631e272b12
Some of the header files in "drivers/comedi/drivers/" are common enough to be useful to out-of-tree comedi driver modules. Using them for out-of-tree module builds is hampered by the headers being outside the "include/" directory so it is desirable to move them. There are about a couple of dozen Comedi device drivers that use the "comedi_8255" module to add digital I/O subdevices based on the venerable 8255 Programmable Peripheral Interface chip. The macros and declarations to use that module are in the "8255.h" header file in the comedi "drivers" directory. Move it into "include/linux/comedi/" and rename it to "comedi_8255.h" for naming consistency reasons. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20211117120604.117740-4-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
360 lines
9.0 KiB
C
360 lines
9.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Comedi driver for NI AT-MIO E series cards
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*
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* COMEDI - Linux Control and Measurement Device Interface
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* Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
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*/
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/*
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* Driver: ni_atmio
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* Description: National Instruments AT-MIO-E series
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* Author: ds
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* Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
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* AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
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* AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
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* Status: works
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* Updated: Thu May 1 20:03:02 CDT 2003
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*
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* The driver has 2.6 kernel isapnp support, and will automatically probe for
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* a supported board if the I/O base is left unspecified with comedi_config.
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* However, many of the isapnp id numbers are unknown. If your board is not
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* recognized, please send the output of 'cat /proc/isapnp' (you may need to
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* modprobe the isa-pnp module for /proc/isapnp to exist) so the id numbers
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* for your board can be added to the driver.
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*
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* Otherwise, you can use the isapnptools package to configure your board.
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* Use isapnp to configure the I/O base and IRQ for the board, and then pass
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* the same values as parameters in comedi_config. A sample isapnp.conf file
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* is included in the etc/ directory of Comedilib.
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*
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* Comedilib includes a utility to autocalibrate these boards. The boards
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* seem to boot into a state where the all calibration DACs are at one
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* extreme of their range, thus the default calibration is terrible.
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* Calibration at boot is strongly encouraged.
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*
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* To use the extended digital I/O on some of the boards, enable the
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* 8255 driver when configuring the Comedi source tree.
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*
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* External triggering is supported for some events. The channel index
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* (scan_begin_arg, etc.) maps to PFI0 - PFI9.
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*
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* Some of the more esoteric triggering possibilities of these boards are
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* not supported.
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*/
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/*
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* The real guts of the driver is in ni_mio_common.c, which is included
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* both here and in ni_pcimio.c
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*
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* Interrupt support added by Truxton Fulton <trux@truxton.com>
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*
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* References for specifications:
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* 340747b.pdf Register Level Programmer Manual (obsolete)
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* 340747c.pdf Register Level Programmer Manual (new)
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* DAQ-STC reference manual
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*
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* Other possibly relevant info:
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* 320517c.pdf User manual (obsolete)
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* 320517f.pdf User manual (new)
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* 320889a.pdf delete
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* 320906c.pdf maximum signal ratings
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* 321066a.pdf about 16x
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* 321791a.pdf discontinuation of at-mio-16e-10 rev. c
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* 321808a.pdf about at-mio-16e-10 rev P
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* 321837a.pdf discontinuation of at-mio-16de-10 rev d
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* 321838a.pdf about at-mio-16de-10 rev N
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*
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* ISSUES:
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* - need to deal with external reference for DAC, and other DAC
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* properties in board properties
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* - deal with at-mio-16de-10 revision D to N changes, etc.
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/comedi/comedidev.h>
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#include <linux/isapnp.h>
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#include <linux/comedi/comedi_8255.h>
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#include "ni_stc.h"
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/* AT specific setup */
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static const struct ni_board_struct ni_boards[] = {
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{
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.name = "at-mio-16e-1",
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.device_id = 44,
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.isapnp_id = 0x0000, /* XXX unknown */
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.n_adchan = 16,
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.ai_maxdata = 0x0fff,
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.ai_fifo_depth = 8192,
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.gainlkup = ai_gain_16,
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.ai_speed = 800,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_fifo_depth = 2048,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 1000,
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.caldac = { mb88341 },
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}, {
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.name = "at-mio-16e-2",
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.device_id = 25,
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.isapnp_id = 0x1900,
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.n_adchan = 16,
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.ai_maxdata = 0x0fff,
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.ai_fifo_depth = 2048,
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.gainlkup = ai_gain_16,
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.ai_speed = 2000,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_fifo_depth = 2048,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 1000,
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.caldac = { mb88341 },
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}, {
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.name = "at-mio-16e-10",
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.device_id = 36,
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.isapnp_id = 0x2400,
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.n_adchan = 16,
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.ai_maxdata = 0x0fff,
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.ai_fifo_depth = 512,
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.gainlkup = ai_gain_16,
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.ai_speed = 10000,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 10000,
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.caldac = { ad8804_debug },
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}, {
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.name = "at-mio-16de-10",
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.device_id = 37,
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.isapnp_id = 0x2500,
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.n_adchan = 16,
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.ai_maxdata = 0x0fff,
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.ai_fifo_depth = 512,
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.gainlkup = ai_gain_16,
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.ai_speed = 10000,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 10000,
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.caldac = { ad8804_debug },
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.has_8255 = 1,
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}, {
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.name = "at-mio-64e-3",
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.device_id = 38,
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.isapnp_id = 0x2600,
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.n_adchan = 64,
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.ai_maxdata = 0x0fff,
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.ai_fifo_depth = 2048,
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.gainlkup = ai_gain_16,
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.ai_speed = 2000,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_fifo_depth = 2048,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 1000,
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.caldac = { ad8804_debug },
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}, {
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.name = "at-mio-16xe-50",
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.device_id = 39,
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.isapnp_id = 0x2700,
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.n_adchan = 16,
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.ai_maxdata = 0xffff,
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.ai_fifo_depth = 512,
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.alwaysdither = 1,
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.gainlkup = ai_gain_8,
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.ai_speed = 50000,
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.n_aochan = 2,
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.ao_maxdata = 0x0fff,
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.ao_range_table = &range_bipolar10,
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.ao_speed = 50000,
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.caldac = { dac8800, dac8043 },
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}, {
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.name = "at-mio-16xe-10",
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.device_id = 50,
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.isapnp_id = 0x0000, /* XXX unknown */
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.n_adchan = 16,
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.ai_maxdata = 0xffff,
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.ai_fifo_depth = 512,
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.alwaysdither = 1,
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.gainlkup = ai_gain_14,
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.ai_speed = 10000,
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.n_aochan = 2,
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.ao_maxdata = 0xffff,
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.ao_fifo_depth = 2048,
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.ao_range_table = &range_ni_E_ao_ext,
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.ao_speed = 1000,
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.caldac = { dac8800, dac8043, ad8522 },
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}, {
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.name = "at-ai-16xe-10",
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.device_id = 51,
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.isapnp_id = 0x0000, /* XXX unknown */
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.n_adchan = 16,
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.ai_maxdata = 0xffff,
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.ai_fifo_depth = 512,
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.alwaysdither = 1, /* unknown */
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.gainlkup = ai_gain_14,
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.ai_speed = 10000,
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.caldac = { dac8800, dac8043, ad8522 },
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},
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};
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static const int ni_irqpin[] = {
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-1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7
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};
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#include "ni_mio_common.c"
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static const struct pnp_device_id device_ids[] = {
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{.id = "NIC1900", .driver_data = 0},
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{.id = "NIC2400", .driver_data = 0},
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{.id = "NIC2500", .driver_data = 0},
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{.id = "NIC2600", .driver_data = 0},
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{.id = "NIC2700", .driver_data = 0},
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{.id = ""}
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};
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MODULE_DEVICE_TABLE(pnp, device_ids);
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static int ni_isapnp_find_board(struct pnp_dev **dev)
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{
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struct pnp_dev *isapnp_dev = NULL;
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int i;
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for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
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isapnp_dev =
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pnp_find_dev(NULL,
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ISAPNP_VENDOR('N', 'I', 'C'),
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ISAPNP_FUNCTION(ni_boards[i].isapnp_id),
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NULL);
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if (!isapnp_dev || !isapnp_dev->card)
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continue;
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if (pnp_device_attach(isapnp_dev) < 0)
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continue;
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if (pnp_activate_dev(isapnp_dev) < 0) {
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pnp_device_detach(isapnp_dev);
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return -EAGAIN;
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}
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if (!pnp_port_valid(isapnp_dev, 0) ||
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!pnp_irq_valid(isapnp_dev, 0)) {
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pnp_device_detach(isapnp_dev);
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return -ENOMEM;
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}
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break;
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}
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if (i == ARRAY_SIZE(ni_boards))
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return -ENODEV;
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*dev = isapnp_dev;
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return 0;
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}
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static const struct ni_board_struct *ni_atmio_probe(struct comedi_device *dev)
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{
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int device_id = ni_read_eeprom(dev, 511);
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int i;
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for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
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const struct ni_board_struct *board = &ni_boards[i];
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if (board->device_id == device_id)
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return board;
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}
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if (device_id == 255)
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dev_err(dev->class_dev, "can't find board\n");
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else if (device_id == 0)
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dev_err(dev->class_dev,
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"EEPROM read error (?) or device not found\n");
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else
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dev_err(dev->class_dev,
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"unknown device ID %d -- contact author\n", device_id);
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return NULL;
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}
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static int ni_atmio_attach(struct comedi_device *dev,
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struct comedi_devconfig *it)
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{
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const struct ni_board_struct *board;
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struct pnp_dev *isapnp_dev;
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int ret;
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unsigned long iobase;
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unsigned int irq;
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ret = ni_alloc_private(dev);
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if (ret)
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return ret;
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iobase = it->options[0];
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irq = it->options[1];
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isapnp_dev = NULL;
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if (iobase == 0) {
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ret = ni_isapnp_find_board(&isapnp_dev);
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if (ret < 0)
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return ret;
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iobase = pnp_port_start(isapnp_dev, 0);
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irq = pnp_irq(isapnp_dev, 0);
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comedi_set_hw_dev(dev, &isapnp_dev->dev);
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}
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ret = comedi_request_region(dev, iobase, 0x20);
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if (ret)
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return ret;
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board = ni_atmio_probe(dev);
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if (!board)
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return -ENODEV;
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dev->board_ptr = board;
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dev->board_name = board->name;
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/* irq stuff */
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if (irq != 0) {
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if (irq > 15 || ni_irqpin[irq] == -1)
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return -EINVAL;
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ret = request_irq(irq, ni_E_interrupt, 0,
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dev->board_name, dev);
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if (ret < 0)
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return -EINVAL;
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dev->irq = irq;
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}
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/* generic E series stuff in ni_mio_common.c */
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ret = ni_E_init(dev, ni_irqpin[dev->irq], 0);
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if (ret < 0)
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return ret;
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return 0;
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}
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static void ni_atmio_detach(struct comedi_device *dev)
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{
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struct pnp_dev *isapnp_dev;
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mio_common_detach(dev);
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comedi_legacy_detach(dev);
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isapnp_dev = dev->hw_dev ? to_pnp_dev(dev->hw_dev) : NULL;
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if (isapnp_dev)
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pnp_device_detach(isapnp_dev);
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}
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static struct comedi_driver ni_atmio_driver = {
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.driver_name = "ni_atmio",
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.module = THIS_MODULE,
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.attach = ni_atmio_attach,
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.detach = ni_atmio_detach,
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};
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module_comedi_driver(ni_atmio_driver);
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MODULE_AUTHOR("Comedi https://www.comedi.org");
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MODULE_DESCRIPTION("Comedi low-level driver");
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MODULE_LICENSE("GPL");
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