X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/87ecb68bdf8a3e40ef885ddbb7ca1797dca40ebf..1422e32db51ff2b1194fb24a6201c4310be5667d:/hw/jazz_led.c?ds=sidebyside

diff --git a/hw/jazz_led.c b/hw/jazz_led.c
index a0eea26b5a..09c77429e8 100644
--- a/hw/jazz_led.c
+++ b/hw/jazz_led.c
@@ -1,7 +1,7 @@
 /*
  * QEMU JAZZ LED emulator.
  *
- * Copyright (c) 2007 Hervé Poussineau
+ * Copyright (c) 2007-2012 Herve Poussineau
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,128 +22,54 @@
  * THE SOFTWARE.
  */
 
-#include "hw.h"
-#include "mips.h"
+#include "qemu-common.h"
 #include "console.h"
 #include "pixel_ops.h"
-
-//#define DEBUG_LED
+#include "trace.h"
+#include "sysbus.h"
 
 typedef enum {
     REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
 } screen_state_t;
 
 typedef struct LedState {
-    target_phys_addr_t base;
+    SysBusDevice busdev;
+    MemoryRegion iomem;
     uint8_t segments;
     DisplayState *ds;
     screen_state_t state;
 } LedState;
 
-static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
+static uint64_t jazz_led_read(void *opaque, hwaddr addr,
+                              unsigned int size)
 {
     LedState *s = opaque;
-    int relative_addr = addr - s->base;
-    uint32_t val;
+    uint8_t val;
 
-    switch (relative_addr) {
-        case 0:
-            val = s->segments;
-            break;
-        default:
-#ifdef DEBUG_LED
-            printf("jazz led: invalid read [0x%x]\n", relative_addr);
-#endif
-            val = 0;
-    }
+    val = s->segments;
+    trace_jazz_led_read(addr, val);
 
     return val;
 }
 
-static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
-{
-    uint32_t v;
-#ifdef TARGET_WORDS_BIGENDIAN
-    v = led_readb(opaque, addr) << 8;
-    v |= led_readb(opaque, addr + 1);
-#else
-    v = led_readb(opaque, addr);
-    v |= led_readb(opaque, addr + 1) << 8;
-#endif
-    return v;
-}
-
-static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
-{
-    uint32_t v;
-#ifdef TARGET_WORDS_BIGENDIAN
-    v = led_readb(opaque, addr) << 24;
-    v |= led_readb(opaque, addr + 1) << 16;
-    v |= led_readb(opaque, addr + 2) << 8;
-    v |= led_readb(opaque, addr + 3);
-#else
-    v = led_readb(opaque, addr);
-    v |= led_readb(opaque, addr + 1) << 8;
-    v |= led_readb(opaque, addr + 2) << 16;
-    v |= led_readb(opaque, addr + 3) << 24;
-#endif
-    return v;
-}
-
-static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void jazz_led_write(void *opaque, hwaddr addr,
+                           uint64_t val, unsigned int size)
 {
     LedState *s = opaque;
-    int relative_addr = addr - s->base;
-
-    switch (relative_addr) {
-        case 0:
-            s->segments = val;
-            s->state |= REDRAW_SEGMENTS;
-            break;
-        default:
-#ifdef DEBUG_LED
-            printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
-#endif
-            break;
-    }
-}
+    uint8_t new_val = val & 0xff;
 
-static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
-    led_writeb(opaque, addr, (val >> 8) & 0xff);
-    led_writeb(opaque, addr + 1, val & 0xff);
-#else
-    led_writeb(opaque, addr, val & 0xff);
-    led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
-#endif
-}
+    trace_jazz_led_write(addr, new_val);
 
-static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
-    led_writeb(opaque, addr, (val >> 24) & 0xff);
-    led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
-    led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
-    led_writeb(opaque, addr + 3, val & 0xff);
-#else
-    led_writeb(opaque, addr, val & 0xff);
-    led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
-    led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
-    led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
-#endif
+    s->segments = new_val;
+    s->state |= REDRAW_SEGMENTS;
 }
 
-static CPUReadMemoryFunc *led_read[3] = {
-    led_readb,
-    led_readw,
-    led_readl,
-};
-
-static CPUWriteMemoryFunc *led_write[3] = {
-    led_writeb,
-    led_writew,
-    led_writel,
+static const MemoryRegionOps led_ops = {
+    .read = jazz_led_read,
+    .write = jazz_led_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+    .impl.min_access_size = 1,
+    .impl.max_access_size = 1,
 };
 
 /***********************************************************/
@@ -154,8 +80,8 @@ static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx
     uint8_t *d;
     int x, bpp;
 
-    bpp = (ds->depth + 7) >> 3;
-    d = ds->data + ds->linesize * posy + bpp * posx1;
+    bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
+    d = ds_get_data(ds) + ds_get_linesize(ds) * posy + bpp * posx1;
     switch(bpp) {
         case 1:
             for (x = posx1; x <= posx2; x++) {
@@ -183,25 +109,25 @@ static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2,
     uint8_t *d;
     int y, bpp;
 
-    bpp = (ds->depth + 7) >> 3;
-    d = ds->data + ds->linesize * posy1 + bpp * posx;
+    bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
+    d = ds_get_data(ds) + ds_get_linesize(ds) * posy1 + bpp * posx;
     switch(bpp) {
         case 1:
             for (y = posy1; y <= posy2; y++) {
                 *((uint8_t *)d) = color;
-                d += ds->linesize;
+                d += ds_get_linesize(ds);
             }
             break;
         case 2:
             for (y = posy1; y <= posy2; y++) {
                 *((uint16_t *)d) = color;
-                d += ds->linesize;
+                d += ds_get_linesize(ds);
             }
             break;
         case 4:
             for (y = posy1; y <= posy2; y++) {
                 *((uint32_t *)d) = color;
-                d += ds->linesize;
+                d += ds_get_linesize(ds);
             }
             break;
     }
@@ -217,17 +143,17 @@ static void jazz_led_update_display(void *opaque)
 
     if (s->state & REDRAW_BACKGROUND) {
         /* clear screen */
-        bpp = (ds->depth + 7) >> 3;
-        d1 = ds->data;
-        for (y = 0; y < ds->height; y++) {
-            memset(d1, 0x00, ds->width * bpp);
-            d1 += ds->linesize;
+        bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
+        d1 = ds_get_data(ds);
+        for (y = 0; y < ds_get_height(ds); y++) {
+            memset(d1, 0x00, ds_get_width(ds) * bpp);
+            d1 += ds_get_linesize(ds);
         }
     }
 
     if (s->state & REDRAW_SEGMENTS) {
         /* set colors according to bpp */
-        switch (ds->depth) {
+        switch (ds_get_bits_per_pixel(ds)) {
             case 8:
                 color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
                 color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
@@ -271,7 +197,7 @@ static void jazz_led_update_display(void *opaque)
     }
 
     s->state = REDRAW_NONE;
-    dpy_update(ds, 0, 0, ds->width, ds->height);
+    dpy_gfx_update(ds, 0, 0, ds_get_width(ds), ds_get_height(ds));
 }
 
 static void jazz_led_invalidate_display(void *opaque)
@@ -280,26 +206,87 @@ static void jazz_led_invalidate_display(void *opaque)
     s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
 }
 
-static void jazz_led_screen_dump(void *opaque, const char *filename)
+static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
 {
-    printf("jazz_led_screen_dump() not implemented\n");
+    LedState *s = opaque;
+    char buf[2];
+
+    dpy_text_cursor(s->ds, -1, -1);
+    qemu_console_resize(s->ds, 2, 1);
+
+    /* TODO: draw the segments */
+    snprintf(buf, 2, "%02hhx\n", s->segments);
+    console_write_ch(chardata++, 0x00200100 | buf[0]);
+    console_write_ch(chardata++, 0x00200100 | buf[1]);
+
+    dpy_text_update(s->ds, 0, 0, 2, 1);
 }
 
-void jazz_led_init(DisplayState *ds, target_phys_addr_t base)
+static int jazz_led_post_load(void *opaque, int version_id)
 {
-    LedState *s;
-    int io;
+    /* force refresh */
+    jazz_led_invalidate_display(opaque);
+
+    return 0;
+}
+
+static const VMStateDescription vmstate_jazz_led = {
+    .name = "jazz-led",
+    .version_id = 0,
+    .minimum_version_id = 0,
+    .minimum_version_id_old = 0,
+    .post_load = jazz_led_post_load,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT8(segments, LedState),
+        VMSTATE_END_OF_LIST()
+    }
+};
 
-    s = qemu_mallocz(sizeof(LedState));
-    if (!s)
-        return;
+static int jazz_led_init(SysBusDevice *dev)
+{
+    LedState *s = FROM_SYSBUS(LedState, dev);
+
+    memory_region_init_io(&s->iomem, &led_ops, s, "led", 1);
+    sysbus_init_mmio(dev, &s->iomem);
+
+    s->ds = graphic_console_init(jazz_led_update_display,
+                                 jazz_led_invalidate_display,
+                                 NULL,
+                                 jazz_led_text_update, s);
+
+    return 0;
+}
 
-    s->base = base;
-    s->ds = ds;
+static void jazz_led_reset(DeviceState *d)
+{
+    LedState *s = DO_UPCAST(LedState, busdev.qdev, d);
+
+    s->segments = 0;
     s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
+    qemu_console_resize(s->ds, 60, 80);
+}
+
+static void jazz_led_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    io = cpu_register_io_memory(0, led_read, led_write, s);
-    cpu_register_physical_memory(s->base, 1, io);
+    k->init = jazz_led_init;
+    dc->desc = "Jazz LED display",
+    dc->vmsd = &vmstate_jazz_led;
+    dc->reset = jazz_led_reset;
+}
+
+static TypeInfo jazz_led_info = {
+    .name          = "jazz-led",
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(LedState),
+    .class_init    = jazz_led_class_init,
+};
 
-    graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s);
+static void jazz_led_register(void)
+{
+    type_register_static(&jazz_led_info);
 }
+
+type_init(jazz_led_register);