/* 0..3 remain unchanged! For details about Port C Mode Register see */
/* the remarks in dnp_insn_config() below. */
-#define CSCIR 0x22 /* Chip Setup and Control Index Register */
-#define CSCDR 0x23 /* Chip Setup and Control Data Register */
-#define PAMR 0xa5 /* Port A Mode Register */
-#define PADR 0xa9 /* Port A Data Register */
-#define PBMR 0xa4 /* Port B Mode Register */
-#define PBDR 0xa8 /* Port B Data Register */
-#define PCMR 0xa3 /* Port C Mode Register */
-#define PCDR 0xa7 /* Port C Data Register */
+#define CSCIR 0x22 /* Chip Setup and Control Index Register */
+#define CSCDR 0x23 /* Chip Setup and Control Data Register */
+#define PAMR 0xa5 /* Port A Mode Register */
+#define PADR 0xa9 /* Port A Data Register */
+#define PBMR 0xa4 /* Port B Mode Register */
+#define PBDR 0xa8 /* Port B Data Register */
+#define PCMR 0xa3 /* Port C Mode Register */
+#define PCDR 0xa7 /* Port C Data Register */
/* This data structure holds information about the supported boards -------- */
int have_dio;
};
-static const struct dnp_board dnp_boards[] = { /* we only support one DNP 'board' */
- { /* variant at the moment */
+/* 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,
#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. */
+/* 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. */
/* ------------------------------------------------------------------------- */
.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. */
+ .offset = sizeof(struct dnp_board), /* like ISA-PnP, PCI or PCMCIA */
.num_names = ARRAY_SIZE(dnp_boards),
};
struct comedi_subdevice *s;
- printk("comedi%d: dnp: ", dev->minor);
+ 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 :-) */
+ /* 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. */
+ /* 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. */
+ /* 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. */
+ /* 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 */
+ /* digital i/o subdevice */
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
s->n_chan = 20;
* allocated for the primary 8259, so we don't need to allocate them
* ourselves. */
- /* configure all ports as input (default) */
+ /* configure all ports as input (default) */
outb(PAMR, CSCIR);
outb(0x00, CSCDR);
outb(PBMR, CSCIR);
static int dnp_detach(struct comedi_device *dev)
{
- /* configure all ports as input (default) */
+ /* configure all ports as input (default) */
outb(PAMR, CSCIR);
outb(0x00, CSCDR);
outb(PBMR, CSCIR);
outb(PCMR, CSCIR);
outb((inb(CSCDR) & 0xAA), CSCDR);
- /* announce that we are finished */
- printk("comedi%d: dnp: remove\n", dev->minor);
+ /* announce that we are finished */
+ printk(KERN_INFO "comedi%d: dnp: remove\n", dev->minor);
return 0;
if (insn->n != 2)
return -EINVAL; /* insn uses data[0] and data[1] */
- /* The insn data is a mask in data[0] and the new data in data[1], each */
- /* channel cooresponding to a bit. */
+ /* The insn data is a mask in data[0] and the new data in data[1], */
+ /* each channel cooresponding to a bit. */
- /* Ports A and B are straight forward: each bit corresponds to an output */
- /* pin with the same order. Port C is different: bits 0...3 correspond to */
- /* bits 4...7 of the output register (PCDR). */
+ /* Ports A and B are straight forward: each bit corresponds to an */
+ /* output pin with the same order. Port C is different: bits 0...3 */
+ /* correspond to bits 4...7 of the output register (PCDR). */
if (data[0]) {
| (u8) ((data[1] & 0x0F0000) >> 12), CSCDR);
}
- /* on return, data[1] contains the value of the digital input lines. */
+ /* on return, data[1] contains the value of the digital input lines. */
outb(PADR, CSCIR);
data[0] = inb(CSCDR);
outb(PBDR, CSCIR);
u8 register_buffer;
- int chan = CR_CHAN(insn->chanspec); /* reduces chanspec to lower 16 bits */
+ /* reduces chanspec to lower 16 bits */
+ int chan = CR_CHAN(insn->chanspec);
switch (data[0]) {
case INSN_CONFIG_DIO_OUTPUT:
return -EINVAL;
break;
}
- /* Test: which port does the channel belong to? */
+ /* Test: which port does the channel belong to? */
- /* We have to pay attention with port C: this is the meaning of PCMR: */
- /* Bit in PCMR: 7 6 5 4 3 2 1 0 */
- /* Corresponding port C pin: d 3 d 2 d 1 d 0 d= don't touch */
+ /* We have to pay attention with port C: this is the meaning of PCMR: */
+ /* Bit in PCMR: 7 6 5 4 3 2 1 0 */
+ /* Corresponding port C pin: d 3 d 2 d 1 d 0 d= don't touch */
if ((chan >= 0) && (chan <= 7)) {
/* this is port A */
chan -= 8;
outb(PBMR, CSCIR);
} else if ((chan >= 16) && (chan <= 19)) {
- /* this is port C; multiplication with 2 brings bits into correct */
- /* position for PCMR! */
+ /* this is port C; multiplication with 2 brings bits into */
+ /* correct position for PCMR! */
chan -= 16;
chan *= 2;
outb(PCMR, CSCIR);
return -EINVAL;
}
- /* read 'old' direction of the port and set bits (out=1, in=0) */
+ /* read 'old' direction of the port and set bits (out=1, in=0) */
register_buffer = inb(CSCDR);
if (data[0] == COMEDI_OUTPUT)
register_buffer |= (1 << chan);
projects / linux-beck.git / commitdiff