From c14a813c6ee78b7f55bfaf40ae4012a87d6348cf Mon Sep 17 00:00:00 2001
From: Tectu <joel@unormal.org>
Date: Mon, 13 Aug 2012 13:40:48 +0200
Subject: ported console (thanks to badger)

---
 console/console.c | 170 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 console/console.c

(limited to 'console/console.c')

diff --git a/console/console.c b/console/console.c
new file mode 100644
index 00000000..55bc3312
--- /dev/null
+++ b/console/console.c
@@ -0,0 +1,170 @@
+/*
+    ChibiOS/RT - Copyright (C) 2012
+                 Joel Bodenmann aka Tectu <joel@unormal.org>
+
+    This file is part of ChibiOS-LCD-Driver.
+
+    ChibiOS-LCD-Driver is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS-LCD-Driver is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#include "gdisp.h"
+#include "gdisp_fonts.h"
+#include "console.h"
+
+/*
+ * Interface implementation. The interface is write only
+ */
+static size_t writes(void *ip, const uint8_t *bp, size_t n) {
+	return lcdConsoleWrite((GLCDConsole *)ip, bp, n);
+}
+
+static size_t reads(void *ip, uint8_t *bp, size_t n) {
+	(void)ip;
+	(void)bp;
+	(void)n;
+
+	return 0;
+}
+
+static msg_t put(void *ip, uint8_t b) {
+	return lcdConsolePut((GLCDConsole *)ip, (char)b);
+}
+
+static msg_t get(void *ip) {
+	(void)ip;
+
+	return RDY_OK;
+}
+
+static msg_t putt(void *ip, uint8_t b, systime_t timeout) {
+	(void)timeout;
+
+	/* TODO: handle timeout */
+
+	return lcdConsolePut((GLCDConsole *)ip, (char)b);
+}
+
+static msg_t gett(void *ip, systime_t timeout) {
+	(void)ip;
+	(void)timeout;
+
+	return RDY_OK;
+}
+
+static size_t writet(void *ip, const uint8_t *bp, size_t n, systime_t time) {
+	(void)time;
+
+	return lcdConsoleWrite((GLCDConsole *)ip, bp, n);
+}
+
+static size_t readt(void *ip, uint8_t *bp, size_t n, systime_t time) {
+	(void)ip;
+	(void)bp;
+	(void)n;
+	(void)time;
+
+	return 0;
+}
+
+static uint16_t getflags(void *ip) {
+	_chn_get_and_clear_flags_impl(ip);
+}
+
+static const struct GLCDConsoleVMT vmt = {
+	writes, reads, put, get,
+	putt, gett, writet, readt,
+	getflags
+};
+
+
+msg_t lcdConsoleInit(GLCDConsole *console, coord_t x0, coord_t y0, coord_t width, coord_t height, font_t font, pixel_t bkcolor, pixel_t color) {
+	const uint8_t* ptr;
+	uint16_t chi;
+	uint16_t x,y;
+
+	console->vmt = &vmt;
+	/* read font, get height */
+	console->fy = font->height;
+
+	/* calculate the size of the console as an integer multiple of characters height*/
+	console->sx = width;
+	console->sy = (((int16_t)(height/console->fy))-1)*console->fy;
+
+	console->cx = 0;
+	console->cy = 0;
+	console->x0 = x0;
+	console->y0 = y0;
+
+	console->bkcolor = bkcolor;
+	console->color = color;
+
+	console->font = font;
+
+	gdispFillArea(x0, y0, x0 + width, y0 + height, console->bkcolor);
+	return RDY_OK;
+}
+
+msg_t lcdConsolePut(GLCDConsole *console, char c) {
+	uint8_t width;
+
+	if(c == '\n') {
+		/* clear the text at the end of the line */
+		if(console->cx < console->sx)
+			gdispFillArea(console->x0 + console->cx, console->y0 + console->cy,
+						console->x0 + console->sx, console->y0 + console->cy + console->fy,
+						console->bkcolor);
+		console->cx = 0;
+		console->cy += console->fy;
+	} else if(c == '\r') {
+		/* TODO: work backwards through the buffer to the start of the current line */
+		//console->cx = 0;
+	} else {
+		width = _getCharWidth(console->font, c);
+		if((console->cx + width) >= console->sx) {
+			/* clear the text at the end of the line */
+			gdispFillArea(console->x0 + console->cx, console->y0 + console->cy,
+						console->x0 + console->cx + width, console->y0 + console->cy + console->fy,
+						console->bkcolor);
+			console->cx = 0;
+			console->cy += console->fy;
+		}
+
+		if((console->cy > console->sy)) {
+			/* scroll the screen */
+			gdispVerticalScroll(console->x0, console->y0, console->x0 + console->sx,
+					console->y0 + console->sy + console->fy, console->fy, console->bkcolor);
+			/* reset the cursor */
+			console->cx = 0;
+			console->cy = console->sy;
+		}
+
+		gdispDrawChar(console->x0 + console->cx, console->y0 + console->cy, c,
+				console->font, console->color);
+
+		/* update cursor */
+		console->cx += width;
+	}
+	return RDY_OK;
+}
+
+msg_t lcdConsoleWrite(GLCDConsole *console, char *bp, size_t n) {
+	size_t i;
+	for(i = 0; i < n; i++)
+		lcdConsolePut(console, bp[i]);
+
+	return RDY_OK;
+}
-- 
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