On 01/26/2017 10:47 AM, fred.kon...@greensocs.com wrote:
> From: KONRAD Frederic <fred.kon...@greensocs.com>
>
> This introduces a clock init array to ease the clock tree construction.
I think this belongs to the zynqmp-crf model.
Thanks,
C.
>
> Signed-off-by: KONRAD Frederic <fred.kon...@greensocs.com>
> ---
> include/qemu/qemu-clock.h | 23 +++++++++++++++++++++++
> qemu-clock.c | 17 +++++++++++++++++
> 2 files changed, 40 insertions(+)
>
> diff --git a/include/qemu/qemu-clock.h b/include/qemu/qemu-clock.h
> index 6d30299..45f8766 100644
> --- a/include/qemu/qemu-clock.h
> +++ b/include/qemu/qemu-clock.h
> @@ -49,6 +49,29 @@ struct ClkList {
> QLIST_ENTRY(ClkList) node;
> };
>
> +typedef struct ClockInitElement {
> + const char *name; /* Name to give to the clock. */
> + size_t offset; /* Offset of the qemu_clk field in the object. */
> + QEMUClkRateUpdateCallback *cb;
> +} ClockInitElement;
> +
> +#define DEVICE_CLOCK(_state, _field, _cb) {
> \
> + .name = #_field,
> \
> + .offset = offsetof(_state, _field),
> \
> + .cb = _cb
> \
> +}
> +
> +#define DEVICE_CLOCK_END() {
> \
> + .name = NULL
> \
> +}
> +
> +/**
> + * qemu_clk_init_device:
> + * @obj: the Object which need to be initialized.
> + * @array: the array of ClockInitElement to be used.
> + */
> +void qemu_clk_init_device(Object *obj, ClockInitElement *array);
> +
> /**
> * qemu_clk_device_add_clock:
> * @dev: the device on which the clock needs to be added.
> diff --git a/qemu-clock.c b/qemu-clock.c
> index 8c12368..300e38f 100644
> --- a/qemu-clock.c
> +++ b/qemu-clock.c
> @@ -26,6 +26,7 @@
> #include "hw/hw.h"
> #include "qemu/log.h"
> #include "qapi/error.h"
> +#include "hw/qdev-core.h"
>
> #ifndef DEBUG_QEMU_CLOCK
> #define DEBUG_QEMU_CLOCK 0
> @@ -37,6 +38,22 @@
> }
> \
> } while (0);
>
> +void qemu_clk_init_device(Object *obj, ClockInitElement *array)
> +{
> + qemu_clk *cur = NULL;
> +
> + while (array->name != NULL) {
> + DPRINTF("init clock named %s\n", array->name);
> + cur = (((void *)obj) + array->offset);
> + *cur = QEMU_CLOCK(object_new(TYPE_CLOCK));
> + qemu_clk_device_add_clock(DEVICE(obj), *cur, array->name);
> + if (array->cb) {
> + qemu_clk_set_callback(*cur, array->cb, obj);
> + }
> + array++;
> + }
> +}
> +
> void qemu_clk_refresh(qemu_clk clk)
> {
> qemu_clk_update_rate(clk, clk->in_rate);
>
