ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU JAZZ LED emulator. |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 4 | * Copyright (c) 2007 Hervé Poussineau |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 5 | * |
ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
pbrook | 87ecb68 | 2007-11-17 17:14:51 +0000 | [diff] [blame] | 25 | #include "hw.h" |
| 26 | #include "mips.h" |
| 27 | #include "console.h" |
ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 28 | #include "pixel_ops.h" |
| 29 | |
| 30 | //#define DEBUG_LED |
| 31 | |
| 32 | typedef enum { |
| 33 | REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2, |
| 34 | } screen_state_t; |
| 35 | |
| 36 | typedef struct LedState { |
| 37 | target_phys_addr_t base; |
| 38 | uint8_t segments; |
| 39 | DisplayState *ds; |
| 40 | screen_state_t state; |
| 41 | } LedState; |
| 42 | |
| 43 | static uint32_t led_readb(void *opaque, target_phys_addr_t addr) |
| 44 | { |
| 45 | LedState *s = opaque; |
| 46 | int relative_addr = addr - s->base; |
| 47 | uint32_t val; |
| 48 | |
| 49 | switch (relative_addr) { |
| 50 | case 0: |
| 51 | val = s->segments; |
| 52 | break; |
| 53 | default: |
| 54 | #ifdef DEBUG_LED |
| 55 | printf("jazz led: invalid read [0x%x]\n", relative_addr); |
| 56 | #endif |
| 57 | val = 0; |
| 58 | } |
| 59 | |
| 60 | return val; |
| 61 | } |
| 62 | |
| 63 | static uint32_t led_readw(void *opaque, target_phys_addr_t addr) |
| 64 | { |
| 65 | uint32_t v; |
| 66 | #ifdef TARGET_WORDS_BIGENDIAN |
| 67 | v = led_readb(opaque, addr) << 8; |
| 68 | v |= led_readb(opaque, addr + 1); |
| 69 | #else |
| 70 | v = led_readb(opaque, addr); |
| 71 | v |= led_readb(opaque, addr + 1) << 8; |
| 72 | #endif |
| 73 | return v; |
| 74 | } |
| 75 | |
| 76 | static uint32_t led_readl(void *opaque, target_phys_addr_t addr) |
| 77 | { |
| 78 | uint32_t v; |
| 79 | #ifdef TARGET_WORDS_BIGENDIAN |
| 80 | v = led_readb(opaque, addr) << 24; |
| 81 | v |= led_readb(opaque, addr + 1) << 16; |
| 82 | v |= led_readb(opaque, addr + 2) << 8; |
| 83 | v |= led_readb(opaque, addr + 3); |
| 84 | #else |
| 85 | v = led_readb(opaque, addr); |
| 86 | v |= led_readb(opaque, addr + 1) << 8; |
| 87 | v |= led_readb(opaque, addr + 2) << 16; |
| 88 | v |= led_readb(opaque, addr + 3) << 24; |
| 89 | #endif |
| 90 | return v; |
| 91 | } |
| 92 | |
| 93 | static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 94 | { |
| 95 | LedState *s = opaque; |
| 96 | int relative_addr = addr - s->base; |
| 97 | |
| 98 | switch (relative_addr) { |
| 99 | case 0: |
| 100 | s->segments = val; |
| 101 | s->state |= REDRAW_SEGMENTS; |
| 102 | break; |
| 103 | default: |
| 104 | #ifdef DEBUG_LED |
| 105 | printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr); |
| 106 | #endif |
| 107 | break; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 112 | { |
| 113 | #ifdef TARGET_WORDS_BIGENDIAN |
| 114 | led_writeb(opaque, addr, (val >> 8) & 0xff); |
| 115 | led_writeb(opaque, addr + 1, val & 0xff); |
| 116 | #else |
| 117 | led_writeb(opaque, addr, val & 0xff); |
| 118 | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
| 119 | #endif |
| 120 | } |
| 121 | |
| 122 | static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 123 | { |
| 124 | #ifdef TARGET_WORDS_BIGENDIAN |
| 125 | led_writeb(opaque, addr, (val >> 24) & 0xff); |
| 126 | led_writeb(opaque, addr + 1, (val >> 16) & 0xff); |
| 127 | led_writeb(opaque, addr + 2, (val >> 8) & 0xff); |
| 128 | led_writeb(opaque, addr + 3, val & 0xff); |
| 129 | #else |
| 130 | led_writeb(opaque, addr, val & 0xff); |
| 131 | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
| 132 | led_writeb(opaque, addr + 2, (val >> 16) & 0xff); |
| 133 | led_writeb(opaque, addr + 3, (val >> 24) & 0xff); |
| 134 | #endif |
| 135 | } |
| 136 | |
| 137 | static CPUReadMemoryFunc *led_read[3] = { |
| 138 | led_readb, |
| 139 | led_readw, |
| 140 | led_readl, |
| 141 | }; |
| 142 | |
| 143 | static CPUWriteMemoryFunc *led_write[3] = { |
| 144 | led_writeb, |
| 145 | led_writew, |
| 146 | led_writel, |
| 147 | }; |
| 148 | |
| 149 | /***********************************************************/ |
| 150 | /* jazz_led display */ |
| 151 | |
| 152 | static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color) |
| 153 | { |
| 154 | uint8_t *d; |
| 155 | int x, bpp; |
| 156 | |
| 157 | bpp = (ds->depth + 7) >> 3; |
| 158 | d = ds->data + ds->linesize * posy + bpp * posx1; |
| 159 | switch(bpp) { |
| 160 | case 1: |
| 161 | for (x = posx1; x <= posx2; x++) { |
| 162 | *((uint8_t *)d) = color; |
| 163 | d++; |
| 164 | } |
| 165 | break; |
| 166 | case 2: |
| 167 | for (x = posx1; x <= posx2; x++) { |
| 168 | *((uint16_t *)d) = color; |
| 169 | d += 2; |
| 170 | } |
| 171 | break; |
| 172 | case 4: |
| 173 | for (x = posx1; x <= posx2; x++) { |
| 174 | *((uint32_t *)d) = color; |
| 175 | d += 4; |
| 176 | } |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color) |
| 182 | { |
| 183 | uint8_t *d; |
| 184 | int y, bpp; |
| 185 | |
| 186 | bpp = (ds->depth + 7) >> 3; |
| 187 | d = ds->data + ds->linesize * posy1 + bpp * posx; |
| 188 | switch(bpp) { |
| 189 | case 1: |
| 190 | for (y = posy1; y <= posy2; y++) { |
| 191 | *((uint8_t *)d) = color; |
| 192 | d += ds->linesize; |
| 193 | } |
| 194 | break; |
| 195 | case 2: |
| 196 | for (y = posy1; y <= posy2; y++) { |
| 197 | *((uint16_t *)d) = color; |
| 198 | d += ds->linesize; |
| 199 | } |
| 200 | break; |
| 201 | case 4: |
| 202 | for (y = posy1; y <= posy2; y++) { |
| 203 | *((uint32_t *)d) = color; |
| 204 | d += ds->linesize; |
| 205 | } |
| 206 | break; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | static void jazz_led_update_display(void *opaque) |
| 211 | { |
| 212 | LedState *s = opaque; |
| 213 | DisplayState *ds = s->ds; |
| 214 | uint8_t *d1; |
| 215 | uint32_t color_segment, color_led; |
| 216 | int y, bpp; |
| 217 | |
| 218 | if (s->state & REDRAW_BACKGROUND) { |
| 219 | /* clear screen */ |
| 220 | bpp = (ds->depth + 7) >> 3; |
| 221 | d1 = ds->data; |
| 222 | for (y = 0; y < ds->height; y++) { |
| 223 | memset(d1, 0x00, ds->width * bpp); |
| 224 | d1 += ds->linesize; |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | if (s->state & REDRAW_SEGMENTS) { |
| 229 | /* set colors according to bpp */ |
| 230 | switch (ds->depth) { |
| 231 | case 8: |
| 232 | color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa); |
| 233 | color_led = rgb_to_pixel8(0x00, 0xff, 0x00); |
| 234 | break; |
| 235 | case 15: |
| 236 | color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa); |
| 237 | color_led = rgb_to_pixel15(0x00, 0xff, 0x00); |
| 238 | break; |
| 239 | case 16: |
| 240 | color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa); |
| 241 | color_led = rgb_to_pixel16(0x00, 0xff, 0x00); |
| 242 | case 24: |
| 243 | color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa); |
| 244 | color_led = rgb_to_pixel24(0x00, 0xff, 0x00); |
| 245 | break; |
| 246 | case 32: |
| 247 | color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa); |
| 248 | color_led = rgb_to_pixel32(0x00, 0xff, 0x00); |
| 249 | break; |
| 250 | default: |
| 251 | return; |
| 252 | } |
| 253 | |
| 254 | /* display segments */ |
| 255 | draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0); |
| 256 | draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0); |
| 257 | draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0); |
| 258 | draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0); |
| 259 | draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0); |
| 260 | draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0); |
| 261 | draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0); |
| 262 | |
| 263 | /* display led */ |
| 264 | if (!(s->segments & 0x01)) |
| 265 | color_led = 0; /* black */ |
| 266 | draw_horizontal_line(ds, 68, 50, 50, color_led); |
| 267 | draw_horizontal_line(ds, 69, 49, 51, color_led); |
| 268 | draw_horizontal_line(ds, 70, 48, 52, color_led); |
| 269 | draw_horizontal_line(ds, 71, 49, 51, color_led); |
| 270 | draw_horizontal_line(ds, 72, 50, 50, color_led); |
| 271 | } |
| 272 | |
| 273 | s->state = REDRAW_NONE; |
| 274 | dpy_update(ds, 0, 0, ds->width, ds->height); |
| 275 | } |
| 276 | |
| 277 | static void jazz_led_invalidate_display(void *opaque) |
| 278 | { |
| 279 | LedState *s = opaque; |
| 280 | s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
| 281 | } |
| 282 | |
| 283 | static void jazz_led_screen_dump(void *opaque, const char *filename) |
| 284 | { |
| 285 | printf("jazz_led_screen_dump() not implemented\n"); |
| 286 | } |
| 287 | |
balrog | 4d3b6f6 | 2008-02-10 16:33:14 +0000 | [diff] [blame] | 288 | static void jazz_led_text_update(void *opaque, console_ch_t *chardata) |
| 289 | { |
| 290 | LedState *s = opaque; |
| 291 | char buf[2]; |
| 292 | |
| 293 | dpy_cursor(s->ds, -1, -1); |
| 294 | dpy_resize(s->ds, 2, 1); |
| 295 | |
| 296 | /* TODO: draw the segments */ |
| 297 | snprintf(buf, 2, "%02hhx\n", s->segments); |
| 298 | console_write_ch(chardata++, 0x00200100 | buf[0]); |
| 299 | console_write_ch(chardata++, 0x00200100 | buf[1]); |
| 300 | |
| 301 | dpy_update(s->ds, 0, 0, 2, 1); |
| 302 | } |
| 303 | |
ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 304 | void jazz_led_init(DisplayState *ds, target_phys_addr_t base) |
| 305 | { |
| 306 | LedState *s; |
| 307 | int io; |
| 308 | |
| 309 | s = qemu_mallocz(sizeof(LedState)); |
| 310 | if (!s) |
| 311 | return; |
| 312 | |
| 313 | s->base = base; |
| 314 | s->ds = ds; |
| 315 | s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
| 316 | |
| 317 | io = cpu_register_io_memory(0, led_read, led_write, s); |
| 318 | cpu_register_physical_memory(s->base, 1, io); |
| 319 | |
balrog | 4d3b6f6 | 2008-02-10 16:33:14 +0000 | [diff] [blame] | 320 | graphic_console_init(ds, jazz_led_update_display, |
| 321 | jazz_led_invalidate_display, jazz_led_screen_dump, |
| 322 | jazz_led_text_update, s); |
ths | 31211df | 2007-06-25 10:57:10 +0000 | [diff] [blame] | 323 | } |