cl_data.h

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// PTP data structures - some very similar to the exact MTP/PTP spec.
#ifndef CL_DATA_H
#define CL_DATA_H

 
struct PtpStorageIds {
    uint32_t length;
    uint32_t data[4];
};
 
// To store unpacked device info data, after parsing
struct PtpDeviceInfo {
    uint16_t standard_version;
    uint32_t vendor_ext_id;
    uint16_t version;
    char extensions[128];
    uint16_t functional_mode;
 
    int ops_supported_length;
    uint16_t ops_supported[256];
 
    int events_supported_length;
    uint16_t events_supported[256];
 
    int props_supported_length;
    uint16_t props_supported[512];
 
    int capture_formats_length;
    uint16_t capture_formats[32];
 
    int playback_formats_length;
    uint16_t playback_formats[32];
 
    char manufacturer[128];
    char model[128];
    char device_version[64];
    char serial_number[128];
};
 
struct PtpStorageInfo {
    uint16_t storage_type;
    uint16_t fs_type;
    uint16_t access_capability;
    uint64_t max_capacity;
    uint64_t free_space;
    uint32_t free_objects;
    char storage_desc[128];
    char volume_identifier[128];
};
 
struct PtpObjectInfo {
    uint32_t storage_id;
    uint16_t obj_format;
    uint16_t protection;
    uint32_t compressed_size;
    uint16_t thumb_format;
    uint32_t thumb_compressed_size;
    uint32_t thumb_width;
    uint32_t thumb_height;
    uint32_t img_width;
    uint32_t img_height;
    uint32_t img_bit_depth;
    uint32_t parent_obj;
    uint16_t assoc_type; // association
    uint32_t assoc_desc;
    uint32_t sequence_num;
 
    char filename[64];
    char date_created[32];
    char date_modified[32];
    char keywords[64];
};
 
struct PtpEnumerationForm {
    uint16_t length;
    uint8_t data[];
};
 
struct PtpRangeForm {
    int min;
    int max;
    int step;
};
 
struct PtpPropDesc {
    uint16_t code;
    uint16_t data_type;
    uint8_t read_only; // (get/set)
 
    // uint32_t variables will be used for all types <= 4 bytes
    uint32_t default_value32;
    uint32_t current_value32;
    void *current_value;
    void *default_value;
 
    uint8_t form_type;
    struct PtpRangeForm range_form;
    struct PtpEnumerationForm *enum_form;
};
 
struct PtpObjPropDesc {
    uint32_t property_code;
    uint32_t data_type;
    uint8_t get_set;
    uint32_t default_value;
    uint32_t group_code;
    uint32_t form_flag;
    // mystery data type follows if form_flag == 0
};
 
struct PtpCanonEvent {
    int type;
    int code;
    int value;
    int def;
};
 
struct PtpEOSViewFinderData {
    uint32_t length;
    uint32_t type;
    // standard JPG follows
};
 
struct PtpEOSObject {
    uint32_t a;
    uint32_t b;
    uint32_t c;
    uint32_t d;
    uint32_t e;
};
 
struct PtpMlLvInfo {
    uint32_t lv_pitch;
    uint32_t lv_width;
    uint32_t lcd_palette[256];
};
 
struct PtpMlLvHeader {
    uint8_t digic;
    uint8_t v1;
    uint8_t v2;
    uint8_t v3;
};
 
enum PtpMlBmpLvOption {
    PTP_ML_BMP_LV_GET_FRAME = 0,
    PTP_ML_BMP_LV_GET_SPEC = 1,
};
 
enum PtpCHDKCommands {
    PTP_CHDK_Version = 0,
    PTP_CHDK_UploadFile = 5,
};
 
int ptp_pack_object_info(struct PtpRuntime *r, struct PtpObjectInfo *oi, uint8_t *buf, int max);
 
int ptp_parse_prop_value(struct PtpRuntime *r);
int ptp_parse_device_info(struct PtpRuntime *r, struct PtpDeviceInfo *di);
int ptp_device_info_json(const struct PtpDeviceInfo *di, char *buffer, int max);
int ptp_parse_prop_desc(struct PtpRuntime *r, struct PtpPropDesc *oi);
int ptp_prop_desc_json(const struct PtpPropDesc *pd, char *buffer, int max);
int ptp_parse_object_info(struct PtpRuntime *r, struct PtpObjectInfo *oi);
int ptp_storage_info_json(const struct PtpStorageInfo *so, char *buffer, int max);
int ptp_object_info_json(const struct PtpObjectInfo *so, char *buffer, int max);
int ptp_parse_storage_info(struct PtpRuntime *r, struct PtpStorageInfo *si);
int ptp_eos_events(struct PtpRuntime *r, struct PtpGenericEvent **p);
void *ptp_open_eos_events(struct PtpRuntime *r);
void *ptp_get_eos_event(struct PtpRuntime *r, void *e, struct PtpCanonEvent *ce);
 
int ptp_eos_events_json(struct PtpRuntime *r, char *buffer, int max);
 
// Standard property value converters (conv.c)
int ptp_eos_get_shutter(int data, int dir);
int ptp_eos_get_iso(int data, int dir);
int ptp_eos_get_aperture(int data, int dir);
int ptp_eos_get_white_balance(int data, int dir);
int ptp_eos_get_imgformat_value(uint32_t data[5]);
 
void *ptp_pack_chdk_upload_file(struct PtpRuntime *r, char *in, char *out, int *length);
 
#endif