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path: root/drivers/staging/comedi/drivers/adl_pci9118.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci9118.c')
-rw-r--r--drivers/staging/comedi/drivers/adl_pci9118.c161
1 files changed, 79 insertions, 82 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 59a65cbc6db9..f30b84e1987b 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -7,61 +7,62 @@
*
* Author: Michal Dobes <dobes@tesnet.cz>
*
-*/
+ */
+
/*
-Driver: adl_pci9118
-Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR
-Author: Michal Dobes <dobes@tesnet.cz>
-Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg),
- PCI-9118HR (pci9118hr)
-Status: works
-
-This driver supports AI, AO, DI and DO subdevices.
-AI subdevice supports cmd and insn interface,
-other subdevices support only insn interface.
-For AI:
-- If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
-- If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
-- If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
-- It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
- cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
-- If return value of cmdtest is 5 then you've bad channel list
- (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
- ranges).
-
-There are some hardware limitations:
-a) You cann't use mixture of unipolar/bipoar ranges or differencial/single
- ended inputs.
-b) DMA transfers must have the length aligned to two samples (32 bit),
- so there is some problems if cmd->chanlist_len is odd. This driver tries
- bypass this with adding one sample to the end of the every scan and discard
- it on output but this cann't be used if cmd->scan_begin_src=TRIG_FOLLOW
- and is used flag TRIG_WAKE_EOS, then driver switch to interrupt driven mode
- with interrupt after every sample.
-c) If isn't used DMA then you can use only mode where
- cmd->scan_begin_src=TRIG_FOLLOW.
-
-Configuration options:
- [0] - PCI bus of device (optional)
- [1] - PCI slot of device (optional)
- If bus/slot is not specified, then first available PCI
- card will be used.
- [2] - 0= standard 8 DIFF/16 SE channels configuration
- n = external multiplexer connected, 1 <= n <= 256
- [3] - 0=autoselect DMA or EOC interrupts operation
- 1 = disable DMA mode
- 3 = disable DMA and INT, only insn interface will work
- [4] - sample&hold signal - card can generate signal for external S&H board
- 0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic
- 0 != use ADCHN7(pin 23) signal is generated from driver, number say how
- long delay is requested in ns and sign polarity of the hold
- (in this case external multiplexor can serve only 128 channels)
- [5] - 0=stop measure on all hardware errors
- 2 | = ignore ADOR - A/D Overrun status
- 8|=ignore Bover - A/D Burst Mode Overrun status
- 256|=ignore nFull - A/D FIFO Full status
-
-*/
+ * Driver: adl_pci9118
+ * Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR
+ * Author: Michal Dobes <dobes@tesnet.cz>
+ * Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg),
+ * PCI-9118HR (pci9118hr)
+ * Status: works
+ *
+ * This driver supports AI, AO, DI and DO subdevices.
+ * AI subdevice supports cmd and insn interface,
+ * other subdevices support only insn interface.
+ * For AI:
+ * - If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
+ * - If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
+ * - If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
+ * - It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
+ * cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
+ * - If return value of cmdtest is 5 then you've bad channel list
+ * (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
+ * ranges).
+ *
+ * There are some hardware limitations:
+ * a) You cann't use mixture of unipolar/bipoar ranges or differencial/single
+ * ended inputs.
+ * b) DMA transfers must have the length aligned to two samples (32 bit),
+ * so there is some problems if cmd->chanlist_len is odd. This driver tries
+ * bypass this with adding one sample to the end of the every scan and discard
+ * it on output but this cann't be used if cmd->scan_begin_src=TRIG_FOLLOW
+ * and is used flag TRIG_WAKE_EOS, then driver switch to interrupt driven mode
+ * with interrupt after every sample.
+ * c) If isn't used DMA then you can use only mode where
+ * cmd->scan_begin_src=TRIG_FOLLOW.
+ *
+ * Configuration options:
+ * [0] - PCI bus of device (optional)
+ * [1] - PCI slot of device (optional)
+ * If bus/slot is not specified, then first available PCI
+ * card will be used.
+ * [2] - 0= standard 8 DIFF/16 SE channels configuration
+ * n = external multiplexer connected, 1 <= n <= 256
+ * [3] - 0=autoselect DMA or EOC interrupts operation
+ * 1 = disable DMA mode
+ * 3 = disable DMA and INT, only insn interface will work
+ * [4] - sample&hold signal - card can generate signal for external S&H board
+ * 0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic
+ * 0 != use ADCHN7(pin 23) signal is generated from driver, number say how
+ * long delay is requested in ns and sign polarity of the hold
+ * (in this case external multiplexor can serve only 128 channels)
+ * [5] - 0=stop measure on all hardware errors
+ * 2 | = ignore ADOR - A/D Overrun status
+ * 8|=ignore Bover - A/D Burst Mode Overrun status
+ * 256|=ignore nFull - A/D FIFO Full status
+ *
+ */
/*
* FIXME
@@ -346,7 +347,7 @@ struct pci9118_private {
* on external start
*/
unsigned short ao_data[2]; /* data output buffer */
- char dma_doublebuf; /* we can use double buffering */
+ char dma_doublebuf; /* use double buffering */
unsigned int dma_actbuf; /* which buffer is used now */
unsigned short *dmabuf_virt[2]; /*
* pointers to begin of
@@ -394,12 +395,12 @@ static int check_channel_list(struct comedi_device *dev,
/* correct channel and range number check itself comedi/range.c */
if (n_chan < 1) {
- comedi_error(dev, "range/channel list is empty!");
+ dev_err(dev->class_dev, "range/channel list is empty!\n");
return 0;
}
if ((frontadd + n_chan + backadd) > s->len_chanlist) {
- comedi_error(dev,
- "range/channel list is too long for actual configuration!\n");
+ dev_err(dev->class_dev,
+ "range/channel list is too long for actual configuration!\n");
return 0;
}
@@ -411,23 +412,20 @@ static int check_channel_list(struct comedi_device *dev,
for (i = 1; i < n_chan; i++) { /* check S.E/diff */
if ((CR_AREF(chanlist[i]) == AREF_DIFF) !=
(differencial)) {
- comedi_error(dev,
- "Differencial and single ended "
- "inputs can't be mixtured!");
+ dev_err(dev->class_dev,
+ "Differential and single ended inputs can't be mixed!\n");
return 0;
}
if ((CR_RANGE(chanlist[i]) < PCI9118_BIPOLAR_RANGES) !=
(bipolar)) {
- comedi_error(dev,
- "Bipolar and unipolar ranges "
- "can't be mixtured!");
+ dev_err(dev->class_dev,
+ "Bipolar and unipolar ranges can't be mixed!\n");
return 0;
}
if (!devpriv->usemux && differencial &&
(CR_CHAN(chanlist[i]) >= this_board->n_aichand)) {
- comedi_error(dev,
- "If AREF_DIFF is used then is "
- "available only first 8 channels!");
+ dev_err(dev->class_dev,
+ "AREF_DIFF is only available for the first 8 channels!\n");
return 0;
}
}
@@ -864,20 +862,21 @@ static char pci9118_decode_error_status(struct comedi_device *dev,
struct pci9118_private *devpriv = dev->private;
if (m & 0x100) {
- comedi_error(dev, "A/D FIFO Full status (Fatal Error!)");
+ dev_err(dev->class_dev,
+ "A/D FIFO Full status (Fatal Error!)\n");
devpriv->ai_maskerr &= ~0x100L;
}
if (m & 0x008) {
- comedi_error(dev,
- "A/D Burst Mode Overrun Status (Fatal Error!)");
+ dev_err(dev->class_dev,
+ "A/D Burst Mode Overrun Status (Fatal Error!)\n");
devpriv->ai_maskerr &= ~0x008L;
}
if (m & 0x004) {
- comedi_error(dev, "A/D Over Speed Status (Warning!)");
+ dev_err(dev->class_dev, "A/D Over Speed Status (Warning!)\n");
devpriv->ai_maskerr &= ~0x004L;
}
if (m & 0x002) {
- comedi_error(dev, "A/D Overrun Status (Fatal Error!)");
+ dev_err(dev->class_dev, "A/D Overrun Status (Fatal Error!)\n");
devpriv->ai_maskerr &= ~0x002L;
}
if (m & devpriv->ai_maskharderr) {
@@ -966,14 +965,14 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
unsigned int next_dma_buf, samplesinbuf, sampls, m;
if (int_amcc & MASTER_ABORT_INT) {
- comedi_error(dev, "AMCC IRQ - MASTER DMA ABORT!");
+ dev_err(dev->class_dev, "AMCC IRQ - MASTER DMA ABORT!\n");
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
cfc_handle_events(dev, s);
return;
}
if (int_amcc & TARGET_ABORT_INT) {
- comedi_error(dev, "AMCC IRQ - TARGET DMA ABORT!");
+ dev_err(dev->class_dev, "AMCC IRQ - TARGET DMA ABORT!\n");
s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
cfc_handle_events(dev, s);
return;
@@ -1427,17 +1426,16 @@ static int pci9118_ai_docmd_sampl(struct comedi_device *dev,
devpriv->AdControlReg |= AdControl_TmrTr;
break;
case 2:
- comedi_error(dev, "pci9118_ai_docmd_sampl() mode 2 bug!\n");
+ dev_err(dev->class_dev, "%s mode 2 bug!\n", __func__);
return -EIO;
case 3:
devpriv->AdControlReg |= AdControl_ExtM;
break;
case 4:
- comedi_error(dev, "pci9118_ai_docmd_sampl() mode 4 bug!\n");
+ dev_err(dev->class_dev, "%s mode 4 bug!\n", __func__);
return -EIO;
default:
- comedi_error(dev,
- "pci9118_ai_docmd_sampl() mode number bug!\n");
+ dev_err(dev->class_dev, "%s mode number bug!\n", __func__);
return -EIO;
}
@@ -1509,7 +1507,7 @@ static int pci9118_ai_docmd_dma(struct comedi_device *dev,
devpriv->AdFunctionReg |= AdFunction_Start;
break;
default:
- comedi_error(dev, "pci9118_ai_docmd_dma() mode number bug!\n");
+ dev_err(dev->class_dev, "%s mode number bug!\n", __func__);
return -EIO;
}
@@ -1677,9 +1675,8 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
(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!");
+ dev_err(dev->class_dev,
+ "cmd->scan_begin_src=TRIG_TIMER works only with bus mastering!\n");
return -EIO;
}
generated by cgit (git 2.34.1) at 2024-06-08 02:49:56 +0000