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[Qemu-devel] [RFC PATCH 02/11] qemu-clk: allow to attach a clock to a de
From: |
fred . konrad |
Subject: |
[Qemu-devel] [RFC PATCH 02/11] qemu-clk: allow to attach a clock to a device |
Date: |
Mon, 13 Jun 2016 18:27:30 +0200 |
From: KONRAD Frederic <address@hidden>
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 <address@hidden>
---
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
- [Qemu-devel] [RFC PATCH 00/11] Clock framework API., fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 01/11] qemu-clk: introduce qemu-clk qom object, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 06/11] introduce fixed-clock, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 04/11] qdev-monitor: print the device's clock with info qtree, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 05/11] docs: add qemu-clock documentation, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 02/11] qemu-clk: allow to attach a clock to a device,
fred . konrad <=
- [Qemu-devel] [RFC PATCH 08/11] zynqmp_crf: fix against AF_EX32 changes, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 07/11] introduce zynqmp_crf, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 03/11] qemu-clk: allow to bound two clocks together, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 10/11] zynqmp: add the zynqmp_crf to the platform, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 09/11] zynqmp_crf: add the clock mechanism, fred . konrad, 2016/06/13
- [Qemu-devel] [RFC PATCH 11/11] zynqmp: add reference clock, fred . konrad, 2016/06/13