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glcd driver: Implement user selectable cell size (if FreeType enabled), big

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numbers using FreeType and 16x24 built-in font. Complete API towards LCDd
and connection types.
This commit is contained in:
mmdolze
2011-11-20 11:15:39 +00:00
parent fdd440219d
commit e45822c37d
6 changed files with 381 additions and 53 deletions
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server/drivers/glcd-low.h
+12 -4
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@@ -13,6 +13,9 @@
#define GLCD_DEFAULT_CELLHEIGHT 8
#define GLCD_MAX_WIDTH 640
#define GLCD_MAX_HEIGHT 480
#define GLCD_DEFAULT_CONTRAST 600
#define GLCD_DEFAULT_BRIGHTNESS 800
#define GLCD_DEFAULT_OFFBRIGHTNESS 100
/** private data for the \c glcd driver */
typedef struct glcd_private_data {
@@ -23,6 +26,11 @@ typedef struct glcd_private_data {
int cellheight; /**< character cell height */
int width; /**< display width in characters */
int height; /**< display height in characters */
int contrast; /**< current contrast */
int brightness; /**< current brightness (for backlight on) */
int offbrightness; /**< current brightness (for backlight off) */
int last_output_state; /**< cache last value to output() */
int backlightstate; /**< state of backlight currently used */
struct hwDependentFns *glcd_functions; /**< pointers to low-level functions */
void *ct_data; /**< Connection type specific data */
void *render_config; /**< Settings for the font renderer */
@@ -39,13 +47,13 @@ typedef struct hwDependentFns {
void (*blit)(PrivateData *p);
/* Switch the backlight on or off */
/* void (*set_backlight)(PrivateData *p, char state); */
void (*set_backlight)(PrivateData *p, int state);
/* Set the contrast (value from 0-1000) */
/* void (*set_contrast)(PrivateData *p, unsigned int value); */
/* Set contrast */
void (*set_contrast)(PrivateData *p, int value);
/* Output "data" to output latch if there is one */
/* void (*output)(PrivateData *p, int data); */
void (*output)(PrivateData *p, int data);
/* Close the interface on shutdown */
void (*close)(PrivateData *p);