diff options
Diffstat (limited to 'hw/pl050.c')
| -rw-r--r-- | hw/pl050.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/hw/pl050.c b/hw/pl050.c deleted file mode 100644 index 76735a0eda..0000000000 --- a/hw/pl050.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Arm PrimeCell PL050 Keyboard / Mouse Interface - * - * Copyright (c) 2006-2007 CodeSourcery. - * Written by Paul Brook - * - * This code is licensed under the GPL. - */ - -#include "hw/sysbus.h" -#include "hw/ps2.h" - -typedef struct { - SysBusDevice busdev; - MemoryRegion iomem; - void *dev; - uint32_t cr; - uint32_t clk; - uint32_t last; - int pending; - qemu_irq irq; - int is_mouse; -} pl050_state; - -static const VMStateDescription vmstate_pl050 = { - .name = "pl050", - .version_id = 2, - .minimum_version_id = 2, - .fields = (VMStateField[]) { - VMSTATE_UINT32(cr, pl050_state), - VMSTATE_UINT32(clk, pl050_state), - VMSTATE_UINT32(last, pl050_state), - VMSTATE_INT32(pending, pl050_state), - VMSTATE_END_OF_LIST() - } -}; - -#define PL050_TXEMPTY (1 << 6) -#define PL050_TXBUSY (1 << 5) -#define PL050_RXFULL (1 << 4) -#define PL050_RXBUSY (1 << 3) -#define PL050_RXPARITY (1 << 2) -#define PL050_KMIC (1 << 1) -#define PL050_KMID (1 << 0) - -static const unsigned char pl050_id[] = -{ 0x50, 0x10, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 }; - -static void pl050_update(void *opaque, int level) -{ - pl050_state *s = (pl050_state *)opaque; - int raise; - - s->pending = level; - raise = (s->pending && (s->cr & 0x10) != 0) - || (s->cr & 0x08) != 0; - qemu_set_irq(s->irq, raise); -} - -static uint64_t pl050_read(void *opaque, hwaddr offset, - unsigned size) -{ - pl050_state *s = (pl050_state *)opaque; - if (offset >= 0xfe0 && offset < 0x1000) - return pl050_id[(offset - 0xfe0) >> 2]; - - switch (offset >> 2) { - case 0: /* KMICR */ - return s->cr; - case 1: /* KMISTAT */ - { - uint8_t val; - uint32_t stat; - - val = s->last; - val = val ^ (val >> 4); - val = val ^ (val >> 2); - val = (val ^ (val >> 1)) & 1; - - stat = PL050_TXEMPTY; - if (val) - stat |= PL050_RXPARITY; - if (s->pending) - stat |= PL050_RXFULL; - - return stat; - } - case 2: /* KMIDATA */ - if (s->pending) - s->last = ps2_read_data(s->dev); - return s->last; - case 3: /* KMICLKDIV */ - return s->clk; - case 4: /* KMIIR */ - return s->pending | 2; - default: - qemu_log_mask(LOG_GUEST_ERROR, - "pl050_read: Bad offset %x\n", (int)offset); - return 0; - } -} - -static void pl050_write(void *opaque, hwaddr offset, - uint64_t value, unsigned size) -{ - pl050_state *s = (pl050_state *)opaque; - switch (offset >> 2) { - case 0: /* KMICR */ - s->cr = value; - pl050_update(s, s->pending); - /* ??? Need to implement the enable/disable bit. */ - break; - case 2: /* KMIDATA */ - /* ??? This should toggle the TX interrupt line. */ - /* ??? This means kbd/mouse can block each other. */ - if (s->is_mouse) { - ps2_write_mouse(s->dev, value); - } else { - ps2_write_keyboard(s->dev, value); - } - break; - case 3: /* KMICLKDIV */ - s->clk = value; - return; - default: - qemu_log_mask(LOG_GUEST_ERROR, - "pl050_write: Bad offset %x\n", (int)offset); - } -} -static const MemoryRegionOps pl050_ops = { - .read = pl050_read, - .write = pl050_write, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static int pl050_init(SysBusDevice *dev, int is_mouse) -{ - pl050_state *s = FROM_SYSBUS(pl050_state, dev); - - memory_region_init_io(&s->iomem, &pl050_ops, s, "pl050", 0x1000); - sysbus_init_mmio(dev, &s->iomem); - sysbus_init_irq(dev, &s->irq); - s->is_mouse = is_mouse; - if (s->is_mouse) - s->dev = ps2_mouse_init(pl050_update, s); - else - s->dev = ps2_kbd_init(pl050_update, s); - return 0; -} - -static int pl050_init_keyboard(SysBusDevice *dev) -{ - return pl050_init(dev, 0); -} - -static int pl050_init_mouse(SysBusDevice *dev) -{ - return pl050_init(dev, 1); -} - -static void pl050_kbd_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = pl050_init_keyboard; - dc->vmsd = &vmstate_pl050; -} - -static const TypeInfo pl050_kbd_info = { - .name = "pl050_keyboard", - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(pl050_state), - .class_init = pl050_kbd_class_init, -}; - -static void pl050_mouse_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = pl050_init_mouse; - dc->vmsd = &vmstate_pl050; -} - -static const TypeInfo pl050_mouse_info = { - .name = "pl050_mouse", - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(pl050_state), - .class_init = pl050_mouse_class_init, -}; - -static void pl050_register_types(void) -{ - type_register_static(&pl050_kbd_info); - type_register_static(&pl050_mouse_info); -} - -type_init(pl050_register_types) |