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-rw-r--r--arch/arm/mach-s3c64xx/include/mach/dma.h127
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diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h
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index 00000000000..0a5d9268a23
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+++ b/arch/arm/mach-s3c64xx/include/mach/dma.h
@@ -0,0 +1,127 @@
+/* linux/arch/arm/mach-s3c6400/include/mach/dma.h
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * S3C6400 - DMA support
+ */
+
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H __FILE__
+
+#define S3C_DMA_CHANNELS (16)
+
+/* see mach-s3c2410/dma.h for notes on dma channel numbers */
+
+/* Note, for the S3C64XX architecture we keep the DMACH_
+ * defines in the order they are allocated to [S]DMA0/[S]DMA1
+ * so that is easy to do DHACH_ -> DMA controller conversion
+ */
+enum dma_ch {
+ /* DMA0/SDMA0 */
+ DMACH_UART0 = 0,
+ DMACH_UART0_SRC2,
+ DMACH_UART1,
+ DMACH_UART1_SRC2,
+ DMACH_UART2,
+ DMACH_UART2_SRC2,
+ DMACH_UART3,
+ DMACH_UART3_SRC2,
+ DMACH_PCM0_TX,
+ DMACH_PCM0_RX,
+ DMACH_I2S0_OUT,
+ DMACH_I2S0_IN,
+ DMACH_SPI0_TX,
+ DMACH_SPI0_RX,
+ DMACH_HSI_I2SV40_TX,
+ DMACH_HSI_I2SV40_RX,
+
+ /* DMA1/SDMA1 */
+ DMACH_PCM1_TX = 16,
+ DMACH_PCM1_RX,
+ DMACH_I2S1_OUT,
+ DMACH_I2S1_IN,
+ DMACH_SPI1_TX,
+ DMACH_SPI1_RX,
+ DMACH_AC97_PCMOUT,
+ DMACH_AC97_PCMIN,
+ DMACH_AC97_MICIN,
+ DMACH_PWM,
+ DMACH_IRDA,
+ DMACH_EXTERNAL,
+ DMACH_RES1,
+ DMACH_RES2,
+ DMACH_SECURITY_RX, /* SDMA1 only */
+ DMACH_SECURITY_TX, /* SDMA1 only */
+ DMACH_MAX /* the end */
+};
+
+static __inline__ bool s3c_dma_has_circular(void)
+{
+ return true;
+}
+
+#define S3C2410_DMAF_CIRCULAR (1 << 0)
+
+#include <plat/dma.h>
+
+#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */
+
+struct s3c64xx_dma_buff;
+
+/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor
+ * @next: Pointer to next buffer in queue or ring.
+ * @pw: Client provided identifier
+ * @lli: Pointer to hardware descriptor this buffer is associated with.
+ * @lli_dma: Hardare address of the descriptor.
+ */
+struct s3c64xx_dma_buff {
+ struct s3c64xx_dma_buff *next;
+
+ void *pw;
+ struct pl080s_lli *lli;
+ dma_addr_t lli_dma;
+};
+
+struct s3c64xx_dmac;
+
+struct s3c2410_dma_chan {
+ unsigned char number; /* number of this dma channel */
+ unsigned char in_use; /* channel allocated */
+ unsigned char bit; /* bit for enable/disable/etc */
+ unsigned char hw_width;
+ unsigned char peripheral;
+
+ unsigned int flags;
+ enum s3c2410_dmasrc source;
+
+
+ dma_addr_t dev_addr;
+
+ struct s3c2410_dma_client *client;
+ struct s3c64xx_dmac *dmac; /* pointer to controller */
+
+ void __iomem *regs;
+
+ /* cdriver callbacks */
+ s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */
+ s3c2410_dma_opfn_t op_fn; /* channel op callback */
+
+ /* buffer list and information */
+ struct s3c64xx_dma_buff *curr; /* current dma buffer */
+ struct s3c64xx_dma_buff *next; /* next buffer to load */
+ struct s3c64xx_dma_buff *end; /* end of queue */
+
+ /* note, when channel is running in circular mode, curr is the
+ * first buffer enqueued, end is the last and curr is where the
+ * last buffer-done event is set-at. The buffers are not freed
+ * and the last buffer hardware descriptor points back to the
+ * first.
+ */
+};
+
+#include <plat/dma-core.h>
+
+#endif /* __ASM_ARCH_IRQ_H */