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Use indexed notifications for I2C
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Browse Source
This commit is contained in:
Ben V. Brown
2025-02-24 20:32:26 +11:00
parent dd6c71a385
commit 3a6a22c351
1 changed files with 9 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
source/Core/BSP/Pinecilv2/I2C_Wrapper.cpp
View File

@@ -20,6 +20,7 @@ extern "C" {
SemaphoreHandle_t FRToSI2C::I2CSemaphore = nullptr; SemaphoreHandle_t FRToSI2C::I2CSemaphore = nullptr;
StaticSemaphore_t FRToSI2C::xSemaphoreBuffer; StaticSemaphore_t FRToSI2C::xSemaphoreBuffer;
#define I2C_TIME_OUT (uint16_t)(12000) #define I2C_TIME_OUT (uint16_t)(12000)
#define I2C_NOTIFY_INDEX 1
#define I2C_TX_FIFO_ADDR (0x4000A300 + 0x88) #define I2C_TX_FIFO_ADDR (0x4000A300 + 0x88)
#define I2C_RX_FIFO_ADDR (0x4000A300 + 0x8C) #define I2C_RX_FIFO_ADDR (0x4000A300 + 0x8C)
@@ -123,7 +124,7 @@ void FRToSI2C::CpltCallback() {
BaseType_t xHigherPriorityTaskWoken = pdFALSE; BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xSemaphoreGiveFromISR(I2CSemaphore, &xHigherPriorityTaskWoken); xSemaphoreGiveFromISR(I2CSemaphore, &xHigherPriorityTaskWoken);
xTaskNotifyFromISR(IRQTaskWaitingHandle, IRQFailureMarker ? 2 : 1, eSetValueWithOverwrite, &xHigherPriorityTaskWoken); xTaskNotifyIndexedFromISR(IRQTaskWaitingHandle, I2C_NOTIFY_INDEX, IRQFailureMarker ? 2 : 1, eSetValueWithOverwrite, &xHigherPriorityTaskWoken);
portYIELD_FROM_ISR(xHigherPriorityTaskWoken); portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
} }
@@ -171,12 +172,14 @@ bool FRToSI2C::Mem_Read(uint16_t DevAddress, uint16_t read_address, uint8_t *p_b
// Wait for transfer in background // Wait for transfer in background
uint32_t result = 0; uint32_t result = 0;
xTaskNotifyWait(0xFFFFFFFF, 0xFFFFFFFF, &result, TICKS_100MS); xTaskNotifyWaitIndexed(I2C_NOTIFY_INDEX, 0xFFFFFFFF, 0xFFFFFFFF, &result, 0xFFFFFFFF);
CPU_Interrupt_Enable(BLE_IRQn); CPU_Interrupt_Enable(BLE_IRQn);
return result == 1; return result == 1;
} }
bool FRToSI2C::Mem_Write(uint16_t DevAddress, uint16_t MemAddress, uint8_t *p_buffer, uint16_t number_of_byte) { bool FRToSI2C::Mem_Write(uint16_t DevAddress, uint16_t MemAddress, uint8_t *p_buffer, uint16_t number_of_byte) {
if (!lock()) { if (!lock()) {
return false; return false;
} }
@@ -208,14 +211,15 @@ bool FRToSI2C::Mem_Write(uint16_t DevAddress, uint16_t MemAddress, uint8_t *p_bu
i2c_irq_tx_fifo_low(); i2c_irq_tx_fifo_low();
CPU_Interrupt_Disable(BLE_IRQn); CPU_Interrupt_Disable(BLE_IRQn); // Shut up BLE while we do the transfer
// Start // Start
I2C_Enable(I2C0_ID); I2C_Enable(I2C0_ID);
// Wait for transfer in background // Wait for transfer in background
uint32_t result = 0; uint32_t result = 0;
xTaskNotifyWait(0xFFFFFFFF, 0xFFFFFFFF, &result, TICKS_100MS); xTaskNotifyWaitIndexed(I2C_NOTIFY_INDEX, 0xFFFFFFFF, 0xFFFFFFFF, &result, 0xFFFFFFFF);
CPU_Interrupt_Enable(BLE_IRQn); CPU_Interrupt_Enable(BLE_IRQn); // Now BLE can run
return result == 1; return result == 1;
} }