104 lines
2.0 KiB
C
104 lines
2.0 KiB
C
/*
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* console.c
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*
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* Created on: 20 Jun 2012
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* Author: Thomas Saunders AKA "Badger"
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*/
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#include "ch.h"
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#include "fonts.h"
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#include "glcd.h"
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#include "console.h"
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msg_t lcdConsoleInit(GLCDConsole *console, uint16_t x0, uint16_t y0, uint16_t x1,
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uint16_t y1, const uint8_t *font, uint8_t *buffer, uint16_t bkcolor, uint16_t color) {
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const uint8_t* ptr;
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uint16_t chi;
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uint16_t x,y;
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/* read font, get size */
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/* TODO: this is messy. improve font handling.
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* this assumes that all characters are as wide as A */
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console->fy = font[FONT_TABLE_HEIGHT_IDX];
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chi = *(uint16_t*)(&font[FONT_TABLE_CHAR_LOOKUP_IDX + ('A'-0x20)*2]);
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ptr = font + chi;
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console->fx = *(ptr++);
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/* calculate the size of the console in characters */
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console->sx = (x1-x0)/console->fx;
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console->sy = (y1-y0)/console->fy;
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console->cx = 0;
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console->cy = 0;
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console->buf = buffer;
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console->bidx = 0;
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}
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/*
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* Interface implementation. The interface is write only
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*/
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static size_t writes(void *ip, const uint8_t *bp, size_t n) {
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(void)ip;
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return lcdWriteString(bp, n);
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}
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static size_t reads(void *ip, uint8_t *bp, size_t n) {
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(void)ip;
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(void)bp;
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(void)n;
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return 0;
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}
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static msg_t put(void *ip, uint8_t b) {
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(void)ip;
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return lcdDrawChar((char)b);
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}
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static msg_t get(void *ip) {
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(void)ip;
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return RDY_OK;
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}
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static msg_t putt(void *ip, uint8_t b, systime_t timeout) {
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(void)ip;
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(void)timeout;
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/* TODO: handle timeout */
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return lcdDrawChar((char)b);
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}
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static msg_t gett(void *ip, systime_t timeout) {
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(void)ip;
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(void)timeout;
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return RDY_OK;
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}
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static size_t writet(void *ip, const uint8_t *bp, size_t n, systime_t time) {
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(void)ip;
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(void)time;
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return lcdWriteString(bp, n);
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}
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static size_t readt(void *ip, uint8_t *bp, size_t n, systime_t time) {
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(void)ip;
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(void)bp;
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(void)n;
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(void)time;
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return 0;
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}
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static chnflags_t getflags(void *ip) {
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_chn_get_and_clear_flags_impl(ip);
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}
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static const struct GLCDConsoleVMT vmt = {
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writes, reads, put, get,
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putt, gett, writet, readt,
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getflags
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};
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