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|
/*
* comedi/drivers/pcl812.c
*
* Author: Michal Dobes <dobes@tesnet.cz>
*
* hardware driver for Advantech cards
* card: PCL-812, PCL-812PG, PCL-813, PCL-813B
* driver: pcl812, pcl812pg, pcl813, pcl813b
* and for ADlink cards
* card: ACL-8112DG, ACL-8112HG, ACL-8112PG, ACL-8113, ACL-8216
* driver: acl8112dg, acl8112hg, acl8112pg, acl8113, acl8216
* and for ICP DAS cards
* card: ISO-813, A-821PGH, A-821PGL, A-821PGL-NDA, A-822PGH, A-822PGL,
* driver: iso813, a821pgh, a-821pgl, a-821pglnda, a822pgh, a822pgl,
* card: A-823PGH, A-823PGL, A-826PG
* driver: a823pgh, a823pgl, a826pg
*/
/*
Driver: pcl812
Description: Advantech PCL-812/PG, PCL-813/B,
ADLink ACL-8112DG/HG/PG, ACL-8113, ACL-8216,
ICP DAS A-821PGH/PGL/PGL-NDA, A-822PGH/PGL, A-823PGH/PGL, A-826PG,
ICP DAS ISO-813
Author: Michal Dobes <dobes@tesnet.cz>
Devices: [Advantech] PCL-812 (pcl812), PCL-812PG (pcl812pg),
PCL-813 (pcl813), PCL-813B (pcl813b), [ADLink] ACL-8112DG (acl8112dg),
ACL-8112HG (acl8112hg), ACL-8113 (acl-8113), ACL-8216 (acl8216),
[ICP] ISO-813 (iso813), A-821PGH (a821pgh), A-821PGL (a821pgl),
A-821PGL-NDA (a821pclnda), A-822PGH (a822pgh), A-822PGL (a822pgl),
A-823PGH (a823pgh), A-823PGL (a823pgl), A-826PG (a826pg)
Updated: Mon, 06 Aug 2007 12:03:15 +0100
Status: works (I hope. My board fire up under my hands
and I cann't test all features.)
This driver supports insn and cmd interfaces. Some boards support only insn
becouse their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
Data transfer over DMA is supported only when you measure only one
channel, this is too hardware limitation of these boards.
Options for PCL-812:
[0] - IO Base
[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
[2] - DMA (0=disable, 1, 3)
[3] - 0=trigger source is internal 8253 with 2MHz clock
1=trigger source is external
[4] - 0=A/D input range is +/-10V
1=A/D input range is +/-5V
2=A/D input range is +/-2.5V
3=A/D input range is +/-1.25V
4=A/D input range is +/-0.625V
5=A/D input range is +/-0.3125V
[5] - 0=D/A outputs 0-5V (internal reference -5V)
1=D/A outputs 0-10V (internal reference -10V)
2=D/A outputs unknow (external reference)
Options for PCL-812PG, ACL-8112PG:
[0] - IO Base
[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
[2] - DMA (0=disable, 1, 3)
[3] - 0=trigger source is internal 8253 with 2MHz clock
1=trigger source is external
[4] - 0=A/D have max +/-5V input
1=A/D have max +/-10V input
[5] - 0=D/A outputs 0-5V (internal reference -5V)
1=D/A outputs 0-10V (internal reference -10V)
2=D/A outputs unknow (external reference)
Options for ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH, ACL-8216, A-826PG:
[0] - IO Base
[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
[2] - DMA (0=disable, 1, 3)
[3] - 0=trigger source is internal 8253 with 2MHz clock
1=trigger source is external
[4] - 0=A/D channels are S.E.
1=A/D channels are DIFF
[5] - 0=D/A outputs 0-5V (internal reference -5V)
1=D/A outputs 0-10V (internal reference -10V)
2=D/A outputs unknow (external reference)
Options for A-821PGL/PGH:
[0] - IO Base
[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
[2] - 0=A/D channels are S.E.
1=A/D channels are DIFF
[3] - 0=D/A output 0-5V (internal reference -5V)
1=D/A output 0-10V (internal reference -10V)
Options for A-821PGL-NDA:
[0] - IO Base
[1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
[2] - 0=A/D channels are S.E.
1=A/D channels are DIFF
Options for PCL-813:
[0] - IO Base
Options for PCL-813B:
[0] - IO Base
[1] - 0= bipolar inputs
1= unipolar inputs
Options for ACL-8113, ISO-813:
[0] - IO Base
[1] - 0= 10V bipolar inputs
1= 10V unipolar inputs
2= 20V bipolar inputs
3= 20V unipolar inputs
*/
#include "../comedidev.h"
#include <linux/delay.h>
#include <linux/ioport.h>
#include <asm/dma.h>
#include "8253.h"
#undef PCL812_EXTDEBUG /* if this is defined then a lot of messages is printed */
// hardware types of the cards
#define boardPCL812PG 0 /* and ACL-8112PG */
#define boardPCL813B 1
#define boardPCL812 2
#define boardPCL813 3
#define boardISO813 5
#define boardACL8113 6
#define boardACL8112 7 /* ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH */
#define boardACL8216 8 /* and ICP DAS A-826PG */
#define boardA821 9 /* PGH, PGL, PGL/NDA versions */
#define PCLx1x_IORANGE 16
#define PCL812_CTR0 0
#define PCL812_CTR1 1
#define PCL812_CTR2 2
#define PCL812_CTRCTL 3
#define PCL812_AD_LO 4
#define PCL812_DA1_LO 4
#define PCL812_AD_HI 5
#define PCL812_DA1_HI 5
#define PCL812_DA2_LO 6
#define PCL812_DI_LO 6
#define PCL812_DA2_HI 7
#define PCL812_DI_HI 7
#define PCL812_CLRINT 8
#define PCL812_GAIN 9
#define PCL812_MUX 10
#define PCL812_MODE 11
#define PCL812_CNTENABLE 10
#define PCL812_SOFTTRIG 12
#define PCL812_DO_LO 13
#define PCL812_DO_HI 14
#define PCL812_DRDY 0x10 /* =0 data ready */
#define ACL8216_STATUS 8 /* 5. bit signalize data ready */
#define ACL8216_DRDY 0x20 /* =0 data ready */
#define MAX_CHANLIST_LEN 256 /* length of scan list */
static const comedi_lrange range_pcl812pg_ai = { 5, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
BIP_RANGE(0.3125),
}
};
static const comedi_lrange range_pcl812pg2_ai = { 5, {
BIP_RANGE(10),
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
}
};
static const comedi_lrange range812_bipolar1_25 = { 1, {
BIP_RANGE(1.25),
}
};
static const comedi_lrange range812_bipolar0_625 = { 1, {
BIP_RANGE(0.625),
}
};
static const comedi_lrange range812_bipolar0_3125 = { 1, {
BIP_RANGE(0.3125),
}
};
static const comedi_lrange range_pcl813b_ai = { 4, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
}
};
static const comedi_lrange range_pcl813b2_ai = { 4, {
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
}
};
static const comedi_lrange range_iso813_1_ai = { 5, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
BIP_RANGE(0.3125),
}
};
static const comedi_lrange range_iso813_1_2_ai = { 5, {
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
UNI_RANGE(0.625),
}
};
static const comedi_lrange range_iso813_2_ai = { 4, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
}
};
static const comedi_lrange range_iso813_2_2_ai = { 4, {
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
}
};
static const comedi_lrange range_acl8113_1_ai = { 4, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
}
};
static const comedi_lrange range_acl8113_1_2_ai = { 4, {
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
}
};
static const comedi_lrange range_acl8113_2_ai = { 3, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
}
};
static const comedi_lrange range_acl8113_2_2_ai = { 3, {
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
}
};
static const comedi_lrange range_acl8112dg_ai = { 9, {
BIP_RANGE(5),
BIP_RANGE(2.5),
BIP_RANGE(1.25),
BIP_RANGE(0.625),
UNI_RANGE(10),
UNI_RANGE(5),
UNI_RANGE(2.5),
UNI_RANGE(1.25),
BIP_RANGE(10),
}
};
static const comedi_lrange range_acl8112hg_ai = { 12, {
BIP_RANGE(5),
BIP_RANGE(0.5),
BIP_RANGE(0.05),
BIP_RANGE(0.005),
UNI_RANGE(10),
UNI_RANGE(1),
UNI_RANGE(0.1),
UNI_RANGE(0.01),
BIP_RANGE(10),
BIP_RANGE(1),
BIP_RANGE(0.1),
BIP_RANGE(0.01),
}
};
static const comedi_lrange range_a821pgh_ai = { 4, {
BIP_RANGE(5),
BIP_RANGE(0.5),
BIP_RANGE(0.05),
BIP_RANGE(0.005),
}
};
static int pcl812_attach(comedi_device * dev, comedi_devconfig * it);
static int pcl812_detach(comedi_device * dev);
typedef struct {
const char *name; // board name
int board_type; // type of this board
int n_aichan; // num of AI chans in S.E.
int n_aichan_diff; // DIFF num of chans
int n_aochan; // num of DA chans
int n_dichan; // DI and DO chans
int n_dochan;
int ai_maxdata; // AI resolution
unsigned int ai_ns_min; // max sample speed of card v ns
unsigned int i8254_osc_base; // clock base
const comedi_lrange *rangelist_ai; // rangelist for A/D
const comedi_lrange *rangelist_ao; // rangelist for D/A
unsigned int IRQbits; // allowed IRQ
unsigned char DMAbits; // allowed DMA chans
unsigned char io_range; // iorange for this board
unsigned char haveMPC508; // 1=board use MPC508A multiplexor
} boardtype;
static const boardtype boardtypes[] = {
{"pcl812", boardPCL812, 16, 0, 2, 16, 16, 0x0fff,
33000, 500, &range_bipolar10, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"pcl812pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
33000, 500, &range_pcl812pg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"acl8112pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
10000, 500, &range_pcl812pg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"acl8112dg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
10000, 500, &range_acl8112dg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
{"acl8112hg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
10000, 500, &range_acl8112hg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
{"a821pgl", boardA821, 16, 8, 1, 16, 16, 0x0fff,
10000, 500, &range_pcl813b_ai, &range_unipolar5,
0x000c, 0x00, PCLx1x_IORANGE, 0},
{"a821pglnda", boardA821, 16, 8, 0, 0, 0, 0x0fff,
10000, 500, &range_pcl813b_ai, NULL,
0x000c, 0x00, PCLx1x_IORANGE, 0},
{"a821pgh", boardA821, 16, 8, 1, 16, 16, 0x0fff,
10000, 500, &range_a821pgh_ai, &range_unipolar5,
0x000c, 0x00, PCLx1x_IORANGE, 0},
{"a822pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
10000, 500, &range_acl8112dg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"a822pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
10000, 500, &range_acl8112hg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"a823pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
8000, 500, &range_acl8112dg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"a823pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
8000, 500, &range_acl8112hg_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
{"pcl813", boardPCL813, 32, 0, 0, 0, 0, 0x0fff,
0, 0, &range_pcl813b_ai, NULL,
0x0000, 0x00, PCLx1x_IORANGE, 0},
{"pcl813b", boardPCL813B, 32, 0, 0, 0, 0, 0x0fff,
0, 0, &range_pcl813b_ai, NULL,
0x0000, 0x00, PCLx1x_IORANGE, 0},
{"acl8113", boardACL8113, 32, 0, 0, 0, 0, 0x0fff,
0, 0, &range_acl8113_1_ai, NULL,
0x0000, 0x00, PCLx1x_IORANGE, 0},
{"iso813", boardISO813, 32, 0, 0, 0, 0, 0x0fff,
0, 0, &range_iso813_1_ai, NULL,
0x0000, 0x00, PCLx1x_IORANGE, 0},
{"acl8216", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
10000, 500, &range_pcl813b2_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
{"a826pg", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
10000, 500, &range_pcl813b2_ai, &range_unipolar5,
0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
};
#define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
#define this_board ((const boardtype *)dev->board_ptr)
static comedi_driver driver_pcl812 = {
driver_name:"pcl812",
module:THIS_MODULE,
attach:pcl812_attach,
detach:pcl812_detach,
board_name:&boardtypes[0].name,
num_names:n_boardtypes,
offset:sizeof(boardtype),
};
COMEDI_INITCLEANUP(driver_pcl812);
typedef struct {
unsigned char valid; // =1 device is OK
unsigned char dma; // >0 use dma ( usedDMA channel)
unsigned char use_diff; // =1 diff inputs
unsigned char use_MPC; // 1=board uses MPC508A multiplexor
unsigned char use_ext_trg; // 1=board uses external trigger
unsigned char range_correction; // =1 we must add 1 to range number
unsigned char old_chan_reg; // lastly used chan/gain pair
unsigned char old_gain_reg;
unsigned char mode_reg_int; // there is stored INT number for some card
unsigned char ai_neverending; // =1 we do unlimited AI
unsigned char ai_eos; // 1=EOS wake up
unsigned char ai_dma; // =1 we use DMA
unsigned int ai_poll_ptr; // how many sampes transfer poll
unsigned int ai_scans; // len of scanlist
unsigned int ai_act_scan; // how many scans we finished
unsigned int ai_chanlist[MAX_CHANLIST_LEN]; // our copy of channel/range list
unsigned int ai_n_chan; // how many channels is measured
unsigned int ai_flags; // flaglist
unsigned int ai_data_len; // len of data buffer
short *ai_data; // data buffer
unsigned int ai_is16b; // =1 we have 16 bit card
unsigned long dmabuf[2]; // PTR to DMA buf
unsigned int dmapages[2]; // how many pages we have allocated
unsigned int hwdmaptr[2]; // HW PTR to DMA buf
unsigned int hwdmasize[2]; // DMA buf size in bytes
unsigned int dmabytestomove[2]; // how many bytes DMA transfer
int next_dma_buf; // which buffer is next to use
unsigned int dma_runs_to_end; // how many times we must switch DMA buffers
unsigned int last_dma_run; // how many bytes to transfer on last DMA buffer
unsigned int max_812_ai_mode0_rangewait; // setling time for gain
unsigned int ao_readback[2]; // data for AO readback
} pcl812_private;
#define devpriv ((pcl812_private *)dev->private)
/*
==============================================================================
*/
static void start_pacer(comedi_device * dev, int mode, unsigned int divisor1,
unsigned int divisor2);
static void setup_range_channel(comedi_device * dev, comedi_subdevice * s,
unsigned int rangechan, char wait);
static int pcl812_ai_cancel(comedi_device * dev, comedi_subdevice * s);
/*
==============================================================================
*/
static int pcl812_ai_insn_read(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
int n;
int timeout, hi;
outb(devpriv->mode_reg_int | 1, dev->iobase + PCL812_MODE); /* select software trigger */
setup_range_channel(dev, s, insn->chanspec, 1); // select channel and renge
for (n = 0; n < insn->n; n++) {
outb(255, dev->iobase + PCL812_SOFTTRIG); /* start conversion */
comedi_udelay(5);
timeout = 50; /* wait max 50us, it must finish under 33us */
while (timeout--) {
hi = inb(dev->iobase + PCL812_AD_HI);
if (!(hi & PCL812_DRDY))
goto conv_finish;
comedi_udelay(1);
}
rt_printk
("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
dev->minor, dev->board_name, dev->iobase);
outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
return -ETIME;
conv_finish:
data[n] = ((hi & 0xf) << 8) | inb(dev->iobase + PCL812_AD_LO);
}
outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
return n;
}
/*
==============================================================================
*/
static int acl8216_ai_insn_read(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
int n;
int timeout;
outb(1, dev->iobase + PCL812_MODE); /* select software trigger */
setup_range_channel(dev, s, insn->chanspec, 1); // select channel and renge
for (n = 0; n < insn->n; n++) {
outb(255, dev->iobase + PCL812_SOFTTRIG); /* start conversion */
comedi_udelay(5);
timeout = 50; /* wait max 50us, it must finish under 33us */
while (timeout--) {
if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY))
goto conv_finish;
comedi_udelay(1);
}
rt_printk
("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
dev->minor, dev->board_name, dev->iobase);
outb(0, dev->iobase + PCL812_MODE);
return -ETIME;
conv_finish:
data[n] =
(inb(dev->iobase +
PCL812_AD_HI) << 8) | inb(dev->iobase +
PCL812_AD_LO);
}
outb(0, dev->iobase + PCL812_MODE);
return n;
}
/*
==============================================================================
*/
static int pcl812_ao_insn_write(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
int chan = CR_CHAN(insn->chanspec);
int i;
for (i = 0; i < insn->n; i++) {
outb((data[i] & 0xff),
dev->iobase + (chan ? PCL812_DA2_LO : PCL812_DA1_LO));
outb((data[i] >> 8) & 0x0f,
dev->iobase + (chan ? PCL812_DA2_HI : PCL812_DA1_HI));
devpriv->ao_readback[chan] = data[i];
}
return i;
}
/*
==============================================================================
*/
static int pcl812_ao_insn_read(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
int chan = CR_CHAN(insn->chanspec);
int i;
for (i = 0; i < insn->n; i++) {
data[i] = devpriv->ao_readback[chan];
}
return i;
}
/*
==============================================================================
*/
static int pcl812_di_insn_bits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
if (insn->n != 2)
return -EINVAL;
data[1] = inb(dev->iobase + PCL812_DI_LO);
data[1] |= inb(dev->iobase + PCL812_DI_HI) << 8;
return 2;
}
/*
==============================================================================
*/
static int pcl812_do_insn_bits(comedi_device * dev, comedi_subdevice * s,
comedi_insn * insn, unsigned int * data)
{
if (insn->n != 2)
return -EINVAL;
if (data[0]) {
s->state &= ~data[0];
s->state |= data[0] & data[1];
outb(s->state & 0xff, dev->iobase + PCL812_DO_LO);
outb((s->state >> 8), dev->iobase + PCL812_DO_HI);
}
data[1] = s->state;
return 2;
}
#ifdef PCL812_EXTDEBUG
/*
==============================================================================
*/
static void pcl812_cmdtest_out(int e, comedi_cmd * cmd)
{
rt_printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
rt_printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
rt_printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
cmd->scan_end_src);
rt_printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
}
#endif
/*
==============================================================================
*/
static int pcl812_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
comedi_cmd * cmd)
{
int err = 0;
int tmp, divisor1, divisor2;
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
pcl812_cmdtest_out(-1, cmd);
#endif
/* step 1: make sure trigger sources are trivially valid */
tmp = cmd->start_src;
cmd->start_src &= TRIG_NOW;
if (!cmd->start_src || tmp != cmd->start_src)
err++;
tmp = cmd->scan_begin_src;
cmd->scan_begin_src &= TRIG_FOLLOW;
if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
err++;
tmp = cmd->convert_src;
if (devpriv->use_ext_trg) {
cmd->convert_src &= TRIG_EXT;
} else {
cmd->convert_src &= TRIG_TIMER;
}
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) {
#ifdef PCL812_EXTDEBUG
pcl812_cmdtest_out(1, cmd);
rt_printk
("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
err);
#endif
return 1;
}
/* step 2: make sure trigger sources are unique and mutually compatible */
if (cmd->start_src != TRIG_NOW) {
cmd->start_src = TRIG_NOW;
err++;
}
if (cmd->scan_begin_src != TRIG_FOLLOW) {
cmd->scan_begin_src = TRIG_FOLLOW;
err++;
}
if (devpriv->use_ext_trg) {
if (cmd->convert_src != TRIG_EXT) {
cmd->convert_src = TRIG_EXT;
err++;
}
} else {
if (cmd->convert_src != TRIG_TIMER) {
cmd->convert_src = TRIG_TIMER;
err++;
}
}
if (cmd->scan_end_src != TRIG_COUNT) {
cmd->scan_end_src = TRIG_COUNT;
err++;
}
if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
err++;
if (err) {
#ifdef PCL812_EXTDEBUG
pcl812_cmdtest_out(2, cmd);
rt_printk
("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
err);
#endif
return 2;
}
/* step 3: make sure arguments are trivially compatible */
if (cmd->start_arg != 0) {
cmd->start_arg = 0;
err++;
}
if (cmd->scan_begin_arg != 0) {
cmd->scan_begin_arg = 0;
err++;
}
if (cmd->convert_src == TRIG_TIMER) {
if (cmd->convert_arg < this_board->ai_ns_min) {
cmd->convert_arg = this_board->ai_ns_min;
err++;
}
} else { /* TRIG_EXT */
if (cmd->convert_arg != 0) {
cmd->convert_arg = 0;
err++;
}
}
if (!cmd->chanlist_len) {
cmd->chanlist_len = 1;
err++;
}
if (cmd->chanlist_len > MAX_CHANLIST_LEN) {
cmd->chanlist_len = this_board->n_aichan;
err++;
}
if (cmd->scan_end_arg != cmd->chanlist_len) {
cmd->scan_end_arg = cmd->chanlist_len;
err++;
}
if (cmd->stop_src == TRIG_COUNT) {
if (!cmd->stop_arg) {
cmd->stop_arg = 1;
err++;
}
} else { /* TRIG_NONE */
if (cmd->stop_arg != 0) {
cmd->stop_arg = 0;
err++;
}
}
if (err) {
#ifdef PCL812_EXTDEBUG
pcl812_cmdtest_out(3, cmd);
rt_printk
("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
err);
#endif
return 3;
}
/* step 4: fix up any arguments */
if (cmd->convert_src == TRIG_TIMER) {
tmp = cmd->convert_arg;
i8253_cascade_ns_to_timer(this_board->i8254_osc_base, &divisor1,
&divisor2, &cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
if (cmd->convert_arg < this_board->ai_ns_min)
cmd->convert_arg = this_board->ai_ns_min;
if (tmp != cmd->convert_arg)
err++;
}
if (err) {
#ifdef PCL812_EXTDEBUG
rt_printk
("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
err);
#endif
return 4;
}
return 0;
}
/*
==============================================================================
*/
static int pcl812_ai_cmd(comedi_device * dev, comedi_subdevice * s)
{
unsigned int divisor1 = 0, divisor2 = 0, i, dma_flags, bytes;
comedi_cmd *cmd = &s->async->cmd;
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
#endif
if (cmd->start_src != TRIG_NOW)
return -EINVAL;
if (cmd->scan_begin_src != TRIG_FOLLOW)
return -EINVAL;
if (devpriv->use_ext_trg) {
if (cmd->convert_src != TRIG_EXT)
return -EINVAL;
} else {
if (cmd->convert_src != TRIG_TIMER)
return -EINVAL;
}
if (cmd->scan_end_src != TRIG_COUNT)
return -EINVAL;
if (cmd->scan_end_arg != cmd->chanlist_len)
return -EINVAL;
if (cmd->chanlist_len > MAX_CHANLIST_LEN)
return -EINVAL;
if (cmd->convert_src == TRIG_TIMER) {
if (cmd->convert_arg < this_board->ai_ns_min)
cmd->convert_arg = this_board->ai_ns_min;
i8253_cascade_ns_to_timer(this_board->i8254_osc_base,
&divisor1, &divisor2, &cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
}
start_pacer(dev, -1, 0, 0); // stop pacer
devpriv->ai_n_chan = cmd->chanlist_len;
memcpy(devpriv->ai_chanlist, cmd->chanlist,
sizeof(unsigned int) * cmd->scan_end_arg);
setup_range_channel(dev, s, devpriv->ai_chanlist[0], 1); // select first channel and range
if (devpriv->dma) { // check if we can use DMA transfer
devpriv->ai_dma = 1;
for (i = 1; i < devpriv->ai_n_chan; i++)
if (devpriv->ai_chanlist[0] != devpriv->ai_chanlist[i]) {
devpriv->ai_dma = 0; // we cann't use DMA :-(
break;
}
} else
devpriv->ai_dma = 0;
devpriv->ai_flags = cmd->flags;
devpriv->ai_data_len = s->async->prealloc_bufsz;
devpriv->ai_data = s->async->prealloc_buf;
if (cmd->stop_src == TRIG_COUNT) {
devpriv->ai_scans = cmd->stop_arg;
devpriv->ai_neverending = 0;
} else {
devpriv->ai_scans = 0;
devpriv->ai_neverending = 1;
}
devpriv->ai_act_scan = 0;
devpriv->ai_poll_ptr = 0;
s->async->cur_chan = 0;
if ((devpriv->ai_flags & TRIG_WAKE_EOS)) { // don't we want wake up every scan?
devpriv->ai_eos = 1;
if (devpriv->ai_n_chan == 1)
devpriv->ai_dma = 0; // DMA is useless for this situation
}
if (devpriv->ai_dma) {
if (devpriv->ai_eos) { // we use EOS, so adapt DMA buffer to one scan
devpriv->dmabytestomove[0] =
devpriv->ai_n_chan * sizeof(short);
devpriv->dmabytestomove[1] =
devpriv->ai_n_chan * sizeof(short);
devpriv->dma_runs_to_end = 1;
} else {
devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
if (devpriv->ai_data_len < devpriv->hwdmasize[0])
devpriv->dmabytestomove[0] =
devpriv->ai_data_len;
if (devpriv->ai_data_len < devpriv->hwdmasize[1])
devpriv->dmabytestomove[1] =
devpriv->ai_data_len;
if (devpriv->ai_neverending) {
devpriv->dma_runs_to_end = 1;
} else {
bytes = devpriv->ai_n_chan * devpriv->ai_scans * sizeof(short); // how many samples we must transfer?
devpriv->dma_runs_to_end = bytes / devpriv->dmabytestomove[0]; // how many DMA pages we must fill
devpriv->last_dma_run = bytes % devpriv->dmabytestomove[0]; //on last dma transfer must be moved
if (devpriv->dma_runs_to_end == 0)
devpriv->dmabytestomove[0] =
devpriv->last_dma_run;
devpriv->dma_runs_to_end--;
}
}
if (devpriv->dmabytestomove[0] > devpriv->hwdmasize[0]) {
devpriv->dmabytestomove[0] = devpriv->hwdmasize[0];
devpriv->ai_eos = 0;
}
if (devpriv->dmabytestomove[1] > devpriv->hwdmasize[1]) {
devpriv->dmabytestomove[1] = devpriv->hwdmasize[1];
devpriv->ai_eos = 0;
}
devpriv->next_dma_buf = 0;
set_dma_mode(devpriv->dma, DMA_MODE_READ);
dma_flags = claim_dma_lock();
clear_dma_ff(devpriv->dma);
set_dma_addr(devpriv->dma, devpriv->hwdmaptr[0]);
set_dma_count(devpriv->dma, devpriv->dmabytestomove[0]);
release_dma_lock(dma_flags);
enable_dma(devpriv->dma);
#ifdef PCL812_EXTDEBUG
rt_printk
("pcl812 EDBG: DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
devpriv->dma, devpriv->hwdmaptr[0],
devpriv->hwdmaptr[1], devpriv->dmabytestomove[0],
devpriv->dmabytestomove[1], devpriv->ai_eos);
#endif
}
switch (cmd->convert_src) {
case TRIG_TIMER:
start_pacer(dev, 1, divisor1, divisor2);
break;
}
if (devpriv->ai_dma) {
outb(devpriv->mode_reg_int | 2, dev->iobase + PCL812_MODE); // let's go!
} else {
outb(devpriv->mode_reg_int | 6, dev->iobase + PCL812_MODE); // let's go!
}
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
#endif
return 0;
}
/*
==============================================================================
*/
static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
{
char err = 1;
unsigned int mask, timeout;
comedi_device *dev = d;
comedi_subdevice *s = dev->subdevices + 0;
s->async->events = 0;
timeout = 50; /* wait max 50us, it must finish under 33us */
if (devpriv->ai_is16b) {
mask = 0xffff;
while (timeout--) {
if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY)) {
err = 0;
break;
}
comedi_udelay(1);
}
} else {
mask = 0x0fff;
while (timeout--) {
if (!(inb(dev->iobase + PCL812_AD_HI) & PCL812_DRDY)) {
err = 0;
break;
}
comedi_udelay(1);
}
}
if (err) {
rt_printk
("comedi%d: pcl812: (%s at 0x%lx) A/D cmd IRQ without DRDY!\n",
dev->minor, dev->board_name, dev->iobase);
pcl812_ai_cancel(dev, s);
s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
comedi_event(dev, s);
return IRQ_HANDLED;
}
comedi_buf_put(s->async,
((inb(dev->iobase + PCL812_AD_HI) << 8) | inb(dev->iobase +
PCL812_AD_LO)) & mask);
outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
if (s->async->cur_chan == 0) { /* one scan done */
devpriv->ai_act_scan++;
if (!(devpriv->ai_neverending))
if (devpriv->ai_act_scan >= devpriv->ai_scans) { /* all data sampled */
pcl812_ai_cancel(dev, s);
s->async->events |= COMEDI_CB_EOA;
}
}
comedi_event(dev, s);
return IRQ_HANDLED;
}
/*
==============================================================================
*/
static void transfer_from_dma_buf(comedi_device * dev, comedi_subdevice * s,
short * ptr, unsigned int bufptr, unsigned int len)
{
unsigned int i;
s->async->events = 0;
for (i = len; i; i--) {
comedi_buf_put(s->async, ptr[bufptr++]); // get one sample
if (s->async->cur_chan == 0) {
devpriv->ai_act_scan++;
if (!devpriv->ai_neverending)
if (devpriv->ai_act_scan >= devpriv->ai_scans) { /* all data sampled */
pcl812_ai_cancel(dev, s);
s->async->events |= COMEDI_CB_EOA;
break;
}
}
}
comedi_event(dev, s);
}
/*
==============================================================================
*/
static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
{
comedi_device *dev = d;
comedi_subdevice *s = dev->subdevices + 0;
unsigned long dma_flags;
int len, bufptr;
short *ptr;
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
#endif
ptr = (short *) devpriv->dmabuf[devpriv->next_dma_buf];
len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
devpriv->ai_poll_ptr;
devpriv->next_dma_buf = 1 - devpriv->next_dma_buf;
disable_dma(devpriv->dma);
set_dma_mode(devpriv->dma, DMA_MODE_READ);
dma_flags = claim_dma_lock();
set_dma_addr(devpriv->dma, devpriv->hwdmaptr[devpriv->next_dma_buf]);
if (devpriv->ai_eos) {
set_dma_count(devpriv->dma,
devpriv->dmabytestomove[devpriv->next_dma_buf]);
} else {
if (devpriv->dma_runs_to_end) {
set_dma_count(devpriv->dma,
devpriv->dmabytestomove[devpriv->next_dma_buf]);
} else {
set_dma_count(devpriv->dma, devpriv->last_dma_run);
}
devpriv->dma_runs_to_end--;
}
release_dma_lock(dma_flags);
enable_dma(devpriv->dma);
outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
bufptr = devpriv->ai_poll_ptr;
devpriv->ai_poll_ptr = 0;
transfer_from_dma_buf(dev, s, ptr, bufptr, len);
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
#endif
return IRQ_HANDLED;
}
/*
==============================================================================
*/
static irqreturn_t interrupt_pcl812(int irq, void *d PT_REGS_ARG)
{
comedi_device *dev = d;
if (!dev->attached) {
comedi_error(dev, "spurious interrupt");
return IRQ_HANDLED;
}
if (devpriv->ai_dma) {
return interrupt_pcl812_ai_dma(irq, d);
} else {
return interrupt_pcl812_ai_int(irq, d);
};
}
/*
==============================================================================
*/
static int pcl812_ai_poll(comedi_device * dev, comedi_subdevice * s)
{
unsigned long flags;
unsigned int top1, top2, i;
if (!devpriv->ai_dma)
return 0; // poll is valid only for DMA transfer
comedi_spin_lock_irqsave(&dev->spinlock, flags);
for (i = 0; i < 10; i++) {
top1 = get_dma_residue(devpriv->ai_dma); // where is now DMA
top2 = get_dma_residue(devpriv->ai_dma);
if (top1 == top2)
break;
}
if (top1 != top2) {
comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
return 0;
}
top1 = devpriv->dmabytestomove[1 - devpriv->next_dma_buf] - top1; // where is now DMA in buffer
top1 >>= 1; // sample position
top2 = top1 - devpriv->ai_poll_ptr;
if (top2 < 1) { // no new samples
comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
return 0;
}
transfer_from_dma_buf(dev, s,
(void *)devpriv->dmabuf[1 - devpriv->next_dma_buf],
devpriv->ai_poll_ptr, top2);
devpriv->ai_poll_ptr = top1; // new buffer position
comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
return s->async->buf_write_count - s->async->buf_read_count;
}
/*
==============================================================================
*/
static void setup_range_channel(comedi_device * dev, comedi_subdevice * s,
unsigned int rangechan, char wait)
{
unsigned char chan_reg = CR_CHAN(rangechan); // normal board
unsigned char gain_reg = CR_RANGE(rangechan) + devpriv->range_correction; // gain index
if ((chan_reg == devpriv->old_chan_reg)
&& (gain_reg == devpriv->old_gain_reg))
return; // we can return, no change
devpriv->old_chan_reg = chan_reg;
devpriv->old_gain_reg = gain_reg;
if (devpriv->use_MPC) {
if (devpriv->use_diff) {
chan_reg = chan_reg | 0x30; // DIFF inputs
} else {
if (chan_reg & 0x80) {
chan_reg = chan_reg | 0x20; // SE inputs 8-15
} else {
chan_reg = chan_reg | 0x10; // SE inputs 0-7
}
}
}
outb(chan_reg, dev->iobase + PCL812_MUX); /* select channel */
outb(gain_reg, dev->iobase + PCL812_GAIN); /* select gain */
if (wait) {
comedi_udelay(devpriv->max_812_ai_mode0_rangewait); // XXX this depends on selected range and can be very long for some high gain ranges!
}
}
/*
==============================================================================
*/
static void start_pacer(comedi_device * dev, int mode, unsigned int divisor1,
unsigned int divisor2)
{
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode, divisor1,
divisor2);
#endif
outb(0xb4, dev->iobase + PCL812_CTRCTL);
outb(0x74, dev->iobase + PCL812_CTRCTL);
comedi_udelay(1);
if (mode == 1) {
outb(divisor2 & 0xff, dev->iobase + PCL812_CTR2);
outb((divisor2 >> 8) & 0xff, dev->iobase + PCL812_CTR2);
outb(divisor1 & 0xff, dev->iobase + PCL812_CTR1);
outb((divisor1 >> 8) & 0xff, dev->iobase + PCL812_CTR1);
}
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: END: start_pacer(...)\n");
#endif
}
/*
==============================================================================
*/
static void free_resources(comedi_device * dev)
{
if (dev->private) {
if (devpriv->dmabuf[0])
free_pages(devpriv->dmabuf[0], devpriv->dmapages[0]);
if (devpriv->dmabuf[1])
free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
if (devpriv->dma)
free_dma(devpriv->dma);
}
if (dev->irq)
comedi_free_irq(dev->irq, dev);
if (dev->iobase)
release_region(dev->iobase, this_board->io_range);
}
/*
==============================================================================
*/
static int pcl812_ai_cancel(comedi_device * dev, comedi_subdevice * s)
{
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
#endif
if (devpriv->ai_dma)
disable_dma(devpriv->dma);
outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE); /* Stop A/D */
start_pacer(dev, -1, 0, 0); // stop 8254
outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
#endif
return 0;
}
/*
==============================================================================
*/
static void pcl812_reset(comedi_device * dev)
{
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
#endif
outb(0, dev->iobase + PCL812_MUX);
outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN);
devpriv->old_chan_reg = -1; // invalidate chain/gain memory
devpriv->old_gain_reg = -1;
switch (this_board->board_type) {
case boardPCL812PG:
case boardPCL812:
case boardACL8112:
case boardACL8216:
outb(0, dev->iobase + PCL812_DA2_LO);
outb(0, dev->iobase + PCL812_DA2_HI);
case boardA821:
outb(0, dev->iobase + PCL812_DA1_LO);
outb(0, dev->iobase + PCL812_DA1_HI);
start_pacer(dev, -1, 0, 0); // stop 8254
outb(0, dev->iobase + PCL812_DO_HI);
outb(0, dev->iobase + PCL812_DO_LO);
outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
outb(0, dev->iobase + PCL812_CLRINT);
break;
case boardPCL813B:
case boardPCL813:
case boardISO813:
case boardACL8113:
comedi_udelay(5);
break;
}
comedi_udelay(5);
#ifdef PCL812_EXTDEBUG
rt_printk("pcl812 EDBG: END: pcl812_reset(...)\n");
#endif
}
/*
==============================================================================
*/
static int pcl812_attach(comedi_device * dev, comedi_devconfig * it)
{
int ret, subdev;
unsigned long iobase;
unsigned int irq;
unsigned int dma;
unsigned long pages;
comedi_subdevice *s;
int n_subdevices;
iobase = it->options[0];
printk("comedi%d: pcl812: board=%s, ioport=0x%03lx", dev->minor,
this_board->name, iobase);
if (!request_region(iobase, this_board->io_range, "pcl812")) {
printk("I/O port conflict\n");
return -EIO;
}
dev->iobase = iobase;
if ((ret = alloc_private(dev, sizeof(pcl812_private))) < 0) {
free_resources(dev);
return ret; /* Can't alloc mem */
}
dev->board_name = this_board->name;
irq = 0;
if (this_board->IRQbits != 0) { /* board support IRQ */
irq = it->options[1];
if (irq) { /* we want to use IRQ */
if (((1 << irq) & this_board->IRQbits) == 0) {
printk(", IRQ %u is out of allowed range, DISABLING IT", irq);
irq = 0; /* Bad IRQ */
} else {
if (comedi_request_irq(irq, interrupt_pcl812, 0,
"pcl812", dev)) {
printk(", unable to allocate IRQ %u, DISABLING IT", irq);
irq = 0; /* Can't use IRQ */
} else {
printk(", irq=%u", irq);
}
}
}
}
dev->irq = irq;
dma = 0;
devpriv->dma = dma;
if (!dev->irq)
goto no_dma; /* if we haven't IRQ, we can't use DMA */
if (this_board->DMAbits != 0) { /* board support DMA */
dma = it->options[2];
if (((1 << dma) & this_board->DMAbits) == 0) {
printk(", DMA is out of allowed range, FAIL!\n");
return -EINVAL; /* Bad DMA */
}
ret = request_dma(dma, "pcl812");
if (ret) {
printk(", unable to allocate DMA %u, FAIL!\n", dma);
return -EBUSY; /* DMA isn't free */
}
devpriv->dma = dma;
printk(", dma=%u", dma);
pages = 1; /* we want 8KB */
devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
if (!devpriv->dmabuf[0]) {
printk(", unable to allocate DMA buffer, FAIL!\n");
/* maybe experiment with try_to_free_pages() will help .... */
free_resources(dev);
return -EBUSY; /* no buffer :-( */
}
devpriv->dmapages[0] = pages;
devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
devpriv->hwdmasize[0] = PAGE_SIZE * (1 << pages);
devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
if (!devpriv->dmabuf[1]) {
printk(", unable to allocate DMA buffer, FAIL!\n");
free_resources(dev);
return -EBUSY;
}
devpriv->dmapages[1] = pages;
devpriv->hwdmaptr[1] = virt_to_bus((void *)devpriv->dmabuf[1]);
devpriv->hwdmasize[1] = PAGE_SIZE * (1 << pages);
}
no_dma:
n_subdevices = 0;
if (this_board->n_aichan > 0)
n_subdevices++;
if (this_board->n_aochan > 0)
n_subdevices++;
if (this_board->n_dichan > 0)
n_subdevices++;
if (this_board->n_dochan > 0)
n_subdevices++;
if ((ret = alloc_subdevices(dev, n_subdevices)) < 0) {
free_resources(dev);
return ret;
}
subdev = 0;
/* analog input */
if (this_board->n_aichan > 0) {
s = dev->subdevices + subdev;
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE;
switch (this_board->board_type) {
case boardA821:
if (it->options[2] == 1) {
s->n_chan = this_board->n_aichan_diff;
s->subdev_flags |= SDF_DIFF;
devpriv->use_diff = 1;
} else {
s->n_chan = this_board->n_aichan;
s->subdev_flags |= SDF_GROUND;
}
break;
case boardACL8112:
case boardACL8216:
if (it->options[4] == 1) {
s->n_chan = this_board->n_aichan_diff;
s->subdev_flags |= SDF_DIFF;
devpriv->use_diff = 1;
} else {
s->n_chan = this_board->n_aichan;
s->subdev_flags |= SDF_GROUND;
}
break;
default:
s->n_chan = this_board->n_aichan;
s->subdev_flags |= SDF_GROUND;
break;
}
s->maxdata = this_board->ai_maxdata;
s->len_chanlist = MAX_CHANLIST_LEN;
s->range_table = this_board->rangelist_ai;
if (this_board->board_type == boardACL8216) {
s->insn_read = acl8216_ai_insn_read;
} else {
s->insn_read = pcl812_ai_insn_read;
}
devpriv->use_MPC = this_board->haveMPC508;
s->cancel = pcl812_ai_cancel;
if (dev->irq) {
dev->read_subdev = s;
s->subdev_flags |= SDF_CMD_READ;
s->do_cmdtest = pcl812_ai_cmdtest;
s->do_cmd = pcl812_ai_cmd;
s->poll = pcl812_ai_poll;
}
switch (this_board->board_type) {
case boardPCL812PG:
if (it->options[4] == 1)
s->range_table = &range_pcl812pg2_ai;
break;
case boardPCL812:
switch (it->options[4]) {
case 0:
s->range_table = &range_bipolar10;
break;
case 1:
s->range_table = &range_bipolar5;
break;
case 2:
s->range_table = &range_bipolar2_5;
break;
case 3:
s->range_table = &range812_bipolar1_25;
break;
case 4:
s->range_table = &range812_bipolar0_625;
break;
case 5:
s->range_table = &range812_bipolar0_3125;
break;
default:
s->range_table = &range_bipolar10;
break;
printk(", incorrect range number %d, changing to 0 (+/-10V)", it->options[4]);
break;
}
break;
break;
case boardPCL813B:
if (it->options[1] == 1)
s->range_table = &range_pcl813b2_ai;
break;
case boardISO813:
switch (it->options[1]) {
case 0:
s->range_table = &range_iso813_1_ai;
break;
case 1:
s->range_table = &range_iso813_1_2_ai;
break;
case 2:
s->range_table = &range_iso813_2_ai;
devpriv->range_correction = 1;
break;
case 3:
s->range_table = &range_iso813_2_2_ai;
devpriv->range_correction = 1;
break;
default:
s->range_table = &range_iso813_1_ai;
break;
printk(", incorrect range number %d, changing to 0 ", it->options[1]);
break;
}
break;
case boardACL8113:
switch (it->options[1]) {
case 0:
s->range_table = &range_acl8113_1_ai;
break;
case 1:
s->range_table = &range_acl8113_1_2_ai;
break;
case 2:
s->range_table = &range_acl8113_2_ai;
devpriv->range_correction = 1;
break;
case 3:
s->range_table = &range_acl8113_2_2_ai;
devpriv->range_correction = 1;
break;
default:
s->range_table = &range_acl8113_1_ai;
break;
printk(", incorrect range number %d, changing to 0 ", it->options[1]);
break;
}
break;
}
subdev++;
}
/* analog output */
if (this_board->n_aochan > 0) {
s = dev->subdevices + subdev;
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
s->n_chan = this_board->n_aochan;
s->maxdata = 0xfff;
s->len_chanlist = 1;
s->range_table = this_board->rangelist_ao;
s->insn_read = pcl812_ao_insn_read;
s->insn_write = pcl812_ao_insn_write;
switch (this_board->board_type) {
case boardA821:
if (it->options[3] == 1)
s->range_table = &range_unipolar10;
break;
case boardPCL812:
case boardACL8112:
case boardPCL812PG:
case boardACL8216:
if (it->options[5] == 1)
s->range_table = &range_unipolar10;
if (it->options[5] == 2)
s->range_table = &range_unknown;
break;
}
subdev++;
}
/* digital input */
if (this_board->n_dichan > 0) {
s = dev->subdevices + subdev;
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = this_board->n_dichan;
s->maxdata = 1;
s->len_chanlist = this_board->n_dichan;
s->range_table = &range_digital;
s->insn_bits = pcl812_di_insn_bits;
subdev++;
}
/* digital output */
if (this_board->n_dochan > 0) {
s = dev->subdevices + subdev;
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = this_board->n_dochan;
s->maxdata = 1;
s->len_chanlist = this_board->n_dochan;
s->range_table = &range_digital;
s->insn_bits = pcl812_do_insn_bits;
subdev++;
}
switch (this_board->board_type) {
case boardACL8216:
devpriv->ai_is16b = 1;
case boardPCL812PG:
case boardPCL812:
case boardACL8112:
devpriv->max_812_ai_mode0_rangewait = 1;
if (it->options[3] > 0)
devpriv->use_ext_trg = 1; // we use external trigger
case boardA821:
devpriv->max_812_ai_mode0_rangewait = 1;
devpriv->mode_reg_int = (irq << 4) & 0xf0;
break;
case boardPCL813B:
case boardPCL813:
case boardISO813:
case boardACL8113:
devpriv->max_812_ai_mode0_rangewait = 5; /* maybe there must by greatest timeout */
break;
}
printk("\n");
devpriv->valid = 1;
pcl812_reset(dev);
return 0;
}
/*
==============================================================================
*/
static int pcl812_detach(comedi_device * dev)
{
#ifdef PCL812_EXTDEBUG
rt_printk("comedi%d: pcl812: remove\n", dev->minor);
#endif
free_resources(dev);
return 0;
}
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