57 lines
2 KiB
C
57 lines
2 KiB
C
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/* esp/rtc_regs.h
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*
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* ESP8266 RTC register definitions
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*
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* Not compatible with ESP SDK register access code.
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*/
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#ifndef _ESP_RTC_REGS_H
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#define _ESP_RTC_REGS_H
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#include "esp/types.h"
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#include "common_macros.h"
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#define RTC_BASE 0x60000700
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#define RTC (*(struct RTC_REGS *)(RTC_BASE))
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//FIXME: need to understand/clarify distinction between GPIO_CONF and GPIO_CFG[]
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// Note: GPIO_CFG[3] is also known as PAD_XPD_DCDC_CONF in eagle_soc.h
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struct RTC_REGS {
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uint32_t volatile _unknown0; // 0x00
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uint32_t volatile COUNTER_ALARM; // 0x04
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uint32_t volatile RESET_REASON0; // 0x08 //FIXME: need better name
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uint32_t volatile _unknownc[2]; // 0x0c - 0x10
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uint32_t volatile RESET_REASON1; // 0x14 //FIXME: need better name
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uint32_t volatile RESET_REASON2; // 0x18 //FIXME: need better name
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uint32_t volatile COUNTER; // 0x1c
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uint32_t volatile INT_SET; // 0x20
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uint32_t volatile INT_CLEAR; // 0x24
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uint32_t volatile INT_ENABLE; // 0x28
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uint32_t volatile _unknown2c; // 0x2c
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uint32_t volatile SCRATCH[4]; // 0x30 - 3c
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uint32_t volatile _unknown40[10]; // 0x40 - 0x64
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uint32_t volatile GPIO_OUT; // 0x68
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uint32_t volatile _unknown6c[2]; // 0x6c - 0x70
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uint32_t volatile GPIO_ENABLE; // 0x74
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uint32_t volatile _unknown80[5]; // 0x78 - 0x88
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uint32_t volatile GPIO_IN; // 0x8c
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uint32_t volatile GPIO_CONF; // 0x90
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uint32_t volatile GPIO_CFG[6]; // 0x94 - 0xa8
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};
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_Static_assert(sizeof(struct RTC_REGS) == 0xac, "RTC_REGS is the wrong size");
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/* The following are used in sdk_rtc_get_reset_reason(). Details are still a
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* bit sketchy regarding exactly what they mean/do.. */
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#define RTC_RESET_REASON1_CODE_M 0x0000000f
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#define RTC_RESET_REASON1_CODE_S 0
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#define RTC_RESET_REASON2_CODE_M 0x0000003f
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#define RTC_RESET_REASON2_CODE_S 8
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#define RTC_RESET_REASON0_SOMETHING BIT(21)
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#endif /* _ESP_RTC_REGS_H */
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