diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-04-18 21:56:32 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-04-18 21:56:32 +0000 |
commit | 151ba9fe153e122b116a4fc8a251b2c04b41334c (patch) | |
tree | 9aade1ccaa6ca77159207aedaac6faf530ccdde7 /nuttx/arch/arm/src/imx/imx_cspi.h | |
parent | 36052c9b70ae9fb8ad6e4f6c91094c26f749cf68 (diff) | |
download | px4-nuttx-151ba9fe153e122b116a4fc8a251b2c04b41334c.tar.gz px4-nuttx-151ba9fe153e122b116a4fc8a251b2c04b41334c.tar.bz2 px4-nuttx-151ba9fe153e122b116a4fc8a251b2c04b41334c.zip |
more i.MX logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1702 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/imx/imx_cspi.h')
-rwxr-xr-x | nuttx/arch/arm/src/imx/imx_cspi.h | 216 |
1 files changed, 128 insertions, 88 deletions
diff --git a/nuttx/arch/arm/src/imx/imx_cspi.h b/nuttx/arch/arm/src/imx/imx_cspi.h index 3feb6d7b0..cd24a127d 100755 --- a/nuttx/arch/arm/src/imx/imx_cspi.h +++ b/nuttx/arch/arm/src/imx/imx_cspi.h @@ -1,88 +1,128 @@ -/************************************************************************************
- * arch/arm/src/imx/imx_cspi.h
- *
- * Copyright (C) 2009 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * 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.
- *
- ************************************************************************************/
-
-#ifndef __ARCH_ARM_IMX_CSPI_H
-#define __ARCH_ARM_IMX_CSPI_H
-
-/************************************************************************************
- * Included Files
- ************************************************************************************/
-
-/************************************************************************************
- * Definitions
- ************************************************************************************/
-
-/* CSPI Register Offsets ************************************************************/
-
-#define CSPI_SPIRXD_OFFSET 0x0000
-#define CSPI_SPITXD_OFFSET 0x0004
-#define CSPI_SPICONT1_OFFSET 0x0008
-#define CSPI_INTCS_OFFSET 0x000c
-#define CSPI_SPITEST_OFFSET 0x0010
-#define CSPI_SPISPCR_OFFSET 0x0014
-#define CSPI_SPIDMA_OFFSET 0x0018
-#define CSPI_SPIRESET_OFFSET 0x001c
-
-/* CSPI Register Addresses **********************************************************/
-
-/* CSPI1 */
-
-#define IMX_CSPI1_SPIRXD (IMX_CSPI1_VBASE + CSPI_SPIRXD_OFFSET)
-#define IMX_CSPI1_SPITXD (IMX_CSPI1_VBASE + CSPI_SPITXD_OFFSET)
-#define IMX_CSPI1_SPICONT1 (IMX_CSPI1_VBASE + CSPI_SPICONT1_OFFSET)
-#define IMX_CSPI1_INTCS (IMX_CSPI1_VBASE + CSPI_INTCS_OFFSET)
-#define IMX_CSPI1_SPITEST (IMX_CSPI1_VBASE + CSPI_SPITEST_OFFSET)
-#define IMX_CSPI1_SPISPCR (IMX_CSPI1_VBASE + CSPI_SPISPCR_OFFSET)
-#define IMX_CSPI1_SPIDMA (IMX_CSPI1_VBASE + CSPI_SPIDMA_OFFSET)
-#define IMX_CSPI1_SPIRESET (IMX_CSPI1_VBASE + CSPI_SPIRESET_OFFSET)
-
-/* CSPI1 */
-
-#define IMX_CSPI2_SPIRXD (IMX_CSPI2_VBASE + CSPI_SPIRXD_OFFSET)
-#define IMX_CSPI2_SPITXD (IMX_CSPI2_VBASE + CSPI_SPITXD_OFFSET)
-#define IMX_CSPI2_SPICONT1 (IMX_CSPI2_VBASE + CSPI_SPICONT1_OFFSET)
-#define IMX_CSPI2_INTCS (IMX_CSPI2_VBASE + CSPI_INTCS_OFFSET)
-#define IMX_CSPI2_SPITEST (IMX_CSPI2_VBASE + CSPI_SPITEST_OFFSET)
-#define IMX_CSPI2_SPISPCR (IMX_CSPI2_VBASE + CSPI_SPISPCR_OFFSET)
-#define IMX_CSPI2_SPIDMA (IMX_CSPI2_VBASE + CSPI_SPIDMA_OFFSET)
-#define IMX_CSPI2_SPIRESET (IMX_CSPI2_VBASE + CSPI_SPIRESET_OFFSET)
-
-/* CSPI Register Bit Definitions ****************************************************/
-
-/************************************************************************************
- * Inline Functions
- ************************************************************************************/
-
-#endif /* __ARCH_ARM_IMX_CSPI_H */
+/************************************************************************************ + * arch/arm/src/imx/imx_cspi.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_IMX_CSPI_H +#define __ARCH_ARM_IMX_CSPI_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* CSPI Register Offsets ************************************************************/ + +#define CSPI_SPIRXD_OFFSET 0x0000 +#define CSPI_SPITXD_OFFSET 0x0004 +#define CSPI_SPICONT1_OFFSET 0x0008 +#define CSPI_INTCS_OFFSET 0x000c +#define CSPI_SPITEST_OFFSET 0x0010 +#define CSPI_SPISPCR_OFFSET 0x0014 +#define CSPI_SPIDMA_OFFSET 0x0018 +#define CSPI_SPIRESET_OFFSET 0x001c + +/* CSPI Register Addresses **********************************************************/ + +/* CSPI1 */ + +#define IMX_CSPI1_SPIRXD (IMX_CSPI1_VBASE + CSPI_SPIRXD_OFFSET) +#define IMX_CSPI1_SPITXD (IMX_CSPI1_VBASE + CSPI_SPITXD_OFFSET) +#define IMX_CSPI1_SPICONT1 (IMX_CSPI1_VBASE + CSPI_SPICONT1_OFFSET) +#define IMX_CSPI1_INTCS (IMX_CSPI1_VBASE + CSPI_INTCS_OFFSET) +#define IMX_CSPI1_SPITEST (IMX_CSPI1_VBASE + CSPI_SPITEST_OFFSET) +#define IMX_CSPI1_SPISPCR (IMX_CSPI1_VBASE + CSPI_SPISPCR_OFFSET) +#define IMX_CSPI1_SPIDMA (IMX_CSPI1_VBASE + CSPI_SPIDMA_OFFSET) +#define IMX_CSPI1_SPIRESET (IMX_CSPI1_VBASE + CSPI_SPIRESET_OFFSET) + +/* CSPI1 */ + +#define IMX_CSPI2_SPIRXD (IMX_CSPI2_VBASE + CSPI_SPIRXD_OFFSET) +#define IMX_CSPI2_SPITXD (IMX_CSPI2_VBASE + CSPI_SPITXD_OFFSET) +#define IMX_CSPI2_SPICONT1 (IMX_CSPI2_VBASE + CSPI_SPICONT1_OFFSET) +#define IMX_CSPI2_INTCS (IMX_CSPI2_VBASE + CSPI_INTCS_OFFSET) +#define IMX_CSPI2_SPITEST (IMX_CSPI2_VBASE + CSPI_SPITEST_OFFSET) +#define IMX_CSPI2_SPISPCR (IMX_CSPI2_VBASE + CSPI_SPISPCR_OFFSET) +#define IMX_CSPI2_SPIDMA (IMX_CSPI2_VBASE + CSPI_SPIDMA_OFFSET) +#define IMX_CSPI2_SPIRESET (IMX_CSPI2_VBASE + CSPI_SPIRESET_OFFSET) + +/* CSPI Register Bit Definitions ****************************************************/ + +/************************************************************************************ + * Inline Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +#ifndef __ASSEMBLY__ +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif /* __cplusplus */ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/* The external functions, imx_spiselect and imx_spistatus must be provided by + * board-specific logic. The are implementations of the select and status methods + * SPI interface defined by struct spi_ops_s (see include/nuttx/spi.h). All other + * methods (including up_spiinitialize()) are provided by common logic. To use this + * common SPI logic on your board: + * + * 1. Provide imx_spiselect() and imx_spistatus() functions in your board-specific + * logic. This function will perform chip selection and status operations using + * GPIOs in the way your board is configured. + * 2. Add a call to up_spiinitialize() in your low level initialization logic + * 3. The handle returned by up_spiinitialize() may then be used to bind the + * SPI driver to higher level logic (e.g., calling mmcsd_spislotinitialize(), + * for example, will bind the SPI driver to the SPI MMC/SD driver). + */ + +EXTERN void imx_spiselect(FAR struct spi_dev_s *dev, enum spi_dev_e devid, boolean selected); +EXTERN ubyte imx_spistatus(FAR struct spi_dev_s *dev, enum spi_dev_e devid); + +#undef EXTERN +#ifdef __cplusplus +} +#endif /* __cplusplus */ +#endif /* __ASSEMBLY__ */ + +#endif /* __ARCH_ARM_IMX_CSPI_H */ |