1/* 2 * comedi/drivers/ni_labpc.c 3 * Driver for National Instruments Lab-PC series boards and compatibles 4 * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17/* 18 * Driver: ni_labpc 19 * Description: National Instruments Lab-PC (& compatibles) 20 * Devices: [National Instruments] Lab-PC-1200 (lab-pc-1200), 21 * Lab-PC-1200AI (lab-pc-1200ai), Lab-PC+ (lab-pc+) 22 * Author: Frank Mori Hess <fmhess@users.sourceforge.net> 23 * Status: works 24 * 25 * Configuration options - ISA boards: 26 * [0] - I/O port base address 27 * [1] - IRQ (optional, required for timed or externally triggered 28 * conversions) 29 * [2] - DMA channel (optional) 30 * 31 * Tested with lab-pc-1200. For the older Lab-PC+, not all input 32 * ranges and analog references will work, the available ranges/arefs 33 * will depend on how you have configured the jumpers on your board 34 * (see your owner's manual). 35 * 36 * Kernel-level ISA plug-and-play support for the lab-pc-1200 boards 37 * has not yet been added to the driver, mainly due to the fact that 38 * I don't know the device id numbers. If you have one of these boards, 39 * please file a bug report at http://comedi.org/ so I can get the 40 * necessary information from you. 41 * 42 * The 1200 series boards have onboard calibration dacs for correcting 43 * analog input/output offsets and gains. The proper settings for these 44 * caldacs are stored on the board's eeprom. To read the caldac values 45 * from the eeprom and store them into a file that can be then be used 46 * by comedilib, use the comedi_calibrate program. 47 * 48 * The Lab-pc+ has quirky chanlist requirements when scanning multiple 49 * channels. Multiple channel scan sequence must start at highest channel, 50 * then decrement down to channel 0. The rest of the cards can scan down 51 * like lab-pc+ or scan up from channel zero. Chanlists consisting of all 52 * one channel are also legal, and allow you to pace conversions in bursts. 53 * 54 * NI manuals: 55 * 341309a (labpc-1200 register manual) 56 * 320502b (lab-pc+) 57 */ 58 59#include <linux/module.h> 60 61#include "../comedidev.h" 62 63#include "ni_labpc.h" 64#include "ni_labpc_isadma.h" 65 66static const struct labpc_boardinfo labpc_boards[] = { 67 { 68 .name = "lab-pc-1200", 69 .ai_speed = 10000, 70 .ai_scan_up = 1, 71 .has_ao = 1, 72 .is_labpc1200 = 1, 73 }, { 74 .name = "lab-pc-1200ai", 75 .ai_speed = 10000, 76 .ai_scan_up = 1, 77 .is_labpc1200 = 1, 78 }, { 79 .name = "lab-pc+", 80 .ai_speed = 12000, 81 .has_ao = 1, 82 }, 83}; 84 85static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) 86{ 87 unsigned int irq = it->options[1]; 88 unsigned int dma_chan = it->options[2]; 89 int ret; 90 91 ret = comedi_request_region(dev, it->options[0], 0x20); 92 if (ret) 93 return ret; 94 95 ret = labpc_common_attach(dev, irq, 0); 96 if (ret) 97 return ret; 98 99 if (dev->irq) 100 labpc_init_dma_chan(dev, dma_chan); 101 102 return 0; 103} 104 105static void labpc_detach(struct comedi_device *dev) 106{ 107 labpc_free_dma_chan(dev); 108 labpc_common_detach(dev); 109 comedi_legacy_detach(dev); 110} 111 112static struct comedi_driver labpc_driver = { 113 .driver_name = "ni_labpc", 114 .module = THIS_MODULE, 115 .attach = labpc_attach, 116 .detach = labpc_detach, 117 .num_names = ARRAY_SIZE(labpc_boards), 118 .board_name = &labpc_boards[0].name, 119 .offset = sizeof(struct labpc_boardinfo), 120}; 121module_comedi_driver(labpc_driver); 122 123MODULE_AUTHOR("Comedi http://www.comedi.org"); 124MODULE_DESCRIPTION("Comedi driver for NI Lab-PC ISA boards"); 125MODULE_LICENSE("GPL"); 126