X-Git-Url: http://git.squeep.com/?p=dcpu16;a=blobdiff_plain;f=hw_lem1802.c;h=f8004a38571670eb9e13443e80dc1a00d36f4743;hp=e7e618393fc4e313607a24b7f9022a012656b1ae;hb=HEAD;hpb=ce296c260b229bb5c2e866db7842f3a46ea8c4b7

diff --git a/hw_lem1802.c b/hw_lem1802.c
index e7e6183..f8004a3 100644
--- a/hw_lem1802.c
+++ b/hw_lem1802.c
@@ -18,29 +18,30 @@
 #include "chargen-4x8.h"
 #include "hw_lem1802.h"
 
+/* lem1802
+ *
+ * TODO:
+ * multiple vnc displays
+ */
+
+#define MSG_(__level__, __vm__, ...) do { ((__vm__) ? ((struct dcpu16 *)(__vm__))->msg_cb_ : dcpu16_msg_)(__level__, __VA_ARGS__); } while (0)
+#define MSG_INFO(__vm__, ...) MSG_(DCPU16_MSG_INFO, __vm__, __VA_ARGS__)
+#define MSG_ERROR(__vm__, ...) MSG_(DCPU16_MSG_ERROR, __vm__, __VA_ARGS__)
 #ifdef DEBUG
-#define TRACE(...) do { printf("[debug] "); printf(__VA_ARGS__); printf("\n"); } while (0)
+#define MSG_DEBUG(__vm__, ...) MSG_(DCPU16_MSG_DEBUG, __vm__, __VA_ARGS__)
 #else /* DEBUG  */
-#define TRACE(...) do {} while (0)
+#define MSG_DEBUG(__vm__, ...) do { } while (0)
 #endif /* DEBUG */
 
-static dcpu16_hw_signal_t lem1802_reset_;
-static dcpu16_hw_signal_t lem1802_cycle_;
-static dcpu16_hw_signal_t lem1802_hwi_;
-static struct dcpu16_hw hw_ = {
-    .name_  = "LEM1802 - Low Energy Monitor",
-    .id_l   = 0xf615,
-    .id_h   = 0x7349,
-    .ver    = 0x1802,
-    .mfg_l  = 0x8b36,
-    .mfg_h  = 0x1c6c,
-    .hwi    = lem1802_hwi_,
-    .cycle  = lem1802_cycle_,
-    .reset  = lem1802_reset_,
-    .data   = (struct lem1802_ *)NULL
-};
+#ifdef WANT_VARIADIC_VOIDP_CAST
+#define VOIDP(__x__) ((void *)(__x__))
+#define VOIDFP(__x__) ((void *)(size_t)(__x__))
+#else
+#define VOIDP(__x__) (__x__)
+#define VOIDFP(__x__) (__x__)
+#endif
 
-#define LEM1802_POWER_ON_CYCLES 100000 /* this should vary by, let us say, 10% */
+#define LEM1802_POWER_ON_CYCLES 100000 /* 'about one second' */
 
 #define PIX_X 160       /* pixels in display */
 #define PIX_Y 128       /* pixels in display */
@@ -74,7 +75,7 @@ struct pixel_ {
     unsigned char r;
     unsigned char g;
     unsigned char b;
-    unsigned char a;
+    unsigned char a; /* unused */
 };
 
 struct lem1802_ {
@@ -113,6 +114,7 @@ long long power_on_cycles_(void) {
 
 #if WANT_DELAY_START
     gettimeofday(&tv, NULL);
+    /* consider the 'about' in 'about one second' to be +/- 10% */
     r += LEM1802_POWER_ON_CYCLES - (LEM1802_POWER_ON_CYCLES / 10);
     r += tv.tv_usec % (LEM1802_POWER_ON_CYCLES / 5);
 #endif
@@ -141,7 +143,7 @@ static
 void pixbuf_border_paint_(struct pixel_ *pixbuf, struct pixel_ *border) {
     size_t x, y, i;
 
-    TRACE("%s>> painted border", __func__);
+    MSG_DEBUG(NULL, "%s>> painting border", __func__);
 
     /* top */
     for (y = 0; y < PIX_BORDER; y++) {
@@ -168,7 +170,7 @@ void font_tile_paint_(struct pixel_ *p, struct pixel_ *fg, struct pixel_ *bg, DC
     unsigned char *font_bitmap = (unsigned char *)tile;
 
 #if 0
-    TRACE("%s>> fg:(%u,%u,%u) bg:(%u,%u,%u) font_bitmap:%02x %02x %02x %02x", __func__,
+    MSG_DEBUG(NULL, "%s>> fg:(%u,%u,%u) bg:(%u,%u,%u) font_bitmap:%02x %02x %02x %02x", __func__,
           fg->r, fg->g, fg->b,
           bg->r, bg->g, bg->b,
           font_bitmap[0], font_bitmap[1], font_bitmap[2], font_bitmap[3]);
@@ -197,7 +199,7 @@ void pixbuf_addr_paint_(struct pixel_ *pixbuf, DCPU16_WORD *mem, DCPU16_WORD bas
     cell_y = (addr - base) / CELL_X;
 
 #if 0
-    TRACE("%s>> addr:0x%04x col:%u row:%u v:%hu",
+    MSG_DEBUG(NULL, "%s>> addr:0x%04x col:%u row:%u v:%hu",
           __func__,
           addr,
           cell_x, cell_y, mem[addr]);
@@ -229,7 +231,7 @@ void lem1802_pixbuf_refresh_full_(struct lem1802_ *display, DCPU16_WORD *mem) {
     size_t tile;
 
 #if 0
-    TRACE("%s>> video_base:0x%04x", __func__, display->video_base);
+    MSG_DEBUG(NULL, "%s>> video_base:0x%04x", __func__, display->video_base);
 #endif
 
     if (display->cycles_until_active_) {
@@ -252,8 +254,8 @@ void lem1802_pixbuf_refresh_full_(struct lem1802_ *display, DCPU16_WORD *mem) {
                            mem,
                            display->video_base,
                            display->video_base + tile,
-                           display->palette_base ? mem + display->palette_base : palette_default_,
-                           display->font_base ? mem + display->font_base : (unsigned short *)chargen_4x8_glyphs,
+                           display->palette_base ? mem + display->palette_base : (DCPU16_WORD *)palette_default_,
+                           display->font_base ? mem + display->font_base : (DCPU16_WORD *)chargen_4x8_glyphs,
                            display->blink_state);
     }
 }
@@ -321,7 +323,8 @@ f_done:
 
 #ifdef HAVE_LIBVNCSERVER
 /* create and return a new screen, easiest to do here because we know the screen dimensions */
-rfbScreenInfoPtr lem1802_rfb_new(int argc, char *argv[]) {
+static
+rfbScreenInfoPtr lem1802_rfb_new_(int argc, char *argv[]) {
     rfbScreenInfoPtr s;
     int paddedWidth = PIX_X + ( (PIX_X & 3) ? (4 - (PIX_X & 3)) : 0 );
     int height = PIX_Y;
@@ -339,21 +342,12 @@ rfbScreenInfoPtr lem1802_rfb_new(int argc, char *argv[]) {
     s->httpDir = "../classes";
 #endif
 
-    TRACE("%s>> s:%p", __func__, s);
-    TRACE("%s>> s->kbdAddEvent:%p s->frameBuffer:%p", __func__, s->kbdAddEvent, s->frameBuffer);
+    MSG_DEBUG(NULL, "%s>> s:%p", __func__, VOIDP(s));
+    MSG_DEBUG(NULL, "%s>> s->kbdAddEvent:%p s->frameBuffer:%p", __func__, VOIDFP(s->kbdAddEvent), s->frameBuffer);
 
     return s;
 }
 
-/* set up a new screen to see our pixels */
-void lem1802_vnc_associate(struct dcpu16_hw *hw, rfbScreenInfoPtr s) {
-    struct lem1802_ *display = (struct lem1802_ *)hw->data;
-
-    s->desktopName = "NYA ELEKTRISKA LEM1802";
-    s->frameBuffer = (char *)display->pixbuf;
-
-    TRACE("%s>> s:%p\n", __func__, s);
-}
 
 /* notify rfb server that pixels may have changed */
 static
@@ -363,11 +357,13 @@ int pixbuf_render_vnc_(void *data, struct pixel_ *pixbuf, size_t x, size_t y) {
 
     (void)pixbuf;
 
+    MSG_DEBUG(NULL, "%s>> s:%p", __func__, s);
+
     /* derp */
     if (s)
         rfbMarkRectAsModified(s, 0, 0, x, y);
 
-    TRACE("%s>>", __func__);
+    MSG_DEBUG(NULL, "%s>>", __func__);
 
     return retval;
 }
@@ -375,8 +371,8 @@ int pixbuf_render_vnc_(void *data, struct pixel_ *pixbuf, size_t x, size_t y) {
 
 
 static
-void lem1802_reset_(struct dcpu16 *vm, void *data) {
-    struct lem1802_ *display = (struct lem1802_ *)data;
+void lem1802_reset_(struct dcpu16 *vm, struct dcpu16_hw *hw) {
+    struct lem1802_ *display = (struct lem1802_ *)hw->data;
 
     (void)vm;
 
@@ -394,14 +390,12 @@ void lem1802_reset_(struct dcpu16 *vm, void *data) {
 
     display->cycle_state_ = 0;
 
-#if DEBUG
-    vm->trace_cb_("%s>>", __func__);
-#endif /* DEBUG */
+    MSG_DEBUG(vm, "%s>>", __func__);
 }
 
 static
-void lem1802_cycle_(struct dcpu16 *vm, void *data) {
-    struct lem1802_ *display = (struct lem1802_ *)data;
+void lem1802_cycle_(struct dcpu16 *vm, struct dcpu16_hw *hw) {
+    struct lem1802_ *display = (struct lem1802_ *)hw->data;
 
     (void)vm;
     /*
@@ -415,14 +409,14 @@ void lem1802_cycle_(struct dcpu16 *vm, void *data) {
     if (display->blink_tally_ >= display->blink_rate) {
         display->blink_tally_ = 0;
         display->blink_state ^= 1;
-        TRACE("%s>> blink:%u (%u cycles)", __func__, display->blink_state, display->blink_rate);
+        MSG_DEBUG(vm, "%s>> blink:%u (%u cycles)", __func__, display->blink_state, display->blink_rate);
     }
 
     display->refresh_tally_++;
     if (display->refresh_tally_ >= display->refresh_rate) {
         display->refresh_tally_ = 0;
         if (display->render)
-            TRACE("%s>> refresh", __func__);
+            MSG_DEBUG(vm, "%s>> refresh", __func__);
             lem1802_pixbuf_refresh_full_(display, vm->ram);
             display->render(display->renderer_data, display->pixbuf, PIX_X, PIX_Y);
     }
@@ -432,10 +426,10 @@ void lem1802_cycle_(struct dcpu16 *vm, void *data) {
             break;
 
         case CYCLE_COPY_TO_RAM:
-            TRACE("%s>> copy_to_ram words:%zu src:%p dst_addr:0x%04x",
+            MSG_DEBUG(vm, "%s>> copy_to_ram words:%zu src:%p dst_addr:0x%04x",
                   __func__,
                   display->cycle_state_copy_words_,
-                  display->cycle_state_copy_src_ptr_,
+                  VOIDP(display->cycle_state_copy_src_ptr_),
                   display->cycle_state_copy_dst_addr_);
             vm->ram[display->cycle_state_copy_dst_addr_] = *display->cycle_state_copy_src_ptr_;
             display->cycle_state_copy_dst_addr_++;
@@ -450,18 +444,18 @@ void lem1802_cycle_(struct dcpu16 *vm, void *data) {
     if (display->cycles_until_active_) {
         display->cycles_until_active_--;
         if (display->cycles_until_active_ == 0) {
-            TRACE("%s>> display now active", __func__);
+            MSG_DEBUG(vm, "%s>> display now active", __func__);
         }
     }
 }
 
 static
-void lem1802_hwi_(struct dcpu16 *vm, void *data) {
-    struct lem1802_ *display = (struct lem1802_ *)data;
+void lem1802_hwi_(struct dcpu16 *vm, struct dcpu16_hw *hw) {
+    struct lem1802_ *display = (struct lem1802_ *)hw->data;
     DCPU16_WORD reg_a = vm->reg[DCPU16_REG_A];
     DCPU16_WORD reg_b = vm->reg[DCPU16_REG_B];
 
-    TRACE("%s>> A:0x%04x B:0x%04x", __func__, reg_a, reg_b);
+    MSG_DEBUG(vm, "%s>> A:0x%04x B:0x%04x", __func__, reg_a, reg_b);
 
     switch (reg_a) {
         case 0: /* MEM_MAP_SCREEN */
@@ -472,18 +466,22 @@ void lem1802_hwi_(struct dcpu16 *vm, void *data) {
             display->video_base = reg_b;
             if (reg_b == 0)
                 display->cycle_activated = 0;
+            MSG_DEBUG(vm, "%s>> video_base:0x%04x", __func__, reg_b);
             break;
 
         case 1: /* MEM_MAP_FONT */
             display->font_base = reg_b;
+            MSG_DEBUG(vm, "%s>> font_base:0x%04x", __func__, reg_b);
             break;
 
         case 2: /* MEM_MAP_PALETTE */
             display->palette_base = reg_b;
+            MSG_DEBUG(vm, "%s>> palette_base:0x%04x", __func__, reg_b);
             break;
 
         case 3: /* SET_BORDER_COLOR */
             display->border_color = reg_b & 0x000f;
+            MSG_DEBUG(vm, "%s>> border_color_index:0x%01x", __func__, reg_b & 0x000f);
             break;
 
         case 4: /* MEM_DUMP_FONT */
@@ -491,6 +489,7 @@ void lem1802_hwi_(struct dcpu16 *vm, void *data) {
             display->cycle_state_copy_dst_addr_ = reg_b;
             display->cycle_state_copy_words_ = 256;
             display->cycle_state_ = CYCLE_COPY_TO_RAM;
+            MSG_DEBUG(vm, "%s>> copying default font into 0x%04x - 0x%04x", __func__, reg_b, reg_b + 256);
             dcpu16_cycle_inc(vm, 256);
             break;
 
@@ -499,6 +498,7 @@ void lem1802_hwi_(struct dcpu16 *vm, void *data) {
             display->cycle_state_copy_dst_addr_ = reg_b;
             display->cycle_state_copy_words_ = 16;
             display->cycle_state_ = CYCLE_COPY_TO_RAM;
+            MSG_DEBUG(vm, "%s>> copying default palette into 0x%04x - 0x%04x", __func__, reg_b, reg_b + 16);
             dcpu16_cycle_inc(vm, 16);
             break;
     }
@@ -520,22 +520,8 @@ static struct renderer_ {
     { NULL, NULL, NULL }
 };
 
-int lem1802_renderer_set(struct dcpu16_hw *hw, const char *renderer, void *data) {
-    struct renderer_ *r;
-
-    for (r = lem1802_renderers_; r->renderer; r++) {
-        if (strcmp(renderer, r->name) == 0) {
-            ((struct lem1802_ *)(hw->data))->render = r->renderer;
-            ((struct lem1802_ *)(hw->data))->renderer_data = data;
-            TRACE("%s>> renderer set to %s", __func__, renderer);
-            return 0;
-        }
-    }
-
-    return -1;
-}
-
-char *lem1802_renderers_iter(void **iterp, char **name, char **args) {
+static
+char *lem1802_renderers_iter_(void **iterp, char **name, char **args) {
     struct renderer_ **r = (struct renderer_ **)iterp;
 
     if (*r == NULL)
@@ -554,54 +540,193 @@ char *lem1802_renderers_iter(void **iterp, char **name, char **args) {
     return (*r)->name;
 }
 
-/* instantitate a new display */
-struct dcpu16_hw *lem1802_new(struct dcpu16 *vm) {
-    struct dcpu16_hw *hw;
-
-    hw = calloc(1, sizeof *hw);
-    if (hw == NULL) {
-        vm->warn_cb_("%s():%s", "calloc", strerror(errno));
-        return NULL;
-    }
-
-    memcpy(hw, &hw_, sizeof *hw);
+static
+int lem1802_data_init_(struct dcpu16_hw *hw, void *data) {
+    (void)data;
 
-    hw->data = calloc(1, sizeof(struct dcpu16_hw));
+    hw->data = calloc(1, sizeof(struct lem1802_));
     if (hw->data == NULL) {
-        vm->warn_cb_("%s():%s", "calloc", strerror(errno));
-        free(hw);
-        return NULL;
+        MSG_ERROR(hw->vm, "%s():%s", "calloc", strerror(errno));
+        return -1;
     }
 
-    ((struct lem1802_ *)(hw->data))->pixbuf = calloc(1, PIX_X * PIX_Y * sizeof *((struct lem1802_ *)(hw->data))->pixbuf);
+    ((struct lem1802_ *)(hw->data))->pixbuf = calloc(PIX_X * PIX_Y, sizeof *((struct lem1802_ *)(hw->data))->pixbuf);
     if (((struct lem1802_ *)(hw->data))->pixbuf == NULL) {
-        vm->warn_cb_("%s():%s", "calloc", strerror(errno));
+        MSG_ERROR(hw->vm, "%s():%s", "calloc", strerror(errno));
         free(hw->data);
-        free(hw);
-        return NULL;
+        hw->data = NULL;
+        return -1;
     }
 
     ((struct lem1802_ *)(hw->data))->refresh_rate = 1666;
     ((struct lem1802_ *)(hw->data))->blink_rate = 75000;
 
-    hw->vm = vm;
-
-    return hw;
+    return 0;
 }
 
-void lem1802_del(struct dcpu16_hw **hw) {
+static
+void lem1802_data_free_(struct dcpu16_hw *hw) {
     if (hw) {
-        if (*hw) {
-            if ((*hw)->data) {
-                if (((struct lem1802_ *)(*hw)->data)->pixbuf) {
-                    free(((struct lem1802_ *)(*hw)->data)->pixbuf);
-                    ((struct lem1802_ *)(*hw)->data)->pixbuf = NULL;
-                }
-                free((*hw)->data);
-                (*hw)->data = NULL;
+        if (hw->data) {
+            if (((struct lem1802_ *)(hw->data))->pixbuf) {
+                free(((struct lem1802_ *)(hw->data))->pixbuf);
+                ((struct lem1802_ *)(hw->data))->pixbuf = NULL;
+            }
+            free(hw->data);
+            hw->data = NULL;
+        }
+    }
+}
+
+static struct dcpu16_hw_ctl_cmd ctl_[] = {
+    { "blink_rate", "const unsigned int *", "unsigned int *", "sets or gets cycles per blink toggle" },
+    { "refresh_rate", "const unsigned int *", "unsigned int *", "sets or gets cycles per screen refresh" },
+#ifdef HAVE_LIBVNCSERVER
+    { "new_rfbScreen", "struct { int argc; char **argv;} *", "rfbScreenInfoPtr *", "allocates a new rfb screen" },
+    { "associate_rfbScreen", "rfbScreenInfoPtr", "NULL", "associates this lem1802 instance with an rfb display" },
+#endif /* HAVE_LIBVNCSERVER */
+    { "renderers_iter", "void **", "struct {char *name; char *args;} *", "returns the next renderer this module is capable of using" },
+    { "renderer", "const char *", "NULL", "sets this lem1802 instance to use renderer" },
+    { "renderer_data", "void *", "NULL", "sets renderer-specific data" },
+    { NULL, NULL, NULL, NULL }
+};
+
+static
+int lem1802_data_ctl_(struct dcpu16_hw *hw, const char *cmd, void *data_in, void *data_out) {
+    if (strcmp(cmd, "blink_rate") == 0) {
+        struct lem1802_ *display = (struct lem1802_ *)hw->data;
+        const unsigned int *rate_in = (const unsigned int *)data_in;
+        unsigned int *rate_out = (unsigned int *)data_out;
+
+        if (rate_out) {
+            *rate_out = display->blink_rate;
+        }
+
+        if (rate_in) {
+            display->blink_rate = *rate_in;
+        }
+
+        MSG_DEBUG(hw->vm, "%s>> %s now:%u was:%u", __func__, "blink_rate", *rate_in, *rate_out);
+
+        return 0;
+    }
+
+    if (strcmp(cmd, "refresh_rate") == 0) {
+        struct lem1802_ *display = (struct lem1802_ *)hw->data;
+        const unsigned int *rate_in = (const unsigned int *)data_in;
+        unsigned int *rate_out = (unsigned int *)data_out;
+
+        if (rate_out) {
+            *rate_out = display->refresh_rate;
+        }
+
+        if (rate_in) {
+            display->refresh_rate = *rate_in;
+        }
+
+        MSG_DEBUG(hw->vm, "%s>> %s now:%u was:%u", __func__, "refresh_rate", *rate_in, *rate_out);
+
+        return 0;
+    }
+
+#ifdef HAVE_LIBVNCSERVER
+    if (strcmp(cmd, "new_rfbScreen") == 0) {
+        struct args_ { int argc; char **argv;} *in = (struct args_ *)data_in;
+        rfbScreenInfoPtr *s_out = (rfbScreenInfoPtr *)data_out;
+
+        if (in == NULL || s_out == NULL)
+            return -EFAULT;
+
+        *s_out = lem1802_rfb_new_(in->argc, in->argv);
+
+        MSG_DEBUG(NULL, "%s>> %s s:%p", __func__, "new_rfbScreen", *s_out);
+
+        return 0;
+    }
+
+    if (strcmp(cmd, "associate_rfbScreen") == 0) {
+        struct lem1802_ *display = (struct lem1802_ *)hw->data;
+        rfbScreenInfoPtr rfbScreen = (rfbScreenInfoPtr)data_in;
+        (void)data_out;
+
+        if (rfbScreen == NULL)
+            return -EFAULT;
+
+        rfbScreen->desktopName = "NYA ELEKTRISKA LEM1802";
+        rfbScreen->frameBuffer = (char *)display->pixbuf;
+
+        MSG_DEBUG(hw->vm, "%s>> %s rfbScreen:%p", __func__, "associate_rfbScreen", rfbScreen);
+
+        return 0;
+    }
+#endif /* HAVE_LIBVNCSERVER */
+
+    if (strcmp(cmd, "renderers_iter") == 0) {
+        void **iterp = (void **)data_in;
+        struct packed_out_ {
+            char *name;
+            char *args;
+        } *parg = (struct packed_out_ *)data_out;
+
+        if (iterp == NULL || parg == NULL)
+            return -EFAULT;
+
+        (void)lem1802_renderers_iter_(iterp, &parg->name, &parg->args);
+
+        MSG_DEBUG(hw->vm, "%s>> %s", __func__, "renderers_iter");
+
+        return 0;
+    }
+
+    if (strcmp(cmd, "renderer") == 0) {
+        struct lem1802_ *display = (struct lem1802_ *)hw->data;
+        char *renderer = (char *)data_in;
+        (void)data_out;
+        struct renderer_ *r;
+
+        for (r = lem1802_renderers_; r->renderer; r++) {
+            if (strcmp(renderer, r->name) == 0) {
+                display->render = r->renderer;
+                MSG_DEBUG(hw->vm, "%s>> renderer set to %s", __func__, renderer);
+                return 0;
             }
-            free(*hw);
         }
-        *hw = NULL;
+
+        MSG_ERROR(hw->vm, "unknown renderer '%s'", renderer);
+
+        return -ENOENT;
     }
+
+    if (strcmp(cmd, "renderer_data") == 0) {
+        struct lem1802_ *display = (struct lem1802_ *)hw->data;
+        (void)data_out;
+
+        display->renderer_data = data_in;
+
+        MSG_DEBUG(hw->vm, "%s>> %s data:%p", __func__, "renderer_data", data_in);
+
+        return 0;
+    }
+
+    return -EINVAL;
 }
+
+
+struct dcpu16_hw_module dcpu16_hw_module_lem1802 = {
+    .name_  = "LEM1802 - Low Energy Monitor",
+
+    .id_l   = 0xf615,
+    .id_h   = 0x7349,
+    .ver    = 0x1802,
+    .mfg_l  = 0x8b36,
+    .mfg_h  = 0x1c6c,
+    .hwi    = lem1802_hwi_,
+    .cycle  = lem1802_cycle_,
+    .reset  = lem1802_reset_,
+
+    .data_init = lem1802_data_init_,
+    .data_free = lem1802_data_free_,
+    .ctl = lem1802_data_ctl_,
+    .ctl_cmd = ctl_,
+};
+