diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/addi_apci_16xx.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/addi_apci_16xx.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c new file mode 100644 index 000000000..c63133a12 --- /dev/null +++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c @@ -0,0 +1,187 @@ +/* + * addi_apci_16xx.c + * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. + * Project manager: S. Weber + * + * 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" + +/* + * Register I/O map + */ +#define APCI16XX_IN_REG(x) (((x) * 4) + 0x08) +#define APCI16XX_OUT_REG(x) (((x) * 4) + 0x14) +#define APCI16XX_DIR_REG(x) (((x) * 4) + 0x20) + +enum apci16xx_boardid { + BOARD_APCI1648, + BOARD_APCI1696, +}; + +struct apci16xx_boardinfo { + const char *name; + int n_chan; +}; + +static const struct apci16xx_boardinfo apci16xx_boardtypes[] = { + [BOARD_APCI1648] = { + .name = "apci1648", + .n_chan = 48, /* 2 subdevices */ + }, + [BOARD_APCI1696] = { + .name = "apci1696", + .n_chan = 96, /* 3 subdevices */ + }, +}; + +static int apci16xx_insn_config(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int mask; + int ret; + + if (chan < 8) + mask = 0x000000ff; + else if (chan < 16) + mask = 0x0000ff00; + else if (chan < 24) + mask = 0x00ff0000; + else + mask = 0xff000000; + + ret = comedi_dio_insn_config(dev, s, insn, data, mask); + if (ret) + return ret; + + outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(s->index)); + + return insn->n; +} + +static int apci16xx_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)) + outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index)); + + data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index)); + + return insn->n; +} + +static int apci16xx_auto_attach(struct comedi_device *dev, + unsigned long context) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + const struct apci16xx_boardinfo *board = NULL; + struct comedi_subdevice *s; + unsigned int n_subdevs; + unsigned int last; + int i; + int ret; + + if (context < ARRAY_SIZE(apci16xx_boardtypes)) + board = &apci16xx_boardtypes[context]; + if (!board) + return -ENODEV; + dev->board_ptr = board; + dev->board_name = board->name; + + ret = comedi_pci_enable(dev); + if (ret) + return ret; + + dev->iobase = pci_resource_start(pcidev, 0); + + /* + * Work out the nubmer of subdevices needed to support all the + * digital i/o channels on the board. Each subdevice supports + * up to 32 channels. + */ + n_subdevs = board->n_chan / 32; + if ((n_subdevs * 32) < board->n_chan) { + last = board->n_chan - (n_subdevs * 32); + n_subdevs++; + } else { + last = 0; + } + + ret = comedi_alloc_subdevices(dev, n_subdevs); + if (ret) + return ret; + + /* Initialize the TTL digital i/o subdevices */ + for (i = 0; i < n_subdevs; i++) { + s = &dev->subdevices[i]; + s->type = COMEDI_SUBD_DIO; + s->subdev_flags = SDF_WRITABLE | SDF_READABLE; + s->n_chan = ((i * 32) < board->n_chan) ? 32 : last; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_config = apci16xx_insn_config; + s->insn_bits = apci16xx_dio_insn_bits; + + /* Default all channels to inputs */ + s->io_bits = 0; + outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(i)); + } + + return 0; +} + +static struct comedi_driver apci16xx_driver = { + .driver_name = "addi_apci_16xx", + .module = THIS_MODULE, + .auto_attach = apci16xx_auto_attach, + .detach = comedi_pci_detach, +}; + +static int apci16xx_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + return comedi_pci_auto_config(dev, &apci16xx_driver, id->driver_data); +} + +static const struct pci_device_id apci16xx_pci_table[] = { + { PCI_VDEVICE(ADDIDATA, 0x1009), BOARD_APCI1648 }, + { PCI_VDEVICE(ADDIDATA, 0x100a), BOARD_APCI1696 }, + { 0 } +}; +MODULE_DEVICE_TABLE(pci, apci16xx_pci_table); + +static struct pci_driver apci16xx_pci_driver = { + .name = "addi_apci_16xx", + .id_table = apci16xx_pci_table, + .probe = apci16xx_pci_probe, + .remove = comedi_pci_auto_unconfig, +}; +module_comedi_pci_driver(apci16xx_driver, apci16xx_pci_driver); + +MODULE_DESCRIPTION("ADDI-DATA APCI-1648/1696, TTL I/O boards"); +MODULE_AUTHOR("Comedi http://www.comedi.org"); +MODULE_LICENSE("GPL"); |