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Date: Fri, 27 Apr 2012 16:13:37 -0700
From: H Hartley Sweeten <hartleys@...ionengravers.com>
To: Linux Kernel <linux-kernel@...r.kernel.org>
CC: <devel@...verdev.osuosl.org>, <abbotti@....co.uk>,
<fmhess@...rs.sourceforge.net>, <gregkh@...uxfoundation.org>
Subject: [PATCH] staging: comedi: refactor pcl816 driver to remove forward declarations
Move the module_init/module_exit routines and the associated
struct comedi_driver and other variables to the end of the source.
This is more typical of how other drivers are written and removes
the need for the forward declarations.
Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Ian Abbott <abbotti@....co.uk>
Cc: Mori Hess <fmhess@...rs.sourceforge.net>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
There are still some forward declarations in this file but fixing them
in this patch makes in to messy for review.
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index bf7b262..bccbb23 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -125,62 +125,14 @@ struct pcl816_board {
int i8254_osc_base; /* 1/frequency of on board oscilator in ns */
};
-static const struct pcl816_board boardtypes[] = {
- {"pcl816", 8, 16, 10000, 1, 16, 16, &range_pcl816,
- &range_pcl816, PCLx1x_RANGE,
- 0x00fc, /* IRQ mask */
- 0x0a, /* DMA mask */
- 0xffff, /* 16-bit card */
- 0xffff, /* D/A maxdata */
- 1024,
- 1, /* ao chan list */
- 100},
- {"pcl814b", 8, 16, 10000, 1, 16, 16, &range_pcl816,
- &range_pcl816, PCLx1x_RANGE,
- 0x00fc,
- 0x0a,
- 0x3fff, /* 14 bit card */
- 0x3fff,
- 1024,
- 1,
- 100},
-};
-
#define devpriv ((struct pcl816_private *)dev->private)
#define this_board ((const struct pcl816_board *)dev->board_ptr)
-static int pcl816_attach(struct comedi_device *dev,
- struct comedi_devconfig *it);
-static int pcl816_detach(struct comedi_device *dev);
-
#ifdef unused
static int RTC_lock; /* RTC lock */
static int RTC_timer_lock; /* RTC int lock */
#endif
-static struct comedi_driver driver_pcl816 = {
- .driver_name = "pcl816",
- .module = THIS_MODULE,
- .attach = pcl816_attach,
- .detach = pcl816_detach,
- .board_name = &boardtypes[0].name,
- .num_names = ARRAY_SIZE(boardtypes),
- .offset = sizeof(struct pcl816_board),
-};
-
-static int __init driver_pcl816_init_module(void)
-{
- return comedi_driver_register(&driver_pcl816);
-}
-
-static void __exit driver_pcl816_cleanup_module(void)
-{
- comedi_driver_unregister(&driver_pcl816);
-}
-
-module_init(driver_pcl816_init_module);
-module_exit(driver_pcl816_cleanup_module);
-
struct pcl816_private {
unsigned int dma; /* used DMA, 0=don't use DMA */
@@ -1108,12 +1060,6 @@ static void free_resources(struct comedi_device *dev)
/* printk("free_resource() end\n"); */
}
-/*
-==============================================================================
-
- Initialization
-
-*/
static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
int ret;
@@ -1339,10 +1285,6 @@ case COMEDI_SUBD_DO:
return 0;
}
-/*
-==============================================================================
- Removes device
- */
static int pcl816_detach(struct comedi_device *dev)
{
DEBUG(printk(KERN_INFO "comedi%d: pcl816: remove\n", dev->minor);)
@@ -1354,6 +1296,49 @@ static int pcl816_detach(struct comedi_device *dev)
return 0;
}
+static const struct pcl816_board boardtypes[] = {
+ {"pcl816", 8, 16, 10000, 1, 16, 16, &range_pcl816,
+ &range_pcl816, PCLx1x_RANGE,
+ 0x00fc, /* IRQ mask */
+ 0x0a, /* DMA mask */
+ 0xffff, /* 16-bit card */
+ 0xffff, /* D/A maxdata */
+ 1024,
+ 1, /* ao chan list */
+ 100},
+ {"pcl814b", 8, 16, 10000, 1, 16, 16, &range_pcl816,
+ &range_pcl816, PCLx1x_RANGE,
+ 0x00fc,
+ 0x0a,
+ 0x3fff, /* 14 bit card */
+ 0x3fff,
+ 1024,
+ 1,
+ 100},
+};
+
+static struct comedi_driver driver_pcl816 = {
+ .driver_name = "pcl816",
+ .module = THIS_MODULE,
+ .attach = pcl816_attach,
+ .detach = pcl816_detach,
+ .board_name = &boardtypes[0].name,
+ .num_names = ARRAY_SIZE(boardtypes),
+ .offset = sizeof(struct pcl816_board),
+};
+
+static int __init driver_pcl816_init_module(void)
+{
+ return comedi_driver_register(&driver_pcl816);
+}
+module_init(driver_pcl816_init_module);
+
+static void __exit driver_pcl816_cleanup_module(void)
+{
+ comedi_driver_unregister(&driver_pcl816);
+}
+module_exit(driver_pcl816_cleanup_module);
+
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
--
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