1 files changed, 107 insertions, 17 deletions

diff --git a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h b/include/asm-mips/mach-au1x00/au1xxx_dbdma.h
index d5eb88cd7d51..ddbd9f5a2489 100644
--- a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h
+++ b/include/asm-mips/mach-au1x00/au1xxx_dbdma.h
@@ -45,7 +45,7 @@
 #define DDMA_GLOBAL_BASE        0xb4003000
 #define DDMA_CHANNEL_BASE       0xb4002000
 
-typedef struct dbdma_global {
+typedef volatile struct dbdma_global {
         u32     ddma_config;
         u32     ddma_intstat;
         u32     ddma_throttle;
@@ -62,7 +62,7 @@ typedef struct dbdma_global {
 
 /* The structure of a DMA Channel.
 */
-typedef struct au1xxx_dma_channel {
+typedef volatile struct au1xxx_dma_channel {
         u32     ddma_cfg;       /* See below */
         u32     ddma_desptr;    /* 32-byte aligned pointer to descriptor */
         u32     ddma_statptr;   /* word aligned pointer to status word */
@@ -98,7 +98,7 @@ typedef struct au1xxx_dma_channel {
 /* "Standard" DDMA Descriptor.
  * Must be 32-byte aligned.
  */
-typedef struct au1xxx_ddma_desc {
+typedef volatile struct au1xxx_ddma_desc {
         u32     dscr_cmd0;              /* See below */
         u32     dscr_cmd1;              /* See below */
         u32     dscr_source0;           /* source phys address */
@@ -107,6 +107,12 @@ typedef struct au1xxx_ddma_desc {
         u32     dscr_dest1;             /* See below */
         u32     dscr_stat;              /* completion status */
         u32     dscr_nxtptr;            /* Next descriptor pointer (mostly) */
+        /* First 32bytes are HW specific!!!
+           Lets have some SW data following.. make sure its 32bytes
+         */
+        u32     sw_status;
+        u32     sw_context;
+        u32     sw_reserved[6];
 } au1x_ddma_desc_t;
 
 #define DSCR_CMD0_V             (1 << 31)       /* Descriptor valid */
@@ -125,8 +131,11 @@ typedef struct au1xxx_ddma_desc {
 #define DSCR_CMD0_CV            (0x1 << 2)      /* Clear Valid when done */
 #define DSCR_CMD0_ST_MASK       (0x3 << 0)      /* Status instruction */
 
+#define SW_STATUS_INUSE         (1<<0)
+
 /* Command 0 device IDs.
 */
+#ifdef CONFIG_SOC_AU1550
 #define DSCR_CMD0_UART0_TX      0
 #define DSCR_CMD0_UART0_RX      1
 #define DSCR_CMD0_UART3_TX      2
@@ -155,9 +164,45 @@ typedef struct au1xxx_ddma_desc {
 #define DSCR_CMD0_MAC0_TX       25
 #define DSCR_CMD0_MAC1_RX       26
 #define DSCR_CMD0_MAC1_TX       27
+#endif /* CONFIG_SOC_AU1550 */
+
+#ifdef CONFIG_SOC_AU1200
+#define DSCR_CMD0_UART0_TX      0
+#define DSCR_CMD0_UART0_RX      1
+#define DSCR_CMD0_UART1_TX      2
+#define DSCR_CMD0_UART1_RX      3
+#define DSCR_CMD0_DMA_REQ0      4
+#define DSCR_CMD0_DMA_REQ1      5
+#define DSCR_CMD0_MAE_BE        6
+#define DSCR_CMD0_MAE_FE        7
+#define DSCR_CMD0_SDMS_TX0      8
+#define DSCR_CMD0_SDMS_RX0      9
+#define DSCR_CMD0_SDMS_TX1      10
+#define DSCR_CMD0_SDMS_RX1      11
+#define DSCR_CMD0_AES_TX        13
+#define DSCR_CMD0_AES_RX        12
+#define DSCR_CMD0_PSC0_TX       14
+#define DSCR_CMD0_PSC0_RX       15
+#define DSCR_CMD0_PSC1_TX       16
+#define DSCR_CMD0_PSC1_RX       17
+#define DSCR_CMD0_CIM_RXA       18
+#define DSCR_CMD0_CIM_RXB       19
+#define DSCR_CMD0_CIM_RXC       20
+#define DSCR_CMD0_MAE_BOTH      21
+#define DSCR_CMD0_LCD           22
+#define DSCR_CMD0_NAND_FLASH    23
+#define DSCR_CMD0_PSC0_SYNC     24
+#define DSCR_CMD0_PSC1_SYNC     25
+#define DSCR_CMD0_CIM_SYNC      26
+#endif /* CONFIG_SOC_AU1200 */
+
 #define DSCR_CMD0_THROTTLE      30
 #define DSCR_CMD0_ALWAYS        31
 #define DSCR_NDEV_IDS           32
+/* THis macro is used to find/create custom device types */
+#define DSCR_DEV2CUSTOM_ID(x,d) (((((x)&0xFFFF)<<8)|0x32000000)|((d)&0xFF))
+#define DSCR_CUSTOM2DEV_ID(x)   ((x)&0xFF)
+
 
 #define DSCR_CMD0_SID(x)        (((x) & 0x1f) << 25)
 #define DSCR_CMD0_DID(x)        (((x) & 0x1f) << 20)
@@ -246,6 +291,43 @@ typedef struct au1xxx_ddma_desc {
 */
 #define NUM_DBDMA_CHANS 16
 
+/*
+ * Ddma API definitions
+ * FIXME: may not fit to this header file
+ */
+typedef struct dbdma_device_table {
+        u32             dev_id;
+        u32             dev_flags;
+        u32             dev_tsize;
+        u32             dev_devwidth;
+        u32             dev_physaddr;           /* If FIFO */
+        u32             dev_intlevel;
+        u32             dev_intpolarity;
+} dbdev_tab_t;
+
+
+typedef struct dbdma_chan_config {
+        spinlock_t      lock;
+
+        u32                     chan_flags;
+        u32                     chan_index;
+        dbdev_tab_t             *chan_src;
+        dbdev_tab_t             *chan_dest;
+        au1x_dma_chan_t         *chan_ptr;
+        au1x_ddma_desc_t        *chan_desc_base;
+        au1x_ddma_desc_t        *get_ptr, *put_ptr, *cur_ptr;
+        void                    *chan_callparam;
+        void (*chan_callback)(int, void *, struct pt_regs *);
+} chan_tab_t;
+
+#define DEV_FLAGS_INUSE         (1 << 0)
+#define DEV_FLAGS_ANYUSE        (1 << 1)
+#define DEV_FLAGS_OUT           (1 << 2)
+#define DEV_FLAGS_IN            (1 << 3)
+#define DEV_FLAGS_BURSTABLE (1 << 4)
+#define DEV_FLAGS_SYNC          (1 << 5)
+/* end Ddma API definitions */
+
 /* External functions for drivers to use.
 */
 /* Use this to allocate a dbdma channel.  The device ids are one of the
@@ -258,18 +340,6 @@ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
 
 #define DBDMA_MEM_CHAN  DSCR_CMD0_ALWAYS
 
-/* ACK!  These should be in a board specific description file.
-*/
-#ifdef CONFIG_MIPS_PB1550
-#define DBDMA_AC97_TX_CHAN DSCR_CMD0_PSC1_TX
-#define DBDMA_AC97_RX_CHAN DSCR_CMD0_PSC1_RX
-#endif
-#ifdef CONFIG_MIPS_DB1550
-#define DBDMA_AC97_TX_CHAN DSCR_CMD0_PSC1_TX
-#define DBDMA_AC97_RX_CHAN DSCR_CMD0_PSC1_RX
-#endif
-
-
 /* Set the device width of a in/out fifo.
 */
 u32 au1xxx_dbdma_set_devwidth(u32 chanid, int bits);
@@ -280,8 +350,8 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries);
 
 /* Put buffers on source/destination descriptors.
 */
-u32 au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes);
-u32 au1xxx_dbdma_put_dest(u32 chanid, void *buf, int nbytes);
+u32 _au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags);
+u32 _au1xxx_dbdma_put_dest(u32 chanid, void *buf, int nbytes, u32 flags);
 
 /* Get a buffer from the destination descriptor.
 */
@@ -295,5 +365,25 @@ u32 au1xxx_get_dma_residue(u32 chanid);
 void au1xxx_dbdma_chan_free(u32 chanid);
 void au1xxx_dbdma_dump(u32 chanid);
 
+u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr );
+
+u32 au1xxx_ddma_add_device( dbdev_tab_t *dev );
+
+/*
+        Some compatibilty macros --
+                Needed to make changes to API without breaking existing drivers
+*/
+#define au1xxx_dbdma_put_source(chanid,buf,nbytes)_au1xxx_dbdma_put_source(chanid, buf, nbytes, DDMA_FLAGS_IE)
+#define au1xxx_dbdma_put_source_flags(chanid,buf,nbytes,flags) _au1xxx_dbdma_put_source(chanid, buf, nbytes, flags)
+
+#define au1xxx_dbdma_put_dest(chanid,buf,nbytes) _au1xxx_dbdma_put_dest(chanid, buf, nbytes, DDMA_FLAGS_IE)
+#define au1xxx_dbdma_put_dest_flags(chanid,buf,nbytes,flags) _au1xxx_dbdma_put_dest(chanid, buf, nbytes, flags)
+
+/*
+ *      Flags for the put_source/put_dest functions.
+ */
+#define DDMA_FLAGS_IE   (1<<0)
+#define DDMA_FLAGS_NOIE (1<<1)
+
 #endif /* _LANGUAGE_ASSEMBLY */
 #endif /* _AU1000_DBDMA_H_ */