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Rev | Author | Line No. | Line |
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836 | palkovsky | 1 | /* |
2 | * Copyright (C) 2006 Ondrej Palkovsky |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1702 | cejka | 29 | /** @addtogroup genarch |
30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
837 | palkovsky | 35 | #include <genarch/fb/font-8x16.h> |
36 | #include <genarch/fb/fb.h> |
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836 | palkovsky | 37 | #include <console/chardev.h> |
38 | #include <console/console.h> |
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1317 | vana | 39 | #include <sysinfo/sysinfo.h> |
1316 | jermar | 40 | #include <mm/slab.h> |
1371 | decky | 41 | #include <align.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> |
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836 | palkovsky | 47 | |
862 | palkovsky | 48 | #include "helenos.xbm" |
49 | |||
836 | palkovsky | 50 | SPINLOCK_INITIALIZE(fb_lock); |
51 | |||
1135 | decky | 52 | static __u8 *fbaddress = NULL; |
836 | palkovsky | 53 | |
1316 | jermar | 54 | static __u8 *blankline = NULL; |
1682 | palkovsky | 55 | static __u8 *dbbuffer = NULL; /* Buffer for fast scrolling console */ |
56 | static int dboffset; |
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1316 | jermar | 57 | |
1135 | decky | 58 | static unsigned int xres = 0; |
59 | static unsigned int yres = 0; |
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60 | static unsigned int scanline = 0; |
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1327 | decky | 61 | static unsigned int bitspp = 0; |
1135 | decky | 62 | static unsigned int pixelbytes = 0; |
836 | palkovsky | 63 | |
1135 | decky | 64 | static unsigned int position = 0; |
65 | static unsigned int columns = 0; |
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66 | static unsigned int rows = 0; |
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836 | palkovsky | 67 | |
68 | |||
1135 | decky | 69 | #define COL_WIDTH 8 |
70 | #define ROW_BYTES (scanline * FONT_SCANLINES) |
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836 | palkovsky | 71 | |
1135 | decky | 72 | #define BGCOLOR 0x000080 |
73 | #define FGCOLOR 0xffff00 |
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74 | #define LOGOCOLOR 0x2020b0 |
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75 | |||
76 | #define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1)) |
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77 | #define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1)) |
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78 | #define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1)) |
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79 | |||
1682 | palkovsky | 80 | #define POINTPOS(x, y) ((y) * scanline + (x) * pixelbytes) |
1135 | decky | 81 | |
838 | palkovsky | 82 | /***************************************************************/ |
83 | /* Pixel specific fuctions */ |
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84 | |||
1682 | palkovsky | 85 | static void (*rgb2scr)(void *, int); |
86 | static int (*scr2rgb)(void *); |
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839 | palkovsky | 87 | |
1682 | palkovsky | 88 | /* Conversion routines between different color representations */ |
89 | static void rgb_4byte(void *dst, int rgb) |
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836 | palkovsky | 90 | { |
1682 | palkovsky | 91 | *(int *)dst = rgb; |
836 | palkovsky | 92 | } |
93 | |||
1682 | palkovsky | 94 | static int byte4_rgb(void *src) |
838 | palkovsky | 95 | { |
1682 | palkovsky | 96 | return (*(int *)src) & 0xffffff; |
839 | palkovsky | 97 | } |
98 | |||
1682 | palkovsky | 99 | static void rgb_3byte(void *dst, int rgb) |
839 | palkovsky | 100 | { |
1682 | palkovsky | 101 | __u8 *scr = dst; |
1334 | jermar | 102 | #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN)) |
1682 | palkovsky | 103 | scr[0] = RED(rgb, 8); |
104 | scr[1] = GREEN(rgb, 8); |
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105 | scr[2] = BLUE(rgb, 8); |
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1298 | vana | 106 | #else |
1682 | palkovsky | 107 | scr[2] = RED(rgb, 8); |
108 | scr[1] = GREEN(rgb, 8); |
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109 | scr[0] = BLUE(rgb, 8); |
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110 | #endif |
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839 | palkovsky | 111 | } |
112 | |||
1682 | palkovsky | 113 | static int byte3_rgb(void *src) |
839 | palkovsky | 114 | { |
1682 | palkovsky | 115 | __u8 *scr = src; |
1334 | jermar | 116 | #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN)) |
1682 | palkovsky | 117 | return scr[0] << 16 | scr[1] << 8 | scr[2]; |
1298 | vana | 118 | #else |
1682 | palkovsky | 119 | return scr[2] << 16 | scr[1] << 8 | scr[0]; |
1298 | vana | 120 | #endif |
838 | palkovsky | 121 | } |
122 | |||
1682 | palkovsky | 123 | /** 16-bit depth (5:6:5) */ |
124 | static void rgb_2byte(void *dst, int rgb) |
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839 | palkovsky | 125 | { |
1682 | palkovsky | 126 | /* 5-bit, 6-bits, 5-bits */ |
127 | *((__u16 *)(dst)) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb, 5); |
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839 | palkovsky | 128 | } |
129 | |||
1682 | palkovsky | 130 | /** 16-bit depth (5:6:5) */ |
131 | static int byte2_rgb(void *src) |
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839 | palkovsky | 132 | { |
1682 | palkovsky | 133 | int color = *(__u16 *)(src); |
1135 | decky | 134 | return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3); |
839 | palkovsky | 135 | } |
136 | |||
886 | jermar | 137 | /** Put pixel - 8-bit depth (3:2:3) */ |
1682 | palkovsky | 138 | static void rgb_1byte(void *dst, int rgb) |
839 | palkovsky | 139 | { |
1682 | palkovsky | 140 | *(__u8 *)dst = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb, 3); |
1135 | decky | 141 | } |
839 | palkovsky | 142 | |
1135 | decky | 143 | /** Return pixel color - 8-bit depth (3:2:3) */ |
1682 | palkovsky | 144 | static int byte1_rgb(void *src) |
1135 | decky | 145 | { |
1682 | palkovsky | 146 | int color = *(__u8 *)src; |
1135 | decky | 147 | return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5); |
839 | palkovsky | 148 | } |
149 | |||
1682 | palkovsky | 150 | static void putpixel(unsigned int x, unsigned int y, int color) |
1135 | decky | 151 | { |
1682 | palkovsky | 152 | (*rgb2scr)(&fbaddress[POINTPOS(x,y)],color); |
153 | |||
154 | if (dbbuffer) { |
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155 | int dline = (y + dboffset) % yres; |
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156 | (*rgb2scr)(&dbbuffer[POINTPOS(x,dline)],color); |
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157 | } |
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1135 | decky | 158 | } |
839 | palkovsky | 159 | |
1682 | palkovsky | 160 | /** Get pixel from viewport */ |
161 | static int getpixel(unsigned int x, unsigned int y) |
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162 | { |
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163 | if (dbbuffer) { |
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164 | int dline = (y + dboffset) % yres; |
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165 | return (*scr2rgb)(&dbbuffer[POINTPOS(x,dline)]); |
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166 | } |
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167 | return (*scr2rgb)(&fbaddress[POINTPOS(x,y)]); |
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168 | } |
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1135 | decky | 169 | |
1682 | palkovsky | 170 | |
1135 | decky | 171 | /** Fill screen with background color */ |
172 | static void clear_screen(void) |
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839 | palkovsky | 173 | { |
1135 | decky | 174 | unsigned int y; |
839 | palkovsky | 175 | |
1682 | palkovsky | 176 | for (y = 0; y < yres; y++) { |
177 | memcpy(&fbaddress[scanline*y], blankline, xres*pixelbytes); |
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178 | if (dbbuffer) |
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179 | memcpy(&dbbuffer[scanline*y], blankline, xres*pixelbytes); |
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180 | } |
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839 | palkovsky | 181 | } |
182 | |||
1135 | decky | 183 | |
838 | palkovsky | 184 | /** Scroll screen one row up */ |
185 | static void scroll_screen(void) |
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186 | { |
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1316 | jermar | 187 | __u8 *lastline = &fbaddress[(rows - 1) * ROW_BYTES]; |
1682 | palkovsky | 188 | int firstsz; |
838 | palkovsky | 189 | |
1682 | palkovsky | 190 | if (dbbuffer) { |
191 | memcpy(&dbbuffer[dboffset*scanline], blankline, FONT_SCANLINES*scanline); |
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192 | |||
193 | dboffset = (dboffset + FONT_SCANLINES) % yres; |
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194 | firstsz = yres-dboffset; |
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838 | palkovsky | 195 | |
1682 | palkovsky | 196 | memcpy(fbaddress, &dbbuffer[scanline*dboffset], firstsz*scanline); |
197 | memcpy(&fbaddress[firstsz*scanline], dbbuffer, dboffset*scanline); |
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198 | } else { |
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199 | memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES); |
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200 | /* Clear last row */ |
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201 | memcpy((void *) lastline, (void *) blankline, ROW_BYTES); |
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202 | } |
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838 | palkovsky | 203 | } |
204 | |||
205 | |||
1135 | decky | 206 | static void invert_pixel(unsigned int x, unsigned int y) |
836 | palkovsky | 207 | { |
1682 | palkovsky | 208 | putpixel(x, y, ~getpixel(x, y)); |
836 | palkovsky | 209 | } |
210 | |||
211 | |||
212 | /** Draw one line of glyph at a given position */ |
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1135 | decky | 213 | static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y) |
836 | palkovsky | 214 | { |
1135 | decky | 215 | unsigned int i; |
836 | palkovsky | 216 | |
1135 | decky | 217 | for (i = 0; i < 8; i++) |
218 | if (glline & (1 << (7 - i))) { |
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1682 | palkovsky | 219 | putpixel(x + i, y, FGCOLOR); |
836 | palkovsky | 220 | } else |
1682 | palkovsky | 221 | putpixel(x + i, y, BGCOLOR); |
836 | palkovsky | 222 | } |
223 | |||
838 | palkovsky | 224 | /***************************************************************/ |
225 | /* Character-console functions */ |
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226 | |||
836 | palkovsky | 227 | /** Draw character at given position */ |
1135 | decky | 228 | static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row) |
836 | palkovsky | 229 | { |
1135 | decky | 230 | unsigned int y; |
836 | palkovsky | 231 | |
1135 | decky | 232 | for (y = 0; y < FONT_SCANLINES; y++) |
233 | draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y); |
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836 | palkovsky | 234 | } |
235 | |||
236 | /** Invert character at given position */ |
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1135 | decky | 237 | static void invert_char(unsigned int col, unsigned int row) |
836 | palkovsky | 238 | { |
1135 | decky | 239 | unsigned int x; |
240 | unsigned int y; |
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836 | palkovsky | 241 | |
1135 | decky | 242 | for (x = 0; x < COL_WIDTH; x++) |
243 | for (y = 0; y < FONT_SCANLINES; y++) |
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244 | invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y); |
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836 | palkovsky | 245 | } |
246 | |||
247 | /** Draw character at default position */ |
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248 | static void draw_char(char chr) |
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249 | { |
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1135 | decky | 250 | draw_glyph(chr, position % columns, position / columns); |
836 | palkovsky | 251 | } |
252 | |||
1135 | decky | 253 | static void draw_logo(unsigned int startx, unsigned int starty) |
862 | palkovsky | 254 | { |
1135 | decky | 255 | unsigned int x; |
256 | unsigned int y; |
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257 | unsigned int byte; |
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258 | unsigned int rowbytes; |
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862 | palkovsky | 259 | |
1135 | decky | 260 | rowbytes = (helenos_width - 1) / 8 + 1; |
862 | palkovsky | 261 | |
1135 | decky | 262 | for (y = 0; y < helenos_height; y++) |
263 | for (x = 0; x < helenos_width; x++) { |
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264 | byte = helenos_bits[rowbytes * y + x / 8]; |
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862 | palkovsky | 265 | byte >>= x % 8; |
266 | if (byte & 1) |
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1682 | palkovsky | 267 | putpixel(startx + x, starty + y, LOGOCOLOR); |
862 | palkovsky | 268 | } |
269 | } |
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270 | |||
838 | palkovsky | 271 | /***************************************************************/ |
272 | /* Stdout specific functions */ |
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273 | |||
836 | palkovsky | 274 | static void invert_cursor(void) |
275 | { |
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1135 | decky | 276 | invert_char(position % columns, position / columns); |
836 | palkovsky | 277 | } |
278 | |||
279 | /** Print character to screen |
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280 | * |
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281 | * Emulate basic terminal commands |
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282 | */ |
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283 | static void fb_putchar(chardev_t *dev, char ch) |
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284 | { |
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1287 | vana | 285 | spinlock_lock(&fb_lock); |
1135 | decky | 286 | |
287 | switch (ch) { |
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288 | case '\n': |
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289 | invert_cursor(); |
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290 | position += columns; |
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291 | position -= position % columns; |
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292 | break; |
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293 | case '\r': |
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294 | invert_cursor(); |
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295 | position -= position % columns; |
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296 | break; |
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297 | case '\b': |
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298 | invert_cursor(); |
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299 | if (position % columns) |
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300 | position--; |
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301 | break; |
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302 | case '\t': |
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303 | invert_cursor(); |
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304 | do { |
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305 | draw_char(' '); |
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306 | position++; |
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1312 | palkovsky | 307 | } while ((position % 8) && position < columns * rows); |
1135 | decky | 308 | break; |
309 | default: |
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310 | draw_char(ch); |
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838 | palkovsky | 311 | position++; |
836 | palkovsky | 312 | } |
1135 | decky | 313 | |
314 | if (position >= columns * rows) { |
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836 | palkovsky | 315 | position -= columns; |
316 | scroll_screen(); |
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317 | } |
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1135 | decky | 318 | |
836 | palkovsky | 319 | invert_cursor(); |
1135 | decky | 320 | |
1287 | vana | 321 | spinlock_unlock(&fb_lock); |
836 | palkovsky | 322 | } |
323 | |||
324 | static chardev_t framebuffer; |
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325 | static chardev_operations_t fb_ops = { |
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326 | .write = fb_putchar, |
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327 | }; |
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328 | |||
329 | |||
330 | /** Initialize framebuffer as a chardev output device |
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331 | * |
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1371 | decky | 332 | * @param addr Physical address of the framebuffer |
1135 | decky | 333 | * @param x Screen width in pixels |
334 | * @param y Screen height in pixels |
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335 | * @param bpp Bits per pixel (8, 16, 24, 32) |
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336 | * @param scan Bytes per one scanline |
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337 | * |
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836 | palkovsky | 338 | */ |
1135 | decky | 339 | void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan) |
836 | palkovsky | 340 | { |
1135 | decky | 341 | switch (bpp) { |
342 | case 8: |
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1682 | palkovsky | 343 | rgb2scr = rgb_1byte; |
344 | scr2rgb = byte1_rgb; |
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1135 | decky | 345 | pixelbytes = 1; |
346 | break; |
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347 | case 16: |
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1682 | palkovsky | 348 | rgb2scr = rgb_2byte; |
349 | scr2rgb = byte2_rgb; |
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1135 | decky | 350 | pixelbytes = 2; |
351 | break; |
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352 | case 24: |
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1682 | palkovsky | 353 | rgb2scr = rgb_3byte; |
354 | scr2rgb = byte3_rgb; |
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1135 | decky | 355 | pixelbytes = 3; |
356 | break; |
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357 | case 32: |
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1682 | palkovsky | 358 | rgb2scr = rgb_4byte; |
359 | scr2rgb = byte4_rgb; |
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1135 | decky | 360 | pixelbytes = 4; |
361 | break; |
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362 | default: |
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363 | panic("Unsupported bpp"); |
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839 | palkovsky | 364 | } |
1371 | decky | 365 | |
366 | unsigned int fbsize = scan * y; |
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367 | |||
368 | /* Map the framebuffer */ |
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1382 | decky | 369 | fbaddress = (__u8 *) hw_map((__address) addr, fbsize); |
1371 | decky | 370 | |
836 | palkovsky | 371 | xres = x; |
372 | yres = y; |
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1327 | decky | 373 | bitspp = bpp; |
1135 | decky | 374 | scanline = scan; |
836 | palkovsky | 375 | |
1135 | decky | 376 | rows = y / FONT_SCANLINES; |
377 | columns = x / COL_WIDTH; |
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836 | palkovsky | 378 | |
1690 | palkovsky | 379 | sysinfo_set_item_val("fb", NULL, true); |
380 | sysinfo_set_item_val("fb.kind", NULL, 1); |
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381 | sysinfo_set_item_val("fb.width", NULL, xres); |
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382 | sysinfo_set_item_val("fb.height", NULL, yres); |
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383 | sysinfo_set_item_val("fb.bpp", NULL, bpp); |
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384 | sysinfo_set_item_val("fb.scanline", NULL, scan); |
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385 | sysinfo_set_item_val("fb.address.physical", NULL, addr); |
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386 | |||
1682 | palkovsky | 387 | /* Allocate double buffer */ |
388 | int totsize = scanline * yres; |
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389 | int pages = SIZE2FRAMES(totsize); |
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390 | int order; |
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391 | int rc; |
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392 | if (pages == 1) |
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393 | order = 0; |
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394 | else |
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395 | order = fnzb(pages-1)+1; |
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396 | |||
1760 | palkovsky | 397 | dbbuffer = frame_alloc_rc(order,FRAME_ATOMIC | FRAME_KA, &rc); |
398 | if (!dbbuffer) |
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1682 | palkovsky | 399 | printf("Failed to allocate scroll buffer.\n"); |
400 | dboffset = 0; |
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401 | |||
402 | /* Initialized blank line */ |
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1671 | jermar | 403 | blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC); |
404 | ASSERT(blankline); |
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1682 | palkovsky | 405 | for (y=0; y < FONT_SCANLINES; y++) |
406 | for (x=0; x < xres; x++) |
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407 | (*rgb2scr)(&blankline[POINTPOS(x,y)],BGCOLOR); |
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408 | |||
409 | clear_screen(); |
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410 | |||
411 | /* Update size of screen to match text area */ |
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412 | yres = rows * FONT_SCANLINES; |
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413 | |||
1135 | decky | 414 | draw_logo(xres - helenos_width, 0); |
836 | palkovsky | 415 | invert_cursor(); |
416 | |||
417 | chardev_initialize("fb", &framebuffer, &fb_ops); |
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418 | stdout = &framebuffer; |
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1371 | decky | 419 | |
836 | palkovsky | 420 | } |
1702 | cejka | 421 | |
422 | /** @} |
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423 | */ |
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424 |