-/*
+/*
* Arm PrimeCell PL050 Keyboard / Mouse Interface
*
- * Copyright (c) 2006 CodeSourcery.
+ * Copyright (c) 2006-2007 CodeSourcery.
* Written by Paul Brook
*
* This code is licenced under the GPL.
uint32_t cr;
uint32_t clk;
uint32_t last;
- void *pic;
int pending;
- int irq;
+ qemu_irq irq;
int is_mouse;
} pl050_state;
+#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 };
s->pending = level;
raise = (s->pending && (s->cr & 0x10) != 0)
|| (s->cr & 0x08) != 0;
- pic_set_irq_new(s->pic, s->irq, raise);
+ qemu_set_irq(s->irq, raise);
}
static uint32_t pl050_read(void *opaque, target_phys_addr_t offset)
case 0: /* KMICR */
return s->cr;
case 1: /* KMISTAT */
- /* KMIC and KMID bits not implemented. */
- if (s->pending) {
- return 0x10;
- } else {
- return 0;
+ {
+ 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)
pl050_write
};
-void pl050_init(uint32_t base, void *pic, int irq, int is_mouse)
+void pl050_init(uint32_t base, qemu_irq irq, int is_mouse)
{
int iomemtype;
pl050_state *s;
s = (pl050_state *)qemu_mallocz(sizeof(pl050_state));
iomemtype = cpu_register_io_memory(0, pl050_readfn,
pl050_writefn, s);
- cpu_register_physical_memory(base, 0x00000fff, iomemtype);
+ cpu_register_physical_memory(base, 0x00001000, iomemtype);
s->base = base;
- s->pic = pic;
s->irq = irq;
s->is_mouse = is_mouse;
if (is_mouse)