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feat(dedic_gpio): add reset and clock control functions

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This commit is contained in:
morris 2024-03-28 17:59:21 +08:00
parent 1b8e1df648
commit b4de983dbc
3 changed files with 73 additions and 4 deletions
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15
components/esp_driver_gpio/src/dedic_gpio.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -28,6 +28,8 @@
#include "soc/dedic_gpio_periph.h"
#if SOC_DEDIC_GPIO_ALLOW_REG_ACCESS
#include "soc/dedic_gpio_struct.h"
#endif
#if !SOC_DEDIC_PERIPH_ALWAYS_ENABLE
#include "hal/dedic_gpio_ll.h"
#endif
@ -84,7 +86,11 @@ static esp_err_t dedic_gpio_build_platform(int core_id)
s_platform[core_id]->dev = &DEDIC_GPIO;
#endif // SOC_DEDIC_GPIO_ALLOW_REG_ACCESS
#if !SOC_DEDIC_PERIPH_ALWAYS_ENABLE
periph_module_enable(dedic_gpio_periph_signals.module); // enable APB clock to peripheral
// enable dedicated GPIO register clock
PERIPH_RCC_ATOMIC() {
dedic_gpio_ll_enable_bus_clock(true);
dedic_gpio_ll_reset_register();
}
#endif // !SOC_DEDIC_PERIPH_ALWAYS_ENABLE
}
}
@ -107,7 +113,10 @@ static void dedic_gpio_break_platform(uint32_t core_id)
free(s_platform[core_id]);
s_platform[core_id] = NULL;
#if !SOC_DEDIC_PERIPH_ALWAYS_ENABLE
periph_module_disable(dedic_gpio_periph_signals.module); // disable module if no GPIO channel is being used
// disable the register clock if no GPIO channel is in use
PERIPH_RCC_ATOMIC() {
dedic_gpio_ll_enable_bus_clock(false);
}
#endif // !SOC_DEDIC_PERIPH_ALWAYS_ENABLE
}
_lock_release(&s_platform_mutexlock[core_id]);

25
components/hal/esp32s2/include/hal/dedic_gpio_ll.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -13,6 +13,29 @@ extern "C" {
#include <stdbool.h>
#include "hal/misc.h"
#include "soc/dedic_gpio_struct.h"
#include "soc/system_reg.h"
static inline void _dedic_gpio_ll_enable_bus_clock(bool enable)
{
uint32_t reg_val = READ_PERI_REG(DPORT_CPU_PERI_CLK_EN_REG);
reg_val &= ~DPORT_CLK_EN_DEDICATED_GPIO_M;
reg_val |= enable << DPORT_CLK_EN_DEDICATED_GPIO_S;
WRITE_PERI_REG(DPORT_CPU_PERI_CLK_EN_REG, reg_val);
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define dedic_gpio_ll_enable_bus_clock(...) (void)__DECLARE_RCC_ATOMIC_ENV; _dedic_gpio_ll_enable_bus_clock(__VA_ARGS__)
static inline void _dedic_gpio_ll_reset_register(void)
{
WRITE_PERI_REG(DPORT_CPU_PERI_RST_EN_REG, DPORT_RST_EN_DEDICATED_GPIO_M);
WRITE_PERI_REG(DPORT_CPU_PERI_RST_EN_REG, 0);
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define dedic_gpio_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; _dedic_gpio_ll_reset_register(__VA_ARGS__)
static inline void dedic_gpio_ll_enable_instruction_access_out(dedic_dev_t *dev, uint32_t channel_mask, bool enable)
{

37
components/hal/esp32s3/include/hal/dedic_gpio_ll.h Normal file
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@ -0,0 +1,37 @@
/*
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include "soc/system_struct.h"
static inline void _dedic_gpio_ll_enable_bus_clock(bool enable)
{
SYSTEM.cpu_peri_clk_en.clk_en_dedicated_gpio = enable;
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define dedic_gpio_ll_enable_bus_clock(...) (void)__DECLARE_RCC_ATOMIC_ENV; _dedic_gpio_ll_enable_bus_clock(__VA_ARGS__)
static inline void _dedic_gpio_ll_reset_register(void)
{
SYSTEM.cpu_peri_rst_en.rst_en_dedicated_gpio = 1;
SYSTEM.cpu_peri_rst_en.rst_en_dedicated_gpio = 0;
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define dedic_gpio_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; _dedic_gpio_ll_reset_register(__VA_ARGS__)
#ifdef __cplusplus
}
#endif