diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-03-03 16:47:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-04 16:40:27 -0800 |
| commit | 4761fb4e4a97a512983e5cff422ef64e0c164454 (patch) | |
| tree | 9f88e7b6909973028387688bb4778e903c84bb41 /drivers/staging/comedi/drivers/ke_counter.c | |
| parent | 8fff5ac61d0e937bfb5bf3d142a4d42f94dc1bf0 (diff) | |
staging: comedi: ke_counter: define the register map
Define the register map for the board and remove the magic values.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ke_counter.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ke_counter.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c index 53687fbe2c4d..17cba90dfb39 100644 --- a/drivers/staging/comedi/drivers/ke_counter.c +++ b/drivers/staging/comedi/drivers/ke_counter.c @@ -34,6 +34,21 @@ Kolter Electronic PCI Counter Card. #include "../comedidev.h" +/* + * PCI BAR 0 Register I/O map + */ +#define KE_RESET_REG(x) (0x00 + ((x) * 0x20)) +#define KE_LATCH_REG(x) (0x00 + ((x) * 0x20)) +#define KE_LSB_REG(x) (0x04 + ((x) * 0x20)) +#define KE_MID_REG(x) (0x08 + ((x) * 0x20)) +#define KE_MSB_REG(x) (0x0c + ((x) * 0x20)) +#define KE_SIGN_REG(x) (0x10 + ((x) * 0x20)) +#define KE_OSC_SEL_REG 0xf8 +#define KE_OSC_SEL_EXT (1 << 0) +#define KE_OSC_SEL_4MHZ (2 << 0) +#define KE_OSC_SEL_20MHZ (3 << 0) +#define KE_DO_REG 0xfc + /*-- counter write ----------------------------------------------------------*/ /* This should be used only for resetting the counters; maybe it is better @@ -45,13 +60,13 @@ static int cnt_winsn(struct comedi_device *dev, int chan = CR_CHAN(insn->chanspec); outb((unsigned char)((data[0] >> 24) & 0xff), - dev->iobase + chan * 0x20 + 0x10); + dev->iobase + KE_SIGN_REG(chan)); outb((unsigned char)((data[0] >> 16) & 0xff), - dev->iobase + chan * 0x20 + 0x0c); + dev->iobase + KE_MSB_REG(chan)); outb((unsigned char)((data[0] >> 8) & 0xff), - dev->iobase + chan * 0x20 + 0x08); + dev->iobase + KE_MID_REG(chan)); outb((unsigned char)((data[0] >> 0) & 0xff), - dev->iobase + chan * 0x20 + 0x04); + dev->iobase + KE_LSB_REG(chan)); /* return the number of samples written */ return 1; @@ -67,11 +82,11 @@ static int cnt_rinsn(struct comedi_device *dev, int chan = CR_CHAN(insn->chanspec); int result; - a0 = inb(dev->iobase + chan * 0x20); - a1 = inb(dev->iobase + chan * 0x20 + 0x04); - a2 = inb(dev->iobase + chan * 0x20 + 0x08); - a3 = inb(dev->iobase + chan * 0x20 + 0x0c); - a4 = inb(dev->iobase + chan * 0x20 + 0x10); + a0 = inb(dev->iobase + KE_LATCH_REG(chan)); + a1 = inb(dev->iobase + KE_LSB_REG(chan)); + a2 = inb(dev->iobase + KE_MID_REG(chan)); + a3 = inb(dev->iobase + KE_MSB_REG(chan)); + a4 = inb(dev->iobase + KE_SIGN_REG(chan)); result = (a1 + (a2 * 256) + (a3 * 65536)); if (a4 > 0) @@ -109,13 +124,11 @@ static int cnt_auto_attach(struct comedi_device *dev, s->insn_read = cnt_rinsn; s->insn_write = cnt_winsn; - /* select 20MHz clock */ - outb(3, dev->iobase + 248); + outb(KE_OSC_SEL_20MHZ, dev->iobase + KE_OSC_SEL_REG); - /* reset all counters */ - outb(0, dev->iobase); - outb(0, dev->iobase + 0x20); - outb(0, dev->iobase + 0x40); + outb(0, dev->iobase + KE_RESET_REG(0)); + outb(0, dev->iobase + KE_RESET_REG(1)); + outb(0, dev->iobase + KE_RESET_REG(2)); return 0; } |