staging: comedi: pcmmio: remove boardinfo

This driver only supports a single "boardtype". Remove the unneeded
boardinfo struct and its use in the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcmmio.c

@@ -145,35 +145,6 @@ Configuration Options:
 #define PAGE_ENAB 2
 #define PAGE_INT_ID 3
 
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
-struct pcmmio_board {
-	const char *name;
-	const int dio_num_asics;
-	const int dio_num_ports;
-	const int total_iosize;
-	const int ai_bits;
-	const int ao_bits;
-	const int n_ai_chans;
-	const int n_ao_chans;
-	const struct comedi_lrange *ai_range_table, *ao_range_table;
-	int (*ai_rinsn) (struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned int *data);
-	int (*ao_rinsn) (struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned int *data);
-	int (*ao_winsn) (struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned int *data);
-};
-
 static const struct comedi_lrange ranges_ai = {
 	4, {RANGE(-5., 5.), RANGE(-10., 10.), RANGE(0., 5.), RANGE(0., 10.)}
 };
@@ -416,9 +387,7 @@ static int pcmmio_dio_insn_config(struct comedi_device *dev,
 
 static void switch_page(struct comedi_device *dev, int asic, int page)
 {
-	const struct pcmmio_board *board = comedi_board(dev);
-
-	if (asic < 0 || asic >= board->dio_num_asics)
+	if (asic < 0 || asic >= 1)
 		return;		/* paranoia */
 	if (page < 0 || page >= NUM_PAGES)
 		return;		/* more paranoia */
@@ -434,10 +403,9 @@ static void switch_page(struct comedi_device *dev, int asic, int page)
 static void init_asics(struct comedi_device *dev)
 {				/* sets up an
 				   ASIC chip to defaults */
-	const struct pcmmio_board *board = comedi_board(dev);
 	int asic;
 
-	for (asic = 0; asic < board->dio_num_asics; ++asic) {
+	for (asic = 0; asic < 1; ++asic) {
 		int port, page;
 		unsigned long baseaddr = devpriv->asics[asic].iobase;
 
@@ -472,9 +440,7 @@ static void init_asics(struct comedi_device *dev)
 #ifdef notused
 static void lock_port(struct comedi_device *dev, int asic, int port)
 {
-	const struct pcmmio_board *board = comedi_board(dev);
-
-	if (asic < 0 || asic >= board->dio_num_asics)
+	if (asic < 0 || asic >= 1)
 		return;		/* paranoia */
 	if (port < 0 || port >= PORTS_PER_ASIC)
 		return;		/* more paranoia */
@@ -488,9 +454,7 @@ static void lock_port(struct comedi_device *dev, int asic, int port)
 
 static void unlock_port(struct comedi_device *dev, int asic, int port)
 {
-	const struct pcmmio_board *board = comedi_board(dev);
-
-	if (asic < 0 || asic >= board->dio_num_asics)
+	if (asic < 0 || asic >= 1)
 		return;		/* paranoia */
 	if (port < 0 || port >= PORTS_PER_ASIC)
 		return;		/* more paranoia */
@@ -1012,7 +976,6 @@ static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
-	const struct pcmmio_board *board = comedi_board(dev);
 	struct comedi_subdevice *s;
 	int sdev_no, chans_left, n_dio_subdevs, n_subdevs, port, asic,
 	    thisasic_chanct = 0;
@@ -1020,23 +983,21 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned int irq[MAX_ASICS];
 	int ret;
 
+	dev->board_name = dev->driver->driver_name;
+
 	iobase = it->options[0];
 	irq[0] = it->options[1];
 
 	printk(KERN_INFO "comedi%d: %s: io: %lx attaching...\n", dev->minor,
-			dev->driver->driver_name, iobase);
+			dev->board_name, iobase);
 
 	dev->iobase = iobase;
 
-	if (!iobase || !request_region(iobase,
-				       board->total_iosize,
-				       dev->driver->driver_name)) {
+	if (!iobase || !request_region(iobase, 32, dev->board_name)) {
 		printk(KERN_ERR "comedi%d: I/O port conflict\n", dev->minor);
 		return -EIO;
 	}
 
-	dev->board_name = board->name;
-
 /*
  * Allocate the private structure area.  alloc_private() is a
  * convenient macro defined in comedidev.h.
@@ -1059,7 +1020,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		spin_lock_init(&devpriv->asics[asic].spinlock);
 	}
 
-	chans_left = CHANS_PER_ASIC * board->dio_num_asics;
+	chans_left = CHANS_PER_ASIC * 1;
 	n_dio_subdevs = CALC_N_DIO_SUBDEVS(chans_left);
 	n_subdevs = n_dio_subdevs + 2;
 	devpriv->sprivs =
@@ -1078,13 +1039,13 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* First, AI */
 	s = &dev->subdevices[0];
 	s->private = &devpriv->sprivs[0];
-	s->maxdata = (1 << board->ai_bits) - 1;
-	s->range_table = board->ai_range_table;
+	s->maxdata = 0xffff;
+	s->range_table = &ranges_ai;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
 	s->type = COMEDI_SUBD_AI;
-	s->n_chan = board->n_ai_chans;
+	s->n_chan = 16;
 	s->len_chanlist = s->n_chan;
-	s->insn_read = board->ai_rinsn;
+	s->insn_read = ai_rinsn;
 	subpriv->iobase = dev->iobase + 0;
 	/* initialize the resource enable register by clearing it */
 	outb(0, subpriv->iobase + 3);
@@ -1093,14 +1054,14 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* Next, AO */
 	s = &dev->subdevices[1];
 	s->private = &devpriv->sprivs[1];
-	s->maxdata = (1 << board->ao_bits) - 1;
-	s->range_table = board->ao_range_table;
+	s->maxdata = 0xffff;
+	s->range_table = &ranges_ao;
 	s->subdev_flags = SDF_READABLE;
 	s->type = COMEDI_SUBD_AO;
-	s->n_chan = board->n_ao_chans;
+	s->n_chan = 8;
 	s->len_chanlist = s->n_chan;
-	s->insn_read = board->ao_rinsn;
-	s->insn_write = board->ao_winsn;
+	s->insn_read = ao_rinsn;
+	s->insn_write = ao_winsn;
 	subpriv->iobase = dev->iobase + 8;
 	/* initialize the resource enable register by clearing it */
 	outb(0, subpriv->iobase + 3);
@@ -1180,7 +1141,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) {
 		if (irq[asic]
 		    && request_irq(irq[asic], interrupt_pcmmio,
-				   IRQF_SHARED, board->name, dev)) {
+				   IRQF_SHARED, dev->board_name, dev)) {
 			int i;
 			/* unroll the allocated irqs.. */
 			for (i = asic - 1; i >= 0; --i) {
@@ -1204,11 +1165,10 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void pcmmio_detach(struct comedi_device *dev)
 {
-	const struct pcmmio_board *board = comedi_board(dev);
 	int i;
 
 	if (dev->iobase)
-		release_region(dev->iobase, board->total_iosize);
+		release_region(dev->iobase, 32);
 	for (i = 0; i < MAX_ASICS; ++i) {
 		if (devpriv && devpriv->asics[i].irq)
 			free_irq(devpriv->asics[i].irq, dev);
@@ -1217,32 +1177,11 @@ static void pcmmio_detach(struct comedi_device *dev)
 		kfree(devpriv->sprivs);
 }
 
-static const struct pcmmio_board pcmmio_boards[] = {
-	{
-		.name		= "pcmmio",
-		.dio_num_asics	= 1,
-		.dio_num_ports	= 6,
-		.total_iosize	= 32,
-		.ai_bits	= 16,
-		.ao_bits	= 16,
-		.n_ai_chans	= 16,
-		.n_ao_chans	= 8,
-		.ai_range_table	= &ranges_ai,
-		.ao_range_table	= &ranges_ao,
-		.ai_rinsn	= ai_rinsn,
-		.ao_rinsn	= ao_rinsn,
-		.ao_winsn	= ao_winsn
-	},
-};
-
 static struct comedi_driver pcmmio_driver = {
 	.driver_name	= "pcmmio",
 	.module		= THIS_MODULE,
 	.attach		= pcmmio_attach,
 	.detach		= pcmmio_detach,
-	.board_name	= &pcmmio_boards[0].name,
-	.offset		= sizeof(struct pcmmio_board),
-	.num_names	= ARRAY_SIZE(pcmmio_boards),
 };
 module_comedi_driver(pcmmio_driver);