55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/** \file server/drivers/glcd-low.h
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* Interface to low level code to access graphical displays.
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*
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* \note This file should not include hardware dependent header files (libusb,
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* libftdi, libhid, etc.) Those shall be included by the sub drivers.
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*/
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#ifndef GLCD_LOW_H
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#define GLCD_LOW_H
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#define GLCD_DEFAULT_SIZE "128x64"
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#define GLCD_DEFAULT_CELLWIDTH 6
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#define GLCD_DEFAULT_CELLHEIGHT 8
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#define GLCD_MAX_WIDTH 640
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#define GLCD_MAX_HEIGHT 480
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#define BYTES_PER_LINE (p->px_width / 8)
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/** private data for the \c glcd driver */
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typedef struct glcd_private_data {
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unsigned char *framebuf; /**< frame buffer */
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int px_width; /**< display width in dots */
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int px_height; /**< display height in dots */
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int cellwidth; /**< character cell width */
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int cellheight; /**< character cell height */
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int width; /**< display width in characters */
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int height; /**< display height in characters */
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struct hwDependentFns *glcd_functions; /**< pointers to low-level functions */
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void *ct_data; /**< Connection type specific data */
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} PrivateData;
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/** Structure holding pointers to display specific functions */
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typedef struct hwDependentFns {
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/* report and debug helper. Set by global glcd init */
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void (*drv_report)(const int level, const char *format,... /* args */ );
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void (*drv_debug)(const int level, const char *format,... /* args */ );
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/* Transfer the framebuffer to the display */
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void (*blit)(PrivateData *p);
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/* Switch the backlight on or off */
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/* void (*set_backlight)(PrivateData *p, char state); */
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/* Set the contrast (value from 0-1000) */
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/* void (*set_contrast)(PrivateData *p, unsigned int value); */
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/* Output "data" to output latch if there is one */
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/* void (*output)(PrivateData *p, int data); */
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/* Close the interface on shutdown */
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void (*close)(PrivateData *p);
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} GLCD_functions;
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#endif
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