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1363 vana 1
/*
2
 * Copyright (C) 2006 Jakub Vana
1404 palkovsky 3
 * Copyright (C) 2006 Ondrej Palkovsky
1363 vana 4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 *
10
 * - Redistributions of source code must retain the above copyright
11
 *   notice, this list of conditions and the following disclaimer.
12
 * - Redistributions in binary form must reproduce the above copyright
13
 *   notice, this list of conditions and the following disclaimer in the
14
 *   documentation and/or other materials provided with the distribution.
15
 * - The name of the author may not be used to endorse or promote products
16
 *   derived from this software without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
 */
29
 
1430 jermar 30
#include <stdlib.h>
31
#include <unistd.h>
32
#include <string.h>
1363 vana 33
#include <ddi.h>
34
#include <sysinfo.h>
35
#include <align.h>
36
#include <as.h>
37
#include <ipc/fb.h>
38
#include <ipc/ipc.h>
1430 jermar 39
#include <ipc/ns.h>
1363 vana 40
#include <ipc/services.h>
41
#include <kernel/errno.h>
1392 palkovsky 42
#include <async.h>
1505 palkovsky 43
 
1404 palkovsky 44
#include "font-8x16.h"
45
#include "helenos.xbm"
1363 vana 46
#include "fb.h"
1505 palkovsky 47
#include "main.h"
48
#include "../console/screenbuffer.h"
1363 vana 49
 
1485 palkovsky 50
#define DEFAULT_BGCOLOR                0x000080
51
#define DEFAULT_FGCOLOR                0xffff00
1363 vana 52
 
53
/***************************************************************/
54
/* Pixel specific fuctions */
55
 
1485 palkovsky 56
typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
57
typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
1363 vana 58
 
1485 palkovsky 59
struct {
1363 vana 60
	__u8 *fbaddress ;
61
 
62
	unsigned int xres ;
63
	unsigned int yres ;
64
	unsigned int scanline ;
65
	unsigned int pixelbytes ;
66
 
67
	putpixel_fn_t putpixel;
68
	getpixel_fn_t getpixel;
1485 palkovsky 69
} screen;
1363 vana 70
 
1485 palkovsky 71
typedef struct {
72
	int initialized;
73
	unsigned int x, y;
74
	unsigned int width, height;
1363 vana 75
 
1485 palkovsky 76
	/* Text support in window */
77
	unsigned int rows, cols;
78
	/* Style for text printing */
1509 palkovsky 79
	style_t style;
1485 palkovsky 80
	/* Auto-cursor position */
1486 palkovsky 81
	int cursor_active, cur_col, cur_row;
1500 palkovsky 82
	int cursor_shown;
1485 palkovsky 83
} viewport_t;
1363 vana 84
 
1485 palkovsky 85
#define MAX_VIEWPORTS 128
86
static viewport_t viewports[128];
87
 
88
/* Allow only 1 connection */
89
static int client_connected = 0;
90
 
1363 vana 91
#define RED(x, bits)	((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
92
#define GREEN(x, bits)	((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
93
#define BLUE(x, bits)	((x >> (8 - bits)) & ((1 << bits) - 1))
94
 
1485 palkovsky 95
#define COL_WIDTH	8
96
#define ROW_BYTES	(screen.scanline * FONT_SCANLINES)
1363 vana 97
 
1485 palkovsky 98
#define POINTPOS(x, y)	((y) * screen.scanline + (x) * screen.pixelbytes)
1363 vana 99
 
100
/** Put pixel - 24-bit depth, 1 free byte */
1485 palkovsky 101
static void putpixel_4byte(unsigned int x, unsigned int y, int color)
1363 vana 102
{
1485 palkovsky 103
	*((__u32 *)(screen.fbaddress + POINTPOS(x, y))) = color;
1363 vana 104
}
105
 
106
/** Return pixel color - 24-bit depth, 1 free byte */
1485 palkovsky 107
static int getpixel_4byte(unsigned int x, unsigned int y)
1363 vana 108
{
1485 palkovsky 109
	return *((__u32 *)(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
1363 vana 110
}
111
 
112
/** Put pixel - 24-bit depth */
1485 palkovsky 113
static void putpixel_3byte(unsigned int x, unsigned int y, int color)
1363 vana 114
{
115
	unsigned int startbyte = POINTPOS(x, y);
116
 
117
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
1485 palkovsky 118
	screen.fbaddress[startbyte] = RED(color, 8);
119
	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
120
	screen.fbaddress[startbyte + 2] = BLUE(color, 8);
1363 vana 121
#else
1485 palkovsky 122
	screen.fbaddress[startbyte + 2] = RED(color, 8);
123
	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
124
	screen.fbaddress[startbyte + 0] = BLUE(color, 8);
1363 vana 125
#endif
126
 
127
}
128
 
129
/** Return pixel color - 24-bit depth */
1485 palkovsky 130
static int getpixel_3byte(unsigned int x, unsigned int y)
1363 vana 131
{
132
	unsigned int startbyte = POINTPOS(x, y);
133
 
134
 
135
 
136
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
1485 palkovsky 137
	return screen.fbaddress[startbyte] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 2];
1363 vana 138
#else
1485 palkovsky 139
	return screen.fbaddress[startbyte + 2] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 0];
1363 vana 140
#endif
141
 
142
 
143
}
144
 
145
/** Put pixel - 16-bit depth (5:6:5) */
1485 palkovsky 146
static void putpixel_2byte(unsigned int x, unsigned int y, int color)
1363 vana 147
{
148
	/* 5-bit, 6-bits, 5-bits */ 
1485 palkovsky 149
	*((__u16 *)(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5);
1363 vana 150
}
151
 
152
/** Return pixel color - 16-bit depth (5:6:5) */
1485 palkovsky 153
static int getpixel_2byte(unsigned int x, unsigned int y)
1363 vana 154
{
1485 palkovsky 155
	int color = *((__u16 *)(screen.fbaddress + POINTPOS(x, y)));
1363 vana 156
	return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
157
}
158
 
159
/** Put pixel - 8-bit depth (3:2:3) */
1485 palkovsky 160
static void putpixel_1byte(unsigned int x, unsigned int y, int color)
1363 vana 161
{
1485 palkovsky 162
	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3);
1363 vana 163
}
164
 
165
/** Return pixel color - 8-bit depth (3:2:3) */
1485 palkovsky 166
static int getpixel_1byte(unsigned int x, unsigned int y)
1363 vana 167
{
1485 palkovsky 168
	int color = screen.fbaddress[POINTPOS(x, y)];
1363 vana 169
	return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
170
}
171
 
1498 palkovsky 172
/** Put pixel into viewport 
173
 *
174
 * @param vp Viewport identification
175
 * @param x X coord relative to viewport
176
 * @param y Y coord relative to viewport
177
 * @param color RGB color 
178
 */
1485 palkovsky 179
static void putpixel(int vp, unsigned int x, unsigned int y, int color)
180
{
181
	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
182
}
1498 palkovsky 183
/** Get pixel from viewport */
1485 palkovsky 184
static int getpixel(int vp, unsigned int x, unsigned int y)
185
{
186
	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
187
}
188
 
1363 vana 189
/** Fill line with color BGCOLOR */
1485 palkovsky 190
static void clear_line(int vp, unsigned int y)
1363 vana 191
{
192
	unsigned int x;
1485 palkovsky 193
	for (x = 0; x < viewports[vp].width; x++)
1509 palkovsky 194
		putpixel(vp, x, y, viewports[vp].style.bg_color);
1363 vana 195
}
196
 
1485 palkovsky 197
/** Fill viewport with background color */
198
static void clear_port(int vp)
1363 vana 199
{
200
	unsigned int y;
1485 palkovsky 201
 
202
	clear_line(vp, 0);
203
	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
204
		memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
205
		       &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
206
		       screen.pixelbytes * viewports[vp].width);
1363 vana 207
	}	
208
}
209
 
1485 palkovsky 210
/** Scroll port up/down 
211
 *
212
 * @param vp Viewport to scroll
213
 * @param rows Positive number - scroll up, negative - scroll down
214
 */
215
static void scroll_port(int vp, int rows)
1363 vana 216
{
1485 palkovsky 217
	int y;
218
	int startline;
219
	int endline;
220
 
221
	if (rows > 0) {
222
		for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
223
			memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
224
			       &screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
225
			       screen.pixelbytes * viewports[vp].width);
226
		/* Clear last row */
227
		startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
228
		endline = viewports[vp].y + viewports[vp].height;
229
		clear_line(vp, startline);
230
		for (y=startline+1;y < endline; y++)
231
			memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
232
			       &screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
233
			       screen.pixelbytes * viewports[vp].width);
234
 
235
	} else if (rows < 0) {
236
		rows = -rows;
237
		for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
238
			memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
239
				&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
240
				screen.pixelbytes * viewports[vp].width);
241
		/* Clear first row */
1509 palkovsky 242
		clear_line(0, viewports[vp].style.bg_color);
1485 palkovsky 243
		for (y=1;y < rows*FONT_SCANLINES; y++)
244
			memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
245
			       &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
246
			       screen.pixelbytes * viewports[vp].width);
247
	}
1363 vana 248
}
249
 
1485 palkovsky 250
static void invert_pixel(int vp,unsigned int x, unsigned int y)
1363 vana 251
{
1485 palkovsky 252
	putpixel(vp, x, y, ~getpixel(vp, x, y));
1363 vana 253
}
254
 
255
 
256
/***************************************************************/
257
/* Character-console functions */
258
 
259
/** Draw character at given position */
1509 palkovsky 260
static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)
1363 vana 261
{
1509 palkovsky 262
	int i;
1363 vana 263
	unsigned int y;
1509 palkovsky 264
	unsigned int glline;
1363 vana 265
 
1509 palkovsky 266
	for (y = 0; y < FONT_SCANLINES; y++) {
267
		glline = fb_font[glyph * FONT_SCANLINES + y];
268
		for (i = 0; i < 8; i++) {
269
			if (glline & (1 << (7 - i)))
270
				putpixel(vp, sx + i, sy + y, style.fg_color);
271
			else
272
				putpixel(vp, sx + i, sy + y, style.bg_color);
273
		}
274
	}
1363 vana 275
}
276
 
277
/** Invert character at given position */
1489 palkovsky 278
static void invert_char(int vp,unsigned int row, unsigned int col)
1363 vana 279
{
280
	unsigned int x;
281
	unsigned int y;
282
 
283
	for (x = 0; x < COL_WIDTH; x++)
284
		for (y = 0; y < FONT_SCANLINES; y++)
1485 palkovsky 285
			invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
1363 vana 286
}
287
 
1485 palkovsky 288
static void draw_logo(int vp,unsigned int startx, unsigned int starty)
1363 vana 289
{
290
	unsigned int x;
291
	unsigned int y;
292
	unsigned int byte;
293
	unsigned int rowbytes;
294
 
295
	rowbytes = (helenos_width - 1) / 8 + 1;
296
 
297
	for (y = 0; y < helenos_height; y++)
298
		for (x = 0; x < helenos_width; x++) {
299
			byte = helenos_bits[rowbytes * y + x / 8];
300
			byte >>= x % 8;
301
			if (byte & 1)
1509 palkovsky 302
				putpixel(vp ,startx + x, starty + y, viewports[vp].style.fg_color);
1363 vana 303
		}
304
}
305
 
306
/***************************************************************/
307
/* Stdout specific functions */
308
 
309
 
1485 palkovsky 310
/** Create new viewport
1363 vana 311
 *
1485 palkovsky 312
 * @return New viewport number
1363 vana 313
 */
1485 palkovsky 314
static int viewport_create(unsigned int x, unsigned int y,unsigned int width, 
315
			   unsigned int height)
1363 vana 316
{
1485 palkovsky 317
	int i;
318
 
1498 palkovsky 319
for (i=0; i < MAX_VIEWPORTS; i++) {
1485 palkovsky 320
		if (!viewports[i].initialized)
1363 vana 321
			break;
322
	}
1485 palkovsky 323
	if (i == MAX_VIEWPORTS)
324
		return ELIMIT;
325
 
1486 palkovsky 326
	if (width ==0 || height == 0 ||
327
	    x+width > screen.xres || y+height > screen.yres)
328
		return EINVAL;
329
	if (width < FONT_SCANLINES || height < COL_WIDTH)
330
		return EINVAL;
331
 
1485 palkovsky 332
	viewports[i].x = x;
333
	viewports[i].y = y;
334
	viewports[i].width = width;
335
	viewports[i].height = height;
1363 vana 336
 
1485 palkovsky 337
	viewports[i].rows = height / FONT_SCANLINES;
338
	viewports[i].cols = width / COL_WIDTH;
339
 
1509 palkovsky 340
	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
341
	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363 vana 342
 
1489 palkovsky 343
	viewports[i].cur_col = 0;
344
	viewports[i].cur_row = 0;
345
	viewports[i].cursor_active = 0;
346
 
1486 palkovsky 347
	viewports[i].initialized = 1;
348
 
1485 palkovsky 349
	return i;
1363 vana 350
}
351
 
352
 
353
/** Initialize framebuffer as a chardev output device
354
 *
355
 * @param addr Address of theframebuffer
356
 * @param x    Screen width in pixels
357
 * @param y    Screen height in pixels
358
 * @param bpp  Bits per pixel (8, 16, 24, 32)
359
 * @param scan Bytes per one scanline
360
 *
361
 */
1501 palkovsky 362
static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
1363 vana 363
{
364
	switch (bpp) {
365
		case 8:
1485 palkovsky 366
			screen.putpixel = putpixel_1byte;
367
			screen.getpixel = getpixel_1byte;
368
			screen.pixelbytes = 1;
1363 vana 369
			break;
370
		case 16:
1485 palkovsky 371
			screen.putpixel = putpixel_2byte;
372
			screen.getpixel = getpixel_2byte;
373
			screen.pixelbytes = 2;
1363 vana 374
			break;
375
		case 24:
1485 palkovsky 376
			screen.putpixel = putpixel_3byte;
377
			screen.getpixel = getpixel_3byte;
378
			screen.pixelbytes = 3;
1363 vana 379
			break;
380
		case 32:
1485 palkovsky 381
			screen.putpixel = putpixel_4byte;
382
			screen.getpixel = getpixel_4byte;
383
			screen.pixelbytes = 4;
1363 vana 384
			break;
385
	}
386
 
387
 
1485 palkovsky 388
	screen.fbaddress = (unsigned char *) addr;
389
	screen.xres = xres;
390
	screen.yres = yres;
391
	screen.scanline = scan;
1363 vana 392
 
1485 palkovsky 393
	/* Create first viewport */
394
	viewport_create(0,0,xres,yres);
1363 vana 395
 
1485 palkovsky 396
	clear_port(0);
397
}
1363 vana 398
 
1500 palkovsky 399
static void cursor_hide(int vp)
400
{
401
	viewport_t *vport = &viewports[vp];
402
 
403
	if (vport->cursor_active && vport->cursor_shown) {
404
		invert_char(vp, vport->cur_row, vport->cur_col);
405
		vport->cursor_shown = 0;
406
	}
407
}
408
 
409
static void cursor_print(int vp)
410
{
411
	viewport_t *vport = &viewports[vp];
412
 
413
	/* Do not check for cursor_shown */
414
	if (vport->cursor_active) {
415
		invert_char(vp, vport->cur_row, vport->cur_col);
416
		vport->cursor_shown = 1;
417
	}
418
}
419
 
420
static void cursor_blink(int vp)
421
{
422
	viewport_t *vport = &viewports[vp];
423
 
424
	if (vport->cursor_shown)
425
		cursor_hide(vp);
426
	else
427
		cursor_print(vp);
428
}
429
 
1498 palkovsky 430
/** Draw character at given position relative to viewport 
431
 * 
432
 * @param vp Viewport identification
433
 * @param c Character to print
434
 * @param row Screen position relative to viewport
435
 * @param col Screen position relative to viewport
436
 */
1509 palkovsky 437
static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style)
1486 palkovsky 438
{
439
	viewport_t *vport = &viewports[vp];
440
 
1500 palkovsky 441
	/* Optimize - do not hide cursor if we are going to overwrite it */
442
	if (vport->cursor_active && vport->cursor_shown && 
443
	    (vport->cur_col != col || vport->cur_row != row))
1489 palkovsky 444
		invert_char(vp, vport->cur_row, vport->cur_col);
1486 palkovsky 445
 
1509 palkovsky 446
	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style);
1489 palkovsky 447
 
448
	vport->cur_col = col;
449
	vport->cur_row = row;
450
 
451
	vport->cur_col++;
452
	if (vport->cur_col>= vport->cols) {
453
		vport->cur_col = 0;
454
		vport->cur_row++;
455
		if (vport->cur_row >= vport->rows)
456
			vport->cur_row--;
1486 palkovsky 457
	}
1500 palkovsky 458
	cursor_print(vp);
1486 palkovsky 459
}
460
 
1505 palkovsky 461
static void draw_text_data(int vp, keyfield_t *data)
462
{
463
	viewport_t *vport = &viewports[vp];
464
	int i;
465
	char c;
466
 
467
	clear_port(vp);
468
	for (i=0; i < vport->cols * vport->rows; i++) {
1509 palkovsky 469
		if (data[i].character == ' ' && style_same(data[i].style,vport->style))
1505 palkovsky 470
			continue;
1509 palkovsky 471
		draw_char(vp, data[i].character, i/vport->rows, i % vport->cols,
472
			  data[i].style);
1505 palkovsky 473
	}
474
	cursor_print(vp);
475
}
476
 
477
 
1498 palkovsky 478
/** Function for handling connections to FB
479
 *
480
 */
1490 palkovsky 481
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363 vana 482
{
1485 palkovsky 483
	ipc_callid_t callid;
484
	ipc_call_t call;
485
	int retval;
486
	int i;
487
	unsigned int row,col;
488
	char c;
1505 palkovsky 489
	keyfield_t *interbuffer = NULL;
490
	size_t intersize = 0;
1486 palkovsky 491
 
1485 palkovsky 492
	int vp = 0;
1486 palkovsky 493
	viewport_t *vport = &viewports[0];
1363 vana 494
 
1485 palkovsky 495
	if (client_connected) {
496
		ipc_answer_fast(iid, ELIMIT, 0,0);
497
		return;
498
	}
1486 palkovsky 499
	client_connected = 1;
1485 palkovsky 500
	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
1363 vana 501
 
1485 palkovsky 502
	while (1) {
1500 palkovsky 503
		callid = async_get_call_timeout(&call,250000);
504
		if (!callid) {
505
			cursor_blink(vp);
506
			continue;
507
		}
1485 palkovsky 508
 		switch (IPC_GET_METHOD(call)) {
509
		case IPC_M_PHONE_HUNGUP:
510
			client_connected = 0;
511
			/* cleanup other viewports */
512
			for (i=1; i < MAX_VIEWPORTS; i++)
1486 palkovsky 513
				vport->initialized = 0;
1485 palkovsky 514
			ipc_answer_fast(callid,0,0,0);
515
			return; /* Exit thread */
1505 palkovsky 516
		case IPC_M_AS_AREA_SEND:
517
			/* We accept one area for data interchange */
518
			intersize = IPC_GET_ARG2(call);
519
			receive_comm_area(callid,&call,(void **)&interbuffer,
520
					  sizeof(*interbuffer)*viewports[0].cols*viewports[0].rows);
521
			continue;
522
 
523
		case FB_DRAW_TEXT_DATA:
524
			if (!interbuffer) {
525
				retval = EINVAL;
526
				break;
527
			}
528
			if (intersize < vport->cols*vport->rows*sizeof(*interbuffer)) {
529
				retval = EINVAL;
530
				break;
531
			}
532
			draw_text_data(vp, interbuffer);
533
			retval = 0;
534
			break;
1485 palkovsky 535
		case FB_PUTCHAR:
536
			c = IPC_GET_ARG1(call);
537
			row = IPC_GET_ARG2(call);
538
			col = IPC_GET_ARG3(call);
1486 palkovsky 539
			if (row >= vport->rows || col >= vport->cols) {
1485 palkovsky 540
				retval = EINVAL;
541
				break;
542
			}
543
			ipc_answer_fast(callid,0,0,0);
1486 palkovsky 544
 
1509 palkovsky 545
			draw_char(vp, c, row, col, vport->style);
1485 palkovsky 546
			continue; /* msg already answered */
547
		case FB_CLEAR:
548
			clear_port(vp);
1500 palkovsky 549
			cursor_print(vp);
1485 palkovsky 550
			retval = 0;
551
			break;
1486 palkovsky 552
 		case FB_CURSOR_GOTO:
553
			row = IPC_GET_ARG1(call);
554
			col = IPC_GET_ARG2(call);
555
			if (row >= vport->rows || col >= vport->cols) {
556
				retval = EINVAL;
557
				break;
558
			}
559
 			retval = 0;
1500 palkovsky 560
			cursor_hide(vp);
1486 palkovsky 561
			vport->cur_col = col;
562
			vport->cur_row = row;
1500 palkovsky 563
			cursor_print(vp);
1486 palkovsky 564
 			break;
565
		case FB_CURSOR_VISIBILITY:
1500 palkovsky 566
			cursor_hide(vp);
567
			vport->cursor_active = IPC_GET_ARG1(call);
568
			cursor_print(vp);
1486 palkovsky 569
			retval = 0;
570
			break;
1485 palkovsky 571
		case FB_GET_CSIZE:
1486 palkovsky 572
			ipc_answer_fast(callid, 0, vport->rows, vport->cols);
1485 palkovsky 573
			continue;
1486 palkovsky 574
		case FB_SCROLL:
575
			i = IPC_GET_ARG1(call);
576
			if (i > vport->rows || i < (- (int)vport->rows)) {
577
				retval = EINVAL;
578
				break;
579
			}
1500 palkovsky 580
			cursor_hide(vp);
1486 palkovsky 581
			scroll_port(vp, i);
1500 palkovsky 582
			cursor_print(vp);
1486 palkovsky 583
			retval = 0;
584
			break;
585
		case FB_VIEWPORT_SWITCH:
586
			i = IPC_GET_ARG1(call);
587
			if (i < 0 || i >= MAX_VIEWPORTS) {
588
				retval = EINVAL;
589
				break;
590
			}
591
			if (! viewports[i].initialized ) {
592
				retval = EADDRNOTAVAIL;
593
				break;
594
			}
1500 palkovsky 595
			cursor_hide(vp);
1486 palkovsky 596
			vp = i;
597
			vport = &viewports[vp];
1500 palkovsky 598
			cursor_print(vp);
1486 palkovsky 599
			retval = 0;
600
			break;
601
		case FB_VIEWPORT_CREATE:
602
			retval = viewport_create(IPC_GET_ARG1(call) >> 16,
603
						 IPC_GET_ARG1(call) & 0xffff,
604
						 IPC_GET_ARG2(call) >> 16,
605
						 IPC_GET_ARG2(call) & 0xffff);
606
			break;
607
		case FB_VIEWPORT_DELETE:
608
			i = IPC_GET_ARG1(call);
609
			if (i < 0 || i >= MAX_VIEWPORTS) {
610
				retval = EINVAL;
611
				break;
612
			}
613
			if (! viewports[i].initialized ) {
614
				retval = EADDRNOTAVAIL;
615
				break;
616
			}
617
			viewports[i].initialized = 0;
618
			retval = 0;
619
			break;
620
		case FB_SET_STYLE:
1509 palkovsky 621
			vport->style.fg_color = IPC_GET_ARG1(call);
622
			vport->style.bg_color = IPC_GET_ARG2(call);
1486 palkovsky 623
			retval = 0;
624
			break;
625
		case FB_GET_RESOLUTION:
626
			ipc_answer_fast(callid, 0, screen.xres,screen.yres);
627
			continue;
1485 palkovsky 628
		default:
629
			retval = ENOENT;
630
		}
631
		ipc_answer_fast(callid,retval,0,0);
1363 vana 632
	}
1485 palkovsky 633
}
1363 vana 634
 
1498 palkovsky 635
/** Initialization of framebuffer */
1490 palkovsky 636
int fb_init(void)
1485 palkovsky 637
{
1501 palkovsky 638
	void *fb_ph_addr;
1490 palkovsky 639
	unsigned int fb_width;
640
	unsigned int fb_height;
641
	unsigned int fb_bpp;
642
	unsigned int fb_scanline;
1501 palkovsky 643
	void *fb_addr;
644
	size_t asz;
1363 vana 645
 
1490 palkovsky 646
	async_set_client_connection(fb_client_connection);
1363 vana 647
 
1501 palkovsky 648
	fb_ph_addr=(void *)sysinfo_value("fb.address.physical");
1490 palkovsky 649
	fb_width=sysinfo_value("fb.width");
650
	fb_height=sysinfo_value("fb.height");
651
	fb_bpp=sysinfo_value("fb.bpp");
652
	fb_scanline=sysinfo_value("fb.scanline");
653
 
1501 palkovsky 654
	asz = fb_scanline*fb_height;
655
	fb_addr = as_get_mappable_page(asz);
1485 palkovsky 656
 
1501 palkovsky 657
	map_physmem(fb_ph_addr, fb_addr, ALIGN_UP(asz,PAGE_SIZE) >>PAGE_WIDTH,
1490 palkovsky 658
		    AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE);
659
 
660
	screen_init(fb_addr, fb_width, fb_height, fb_bpp, fb_scanline);
1363 vana 661
 
1485 palkovsky 662
	return 0;
1363 vana 663
}
1490 palkovsky 664