From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Linux-ALSA <alsa-devel@alsa-project.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Vinod Koul <vinod.koul@linux.intel.com>,
Ralf Baechle <ralf@linux-mips.org>,
Wolfram Sang <w.sang@pengutronix.de>,
H Hartley Sweeten <hsweeten@visionengravers.com>,
Kuninori Morimoto <kuninori.morimoto.gx@gmail.com>,
Liam Girdwood <lrg@slimlogic.co.uk>
Subject: Re: [PATCH 19/19] ASoC: fsi: Add DMAEngine support
Date: Fri, 3 Feb 2012 13:48:51 +0000 [thread overview]
Message-ID: <20120203134850.GM3151@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <87aa50i971.wl%kuninori.morimoto.gx@renesas.com>
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On Fri, Feb 03, 2012 at 12:59:33AM -0800, Kuninori Morimoto wrote:
> +static void fsi_dma_do_tasklet(unsigned long data)
> +{
So, we're getting more and more drivers converted over to dmaengine
(I've CCed a random selection of people working on relevant drivers and
Vinod). This means we're getting a bunch of drivers that talk to the
ALSA API on the top and the dmaengine API on the bottom and seem to need
to implement very similar code patterns (like this tasklet to push the
DMA through). This feels like we need some sort of abstraction to
factor out some code here, either library code or perhaps a framework
driver with callbacks that fill in the platform specifics - if the APIs
are providing useful abstractions then presumably a large part of this
is just translating between them.
If that's not doable then what are the problems?
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next prev parent reply other threads:[~2012-02-03 13:48 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-03 8:48 ASoC: fsi: Add FSI DMAEngine support Kuninori Morimoto
2012-02-03 8:50 ` [PATCH 01/19] ASoC: fsi: reduce runtime calculation by using pre-setting Kuninori Morimoto
2012-02-03 8:50 ` [PATCH 02/19] ASoC: fsi: tidyup: fsi_stream_xx() functions were gathered Kuninori Morimoto
2012-02-03 11:42 ` Mark Brown
2012-02-03 8:50 ` [PATCH 03/19] ASoC: fsi: data push/pop calculation part was divided Kuninori Morimoto
2012-02-03 8:51 ` [PATCH 04/19] ASoC: fsi: rename fsi_dma_soft_xxx() to fsi_pio_xxx() Kuninori Morimoto
2012-02-03 8:51 ` [PATCH 05/19] ASoC: fsi: tidyup: move fsi_fifo_init() onto fsi_hw_startup() Kuninori Morimoto
2012-02-03 8:51 ` [PATCH 06/19] ASoC: fsi: remove unnecessary parameter from fsi_hw_shutdown() Kuninori Morimoto
2012-02-03 8:52 ` [PATCH 07/19] ASoC: fsi: rename fsi_stream_push/pop() to fsi_stream_init/quit() Kuninori Morimoto
2012-02-03 8:52 ` [PATCH 08/19] ASoC: fsi: modify fsi_pio_get_area() parameter and using position Kuninori Morimoto
2012-02-03 8:54 ` [PATCH 09/19] ASoC: fsi: re-define fsi_is_play() and fsi_stream_is_play() Kuninori Morimoto
2012-02-03 11:46 ` Mark Brown
2012-02-03 8:55 ` [PATCH 10/19] ASoC: fsi: use fsi_stream in fsi_get_current_fifo_samples() parameter Kuninori Morimoto
2012-02-03 8:55 ` [PATCH 11/19] ASoC: fsi: add fsi_stream_handler and PIO handler Kuninori Morimoto
2012-02-03 8:56 ` [PATCH 12/19] ASoC: fsi: tidyup: fsi_pio_xxx() are gathered Kuninori Morimoto
2012-02-03 8:56 ` [PATCH 13/19] ASoC: fsi: don't use is_play as a parameter of fsi functions Kuninori Morimoto
2012-02-03 8:57 ` [PATCH 14/19] ASoC: fsi: add .start_stop handler to fsi_stream_handler Kuninori Morimoto
2012-02-03 8:57 ` [PATCH 15/19] ASoC: fsi: fsi_stream_is_working() care substream->runtime Kuninori Morimoto
2012-02-03 8:58 ` [PATCH 16/19] ASoC: fsi: PortA/B information was controlled by sh_fsi_port_info Kuninori Morimoto
2012-02-03 8:59 ` [PATCH 17/19] ASoC: fsi: add .init/.quit handler support Kuninori Morimoto
2012-02-03 8:59 ` [PATCH 18/19] ASoC: fsi: fixup fsi_pointer() calculation method Kuninori Morimoto
2012-02-03 11:55 ` Mark Brown
2012-02-06 0:36 ` Kuninori Morimoto
2012-02-06 16:46 ` Mark Brown
2012-02-07 0:13 ` Kuninori Morimoto
2012-02-07 11:29 ` Mark Brown
2012-02-08 0:08 ` Kuninori Morimoto
2012-02-08 11:50 ` Mark Brown
2012-02-09 0:57 ` [PATCH 18/19 v2] " Kuninori Morimoto
2012-02-09 10:56 ` Mark Brown
2012-02-03 8:59 ` [PATCH 19/19] ASoC: fsi: Add DMAEngine support Kuninori Morimoto
2012-02-03 13:48 ` Mark Brown [this message]
2012-02-03 14:05 ` Lars-Peter Clausen
2012-02-03 14:14 ` Mark Brown
2012-02-04 16:31 ` Vinod Koul
2012-02-04 17:00 ` Lars-Peter Clausen
2012-02-04 18:01 ` Vinod Koul
2012-02-04 18:06 ` Vinod Koul
2012-02-04 18:25 ` Lars-Peter Clausen
2012-02-04 18:40 ` Vinod Koul
2012-02-06 8:47 ` Lars-Peter Clausen
2012-02-06 14:46 ` Vinod Koul
2012-02-06 14:50 ` Lars-Peter Clausen
2012-02-04 17:12 ` Mark Brown
2012-02-20 2:40 ` Mark Brown
2012-02-20 6:58 ` Kuninori Morimoto
2012-02-03 11:56 ` ASoC: fsi: Add FSI " Mark Brown
2012-02-06 0:40 ` Kuninori Morimoto
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