git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3317 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 203 insertions, 0 deletions

diff --git a/os/hal/platforms/STM32/sdc_lld.h b/os/hal/platforms/STM32/sdc_lld.h
new file mode 100644
index 000000000..eea76dadd
--- /dev/null
+++ b/os/hal/platforms/STM32/sdc_lld.h
@@ -0,0 +1,203 @@
+/*

+    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    STM32/sdc_lld.h

+ * @brief   STM32 SDC subsystem low level driver header.

+ *

+ * @addtogroup SDC

+ * @{

+ */

+

+#ifndef _SDC_LLD_H_

+#define _SDC_LLD_H_

+

+#if HAL_USE_SDC || defined(__DOXYGEN__)

+

+/*===========================================================================*/

+/* Driver constants.                                                         */

+/*===========================================================================*/

+

+

+/*===========================================================================*/

+/* Driver pre-compile time settings.                                         */

+/*===========================================================================*/

+

+/**

+ * @brief   SDIO data timeout in SDIO clock cycles.

+ */

+#if !defined(STM32_SDC_DATATIMEOUT) || defined(__DOXYGEN__)

+#define STM32_SDC_DATATIMEOUT               0x000FFFFF

+#endif

+

+/**

+ * @brief   SDIO DMA priority (0..3|lowest..highest).

+ */

+#if !defined(STM32_SDC_SDIO_DMA_PRIORITY) || defined(__DOXYGEN__)

+#define STM32_SDC_SDIO_DMA_PRIORITY         3

+#endif

+

+/**

+ * @brief   SDIO interrupt priority level setting.

+ */

+#if !defined(STM32_SDC_SDIO_IRQ_PRIORITY) || defined(__DOXYGEN__)

+#define STM32_SDC_SDIO_IRQ_PRIORITY         9

+#endif

+

+/**

+ * @brief   SDIO support for unaligned transfers.

+ */

+#if !defined(STM32_SDC_UNALIGNED_SUPPORT) || defined(__DOXYGEN__)

+#define STM32_SDC_UNALIGNED_SUPPORT         TRUE

+#endif

+

+/*===========================================================================*/

+/* Derived constants and error checks.                                       */

+/*===========================================================================*/

+

+#if !STM32_HAS_SDIO

+#error "SDIO not present in the selected device"

+#endif

+

+#if !defined(STM32_DMA_REQUIRED)

+#define STM32_DMA_REQUIRED

+#endif

+

+/*

+ * SDIO clock divider.

+ */

+#if STM32_HCLK > 48000000

+#define STM32_SDIO_DIV_HS                   0x01

+#define STM32_SDIO_DIV_LS                   0xB2

+#else

+#define STM32_SDIO_DIV_HS                   0x00

+#define STM32_SDIO_DIV_LS                   0x76

+#endif

+

+/*===========================================================================*/

+/* Driver data structures and types.                                         */

+/*===========================================================================*/

+

+/**

+ * @brief   Type of SDIO bus mode.

+ */

+typedef enum {

+  SDC_MODE_1BIT = 0,

+  SDC_MODE_4BIT,

+  SDC_MODE_8BIT

+} sdcbusmode_t;

+

+/**

+ * @brief   Type of card flags.

+ */

+typedef uint32_t sdcmode_t;

+

+/**

+ * @brief   Type of a structure representing an SDC driver.

+ */

+typedef struct SDCDriver SDCDriver;

+

+/**

+ * @brief   Driver configuration structure.

+ * @note    It could be empty on some architectures.

+ */

+typedef struct {

+  uint32_t dummy;

+} SDCConfig;

+

+/**

+ * @brief   Structure representing an SDC driver.

+ */

+struct SDCDriver {

+  /**

+   * @brief Driver state.

+   */

+  sdcstate_t                state;

+  /**

+   * @brief Current configuration data.

+   */

+  const SDCConfig           *config;

+  /**

+   * @brief Various flags regarding the mounted card.

+   */

+  sdcmode_t                 cardmode;

+  /**

+   * @brief Card CID.

+   */

+  uint32_t                  cid[4];

+  /**

+   * @brief Card CSD.

+   */

+  uint32_t                  csd[4];

+  /**

+   * @brief Card RCA.

+   */

+  uint32_t                  rca;

+  /* End of the mandatory fields.*/

+  /**

+   * @brief Thread waiting for I/O completion IRQ.

+   */

+  Thread                    *thread;

+};

+

+/*===========================================================================*/

+/* Driver macros.                                                            */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* External declarations.                                                    */

+/*===========================================================================*/

+

+#if !defined(__DOXYGEN__)

+extern SDCDriver SDCD1;

+#endif

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void sdc_lld_init(void);

+  void sdc_lld_start(SDCDriver *sdcp);

+  void sdc_lld_stop(SDCDriver *sdcp);

+  void sdc_lld_start_clk(SDCDriver *sdcp);

+  void sdc_lld_set_data_clk(SDCDriver *sdcp);

+  void sdc_lld_stop_clk(SDCDriver *sdcp);

+  void sdc_lld_set_bus_mode(SDCDriver *sdcp, sdcbusmode_t mode);

+  void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg);

+  bool_t sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,

+                                uint32_t *resp);

+  bool_t sdc_lld_send_cmd_short_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,

+                                    uint32_t *resp);

+  bool_t sdc_lld_send_cmd_long_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,

+                                   uint32_t *resp);

+  bool_t sdc_lld_read(SDCDriver *sdcp, uint32_t startblk,

+                      uint8_t *buf, uint32_t n);

+  bool_t sdc_lld_write(SDCDriver *sdcp, uint32_t startblk,

+                       const uint8_t *buf, uint32_t n);

+  bool_t sdc_lld_is_card_inserted(SDCDriver *sdcp);

+  bool_t sdc_lld_is_write_protected(SDCDriver *sdcp);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* HAL_USE_SDC */

+

+#endif /* _SDC_LLD_H_ */

+

+/** @} */