#include <stdio.h>
#include <string.h>
#include <errno.h>
+#include <sys/time.h>
#ifdef HAVE_LIBPNG
#include <setjmp.h>
#include "chargen-4x8.h"
#include "hw_lem1802.h"
-#undef DEBUG
+/* lem1802
+ *
+ * TODO:
+ * multiple vnc displays
+ */
+
#ifdef DEBUG
#define TRACE(...) do { printf("[debug] "); printf(__VA_ARGS__); printf("\n"); } while (0)
#else /* DEBUG */
#define TRACE(...) 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 PIX_X 160 /* pixels in display */
#define PIX_Y 128 /* pixels in display */
};
struct lem1802_ {
- long long cycle_activated; /* for tracking 'turn on delay' */
+ long long cycle_activated; /* running since */
+ long long cycles_until_active_; /* for tracking power-up delay */
DCPU16_WORD video_base;
DCPU16_WORD font_base;
unsigned int blink_tally_; /* tick */
unsigned int blink_state;
+ enum cycle_state_ {
+ CYCLE_IDLE,
+ CYCLE_COPY_TO_RAM,
+ } cycle_state_;
+ const DCPU16_WORD *cycle_state_copy_src_ptr_;
+ DCPU16_WORD cycle_state_copy_dst_addr_;
+ size_t cycle_state_copy_words_;
+
int (*render)(void *, struct pixel_ *, size_t, size_t);
void *renderer_data;
};
+static
+long long power_on_cycles_(void) {
+ struct tv;
+ long long r = 0;
+
+#if WANT_DELAY_START
+ gettimeofday(&tv, NULL);
+ r += LEM1802_POWER_ON_CYCLES - (LEM1802_POWER_ON_CYCLES / 10);
+ r += tv.tv_usec % (LEM1802_POWER_ON_CYCLES / 5);
+#endif
+
+ return r;
+}
+
static inline
void pixel_color_(struct pixel_ *pix, DCPU16_WORD color) {
unsigned char x;
size_t pix_x, pix_y;
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__,
fg->r, fg->g, fg->b,
bg->r, bg->g, bg->b,
font_bitmap[0], font_bitmap[1], font_bitmap[2], font_bitmap[3]);
+#endif
for (pix_x = 0; pix_x < CELL_X_SZ; pix_x++) {
for (pix_y = 0; pix_y < CELL_Y_SZ; pix_y++) {
cell_x = (addr - base) % CELL_X;
cell_y = (addr - base) / CELL_X;
+#if 0
TRACE("%s>> addr:0x%04x col:%u row:%u v:%hu",
__func__,
addr,
cell_x, cell_y, mem[addr]);
+#endif
blink = mem[addr] & 0x0080;
struct pixel_ border;
size_t tile;
+#if 0
TRACE("%s>> video_base:0x%04x", __func__, display->video_base);
+#endif
+
+ if (display->cycles_until_active_) {
+ /* show cute power-up sequence.. */
+ memset(display->pixbuf, 0, PIX_X * PIX_Y * sizeof *display->pixbuf);
+ return;
+ }
if (display->video_base == 0) {
- /* disconnected, blank display. static might be fun, too */
+ /* disconnected, blank display */
memset(display->pixbuf, 0, PIX_X * PIX_Y * sizeof *display->pixbuf);
return;
}
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);
}
}
#ifdef HAVE_LIBPNG
static
-void pixbuf_render_png_user_warning_(png_structp png, png_const_charp msg) {
- (void)png, (void)msg;
-}
-static
-void pixbuf_render_png_user_error_(png_structp png, png_const_charp msg) {
- (void)png, (void)msg;
-}
-static
int pixbuf_render_png_(void *data, struct pixel_ *pixbuf, size_t x, size_t y) {
FILE *f = (FILE *)data;
int retval = 0;
png_infop info;
size_t i;
- png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, pixbuf_render_png_user_error_, pixbuf_render_png_user_warning_);
+ png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (png == NULL) {
goto f_done;
}
#endif /* HAVE_LIBPNG */
#ifdef HAVE_LIBVNCSERVER
-struct vnc_server_ {
- rfbScreenInfoPtr rfbScreen;
-};
-
-/* create and return a new struct vnc_server_, for use as a vnc renderer's generic data */
-void *lem1802_vnc_init_data(int argc, char *argv[], struct dcpu16_hw *hw) {
- struct vnc_server_ *s;
- struct pixel_ *pixbuf = ((struct lem1802_ *)(hw->data))->pixbuf;
+/* create and return a new screen, easiest to do here because we know the screen dimensions */
+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;
int bitsPerSample = 8;
int samplesPerPixel = 3;
int bytesPerPixel = 4;
- s = calloc(1, sizeof *s);
+ s = rfbGetScreen(&argc, argv, paddedWidth, height, bitsPerSample, samplesPerPixel, bytesPerPixel);
if (s == NULL)
return NULL;
- s->rfbScreen = rfbGetScreen(&argc, argv, paddedWidth, height, bitsPerSample, samplesPerPixel, bytesPerPixel);
- if (s->rfbScreen == NULL) {
- free(s);
- return NULL;
- }
-
- s->rfbScreen->desktopName = "NYA ELEKTRISKA LEM1802";
- s->rfbScreen->alwaysShared = TRUE;
+ s->alwaysShared = TRUE;
#if 0
- s->rfbScreen->kbdAddEvent = HandleKey; */
- s->rfbScreen->httpDir = "../classes";
+ s->httpDir = "../classes";
#endif
- s->rfbScreen->frameBuffer = (char *)pixbuf;
-
- rfbInitServer(s->rfbScreen);
-
- rfbRunEventLoop(s->rfbScreen,-1,TRUE);
-
- TRACE("%s>> initialized new vnc server", __func__);
+ TRACE("%s>> s:%p", __func__, VOIDP(s));
+ TRACE("%s>> s->kbdAddEvent:%p s->frameBuffer:%p", __func__, VOIDFP(s->kbdAddEvent), s->frameBuffer);
return s;
}
+
+/* notify rfb server that pixels may have changed */
static
int pixbuf_render_vnc_(void *data, struct pixel_ *pixbuf, size_t x, size_t y) {
+ rfbScreenInfoPtr s = (rfbScreenInfoPtr)data;
int retval = 0;
- struct vnc_server_ *s = (struct vnc_server_ *)data;
(void)pixbuf;
/* derp */
- rfbMarkRectAsModified(s->rfbScreen,0,0,x,y);
+ if (s)
+ rfbMarkRectAsModified(s, 0, 0, x, y);
TRACE("%s>>", __func__);
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;
display->blink_tally_ = 0;
display->blink_state = 0;
+ display->cycle_state_ = 0;
+
#if DEBUG
vm->trace_cb_("%s>>", __func__);
#endif /* DEBUG */
}
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;
/*
- maybe just step through video memory (if set)
- one word per clock..? could just cheat and
- use accounting callbacks..
-
+ for more cycle-accuracy, could step through video memory, if set,
+ one word per clock..
for now just count cycles and issue a full refresh/render
every so often
*/
lem1802_pixbuf_refresh_full_(display, vm->ram);
display->render(display->renderer_data, display->pixbuf, PIX_X, PIX_Y);
}
+
+ switch (display->cycle_state_) {
+ case CYCLE_IDLE:
+ break;
+
+ case CYCLE_COPY_TO_RAM:
+ TRACE("%s>> copy_to_ram words:%zu src:%p dst_addr:0x%04x",
+ __func__,
+ display->cycle_state_copy_words_,
+ 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_++;
+ display->cycle_state_copy_src_ptr_++;
+ display->cycle_state_copy_words_--;
+ if (display->cycle_state_copy_words_ == 0) {
+ display->cycle_state_ = CYCLE_IDLE;
+ }
+ break;
+ }
+
+ if (display->cycles_until_active_) {
+ display->cycles_until_active_--;
+ if (display->cycles_until_active_ == 0) {
+ TRACE("%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];
- size_t i;
TRACE("%s>> A:0x%04x B:0x%04x", __func__, reg_a, reg_b);
switch (reg_a) {
case 0: /* MEM_MAP_SCREEN */
if (display->cycle_activated == 0 && reg_b) {
- display->cycle_activated = vm->cycle;
+ display->cycle_activated = vm->cycle_;
+ display->cycles_until_active_ = power_on_cycles_();
}
display->video_base = reg_b;
if (reg_b == 0)
break;
case 4: /* MEM_DUMP_FONT */
- for (i = 0; i < 128 ; i++) {
- vm->ram[reg_b] = chargen_4x8_glyphs[reg_b][0] << 8;
- vm->ram[reg_b] |= chargen_4x8_glyphs[reg_b][1];
- reg_b += 1;
- vm->ram[reg_b] = chargen_4x8_glyphs[reg_b][2] << 8;
- vm->ram[reg_b] |= chargen_4x8_glyphs[reg_b][3];
- reg_b += 1;
- }
- vm->cycle += 256;
+ display->cycle_state_copy_src_ptr_ = (DCPU16_WORD *)chargen_4x8_glyphs;
+ display->cycle_state_copy_dst_addr_ = reg_b;
+ display->cycle_state_copy_words_ = 256;
+ display->cycle_state_ = CYCLE_COPY_TO_RAM;
+ dcpu16_cycle_inc(vm, 256);
break;
case 5: /* MEM_DUMP_PALETTE */
- for (i = 0; i < 16; i++) {
- vm->ram[reg_b] = palette_default_[i];
- reg_b += 1;
- }
- vm->cycle += 16;
+ display->cycle_state_copy_src_ptr_ = palette_default_;
+ display->cycle_state_copy_dst_addr_ = reg_b;
+ display->cycle_state_copy_words_ = 16;
+ display->cycle_state_ = CYCLE_COPY_TO_RAM;
+ dcpu16_cycle_inc(vm, 16);
break;
}
}
{ 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)
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;
+ hw->vm->warn_cb_("%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));
+ hw->vm->warn_cb_("%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 = 100000;
+ ((struct lem1802_ *)(hw->data))->blink_rate = 75000;
- 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);
+ free(hw->data);
+ hw->data = NULL;
}
- *hw = 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;
+ }
+
+ 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;
+ }
+
+ 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);
+
+ 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;
+
+ 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);
+
+ 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;
+ TRACE("%s>> renderer set to %s", __func__, renderer);
+ return 0;
+ }
+ }
+
+ hw->vm->warn_cb_("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;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+
+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
+};
+
+struct dcpu16_hw_module dcpu16_hw_module_lem1802 = {
+ .template = &hw_,
+ .data_init = lem1802_data_init_,
+ .data_free = lem1802_data_free_,
+ .ctl = lem1802_data_ctl_,
+ .ctl_cmd = ctl_,
+};
+