| /* |
| * Copyright (c) 2016, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of the Intel Corporation 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. |
| * |
| * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> |
| * |
| * Delayed or scheduled work. Work runs in the same context as it's timer |
| * interrupt source. It should execute quickly and must not sleep or wait. |
| */ |
| |
| #ifndef __INCLUDE_WORK__ |
| #define __INCLUDE_WORK__ |
| |
| #include <stdint.h> |
| #include <sof/list.h> |
| #include <sof/timer.h> |
| |
| struct work_queue; |
| |
| /* flags */ |
| #define WORK_ASYNC (0 << 0) /* default - work is scheduled asynchronously */ |
| #define WORK_SYNC (1 << 0) /* work is scheduled synchronously */ |
| |
| struct work { |
| uint64_t (*cb)(void*, uint64_t udelay); /* returns reschedule timeout in msecs */ |
| void *cb_data; |
| struct list_item list; |
| uint64_t timeout; |
| uint32_t pending; |
| uint32_t flags; |
| }; |
| |
| struct work_queue_timesource { |
| struct timer timer; |
| int clk; |
| int notifier; |
| int (*timer_set)(struct timer *, uint64_t ticks); |
| void (*timer_clear)(struct timer *); |
| uint64_t (*timer_get)(struct timer *); |
| }; |
| |
| /* initialise our work */ |
| #define work_init(w, x, xd, xflags) \ |
| (w)->cb = x; \ |
| (w)->cb_data = xd; \ |
| (w)->flags = xflags; |
| |
| /* schedule/cancel work on work queue */ |
| void work_schedule(struct work_queue *queue, struct work *w, uint64_t timeout); |
| void work_reschedule(struct work_queue *queue, struct work *w, uint64_t timeout); |
| void work_cancel(struct work_queue *queue, struct work *work); |
| |
| /* schedule/cancel work on default system work queue */ |
| void work_schedule_default(struct work *work, uint64_t timeout); |
| void work_reschedule_default(struct work *work, uint64_t timeout); |
| void work_reschedule_default_at(struct work *w, uint64_t time); |
| void work_cancel_default(struct work *work); |
| |
| /* create new work queue */ |
| struct work_queue *work_new_queue(struct work_queue_timesource *ts); |
| |
| /* init system workq */ |
| void init_system_workq(struct work_queue_timesource *ts); |
| |
| #endif |