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staging: comedi: addi_apci_1564: remove private data 'mode_select_register' 

This driver currently passes the timer channel as the data[5] element to the
timer (*insn_config) function. This is stored in the private data and use in
the timer (*insn_read) and (*insn_write) functions to read/write the timer.

This is just wrong, comedi passes the channel number in the insn->chanspec.
Use that instead and remove the private data member.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2014-10-24 10:26:05 -07:00 committed by Greg Kroah-Hartman
parent 367ff14edd
commit 7885b070b8
2 changed files with 13 additions and 12 deletions
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24
drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
View File

@ -75,6 +75,7 @@ static int apci1564_timer_config(struct comedi_device *dev,
unsigned int *data)
{
struct apci1564_private *devpriv = dev->private;
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int ul_Command1 = 0;
devpriv->tsk_current = current;
@ -115,19 +116,18 @@ static int apci1564_timer_config(struct comedi_device *dev,
outl(ul_Command1, devpriv->amcc_iobase + APCI1564_TIMER_CTRL_REG);
} else if (data[0] == ADDIDATA_COUNTER) {
devpriv->timer_select_mode = ADDIDATA_COUNTER;
devpriv->mode_select_register = data[5];
/* First Stop The Counter */
ul_Command1 = inl(dev->iobase +
APCI1564_COUNTER_CTRL_REG(data[5] - 1));
APCI1564_COUNTER_CTRL_REG(chan));
ul_Command1 = ul_Command1 & 0xFFFFF9FEUL;
/* Stop The Timer */
outl(ul_Command1, dev->iobase +
APCI1564_COUNTER_CTRL_REG(data[5] - 1));
APCI1564_COUNTER_CTRL_REG(chan));
/* Set the reload value */
outl(data[3], dev->iobase +
APCI1564_COUNTER_RELOAD_REG(data[5] - 1));
APCI1564_COUNTER_RELOAD_REG(chan));
/* Set the mode : */
/* - Disable the hardware */
@ -141,17 +141,17 @@ static int apci1564_timer_config(struct comedi_device *dev,
(ul_Command1 & 0xFFFC19E2UL) | 0x80000UL |
(unsigned int) ((unsigned int) data[4] << 16UL);
outl(ul_Command1, dev->iobase +
APCI1564_COUNTER_CTRL_REG(data[5] - 1));
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(data[5] - 1));
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(data[5] - 1));
APCI1564_COUNTER_CTRL_REG(chan));
} else {
dev_err(dev->class_dev, "Invalid subdevice.\n");
}
@ -170,6 +170,7 @@ static int apci1564_timer_write(struct comedi_device *dev,
unsigned int *data)
{
struct apci1564_private *devpriv = dev->private;
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int ul_Command1 = 0;
if (devpriv->timer_select_mode == ADDIDATA_TIMER) {
@ -189,7 +190,7 @@ static int apci1564_timer_write(struct comedi_device *dev,
} else if (devpriv->timer_select_mode == ADDIDATA_COUNTER) {
ul_Command1 =
inl(dev->iobase +
APCI1564_COUNTER_CTRL_REG(devpriv->mode_select_register - 1));
APCI1564_COUNTER_CTRL_REG(chan));
if (data[1] == 1) {
/* Start the Counter subdevice */
ul_Command1 = (ul_Command1 & 0xFFFFF9FFUL) | 0x1UL;
@ -202,7 +203,7 @@ static int apci1564_timer_write(struct comedi_device *dev,
ul_Command1 = (ul_Command1 & 0xFFFFF9FFUL) | 0x400;
}
outl(ul_Command1, dev->iobase +
APCI1564_COUNTER_CTRL_REG(devpriv->mode_select_register - 1));
APCI1564_COUNTER_CTRL_REG(chan));
} else {
dev_err(dev->class_dev, "Invalid subdevice.\n");
}
@ -218,6 +219,7 @@ static int apci1564_timer_read(struct comedi_device *dev,
unsigned int *data)
{
struct apci1564_private *devpriv = dev->private;
unsigned int chan = CR_CHAN(insn->chanspec);
unsigned int ul_Command1 = 0;
if (devpriv->timer_select_mode == ADDIDATA_TIMER) {
@ -230,10 +232,10 @@ static int apci1564_timer_read(struct comedi_device *dev,
/* Read the Counter Actual Value. */
data[0] =
inl(dev->iobase +
APCI1564_COUNTER_REG(devpriv->mode_select_register - 1));
APCI1564_COUNTER_REG(chan));
ul_Command1 =
inl(dev->iobase +
APCI1564_COUNTER_STATUS_REG(devpriv->mode_select_register - 1));
APCI1564_COUNTER_STATUS_REG(chan));
/* Get the software trigger status */
data[1] = (unsigned char) ((ul_Command1 >> 1) & 1);

1
drivers/staging/comedi/drivers/addi_apci_1564.c
View File

@ -37,7 +37,6 @@ struct apci1564_private {
unsigned int mode2; /* falling-edge/low level channels */
unsigned int ctrl; /* interrupt mode OR (edge) . AND (level) */
unsigned char timer_select_mode;
unsigned char mode_select_register;
struct task_struct *tsk_current;
};