diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3/include/spacewire.h')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/spacewire.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/include/spacewire.h b/c/src/lib/libbsp/sparc/leon3/include/spacewire.h new file mode 100644 index 0000000000..516cc93772 --- /dev/null +++ b/c/src/lib/libbsp/sparc/leon3/include/spacewire.h @@ -0,0 +1,186 @@ +/* + * Macros used for Spacewire bus + * + * COPYRIGHT (c) 2004. + * Gaisler Research + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef __SPACEWIRE_h +#define __SPACEWIRE_h + +typedef struct { + volatile unsigned int ctrl; + volatile unsigned int status; + volatile unsigned int nodeaddr; + volatile unsigned int clockdiv; + volatile unsigned int destkey; + volatile unsigned int pad1,pad2,pad3; + + volatile unsigned int dma0ctrl; /* 0x20 */ + volatile unsigned int dma0rxmax; + volatile unsigned int dma0txdesc; + volatile unsigned int dma0rxdesc; +} LEON3_SPACEWIRE_Regs_Map; + +typedef struct { + volatile unsigned int ctrl; + volatile unsigned int addr; +} SPACEWIRE_RXBD; + +typedef struct { + volatile unsigned int ctrl; + volatile unsigned int addr_header; + volatile unsigned int len; + volatile unsigned int addr_data; +} SPACEWIRE_TXBD; + +#define SPACEWIRE_BDTABLE_SIZE 0x400 +#define SPACEWIRE_TXPCK_SIZE 1024 +#define SPACEWIRE_RXPCK_SIZE 1024 +#define SPACEWIRE_TXBUFS_NR 1 +#define SPACEWIRE_RXBUFS_NR 2 +#define SPW_BUFMALLOC 1 + +#define SPW_ALIGN(p,c) ((((unsigned int)(p))+((c)-1))&~((c)-1)) + +int spacewire_setattibutes(int minor, int nodeaddr, int proto, int dest); + +typedef struct { + unsigned int nodeaddr; + unsigned int destnodeaddr; + unsigned int proto; + unsigned int destkey; + unsigned int maxfreq; + unsigned int clkdiv; + unsigned int rxmaxlen; + + unsigned int is_rmap,is_rxunaligned,is_rmapcrc; + + unsigned int txcur,rxcur,rxbufcur; + unsigned int txbufsize,rxbufsize; + unsigned int txbufcnt,rxbufcnt; + char *ptr_rxbuf0,*ptr_txbuf0; + unsigned int irq; + + SPACEWIRE_RXBD *rx; + SPACEWIRE_TXBD *tx; + + char _rxtable[SPACEWIRE_BDTABLE_SIZE*2]; + char _txtable[SPACEWIRE_BDTABLE_SIZE*2]; + +#ifndef SPW_BUFMALLOC + char _rxbuf0[SPACEWIRE_RXPCK_SIZE*SPACEWIRE_RXBUFS_NR]; + char _txbuf0[SPACEWIRE_TXPCK_SIZE*SPACEWIRE_TXBUFS_NR]; +#endif + + volatile LEON3_SPACEWIRE_Regs_Map *regs; +} SPACEWIRE_PARAM; + +int _SPW_READ(void *addr); +#define SPW_READ(addr) _SPW_READ((void *)(addr)) +#define SPW_WRITE(addr,v) *addr=v + +#define SPACEWIRE_MAX_CORENR 2 +extern SPACEWIRE_PARAM LEON3_Spacewire[SPACEWIRE_MAX_CORENR]; + +#define SPW_PARAM(c) (LEON3_Spacewire[c]) +#define SPW_REG(c,r) (SPW_PARAM(c).regs->r) +#define SPW_REG_CTRL(c) SPW_REG(c,ctrl) +#define SPW_REG_STATUS(c) SPW_REG(c,status) +#define SPW_REG_NODEADDR(c) SPW_REG(c,nodeaddr) + +#define SPW_CTRL_READ(c) SPW_READ(&SPW_REG_CTRL(c)) +#define SPW_CTRL_WRITE(c,v) SPW_WRITE(&SPW_REG_CTRL(c),v) +#define SPW_STATUS_READ(c) SPW_READ(&SPW_REG_STATUS(c)) +#define SPW_STATUS_WRITE(c,v) SPW_WRITE(&SPW_REG_STATUS(c),v) + +#define SPW_LINKSTATE(c) (((c) >> 21) & 0x7) + +#define SPW_NODEADDR_READ(c) SPW_BYPASSCACHE(&SPW_NODEADDR(c)) +#define SPW_NODEADDR_WRITE(c,v) SPW_NODEADDR(c) = v + +#define SPACEWIRE_RXNR(c) ((c&~(SPACEWIRE_BDTABLE_SIZE-1))>>3) +#define SPACEWIRE_TXNR(c) ((c&~(SPACEWIRE_BDTABLE_SIZE-1))>>4) + +#define SPACEWIRE_RXBD_LENGTH 0x1ffffff +#define SPACEWIRE_RXBD_EN (1<<25) +#define SPACEWIRE_RXBD_WR (1<<26) +#define SPACEWIRE_RXBD_IE (1<<27) + +#define SPACEWIRE_RXBD_EEP (1<<28) +#define SPACEWIRE_RXBD_EHC (1<<29) +#define SPACEWIRE_RXBD_EDC (1<<30) +#define SPACEWIRE_RXBD_ETR (1<<31) + +#define SPACEWIRE_RXBD_ERROR (SPACEWIRE_RXBD_EEP | \ + SPACEWIRE_RXBD_EHC | \ + SPACEWIRE_RXBD_EDC | \ + SPACEWIRE_RXBD_ETR) + +#define SPACEWIRE_RXBD_RMAPERROR (SPACEWIRE_RXBD_EHC | SPACEWIRE_RXBD_EDC) + +#define SPACEWIRE_RXBD_LENGTH(c) ((c)&0xffffff) +#define SPACEWIRE_PCKHEAD 2 + +#define SPACEWIRE_TXBD_LENGTH 0xffffff + +#define SPACEWIRE_TXBD_EN (1<<12) +#define SPACEWIRE_TXBD_WR (1<<13) +#define SPACEWIRE_TXBD_IE (1<<14) + +#define SPACEWIRE_TXBD_LE (1<<15) + +#define SPACEWIRE_TXBD_ERROR (SPACEWIRE_TXBD_LE) + +#define SPACEWIRE_CTRL_RA (1<<31) +#define SPACEWIRE_CTRL_RX (1<<30) +#define SPACEWIRE_CTRL_RC (1<<29) + +#define SPACEWIRE_CTRL_RESET (1<<6) +#define SPACEWIRE_CTRL_LINKSTART (1<<1) +#define SPACEWIRE_CTRL_LINKDISABLE (1<<0) + +#define SPACEWIRE_DMACTRL_TXEN (1<<0) +#define SPACEWIRE_DMACTRL_RXEN (1<<1) +#define SPACEWIRE_DMACTRL_TXIE (1<<2) +#define SPACEWIRE_DMACTRL_RXIE (1<<3) + +#define SPACEWIRE_DMACTRL_AI (1<<4) +#define SPACEWIRE_DMACTRL_PS (1<<5) +#define SPACEWIRE_DMACTRL_PR (1<<6) +#define SPACEWIRE_DMACTRL_TA (1<<7) +#define SPACEWIRE_DMACTRL_RA (1<<8) + +#define SPACEWIRE_DMACTRL_RD (1<<11) +#define SPACEWIRE_DMACTRL_NS (1<<12) + +#define SPACEWIRE_PREPAREMASK_TX (SPACEWIRE_DMACTRL_RXEN | SPACEWIRE_DMACTRL_RXIE | SPACEWIRE_DMACTRL_PS | SPACEWIRE_DMACTRL_TA | SPACEWIRE_DMACTRL_RD) +#define SPACEWIRE_PREPAREMASK_RX (SPACEWIRE_DMACTRL_TXEN | SPACEWIRE_DMACTRL_TXIE | SPACEWIRE_DMACTRL_AI | SPACEWIRE_DMACTRL_PR | SPACEWIRE_DMACTRL_RA) + + +#define SPACEWIRE_IOCTRL_SET_NODEADDR 1 +#define SPACEWIRE_IOCTRL_SET_PROTOCOL 2 +#define SPACEWIRE_IOCTRL_SET_DESTNODEADDR 3 +#define SPACEWIRE_IOCTRL_GET_COREBASEADDR 4 +#define SPACEWIRE_IOCTRL_GET_COREIRQ 5 +#define SPACEWIRE_IOCTRL_SET_PACKETSIZE 6 +#define SPACEWIRE_IOCTRL_GETPACKET 7 +#define SPACEWIRE_IOCTRL_PUTPACKET 8 + +typedef struct { + unsigned int txsize, rxsize; +} spw_ioctl_packetsize; + +typedef struct { + char *buf; + int buf_size; + int ret_size; +} spw_ioctl_packet; + +#endif |