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ADSP-SC589 linkport driver using DMA

This driver improves the Blackfin/ADSP-SC58x linkport driver, as developed by Analog Devices, by utilizing DMA and interrupts. It is a high-performance high-bandwidth non-blocking double-buffered driver. It can be used using normal read() and write() calls, but to use the double buffering efficiently, more complex ioctl() should be used to indicate how much data is expected.

bfin_lp.c replaces the buildroot/linux/linux-kernel/drivers/char/bfin_lp.c, as distributed within the CCES Linux add-in 1.1.0, with buildroot-sc58x-1.1.0, and Linux version 4.0.0-ADI-1.1.0.

This repository can be used as linkportdma package within your br2-external tree.

License

The project license is specified in COPYING.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

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ADSP-SC58x linkport driver using DMA

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