drivers/staging/gpib/cec/cec.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 /***************************************************************************
   4  *    copyright            : (C) 2002 by Frank Mori Hess
   5  ***************************************************************************/
   6
   7 #include "nec7210.h"
   8 #include "gpibP.h"
   9 #include "plx9050.h"
  10
  11 struct cec_priv  {
  12         struct nec7210_priv nec7210_priv;
  13         struct pci_dev *pci_device;
  14         // base address for plx9052 pci chip
  15         unsigned long plx_iobase;
  16         unsigned int irq;
  17 };
  18
  19 // interfaces
  20 extern gpib_interface_t cec_pci_interface;
  21 extern gpib_interface_t cec_pcmcia_interface;
  22
  23 // interface functions
  24 int cec_read(gpib_board_t *board, uint8_t *buffer, size_t length, int *end, size_t *bytes_read);
  25 int cec_write(gpib_board_t *board, uint8_t *buffer, size_t length, int send_eoi,
  26               size_t *bytes_written);
  27 int cec_command(gpib_board_t *board, uint8_t *buffer, size_t length, size_t *bytes_written);
  28 int cec_take_control(gpib_board_t *board, int synchronous);
  29 int cec_go_to_standby(gpib_board_t *board);
  30 void cec_request_system_control(gpib_board_t *board, int request_control);
  31 void cec_interface_clear(gpib_board_t *board, int assert);
  32 void cec_remote_enable(gpib_board_t *board, int enable);
  33 int cec_enable_eos(gpib_board_t *board, uint8_t eos_byte, int compare_8_bits);
  34 void cec_disable_eos(gpib_board_t *board);
  35 unsigned int cec_update_status(gpib_board_t *board, unsigned int clear_mask);
  36 int cec_primary_address(gpib_board_t *board, unsigned int address);
  37 int cec_secondary_address(gpib_board_t *board, unsigned int address, int enable);
  38 int cec_parallel_poll(gpib_board_t *board, uint8_t *result);
  39 void cec_parallel_poll_configure(gpib_board_t *board, uint8_t configuration);
  40 void cec_parallel_poll_response(gpib_board_t *board, int ist);
  41 void cec_serial_poll_response(gpib_board_t *board, uint8_t status);
  42 void cec_return_to_local(gpib_board_t *board);
  43
  44 // interrupt service routines
  45 irqreturn_t cec_interrupt(int irq, void *arg);
  46
  47 // utility functions
  48 void cec_free_private(gpib_board_t *board);
  49 int cec_generic_attach(gpib_board_t *board);
  50 void cec_init(struct cec_priv *priv, const gpib_board_t *board);
  51
  52 // offset between consecutive nec7210 registers
  53 static const int cec_reg_offset = 1;