// Copyright 2010-2016 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.
#ifndef _ESP32_SOC_H_
#define _ESP32_SOC_H_
#include <stdint.h>
//Register Bits{{
#define BIT31 0x80000000
#define BIT30 0x40000000
#define BIT29 0x20000000
#define BIT28 0x10000000
#define BIT27 0x08000000
#define BIT26 0x04000000
#define BIT25 0x02000000
#define BIT24 0x01000000
#define BIT23 0x00800000
#define BIT22 0x00400000
#define BIT21 0x00200000
#define BIT20 0x00100000
#define BIT19 0x00080000
#define BIT18 0x00040000
#define BIT17 0x00020000
#define BIT16 0x00010000
#define BIT15 0x00008000
#define BIT14 0x00004000
#define BIT13 0x00002000
#define BIT12 0x00001000
#define BIT11 0x00000800
#define BIT10 0x00000400
#define BIT9 0x00000200
#define BIT8 0x00000100
#define BIT7 0x00000080
#define BIT6 0x00000040
#define BIT5 0x00000020
#define BIT4 0x00000010
#define BIT3 0x00000008
#define BIT2 0x00000004
#define BIT1 0x00000002
#define BIT0 0x00000001
//}}
//Registers Operation {{
#define ETS_UNCACHED_ADDR(addr) (addr)
#define ETS_CACHED_ADDR(addr) (addr)
#define BIT(nr) (1UL << (nr))
#define REG_WRITE(_r, _v) (*(volatile uint32_t *)(_r)) = (_v)
#define REG_READ(_r) (*(volatile uint32_t *)(_r))
#define REG_GET_BIT(_r, _b) (*(volatile uint32_t*)(_r) & (_b))
#define REG_SET_BIT(_r, _b) (*(volatile uint32_t*)(_r) |= (_b))
#define REG_CLR_BIT(_r, _b) (*(volatile uint32_t*)(_r) &= ~(_b))
#define REG_SET_BITS(_r, _b, _m) (*(volatile uint32_t*)(_r) = (*(volatile uint32_t*)(_r) & ~(_m)) | ((_b) & (_m)))
#define VALUE_GET_FIELD(_r, _f) (((_r) >> (_f##_S)) & (_f))
#define VALUE_GET_FIELD2(_r, _f) (((_r) & (_f))>> (_f##_S))
#define VALUE_SET_FIELD(_r, _f, _v) ((_r)=(((_r) & ~((_f) << (_f##_S)))|((_v)<<(_f##_S))))
#define VALUE_SET_FIELD2(_r, _f, _v) ((_r)=(((_r) & ~(_f))|((_v)<<(_f##_S))))
#define FIELD_TO_VALUE(_f, _v) (((_v)&(_f))<<_f##_S)
#define FIELD_TO_VALUE2(_f, _v) (((_v)<<_f##_S) & (_f))
#define REG_GET_FIELD(_r, _f) ((REG_READ(_r) >> (_f##_S)) & (_f))
#define REG_SET_FIELD(_r, _f, _v) (REG_WRITE((_r),((REG_READ(_r) & ~((_f) << (_f##_S)))|(((_v) & (_f))<<(_f##_S)))))
#define READ_PERI_REG(addr) (*((volatile uint32_t *)ETS_UNCACHED_ADDR(addr)))
#define WRITE_PERI_REG(addr, val) (*((volatile uint32_t *)ETS_UNCACHED_ADDR(addr))) = (uint32_t)(val)
#define CLEAR_PERI_REG_MASK(reg, mask) WRITE_PERI_REG((reg), (READ_PERI_REG(reg)&(~(mask))))
#define SET_PERI_REG_MASK(reg, mask) WRITE_PERI_REG((reg), (READ_PERI_REG(reg)|(mask)))
#define GET_PERI_REG_MASK(reg, mask) (READ_PERI_REG(reg) & (mask))
#define GET_PERI_REG_BITS(reg, hipos,lowpos) ((READ_PERI_REG(reg)>>(lowpos))&((1<<((hipos)-(lowpos)+1))-1))
#define SET_PERI_REG_BITS(reg,bit_map,value,shift) (WRITE_PERI_REG((reg),(READ_PERI_REG(reg)&(~((bit_map)<<(shift))))|(((value) & bit_map)<<(shift)) ))
#define GET_PERI_REG_BITS2(reg, mask,shift) ((READ_PERI_REG(reg)>>(shift))&(mask))
//}}
//Periheral Clock {{
#define APB_CLK_FREQ_ROM 13*1000000
#define CPU_CLK_FREQ_ROM APB_CLK_FREQ_ROM
#define CPU_CLK_FREQ APB_CLK_FREQ
#define APB_CLK_FREQ 80*1000000 //unit: Hz
#define UART_CLK_FREQ APB_CLK_FREQ
//#define WDT_CLK_FREQ APB_CLK_FREQ
#define TIMER_CLK_FREQ (80000000>>4) //80MHz divided by 16
#define SPI_CLK_DIV 4
//#define RTC_CLK_FREQ 32768 //unit:Hz
//#define RTC_CLK_FREQ 100000 //unit:Hz
//#define CALIB_CLK_MHZ 40
#define TICKS_PER_US 13 // CPU is 80MHz
//}}
#if 0
//Peripheral device base address define{{
#define DR_REG_DPORT_BASE 0x3ff00000
#define DR_REG_UART_BASE 0x60000000
#define DR_REG_SPI1_BASE 0x60002000 //no
#define DR_REG_SPI0_BASE 0x60003000 //no
#define DR_REG_GPIO_BASE 0x60004000 //no
#define DR_REG_FE2_BASE 0x60005000
#define DR_REG_FE_BASE 0x60006000
#define DR_REG_TIMER_BASE 0x60007000 //no
#define DR_REG_RTCCNTL_BASE 0x60008000
#define DR_REG_RTCIO_BASE 0x60008400
#define DR_REG_RTCMEM0_BASE 0x60021000
#define DR_REG_RTCMEM1_BASE 0x60022000
#define DR_REG_RTCMEM2_BASE 0x60023000
#define DR_REG_IO_MUX_BASE 0x60009000 //no
#define DR_REG_WDG_BASE 0x6000A000 //no
#define DR_REG_HINF_BASE 0x6000B000 //no
#define DR_REG_UHCI1_BASE 0x6000C000
//#define DR_REG_MISC_BASE 0x6000D000 //no use
#define DR_REG_I2C_BASE 0x6000E000 //no
#define DR_REG_I2S_BASE 0x6000F000
#define DR_REG_UART1_BASE 0x60010000
#define DR_REG_BT_BASE 0x60011000
//#define DR_REG_BT_BUFFER_BASE 0x60012000 //no use
#define DR_REG_I2C_EXT_BASE 0x60013000 //no
#define DR_REG_UHCI0_BASE 0x60014000
#define DR_REG_SLCHOST_BASE 0x60015000
#define DR_REG_RMT_BASE 0x60016000
#define DR_REG_PCNT_BASE 0x60017000
#define DR_REG_SLC_BASE 0x60018000
#define DR_REG_LEDC_BASE 0x60019000
#define DR_REG_EFUSE_BASE 0x6001A000
#define DR_REG_SPI_ENCRYPT_BASE 0x6001B000
#define DR_REG_PWM_BASE 0x6001C000 //no
#define DR_REG_TIMERGROUP_BASE 0x6001D000 //no
#define DR_REG_TIMERGROUP1_BASE 0x6001E000 //no
#define DR_REG_BB_BASE 0x6001F000
#define DR_REG_GPIO_SD_BASE 0x60004f00
#else
#define DR_REG_DPORT_BASE 0x3ff00000
#define DR_REG_UART_BASE 0x3ff40000
#define DR_REG_SPI1_BASE 0x3ff42000 //no
#define DR_REG_SPI0_BASE 0x3ff43000 //no
#define DR_REG_GPIO_BASE 0x3ff44000 //no
#define DR_REG_FE2_BASE 0x3ff45000
#define DR_REG_FE_BASE 0x3ff46000
#define DR_REG_TIMER_BASE 0x3ff47000 //no
#define DR_REG_RTCCNTL_BASE 0x3ff48000
#define DR_REG_RTCIO_BASE 0x3ff48400
#define DR_REG_RTCMEM0_BASE 0x3ff61000
#define DR_REG_RTCMEM1_BASE 0x3ff62000
#define DR_REG_RTCMEM2_BASE 0x3ff63000
#define DR_REG_IO_MUX_BASE 0x3ff49000 //no
#define DR_REG_WDG_BASE 0x3ff4A000 //no
#define DR_REG_HINF_BASE 0x3ff4B000 //no
#define DR_REG_UHCI1_BASE 0x3ff4C000
//#define DR_REG_MISC_BASE 0x6000D000 //no use
#define DR_REG_I2C_BASE 0x3ff4E000 //no
#define DR_REG_I2S_BASE 0x3ff4F000
#define DR_REG_I2S1_BASE 0x3ff6D000
#define DR_REG_UART1_BASE 0x3ff50000
#define DR_REG_BT_BASE 0x3ff51000
//#define DR_REG_BT_BUFFER_BASE 0x60012000 //no use
#define DR_REG_I2C_EXT_BASE 0x3ff53000 //no
#define DR_REG_UHCI0_BASE 0x3ff54000
#define DR_REG_SLCHOST_BASE 0x3ff55000
#define DR_REG_RMT_BASE 0x3ff56000
#define DR_REG_PCNT_BASE 0x3ff57000
#define DR_REG_SLC_BASE 0x3ff58000
#define DR_REG_LEDC_BASE 0x3ff59000
#define DR_REG_EFUSE_BASE 0x3ff5A000
#define DR_REG_SPI_ENCRYPT_BASE 0x3ff5B000
#define DR_REG_PWM_BASE 0x3ff5C000 //no
#define DR_REG_TIMERS_BASE 0x3ff5F000 //no
#define DR_REG_TIMERGROUP1_BASE 0x3ff5E000 //no
#define DR_REG_BB_BASE 0x3ff5F000
#define DR_REG_GPIO_SD_BASE 0x3ff44f00
#endif
//}}
#define REG_SPI_BASE(i) (DR_REG_SPI0_BASE - i*(0x1000))
#define PERIPHS_TIMER_BASEDDR DR_REG_TIMER_BASE
#define PERIPHS_SPI_ENCRYPT_BASEADDR DR_REG_SPI_ENCRYPT_BASE
#define UART0_UNHOLD_MASK 0x3
#define UART1_UNHOLD_MASK 0x60
#define SDIO_UNHOLD_MASK 0xfc
#define SPI_UNHOLD_MASK 0xfc
// TIMER reg {{
#define TIMER_REG_READ(addr) READ_PERI_REG(addr)
#define TIMER_REG_WRITE(addr, val) WRITE_PERI_REG(addr, val)
#define TIMER_SET_REG_MASK(reg, mask) WRITE_PERI_REG(reg, (READ_PERI_REG(reg)|(mask)))
/* Returns the current time according to the timer timer. */
#define NOW() TIMER_REG_READ(FRC2_COUNT_ADDRESS)
//load initial_value to timer1
#define FRC1_LOAD_ADDRESS (PERIPHS_TIMER_BASEDDR +0x00)
#define FRC1_LOAD_DATA_MSB 22
#define FRC1_LOAD_DATA_LSB 0
#define FRC1_LOAD_DATA_MASK 0x007fffff
//timer1's counter value(count from initial_value to 0)
#define FRC1_COUNT_ADDRESS (PERIPHS_TIMER_BASEDDR +0x04)
#define FRC1_COUNT_DATA_MSB 22
#define FRC1_COUNT_DATA_LSB 0
#define FRC1_COUNT_DATA_MASK 0x007fffff
#define FRC1_CTRL_ADDRESS (PERIPHS_TIMER_BASEDDR +0x08)
#define FRC1_CTRL_DATA_MSB 7
#define FRC1_CTRL_DATA_LSB 0
#define FRC1_CTRL_DATA_MASK 0x000000ff
//clear timer1's interrupt when write this address
#define FRC1_INT_ADDRESS (PERIPHS_TIMER_BASEDDR +0x0c)
#define FRC1_INT_CLR_MSB 0
#define FRC1_INT_CLR_LSB 0
#define FRC1_INT_CLR_MASK 0x00000001
//only used for simulation
#define FRC1_TEST_ADDRESS (PERIPHS_TIMER_BASEDDR +0x10)
#define FRC1_TEST_MODE_MSB 0
#define FRC1_TEST_MODE_LSB 0
#define FRC1_TEST_MODE_MASK 0x00000001
//load initial_value to timer2
#define FRC2_LOAD_ADDRESS (PERIPHS_TIMER_BASEDDR +0x20)
#define FRC2_LOAD_DATA_MSB 31
#define FRC2_LOAD_DATA_LSB 0
#define FRC2_LOAD_DATA_MASK 0xffffffff
//timer2's counter value(count from initial_value to 0)
#define FRC2_COUNT_ADDRESS (PERIPHS_TIMER_BASEDDR +0x24)
#define FRC2_COUNT_DATA_MSB 31
#define FRC2_COUNT_DATA_LSB 0
#define FRC2_COUNT_DATA_MASK 0xffffffff
#define FRC2_CTRL_ADDRESS (PERIPHS_TIMER_BASEDDR +0x28)
#define FRC2_CTRL_DATA_MSB 7
#define FRC2_CTRL_DATA_LSB 0
#define FRC2_CTRL_DATA_MASK 0x000000ff
//clear interrupt when write this address
#define FRC2_INT_ADDRESS (PERIPHS_TIMER_BASEDDR +0x2c)
#define FRC2_INT_CLR_MSB 0
#define FRC2_INT_CLR_LSB 0
#define FRC2_INT_CLR_MASK 0x00000001
//set Alarm_value for timer2 to generate interrupt
#define FRC2_ALARM_ADDRESS (PERIPHS_TIMER_BASEDDR +0x30)
#define FRC2_ALARM_DATA_MSB 31
#define FRC2_ALARM_DATA_LSB 0
#define FRC2_ALARM_DATA_MASK 0xffffffff
// }}
#define SPI_ENCRYPT_CNTL (PERIPHS_SPI_ENCRYPT_BASEADDR + 0x20)
#define SPI_ENCRYPT_CNTL_ENA BIT(0)
#define SPI_ENCRYPT_ADDR (PERIPHS_SPI_ENCRYPT_BASEADDR + 0x24)
#define SPI_ENCRYPT_CHECKDONE (PERIPHS_SPI_ENCRYPT_BASEADDR + 0x28)
#define SPI_ENCRYPT_CHECKDONE_STATUS BIT(0)
#endif /* _ESP32_SOC_H_ */