root / toolbox / main.c @ 208a6fb2
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#include <stdint.h> |
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#include <util/delay.h> |
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#include "mb.h" |
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#include "mbport.h" |
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#include "tooltron_mb.h" |
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#include "rfid.h" |
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static char coils; |
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static inline void set_coil(char coil, char bit) { |
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coils |= (bit << coil); |
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} |
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eMBErrorCode eMBRegCoilsCB(UCHAR *reg_buf, USHORT addr, USHORT n_coils, |
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eMBRegisterMode mode) {
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if (addr >= N_COILS || n_coils >= N_COILS-addr) {
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return MB_ENOREG;
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} |
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if (mode == MB_REG_WRITE) {
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switch (addr) {
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case MB_COIL_NEW:
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/* nop */
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reg_buf[0] >>= 1; |
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n_coils--; |
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if (n_coils == 0) { |
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return MB_ENOERR;
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} |
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case MB_COIL_EN:
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set_coil(MB_COIL_NEW, 0);
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set_coil(MB_COIL_EN, reg_buf[0] & 1); |
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reg_buf[0] >>= 1; |
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n_coils--; |
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if (n_coils == 0) { |
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return MB_ENOERR;
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} |
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case MB_COIL_REQ_DIS:
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set_coil(MB_COIL_INIT, reg_buf[0] & 1); |
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reg_buf[0] >>= 1; |
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n_coils--; |
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if (n_coils == 0) { |
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return MB_ENOERR;
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} |
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case MB_COIL_INIT:
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set_coil(MB_COIL_INIT, reg_buf[0] & 1); |
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reg_buf[0] >>= 1; |
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n_coils--; |
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if (n_coils == 0) { |
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return MB_ENOERR;
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} |
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} |
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} else if (mode == MB_REG_READ) { |
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reg_buf[0] = (coils >> addr) & ((1 << n_coils) - 1); |
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return MB_ENOERR;
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} |
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return MB_EIO;
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} |
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eMBErrorCode eMBRegDiscreteCB(UCHAR *reg_buf, USHORT addr, USHORT n_coils) {
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return MB_ENOREG;
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} |
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eMBErrorCode eMBRegInputCB(UCHAR *reg_buf, USHORT addr, USHORT n_regs) {
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char serno[RFID_SERNO_SIZE];
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rfid_get_serno(serno); |
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switch (addr) {
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case MB_INP_SERNOL:
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// TODO check that these (and the ones in SERNOH) are in the right order
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*reg_buf++ = serno[0];
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*reg_buf++ = serno[1];
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n_regs--; |
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if (n_regs == 0) { |
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return MB_ENOERR;
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} |
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case MB_INP_SERNOH:
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*reg_buf++ = serno[2];
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*reg_buf++ = serno[3];
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n_regs--; |
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if (n_regs == 0) { |
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return MB_ENOERR;
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} |
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case MB_INP_CURRENT:
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*reg_buf++ = 0;
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*reg_buf++ = 0;
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n_regs--; |
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if (n_regs == 0) { |
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return MB_ENOERR;
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} |
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default:
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return MB_ENOREG;
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} |
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} |
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eMBErrorCode eMBRegHoldingCB(UCHAR *reg_buf, USHORT addr, USHORT n_regs, |
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eMBRegisterMode mode) {
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if (mode == MB_REG_WRITE) {
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return MB_ENOREG;
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} else if (mode == MB_REG_READ) { |
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return MB_ENOREG;
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} else {
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return MB_EIO;
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} |
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} |
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int main() {
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rfid_init(); |
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eMBInit(MB_RTU, SLAVE_ADDR, 0, MB_BAUD, MB_PAR_NONE);
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eMBEnable(); |
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/* Set pin controlling relay to output */
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DDRA |= _BV(DDA1); |
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sei(); |
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while (1) { |
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rfid_read(); |
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/* TODO act on rfid input and coil state */
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eMBPoll(); |
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_delay_ms(200);
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} |
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return 0; |
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} |