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 | 22 ++++++++++++++++++++++ 2 files changed, 45 insertions(+), 1 deletion(-) diff --git a/include/qemu/qemu-clock.h b/include/qemu/qemu-clock.h index e7acd68..a2ba105 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: + * @d: 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 @d. + * + */ +void qemu_clk_attach_to_device(DeviceState *d, qemu_clk clk, + const char *name); +/** + * qemu_clk_get_pin: + * @d: the device which contain the clock. + * @name: the name of the clock. + * + * Get the clock named @name located in the device @d, or NULL if not found. + * + * Returns the clock named @name contained in @d. + */ +qemu_clk qemu_clk_get_pin(DeviceState *d, const char *name); +#endif /* QEMU_CLOCK_H */ diff --git a/qemu-clock.c b/qemu-clock.c index 4a47fb4..81f2852 100644 --- a/qemu-clock.c +++ b/qemu-clock.c @@ -23,6 +23,7 @@ #include "qemu/qemu-clock.h" #include "hw/hw.h" +#include "qapi/error.h" /* #define DEBUG_QEMU_CLOCK */ @@ -33,6 +34,27 @@ do { printf("qemu-clock: " fmt , ## __VA_ARGS__); } while (0) #define DPRINTF(fmt, ...) do { } while (0) #endif +void qemu_clk_attach_to_device(DeviceState *d, qemu_clk clk, const char *name) +{ + assert(name); + assert(!clk->name); + object_property_add_child(OBJECT(d), name, OBJECT(clk), &error_abort); + clk->name = g_strdup(name); +} + +qemu_clk qemu_clk_get_pin(DeviceState *d, const char *name) +{ + gchar *path = NULL; + Object *clk; + bool ambiguous; + + path = g_strdup_printf("%s/%s", object_get_canonical_path(OBJECT(d)), + 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