diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/addi_apci_1516.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/addi_apci_1516.c | 348 |
1 files changed, 344 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/addi_apci_1516.c b/drivers/staging/comedi/drivers/addi_apci_1516.c index a12e2f421370..8fef04b4d197 100644 --- a/drivers/staging/comedi/drivers/addi_apci_1516.c +++ b/drivers/staging/comedi/drivers/addi_apci_1516.c @@ -1,9 +1,349 @@ -#define CONFIG_APCI_1516 1 +/* + * addi_apci_1516.c + * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. + * Project manager: Eric Stolz + * + * ADDI-DATA GmbH + * Dieselstrasse 3 + * D-77833 Ottersweier + * Tel: +19(0)7223/9493-0 + * Fax: +49(0)7223/9493-92 + * http://www.addi-data.com + * info@addi-data.com + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * You should also find the complete GPL in the COPYING file accompanying + * this source code. + */ -#define ADDIDATA_DRIVER_NAME "addi_apci_1516" +#include "../comedidev.h" +#include "comedi_fc.h" -#include "addi-data/addi_common.c" +/* + * PCI device ids supported by this driver + */ +#define PCI_DEVICE_ID_APCI1016 0x1000 +#define PCI_DEVICE_ID_APCI1516 0x1001 +#define PCI_DEVICE_ID_APCI2016 0x1002 +/* + * PCI bar 1 I/O Register map - Digital input/output + */ +#define APCI1516_DI_REG 0x00 +#define APCI1516_DO_REG 0x04 + +/* + * PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016) + */ +#define APCI1516_WDOG_REG 0x00 +#define APCI1516_WDOG_RELOAD_REG 0x04 +#define APCI1516_WDOG_CTRL_REG 0x0c +#define APCI1516_WDOG_CTRL_ENABLE (1 << 0) +#define APCI1516_WDOG_CTRL_SW_TRIG (1 << 9) +#define APCI1516_WDOG_STATUS_REG 0x10 +#define APCI1516_WDOG_STATUS_ENABLED (1 << 0) +#define APCI1516_WDOG_STATUS_SW_TRIG (1 << 1) + +struct apci1516_boardinfo { + const char *name; + unsigned short device; + int di_nchan; + int do_nchan; + int has_wdog; +}; + +static const struct apci1516_boardinfo apci1516_boardtypes[] = { + { + .name = "apci1016", + .device = PCI_DEVICE_ID_APCI1016, + .di_nchan = 16, + }, { + .name = "apci1516", + .device = PCI_DEVICE_ID_APCI1516, + .di_nchan = 8, + .do_nchan = 8, + .has_wdog = 1, + }, { + .name = "apci2016", + .device = PCI_DEVICE_ID_APCI2016, + .do_nchan = 16, + .has_wdog = 1, + }, +}; + +struct apci1516_private { + unsigned long wdog_iobase; + unsigned int ctrl; +}; + +static int apci1516_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + data[1] = inw(dev->iobase + APCI1516_DI_REG); + + return insn->n; +} + +static int apci1516_do_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + unsigned int mask = data[0]; + unsigned int bits = data[1]; + + s->state = inw(dev->iobase + APCI1516_DO_REG); + if (mask) { + s->state &= ~mask; + s->state |= (bits & mask); + + outw(s->state, dev->iobase + APCI1516_DO_REG); + } + + data[1] = s->state; + + return insn->n; +} + +/* + * The watchdog subdevice is configured with two INSN_CONFIG instructions: + * + * Enable the watchdog and set the reload timeout: + * data[0] = INSN_CONFIG_ARM + * data[1] = timeout reload value + * + * Disable the watchdog: + * data[0] = INSN_CONFIG_DISARM + */ +static int apci1516_wdog_insn_config(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1516_private *devpriv = dev->private; + unsigned int reload; + + switch (data[0]) { + case INSN_CONFIG_ARM: + devpriv->ctrl = APCI1516_WDOG_CTRL_ENABLE; + reload = data[1] & s->maxdata; + outw(reload, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG); + + /* Time base is 20ms, let the user know the timeout */ + dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n", + 20 * reload + 20); + break; + case INSN_CONFIG_DISARM: + devpriv->ctrl = 0; + break; + default: + return -EINVAL; + } + + outw(devpriv->ctrl, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG); + + return insn->n; +} + +static int apci1516_wdog_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1516_private *devpriv = dev->private; + int i; + + if (devpriv->ctrl == 0) { + dev_warn(dev->class_dev, "watchdog is disabled\n"); + return -EINVAL; + } + + /* "ping" the watchdog */ + for (i = 0; i < insn->n; i++) { + outw(devpriv->ctrl | APCI1516_WDOG_CTRL_SW_TRIG, + devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG); + } + + return insn->n; +} + +static int apci1516_wdog_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1516_private *devpriv = dev->private; + int i; + + for (i = 0; i < insn->n; i++) + data[i] = inw(devpriv->wdog_iobase + APCI1516_WDOG_STATUS_REG); + + return insn->n; +} + +static int apci1516_reset(struct comedi_device *dev) +{ + const struct apci1516_boardinfo *this_board = comedi_board(dev); + struct apci1516_private *devpriv = dev->private; + + if (!this_board->has_wdog) + return 0; + + outw(0x0, dev->iobase + APCI1516_DO_REG); + outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG); + outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG); + + return 0; +} + +static const void *apci1516_find_boardinfo(struct comedi_device *dev, + struct pci_dev *pcidev) +{ + const struct apci1516_boardinfo *this_board; + int i; + + for (i = 0; i < dev->driver->num_names; i++) { + this_board = &apci1516_boardtypes[i]; + if (this_board->device == pcidev->device) + return this_board; + } + return NULL; +} + +static int apci1516_auto_attach(struct comedi_device *dev, + unsigned long context_unused) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + const struct apci1516_boardinfo *this_board; + struct apci1516_private *devpriv; + struct comedi_subdevice *s; + int ret; + + this_board = apci1516_find_boardinfo(dev, pcidev); + if (!this_board) + return -ENODEV; + dev->board_ptr = this_board; + dev->board_name = this_board->name; + + devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); + if (!devpriv) + return -ENOMEM; + dev->private = devpriv; + + ret = comedi_pci_enable(pcidev, dev->board_name); + if (ret) + return ret; + + dev->iobase = pci_resource_start(pcidev, 1); + devpriv->wdog_iobase = pci_resource_start(pcidev, 2); + + ret = comedi_alloc_subdevices(dev, 3); + if (ret) + return ret; + + /* Initialize the digital input subdevice */ + s = &dev->subdevices[0]; + if (this_board->di_nchan) { + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = this_board->di_nchan; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = apci1516_di_insn_bits; + } else { + s->type = COMEDI_SUBD_UNUSED; + } + + /* Initialize the digital output subdevice */ + s = &dev->subdevices[1]; + if (this_board->do_nchan) { + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITEABLE; + s->n_chan = this_board->do_nchan; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = apci1516_do_insn_bits; + } else { + s->type = COMEDI_SUBD_UNUSED; + } + + /* Initialize the watchdog subdevice */ + s = &dev->subdevices[2]; + if (this_board->has_wdog) { + s->type = COMEDI_SUBD_TIMER; + s->subdev_flags = SDF_WRITEABLE; + s->n_chan = 1; + s->maxdata = 0xff; + s->insn_write = apci1516_wdog_insn_write; + s->insn_read = apci1516_wdog_insn_read; + s->insn_config = apci1516_wdog_insn_config; + } else { + s->type = COMEDI_SUBD_UNUSED; + } + + apci1516_reset(dev); + return 0; +} + +static void apci1516_detach(struct comedi_device *dev) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + + if (dev->iobase) { + apci1516_reset(dev); + comedi_pci_disable(pcidev); + } +} + +static struct comedi_driver apci1516_driver = { + .driver_name = "addi_apci_1516", + .module = THIS_MODULE, + .auto_attach = apci1516_auto_attach, + .detach = apci1516_detach, +}; + +static int apci1516_pci_probe(struct pci_dev *dev, + const struct pci_device_id *ent) +{ + return comedi_pci_auto_config(dev, &apci1516_driver); +} + +static void apci1516_pci_remove(struct pci_dev *dev) +{ + comedi_pci_auto_unconfig(dev); +} + +static DEFINE_PCI_DEVICE_TABLE(apci1516_pci_table) = { + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1016) }, + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1516) }, + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI2016) }, + { 0 } +}; +MODULE_DEVICE_TABLE(pci, apci1516_pci_table); + +static struct pci_driver apci1516_pci_driver = { + .name = "addi_apci_1516", + .id_table = apci1516_pci_table, + .probe = apci1516_pci_probe, + .remove = apci1516_pci_remove, +}; +module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver); + +MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards"); MODULE_AUTHOR("Comedi http://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); MODULE_LICENSE("GPL"); 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