root / hw / jazz_led.c @ 87ecb68b
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1 | 31211df1 | ths | /*
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2 | 31211df1 | ths | * QEMU JAZZ LED emulator.
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3 | 5fafdf24 | ths | *
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4 | 31211df1 | ths | * Copyright (c) 2007 Herv? Poussineau
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5 | 5fafdf24 | ths | *
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6 | 31211df1 | ths | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 31211df1 | ths | * of this software and associated documentation files (the "Software"), to deal
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8 | 31211df1 | ths | * in the Software without restriction, including without limitation the rights
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9 | 31211df1 | ths | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 31211df1 | ths | * copies of the Software, and to permit persons to whom the Software is
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11 | 31211df1 | ths | * furnished to do so, subject to the following conditions:
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12 | 31211df1 | ths | *
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13 | 31211df1 | ths | * The above copyright notice and this permission notice shall be included in
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14 | 31211df1 | ths | * all copies or substantial portions of the Software.
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15 | 31211df1 | ths | *
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16 | 31211df1 | ths | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 31211df1 | ths | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 31211df1 | ths | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 31211df1 | ths | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 31211df1 | ths | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 31211df1 | ths | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 31211df1 | ths | * THE SOFTWARE.
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23 | 31211df1 | ths | */
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24 | 31211df1 | ths | |
25 | 87ecb68b | pbrook | #include "hw.h" |
26 | 87ecb68b | pbrook | #include "mips.h" |
27 | 87ecb68b | pbrook | #include "console.h" |
28 | 31211df1 | ths | #include "pixel_ops.h" |
29 | 31211df1 | ths | |
30 | 31211df1 | ths | //#define DEBUG_LED
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31 | 31211df1 | ths | |
32 | 31211df1 | ths | typedef enum { |
33 | 31211df1 | ths | REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2, |
34 | 31211df1 | ths | } screen_state_t; |
35 | 31211df1 | ths | |
36 | 31211df1 | ths | typedef struct LedState { |
37 | 31211df1 | ths | target_phys_addr_t base; |
38 | 31211df1 | ths | uint8_t segments; |
39 | 31211df1 | ths | DisplayState *ds; |
40 | 31211df1 | ths | screen_state_t state; |
41 | 31211df1 | ths | } LedState; |
42 | 31211df1 | ths | |
43 | 31211df1 | ths | static uint32_t led_readb(void *opaque, target_phys_addr_t addr) |
44 | 31211df1 | ths | { |
45 | 31211df1 | ths | LedState *s = opaque; |
46 | 31211df1 | ths | int relative_addr = addr - s->base;
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47 | 31211df1 | ths | uint32_t val; |
48 | 31211df1 | ths | |
49 | 31211df1 | ths | switch (relative_addr) {
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50 | 31211df1 | ths | case 0: |
51 | 31211df1 | ths | val = s->segments; |
52 | 31211df1 | ths | break;
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53 | 31211df1 | ths | default:
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54 | 31211df1 | ths | #ifdef DEBUG_LED
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55 | 31211df1 | ths | printf("jazz led: invalid read [0x%x]\n", relative_addr);
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56 | 31211df1 | ths | #endif
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57 | 31211df1 | ths | val = 0;
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58 | 31211df1 | ths | } |
59 | 31211df1 | ths | |
60 | 31211df1 | ths | return val;
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61 | 31211df1 | ths | } |
62 | 31211df1 | ths | |
63 | 31211df1 | ths | static uint32_t led_readw(void *opaque, target_phys_addr_t addr) |
64 | 31211df1 | ths | { |
65 | 31211df1 | ths | uint32_t v; |
66 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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67 | 31211df1 | ths | v = led_readb(opaque, addr) << 8;
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68 | 31211df1 | ths | v |= led_readb(opaque, addr + 1);
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69 | 31211df1 | ths | #else
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70 | 31211df1 | ths | v = led_readb(opaque, addr); |
71 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 8; |
72 | 31211df1 | ths | #endif
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73 | 31211df1 | ths | return v;
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74 | 31211df1 | ths | } |
75 | 31211df1 | ths | |
76 | 31211df1 | ths | static uint32_t led_readl(void *opaque, target_phys_addr_t addr) |
77 | 31211df1 | ths | { |
78 | 31211df1 | ths | uint32_t v; |
79 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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80 | 31211df1 | ths | v = led_readb(opaque, addr) << 24;
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81 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 16; |
82 | 31211df1 | ths | v |= led_readb(opaque, addr + 2) << 8; |
83 | 31211df1 | ths | v |= led_readb(opaque, addr + 3);
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84 | 31211df1 | ths | #else
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85 | 31211df1 | ths | v = led_readb(opaque, addr); |
86 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 8; |
87 | 31211df1 | ths | v |= led_readb(opaque, addr + 2) << 16; |
88 | 31211df1 | ths | v |= led_readb(opaque, addr + 3) << 24; |
89 | 31211df1 | ths | #endif
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90 | 31211df1 | ths | return v;
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91 | 31211df1 | ths | } |
92 | 31211df1 | ths | |
93 | 31211df1 | ths | static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
94 | 31211df1 | ths | { |
95 | 31211df1 | ths | LedState *s = opaque; |
96 | 31211df1 | ths | int relative_addr = addr - s->base;
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97 | 31211df1 | ths | |
98 | 31211df1 | ths | switch (relative_addr) {
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99 | 31211df1 | ths | case 0: |
100 | 31211df1 | ths | s->segments = val; |
101 | 31211df1 | ths | s->state |= REDRAW_SEGMENTS; |
102 | 31211df1 | ths | break;
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103 | 31211df1 | ths | default:
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104 | 31211df1 | ths | #ifdef DEBUG_LED
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105 | 31211df1 | ths | printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
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106 | 31211df1 | ths | #endif
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107 | 31211df1 | ths | break;
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108 | 31211df1 | ths | } |
109 | 31211df1 | ths | } |
110 | 31211df1 | ths | |
111 | 31211df1 | ths | static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
112 | 31211df1 | ths | { |
113 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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114 | 31211df1 | ths | led_writeb(opaque, addr, (val >> 8) & 0xff); |
115 | 31211df1 | ths | led_writeb(opaque, addr + 1, val & 0xff); |
116 | 31211df1 | ths | #else
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117 | 31211df1 | ths | led_writeb(opaque, addr, val & 0xff);
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118 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
119 | 31211df1 | ths | #endif
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120 | 31211df1 | ths | } |
121 | 31211df1 | ths | |
122 | 31211df1 | ths | static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
123 | 31211df1 | ths | { |
124 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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125 | 31211df1 | ths | led_writeb(opaque, addr, (val >> 24) & 0xff); |
126 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 16) & 0xff); |
127 | 31211df1 | ths | led_writeb(opaque, addr + 2, (val >> 8) & 0xff); |
128 | 31211df1 | ths | led_writeb(opaque, addr + 3, val & 0xff); |
129 | 31211df1 | ths | #else
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130 | 31211df1 | ths | led_writeb(opaque, addr, val & 0xff);
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131 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
132 | 31211df1 | ths | led_writeb(opaque, addr + 2, (val >> 16) & 0xff); |
133 | 31211df1 | ths | led_writeb(opaque, addr + 3, (val >> 24) & 0xff); |
134 | 31211df1 | ths | #endif
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135 | 31211df1 | ths | } |
136 | 31211df1 | ths | |
137 | 31211df1 | ths | static CPUReadMemoryFunc *led_read[3] = { |
138 | 31211df1 | ths | led_readb, |
139 | 31211df1 | ths | led_readw, |
140 | 31211df1 | ths | led_readl, |
141 | 31211df1 | ths | }; |
142 | 31211df1 | ths | |
143 | 31211df1 | ths | static CPUWriteMemoryFunc *led_write[3] = { |
144 | 31211df1 | ths | led_writeb, |
145 | 31211df1 | ths | led_writew, |
146 | 31211df1 | ths | led_writel, |
147 | 31211df1 | ths | }; |
148 | 31211df1 | ths | |
149 | 31211df1 | ths | /***********************************************************/
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150 | 31211df1 | ths | /* jazz_led display */
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151 | 31211df1 | ths | |
152 | 31211df1 | ths | static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color) |
153 | 31211df1 | ths | { |
154 | 31211df1 | ths | uint8_t *d; |
155 | 31211df1 | ths | int x, bpp;
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156 | 31211df1 | ths | |
157 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
158 | 31211df1 | ths | d = ds->data + ds->linesize * posy + bpp * posx1; |
159 | 31211df1 | ths | switch(bpp) {
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160 | 31211df1 | ths | case 1: |
161 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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162 | 31211df1 | ths | *((uint8_t *)d) = color; |
163 | 31211df1 | ths | d++; |
164 | 31211df1 | ths | } |
165 | 31211df1 | ths | break;
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166 | 31211df1 | ths | case 2: |
167 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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168 | 31211df1 | ths | *((uint16_t *)d) = color; |
169 | 31211df1 | ths | d += 2;
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170 | 31211df1 | ths | } |
171 | 31211df1 | ths | break;
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172 | 31211df1 | ths | case 4: |
173 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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174 | 31211df1 | ths | *((uint32_t *)d) = color; |
175 | 31211df1 | ths | d += 4;
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176 | 31211df1 | ths | } |
177 | 31211df1 | ths | break;
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178 | 31211df1 | ths | } |
179 | 31211df1 | ths | } |
180 | 31211df1 | ths | |
181 | 31211df1 | ths | static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color) |
182 | 31211df1 | ths | { |
183 | 31211df1 | ths | uint8_t *d; |
184 | 31211df1 | ths | int y, bpp;
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185 | 31211df1 | ths | |
186 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
187 | 31211df1 | ths | d = ds->data + ds->linesize * posy1 + bpp * posx; |
188 | 31211df1 | ths | switch(bpp) {
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189 | 31211df1 | ths | case 1: |
190 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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191 | 31211df1 | ths | *((uint8_t *)d) = color; |
192 | 31211df1 | ths | d += ds->linesize; |
193 | 31211df1 | ths | } |
194 | 31211df1 | ths | break;
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195 | 31211df1 | ths | case 2: |
196 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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197 | 31211df1 | ths | *((uint16_t *)d) = color; |
198 | 31211df1 | ths | d += ds->linesize; |
199 | 31211df1 | ths | } |
200 | 31211df1 | ths | break;
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201 | 31211df1 | ths | case 4: |
202 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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203 | 31211df1 | ths | *((uint32_t *)d) = color; |
204 | 31211df1 | ths | d += ds->linesize; |
205 | 31211df1 | ths | } |
206 | 31211df1 | ths | break;
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207 | 31211df1 | ths | } |
208 | 31211df1 | ths | } |
209 | 31211df1 | ths | |
210 | 31211df1 | ths | static void jazz_led_update_display(void *opaque) |
211 | 31211df1 | ths | { |
212 | 31211df1 | ths | LedState *s = opaque; |
213 | 31211df1 | ths | DisplayState *ds = s->ds; |
214 | 31211df1 | ths | uint8_t *d1; |
215 | 31211df1 | ths | uint32_t color_segment, color_led; |
216 | 31211df1 | ths | int y, bpp;
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217 | 31211df1 | ths | |
218 | 31211df1 | ths | if (s->state & REDRAW_BACKGROUND) {
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219 | 31211df1 | ths | /* clear screen */
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220 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
221 | 31211df1 | ths | d1 = ds->data; |
222 | 31211df1 | ths | for (y = 0; y < ds->height; y++) { |
223 | 31211df1 | ths | memset(d1, 0x00, ds->width * bpp);
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224 | 31211df1 | ths | d1 += ds->linesize; |
225 | 31211df1 | ths | } |
226 | 31211df1 | ths | } |
227 | 31211df1 | ths | |
228 | 31211df1 | ths | if (s->state & REDRAW_SEGMENTS) {
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229 | 31211df1 | ths | /* set colors according to bpp */
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230 | 31211df1 | ths | switch (ds->depth) {
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231 | 31211df1 | ths | case 8: |
232 | 31211df1 | ths | color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa); |
233 | 31211df1 | ths | color_led = rgb_to_pixel8(0x00, 0xff, 0x00); |
234 | 31211df1 | ths | break;
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235 | 31211df1 | ths | case 15: |
236 | 31211df1 | ths | color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa); |
237 | 31211df1 | ths | color_led = rgb_to_pixel15(0x00, 0xff, 0x00); |
238 | 31211df1 | ths | break;
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239 | 31211df1 | ths | case 16: |
240 | 31211df1 | ths | color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa); |
241 | 31211df1 | ths | color_led = rgb_to_pixel16(0x00, 0xff, 0x00); |
242 | 31211df1 | ths | case 24: |
243 | 31211df1 | ths | color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa); |
244 | 31211df1 | ths | color_led = rgb_to_pixel24(0x00, 0xff, 0x00); |
245 | 31211df1 | ths | break;
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246 | 31211df1 | ths | case 32: |
247 | 31211df1 | ths | color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa); |
248 | 31211df1 | ths | color_led = rgb_to_pixel32(0x00, 0xff, 0x00); |
249 | 31211df1 | ths | break;
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250 | 31211df1 | ths | default:
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251 | 31211df1 | ths | return;
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252 | 31211df1 | ths | } |
253 | 31211df1 | ths | |
254 | 31211df1 | ths | /* display segments */
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255 | 31211df1 | ths | draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0); |
256 | 31211df1 | ths | draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0); |
257 | 31211df1 | ths | draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0); |
258 | 31211df1 | ths | draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0); |
259 | 31211df1 | ths | draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0); |
260 | 31211df1 | ths | draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0); |
261 | 31211df1 | ths | draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0); |
262 | 31211df1 | ths | |
263 | 31211df1 | ths | /* display led */
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264 | 31211df1 | ths | if (!(s->segments & 0x01)) |
265 | 31211df1 | ths | color_led = 0; /* black */ |
266 | 31211df1 | ths | draw_horizontal_line(ds, 68, 50, 50, color_led); |
267 | 31211df1 | ths | draw_horizontal_line(ds, 69, 49, 51, color_led); |
268 | 31211df1 | ths | draw_horizontal_line(ds, 70, 48, 52, color_led); |
269 | 31211df1 | ths | draw_horizontal_line(ds, 71, 49, 51, color_led); |
270 | 31211df1 | ths | draw_horizontal_line(ds, 72, 50, 50, color_led); |
271 | 31211df1 | ths | } |
272 | 31211df1 | ths | |
273 | 31211df1 | ths | s->state = REDRAW_NONE; |
274 | 31211df1 | ths | dpy_update(ds, 0, 0, ds->width, ds->height); |
275 | 31211df1 | ths | } |
276 | 31211df1 | ths | |
277 | 31211df1 | ths | static void jazz_led_invalidate_display(void *opaque) |
278 | 31211df1 | ths | { |
279 | 31211df1 | ths | LedState *s = opaque; |
280 | 31211df1 | ths | s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
281 | 31211df1 | ths | } |
282 | 31211df1 | ths | |
283 | 31211df1 | ths | static void jazz_led_screen_dump(void *opaque, const char *filename) |
284 | 31211df1 | ths | { |
285 | 31211df1 | ths | printf("jazz_led_screen_dump() not implemented\n");
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286 | 31211df1 | ths | } |
287 | 31211df1 | ths | |
288 | 31211df1 | ths | void jazz_led_init(DisplayState *ds, target_phys_addr_t base)
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289 | 31211df1 | ths | { |
290 | 31211df1 | ths | LedState *s; |
291 | 31211df1 | ths | int io;
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292 | 31211df1 | ths | |
293 | 31211df1 | ths | s = qemu_mallocz(sizeof(LedState));
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294 | 31211df1 | ths | if (!s)
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295 | 31211df1 | ths | return;
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296 | 31211df1 | ths | |
297 | 31211df1 | ths | s->base = base; |
298 | 31211df1 | ths | s->ds = ds; |
299 | 31211df1 | ths | s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
300 | 31211df1 | ths | |
301 | 31211df1 | ths | io = cpu_register_io_memory(0, led_read, led_write, s);
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302 | 31211df1 | ths | cpu_register_physical_memory(s->base, 1, io);
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303 | 31211df1 | ths | |
304 | 31211df1 | ths | graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s); |
305 | 31211df1 | ths | } |