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/*
* 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
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