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, 111 insertions, 0 deletions

diff --git a/drivers/comedi/drivers/amplc_pci263.c b/drivers/comedi/drivers/amplc_pci263.c
new file mode 100644
index 000000000000..9217973f1141
--- /dev/null
+++ b/drivers/comedi/drivers/amplc_pci263.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Amplicon PCI263 relay board.
+ *
+ * Copyright (C) 2002 MEV Ltd. <https://www.mev.co.uk/>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ */
+
+/*
+ * Driver: amplc_pci263
+ * Description: Amplicon PCI263
+ * Author: Ian Abbott <abbotti@mev.co.uk>
+ * Devices: [Amplicon] PCI263 (amplc_pci263)
+ * Updated: Fri, 12 Apr 2013 15:19:36 +0100
+ * Status: works
+ *
+ * Configuration options: not applicable, uses PCI auto config
+ *
+ * The board appears as one subdevice, with 16 digital outputs, each
+ * connected to a reed-relay. Relay contacts are closed when output is 1.
+ * The state of the outputs can be read.
+ */
+
+#include <linux/module.h>
+
+#include "../comedi_pci.h"
+
+/* PCI263 registers */
+#define PCI263_DO_0_7_REG	0x00
+#define PCI263_DO_8_15_REG	0x01
+
+static int pci263_do_insn_bits(struct comedi_device *dev,
+			       struct comedi_subdevice *s,
+			       struct comedi_insn *insn,
+			       unsigned int *data)
+{
+	if (comedi_dio_update_state(s, data)) {
+		outb(s->state & 0xff, dev->iobase + PCI263_DO_0_7_REG);
+		outb((s->state >> 8) & 0xff, dev->iobase + PCI263_DO_8_15_REG);
+	}
+
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int pci263_auto_attach(struct comedi_device *dev,
+			      unsigned long context_unused)
+{
+	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
+	struct comedi_subdevice *s;
+	int ret;
+
+	ret = comedi_pci_enable(dev);
+	if (ret)
+		return ret;
+
+	dev->iobase = pci_resource_start(pci_dev, 2);
+	ret = comedi_alloc_subdevices(dev, 1);
+	if (ret)
+		return ret;
+
+	/* Digital Output subdevice */
+	s = &dev->subdevices[0];
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci263_do_insn_bits;
+
+	/* read initial relay state */
+	s->state = inb(dev->iobase + PCI263_DO_0_7_REG) |
+		   (inb(dev->iobase + PCI263_DO_8_15_REG) << 8);
+
+	return 0;
+}
+
+static struct comedi_driver amplc_pci263_driver = {
+	.driver_name	= "amplc_pci263",
+	.module		= THIS_MODULE,
+	.auto_attach	= pci263_auto_attach,
+	.detach		= comedi_pci_detach,
+};
+
+static const struct pci_device_id pci263_pci_table[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, 0x000c) },
+	{0}
+};
+MODULE_DEVICE_TABLE(pci, pci263_pci_table);
+
+static int amplc_pci263_pci_probe(struct pci_dev *dev,
+				  const struct pci_device_id *id)
+{
+	return comedi_pci_auto_config(dev, &amplc_pci263_driver,
+				      id->driver_data);
+}
+
+static struct pci_driver amplc_pci263_pci_driver = {
+	.name		= "amplc_pci263",
+	.id_table	= pci263_pci_table,
+	.probe		= &amplc_pci263_pci_probe,
+	.remove		= comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(amplc_pci263_driver, amplc_pci263_pci_driver);
+
+MODULE_AUTHOR("Comedi https://www.comedi.org");
+MODULE_DESCRIPTION("Comedi driver for Amplicon PCI263 relay board");
+MODULE_LICENSE("GPL");