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[255] = { 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 }; 140 141 static const struct set2_scancode *to_code(u8 scancode) 142 { 143 return &keymap[scancode]; 144 } 145 146 static void key_press(const struct set2_scancode *sc) 147 { 148 switch (sc->type) { 149 case SCANCODE_ESCAPED: 150 kbd_queue(0xe0); 151 /* fallthrough */ 152 case SCANCODE_NORMAL: 153 kbd_queue(sc->code); 154 break; 155 case SCANCODE_KEY_PAUSE: 156 kbd_queue(0xe1); 157 kbd_queue(0x14); 158 kbd_queue(0x77); 159 kbd_queue(0xe1); 160 kbd_queue(0xf0); 161 kbd_queue(0x14); 162 kbd_queue(0x77); 163 break; 164 case SCANCODE_KEY_PRNTSCRN: 165 kbd_queue(0xe0); 166 kbd_queue(0x12); 167 kbd_queue(0xe0); 168 kbd_queue(0x7c); 169 break; 170 } 171 } 172 173 static void key_release(const struct set2_scancode *sc) 174 { 175 switch (sc->type) { 176 case SCANCODE_ESCAPED: 177 kbd_queue(0xe0); 178 /* fallthrough */ 179 case SCANCODE_NORMAL: 180 kbd_queue(0xf0); 181 kbd_queue(sc->code); 182 break; 183 case SCANCODE_KEY_PAUSE: 184 /* nothing to do */ 185 break; 186 case SCANCODE_KEY_PRNTSCRN: 187 kbd_queue(0xe0); 188 kbd_queue(0xf0); 189 kbd_queue(0x7c); 190 kbd_queue(0xe0); 191 kbd_queue(0xf0); 192 kbd_queue(0x12); 193 break; 194 } 195 } 196 197 static void *sdl__thread(void *p) 198 { 199 Uint32 rmask, gmask, bmask, amask; 200 struct framebuffer *fb = p; 201 SDL_Surface *guest_screen; 202 SDL_Surface *screen; 203 SDL_Event ev; 204 Uint32 flags; 205 206 if (SDL_Init(SDL_INIT_VIDEO) != 0) 207 die("Unable to initialize SDL"); 208 209 rmask = 0x000000ff; 210 gmask = 0x0000ff00; 211 bmask = 0x00ff0000; 212 amask = 0x00000000; 213 214 guest_screen = SDL_CreateRGBSurfaceFrom(fb->mem, fb->width, fb->height, fb->depth, fb->width * fb->depth / 8, rmask, gmask, bmask, amask); 215 if (!guest_screen) 216 die("Unable to create SDL RBG surface"); 217 218 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_DOUBLEBUF; 219 220 SDL_WM_SetCaption("KVM tool", "KVM tool"); 221 222 screen = SDL_SetVideoMode(fb->width, fb->height, fb->depth, flags); 223 if (!screen) 224 die("Unable to set SDL video mode"); 225 226 SDL_EnableKeyRepeat(200, 50); 227 228 for (;;) { 229 SDL_BlitSurface(guest_screen, NULL, screen, NULL); 230 SDL_Flip(screen); 231 232 while (SDL_PollEvent(&ev)) { 233 switch (ev.type) { 234 case SDL_KEYDOWN: { 235 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 236 if (sc->type == SCANCODE_UNKNOWN) { 237 pr_warning("key '%d' not found in keymap", ev.key.keysym.scancode); 238 break; 239 } 240 key_press(sc); 241 break; 242 } 243 case SDL_KEYUP: { 244 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 245 if (sc->type == SCANCODE_UNKNOWN) 246 break; 247 key_release(sc); 248 break; 249 } 250 case SDL_QUIT: 251 goto exit; 252 } 253 } 254 255 SDL_Delay(1000 / FRAME_RATE); 256 } 257 exit: 258 kvm_cpu__reboot(); 259 260 return NULL; 261 } 262 263 static int sdl__start(struct framebuffer *fb) 264 { 265 pthread_t thread; 266 267 if (pthread_create(&thread, NULL, sdl__thread, fb) != 0) 268 return -1; 269 270 return 0; 271 } 272 273 static struct fb_target_operations sdl_ops = { 274 .start = sdl__start, 275 }; 276 277 void sdl__init(struct framebuffer *fb) 278 { 279 fb__attach(fb, &sdl_ops); 280 } 281