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Diffstat (limited to 'bsps/sparc/include/bsp/b1553brm.h')
| -rw-r--r-- | bsps/sparc/include/bsp/b1553brm.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/bsps/sparc/include/bsp/b1553brm.h b/bsps/sparc/include/bsp/b1553brm.h new file mode 100644 index 0000000000..eba0716f75 --- /dev/null +++ b/bsps/sparc/include/bsp/b1553brm.h @@ -0,0 +1,178 @@ +/** + * @file + * @ingroup sparc_bsp + * @defgroup 1553 B1553BRM + * @ingroup 1553 + * @brief B1553BRM device driver + */ + +/* + * COPYRIGHT (c) 2006. + * Cobham Gaisler AB. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef __B1553BRM_H__ +#define __B1553BRM_H__ + +#include <drvmgr/drvmgr.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct brm_reg { + volatile unsigned int ctrl; /* 0x00 */ + volatile unsigned int oper; /* 0x04 */ + volatile unsigned int cur_cmd; /* 0x08 */ + volatile unsigned int imask; /* 0x0C */ + volatile unsigned int ipend; /* 0x10 */ + volatile unsigned int ipoint; /* 0x14 */ + volatile unsigned int bit_reg; /* 0x18 */ + volatile unsigned int ttag; /* 0x1C */ + volatile unsigned int dpoint; /* 0x20 */ + volatile unsigned int sw; /* 0x24 */ + volatile unsigned int initcount; /* 0x28 */ + volatile unsigned int mcpoint; /* 0x2C */ + volatile unsigned int mdpoint; /* 0x30 */ + volatile unsigned int mbc; /* 0x34 */ + volatile unsigned int mfilta; /* 0x38 */ + volatile unsigned int mfiltb; /* 0x3C */ + volatile unsigned int rt_cmd_leg[16]; /* 0x40-0x80 */ + volatile unsigned int enhanced; /* 0x84 */ + + volatile unsigned int dummy[31]; + + volatile unsigned int w_ctrl; /* 0x100 */ + volatile unsigned int w_irqctrl; /* 0x104 */ + volatile unsigned int w_ahbaddr; /* 0x108 */ +}; + +struct bm_msg { + unsigned short miw; + unsigned short cw1; + unsigned short cw2; + unsigned short sw1; + unsigned short sw2; + unsigned short time; + unsigned short data[32]; +}; + +struct rt_msg { + unsigned short miw; + unsigned short time; + unsigned short data[32]; + unsigned short desc; +}; + +/* + * rtaddr[0] and subaddr[0] : RT address and subaddress (for rt-rt receive addresses) + * rtaddr[1] and subaddr[1] : Only for RT-RT. Transmit addresses. + * + * wc : word count, or mode code if subaddress 0 or 31. + * + * ctrl, bit 0 (TR) : 1 - transmit, 0 - receive. Ignored for rt-rt + * bit 1 (RTRT) : 1 - rt to rt, 0 - normal + * bit 2 (AB) : 1 - Bus B, 0 - Bus A + * bit 4:3 (Retry) : 1 - 1, 2 - 2, 3 - 3, 0 - 4 + * bit 5 (END) : End of list + * bit 15 (BAME) : Message error. Set by BRM if protocol error is detected + * + * tsw[0] : status word + * tsw[1] : Only for rt-rt, status word 2 + * + * data : data to be transmitted, or received data + * + */ +struct bc_msg { + unsigned char rtaddr[2]; + unsigned char subaddr[2]; + unsigned short wc; + unsigned short ctrl; + unsigned short tsw[2]; + unsigned short data[32]; +}; + +/* BC control bits */ +#define BC_TR 0x0001 +#define BC_RTRT 0x0002 +#define BC_BUSA 0x0004 +#define BC_EOL 0x0020 +#define BC_SKIP 0x0040 +#define BC_BAME 0x8000 + +#define BRM_MBC_IRQ 1 /* Monitor Block Counter irq */ +#define BRM_CBA_IRQ 2 /* Command Block Accessed irq */ +#define BRM_RTF_IRQ 4 /* Retry Fail irq */ +#define BRM_ILLOP_IRQ 8 /* Illogical Opcode irq */ +#define BRM_BC_ILLCMD_IRQ 16 /* BC Illocigal Command irq */ +#define BRM_EOL_IRQ 32 /* End Of List irq */ +#define BRM_RT_ILLCMD_IRQ 128 /* RT Illegal Command irq */ +#define BRM_IXEQ0_IRQ 256 /* Index Equal Zero irq */ +#define BRM_BDRCV_IRQ 512 /* Broadcast Command Received irq */ +#define BRM_SUBAD_IRQ 1024 /* Subaddress Accessed irq */ +#define BRM_MERR_IRQ 2048 /* Message Error irq */ +#define BRM_TAPF_IRQ 8192 /* Terminal Address Parity Fail irq */ +#define BRM_WRAPF_IRQ 16384 /* Wrap Fail irq */ +#define BRM_DMAF_IRQ 32768 /* DMA Fail irq */ + + +#define BRM_SET_MODE 0 +#define BRM_SET_BUS 1 +#define BRM_SET_MSGTO 2 +#define BRM_SET_RT_ADDR 3 +#define BRM_SET_STD 4 +#define BRM_SET_BCE 5 +#define BRM_TX_BLOCK 7 +#define BRM_RX_BLOCK 8 + +#define BRM_DO_LIST 10 +#define BRM_LIST_DONE 11 + +#define BRM_CLR_STATUS 12 +#define BRM_GET_STATUS 13 +#define BRM_SET_EVENTID 14 + +#define GET_ERROR_DESCRIPTOR(event_in) (event_in>>16) + + +#define BRM_MODE_BC 0x0 +#define BRM_MODE_RT 0x1 +#define BRM_MODE_BM 0x2 +#define BRM_MODE_BM_RT 0x3 /* both RT and BM */ + +#define BRM_FREQ_12MHZ 0 +#define BRM_FREQ_16MHZ 1 +#define BRM_FREQ_20MHZ 2 +#define BRM_FREQ_24MHZ 3 +#define BRM_FREQ_MASK 0x3 + +#define CLKDIV_MASK 0xf + +#define CLKSEL_MASK 0x7 + +void b1553brm_register_drv(void); + +/* Default initialization of the RT legalization registers. The values in this + * array are written to the registers on boot driver initialization and when + * the user set the mode to RT-mode by calling ioctl(BRM_SET_MODE). Thus, + * update the array first then call ioctl(BRM_SET_MODE) for the changes to have + * an affect. Note that this affects all B1553BRM RTs in the system. + */ +extern unsigned short b1553brm_rt_cmd_legalize[16]; + +/* Print information about all BRM devices handled by this driver */ +void b1553brm_print(int options); + +/* Print information about one BRM device */ +void b1553brm_print_dev(struct drvmgr_dev *dev, int options); + +#ifdef __cplusplus +} +#endif + +#endif /* __BRM_H__ */ + |