- 21 Sep, 2013 24 commits
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code a bit shorter and less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Makes the code shorter and a bit less ugly. Signed-off-by:
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Lars-Peter Clausen authored
Drivers using software buffers often store the timestamp in their data buffer before calling iio_push_to_buffers() with that data buffer. Storing the timestamp in the buffer usually involves some ugly pointer arithmetic. This patch adds a new helper function called iio_push_buffers_with_timestamp() which is similar to iio_push_to_buffers but takes an additional timestamp parameter. The function will help to hide to uglyness in one central place instead of exposing it in every driver. If timestamps are enabled for the IIO device iio_push_buffers_with_timestamp() will store the timestamp as the last element in buffer, before passing the buffer on to iio_push_buffers(). The buffer needs large enough to hold the timestamp in this case. If timestamps are disabled iio_push_buffers_with_timestamp() will behave just like iio_push_buffers(). Signed-off-by:
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Peter Meerwald authored
Signed-off-by:
Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by:
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Peter Meerwald authored
dev_to_iio_dev() is a false friend Signed-off-by:
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Zubair Lutfullah authored
Previously the driver had only one-shot reading functionality. This patch adds continuous sampling support to the driver. Continuous sampling starts when buffer is enabled. HW IRQ wakes worker thread that pushes samples to userspace. Sampling stops when buffer is disabled by userspace. Patil Rachna (TI) laid the ground work for ADC HW register access. Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs. I fixed channel scanning so multiple ADC channels can be read simultaneously and pushed to userspace. Restructured the driver to fit IIO ABI. And added INDIO_BUFFER_HARDWARE mode. Signed-off-by:
Zubair Lutfullah <zubair.lutfullah@gmail.com> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Russ Dill <Russ.Dill@ti.com> Acked-by:
Lee Jones <lee.jones@linaro.org> Acked-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Zubair Lutfullah authored
12 bit ADC data is stored in 32 bits of storage. Change from u32 to u16 to reduce wasted memory. Signed-off-by:
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Zubair Lutfullah authored
Enable shared IRQ to allow ADC to share IRQ line from parent MFD core. Only FIFO0 IRQs are for TSC and handled on the TSC side. Step mask would be updated from cached variable only previously. In rare cases when both TSC and ADC are used, the cached variable gets mixed up. The step mask is written with the required mask every time. Rachna Patil (TI) laid ground work for shared IRQ. Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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- 20 Sep, 2013 1 commit
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Thomas Meyer authored
sizeof when applied to a pointer typed expression gives the size of the pointer. Found by coccinelle spatch "misc/noderef.cocci" Signed-off-by:
Thomas Meyer <thomas@m3y3r.de> Signed-off-by:
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- 18 Sep, 2013 2 commits
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Peter Meerwald authored
Signed-off-by:
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Peter Meerwald authored
adding one return value check fix one kerneldoc Signed-off-by:
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- 16 Sep, 2013 1 commit
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Lars-Peter Clausen authored
The max1361 driver uses the same callbacks as the triggered buffer default buffer setup ops, so just remove the max1361 specific ops and let it use the default ops. Signed-off-by:
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- 15 Sep, 2013 12 commits
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Lars-Peter Clausen authored
Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by:
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Lars-Peter Clausen authored
Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by:
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Lars-Peter Clausen authored
Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to 'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their data buffer. When passing the buffer to iio_push_to_buffers() it needs to be cast to 'u8 *' for the compiler to not complain (and also having to add __force if we want to keep sparse happy as well). Since the buffer implementation should not care about the data layout (except the size of one sample) using a void pointer is the correct thing to do. Also make it const as the buffer implementations are not supposed to modify it. Signed-off-by:
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Lars-Peter Clausen authored
The iio_cb_access struct is never modified so we can mark it as const. Signed-off-by:
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Peter Meerwald authored
and drop obsolete #define Signed-off-by:
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Jonathan Cameron authored
Doing this makes it possible to access this control from within the kernel. Signed-off-by:
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Jonathan Cameron authored
Note that as this driver has output as well as output channels an example of info_mask_shared_by_all that makes any sense does not exist. Signed-off-by:
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Jonathan Cameron authored
These two additional info_mask bitmaps should allow all 'standard' numeric attributes to be handled using the read_raw and write_raw callbacks. Whilst this should reduce code, the more important element is that this makes these values easily accessible to in kernel users of IIO devices. Signed-off-by:
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Jonathan Cameron authored
Introduce an enum to specify whether the attribute is separate or shared. Factor out the bitmap handling for loop into a separate function. Tidy up error handling and add a NULL assignment to squish a false positive warning from GCC. Change ext_info shared type from boolean to enum and update in all drivers. Signed-off-by:
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Jonathan Cameron authored
Somehow this got missed when dropping all the code that used it prior to the split. Remove it now, there are no users. Signed-off-by:
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Lars-Peter Clausen authored
Use wake_up_interruptible_poll() instead of wake_up_interruptible() to only wake up those threads that listen for input poll notifications. Signed-off-by:
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Lars-Peter Clausen authored
We can skip having to loop through all the device's buffers to see if a certain buffer is active, if we let the buffer's list head point to itself when the buffer is inactive. Signed-off-by:
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