forked from haraldwolff/avr-fw-modules
76 lines
1.2 KiB
C
Executable File
76 lines
1.2 KiB
C
Executable File
#include <sys/i2ceeprom.h>
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#include <sys/assert.h>
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#include <stdint.h>
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#include <rb2/regbus.h>
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#include <hwo/i2c.h>
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struct _i2cee i2cee;
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int32_t eeptr;
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int32_t eevalue;
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int32_t eestatus;
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void i2cee_identify(void){
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uint8_t i;
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uint8_t buffer[4];
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uint16_t result;
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for (i=0;i<8;i++){
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buffer[0] = 0x00;
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buffer[1] = 0x00;
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result = (i2c_transfer( 0xA0 + (i<<1), buffer, 2 ));
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if (result == 2){
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i2cee.emask |= (1<<i);
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i2cee.size += 1L<<16;
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};
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};
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};
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uint8_t i2cee_register_proc(RB2_REGISTER *reg,RB2_TELEGRAM *telegram){
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if (telegram->flags.read){
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switch (telegram->regno){
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case 0x9000:
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telegram->i32 = i2cee_size();
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return 0;
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case 0x9001:
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telegram->i32 = i2cee.emask;
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return 0;
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case 0x9010:
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telegram->i32 = eeptr;
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return 0;
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case 0x9011:
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telegram->i32 = eevalue;
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return 0;
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case 0x9012:
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telegram->i32 = eestatus;
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return 0;
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};
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} else {
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switch (telegram->regno){
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case 0x9010:
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eeptr = telegram->i32;
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i2cee_load(eeptr,&eevalue,4);
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return 0;
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case 0x9011:
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eevalue = telegram->i32;
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eestatus = i2cee_save(eeptr,&eevalue,4);
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return 0;
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case 0x9012:
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return 0;
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};
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};
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return -1;
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};
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