dmm32at.c revision 828684f9a6e096f9150bad523c43b75d74b9badd
13c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 23c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi/drivers/dmm32at.c 33c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani Diamond Systems mm32at code for a Comedi driver 43c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 53c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani COMEDI - Linux Control and Measurement Device Interface 63c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani Copyright (C) 2000 David A. Schleef <ds@schleef.org> 73c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 83c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani This program is free software; you can redistribute it and/or modify 93c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani it under the terms of the GNU General Public License as published by 103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani the Free Software Foundation; either version 2 of the License, or 113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani (at your option) any later version. 123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani This program is distributed in the hope that it will be useful, 143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani but WITHOUT ANY WARRANTY; without even the implied warranty of 153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani GNU General Public License for more details. 173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani You should have received a copy of the GNU General Public License 193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani along with this program; if not, write to the Free Software 203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani*/ 233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniDriver: dmm32at 253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniDescription: Diamond Systems mm32at driver. 263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniDevices: 273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniAuthor: Perry J. Piplani <perry.j.piplani@nasa.gov> 283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniUpdated: Fri Jun 4 09:13:24 CDT 2004 293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniStatus: experimental 303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniThis driver is for the Diamond Systems MM-32-AT board 323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanihttp://www.diamondsystems.com/products/diamondmm32at It is being used 333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanion serveral projects inside NASA, without problems so far. For analog 343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplaniinput commands, TRIG_EXT is not yet supported at all.. 353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniConfiguration Options: 373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_config /dev/comedi0 dmm32at baseaddr,irq 383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani*/ 393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * The previous block comment is used to automatically generate 423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * documentation in Comedi and Comedilib. The fields: 433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Driver: the name of the driver 453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Description: a short phrase describing the driver. Don't list boards. 463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Devices: a full list of the boards that attempt to be supported by 473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the driver. Format is "(manufacturer) board name [comedi name]", 483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * where comedi_name is the name that is used to configure the board. 49139dfbdfacb02e3ef3df936d2fabd1ad5f14ea88Bill Pemberton * See the comment near board_name: in the struct comedi_driver structure 503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * below. If (manufacturer) or [comedi name] is missing, the previous 513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * value is used. 523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Author: you 533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Updated: date when the _documentation_ was last updated. Use 'date -R' 543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * to get a value for this. 553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Status: a one-word description of the status. Valid values are: 563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * works - driver works correctly on most boards supported, and 573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * passes comedi_test. 583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * unknown - unknown. Usually put there by ds. 593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * experimental - may not work in any particular release. Author 603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * probably wants assistance testing it. 613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * bitrotten - driver has not been update in a long time, probably 623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * doesn't work, and probably is missing support for significant 633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Comedi interface features. 643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * untested - author probably wrote it "blind", and is believed to 653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * work, but no confirmation. 663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * These headers should be followed by a blank line, and any comments 683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * you wish to say about the driver. The comment area is the place 693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * to put any known bugs, limitations, unsupported features, supported 703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * command triggers, whether or not commands are supported on particular 713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * subdevices, etc. 723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Somewhere in the comment should be information about configuration 743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * options that are used with comedi_config. 753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7725436dc9d84f1be60ff549c9ab712bba2835f284Greg Kroah-Hartman#include <linux/interrupt.h> 783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#include "../comedidev.h" 793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#include <linux/ioport.h> 803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Board register addresses */ 823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_MEMSIZE 0x10 843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CONV 0x00 863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AILSB 0x00 873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AUXDOUT 0x01 883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIMSB 0x01 893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AILOW 0x02 903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIHIGH 0x03 913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACLSB 0x04 933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACSTAT 0x04 943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACMSB 0x05 953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFOCNTRL 0x07 973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFOSTAT 0x07 983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CNTRL 0x08 1003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AISTAT 0x08 1013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_INTCLOCK 0x09 1033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CNTRDIO 0x0a 1053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AICONF 0x0b 1073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIRBACK 0x0b 1083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLK1 0x0d 1103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLK2 0x0e 1113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT 0x0f 1123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOA 0x0c 1143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOB 0x0d 1153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOC 0x0e 1163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOCONF 0x0f 1173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 118f7cbd7aad063b2a4b7aff6a743b2b00015ce3c3eBill Pemberton#define dmm_inb(cdev, reg) inb((cdev->iobase)+reg) 119f7cbd7aad063b2a4b7aff6a743b2b00015ce3c3eBill Pemberton#define dmm_outb(cdev, reg, valu) outb(valu, (cdev->iobase)+reg) 1203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Board register values. */ 1223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_DACSTAT 0x04 */ 1243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACBUSY 0x80 1253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_FIFOCNTRL 0x07 */ 1273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFORESET 0x02 1283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCANENABLE 0x04 1293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CNTRL 0x08 */ 1313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RESET 0x20 1323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_INTRESET 0x08 1333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKACC 0x00 1343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOACC 0x01 1353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_AISTAT 0x08 */ 1373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_STATUS 0x80 1383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_INTCLOCK 0x09 */ 1403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_ADINT 0x80 1413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKSEL 0x03 1423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CNTRDIO 0x0a */ 1443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FREQ12 0x80 1453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_AICONF 0x0b */ 1473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_U10 0x0c 1483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_U5 0x0d 1493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_B10 0x08 1503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_B5 0x00 1513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_20 0x00 1523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_15 0x10 1533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_10 0x20 1543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_5 0x30 1553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CLKCT 0x0f */ 1573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT1 0x56 /* mode3 counter 1 - write low byte only */ 1583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT2 0xb6 /* mode3 counter 2 - write high and low byte */ 1593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_DIOCONF 0x0f */ 1613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIENABLE 0x80 1623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRA 0x10 1633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRB 0x02 1643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRCL 0x01 1653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRCH 0x08 1663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* board AI ranges in comedi structure */ 1689ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pembertonstatic const struct comedi_lrange dmm32at_airanges = { 1693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4, 1703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 1710a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(10), 1720a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(5), 1730a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(10), 1740a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(5), 1750a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral } 1763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* register values for above ranges */ 1793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic const unsigned char dmm32at_rangebits[] = { 1803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_U10, 1813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_U5, 1823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_B10, 1833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_B5, 1843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* only one of these ranges is valid, as set by a jumper on the 1873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * board. The application should only use the range set by the jumper 1883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 1899ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pembertonstatic const struct comedi_lrange dmm32at_aoranges = { 1903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4, 1913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 1920a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(10), 1930a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(5), 1940a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(10), 1950a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(5), 1960a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral } 1973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 2003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Board descriptions for two imaginary boards. Describing the 2013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * boards in this way is optional, and completely driver-dependent. 2023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Some drivers use arrays such as this, other do not. 2033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 20438baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pembertonstruct dmm32at_board { 2053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani const char *name; 2063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_chans; 2073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_bits; 2089ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pemberton const struct comedi_lrange *ai_ranges; 2093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ao_chans; 2103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ao_bits; 2119ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pemberton const struct comedi_lrange *ao_ranges; 2123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int have_dio; 2133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int dio_chans; 21438baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pemberton}; 21538baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pembertonstatic const struct dmm32at_board dmm32at_boards[] = { 2163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 2170a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .name = "dmm32at", 2180a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_chans = 32, 2190a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_bits = 16, 2200a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_ranges = &dmm32at_airanges, 2210a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_chans = 4, 2220a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_bits = 12, 2230a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_ranges = &dmm32at_aoranges, 2240a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .have_dio = 1, 2250a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .dio_chans = 24, 2260a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral }, 2273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 2283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 2303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Useful for shorthand access to the particular board structure 2313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 23238baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pemberton#define thisboard ((const struct dmm32at_board *)dev->board_ptr) 2333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* this structure is for data unique to this hardware driver. If 2353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * several hardware drivers keep similar information in this structure, 23671b5f4f11971dea972832ad63a994c7e5b45db6bBill Pemberton * feel free to suggest moving the variable to the struct comedi_device struct. 2373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 23839d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pembertonstruct dmm32at_private { 2393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int data; 2413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_inuse; 2423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int ai_scans_left; 2433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Used for AO readback */ 245790c55415aa31f4c732729f94d2c3a54f7d3bfc2Bill Pemberton unsigned int ao_readback[4]; 2463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char dio_config; 2473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 24839d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton}; 2493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 2513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * most drivers define the following macro to make it easy to 2523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * access the private structure. 2533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 25439d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton#define devpriv ((struct dmm32at_private *)dev->private) 2553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 257139dfbdfacb02e3ef3df936d2fabd1ad5f14ea88Bill Pemberton * The struct comedi_driver structure tells the Comedi core module 2583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * which functions to call to configure/deconfigure (attach/detach) 2593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the board, and also about the kernel module that contains 2603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the device code. 2613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 2620a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_attach(struct comedi_device *dev, 2630a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_devconfig *it); 264da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_detach(struct comedi_device *dev); 265139dfbdfacb02e3ef3df936d2fabd1ad5f14ea88Bill Pembertonstatic struct comedi_driver driver_dmm32at = { 26668c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .driver_name = "dmm32at", 26768c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .module = THIS_MODULE, 26868c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .attach = dmm32at_attach, 26968c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .detach = dmm32at_detach, 2703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* It is not necessary to implement the following members if you are 2713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * writing a driver for a ISA PnP or PCI card */ 2723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Most drivers will support multiple types of boards by 2733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * having an array of board structures. These were defined 2743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in dmm32at_boards[] above. Note that the element 'name' 2753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * was first in the structure -- Comedi uses this fact to 2763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * extract the name of the board without knowing any details 2773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * about the structure except for its length. 2783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * When a device is attached (by comedi_config), the name 2793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * of the device is given to Comedi, and Comedi tries to 2803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * match it by going through the list of board names. If 2813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * there is a match, the address of the pointer is put 2823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * into dev->board_ptr and driver->attach() is called. 2833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 2843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Note that these are not necessary if you can determine 2853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the type of board in software. ISA PnP, PCI, and PCMCIA 2863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * devices are such boards. 2873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 28868c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .board_name = &dmm32at_boards[0].name, 28968c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .offset = sizeof(struct dmm32at_board), 2908629efa4cbf6f89a54a85af4b8bc31762af01800Bill Pemberton .num_names = ARRAY_SIZE(dmm32at_boards), 2913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 2923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* prototypes for driver functions below */ 2940a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_rinsn(struct comedi_device *dev, 2950a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2960a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 2970a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_winsn(struct comedi_device *dev, 2980a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2990a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 3000a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_rinsn(struct comedi_device *dev, 3010a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 3020a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 3030a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_bits(struct comedi_device *dev, 3040a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 3050a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 3060a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_config(struct comedi_device *dev, 3070a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 3080a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, 3090a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral unsigned int *data); 3100a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmdtest(struct comedi_device *dev, 3110a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 3120a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_cmd *cmd); 3130a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmd(struct comedi_device *dev, 3140a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s); 3150a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cancel(struct comedi_device *dev, 3160a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s); 3173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic int dmm32at_ns_to_timer(unsigned int *ns, int round); 31870265d24e3404fe798b6edd55a02016b1edb49d7Jiri Slabystatic irqreturn_t dmm32at_isr(int irq, void *d); 319814900c904140cfe7f3e48cabec06b3eec57e0eaBill Pembertonvoid dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec); 3203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 3223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Attach is called by the Comedi core to configure the driver 3233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * for a particular board. If you specified a board_name array 3243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in the driver structure, dev->board_ptr contains that 3253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * address. 3263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 3270a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_attach(struct comedi_device *dev, 3280a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_devconfig *it) 3293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 3303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ret; 33134c43922e62708d45e9660eee4b4f1fb7b4bf2c7Bill Pemberton struct comedi_subdevice *s; 3323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char aihi, ailo, fifostat, aistat, intstat, airback; 3333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned long iobase; 3343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int irq; 3353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani iobase = it->options[0]; 3373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani irq = it->options[1]; 3383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("comedi%d: dmm32at: attaching\n", dev->minor); 3403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("dmm32at: probing at address 0x%04lx, irq %u\n", iobase, irq); 3413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* register address space */ 3433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!request_region(iobase, DMM32AT_MEMSIZE, thisboard->name)) { 3443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("I/O port conflict\n"); 3453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EIO; 3463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->iobase = iobase; 3483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* the following just makes sure the board is there and gets 3503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani it to a known state */ 3513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the board */ 3533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_RESET); 3543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* allow a millisecond to reset */ 3563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani udelay(1000); 3573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero scan and fifo control */ 3593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, 0x0); 3603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero interrupt and clock control */ 3623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, 0x0); 3633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write a test channel range, the high 3 bits should drop */ 3653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, 0x80); 3663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, 0xff); 3673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range at 10v unipolar */ 3693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, DMM32AT_RANGE_U10); 3703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should take 10 us to settle, here's a hundred */ 3723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani udelay(100); 3733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read back the values */ 3753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani ailo = dmm_inb(dev, DMM32AT_AILOW); 3763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani aihi = dmm_inb(dev, DMM32AT_AIHIGH); 3773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani fifostat = dmm_inb(dev, DMM32AT_FIFOSTAT); 3783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani aistat = dmm_inb(dev, DMM32AT_AISTAT); 3793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani intstat = dmm_inb(dev, DMM32AT_INTCLOCK); 3803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani airback = dmm_inb(dev, DMM32AT_AIRBACK); 3813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("dmm32at: lo=0x%02x hi=0x%02x fifostat=0x%02x\n", 3830a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral ailo, aihi, fifostat); 3843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("dmm32at: aistat=0x%02x intstat=0x%02x airback=0x%02x\n", 3850a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral aistat, intstat, airback); 3863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((ailo != 0x00) || (aihi != 0x1f) || (fifostat != 0x80) || 3880a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral (aistat != 0x60 || (intstat != 0x00) || airback != 0x0c)) { 3893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("dmmat32: board detection failed\n"); 3903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EIO; 3913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* board is there, register interrupt */ 3943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (irq) { 3955f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman ret = request_irq(irq, dmm32at_isr, 0, thisboard->name, dev); 3963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (ret < 0) { 3973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("irq conflict\n"); 3983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return ret; 3993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 4003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->irq = irq; 4013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 4023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * If you can probe the device to determine what device in a series 4053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * it is, this is the place to do it. Otherwise, dev->board_ptr 4063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * should already be initialized. 4073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 4082696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* dev->board_ptr = dmm32at_probe(dev); */ 4093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Initialize dev->board_name. Note that we can use the "thisboard" 4123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * macro now, since we just initialized it in the last line. 4133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 4143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->board_name = thisboard->name; 4153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Allocate the private structure area. alloc_private() is a 4183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convenient macro defined in comedidev.h. 4193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 42039d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton if (alloc_private(dev, sizeof(struct dmm32at_private)) < 0) 4213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ENOMEM; 4223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Allocate the subdevice structures. alloc_subdevice() is a 4253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convenient macro defined in comedidev.h. 4263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 4273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (alloc_subdevices(dev, 3) < 0) 4283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ENOMEM; 4293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 0; 4313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->read_subdev = s; 4323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* analog input subdevice */ 4333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_AI; 4343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* we support single-ended (ground) and differential */ 4353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; 4363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->ai_chans; 4373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = (1 << thisboard->ai_bits) - 1; 4383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = thisboard->ai_ranges; 4393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->len_chanlist = 32; /* This is the maximum chanlist length that 4403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani the board can handle */ 4413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_read = dmm32at_ai_rinsn; 4423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->do_cmd = dmm32at_ai_cmd; 4433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->do_cmdtest = dmm32at_ai_cmdtest; 4443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->cancel = dmm32at_ai_cancel; 4453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 1; 4473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* analog output subdevice */ 4483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_AO; 4493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_WRITABLE; 4503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->ao_chans; 4513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = (1 << thisboard->ao_bits) - 1; 4523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = thisboard->ao_ranges; 4533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_write = dmm32at_ao_winsn; 4543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_read = dmm32at_ao_rinsn; 4553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 2; 4573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* digital i/o subdevice */ 4583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (thisboard->have_dio) { 4593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 4613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 4623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the DIO's to the defualt input setting */ 4633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config = DMM32AT_DIRA | DMM32AT_DIRB | 4640a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral DMM32AT_DIRCL | DMM32AT_DIRCH | DMM32AT_DIENABLE; 4653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config); 4663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set up the subdevice */ 4683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_DIO; 4693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 4703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->dio_chans; 4713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = 1; 4723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state = 0; 4733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = &range_digital; 4743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_bits = dmm32at_dio_insn_bits; 4753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_config = dmm32at_dio_insn_config; 4763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 4773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_UNUSED; 4783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 4793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* success */ 4813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("comedi%d: dmm32at: attached\n", dev->minor); 4823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 4843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 4863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * _detach is called to deconfigure a device. It should deallocate 4893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * resources. 4903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * This function is also called when _attach() fails, so it should be 4913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * careful not to release resources that were not necessarily 4923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * allocated by _attach(). dev->private and dev->subdevices are 4933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * deallocated automatically by the core. 4943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 495da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_detach(struct comedi_device *dev) 4963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 4973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("comedi%d: dmm32at: remove\n", dev->minor); 4983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (dev->irq) 4995f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman free_irq(dev->irq, dev); 5003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (dev->iobase) 5013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani release_region(dev->iobase, DMM32AT_MEMSIZE); 5023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 5043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 5053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 5073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * "instructions" read/write data in "one-shot" or "software-triggered" 5083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * mode. 5093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 5103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5110a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_rinsn(struct comedi_device *dev, 5120a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 5130a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 5143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 5153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int n, i; 5163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int d; 5173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char status; 5183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short msb, lsb; 5193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chan; 5203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int range; 5213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the channel and range number */ 5233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chan = CR_CHAN(insn->chanspec) & (s->n_chan - 1); 5253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani range = CR_RANGE(insn->chanspec); 5263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5272696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("channel=0x%02x, range=%d\n",chan,range); */ 5283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero scan and fifo control and reset fifo */ 5303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_FIFORESET); 5313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the ai channel range regs */ 5333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, chan); 5343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, chan); 5353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range bits */ 5363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, dmm32at_rangebits[range]); 5373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 5393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 5403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AIRBACK); 5413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 5423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 5433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 5453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("timeout\n"); 5463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 5473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* convert n samples */ 5503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (n = 0; n < insn->n; n++) { 5513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* trigger conversion */ 5523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CONV, 0xff); 5533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for conversion to end */ 5543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 5553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AISTAT); 5563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 5573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 5583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 5603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("timeout\n"); 5613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 5623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read data */ 5653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lsb = dmm_inb(dev, DMM32AT_AILSB); 5663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani msb = dmm_inb(dev, DMM32AT_AIMSB); 5673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* invert sign bit to make range unsigned, this is an 5693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani idiosyncracy of the diamond board, it return 5703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani conversions as a signed value, i.e. -32768 to 5713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 32767, flipping the bit and interpreting it as 5723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani signed gives you a range of 0 to 65535 which is 5733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani used by comedi */ 5743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani d = ((msb ^ 0x0080) << 8) + lsb; 5753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[n] = d; 5773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* return the number of samples read/written */ 5803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return n; 5813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 5823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5830a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmdtest(struct comedi_device *dev, 5840a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 5850a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_cmd *cmd) 5863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 5873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int err = 0; 5883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int tmp; 5893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int start_chan, gain, i; 5903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5912696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("dmmat32 in command test\n"); */ 5923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* cmdtest tests a particular command to see if it is valid. 5943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Using the cmdtest ioctl, a user can create a valid cmd 5953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * and then have it executes by the cmd ioctl. 5963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 5973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * cmdtest returns 1,2,3,4 or 0, depending on which tests 5983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the command passes. */ 5993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 1: make sure trigger sources are trivially valid */ 6013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->start_src; 6033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->start_src &= TRIG_NOW; 6043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->start_src || tmp != cmd->start_src) 6053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_begin_src; 6083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_src &= TRIG_TIMER /*| TRIG_EXT */ ; 6093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) 6103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->convert_src; 6133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_src &= TRIG_TIMER /*| TRIG_EXT */ ; 6143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->convert_src || tmp != cmd->convert_src) 6153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_end_src; 6183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_end_src &= TRIG_COUNT; 6193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->scan_end_src || tmp != cmd->scan_end_src) 6203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->stop_src; 6233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_src &= TRIG_COUNT | TRIG_NONE; 6243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->stop_src || tmp != cmd->stop_src) 6253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 6283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 6293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 2: make sure trigger sources are unique and mutually compatible */ 6313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 632828684f9a6e096f9150bad523c43b75d74b9baddDirk Hohndel /* note that mutual compatibility is not an issue here */ 6333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src != TRIG_TIMER && 6340a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->scan_begin_src != TRIG_EXT) 6353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) 6373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) 6393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 6423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 2; 6433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 3: make sure arguments are trivially compatible */ 6453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->start_arg != 0) { 6473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->start_arg = 0; 6483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define MAX_SCAN_SPEED 1000000 /* in nanoseconds */ 6513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define MIN_SCAN_SPEED 1000000000 /* in nanoseconds */ 6523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER) { 6543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg < MAX_SCAN_SPEED) { 6553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = MAX_SCAN_SPEED; 6563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg > MIN_SCAN_SPEED) { 6593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = MIN_SCAN_SPEED; 6603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 6633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* external trigger */ 6643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should be level/edge, hi/lo specification here */ 6653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should specify multiple external triggers */ 6663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg > 9) { 6673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = 9; 6683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src == TRIG_TIMER) { 6723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_arg >= 17500) 6733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 20000; 6743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (cmd->convert_arg >= 12500) 6753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 15000; 6763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (cmd->convert_arg >= 7500) 6773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 10000; 6783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else 6793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 5000; 6803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 6823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* external trigger */ 6833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* see above */ 6843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_arg > 9) { 6853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 9; 6863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_end_arg != cmd->chanlist_len) { 6913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_end_arg = cmd->chanlist_len; 6923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src == TRIG_COUNT) { 6953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg > 0xfffffff0) { 6963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 0xfffffff0; 6973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg == 0) { 7003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 1; 7013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 7043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* TRIG_NONE */ 7053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg != 0) { 7063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 0; 7073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 7123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 3; 7133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 4: fix up any arguments */ 7153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER) { 7173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_begin_arg; 7183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_ns_to_timer(&cmd->scan_begin_arg, 7190a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->flags & TRIG_ROUND_MASK); 7203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (tmp != cmd->scan_begin_arg) 7213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src == TRIG_TIMER) { 7243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->convert_arg; 7253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_ns_to_timer(&cmd->convert_arg, 7260a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->flags & TRIG_ROUND_MASK); 7273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (tmp != cmd->convert_arg) 7283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER && 7300a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->scan_begin_arg < 7310a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->convert_arg * cmd->scan_end_arg) { 7323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = 7330a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->convert_arg * cmd->scan_end_arg; 7343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 7393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 4; 7403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 5 check the channel list, the channel list for this 7423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani board must be consecutive and gains must be the same */ 7433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->chanlist) { 7453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani gain = CR_RANGE(cmd->chanlist[0]); 7463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani start_chan = CR_CHAN(cmd->chanlist[0]); 7473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 1; i < cmd->chanlist_len; i++) { 7483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (CR_CHAN(cmd->chanlist[i]) != 7490a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral (start_chan + i) % s->n_chan) { 7503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, 7510a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral "entries in chanlist must be consecutive channels, counting upwards\n"); 7523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (CR_RANGE(cmd->chanlist[i]) != gain) { 7553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, 7560a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral "entries in chanlist must all have the same gain\n"); 7573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 7633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 5; 7643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 7663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 7673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 768da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 7693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 770ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 7713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i, range; 7723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chanlo, chanhi, status; 7733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->chanlist) 7753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 7763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the channel list and range */ 7783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanlo = CR_CHAN(cmd->chanlist[0]) & (s->n_chan - 1); 7793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanhi = chanlo + cmd->chanlist_len - 1; 7803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (chanhi >= s->n_chan) 7813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 7823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani range = CR_RANGE(cmd->chanlist[0]); 7833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset fifo */ 7853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_FIFORESET); 7863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set scan enable */ 7883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_SCANENABLE); 7893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the ai channel range regs */ 7913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, chanlo); 7923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, chanhi); 7933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range bits */ 7953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, dmm32at_rangebits[range]); 7963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the interrupt just in case */ 7983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_INTRESET); 7993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src == TRIG_COUNT) 8013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left = cmd->stop_arg; 8023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else { /* TRIG_NONE */ 8033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left = 0xffffffff; /* indicates TRIG_NONE to isr */ 8043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 8073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 8083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AIRBACK); 8093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 8103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 8113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 8133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("timeout\n"); 8143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 8153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left > 1) { 8183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* start the clock and enable the interrupts */ 8193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_setaitimer(dev, cmd->scan_begin_arg); 8203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 8213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* start the interrups and initiate a single scan */ 8223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, DMM32AT_ADINT); 8233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CONV, 0xff); 8243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* printk("dmmat32 in command\n"); */ 8273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* for(i=0;i<cmd->chanlist_len;i++) */ 8293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* comedi_buf_put(s->async,i*100); */ 8303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* s->async->events |= COMEDI_CB_EOA; */ 8323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* comedi_event(dev, s); */ 8333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 8353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8380a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cancel(struct comedi_device *dev, 8390a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s) 8403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left = 1; 8423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 8433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 84570265d24e3404fe798b6edd55a02016b1edb49d7Jiri Slabystatic irqreturn_t dmm32at_isr(int irq, void *d) 8463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char intstat; 8483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int samp; 8493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short msb, lsb; 8503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 85171b5f4f11971dea972832ad63a994c7e5b45db6bBill Pemberton struct comedi_device *dev = d; 8523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!dev->attached) { 8543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, "spurious interrupt"); 8553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return IRQ_HANDLED; 8563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani intstat = dmm_inb(dev, DMM32AT_INTCLOCK); 8593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (intstat & DMM32AT_ADINT) { 86134c43922e62708d45e9660eee4b4f1fb7b4bf2c7Bill Pemberton struct comedi_subdevice *s = dev->read_subdev; 862ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 8633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < cmd->chanlist_len; i++) { 8653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read data */ 8663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lsb = dmm_inb(dev, DMM32AT_AILSB); 8673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani msb = dmm_inb(dev, DMM32AT_AIMSB); 8683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* invert sign bit to make range unsigned */ 8703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani samp = ((msb ^ 0x0080) << 8) + lsb; 8713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_buf_put(s->async, samp); 8723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left != 0xffffffff) { /* TRIG_COUNT */ 8753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left--; 8763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left == 0) { 8773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* disable further interrupts and clocks */ 8783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, 0x0); 8793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the buffer to be flushed with an EOF */ 8803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->async->events |= COMEDI_CB_EOA; 8813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* flush the buffer */ 8853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_event(dev, s); 8863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the interrupt */ 8893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_INTRESET); 8903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return IRQ_HANDLED; 8913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* This function doesn't require a particular form, this is just 8943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * what happens to be used in some of the drivers. It should 8953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convert ns nanoseconds to a counter value suitable for programming 8963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the device. Also, it should adjust ns so that it cooresponds to 8973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the actual time that the device will use. */ 8983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic int dmm32at_ns_to_timer(unsigned int *ns, int round) 8993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* trivial timer */ 9013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if your timing is done through two cascaded timers, the 9023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * i8253_cascade_ns_to_timer() function in 8253.h can be 9033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * very helpful. There are also i8254_load() and i8254_mm_load() 9043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * which can be used to load values into the ubiquitous 8254 counters 9053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 9063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return *ns; 9083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9100a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_winsn(struct comedi_device *dev, 9110a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9120a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 9153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 9163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char hi, lo, status; 9173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Writing a list of values to an AO channel is probably not 9193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * very useful, but that's how the interface is defined. */ 9203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < insn->n; i++) { 9213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ao_readback[chan] = data[i]; 9233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the low byte */ 9253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo = data[i] & 0x00ff; 9263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* high byte also contains channel number */ 9273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani hi = (data[i] >> 8) + chan * (1 << 6); 9282696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("writing 0x%02x 0x%02x\n",hi,lo); */ 9293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the low and high values to the board */ 9303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DACLSB, lo); 9313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DACMSB, hi); 9323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 9343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 9353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_DACSTAT); 9363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_DACBUSY) == 0) 9373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 9383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 9403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani printk("timeout\n"); 9413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 9423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* dummy read to update trigger the output */ 9443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_DACMSB); 9453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* return the number of samples read/written */ 9493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return i; 9503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* AO subdevices should have a read insn as well as a write insn. 9533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Usually this means copying a value stored in devpriv. */ 9540a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_rinsn(struct comedi_device *dev, 9550a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9560a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 9593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 9603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < insn->n; i++) 9623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[i] = devpriv->ao_readback[chan]; 9633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return i; 9653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DIO devices are slightly special. Although it is possible to 9683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * implement the insn_read/insn_write interface, it is much more 9693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * useful to applications if you implement the insn_bits interface. 9703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * This allows packed reading/writing of the DIO channels. The 9713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * comedi core can convert between insn_bits and insn_read/write */ 9720a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_bits(struct comedi_device *dev, 9730a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9740a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char diobits; 9773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (insn->n != 2) 9793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 9803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* The insn data is a mask in data[0] and the new data 9823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in data[1], each channel cooresponding to a bit. */ 9833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (data[0]) { 9843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state &= ~data[0]; 9853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= data[0] & data[1]; 9863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Write out the new digital output lines */ 9872696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* outw(s->state,dev->iobase + DMM32AT_DIO); */ 9883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 9913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 9923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if either part of dio is set for output */ 9943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (((devpriv->dio_config & DMM32AT_DIRCL) == 0) || 9950a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral ((devpriv->dio_config & DMM32AT_DIRCH) == 0)) { 9963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x00ff0000) >> 16; 9973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOC, diobits); 9983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((devpriv->dio_config & DMM32AT_DIRB) == 0) { 10003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x0000ff00) >> 8; 10013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOB, diobits); 10023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 10033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((devpriv->dio_config & DMM32AT_DIRA) == 0) { 10043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x000000ff); 10053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOA, diobits); 10063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 10073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* now read the state back in */ 10093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state = dmm_inb(dev, DMM32AT_DIOC); 10103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state <<= 8; 10113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= dmm_inb(dev, DMM32AT_DIOB); 10123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state <<= 8; 10133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= dmm_inb(dev, DMM32AT_DIOA); 10143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[1] = s->state; 10153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* on return, data[1] contains the value of the digital 10173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * input and output lines. */ 10182696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* data[1]=inw(dev->iobase + DMM32AT_DIO); */ 10193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* or we could just return the software copy of the output values if 10203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * it was a purely digital output subdevice */ 10212696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* data[1]=s->state; */ 10223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 2; 10243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 10253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10260a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_config(struct comedi_device *dev, 10270a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 10280a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 10293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 10303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chanbit; 10313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 10323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (insn->n != 1) 10343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 10353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (chan < 8) 10373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRA; 10383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (chan < 16) 10393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRB; 10403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (chan < 20) 10413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRCL; 10423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else 10433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRCH; 10443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* The input or output configuration of each digital line is 10463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * configured by a special insn_config instruction. chanspec 10473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * contains the channel to be changed, and data[0] contains the 10483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * value COMEDI_INPUT or COMEDI_OUTPUT. */ 10493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if output clear the bit, otherwise set it */ 10513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (data[0] == COMEDI_OUTPUT) { 10523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config &= ~chanbit; 10533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 10543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config |= chanbit; 10553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 10563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 10573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 10583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the DIO's to the new configuration setting */ 10593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config); 10603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 10623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 10633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1064da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonvoid dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec) 10653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 10663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char lo1, lo2, hi2; 10673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short both2; 10683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* based on 10mhz clock */ 10703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo1 = 200; 10713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani both2 = nansec / 20000; 10723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani hi2 = (both2 & 0xff00) >> 8; 10733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo2 = both2 & 0x00ff; 10743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the counter frequency to 10mhz */ 10763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRDIO, 0); 10773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the clock regs */ 10793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_CLKACC); 10803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the counter 1 control word and low byte to counter */ 10823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLKCT, DMM32AT_CLKCT1); 10833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK1, lo1); 10843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the counter 2 control word and low byte then to counter */ 10863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLKCT, DMM32AT_CLKCT2); 10873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK2, lo2); 10883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK2, hi2); 10893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* enable the ai conversion interrupt and the clock to start scans */ 10913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, DMM32AT_ADINT | DMM32AT_CLKSEL); 10923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 10943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 10963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * A convenient macro that defines init_module() and cleanup_module(), 10973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * as necessary. 10983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 10993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. PiplaniCOMEDI_INITCLEANUP(driver_dmm32at); 1100