2 * QEMU JAZZ LED emulator.
4 * Copyright (c) 2007 Hervé Poussineau
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
26 #include "pixel_ops.h"
31 REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
34 typedef struct LedState {
35 target_phys_addr_t base;
41 static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
44 int relative_addr = addr - s->base;
47 switch (relative_addr) {
53 printf("jazz led: invalid read [0x%x]\n", relative_addr);
61 static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
64 #ifdef TARGET_WORDS_BIGENDIAN
65 v = led_readb(opaque, addr) << 8;
66 v |= led_readb(opaque, addr + 1);
68 v = led_readb(opaque, addr);
69 v |= led_readb(opaque, addr + 1) << 8;
74 static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
77 #ifdef TARGET_WORDS_BIGENDIAN
78 v = led_readb(opaque, addr) << 24;
79 v |= led_readb(opaque, addr + 1) << 16;
80 v |= led_readb(opaque, addr + 2) << 8;
81 v |= led_readb(opaque, addr + 3);
83 v = led_readb(opaque, addr);
84 v |= led_readb(opaque, addr + 1) << 8;
85 v |= led_readb(opaque, addr + 2) << 16;
86 v |= led_readb(opaque, addr + 3) << 24;
91 static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
94 int relative_addr = addr - s->base;
96 switch (relative_addr) {
99 s->state |= REDRAW_SEGMENTS;
103 printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
109 static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
111 #ifdef TARGET_WORDS_BIGENDIAN
112 led_writeb(opaque, addr, (val >> 8) & 0xff);
113 led_writeb(opaque, addr + 1, val & 0xff);
115 led_writeb(opaque, addr, val & 0xff);
116 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
120 static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
122 #ifdef TARGET_WORDS_BIGENDIAN
123 led_writeb(opaque, addr, (val >> 24) & 0xff);
124 led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
125 led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
126 led_writeb(opaque, addr + 3, val & 0xff);
128 led_writeb(opaque, addr, val & 0xff);
129 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
130 led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
131 led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
135 static CPUReadMemoryFunc *led_read[3] = {
141 static CPUWriteMemoryFunc *led_write[3] = {
147 /***********************************************************/
148 /* jazz_led display */
150 static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
155 bpp = (ds->depth + 7) >> 3;
156 d = ds->data + ds->linesize * posy + bpp * posx1;
159 for (x = posx1; x <= posx2; x++) {
160 *((uint8_t *)d) = color;
165 for (x = posx1; x <= posx2; x++) {
166 *((uint16_t *)d) = color;
171 for (x = posx1; x <= posx2; x++) {
172 *((uint32_t *)d) = color;
179 static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
184 bpp = (ds->depth + 7) >> 3;
185 d = ds->data + ds->linesize * posy1 + bpp * posx;
188 for (y = posy1; y <= posy2; y++) {
189 *((uint8_t *)d) = color;
194 for (y = posy1; y <= posy2; y++) {
195 *((uint16_t *)d) = color;
200 for (y = posy1; y <= posy2; y++) {
201 *((uint32_t *)d) = color;
208 static void jazz_led_update_display(void *opaque)
210 LedState *s = opaque;
211 DisplayState *ds = s->ds;
213 uint32_t color_segment, color_led;
216 if (s->state & REDRAW_BACKGROUND) {
218 bpp = (ds->depth + 7) >> 3;
220 for (y = 0; y < ds->height; y++) {
221 memset(d1, 0x00, ds->width * bpp);
226 if (s->state & REDRAW_SEGMENTS) {
227 /* set colors according to bpp */
230 color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
231 color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
234 color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
235 color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
238 color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
239 color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
241 color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
242 color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
245 color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
246 color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
252 /* display segments */
253 draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
254 draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
255 draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
256 draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
257 draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
258 draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
259 draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
262 if (!(s->segments & 0x01))
263 color_led = 0; /* black */
264 draw_horizontal_line(ds, 68, 50, 50, color_led);
265 draw_horizontal_line(ds, 69, 49, 51, color_led);
266 draw_horizontal_line(ds, 70, 48, 52, color_led);
267 draw_horizontal_line(ds, 71, 49, 51, color_led);
268 draw_horizontal_line(ds, 72, 50, 50, color_led);
271 s->state = REDRAW_NONE;
272 dpy_update(ds, 0, 0, ds->width, ds->height);
275 static void jazz_led_invalidate_display(void *opaque)
277 LedState *s = opaque;
278 s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
281 static void jazz_led_screen_dump(void *opaque, const char *filename)
283 printf("jazz_led_screen_dump() not implemented\n");
286 void jazz_led_init(DisplayState *ds, target_phys_addr_t base)
291 s = qemu_mallocz(sizeof(LedState));
297 s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
299 io = cpu_register_io_memory(0, led_read, led_write, s);
300 cpu_register_physical_memory(s->base, 1, io);
302 graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s);