Skip to content

L
linux
Commit 0f04c356 authored by Bill Pemberton's avatar Bill Pemberton Committed by Greg Kroah-Hartman
Browse files
Options

Staging: comedi: remove C99 comments in adl_pci9118.c 

Signed-off-by: default avatarBill Pemberton <wfp5p@virginia.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 14458b19
Hide whitespace changes
Inline Side-by-side
Showing with 225 additions and 225 deletions
drivers/staging/comedi/drivers/adl_pci9118.c
View file @ 0f04c356
......@@ -107,7 +107,7 @@ Configuration options:
#define PCI9118_INTSRC 0x38 /* R: interrupt reason register */
#define PCI9118_INTCTRL 0x38 /* W: interrupt control register */
// bits from A/D control register (PCI9118_ADCNTRL)
/* bits from A/D control register (PCI9118_ADCNTRL) */
#define AdControl_UniP 0x80 /* 1=bipolar, 0=unipolar */
#define AdControl_Diff 0x40 /* 1=differential, 0= single end inputs */
#define AdControl_SoftG 0x20 /* 1=8254 counter works, 0=counter stops */
......@@ -117,7 +117,7 @@ Configuration options:
#define AdControl_Int 0x02 /* 1=enable INT, 0=disable */
#define AdControl_Dma 0x01 /* 1=enable DMA, 0=disable */
// bits from A/D function register (PCI9118_ADFUNC)
/* bits from A/D function register (PCI9118_ADFUNC) */
#define AdFunction_PDTrg 0x80 /* 1=positive, 0=negative digital trigger (only positive is correct) */
#define AdFunction_PETrg 0x40 /* 1=positive, 0=negative external trigger (only positive is correct) */
#define AdFunction_BSSH 0x20 /* 1=with sample&hold, 0=without */
......@@ -127,7 +127,7 @@ Configuration options:
#define AdFunction_AM 0x02 /* 1=about trigger mode, 0=not about trigger */
#define AdFunction_Start 0x01 /* 1=trigger start, 0=trigger stop */
// bits from A/D status register (PCI9118_ADSTAT)
/* bits from A/D status register (PCI9118_ADSTAT) */
#define AdStatus_nFull 0x100 /* 0=FIFO full (fatal), 1=not full */
#define AdStatus_nHfull 0x080 /* 0=FIFO half full, 1=FIFO not half full */
#define AdStatus_nEpty 0x040 /* 0=FIFO empty, 1=FIFO not empty */
......@@ -138,8 +138,8 @@ Configuration options:
#define AdStatus_ADOR 0x002 /* 1=A/D overrun (fatal) */
#define AdStatus_ADrdy 0x001 /* 1=A/D already ready, 0=not ready */
// bits for interrupt reason and control (PCI9118_INTSRC, PCI9118_INTCTRL)
// 1=interrupt occur, enable source, 0=interrupt not occur, disable source
/* bits for interrupt reason and control (PCI9118_INTSRC, PCI9118_INTCTRL) */
/* 1=interrupt occur, enable source, 0=interrupt not occur, disable source */
#define Int_Timer 0x08 /* timer interrupt */
#define Int_About 0x04 /* about trigger complete */
#define Int_Hfull 0x02 /* A/D FIFO hlaf full */
......@@ -182,23 +182,23 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
static int pci9118_detach(struct comedi_device * dev);
struct boardtype {
const char *name; // board name
int vendor_id; // PCI vendor a device ID of card
const char *name; /* board name */
int vendor_id; /* PCI vendor a device ID of card */
int device_id;
int iorange_amcc; // iorange for own S5933 region
int iorange_9118; // pass thru card region size
int n_aichan; // num of A/D chans
int n_aichand; // num of A/D chans in diff mode
int mux_aichan; // num of A/D chans with external multiplexor
int n_aichanlist; // len of chanlist
int n_aochan; // num of D/A chans
int ai_maxdata; // resolution of A/D
int ao_maxdata; // resolution of D/A
const struct comedi_lrange *rangelist_ai; // rangelist for A/D
const struct comedi_lrange *rangelist_ao; // rangelist for D/A
unsigned int ai_ns_min; // max sample speed of card v ns
unsigned int ai_pacer_min; // minimal pacer value (c1*c2 or c1 in burst)
int half_fifo_size; // size of FIFO/2
int iorange_amcc; /* iorange for own S5933 region */
int iorange_9118; /* pass thru card region size */
int n_aichan; /* num of A/D chans */
int n_aichand; /* num of A/D chans in diff mode */
int mux_aichan; /* num of A/D chans with external multiplexor */
int n_aichanlist; /* len of chanlist */
int n_aochan; /* num of D/A chans */
int ai_maxdata; /* resolution of A/D */
int ao_maxdata; /* resolution of D/A */
const struct comedi_lrange *rangelist_ai; /* rangelist for A/D */
const struct comedi_lrange *rangelist_ao; /* rangelist for D/A */
unsigned int ai_ns_min; /* max sample speed of card v ns */
unsigned int ai_pacer_min; /* minimal pacer value (c1*c2 or c1 in burst) */
int half_fifo_size; /* size of FIFO/2 */
};
......@@ -242,63 +242,63 @@ static struct comedi_driver driver_pci9118 = {
COMEDI_PCI_INITCLEANUP(driver_pci9118, pci9118_pci_table);
struct pci9118_private {
unsigned long iobase_a; // base+size for AMCC chip
unsigned int master; // master capable
struct pci_dev *pcidev; // ptr to actual pcidev
unsigned int usemux; // we want to use external multiplexor!
unsigned long iobase_a; /* base+size for AMCC chip */
unsigned int master; /* master capable */
struct pci_dev *pcidev; /* ptr to actual pcidev */
unsigned int usemux; /* we want to use external multiplexor! */
#ifdef PCI9118_PARANOIDCHECK
unsigned short chanlist[PCI9118_CHANLEN + 1]; // list of scaned channel
unsigned char chanlistlen; // number of scanlist
unsigned short chanlist[PCI9118_CHANLEN + 1]; /* list of scaned channel */
unsigned char chanlistlen; /* number of scanlist */
#endif
unsigned char AdControlReg; // A/D control register
unsigned char IntControlReg; // Interrupt control register
unsigned char AdFunctionReg; // A/D function register
char valid; // driver is ok
char ai_neverending; // we do unlimited AI
unsigned int i8254_osc_base; // frequence of onboard oscilator
unsigned int ai_do; // what do AI? 0=nothing, 1 to 4 mode
unsigned int ai_act_scan; // how many scans we finished
unsigned int ai_buf_ptr; // data buffer ptr in samples
unsigned int ai_n_chan; // how many channels is measured
unsigned int ai_n_scanlen; // len of actual scanlist
unsigned int ai_n_realscanlen; // what we must transfer for one outgoing scan include front/back adds
unsigned int ai_act_dmapos; // position in actual real stream
unsigned int ai_add_front; // how many channels we must add before scan to satisfy S&H?
unsigned int ai_add_back; // how many channels we must add before scan to satisfy DMA?
unsigned int *ai_chanlist; // actaul chanlist
unsigned char AdControlReg; /* A/D control register */
unsigned char IntControlReg; /* Interrupt control register */
unsigned char AdFunctionReg; /* A/D function register */
char valid; /* driver is ok */
char ai_neverending; /* we do unlimited AI */
unsigned int i8254_osc_base; /* frequence of onboard oscilator */
unsigned int ai_do; /* what do AI? 0=nothing, 1 to 4 mode */
unsigned int ai_act_scan; /* how many scans we finished */
unsigned int ai_buf_ptr; /* data buffer ptr in samples */
unsigned int ai_n_chan; /* how many channels is measured */
unsigned int ai_n_scanlen; /* len of actual scanlist */
unsigned int ai_n_realscanlen; /* what we must transfer for one outgoing scan include front/back adds */
unsigned int ai_act_dmapos; /* position in actual real stream */
unsigned int ai_add_front; /* how many channels we must add before scan to satisfy S&H? */
unsigned int ai_add_back; /* how many channels we must add before scan to satisfy DMA? */
unsigned int *ai_chanlist; /* actaul chanlist */
unsigned int ai_timer1;
unsigned int ai_timer2;
unsigned int ai_flags;
char ai12_startstop; // measure can start/stop on external trigger
unsigned int ai_divisor1, ai_divisor2; // divisors for start of measure on external start
char ai12_startstop; /* measure can start/stop on external trigger */
unsigned int ai_divisor1, ai_divisor2; /* divisors for start of measure on external start */
unsigned int ai_data_len;
short *ai_data;
short ao_data[2]; // data output buffer
unsigned int ai_scans; // number of scans to do
char dma_doublebuf; // we can use double buffring
unsigned int dma_actbuf; // which buffer is used now
short *dmabuf_virt[2]; // pointers to begin of DMA buffer
unsigned long dmabuf_hw[2]; // hw address of DMA buff
unsigned int dmabuf_size[2]; // size of dma buffer in bytes
unsigned int dmabuf_use_size[2]; // which size we may now used for transfer
unsigned int dmabuf_used_size[2]; // which size was trully used
short ao_data[2]; /* data output buffer */
unsigned int ai_scans; /* number of scans to do */
char dma_doublebuf; /* we can use double buffring */
unsigned int dma_actbuf; /* which buffer is used now */
short *dmabuf_virt[2]; /* pointers to begin of DMA buffer */
unsigned long dmabuf_hw[2]; /* hw address of DMA buff */
unsigned int dmabuf_size[2]; /* size of dma buffer in bytes */
unsigned int dmabuf_use_size[2]; /* which size we may now used for transfer */
unsigned int dmabuf_used_size[2]; /* which size was trully used */
unsigned int dmabuf_panic_size[2];
unsigned int dmabuf_samples[2]; // size in samples
int dmabuf_pages[2]; // number of pages in buffer
unsigned char cnt0_users; // bit field of 8254 CNT0 users (0-unused, 1-AO, 2-DI, 3-DO)
unsigned char exttrg_users; // bit field of external trigger users (0-AI, 1-AO, 2-DI, 3-DO)
unsigned int cnt0_divisor; // actual CNT0 divisor
void (*int_ai_func) (struct comedi_device *, struct comedi_subdevice *, unsigned short, unsigned int, unsigned short); // ptr to actual interrupt AI function
unsigned char ai16bits; // =1 16 bit card
unsigned char usedma; // =1 use DMA transfer and not INT
unsigned char useeoshandle; // =1 change WAKE_EOS DMA transfer to fit on every second
unsigned char usessh; // =1 turn on S&H support
int softsshdelay; // >0 use software S&H, numer is requested delay in ns
unsigned char softsshsample; // polarity of S&H signal in sample state
unsigned char softsshhold; // polarity of S&H signal in hold state
unsigned int ai_maskerr; // which warning was printed
unsigned int ai_maskharderr; // on which error bits stops
unsigned int ai_inttrig_start; // TRIG_INT for start
unsigned int dmabuf_samples[2]; /* size in samples */
int dmabuf_pages[2]; /* number of pages in buffer */
unsigned char cnt0_users; /* bit field of 8254 CNT0 users (0-unused, 1-AO, 2-DI, 3-DO) */
unsigned char exttrg_users; /* bit field of external trigger users (0-AI, 1-AO, 2-DI, 3-DO) */
unsigned int cnt0_divisor; /* actual CNT0 divisor */
void (*int_ai_func) (struct comedi_device *, struct comedi_subdevice *, unsigned short, unsigned int, unsigned short); /* ptr to actual interrupt AI function */
unsigned char ai16bits; /* =1 16 bit card */
unsigned char usedma; /* =1 use DMA transfer and not INT */
unsigned char useeoshandle; /* =1 change WAKE_EOS DMA transfer to fit on every second */
unsigned char usessh; /* =1 turn on S&H support */
int softsshdelay; /* >0 use software S&H, numer is requested delay in ns */
unsigned char softsshsample; /* polarity of S&H signal in sample state */
unsigned char softsshhold; /* polarity of S&H signal in hold state */
unsigned int ai_maskerr; /* which warning was printed */
unsigned int ai_maskharderr; /* on which error bits stops */
unsigned int ai_inttrig_start; /* TRIG_INT for start */
};
#define devpriv ((struct pci9118_private *)dev->private)
......@@ -335,12 +335,12 @@ static int pci9118_insn_read_ai(struct comedi_device * dev, struct comedi_subdev
devpriv->AdControlReg = AdControl_Int & 0xff;
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); // positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); /* positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
if (!setup_channel_list(dev, s, 1, &insn->chanspec, 0, 0, 0, 0, 0))
return -EINVAL;
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
for (n = 0; n < insn->n; n++) {
outw(0, dev->iobase + PCI9118_SOFTTRG); /* start conversion */
......@@ -354,7 +354,7 @@ static int pci9118_insn_read_ai(struct comedi_device * dev, struct comedi_subdev
comedi_error(dev, "A/D insn timeout");
data[n] = 0;
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
return -ETIME;
conv_finish:
......@@ -369,7 +369,7 @@ static int pci9118_insn_read_ai(struct comedi_device * dev, struct comedi_subdev
}
}
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
return n;
}
......@@ -567,7 +567,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device * dev,
#ifdef PCI9118_PARANOIDCHECK
if (devpriv->ai16bits == 0) {
if ((sampl & 0x000f) != devpriv->chanlist[s->async->cur_chan]) { // data dropout!
if ((sampl & 0x000f) != devpriv->chanlist[s->async->cur_chan]) { /* data dropout! */
rt_printk
("comedi: A/D SAMPL - data dropout: received channel %d, expected %d!\n",
sampl & 0x000f,
......@@ -621,14 +621,14 @@ static void interrupt_pci9118_ai_dma(struct comedi_device * dev, struct comedi_s
}
if (int_adstat & devpriv->ai_maskerr)
// if (int_adstat & 0x106)
/* if (int_adstat & 0x106) */
if (pci9118_decode_error_status(dev, s, int_adstat))
return;
samplesinbuf = devpriv->dmabuf_use_size[devpriv->dma_actbuf] >> 1; // number of received real samples
// DPRINTK("dma_actbuf=%d\n",devpriv->dma_actbuf);
samplesinbuf = devpriv->dmabuf_use_size[devpriv->dma_actbuf] >> 1; /* number of received real samples */
/* DPRINTK("dma_actbuf=%d\n",devpriv->dma_actbuf); */
if (devpriv->dma_doublebuf) { // switch DMA buffers if is used double buffering
if (devpriv->dma_doublebuf) { /* switch DMA buffers if is used double buffering */
next_dma_buf = 1 - devpriv->dma_actbuf;
outl(devpriv->dmabuf_hw[next_dma_buf],
devpriv->iobase_a + AMCC_OP_REG_MWAR);
......@@ -641,15 +641,15 @@ static void interrupt_pci9118_ai_dma(struct comedi_device * dev, struct comedi_s
}
if (samplesinbuf) {
m = devpriv->ai_data_len >> 1; // how many samples is to end of buffer
// DPRINTK("samps=%d m=%d %d %d\n",samplesinbuf,m,s->async->buf_int_count,s->async->buf_int_ptr);
m = devpriv->ai_data_len >> 1; /* how many samples is to end of buffer */
/* DPRINTK("samps=%d m=%d %d %d\n",samplesinbuf,m,s->async->buf_int_count,s->async->buf_int_ptr); */
sampls = m;
move_block_from_dma(dev, s,
devpriv->dmabuf_virt[devpriv->dma_actbuf],
samplesinbuf);
m = m - sampls; // m= how many samples was transfered
m = m - sampls; /* m= how many samples was transfered */
}
// DPRINTK("YYY\n");
/* DPRINTK("YYY\n"); */
if (!devpriv->ai_neverending)
if (devpriv->ai_act_scan >= devpriv->ai_scans) { /* all data sampled */
......@@ -657,9 +657,9 @@ static void interrupt_pci9118_ai_dma(struct comedi_device * dev, struct comedi_s
s->async->events |= COMEDI_CB_EOA;
}
if (devpriv->dma_doublebuf) { // switch dma buffers
if (devpriv->dma_doublebuf) { /* switch dma buffers */
devpriv->dma_actbuf = 1 - devpriv->dma_actbuf;
} else { // restart DMA if is not used double buffering
} else { /* restart DMA if is not used double buffering */
outl(devpriv->dmabuf_hw[0],
devpriv->iobase_a + AMCC_OP_REG_MWAR);
outl(devpriv->dmabuf_use_size[0],
......@@ -680,30 +680,30 @@ static irqreturn_t interrupt_pci9118(int irq, void *d PT_REGS_ARG)
unsigned int int_daq = 0, int_amcc, int_adstat;
if (!dev->attached)
return IRQ_NONE; // not fully initialized
return IRQ_NONE; /* not fully initialized */
int_daq = inl(dev->iobase + PCI9118_INTSRC) & 0xf; // get IRQ reasons from card
int_amcc = inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR); // get INT register from AMCC chip
int_daq = inl(dev->iobase + PCI9118_INTSRC) & 0xf; /* get IRQ reasons from card */
int_amcc = inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* get INT register from AMCC chip */
// DPRINTK("INT daq=0x%01x amcc=0x%08x MWAR=0x%08x MWTC=0x%08x ADSTAT=0x%02x ai_do=%d\n", int_daq, int_amcc, inl(devpriv->iobase_a+AMCC_OP_REG_MWAR), inl(devpriv->iobase_a+AMCC_OP_REG_MWTC), inw(dev->iobase+PCI9118_ADSTAT)&0x1ff,devpriv->ai_do);
/* DPRINTK("INT daq=0x%01x amcc=0x%08x MWAR=0x%08x MWTC=0x%08x ADSTAT=0x%02x ai_do=%d\n", int_daq, int_amcc, inl(devpriv->iobase_a+AMCC_OP_REG_MWAR), inl(devpriv->iobase_a+AMCC_OP_REG_MWTC), inw(dev->iobase+PCI9118_ADSTAT)&0x1ff,devpriv->ai_do); */
if ((!int_daq) && (!(int_amcc & ANY_S593X_INT)))
return IRQ_NONE; // interrupt from other source
return IRQ_NONE; /* interrupt from other source */
outl(int_amcc | 0x00ff0000, devpriv->iobase_a + AMCC_OP_REG_INTCSR); // shutdown IRQ reasons in AMCC
outl(int_amcc | 0x00ff0000, devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* shutdown IRQ reasons in AMCC */
int_adstat = inw(dev->iobase + PCI9118_ADSTAT) & 0x1ff; // get STATUS register
int_adstat = inw(dev->iobase + PCI9118_ADSTAT) & 0x1ff; /* get STATUS register */
if (devpriv->ai_do) {
if (devpriv->ai12_startstop)
if ((int_adstat & AdStatus_DTH) && (int_daq & Int_DTrg)) { // start stop of measure
if ((int_adstat & AdStatus_DTH) && (int_daq & Int_DTrg)) { /* start stop of measure */
if (devpriv->ai12_startstop & START_AI_EXT) {
devpriv->ai12_startstop &=
~START_AI_EXT;
if (!(devpriv->ai12_startstop &
STOP_AI_EXT))
pci9118_exttrg_del(dev, EXTTRG_AI); // deactivate EXT trigger
start_pacer(dev, devpriv->ai_do, devpriv->ai_divisor1, devpriv->ai_divisor2); // start pacer
pci9118_exttrg_del(dev, EXTTRG_AI); /* deactivate EXT trigger */
start_pacer(dev, devpriv->ai_do, devpriv->ai_divisor1, devpriv->ai_divisor2); /* start pacer */
outl(devpriv->AdControlReg,
dev->iobase + PCI9118_ADCNTRL);
} else {
......@@ -711,8 +711,8 @@ static irqreturn_t interrupt_pci9118(int irq, void *d PT_REGS_ARG)
ai12_startstop & STOP_AI_EXT) {
devpriv->ai12_startstop &=
~STOP_AI_EXT;
pci9118_exttrg_del(dev, EXTTRG_AI); // deactivate EXT trigger
devpriv->ai_neverending = 0; //well, on next interrupt from DMA/EOC measure will stop
pci9118_exttrg_del(dev, EXTTRG_AI); /* deactivate EXT trigger */
devpriv->ai_neverending = 0; /* well, on next interrupt from DMA/EOC measure will stop */
}
}
}
......@@ -949,11 +949,11 @@ static int pci9118_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevic
if (cmd->scan_begin_src == TRIG_TIMER) {
tmp = cmd->scan_begin_arg;
// rt_printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg);
/* rt_printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
&divisor2, &cmd->scan_begin_arg,
cmd->flags & TRIG_ROUND_MASK);
// rt_printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg);
/* rt_printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
if (cmd->scan_begin_arg < this_board->ai_ns_min)
cmd->scan_begin_arg = this_board->ai_ns_min;
if (tmp != cmd->scan_begin_arg)
......@@ -965,7 +965,7 @@ static int pci9118_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevic
i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
&divisor2, &cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
// rt_printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg);
/* rt_printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
if (cmd->convert_arg < this_board->ai_ns_min)
cmd->convert_arg = this_board->ai_ns_min;
if (tmp != cmd->convert_arg)
......@@ -979,7 +979,7 @@ static int pci9118_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevic
cmd->scan_begin_arg =
this_board->ai_ns_min *
(cmd->scan_end_arg + 2);
// rt_printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg);
/* rt_printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
err++;
}
} else {
......@@ -988,7 +988,7 @@ static int pci9118_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevic
cmd->scan_begin_arg =
cmd->convert_arg *
cmd->chanlist_len;
// rt_printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg);
/* rt_printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
err++;
}
}
......@@ -1001,7 +1001,7 @@ static int pci9118_ai_cmdtest(struct comedi_device * dev, struct comedi_subdevic
if (cmd->chanlist)
if (!check_channel_list(dev, s, cmd->chanlist_len,
cmd->chanlist, 0, 0))
return 5; // incorrect channels list
return 5; /* incorrect channels list */
return 0;
}
......@@ -1018,26 +1018,26 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
dmalen1 = devpriv->dmabuf_size[1];
DPRINTK("1 dmalen0=%d dmalen1=%d ai_data_len=%d\n", dmalen0, dmalen1,
devpriv->ai_data_len);
// isn't output buff smaller that our DMA buff?
/* isn't output buff smaller that our DMA buff? */
if (dmalen0 > (devpriv->ai_data_len)) {
dmalen0 = devpriv->ai_data_len & ~3L; // allign to 32bit down
dmalen0 = devpriv->ai_data_len & ~3L; /* allign to 32bit down */
}
if (dmalen1 > (devpriv->ai_data_len)) {
dmalen1 = devpriv->ai_data_len & ~3L; // allign to 32bit down
dmalen1 = devpriv->ai_data_len & ~3L; /* allign to 32bit down */
}
DPRINTK("2 dmalen0=%d dmalen1=%d \n", dmalen0, dmalen1);
// we want wake up every scan?
/* we want wake up every scan? */
if (devpriv->ai_flags & TRIG_WAKE_EOS) {
if (dmalen0 < (devpriv->ai_n_realscanlen << 1)) {
// uff, too short DMA buffer, disable EOS support!
/* uff, too short DMA buffer, disable EOS support! */
devpriv->ai_flags &= (~TRIG_WAKE_EOS);
rt_printk
("comedi%d: WAR: DMA0 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
dev->minor, dmalen0,
devpriv->ai_n_realscanlen << 1);
} else {
// short first DMA buffer to one scan
/* short first DMA buffer to one scan */
dmalen0 = devpriv->ai_n_realscanlen << 1;
DPRINTK("21 dmalen0=%d ai_n_realscanlen=%d useeoshandle=%d\n", dmalen0, devpriv->ai_n_realscanlen, devpriv->useeoshandle);
if (devpriv->useeoshandle)
......@@ -1052,14 +1052,14 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
}
if (devpriv->ai_flags & TRIG_WAKE_EOS) {
if (dmalen1 < (devpriv->ai_n_realscanlen << 1)) {
// uff, too short DMA buffer, disable EOS support!
/* uff, too short DMA buffer, disable EOS support! */
devpriv->ai_flags &= (~TRIG_WAKE_EOS);
rt_printk
("comedi%d: WAR: DMA1 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
dev->minor, dmalen1,
devpriv->ai_n_realscanlen << 1);
} else {
// short second DMA buffer to one scan
/* short second DMA buffer to one scan */
dmalen1 = devpriv->ai_n_realscanlen << 1;
DPRINTK("22 dmalen1=%d ai_n_realscanlen=%d useeoshandle=%d\n", dmalen1, devpriv->ai_n_realscanlen, devpriv->useeoshandle);
if (devpriv->useeoshandle)
......@@ -1074,26 +1074,26 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
}
DPRINTK("3 dmalen0=%d dmalen1=%d \n", dmalen0, dmalen1);
// transfer without TRIG_WAKE_EOS
/* transfer without TRIG_WAKE_EOS */
if (!(devpriv->ai_flags & TRIG_WAKE_EOS)) {
// if it's possible then allign DMA buffers to length of scan
/* if it's possible then allign DMA buffers to length of scan */
i = dmalen0;
dmalen0 =
(dmalen0 / (devpriv->ai_n_realscanlen << 1)) *
(devpriv->ai_n_realscanlen << 1);
dmalen0 &= ~3L;
if (!dmalen0)
dmalen0 = i; // uff. very long scan?
dmalen0 = i; /* uff. very long scan? */
i = dmalen1;
dmalen1 =
(dmalen1 / (devpriv->ai_n_realscanlen << 1)) *
(devpriv->ai_n_realscanlen << 1);
dmalen1 &= ~3L;
if (!dmalen1)
dmalen1 = i; // uff. very long scan?
// if measure isn't neverending then test, if it whole fits into one or two DMA buffers
dmalen1 = i; /* uff. very long scan? */
/* if measure isn't neverending then test, if it whole fits into one or two DMA buffers */
if (!devpriv->ai_neverending) {
// fits whole measure into one DMA buffer?
/* fits whole measure into one DMA buffer? */
if (dmalen0 >
((devpriv->ai_n_realscanlen << 1) *
devpriv->ai_scans)) {
......@@ -1104,7 +1104,7 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
DPRINTK("3.1 dmalen0=%d dmalen1=%d \n", dmalen0,
dmalen1);
dmalen0 &= ~3L;
} else { // fits whole measure into two DMA buffer?
} else { /* fits whole measure into two DMA buffer? */
if (dmalen1 >
((devpriv->ai_n_realscanlen << 1) *
devpriv->ai_scans - dmalen0))
......@@ -1121,7 +1121,7 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
DPRINTK("4 dmalen0=%d dmalen1=%d \n", dmalen0, dmalen1);
// these DMA buffer size we'll be used
/* these DMA buffer size we'll be used */
devpriv->dma_actbuf = 0;
devpriv->dmabuf_use_size[0] = dmalen0;
devpriv->dmabuf_use_size[1] = dmalen1;
......@@ -1143,18 +1143,18 @@ static int Compute_and_setup_dma(struct comedi_device * dev)
}
#endif
outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) & (~EN_A2P_TRANSFERS), devpriv->iobase_a + AMCC_OP_REG_MCSR); // stop DMA
outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) & (~EN_A2P_TRANSFERS), devpriv->iobase_a + AMCC_OP_REG_MCSR); /* stop DMA */
outl(devpriv->dmabuf_hw[0], devpriv->iobase_a + AMCC_OP_REG_MWAR);
outl(devpriv->dmabuf_use_size[0], devpriv->iobase_a + AMCC_OP_REG_MWTC);
// init DMA transfer
/* init DMA transfer */
outl(0x00000000 | AINT_WRITE_COMPL,
devpriv->iobase_a + AMCC_OP_REG_INTCSR);
// outl(0x02000000|AINT_WRITE_COMPL, devpriv->iobase_a+AMCC_OP_REG_INTCSR);
/* outl(0x02000000|AINT_WRITE_COMPL, devpriv->iobase_a+AMCC_OP_REG_INTCSR); */
outl(inl(devpriv->iobase_a +
AMCC_OP_REG_MCSR) | RESET_A2P_FLAGS | A2P_HI_PRIORITY |
EN_A2P_TRANSFERS, devpriv->iobase_a + AMCC_OP_REG_MCSR);
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | EN_A2P_TRANSFERS, devpriv->iobase_a + AMCC_OP_REG_INTCSR); // allow bus mastering
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | EN_A2P_TRANSFERS, devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* allow bus mastering */
DPRINTK("adl_pci9118 EDBG: END: Compute_and_setup_dma()\n");
return 0;
......@@ -1186,17 +1186,17 @@ static int pci9118_ai_docmd_sampl(struct comedi_device * dev, struct comedi_subd
return -EIO;
};
devpriv->int_ai_func = interrupt_pci9118_ai_onesample; //transfer function
devpriv->int_ai_func = interrupt_pci9118_ai_onesample; /* transfer function */
if (devpriv->ai12_startstop)
pci9118_exttrg_add(dev, EXTTRG_AI); // activate EXT trigger
pci9118_exttrg_add(dev, EXTTRG_AI); /* activate EXT trigger */
if ((devpriv->ai_do == 1) || (devpriv->ai_do == 2))
devpriv->IntControlReg |= Int_Timer;
devpriv->AdControlReg |= AdControl_Int;
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); // allow INT in AMCC
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* allow INT in AMCC */
if (!(devpriv->ai12_startstop & (START_AI_EXT | START_AI_INT))) {
outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
......@@ -1261,10 +1261,10 @@ static int pci9118_ai_docmd_dma(struct comedi_device * dev, struct comedi_subdev
};
if (devpriv->ai12_startstop) {
pci9118_exttrg_add(dev, EXTTRG_AI); // activate EXT trigger
pci9118_exttrg_add(dev, EXTTRG_AI); /* activate EXT trigger */
}
devpriv->int_ai_func = interrupt_pci9118_ai_dma; //transfer function
devpriv->int_ai_func = interrupt_pci9118_ai_dma; /* transfer function */
outl(0x02000000 | AINT_WRITE_COMPL,
devpriv->iobase_a + AMCC_OP_REG_INTCSR);
......@@ -1307,7 +1307,7 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_add_back = 0;
devpriv->ai_maskerr = 0x10e;
// prepare for start/stop conditions
/* prepare for start/stop conditions */
if (cmd->start_src == TRIG_EXT)
devpriv->ai12_startstop |= START_AI_EXT;
if (cmd->stop_src == TRIG_EXT) {
......@@ -1334,19 +1334,19 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_scans = 0;
}
// use sample&hold signal?
/* use sample&hold signal? */
if (cmd->convert_src == TRIG_NOW) {
devpriv->usessh = 1;
} // yes
} /* yes */
else {
devpriv->usessh = 0;
} // no
} /* no */
DPRINTK("1 neverending=%d scans=%u usessh=%d ai_startstop=0x%2x\n",
devpriv->ai_neverending, devpriv->ai_scans, devpriv->usessh,
devpriv->ai12_startstop);
// use additional sample at end of every scan to satisty DMA 32 bit transfer?
/* use additional sample at end of every scan to satisty DMA 32 bit transfer? */
devpriv->ai_add_front = 0;
devpriv->ai_add_back = 0;
devpriv->useeoshandle = 0;
......@@ -1358,27 +1358,27 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_add_back = 1;
}
if (cmd->convert_src == TRIG_TIMER) {
devpriv->usedma = 0; // use INT transfer if scanlist have only one channel
devpriv->usedma = 0; /* use INT transfer if scanlist have only one channel */
}
}
if ((cmd->flags & TRIG_WAKE_EOS) &&
(devpriv->ai_n_scanlen & 1) &&
(devpriv->ai_n_scanlen > 1)) {
if (cmd->scan_begin_src == TRIG_FOLLOW) {
//vpriv->useeoshandle=1; // change DMA transfer block to fit EOS on every second call
devpriv->usedma = 0; // XXX maybe can be corrected to use 16 bit DMA
} else { // well, we must insert one sample to end of EOS to meet 32 bit transfer
/* vpriv->useeoshandle=1; // change DMA transfer block to fit EOS on every second call */
devpriv->usedma = 0; /* XXX maybe can be corrected to use 16 bit DMA */
} else { /* well, we must insert one sample to end of EOS to meet 32 bit transfer */
devpriv->ai_add_back = 1;
}
}
} else { // interrupt transfer don't need any correction
} else { /* interrupt transfer don't need any correction */
devpriv->usedma = 0;
}
// we need software S&H signal? It add two samples before every scan as minimum
/* we need software S&H signal? It add two samples before every scan as minimum */
if (devpriv->usessh && devpriv->softsshdelay) {
devpriv->ai_add_front = 2;
if ((devpriv->usedma == 1) && (devpriv->ai_add_back == 1)) { // move it to front
if ((devpriv->usedma == 1) && (devpriv->ai_add_back == 1)) { /* move it to front */
devpriv->ai_add_front++;
devpriv->ai_add_back = 0;
}
......@@ -1387,17 +1387,17 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
addchans = devpriv->softsshdelay / cmd->convert_arg;
if (devpriv->softsshdelay % cmd->convert_arg)
addchans++;
if (addchans > (devpriv->ai_add_front - 1)) { // uff, still short :-(
if (addchans > (devpriv->ai_add_front - 1)) { /* uff, still short :-( */
devpriv->ai_add_front = addchans + 1;
if (devpriv->usedma == 1)
if ((devpriv->ai_add_front +
devpriv->ai_n_chan +
devpriv->ai_add_back) & 1)
devpriv->ai_add_front++; // round up to 32 bit
devpriv->ai_add_front++; /* round up to 32 bit */
}
} // well, we now know what must be all added
} /* well, we now know what must be all added */
devpriv->ai_n_realscanlen = // what we must take from card in real to have ai_n_scanlen on output?
devpriv->ai_n_realscanlen = /* what we must take from card in real to have ai_n_scanlen on output? */
(devpriv->ai_add_front + devpriv->ai_n_chan +
devpriv->ai_add_back) * (devpriv->ai_n_scanlen /
devpriv->ai_n_chan);
......@@ -1408,7 +1408,7 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_n_chan, devpriv->ai_add_back,
devpriv->ai_n_scanlen);
// check and setup channel list
/* check and setup channel list */
if (!check_channel_list(dev, s, devpriv->ai_n_chan,
devpriv->ai_chanlist, devpriv->ai_add_front,
devpriv->ai_add_back))
......@@ -1419,9 +1419,9 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->useeoshandle))
return -EINVAL;
// compute timers settings
// simplest way, fr=4Mhz/(tim1*tim2), channel manipulation without timers effect
if (((cmd->scan_begin_src == TRIG_FOLLOW) || (cmd->scan_begin_src == TRIG_EXT) || (cmd->scan_begin_src == TRIG_INT)) && (cmd->convert_src == TRIG_TIMER)) { // both timer is used for one time
/* compute timers settings */
/* simplest way, fr=4Mhz/(tim1*tim2), channel manipulation without timers effect */
if (((cmd->scan_begin_src == TRIG_FOLLOW) || (cmd->scan_begin_src == TRIG_EXT) || (cmd->scan_begin_src == TRIG_INT)) && (cmd->convert_src == TRIG_TIMER)) { /* both timer is used for one time */
if (cmd->scan_begin_src == TRIG_EXT) {
devpriv->ai_do = 4;
} else {
......@@ -1435,7 +1435,7 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_timer2 = cmd->convert_arg;
}
if ((cmd->scan_begin_src == TRIG_TIMER) && ((cmd->convert_src == TRIG_TIMER) || (cmd->convert_src == TRIG_NOW))) { // double timed action
if ((cmd->scan_begin_src == TRIG_TIMER) && ((cmd->convert_src == TRIG_TIMER) || (cmd->convert_src == TRIG_NOW))) { /* double timed action */
if (!devpriv->usedma) {
comedi_error(dev,
"cmd->scan_begin_src=TRIG_TIMER works only with bus mastering!");
......@@ -1457,15 +1457,15 @@ static int pci9118_ai_cmd(struct comedi_device * dev, struct comedi_subdevice *
devpriv->ai_do = 3;
}
start_pacer(dev, -1, 0, 0); // stop pacer
start_pacer(dev, -1, 0, 0); /* stop pacer */
devpriv->AdControlReg = 0; // bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable DMA
devpriv->AdControlReg = 0; /* bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable DMA */
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg; // positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg; /* positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
comedi_udelay(1);
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
inl(dev->iobase + PCI9118_ADSTAT); // flush A/D and INT status register
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
inl(dev->iobase + PCI9118_ADSTAT); /* flush A/D and INT status register */
inl(dev->iobase + PCI9118_INTSRC);
devpriv->ai_act_scan = 0;
......@@ -1505,11 +1505,11 @@ static int check_channel_list(struct comedi_device * dev, struct comedi_subdevic
}
if (CR_AREF(chanlist[0]) == AREF_DIFF)
differencial = 1; // all input must be diff
differencial = 1; /* all input must be diff */
if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
bipolar = 1; // all input must be bipolar
bipolar = 1; /* all input must be bipolar */
if (n_chan > 1)
for (i = 1; i < n_chan; i++) { // check S.E/diff
for (i = 1; i < n_chan; i++) { /* check S.E/diff */
if ((CR_AREF(chanlist[i]) == AREF_DIFF) !=
(differencial)) {
comedi_error(dev,
......@@ -1552,27 +1552,27 @@ static int setup_channel_list(struct comedi_device * dev, struct comedi_subdevic
}
if (CR_AREF(chanlist[0]) == AREF_DIFF)
differencial = 1; // all input must be diff
differencial = 1; /* all input must be diff */
if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
bipolar = 1; // all input must be bipolar
bipolar = 1; /* all input must be bipolar */
// All is ok, so we can setup channel/range list
/* All is ok, so we can setup channel/range list */
if (!bipolar) {
devpriv->AdControlReg |= AdControl_UniP; // set unibipolar
devpriv->AdControlReg |= AdControl_UniP; /* set unibipolar */
} else {
devpriv->AdControlReg &= ((~AdControl_UniP) & 0xff); // enable bipolar
devpriv->AdControlReg &= ((~AdControl_UniP) & 0xff); /* enable bipolar */
}
if (differencial) {
devpriv->AdControlReg |= AdControl_Diff; // enable diff inputs
devpriv->AdControlReg |= AdControl_Diff; /* enable diff inputs */
} else {
devpriv->AdControlReg &= ((~AdControl_Diff) & 0xff); // set single ended inputs
devpriv->AdControlReg &= ((~AdControl_Diff) & 0xff); /* set single ended inputs */
}
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); // setup mode
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); /* setup mode */
outl(2, dev->iobase + PCI9118_SCANMOD); // gods know why this sequence!
outl(2, dev->iobase + PCI9118_SCANMOD); /* gods know why this sequence! */
outl(0, dev->iobase + PCI9118_SCANMOD);
outl(1, dev->iobase + PCI9118_SCANMOD);
......@@ -1582,12 +1582,12 @@ static int setup_channel_list(struct comedi_device * dev, struct comedi_subdevic
devpriv->chanlist[i] = 0x55aa;
#endif
if (frontadd) { // insert channels for S&H
if (frontadd) { /* insert channels for S&H */
ssh = devpriv->softsshsample;
DPRINTK("FA: %04x: ", ssh);
for (i = 0; i < frontadd; i++) { // store range list to card
scanquad = CR_CHAN(chanlist[0]); // get channel number;
gain = CR_RANGE(chanlist[0]); // get gain number
for (i = 0; i < frontadd; i++) { /* store range list to card */
scanquad = CR_CHAN(chanlist[0]); /* get channel number; */
gain = CR_RANGE(chanlist[0]); /* get gain number */
scanquad |= ((gain & 0x03) << 8);
outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
DPRINTK("%02x ", scanquad | ssh);
......@@ -1597,23 +1597,23 @@ static int setup_channel_list(struct comedi_device * dev, struct comedi_subdevic
}
DPRINTK("SL: ", ssh);
for (i = 0; i < n_chan; i++) { // store range list to card
scanquad = CR_CHAN(chanlist[i]); // get channel number;
for (i = 0; i < n_chan; i++) { /* store range list to card */
scanquad = CR_CHAN(chanlist[i]); /* get channel number; */
#ifdef PCI9118_PARANOIDCHECK
devpriv->chanlist[i ^ usedma] = (scanquad & 0xf) << rot;
#endif
gain = CR_RANGE(chanlist[i]); // get gain number
gain = CR_RANGE(chanlist[i]); /* get gain number */
scanquad |= ((gain & 0x03) << 8);
outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
DPRINTK("%02x ", scanquad | ssh);
}
DPRINTK("\n ");
if (backadd) { // insert channels for fit onto 32bit DMA
if (backadd) { /* insert channels for fit onto 32bit DMA */
DPRINTK("BA: %04x: ", ssh);
for (i = 0; i < backadd; i++) { // store range list to card
scanquad = CR_CHAN(chanlist[0]); // get channel number;
gain = CR_RANGE(chanlist[0]); // get gain number
for (i = 0; i < backadd; i++) { /* store range list to card */
scanquad = CR_CHAN(chanlist[0]); /* get channel number; */
gain = CR_RANGE(chanlist[0]); /* get gain number */
scanquad |= ((gain & 0x03) << 8);
outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
DPRINTK("%02x ", scanquad | ssh);
......@@ -1621,13 +1621,13 @@ static int setup_channel_list(struct comedi_device * dev, struct comedi_subdevic
DPRINTK("\n ");
}
#ifdef PCI9118_PARANOIDCHECK
devpriv->chanlist[n_chan ^ usedma] = devpriv->chanlist[0 ^ usedma]; // for 32bit oerations
devpriv->chanlist[n_chan ^ usedma] = devpriv->chanlist[0 ^ usedma]; /* for 32bit oerations */
if (useeos) {
for (i = 1; i < n_chan; i++) { // store range list to card
for (i = 1; i < n_chan; i++) { /* store range list to card */
devpriv->chanlist[(n_chan + i) ^ usedma] =
(CR_CHAN(chanlist[i]) & 0xf) << rot;
}
devpriv->chanlist[(2 * n_chan) ^ usedma] = devpriv->chanlist[0 ^ usedma]; // for 32bit oerations
devpriv->chanlist[(2 * n_chan) ^ usedma] = devpriv->chanlist[0 ^ usedma]; /* for 32bit oerations */
useeos = 2;
} else {
useeos = 1;
......@@ -1640,11 +1640,11 @@ static int setup_channel_list(struct comedi_device * dev, struct comedi_subdevic
DPRINTK("\n ");
#endif
#endif
outl(0, dev->iobase + PCI9118_SCANMOD); // close scan queue
// comedi_udelay(100); // important delay, or first sample will be cripled
outl(0, dev->iobase + PCI9118_SCANMOD); /* close scan queue */
/* comedi_udelay(100); important delay, or first sample will be cripled */
DPRINTK("adl_pci9118 EDBG: END: setup_channel_list()\n");
return 1; // we can serve this with scan logic
return 1; /* we can serve this with scan logic */
}
/*
......@@ -1672,17 +1672,17 @@ static void pci9118_calc_divisors(char mode, struct comedi_device * dev,
*tim2 = this_board->ai_ns_min;
DPRINTK("1 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
*div1 = *tim2 / devpriv->i8254_osc_base; // convert timer (burst)
*div1 = *tim2 / devpriv->i8254_osc_base; /* convert timer (burst) */
DPRINTK("2 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
if (*div1 < this_board->ai_pacer_min)
*div1 = this_board->ai_pacer_min;
DPRINTK("3 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
*div2 = *tim1 / devpriv->i8254_osc_base; // scan timer
*div2 = *tim1 / devpriv->i8254_osc_base; /* scan timer */
DPRINTK("4 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
*div2 = *div2 / *div1; // major timer is c1*c2
*div2 = *div2 / *div1; /* major timer is c1*c2 */
DPRINTK("5 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
if (*div2 < chans)
......@@ -1690,9 +1690,9 @@ static void pci9118_calc_divisors(char mode, struct comedi_device * dev,
DPRINTK("6 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
*tim1, *tim2);
*tim2 = *div1 * devpriv->i8254_osc_base; // real convert timer
*tim2 = *div1 * devpriv->i8254_osc_base; /* real convert timer */
if (usessh & (chnsshfront == 0)) // use BSSH signal
if (usessh & (chnsshfront == 0)) /* use BSSH signal */
if (*div2 < (chans + 2))
*div2 = chans + 2;
......@@ -1715,7 +1715,7 @@ static void start_pacer(struct comedi_device * dev, int mode, unsigned int divis
{
outl(0x74, dev->iobase + PCI9118_CNTCTRL);
outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
// outl(0x30, dev->iobase + PCI9118_CNTCTRL);
/* outl(0x30, dev->iobase + PCI9118_CNTCTRL); */
comedi_udelay(1);
if ((mode == 1) || (mode == 2) || (mode == 4)) {
......@@ -1732,11 +1732,11 @@ static void start_pacer(struct comedi_device * dev, int mode, unsigned int divis
static int pci9118_exttrg_add(struct comedi_device * dev, unsigned char source)
{
if (source > 3)
return -1; // incorrect source
return -1; /* incorrect source */
devpriv->exttrg_users |= (1 << source);
devpriv->IntControlReg |= Int_DTrg;
outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); // allow INT in AMCC
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* allow INT in AMCC */
return 0;
}
......@@ -1746,12 +1746,12 @@ static int pci9118_exttrg_add(struct comedi_device * dev, unsigned char source)
static int pci9118_exttrg_del(struct comedi_device * dev, unsigned char source)
{
if (source > 3)
return -1; // incorrect source
return -1; /* incorrect source */
devpriv->exttrg_users &= ~(1 << source);
if (!devpriv->exttrg_users) { // shutdown ext trg intterrupts
if (!devpriv->exttrg_users) { /* shutdown ext trg intterrupts */
devpriv->IntControlReg &= ~Int_DTrg;
if (!devpriv->IntControlReg) // all IRQ disabled
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) & (~0x00001f00), devpriv->iobase_a + AMCC_OP_REG_INTCSR); // disable int in AMCC
if (!devpriv->IntControlReg) /* all IRQ disabled */
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) & (~0x00001f00), devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* disable int in AMCC */
outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
}
return 0;
......@@ -1763,17 +1763,17 @@ static int pci9118_exttrg_del(struct comedi_device * dev, unsigned char source)
static int pci9118_ai_cancel(struct comedi_device * dev, struct comedi_subdevice * s)
{
if (devpriv->usedma)
outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) & (~EN_A2P_TRANSFERS), devpriv->iobase_a + AMCC_OP_REG_MCSR); // stop DMA
outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) & (~EN_A2P_TRANSFERS), devpriv->iobase_a + AMCC_OP_REG_MCSR); /* stop DMA */
pci9118_exttrg_del(dev, EXTTRG_AI);
start_pacer(dev, 0, 0, 0); // stop 8254 counters
start_pacer(dev, 0, 0, 0); /* stop 8254 counters */
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); // positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); /* positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
devpriv->AdControlReg = 0x00;
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); // bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); /* bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA */
outl(0, dev->iobase + PCI9118_BURST);
outl(1, dev->iobase + PCI9118_SCANMOD);
outl(2, dev->iobase + PCI9118_SCANMOD); // reset scan queue
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
outl(2, dev->iobase + PCI9118_SCANMOD); /* reset scan queue */
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
devpriv->ai_do = 0;
devpriv->usedma = 0;
......@@ -1787,7 +1787,7 @@ static int pci9118_ai_cancel(struct comedi_device * dev, struct comedi_subdevice
devpriv->dma_actbuf = 0;
if (!devpriv->IntControlReg)
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); // allow INT in AMCC
outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00, devpriv->iobase_a + AMCC_OP_REG_INTCSR); /* allow INT in AMCC */
return 0;
}
......@@ -1800,31 +1800,31 @@ static int pci9118_reset(struct comedi_device * dev)
devpriv->IntControlReg = 0;
devpriv->exttrg_users = 0;
inl(dev->iobase + PCI9118_INTCTRL);
outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL); // disable interrupts source
outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL); /* disable interrupts source */
outl(0x30, dev->iobase + PCI9118_CNTCTRL);
// outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
start_pacer(dev, 0, 0, 0); // stop 8254 counters
/* outl(0xb4, dev->iobase + PCI9118_CNTCTRL); */
start_pacer(dev, 0, 0, 0); /* stop 8254 counters */
devpriv->AdControlReg = 0;
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); // bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); /* bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA */
outl(0, dev->iobase + PCI9118_BURST);
outl(1, dev->iobase + PCI9118_SCANMOD);
outl(2, dev->iobase + PCI9118_SCANMOD); // reset scan queue
outl(2, dev->iobase + PCI9118_SCANMOD); /* reset scan queue */
devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); // positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop
outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC); /* positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
devpriv->ao_data[0] = 2047;
devpriv->ao_data[1] = 2047;
outl(devpriv->ao_data[0], dev->iobase + PCI9118_DA1); // reset A/D outs to 0V
outl(devpriv->ao_data[0], dev->iobase + PCI9118_DA1); /* reset A/D outs to 0V */
outl(devpriv->ao_data[1], dev->iobase + PCI9118_DA2);
outl(0, dev->iobase + PCI9118_DO); // reset digi outs to L
outl(0, dev->iobase + PCI9118_DO); /* reset digi outs to L */
comedi_udelay(10);
inl(dev->iobase + PCI9118_AD_DATA);
outl(0, dev->iobase + PCI9118_DELFIFO); // flush FIFO
outl(0, dev->iobase + PCI9118_INTSRC); // remove INT requests
inl(dev->iobase + PCI9118_ADSTAT); // flush A/D status register
inl(dev->iobase + PCI9118_INTSRC); // flush INT requests
outl(0, dev->iobase + PCI9118_DELFIFO); /* flush FIFO */
outl(0, dev->iobase + PCI9118_INTSRC); /* remove INT requests */
inl(dev->iobase + PCI9118_ADSTAT); /* flush A/D status register */
inl(dev->iobase + PCI9118_INTSRC); /* flush INT requests */
devpriv->AdControlReg = 0;
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); // bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA
outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL); /* bipolar, S.E., use 8254, stop 8354, internal trigger, soft trigger, disable INT and DMA */
devpriv->cnt0_users = 0;
devpriv->exttrg_users = 0;
......@@ -1854,7 +1854,7 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
opt_bus = it->options[0];
opt_slot = it->options[1];
if (it->options[3] & 1) {
master = 0; // user don't want use bus master
master = 0; /* user don't want use bus master */
} else {
master = 1;
}
......@@ -1920,7 +1920,7 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
pci9118_reset(dev);
if (it->options[3] & 2)
irq = 0; // user don't want use IRQ
irq = 0; /* user don't want use IRQ */
if (irq > 0) {
if (comedi_request_irq(irq, interrupt_pci9118, IRQF_SHARED,
"ADLink PCI-9118", dev)) {
......@@ -1936,7 +1936,7 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
dev->irq = irq;
if (master) { // alloc DMA buffers
if (master) { /* alloc DMA buffers */
devpriv->dma_doublebuf = 0;
for (i = 0; i < 2; i++) {
for (pages = 4; pages >= 0; pages--)
......@@ -1974,16 +1974,16 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
if (it->options[2] > 0) {
devpriv->usemux = it->options[2];
if (devpriv->usemux > 256)
devpriv->usemux = 256; // max 256 channels!
devpriv->usemux = 256; /* max 256 channels! */
if (it->options[4] > 0)
if (devpriv->usemux > 128) {
devpriv->usemux = 128; // max 128 channels with softare S&H!
devpriv->usemux = 128; /* max 128 channels with softare S&H! */
}
rt_printk(", ext. mux %d channels", devpriv->usemux);
}
devpriv->softsshdelay = it->options[4];
if (devpriv->softsshdelay < 0) { // select sample&hold signal polarity
if (devpriv->softsshdelay < 0) { /* select sample&hold signal polarity */
devpriv->softsshdelay = -devpriv->softsshdelay;
devpriv->softsshsample = 0x80;
devpriv->softsshhold = 0x00;
......@@ -1995,7 +1995,7 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
rt_printk(".\n");
pci_read_config_word(devpriv->pcidev, PCI_COMMAND, &u16w);
pci_write_config_word(devpriv->pcidev, PCI_COMMAND, u16w | 64); // Enable parity check for parity error
pci_write_config_word(devpriv->pcidev, PCI_COMMAND, u16w | 64); /* Enable parity check for parity error */
if ((ret = alloc_subdevices(dev, 4)) < 0)
return ret;
......@@ -2052,9 +2052,9 @@ static int pci9118_attach(struct comedi_device * dev, struct comedi_devconfig *
s->insn_bits = pci9118_insn_bits_do;
devpriv->valid = 1;
devpriv->i8254_osc_base = 250; // 250ns=4MHz
devpriv->ai_maskharderr = 0x10a; // default measure crash condition
if (it->options[5]) // disable some requested
devpriv->i8254_osc_base = 250; /* 250ns=4MHz */
devpriv->ai_maskharderr = 0x10a; /* default measure crash condition */
if (it->options[5]) /* disable some requested */
devpriv->ai_maskharderr &= ~it->options[5];
switch (this_board->ai_maxdata) {
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7