diff options
| author | Ryan Mallon | 2009-03-02 21:27:38 +0100 |
|---|---|---|
| committer | Russell King | 2009-03-03 12:20:11 +0000 |
| commit | 6d831c6554e4f95083919914955a1a3a4a6acfa9 (patch) | |
| tree | 839810e06475cda214b93340059c4c8881287cac /arch/arm/mach-ep93xx/include/mach/dma.h | |
| parent | 1c8daabe1dafc30fcc1d929e620269ffe99b6f8a (diff) | |
[ARM] 5414/2: ep93xx m2p dma core
Add m2p dma support to the ep93xx
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ep93xx/include/mach/dma.h')
| -rw-r--r-- | arch/arm/mach-ep93xx/include/mach/dma.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/include/mach/dma.h b/arch/arm/mach-ep93xx/include/mach/dma.h new file mode 100644 index 000000000000..ef6bd9d13148 --- /dev/null +++ b/arch/arm/mach-ep93xx/include/mach/dma.h @@ -0,0 +1,52 @@ +#ifndef __ASM_ARCH_DMA_H +#define __ASM_ARCH_DMA_H + +#include <linux/list.h> +#include <linux/types.h> + +struct ep93xx_dma_buffer { + struct list_head list; + u32 bus_addr; + u16 size; +}; + +struct ep93xx_dma_m2p_client { + char *name; + u8 flags; + void *cookie; + void (*buffer_started)(void *cookie, + struct ep93xx_dma_buffer *buf); + void (*buffer_finished)(void *cookie, + struct ep93xx_dma_buffer *buf, + int bytes, int error); + + /* Internal to the DMA code. */ + void *channel; +}; + +#define EP93XX_DMA_M2P_PORT_I2S1 0x00 +#define EP93XX_DMA_M2P_PORT_I2S2 0x01 +#define EP93XX_DMA_M2P_PORT_AAC1 0x02 +#define EP93XX_DMA_M2P_PORT_AAC2 0x03 +#define EP93XX_DMA_M2P_PORT_AAC3 0x04 +#define EP93XX_DMA_M2P_PORT_I2S3 0x05 +#define EP93XX_DMA_M2P_PORT_UART1 0x06 +#define EP93XX_DMA_M2P_PORT_UART2 0x07 +#define EP93XX_DMA_M2P_PORT_UART3 0x08 +#define EP93XX_DMA_M2P_PORT_IRDA 0x09 +#define EP93XX_DMA_M2P_PORT_MASK 0x0f +#define EP93XX_DMA_M2P_TX 0x00 +#define EP93XX_DMA_M2P_RX 0x10 +#define EP93XX_DMA_M2P_ABORT_ON_ERROR 0x20 +#define EP93XX_DMA_M2P_IGNORE_ERROR 0x40 +#define EP93XX_DMA_M2P_ERROR_MASK 0x60 + +int ep93xx_dma_m2p_client_register(struct ep93xx_dma_m2p_client *m2p); +void ep93xx_dma_m2p_client_unregister(struct ep93xx_dma_m2p_client *m2p); +void ep93xx_dma_m2p_submit(struct ep93xx_dma_m2p_client *m2p, + struct ep93xx_dma_buffer *buf); +void ep93xx_dma_m2p_submit_recursive(struct ep93xx_dma_m2p_client *m2p, + struct ep93xx_dma_buffer *buf); +void ep93xx_dma_m2p_flush(struct ep93xx_dma_m2p_client *m2p); + +#endif /* __ASM_ARCH_DMA_H */ |