diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/pcl816.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl816.c | 109 |
1 files changed, 46 insertions, 63 deletions
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index a353d1b155bb..c00a71f538ef 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -1,36 +1,33 @@ /* - comedi/drivers/pcl816.c - - Author: Juan Grigera <juan@grigera.com.ar> - based on pcl818 by Michal Dobes <dobes@tesnet.cz> and bits of pcl812 + * pcl816.c + * Comedi driver for Advantech PCL-816 cards + * + * Author: Juan Grigera <juan@grigera.com.ar> + * based on pcl818 by Michal Dobes <dobes@tesnet.cz> and bits of pcl812 + */ - hardware driver for Advantech cards: - card: PCL-816, PCL814B - driver: pcl816 -*/ /* -Driver: pcl816 -Description: Advantech PCL-816 cards, PCL-814 -Author: Juan Grigera <juan@grigera.com.ar> -Devices: [Advantech] PCL-816 (pcl816), PCL-814B (pcl814b) -Status: works -Updated: Tue, 2 Apr 2002 23:15:21 -0800 - -PCL 816 and 814B have 16 SE/DIFF ADCs, 16 DACs, 16 DI and 16 DO. -Differences are at resolution (16 vs 12 bits). - -The driver support AI command mode, other subdevices not written. - -Analog output and digital input and output are not supported. - -Configuration Options: - [0] - IO Base - [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) - [2] - DMA (0=disable, 1, 3) - [3] - 0, 10=10MHz clock for 8254 - 1= 1MHz clock for 8254 - -*/ + * Driver: pcl816 + * Description: Advantech PCL-816 cards, PCL-814 + * Devices: [Advantech] PCL-816 (pcl816), PCL-814B (pcl814b) + * Author: Juan Grigera <juan@grigera.com.ar> + * Status: works + * Updated: Tue, 2 Apr 2002 23:15:21 -0800 + * + * PCL 816 and 814B have 16 SE/DIFF ADCs, 16 DACs, 16 DI and 16 DO. + * Differences are at resolution (16 vs 12 bits). + * + * The driver support AI command mode, other subdevices not written. + * + * Analog output and digital input and output are not supported. + * + * Configuration Options: + * [0] - IO Base + * [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) + * [2] - DMA (0=disable, 1, 3) + * [3] - 0, 10=10MHz clock for 8254 + * 1= 1MHz clock for 8254 + */ #include <linux/module.h> #include <linux/gfp.h> @@ -56,25 +53,20 @@ Configuration Options: #define PCL816_MUX_REG 0x0b #define PCL816_MUX_SCAN(_first, _last) (((_last) << 4) | (_first)) #define PCL816_CTRL_REG 0x0c -#define PCL816_CTRL_DISABLE_TRIG (0 << 0) -#define PCL816_CTRL_SOFT_TRIG (1 << 0) -#define PCL816_CTRL_PACER_TRIG (1 << 1) -#define PCL816_CTRL_EXT_TRIG (1 << 2) -#define PCL816_CTRL_POE (1 << 3) -#define PCL816_CTRL_DMAEN (1 << 4) -#define PCL816_CTRL_INTEN (1 << 5) -#define PCL816_CTRL_DMASRC_SLOT0 (0 << 6) -#define PCL816_CTRL_DMASRC_SLOT1 (1 << 6) -#define PCL816_CTRL_DMASRC_SLOT2 (2 << 6) +#define PCL816_CTRL_SOFT_TRIG BIT(0) +#define PCL816_CTRL_PACER_TRIG BIT(1) +#define PCL816_CTRL_EXT_TRIG BIT(2) +#define PCL816_CTRL_POE BIT(3) +#define PCL816_CTRL_DMAEN BIT(4) +#define PCL816_CTRL_INTEN BIT(5) +#define PCL816_CTRL_DMASRC_SLOT(x) (((x) & 0x3) << 6) #define PCL816_STATUS_REG 0x0d #define PCL816_STATUS_NEXT_CHAN_MASK (0xf << 0) -#define PCL816_STATUS_INTSRC_MASK (3 << 4) -#define PCL816_STATUS_INTSRC_SLOT0 (0 << 4) -#define PCL816_STATUS_INTSRC_SLOT1 (1 << 4) -#define PCL816_STATUS_INTSRC_SLOT2 (2 << 4) -#define PCL816_STATUS_INTSRC_DMA (3 << 4) -#define PCL816_STATUS_INTACT (1 << 6) -#define PCL816_STATUS_DRDY (1 << 7) +#define PCL816_STATUS_INTSRC_SLOT(x) (((x) & 0x3) << 4) +#define PCL816_STATUS_INTSRC_DMA PCL816_STATUS_INTSRC_SLOT(3) +#define PCL816_STATUS_INTSRC_MASK PCL816_STATUS_INTSRC_SLOT(3) +#define PCL816_STATUS_INTACT BIT(6) +#define PCL816_STATUS_DRDY BIT(7) #define MAGIC_DMA_WORD 0x5a5a @@ -94,7 +86,6 @@ static const struct comedi_lrange range_pcl816 = { struct pcl816_board { const char *name; int ai_maxdata; - int ao_maxdata; int ai_chanlist; }; @@ -102,12 +93,10 @@ static const struct pcl816_board boardtypes[] = { { .name = "pcl816", .ai_maxdata = 0xffff, - .ao_maxdata = 0xffff, .ai_chanlist = 1024, }, { .name = "pcl814b", .ai_maxdata = 0x3fff, - .ao_maxdata = 0x3fff, .ai_chanlist = 1024, }, }; @@ -443,7 +432,8 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) comedi_8254_update_divisors(dev->pacer); comedi_8254_pacer_enable(dev->pacer, 1, 2, true); - ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN | PCL816_CTRL_DMASRC_SLOT0; + ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN | + PCL816_CTRL_DMASRC_SLOT(0); if (cmd->convert_src == TRIG_TIMER) ctrl |= PCL816_CTRL_PACER_TRIG; else /* TRIG_EXT */ @@ -497,7 +487,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev, if (!devpriv->ai_cmd_running) return 0; - outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG); + outb(0, dev->iobase + PCL816_CTRL_REG); pcl816_ai_clear_eoc(dev); comedi_8254_pacer_enable(dev->pacer, 1, 2, false); @@ -533,7 +523,7 @@ static int pcl816_ai_insn_read(struct comedi_device *dev, data[i] = pcl816_ai_get_sample(dev, s); } - outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG); + outb(0, dev->iobase + PCL816_CTRL_REG); pcl816_ai_clear_eoc(dev); return ret ? ret : insn->n; @@ -567,7 +557,7 @@ static int pcl816_do_insn_bits(struct comedi_device *dev, static void pcl816_reset(struct comedi_device *dev) { - outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG); + outb(0, dev->iobase + PCL816_CTRL_REG); pcl816_ai_set_chan_range(dev, 0, 0); pcl816_ai_clear_eoc(dev); @@ -652,16 +642,9 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it) s->cancel = pcl816_ai_cancel; } - /* Analog OUtput subdevice */ - s = &dev->subdevices[2]; + /* Piggyback Slot1 subdevice */ + s = &dev->subdevices[1]; s->type = COMEDI_SUBD_UNUSED; -#if 0 - subdevs[1] = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE | SDF_GROUND; - s->n_chan = 1; - s->maxdata = board->ao_maxdata; - s->range_table = &range_pcl816; -#endif /* Digital Input subdevice */ s = &dev->subdevices[2]; |