diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/das16m1.c')
-rw-r--r-- | drivers/staging/comedi/drivers/das16m1.c | 482 |
1 files changed, 233 insertions, 249 deletions
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index 3a37373..bb8d6ec 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -1,56 +1,52 @@ /* - comedi/drivers/das16m1.c - CIO-DAS16/M1 driver - Author: Frank Mori Hess, based on code from the das16 - driver. - Copyright (C) 2001 Frank Mori Hess <fmhess@users.sourceforge.net> - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2000 David A. Schleef <ds@schleef.org> - - 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. -*/ + * Comedi driver for CIO-DAS16/M1 + * Author: Frank Mori Hess, based on code from the das16 driver. + * Copyright (C) 2001 Frank Mori Hess <fmhess@users.sourceforge.net> + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef <ds@schleef.org> + * + * 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. + */ + /* -Driver: das16m1 -Description: CIO-DAS16/M1 -Author: Frank Mori Hess <fmhess@users.sourceforge.net> -Devices: [Measurement Computing] CIO-DAS16/M1 (das16m1) -Status: works - -This driver supports a single board - the CIO-DAS16/M1. -As far as I know, there are no other boards that have -the same register layout. Even the CIO-DAS16/M1/16 is -significantly different. - -I was _barely_ able to reach the full 1 MHz capability -of this board, using a hard real-time interrupt -(set the TRIG_RT flag in your struct comedi_cmd and use -rtlinux or RTAI). The board can't do dma, so the bottleneck is -pulling the data across the ISA bus. I timed the interrupt -handler, and it took my computer ~470 microseconds to pull 512 -samples from the board. So at 1 Mhz sampling rate, -expect your CPU to be spending almost all of its -time in the interrupt handler. - -This board has some unusual restrictions for its channel/gain list. If the -list has 2 or more channels in it, then two conditions must be satisfied: -(1) - even/odd channels must appear at even/odd indices in the list -(2) - the list must have an even number of entries. - -Options: - [0] - base io address - [1] - irq (optional, but you probably want it) - -irq can be omitted, although the cmd interface will not work without it. -*/ + * Driver: das16m1 + * Description: CIO-DAS16/M1 + * Author: Frank Mori Hess <fmhess@users.sourceforge.net> + * Devices: [Measurement Computing] CIO-DAS16/M1 (das16m1) + * Status: works + * + * This driver supports a single board - the CIO-DAS16/M1. As far as I know, + * there are no other boards that have the same register layout. Even the + * CIO-DAS16/M1/16 is significantly different. + * + * I was _barely_ able to reach the full 1 MHz capability of this board, using + * a hard real-time interrupt (set the TRIG_RT flag in your struct comedi_cmd + * and use rtlinux or RTAI). The board can't do dma, so the bottleneck is + * pulling the data across the ISA bus. I timed the interrupt handler, and it + * took my computer ~470 microseconds to pull 512 samples from the board. So + * at 1 Mhz sampling rate, expect your CPU to be spending almost all of its + * time in the interrupt handler. + * + * This board has some unusual restrictions for its channel/gain list. If the + * list has 2 or more channels in it, then two conditions must be satisfied: + * (1) - even/odd channels must appear at even/odd indices in the list + * (2) - the list must have an even number of entries. + * + * Configuration options: + * [0] - base io address + * [1] - irq (optional, but you probably want it) + * + * irq can be omitted, although the cmd interface will not work without it. + */ #include <linux/module.h> #include <linux/slab.h> @@ -60,52 +56,38 @@ irq can be omitted, although the cmd interface will not work without it. #include "8255.h" #include "comedi_8254.h" -#define DAS16M1_SIZE2 8 - -#define FIFO_SIZE 1024 /* 1024 sample fifo */ - /* - CIO-DAS16_M1.pdf - - "cio-das16/m1" - - 0 a/d bits 0-3, mux start 12 bit - 1 a/d bits 4-11 unused - 2 status control - 3 di 4 bit do 4 bit - 4 unused clear interrupt - 5 interrupt, pacer - 6 channel/gain queue address - 7 channel/gain queue data - 89ab 8254 - cdef 8254 - 400 8255 - 404-407 8254 - -*/ - -#define DAS16M1_AI 0 /* 16-bit wide register */ -#define AI_CHAN(x) ((x) & 0xf) -#define DAS16M1_CS 2 -#define EXT_TRIG_BIT 0x1 -#define OVRUN 0x20 -#define IRQDATA 0x80 -#define DAS16M1_DIO 3 -#define DAS16M1_CLEAR_INTR 4 -#define DAS16M1_INTR_CONTROL 5 -#define EXT_PACER 0x2 -#define INT_PACER 0x3 -#define PACER_MASK 0x3 -#define INTE 0x80 -#define DAS16M1_QUEUE_ADDR 6 -#define DAS16M1_QUEUE_DATA 7 -#define Q_CHAN(x) ((x) & 0x7) -#define Q_RANGE(x) (((x) & 0xf) << 4) -#define UNIPOLAR 0x40 -#define DAS16M1_8254_FIRST 0x8 -#define DAS16M1_8254_SECOND 0xc -#define DAS16M1_82C55 0x400 -#define DAS16M1_8254_THIRD 0x404 + * Register map (dev->iobase) + */ +#define DAS16M1_AI_REG 0x00 /* 16-bit register */ +#define DAS16M1_AI_TO_CHAN(x) (((x) >> 0) & 0xf) +#define DAS16M1_AI_TO_SAMPLE(x) (((x) >> 4) & 0xfff) +#define DAS16M1_CS_REG 0x02 +#define DAS16M1_CS_EXT_TRIG BIT(0) +#define DAS16M1_CS_OVRUN BIT(5) +#define DAS16M1_CS_IRQDATA BIT(7) +#define DAS16M1_DI_REG 0x03 +#define DAS16M1_DO_REG 0x03 +#define DAS16M1_CLR_INTR_REG 0x04 +#define DAS16M1_INTR_CTRL_REG 0x05 +#define DAS16M1_INTR_CTRL_PACER(x) (((x) & 0x3) << 0) +#define DAS16M1_INTR_CTRL_PACER_EXT DAS16M1_INTR_CTRL_PACER(2) +#define DAS16M1_INTR_CTRL_PACER_INT DAS16M1_INTR_CTRL_PACER(3) +#define DAS16M1_INTR_CTRL_PACER_MASK DAS16M1_INTR_CTRL_PACER(3) +#define DAS16M1_INTR_CTRL_IRQ(x) (((x) & 0x7) << 4) +#define DAS16M1_INTR_CTRL_INTE BIT(7) +#define DAS16M1_Q_ADDR_REG 0x06 +#define DAS16M1_Q_REG 0x07 +#define DAS16M1_Q_CHAN(x) (((x) & 0x7) << 0) +#define DAS16M1_Q_RANGE(x) (((x) & 0xf) << 4) +#define DAS16M1_8254_IOBASE1 0x08 +#define DAS16M1_8254_IOBASE2 0x0c +#define DAS16M1_8255_IOBASE 0x400 +#define DAS16M1_8254_IOBASE3 0x404 + +#define DAS16M1_SIZE2 0x08 + +#define DAS16M1_AI_FIFO_SZ 1024 /* # samples */ static const struct comedi_lrange range_das16m1 = { 9, { @@ -121,29 +103,46 @@ static const struct comedi_lrange range_das16m1 = { } }; -struct das16m1_private_struct { +struct das16m1_private { struct comedi_8254 *counter; - unsigned int control_state; - unsigned int adc_count; /* number of samples completed */ - /* initial value in lower half of hardware conversion counter, - * needed to keep track of whether new count has been loaded into - * counter yet (loaded by first sample conversion) */ + unsigned int intr_ctrl; + unsigned int adc_count; u16 initial_hw_count; - unsigned short ai_buffer[FIFO_SIZE]; + unsigned short ai_buffer[DAS16M1_AI_FIFO_SZ]; unsigned long extra_iobase; }; -static inline unsigned short munge_sample(unsigned short data) +static void das16m1_ai_set_queue(struct comedi_device *dev, + unsigned int *chanspec, unsigned int len) { - return (data >> 4) & 0xfff; + unsigned int i; + + for (i = 0; i < len; i++) { + unsigned int chan = CR_CHAN(chanspec[i]); + unsigned int range = CR_RANGE(chanspec[i]); + + outb(i, dev->iobase + DAS16M1_Q_ADDR_REG); + outb(DAS16M1_Q_CHAN(chan) | DAS16M1_Q_RANGE(range), + dev->iobase + DAS16M1_Q_REG); + } } -static void munge_sample_array(unsigned short *array, unsigned int num_elements) +static void das16m1_ai_munge(struct comedi_device *dev, + struct comedi_subdevice *s, + void *data, unsigned int num_bytes, + unsigned int start_chan_index) { + unsigned short *array = data; + unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes); unsigned int i; - for (i = 0; i < num_elements; i++) - array[i] = munge_sample(array[i]); + /* + * The fifo values have the channel number in the lower 4-bits and + * the sample in the upper 12-bits. This just shifts the values + * to remove the channel numbers. + */ + for (i = 0; i < nsamples; i++) + array[i] = DAS16M1_AI_TO_SAMPLE(array[i]); } static int das16m1_ai_check_chanlist(struct comedi_device *dev, @@ -174,8 +173,9 @@ static int das16m1_ai_check_chanlist(struct comedi_device *dev, return 0; } -static int das16m1_cmd_test(struct comedi_device *dev, - struct comedi_subdevice *s, struct comedi_cmd *cmd) +static int das16m1_ai_cmdtest(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_cmd *cmd) { int err = 0; @@ -245,17 +245,13 @@ static int das16m1_cmd_test(struct comedi_device *dev, return 0; } -static int das16m1_cmd_exec(struct comedi_device *dev, - struct comedi_subdevice *s) +static int das16m1_ai_cmd(struct comedi_device *dev, + struct comedi_subdevice *s) { - struct das16m1_private_struct *devpriv = dev->private; + struct das16m1_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; - unsigned int byte, i; - - /* disable interrupts and internal pacer */ - devpriv->control_state &= ~INTE & ~PACER_MASK; - outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); + unsigned int byte; /* set software count */ devpriv->adc_count = 0; @@ -274,48 +270,47 @@ static int das16m1_cmd_exec(struct comedi_device *dev, */ devpriv->initial_hw_count = comedi_8254_read(devpriv->counter, 1); - /* setup channel/gain queue */ - for (i = 0; i < cmd->chanlist_len; i++) { - outb(i, dev->iobase + DAS16M1_QUEUE_ADDR); - byte = - Q_CHAN(CR_CHAN(cmd->chanlist[i])) | - Q_RANGE(CR_RANGE(cmd->chanlist[i])); - outb(byte, dev->iobase + DAS16M1_QUEUE_DATA); - } + das16m1_ai_set_queue(dev, cmd->chanlist, cmd->chanlist_len); /* enable interrupts and set internal pacer counter mode and counts */ - devpriv->control_state &= ~PACER_MASK; + devpriv->intr_ctrl &= ~DAS16M1_INTR_CTRL_PACER_MASK; if (cmd->convert_src == TRIG_TIMER) { comedi_8254_update_divisors(dev->pacer); comedi_8254_pacer_enable(dev->pacer, 1, 2, true); - devpriv->control_state |= INT_PACER; + devpriv->intr_ctrl |= DAS16M1_INTR_CTRL_PACER_INT; } else { /* TRIG_EXT */ - devpriv->control_state |= EXT_PACER; + devpriv->intr_ctrl |= DAS16M1_INTR_CTRL_PACER_EXT; } /* set control & status register */ byte = 0; - /* if we are using external start trigger (also board dislikes having - * both start and conversion triggers external simultaneously) */ + /* + * If we are using external start trigger (also board dislikes having + * both start and conversion triggers external simultaneously). + */ if (cmd->start_src == TRIG_EXT && cmd->convert_src != TRIG_EXT) - byte |= EXT_TRIG_BIT; + byte |= DAS16M1_CS_EXT_TRIG; - outb(byte, dev->iobase + DAS16M1_CS); - /* clear interrupt bit */ - outb(0, dev->iobase + DAS16M1_CLEAR_INTR); + outb(byte, dev->iobase + DAS16M1_CS_REG); + + /* clear interrupt */ + outb(0, dev->iobase + DAS16M1_CLR_INTR_REG); - devpriv->control_state |= INTE; - outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); + devpriv->intr_ctrl |= DAS16M1_INTR_CTRL_INTE; + outb(devpriv->intr_ctrl, dev->iobase + DAS16M1_INTR_CTRL_REG); return 0; } -static int das16m1_cancel(struct comedi_device *dev, struct comedi_subdevice *s) +static int das16m1_ai_cancel(struct comedi_device *dev, + struct comedi_subdevice *s) { - struct das16m1_private_struct *devpriv = dev->private; + struct das16m1_private *devpriv = dev->private; - devpriv->control_state &= ~INTE & ~PACER_MASK; - outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); + /* disable interrupts and pacer */ + devpriv->intr_ctrl &= ~(DAS16M1_INTR_CTRL_INTE | + DAS16M1_INTR_CTRL_PACER_MASK); + outb(devpriv->intr_ctrl, dev->iobase + DAS16M1_INTR_CTRL_REG); return 0; } @@ -327,67 +322,58 @@ static int das16m1_ai_eoc(struct comedi_device *dev, { unsigned int status; - status = inb(dev->iobase + DAS16M1_CS); - if (status & IRQDATA) + status = inb(dev->iobase + DAS16M1_CS_REG); + if (status & DAS16M1_CS_IRQDATA) return 0; return -EBUSY; } -static int das16m1_ai_rinsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das16m1_ai_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { - struct das16m1_private_struct *devpriv = dev->private; int ret; - int n; - int byte; - - /* disable interrupts and internal pacer */ - devpriv->control_state &= ~INTE & ~PACER_MASK; - outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); - - /* setup channel/gain queue */ - outb(0, dev->iobase + DAS16M1_QUEUE_ADDR); - byte = - Q_CHAN(CR_CHAN(insn->chanspec)) | Q_RANGE(CR_RANGE(insn->chanspec)); - outb(byte, dev->iobase + DAS16M1_QUEUE_DATA); - - for (n = 0; n < insn->n; n++) { - /* clear IRQDATA bit */ - outb(0, dev->iobase + DAS16M1_CLEAR_INTR); + int i; + + das16m1_ai_set_queue(dev, &insn->chanspec, 1); + + for (i = 0; i < insn->n; i++) { + unsigned short val; + + /* clear interrupt */ + outb(0, dev->iobase + DAS16M1_CLR_INTR_REG); /* trigger conversion */ - outb(0, dev->iobase); + outb(0, dev->iobase + DAS16M1_AI_REG); ret = comedi_timeout(dev, s, insn, das16m1_ai_eoc, 0); if (ret) return ret; - data[n] = munge_sample(inw(dev->iobase)); + val = inw(dev->iobase + DAS16M1_AI_REG); + data[i] = DAS16M1_AI_TO_SAMPLE(val); } - return n; + return insn->n; } -static int das16m1_di_rbits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das16m1_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { - unsigned int bits; - - bits = inb(dev->iobase + DAS16M1_DIO) & 0xf; - data[1] = bits; - data[0] = 0; + data[1] = inb(dev->iobase + DAS16M1_DI_REG) & 0xf; return insn->n; } -static int das16m1_do_wbits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) +static int das16m1_do_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { if (comedi_dio_update_state(s, data)) - outb(s->state, dev->iobase + DAS16M1_DIO); + outb(s->state, dev->iobase + DAS16M1_DO_REG); data[1] = s->state; @@ -396,33 +382,33 @@ static int das16m1_do_wbits(struct comedi_device *dev, static void das16m1_handler(struct comedi_device *dev, unsigned int status) { - struct das16m1_private_struct *devpriv = dev->private; - struct comedi_subdevice *s; - struct comedi_async *async; - struct comedi_cmd *cmd; + struct das16m1_private *devpriv = dev->private; + struct comedi_subdevice *s = dev->read_subdev; + struct comedi_async *async = s->async; + struct comedi_cmd *cmd = &async->cmd; u16 num_samples; u16 hw_counter; - s = dev->read_subdev; - async = s->async; - cmd = &async->cmd; - /* figure out how many samples are in fifo */ hw_counter = comedi_8254_read(devpriv->counter, 1); - /* make sure hardware counter reading is not bogus due to initial value - * not having been loaded yet */ + /* + * Make sure hardware counter reading is not bogus due to initial + * value not having been loaded yet. + */ if (devpriv->adc_count == 0 && hw_counter == devpriv->initial_hw_count) { num_samples = 0; } else { - /* The calculation of num_samples looks odd, but it uses the + /* + * The calculation of num_samples looks odd, but it uses the * following facts. 16 bit hardware counter is initialized with * value of zero (which really means 0x1000). The counter * decrements by one on each conversion (when the counter * decrements from zero it goes to 0xffff). num_samples is a * 16 bit variable, so it will roll over in a similar fashion * to the hardware counter. Work it out, and this is what you - * get. */ + * get. + */ num_samples = -hw_counter - devpriv->adc_count; } /* check if we only need some of the points */ @@ -431,10 +417,9 @@ static void das16m1_handler(struct comedi_device *dev, unsigned int status) num_samples = cmd->stop_arg * cmd->chanlist_len; } /* make sure we dont try to get too many points if fifo has overrun */ - if (num_samples > FIFO_SIZE) - num_samples = FIFO_SIZE; + if (num_samples > DAS16M1_AI_FIFO_SZ) + num_samples = DAS16M1_AI_FIFO_SZ; insw(dev->iobase, devpriv->ai_buffer, num_samples); - munge_sample_array(devpriv->ai_buffer, num_samples); comedi_buf_write_samples(s, devpriv->ai_buffer, num_samples); devpriv->adc_count += num_samples; @@ -445,9 +430,11 @@ static void das16m1_handler(struct comedi_device *dev, unsigned int status) } } - /* this probably won't catch overruns since the card doesn't generate - * overrun interrupts, but we might as well try */ - if (status & OVRUN) { + /* + * This probably won't catch overruns since the card doesn't generate + * overrun interrupts, but we might as well try. + */ + if (status & DAS16M1_CS_OVRUN) { async->events |= COMEDI_CB_ERROR; dev_err(dev->class_dev, "fifo overflow\n"); } @@ -455,14 +442,15 @@ static void das16m1_handler(struct comedi_device *dev, unsigned int status) comedi_handle_events(dev, s); } -static int das16m1_poll(struct comedi_device *dev, struct comedi_subdevice *s) +static int das16m1_ai_poll(struct comedi_device *dev, + struct comedi_subdevice *s) { unsigned long flags; unsigned int status; /* prevent race with interrupt handler */ spin_lock_irqsave(&dev->spinlock, flags); - status = inb(dev->iobase + DAS16M1_CS); + status = inb(dev->iobase + DAS16M1_CS_REG); das16m1_handler(dev, status); spin_unlock_irqrestore(&dev->spinlock, flags); @@ -481,9 +469,9 @@ static irqreturn_t das16m1_interrupt(int irq, void *d) /* prevent race with comedi_poll() */ spin_lock(&dev->spinlock); - status = inb(dev->iobase + DAS16M1_CS); + status = inb(dev->iobase + DAS16M1_CS_REG); - if ((status & (IRQDATA | OVRUN)) == 0) { + if ((status & (DAS16M1_CS_IRQDATA | DAS16M1_CS_OVRUN)) == 0) { dev_err(dev->class_dev, "spurious interrupt\n"); spin_unlock(&dev->spinlock); return IRQ_NONE; @@ -492,7 +480,7 @@ static irqreturn_t das16m1_interrupt(int irq, void *d) das16m1_handler(dev, status); /* clear interrupt */ - outb(0, dev->iobase + DAS16M1_CLEAR_INTR); + outb(0, dev->iobase + DAS16M1_CLR_INTR_REG); spin_unlock(&dev->spinlock); return IRQ_HANDLED; @@ -522,15 +510,10 @@ static int das16m1_irq_bits(unsigned int irq) } } -/* - * Options list: - * 0 I/O base - * 1 IRQ - */ static int das16m1_attach(struct comedi_device *dev, struct comedi_devconfig *it) { - struct das16m1_private_struct *devpriv; + struct das16m1_private *devpriv; struct comedi_subdevice *s; int ret; @@ -541,12 +524,12 @@ static int das16m1_attach(struct comedi_device *dev, ret = comedi_request_region(dev, it->options[0], 0x10); if (ret) return ret; - /* Request an additional region for the 8255 */ - ret = __comedi_request_region(dev, dev->iobase + DAS16M1_82C55, + /* Request an additional region for the 8255 and 3rd 8254 */ + ret = __comedi_request_region(dev, dev->iobase + DAS16M1_8255_IOBASE, DAS16M1_SIZE2); if (ret) return ret; - devpriv->extra_iobase = dev->iobase + DAS16M1_82C55; + devpriv->extra_iobase = dev->iobase + DAS16M1_8255_IOBASE; /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ if ((1 << it->options[1]) & 0xdcfc) { @@ -556,12 +539,12 @@ static int das16m1_attach(struct comedi_device *dev, dev->irq = it->options[1]; } - dev->pacer = comedi_8254_init(dev->iobase + DAS16M1_8254_SECOND, + dev->pacer = comedi_8254_init(dev->iobase + DAS16M1_8254_IOBASE2, I8254_OSC_BASE_10MHZ, I8254_IO8, 0); if (!dev->pacer) return -ENOMEM; - devpriv->counter = comedi_8254_init(dev->iobase + DAS16M1_8254_FIRST, + devpriv->counter = comedi_8254_init(dev->iobase + DAS16M1_8254_IOBASE1, 0, I8254_IO8, 0); if (!devpriv->counter) return -ENOMEM; @@ -570,61 +553,62 @@ static int das16m1_attach(struct comedi_device *dev, if (ret) return ret; + /* Analog Input subdevice */ s = &dev->subdevices[0]; - /* ai */ - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_DIFF; - s->n_chan = 8; - s->maxdata = (1 << 12) - 1; - s->range_table = &range_das16m1; - s->insn_read = das16m1_ai_rinsn; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_DIFF; + s->n_chan = 8; + s->maxdata = 0x0fff; + s->range_table = &range_das16m1; + s->insn_read = das16m1_ai_insn_read; if (dev->irq) { dev->read_subdev = s; - s->subdev_flags |= SDF_CMD_READ; - s->len_chanlist = 256; - s->do_cmdtest = das16m1_cmd_test; - s->do_cmd = das16m1_cmd_exec; - s->cancel = das16m1_cancel; - s->poll = das16m1_poll; + s->subdev_flags |= SDF_CMD_READ; + s->len_chanlist = 256; + s->do_cmdtest = das16m1_ai_cmdtest; + s->do_cmd = das16m1_ai_cmd; + s->cancel = das16m1_ai_cancel; + s->poll = das16m1_ai_poll; + s->munge = das16m1_ai_munge; } + /* Digital Input subdevice */ s = &dev->subdevices[1]; - /* di */ - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = 4; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = das16m1_di_rbits; - + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = 4; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = das16m1_di_insn_bits; + + /* Digital Output subdevice */ s = &dev->subdevices[2]; - /* do */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = 4; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = das16m1_do_wbits; - + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 4; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = das16m1_do_insn_bits; + + /* Digital I/O subdevice (8255) */ s = &dev->subdevices[3]; - /* 8255 */ - ret = subdev_8255_init(dev, s, NULL, DAS16M1_82C55); + ret = subdev_8255_init(dev, s, NULL, DAS16M1_8255_IOBASE); if (ret) return ret; /* initialize digital output lines */ - outb(0, dev->iobase + DAS16M1_DIO); + outb(0, dev->iobase + DAS16M1_DO_REG); /* set the interrupt level */ - devpriv->control_state = das16m1_irq_bits(dev->irq) << 4; - outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); + devpriv->intr_ctrl = DAS16M1_INTR_CTRL_IRQ(das16m1_irq_bits(dev->irq)); + outb(devpriv->intr_ctrl, dev->iobase + DAS16M1_INTR_CTRL_REG); return 0; } static void das16m1_detach(struct comedi_device *dev) { - struct das16m1_private_struct *devpriv = dev->private; + struct das16m1_private *devpriv = dev->private; if (devpriv) { if (devpriv->extra_iobase) @@ -643,5 +627,5 @@ static struct comedi_driver das16m1_driver = { module_comedi_driver(das16m1_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_DESCRIPTION("Comedi driver for CIO-DAS16/M1 ISA cards"); MODULE_LICENSE("GPL"); |