From c3635c78e500a52c9fcd55de381a72928d9e054d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 26 Mar 2010 16:44:01 -0700 Subject: DMAENGINE: generic slave control v2 Convert the device_terminate_all() operation on the DMA engine to a generic device_control() operation which can now optionally support also pausing and resuming DMA on a certain channel. Implemented for the COH 901 318 DMAC as an example. [dan.j.williams@intel.com: update for timberdale] Signed-off-by: Linus Walleij Acked-by: Mark Brown Cc: Maciej Sosnowski Cc: Nicolas Ferre Cc: Pavel Machek Cc: Li Yang Cc: Guennadi Liakhovetski Cc: Paul Mundt Cc: Ralf Baechle Cc: Haavard Skinnemoen Cc: Magnus Damm Cc: Liam Girdwood Cc: Joe Perches Cc: Roland Dreier Signed-off-by: Dan Williams --- sound/soc/txx9/txx9aclc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sound/soc/txx9') diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c index efed64b8b02..b35d00706c0 100644 --- a/sound/soc/txx9/txx9aclc.c +++ b/sound/soc/txx9/txx9aclc.c @@ -159,7 +159,7 @@ static void txx9aclc_dma_tasklet(unsigned long data) void __iomem *base = drvdata->base; spin_unlock_irqrestore(&dmadata->dma_lock, flags); - chan->device->device_terminate_all(chan); + chan->device->device_control(chan, DMA_TERMINATE_ALL); /* first time */ for (i = 0; i < NR_DMA_CHAIN; i++) { desc = txx9aclc_dma_submit(dmadata, @@ -267,7 +267,7 @@ static int txx9aclc_pcm_close(struct snd_pcm_substream *substream) struct dma_chan *chan = dmadata->dma_chan; dmadata->frag_count = -1; - chan->device->device_terminate_all(chan); + chan->device->device_control(chan, DMA_TERMINATE_ALL); return 0; } @@ -396,7 +396,7 @@ static int txx9aclc_pcm_remove(struct platform_device *pdev) struct dma_chan *chan = dmadata->dma_chan; if (chan) { dmadata->frag_count = -1; - chan->device->device_terminate_all(chan); + chan->device->device_control(chan, DMA_TERMINATE_ALL); dma_release_channel(chan); } dev->dmadata[i].dma_chan = NULL; -- cgit v1.2.3 From 058276303dbc4ed089c1f7dad0871810b1f5ddf1 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 17 May 2010 16:30:42 -0700 Subject: DMAENGINE: extend the control command to include an arg This adds an argument to the DMAengine control function, so that we can later provide control commands that need some external data passed in through an argument akin to the ioctl() operation prototype. [dan.j.williams@intel.com: fix up some missed conversions] Signed-off-by: Linus Walleij Signed-off-by: Dan Williams --- sound/soc/txx9/txx9aclc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'sound/soc/txx9') diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c index b35d00706c0..9398f507f77 100644 --- a/sound/soc/txx9/txx9aclc.c +++ b/sound/soc/txx9/txx9aclc.c @@ -159,7 +159,7 @@ static void txx9aclc_dma_tasklet(unsigned long data) void __iomem *base = drvdata->base; spin_unlock_irqrestore(&dmadata->dma_lock, flags); - chan->device->device_control(chan, DMA_TERMINATE_ALL); + chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); /* first time */ for (i = 0; i < NR_DMA_CHAIN; i++) { desc = txx9aclc_dma_submit(dmadata, @@ -267,7 +267,7 @@ static int txx9aclc_pcm_close(struct snd_pcm_substream *substream) struct dma_chan *chan = dmadata->dma_chan; dmadata->frag_count = -1; - chan->device->device_control(chan, DMA_TERMINATE_ALL); + chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); return 0; } @@ -396,7 +396,8 @@ static int txx9aclc_pcm_remove(struct platform_device *pdev) struct dma_chan *chan = dmadata->dma_chan; if (chan) { dmadata->frag_count = -1; - chan->device->device_control(chan, DMA_TERMINATE_ALL); + chan->device->device_control(chan, + DMA_TERMINATE_ALL, 0); dma_release_channel(chan); } dev->dmadata[i].dma_chan = NULL; -- cgit v1.2.3