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-rw-r--r--drivers/staging/comedi/drivers/comedi_bond.c213
1 files changed, 73 insertions, 140 deletions
diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c
index d8aefb23d6b9..4507bab1f14c 100644
--- a/drivers/staging/comedi/drivers/comedi_bond.c
+++ b/drivers/staging/comedi/drivers/comedi_bond.c
@@ -60,7 +60,6 @@ Configuration Options:
#define MAX_CHANS 256
#define MODULE_NAME "comedi_bond"
-MODULE_LICENSE("GPL");
#ifndef STR
# define STR1(x) #x
# define STR(x) STR1(x)
@@ -79,10 +78,6 @@ MODULE_PARM_DESC(debug, "If true, print extra cryptic debugging output useful"
} while (0)
#define WARNING(x...) printk(KERN_WARNING MODULE_NAME ": WARNING: "x)
#define ERROR(x...) printk(KERN_ERR MODULE_NAME ": INTERNAL ERROR: "x)
-MODULE_AUTHOR("Calin A. Culianu");
-MODULE_DESCRIPTION(MODULE_NAME "A driver for COMEDI to bond multiple COMEDI "
- "devices together as one. In the words of John Lennon: "
- "'And the world will live as one...'");
/*
* Board descriptions for two imaginary boards. Describing the
@@ -93,12 +88,6 @@ struct BondingBoard {
const char *name;
};
-static const struct BondingBoard bondingBoards[] = {
- {
- .name = MODULE_NAME,
- },
-};
-
/*
* Useful for shorthand access to the particular board structure
*/
@@ -133,129 +122,6 @@ struct Private {
*/
#define devpriv ((struct Private *)dev->private)
-/*
- * The struct comedi_driver structure tells the Comedi core module
- * which functions to call to configure/deconfigure (attach/detach)
- * the board, and also about the kernel module that contains
- * the device code.
- */
-static int bonding_attach(struct comedi_device *dev,
- struct comedi_devconfig *it);
-static int bonding_detach(struct comedi_device *dev);
-/** Build Private array of all devices.. */
-static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it);
-static void doDevUnconfig(struct comedi_device *dev);
-/* Ugly implementation of realloc that always copies memory around -- I'm lazy,
- * what can I say? I like to do wasteful memcopies.. :) */
-static void *Realloc(const void *ptr, size_t len, size_t old_len);
-
-static struct comedi_driver driver_bonding = {
- .driver_name = MODULE_NAME,
- .module = THIS_MODULE,
- .attach = bonding_attach,
- .detach = bonding_detach,
- /* It is not necessary to implement the following members if you are
- * writing a driver for a ISA PnP or PCI card */
- /* Most drivers will support multiple types of boards by
- * having an array of board structures. These were defined
- * in skel_boards[] above. Note that the element 'name'
- * was first in the structure -- Comedi uses this fact to
- * extract the name of the board without knowing any details
- * about the structure except for its length.
- * When a device is attached (by comedi_config), the name
- * of the device is given to Comedi, and Comedi tries to
- * match it by going through the list of board names. If
- * there is a match, the address of the pointer is put
- * into dev->board_ptr and driver->attach() is called.
- *
- * Note that these are not necessary if you can determine
- * the type of board in software. ISA PnP, PCI, and PCMCIA
- * devices are such boards.
- */
- .board_name = &bondingBoards[0].name,
- .offset = sizeof(struct BondingBoard),
- .num_names = ARRAY_SIZE(bondingBoards),
-};
-
-static int bonding_dio_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-static int bonding_dio_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data);
-
-/*
- * 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 bonding_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- struct comedi_subdevice *s;
-
- LOG_MSG("comedi%d\n", dev->minor);
-
- /*
- * Allocate the private structure area. alloc_private() is a
- * convenient macro defined in comedidev.h.
- */
- if (alloc_private(dev, sizeof(struct Private)) < 0)
- return -ENOMEM;
-
- /*
- * Setup our bonding from config params.. sets up our Private struct..
- */
- if (!doDevConfig(dev, it))
- return -EINVAL;
-
- /*
- * 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 = devpriv->name;
-
- /*
- * Allocate the subdevice structures. alloc_subdevice() is a
- * convenient macro defined in comedidev.h.
- */
- if (alloc_subdevices(dev, 1) < 0)
- return -ENOMEM;
-
- s = dev->subdevices + 0;
- s->type = COMEDI_SUBD_DIO;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = devpriv->nchans;
- s->maxdata = 1;
- s->range_table = &range_digital;
- s->insn_bits = bonding_dio_insn_bits;
- s->insn_config = bonding_dio_insn_config;
-
- LOG_MSG("attached with %u DIO channels coming from %u different "
- "subdevices all bonded together. "
- "John Lennon would be proud!\n",
- devpriv->nchans, devpriv->ndevs);
-
- return 1;
-}
-
-/*
- * _detach is called to deconfigure a device. It should deallocate
- * resources.
- * This function is also called when _attach() fails, so it should be
- * careful not to release resources that were not necessarily
- * allocated by _attach(). dev->private and dev->subdevices are
- * deallocated automatically by the core.
- */
-static int bonding_detach(struct comedi_device *dev)
-{
- LOG_MSG("comedi%d: remove\n", dev->minor);
- doDevUnconfig(dev);
- return 0;
-}
-
/* DIO devices are slightly special. Although it is possible to
* implement the insn_read/insn_write interface, it is much more
* useful to applications if you implement the insn_bits interface.
@@ -490,15 +356,82 @@ static void doDevUnconfig(struct comedi_device *dev)
}
}
-static int __init init(void)
+static int bonding_attach(struct comedi_device *dev,
+ struct comedi_devconfig *it)
{
- return comedi_driver_register(&driver_bonding);
+ struct comedi_subdevice *s;
+
+ LOG_MSG("comedi%d\n", dev->minor);
+
+ /*
+ * Allocate the private structure area. alloc_private() is a
+ * convenient macro defined in comedidev.h.
+ */
+ if (alloc_private(dev, sizeof(struct Private)) < 0)
+ return -ENOMEM;
+
+ /*
+ * Setup our bonding from config params.. sets up our Private struct..
+ */
+ if (!doDevConfig(dev, it))
+ return -EINVAL;
+
+ /*
+ * 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 = devpriv->name;
+
+ /*
+ * Allocate the subdevice structures. alloc_subdevice() is a
+ * convenient macro defined in comedidev.h.
+ */
+ if (alloc_subdevices(dev, 1) < 0)
+ return -ENOMEM;
+
+ s = dev->subdevices + 0;
+ s->type = COMEDI_SUBD_DIO;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = devpriv->nchans;
+ s->maxdata = 1;
+ s->range_table = &range_digital;
+ s->insn_bits = bonding_dio_insn_bits;
+ s->insn_config = bonding_dio_insn_config;
+
+ LOG_MSG("attached with %u DIO channels coming from %u different "
+ "subdevices all bonded together. "
+ "John Lennon would be proud!\n",
+ devpriv->nchans, devpriv->ndevs);
+
+ return 1;
}
-static void __exit cleanup(void)
+static int bonding_detach(struct comedi_device *dev)
{
- comedi_driver_unregister(&driver_bonding);
+ LOG_MSG("comedi%d: remove\n", dev->minor);
+ doDevUnconfig(dev);
+ return 0;
}
-module_init(init);
-module_exit(cleanup);
+static const struct BondingBoard bondingBoards[] = {
+ {
+ .name = "comedi_bond",
+ },
+};
+
+static struct comedi_driver bonding_driver = {
+ .driver_name = "comedi_bond",
+ .module = THIS_MODULE,
+ .attach = bonding_attach,
+ .detach = bonding_detach,
+ .board_name = &bondingBoards[0].name,
+ .offset = sizeof(struct BondingBoard),
+ .num_names = ARRAY_SIZE(bondingBoards),
+};
+module_comedi_driver(bonding_driver);
+
+MODULE_AUTHOR("Calin A. Culianu");
+MODULE_DESCRIPTION(MODULE_NAME "A driver for COMEDI to bond multiple COMEDI "
+ "devices together as one. In the words of John Lennon: "
+ "'And the world will live as one...'");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-03 21:14:58 +0100