drivers/isdn/hardware/mISDN/netjet.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * NETjet common header file
   4  *
   5  * Author       Karsten Keil
   6  *              based on work of Matt Henderson and Daniel Potts,
   7  *              Traverse Technologies P/L www.traverse.com.au
   8  *
   9  * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
  10  */
  11
  12 #define NJ_CTRL                 0x00
  13 #define NJ_DMACTRL              0x01
  14 #define NJ_AUXCTRL              0x02
  15 #define NJ_AUXDATA              0x03
  16 #define NJ_IRQMASK0             0x04
  17 #define NJ_IRQMASK1             0x05
  18 #define NJ_IRQSTAT0             0x06
  19 #define NJ_IRQSTAT1             0x07
  20 #define NJ_DMA_READ_START       0x08
  21 #define NJ_DMA_READ_IRQ         0x0c
  22 #define NJ_DMA_READ_END         0x10
  23 #define NJ_DMA_READ_ADR         0x14
  24 #define NJ_DMA_WRITE_START      0x18
  25 #define NJ_DMA_WRITE_IRQ        0x1c
  26 #define NJ_DMA_WRITE_END        0x20
  27 #define NJ_DMA_WRITE_ADR        0x24
  28 #define NJ_PULSE_CNT            0x28
  29
  30 #define NJ_ISAC_OFF             0xc0
  31 #define NJ_ISACIRQ              0x10
  32
  33 #define NJ_IRQM0_RD_MASK        0x03
  34 #define NJ_IRQM0_RD_IRQ         0x01
  35 #define NJ_IRQM0_RD_END         0x02
  36 #define NJ_IRQM0_WR_MASK        0x0c
  37 #define NJ_IRQM0_WR_IRQ         0x04
  38 #define NJ_IRQM0_WR_END         0x08
  39
  40 /* one page here is no need to be smaller */
  41 #define NJ_DMA_SIZE             4096
  42 /* 2 * 64 byte is a compromise between IRQ count and latency */
  43 #define NJ_DMA_RXSIZE           128  /* 2 * 64 */
  44 #define NJ_DMA_TXSIZE           128  /* 2 * 64 */