jazz-led: convert to QOM
Some simplifications in I/O functions are possible because Jazz LED only registers one byte of I/O. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Hervé Poussineau
Anthony Liguori
parent
63b9932dd0
commit
b39506e44d
159
hw/jazz_led.c
159
hw/jazz_led.c
@ -1,7 +1,7 @@
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/*
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* QEMU JAZZ LED emulator.
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*
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* Copyright (c) 2007 Hervé Poussineau
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* Copyright (c) 2007-2012 Herve Poussineau
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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@ -22,123 +22,53 @@
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "mips.h"
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#include "console.h"
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#include "pixel_ops.h"
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#include "trace.h"
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#include "sysbus.h"
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typedef enum {
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REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
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} screen_state_t;
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typedef struct LedState {
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SysBusDevice busdev;
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MemoryRegion iomem;
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uint8_t segments;
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DisplayState *ds;
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screen_state_t state;
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} LedState;
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static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
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static uint64_t jazz_led_read(void *opaque, target_phys_addr_t addr,
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unsigned int size)
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{
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LedState *s = opaque;
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uint8_t val;
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switch (addr) {
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case 0:
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val = s->segments;
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break;
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default:
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error_report("invalid read at [" TARGET_FMT_plx "]\n", addr);
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val = 0;
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}
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val = s->segments;
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trace_jazz_led_read(addr, val);
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return val;
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}
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static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
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{
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uint32_t v;
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#ifdef TARGET_WORDS_BIGENDIAN
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v = led_readb(opaque, addr) << 8;
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v |= led_readb(opaque, addr + 1);
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#else
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v = led_readb(opaque, addr);
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v |= led_readb(opaque, addr + 1) << 8;
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#endif
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return v;
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}
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static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
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{
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uint32_t v;
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#ifdef TARGET_WORDS_BIGENDIAN
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v = led_readb(opaque, addr) << 24;
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v |= led_readb(opaque, addr + 1) << 16;
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v |= led_readb(opaque, addr + 2) << 8;
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v |= led_readb(opaque, addr + 3);
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#else
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v = led_readb(opaque, addr);
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v |= led_readb(opaque, addr + 1) << 8;
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v |= led_readb(opaque, addr + 2) << 16;
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v |= led_readb(opaque, addr + 3) << 24;
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#endif
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return v;
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}
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static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
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static void jazz_led_write(void *opaque, target_phys_addr_t addr,
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uint64_t val, unsigned int size)
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{
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LedState *s = opaque;
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uint8_t new_val = val & 0xff;
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trace_jazz_led_write(addr, new_val);
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switch (addr) {
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case 0:
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s->segments = new_val;
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s->state |= REDRAW_SEGMENTS;
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break;
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default:
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error_report("invalid write of 0x%x at [" TARGET_FMT_plx "]\n",
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new_val, addr);
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break;
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}
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}
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static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
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{
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#ifdef TARGET_WORDS_BIGENDIAN
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led_writeb(opaque, addr, (val >> 8) & 0xff);
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led_writeb(opaque, addr + 1, val & 0xff);
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#else
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led_writeb(opaque, addr, val & 0xff);
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led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
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#endif
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}
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static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
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{
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#ifdef TARGET_WORDS_BIGENDIAN
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led_writeb(opaque, addr, (val >> 24) & 0xff);
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led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
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led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
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led_writeb(opaque, addr + 3, val & 0xff);
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#else
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led_writeb(opaque, addr, val & 0xff);
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led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
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led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
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led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
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#endif
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s->segments = new_val;
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s->state |= REDRAW_SEGMENTS;
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}
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static const MemoryRegionOps led_ops = {
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.old_mmio = {
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.read = { led_readb, led_readw, led_readl, },
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.write = { led_writeb, led_writew, led_writel, },
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},
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.read = jazz_led_read,
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.write = jazz_led_write,
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.endianness = DEVICE_NATIVE_ENDIAN,
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.impl.min_access_size = 1,
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.impl.max_access_size = 1,
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};
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/***********************************************************/
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@ -296,20 +226,71 @@ static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
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dpy_update(s->ds, 0, 0, 2, 1);
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}
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void jazz_led_init(MemoryRegion *address_space, target_phys_addr_t base)
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static int jazz_led_post_load(void *opaque, int version_id)
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{
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LedState *s;
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/* force refresh */
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jazz_led_invalidate_display(opaque);
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s = g_malloc0(sizeof(LedState));
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return 0;
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}
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s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
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static const VMStateDescription vmstate_jazz_led = {
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.name = "jazz-led",
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.version_id = 0,
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.minimum_version_id = 0,
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.minimum_version_id_old = 0,
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.post_load = jazz_led_post_load,
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.fields = (VMStateField[]) {
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VMSTATE_UINT8(segments, LedState),
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VMSTATE_END_OF_LIST()
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}
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};
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static int jazz_led_init(SysBusDevice *dev)
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{
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LedState *s = FROM_SYSBUS(LedState, dev);
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memory_region_init_io(&s->iomem, &led_ops, s, "led", 1);
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memory_region_add_subregion(address_space, base, &s->iomem);
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sysbus_init_mmio(dev, &s->iomem);
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s->ds = graphic_console_init(jazz_led_update_display,
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jazz_led_invalidate_display,
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jazz_led_screen_dump,
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jazz_led_text_update, s);
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return 0;
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}
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static void jazz_led_reset(DeviceState *d)
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{
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LedState *s = DO_UPCAST(LedState, busdev.qdev, d);
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s->segments = 0;
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s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
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qemu_console_resize(s->ds, 60, 80);
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}
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static void jazz_led_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
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k->init = jazz_led_init;
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dc->desc = "Jazz LED display",
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dc->vmsd = &vmstate_jazz_led;
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dc->reset = jazz_led_reset;
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}
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static TypeInfo jazz_led_info = {
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.name = "jazz-led",
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(LedState),
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.class_init = jazz_led_class_init,
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};
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static void jazz_led_register(void)
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{
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type_register_static(&jazz_led_info);
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}
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type_init(jazz_led_register);
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@ -10,9 +10,6 @@ PCIBus *gt64120_register(qemu_irq *pic);
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/* bonito.c */
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PCIBus *bonito_init(qemu_irq *pic);
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/* jazz_led.c */
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void jazz_led_init(MemoryRegion *address_space, target_phys_addr_t base);
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/* rc4030.c */
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typedef struct rc4030DMAState *rc4030_dma;
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void rc4030_dma_memory_rw(void *opaque, target_phys_addr_t addr, uint8_t *buf, int len, int is_write);
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@ -295,7 +295,7 @@ static void mips_jazz_init(MemoryRegion *address_space,
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sysbus_mmio_map(sysbus, 0, 0x80009000);
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/* LED indicator */
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jazz_led_init(address_space, 0x8000f000);
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sysbus_create_simple("jazz-led", 0x8000f000, NULL);
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}
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static
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