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author | Gregory Nutt <gnutt@nuttx.org> | 2014-09-01 12:27:17 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2014-09-01 12:27:17 -0600 |
commit | 9ee5cfaffa313949563fb37f7cd39a2b7620a4dd (patch) | |
tree | c4ac8ef00bbc20cd9d265d6fdc1e917f3a96eb37 /nuttx/arch/8051/src/up_unblocktask.c | |
parent | e21b9a799cafb19d617995579d5b16739a34f2bb (diff) | |
download | px4-nuttx-9ee5cfaffa313949563fb37f7cd39a2b7620a4dd.tar.gz px4-nuttx-9ee5cfaffa313949563fb37f7cd39a2b7620a4dd.tar.bz2 px4-nuttx-9ee5cfaffa313949563fb37f7cd39a2b7620a4dd.zip |
Obsolete support for the 8051 family. Trying to maintain compatibility with this family is too much effort and there has never really been a successful NuttX impplementation on these parts
Diffstat (limited to 'nuttx/arch/8051/src/up_unblocktask.c')
-rw-r--r-- | nuttx/arch/8051/src/up_unblocktask.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/nuttx/arch/8051/src/up_unblocktask.c b/nuttx/arch/8051/src/up_unblocktask.c deleted file mode 100644 index 36d6ed1ef..000000000 --- a/nuttx/arch/8051/src/up_unblocktask.c +++ /dev/null @@ -1,161 +0,0 @@ -/************************************************************************ - * up_unblocktask.c - * - * Copyright (C) 2007, 2009, 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 <sched.h> -#include <debug.h> - -#include <nuttx/arch.h> - -#include "clock/clock.h" -#include "sched/sched.h" -#include "up_internal.h" - -/************************************************************************ - * Private Definitions - ************************************************************************/ - -/************************************************************************ - * Private Data - ************************************************************************/ - -/************************************************************************ - * Private Funtions - ************************************************************************/ - -/************************************************************************ - * Public Funtions - ************************************************************************/ - -/************************************************************************ - * Name: up_unblock_task - * - * Description: - * A task is currently in an inactive task list - * but has been prepped to execute. Move the TCB to the - * ready-to-run list, restore its context, and start execution. - * - * Inputs: - * tcb: Refers to the tcb to be unblocked. This tcb is - * in one of the waiting tasks lists. It must be moved to - * the ready-to-run list and, if it is the highest priority - * ready to run taks, executed. - * - ************************************************************************/ - -void up_unblock_task(FAR struct tcb_s *tcb) -{ - FAR struct tcb_s *rtcb = (FAR struct tcb_s*)g_readytorun.head; - - /* Verify that the context switch can be performed */ - - ASSERT((tcb->task_state >= FIRST_BLOCKED_STATE) && - (tcb->task_state <= LAST_BLOCKED_STATE)); - - dbg("Unblocking TCB=%p\n", tcb); - - /* Remove the task from the blocked task list */ - - sched_removeblocked(tcb); - - /* Reset its timeslice. This is only meaningful for round - * robin tasks but it doesn't here to do it for everything - */ - -#if CONFIG_RR_INTERVAL > 0 - tcb->timeslice = MSEC2TICK(CONFIG_RR_INTERVAL); -#endif - - /* Add the task in the correct location in the prioritized - * g_readytorun task list - */ - - if (sched_addreadytorun(tcb)) - { - /* The currently active task has changed! We need to do - * a context switch to the new task. - * - * Are we in an interrupt handler? - */ - - if (g_irqtos) - { - /* Yes, then we have to do things differently. - * Just copy the current stack into the OLD rtcb. - */ - - up_saveirqcontext(&rtcb->xcp); - - /* Restore the exception context of the rtcb at the (new) head - * of the g_readytorun task list. - */ - - rtcb = (FAR struct tcb_s*)g_readytorun.head; - dbg("New Active Task TCB=%p\n", rtcb); - - /* Then setup so that the context will be performed on exit - * from the interrupt. - */ - - g_irqcontext = &rtcb->xcp; - } - - /* We are not in an interrupt andler. Copy the user C context - * into the TCB of the task that was previously active. if - * up_savecontext returns a non-zero value, then this is really the - * previously running task restarting! - */ - - else if (!up_savecontext(&rtcb->xcp)) - { - /* Restore the exception context of the new task that is ready to - * run (probably tcb). This is the new rtcb at the head of the - * g_readytorun task list. - */ - - rtcb = (FAR struct tcb_s*)g_readytorun.head; - dbg("New Active Task TCB=%p\n", rtcb); - - /* Then switch contexts */ - - up_restorecontext(&rtcb->xcp); - } - } -} |