diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c new file mode 100644 index 000000000..fa99c8ca4 --- /dev/null +++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c @@ -0,0 +1,204 @@ +/* Digital Input IRQ Function Selection */ +#define APCI1564_DI_INT_OR (0 << 1) +#define APCI1564_DI_INT_AND (1 << 1) + +/* Digital Input Interrupt Enable Disable. */ +#define APCI1564_DI_INT_ENABLE 0x4 +#define APCI1564_DI_INT_DISABLE 0xfffffffb + +/* Digital Output Interrupt Enable Disable. */ +#define APCI1564_DO_VCC_INT_ENABLE 0x1 +#define APCI1564_DO_VCC_INT_DISABLE 0xfffffffe +#define APCI1564_DO_CC_INT_ENABLE 0x2 +#define APCI1564_DO_CC_INT_DISABLE 0xfffffffd + +/* TIMER COUNTER WATCHDOG DEFINES */ +#define ADDIDATA_TIMER 0 +#define ADDIDATA_COUNTER 1 +#define ADDIDATA_WATCHDOG 2 + +static int apci1564_timer_insn_config(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + unsigned int ctrl; + + devpriv->tsk_current = current; + + /* First Stop The Timer */ + ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG); + ctrl &= 0xfffff9fe; + /* Stop The Timer */ + outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG); + + if (data[1] == 1) { + /* Enable timer int & disable all the other int sources */ + outl(0x02, devpriv->timer + ADDI_TCW_CTRL_REG); + outl(0x0, dev->iobase + APCI1564_DI_IRQ_REG); + outl(0x0, dev->iobase + APCI1564_DO_IRQ_REG); + outl(0x0, dev->iobase + APCI1564_WDOG_IRQ_REG); + if (devpriv->counters) { + unsigned long iobase; + + iobase = devpriv->counters + ADDI_TCW_IRQ_REG; + outl(0x0, iobase + APCI1564_COUNTER(0)); + outl(0x0, iobase + APCI1564_COUNTER(1)); + outl(0x0, iobase + APCI1564_COUNTER(2)); + } + } else { + /* disable Timer interrupt */ + outl(0x0, devpriv->timer + ADDI_TCW_CTRL_REG); + } + + /* Loading Timebase */ + outl(data[2], devpriv->timer + ADDI_TCW_TIMEBASE_REG); + + /* Loading the Reload value */ + outl(data[3], devpriv->timer + ADDI_TCW_RELOAD_REG); + + ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG); + ctrl &= 0xfff719e2; + ctrl |= (2 << 13) | 0x10; + /* mode 2 */ + outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG); + + return insn->n; +} + +static int apci1564_timer_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + unsigned int ctrl; + + ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG); + switch (data[1]) { + case 0: /* Stop The Timer */ + ctrl &= 0xfffff9fe; + break; + case 1: /* Enable the Timer */ + ctrl &= 0xfffff9ff; + ctrl |= 0x1; + break; + } + outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG); + + return insn->n; +} + +static int apci1564_timer_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + + /* Stores the status of the Timer */ + data[0] = inl(devpriv->timer + ADDI_TCW_STATUS_REG) & 0x1; + + /* Stores the Actual value of the Timer */ + data[1] = inl(devpriv->timer + ADDI_TCW_VAL_REG); + + return insn->n; +} + +static int apci1564_counter_insn_config(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan); + unsigned int ctrl; + + devpriv->tsk_current = current; + + /* First Stop The Counter */ + ctrl = inl(iobase + ADDI_TCW_CTRL_REG); + ctrl &= 0xfffff9fe; + /* Stop The Timer */ + outl(ctrl, iobase + ADDI_TCW_CTRL_REG); + + /* Set the reload value */ + outl(data[3], iobase + ADDI_TCW_RELOAD_REG); + + /* Set the mode : */ + /* - Disable the hardware */ + /* - Disable the counter mode */ + /* - Disable the warning */ + /* - Disable the reset */ + /* - Disable the timer mode */ + /* - Enable the counter mode */ + + ctrl &= 0xfffc19e2; + ctrl |= 0x80000 | (data[4] << 16); + outl(ctrl, iobase + ADDI_TCW_CTRL_REG); + + /* Enable or Disable Interrupt */ + ctrl &= 0xfffff9fd; + ctrl |= (data[1] << 1); + outl(ctrl, iobase + ADDI_TCW_CTRL_REG); + + /* Set the Up/Down selection */ + ctrl &= 0xfffbf9ff; + ctrl |= (data[6] << 18); + outl(ctrl, iobase + ADDI_TCW_CTRL_REG); + + return insn->n; +} + +static int apci1564_counter_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan); + unsigned int ctrl; + + ctrl = inl(iobase + ADDI_TCW_CTRL_REG); + switch (data[1]) { + case 0: /* Stops the Counter subdevice */ + ctrl = 0; + break; + case 1: /* Start the Counter subdevice */ + ctrl &= 0xfffff9ff; + ctrl |= 0x1; + break; + case 2: /* Clears the Counter subdevice */ + ctrl &= 0xfffff9ff; + ctrl |= 0x400; + break; + } + outl(ctrl, iobase + ADDI_TCW_CTRL_REG); + + return insn->n; +} + +static int apci1564_counter_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct apci1564_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan); + unsigned int status; + + /* Read the Counter Actual Value. */ + data[0] = inl(iobase + ADDI_TCW_VAL_REG); + + status = inl(iobase + ADDI_TCW_STATUS_REG); + data[1] = (status >> 1) & 1; /* software trigger status */ + data[2] = (status >> 2) & 1; /* hardware trigger status */ + data[3] = (status >> 3) & 1; /* software clear status */ + data[4] = (status >> 0) & 1; /* overflow status */ + + return insn->n; +} |