#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;
/* 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 */
/* "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 */
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 */
#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
#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)
*/
#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
#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);
/* 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.
*/
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 );
+void * au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp);
+
+/*
+ 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 put_source_flags(chanid,buf,nbytes,flags) au1xxx_dbdma_put_source_flags(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)
+#define put_dest_flags(chanid,buf,nbytes,flags) au1xxx_dbdma_put_dest_flags(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_ */
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