LEON3: implemented AMBA PnP Bus Driver for Driver Manager

2 files changed, 134 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus.h b/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus.h
new file mode 100644
index 0000000000..a1a47b1698
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus.h
@@ -0,0 +1,101 @@
+/*  General part of a AMBA Plug & Play bus driver.
+ *
+ *  COPYRIGHT (c) 2008.
+ *  Cobham Gaisler AB
+ *
+ *  This is the general part of the different AMBA Plug & Play
+ *  drivers. The drivers are wrappers around this driver, making
+ *  the code size smaller for systems with multiple AMBA Plug & 
+ *  Play buses.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#ifndef __AMBAPP_BUS_H__
+#define __AMBAPP_BUS_H__
+
+#include <drvmgr/drvmgr.h>
+#include <ambapp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* GRLIB AMBA Plug&Play Driver ID generation */
+#define DRIVER_AMBAPP_ID(vendor, device) \
+	DRIVER_ID(DRVMGR_BUS_TYPE_AMBAPP, ((((vendor) & 0xff) << 16) | ((device) & 0xfff)))
+
+struct amba_dev_id {
+	unsigned short		vendor;
+	unsigned short		device;
+	/* Version ? */
+};
+
+struct amba_drv_info {
+	struct drvmgr_drv	general;	/* General bus info */
+	/* AMBA specific bus information */
+	struct amba_dev_id		*ids;		/* Supported hardware */
+};
+
+struct amba_dev_info {
+	struct amba_dev_id	id;
+	struct ambapp_core	info;
+};
+
+struct ambapp_ops {
+	int	(*int_register)
+		(struct drvmgr_dev *dev, int index, const char *info, drvmgr_isr isr, void *arg);
+	int	(*int_unregister)
+		(struct drvmgr_dev *dev, int index, drvmgr_isr isr, void *arg);
+	int	(*int_clear)(struct drvmgr_dev *dev, int index);
+	int	(*int_mask)(struct drvmgr_dev *dev, int index);
+	int	(*int_unmask)(struct drvmgr_dev *dev, int index);
+	int	(*get_params)
+		(struct drvmgr_dev *, struct drvmgr_bus_params *);
+};
+
+struct ambapp_config {
+	struct ambapp_bus		*abus;		/* Prescanned AMBA PnP bus */
+	struct ambapp_ops		*ops;		/* AMBA bus operations */
+	struct drvmgr_map_entry		*maps_up;	/* Bus memory map up-stream towards CPU */
+	struct drvmgr_map_entry		*maps_down;	/* Bus memory map down-stream towards HW */
+	struct drvmgr_bus_res		*resources;	/* Driver Resources */
+	int				bus_type;	/* Set DRVMGR_BUS_TYPE_AMBAPP_DIST if distributed AMBA Bus */
+	struct drvmgr_func		*funcs;		/* Custom functions */
+};
+
+/*** Bus operations with READ/WRITE access operations ***
+ *
+ * The functions are implemented using the standard drvmgr RW interface
+ */
+#define AMBAPP_R8        DRVMGR_RWFUNC(RW_SIZE_1|RW_READ|RW_REG)
+#define AMBAPP_R16       DRVMGR_RWFUNC(RW_SIZE_2|RW_READ|RW_REG)
+#define AMBAPP_R32       DRVMGR_RWFUNC(RW_SIZE_4|RW_READ|RW_REG)
+#define AMBAPP_R64       DRVMGR_RWFUNC(RW_SIZE_8|RW_READ|RW_REG)
+#define AMBAPP_W8        DRVMGR_RWFUNC(RW_SIZE_1|RW_WRITE|RW_REG)
+#define AMBAPP_W16       DRVMGR_RWFUNC(RW_SIZE_2|RW_WRITE|RW_REG)
+#define AMBAPP_W32       DRVMGR_RWFUNC(RW_SIZE_4|RW_WRITE|RW_REG)
+#define AMBAPP_W64       DRVMGR_RWFUNC(RW_SIZE_8|RW_WRITE|RW_REG)
+#define AMBAPP_RMEM      DRVMGR_RWFUNC(RW_SIZE_ANY|RW_READ|RW_MEM)
+#define AMBAPP_WMEM      DRVMGR_RWFUNC(RW_SIZE_ANY|RW_WRITE|RW_MEM)
+#define AMBAPP_MEMSET    DRVMGR_RWFUNC(RW_SIZE_ANY|RW_SET|RW_MEM)
+#define AMBAPP_RW_ARG    DRVMGR_RWFUNC(RW_ARG)
+
+/* Register an ambapp bus on-top of a device */
+extern int ambapp_bus_register(
+	struct drvmgr_dev *dev,
+	struct ambapp_config *config
+	);
+
+extern void ambapp_bus_freq_register(
+	struct drvmgr_dev *dev,
+	int amba_interface,
+	unsigned int freq_hz);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus_grlib.h b/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus_grlib.h
new file mode 100644
index 0000000000..a0e0548e32
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/include/drvmgr/ambapp_bus_grlib.h
@@ -0,0 +1,33 @@
+/*  LEON3 GRLIB AMBA Plug & Play bus driver interface.
+ *
+ *  COPYRIGHT (c) 2008.
+ *  Cobham Gaisler AB.
+ *
+ *  This is driver is a wrapper for the general AMBA Plug & Play bus
+ *  driver. This is the root bus driver for GRLIB systems.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#ifndef __AMBAPP_BUS_GRLIB_H__
+#define __AMBAPP_BUS_GRLIB_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct grlib_config {
+	struct ambapp_bus	*abus;
+	struct drvmgr_bus_res	*resources;
+};
+
+/* Register GRLIB AMBA PnP Bus as root bus at driver manager */
+extern int ambapp_grlib_root_register(struct grlib_config *config);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif