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2024-12-13ASoC: fsl_asrc_m2m: Add memory to memory functionShengjiu Wang
Implement the ASRC memory to memory function using the compress framework, user can use this function with compress ioctl interface. This feature can be shared by ASRC and EASRC drivers Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Acked-by: Jaroslav Kysela <perex@perex.cz> Link: https://patch.msgid.link/20241212074509.3445859-5-shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-12-13ASoC: fsl_asrc: define functions for memory to memory usageShengjiu Wang
ASRC can be used on memory to memory case, define several functions for m2m usage. m2m_prepare: prepare for the start step m2m_start: the start step m2m_unprepare: unprepare for stop step, optional m2m_stop: stop step m2m_check_format: check format is supported or not m2m_calc_out_len: calculate output length according to input length m2m_get_maxburst: burst size for dma m2m_pair_suspend: suspend function of pair, optional. m2m_pair_resume: resume function of pair get_output_fifo_size: get remaining data size in FIFO Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Acked-by: Jaroslav Kysela <perex@perex.cz> Link: https://patch.msgid.link/20241212074509.3445859-3-shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-06-12ASoC: fsl_asrc_dma: Fix data copying speed issue with EDMAShengjiu Wang
With EDMA, there is two dma channels can be used for dev_to_dev, one is from ASRC, one is from another peripheral (ESAI or SAI). If we select the dma channel of ASRC, there is an issue for ideal ratio case, the speed of copy data is faster than sample frequency, because ASRC output data is very fast in ideal ratio mode. So it is reasonable to use the dma channel of Back-End peripheral. then copying speed of DMA is controlled by data consumption speed in the peripheral FIFO, Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Reviewed-by: Nicolin Chen <nicoleotsuka@gmail.com> Link: https://lore.kernel.org/r/424ed6c249bafcbe30791c9de0352821c5ea67e2.1591947428.git.shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-21ASoC: fsl_asrc: Move common definition to fsl_asrc_commonShengjiu Wang
There is a new ASRC included in i.MX serial platform, there are some common definition can be shared with each other. So move the common definition to a separate header file. And add fsl_asrc_pair_priv and fsl_asrc_priv for the variable specific for the module, which can be used internally. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Acked-by: Nicolin Chen <nicoleotsuka@gmail.com> Link: https://lore.kernel.org/r/7106993928ea9e9720e6b42ec601871103155b1c.1587038908.git.shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>