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Add SPI-based MMC/SD support

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2761 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-06-23 22:00:29 +00:00
parent c417eefb26
commit 0cd0c1760a
7 changed files with 361 additions and 16 deletions
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4
configs/nucleus2g/nsh/defconfig
View File

@ -113,7 +113,7 @@ CONFIG_LPC17_UART3=n
CONFIG_LPC17_CAN1=n
CONFIG_LPC17_CAN2=n
CONFIG_LPC17_SPI=n
CONFIG_LPC17_SSP0=n
CONFIG_LPC17_SSP0=y
CONFIG_LPC17_SSP1=n
CONFIG_LPC17_I2C0=n
CONFIG_LPC17_I2C1=n
@ -721,7 +721,7 @@ CONFIG_EXAMPLES_NSH_DISABLEBG=n
CONFIG_EXAMPLES_NSH_ROMFSETC=n
CONFIG_EXAMPLES_NSH_CONSOLE=y
CONFIG_EXAMPLES_NSH_TELNET=n
CONFIG_EXAMPLES_NSH_ARCHINIT=n
CONFIG_EXAMPLES_NSH_ARCHINIT=y
CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE=512
CONFIG_EXAMPLES_NSH_DHCPC=n
CONFIG_EXAMPLES_NSH_NOMAC=n

7
configs/nucleus2g/src/Makefile
View File

@ -38,9 +38,12 @@
CFLAGS += -I$(TOPDIR)/sched
ASRCS =
AOBJS = $(ASRCS:.S=$(OBJEXT))
CSRCS = up_boot.c up_leds.c up_ssp.c
ifeq ($(CONFIG_EXAMPLES_NSH_ARCHINIT),y)
CSRCS += up_nsh.c
endif
CSRCS = up_boot.c up_leds.c
AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))
SRCS = $(ASRCS) $(CSRCS)

6
configs/nucleus2g/src/nucleus2g_internal.h
View File

@ -118,6 +118,8 @@
#define NUCLEUS2G_5V_ENABLE (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT2 | GPIO_PIN13)
#define NUCLEUS2G_5V_DISABLE (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORT2 | GPIO_PIN13)
#define NUCLEUS2G_MMCSD_CS (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN16)
/************************************************************************************
* Public Types
************************************************************************************/
@ -133,14 +135,14 @@
************************************************************************************/
/************************************************************************************
* Name: lpc17_spiinitialize
* Name: lpc17_sspinitialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the NUCLEUS-2G board.
*
************************************************************************************/
extern void weak_function lpc17_spiinitialize(void);
extern void weak_function lpc17_sspinitialize(void);
/************************************************************************************
* Name: lpc17_usbinitialize

10
configs/nucleus2g/src/up_boot.c
View File

@ -90,14 +90,14 @@ void lpc17_boardinitialize(void)
lpc17_configgpio(NUCLEUS2G_232_POWERSAVE);
#endif
/* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
* lpc17_spiinitialize() has been brought into the link.
/* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak
* function lpc17_sspinitialize() has been brought into the link.
*/
#if defined(CONFIG_LPC17_SPI)
if (lpc17_spiinitialize)
#if defined(CONFIG_LPC17_SSP0) || defined(CONFIG_LPC17_SSP0)
if (lpc17_sspinitialize)
{
lpc17_spiinitialize();
lpc17_sspinitialize();
}
#endif

10
configs/nucleus2g/src/up_leds.c
View File

@ -151,8 +151,6 @@ static bool g_prevled2a;
static bool g_currled2a;
static bool g_prevled2b;
static bool g_currled2b;
static bool g_prevledhb;
static bool g_currledhb;
/****************************************************************************
* Private Functions
@ -267,7 +265,7 @@ void up_led2(uint8_t newstate)
}
/****************************************************************************
* Name: up_led2
* Name: up_ledhb
****************************************************************************/
void up_ledhb(uint8_t newstate)
@ -283,10 +281,12 @@ void up_ledhb(uint8_t newstate)
case LED_ON:
ledhb = true;
break;
case LED_NC:
return;
}
lpc17_gpiowrite(NUCLEUS2G_HEARTBEAT, ledhb);
g_prevledhb = g_currledhb;
g_currledhb = newstate;
}
/****************************************************************************

155
configs/nucleus2g/src/up_nsh.c Executable file
View File

@ -0,0 +1,155 @@
/****************************************************************************
* config/nucleus2g/src/up_nsh.c
* arch/arm/src/board/up_nsh.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 <stdio.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi.h>
#include <nuttx/mmcsd.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* PORT and SLOT number probably depend on the board configuration */
#ifdef CONFIG_ARCH_BOARD_NUCLEUS2G
# define CONFIG_EXAMPLES_NSH_HAVEUSBDEV 1
# define CONFIG_EXAMPLES_NSH_HAVEMMCSD 1
# if !defined(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO) || CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO != 0
# error "The Nucleus-2G MMC/SD is on SSP0"
# undef CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO
# define CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO 0
# endif
# if !defined(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO) || CONFIG_EXAMPLES_NSH_MMCSDSLOTNO != 0
# error "The Nucleus-2G MMC/SD is only one slot (0)"
# undef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
# define CONFIG_EXAMPLES_NSH_MMCSDSLOTNO 0
# endif
# ifndef CONFIG_LPC17_SSP0
# warning "CONFIG_LPC17_SSP0 is not enabled"
# endif
#else
# error "Unrecognized board"
# undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
# undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
#endif
/* Can't support USB features if USB is not enabled */
#ifndef CONFIG_USBDEV
# undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#if defined(CONFIG_DISABLE_MOUNTPOINT)
# undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
#endif
#ifndef CONFIG_EXAMPLES_NSH_MMCSDMINOR
# define CONFIG_EXAMPLES_NSH_MMCSDMINOR 0
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lib_lowprintf(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lib_lowprintf
# else
# define message printf
# endif
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int nsh_archinitialize(void)
{
FAR struct spi_dev_s *ssp;
int ret;
/* Get the SSP port */
ssp = up_spiinitialize(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
if (!ssp)
{
message("nsh_archinitialize: Failed to initialize SSP port %d\n",
CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
return -ENODEV;
}
message("Successfully initialized SSP port %d\n",
CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
/* Bind the SSP port to the slot */
ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_NSH_MMCSDMINOR, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO, ssp);
if (ret < 0)
{
message("nsh_archinitialize: Failed to bind SSP port %d to MMC/SD slot %d: %d\n",
CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO, ret);
return ret;
}
message("Successfuly bound SSP port %d to MMC/SD slot %d\n",
CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
return OK;
}

185
configs/nucleus2g/src/up_ssp.c Executable file
View File

@ -0,0 +1,185 @@
/************************************************************************************
* configs/nucleus2g/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 "nucleus2g_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)");
/* SSP0 connects only to the MMC/SD slot on the Nucleus 1G board.
* P0[15]/TXD1/SCK0/SCK MMC_CLK
* P0[16]/RXD1/SSEL0/SSEL MMC_CD
* P0[17]/CTS1/MISO0/MISO MMC_DATA0
* P0[18]/DCD1/MOSI0/MOSI MMC_MISO
*
* In SPI mode the MMC/SD DATA3/CD functions as the SPI chip select.
*/
#ifdef CONFIG_LPC17_SSP0
lpc17_configgpio(NUCLEUS2G_MMCSD_CS);
#endif
/* SSP1 goes off the Nucleus 2G board to the Babel CAN board along with 3 chip
* select pins. However, it is currently not used on that board.
*/
#ifdef CONFIG_LPC17_SSP1
# warning "SSP1 chip selects not known"
#endif
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");
if (devid == SPIDEV_MMCSD)
{
/* Assert the CS pin to the card */
lpc17_gpiowrite(NUCLEUS2G_MMCSD_CS, !selected);
}
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 */