 Con Kolivas
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02a4f8df9c
Convert the usb callback function to using cgsem_t timed waits to avoid race conditions with conditionals/mutexes.
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12 years ago |
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Con Kolivas
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1d9f90b256
Revert "Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals."
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12 years ago |
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Con Kolivas
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433465bcfc
Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals.
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12 years ago |
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Con Kolivas
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9ca22ed493
Use the one LIBUSB_ERROR_TIMEOUT for cancelled transactions since this error is explicitly tested for in various drivers.
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12 years ago |
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Con Kolivas
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a7580f1ff2
Do not use locking on usb callback function pthread signalling to prevent deadlock with libusb's own event lock.
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12 years ago |
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Con Kolivas
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280dc4bf01
Lock mutex before second pthread_cond_wait in usbutils to prevent a race.
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12 years ago |
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Con Kolivas
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84de52c1c6
Use a write lock when performing any USB control transfers to prevent concurrent transfers.
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12 years ago |
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Con Kolivas
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c069028648
Free a libusb transfer after we have finished using it to avoid a dereference in usb_control_transfer
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12 years ago |
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Con Kolivas
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84f642f563
Although async transfers are meant to use heap memory, we never return before the transfer function has completed so stack memory will suffice for control transfers, fixing a memory leak in the process.
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12 years ago |
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Con Kolivas
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2ca8d85906
Convert all usb control transfers to asynchronous communication with our own timeout management as well.
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12 years ago |
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Con Kolivas
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b537976036
Make pthread conditional timeouts handle all bulk usb transfer timeouts performing libusb_cancel_transfer, disabling timeouts within libusb itself.
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12 years ago |
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Con Kolivas
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03ad59f287
Add a small amount to the usb timeout before cancelling to allow for a regular usb polling interval to pass.
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12 years ago |
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Con Kolivas
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08d8612f68
Do not attempt to clear a usb halt before sending the cancel message since all transfers should normally be cancelled before attempting to clear a halt condition, and only change the return message to a timeout if it's consistent with a cancellation.
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12 years ago |
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Con Kolivas
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6d18ce4caa
Retry up to USB_RETRY_MAX times to clear a halt condition before failing.
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12 years ago |
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Con Kolivas
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3a7a677f45
Show the error number as well as the description in erroring bulk transfers.
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12 years ago |
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Con Kolivas
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b5dfacef24
We are always dependent on libusb handling events so use the blocking libusb_handle_events in the polling thread and use a bool to know if we should continue polling.
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12 years ago |
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Con Kolivas
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853aa28ffc
Merge branch 'master' into async
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12 years ago |
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Con Kolivas
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32bc746178
Check for presence of driver name in DRIVER_COUNT_FOUND to prevent strcmp on a null pointer when a driver is not built in.
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12 years ago |
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Con Kolivas
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dc9c3783ec
Display errors on failed usb read and write and consider sequential IO errors a permanent failure.
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12 years ago |
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Con Kolivas
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a22f5bfddd
Use libusb's own error name function instead of hand coding the error names.
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12 years ago |
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Con Kolivas
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efd8c44182
Check for async transfer variants of error messages.
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12 years ago |
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Con Kolivas
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2806f49c01
Revert "Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall."
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12 years ago |
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Con Kolivas
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d34279b226
Remove unused variables.
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12 years ago |
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Con Kolivas
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f80c900336
Merge branch 'master' into async
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12 years ago |
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Con Kolivas
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ef8efd6c48
Minimise the time between dropping the read devlock and grabbing the write devlock to avoid tons of logging spam in the interim.
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12 years ago |
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Con Kolivas
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85e0b3a50f
Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall.
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12 years ago |
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Con Kolivas
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a79768b74d
Use libusb's own error name function instead of hand coding the error names.
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12 years ago |
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Con Kolivas
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74775e4e72
Check for libusb transfer stall error to be consistent with async IO errors returned for a halt condition.
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12 years ago |
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Con Kolivas
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38ae7093d2
Check for continuous IO errors on USB and consider the device inactive if more than retry max.
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12 years ago |
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Con Kolivas
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7318eceef9
Make the devlock a cglock in usbutils and only grab the write lock for fundamental changes allowing us to send and receive transfers concurrently without lock contention.
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12 years ago |
