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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-10-11 19:42:01 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-10-11 19:42:01 +0000 |
commit | 1e2003f9a3eeca77c8bd8afdd8b94539c6a937fc (patch) | |
tree | a5fccb8c01f173595d23f3885046b971fb4bea7e /nuttx/include | |
parent | d81efc6097bfa2735bd804988a45bcbe822c3cbd (diff) | |
download | px4-nuttx-1e2003f9a3eeca77c8bd8afdd8b94539c6a937fc.tar.gz px4-nuttx-1e2003f9a3eeca77c8bd8afdd8b94539c6a937fc.tar.bz2 px4-nuttx-1e2003f9a3eeca77c8bd8afdd8b94539c6a937fc.zip |
Add 1st cut SPI driver for SPI MMC
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1034 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/include')
-rw-r--r-- | nuttx/include/nuttx/spi.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/nuttx/include/nuttx/spi.h b/nuttx/include/nuttx/spi.h new file mode 100644 index 000000000..0729d6403 --- /dev/null +++ b/nuttx/include/nuttx/spi.h @@ -0,0 +1,102 @@ +/**************************************************************************** + * drivers/usbdev/sp.c + * + * Copyright(C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * This logic emulates the Prolific PL2303 serial/USB converter + * + * 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 __NUTTX_SPI_H +#define __NUTTX_SPI_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* SPI status bits -- Some dedicated for SPI MMC support and may have not + * relationship to SPI other than needed by the SPI MMC interface + */ + +#define SPI_STATUS_PRESENT 0x01 /* MMC card present */ +#define SPI_STATUS_WRPROTECTED 0x02 /* MMC card write protected */ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +struct spi_ops_s +{ + void (*select)(boolean select); + uint32 (*setclockfrequency)(uint32 frequency); + ubyte (*status)(void); + ubyte (*sndbyte)(ubyte ch); + ubyte (*waitready)(void); + void (*sndblock)(ubyte *data, int datlen); + void (*recvblock)(ubyte *data, int datlen); +}; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +EXTERN void up_spinitialize(int port); + +/**************************************************************************** + * Name: up_spigetvtable + * + * Description: + * Return the vtable for the selected SPI port + * + ****************************************************************************/ + +EXTERN FAR const struct spi_ops_s *up_spigetvtable(int port); + +#undef EXTERN +#if defined(__cplusplus) +} +#endif +#endif /* __NUTTX_SPI_H */ |