diff options
Diffstat (limited to 'os/hal/src/i2c_albi.c')
| -rw-r--r-- | os/hal/src/i2c_albi.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/os/hal/src/i2c_albi.c b/os/hal/src/i2c_albi.c deleted file mode 100644 index 64bed78eb..000000000 --- a/os/hal/src/i2c_albi.c +++ /dev/null @@ -1,268 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_I2C || defined(__DOXYGEN__)
-
-/**
- * @brief I2C Driver initialization.
- */
-void i2cInit(void) {
-
- i2c_lld_init();
-}
-
-/**
- * @brief Initializes the standard part of a @p I2CDriver structure.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- */
-void i2cObjectInit(I2CDriver *i2cp) {
- chEvtInit(&i2cp->sevent);
- i2cp->errors = I2CD_NO_ERROR;
- i2cp->state = I2C_STOP;
-// i2cp->i2cd_config = NULL;
-#if I2C_USE_WAIT
- i2cp->thread = NULL;
-#endif /* I2C_USE_WAIT */
-#if I2C_USE_MUTUAL_EXCLUSION
-#if CH_USE_MUTEXES
- chMtxInit(&i2cp->mutex);
-#elif CH_USE_SEMAPHORES
- chSemInit(&i2cp->semaphore, 1);
-#endif
-#endif /* I2C_USE_MUTUAL_EXCLUSION */
-#if defined(I2C_DRIVER_EXT_INIT_HOOK)
- I2C_DRIVER_EXT_INIT_HOOK(i2cp);
-#endif
-}
-
-/**
- * @brief Configures and activates the I2C peripheral.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- * @param[in] config pointer to the @p I2CConfig object
- */
-void i2cStart(I2CDriver *i2cp, const I2CConfig *config) {
-
- chDbgCheck((i2cp != NULL) && (config != NULL), "i2cStart");
-
- chSysLock();
- chDbgAssert((i2cp->state == I2C_STOP)||(i2cp->state == I2C_READY),
- "i2cStart(), #1", "invalid state");
-
- i2cp->nbit_address = config->nBitAddress;
- i2c_lld_start(i2cp);
- i2c_lld_set_clock(i2cp, config->ClockSpeed, config->FastModeDutyCycle);
- i2c_lld_set_opmode(i2cp, config->opMode);
- i2c_lld_set_own_address(i2cp, config->OwnAddress1, config->nBitAddress);
- i2cp->state = I2C_READY;
- chSysUnlock();
-}
-
-/**
- * @brief Deactivates the I2C peripheral.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- */
-void i2cStop(I2CDriver *i2cp) {
-
- chDbgCheck(i2cp != NULL, "i2cStop");
-
- chSysLock();
- chDbgAssert((i2cp->state == I2C_STOP) || (i2cp->state == I2C_READY),
- "i2cStop(), #1", "invalid state");
- i2c_lld_stop(i2cp);
- i2cp->state = I2C_STOP;
- chSysUnlock();
-}
-
-/**
- * @brief Sends data ever the I2C bus.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- * @param[in] slave_addr 7-bit or 10-bit address of the slave
- * @param[in] n number of words to send
- * @param[in] txbuf the pointer to the transmit buffer
- *
- */
-void i2cMasterTransmit(I2CDriver *i2cp, uint16_t slave_addr, size_t n, void *txbuf) {
-
- chDbgCheck((i2cp != NULL) && (n > 0) && (txbuf != NULL),
- "i2cMasterTransmit");
-
-#if I2C_USE_WAIT
- i2c_lld_wait_bus_free(i2cp);
- if(i2c_lld_bus_is_busy(i2cp)) {
-#ifdef PRINTTRACE
- print("I2C Bus busy!\n");
-#endif
- return;
- };
-#endif
-
- chSysLock();
- chDbgAssert(i2cp->state == I2C_READY,
- "i2cMasterTransmit(), #1", "not ready");
-
- i2cp->state = I2C_ACTIVE;
- i2c_lld_master_transmit(i2cp, slave_addr, n, txbuf);
- _i2c_wait_s(i2cp);
-#if !I2C_USE_WAIT
- i2c_lld_wait_bus_free(i2cp);
-#endif
- if (i2cp->state == I2C_COMPLETE)
- i2cp->state = I2C_READY;
- chSysUnlock();
-}
-
-/**
- * @brief Receives data from the I2C bus.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- * @param[in] slave_addr 7-bit or 10-bit address of the slave
- * @param[in] n number of bytes to receive
- * @param[out] rxbuf the pointer to the receive buffer
- *
- */
-void i2cMasterReceive(I2CDriver *i2cp, uint16_t slave_addr, size_t n, void *rxbuf) {
-
- chDbgCheck((i2cp != NULL) && (n > 0) && (rxbuf != NULL),
- "i2cMasterReceive");
-
-#if I2C_USE_WAIT
- i2c_lld_wait_bus_free(i2cp);
- if(i2c_lld_bus_is_busy(i2cp)) {
-#ifdef PRINTTRACE
- print("I2C Bus busy!\n");
-#endif
- return;
- };
-#endif
-
- chSysLock();
- chDbgAssert(i2cp->state == I2C_READY,
- "i2cMasterReceive(), #1", "not ready");
-
- i2cp->state = I2C_ACTIVE;
- i2c_lld_master_receive(i2cp, slave_addr, n, rxbuf);
- _i2c_wait_s(i2cp);
-#if !I2C_USE_WAIT
- i2c_lld_wait_bus_free(i2cp);
-#endif
- if (i2cp->state == I2C_COMPLETE)
- i2cp->state = I2C_READY;
- chSysUnlock();
-}
-
-uint16_t i2cSMBusAlertResponse(I2CDriver *i2cp) {
- uint16_t slv_addr;
-
- i2cMasterReceive(i2cp, 0x0C, 2, &slv_addr);
- return slv_addr;
-}
-
-
-/**
- * @brief Handles communication events/errors.
- * @details Must be called from the I/O interrupt service routine in order to
- * notify I/O conditions as errors, signals change etc.
- *
- * @param[in] i2cp pointer to a @p I2CDriver structure
- * @param[in] mask condition flags to be added to the mask
- *
- * @iclass
- */
-void i2cAddFlagsI(I2CDriver *i2cp, i2cflags_t mask) {
-
- chDbgCheck(i2cp != NULL, "i2cAddFlagsI");
-
- i2cp->errors |= mask;
- chEvtBroadcastI(&i2cp->sevent);
-}
-
-/**
- * @brief Returns and clears the errors mask associated to the driver.
- *
- * @param[in] i2cp pointer to a @p I2CDriver structure
- * @return The condition flags modified since last time this
- * function was invoked.
- *
- * @api
- */
-i2cflags_t i2cGetAndClearFlags(I2CDriver *i2cp) {
- i2cflags_t mask;
-
- chDbgCheck(i2cp != NULL, "i2cGetAndClearFlags");
-
- chSysLock();
- mask = i2cp->errors;
- i2cp->errors = I2CD_NO_ERROR;
- chSysUnlock();
- return mask;
-}
-
-
-
-#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
-/**
- * @brief Gains exclusive access to the I2C bus.
- * @details This function tries to gain ownership to the I2C bus, if the bus
- * is already being used then the invoking thread is queued.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- *
- * @note This function is only available when the @p I2C_USE_MUTUAL_EXCLUSION
- * option is set to @p TRUE.
- */
-void i2cAcquireBus(I2CDriver *i2cp) {
-
- chDbgCheck(i2cp != NULL, "i2cAcquireBus");
-
-#if CH_USE_MUTEXES
- chMtxLock(&i2cp->mutex);
-#elif CH_USE_SEMAPHORES
- chSemWait(&i2cp->semaphore);
-#endif
-}
-
-/**
- * @brief Releases exclusive access to the I2C bus.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- *
- * @note This function is only available when the @p I2C_USE_MUTUAL_EXCLUSION
- * option is set to @p TRUE.
- */
-void i2cReleaseBus(I2CDriver *i2cp) {
-
- chDbgCheck(i2cp != NULL, "i2cReleaseBus");
-
-#if CH_USE_MUTEXES
- (void)i2cp;
- chMtxUnlock();
-#elif CH_USE_SEMAPHORES
- chSemSignal(&i2cp->semaphore);
-#endif
-}
-#endif /* I2C_USE_MUTUAL_EXCLUSION */
-
-#endif /* CH_HAL_USE_I2C */
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