From: KONRAD Frederic <fred.kon...@greensocs.com> This allows to attach a clock to a DeviceState. Contrary to gpios, the clock pins are not contained in the DeviceState but with the child property so they can appears in the qom-tree.
Signed-off-by: KONRAD Frederic <fred.kon...@greensocs.com> --- include/qemu/qemu-clock.h | 24 +++++++++++++++++++++++- qemu-clock.c | 23 +++++++++++++++++++++++ 2 files changed, 46 insertions(+), 1 deletion(-) diff --git a/include/qemu/qemu-clock.h b/include/qemu/qemu-clock.h index e7acd68..1d56a2e 100644 --- a/include/qemu/qemu-clock.h +++ b/include/qemu/qemu-clock.h @@ -33,8 +33,30 @@ typedef struct qemu_clk { /*< private >*/ Object parent_obj; + char *name; /* name of this clock in the device. */ } *qemu_clk; -#endif /* QEMU_CLOCK_H */ +/** + * qemu_clk_attach_to_device: + * @dev: the device on which the clock need to be attached. + * @clk: the clock which need to be attached. + * @name: the name of the clock can't be NULL. + * + * Attach @clk named @name to the device @dev. + * + */ +void qemu_clk_attach_to_device(DeviceState *dev, qemu_clk clk, + const char *name); +/** + * qemu_clk_get_pin: + * @dev: the device which contain the clock. + * @name: the name of the clock. + * + * Get the clock named @name located in the device @dev, or NULL if not found. + * + * Returns the clock named @name contained in @dev. + */ +qemu_clk qemu_clk_get_pin(DeviceState *dev, const char *name); +#endif /* QEMU_CLOCK_H */ diff --git a/qemu-clock.c b/qemu-clock.c index ceea98d..0ba6caf 100644 --- a/qemu-clock.c +++ b/qemu-clock.c @@ -25,6 +25,7 @@ #include "qemu/qemu-clock.h" #include "hw/hw.h" #include "qemu/log.h" +#include "qapi/error.h" #ifndef DEBUG_QEMU_CLOCK #define DEBUG_QEMU_CLOCK 0 @@ -36,6 +37,28 @@ } \ } while (0); +void qemu_clk_attach_to_device(DeviceState *dev, qemu_clk clk, + const char *name) +{ + assert(name); + assert(!clk->name); + object_property_add_child(OBJECT(dev), name, OBJECT(clk), &error_abort); + clk->name = g_strdup(name); +} + +qemu_clk qemu_clk_get_pin(DeviceState *dev, const char *name) +{ + gchar *path = NULL; + Object *clk; + bool ambiguous; + + path = g_strdup_printf("%s/%s", object_get_canonical_path(OBJECT(dev)), + name); + clk = object_resolve_path(path, &ambiguous); + g_free(path); + return QEMU_CLOCK(clk); +} + static const TypeInfo qemu_clk_info = { .name = TYPE_CLOCK, .parent = TYPE_OBJECT, -- 2.5.5