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staging: comedi: 8255: provide common defines for registers

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There are a couple comedi drivers that duplicate some of the register
defines used by the 8255 module. Move these defines into the header
so the duplication can be removed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2014-08-12 11:41:29 -07:00 committed by Greg Kroah-Hartman
parent 5c19084bbd
commit f016209146
8 changed files with 56 additions and 76 deletions
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42
drivers/staging/comedi/drivers/8255.c
View File

@ -79,19 +79,6 @@ I/O port base address can be found in the output of 'lspci -v'.
#include "comedi_fc.h"
#include "8255.h"
#define _8255_SIZE 4
#define _8255_DATA 0
#define _8255_CR 3
#define CR_C_LO_IO 0x01
#define CR_B_IO 0x02
#define CR_B_MODE 0x04
#define CR_C_HI_IO 0x08
#define CR_A_IO 0x10
#define CR_A_MODE(a) ((a)<<5)
#define CR_CW 0x80
struct subdev_8255_private {
unsigned long regbase;
int (*io)(struct comedi_device *, int, int, int, unsigned long);
@ -130,18 +117,19 @@ static int subdev_8255_insn(struct comedi_device *dev,
mask = comedi_dio_update_state(s, data);
if (mask) {
if (mask & 0xff)
spriv->io(dev, 1, _8255_DATA, s->state & 0xff, regbase);
spriv->io(dev, 1, I8255_DATA_A_REG,
s->state & 0xff, regbase);
if (mask & 0xff00)
spriv->io(dev, 1, _8255_DATA + 1,
spriv->io(dev, 1, I8255_DATA_B_REG,
(s->state >> 8) & 0xff, regbase);
if (mask & 0xff0000)
spriv->io(dev, 1, _8255_DATA + 2,
spriv->io(dev, 1, I8255_DATA_C_REG,
(s->state >> 16) & 0xff, regbase);
}
v = spriv->io(dev, 0, _8255_DATA, 0, regbase);
v |= (spriv->io(dev, 0, _8255_DATA + 1, 0, regbase) << 8);
v |= (spriv->io(dev, 0, _8255_DATA + 2, 0, regbase) << 16);
v = spriv->io(dev, 0, I8255_DATA_A_REG, 0, regbase);
v |= (spriv->io(dev, 0, I8255_DATA_B_REG, 0, regbase) << 8);
v |= (spriv->io(dev, 0, I8255_DATA_C_REG, 0, regbase) << 16);
data[1] = v;
@ -155,18 +143,18 @@ static void subdev_8255_do_config(struct comedi_device *dev,
unsigned long regbase = spriv->regbase;
int config;
config = CR_CW;
config = I8255_CTRL_CW;
/* 1 in io_bits indicates output, 1 in config indicates input */
if (!(s->io_bits & 0x0000ff))
config |= CR_A_IO;
config |= I8255_CTRL_A_IO;
if (!(s->io_bits & 0x00ff00))
config |= CR_B_IO;
config |= I8255_CTRL_B_IO;
if (!(s->io_bits & 0x0f0000))
config |= CR_C_LO_IO;
config |= I8255_CTRL_C_LO_IO;
if (!(s->io_bits & 0xf00000))
config |= CR_C_HI_IO;
config |= I8255_CTRL_C_HI_IO;
spriv->io(dev, 1, _8255_CR, config, regbase);
spriv->io(dev, 1, I8255_CTRL_REG, config, regbase);
}
static int subdev_8255_insn_config(struct comedi_device *dev,
@ -286,7 +274,7 @@ static int dev_8255_attach(struct comedi_device *dev,
* comedi_config, the 'iobase' is the actual I/O port
* base address of the chip.
*/
ret = __comedi_request_region(dev, iobase, _8255_SIZE);
ret = __comedi_request_region(dev, iobase, I8255_SIZE);
if (ret) {
s->type = COMEDI_SUBD_UNUSED;
} else {
@ -309,7 +297,7 @@ static void dev_8255_detach(struct comedi_device *dev)
s = &dev->subdevices[i];
if (s->type != COMEDI_SUBD_UNUSED) {
spriv = s->private;
release_region(spriv->regbase, _8255_SIZE);
release_region(spriv->regbase, I8255_SIZE);
}
}
}

14
drivers/staging/comedi/drivers/8255.h
View File

@ -21,6 +21,20 @@
#include "../comedidev.h"
#define I8255_SIZE 0x04
#define I8255_DATA_A_REG 0x00
#define I8255_DATA_B_REG 0x01
#define I8255_DATA_C_REG 0x02
#define I8255_CTRL_REG 0x03
#define I8255_CTRL_C_LO_IO (1 << 0)
#define I8255_CTRL_B_IO (1 << 1)
#define I8255_CTRL_B_MODE (1 << 2)
#define I8255_CTRL_C_HI_IO (1 << 3)
#define I8255_CTRL_A_IO (1 << 4)
#define I8255_CTRL_A_MODE(x) ((x) << 5)
#define I8255_CTRL_CW (1 << 7)
int subdev_8255_init(struct comedi_device *, struct comedi_subdevice *,
int (*io)(struct comedi_device *,
int, int, int, unsigned long),

4
drivers/staging/comedi/drivers/8255_pci.c
View File

@ -236,9 +236,9 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
for (i = 0; i < board->n_8255; i++) {
s = &dev->subdevices[i];
if (dev->mmio)
ret = subdev_8255_mm_init(dev, s, NULL, i * 4);
ret = subdev_8255_mm_init(dev, s, NULL, i * I8255_SIZE);
else
ret = subdev_8255_init(dev, s, NULL, i * 4);
ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
if (ret)
return ret;
}

3
drivers/staging/comedi/drivers/adv_pci_dio.c
View File

@ -66,7 +66,6 @@ enum hw_io_access {
* subdevice) */
#define SIZE_8254 4 /* 8254 IO space length */
#define SIZE_8255 4 /* 8255 IO space length */
#define PCIDIO_MAINREG 2 /* main I/O region for all Advantech cards? */
@ -1133,7 +1132,7 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
s = &dev->subdevices[subdev];
ret = subdev_8255_init(dev, s, NULL,
this_board->sdio[i].addr +
SIZE_8255 * j);
j * I8255_SIZE);
if (ret)
return ret;
subdev++;

35
drivers/staging/comedi/drivers/amplc_dio200_common.c
View File

@ -27,15 +27,7 @@
#include "amplc_dio200.h"
#include "comedi_fc.h"
#include "8253.h"
/* 8255 control register bits */
#define CR_C_LO_IO 0x01
#define CR_B_IO 0x02
#define CR_B_MODE 0x04
#define CR_C_HI_IO 0x08
#define CR_A_IO 0x10
#define CR_A_MODE(a) ((a)<<5)
#define CR_CW 0x80
#include "8255.h" /* only for register defines */
/* 200 series registers */
#define DIO200_IO_SIZE 0x20
@ -815,17 +807,17 @@ static void dio200_subdev_8255_set_dir(struct comedi_device *dev,
struct dio200_subdev_8255 *subpriv = s->private;
int config;
config = CR_CW;
config = I8255_CTRL_CW;
/* 1 in io_bits indicates output, 1 in config indicates input */
if (!(s->io_bits & 0x0000ff))
config |= CR_A_IO;
config |= I8255_CTRL_A_IO;
if (!(s->io_bits & 0x00ff00))
config |= CR_B_IO;
config |= I8255_CTRL_B_IO;
if (!(s->io_bits & 0x0f0000))
config |= CR_C_LO_IO;
config |= I8255_CTRL_C_LO_IO;
if (!(s->io_bits & 0xf00000))
config |= CR_C_HI_IO;
dio200_write8(dev, subpriv->ofs + 3, config);
config |= I8255_CTRL_C_HI_IO;
dio200_write8(dev, subpriv->ofs + I8255_CTRL_REG, config);
}
static int dio200_subdev_8255_bits(struct comedi_device *dev,
@ -840,18 +832,19 @@ static int dio200_subdev_8255_bits(struct comedi_device *dev,
mask = comedi_dio_update_state(s, data);
if (mask) {
if (mask & 0xff)
dio200_write8(dev, subpriv->ofs, s->state & 0xff);
dio200_write8(dev, subpriv->ofs + I8255_DATA_A_REG,
s->state & 0xff);
if (mask & 0xff00)
dio200_write8(dev, subpriv->ofs + 1,
dio200_write8(dev, subpriv->ofs + I8255_DATA_B_REG,
(s->state >> 8) & 0xff);
if (mask & 0xff0000)
dio200_write8(dev, subpriv->ofs + 2,
dio200_write8(dev, subpriv->ofs + I8255_DATA_C_REG,
(s->state >> 16) & 0xff);
}
val = dio200_read8(dev, subpriv->ofs);
val |= dio200_read8(dev, subpriv->ofs + 1) << 8;
val |= dio200_read8(dev, subpriv->ofs + 2) << 16;
val = dio200_read8(dev, subpriv->ofs + I8255_DATA_A_REG);
val |= dio200_read8(dev, subpriv->ofs + I8255_DATA_B_REG) << 8;
val |= dio200_read8(dev, subpriv->ofs + I8255_DATA_C_REG) << 16;
data[1] = val;

2
drivers/staging/comedi/drivers/cb_pcidda.c
View File

@ -378,7 +378,7 @@ static int cb_pcidda_auto_attach(struct comedi_device *dev,
/* two 8255 digital io subdevices */
for (i = 0; i < 2; i++) {
s = &dev->subdevices[1 + i];
ret = subdev_8255_init(dev, s, NULL, i * 4);
ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
if (ret)
return ret;
}

6
drivers/staging/comedi/drivers/pcl724.c
View File

@ -32,8 +32,6 @@
#include "8255.h"
#define SIZE_8255 4
struct pcl724_board {
const char *name;
unsigned int io_range;
@ -85,7 +83,7 @@ static int pcl724_8255mapped_io(struct comedi_device *dev,
int dir, int port, int data,
unsigned long iobase)
{
int movport = SIZE_8255 * (iobase >> 12);
int movport = I8255_SIZE * (iobase >> 12);
iobase &= 0x0fff;
@ -133,7 +131,7 @@ static int pcl724_attach(struct comedi_device *dev,
ret = subdev_8255_init(dev, s, pcl724_8255mapped_io,
iobase);
} else {
ret = subdev_8255_init(dev, s, NULL, i * SIZE_8255);
ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
}
if (ret)
return ret;

26
drivers/staging/comedi/drivers/pcm3724.c
View File

@ -33,8 +33,6 @@ Copy/pasted/hacked from pcm724.c
#include "8255.h"
#define SIZE_8255 4
#define BUF_C0 0x1
#define BUF_B0 0x2
#define BUF_A0 0x4
@ -49,16 +47,6 @@ Copy/pasted/hacked from pcm724.c
#define GATE_B1 0x10
#define GATE_C1 0x8
/* from 8255.c */
#define CR_CW 0x80
#define _8255_CR 3
#define CR_B_IO 0x02
#define CR_B_MODE 0x04
#define CR_C_IO 0x09
#define CR_A_IO 0x10
#define CR_A_MODE(a) ((a)<<5)
#define CR_CW 0x80
/* used to track configured dios */
struct priv_pcm3724 {
int dio_1;
@ -98,26 +86,26 @@ static void do_3724_config(struct comedi_device *dev,
int buffer_config;
unsigned long port_8255_cfg;
config = CR_CW;
config = I8255_CTRL_CW;
buffer_config = 0;
/* 1 in io_bits indicates output, 1 in config indicates input */
if (!(s->io_bits & 0x0000ff))
config |= CR_A_IO;
config |= I8255_CTRL_A_IO;
if (!(s->io_bits & 0x00ff00))
config |= CR_B_IO;
config |= I8255_CTRL_B_IO;
if (!(s->io_bits & 0xff0000))
config |= CR_C_IO;
config |= I8255_CTRL_C_HI_IO | I8255_CTRL_C_LO_IO;
buffer_config = compute_buffer(0, 0, s_dio1);
buffer_config = compute_buffer(buffer_config, 1, s_dio2);
if (s == s_dio1)
port_8255_cfg = dev->iobase + _8255_CR;
port_8255_cfg = dev->iobase + I8255_CTRL_REG;
else
port_8255_cfg = dev->iobase + SIZE_8255 + _8255_CR;
port_8255_cfg = dev->iobase + I8255_SIZE + I8255_CTRL_REG;
outb(buffer_config, dev->iobase + 8); /* update buffer register */
@ -211,7 +199,7 @@ static int pcm3724_attach(struct comedi_device *dev,
for (i = 0; i < dev->n_subdevices; i++) {
s = &dev->subdevices[i];
ret = subdev_8255_init(dev, s, NULL, i * SIZE_8255);
ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
if (ret)
return ret;
s->insn_config = subdev_3724_insn_config;