netjet.h

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/*
 * NETjet common header file
 *
 * Author   Karsten Keil
 *              based on work of Matt Henderson and Daniel Potts,
 *              Traverse Technologies P/L www.traverse.com.au
 *
 * Copyright 2009  by Karsten Keil <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#define NJ_CTRL         0x00
#define NJ_DMACTRL      0x01
#define NJ_AUXCTRL      0x02
#define NJ_AUXDATA      0x03
#define NJ_IRQMASK0     0x04
#define NJ_IRQMASK1     0x05
#define NJ_IRQSTAT0     0x06
#define NJ_IRQSTAT1     0x07
#define NJ_DMA_READ_START   0x08
#define NJ_DMA_READ_IRQ     0x0c
#define NJ_DMA_READ_END     0x10
#define NJ_DMA_READ_ADR     0x14
#define NJ_DMA_WRITE_START  0x18
#define NJ_DMA_WRITE_IRQ    0x1c
#define NJ_DMA_WRITE_END    0x20
#define NJ_DMA_WRITE_ADR    0x24
#define NJ_PULSE_CNT        0x28

#define NJ_ISAC_OFF     0xc0
#define NJ_ISACIRQ      0x10

#define NJ_IRQM0_RD_MASK    0x03
#define NJ_IRQM0_RD_IRQ     0x01
#define NJ_IRQM0_RD_END     0x02
#define NJ_IRQM0_WR_MASK    0x0c
#define NJ_IRQM0_WR_IRQ     0x04
#define NJ_IRQM0_WR_END     0x08

/* one page here is no need to be smaller */
#define NJ_DMA_SIZE     4096
/* 2 * 64 byte is a compromise between IRQ count and latency */
#define NJ_DMA_RXSIZE       128  /* 2 * 64 */
#define NJ_DMA_TXSIZE       128  /* 2 * 64 */