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HID: add feature_mapping callback
Currently hid doesn't export the features it knows to the specific modules. Some information can be really important in such features: MosArt and Cypress devices are by default not in a multitouch mode. We have to send the value 2 on the right feature. This patch exports to the module the features report so they can find the right feature to set up the correct mode. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -290,6 +290,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
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goto ignore;
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}
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if (field->report_type == HID_FEATURE_REPORT) {
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if (device->driver->feature_mapping) {
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device->driver->feature_mapping(device, hidinput, field,
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usage);
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}
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goto ignore;
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}
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if (device->driver->input_mapping) {
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int ret = device->driver->input_mapping(device, hidinput, field,
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usage, &bit, &max);
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@ -839,7 +847,6 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
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struct hid_input *hidinput = NULL;
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struct input_dev *input_dev;
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int i, j, k;
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int max_report_type = HID_OUTPUT_REPORT;
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INIT_LIST_HEAD(&hid->inputs);
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@ -856,10 +863,11 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
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return -1;
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}
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if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
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max_report_type = HID_INPUT_REPORT;
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for (k = HID_INPUT_REPORT; k <= HID_FEATURE_REPORT; k++) {
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if (k == HID_OUTPUT_REPORT &&
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hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
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continue;
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for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
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list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
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if (!report->maxfield)
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@ -912,6 +920,7 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
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hidinput = NULL;
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}
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}
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}
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if (hidinput && input_register_device(hidinput->input))
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goto out_cleanup;
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@ -593,6 +593,7 @@ struct hid_usage_id {
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* @report_fixup: called before report descriptor parsing (NULL means nop)
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* @input_mapping: invoked on input registering before mapping an usage
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* @input_mapped: invoked on input registering after mapping an usage
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* @feature_mapping: invoked on feature registering
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* @suspend: invoked on suspend (NULL means nop)
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* @resume: invoked on resume if device was not reset (NULL means nop)
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* @reset_resume: invoked on resume if device was reset (NULL means nop)
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@ -636,6 +637,9 @@ struct hid_driver {
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int (*input_mapped)(struct hid_device *hdev,
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struct hid_input *hidinput, struct hid_field *field,
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struct hid_usage *usage, unsigned long **bit, int *max);
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void (*feature_mapping)(struct hid_device *hdev,
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struct hid_input *hidinput, struct hid_field *field,
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struct hid_usage *usage);
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#ifdef CONFIG_PM
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int (*suspend)(struct hid_device *hdev, pm_message_t message);
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int (*resume)(struct hid_device *hdev);
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