Revision 8f06320f245376f78b105a69cdbcc1d181748ea8 authored by alex@thinkpad on 21 April 2016, 06:59:53 UTC, committed by alex@thinkpad on 21 April 2016, 06:59:53 UTC
1 parent f9a813b
ptp-chdk.h
#ifndef __PTP_CHDK_H
#define __PTP_CHDK_H
// N.B.: not checking to see if CAM_CHDK_PTP is set as ptp.h is currently
// only included by ptp.c (which already checks this before including ptp.h)
#define PTP_CHDK_VERSION_MAJOR 0 // increase only with backwards incompatible changes (and reset minor)
#define PTP_CHDK_VERSION_MINOR 1 // increase with extensions of functionality
#define PTP_OC_CHDK 0x9999
// N.B.: unused parameters should be set to 0
enum {
PTP_CHDK_Version = 0, // return param1 is major version number
// return param2 is minor version number
PTP_CHDK_GetMemory, // param2 is base address (not NULL; circumvent by taking 0xFFFFFFFF and size+1)
// param3 is size (in bytes)
// return data is memory block
PTP_CHDK_SetMemory, // param2 is address
// param3 is size (in bytes)
// data is new memory block
PTP_CHDK_CallFunction, // data is array of function pointer and (long) arguments (max: 10 args)
// return param1 is return value
PTP_CHDK_TempData, // data is data to be stored for later
// param2 is for the TD flags below
PTP_CHDK_UploadFile, // data is 4-byte length of filename, followed by filename and contents
PTP_CHDK_DownloadFile, // preceded by PTP_CHDK_TempData with filename
// return data are file contents
PTP_CHDK_ExecuteScript, // data is script to be executed
// param2 is language of script
// return param1 is script id, like a process id
// return param2 is status, PTP_CHDK_S_ERRTYPE*
PTP_CHDK_ScriptStatus, // Script execution status
// return param1 bits
// PTP_CHDK_SCRIPT_STATUS_RUN is set if a script running, cleared if not
// PTP_CHDK_SCRIPT_STATUS_MSG is set if script messages from script waiting to be read
// all other bits and params are reserved for future use
PTP_CHDK_ScriptSupport, // Which scripting interfaces are supported in this build
// param1 CHDK_PTP_SUPPORT_LUA is set if lua is supported, cleared if not
// all other bits and params are reserved for future use
PTP_CHDK_ReadScriptMsg, // read next message from camera script system
// return param1 is chdk_ptp_s_msg_type
// return param2 is message subtype:
// for script return and users this is ptp_chdk_script_data_type
// for error ptp_chdk_script_error_type
// return param3 is script id of script that generated the message
// return param4 is length of the message data.
// return data is message.
// A minimum of 1 bytes of zeros is returned if the message has no data (empty string or type NONE)
PTP_CHDK_WriteScriptMsg, // write a message for scripts running on camera
// input param2 is target script id, 0=don't care. Messages for a non-running script will be discarded
// data length is handled by ptp data phase
// input messages do not have type or subtype, they are always a string destined for the script (similar to USER/string)
// output param1 is ptp_chdk_script_msg_status
PTP_CHDK_GDBStub_Upload,
// param2 is the transfer buffer size
PTP_CHDK_GDBStub_Download,
// param2 is the transfer buffer size
} ptp_chdk_command;
// data types as used by TempData and ExecuteScript
enum {
PTP_CHDK_TYPE_NOTHING = 0,
PTP_CHDK_TYPE_NIL,
PTP_CHDK_TYPE_BOOLEAN,
PTP_CHDK_TYPE_INTEGER,
PTP_CHDK_TYPE_STRING
} ptp_chdk_type;
// TempData flags
#define PTP_CHDK_TD_DOWNLOAD 0x1 // download data instead of upload
#define PTP_CHDK_TD_CLEAR 0x2 // clear the stored data; with DOWNLOAD this
// means first download, then clear and
// without DOWNLOAD this means no uploading,
// just clear
// ExecuteScript flags
#define PTP_CHDK_ES_WAIT 0x1 // do not return after script initialisation
// but wait until execution has finished
// (should only be used with short execution
// times)
#define PTP_CHDK_ES_RESULT 0x2 // only in combination with WAIT; return
// param1 will be the ptp_chdk_type of the
// code result and param2 the value (booleans
// and integers) or length (strings)
// Script Languages
#define PTP_CHDK_SL_LUA 0
#define PTP_CHDK_SL_UBASIC 1
#endif // __PTP_CHDK_H
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