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836 palkovsky 1
/*
2
 * Copyright (C) 2006 Ondrej Palkovsky
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1790 jermar 29
/** @addtogroup genarch
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
837 palkovsky 35
#include <genarch/fb/font-8x16.h>
1993 decky 36
#include <genarch/fb/visuals.h>
837 palkovsky 37
#include <genarch/fb/fb.h>
836 palkovsky 38
#include <console/chardev.h>
39
#include <console/console.h>
1317 vana 40
#include <sysinfo/sysinfo.h>
1316 jermar 41
#include <mm/slab.h>
839 palkovsky 42
#include <panic.h>
896 jermar 43
#include <memstr.h>
1316 jermar 44
#include <config.h>
1682 palkovsky 45
#include <bitops.h>
46
#include <print.h>
2015 jermar 47
#include <ddi/ddi.h>
2054 jermar 48
#include <arch/types.h>
49
#include <typedefs.h>
836 palkovsky 50
 
862 palkovsky 51
#include "helenos.xbm"
52
 
2015 jermar 53
static parea_t fb_parea;        /**< Physical memory area for fb. */
54
 
836 palkovsky 55
SPINLOCK_INITIALIZE(fb_lock);
56
 
1780 jermar 57
static uint8_t *fbaddress = NULL;
836 palkovsky 58
 
1780 jermar 59
static uint8_t *blankline = NULL;
2054 jermar 60
static uint8_t *dbbuffer = NULL;    /* Buffer for fast scrolling console */
61
static index_t dboffset;
1316 jermar 62
 
1135 decky 63
static unsigned int xres = 0;
64
static unsigned int yres = 0;
65
static unsigned int scanline = 0;
66
static unsigned int pixelbytes = 0;
1875 jermar 67
#ifdef FB_INVERT_COLORS
68
static bool invert_colors = true;
69
#else
70
static bool invert_colors = false;
71
#endif
836 palkovsky 72
 
1135 decky 73
static unsigned int position = 0;
74
static unsigned int columns = 0;
75
static unsigned int rows = 0;
836 palkovsky 76
 
1135 decky 77
#define COL_WIDTH   8
78
#define ROW_BYTES   (scanline * FONT_SCANLINES)
836 palkovsky 79
 
1135 decky 80
#define BGCOLOR     0x000080
81
#define FGCOLOR     0xffff00
82
#define LOGOCOLOR   0x2020b0
83
 
84
#define RED(x, bits)    ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
85
#define GREEN(x, bits)  ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
86
#define BLUE(x, bits)   ((x >> (8 - bits)) & ((1 << bits) - 1))
87
 
1682 palkovsky 88
#define POINTPOS(x, y)  ((y) * scanline + (x) * pixelbytes)
1135 decky 89
 
838 palkovsky 90
/***************************************************************/
91
/* Pixel specific fuctions */
92
 
1682 palkovsky 93
static void (*rgb2scr)(void *, int);
94
static int (*scr2rgb)(void *);
839 palkovsky 95
 
1875 jermar 96
static inline int COLOR(int color)
97
{
98
    return invert_colors ? ~color : color;
99
}
100
 
1682 palkovsky 101
/* Conversion routines between different color representations */
1993 decky 102
static void rgb_byte0888(void *dst, int rgb)
836 palkovsky 103
{
1990 decky 104
    *((int *) dst) = rgb;
836 palkovsky 105
}
106
 
1993 decky 107
static int byte0888_rgb(void *src)
838 palkovsky 108
{
1990 decky 109
    return (*((int *) src)) & 0xffffff;
839 palkovsky 110
}
111
 
1994 decky 112
static void bgr_byte0888(void *dst, int rgb)
113
{
2054 jermar 114
    *((uint32_t *) dst) = BLUE(rgb, 8) << 16 | GREEN(rgb, 8) << 8 | RED(rgb,
115
        8);
1994 decky 116
}
117
 
118
static int byte0888_bgr(void *src)
119
{
120
    int color = *(uint32_t *)(src);
2054 jermar 121
    return ((color & 0xff) << 16) | (((color >> 8) & 0xff) << 8) | ((color
122
        >> 16) & 0xff);
1994 decky 123
}
124
 
1993 decky 125
static void rgb_byte888(void *dst, int rgb)
839 palkovsky 126
{
1780 jermar 127
    uint8_t *scr = dst;
1871 jermar 128
#if defined(FB_INVERT_ENDIAN)
1682 palkovsky 129
    scr[0] = RED(rgb, 8);
130
    scr[1] = GREEN(rgb, 8);
131
    scr[2] = BLUE(rgb, 8);
1298 vana 132
#else
1682 palkovsky 133
    scr[2] = RED(rgb, 8);
134
    scr[1] = GREEN(rgb, 8);
135
    scr[0] = BLUE(rgb, 8);
136
#endif
839 palkovsky 137
}
138
 
1993 decky 139
static int byte888_rgb(void *src)
839 palkovsky 140
{
1780 jermar 141
    uint8_t *scr = src;
1871 jermar 142
#if defined(FB_INVERT_ENDIAN)
1682 palkovsky 143
    return scr[0] << 16 | scr[1] << 8 | scr[2];
1298 vana 144
#else
1682 palkovsky 145
    return scr[2] << 16 | scr[1] << 8 | scr[0];
1298 vana 146
#endif  
838 palkovsky 147
}
148
 
1993 decky 149
/**  16-bit depth (5:5:5) */
150
static void rgb_byte555(void *dst, int rgb)
151
{
152
    /* 5-bit, 5-bits, 5-bits */
2054 jermar 153
    *((uint16_t *) dst) = RED(rgb, 5) << 10 | GREEN(rgb, 5) << 5 | BLUE(rgb,
154
        5);
1993 decky 155
}
156
 
157
/** 16-bit depth (5:5:5) */
158
static int byte555_rgb(void *src)
159
{
160
    int color = *(uint16_t *)(src);
2054 jermar 161
    return (((color >> 10) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x1f) <<
162
        (8 + 3)) | ((color & 0x1f) << 3);
1993 decky 163
}
164
 
1682 palkovsky 165
/**  16-bit depth (5:6:5) */
1993 decky 166
static void rgb_byte565(void *dst, int rgb)
839 palkovsky 167
{
1682 palkovsky 168
    /* 5-bit, 6-bits, 5-bits */
2054 jermar 169
    *((uint16_t *) dst) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb,        5);
839 palkovsky 170
}
171
 
1682 palkovsky 172
/** 16-bit depth (5:6:5) */
1993 decky 173
static int byte565_rgb(void *src)
839 palkovsky 174
{
1780 jermar 175
    int color = *(uint16_t *)(src);
2054 jermar 176
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) <<
177
        (8 + 2)) | ((color & 0x1f) << 3);
839 palkovsky 178
}
179
 
1837 jermar 180
/** Put pixel - 8-bit depth (color palette/3:2:3)
181
 *
182
 * Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
183
 * will most likely use a color palette. The color appearance
184
 * will be pretty random and depend on the default installed
185
 * palette. This could be fixed by supporting custom palette
186
 * and setting it to simulate the 8-bit truecolor.
187
 */
1993 decky 188
static void rgb_byte8(void *dst, int rgb)
839 palkovsky 189
{
2054 jermar 190
    *((uint8_t *) dst) = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb,
191
        3);
1135 decky 192
}
839 palkovsky 193
 
1837 jermar 194
/** Return pixel color - 8-bit depth (color palette/3:2:3)
195
 *
1993 decky 196
 * See the comment for rgb_byte().
1837 jermar 197
 */
1993 decky 198
static int byte8_rgb(void *src)
1135 decky 199
{
1780 jermar 200
    int color = *(uint8_t *)src;
2054 jermar 201
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8
202
        + 6)) | ((color & 0x7) << 5);
839 palkovsky 203
}
204
 
1682 palkovsky 205
static void putpixel(unsigned int x, unsigned int y, int color)
1135 decky 206
{
1990 decky 207
    (*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));
1682 palkovsky 208
 
209
    if (dbbuffer) {
210
        int dline = (y + dboffset) % yres;
1990 decky 211
        (*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));
1682 palkovsky 212
    }
1135 decky 213
}
839 palkovsky 214
 
1682 palkovsky 215
/** Get pixel from viewport */
216
static int getpixel(unsigned int x, unsigned int y)
217
{
218
    if (dbbuffer) {
219
        int dline = (y + dboffset) % yres;
1990 decky 220
        return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));
1682 palkovsky 221
    }
1990 decky 222
    return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));
1682 palkovsky 223
}
1135 decky 224
 
1682 palkovsky 225
 
1135 decky 226
/** Fill screen with background color */
227
static void clear_screen(void)
839 palkovsky 228
{
1135 decky 229
    unsigned int y;
839 palkovsky 230
 
1682 palkovsky 231
    for (y = 0; y < yres; y++) {
1990 decky 232
        memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);
1682 palkovsky 233
        if (dbbuffer)
2054 jermar 234
            memcpy(&dbbuffer[scanline * y], blankline, xres *
235
                pixelbytes);
1682 palkovsky 236
    }
839 palkovsky 237
}
238
 
1135 decky 239
 
838 palkovsky 240
/** Scroll screen one row up */
241
static void scroll_screen(void)
242
{
1682 palkovsky 243
    if (dbbuffer) {
2054 jermar 244
        count_t first;
245
 
1993 decky 246
        memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);
1682 palkovsky 247
 
248
        dboffset = (dboffset + FONT_SCANLINES) % yres;
2054 jermar 249
        first = yres - dboffset;
838 palkovsky 250
 
2054 jermar 251
        memcpy(fbaddress, &dbbuffer[scanline * dboffset], first *
252
            scanline);
253
        memcpy(&fbaddress[first * scanline], dbbuffer, dboffset *
254
            scanline);
1682 palkovsky 255
    } else {
2054 jermar 256
        uint8_t *lastline = &fbaddress[(rows - 1) * ROW_BYTES];
257
 
258
        memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES],
259
            scanline * yres - ROW_BYTES);
1682 palkovsky 260
        /* Clear last row */
261
        memcpy((void *) lastline, (void *) blankline, ROW_BYTES);
262
    }
838 palkovsky 263
}
264
 
265
 
1135 decky 266
static void invert_pixel(unsigned int x, unsigned int y)
836 palkovsky 267
{
1682 palkovsky 268
    putpixel(x, y, ~getpixel(x, y));
836 palkovsky 269
}
270
 
271
 
272
/** Draw one line of glyph at a given position */
1135 decky 273
static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)
836 palkovsky 274
{
1135 decky 275
    unsigned int i;
836 palkovsky 276
 
1135 decky 277
    for (i = 0; i < 8; i++)
278
        if (glline & (1 << (7 - i))) {
1682 palkovsky 279
            putpixel(x + i, y, FGCOLOR);
836 palkovsky 280
        } else
1682 palkovsky 281
            putpixel(x + i, y, BGCOLOR);
836 palkovsky 282
}
283
 
838 palkovsky 284
/***************************************************************/
285
/* Character-console functions */
286
 
836 palkovsky 287
/** Draw character at given position */
1780 jermar 288
static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)
836 palkovsky 289
{
1135 decky 290
    unsigned int y;
836 palkovsky 291
 
1135 decky 292
    for (y = 0; y < FONT_SCANLINES; y++)
2054 jermar 293
        draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col *
294
            COL_WIDTH, row * FONT_SCANLINES + y);
836 palkovsky 295
}
296
 
297
/** Invert character at given position */
1135 decky 298
static void invert_char(unsigned int col, unsigned int row)
836 palkovsky 299
{
1135 decky 300
    unsigned int x;
301
    unsigned int y;
836 palkovsky 302
 
1135 decky 303
    for (x = 0; x < COL_WIDTH; x++)
304
        for (y = 0; y < FONT_SCANLINES; y++)
2054 jermar 305
            invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES +
306
                y);
836 palkovsky 307
}
308
 
309
/** Draw character at default position */
310
static void draw_char(char chr)
311
{
1135 decky 312
    draw_glyph(chr, position % columns, position / columns);
836 palkovsky 313
}
314
 
1135 decky 315
static void draw_logo(unsigned int startx, unsigned int starty)
862 palkovsky 316
{
1135 decky 317
    unsigned int x;
318
    unsigned int y;
319
    unsigned int byte;
320
    unsigned int rowbytes;
862 palkovsky 321
 
1135 decky 322
    rowbytes = (helenos_width - 1) / 8 + 1;
862 palkovsky 323
 
1135 decky 324
    for (y = 0; y < helenos_height; y++)
325
        for (x = 0; x < helenos_width; x++) {
326
            byte = helenos_bits[rowbytes * y + x / 8];
862 palkovsky 327
            byte >>= x % 8;
328
            if (byte & 1)
2054 jermar 329
                putpixel(startx + x, starty + y,
330
                    COLOR(LOGOCOLOR));
862 palkovsky 331
        }
332
}
333
 
838 palkovsky 334
/***************************************************************/
335
/* Stdout specific functions */
336
 
836 palkovsky 337
static void invert_cursor(void)
338
{
1135 decky 339
    invert_char(position % columns, position / columns);
836 palkovsky 340
}
341
 
342
/** Print character to screen
343
 *
344
 *  Emulate basic terminal commands
345
 */
346
static void fb_putchar(chardev_t *dev, char ch)
347
{
1287 vana 348
    spinlock_lock(&fb_lock);
1135 decky 349
 
350
    switch (ch) {
1888 jermar 351
    case '\n':
352
        invert_cursor();
353
        position += columns;
354
        position -= position % columns;
355
        break;
356
    case '\r':
357
        invert_cursor();
358
        position -= position % columns;
359
        break;
360
    case '\b':
361
        invert_cursor();
362
        if (position % columns)
363
            position--;
364
        break;
365
    case '\t':
366
        invert_cursor();
367
        do {
368
            draw_char(' ');
838 palkovsky 369
            position++;
1888 jermar 370
        } while ((position % 8) && position < columns * rows);
371
        break;
372
    default:
373
        draw_char(ch);
374
        position++;
836 palkovsky 375
    }
1135 decky 376
 
377
    if (position >= columns * rows) {
836 palkovsky 378
        position -= columns;
379
        scroll_screen();
380
    }
1135 decky 381
 
836 palkovsky 382
    invert_cursor();
1135 decky 383
 
1287 vana 384
    spinlock_unlock(&fb_lock);
836 palkovsky 385
}
386
 
387
static chardev_t framebuffer;
388
static chardev_operations_t fb_ops = {
389
    .write = fb_putchar,
390
};
391
 
392
 
393
/** Initialize framebuffer as a chardev output device
394
 *
1993 decky 395
 * @param addr   Physical address of the framebuffer
396
 * @param x      Screen width in pixels
397
 * @param y      Screen height in pixels
398
 * @param scan   Bytes per one scanline
399
 * @param visual Color model
400
 *
836 palkovsky 401
 */
2054 jermar 402
void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan,
403
    unsigned int visual)
836 palkovsky 404
{
1993 decky 405
    switch (visual) {
406
    case VISUAL_INDIRECT_8:
407
        rgb2scr = rgb_byte8;
408
        scr2rgb = byte8_rgb;
1991 jermar 409
        pixelbytes = 1;
410
        break;
1993 decky 411
    case VISUAL_RGB_5_5_5:
412
        rgb2scr = rgb_byte555;
413
        scr2rgb = byte555_rgb;
1991 jermar 414
        pixelbytes = 2;
415
        break;
1993 decky 416
    case VISUAL_RGB_5_6_5:
417
        rgb2scr = rgb_byte565;
418
        scr2rgb = byte565_rgb;
419
        pixelbytes = 2;
1991 jermar 420
        break;
1993 decky 421
    case VISUAL_RGB_8_8_8:
422
        rgb2scr = rgb_byte888;
423
        scr2rgb = byte888_rgb;
424
        pixelbytes = 3;
425
        break;
426
    case VISUAL_RGB_8_8_8_0:
427
        rgb2scr = rgb_byte888;
428
        scr2rgb = byte888_rgb;
1991 jermar 429
        pixelbytes = 4;
430
        break;
1993 decky 431
    case VISUAL_RGB_0_8_8_8:
432
        rgb2scr = rgb_byte0888;
433
        scr2rgb = byte0888_rgb;
434
        pixelbytes = 4;
435
        break;
1994 decky 436
    case VISUAL_BGR_0_8_8_8:
437
        rgb2scr = bgr_byte0888;
438
        scr2rgb = byte0888_bgr;
439
        pixelbytes = 4;
440
        break;
1991 jermar 441
    default:
1993 decky 442
        panic("Unsupported visual.\n");
839 palkovsky 443
    }
1371 decky 444
 
445
    unsigned int fbsize = scan * y;
446
 
447
    /* Map the framebuffer */
1780 jermar 448
    fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);
1371 decky 449
 
836 palkovsky 450
    xres = x;
451
    yres = y;
1135 decky 452
    scanline = scan;
836 palkovsky 453
 
1135 decky 454
    rows = y / FONT_SCANLINES;
455
    columns = x / COL_WIDTH;
836 palkovsky 456
 
2015 jermar 457
    fb_parea.pbase = (uintptr_t) addr;
458
    fb_parea.vbase = (uintptr_t) fbaddress;
459
    fb_parea.frames = SIZE2FRAMES(fbsize);
460
    fb_parea.cacheable = false;
461
    ddi_parea_register(&fb_parea);
462
 
1690 palkovsky 463
    sysinfo_set_item_val("fb", NULL, true);
464
    sysinfo_set_item_val("fb.kind", NULL, 1);
465
    sysinfo_set_item_val("fb.width", NULL, xres);
466
    sysinfo_set_item_val("fb.height", NULL, yres);
467
    sysinfo_set_item_val("fb.scanline", NULL, scan);
1993 decky 468
    sysinfo_set_item_val("fb.visual", NULL, visual);
1690 palkovsky 469
    sysinfo_set_item_val("fb.address.physical", NULL, addr);
2015 jermar 470
    sysinfo_set_item_val("fb.address.color", NULL, PAGE_COLOR((uintptr_t)
471
        fbaddress));
1875 jermar 472
    sysinfo_set_item_val("fb.invert-colors", NULL, invert_colors);
1690 palkovsky 473
 
1682 palkovsky 474
    /* Allocate double buffer */
2054 jermar 475
    unsigned int order = fnzb(SIZE2FRAMES(fbsize) - 1) + 1;
476
    dbbuffer = (uint8_t *) frame_alloc(order, FRAME_ATOMIC | FRAME_KA);
1760 palkovsky 477
    if (!dbbuffer)
1682 palkovsky 478
        printf("Failed to allocate scroll buffer.\n");
479
    dboffset = 0;
480
 
481
    /* Initialized blank line */
1780 jermar 482
    blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);
1766 palkovsky 483
    if (!blankline)
484
        panic("Failed to allocate blank line for framebuffer.");
1990 decky 485
    for (y = 0; y < FONT_SCANLINES; y++)
486
        for (x = 0; x < xres; x++)
487
            (*rgb2scr)(&blankline[POINTPOS(x, y)], COLOR(BGCOLOR));
488
 
1682 palkovsky 489
    clear_screen();
490
 
491
    /* Update size of screen to match text area */
492
    yres = rows * FONT_SCANLINES;
493
 
1135 decky 494
    draw_logo(xres - helenos_width, 0);
836 palkovsky 495
    invert_cursor();
496
 
497
    chardev_initialize("fb", &framebuffer, &fb_ops);
498
    stdout = &framebuffer;
499
}
1702 cejka 500
 
1790 jermar 501
/** @}
1702 cejka 502
 */