diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2010-05-19 18:34:22 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-22 16:51:18 +0900 |
| commit | 311f3ac76826bfd8ed6213ded91ec947df164def (patch) | |
| tree | c848087c301930bd0104441de82d9c13c97c2f09 /drivers/mmc/host/tmio_mmc.h | |
| parent | 056676dabd9f4c69a6adcad208e9aa2ca7241400 (diff) | |
mmc: add DMA support to tmio_mmc driver, when used on SuperH
SDHI controllers on SuperH, served by the tmio_mmc driver, can use slave DMA
for data transfer. This patch adds support for the dmaengine API to the
tmio_mmc driver.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index dafecfbcd91..64f7d5dfc10 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -10,6 +10,8 @@ */ #include <linux/highmem.h> +#include <linux/interrupt.h> +#include <linux/dmaengine.h> #define CTL_SD_CMD 0x00 #define CTL_ARG_REG 0x04 @@ -106,6 +108,17 @@ struct tmio_mmc_host { unsigned int sg_off; struct platform_device *pdev; + + /* DMA support */ + struct dma_chan *chan_rx; + struct dma_chan *chan_tx; + struct tasklet_struct dma_complete; + struct tasklet_struct dma_issue; +#ifdef CONFIG_TMIO_MMC_DMA + struct dma_async_tx_descriptor *desc; + unsigned int dma_sglen; + dma_cookie_t cookie; +#endif }; #include <linux/io.h> |