The PCI-1760 board unique. It uses a outgoing/incoming mailbox programming
sequence to access the hardware. The other boards supported by this driver
use simple register mapping. Including support for the PCI-1760 in this
driver just makes it harder to understand.

Separate out the PCI-1760 support into a new driver, adv_pci1760.

Clean up the new driver. The original code had a bunch of CamelCase and
other checkpatch.pl issues.

The code used to access the outgoing/incoming mailboxes was also a bit
awkward with the passing of the arrays for the outgoing and incoming
mailbox bytes. Replace them with two new functions that send a command
and return the feedback data from the command based on the programming
flow chart in the datasheet for the PCI-1760.

The new adv_pci1760 driver also fixes the incomplete timer subdevice.
This subdevice is actually the 2 PWM outputs so the subdevice type
has been changed to COMEDI_SUBD_PWM.

The counter subdevice support was not complete in the original code.
For now that subdevice has been disabled (COMEDI_SUBD_UNUSED).

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/comedi/Kconfig               |  12 +-
 drivers/staging/comedi/drivers/Makefile      |   1 +
 drivers/staging/comedi/drivers/adv_pci1760.c | 432 +++++++++++++++++++++++++++
 drivers/staging/comedi/drivers/adv_pci_dio.c | 417 +-------------------------
 4 files changed, 445 insertions(+), 417 deletions(-)
 create mode 100644 drivers/staging/comedi/drivers/adv_pci1760.c

diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 945c85a..e7255f8 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -772,6 +772,14 @@ config COMEDI_ADV_PCI1724
          To compile this driver as a module, choose M here: the module will be
          called adv_pci1724.
 
+config COMEDI_ADV_PCI1760
+       tristate "Advantech PCI-1760 support"
+       ---help---
+         Enable support for Advantech PCI-1760 board.
+
+         To compile this driver as a module, choose M here: the module will be
+         called adv_pci1760.
+
 config COMEDI_ADV_PCI_DIO
        tristate "Advantech PCI DIO card support"
        select COMEDI_8254
@@ -779,8 +787,8 @@ config COMEDI_ADV_PCI_DIO
        ---help---
          Enable support for Advantech PCI DIO cards
          PCI-1730, PCI-1733, PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U,
-         PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756,
-         PCI-1760 and PCI-1762
+         PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756 and
+         PCI-1762
 
          To compile this driver as a module, choose M here: the module will be
          called adv_pci_dio.
diff --git a/drivers/staging/comedi/drivers/Makefile 
b/drivers/staging/comedi/drivers/Makefile
index 94c179b..0c8cfa7 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -81,6 +81,7 @@ obj-$(CONFIG_COMEDI_ADV_PCI1710)      += adv_pci1710.o
 obj-$(CONFIG_COMEDI_ADV_PCI1720)       += adv_pci1720.o
 obj-$(CONFIG_COMEDI_ADV_PCI1723)       += adv_pci1723.o
 obj-$(CONFIG_COMEDI_ADV_PCI1724)       += adv_pci1724.o
+obj-$(CONFIG_COMEDI_ADV_PCI1760)       += adv_pci1760.o
 obj-$(CONFIG_COMEDI_ADV_PCI_DIO)       += adv_pci_dio.o
 obj-$(CONFIG_COMEDI_AMPLC_DIO200_PCI)  += amplc_dio200_pci.o
 obj-$(CONFIG_COMEDI_AMPLC_PC236_PCI)   += amplc_pci236.o
diff --git a/drivers/staging/comedi/drivers/adv_pci1760.c 
b/drivers/staging/comedi/drivers/adv_pci1760.c
new file mode 100644
index 0000000..8d71165
--- /dev/null
+++ b/drivers/staging/comedi/drivers/adv_pci1760.c
@@ -0,0 +1,432 @@
+/*
+ * COMEDI driver for the Advantech PCI-1760
+ * Copyright (C) 2015 H Hartley Sweeten <hswee...@visionengravers.com>
+ *
+ * Based on the pci1760 support in the adv_pci_dio driver written by:
+ *     Michal Dobes <do...@tesnet.cz>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <d...@schleef.org>
+ *
+ * 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.
+ */
+
+/*
+ * Driver: adv_pci1760
+ * Description: Advantech PCI-1760 Relay & Isolated Digital Input Card
+ * Devices: [Advantech] PCI-1760 (adv_pci1760)
+ * Author: H Hartley Sweeten <hswee...@visionengravers.com>
+ * Updated: Mon, 09 Jan 2012 12:40:46 +0000
+ * Status: untested
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ */
+
+#include <linux/module.h>
+
+#include "../comedi_pci.h"
+
+/*
+ * PCI-760 Register Map
+ *
+ * Outgoing Mailbox Bytes
+ * OMB3: Not used (must be 0)
+ * OMB2: The command code to the PCI-1760
+ * OMB1: The hi byte of the parameter for the command in OMB2
+ * OMB0: The lo byte of the parameter for the command in OMB2
+ *
+ * Incoming Mailbox Bytes
+ * IMB3: The Isolated Digital Input status (updated every 100us)
+ * IMB2: The current command (matches OMB2 when command is successful)
+ * IMB1: The hi byte of the feedback data for the command in OMB2
+ * IMB0: The lo byte of the feedback data for the command in OMB2
+ *
+ * Interrupt Control/Status
+ * INTCSR3: Not used (must be 0)
+ * INTCSR2: The interrupt status (read only)
+ * INTCSR1: Interrupt enable/disable
+ * INTCSR0: Not used (must be 0)
+ */
+#define PCI1760_OMB_REG(x)             (0x0c + (x))
+#define PCI1760_IMB_REG(x)             (0x1c + (x))
+#define PCI1760_INTCSR_REG(x)          (0x38 + (x))
+#define PCI1760_INTCSR1_IRQ_ENA                BIT(5)
+#define PCI1760_INTCSR2_OMB_IRQ                BIT(0)
+#define PCI1760_INTCSR2_IMB_IRQ                BIT(1)
+#define PCI1760_INTCSR2_IRQ_STATUS     BIT(6)
+#define PCI1760_INTCSR2_IRQ_ASSERTED   BIT(7)
+
+/* PCI-1760 command codes */
+#define PCI1760_CMD_CLR_IMB2           0x00    /* Clears IMB2 */
+#define PCI1760_CMD_SET_DO             0x01    /* Set output state */
+#define PCI1760_CMD_GET_DO             0x02    /* Read output status */
+#define PCI1760_CMD_GET_STATUS         0x03    /* Read current status */
+#define PCI1760_CMD_GET_FW_VER         0x0e    /* Read firware version */
+#define PCI1760_CMD_GET_HW_VER         0x0f    /* Read hardware version */
+#define PCI1760_CMD_SET_PWM_HI(x)      (0x10 + (x) * 2) /* Set "hi" period */
+#define PCI1760_CMD_SET_PWM_LO(x)      (0x11 + (x) * 2) /* Set "lo" period */
+#define PCI1760_CMD_SET_PWM_CNT(x)     (0x14 + (x)) /* Set burst count */
+#define PCI1760_CMD_ENA_PWM            0x1f    /* Enable PWM outputs */
+#define PCI1760_CMD_ENA_FILT           0x20    /* Enable input filter */
+#define PCI1760_CMD_ENA_PAT_MATCH      0x21    /* Enable input pattern match */
+#define PCI1760_CMD_SET_PAT_MATCH      0x22    /* Set input pattern match */
+#define PCI1760_CMD_ENA_RISE_EDGE      0x23    /* Enable input rising edge */
+#define PCI1760_CMD_ENA_FALL_EDGE      0x24    /* Enable input falling edge */
+#define PCI1760_CMD_ENA_CNT            0x28    /* Enable counter */
+#define PCI1760_CMD_RST_CNT            0x29    /* Reset counter */
+#define PCI1760_CMD_ENA_CNT_OFLOW      0x2a    /* Enable counter overflow */
+#define PCI1760_CMD_ENA_CNT_MATCH      0x2b    /* Enable counter match */
+#define PCI1760_CMD_SET_CNT_EDGE       0x2c    /* Set counter edge */
+#define PCI1760_CMD_GET_CNT            0x2f    /* Reads counter value */
+#define PCI1760_CMD_SET_HI_SAMP(x)     (0x30 + (x)) /* Set "hi" sample time */
+#define PCI1760_CMD_SET_LO_SAMP(x)     (0x38 + (x)) /* Set "lo" sample time */
+#define PCI1760_CMD_SET_CNT(x)         (0x40 + (x)) /* Set counter reset val */
+#define PCI1760_CMD_SET_CNT_MATCH(x)   (0x48 + (x)) /* Set counter match val */
+#define PCI1760_CMD_GET_INT_FLAGS      0x60    /* Read interrupt flags */
+#define PCI1760_CMD_GET_INT_FLAGS_MATCH        BIT(0)
+#define PCI1760_CMD_GET_INT_FLAGS_COS  BIT(1)
+#define PCI1760_CMD_GET_INT_FLAGS_OFLOW        BIT(2)
+#define PCI1760_CMD_GET_OS             0x61    /* Read edge change flags */
+#define PCI1760_CMD_GET_CNT_STATUS     0x62    /* Read counter oflow/match */
+
+#define PCI1760_CMD_TIMEOUT            250     /* 250 usec timeout */
+#define PCI1760_CMD_RETRIES            3       /* limit number of retries */
+
+#define PCI1760_PWM_TIMEBASE           100000  /* 1 unit = 100 usec */
+
+static int pci1760_send_cmd(struct comedi_device *dev,
+                           unsigned char cmd, unsigned short val)
+{
+       unsigned long timeout;
+
+       /* send the command and parameter */
+       outb(val & 0xff, dev->iobase + PCI1760_OMB_REG(0));
+       outb((val >> 8) & 0xff, dev->iobase + PCI1760_OMB_REG(1));
+       outb(cmd, dev->iobase + PCI1760_OMB_REG(2));
+       outb(0, dev->iobase + PCI1760_OMB_REG(3));
+
+       /* datasheet says to allow up to 250 usec for the command to complete */
+       timeout = jiffies + usecs_to_jiffies(PCI1760_CMD_TIMEOUT);
+       do {
+               if (inb(dev->iobase + PCI1760_IMB_REG(2)) == cmd) {
+                       /* command success; return the feedback data */
+                       return inb(dev->iobase + PCI1760_IMB_REG(0)) |
+                              (inb(dev->iobase + PCI1760_IMB_REG(1)) << 8);
+               }
+               cpu_relax();
+       } while (time_before(jiffies, timeout));
+
+       return -EBUSY;
+}
+
+static int pci1760_cmd(struct comedi_device *dev,
+                      unsigned char cmd, unsigned short val)
+{
+       int repeats;
+       int ret;
+
+       /* send PCI1760_CMD_CLR_IMB2 between identical commands */
+       if (inb(dev->iobase + PCI1760_IMB_REG(2)) == cmd) {
+               ret = pci1760_send_cmd(dev, PCI1760_CMD_CLR_IMB2, 0);
+               if (ret < 0) {
+                       /* timeout? try it once more */
+                       ret = pci1760_send_cmd(dev, PCI1760_CMD_CLR_IMB2, 0);
+                       if (ret < 0)
+                               return -ETIMEDOUT;
+               }
+       }
+
+       /* datasheet says to keep retrying the command */
+       for (repeats = 0; repeats < PCI1760_CMD_RETRIES; repeats++) {
+               ret = pci1760_send_cmd(dev, cmd, val);
+               if (ret >= 0)
+                       return ret;
+       }
+
+       /* command failed! */
+       return -ETIMEDOUT;
+}
+
+static int pci1760_di_insn_bits(struct comedi_device *dev,
+                               struct comedi_subdevice *s,
+                               struct comedi_insn *insn,
+                               unsigned int *data)
+{
+       data[1] = inb(dev->iobase + PCI1760_IMB_REG(3));
+
+       return insn->n;
+}
+
+static int pci1760_do_insn_bits(struct comedi_device *dev,
+                               struct comedi_subdevice *s,
+                               struct comedi_insn *insn,
+                               unsigned int *data)
+{
+       int ret;
+
+       if (comedi_dio_update_state(s, data)) {
+               ret = pci1760_cmd(dev, PCI1760_CMD_SET_DO, s->state);
+               if (ret < 0)
+                       return ret;
+       }
+
+       data[1] = s->state;
+
+       return insn->n;
+}
+
+static int pci1760_pwm_ns_to_div(unsigned int flags, unsigned int ns)
+{
+       unsigned int divisor;
+
+       switch (flags) {
+       case CMDF_ROUND_NEAREST:
+               divisor = DIV_ROUND_CLOSEST(ns, PCI1760_PWM_TIMEBASE);
+               break;
+       case CMDF_ROUND_UP:
+               divisor = DIV_ROUND_UP(ns, PCI1760_PWM_TIMEBASE);
+               break;
+       case CMDF_ROUND_DOWN:
+               divisor = ns / PCI1760_PWM_TIMEBASE;
+       default:
+               return -EINVAL;
+       }
+
+       if (divisor < 1)
+               divisor = 1;
+       if (divisor > 0xffff)
+               divisor = 0xffff;
+
+       return divisor;
+}
+
+static int pci1760_pwm_enable(struct comedi_device *dev,
+                             unsigned int chan, bool enable)
+{
+       int ret;
+
+       ret = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS, PCI1760_CMD_ENA_PWM);
+       if (ret < 0)
+               return ret;
+
+       if (enable)
+               ret |= BIT(chan);
+       else
+               ret &= ~BIT(chan);
+
+       return pci1760_cmd(dev, PCI1760_CMD_ENA_PWM, ret);
+}
+
+static int pci1760_pwm_insn_config(struct comedi_device *dev,
+                                  struct comedi_subdevice *s,
+                                  struct comedi_insn *insn,
+                                  unsigned int *data)
+{
+       unsigned int chan = CR_CHAN(insn->chanspec);
+       int hi_div;
+       int lo_div;
+       int ret;
+
+       switch (data[0]) {
+       case INSN_CONFIG_ARM:
+               ret = pci1760_pwm_enable(dev, chan, false);
+               if (ret < 0)
+                       return ret;
+
+               if (data[1] > 0xffff)
+                       return -EINVAL;
+               ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_CNT(chan), data[1]);
+               if (ret < 0)
+                       return ret;
+
+               ret = pci1760_pwm_enable(dev, chan, true);
+               if (ret < 0)
+                       return ret;
+               break;
+       case INSN_CONFIG_DISARM:
+               ret = pci1760_pwm_enable(dev, chan, false);
+               if (ret < 0)
+                       return ret;
+               break;
+       case INSN_CONFIG_PWM_OUTPUT:
+               ret = pci1760_pwm_enable(dev, chan, false);
+               if (ret < 0)
+                       return ret;
+
+               hi_div = pci1760_pwm_ns_to_div(data[1], data[2]);
+               lo_div = pci1760_pwm_ns_to_div(data[3], data[4]);
+               if (hi_div < 0 || lo_div < 0)
+                       return -EINVAL;
+               if ((hi_div * PCI1760_PWM_TIMEBASE) != data[2] ||
+                   (lo_div * PCI1760_PWM_TIMEBASE) != data[4]) {
+                       data[2] = hi_div * PCI1760_PWM_TIMEBASE;
+                       data[4] = lo_div * PCI1760_PWM_TIMEBASE;
+                       return -EAGAIN;
+               }
+               ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_HI(chan), hi_div);
+               if (ret < 0)
+                       return ret;
+               ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_LO(chan), lo_div);
+               if (ret < 0)
+                       return ret;
+               break;
+       case INSN_CONFIG_GET_PWM_OUTPUT:
+               hi_div = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+                                    PCI1760_CMD_SET_PWM_HI(chan));
+               lo_div = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+                                    PCI1760_CMD_SET_PWM_LO(chan));
+               if (hi_div < 0 || lo_div < 0)
+                       return -ETIMEDOUT;
+
+               data[1] = hi_div * PCI1760_PWM_TIMEBASE;
+               data[2] = lo_div * PCI1760_PWM_TIMEBASE;
+               break;
+       case INSN_CONFIG_GET_PWM_STATUS:
+               ret = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+                                 PCI1760_CMD_ENA_PWM);
+               if (ret < 0)
+                       return ret;
+
+               data[1] = (ret & BIT(chan)) ? 1 : 0;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       return insn->n;
+}
+
+static void pci1760_reset(struct comedi_device *dev)
+{
+       int i;
+
+       /* disable interrupts (intcsr2 is read-only) */
+       outb(0, dev->iobase + PCI1760_INTCSR_REG(0));
+       outb(0, dev->iobase + PCI1760_INTCSR_REG(1));
+       outb(0, dev->iobase + PCI1760_INTCSR_REG(3));
+
+       /* disable counters */
+       pci1760_cmd(dev, PCI1760_CMD_ENA_CNT, 0);
+
+       /* disable overflow interrupts */
+       pci1760_cmd(dev, PCI1760_CMD_ENA_CNT_OFLOW, 0);
+
+       /* disable match */
+       pci1760_cmd(dev, PCI1760_CMD_ENA_CNT_MATCH, 0);
+
+       /* set match and counter reset values */
+       for (i = 0; i < 8; i++) {
+               pci1760_cmd(dev, PCI1760_CMD_SET_CNT_MATCH(i), 0x8000);
+               pci1760_cmd(dev, PCI1760_CMD_SET_CNT(i), 0x0000);
+       }
+
+       /* reset counters to reset values */
+       pci1760_cmd(dev, PCI1760_CMD_RST_CNT, 0xff);
+
+       /* set counter count edges */
+       pci1760_cmd(dev, PCI1760_CMD_SET_CNT_EDGE, 0);
+
+       /* disable input filters */
+       pci1760_cmd(dev, PCI1760_CMD_ENA_FILT, 0);
+
+       /* disable pattern matching */
+       pci1760_cmd(dev, PCI1760_CMD_ENA_PAT_MATCH, 0);
+
+       /* set pattern match value */
+       pci1760_cmd(dev, PCI1760_CMD_SET_PAT_MATCH, 0);
+}
+
+static int pci1760_auto_attach(struct comedi_device *dev,
+                              unsigned long context)
+{
+       struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+       struct comedi_subdevice *s;
+       int ret;
+
+       ret = comedi_pci_enable(dev);
+       if (ret)
+               return ret;
+       dev->iobase = pci_resource_start(pcidev, 0);
+
+       pci1760_reset(dev);
+
+       ret = comedi_alloc_subdevices(dev, 4);
+       if (ret)
+               return ret;
+
+       /* Digital Input subdevice */
+       s = &dev->subdevices[0];
+       s->type         = COMEDI_SUBD_DI;
+       s->subdev_flags = SDF_READABLE;
+       s->n_chan       = 8;
+       s->maxdata      = 1;
+       s->range_table  = &range_digital;
+       s->insn_bits    = pci1760_di_insn_bits;
+
+       /* Digital Output subdevice */
+       s = &dev->subdevices[1];
+       s->type         = COMEDI_SUBD_DO;
+       s->subdev_flags = SDF_WRITABLE;
+       s->n_chan       = 8;
+       s->maxdata      = 1;
+       s->range_table  = &range_digital;
+       s->insn_bits    = pci1760_do_insn_bits;
+
+       /* get the current state of the outputs */
+       ret = pci1760_cmd(dev, PCI1760_CMD_GET_DO, 0);
+       if (ret < 0)
+               return ret;
+       s->state        = ret;
+
+       /* PWM subdevice */
+       s = &dev->subdevices[2];
+       s->type         = COMEDI_SUBD_PWM;
+       s->subdev_flags = SDF_PWM_COUNTER;
+       s->n_chan       = 2;
+       s->insn_config  = pci1760_pwm_insn_config;
+
+       /* Counter subdevice */
+       s = &dev->subdevices[3];
+       s->type         = COMEDI_SUBD_UNUSED;
+
+       return 0;
+}
+
+static struct comedi_driver pci1760_driver = {
+       .driver_name    = "adv_pci1760",
+       .module         = THIS_MODULE,
+       .auto_attach    = pci1760_auto_attach,
+       .detach         = comedi_pci_detach,
+};
+
+static int pci1760_pci_probe(struct pci_dev *dev,
+                            const struct pci_device_id *id)
+{
+       return comedi_pci_auto_config(dev, &pci1760_driver, id->driver_data);
+}
+
+static const struct pci_device_id pci1760_pci_table[] = {
+       { PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1760) },
+       { 0 }
+};
+MODULE_DEVICE_TABLE(pci, pci1760_pci_table);
+
+static struct pci_driver pci1760_pci_driver = {
+       .name           = "adv_pci1760",
+       .id_table       = pci1760_pci_table,
+       .probe          = pci1760_pci_probe,
+       .remove         = comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(pci1760_driver, pci1760_pci_driver);
+
+MODULE_AUTHOR("Comedi http://www.comedi.org";);
+MODULE_DESCRIPTION("Comedi driver for Advantech PCI-1760");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c 
b/drivers/staging/comedi/drivers/adv_pci_dio.c
index f1b3c5a..05df1ec 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -9,13 +9,13 @@
 Driver: adv_pci_dio
 Description: Advantech PCI-1730, PCI-1733, PCI-1734, PCI-1735U,
        PCI-1736UP, PCI-1739U, PCI-1750, PCI-1751, PCI-1752,
-       PCI-1753/E, PCI-1754, PCI-1756, PCI-1760, PCI-1762
+       PCI-1753/E, PCI-1754, PCI-1756, PCI-1762
 Author: Michal Dobes <do...@tesnet.cz>
 Devices: [Advantech] PCI-1730 (adv_pci_dio), PCI-1733,
   PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U, PCI-1750,
   PCI-1751, PCI-1752, PCI-1753,
   PCI-1753+PCI-1753E, PCI-1754, PCI-1756,
-  PCI-1760, PCI-1762
+  PCI-1762
 Status: untested
 Updated: Mon, 09 Jan 2012 12:40:46 +0000
 
@@ -46,7 +46,6 @@ enum hw_cards_id {
        TYPE_PCI1752,
        TYPE_PCI1753, TYPE_PCI1753E,
        TYPE_PCI1754, TYPE_PCI1756,
-       TYPE_PCI1760,
        TYPE_PCI1762
 };
 
@@ -141,84 +140,6 @@ enum hw_io_access {
 #define PCI1762_ICR       6    /* W:   Interrupt control register */
 #define PCI1762_ISR       6    /* R:   Interrupt status register */
 
-/*  Advantech PCI-1760 registers */
-#define OMB0           0x0c    /* W:   Mailbox outgoing registers */
-#define OMB1           0x0d
-#define OMB2           0x0e
-#define OMB3           0x0f
-#define IMB0           0x1c    /* R:   Mailbox incoming registers */
-#define IMB1           0x1d
-#define IMB2           0x1e
-#define IMB3           0x1f
-#define INTCSR0                0x38    /* R/W: Interrupt control registers */
-#define INTCSR1                0x39
-#define INTCSR2                0x3a
-#define INTCSR3                0x3b
-
-/*  PCI-1760 mailbox commands */
-#define CMD_ClearIMB2          0x00    /* Clear IMB2 status and return actual
-                                        * DI status in IMB3 */
-#define CMD_SetRelaysOutput    0x01    /* Set relay output from OMB0 */
-#define CMD_GetRelaysStatus    0x02    /* Get relay status to IMB0 */
-#define CMD_ReadCurrentStatus  0x07    /* Read the current status of the
-                                        * register in OMB0, result in IMB0 */
-#define CMD_ReadFirmwareVersion        0x0e    /* Read the firmware ver., 
result in
-                                        * IMB1.IMB0 */
-#define CMD_ReadHardwareVersion        0x0f    /* Read the hardware ver., 
result in
-                                        * IMB1.IMB0 */
-#define CMD_EnableIDIFilters   0x20    /* Enable IDI filters based on bits in
-                                        * OMB0 */
-#define CMD_EnableIDIPatternMatch 0x21 /* Enable IDI pattern match based on
-                                        * bits in OMB0 */
-#define CMD_SetIDIPatternMatch 0x22    /* Enable IDI pattern match based on
-                                        * bits in OMB0 */
-#define CMD_EnableIDICounters  0x28    /* Enable IDI counters based on bits in
-                                        * OMB0 */
-#define CMD_ResetIDICounters   0x29    /* Reset IDI counters based on bits in
-                                        * OMB0 to its reset values */
-#define CMD_OverflowIDICounters        0x2a    /* Enable IDI counters overflow
-                                        * interrupts  based on bits in OMB0 */
-#define CMD_MatchIntIDICounters        0x2b    /* Enable IDI counters match 
value
-                                        * interrupts  based on bits in OMB0 */
-#define CMD_EdgeIDICounters    0x2c    /* Set IDI up counters count edge (bit=0
-                                        * - rising, =1 - falling) */
-#define CMD_GetIDICntCurValue  0x2f    /* Read IDI{OMB0} up counter current
-                                        * value */
-#define CMD_SetIDI0CntResetValue 0x40  /* Set IDI0 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntResetValue 0x41  /* Set IDI1 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntResetValue 0x42  /* Set IDI2 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntResetValue 0x43  /* Set IDI3 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntResetValue 0x44  /* Set IDI4 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntResetValue 0x45  /* Set IDI5 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntResetValue 0x46  /* Set IDI6 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntResetValue 0x47  /* Set IDI7 Counter Reset Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI0CntMatchValue 0x48  /* Set IDI0 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntMatchValue 0x49  /* Set IDI1 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntMatchValue 0x4a  /* Set IDI2 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntMatchValue 0x4b  /* Set IDI3 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntMatchValue 0x4c  /* Set IDI4 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntMatchValue 0x4d  /* Set IDI5 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntMatchValue 0x4e  /* Set IDI6 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntMatchValue 0x4f  /* Set IDI7 Counter Match Value
-                                        * 256*OMB1+OMB0 */
-
-#define OMBCMD_RETRY   0x03    /* 3 times try request before error */
-
 struct diosubd_data {
        int chans;              /*  num of chans */
        int addr;               /*  PCI address ofset */
@@ -365,14 +286,6 @@ static const struct dio_boardtype boardtypes[] = {
                .boardid        = { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
                .io_access      = IO_16b,
        },
-       [TYPE_PCI1760] = {
-               /* This card has its own 'attach' */
-               .name           = "pci1760",
-               .main_pci_region = 0,
-               .cardtype       = TYPE_PCI1760,
-               .nsubdevs       = 4,
-               .io_access      = IO_8b,
-       },
        [TYPE_PCI1762] = {
                .name           = "pci1762",
                .main_pci_region = PCIDIO_MAINREG,
@@ -387,21 +300,6 @@ static const struct dio_boardtype boardtypes[] = {
 
 struct pci_dio_private {
        char GlobalIrqEnabled;  /*  1= any IRQ source is enabled */
-       /*  PCI-1760 specific data */
-       unsigned char IDICntEnable;     /* counter's counting enable status */
-       unsigned char IDICntOverEnable; /* counter's overflow interrupts enable
-                                        * status */
-       unsigned char IDICntMatchEnable;        /* counter's match interrupts
-                                                * enable status */
-       unsigned char IDICntEdge;       /* counter's count edge value
-                                        * (bit=0 - rising, =1 - falling) */
-       unsigned short CntResValue[8];  /*  counters' reset value */
-       unsigned short CntMatchValue[8]; /*  counters' match interrupt value */
-       unsigned char IDIFiltersEn; /*  IDI's digital filters enable status */
-       unsigned char IDIPatMatchEn;    /*  IDI's pattern match enable status */
-       unsigned char IDIPatMatchValue; /*  IDI's pattern match value */
-       unsigned short IDIFiltrLow[8];  /*  IDI's filter value low signal */
-       unsigned short IDIFiltrHigh[8]; /*  IDI's filter value high signal */
 };
 
 /*
@@ -476,260 +374,6 @@ static int pci_dio_insn_bits_do_w(struct comedi_device 
*dev,
        return insn->n;
 }
 
-/*
-==============================================================================
-*/
-static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
-                                       unsigned char *omb, unsigned char *imb,
-                                       int repeats)
-{
-       int cnt, tout, ok = 0;
-
-       for (cnt = 0; cnt < repeats; cnt++) {
-               outb(omb[0], dev->iobase + OMB0);
-               outb(omb[1], dev->iobase + OMB1);
-               outb(omb[2], dev->iobase + OMB2);
-               outb(omb[3], dev->iobase + OMB3);
-               for (tout = 0; tout < 251; tout++) {
-                       imb[2] = inb(dev->iobase + IMB2);
-                       if (imb[2] == omb[2]) {
-                               imb[0] = inb(dev->iobase + IMB0);
-                               imb[1] = inb(dev->iobase + IMB1);
-                               imb[3] = inb(dev->iobase + IMB3);
-                               ok = 1;
-                               break;
-                       }
-                       udelay(1);
-               }
-               if (ok)
-                       return 0;
-       }
-
-       dev_err(dev->class_dev, "PCI-1760 mailbox request timeout!\n");
-       return -ETIME;
-}
-
-static int pci1760_clear_imb2(struct comedi_device *dev)
-{
-       unsigned char omb[4] = { 0x0, 0x0, CMD_ClearIMB2, 0x0 };
-       unsigned char imb[4];
-       /* check if imb2 is already clear */
-       if (inb(dev->iobase + IMB2) == CMD_ClearIMB2)
-               return 0;
-       return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-static int pci1760_mbxrequest(struct comedi_device *dev,
-                             unsigned char *omb, unsigned char *imb)
-{
-       if (omb[2] == CMD_ClearIMB2) {
-               dev_err(dev->class_dev,
-                       "bug! this function should not be used for 
CMD_ClearIMB2 command\n");
-               return -EINVAL;
-       }
-       if (inb(dev->iobase + IMB2) == omb[2]) {
-               int retval;
-
-               retval = pci1760_clear_imb2(dev);
-               if (retval < 0)
-                       return retval;
-       }
-       return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_bits_di(struct comedi_device *dev,
-                               struct comedi_subdevice *s,
-                               struct comedi_insn *insn, unsigned int *data)
-{
-       data[1] = inb(dev->iobase + IMB3);
-
-       return insn->n;
-}
-
-static int pci1760_insn_bits_do(struct comedi_device *dev,
-                               struct comedi_subdevice *s,
-                               struct comedi_insn *insn,
-                               unsigned int *data)
-{
-       int ret;
-       unsigned char omb[4] = {
-               0x00,
-               0x00,
-               CMD_SetRelaysOutput,
-               0x00
-       };
-       unsigned char imb[4];
-
-       if (comedi_dio_update_state(s, data)) {
-               omb[0] = s->state;
-               ret = pci1760_mbxrequest(dev, omb, imb);
-               if (!ret)
-                       return ret;
-       }
-
-       data[1] = s->state;
-
-       return insn->n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_read(struct comedi_device *dev,
-                                struct comedi_subdevice *s,
-                                struct comedi_insn *insn, unsigned int *data)
-{
-       int ret, n;
-       unsigned char omb[4] = {
-               CR_CHAN(insn->chanspec) & 0x07,
-               0x00,
-               CMD_GetIDICntCurValue,
-               0x00
-       };
-       unsigned char imb[4];
-
-       for (n = 0; n < insn->n; n++) {
-               ret = pci1760_mbxrequest(dev, omb, imb);
-               if (!ret)
-                       return ret;
-               data[n] = (imb[1] << 8) + imb[0];
-       }
-
-       return n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_write(struct comedi_device *dev,
-                                 struct comedi_subdevice *s,
-                                 struct comedi_insn *insn, unsigned int *data)
-{
-       struct pci_dio_private *devpriv = dev->private;
-       int ret;
-       unsigned char chan = CR_CHAN(insn->chanspec) & 0x07;
-       unsigned char bitmask = 1 << chan;
-       unsigned char omb[4] = {
-               data[0] & 0xff,
-               (data[0] >> 8) & 0xff,
-               CMD_SetIDI0CntResetValue + chan,
-               0x00
-       };
-       unsigned char imb[4];
-
-       /* Set reset value if different */
-       if (devpriv->CntResValue[chan] != (data[0] & 0xffff)) {
-               ret = pci1760_mbxrequest(dev, omb, imb);
-               if (!ret)
-                       return ret;
-               devpriv->CntResValue[chan] = data[0] & 0xffff;
-       }
-
-       omb[0] = bitmask;       /*  reset counter to it reset value */
-       omb[2] = CMD_ResetIDICounters;
-       ret = pci1760_mbxrequest(dev, omb, imb);
-       if (!ret)
-               return ret;
-
-       /*  start counter if it don't run */
-       if (!(bitmask & devpriv->IDICntEnable)) {
-               omb[0] = bitmask;
-               omb[2] = CMD_EnableIDICounters;
-               ret = pci1760_mbxrequest(dev, omb, imb);
-               if (!ret)
-                       return ret;
-               devpriv->IDICntEnable |= bitmask;
-       }
-       return 1;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_reset(struct comedi_device *dev)
-{
-       struct pci_dio_private *devpriv = dev->private;
-       int i;
-       unsigned char omb[4] = { 0x00, 0x00, 0x00, 0x00 };
-       unsigned char imb[4];
-
-       outb(0, dev->iobase + INTCSR0); /*  disable IRQ */
-       outb(0, dev->iobase + INTCSR1);
-       outb(0, dev->iobase + INTCSR2);
-       outb(0, dev->iobase + INTCSR3);
-       devpriv->GlobalIrqEnabled = 0;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_SetRelaysOutput;   /*  reset relay outputs */
-       pci1760_mbxrequest(dev, omb, imb);
-
-       omb[0] = 0x00;
-       omb[2] = CMD_EnableIDICounters; /*  disable IDI up counters */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDICntEnable = 0;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_OverflowIDICounters; /* disable counters overflow
-                                          * interrupts */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDICntOverEnable = 0;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_MatchIntIDICounters; /* disable counters match value
-                                          * interrupts */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDICntMatchEnable = 0;
-
-       omb[0] = 0x00;
-       omb[1] = 0x80;
-       for (i = 0; i < 8; i++) {       /*  set IDI up counters match value */
-               omb[2] = CMD_SetIDI0CntMatchValue + i;
-               pci1760_mbxrequest(dev, omb, imb);
-               devpriv->CntMatchValue[i] = 0x8000;
-       }
-
-       omb[0] = 0x00;
-       omb[1] = 0x00;
-       for (i = 0; i < 8; i++) {       /*  set IDI up counters reset value */
-               omb[2] = CMD_SetIDI0CntResetValue + i;
-               pci1760_mbxrequest(dev, omb, imb);
-               devpriv->CntResValue[i] = 0x0000;
-       }
-
-       omb[0] = 0xff;
-       omb[2] = CMD_ResetIDICounters; /* reset IDI up counters to reset
-                                       * values */
-       pci1760_mbxrequest(dev, omb, imb);
-
-       omb[0] = 0x00;
-       omb[2] = CMD_EdgeIDICounters;   /*  set IDI up counters count edge */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDICntEdge = 0x00;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_EnableIDIFilters;  /*  disable all digital in filters */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDIFiltersEn = 0x00;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_EnableIDIPatternMatch;     /*  disable pattern matching */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDIPatMatchEn = 0x00;
-
-       omb[0] = 0x00;
-       omb[2] = CMD_SetIDIPatternMatch;        /*  set pattern match value */
-       pci1760_mbxrequest(dev, omb, imb);
-       devpriv->IDIPatMatchValue = 0x00;
-
-       return 0;
-}
-
-/*
-==============================================================================
-*/
 static int pci_dio_reset(struct comedi_device *dev)
 {
        const struct dio_boardtype *board = dev->board_ptr;
@@ -821,9 +465,6 @@ static int pci_dio_reset(struct comedi_device *dev)
                outw(0, dev->iobase + PCI1756_IDO);     /*  clear outputs */
                outw(0, dev->iobase + PCI1756_IDO + 2);
                break;
-       case TYPE_PCI1760:
-               pci1760_reset(dev);
-               break;
        case TYPE_PCI1762:
                outw(0x0101, dev->iobase + PCI1762_ICR); /* disable & clear
                                                          * interrupts */
@@ -833,56 +474,6 @@ static int pci_dio_reset(struct comedi_device *dev)
        return 0;
 }
 
-/*
-==============================================================================
-*/
-static int pci1760_attach(struct comedi_device *dev)
-{
-       struct comedi_subdevice *s;
-
-       s = &dev->subdevices[0];
-       s->type = COMEDI_SUBD_DI;
-       s->subdev_flags = SDF_READABLE;
-       s->n_chan = 8;
-       s->maxdata = 1;
-       s->len_chanlist = 8;
-       s->range_table = &range_digital;
-       s->insn_bits = pci1760_insn_bits_di;
-
-       s = &dev->subdevices[1];
-       s->type = COMEDI_SUBD_DO;
-       s->subdev_flags = SDF_WRITABLE;
-       s->n_chan = 8;
-       s->maxdata = 1;
-       s->len_chanlist = 8;
-       s->range_table = &range_digital;
-       s->state = 0;
-       s->insn_bits = pci1760_insn_bits_do;
-
-       s = &dev->subdevices[2];
-       s->type = COMEDI_SUBD_TIMER;
-       s->subdev_flags = SDF_WRITABLE | SDF_LSAMPL;
-       s->n_chan = 2;
-       s->maxdata = 0xffffffff;
-       s->len_chanlist = 2;
-/*       s->insn_config=pci1760_insn_pwm_cfg; */
-
-       s = &dev->subdevices[3];
-       s->type = COMEDI_SUBD_COUNTER;
-       s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-       s->n_chan = 8;
-       s->maxdata = 0xffff;
-       s->len_chanlist = 8;
-       s->insn_read = pci1760_insn_cnt_read;
-       s->insn_write = pci1760_insn_cnt_write;
-/*       s->insn_config=pci1760_insn_cnt_cfg; */
-
-       return 0;
-}
-
-/*
-==============================================================================
-*/
 static int pci_dio_add_di(struct comedi_device *dev,
                          struct comedi_subdevice *s,
                          const struct diosubd_data *d)
@@ -1050,9 +641,6 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
                subdev++;
        }
 
-       if (board->cardtype == TYPE_PCI1760)
-               pci1760_attach(dev);
-
        pci_dio_reset(dev);
 
        return 0;
@@ -1094,7 +682,6 @@ static const struct pci_device_id adv_pci_dio_pci_table[] 
= {
        { PCI_VDEVICE(ADVANTECH, 0x1753), TYPE_PCI1753 },
        { PCI_VDEVICE(ADVANTECH, 0x1754), TYPE_PCI1754 },
        { PCI_VDEVICE(ADVANTECH, 0x1756), TYPE_PCI1756 },
-       { PCI_VDEVICE(ADVANTECH, 0x1760), TYPE_PCI1760 },
        { PCI_VDEVICE(ADVANTECH, 0x1762), TYPE_PCI1762 },
        { 0 }
 };
-- 
2.5.1

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