static int i2c_bus_fdt_init(char *node_path, FDTMachineInfo *fdti, void *priv)
{
Object *parent;
DeviceState *dev;
char parent_node_path[DT_PATH_LENGTH];
char *node_name = qemu_devtree_get_node_name(fdti->fdt, node_path);
DB_PRINT_NP(1, "\n");
/* FIXME: share this code with fdt_generic_util.c/fdt_init_qdev() */
if (qemu_devtree_getparent(fdti->fdt, parent_node_path, node_path)) {
abort();
}
while (!fdt_init_has_opaque(fdti, parent_node_path)) {
fdt_init_yield(fdti);
}
parent = fdt_init_get_opaque(fdti, parent_node_path);
dev = (DeviceState *)object_dynamic_cast(parent, TYPE_DEVICE);
if (parent && dev) {
while (!dev->realized) {
fdt_init_yield(fdti);
}
DB_PRINT_NP(0, "parenting i2c bus to %s bus %s\n", parent_node_path,
node_name);
fdt_init_set_opaque(fdti, node_path,
qdev_get_child_bus(dev, node_name));
} else {
DB_PRINT_NP(0, "orphaning i2c bus\n");
}
return 0;
}
qemu_irq fdt_get_irq_info(FDTMachineInfo *fdti, char *node_path, int irq_idx,
int *err, char *info) {
void *fdt = fdti->fdt;
int intc_phandle, intc_cells, idx, errl;
char intc_node_path[DT_PATH_LENGTH];
Error *errp = NULL;
DeviceState *intc;
if (!err) {
err = &errl;
}
intc_phandle = qemu_fdt_getprop_cell(fdt, node_path, "interrupt-parent",
0, true, &errp);
if (errp) {
goto fail;
}
if (qemu_fdt_get_node_by_phandle(fdt, intc_node_path, intc_phandle)) {
goto fail;
}
intc_cells = qemu_fdt_getprop_cell(fdt, intc_node_path,
"#interrupt-cells", 0, false, &errp);
if (errp) {
goto fail;
}
idx = qemu_fdt_getprop_cell(fdt, node_path, "interrupts",
intc_cells * irq_idx, false, &errp);
if (errp) {
goto fail;
}
while (!fdt_init_has_opaque(fdti, intc_node_path)) {
fdt_init_yield(fdti);
}
intc = DEVICE(fdt_init_get_opaque(fdti, intc_node_path));
if (!intc) {
goto fail;
}
if (info) {
char *node_name = qemu_fdt_get_node_name(fdt, intc_node_path);
sprintf(info, "%d (%s)", idx, node_name);
g_free((void *)node_name);
}
*err = 0;
return qdev_get_gpio_in(intc, idx);
fail:
*err = 1;
if (info) {
sprintf(info, "(none)");
}
return NULL;
}
static int fdt_init_qdev(char *node_path, FDTMachineInfo *fdti, char *compat)
{
int err;
qemu_irq irq;
hwaddr base;
int offset;
DeviceState *dev;
char *dev_type = NULL;
int is_intc;
int i;
dev = fdt_create_qdev_from_compat(compat, &dev_type);
if (!dev) {
DB_PRINT("no match found for %s\n", compat);
return 1;
}
/* FIXME: attach to the sysbus instead */
object_property_add_child(container_get(qdev_get_machine(), "/unattached"),
qemu_fdt_get_node_name(fdti->fdt, node_path),
OBJECT(dev), NULL);
fdt_init_set_opaque(fdti, node_path, dev);
/* connect nic if appropriate */
static int nics;
if (object_property_find(OBJECT(dev), "mac", NULL)) {
qdev_set_nic_properties(dev, &nd_table[nics]);
if (nd_table[nics].instantiated) {
DB_PRINT("NIC instantiated: %s\n", dev_type);
nics++;
}
}
offset = fdt_path_offset(fdti->fdt, node_path);
for (offset = fdt_first_property_offset(fdti->fdt, offset);
offset != -FDT_ERR_NOTFOUND;
offset = fdt_next_property_offset(fdti->fdt, offset)) {
const char *propname;
int len;
const void *val = fdt_getprop_by_offset(fdti->fdt, offset,
&propname, &len);
propname = trim_vendor(propname);
ObjectProperty *p = object_property_find(OBJECT(dev), propname, NULL);
if (p) {
DB_PRINT("matched property: %s of type %s, len %d\n",
propname, p->type, len);
}
if (!p) {
continue;
}
/* FIXME: handle generically using accessors and stuff */
if (!strcmp(p->type, "uint8") || !strcmp(p->type, "uint16") ||
!strcmp(p->type, "uint32") || !strcmp(p->type, "uint64")) {
uint64_t offset = (!strcmp(propname, "reg")) ?
fdt_get_parent_base(node_path, fdti) : 0;
object_property_set_int(OBJECT(dev), get_int_be(val, len) + offset,
propname, &error_abort);
DB_PRINT("set property %s to %#llx\n", propname,
(long long unsigned int)get_int_be(val, len));
} else if (!strcmp(p->type, "bool")) {
object_property_set_bool(OBJECT(dev), !!get_int_be(val, len),
propname, &error_abort);
DB_PRINT("set property %s to %#llx\n", propname,
(long long unsigned int)get_int_be(val, len));
} else if (!strncmp(p->type, "link", 4)) {
char target_node_path[DT_PATH_LENGTH];
DeviceState *linked_dev;
if (qemu_fdt_get_node_by_phandle(fdti->fdt, target_node_path,
get_int_be(val, len))) {
abort();
}
while (!fdt_init_has_opaque(fdti, target_node_path)) {
fdt_init_yield(fdti);
}
linked_dev = fdt_init_get_opaque(fdti, target_node_path);
object_property_set_link(OBJECT(dev), OBJECT(linked_dev), propname,
&error_abort);
} else if (!strcmp(p->type, "string")) {
object_property_set_str(OBJECT(dev), strndup(val, len), propname, &error_abort);
}
}
qdev_init_nofail(dev);
/* map slave attachment */
base = qemu_fdt_getprop_cell(fdti->fdt, node_path, "reg", 0, false, &error_abort);
base += fdt_get_parent_base(node_path, fdti);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
{
int len;
fdt_get_property(fdti->fdt, fdt_path_offset(fdti->fdt, node_path),
"interrupt-controller", &len);
is_intc = len >= 0;
DB_PRINT("is interrupt controller: %c\n", is_intc ? 'y' : 'n');
}
/* connect irq */
for (i = 0; ; ++i) {
char irq_info[1024];
irq = fdt_get_irq_info(fdti, node_path, i, &err, irq_info);
/* INTCs inferr their top level, if no IRQ connection specified */
if (err && is_intc) {
irq = fdti->irq_base;
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq);
fprintf(stderr, "FDT: (%s) connected top level irq %s\n", dev_type,
irq_info);
break;
}
if (!err) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
fprintf(stderr, "FDT: (%s) connected irq %s\n", dev_type, irq_info);
} else {
break;
}
}
if (dev_type) {
g_free(dev_type);
}
return 0;
}
static qemu_irq fdt_get_gpio(FDTMachineInfo *fdti, char *node_path,
int* cur_cell, qemu_irq input,
const FDTGenericGPIOSet *gpio_set,
const char *debug_success, bool *end) {
void *fdt = fdti->fdt;
uint32_t parent_phandle, parent_cells = 0, cells[32];
char parent_node_path[DT_PATH_LENGTH];
DeviceState *parent;
int i;
Error *errp = NULL;
const char *reason;
bool free_reason = false;
const char *propname = gpio_set->names->propname;
const char *cells_propname = gpio_set->names->cells_propname;
cells[0] = 0;
parent_phandle = qemu_fdt_getprop_cell(fdt, node_path, propname,
(*cur_cell)++, false, &errp);
if (errp) {
reason = g_strdup_printf("Cant get phandle from \"%s\" property\n",
propname);
*end = true;
free_reason = true;
goto fail_silent;
}
if (qemu_devtree_get_node_by_phandle(fdt, parent_node_path,
parent_phandle)) {
*end = true;
reason = "cant get node from phandle\n";
goto fail;
}
parent_cells = qemu_fdt_getprop_cell(fdt, parent_node_path,
cells_propname, 0, false, &errp);
if (errp) {
*end = true;
reason = g_strdup_printf("cant get the property \"%s\" from the " \
"parent \"%s\"\n",
cells_propname, parent_node_path);
free_reason = true;
goto fail;
}
for (i = 0; i < parent_cells; ++i) {
cells[i] = qemu_fdt_getprop_cell(fdt, node_path, propname,
(*cur_cell)++, false, &errp);
if (errp) {
*end = true;
reason = "cant get cell value";
goto fail;
}
}
while (!fdt_init_has_opaque(fdti, parent_node_path)) {
fdt_init_yield(fdti);
}
parent = DEVICE(fdt_init_get_opaque(fdti, parent_node_path));
if (!parent) {
reason = "parent is not a device";
goto fail_silent;
}
while (!parent->realized) {
fdt_init_yield(fdti);
}
{
const FDTGenericGPIOConnection *fgg_con = NULL;
uint16_t range, idx;
const char *gpio_name = NULL;
qemu_irq ret;
if (object_dynamic_cast(OBJECT(parent), TYPE_FDT_GENERIC_GPIO)) {
const FDTGenericGPIOSet *set;
FDTGenericGPIOClass *parent_fggc =
FDT_GENERIC_GPIO_GET_CLASS(parent);
for (set = parent_fggc->controller_gpios; set && set->names;
set++) {
if (!strcmp(gpio_set->names->cells_propname,
set->names->cells_propname)) {
fgg_con = set->gpios;
break;
}
}
}
/* FIXME: cells[0] is not always the fdt indexing match system */
idx = cells[0] & ~(1ul << 31);
if (fgg_con) {
range = fgg_con->range ? fgg_con->range : 1;
while (!(idx >= fgg_con->fdt_index
&& idx < (fgg_con->fdt_index + range))
&& fgg_con->name) {
fgg_con++;
}
if (!fgg_con) {
goto fail;
}
idx -= fgg_con->fdt_index;
gpio_name = fgg_con->name;
}
if (input) {
FDTIRQConnection *irq = g_new0(FDTIRQConnection, 1);
bool (*merge_fn)(bool *, int) = qemu_irq_shared_or_handler;
/* FIXME: I am kind of stealing here. Use the msb of the first
* cell to indicate the merge function. This needs to be discussed
* with device-tree community on how this should be done properly.
*/
if (cells[0] & (1 << 31)) {
merge_fn = qemu_irq_shared_and_handler;
}
DB_PRINT_NP(1, "%s GPIO output %s[%d] on %s\n", debug_success,
gpio_name ? gpio_name : "unnamed", idx,
parent_node_path);
*irq = (FDTIRQConnection) {
.dev = parent,
.name = gpio_name,
.merge_fn = merge_fn,
.i = idx,
.irq = input,
.sink_info = NULL, /* FIMXE */
.next = fdti->irqs
};
fdti->irqs = irq;
}
ret = qdev_get_gpio_in_named(parent, gpio_name, idx);
if (ret) {
DB_PRINT_NP(1, "wiring GPIO input %s on %s ... \n",
fgg_con ? fgg_con->name : "unnamed", parent_node_path);
}
return ret;
}
fail:
fprintf(stderr, "%s Failed: %s\n", node_path, reason);
fail_silent:
if (free_reason) {
g_free((void *)reason);
}
return NULL;
}
static void fdt_get_irq_info_from_intc(FDTMachineInfo *fdti, qemu_irq *ret,
char *intc_node_path,
uint32_t *cells, uint32_t num_cells,
uint32_t max, Error **errp)
{
FDTGenericIntcClass *intc_fdt_class;
DeviceState *intc;
while (!fdt_init_has_opaque(fdti, intc_node_path)) {
fdt_init_yield(fdti);
}
intc = DEVICE(fdt_init_get_opaque(fdti, intc_node_path));
if (!intc) {
goto fail;
}
while (!intc->realized) {
fdt_init_yield(fdti);
}
intc_fdt_class = FDT_GENERIC_INTC_GET_CLASS(intc);
if (!intc_fdt_class) {
goto fail;
}
intc_fdt_class->get_irq(FDT_GENERIC_INTC(intc), ret, cells, num_cells,
max, errp);
return;
fail:
error_setg(errp, "%s", __func__);
}
