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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-04 15:08:30 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-04 15:08:30 +0000 |
| commit | 7cdad482974792419cfe4b0affca689170116f49 (patch) | |
| tree | f9ee204f8848274ffb3323f425ad039cf4807de6 /arch/arm/kernel/dma-isa.c | |
| parent | 333c9624b728a9e83b741ea75836aa114ec35272 (diff) | |
| download | linux-stable-7cdad482974792419cfe4b0affca689170116f49.tar.gz linux-stable-7cdad482974792419cfe4b0affca689170116f49.tar.bz2 linux-stable-7cdad482974792419cfe4b0affca689170116f49.zip | |
[ARM] Remove '__address' from scatterlist and convert to DMA API
The old __address element in struct scatterlist remained from older
kernels because the ARM DMA emulation code made use of it. Move
this field into struct dma_struct, and convert DMA emulation code
to setup a SG entry as required.
Also, convert DMA emulation code to use the new DMA API rather
than the PCI DMA API.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/dma-isa.c')
| -rw-r--r-- | arch/arm/kernel/dma-isa.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c index e9a36304ec3e..03532769a97f 100644 --- a/arch/arm/kernel/dma-isa.c +++ b/arch/arm/kernel/dma-isa.c @@ -18,7 +18,7 @@ */ #include <linux/ioport.h> #include <linux/init.h> -#include <linux/pci.h> +#include <linux/dma-mapping.h> #include <asm/dma.h> #include <asm/io.h> @@ -65,37 +65,41 @@ static void isa_enable_dma(dmach_t channel, dma_t *dma) { if (dma->invalid) { unsigned long address, length; - unsigned int mode, direction; + unsigned int mode; + enum dma_data_direction direction; mode = channel & 3; switch (dma->dma_mode & DMA_MODE_MASK) { case DMA_MODE_READ: mode |= ISA_DMA_MODE_READ; - direction = PCI_DMA_FROMDEVICE; + direction = DMA_FROM_DEVICE; break; case DMA_MODE_WRITE: mode |= ISA_DMA_MODE_WRITE; - direction = PCI_DMA_TODEVICE; + direction = DMA_TO_DEVICE; break; case DMA_MODE_CASCADE: mode |= ISA_DMA_MODE_CASCADE; - direction = PCI_DMA_BIDIRECTIONAL; + direction = DMA_BIDIRECTIONAL; break; default: - direction = PCI_DMA_NONE; + direction = DMA_NONE; break; } - if (!dma->using_sg) { + if (!dma->sg) { /* * Cope with ISA-style drivers which expect cache * coherence. */ - dma->buf.dma_address = pci_map_single(NULL, - dma->buf.__address, dma->buf.length, + dma->sg = &dma->buf; + dma->sgcount = 1; + dma->buf.length = dma->count; + dma->buf.dma_address = dma_map_single(NULL, + dma->addr, dma->count, direction); } |