diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl816.c | 258 |
1 files changed, 129 insertions, 129 deletions
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index 515ba74..5382adf 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -43,38 +43,38 @@ Configuration Options: #define DEBUG(x) x -// boards constants -// IO space len +/* boards constants */ +/* IO space len */ #define PCLx1x_RANGE 16 -//#define outb(x,y) printk("OUTB(%x, 200+%d)\n", x,y-0x200); outb(x,y) +/* #define outb(x,y) printk("OUTB(%x, 200+%d)\n", x,y-0x200); outb(x,y) */ -// INTEL 8254 counters +/* INTEL 8254 counters */ #define PCL816_CTR0 4 #define PCL816_CTR1 5 #define PCL816_CTR2 6 -// R: counter read-back register W: counter control +/* R: counter read-back register W: counter control */ #define PCL816_CTRCTL 7 -// R: A/D high byte W: A/D range control +/* R: A/D high byte W: A/D range control */ #define PCL816_RANGE 9 -// W: clear INT request +/* W: clear INT request */ #define PCL816_CLRINT 10 -// R: next mux scan channel W: mux scan channel & range control pointer +/* R: next mux scan channel W: mux scan channel & range control pointer */ #define PCL816_MUX 11 -// R/W: operation control register +/* R/W: operation control register */ #define PCL816_CONTROL 12 -// R: return status byte W: set DMA/IRQ +/* R: return status byte W: set DMA/IRQ */ #define PCL816_STATUS 13 #define PCL816_STATUS_DRDY_MASK 0x80 -// R: low byte of A/D W: soft A/D trigger +/* R: low byte of A/D W: soft A/D trigger */ #define PCL816_AD_LO 8 -// R: high byte of A/D W: A/D range control +/* R: high byte of A/D W: A/D range control */ #define PCL816_AD_HI 9 -// type of interrupt handler +/* type of interrupt handler */ #define INT_TYPE_AI1_INT 1 #define INT_TYPE_AI1_DMA 2 #define INT_TYPE_AI3_INT 4 @@ -83,7 +83,7 @@ Configuration Options: #define INT_TYPE_AI1_DMA_RTC 9 #define INT_TYPE_AI3_DMA_RTC 10 -// RTC stuff... +/* RTC stuff... */ #define RTC_IRQ 8 #define RTC_IO_EXTENT 0x10 #endif @@ -103,35 +103,35 @@ static const struct comedi_lrange range_pcl816 = { 8, { }; struct pcl816_board { - const char *name; // board name - int n_ranges; // len of range list - int n_aichan; // num of A/D chans in diferencial mode - unsigned int ai_ns_min; // minimal alllowed delay between samples (in ns) - int n_aochan; // num of D/A chans - int n_dichan; // num of DI chans - int n_dochan; // num of DO chans - const struct comedi_lrange *ai_range_type; // default A/D rangelist - const struct comedi_lrange *ao_range_type; // dafault D/A rangelist - unsigned int io_range; // len of IO space - unsigned int IRQbits; // allowed interrupts - unsigned int DMAbits; // allowed DMA chans - int ai_maxdata; // maxdata for A/D - int ao_maxdata; // maxdata for D/A - int ai_chanlist; // allowed len of channel list A/D - int ao_chanlist; // allowed len of channel list D/A - int i8254_osc_base; // 1/frequency of on board oscilator in ns + const char *name; /* board name */ + int n_ranges; /* len of range list */ + int n_aichan; /* num of A/D chans in diferencial mode */ + unsigned int ai_ns_min; /* minimal alllowed delay between samples (in ns) */ + int n_aochan; /* num of D/A chans */ + int n_dichan; /* num of DI chans */ + int n_dochan; /* num of DO chans */ + const struct comedi_lrange *ai_range_type; /* default A/D rangelist */ + const struct comedi_lrange *ao_range_type; /* dafault D/A rangelist */ + unsigned int io_range; /* len of IO space */ + unsigned int IRQbits; /* allowed interrupts */ + unsigned int DMAbits; /* allowed DMA chans */ + int ai_maxdata; /* maxdata for A/D */ + int ao_maxdata; /* maxdata for D/A */ + int ai_chanlist; /* allowed len of channel list A/D */ + int ao_chanlist; /* allowed len of channel list D/A */ + int i8254_osc_base; /* 1/frequency of on board oscilator in ns */ }; static const struct pcl816_board boardtypes[] = { {"pcl816", 8, 16, 10000, 1, 16, 16, &range_pcl816, &range_pcl816, PCLx1x_RANGE, - 0x00fc, // IRQ mask - 0x0a, // DMA mask - 0xffff, // 16-bit card - 0xffff, // D/A maxdata + 0x00fc, /* IRQ mask */ + 0x0a, /* DMA mask */ + 0xffff, /* 16-bit card */ + 0xffff, /* D/A maxdata */ 1024, - 1, // ao chan list + 1, /* ao chan list */ 100}, {"pcl814b", 8, 16, 10000, 1, 16, 16, &range_pcl816, &range_pcl816, PCLx1x_RANGE, @@ -170,42 +170,42 @@ COMEDI_INITCLEANUP(driver_pcl816); struct pcl816_private { - unsigned int dma; // used DMA, 0=don't use DMA - int dma_rtc; // 1=RTC used with DMA, 0=no RTC alloc + unsigned int dma; /* used DMA, 0=don't use DMA */ + int dma_rtc; /* 1=RTC used with DMA, 0=no RTC alloc */ #ifdef unused - unsigned long rtc_iobase; // RTC port region + unsigned long rtc_iobase; /* RTC port region */ unsigned int rtc_iosize; unsigned int rtc_irq; #endif - unsigned long dmabuf[2]; // pointers to begin of DMA buffers - unsigned int dmapages[2]; // len of DMA buffers in PAGE_SIZEs - unsigned int hwdmaptr[2]; // hardware address of DMA buffers - unsigned int hwdmasize[2]; // len of DMA buffers in Bytes - unsigned int dmasamplsize; // size in samples hwdmasize[0]/2 - unsigned int last_top_dma; // DMA pointer in last RTC int - int next_dma_buf; // which DMA buffer will be used next round - long dma_runs_to_end; // how many we must permorm DMA transfer to end of record - unsigned long last_dma_run; // how many bytes we must transfer on last DMA page - - unsigned int ai_scans; // len of scanlist - unsigned char ai_neverending; // if=1, then we do neverending record (you must use cancel()) - int irq_free; // 1=have allocated IRQ - int irq_blocked; // 1=IRQ now uses any subdev + unsigned long dmabuf[2]; /* pointers to begin of DMA buffers */ + unsigned int dmapages[2]; /* len of DMA buffers in PAGE_SIZEs */ + unsigned int hwdmaptr[2]; /* hardware address of DMA buffers */ + unsigned int hwdmasize[2]; /* len of DMA buffers in Bytes */ + unsigned int dmasamplsize; /* size in samples hwdmasize[0]/2 */ + unsigned int last_top_dma; /* DMA pointer in last RTC int */ + int next_dma_buf; /* which DMA buffer will be used next round */ + long dma_runs_to_end; /* how many we must permorm DMA transfer to end of record */ + unsigned long last_dma_run; /* how many bytes we must transfer on last DMA page */ + + unsigned int ai_scans; /* len of scanlist */ + unsigned char ai_neverending; /* if=1, then we do neverending record (you must use cancel()) */ + int irq_free; /* 1=have allocated IRQ */ + int irq_blocked; /* 1=IRQ now uses any subdev */ #ifdef unused - int rtc_irq_blocked; // 1=we now do AI with DMA&RTC + int rtc_irq_blocked; /* 1=we now do AI with DMA&RTC */ #endif - int irq_was_now_closed; // when IRQ finish, there's stored int816_mode for last interrupt - int int816_mode; // who now uses IRQ - 1=AI1 int, 2=AI1 dma, 3=AI3 int, 4AI3 dma - struct comedi_subdevice *last_int_sub; // ptr to subdevice which now finish - int ai_act_scan; // how many scans we finished - unsigned int ai_act_chanlist[16]; // MUX setting for actual AI operations - unsigned int ai_act_chanlist_len; // how long is actual MUX list - unsigned int ai_act_chanlist_pos; // actual position in MUX list - unsigned int ai_poll_ptr; // how many sampes transfer poll - struct comedi_subdevice *sub_ai; // ptr to AI subdevice + int irq_was_now_closed; /* when IRQ finish, there's stored int816_mode for last interrupt */ + int int816_mode; /* who now uses IRQ - 1=AI1 int, 2=AI1 dma, 3=AI3 int, 4AI3 dma */ + struct comedi_subdevice *last_int_sub; /* ptr to subdevice which now finish */ + int ai_act_scan; /* how many scans we finished */ + unsigned int ai_act_chanlist[16]; /* MUX setting for actual AI operations */ + unsigned int ai_act_chanlist_len; /* how long is actual MUX list */ + unsigned int ai_act_chanlist_pos; /* actual position in MUX list */ + unsigned int ai_poll_ptr; /* how many sampes transfer poll */ + struct comedi_subdevice *sub_ai; /* ptr to AI subdevice */ #ifdef unused - struct timer_list rtc_irq_timer; // timer for RTC sanity check - unsigned long rtc_freq; // RTC int freq + struct timer_list rtc_irq_timer; /* timer for RTC sanity check */ + unsigned long rtc_freq; /* RTC int freq */ #endif }; @@ -237,12 +237,12 @@ static int pcl816_ai_insn_read(struct comedi_device * dev, struct comedi_subdevi int timeout; DPRINTK("mode 0 analog input\n"); - // software trigger, DMA and INT off + /* software trigger, DMA and INT off */ outb(0, dev->iobase + PCL816_CONTROL); - // clear INT (conversion end) flag + /* clear INT (conversion end) flag */ outb(0, dev->iobase + PCL816_CLRINT); - // Set the input channel + /* Set the input channel */ outb(CR_CHAN(insn->chanspec) & 0xf, dev->iobase + PCL816_MUX); outb(CR_RANGE(insn->chanspec), dev->iobase + PCL816_RANGE); /* select gain */ @@ -254,7 +254,7 @@ static int pcl816_ai_insn_read(struct comedi_device * dev, struct comedi_subdevi while (timeout--) { if (!(inb(dev->iobase + PCL816_STATUS) & PCL816_STATUS_DRDY_MASK)) { - // return read value + /* return read value */ data[n] = ((inb(dev->iobase + PCL816_AD_HI) << 8) | @@ -265,7 +265,7 @@ static int pcl816_ai_insn_read(struct comedi_device * dev, struct comedi_subdevi } comedi_udelay(1); } - // Return timeout error + /* Return timeout error */ if (!timeout) { comedi_error(dev, "A/D insn timeout\n"); data[0] = 0; @@ -295,7 +295,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d) break; comedi_udelay(1); } - if (!timeout) { // timeout, bail error + if (!timeout) { /* timeout, bail error */ outb(0, dev->iobase + PCL816_CLRINT); /* clear INT request */ comedi_error(dev, "A/D mode1/3 IRQ without DRDY!"); pcl816_ai_cancel(dev, s); @@ -305,7 +305,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d) } - // get the sample + /* get the sample */ low = inb(dev->iobase + PCL816_AD_LO); hi = inb(dev->iobase + PCL816_AD_HI); @@ -352,7 +352,7 @@ static void transfer_from_dma_buf(struct comedi_device * dev, struct comedi_subd } if (!devpriv->ai_neverending) - if (devpriv->ai_act_scan >= devpriv->ai_scans) { // all data sampled + if (devpriv->ai_act_scan >= devpriv->ai_scans) { /* all data sampled */ pcl816_ai_cancel(dev, s); s->async->events |= COMEDI_CB_EOA; s->async->events |= COMEDI_CB_BLOCK; @@ -374,12 +374,12 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d) disable_dma(devpriv->dma); this_dma_buf = devpriv->next_dma_buf; - if ((devpriv->dma_runs_to_end > -1) || devpriv->ai_neverending) { // switch dma bufs + if ((devpriv->dma_runs_to_end > -1) || devpriv->ai_neverending) { /* switch dma bufs */ devpriv->next_dma_buf = 1 - devpriv->next_dma_buf; set_dma_mode(devpriv->dma, DMA_MODE_READ); dma_flags = claim_dma_lock(); -// clear_dma_ff (devpriv->dma); +/* clear_dma_ff (devpriv->dma); */ set_dma_addr(devpriv->dma, devpriv->hwdmaptr[devpriv->next_dma_buf]); if (devpriv->dma_runs_to_end) { @@ -433,7 +433,7 @@ static irqreturn_t interrupt_pcl816(int irq, void *d PT_REGS_ARG) (!devpriv->int816_mode)) { if (devpriv->irq_was_now_closed) { devpriv->irq_was_now_closed = 0; - // comedi_error(dev,"last IRQ.."); + /* comedi_error(dev,"last IRQ.."); */ return IRQ_HANDLED; } comedi_error(dev, "bad IRQ!"); @@ -610,7 +610,7 @@ static int pcl816_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s return -EINVAL; if (cmd->scan_end_arg != cmd->chanlist_len) return -EINVAL; -// if(cmd->chanlist_len>MAX_CHANLIST_LEN) return -EINVAL; +/* if(cmd->chanlist_len>MAX_CHANLIST_LEN) return -EINVAL; */ if (devpriv->irq_blocked) return -EBUSY; @@ -621,7 +621,7 @@ static int pcl816_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s i8253_cascade_ns_to_timer(this_board->i8254_osc_base, &divisor1, &divisor2, &cmd->convert_arg, cmd->flags & TRIG_ROUND_MASK); - if (divisor1 == 1) { // PCL816 crash if any divisor is set to 1 + if (divisor1 == 1) { /* PCL816 crash if any divisor is set to 1 */ divisor1 = 2; divisor2 /= 2; } @@ -631,7 +631,7 @@ static int pcl816_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s } } - start_pacer(dev, -1, 0, 0); // stop pacer + start_pacer(dev, -1, 0, 0); /* stop pacer */ if (!check_and_setup_channel_list(dev, s, cmd->chanlist, cmd->chanlist_len)) @@ -652,19 +652,19 @@ static int pcl816_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s devpriv->ai_neverending = 1; } - if ((cmd->flags & TRIG_WAKE_EOS)) { // don't we want wake up every scan? + if ((cmd->flags & TRIG_WAKE_EOS)) { /* don't we want wake up every scan? */ printk("pl816: You wankt WAKE_EOS but I dont want handle it"); - // devpriv->ai_eos=1; - //if (devpriv->ai_n_chan==1) - // devpriv->dma=0; // DMA is useless for this situation + /* devpriv->ai_eos=1; */ + /* if (devpriv->ai_n_chan==1) */ + /* devpriv->dma=0; // DMA is useless for this situation */ } if (devpriv->dma) { bytes = devpriv->hwdmasize[0]; if (!devpriv->ai_neverending) { - bytes = s->async->cmd.chanlist_len * s->async->cmd.chanlist_len * sizeof(short); // how many - devpriv->dma_runs_to_end = bytes / devpriv->hwdmasize[0]; // how many DMA pages we must fill - devpriv->last_dma_run = bytes % devpriv->hwdmasize[0]; //on last dma transfer must be moved + bytes = s->async->cmd.chanlist_len * s->async->cmd.chanlist_len * sizeof(short); /* how many */ + devpriv->dma_runs_to_end = bytes / devpriv->hwdmasize[0]; /* how many DMA pages we must fill */ + devpriv->last_dma_run = bytes % devpriv->hwdmasize[0]; /* on last dma transfer must be moved */ devpriv->dma_runs_to_end--; if (devpriv->dma_runs_to_end >= 0) bytes = devpriv->hwdmasize[0]; @@ -687,14 +687,14 @@ static int pcl816_ai_cmd(struct comedi_device * dev, struct comedi_subdevice * s switch (cmd->convert_src) { case TRIG_TIMER: devpriv->int816_mode = INT_TYPE_AI1_DMA; - outb(0x32, dev->iobase + PCL816_CONTROL); // Pacer+IRQ+DMA - outb(dmairq, dev->iobase + PCL816_STATUS); // write irq and DMA to card + outb(0x32, dev->iobase + PCL816_CONTROL); /* Pacer+IRQ+DMA */ + outb(dmairq, dev->iobase + PCL816_STATUS); /* write irq and DMA to card */ break; default: devpriv->int816_mode = INT_TYPE_AI3_DMA; - outb(0x34, dev->iobase + PCL816_CONTROL); // Ext trig+IRQ+DMA - outb(dmairq, dev->iobase + PCL816_STATUS); // write irq to card + outb(0x34, dev->iobase + PCL816_CONTROL); /* Ext trig+IRQ+DMA */ + outb(dmairq, dev->iobase + PCL816_STATUS); /* write irq to card */ break; } @@ -708,12 +708,12 @@ static int pcl816_ai_poll(struct comedi_device * dev, struct comedi_subdevice * unsigned int top1, top2, i; if (!devpriv->dma) - return 0; // poll is valid only for DMA transfer + return 0; /* poll is valid only for DMA transfer */ comedi_spin_lock_irqsave(&dev->spinlock, flags); for (i = 0; i < 20; i++) { - top1 = get_dma_residue(devpriv->dma); // where is now DMA + top1 = get_dma_residue(devpriv->dma); /* where is now DMA */ top2 = get_dma_residue(devpriv->dma); if (top1 == top2) break; @@ -723,10 +723,10 @@ static int pcl816_ai_poll(struct comedi_device * dev, struct comedi_subdevice * return 0; } - top1 = devpriv->hwdmasize[0] - top1; // where is now DMA in buffer - top1 >>= 1; // sample position + top1 = devpriv->hwdmasize[0] - top1; /* where is now DMA in buffer */ + top1 >>= 1; /* sample position */ top2 = top1 - devpriv->ai_poll_ptr; - if (top2 < 1) { // no new samples + if (top2 < 1) { /* no new samples */ comedi_spin_unlock_irqrestore(&dev->spinlock, flags); return 0; } @@ -735,7 +735,7 @@ static int pcl816_ai_poll(struct comedi_device * dev, struct comedi_subdevice * (short *) devpriv->dmabuf[devpriv->next_dma_buf], devpriv->ai_poll_ptr, top2); - devpriv->ai_poll_ptr = top1; // new buffer position + 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; @@ -747,14 +747,14 @@ static int pcl816_ai_poll(struct comedi_device * dev, struct comedi_subdevice * */ static int pcl816_ai_cancel(struct comedi_device * dev, struct comedi_subdevice * s) { -// DEBUG(rt_printk("pcl816_ai_cancel()\n");) +/* DEBUG(rt_printk("pcl816_ai_cancel()\n");) */ if (devpriv->irq_blocked > 0) { switch (devpriv->int816_mode) { #ifdef unused case INT_TYPE_AI1_DMA_RTC: case INT_TYPE_AI3_DMA_RTC: - set_rtc_irq_bit(0); // stop RTC + set_rtc_irq_bit(0); /* stop RTC */ del_timer(&devpriv->rtc_irq_timer); #endif case INT_TYPE_AI1_DMA: @@ -776,7 +776,7 @@ static int pcl816_ai_cancel(struct comedi_device * dev, struct comedi_subdevice devpriv->irq_was_now_closed = devpriv->int816_mode; devpriv->int816_mode = 0; devpriv->last_int_sub = s; -// s->busy = 0; +/* s->busy = 0; */ break; } } @@ -795,18 +795,18 @@ static int pcl816_check(unsigned long iobase) outb(0x00, iobase + PCL816_MUX); comedi_udelay(1); if (inb(iobase + PCL816_MUX) != 0x00) - return 1; //there isn't card + return 1; /* there isn't card */ outb(0x55, iobase + PCL816_MUX); comedi_udelay(1); if (inb(iobase + PCL816_MUX) != 0x55) - return 1; //there isn't card + return 1; /* there isn't card */ outb(0x00, iobase + PCL816_MUX); comedi_udelay(1); outb(0x18, iobase + PCL816_CONTROL); comedi_udelay(1); if (inb(iobase + PCL816_CONTROL) != 0x18) - return 1; //there isn't card - return 0; // ok, card exist + return 1; /* there isn't card */ + return 0; /* ok, card exist */ } /* @@ -815,12 +815,12 @@ static int pcl816_check(unsigned long iobase) */ static void pcl816_reset(struct comedi_device * dev) { -// outb (0, dev->iobase + PCL818_DA_LO); // DAC=0V -// outb (0, dev->iobase + PCL818_DA_HI); -// comedi_udelay (1); -// outb (0, dev->iobase + PCL818_DO_HI); // DO=$0000 -// outb (0, dev->iobase + PCL818_DO_LO); -// comedi_udelay (1); +/* outb (0, dev->iobase + PCL818_DA_LO); DAC=0V */ +/* outb (0, dev->iobase + PCL818_DA_HI); */ +/* comedi_udelay (1); */ +/* outb (0, dev->iobase + PCL818_DO_HI); DO=$0000 */ +/* outb (0, dev->iobase + PCL818_DO_LO); */ +/* comedi_udelay (1); */ outb(0, dev->iobase + PCL816_CONTROL); outb(0, dev->iobase + PCL816_MUX); outb(0, dev->iobase + PCL816_CLRINT); @@ -842,8 +842,8 @@ start_pacer(struct comedi_device * dev, int mode, unsigned int divisor1, outb(0xff, dev->iobase + PCL816_CTR0); outb(0x00, dev->iobase + PCL816_CTR0); comedi_udelay(1); - outb(0xb4, dev->iobase + PCL816_CTRCTL); // set counter 2 as mode 3 - outb(0x74, dev->iobase + PCL816_CTRCTL); // set counter 1 as mode 3 + outb(0xb4, dev->iobase + PCL816_CTRCTL); /* set counter 2 as mode 3 */ + outb(0x74, dev->iobase + PCL816_CTRCTL); /* set counter 1 as mode 3 */ comedi_udelay(1); if (mode == 1) { @@ -856,7 +856,7 @@ start_pacer(struct comedi_device * dev, int mode, unsigned int divisor1, } /* clear pending interrupts (just in case) */ -// outb(0, dev->iobase + PCL816_CLRINT); +/* outb(0, dev->iobase + PCL816_CLRINT); */ } /* @@ -871,35 +871,35 @@ check_and_setup_channel_list(struct comedi_device * dev, struct comedi_subdevice unsigned int chansegment[16]; unsigned int i, nowmustbechan, seglen, segpos; - // correct channel and range number check itself comedi/range.c + /* correct channel and range number check itself comedi/range.c */ if (chanlen < 1) { comedi_error(dev, "range/channel list is empty!"); return 0; } if (chanlen > 1) { - chansegment[0] = chanlist[0]; // first channel is everytime ok + chansegment[0] = chanlist[0]; /* first channel is everytime ok */ for (i = 1, seglen = 1; i < chanlen; i++, seglen++) { - // build part of chanlist + /* build part of chanlist */ DEBUG(rt_printk("%d. %d %d\n", i, CR_CHAN(chanlist[i]), CR_RANGE(chanlist[i])); ) if (chanlist[0] == chanlist[i]) - break; // we detect loop, this must by finish + break; /* we detect loop, this must by finish */ nowmustbechan = (CR_CHAN(chansegment[i - 1]) + 1) % chanlen; if (nowmustbechan != CR_CHAN(chanlist[i])) { - // channel list isn't continous :-( + /* channel list isn't continous :-( */ rt_printk ("comedi%d: pcl816: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n", dev->minor, i, CR_CHAN(chanlist[i]), nowmustbechan, CR_CHAN(chanlist[0])); return 0; } - chansegment[i] = chanlist[i]; // well, this is next correct channel in list + chansegment[i] = chanlist[i]; /* well, this is next correct channel in list */ } - for (i = 0, segpos = 0; i < chanlen; i++) { // check whole chanlist + for (i = 0, segpos = 0; i < chanlen; i++) { /* check whole chanlist */ DEBUG(rt_printk("%d %d=%d %d\n", CR_CHAN(chansegment[i % seglen]), CR_RANGE(chansegment[i % seglen]), @@ -915,7 +915,7 @@ check_and_setup_channel_list(struct comedi_device * dev, struct comedi_subdevice CR_CHAN(chanlist[i % seglen]), CR_RANGE(chanlist[i % seglen]), CR_AREF(chansegment[i % seglen])); - return 0; // chan/gain list is strange + return 0; /* chan/gain list is strange */ } } } else { @@ -925,7 +925,7 @@ check_and_setup_channel_list(struct comedi_device * dev, struct comedi_subdevice devpriv->ai_act_chanlist_len = seglen; devpriv->ai_act_chanlist_pos = 0; - for (i = 0; i < seglen; i++) { // store range list to card + for (i = 0; i < seglen; i++) { /* store range list to card */ devpriv->ai_act_chanlist[i] = CR_CHAN(chanlist[i]); outb(CR_CHAN(chanlist[0]) & 0xf, dev->iobase + PCL816_MUX); outb(CR_RANGE(chanlist[0]), dev->iobase + PCL816_RANGE); /* select gain */ @@ -935,7 +935,7 @@ check_and_setup_channel_list(struct comedi_device * dev, struct comedi_subdevice outb(devpriv->ai_act_chanlist[0] | (devpriv->ai_act_chanlist[seglen - 1] << 4), dev->iobase + PCL816_MUX); /* select channel interval to scan */ - return 1; // we can serve this with MUX logic + return 1; /* we can serve this with MUX logic */ } #ifdef unused @@ -981,7 +981,7 @@ static int set_rtc_irq_bit(unsigned char bit) */ static void free_resources(struct comedi_device * dev) { - //rt_printk("free_resource()\n"); + /* rt_printk("free_resource()\n"); */ if (dev->private) { pcl816_ai_cancel(dev, devpriv->sub_ai); pcl816_reset(dev); @@ -1006,7 +1006,7 @@ static void free_resources(struct comedi_device * dev) free_irq(dev->irq, dev); if (dev->iobase) release_region(dev->iobase, this_board->io_range); - //rt_printk("free_resource() end\n"); + /* rt_printk("free_resource() end\n"); */ } /* @@ -1021,7 +1021,7 @@ static int pcl816_attach(struct comedi_device * dev, struct comedi_devconfig * i unsigned long iobase; unsigned int irq, dma; unsigned long pages; - //int i; + /* int i; */ struct comedi_subdevice *s; /* claim our I/O space */ @@ -1084,7 +1084,7 @@ static int pcl816_attach(struct comedi_device * dev, struct comedi_devconfig * i #ifdef unused /* grab RTC for DMA operations */ devpriv->dma_rtc = 0; - if (it->options[2] > 0) { // we want to use DMA + if (it->options[2] > 0) { /* we want to use DMA */ if (RTC_lock == 0) { if (!request_region(RTC_PORT(0), RTC_IO_EXTENT, "pcl816 (RTC)")) @@ -1152,9 +1152,9 @@ static int pcl816_attach(struct comedi_device * dev, struct comedi_devconfig * i devpriv->dmapages[0] = pages; devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]); devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE; - //rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); + /* rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */ - if (devpriv->dma_rtc == 0) { // we must do duble buff :-( + if (devpriv->dma_rtc == 0) { /* we must do duble buff :-( */ devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages); if (!devpriv->dmabuf[1]) { rt_printk @@ -1188,7 +1188,7 @@ static int pcl816_attach(struct comedi_device * dev, struct comedi_devconfig * i s->subdev_flags = SDF_READABLE | SDF_CMD_READ; s->n_chan = this_board->n_aichan; s->subdev_flags |= SDF_DIFF; - //printk (", %dchans DIFF DAC - %d", s->n_chan, i); + /* printk (", %dchans DIFF DAC - %d", s->n_chan, i); */ s->maxdata = this_board->ai_maxdata; s->len_chanlist = this_board->ai_chanlist; s->range_table = this_board->ai_range_type; |