diff options
| -rw-r--r-- | Documentation/input/multi-touch-protocol.rst | 12 | ||||
| -rw-r--r-- | drivers/hid/hid-core.c | 17 | ||||
| -rw-r--r-- | drivers/hid/hid-input.c | 3 | ||||
| -rw-r--r-- | drivers/hid/hid-microsoft.c | 49 | ||||
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 989 | ||||
| -rw-r--r-- | include/linux/hid.h | 15 | ||||
| -rw-r--r-- | include/uapi/linux/input.h | 9 |
7 files changed, 679 insertions, 415 deletions
diff --git a/Documentation/input/multi-touch-protocol.rst b/Documentation/input/multi-touch-protocol.rst index b51751a0cd5d..6be70342e709 100644 --- a/Documentation/input/multi-touch-protocol.rst +++ b/Documentation/input/multi-touch-protocol.rst @@ -310,12 +310,12 @@ ABS_MT_TOOL_Y ABS_MT_TOOL_TYPE The type of approaching tool. A lot of kernel drivers cannot distinguish between different tool types, such as a finger or a pen. In such cases, the - event should be omitted. The protocol currently supports MT_TOOL_FINGER, - MT_TOOL_PEN, and MT_TOOL_PALM [#f2]_. For type B devices, this event is - handled by input core; drivers should instead use - input_mt_report_slot_state(). A contact's ABS_MT_TOOL_TYPE may change over - time while still touching the device, because the firmware may not be able - to determine which tool is being used when it first appears. + event should be omitted. The protocol currently mainly supports + MT_TOOL_FINGER, MT_TOOL_PEN, and MT_TOOL_PALM [#f2]_. + For type B devices, this event is handled by input core; drivers should + instead use input_mt_report_slot_state(). A contact's ABS_MT_TOOL_TYPE may + change over time while still touching the device, because the firmware may + not be able to determine which tool is being used when it first appears. ABS_MT_BLOB_ID The BLOB_ID groups several packets together into one arbitrarily shaped diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 402ad974b31c..3da354af7a0a 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -128,9 +128,19 @@ static int open_collection(struct hid_parser *parser, unsigned type) usage = parser->local.usage[0]; - if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { - hid_err(parser->device, "collection stack overflow\n"); - return -EINVAL; + if (parser->collection_stack_ptr == parser->collection_stack_size) { + unsigned int *collection_stack; + unsigned int new_size = parser->collection_stack_size + + HID_COLLECTION_STACK_SIZE; + + collection_stack = krealloc(parser->collection_stack, + new_size * sizeof(unsigned int), + GFP_KERNEL); + if (!collection_stack) + return -ENOMEM; + + parser->collection_stack = collection_stack; + parser->collection_stack_size = new_size; } if (parser->device->maxcollection == parser->device->collection_size) { @@ -840,6 +850,7 @@ static int hid_scan_report(struct hid_device *hid) break; } + kfree(parser->collection_stack); vfree(parser); return 0; } diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index ab93dd5927c3..4e94ea3e280a 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1550,6 +1550,9 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid, case HID_GD_WIRELESS_RADIO_CTLS: suffix = "Wireless Radio Control"; break; + case HID_GD_SYSTEM_MULTIAXIS: + suffix = "System Multi Axis"; + break; default: break; } diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index 96e7d3231d2f..72d983626afd 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -22,12 +22,13 @@ #include "hid-ids.h" -#define MS_HIDINPUT 0x01 -#define MS_ERGONOMY 0x02 -#define MS_PRESENTER 0x04 -#define MS_RDESC 0x08 -#define MS_NOGET 0x10 -#define MS_DUPLICATE_USAGES 0x20 +#define MS_HIDINPUT BIT(0) +#define MS_ERGONOMY BIT(1) +#define MS_PRESENTER BIT(2) +#define MS_RDESC BIT(3) +#define MS_NOGET BIT(4) +#define MS_DUPLICATE_USAGES BIT(5) +#define MS_SURFACE_DIAL BIT(6) static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) @@ -130,6 +131,30 @@ static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage, return 1; } +static int ms_surface_dial_quirk(struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + switch (usage->hid & HID_USAGE_PAGE) { + case 0xff070000: + /* fall-through */ + case HID_UP_DIGITIZER: + /* ignore those axis */ + return -1; + case HID_UP_GENDESK: + switch (usage->hid) { + case HID_GD_X: + /* fall-through */ + case HID_GD_Y: + /* fall-through */ + case HID_GD_RFKILL_BTN: + /* ignore those axis */ + return -1; + } + } + + return 0; +} + static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) @@ -146,6 +171,13 @@ static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi, ms_presenter_8k_quirk(hi, usage, bit, max)) return 1; + if (quirks & MS_SURFACE_DIAL) { + int ret = ms_surface_dial_quirk(hi, field, usage, bit, max); + + if (ret) + return ret; + } + return 0; } @@ -229,6 +261,9 @@ static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id) if (quirks & MS_NOGET) hdev->quirks |= HID_QUIRK_NOGET; + if (quirks & MS_SURFACE_DIAL) + hdev->quirks |= HID_QUIRK_INPUT_PER_APP; + ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed\n"); @@ -281,6 +316,8 @@ static const struct hid_device_id ms_devices[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT), .driver_data = MS_PRESENTER }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B), + .driver_data = MS_SURFACE_DIAL }, { } }; MODULE_DEVICE_TABLE(hid, ms_devices); diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 45968f7970f8..40fbb7c52723 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -28,14 +28,11 @@ */ /* - * This driver is regularly tested thanks to the tool hid-test[1]. - * This tool relies on hid-replay[2] and a database of hid devices[3]. + * This driver is regularly tested thanks to the test suite in hid-tools[1]. * Please run these regression tests before patching this module so that * your patch won't break existing known devices. * - * [1] https://github.com/bentiss/hid-test - * [2] https://github.com/bentiss/hid-replay - * [3] https://github.com/bentiss/hid-devices + * [1] https://gitlab.freedesktop.org/libevdev/hid-tools */ #include <linux/device.h> @@ -90,13 +87,54 @@ enum latency_mode { #define MT_IO_FLAGS_ACTIVE_SLOTS 1 #define MT_IO_FLAGS_PENDING_SLOTS 2 -struct mt_slot { - __s32 x, y, cx, cy, p, w, h, a; - __s32 contactid; /* the device ContactID assigned to this slot */ - bool touch_state; /* is the touch valid? */ - bool inrange_state; /* is the finger in proximity of the sensor? */ - bool confidence_state; /* is the touch made by a finger? */ - bool has_azimuth; /* the contact reports azimuth */ +static const bool mtrue = true; /* default for true */ +static const bool mfalse; /* default for false */ +static const __s32 mzero; /* default for 0 */ + +#define DEFAULT_TRUE ((void *)&mtrue) +#define DEFAULT_FALSE ((void *)&mfalse) +#define DEFAULT_ZERO ((void *)&mzero) + +struct mt_usages { + struct list_head list; + __s32 *x, *y, *cx, *cy, *p, *w, *h, *a; + __s32 *contactid; /* the device ContactID assigned to this slot */ + bool *tip_state; /* is the touch valid? */ + bool *inrange_state; /* is the finger in proximity of the sensor? */ + bool *confidence_state; /* is the touch made by a finger? */ +}; + +struct mt_application { + struct list_head list; + unsigned int application; + struct list_head mt_usages; /* mt usages list */ + + __s32 quirks; + + __s32 *scantime; /* scantime reported */ + __s32 scantime_logical_max; /* max value for raw scantime */ + + __s32 *raw_cc; /* contact count in the report */ + int left_button_state; /* left button state */ + unsigned int mt_flags; /* flags to pass to input-mt */ + + unsigned long *pending_palm_slots; /* slots where we reported palm + * and need to release */ + + __u8 num_received; /* how many contacts we received */ + __u8 num_expected; /* expected last contact index */ + __u8 buttons_count; /* number of physical buttons per touchpad */ + __u8 touches_by_report; /* how many touches are present in one report: + * 1 means we should use a serial protocol + * > 1 means hybrid (multitouch) protocol + */ + + __s32 dev_time; /* the scan time provided by the device */ + unsigned long jiffies; /* the frame's jiffies */ + int timestamp; /* the timestamp to be sent */ + int prev_scantime; /* scantime reported previously */ + + bool have_contact_count; }; struct mt_class { @@ -111,46 +149,30 @@ struct mt_class { bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ }; -struct mt_fields { - unsigned usages[HID_MAX_FIELDS]; - unsigned int length; +struct mt_report_data { + struct list_head list; + struct hid_report *report; + struct mt_application *application; + bool is_mt_collection; }; struct mt_device { - struct mt_slot curdata; /* placeholder of incoming data */ struct mt_class mtclass; /* our mt device class */ struct timer_list release_timer; /* to release sticky fingers */ struct hid_device *hdev; /* hid_device we're attached to */ - struct mt_fields *fields; /* temporary placeholder for storing the - multitouch fields */ unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */ - int cc_index; /* contact count field index in the report */ - int cc_value_index; /* contact count value index in the field */ - int scantime_index; /* scantime field index in the report */ - int scantime_val_index; /* scantime value index in the field */ - int prev_scantime; /* scantime reported in the previous packet */ - 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 */ __u8 inputmode_value; /* InputMode HID feature value */ - __u8 num_received; /* how many contacts we received */ - __u8 num_expected; /* expected last contact index */ __u8 maxcontacts; - __u8 touches_by_report; /* how many touches are present in one report: - * 1 means we should use a serial protocol - * > 1 means hybrid (multitouch) protocol */ - __u8 buttons_count; /* number of physical buttons per touchpad */ bool is_buttonpad; /* is this device a button pad? */ bool serial_maybe; /* need to check for serial protocol */ - bool curvalid; /* is the current contact valid? */ - unsigned mt_flags; /* flags to pass to input-mt */ - __s32 dev_time; /* the scan time provided by the device */ - unsigned long jiffies; /* the frame's jiffies */ - int timestamp; /* the timestamp to be sent */ + + struct list_head applications; + struct list_head reports; }; -static void mt_post_parse_default_settings(struct mt_device *td); -static void mt_post_parse(struct mt_device *td); +static void mt_post_parse_default_settings(struct mt_device *td, + struct mt_application *app); +static void mt_post_parse(struct mt_device *td, struct mt_application *app); /* classes of device behavior */ #define MT_CLS_DEFAULT 0x0001 @@ -203,15 +225,16 @@ static void mt_post_parse(struct mt_device *td); * to a valid contact that was just read. */ -static int cypress_compute_slot(struct mt_device *td) +static int cypress_compute_slot(struct mt_application *application, + struct mt_usages *slot) { - if (td->curdata.contactid != 0 || td->num_received == 0) - return td->curdata.contactid; + if (*slot->contactid != 0 || application->num_received == 0) + return *slot->contactid; else return -1; } -static struct mt_class mt_classes[] = { +static const struct mt_class mt_classes[] = { { .name = MT_CLS_DEFAULT, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE }, @@ -353,6 +376,7 @@ static ssize_t mt_set_quirks(struct device *dev, { struct hid_device *hdev = to_hid_device(dev); struct mt_device *td = hid_get_drvdata(hdev); + struct mt_application *application; unsigned long val; @@ -361,8 +385,11 @@ static ssize_t mt_set_quirks(struct device *dev, td->mtclass.quirks = val; - if (td->cc_index < 0) - td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; + list_for_each_entry(application, &td->applications, list) { + application->quirks = val; + if (!application->have_contact_count) + application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; + } return count; } @@ -457,41 +484,199 @@ static void set_abs(struct input_dev *input, unsigned int code, input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); } -static void mt_store_field(struct hid_usage *usage, struct mt_device *td, - struct hid_input *hi) +static struct mt_usages *mt_allocate_usage(struct hid_device *hdev, + struct mt_application *application) +{ + struct mt_usages *usage; + + usage = devm_kzalloc(&hdev->dev, sizeof(*usage), GFP_KERNEL); + if (!usage) + return NULL; + + /* set some defaults so we do not need to check for null pointers */ + usage->x = DEFAULT_ZERO; + usage->y = DEFAULT_ZERO; + usage->cx = DEFAULT_ZERO; + usage->cy = DEFAULT_ZERO; + usage->p = DEFAULT_ZERO; + usage->w = DEFAULT_ZERO; + usage->h = DEFAULT_ZERO; + usage->a = DEFAULT_ZERO; + usage->contactid = DEFAULT_ZERO; + usage->tip_state = DEFAULT_FALSE; + usage->inrange_state = DEFAULT_FALSE; + usage->confidence_state = DEFAULT_TRUE; + + list_add_tail(&usage->list, &application->mt_usages); + + return usage; +} + +static struct mt_application *mt_allocate_application(struct mt_device *td, + unsigned int application) +{ + struct mt_application *mt_application; + + mt_application = devm_kzalloc(&td->hdev->dev, sizeof(*mt_application), + GFP_KERNEL); + if (!mt_application) + return NULL; + + mt_application->application = application; + INIT_LIST_HEAD(&mt_application->mt_usages); + + if (application == HID_DG_TOUCHSCREEN) + mt_application->mt_flags |= INPUT_MT_DIRECT; + + /* + * Model touchscreens providing buttons as touchpads. + */ + if (application == HID_DG_TOUCHPAD) { + mt_application->mt_flags |= INPUT_MT_POINTER; + td->inputmode_value = MT_INPUTMODE_TOUCHPAD; + } + + mt_application->scantime = DEFAULT_ZERO; + mt_application->raw_cc = DEFAULT_ZERO; + mt_application->quirks = td->mtclass.quirks; + + list_add_tail(&mt_application->list, &td->applications); + + return mt_application; +} + +static struct mt_application *mt_find_application(struct mt_device *td, + unsigned int application) +{ + struct mt_application *tmp, *mt_application = NULL; + + list_for_each_entry(tmp, &td->applications, list) { + if (application == tmp->application) { + mt_application = tmp; + break; + } + } + + if (!mt_application) + mt_application = mt_allocate_application(td, application); + + return mt_application; +} + +static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, + struct hid_report *report) +{ + struct mt_report_data *rdata; + struct hid_field *field; + int r, n; + + rdata = devm_kzalloc(&td->hdev->dev, sizeof(*rdata), GFP_KERNEL); + if (!rdata) + return NULL; + + rdata->report = report; + rdata->application = mt_find_application(td, report->application); + + if (!rdata->application) { + devm_kfree(&td->hdev->dev, rdata); + return NULL; + } + + for (r = 0; r < report->maxfield; r++) { + field = report->field[r]; + + if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) + continue; + + for (n = 0; n < field->report_count; n++) { + if (field->usage[n].hid == HID_DG_CONTACTID) + rdata->is_mt_collection = true; + } + } + + list_add_tail(&rdata->list, &td->reports); + + return rdata; +} + +static struct mt_report_data *mt_find_report_data(struct mt_device *td, + struct hid_report *report) { - struct mt_fields *f = td->fields; + struct mt_report_data *tmp, *rdata = NULL; - if (f->length >= HID_MAX_FIELDS) + list_for_each_entry(tmp, &td->reports, list) { + if (report == tmp->report) { + rdata = tmp; + break; + } + } + + if (!rdata) + rdata = mt_allocate_report_data(td, report); + + return rdata; +} + +static void mt_store_field(struct hid_device *hdev, + struct mt_application *application, + __s32 *value, + size_t offset) +{ + struct mt_usages *usage; + __s32 **target; + + if (list_empty(&application->mt_usages)) + usage = mt_allocate_usage(hdev, application); + else + usage = list_last_entry(&application->mt_usages, + struct mt_usages, + list); + + if (!usage) return; - f->usages[f->length++] = usage->hid; + target = (__s32 **)((char *)usage + offset); + + /* the value has already been filled, create a new slot */ + if (*target != DEFAULT_TRUE && + *target != DEFAULT_FALSE && + *target != DEFAULT_ZERO) { + usage = mt_allocate_usage(hdev, application); + if (!usage) + return; + + target = (__s32 **)((char *)usage + offset); + } + + *target = value; } +#define MT_STORE_FIELD(__name) \ + mt_store_field(hdev, app, \ + &field->value[usage->usage_index], \ + offsetof(struct mt_usages, __name)) + static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, - unsigned long **bit, int *max) + unsigned long **bit, int *max, struct mt_application *app) { struct mt_device *td = hid_get_drvdata(hdev); struct mt_class *cls = &td->mtclass; int code; struct hid_usage *prev_usage = NULL; - if (field->application == HID_DG_TOUCHSCREEN) - td->mt_flags |= INPUT_MT_DIRECT; - /* * Model touchscreens providing buttons as touchpads. */ - if (field->application == HID_DG_TOUCHPAD || + if (field->application == HID_DG_TOUCHSCREEN && (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { - td->mt_flags |= INPUT_MT_POINTER; + app->mt_flags |= INPUT_MT_POINTER; td->inputmode_value = MT_INPUTMODE_TOUCHPAD; } /* count the buttons on touchpads */ if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) - td->buttons_count++; + app->buttons_count++; if (usage->usage_index) prev_usage = &field->usage[usage->usage_index - 1]; @@ -502,33 +687,40 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, switch (usage->hid) { case HID_GD_X: if (prev_usage && (prev_usage->hid == usage->hid)) { - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_TOOL_X); - set_abs(hi->input, ABS_MT_TOOL_X, field, - cls->sn_move); + code = ABS_MT_TOOL_X; + MT_STORE_FIELD(cx); } else { - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_POSITION_X); - set_abs(hi->input, ABS_MT_POSITION_X, field, - cls->sn_move); + code = ABS_MT_POSITION_X; + MT_STORE_FIELD(x); + } + + set_abs(hi->input, code, field, cls->sn_move); + + /* + * A system multi-axis that exports X and Y has a high + * chance of being used directly on a surface + */ + if (field->application == HID_GD_SYSTEM_MULTIAXIS) { + __set_bit(INPUT_PROP_DIRECT, + hi->input->propbit); + input_set_abs_params(hi->input, + ABS_MT_TOOL_TYPE, + MT_TOOL_DIAL, + MT_TOOL_DIAL, 0, 0); } - mt_store_field(usage, td, hi); return 1; case HID_GD_Y: if (prev_usage && (prev_usage->hid == usage->hid)) { - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_TOOL_Y); - set_abs(hi->input, ABS_MT_TOOL_Y, field, - cls->sn_move); + code = ABS_MT_TOOL_Y; + MT_STORE_FIELD(cy); } else { - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_POSITION_Y); - set_abs(hi->input, ABS_MT_POSITION_Y, field, - cls->sn_move); + code = ABS_MT_POSITION_Y; + MT_STORE_FIELD(y); } - mt_store_field(usage, td, hi); + set_abs(hi->input, code, field, cls->sn_move); + return 1; } return 0; @@ -536,43 +728,45 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, case HID_UP_DIGITIZER: switch (usage->hid) { case HID_DG_INRANGE: - if (cls->quirks & MT_QUIRK_HOVERING) { - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_DISTANCE); + if (app->quirks & MT_QUIRK_HOVERING) { input_set_abs_params(hi->input, ABS_MT_DISTANCE, 0, 1, 0, 0); } - mt_store_field(usage, td, hi); + MT_STORE_FIELD(inrange_state); return 1; case HID_DG_CONFIDENCE: if ((cls->name == MT_CLS_WIN_8 || cls->name == MT_CLS_WIN_8_DUAL) && - field->application == HID_DG_TOUCHPAD) - cls->quirks |= MT_QUIRK_CONFIDENCE; - mt_store_field(usage, td, hi); + (field->application == HID_DG_TOUCHPAD || + field->application == HID_DG_TOUCHSCREEN)) + app->quirks |= MT_QUIRK_CONFIDENCE; + + if (app->quirks & MT_QUIRK_CONFIDENCE) + input_set_abs_params(hi->input, + ABS_MT_TOOL_TYPE, + MT_TOOL_FINGER, + MT_TOOL_PALM, 0, 0); + + MT_STORE_FIELD(confidence_state); return 1; case HID_DG_TIPSWITCH: - hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); - input_set_capability(hi->input, EV_KEY, BTN_TOUCH); - mt_store_field(usage, td, hi); + if (field->application != HID_GD_SYSTEM_MULTIAXIS) + input_set_capability(hi->input, + EV_KEY, BTN_TOUCH); + MT_STORE_FIELD(tip_state); return 1; case HID_DG_CONTACTID: - mt_store_field(usage, td, hi); - td->touches_by_report++; - td->mt_report_id = field->report->id; + MT_STORE_FIELD(contactid); + app->touches_by_report++; return 1; case HID_DG_WIDTH: - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_TOUCH_MAJOR); - if (!(cls->quirks & MT_QUIRK_NO_AREA)) + if (!(app->quirks & MT_QUIRK_NO_AREA)) set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, cls->sn_width); - mt_store_field(usage, td, hi); + MT_STORE_FIELD(w); return 1; case HID_DG_HEIGHT: - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_TOUCH_MINOR); - if (!(cls->quirks & MT_QUIRK_NO_AREA)) { + if (!(app->quirks & MT_QUIRK_NO_AREA)) { set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, cls->sn_height); @@ -585,41 +779,23 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, input_set_abs_params(hi->input, ABS_MT_ORIENTATION, 0, 1, 0, 0); } - mt_store_field(usage, td, hi); + MT_STORE_FIELD(h); return 1; case HID_DG_TIPPRESSURE: - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_PRESSURE); set_abs(hi->input, ABS_MT_PRESSURE, field, cls->sn_pressure); - mt_store_field(usage, td, hi); + MT_STORE_FIELD(p); return 1; case HID_DG_SCANTIME: - hid_map_usage(hi, usage, bit, max, - EV_MSC, MSC_TIMESTAMP); input_set_capability(hi->input, EV_MSC, MSC_TIMESTAMP); - /* 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. - */ + app->scantime = &field->value[usage->usage_index]; + app->scantime_logical_max = field->logical_maximum; return 1; case HID_DG_CONTACTCOUNT: - /* Ignore if indexes are out of bounds. */ - if (field->index >= field->report->maxfield || - usage->usage_index >= field->report_count) - return 1; - td->cc_index = field->index; - td->cc_value_index = usage->usage_index; + app->have_contact_count = true; + app->raw_cc = &field->value[usage->usage_index]; return 1; case HID_DG_AZIMUTH: - hid_map_usage(hi, usage, bit, max, - EV_ABS, ABS_MT_ORIENTATION); /* * Azimuth has the range of [0, MAX) representing a full * revolution. Set ABS_MT_ORIENTATION to a quarter of @@ -630,11 +806,10 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, field->logical_maximum / 4, cls->sn_move ? field->logical_maximum / cls->sn_move : 0, 0); - mt_store_field(usage, td, hi); + MT_STORE_FIELD(a); return 1; case HID_DG_CONTACTMAX: - /* we don't set td->last_slot_field as contactcount and - * contact max are global to the report */ + /* contact max are global to the report */ return -1; case HID_DG_TOUCH: /* Legacy devices use TIPSWITCH and not TOUCH. @@ -650,10 +825,14 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, * MS PTP spec says that external buttons left and right have * usages 2 and 3. */ - if ((cls->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && + if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && field->application == HID_DG_TOUCHPAD && (usage->hid & HID_USAGE) > 1) code--; + + if (field->application == HID_GD_SYSTEM_MULTIAXIS) + code = BTN_0 + ((usage->hid - 1) & HID_USAGE); + hid_map_usage(hi, usage, bit, max, EV_KEY, code); input_set_capability(hi->input, EV_KEY, code); return 1; @@ -666,110 +845,68 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, return 0; } -static int mt_compute_slot(struct mt_device *td, struct input_dev *input) +static int mt_compute_slot(struct mt_device *td, struct mt_application *app, + struct mt_usages *slot, + struct input_dev *input) { - __s32 quirks = td->mtclass.quirks; + __s32 quirks = app->quirks; if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) - return td->curdata.contactid; + return *slot->contactid; if (quirks & MT_QUIRK_CYPRESS) - return cypress_compute_slot(td); + return cypress_compute_slot(app, slot); if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) - return td->num_received; + return app->num_received; if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) - return td->curdata.contactid - 1; + return *slot->contactid - 1; - return input_mt_get_slot_by_key(input, td->curdata.contactid); + return input_mt_get_slot_by_key(input, *slot->contactid); } -/* - * this function is called when a whole contact has been processed, - * so that it can assign it to a slot and store the data there - */ -static void mt_complete_slot(struct mt_device *td, struct input_dev *input) +static void mt_release_pending_palms(struct mt_device *td, + struct mt_application *app, + struct input_dev *input) { - if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && - td->num_received >= td->num_expected) - return; - - if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { - int active; - int slotnum = mt_compute_slot(td, input); - struct mt_slot *s = &td->curdata; - struct input_mt *mt = input->mt; + int slotnum; + bool need_sync = false; - if (slotnum < 0 || slotnum >= td->maxcontacts) - return; - - if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { - struct input_mt_slot *slot = &mt->slots[slotnum]; - if (input_mt_is_active(slot) && - input_mt_is_used(mt, slot)) - return; - } - - if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE)) - s->confidence_state = true; - active = (s->touch_state || s->inrange_state) && - s->confidence_state; + for_each_set_bit(slotnum, app->pending_palm_slots, td->maxcontacts) { + clear_bit(slotnum, app->pending_palm_slots); input_mt_slot(input, slotnum); - input_mt_report_slot_state(input, MT_TOOL_FINGER, active); - if (active) { - /* this finger is in proximity of the sensor */ - int wide = (s->w > s->h); - int major = max(s->w, s->h); - int minor = min(s->w, s->h); - int orientation = wide; + input_mt_report_slot_state(input, MT_TOOL_PALM, false); - if (s->has_azimuth) - orientation = s->a; - - /* - * divided by two to match visual scale of touch - * for devices with this quirk - */ - if (td->mtclass.quirks & MT_QUIRK_TOUCH_SIZE_SCALING) { - major = major >> 1; - minor = minor >> 1; - } - - input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); - input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); - input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); - input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); - input_event(input, EV_ABS, ABS_MT_DISTANCE, - !s->touch_state); - input_event(input, EV_ABS, ABS_MT_ORIENTATION, - orientation); - input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); - input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); - input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); - - set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags); - } + need_sync = true; } - td->num_received++; + if (need_sync) { + input_mt_sync_frame(input); + input_sync(input); + } } /* * this function is called when a whole packet has been received and processed, * so that it can decide what to send to the input layer. */ -static void mt_sync_frame(struct mt_device *td, struct input_dev *input) +static void mt_sync_frame(struct mt_device *td, struct mt_application *app, + struct input_dev *input) { - if (td->mtclass.quirks & MT_QUIRK_WIN8_PTP_BUTTONS) - input_event(input, EV_KEY, BTN_LEFT, td->left_button_state); + if (app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) + input_event(input, EV_KEY, BTN_LEFT, app->left_button_state); input_mt_sync_frame(input); - input_event(input, EV_MSC, MSC_TIMESTAMP, td->timestamp); + input_event(input, EV_MSC, MSC_TIMESTAMP, app->timestamp); input_sync(input); - td->num_received = 0; - td->left_button_state = 0; + + mt_release_pending_palms(td, app, input); + + app->num_received = 0; + app->left_button_state = 0; + if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags)) set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags); else @@ -777,17 +914,15 @@ static void mt_sync_frame(struct mt_device *td, struct input_dev *input) clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags); } -static int mt_compute_timestamp(struct mt_device *td, struct hid_field *field, - __s32 value) +static int mt_compute_timestamp(struct mt_application *app, __s32 value) { - long delta = value - td->dev_time; - unsigned long jdelta = jiffies_to_usecs(jiffies - td->jiffies); + long delta = value - app->prev_scantime; + unsigned long jdelta = jiffies_to_usecs(jiffies - app->jiffies); - td->jiffies = jiffies; - td->dev_time = value; + app->jiffies = jiffies; if (delta < 0) - delta += field->logical_maximum; + delta += app->scantime_logical_max; /* HID_DG_SCANTIME is expressed in 100us, we want it in us. */ delta *= 100; @@ -796,7 +931,7 @@ static int mt_compute_timestamp(struct mt_device *td, struct hid_field *field, /* No data received for a while, resync the timestamp. */ return 0; else - return td->timestamp + delta; + return app->timestamp + delta; } static int mt_touch_event(struct hid_device *hid, struct hid_field *field, @@ -809,63 +944,90 @@ static int mt_touch_event(struct hid_device *hid, struct hid_field *field, return 1; } -static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, - struct hid_usage *usage, __s32 value, - bool first_packet) +static int mt_process_slot(struct mt_device *td, struct input_dev *input, + struct mt_application *app, + struct mt_usages *slot) { - struct mt_device *td = hid_get_drvdata(hid); - __s32 quirks = td->mtclass.quirks; - struct input_dev *input = field->hidinput->input; + struct input_mt *mt = input->mt; + __s32 quirks = app->quirks; + bool valid = true; + bool confidence_state = true; + bool inrange_state = false; + int active; + int slotnum; + int tool = MT_TOOL_FINGER; + + if (!slot) + return -EINVAL; - if (hid->claimed & HID_CLAIMED_INPUT) { - switch (usage->hid) { - case HID_DG_INRANGE: - if (quirks & MT_QUIRK_VALID_IS_INRANGE) - td->curvalid = value; - if (quirks & MT_QUIRK_HOVERING) - td->curdata.inrange_state = value; - break; - case HID_DG_TIPSWITCH: - if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) - td->curvalid = value; - td->curdata.touch_state = value; - break; - case HID_DG_CONFIDENCE: - if (quirks & MT_QUIRK_CONFIDENCE) - td->curdata.confidence_state = value; - if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) - td->curvalid = value; - break; - case HID_DG_CONTACTID: - td->curdata.contactid = value; - break; - case HID_DG_TIPPRESSURE: - td->curdata.p = value; - break; - case HID_GD_X: - if (usage->code == ABS_MT_TOOL_X) - td->curdata.cx = value; - else - td->curdata.x = value; - break; - case HID_GD_Y: - if (usage->code == ABS_MT_TOOL_Y) - td->curdata.cy = value; - else - td->curdata.y = value; - break; - case HID_DG_WIDTH: - td->curdata.w = value; - break; - case HID_DG_HEIGHT: - td->curdata.h = value; - break; - case HID_DG_SCANTIME: - td->timestamp = mt_compute_timestamp(td, field, value); - break; - case HID_DG_CONTACTCOUNT: - break; - case HID_DG_AZIMUTH: + if ((quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && + app->num_received >= app->num_expected) + return -EAGAIN; + + if (!(quirks & MT_QUIRK_ALWAYS_VALID)) { + if (quirks & MT_QUIRK_VALID_IS_INRANGE) + valid = *slot->inrange_state; + if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) + valid = *slot->tip_state; + if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) + valid = *slot->confidence_state; + + if (!valid) + return 0; + } + + slotnum = mt_compute_slot(td, app, slot, input); + if (slotnum < 0 || slotnum >= td->maxcontacts) + return 0; + + if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { + struct input_mt_slot *i_slot = &mt->slots[slotnum]; + + if (input_mt_is_active(i_slot) && + input_mt_is_used(mt, i_slot)) + return -EAGAIN; + } + + if (quirks & MT_QUIRK_CONFIDENCE) + confidence_state = *slot->confidence_state; + + if (quirks & MT_QUIRK_HOVERING) + inrange_state = *slot->inrange_state; + + active = *slot->tip_state || inrange_state; + + if (app->application == HID_GD_SYSTEM_MULTIAXIS) + tool = MT_TOOL_DIAL; + else if (unlikely(!confidence_state)) { + tool = MT_TOOL_PALM; + if (!active && + input_mt_is_active(&mt->slots[slotnum])) { + /* + * The non-confidence was reported for + * previously valid contact that is also no + * longer valid. We can't simply report + * lift-off as userspace will not be aware + * of non-confidence, so we need to split + * it into 2 events: active MT_TOOL_PALM + * and a separate liftoff. + */ + active = true; + set_bit(slotnum, app->pending_palm_slots); + } + } + + input_mt_slot(input, slotnum); + input_mt_report_slot_state(input, tool, active); + if (active) { + /* this finger is in proximity of the sensor */ + int wide = (*slot->w > *slot->h); + int major = max(*slot->w, *slot->h); + int minor = min(*slot->w, *slot->h); + int orientation = wide; + int max_azimuth; + int azimuth; + + if (slot->a != DEFAULT_ZERO) { /* * Azimuth is counter-clockwise and ranges from [0, MAX) * (a full revolution). Convert it to clockwise ranging @@ -876,77 +1038,107 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, * out of range to [-MAX/2, MAX/2] to report an upside * down ellipsis. */ - if (value > field->logical_maximum / 2) - value -= field->logical_maximum; - td->curdata.a = -value; - td->curdata.has_azimuth = true; - break; - case HID_DG_TOUCH: - /* do nothing */ - break; + azimuth = *slot->a; + max_azimuth = input_abs_get_max(input, + ABS_MT_ORIENTATION); + if (azimuth > max_azimuth * 2) + azimuth -= max_azimuth * 4; + orientation = -azimuth; + } - default: + if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) { /* - * For Win8 PTP touchpads we should only look at - * non finger/touch events in the first_packet of - * a (possible) multi-packet frame. + * divided by two to match visual scale of touch + * for devices with this quirk */ - if ((quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && - !first_packet) - return; + major = major >> 1; + minor = minor >> 1; + } - /* - * For Win8 PTP touchpads we map both the clickpad click - * and any "external" left buttons to BTN_LEFT if a - * device claims to have both we need to report 1 for - * BTN_LEFT if either is pressed, so we or all values - * together and report the result in mt_sync_frame(). - */ - if ((quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && - usage->type == EV_KEY && usage->code == BTN_LEFT) { - td->left_button_state |= value; - return; - } + input_event(input, EV_ABS, ABS_MT_POSITION_X, *slot->x); + input_event(input, EV_ABS, ABS_MT_POSITION_Y, *slot->y); + input_event(input, EV_ABS, ABS_MT_TOOL_X, *slot->cx); + input_event(input, EV_ABS, ABS_MT_TOOL_Y, *slot->cy); + input_event(input, EV_ABS, ABS_MT_DISTANCE, !*slot->tip_state); + input_event(input, EV_ABS, ABS_MT_ORIENTATION, orientation); + input_event(input, EV_ABS, ABS_MT_PRESSURE, *slot->p); + input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); + input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); + + set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags); + } - if (usage->type) - input_event(input, usage->type, usage->code, - value); + return 0; +} + +static void mt_process_mt_event(struct hid_device *hid, + struct mt_application *app, + struct hid_field *field, + struct hid_usage *usage, + __s32 value, + bool first_packet) +{ + __s32 quirks = app->quirks; + struct input_dev *input = field->hidinput->input; + + if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT)) + return; + + if (quirks & MT_QUIRK_WIN8_PTP_BUTTONS) { + + /* + * For Win8 PTP touchpads we should only look at + * non finger/touch events in the first_packet of a + * (possible) multi-packet frame. + */ + if (!first_packet) return; - } - if (usage->usage_index + 1 == field->report_count) { - /* we only take into account the last report. */ - if (usage->hid == td->last_slot_field) - mt_complete_slot(td, field->hidinput->input); + /* + * For Win8 PTP touchpads we map both the clickpad click + * and any "external" left buttons to BTN_LEFT if a + * device claims to have both we need to report 1 for + * BTN_LEFT if either is pressed, so we or all values + * together and report the result in mt_sync_frame(). + */ + if (usage->type == EV_KEY && usage->code == BTN_LEFT) { + app->left_button_state |= value; + return; } - } + + input_event(input, usage->type, usage->code, value); } -static void mt_touch_report(struct hid_device *hid, struct hid_report *report) +static void mt_touch_report(struct hid_device *hid, + struct mt_report_data *rdata) { struct mt_device *td = hid_get_drvdata(hid); + struct hid_report *report = rdata->report; + struct mt_application *app = rdata->application; struct hid_field *field; + struct input_dev *input; + struct mt_usages *slot; bool first_packet; unsigned count; - int r, n, scantime = 0; + int r, n; + int scantime = 0; + int contact_count = -1; /* sticky fingers release in progress, abort */ if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags)) return; + scantime = *app->scantime; + app->timestamp = mt_compute_timestamp(app, scantime); + if (app->raw_cc != DEFAULT_ZERO) + contact_count = *app->raw_cc; + /* * Includes multi-packet support where subsequent * packets are sent with zero contactcount. */ - if (td->scantime_index >= 0) { - field = report->field[td->scantime_index]; - scantime = field->value[td->scantime_val_index]; - } - if (td->cc_index >= 0) { - struct hid_field *field = report->field[td->cc_index]; - int value = field->value[td->cc_value_index]; - + if (contact_count >= 0) { /* * For Win8 PTPs the first packet (td->num_received == 0) may * have a contactcount of 0 if there only is a button event. @@ -954,16 +1146,25 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report) * of a possible multi-packet frame be checking that the * timestamp has changed. */ - if ((td->mtclass.quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && - td->num_received == 0 && td->prev_scantime != scantime) - td->num_expected = value; + if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && + app->num_received == 0 && + app->prev_scantime != scantime) + app->num_expected = contact_count; /* A non 0 contact count always indicates a first packet */ - else if (value) - td->num_expected = value; + else if (contact_count) + app->num_expected = contact_count; + } + app->prev_scantime = scantime; + + first_packet = app->num_received == 0; + + input = report->field[0]->hidinput->input; + + list_for_each_entry(slot, &app->mt_usages, list) { + if (!mt_process_slot(td, input, app, slot)) + app->num_received++; } - td->prev_scantime = scantime; - first_packet = td->num_received == 0; for (r = 0; r < report->maxfield; r++) { field = report->field[r]; count = field->report_count; @@ -972,12 +1173,13 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report) continue; for (n = 0; n < count; n++) - mt_process_mt_event(hid, field, &field->usage[n], - field->value[n], first_packet); + mt_process_mt_event(hid, app, field, + &field->usage[n], field->value[n], + first_packet); } - if (td->num_received >= td->num_expected) - mt_sync_frame(td, report->field[0]->hidinput->input); + if (app->num_received >= app->num_expected) + mt_sync_frame(td, app, input); /* * Windows 8 specs says 2 things: @@ -997,7 +1199,7 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report) * only affect laggish machines and the ones that have a firmware * defect. */ - if (td->mtclass.quirks & MT_QUIRK_STICKY_FINGERS) { + if (app->quirks & MT_QUIRK_STICKY_FINGERS) { if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags)) mod_timer(&td->release_timer, jiffies + msecs_to_jiffies(100)); @@ -1009,7 +1211,8 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report) } static int mt_touch_input_configured(struct hid_device *hdev, - struct hid_input *hi) + struct hid_input *hi, + struct mt_application *app) { struct mt_device *td = hid_get_drvdata(hdev); struct mt_class *cls = &td->mtclass; @@ -1019,28 +1222,36 @@ static int mt_touch_input_configured(struct hid_device *hdev, if (!td->maxcontacts) td->maxcontacts = MT_DEFAULT_MAXCONTACT; - mt_post_parse(td); + mt_post_parse(td, app); if (td->serial_maybe) - mt_post_parse_default_settings(td); + mt_post_parse_default_settings(td, app); if (cls->is_indirect) - td->mt_flags |= INPUT_MT_POINTER; + app->mt_flags |= INPUT_MT_POINTER; - if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) - td->mt_flags |= INPUT_MT_DROP_UNUSED; + if (app->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) + app->mt_flags |= INPUT_MT_DROP_UNUSED; /* check for clickpads */ - if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1)) + if ((app->mt_flags & INPUT_MT_POINTER) && + (app->buttons_count == 1)) td->is_buttonpad = true; if (td->is_buttonpad) __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); - ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags); + app->pending_palm_slots = devm_kcalloc(&hi->input->dev, + BITS_TO_LONGS(td->maxcontacts), + sizeof(long), + GFP_KERNEL); + if (!app->pending_palm_slots) + return -ENOMEM; + + ret = input_mt_init_slots(input, td->maxcontacts, app->mt_flags); if (ret) return ret; - td->mt_flags = 0; + app->mt_flags = 0; return 0; } @@ -1051,6 +1262,16 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, unsigned long **bit, int *max) { struct mt_device *td = hid_get_drvdata(hdev); + struct mt_application *application; + struct mt_report_data *rdata; + + rdata = mt_find_report_data(td, field->report); + if (!rdata) { + hid_err(hdev, "failed to allocate data for report\n"); + return 0; + } + + application = rdata->application; /* * If mtclass.export_all_inputs is not set, only map fields from @@ -1066,8 +1287,9 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, field->application != HID_GD_SYSTEM_CONTROL && field->application != HID_CP_CONSUMER_CONTROL && field->application != HID_GD_WIRELESS_RADIO_CTLS && + field->application != HID_GD_SYSTEM_MULTIAXIS && !(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && - td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP)) + application->quirks & MT_QUIRK_ASUS_CUSTOM_UP)) return -1; /* @@ -1076,7 +1298,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, * map usages to input keys. */ if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && - td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP && + application->quirks & MT_QUIRK_ASUS_CUSTOM_UP && (usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) { set_bit(EV_REP, hi->input->evbit); if (field->flags & HID_MAIN_ITEM_VARIABLE) @@ -1093,23 +1315,9 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, return 1; } - /* - * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" - * for the stylus. - * The check for mt_report_id ensures we don't process - * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical - * collection, but within the report ID. - */ - if (field->physical == HID_DG_STYLUS) - return 0; - else if ((field->physical == 0) && - (field->report->id != td->mt_report_id) && - (td->mt_report_id != -1)) - return 0; - - if (field->application == HID_DG_TOUCHSCREEN || - field->application == HID_DG_TOUCHPAD) - return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); + if (rdata->is_mt_collection) + return mt_touch_input_mapping(hdev, hi, field, usage, bit, max, + application); /* let hid-core decide for the others */ return 0; @@ -1119,15 +1327,11 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { - /* - * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" - * for the stylus. - */ - if (field->physical == HID_DG_STYLUS) - return 0; + struct mt_device *td = hid_get_drvdata(hdev); + struct mt_report_data *rdata; - if (field->application == HID_DG_TOUCHSCREEN || - field->application == HID_DG_TOUCHPAD) { + rdata = mt_find_report_data(td, field->report); + if (rdata && rdata->is_mt_collection) { /* We own these mappings, tell hid-input to ignore them */ return -1; } @@ -1140,8 +1344,10 @@ static int mt_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) { struct mt_device *td = hid_get_drvdata(hid); + struct mt_report_data *rdata; - if (field->report->id == td->mt_report_id) + rdata = mt_find_report_data(td, field->report); + if (rdata && rdata->is_mt_collection) return mt_touch_event(hid, field, usage, value); return 0; @@ -1151,12 +1357,14 @@ static void mt_report(struct hid_device *hid, struct hid_report *report) { struct mt_device *td = hid_get_drvdata(hid); struct hid_field *field = report->field[0]; + struct mt_report_data *rdata; if (!(hid->claimed & HID_CLAIMED_INPUT)) return; - if (report->id == td->mt_report_id) - return mt_touch_report(hid, report); + rdata = mt_find_report_data(td, report); + if (rdata && rdata->is_mt_collection) + return mt_touch_report(hid, rdata); if (field && field->hidinput && field->hidinput->input) input_sync(field->hidinput->input); @@ -1197,9 +1405,9 @@ static bool mt_need_to_apply_feature(struct hid_device *hdev, return true; case HID_DG_CONTACTMAX: - if (td->mtclass.maxcontacts) { + if (cls->maxcontacts) { max = min_t(int, field->logical_maximum, - td->mtclass.maxcontacts); + cls->maxcontacts); if (field->value[index] != max) { field->value[index] = max; return true; @@ -1259,12 +1467,13 @@ static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency, } } -static void mt_post_parse_default_settings(struct mt_device *td) +static void mt_post_parse_default_settings(struct mt_device *td, + struct mt_application *app) { - __s32 quirks = td->mtclass.quirks; + __s32 quirks = app->quirks; /* unknown serial device needs special quirks */ - if (td->touches_by_report == 1) { + if (list_is_singular(&app->mt_usages)) { quirks |= MT_QUIRK_ALWAYS_VALID; quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; quirks &= ~MT_QUIRK_VALID_IS_INRANGE; @@ -1272,21 +1481,13 @@ static void mt_post_parse_default_settings(struct mt_device *td) quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; } - td->mtclass.quirks = quirks; + app->quirks = quirks; } -static void mt_post_parse(struct mt_device *td) +static void mt_post_parse(struct mt_device *td, struct mt_application *app) { - struct mt_fields *f = td->fields; - struct mt_class *cls = &td->mtclass; - - if (td->touches_by_report > 0) { - int field_count_per_touch = f->length / td->touches_by_report; - td->last_slot_field = f->usages[field_count_per_touch - 1]; - } - - if (td->cc_index < 0) - cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; + if (!app->have_contact_count) + app->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; } static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) @@ -1295,13 +1496,24 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) char *name; const char *suffix = NULL; unsigned int application = 0; + struct mt_report_data *rdata; + struct mt_application *mt_application = NULL; struct hid_report *report; int 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); + rdata = mt_find_report_data(td, report); + if (!rdata) { + hid_err(hdev, "failed to allocate data for report\n"); + return -ENOMEM; + } + + mt_application = rdata->application; + + if (rdata->is_mt_collection) { + ret = mt_touch_input_configured(hdev, hi, + mt_application); if (ret) return ret; } @@ -1327,6 +1539,7 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) case HID_GD_SYSTEM_CONTROL: case HID_CP_CONSUMER_CONTROL: case HID_GD_WIRELESS_RADIO_CTLS: + case HID_GD_SYSTEM_MULTIAXIS: /* already handled by hid core */ break; case HID_DG_TOUCHSCREEN: @@ -1390,6 +1603,7 @@ static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage) static void mt_release_contacts(struct hid_device *hid) { struct hid_input *hidinput; + struct mt_application *application; struct mt_device *td = hid_get_drvdata(hid); list_for_each_entry(hidinput, &hid->inputs, list) { @@ -1409,7 +1623,9 @@ static void mt_release_contacts(struct hid_device *hid) } } - td->num_received = 0; + list_for_each_entry(application, &td->applications, list) { + application->num_received = 0; + } } static void mt_expired_timeout(struct timer_list *t) @@ -1432,7 +1648,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret, i; struct mt_device *td; - struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ + const struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ for (i = 0; mt_classes[i].name ; i++) { if (id->driver_data == mt_classes[i].name) { @@ -1449,17 +1665,10 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) td->hdev = hdev; td->mtclass = *mtclass; td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; - td->cc_index = -1; - td->scantime_index = -1; - td->mt_report_id = -1; hid_set_drvdata(hdev, td); - td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), - GFP_KERNEL); - if (!td->fields) { - dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); - return -ENOMEM; - } + INIT_LIST_HEAD(&td->applications); + INIT_LIST_HEAD(&td->reports); if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) td->serial_maybe = true; @@ -1496,10 +1705,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true); - /* release .fields memory as it is not used anymore */ - devm_kfree(&hdev->dev, td->fields); - td->fields = NULL; - return 0; } diff --git a/include/linux/hid.h b/include/linux/hid.h index 938d9ba6d7cd..834e6461a690 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -190,6 +190,12 @@ struct hid_item { * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf */ #define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c +/* + * System Multi-Axis, see: + * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt + */ +#define HID_GD_SYSTEM_MULTIAXIS 0x0001000e + #define HID_GD_X 0x00010030 #define HID_GD_Y 0x00010031 #define HID_GD_Z 0x00010032 @@ -638,12 +644,13 @@ static inline void hid_set_drvdata(struct hid_device *hdev, void *data) struct hid_parser { struct hid_global global; struct hid_global global_stack[HID_GLOBAL_STACK_SIZE]; - unsigned global_stack_ptr; + unsigned int global_stack_ptr; struct hid_local local; - unsigned collection_stack[HID_COLLECTION_STACK_SIZE]; - unsigned collection_stack_ptr; + unsigned int *collection_stack; + unsigned int collection_stack_ptr; + unsigned int collection_stack_size; struct hid_device *device; - unsigned scan_flags; + unsigned int scan_flags; }; struct hid_class_descriptor { diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h index 7288a7c573cc..fb78f6f500f3 100644 --- a/include/uapi/linux/input.h +++ b/include/uapi/linux/input.h @@ -270,10 +270,11 @@ struct input_mask { /* * MT_TOOL types */ -#define MT_TOOL_FINGER 0 -#define MT_TOOL_PEN 1 -#define MT_TOOL_PALM 2 -#define MT_TOOL_MAX 2 +#define MT_TOOL_FINGER 0x00 +#define MT_TOOL_PEN 0x01 +#define MT_TOOL_PALM 0x02 +#define MT_TOOL_DIAL 0x0a +#define MT_TOOL_MAX 0x0f /* * Values describing the status of a force-feedback effect |