// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/das08.c * comedi module for common DAS08 support (used by ISA/PCI/PCMCIA drivers) * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <[email protected]> * Copyright (C) 2001,2002,2003 Frank Mori Hess <[email protected]> * Copyright (C) 2004 Salvador E. Tropea <[email protected]> <[email protected]> */ #include <linux/module.h> #include <linux/comedi/comedidev.h> #include <linux/comedi/comedi_8255.h> #include <linux/comedi/comedi_8254.h> #include "das08.h" /* * Data format of DAS08_AI_LSB_REG and DAS08_AI_MSB_REG depends on * 'ai_encoding' member of board structure: * * das08_encode12 : DATA[11..4] = MSB[7..0], DATA[3..0] = LSB[7..4]. * das08_pcm_encode12 : DATA[11..8] = MSB[3..0], DATA[7..9] = LSB[7..0]. * das08_encode16 : SIGN = MSB[7], MAGNITUDE[14..8] = MSB[6..0], * MAGNITUDE[7..0] = LSB[7..0]. * SIGN==0 for negative input, SIGN==1 for positive input. * Note: when read a second time after conversion * complete, MSB[7] is an "over-range" bit. */ #define DAS08_AI_LSB_REG … #define DAS08_AI_MSB_REG … #define DAS08_AI_TRIG_REG … #define DAS08_STATUS_REG … #define DAS08_STATUS_AI_BUSY … /* * The IRQ status bit is set to 1 by a rising edge on the external interrupt * input (which may be jumpered to the pacer output). It is cleared by * setting the INTE control bit to 0. Not present on "JR" boards. */ #define DAS08_STATUS_IRQ … /* digital inputs (not "JR" boards) */ #define DAS08_STATUS_DI(x) … #define DAS08_CONTROL_REG … /* * Note: The AI multiplexor channel can also be read from status register using * the same mask. */ #define DAS08_CONTROL_MUX_MASK … #define DAS08_CONTROL_MUX(x) … #define DAS08_CONTROL_INTE … #define DAS08_CONTROL_DO_MASK … /* digital outputs (not "JR" boards) */ #define DAS08_CONTROL_DO(x) … /* * (R/W) programmable AI gain ("PGx" and "AOx" boards): * + bits 3..0 (R/W) show/set the gain for the current AI mux channel * + bits 6..4 (R) show the current AI mux channel * + bit 7 (R) not unused */ #define DAS08_GAIN_REG … #define DAS08JR_DI_REG … #define DAS08JR_DO_REG … /* (W) analog output l.s.b. registers for 2 channels ("JR" boards) */ #define DAS08JR_AO_LSB_REG(x) … /* (W) analog output m.s.b. registers for 2 channels ("JR" boards) */ #define DAS08JR_AO_MSB_REG(x) … /* * (R) update analog outputs ("JR" boards set for simultaneous output) * (same register as digital inputs) */ #define DAS08JR_AO_UPDATE_REG … /* (W) analog output l.s.b. registers for 2 channels ("AOx" boards) */ #define DAS08AOX_AO_LSB_REG(x) … /* (W) analog output m.s.b. registers for 2 channels ("AOx" boards) */ #define DAS08AOX_AO_MSB_REG(x) … /* * (R) update analog outputs ("AOx" boards set for simultaneous output) * (any of the analog output registers could be used for this) */ #define DAS08AOX_AO_UPDATE_REG … /* gainlist same as _pgx_ below */ static const struct comedi_lrange das08_pgl_ai_range = …; static const struct comedi_lrange das08_pgh_ai_range = …; static const struct comedi_lrange das08_pgm_ai_range = …; static const struct comedi_lrange *const das08_ai_lranges[] = …; static const int das08_pgh_ai_gainlist[] = …; static const int das08_pgl_ai_gainlist[] = …; static const int das08_pgm_ai_gainlist[] = …; static const int *const das08_ai_gainlists[] = …; static int das08_ai_eoc(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned long context) { … } static int das08_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int das08_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int das08_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int das08jr_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int das08jr_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static void das08_ao_set_data(struct comedi_device *dev, unsigned int chan, unsigned int data) { … } static int das08_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } int das08_common_attach(struct comedi_device *dev, unsigned long iobase) { … } EXPORT_SYMBOL_GPL(…); static int __init das08_init(void) { … } module_init(…) …; static void __exit das08_exit(void) { … } module_exit(das08_exit); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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