- Jan 29, 2012
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Alessandro Rubini authored
Move the structures needed from user space to their own header. User space can now only include zio.h (for version and name lenghts and zio-user.h). Several files are changed to reflect the new order. Signed-off-by:
Alessandro Rubini <rubini@gnudd.com> Acked-by:
Federico Vaga <federico.vaga@gmail.com>
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Alessandro Rubini authored
I always had a hard time understanding ZIO_NAME_OBJ. Since it's only used internally, let it have "LEN" in it's own name. Signed-off-by:
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- Jan 24, 2012
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Alessandro Rubini authored
The cset needs a spinlock for I/O operations. Locking the whole device seems overdue. The cset and channel need some private data, because they are allocated as arrays (while ti and bi don't need it, as container_of can be used). This adds a device-private pointer to both cset and channel, and a trigger-private pointer to the channel (this is used e.g. by the ldisc demultiplexer, to be committed later). Signed-off-by:
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Alessandro Rubini authored
This moves zio-dump to the tools directory. The Makefiles are suitable for out-of-kenrel compilation but not for in-kernel compilation, at this point. Signed-off-by:
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A zio object can be enabled or disabled Signed-off-by:
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The instance are created independently, so you can check if apply it or destroy it. Moreover, instances associated to cset and channel can be changed from sysfs Signed-off-by:
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ZIO check if the declared attrbutes within a device (zdev, cset, chan) are a valid set of attributes. Signed-off-by:
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When an attribute change, zio copy the new value to the zio_ctrl_attr within the control structure. Signed-off-by:
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The zio_ctrl_attr structure will be used to store the current value of the zio attributes in use by device and trigger. This is used within zio_control to provide these informations to user space. Signed-off-by:
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When a trigger fire it is set to STATUS_ON until data_done(); so, one transfer at time is allowed. Signed-off-by:
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Each zio object gets its own spinlock Signed-off-by:
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Alessandro Rubini authored
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Alessandro Rubini authored
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- Jan 06, 2012
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Alessandro Rubini authored
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- Jan 05, 2012
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Federico Vaga authored
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Federico Vaga authored
(input|output)_cset change returned value: * 0 if the acquisition is already done * -EAGAIN if the acquisition will be completed in the future (must use data_done) * Other error code if needed Signed-off-by:
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Federico Vaga authored
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Federico Vaga authored
index is the index within the vector of standard or extended attributes flags is used to specify attribute capabilities, currently if is extended or standard Signed-off-by:
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Federico Vaga authored
zio_cset interface modified. You can define a channel template to apply to all new allocated channels. This replaces the sysfs attribute channel template which is not enough. Channel template includes also the sysfs attributes to apply on each channel Signed-off-by:
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Federico Vaga authored
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Federico Vaga authored
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- Dec 11, 2011
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Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Acked-by:
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Federico Vaga authored
Internal cleanup: no interface change. Signed-off-by:
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Federico Vaga authored
The new name is more approriate. No interface change Signed-off-by:
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Federico Vaga authored
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Federico Vaga authored
Use correct names for internal consistency. No interface change. Signed-off-by:
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Federico Vaga authored
This is a general change that affects triggers and buffers as well. It introduces incompatibilities but the old name was actually a bug. Signed-off-by:
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- Dec 06, 2011
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Alessandro Rubini authored
New input cset, at most 8 gpio pins in 1-byte-per-sample. (Unlikely the previous one, this has been completed and tested) Signed-off-by:
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Alessandro Rubini authored
This reverts commit d0515205 . The input gpio driver is not ready, and it was pushed upstream in error. Signed-off-by:
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Alessandro Rubini authored
The user trigger is driven by read and write. It can support one-shot devices (those that produce or consume data only when user-space read or writes) and streaming device, with their own internal timings. It is, in some way, a transparent trigger, connecting buffer and device directly. Signed-off-by:
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Alessandro Rubini authored
New input cset, at most 8 gpio pins in 1-byte-per-sample Signed-off-by:
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Alessandro Rubini authored
This introduces ZIO_PARAM_TRIGGER(_name) and ZIO_PARAM_BUFFER(_name) and uses them in zio-zero. We'd love most software-driven devices to use the buffer= and trigger= parameters to override the default, thus the centralized macros. Signed-off-by:
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Alessandro Rubini authored
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