and compatibles
COMEDI - Linux Control and Measurement Device Interface
- Copyright (C) 1998 David A. Schleef <ds@stm.lbl.gov>
+ Copyright (C) 1998 David A. Schleef <ds@schleef.org>
Janne Jalkanen <jalkanen@cs.hut.fi>
Eric Bunn <ebu@cs.hut.fi>
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+/*
+Driver: pcl711.o
+Description: Advantech PCL-711 and 711b, ADLink ACL-8112
+Author: ds, Janne Jalkanen <jalkanen@cs.hut.fi>, Eric Bunn <ebu@cs.hut.fi>
+Status: mostly complete
+Devices: [Advantech] PCL-711 (pcl711), PCL-711B (pcl711b),
+ [AdLink] ACL-8112HG (acl8112hg), ACL-8112DG (acl8112dg)
+
+Since these boards do not have DMA or FIFOs, only immediate mode is
+supported.
+
+*/
/*
Dave Andruczyk <dave@tech.buffalostate.edu> also wrote a
*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/malloc.h>
-#include <linux/errno.h>
+#include <linux/comedidev.h>
+
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/timer.h>
-#include <asm/io.h>
-#include <linux/comedidev.h>
+
#include "8253.h"
#define PCL711_DO_LO 13
#define PCL711_DO_HI 14
-static comedi_lrange range_pcl711b_ai = { 5, {
+static const comedi_lrange range_pcl711b_ai = { 5, {
BIP_RANGE( 5 ),
BIP_RANGE( 2.5 ),
BIP_RANGE( 1.25 ),
BIP_RANGE( 0.625 ),
BIP_RANGE( 0.3125 )
}};
-static comedi_lrange range_acl8112hg_ai = { 12, {
+static const comedi_lrange range_acl8112hg_ai = { 12, {
BIP_RANGE( 5 ),
BIP_RANGE( 0.5 ),
BIP_RANGE( 0.05 ),
BIP_RANGE( 0.1 ),
BIP_RANGE( 0.01 )
}};
-static comedi_lrange range_acl8112dg_ai = { 9, {
+static const comedi_lrange range_acl8112dg_ai = { 9, {
BIP_RANGE( 5 ),
BIP_RANGE( 2.5 ),
BIP_RANGE( 1.25 ),
BIP_RANGE( 10 )
}};
-typedef int bool;
-
/*
* flags
*/
#define PCL711_TIMEOUT 100
#define PCL711_DRDY 0x10
-int i8253_osc_base = 500; /* 2 Mhz */
+static const int i8253_osc_base = 500; /* 2 Mhz */
typedef struct {
- char *name;
+ const char *name;
int is_pcl711b;
int is_8112;
int is_dg;
int n_aichan;
int n_aochan;
int maxirq;
- comedi_lrange * ai_range_type;
+ const comedi_lrange * ai_range_type;
} boardtype;
-static boardtype boardtypes[] =
+static const boardtype boardtypes[] =
{
{"pcl711", 0, 0, 0, 5, 8, 1, 0, &range_bipolar5},
{"pcl711b", 1, 0, 0, 5, 8, 1, 7, &range_pcl711b_ai},
{"acl8112dg", 0, 1, 1, 9, 16, 2, 15, &range_acl8112dg_ai},
};
#define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
-#define this_board ((boardtype *)dev->board_ptr)
+#define this_board ((const boardtype *)dev->board_ptr)
static int pcl711_attach(comedi_device *dev,comedi_devconfig *it);
static int pcl711_detach(comedi_device *dev);
-comedi_driver driver_pcl711={
+static comedi_driver driver_pcl711={
driver_name: "pcl711",
module: THIS_MODULE,
attach: pcl711_attach,
detach: pcl711_detach,
- board_name: boardtypes,
+ board_name: &boardtypes[0].name,
num_names: n_boardtypes,
offset: sizeof(boardtype),
};
int aip[8];
int mode;
lsampl_t ao_readback[2];
+ unsigned int divisor1;
+ unsigned int divisor2;
} pcl711_private;
#define devpriv ((pcl711_private *)dev->private)
-static void pcl711_interrupt(int irq, void *d, struct pt_regs *regs)
+static irqreturn_t pcl711_interrupt(int irq, void *d PT_REGS_ARG)
{
int lo, hi;
int data;
outb(0, dev->iobase + PCL711_MODE);
}
- comedi_done(dev,s);
+ s->async->events |= COMEDI_CB_EOA;
}
+ comedi_event(dev, s, s->async->events);
+ return IRQ_HANDLED;
}
static void pcl711_set_changain(comedi_device * dev, int chan)
int chan_register;
outb(CR_RANGE(chan), dev->iobase + PCL711_GAIN);
-
+
chan_register=CR_CHAN(chan);
if (this_board->is_8112) {
pcl711_set_changain(dev,insn->chanspec);
- /*
- a sensible precaution to wait for the mux to
- settle here. is 10us enough?
- */
- udelay(10);
-
for(n=0;n<insn->n;n++){
/*
* Write the correct mode (software polling) and start polling by writing
hi = inb(dev->iobase + PCL711_AD_HI);
if (!(hi & PCL711_DRDY))
goto ok;
+ comedi_udelay(1);
}
rt_printk("comedi%d: pcl711: A/D timeout\n", dev->minor);
return -ETIME;
-
+
ok:
lo = inb(dev->iobase + PCL711_AD_LO);
return n;
}
-#ifdef CONFIG_COMEDI_TRIG
-static int pcl711_ai_mode4(comedi_device * dev, comedi_subdevice * s, comedi_trig * it)
+static int pcl711_ai_cmdtest(comedi_device *dev, comedi_subdevice *s,
+ comedi_cmd *cmd)
{
- if (!this_board->is_pcl711b || dev->irq == 0)
- return -EINVAL;
+ int tmp;
+ int err = 0;
- pcl711_set_changain(dev,it->chanlist[0]);
+ /* step 1 */
+ tmp=cmd->start_src;
+ cmd->start_src &= TRIG_NOW;
+ if(!cmd->start_src || tmp!=cmd->start_src)err++;
- /*
- * Set mode to "no internal trigger"
- */
- outb(devpriv->mode | 3, dev->iobase + PCL711_MODE);
+ tmp=cmd->scan_begin_src;
+ cmd->scan_begin_src &= TRIG_TIMER|TRIG_EXT;
+ if(!cmd->scan_begin_src || tmp!=cmd->scan_begin_src)err++;
+
+ tmp=cmd->convert_src;
+ cmd->convert_src &= TRIG_NOW;
+ if(!cmd->convert_src || tmp!=cmd->convert_src)err++;
+
+ tmp=cmd->scan_end_src;
+ cmd->scan_end_src &= TRIG_COUNT;
+ if(!cmd->scan_end_src || tmp!=cmd->scan_end_src)err++;
+
+ tmp=cmd->stop_src;
+ cmd->stop_src &= TRIG_COUNT|TRIG_NONE;
+ if(!cmd->stop_src || tmp!=cmd->stop_src)err++;
+
+ if(err)return 1;
+
+ /* step 2 */
+
+ if(cmd->scan_begin_src!=TRIG_TIMER &&
+ cmd->scan_begin_src!=TRIG_EXT)err++;
+ if(cmd->stop_src!=TRIG_COUNT &&
+ cmd->stop_src!=TRIG_NONE)err++;
+
+ if(err)return 2;
+
+ /* step 3 */
+
+ if(cmd->start_arg!=0){
+ cmd->start_arg=0;
+ err++;
+ }
+ if(cmd->scan_begin_src==TRIG_EXT){
+ if(cmd->scan_begin_arg!=0){
+ cmd->scan_begin_arg=0;
+ err++;
+ }
+ }else{
+#define MAX_SPEED 1000
+#define TIMER_BASE 100
+ if(cmd->scan_begin_arg<MAX_SPEED){
+ cmd->scan_begin_arg=MAX_SPEED;
+ err++;
+ }
+ }
+ if(cmd->convert_arg!=0){
+ cmd->convert_arg=0;
+ err++;
+ }
+ if(cmd->scan_end_arg!=cmd->chanlist_len){
+ cmd->scan_end_arg=cmd->chanlist_len;
+ err++;
+ }
+ if(cmd->stop_src==TRIG_NONE){
+ if(cmd->stop_arg!=0){
+ cmd->stop_arg=0;
+ err++;
+ }
+ }else{
+ /* ignore */
+ }
+
+ if(err)return 3;
+
+ /* step 4 */
+
+ if(cmd->scan_begin_src==TRIG_TIMER){
+ tmp = cmd->scan_begin_arg;
+ i8253_cascade_ns_to_timer_2div(TIMER_BASE,
+ &devpriv->divisor1,&devpriv->divisor2,
+ &cmd->scan_begin_arg, cmd->flags&TRIG_ROUND_MASK);
+ if(tmp!=cmd->scan_begin_arg)
+ err++;
+ }
+
+ if(err)return 4;
return 0;
}
-#endif
-
-#ifdef CONFIG_COMEDI_TRIG
-static int pcl711_ai_mode1(comedi_device * dev, comedi_subdevice * s, comedi_trig * it)
+static int pcl711_ai_cmd(comedi_device *dev, comedi_subdevice *s)
{
int timer1,timer2;
+ comedi_cmd *cmd = &s->async->cmd;
- if (!dev->irq)
- return -EINVAL;
-
- pcl711_set_changain(dev,it->chanlist[0]);
+ pcl711_set_changain(dev,cmd->chanlist[0]);
- /*
- * Set timers
- * timer chip is an 8253, with timers 1 and 2
- * cascaded
- * 0x74 = Select Counter 1 | LSB/MSB | Mode=2 | Binary
- * Mode 2 = Rate generator
- *
- * 0xb4 = Select Counter 2 | LSB/MSB | Mode=2 | Binary
- */
+ if(cmd->scan_begin_src==TRIG_TIMER){
+ /*
+ * Set timers
+ * timer chip is an 8253, with timers 1 and 2
+ * cascaded
+ * 0x74 = Select Counter 1 | LSB/MSB | Mode=2 | Binary
+ * Mode 2 = Rate generator
+ *
+ * 0xb4 = Select Counter 2 | LSB/MSB | Mode=2 | Binary
+ */
- i8253_cascade_ns_to_timer(i8253_osc_base,&timer1,&timer2,&it->trigvar,TRIG_ROUND_NEAREST);
+ i8253_cascade_ns_to_timer(i8253_osc_base,&timer1,&timer2,
+ &cmd->scan_begin_arg,TRIG_ROUND_NEAREST);
- outb(0x74, dev->iobase + PCL711_CTRCTL);
- outb(timer1 & 0xff, dev->iobase + PCL711_CTR1);
- outb((timer1 >> 8) & 0xff, dev->iobase + PCL711_CTR1);
- outb(0xb4, dev->iobase + PCL711_CTRCTL);
- outb(timer2 & 0xff, dev->iobase + PCL711_CTR2);
- outb((timer2 >> 8) & 0xff, dev->iobase + PCL711_CTR2);
+ outb(0x74, dev->iobase + PCL711_CTRCTL);
+ outb(timer1 & 0xff, dev->iobase + PCL711_CTR1);
+ outb((timer1 >> 8) & 0xff, dev->iobase + PCL711_CTR1);
+ outb(0xb4, dev->iobase + PCL711_CTRCTL);
+ outb(timer2 & 0xff, dev->iobase + PCL711_CTR2);
+ outb((timer2 >> 8) & 0xff, dev->iobase + PCL711_CTR2);
- /* clear pending interrupts (just in case) */
- outb(0, dev->iobase + PCL711_CLRINTR);
+ /* clear pending interrupts (just in case) */
+ outb(0, dev->iobase + PCL711_CLRINTR);
- /*
- * Set mode to IRQ transfer
- */
- outb(devpriv->mode | 6, dev->iobase + PCL711_MODE);
+ /*
+ * Set mode to IRQ transfer
+ */
+ outb(devpriv->mode | 6, dev->iobase + PCL711_MODE);
+ }else{
+ /* external trigger */
+ outb(devpriv->mode | 3, dev->iobase + PCL711_MODE);
+ }
return 0;
}
-#endif
/*
analog output
printk("comedi%d: pcl711: remove\n", dev->minor);
if (dev->irq)
- free_irq(dev->irq, dev);
+ comedi_free_irq(dev->irq, dev);
if (dev->iobase)
release_region(dev->iobase, PCL711_SIZE);
static int pcl711_attach(comedi_device * dev, comedi_devconfig * it)
{
int ret;
- int iobase;
- int irq;
+ unsigned long iobase;
+ unsigned int irq;
comedi_subdevice *s;
/* claim our I/O space */
iobase = it->options[0];
- printk("comedi%d: pcl711: 0x%04x ", dev->minor, iobase);
- if (check_region(iobase, PCL711_SIZE) < 0) {
+ printk("comedi%d: pcl711: 0x%04lx ", dev->minor, iobase);
+ if (!request_region(iobase, PCL711_SIZE, "pcl711")) {
printk("I/O port conflict\n");
return -EIO;
}
- request_region(iobase, PCL711_SIZE, "pcl711");
dev->iobase = iobase;
/* there should be a sanity check here */
/* grab our IRQ */
irq = it->options[1];
- if (irq < 0 || irq > this_board->maxirq) {
+ if (irq > this_board->maxirq) {
printk("irq out of range\n");
return -EINVAL;
}
if (irq) {
if (comedi_request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) {
- printk("unable to allocate irq %d\n", irq);
+ printk("unable to allocate irq %u\n", irq);
return -EINVAL;
} else {
- printk("( irq = %d )\n", irq);
+ printk("( irq = %u )\n", irq);
}
}
dev->irq = irq;
- dev->n_subdevices = 4;
- if((ret=alloc_subdevices(dev))<0)
+ if((ret=alloc_subdevices(dev, 4))<0)
return ret;
if((ret=alloc_private(dev,sizeof(pcl711_private)))<0)
return ret;
s = dev->subdevices + 0;
/* AI subdevice */
s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE;
+ s->subdev_flags = SDF_READABLE | SDF_GROUND;
s->n_chan = this_board->n_aichan;
s->maxdata = 0xfff;
s->len_chanlist = 1;
s->range_table = this_board->ai_range_type;
s->insn_read = pcl711_ai_insn;
-#ifdef CONFIG_COMEDI_TRIG
- s->trig[1] = pcl711_ai_mode1;
- s->trig[4] = pcl711_ai_mode4;
-#endif
+ if(irq){
+ dev->read_subdev = s;
+ s->subdev_flags |= SDF_CMD_READ;
+ s->do_cmdtest = pcl711_ai_cmdtest;
+ s->do_cmd = pcl711_ai_cmd;
+ }
s++;
/* AO subdevice */
s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITEABLE;
+ s->subdev_flags = SDF_WRITABLE;
s->n_chan = this_board->n_aochan;
s->maxdata = 0xfff;
s->len_chanlist = 1;
s++;
/* 16-bit digital out */
s->type = COMEDI_SUBD_DO;
- s->subdev_flags = SDF_WRITEABLE;
+ s->subdev_flags = SDF_WRITABLE;
s->n_chan = 16;
s->maxdata = 1;
s->len_chanlist = 16;
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