1 // SPDX-License-Identifier: GPL-2.0+
6  * COMEDI - Linux Control and Measurement Device Interface
7  * Copyright (C) 1997-2002 David A. Schleef <ds@schleef.org>
19  * The driver works for analog input and output and digital input and
23  * It has 16 single-ended or 8 differential Analogue Input channels with
24  * 12-bit resolution.  Ranges : 5V, 10V, +/-5V, +/-10V, 0..20mA and 4..20mA.
28  * There are 4 x 12-bit Analogue Outputs.  Ranges : 5V, 10V, +/-5V, +/-10V
30  * 16 x Digital Inputs, 24V
32  * 8 x Digital Outputs, 24V, 1A
34  * 4 x 16-bit counters - not implemented
57 #define ICP_MULTI_DI		8	/* R/W: Digital inputs */
58 #define ICP_MULTI_DO		0x0A	/* R/W: Digital outputs */
63 #define ICP_MULTI_INT_DOUT_ERR	BIT(2)	/* Digital output error interrupt */
64 #define ICP_MULTI_INT_DIN_STAT	BIT(3)	/* Digital input status change int. */
75 /* analog input and output have the same range options */
94 	status = readw(dev->mmio + ICP_MULTI_ADC_CSR);  in icp_multi_ai_eoc()
97 	return -EBUSY;  in icp_multi_ai_eoc()
105 	unsigned int chan = CR_CHAN(insn->chanspec);  in icp_multi_ai_insn_read()
106 	unsigned int range = CR_RANGE(insn->chanspec);  in icp_multi_ai_insn_read()
107 	unsigned int aref = CR_AREF(insn->chanspec);  in icp_multi_ai_insn_read()
120 	writew(adc_csr, dev->mmio + ICP_MULTI_ADC_CSR);  in icp_multi_ai_insn_read()
122 	for (n = 0; n < insn->n; n++) {  in icp_multi_ai_insn_read()
125 		       dev->mmio + ICP_MULTI_ADC_CSR);  in icp_multi_ai_insn_read()
129 		/*  Wait for conversion to complete, or get fed up waiting */  in icp_multi_ai_insn_read()
134 		data[n] = (readw(dev->mmio + ICP_MULTI_AI) >> 4) & 0x0fff;  in icp_multi_ai_insn_read()
147 	status = readw(dev->mmio + ICP_MULTI_DAC_CSR);  in icp_multi_ao_ready()
150 	return -EBUSY;  in icp_multi_ao_ready()
158 	unsigned int chan = CR_CHAN(insn->chanspec);  in icp_multi_ao_insn_write()
159 	unsigned int range = CR_RANGE(insn->chanspec);  in icp_multi_ao_insn_write()
166 	writew(dac_csr, dev->mmio + ICP_MULTI_DAC_CSR);  in icp_multi_ao_insn_write()
168 	for (i = 0; i < insn->n; i++) {  in icp_multi_ao_insn_write()
172 		/* Wait for analog output to be ready for new data */  in icp_multi_ao_insn_write()
177 		writew(val, dev->mmio + ICP_MULTI_AO);  in icp_multi_ao_insn_write()
179 		/* Set start conversion bit to write data to channel */  in icp_multi_ao_insn_write()
181 		       dev->mmio + ICP_MULTI_DAC_CSR);  in icp_multi_ao_insn_write()
183 		s->readback[chan] = val;  in icp_multi_ao_insn_write()
186 	return insn->n;  in icp_multi_ao_insn_write()
194 	data[1] = readw(dev->mmio + ICP_MULTI_DI);  in icp_multi_di_insn_bits()
196 	return insn->n;  in icp_multi_di_insn_bits()
205 		writew(s->state, dev->mmio + ICP_MULTI_DO);  in icp_multi_do_insn_bits()
207 	data[1] = s->state;  in icp_multi_do_insn_bits()
209 	return insn->n;  in icp_multi_do_insn_bits()
217 	writew(0, dev->mmio + ICP_MULTI_INT_EN);  in icp_multi_reset()
218 	writew(ICP_MULTI_INT_MASK, dev->mmio + ICP_MULTI_INT_STAT);  in icp_multi_reset()
220 	/* Reset the analog output channels to 0V */  in icp_multi_reset()
225 		writew(dac_csr, dev->mmio + ICP_MULTI_DAC_CSR);  in icp_multi_reset()
228 		writew(0, dev->mmio + ICP_MULTI_AO);  in icp_multi_reset()
230 		/* Set start conversion bit to write data to channel */  in icp_multi_reset()
232 		       dev->mmio + ICP_MULTI_DAC_CSR);  in icp_multi_reset()
236 	/* Digital outputs to 0 */  in icp_multi_reset()
237 	writew(0, dev->mmio + ICP_MULTI_DO);  in icp_multi_reset()
253 	dev->mmio = pci_ioremap_bar(pcidev, 2);  in icp_multi_auto_attach()
254 	if (!dev->mmio)  in icp_multi_auto_attach()
255 		return -ENOMEM;  in icp_multi_auto_attach()
263 	/* Analog Input subdevice */  in icp_multi_auto_attach()
264 	s = &dev->subdevices[0];  in icp_multi_auto_attach()
265 	s->type		= COMEDI_SUBD_AI;  in icp_multi_auto_attach()
266 	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;  in icp_multi_auto_attach()
267 	s->n_chan	= 16;  in icp_multi_auto_attach()
268 	s->maxdata	= 0x0fff;  in icp_multi_auto_attach()
269 	s->range_table	= &icp_multi_ranges;  in icp_multi_auto_attach()
270 	s->insn_read	= icp_multi_ai_insn_read;  in icp_multi_auto_attach()
272 	/* Analog Output subdevice */  in icp_multi_auto_attach()
273 	s = &dev->subdevices[1];  in icp_multi_auto_attach()
274 	s->type		= COMEDI_SUBD_AO;  in icp_multi_auto_attach()
275 	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;  in icp_multi_auto_attach()
276 	s->n_chan	= 4;  in icp_multi_auto_attach()
277 	s->maxdata	= 0x0fff;  in icp_multi_auto_attach()
278 	s->range_table	= &icp_multi_ranges;  in icp_multi_auto_attach()
279 	s->insn_write	= icp_multi_ao_insn_write;  in icp_multi_auto_attach()
285 	/* Digital Input subdevice */  in icp_multi_auto_attach()
286 	s = &dev->subdevices[2];  in icp_multi_auto_attach()
287 	s->type		= COMEDI_SUBD_DI;  in icp_multi_auto_attach()
288 	s->subdev_flags	= SDF_READABLE;  in icp_multi_auto_attach()
289 	s->n_chan	= 16;  in icp_multi_auto_attach()
290 	s->maxdata	= 1;  in icp_multi_auto_attach()
291 	s->range_table	= &range_digital;  in icp_multi_auto_attach()
292 	s->insn_bits	= icp_multi_di_insn_bits;  in icp_multi_auto_attach()
294 	/* Digital Output subdevice */  in icp_multi_auto_attach()
295 	s = &dev->subdevices[3];  in icp_multi_auto_attach()
296 	s->type		= COMEDI_SUBD_DO;  in icp_multi_auto_attach()
297 	s->subdev_flags	= SDF_WRITABLE;  in icp_multi_auto_attach()
298 	s->n_chan	= 8;  in icp_multi_auto_attach()
299 	s->maxdata	= 1;  in icp_multi_auto_attach()
300 	s->range_table	= &range_digital;  in icp_multi_auto_attach()
301 	s->insn_bits	= icp_multi_do_insn_bits;  in icp_multi_auto_attach()
316 	return comedi_pci_auto_config(dev, &icp_multi_driver, id->driver_data);  in icp_multi_pci_probe()