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nuttx/configs/mcb1700/src/lpc17_bringup.c
Gregory Nutt 50ca32e254 Squashed commit of the following: 
sched/:  Convert legitimate uses of task_create() to nxtask_create().  Review handling of returned values from all uses of kthread_create() (as well as nxtask_create()).
    graphics/:  Review return values for all calls to kthread_start() because it no longer returns an errno.
    drivers/:  threads started by drivers should be kernel threads, not user tasks.  Review return values for all calls to kthread_start() because it no longer returns an errno.
    configs/:  threads started by board bringup logic should be kernel threads, not user tasksi (part 2 of 2).
    sched/task:  Add nxtask_create().  Kthread_create() and nxtask_create() are internal OS functions and should not modify the errno variable.  configs/:  threads started by board bringup logic should be kernel threads, not user tasks.
2018-01-31 16:11:54 -06:00

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/****************************************************************************
* config/mcb1700/src/lpc17_bringup.c
*
* Copyright (C) 2017 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 <sys/mount.h>
#include <stdio.h>
#include <unistd.h>
#include <syslog.h>
#include <errno.h>
#include <nuttx/kthread.h>
#include <nuttx/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/mmcsd.h>
#include <nuttx/usb/usbhost.h>
#include "lpc17_ssp.h"
#include "lpc17_gpio.h"
#include "lpc17_usbhost.h"
#include "mcb1700.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#define HAVE_MMCSD 1
#define HAVE_USBHOST 1
/* MMC/SD is on SSP port 1. There is only a single slot, slot 0 */
#ifdef CONFIG_NSH_ARCHINIT
# if !defined(CONFIG_NSH_MMCSDSPIPORTNO) || CONFIG_NSH_MMCSDSPIPORTNO != 1
# undef CONFIG_NSH_MMCSDSPIPORTNO
# define CONFIG_NSH_MMCSDSPIPORTNO 1
# endif
# if !defined(CONFIG_NSH_MMCSDSLOTNO) || CONFIG_NSH_MMCSDSLOTNO != 0
# undef CONFIG_NSH_MMCSDSLOTNO
# define CONFIG_NSH_MMCSDSLOTNO 0
# endif
# ifndef CONFIG_NSH_MMCSDMINOR
# define CONFIG_NSH_MMCSDMINOR 0
# endif
#else
# undef CONFIG_NSH_MMCSDSPIPORTNO
# define CONFIG_NSH_MMCSDSPIPORTNO 1
# undef CONFIG_NSH_MMCSDSLOTNO
# define CONFIG_NSH_MMCSDSLOTNO 0
# undef CONFIG_NSH_MMCSDMINOR
# define CONFIG_NSH_MMCSDMINOR 0
#endif
/* Can't support MMC/SD is SSP1 is not enabled */
#ifndef CONFIG_LPC17_SSP1
# undef HAVE_MMCSD
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#if defined(CONFIG_DISABLE_MOUNTPOINT)
# undef HAVE_MMCSD
#endif
/* USB Host */
#ifdef CONFIG_USBHOST
# ifndef CONFIG_LPC17_USBHOST
# error "CONFIG_LPC17_USBHOST is not selected"
# endif
#endif
#ifdef CONFIG_LPC17_USBHOST
# ifndef CONFIG_USBHOST
# warning "CONFIG_USBHOST is not selected"
# endif
#endif
#if !defined(CONFIG_USBHOST) || !defined(CONFIG_LPC17_USBHOST)
# undef HAVE_USBHOST
#endif
#ifdef HAVE_USBHOST
# ifndef CONFIG_MCB1700_USBHOST_PRIO
# define CONFIG_MCB1700_USBHOST_PRIO 50
# endif
# ifndef CONFIG_MCB1700_USBHOST_STACKSIZE
# define CONFIG_MCB1700_USBHOST_STACKSIZE 1024
# endif
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef HAVE_USBHOST
static struct usbhost_connection_s *g_usbconn;
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_waiter
*
* Description:
* Wait for USB devices to be connected.
*
****************************************************************************/
#ifdef HAVE_USBHOST
static int nsh_waiter(int argc, char *argv[])
{
struct usbhost_hubport_s *hport;
syslog(LOG_INFO, "nsh_waiter: Running\n");
for (;;)
{
/* Wait for the device to change state */
DEBUGVERIFY(CONN_WAIT(g_usbconn, &hport));
syslog(LOG_INFO, "nsh_waiter: %s\n", hport->connected ? "connected" : "disconnected");
/* Did we just become connected? */
if (hport->connected)
{
/* Yes.. enumerate the newly connected device */
(void)CONN_ENUMERATE(g_usbconn, hport);
}
}
/* Keep the compiler from complaining */
return 0;
}
#endif
/****************************************************************************
* Name: nsh_sdinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef HAVE_MMCSD
static int nsh_sdinitialize(void)
{
FAR struct spi_dev_s *ssp;
int ret;
/* Enable power to the SD/MMC via a GPIO. LOW enables SD/MMC. */
lpc17_gpiowrite(MCB1700_MMC_PWR, false);
/* Get the SSP port. MMC/SD is on SSP port 1. */
ssp = lpc17_sspbus_initialize(CONFIG_NSH_MMCSDSPIPORTNO);
if (!ssp)
{
syslog(LOG_ERR, "ERROR: Failed to initialize SSP port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
ret = -ENODEV;
goto errout;
}
syslog(LOG_INFO, "Successfully initialized SSP port %d\n",
CONFIG_NSH_MMCSDSPIPORTNO);
/* Bind the SSP port to the slot */
ret = mmcsd_spislotinitialize(CONFIG_NSH_MMCSDMINOR,
CONFIG_NSH_MMCSDSLOTNO, ssp);
if (ret < 0)
{
syslog(LOG_ERR,
"ERROR: Failed to bind SSP port %d to MMC/SD slot %d: %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO, ret);
goto errout;
}
syslog(LOG_INFO, "Successfully bound SSP port %d to MMC/SD slot %d\n",
CONFIG_NSH_MMCSDSPIPORTNO,
CONFIG_NSH_MMCSDSLOTNO);
return OK;
/* Disable power to the SD/MMC via a GPIO. HIGH disables SD/MMC. */
errout:
lpc17_gpiowrite(MCB1700_MMC_PWR, true);
return ret;
}
#else
# define nsh_sdinitialize() (OK)
#endif
/****************************************************************************
* Name: nsh_usbhostinitialize
*
* Description:
* Initialize SPI-based microSD.
*
****************************************************************************/
#ifdef 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:
*/
syslog(LOG_INFO, "Register class drivers\n");
#ifdef CONFIG_USBHOST_HUB
/* Initialize USB hub support */
ret = usbhost_hub_initialize();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: usbhost_hub_initialize failed: %d\n", ret);
}
#endif
#ifdef CONFIG_USBHOST_MSC
/* Initialize mass storage support */
ret = usbhost_msc_initialize();
if (ret != OK)
{
syslog(LOG_ERR, "ERROR: Failed to register the mass storage class: %d\n", ret);
}
#endif
#ifdef CONFIG_USBHOST_CDCACM
/* Register the CDC/ACM serial class */
ret = usbhost_cdcacm_initialize();
if (ret != OK)
{
syslog(LOG_ERR, "ERROR: Failed to register the CDC/ACM serial class: %d\n", ret);
}
#endif
UNUSED(ret);
/* Then get an instance of the USB host interface */
syslog(LOG_INFO, "Initialize USB host\n");
g_usbconn = lpc17_usbhost_initialize(0);
if (g_usbconn)
{
/* Start a thread to handle device connection. */
syslog(LOG_ERR, "ERROR: Start nsh_waiter\n");
pid = kthread_create("usbhost", CONFIG_MCB1700_USBHOST_PRIO,
CONFIG_MCB1700_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: mcb1700_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_INITIALIZE=y :
* Called from board_initialize().
*
* CONFIG_BOARD_INITIALIZE=y && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int mcb1700_bringup(void)
{
int ret;
/* Initialize SPI-based microSD */
ret = nsh_sdinitialize();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to initialize SPI-based SD card: %d\n", ret);
}
/* Initialize USB host */
ret = nsh_usbhostinitialize();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to initialize USB host: %d\n", ret);
}
#ifdef CONFIG_CAN
/* Initialize CAN and register the CAN driver. */
ret = lpc1766stk_can_setup();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: lpc1766stk_can_setup failed: %d\n", ret);
}
#endif
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
}
#endif
return ret;
}
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