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authorMika Westerberg <[email protected]>2021-12-10 13:11:34 +0200
committerBenjamin Tissoires <[email protected]>2021-12-14 10:05:39 +0100
commit8aa45b544db9788b0fcc7a300eba8a3ade5d3d50 (patch)
tree05312de2fdf9015fff400a78d1b47f50b6fcf3a8
parentf65a0b1f3e79444bba9ac56435eeb32db85ab2c9 (diff)
HID: Add map_msc() to avoid boilerplate code
Since we are going to have more MSC events too, add map_msc() that can be used to fill in necessary fields and avoid boilerplate code. Signed-off-by: Mika Westerberg <[email protected]> Reviewed-by: Benjamin Tissoires <[email protected]> Signed-off-by: Tero Kristo <[email protected]> Signed-off-by: Benjamin Tissoires <[email protected]> Link: https://lore.kernel.org/r/[email protected]
-rw-r--r--drivers/hid/hid-input.c6
-rw-r--r--include/linux/hid.h4
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 217f2d1b91c5..fbbb82f65842 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -52,6 +52,7 @@ static const struct {
#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
+#define map_msc(c) hid_map_usage(hidinput, usage, &bit, &max, EV_MSC, (c))
#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
&max, EV_ABS, (c))
@@ -874,10 +875,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case 0x5b: /* TransducerSerialNumber */
case 0x6e: /* TransducerSerialNumber2 */
- usage->type = EV_MSC;
- usage->code = MSC_SERIAL;
- bit = input->mscbit;
- max = MSC_MAX;
+ map_msc(MSC_SERIAL);
break;
default: goto unknown;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index b2fea7fc54a1..f18e2cf5d74d 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -1010,6 +1010,10 @@ static inline void hid_map_usage(struct hid_input *hidinput,
bmap = input->ledbit;
limit = LED_MAX;
break;
+ case EV_MSC:
+ bmap = input->mscbit;
+ limit = MSC_MAX;
+ break;
}
if (unlikely(c > limit || !bmap)) {