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Diffstat (limited to 'drivers/staging/comedi/drivers/mf6x4.c')
-rw-r--r--drivers/staging/comedi/drivers/mf6x4.c311
1 files changed, 0 insertions, 311 deletions
diff --git a/drivers/staging/comedi/drivers/mf6x4.c b/drivers/staging/comedi/drivers/mf6x4.c
deleted file mode 100644
index 9da8dd748078..000000000000
--- a/drivers/staging/comedi/drivers/mf6x4.c
+++ /dev/null
@@ -1,311 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * comedi/drivers/mf6x4.c
- * Driver for Humusoft MF634 and MF624 Data acquisition cards
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- */
-/*
- * Driver: mf6x4
- * Description: Humusoft MF634 and MF624 Data acquisition card driver
- * Devices: [Humusoft] MF634 (mf634), MF624 (mf624)
- * Author: Rostislav Lisovy <lisovy@gmail.com>
- * Status: works
- * Updated:
- * Configuration Options: none
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pci.h"
-
-/* Registers present in BAR0 memory region */
-#define MF624_GPIOC_REG 0x54
-
-#define MF6X4_GPIOC_EOLC BIT(17) /* End Of Last Conversion */
-#define MF6X4_GPIOC_LDAC BIT(23) /* Load DACs */
-#define MF6X4_GPIOC_DACEN BIT(26)
-
-/* BAR1 registers */
-#define MF6X4_ADDATA_REG 0x00
-#define MF6X4_ADCTRL_REG 0x00
-#define MF6X4_ADCTRL_CHAN(x) BIT(chan)
-#define MF6X4_DIN_REG 0x10
-#define MF6X4_DIN_MASK 0xff
-#define MF6X4_DOUT_REG 0x10
-#define MF6X4_ADSTART_REG 0x20
-#define MF6X4_DAC_REG(x) (0x20 + ((x) * 2))
-
-/* BAR2 registers */
-#define MF634_GPIOC_REG 0x68
-
-enum mf6x4_boardid {
- BOARD_MF634,
- BOARD_MF624,
-};
-
-struct mf6x4_board {
- const char *name;
- /* We need to keep track of the order of BARs used by the cards */
- unsigned int bar_nums[3];
-};
-
-static const struct mf6x4_board mf6x4_boards[] = {
- [BOARD_MF634] = {
- .name = "mf634",
- .bar_nums = {0, 2, 3},
- },
- [BOARD_MF624] = {
- .name = "mf624",
- .bar_nums = {0, 2, 4},
- },
-};
-
-struct mf6x4_private {
- /*
- * Documentation for both MF634 and MF624 describes registers
- * present in BAR0, 1 and 2 regions.
- * The real (i.e. in HW) BAR numbers are different for MF624
- * and MF634 yet we will call them 0, 1, 2
- */
- void __iomem *bar0_mem;
- void __iomem *bar2_mem;
-
- /*
- * This configuration register has the same function and fields
- * for both cards however it lies in different BARs on different
- * offsets -- this variable makes the access easier
- */
- void __iomem *gpioc_reg;
-};
-
-static int mf6x4_di_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- data[1] = ioread16(dev->mmio + MF6X4_DIN_REG) & MF6X4_DIN_MASK;
-
- return insn->n;
-}
-
-static int mf6x4_do_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- if (comedi_dio_update_state(s, data))
- iowrite16(s->state, dev->mmio + MF6X4_DOUT_REG);
-
- data[1] = s->state;
-
- return insn->n;
-}
-
-static int mf6x4_ai_eoc(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned long context)
-{
- struct mf6x4_private *devpriv = dev->private;
- unsigned int status;
-
- /* EOLC goes low at end of conversion. */
- status = ioread32(devpriv->gpioc_reg);
- if ((status & MF6X4_GPIOC_EOLC) == 0)
- return 0;
- return -EBUSY;
-}
-
-static int mf6x4_ai_insn_read(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- unsigned int chan = CR_CHAN(insn->chanspec);
- unsigned int d;
- int ret;
- int i;
-
- /* Set the ADC channel number in the scan list */
- iowrite16(MF6X4_ADCTRL_CHAN(chan), dev->mmio + MF6X4_ADCTRL_REG);
-
- for (i = 0; i < insn->n; i++) {
- /* Trigger ADC conversion by reading ADSTART */
- ioread16(dev->mmio + MF6X4_ADSTART_REG);
-
- ret = comedi_timeout(dev, s, insn, mf6x4_ai_eoc, 0);
- if (ret)
- return ret;
-
- /* Read the actual value */
- d = ioread16(dev->mmio + MF6X4_ADDATA_REG);
- d &= s->maxdata;
- /* munge the 2's complement data to offset binary */
- data[i] = comedi_offset_munge(s, d);
- }
-
- iowrite16(0x0, dev->mmio + MF6X4_ADCTRL_REG);
-
- return insn->n;
-}
-
-static int mf6x4_ao_insn_write(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- struct mf6x4_private *devpriv = dev->private;
- unsigned int chan = CR_CHAN(insn->chanspec);
- unsigned int val = s->readback[chan];
- unsigned int gpioc;
- int i;
-
- /* Enable instantaneous update of converters outputs + Enable DACs */
- gpioc = ioread32(devpriv->gpioc_reg);
- iowrite32((gpioc & ~MF6X4_GPIOC_LDAC) | MF6X4_GPIOC_DACEN,
- devpriv->gpioc_reg);
-
- for (i = 0; i < insn->n; i++) {
- val = data[i];
- iowrite16(val, dev->mmio + MF6X4_DAC_REG(chan));
- }
- s->readback[chan] = val;
-
- return insn->n;
-}
-
-static int mf6x4_auto_attach(struct comedi_device *dev, unsigned long context)
-{
- struct pci_dev *pcidev = comedi_to_pci_dev(dev);
- const struct mf6x4_board *board = NULL;
- struct mf6x4_private *devpriv;
- struct comedi_subdevice *s;
- int ret;
-
- if (context < ARRAY_SIZE(mf6x4_boards))
- board = &mf6x4_boards[context];
- else
- return -ENODEV;
-
- dev->board_ptr = board;
- dev->board_name = board->name;
-
- ret = comedi_pci_enable(dev);
- if (ret)
- return ret;
-
- devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
- if (!devpriv)
- return -ENOMEM;
-
- devpriv->bar0_mem = pci_ioremap_bar(pcidev, board->bar_nums[0]);
- if (!devpriv->bar0_mem)
- return -ENODEV;
-
- dev->mmio = pci_ioremap_bar(pcidev, board->bar_nums[1]);
- if (!dev->mmio)
- return -ENODEV;
-
- devpriv->bar2_mem = pci_ioremap_bar(pcidev, board->bar_nums[2]);
- if (!devpriv->bar2_mem)
- return -ENODEV;
-
- if (board == &mf6x4_boards[BOARD_MF634])
- devpriv->gpioc_reg = devpriv->bar2_mem + MF634_GPIOC_REG;
- else
- devpriv->gpioc_reg = devpriv->bar0_mem + MF624_GPIOC_REG;
-
- ret = comedi_alloc_subdevices(dev, 4);
- if (ret)
- return ret;
-
- /* Analog Input subdevice */
- s = &dev->subdevices[0];
- s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE | SDF_GROUND;
- s->n_chan = 8;
- s->maxdata = 0x3fff;
- s->range_table = &range_bipolar10;
- s->insn_read = mf6x4_ai_insn_read;
-
- /* Analog Output subdevice */
- s = &dev->subdevices[1];
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = 8;
- s->maxdata = 0x3fff;
- s->range_table = &range_bipolar10;
- s->insn_write = mf6x4_ao_insn_write;
-
- ret = comedi_alloc_subdev_readback(s);
- if (ret)
- return ret;
-
- /* Digital Input subdevice */
- s = &dev->subdevices[2];
- 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 = mf6x4_di_insn_bits;
-
- /* Digital Output subdevice */
- s = &dev->subdevices[3];
- 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 = mf6x4_do_insn_bits;
-
- return 0;
-}
-
-static void mf6x4_detach(struct comedi_device *dev)
-{
- struct mf6x4_private *devpriv = dev->private;
-
- if (devpriv) {
- if (devpriv->bar0_mem)
- iounmap(devpriv->bar0_mem);
- if (devpriv->bar2_mem)
- iounmap(devpriv->bar2_mem);
- }
- comedi_pci_detach(dev);
-}
-
-static struct comedi_driver mf6x4_driver = {
- .driver_name = "mf6x4",
- .module = THIS_MODULE,
- .auto_attach = mf6x4_auto_attach,
- .detach = mf6x4_detach,
-};
-
-static int mf6x4_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
- return comedi_pci_auto_config(dev, &mf6x4_driver, id->driver_data);
-}
-
-static const struct pci_device_id mf6x4_pci_table[] = {
- { PCI_VDEVICE(HUMUSOFT, 0x0634), BOARD_MF634 },
- { PCI_VDEVICE(HUMUSOFT, 0x0624), BOARD_MF624 },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, mf6x4_pci_table);
-
-static struct pci_driver mf6x4_pci_driver = {
- .name = "mf6x4",
- .id_table = mf6x4_pci_table,
- .probe = mf6x4_pci_probe,
- .remove = comedi_pci_auto_unconfig,
-};
-
-module_comedi_pci_driver(mf6x4_driver, mf6x4_pci_driver);
-
-MODULE_AUTHOR("Rostislav Lisovy <lisovy@gmail.com>");
-MODULE_DESCRIPTION("Comedi MF634 and MF624 DAQ cards driver");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-12 17:19:19 +0000