Changeset 4ed9bfe in buchla-emu for emu

Timestamp:

09/04/2017 02:28:12 PM (7 years ago)

Author:

Thomas Lopatic <thomas@…>

Branches:

master

Children:

d021bbb

Parents:

4f967e8

Message:

Support data keys, X, E, and M.

Location:

emu

Files:

• all.h (modified) (2 diffs)
• cpu.c (modified) (1 diff)
• kbd.c (modified) (4 diffs)
• sdl.c (modified) (4 diffs)
• ser.c (modified) (2 diffs)
• vid.c (modified) (2 diffs)

emu/all.h

@@ -66 +66 @@
 
 extern SDL_atomic_t run;
+
+extern uint32_t vid_win;
+extern uint32_t ser_win;
 
 extern void sdl_init(void);
@@ -158 +161 @@
 extern uint32_t kbd_read(uint32_t off, int32_t sz);
 extern void kbd_write(uint32_t off, int32_t sz, uint32_t val);
+
+extern void kbd_text(SDL_TextInputEvent *ev);
+extern void kbd_key(SDL_KeyboardEvent *ev);

emu/cpu.c

@@ -82 +82 @@
         { 0x3b4001, 0x3b8001, 0, snd_init, snd_quit, snd_exec, snd_read, snd_write },
         { 0x3b8001, 0x3bc001, 0, led_init, led_quit, led_exec, led_read, led_write },
-        { 0x3bc001, 0x3c0001, 0, kbd_init, kbd_quit, kbd_exec, kbd_read, kbd_write }
+        { 0x3bc001, 0x3c0001, 3, kbd_init, kbd_quit, kbd_exec, kbd_read, kbd_write }
 };
 

emu/kbd.c

@@ -24 +24 @@
 int32_t kbd_verbose = 0;
 
+#define BUF_SZ 16
+
+static int32_t buf_hd = 0;
+static int32_t buf_tl = 0;
+static uint8_t buf[BUF_SZ];
+
+static uint8_t reg = 0;
+static bool irq = false;
+
+static void xmit(void)
+{
+        ver2("kbd xmit %d %d", buf_tl, buf_hd);
+
+        if (buf_tl >= buf_hd) {
+                return;
+        }
+
+        reg = buf[buf_tl % BUF_SZ];
+        irq = true;
+        ver2("kbd xmit 0x%02x", reg);
+
+        ++buf_tl;
+
+        if (buf_tl >= BUF_SZ) {
+                buf_hd -= BUF_SZ;
+                buf_tl -= BUF_SZ;
+                ver2("kbd adj %d %d", buf_tl, buf_hd);
+        }
+}
+
+static void out(uint8_t c)
+{
+        ver2("kbd out %d %d 0x%02x", buf_tl, buf_hd, c);
+
+        if (SDL_LockMutex(cpu_mutex) < 0) {
+                fail("SDL_LockMutex() failed: %s", SDL_GetError());
+        }
+
+        if (buf_hd >= buf_tl + BUF_SZ) {
+                err("keyboard port losing data");
+        }
+        else {
+                buf[buf_hd % BUF_SZ] = c;
+                ++buf_hd;
+
+                if (!irq) {
+                        xmit();
+                }
+        }
+
+        if (SDL_UnlockMutex(cpu_mutex) < 0) {
+                fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
+        }
+}
+
+static void but_on(int32_t sig)
+{
+        out((uint8_t)(0x80 | sig));
+        out(0x01);
+}
+
+static void but_off(int32_t sig)
+{
+        out((uint8_t)(0x80 | sig));
+        out(0x00);
+}
+
+#if defined NOT_YET
+static void key_touch(int32_t sig, int32_t val)
+{
+        out((uint8_t)(0x80 | sig));
+        out(0x01);
+        out((uint8_t)val);
+}
+
+static void key_off(int32_t sig)
+{
+        out((uint8_t)(0x80 | sig));
+        out(0x00);
+}
+
+static void pot_128(int32_t sig, int32_t val)
+{
+        out((uint8_t)(0x80 | sig));
+        out((uint8_t)val);
+}
+
+static void pot_256(int32_t sig, int32_t val)
+{
+        out((uint8_t)(0x80 | sig));
+        out((uint8_t)((val >> 7) & 0x01));
+        out((uint8_t)(val & 0x7f));
+}
+#endif
+
+void kbd_key(SDL_KeyboardEvent *ev)
+{
+        (void)ev;
+}
+
+void kbd_text(SDL_TextInputEvent *ev)
+{
+        for (int32_t i = 0; ev->text[i] != 0; ++i) {
+                if (ev->text[i] >= '0' && ev->text[i] <= '9') {
+                        int32_t sig = 60 + ev->text[i] - '0';
+                        but_on(sig);
+                        but_off(sig);
+                        continue;
+                }
+
+                switch (ev->text[i]) {
+                case 'x':
+                        but_on(70);
+                        but_off(70);
+                        break;
+
+                case 'e':
+                        but_on(71);
+                        but_off(71);
+                        break;
+
+                case 'm':
+                        but_on(72);
+                        but_off(72);
+                        break;
+                }
+        }
+}
+
 void kbd_init(void)
 {
@@ -37 +166 @@
 {
         ver3("kbd exec");
-        return false;
+        return irq;
 }
 
@@ -43 +172 @@
 {
         ver2("kbd rd %u:%d", off, sz * 8);
-        return 0;
+
+        if (sz != 1 || off > 0) {
+                fail("invalid kbd rd %u:%d", off, sz * 8);
+        }
+
+        irq = false;
+        uint32_t res = reg;
+
+        xmit();
+
+        return res;
 }
 
@@ -49 +188 @@
 {
         ver2("kbd wr %u:%d 0x%0*x", off, sz * 8, sz * 2, val);
+        fail("invalid kbd wr %u:%d", off, sz * 8);
 }

emu/sdl.c

@@ -67 +67 @@
 
         bool rel_mod = false;
+        uint32_t win = 0;
 
         while (SDL_AtomicGet(&run) != 0) {
@@ -101 +102 @@
                                 SDL_AtomicSet(&run, 0);
                                 continue;
+                        }
+
+                        if (ev.type == SDL_WINDOWEVENT) {
+                                if (ev.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
+                                        ver("sdl ev win %u", ev.window.windowID);
+                                        win = ev.window.windowID;
+                                }
                         }
 
@@ -138 +146 @@
                         if (ev.type == SDL_TEXTINPUT) {
                                 ver("sdl ev text input %d", ev.text.text[0]);
-                                ser_text(&ev.text);
+
+                                if (win == ser_win) {
+                                        ser_text(&ev.text);
+                                }
+                                else if (win == vid_win) {
+                                        kbd_text(&ev.text);
+                                }
+
                                 continue;
                         }
@@ -144 +159 @@
                         if (ev.type == SDL_KEYDOWN) {
                                 ver("sdl ev key down %d", (int32_t)ev.key.keysym.sym);
-                                ser_key(&ev.key);
+
+                                if (win == ser_win) {
+                                        ser_key(&ev.key);
+                                }
+                                else if (win == vid_win) {
+                                        kbd_key(&ev.key);
+                                }
+
                                 continue;
                         }

emu/ser.c

@@ -63 +63 @@
 
 static SDL_Window *win;
+uint32_t ser_win;
+
 static SDL_Renderer *ren;
 static SDL_atomic_t frame;
@@ -477 +479 @@
         }
 
+        ser_win = SDL_GetWindowID(win);
+
+        if (ser_win == 0) {
+                fail("SDL_GetWindowID() failed: %s", SDL_GetError());
+        }
+
         ren = SDL_CreateRenderer(win, -1, 0);
 

emu/vid.c

@@ -80 +80 @@
 
 static SDL_Window *win;
+uint32_t vid_win;
+
 static SDL_Renderer *ren;
 static SDL_Texture *tex;
@@ -225 +227 @@
         if (win == NULL) {
                 fail("SDL_CreateWindow() failed: %s", SDL_GetError());
+        }
+
+        vid_win = SDL_GetWindowID(win);
+
+        if (vid_win == 0) {
+                fail("SDL_GetWindowID() failed: %s", SDL_GetError());
         }