diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/addi_apci_16xx.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/addi_apci_16xx.c | 257 |
1 files changed, 215 insertions, 42 deletions
diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c index ab9a96ac8180..e51f80001363 100644 --- a/drivers/staging/comedi/drivers/addi_apci_16xx.c +++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c @@ -1,49 +1,227 @@ +/* + * 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. + * + * 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. + */ + +#include <linux/pci.h> + #include "../comedidev.h" -#include "comedi_fc.h" -#include "amcc_s5933.h" -#include "addi-data/addi_common.h" +/* + * PCI device ids supported by this driver + */ +#define PCI_DEVICE_ID_APCI1648 0x1009 +#define PCI_DEVICE_ID_APCI1696 0x100a -#include "addi-data/addi_eeprom.c" -#include "addi-data/hwdrv_apci16xx.c" -#include "addi-data/addi_common.c" +/* + * 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) -static const struct addi_board apci16xx_boardtypes[] = { +struct apci16xx_boardinfo { + const char *name; + unsigned short vendor; + unsigned short device; + int n_chan; +}; + +static const struct apci16xx_boardinfo apci16xx_boardtypes[] = { { - .pc_DriverName = "apci1648", - .i_VendorId = PCI_VENDOR_ID_ADDIDATA, - .i_DeviceId = 0x1009, - .i_IorangeBase0 = 128, - .i_PCIEeprom = ADDIDATA_NO_EEPROM, - .i_NbrTTLChannel = 48, - .reset = i_APCI16XX_Reset, - .ttl_config = i_APCI16XX_InsnConfigInitTTLIO, - .ttl_bits = i_APCI16XX_InsnBitsReadTTLIO, - .ttl_read = i_APCI16XX_InsnReadTTLIOAllPortValue, - .ttl_write = i_APCI16XX_InsnBitsWriteTTLIO, + .name = "apci1648", + .vendor = PCI_VENDOR_ID_ADDIDATA, + .device = PCI_DEVICE_ID_APCI1648, + .n_chan = 48, /* 2 subdevices */ }, { - .pc_DriverName = "apci1696", - .i_VendorId = PCI_VENDOR_ID_ADDIDATA, - .i_DeviceId = 0x100A, - .i_IorangeBase0 = 128, - .i_PCIEeprom = ADDIDATA_NO_EEPROM, - .i_NbrTTLChannel = 96, - .reset = i_APCI16XX_Reset, - .ttl_config = i_APCI16XX_InsnConfigInitTTLIO, - .ttl_bits = i_APCI16XX_InsnBitsReadTTLIO, - .ttl_read = i_APCI16XX_InsnReadTTLIOAllPortValue, - .ttl_write = i_APCI16XX_InsnBitsWriteTTLIO, + .name = "apci1696", + .vendor = PCI_VENDOR_ID_ADDIDATA, + .device = PCI_DEVICE_ID_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_mask = 1 << CR_CHAN(insn->chanspec); + unsigned int bits; + + /* + * Each 8-bit "port" is configurable as either input or + * output. Changing the configuration of any channel in + * a port changes the entire port. + */ + if (chan_mask & 0x000000ff) + bits = 0x000000ff; + else if (chan_mask & 0x0000ff00) + bits = 0x0000ff00; + else if (chan_mask & 0x00ff0000) + bits = 0x00ff0000; + else + bits = 0xff000000; + + switch (data[0]) { + case INSN_CONFIG_DIO_INPUT: + s->io_bits &= ~bits; + break; + case INSN_CONFIG_DIO_OUTPUT: + s->io_bits |= bits; + break; + case INSN_CONFIG_DIO_QUERY: + data[1] = (s->io_bits & bits) ? COMEDI_INPUT : COMEDI_OUTPUT; + return insn->n; + default: + return -EINVAL; + } + + 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) +{ + unsigned int mask = data[0]; + unsigned int bits = data[1]; + + /* Only update the channels configured as outputs */ + mask &= s->io_bits; + if (mask) { + s->state &= ~mask; + s->state |= (bits & mask); + + outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index)); + } + + data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index)); + + return insn->n; +} + +static const void *apci16xx_find_boardinfo(struct comedi_device *dev, + struct pci_dev *pcidev) +{ + const struct apci16xx_boardinfo *board; + int i; + + for (i = 0; i < ARRAY_SIZE(apci16xx_boardtypes); i++) { + board = &apci16xx_boardtypes[i]; + if (board->vendor == pcidev->vendor && + board->device == pcidev->device) + return board; + } + return NULL; +} + +static int apci16xx_auto_attach(struct comedi_device *dev, + unsigned long context_unused) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + const struct apci16xx_boardinfo *board; + struct comedi_subdevice *s; + unsigned int n_subdevs; + unsigned int last; + int i; + int ret; + + board = apci16xx_find_boardinfo(dev, pcidev); + if (!board) + return -ENODEV; + dev->board_ptr = board; + dev->board_name = board->name; + + ret = comedi_pci_enable(pcidev, dev->board_name); + 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_WRITEABLE | 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 void apci16xx_detach(struct comedi_device *dev) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + + if (pcidev) { + if (dev->iobase) + comedi_pci_disable(pcidev); + } +} + static struct comedi_driver apci16xx_driver = { .driver_name = "addi_apci_16xx", .module = THIS_MODULE, - .auto_attach = addi_auto_attach, - .detach = i_ADDI_Detach, + .auto_attach = apci16xx_auto_attach, + .detach = apci16xx_detach, .num_names = ARRAY_SIZE(apci16xx_boardtypes), - .board_name = &apci16xx_boardtypes[0].pc_DriverName, - .offset = sizeof(struct addi_board), + .board_name = &apci16xx_boardtypes[0].name, + .offset = sizeof(struct apci16xx_boardinfo), }; static int apci16xx_pci_probe(struct pci_dev *dev, @@ -52,14 +230,9 @@ static int apci16xx_pci_probe(struct pci_dev *dev, return comedi_pci_auto_config(dev, &apci16xx_driver); } -static void apci16xx_pci_remove(struct pci_dev *dev) -{ - comedi_pci_auto_unconfig(dev); -} - static DEFINE_PCI_DEVICE_TABLE(apci16xx_pci_table) = { - { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1009) }, - { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x100a) }, + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1648) }, + { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1696) }, { 0 } }; MODULE_DEVICE_TABLE(pci, apci16xx_pci_table); @@ -68,10 +241,10 @@ static struct pci_driver apci16xx_pci_driver = { .name = "addi_apci_16xx", .id_table = apci16xx_pci_table, .probe = apci16xx_pci_probe, - .remove = apci16xx_pci_remove, + .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_DESCRIPTION("Comedi low-level driver"); MODULE_LICENSE("GPL"); |