Merge branch 'upstream-merge'
[qemu-kvm/markmc.git] / hw / jazz_led.c
blob18780e9371da19fdda7a896dfd445588c58d3eb6
1 /*
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
22 * THE SOFTWARE.
25 #include "hw.h"
26 #include "mips.h"
27 #include "console.h"
28 #include "pixel_ops.h"
30 //#define DEBUG_LED
32 typedef enum {
33 REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
34 } screen_state_t;
36 typedef struct LedState {
37 uint8_t segments;
38 DisplayState *ds;
39 screen_state_t state;
40 } LedState;
42 static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
44 LedState *s = opaque;
45 uint32_t val;
47 switch (addr) {
48 case 0:
49 val = s->segments;
50 break;
51 default:
52 #ifdef DEBUG_LED
53 printf("jazz led: invalid read [0x%x]\n", relative_addr);
54 #endif
55 val = 0;
58 return val;
61 static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
63 uint32_t v;
64 #ifdef TARGET_WORDS_BIGENDIAN
65 v = led_readb(opaque, addr) << 8;
66 v |= led_readb(opaque, addr + 1);
67 #else
68 v = led_readb(opaque, addr);
69 v |= led_readb(opaque, addr + 1) << 8;
70 #endif
71 return v;
74 static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
76 uint32_t v;
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);
82 #else
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;
87 #endif
88 return v;
91 static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
93 LedState *s = opaque;
95 switch (addr) {
96 case 0:
97 s->segments = val;
98 s->state |= REDRAW_SEGMENTS;
99 break;
100 default:
101 #ifdef DEBUG_LED
102 printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
103 #endif
104 break;
108 static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
110 #ifdef TARGET_WORDS_BIGENDIAN
111 led_writeb(opaque, addr, (val >> 8) & 0xff);
112 led_writeb(opaque, addr + 1, val & 0xff);
113 #else
114 led_writeb(opaque, addr, val & 0xff);
115 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
116 #endif
119 static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
121 #ifdef TARGET_WORDS_BIGENDIAN
122 led_writeb(opaque, addr, (val >> 24) & 0xff);
123 led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
124 led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
125 led_writeb(opaque, addr + 3, val & 0xff);
126 #else
127 led_writeb(opaque, addr, val & 0xff);
128 led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
129 led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
130 led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
131 #endif
134 static CPUReadMemoryFunc * const led_read[3] = {
135 led_readb,
136 led_readw,
137 led_readl,
140 static CPUWriteMemoryFunc * const led_write[3] = {
141 led_writeb,
142 led_writew,
143 led_writel,
146 /***********************************************************/
147 /* jazz_led display */
149 static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
151 uint8_t *d;
152 int x, bpp;
154 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
155 d = ds_get_data(ds) + ds_get_linesize(ds) * posy + bpp * posx1;
156 switch(bpp) {
157 case 1:
158 for (x = posx1; x <= posx2; x++) {
159 *((uint8_t *)d) = color;
160 d++;
162 break;
163 case 2:
164 for (x = posx1; x <= posx2; x++) {
165 *((uint16_t *)d) = color;
166 d += 2;
168 break;
169 case 4:
170 for (x = posx1; x <= posx2; x++) {
171 *((uint32_t *)d) = color;
172 d += 4;
174 break;
178 static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
180 uint8_t *d;
181 int y, bpp;
183 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
184 d = ds_get_data(ds) + ds_get_linesize(ds) * posy1 + bpp * posx;
185 switch(bpp) {
186 case 1:
187 for (y = posy1; y <= posy2; y++) {
188 *((uint8_t *)d) = color;
189 d += ds_get_linesize(ds);
191 break;
192 case 2:
193 for (y = posy1; y <= posy2; y++) {
194 *((uint16_t *)d) = color;
195 d += ds_get_linesize(ds);
197 break;
198 case 4:
199 for (y = posy1; y <= posy2; y++) {
200 *((uint32_t *)d) = color;
201 d += ds_get_linesize(ds);
203 break;
207 static void jazz_led_update_display(void *opaque)
209 LedState *s = opaque;
210 DisplayState *ds = s->ds;
211 uint8_t *d1;
212 uint32_t color_segment, color_led;
213 int y, bpp;
215 if (s->state & REDRAW_BACKGROUND) {
216 /* clear screen */
217 bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
218 d1 = ds_get_data(ds);
219 for (y = 0; y < ds_get_height(ds); y++) {
220 memset(d1, 0x00, ds_get_width(ds) * bpp);
221 d1 += ds_get_linesize(ds);
225 if (s->state & REDRAW_SEGMENTS) {
226 /* set colors according to bpp */
227 switch (ds_get_bits_per_pixel(ds)) {
228 case 8:
229 color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
230 color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
231 break;
232 case 15:
233 color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
234 color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
235 break;
236 case 16:
237 color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
238 color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
239 case 24:
240 color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
241 color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
242 break;
243 case 32:
244 color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
245 color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
246 break;
247 default:
248 return;
251 /* display segments */
252 draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
253 draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
254 draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
255 draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
256 draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
257 draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
258 draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
260 /* display led */
261 if (!(s->segments & 0x01))
262 color_led = 0; /* black */
263 draw_horizontal_line(ds, 68, 50, 50, color_led);
264 draw_horizontal_line(ds, 69, 49, 51, color_led);
265 draw_horizontal_line(ds, 70, 48, 52, color_led);
266 draw_horizontal_line(ds, 71, 49, 51, color_led);
267 draw_horizontal_line(ds, 72, 50, 50, color_led);
270 s->state = REDRAW_NONE;
271 dpy_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
274 static void jazz_led_invalidate_display(void *opaque)
276 LedState *s = opaque;
277 s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
280 static void jazz_led_screen_dump(void *opaque, const char *filename)
282 printf("jazz_led_screen_dump() not implemented\n");
285 static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
287 LedState *s = opaque;
288 char buf[2];
290 dpy_cursor(s->ds, -1, -1);
291 qemu_console_resize(s->ds, 2, 1);
293 /* TODO: draw the segments */
294 snprintf(buf, 2, "%02hhx\n", s->segments);
295 console_write_ch(chardata++, 0x00200100 | buf[0]);
296 console_write_ch(chardata++, 0x00200100 | buf[1]);
298 dpy_update(s->ds, 0, 0, 2, 1);
301 void jazz_led_init(target_phys_addr_t base)
303 LedState *s;
304 int io;
306 s = qemu_mallocz(sizeof(LedState));
308 s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
310 io = cpu_register_io_memory(led_read, led_write, s);
311 cpu_register_physical_memory(base, 1, io);
313 s->ds = graphic_console_init(jazz_led_update_display,
314 jazz_led_invalidate_display,
315 jazz_led_screen_dump,
316 jazz_led_text_update, s);
317 qemu_console_resize(s->ds, 60, 80);