Read(&cmd, sizeof(cmd), &status, sizeof(uint8_t));
return status;
}
bool SpiNorFlash::WriteInProgress() {
return (ReadStatusRegister() & 0x01u) == 0x01u;
}
bool SpiNorFlash::WriteEnabled() {
return (ReadStatusRegister() & 0x02u) == 0x02u;
}
uint8_t SpiNorFlash::ReadConfigurationRegister() {
auto cmd = static_cast<uint8_t>(Commands::ReadConfigurationRegister);
uint8_t status;
spi.Read(&cmd, sizeof(cmd), &status, sizeof(uint8_t));
return status;
}
void SpiNorFlash::Read(uint32_t address, uint8_t *buffer, size_t size) {
static constexpr uint8_t cmdSize = 4;
uint8_t cmd[cmdSize] = { static_cast<uint8_t>(Commands::Read), (uint8_t)(address >> 16U), (uint8_t)(address >> 8U),
(uint8_t)address };
spi.Read(reinterpret_cast<uint8_t *>(&cmd), cmdSize, buffer, size);
}
void SpiNorFlash::WriteEnable() {
auto cmd = static_cast<uint8_t>(Commands::WriteEnable);
spi.Read(&cmd, sizeof(cmd), nullptr, 0);
}
void SpiNorFlash::SectorErase(uint32_t sectorAddress) {
static constexpr uint8_t cmdSize = 4;
uint8_t cmd[cmdSize] = { static_cast<uint8_t>(Commands::SectorErase), (uint8_t)(sectorAddress >> 16U), (uint8_t)(sectorAddress >> 8U),
(uint8_t)sectorAddress };
WriteEnable();
while(!WriteEnabled()) vTaskDelay(1);
spi.Read(reinterpret_cast<uint8_t *>(&cmd), cmdSize, nullptr, 0);
while(WriteInProgress()) vTaskDelay(1);
}
uint8_t SpiNorFlash::ReadSecurityRegister() {
auto cmd = static_cast<uint8_t>(Commands::ReadSecurityRegister);
uint8_t status;
spi.Read(&cmd, sizeof(cmd), &status, sizeof(uint8_t));
return status;
}
bool SpiNorFlash::ProgramFailed() {
return (ReadSecurityRegister() & 0x20u) == 0x20u;
}
bool SpiNorFlash::EraseFailed() {
return (ReadSecurityRegister() & 0x40u) == 0x40u;
}
void SpiNorFlash::Write(uint32_t address, uint8_t *buffer, size_t size) {
static constexpr uint8_t cmdSize = 4;
size_t len = size;
uint32_t addr = address;
uint8_t* b = buffer;
while(len > 0) {
uint32_t pageLimit = (addr & ~(pageSize - 1u)) + pageSize;
uint32_t toWrite = pageLimit - addr > len ? len : pageLimit - addr;
uint8_t cmd[cmdSize] = { static_cast<uint8_t>(Commands::PageProgram), (uint8_t)(addr >> 16U), (uint8_t)(addr >> 8U),
(uint8_t)addr };
WriteEnable();
while(!WriteEnabled()) vTaskDelay(1);
spi.WriteCmdAndBuffer(cmd, cmdSize, b, toWrite);
while(WriteInProgress()) vTaskDelay(1);
addr += toWrite;
b += toWrite;
len -= toWrite;
}
}

32
src/drivers/SpiNorFlash.h
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@@ -12,6 +12,26 @@ namespace Pinetime {
SpiNorFlash(SpiNorFlash&&) = delete;
SpiNorFlash& operator=(SpiNorFlash&&) = delete;
typedef struct __attribute__((packed)) {
uint8_t manufacturer = 0;
uint8_t type = 0;
uint8_t density = 0;
} Identification;
Identification ReadIdentificaion();
uint8_t ReadStatusRegister();
bool WriteInProgress();
bool WriteEnabled();
uint8_t ReadConfigurationRegister();
void Read(uint32_t address, uint8_t* buffer, size_t size);
void Write(uint32_t address, uint8_t *buffer, size_t size);
void WriteEnable();
void SectorErase(uint32_t sectorAddress);
uint8_t ReadSecurityRegister();
bool ProgramFailed();
bool EraseFailed();
void Init();
void Uninit();
@@ -19,6 +39,18 @@ namespace Pinetime {
void Sleep();
void Wakeup();
private:
enum class Commands : uint8_t {
PageProgram = 0x02,
Read = 0x03,
ReadStatusRegister = 0x05,
WriteEnable = 0x06,
ReadConfigurationRegister = 0x15,
SectorErase = 0x20,
ReadSecurityRegister = 0x2B,
ReadIdentification = 0x9F,
};
static constexpr uint16_t pageSize = 256;
Spi& spi;
};