b031d8dc2c
When necessary, an output parameter is added to provide the size information. Status codes are strictly reserved for providing status information only.
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
#ifndef DEVICE_PRIVATE_H
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#define DEVICE_PRIVATE_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "device.h"
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struct device_t;
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struct device_backend_t;
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typedef struct device_backend_t device_backend_t;
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struct device_t {
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const device_backend_t *backend;
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// Progress callback data.
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progress_callback_t progress;
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void *userdata;
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};
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struct device_backend_t {
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device_type_t type;
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device_status_t (*handshake) (device_t *device, unsigned char data[], unsigned int size);
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device_status_t (*version) (device_t *device, unsigned char data[], unsigned int size);
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device_status_t (*read) (device_t *device, unsigned int address, unsigned char data[], unsigned int size);
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device_status_t (*write) (device_t *device, unsigned int address, const unsigned char data[], unsigned int size);
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device_status_t (*dump) (device_t *device, unsigned char data[], unsigned int size, unsigned int *result);
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device_status_t (*foreach) (device_t *device, dive_callback_t callback, void *userdata);
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device_status_t (*close) (device_t *device);
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};
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#define INFINITE ((unsigned int)-1)
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typedef struct device_progress_state_t {
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progress_callback_t callback;
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void *userdata;
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unsigned int current, maximum;
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} device_progress_state_t;
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void
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progress_init (device_progress_state_t *progress, device_t *device, unsigned int maximum);
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void
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progress_event (device_progress_state_t *progress, device_event_t event, unsigned int value);
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void
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progress_set_maximum (device_progress_state_t *progress, unsigned int value);
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void
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device_init (device_t *device, const device_backend_t *backend);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* DEVICE_PRIVATE_H */
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