staging: comedi: move out of staging directory

The comedi code came into the kernel back in 2008, but traces its
lifetime to much much earlier.  It's been polished and buffed and
there's really nothing preventing it from being part of the "real"
portion of the kernel.

So move it to drivers/comedi/ as it belongs there.

Many thanks to the hundreds of developers who did the work to make this
happen.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Link: https://lore.kernel.org/r/YHauop4u3sP6lz8j@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 217 deletions

diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
deleted file mode 100644
index 5906f32aa01f..000000000000
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ /dev/null
@@ -1,217 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * comedi/drivers/dt2815.c
- * Hardware driver for Data Translation DT2815
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
- */
-/*
- * Driver: dt2815
- * Description: Data Translation DT2815
- * Author: ds
- * Status: mostly complete, untested
- * Devices: [Data Translation] DT2815 (dt2815)
- *
- * I'm not sure anyone has ever tested this board.  If you have information
- * contrary, please update.
- *
- * Configuration options:
- * [0] - I/O port base base address
- * [1] - IRQ (unused)
- * [2] - Voltage unipolar/bipolar configuration
- *	0 == unipolar 5V  (0V -- +5V)
- *	1 == bipolar 5V  (-5V -- +5V)
- * [3] - Current offset configuration
- *	0 == disabled  (0mA -- +32mAV)
- *	1 == enabled  (+4mA -- +20mAV)
- * [4] - Firmware program configuration
- *	0 == program 1 (see manual table 5-4)
- *	1 == program 2 (see manual table 5-4)
- *	2 == program 3 (see manual table 5-4)
- *	3 == program 4 (see manual table 5-4)
- * [5] - Analog output 0 range configuration
- *	0 == voltage
- *	1 == current
- * [6] - Analog output 1 range configuration (same options)
- * [7] - Analog output 2 range configuration (same options)
- * [8] - Analog output 3 range configuration (same options)
- * [9] - Analog output 4 range configuration (same options)
- * [10] - Analog output 5 range configuration (same options)
- * [11] - Analog output 6 range configuration (same options)
- * [12] - Analog output 7 range configuration (same options)
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-
-#define DT2815_DATA 0
-#define DT2815_STATUS 1
-
-struct dt2815_private {
-	const struct comedi_lrange *range_type_list[8];
-	unsigned int ao_readback[8];
-};
-
-static int dt2815_ao_status(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DT2815_STATUS);
-	if (status == context)
-		return 0;
-	return -EBUSY;
-}
-
-static int dt2815_ao_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	struct dt2815_private *devpriv = dev->private;
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = devpriv->ao_readback[chan];
-
-	return i;
-}
-
-static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	struct dt2815_private *devpriv = dev->private;
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned int lo, hi;
-	int ret;
-
-	for (i = 0; i < insn->n; i++) {
-		/* FIXME: lo bit 0 chooses voltage output or current output */
-		lo = ((data[i] & 0x0f) << 4) | (chan << 1) | 0x01;
-		hi = (data[i] & 0xff0) >> 4;
-
-		ret = comedi_timeout(dev, s, insn, dt2815_ao_status, 0x00);
-		if (ret)
-			return ret;
-
-		outb(lo, dev->iobase + DT2815_DATA);
-
-		ret = comedi_timeout(dev, s, insn, dt2815_ao_status, 0x10);
-		if (ret)
-			return ret;
-
-		outb(hi, dev->iobase + DT2815_DATA);
-
-		devpriv->ao_readback[chan] = data[i];
-	}
-	return i;
-}
-
-/*
- * options[0]   Board base address
- * options[1]   IRQ (not applicable)
- * options[2]   Voltage unipolar/bipolar configuration
- *		0 == unipolar 5V  (0V -- +5V)
- *		1 == bipolar 5V  (-5V -- +5V)
- * options[3]   Current offset configuration
- *		0 == disabled  (0mA -- +32mAV)
- *		1 == enabled  (+4mA -- +20mAV)
- * options[4]   Firmware program configuration
- *		0 == program 1 (see manual table 5-4)
- *		1 == program 2 (see manual table 5-4)
- *		2 == program 3 (see manual table 5-4)
- *		3 == program 4 (see manual table 5-4)
- * options[5]   Analog output 0 range configuration
- *		0 == voltage
- *		1 == current
- * options[6]   Analog output 1 range configuration
- * ...
- * options[12]   Analog output 7 range configuration
- *		0 == voltage
- *		1 == current
- */
-
-static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct dt2815_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	const struct comedi_lrange *current_range_type, *voltage_range_type;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x2);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	s = &dev->subdevices[0];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->maxdata = 0xfff;
-	s->n_chan = 8;
-	s->insn_write = dt2815_ao_insn;
-	s->insn_read = dt2815_ao_insn_read;
-	s->range_table_list = devpriv->range_type_list;
-
-	current_range_type = (it->options[3])
-	    ? &range_4_20mA : &range_0_32mA;
-	voltage_range_type = (it->options[2])
-	    ? &range_bipolar5 : &range_unipolar5;
-	for (i = 0; i < 8; i++) {
-		devpriv->range_type_list[i] = (it->options[5 + i])
-		    ? current_range_type : voltage_range_type;
-	}
-
-	/* Init the 2815 */
-	outb(0x00, dev->iobase + DT2815_STATUS);
-	for (i = 0; i < 100; i++) {
-		/* This is incredibly slow (approx 20 ms) */
-		unsigned int status;
-
-		usleep_range(1000, 3000);
-		status = inb(dev->iobase + DT2815_STATUS);
-		if (status == 4) {
-			unsigned int program;
-
-			program = (it->options[4] & 0x3) << 3 | 0x7;
-			outb(program, dev->iobase + DT2815_DATA);
-			dev_dbg(dev->class_dev, "program: 0x%x (@t=%d)\n",
-				program, i);
-			break;
-		} else if (status != 0x00) {
-			dev_dbg(dev->class_dev,
-				"unexpected status 0x%x (@t=%d)\n",
-				status, i);
-			if (status & 0x60)
-				outb(0x00, dev->iobase + DT2815_STATUS);
-		}
-	}
-
-	return 0;
-}
-
-static struct comedi_driver dt2815_driver = {
-	.driver_name	= "dt2815",
-	.module		= THIS_MODULE,
-	.attach		= dt2815_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dt2815_driver);
-
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");