//***************************************************************************** // // i2c.h // // Prototypes for the I2C Driver. // // Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ // // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // // Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // // 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. // // Neither the name of Texas Instruments Incorporated 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 // OWNER 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. // //***************************************************************************** #ifndef __DRIVERLIB_I2C_H__ #define __DRIVERLIB_I2C_H__ //***************************************************************************** // // If building with a C++ compiler, make all of the definitions in this header // have a C binding. // //***************************************************************************** #ifdef __cplusplus extern "C" { #endif //***************************************************************************** // // Defines for the API. // //***************************************************************************** //***************************************************************************** // // Interrupt defines. // //***************************************************************************** #define I2C_INT_MASTER 0x00000001 #define I2C_INT_SLAVE 0x00000002 //***************************************************************************** // // I2C Master commands. // //***************************************************************************** #define I2C_MASTER_CMD_SINGLE_SEND \ 0x00000007 #define I2C_MASTER_CMD_SINGLE_RECEIVE \ 0x00000007 #define I2C_MASTER_CMD_BURST_SEND_START \ 0x00000003 #define I2C_MASTER_CMD_BURST_SEND_CONT \ 0x00000001 #define I2C_MASTER_CMD_BURST_SEND_FINISH \ 0x00000005 #define I2C_MASTER_CMD_BURST_SEND_STOP \ 0x00000004 #define I2C_MASTER_CMD_BURST_SEND_ERROR_STOP \ 0x00000004 #define I2C_MASTER_CMD_BURST_RECEIVE_START \ 0x0000000b #define I2C_MASTER_CMD_BURST_RECEIVE_CONT \ 0x00000009 #define I2C_MASTER_CMD_BURST_RECEIVE_FINISH \ 0x00000005 #define I2C_MASTER_CMD_BURST_RECEIVE_ERROR_STOP \ 0x00000004 #define I2C_MASTER_CMD_QUICK_COMMAND \ 0x00000027 #define I2C_MASTER_CMD_HS_MASTER_CODE_SEND \ 0x00000013 #define I2C_MASTER_CMD_FIFO_SINGLE_SEND \ 0x00000046 #define I2C_MASTER_CMD_FIFO_SINGLE_RECEIVE \ 0x00000046 #define I2C_MASTER_CMD_FIFO_BURST_SEND_START \ 0x00000042 #define I2C_MASTER_CMD_FIFO_BURST_SEND_CONT \ 0x00000040 #define I2C_MASTER_CMD_FIFO_BURST_SEND_FINISH \ 0x00000044 #define I2C_MASTER_CMD_FIFO_BURST_SEND_ERROR_STOP \ 0x00000004 #define I2C_MASTER_CMD_FIFO_BURST_RECEIVE_START \ 0x0000004a #define I2C_MASTER_CMD_FIFO_BURST_RECEIVE_CONT \ 0x00000048 #define I2C_MASTER_CMD_FIFO_BURST_RECEIVE_FINISH \ 0x00000044 #define I2C_MASTER_CMD_FIFO_BURST_RECEIVE_ERROR_STOP \ 0x00000004 //***************************************************************************** // // I2C Master glitch filter configuration. // //***************************************************************************** #define I2C_MASTER_GLITCH_FILTER_DISABLED \ 0 #define I2C_MASTER_GLITCH_FILTER_1 \ 0x00010000 #define I2C_MASTER_GLITCH_FILTER_2 \ 0x00020000 #define I2C_MASTER_GLITCH_FILTER_3 \ 0x00030000 #define I2C_MASTER_GLITCH_FILTER_4 \ 0x00040000 #define I2C_MASTER_GLITCH_FILTER_8 \ 0x00050000 #define I2C_MASTER_GLITCH_FILTER_16 \ 0x00060000 #define I2C_MASTER_GLITCH_FILTER_32 \ 0x00070000 //***************************************************************************** // // I2C Master error status. // //***************************************************************************** #define I2C_MASTER_ERR_NONE 0 #define I2C_MASTER_ERR_ADDR_ACK 0x00000004 #define I2C_MASTER_ERR_DATA_ACK 0x00000008 #define I2C_MASTER_ERR_ARB_LOST 0x00000010 #define I2C_MASTER_ERR_CLK_TOUT 0x00000080 //***************************************************************************** // // I2C Slave action requests // //***************************************************************************** #define I2C_SLAVE_ACT_NONE 0 #define I2C_SLAVE_ACT_RREQ 0x00000001 // Master has sent data #define I2C_SLAVE_ACT_TREQ 0x00000002 // Master has requested data #define I2C_SLAVE_ACT_RREQ_FBR 0x00000005 // Master has sent first byte #define I2C_SLAVE_ACT_OWN2SEL 0x00000008 // Master requested secondary slave #define I2C_SLAVE_ACT_QCMD 0x00000010 // Master has sent a Quick Command #define I2C_SLAVE_ACT_QCMD_DATA 0x00000020 // Master Quick Command value //***************************************************************************** // // Miscellaneous I2C driver definitions. // //***************************************************************************** #define I2C_MASTER_MAX_RETRIES 1000 // Number of retries //***************************************************************************** // // I2C Master interrupts. // //***************************************************************************** #define I2C_MASTER_INT_RX_FIFO_FULL \ 0x00000800 // RX FIFO Full Interrupt #define I2C_MASTER_INT_TX_FIFO_EMPTY \ 0x00000400 // TX FIFO Empty Interrupt #define I2C_MASTER_INT_RX_FIFO_REQ \ 0x00000200 // RX FIFO Request Interrupt #define I2C_MASTER_INT_TX_FIFO_REQ \ 0x00000100 // TX FIFO Request Interrupt #define I2C_MASTER_INT_ARB_LOST \ 0x00000080 // Arb Lost Interrupt #define I2C_MASTER_INT_STOP 0x00000040 // Stop Condition Interrupt #define I2C_MASTER_INT_START 0x00000020 // Start Condition Interrupt #define I2C_MASTER_INT_NACK 0x00000010 // Addr/Data NACK Interrupt #define I2C_MASTER_INT_TX_DMA_DONE \ 0x00000008 // TX DMA Complete Interrupt #define I2C_MASTER_INT_RX_DMA_DONE \ 0x00000004 // RX DMA Complete Interrupt #define I2C_MASTER_INT_TIMEOUT 0x00000002 // Clock Timeout Interrupt #define I2C_MASTER_INT_DATA 0x00000001 // Data Interrupt //***************************************************************************** // // I2C Slave interrupts. // //***************************************************************************** #define I2C_SLAVE_INT_RX_FIFO_FULL \ 0x00000100 // RX FIFO Full Interrupt #define I2C_SLAVE_INT_TX_FIFO_EMPTY \ 0x00000080 // TX FIFO Empty Interrupt #define I2C_SLAVE_INT_RX_FIFO_REQ \ 0x00000040 // RX FIFO Request Interrupt #define I2C_SLAVE_INT_TX_FIFO_REQ \ 0x00000020 // TX FIFO Request Interrupt #define I2C_SLAVE_INT_TX_DMA_DONE \ 0x00000010 // TX DMA Complete Interrupt #define I2C_SLAVE_INT_RX_DMA_DONE \ 0x00000008 // RX DMA Complete Interrupt #define I2C_SLAVE_INT_STOP 0x00000004 // Stop Condition Interrupt #define I2C_SLAVE_INT_START 0x00000002 // Start Condition Interrupt #define I2C_SLAVE_INT_DATA 0x00000001 // Data Interrupt //***************************************************************************** // // I2C Slave FIFO configuration macros. // //***************************************************************************** #define I2C_SLAVE_TX_FIFO_ENABLE \ 0x00000002 #define I2C_SLAVE_RX_FIFO_ENABLE \ 0x00000004 //***************************************************************************** // // I2C FIFO configuration macros. // //***************************************************************************** #define I2C_FIFO_CFG_TX_MASTER 0x00000000 #define I2C_FIFO_CFG_TX_SLAVE 0x00008000 #define I2C_FIFO_CFG_RX_MASTER 0x00000000 #define I2C_FIFO_CFG_RX_SLAVE 0x80000000 #define I2C_FIFO_CFG_TX_MASTER_DMA \ 0x00002000 #define I2C_FIFO_CFG_TX_SLAVE_DMA \ 0x0000a000 #define I2C_FIFO_CFG_RX_MASTER_DMA \ 0x20000000 #define I2C_FIFO_CFG_RX_SLAVE_DMA \ 0xa0000000 #define I2C_FIFO_CFG_TX_NO_TRIG 0x00000000 #define I2C_FIFO_CFG_TX_TRIG_1 0x00000001 #define I2C_FIFO_CFG_TX_TRIG_2 0x00000002 #define I2C_FIFO_CFG_TX_TRIG_3 0x00000003 #define I2C_FIFO_CFG_TX_TRIG_4 0x00000004 #define I2C_FIFO_CFG_TX_TRIG_5 0x00000005 #define I2C_FIFO_CFG_TX_TRIG_6 0x00000006 #define I2C_FIFO_CFG_TX_TRIG_7 0x00000007 #define I2C_FIFO_CFG_TX_TRIG_8 0x00000008 #define I2C_FIFO_CFG_RX_NO_TRIG 0x00000000 #define I2C_FIFO_CFG_RX_TRIG_1 0x00010000 #define I2C_FIFO_CFG_RX_TRIG_2 0x00020000 #define I2C_FIFO_CFG_RX_TRIG_3 0x00030000 #define I2C_FIFO_CFG_RX_TRIG_4 0x00040000 #define I2C_FIFO_CFG_RX_TRIG_5 0x00050000 #define I2C_FIFO_CFG_RX_TRIG_6 0x00060000 #define I2C_FIFO_CFG_RX_TRIG_7 0x00070000 #define I2C_FIFO_CFG_RX_TRIG_8 0x00080000 //***************************************************************************** // // I2C FIFO status. // //***************************************************************************** #define I2C_FIFO_RX_BELOW_TRIG_LEVEL \ 0x00040000 #define I2C_FIFO_RX_FULL 0x00020000 #define I2C_FIFO_RX_EMPTY 0x00010000 #define I2C_FIFO_TX_BELOW_TRIG_LEVEL \ 0x00000004 #define I2C_FIFO_TX_FULL 0x00000002 #define I2C_FIFO_TX_EMPTY 0x00000001 //***************************************************************************** // // Prototypes for the APIs. // //***************************************************************************** extern void I2CIntRegister(uint32_t ui32Base, void(pfnHandler)(void)); extern void I2CIntUnregister(uint32_t ui32Base); extern void I2CTxFIFOConfigSet(uint32_t ui32Base, uint32_t ui32Config); extern void I2CTxFIFOFlush(uint32_t ui32Base); extern void I2CRxFIFOConfigSet(uint32_t ui32Base, uint32_t ui32Config); extern void I2CRxFIFOFlush(uint32_t ui32Base); extern uint32_t I2CFIFOStatus(uint32_t ui32Base); extern void I2CFIFODataPut(uint32_t ui32Base, uint8_t ui8Data); extern uint32_t I2CFIFODataPutNonBlocking(uint32_t ui32Base, uint8_t ui8Data); extern uint32_t I2CFIFODataGet(uint32_t ui32Base); extern uint32_t I2CFIFODataGetNonBlocking(uint32_t ui32Base, uint8_t *pui8Data); extern void I2CMasterBurstLengthSet(uint32_t ui32Base, uint8_t ui8Length); extern uint32_t I2CMasterBurstCountGet(uint32_t ui32Base); extern void I2CMasterGlitchFilterConfigSet(uint32_t ui32Base, uint32_t ui32Config); extern void I2CSlaveFIFOEnable(uint32_t ui32Base, uint32_t ui32Config); extern void I2CSlaveFIFODisable(uint32_t ui32Base); extern bool I2CMasterBusBusy(uint32_t ui32Base); extern bool I2CMasterBusy(uint32_t ui32Base); extern void I2CMasterControl(uint32_t ui32Base, uint32_t ui32Cmd); extern uint32_t I2CMasterDataGet(uint32_t ui32Base); extern void I2CMasterDataPut(uint32_t ui32Base, uint8_t ui8Data); extern void I2CMasterDisable(uint32_t ui32Base); extern void I2CMasterEnable(uint32_t ui32Base); extern uint32_t I2CMasterErr(uint32_t ui32Base); extern void I2CMasterInitExpClk(uint32_t ui32Base, uint32_t ui32SCLFreq); extern void I2CMasterIntClear(uint32_t ui32Base); extern void I2CMasterIntDisable(uint32_t ui32Base); extern void I2CMasterIntEnable(uint32_t ui32Base); extern bool I2CMasterIntStatus(uint32_t ui32Base, bool bMasked); extern void I2CMasterIntEnableEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern void I2CMasterIntDisableEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern uint32_t I2CMasterIntStatusEx(uint32_t ui32Base, bool bMasked); extern void I2CMasterIntClearEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern void I2CMasterTimeoutSet(uint32_t ui32Base, uint32_t ui32Value); extern void I2CSlaveACKOverride(uint32_t ui32Base, bool bEnable); extern void I2CSlaveACKValueSet(uint32_t ui32Base, bool bACK); extern uint32_t I2CMasterLineStateGet(uint32_t ui32Base); extern void I2CMasterSlaveAddrSet(uint32_t ui32Base, uint8_t ui8SlaveAddr, bool bReceive); extern uint32_t I2CSlaveDataGet(uint32_t ui32Base); extern void I2CSlaveDataPut(uint32_t ui32Base, uint8_t ui8Data); extern void I2CSlaveDisable(uint32_t ui32Base); extern void I2CSlaveEnable(uint32_t ui32Base); extern void I2CSlaveInit(uint32_t ui32Base, uint8_t ui8SlaveAddr); extern void I2CSlaveAddressSet(uint32_t ui32Base, uint8_t ui8AddrNum, uint8_t ui8SlaveAddr); extern void I2CSlaveIntClear(uint32_t ui32Base); extern void I2CSlaveIntDisable(uint32_t ui32Base); extern void I2CSlaveIntEnable(uint32_t ui32Base); extern void I2CSlaveIntClearEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern void I2CSlaveIntDisableEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern void I2CSlaveIntEnableEx(uint32_t ui32Base, uint32_t ui32IntFlags); extern bool I2CSlaveIntStatus(uint32_t ui32Base, bool bMasked); extern uint32_t I2CSlaveIntStatusEx(uint32_t ui32Base, bool bMasked); extern uint32_t I2CSlaveStatus(uint32_t ui32Base); //***************************************************************************** // // Mark the end of the C bindings section for C++ compilers. // //***************************************************************************** #ifdef __cplusplus } #endif #endif // __DRIVERLIB_I2C_H__