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Merge branches 'for-4.10/asus', 'for-4.10/cp2112', 'for-4.10/i2c-hid-nopower', 'for-4.10/intel-ish', 'for-4.10/mayflash', 'for-4.10/microsoft-surface-3', 'for-4.10/multitouch', 'for-4.10/sony', 'for-4.10/udraw-ps3', 'for-4.10/upstream' and 'for-4.10/wacom/generic' into for-linus

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This commit is contained in:
Jiri Kosina 2016-12-14 10:12:26 +01:00
commit 96e132ebc0
25 changed files with 2145 additions and 478 deletions
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96
drivers/hid/hid-input.c
View file

@ -253,6 +253,7 @@ __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
case ABS_RX:
case ABS_RY:
case ABS_RZ:
case ABS_WHEEL:
case ABS_TILT_X:
case ABS_TILT_Y:
if (field->unit == 0x14) { /* If degrees */
@ -1468,6 +1469,31 @@ static void hidinput_cleanup_hidinput(struct hid_device *hid,
kfree(hidinput);
}
static struct hid_input *hidinput_match(struct hid_report *report)
{
struct hid_device *hid = report->device;
struct hid_input *hidinput;
list_for_each_entry(hidinput, &hid->inputs, list) {
if (hidinput->report &&
hidinput->report->id == report->id)
return hidinput;
}
return NULL;
}
static inline void hidinput_configure_usages(struct hid_input *hidinput,
struct hid_report *report)
{
int i, j;
for (i = 0; i < report->maxfield; i++)
for (j = 0; j < report->field[i]->maxusage; j++)
hidinput_configure_usage(hidinput, report->field[i],
report->field[i]->usage + j);
}
/*
* Register the input device; print a message.
* Configure the input layer interface
@ -1478,8 +1504,8 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
{
struct hid_driver *drv = hid->driver;
struct hid_report *report;
struct hid_input *hidinput = NULL;
int i, j, k;
struct hid_input *next, *hidinput = NULL;
int i, k;
INIT_LIST_HEAD(&hid->inputs);
INIT_WORK(&hid->led_work, hidinput_led_worker);
@ -1509,43 +1535,40 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
if (!report->maxfield)
continue;
/*
* Find the previous hidinput report attached
* to this report id.
*/
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput = hidinput_match(report);
if (!hidinput) {
hidinput = hidinput_allocate(hid);
if (!hidinput)
goto out_unwind;
}
for (i = 0; i < report->maxfield; i++)
for (j = 0; j < report->field[i]->maxusage; j++)
hidinput_configure_usage(hidinput, report->field[i],
report->field[i]->usage + j);
hidinput_configure_usages(hidinput, report);
if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
!hidinput_has_been_populated(hidinput))
continue;
if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
/* This will leave hidinput NULL, so that it
* allocates another one if we have more inputs on
* the same interface. Some devices (e.g. Happ's
* UGCI) cram a lot of unrelated inputs into the
* same interface. */
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput->report = report;
if (drv->input_configured &&
drv->input_configured(hid, hidinput))
goto out_cleanup;
if (input_register_device(hidinput->input))
goto out_cleanup;
hidinput = NULL;
}
}
}
if (hidinput && (hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
!hidinput_has_been_populated(hidinput)) {
/* no need to register an input device not populated */
hidinput_cleanup_hidinput(hid, hidinput);
hidinput = NULL;
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
!hidinput_has_been_populated(hidinput)) {
/* no need to register an input device not populated */
hidinput_cleanup_hidinput(hid, hidinput);
continue;
}
if (drv->input_configured &&
drv->input_configured(hid, hidinput))
goto out_unwind;
if (input_register_device(hidinput->input))
goto out_unwind;
hidinput->registered = true;
}
if (list_empty(&hid->inputs)) {
@ -1553,20 +1576,8 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
goto out_unwind;
}
if (hidinput) {
if (drv->input_configured &&
drv->input_configured(hid, hidinput))
goto out_cleanup;
if (input_register_device(hidinput->input))
goto out_cleanup;
}
return 0;
out_cleanup:
list_del(&hidinput->list);
input_free_device(hidinput->input);
kfree(hidinput);
out_unwind:
/* unwind the ones we already registered */
hidinput_disconnect(hid);
@ -1583,7 +1594,10 @@ void hidinput_disconnect(struct hid_device *hid)
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
list_del(&hidinput->list);
input_unregister_device(hidinput->input);
if (hidinput->registered)
input_unregister_device(hidinput->input);
else
input_free_device(hidinput->input);
kfree(hidinput);
}