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 #include "kvm/vesa.h" 9 10 #include <SDL/SDL.h> 11 #include <pthread.h> 12 #include <signal.h> 13 #include <linux/err.h> 14 15 #define FRAME_RATE 25 16 17 #define SCANCODE_UNKNOWN 0 18 #define SCANCODE_NORMAL 1 19 #define SCANCODE_ESCAPED 2 20 #define SCANCODE_KEY_PAUSE 3 21 #define SCANCODE_KEY_PRNTSCRN 4 22 23 struct set2_scancode { 24 u8 code; 25 u8 type; 26 }; 27 28 #define DEFINE_SC(_code) {\ 29 .code = _code,\ 30 .type = SCANCODE_NORMAL,\ 31 } 32 33 /* escaped scancodes */ 34 #define DEFINE_ESC(_code) {\ 35 .code = _code,\ 36 .type = SCANCODE_ESCAPED,\ 37 } 38 39 static const struct set2_scancode const keymap[256] = { 40 [9] = DEFINE_SC(0x76), /* <esc> */ 41 [10] = DEFINE_SC(0x16), /* 1 */ 42 [11] = DEFINE_SC(0x1e), /* 2 */ 43 [12] = DEFINE_SC(0x26), /* 3 */ 44 [13] = DEFINE_SC(0x25), /* 4 */ 45 [14] = DEFINE_SC(0x2e), /* 5 */ 46 [15] = DEFINE_SC(0x36), /* 6 */ 47 [16] = DEFINE_SC(0x3d), /* 7 */ 48 [17] = DEFINE_SC(0x3e), /* 8 */ 49 [18] = DEFINE_SC(0x46), /* 9 */ 50 [19] = DEFINE_SC(0x45), /* 9 */ 51 [20] = DEFINE_SC(0x4e), /* - */ 52 [21] = DEFINE_SC(0x55), /* + */ 53 [22] = DEFINE_SC(0x66), /* <backspace> */ 54 [23] = DEFINE_SC(0x0d), /* <tab> */ 55 [24] = DEFINE_SC(0x15), /* q */ 56 [25] = DEFINE_SC(0x1d), /* w */ 57 [26] = DEFINE_SC(0x24), /* e */ 58 [27] = DEFINE_SC(0x2d), /* r */ 59 [28] = DEFINE_SC(0x2c), /* t */ 60 [29] = DEFINE_SC(0x35), /* y */ 61 [30] = DEFINE_SC(0x3c), /* u */ 62 [31] = DEFINE_SC(0x43), /* i */ 63 [32] = DEFINE_SC(0x44), /* o */ 64 [33] = DEFINE_SC(0x4d), /* p */ 65 [34] = DEFINE_SC(0x54), /* [ */ 66 [35] = DEFINE_SC(0x5b), /* ] */ 67 [36] = DEFINE_SC(0x5a), /* <enter> */ 68 [37] = DEFINE_SC(0x14), /* <left ctrl> */ 69 [38] = DEFINE_SC(0x1c), /* a */ 70 [39] = DEFINE_SC(0x1b), /* s */ 71 [40] = DEFINE_SC(0x23), /* d */ 72 [41] = DEFINE_SC(0x2b), /* f */ 73 [42] = DEFINE_SC(0x34), /* g */ 74 [43] = DEFINE_SC(0x33), /* h */ 75 [44] = DEFINE_SC(0x3b), /* j */ 76 [45] = DEFINE_SC(0x42), /* k */ 77 [46] = DEFINE_SC(0x4b), /* l */ 78 [47] = DEFINE_SC(0x4c), /* ; */ 79 [48] = DEFINE_SC(0x52), /* ' */ 80 [49] = DEFINE_SC(0x0e), /* ` */ 81 [50] = DEFINE_SC(0x12), /* <left shift> */ 82 [51] = DEFINE_SC(0x5d), /* \ */ 83 [52] = DEFINE_SC(0x1a), /* z */ 84 [53] = DEFINE_SC(0x22), /* x */ 85 [54] = DEFINE_SC(0x21), /* c */ 86 [55] = DEFINE_SC(0x2a), /* v */ 87 [56] = DEFINE_SC(0x32), /* b */ 88 [57] = DEFINE_SC(0x31), /* n */ 89 [58] = DEFINE_SC(0x3a), /* m */ 90 [59] = DEFINE_SC(0x41), /* < */ 91 [60] = DEFINE_SC(0x49), /* > */ 92 [61] = DEFINE_SC(0x4a), /* / */ 93 [62] = DEFINE_SC(0x59), /* <right shift> */ 94 [63] = DEFINE_SC(0x7c), /* keypad * */ 95 [64] = DEFINE_SC(0x11), /* <left alt> */ 96 [65] = DEFINE_SC(0x29), /* <space> */ 97 98 [67] = DEFINE_SC(0x05), /* <F1> */ 99 [68] = DEFINE_SC(0x06), /* <F2> */ 100 [69] = DEFINE_SC(0x04), /* <F3> */ 101 [70] = DEFINE_SC(0x0c), /* <F4> */ 102 [71] = DEFINE_SC(0x03), /* <F5> */ 103 [72] = DEFINE_SC(0x0b), /* <F6> */ 104 [73] = DEFINE_SC(0x83), /* <F7> */ 105 [74] = DEFINE_SC(0x0a), /* <F8> */ 106 [75] = DEFINE_SC(0x01), /* <F9> */ 107 [76] = DEFINE_SC(0x09), /* <F10> */ 108 109 [79] = DEFINE_SC(0x6c), /* keypad 7 */ 110 [80] = DEFINE_SC(0x75), /* keypad 8 */ 111 [81] = DEFINE_SC(0x7d), /* keypad 9 */ 112 [82] = DEFINE_SC(0x7b), /* keypad - */ 113 [83] = DEFINE_SC(0x6b), /* keypad 4 */ 114 [84] = DEFINE_SC(0x73), /* keypad 5 */ 115 [85] = DEFINE_SC(0x74), /* keypad 6 */ 116 [86] = DEFINE_SC(0x79), /* keypad + */ 117 [87] = DEFINE_SC(0x69), /* keypad 1 */ 118 [88] = DEFINE_SC(0x72), /* keypad 2 */ 119 [89] = DEFINE_SC(0x7a), /* keypad 3 */ 120 [90] = DEFINE_SC(0x70), /* keypad 0 */ 121 [91] = DEFINE_SC(0x71), /* keypad . */ 122 123 [94] = DEFINE_SC(0x61), /* <INT 1> */ 124 [95] = DEFINE_SC(0x78), /* <F11> */ 125 [96] = DEFINE_SC(0x07), /* <F12> */ 126 127 [104] = DEFINE_ESC(0x5a), /* keypad <enter> */ 128 [105] = DEFINE_ESC(0x14), /* <right ctrl> */ 129 [106] = DEFINE_ESC(0x4a), /* keypad / */ 130 [108] = DEFINE_ESC(0x11), /* <right alt> */ 131 [110] = DEFINE_ESC(0x6c), /* <home> */ 132 [111] = DEFINE_ESC(0x75), /* <up> */ 133 [112] = DEFINE_ESC(0x7d), /* <pag up> */ 134 [113] = DEFINE_ESC(0x6b), /* <left> */ 135 [114] = DEFINE_ESC(0x74), /* <right> */ 136 [115] = DEFINE_ESC(0x69), /* <end> */ 137 [116] = DEFINE_ESC(0x72), /* <down> */ 138 [117] = DEFINE_ESC(0x7a), /* <pag down> */ 139 [118] = DEFINE_ESC(0x70), /* <ins> */ 140 [119] = DEFINE_ESC(0x71), /* <delete> */ 141 }; 142 static bool running, done; 143 144 static const struct set2_scancode *to_code(u8 scancode) 145 { 146 return &keymap[scancode]; 147 } 148 149 static void key_press(const struct set2_scancode *sc) 150 { 151 switch (sc->type) { 152 case SCANCODE_ESCAPED: 153 kbd_queue(0xe0); 154 /* fallthrough */ 155 case SCANCODE_NORMAL: 156 kbd_queue(sc->code); 157 break; 158 case SCANCODE_KEY_PAUSE: 159 kbd_queue(0xe1); 160 kbd_queue(0x14); 161 kbd_queue(0x77); 162 kbd_queue(0xe1); 163 kbd_queue(0xf0); 164 kbd_queue(0x14); 165 kbd_queue(0x77); 166 break; 167 case SCANCODE_KEY_PRNTSCRN: 168 kbd_queue(0xe0); 169 kbd_queue(0x12); 170 kbd_queue(0xe0); 171 kbd_queue(0x7c); 172 break; 173 } 174 } 175 176 static void key_release(const struct set2_scancode *sc) 177 { 178 switch (sc->type) { 179 case SCANCODE_ESCAPED: 180 kbd_queue(0xe0); 181 /* fallthrough */ 182 case SCANCODE_NORMAL: 183 kbd_queue(0xf0); 184 kbd_queue(sc->code); 185 break; 186 case SCANCODE_KEY_PAUSE: 187 /* nothing to do */ 188 break; 189 case SCANCODE_KEY_PRNTSCRN: 190 kbd_queue(0xe0); 191 kbd_queue(0xf0); 192 kbd_queue(0x7c); 193 kbd_queue(0xe0); 194 kbd_queue(0xf0); 195 kbd_queue(0x12); 196 break; 197 } 198 } 199 200 static void *sdl__thread(void *p) 201 { 202 Uint32 rmask, gmask, bmask, amask; 203 struct framebuffer *fb = p; 204 SDL_Surface *guest_screen; 205 SDL_Surface *screen; 206 SDL_Event ev; 207 Uint32 flags; 208 209 if (SDL_Init(SDL_INIT_VIDEO) != 0) 210 die("Unable to initialize SDL"); 211 212 rmask = 0x000000ff; 213 gmask = 0x0000ff00; 214 bmask = 0x00ff0000; 215 amask = 0x00000000; 216 217 guest_screen = SDL_CreateRGBSurfaceFrom(fb->mem, fb->width, fb->height, fb->depth, fb->width * fb->depth / 8, rmask, gmask, bmask, amask); 218 if (!guest_screen) 219 die("Unable to create SDL RBG surface"); 220 221 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_DOUBLEBUF; 222 223 SDL_WM_SetCaption("KVM tool", "KVM tool"); 224 225 screen = SDL_SetVideoMode(fb->width, fb->height, fb->depth, flags); 226 if (!screen) 227 die("Unable to set SDL video mode"); 228 229 SDL_EnableKeyRepeat(200, 50); 230 231 while (running) { 232 SDL_BlitSurface(guest_screen, NULL, screen, NULL); 233 SDL_Flip(screen); 234 235 while (SDL_PollEvent(&ev)) { 236 switch (ev.type) { 237 case SDL_KEYDOWN: { 238 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 239 if (sc->type == SCANCODE_UNKNOWN) { 240 pr_warning("key '%d' not found in keymap", ev.key.keysym.scancode); 241 break; 242 } 243 key_press(sc); 244 break; 245 } 246 case SDL_KEYUP: { 247 const struct set2_scancode *sc = to_code(ev.key.keysym.scancode); 248 if (sc->type == SCANCODE_UNKNOWN) 249 break; 250 key_release(sc); 251 break; 252 } 253 case SDL_QUIT: 254 goto exit; 255 } 256 } 257 258 SDL_Delay(1000 / FRAME_RATE); 259 } 260 261 if (running == false && done == false) { 262 done = true; 263 return NULL; 264 } 265 exit: 266 kvm_cpu__reboot(fb->kvm); 267 268 return NULL; 269 } 270 271 static int sdl__start(struct framebuffer *fb) 272 { 273 pthread_t thread; 274 275 running = true; 276 277 if (pthread_create(&thread, NULL, sdl__thread, fb) != 0) 278 return -1; 279 280 return 0; 281 } 282 283 static int sdl__stop(struct framebuffer *fb) 284 { 285 running = false; 286 while (done == false) 287 sleep(0); 288 289 return 0; 290 } 291 292 static struct fb_target_operations sdl_ops = { 293 .start = sdl__start, 294 .stop = sdl__stop, 295 }; 296 297 int sdl__init(struct kvm *kvm) 298 { 299 struct framebuffer *fb; 300 301 if (!kvm->cfg.sdl) 302 return 0; 303 304 fb = vesa__init(kvm); 305 if (IS_ERR(fb)) { 306 pr_err("vesa__init() failed with error %ld\n", PTR_ERR(fb)); 307 return PTR_ERR(fb); 308 } 309 310 return fb__attach(fb, &sdl_ops); 311 } 312 313 int sdl__exit(struct kvm *kvm) 314 { 315 return sdl__stop(NULL); 316 } 317