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
28 #include "pixel_ops.h"
33 #define DPRINTF(fmt, ...) \
34 do { printf("jazz led: " fmt , ## __VA_ARGS__); } while (0)
36 #define DPRINTF(fmt, ...) do {} while (0)
38 #define BADF(fmt, ...) \
39 do { fprintf(stderr, "jazz led ERROR: " fmt , ## __VA_ARGS__);} while (0)
42 REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
45 typedef struct LedState {
51 static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
61 BADF("invalid read at [" TARGET_FMT_plx "]\n", addr);
65 DPRINTF("read addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
70 static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
73 #ifdef TARGET_WORDS_BIGENDIAN
74 v = led_readb(opaque, addr) << 8;
75 v |= led_readb(opaque, addr + 1);
77 v = led_readb(opaque, addr);
78 v |= led_readb(opaque, addr + 1) << 8;
83 static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
86 #ifdef TARGET_WORDS_BIGENDIAN
87 v = led_readb(opaque, addr) << 24;
88 v |= led_readb(opaque, addr + 1) << 16;
89 v |= led_readb(opaque, addr + 2) << 8;
90 v |= led_readb(opaque, addr + 3);
92 v = led_readb(opaque, addr);
93 v |= led_readb(opaque, addr + 1) << 8;
94 v |= led_readb(opaque, addr + 2) << 16;
95 v |= led_readb(opaque, addr + 3) << 24;
100 static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
102 LedState *s = opaque;
104 DPRINTF("write addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
109 s->state |= REDRAW_SEGMENTS;
112 BADF("invalid write of 0x%08x at [" TARGET_FMT_plx "]\n", val, addr);
117 static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
119 #ifdef TARGET_WORDS_BIGENDIAN
120 led_writeb(opaque, addr, (val >> 8) & 0xff);
121 led_writeb(opaque, addr + 1, val & 0xff);
123 led_writeb(opaque, addr, val & 0xff);
124 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
128 static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
130 #ifdef TARGET_WORDS_BIGENDIAN
131 led_writeb(opaque, addr, (val >> 24) & 0xff);
132 led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
133 led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
134 led_writeb(opaque, addr + 3, val & 0xff);
136 led_writeb(opaque, addr, val & 0xff);
137 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
138 led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
139 led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
143 static CPUReadMemoryFunc * const led_read[3] = {
149 static CPUWriteMemoryFunc * const led_write[3] = {
155 /***********************************************************/
156 /* jazz_led display */
158 static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
163 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
164 d = ds_get_data(ds) + ds_get_linesize(ds) * posy + bpp * posx1;
167 for (x = posx1; x <= posx2; x++) {
168 *((uint8_t *)d) = color;
173 for (x = posx1; x <= posx2; x++) {
174 *((uint16_t *)d) = color;
179 for (x = posx1; x <= posx2; x++) {
180 *((uint32_t *)d) = color;
187 static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
192 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
193 d = ds_get_data(ds) + ds_get_linesize(ds) * posy1 + bpp * posx;
196 for (y = posy1; y <= posy2; y++) {
197 *((uint8_t *)d) = color;
198 d += ds_get_linesize(ds);
202 for (y = posy1; y <= posy2; y++) {
203 *((uint16_t *)d) = color;
204 d += ds_get_linesize(ds);
208 for (y = posy1; y <= posy2; y++) {
209 *((uint32_t *)d) = color;
210 d += ds_get_linesize(ds);
216 static void jazz_led_update_display(void *opaque)
218 LedState *s = opaque;
219 DisplayState *ds = s->ds;
221 uint32_t color_segment, color_led;
224 if (s->state & REDRAW_BACKGROUND) {
226 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
227 d1 = ds_get_data(ds);
228 for (y = 0; y < ds_get_height(ds); y++) {
229 memset(d1, 0x00, ds_get_width(ds) * bpp);
230 d1 += ds_get_linesize(ds);
234 if (s->state & REDRAW_SEGMENTS) {
235 /* set colors according to bpp */
236 switch (ds_get_bits_per_pixel(ds)) {
238 color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
239 color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
242 color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
243 color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
246 color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
247 color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
249 color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
250 color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
253 color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
254 color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
260 /* display segments */
261 draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
262 draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
263 draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
264 draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
265 draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
266 draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
267 draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
270 if (!(s->segments & 0x01))
271 color_led = 0; /* black */
272 draw_horizontal_line(ds, 68, 50, 50, color_led);
273 draw_horizontal_line(ds, 69, 49, 51, color_led);
274 draw_horizontal_line(ds, 70, 48, 52, color_led);
275 draw_horizontal_line(ds, 71, 49, 51, color_led);
276 draw_horizontal_line(ds, 72, 50, 50, color_led);
279 s->state = REDRAW_NONE;
280 dpy_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
283 static void jazz_led_invalidate_display(void *opaque)
285 LedState *s = opaque;
286 s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
289 static void jazz_led_screen_dump(void *opaque, const char *filename)
291 printf("jazz_led_screen_dump() not implemented\n");
294 static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
296 LedState *s = opaque;
299 dpy_cursor(s->ds, -1, -1);
300 qemu_console_resize(s->ds, 2, 1);
302 /* TODO: draw the segments */
303 snprintf(buf, 2, "%02hhx\n", s->segments);
304 console_write_ch(chardata++, 0x00200100 | buf[0]);
305 console_write_ch(chardata++, 0x00200100 | buf[1]);
307 dpy_update(s->ds, 0, 0, 2, 1);
310 void jazz_led_init(target_phys_addr_t base)
315 s = g_malloc0(sizeof(LedState));
317 s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
319 io = cpu_register_io_memory(led_read, led_write, s,
320 DEVICE_NATIVE_ENDIAN);
321 cpu_register_physical_memory(base, 1, io);
323 s->ds = graphic_console_init(jazz_led_update_display,
324 jazz_led_invalidate_display,
325 jazz_led_screen_dump,
326 jazz_led_text_update, s);
327 qemu_console_resize(s->ds, 60, 80);