i2c_arch.c File Reference

Handling of I2C hardware for LPC21xx. More...

#include "mcu_periph/i2c.h"
#include "std.h"
#include <BOARD_CONFIG>
#include "armVIC.h"

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Functions
static bool	i2c_lpc21_idle (struct i2c_periph *p)
static bool	i2c_lpc21_submit (struct i2c_periph *p, struct i2c_transaction *t)
static void	i2c_lpc21_setbitrate (struct i2c_periph *p, int bitrate)
static void	I2cSendStart (struct i2c_periph *p)
static void	I2cSendAck (void *reg)
static void	I2cEndOfTransaction (struct i2c_periph *p)
static void	I2cSendStop (struct i2c_periph *p, struct i2c_transaction *t)
static void	I2cFail (struct i2c_periph *p, struct i2c_transaction *t)
static void	I2cSendByte (void *reg, uint8_t b)
static void	I2cReceive (void *reg, bool ack)
static void	I2cClearStart (void *reg)
static void	I2cClearIT (void *reg)
static void	I2cAutomaton (int32_t state, struct i2c_periph *p)
void	i2c_event (void)
	i2c_event() function More...

Detailed Description

Handling of I2C hardware for LPC21xx.

Definition in file i2c_arch.c.

Function Documentation

static bool i2c_lpc21_idle ( struct i2c_periph *  p )

static

Definition at line 356 of file i2c_arch.c.

References I2CIdle, and i2c_periph::status.

static void i2c_lpc21_setbitrate ( struct i2c_periph *  p, int  bitrate  )

static

Definition at line 398 of file i2c_arch.c.

References i2c_periph::reg_addr.

static bool i2c_lpc21_submit ( struct i2c_periph *  p, struct i2c_transaction *  t  )

static

Definition at line 361 of file i2c_arch.c.

References disableIRQ(), enableIRQ(), i2c_periph::errors, I2C_TRANSACTION_QUEUE_LEN, I2CIdle, I2cSendStart(), I2CTransFailed, I2CTransPending, idx, i2c_errors::queue_full_cnt, i2c_transaction::status, i2c_periph::status, i2c_periph::trans, i2c_periph::trans_extract_idx, and i2c_periph::trans_insert_idx.

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static void I2cAutomaton ( int32_t  state, struct i2c_periph *  p  )

inlinestatic

Definition at line 110 of file i2c_arch.c.

References i2c_transaction::buf, I2C_MR_DATA_ACK, I2C_MR_DATA_NACK, I2C_MR_SLA_ACK, I2C_MR_SLA_NACK, I2C_MT_DATA_ACK, I2C_MT_SLA_ACK, I2C_MT_SLA_NACK, I2C_RESTART, I2C_START, I2cClearStart(), I2cFail(), I2cReceive(), I2cSendByte(), I2cSendStart(), I2cSendStop(), I2CTransRx, I2CTransTx, I2CTransTxRx, i2c_transaction::len_r, i2c_transaction::len_w, i2c_transaction::slave_addr, and i2c_transaction::type.

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static void I2cClearIT ( void *  reg )

inlinestatic

Definition at line 105 of file i2c_arch.c.

References SIC.

static void I2cClearStart ( void *  reg )

inlinestatic

Definition at line 100 of file i2c_arch.c.

References STAC.

Referenced by I2cAutomaton().

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static void I2cEndOfTransaction ( struct i2c_periph *  p )

inlinestatic

Definition at line 57 of file i2c_arch.c.

References I2C_TRANSACTION_QUEUE_LEN, I2CIdle, and I2cSendStart().

Referenced by I2cFail(), and I2cSendStop().

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static void I2cFail ( struct i2c_periph *  p, struct i2c_transaction *  t  )

inlinestatic

Definition at line 80 of file i2c_arch.c.

References I2cEndOfTransaction(), I2CTransFailed, and STO.

Referenced by I2cAutomaton().

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static void I2cReceive ( void *  reg, bool  ack  )

inlinestatic

Definition at line 94 of file i2c_arch.c.

References AA, and AAC.

Referenced by I2cAutomaton().

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static void I2cSendAck ( void *  reg )

inlinestatic

Definition at line 52 of file i2c_arch.c.

References AA.

static void I2cSendByte ( void *  reg, uint8_t  b  )

inlinestatic

Definition at line 89 of file i2c_arch.c.

Referenced by I2cAutomaton().

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static void I2cSendStart ( struct i2c_periph *  p )

inlinestatic

Definition at line 46 of file i2c_arch.c.

References I2CStartRequested, and STA.

Referenced by i2c_lpc21_submit(), I2cAutomaton(), and I2cEndOfTransaction().

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static void I2cSendStop ( struct i2c_periph *  p, struct i2c_transaction *  t  )

inlinestatic

Definition at line 72 of file i2c_arch.c.

References I2cEndOfTransaction(), I2CTransSuccess, and STO.

Referenced by I2cAutomaton().

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