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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/platforms/STM32/sdc_lld.h | |
| 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/platforms/STM32/sdc_lld.h')
| -rw-r--r-- | os/hal/platforms/STM32/sdc_lld.h | 152 |
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_ */
+
+/** @} */
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