diff options
Diffstat (limited to 'include/asm-mips/mach-au1x00/au1xxx_dbdma.h')
| -rw-r--r-- | include/asm-mips/mach-au1x00/au1xxx_dbdma.h | 128 |
1 files changed, 111 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..b327bcd3fee1 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 +365,29 @@ 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 ); +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_ */ |