1 // SPDX-License-Identifier: GPL-2.0+
4  *     Driver for DAQCard-700 DIO/AI
7  *     COMEDI - Linux Control and Measurement Device Interface
13  * Description: National Instruments PCMCIA DAQCard-700
16  * Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
20  * The daqcard-700 appears in Comedi as a  digital I/O subdevice (0) with
21  * 16 channels and a analog input subdevice (1) with 16 single-ended channels
24  * Digital:  The channel 0 corresponds to the daqcard-700's output
25  * port, bit 0; channel 8 corresponds to the input port, bit 0.
27  * Digital direction configuration: channels 0-7 output, 8-15 input.
29  * Analog: The input  range is 0 to 4095 with a default of -10 to +10 volts.
31  *       0 for -10 to 10V bipolar
32  *       1 for -5 to 5V bipolar
33  *       2 for -2.5 to 2.5V bipolar
47 #define DIO_W		0x04	/* WO 8bit */
48 #define DIO_R		0x05	/* RO 8bit */
49 #define CMD_R1		0x00	/* WO 8bit */
50 #define CMD_R2		0x07	/* RW 8bit */
51 #define CMD_R3		0x05	/* W0 8bit */
52 #define STA_R1		0x00	/* RO 8bit */
53 #define STA_R2		0x01	/* RO 8bit */
54 #define ADFIFO_R	0x02	/* RO 16bit */
55 #define ADCLEAR_R	0x01	/* WO 8bit */
56 #define CDA_R0		0x08	/* RW 8bit */
57 #define CDA_R1		0x09	/* RW 8bit */
58 #define CDA_R2		0x0A	/* RW 8bit */
59 #define CMO_R		0x0B	/* RO 8bit */
60 #define TIC_R		0x06	/* WO 8bit */
84 			outb(s->state & 0xff, dev->iobase + DIO_W);  in daq700_dio_insn_bits()
87 	val = s->state & 0xff;  in daq700_dio_insn_bits()
88 	val |= inb(dev->iobase + DIO_R) << 8;  in daq700_dio_insn_bits()
92 	return insn->n;  in daq700_dio_insn_bits()
107 	s->io_bits = 0x00ff;  in daq700_dio_insn_config()
109 	return insn->n;  in daq700_dio_insn_config()
119 	status = inb(dev->iobase + STA_R2);  in daq700_ai_eoc()
121 		return -EOVERFLOW;  in daq700_ai_eoc()
122 	status = inb(dev->iobase + STA_R1);  in daq700_ai_eoc()
124 		return -ENODATA;  in daq700_ai_eoc()
127 	return -EBUSY;  in daq700_ai_eoc()
137 	unsigned int chan	= CR_CHAN(insn->chanspec);  in daq700_ai_rinsn()
138 	unsigned int aref	= CR_AREF(insn->chanspec);  in daq700_ai_rinsn()
139 	unsigned int range	= CR_RANGE(insn->chanspec);  in daq700_ai_rinsn()
148 	outb(r3_bits | (range & 0x03), dev->iobase + CMD_R3);  in daq700_ai_rinsn()
151 	/* set mask scan bit high to disable scanning */  in daq700_ai_rinsn()
152 	outb(chan | 0x80, dev->iobase + CMD_R1);  in daq700_ai_rinsn()
157 	for (n = 0; n < insn->n; n++) {  in daq700_ai_rinsn()
159 		outb(0x00, dev->iobase + CMD_R2); /* enable ADC conversions */  in daq700_ai_rinsn()
160 		outb(0x30, dev->iobase + CMO_R); /* mode 0 out0 L, from H */  in daq700_ai_rinsn()
161 		outb(0x00, dev->iobase + ADCLEAR_R);	/* clear the ADC FIFO */  in daq700_ai_rinsn()
162 		/* read 16bit junk from FIFO to clear */  in daq700_ai_rinsn()
163 		inw(dev->iobase + ADFIFO_R);  in daq700_ai_rinsn()
165 		outb(0x32, dev->iobase + CMO_R);  in daq700_ai_rinsn()
173 		d = inw(dev->iobase + ADFIFO_R);  in daq700_ai_rinsn()
175 		/* Bipolar Offset Binary: 0 to 4095 for -10 to +10 */  in daq700_ai_rinsn()
187  * Multiple-channel scanning is disabled.
189  * The analog input range is set to +-10 V
190  * The analog input mode is single-ended.
197 	unsigned long iobase = dev->iobase;  in daq700_ai_config()
200 	outb(0x00, iobase + CMD_R2);	/* clear all bits */  in daq700_ai_config()
201 	outb(0x00, iobase + CMD_R3);	/* set +-10 range */  in daq700_ai_config()
203 	outb(0x00, iobase + TIC_R);	/* clear counter interrupt */  in daq700_ai_config()
204 	outb(0x00, iobase + ADCLEAR_R);	/* clear the ADC FIFO */  in daq700_ai_config()
205 	inw(iobase + ADFIFO_R);		/* read 16bit junk from FIFO to clear */  in daq700_ai_config()
215 	link->config_flags |= CONF_AUTO_SET_IO;  in daq700_auto_attach()
219 	dev->iobase = link->resource[0]->start;  in daq700_auto_attach()
225 	/* DAQCard-700 dio */  in daq700_auto_attach()
226 	s = &dev->subdevices[0];  in daq700_auto_attach()
227 	s->type		= COMEDI_SUBD_DIO;  in daq700_auto_attach()
228 	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;  in daq700_auto_attach()
229 	s->n_chan	= 16;  in daq700_auto_attach()
230 	s->range_table	= &range_digital;  in daq700_auto_attach()
231 	s->maxdata	= 1;  in daq700_auto_attach()
232 	s->insn_bits	= daq700_dio_insn_bits;  in daq700_auto_attach()
233 	s->insn_config	= daq700_dio_insn_config;  in daq700_auto_attach()
234 	s->io_bits	= 0x00ff;  in daq700_auto_attach()
236 	/* DAQCard-700 ai */  in daq700_auto_attach()
237 	s = &dev->subdevices[1];  in daq700_auto_attach()
238 	s->type = COMEDI_SUBD_AI;  in daq700_auto_attach()
239 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;  in daq700_auto_attach()
240 	s->n_chan = 16;  in daq700_auto_attach()
241 	s->maxdata = BIT(12) - 1;  in daq700_auto_attach()
242 	s->range_table = &range_daq700_ai;  in daq700_auto_attach()
243 	s->insn_read = daq700_ai_rinsn;  in daq700_auto_attach()
278 	"Comedi driver for National Instruments PCMCIA DAQCard-700 DIO/AI");