Ram Gandikota
FRDM K64F Metronome
Diff: easy-connect/mcr20a-rf-driver/source/MCR20Drv.c
- Revision:
- 0:dbad57390bd1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/easy-connect/mcr20a-rf-driver/source/MCR20Drv.c Sun May 14 18:37:05 2017 +0000
@@ -0,0 +1,675 @@
+/*!
+* Copyright (c) 2015, Freescale Semiconductor, Inc.
+* All rights reserved.
+*
+* \file MCR20Drv.c
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* o Redistributions of source code must retain the above copyright notice, this list
+* of conditions and the following disclaimer.
+*
+* o Redistributions in binary form must reproduce the above copyright notice, this
+* list of conditions and the following disclaimer in the documentation and/or
+* other materials provided with the distribution.
+*
+* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+* contributors may be used to endorse or promote products derived from this
+* software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+/*****************************************************************************
+* INCLUDED HEADERS *
+*---------------------------------------------------------------------------*
+* Add to this section all the headers that this module needs to include. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+#include "platform/arm_hal_interrupt.h"
+#include "MCR20Drv.h"
+#include "MCR20Reg.h"
+#include "XcvrSpi.h"
+
+
+/*****************************************************************************
+* PRIVATE VARIABLES *
+*---------------------------------------------------------------------------*
+* Add to this section all the variables and constants that have local *
+* (file) scope. *
+* Each of this declarations shall be preceded by the 'static' keyword. *
+* These variables / constants cannot be accessed outside this module. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+uint32_t mPhyIrqDisableCnt = 1;
+
+/*****************************************************************************
+* PUBLIC VARIABLES *
+*---------------------------------------------------------------------------*
+* Add to this section all the variables and constants that have global *
+* (project) scope. *
+* These variables / constants can be accessed outside this module. *
+* These variables / constants shall be preceded by the 'extern' keyword in *
+* the interface header. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+/*****************************************************************************
+* PRIVATE FUNCTIONS PROTOTYPES *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions prototypes that have local (file) *
+* scope. *
+* These functions cannot be accessed outside this module. *
+* These declarations shall be preceded by the 'static' keyword. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+/*****************************************************************************
+* PRIVATE FUNCTIONS *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions that have local (file) scope. *
+* These functions cannot be accessed outside this module. *
+* These definitions shall be preceded by the 'static' keyword. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+
+/*****************************************************************************
+* PUBLIC FUNCTIONS *
+*---------------------------------------------------------------------------*
+* Add to this section all the functions that have global (project) scope. *
+* These functions can be accessed outside this module. *
+* These functions shall have their declarations (prototypes) within the *
+* interface header file and shall be preceded by the 'extern' keyword. *
+*---------------------------------------------------------------------------*
+*****************************************************************************/
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_Init
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_Init
+(
+void
+)
+{
+ xcvr_spi_init(gXcvrSpiInstance_c);
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrDeassertCS_d();
+ MCR20Drv_RST_B_Deassert();
+ RF_IRQ_Init();
+ RF_IRQ_Disable();
+ mPhyIrqDisableCnt = 1;
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_DirectAccessSPIWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_DirectAccessSPIWrite
+(
+uint8_t address,
+uint8_t value
+)
+{
+ uint16_t txData;
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = (address & TransceiverSPI_DirectRegisterAddressMask);
+ txData |= value << 8;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t *)&txData, 0, sizeof(txData));
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_DirectAccessSPIMultiByteWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_DirectAccessSPIMultiByteWrite
+(
+uint8_t startAddress,
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint8_t txData;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = (startAddress & TransceiverSPI_DirectRegisterAddressMask);
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, &txData, 0, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, byteArray, 0, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_PB_SPIByteWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_PB_SPIByteWrite
+(
+uint8_t address,
+uint8_t value
+)
+{
+ uint32_t txData;
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_WriteSelect |
+ TransceiverSPI_PacketBuffAccessSelect |
+ TransceiverSPI_PacketBuffByteModeSelect;
+ txData |= (address) << 8;
+ txData |= (value) << 16;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)&txData, 0, 3);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_PB_SPIBurstWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_PB_SPIBurstWrite
+(
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint8_t txData;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_WriteSelect |
+ TransceiverSPI_PacketBuffAccessSelect |
+ TransceiverSPI_PacketBuffBurstModeSelect;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, &txData, 0, 1);
+ xcvr_spi_transfer(gXcvrSpiInstance_c, byteArray, 0, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_DirectAccessSPIRead
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+
+uint8_t MCR20Drv_DirectAccessSPIRead
+(
+uint8_t address
+)
+{
+ uint8_t txData;
+ uint8_t rxData;
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrAssertCS_d();
+
+ txData = (address & TransceiverSPI_DirectRegisterAddressMask) |
+ TransceiverSPI_ReadSelect;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, &txData, 0, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, 0, &rxData, sizeof(rxData));
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+
+ return rxData;
+
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_DirectAccessSPIMultyByteRead
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+uint8_t MCR20Drv_DirectAccessSPIMultiByteRead
+(
+uint8_t startAddress,
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint8_t txData;
+ uint8_t phyIRQSTS1;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return 0;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrAssertCS_d();
+
+ txData = (startAddress & TransceiverSPI_DirectRegisterAddressMask) |
+ TransceiverSPI_ReadSelect;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, &txData, &phyIRQSTS1, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, 0, byteArray, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+
+ return phyIRQSTS1;
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_PB_SPIBurstRead
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+uint8_t MCR20Drv_PB_SPIBurstRead
+(
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint8_t txData;
+ uint8_t phyIRQSTS1;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return 0;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_ReadSelect |
+ TransceiverSPI_PacketBuffAccessSelect |
+ TransceiverSPI_PacketBuffBurstModeSelect;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, &txData, &phyIRQSTS1, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, 0, byteArray, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+
+ return phyIRQSTS1;
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IndirectAccessSPIWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_IndirectAccessSPIWrite
+(
+uint8_t address,
+uint8_t value
+)
+{
+ uint32_t txData;
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_IARIndexReg;
+ txData |= (address) << 8;
+ txData |= (value) << 16;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)&txData, 0, 3);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IndirectAccessSPIMultiByteWrite
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_IndirectAccessSPIMultiByteWrite
+(
+uint8_t startAddress,
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint16_t txData;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 16000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_IARIndexReg;
+ txData |= (startAddress) << 8;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)&txData, 0, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)byteArray, 0, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IndirectAccessSPIRead
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+uint8_t MCR20Drv_IndirectAccessSPIRead
+(
+uint8_t address
+)
+{
+ uint16_t txData;
+ uint8_t rxData;
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrAssertCS_d();
+
+ txData = TransceiverSPI_IARIndexReg | TransceiverSPI_ReadSelect;
+ txData |= (address) << 8;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)&txData, 0, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, 0, &rxData, sizeof(rxData));
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+
+ return rxData;
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IndirectAccessSPIMultiByteRead
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_IndirectAccessSPIMultiByteRead
+(
+uint8_t startAddress,
+uint8_t * byteArray,
+uint8_t numOfBytes
+)
+{
+ uint16_t txData;
+
+ if( (numOfBytes == 0) || (byteArray == 0) )
+ {
+ return;
+ }
+
+ ProtectFromMCR20Interrupt();
+
+ xcvr_spi_configure_speed(gXcvrSpiInstance_c, 8000000);
+
+ gXcvrAssertCS_d();
+
+ txData = (TransceiverSPI_IARIndexReg | TransceiverSPI_ReadSelect);
+ txData |= (startAddress) << 8;
+
+ xcvr_spi_transfer(gXcvrSpiInstance_c, (uint8_t*)&txData, 0, sizeof(txData));
+ xcvr_spi_transfer(gXcvrSpiInstance_c, 0, byteArray, numOfBytes);
+
+ gXcvrDeassertCS_d();
+ UnprotectFromMCR20Interrupt();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IsIrqPending
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+uint32_t MCR20Drv_IsIrqPending
+(
+void
+)
+{
+ return RF_isIRQ_Pending();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IRQ_Disable
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_IRQ_Disable
+(
+void
+)
+{
+ platform_enter_critical();
+
+ if( mPhyIrqDisableCnt == 0 )
+ {
+ RF_IRQ_Disable();
+ }
+
+ mPhyIrqDisableCnt++;
+
+ platform_exit_critical();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_IRQ_Enable
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_IRQ_Enable
+(
+void
+)
+{
+ platform_enter_critical();
+
+ if( mPhyIrqDisableCnt )
+ {
+ mPhyIrqDisableCnt--;
+
+ if( mPhyIrqDisableCnt == 0 )
+ {
+ RF_IRQ_Enable();
+ }
+ }
+
+ platform_exit_critical();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_RST_Assert
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_RST_B_Assert
+(
+void
+)
+{
+ RF_RST_Set(0);
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_RST_Deassert
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_RST_B_Deassert
+(
+void
+)
+{
+ RF_RST_Set(1);
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_SoftRST_Assert
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_SoftRST_Assert
+(
+void
+)
+{
+ MCR20Drv_IndirectAccessSPIWrite(SOFT_RESET, (0x80));
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_SoftRST_Deassert
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_SoftRST_Deassert
+(
+void
+)
+{
+ MCR20Drv_IndirectAccessSPIWrite(SOFT_RESET, (0x00));
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_Soft_RESET
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_Soft_RESET
+(
+void
+)
+{
+ //assert SOG_RST
+ MCR20Drv_IndirectAccessSPIWrite(SOFT_RESET, (0x80));
+
+ //deassert SOG_RST
+ MCR20Drv_IndirectAccessSPIWrite(SOFT_RESET, (0x00));
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_RESET
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_RESET
+(
+void
+)
+{
+ volatile uint32_t delay = 1000;
+ //assert RST_B
+ MCR20Drv_RST_B_Assert();
+
+ while(delay--);
+
+ //deassert RST_B
+ MCR20Drv_RST_B_Deassert();
+}
+
+/*---------------------------------------------------------------------------
+* Name: MCR20Drv_Set_CLK_OUT_Freq
+* Description: -
+* Parameters: -
+* Return: -
+*---------------------------------------------------------------------------*/
+void MCR20Drv_Set_CLK_OUT_Freq
+(
+uint8_t freqDiv
+)
+{
+ uint8_t clkOutCtrlReg = (freqDiv & cCLK_OUT_DIV_Mask) | cCLK_OUT_EN | cCLK_OUT_EXTEND;
+
+ if(freqDiv == gCLK_OUT_FREQ_DISABLE)
+ {
+ clkOutCtrlReg = (cCLK_OUT_EXTEND | gCLK_OUT_FREQ_4_MHz); //reset value with clock out disabled
+ }
+
+ MCR20Drv_DirectAccessSPIWrite((uint8_t) CLK_OUT_CTRL, clkOutCtrlReg);
+}