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path: root/drivers/usb/input/powermate.c
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Diffstat (limited to 'drivers/usb/input/powermate.c')
-rw-r--r--drivers/usb/input/powermate.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/usb/input/powermate.c b/drivers/usb/input/powermate.c
index 7fa2f9b..3975b30 100644
--- a/drivers/usb/input/powermate.c
+++ b/drivers/usb/input/powermate.c
@@ -10,7 +10,7 @@
* back to the host when polled by the USB controller.
*
* Testing with the knob I have has shown that it measures approximately 94 "clicks"
- * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
+ * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
* a variable speed cordless electric drill) has shown that the device can measure
* speeds of up to 7 clicks either clockwise or anticlockwise between pollings from
* the host. If it counts more than 7 clicks before it is polled, it will wrap back
@@ -120,9 +120,9 @@ exit:
/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
static void powermate_sync_state(struct powermate_device *pm)
{
- if (pm->requires_update == 0)
+ if (pm->requires_update == 0)
return; /* no updates are required */
- if (pm->config->status == -EINPROGRESS)
+ if (pm->config->status == -EINPROGRESS)
return; /* an update is already in progress; it'll issue this update when it completes */
if (pm->requires_update & UPDATE_PULSE_ASLEEP){
@@ -142,7 +142,7 @@ static void powermate_sync_state(struct powermate_device *pm)
2: multiply the speed
the argument only has an effect for operations 0 and 2, and ranges between
1 (least effect) to 255 (maximum effect).
-
+
thus, several states are equivalent and are coalesced into one state.
we map this onto a range from 0 to 510, with:
@@ -151,7 +151,7 @@ static void powermate_sync_state(struct powermate_device *pm)
256 -- 510 -- use multiple (510 = fastest).
Only values of 'arg' quite close to 255 are particularly useful/spectacular.
- */
+ */
if (pm->pulse_speed < 255){
op = 0; // divide
arg = 255 - pm->pulse_speed;
@@ -199,14 +199,14 @@ static void powermate_config_complete(struct urb *urb, struct pt_regs *regs)
if (urb->status)
printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
-
+
spin_lock_irqsave(&pm->lock, flags);
powermate_sync_state(pm);
spin_unlock_irqrestore(&pm->lock, flags);
}
/* Set the LED up as described and begin the sync with the hardware if required */
-static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
+static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
int pulse_table, int pulse_asleep, int pulse_awake)
{
unsigned long flags;
@@ -229,7 +229,7 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
/* mark state updates which are required */
if (static_brightness != pm->static_brightness){
pm->static_brightness = static_brightness;
- pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
+ pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
}
if (pulse_asleep != pm->pulse_asleep){
pm->pulse_asleep = pulse_asleep;
@@ -246,7 +246,7 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
}
powermate_sync_state(pm);
-
+
spin_unlock_irqrestore(&pm->lock, flags);
}
@@ -257,19 +257,19 @@ static int powermate_input_event(struct input_dev *dev, unsigned int type, unsig
struct powermate_device *pm = dev->private;
if (type == EV_MSC && code == MSC_PULSELED){
- /*
+ /*
bits 0- 7: 8 bits: LED brightness
bits 8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster.
bits 17-18: 2 bits: pulse table (0, 1, 2 valid)
bit 19: 1 bit : pulse whilst asleep?
bit 20: 1 bit : pulse constantly?
- */
+ */
int static_brightness = command & 0xFF; // bits 0-7
int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16
int pulse_table = (command >> 17) & 0x3; // bits 17-18
int pulse_asleep = (command >> 19) & 0x1; // bit 19
int pulse_awake = (command >> 20) & 0x1; // bit 20
-
+
powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake);
}
@@ -378,7 +378,7 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
switch (le16_to_cpu(udev->descriptor.idProduct)) {
case POWERMATE_PRODUCT_NEW: pm->input.name = pm_name_powermate; break;
case POWERMATE_PRODUCT_OLD: pm->input.name = pm_name_soundknob; break;
- default:
+ default:
pm->input.name = pm_name_soundknob;
printk(KERN_WARNING "powermate: unknown product id %04x\n",
le16_to_cpu(udev->descriptor.idProduct));
@@ -402,11 +402,11 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
usb_make_path(udev, path, 64);
snprintf(pm->phys, 64, "%s/input0", path);
printk(KERN_INFO "input: %s on %s\n", pm->input.name, pm->input.phys);
-
+
/* force an update of everything */
pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS;
powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters
-
+
usb_set_intfdata(intf, pm);
return 0;
}
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