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   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * caddy.c -- esd VME8349 support for "missing" access modes in TSI148.
   4  * Copyright (c) 2009 esd gmbh.
   5  *
   6  * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
   7  */
   8
   9 #ifndef __CADDY_H__
  10 #define __CADDY_H__
  11
  12 #define CMD_SIZE        1024
  13 #define ANSWER_SIZE     1024
  14 #define CADDY_MAGIC     "esd vme8349 V1.0"
  15
  16 enum caddy_cmds {
  17         CADDY_CMD_IO_READ_8,
  18         CADDY_CMD_IO_READ_16,
  19         CADDY_CMD_IO_READ_32,
  20         CADDY_CMD_IO_WRITE_8,
  21         CADDY_CMD_IO_WRITE_16,
  22         CADDY_CMD_IO_WRITE_32,
  23         CADDY_CMD_CONFIG_READ_8,
  24         CADDY_CMD_CONFIG_READ_16,
  25         CADDY_CMD_CONFIG_READ_32,
  26         CADDY_CMD_CONFIG_WRITE_8,
  27         CADDY_CMD_CONFIG_WRITE_16,
  28         CADDY_CMD_CONFIG_WRITE_32,
  29 };
  30
  31 struct caddy_cmd {
  32         uint32_t cmd;
  33         uint32_t issue;
  34         uint32_t addr;
  35         uint32_t par[5];
  36 };
  37
  38 struct caddy_answer {
  39         uint32_t answer;
  40         uint32_t issue;
  41         uint32_t status;
  42         uint32_t par[5];
  43 };
  44
  45 struct caddy_interface {
  46         uint8_t  magic[16];
  47         uint32_t cmd_in;
  48         uint32_t cmd_out;
  49         uint32_t heartbeat;
  50         uint32_t reserved1;
  51         struct caddy_cmd cmd[CMD_SIZE];
  52         uint32_t answer_in;
  53         uint32_t answer_out;
  54         uint32_t reserved2;
  55         uint32_t reserved3;
  56         struct caddy_answer answer[CMD_SIZE];
  57 };
  58
  59 #endif /* of __CADDY_H__ */