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6e9039bb08
fs/userfs: This completes coding of the UserFS client and of the UserFS feature in general. This feature is being merged to main now because I believe it is innocuous. It is, however, untesed. The next step will be to develop a test case to verify the feature.
fs/userfs: Completes the request logic for the UserFS client. Still need the logic that receives the responses.
fs/userfs: Completes coding for most of the server side of the user filesystem logic.
fs/userfs: Big design changes, simplications. Use Unix domain local sockets instead of message queues. Easier to transfer big data in local sockets than message queues. Remove character drvier 'factory' it is not necessary.
fs/userfs: Minor reparitioning; volume private info does not need to be held on the OS client side.
libc/userfs: Add some of the server side logic.
fs/userfs: Add some UserFS initialization logic.
fs/userfs: Add frame work for the UserFS proxy. Remove all references to a block driver. There is no block dricer... what was I thinking?
fs/userfs: Add some initialization of the character driver, 'factory' device.
fs/userfs: Rename from fusefs to userfs to that we don't stomp on someone else's cool name.
Add a header file describing the fusefs interface.
210 lines
6.4 KiB
C
210 lines
6.4 KiB
C
/****************************************************************************
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* arch/risc-v/src/common/up_initialize.c
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*
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* Copyright (C) 2007-2010, 2012-2015, 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/mm/iob.h>
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#include <nuttx/serial/pty.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "up_internal.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_calibratedelay
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*
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* Description:
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* Delay loops are provided for short timing loops. This function, if
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* enabled, will just wait for 100 seconds. Using a stopwatch, you can
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* can then determine if the timing loops are properly calibrated.
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*
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****************************************************************************/
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#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG)
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static void up_calibratedelay(void)
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{
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int i;
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lldbg("Beginning 100s delay\n");
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for (i = 0; i < 100; i++)
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{
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up_mdelay(1000);
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}
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lldbg("End 100s delay\n");
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}
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#else
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# define up_calibratedelay()
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#endif
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/****************************************************************************
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* Name: up_color_intstack
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*
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* Description:
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* Set the interrupt stack to a value so that later we can determine how
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* much stack space was used by interrupt handling logic
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*
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****************************************************************************/
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#if defined(CONFIG_STACK_COLORATION) && CONFIG_ARCH_INTERRUPTSTACK > 3
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static inline void up_color_intstack(void)
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{
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uint32_t *ptr = (uint32_t *)&g_intstackalloc;
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ssize_t size;
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for (size = (CONFIG_ARCH_INTERRUPTSTACK & ~3);
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size > 0;
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size -= sizeof(uint32_t))
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{
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*ptr++ = INTSTACK_COLOR;
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}
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}
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#else
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# define up_color_intstack()
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_initialize
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*
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* Description:
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* up_initialize will be called once during OS initialization after the
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* basic OS services have been initialized. The architecture specific
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* details of initializing the OS will be handled here. Such things as
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* setting up interrupt service routines, starting the clock, and
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* registering device drivers are some of the things that are different
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* for each processor and hardware platform.
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*
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* up_initialize is called after the OS initialized but before the user
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* initialization logic has been started and before the libraries have
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* been initialized. OS services and driver services are available.
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*
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****************************************************************************/
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void up_initialize(void)
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{
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/* Calibrate the timing loop */
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up_calibratedelay();
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/* Colorize the interrupt stack */
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up_color_intstack();
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/* Add any extra memory fragments to the memory manager */
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up_addregion();
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/* Initialize the interrupt subsystem */
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up_irqinitialize();
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/* Initialize the system timer interrupt */
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#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS) && \
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!defined(CONFIG_SYSTEMTICK_EXTCLK)
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riscv_timer_initialize();
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#endif
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#ifdef CONFIG_MM_IOB
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/* Initialize IO buffering */
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iob_initialize();
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0
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/* Register devices */
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#if defined(CONFIG_DEV_NULL)
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devnull_register(); /* Standard /dev/null */
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#endif
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#if defined(CONFIG_DEV_ZERO)
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devzero_register(); /* Standard /dev/zero */
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#endif
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#endif /* CONFIG_NFILE_DESCRIPTORS */
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/* Initialize the serial device driver */
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#ifdef USE_SERIALDRIVER
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up_serialinit();
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#endif
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/* Initialize the console device driver (if it is other than the standard
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* serial driver).
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*/
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#if defined(CONFIG_DEV_LOWCONSOLE)
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lowconsole_init();
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#elif defined(CONFIG_SYSLOG_CONSOLE)
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syslog_console_init();
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#elif defined(CONFIG_RAMLOG_CONSOLE)
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ramlog_consoleinit();
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#endif
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#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_PSEUDOTERM_SUSV1)
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/* Register the master pseudo-terminal multiplexor device */
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(void)ptmx_register();
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#endif
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/* Early initialization of the system logging device. Some SYSLOG channel
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* can be initialized early in the initialization sequence because they
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* depend on only minimal OS initialization.
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*/
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syslog_initialize(SYSLOG_INIT_EARLY);
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#ifdef CONFIG_RAMLOG_SYSLOG
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ramlog_sysloginit();
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#endif
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board_autoled_on(LED_IRQSENABLED);
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}
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