diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_670x.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_670x.c | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c deleted file mode 100644 index c197e47486be..000000000000 --- a/drivers/staging/comedi/drivers/ni_670x.c +++ /dev/null @@ -1,282 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Comedi driver for NI 670x devices - * - * COMEDI - Linux Control and Measurement Device Interface - * Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> - */ - -/* - * Driver: ni_670x - * Description: National Instruments 670x - * Author: Bart Joris <bjoris@advalvas.be> - * Updated: Wed, 11 Dec 2002 18:25:35 -0800 - * Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704 - * Status: unknown - * - * Commands are not supported. - * - * Manuals: - * 322110a.pdf PCI/PXI-6704 User Manual - * 322110b.pdf PCI/PXI-6703/6704 User Manual - */ - -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/slab.h> - -#include "../comedi_pci.h" - -#define AO_VALUE_OFFSET 0x00 -#define AO_CHAN_OFFSET 0x0c -#define AO_STATUS_OFFSET 0x10 -#define AO_CONTROL_OFFSET 0x10 -#define DIO_PORT0_DIR_OFFSET 0x20 -#define DIO_PORT0_DATA_OFFSET 0x24 -#define DIO_PORT1_DIR_OFFSET 0x28 -#define DIO_PORT1_DATA_OFFSET 0x2c -#define MISC_STATUS_OFFSET 0x14 -#define MISC_CONTROL_OFFSET 0x14 - -enum ni_670x_boardid { - BOARD_PCI6703, - BOARD_PXI6704, - BOARD_PCI6704, -}; - -struct ni_670x_board { - const char *name; - unsigned short ao_chans; -}; - -static const struct ni_670x_board ni_670x_boards[] = { - [BOARD_PCI6703] = { - .name = "PCI-6703", - .ao_chans = 16, - }, - [BOARD_PXI6704] = { - .name = "PXI-6704", - .ao_chans = 32, - }, - [BOARD_PCI6704] = { - .name = "PCI-6704", - .ao_chans = 32, - }, -}; - -struct ni_670x_private { - int boardtype; - int dio; -}; - -static int ni_670x_ao_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int val = s->readback[chan]; - int i; - - /* - * Channel number mapping: - * - * NI 6703/ NI 6704 | NI 6704 Only - * ------------------------------- - * vch(0) : 0 | ich(16) : 1 - * vch(1) : 2 | ich(17) : 3 - * ... | ... - * vch(15) : 30 | ich(31) : 31 - */ - for (i = 0; i < insn->n; i++) { - val = data[i]; - /* First write in channel register which channel to use */ - writel(((chan & 15) << 1) | ((chan & 16) >> 4), - dev->mmio + AO_CHAN_OFFSET); - /* write channel value */ - writel(val, dev->mmio + AO_VALUE_OFFSET); - } - s->readback[chan] = val; - - return insn->n; -} - -static int ni_670x_dio_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - if (comedi_dio_update_state(s, data)) - writel(s->state, dev->mmio + DIO_PORT0_DATA_OFFSET); - - data[1] = readl(dev->mmio + DIO_PORT0_DATA_OFFSET); - - return insn->n; -} - -static int ni_670x_dio_insn_config(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - int ret; - - ret = comedi_dio_insn_config(dev, s, insn, data, 0); - if (ret) - return ret; - - writel(s->io_bits, dev->mmio + DIO_PORT0_DIR_OFFSET); - - return insn->n; -} - -/* ripped from mite.h and mite_setup2() to avoid mite dependency */ -#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */ -#define WENAB BIT(7) /* window enable */ - -static int ni_670x_mite_init(struct pci_dev *pcidev) -{ - void __iomem *mite_base; - u32 main_phys_addr; - - /* ioremap the MITE registers (BAR 0) temporarily */ - mite_base = pci_ioremap_bar(pcidev, 0); - if (!mite_base) - return -ENOMEM; - - /* set data window to main registers (BAR 1) */ - main_phys_addr = pci_resource_start(pcidev, 1); - writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR); - - /* finished with MITE registers */ - iounmap(mite_base); - return 0; -} - -static int ni_670x_auto_attach(struct comedi_device *dev, - unsigned long context) -{ - struct pci_dev *pcidev = comedi_to_pci_dev(dev); - const struct ni_670x_board *board = NULL; - struct ni_670x_private *devpriv; - struct comedi_subdevice *s; - int ret; - int i; - - if (context < ARRAY_SIZE(ni_670x_boards)) - board = &ni_670x_boards[context]; - if (!board) - 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; - - ret = ni_670x_mite_init(pcidev); - if (ret) - return ret; - - dev->mmio = pci_ioremap_bar(pcidev, 1); - if (!dev->mmio) - return -ENOMEM; - - ret = comedi_alloc_subdevices(dev, 2); - if (ret) - return ret; - - s = &dev->subdevices[0]; - /* analog output subdevice */ - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->ao_chans; - s->maxdata = 0xffff; - if (s->n_chan == 32) { - const struct comedi_lrange **range_table_list; - - range_table_list = kmalloc_array(32, - sizeof(struct comedi_lrange *), - GFP_KERNEL); - if (!range_table_list) - return -ENOMEM; - s->range_table_list = range_table_list; - for (i = 0; i < 16; i++) { - range_table_list[i] = &range_bipolar10; - range_table_list[16 + i] = &range_0_20mA; - } - } else { - s->range_table = &range_bipolar10; - } - s->insn_write = ni_670x_ao_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - s = &dev->subdevices[1]; - /* digital i/o subdevice */ - s->type = COMEDI_SUBD_DIO; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = 8; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = ni_670x_dio_insn_bits; - s->insn_config = ni_670x_dio_insn_config; - - /* Config of misc registers */ - writel(0x10, dev->mmio + MISC_CONTROL_OFFSET); - /* Config of ao registers */ - writel(0x00, dev->mmio + AO_CONTROL_OFFSET); - - return 0; -} - -static void ni_670x_detach(struct comedi_device *dev) -{ - struct comedi_subdevice *s; - - comedi_pci_detach(dev); - if (dev->n_subdevices) { - s = &dev->subdevices[0]; - if (s) - kfree(s->range_table_list); - } -} - -static struct comedi_driver ni_670x_driver = { - .driver_name = "ni_670x", - .module = THIS_MODULE, - .auto_attach = ni_670x_auto_attach, - .detach = ni_670x_detach, -}; - -static int ni_670x_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data); -} - -static const struct pci_device_id ni_670x_pci_table[] = { - { PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 }, - { PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 }, - { PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, ni_670x_pci_table); - -static struct pci_driver ni_670x_pci_driver = { - .name = "ni_670x", - .id_table = ni_670x_pci_table, - .probe = ni_670x_pci_probe, - .remove = comedi_pci_auto_unconfig, -}; -module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver); - -MODULE_AUTHOR("Comedi https://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); -MODULE_LICENSE("GPL"); |