fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-arm / arch-s3c2410 / dma.h

diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
index 3661e46..58ffa7b 100644 (file)
--- a/include/asm-arm/arch-s3c2410/dma.h
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -14,7 +14,7 @@
 #define __ASM_ARCH_DMA_H __FILE__
 
 #include <linux/sysdev.h>
-#include "hardware.h"
+#include <asm/hardware.h>
 
 /*
  * This is the maximum DMA address(physical address) that can be DMAd to.
@@ -23,6 +23,39 @@
 #define MAX_DMA_ADDRESS                0x40000000
 #define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
 
+/* We use `virtual` dma channels to hide the fact we have only a limited
+ * number of DMA channels, and not of all of them (dependant on the device)
+ * can be attached to any DMA source. We therefore let the DMA core handle
+ * the allocation of hardware channels to clients.
+*/
+
+enum dma_ch {
+       DMACH_XD0,
+       DMACH_XD1,
+       DMACH_SDI,
+       DMACH_SPI0,
+       DMACH_SPI1,
+       DMACH_UART0,
+       DMACH_UART1,
+       DMACH_UART2,
+       DMACH_TIMER,
+       DMACH_I2S_IN,
+       DMACH_I2S_OUT,
+       DMACH_PCM_IN,
+       DMACH_PCM_OUT,
+       DMACH_MIC_IN,
+       DMACH_USB_EP1,
+       DMACH_USB_EP2,
+       DMACH_USB_EP3,
+       DMACH_USB_EP4,
+       DMACH_UART0_SRC2,       /* s3c2412 second uart sources */
+       DMACH_UART1_SRC2,
+       DMACH_UART2_SRC2,
+       DMACH_MAX,              /* the end entry */
+};
+
+#define DMACH_LOW_LEVEL        (1<<28) /* use this to specifiy hardware ch no */
+
 /* we have 4 dma channels */
 #define S3C2410_DMA_CHANNELS        (4)
 
@@ -149,6 +182,8 @@ struct s3c2410_dma_stats {
        unsigned long           timeout_failed;
 };
 
+struct s3c2410_dma_map;
+
 /* struct s3c2410_dma_chan
  *
  * full state information for each DMA channel
@@ -174,6 +209,8 @@ struct s3c2410_dma_chan {
        unsigned long            load_timeout;
        unsigned int             flags;         /* channel flags */
 
+       struct s3c24xx_dma_map  *map;           /* channel hw maps */
+
        /* channel's hardware position and configuration */
        void __iomem            *regs;          /* channels registers */
        void __iomem            *addr_reg;      /* data address register */
@@ -283,6 +320,7 @@ extern int s3c2410_dma_set_buffdone_fn(dmach_t, s3c2410_dma_cbfn_t rtn);
 #define S3C2410_DMA_DCSRC       (0x18)
 #define S3C2410_DMA_DCDST       (0x1C)
 #define S3C2410_DMA_DMASKTRIG   (0x20)
+#define S3C2412_DMA_DMAREQSEL  (0x24)
 
 #define S3C2410_DISRCC_INC     (1<<0)
 #define S3C2410_DISRCC_APB     (1<<1)
@@ -349,4 +387,32 @@ extern int s3c2410_dma_set_buffdone_fn(dmach_t, s3c2410_dma_cbfn_t rtn);
 #define S3C2440_DCON_CH3_PCMOUT        (6<<24)
 #endif
 
+#ifdef CONFIG_CPU_S3C2412
+
+#define S3C2412_DMAREQSEL_SRC(x)       ((x)<<1)
+
+#define S3C2412_DMAREQSEL_HW           (1)
+
+#define S3C2412_DMAREQSEL_SPI0TX       S3C2412_DMAREQSEL_SRC(0)
+#define S3C2412_DMAREQSEL_SPI0RX       S3C2412_DMAREQSEL_SRC(1)
+#define S3C2412_DMAREQSEL_SPI1TX       S3C2412_DMAREQSEL_SRC(2)
+#define S3C2412_DMAREQSEL_SPI1RX       S3C2412_DMAREQSEL_SRC(3)
+#define S3C2412_DMAREQSEL_I2STX                S3C2412_DMAREQSEL_SRC(4)
+#define S3C2412_DMAREQSEL_I2SRX                S3C2412_DMAREQSEL_SRC(5)
+#define S3C2412_DMAREQSEL_TIMER                S3C2412_DMAREQSEL_SRC(9)
+#define S3C2412_DMAREQSEL_SDI          S3C2412_DMAREQSEL_SRC(10)
+#define S3C2412_DMAREQSEL_USBEP1       S3C2412_DMAREQSEL_SRC(13)
+#define S3C2412_DMAREQSEL_USBEP2       S3C2412_DMAREQSEL_SRC(14)
+#define S3C2412_DMAREQSEL_USBEP3       S3C2412_DMAREQSEL_SRC(15)
+#define S3C2412_DMAREQSEL_USBEP4       S3C2412_DMAREQSEL_SRC(16)
+#define S3C2412_DMAREQSEL_XDREQ0       S3C2412_DMAREQSEL_SRC(17)
+#define S3C2412_DMAREQSEL_XDREQ1       S3C2412_DMAREQSEL_SRC(18)
+#define S3C2412_DMAREQSEL_UART0_0      S3C2412_DMAREQSEL_SRC(19)
+#define S3C2412_DMAREQSEL_UART0_1      S3C2412_DMAREQSEL_SRC(20)
+#define S3C2412_DMAREQSEL_UART1_0      S3C2412_DMAREQSEL_SRC(21)
+#define S3C2412_DMAREQSEL_UART1_1      S3C2412_DMAREQSEL_SRC(22)
+#define S3C2412_DMAREQSEL_UART2_0      S3C2412_DMAREQSEL_SRC(23)
+#define S3C2412_DMAREQSEL_UART2_1      S3C2412_DMAREQSEL_SRC(24)
+
+#endif
 #endif /* __ASM_ARCH_DMA_H */