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