142 lines
2.4 KiB
C
142 lines
2.4 KiB
C
#ifndef _INTERNALS_RTC_H
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#define _INTERNALS_RTC_H
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#include <rtc.h>
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#include <stddef.h>
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#ifndef RTC_CB_ARRAY_SIZE
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#define RTC_CB_ARRAY_SIZE 5
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#endif
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/*
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struct rtc_cb
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An RTC callback.
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*/
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struct rtc_cb
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{
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enum RTCFrequency freq;
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int id;
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void (*callback)(void);
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int repeats;
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};
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// The callback array.
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struct rtc_cb cb_array[RTC_CB_ARRAY_SIZE];
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/*
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struct mod_rtc
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This structure describes the arrangement of RTC register in the memory.
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Curious thing, on SH7705, registers RYRAR and RCR3 are at a completely
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different address than the other ones. This module does not use these
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registers, so they were not included in the structure.
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*/
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#pragma pack(push, 1)
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struct mod_rtc
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{
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unsigned char const R64CNT;
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unsigned char _1;
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union {
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unsigned char BYTE;
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struct {
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unsigned :1;
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unsigned TENS :3;
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unsigned ONES :4;
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};
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} RSECCNT;
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unsigned char _2;
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union {
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unsigned char BYTE;
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struct {
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unsigned :1;
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unsigned TENS :3;
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unsigned ONES :4;
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};
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} RMINCNT;
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unsigned char _3;
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union {
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unsigned char BYTE;
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struct {
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unsigned :2;
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unsigned TENS :2;
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unsigned ONES :4;
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};
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} RHRCNT;
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unsigned char _4;
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// 0 = Sunday, 1 = Monday, ..., 6 = Saturday, 7 = prohibited setting.
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unsigned char RWKCNT;
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unsigned char _5;
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union {
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unsigned char BYTE;
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struct {
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unsigned :2;
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unsigned TENS :2;
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unsigned ONES :4;
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};
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} RDAYCNT;
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unsigned char _6;
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union {
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unsigned char BYTE;
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struct {
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unsigned :3;
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unsigned TENS :1;
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unsigned ONES :4;
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};
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} RMONCNT;
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unsigned char _7;
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union {
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unsigned short WORD;
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struct {
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unsigned THOUSANDS :4;
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unsigned HUNDREDS :4;
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unsigned TENS :4;
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unsigned ONES :4;
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};
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} RYRCNT;
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unsigned char _8[12];
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union {
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unsigned char BYTE;
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struct {
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unsigned CF :1;
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unsigned :2;
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unsigned CIE :1;
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unsigned AIE :1;
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unsigned :2;
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unsigned AF :1;
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};
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} RCR1;
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unsigned char _9;
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union {
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unsigned char BYTE;
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struct {
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unsigned PEF :1;
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unsigned PES :3;
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unsigned :1;
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unsigned ADJ :1;
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unsigned RESET :1;
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unsigned START :1;
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};
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} RCR2;
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} __attribute__((packed));
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#pragma pack(pop)
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/*
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We don't need to access the registers in a complicated way like the
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function of the timer module. Let's make it simple.
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*/
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#define RTC_SH7705 ((volatile struct mod_rtc *)0xfffffec0)
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#define RTC_SH7305 ((volatile struct mod_rtc *)0xa413fec0)
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#endif // _INTERNALS_RTC_H
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