mirror of
https://github.com/eddyem/stm32samples.git
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119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/*
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* This file is part of the canonmanage project.
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* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stm32f1.h>
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// all data sent in big-endian format
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// max length of commands buffer
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#define MAXCMDLEN (32)
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// connection timeout (100ms): do nothing until this timeout
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#define CONN_TIMEOUT (100)
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// polling timeout - 2.5s
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#define POLLING_TIMEOUT (2500)
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// pause after error before next reinit
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#define REINIT_PAUSE (5000)
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// waiting for starting moving - 0.25s
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#define MOVING_PAUSE (250)
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// interval of canon_proc calls (10ms)
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#define CANONPROC_INTERVAL (9)
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// `flooding` interval (250ms)
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#define FLOODING_INTERVAL (249)
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// answer for cmd "POLL"
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#define CANON_POLLANS (0xaa)
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// bad focus value - 32767
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#define BADFOCVAL (0x7fff)
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// flags of 0x90 (144) command:
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// Manual focus active
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#define CANON_MF_FLAG (0x0080)
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// focus dial is active
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#define CANON_DA_FLAG (0x2000)
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// manual focus is on some edge of range
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#define CANON_DE_FLAG (0x0010)
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// focus dial moving
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#define CANON_DM_FLAG (0x0004)
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// maximal
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typedef enum{
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CANON_LONGID = 0x00, // long ID ???
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CANON_ID = 0x01, // lens ID and other info ???
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CANON_REPDIA = 0x02, // repeat last diaphragm change
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CANON_FSTOP = 0x04, // stop focus changing
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CANON_FMAX = 0x05, // set Foc to max
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CANON_FMIN = 0x06, // =//= min
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CANON_POWERON = 0x07, // turn on motors' power
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CANON_POWEROFF = 0x08, // turn off power
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CANON_POLL = 0x0a, // busy poll (ans 0xaa when ready or last command code)
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CANON_DIAPHRAGM = 0x13, // open/close diaphragm by given (int8_t) value of steps
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CANON_FOCMOVE = 0x44, // move focus dial by given amount of steps (int16)
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CANON_FOCBYHANDS= 0x5e, // turn on focus move by hands (to turn off send 4,5 or 6)
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CANON_DIALPOS0 = 0x6b, // DIALPOSx - something like current transfocator dial (limb) position (not stepper!)
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CANON_DIALPOS1 = 0x6c,
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CANON_DIALPOS2 = 0x6d,
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CANON_DIALPOS3 = 0x6e,
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CANON_GETINFO = 0x80, // get information (bytes 0-1 - model, bytes 2-3 - minF, bytes 4-5 - maxF)
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CANON_GETREG = 0x90, // get regulators' state
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CANON_GETMODEL = 0xa0, // get current lens focus (e.g. 200 == LX200)
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CANON_GETSTPPOS = 0xc0, // get focus dial position in steps
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CANON_GETFOCM = 0xc2, // get focus position in meters (not for all lenses): Fm = 2.5*b[1] + b[2]/100; Fm previous = next 2 bytes
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} canon_commands;
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typedef enum{
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LENS_DISCONNECTED, // no lens found
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LENS_SLEEPING, // do nothing until init
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LENS_OVERCURRENT, // short circuit
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LENS_INITIALIZED, // initializing process
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LENS_READY, // ready to operate
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LENS_ERR, // some error occured - reconnect after REINIT_PAUSE
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LENS_S_AMOUNT
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} lens_state;
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typedef enum{
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INI_START, // base init done, start F initialization
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INI_FGOTOZ, // wait until focus gone to minimal value
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INI_FPREPMAX, // prepare to go to max
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INI_FGOTOMAX, // go to max F value
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INI_FPREPOLD, // prepare to go to old
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INI_FGOTOOLD, // go to starting F value
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INI_READY, // all OK
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INI_ERR, // error on any init step
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INI_S_AMOUNT
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} lensinit_state;
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void canon_init();
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void canon_proc();
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int canon_diaphragm(char command);
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int canon_focus(int16_t val);
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int canon_sendcmd(uint8_t cmd);
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int canon_asku16(uint8_t cmd);
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int canon_writeu16(uint8_t cmd, uint16_t u);
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int canon_getinfo();
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uint16_t canon_getstate();
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