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[Qemu-devel] [RFC PATCH v5 06/14] register: Add block initialise helper
From: |
Peter Crosthwaite |
Subject: |
[Qemu-devel] [RFC PATCH v5 06/14] register: Add block initialise helper |
Date: |
Mon, 27 Apr 2015 14:58:01 -0700 |
Add a helper that will scan a static RegisterAccessInfo Array
and populate a container MemoryRegion with registers as defined.
Signed-off-by: Peter Crosthwaite <address@hidden>
---
hw/core/register.c | 28 ++++++++++++++++++++++++++++
include/hw/register.h | 21 +++++++++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/hw/core/register.c b/hw/core/register.c
index 000b87f..4e59122 100644
--- a/hw/core/register.c
+++ b/hw/core/register.c
@@ -255,6 +255,34 @@ uint64_t register_read_memory_le(void *opaque, hwaddr
addr, unsigned size)
return register_read_memory(opaque, addr, size, false);
}
+void register_init_block32(DeviceState *owner, const RegisterAccessInfo *rae,
+ int num, RegisterInfo *ri, uint32_t *data,
+ MemoryRegion *container, const MemoryRegionOps *ops,
+ bool debug_enabled)
+{
+ const char *debug_prefix = object_get_typename(OBJECT(owner));
+ int i;
+
+ for (i = 0; i < num; i++) {
+ int index = rae[i].decode.addr / 4;
+ RegisterInfo *r = &ri[index];
+
+ *r = (RegisterInfo) {
+ .data = &data[index],
+ .data_size = sizeof(uint32_t),
+ .access = &rae[i],
+ .debug = debug_enabled,
+ .prefix = debug_prefix,
+ .opaque = owner,
+ };
+ register_init(r);
+
+ memory_region_init_io(&r->mem, OBJECT(owner), ops, r, r->access->name,
+ sizeof(uint32_t));
+ memory_region_add_subregion(container, r->access->decode.addr,
&r->mem);
+ }
+}
+
static const TypeInfo register_info = {
.name = TYPE_REGISTER,
.parent = TYPE_DEVICE,
diff --git a/include/hw/register.h b/include/hw/register.h
index a3d3f60..7b6f732 100644
--- a/include/hw/register.h
+++ b/include/hw/register.h
@@ -186,6 +186,27 @@ void register_write_memory_le(void *opaque, hwaddr addr,
uint64_t value,
uint64_t register_read_memory_be(void *opaque, hwaddr addr, unsigned size);
uint64_t register_read_memory_le(void *opaque, hwaddr addr, unsigned size);
+/**
+ * Init a block of consecutive registers into a container MemoryRegion. A
+ * number of constant register definitions are parsed to create a corresponding
+ * array of RegisterInfo's.
+ *
+ * @owner: device owning the registers
+ * @rae: Register definitions to init
+ * @num: number of registers to init (length of @rae)
+ * @ri: Register array to init
+ * @data: Array to use for register data
+ * @container: Memory region to contain new registers
+ * @ops: Memory region ops to use to access registers. Opaque data of handler
+ * with be a RegisterInfo * (from @ri)
+ * @debug enabled: turn on/off verbose debug information
+ */
+
+void register_init_block32(DeviceState *owner, const RegisterAccessInfo *rae,
+ int num, RegisterInfo *ri, uint32_t *data,
+ MemoryRegion *container, const MemoryRegionOps *ops,
+ bool debug_enabled);
+
/* Define constants for a 32 bit register */
#define REG32(reg, addr) \
--
2.3.6.3.g2cc70ee
- [Qemu-devel] [RFC PATCH v5 00/14] data-driven device registers, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 03/14] register: Add support for decoding information, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 02/14] register: Add Memory API glue, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 07/14] bitops: Add ONES macro, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 06/14] register: Add block initialise helper,
Peter Crosthwaite <=
- [Qemu-devel] [RFC PATCH v5 05/14] register: QOMify, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 01/14] register: Add Register API, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 04/14] register: Define REG and FIELD macros, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 14/14] misc: Introduce ZynqMP IOU SLCR, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 08/14] dma: Add Xilinx Zynq devcfg device model, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 12/14] irq: Add opaque setter routine, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 13/14] register: Add GPIO API, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 10/14] qdev: Define qdev_get_gpio_out, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 09/14] xilinx_zynq: add devcfg to machine model, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 11/14] qdev: Add qdev_pass_all_gpios API, Peter Crosthwaite, 2015/04/27