root / hw / jazz_led.c @ e3d7e843
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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 | 31211df1 | ths | #include "vl.h" |
26 | 31211df1 | ths | #include "pixel_ops.h" |
27 | 31211df1 | ths | |
28 | 31211df1 | ths | //#define DEBUG_LED
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29 | 31211df1 | ths | |
30 | 31211df1 | ths | typedef enum { |
31 | 31211df1 | ths | REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2, |
32 | 31211df1 | ths | } screen_state_t; |
33 | 31211df1 | ths | |
34 | 31211df1 | ths | typedef struct LedState { |
35 | 31211df1 | ths | target_phys_addr_t base; |
36 | 31211df1 | ths | uint8_t segments; |
37 | 31211df1 | ths | DisplayState *ds; |
38 | 31211df1 | ths | screen_state_t state; |
39 | 31211df1 | ths | } LedState; |
40 | 31211df1 | ths | |
41 | 31211df1 | ths | static uint32_t led_readb(void *opaque, target_phys_addr_t addr) |
42 | 31211df1 | ths | { |
43 | 31211df1 | ths | LedState *s = opaque; |
44 | 31211df1 | ths | int relative_addr = addr - s->base;
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45 | 31211df1 | ths | uint32_t val; |
46 | 31211df1 | ths | |
47 | 31211df1 | ths | switch (relative_addr) {
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48 | 31211df1 | ths | case 0: |
49 | 31211df1 | ths | val = s->segments; |
50 | 31211df1 | ths | break;
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51 | 31211df1 | ths | default:
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52 | 31211df1 | ths | #ifdef DEBUG_LED
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53 | 31211df1 | ths | printf("jazz led: invalid read [0x%x]\n", relative_addr);
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54 | 31211df1 | ths | #endif
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55 | 31211df1 | ths | val = 0;
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56 | 31211df1 | ths | } |
57 | 31211df1 | ths | |
58 | 31211df1 | ths | return val;
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59 | 31211df1 | ths | } |
60 | 31211df1 | ths | |
61 | 31211df1 | ths | static uint32_t led_readw(void *opaque, target_phys_addr_t addr) |
62 | 31211df1 | ths | { |
63 | 31211df1 | ths | uint32_t v; |
64 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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65 | 31211df1 | ths | v = led_readb(opaque, addr) << 8;
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66 | 31211df1 | ths | v |= led_readb(opaque, addr + 1);
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67 | 31211df1 | ths | #else
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68 | 31211df1 | ths | v = led_readb(opaque, addr); |
69 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 8; |
70 | 31211df1 | ths | #endif
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71 | 31211df1 | ths | return v;
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72 | 31211df1 | ths | } |
73 | 31211df1 | ths | |
74 | 31211df1 | ths | static uint32_t led_readl(void *opaque, target_phys_addr_t addr) |
75 | 31211df1 | ths | { |
76 | 31211df1 | ths | uint32_t v; |
77 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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78 | 31211df1 | ths | v = led_readb(opaque, addr) << 24;
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79 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 16; |
80 | 31211df1 | ths | v |= led_readb(opaque, addr + 2) << 8; |
81 | 31211df1 | ths | v |= led_readb(opaque, addr + 3);
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82 | 31211df1 | ths | #else
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83 | 31211df1 | ths | v = led_readb(opaque, addr); |
84 | 31211df1 | ths | v |= led_readb(opaque, addr + 1) << 8; |
85 | 31211df1 | ths | v |= led_readb(opaque, addr + 2) << 16; |
86 | 31211df1 | ths | v |= led_readb(opaque, addr + 3) << 24; |
87 | 31211df1 | ths | #endif
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88 | 31211df1 | ths | return v;
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89 | 31211df1 | ths | } |
90 | 31211df1 | ths | |
91 | 31211df1 | ths | static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
92 | 31211df1 | ths | { |
93 | 31211df1 | ths | LedState *s = opaque; |
94 | 31211df1 | ths | int relative_addr = addr - s->base;
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95 | 31211df1 | ths | |
96 | 31211df1 | ths | switch (relative_addr) {
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97 | 31211df1 | ths | case 0: |
98 | 31211df1 | ths | s->segments = val; |
99 | 31211df1 | ths | s->state |= REDRAW_SEGMENTS; |
100 | 31211df1 | ths | break;
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101 | 31211df1 | ths | default:
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102 | 31211df1 | ths | #ifdef DEBUG_LED
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103 | 31211df1 | ths | printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
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104 | 31211df1 | ths | #endif
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105 | 31211df1 | ths | break;
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106 | 31211df1 | ths | } |
107 | 31211df1 | ths | } |
108 | 31211df1 | ths | |
109 | 31211df1 | ths | static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
110 | 31211df1 | ths | { |
111 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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112 | 31211df1 | ths | led_writeb(opaque, addr, (val >> 8) & 0xff); |
113 | 31211df1 | ths | led_writeb(opaque, addr + 1, val & 0xff); |
114 | 31211df1 | ths | #else
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115 | 31211df1 | ths | led_writeb(opaque, addr, val & 0xff);
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116 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
117 | 31211df1 | ths | #endif
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118 | 31211df1 | ths | } |
119 | 31211df1 | ths | |
120 | 31211df1 | ths | static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
121 | 31211df1 | ths | { |
122 | 31211df1 | ths | #ifdef TARGET_WORDS_BIGENDIAN
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123 | 31211df1 | ths | led_writeb(opaque, addr, (val >> 24) & 0xff); |
124 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 16) & 0xff); |
125 | 31211df1 | ths | led_writeb(opaque, addr + 2, (val >> 8) & 0xff); |
126 | 31211df1 | ths | led_writeb(opaque, addr + 3, val & 0xff); |
127 | 31211df1 | ths | #else
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128 | 31211df1 | ths | led_writeb(opaque, addr, val & 0xff);
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129 | 31211df1 | ths | led_writeb(opaque, addr + 1, (val >> 8) & 0xff); |
130 | 31211df1 | ths | led_writeb(opaque, addr + 2, (val >> 16) & 0xff); |
131 | 31211df1 | ths | led_writeb(opaque, addr + 3, (val >> 24) & 0xff); |
132 | 31211df1 | ths | #endif
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133 | 31211df1 | ths | } |
134 | 31211df1 | ths | |
135 | 31211df1 | ths | static CPUReadMemoryFunc *led_read[3] = { |
136 | 31211df1 | ths | led_readb, |
137 | 31211df1 | ths | led_readw, |
138 | 31211df1 | ths | led_readl, |
139 | 31211df1 | ths | }; |
140 | 31211df1 | ths | |
141 | 31211df1 | ths | static CPUWriteMemoryFunc *led_write[3] = { |
142 | 31211df1 | ths | led_writeb, |
143 | 31211df1 | ths | led_writew, |
144 | 31211df1 | ths | led_writel, |
145 | 31211df1 | ths | }; |
146 | 31211df1 | ths | |
147 | 31211df1 | ths | /***********************************************************/
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148 | 31211df1 | ths | /* jazz_led display */
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149 | 31211df1 | ths | |
150 | 31211df1 | ths | static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color) |
151 | 31211df1 | ths | { |
152 | 31211df1 | ths | uint8_t *d; |
153 | 31211df1 | ths | int x, bpp;
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154 | 31211df1 | ths | |
155 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
156 | 31211df1 | ths | d = ds->data + ds->linesize * posy + bpp * posx1; |
157 | 31211df1 | ths | switch(bpp) {
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158 | 31211df1 | ths | case 1: |
159 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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160 | 31211df1 | ths | *((uint8_t *)d) = color; |
161 | 31211df1 | ths | d++; |
162 | 31211df1 | ths | } |
163 | 31211df1 | ths | break;
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164 | 31211df1 | ths | case 2: |
165 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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166 | 31211df1 | ths | *((uint16_t *)d) = color; |
167 | 31211df1 | ths | d += 2;
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168 | 31211df1 | ths | } |
169 | 31211df1 | ths | break;
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170 | 31211df1 | ths | case 4: |
171 | 31211df1 | ths | for (x = posx1; x <= posx2; x++) {
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172 | 31211df1 | ths | *((uint32_t *)d) = color; |
173 | 31211df1 | ths | d += 4;
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174 | 31211df1 | ths | } |
175 | 31211df1 | ths | break;
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176 | 31211df1 | ths | } |
177 | 31211df1 | ths | } |
178 | 31211df1 | ths | |
179 | 31211df1 | ths | static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color) |
180 | 31211df1 | ths | { |
181 | 31211df1 | ths | uint8_t *d; |
182 | 31211df1 | ths | int y, bpp;
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183 | 31211df1 | ths | |
184 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
185 | 31211df1 | ths | d = ds->data + ds->linesize * posy1 + bpp * posx; |
186 | 31211df1 | ths | switch(bpp) {
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187 | 31211df1 | ths | case 1: |
188 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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189 | 31211df1 | ths | *((uint8_t *)d) = color; |
190 | 31211df1 | ths | d += ds->linesize; |
191 | 31211df1 | ths | } |
192 | 31211df1 | ths | break;
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193 | 31211df1 | ths | case 2: |
194 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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195 | 31211df1 | ths | *((uint16_t *)d) = color; |
196 | 31211df1 | ths | d += ds->linesize; |
197 | 31211df1 | ths | } |
198 | 31211df1 | ths | break;
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199 | 31211df1 | ths | case 4: |
200 | 31211df1 | ths | for (y = posy1; y <= posy2; y++) {
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201 | 31211df1 | ths | *((uint32_t *)d) = color; |
202 | 31211df1 | ths | d += ds->linesize; |
203 | 31211df1 | ths | } |
204 | 31211df1 | ths | break;
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205 | 31211df1 | ths | } |
206 | 31211df1 | ths | } |
207 | 31211df1 | ths | |
208 | 31211df1 | ths | static void jazz_led_update_display(void *opaque) |
209 | 31211df1 | ths | { |
210 | 31211df1 | ths | LedState *s = opaque; |
211 | 31211df1 | ths | DisplayState *ds = s->ds; |
212 | 31211df1 | ths | uint8_t *d1; |
213 | 31211df1 | ths | uint32_t color_segment, color_led; |
214 | 31211df1 | ths | int y, bpp;
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215 | 31211df1 | ths | |
216 | 31211df1 | ths | if (s->state & REDRAW_BACKGROUND) {
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217 | 31211df1 | ths | /* clear screen */
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218 | 31211df1 | ths | bpp = (ds->depth + 7) >> 3; |
219 | 31211df1 | ths | d1 = ds->data; |
220 | 31211df1 | ths | for (y = 0; y < ds->height; y++) { |
221 | 31211df1 | ths | memset(d1, 0x00, ds->width * bpp);
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222 | 31211df1 | ths | d1 += ds->linesize; |
223 | 31211df1 | ths | } |
224 | 31211df1 | ths | } |
225 | 31211df1 | ths | |
226 | 31211df1 | ths | if (s->state & REDRAW_SEGMENTS) {
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227 | 31211df1 | ths | /* set colors according to bpp */
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228 | 31211df1 | ths | switch (ds->depth) {
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229 | 31211df1 | ths | case 8: |
230 | 31211df1 | ths | color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa); |
231 | 31211df1 | ths | color_led = rgb_to_pixel8(0x00, 0xff, 0x00); |
232 | 31211df1 | ths | break;
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233 | 31211df1 | ths | case 15: |
234 | 31211df1 | ths | color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa); |
235 | 31211df1 | ths | color_led = rgb_to_pixel15(0x00, 0xff, 0x00); |
236 | 31211df1 | ths | break;
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237 | 31211df1 | ths | case 16: |
238 | 31211df1 | ths | color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa); |
239 | 31211df1 | ths | color_led = rgb_to_pixel16(0x00, 0xff, 0x00); |
240 | 31211df1 | ths | case 24: |
241 | 31211df1 | ths | color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa); |
242 | 31211df1 | ths | color_led = rgb_to_pixel24(0x00, 0xff, 0x00); |
243 | 31211df1 | ths | break;
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244 | 31211df1 | ths | case 32: |
245 | 31211df1 | ths | color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa); |
246 | 31211df1 | ths | color_led = rgb_to_pixel32(0x00, 0xff, 0x00); |
247 | 31211df1 | ths | break;
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248 | 31211df1 | ths | default:
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249 | 31211df1 | ths | return;
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250 | 31211df1 | ths | } |
251 | 31211df1 | ths | |
252 | 31211df1 | ths | /* display segments */
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253 | 31211df1 | ths | draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0); |
254 | 31211df1 | ths | draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0); |
255 | 31211df1 | ths | draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0); |
256 | 31211df1 | ths | draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0); |
257 | 31211df1 | ths | draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0); |
258 | 31211df1 | ths | draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0); |
259 | 31211df1 | ths | draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0); |
260 | 31211df1 | ths | |
261 | 31211df1 | ths | /* display led */
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262 | 31211df1 | ths | if (!(s->segments & 0x01)) |
263 | 31211df1 | ths | color_led = 0; /* black */ |
264 | 31211df1 | ths | draw_horizontal_line(ds, 68, 50, 50, color_led); |
265 | 31211df1 | ths | draw_horizontal_line(ds, 69, 49, 51, color_led); |
266 | 31211df1 | ths | draw_horizontal_line(ds, 70, 48, 52, color_led); |
267 | 31211df1 | ths | draw_horizontal_line(ds, 71, 49, 51, color_led); |
268 | 31211df1 | ths | draw_horizontal_line(ds, 72, 50, 50, color_led); |
269 | 31211df1 | ths | } |
270 | 31211df1 | ths | |
271 | 31211df1 | ths | s->state = REDRAW_NONE; |
272 | 31211df1 | ths | dpy_update(ds, 0, 0, ds->width, ds->height); |
273 | 31211df1 | ths | } |
274 | 31211df1 | ths | |
275 | 31211df1 | ths | static void jazz_led_invalidate_display(void *opaque) |
276 | 31211df1 | ths | { |
277 | 31211df1 | ths | LedState *s = opaque; |
278 | 31211df1 | ths | s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
279 | 31211df1 | ths | } |
280 | 31211df1 | ths | |
281 | 31211df1 | ths | static void jazz_led_screen_dump(void *opaque, const char *filename) |
282 | 31211df1 | ths | { |
283 | 31211df1 | ths | printf("jazz_led_screen_dump() not implemented\n");
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284 | 31211df1 | ths | } |
285 | 31211df1 | ths | |
286 | 31211df1 | ths | void jazz_led_init(DisplayState *ds, target_phys_addr_t base)
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287 | 31211df1 | ths | { |
288 | 31211df1 | ths | LedState *s; |
289 | 31211df1 | ths | int io;
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290 | 31211df1 | ths | |
291 | 31211df1 | ths | s = qemu_mallocz(sizeof(LedState));
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292 | 31211df1 | ths | if (!s)
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293 | 31211df1 | ths | return;
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294 | 31211df1 | ths | |
295 | 31211df1 | ths | s->base = base; |
296 | 31211df1 | ths | s->ds = ds; |
297 | 31211df1 | ths | s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND; |
298 | 31211df1 | ths | |
299 | 31211df1 | ths | io = cpu_register_io_memory(0, led_read, led_write, s);
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300 | 31211df1 | ths | cpu_register_physical_memory(s->base, 1, io);
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301 | 31211df1 | ths | |
302 | 31211df1 | ths | graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s); |
303 | 31211df1 | ths | } |