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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-10 14:18:03 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-10 14:18:03 +0000 |
commit | dbbf70ac72fd2770a5999f116a29d780eae5ce3c (patch) | |
tree | 17ea5e2c8e44c8e37d7d4261b5e0e38e1e192c0f /nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c | |
parent | d812dd803621c2151bd29fd9bffdac0be11d2714 (diff) | |
download | px4-nuttx-dbbf70ac72fd2770a5999f116a29d780eae5ce3c.tar.gz px4-nuttx-dbbf70ac72fd2770a5999f116a29d780eae5ce3c.tar.bz2 px4-nuttx-dbbf70ac72fd2770a5999f116a29d780eae5ce3c.zip |
Add support for Code Red
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3487 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c')
-rwxr-xr-x | nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c | 322 |
1 files changed, 161 insertions, 161 deletions
diff --git a/nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c b/nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c index 89da4cfdf..01e6020d8 100755 --- a/nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c +++ b/nuttx/configs/lpcxpresso-lpc1768/src/up_ssp.c @@ -1,161 +1,161 @@ -/************************************************************************************
- * configs/lpcxpresso-lpc1768/src/up_ssp.c
- * arch/arm/src/board/up_ssp.c
- *
- * Copyright (C) 2010 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.
- *
- ************************************************************************************/
-
-/************************************************************************************
- * Included Files
- ************************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <debug.h>
-
-#include <nuttx/spi.h>
-#include <arch/board/board.h>
-
-#include "up_arch.h"
-#include "chip.h"
-#include "lpc17_internal.h"
-#include "lpcxpresso_internal.h"
-
-/* The LM3S6965 Eval Kit microSD CS is on SSI0 */
-
-#if defined(CONFIG_LPC17_SSP0) || defined(CONFIG_LPC17_SSP1)
-
-/************************************************************************************
- * Definitions
- ************************************************************************************/
-
-/* Enables debug output from this file (needs CONFIG_DEBUG too) */
-
-#undef SSP_DEBUG /* Define to enable debug */
-#undef SSP_VERBOSE /* Define to enable verbose debug */
-
-#ifdef SSP_DEBUG
-# define sspdbg lldbg
-# ifdef SSP_VERBOSE
-# define sspvdbg lldbg
-# else
-# define sspvdbg(x...)
-# endif
-#else
-# undef SSP_VERBOSE
-# define sspdbg(x...)
-# define sspvdbg(x...)
-#endif
-
-/* Dump GPIO registers */
-
-#ifdef SSP_VERBOSE
-# define ssp_dumpgpio(m) lpc17_dumpgpio(SDCCS_GPIO, m)
-#else
-# define ssp_dumpgpio(m)
-#endif
-
-/************************************************************************************
- * Private Functions
- ************************************************************************************/
-
-/************************************************************************************
- * Public Functions
- ************************************************************************************/
-
-/************************************************************************************
- * Name: lpc17_sspinitialize
- *
- * Description:
- * Called to configure SPI chip select GPIO pins for the LM3S6965 Eval Kit.
- *
- ************************************************************************************/
-
-void weak_function lpc17_sspinitialize(void)
-{
- /* Configure the SPI-based microSD CS GPIO */
-
- ssp_dumpgpio("lpc17_sspinitialize() Entry)");
-#warning "Configure chip selects here"
- ssp_dumpgpio("lpc17_sspinitialize() Exit");
-}
-
-/************************************************************************************
- * Name: lpc17_ssp0/ssp1select and lpc17_ssp0/ssp1status
- *
- * Description:
- * The external functions, lpc17_ssp0/ssp1select and lpc17_ssp0/ssp1status
- * must be provided by board-specific logic. They are implementations of the select
- * and status methods of the SPI interface defined by struct spi_ops_s (see
- * include/nuttx/spi.h). All other methods (including up_spiinitialize())
- * are provided by common LPC17xx logic. To use this common SPI logic on your
- * board:
- *
- * 1. Provide logic in lpc17_boardinitialize() to configure SPI/SSP chip select
- * pins.
- * 2. Provide lpc17_ssp0/ssp1select() and lpc17_ssp0/ssp1status() functions
- * in your board-specific logic. These functions will perform chip selection
- * and status operations using GPIOs in the way your board is configured.
- * 3. Add a calls to up_spiinitialize() in your low level application
- * initialization logic
- * 4. 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).
- *
- ************************************************************************************/
-
-#ifdef CONFIG_LPC17_SSP0
-void lpc17_ssp0select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
-{
- sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
- ssp_dumpgpio("lpc17_spiselect() Entry");
-
-#warning "Assert CS here (false)"
-
- ssp_dumpgpio("lpc17_spiselect() Exit");
-}
-
-uint8_t lpc17_ssp0status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
-{
- sspdbg("Returning SPI_STATUS_PRESENT\n");
- return SPI_STATUS_PRESENT;
-}
-#endif
-
-#ifdef CONFIG_LPC17_SSP1
-# warning "SSP1 chip selects not known"
-#endif
-
-#endif /* CONFIG_LPC17_SSP0 || CONFIG_LPC17_SSP1 */
+/************************************************************************************ + * configs/lpcxpresso-lpc1768/src/up_ssp.c + * arch/arm/src/board/up_ssp.c + * + * Copyright (C) 2010 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. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> +#include <debug.h> + +#include <nuttx/spi.h> +#include <arch/board/board.h> + +#include "up_arch.h" +#include "chip.h" +#include "lpc17_internal.h" +#include "lpcxpresso_internal.h" + +/* The LM3S6965 Eval Kit microSD CS is on SSI0 */ + +#if defined(CONFIG_LPC17_SSP0) || defined(CONFIG_LPC17_SSP1) + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* Enables debug output from this file (needs CONFIG_DEBUG too) */ + +#undef SSP_DEBUG /* Define to enable debug */ +#undef SSP_VERBOSE /* Define to enable verbose debug */ + +#ifdef SSP_DEBUG +# define sspdbg lldbg +# ifdef SSP_VERBOSE +# define sspvdbg lldbg +# else +# define sspvdbg(x...) +# endif +#else +# undef SSP_VERBOSE +# define sspdbg(x...) +# define sspvdbg(x...) +#endif + +/* Dump GPIO registers */ + +#ifdef SSP_VERBOSE +# define ssp_dumpgpio(m) lpc17_dumpgpio(SDCCS_GPIO, m) +#else +# define ssp_dumpgpio(m) +#endif + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: lpc17_sspinitialize + * + * Description: + * Called to configure SPI chip select GPIO pins for the LM3S6965 Eval Kit. + * + ************************************************************************************/ + +void weak_function lpc17_sspinitialize(void) +{ + /* Configure the SPI-based microSD CS GPIO */ + + ssp_dumpgpio("lpc17_sspinitialize() Entry)"); +#warning "Configure chip selects here" + ssp_dumpgpio("lpc17_sspinitialize() Exit"); +} + +/************************************************************************************ + * Name: lpc17_ssp0/ssp1select and lpc17_ssp0/ssp1status + * + * Description: + * The external functions, lpc17_ssp0/ssp1select and lpc17_ssp0/ssp1status + * must be provided by board-specific logic. They are implementations of the select + * and status methods of the SPI interface defined by struct spi_ops_s (see + * include/nuttx/spi.h). All other methods (including up_spiinitialize()) + * are provided by common LPC17xx logic. To use this common SPI logic on your + * board: + * + * 1. Provide logic in lpc17_boardinitialize() to configure SPI/SSP chip select + * pins. + * 2. Provide lpc17_ssp0/ssp1select() and lpc17_ssp0/ssp1status() functions + * in your board-specific logic. These functions will perform chip selection + * and status operations using GPIOs in the way your board is configured. + * 3. Add a calls to up_spiinitialize() in your low level application + * initialization logic + * 4. 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). + * + ************************************************************************************/ + +#ifdef CONFIG_LPC17_SSP0 +void lpc17_ssp0select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected) +{ + sspdbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert"); + ssp_dumpgpio("lpc17_spiselect() Entry"); + +#warning "Assert CS here (false)" + + ssp_dumpgpio("lpc17_spiselect() Exit"); +} + +uint8_t lpc17_ssp0status(FAR struct spi_dev_s *dev, enum spi_dev_e devid) +{ + sspdbg("Returning SPI_STATUS_PRESENT\n"); + return SPI_STATUS_PRESENT; +} +#endif + +#ifdef CONFIG_LPC17_SSP1 +# warning "SSP1 chip selects not known" +#endif + +#endif /* CONFIG_LPC17_SSP0 || CONFIG_LPC17_SSP1 */ |