Mmap wrapper#1
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The trace data in this example can be decoded successfully. Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
The channels 0~15 on Juno-r0 seem not permitted to be writen, this patch also change the start channel of mmap from 0 to 32768. The STM channel management policy will allocate the channels automatically from all unused channels. So if we want to mmap from a non-zero channel, we have to config the channel range manually, like below: / # mkdir /config/stp-policy/20100000.stm.abc / # mkdir /config/stp-policy/20100000.stm.abc/test / # echo 32768 65535 > config/stp-policy/20100000.stm.abc/test/channels Here '32768' is just the channel number from which we want to mmap STM stimulus space; 'test' is the policy name which we will use to mmap channel area. Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
This patch also removed enable_source, since closing the STM device will turn off it automatically, so don't need to disable STM via sysfs command. Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
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my first pull request