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836 palkovsky 1
/*
3707 decky 2
 * Copyright (c) 2008 Martin Decky
2071 jermar 3
 * Copyright (c) 2006 Ondrej Palkovsky
836 palkovsky 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
 
3707 decky 30
/** @addtogroup genarch
1702 cejka 31
 * @{
32
 */
33
/** @file
34
 */
35
 
837 palkovsky 36
#include <genarch/fb/font-8x16.h>
3710 decky 37
#include <genarch/fb/logo-196x66.h>
1993 decky 38
#include <genarch/fb/visuals.h>
837 palkovsky 39
#include <genarch/fb/fb.h>
836 palkovsky 40
#include <console/chardev.h>
41
#include <console/console.h>
1317 vana 42
#include <sysinfo/sysinfo.h>
1316 jermar 43
#include <mm/slab.h>
3707 decky 44
#include <align.h>
839 palkovsky 45
#include <panic.h>
896 jermar 46
#include <memstr.h>
1316 jermar 47
#include <config.h>
1682 palkovsky 48
#include <bitops.h>
49
#include <print.h>
2015 jermar 50
#include <ddi/ddi.h>
2054 jermar 51
#include <arch/types.h>
836 palkovsky 52
 
3707 decky 53
SPINLOCK_INITIALIZE(fb_lock);
862 palkovsky 54
 
3707 decky 55
/**< Physical memory area for fb. */
56
static parea_t fb_parea;
2015 jermar 57
 
3707 decky 58
static uint8_t *fb_addr;
59
static uint8_t *backbuf;
60
static uint8_t *glyphs;
3710 decky 61
static uint8_t *bgscan;
836 palkovsky 62
 
3707 decky 63
static unsigned int xres;
64
static unsigned int yres;
1316 jermar 65
 
3710 decky 66
static unsigned int ylogo;
67
static unsigned int ytrim;
68
static unsigned int rowtrim;
69
 
3707 decky 70
static unsigned int scanline;
71
static unsigned int glyphscanline;
836 palkovsky 72
 
3707 decky 73
static unsigned int pixelbytes;
74
static unsigned int glyphbytes;
3710 decky 75
static unsigned int bgscanbytes;
3707 decky 76
 
77
static unsigned int cols;
78
static unsigned int rows;
1135 decky 79
static unsigned int position = 0;
836 palkovsky 80
 
3707 decky 81
#define BG_COLOR     0x000080
82
#define FG_COLOR     0xffff00
836 palkovsky 83
 
3707 decky 84
#define CURSOR       219
1135 decky 85
 
3707 decky 86
#define RED(x, bits)         ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
87
#define GREEN(x, bits)       ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
88
#define BLUE(x, bits)        ((x >> (8 - bits)) & ((1 << bits) - 1))
1135 decky 89
 
3707 decky 90
#define COL2X(col)           ((col) * FONT_WIDTH)
91
#define ROW2Y(row)           ((row) * FONT_SCANLINES)
1135 decky 92
 
3707 decky 93
#define X2COL(x)             ((x) / FONT_WIDTH)
94
#define Y2ROW(y)             ((y) / FONT_SCANLINES)
838 palkovsky 95
 
3707 decky 96
#define FB_POS(x, y)         ((y) * scanline + (x) * pixelbytes)
97
#define BB_POS(col, row)     ((row) * cols + (col))
98
#define GLYPH_POS(glyph, y)  ((glyph) * glyphbytes + (y) * glyphscanline)
839 palkovsky 99
 
1875 jermar 100
 
3707 decky 101
static void (*rgb_conv)(void *, uint32_t);
836 palkovsky 102
 
839 palkovsky 103
 
3707 decky 104
/** ARGB 8:8:8:8 conversion
105
 *
106
 */
107
static void rgb_0888(void *dst, uint32_t rgb)
1994 decky 108
{
3707 decky 109
    *((uint32_t *) dst) = rgb & 0xffffff;
1994 decky 110
}
111
 
3707 decky 112
 
113
/** ABGR 8:8:8:8 conversion
114
 *
115
 */
116
static void bgr_0888(void *dst, uint32_t rgb)
1994 decky 117
{
3707 decky 118
    *((uint32_t *) dst)
119
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
1994 decky 120
}
121
 
3707 decky 122
 
123
/** BGR 8:8:8 conversion
124
 *
125
 */
126
static void rgb_888(void *dst, uint32_t rgb)
839 palkovsky 127
{
1871 jermar 128
#if defined(FB_INVERT_ENDIAN)
3710 decky 129
    ((uint8_t *) dst)[0] = RED(rgb, 8);
130
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
131
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
1298 vana 132
#else
3710 decky 133
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
134
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
135
    ((uint8_t *) dst)[2] = RED(rgb, 8);
1682 palkovsky 136
#endif
839 palkovsky 137
}
138
 
838 palkovsky 139
 
3707 decky 140
/** RGB 5:5:5 conversion
141
 *
142
 */
143
static void rgb_555(void *dst, uint32_t rgb)
1993 decky 144
{
3707 decky 145
    *((uint16_t *) dst)
146
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
1993 decky 147
}
148
 
149
 
3707 decky 150
/** RGB 5:6:5 conversion
151
 *
152
 */
153
static void rgb_565(void *dst, uint32_t rgb)
839 palkovsky 154
{
3707 decky 155
    *((uint16_t *) dst)
156
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
839 palkovsky 157
}
158
 
159
 
3707 decky 160
/** RGB 3:2:3
1837 jermar 161
 *
162
 * Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
163
 * will most likely use a color palette. The color appearance
164
 * will be pretty random and depend on the default installed
165
 * palette. This could be fixed by supporting custom palette
166
 * and setting it to simulate the 8-bit truecolor.
3692 rimsky 167
 *
3709 decky 168
 * Currently we set the palette on the ia32, amd64 and sparc64 port.
3692 rimsky 169
 *
170
 * Note that the byte is being inverted by this function. The reason is
171
 * that we would like to use a color palette where the white color code
3709 decky 172
 * is 0 and the black color code is 255, as some machines (Sun Blade 1500)
3692 rimsky 173
 * use these codes for black and white and prevent to set codes
174
 * 0 and 255 to other colors.
3709 decky 175
 *
1837 jermar 176
 */
3707 decky 177
static void rgb_323(void *dst, uint32_t rgb)
839 palkovsky 178
{
3707 decky 179
    *((uint8_t *) dst)
180
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
1135 decky 181
}
839 palkovsky 182
 
3707 decky 183
 
3710 decky 184
/** Hide logo and refresh screen
185
 *
186
 */
3844 decky 187
static void logo_hide(bool silent)
3710 decky 188
{
189
    ylogo = 0;
190
    ytrim = yres;
191
    rowtrim = rows;
3844 decky 192
    if (!silent)
193
        fb_redraw();
3710 decky 194
}
195
 
196
 
3707 decky 197
/** Draw character at given position
1837 jermar 198
 *
199
 */
3844 decky 200
static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)
1135 decky 201
{
3707 decky 202
    unsigned int x = COL2X(col);
203
    unsigned int y = ROW2Y(row);
204
    unsigned int yd;
205
 
3710 decky 206
    if (y >= ytrim)
3844 decky 207
        logo_hide(silent);
3710 decky 208
 
3707 decky 209
    backbuf[BB_POS(col, row)] = glyph;
210
 
3844 decky 211
    if (!silent) {
212
        for (yd = 0; yd < FONT_SCANLINES; yd++)
213
            memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],
214
                &glyphs[GLYPH_POS(glyph, yd)], glyphscanline);
215
    }
839 palkovsky 216
}
217
 
1682 palkovsky 218
 
3707 decky 219
/** Scroll screen down by one row
220
 *
221
 *
222
 */
3844 decky 223
static void screen_scroll(bool silent)
838 palkovsky 224
{
3733 decky 225
    if (ylogo > 0) {
3844 decky 226
        logo_hide(silent);
3733 decky 227
        return;
228
    }
3710 decky 229
 
3844 decky 230
    if (!silent) {
231
        unsigned int row;
2054 jermar 232
 
3844 decky 233
        for (row = 0; row < rows; row++) {
234
            unsigned int y = ROW2Y(row);
235
            unsigned int yd;
3707 decky 236
 
3844 decky 237
            for (yd = 0; yd < FONT_SCANLINES; yd++) {
238
                unsigned int x;
239
                unsigned int col;
3707 decky 240
 
3844 decky 241
                for (col = 0, x = 0; col < cols; col++,
242
                    x += FONT_WIDTH) {
243
                    uint8_t glyph;
3707 decky 244
 
3844 decky 245
                    if (row < rows - 1) {
246
                        if (backbuf[BB_POS(col, row)] ==
247
                            backbuf[BB_POS(col, row + 1)])
248
                            continue;
249
 
250
                        glyph = backbuf[BB_POS(col, row + 1)];
251
                    } else
252
                        glyph = 0;
253
 
254
                    memcpy(&fb_addr[FB_POS(x, y + yd)],
255
                        &glyphs[GLYPH_POS(glyph, yd)],
256
                        glyphscanline);
257
                }
3707 decky 258
            }
2086 jermar 259
        }
1682 palkovsky 260
    }
3707 decky 261
 
3752 svoboda 262
    memmove(backbuf, backbuf + cols, cols * (rows - 1));
3707 decky 263
    memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);
838 palkovsky 264
}
265
 
266
 
3844 decky 267
static void cursor_put(bool silent)
836 palkovsky 268
{
3844 decky 269
    glyph_draw(CURSOR, position % cols, position / cols, silent);
836 palkovsky 270
}
271
 
272
 
3844 decky 273
static void cursor_remove(bool silent)
836 palkovsky 274
{
3844 decky 275
    glyph_draw(0, position % cols, position / cols, silent);
836 palkovsky 276
}
277
 
838 palkovsky 278
 
836 palkovsky 279
/** Print character to screen
280
 *
3707 decky 281
 * Emulate basic terminal commands.
282
 *
836 palkovsky 283
 */
3844 decky 284
static void fb_putchar(chardev_t *dev, char ch, bool silent)
836 palkovsky 285
{
1287 vana 286
    spinlock_lock(&fb_lock);
1135 decky 287
 
288
    switch (ch) {
1888 jermar 289
    case '\n':
3844 decky 290
        cursor_remove(silent);
3707 decky 291
        position += cols;
292
        position -= position % cols;
1888 jermar 293
        break;
294
    case '\r':
3844 decky 295
        cursor_remove(silent);
3707 decky 296
        position -= position % cols;
1888 jermar 297
        break;
298
    case '\b':
3844 decky 299
        cursor_remove(silent);
3707 decky 300
        if (position % cols)
1888 jermar 301
            position--;
302
        break;
303
    case '\t':
3844 decky 304
        cursor_remove(silent);
1888 jermar 305
        do {
3741 jermar 306
            glyph_draw((uint8_t) ' ', position % cols,
3844 decky 307
                position / cols, silent);
838 palkovsky 308
            position++;
3707 decky 309
        } while ((position % 8) && (position < cols * rows));
1888 jermar 310
        break;
311
    default:
3844 decky 312
        glyph_draw((uint8_t) ch, position % cols,
313
            position / cols, silent);
1888 jermar 314
        position++;
836 palkovsky 315
    }
1135 decky 316
 
3707 decky 317
    if (position >= cols * rows) {
318
        position -= cols;
3844 decky 319
        screen_scroll(silent);
836 palkovsky 320
    }
1135 decky 321
 
3844 decky 322
    cursor_put(silent);
1135 decky 323
 
1287 vana 324
    spinlock_unlock(&fb_lock);
836 palkovsky 325
}
326
 
327
static chardev_t framebuffer;
328
static chardev_operations_t fb_ops = {
329
    .write = fb_putchar,
330
};
331
 
332
 
3707 decky 333
/** Render glyphs
334
 *
335
 * Convert glyphs from device independent font
336
 * description to current visual representation.
337
 *
338
 */
3710 decky 339
static void glyphs_render(void)
3707 decky 340
{
3710 decky 341
    /* Prerender glyphs */
3707 decky 342
    unsigned int glyph;
343
 
344
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
345
        unsigned int y;
346
 
347
        for (y = 0; y < FONT_SCANLINES; y++) {
348
            unsigned int x;
349
 
3741 jermar 350
            for (x = 0; x < FONT_WIDTH; x++) {
351
                void *dst = &glyphs[GLYPH_POS(glyph, y) +
352
                    x * pixelbytes];
353
                uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &
354
                    (1 << (7 - x))) ? FG_COLOR : BG_COLOR;
355
                rgb_conv(dst, rgb);
356
            }
3707 decky 357
        }
358
    }
359
 
3710 decky 360
    /* Prerender background scanline */
361
    unsigned int x;
362
 
363
    for (x = 0; x < xres; x++)
364
        rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);
3707 decky 365
}
366
 
367
 
368
/** Refresh the screen
369
 *
370
 */
371
void fb_redraw(void)
372
{
3710 decky 373
    if (ylogo > 0) {
374
        unsigned int y;
375
 
376
        for (y = 0; y < LOGO_HEIGHT; y++) {
377
            unsigned int x;
378
 
379
            for (x = 0; x < xres; x++)
380
                rgb_conv(&fb_addr[FB_POS(x, y)],
3741 jermar 381
                    (x < LOGO_WIDTH) ?
382
                    fb_logo[y * LOGO_WIDTH + x] :
383
                    LOGO_COLOR);
3710 decky 384
        }
385
    }
386
 
3707 decky 387
    unsigned int row;
388
 
3710 decky 389
    for (row = 0; row < rowtrim; row++) {
390
        unsigned int y = ylogo + ROW2Y(row);
3707 decky 391
        unsigned int yd;
392
 
393
        for (yd = 0; yd < FONT_SCANLINES; yd++) {
394
            unsigned int x;
395
            unsigned int col;
396
 
3741 jermar 397
            for (col = 0, x = 0; col < cols;
398
                col++, x += FONT_WIDTH) {
399
                void *d = &fb_addr[FB_POS(x, y + yd)];
400
                void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,
401
                    row)], yd)];
402
                memcpy(d, s, glyphscanline);
403
            }
3707 decky 404
        }
405
    }
406
 
407
    if (COL2X(cols) < xres) {
408
        unsigned int y;
3710 decky 409
        unsigned int size = (xres - COL2X(cols)) * pixelbytes;
3707 decky 410
 
3710 decky 411
        for (y = ylogo; y < yres; y++)
412
            memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);
3707 decky 413
    }
414
 
3733 decky 415
    if (ROW2Y(rowtrim) + ylogo < yres) {
3707 decky 416
        unsigned int y;
417
 
3733 decky 418
        for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)
3710 decky 419
            memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);
3707 decky 420
    }
421
}
422
 
423
 
836 palkovsky 424
/** Initialize framebuffer as a chardev output device
425
 *
3707 decky 426
 * @param addr   Physical address of the framebuffer
427
 * @param x      Screen width in pixels
428
 * @param y      Screen height in pixels
429
 * @param scan   Bytes per one scanline
430
 * @param visual Color model
431
 *
836 palkovsky 432
 */
3672 jermar 433
void fb_init(fb_properties_t *props)
836 palkovsky 434
{
3672 jermar 435
    switch (props->visual) {
1993 decky 436
    case VISUAL_INDIRECT_8:
3707 decky 437
        rgb_conv = rgb_323;
1991 jermar 438
        pixelbytes = 1;
439
        break;
1993 decky 440
    case VISUAL_RGB_5_5_5:
3707 decky 441
        rgb_conv = rgb_555;
1991 jermar 442
        pixelbytes = 2;
443
        break;
1993 decky 444
    case VISUAL_RGB_5_6_5:
3707 decky 445
        rgb_conv = rgb_565;
1993 decky 446
        pixelbytes = 2;
1991 jermar 447
        break;
1993 decky 448
    case VISUAL_RGB_8_8_8:
3707 decky 449
        rgb_conv = rgb_888;
1993 decky 450
        pixelbytes = 3;
451
        break;
452
    case VISUAL_RGB_8_8_8_0:
3707 decky 453
        rgb_conv = rgb_888;
1991 jermar 454
        pixelbytes = 4;
455
        break;
1993 decky 456
    case VISUAL_RGB_0_8_8_8:
3707 decky 457
        rgb_conv = rgb_0888;
1993 decky 458
        pixelbytes = 4;
459
        break;
1994 decky 460
    case VISUAL_BGR_0_8_8_8:
3707 decky 461
        rgb_conv = bgr_0888;
1994 decky 462
        pixelbytes = 4;
463
        break;
1991 jermar 464
    default:
3790 svoboda 465
        panic("Unsupported visual.");
839 palkovsky 466
    }
1371 decky 467
 
3672 jermar 468
    xres = props->x;
469
    yres = props->y;
470
    scanline = props->scan;
836 palkovsky 471
 
3710 decky 472
    cols = X2COL(xres);
473
    rows = Y2ROW(yres);
3707 decky 474
 
3710 decky 475
    if (yres > ylogo) {
476
        ylogo = LOGO_HEIGHT;
477
        rowtrim = rows - Y2ROW(ylogo);
478
        if (ylogo % FONT_SCANLINES > 0)
479
            rowtrim--;
480
        ytrim = ROW2Y(rowtrim);
481
    } else {
482
        ylogo = 0;
483
        ytrim = yres;
484
        rowtrim = rows;
485
    }
486
 
3707 decky 487
    glyphscanline = FONT_WIDTH * pixelbytes;
3710 decky 488
    glyphbytes = ROW2Y(glyphscanline);
489
    bgscanbytes = xres * pixelbytes;
3707 decky 490
 
491
    unsigned int fbsize = scanline * yres;
492
    unsigned int bbsize = cols * rows;
493
    unsigned int glyphsize = FONT_GLYPHS * glyphbytes;
494
 
495
    backbuf = (uint8_t *) malloc(bbsize, 0);
496
    if (!backbuf)
3790 svoboda 497
        panic("Unable to allocate backbuffer.");
3707 decky 498
 
499
    glyphs = (uint8_t *) malloc(glyphsize, 0);
500
    if (!glyphs)
3790 svoboda 501
        panic("Unable to allocate glyphs.");
3707 decky 502
 
3710 decky 503
    bgscan = malloc(bgscanbytes, 0);
504
    if (!bgscan)
3790 svoboda 505
        panic("Unable to allocate background pixel.");
3707 decky 506
 
507
    memsetb(backbuf, bbsize, 0);
508
 
3710 decky 509
    glyphs_render();
3707 decky 510
 
511
    fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);
512
 
3692 rimsky 513
    fb_parea.pbase = (uintptr_t) props->addr + props->offset;
3707 decky 514
    fb_parea.vbase = (uintptr_t) fb_addr;
2015 jermar 515
    fb_parea.frames = SIZE2FRAMES(fbsize);
516
    fb_parea.cacheable = false;
517
    ddi_parea_register(&fb_parea);
3707 decky 518
 
1690 palkovsky 519
    sysinfo_set_item_val("fb", NULL, true);
520
    sysinfo_set_item_val("fb.kind", NULL, 1);
521
    sysinfo_set_item_val("fb.width", NULL, xres);
522
    sysinfo_set_item_val("fb.height", NULL, yres);
3707 decky 523
    sysinfo_set_item_val("fb.scanline", NULL, scanline);
3672 jermar 524
    sysinfo_set_item_val("fb.visual", NULL, props->visual);
525
    sysinfo_set_item_val("fb.address.physical", NULL, props->addr);
1990 decky 526
 
3707 decky 527
    fb_redraw();
528
 
836 palkovsky 529
    chardev_initialize("fb", &framebuffer, &fb_ops);
530
    stdout = &framebuffer;
531
}
1702 cejka 532
 
1790 jermar 533
/** @}
1702 cejka 534
 */