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Date: Wed, 6 Nov 2019 22:11:56 +0100
From: Henrik Rydberg <rydberg@...math.org>
To: Jiada Wang <jiada_wang@...tor.com>, jikos@...nel.org,
benjamin.tissoires@...hat.com, dmitry.torokhov@...il.com,
nick@...anahar.org
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
erosca@...adit-jv.com, Andrew_Gabbasov@...tor.com
Subject: Re: [PATCH v5 01/48] Input: introduce input_mt_report_slot_inactive
On 2019-11-06 08:00, Jiada Wang wrote:
> input_mt_report_slot_state() ignores the tool when the slot is closed.
> which has caused a bit of confusion.
> This patch introduces input_mt_report_slot_inactive() to report slot
> inactive state.
> replaces all input_mt_report_slot_state() with
> input_mt_report_slot_inactive() in case of close of slot.
>
> Suggested-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Signed-off-by: Jiada Wang <jiada_wang@...tor.com>
Reviewed-by: Henrik Rydberg <rydberg@...math.org>
Thanks,
Henrik
> ---
> drivers/hid/hid-alps.c | 3 +--
> drivers/hid/hid-multitouch.c | 6 ++----
> drivers/input/input-mt.c | 2 +-
> drivers/input/misc/xen-kbdfront.c | 2 +-
> drivers/input/mouse/elan_i2c_core.c | 2 +-
> drivers/input/touchscreen/atmel_mxt_ts.c | 7 +++----
> drivers/input/touchscreen/cyttsp4_core.c | 5 ++---
> drivers/input/touchscreen/cyttsp_core.c | 2 +-
> drivers/input/touchscreen/melfas_mip4.c | 4 ++--
> drivers/input/touchscreen/mms114.c | 2 +-
> drivers/input/touchscreen/raspberrypi-ts.c | 2 +-
> drivers/input/touchscreen/stmfts.c | 2 +-
> include/linux/input/mt.h | 5 +++++
> 13 files changed, 22 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
> index ae79a7c66737..36ca1d815d53 100644
> --- a/drivers/hid/hid-alps.c
> +++ b/drivers/hid/hid-alps.c
> @@ -387,8 +387,7 @@ static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size)
> input_report_abs(hdata->input,
> ABS_MT_PRESSURE, z);
> } else {
> - input_mt_report_slot_state(hdata->input,
> - MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(hdata->input);
> }
> }
>
> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
> index 3cfeb1629f79..15e6c04a76dd 100644
> --- a/drivers/hid/hid-multitouch.c
> +++ b/drivers/hid/hid-multitouch.c
> @@ -896,7 +896,7 @@ static void mt_release_pending_palms(struct mt_device *td,
> clear_bit(slotnum, app->pending_palm_slots);
>
> input_mt_slot(input, slotnum);
> - input_mt_report_slot_state(input, MT_TOOL_PALM, false);
> + input_mt_report_slot_inactive(input);
>
> need_sync = true;
> }
> @@ -1640,9 +1640,7 @@ static void mt_release_contacts(struct hid_device *hid)
> if (mt) {
> for (i = 0; i < mt->num_slots; i++) {
> input_mt_slot(input_dev, i);
> - input_mt_report_slot_state(input_dev,
> - MT_TOOL_FINGER,
> - false);
> + input_mt_report_slot_inactive(input_dev);
> }
> input_mt_sync_frame(input_dev);
> input_sync(input_dev);
> diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
> index a81e14148407..7626fe5bfe44 100644
> --- a/drivers/input/input-mt.c
> +++ b/drivers/input/input-mt.c
> @@ -145,7 +145,7 @@ bool input_mt_report_slot_state(struct input_dev *dev,
> slot->frame = mt->frame;
>
> if (!active) {
> - input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
> + input_mt_report_slot_inactive(dev);
> return false;
> }
>
> diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
> index 24bc5c5d876f..a1bba722b234 100644
> --- a/drivers/input/misc/xen-kbdfront.c
> +++ b/drivers/input/misc/xen-kbdfront.c
> @@ -146,7 +146,7 @@ static void xenkbd_handle_mt_event(struct xenkbd_info *info,
> break;
>
> case XENKBD_MT_EV_UP:
> - input_mt_report_slot_state(info->mtouch, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(info->mtouch);
> break;
>
> case XENKBD_MT_EV_SYN:
> diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
> index 8719da540383..3f9354baac4b 100644
> --- a/drivers/input/mouse/elan_i2c_core.c
> +++ b/drivers/input/mouse/elan_i2c_core.c
> @@ -938,7 +938,7 @@ static void elan_report_contact(struct elan_tp_data *data,
> input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
> } else {
> input_mt_slot(input, contact_num);
> - input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(input);
> }
> }
>
> diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
> index 24c4b691b1c9..6e758af343ea 100644
> --- a/drivers/input/touchscreen/atmel_mxt_ts.c
> +++ b/drivers/input/touchscreen/atmel_mxt_ts.c
> @@ -822,8 +822,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
> * have happened.
> */
> if (status & MXT_T9_RELEASE) {
> - input_mt_report_slot_state(input_dev,
> - MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(input_dev);
> mxt_input_sync(data);
> }
>
> @@ -839,7 +838,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
> input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
> } else {
> /* Touch no longer active, close out slot */
> - input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(input_dev);
> }
>
> data->update_input = true;
> @@ -947,7 +946,7 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
> dev_dbg(dev, "[%u] release\n", id);
>
> /* close out slot */
> - input_mt_report_slot_state(input_dev, 0, 0);
> + input_mt_report_slot_inactive(input_dev);
> }
>
> data->update_input = true;
> diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
> index 4b22d49a0f49..a3a85e2348a2 100644
> --- a/drivers/input/touchscreen/cyttsp4_core.c
> +++ b/drivers/input/touchscreen/cyttsp4_core.c
> @@ -744,8 +744,7 @@ static void cyttsp4_report_slot_liftoff(struct cyttsp4_mt_data *md,
>
> for (t = 0; t < max_slots; t++) {
> input_mt_slot(md->input, t);
> - input_mt_report_slot_state(md->input,
> - MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(md->input);
> }
> }
>
> @@ -845,7 +844,7 @@ static void cyttsp4_final_sync(struct input_dev *input, int max_slots, int *ids)
> if (ids[t])
> continue;
> input_mt_slot(input, t);
> - input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(input);
> }
>
> input_sync(input);
> diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
> index 3f5d463dbeed..697aa2c158f7 100644
> --- a/drivers/input/touchscreen/cyttsp_core.c
> +++ b/drivers/input/touchscreen/cyttsp_core.c
> @@ -340,7 +340,7 @@ static void cyttsp_report_tchdata(struct cyttsp *ts)
> continue;
>
> input_mt_slot(input, i);
> - input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(input);
> }
>
> input_sync(input);
> diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c
> index 247c3aaba2d8..f67efdd040b2 100644
> --- a/drivers/input/touchscreen/melfas_mip4.c
> +++ b/drivers/input/touchscreen/melfas_mip4.c
> @@ -391,7 +391,7 @@ static void mip4_clear_input(struct mip4_ts *ts)
> /* Screen */
> for (i = 0; i < MIP4_MAX_FINGERS; i++) {
> input_mt_slot(ts->input, i);
> - input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(ts->input);
> }
>
> /* Keys */
> @@ -534,7 +534,7 @@ static void mip4_report_touch(struct mip4_ts *ts, u8 *packet)
> } else {
> /* Release event */
> input_mt_slot(ts->input, id);
> - input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(ts->input);
> }
>
> input_mt_sync_frame(ts->input);
> diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
> index a5ab774da4cc..8112bd77afae 100644
> --- a/drivers/input/touchscreen/mms114.c
> +++ b/drivers/input/touchscreen/mms114.c
> @@ -550,7 +550,7 @@ static int __maybe_unused mms114_suspend(struct device *dev)
> /* Release all touch */
> for (id = 0; id < MMS114_MAX_TOUCH; id++) {
> input_mt_slot(input_dev, id);
> - input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(input_dev);
> }
>
> input_mt_report_pointer_emulation(input_dev, true);
> diff --git a/drivers/input/touchscreen/raspberrypi-ts.c b/drivers/input/touchscreen/raspberrypi-ts.c
> index 69881265d121..147ea4f8f87b 100644
> --- a/drivers/input/touchscreen/raspberrypi-ts.c
> +++ b/drivers/input/touchscreen/raspberrypi-ts.c
> @@ -102,7 +102,7 @@ static void rpi_ts_poll(struct input_polled_dev *dev)
> released_ids = ts->known_ids & ~modified_ids;
> for_each_set_bit(i, &released_ids, RPI_TS_MAX_SUPPORTED_POINTS) {
> input_mt_slot(input, i);
> - input_mt_report_slot_state(input, MT_TOOL_FINGER, 0);
> + input_mt_report_slot_inactive(input);
> modified_ids &= ~(BIT(i));
> }
> ts->known_ids = modified_ids;
> diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
> index b6f95f20f924..b54cc64e4ea6 100644
> --- a/drivers/input/touchscreen/stmfts.c
> +++ b/drivers/input/touchscreen/stmfts.c
> @@ -198,7 +198,7 @@ static void stmfts_report_contact_release(struct stmfts_data *sdata,
> u8 slot_id = (event[0] & STMFTS_MASK_TOUCH_ID) >> 4;
>
> input_mt_slot(sdata->input, slot_id);
> - input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, false);
> + input_mt_report_slot_inactive(sdata->input);
>
> input_sync(sdata->input);
> }
> diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
> index 9e409bb13642..3b8580bd33c1 100644
> --- a/include/linux/input/mt.h
> +++ b/include/linux/input/mt.h
> @@ -100,6 +100,11 @@ static inline bool input_is_mt_axis(int axis)
> bool input_mt_report_slot_state(struct input_dev *dev,
> unsigned int tool_type, bool active);
>
> +static inline void input_mt_report_slot_inactive(struct input_dev *dev)
> +{
> + input_mt_report_slot_state(dev, 0, false);
> +}
> +
> void input_mt_report_finger_count(struct input_dev *dev, int count);
> void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count);
> void input_mt_drop_unused(struct input_dev *dev);
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