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Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci8164.c')
-rw-r--r--drivers/staging/comedi/drivers/adl_pci8164.c346
1 files changed, 97 insertions, 249 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
index d06b83f38653..b3ec60afe3a0 100644
--- a/drivers/staging/comedi/drivers/adl_pci8164.c
+++ b/drivers/staging/comedi/drivers/adl_pci8164.c
@@ -1,217 +1,74 @@
/*
- comedi/drivers/adl_pci8164.c
-
- Hardware comedi driver fot PCI-8164 Adlink card
- Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * comedi/drivers/adl_pci8164.c
+ *
+ * Hardware comedi driver for PCI-8164 Adlink card
+ * Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
-*/
/*
-Driver: adl_pci8164
-Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
-Devices: [ADLink] PCI-8164 (adl_pci8164)
-Author: Michel Lachaine <mike@mikelachaine.ca>
-Status: experimental
-Updated: Mon, 14 Apr 2008 15:10:32 +0100
-
-Configuration Options: not applicable, uses PCI auto config
-*/
+ * Driver: adl_pci8164
+ * Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
+ * Devices: (ADLink) PCI-8164 [adl_pci8164]
+ * Author: Michel Lachaine <mike@mikelachaine.ca>
+ * Status: experimental
+ * Updated: Mon, 14 Apr 2008 15:10:32 +0100
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ */
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include "../comedidev.h"
-#include "comedi_fc.h"
-#include "8253.h"
-
-#define PCI8164_AXIS_X 0x00
-#define PCI8164_AXIS_Y 0x08
-#define PCI8164_AXIS_Z 0x10
-#define PCI8164_AXIS_U 0x18
-#define PCI8164_MSTS 0x00
-#define PCI8164_SSTS 0x02
-#define PCI8164_BUF0 0x04
-#define PCI8164_BUF1 0x06
-
-#define PCI8164_CMD 0x00
-#define PCI8164_OTP 0x02
-
-#define PCI_DEVICE_ID_PCI8164 0x8164
-
-/*
- all the read commands are the same except for the addition a constant
- * const to the data for inw()
- */
-static void adl_pci8164_insn_read(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data,
- char *action, unsigned short offset)
-{
- int axis, axis_reg;
- char axisname;
-
- axis = CR_CHAN(insn->chanspec);
-
- switch (axis) {
- case 0:
- axis_reg = PCI8164_AXIS_X;
- axisname = 'X';
- break;
- case 1:
- axis_reg = PCI8164_AXIS_Y;
- axisname = 'Y';
- break;
- case 2:
- axis_reg = PCI8164_AXIS_Z;
- axisname = 'Z';
- break;
- case 3:
- axis_reg = PCI8164_AXIS_U;
- axisname = 'U';
- break;
- default:
- axis_reg = PCI8164_AXIS_X;
- axisname = 'X';
- }
-
- data[0] = inw(dev->iobase + axis_reg + offset);
- dev_dbg(dev->class_dev,
- "pci8164 %s read -> %04X:%04X on axis %c\n",
- action, data[0], data[1], axisname);
-}
-
-static int adl_pci8164_insn_read_msts(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_read(dev, s, insn, data, "MSTS", PCI8164_MSTS);
- return 2;
-}
-
-static int adl_pci8164_insn_read_ssts(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_read(dev, s, insn, data, "SSTS", PCI8164_SSTS);
- return 2;
-}
-
-static int adl_pci8164_insn_read_buf0(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_read(dev, s, insn, data, "BUF0", PCI8164_BUF0);
- return 2;
-}
+#define PCI8164_AXIS(x) ((x) * 0x08)
+#define PCI8164_CMD_MSTS_REG 0x00
+#define PCI8164_OTP_SSTS_REG 0x02
+#define PCI8164_BUF0_REG 0x04
+#define PCI8164_BUF1_REG 0x06
-static int adl_pci8164_insn_read_buf1(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_read(dev, s, insn, data, "BUF1", PCI8164_BUF1);
- return 2;
-}
-
-/*
- all the write commands are the same except for the addition a constant
- * const to the data for outw()
- */
-static void adl_pci8164_insn_out(struct comedi_device *dev,
+static int adl_pci8164_insn_read(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
- unsigned int *data,
- char *action, unsigned short offset)
+ unsigned int *data)
{
- unsigned int axis, axis_reg;
-
- char axisname;
-
- axis = CR_CHAN(insn->chanspec);
+ unsigned long offset = (unsigned long)s->private;
+ unsigned int chan = CR_CHAN(insn->chanspec);
+ int i;
- switch (axis) {
- case 0:
- axis_reg = PCI8164_AXIS_X;
- axisname = 'X';
- break;
- case 1:
- axis_reg = PCI8164_AXIS_Y;
- axisname = 'Y';
- break;
- case 2:
- axis_reg = PCI8164_AXIS_Z;
- axisname = 'Z';
- break;
- case 3:
- axis_reg = PCI8164_AXIS_U;
- axisname = 'U';
- break;
- default:
- axis_reg = PCI8164_AXIS_X;
- axisname = 'X';
- }
-
- outw(data[0], dev->iobase + axis_reg + offset);
-
- dev_dbg(dev->class_dev,
- "pci8164 %s write -> %04X:%04X on axis %c\n",
- action, data[0], data[1], axisname);
+ for (i = 0; i < insn->n; i++)
+ data[i] = inw(dev->iobase + PCI8164_AXIS(chan) + offset);
+ return insn->n;
}
-static int adl_pci8164_insn_write_cmd(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_out(dev, s, insn, data, "CMD", PCI8164_CMD);
- return 2;
-}
-
-static int adl_pci8164_insn_write_otp(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
+static int adl_pci8164_insn_write(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
{
- adl_pci8164_insn_out(dev, s, insn, data, "OTP", PCI8164_OTP);
- return 2;
-}
+ unsigned long offset = (unsigned long)s->private;
+ unsigned int chan = CR_CHAN(insn->chanspec);
+ int i;
-static int adl_pci8164_insn_write_buf0(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_out(dev, s, insn, data, "BUF0", PCI8164_BUF0);
- return 2;
-}
+ for (i = 0; i < insn->n; i++)
+ outw(data[i], dev->iobase + PCI8164_AXIS(chan) + offset);
-static int adl_pci8164_insn_write_buf1(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- adl_pci8164_insn_out(dev, s, insn, data, "BUF1", PCI8164_BUF1);
- return 2;
+ return insn->n;
}
static int adl_pci8164_auto_attach(struct comedi_device *dev,
@@ -221,9 +78,7 @@ static int adl_pci8164_auto_attach(struct comedi_device *dev,
struct comedi_subdevice *s;
int ret;
- dev->board_name = dev->driver->driver_name;
-
- ret = comedi_pci_enable(pcidev, dev->board_name);
+ ret = comedi_pci_enable(dev);
if (ret)
return ret;
dev->iobase = pci_resource_start(pcidev, 2);
@@ -232,77 +87,70 @@ static int adl_pci8164_auto_attach(struct comedi_device *dev,
if (ret)
return ret;
+ /* read MSTS register / write CMD register for each axis (channel) */
s = &dev->subdevices[0];
- s->type = COMEDI_SUBD_PROC;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 4;
- s->maxdata = 0xffff;
- s->len_chanlist = 4;
- /* s->range_table = &range_axis; */
- s->insn_read = adl_pci8164_insn_read_msts;
- s->insn_write = adl_pci8164_insn_write_cmd;
-
+ s->type = COMEDI_SUBD_PROC;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 4;
+ s->maxdata = 0xffff;
+ s->len_chanlist = 4;
+ s->insn_read = adl_pci8164_insn_read;
+ s->insn_write = adl_pci8164_insn_write;
+ s->private = (void *)PCI8164_CMD_MSTS_REG;
+
+ /* read SSTS register / write OTP register for each axis (channel) */
s = &dev->subdevices[1];
- s->type = COMEDI_SUBD_PROC;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 4;
- s->maxdata = 0xffff;
- s->len_chanlist = 4;
- /* s->range_table = &range_axis; */
- s->insn_read = adl_pci8164_insn_read_ssts;
- s->insn_write = adl_pci8164_insn_write_otp;
-
+ s->type = COMEDI_SUBD_PROC;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 4;
+ s->maxdata = 0xffff;
+ s->len_chanlist = 4;
+ s->insn_read = adl_pci8164_insn_read;
+ s->insn_write = adl_pci8164_insn_write;
+ s->private = (void *)PCI8164_OTP_SSTS_REG;
+
+ /* read/write BUF0 register for each axis (channel) */
s = &dev->subdevices[2];
- s->type = COMEDI_SUBD_PROC;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 4;
- s->maxdata = 0xffff;
- s->len_chanlist = 4;
- /* s->range_table = &range_axis; */
- s->insn_read = adl_pci8164_insn_read_buf0;
- s->insn_write = adl_pci8164_insn_write_buf0;
-
+ s->type = COMEDI_SUBD_PROC;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 4;
+ s->maxdata = 0xffff;
+ s->len_chanlist = 4;
+ s->insn_read = adl_pci8164_insn_read;
+ s->insn_write = adl_pci8164_insn_write;
+ s->private = (void *)PCI8164_BUF0_REG;
+
+ /* read/write BUF1 register for each axis (channel) */
s = &dev->subdevices[3];
- s->type = COMEDI_SUBD_PROC;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 4;
- s->maxdata = 0xffff;
- s->len_chanlist = 4;
- /* s->range_table = &range_axis; */
- s->insn_read = adl_pci8164_insn_read_buf1;
- s->insn_write = adl_pci8164_insn_write_buf1;
-
- dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+ s->type = COMEDI_SUBD_PROC;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ s->n_chan = 4;
+ s->maxdata = 0xffff;
+ s->len_chanlist = 4;
+ s->insn_read = adl_pci8164_insn_read;
+ s->insn_write = adl_pci8164_insn_write;
+ s->private = (void *)PCI8164_BUF1_REG;
return 0;
}
-static void adl_pci8164_detach(struct comedi_device *dev)
-{
- struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
- if (pcidev) {
- if (dev->iobase)
- comedi_pci_disable(pcidev);
- }
-}
-
static struct comedi_driver adl_pci8164_driver = {
.driver_name = "adl_pci8164",
.module = THIS_MODULE,
.auto_attach = adl_pci8164_auto_attach,
- .detach = adl_pci8164_detach,
+ .detach = comedi_pci_disable,
};
static int adl_pci8164_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *id)
{
- return comedi_pci_auto_config(dev, &adl_pci8164_driver);
+ return comedi_pci_auto_config(dev, &adl_pci8164_driver,
+ id->driver_data);
}
static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = {
- { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) },
- {0}
+ { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x8164) },
+ { 0 }
};
MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);
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