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HID: wacom: Refactor button-to-key translation into function 

This just centralizes the logic used in both wacom_setup_numbered_buttons
and wacom_report_numbered_buttons so that they don't drift out of sync.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jason Gerecke 2016-10-19 18:03:39 -07:00 committed by Jiri Kosina
parent 1b18b75c7e
commit 49005b9fd0
1 changed files with 24 additions and 12 deletions
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36
drivers/hid/wacom_wac.c
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@ -2769,17 +2769,29 @@ int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
return 0;
}
static int wacom_numbered_button_to_key(int n)
{
if (n < 10)
return BTN_0 + n;
else if (n < 16)
return BTN_A + (n-10);
else if (n < 18)
return BTN_BASE + (n-16);
else
return 0;
}
static void wacom_setup_numbered_buttons(struct input_dev *input_dev,
int button_count)
{
int i;
for (i = 0; i < button_count && i < 10; i++)
__set_bit(BTN_0 + i, input_dev->keybit);
for (i = 10; i < button_count && i < 16; i++)
__set_bit(BTN_A + (i-10), input_dev->keybit);
for (i = 16; i < button_count && i < 18; i++)
__set_bit(BTN_BASE + (i-16), input_dev->keybit);
for (i = 0; i < button_count; i++) {
int key = wacom_numbered_button_to_key(i);
if (key)
__set_bit(key, input_dev->keybit);
}
}
static void wacom_24hd_update_leds(struct wacom *wacom, int mask, int group)
@ -2881,12 +2893,12 @@ static void wacom_report_numbered_buttons(struct input_dev *input_dev,
for (i = 0; i < wacom->led.count; i++)
wacom_update_led(wacom, button_count, mask, i);
for (i = 0; i < button_count && i < 10; i++)
input_report_key(input_dev, BTN_0 + i, mask & (1 << i));
for (i = 10; i < button_count && i < 16; i++)
input_report_key(input_dev, BTN_A + (i-10), mask & (1 << i));
for (i = 16; i < button_count && i < 18; i++)
input_report_key(input_dev, BTN_BASE + (i-16), mask & (1 << i));
for (i = 0; i < button_count; i++) {
int key = wacom_numbered_button_to_key(i);
if (key)
input_report_key(input_dev, key, mask & (1 << i));
}
}
int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,