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/**
* @file
* @ingroup sparc_bsp
* @defgroup 1553 B1553BRM
* @ingroup 1553
* @brief Macros used for brm controller
*/
/*
* COPYRIGHT (c) 2006.
* 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.org/license/LICENSE.
*
*/
#ifndef __B1553BRM_H__
#define __B1553BRM_H__
#include <ambapp.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_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 4096 /* 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 */
/* Register RAMON FPGA BRM driver, calls brm_register */
int brm_register_leon3_ramon_fpga(void);
/* Register RAMON ASIC BRM driver, calls brm_register */
int brm_register_leon3_ramon_asic(void);
#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
/* Register BRM driver
* See (struct brm_reg).w_ctrl for clksel and clkdiv.
* See Enhanced register (the least signinficant 2 bits) in BRM Core for brm_freq
* bus = &ambapp_plb for LEON3. (LEON2 not yet supported for this driver)
*/
int b1553brm_register(struct ambapp_bus *bus, unsigned int clksel, unsigned int clkdiv, unsigned int brm_freq);
#ifdef __cplusplus
}
#endif
#endif /* __BRM_H__ */
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