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authorBrian Swetland <swetland@google.com>2008-09-10 23:58:25 +0200
committerBrian Swetland <swetland@google.com>2008-10-22 11:41:00 +0200
commit8a0f6f17c43933a4768ab79b9ac3ad24cd3c2c3f (patch)
tree3768860bbca3d9bc25ddaab987aedd88a901d7fe /arch/arm/mach-msm/include/mach
parent[ARM] msm: clock: provide clk_*() api support for (diff)
downloadlinux-8a0f6f17c43933a4768ab79b9ac3ad24cd3c2c3f.tar.xz
linux-8a0f6f17c43933a4768ab79b9ac3ad24cd3c2c3f.zip
[ARM] msm: dma: various basic dma improvements and bugfixes
San: - Propagate DM errors to the originator of the request. - Implement msm_dmov_stop_cmd() - Add return value to init code - Modify msm_dmov_stop_cmd() to support ungraceful flushing Arve: - Disable datamover interrupt when not in use. We turn off the interrrupt to allow power collapse from idle. Signed-off-by: San Mehat <san@android.com> Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Brian Swetland <swetland@google.com>
Diffstat (limited to 'arch/arm/mach-msm/include/mach')
-rw-r--r--arch/arm/mach-msm/include/mach/dma.h24
1 files changed, 19 insertions, 5 deletions
diff --git a/arch/arm/mach-msm/include/mach/dma.h b/arch/arm/mach-msm/include/mach/dma.h
index ad1c87f86d10..5ab5bdffab07 100644
--- a/arch/arm/mach-msm/include/mach/dma.h
+++ b/arch/arm/mach-msm/include/mach/dma.h
@@ -1,4 +1,4 @@
-/* arch/arm/mach-msm/include/mach/dma.h
+/* linux/include/asm-arm/arch-msm/dma.h
*
* Copyright (C) 2007 Google, Inc.
*
@@ -18,17 +18,21 @@
#include <linux/list.h>
#include <mach/msm_iomap.h>
+struct msm_dmov_errdata {
+ uint32_t flush[6];
+};
+
struct msm_dmov_cmd {
struct list_head list;
unsigned int cmdptr;
- void (*complete_func)(struct msm_dmov_cmd *cmd, unsigned int result);
-/* void (*user_result_func)(struct msm_dmov_cmd *cmd); */
+ void (*complete_func)(struct msm_dmov_cmd *cmd,
+ unsigned int result,
+ struct msm_dmov_errdata *err);
};
void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd);
-void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd);
+void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful);
int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr);
-/* int msm_dmov_exec_cmd_etc(unsigned id, unsigned int cmdptr, int timeout, int interruptible); */
@@ -122,6 +126,16 @@ typedef struct {
unsigned _reserved;
} dmov_sg;
+/* Box mode */
+typedef struct {
+ uint32_t cmd;
+ uint32_t src_row_addr;
+ uint32_t dst_row_addr;
+ uint32_t src_dst_len;
+ uint32_t num_rows;
+ uint32_t row_offset;
+} dmov_box;
+
/* bits for the cmd field of the above structures */
#define CMD_LC (1 << 31) /* last command */