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lib: lte_link_control: refactor into modules
Divides the LTE Link Controller into modules. Signed-off-by: Mirko Covizzi <mirko.covizzi@nordicsemi.no>
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| Original file line number | Diff line number | Diff line change |
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@@ -6,6 +6,8 @@ | |
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| menuconfig LOCATION | ||
| bool "Location" | ||
| select LTE_LC_PSM | ||
| select LTE_LC_XMODEMSLEEP | ||
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| if LOCATION | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| # | ||
| # Copyright (c) 2024 Nordic Semiconductor ASA | ||
| # | ||
| # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause | ||
| # | ||
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| zephyr_library_sources(event_handler_list.c) | ||
| zephyr_library_sources(helpers.c) | ||
| zephyr_library_sources(work_q.c) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * Copyright (c) 2024 Nordic Semiconductor ASA | ||
| * | ||
| * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause | ||
| */ | ||
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| #include <string.h> | ||
| #include <zephyr/kernel.h> | ||
| #include <zephyr/logging/log.h> | ||
| #include <modem/lte_lc.h> | ||
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| #include <common/event_handler_list.h> | ||
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| LOG_MODULE_DECLARE(lte_lc, CONFIG_LTE_LINK_CONTROL_LOG_LEVEL); | ||
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| static K_MUTEX_DEFINE(list_mtx); | ||
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| /**@brief List element for event handler list. */ | ||
| struct event_handler { | ||
| sys_snode_t node; | ||
| lte_lc_evt_handler_t handler; | ||
| }; | ||
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| static sys_slist_t handler_list; | ||
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| /** | ||
| * @brief Find the handler from the event handler list. | ||
| * | ||
| * @return The node or NULL if not found and its previous node in @p prev_out. | ||
| */ | ||
| static struct event_handler *event_handler_list_node_find(struct event_handler **prev_out, | ||
| lte_lc_evt_handler_t handler) | ||
| { | ||
| struct event_handler *prev = NULL, *curr; | ||
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| SYS_SLIST_FOR_EACH_CONTAINER(&handler_list, curr, node) { | ||
| if (curr->handler == handler) { | ||
| *prev_out = prev; | ||
| return curr; | ||
| } | ||
| prev = curr; | ||
| } | ||
| return NULL; | ||
| } | ||
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| /**@brief Add the handler in the event handler list if not already present. */ | ||
| int event_handler_list_handler_append(lte_lc_evt_handler_t handler) | ||
| { | ||
| struct event_handler *to_ins; | ||
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| k_mutex_lock(&list_mtx, K_FOREVER); | ||
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| /* Check if handler is already registered. */ | ||
| if (event_handler_list_node_find(&to_ins, handler) != NULL) { | ||
| LOG_DBG("Handler already registered. Nothing to do"); | ||
| k_mutex_unlock(&list_mtx); | ||
| return 0; | ||
| } | ||
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| /* Allocate memory and fill. */ | ||
| to_ins = (struct event_handler *)k_malloc(sizeof(struct event_handler)); | ||
| if (to_ins == NULL) { | ||
| k_mutex_unlock(&list_mtx); | ||
| return -ENOBUFS; | ||
| } | ||
| memset(to_ins, 0, sizeof(struct event_handler)); | ||
| to_ins->handler = handler; | ||
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| /* Insert handler in the list. */ | ||
| sys_slist_append(&handler_list, &to_ins->node); | ||
| k_mutex_unlock(&list_mtx); | ||
| return 0; | ||
| } | ||
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| /**@brief Remove the handler from the event handler list if registered. */ | ||
| int event_handler_list_handler_remove(lte_lc_evt_handler_t handler) | ||
| { | ||
| struct event_handler *curr, *prev = NULL; | ||
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| k_mutex_lock(&list_mtx, K_FOREVER); | ||
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| /* Check if the handler is registered before removing it. */ | ||
| curr = event_handler_list_node_find(&prev, handler); | ||
| if (curr == NULL) { | ||
| LOG_WRN("Handler not registered. Nothing to do"); | ||
| k_mutex_unlock(&list_mtx); | ||
| return 0; | ||
| } | ||
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| /* Remove the handler from the list. */ | ||
| sys_slist_remove(&handler_list, &prev->node, &curr->node); | ||
| k_free(curr); | ||
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| k_mutex_unlock(&list_mtx); | ||
| return 0; | ||
| } | ||
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| /**@brief dispatch events. */ | ||
| void event_handler_list_dispatch(const struct lte_lc_evt *const evt) | ||
| { | ||
| struct event_handler *curr, *tmp; | ||
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| if (event_handler_list_is_empty()) { | ||
| return; | ||
| } | ||
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| k_mutex_lock(&list_mtx, K_FOREVER); | ||
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| /* Dispatch events to all registered handlers */ | ||
| LOG_DBG("Dispatching event: type=%d", evt->type); | ||
| SYS_SLIST_FOR_EACH_CONTAINER_SAFE(&handler_list, curr, tmp, node) { | ||
| LOG_DBG(" - handler=0x%08X", (uint32_t)curr->handler); | ||
| curr->handler(evt); | ||
| } | ||
| LOG_DBG("Done"); | ||
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| k_mutex_unlock(&list_mtx); | ||
| } | ||
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| /**@brief Test if the handler list is empty. */ | ||
| bool event_handler_list_is_empty(void) | ||
| { | ||
| return sys_slist_is_empty(&handler_list); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| /* | ||
| * Copyright (c) 2024 Nordic Semiconductor ASA | ||
| * | ||
| * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause | ||
| */ | ||
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| #include <stdlib.h> | ||
| #include <zephyr/logging/log.h> | ||
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| #include <common/helpers.h> | ||
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| LOG_MODULE_DECLARE(lte_lc, CONFIG_LTE_LINK_CONTROL_LOG_LEVEL); | ||
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| int string_to_int(const char *str_buf, int base, int *output) | ||
| { | ||
| int temp; | ||
| char *end_ptr; | ||
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| __ASSERT_NO_MSG(str_buf != NULL); | ||
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| errno = 0; | ||
| temp = strtol(str_buf, &end_ptr, base); | ||
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| if (end_ptr == str_buf || *end_ptr != '\0' || | ||
| ((temp == LONG_MAX || temp == LONG_MIN) && errno == ERANGE)) { | ||
| return -ENODATA; | ||
| } | ||
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| *output = temp; | ||
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| return 0; | ||
| } | ||
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| int string_param_to_int(struct at_parser *parser, size_t idx, int *output, int base) | ||
| { | ||
| int err; | ||
| char str_buf[16]; | ||
| size_t len = sizeof(str_buf); | ||
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| __ASSERT_NO_MSG(parser != NULL); | ||
| __ASSERT_NO_MSG(output != NULL); | ||
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| err = at_parser_string_get(parser, idx, str_buf, &len); | ||
| if (err) { | ||
| return err; | ||
| } | ||
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| if (string_to_int(str_buf, base, output)) { | ||
| return -ENODATA; | ||
| } | ||
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| return 0; | ||
| } | ||
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| int plmn_param_string_to_mcc_mnc(struct at_parser *parser, size_t idx, int *mcc, int *mnc) | ||
| { | ||
| int err; | ||
| char str_buf[7]; | ||
| size_t len = sizeof(str_buf); | ||
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| err = at_parser_string_get(parser, idx, str_buf, &len); | ||
| if (err) { | ||
| LOG_ERR("Could not get PLMN, error: %d", err); | ||
| return err; | ||
| } | ||
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| str_buf[len] = '\0'; | ||
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| /* Read MNC and store as integer. The MNC starts as the fourth character | ||
| * in the string, following three characters long MCC. | ||
| */ | ||
| err = string_to_int(&str_buf[3], 10, mnc); | ||
| if (err) { | ||
| LOG_ERR("Could not get MNC, error: %d", err); | ||
| return err; | ||
| } | ||
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| /* NUL-terminate MCC, read and store it. */ | ||
| str_buf[3] = '\0'; | ||
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| err = string_to_int(str_buf, 10, mcc); | ||
| if (err) { | ||
| LOG_ERR("Could not get MCC, error: %d", err); | ||
| return err; | ||
| } | ||
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| return 0; | ||
| } |
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