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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-03-27 02:07:51 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-03-27 02:07:51 +0000 |
| commit | f636ee02124366885a669d2434e408e43ad08ebf (patch) | |
| tree | 28848182f4410fefb633bf2ef3da6c17628efd9a /nuttx/arch/arm/src/sam3u/sam3u_hsmci.c | |
| parent | 055617cdf4b31f891d727786682e3343cc67046b (diff) | |
| download | px4-nuttx-f636ee02124366885a669d2434e408e43ad08ebf.tar.gz px4-nuttx-f636ee02124366885a669d2434e408e43ad08ebf.tar.bz2 px4-nuttx-f636ee02124366885a669d2434e408e43ad08ebf.zip | |
A little more DMA logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2556 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/sam3u/sam3u_hsmci.c')
| -rwxr-xr-x | nuttx/arch/arm/src/sam3u/sam3u_hsmci.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/nuttx/arch/arm/src/sam3u/sam3u_hsmci.c b/nuttx/arch/arm/src/sam3u/sam3u_hsmci.c index 64bef3ff0..94a8b7d91 100755 --- a/nuttx/arch/arm/src/sam3u/sam3u_hsmci.c +++ b/nuttx/arch/arm/src/sam3u/sam3u_hsmci.c @@ -2346,8 +2346,8 @@ static int sam3u_dmarecvsetup(FAR struct sdio_dev_s *dev, FAR uint8_t *buffer, sam3u_enablexfrints(priv, HSMCI_DMARECV_INTS); putreg32(1, HSMCI_DCTRL_DMAEN_BB); - sam3u_dmasetup(priv->dma, SAM3U_HSMCI_FIFO, (uint32_t)buffer, - (buflen + 3) >> 2, HSMCI_RXDMA32_CONFIG); + sam3u_dmarxsetup(priv->dma, SAM3U_HSMCI_FIFO, (uint32_t)buffer, + (buflen + 3) >> 2, HSMCI_RXDMA32_CONFIG); /* Start the DMA */ @@ -2412,8 +2412,8 @@ static int sam3u_dmasendsetup(FAR struct sdio_dev_s *dev, /* Configure the TX DMA */ - sam3u_dmasetup(priv->dma, SAM3U_HSMCI_FIFO, (uint32_t)buffer, - (buflen + 3) >> 2, HSMCI_TXDMA32_CONFIG); + sam3u_dmatxsetup(priv->dma, SAM3U_HSMCI_FIFO, (uint32_t)buffer, + (buflen + 3) >> 2, HSMCI_TXDMA32_CONFIG); sam3u_sample(priv, SAMPLENDX_BEFORE_ENABLE); putreg32(1, HSMCI_DCTRL_DMAEN_BB); @@ -2543,9 +2543,9 @@ FAR struct sdio_dev_s *sdio_initialize(int slotno) priv->waitwdog = wd_create(); DEBUGASSERT(priv->waitwdog); - /* Allocate a DMA channel */ + /* Allocate a DMA channel. A FIFO size of 8 is sufficient. */ - priv->dma = sam3u_dmachannel(); + priv->dma = sam3u_dmachannel(8); DEBUGASSERT(priv->dma); /* Configure GPIOs for 4-bit, wide-bus operation. NOTE: (1) the chip is capable of |