/****************************************************************************
* config/open1788/src/lpc17_nsh.c
* arch/arm/src/board/lpc17_nsh.c
*
* Copyright (C) 2013 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 <unistd.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/sdio.h>
#include <nuttx/mmcsd.h>
#include <nuttx/usb/usbhost.h>
#include "lpc17_gpio.h"
#include "lpc17_sdcard.h"
#include "lpc17_usbhost.h"
#include "open1788.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#define NSH_HAVE_MMCSD 1
#define NSH_HAVE_USBHOST 1
#define NSH_HAVE_USBHDEV 1
#undef NSH_HAVE_MMCSD_CD
#undef NSH_HAVE_MMCSD_CDINT
/* MMC/SD support */
#if !defined(CONFIG_LPC17_SDCARD) || !defined(CONFIG_MMCSD) && !defined(CONFIG_MMCD_SDIO)
# undef NSH_HAVE_MMCSD
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#if defined(CONFIG_DISABLE_MOUNTPOINT)
# undef NSH_HAVE_MMCSD
#endif
/* MMC/SD support requires that an SPI support is enabled and an SPI port is selected */
#ifdef NSH_HAVE_MMCSD
# if !defined(CONFIG_NSH_MMCSDSLOTNO)
# warning "Assuming slot MMC/SD slot 0"
# define CONFIG_NSH_MMCSDSLOTNO 0
# endif
#endif
#ifdef NSH_HAVE_MMCSD
# if !defined(CONFIG_NSH_MMCSDMINOR)
# warning "Assuming /dev/mmcsd0"
# define CONFIG_NSH_MMCSDMINOR 0
# endif
#endif
/* The SD card detect (CD) signal is on P0[13]. This signal is shared. It is also
* used for MOSI1 and USB_UP_LED. The CD pin may be disconnected. There is a jumper
* on board that enables the CD pin.
*/
#ifdef NSH_HAVE_MMCSD
# ifdef CONFIG_MMCSD_HAVECARDDETECT
# define NSH_HAVE_MMCSD_CD 1
# ifdef CONFIG_GPIO_IRQ
# define NSH_HAVE_MMCSD_CDINT 1
# endif
# endif
#endif
#if defined(NSH_HAVE_MMCSD_CD) && \
(defined(CONFIG_LPC17_SSP1) || defined(CONFIG_LPC17_USBDEV))
# warning "Use of SD Card Detect pin conflicts with SSP1 and/or USB device"
#endif
/* USB Host */
#ifndef CONFIG_USBHOST
# undef NSH_HAVE_USBHOST
#endif
#ifndef CONFIG_LPC17_USBHOST
# undef NSH_HAVE_USBHOST
#endif
#ifdef NSH_HAVE_USBHOST
# ifndef CONFIG_USBHOST_DEFPRIO
# define CONFIG_USBHOST_DEFPRIO 50
# endif
# ifndef CONFIG_USBHOST_STACKSIZE
# define CONFIG_USBHOST_STACKSIZE 1024
# endif
#endif
/* USB Device */
#ifndef CONFIG_USBDEV
# undef NSH_HAVE_USBDEV
#endif
#ifndef CONFIG_LPC17_USBDEV
# undef NSH_HAVE_USBDEV
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# if defined(CONFIG_DEBUG) || !defined(CONFIG_NSH_ARCHINIT)
# define message(...) lowsyslog(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# if defined(CONFIG_DEBUG) || !defined(CONFIG_NSH_ARCHINIT)
# define message lowsyslog
# else
# define message printf
# endif
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef NSH_HAVE_USBHOST
static struct usbhost_connection_s *g_usbconn;
#endif
#ifdef NSH_HAVE_MMCSD
static FAR struct sdio_dev_s *g_sdiodev;
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_waiter
*
* Description:
* Wait for USB devices to be connected.
*
****************************************************************************/
#ifdef NSH_HAVE_USBHOST
static int nsh_waiter(int argc, char *argv[])
{
bool connected = false;
int ret;
message("nsh_waiter: Running\n");
for (;;)
{
/* Wait for the device to change state */
ret = CONN_WAIT(g_usbconn, &connected);
DEBUGASSERT(ret == OK);
connected = !connected;
message("nsh_waiter: %s\n", connected ? "connected" : "disconnected");
/* Did we just become connected? */
if (connected)
{
/* Yes.. enumerate the newly connected device */
(void)CONN_ENUMERATE(g_usbconn, 0);
}
}
/* Keep the compiler from complaining */
return 0;
}
#endif
/****************************************************************************
* Name: nsh_cdinterrupt
*
* Description:
* Card detect interrupt handler.
*
****************************************************************************/
#ifdef NSH_HAVE_MMCSD_CDINT
static int nsh_cdinterrupt(int irq, FAR void *context)
{
static bool inserted = 0xff; /* Impossible value */
bool present;
present = !lpc17_gpioread(GPIO_SD_CD);
if (present != inserted)
{
sdio_mediachange(g_sdiodev, present);
inserted = present;
}
return OK;
}
#endif
/****************************************************************************
* Name: nsh_sdinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVE_MMCSD
static int nsh_sdinitialize(void)
{
int ret;
#ifdef NSH_HAVE_MMCSD_CD
/* Configure the SD card detect GPIO */
lpc17_configgpio(GPIO_SD_CD);
/* Attach an interrupt handler to get notifications when a card is
* inserted or deleted.
*/
#if NSH_HAVE_MMCSD_CDINT
(void)irq_attach(LPC17_IRQ_P0p13, nsh_cdinterrupt);
up_enable_irq(LPC17_IRQ_P0p13);
#endif
#endif
/* First, get an instance of the SDIO interface */
g_sdiodev = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
if (!g_sdiodev)
{
message("nsh_archinitialize: Failed to initialize SDIO slot %d\n",
CONFIG_NSH_MMCSDSLOTNO);
return -ENODEV;
}
/* Now bind the SDIO interface to the MMC/SD driver */
ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, g_sdiodev);
if (ret != OK)
{
message("nsh_archinitialize: "
"Failed to bind SDIO to the MMC/SD driver: %d\n",
ret);
return ret;
}
/* Check if there is a card in the slot and inform the SDCARD driver. If
* we do not support the card detect, then let's assume that there is
* one.
*/
#ifdef NSH_HAVE_MMCSD_CD
sdio_mediachange(g_sdiodev, !lpc17_gpioread(GPIO_SD_CD));
#else
sdio_mediachange(g_sdiodev, true);
#endif
return OK;
}
#else
# define nsh_sdinitialize() (OK)
#endif
/****************************************************************************
* Name: nsh_usbhostinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVE_USBHOST
static int nsh_usbhostinitialize(void)
{
int pid;
int ret;
/* First, register all of the class drivers needed to support the drivers
* that we care about:
*/
message("nsh_usbhostinitialize: Register class drivers\n");
ret = usbhost_storageinit();
if (ret != OK)
{
message("nsh_usbhostinitialize: Failed to register the mass storage class\n");
}
/* Then get an instance of the USB host interface */
message("nsh_usbhostinitialize: Initialize USB host\n");
g_usbconn = lpc17_usbhost_initialize(0);
if (g_usbconn)
{
/* Start a thread to handle device connection. */
message("nsh_usbhostinitialize: Start nsh_waiter\n");
pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO,
CONFIG_USBHOST_STACKSIZE,
(main_t)nsh_waiter, (FAR char * const *)NULL);
return pid < 0 ? -ENOEXEC : OK;
}
return -ENODEV;
}
#else
# define nsh_usbhostinitialize() (OK)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization for NSH.
*
* CONFIG_NSH_ARCHINIT=y :
* Called from the NSH library
*
* CONFIG_BOARD_INITIALIZE=y, CONFIG_NSH_LIBRARY=y, &&
* CONFIG_NSH_ARCHINIT=n:
* Called from board_initialize().
*
****************************************************************************/
int nsh_archinitialize(void)
{
int ret;
/* Initialize SPI-based microSD */
ret = nsh_sdinitialize();
if (ret == OK)
{
/* Initialize USB host */
ret = nsh_usbhostinitialize();
}
return ret;
}
