git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6108 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 0 insertions, 303 deletions

diff --git a/os/hal/src/i2c.c b/os/hal/src/i2c.c
deleted file mode 100644
index 8604488e5..000000000
--- a/os/hal/src/i2c.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*

-    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

-                 2011,2012,2013 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/>.

-*/

-/*

-   Concepts and parts of this file have been contributed by Uladzimir Pylinsky

-   aka barthess.

- */

-

-/**

- * @file    i2c.c

- * @brief   I2C Driver code.

- *

- * @addtogroup I2C

- * @{

- */

-#include "ch.h"

-#include "hal.h"

-

-#if HAL_USE_I2C || defined(__DOXYGEN__)

-

-/*===========================================================================*/

-/* Driver local definitions.                                                 */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver exported variables.                                                */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver local variables and types.                                         */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver local functions.                                                   */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver exported functions.                                                */

-/*===========================================================================*/

-

-/**

- * @brief   I2C Driver initialization.

- * @note    This function is implicitly invoked by @p halInit(), there is

- *          no need to explicitly initialize the driver.

- *

- * @init

- */

-void i2cInit(void) {

-  i2c_lld_init();

-}

-

-/**

- * @brief   Initializes the standard part of a @p I2CDriver structure.

- *

- * @param[out] i2cp     pointer to the @p I2CDriver object

- *

- * @init

- */

-void i2cObjectInit(I2CDriver *i2cp) {

-

-  i2cp->state  = I2C_STOP;

-  i2cp->config = NULL;

-

-#if I2C_USE_MUTUAL_EXCLUSION

-#if CH_CFG_USE_MUTEXES

-  chMtxInit(&i2cp->mutex);

-#else

-  chSemInit(&i2cp->semaphore, 1);

-#endif /* CH_CFG_USE_MUTEXES */

-#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

- *

- * @api

- */

-void i2cStart(I2CDriver *i2cp, const I2CConfig *config) {

-

-  chDbgCheck((i2cp != NULL) && (config != NULL), "i2cStart");

-  chDbgAssert((i2cp->state == I2C_STOP) || (i2cp->state == I2C_READY) ||

-              (i2cp->state == I2C_LOCKED),

-              "i2cStart(), #1",

-              "invalid state");

-

-  chSysLock();

-  i2cp->config = config;

-  i2c_lld_start(i2cp);

-  i2cp->state = I2C_READY;

-  chSysUnlock();

-}

-

-/**

- * @brief   Deactivates the I2C peripheral.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- *

- * @api

- */

-void i2cStop(I2CDriver *i2cp) {

-

-  chDbgCheck(i2cp != NULL, "i2cStop");

-  chDbgAssert((i2cp->state == I2C_STOP) || (i2cp->state == I2C_READY) ||

-              (i2cp->state == I2C_LOCKED),

-              "i2cStop(), #1",

-              "invalid state");

-

-  chSysLock();

-  i2c_lld_stop(i2cp);

-  i2cp->state = I2C_STOP;

-  chSysUnlock();

-}

-

-/**

- * @brief   Returns the errors mask associated to the previous operation.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- * @return              The errors mask.

- *

- * @api

- */

-i2cflags_t i2cGetErrors(I2CDriver *i2cp) {

-

-  chDbgCheck(i2cp != NULL, "i2cGetErrors");

-

-  return i2c_lld_get_errors(i2cp);

-}

-

-/**

- * @brief   Sends data via the I2C bus.

- * @details Function designed to realize "read-through-write" transfer

- *          paradigm. If you want transmit data without any further read,

- *          than set @b rxbytes field to 0.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- * @param[in] addr      slave device address (7 bits) without R/W bit

- * @param[in] txbuf     pointer to transmit buffer

- * @param[in] txbytes   number of bytes to be transmitted

- * @param[out] rxbuf    pointer to receive buffer

- * @param[in] rxbytes   number of bytes to be received, set it to 0 if

- *                      you want transmit only

- * @param[in] timeout   the number of ticks before the operation timeouts,

- *                      the following special values are allowed:

- *                      - @a TIME_INFINITE no timeout.

- *                      .

- *

- * @return              The operation status.

- * @retval RDY_OK       if the function succeeded.

- * @retval RDY_RESET    if one or more I2C errors occurred, the errors can

- *                      be retrieved using @p i2cGetErrors().

- * @retval RDY_TIMEOUT  if a timeout occurred before operation end.

- *

- * @api

- */

-msg_t i2cMasterTransmitTimeout(I2CDriver *i2cp,

-                               i2caddr_t addr,

-                               const uint8_t *txbuf,

-                               size_t txbytes,

-                               uint8_t *rxbuf,

-                               size_t rxbytes,

-                               systime_t timeout) {

-  msg_t rdymsg;

-

-  chDbgCheck((i2cp != NULL) && (addr != 0) &&

-             (txbytes > 0) && (txbuf != NULL) &&

-             ((rxbytes == 0) || ((rxbytes > 0) && (rxbuf != NULL))) &&

-             (timeout != TIME_IMMEDIATE),

-             "i2cMasterTransmitTimeout");

-

-  chDbgAssert(i2cp->state == I2C_READY,

-              "i2cMasterTransmitTimeout(), #1", "not ready");

-

-  chSysLock();

-  i2cp->errors = I2CD_NO_ERROR;

-  i2cp->state = I2C_ACTIVE_TX;

-  rdymsg = i2c_lld_master_transmit_timeout(i2cp, addr, txbuf, txbytes,

-                                           rxbuf, rxbytes, timeout);

-  if (rdymsg == RDY_TIMEOUT)

-    i2cp->state = I2C_LOCKED;

-  else

-    i2cp->state = I2C_READY;

-  chSysUnlock();

-  return rdymsg;

-}

-

-/**

- * @brief   Receives data from the I2C bus.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- * @param[in] addr      slave device address (7 bits) without R/W bit

- * @param[out] rxbuf    pointer to receive buffer

- * @param[in] rxbytes   number of bytes to be received

- * @param[in] timeout   the number of ticks before the operation timeouts,

- *                      the following special values are allowed:

- *                      - @a TIME_INFINITE no timeout.

- *                      .

- *

- * @return              The operation status.

- * @retval RDY_OK       if the function succeeded.

- * @retval RDY_RESET    if one or more I2C errors occurred, the errors can

- *                      be retrieved using @p i2cGetErrors().

- * @retval RDY_TIMEOUT  if a timeout occurred before operation end.

- *

- * @api

- */

-msg_t i2cMasterReceiveTimeout(I2CDriver *i2cp,

-                              i2caddr_t addr,

-                              uint8_t *rxbuf,

-                              size_t rxbytes,

-                              systime_t timeout){

-

-  msg_t rdymsg;

-

-  chDbgCheck((i2cp != NULL) && (addr != 0) &&

-             (rxbytes > 0) && (rxbuf != NULL) &&

-             (timeout != TIME_IMMEDIATE),

-             "i2cMasterReceiveTimeout");

-

-  chDbgAssert(i2cp->state == I2C_READY,

-              "i2cMasterReceive(), #1", "not ready");

-

-  chSysLock();

-  i2cp->errors = I2CD_NO_ERROR;

-  i2cp->state = I2C_ACTIVE_RX;

-  rdymsg = i2c_lld_master_receive_timeout(i2cp, addr, rxbuf, rxbytes, timeout);

-  if (rdymsg == RDY_TIMEOUT)

-    i2cp->state = I2C_LOCKED;

-  else

-    i2cp->state = I2C_READY;

-  chSysUnlock();

-  return rdymsg;

-}

-

-#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)

-/**

- * @brief   Gains exclusive access to the I2C bus.

- * @details This function tries to gain ownership to the SPI bus, if the bus

- *          is already being used then the invoking thread is queued.

- * @pre     In order to use this function the option @p I2C_USE_MUTUAL_EXCLUSION

- *          must be enabled.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- *

- * @api

- */

-void i2cAcquireBus(I2CDriver *i2cp) {

-

-  chDbgCheck(i2cp != NULL, "i2cAcquireBus");

-

-#if CH_CFG_USE_MUTEXES

-  chMtxLock(&i2cp->mutex);

-#elif CH_CFG_USE_SEMAPHORES

-  chSemWait(&i2cp->semaphore);

-#endif

-}

-

-/**

- * @brief   Releases exclusive access to the I2C bus.

- * @pre     In order to use this function the option @p I2C_USE_MUTUAL_EXCLUSION

- *          must be enabled.

- *

- * @param[in] i2cp      pointer to the @p I2CDriver object

- *

- * @api

- */

-void i2cReleaseBus(I2CDriver *i2cp) {

-

-  chDbgCheck(i2cp != NULL, "i2cReleaseBus");

-

-#if CH_CFG_USE_MUTEXES

-  chMtxUnlock();

-#elif CH_CFG_USE_SEMAPHORES

-  chSemSignal(&i2cp->semaphore);

-#endif

-}

-#endif /* I2C_USE_MUTUAL_EXCLUSION */

-

-#endif /* HAL_USE_I2C */

-

-/** @} */