Nordic stack and drivers for the mbed BLE API
Dependents: Sensen-classic-v8-IAQ_copy_4
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/libraries/fds/fds.c@639:7f459d371b75, 2017-11-10 (annotated)
- Committer:
- amithy
- Date:
- Fri Nov 10 20:27:44 2017 +0000
- Revision:
- 639:7f459d371b75
- Parent:
- 638:c90ae1400bf2
t
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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Vincent Coubard |
638:c90ae1400bf2 | 1 | /* |
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638:c90ae1400bf2 | 2 | * Copyright (c) Nordic Semiconductor ASA |
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638:c90ae1400bf2 | 3 | * All rights reserved. |
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638:c90ae1400bf2 | 4 | * |
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638:c90ae1400bf2 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
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638:c90ae1400bf2 | 6 | * are permitted provided that the following conditions are met: |
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638:c90ae1400bf2 | 7 | * |
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638:c90ae1400bf2 | 8 | * 1. Redistributions of source code must retain the above copyright notice, this |
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638:c90ae1400bf2 | 9 | * list of conditions and the following disclaimer. |
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638:c90ae1400bf2 | 10 | * |
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638:c90ae1400bf2 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, this |
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638:c90ae1400bf2 | 12 | * list of conditions and the following disclaimer in the documentation and/or |
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638:c90ae1400bf2 | 13 | * other materials provided with the distribution. |
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638:c90ae1400bf2 | 14 | * |
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638:c90ae1400bf2 | 15 | * 3. Neither the name of Nordic Semiconductor ASA nor the names of other |
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638:c90ae1400bf2 | 16 | * contributors to this software may be used to endorse or promote products |
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638:c90ae1400bf2 | 17 | * derived from this software without specific prior written permission. |
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638:c90ae1400bf2 | 18 | * |
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638:c90ae1400bf2 | 19 | * |
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638:c90ae1400bf2 | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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638:c90ae1400bf2 | 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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638:c90ae1400bf2 | 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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638:c90ae1400bf2 | 23 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
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638:c90ae1400bf2 | 24 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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638:c90ae1400bf2 | 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
Vincent Coubard |
638:c90ae1400bf2 | 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
Vincent Coubard |
638:c90ae1400bf2 | 27 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
Vincent Coubard |
638:c90ae1400bf2 | 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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638:c90ae1400bf2 | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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638:c90ae1400bf2 | 30 | * |
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638:c90ae1400bf2 | 31 | */ |
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638:c90ae1400bf2 | 32 | |
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638:c90ae1400bf2 | 33 | #include "fds.h" |
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638:c90ae1400bf2 | 34 | #include <stdint.h> |
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638:c90ae1400bf2 | 35 | #include <string.h> |
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638:c90ae1400bf2 | 36 | #include <stdbool.h> |
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638:c90ae1400bf2 | 37 | #include "fds_config.h" |
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638:c90ae1400bf2 | 38 | #include "fds_types_internal.h" |
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638:c90ae1400bf2 | 39 | #include "fstorage.h" |
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638:c90ae1400bf2 | 40 | #include "nrf_error.h" |
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638:c90ae1400bf2 | 41 | #include "app_util.h" |
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638:c90ae1400bf2 | 42 | |
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638:c90ae1400bf2 | 43 | |
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638:c90ae1400bf2 | 44 | /** Our fstorage configuration. |
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638:c90ae1400bf2 | 45 | * The other fields will be assigned automatically during compilation. */ |
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638:c90ae1400bf2 | 46 | FS_SECTION_VARS_ADD(fs_config_t fs_config) = { .cb = fs_callback, .num_pages = FDS_MAX_PAGES }; |
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638:c90ae1400bf2 | 47 | |
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638:c90ae1400bf2 | 48 | static uint32_t const fds_page_tag_swap[] = {FDS_PAGE_TAG_WORD_0_SWAP, FDS_PAGE_TAG_WORD_1, |
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638:c90ae1400bf2 | 49 | FDS_PAGE_TAG_WORD_2, FDS_PAGE_TAG_WORD_3}; |
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638:c90ae1400bf2 | 50 | |
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638:c90ae1400bf2 | 51 | static uint32_t const fds_page_tag_valid[] = {FDS_PAGE_TAG_WORD_0_VALID, FDS_PAGE_TAG_WORD_1, |
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638:c90ae1400bf2 | 52 | FDS_PAGE_TAG_WORD_2, FDS_PAGE_TAG_WORD_3}; |
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638:c90ae1400bf2 | 53 | |
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638:c90ae1400bf2 | 54 | static uint32_t const fds_page_tag_gc = FDS_PAGE_TAG_WORD_3_GC; |
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638:c90ae1400bf2 | 55 | |
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638:c90ae1400bf2 | 56 | static fds_tl_t const m_fds_tl_invalid = { .type = FDS_TYPE_ID_INVALID, |
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638:c90ae1400bf2 | 57 | .length_words = 0xFFFF }; |
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638:c90ae1400bf2 | 58 | |
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638:c90ae1400bf2 | 59 | /**@brief Internal status flags. */ |
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638:c90ae1400bf2 | 60 | static uint8_t volatile m_flags; |
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638:c90ae1400bf2 | 61 | |
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638:c90ae1400bf2 | 62 | static uint8_t m_users; |
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638:c90ae1400bf2 | 63 | static fds_cb_t m_cb_table[FDS_MAX_USERS]; |
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638:c90ae1400bf2 | 64 | |
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638:c90ae1400bf2 | 65 | /**@brief The last record ID. Setup page by page_scan() during pages_init(). */ |
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638:c90ae1400bf2 | 66 | static fds_record_id_t m_last_rec_id; |
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638:c90ae1400bf2 | 67 | |
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638:c90ae1400bf2 | 68 | /**@brief The internal queues. */ |
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638:c90ae1400bf2 | 69 | static fds_cmd_queue_t m_cmd_queue; |
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638:c90ae1400bf2 | 70 | static fds_chunk_queue_t m_chunk_queue; |
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638:c90ae1400bf2 | 71 | |
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638:c90ae1400bf2 | 72 | /**@brief Holds the state of pages. Setup by fds_init(). */ |
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638:c90ae1400bf2 | 73 | static fds_page_t m_pages[FDS_MAX_PAGES]; |
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638:c90ae1400bf2 | 74 | static bool m_swap_page_avail = false; |
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638:c90ae1400bf2 | 75 | |
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638:c90ae1400bf2 | 76 | static fds_gc_data_t m_gc; |
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638:c90ae1400bf2 | 77 | static uint16_t m_gc_runs; |
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638:c90ae1400bf2 | 78 | |
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638:c90ae1400bf2 | 79 | static uint8_t volatile m_counter; |
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638:c90ae1400bf2 | 80 | |
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638:c90ae1400bf2 | 81 | |
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638:c90ae1400bf2 | 82 | static void app_notify(ret_code_t result, |
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638:c90ae1400bf2 | 83 | fds_cmd_id_t cmd, |
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638:c90ae1400bf2 | 84 | fds_record_id_t record_id, |
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638:c90ae1400bf2 | 85 | fds_record_key_t record_key) |
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638:c90ae1400bf2 | 86 | { |
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638:c90ae1400bf2 | 87 | for (uint8_t user = 0; user < FDS_MAX_USERS; user++) |
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638:c90ae1400bf2 | 88 | { |
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638:c90ae1400bf2 | 89 | if (m_cb_table[user] != NULL) |
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638:c90ae1400bf2 | 90 | { |
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638:c90ae1400bf2 | 91 | m_cb_table[user](result, cmd, record_id, record_key); |
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638:c90ae1400bf2 | 92 | } |
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638:c90ae1400bf2 | 93 | } |
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638:c90ae1400bf2 | 94 | } |
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638:c90ae1400bf2 | 95 | |
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638:c90ae1400bf2 | 96 | |
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638:c90ae1400bf2 | 97 | static void atomic_counter_inc() |
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638:c90ae1400bf2 | 98 | { |
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638:c90ae1400bf2 | 99 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 100 | m_counter++; |
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638:c90ae1400bf2 | 101 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 102 | } |
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638:c90ae1400bf2 | 103 | |
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638:c90ae1400bf2 | 104 | |
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638:c90ae1400bf2 | 105 | static void atomic_counter_dec() |
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638:c90ae1400bf2 | 106 | { |
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638:c90ae1400bf2 | 107 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 108 | m_counter--; |
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638:c90ae1400bf2 | 109 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 110 | } |
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638:c90ae1400bf2 | 111 | |
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638:c90ae1400bf2 | 112 | |
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638:c90ae1400bf2 | 113 | static bool atomic_counter_is_zero() |
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638:c90ae1400bf2 | 114 | { |
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638:c90ae1400bf2 | 115 | bool ret; |
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638:c90ae1400bf2 | 116 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 117 | ret = (m_counter == 0); |
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638:c90ae1400bf2 | 118 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 119 | return ret; |
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638:c90ae1400bf2 | 120 | } |
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638:c90ae1400bf2 | 121 | |
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638:c90ae1400bf2 | 122 | |
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638:c90ae1400bf2 | 123 | static void flag_set(fds_flags_t flag) |
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638:c90ae1400bf2 | 124 | { |
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638:c90ae1400bf2 | 125 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 126 | m_flags |= flag; |
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638:c90ae1400bf2 | 127 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 128 | } |
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638:c90ae1400bf2 | 129 | |
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638:c90ae1400bf2 | 130 | |
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638:c90ae1400bf2 | 131 | static void flag_clear(fds_flags_t flag) |
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638:c90ae1400bf2 | 132 | { |
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638:c90ae1400bf2 | 133 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 134 | m_flags &= ~(flag); |
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638:c90ae1400bf2 | 135 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 136 | } |
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638:c90ae1400bf2 | 137 | |
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638:c90ae1400bf2 | 138 | |
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638:c90ae1400bf2 | 139 | static bool flag_is_set(fds_flags_t flag) |
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638:c90ae1400bf2 | 140 | { |
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638:c90ae1400bf2 | 141 | bool ret; |
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638:c90ae1400bf2 | 142 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 143 | ret = (m_flags & flag); |
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638:c90ae1400bf2 | 144 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 145 | return ret; |
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638:c90ae1400bf2 | 146 | } |
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638:c90ae1400bf2 | 147 | |
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638:c90ae1400bf2 | 148 | |
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638:c90ae1400bf2 | 149 | /**@brief Function to check if a header has valid information. */ |
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638:c90ae1400bf2 | 150 | static __INLINE bool header_is_valid(fds_header_t const * const p_header) |
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638:c90ae1400bf2 | 151 | { |
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638:c90ae1400bf2 | 152 | return ((p_header->tl.type != FDS_TYPE_ID_INVALID) && |
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638:c90ae1400bf2 | 153 | (p_header->ic.instance != FDS_INSTANCE_ID_INVALID)); |
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638:c90ae1400bf2 | 154 | } |
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638:c90ae1400bf2 | 155 | |
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638:c90ae1400bf2 | 156 | |
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638:c90ae1400bf2 | 157 | static bool address_within_page_bounds(uint32_t const * const p_addr) |
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638:c90ae1400bf2 | 158 | { |
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638:c90ae1400bf2 | 159 | return (p_addr >= fs_config.p_start_addr) && |
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638:c90ae1400bf2 | 160 | (p_addr <= fs_config.p_end_addr) && |
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638:c90ae1400bf2 | 161 | (is_word_aligned(p_addr)); |
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638:c90ae1400bf2 | 162 | } |
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638:c90ae1400bf2 | 163 | |
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638:c90ae1400bf2 | 164 | |
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638:c90ae1400bf2 | 165 | /**@brief Internal function to identify the page type. */ |
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638:c90ae1400bf2 | 166 | static fds_page_type_t page_identify(uint16_t page_number) |
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638:c90ae1400bf2 | 167 | { |
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638:c90ae1400bf2 | 168 | uint32_t const * const p_page_addr = m_pages[page_number].start_addr; |
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638:c90ae1400bf2 | 169 | |
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638:c90ae1400bf2 | 170 | uint32_t const word0 = *(p_page_addr); |
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638:c90ae1400bf2 | 171 | uint32_t const word1 = *(p_page_addr + 1); |
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638:c90ae1400bf2 | 172 | uint32_t const word2 = *(p_page_addr + 2); |
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638:c90ae1400bf2 | 173 | uint32_t const word3 = *(p_page_addr + 3); |
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638:c90ae1400bf2 | 174 | |
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638:c90ae1400bf2 | 175 | if (word1 != FDS_PAGE_TAG_WORD_1) |
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638:c90ae1400bf2 | 176 | { |
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638:c90ae1400bf2 | 177 | return FDS_PAGE_UNDEFINED; |
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638:c90ae1400bf2 | 178 | } |
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638:c90ae1400bf2 | 179 | |
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638:c90ae1400bf2 | 180 | if (word2 != FDS_PAGE_TAG_WORD_2) |
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638:c90ae1400bf2 | 181 | { |
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638:c90ae1400bf2 | 182 | return FDS_PAGE_UNDEFINED; |
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638:c90ae1400bf2 | 183 | } |
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638:c90ae1400bf2 | 184 | |
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638:c90ae1400bf2 | 185 | if (word3 == FDS_PAGE_TAG_WORD_3) |
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638:c90ae1400bf2 | 186 | { |
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638:c90ae1400bf2 | 187 | if (word0 == FDS_PAGE_TAG_WORD_0_SWAP) |
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638:c90ae1400bf2 | 188 | { |
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638:c90ae1400bf2 | 189 | return FDS_PAGE_SWAP; |
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638:c90ae1400bf2 | 190 | } |
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638:c90ae1400bf2 | 191 | |
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638:c90ae1400bf2 | 192 | if (word0 == FDS_PAGE_TAG_WORD_0_VALID) |
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638:c90ae1400bf2 | 193 | { |
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638:c90ae1400bf2 | 194 | return FDS_PAGE_VALID; |
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638:c90ae1400bf2 | 195 | } |
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638:c90ae1400bf2 | 196 | } |
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638:c90ae1400bf2 | 197 | else if (word3 == FDS_PAGE_TAG_WORD_3_GC) |
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638:c90ae1400bf2 | 198 | { |
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638:c90ae1400bf2 | 199 | if (word0 == FDS_PAGE_TAG_WORD_0_SWAP || word0 == FDS_PAGE_TAG_WORD_0_VALID) |
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638:c90ae1400bf2 | 200 | { |
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638:c90ae1400bf2 | 201 | return FDS_PAGE_GC; |
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638:c90ae1400bf2 | 202 | } |
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638:c90ae1400bf2 | 203 | } |
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638:c90ae1400bf2 | 204 | |
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638:c90ae1400bf2 | 205 | return FDS_PAGE_UNDEFINED; |
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638:c90ae1400bf2 | 206 | } |
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638:c90ae1400bf2 | 207 | |
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638:c90ae1400bf2 | 208 | |
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638:c90ae1400bf2 | 209 | static uint16_t page_by_addr(uint32_t const * const p_addr) |
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638:c90ae1400bf2 | 210 | { |
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638:c90ae1400bf2 | 211 | if (p_addr == NULL) |
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638:c90ae1400bf2 | 212 | { |
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638:c90ae1400bf2 | 213 | return 0; |
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638:c90ae1400bf2 | 214 | } |
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638:c90ae1400bf2 | 215 | |
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638:c90ae1400bf2 | 216 | // Compute the BYTES offset from the beginning of the first page. |
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638:c90ae1400bf2 | 217 | uint32_t const byte_offset = (uint32_t)p_addr - (uint32_t)m_pages[0].start_addr; |
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638:c90ae1400bf2 | 218 | |
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638:c90ae1400bf2 | 219 | // See nrf.h. |
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638:c90ae1400bf2 | 220 | #if defined (NRF51) |
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638:c90ae1400bf2 | 221 | return byte_offset >> 10; // Divide by page size (1024). |
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638:c90ae1400bf2 | 222 | #elif defined (NRF52) |
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638:c90ae1400bf2 | 223 | return byte_offset >> 12; // Divide by page size (4096). |
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638:c90ae1400bf2 | 224 | #else |
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638:c90ae1400bf2 | 225 | #error "Device family must be defined. See nrf.h." |
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638:c90ae1400bf2 | 226 | #endif |
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638:c90ae1400bf2 | 227 | } |
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638:c90ae1400bf2 | 228 | |
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638:c90ae1400bf2 | 229 | |
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638:c90ae1400bf2 | 230 | // NOTE: depends on m_pages.write_offset to function. |
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638:c90ae1400bf2 | 231 | static bool page_has_space(uint16_t page, fds_length_t length_words) |
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638:c90ae1400bf2 | 232 | { |
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638:c90ae1400bf2 | 233 | if (page >= FDS_MAX_PAGES) |
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638:c90ae1400bf2 | 234 | { |
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638:c90ae1400bf2 | 235 | return false; |
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638:c90ae1400bf2 | 236 | } |
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638:c90ae1400bf2 | 237 | |
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638:c90ae1400bf2 | 238 | CRITICAL_SECTION_ENTER(); |
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638:c90ae1400bf2 | 239 | length_words += m_pages[page].write_offset; |
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638:c90ae1400bf2 | 240 | length_words += m_pages[page].words_reserved; |
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638:c90ae1400bf2 | 241 | CRITICAL_SECTION_EXIT(); |
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638:c90ae1400bf2 | 242 | |
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638:c90ae1400bf2 | 243 | return (length_words < FS_PAGE_SIZE_WORDS); |
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638:c90ae1400bf2 | 244 | } |
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638:c90ae1400bf2 | 245 | |
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638:c90ae1400bf2 | 246 | |
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638:c90ae1400bf2 | 247 | /**@brief This function scans a page to determine how many words have |
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638:c90ae1400bf2 | 248 | * been written to it. This information is used to set the page |
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638:c90ae1400bf2 | 249 | * write offset during initialization (mount). Additionally, this |
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638:c90ae1400bf2 | 250 | * function will update the last known record ID as it proceeds. |
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638:c90ae1400bf2 | 251 | */ |
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638:c90ae1400bf2 | 252 | static void page_scan(uint16_t page, uint16_t volatile * words_written) |
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638:c90ae1400bf2 | 253 | { |
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638:c90ae1400bf2 | 254 | uint32_t const * p_addr = (m_pages[page].start_addr + FDS_PAGE_TAG_SIZE); |
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638:c90ae1400bf2 | 255 | |
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638:c90ae1400bf2 | 256 | *words_written = FDS_PAGE_TAG_SIZE; |
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638:c90ae1400bf2 | 257 | |
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638:c90ae1400bf2 | 258 | // A corrupt TL might cause problems. |
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638:c90ae1400bf2 | 259 | while ((p_addr < m_pages[page].start_addr + FS_PAGE_SIZE_WORDS) && |
Vincent Coubard |
638:c90ae1400bf2 | 260 | (*p_addr != FDS_ERASED_WORD)) |
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638:c90ae1400bf2 | 261 | { |
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638:c90ae1400bf2 | 262 | fds_header_t const * const p_header = (fds_header_t*)p_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 263 | |
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638:c90ae1400bf2 | 264 | /** Note: DO NOT check for the validity of the header using |
Vincent Coubard |
638:c90ae1400bf2 | 265 | * header_is_valid() here. If an header has an invalid type (0x0000) |
Vincent Coubard |
638:c90ae1400bf2 | 266 | * or a missing instance (0xFFFF) then we WANT to skip it. |
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638:c90ae1400bf2 | 267 | */ |
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638:c90ae1400bf2 | 268 | |
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638:c90ae1400bf2 | 269 | // Update the last known record id. |
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638:c90ae1400bf2 | 270 | if (p_header->id > m_last_rec_id) |
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638:c90ae1400bf2 | 271 | { |
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638:c90ae1400bf2 | 272 | m_last_rec_id = p_header->id; |
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638:c90ae1400bf2 | 273 | } |
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638:c90ae1400bf2 | 274 | |
Vincent Coubard |
638:c90ae1400bf2 | 275 | // Jump to the next record. |
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638:c90ae1400bf2 | 276 | p_addr += (FDS_HEADER_SIZE + p_header->tl.length_words); |
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638:c90ae1400bf2 | 277 | *words_written += (FDS_HEADER_SIZE + p_header->tl.length_words); |
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638:c90ae1400bf2 | 278 | } |
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638:c90ae1400bf2 | 279 | } |
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638:c90ae1400bf2 | 280 | |
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638:c90ae1400bf2 | 281 | |
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638:c90ae1400bf2 | 282 | static bool page_is_empty(uint16_t page) |
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638:c90ae1400bf2 | 283 | { |
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638:c90ae1400bf2 | 284 | uint32_t const * const p_addr = m_pages[page].start_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 285 | |
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638:c90ae1400bf2 | 286 | for (uint16_t i = 0; i < FS_PAGE_SIZE_WORDS; i++) |
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638:c90ae1400bf2 | 287 | { |
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638:c90ae1400bf2 | 288 | if (*(p_addr + i) != FDS_ERASED_WORD) |
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638:c90ae1400bf2 | 289 | { |
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638:c90ae1400bf2 | 290 | return false; |
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638:c90ae1400bf2 | 291 | } |
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638:c90ae1400bf2 | 292 | } |
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638:c90ae1400bf2 | 293 | |
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638:c90ae1400bf2 | 294 | return true; |
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638:c90ae1400bf2 | 295 | } |
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638:c90ae1400bf2 | 296 | |
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638:c90ae1400bf2 | 297 | |
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638:c90ae1400bf2 | 298 | static ret_code_t page_id_from_virtual_id(uint16_t vpage_id, uint16_t * p_page_id) |
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638:c90ae1400bf2 | 299 | { |
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638:c90ae1400bf2 | 300 | for (uint16_t i = 0; i < FDS_MAX_PAGES; i++) |
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638:c90ae1400bf2 | 301 | { |
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638:c90ae1400bf2 | 302 | if (m_pages[i].vpage_id == vpage_id) |
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638:c90ae1400bf2 | 303 | { |
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638:c90ae1400bf2 | 304 | *p_page_id = i; |
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638:c90ae1400bf2 | 305 | return NRF_SUCCESS; |
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638:c90ae1400bf2 | 306 | } |
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638:c90ae1400bf2 | 307 | } |
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638:c90ae1400bf2 | 308 | |
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638:c90ae1400bf2 | 309 | return NRF_ERROR_NOT_FOUND; |
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638:c90ae1400bf2 | 310 | } |
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638:c90ae1400bf2 | 311 | |
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638:c90ae1400bf2 | 312 | |
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638:c90ae1400bf2 | 313 | static ret_code_t page_from_virtual_id(uint16_t vpage_id, fds_page_t ** p_page) |
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638:c90ae1400bf2 | 314 | { |
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638:c90ae1400bf2 | 315 | for (uint16_t i = 0; i < FDS_MAX_PAGES; i++) |
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638:c90ae1400bf2 | 316 | { |
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638:c90ae1400bf2 | 317 | if (m_pages[i].vpage_id == vpage_id) |
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638:c90ae1400bf2 | 318 | { |
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638:c90ae1400bf2 | 319 | *p_page = &m_pages[i]; |
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638:c90ae1400bf2 | 320 | return NRF_SUCCESS; |
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638:c90ae1400bf2 | 321 | } |
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638:c90ae1400bf2 | 322 | } |
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638:c90ae1400bf2 | 323 | |
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638:c90ae1400bf2 | 324 | return NRF_ERROR_NOT_FOUND; |
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638:c90ae1400bf2 | 325 | } |
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638:c90ae1400bf2 | 326 | |
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638:c90ae1400bf2 | 327 | |
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638:c90ae1400bf2 | 328 | static uint32_t record_id_new() |
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638:c90ae1400bf2 | 329 | { |
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638:c90ae1400bf2 | 330 | return ++m_last_rec_id; |
Vincent Coubard |
638:c90ae1400bf2 | 331 | } |
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638:c90ae1400bf2 | 332 | |
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638:c90ae1400bf2 | 333 | |
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638:c90ae1400bf2 | 334 | /**@brief Tags a page as swap, i.e., reserved for GC. */ |
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638:c90ae1400bf2 | 335 | static ret_code_t page_tag_write_swap(uint16_t page) |
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638:c90ae1400bf2 | 336 | { |
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638:c90ae1400bf2 | 337 | return fs_store(&fs_config, |
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638:c90ae1400bf2 | 338 | m_pages[page].start_addr, |
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638:c90ae1400bf2 | 339 | (uint32_t const *)&fds_page_tag_swap, |
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638:c90ae1400bf2 | 340 | FDS_PAGE_TAG_SIZE); |
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638:c90ae1400bf2 | 341 | } |
Vincent Coubard |
638:c90ae1400bf2 | 342 | |
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638:c90ae1400bf2 | 343 | |
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638:c90ae1400bf2 | 344 | /**@brief Tags a page as valid, i.e, ready for storage. */ |
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638:c90ae1400bf2 | 345 | static ret_code_t page_tag_write_valid(uint16_t page) |
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638:c90ae1400bf2 | 346 | { |
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638:c90ae1400bf2 | 347 | return fs_store(&fs_config, |
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638:c90ae1400bf2 | 348 | m_pages[page].start_addr, |
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638:c90ae1400bf2 | 349 | (uint32_t const *)&fds_page_tag_valid, |
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638:c90ae1400bf2 | 350 | FDS_PAGE_TAG_SIZE); |
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638:c90ae1400bf2 | 351 | } |
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638:c90ae1400bf2 | 352 | |
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638:c90ae1400bf2 | 353 | |
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638:c90ae1400bf2 | 354 | /**@brief Tags a valid page as being garbage collected. */ |
Vincent Coubard |
638:c90ae1400bf2 | 355 | static ret_code_t page_tag_write_gc(uint16_t page) |
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638:c90ae1400bf2 | 356 | { |
Vincent Coubard |
638:c90ae1400bf2 | 357 | return fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 358 | m_pages[page].start_addr + 3, |
Vincent Coubard |
638:c90ae1400bf2 | 359 | (uint32_t const *)&fds_page_tag_gc, |
Vincent Coubard |
638:c90ae1400bf2 | 360 | 1 /*Words*/); |
Vincent Coubard |
638:c90ae1400bf2 | 361 | } |
Vincent Coubard |
638:c90ae1400bf2 | 362 | |
Vincent Coubard |
638:c90ae1400bf2 | 363 | |
Vincent Coubard |
638:c90ae1400bf2 | 364 | /**@brief Given a page and a record, finds the next valid record. */ |
Vincent Coubard |
638:c90ae1400bf2 | 365 | static ret_code_t scan_next_valid(uint16_t page, uint32_t const ** p_record) |
Vincent Coubard |
638:c90ae1400bf2 | 366 | { |
Vincent Coubard |
638:c90ae1400bf2 | 367 | uint32_t const * p_next_rec = (*p_record); |
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638:c90ae1400bf2 | 368 | |
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638:c90ae1400bf2 | 369 | if (p_next_rec == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 370 | { |
Vincent Coubard |
638:c90ae1400bf2 | 371 | // This if the first invocation on this page, start from the beginning. |
Vincent Coubard |
638:c90ae1400bf2 | 372 | p_next_rec = m_pages[page].start_addr + FDS_PAGE_TAG_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 373 | } |
Vincent Coubard |
638:c90ae1400bf2 | 374 | else |
Vincent Coubard |
638:c90ae1400bf2 | 375 | { |
Vincent Coubard |
638:c90ae1400bf2 | 376 | // Jump to the next record. |
Vincent Coubard |
638:c90ae1400bf2 | 377 | p_next_rec += (FDS_HEADER_SIZE + ((fds_header_t*)(*p_record))->tl.length_words); |
Vincent Coubard |
638:c90ae1400bf2 | 378 | } |
Vincent Coubard |
638:c90ae1400bf2 | 379 | |
Vincent Coubard |
638:c90ae1400bf2 | 380 | // Scan until we find a valid record or until the end of the page. |
Vincent Coubard |
638:c90ae1400bf2 | 381 | |
Vincent Coubard |
638:c90ae1400bf2 | 382 | /** README: We might seek until the write_offset is reached, but it might not |
Vincent Coubard |
638:c90ae1400bf2 | 383 | * known at this point. */ |
Vincent Coubard |
638:c90ae1400bf2 | 384 | while ((p_next_rec < (m_pages[page].start_addr + FS_PAGE_SIZE_WORDS)) && |
Vincent Coubard |
638:c90ae1400bf2 | 385 | (*p_next_rec != FDS_ERASED_WORD)) // Did we jump to an erased word? |
Vincent Coubard |
638:c90ae1400bf2 | 386 | { |
Vincent Coubard |
638:c90ae1400bf2 | 387 | fds_header_t const * const p_header = (fds_header_t*)p_next_rec; |
Vincent Coubard |
638:c90ae1400bf2 | 388 | |
Vincent Coubard |
638:c90ae1400bf2 | 389 | if (header_is_valid(p_header)) |
Vincent Coubard |
638:c90ae1400bf2 | 390 | { |
Vincent Coubard |
638:c90ae1400bf2 | 391 | // Bingo! |
Vincent Coubard |
638:c90ae1400bf2 | 392 | *p_record = p_next_rec; |
Vincent Coubard |
638:c90ae1400bf2 | 393 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 394 | } |
Vincent Coubard |
638:c90ae1400bf2 | 395 | else |
Vincent Coubard |
638:c90ae1400bf2 | 396 | { |
Vincent Coubard |
638:c90ae1400bf2 | 397 | // The item is not valid, jump to the next. |
Vincent Coubard |
638:c90ae1400bf2 | 398 | p_next_rec += (FDS_HEADER_SIZE + (p_header->tl.length_words)); |
Vincent Coubard |
638:c90ae1400bf2 | 399 | } |
Vincent Coubard |
638:c90ae1400bf2 | 400 | } |
Vincent Coubard |
638:c90ae1400bf2 | 401 | |
Vincent Coubard |
638:c90ae1400bf2 | 402 | return NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 403 | } |
Vincent Coubard |
638:c90ae1400bf2 | 404 | |
Vincent Coubard |
638:c90ae1400bf2 | 405 | |
Vincent Coubard |
638:c90ae1400bf2 | 406 | static ret_code_t seek_record(fds_record_desc_t * const p_desc) |
Vincent Coubard |
638:c90ae1400bf2 | 407 | { |
Vincent Coubard |
638:c90ae1400bf2 | 408 | uint32_t const * p_record; |
Vincent Coubard |
638:c90ae1400bf2 | 409 | uint16_t page; |
Vincent Coubard |
638:c90ae1400bf2 | 410 | bool seek_all_pages = false; |
Vincent Coubard |
638:c90ae1400bf2 | 411 | |
Vincent Coubard |
638:c90ae1400bf2 | 412 | if ((p_desc->ptr_magic == FDS_MAGIC_HWORD) && |
Vincent Coubard |
638:c90ae1400bf2 | 413 | (p_desc->gc_magic == m_gc_runs)) |
Vincent Coubard |
638:c90ae1400bf2 | 414 | { |
Vincent Coubard |
638:c90ae1400bf2 | 415 | // No need to seek the file. |
Vincent Coubard |
638:c90ae1400bf2 | 416 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 417 | } |
Vincent Coubard |
638:c90ae1400bf2 | 418 | |
Vincent Coubard |
638:c90ae1400bf2 | 419 | /** The pointer in the descriptor is not initialized, or GC |
Vincent Coubard |
638:c90ae1400bf2 | 420 | * has been run since the last time it was retrieved. |
Vincent Coubard |
638:c90ae1400bf2 | 421 | * We must seek the record again. */ |
Vincent Coubard |
638:c90ae1400bf2 | 422 | |
Vincent Coubard |
638:c90ae1400bf2 | 423 | // Obtain the physical page ID. |
Vincent Coubard |
638:c90ae1400bf2 | 424 | if (page_id_from_virtual_id(p_desc->vpage_id, &page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 425 | { |
Vincent Coubard |
638:c90ae1400bf2 | 426 | page = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 427 | seek_all_pages = true; |
Vincent Coubard |
638:c90ae1400bf2 | 428 | } |
Vincent Coubard |
638:c90ae1400bf2 | 429 | |
Vincent Coubard |
638:c90ae1400bf2 | 430 | do { |
Vincent Coubard |
638:c90ae1400bf2 | 431 | // Let's find the address from where we should start seeking the record. |
Vincent Coubard |
638:c90ae1400bf2 | 432 | p_record = m_pages[page].start_addr + FDS_PAGE_TAG_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 433 | |
Vincent Coubard |
638:c90ae1400bf2 | 434 | /** Seek for a record with matching ID. |
Vincent Coubard |
638:c90ae1400bf2 | 435 | * We might get away with seeking to the page write offset, if it is known. */ |
Vincent Coubard |
638:c90ae1400bf2 | 436 | |
Vincent Coubard |
638:c90ae1400bf2 | 437 | while ((p_record < (m_pages[page].start_addr + FS_PAGE_SIZE_WORDS)) && |
Vincent Coubard |
638:c90ae1400bf2 | 438 | (*p_record != FDS_ERASED_WORD)) |
Vincent Coubard |
638:c90ae1400bf2 | 439 | { |
Vincent Coubard |
638:c90ae1400bf2 | 440 | fds_header_t const * const p_header = (fds_header_t*)p_record; |
Vincent Coubard |
638:c90ae1400bf2 | 441 | |
Vincent Coubard |
638:c90ae1400bf2 | 442 | if ((p_header->id != p_desc->record_id) || |
Vincent Coubard |
638:c90ae1400bf2 | 443 | (!header_is_valid(p_header))) |
Vincent Coubard |
638:c90ae1400bf2 | 444 | { |
Vincent Coubard |
638:c90ae1400bf2 | 445 | // ID doesnt't match or the record has been cleared. Jump to the next record. |
Vincent Coubard |
638:c90ae1400bf2 | 446 | p_record += FDS_HEADER_SIZE + p_header->tl.length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 447 | } |
Vincent Coubard |
638:c90ae1400bf2 | 448 | else |
Vincent Coubard |
638:c90ae1400bf2 | 449 | { |
Vincent Coubard |
638:c90ae1400bf2 | 450 | // Update the pointer in the descriptor. |
Vincent Coubard |
638:c90ae1400bf2 | 451 | p_desc->p_rec = p_record; |
Vincent Coubard |
638:c90ae1400bf2 | 452 | p_desc->ptr_magic = FDS_MAGIC_HWORD; |
Vincent Coubard |
638:c90ae1400bf2 | 453 | p_desc->gc_magic = m_gc_runs; |
Vincent Coubard |
638:c90ae1400bf2 | 454 | |
Vincent Coubard |
638:c90ae1400bf2 | 455 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 456 | } |
Vincent Coubard |
638:c90ae1400bf2 | 457 | } |
Vincent Coubard |
638:c90ae1400bf2 | 458 | } while (seek_all_pages ? page++ < FDS_MAX_PAGES : 0); |
Vincent Coubard |
638:c90ae1400bf2 | 459 | |
Vincent Coubard |
638:c90ae1400bf2 | 460 | return NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 461 | } |
Vincent Coubard |
638:c90ae1400bf2 | 462 | |
Vincent Coubard |
638:c90ae1400bf2 | 463 | |
Vincent Coubard |
638:c90ae1400bf2 | 464 | static ret_code_t find_record(fds_type_id_t const * const p_type, |
Vincent Coubard |
638:c90ae1400bf2 | 465 | fds_instance_id_t const * const p_inst, |
Vincent Coubard |
638:c90ae1400bf2 | 466 | fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 467 | fds_find_token_t * const p_token) |
Vincent Coubard |
638:c90ae1400bf2 | 468 | { |
Vincent Coubard |
638:c90ae1400bf2 | 469 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 470 | { |
Vincent Coubard |
638:c90ae1400bf2 | 471 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 472 | } |
Vincent Coubard |
638:c90ae1400bf2 | 473 | |
Vincent Coubard |
638:c90ae1400bf2 | 474 | // Here we distinguish between the first invocation and the and the others. |
Vincent Coubard |
638:c90ae1400bf2 | 475 | if ((p_token->magic != FDS_MAGIC_WORD) || |
Vincent Coubard |
638:c90ae1400bf2 | 476 | !address_within_page_bounds(p_token->p_addr)) // Is the address is really okay? |
Vincent Coubard |
638:c90ae1400bf2 | 477 | { |
Vincent Coubard |
638:c90ae1400bf2 | 478 | // Initialize the token. |
Vincent Coubard |
638:c90ae1400bf2 | 479 | p_token->magic = FDS_MAGIC_WORD; |
Vincent Coubard |
638:c90ae1400bf2 | 480 | p_token->vpage_id = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 481 | p_token->p_addr = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 482 | } |
Vincent Coubard |
638:c90ae1400bf2 | 483 | else |
Vincent Coubard |
638:c90ae1400bf2 | 484 | { |
Vincent Coubard |
638:c90ae1400bf2 | 485 | // Look past the last record address. |
Vincent Coubard |
638:c90ae1400bf2 | 486 | p_token->p_addr += (FDS_HEADER_SIZE + ((fds_header_t*)p_token->p_addr)->tl.length_words); |
Vincent Coubard |
638:c90ae1400bf2 | 487 | } |
Vincent Coubard |
638:c90ae1400bf2 | 488 | |
Vincent Coubard |
638:c90ae1400bf2 | 489 | // Begin (or resume) searching for a record. |
Vincent Coubard |
638:c90ae1400bf2 | 490 | for (; p_token->vpage_id < FDS_MAX_PAGES; p_token->vpage_id++) |
Vincent Coubard |
638:c90ae1400bf2 | 491 | { |
Vincent Coubard |
638:c90ae1400bf2 | 492 | uint16_t page = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 493 | |
Vincent Coubard |
638:c90ae1400bf2 | 494 | // Obtain the physical page ID. |
Vincent Coubard |
638:c90ae1400bf2 | 495 | page_id_from_virtual_id(p_token->vpage_id, &page); |
Vincent Coubard |
638:c90ae1400bf2 | 496 | |
Vincent Coubard |
638:c90ae1400bf2 | 497 | if (m_pages[page].page_type != FDS_PAGE_VALID) |
Vincent Coubard |
638:c90ae1400bf2 | 498 | { |
Vincent Coubard |
638:c90ae1400bf2 | 499 | // Skip this page. |
Vincent Coubard |
638:c90ae1400bf2 | 500 | continue; |
Vincent Coubard |
638:c90ae1400bf2 | 501 | } |
Vincent Coubard |
638:c90ae1400bf2 | 502 | |
Vincent Coubard |
638:c90ae1400bf2 | 503 | if (p_token->p_addr == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 504 | { |
Vincent Coubard |
638:c90ae1400bf2 | 505 | // If it's the first time the function is run, initialize the pointer. |
Vincent Coubard |
638:c90ae1400bf2 | 506 | p_token->p_addr = m_pages[page].start_addr + FDS_PAGE_TAG_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 507 | } |
Vincent Coubard |
638:c90ae1400bf2 | 508 | |
Vincent Coubard |
638:c90ae1400bf2 | 509 | // Seek a valid record on this page, starting from the address stored in the token. |
Vincent Coubard |
638:c90ae1400bf2 | 510 | while ((p_token->p_addr < (m_pages[page].start_addr + FS_PAGE_SIZE_WORDS)) && |
Vincent Coubard |
638:c90ae1400bf2 | 511 | (*p_token->p_addr != FDS_ERASED_WORD)) // Did we jump to an erased word? |
Vincent Coubard |
638:c90ae1400bf2 | 512 | { |
Vincent Coubard |
638:c90ae1400bf2 | 513 | fds_header_t const * const p_header = (fds_header_t*)p_token->p_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 514 | |
Vincent Coubard |
638:c90ae1400bf2 | 515 | if (header_is_valid(p_header)) |
Vincent Coubard |
638:c90ae1400bf2 | 516 | { |
Vincent Coubard |
638:c90ae1400bf2 | 517 | // A valid record was found, check its header for a match. |
Vincent Coubard |
638:c90ae1400bf2 | 518 | bool item_match = false; |
Vincent Coubard |
638:c90ae1400bf2 | 519 | |
Vincent Coubard |
638:c90ae1400bf2 | 520 | if (p_type != NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 521 | { |
Vincent Coubard |
638:c90ae1400bf2 | 522 | if (p_header->tl.type == *p_type) |
Vincent Coubard |
638:c90ae1400bf2 | 523 | { |
Vincent Coubard |
638:c90ae1400bf2 | 524 | item_match = true; |
Vincent Coubard |
638:c90ae1400bf2 | 525 | } |
Vincent Coubard |
638:c90ae1400bf2 | 526 | } |
Vincent Coubard |
638:c90ae1400bf2 | 527 | |
Vincent Coubard |
638:c90ae1400bf2 | 528 | if (p_inst != NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 529 | { |
Vincent Coubard |
638:c90ae1400bf2 | 530 | if (p_header->ic.instance == *p_inst) |
Vincent Coubard |
638:c90ae1400bf2 | 531 | { |
Vincent Coubard |
638:c90ae1400bf2 | 532 | item_match = (p_type == NULL) ? true : item_match && true; |
Vincent Coubard |
638:c90ae1400bf2 | 533 | } |
Vincent Coubard |
638:c90ae1400bf2 | 534 | else |
Vincent Coubard |
638:c90ae1400bf2 | 535 | { |
Vincent Coubard |
638:c90ae1400bf2 | 536 | item_match = false; |
Vincent Coubard |
638:c90ae1400bf2 | 537 | } |
Vincent Coubard |
638:c90ae1400bf2 | 538 | } |
Vincent Coubard |
638:c90ae1400bf2 | 539 | |
Vincent Coubard |
638:c90ae1400bf2 | 540 | if (item_match) |
Vincent Coubard |
638:c90ae1400bf2 | 541 | { |
Vincent Coubard |
638:c90ae1400bf2 | 542 | // We found the record! Update the descriptor. |
Vincent Coubard |
638:c90ae1400bf2 | 543 | p_desc->vpage_id = m_pages[page].vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 544 | p_desc->record_id = p_header->id; |
Vincent Coubard |
638:c90ae1400bf2 | 545 | |
Vincent Coubard |
638:c90ae1400bf2 | 546 | p_desc->p_rec = p_token->p_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 547 | p_desc->ptr_magic = FDS_MAGIC_HWORD; |
Vincent Coubard |
638:c90ae1400bf2 | 548 | p_desc->gc_magic = m_gc_runs; |
Vincent Coubard |
638:c90ae1400bf2 | 549 | |
Vincent Coubard |
638:c90ae1400bf2 | 550 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 551 | } |
Vincent Coubard |
638:c90ae1400bf2 | 552 | } |
Vincent Coubard |
638:c90ae1400bf2 | 553 | // Jump to the next record. |
Vincent Coubard |
638:c90ae1400bf2 | 554 | p_token->p_addr += (FDS_HEADER_SIZE + (p_header->tl.length_words)); |
Vincent Coubard |
638:c90ae1400bf2 | 555 | } |
Vincent Coubard |
638:c90ae1400bf2 | 556 | |
Vincent Coubard |
638:c90ae1400bf2 | 557 | /** We have seeked an entire page. Set the address in the token to NULL |
Vincent Coubard |
638:c90ae1400bf2 | 558 | * so that it will be set again on the next iteration. */ |
Vincent Coubard |
638:c90ae1400bf2 | 559 | p_token->p_addr = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 560 | } |
Vincent Coubard |
638:c90ae1400bf2 | 561 | |
Vincent Coubard |
638:c90ae1400bf2 | 562 | /** If we couldn't find the record, zero the token structure |
Vincent Coubard |
638:c90ae1400bf2 | 563 | * so that it can be reused. */ |
Vincent Coubard |
638:c90ae1400bf2 | 564 | p_token->magic = 0x00; |
Vincent Coubard |
638:c90ae1400bf2 | 565 | |
Vincent Coubard |
638:c90ae1400bf2 | 566 | return NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 567 | } |
Vincent Coubard |
638:c90ae1400bf2 | 568 | |
Vincent Coubard |
638:c90ae1400bf2 | 569 | |
Vincent Coubard |
638:c90ae1400bf2 | 570 | static void gc_init() |
Vincent Coubard |
638:c90ae1400bf2 | 571 | { |
Vincent Coubard |
638:c90ae1400bf2 | 572 | // Set which pages to GC. |
Vincent Coubard |
638:c90ae1400bf2 | 573 | for (uint16_t i = 0; i < FDS_MAX_PAGES; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 574 | { |
Vincent Coubard |
638:c90ae1400bf2 | 575 | m_gc.do_gc_page[i] = (m_pages[i].page_type == FDS_PAGE_VALID); |
Vincent Coubard |
638:c90ae1400bf2 | 576 | } |
Vincent Coubard |
638:c90ae1400bf2 | 577 | } |
Vincent Coubard |
638:c90ae1400bf2 | 578 | |
Vincent Coubard |
638:c90ae1400bf2 | 579 | |
Vincent Coubard |
638:c90ae1400bf2 | 580 | static void gc_reset() |
Vincent Coubard |
638:c90ae1400bf2 | 581 | { |
Vincent Coubard |
638:c90ae1400bf2 | 582 | m_gc.state = BEGIN; |
Vincent Coubard |
638:c90ae1400bf2 | 583 | m_gc.cur_page = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 584 | m_gc.p_scan_addr = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 585 | } |
Vincent Coubard |
638:c90ae1400bf2 | 586 | |
Vincent Coubard |
638:c90ae1400bf2 | 587 | |
Vincent Coubard |
638:c90ae1400bf2 | 588 | static void gc_set_state(fds_gc_state_t new_state) |
Vincent Coubard |
638:c90ae1400bf2 | 589 | { |
Vincent Coubard |
638:c90ae1400bf2 | 590 | m_gc.state = new_state; |
Vincent Coubard |
638:c90ae1400bf2 | 591 | } |
Vincent Coubard |
638:c90ae1400bf2 | 592 | |
Vincent Coubard |
638:c90ae1400bf2 | 593 | |
Vincent Coubard |
638:c90ae1400bf2 | 594 | static ret_code_t gc_get_next_page(uint16_t * const next_page) |
Vincent Coubard |
638:c90ae1400bf2 | 595 | { |
Vincent Coubard |
638:c90ae1400bf2 | 596 | for (uint16_t i = 0; i < FDS_MAX_PAGES; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 597 | { |
Vincent Coubard |
638:c90ae1400bf2 | 598 | if (m_gc.do_gc_page[i]) |
Vincent Coubard |
638:c90ae1400bf2 | 599 | { |
Vincent Coubard |
638:c90ae1400bf2 | 600 | uint16_t records_open; |
Vincent Coubard |
638:c90ae1400bf2 | 601 | |
Vincent Coubard |
638:c90ae1400bf2 | 602 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 603 | records_open = m_pages[i].records_open; |
Vincent Coubard |
638:c90ae1400bf2 | 604 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 605 | |
Vincent Coubard |
638:c90ae1400bf2 | 606 | // Do not attempt to GC this page anymore. |
Vincent Coubard |
638:c90ae1400bf2 | 607 | m_gc.do_gc_page[i] = false; |
Vincent Coubard |
638:c90ae1400bf2 | 608 | |
Vincent Coubard |
638:c90ae1400bf2 | 609 | // Only GC pages with no open records. |
Vincent Coubard |
638:c90ae1400bf2 | 610 | if (records_open == 0) |
Vincent Coubard |
638:c90ae1400bf2 | 611 | { |
Vincent Coubard |
638:c90ae1400bf2 | 612 | *next_page = i; |
Vincent Coubard |
638:c90ae1400bf2 | 613 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 614 | } |
Vincent Coubard |
638:c90ae1400bf2 | 615 | } |
Vincent Coubard |
638:c90ae1400bf2 | 616 | } |
Vincent Coubard |
638:c90ae1400bf2 | 617 | |
Vincent Coubard |
638:c90ae1400bf2 | 618 | return NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 619 | } |
Vincent Coubard |
638:c90ae1400bf2 | 620 | |
Vincent Coubard |
638:c90ae1400bf2 | 621 | |
Vincent Coubard |
638:c90ae1400bf2 | 622 | static ret_code_t gc_page() |
Vincent Coubard |
638:c90ae1400bf2 | 623 | { |
Vincent Coubard |
638:c90ae1400bf2 | 624 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 625 | |
Vincent Coubard |
638:c90ae1400bf2 | 626 | ret = gc_get_next_page(&m_gc.cur_page); |
Vincent Coubard |
638:c90ae1400bf2 | 627 | |
Vincent Coubard |
638:c90ae1400bf2 | 628 | // No pages left to GC. GC has terminated. Reset GC data. |
Vincent Coubard |
638:c90ae1400bf2 | 629 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 630 | { |
Vincent Coubard |
638:c90ae1400bf2 | 631 | gc_reset(); |
Vincent Coubard |
638:c90ae1400bf2 | 632 | |
Vincent Coubard |
638:c90ae1400bf2 | 633 | return COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 634 | } |
Vincent Coubard |
638:c90ae1400bf2 | 635 | |
Vincent Coubard |
638:c90ae1400bf2 | 636 | // Prepare to GC the page. |
Vincent Coubard |
638:c90ae1400bf2 | 637 | gc_set_state(GC_PAGE); |
Vincent Coubard |
638:c90ae1400bf2 | 638 | |
Vincent Coubard |
638:c90ae1400bf2 | 639 | // Flag the page as being garbage collected. |
Vincent Coubard |
638:c90ae1400bf2 | 640 | ret = page_tag_write_gc(m_gc.cur_page); |
Vincent Coubard |
638:c90ae1400bf2 | 641 | |
Vincent Coubard |
638:c90ae1400bf2 | 642 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 643 | { |
Vincent Coubard |
638:c90ae1400bf2 | 644 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 645 | } |
Vincent Coubard |
638:c90ae1400bf2 | 646 | |
Vincent Coubard |
638:c90ae1400bf2 | 647 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 648 | } |
Vincent Coubard |
638:c90ae1400bf2 | 649 | |
Vincent Coubard |
638:c90ae1400bf2 | 650 | |
Vincent Coubard |
638:c90ae1400bf2 | 651 | static ret_code_t gc_copy_record() |
Vincent Coubard |
638:c90ae1400bf2 | 652 | { |
Vincent Coubard |
638:c90ae1400bf2 | 653 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 654 | |
Vincent Coubard |
638:c90ae1400bf2 | 655 | // We have found a record to copy. |
Vincent Coubard |
638:c90ae1400bf2 | 656 | fds_record_t const * const p_record = (fds_record_t*)m_gc.p_scan_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 657 | |
Vincent Coubard |
638:c90ae1400bf2 | 658 | gc_set_state(COPY_RECORD); |
Vincent Coubard |
638:c90ae1400bf2 | 659 | |
Vincent Coubard |
638:c90ae1400bf2 | 660 | // Copy the item to swap. |
Vincent Coubard |
638:c90ae1400bf2 | 661 | fs_ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 662 | m_pages[m_gc.swap_page].start_addr + m_pages[m_gc.swap_page].write_offset, |
Vincent Coubard |
638:c90ae1400bf2 | 663 | (uint32_t*)p_record, |
Vincent Coubard |
638:c90ae1400bf2 | 664 | FDS_HEADER_SIZE + p_record->header.tl.length_words); |
Vincent Coubard |
638:c90ae1400bf2 | 665 | |
Vincent Coubard |
638:c90ae1400bf2 | 666 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 667 | { |
Vincent Coubard |
638:c90ae1400bf2 | 668 | // Oops :( |
Vincent Coubard |
638:c90ae1400bf2 | 669 | // This is an error. Can we recover? |
Vincent Coubard |
638:c90ae1400bf2 | 670 | } |
Vincent Coubard |
638:c90ae1400bf2 | 671 | |
Vincent Coubard |
638:c90ae1400bf2 | 672 | // Remember to update the swap page write offset. |
Vincent Coubard |
638:c90ae1400bf2 | 673 | m_pages[m_gc.swap_page].write_offset += (FDS_HEADER_SIZE + p_record->header.tl.length_words); |
Vincent Coubard |
638:c90ae1400bf2 | 674 | |
Vincent Coubard |
638:c90ae1400bf2 | 675 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 676 | } |
Vincent Coubard |
638:c90ae1400bf2 | 677 | |
Vincent Coubard |
638:c90ae1400bf2 | 678 | |
Vincent Coubard |
638:c90ae1400bf2 | 679 | static ret_code_t gc_ready_swap_page() |
Vincent Coubard |
638:c90ae1400bf2 | 680 | { |
Vincent Coubard |
638:c90ae1400bf2 | 681 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 682 | |
Vincent Coubard |
638:c90ae1400bf2 | 683 | /** A page has been scanned through. All valid records found were copied to swap. |
Vincent Coubard |
638:c90ae1400bf2 | 684 | * The swap page can now be flagged as a valid page. */ |
Vincent Coubard |
638:c90ae1400bf2 | 685 | gc_set_state(READY_SWAP); |
Vincent Coubard |
638:c90ae1400bf2 | 686 | |
Vincent Coubard |
638:c90ae1400bf2 | 687 | fs_ret = page_tag_write_valid(m_gc.swap_page); |
Vincent Coubard |
638:c90ae1400bf2 | 688 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 689 | { |
Vincent Coubard |
638:c90ae1400bf2 | 690 | return fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 691 | } |
Vincent Coubard |
638:c90ae1400bf2 | 692 | |
Vincent Coubard |
638:c90ae1400bf2 | 693 | /** Do not update the page type in the internal page structure (m_pages) |
Vincent Coubard |
638:c90ae1400bf2 | 694 | * right away. (why?) */ |
Vincent Coubard |
638:c90ae1400bf2 | 695 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 696 | } |
Vincent Coubard |
638:c90ae1400bf2 | 697 | |
Vincent Coubard |
638:c90ae1400bf2 | 698 | |
Vincent Coubard |
638:c90ae1400bf2 | 699 | static ret_code_t gc_seek_record() |
Vincent Coubard |
638:c90ae1400bf2 | 700 | { |
Vincent Coubard |
638:c90ae1400bf2 | 701 | // Let's find a valid record which has not been copied yet. |
Vincent Coubard |
638:c90ae1400bf2 | 702 | if (scan_next_valid(m_gc.cur_page, &m_gc.p_scan_addr) == NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 703 | { |
Vincent Coubard |
638:c90ae1400bf2 | 704 | /** The record is guaranteed to fit in the destination page, |
Vincent Coubard |
638:c90ae1400bf2 | 705 | * so we don't need to check its size. */ |
Vincent Coubard |
638:c90ae1400bf2 | 706 | return gc_copy_record(); |
Vincent Coubard |
638:c90ae1400bf2 | 707 | } |
Vincent Coubard |
638:c90ae1400bf2 | 708 | else |
Vincent Coubard |
638:c90ae1400bf2 | 709 | { |
Vincent Coubard |
638:c90ae1400bf2 | 710 | /** No more (uncopied) records left on this page. |
Vincent Coubard |
638:c90ae1400bf2 | 711 | * The swap page can now be marked as a valid page. */ |
Vincent Coubard |
638:c90ae1400bf2 | 712 | return gc_ready_swap_page(); |
Vincent Coubard |
638:c90ae1400bf2 | 713 | } |
Vincent Coubard |
638:c90ae1400bf2 | 714 | } |
Vincent Coubard |
638:c90ae1400bf2 | 715 | |
Vincent Coubard |
638:c90ae1400bf2 | 716 | |
Vincent Coubard |
638:c90ae1400bf2 | 717 | static ret_code_t gc_new_swap_page() |
Vincent Coubard |
638:c90ae1400bf2 | 718 | { |
Vincent Coubard |
638:c90ae1400bf2 | 719 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 720 | uint16_t vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 721 | |
Vincent Coubard |
638:c90ae1400bf2 | 722 | gc_set_state(NEW_SWAP); |
Vincent Coubard |
638:c90ae1400bf2 | 723 | |
Vincent Coubard |
638:c90ae1400bf2 | 724 | // Save the swap page virtual page ID. |
Vincent Coubard |
638:c90ae1400bf2 | 725 | vpage_id = m_pages[m_gc.swap_page].vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 726 | |
Vincent Coubard |
638:c90ae1400bf2 | 727 | /** The swap page has been marked as valid in Flash. We copy the GC'ed page |
Vincent Coubard |
638:c90ae1400bf2 | 728 | * write_offset and virtual page ID. */ |
Vincent Coubard |
638:c90ae1400bf2 | 729 | m_pages[m_gc.swap_page].page_type = FDS_PAGE_VALID; |
Vincent Coubard |
638:c90ae1400bf2 | 730 | m_pages[m_gc.swap_page].vpage_id = m_pages[m_gc.cur_page].vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 731 | m_pages[m_gc.swap_page].words_reserved = m_pages[m_gc.cur_page].words_reserved; |
Vincent Coubard |
638:c90ae1400bf2 | 732 | |
Vincent Coubard |
638:c90ae1400bf2 | 733 | // The new swap page is now the page we just GC. |
Vincent Coubard |
638:c90ae1400bf2 | 734 | m_gc.swap_page = m_gc.cur_page; |
Vincent Coubard |
638:c90ae1400bf2 | 735 | |
Vincent Coubard |
638:c90ae1400bf2 | 736 | // Update the write_offset, words_reserved and vpage_id fields for the new swap page. |
Vincent Coubard |
638:c90ae1400bf2 | 737 | m_pages[m_gc.swap_page].page_type = FDS_PAGE_SWAP; |
Vincent Coubard |
638:c90ae1400bf2 | 738 | m_pages[m_gc.swap_page].vpage_id = vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 739 | m_pages[m_gc.swap_page].write_offset = FDS_PAGE_TAG_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 740 | m_pages[m_gc.swap_page].words_reserved = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 741 | |
Vincent Coubard |
638:c90ae1400bf2 | 742 | /** Finally, erase the new swap page. Remember we still have to flag this |
Vincent Coubard |
638:c90ae1400bf2 | 743 | * new page as swap, but we'll wait the callback for this operation to do so. */ |
Vincent Coubard |
638:c90ae1400bf2 | 744 | fs_ret = fs_erase(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 745 | (uint32_t*)m_pages[m_gc.swap_page].start_addr, |
Vincent Coubard |
638:c90ae1400bf2 | 746 | FS_PAGE_SIZE_WORDS); |
Vincent Coubard |
638:c90ae1400bf2 | 747 | |
Vincent Coubard |
638:c90ae1400bf2 | 748 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 749 | { |
Vincent Coubard |
638:c90ae1400bf2 | 750 | return fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 751 | } |
Vincent Coubard |
638:c90ae1400bf2 | 752 | |
Vincent Coubard |
638:c90ae1400bf2 | 753 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 754 | } |
Vincent Coubard |
638:c90ae1400bf2 | 755 | |
Vincent Coubard |
638:c90ae1400bf2 | 756 | |
Vincent Coubard |
638:c90ae1400bf2 | 757 | static ret_code_t gc_new_swap_page_init() |
Vincent Coubard |
638:c90ae1400bf2 | 758 | { |
Vincent Coubard |
638:c90ae1400bf2 | 759 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 760 | |
Vincent Coubard |
638:c90ae1400bf2 | 761 | gc_set_state(INIT_SWAP); |
Vincent Coubard |
638:c90ae1400bf2 | 762 | |
Vincent Coubard |
638:c90ae1400bf2 | 763 | fs_ret = page_tag_write_swap(m_gc.swap_page); |
Vincent Coubard |
638:c90ae1400bf2 | 764 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 765 | { |
Vincent Coubard |
638:c90ae1400bf2 | 766 | return fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 767 | } |
Vincent Coubard |
638:c90ae1400bf2 | 768 | |
Vincent Coubard |
638:c90ae1400bf2 | 769 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 770 | } |
Vincent Coubard |
638:c90ae1400bf2 | 771 | |
Vincent Coubard |
638:c90ae1400bf2 | 772 | |
Vincent Coubard |
638:c90ae1400bf2 | 773 | static ret_code_t gc_execute(uint32_t result) |
Vincent Coubard |
638:c90ae1400bf2 | 774 | { |
Vincent Coubard |
638:c90ae1400bf2 | 775 | // TODO: Handle resuming GC. |
Vincent Coubard |
638:c90ae1400bf2 | 776 | |
Vincent Coubard |
638:c90ae1400bf2 | 777 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 778 | |
Vincent Coubard |
638:c90ae1400bf2 | 779 | if (result != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 780 | { |
Vincent Coubard |
638:c90ae1400bf2 | 781 | // An operation failed. Report to the application. |
Vincent Coubard |
638:c90ae1400bf2 | 782 | return result; |
Vincent Coubard |
638:c90ae1400bf2 | 783 | } |
Vincent Coubard |
638:c90ae1400bf2 | 784 | |
Vincent Coubard |
638:c90ae1400bf2 | 785 | switch (m_gc.state) |
Vincent Coubard |
638:c90ae1400bf2 | 786 | { |
Vincent Coubard |
638:c90ae1400bf2 | 787 | case BEGIN: |
Vincent Coubard |
638:c90ae1400bf2 | 788 | { |
Vincent Coubard |
638:c90ae1400bf2 | 789 | // Increment the number of times the GC has been run. |
Vincent Coubard |
638:c90ae1400bf2 | 790 | m_gc_runs++; |
Vincent Coubard |
638:c90ae1400bf2 | 791 | // Sets up a list of pages to GC. |
Vincent Coubard |
638:c90ae1400bf2 | 792 | gc_init(); |
Vincent Coubard |
638:c90ae1400bf2 | 793 | // Go ! |
Vincent Coubard |
638:c90ae1400bf2 | 794 | ret = gc_page(); |
Vincent Coubard |
638:c90ae1400bf2 | 795 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 796 | |
Vincent Coubard |
638:c90ae1400bf2 | 797 | case GC_PAGE: |
Vincent Coubard |
638:c90ae1400bf2 | 798 | /** A page has been successfully flagged as being GC. |
Vincent Coubard |
638:c90ae1400bf2 | 799 | * Look for valid records to copy. */ |
Vincent Coubard |
638:c90ae1400bf2 | 800 | ret = gc_seek_record(); |
Vincent Coubard |
638:c90ae1400bf2 | 801 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 802 | |
Vincent Coubard |
638:c90ae1400bf2 | 803 | case COPY_RECORD: |
Vincent Coubard |
638:c90ae1400bf2 | 804 | /** A record has been copied to swap. |
Vincent Coubard |
638:c90ae1400bf2 | 805 | * Look for more records to copy. */ |
Vincent Coubard |
638:c90ae1400bf2 | 806 | ret = gc_seek_record(); |
Vincent Coubard |
638:c90ae1400bf2 | 807 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 808 | |
Vincent Coubard |
638:c90ae1400bf2 | 809 | case READY_SWAP: |
Vincent Coubard |
638:c90ae1400bf2 | 810 | /** The swap page has been flagged as 'valid' (ready). |
Vincent Coubard |
638:c90ae1400bf2 | 811 | * Let's prepare a new swap page. */ |
Vincent Coubard |
638:c90ae1400bf2 | 812 | ret = gc_new_swap_page(); |
Vincent Coubard |
638:c90ae1400bf2 | 813 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 814 | |
Vincent Coubard |
638:c90ae1400bf2 | 815 | case NEW_SWAP: |
Vincent Coubard |
638:c90ae1400bf2 | 816 | // A new swap page has been prepared. Let's flag it as swap. |
Vincent Coubard |
638:c90ae1400bf2 | 817 | ret = gc_new_swap_page_init(); |
Vincent Coubard |
638:c90ae1400bf2 | 818 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 819 | |
Vincent Coubard |
638:c90ae1400bf2 | 820 | case INIT_SWAP: |
Vincent Coubard |
638:c90ae1400bf2 | 821 | /** The swap was flagged as swap in flash. Let's compress another page. |
Vincent Coubard |
638:c90ae1400bf2 | 822 | * Be sure to update the address where to scan from. */ |
Vincent Coubard |
638:c90ae1400bf2 | 823 | m_gc.p_scan_addr = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 824 | ret = gc_page(); |
Vincent Coubard |
638:c90ae1400bf2 | 825 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 826 | |
Vincent Coubard |
638:c90ae1400bf2 | 827 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 828 | // Should really not happen. |
Vincent Coubard |
638:c90ae1400bf2 | 829 | ret = NRF_ERROR_INTERNAL; |
Vincent Coubard |
638:c90ae1400bf2 | 830 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 831 | } |
Vincent Coubard |
638:c90ae1400bf2 | 832 | |
Vincent Coubard |
638:c90ae1400bf2 | 833 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 834 | } |
Vincent Coubard |
638:c90ae1400bf2 | 835 | |
Vincent Coubard |
638:c90ae1400bf2 | 836 | |
Vincent Coubard |
638:c90ae1400bf2 | 837 | /**@brief Function for initializing the command queue. */ |
Vincent Coubard |
638:c90ae1400bf2 | 838 | static void queues_init(void) |
Vincent Coubard |
638:c90ae1400bf2 | 839 | { |
Vincent Coubard |
638:c90ae1400bf2 | 840 | memset(&m_cmd_queue, 0, sizeof(fds_cmd_queue_t)); |
Vincent Coubard |
638:c90ae1400bf2 | 841 | memset(&m_chunk_queue, 0, sizeof(fds_chunk_queue_t)); |
Vincent Coubard |
638:c90ae1400bf2 | 842 | } |
Vincent Coubard |
638:c90ae1400bf2 | 843 | |
Vincent Coubard |
638:c90ae1400bf2 | 844 | |
Vincent Coubard |
638:c90ae1400bf2 | 845 | void cmd_queue_next(fds_cmd_t ** pp_cmd) |
Vincent Coubard |
638:c90ae1400bf2 | 846 | { |
Vincent Coubard |
638:c90ae1400bf2 | 847 | if (*pp_cmd != &m_cmd_queue.cmd[FDS_CMD_QUEUE_SIZE - 1]) |
Vincent Coubard |
638:c90ae1400bf2 | 848 | { |
Vincent Coubard |
638:c90ae1400bf2 | 849 | (*pp_cmd)++; |
Vincent Coubard |
638:c90ae1400bf2 | 850 | return; |
Vincent Coubard |
638:c90ae1400bf2 | 851 | } |
Vincent Coubard |
638:c90ae1400bf2 | 852 | |
Vincent Coubard |
638:c90ae1400bf2 | 853 | *pp_cmd = &m_cmd_queue.cmd[0]; |
Vincent Coubard |
638:c90ae1400bf2 | 854 | } |
Vincent Coubard |
638:c90ae1400bf2 | 855 | |
Vincent Coubard |
638:c90ae1400bf2 | 856 | |
Vincent Coubard |
638:c90ae1400bf2 | 857 | void chunk_queue_next(fds_record_chunk_t ** pp_chunk) |
Vincent Coubard |
638:c90ae1400bf2 | 858 | { |
Vincent Coubard |
638:c90ae1400bf2 | 859 | if ((*pp_chunk) != &m_chunk_queue.chunk[FDS_CHUNK_QUEUE_SIZE - 1]) |
Vincent Coubard |
638:c90ae1400bf2 | 860 | { |
Vincent Coubard |
638:c90ae1400bf2 | 861 | (*pp_chunk)++; |
Vincent Coubard |
638:c90ae1400bf2 | 862 | return; |
Vincent Coubard |
638:c90ae1400bf2 | 863 | } |
Vincent Coubard |
638:c90ae1400bf2 | 864 | |
Vincent Coubard |
638:c90ae1400bf2 | 865 | *pp_chunk = &m_chunk_queue.chunk[0]; |
Vincent Coubard |
638:c90ae1400bf2 | 866 | } |
Vincent Coubard |
638:c90ae1400bf2 | 867 | |
Vincent Coubard |
638:c90ae1400bf2 | 868 | |
Vincent Coubard |
638:c90ae1400bf2 | 869 | /**@brief Advances one position in the command queue. Returns true if the queue is not empty. */ |
Vincent Coubard |
638:c90ae1400bf2 | 870 | static bool cmd_queue_advance(void) |
Vincent Coubard |
638:c90ae1400bf2 | 871 | { |
Vincent Coubard |
638:c90ae1400bf2 | 872 | // Reset the current element. |
Vincent Coubard |
638:c90ae1400bf2 | 873 | memset(&m_cmd_queue.cmd[m_cmd_queue.rp], 0, sizeof(fds_cmd_t)); |
Vincent Coubard |
638:c90ae1400bf2 | 874 | |
Vincent Coubard |
638:c90ae1400bf2 | 875 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 876 | if (m_cmd_queue.count != 0) |
Vincent Coubard |
638:c90ae1400bf2 | 877 | { |
Vincent Coubard |
638:c90ae1400bf2 | 878 | // Advance in the queue, wrapping around if necessary. |
Vincent Coubard |
638:c90ae1400bf2 | 879 | m_cmd_queue.rp = (m_cmd_queue.rp + 1) % FDS_CMD_QUEUE_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 880 | m_cmd_queue.count--; |
Vincent Coubard |
638:c90ae1400bf2 | 881 | } |
Vincent Coubard |
638:c90ae1400bf2 | 882 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 883 | |
Vincent Coubard |
638:c90ae1400bf2 | 884 | return m_cmd_queue.count != 0; |
Vincent Coubard |
638:c90ae1400bf2 | 885 | } |
Vincent Coubard |
638:c90ae1400bf2 | 886 | |
Vincent Coubard |
638:c90ae1400bf2 | 887 | |
Vincent Coubard |
638:c90ae1400bf2 | 888 | /**@brief Returns the current chunk, and advances to the next in the queue. */ |
Vincent Coubard |
638:c90ae1400bf2 | 889 | static bool chunk_queue_get_and_advance(fds_record_chunk_t ** pp_chunk) |
Vincent Coubard |
638:c90ae1400bf2 | 890 | { |
Vincent Coubard |
638:c90ae1400bf2 | 891 | bool chunk_popped = false; |
Vincent Coubard |
638:c90ae1400bf2 | 892 | |
Vincent Coubard |
638:c90ae1400bf2 | 893 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 894 | if (m_chunk_queue.count != 0) |
Vincent Coubard |
638:c90ae1400bf2 | 895 | { |
Vincent Coubard |
638:c90ae1400bf2 | 896 | // Point to the current chunk and advance the queue. |
Vincent Coubard |
638:c90ae1400bf2 | 897 | *pp_chunk = &m_chunk_queue.chunk[m_chunk_queue.rp]; |
Vincent Coubard |
638:c90ae1400bf2 | 898 | |
Vincent Coubard |
638:c90ae1400bf2 | 899 | m_chunk_queue.rp = (m_chunk_queue.rp + 1) % FDS_CHUNK_QUEUE_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 900 | m_chunk_queue.count--; |
Vincent Coubard |
638:c90ae1400bf2 | 901 | |
Vincent Coubard |
638:c90ae1400bf2 | 902 | chunk_popped = true; |
Vincent Coubard |
638:c90ae1400bf2 | 903 | } |
Vincent Coubard |
638:c90ae1400bf2 | 904 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 905 | |
Vincent Coubard |
638:c90ae1400bf2 | 906 | return chunk_popped; |
Vincent Coubard |
638:c90ae1400bf2 | 907 | } |
Vincent Coubard |
638:c90ae1400bf2 | 908 | |
Vincent Coubard |
638:c90ae1400bf2 | 909 | |
Vincent Coubard |
638:c90ae1400bf2 | 910 | static bool chunk_queue_skip(uint8_t num_op) |
Vincent Coubard |
638:c90ae1400bf2 | 911 | { |
Vincent Coubard |
638:c90ae1400bf2 | 912 | bool chunk_skipped = false; |
Vincent Coubard |
638:c90ae1400bf2 | 913 | |
Vincent Coubard |
638:c90ae1400bf2 | 914 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 915 | if (num_op <= m_chunk_queue.count) |
Vincent Coubard |
638:c90ae1400bf2 | 916 | { |
Vincent Coubard |
638:c90ae1400bf2 | 917 | m_chunk_queue.count -= num_op; |
Vincent Coubard |
638:c90ae1400bf2 | 918 | chunk_skipped = true; |
Vincent Coubard |
638:c90ae1400bf2 | 919 | } |
Vincent Coubard |
638:c90ae1400bf2 | 920 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 921 | |
Vincent Coubard |
638:c90ae1400bf2 | 922 | return chunk_skipped; |
Vincent Coubard |
638:c90ae1400bf2 | 923 | } |
Vincent Coubard |
638:c90ae1400bf2 | 924 | |
Vincent Coubard |
638:c90ae1400bf2 | 925 | |
Vincent Coubard |
638:c90ae1400bf2 | 926 | /**@brief Reserves resources on both queues. */ |
Vincent Coubard |
638:c90ae1400bf2 | 927 | static ret_code_t queue_reserve(uint8_t num_cmd, |
Vincent Coubard |
638:c90ae1400bf2 | 928 | uint8_t num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 929 | fds_cmd_t ** pp_cmd, |
Vincent Coubard |
638:c90ae1400bf2 | 930 | fds_record_chunk_t ** pp_chunk) |
Vincent Coubard |
638:c90ae1400bf2 | 931 | { |
Vincent Coubard |
638:c90ae1400bf2 | 932 | uint8_t cmd_index; |
Vincent Coubard |
638:c90ae1400bf2 | 933 | uint8_t chunk_index; |
Vincent Coubard |
638:c90ae1400bf2 | 934 | |
Vincent Coubard |
638:c90ae1400bf2 | 935 | // This is really just being safe. |
Vincent Coubard |
638:c90ae1400bf2 | 936 | if (pp_cmd == NULL || ((pp_chunk == NULL) && (num_chunks != 0))) |
Vincent Coubard |
638:c90ae1400bf2 | 937 | { |
Vincent Coubard |
638:c90ae1400bf2 | 938 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 939 | } |
Vincent Coubard |
638:c90ae1400bf2 | 940 | |
Vincent Coubard |
638:c90ae1400bf2 | 941 | if (num_cmd == 0) |
Vincent Coubard |
638:c90ae1400bf2 | 942 | { |
Vincent Coubard |
638:c90ae1400bf2 | 943 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 944 | } |
Vincent Coubard |
638:c90ae1400bf2 | 945 | |
Vincent Coubard |
638:c90ae1400bf2 | 946 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 947 | |
Vincent Coubard |
638:c90ae1400bf2 | 948 | // Ensure there is enough space in the queues. |
Vincent Coubard |
638:c90ae1400bf2 | 949 | if ((m_cmd_queue.count > FDS_CMD_QUEUE_SIZE - num_cmd) || |
Vincent Coubard |
638:c90ae1400bf2 | 950 | (m_chunk_queue.count > FDS_CHUNK_QUEUE_SIZE - num_chunks)) |
Vincent Coubard |
638:c90ae1400bf2 | 951 | { |
Vincent Coubard |
638:c90ae1400bf2 | 952 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 953 | return NRF_ERROR_BUSY; |
Vincent Coubard |
638:c90ae1400bf2 | 954 | } |
Vincent Coubard |
638:c90ae1400bf2 | 955 | |
Vincent Coubard |
638:c90ae1400bf2 | 956 | // Find the write position in the commands queue. |
Vincent Coubard |
638:c90ae1400bf2 | 957 | cmd_index = m_cmd_queue.count; |
Vincent Coubard |
638:c90ae1400bf2 | 958 | cmd_index += m_cmd_queue.rp; |
Vincent Coubard |
638:c90ae1400bf2 | 959 | cmd_index = cmd_index % FDS_CMD_QUEUE_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 960 | |
Vincent Coubard |
638:c90ae1400bf2 | 961 | *pp_cmd = &m_cmd_queue.cmd[cmd_index]; |
Vincent Coubard |
638:c90ae1400bf2 | 962 | m_cmd_queue.count += num_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 963 | |
Vincent Coubard |
638:c90ae1400bf2 | 964 | /* If no operations are associated with the command, such as is the case |
Vincent Coubard |
638:c90ae1400bf2 | 965 | * for initialization and compression, pp_chunk can be NULL. */ |
Vincent Coubard |
638:c90ae1400bf2 | 966 | if (num_chunks != 0) |
Vincent Coubard |
638:c90ae1400bf2 | 967 | { |
Vincent Coubard |
638:c90ae1400bf2 | 968 | chunk_index = m_chunk_queue.count; |
Vincent Coubard |
638:c90ae1400bf2 | 969 | chunk_index += m_chunk_queue.rp; |
Vincent Coubard |
638:c90ae1400bf2 | 970 | chunk_index = chunk_index % FDS_CHUNK_QUEUE_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 971 | |
Vincent Coubard |
638:c90ae1400bf2 | 972 | *pp_chunk = &m_chunk_queue.chunk[chunk_index]; |
Vincent Coubard |
638:c90ae1400bf2 | 973 | m_chunk_queue.count += num_chunks; |
Vincent Coubard |
638:c90ae1400bf2 | 974 | } |
Vincent Coubard |
638:c90ae1400bf2 | 975 | |
Vincent Coubard |
638:c90ae1400bf2 | 976 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 977 | |
Vincent Coubard |
638:c90ae1400bf2 | 978 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 979 | } |
Vincent Coubard |
638:c90ae1400bf2 | 980 | |
Vincent Coubard |
638:c90ae1400bf2 | 981 | |
Vincent Coubard |
638:c90ae1400bf2 | 982 | /**@brief Cancel the reservation on resources on queues. */ |
Vincent Coubard |
638:c90ae1400bf2 | 983 | static void queue_reserve_cancel(uint8_t num_cmd, uint8_t num_chunks) |
Vincent Coubard |
638:c90ae1400bf2 | 984 | { |
Vincent Coubard |
638:c90ae1400bf2 | 985 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 986 | m_cmd_queue.count -= num_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 987 | m_chunk_queue.count -= num_chunks; |
Vincent Coubard |
638:c90ae1400bf2 | 988 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 989 | } |
Vincent Coubard |
638:c90ae1400bf2 | 990 | |
Vincent Coubard |
638:c90ae1400bf2 | 991 | |
Vincent Coubard |
638:c90ae1400bf2 | 992 | static void pages_init(uint16_t * const p_pages_avail, |
Vincent Coubard |
638:c90ae1400bf2 | 993 | bool * const p_write_page_tag, |
Vincent Coubard |
638:c90ae1400bf2 | 994 | bool * const p_resume_comp) |
Vincent Coubard |
638:c90ae1400bf2 | 995 | { |
Vincent Coubard |
638:c90ae1400bf2 | 996 | *p_pages_avail = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 997 | *p_write_page_tag = false; |
Vincent Coubard |
638:c90ae1400bf2 | 998 | *p_resume_comp = false; |
Vincent Coubard |
638:c90ae1400bf2 | 999 | |
Vincent Coubard |
638:c90ae1400bf2 | 1000 | /** Scan pages and setup page data. |
Vincent Coubard |
638:c90ae1400bf2 | 1001 | * This function does NOT perform write operations in flash. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1002 | for (uint16_t i = 0; i < FDS_MAX_PAGES; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 1003 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1004 | // Initialize page data. Note that start_addr must be set BEFORE invoking page_identify(). |
Vincent Coubard |
638:c90ae1400bf2 | 1005 | m_pages[i].start_addr = fs_config.p_start_addr + (i * FS_PAGE_SIZE_WORDS); |
Vincent Coubard |
638:c90ae1400bf2 | 1006 | m_pages[i].write_offset = FDS_PAGE_TAG_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 1007 | m_pages[i].vpage_id = i; |
Vincent Coubard |
638:c90ae1400bf2 | 1008 | m_pages[i].records_open = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1009 | m_pages[i].words_reserved = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1010 | |
Vincent Coubard |
638:c90ae1400bf2 | 1011 | m_pages[i].page_type = page_identify(i); |
Vincent Coubard |
638:c90ae1400bf2 | 1012 | |
Vincent Coubard |
638:c90ae1400bf2 | 1013 | switch (m_pages[i].page_type) |
Vincent Coubard |
638:c90ae1400bf2 | 1014 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1015 | case FDS_PAGE_UNDEFINED: |
Vincent Coubard |
638:c90ae1400bf2 | 1016 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1017 | if (page_is_empty(i)) |
Vincent Coubard |
638:c90ae1400bf2 | 1018 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1019 | /* We have found an erased page, which can be initialized. |
Vincent Coubard |
638:c90ae1400bf2 | 1020 | * This will require a write in flash. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1021 | m_pages[i].page_type = FDS_PAGE_ERASED; |
Vincent Coubard |
638:c90ae1400bf2 | 1022 | *p_write_page_tag = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1023 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1024 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1025 | |
Vincent Coubard |
638:c90ae1400bf2 | 1026 | case FDS_PAGE_VALID: |
Vincent Coubard |
638:c90ae1400bf2 | 1027 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1028 | /** If a page is valid, we update its write offset. |
Vincent Coubard |
638:c90ae1400bf2 | 1029 | * Additionally, page_scan will update the last known record ID. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1030 | page_scan(i, &m_pages[i].write_offset); |
Vincent Coubard |
638:c90ae1400bf2 | 1031 | (*p_pages_avail)++; |
Vincent Coubard |
638:c90ae1400bf2 | 1032 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1033 | |
Vincent Coubard |
638:c90ae1400bf2 | 1034 | case FDS_PAGE_SWAP: |
Vincent Coubard |
638:c90ae1400bf2 | 1035 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1036 | m_gc.swap_page = i; |
Vincent Coubard |
638:c90ae1400bf2 | 1037 | m_swap_page_avail = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1038 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1039 | |
Vincent Coubard |
638:c90ae1400bf2 | 1040 | case FDS_PAGE_GC: |
Vincent Coubard |
638:c90ae1400bf2 | 1041 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1042 | /** There is an ongoing garbage collection. |
Vincent Coubard |
638:c90ae1400bf2 | 1043 | * We should resume the operation, which we don't yet. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1044 | m_gc.cur_page = i; |
Vincent Coubard |
638:c90ae1400bf2 | 1045 | m_gc.state = GC_PAGE; |
Vincent Coubard |
638:c90ae1400bf2 | 1046 | *p_resume_comp = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1047 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1048 | |
Vincent Coubard |
638:c90ae1400bf2 | 1049 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 1050 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1051 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1052 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1053 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1054 | |
Vincent Coubard |
638:c90ae1400bf2 | 1055 | |
Vincent Coubard |
638:c90ae1400bf2 | 1056 | // NOTE: Adds FDS_HEADER_SIZE automatically. |
Vincent Coubard |
638:c90ae1400bf2 | 1057 | static ret_code_t write_space_reserve(uint16_t length_words, uint16_t * vpage_id) |
Vincent Coubard |
638:c90ae1400bf2 | 1058 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1059 | bool space_reserved = false; |
Vincent Coubard |
638:c90ae1400bf2 | 1060 | uint16_t total_len_words = length_words + FDS_HEADER_SIZE; |
Vincent Coubard |
638:c90ae1400bf2 | 1061 | |
Vincent Coubard |
638:c90ae1400bf2 | 1062 | if (total_len_words >= FS_PAGE_SIZE_WORDS - FDS_PAGE_TAG_SIZE) |
Vincent Coubard |
638:c90ae1400bf2 | 1063 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1064 | return NRF_ERROR_INVALID_LENGTH; |
Vincent Coubard |
638:c90ae1400bf2 | 1065 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1066 | |
Vincent Coubard |
638:c90ae1400bf2 | 1067 | for (uint16_t page = 0; page < FDS_MAX_PAGES; page++) |
Vincent Coubard |
638:c90ae1400bf2 | 1068 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1069 | if ((m_pages[page].page_type == FDS_PAGE_VALID) && |
Vincent Coubard |
638:c90ae1400bf2 | 1070 | (page_has_space(page, total_len_words))) |
Vincent Coubard |
638:c90ae1400bf2 | 1071 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1072 | space_reserved = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1073 | *vpage_id = m_pages[page].vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1074 | |
Vincent Coubard |
638:c90ae1400bf2 | 1075 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 1076 | m_pages[page].words_reserved += total_len_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1077 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 1078 | |
Vincent Coubard |
638:c90ae1400bf2 | 1079 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1080 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1081 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1082 | |
Vincent Coubard |
638:c90ae1400bf2 | 1083 | return space_reserved ? NRF_SUCCESS : NRF_ERROR_NO_MEM; |
Vincent Coubard |
638:c90ae1400bf2 | 1084 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1085 | |
Vincent Coubard |
638:c90ae1400bf2 | 1086 | |
Vincent Coubard |
638:c90ae1400bf2 | 1087 | static bool chunk_is_aligned(fds_record_chunk_t const * const p_chunk, uint8_t num_parts) |
Vincent Coubard |
638:c90ae1400bf2 | 1088 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1089 | for (uint8_t i = 0; i < num_parts; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 1090 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1091 | if (!is_word_aligned(p_chunk[i].p_data)) |
Vincent Coubard |
638:c90ae1400bf2 | 1092 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1093 | return false; |
Vincent Coubard |
638:c90ae1400bf2 | 1094 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1095 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1096 | |
Vincent Coubard |
638:c90ae1400bf2 | 1097 | return true; |
Vincent Coubard |
638:c90ae1400bf2 | 1098 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1099 | |
Vincent Coubard |
638:c90ae1400bf2 | 1100 | |
Vincent Coubard |
638:c90ae1400bf2 | 1101 | static ret_code_t init_execute(uint32_t result, uint32_t const * p_page_addr) |
Vincent Coubard |
638:c90ae1400bf2 | 1102 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1103 | uint16_t cur_page; |
Vincent Coubard |
638:c90ae1400bf2 | 1104 | bool page_tag_written = false; |
Vincent Coubard |
638:c90ae1400bf2 | 1105 | |
Vincent Coubard |
638:c90ae1400bf2 | 1106 | if (result != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1107 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1108 | // Oops. Error. |
Vincent Coubard |
638:c90ae1400bf2 | 1109 | return result; |
Vincent Coubard |
638:c90ae1400bf2 | 1110 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1111 | |
Vincent Coubard |
638:c90ae1400bf2 | 1112 | // Here we just distinguish between the first invocation and the others. |
Vincent Coubard |
638:c90ae1400bf2 | 1113 | cur_page = p_page_addr == NULL ? 0 : page_by_addr(p_page_addr) + 1; |
Vincent Coubard |
638:c90ae1400bf2 | 1114 | |
Vincent Coubard |
638:c90ae1400bf2 | 1115 | if (cur_page == FDS_MAX_PAGES) |
Vincent Coubard |
638:c90ae1400bf2 | 1116 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1117 | // We have finished. We'd need to set some flags. |
Vincent Coubard |
638:c90ae1400bf2 | 1118 | flag_set(FDS_FLAG_INITIALIZED); |
Vincent Coubard |
638:c90ae1400bf2 | 1119 | flag_clear(FDS_FLAG_INITIALIZING); |
Vincent Coubard |
638:c90ae1400bf2 | 1120 | |
Vincent Coubard |
638:c90ae1400bf2 | 1121 | return COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 1122 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1123 | |
Vincent Coubard |
638:c90ae1400bf2 | 1124 | while (cur_page < FDS_MAX_PAGES && !page_tag_written) |
Vincent Coubard |
638:c90ae1400bf2 | 1125 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1126 | if (m_pages[cur_page].page_type == FDS_PAGE_ERASED) |
Vincent Coubard |
638:c90ae1400bf2 | 1127 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1128 | page_tag_written = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1129 | |
Vincent Coubard |
638:c90ae1400bf2 | 1130 | if (m_swap_page_avail) |
Vincent Coubard |
638:c90ae1400bf2 | 1131 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1132 | if (page_tag_write_valid(cur_page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1133 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1134 | // Oops. Error. |
Vincent Coubard |
638:c90ae1400bf2 | 1135 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1136 | // Update the page type. |
Vincent Coubard |
638:c90ae1400bf2 | 1137 | m_pages[cur_page].page_type = FDS_PAGE_VALID; |
Vincent Coubard |
638:c90ae1400bf2 | 1138 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1139 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1140 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1141 | if (page_tag_write_swap(cur_page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1142 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1143 | // Oops. Error. |
Vincent Coubard |
638:c90ae1400bf2 | 1144 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1145 | // Update the page type. |
Vincent Coubard |
638:c90ae1400bf2 | 1146 | m_pages[cur_page].page_type = FDS_PAGE_SWAP; |
Vincent Coubard |
638:c90ae1400bf2 | 1147 | |
Vincent Coubard |
638:c90ae1400bf2 | 1148 | /** Update compression data. We set this information in init_pages |
Vincent Coubard |
638:c90ae1400bf2 | 1149 | * if it is available, otherwise, we should set it here. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1150 | m_swap_page_avail = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1151 | m_gc.swap_page = cur_page; |
Vincent Coubard |
638:c90ae1400bf2 | 1152 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1153 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1154 | |
Vincent Coubard |
638:c90ae1400bf2 | 1155 | cur_page++; |
Vincent Coubard |
638:c90ae1400bf2 | 1156 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1157 | |
Vincent Coubard |
638:c90ae1400bf2 | 1158 | if (!page_tag_written) |
Vincent Coubard |
638:c90ae1400bf2 | 1159 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1160 | if (m_swap_page_avail) |
Vincent Coubard |
638:c90ae1400bf2 | 1161 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1162 | return COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 1163 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1164 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1165 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1166 | // There is no empty space to use as swap. |
Vincent Coubard |
638:c90ae1400bf2 | 1167 | // Notify user that no compression is available? |
Vincent Coubard |
638:c90ae1400bf2 | 1168 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1169 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1170 | |
Vincent Coubard |
638:c90ae1400bf2 | 1171 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 1172 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1173 | |
Vincent Coubard |
638:c90ae1400bf2 | 1174 | |
Vincent Coubard |
638:c90ae1400bf2 | 1175 | /**@brief Function to execute write and update commands. |
Vincent Coubard |
638:c90ae1400bf2 | 1176 | * |
Vincent Coubard |
638:c90ae1400bf2 | 1177 | */ |
Vincent Coubard |
638:c90ae1400bf2 | 1178 | static ret_code_t store_execute(uint32_t result, fds_cmd_t * const p_cmd) |
Vincent Coubard |
638:c90ae1400bf2 | 1179 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1180 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1181 | fds_record_chunk_t * p_chunk = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1182 | fds_page_t * p_page = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1183 | uint32_t * p_write_addr; |
Vincent Coubard |
638:c90ae1400bf2 | 1184 | |
Vincent Coubard |
638:c90ae1400bf2 | 1185 | // Using virtual page IDs allows other operations to be queued even if GC has been requested. |
Vincent Coubard |
638:c90ae1400bf2 | 1186 | page_from_virtual_id(p_cmd->vpage_id, &p_page); |
Vincent Coubard |
638:c90ae1400bf2 | 1187 | |
Vincent Coubard |
638:c90ae1400bf2 | 1188 | if (result != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1189 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1190 | // The previous operation has failed, update the page data. |
Vincent Coubard |
638:c90ae1400bf2 | 1191 | p_page->write_offset += (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1192 | p_page->words_reserved -= (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1193 | |
Vincent Coubard |
638:c90ae1400bf2 | 1194 | return result; |
Vincent Coubard |
638:c90ae1400bf2 | 1195 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1196 | |
Vincent Coubard |
638:c90ae1400bf2 | 1197 | // Compute the write address (just syntatic sugar). |
Vincent Coubard |
638:c90ae1400bf2 | 1198 | p_write_addr = (uint32_t*)(p_page->start_addr + p_page->write_offset); |
Vincent Coubard |
638:c90ae1400bf2 | 1199 | |
Vincent Coubard |
638:c90ae1400bf2 | 1200 | // Execute the operation. |
Vincent Coubard |
638:c90ae1400bf2 | 1201 | switch (p_cmd->op_code) |
Vincent Coubard |
638:c90ae1400bf2 | 1202 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1203 | case FDS_OP_WRITE_TL: |
Vincent Coubard |
638:c90ae1400bf2 | 1204 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1205 | fs_ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1206 | p_write_addr + FDS_WRITE_OFFSET_TL, |
Vincent Coubard |
638:c90ae1400bf2 | 1207 | (uint32_t*)&p_cmd->record_header.tl, |
Vincent Coubard |
638:c90ae1400bf2 | 1208 | FDS_HEADER_SIZE_TL /*Words*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1209 | |
Vincent Coubard |
638:c90ae1400bf2 | 1210 | // Set the next operation to be executed. |
Vincent Coubard |
638:c90ae1400bf2 | 1211 | p_cmd->op_code = FDS_OP_WRITE_ID; |
Vincent Coubard |
638:c90ae1400bf2 | 1212 | |
Vincent Coubard |
638:c90ae1400bf2 | 1213 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1214 | |
Vincent Coubard |
638:c90ae1400bf2 | 1215 | case FDS_OP_WRITE_ID: |
Vincent Coubard |
638:c90ae1400bf2 | 1216 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1217 | fs_ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1218 | p_write_addr + FDS_WRITE_OFFSET_ID, |
Vincent Coubard |
638:c90ae1400bf2 | 1219 | (uint32_t*)&p_cmd->record_header.id, |
Vincent Coubard |
638:c90ae1400bf2 | 1220 | FDS_HEADER_SIZE_ID /*Words*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1221 | |
Vincent Coubard |
638:c90ae1400bf2 | 1222 | p_cmd->op_code = FDS_OP_WRITE_CHUNK; |
Vincent Coubard |
638:c90ae1400bf2 | 1223 | |
Vincent Coubard |
638:c90ae1400bf2 | 1224 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1225 | |
Vincent Coubard |
638:c90ae1400bf2 | 1226 | case FDS_OP_WRITE_CHUNK: |
Vincent Coubard |
638:c90ae1400bf2 | 1227 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1228 | // Decrement the number of chunks left to write. |
Vincent Coubard |
638:c90ae1400bf2 | 1229 | p_cmd->num_chunks--; |
Vincent Coubard |
638:c90ae1400bf2 | 1230 | |
Vincent Coubard |
638:c90ae1400bf2 | 1231 | // Retrieve the chunk to be written. |
Vincent Coubard |
638:c90ae1400bf2 | 1232 | chunk_queue_get_and_advance(&p_chunk); |
Vincent Coubard |
638:c90ae1400bf2 | 1233 | |
Vincent Coubard |
638:c90ae1400bf2 | 1234 | fs_ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1235 | p_write_addr + p_cmd->chunk_offset, |
Vincent Coubard |
638:c90ae1400bf2 | 1236 | p_chunk->p_data, |
Vincent Coubard |
638:c90ae1400bf2 | 1237 | p_chunk->length_words); |
Vincent Coubard |
638:c90ae1400bf2 | 1238 | |
Vincent Coubard |
638:c90ae1400bf2 | 1239 | // Accumulate the offset. |
Vincent Coubard |
638:c90ae1400bf2 | 1240 | p_cmd->chunk_offset += p_chunk->length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1241 | |
Vincent Coubard |
638:c90ae1400bf2 | 1242 | if (p_cmd->num_chunks == 0) |
Vincent Coubard |
638:c90ae1400bf2 | 1243 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1244 | /** We have written all the record chunks; we'll write |
Vincent Coubard |
638:c90ae1400bf2 | 1245 | * IC last as a mean to 'validate' the record. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1246 | p_cmd->op_code = FDS_OP_WRITE_IC; |
Vincent Coubard |
638:c90ae1400bf2 | 1247 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1248 | |
Vincent Coubard |
638:c90ae1400bf2 | 1249 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1250 | |
Vincent Coubard |
638:c90ae1400bf2 | 1251 | case FDS_OP_WRITE_IC: |
Vincent Coubard |
638:c90ae1400bf2 | 1252 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1253 | fs_ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1254 | p_write_addr + FDS_WRITE_OFFSET_IC, |
Vincent Coubard |
638:c90ae1400bf2 | 1255 | (uint32_t*)&p_cmd->record_header.ic, |
Vincent Coubard |
638:c90ae1400bf2 | 1256 | FDS_HEADER_SIZE_IC /*Words*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1257 | |
Vincent Coubard |
638:c90ae1400bf2 | 1258 | // This is the final operation. |
Vincent Coubard |
638:c90ae1400bf2 | 1259 | p_cmd->op_code = FDS_OP_DONE; |
Vincent Coubard |
638:c90ae1400bf2 | 1260 | |
Vincent Coubard |
638:c90ae1400bf2 | 1261 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1262 | |
Vincent Coubard |
638:c90ae1400bf2 | 1263 | case FDS_OP_DONE: |
Vincent Coubard |
638:c90ae1400bf2 | 1264 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1265 | // We have successfully written down the IC. The command has completed successfully. |
Vincent Coubard |
638:c90ae1400bf2 | 1266 | p_page->write_offset += (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1267 | p_page->words_reserved -= (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1268 | |
Vincent Coubard |
638:c90ae1400bf2 | 1269 | return COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 1270 | |
Vincent Coubard |
638:c90ae1400bf2 | 1271 | }; |
Vincent Coubard |
638:c90ae1400bf2 | 1272 | |
Vincent Coubard |
638:c90ae1400bf2 | 1273 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 1274 | fs_ret = NRF_ERROR_INTERNAL; |
Vincent Coubard |
638:c90ae1400bf2 | 1275 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1276 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1277 | |
Vincent Coubard |
638:c90ae1400bf2 | 1278 | // If fs_store did not succeed, the command has failed. |
Vincent Coubard |
638:c90ae1400bf2 | 1279 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1280 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1281 | /** We're not going to receive a callback from fstorage |
Vincent Coubard |
638:c90ae1400bf2 | 1282 | * so we update the page data right away. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1283 | p_page->write_offset += (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1284 | p_page->words_reserved -= (FDS_HEADER_SIZE + (p_cmd->chunk_offset - FDS_WRITE_OFFSET_DATA)); |
Vincent Coubard |
638:c90ae1400bf2 | 1285 | |
Vincent Coubard |
638:c90ae1400bf2 | 1286 | // We should propagate the error from fstorage. |
Vincent Coubard |
638:c90ae1400bf2 | 1287 | return fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1288 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1289 | |
Vincent Coubard |
638:c90ae1400bf2 | 1290 | // An operation has successfully been executed. Wait for the callback. |
Vincent Coubard |
638:c90ae1400bf2 | 1291 | return COMMAND_EXECUTING; |
Vincent Coubard |
638:c90ae1400bf2 | 1292 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1293 | |
Vincent Coubard |
638:c90ae1400bf2 | 1294 | |
Vincent Coubard |
638:c90ae1400bf2 | 1295 | static ret_code_t clear_execute(ret_code_t result, fds_cmd_t * const p_cmd) |
Vincent Coubard |
638:c90ae1400bf2 | 1296 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1297 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1298 | fds_record_desc_t desc; |
Vincent Coubard |
638:c90ae1400bf2 | 1299 | |
Vincent Coubard |
638:c90ae1400bf2 | 1300 | // This must persist across calls. |
Vincent Coubard |
638:c90ae1400bf2 | 1301 | static fds_find_token_t tok; |
Vincent Coubard |
638:c90ae1400bf2 | 1302 | |
Vincent Coubard |
638:c90ae1400bf2 | 1303 | if (result != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1304 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1305 | // A previous operation has failed. Propagate the error. |
Vincent Coubard |
638:c90ae1400bf2 | 1306 | return result; |
Vincent Coubard |
638:c90ae1400bf2 | 1307 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1308 | |
Vincent Coubard |
638:c90ae1400bf2 | 1309 | switch (p_cmd->op_code) |
Vincent Coubard |
638:c90ae1400bf2 | 1310 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1311 | case FDS_OP_CLEAR_TL: |
Vincent Coubard |
638:c90ae1400bf2 | 1312 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1313 | // We were provided a descriptor for the record. |
Vincent Coubard |
638:c90ae1400bf2 | 1314 | desc.vpage_id = p_cmd->vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1315 | desc.record_id = p_cmd->record_header.id; |
Vincent Coubard |
638:c90ae1400bf2 | 1316 | |
Vincent Coubard |
638:c90ae1400bf2 | 1317 | /** Unfortunately, we always seek the record in this case, |
Vincent Coubard |
638:c90ae1400bf2 | 1318 | * because we don't buffer an entire record descriptor in the |
Vincent Coubard |
638:c90ae1400bf2 | 1319 | * fds_cmd_t structure. Keep in mind though, that we will |
Vincent Coubard |
638:c90ae1400bf2 | 1320 | * seek one page at most. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1321 | if (seek_record(&desc) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1322 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1323 | // The record never existed, or it is already cleared. |
Vincent Coubard |
638:c90ae1400bf2 | 1324 | ret = NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 1325 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1326 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1327 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1328 | // Copy the record key, so that it may be returned in the callback. |
Vincent Coubard |
638:c90ae1400bf2 | 1329 | p_cmd->record_header.tl.type = ((fds_header_t*)desc.p_rec)->tl.type; |
Vincent Coubard |
638:c90ae1400bf2 | 1330 | p_cmd->record_header.ic.instance = ((fds_header_t*)desc.p_rec)->ic.instance; |
Vincent Coubard |
638:c90ae1400bf2 | 1331 | |
Vincent Coubard |
638:c90ae1400bf2 | 1332 | ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1333 | desc.p_rec, |
Vincent Coubard |
638:c90ae1400bf2 | 1334 | (uint32_t*)&m_fds_tl_invalid, |
Vincent Coubard |
638:c90ae1400bf2 | 1335 | FDS_HEADER_SIZE_TL); |
Vincent Coubard |
638:c90ae1400bf2 | 1336 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1337 | |
Vincent Coubard |
638:c90ae1400bf2 | 1338 | p_cmd->op_code = FDS_OP_DONE; |
Vincent Coubard |
638:c90ae1400bf2 | 1339 | |
Vincent Coubard |
638:c90ae1400bf2 | 1340 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1341 | |
Vincent Coubard |
638:c90ae1400bf2 | 1342 | case FDS_OP_CLEAR_INSTANCE: |
Vincent Coubard |
638:c90ae1400bf2 | 1343 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1344 | if (find_record(NULL, &p_cmd->record_header.ic.instance, |
Vincent Coubard |
638:c90ae1400bf2 | 1345 | &desc, &tok) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1346 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1347 | // No more records to be found. |
Vincent Coubard |
638:c90ae1400bf2 | 1348 | p_cmd->op_code = FDS_OP_DONE; |
Vincent Coubard |
638:c90ae1400bf2 | 1349 | |
Vincent Coubard |
638:c90ae1400bf2 | 1350 | // Zero the token, so that we may reuse it. |
Vincent Coubard |
638:c90ae1400bf2 | 1351 | memset(&tok, 0, sizeof(fds_find_token_t)); |
Vincent Coubard |
638:c90ae1400bf2 | 1352 | |
Vincent Coubard |
638:c90ae1400bf2 | 1353 | /** We won't receive a callback, since no flash operation |
Vincent Coubard |
638:c90ae1400bf2 | 1354 | * was initiated. The command has finished. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1355 | ret = COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 1356 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1357 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1358 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1359 | ret = fs_store(&fs_config, |
Vincent Coubard |
638:c90ae1400bf2 | 1360 | desc.p_rec, |
Vincent Coubard |
638:c90ae1400bf2 | 1361 | (uint32_t*)&m_fds_tl_invalid, |
Vincent Coubard |
638:c90ae1400bf2 | 1362 | FDS_HEADER_SIZE_TL); |
Vincent Coubard |
638:c90ae1400bf2 | 1363 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1364 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1365 | |
Vincent Coubard |
638:c90ae1400bf2 | 1366 | case FDS_OP_DONE: |
Vincent Coubard |
638:c90ae1400bf2 | 1367 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1368 | /** The last operation completed successfully. |
Vincent Coubard |
638:c90ae1400bf2 | 1369 | * The command has finished. Return. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1370 | ret = COMMAND_COMPLETED; |
Vincent Coubard |
638:c90ae1400bf2 | 1371 | } break; |
Vincent Coubard |
638:c90ae1400bf2 | 1372 | |
Vincent Coubard |
638:c90ae1400bf2 | 1373 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 1374 | ret = NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1375 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1376 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1377 | |
Vincent Coubard |
638:c90ae1400bf2 | 1378 | // Await for the operation result. |
Vincent Coubard |
638:c90ae1400bf2 | 1379 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1380 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1381 | |
Vincent Coubard |
638:c90ae1400bf2 | 1382 | |
Vincent Coubard |
638:c90ae1400bf2 | 1383 | static ret_code_t cmd_queue_process(void) |
Vincent Coubard |
638:c90ae1400bf2 | 1384 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1385 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1386 | fds_cmd_t * const p_cmd = &m_cmd_queue.cmd[m_cmd_queue.rp]; |
Vincent Coubard |
638:c90ae1400bf2 | 1387 | |
Vincent Coubard |
638:c90ae1400bf2 | 1388 | switch (p_cmd->id) |
Vincent Coubard |
638:c90ae1400bf2 | 1389 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1390 | case FDS_CMD_INIT: |
Vincent Coubard |
638:c90ae1400bf2 | 1391 | ret = init_execute(NRF_SUCCESS, NULL); |
Vincent Coubard |
638:c90ae1400bf2 | 1392 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1393 | |
Vincent Coubard |
638:c90ae1400bf2 | 1394 | case FDS_CMD_WRITE: |
Vincent Coubard |
638:c90ae1400bf2 | 1395 | case FDS_CMD_UPDATE: |
Vincent Coubard |
638:c90ae1400bf2 | 1396 | ret = store_execute(NRF_SUCCESS, p_cmd); |
Vincent Coubard |
638:c90ae1400bf2 | 1397 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1398 | |
Vincent Coubard |
638:c90ae1400bf2 | 1399 | case FDS_CMD_CLEAR: |
Vincent Coubard |
638:c90ae1400bf2 | 1400 | case FDS_CMD_CLEAR_INST: |
Vincent Coubard |
638:c90ae1400bf2 | 1401 | ret = clear_execute(NRF_SUCCESS, p_cmd); |
Vincent Coubard |
638:c90ae1400bf2 | 1402 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1403 | |
Vincent Coubard |
638:c90ae1400bf2 | 1404 | case FDS_CMD_GC: |
Vincent Coubard |
638:c90ae1400bf2 | 1405 | ret = gc_execute(NRF_SUCCESS); |
Vincent Coubard |
638:c90ae1400bf2 | 1406 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1407 | |
Vincent Coubard |
638:c90ae1400bf2 | 1408 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 1409 | ret = NRF_ERROR_FORBIDDEN; |
Vincent Coubard |
638:c90ae1400bf2 | 1410 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1411 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1412 | |
Vincent Coubard |
638:c90ae1400bf2 | 1413 | if ((ret == COMMAND_EXECUTING) || (ret == COMMAND_COMPLETED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1414 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1415 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1416 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1417 | |
Vincent Coubard |
638:c90ae1400bf2 | 1418 | // This is an error. |
Vincent Coubard |
638:c90ae1400bf2 | 1419 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1420 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1421 | |
Vincent Coubard |
638:c90ae1400bf2 | 1422 | |
Vincent Coubard |
638:c90ae1400bf2 | 1423 | static ret_code_t cmd_queue_process_start(void) |
Vincent Coubard |
638:c90ae1400bf2 | 1424 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1425 | bool start_processing = false; |
Vincent Coubard |
638:c90ae1400bf2 | 1426 | |
Vincent Coubard |
638:c90ae1400bf2 | 1427 | if (!flag_is_set(FDS_FLAG_PROCESSING)) |
Vincent Coubard |
638:c90ae1400bf2 | 1428 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1429 | flag_set(FDS_FLAG_PROCESSING); |
Vincent Coubard |
638:c90ae1400bf2 | 1430 | start_processing = true; |
Vincent Coubard |
638:c90ae1400bf2 | 1431 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1432 | |
Vincent Coubard |
638:c90ae1400bf2 | 1433 | if (!start_processing) |
Vincent Coubard |
638:c90ae1400bf2 | 1434 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1435 | // We are awaiting a callback, so there is no need to manually start queue processing. |
Vincent Coubard |
638:c90ae1400bf2 | 1436 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1437 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1438 | |
Vincent Coubard |
638:c90ae1400bf2 | 1439 | return cmd_queue_process(); |
Vincent Coubard |
638:c90ae1400bf2 | 1440 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1441 | |
Vincent Coubard |
638:c90ae1400bf2 | 1442 | |
Vincent Coubard |
638:c90ae1400bf2 | 1443 | static void fs_callback(uint8_t op_code, |
Vincent Coubard |
638:c90ae1400bf2 | 1444 | uint32_t result, |
Vincent Coubard |
638:c90ae1400bf2 | 1445 | uint32_t const * p_data, |
Vincent Coubard |
638:c90ae1400bf2 | 1446 | fs_length_t length) |
Vincent Coubard |
638:c90ae1400bf2 | 1447 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1448 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1449 | fds_cmd_t * p_cmd = &m_cmd_queue.cmd[m_cmd_queue.rp]; |
Vincent Coubard |
638:c90ae1400bf2 | 1450 | fds_record_key_t record_key; |
Vincent Coubard |
638:c90ae1400bf2 | 1451 | |
Vincent Coubard |
638:c90ae1400bf2 | 1452 | switch (p_cmd->id) |
Vincent Coubard |
638:c90ae1400bf2 | 1453 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1454 | case FDS_CMD_INIT: |
Vincent Coubard |
638:c90ae1400bf2 | 1455 | ret = init_execute(result, p_data); |
Vincent Coubard |
638:c90ae1400bf2 | 1456 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1457 | |
Vincent Coubard |
638:c90ae1400bf2 | 1458 | case FDS_CMD_WRITE: |
Vincent Coubard |
638:c90ae1400bf2 | 1459 | case FDS_CMD_UPDATE: |
Vincent Coubard |
638:c90ae1400bf2 | 1460 | ret = store_execute(result, p_cmd); |
Vincent Coubard |
638:c90ae1400bf2 | 1461 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1462 | |
Vincent Coubard |
638:c90ae1400bf2 | 1463 | case FDS_CMD_CLEAR: |
Vincent Coubard |
638:c90ae1400bf2 | 1464 | case FDS_CMD_CLEAR_INST: |
Vincent Coubard |
638:c90ae1400bf2 | 1465 | ret = clear_execute(result, p_cmd); |
Vincent Coubard |
638:c90ae1400bf2 | 1466 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1467 | |
Vincent Coubard |
638:c90ae1400bf2 | 1468 | case FDS_CMD_GC: |
Vincent Coubard |
638:c90ae1400bf2 | 1469 | ret = gc_execute(result); |
Vincent Coubard |
638:c90ae1400bf2 | 1470 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1471 | |
Vincent Coubard |
638:c90ae1400bf2 | 1472 | default: |
Vincent Coubard |
638:c90ae1400bf2 | 1473 | // Should not happen. |
Vincent Coubard |
638:c90ae1400bf2 | 1474 | ret = NRF_ERROR_INTERNAL; |
Vincent Coubard |
638:c90ae1400bf2 | 1475 | break; |
Vincent Coubard |
638:c90ae1400bf2 | 1476 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1477 | |
Vincent Coubard |
638:c90ae1400bf2 | 1478 | if (ret == COMMAND_EXECUTING /*=NRF_SUCCESS*/) |
Vincent Coubard |
638:c90ae1400bf2 | 1479 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1480 | /** The current command is still being processed. |
Vincent Coubard |
638:c90ae1400bf2 | 1481 | * The command queue does not need to advance. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1482 | return; |
Vincent Coubard |
638:c90ae1400bf2 | 1483 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1484 | |
Vincent Coubard |
638:c90ae1400bf2 | 1485 | // Initialize the fds_record_key_t structure needed for the callback. |
Vincent Coubard |
638:c90ae1400bf2 | 1486 | record_key.type = p_cmd->record_header.tl.type; |
Vincent Coubard |
638:c90ae1400bf2 | 1487 | record_key.instance = p_cmd->record_header.ic.instance; |
Vincent Coubard |
638:c90ae1400bf2 | 1488 | |
Vincent Coubard |
638:c90ae1400bf2 | 1489 | // The command has either completed or an operation (and thus the command) has failed. |
Vincent Coubard |
638:c90ae1400bf2 | 1490 | if (ret == COMMAND_COMPLETED) |
Vincent Coubard |
638:c90ae1400bf2 | 1491 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1492 | // The command has completed successfully. Notify the application. |
Vincent Coubard |
638:c90ae1400bf2 | 1493 | app_notify(NRF_SUCCESS, p_cmd->id, p_cmd->record_header.id, record_key); |
Vincent Coubard |
638:c90ae1400bf2 | 1494 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1495 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1496 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1497 | /** An operation has failed. This is fatal for the execution of a command. |
Vincent Coubard |
638:c90ae1400bf2 | 1498 | * Skip other operations associated with the current command. |
Vincent Coubard |
638:c90ae1400bf2 | 1499 | * Notify the user of the failure. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1500 | chunk_queue_skip(p_cmd->num_chunks); |
Vincent Coubard |
638:c90ae1400bf2 | 1501 | app_notify(ret /*=result*/, p_cmd->id, p_cmd->record_header.id, record_key); |
Vincent Coubard |
638:c90ae1400bf2 | 1502 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1503 | |
Vincent Coubard |
638:c90ae1400bf2 | 1504 | // Advance the command queue, and if there is still something in the queue, process it. |
Vincent Coubard |
638:c90ae1400bf2 | 1505 | if (cmd_queue_advance()) |
Vincent Coubard |
638:c90ae1400bf2 | 1506 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1507 | /** Only process the queue if there are no pending commands being queued, since they |
Vincent Coubard |
638:c90ae1400bf2 | 1508 | * will begin to process the queue on their own. Be sure to clear |
Vincent Coubard |
638:c90ae1400bf2 | 1509 | * the flag FDS_FLAG_PROCESSING though ! */ |
Vincent Coubard |
638:c90ae1400bf2 | 1510 | if (atomic_counter_is_zero()) |
Vincent Coubard |
638:c90ae1400bf2 | 1511 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1512 | cmd_queue_process(); |
Vincent Coubard |
638:c90ae1400bf2 | 1513 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1514 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1515 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1516 | flag_clear(FDS_FLAG_PROCESSING); |
Vincent Coubard |
638:c90ae1400bf2 | 1517 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1518 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1519 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1520 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1521 | /** No more elements in the queue. Clear the FDS_FLAG_PROCESSING flag, |
Vincent Coubard |
638:c90ae1400bf2 | 1522 | * so that new commands can start the queue processing. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1523 | flag_clear(FDS_FLAG_PROCESSING); |
Vincent Coubard |
638:c90ae1400bf2 | 1524 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1525 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1526 | |
Vincent Coubard |
638:c90ae1400bf2 | 1527 | |
Vincent Coubard |
638:c90ae1400bf2 | 1528 | ret_code_t fds_init() |
Vincent Coubard |
638:c90ae1400bf2 | 1529 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1530 | ret_code_t fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1531 | fds_cmd_t * p_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 1532 | uint16_t pages_avail; |
Vincent Coubard |
638:c90ae1400bf2 | 1533 | bool write_page_tag; |
Vincent Coubard |
638:c90ae1400bf2 | 1534 | bool resume_compression; |
Vincent Coubard |
638:c90ae1400bf2 | 1535 | |
Vincent Coubard |
638:c90ae1400bf2 | 1536 | fds_record_key_t const dummy_key = {.type = FDS_TYPE_ID_INVALID, |
Vincent Coubard |
638:c90ae1400bf2 | 1537 | .instance = FDS_INSTANCE_ID_INVALID}; |
Vincent Coubard |
638:c90ae1400bf2 | 1538 | |
Vincent Coubard |
638:c90ae1400bf2 | 1539 | if (flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1540 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1541 | // Notify immediately. |
Vincent Coubard |
638:c90ae1400bf2 | 1542 | app_notify(NRF_SUCCESS, FDS_CMD_INIT, 0 /*unused*/, dummy_key /*unused*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1543 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1544 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1545 | |
Vincent Coubard |
638:c90ae1400bf2 | 1546 | if (flag_is_set(FDS_FLAG_INITIALIZING)) |
Vincent Coubard |
638:c90ae1400bf2 | 1547 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1548 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1549 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1550 | |
Vincent Coubard |
638:c90ae1400bf2 | 1551 | fs_ret = fs_init(); |
Vincent Coubard |
638:c90ae1400bf2 | 1552 | if (fs_ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1553 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1554 | // fs_init() failed, propagate the error. |
Vincent Coubard |
638:c90ae1400bf2 | 1555 | return fs_ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1556 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1557 | |
Vincent Coubard |
638:c90ae1400bf2 | 1558 | queues_init(); |
Vincent Coubard |
638:c90ae1400bf2 | 1559 | |
Vincent Coubard |
638:c90ae1400bf2 | 1560 | /** Initialize the last known record to zero. |
Vincent Coubard |
638:c90ae1400bf2 | 1561 | * Its value will be updated by page_scan() called in pages_init(). */ |
Vincent Coubard |
638:c90ae1400bf2 | 1562 | m_last_rec_id = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1563 | |
Vincent Coubard |
638:c90ae1400bf2 | 1564 | // Initialize the page table containing all info on pages (address, type etc). |
Vincent Coubard |
638:c90ae1400bf2 | 1565 | pages_init(&pages_avail, &write_page_tag, &resume_compression); |
Vincent Coubard |
638:c90ae1400bf2 | 1566 | |
Vincent Coubard |
638:c90ae1400bf2 | 1567 | if (pages_avail == 0 && !write_page_tag) |
Vincent Coubard |
638:c90ae1400bf2 | 1568 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1569 | return NRF_ERROR_NO_MEM; |
Vincent Coubard |
638:c90ae1400bf2 | 1570 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1571 | |
Vincent Coubard |
638:c90ae1400bf2 | 1572 | /** This flag means fds_init() has been called. However, |
Vincent Coubard |
638:c90ae1400bf2 | 1573 | * the module is NOT yet initialized. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1574 | flag_set(FDS_FLAG_INITIALIZING); |
Vincent Coubard |
638:c90ae1400bf2 | 1575 | |
Vincent Coubard |
638:c90ae1400bf2 | 1576 | if (resume_compression) |
Vincent Coubard |
638:c90ae1400bf2 | 1577 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1578 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1579 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1580 | |
Vincent Coubard |
638:c90ae1400bf2 | 1581 | if (write_page_tag) |
Vincent Coubard |
638:c90ae1400bf2 | 1582 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1583 | if (queue_reserve(FDS_CMD_QUEUE_SIZE_INIT, 0, &p_cmd, NULL) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1584 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1585 | // Should never happen. |
Vincent Coubard |
638:c90ae1400bf2 | 1586 | return NRF_ERROR_BUSY; |
Vincent Coubard |
638:c90ae1400bf2 | 1587 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1588 | |
Vincent Coubard |
638:c90ae1400bf2 | 1589 | // Initialize the command in the queue. |
Vincent Coubard |
638:c90ae1400bf2 | 1590 | p_cmd->id = FDS_CMD_INIT; |
Vincent Coubard |
638:c90ae1400bf2 | 1591 | |
Vincent Coubard |
638:c90ae1400bf2 | 1592 | return cmd_queue_process_start(); |
Vincent Coubard |
638:c90ae1400bf2 | 1593 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1594 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1595 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1596 | /* No flash operation is necessary for initialization. |
Vincent Coubard |
638:c90ae1400bf2 | 1597 | * We can notify the application immediately. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1598 | flag_set (FDS_FLAG_INITIALIZED); |
Vincent Coubard |
638:c90ae1400bf2 | 1599 | flag_clear(FDS_FLAG_INITIALIZING); |
Vincent Coubard |
638:c90ae1400bf2 | 1600 | app_notify(NRF_SUCCESS, FDS_CMD_INIT, 0 /*unused*/, dummy_key /*unused*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1601 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1602 | |
Vincent Coubard |
638:c90ae1400bf2 | 1603 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1604 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1605 | |
Vincent Coubard |
638:c90ae1400bf2 | 1606 | |
Vincent Coubard |
638:c90ae1400bf2 | 1607 | ret_code_t fds_open(fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 1608 | fds_record_t * const p_record) |
Vincent Coubard |
638:c90ae1400bf2 | 1609 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1610 | uint16_t page; |
Vincent Coubard |
638:c90ae1400bf2 | 1611 | |
Vincent Coubard |
638:c90ae1400bf2 | 1612 | if (p_desc == NULL || p_record == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1613 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1614 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1615 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1616 | |
Vincent Coubard |
638:c90ae1400bf2 | 1617 | if (page_id_from_virtual_id(p_desc->vpage_id, &page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1618 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1619 | // Should not happen. |
Vincent Coubard |
638:c90ae1400bf2 | 1620 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1621 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1622 | |
Vincent Coubard |
638:c90ae1400bf2 | 1623 | // Seek the record if necessary. |
Vincent Coubard |
638:c90ae1400bf2 | 1624 | if (seek_record(p_desc) == NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1625 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1626 | if (header_is_valid((fds_header_t*)p_desc->p_rec)) |
Vincent Coubard |
638:c90ae1400bf2 | 1627 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1628 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 1629 | m_pages[page].records_open++; |
Vincent Coubard |
638:c90ae1400bf2 | 1630 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 1631 | |
Vincent Coubard |
638:c90ae1400bf2 | 1632 | p_record->header = *((fds_header_t*)p_desc->p_rec); |
Vincent Coubard |
638:c90ae1400bf2 | 1633 | p_record->p_data = (p_desc->p_rec + FDS_HEADER_SIZE); |
Vincent Coubard |
638:c90ae1400bf2 | 1634 | |
Vincent Coubard |
638:c90ae1400bf2 | 1635 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1636 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1637 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1638 | |
Vincent Coubard |
638:c90ae1400bf2 | 1639 | /** The record could not be found. |
Vincent Coubard |
638:c90ae1400bf2 | 1640 | * It either never existed or it has been cleared. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1641 | return NRF_ERROR_NOT_FOUND; |
Vincent Coubard |
638:c90ae1400bf2 | 1642 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1643 | |
Vincent Coubard |
638:c90ae1400bf2 | 1644 | |
Vincent Coubard |
638:c90ae1400bf2 | 1645 | ret_code_t fds_close(fds_record_desc_t const * const p_desc) |
Vincent Coubard |
638:c90ae1400bf2 | 1646 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1647 | uint16_t page; |
Vincent Coubard |
638:c90ae1400bf2 | 1648 | |
Vincent Coubard |
638:c90ae1400bf2 | 1649 | if (p_desc == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1650 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1651 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1652 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1653 | |
Vincent Coubard |
638:c90ae1400bf2 | 1654 | if (page_id_from_virtual_id(p_desc->vpage_id, &page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1655 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1656 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1657 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1658 | |
Vincent Coubard |
638:c90ae1400bf2 | 1659 | CRITICAL_SECTION_ENTER(); |
Vincent Coubard |
638:c90ae1400bf2 | 1660 | m_pages[page].records_open--; |
Vincent Coubard |
638:c90ae1400bf2 | 1661 | CRITICAL_SECTION_EXIT(); |
Vincent Coubard |
638:c90ae1400bf2 | 1662 | |
Vincent Coubard |
638:c90ae1400bf2 | 1663 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1664 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1665 | |
Vincent Coubard |
638:c90ae1400bf2 | 1666 | |
Vincent Coubard |
638:c90ae1400bf2 | 1667 | static ret_code_t write_enqueue(fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 1668 | fds_record_key_t key, |
Vincent Coubard |
638:c90ae1400bf2 | 1669 | uint8_t num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 1670 | fds_record_chunk_t chunks[], |
Vincent Coubard |
638:c90ae1400bf2 | 1671 | fds_write_token_t const * const p_tok, |
Vincent Coubard |
638:c90ae1400bf2 | 1672 | bool do_update) |
Vincent Coubard |
638:c90ae1400bf2 | 1673 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1674 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1675 | fds_cmd_t * p_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 1676 | fds_record_chunk_t * p_chunk = NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1677 | uint16_t vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1678 | uint16_t length_words = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1679 | uint8_t cmd_queue_elems; |
Vincent Coubard |
638:c90ae1400bf2 | 1680 | |
Vincent Coubard |
638:c90ae1400bf2 | 1681 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1682 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1683 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1684 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1685 | |
Vincent Coubard |
638:c90ae1400bf2 | 1686 | if ((key.type == FDS_TYPE_ID_INVALID) || |
Vincent Coubard |
638:c90ae1400bf2 | 1687 | (key.instance == FDS_INSTANCE_ID_INVALID)) |
Vincent Coubard |
638:c90ae1400bf2 | 1688 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1689 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1690 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1691 | |
Vincent Coubard |
638:c90ae1400bf2 | 1692 | if (!chunk_is_aligned(chunks, num_chunks)) |
Vincent Coubard |
638:c90ae1400bf2 | 1693 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1694 | return NRF_ERROR_INVALID_ADDR; |
Vincent Coubard |
638:c90ae1400bf2 | 1695 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1696 | |
Vincent Coubard |
638:c90ae1400bf2 | 1697 | cmd_queue_elems = do_update ? FDS_CMD_QUEUE_SIZE_UPDATE : FDS_CMD_QUEUE_SIZE_WRITE; |
Vincent Coubard |
638:c90ae1400bf2 | 1698 | |
Vincent Coubard |
638:c90ae1400bf2 | 1699 | // Reserve space on both queues, and obtain pointers to the first elements reserved. |
Vincent Coubard |
638:c90ae1400bf2 | 1700 | ret = queue_reserve(cmd_queue_elems, |
Vincent Coubard |
638:c90ae1400bf2 | 1701 | num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 1702 | &p_cmd, |
Vincent Coubard |
638:c90ae1400bf2 | 1703 | &p_chunk); |
Vincent Coubard |
638:c90ae1400bf2 | 1704 | |
Vincent Coubard |
638:c90ae1400bf2 | 1705 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1706 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1707 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1708 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1709 | |
Vincent Coubard |
638:c90ae1400bf2 | 1710 | // No space was previously reserved for this operation. |
Vincent Coubard |
638:c90ae1400bf2 | 1711 | if (p_tok == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1712 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1713 | // Compute the total length of the record. |
Vincent Coubard |
638:c90ae1400bf2 | 1714 | for (uint8_t i = 0; i < num_chunks; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 1715 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1716 | length_words += chunks[i].length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1717 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1718 | |
Vincent Coubard |
638:c90ae1400bf2 | 1719 | /** Find a page where we can write the data. Reserve the space necessary |
Vincent Coubard |
638:c90ae1400bf2 | 1720 | * to write the metadata as well. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1721 | ret = write_space_reserve(length_words, &vpage_id); |
Vincent Coubard |
638:c90ae1400bf2 | 1722 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1723 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1724 | // If there is no space available, cancel the queue reservation. |
Vincent Coubard |
638:c90ae1400bf2 | 1725 | queue_reserve_cancel(cmd_queue_elems, num_chunks); |
Vincent Coubard |
638:c90ae1400bf2 | 1726 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1727 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1728 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1729 | else |
Vincent Coubard |
638:c90ae1400bf2 | 1730 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1731 | length_words = p_tok->length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1732 | vpage_id = p_tok->vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1733 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1734 | |
Vincent Coubard |
638:c90ae1400bf2 | 1735 | // Initialize the command. |
Vincent Coubard |
638:c90ae1400bf2 | 1736 | p_cmd->id = do_update ? FDS_CMD_UPDATE : FDS_CMD_WRITE; |
Vincent Coubard |
638:c90ae1400bf2 | 1737 | p_cmd->op_code = FDS_OP_WRITE_TL; |
Vincent Coubard |
638:c90ae1400bf2 | 1738 | p_cmd->num_chunks = num_chunks; |
Vincent Coubard |
638:c90ae1400bf2 | 1739 | p_cmd->chunk_offset = FDS_WRITE_OFFSET_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1740 | p_cmd->vpage_id = vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1741 | |
Vincent Coubard |
638:c90ae1400bf2 | 1742 | // Fill in the header information. |
Vincent Coubard |
638:c90ae1400bf2 | 1743 | p_cmd->record_header.id = record_id_new(); |
Vincent Coubard |
638:c90ae1400bf2 | 1744 | p_cmd->record_header.tl.type = key.type; |
Vincent Coubard |
638:c90ae1400bf2 | 1745 | p_cmd->record_header.tl.length_words = length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1746 | p_cmd->record_header.ic.instance = key.instance; |
Vincent Coubard |
638:c90ae1400bf2 | 1747 | p_cmd->record_header.ic.checksum = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1748 | |
Vincent Coubard |
638:c90ae1400bf2 | 1749 | // Buffer the record chunks in the queue. |
Vincent Coubard |
638:c90ae1400bf2 | 1750 | for (uint8_t i = 0; i < num_chunks; i++) |
Vincent Coubard |
638:c90ae1400bf2 | 1751 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1752 | p_chunk->p_data = chunks[i].p_data; |
Vincent Coubard |
638:c90ae1400bf2 | 1753 | p_chunk->length_words = chunks[i].length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1754 | chunk_queue_next(&p_chunk); |
Vincent Coubard |
638:c90ae1400bf2 | 1755 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1756 | |
Vincent Coubard |
638:c90ae1400bf2 | 1757 | if (do_update) |
Vincent Coubard |
638:c90ae1400bf2 | 1758 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1759 | // Clear |
Vincent Coubard |
638:c90ae1400bf2 | 1760 | cmd_queue_next(&p_cmd); |
Vincent Coubard |
638:c90ae1400bf2 | 1761 | p_cmd->id = FDS_CMD_CLEAR; |
Vincent Coubard |
638:c90ae1400bf2 | 1762 | p_cmd->op_code = FDS_OP_CLEAR_TL; |
Vincent Coubard |
638:c90ae1400bf2 | 1763 | |
Vincent Coubard |
638:c90ae1400bf2 | 1764 | p_cmd->vpage_id = p_desc->vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1765 | p_cmd->record_header.id = p_desc->record_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1766 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1767 | |
Vincent Coubard |
638:c90ae1400bf2 | 1768 | // Initialize the record descriptor, if provided. |
Vincent Coubard |
638:c90ae1400bf2 | 1769 | if (p_desc != NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1770 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1771 | p_desc->vpage_id = vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1772 | // Don't invoke record_id_new() again. |
Vincent Coubard |
638:c90ae1400bf2 | 1773 | p_desc->record_id = p_cmd->record_header.id; |
Vincent Coubard |
638:c90ae1400bf2 | 1774 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1775 | |
Vincent Coubard |
638:c90ae1400bf2 | 1776 | return cmd_queue_process_start(); |
Vincent Coubard |
638:c90ae1400bf2 | 1777 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1778 | |
Vincent Coubard |
638:c90ae1400bf2 | 1779 | |
Vincent Coubard |
638:c90ae1400bf2 | 1780 | ret_code_t fds_reserve(fds_write_token_t * const p_tok, uint16_t length_words) |
Vincent Coubard |
638:c90ae1400bf2 | 1781 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1782 | uint16_t vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1783 | |
Vincent Coubard |
638:c90ae1400bf2 | 1784 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1785 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1786 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1787 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1788 | |
Vincent Coubard |
638:c90ae1400bf2 | 1789 | if (p_tok == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1790 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1791 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1792 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1793 | |
Vincent Coubard |
638:c90ae1400bf2 | 1794 | // Reserve space on the page. write_space_reserve() accounts for the header. |
Vincent Coubard |
638:c90ae1400bf2 | 1795 | if (write_space_reserve(length_words, &vpage_id) == NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1796 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1797 | p_tok->vpage_id = vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1798 | p_tok->length_words = length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1799 | |
Vincent Coubard |
638:c90ae1400bf2 | 1800 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1801 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1802 | |
Vincent Coubard |
638:c90ae1400bf2 | 1803 | return NRF_ERROR_NO_MEM; |
Vincent Coubard |
638:c90ae1400bf2 | 1804 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1805 | |
Vincent Coubard |
638:c90ae1400bf2 | 1806 | |
Vincent Coubard |
638:c90ae1400bf2 | 1807 | ret_code_t fds_reserve_cancel(fds_write_token_t * const p_tok) |
Vincent Coubard |
638:c90ae1400bf2 | 1808 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1809 | fds_page_t * p_page; |
Vincent Coubard |
638:c90ae1400bf2 | 1810 | |
Vincent Coubard |
638:c90ae1400bf2 | 1811 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1812 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1813 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1814 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1815 | |
Vincent Coubard |
638:c90ae1400bf2 | 1816 | if (p_tok == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1817 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1818 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1819 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1820 | |
Vincent Coubard |
638:c90ae1400bf2 | 1821 | if (page_from_virtual_id(p_tok->vpage_id, &p_page) != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1822 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1823 | // Could not find the virtual page. This shouldn't happen. |
Vincent Coubard |
638:c90ae1400bf2 | 1824 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1825 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1826 | |
Vincent Coubard |
638:c90ae1400bf2 | 1827 | if ((p_page->words_reserved - p_tok->length_words) < 0) |
Vincent Coubard |
638:c90ae1400bf2 | 1828 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1829 | /** We are trying to cancel a reservation for more words than how many are |
Vincent Coubard |
638:c90ae1400bf2 | 1830 | * currently reserved on the page. This is shouldn't happen. */ |
Vincent Coubard |
638:c90ae1400bf2 | 1831 | return NRF_ERROR_INVALID_DATA; |
Vincent Coubard |
638:c90ae1400bf2 | 1832 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1833 | |
Vincent Coubard |
638:c90ae1400bf2 | 1834 | // Free the space which had been reserved. |
Vincent Coubard |
638:c90ae1400bf2 | 1835 | p_page->words_reserved -= p_tok->length_words; |
Vincent Coubard |
638:c90ae1400bf2 | 1836 | |
Vincent Coubard |
638:c90ae1400bf2 | 1837 | // Clean the token. |
Vincent Coubard |
638:c90ae1400bf2 | 1838 | p_tok->vpage_id = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1839 | p_tok->length_words = 0; |
Vincent Coubard |
638:c90ae1400bf2 | 1840 | |
Vincent Coubard |
638:c90ae1400bf2 | 1841 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 1842 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1843 | |
Vincent Coubard |
638:c90ae1400bf2 | 1844 | |
Vincent Coubard |
638:c90ae1400bf2 | 1845 | ret_code_t fds_write(fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 1846 | fds_record_key_t key, |
Vincent Coubard |
638:c90ae1400bf2 | 1847 | uint8_t num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 1848 | fds_record_chunk_t chunks[]) |
Vincent Coubard |
638:c90ae1400bf2 | 1849 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1850 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1851 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1852 | ret = write_enqueue(p_desc, key, num_chunks, chunks, NULL, false /*not an update*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1853 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1854 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1855 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1856 | |
Vincent Coubard |
638:c90ae1400bf2 | 1857 | |
Vincent Coubard |
638:c90ae1400bf2 | 1858 | ret_code_t fds_write_reserved(fds_write_token_t const * const p_tok, |
Vincent Coubard |
638:c90ae1400bf2 | 1859 | fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 1860 | fds_record_key_t key, |
Vincent Coubard |
638:c90ae1400bf2 | 1861 | uint8_t num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 1862 | fds_record_chunk_t chunks[]) |
Vincent Coubard |
638:c90ae1400bf2 | 1863 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1864 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1865 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1866 | ret = write_enqueue(p_desc, key, num_chunks, chunks, p_tok, false /*not an update*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1867 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1868 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1869 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1870 | |
Vincent Coubard |
638:c90ae1400bf2 | 1871 | |
Vincent Coubard |
638:c90ae1400bf2 | 1872 | static ret_code_t clear_enqueue(fds_record_desc_t * const p_desc) |
Vincent Coubard |
638:c90ae1400bf2 | 1873 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1874 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1875 | fds_cmd_t * p_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 1876 | |
Vincent Coubard |
638:c90ae1400bf2 | 1877 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1878 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1879 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1880 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1881 | |
Vincent Coubard |
638:c90ae1400bf2 | 1882 | if (p_desc == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 1883 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1884 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 1885 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1886 | |
Vincent Coubard |
638:c90ae1400bf2 | 1887 | ret = queue_reserve(FDS_CMD_QUEUE_SIZE_CLEAR, 0, &p_cmd, NULL); |
Vincent Coubard |
638:c90ae1400bf2 | 1888 | |
Vincent Coubard |
638:c90ae1400bf2 | 1889 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1890 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1891 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1892 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1893 | |
Vincent Coubard |
638:c90ae1400bf2 | 1894 | // Initialize the command. |
Vincent Coubard |
638:c90ae1400bf2 | 1895 | p_cmd->id = FDS_CMD_CLEAR; |
Vincent Coubard |
638:c90ae1400bf2 | 1896 | p_cmd->op_code = FDS_OP_CLEAR_TL; |
Vincent Coubard |
638:c90ae1400bf2 | 1897 | |
Vincent Coubard |
638:c90ae1400bf2 | 1898 | p_cmd->record_header.id = p_desc->record_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1899 | p_cmd->vpage_id = p_desc->vpage_id; |
Vincent Coubard |
638:c90ae1400bf2 | 1900 | |
Vincent Coubard |
638:c90ae1400bf2 | 1901 | return cmd_queue_process_start(); |
Vincent Coubard |
638:c90ae1400bf2 | 1902 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1903 | |
Vincent Coubard |
638:c90ae1400bf2 | 1904 | |
Vincent Coubard |
638:c90ae1400bf2 | 1905 | ret_code_t fds_clear(fds_record_desc_t * const p_desc) |
Vincent Coubard |
638:c90ae1400bf2 | 1906 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1907 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1908 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1909 | ret = clear_enqueue(p_desc); |
Vincent Coubard |
638:c90ae1400bf2 | 1910 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1911 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1912 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1913 | |
Vincent Coubard |
638:c90ae1400bf2 | 1914 | |
Vincent Coubard |
638:c90ae1400bf2 | 1915 | static ret_code_t clear_by_instance_enqueue(fds_instance_id_t instance) |
Vincent Coubard |
638:c90ae1400bf2 | 1916 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1917 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1918 | fds_cmd_t * p_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 1919 | |
Vincent Coubard |
638:c90ae1400bf2 | 1920 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1921 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1922 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1923 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1924 | |
Vincent Coubard |
638:c90ae1400bf2 | 1925 | ret = queue_reserve(FDS_CMD_QUEUE_SIZE_CLEAR, 0, &p_cmd, NULL); |
Vincent Coubard |
638:c90ae1400bf2 | 1926 | |
Vincent Coubard |
638:c90ae1400bf2 | 1927 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1928 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1929 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1930 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1931 | |
Vincent Coubard |
638:c90ae1400bf2 | 1932 | p_cmd->id = FDS_CMD_CLEAR_INST; |
Vincent Coubard |
638:c90ae1400bf2 | 1933 | p_cmd->op_code = FDS_OP_CLEAR_INSTANCE; |
Vincent Coubard |
638:c90ae1400bf2 | 1934 | |
Vincent Coubard |
638:c90ae1400bf2 | 1935 | p_cmd->record_header.ic.instance = instance; |
Vincent Coubard |
638:c90ae1400bf2 | 1936 | |
Vincent Coubard |
638:c90ae1400bf2 | 1937 | return cmd_queue_process_start(); |
Vincent Coubard |
638:c90ae1400bf2 | 1938 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1939 | |
Vincent Coubard |
638:c90ae1400bf2 | 1940 | ret_code_t fds_clear_by_instance(fds_instance_id_t instance) |
Vincent Coubard |
638:c90ae1400bf2 | 1941 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1942 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1943 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1944 | ret = clear_by_instance_enqueue(instance); |
Vincent Coubard |
638:c90ae1400bf2 | 1945 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1946 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1947 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1948 | |
Vincent Coubard |
638:c90ae1400bf2 | 1949 | |
Vincent Coubard |
638:c90ae1400bf2 | 1950 | ret_code_t fds_update(fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 1951 | fds_record_key_t key, |
Vincent Coubard |
638:c90ae1400bf2 | 1952 | uint8_t num_chunks, |
Vincent Coubard |
638:c90ae1400bf2 | 1953 | fds_record_chunk_t chunks[]) |
Vincent Coubard |
638:c90ae1400bf2 | 1954 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1955 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1956 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1957 | ret = write_enqueue(p_desc, key, num_chunks, chunks, NULL, true /*update*/); |
Vincent Coubard |
638:c90ae1400bf2 | 1958 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1959 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1960 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1961 | |
Vincent Coubard |
638:c90ae1400bf2 | 1962 | |
Vincent Coubard |
638:c90ae1400bf2 | 1963 | static ret_code_t gc_enqueue() |
Vincent Coubard |
638:c90ae1400bf2 | 1964 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1965 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1966 | fds_cmd_t * p_cmd; |
Vincent Coubard |
638:c90ae1400bf2 | 1967 | |
Vincent Coubard |
638:c90ae1400bf2 | 1968 | if (!flag_is_set(FDS_FLAG_INITIALIZED)) |
Vincent Coubard |
638:c90ae1400bf2 | 1969 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1970 | return NRF_ERROR_INVALID_STATE; |
Vincent Coubard |
638:c90ae1400bf2 | 1971 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1972 | |
Vincent Coubard |
638:c90ae1400bf2 | 1973 | ret = queue_reserve(FDS_CMD_QUEUE_SIZE_GC, 0, &p_cmd, NULL); |
Vincent Coubard |
638:c90ae1400bf2 | 1974 | if (ret != NRF_SUCCESS) |
Vincent Coubard |
638:c90ae1400bf2 | 1975 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1976 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1977 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1978 | |
Vincent Coubard |
638:c90ae1400bf2 | 1979 | p_cmd->id = FDS_CMD_GC; |
Vincent Coubard |
638:c90ae1400bf2 | 1980 | |
Vincent Coubard |
638:c90ae1400bf2 | 1981 | // Set compression parameters. |
Vincent Coubard |
638:c90ae1400bf2 | 1982 | m_gc.state = BEGIN; |
Vincent Coubard |
638:c90ae1400bf2 | 1983 | |
Vincent Coubard |
638:c90ae1400bf2 | 1984 | return cmd_queue_process_start(); |
Vincent Coubard |
638:c90ae1400bf2 | 1985 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1986 | |
Vincent Coubard |
638:c90ae1400bf2 | 1987 | |
Vincent Coubard |
638:c90ae1400bf2 | 1988 | ret_code_t fds_gc() |
Vincent Coubard |
638:c90ae1400bf2 | 1989 | { |
Vincent Coubard |
638:c90ae1400bf2 | 1990 | ret_code_t ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1991 | atomic_counter_inc(); |
Vincent Coubard |
638:c90ae1400bf2 | 1992 | ret = gc_enqueue(); |
Vincent Coubard |
638:c90ae1400bf2 | 1993 | atomic_counter_dec(); |
Vincent Coubard |
638:c90ae1400bf2 | 1994 | return ret; |
Vincent Coubard |
638:c90ae1400bf2 | 1995 | } |
Vincent Coubard |
638:c90ae1400bf2 | 1996 | |
Vincent Coubard |
638:c90ae1400bf2 | 1997 | |
Vincent Coubard |
638:c90ae1400bf2 | 1998 | ret_code_t fds_find(fds_type_id_t type, |
Vincent Coubard |
638:c90ae1400bf2 | 1999 | fds_instance_id_t instance, |
Vincent Coubard |
638:c90ae1400bf2 | 2000 | fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 2001 | fds_find_token_t * const p_token) |
Vincent Coubard |
638:c90ae1400bf2 | 2002 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2003 | if (p_desc == NULL || p_token == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 2004 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2005 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 2006 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2007 | |
Vincent Coubard |
638:c90ae1400bf2 | 2008 | return find_record(&type, &instance, p_desc, p_token); |
Vincent Coubard |
638:c90ae1400bf2 | 2009 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2010 | |
Vincent Coubard |
638:c90ae1400bf2 | 2011 | |
Vincent Coubard |
638:c90ae1400bf2 | 2012 | ret_code_t fds_find_by_type(fds_type_id_t type, |
Vincent Coubard |
638:c90ae1400bf2 | 2013 | fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 2014 | fds_find_token_t * const p_token) |
Vincent Coubard |
638:c90ae1400bf2 | 2015 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2016 | if (p_desc == NULL || p_token == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 2017 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2018 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 2019 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2020 | |
Vincent Coubard |
638:c90ae1400bf2 | 2021 | return find_record(&type, NULL, p_desc, p_token); |
Vincent Coubard |
638:c90ae1400bf2 | 2022 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2023 | |
Vincent Coubard |
638:c90ae1400bf2 | 2024 | |
Vincent Coubard |
638:c90ae1400bf2 | 2025 | ret_code_t fds_find_by_instance(fds_instance_id_t instance, |
Vincent Coubard |
638:c90ae1400bf2 | 2026 | fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 2027 | fds_find_token_t * const p_token) |
Vincent Coubard |
638:c90ae1400bf2 | 2028 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2029 | if (p_desc == NULL || p_token == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 2030 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2031 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 2032 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2033 | |
Vincent Coubard |
638:c90ae1400bf2 | 2034 | return find_record(NULL, &instance, p_desc, p_token); |
Vincent Coubard |
638:c90ae1400bf2 | 2035 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2036 | |
Vincent Coubard |
638:c90ae1400bf2 | 2037 | |
Vincent Coubard |
638:c90ae1400bf2 | 2038 | ret_code_t fds_register(fds_cb_t cb) |
Vincent Coubard |
638:c90ae1400bf2 | 2039 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2040 | if (m_users == FDS_MAX_USERS) |
Vincent Coubard |
638:c90ae1400bf2 | 2041 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2042 | return NRF_ERROR_NO_MEM; |
Vincent Coubard |
638:c90ae1400bf2 | 2043 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2044 | |
Vincent Coubard |
638:c90ae1400bf2 | 2045 | m_cb_table[m_users] = cb; |
Vincent Coubard |
638:c90ae1400bf2 | 2046 | m_users++; |
Vincent Coubard |
638:c90ae1400bf2 | 2047 | |
Vincent Coubard |
638:c90ae1400bf2 | 2048 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 2049 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2050 | |
Vincent Coubard |
638:c90ae1400bf2 | 2051 | |
Vincent Coubard |
638:c90ae1400bf2 | 2052 | bool fds_descriptor_match(fds_record_desc_t const * const p_desc1, |
Vincent Coubard |
638:c90ae1400bf2 | 2053 | fds_record_desc_t const * const p_desc2) |
Vincent Coubard |
638:c90ae1400bf2 | 2054 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2055 | if ((p_desc1 == NULL) || (p_desc2 == NULL)) |
Vincent Coubard |
638:c90ae1400bf2 | 2056 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2057 | return false; |
Vincent Coubard |
638:c90ae1400bf2 | 2058 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2059 | |
Vincent Coubard |
638:c90ae1400bf2 | 2060 | return (p_desc1->record_id == p_desc2->record_id); |
Vincent Coubard |
638:c90ae1400bf2 | 2061 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2062 | |
Vincent Coubard |
638:c90ae1400bf2 | 2063 | |
Vincent Coubard |
638:c90ae1400bf2 | 2064 | ret_code_t fds_descriptor_from_rec_id(fds_record_desc_t * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 2065 | fds_record_id_t record_id) |
Vincent Coubard |
638:c90ae1400bf2 | 2066 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2067 | if (p_desc == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 2068 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2069 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 2070 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2071 | |
Vincent Coubard |
638:c90ae1400bf2 | 2072 | p_desc->record_id = record_id; |
Vincent Coubard |
638:c90ae1400bf2 | 2073 | p_desc->vpage_id = FDS_VPAGE_ID_UNKNOWN; |
Vincent Coubard |
638:c90ae1400bf2 | 2074 | |
Vincent Coubard |
638:c90ae1400bf2 | 2075 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 2076 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2077 | |
Vincent Coubard |
638:c90ae1400bf2 | 2078 | ret_code_t fds_record_id_from_desc(fds_record_desc_t const * const p_desc, |
Vincent Coubard |
638:c90ae1400bf2 | 2079 | fds_record_id_t * const p_record_id) |
Vincent Coubard |
638:c90ae1400bf2 | 2080 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2081 | if (p_desc == NULL || p_record_id == NULL) |
Vincent Coubard |
638:c90ae1400bf2 | 2082 | { |
Vincent Coubard |
638:c90ae1400bf2 | 2083 | return NRF_ERROR_NULL; |
Vincent Coubard |
638:c90ae1400bf2 | 2084 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2085 | |
Vincent Coubard |
638:c90ae1400bf2 | 2086 | *p_record_id = p_desc->record_id; |
Vincent Coubard |
638:c90ae1400bf2 | 2087 | |
Vincent Coubard |
638:c90ae1400bf2 | 2088 | return NRF_SUCCESS; |
Vincent Coubard |
638:c90ae1400bf2 | 2089 | } |
Vincent Coubard |
638:c90ae1400bf2 | 2090 |