| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * comedi/drivers/pcl730.c |
| * Driver for Advantech PCL-730 and clones |
| * José Luis Sánchez |
| */ |
| |
| /* |
| * Driver: pcl730 |
| * Description: Advantech PCL-730 (& compatibles) |
| * Devices: [Advantech] PCL-730 (pcl730), PCM-3730 (pcm3730), PCL-725 (pcl725), |
| * PCL-733 (pcl733), PCL-734 (pcl734), |
| * [ADLink] ACL-7130 (acl7130), ACL-7225b (acl7225b), |
| * [ICP] ISO-730 (iso730), P8R8-DIO (p8r8dio), P16R16-DIO (p16r16dio), |
| * [Diamond Systems] OPMM-1616-XT (opmm-1616-xt), PEARL-MM-P (pearl-mm-p), |
| * IR104-PBF (ir104-pbf), |
| * Author: José Luis Sánchez (jsanchezv@teleline.es) |
| * Status: untested |
| * |
| * Configuration options: |
| * [0] - I/O port base |
| * |
| * Interrupts are not supported. |
| * The ACL-7130 card has an 8254 timer/counter not supported by this driver. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/comedi/comedidev.h> |
| |
| /* |
| * Register map |
| * |
| * The register map varies slightly depending on the board type but |
| * all registers are 8-bit. |
| * |
| * The boardinfo 'io_range' is used to allow comedi to request the |
| * proper range required by the board. |
| * |
| * The comedi_subdevice 'private' data is used to pass the register |
| * offset to the (*insn_bits) functions to read/write the correct |
| * registers. |
| * |
| * The basic register mapping looks like this: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) / inputs 0-7 (read) |
| * BASE+1 Isolated outputs 8-15 (write) / inputs 8-15 (read) |
| * BASE+2 TTL outputs 0-7 (write) / inputs 0-7 (read) |
| * BASE+3 TTL outputs 8-15 (write) / inputs 8-15 (read) |
| * |
| * The pcm3730 board does not have register BASE+1. |
| * |
| * The pcl725 and p8r8dio only have registers BASE+0 and BASE+1: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) (read back on p8r8dio) |
| * BASE+1 Isolated inputs 0-7 (read) |
| * |
| * The acl7225b and p16r16dio boards have this register mapping: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) (read back) |
| * BASE+1 Isolated outputs 8-15 (write) (read back) |
| * BASE+2 Isolated inputs 0-7 (read) |
| * BASE+3 Isolated inputs 8-15 (read) |
| * |
| * The pcl733 and pcl733 boards have this register mapping: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) or inputs 0-7 (read) |
| * BASE+1 Isolated outputs 8-15 (write) or inputs 8-15 (read) |
| * BASE+2 Isolated outputs 16-23 (write) or inputs 16-23 (read) |
| * BASE+3 Isolated outputs 24-31 (write) or inputs 24-31 (read) |
| * |
| * The opmm-1616-xt board has this register mapping: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) (read back) |
| * BASE+1 Isolated outputs 8-15 (write) (read back) |
| * BASE+2 Isolated inputs 0-7 (read) |
| * BASE+3 Isolated inputs 8-15 (read) |
| * |
| * These registers are not currently supported: |
| * |
| * BASE+2 Relay select register (write) |
| * BASE+3 Board reset control register (write) |
| * BASE+4 Interrupt control register (write) |
| * BASE+4 Change detect 7-0 status register (read) |
| * BASE+5 LED control register (write) |
| * BASE+5 Change detect 15-8 status register (read) |
| * |
| * The pearl-mm-p board has this register mapping: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) |
| * BASE+1 Isolated outputs 8-15 (write) |
| * |
| * The ir104-pbf board has this register mapping: |
| * |
| * BASE+0 Isolated outputs 0-7 (write) (read back) |
| * BASE+1 Isolated outputs 8-15 (write) (read back) |
| * BASE+2 Isolated outputs 16-19 (write) (read back) |
| * BASE+4 Isolated inputs 0-7 (read) |
| * BASE+5 Isolated inputs 8-15 (read) |
| * BASE+6 Isolated inputs 16-19 (read) |
| */ |
| |
| struct pcl730_board { |
| const char *name; |
| unsigned int io_range; |
| unsigned is_pcl725:1; |
| unsigned is_acl7225b:1; |
| unsigned is_ir104:1; |
| unsigned has_readback:1; |
| unsigned has_ttl_io:1; |
| int n_subdevs; |
| int n_iso_out_chan; |
| int n_iso_in_chan; |
| int n_ttl_chan; |
| }; |
| |
| static const struct pcl730_board pcl730_boards[] = { |
| { |
| .name = "pcl730", |
| .io_range = 0x04, |
| .has_ttl_io = 1, |
| .n_subdevs = 4, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| .n_ttl_chan = 16, |
| }, { |
| .name = "iso730", |
| .io_range = 0x04, |
| .n_subdevs = 4, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| .n_ttl_chan = 16, |
| }, { |
| .name = "acl7130", |
| .io_range = 0x08, |
| .has_ttl_io = 1, |
| .n_subdevs = 4, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| .n_ttl_chan = 16, |
| }, { |
| .name = "pcm3730", |
| .io_range = 0x04, |
| .has_ttl_io = 1, |
| .n_subdevs = 4, |
| .n_iso_out_chan = 8, |
| .n_iso_in_chan = 8, |
| .n_ttl_chan = 16, |
| }, { |
| .name = "pcl725", |
| .io_range = 0x02, |
| .is_pcl725 = 1, |
| .n_subdevs = 2, |
| .n_iso_out_chan = 8, |
| .n_iso_in_chan = 8, |
| }, { |
| .name = "p8r8dio", |
| .io_range = 0x02, |
| .is_pcl725 = 1, |
| .has_readback = 1, |
| .n_subdevs = 2, |
| .n_iso_out_chan = 8, |
| .n_iso_in_chan = 8, |
| }, { |
| .name = "acl7225b", |
| .io_range = 0x08, /* only 4 are used */ |
| .is_acl7225b = 1, |
| .has_readback = 1, |
| .n_subdevs = 2, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| }, { |
| .name = "p16r16dio", |
| .io_range = 0x04, |
| .is_acl7225b = 1, |
| .has_readback = 1, |
| .n_subdevs = 2, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| }, { |
| .name = "pcl733", |
| .io_range = 0x04, |
| .n_subdevs = 1, |
| .n_iso_in_chan = 32, |
| }, { |
| .name = "pcl734", |
| .io_range = 0x04, |
| .n_subdevs = 1, |
| .n_iso_out_chan = 32, |
| }, { |
| .name = "opmm-1616-xt", |
| .io_range = 0x10, |
| .is_acl7225b = 1, |
| .has_readback = 1, |
| .n_subdevs = 2, |
| .n_iso_out_chan = 16, |
| .n_iso_in_chan = 16, |
| }, { |
| .name = "pearl-mm-p", |
| .io_range = 0x02, |
| .n_subdevs = 1, |
| .n_iso_out_chan = 16, |
| }, { |
| .name = "ir104-pbf", |
| .io_range = 0x08, |
| .is_ir104 = 1, |
| .has_readback = 1, |
| .n_iso_out_chan = 20, |
| .n_iso_in_chan = 20, |
| }, |
| }; |
| |
| static int pcl730_do_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| unsigned long reg = (unsigned long)s->private; |
| unsigned int mask; |
| |
| mask = comedi_dio_update_state(s, data); |
| if (mask) { |
| if (mask & 0x00ff) |
| outb(s->state & 0xff, dev->iobase + reg); |
| if ((mask & 0xff00) && (s->n_chan > 8)) |
| outb((s->state >> 8) & 0xff, dev->iobase + reg + 1); |
| if ((mask & 0xff0000) && (s->n_chan > 16)) |
| outb((s->state >> 16) & 0xff, dev->iobase + reg + 2); |
| if ((mask & 0xff000000) && (s->n_chan > 24)) |
| outb((s->state >> 24) & 0xff, dev->iobase + reg + 3); |
| } |
| |
| data[1] = s->state; |
| |
| return insn->n; |
| } |
| |
| static unsigned int pcl730_get_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s) |
| { |
| unsigned long reg = (unsigned long)s->private; |
| unsigned int val; |
| |
| val = inb(dev->iobase + reg); |
| if (s->n_chan > 8) |
| val |= (inb(dev->iobase + reg + 1) << 8); |
| if (s->n_chan > 16) |
| val |= (inb(dev->iobase + reg + 2) << 16); |
| if (s->n_chan > 24) |
| val |= (inb(dev->iobase + reg + 3) << 24); |
| |
| return val; |
| } |
| |
| static int pcl730_di_insn_bits(struct comedi_device *dev, |
| struct comedi_subdevice *s, |
| struct comedi_insn *insn, |
| unsigned int *data) |
| { |
| data[1] = pcl730_get_bits(dev, s); |
| |
| return insn->n; |
| } |
| |
| static int pcl730_attach(struct comedi_device *dev, |
| struct comedi_devconfig *it) |
| { |
| const struct pcl730_board *board = dev->board_ptr; |
| struct comedi_subdevice *s; |
| int subdev; |
| int ret; |
| |
| ret = comedi_request_region(dev, it->options[0], board->io_range); |
| if (ret) |
| return ret; |
| |
| ret = comedi_alloc_subdevices(dev, board->n_subdevs); |
| if (ret) |
| return ret; |
| |
| subdev = 0; |
| |
| if (board->n_iso_out_chan) { |
| /* Isolated Digital Outputs */ |
| s = &dev->subdevices[subdev++]; |
| s->type = COMEDI_SUBD_DO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = board->n_iso_out_chan; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pcl730_do_insn_bits; |
| s->private = (void *)0; |
| |
| /* get the initial state if supported */ |
| if (board->has_readback) |
| s->state = pcl730_get_bits(dev, s); |
| } |
| |
| if (board->n_iso_in_chan) { |
| /* Isolated Digital Inputs */ |
| s = &dev->subdevices[subdev++]; |
| s->type = COMEDI_SUBD_DI; |
| s->subdev_flags = SDF_READABLE; |
| s->n_chan = board->n_iso_in_chan; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pcl730_di_insn_bits; |
| s->private = board->is_ir104 ? (void *)4 : |
| board->is_acl7225b ? (void *)2 : |
| board->is_pcl725 ? (void *)1 : (void *)0; |
| } |
| |
| if (board->has_ttl_io) { |
| /* TTL Digital Outputs */ |
| s = &dev->subdevices[subdev++]; |
| s->type = COMEDI_SUBD_DO; |
| s->subdev_flags = SDF_WRITABLE; |
| s->n_chan = board->n_ttl_chan; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pcl730_do_insn_bits; |
| s->private = (void *)2; |
| |
| /* TTL Digital Inputs */ |
| s = &dev->subdevices[subdev++]; |
| s->type = COMEDI_SUBD_DI; |
| s->subdev_flags = SDF_READABLE; |
| s->n_chan = board->n_ttl_chan; |
| s->maxdata = 1; |
| s->range_table = &range_digital; |
| s->insn_bits = pcl730_di_insn_bits; |
| s->private = (void *)2; |
| } |
| |
| return 0; |
| } |
| |
| static struct comedi_driver pcl730_driver = { |
| .driver_name = "pcl730", |
| .module = THIS_MODULE, |
| .attach = pcl730_attach, |
| .detach = comedi_legacy_detach, |
| .board_name = &pcl730_boards[0].name, |
| .num_names = ARRAY_SIZE(pcl730_boards), |
| .offset = sizeof(struct pcl730_board), |
| }; |
| module_comedi_driver(pcl730_driver); |
| |
| MODULE_AUTHOR("Comedi https://www.comedi.org"); |
| MODULE_DESCRIPTION("Comedi low-level driver"); |
| MODULE_LICENSE("GPL"); |