include/gdsys_fpga.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2010
   4  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
   5  */
   6
   7 #ifndef __GDSYS_FPGA_H
   8 #define __GDSYS_FPGA_H
   9
  10 #ifdef CONFIG_GDSYS_LEGACY_DRIVERS
  11 int init_func_fpga(void);
  12
  13 enum {
  14         FPGA_STATE_DONE_FAILED = 1 << 0,
  15         FPGA_STATE_REFLECTION_FAILED = 1 << 1,
  16         FPGA_STATE_PLATFORM = 1 << 2,
  17 };
  18
  19 int get_fpga_state(unsigned dev);
  20
  21 int fpga_set_reg(u32 fpga, u16 *reg, off_t regoff, u16 data);
  22 int fpga_get_reg(u32 fpga, u16 *reg, off_t regoff, u16 *data);
  23
  24 extern struct ihs_fpga *fpga_ptr[];
  25
  26 #define FPGA_SET_REG(ix, fld, val) \
  27         fpga_set_reg((ix), \
  28                      &fpga_ptr[ix]->fld, \
  29                      offsetof(struct ihs_fpga, fld), \
  30                      val)
  31
  32 #define FPGA_GET_REG(ix, fld, val) \
  33         fpga_get_reg((ix), \
  34                      &fpga_ptr[ix]->fld, \
  35                      offsetof(struct ihs_fpga, fld), \
  36                      val)
  37 #endif
  38
  39 struct ihs_gpio {
  40         u16 read;
  41         u16 clear;
  42         u16 set;
  43 };
  44
  45 struct ihs_i2c {
  46         u16 interrupt_status;
  47         u16 interrupt_enable;
  48         u16 write_mailbox_ext;
  49         u16 write_mailbox;
  50         u16 read_mailbox_ext;
  51         u16 read_mailbox;
  52 };
  53
  54 struct ihs_osd {
  55         u16 version;
  56         u16 features;
  57         u16 control;
  58         u16 xy_size;
  59         u16 xy_scale;
  60         u16 x_pos;
  61         u16 y_pos;
  62 };
  63
  64 struct ihs_mdio {
  65         u16 control;
  66         u16 address_data;
  67         u16 rx_data;
  68 };
  69
  70 struct ihs_io_ep {
  71         u16 transmit_data;
  72         u16 rx_tx_control;
  73         u16 receive_data;
  74         u16 rx_tx_status;
  75         u16 reserved;
  76         u16 device_address;
  77         u16 target_address;
  78 };
  79
  80 #ifdef CONFIG_NEO
  81 struct ihs_fpga {
  82         u16 reflection_low;     /* 0x0000 */
  83         u16 versions;           /* 0x0002 */
  84         u16 fpga_features;      /* 0x0004 */
  85         u16 fpga_version;       /* 0x0006 */
  86         u16 reserved_0[8187];   /* 0x0008 */
  87         u16 reflection_high;    /* 0x3ffe */
  88 };
  89 #endif
  90
  91 #endif