[444] | 1 | /* |
---|
| 2 | * Copyright (c) 2011 Aeroflex Gaisler |
---|
| 3 | * |
---|
| 4 | * BSD license: |
---|
| 5 | * |
---|
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
---|
| 7 | * of this software and associated documentation files (the "Software"), to deal |
---|
| 8 | * in the Software without restriction, including without limitation the rights |
---|
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
---|
| 10 | * copies of the Software, and to permit persons to whom the Software is |
---|
| 11 | * furnished to do so, subject to the following conditions: |
---|
| 12 | * |
---|
| 13 | * The above copyright notice and this permission notice shall be included in |
---|
| 14 | * all copies or substantial portions of the Software. |
---|
| 15 | * |
---|
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
---|
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
---|
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
---|
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
---|
| 22 | * THE SOFTWARE. |
---|
| 23 | */ |
---|
| 24 | |
---|
| 25 | |
---|
| 26 | #include <asm-leon/leonstack.h> |
---|
| 27 | #include <asm-leon/irq.h> |
---|
| 28 | #define NULL 0 |
---|
| 29 | |
---|
| 30 | TAILQ_HEAD (pending_queue, pendingaction) pending = |
---|
| 31 | TAILQ_HEAD_INITIALIZER (pending); |
---|
| 32 | |
---|
| 33 | void add_pending (struct pendingaction *a) |
---|
| 34 | { |
---|
| 35 | unsigned long old = leonbare_disable_traps (); |
---|
| 36 | TAILQ_INSERT_TAIL (&pending, a, next); |
---|
| 37 | leonbare_enable_traps (old); |
---|
| 38 | } |
---|
| 39 | |
---|
| 40 | struct pendingaction * |
---|
| 41 | get_pending () |
---|
| 42 | { |
---|
| 43 | struct pendingaction *a = 0; |
---|
| 44 | unsigned long old = leonbare_disable_traps (); |
---|
| 45 | if (a = TAILQ_FIRST (&pending)) |
---|
| 46 | { |
---|
| 47 | TAILQ_REMOVE (&pending, a, next); |
---|
| 48 | } |
---|
| 49 | leonbare_enable_traps (old); |
---|
| 50 | return a; |
---|
| 51 | } |
---|
| 52 | |
---|
| 53 | void |
---|
| 54 | process_pending () |
---|
| 55 | { |
---|
| 56 | struct pendingaction *a; |
---|
| 57 | while (a = get_pending ()) |
---|
| 58 | { |
---|
| 59 | if (a->handler) |
---|
| 60 | { |
---|
| 61 | a->handler (a->arg); |
---|
| 62 | } |
---|
| 63 | } |
---|
| 64 | } |
---|