/****************************************************************************
* config/pic32-starterkit/src/up_nsh.c
* arch/arm/src/board/up_nsh.c
*
* Copyright (C) 2011 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/spi/spi.h>
#include <nuttx/mmcsd.h>
#include <nuttx/usb/usbhost.h>
#include "pic32mx-internal.h"
#include "starterkit_internal.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Assume that we have MMC/SD, USB host (and USB device) */
#define NSH_HAVEMMCSD 1
#define NSH_HAVEUSBHOST 1
/* The PIC32 Ethernet Starter Kit does not have an SD slot on board. If one
* is added, then it must be specified by defining which SPI bus that it
* is connected on.
*/
#ifndef CONFIG_PIC32MX_MMCSDSPIPORTNO
# undef NSH_HAVEMMCSD
#endif
/* Make sure that the configuration will support the SD card */
#ifdef NSH_HAVEMMCSD
/* Make sure that the NSH configuration uses the correct SPI */
# if !defined(CONFIG_NSH_MMCSDSPIPORTNO)
# define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO
# elif CONFIG_NSH_MMCSDSPIPORTNO != CONFIG_PIC32MX_MMCSDSPIPORTNO
# warning "CONFIG_PIC32MX_MMCSDSPIPORTNO does not match CONFIG_NSH_MMCSDSPIPORTNO"
# undef CONFIG_NSH_MMCSDSPIPORTNO
# define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO
# endif
/* Make sure that the NSH configuration uses the slot */
# if !defined(CONFIG_NSH_MMCSDSLOTNO) || CONFIG_NSH_MMCSDSLOTNO != 0
# warning "The PIC32 Starter Kit has only one slot (0)"
# undef CONFIG_NSH_MMCSDSLOTNO
# define CONFIG_NSH_MMCSDSLOTNO 0
# endif
/* Make sure that the correct SPI is enabled in the configuration */
# if CONFIG_PIC32MX_MMCSDSPIPORTNO == 1 && !defined(CONFIG_PIC32MX_SPI1)
# warning "CONFIG_PIC32MX_SPI1 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 2 && !defined(CONFIG_PIC32MX_SPI2)
# warning "CONFIG_PIC32MX_SPI2 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 3 && !defined(CONFIG_PIC32MX_SPI3)
# warning "CONFIG_PIC32MX_SPI3 is not enabled"
# undef NSH_HAVEMMCSD
# elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 4 && !defined(CONFIG_PIC32MX_SPI4)
# warning "CONFIG_PIC32MX_SPI4 is not enabled"
# undef NSH_HAVEMMCSD
# endif
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#if defined(CONFIG_DISABLE_MOUNTPOINT)
# undef NSH_HAVEMMCSD
#endif
/* Select /dev/mmcsd0 if no other minor number is provided */
#ifndef CONFIG_NSH_MMCSDMINOR
# define CONFIG_NSH_MMCSDMINOR 0
#endif
/* USB Host */
#ifdef CONFIG_USBHOST
# ifndef CONFIG_PIC32MX_USBHOST
# error "CONFIG_PIC32MX_USBHOST is not selected"
# undef NSH_HAVEUSBHOST
# endif
#endif
#ifdef CONFIG_PIC32MX_USBHOST
# ifndef CONFIG_USBHOST
# warning "CONFIG_USBHOST is not selected"
# undef NSH_HAVEUSBHOST
# endif
#endif
#if !defined(CONFIG_USBHOST) || !defined(CONFIG_PIC32MX_USBHOST)
# undef NSH_HAVEUSBHOST
#endif
#ifdef NSH_HAVEUSBHOST
# ifndef CONFIG_USBHOST_DEFPRIO
# define CONFIG_USBHOST_DEFPRIO 50
# endif
# ifndef CONFIG_USBHOST_STACKSIZE
# define CONFIG_USBHOST_STACKSIZE 1024
# endif
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lowsyslog(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lowsyslog
# else
# define message printf
# endif
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
static struct usbhost_connection_s *g_usbconn;
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_waiter
*
* Description:
* Wait for USB devices to be connected.
*
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
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_sdinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVEMMCSD
static int nsh_sdinitialize(void)
{
FAR struct spi_dev_s *ssp;
int ret;
/* Get the SPI port */
ssp = up_spiinitialize(CONFIG_NSH_MMCSDSPIPORTNO);
if (!ssp)
{
message("nsh_archinitialize: Failed to initialize SPI port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
ret = -ENODEV;
goto errout;
}
message("Successfully initialized SPI port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
/* Bind the SPI port to the slot */
ret = mmcsd_spislotinitialize(CONFIG_NSH_MMCSDMINOR,
CONFIG_NSH_MMCSDSLOTNO, ssp);
if (ret < 0)
{
message("nsh_sdinitialize: "
"Failed to bind SPI port %d to MMC/SD slot %d: %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO, ret);
goto errout;
}
message("Successfuly bound SPI port %d to MMC/SD slot %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO);
return OK;
errout:
return ret;
}
#else
# define nsh_sdinitialize() (OK)
#endif
/****************************************************************************
* Name: nsh_usbhostinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef NSH_HAVEUSBHOST
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 = pic32_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
/****************************************************************************
* Name: nsh_usbdevinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef CONFIG_USBDEV
static int nsh_usbdevinitialize(void)
{
/* The PIC32 Starter Kit has no way to know when the USB is connected. So
* we will fake it and tell the USB driver that the USB is connected now.
*/
pic32mx_usbattach();
return OK;
}
#else
# define nsh_usbdevinitialize() (OK)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int nsh_archinitialize(void)
{
int ret;
/* Initialize SPI-based microSD */
ret = nsh_sdinitialize();
if (ret == OK)
{
/* Initialize USB host */
ret = nsh_usbhostinitialize();
}
if (ret == OK)
{
/* Initialize USB device */
ret = nsh_usbdevinitialize();
}
return ret;
}
