staging: comedi: unioxx5: remove this flawed driver
I was going to clean up this driver but looking it over it has a number of serious flaws. Also, Fastwell published an End-Of-Life notification for the board on 24/Jan/2014 (End-of-sale 30/Jun/2014, End-of-delivery 30/Dec/2014). Since the driver has a comedi driver status of "unkown", lets just remove the driver instead of trying to fix the flaws. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten
Greg Kroah-Hartman
parent
035d819b4e
commit
6d40c0c74a
@ -400,14 +400,6 @@ config COMEDI_DMM32AT
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To compile this driver as a module, choose M here: the module will be
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called dmm32at.
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config COMEDI_UNIOXX5
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tristate "Fastwel UNIOxx-5 analog and digital io board support"
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---help---
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Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards
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To compile this driver as a module, choose M here: the module will be
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called unioxx5.
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config COMEDI_FL512
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tristate "FL512 ISA card support"
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---help---
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@ -90,7 +90,6 @@ obj-$(CONFIG_COMEDI_CONTEC_PCI_DIO) += contec_pci_dio.o
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obj-$(CONFIG_COMEDI_DAS08_PCI) += das08_pci.o
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obj-$(CONFIG_COMEDI_DT3000) += dt3000.o
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obj-$(CONFIG_COMEDI_DYNA_PCI10XX) += dyna_pci10xx.o
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obj-$(CONFIG_COMEDI_UNIOXX5) += unioxx5.o
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obj-$(CONFIG_COMEDI_GSC_HPDI) += gsc_hpdi.o
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obj-$(CONFIG_COMEDI_ICP_MULTI) += icp_multi.o
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obj-$(CONFIG_COMEDI_DAQBOARD2000) += daqboard2000.o
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@ -1,506 +0,0 @@
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/***************************************************************************
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* *
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* comedi/drivers/unioxx5.c *
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* Driver for Fastwel UNIOxx-5 (analog and digital i/o) boards. *
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* *
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* Copyright (C) 2006 Kruchinin Daniil (asgard) [asgard@etersoft.ru] *
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* *
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* COMEDI - Linux Control and Measurement Device Interface *
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* Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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***************************************************************************/
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/*
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Driver: unioxx5
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Description: Driver for Fastwel UNIOxx-5 (analog and digital i/o) boards.
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Author: Kruchinin Daniil (asgard) <asgard@etersoft.ru>
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Status: unknown
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Updated: 2006-10-09
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Devices: [Fastwel] UNIOxx-5 (unioxx5),
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This card supports digital and analog I/O. It written for g01
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subdevices only.
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channels range: 0 .. 23 dio channels
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and 0 .. 11 analog modules range
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During attaching unioxx5 module displays modules identifiers
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(see dmesg after comedi_config) in format:
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| [module_number] module_id |
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include "../comedidev.h"
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#define UNIOXX5_SIZE 0x10
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#define UNIOXX5_SUBDEV_BASE 0xA000 /* base addr of first subdev */
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#define UNIOXX5_SUBDEV_ODDS 0x400
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/* modules types */
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#define MODULE_DIGITAL 0
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#define MODULE_OUTPUT_MASK 0x80 /* analog input/output */
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/* constants for digital i/o */
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#define UNIOXX5_NUM_OF_CHANS 24
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/* constants for analog i/o */
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#define TxBE 0x10 /* transmit buffer enable */
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#define RxCA 0x20 /* 1 receive character available */
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#define Rx2CA 0x40 /* 2 receive character available */
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#define Rx4CA 0x80 /* 4 receive character available */
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/* bytes mask errors */
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#define Rx2CA_ERR_MASK 0x04 /* 2 bytes receiving error */
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#define Rx4CA_ERR_MASK 0x08 /* 4 bytes receiving error */
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/* channel modes */
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#define ALL_2_INPUT 0 /* config all digital channels to input */
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#define ALL_2_OUTPUT 1 /* config all digital channels to output */
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/* 'private' structure for each subdevice */
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struct unioxx5_subd_priv {
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int usp_iobase;
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/* 12 modules. each can be 70L or 73L */
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unsigned char usp_module_type[12];
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/* for saving previous written value for analog modules */
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unsigned char usp_extra_data[12][4];
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unsigned char usp_prev_wr_val[3]; /* previous written value */
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unsigned char usp_prev_cn_val[3]; /* previous channel value */
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};
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static int __unioxx5_define_chan_offset(int chan_num)
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{
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if (chan_num < 0 || chan_num > 23)
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return -1;
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return (chan_num >> 3) + 1;
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}
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#if 0 /* not used? */
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static void __unioxx5_digital_config(struct comedi_subdevice *s, int mode)
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{
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struct unioxx5_subd_priv *usp = s->private;
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struct device *csdev = s->device->class_dev;
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int i, mask;
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mask = (mode == ALL_2_OUTPUT) ? 0xFF : 0x00;
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dev_dbg(csdev, "mode = %d\n", mask);
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outb(1, usp->usp_iobase + 0);
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for (i = 0; i < 3; i++)
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outb(mask, usp->usp_iobase + i);
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outb(0, usp->usp_iobase + 0);
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}
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#endif
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/* configure channels for analog i/o (even to output, odd to input) */
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static void __unioxx5_analog_config(struct unioxx5_subd_priv *usp, int channel)
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{
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int chan_a, chan_b, conf, channel_offset;
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channel_offset = __unioxx5_define_chan_offset(channel);
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conf = usp->usp_prev_cn_val[channel_offset - 1];
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chan_a = chan_b = 1;
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/* setting channel A and channel B mask */
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if (channel % 2 == 0) {
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chan_a <<= channel & 0x07;
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chan_b <<= (channel + 1) & 0x07;
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} else {
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chan_a <<= (channel - 1) & 0x07;
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chan_b <<= channel & 0x07;
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}
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conf |= chan_a; /* even channel ot output */
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conf &= ~chan_b; /* odd channel to input */
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outb(1, usp->usp_iobase + 0);
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outb(conf, usp->usp_iobase + channel_offset);
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outb(0, usp->usp_iobase + 0);
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usp->usp_prev_cn_val[channel_offset - 1] = conf;
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}
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static int __unioxx5_digital_read(struct comedi_subdevice *s,
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unsigned int *data, int channel, int minor)
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{
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struct unioxx5_subd_priv *usp = s->private;
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struct device *csdev = s->device->class_dev;
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int channel_offset, mask = 1 << (channel & 0x07);
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channel_offset = __unioxx5_define_chan_offset(channel);
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if (channel_offset < 0) {
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dev_err(csdev,
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"undefined channel %d. channel range is 0 .. 23\n",
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channel);
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return 0;
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}
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*data = inb(usp->usp_iobase + channel_offset);
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*data &= mask;
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/* correct the read value to 0 or 1 */
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if (channel_offset > 1)
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channel -= 2 << channel_offset;
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*data >>= channel;
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return 1;
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}
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static int __unioxx5_analog_read(struct comedi_subdevice *s,
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unsigned int *data, int channel, int minor)
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{
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struct unioxx5_subd_priv *usp = s->private;
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struct device *csdev = s->device->class_dev;
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int module_no, read_ch;
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char control;
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module_no = channel / 2;
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read_ch = channel % 2; /* depend on type of channel (A or B) */
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/* defining if given module can work on input */
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if (usp->usp_module_type[module_no] & MODULE_OUTPUT_MASK) {
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dev_err(csdev,
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"module in position %d with id 0x%02x is for output only",
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module_no, usp->usp_module_type[module_no]);
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return 0;
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}
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__unioxx5_analog_config(usp, channel);
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/* sends module number to card(1 .. 12) */
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outb(module_no + 1, usp->usp_iobase + 5);
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outb('V', usp->usp_iobase + 6); /* sends to module (V)erify command */
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control = inb(usp->usp_iobase); /* get control register byte */
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/* waits while reading four bytes will be allowed */
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while (!((control = inb(usp->usp_iobase + 0)) & Rx4CA))
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;
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/* if four bytes readding error occurs - return 0(false) */
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if ((control & Rx4CA_ERR_MASK)) {
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dev_err(csdev, "4 bytes error\n");
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return 0;
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}
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if (read_ch)
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*data = inw(usp->usp_iobase + 6); /* channel B */
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else
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*data = inw(usp->usp_iobase + 4); /* channel A */
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return 1;
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}
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static int __unioxx5_digital_write(struct comedi_subdevice *s,
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unsigned int *data, int channel, int minor)
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{
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struct unioxx5_subd_priv *usp = s->private;
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struct device *csdev = s->device->class_dev;
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int channel_offset, val;
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int mask = 1 << (channel & 0x07);
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channel_offset = __unioxx5_define_chan_offset(channel);
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if (channel_offset < 0) {
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dev_err(csdev,
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"undefined channel %d. channel range is 0 .. 23\n",
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channel);
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return 0;
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}
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/* getting previous written value */
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val = usp->usp_prev_wr_val[channel_offset - 1];
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if (*data)
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val |= mask;
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else
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val &= ~mask;
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outb(val, usp->usp_iobase + channel_offset);
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/* saving new written value */
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usp->usp_prev_wr_val[channel_offset - 1] = val;
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return 1;
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}
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static int __unioxx5_analog_write(struct comedi_subdevice *s,
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unsigned int *data, int channel, int minor)
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{
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struct unioxx5_subd_priv *usp = s->private;
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struct device *csdev = s->device->class_dev;
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int module, i;
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module = channel / 2; /* definig module number(0 .. 11) */
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i = (channel % 2) << 1; /* depends on type of channel (A or B) */
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/* defining if given module can work on output */
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if (!(usp->usp_module_type[module] & MODULE_OUTPUT_MASK)) {
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dev_err(csdev,
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"module in position %d with id 0x%0x is for input only!\n",
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module, usp->usp_module_type[module]);
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return 0;
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}
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__unioxx5_analog_config(usp, channel);
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/* saving minor byte */
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usp->usp_extra_data[module][i++] = (unsigned char)(*data & 0x00FF);
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/* saving major byte */
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usp->usp_extra_data[module][i] = (unsigned char)((*data & 0xFF00) >> 8);
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/* while(!((inb(usp->usp_iobase + 0)) & TxBE)); */
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/* sending module number to card(1 .. 12) */
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outb(module + 1, usp->usp_iobase + 5);
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outb('W', usp->usp_iobase + 6); /* sends (W)rite command to module */
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/* sending for bytes to module(one byte per cycle iteration) */
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for (i = 0; i < 4; i++) {
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while (!((inb(usp->usp_iobase + 0)) & TxBE))
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; /* waits while writing will be allowed */
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outb(usp->usp_extra_data[module][i], usp->usp_iobase + 6);
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}
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return 1;
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}
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static int unioxx5_subdev_read(struct comedi_device *dev,
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struct comedi_subdevice *subdev,
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struct comedi_insn *insn, unsigned int *data)
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{
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struct unioxx5_subd_priv *usp = subdev->private;
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int channel, type;
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channel = CR_CHAN(insn->chanspec);
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/* defining module type(analog or digital) */
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type = usp->usp_module_type[channel / 2];
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if (type == MODULE_DIGITAL) {
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if (!__unioxx5_digital_read(subdev, data, channel, dev->minor))
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return -1;
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} else {
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if (!__unioxx5_analog_read(subdev, data, channel, dev->minor))
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return -1;
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}
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return 1;
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}
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static int unioxx5_subdev_write(struct comedi_device *dev,
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struct comedi_subdevice *subdev,
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struct comedi_insn *insn, unsigned int *data)
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{
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struct unioxx5_subd_priv *usp = subdev->private;
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int channel, type;
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channel = CR_CHAN(insn->chanspec);
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/* defining module type(analog or digital) */
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type = usp->usp_module_type[channel / 2];
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if (type == MODULE_DIGITAL) {
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if (!__unioxx5_digital_write(subdev, data, channel, dev->minor))
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return -1;
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} else {
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if (!__unioxx5_analog_write(subdev, data, channel, dev->minor))
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return -1;
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}
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return 1;
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}
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/* for digital modules only */
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static int unioxx5_insn_config(struct comedi_device *dev,
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struct comedi_subdevice *subdev,
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struct comedi_insn *insn, unsigned int *data)
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{
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int channel_offset, flags, channel = CR_CHAN(insn->chanspec), type;
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struct unioxx5_subd_priv *usp = subdev->private;
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int mask = 1 << (channel & 0x07);
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type = usp->usp_module_type[channel / 2];
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if (type != MODULE_DIGITAL) {
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dev_err(dev->class_dev,
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"channel configuration accessible only for digital modules\n");
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return -1;
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}
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channel_offset = __unioxx5_define_chan_offset(channel);
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if (channel_offset < 0) {
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dev_err(dev->class_dev,
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"undefined channel %d. channel range is 0 .. 23\n",
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channel);
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return -1;
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}
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/* gets previously written value */
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flags = usp->usp_prev_cn_val[channel_offset - 1];
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switch (*data) {
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case COMEDI_INPUT:
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flags &= ~mask;
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break;
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case COMEDI_OUTPUT:
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flags |= mask;
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break;
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default:
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dev_err(dev->class_dev, "unknown flag\n");
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return -1;
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}
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/* *\
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* sets channels buffer to 1(after this we are allowed to *
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* change channel type on input or output) *
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\* */
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outb(1, usp->usp_iobase + 0);
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/* changes type of _one_ channel */
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outb(flags, usp->usp_iobase + channel_offset);
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/* sets channels bank to 0(allows directly input/output) */
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outb(0, usp->usp_iobase + 0);
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/* saves written value */
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usp->usp_prev_cn_val[channel_offset - 1] = flags;
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return 0;
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}
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/* initializing subdevice with given address */
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static int __unioxx5_subdev_init(struct comedi_device *dev,
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struct comedi_subdevice *s,
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int iobase)
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{
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struct unioxx5_subd_priv *usp;
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int i, to, ndef_flag = 0;
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int ret;
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usp = comedi_alloc_spriv(s, sizeof(*usp));
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if (!usp)
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return -ENOMEM;
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ret = __comedi_request_region(dev, iobase, UNIOXX5_SIZE);
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if (ret)
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return ret;
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usp->usp_iobase = iobase;
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/* defining modules types */
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for (i = 0; i < 12; i++) {
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to = 10000;
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__unioxx5_analog_config(usp, i * 2);
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/* sends channel number to card */
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outb(i + 1, iobase + 5);
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outb('H', iobase + 6); /* requests EEPROM world */
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while (!(inb(iobase + 0) & TxBE))
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; /* waits while writing will be allowed */
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outb(0, iobase + 6);
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/* waits while reading of two bytes will be allowed */
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while (!(inb(iobase + 0) & Rx2CA)) {
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if (--to <= 0) {
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ndef_flag = 1;
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break;
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}
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}
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if (ndef_flag) {
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usp->usp_module_type[i] = 0;
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ndef_flag = 0;
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} else {
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usp->usp_module_type[i] = inb(iobase + 6);
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}
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udelay(1);
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}
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/* initial subdevice for digital or analog i/o */
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s->type = COMEDI_SUBD_DIO;
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s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
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s->n_chan = UNIOXX5_NUM_OF_CHANS;
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s->maxdata = 0xFFF;
|
||||
s->range_table = &range_digital;
|
||||
s->insn_read = unioxx5_subdev_read;
|
||||
s->insn_write = unioxx5_subdev_write;
|
||||
/* for digital modules only!!! */
|
||||
s->insn_config = unioxx5_insn_config;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int unioxx5_attach(struct comedi_device *dev,
|
||||
struct comedi_devconfig *it)
|
||||
{
|
||||
struct comedi_subdevice *s;
|
||||
int iobase, i, n_subd;
|
||||
int id, num, ba;
|
||||
int ret;
|
||||
|
||||
iobase = it->options[0];
|
||||
|
||||
dev->iobase = iobase;
|
||||
iobase += UNIOXX5_SUBDEV_BASE;
|
||||
n_subd = 0;
|
||||
|
||||
/* getting number of subdevices with types 'g01' */
|
||||
for (i = 0, ba = iobase; i < 4; i++, ba += UNIOXX5_SUBDEV_ODDS) {
|
||||
id = inb(ba + 0xE);
|
||||
num = inb(ba + 0xF);
|
||||
|
||||
if (id != 'g' || num != 1)
|
||||
continue;
|
||||
|
||||
n_subd++;
|
||||
}
|
||||
|
||||
/* unioxx5 can has from two to four subdevices */
|
||||
if (n_subd < 2) {
|
||||
dev_err(dev->class_dev,
|
||||
"your card must has at least 2 'g01' subdevices\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = comedi_alloc_subdevices(dev, n_subd);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* initializing each of for same subdevices */
|
||||
for (i = 0; i < n_subd; i++, iobase += UNIOXX5_SUBDEV_ODDS) {
|
||||
s = &dev->subdevices[i];
|
||||
ret = __unioxx5_subdev_init(dev, s, iobase);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void unioxx5_detach(struct comedi_device *dev)
|
||||
{
|
||||
struct comedi_subdevice *s;
|
||||
struct unioxx5_subd_priv *spriv;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < dev->n_subdevices; i++) {
|
||||
s = &dev->subdevices[i];
|
||||
spriv = s->private;
|
||||
if (spriv && spriv->usp_iobase)
|
||||
release_region(spriv->usp_iobase, UNIOXX5_SIZE);
|
||||
}
|
||||
}
|
||||
|
||||
static struct comedi_driver unioxx5_driver = {
|
||||
.driver_name = "unioxx5",
|
||||
.module = THIS_MODULE,
|
||||
.attach = unioxx5_attach,
|
||||
.detach = unioxx5_detach,
|
||||
};
|
||||
module_comedi_driver(unioxx5_driver);
|
||||
|
||||
MODULE_AUTHOR("Comedi http://www.comedi.org");
|
||||
MODULE_DESCRIPTION("Comedi low-level driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user