1 files changed, 152 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..012fdb1c7
--- /dev/null
+++ b/os/hal/platforms/STM32/sdc_lld.h
@@ -0,0 +1,152 @@
+/*
+    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 DMA priority (0..3|lowest..highest).
+ */
+#if !defined(STM32_SDC_SDIO_DMA_PRIORITY) || defined(__DOXYGEN__)
+#define STM32_SDC_SDIO_DMA_PRIORITY         2
+#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 DMA error hook.
+ * @note    The default action for DMA errors is a system halt because DMA
+ *          error can only happen because programming errors.
+ */
+#if !defined(STM32_SDC_DMA_ERROR_HOOK) || defined(__DOXYGEN__)
+#define STM32_SDC_DMA_ERROR_HOOK(sdcp)      chSysHalt()
+#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 a structure representing an SDC driver.
+ */
+typedef struct SDCDriver SDCDriver;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+
+} SDCConfig;
+
+/**
+ * @brief   Structure representing an SDC driver.
+ */
+struct SDCDriver {
+  /**
+   * @brief Driver state.
+   */
+  sdcstate_t                state;
+  /**
+   * @brief Current configuration data.
+   */
+  const SDCConfig           *config;
+  /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* 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_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_long(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
+                               uint32_t *resp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SDC */
+
+#endif /* _SDC_LLD_H_ */
+
+/** @} */