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kvmtool/ui/sdl.c
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Andre Przywara 369c27e683 ui: remove pointless double const in keymap declarations 
clang does not like two const specifiers in one declaration, so
remove one to let clang compile kvmtool.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-07-20 18:25:48 +01:00

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#include "kvm/sdl.h"
#include "kvm/framebuffer.h"
#include "kvm/i8042.h"
#include "kvm/util.h"
#include "kvm/kvm.h"
#include "kvm/kvm-cpu.h"
#include "kvm/vesa.h"
#include <SDL/SDL.h>
#include <pthread.h>
#include <signal.h>
#include <linux/err.h>
#define FRAME_RATE 25
#define SCANCODE_UNKNOWN 0
#define SCANCODE_NORMAL 1
#define SCANCODE_ESCAPED 2
#define SCANCODE_KEY_PAUSE 3
#define SCANCODE_KEY_PRNTSCRN 4
struct set2_scancode {
u8 code;
u8 type;
};
#define DEFINE_SC(_code) {\
.code = _code,\
.type = SCANCODE_NORMAL,\
}
/* escaped scancodes */
#define DEFINE_ESC(_code) {\
.code = _code,\
.type = SCANCODE_ESCAPED,\
}
static const struct set2_scancode keymap[256] = {
[9] = DEFINE_SC(0x76), /* <esc> */
[10] = DEFINE_SC(0x16), /* 1 */
[11] = DEFINE_SC(0x1e), /* 2 */
[12] = DEFINE_SC(0x26), /* 3 */
[13] = DEFINE_SC(0x25), /* 4 */
[14] = DEFINE_SC(0x2e), /* 5 */
[15] = DEFINE_SC(0x36), /* 6 */
[16] = DEFINE_SC(0x3d), /* 7 */
[17] = DEFINE_SC(0x3e), /* 8 */
[18] = DEFINE_SC(0x46), /* 9 */
[19] = DEFINE_SC(0x45), /* 9 */
[20] = DEFINE_SC(0x4e), /* - */
[21] = DEFINE_SC(0x55), /* + */
[22] = DEFINE_SC(0x66), /* <backspace> */
[23] = DEFINE_SC(0x0d), /* <tab> */
[24] = DEFINE_SC(0x15), /* q */
[25] = DEFINE_SC(0x1d), /* w */
[26] = DEFINE_SC(0x24), /* e */
[27] = DEFINE_SC(0x2d), /* r */
[28] = DEFINE_SC(0x2c), /* t */
[29] = DEFINE_SC(0x35), /* y */
[30] = DEFINE_SC(0x3c), /* u */
[31] = DEFINE_SC(0x43), /* i */
[32] = DEFINE_SC(0x44), /* o */
[33] = DEFINE_SC(0x4d), /* p */
[34] = DEFINE_SC(0x54), /* [ */
[35] = DEFINE_SC(0x5b), /* ] */
[36] = DEFINE_SC(0x5a), /* <enter> */
[37] = DEFINE_SC(0x14), /* <left ctrl> */
[38] = DEFINE_SC(0x1c), /* a */
[39] = DEFINE_SC(0x1b), /* s */
[40] = DEFINE_SC(0x23), /* d */
[41] = DEFINE_SC(0x2b), /* f */
[42] = DEFINE_SC(0x34), /* g */
[43] = DEFINE_SC(0x33), /* h */
[44] = DEFINE_SC(0x3b), /* j */
[45] = DEFINE_SC(0x42), /* k */
[46] = DEFINE_SC(0x4b), /* l */
[47] = DEFINE_SC(0x4c), /* ; */
[48] = DEFINE_SC(0x52), /* ' */
[49] = DEFINE_SC(0x0e), /* ` */
[50] = DEFINE_SC(0x12), /* <left shift> */
[51] = DEFINE_SC(0x5d), /* \ */
[52] = DEFINE_SC(0x1a), /* z */
[53] = DEFINE_SC(0x22), /* x */
[54] = DEFINE_SC(0x21), /* c */
[55] = DEFINE_SC(0x2a), /* v */
[56] = DEFINE_SC(0x32), /* b */
[57] = DEFINE_SC(0x31), /* n */
[58] = DEFINE_SC(0x3a), /* m */
[59] = DEFINE_SC(0x41), /* < */
[60] = DEFINE_SC(0x49), /* > */
[61] = DEFINE_SC(0x4a), /* / */
[62] = DEFINE_SC(0x59), /* <right shift> */
[63] = DEFINE_SC(0x7c), /* keypad * */
[64] = DEFINE_SC(0x11), /* <left alt> */
[65] = DEFINE_SC(0x29), /* <space> */
[67] = DEFINE_SC(0x05), /* <F1> */
[68] = DEFINE_SC(0x06), /* <F2> */
[69] = DEFINE_SC(0x04), /* <F3> */
[70] = DEFINE_SC(0x0c), /* <F4> */
[71] = DEFINE_SC(0x03), /* <F5> */
[72] = DEFINE_SC(0x0b), /* <F6> */
[73] = DEFINE_SC(0x83), /* <F7> */
[74] = DEFINE_SC(0x0a), /* <F8> */
[75] = DEFINE_SC(0x01), /* <F9> */
[76] = DEFINE_SC(0x09), /* <F10> */
[79] = DEFINE_SC(0x6c), /* keypad 7 */
[80] = DEFINE_SC(0x75), /* keypad 8 */
[81] = DEFINE_SC(0x7d), /* keypad 9 */
[82] = DEFINE_SC(0x7b), /* keypad - */
[83] = DEFINE_SC(0x6b), /* keypad 4 */
[84] = DEFINE_SC(0x73), /* keypad 5 */
[85] = DEFINE_SC(0x74), /* keypad 6 */
[86] = DEFINE_SC(0x79), /* keypad + */
[87] = DEFINE_SC(0x69), /* keypad 1 */
[88] = DEFINE_SC(0x72), /* keypad 2 */
[89] = DEFINE_SC(0x7a), /* keypad 3 */
[90] = DEFINE_SC(0x70), /* keypad 0 */
[91] = DEFINE_SC(0x71), /* keypad . */
[94] = DEFINE_SC(0x61), /* <INT 1> */
[95] = DEFINE_SC(0x78), /* <F11> */
[96] = DEFINE_SC(0x07), /* <F12> */
[104] = DEFINE_ESC(0x5a), /* keypad <enter> */
[105] = DEFINE_ESC(0x14), /* <right ctrl> */
[106] = DEFINE_ESC(0x4a), /* keypad / */
[108] = DEFINE_ESC(0x11), /* <right alt> */
[110] = DEFINE_ESC(0x6c), /* <home> */
[111] = DEFINE_ESC(0x75), /* <up> */
[112] = DEFINE_ESC(0x7d), /* <pag up> */
[113] = DEFINE_ESC(0x6b), /* <left> */
[114] = DEFINE_ESC(0x74), /* <right> */
[115] = DEFINE_ESC(0x69), /* <end> */
[116] = DEFINE_ESC(0x72), /* <down> */
[117] = DEFINE_ESC(0x7a), /* <pag down> */
[118] = DEFINE_ESC(0x70), /* <ins> */
[119] = DEFINE_ESC(0x71), /* <delete> */
};
static bool running, done;
static const struct set2_scancode *to_code(u8 scancode)
{
return &keymap[scancode];
}
static void key_press(const struct set2_scancode *sc)
{
switch (sc->type) {
case SCANCODE_ESCAPED:
kbd_queue(0xe0);
/* fallthrough */
case SCANCODE_NORMAL:
kbd_queue(sc->code);
break;
case SCANCODE_KEY_PAUSE:
kbd_queue(0xe1);
kbd_queue(0x14);
kbd_queue(0x77);
kbd_queue(0xe1);
kbd_queue(0xf0);
kbd_queue(0x14);
kbd_queue(0x77);
break;
case SCANCODE_KEY_PRNTSCRN:
kbd_queue(0xe0);
kbd_queue(0x12);
kbd_queue(0xe0);
kbd_queue(0x7c);
break;
}
}
static void key_release(const struct set2_scancode *sc)
{
switch (sc->type) {
case SCANCODE_ESCAPED:
kbd_queue(0xe0);
/* fallthrough */
case SCANCODE_NORMAL:
kbd_queue(0xf0);
kbd_queue(sc->code);
break;
case SCANCODE_KEY_PAUSE:
/* nothing to do */
break;
case SCANCODE_KEY_PRNTSCRN:
kbd_queue(0xe0);
kbd_queue(0xf0);
kbd_queue(0x7c);
kbd_queue(0xe0);
kbd_queue(0xf0);
kbd_queue(0x12);
break;
}
}
static void *sdl__thread(void *p)
{
Uint32 rmask, gmask, bmask, amask;
struct framebuffer *fb = p;
SDL_Surface *guest_screen;
SDL_Surface *screen;
SDL_Event ev;
Uint32 flags;
kvm__set_thread_name("kvm-sdl-worker");
if (SDL_Init(SDL_INIT_VIDEO) != 0)
die("Unable to initialize SDL");
rmask = 0x000000ff;
gmask = 0x0000ff00;
bmask = 0x00ff0000;
amask = 0x00000000;
guest_screen = SDL_CreateRGBSurfaceFrom(fb->mem, fb->width, fb->height, fb->depth, fb->width * fb->depth / 8, rmask, gmask, bmask, amask);
if (!guest_screen)
die("Unable to create SDL RBG surface");
flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_DOUBLEBUF;
SDL_WM_SetCaption("KVM tool", "KVM tool");
screen = SDL_SetVideoMode(fb->width, fb->height, fb->depth, flags);
if (!screen)
die("Unable to set SDL video mode");
SDL_EnableKeyRepeat(200, 50);
while (running) {
SDL_BlitSurface(guest_screen, NULL, screen, NULL);
SDL_Flip(screen);
while (SDL_PollEvent(&ev)) {
switch (ev.type) {
case SDL_KEYDOWN: {
const struct set2_scancode *sc = to_code(ev.key.keysym.scancode);
if (sc->type == SCANCODE_UNKNOWN) {
pr_warning("key '%d' not found in keymap", ev.key.keysym.scancode);
break;
}
key_press(sc);
break;
}
case SDL_KEYUP: {
const struct set2_scancode *sc = to_code(ev.key.keysym.scancode);
if (sc->type == SCANCODE_UNKNOWN)
break;
key_release(sc);
break;
}
case SDL_QUIT:
goto exit;
}
}
SDL_Delay(1000 / FRAME_RATE);
}
if (running == false && done == false) {
done = true;
return NULL;
}
exit:
done = true;
kvm_cpu__reboot(fb->kvm);
return NULL;
}
static int sdl__start(struct framebuffer *fb)
{
pthread_t thread;
running = true;
if (pthread_create(&thread, NULL, sdl__thread, fb) != 0)
return -1;
return 0;
}
static int sdl__stop(struct framebuffer *fb)
{
running = false;
while (done == false)
sleep(0);
return 0;
}
static struct fb_target_operations sdl_ops = {
.start = sdl__start,
.stop = sdl__stop,
};
int sdl__init(struct kvm *kvm)
{
struct framebuffer *fb;
if (!kvm->cfg.sdl)
return 0;
fb = vesa__init(kvm);
if (IS_ERR(fb)) {
pr_err("vesa__init() failed with error %ld\n", PTR_ERR(fb));
return PTR_ERR(fb);
}
return fb__attach(fb, &sdl_ops);
}
dev_init(sdl__init);
int sdl__exit(struct kvm *kvm)
{
if (kvm->cfg.sdl)
return sdl__stop(NULL);
return 0;
}
dev_exit(sdl__exit);
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