X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fstaging%2Fcomedi%2Fdrivers%2Fssv_dnp.c;h=18b0a83c4bbc7f698afd8215c59d0123872223a9;hb=f16a5e347835c6a0ba958535cf6e6c89d50463b8;hp=17c92a57b0ddf6286f5e8d8094c27eebedd841ee;hpb=e46754f8c9333170f11780d8e3a70da1b1a88338;p=pandora-kernel.git diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c index 17c92a57b0dd..18b0a83c4bbc 100644 --- a/drivers/staging/comedi/drivers/ssv_dnp.c +++ b/drivers/staging/comedi/drivers/ssv_dnp.c @@ -41,14 +41,14 @@ Status: unknown /* 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 -------- */ @@ -59,8 +59,9 @@ struct dnp_board { 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, @@ -80,9 +81,9 @@ struct dnp_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. */ +/* 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. */ /* ------------------------------------------------------------------------- */ @@ -97,7 +98,7 @@ static struct comedi_driver driver_dnp = { .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), }; @@ -122,28 +123,30 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it) 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; @@ -158,7 +161,7 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it) * 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); @@ -181,7 +184,7 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it) 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); @@ -189,8 +192,8 @@ static int dnp_detach(struct comedi_device *dev) 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; @@ -210,12 +213,12 @@ static int dnp_dio_insn_bits(struct comedi_device *dev, 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]) { @@ -235,7 +238,7 @@ static int dnp_dio_insn_bits(struct comedi_device *dev, | (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); @@ -260,7 +263,8 @@ static int dnp_dio_insn_config(struct comedi_device *dev, 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: @@ -275,11 +279,11 @@ static int dnp_dio_insn_config(struct comedi_device *dev, 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 */ @@ -289,8 +293,8 @@ static int dnp_dio_insn_config(struct comedi_device *dev, 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); @@ -298,7 +302,7 @@ static int dnp_dio_insn_config(struct comedi_device *dev, 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);