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"
32 REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
35 typedef struct LedState {
42 static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
52 error_report("invalid read at [" TARGET_FMT_plx "]\n", addr);
56 trace_jazz_led_read(addr, val);
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 uint8_t new_val = val & 0xff;
96 trace_jazz_led_write(addr, new_val);
100 s->segments = new_val;
101 s->state |= REDRAW_SEGMENTS;
104 error_report("invalid write of 0x%x at [" TARGET_FMT_plx "]\n",
110 static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
112 #ifdef TARGET_WORDS_BIGENDIAN
113 led_writeb(opaque, addr, (val >> 8) & 0xff);
114 led_writeb(opaque, addr + 1, val & 0xff);
116 led_writeb(opaque, addr, val & 0xff);
117 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
121 static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
123 #ifdef TARGET_WORDS_BIGENDIAN
124 led_writeb(opaque, addr, (val >> 24) & 0xff);
125 led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
126 led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
127 led_writeb(opaque, addr + 3, val & 0xff);
129 led_writeb(opaque, addr, val & 0xff);
130 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
131 led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
132 led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
136 static const MemoryRegionOps led_ops = {
138 .read = { led_readb, led_readw, led_readl, },
139 .write = { led_writeb, led_writew, led_writel, },
141 .endianness = DEVICE_NATIVE_ENDIAN,
144 /***********************************************************/
145 /* jazz_led display */
147 static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
152 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
153 d = ds_get_data(ds) + ds_get_linesize(ds) * posy + bpp * posx1;
156 for (x = posx1; x <= posx2; x++) {
157 *((uint8_t *)d) = color;
162 for (x = posx1; x <= posx2; x++) {
163 *((uint16_t *)d) = color;
168 for (x = posx1; x <= posx2; x++) {
169 *((uint32_t *)d) = color;
176 static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
181 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
182 d = ds_get_data(ds) + ds_get_linesize(ds) * posy1 + bpp * posx;
185 for (y = posy1; y <= posy2; y++) {
186 *((uint8_t *)d) = color;
187 d += ds_get_linesize(ds);
191 for (y = posy1; y <= posy2; y++) {
192 *((uint16_t *)d) = color;
193 d += ds_get_linesize(ds);
197 for (y = posy1; y <= posy2; y++) {
198 *((uint32_t *)d) = color;
199 d += ds_get_linesize(ds);
205 static void jazz_led_update_display(void *opaque)
207 LedState *s = opaque;
208 DisplayState *ds = s->ds;
210 uint32_t color_segment, color_led;
213 if (s->state & REDRAW_BACKGROUND) {
215 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
216 d1 = ds_get_data(ds);
217 for (y = 0; y < ds_get_height(ds); y++) {
218 memset(d1, 0x00, ds_get_width(ds) * bpp);
219 d1 += ds_get_linesize(ds);
223 if (s->state & REDRAW_SEGMENTS) {
224 /* set colors according to bpp */
225 switch (ds_get_bits_per_pixel(ds)) {
227 color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
228 color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
231 color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
232 color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
235 color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
236 color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
238 color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
239 color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
242 color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
243 color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
249 /* display segments */
250 draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
251 draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
252 draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
253 draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
254 draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
255 draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
256 draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
259 if (!(s->segments & 0x01))
260 color_led = 0; /* black */
261 draw_horizontal_line(ds, 68, 50, 50, color_led);
262 draw_horizontal_line(ds, 69, 49, 51, color_led);
263 draw_horizontal_line(ds, 70, 48, 52, color_led);
264 draw_horizontal_line(ds, 71, 49, 51, color_led);
265 draw_horizontal_line(ds, 72, 50, 50, color_led);
268 s->state = REDRAW_NONE;
269 dpy_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
272 static void jazz_led_invalidate_display(void *opaque)
274 LedState *s = opaque;
275 s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
278 static void jazz_led_screen_dump(void *opaque, const char *filename)
280 printf("jazz_led_screen_dump() not implemented\n");
283 static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
285 LedState *s = opaque;
288 dpy_cursor(s->ds, -1, -1);
289 qemu_console_resize(s->ds, 2, 1);
291 /* TODO: draw the segments */
292 snprintf(buf, 2, "%02hhx\n", s->segments);
293 console_write_ch(chardata++, 0x00200100 | buf[0]);
294 console_write_ch(chardata++, 0x00200100 | buf[1]);
296 dpy_update(s->ds, 0, 0, 2, 1);
299 void jazz_led_init(MemoryRegion *address_space, target_phys_addr_t base)
303 s = g_malloc0(sizeof(LedState));
305 s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
307 memory_region_init_io(&s->iomem, &led_ops, s, "led", 1);
308 memory_region_add_subregion(address_space, base, &s->iomem);
310 s->ds = graphic_console_init(jazz_led_update_display,
311 jazz_led_invalidate_display,
312 jazz_led_screen_dump,
313 jazz_led_text_update, s);
314 qemu_console_resize(s->ds, 60, 80);