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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-04-26 16:59:14 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-04-26 16:59:14 +0000 |
| commit | 2f4dba80ea1d68a1165ca04a6b4d1ccd5853c27d (patch) | |
| tree | a5dc55b8987c6d04da30c6db887f5274c00aff11 /os/hal/src/sdc.c | |
| parent | bfe251b2e41d9639292d12492a03118df2f1ceb4 (diff) | |
| download | ChibiOS-2f4dba80ea1d68a1165ca04a6b4d1ccd5853c27d.tar.gz ChibiOS-2f4dba80ea1d68a1165ca04a6b4d1ccd5853c27d.tar.bz2 ChibiOS-2f4dba80ea1d68a1165ca04a6b4d1ccd5853c27d.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2903 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/src/sdc.c')
| -rw-r--r-- | os/hal/src/sdc.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/os/hal/src/sdc.c b/os/hal/src/sdc.c new file mode 100644 index 000000000..33f2b3612 --- /dev/null +++ b/os/hal/src/sdc.c @@ -0,0 +1,207 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 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/>.
+*/
+
+/**
+ * @file sdc.c
+ * @brief SDC Driver code.
+ *
+ * @addtogroup SDC
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_SDC || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief SDC Driver initialization.
+ * @note This function is implicitly invoked by @p halInit(), there is
+ * no need to explicitly initialize the driver.
+ *
+ * @init
+ */
+void sdcInit(void) {
+
+ sdc_lld_init();
+}
+
+/**
+ * @brief Initializes the standard part of a @p SDCDriver structure.
+ *
+ * @param[out] sdcp pointer to the @p SDCDriver object
+ *
+ * @init
+ */
+void sdcObjectInit(SDCDriver *sdcp) {
+
+ sdcp->state = SDC_STOP;
+ sdcp->config = NULL;
+}
+
+/**
+ * @brief Configures and activates the SDC peripheral.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in] config pointer to the @p SDCConfig object
+ *
+ * @api
+ */
+void sdcStart(SDCDriver *sdcp, const SDCConfig *config) {
+
+ chDbgCheck((sdcp != NULL) && (config != NULL), "sdcStart");
+
+ chSysLock();
+ chDbgAssert((sdcp->state == SDC_STOP) || (sdcp->state == SDC_READY),
+ "sdcStart(), #1", "invalid state");
+ sdcp->config = config;
+ sdc_lld_start(sdcp);
+ sdcp->state = SDC_READY;
+ chSysUnlock();
+}
+
+/**
+ * @brief Deactivates the SDC peripheral.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ *
+ * @api
+ */
+void sdcStop(SDCDriver *sdcp) {
+
+ chDbgCheck(sdcp != NULL, "sdcStop");
+
+ chSysLock();
+ chDbgAssert((sdcp->state == SDC_STOP) || (sdcp->state == SDC_READY),
+ "sdcStop(), #1", "invalid state");
+ sdc_lld_stop(sdcp);
+ sdcp->state = SDC_STOP;
+ chSysUnlock();
+}
+
+/**
+ * @brief Performs the initialization procedure on the inserted card.
+ * @details This function should be invoked when a card is inserted and
+ * brings the driver in the @p SDC_ACTIVE state where it is possible
+ * to perform read and write operations.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ * @return The operation status.
+ * @retval FALSE operation succeeded, the driver is now
+ * in the @p SDC_ACTIVE state.
+ * @retval TRUE operation failed.
+ *
+ * @api
+ */
+bool_t sdcConnect(SDCDriver *sdcp) {
+
+ chDbgCheck(sdcp != NULL, "sdcConnect");
+
+ chSysLock();
+ chDbgAssert(sdcp->state == SDC_READY, "mmcConnect(), #1", "invalid state");
+ sdcp->state = SDC_INITNG;
+ chSysUnlock();
+
+ sdcp->state = SDC_ACTIVE;
+ return FALSE;
+}
+
+/**
+ * @brief Brings the driver in a state safe for card removal.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ * @return The operation status.
+ * @retval FALSE the operation succeeded and the driver is now
+ * in the @p SDC_READY state.
+ * @retval TRUE the operation failed.
+ *
+ * @api
+ */
+bool_t sdcDisconnect(SDCDriver *sdcp) {
+
+ chDbgCheck(sdcp != NULL, "sdcConnect");
+
+ chSysLock();
+ chDbgAssert(sdcp->state == SDC_ACTIVE,
+ "sdcDisconnect(), #1", "invalid state");
+ sdcp->state = SDC_READY;
+ chSysUnlock();
+ return FALSE;
+}
+
+/**
+ * @brief Reads one or more blocks.
+ * @pre The driver must be in the @p SDC_ACTIVE state after a successful
+ * sdcConnect() invocation.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in] startblk first block to read
+ * @param[out] buffer pointer to the read buffer
+ * @return The operation status.
+ * @retval FALSE operation succeeded, the requested blocks have been
+ * read.
+ * @retval TRUE operation failed, the state of the buffer is uncertain.
+ *
+ * @api
+ */
+bool_t sdcRead(SDCDriver *sdcp, uint32_t startblk,
+ uint8_t *buffer, uint32_t n) {
+
+}
+
+/**
+ * @brief Writes one or more blocks.
+ * @pre The driver must be in the @p SDC_ACTIVE state after a successful
+ * sdcConnect() invocation.
+ *
+ * @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in] startblk first block to write
+ * @param[out] buffer pointer to the write buffer
+ * @return The operation status.
+ * @retval FALSE operation succeeded, the requested blocks have been
+ * written.
+ * @retval TRUE operation failed.
+ *
+ * @api
+ */
+bool_t sdcWrite(SDCDriver *sdcp, uint32_t startblk,
+ const uint8_t *buffer, uint32_t n) {
+
+}
+
+#endif /* HAL_USE_SDC */
+
+/** @} */
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