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Input: synaptics - add synaptics_query_int()

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Factor out querying and parsing 3-byte response into an integer value.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov
2017-03-23 17:40:57 -07:00
parent a716a026bb
commit 2c6ecbba90
2 changed files with 32 additions and 48 deletions
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3
drivers/input/mouse/synaptics.h
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@@ -52,7 +52,8 @@
#define SYN_CAP_PALMDETECT(c) ((c) & (1 << 0))
#define SYN_CAP_SUBMODEL_ID(c) (((c) & 0x00ff00) >> 8)
#define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20)
#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12)
#define SYN_CAP_MB_MASK GENMASK(15, 12)
#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & SYN_CAP_MB_MASK) >> 12)
#define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16)
#define SYN_MEXT_CAP_BIT(m) ((m) & (1 << 1))