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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-09-08 16:40:12 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-09-08 16:40:12 +0000
commit6225d35fa1d5087755574c10d7ccec48d878dc44 (patch)
treee425d0096af13d7e633bce8641a4dd3306327540 /nuttx/configs/shenzhou/src/up_mmcsd.c
parentb4420923cb149a5a8164bb06794e12b88203d97c (diff)
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Changes to get a clean compile with the Kconfig Shenzhou board. Still some link issues
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5115 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/shenzhou/src/up_mmcsd.c')
-rw-r--r--nuttx/configs/shenzhou/src/up_mmcsd.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/nuttx/configs/shenzhou/src/up_mmcsd.c b/nuttx/configs/shenzhou/src/up_mmcsd.c
new file mode 100644
index 000000000..3de7f2620
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+++ b/nuttx/configs/shenzhou/src/up_mmcsd.c
@@ -0,0 +1,123 @@
+/****************************************************************************
+ * config/shenzhou/src/up_mmcsd.c
+ * arch/arm/src/board/up_mmcsd.c
+ *
+ * Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/spi.h>
+#include <nuttx/mmcsd.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+/* SPI1 connects to the SD CARD (and to the SPI FLASH) */
+
+#define HAVE_MMCSD 1 /* Assume that we have SD support */
+#define STM32_MMCSDSPIPORTNO 1 /* Port is SPI1 */
+#define STM32_MMCSDSLOTNO 0 /* There is only one slot */
+
+#ifndef CONFIG_STM32_SPI1
+# undef HAVE_MMCSD
+#else
+# ifdef CONFIG_SPI_OWNBUS
+# warning "SPI1 is shared with SD and FLASH but CONFIG_SPI_OWNBUS is defined"
+# endif
+#endif
+
+/* Can't support MMC/SD features if mountpoints are disabled */
+
+#ifndef CONFIG_DISABLE_MOUNTPOINT
+# undef NSH_HAVEMMCSD
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_sdinitialize
+ *
+ * Description:
+ * Initialize the SPI-based SD card. Requires CONFIG_DISABLE_MOUNTPOINT=n
+ * and CONFIG_STM32_SPI1=y
+ *
+ ****************************************************************************/
+
+int stm32_sdinitialize(int minor)
+{
+#ifdef HAVE_MMCSD
+ FAR struct spi_dev_s *spi;
+ int ret;
+
+ /* Get the SPI port */
+
+ fvdbg("Initializing SPI port %d\n", STM32_MMCSDSPIPORTNO);
+
+ spi = up_spiinitialize(STM32_MMCSDSPIPORTNO);
+ if (!spi)
+ {
+ fdbg("Failed to initialize SPI port %d\n", STM32_MMCSDSPIPORTNO);
+ return -ENODEV;
+ }
+
+ fvdbg("Successfully initialized SPI port %d\n", STM32_MMCSDSPIPORTNO);
+
+ /* Bind the SPI port to the slot */
+
+ fvdbg("Binding SPI port %d to MMC/SD slot %d\n",
+ STM32_MMCSDSPIPORTNO, STM32_MMCSDSLOTNO);
+
+ ret = mmcsd_spislotinitialize(minor, STM32_MMCSDSLOTNO, spi);
+ if (ret < 0)
+ {
+ fdbg("Failed to bind SPI port %d to MMC/SD slot %d: %d\n",
+ STM32_MMCSDSPIPORTNO, STM32_MMCSDSLOTNO, ret);
+ return ret;
+ }
+
+ fvdbg("Successfuly bound SPI port %d to MMC/SD slot %d\n",
+ STM32_MMCSDSPIPORTNO, STM32_MMCSDSLOTNO);
+#endif
+ return OK;
+}