| Niranjan Yadla | 19336af | 2018-04-19 12:19:27 -0700 | [diff] [blame^] | 1 | /******************************************************************************* |
| 2 | * Copyright (C) 2018 Cadence Design Systems, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | * "Software"), to use this Software with Cadence processor cores only and |
| 7 | * not with any other processors and platforms, subject to |
| 8 | * the following conditions: |
| 9 | * |
| 10 | * The above copyright notice and this permission notice shall be included |
| 11 | * in all copies or substantial portions of the Software. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 14 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 15 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 16 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 17 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 18 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 19 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | ******************************************************************************/ |
| 22 | |
| 23 | /******************************************************************************* |
| 24 | * xf-component.h |
| 25 | * |
| 26 | * Xtensa processing framework component definition |
| 27 | * |
| 28 | *******************************************************************************/ |
| 29 | |
| 30 | #ifndef __XF_H |
| 31 | #error "xf-component.h mustn't be included directly" |
| 32 | #endif |
| 33 | |
| 34 | /******************************************************************************* |
| 35 | * Types definitions |
| 36 | ******************************************************************************/ |
| 37 | |
| 38 | /* ...component literal identifier */ |
| 39 | typedef const char * const xf_id_t; |
| 40 | |
| 41 | /* ...component descriptor (base structure) */ |
| 42 | typedef struct xf_component |
| 43 | { |
| 44 | /* ...scheduler node */ |
| 45 | xf_task_t task; |
| 46 | |
| 47 | /* ...component id */ |
| 48 | u32 id; |
| 49 | |
| 50 | /* ...message-processing function */ |
| 51 | int (*entry)(struct xf_component *, xf_message_t *); |
| 52 | |
| 53 | /* ...component destructor function */ |
| 54 | int (*exit)(struct xf_component *, xf_message_t *); |
| 55 | #ifndef XAF_ENABLE_NON_HIKEY |
| 56 | /* ...output port accessor */ |
| 57 | xf_output_port_t * (*port)(struct xf_component *, u32); |
| 58 | #endif |
| 59 | |
| 60 | } xf_component_t; |
| 61 | |
| 62 | /******************************************************************************* |
| 63 | * Helpers |
| 64 | ******************************************************************************/ |
| 65 | |
| 66 | /* ...return core-id of the component */ |
| 67 | static inline u32 xf_component_core(xf_component_t *component) |
| 68 | { |
| 69 | return XF_PORT_CORE(component->id); |
| 70 | } |
| 71 | |
| 72 | /* ...schedule component execution */ |
| 73 | #define xf_component_schedule(c, dts) \ |
| 74 | ({ \ |
| 75 | xf_sched_t *__sched = &XF_CORE_DATA(xf_component_core((c)))->sched; \ |
| 76 | xf_sched_put(__sched, &(c)->task, xf_sched_timestamp(__sched) + (dts)); \ |
| 77 | }) |
| 78 | |
| 79 | /* ...cancel component execution */ |
| 80 | #define xf_component_cancel(c) \ |
| 81 | ({ \ |
| 82 | xf_sched_t *__sched = &XF_CORE_DATA(xf_component_core((c)))->sched; \ |
| 83 | xf_sched_cancel(__sched, &(c)->task); \ |
| 84 | }) |
| 85 | |
| 86 | /******************************************************************************* |
| 87 | * API functions |
| 88 | ******************************************************************************/ |
| 89 | |
| 90 | /* ...component factory */ |
| 91 | extern xf_component_t * xf_component_factory(u32 core, xf_id_t id, u32 length); |