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feat(sdio_slave): add reset and clock control functions

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This commit is contained in:
morris 2024-03-28 18:13:04 +08:00
parent b4de983dbc
commit b55a0e015a
3 changed files with 139 additions and 76 deletions
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22
components/esp_driver_sdio/src/sdio_slave.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -83,6 +83,7 @@ The driver of FIFOs works as below:
#include "freertos/FreeRTOS.h"
#include "soc/soc_memory_layout.h"
#include "soc/gpio_periph.h"
#include "soc/soc_caps.h"
#include "esp_cpu.h"
#include "freertos/semphr.h"
#include "esp_private/periph_ctrl.h"
@ -100,6 +101,12 @@ static const char TAG[] = "sdio_slave";
#define SDIO_SLAVE_LOGE(s, ...) ESP_LOGE(TAG, "%s(%d): "s, __FUNCTION__,__LINE__,##__VA_ARGS__)
#define SDIO_SLAVE_LOGW(s, ...) ESP_LOGW(TAG, "%s: "s, __FUNCTION__,##__VA_ARGS__)
#if !SOC_RCC_IS_INDEPENDENT
#define SDIO_SLAVE_RCC_ATOMIC() PERIPH_RCC_ATOMIC()
#else
#define SDIO_SLAVE_RCC_ATOMIC()
#endif
// sdio_slave_buf_handle_t is of type recv_desc_t*;
typedef struct recv_desc_s {
union {
@ -304,9 +311,11 @@ static inline esp_err_t sdio_slave_hw_init(sdio_slave_config_t *config)
}
configure_pin(slot->d3_gpio, slot->func, pullup);
//enable module and config
periph_module_reset(PERIPH_SDIO_SLAVE_MODULE);
periph_module_enable(PERIPH_SDIO_SLAVE_MODULE);
//enable register clock
SDIO_SLAVE_RCC_ATOMIC() {
sdio_slave_ll_enable_bus_clock(true);
sdio_slave_ll_reset_register();
}
sdio_slave_hal_hw_init(context.hal);
return ESP_OK;
@ -333,6 +342,11 @@ static void sdio_slave_hw_deinit(void)
recover_pin(slot->d1_gpio, slot->func);
recover_pin(slot->d2_gpio, slot->func);
recover_pin(slot->d3_gpio, slot->func);
//disable register clock
SDIO_SLAVE_RCC_ATOMIC() {
sdio_slave_ll_enable_bus_clock(false);
}
}
esp_err_t sdio_slave_initialize(sdio_slave_config_t *config)

36
components/hal/esp32/include/hal/sdio_slave_ll.h
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -23,6 +23,7 @@
#include "soc/host_reg.h"
#include "soc/hinf_struct.h"
#include "soc/lldesc.h"
#include "soc/dport_reg.h"
#ifdef __cplusplus
extern "C" {
@ -35,7 +36,6 @@ extern "C" {
/// Get address of the only HINF registers for ESP32
#define sdio_slave_ll_get_hinf(ID) (&HINF)
/*
* SLC2 DMA Desc struct, aka sdio_slave_ll_desc_t
*
@ -75,6 +75,36 @@ typedef enum {
SDIO_SLAVE_LL_SLVINT_7 = BIT(7),
} sdio_slave_ll_slvint_t;
/**
* @brief Enable the bus clock for the SDIO slave module
*
* @param enable true to enable, false to disable
*/
static inline void _sdio_slave_ll_enable_bus_clock(bool enable)
{
uint32_t reg_val = DPORT_READ_PERI_REG(DPORT_WIFI_CLK_EN_REG);
reg_val &= ~DPORT_WIFI_CLK_SDIOSLAVE_EN;
reg_val |= enable << 4;
DPORT_WRITE_PERI_REG(DPORT_WIFI_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 sdio_slave_ll_enable_bus_clock(...) (void)__DECLARE_RCC_ATOMIC_ENV; _sdio_slave_ll_enable_bus_clock(__VA_ARGS__)
/**
* @brief Reset the SDIO slave module
*/
static inline void _sdio_slave_ll_reset_register(void)
{
DPORT_WRITE_PERI_REG(DPORT_CORE_RST_EN_REG, DPORT_SDIO_RST);
DPORT_WRITE_PERI_REG(DPORT_CORE_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 sdio_slave_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; _sdio_slave_ll_reset_register(__VA_ARGS__)
/**
* Initialize the hardware.
*
@ -488,7 +518,7 @@ static inline void sdio_slave_ll_host_send_int(slc_dev_t *slc, const sdio_slave_
}
/**
* Enable some of the slave interrups (send from host)
* Enable some of the slave interrupts (send from host)
*
* @param slc Address of the SLC registers
* @param mask Mask of interrupts to enable, all those set to 0 will be disabled.

25
components/hal/esp32c6/include/hal/sdio_slave_ll.h
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -23,6 +23,7 @@
#include "soc/host_reg.h"
#include "soc/hinf_struct.h"
#include "soc/lldesc.h"
#include "soc/pcr_struct.h"
#ifdef __cplusplus
extern "C" {
@ -35,7 +36,6 @@ extern "C" {
/// Get address of the only HINF registers
#define sdio_slave_ll_get_hinf(ID) (&HINF)
/*
* SLC2 DMA Desc struct, aka sdio_slave_ll_desc_t
*
@ -75,6 +75,25 @@ typedef enum {
SDIO_SLAVE_LL_SLVINT_7 = BIT(7),
} sdio_slave_ll_slvint_t;
/**
* @brief Enable the bus clock for the SDIO slave module
*
* @param enable true to enable, false to disable
*/
static inline void sdio_slave_ll_enable_bus_clock(bool enable)
{
PCR.sdio_slave_conf.sdio_slave_clk_en = enable;
}
/**
* @brief Reset the SDIO slave module
*/
static inline void sdio_slave_ll_reset_register(void)
{
PCR.sdio_slave_conf.sdio_slave_rst_en = 1;
PCR.sdio_slave_conf.sdio_slave_rst_en = 0;
}
/**
* Initialize the hardware.
*
@ -488,7 +507,7 @@ static inline void sdio_slave_ll_host_send_int(slc_dev_t *slc, const sdio_slave_
}
/**
* Enable some of the slave interrups (send from host)
* Enable some of the slave interrupts (send from host)
*
* @param slc Address of the SLC registers
* @param mask Mask of interrupts to enable, all those set to 0 will be disabled.