xref: /kvmtool/ui/sdl.c (revision a022099de1b2b58dfd9a7d0c1e1b94f2f39a661e)
13f838fecSPekka Enberg #include "kvm/sdl.h"
23f838fecSPekka Enberg 
33f838fecSPekka Enberg #include "kvm/framebuffer.h"
4175f8e86SPekka Enberg #include "kvm/i8042.h"
53f838fecSPekka Enberg #include "kvm/util.h"
61c48f5f8SPekka Enberg #include "kvm/kvm.h"
73f838fecSPekka Enberg 
83f838fecSPekka Enberg #include <SDL/SDL.h>
93f838fecSPekka Enberg #include <pthread.h>
101c48f5f8SPekka Enberg #include <signal.h>
113f838fecSPekka Enberg 
123f838fecSPekka Enberg #define FRAME_RATE		25
133f838fecSPekka Enberg 
14571cf4baSAlessandro Guido #define SCANCODE_UNKNOWN      0
15571cf4baSAlessandro Guido #define SCANCODE_NORMAL       1
16571cf4baSAlessandro Guido #define SCANCODE_ESCAPED      2
17571cf4baSAlessandro Guido #define SCANCODE_KEY_PAUSE    3
18571cf4baSAlessandro Guido #define SCANCODE_KEY_PRNTSCRN 4
19175f8e86SPekka Enberg 
20571cf4baSAlessandro Guido struct set2_scancode {
21571cf4baSAlessandro Guido 	u8 code;
22571cf4baSAlessandro Guido 	u8 type;
23175f8e86SPekka Enberg };
24175f8e86SPekka Enberg 
25571cf4baSAlessandro Guido #define DEFINE_SC(_code) {\
26571cf4baSAlessandro Guido 	.code = _code,\
27571cf4baSAlessandro Guido 	.type = SCANCODE_NORMAL,\
28571cf4baSAlessandro Guido }
29571cf4baSAlessandro Guido 
30571cf4baSAlessandro Guido /* escaped scancodes */
31571cf4baSAlessandro Guido #define DEFINE_ESC(_code) {\
32571cf4baSAlessandro Guido 	.code = _code,\
33571cf4baSAlessandro Guido 	.type = SCANCODE_ESCAPED,\
34571cf4baSAlessandro Guido }
35571cf4baSAlessandro Guido 
36571cf4baSAlessandro Guido static const struct set2_scancode const keymap[255] = {
37571cf4baSAlessandro Guido 	[9]	= DEFINE_SC(0x76),	/* <esc> */
38571cf4baSAlessandro Guido 	[10]	= DEFINE_SC(0x16),	/* 1 */
39571cf4baSAlessandro Guido 	[11]	= DEFINE_SC(0x1e),	/* 2 */
40571cf4baSAlessandro Guido 	[12]	= DEFINE_SC(0x26),	/* 3 */
41571cf4baSAlessandro Guido 	[13]	= DEFINE_SC(0x25),	/* 4 */
42*a022099dSAlessandro Guido 	[14]	= DEFINE_SC(0x2e),	/* 5 */
43571cf4baSAlessandro Guido 	[15]	= DEFINE_SC(0x36),	/* 6 */
44571cf4baSAlessandro Guido 	[16]	= DEFINE_SC(0x3d),	/* 7 */
45571cf4baSAlessandro Guido 	[17]	= DEFINE_SC(0x3e),	/* 8 */
46571cf4baSAlessandro Guido 	[18]	= DEFINE_SC(0x46),	/* 9 */
47571cf4baSAlessandro Guido 	[19]	= DEFINE_SC(0x45),	/* 9 */
48571cf4baSAlessandro Guido 	[20]	= DEFINE_SC(0x4e),	/* - */
49571cf4baSAlessandro Guido 	[21]	= DEFINE_SC(0x55),	/* + */
50571cf4baSAlessandro Guido 	[22]	= DEFINE_SC(0x66),	/* <backspace> */
51571cf4baSAlessandro Guido 	[23]	= DEFINE_SC(0x0d),	/* <tab> */
52571cf4baSAlessandro Guido 	[24]	= DEFINE_SC(0x15),	/* q */
53571cf4baSAlessandro Guido 	[25]	= DEFINE_SC(0x1d),	/* w */
54571cf4baSAlessandro Guido 	[26]	= DEFINE_SC(0x24),	/* e */
55571cf4baSAlessandro Guido 	[27]	= DEFINE_SC(0x2d),	/* r */
56571cf4baSAlessandro Guido 	[28]	= DEFINE_SC(0x2c),	/* t */
57571cf4baSAlessandro Guido 	[29]	= DEFINE_SC(0x35),	/* y */
58571cf4baSAlessandro Guido 	[30]	= DEFINE_SC(0x3c),	/* u */
59571cf4baSAlessandro Guido 	[31]	= DEFINE_SC(0x43),	/* i */
60571cf4baSAlessandro Guido 	[32]	= DEFINE_SC(0x44),	/* o */
61571cf4baSAlessandro Guido 	[33]	= DEFINE_SC(0x4d),	/* p */
62571cf4baSAlessandro Guido 	[34]	= DEFINE_SC(0x54),	/* [ */
63571cf4baSAlessandro Guido 	[35]	= DEFINE_SC(0x5b),	/* ] */
64571cf4baSAlessandro Guido 	[36]	= DEFINE_SC(0x5a),	/* <enter> */
65571cf4baSAlessandro Guido 	[37]	= DEFINE_SC(0x14),	/* <left ctrl> */
66571cf4baSAlessandro Guido 	[38]	= DEFINE_SC(0x1c),	/* a */
67571cf4baSAlessandro Guido 	[39]	= DEFINE_SC(0x1b),	/* s */
68571cf4baSAlessandro Guido 	[40]	= DEFINE_SC(0x23),	/* d */
69571cf4baSAlessandro Guido 	[41]	= DEFINE_SC(0x2b),	/* f */
70571cf4baSAlessandro Guido 	[42]	= DEFINE_SC(0x34),	/* g */
71571cf4baSAlessandro Guido 	[43]	= DEFINE_SC(0x33),	/* h */
72571cf4baSAlessandro Guido 	[44]	= DEFINE_SC(0x3b),	/* j */
73571cf4baSAlessandro Guido 	[45]	= DEFINE_SC(0x42),	/* k */
74571cf4baSAlessandro Guido 	[46]	= DEFINE_SC(0x4b),	/* l */
75571cf4baSAlessandro Guido 	[47]	= DEFINE_SC(0x4c),	/* ; */
76571cf4baSAlessandro Guido 	[48]	= DEFINE_SC(0x52),	/* ' */
77571cf4baSAlessandro Guido 	[49]	= DEFINE_SC(0x0e),	/* ` */
78571cf4baSAlessandro Guido 	[50]	= DEFINE_SC(0x12),	/* <left shift> */
79571cf4baSAlessandro Guido 	[51]	= DEFINE_SC(0x5d),	/* \ */
80571cf4baSAlessandro Guido 	[52]	= DEFINE_SC(0x1a),	/* z */
81571cf4baSAlessandro Guido 	[53]	= DEFINE_SC(0x22),	/* x */
82571cf4baSAlessandro Guido 	[54]	= DEFINE_SC(0x21),	/* c */
83571cf4baSAlessandro Guido 	[55]	= DEFINE_SC(0x2a),	/* v */
84571cf4baSAlessandro Guido 	[56]	= DEFINE_SC(0x32),	/* b */
85571cf4baSAlessandro Guido 	[57]	= DEFINE_SC(0x31),	/* n */
86571cf4baSAlessandro Guido 	[58]	= DEFINE_SC(0x3a),	/* m */
87571cf4baSAlessandro Guido 	[59]	= DEFINE_SC(0x41),	/* < */
88571cf4baSAlessandro Guido 	[60]	= DEFINE_SC(0x49),	/* > */
89571cf4baSAlessandro Guido 	[61]	= DEFINE_SC(0x4a),	/* / */
90571cf4baSAlessandro Guido 	[62]	= DEFINE_SC(0x59),	/* <right shift> */
91571cf4baSAlessandro Guido 	[63]	= DEFINE_SC(0x7c),	/* keypad * */
92571cf4baSAlessandro Guido 	[64]	= DEFINE_SC(0x11),	/* <left alt> */
93571cf4baSAlessandro Guido 	[65]	= DEFINE_SC(0x29),	/* <space> */
94571cf4baSAlessandro Guido 
95571cf4baSAlessandro Guido 	[67]	= DEFINE_SC(0x05),	/* <F1> */
96571cf4baSAlessandro Guido 	[68]	= DEFINE_SC(0x06),	/* <F2> */
97571cf4baSAlessandro Guido 	[69]	= DEFINE_SC(0x04),	/* <F3> */
98571cf4baSAlessandro Guido 	[70]	= DEFINE_SC(0x0c),	/* <F4> */
99571cf4baSAlessandro Guido 	[71]	= DEFINE_SC(0x03),	/* <F5> */
100571cf4baSAlessandro Guido 	[72]	= DEFINE_SC(0x0b),	/* <F6> */
101571cf4baSAlessandro Guido 	[73]	= DEFINE_SC(0x83),	/* <F7> */
102571cf4baSAlessandro Guido 	[74]	= DEFINE_SC(0x0a),	/* <F8> */
103571cf4baSAlessandro Guido 	[75]	= DEFINE_SC(0x01),	/* <F9> */
104571cf4baSAlessandro Guido 	[76]	= DEFINE_SC(0x09),	/* <F10> */
105571cf4baSAlessandro Guido 
106571cf4baSAlessandro Guido 	[79]	= DEFINE_SC(0x6c),	/* keypad 7 */
107571cf4baSAlessandro Guido 	[80]	= DEFINE_SC(0x75),	/* keypad 8 */
108571cf4baSAlessandro Guido 	[81]	= DEFINE_SC(0x7d),	/* keypad 9 */
109571cf4baSAlessandro Guido 	[82]	= DEFINE_SC(0x7b),	/* keypad - */
110571cf4baSAlessandro Guido 	[83]	= DEFINE_SC(0x6b),	/* keypad 4 */
111571cf4baSAlessandro Guido 	[84]	= DEFINE_SC(0x73),	/* keypad 5 */
112571cf4baSAlessandro Guido 	[85]	= DEFINE_SC(0x74),	/* keypad 6 */
113571cf4baSAlessandro Guido 	[86]	= DEFINE_SC(0x79),	/* keypad + */
114571cf4baSAlessandro Guido 	[87]	= DEFINE_SC(0x69),	/* keypad 1 */
115571cf4baSAlessandro Guido 	[88]	= DEFINE_SC(0x72),	/* keypad 2 */
116571cf4baSAlessandro Guido 	[89]	= DEFINE_SC(0x7a),	/* keypad 3 */
117571cf4baSAlessandro Guido 	[90]	= DEFINE_SC(0x70),	/* keypad 0 */
118571cf4baSAlessandro Guido 	[91]	= DEFINE_SC(0x71),	/* keypad . */
119571cf4baSAlessandro Guido 
120571cf4baSAlessandro Guido 	[94]	= DEFINE_SC(0x61),	/* <INT 1> */
121571cf4baSAlessandro Guido 	[95]	= DEFINE_SC(0x78),	/* <F11> */
122571cf4baSAlessandro Guido 	[96]	= DEFINE_SC(0x07),	/* <F12> */
123571cf4baSAlessandro Guido 
124571cf4baSAlessandro Guido 	[104]	= DEFINE_ESC(0x5a),	/* keypad <enter> */
125571cf4baSAlessandro Guido 	[105]	= DEFINE_ESC(0x14),	/* <right ctrl> */
126571cf4baSAlessandro Guido 	[106]	= DEFINE_ESC(0x4a),	/* keypad / */
127571cf4baSAlessandro Guido 	[108]	= DEFINE_ESC(0x11),	/* <right alt> */
128571cf4baSAlessandro Guido 	[110]	= DEFINE_ESC(0x6c),	/* <home> */
129571cf4baSAlessandro Guido 	[111]	= DEFINE_ESC(0x75),	/* <up> */
130571cf4baSAlessandro Guido 	[112]	= DEFINE_ESC(0x7d),	/* <pag up> */
131571cf4baSAlessandro Guido 	[113]	= DEFINE_ESC(0x6b),	/* <left> */
132571cf4baSAlessandro Guido 	[114]	= DEFINE_ESC(0x74),	/* <right> */
133571cf4baSAlessandro Guido 	[115]	= DEFINE_ESC(0x69),	/* <end> */
134571cf4baSAlessandro Guido 	[116]	= DEFINE_ESC(0x72),	/* <down> */
135571cf4baSAlessandro Guido 	[117]	= DEFINE_ESC(0x7a),	/* <pag down> */
136571cf4baSAlessandro Guido 	[118]	= DEFINE_ESC(0x70),	/* <ins> */
137571cf4baSAlessandro Guido 	[119]	= DEFINE_ESC(0x71),	/* <delete> */
138571cf4baSAlessandro Guido };
139571cf4baSAlessandro Guido 
140571cf4baSAlessandro Guido static const struct set2_scancode *to_code(u8 scancode)
141175f8e86SPekka Enberg {
142571cf4baSAlessandro Guido 	return &keymap[scancode];
143571cf4baSAlessandro Guido }
144571cf4baSAlessandro Guido 
145571cf4baSAlessandro Guido static void key_press(const struct set2_scancode *sc)
146571cf4baSAlessandro Guido {
147571cf4baSAlessandro Guido 	switch (sc->type) {
148571cf4baSAlessandro Guido 	case SCANCODE_ESCAPED:
149571cf4baSAlessandro Guido 		kbd_queue(0xe0);
150571cf4baSAlessandro Guido 		/* fallthrough */
151571cf4baSAlessandro Guido 	case SCANCODE_NORMAL:
152571cf4baSAlessandro Guido 		kbd_queue(sc->code);
153571cf4baSAlessandro Guido 		break;
154571cf4baSAlessandro Guido 	case SCANCODE_KEY_PAUSE:
155571cf4baSAlessandro Guido 		kbd_queue(0xe1);
156571cf4baSAlessandro Guido 		kbd_queue(0x14);
157571cf4baSAlessandro Guido 		kbd_queue(0x77);
158571cf4baSAlessandro Guido 		kbd_queue(0xe1);
159571cf4baSAlessandro Guido 		kbd_queue(0xf0);
160571cf4baSAlessandro Guido 		kbd_queue(0x14);
161571cf4baSAlessandro Guido 		kbd_queue(0x77);
162571cf4baSAlessandro Guido 		break;
163571cf4baSAlessandro Guido 	case SCANCODE_KEY_PRNTSCRN:
164571cf4baSAlessandro Guido 		kbd_queue(0xe0);
165571cf4baSAlessandro Guido 		kbd_queue(0x12);
166571cf4baSAlessandro Guido 		kbd_queue(0xe0);
167571cf4baSAlessandro Guido 		kbd_queue(0x7c);
168571cf4baSAlessandro Guido 		break;
169571cf4baSAlessandro Guido 	}
170571cf4baSAlessandro Guido }
171571cf4baSAlessandro Guido 
172571cf4baSAlessandro Guido static void key_release(const struct set2_scancode *sc)
173571cf4baSAlessandro Guido {
174571cf4baSAlessandro Guido 	switch (sc->type) {
175571cf4baSAlessandro Guido 	case SCANCODE_ESCAPED:
176571cf4baSAlessandro Guido 		kbd_queue(0xe0);
177571cf4baSAlessandro Guido 		/* fallthrough */
178571cf4baSAlessandro Guido 	case SCANCODE_NORMAL:
179571cf4baSAlessandro Guido 		kbd_queue(0xf0);
180571cf4baSAlessandro Guido 		kbd_queue(sc->code);
181571cf4baSAlessandro Guido 		break;
182571cf4baSAlessandro Guido 	case SCANCODE_KEY_PAUSE:
183571cf4baSAlessandro Guido 		/* nothing to do */
184571cf4baSAlessandro Guido 		break;
185571cf4baSAlessandro Guido 	case SCANCODE_KEY_PRNTSCRN:
186571cf4baSAlessandro Guido 		kbd_queue(0xe0);
187571cf4baSAlessandro Guido 		kbd_queue(0xf0);
188571cf4baSAlessandro Guido 		kbd_queue(0x7c);
189571cf4baSAlessandro Guido 		kbd_queue(0xe0);
190571cf4baSAlessandro Guido 		kbd_queue(0xf0);
191571cf4baSAlessandro Guido 		kbd_queue(0x12);
192571cf4baSAlessandro Guido 		break;
193571cf4baSAlessandro Guido 	}
194175f8e86SPekka Enberg }
195175f8e86SPekka Enberg 
1963f838fecSPekka Enberg static void *sdl__thread(void *p)
1973f838fecSPekka Enberg {
1983f838fecSPekka Enberg 	Uint32 rmask, gmask, bmask, amask;
1993f838fecSPekka Enberg 	struct framebuffer *fb = p;
2003f838fecSPekka Enberg 	SDL_Surface *guest_screen;
2013f838fecSPekka Enberg 	SDL_Surface *screen;
2023f838fecSPekka Enberg 	SDL_Event ev;
2033f838fecSPekka Enberg 	Uint32 flags;
2043f838fecSPekka Enberg 
2053f838fecSPekka Enberg 	if (SDL_Init(SDL_INIT_VIDEO) != 0)
2063f838fecSPekka Enberg 		die("Unable to initialize SDL");
2073f838fecSPekka Enberg 
2083f838fecSPekka Enberg 	rmask = 0x000000ff;
2093f838fecSPekka Enberg 	gmask = 0x0000ff00;
2103f838fecSPekka Enberg 	bmask = 0x00ff0000;
2113f838fecSPekka Enberg 	amask = 0x00000000;
2123f838fecSPekka Enberg 
2133f838fecSPekka Enberg 	guest_screen = SDL_CreateRGBSurfaceFrom(fb->mem, fb->width, fb->height, fb->depth, fb->width * fb->depth / 8, rmask, gmask, bmask, amask);
2143f838fecSPekka Enberg 	if (!guest_screen)
2153f838fecSPekka Enberg 		die("Unable to create SDL RBG surface");
2163f838fecSPekka Enberg 
217268d0f1bSSasha Levin 	flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_DOUBLEBUF;
2183f838fecSPekka Enberg 
2192a77516bSPekka Enberg 	SDL_WM_SetCaption("KVM tool", "KVM tool");
2202a77516bSPekka Enberg 
2213f838fecSPekka Enberg 	screen = SDL_SetVideoMode(fb->width, fb->height, fb->depth, flags);
2223f838fecSPekka Enberg 	if (!screen)
2233f838fecSPekka Enberg 		die("Unable to set SDL video mode");
2243f838fecSPekka Enberg 
22568770058SLiming Wang 	SDL_EnableKeyRepeat(200, 50);
22668770058SLiming Wang 
2273f838fecSPekka Enberg 	for (;;) {
2283f838fecSPekka Enberg 		SDL_BlitSurface(guest_screen, NULL, screen, NULL);
229268d0f1bSSasha Levin 		SDL_Flip(screen);
230175f8e86SPekka Enberg 
2313f838fecSPekka Enberg 		while (SDL_PollEvent(&ev)) {
2323f838fecSPekka Enberg 			switch (ev.type) {
233175f8e86SPekka Enberg 			case SDL_KEYDOWN: {
234571cf4baSAlessandro Guido 				const struct set2_scancode *sc = to_code(ev.key.keysym.scancode);
235571cf4baSAlessandro Guido 				if (sc->type == SCANCODE_UNKNOWN) {
236175f8e86SPekka Enberg 					pr_warning("key '%d' not found in keymap", ev.key.keysym.scancode);
237175f8e86SPekka Enberg 					break;
238175f8e86SPekka Enberg 				}
239571cf4baSAlessandro Guido 				key_press(sc);
240571cf4baSAlessandro Guido 				break;
241175f8e86SPekka Enberg 			}
242571cf4baSAlessandro Guido 			case SDL_KEYUP: {
243571cf4baSAlessandro Guido 				const struct set2_scancode *sc = to_code(ev.key.keysym.scancode);
244571cf4baSAlessandro Guido 				if (sc->type == SCANCODE_UNKNOWN)
245571cf4baSAlessandro Guido 					break;
246571cf4baSAlessandro Guido 				key_release(sc);
247175f8e86SPekka Enberg 				break;
248175f8e86SPekka Enberg 			}
2493f838fecSPekka Enberg 			case SDL_QUIT:
2503f838fecSPekka Enberg 				goto exit;
2513f838fecSPekka Enberg 			}
2523f838fecSPekka Enberg 		}
253175f8e86SPekka Enberg 
2543f838fecSPekka Enberg 		SDL_Delay(1000 / FRAME_RATE);
2553f838fecSPekka Enberg 	}
2563f838fecSPekka Enberg exit:
2571c48f5f8SPekka Enberg 	kill(0, SIGKVMSTOP);
2581c48f5f8SPekka Enberg 
2593f838fecSPekka Enberg 	return NULL;
2603f838fecSPekka Enberg }
2613f838fecSPekka Enberg 
2623f838fecSPekka Enberg static int sdl__start(struct framebuffer *fb)
2633f838fecSPekka Enberg {
2643f838fecSPekka Enberg 	pthread_t thread;
2653f838fecSPekka Enberg 
2663f838fecSPekka Enberg 	if (pthread_create(&thread, NULL, sdl__thread, fb) != 0)
2673f838fecSPekka Enberg 		return -1;
2683f838fecSPekka Enberg 
2693f838fecSPekka Enberg 	return 0;
2703f838fecSPekka Enberg }
2713f838fecSPekka Enberg 
2723f838fecSPekka Enberg static struct fb_target_operations sdl_ops = {
2733f838fecSPekka Enberg 	.start			= sdl__start,
2743f838fecSPekka Enberg };
2753f838fecSPekka Enberg 
2763f838fecSPekka Enberg void sdl__init(struct framebuffer *fb)
2773f838fecSPekka Enberg {
2783f838fecSPekka Enberg 	fb__attach(fb, &sdl_ops);
2793f838fecSPekka Enberg }
280