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feat(ana_cmpr): supported etm in analog comparator example

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This commit is contained in:
laokaiyao
2023-09-25 19:57:34 +08:00
parent bf2a5653a9
commit ff7a11e539
44 changed files with 796 additions and 267 deletions
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components/driver/analog_comparator/ana_cmpr.c
+65 -19
View File
@@ -25,6 +25,7 @@
#include "soc/ana_cmpr_periph.h"
#include "hal/ana_cmpr_ll.h"
#include "driver/ana_cmpr.h"
#include "driver/gpio.h"
#include "esp_private/io_mux.h"
#include "esp_private/esp_clk.h"
@@ -36,6 +37,7 @@ struct ana_cmpr_t {
ana_cmpr_event_callbacks_t cbs; /*!< The callback group that set by user */
intr_handle_t intr_handle; /*!< Interrupt handle */
uint32_t intr_mask; /*!< Interrupt mask */
int intr_priority; /*!< Interrupt priority */
void *user_data; /*!< User data that passed to the callbacks */
uint32_t src_clk_freq_hz; /*!< Source clock frequency of the Analog Comparator unit */
esp_pm_lock_handle_t pm_lock; /*!< The Power Management lock that used to avoid unexpected power down of the clock domain */
@@ -44,16 +46,16 @@ struct ana_cmpr_t {
/* Helper macros */
#define ANA_CMPR_NULL_POINTER_CHECK(p) ESP_RETURN_ON_FALSE((p), ESP_ERR_INVALID_ARG, TAG, "input parameter '"#p"' is NULL")
#define ANA_CMPR_NULL_POINTER_CHECK_ISR(p) ESP_RETURN_ON_FALSE_ISR((p), ESP_ERR_INVALID_ARG, TAG, "input parameter '"#p"' is NULL")
#define ANA_CMPR_UNIT_CHECK(unit) ESP_RETURN_ON_FALSE((unit) >= ANA_CMPR_UNIT_0 && (unit) < SOC_ANA_CMPR_NUM, \
#define ANA_CMPR_UNIT_CHECK(unit) ESP_RETURN_ON_FALSE((unit) >= 0 && (unit) < SOC_ANA_CMPR_NUM, \
ESP_ERR_INVALID_ARG, TAG, "invalid uint number");
/* Memory allocation caps which decide the section that memory supposed to allocate */
#if CONFIG_ANA_CMPR_ISR_IRAM_SAFE
#define ANA_CMPR_MEM_ALLOC_CAPS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
#define ANA_CMPR_INTR_FLAG (ESP_INTR_FLAG_LOWMED | ESP_INTR_FLAG_SHARED | ESP_INTR_FLAG_IRAM) // Shared with GPIO
#define ANA_CMPR_INTR_FLAG (ESP_INTR_FLAG_IRAM)
#else
#define ANA_CMPR_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
#define ANA_CMPR_INTR_FLAG (ESP_INTR_FLAG_LOWMED | ESP_INTR_FLAG_SHARED) // Shared with GPIO
#define ANA_CMPR_INTR_FLAG (0)
#endif
/* Driver tag */
@@ -71,20 +73,20 @@ static void IRAM_ATTR s_ana_cmpr_default_intr_handler(void *usr_data)
{
ana_cmpr_handle_t cmpr_handle = (ana_cmpr_handle_t)usr_data;
bool need_yield = false;
ana_cmpr_cross_event_data_t evt_data;
ana_cmpr_cross_event_data_t evt_data = {.cross_type = ANA_CMPR_CROSS_ANY};
/* Get and clear the interrupt status */
uint32_t status = analog_cmpr_ll_get_intr_status(cmpr_handle->dev);
analog_cmpr_ll_clear_intr(cmpr_handle->dev, status);
/* Call the user callback function if it is specified and the corresponding event triggers*/
if (cmpr_handle->cbs.on_cross && (status & cmpr_handle->intr_mask)) {
#if SOC_ANA_CMPR_SUPPORT_MULTI_INTR
#if SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
if (status & ANALOG_CMPR_LL_POS_CROSS_MASK(cmpr_handle->unit)) {
evt_data.cross_type = ANA_CMPR_CROSS_POS;
} else if (status & ANALOG_CMPR_LL_NEG_CROSS_MASK(cmpr_handle->unit)) {
evt_data.cross_type = ANA_CMPR_CROSS_NEG;
}
#endif // SOC_ANA_CMPR_SUPPORT_MULTI_INTR
#endif // SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
need_yield = cmpr_handle->cbs.on_cross(cmpr_handle, &evt_data, cmpr_handle->user_data);
}
if (need_yield) {
@@ -92,6 +94,22 @@ static void IRAM_ATTR s_ana_cmpr_default_intr_handler(void *usr_data)
}
}
static esp_err_t s_ana_cmpr_init_gpio(ana_cmpr_handle_t cmpr, bool is_external_ref)
{
uint64_t pin_mask = BIT64(ana_cmpr_periph[cmpr->unit].src_gpio);
if (is_external_ref) {
pin_mask |= BIT64(ana_cmpr_periph[cmpr->unit].ext_ref_gpio);
}
gpio_config_t ana_cmpr_gpio_cfg = {
.pin_bit_mask = pin_mask,
.mode = GPIO_MODE_DISABLE,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
return gpio_config(&ana_cmpr_gpio_cfg);
}
esp_err_t ana_cmpr_new_unit(const ana_cmpr_config_t *config, ana_cmpr_handle_t *ret_cmpr)
{
#if CONFIG_ANA_CMPR_ENABLE_DEBUG_LOG
@@ -101,6 +119,7 @@ esp_err_t ana_cmpr_new_unit(const ana_cmpr_config_t *config, ana_cmpr_handle_t *
ANA_CMPR_NULL_POINTER_CHECK(ret_cmpr);
ana_cmpr_unit_t unit = config->unit;
ANA_CMPR_UNIT_CHECK(unit);
ESP_RETURN_ON_FALSE(config->intr_priority >= 0 && config->intr_priority <= 7, ESP_ERR_INVALID_ARG, TAG, "interrupt priority should be within 0~7");
ESP_RETURN_ON_FALSE(!s_ana_cmpr[unit], ESP_ERR_INVALID_STATE, TAG,
"unit has been allocated already");
esp_err_t ret = ESP_OK;
@@ -112,6 +131,7 @@ esp_err_t ana_cmpr_new_unit(const ana_cmpr_config_t *config, ana_cmpr_handle_t *
/* Assign analog comparator unit */
s_ana_cmpr[unit]->dev = ANALOG_CMPR_LL_GET_HW(unit);
s_ana_cmpr[unit]->ref_src = config->ref_src;
s_ana_cmpr[unit]->intr_priority = config->intr_priority;
s_ana_cmpr[unit]->is_enabled = false;
s_ana_cmpr[unit]->pm_lock = NULL;
@@ -123,6 +143,10 @@ esp_err_t ana_cmpr_new_unit(const ana_cmpr_config_t *config, ana_cmpr_handle_t *
ESP_GOTO_ON_ERROR(ret, err, TAG, "create NO_LIGHT_SLEEP, lock failed");
#endif
if (!config->flags.io_loop_back) {
ESP_GOTO_ON_ERROR(s_ana_cmpr_init_gpio(s_ana_cmpr[unit], config->ref_src == ANA_CMPR_REF_SRC_EXTERNAL), err, TAG, "failed to initialize GPIO");
}
/* Analog clock comes from IO MUX, but IO MUX clock might be shared with other submodules as well */
ESP_GOTO_ON_ERROR(esp_clk_tree_src_get_freq_hz((soc_module_clk_t)config->clk_src,
ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED,
@@ -134,23 +158,19 @@ esp_err_t ana_cmpr_new_unit(const ana_cmpr_config_t *config, ana_cmpr_handle_t *
/* Configure the register */
portENTER_CRITICAL(&s_spinlock);
analog_cmpr_ll_set_ref_source(s_ana_cmpr[unit]->dev, config->ref_src);
#if !SOC_ANA_CMPR_SUPPORT_MULTI_INTR
#if !SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
analog_cmpr_ll_set_cross_type(s_ana_cmpr[unit]->dev, config->cross_type);
#endif // SOC_ANA_CMPR_SUPPORT_MULTI_INTR
portEXIT_CRITICAL(&s_spinlock);
/* Allocate the interrupt, currently the interrupt source of Analog Comparator is shared with GPIO interrupt source */
#endif // SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
/* Record the interrupt mask, the interrupt will be lazy installed when register the callbacks */
s_ana_cmpr[unit]->intr_mask = analog_cmpr_ll_get_intr_mask_by_type(s_ana_cmpr[unit]->dev, config->cross_type);
ESP_GOTO_ON_ERROR(esp_intr_alloc_intrstatus(ana_cmpr_io_map[unit].intr_src, ANA_CMPR_INTR_FLAG, (uint32_t)analog_cmpr_ll_get_intr_status_reg(s_ana_cmpr[unit]->dev),
s_ana_cmpr[unit]->intr_mask, s_ana_cmpr_default_intr_handler, s_ana_cmpr[unit], &s_ana_cmpr[unit]->intr_handle),
err, TAG, "allocate interrupt failed");
portEXIT_CRITICAL(&s_spinlock);
if (config->ref_src == ANA_CMPR_REF_SRC_INTERNAL) {
ESP_LOGD(TAG, "unit %d allocated, source signal: GPIO %d, reference signal: internal",
(int)unit, ana_cmpr_io_map[unit].src_gpio);
(int)unit, ana_cmpr_periph[unit].src_gpio);
} else {
ESP_LOGD(TAG, "unit %d allocated, source signal: GPIO %d, reference signal: GPIO %d",
(int)unit, ana_cmpr_io_map[unit].src_gpio, ana_cmpr_io_map[unit].ext_ref_gpio);
(int)unit, ana_cmpr_periph[unit].src_gpio, ana_cmpr_periph[unit].ext_ref_gpio);
}
*ret_cmpr = s_ana_cmpr[unit];
@@ -230,12 +250,19 @@ esp_err_t ana_cmpr_set_debounce(ana_cmpr_handle_t cmpr, const ana_cmpr_debounce_
esp_err_t ana_cmpr_set_cross_type(ana_cmpr_handle_t cmpr, ana_cmpr_cross_type_t cross_type)
{
#if SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
/* Not support to set the cross type after initialized, because it relies on the interrupt types to distinguish the edge,
* i.e. have to re-allocate the interrupt to change the cross type */
(void)cmpr;
(void)cross_type;
return ESP_ERR_NOT_SUPPORTED;
#else
ANA_CMPR_NULL_POINTER_CHECK_ISR(cmpr);
ESP_RETURN_ON_FALSE_ISR(cross_type >= ANA_CMPR_CROSS_DISABLE && cross_type <= ANA_CMPR_CROSS_ANY,
ESP_ERR_INVALID_ARG, TAG, "invalid cross type");
portENTER_CRITICAL_SAFE(&s_spinlock);
#if !SOC_ANA_CMPR_SUPPORT_MULTI_INTR
#if !SOC_ANA_CMPR_CAN_DISTINGUISH_EDGE
analog_cmpr_ll_set_cross_type(cmpr->dev, cross_type);
#endif
cmpr->intr_mask = analog_cmpr_ll_get_intr_mask_by_type(cmpr->dev, cross_type);
@@ -244,6 +271,7 @@ esp_err_t ana_cmpr_set_cross_type(ana_cmpr_handle_t cmpr, ana_cmpr_cross_type_t
ESP_EARLY_LOGD(TAG, "unit %d cross type updated to %d", (int)cmpr->unit, cross_type);
return ESP_OK;
#endif
}
esp_err_t ana_cmpr_register_event_callbacks(ana_cmpr_handle_t cmpr, const ana_cmpr_event_callbacks_t *cbs, void *user_data)
@@ -263,6 +291,16 @@ esp_err_t ana_cmpr_register_event_callbacks(ana_cmpr_handle_t cmpr, const ana_cm
}
#endif
/* Allocate the interrupt, the interrupt source of Analog Comparator is shared with GPIO interrupt source on ESP32H2 */
if (!cmpr->intr_handle) {
int intr_flags = ANA_CMPR_INTR_FLAG | (cmpr->intr_priority ? BIT(cmpr->intr_priority) : ESP_INTR_FLAG_LOWMED);
#if SOC_ANA_CMPR_INTR_SHARE_WITH_GPIO
intr_flags |= ESP_INTR_FLAG_SHARED;
#endif // SOC_ANA_CMPR_INTR_SHARE_WITH_GPIO
ESP_RETURN_ON_ERROR(esp_intr_alloc_intrstatus(ana_cmpr_periph[cmpr->unit].intr_src, intr_flags, (uint32_t)analog_cmpr_ll_get_intr_status_reg(cmpr->dev),
cmpr->intr_mask, s_ana_cmpr_default_intr_handler, cmpr, &cmpr->intr_handle), TAG, "allocate interrupt failed");
}
/* Save the callback group */
memcpy(&(cmpr->cbs), cbs, sizeof(ana_cmpr_event_callbacks_t));
cmpr->user_data = user_data;
@@ -327,10 +365,10 @@ esp_err_t ana_cmpr_get_gpio(ana_cmpr_unit_t unit, ana_cmpr_channel_type_t chan_t
/* Get the gpio number according to the channel type */
switch (chan_type) {
case ANA_CMPR_SOURCE_CHAN:
*gpio_num = ana_cmpr_io_map[unit].src_gpio;
*gpio_num = ana_cmpr_periph[unit].src_gpio;
break;
case ANA_CMPR_EXT_REF_CHAN:
*gpio_num = ana_cmpr_io_map[unit].ext_ref_gpio;
*gpio_num = ana_cmpr_periph[unit].ext_ref_gpio;
break;
default:
ESP_LOGE(TAG, "invalid channel type");
@@ -339,3 +377,11 @@ esp_err_t ana_cmpr_get_gpio(ana_cmpr_unit_t unit, ana_cmpr_channel_type_t chan_t
return ESP_OK;
}
ana_cmpr_unit_t ana_cmpr_priv_get_unit_by_handle(ana_cmpr_handle_t cmpr)
{
if (!cmpr) {
return -1;
}
return cmpr->unit;
}
components/driver/analog_comparator/ana_cmpr_etm.c
+8 -47
View File
@@ -21,81 +21,42 @@
#include "driver/ana_cmpr_types.h"
#include "driver/ana_cmpr_etm.h"
#include "esp_private/etm_interface.h"
#include "ana_cmpr_private.h"
static const char *TAG = "ana-cmpr-etm";
#define ETM_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
typedef struct ana_cmpr_etm_event_t ana_cmpr_etm_event_t;
typedef struct {
portMUX_TYPE spinlock;
ana_cmpr_etm_event_t *events[SOC_ANA_CMPR_ETM_EVENTS_PER_UNIT];
} ana_cmpr_etm_unit_t;
struct ana_cmpr_etm_event_t {
esp_etm_event_t base;
ana_cmpr_unit_t unit;
ana_cmpr_event_type_t type;
};
static ana_cmpr_etm_unit_t s_ana_cmpr_etm_unit[SOC_ANA_CMPR_NUM] = {
[0 ... SOC_ANA_CMPR_NUM - 1] = {
.spinlock = portMUX_INITIALIZER_UNLOCKED,
.events[0 ... SOC_ANA_CMPR_ETM_EVENTS_PER_UNIT - 1] = NULL,
},
};
static esp_err_t ana_cmpr_etm_event_register_to_unit(ana_cmpr_etm_event_t *evt)
{
ESP_RETURN_ON_FALSE(!s_ana_cmpr_etm_unit[evt->unit].events[evt->type],
ESP_ERR_INVALID_STATE, TAG, "this event has been registered on the unit");
portENTER_CRITICAL(&s_ana_cmpr_etm_unit[evt->unit].spinlock);
s_ana_cmpr_etm_unit[evt->unit].events[evt->type] = evt;
portEXIT_CRITICAL(&s_ana_cmpr_etm_unit[evt->unit].spinlock);
return ESP_OK;
}
static esp_err_t ana_cmpr_etm_event_unregister_from_unit(ana_cmpr_etm_event_t *evt)
{
ESP_RETURN_ON_FALSE(s_ana_cmpr_etm_unit[evt->unit].events[evt->type] == evt,
ESP_ERR_INVALID_ARG, TAG, "the event handle is not match to registered handle");
portENTER_CRITICAL(&s_ana_cmpr_etm_unit[evt->unit].spinlock);
s_ana_cmpr_etm_unit[evt->unit].events[evt->type] = NULL;
portEXIT_CRITICAL(&s_ana_cmpr_etm_unit[evt->unit].spinlock);
return ESP_OK;
}
} ana_cmpr_etm_event_t;
static esp_err_t ana_cmpr_del_etm_event(esp_etm_event_handle_t base_event)
{
ana_cmpr_etm_event_t *event = __containerof(base_event, ana_cmpr_etm_event_t, base);
ESP_RETURN_ON_ERROR(ana_cmpr_etm_event_unregister_from_unit(event), TAG, "unregister the event from the unit");
free(event);
event = NULL;
return ESP_OK;
}
esp_err_t ana_cmpr_new_etm_event(const ana_cmpr_etm_event_config_t *config, esp_etm_event_handle_t *ret_event)
esp_err_t ana_cmpr_new_etm_event(ana_cmpr_handle_t cmpr, const ana_cmpr_etm_event_config_t *config, esp_etm_event_handle_t *ret_event)
{
#if CONFIG_ETM_ENABLE_DEBUG_LOG
esp_log_level_set(TAG, ESP_LOG_DEBUG);
#endif
esp_err_t ret = ESP_OK;
ana_cmpr_etm_event_t *event = NULL;
ESP_GOTO_ON_FALSE(config && ret_event, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
ana_cmpr_unit_t unit = ana_cmpr_priv_get_unit_by_handle(cmpr);
ESP_RETURN_ON_FALSE(((int)unit) >= 0, ESP_ERR_INVALID_ARG, TAG, "invalid analog comparator handle");
ESP_RETURN_ON_FALSE(config && ret_event, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
event = heap_caps_calloc(1, sizeof(ana_cmpr_etm_event_t), ETM_MEM_ALLOC_CAPS);
ESP_GOTO_ON_FALSE(event, ESP_ERR_NO_MEM, err, TAG, "no mem for analog comparator event");
event->unit = config->unit;
event->type = config->event_type;
// register the event channel to the group
ESP_GOTO_ON_ERROR(ana_cmpr_etm_event_register_to_unit(event), err, TAG, "register event channel to group failed");
uint32_t event_id = ANALOG_CMPR_LL_ETM_SOURCE(config->unit, config->event_type);
uint32_t event_id = ANALOG_CMPR_LL_ETM_SOURCE(unit, config->event_type);
event->base.del = ana_cmpr_del_etm_event;
event->base.event_id = event_id;
event->base.trig_periph = ETM_TRIG_PERIPH_ANA_CMPR;
ESP_LOGD(TAG, "new event @%p, event_id=%"PRIu32", unit_id=%d", event, event_id, config->unit);
ESP_LOGD(TAG, "new event @%p, event_id=%"PRIu32", unit_id=%d", event, event_id, unit);
*ret_event = &event->base;
return ESP_OK;
components/driver/analog_comparator/ana_cmpr_private.h
+20
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@@ -0,0 +1,20 @@
/*
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdbool.h>
#include "driver/ana_cmpr_types.h"
#ifdef __cplusplus
extern "C" {
#endif
ana_cmpr_unit_t ana_cmpr_priv_get_unit_by_handle(ana_cmpr_handle_t cmpr);
#ifdef __cplusplus
}
#endif
components/driver/analog_comparator/include/driver/ana_cmpr.h
+6
View File
@@ -28,6 +28,12 @@ typedef struct {
* for external reference, the reference signal should be connect to `ANA_CMPRx_EXT_REF_GPIO`
*/
ana_cmpr_cross_type_t cross_type; /*!< The crossing types that can trigger interrupt */
int intr_priority; /*!< The interrupt priority, range 0~7, if set to 0, the driver will try to allocate an interrupt with a relative low priority (1,2,3)
* otherwise the larger the higher, 7 is NMI */
struct {
uint32_t io_loop_back:1; /*!< Enable this field when the other signals that output on the comparision pins are supposed to be fed back.
* Normally used for debug/test scenario */
} flags; /*!< Analog comparator driver flags */
} ana_cmpr_config_t;
/**
components/driver/analog_comparator/include/driver/ana_cmpr_etm.h
+24 -5
View File
@@ -17,17 +17,36 @@
extern "C" {
#endif
/**
* @brief Analog Comparator ETM Events for each unit
*
*/
typedef enum {
ANA_CMPR_EVENT_POS_CROSS,
ANA_CMPR_EVENT_NEG_CROSS,
ANA_CMPR_EVENT_POS_CROSS, /*!< Positive cross event when the source signal becomes higher than the reference signal */
ANA_CMPR_EVENT_NEG_CROSS, /*!< Negative cross event when the source signal becomes lower than the reference signal */
} ana_cmpr_event_type_t;
/**
* @brief Analog Comparator ETM event configuration
*
*/
typedef struct {
ana_cmpr_unit_t unit;
ana_cmpr_event_type_t event_type; /*!< Which kind of cross type can trigger the ETM event module */
ana_cmpr_event_type_t event_type; /*!< Which kind of cross type can trigger the ETM event module */
} ana_cmpr_etm_event_config_t;
esp_err_t ana_cmpr_new_etm_event(const ana_cmpr_etm_event_config_t *config, esp_etm_event_handle_t *ret_event);
/**
* @brief Allocate a new Analog Comparator ETM event
*
* @param[in] cmpr Analog Comparator handle that allocated by `ana_cmpr_new_unit`
* @param[in] config Analog Comparator ETM event configuration
* @param[out] ret_event The returned generic handle of ETM event, which is used to connect to a task in the ETM driver
* @return
* - ESP_OK Success to create the new ETM event handle
* - ESP_ERR_NO_MEM No memory for the ETM event
* - ESP_ERR_INVALID_ARG NULL pointer of the input parameters
* - ESP_ERR_INVALID_STATE The event on the unit has been registered
*/
esp_err_t ana_cmpr_new_etm_event(ana_cmpr_handle_t cmpr, const ana_cmpr_etm_event_config_t *config, esp_etm_event_handle_t *ret_event);
#ifdef __cplusplus
}
components/driver/analog_comparator/include/driver/ana_cmpr_types.h
+5 -9
View File
@@ -18,12 +18,9 @@ extern "C" {
* @brief Analog comparator unit
*
*/
typedef enum {
ANA_CMPR_UNIT_0, /*!< Analog Comparator unit 0 */
#if SOC_ANA_CMPR_NUM == 2
ANA_CMPR_UNIT_1, /*!< Analog Comparator unit 1 */
#endif
} ana_cmpr_unit_t;
typedef int ana_cmpr_unit_t;
#define ANA_CMPR_UNIT_0 0 /*!< @deprecated Analog comparator unit 0 */
/**
* @brief Analog comparator reference source
@@ -94,10 +91,9 @@ typedef int ana_cmpr_clk_src_t;
*
*/
typedef struct {
#if SOC_ANA_CMPR_SUPPORT_MULTI_INTR
ana_cmpr_cross_type_t cross_type; /*!< The cross type of the target signal to the reference signal.
* Will either be ANA_CMPR_CROSS_POS or ANA_CMPR_CROSS_NEG */
#endif
* Will either be ANA_CMPR_CROSS_POS or ANA_CMPR_CROSS_NEG
* Always be ANA_CMPR_CROSS_ANY if target does not support independent interrupt (like ESP32H2) */
} ana_cmpr_cross_event_data_t;
/**