diff options
Diffstat (limited to 'kernel/drivers/staging/comedi/drivers/addi_apci_1516.c')
| -rw-r--r-- | kernel/drivers/staging/comedi/drivers/addi_apci_1516.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/kernel/drivers/staging/comedi/drivers/addi_apci_1516.c b/kernel/drivers/staging/comedi/drivers/addi_apci_1516.c new file mode 100644 index 000000000..9c516d1fe --- /dev/null +++ b/kernel/drivers/staging/comedi/drivers/addi_apci_1516.c @@ -0,0 +1,225 @@ +/* + * 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. + */ + +#include <linux/module.h> + +#include "../comedi_pci.h" +#include "addi_watchdog.h" + +/* + * 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 + +enum apci1516_boardid { + BOARD_APCI1016, + BOARD_APCI1516, + BOARD_APCI2016, +}; + +struct apci1516_boardinfo { + const char *name; + int di_nchan; + int do_nchan; + int has_wdog; +}; + +static const struct apci1516_boardinfo apci1516_boardtypes[] = { + [BOARD_APCI1016] = { + .name = "apci1016", + .di_nchan = 16, + }, + [BOARD_APCI1516] = { + .name = "apci1516", + .di_nchan = 8, + .do_nchan = 8, + .has_wdog = 1, + }, + [BOARD_APCI2016] = { + .name = "apci2016", + .do_nchan = 16, + .has_wdog = 1, + }, +}; + +struct apci1516_private { + unsigned long wdog_iobase; +}; + +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) +{ + s->state = inw(dev->iobase + APCI1516_DO_REG); + + if (comedi_dio_update_state(s, data)) + outw(s->state, dev->iobase + APCI1516_DO_REG); + + data[1] = s->state; + + return insn->n; +} + +static int apci1516_reset(struct comedi_device *dev) +{ + const struct apci1516_boardinfo *this_board = dev->board_ptr; + struct apci1516_private *devpriv = dev->private; + + if (!this_board->has_wdog) + return 0; + + outw(0x0, dev->iobase + APCI1516_DO_REG); + + addi_watchdog_reset(devpriv->wdog_iobase); + + return 0; +} + +static int apci1516_auto_attach(struct comedi_device *dev, + unsigned long context) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + const struct apci1516_boardinfo *this_board = NULL; + struct apci1516_private *devpriv; + struct comedi_subdevice *s; + int ret; + + if (context < ARRAY_SIZE(apci1516_boardtypes)) + this_board = &apci1516_boardtypes[context]; + if (!this_board) + return -ENODEV; + dev->board_ptr = this_board; + dev->board_name = this_board->name; + + devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); + if (!devpriv) + return -ENOMEM; + + ret = comedi_pci_enable(dev); + 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_WRITABLE; + 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) { + ret = addi_watchdog_init(s, devpriv->wdog_iobase); + if (ret) + return ret; + } else { + s->type = COMEDI_SUBD_UNUSED; + } + + apci1516_reset(dev); + return 0; +} + +static void apci1516_detach(struct comedi_device *dev) +{ + if (dev->iobase) + apci1516_reset(dev); + comedi_pci_detach(dev); +} + +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 *id) +{ + return comedi_pci_auto_config(dev, &apci1516_driver, id->driver_data); +} + +static const struct pci_device_id apci1516_pci_table[] = { + { PCI_VDEVICE(ADDIDATA, 0x1000), BOARD_APCI1016 }, + { PCI_VDEVICE(ADDIDATA, 0x1001), BOARD_APCI1516 }, + { PCI_VDEVICE(ADDIDATA, 0x1002), BOARD_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 = comedi_pci_auto_unconfig, +}; +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_LICENSE("GPL"); |