| /* |
| comedi/drivers/das08_cs.c |
| DAS08 driver |
| |
| COMEDI - Linux Control and Measurement Device Interface |
| Copyright (C) 2000 David A. Schleef <ds@schleef.org> |
| Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net> |
| |
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| |
| PCMCIA support code for this driver is adapted from the dummy_cs.c |
| driver of the Linux PCMCIA Card Services package. |
| |
| The initial developer of the original code is David A. Hinds |
| <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
| are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| |
| ***************************************************************** |
| |
| */ |
| /* |
| Driver: das08_cs |
| Description: DAS-08 PCMCIA boards |
| Author: Warren Jasper, ds, Frank Hess |
| Devices: [ComputerBoards] PCM-DAS08 (pcm-das08) |
| Status: works |
| |
| This is the PCMCIA-specific support split off from the |
| das08 driver. |
| |
| Options (for pcm-das08): |
| NONE |
| |
| Command support does not exist, but could be added for this board. |
| */ |
| |
| #include "../comedidev.h" |
| |
| #include <linux/delay.h> |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| |
| #include "das08.h" |
| |
| /* pcmcia includes */ |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/ds.h> |
| |
| static const struct das08_board_struct das08_cs_boards[] = { |
| { |
| .name = "pcm-das08", |
| .id = 0x0, /* XXX */ |
| .bustype = pcmcia, |
| .ai_nbits = 12, |
| .ai_pg = das08_bipolar5, |
| .ai_encoding = das08_pcm_encode12, |
| .di_nchan = 3, |
| .do_nchan = 3, |
| .iosize = 16, |
| }, |
| /* duplicate so driver name can be used also */ |
| { |
| .name = "das08_cs", |
| .id = 0x0, /* XXX */ |
| .bustype = pcmcia, |
| .ai_nbits = 12, |
| .ai_pg = das08_bipolar5, |
| .ai_encoding = das08_pcm_encode12, |
| .di_nchan = 3, |
| .do_nchan = 3, |
| .iosize = 16, |
| }, |
| }; |
| |
| static struct pcmcia_device *cur_dev; |
| |
| static int das08_cs_attach(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| const struct das08_board_struct *thisboard = comedi_board(dev); |
| struct das08_private_struct *devpriv; |
| unsigned long iobase; |
| struct pcmcia_device *link = cur_dev; /* XXX hack */ |
| |
| devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); |
| if (!devpriv) |
| return -ENOMEM; |
| dev->private = devpriv; |
| |
| dev_info(dev->class_dev, "das08_cs: attach\n"); |
| /* deal with a pci board */ |
| |
| if (thisboard->bustype == pcmcia) { |
| if (link == NULL) { |
| dev_err(dev->class_dev, "no pcmcia cards found\n"); |
| return -EIO; |
| } |
| iobase = link->resource[0]->start; |
| } else { |
| dev_err(dev->class_dev, |
| "bug! board does not have PCMCIA bustype\n"); |
| return -EINVAL; |
| } |
| |
| return das08_common_attach(dev, iobase); |
| } |
| |
| static struct comedi_driver driver_das08_cs = { |
| .driver_name = "das08_cs", |
| .module = THIS_MODULE, |
| .attach = das08_cs_attach, |
| .detach = das08_common_detach, |
| .board_name = &das08_cs_boards[0].name, |
| .num_names = ARRAY_SIZE(das08_cs_boards), |
| .offset = sizeof(struct das08_board_struct), |
| }; |
| |
| static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev, |
| void *priv_data) |
| { |
| if (p_dev->config_index == 0) |
| return -EINVAL; |
| |
| return pcmcia_request_io(p_dev); |
| } |
| |
| static int das08_pcmcia_attach(struct pcmcia_device *link) |
| { |
| int ret; |
| |
| link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
| |
| ret = pcmcia_loop_config(link, das08_pcmcia_config_loop, NULL); |
| if (ret) |
| goto failed; |
| |
| if (!link->irq) |
| goto failed; |
| |
| ret = pcmcia_enable_device(link); |
| if (ret) |
| goto failed; |
| |
| cur_dev = link; |
| return 0; |
| |
| failed: |
| pcmcia_disable_device(link); |
| return ret; |
| } |
| |
| static void das08_pcmcia_detach(struct pcmcia_device *link) |
| { |
| pcmcia_disable_device(link); |
| cur_dev = NULL; |
| } |
| |
| static const struct pcmcia_device_id das08_cs_id_table[] = { |
| PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001), |
| PCMCIA_DEVICE_NULL |
| }; |
| MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table); |
| |
| static struct pcmcia_driver das08_cs_driver = { |
| .name = "pcm-das08", |
| .owner = THIS_MODULE, |
| .probe = das08_pcmcia_attach, |
| .remove = das08_pcmcia_detach, |
| .id_table = das08_cs_id_table, |
| }; |
| |
| static int __init das08_cs_init_module(void) |
| { |
| int ret; |
| |
| ret = comedi_driver_register(&driver_das08_cs); |
| if (ret < 0) |
| return ret; |
| |
| ret = pcmcia_register_driver(&das08_cs_driver); |
| if (ret < 0) { |
| comedi_driver_unregister(&driver_das08_cs); |
| return ret; |
| } |
| |
| return 0; |
| |
| } |
| module_init(das08_cs_init_module); |
| |
| static void __exit das08_cs_exit_module(void) |
| { |
| pcmcia_unregister_driver(&das08_cs_driver); |
| comedi_driver_unregister(&driver_das08_cs); |
| } |
| module_exit(das08_cs_exit_module); |
| |
| MODULE_AUTHOR("David A. Schleef <ds@schleef.org>, " |
| "Frank Mori Hess <fmhess@users.sourceforge.net>"); |
| MODULE_DESCRIPTION("Comedi driver for ComputerBoards DAS-08 PCMCIA boards"); |
| MODULE_LICENSE("GPL"); |