// SPDX-License-Identifier: GPL-2.0+
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/*
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* comedi/drivers/ni_labpc.c
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* Driver for National Instruments Lab-PC series boards and compatibles
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* Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net>
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*/
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/*
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* Driver: ni_labpc
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* Description: National Instruments Lab-PC (& compatibles)
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* Devices: [National Instruments] Lab-PC-1200 (lab-pc-1200),
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* Lab-PC-1200AI (lab-pc-1200ai), Lab-PC+ (lab-pc+)
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* Author: Frank Mori Hess <fmhess@users.sourceforge.net>
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* Status: works
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*
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* Configuration options - ISA boards:
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* [0] - I/O port base address
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* [1] - IRQ (optional, required for timed or externally triggered
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* conversions)
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* [2] - DMA channel (optional)
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*
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* Tested with lab-pc-1200. For the older Lab-PC+, not all input
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* ranges and analog references will work, the available ranges/arefs
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* will depend on how you have configured the jumpers on your board
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* (see your owner's manual).
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*
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* Kernel-level ISA plug-and-play support for the lab-pc-1200 boards
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* has not yet been added to the driver, mainly due to the fact that
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* I don't know the device id numbers. If you have one of these boards,
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* please file a bug report at https://comedi.org/ so I can get the
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* necessary information from you.
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*
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* The 1200 series boards have onboard calibration dacs for correcting
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* analog input/output offsets and gains. The proper settings for these
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* caldacs are stored on the board's eeprom. To read the caldac values
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* from the eeprom and store them into a file that can be then be used
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* by comedilib, use the comedi_calibrate program.
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*
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* The Lab-pc+ has quirky chanlist requirements when scanning multiple
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* channels. Multiple channel scan sequence must start at highest channel,
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* then decrement down to channel 0. The rest of the cards can scan down
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* like lab-pc+ or scan up from channel zero. Chanlists consisting of all
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* one channel are also legal, and allow you to pace conversions in bursts.
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*
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* NI manuals:
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* 341309a (labpc-1200 register manual)
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* 320502b (lab-pc+)
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*/
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#include <linux/module.h>
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#include "../comedidev.h"
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#include "ni_labpc.h"
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#include "ni_labpc_isadma.h"
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static const struct labpc_boardinfo labpc_boards[] = {
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{
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.name = "lab-pc-1200",
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.ai_speed = 10000,
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.ai_scan_up = 1,
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.has_ao = 1,
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.is_labpc1200 = 1,
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}, {
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.name = "lab-pc-1200ai",
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.ai_speed = 10000,
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.ai_scan_up = 1,
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.is_labpc1200 = 1,
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}, {
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.name = "lab-pc+",
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.ai_speed = 12000,
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.has_ao = 1,
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},
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};
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static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
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{
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unsigned int irq = it->options[1];
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unsigned int dma_chan = it->options[2];
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int ret;
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ret = comedi_request_region(dev, it->options[0], 0x20);
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if (ret)
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return ret;
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ret = labpc_common_attach(dev, irq, 0);
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if (ret)
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return ret;
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if (dev->irq)
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labpc_init_dma_chan(dev, dma_chan);
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return 0;
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}
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static void labpc_detach(struct comedi_device *dev)
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{
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labpc_free_dma_chan(dev);
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labpc_common_detach(dev);
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comedi_legacy_detach(dev);
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}
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static struct comedi_driver labpc_driver = {
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.driver_name = "ni_labpc",
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.module = THIS_MODULE,
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.attach = labpc_attach,
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.detach = labpc_detach,
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.num_names = ARRAY_SIZE(labpc_boards),
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.board_name = &labpc_boards[0].name,
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.offset = sizeof(struct labpc_boardinfo),
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};
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module_comedi_driver(labpc_driver);
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MODULE_AUTHOR("Comedi https://www.comedi.org");
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MODULE_DESCRIPTION("Comedi driver for NI Lab-PC ISA boards");
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MODULE_LICENSE("GPL");
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