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authorIngo Molnar <mingo@elte.hu>2009-06-17 12:52:15 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-17 12:56:49 +0200
commiteadb8a091b27a840de7450f84ecff5ef13476424 (patch)
tree58c3782d40def63baa8167f3d31e3048cb4c7660 /sound/pci/ctxfi/ctresource.h
parenthw-breakpoints: fix undeclared ksym_tracer_mutex (diff)
parentMerge branch 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux (diff)
downloadlinux-eadb8a091b27a840de7450f84ecff5ef13476424.tar.xz
linux-eadb8a091b27a840de7450f84ecff5ef13476424.zip
Merge branch 'linus' into tracing/hw-breakpoints
Conflicts: arch/x86/Kconfig arch/x86/kernel/traps.c arch/x86/power/cpu.c arch/x86/power/cpu_32.c kernel/Makefile Semantic conflict: arch/x86/kernel/hw_breakpoint.c Merge reason: Resolve the conflicts, move from put_cpu_no_sched() to put_cpu() in arch/x86/kernel/hw_breakpoint.c. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'sound/pci/ctxfi/ctresource.h')
-rw-r--r--sound/pci/ctxfi/ctresource.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/sound/pci/ctxfi/ctresource.h b/sound/pci/ctxfi/ctresource.h
new file mode 100644
index 000000000000..0838c2e84f8b
--- /dev/null
+++ b/sound/pci/ctxfi/ctresource.h
@@ -0,0 +1,72 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File ctresource.h
+ *
+ * @Brief
+ * This file contains the definition of generic hardware resources for
+ * resource management.
+ *
+ * @Author Liu Chun
+ * @Date May 13 2008
+ *
+ */
+
+#ifndef CTRESOURCE_H
+#define CTRESOURCE_H
+
+#include <linux/types.h>
+
+enum RSCTYP {
+ SRC,
+ SRCIMP,
+ AMIXER,
+ SUM,
+ DAIO,
+ NUM_RSCTYP /* This must be the last one and less than 16 */
+};
+
+struct rsc_ops;
+
+struct rsc {
+ u32 idx:12; /* The index of a resource */
+ u32 type:4; /* The type (RSCTYP) of a resource */
+ u32 conj:12; /* Current conjugate index */
+ u32 msr:4; /* The Master Sample Rate a resource working on */
+ void *ctrl_blk; /* Chip specific control info block for a resource */
+ void *hw; /* Chip specific object for hardware access means */
+ struct rsc_ops *ops; /* Generic resource operations */
+};
+
+struct rsc_ops {
+ int (*master)(struct rsc *rsc); /* Move to master resource */
+ int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
+ int (*index)(const struct rsc *rsc); /* Return the index of resource */
+ /* Return the output slot number */
+ int (*output_slot)(const struct rsc *rsc);
+};
+
+int rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, void *hw);
+int rsc_uninit(struct rsc *rsc);
+
+struct rsc_mgr {
+ enum RSCTYP type; /* The type (RSCTYP) of resource to manage */
+ unsigned int amount; /* The total amount of a kind of resource */
+ unsigned int avail; /* The amount of currently available resources */
+ unsigned char *rscs; /* The bit-map for resource allocation */
+ void *ctrl_blk; /* Chip specific control info block */
+ void *hw; /* Chip specific object for hardware access */
+};
+
+/* Resource management is based on bit-map mechanism */
+int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
+ unsigned int amount, void *hw);
+int rsc_mgr_uninit(struct rsc_mgr *mgr);
+int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx);
+int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx);
+
+#endif /* CTRESOURCE_H */