Fall back SW I2C driver template.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10054 35acf78f-673a-0410-8e92-d51de3d6d3f4
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gdisirio
parent
ce7f9addf2
commit
2689848803
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/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file common/I2C/hal_i2c_lld.c
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* @brief SW I2C subsystem low level driver source.
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*
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* @addtogroup I2C
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* @{
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*/
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#include "hal.h"
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#if HAL_USE_I2C || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/** @brief I2C1 driver identifier.*/
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#if SW_I2C_USE_I2C1 || defined(__DOXYGEN__)
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I2CDriver I2CD1;
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#endif
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/** @brief I2C2 driver identifier.*/
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#if SW_I2C_USE_I2C2 || defined(__DOXYGEN__)
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I2CDriver I2CD2;
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#endif
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/** @brief I2C3 driver identifier.*/
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#if SW_I2C_USE_I2C3 || defined(__DOXYGEN__)
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I2CDriver I2CD3;
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#endif
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/** @brief I2C4 driver identifier.*/
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#if SW_I2C_USE_I2C4 || defined(__DOXYGEN__)
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I2CDriver I2CD4;
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#endif
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level I2C driver initialization.
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*
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* @notapi
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*/
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void i2c_lld_init(void) {
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#if SW_I2C_USE_I2C1
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i2cObjectInit(&I2CD1);
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#endif /* SW_I2C_USE_I2C1 */
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}
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/**
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* @brief Configures and activates the I2C peripheral.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_start(I2CDriver *i2cp) {
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/* If in stopped state then enables the I2C and DMA clocks.*/
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if (i2cp->state == I2C_STOP) {
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#if SW_I2C_USE_I2C1
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if (&I2CD1 == i2cp) {
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}
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#endif /* SW_I2C_USE_I2C1 */
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}
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}
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/**
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* @brief Deactivates the I2C peripheral.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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void i2c_lld_stop(I2CDriver *i2cp) {
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/* If not in stopped state then disables the I2C clock.*/
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if (i2cp->state != I2C_STOP) {
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/* I2C disable.*/
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//i2c_lld_abort_operation(i2cp);
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#if SW_I2C_USE_I2C1
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if (&I2CD1 == i2cp) {
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}
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#endif
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}
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}
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/**
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* @brief Receives data via the I2C bus as master.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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* @param[in] addr slave device address
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* @param[out] rxbuf pointer to the receive buffer
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* @param[in] rxbytes number of bytes to be received
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* @param[in] timeout the number of ticks before the operation timeouts,
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* the following special values are allowed:
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* - @a TIME_INFINITE no timeout.
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* .
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* @return The operation status.
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* @retval MSG_OK if the function succeeded.
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* @retval MSG_RESET if one or more I2C errors occurred, the errors can
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* be retrieved using @p i2cGetErrors().
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* @retval MSG_TIMEOUT if a timeout occurred before operation end. <b>After a
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* timeout the driver must be stopped and restarted
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* because the bus is in an uncertain state</b>.
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*
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* @notapi
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*/
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msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr,
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uint8_t *rxbuf, size_t rxbytes,
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systime_t timeout) {
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msg_t msg = MSG_OK;
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(void)i2cp;
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(void)addr;
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(void)rxbuf;
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(void)rxbytes;
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(void)timeout;
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return msg;
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}
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/**
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* @brief Transmits data via the I2C bus as master.
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* @details Number of receiving bytes must be 0 or more than 1 on STM32F1x.
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* This is hardware restriction.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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* @param[in] addr slave device address
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* @param[in] txbuf pointer to the transmit buffer
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* @param[in] txbytes number of bytes to be transmitted
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* @param[out] rxbuf pointer to the receive buffer
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* @param[in] rxbytes number of bytes to be received
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* @param[in] timeout the number of ticks before the operation timeouts,
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* the following special values are allowed:
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* - @a TIME_INFINITE no timeout.
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* .
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* @return The operation status.
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* @retval MSG_OK if the function succeeded.
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* @retval MSG_RESET if one or more I2C errors occurred, the errors can
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* be retrieved using @p i2cGetErrors().
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* @retval MSG_TIMEOUT if a timeout occurred before operation end. <b>After a
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* timeout the driver must be stopped and restarted
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* because the bus is in an uncertain state</b>.
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*
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* @notapi
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*/
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msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr,
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const uint8_t *txbuf, size_t txbytes,
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uint8_t *rxbuf, size_t rxbytes,
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systime_t timeout) {
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msg_t msg = MSG_OK;
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(void)i2cp;
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(void)addr;
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(void)txbuf;
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(void)txbytes;
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(void)rxbuf;
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(void)rxbytes;
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(void)timeout;
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return msg;
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}
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#endif /* HAL_USE_I2C */
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/** @} */
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@ -0,0 +1,194 @@
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/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file common/I2C/hal_i2c_lld.h
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* @brief SW I2C subsystem low level driver header.
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*
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* @addtogroup I2C
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* @{
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*/
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#ifndef HAL_I2C_LLD_H
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#define HAL_I2C_LLD_H
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#if HAL_USE_I2C || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @name Configuration options
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* @{
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*/
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/**
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* @brief I2C1 driver enable switch.
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* @details If set to @p TRUE the support for I2C1 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(SW_I2C_USE_I2C1) || defined(__DOXYGEN__)
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#define SW_I2C_USE_I2C1 FALSE
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#endif
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/**
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* @brief I2C2 driver enable switch.
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* @details If set to @p TRUE the support for I2C2 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(SW_I2C_USE_I2C2) || defined(__DOXYGEN__)
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#define SW_I2C_USE_I2C2 FALSE
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#endif
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/**
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* @brief I2C3 driver enable switch.
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* @details If set to @p TRUE the support for I2C3 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(SW_I2C_USE_I2C3) || defined(__DOXYGEN__)
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#define SW_I2C_USE_I2C3 FALSE
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#endif
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/**
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* @brief I2C4 driver enable switch.
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* @details If set to @p TRUE the support for I2C4 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(SW_I2C_USE_I2C4) || defined(__DOXYGEN__)
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#define SW_I2C_USE_I2C4 FALSE
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#endif
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/** @} */
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Type representing an I2C address.
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*/
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typedef uint16_t i2caddr_t;
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/**
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* @brief Type of I2C driver condition flags.
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*/
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typedef uint8_t i2cflags_t;
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/**
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* @brief Type of I2C driver configuration structure.
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*/
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typedef struct {
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} I2CConfig;
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/**
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* @brief Type of a structure representing an I2C driver.
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*/
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typedef struct I2CDriver I2CDriver;
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/**
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* @brief Structure representing an I2C driver.
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*/
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struct I2CDriver {
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/**
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* @brief Driver state.
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*/
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i2cstate_t state;
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/**
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* @brief Current configuration data.
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*/
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const I2CConfig *config;
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/**
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* @brief Error flags.
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*/
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i2cflags_t errors;
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#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
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mutex_t mutex;
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#endif /* I2C_USE_MUTUAL_EXCLUSION */
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#if defined(I2C_DRIVER_EXT_FIELDS)
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I2C_DRIVER_EXT_FIELDS
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#endif
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/* End of the mandatory fields.*/
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/**
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* @brief I2C clock line.
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*/
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ioline_t clk;
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/**
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* @brief I2C data line.
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*/
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ioline_t data;
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};
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @brief Get errors from I2C driver.
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*
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* @param[in] i2cp pointer to the @p I2CDriver object
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*
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* @notapi
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*/
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#define i2c_lld_get_errors(i2cp) ((i2cp)->errors)
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#if !defined(__DOXYGEN__)
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#if SW_I2C_USE_I2C1
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extern I2CDriver I2CD1;
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#endif
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#if SW_I2C_USE_I2C2
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extern I2CDriver I2CD2;
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#endif
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#if SW_I2C_USE_I2C3
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extern I2CDriver I2CD3;
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#endif
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#if SW_I2C_USE_I2C4
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extern I2CDriver I2CD4;
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#endif
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#endif /* !defined(__DOXYGEN__) */
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#ifdef __cplusplus
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extern "C" {
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#endif
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void i2c_lld_init(void);
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void i2c_lld_start(I2CDriver *i2cp);
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void i2c_lld_stop(I2CDriver *i2cp);
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msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr,
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const uint8_t *txbuf, size_t txbytes,
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uint8_t *rxbuf, size_t rxbytes,
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systime_t timeout);
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msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr,
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uint8_t *rxbuf, size_t rxbytes,
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systime_t timeout);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_I2C */
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#endif /* HAL_I2C_LLD_H */
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/** @} */
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@ -1,9 +1,21 @@
|
||||||
ifeq ($(USE_SMART_BUILD),yes)
|
ifeq ($(USE_HAL_I2C_FALLBACK),yes)
|
||||||
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
# Fallback SW driver.
|
||||||
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1/hal_i2c_lld.c
|
ifeq ($(USE_SMART_BUILD),yes)
|
||||||
endif
|
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
else
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
PLATFORMINC += $(CHIBIOS)/os/hal/lib/fallback/I2C
|
||||||
else
|
else
|
||||||
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1/hal_i2c_lld.c
|
# Default HW driver.
|
||||||
|
ifeq ($(USE_SMART_BUILD),yes)
|
||||||
|
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
else
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1
|
||||||
endif
|
endif
|
||||||
|
|
||||||
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv1
|
|
||||||
|
|
|
||||||
|
|
@ -1,9 +1,21 @@
|
||||||
ifeq ($(USE_SMART_BUILD),yes)
|
ifeq ($(USE_HAL_I2C_FALLBACK),yes)
|
||||||
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
# Fallback SW driver.
|
||||||
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/hal_i2c_lld.c
|
ifeq ($(USE_SMART_BUILD),yes)
|
||||||
endif
|
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
else
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
PLATFORMINC += $(CHIBIOS)/os/hal/lib/fallback/I2C
|
||||||
else
|
else
|
||||||
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/hal_i2c_lld.c
|
# Default HW driver.
|
||||||
|
ifeq ($(USE_SMART_BUILD),yes)
|
||||||
|
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
else
|
||||||
|
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2/hal_i2c_lld.c
|
||||||
|
endif
|
||||||
|
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2
|
||||||
endif
|
endif
|
||||||
|
|
||||||
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv2
|
|
||||||
|
|
|
||||||
|
|
@ -52,9 +52,11 @@
|
||||||
| | +--dox/ - HAL documentation resources.
|
| | +--dox/ - HAL documentation resources.
|
||||||
| | +--include/ - HAL high level headers.
|
| | +--include/ - HAL high level headers.
|
||||||
| | +--lib/ - HAL libraries.
|
| | +--lib/ - HAL libraries.
|
||||||
|
| | | +--fallback/ - HAL fall back software drivers.
|
||||||
| | | +--peripherals/- HAL peripherals interfaces.
|
| | | +--peripherals/- HAL peripherals interfaces.
|
||||||
| | | +--streams/ - HAL streams.
|
| | | +--streams/ - HAL streams.
|
||||||
| | +--osal/ - HAL OSAL implementations.
|
| | +--osal/ - HAL OSAL implementations.
|
||||||
|
| | | +--lib/ - HAL OSAL common modules.
|
||||||
| | +--src/ - HAL high level source.
|
| | +--src/ - HAL high level source.
|
||||||
| | +--ports/ - HAL ports.
|
| | +--ports/ - HAL ports.
|
||||||
| | +--templates/ - HAL driver template files.
|
| | +--templates/ - HAL driver template files.
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue