[PATCH 03/15] staging: comedi: addi_apci_1564: store PCI BAR 1 base address in private data
H Hartley Sweeten
hsweeten at visionengravers.com
Mon Nov 10 23:20:09 UTC 2014
According to ADDI-DATA, only the PLD Revision 2.x versions of the APCI-1564
have the 3 counters. The base address for these counters is found in PCI BAR 1.
For aesthetics, save this base address in the private data. The dev->iobase
can then be used for the main registers of the board.
Signed-off-by: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
.../comedi/drivers/addi-data/hwdrv_apci1564.c | 57 ++++++++++------------
drivers/staging/comedi/drivers/addi_apci_1564.c | 25 +++++-----
2 files changed, 41 insertions(+), 41 deletions(-)
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
index ad9949c..37733ae 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
@@ -47,7 +47,7 @@
#define APCI1564_TIMER_WARN_TIMEBASE_REG 0x64
/*
- * dev->iobase Register Map
+ * devpriv->counters Register Map
*/
#define APCI1564_COUNTER_REG(x) (0x00 + ((x) * 0x20))
#define APCI1564_COUNTER_RELOAD_REG(x) (0x04 + ((x) * 0x20))
@@ -93,12 +93,12 @@ static int apci1564_timer_config(struct comedi_device *dev,
outl(0x0, devpriv->amcc_iobase + APCI1564_DI_IRQ_REG);
outl(0x0, devpriv->amcc_iobase + APCI1564_DO_IRQ_REG);
outl(0x0, devpriv->amcc_iobase + APCI1564_WDOG_IRQ_REG);
- outl(0x0, dev->iobase +
- APCI1564_COUNTER_IRQ_REG(0));
- outl(0x0, dev->iobase +
- APCI1564_COUNTER_IRQ_REG(1));
- outl(0x0, dev->iobase +
- APCI1564_COUNTER_IRQ_REG(2));
+ outl(0x0,
+ devpriv->counters + APCI1564_COUNTER_IRQ_REG(0));
+ outl(0x0,
+ devpriv->counters + APCI1564_COUNTER_IRQ_REG(1));
+ outl(0x0,
+ devpriv->counters + APCI1564_COUNTER_IRQ_REG(2));
} else {
/* disable Timer interrupt */
outl(0x0, devpriv->amcc_iobase + APCI1564_TIMER_CTRL_REG);
@@ -118,16 +118,16 @@ static int apci1564_timer_config(struct comedi_device *dev,
devpriv->timer_select_mode = ADDIDATA_COUNTER;
/* First Stop The Counter */
- ul_Command1 = inl(dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ ul_Command1 = inl(devpriv->counters +
+ APCI1564_COUNTER_CTRL_REG(chan));
ul_Command1 = ul_Command1 & 0xFFFFF9FEUL;
/* Stop The Timer */
- outl(ul_Command1, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ul_Command1,
+ devpriv->counters + APCI1564_COUNTER_CTRL_REG(chan));
/* Set the reload value */
- outl(data[3], dev->iobase +
- APCI1564_COUNTER_RELOAD_REG(chan));
+ outl(data[3],
+ devpriv->counters + APCI1564_COUNTER_RELOAD_REG(chan));
/* Set the mode : */
/* - Disable the hardware */
@@ -140,18 +140,18 @@ static int apci1564_timer_config(struct comedi_device *dev,
ul_Command1 =
(ul_Command1 & 0xFFFC19E2UL) | 0x80000UL |
(unsigned int) ((unsigned int) data[4] << 16UL);
- outl(ul_Command1, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ul_Command1,
+ devpriv->counters + APCI1564_COUNTER_CTRL_REG(chan));
/* Enable or Disable Interrupt */
ul_Command1 = (ul_Command1 & 0xFFFFF9FD) | (data[1] << 1);
- outl(ul_Command1, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ul_Command1,
+ devpriv->counters + APCI1564_COUNTER_CTRL_REG(chan));
/* Set the Up/Down selection */
ul_Command1 = (ul_Command1 & 0xFFFBF9FFUL) | (data[6] << 18);
- outl(ul_Command1, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ul_Command1,
+ devpriv->counters + APCI1564_COUNTER_CTRL_REG(chan));
} else {
dev_err(dev->class_dev, "Invalid subdevice.\n");
}
@@ -188,9 +188,8 @@ static int apci1564_timer_write(struct comedi_device *dev,
outl(ul_Command1, devpriv->amcc_iobase + APCI1564_TIMER_CTRL_REG);
}
} else if (devpriv->timer_select_mode == ADDIDATA_COUNTER) {
- ul_Command1 =
- inl(dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ ul_Command1 = inl(devpriv->counters +
+ APCI1564_COUNTER_CTRL_REG(chan));
if (data[1] == 1) {
/* Start the Counter subdevice */
ul_Command1 = (ul_Command1 & 0xFFFFF9FFUL) | 0x1UL;
@@ -202,8 +201,8 @@ static int apci1564_timer_write(struct comedi_device *dev,
/* Clears the Counter subdevice */
ul_Command1 = (ul_Command1 & 0xFFFFF9FFUL) | 0x400;
}
- outl(ul_Command1, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ul_Command1,
+ devpriv->counters + APCI1564_COUNTER_CTRL_REG(chan));
} else {
dev_err(dev->class_dev, "Invalid subdevice.\n");
}
@@ -230,12 +229,10 @@ static int apci1564_timer_read(struct comedi_device *dev,
data[1] = inl(devpriv->amcc_iobase + APCI1564_TIMER_REG);
} else if (devpriv->timer_select_mode == ADDIDATA_COUNTER) {
/* Read the Counter Actual Value. */
- data[0] =
- inl(dev->iobase +
- APCI1564_COUNTER_REG(chan));
- ul_Command1 =
- inl(dev->iobase +
- APCI1564_COUNTER_STATUS_REG(chan));
+ data[0] = inl(devpriv->counters +
+ APCI1564_COUNTER_REG(chan));
+ ul_Command1 = inl(devpriv->counters +
+ APCI1564_COUNTER_STATUS_REG(chan));
/* Get the software trigger status */
data[1] = (unsigned char) ((ul_Command1 >> 1) & 1);
diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c
index 467e278..ecdbc88 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1564.c
@@ -31,6 +31,7 @@
#include "addi_watchdog.h"
struct apci1564_private {
+ unsigned long counters; /* base address of 32-bit counters */
unsigned int amcc_iobase; /* base of AMCC I/O registers */
unsigned int mode1; /* riding-edge/high level channels */
unsigned int mode2; /* falling-edge/low level channels */
@@ -63,9 +64,9 @@ static int apci1564_reset(struct comedi_device *dev)
outl(0x0, devpriv->amcc_iobase + APCI1564_TIMER_RELOAD_REG);
/* Reset the counter registers */
- outl(0x0, dev->iobase + APCI1564_COUNTER_CTRL_REG(0));
- outl(0x0, dev->iobase + APCI1564_COUNTER_CTRL_REG(1));
- outl(0x0, dev->iobase + APCI1564_COUNTER_CTRL_REG(2));
+ outl(0x0, devpriv->counters + APCI1564_COUNTER_CTRL_REG(0));
+ outl(0x0, devpriv->counters + APCI1564_COUNTER_CTRL_REG(1));
+ outl(0x0, devpriv->counters + APCI1564_COUNTER_CTRL_REG(2));
return 0;
}
@@ -108,20 +109,21 @@ static irqreturn_t apci1564_interrupt(int irq, void *d)
}
for (chan = 0; chan < 4; chan++) {
- status = inl(dev->iobase + APCI1564_COUNTER_IRQ_REG(chan));
+ status = inl(devpriv->counters +
+ APCI1564_COUNTER_IRQ_REG(chan));
if (status & 0x01) {
/* Disable Counter Interrupt */
- ctrl = inl(dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
- outl(0x0, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ ctrl = inl(devpriv->counters +
+ APCI1564_COUNTER_CTRL_REG(chan));
+ outl(0x0, devpriv->counters +
+ APCI1564_COUNTER_CTRL_REG(chan));
/* Send a signal to from kernel to user space */
send_sig(SIGIO, devpriv->tsk_current, 0);
/* Enable Counter Interrupt */
- outl(ctrl, dev->iobase +
- APCI1564_COUNTER_CTRL_REG(chan));
+ outl(ctrl, devpriv->counters +
+ APCI1564_COUNTER_CTRL_REG(chan));
}
}
@@ -369,8 +371,9 @@ static int apci1564_auto_attach(struct comedi_device *dev,
if (ret)
return ret;
- dev->iobase = pci_resource_start(pcidev, 1);
+ /* PLD Revision 2.x I/O Mapping */
devpriv->amcc_iobase = pci_resource_start(pcidev, 0);
+ devpriv->counters = pci_resource_start(pcidev, 1);
apci1564_reset(dev);
--
2.0.3
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