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authorGreg Kroah-Hartman <gregkh@suse.de>2008-11-19 10:21:17 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-06 13:52:24 -0800
commit1be0e3ed76188c9dd879f421953f5cbf5d9cee58 (patch)
treecd012ba14cdfe855d0e32d8e891fd028d1132b91 /drivers/staging
parent246c541822cd6251aa38862f8f13412e5147a1ad (diff)
Staging: comedi: fix checkpatch.pl issues in comedi_test.c
This fixes almost all checkpatch.pl issues with the comedi_test.c file. Hint, volatile doesn't do what you think it does, it has been removed from the structure... Cc: Joachim Wuttke <Joachim.Wuttke@icn.siemens.de> Cc: David Schleef <ds@schleef.org> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/comedi/drivers/comedi_test.c173
1 files changed, 87 insertions, 86 deletions
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index 356a9e9c3ab..b8911374dcd 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -68,11 +68,11 @@ typedef struct waveform_board_struct {
static const waveform_board waveform_boards[] = {
{
- name: "comedi_test",
- ai_chans:N_CHANS,
- ai_bits: 16,
- have_dio:0,
- },
+ .name = "comedi_test",
+ .ai_chans = N_CHANS,
+ .ai_bits = 16,
+ .have_dio = 0,
+ },
};
#define thisboard ((const waveform_board *)dev->board_ptr)
@@ -80,53 +80,54 @@ static const waveform_board waveform_boards[] = {
/* Data unique to this driver */
typedef struct {
struct timer_list timer;
- struct timeval last; // time at which last timer interrupt occured
- unsigned int uvolt_amplitude; // waveform amplitude in microvolts
- unsigned long usec_period; // waveform period in microseconds
- volatile unsigned long usec_current; // current time (modulo waveform period)
- volatile unsigned long usec_remainder; // usec since last scan;
- volatile unsigned long ai_count; // number of conversions remaining
- unsigned int scan_period; // scan period in usec
- unsigned int convert_period; // conversion period in usec
- volatile unsigned timer_running:1;
- volatile lsampl_t ao_loopbacks[N_CHANS];
+ struct timeval last; /* time at which last timer interrupt occured */
+ unsigned int uvolt_amplitude; /* waveform amplitude in microvolts */
+ unsigned long usec_period; /* waveform period in microseconds */
+ unsigned long usec_current; /* current time (modulo waveform period) */
+ unsigned long usec_remainder; /* usec since last scan; */
+ unsigned long ai_count; /* number of conversions remaining */
+ unsigned int scan_period; /* scan period in usec */
+ unsigned int convert_period; /* conversion period in usec */
+ unsigned timer_running:1;
+ lsampl_t ao_loopbacks[N_CHANS];
} waveform_private;
#define devpriv ((waveform_private *)dev->private)
-static int waveform_attach(comedi_device * dev, comedi_devconfig * it);
-static int waveform_detach(comedi_device * dev);
+static int waveform_attach(comedi_device *dev, comedi_devconfig *it);
+static int waveform_detach(comedi_device *dev);
static comedi_driver driver_waveform = {
- driver_name:"comedi_test",
- module:THIS_MODULE,
- attach:waveform_attach,
- detach:waveform_detach,
- board_name:&waveform_boards[0].name,
- offset:sizeof(waveform_board),
- num_names:sizeof(waveform_boards) / sizeof(waveform_board),
+ .driver_name = "comedi_test",
+ .module = THIS_MODULE,
+ .attach = waveform_attach,
+ .detach = waveform_detach,
+ .board_name = &waveform_boards[0].name,
+ .offset = sizeof(waveform_board),
+ .num_names = sizeof(waveform_boards) / sizeof(waveform_board),
};
COMEDI_INITCLEANUP(driver_waveform);
-static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
- comedi_cmd * cmd);
-static int waveform_ai_cmd(comedi_device * dev, comedi_subdevice * s);
-static int waveform_ai_cancel(comedi_device * dev, comedi_subdevice * s);
-static int waveform_ai_insn_read(comedi_device * dev, comedi_subdevice * s,
- comedi_insn * insn, lsampl_t * data);
-static int waveform_ao_insn_write(comedi_device * dev, comedi_subdevice * s,
- comedi_insn * insn, lsampl_t * data);
-static sampl_t fake_sawtooth(comedi_device * dev, unsigned int range,
- unsigned long current_time);
-static sampl_t fake_squarewave(comedi_device * dev, unsigned int range,
- unsigned long current_time);
-static sampl_t fake_flatline(comedi_device * dev, unsigned int range,
- unsigned long current_time);
-static sampl_t fake_waveform(comedi_device * dev, unsigned int channel,
- unsigned int range, unsigned long current_time);
-
-static const int nano_per_micro = 1000; // 1000 nanosec in a microsec
-
-// fake analog input ranges
+static int waveform_ai_cmdtest(comedi_device *dev, comedi_subdevice *s,
+ comedi_cmd *cmd);
+static int waveform_ai_cmd(comedi_device *dev, comedi_subdevice *s);
+static int waveform_ai_cancel(comedi_device *dev, comedi_subdevice *s);
+static int waveform_ai_insn_read(comedi_device *dev, comedi_subdevice *s,
+ comedi_insn *insn, lsampl_t *data);
+static int waveform_ao_insn_write(comedi_device *dev, comedi_subdevice *s,
+ comedi_insn *insn, lsampl_t *data);
+static sampl_t fake_sawtooth(comedi_device *dev, unsigned int range,
+ unsigned long current_time);
+static sampl_t fake_squarewave(comedi_device *dev, unsigned int range,
+ unsigned long current_time);
+static sampl_t fake_flatline(comedi_device *dev, unsigned int range,
+ unsigned long current_time);
+static sampl_t fake_waveform(comedi_device *dev, unsigned int channel,
+ unsigned int range, unsigned long current_time);
+
+/* 1000 nanosec in a microsec */
+static const int nano_per_micro = 1000;
+
+/* fake analog input ranges */
static const comedi_lrange waveform_ai_ranges = {
2,
{
@@ -146,7 +147,7 @@ static void waveform_ai_interrupt(unsigned long arg)
comedi_async *async = dev->read_subdev->async;
comedi_cmd *cmd = &async->cmd;
unsigned int i, j;
- // all times in microsec
+ /* all times in microsec */
unsigned long elapsed_time;
unsigned int num_scans;
struct timeval now;
@@ -191,30 +192,27 @@ static void waveform_ai_interrupt(unsigned long arg)
comedi_event(dev, dev->read_subdev);
}
-static int waveform_attach(comedi_device * dev, comedi_devconfig * it)
+static int waveform_attach(comedi_device *dev, comedi_devconfig *it)
{
comedi_subdevice *s;
int amplitude = it->options[0];
int period = it->options[1];
-
- printk("comedi%d: comedi_test: ", dev->minor);
+ int i;
dev->board_name = thisboard->name;
if (alloc_private(dev, sizeof(waveform_private)) < 0)
return -ENOMEM;
- // set default amplitude and period
+ /* set default amplitude and period */
if (amplitude <= 0)
- amplitude = 1000000; // 1 volt
+ amplitude = 1000000; /* 1 volt */
if (period <= 0)
- period = 100000; // 0.1 sec
+ period = 100000; /* 0.1 sec */
devpriv->uvolt_amplitude = amplitude;
devpriv->usec_period = period;
- printk("%i microvolt, %li microsecond waveform ",
- devpriv->uvolt_amplitude, devpriv->usec_period);
dev->n_subdevices = 2;
if (alloc_subdevices(dev, dev->n_subdevices) < 0)
return -ENOMEM;
@@ -246,35 +244,33 @@ static int waveform_attach(comedi_device * dev, comedi_devconfig * it)
s->do_cmd = 0;
s->do_cmdtest = 0;
s->cancel = 0;
- {
- /* Our default loopback value is just a 0V flatline */
- int i;
- for (i = 0; i < s->n_chan; i++)
- devpriv->ao_loopbacks[i] = s->maxdata / 2;
- }
+
+ /* Our default loopback value is just a 0V flatline */
+ for (i = 0; i < s->n_chan; i++)
+ devpriv->ao_loopbacks[i] = s->maxdata / 2;
init_timer(&(devpriv->timer));
devpriv->timer.function = waveform_ai_interrupt;
devpriv->timer.data = (unsigned long)dev;
- printk("attached\n");
-
+ printk(KERN_INFO "comedi%d: comedi_test: "
+ "%i microvolt, %li microsecond waveform attached\n", dev->minor,
+ devpriv->uvolt_amplitude, devpriv->usec_period);
return 1;
}
-static int waveform_detach(comedi_device * dev)
+static int waveform_detach(comedi_device *dev)
{
printk("comedi%d: comedi_test: remove\n", dev->minor);
- if (dev->private) {
+ if (dev->private)
waveform_ai_cancel(dev, dev->read_subdev);
- }
return 0;
}
-static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
- comedi_cmd * cmd)
+static int waveform_ai_cmdtest(comedi_device *dev, comedi_subdevice *s,
+ comedi_cmd *cmd)
{
int err = 0;
int tmp;
@@ -309,7 +305,9 @@ static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
if (err)
return 1;
- /* step 2: make sure trigger sources are unique and mutually compatible */
+ /*
+ * step 2: make sure trigger sources are unique and mutually compatible
+ */
if (cmd->convert_src != TRIG_NOW && cmd->convert_src != TRIG_TIMER)
err++;
@@ -344,7 +342,10 @@ static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
err++;
}
}
- // XXX these checks are generic and should go in core if not there already
+ /*
+ * XXX these checks are generic and should go in core if not there
+ * already
+ */
if (!cmd->chanlist_len) {
cmd->chanlist_len = 1;
err++;
@@ -373,7 +374,7 @@ static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
if (cmd->scan_begin_src == TRIG_TIMER) {
tmp = cmd->scan_begin_arg;
- // round to nearest microsec
+ /* round to nearest microsec */
cmd->scan_begin_arg =
nano_per_micro * ((tmp +
(nano_per_micro / 2)) / nano_per_micro);
@@ -382,7 +383,7 @@ static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
}
if (cmd->convert_src == TRIG_TIMER) {
tmp = cmd->convert_arg;
- // round to nearest microsec
+ /* round to nearest microsec */
cmd->convert_arg =
nano_per_micro * ((tmp +
(nano_per_micro / 2)) / nano_per_micro);
@@ -396,7 +397,7 @@ static int waveform_ai_cmdtest(comedi_device * dev, comedi_subdevice * s,
return 0;
}
-static int waveform_ai_cmd(comedi_device * dev, comedi_subdevice * s)
+static int waveform_ai_cmd(comedi_device *dev, comedi_subdevice *s)
{
comedi_cmd *cmd = &s->async->cmd;
@@ -428,15 +429,15 @@ static int waveform_ai_cmd(comedi_device * dev, comedi_subdevice * s)
return 0;
}
-static int waveform_ai_cancel(comedi_device * dev, comedi_subdevice * s)
+static int waveform_ai_cancel(comedi_device *dev, comedi_subdevice *s)
{
devpriv->timer_running = 0;
del_timer(&devpriv->timer);
return 0;
}
-static sampl_t fake_sawtooth(comedi_device * dev, unsigned int range_index,
- unsigned long current_time)
+static sampl_t fake_sawtooth(comedi_device *dev, unsigned int range_index,
+ unsigned long current_time)
{
comedi_subdevice *s = dev->read_subdev;
unsigned int offset = s->maxdata / 2;
@@ -452,12 +453,12 @@ static sampl_t fake_sawtooth(comedi_device * dev, unsigned int range_index,
value = current_time;
value *= binary_amplitude * 2;
do_div(value, devpriv->usec_period);
- value -= binary_amplitude; // get rid of sawtooth's dc offset
+ value -= binary_amplitude; /* get rid of sawtooth's dc offset */
return offset + value;
}
-static sampl_t fake_squarewave(comedi_device * dev, unsigned int range_index,
- unsigned long current_time)
+static sampl_t fake_squarewave(comedi_device *dev, unsigned int range_index,
+ unsigned long current_time)
{
comedi_subdevice *s = dev->read_subdev;
unsigned int offset = s->maxdata / 2;
@@ -475,15 +476,15 @@ static sampl_t fake_squarewave(comedi_device * dev, unsigned int range_index,
return offset + value;
}
-static sampl_t fake_flatline(comedi_device * dev, unsigned int range_index,
- unsigned long current_time)
+static sampl_t fake_flatline(comedi_device *dev, unsigned int range_index,
+ unsigned long current_time)
{
return dev->read_subdev->maxdata / 2;
}
-// generates a different waveform depending on what channel is read
-static sampl_t fake_waveform(comedi_device * dev, unsigned int channel,
- unsigned int range, unsigned long current_time)
+/* generates a different waveform depending on what channel is read */
+static sampl_t fake_waveform(comedi_device *dev, unsigned int channel,
+ unsigned int range, unsigned long current_time)
{
enum {
SAWTOOTH_CHAN,
@@ -503,8 +504,8 @@ static sampl_t fake_waveform(comedi_device * dev, unsigned int channel,
return fake_flatline(dev, range, current_time);
}
-static int waveform_ai_insn_read(comedi_device * dev, comedi_subdevice * s,
- comedi_insn * insn, lsampl_t * data)
+static int waveform_ai_insn_read(comedi_device *dev, comedi_subdevice *s,
+ comedi_insn *insn, lsampl_t *data)
{
int i, chan = CR_CHAN(insn->chanspec);
@@ -514,8 +515,8 @@ static int waveform_ai_insn_read(comedi_device * dev, comedi_subdevice * s,
return insn->n;
}
-static int waveform_ao_insn_write(comedi_device * dev, comedi_subdevice * s,
- comedi_insn * insn, lsampl_t * data)
+static int waveform_ao_insn_write(comedi_device *dev, comedi_subdevice *s,
+ comedi_insn *insn, lsampl_t *data)
{
int i, chan = CR_CHAN(insn->chanspec);