int have_dio;
};
-/* We only support one DNP 'board' variant at the moment */
-static const struct dnp_board dnp_boards[] = {
-{
- .name = "dnp-1486",
- .ai_chans = 16,
- .ai_bits = 12,
- .have_dio = 1,
- },
-};
-
/* Useful for shorthand access to the particular board structure ----------- */
#define thisboard ((const struct dnp_board *)dev->board_ptr)
/* Shorthand macro for faster access to the private data ------------------- */
#define devpriv ((dnp_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. */
-/* */
-/* In the following section we define the API of this driver. */
-/* ------------------------------------------------------------------------- */
-
-static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it);
-static int dnp_detach(struct comedi_device *dev);
-
-static struct comedi_driver driver_dnp = {
- .driver_name = "ssv_dnp",
- .module = THIS_MODULE,
- .attach = dnp_attach,
- .detach = dnp_detach,
- .board_name = &dnp_boards[0].name,
- /* only necessary for non-PnP devs */
- .offset = sizeof(struct dnp_board), /* like ISA-PnP, PCI or PCMCIA */
- .num_names = ARRAY_SIZE(dnp_boards),
-};
-
-static int __init driver_dnp_init_module(void)
-{
- return comedi_driver_register(&driver_dnp);
-}
-
-static void __exit driver_dnp_cleanup_module(void)
-{
- comedi_driver_unregister(&driver_dnp);
-}
-
-module_init(driver_dnp_init_module);
-module_exit(driver_dnp_cleanup_module);
-
-static int dnp_dio_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-
-static int dnp_dio_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data);
-
-/* ------------------------------------------------------------------------- */
-/* Attach is called by 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 dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-
- struct comedi_subdevice *s;
-
- printk(KERN_INFO "comedi%d: dnp: ", dev->minor);
-
- /* Autoprobing: this should find out which board we have. Currently */
- /* only the 1486 board is supported and autoprobing is not */
- /* implemented :-) */
- /* dev->board_ptr = dnp_probe(dev); */
-
- /* Initialize the name of the board. */
- /* We can use the "thisboard" macro now. */
- dev->board_name = thisboard->name;
-
- /* Allocate the private structure area. alloc_private() is a */
- /* convenient macro defined in comedidev.h. */
- if (alloc_private(dev, sizeof(struct dnp_private_data)) < 0)
- return -ENOMEM;
-
- /* 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;
- /* digital i/o subdevice */
- s->type = COMEDI_SUBD_DIO;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 20;
- s->maxdata = 1;
- s->range_table = &range_digital;
- s->insn_bits = dnp_dio_insn_bits;
- s->insn_config = dnp_dio_insn_config;
-
- printk("attached\n");
-
- /* We use the I/O ports 0x22,0x23 and 0xa3-0xa9, which are always
- * allocated for the primary 8259, so we don't need to allocate them
- * ourselves. */
-
- /* configure all ports as input (default) */
- outb(PAMR, CSCIR);
- outb(0x00, CSCDR);
- outb(PBMR, CSCIR);
- outb(0x00, CSCDR);
- outb(PCMR, CSCIR);
- outb((inb(CSCDR) & 0xAA), CSCDR);
-
- return 1;
-
-}
-
-/* ------------------------------------------------------------------------- */
-/* detach is called to deconfigure a device. It should deallocate the */
-/* 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 dnp_detach(struct comedi_device *dev)
-{
-
- /* configure all ports as input (default) */
- outb(PAMR, CSCIR);
- outb(0x00, CSCDR);
- outb(PBMR, CSCIR);
- outb(0x00, CSCDR);
- outb(PCMR, CSCIR);
- outb((inb(CSCDR) & 0xAA), CSCDR);
-
- /* announce that we are finished */
- printk(KERN_INFO "comedi%d: dnp: remove\n", dev->minor);
-
- return 0;
-
-}
-
/* ------------------------------------------------------------------------- */
/* The insn_bits interface allows packed reading/writing of DIO channels. */
/* The comedi core can convert between insn_bits and insn_read/write, so you */
}
+static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+{
+ struct comedi_subdevice *s;
+
+ printk(KERN_INFO "comedi%d: dnp: ", dev->minor);
+
+ /* Autoprobing: this should find out which board we have. Currently */
+ /* only the 1486 board is supported and autoprobing is not */
+ /* implemented :-) */
+ /* dev->board_ptr = dnp_probe(dev); */
+
+ /* Initialize the name of the board. */
+ /* We can use the "thisboard" macro now. */
+ dev->board_name = thisboard->name;
+
+ /* Allocate the private structure area. alloc_private() is a */
+ /* convenient macro defined in comedidev.h. */
+ if (alloc_private(dev, sizeof(struct dnp_private_data)) < 0)
+ return -ENOMEM;
+
+ /* 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;
+ /* digital i/o subdevice */
+ s->type = COMEDI_SUBD_DIO;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 20;
+ s->maxdata = 1;
+ s->range_table = &range_digital;
+ s->insn_bits = dnp_dio_insn_bits;
+ s->insn_config = dnp_dio_insn_config;
+
+ printk("attached\n");
+
+ /* We use the I/O ports 0x22,0x23 and 0xa3-0xa9, which are always
+ * allocated for the primary 8259, so we don't need to allocate them
+ * ourselves. */
+
+ /* configure all ports as input (default) */
+ outb(PAMR, CSCIR);
+ outb(0x00, CSCDR);
+ outb(PBMR, CSCIR);
+ outb(0x00, CSCDR);
+ outb(PCMR, CSCIR);
+ outb((inb(CSCDR) & 0xAA), CSCDR);
+
+ return 1;
+}
+
+static int dnp_detach(struct comedi_device *dev)
+{
+ /* configure all ports as input (default) */
+ outb(PAMR, CSCIR);
+ outb(0x00, CSCDR);
+ outb(PBMR, CSCIR);
+ outb(0x00, CSCDR);
+ outb(PCMR, CSCIR);
+ outb((inb(CSCDR) & 0xAA), CSCDR);
+
+ /* announce that we are finished */
+ printk(KERN_INFO "comedi%d: dnp: remove\n", dev->minor);
+
+ return 0;
+}
+
+static const struct dnp_board dnp_boards[] = {
+ {
+ .name = "dnp-1486",
+ .ai_chans = 16,
+ .ai_bits = 12,
+ .have_dio = 1,
+ },
+};
+
+static struct comedi_driver dnp_driver = {
+ .driver_name = "ssv_dnp",
+ .module = THIS_MODULE,
+ .attach = dnp_attach,
+ .detach = dnp_detach,
+ .board_name = &dnp_boards[0].name,
+ .offset = sizeof(struct dnp_board),
+ .num_names = ARRAY_SIZE(dnp_boards),
+};
+module_comedi_driver(dnp_driver);
+
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
projects / users / hch / dma-mapping.git / commitdiff