From 6e3ecaf0ad49de0bed829d409a164e7107c02993 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 30 Sep 2010 13:56:33 +0000 Subject: [PATCH] dmaengine: add wrapper functions for device control functions Add wrapper functions around the dma_device->device_control function to bring back type safety. Also, add a wrapper function around dma_async_tx_descriptor->tx_submit. This is named dmaengine_submit instead of dmaengine_tx_submit to get rid of the confusing 'tx' in the function name Signed-off-by: Sascha Hauer Signed-off-by: Dan Williams --- include/linux/dmaengine.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 32cd84b47478..2218fdcbe8a9 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -494,6 +494,40 @@ struct dma_device { void (*device_issue_pending)(struct dma_chan *chan); }; +static inline int dmaengine_device_control(struct dma_chan *chan, + enum dma_ctrl_cmd cmd, + unsigned long arg) +{ + return chan->device->device_control(chan, cmd, arg); +} + +static inline int dmaengine_slave_config(struct dma_chan *chan, + struct dma_slave_config *config) +{ + return dmaengine_device_control(chan, DMA_SLAVE_CONFIG, + (unsigned long)config); +} + +static inline int dmaengine_terminate_all(struct dma_chan *chan) +{ + return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0); +} + +static inline int dmaengine_pause(struct dma_chan *chan) +{ + return dmaengine_device_control(chan, DMA_PAUSE, 0); +} + +static inline int dmaengine_resume(struct dma_chan *chan) +{ + return dmaengine_device_control(chan, DMA_RESUME, 0); +} + +static inline int dmaengine_submit(struct dma_async_tx_descriptor *desc) +{ + return desc->tx_submit(desc); +} + static inline bool dmaengine_check_align(u8 align, size_t off1, size_t off2, size_t len) { size_t mask;