1 #include "kvm/sdl.h" 2 3 #include "kvm/framebuffer.h" 4 #include "kvm/i8042.h" 5 #include "kvm/util.h" 6 #include "kvm/kvm.h" 7 #include "kvm/kvm-cpu.h" 8 9 #include <SDL/SDL.h> 10 #include <pthread.h> 11 #include <signal.h> 12 13 #define FRAME_RATE 25 14 15 #define SCANCODE_UNKNOWN 0 16 #define SCANCODE_NORMAL 1 17 #define SCANCODE_ESCAPED 2 18 #define SCANCODE_KEY_PAUSE 3 19 #define SCANCODE_KEY_PRNTSCRN 4 20 21 struct set2_scancode { 22 u8 code; 23 u8 type; 24 }; 25 26 #define DEFINE_SC(_code) {\ 27 .code = _code,\ 28 .type = SCANCODE_NORMAL,\ 29 } 30 31 /* escaped scancodes */ 32 #define DEFINE_ESC(_code) {\ 33 .code = _code,\ 34 .type = SCANCODE_ESCAPED,\ 35 } 36 37 static const struct set2_scancode const keymap[256] = { 38 [9] = DEFINE_SC(0x76), /* <esc> */ 39 [10] = DEFINE_SC(0x16), /* 1 */ 40 [11] = DEFINE_SC(0x1e), /* 2 */ 41 [12] = DEFINE_SC(0x26), /* 3 */ 42 [13] = DEFINE_SC(0x25), /* 4 */ 43 [14] = DEFINE_SC(0x2e), /* 5 */ 44 [15] = DEFINE_SC(0x36), /* 6 */ 45 [16] = DEFINE_SC(0x3d), /* 7 */ 46 [17] = DEFINE_SC(0x3e), /* 8 */ 47 [18] = DEFINE_SC(0x46), /* 9 */ 48 [19] = DEFINE_SC(0x45), /* 9 */ 49 [20] = DEFINE_SC(0x4e), /* - */ 50 [21] = DEFINE_SC(0x55), /* + */ 51 [22] = DEFINE_SC(0x66), /* <backspace> */ 52 [23] = DEFINE_SC(0x0d), /* <tab> */ 53 [24] = DEFINE_SC(0x15), /* q */ 54 [25] = DEFINE_SC(0x1d), /* w */ 55 [26] = DEFINE_SC(0x24), /* e */ 56 [27] = DEFINE_SC(0x2d), /* r */ 57 [28] = DEFINE_SC(0x2c), /* t */ 58 [29] = DEFINE_SC(0x35), /* y */ 59 [30] = DEFINE_SC(0x3c), /* u */ 60 [31] = DEFINE_SC(0x43), /* i */ 61 [32] = DEFINE_SC(0x44), /* o */ 62 [33] = DEFINE_SC(0x4d), /* p */ 63 [34] = DEFINE_SC(0x54), /* [ */ 64 [35] = DEFINE_SC(0x5b), /* ] */ 65 [36] = DEFINE_SC(0x5a), /* <enter> */ 66 [37] = DEFINE_SC(0x14), /* <left ctrl> */ 67 [38] = DEFINE_SC(0x1c), /* a */ 68 [39] = DEFINE_SC(0x1b), /* s */ 69 [40] = DEFINE_SC(0x23), /* d */ 70 [41] = DEFINE_SC(0x2b), /* f */ 71 [42] = DEFINE_SC(0x34), /* g */ 72 [43] = DEFINE_SC(0x33), /* h */ 73 [44] = DEFINE_SC(0x3b), /* j */ 74 [45] = DEFINE_SC(0x42), /* k */ 75 [46] = DEFINE_SC(0x4b), /* l */ 76 [47] = DEFINE_SC(0x4c), /* ; */ 77 [48] = DEFINE_SC(0x52), /* ' */ 78 [49] = DEFINE_SC(0x0e), /* ` */ 79 [50] = DEFINE_SC(0x12), /* <left shift> */ 80 [51] = DEFINE_SC(0x5d), /* \ */ 81 [52] = DEFINE_SC(0x1a), /* z */ 82 [53] = DEFINE_SC(0x22), /* x */ 83 [54] = DEFINE_SC(0x21), /* c */ 84 [55] = DEFINE_SC(0x2a), /* v */ 85 [56] = DEFINE_SC(0x32), /* b */ 86 [57] = DEFINE_SC(0x31), /* n */ 87 [58] = DEFINE_SC(0x3a), /* m */ 88 [59] = DEFINE_SC(0x41), /* < */ 89 [60] = DEFINE_SC(0x49), /* > */ 90 [61] = DEFINE_SC(0x4a), /* / */ 91 [62] = DEFINE_SC(0x59), /* <right shift> */ 92 [63] = DEFINE_SC(0x7c), /* keypad * */ 93 [64] = DEFINE_SC(0x11), /* <left alt> */ 94 [65] = DEFINE_SC(0x29), /* <space> */ 95 96 [67] = DEFINE_SC(0x05), /* <F1> */ 97 [68] = DEFINE_SC(0x06), /* <F2> */ 98 [69] = DEFINE_SC(0x04), /* <F3> */ 99 [70] = DEFINE_SC(0x0c), /* <F4> */ 100 [71] = DEFINE_SC(0x03), /* <F5> */ 101 [72] = DEFINE_SC(0x0b), /* <F6> */ 102 [73] = DEFINE_SC(0x83), /* <F7> */ 103 [74] = DEFINE_SC(0x0a), /* <F8> */ 104 [75] = DEFINE_SC(0x01), /* <F9> */ 105 [76] = DEFINE_SC(0x09), /* <F10> */ 106 107 [79] = DEFINE_SC(0x6c), /* keypad 7 */ 108 [80] = DEFINE_SC(0x75), /* keypad 8 */ 109 [81] = DEFINE_SC(0x7d), /* keypad 9 */ 110 [82] = DEFINE_SC(0x7b), /* keypad - */ 111 [83] = DEFINE_SC(0x6b), /* keypad 4 */ 112 [84] = DEFINE_SC(0x73), /* keypad 5 */ 113 [85] = DEFINE_SC(0x74), /* keypad 6 */ 114 [86] = DEFINE_SC(0x79), /* keypad + */ 115 [87] = DEFINE_SC(0x69), /* keypad 1 */ 116 [88] = DEFINE_SC(0x72), /* keypad 2 */ 117 [89] = DEFINE_SC(0x7a), /* keypad 3 */ 118 [90] = DEFINE_SC(0x70), /* keypad 0 */ 119 [91] = DEFINE_SC(0x71), /* keypad . */ 120 121 [94] = DEFINE_SC(0x61), /* <INT 1> */ 122 [95] = DEFINE_SC(0x78), /* <F11> */ 123 [96] = DEFINE_SC(0x07), /* <F12> */ 124 125 [104] = DEFINE_ESC(0x5a), /* keypad <enter> */ 126 [105] = DEFINE_ESC(0x14), /* <right ctrl> */ 127 [106] = DEFINE_ESC(0x4a), /* keypad / */ 128 [108] = DEFINE_ESC(0x11), /* <right alt> */ 129 [110] = DEFINE_ESC(0x6c), /* <home> */ 130 [111] = DEFINE_ESC(0x75), /* <up> */ 131 [112] = DEFINE_ESC(0x7d), /* <pag up> */ 132 [113] = DEFINE_ESC(0x6b), /* <left> */ 133 [114] = DEFINE_ESC(0x74), /* <right> */ 134 [115] = DEFINE_ESC(0x69), /* <end> */ 135 [116] = DEFINE_ESC(0x72), /* <down> */ 136 [117] = DEFINE_ESC(0x7a), /* <pag down> */ 137 [118] = DEFINE_ESC(0x70), /* <ins> */ 138 [119] = DEFINE_ESC(0x71), /* <delete> */ 139 }; 140 static bool running, done; 141 142 static const struct set2_scancode *to_code(u8 scancode) 143 { 144 return &keymap[scancode]; 145 } 146 147 static void key_press(const struct set2_scancode *sc) 148 { 149 switch (sc->type) { 150 case SCANCODE_ESCAPED: 151 kbd_queue(0xe0); 152 /* fallthrough */ 153 case SCANCODE_NORMAL: 154 kbd_queue(sc->code); 155 break; 156 case SCANCODE_KEY_PAUSE: 157 kbd_queue(0xe1); 158 kbd_queue(0x14); 159 kbd_queue(0x77); 160 kbd_queue(0xe1); 161 kbd_queue(0xf0); 162 kbd_queue(0x14); 163 kbd_queue(0x77); 164 break; 165 case SCANCODE_KEY_PRNTSCRN: 166 kbd_queue(0xe0); 167 kbd_queue(0x12); 168 kbd_queue(0xe0); 169 kbd_queue(0x7c); 170 break; 171 } 172 } 173 174 static void key_release(const struct set2_scancode *sc) 175 { 176 switch (sc->type) { 177 case SCANCODE_ESCAPED: 178 kbd_queue(0xe0); 179 /* fallthrough */ 180 case SCANCODE_NORMAL: 181 kbd_queue(0xf0); 182 kbd_queue(sc->code); 183 break; 184 case SCANCODE_KEY_PAUSE: 185 /* nothing to do */ 186 break; 187 case SCANCODE_KEY_PRNTSCRN: 188 kbd_queue(0xe0); 189 kbd_queue(0xf0); 190 kbd_queue(0x7c); 191 kbd_queue(0xe0); 192 kbd_queue(0xf0); 193 kbd_queue(0x12); 194 break; 195 } 196 } 197 198 static void *sdl__thread(void *p) 199 { 200 Uint32 rmask, gmask, bmask, amask; 201 struct framebuffer *fb = p; 202 SDL_Surface *guest_screen; 203 SDL_Surface *screen; 204 SDL_Event ev; 205 Uint32 flags; 206 207 if (SDL_Init(SDL_INIT_VIDEO) != 0) 208 die("Unable to initialize SDL"); 209 210 rmask = 0x000000ff; 211 gmask = 0x0000ff00; 212 bmask = 0x00ff0000; 213 amask = 0x00000000; 214 215 guest_screen = SDL_CreateRGBSurfaceFrom(fb->mem, fb->width, fb->height, fb->depth, fb->width * fb->depth / 8, rmask, gmask, bmask, amask); 216 if (!guest_screen) 217 die("Unable to create SDL RBG surface"); 218 219 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_DOUBLEBUF; 220 221 SDL_WM_SetCaption("KVM tool", "KVM tool"); 222 223 screen = SDL_SetVideoMode(fb->width, fb->height, fb->depth, flags); 224 if (!screen) 225 die("Unable to set SDL video mode"); 226 227 SDL_EnableKeyRepeat(200, 50); 228 229 while (running) { 230 SDL_BlitSurface(guest_screen, NULL, screen, NULL); 231 SDL_Flip(screen); 232 233 while (SDL_PollEvent(&ev)) { 234 switch (ev.type) { 235 case SDL_KEYDOWN: { 236 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 237 if (sc->type == SCANCODE_UNKNOWN) { 238 pr_warning("key '%d' not found in keymap", ev.key.keysym.scancode); 239 break; 240 } 241 key_press(sc); 242 break; 243 } 244 case SDL_KEYUP: { 245 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 246 if (sc->type == SCANCODE_UNKNOWN) 247 break; 248 key_release(sc); 249 break; 250 } 251 case SDL_QUIT: 252 goto exit; 253 } 254 } 255 256 SDL_Delay(1000 / FRAME_RATE); 257 } 258 259 if (running == false && done == false) { 260 done = true; 261 return NULL; 262 } 263 exit: 264 kvm_cpu__reboot(); 265 266 return NULL; 267 } 268 269 static int sdl__start(struct framebuffer *fb) 270 { 271 pthread_t thread; 272 273 running = true; 274 275 if (pthread_create(&thread, NULL, sdl__thread, fb) != 0) 276 return -1; 277 278 return 0; 279 } 280 281 static int sdl__stop(struct framebuffer *fb) 282 { 283 running = false; 284 while (done == false) 285 sleep(0); 286 287 return 0; 288 } 289 290 static struct fb_target_operations sdl_ops = { 291 .start = sdl__start, 292 .start = sdl__stop, 293 }; 294 295 int sdl__init(struct framebuffer *fb) 296 { 297 return fb__attach(fb, &sdl_ops); 298 } 299 300 int sdl__exit(struct framebuffer *fb) 301 { 302 return sdl__stop(fb); 303 } 304