mirror of
https://github.com/espressif/esp-idf.git
synced 2025-10-31 04:59:55 +00:00
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <sys/lock.h>
|
|
#include "sdkconfig.h"
|
|
#if CONFIG_PARLIO_ENABLE_DEBUG_LOG
|
|
// The local log level must be defined before including esp_log.h
|
|
// Set the maximum log level for this source file
|
|
#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
|
|
#endif
|
|
#include "esp_log.h"
|
|
#include "esp_check.h"
|
|
#include "clk_ctrl_os.h"
|
|
#include "soc/rtc.h"
|
|
#include "soc/parlio_periph.h"
|
|
#include "hal/parlio_ll.h"
|
|
#include "esp_private/esp_clk.h"
|
|
#include "parlio_private.h"
|
|
|
|
static const char *TAG = "parlio";
|
|
|
|
typedef struct parlio_platform_t {
|
|
_lock_t mutex; // platform level mutex lock
|
|
parlio_group_t *groups[SOC_PARLIO_GROUPS]; // array of parallel IO group instances
|
|
int group_ref_counts[SOC_PARLIO_GROUPS]; // reference count used to protect group install/uninstall
|
|
} parlio_platform_t;
|
|
|
|
static parlio_platform_t s_platform; // singleton platform
|
|
|
|
parlio_group_t *parlio_acquire_group_handle(int group_id)
|
|
{
|
|
bool new_group = false;
|
|
parlio_group_t *group = NULL;
|
|
|
|
// prevent install parlio group concurrently
|
|
_lock_acquire(&s_platform.mutex);
|
|
if (!s_platform.groups[group_id]) {
|
|
group = heap_caps_calloc(1, sizeof(parlio_group_t), PARLIO_MEM_ALLOC_CAPS);
|
|
if (group) {
|
|
new_group = true;
|
|
s_platform.groups[group_id] = group;
|
|
PARLIO_RCC_ATOMIC() {
|
|
parlio_ll_enable_bus_clock(group_id, true);
|
|
parlio_ll_reset_register(group_id);
|
|
}
|
|
// hal layer initialize
|
|
parlio_hal_init(&group->hal);
|
|
}
|
|
} else { // group already install
|
|
group = s_platform.groups[group_id];
|
|
}
|
|
if (group) {
|
|
// someone acquired the group handle means we have a new object that refer to this group
|
|
s_platform.group_ref_counts[group_id]++;
|
|
}
|
|
_lock_release(&s_platform.mutex);
|
|
|
|
if (new_group) {
|
|
portMUX_INITIALIZE(&group->spinlock);
|
|
group->group_id = group_id;
|
|
ESP_LOGD(TAG, "new group(%d) at %p", group_id, group);
|
|
}
|
|
return group;
|
|
}
|
|
|
|
void parlio_release_group_handle(parlio_group_t *group)
|
|
{
|
|
int group_id = group->group_id;
|
|
bool do_deinitialize = false;
|
|
|
|
_lock_acquire(&s_platform.mutex);
|
|
s_platform.group_ref_counts[group_id]--;
|
|
if (s_platform.group_ref_counts[group_id] == 0) {
|
|
do_deinitialize = true;
|
|
s_platform.groups[group_id] = NULL;
|
|
// hal layer deinitialize
|
|
parlio_hal_deinit(&group->hal);
|
|
PARLIO_RCC_ATOMIC() {
|
|
parlio_ll_enable_bus_clock(group_id, false);
|
|
}
|
|
}
|
|
_lock_release(&s_platform.mutex);
|
|
|
|
if (do_deinitialize) {
|
|
free(group);
|
|
ESP_LOGD(TAG, "del group(%d)", group_id);
|
|
}
|
|
}
|