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authorMarcin Bukat <marcin.bukat@gmail.com>2014-11-18 23:27:26 +0100
committerMarcin Bukat <marcin.bukat@gmail.com>2014-11-18 23:30:44 +0100
commitcd04a5f1aadc8e2ec4e787f5ba4cc8c38a579314 (patch)
tree63e9f095451aeba0139152c8742d0af67413690a /utils/hwstub/lib/hwstub.h
parent794169a18f644eea32de20b26646381137545e2d (diff)
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hwstub/qeditor: add support for atomic read/writes
The current code assumed that READ/WRITE would produce atomic read/writes for 8/16/32-bit words, which in turned put assumption on the memcpy function. Since some memcpy implementation do not always guarantee such strong assumption, introduce two new operation READ/WRITE_ATOMIC which provide the necessary tools to do correct read and write to register in a single memory access. Change-Id: I37451bd5057bb0dcaf5a800d8aef8791c792a090
Diffstat (limited to 'utils/hwstub/lib/hwstub.h')
-rw-r--r--utils/hwstub/lib/hwstub.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/utils/hwstub/lib/hwstub.h b/utils/hwstub/lib/hwstub.h
index d7d6ceb8ef..4d12de8eda 100644
--- a/utils/hwstub/lib/hwstub.h
+++ b/utils/hwstub/lib/hwstub.h
@@ -53,8 +53,11 @@ int hwstub_get_desc(struct hwstub_device_t *dev, uint16_t desc, void *info, size
int hwstub_get_log(struct hwstub_device_t *dev, void *buf, size_t sz);
/* Returns number of bytes written/read or <0 on error */
int hwstub_read(struct hwstub_device_t *dev, uint32_t addr, void *buf, size_t sz);
-int hwstub_write(struct hwstub_device_t *dev, uint32_t addr, void *buf, size_t sz);
+int hwstub_read_atomic(struct hwstub_device_t *dev, uint32_t addr, void *buf, size_t sz);
+int hwstub_write(struct hwstub_device_t *dev, uint32_t addr, const void *buf, size_t sz);
+int hwstub_write_atomic(struct hwstub_device_t *dev, uint32_t addr, const void *buf, size_t sz);
int hwstub_rw_mem(struct hwstub_device_t *dev, int read, uint32_t addr, void *buf, size_t sz);
+int hwstub_rw_mem_atomic(struct hwstub_device_t *dev, int read, uint32_t addr, void *buf, size_t sz);
/* Returns <0 on error */
int hwstub_exec(struct hwstub_device_t *dev, uint32_t addr, uint16_t flags);
int hwstub_call(struct hwstub_device_t *dev, uint32_t addr);