diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/pl061.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/pl061.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,313 @@
+/*
+ * Arm PrimeCell PL061 General Purpose IO with additional
+ * Luminary Micro Stellaris bits.
+ *
+ * Copyright (c) 2007 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licenced under the GPL.
+ */
+
+#include "hw.h"
+#include "primecell.h"
+
+//#define DEBUG_PL061 1
+
+#ifdef DEBUG_PL061
+#define DPRINTF(fmt, args...) \
+do { printf("pl061: " fmt , ##args); } while (0)
+#define BADF(fmt, args...) \
+do { fprintf(stderr, "pl061: error: " fmt , ##args); exit(1);} while (0)
+#else
+#define DPRINTF(fmt, args...) do {} while(0)
+#define BADF(fmt, args...) \
+do { fprintf(stderr, "pl061: error: " fmt , ##args);} while (0)
+#endif
+
+static const uint8_t pl061_id[12] =
+  { 0x00, 0x00, 0x00, 0x00, 0x61, 0x00, 0x18, 0x01, 0x0d, 0xf0, 0x05, 0xb1 };
+
+typedef struct {
+    int locked;
+    uint8_t data;
+    uint8_t old_data;
+    uint8_t dir;
+    uint8_t isense;
+    uint8_t ibe;
+    uint8_t iev;
+    uint8_t im;
+    uint8_t istate;
+    uint8_t afsel;
+    uint8_t dr2r;
+    uint8_t dr4r;
+    uint8_t dr8r;
+    uint8_t odr;
+    uint8_t pur;
+    uint8_t pdr;
+    uint8_t slr;
+    uint8_t den;
+    uint8_t cr;
+    uint8_t float_high;
+    qemu_irq irq;
+    qemu_irq out[8];
+} pl061_state;
+
+static void pl061_update(pl061_state *s)
+{
+    uint8_t changed;
+    uint8_t mask;
+    uint8_t out;
+    int i;
+
+    /* Outputs float high.  */
+    /* FIXME: This is board dependent.  */
+    out = (s->data & s->dir) | ~s->dir;
+    changed = s->old_data ^ out;
+    if (!changed)
+        return;
+
+    s->old_data = out;
+    for (i = 0; i < 8; i++) {
+        mask = 1 << i;
+        if ((changed & mask) && s->out) {
+            DPRINTF("Set output %d = %d\n", i, (out & mask) != 0);
+            qemu_set_irq(s->out[i], (out & mask) != 0);
+        }
+    }
+
+    /* FIXME: Implement input interrupts.  */
+}
+
+static uint32_t pl061_read(void *opaque, target_phys_addr_t offset)
+{
+    pl061_state *s = (pl061_state *)opaque;
+
+    if (offset >= 0xfd0 && offset < 0x1000) {
+        return pl061_id[(offset - 0xfd0) >> 2];
+    }
+    if (offset < 0x400) {
+        return s->data & (offset >> 2);
+    }
+    switch (offset) {
+    case 0x400: /* Direction */
+        return s->dir;
+    case 0x404: /* Interrupt sense */
+        return s->isense;
+    case 0x408: /* Interrupt both edges */
+        return s->ibe;
+    case 0x40c: /* Interupt event */
+        return s->iev;
+    case 0x410: /* Interrupt mask */
+        return s->im;
+    case 0x414: /* Raw interrupt status */
+        return s->istate;
+    case 0x418: /* Masked interrupt status */
+        return s->istate | s->im;
+    case 0x420: /* Alternate function select */
+        return s->afsel;
+    case 0x500: /* 2mA drive */
+        return s->dr2r;
+    case 0x504: /* 4mA drive */
+        return s->dr4r;
+    case 0x508: /* 8mA drive */
+        return s->dr8r;
+    case 0x50c: /* Open drain */
+        return s->odr;
+    case 0x510: /* Pull-up */
+        return s->pur;
+    case 0x514: /* Pull-down */
+        return s->pdr;
+    case 0x518: /* Slew rate control */
+        return s->slr;
+    case 0x51c: /* Digital enable */
+        return s->den;
+    case 0x520: /* Lock */
+        return s->locked;
+    case 0x524: /* Commit */
+        return s->cr;
+    default:
+        cpu_abort (cpu_single_env, "pl061_read: Bad offset %x\n",
+                   (int)offset);
+        return 0;
+    }
+}
+
+static void pl061_write(void *opaque, target_phys_addr_t offset,
+                        uint32_t value)
+{
+    pl061_state *s = (pl061_state *)opaque;
+    uint8_t mask;
+
+    if (offset < 0x400) {
+        mask = (offset >> 2) & s->dir;
+        s->data = (s->data & ~mask) | (value & mask);
+        pl061_update(s);
+        return;
+    }
+    switch (offset) {
+    case 0x400: /* Direction */
+        s->dir = value;
+        break;
+    case 0x404: /* Interrupt sense */
+        s->isense = value;
+        break;
+    case 0x408: /* Interrupt both edges */
+        s->ibe = value;
+        break;
+    case 0x40c: /* Interupt event */
+        s->iev = value;
+        break;
+    case 0x410: /* Interrupt mask */
+        s->im = value;
+        break;
+    case 0x41c: /* Interrupt clear */
+        s->istate &= ~value;
+        break;
+    case 0x420: /* Alternate function select */
+        mask = s->cr;
+        s->afsel = (s->afsel & ~mask) | (value & mask);
+        break;
+    case 0x500: /* 2mA drive */
+        s->dr2r = value;
+        break;
+    case 0x504: /* 4mA drive */
+        s->dr4r = value;
+        break;
+    case 0x508: /* 8mA drive */
+        s->dr8r = value;
+        break;
+    case 0x50c: /* Open drain */
+        s->odr = value;
+        break;
+    case 0x510: /* Pull-up */
+        s->pur = value;
+        break;
+    case 0x514: /* Pull-down */
+        s->pdr = value;
+        break;
+    case 0x518: /* Slew rate control */
+        s->slr = value;
+        break;
+    case 0x51c: /* Digital enable */
+        s->den = value;
+        break;
+    case 0x520: /* Lock */
+        s->locked = (value != 0xacce551);
+        break;
+    case 0x524: /* Commit */
+        if (!s->locked)
+            s->cr = value;
+        break;
+    default:
+        cpu_abort (cpu_single_env, "pl061_write: Bad offset %x\n",
+                   (int)offset);
+    }
+    pl061_update(s);
+}
+
+static void pl061_reset(pl061_state *s)
+{
+  s->locked = 1;
+  s->cr = 0xff;
+}
+
+static void pl061_set_irq(void * opaque, int irq, int level)
+{
+    pl061_state *s = (pl061_state *)opaque;
+    uint8_t mask;
+
+    mask = 1 << irq;
+    if ((s->dir & mask) == 0) {
+        s->data &= ~mask;
+        if (level)
+            s->data |= mask;
+        pl061_update(s);
+    }
+}
+
+static CPUReadMemoryFunc *pl061_readfn[] = {
+   pl061_read,
+   pl061_read,
+   pl061_read
+};
+
+static CPUWriteMemoryFunc *pl061_writefn[] = {
+   pl061_write,
+   pl061_write,
+   pl061_write
+};
+
+static void pl061_save(QEMUFile *f, void *opaque)
+{
+    pl061_state *s = (pl061_state *)opaque;
+
+    qemu_put_be32(f, s->locked);
+    qemu_put_be32(f, s->data);
+    qemu_put_be32(f, s->old_data);
+    qemu_put_be32(f, s->dir);
+    qemu_put_be32(f, s->isense);
+    qemu_put_be32(f, s->ibe);
+    qemu_put_be32(f, s->iev);
+    qemu_put_be32(f, s->im);
+    qemu_put_be32(f, s->istate);
+    qemu_put_be32(f, s->afsel);
+    qemu_put_be32(f, s->dr2r);
+    qemu_put_be32(f, s->dr4r);
+    qemu_put_be32(f, s->dr8r);
+    qemu_put_be32(f, s->odr);
+    qemu_put_be32(f, s->pur);
+    qemu_put_be32(f, s->pdr);
+    qemu_put_be32(f, s->slr);
+    qemu_put_be32(f, s->den);
+    qemu_put_be32(f, s->cr);
+    qemu_put_be32(f, s->float_high);
+}
+
+static int pl061_load(QEMUFile *f, void *opaque, int version_id)
+{
+    pl061_state *s = (pl061_state *)opaque;
+    if (version_id != 1)
+        return -EINVAL;
+
+    s->locked = qemu_get_be32(f);
+    s->data = qemu_get_be32(f);
+    s->old_data = qemu_get_be32(f);
+    s->dir = qemu_get_be32(f);
+    s->isense = qemu_get_be32(f);
+    s->ibe = qemu_get_be32(f);
+    s->iev = qemu_get_be32(f);
+    s->im = qemu_get_be32(f);
+    s->istate = qemu_get_be32(f);
+    s->afsel = qemu_get_be32(f);
+    s->dr2r = qemu_get_be32(f);
+    s->dr4r = qemu_get_be32(f);
+    s->dr8r = qemu_get_be32(f);
+    s->odr = qemu_get_be32(f);
+    s->pur = qemu_get_be32(f);
+    s->pdr = qemu_get_be32(f);
+    s->slr = qemu_get_be32(f);
+    s->den = qemu_get_be32(f);
+    s->cr = qemu_get_be32(f);
+    s->float_high = qemu_get_be32(f);
+
+    return 0;
+}
+
+/* Returns an array of inputs.  */
+qemu_irq *pl061_init(uint32_t base, qemu_irq irq, qemu_irq **out)
+{
+    int iomemtype;
+    pl061_state *s;
+
+    s = (pl061_state *)qemu_mallocz(sizeof(pl061_state));
+    iomemtype = cpu_register_io_memory(0, pl061_readfn,
+                                       pl061_writefn, s);
+    cpu_register_physical_memory(base, 0x00001000, iomemtype);
+    s->irq = irq;
+    pl061_reset(s);
+    if (out)
+        *out = s->out;
+
+    register_savevm("pl061_gpio", -1, 1, pl061_save, pl061_load, s);
+    return qemu_allocate_irqs(pl061_set_irq, s, 8);
+}