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path: root/drivers/staging/dwc2/hcd.h
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2013-07-23staging: dwc2: refactor dwc2_host_complete()Paul Zimmerman
The parameters to dwc2_host_complete() didn't make much sense. The 'context' parameter always came from the ->priv member of the 'dwc2_urb' parameter, and both of those always came from a struct dwc2_qtd. So just pass in the struct dwc2_qtd instead. This also allows us to null out the dwc2_qtd->urb member after it is freed, which the calling code forgot to do in several places, causing random driver crashes from dereferencing the freed pointer. This also requires the calls to dwc2_hc_handle_tt_clear() to be moved before the calls to dwc2_host_complete(), otherwise that routine would do nothing because dwc2_qtd->urb has already been freed. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-16staging: dwc2: add const to handling of dwc2_core_paramsStephen Warren
Now the functions use proper const annotations, the global variable with default params can be marked const, which prevents these values from being changed for a specific device (in theory there could be multiple controllers with different settings, for example). Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> [matthijs@stdin.nl: Split patch from bigger patch, marked dwc2_module_params in pci.c as const and added commit message] Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-16staging: dwc2: rename dwc2_hcd_intr() to dwc2_handle_hcd_intr()Matthijs Kooijman
This makes the function name more clear and consistent with dwc2_handle_common_intr(). Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-16staging: dwc2: use irq_return_t for interrupt handlersMatthijs Kooijman
The top-level hcd interrupt handlers already used irq_return_t, but the functions to which it delegates the actual work and the common irq handler returned plain ints. In addition, they used the IRQ_RETVAL in the wrong way (but because of the values of the various constants, this didn't result in wrong behaviour). Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> [matthijs@stdin.nl: Split patch from bigger patch and added commit message] Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-11staging: dwc2: Make dwc2_set_uninitialized more specificMatthijs Kooijman
Before, it was a function that would set all members of a given struct containing only int members to -1. Now, it is renamed to dwc_set_all_params and it works only on the dwc2_core_params struct. This makes sure that all of the slightly dubious casting and assumptions happen inside the function instead of by the caller. Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-11staging: dwc2: toggle periodic debugging output separatelyMatthijs Kooijman
This adds a config option USB_DWC2_DEBUG_PERIODIC that allows debugging output be suppressed for periodic transfers. This helps when debugging non-periodic transfers while there are also periodic transfers going on (both to make the debug output less polluted and to prevent all CPU time going to debug messages). In addition, a debug message from dwc2_hcd_is_status_changed is removed entirely, since it often floods the log regardless of periodic transfers. Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Cc: Paul Zimmerman <Paul.Zimmerman@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-26staging: dwc2: remove unneeded arguments from two functionsPaul Zimmerman
Remove the unneeded struct device *dev argument from dwc2_hcd_init() and dwc2_hcd_remove(), and pass in the value through the hsotg->dev member instead Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-12staging: HCD files for the DWC2 driverPaul Zimmerman
These files contain the HCD code, and implement the Linux hc_driver API. Support for both slave mode and buffer DMA mode of the controller is included. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>