26a3cb93c7
1. move dport access header files to soc 2. reduce dport register write protection. Only protect read operation
128 lines
4.8 KiB
C
128 lines
4.8 KiB
C
// Copyright 2010-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _DPORT_ACCESS_H_
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#define _DPORT_ACCESS_H_
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#include <stdint.h>
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#include "esp_attr.h"
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void esp_dport_access_stall_other_cpu_start(void);
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void esp_dport_access_stall_other_cpu_end(void);
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#if defined(BOOTLOADER_BUILD) || defined(CONFIG_FREERTOS_UNICORE) || !defined(ESP_PLATFORM)
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#define DPORT_STAL_OTHER_CPU_START()
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#define DPORT_STAL_OTHER_CPU_END()
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#else
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#define DPORT_STAL_OTHER_CPU_START() esp_dport_access_stall_other_cpu_start()
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#define DPORT_STAL_OTHER_CPU_END() esp_dport_access_stall_other_cpu_end()
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#endif
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#define IS_DPORT_REG(_r) (((_r) >= DR_REG_DPORT_BASE) && (_r) <= DPORT_DATE_REG)
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//Registers Operation {{
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#define _REG_READ(_r) (*(volatile uint32_t *)(_r))
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#define _REG_WRITE(_r, _v) (*(volatile uint32_t *)(_r)) = (_v)
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//write value to register
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#define DPORT_REG_WRITE(_r, _v) _REG_WRITE(_r, _v)
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//read value from register
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inline uint32_t IRAM_ATTR DPORT_REG_READ(uint32_t reg)
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{
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uint32_t val;
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DPORT_STAL_OTHER_CPU_START();
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val = _REG_READ(reg);
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DPORT_STAL_OTHER_CPU_END();
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return val;
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}
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//get bit or get bits from register
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#define DPORT_REG_GET_BIT(_r, _b) (DPORT_REG_READ(_r) & (_b))
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//set bit or set bits to register
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#define DPORT_REG_SET_BIT(_r, _b) (*(volatile uint32_t*)(_r) |= (_b))
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//clear bit or clear bits of register
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#define DPORT_REG_CLR_BIT(_r, _b) (*(volatile uint32_t*)(_r) &= ~(_b))
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//set bits of register controlled by mask
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#define DPORT_REG_SET_BITS(_r, _b, _m) (*(volatile uint32_t*)(_r) = (DPORT_REG_READ(_r) & ~(_m)) | ((_b) & (_m)))
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//get field from register, uses field _S & _V to determine mask
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#define DPORT_REG_GET_FIELD(_r, _f) ((DPORT_REG_READ(_r) >> (_f##_S)) & (_f##_V))
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//set field to register, used when _f is not left shifted by _f##_S
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#define DPORT_REG_SET_FIELD(_r, _f, _v) (DPORT_REG_WRITE((_r),((DPORT_REG_READ(_r) & ~((_f) << (_f##_S)))|(((_v) & (_f))<<(_f##_S)))))
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//get field value from a variable, used when _f is not left shifted by _f##_S
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#define DPORT_VALUE_GET_FIELD(_r, _f) (((_r) >> (_f##_S)) & (_f))
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//get field value from a variable, used when _f is left shifted by _f##_S
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#define DPORT_VALUE_GET_FIELD2(_r, _f) (((_r) & (_f))>> (_f##_S))
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//set field value to a variable, used when _f is not left shifted by _f##_S
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#define DPORT_VALUE_SET_FIELD(_r, _f, _v) ((_r)=(((_r) & ~((_f) << (_f##_S)))|((_v)<<(_f##_S))))
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//set field value to a variable, used when _f is left shifted by _f##_S
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#define DPORT_VALUE_SET_FIELD2(_r, _f, _v) ((_r)=(((_r) & ~(_f))|((_v)<<(_f##_S))))
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//generate a value from a field value, used when _f is not left shifted by _f##_S
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#define DPORT_FIELD_TO_VALUE(_f, _v) (((_v)&(_f))<<_f##_S)
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//generate a value from a field value, used when _f is left shifted by _f##_S
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#define DPORT_FIELD_TO_VALUE2(_f, _v) (((_v)<<_f##_S) & (_f))
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#define _READ_PERI_REG(addr) (*((volatile uint32_t *)(addr)))
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#define _WRITE_PERI_REG(addr, val) (*((volatile uint32_t *)(addr))) = (uint32_t)(val)
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//read value from register
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inline uint32_t IRAM_ATTR DPORT_READ_PERI_REG(uint32_t addr)
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{
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uint32_t val;
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DPORT_STAL_OTHER_CPU_START();
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val = _READ_PERI_REG(addr);
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DPORT_STAL_OTHER_CPU_END();
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return val;
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}
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//write value to register
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#define DPORT_WRITE_PERI_REG(addr, val) _WRITE_PERI_REG(addr, val)
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//clear bits of register controlled by mask
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#define DPORT_CLEAR_PERI_REG_MASK(reg, mask) DPORT_WRITE_PERI_REG((reg), (DPORT_READ_PERI_REG(reg)&(~(mask))))
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//set bits of register controlled by mask
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#define DPORT_SET_PERI_REG_MASK(reg, mask) DPORT_WRITE_PERI_REG((reg), (DPORT_READ_PERI_REG(reg)|(mask)))
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//get bits of register controlled by mask
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#define DPORT_GET_PERI_REG_MASK(reg, mask) (DPORT_READ_PERI_REG(reg) & (mask))
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//get bits of register controlled by highest bit and lowest bit
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#define DPORT_GET_PERI_REG_BITS(reg, hipos,lowpos) ((DPORT_READ_PERI_REG(reg)>>(lowpos))&((1<<((hipos)-(lowpos)+1))-1))
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//set bits of register controlled by mask and shift
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#define DPORT_SET_PERI_REG_BITS(reg,bit_map,value,shift) DPORT_WRITE_PERI_REG((reg),(DPORT_READ_PERI_REG(reg)&(~((bit_map)<<(shift))))|(((value) & bit_map)<<(shift)))
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//get field of register
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#define DPORT_GET_PERI_REG_BITS2(reg, mask,shift) ((DPORT_READ_PERI_REG(reg)>>(shift))&(mask))
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//}}
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#endif /* _DPORT_ACCESS_H_ */
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