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Input: allow matching device IDs on property bits 

Let's allow matching input devices on their property bits, both in-kernel
and when generating module aliases.

Tested-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
zero-colors
Dmitry Torokhov 2017-10-09 12:01:14 -07:00
parent 55dfce873d
commit 8724ecb072
5 changed files with 15 additions and 2 deletions
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3
drivers/input/input.c
View File

@ -960,7 +960,8 @@ bool input_match_device_id(const struct input_dev *dev,
!bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) ||
!bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) ||
!bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) ||
!bitmap_subset(id->swbit, dev->swbit, SW_MAX)) {
!bitmap_subset(id->swbit, dev->swbit, SW_MAX) ||
!bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) {
return false;
}

4
include/linux/input.h
View File

@ -234,6 +234,10 @@ struct input_dev {
#error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match"
#endif
#if INPUT_PROP_MAX != INPUT_DEVICE_ID_PROP_MAX
#error "INPUT_PROP_MAX and INPUT_DEVICE_ID_PROP_MAX do not match"
#endif
#define INPUT_DEVICE_ID_MATCH_DEVICE \
(INPUT_DEVICE_ID_MATCH_BUS | INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT)
#define INPUT_DEVICE_ID_MATCH_DEVICE_AND_VERSION \

3
include/linux/mod_devicetable.h
View File

@ -293,6 +293,7 @@ struct pcmcia_device_id {
#define INPUT_DEVICE_ID_SND_MAX 0x07
#define INPUT_DEVICE_ID_FF_MAX 0x7f
#define INPUT_DEVICE_ID_SW_MAX 0x0f
#define INPUT_DEVICE_ID_PROP_MAX 0x1f
#define INPUT_DEVICE_ID_MATCH_BUS 1
#define INPUT_DEVICE_ID_MATCH_VENDOR 2
@ -308,6 +309,7 @@ struct pcmcia_device_id {
#define INPUT_DEVICE_ID_MATCH_SNDBIT 0x0400
#define INPUT_DEVICE_ID_MATCH_FFBIT 0x0800
#define INPUT_DEVICE_ID_MATCH_SWBIT 0x1000
#define INPUT_DEVICE_ID_MATCH_PROPBIT 0x2000
struct input_device_id {
@ -327,6 +329,7 @@ struct input_device_id {
kernel_ulong_t sndbit[INPUT_DEVICE_ID_SND_MAX / BITS_PER_LONG + 1];
kernel_ulong_t ffbit[INPUT_DEVICE_ID_FF_MAX / BITS_PER_LONG + 1];
kernel_ulong_t swbit[INPUT_DEVICE_ID_SW_MAX / BITS_PER_LONG + 1];
kernel_ulong_t propbit[INPUT_DEVICE_ID_PROP_MAX / BITS_PER_LONG + 1];
kernel_ulong_t driver_info;
};

1
scripts/mod/devicetable-offsets.c
View File

@ -105,6 +105,7 @@ int main(void)
DEVID_FIELD(input_device_id, sndbit);
DEVID_FIELD(input_device_id, ffbit);
DEVID_FIELD(input_device_id, swbit);
DEVID_FIELD(input_device_id, propbit);
DEVID(eisa_device_id);
DEVID_FIELD(eisa_device_id, sig);

6
scripts/mod/file2alias.c
View File

@ -761,7 +761,7 @@ static void do_input(char *alias,
sprintf(alias + strlen(alias), "%X,*", i);
}
/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwXprX where X is comma-separated %02X. */
static int do_input_entry(const char *filename, void *symval,
char *alias)
{
@ -779,6 +779,7 @@ static int do_input_entry(const char *filename, void *symval,
DEF_FIELD_ADDR(symval, input_device_id, sndbit);
DEF_FIELD_ADDR(symval, input_device_id, ffbit);
DEF_FIELD_ADDR(symval, input_device_id, swbit);
DEF_FIELD_ADDR(symval, input_device_id, propbit);
sprintf(alias, "input:");
@ -816,6 +817,9 @@ static int do_input_entry(const char *filename, void *symval,
sprintf(alias + strlen(alias), "w*");
if (flags & INPUT_DEVICE_ID_MATCH_SWBIT)
do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
sprintf(alias + strlen(alias), "pr*");
if (flags & INPUT_DEVICE_ID_MATCH_PROPBIT)
do_input(alias, *propbit, 0, INPUT_DEVICE_ID_PROP_MAX);
return 1;
}
ADD_TO_DEVTABLE("input", input_device_id, do_input_entry);