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Date: Thu, 16 Aug 2012 19:48:14 -0700
From: H Hartley Sweeten <hartleys@...ionengravers.com>
To: Linux Kernel <linux-kernel@...r.kernel.org>
CC: <devel@...verdev.osuosl.org>, <abbotti@....co.uk>,
<gregkh@...uxfoundation.org>
Subject: [PATCH 16/35] staging: comedi: cb_pcimdda: remove forward declarations
Move a couple of the functions in order to remove the need for
the forward declarations.
Also, remove the unnecessary comments.
Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/staging/comedi/drivers/cb_pcimdda.c | 241 +++++++++++-----------------
1 file changed, 94 insertions(+), 147 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
index 04b9995..75e803a 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdda.c
@@ -149,141 +149,12 @@ struct board_private_struct {
};
-static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-
-/*---------------------------------------------------------------------------
- HELPER FUNCTION DECLARATIONS
------------------------------------------------------------------------------*/
-
/* returns a maxdata value for a given n_bits */
static inline unsigned int figure_out_maxdata(int bits)
{
return ((unsigned int)1 << bits) - 1;
}
-/*
- * Probes for a supported device.
- *
- * Prerequisite: private be allocated already inside dev
- *
- * If the device is found, it returns 0 and has the following side effects:
- *
- * o assigns a struct pci_dev * to dev->private->pci_dev
- * o assigns a struct board * to dev->board_ptr
- * o sets dev->private->registers
- * o sets dev->private->dio_registers
- *
- * Otherwise, returns a -errno on error
- */
-static int probe(struct comedi_device *dev, const struct comedi_devconfig *it);
-
-/*---------------------------------------------------------------------------
- FUNCTION DEFINITIONS
------------------------------------------------------------------------------*/
-
-/*
- * Attach is called by the Comedi core to configure the driver
- * for a particular board. If you specified a board_name array
- * in the driver structure, dev->board_ptr contains that
- * address.
- */
-static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
- const struct board_struct *thisboard;
- struct board_private_struct *devpriv;
- struct comedi_subdevice *s;
- int err;
-
- err = alloc_private(dev, sizeof(*devpriv));
- if (err)
- return err;
- devpriv = dev->private;
-
-/*
- * If you can probe the device to determine what device in a series
- * it is, this is the place to do it. Otherwise, dev->board_ptr
- * should already be initialized.
- */
- err = probe(dev, it);
- if (err)
- return err;
- thisboard = comedi_board(dev);
-
-/* Output some info */
- printk("comedi%d: %s: ", dev->minor, thisboard->name);
-
-/*
- * Initialize dev->board_name. Note that we can use the "thisboard"
- * macro now, since we just initialized it in the last line.
- */
- dev->board_name = thisboard->name;
-
- err = comedi_alloc_subdevices(dev, 2);
- if (err)
- return err;
-
- s = dev->subdevices + 0;
-
- /* analog output subdevice */
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
- s->n_chan = thisboard->ao_chans;
- s->maxdata = figure_out_maxdata(thisboard->ao_bits);
- /* this is hard-coded here */
- if (it->options[2])
- s->range_table = &range_bipolar10;
- else
- s->range_table = &range_bipolar5;
- s->insn_write = &ao_winsn;
- s->insn_read = &ao_rinsn;
-
- s = dev->subdevices + 1;
- /* digital i/o subdevice */
- if (thisboard->dio_chans) {
- switch (thisboard->dio_method) {
- case DIO_8255:
- /*
- * this is a straight 8255, so register us with
- * the 8255 driver
- */
- subdev_8255_init(dev, s, NULL, devpriv->dio_registers);
- devpriv->attached_to_8255 = 1;
- break;
- case DIO_INTERNAL:
- default:
- printk("DIO_INTERNAL not implemented yet!\n");
- return -ENXIO;
- break;
- }
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- printk("attached\n");
-
- return 1;
-}
-
-static void detach(struct comedi_device *dev)
-{
- struct board_private_struct *devpriv = dev->private;
-
- if (devpriv) {
- if (dev->subdevices && devpriv->attached_to_8255) {
- subdev_8255_cleanup(dev, dev->subdevices + 2);
- devpriv->attached_to_8255 = 0;
- }
- if (devpriv->pci_dev) {
- if (devpriv->registers)
- comedi_pci_disable(devpriv->pci_dev);
- pci_dev_put(devpriv->pci_dev);
- }
- }
-}
-
static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
@@ -344,24 +215,6 @@ static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
return i;
}
-/*---------------------------------------------------------------------------
- HELPER FUNCTION DEFINITIONS
------------------------------------------------------------------------------*/
-
-/*
- * Probes for a supported device.
- *
- * Prerequisite: private be allocated already inside dev
- *
- * If the device is found, it returns 0 and has the following side effects:
- *
- * o assigns a struct pci_dev * to dev->private->pci_dev
- * o assigns a struct board * to dev->board_ptr
- * o sets dev->private->registers
- * o sets dev->private->dio_registers
- *
- * Otherwise, returns a -errno on error
- */
static int probe(struct comedi_device *dev, const struct comedi_devconfig *it)
{
const struct board_struct *thisboard;
@@ -411,6 +264,100 @@ static int probe(struct comedi_device *dev, const struct comedi_devconfig *it)
return -ENODEV;
}
+static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
+{
+ const struct board_struct *thisboard;
+ struct board_private_struct *devpriv;
+ struct comedi_subdevice *s;
+ int err;
+
+ err = alloc_private(dev, sizeof(*devpriv));
+ if (err)
+ return err;
+ devpriv = dev->private;
+
+/*
+ * If you can probe the device to determine what device in a series
+ * it is, this is the place to do it. Otherwise, dev->board_ptr
+ * should already be initialized.
+ */
+ err = probe(dev, it);
+ if (err)
+ return err;
+ thisboard = comedi_board(dev);
+
+/* Output some info */
+ printk("comedi%d: %s: ", dev->minor, thisboard->name);
+
+/*
+ * Initialize dev->board_name. Note that we can use the "thisboard"
+ * macro now, since we just initialized it in the last line.
+ */
+ dev->board_name = thisboard->name;
+
+ err = comedi_alloc_subdevices(dev, 2);
+ if (err)
+ return err;
+
+ s = dev->subdevices + 0;
+
+ /* analog output subdevice */
+ s->type = COMEDI_SUBD_AO;
+ s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
+ s->n_chan = thisboard->ao_chans;
+ s->maxdata = figure_out_maxdata(thisboard->ao_bits);
+ /* this is hard-coded here */
+ if (it->options[2])
+ s->range_table = &range_bipolar10;
+ else
+ s->range_table = &range_bipolar5;
+ s->insn_write = &ao_winsn;
+ s->insn_read = &ao_rinsn;
+
+ s = dev->subdevices + 1;
+ /* digital i/o subdevice */
+ if (thisboard->dio_chans) {
+ switch (thisboard->dio_method) {
+ case DIO_8255:
+ /*
+ * this is a straight 8255, so register us with
+ * the 8255 driver
+ */
+ subdev_8255_init(dev, s, NULL, devpriv->dio_registers);
+ devpriv->attached_to_8255 = 1;
+ break;
+ case DIO_INTERNAL:
+ default:
+ printk("DIO_INTERNAL not implemented yet!\n");
+ return -ENXIO;
+ break;
+ }
+ } else {
+ s->type = COMEDI_SUBD_UNUSED;
+ }
+
+ printk("attached\n");
+
+ return 1;
+}
+
+static void detach(struct comedi_device *dev)
+{
+ struct board_private_struct *devpriv = dev->private;
+
+ if (devpriv) {
+ if (dev->subdevices && devpriv->attached_to_8255) {
+ subdev_8255_cleanup(dev, dev->subdevices + 2);
+ devpriv->attached_to_8255 = 0;
+ }
+ if (devpriv->pci_dev) {
+ if (devpriv->registers)
+ comedi_pci_disable(devpriv->pci_dev);
+ pci_dev_put(devpriv->pci_dev);
+ }
+ }
+}
+
static struct comedi_driver cb_pcimdda_driver = {
.driver_name = "cb_pcimdda",
.module = THIS_MODULE,
--
1.7.11
--
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