* Register a new report for a device.
*/
-struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
+struct hid_report *hid_register_report(struct hid_device *device,
+ unsigned int type, unsigned int id,
+ unsigned int application)
{
struct hid_report_enum *report_enum = device->report_enum + type;
struct hid_report *report;
report->type = type;
report->size = 0;
report->device = device;
+ report->application = application;
report_enum->report_id_hash[id] = report;
list_add_tail(&report->list, &report_enum->report_list);
{
struct hid_report *report;
struct hid_field *field;
- unsigned usages;
- unsigned offset;
- unsigned i;
+ unsigned int usages;
+ unsigned int offset;
+ unsigned int i;
+ unsigned int application;
+
+ application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
- report = hid_register_report(parser->device, report_type, parser->global.report_id);
+ report = hid_register_report(parser->device, report_type,
+ parser->global.report_id, application);
if (!report) {
hid_err(parser->device, "hid_register_report failed\n");
return -1;
field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
- field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
+ field->application = application;
for (i = 0; i < usages; i++) {
unsigned j = i;
return true;
}
+static int hid_generic_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+
+ hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+
+ return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
static const struct hid_device_id hid_table[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, HID_ANY_ID, HID_ANY_ID) },
{ }
.name = "hid-generic",
.id_table = hid_table,
.match = hid_generic_match,
+ .probe = hid_generic_probe,
};
module_hid_driver(hid_generic);
* those reports reach gfrm_raw_event() from hid_input_report().
*/
if (!hid_register_report(hdev, HID_INPUT_REPORT,
- GFRM100_SEARCH_KEY_REPORT_ID)) {
+ GFRM100_SEARCH_KEY_REPORT_ID, 0)) {
ret = -ENOMEM;
goto done;
}
set_bit(usage->type, input->evbit);
- while (usage->code <= max && test_and_set_bit(usage->code, bit))
- usage->code = find_next_zero_bit(bit, max + 1, usage->code);
+ /*
+ * This part is *really* controversial:
+ * - HID aims at being generic so we should do our best to export
+ * all incoming events
+ * - HID describes what events are, so there is no reason for ABS_X
+ * to be mapped to ABS_Y
+ * - HID is using *_MISC+N as a default value, but nothing prevents
+ * *_MISC+N to overwrite a legitimate even, which confuses userspace
+ * (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different
+ * processing)
+ *
+ * If devices still want to use this (at their own risk), they will
+ * have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but
+ * the default should be a reliable mapping.
+ */
+ while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
+ if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) {
+ usage->code = find_next_zero_bit(bit,
+ max + 1,
+ usage->code);
+ } else {
+ device->status |= HID_STAT_DUP_DETECTED;
+ goto ignore;
+ }
+ }
if (usage->code > max)
goto ignore;
}
}
-static struct hid_input *hidinput_allocate(struct hid_device *hid)
+static struct hid_input *hidinput_allocate(struct hid_device *hid,
+ unsigned int application)
{
struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
struct input_dev *input_dev = input_allocate_device();
- if (!hidinput || !input_dev) {
- kfree(hidinput);
- input_free_device(input_dev);
- hid_err(hid, "Out of memory during hid input probe\n");
- return NULL;
+ const char *suffix = NULL;
+
+ if (!hidinput || !input_dev)
+ goto fail;
+
+ if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) &&
+ hid->maxapplication > 1) {
+ switch (application) {
+ case HID_GD_KEYBOARD:
+ suffix = "Keyboard";
+ break;
+ case HID_GD_KEYPAD:
+ suffix = "Keypad";
+ break;
+ case HID_GD_MOUSE:
+ suffix = "Mouse";
+ break;
+ case HID_DG_STYLUS:
+ suffix = "Pen";
+ break;
+ case HID_DG_TOUCHSCREEN:
+ suffix = "Touchscreen";
+ break;
+ case HID_DG_TOUCHPAD:
+ suffix = "Touchpad";
+ break;
+ case HID_GD_SYSTEM_CONTROL:
+ suffix = "System Control";
+ break;
+ case HID_CP_CONSUMER_CONTROL:
+ suffix = "Consumer Control";
+ break;
+ case HID_GD_WIRELESS_RADIO_CTLS:
+ suffix = "Wireless Radio Control";
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (suffix) {
+ hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
+ hid->name, suffix);
+ if (!hidinput->name)
+ goto fail;
}
input_set_drvdata(input_dev, hid);
input_dev->setkeycode = hidinput_setkeycode;
input_dev->getkeycode = hidinput_getkeycode;
- input_dev->name = hid->name;
+ input_dev->name = hidinput->name ? hidinput->name : hid->name;
input_dev->phys = hid->phys;
input_dev->uniq = hid->uniq;
input_dev->id.bustype = hid->bus;
input_dev->id.product = hid->product;
input_dev->id.version = hid->version;
input_dev->dev.parent = &hid->dev;
+
hidinput->input = input_dev;
list_add_tail(&hidinput->list, &hid->inputs);
+ INIT_LIST_HEAD(&hidinput->reports);
+
return hidinput;
+
+fail:
+ kfree(hidinput);
+ input_free_device(input_dev);
+ hid_err(hid, "Out of memory during hid input probe\n");
+ return NULL;
}
static bool hidinput_has_been_populated(struct hid_input *hidinput)
list_del(&hidinput->list);
input_free_device(hidinput->input);
+ kfree(hidinput->name);
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
if (k == HID_OUTPUT_REPORT &&
return NULL;
}
+static struct hid_input *hidinput_match_application(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->application == report->application)
+ return hidinput;
+ }
+
+ return NULL;
+}
+
static inline void hidinput_configure_usages(struct hid_input *hidinput,
struct hid_report *report)
{
struct hid_driver *drv = hid->driver;
struct hid_report *report;
struct hid_input *next, *hidinput = NULL;
+ unsigned int application;
int i, k;
INIT_LIST_HEAD(&hid->inputs);
INIT_WORK(&hid->led_work, hidinput_led_worker);
+ hid->status &= ~HID_STAT_DUP_DETECTED;
+
if (!force) {
for (i = 0; i < hid->maxcollection; i++) {
struct hid_collection *col = &hid->collection[i];
if (!report->maxfield)
continue;
+ application = report->application;
+
/*
* Find the previous hidinput report attached
* to this report id.
*/
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput = hidinput_match(report);
+ else if (hid->maxapplication > 1 &&
+ (hid->quirks & HID_QUIRK_INPUT_PER_APP))
+ hidinput = hidinput_match_application(report);
if (!hidinput) {
- hidinput = hidinput_allocate(hid);
+ hidinput = hidinput_allocate(hid, application);
if (!hidinput)
goto out_unwind;
}
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput->report = report;
+
+ list_add_tail(&report->hidinput_list,
+ &hidinput->reports);
}
}
goto out_unwind;
}
+ if (hid->status & HID_STAT_DUP_DETECTED)
+ hid_dbg(hid,
+ "Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n");
+
return 0;
out_unwind:
if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
- MOUSE_REPORT_ID);
+ MOUSE_REPORT_ID, 0);
else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
report = hid_register_report(hdev, HID_INPUT_REPORT,
- TRACKPAD_REPORT_ID);
+ TRACKPAD_REPORT_ID, 0);
report = hid_register_report(hdev, HID_INPUT_REPORT,
- DOUBLE_REPORT_ID);
+ DOUBLE_REPORT_ID, 0);
}
if (!report) {
#define MT_BUTTONTYPE_CLICKPAD 0
+enum latency_mode {
+ HID_LATENCY_NORMAL = 0,
+ HID_LATENCY_HIGH = 1,
+};
+
#define MT_IO_FLAGS_RUNNING 0
#define MT_IO_FLAGS_ACTIVE_SLOTS 1
#define MT_IO_FLAGS_PENDING_SLOTS 2
int left_button_state; /* left button state */
unsigned last_slot_field; /* the last field of a slot */
unsigned mt_report_id; /* the report ID of the multitouch device */
- __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
- __s16 inputmode_index; /* InputMode HID feature index in the report */
- __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
- -1 if non-existent */
- __u8 inputmode_value; /* InputMode HID feature value */
+ __u8 inputmode_value; /* InputMode HID feature value */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
__u8 maxcontacts;
struct mt_device *td = hid_get_drvdata(hdev);
switch (usage->hid) {
- case HID_DG_INPUTMODE:
- /* Ignore if value index is out of bounds. */
- if (usage->usage_index >= field->report_count) {
- dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
- break;
- }
-
- if (td->inputmode < 0) {
- td->inputmode = field->report->id;
- td->inputmode_index = usage->usage_index;
- } else {
- /*
- * Some elan panels wrongly declare 2 input mode
- * features, and silently ignore when we set the
- * value in the second field. Skip the second feature
- * and hope for the best.
- */
- dev_info(&hdev->dev,
- "Ignoring the extra HID_DG_INPUTMODE\n");
- }
-
- break;
case HID_DG_CONTACTMAX:
mt_get_feature(hdev, field->report);
- td->maxcontact_report_id = field->report->id;
td->maxcontacts = field->value[0];
if (!td->maxcontacts &&
field->logical_maximum <= MT_MAX_MAXCONTACT)
hid_map_usage(hi, usage, bit, max,
EV_MSC, MSC_TIMESTAMP);
input_set_capability(hi->input, EV_MSC, MSC_TIMESTAMP);
- mt_store_field(usage, td, hi);
/* Ignore if indexes are out of bounds. */
if (field->index >= field->report->maxfield ||
usage->usage_index >= field->report_count)
return 1;
td->scantime_index = field->index;
td->scantime_val_index = usage->usage_index;
+ /*
+ * We don't set td->last_slot_field as scan time is
+ * global to the report.
+ */
return 1;
case HID_DG_CONTACTCOUNT:
/* Ignore if indexes are out of bounds. */
input_sync(field->hidinput->input);
}
-static void mt_set_input_mode(struct hid_device *hdev)
+static bool mt_need_to_apply_feature(struct hid_device *hdev,
+ struct hid_field *field,
+ struct hid_usage *usage,
+ enum latency_mode latency,
+ bool surface_switch,
+ bool button_switch)
{
struct mt_device *td = hid_get_drvdata(hdev);
- struct hid_report *r;
- struct hid_report_enum *re;
struct mt_class *cls = &td->mtclass;
+ struct hid_report *report = field->report;
+ unsigned int index = usage->usage_index;
char *buf;
u32 report_len;
+ int max;
- if (td->inputmode < 0)
- return;
-
- re = &(hdev->report_enum[HID_FEATURE_REPORT]);
- r = re->report_id_hash[td->inputmode];
- if (r) {
+ switch (usage->hid) {
+ case HID_DG_INPUTMODE:
if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
- report_len = hid_report_len(r);
- buf = hid_alloc_report_buf(r, GFP_KERNEL);
+ report_len = hid_report_len(report);
+ buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf) {
- hid_err(hdev, "failed to allocate buffer for report\n");
- return;
+ hid_err(hdev,
+ "failed to allocate buffer for report\n");
+ return false;
}
- hid_hw_raw_request(hdev, r->id, buf, report_len,
+ hid_hw_raw_request(hdev, report->id, buf, report_len,
HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
kfree(buf);
}
- r->field[0]->value[td->inputmode_index] = td->inputmode_value;
- hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
- }
-}
-static void mt_set_maxcontacts(struct hid_device *hdev)
-{
- struct mt_device *td = hid_get_drvdata(hdev);
- struct hid_report *r;
- struct hid_report_enum *re;
- int fieldmax, max;
+ field->value[index] = td->inputmode_value;
+ return true;
- if (td->maxcontact_report_id < 0)
- return;
+ case HID_DG_CONTACTMAX:
+ if (td->mtclass.maxcontacts) {
+ max = min_t(int, field->logical_maximum,
+ td->mtclass.maxcontacts);
+ if (field->value[index] != max) {
+ field->value[index] = max;
+ return true;
+ }
+ }
+ break;
- if (!td->mtclass.maxcontacts)
- return;
+ case HID_DG_LATENCYMODE:
+ field->value[index] = latency;
+ return true;
+
+ case HID_DG_SURFACESWITCH:
+ field->value[index] = surface_switch;
+ return true;
+
+ case HID_DG_BUTTONSWITCH:
+ field->value[index] = button_switch;
+ return true;
+ }
- re = &hdev->report_enum[HID_FEATURE_REPORT];
- r = re->report_id_hash[td->maxcontact_report_id];
- if (r) {
- max = td->mtclass.maxcontacts;
- fieldmax = r->field[0]->logical_maximum;
- max = min(fieldmax, max);
- if (r->field[0]->value[0] != max) {
- r->field[0]->value[0] = max;
- hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
+ return false; /* no need to update the report */
+}
+
+static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency,
+ bool surface_switch, bool button_switch)
+{
+ struct hid_report_enum *rep_enum;
+ struct hid_report *rep;
+ struct hid_usage *usage;
+ int i, j;
+ bool update_report;
+
+ rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
+ list_for_each_entry(rep, &rep_enum->report_list, list) {
+ update_report = false;
+
+ for (i = 0; i < rep->maxfield; i++) {
+ /* Ignore if report count is out of bounds. */
+ if (rep->field[i]->report_count < 1)
+ continue;
+
+ for (j = 0; j < rep->field[i]->maxusage; j++) {
+ usage = &rep->field[i]->usage[j];
+
+ if (mt_need_to_apply_feature(hdev,
+ rep->field[i],
+ usage,
+ latency,
+ surface_switch,
+ button_switch))
+ update_report = true;
+ }
}
+
+ if (update_report)
+ hid_hw_request(hdev, rep, HID_REQ_SET_REPORT);
}
}
struct mt_device *td = hid_get_drvdata(hdev);
char *name;
const char *suffix = NULL;
- struct hid_field *field = hi->report->field[0];
+ unsigned int application = 0;
+ struct hid_report *report;
int ret;
- if (hi->report->id == td->mt_report_id) {
- ret = mt_touch_input_configured(hdev, hi);
- if (ret)
- return ret;
+ list_for_each_entry(report, &hi->reports, hidinput_list) {
+ application = report->application;
+ if (report->id == td->mt_report_id) {
+ ret = mt_touch_input_configured(hdev, hi);
+ if (ret)
+ return ret;
+ }
+
+ /*
+ * some egalax touchscreens have "application == DG_TOUCHSCREEN"
+ * for the stylus. Check this first, and then rely on
+ * the application field.
+ */
+ if (report->field[0]->physical == HID_DG_STYLUS) {
+ suffix = "Pen";
+ /* force BTN_STYLUS to allow tablet matching in udev */
+ __set_bit(BTN_STYLUS, hi->input->keybit);
+ }
}
- /*
- * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
- * for the stylus. Check this first, and then rely on the application
- * field.
- */
- if (hi->report->field[0]->physical == HID_DG_STYLUS) {
- suffix = "Pen";
- /* force BTN_STYLUS to allow tablet matching in udev */
- __set_bit(BTN_STYLUS, hi->input->keybit);
- } else {
- switch (field->application) {
+ if (!suffix) {
+ switch (application) {
case HID_GD_KEYBOARD:
- suffix = "Keyboard";
- break;
case HID_GD_KEYPAD:
- suffix = "Keypad";
- break;
case HID_GD_MOUSE:
- suffix = "Mouse";
- break;
- case HID_DG_STYLUS:
- suffix = "Pen";
- /* force BTN_STYLUS to allow tablet matching in udev */
- __set_bit(BTN_STYLUS, hi->input->keybit);
- break;
- case HID_DG_TOUCHSCREEN:
- /* we do not set suffix = "Touchscreen" */
- break;
case HID_DG_TOUCHPAD:
- suffix = "Touchpad";
- break;
case HID_GD_SYSTEM_CONTROL:
- suffix = "System Control";
- break;
case HID_CP_CONSUMER_CONTROL:
- suffix = "Consumer Control";
- break;
case HID_GD_WIRELESS_RADIO_CTLS:
- suffix = "Wireless Radio Control";
+ /* already handled by hid core */
+ break;
+ case HID_DG_TOUCHSCREEN:
+ /* we do not set suffix = "Touchscreen" */
+ hi->input->name = hdev->name;
+ break;
+ case HID_DG_STYLUS:
+ /* force BTN_STYLUS to allow tablet matching in udev */
+ __set_bit(BTN_STYLUS, hi->input->keybit);
break;
case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
suffix = "Custom Media Keys";
}
td->hdev = hdev;
td->mtclass = *mtclass;
- td->inputmode = -1;
- td->maxcontact_report_id = -1;
td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
td->cc_index = -1;
td->scantime_index = -1;
/*
* This allows the driver to handle different input sensors
- * that emits events through different reports on the same HID
+ * that emits events through different applications on the same HID
* device.
*/
- hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+ hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
timer_setup(&td->release_timer, mt_expired_timeout, 0);
dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
hdev->name);
- mt_set_maxcontacts(hdev);
- mt_set_input_mode(hdev);
+ mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
/* release .fields memory as it is not used anymore */
devm_kfree(&hdev->dev, td->fields);
static int mt_reset_resume(struct hid_device *hdev)
{
mt_release_contacts(hdev);
- mt_set_maxcontacts(hdev);
- mt_set_input_mode(hdev);
+ mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
return 0;
}
#define HID_DG_CONTACTCOUNT 0x000d0054
#define HID_DG_CONTACTMAX 0x000d0055
#define HID_DG_SCANTIME 0x000d0056
+#define HID_DG_SURFACESWITCH 0x000d0057
+#define HID_DG_BUTTONSWITCH 0x000d0058
#define HID_DG_BUTTONTYPE 0x000d0059
#define HID_DG_BARRELSWITCH2 0x000d005a
#define HID_DG_TOOLSERIALNUMBER 0x000d005b
+#define HID_DG_LATENCYMODE 0x000d0060
#define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
/*
/* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
/* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
#define HID_QUIRK_ALWAYS_POLL BIT(10)
+#define HID_QUIRK_INPUT_PER_APP BIT(11)
#define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16)
#define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17)
#define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18)
#define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19)
+#define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20)
#define HID_QUIRK_FULLSPEED_INTERVAL BIT(28)
#define HID_QUIRK_NO_INIT_REPORTS BIT(29)
#define HID_QUIRK_NO_IGNORE BIT(30)
struct hid_report {
struct list_head list;
- unsigned id; /* id of this report */
- unsigned type; /* report type */
+ struct list_head hidinput_list;
+ unsigned int id; /* id of this report */
+ unsigned int type; /* report type */
+ unsigned int application; /* application usage for this report */
struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */
unsigned maxfield; /* maximum valid field index */
unsigned size; /* size of the report (bits) */
#define HID_STAT_ADDED BIT(0)
#define HID_STAT_PARSED BIT(1)
+#define HID_STAT_DUP_DETECTED BIT(2)
struct hid_input {
struct list_head list;
struct hid_report *report;
struct input_dev *input;
+ const char *name;
bool registered;
+ struct list_head reports; /* the list of reports */
};
enum hid_type {
void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
struct hid_device *hid_allocate_device(void);
-struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
+struct hid_report *hid_register_report(struct hid_device *device,
+ unsigned int type, unsigned int id,
+ unsigned int application);
int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
struct hid_report *hid_validate_values(struct hid_device *hid,
unsigned int type, unsigned int id,
projects / linux-2.6-block.git / commitdiff