esp32c3: added target component

This commit is contained in:
morris
2020-12-01 20:03:10 +08:00
parent 65aebef596
commit 8330b2541a
27 changed files with 2406 additions and 0 deletions

View File

@@ -0,0 +1,21 @@
// Copyright 2015-2020 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.
#ifndef __ESP_BROWNOUT_H
#define __ESP_BROWNOUT_H
void esp_brownout_init(void);
#endif

View File

@@ -0,0 +1,33 @@
// Copyright 2015-2020 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.
/**
* @brief initialize cache invalid access interrupt
*
* This function enables cache invalid access interrupt source and connects it
* to interrupt input number ETS_CACHEERR_INUM (see soc/soc.h). It is called
* from the startup code.
*/
void esp_cache_err_int_init(void);
/**
* @brief get the CPU which caused cache invalid access interrupt
* @return
* - PRO_CPU_NUM, if PRO_CPU has caused cache IA interrupt
* - APP_CPU_NUM, if APP_CPU has caused cache IA interrupt
* - (-1) otherwise
*/
int esp_cache_err_get_cpuid(void);

View File

@@ -0,0 +1,84 @@
// Copyright 2015-2020 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.
#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file esp_clk.h
*
* This file contains declarations of clock related functions.
*/
/**
* @brief Get the calibration value of RTC slow clock
*
* The value is in the same format as returned by rtc_clk_cal (microseconds,
* in Q13.19 fixed-point format).
*
* @return the calibration value obtained using rtc_clk_cal, at startup time
*/
uint32_t esp_clk_slowclk_cal_get(void);
/**
* @brief Update the calibration value of RTC slow clock
*
* The value has to be in the same format as returned by rtc_clk_cal (microseconds,
* in Q13.19 fixed-point format).
* This value is used by timekeeping functions (such as gettimeofday) to
* calculate current time based on RTC counter value.
* @param value calibration value obtained using rtc_clk_cal
*/
void esp_clk_slowclk_cal_set(uint32_t value);
/**
* @brief Return current CPU clock frequency
* When frequency switching is performed, this frequency may change.
* However it is guaranteed that the frequency never changes with a critical
* section.
*
* @return CPU clock frequency, in Hz
*/
int esp_clk_cpu_freq(void);
/**
* @brief Return current APB clock frequency
*
* When frequency switching is performed, this frequency may change.
* However it is guaranteed that the frequency never changes with a critical
* section.
*
* @return APB clock frequency, in Hz
*/
int esp_clk_apb_freq(void);
/**
* @brief Read value of RTC counter, converting it to microseconds
* @attention The value returned by this function may change abruptly when
* calibration value of RTC counter is updated via esp_clk_slowclk_cal_set
* function. This should not happen unless application calls esp_clk_slowclk_cal_set.
* In ESP-IDF, esp_clk_slowclk_cal_set is only called in startup code.
*
* @return Value or RTC counter, expressed in microseconds
*/
uint64_t esp_clk_rtc_time(void);
#ifdef __cplusplus
}
#endif

View File

@@ -0,0 +1,42 @@
// Copyright 2010-2020 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.
#ifndef _ESP_DPORT_ACCESS_H_
#define _ESP_DPORT_ACCESS_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Read a sequence of DPORT registers to the buffer.
*
* @param[out] buff_out Contains the read data.
* @param[in] address Initial address for reading registers.
* @param[in] num_words The number of words.
*/
void esp_dport_access_read_buffer(uint32_t *buff_out, uint32_t address, uint32_t num_words);
#define DPORT_STALL_OTHER_CPU_START()
#define DPORT_STALL_OTHER_CPU_END()
#define DPORT_INTERRUPT_DISABLE()
#define DPORT_INTERRUPT_RESTORE()
#ifdef __cplusplus
}
#endif
#endif /* _ESP_DPORT_ACCESS_H_ */

View File

@@ -0,0 +1,356 @@
// Copyright 2020 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.
/* INTERNAL API
* generic interface to MMU memory protection features
*/
#pragma once
#include <stdint.h>
#include "esp_attr.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
MEMPROT_IRAM0 = 0x00000000,
MEMPROT_DRAM0 = 0x00000001,
MEMPROT_UNKNOWN
} mem_type_prot_t;
/**
* @brief Returns splitting address for required memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Splitting address for the memory region required.
* The address is given by region-specific global symbol exported from linker script,
* it is not read out from related configuration register.
*/
uint32_t *IRAM_ATTR esp_memprot_get_split_addr(mem_type_prot_t mem_type);
/**
* @brief Initializes illegal memory access control (MMU) for required memory section.
*
* All memory access interrupts share ETS_MEMACCESS_ERR_INUM input channel, it is caller's
* responsibility to properly detect actual intr. source as well as possible prioritization in case
* of multiple source reported during one intr.handling routine run
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*/
void esp_memprot_intr_init(mem_type_prot_t mem_type);
/**
* @brief Enable/disable the memory protection interrupt
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param enable enable/disable
*/
void esp_memprot_intr_ena(mem_type_prot_t mem_type, bool enable);
/**
* @brief Detects whether any of the memory protection interrupts is active
*
* @return true/false
*/
bool esp_memprot_is_assoc_intr_any(void);
/**
* @brief Detects whether specific memory protection interrupt is active
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return true/false
*/
bool esp_memprot_is_assoc_intr(mem_type_prot_t mem_type);
/**
* @brief Sets a request for clearing interrupt-on flag for specified memory region (register write)
*
* @note When called without actual interrupt-on flag set, subsequent occurrence of related interrupt is ignored.
* Should be used only after the real interrupt appears, typically as the last step in interrupt handler's routine.
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*/
void esp_memprot_clear_intr(mem_type_prot_t mem_type);
/**
* @brief Detects which memory protection interrupt is active, check order: IRAM0, DRAM0
*
* @return Memory protection area type (see mem_type_prot_t enum)
*/
mem_type_prot_t IRAM_ATTR esp_memprot_get_intr_memtype(void);
/**
* @brief Gets interrupt status register contents for specified memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Contents of status register
*/
uint32_t esp_memprot_get_fault_reg(mem_type_prot_t mem_type);
/**
* @brief Get details of given interrupt status
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param faulting_address Faulting address causing the interrupt [out]
* @param op_type Operation being processed at the faulting address [out]
* IRAM0: 0 - read, 1 - write
* DRAM0: 0 - read, 1 - write
* @param op_subtype Additional info for op_type [out]
* IRAM0: 0 - instruction segment access, 1 - data segment access
* DRAM0: 0 - non-atomic operation, 1 - atomic operation
*/
void IRAM_ATTR esp_memprot_get_fault_status(mem_type_prot_t mem_type, uint32_t **faulting_address, uint32_t *op_type, uint32_t *op_subtype);
/**
* @brief Gets string representation of required memory region identifier
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return mem_type as string
*/
const char *IRAM_ATTR esp_memprot_type_to_str(mem_type_prot_t mem_type);
/**
* @brief Detects whether any of the interrupt locks is active (requires digital system reset to unlock)
*
* @return true/false
*/
bool esp_memprot_is_locked_any(void);
/**
* @brief Sets lock for specified memory region.
*
* Locks can be unlocked only by digital system reset
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*/
void esp_memprot_set_lock(mem_type_prot_t mem_type);
/**
* @brief Gets lock status for required memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return true/false (locked/unlocked)
*/
bool esp_memprot_get_lock(mem_type_prot_t mem_type);
/**
* @brief Gets interrupt permission control register contents for required memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Permission control register contents
*/
uint32_t esp_memprot_get_ena_reg(mem_type_prot_t mem_type);
/**
* @brief Gets interrupt permission settings for unified management block
*
* Gets interrupt permission settings register contents for required memory region, returns settings for unified management blocks
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Permission settings register contents
*/
uint32_t esp_memprot_get_perm_uni_reg(mem_type_prot_t mem_type);
/**
* @brief Gets interrupt permission settings for split management block
*
* Gets interrupt permission settings register contents for required memory region, returns settings for split management blocks
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Permission settings register contents
*/
uint32_t esp_memprot_get_perm_split_reg(mem_type_prot_t mem_type);
/**
* @brief Detects whether any of the memory protection interrupts is enabled
*
* @return true/false
*/
bool esp_memprot_is_intr_ena_any(void);
/**
* @brief Gets interrupt-enabled flag for given memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Interrupt-enabled value
*/
uint32_t esp_memprot_get_intr_ena_bit(mem_type_prot_t mem_type);
/**
* @brief Gets interrupt-active flag for given memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Interrupt-active value
*/
uint32_t esp_memprot_get_intr_on_bit(mem_type_prot_t mem_type);
/**
* @brief Gets interrupt-clear request flag for given memory region
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
*
* @return Interrupt-clear request value
*/
uint32_t esp_memprot_get_intr_clr_bit(mem_type_prot_t mem_type);
/**
* @brief Gets read permission value for specified block and memory region
*
* Returns read permission bit value for required unified-management block (0-3) in given memory region.
* Applicable to all memory types.
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param block Memory block identifier (0-3)
*
* @return Read permission value for required block
*/
uint32_t esp_memprot_get_uni_block_read_bit(mem_type_prot_t mem_type, uint32_t block);
/**
* @brief Gets write permission value for specified block and memory region
*
* Returns write permission bit value for required unified-management block (0-3) in given memory region.
* Applicable to all memory types.
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param block Memory block identifier (0-3)
*
* @return Write permission value for required block
*/
uint32_t esp_memprot_get_uni_block_write_bit(mem_type_prot_t mem_type, uint32_t block);
/**
* @brief Gets execute permission value for specified block and memory region
*
* Returns execute permission bit value for required unified-management block (0-3) in given memory region.
* Applicable only to IRAM memory types
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param block Memory block identifier (0-3)
*
* @return Execute permission value for required block
*/
uint32_t esp_memprot_get_uni_block_exec_bit(mem_type_prot_t mem_type, uint32_t block);
/**
* @brief Sets permissions for specified block in DRAM region
*
* Sets Read and Write permission for specified unified-management block (0-3) in given memory region.
* Applicable only to DRAM memory types
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param block Memory block identifier (0-3)
* @param write_perm Write permission flag
* @param read_perm Read permission flag
*/
void esp_memprot_set_uni_block_perm_dram(mem_type_prot_t mem_type, uint32_t block, bool write_perm, bool read_perm);
/**
* @brief Sets permissions for high and low memory segment in DRAM region
*
* Sets Read and Write permission for both low and high memory segments given by splitting address.
* The splitting address must be equal to or higher then beginning of block 5
* Applicable only to DRAM memory types
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param split_addr Address to split the memory region to lower and higher segment
* @param lw Low segment Write permission flag
* @param lr Low segment Read permission flag
* @param hw High segment Write permission flag
* @param hr High segment Read permission flag
*/
void esp_memprot_set_prot_dram(mem_type_prot_t mem_type, uint32_t *split_addr, bool lw, bool lr, bool hw, bool hr);
/**
* @brief Sets permissions for specified block in IRAM region
*
* Sets Read, Write and Execute permission for specified unified-management block (0-3) in given memory region.
* Applicable only to IRAM memory types
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param block Memory block identifier (0-3)
* @param write_perm Write permission flag
* @param exec_perm Execute permission flag
*/
void esp_memprot_set_uni_block_perm_iram(mem_type_prot_t mem_type, uint32_t block, bool write_perm, bool read_perm, bool exec_perm);
/**
* @brief Sets permissions for high and low memory segment in IRAM region
*
* Sets Read, Write and Execute permission for both low and high memory segments given by splitting address.
* The splitting address must be equal to or higher then beginning of block 5
* Applicable only to IRAM memory types
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param split_addr Address to split the memory region to lower and higher segment
* @param lw Low segment Write permission flag
* @param lr Low segment Read permission flag
* @param lx Low segment Execute permission flag
* @param hw High segment Write permission flag
* @param hr High segment Read permission flag
* @param hx High segment Execute permission flag
*/
void esp_memprot_set_prot_iram(mem_type_prot_t mem_type, uint32_t *split_addr, bool lw, bool lr, bool lx, bool hw, bool hr, bool hx);
/**
* @brief Activates memory protection for all supported memory region types
*
* @note The feature is disabled when JTAG interface is connected
*
* @param invoke_panic_handler map mem.prot interrupt to ETS_MEMACCESS_ERR_INUM and thus invokes panic handler when fired ('true' not suitable for testing)
* @param lock_feature sets LOCK bit, see esp_memprot_set_lock() ('true' not suitable for testing)
*/
void esp_memprot_set_prot(bool invoke_panic_handler, bool lock_feature);
/**
* @brief Get permission settings bits for IRAM split mgmt based on current split address
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param lw Low segment Write permission flag
* @param lr Low segment Read permission flag
* @param lx Low segment Execute permission flag
* @param hw High segment Write permission flag
* @param hr High segment Read permission flag
* @param hx High segment Execute permission flag
*/
void esp_memprot_get_perm_split_bits_iram(mem_type_prot_t mem_type, bool *lw, bool *lr, bool *lx, bool *hw, bool *hr, bool *hx);
/**
* @brief Get permission settings bits for DRAM split mgmt based on current split address
*
* @param mem_type Memory protection area type (see mem_type_prot_t enum)
* @param lw Low segment Write permission flag
* @param lr Low segment Read permission flag
* @param hw High segment Write permission flag
* @param hr High segment Read permission flag
*/
void esp_memprot_get_perm_split_bits_dram(mem_type_prot_t mem_type, bool *lw, bool *lr, bool *hw, bool *hr);
#ifdef __cplusplus
}
#endif

View File

@@ -0,0 +1,40 @@
// Copyright 2015-2020 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.
#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file esp32c3/rtc.h
*
* This file contains declarations of rtc related functions.
*/
/**
* @brief Get current value of RTC counter in microseconds
*
* Note: this function may take up to 1 RTC_SLOW_CLK cycle to execute
*
* @return current value of RTC counter in microseconds
*/
uint64_t esp_rtc_get_time_us(void);
#ifdef __cplusplus
}
#endif