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 4025436dc9d84f1be60ff549c9ab712bba2835f284Greg Kroah-Hartman#include <linux/interrupt.h> 413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#include "../comedidev.h" 423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#include <linux/ioport.h> 433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Board register addresses */ 453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_MEMSIZE 0x10 473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CONV 0x00 493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AILSB 0x00 503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AUXDOUT 0x01 513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIMSB 0x01 523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AILOW 0x02 533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIHIGH 0x03 543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACLSB 0x04 563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACSTAT 0x04 573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACMSB 0x05 583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFOCNTRL 0x07 603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFOSTAT 0x07 613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CNTRL 0x08 633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AISTAT 0x08 643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_INTCLOCK 0x09 663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CNTRDIO 0x0a 683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AICONF 0x0b 703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_AIRBACK 0x0b 713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLK1 0x0d 733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLK2 0x0e 743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT 0x0f 753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOA 0x0c 773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOB 0x0d 783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOC 0x0e 793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOCONF 0x0f 803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 81f7cbd7aad063b2a4b7aff6a743b2b00015ce3c3eBill Pemberton#define dmm_inb(cdev, reg) inb((cdev->iobase)+reg) 82f7cbd7aad063b2a4b7aff6a743b2b00015ce3c3eBill Pemberton#define dmm_outb(cdev, reg, valu) outb(valu, (cdev->iobase)+reg) 833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Board register values. */ 853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_DACSTAT 0x04 */ 873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DACBUSY 0x80 883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_FIFOCNTRL 0x07 */ 903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FIFORESET 0x02 913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCANENABLE 0x04 923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CNTRL 0x08 */ 943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RESET 0x20 953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_INTRESET 0x08 963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKACC 0x00 973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIOACC 0x01 983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_AISTAT 0x08 */ 1003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_STATUS 0x80 1013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_INTCLOCK 0x09 */ 1033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_ADINT 0x80 1043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKSEL 0x03 1053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CNTRDIO 0x0a */ 1073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_FREQ12 0x80 1083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_AICONF 0x0b */ 1103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_U10 0x0c 1113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_U5 0x0d 1123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_B10 0x08 1133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_RANGE_B5 0x00 1143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_20 0x00 1153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_15 0x10 1163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_10 0x20 1173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_SCINT_5 0x30 1183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_CLKCT 0x0f */ 1203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT1 0x56 /* mode3 counter 1 - write low byte only */ 1213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_CLKCT2 0xb6 /* mode3 counter 2 - write high and low byte */ 1223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DMM32AT_DIOCONF 0x0f */ 1243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIENABLE 0x80 1253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRA 0x10 1263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRB 0x02 1273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRCL 0x01 1283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define DMM32AT_DIRCH 0x08 1293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* board AI ranges in comedi structure */ 1319ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pembertonstatic const struct comedi_lrange dmm32at_airanges = { 1323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4, 1333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 1340a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(10), 1350a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(5), 1360a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(10), 1370a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(5), 1380a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral } 1393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* register values for above ranges */ 1423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic const unsigned char dmm32at_rangebits[] = { 1433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_U10, 1443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_U5, 1453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_B10, 1463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani DMM32AT_RANGE_B5, 1473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* only one of these ranges is valid, as set by a jumper on the 1503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * board. The application should only use the range set by the jumper 1513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 1529ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pembertonstatic const struct comedi_lrange dmm32at_aoranges = { 1533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4, 1543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 1550a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(10), 1560a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral UNI_RANGE(5), 1570a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(10), 1580a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral BIP_RANGE(5), 1590a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral } 1603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 1633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Board descriptions for two imaginary boards. Describing the 1643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * boards in this way is optional, and completely driver-dependent. 1653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Some drivers use arrays such as this, other do not. 1663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 16738baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pembertonstruct dmm32at_board { 1683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani const char *name; 1693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_chans; 1703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_bits; 1719ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pemberton const struct comedi_lrange *ai_ranges; 1723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ao_chans; 1733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ao_bits; 1749ced1de69125b60f40127eddaa3be2a92bb0a1dfBill Pemberton const struct comedi_lrange *ao_ranges; 1753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int have_dio; 1763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int dio_chans; 17738baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pemberton}; 17838baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pembertonstatic const struct dmm32at_board dmm32at_boards[] = { 1793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani { 1800a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .name = "dmm32at", 1810a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_chans = 32, 1820a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_bits = 16, 1830a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ai_ranges = &dmm32at_airanges, 1840a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_chans = 4, 1850a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_bits = 12, 1860a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .ao_ranges = &dmm32at_aoranges, 1870a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .have_dio = 1, 1880a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral .dio_chans = 24, 1890a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral }, 1903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 1913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 1933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Useful for shorthand access to the particular board structure 1943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 19538baea3abba76b48ff599e1c5b7eccc80b2a7e3dBill Pemberton#define thisboard ((const struct dmm32at_board *)dev->board_ptr) 1963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* this structure is for data unique to this hardware driver. If 1983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * several hardware drivers keep similar information in this structure, 19971b5f4f11971dea972832ad63a994c7e5b45db6bBill Pemberton * feel free to suggest moving the variable to the struct comedi_device struct. 2003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 20139d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pembertonstruct dmm32at_private { 2023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int data; 2043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ai_inuse; 2053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int ai_scans_left; 2063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Used for AO readback */ 208790c55415aa31f4c732729f94d2c3a54f7d3bfc2Bill Pemberton unsigned int ao_readback[4]; 2093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char dio_config; 2103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 21139d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton}; 2123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 2143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * most drivers define the following macro to make it easy to 2153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * access the private structure. 2163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 21739d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton#define devpriv ((struct dmm32at_private *)dev->private) 2183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 220139dfbdfacb02e3ef3df936d2fabd1ad5f14ea88Bill Pemberton * The struct comedi_driver structure tells the Comedi core module 2213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * which functions to call to configure/deconfigure (attach/detach) 2223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the board, and also about the kernel module that contains 2233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the device code. 2243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 2250a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_attach(struct comedi_device *dev, 2260a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_devconfig *it); 227da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_detach(struct comedi_device *dev); 228139dfbdfacb02e3ef3df936d2fabd1ad5f14ea88Bill Pembertonstatic struct comedi_driver driver_dmm32at = { 22968c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .driver_name = "dmm32at", 23068c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .module = THIS_MODULE, 23168c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .attach = dmm32at_attach, 23268c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .detach = dmm32at_detach, 2333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* It is not necessary to implement the following members if you are 2343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * writing a driver for a ISA PnP or PCI card */ 2353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* Most drivers will support multiple types of boards by 2363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * having an array of board structures. These were defined 2373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in dmm32at_boards[] above. Note that the element 'name' 2383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * was first in the structure -- Comedi uses this fact to 2393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * extract the name of the board without knowing any details 2403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * about the structure except for its length. 2413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * When a device is attached (by comedi_config), the name 2423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * of the device is given to Comedi, and Comedi tries to 2433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * match it by going through the list of board names. If 2443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * there is a match, the address of the pointer is put 2453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * into dev->board_ptr and driver->attach() is called. 2463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 2473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Note that these are not necessary if you can determine 2483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the type of board in software. ISA PnP, PCI, and PCMCIA 2493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * devices are such boards. 2503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 25168c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .board_name = &dmm32at_boards[0].name, 25268c3dbff9fc9f25872408d0e95980d41733d48d0Bill Pemberton .offset = sizeof(struct dmm32at_board), 2538629efa4cbf6f89a54a85af4b8bc31762af01800Bill Pemberton .num_names = ARRAY_SIZE(dmm32at_boards), 2543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani}; 2553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* prototypes for driver functions below */ 2570a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_rinsn(struct comedi_device *dev, 2580a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2590a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 2600a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_winsn(struct comedi_device *dev, 2610a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2620a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 2630a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_rinsn(struct comedi_device *dev, 2640a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2650a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 2660a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_bits(struct comedi_device *dev, 2670a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2680a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data); 2690a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_config(struct comedi_device *dev, 2700a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2710a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, 2720a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral unsigned int *data); 2730a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmdtest(struct comedi_device *dev, 2740a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2750a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_cmd *cmd); 2760a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmd(struct comedi_device *dev, 2770a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s); 2780a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cancel(struct comedi_device *dev, 2790a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s); 2803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic int dmm32at_ns_to_timer(unsigned int *ns, int round); 28170265d24e3404fe798b6edd55a02016b1edb49d7Jiri Slabystatic irqreturn_t dmm32at_isr(int irq, void *d); 282814900c904140cfe7f3e48cabec06b3eec57e0eaBill Pembertonvoid dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec); 2833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 2853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Attach is called by the Comedi core to configure the driver 2863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * for a particular board. If you specified a board_name array 2873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in the driver structure, dev->board_ptr contains that 2883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * address. 2893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 2900a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_attach(struct comedi_device *dev, 2910a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_devconfig *it) 2923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 2933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int ret; 29434c43922e62708d45e9660eee4b4f1fb7b4bf2c7Bill Pemberton struct comedi_subdevice *s; 2953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char aihi, ailo, fifostat, aistat, intstat, airback; 2963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned long iobase; 2973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int irq; 2983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 2993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani iobase = it->options[0]; 3003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani irq = it->options[1]; 3013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 30227bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_INFO "comedi%d: dmm32at: attaching\n", dev->minor); 30327bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_DEBUG "dmm32at: probing at address 0x%04lx, irq %u\n", 30427bf0bc906e80fdb531524dab22a7851a4c21698Mark iobase, irq); 3053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* register address space */ 3073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!request_region(iobase, DMM32AT_MEMSIZE, thisboard->name)) { 30827bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_ERR "comedi%d: dmm32at: I/O port conflict\n", 30927bf0bc906e80fdb531524dab22a7851a4c21698Mark dev->minor); 3103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EIO; 3113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->iobase = iobase; 3133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* the following just makes sure the board is there and gets 3153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani it to a known state */ 3163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the board */ 3183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_RESET); 3193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* allow a millisecond to reset */ 3213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani udelay(1000); 3223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero scan and fifo control */ 3243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, 0x0); 3253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero interrupt and clock control */ 3273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, 0x0); 3283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write a test channel range, the high 3 bits should drop */ 3303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, 0x80); 3313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, 0xff); 3323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range at 10v unipolar */ 3343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, DMM32AT_RANGE_U10); 3353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should take 10 us to settle, here's a hundred */ 3373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani udelay(100); 3383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read back the values */ 3403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani ailo = dmm_inb(dev, DMM32AT_AILOW); 3413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani aihi = dmm_inb(dev, DMM32AT_AIHIGH); 3423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani fifostat = dmm_inb(dev, DMM32AT_FIFOSTAT); 3433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani aistat = dmm_inb(dev, DMM32AT_AISTAT); 3443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani intstat = dmm_inb(dev, DMM32AT_INTCLOCK); 3453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani airback = dmm_inb(dev, DMM32AT_AIRBACK); 3463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 34727bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_DEBUG "dmm32at: lo=0x%02x hi=0x%02x fifostat=0x%02x\n", 3480a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral ailo, aihi, fifostat); 34927bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_DEBUG 35027bf0bc906e80fdb531524dab22a7851a4c21698Mark "dmm32at: aistat=0x%02x intstat=0x%02x airback=0x%02x\n", 3510a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral aistat, intstat, airback); 3523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((ailo != 0x00) || (aihi != 0x1f) || (fifostat != 0x80) || 3540a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral (aistat != 0x60 || (intstat != 0x00) || airback != 0x0c)) { 35527bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_ERR "dmmat32: board detection failed\n"); 3563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EIO; 3573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* board is there, register interrupt */ 3603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (irq) { 3615f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman ret = request_irq(irq, dmm32at_isr, 0, thisboard->name, dev); 3623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (ret < 0) { 36327bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_ERR "dmm32at: irq conflict\n"); 3643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return ret; 3653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->irq = irq; 3673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 3683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 3703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * If you can probe the device to determine what device in a series 3713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * it is, this is the place to do it. Otherwise, dev->board_ptr 3723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * should already be initialized. 3733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 3742696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* dev->board_ptr = dmm32at_probe(dev); */ 3753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 3773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Initialize dev->board_name. Note that we can use the "thisboard" 3783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * macro now, since we just initialized it in the last line. 3793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 3803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->board_name = thisboard->name; 3813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 3833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Allocate the private structure area. alloc_private() is a 3843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convenient macro defined in comedidev.h. 3853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 38639d31e09a0cc299e01b8acb66b60fbcc453b9c8bBill Pemberton if (alloc_private(dev, sizeof(struct dmm32at_private)) < 0) 3873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ENOMEM; 3883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 3903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Allocate the subdevice structures. alloc_subdevice() is a 3913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convenient macro defined in comedidev.h. 3923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 3933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (alloc_subdevices(dev, 3) < 0) 3943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ENOMEM; 3953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 3963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 0; 3973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dev->read_subdev = s; 3983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* analog input subdevice */ 3993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_AI; 4003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* we support single-ended (ground) and differential */ 4013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; 4023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->ai_chans; 4033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = (1 << thisboard->ai_bits) - 1; 4043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = thisboard->ai_ranges; 4053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->len_chanlist = 32; /* This is the maximum chanlist length that 4063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani the board can handle */ 4073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_read = dmm32at_ai_rinsn; 4083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->do_cmd = dmm32at_ai_cmd; 4093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->do_cmdtest = dmm32at_ai_cmdtest; 4103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->cancel = dmm32at_ai_cancel; 4113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 1; 4133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* analog output subdevice */ 4143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_AO; 4153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_WRITABLE; 4163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->ao_chans; 4173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = (1 << thisboard->ao_bits) - 1; 4183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = thisboard->ao_ranges; 4193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_write = dmm32at_ao_winsn; 4203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_read = dmm32at_ao_rinsn; 4213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s = dev->subdevices + 2; 4233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* digital i/o subdevice */ 4243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (thisboard->have_dio) { 4253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 4273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 4283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the DIO's to the defualt input setting */ 4293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config = DMM32AT_DIRA | DMM32AT_DIRB | 4300a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral DMM32AT_DIRCL | DMM32AT_DIRCH | DMM32AT_DIENABLE; 4313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config); 4323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set up the subdevice */ 4343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_DIO; 4353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 4363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->n_chan = thisboard->dio_chans; 4373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->maxdata = 1; 4383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state = 0; 4393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->range_table = &range_digital; 4403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_bits = dmm32at_dio_insn_bits; 4413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->insn_config = dmm32at_dio_insn_config; 4423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 4433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->type = COMEDI_SUBD_UNUSED; 4443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 4453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* success */ 44727bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_INFO "comedi%d: dmm32at: attached\n", dev->minor); 4483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 4503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 4523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * _detach is called to deconfigure a device. It should deallocate 4553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * resources. 4563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * This function is also called when _attach() fails, so it should be 4573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * careful not to release resources that were not necessarily 4583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * allocated by _attach(). dev->private and dev->subdevices are 4593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * deallocated automatically by the core. 4603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 461da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_detach(struct comedi_device *dev) 4623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 46327bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_INFO "comedi%d: dmm32at: remove\n", dev->minor); 4643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (dev->irq) 4655f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman free_irq(dev->irq, dev); 4663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (dev->iobase) 4673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani release_region(dev->iobase, DMM32AT_MEMSIZE); 4683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 4703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 4713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 4733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * "instructions" read/write data in "one-shot" or "software-triggered" 4743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * mode. 4753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 4763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4770a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_rinsn(struct comedi_device *dev, 4780a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 4790a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 4803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 4813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int n, i; 4823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int d; 4833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char status; 4843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short msb, lsb; 4853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chan; 4863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int range; 4873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the channel and range number */ 4893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chan = CR_CHAN(insn->chanspec) & (s->n_chan - 1); 4913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani range = CR_RANGE(insn->chanspec); 4923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4932696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("channel=0x%02x, range=%d\n",chan,range); */ 4943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* zero scan and fifo control and reset fifo */ 4963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_FIFORESET); 4973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 4983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the ai channel range regs */ 4993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, chan); 5003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, chan); 5013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range bits */ 5023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, dmm32at_rangebits[range]); 5033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 5053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 5063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AIRBACK); 5073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 5083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 5093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 51127bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_WARNING "dmm32at: timeout\n"); 5123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 5133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* convert n samples */ 5163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (n = 0; n < insn->n; n++) { 5173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* trigger conversion */ 5183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CONV, 0xff); 5193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for conversion to end */ 5203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 5213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AISTAT); 5223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 5233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 5243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 52627bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_WARNING "dmm32at: timeout\n"); 5273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 5283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read data */ 5313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lsb = dmm_inb(dev, DMM32AT_AILSB); 5323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani msb = dmm_inb(dev, DMM32AT_AIMSB); 5333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* invert sign bit to make range unsigned, this is an 53525985edcedea6396277003854657b5f3cb31a628Lucas De Marchi idiosyncrasy of the diamond board, it return 5363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani conversions as a signed value, i.e. -32768 to 5373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 32767, flipping the bit and interpreting it as 5383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani signed gives you a range of 0 to 65535 which is 5393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani used by comedi */ 5403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani d = ((msb ^ 0x0080) << 8) + lsb; 5413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[n] = d; 5433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 5443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* return the number of samples read/written */ 5463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return n; 5473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 5483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5490a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cmdtest(struct comedi_device *dev, 5500a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 5510a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_cmd *cmd) 5523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 5533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int err = 0; 5543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int tmp; 5553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int start_chan, gain, i; 5563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5572696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("dmmat32 in command test\n"); */ 5583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* cmdtest tests a particular command to see if it is valid. 5603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Using the cmdtest ioctl, a user can create a valid cmd 5613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * and then have it executes by the cmd ioctl. 5623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * 5633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * cmdtest returns 1,2,3,4 or 0, depending on which tests 5643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the command passes. */ 5653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 1: make sure trigger sources are trivially valid */ 5673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->start_src; 5693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->start_src &= TRIG_NOW; 5703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->start_src || tmp != cmd->start_src) 5713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 5723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_begin_src; 5743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_src &= TRIG_TIMER /*| TRIG_EXT */ ; 5753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) 5763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 5773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->convert_src; 5793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_src &= TRIG_TIMER /*| TRIG_EXT */ ; 5803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->convert_src || tmp != cmd->convert_src) 5813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 5823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_end_src; 5843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_end_src &= TRIG_COUNT; 5853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->scan_end_src || tmp != cmd->scan_end_src) 5863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 5873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->stop_src; 5893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_src &= TRIG_COUNT | TRIG_NONE; 5903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->stop_src || tmp != cmd->stop_src) 5913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 5923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 5933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 5943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 5953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 59627bf0bc906e80fdb531524dab22a7851a4c21698Mark /* step 2: make sure trigger sources are unique and mutually 59727bf0bc906e80fdb531524dab22a7851a4c21698Mark * compatible */ 5983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 599828684f9a6e096f9150bad523c43b75d74b9baddDirk Hohndel /* note that mutual compatibility is not an issue here */ 6003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src != TRIG_TIMER && 6010a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->scan_begin_src != TRIG_EXT) 6023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) 6043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) 6063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 6093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 2; 6103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 3: make sure arguments are trivially compatible */ 6123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->start_arg != 0) { 6143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->start_arg = 0; 6153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define MAX_SCAN_SPEED 1000000 /* in nanoseconds */ 6183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani#define MIN_SCAN_SPEED 1000000000 /* in nanoseconds */ 6193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER) { 6213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg < MAX_SCAN_SPEED) { 6223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = MAX_SCAN_SPEED; 6233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg > MIN_SCAN_SPEED) { 6263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = MIN_SCAN_SPEED; 6273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 6303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* external trigger */ 6313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should be level/edge, hi/lo specification here */ 6323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* should specify multiple external triggers */ 6333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_arg > 9) { 6343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = 9; 6353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src == TRIG_TIMER) { 6393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_arg >= 17500) 6403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 20000; 6413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (cmd->convert_arg >= 12500) 6423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 15000; 6433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (cmd->convert_arg >= 7500) 6443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 10000; 6453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else 6463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 5000; 6473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 6493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* external trigger */ 6503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* see above */ 6513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_arg > 9) { 6523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->convert_arg = 9; 6533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_end_arg != cmd->chanlist_len) { 6583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_end_arg = cmd->chanlist_len; 6593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src == TRIG_COUNT) { 6623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg > 0xfffffff0) { 6633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 0xfffffff0; 6643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg == 0) { 6673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 1; 6683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 6713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* TRIG_NONE */ 6723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_arg != 0) { 6733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->stop_arg = 0; 6743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 6793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 3; 6803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 4: fix up any arguments */ 6823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 6833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER) { 6843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->scan_begin_arg; 6853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_ns_to_timer(&cmd->scan_begin_arg, 6860a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->flags & TRIG_ROUND_MASK); 6873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (tmp != cmd->scan_begin_arg) 6883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 6903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->convert_src == TRIG_TIMER) { 6913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani tmp = cmd->convert_arg; 6923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_ns_to_timer(&cmd->convert_arg, 6930a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->flags & TRIG_ROUND_MASK); 6943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (tmp != cmd->convert_arg) 6953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 6963c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->scan_begin_src == TRIG_TIMER && 6970a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->scan_begin_arg < 6980a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->convert_arg * cmd->scan_end_arg) { 6993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani cmd->scan_begin_arg = 7000a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral cmd->convert_arg * cmd->scan_end_arg; 7013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 7063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 4; 7073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* step 5 check the channel list, the channel list for this 7093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani board must be consecutive and gains must be the same */ 7103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->chanlist) { 7123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani gain = CR_RANGE(cmd->chanlist[0]); 7133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani start_chan = CR_CHAN(cmd->chanlist[0]); 7143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 1; i < cmd->chanlist_len; i++) { 7153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (CR_CHAN(cmd->chanlist[i]) != 7160a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral (start_chan + i) % s->n_chan) { 7173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, 7180a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral "entries in chanlist must be consecutive channels, counting upwards\n"); 7193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (CR_RANGE(cmd->chanlist[i]) != gain) { 7223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, 7230a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral "entries in chanlist must all have the same gain\n"); 7243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani err++; 7253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (err) 7303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 5; 7313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 7333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 7343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 735da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 7363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 737ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 7383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i, range; 7393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chanlo, chanhi, status; 7403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!cmd->chanlist) 7423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 7433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the channel list and range */ 7453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanlo = CR_CHAN(cmd->chanlist[0]) & (s->n_chan - 1); 7463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanhi = chanlo + cmd->chanlist_len - 1; 7473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (chanhi >= s->n_chan) 7483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 7493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani range = CR_RANGE(cmd->chanlist[0]); 7503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset fifo */ 7523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_FIFORESET); 7533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set scan enable */ 7553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_FIFOCNTRL, DMM32AT_SCANENABLE); 7563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the ai channel range regs */ 7583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AILOW, chanlo); 7593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AIHIGH, chanhi); 7603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the range bits */ 7623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_AICONF, dmm32at_rangebits[range]); 7633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the interrupt just in case */ 7653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_INTRESET); 7663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (cmd->stop_src == TRIG_COUNT) 7683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left = cmd->stop_arg; 7693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else { /* TRIG_NONE */ 77027bf0bc906e80fdb531524dab22a7851a4c21698Mark devpriv->ai_scans_left = 0xffffffff; /* indicates TRIG_NONE to 77127bf0bc906e80fdb531524dab22a7851a4c21698Mark * isr */ 7723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 7753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 7763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_AIRBACK); 7773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_STATUS) == 0) 7783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 7793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 78127bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_WARNING "dmm32at: timeout\n"); 7823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 7833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 7853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left > 1) { 7863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* start the clock and enable the interrupts */ 7873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm32at_setaitimer(dev, cmd->scan_begin_arg); 7883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } else { 7893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* start the interrups and initiate a single scan */ 7903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, DMM32AT_ADINT); 7913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CONV, 0xff); 7923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 7933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 79427bf0bc906e80fdb531524dab22a7851a4c21698Mark/* printk("dmmat32 in command\n"); */ 7953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 79627bf0bc906e80fdb531524dab22a7851a4c21698Mark/* for(i=0;i<cmd->chanlist_len;i++) */ 79727bf0bc906e80fdb531524dab22a7851a4c21698Mark/* comedi_buf_put(s->async,i*100); */ 7983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 79927bf0bc906e80fdb531524dab22a7851a4c21698Mark/* s->async->events |= COMEDI_CB_EOA; */ 80027bf0bc906e80fdb531524dab22a7851a4c21698Mark/* comedi_event(dev, s); */ 8013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 8033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8060a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ai_cancel(struct comedi_device *dev, 8070a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s) 8083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left = 1; 8103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 0; 8113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 81370265d24e3404fe798b6edd55a02016b1edb49d7Jiri Slabystatic irqreturn_t dmm32at_isr(int irq, void *d) 8143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char intstat; 8163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned int samp; 8173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short msb, lsb; 8183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 81971b5f4f11971dea972832ad63a994c7e5b45db6bBill Pemberton struct comedi_device *dev = d; 8203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (!dev->attached) { 8223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_error(dev, "spurious interrupt"); 8233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return IRQ_HANDLED; 8243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani intstat = dmm_inb(dev, DMM32AT_INTCLOCK); 8273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (intstat & DMM32AT_ADINT) { 82934c43922e62708d45e9660eee4b4f1fb7b4bf2c7Bill Pemberton struct comedi_subdevice *s = dev->read_subdev; 830ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 8313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < cmd->chanlist_len; i++) { 8333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* read data */ 8343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lsb = dmm_inb(dev, DMM32AT_AILSB); 8353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani msb = dmm_inb(dev, DMM32AT_AIMSB); 8363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* invert sign bit to make range unsigned */ 8383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani samp = ((msb ^ 0x0080) << 8) + lsb; 8393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_buf_put(s->async, samp); 8403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left != 0xffffffff) { /* TRIG_COUNT */ 8433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ai_scans_left--; 8443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (devpriv->ai_scans_left == 0) { 8453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* disable further interrupts and clocks */ 8463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, 0x0); 8473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the buffer to be flushed with an EOF */ 8483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->async->events |= COMEDI_CB_EOA; 8493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* flush the buffer */ 8533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani comedi_event(dev, s); 8543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 8553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* reset the interrupt */ 8573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_INTRESET); 8583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return IRQ_HANDLED; 8593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* This function doesn't require a particular form, this is just 8623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * what happens to be used in some of the drivers. It should 8633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * convert ns nanoseconds to a counter value suitable for programming 8643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the device. Also, it should adjust ns so that it cooresponds to 8653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * the actual time that the device will use. */ 8663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplanistatic int dmm32at_ns_to_timer(unsigned int *ns, int round) 8673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* trivial timer */ 8693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if your timing is done through two cascaded timers, the 8703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * i8253_cascade_ns_to_timer() function in 8253.h can be 8713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * very helpful. There are also i8254_load() and i8254_mm_load() 8723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * which can be used to load values into the ubiquitous 8254 counters 8733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 8743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return *ns; 8763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 8773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8780a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_winsn(struct comedi_device *dev, 8790a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 8800a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 8813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 8823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 8833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 8843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char hi, lo, status; 8853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8863c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Writing a list of values to an AO channel is probably not 8873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * very useful, but that's how the interface is defined. */ 8883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < insn->n; i++) { 8893c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->ao_readback[chan] = data[i]; 8913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 8923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get the low byte */ 8933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo = data[i] & 0x00ff; 8943c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* high byte also contains channel number */ 8953c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani hi = (data[i] >> 8) + chan * (1 << 6); 8962696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* printk("writing 0x%02x 0x%02x\n",hi,lo); */ 8973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the low and high values to the board */ 8983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DACLSB, lo); 8993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DACMSB, hi); 9003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* wait for circuit to settle */ 9023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < 40000; i++) { 9033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_DACSTAT); 9043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((status & DMM32AT_DACBUSY) == 0) 9053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani break; 9063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (i == 40000) { 90827bf0bc906e80fdb531524dab22a7851a4c21698Mark printk(KERN_WARNING "dmm32at: timeout\n"); 9093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -ETIMEDOUT; 9103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* dummy read to update trigger the output */ 9123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani status = dmm_inb(dev, DMM32AT_DACMSB); 9133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* return the number of samples read/written */ 9173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return i; 9183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9193c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* AO subdevices should have a read insn as well as a write insn. 9213c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * Usually this means copying a value stored in devpriv. */ 9220a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_ao_rinsn(struct comedi_device *dev, 9230a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9240a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int i; 9273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 9283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani for (i = 0; i < insn->n; i++) 9303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[i] = devpriv->ao_readback[chan]; 9313c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return i; 9333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* DIO devices are slightly special. Although it is possible to 9363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * implement the insn_read/insn_write interface, it is much more 9373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * useful to applications if you implement the insn_bits interface. 9383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * This allows packed reading/writing of the DIO channels. The 9393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * comedi core can convert between insn_bits and insn_read/write */ 9400a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_bits(struct comedi_device *dev, 9410a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9420a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char diobits; 9453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (insn->n != 2) 9473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 9483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* The insn data is a mask in data[0] and the new data 9503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * in data[1], each channel cooresponding to a bit. */ 9513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (data[0]) { 9523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state &= ~data[0]; 9533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= data[0] & data[1]; 9543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* Write out the new digital output lines */ 9552696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* outw(s->state,dev->iobase + DMM32AT_DIO); */ 9563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 9593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 9603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if either part of dio is set for output */ 9623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (((devpriv->dio_config & DMM32AT_DIRCL) == 0) || 9630a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral ((devpriv->dio_config & DMM32AT_DIRCH) == 0)) { 9643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x00ff0000) >> 16; 9653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOC, diobits); 9663c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9673c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((devpriv->dio_config & DMM32AT_DIRB) == 0) { 9683c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x0000ff00) >> 8; 9693c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOB, diobits); 9703c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9713c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if ((devpriv->dio_config & DMM32AT_DIRA) == 0) { 9723c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani diobits = (s->state & 0x000000ff); 9733c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOA, diobits); 9743c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani } 9753c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9763c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* now read the state back in */ 9773c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state = dmm_inb(dev, DMM32AT_DIOC); 9783c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state <<= 8; 9793c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= dmm_inb(dev, DMM32AT_DIOB); 9803c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state <<= 8; 9813c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani s->state |= dmm_inb(dev, DMM32AT_DIOA); 9823c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani data[1] = s->state; 9833c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9843c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* on return, data[1] contains the value of the digital 9853c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * input and output lines. */ 9862696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* data[1]=inw(dev->iobase + DMM32AT_DIO); */ 9873c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* or we could just return the software copy of the output values if 9883c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * it was a purely digital output subdevice */ 9892696fb57e6af653dd8b4df41b16754579f42fc78Bill Pemberton /* data[1]=s->state; */ 9903c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9913c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 2; 9923c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 9933c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 9940a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int dmm32at_dio_insn_config(struct comedi_device *dev, 9950a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 9960a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 9973c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 9983c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char chanbit; 9993c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani int chan = CR_CHAN(insn->chanspec); 10003c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10013c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (insn->n != 1) 10023c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return -EINVAL; 10033c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10043c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani if (chan < 8) 10053c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRA; 10063c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (chan < 16) 10073c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRB; 10083c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else if (chan < 20) 10093c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRCL; 10103c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani else 10113c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani chanbit = DMM32AT_DIRCH; 10123c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10133c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* The input or output configuration of each digital line is 10143c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * configured by a special insn_config instruction. chanspec 10153c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * contains the channel to be changed, and data[0] contains the 10163c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * value COMEDI_INPUT or COMEDI_OUTPUT. */ 10173c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10183c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* if output clear the bit, otherwise set it */ 101920962c10c19862c58c03eec2434279a5d104c40eAndrea Gelmini if (data[0] == COMEDI_OUTPUT) 10203c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config &= ~chanbit; 102120962c10c19862c58c03eec2434279a5d104c40eAndrea Gelmini else 10223c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani devpriv->dio_config |= chanbit; 10233c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the DIO regs */ 10243c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_DIOACC); 10253c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the DIO's to the new configuration setting */ 10263c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_DIOCONF, devpriv->dio_config); 10273c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10283c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani return 1; 10293c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 10303c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 1031da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonvoid dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec) 10323c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani{ 10333c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned char lo1, lo2, hi2; 10343c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani unsigned short both2; 10353c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10363c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* based on 10mhz clock */ 10373c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo1 = 200; 10383c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani both2 = nansec / 20000; 10393c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani hi2 = (both2 & 0xff00) >> 8; 10403c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani lo2 = both2 & 0x00ff; 10413c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10423c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* set the counter frequency to 10mhz */ 10433c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRDIO, 0); 10443c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10453c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* get access to the clock regs */ 10463c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CNTRL, DMM32AT_CLKACC); 10473c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10483c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the counter 1 control word and low byte to counter */ 10493c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLKCT, DMM32AT_CLKCT1); 10503c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK1, lo1); 10513c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10523c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* write the counter 2 control word and low byte then to counter */ 10533c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLKCT, DMM32AT_CLKCT2); 10543c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK2, lo2); 10553c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_CLK2, hi2); 10563c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10573c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani /* enable the ai conversion interrupt and the clock to start scans */ 10583c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani dmm_outb(dev, DMM32AT_INTCLOCK, DMM32AT_ADINT | DMM32AT_CLKSEL); 10593c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10603c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani} 10613c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani 10623c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani/* 10633c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * A convenient macro that defines init_module() and cleanup_module(), 10643c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani * as necessary. 10653c501880ac4436ad2db5feed6e7d7548e13d539fPerry J. Piplani */ 10667114a28011f9d5f3d981731ad341177c21f9d948Arun Thomasstatic int __init driver_dmm32at_init_module(void) 10677114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas{ 10687114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas return comedi_driver_register(&driver_dmm32at); 10697114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas} 10707114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas 10717114a28011f9d5f3d981731ad341177c21f9d948Arun Thomasstatic void __exit driver_dmm32at_cleanup_module(void) 10727114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas{ 10737114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas comedi_driver_unregister(&driver_dmm32at); 10747114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas} 10757114a28011f9d5f3d981731ad341177c21f9d948Arun Thomas 10767114a28011f9d5f3d981731ad341177c21f9d948Arun Thomasmodule_init(driver_dmm32at_init_module); 10777114a28011f9d5f3d981731ad341177c21f9d948Arun Thomasmodule_exit(driver_dmm32at_cleanup_module); 107890f703d30dd3e0c16ff80f35e34e511385a05ad5Arun Thomas 107990f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_AUTHOR("Comedi http://www.comedi.org"); 108090f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_DESCRIPTION("Comedi low-level driver"); 108190f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_LICENSE("GPL"); 1082