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author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2022-02-03 15:32:19 +0100 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2022-03-01 15:46:02 +0100 |
commit | f2d4ddfa640d2371bad55891159102acd2504108 (patch) | |
tree | e6cadbb82e7c427bbf8cffcd42ada172ca4a2746 /drivers | |
parent | 3c2b0dbd69901b71848c83d5c642be290198aa13 (diff) | |
download | linux-stable-f2d4ddfa640d2371bad55891159102acd2504108.tar.gz linux-stable-f2d4ddfa640d2371bad55891159102acd2504108.tar.bz2 linux-stable-f2d4ddfa640d2371bad55891159102acd2504108.zip |
HID: input: rework spaghetti code with switch statements
Instead of using multiple `if (a == b)`, use the switch statement
which has been done exactly for that.
There should be no functional change (I don't expect moving down
HID_QUIRK_{X|Y}_INVERT having any impact.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/hid/hid-input.c | 80 |
1 files changed, 43 insertions, 37 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index d2562497a726..54b3e9c5ccc4 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1354,12 +1354,6 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct input = field->hidinput->input; - if (usage->type == EV_ABS && - (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) || - ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))) { - value = field->logical_maximum - value; - } - if (usage->hat_min < usage->hat_max || usage->hat_dir) { int hat_dir = usage->hat_dir; if (!hat_dir) @@ -1370,12 +1364,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct return; } - if (usage->hid == HID_DG_INVERT) { + switch (usage->hid) { + case HID_DG_INVERT: *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); return; - } - if (usage->hid == HID_DG_INRANGE) { + case HID_DG_INRANGE: if (value) { input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); return; @@ -1383,46 +1377,58 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct input_event(input, usage->type, usage->code, 0); input_event(input, usage->type, BTN_TOOL_RUBBER, 0); return; - } - if (usage->hid == HID_DG_TIPPRESSURE && (*quirks & HID_QUIRK_NOTOUCH)) { - int a = field->logical_minimum; - int b = field->logical_maximum; - input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); - } + case HID_DG_TIPPRESSURE: + if (*quirks & HID_QUIRK_NOTOUCH) { + int a = field->logical_minimum; + int b = field->logical_maximum; + + input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); + } + break; - if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ + case HID_UP_PID | 0x83UL: /* Simultaneous Effects Max */ dbg_hid("Maximum Effects - %d\n",value); return; - } - if (usage->hid == (HID_UP_PID | 0x7fUL)) { + case HID_UP_PID | 0x7fUL: dbg_hid("PID Pool Report\n"); return; } - if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ - return; + switch (usage->type) { + case EV_KEY: + if (usage->code == 0) /* Key 0 is "unassigned", not KEY_UNKNOWN */ + return; + break; - if ((usage->type == EV_REL) && (usage->code == REL_WHEEL_HI_RES || - usage->code == REL_HWHEEL_HI_RES)) { - hidinput_handle_scroll(usage, input, value); - return; - } + case EV_REL: + if (usage->code == REL_WHEEL_HI_RES || + usage->code == REL_HWHEEL_HI_RES) { + hidinput_handle_scroll(usage, input, value); + return; + } + break; - if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && - (usage->code == ABS_VOLUME)) { - int count = abs(value); - int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; - int i; + case EV_ABS: + if ((field->flags & HID_MAIN_ITEM_RELATIVE) && + usage->code == ABS_VOLUME) { + int count = abs(value); + int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; + int i; + + for (i = 0; i < count; i++) { + input_event(input, EV_KEY, direction, 1); + input_sync(input); + input_event(input, EV_KEY, direction, 0); + input_sync(input); + } + return; - for (i = 0; i < count; i++) { - input_event(input, EV_KEY, direction, 1); - input_sync(input); - input_event(input, EV_KEY, direction, 0); - input_sync(input); - } - return; + } else if (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) || + ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y)) + value = field->logical_maximum - value; + break; } /* |