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- // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- #include <esp_types.h>
- #include "esp_intr.h"
- #include "freertos/FreeRTOS.h"
- #include "freertos/semphr.h"
- #include "freertos/xtensa_api.h"
- #include "soc/dport_reg.h"
- #include "driver/periph_ctrl.h"
- static portMUX_TYPE periph_spinlock = portMUX_INITIALIZER_UNLOCKED;
- /* Static functions to return register address & mask for clk_en / rst of each peripheral */
- static uint32_t get_clk_en_mask(periph_module_t periph);
- static uint32_t get_rst_en_mask(periph_module_t periph);
- static uint32_t get_clk_en_reg(periph_module_t periph);
- static uint32_t get_rst_en_reg(periph_module_t periph);
- void periph_module_enable(periph_module_t periph)
- {
- portENTER_CRITICAL(&periph_spinlock);
- DPORT_SET_PERI_REG_MASK(get_clk_en_reg(periph), get_clk_en_mask(periph));
- DPORT_CLEAR_PERI_REG_MASK(get_rst_en_reg(periph), get_rst_en_mask(periph));
- portEXIT_CRITICAL(&periph_spinlock);
- }
- void periph_module_disable(periph_module_t periph)
- {
- portENTER_CRITICAL(&periph_spinlock);
- DPORT_CLEAR_PERI_REG_MASK(get_clk_en_reg(periph), get_clk_en_mask(periph));
- DPORT_SET_PERI_REG_MASK(get_rst_en_reg(periph), get_rst_en_mask(periph));
- portEXIT_CRITICAL(&periph_spinlock);
- }
- void periph_module_reset(periph_module_t periph)
- {
- portENTER_CRITICAL(&periph_spinlock);
- DPORT_SET_PERI_REG_MASK(get_rst_en_reg(periph), get_rst_en_mask(periph));
- DPORT_CLEAR_PERI_REG_MASK(get_rst_en_reg(periph), get_rst_en_mask(periph));
- portEXIT_CRITICAL(&periph_spinlock);
- }
- static uint32_t get_clk_en_mask(periph_module_t periph)
- {
- switch(periph) {
- case PERIPH_RMT_MODULE:
- return DPORT_RMT_CLK_EN;
- case PERIPH_LEDC_MODULE:
- return DPORT_LEDC_CLK_EN;
- case PERIPH_UART0_MODULE:
- return DPORT_UART_CLK_EN;
- case PERIPH_UART1_MODULE:
- return DPORT_UART1_CLK_EN;
- case PERIPH_UART2_MODULE:
- return DPORT_UART2_CLK_EN;
- case PERIPH_I2C0_MODULE:
- return DPORT_I2C_EXT0_CLK_EN;
- case PERIPH_I2C1_MODULE:
- return DPORT_I2C_EXT1_CLK_EN;
- case PERIPH_I2S0_MODULE:
- return DPORT_I2S0_CLK_EN;
- case PERIPH_I2S1_MODULE:
- return DPORT_I2S1_CLK_EN;
- case PERIPH_TIMG0_MODULE:
- return DPORT_TIMERGROUP_CLK_EN;
- case PERIPH_TIMG1_MODULE:
- return DPORT_TIMERGROUP1_CLK_EN;
- case PERIPH_PWM0_MODULE:
- return DPORT_PWM0_CLK_EN;
- case PERIPH_PWM1_MODULE:
- return DPORT_PWM1_CLK_EN;
- case PERIPH_PWM2_MODULE:
- return DPORT_PWM2_CLK_EN;
- case PERIPH_PWM3_MODULE:
- return DPORT_PWM3_CLK_EN;
- case PERIPH_UHCI0_MODULE:
- return DPORT_UHCI0_CLK_EN;
- case PERIPH_UHCI1_MODULE:
- return DPORT_UHCI1_CLK_EN;
- case PERIPH_PCNT_MODULE:
- return DPORT_PCNT_CLK_EN;
- case PERIPH_SPI_MODULE:
- return DPORT_SPI01_CLK_EN;
- case PERIPH_HSPI_MODULE:
- return DPORT_SPI2_CLK_EN;
- case PERIPH_VSPI_MODULE:
- return DPORT_SPI3_CLK_EN;
- case PERIPH_SPI_DMA_MODULE:
- return DPORT_SPI_DMA_CLK_EN;
- case PERIPH_SDMMC_MODULE:
- return DPORT_WIFI_CLK_SDIO_HOST_EN;
- case PERIPH_SDIO_SLAVE_MODULE:
- return DPORT_WIFI_CLK_SDIOSLAVE_EN;
- case PERIPH_CAN_MODULE:
- return DPORT_CAN_CLK_EN;
- case PERIPH_EMAC_MODULE:
- return DPORT_WIFI_CLK_EMAC_EN;
- case PERIPH_RNG_MODULE:
- return DPORT_WIFI_CLK_RNG_EN;
- case PERIPH_WIFI_MODULE:
- return DPORT_WIFI_CLK_WIFI_EN_M;
- case PERIPH_BT_MODULE:
- return DPORT_WIFI_CLK_BT_EN_M;
- case PERIPH_WIFI_BT_COMMON_MODULE:
- return DPORT_WIFI_CLK_WIFI_BT_COMMON_M;
- case PERIPH_BT_BASEBAND_MODULE:
- return DPORT_BT_BASEBAND_EN;
- case PERIPH_BT_LC_MODULE:
- return DPORT_BT_LC_EN;
- default:
- return 0;
- }
- }
- static uint32_t get_rst_en_mask(periph_module_t periph)
- {
- switch(periph) {
- case PERIPH_RMT_MODULE:
- return DPORT_RMT_RST;
- case PERIPH_LEDC_MODULE:
- return DPORT_LEDC_RST;
- case PERIPH_UART0_MODULE:
- return DPORT_UART_RST;
- case PERIPH_UART1_MODULE:
- return DPORT_UART1_RST;
- case PERIPH_UART2_MODULE:
- return DPORT_UART2_RST;
- case PERIPH_I2C0_MODULE:
- return DPORT_I2C_EXT0_RST;
- case PERIPH_I2C1_MODULE:
- return DPORT_I2C_EXT1_RST;
- case PERIPH_I2S0_MODULE:
- return DPORT_I2S0_RST;
- case PERIPH_I2S1_MODULE:
- return DPORT_I2S1_RST;
- case PERIPH_TIMG0_MODULE:
- return DPORT_TIMERGROUP_RST;
- case PERIPH_TIMG1_MODULE:
- return DPORT_TIMERGROUP1_RST;
- case PERIPH_PWM0_MODULE:
- return DPORT_PWM0_RST;
- case PERIPH_PWM1_MODULE:
- return DPORT_PWM1_RST;
- case PERIPH_PWM2_MODULE:
- return DPORT_PWM2_RST;
- case PERIPH_PWM3_MODULE:
- return DPORT_PWM3_RST;
- case PERIPH_UHCI0_MODULE:
- return DPORT_UHCI0_RST;
- case PERIPH_UHCI1_MODULE:
- return DPORT_UHCI1_RST;
- case PERIPH_PCNT_MODULE:
- return DPORT_PCNT_RST;
- case PERIPH_SPI_MODULE:
- return DPORT_SPI01_RST;
- case PERIPH_HSPI_MODULE:
- return DPORT_SPI2_RST;
- case PERIPH_VSPI_MODULE:
- return DPORT_SPI3_RST;
- case PERIPH_SPI_DMA_MODULE:
- return DPORT_SPI_DMA_RST;
- case PERIPH_SDMMC_MODULE:
- return DPORT_SDIO_HOST_RST;
- case PERIPH_SDIO_SLAVE_MODULE:
- return DPORT_SDIO_RST;
- case PERIPH_CAN_MODULE:
- return DPORT_CAN_RST;
- case PERIPH_EMAC_MODULE:
- return DPORT_EMAC_RST;
- case PERIPH_WIFI_MODULE:
- case PERIPH_BT_MODULE:
- case PERIPH_WIFI_BT_COMMON_MODULE:
- case PERIPH_BT_BASEBAND_MODULE:
- case PERIPH_BT_LC_MODULE:
- return 0;
- default:
- return 0;
- }
- }
- static bool is_wifi_clk_peripheral(periph_module_t periph)
- {
- /* A small subset of peripherals use WIFI_CLK_EN_REG and
- CORE_RST_EN_REG for their clock & reset registers */
- switch(periph) {
- case PERIPH_SDMMC_MODULE:
- case PERIPH_SDIO_SLAVE_MODULE:
- case PERIPH_EMAC_MODULE:
- case PERIPH_RNG_MODULE:
- case PERIPH_WIFI_MODULE:
- case PERIPH_BT_MODULE:
- case PERIPH_WIFI_BT_COMMON_MODULE:
- case PERIPH_BT_BASEBAND_MODULE:
- case PERIPH_BT_LC_MODULE:
- return true;
- default:
- return false;
- }
- }
- static uint32_t get_clk_en_reg(periph_module_t periph)
- {
- return is_wifi_clk_peripheral(periph) ? DPORT_WIFI_CLK_EN_REG : DPORT_PERIP_CLK_EN_REG;
- }
- static uint32_t get_rst_en_reg(periph_module_t periph)
- {
- return is_wifi_clk_peripheral(periph) ? DPORT_CORE_RST_EN_REG : DPORT_PERIP_RST_EN_REG;
- }
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