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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 | |||
837 | palkovsky | 29 | #include <genarch/fb/font-8x16.h> |
30 | #include <genarch/fb/fb.h> |
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836 | palkovsky | 31 | #include <console/chardev.h> |
32 | #include <console/console.h> |
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1317 | vana | 33 | #include <sysinfo/sysinfo.h> |
1316 | jermar | 34 | #include <mm/slab.h> |
839 | palkovsky | 35 | #include <panic.h> |
896 | jermar | 36 | #include <memstr.h> |
1316 | jermar | 37 | #include <config.h> |
836 | palkovsky | 38 | |
862 | palkovsky | 39 | #include "helenos.xbm" |
40 | |||
836 | palkovsky | 41 | SPINLOCK_INITIALIZE(fb_lock); |
42 | |||
1135 | decky | 43 | static __u8 *fbaddress = NULL; |
836 | palkovsky | 44 | |
1316 | jermar | 45 | static __u8 *blankline = NULL; |
46 | |||
1135 | decky | 47 | static unsigned int xres = 0; |
48 | static unsigned int yres = 0; |
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49 | static unsigned int scanline = 0; |
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50 | static unsigned int pixelbytes = 0; |
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836 | palkovsky | 51 | |
1135 | decky | 52 | static unsigned int position = 0; |
53 | static unsigned int columns = 0; |
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54 | static unsigned int rows = 0; |
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836 | palkovsky | 55 | |
56 | |||
1135 | decky | 57 | #define COL_WIDTH 8 |
58 | #define ROW_BYTES (scanline * FONT_SCANLINES) |
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836 | palkovsky | 59 | |
1135 | decky | 60 | #define BGCOLOR 0x000080 |
61 | #define FGCOLOR 0xffff00 |
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62 | #define LOGOCOLOR 0x2020b0 |
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63 | |||
64 | #define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1)) |
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65 | #define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1)) |
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66 | #define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1)) |
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67 | |||
68 | #define POINTPOS(x, y) (y * scanline + x * pixelbytes) |
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69 | |||
838 | palkovsky | 70 | /***************************************************************/ |
71 | /* Pixel specific fuctions */ |
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72 | |||
1135 | decky | 73 | static void (*putpixel)(unsigned int x, unsigned int y, int color); |
74 | static int (*getpixel)(unsigned int x, unsigned int y); |
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839 | palkovsky | 75 | |
76 | /** Put pixel - 24-bit depth, 1 free byte */ |
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1135 | decky | 77 | static void putpixel_4byte(unsigned int x, unsigned int y, int color) |
836 | palkovsky | 78 | { |
1135 | decky | 79 | *((__u32 *)(fbaddress + POINTPOS(x, y))) = color; |
836 | palkovsky | 80 | } |
81 | |||
1135 | decky | 82 | /** Return pixel color - 24-bit depth, 1 free byte */ |
83 | static int getpixel_4byte(unsigned int x, unsigned int y) |
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838 | palkovsky | 84 | { |
1135 | decky | 85 | return *((__u32 *)(fbaddress + POINTPOS(x, y))) & 0xffffff; |
839 | palkovsky | 86 | } |
87 | |||
1135 | decky | 88 | /** Put pixel - 24-bit depth */ |
89 | static void putpixel_3byte(unsigned int x, unsigned int y, int color) |
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839 | palkovsky | 90 | { |
1135 | decky | 91 | unsigned int startbyte = POINTPOS(x, y); |
839 | palkovsky | 92 | |
1298 | vana | 93 | #ifdef BIG_ENDIAN |
1135 | decky | 94 | fbaddress[startbyte] = RED(color, 8); |
95 | fbaddress[startbyte + 1] = GREEN(color, 8); |
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96 | fbaddress[startbyte + 2] = BLUE(color, 8); |
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1298 | vana | 97 | #else |
98 | fbaddress[startbyte + 2] = RED(color, 8); |
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99 | fbaddress[startbyte + 1] = GREEN(color, 8); |
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100 | fbaddress[startbyte + 0] = BLUE(color, 8); |
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101 | #endif |
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839 | palkovsky | 102 | } |
103 | |||
1135 | decky | 104 | /** Return pixel color - 24-bit depth */ |
105 | static int getpixel_3byte(unsigned int x, unsigned int y) |
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839 | palkovsky | 106 | { |
1135 | decky | 107 | unsigned int startbyte = POINTPOS(x, y); |
838 | palkovsky | 108 | |
1298 | vana | 109 | #ifdef BIG_ENDIAN |
1135 | decky | 110 | return fbaddress[startbyte] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 2]; |
1298 | vana | 111 | #else |
112 | return fbaddress[startbyte + 2] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 0]; |
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113 | #endif |
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838 | palkovsky | 114 | } |
115 | |||
839 | palkovsky | 116 | /** Put pixel - 16-bit depth (5:6:6) */ |
1135 | decky | 117 | static void putpixel_2byte(unsigned int x, unsigned int y, int color) |
839 | palkovsky | 118 | { |
119 | /* 5-bit, 5-bits, 5-bits */ |
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1135 | decky | 120 | *((__u16 *)(fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5); |
839 | palkovsky | 121 | } |
122 | |||
1135 | decky | 123 | /** Return pixel color - 16-bit depth (5:6:6) */ |
124 | static int getpixel_2byte(unsigned int x, unsigned int y) |
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839 | palkovsky | 125 | { |
1135 | decky | 126 | int color = *((__u16 *)(fbaddress + POINTPOS(x, y))); |
127 | return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3); |
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839 | palkovsky | 128 | } |
129 | |||
886 | jermar | 130 | /** Put pixel - 8-bit depth (3:2:3) */ |
1135 | decky | 131 | static void putpixel_1byte(unsigned int x, unsigned int y, int color) |
839 | palkovsky | 132 | { |
1135 | decky | 133 | fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3); |
134 | } |
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839 | palkovsky | 135 | |
1135 | decky | 136 | /** Return pixel color - 8-bit depth (3:2:3) */ |
137 | static int getpixel_1byte(unsigned int x, unsigned int y) |
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138 | { |
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139 | int color = fbaddress[POINTPOS(x, y)]; |
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140 | return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5); |
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839 | palkovsky | 141 | } |
142 | |||
1135 | decky | 143 | /** Fill line with color BGCOLOR */ |
144 | static void clear_line(unsigned int y) |
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145 | { |
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146 | unsigned int x; |
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147 | |||
148 | for (x = 0; x < xres; x++) |
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149 | (*putpixel)(x, y, BGCOLOR); |
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150 | } |
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839 | palkovsky | 151 | |
1135 | decky | 152 | |
153 | /** Fill screen with background color */ |
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154 | static void clear_screen(void) |
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839 | palkovsky | 155 | { |
1135 | decky | 156 | unsigned int y; |
839 | palkovsky | 157 | |
1135 | decky | 158 | for (y = 0; y < yres; y++) |
159 | clear_line(y); |
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839 | palkovsky | 160 | } |
161 | |||
1135 | decky | 162 | |
838 | palkovsky | 163 | /** Scroll screen one row up */ |
164 | static void scroll_screen(void) |
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165 | { |
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1135 | decky | 166 | unsigned int i; |
1316 | jermar | 167 | __u8 *lastline = &fbaddress[(rows - 1) * ROW_BYTES]; |
838 | palkovsky | 168 | |
1135 | decky | 169 | memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES); |
838 | palkovsky | 170 | |
171 | /* Clear last row */ |
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1316 | jermar | 172 | if (blankline) { |
173 | memcpy((void *) lastline, (void *) blankline, ROW_BYTES); |
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174 | } else { |
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175 | for (i = 0; i < FONT_SCANLINES; i++) |
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176 | clear_line((rows - 1) * FONT_SCANLINES + i); |
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177 | |||
178 | if (config.mm_initialized) { |
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179 | /* Save a blank line aside. */ |
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180 | blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC); |
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181 | if (blankline) |
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182 | memcpy((void *) blankline, (void *) lastline, ROW_BYTES); |
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183 | } |
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184 | } |
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838 | palkovsky | 185 | } |
186 | |||
187 | |||
1135 | decky | 188 | static void invert_pixel(unsigned int x, unsigned int y) |
836 | palkovsky | 189 | { |
1135 | decky | 190 | (*putpixel)(x, y, ~(*getpixel)(x, y)); |
836 | palkovsky | 191 | } |
192 | |||
193 | |||
194 | /** Draw one line of glyph at a given position */ |
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1135 | decky | 195 | static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y) |
836 | palkovsky | 196 | { |
1135 | decky | 197 | unsigned int i; |
836 | palkovsky | 198 | |
1135 | decky | 199 | for (i = 0; i < 8; i++) |
200 | if (glline & (1 << (7 - i))) { |
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201 | (*putpixel)(x + i, y, FGCOLOR); |
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836 | palkovsky | 202 | } else |
1135 | decky | 203 | (*putpixel)(x + i, y, BGCOLOR); |
836 | palkovsky | 204 | } |
205 | |||
838 | palkovsky | 206 | /***************************************************************/ |
207 | /* Character-console functions */ |
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208 | |||
836 | palkovsky | 209 | /** Draw character at given position */ |
1135 | decky | 210 | static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row) |
836 | palkovsky | 211 | { |
1135 | decky | 212 | unsigned int y; |
836 | palkovsky | 213 | |
1135 | decky | 214 | for (y = 0; y < FONT_SCANLINES; y++) |
215 | draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y); |
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836 | palkovsky | 216 | } |
217 | |||
218 | /** Invert character at given position */ |
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1135 | decky | 219 | static void invert_char(unsigned int col, unsigned int row) |
836 | palkovsky | 220 | { |
1135 | decky | 221 | unsigned int x; |
222 | unsigned int y; |
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836 | palkovsky | 223 | |
1135 | decky | 224 | for (x = 0; x < COL_WIDTH; x++) |
225 | for (y = 0; y < FONT_SCANLINES; y++) |
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226 | invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y); |
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836 | palkovsky | 227 | } |
228 | |||
229 | /** Draw character at default position */ |
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230 | static void draw_char(char chr) |
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231 | { |
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1135 | decky | 232 | draw_glyph(chr, position % columns, position / columns); |
836 | palkovsky | 233 | } |
234 | |||
1135 | decky | 235 | static void draw_logo(unsigned int startx, unsigned int starty) |
862 | palkovsky | 236 | { |
1135 | decky | 237 | unsigned int x; |
238 | unsigned int y; |
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239 | unsigned int byte; |
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240 | unsigned int rowbytes; |
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862 | palkovsky | 241 | |
1135 | decky | 242 | rowbytes = (helenos_width - 1) / 8 + 1; |
862 | palkovsky | 243 | |
1135 | decky | 244 | for (y = 0; y < helenos_height; y++) |
245 | for (x = 0; x < helenos_width; x++) { |
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246 | byte = helenos_bits[rowbytes * y + x / 8]; |
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862 | palkovsky | 247 | byte >>= x % 8; |
248 | if (byte & 1) |
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1135 | decky | 249 | (*putpixel)(startx + x, starty + y, LOGOCOLOR); |
862 | palkovsky | 250 | } |
251 | } |
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252 | |||
838 | palkovsky | 253 | /***************************************************************/ |
254 | /* Stdout specific functions */ |
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255 | |||
836 | palkovsky | 256 | static void invert_cursor(void) |
257 | { |
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1135 | decky | 258 | invert_char(position % columns, position / columns); |
836 | palkovsky | 259 | } |
260 | |||
261 | /** Print character to screen |
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262 | * |
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263 | * Emulate basic terminal commands |
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264 | */ |
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265 | static void fb_putchar(chardev_t *dev, char ch) |
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266 | { |
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1287 | vana | 267 | spinlock_lock(&fb_lock); |
1135 | decky | 268 | |
269 | switch (ch) { |
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270 | case '\n': |
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271 | invert_cursor(); |
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272 | position += columns; |
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273 | position -= position % columns; |
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274 | break; |
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275 | case '\r': |
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276 | invert_cursor(); |
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277 | position -= position % columns; |
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278 | break; |
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279 | case '\b': |
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280 | invert_cursor(); |
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281 | if (position % columns) |
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282 | position--; |
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283 | break; |
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284 | case '\t': |
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285 | invert_cursor(); |
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286 | do { |
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287 | draw_char(' '); |
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288 | position++; |
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1312 | palkovsky | 289 | } while ((position % 8) && position < columns * rows); |
1135 | decky | 290 | break; |
291 | default: |
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292 | draw_char(ch); |
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838 | palkovsky | 293 | position++; |
836 | palkovsky | 294 | } |
1135 | decky | 295 | |
296 | if (position >= columns * rows) { |
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836 | palkovsky | 297 | position -= columns; |
298 | scroll_screen(); |
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299 | } |
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1135 | decky | 300 | |
836 | palkovsky | 301 | invert_cursor(); |
1135 | decky | 302 | |
1287 | vana | 303 | spinlock_unlock(&fb_lock); |
836 | palkovsky | 304 | } |
305 | |||
306 | static chardev_t framebuffer; |
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307 | static chardev_operations_t fb_ops = { |
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308 | .write = fb_putchar, |
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309 | }; |
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310 | |||
311 | |||
312 | /** Initialize framebuffer as a chardev output device |
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313 | * |
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1135 | decky | 314 | * @param addr Address of theframebuffer |
315 | * @param x Screen width in pixels |
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316 | * @param y Screen height in pixels |
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317 | * @param bpp Bits per pixel (8, 16, 24, 32) |
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318 | * @param scan Bytes per one scanline |
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319 | * |
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836 | palkovsky | 320 | */ |
1135 | decky | 321 | void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan) |
836 | palkovsky | 322 | { |
1135 | decky | 323 | switch (bpp) { |
324 | case 8: |
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325 | putpixel = putpixel_1byte; |
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326 | getpixel = getpixel_1byte; |
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327 | pixelbytes = 1; |
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328 | break; |
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329 | case 16: |
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330 | putpixel = putpixel_2byte; |
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331 | getpixel = getpixel_2byte; |
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332 | pixelbytes = 2; |
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333 | break; |
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334 | case 24: |
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335 | putpixel = putpixel_3byte; |
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336 | getpixel = getpixel_3byte; |
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337 | pixelbytes = 3; |
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338 | break; |
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339 | case 32: |
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340 | putpixel = putpixel_4byte; |
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341 | getpixel = getpixel_4byte; |
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342 | pixelbytes = 4; |
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343 | break; |
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344 | default: |
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345 | panic("Unsupported bpp"); |
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839 | palkovsky | 346 | } |
1135 | decky | 347 | |
348 | fbaddress = (unsigned char *) addr; |
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836 | palkovsky | 349 | xres = x; |
350 | yres = y; |
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1135 | decky | 351 | scanline = scan; |
836 | palkovsky | 352 | |
1135 | decky | 353 | rows = y / FONT_SCANLINES; |
354 | columns = x / COL_WIDTH; |
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836 | palkovsky | 355 | |
356 | clear_screen(); |
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1135 | decky | 357 | draw_logo(xres - helenos_width, 0); |
836 | palkovsky | 358 | invert_cursor(); |
359 | |||
360 | chardev_initialize("fb", &framebuffer, &fb_ops); |
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361 | stdout = &framebuffer; |
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1317 | vana | 362 | |
363 | sysinfo_set_item_val("Framebuffer",NULL,true); |
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364 | sysinfo_set_item_val("Framebuffer.width",NULL,x); |
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365 | sysinfo_set_item_val("Framebuffer.height",NULL,y); |
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366 | sysinfo_set_item_val("Framebuffer.scanline",NULL,scan); |
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367 | sysinfo_set_item_val("Framebuffer.bpp",NULL,bpp); |
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368 | sysinfo_set_item_val("Framebuffer.address",NULL,addr); |
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369 | |||
370 | |||
371 | |||
836 | palkovsky | 372 | } |