From: Sascha Hauer <s.hauer@pengutronix.de>
To: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
Dan Williams <dan.j.williams@intel.com>,
Sascha Hauer <s.hauer@pengutronix.de>
Subject: [PATCH 2/4] dmaengine: add wrapper functions for device control functions
Date: Thu, 30 Sep 2010 15:56:33 +0200 [thread overview]
Message-ID: <1285854995-6569-3-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1285854995-6569-1-git-send-email-s.hauer@pengutronix.de>
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 <s.hauer@pengutronix.de>
---
include/linux/dmaengine.h | 34 ++++++++++++++++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 32cd84b..2218fdc 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;
--
1.7.2.3
next prev parent reply other threads:[~2010-09-30 13:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-30 13:56 dmaengine patches Sascha Hauer
2010-09-30 13:56 ` [PATCH 1/4] dmaengine: add possibility for cyclic transfers Sascha Hauer
2010-09-30 13:56 ` Sascha Hauer [this message]
2010-09-30 13:56 ` [PATCH 3/4] dmaengine: Add Freescale i.MX SDMA support Sascha Hauer
2010-10-08 0:14 ` Dan Williams
2010-09-30 13:56 ` [PATCH 4/4] dmaengine: Add Freescale i.MX1/21/27 DMA driver Sascha Hauer
[not found] ` <AANLkTikaAuBe=ef3vnt_xV0At4ZQbNsD4rFqtLF4R+0+@mail.gmail.com>
2010-10-05 10:06 ` Sascha Hauer
2010-10-05 15:20 ` Linus Walleij
2010-10-05 23:16 ` Dan Williams
2010-10-06 8:24 ` Sascha Hauer
2010-10-06 8:25 ` [PATCH 4/4 v2] " Sascha Hauer
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