From 991368818df4a50f50d2ce673b308f946ed635a6 Mon Sep 17 00:00:00 2001 From: KT Liao Date: Fri, 18 Aug 2017 16:49:53 -0700 Subject: [PATCH] Input: elan_i2c - support touchpads with two physical buttons MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Elan touchpads on Asus ROG G752xx series laptops have 2 physical buttons. Luckily we can query the touchpad to see if it is a clickpad variant and adjust the behavior accordingly. Signed-off-by: KT Liao Tested-by: Maxime Bellengé Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elan_i2c.h | 2 +- drivers/input/mouse/elan_i2c_core.c | 9 +++++++-- drivers/input/mouse/elan_i2c_i2c.c | 13 ++++++++++++- drivers/input/mouse/elan_i2c_smbus.c | 4 +++- 4 files changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/input/mouse/elan_i2c.h b/drivers/input/mouse/elan_i2c.h index 61c202436250..599544c1a91c 100644 --- a/drivers/input/mouse/elan_i2c.h +++ b/drivers/input/mouse/elan_i2c.h @@ -58,7 +58,7 @@ struct elan_transport_ops { int (*get_version)(struct i2c_client *client, bool iap, u8 *version); int (*get_sm_version)(struct i2c_client *client, - u16 *ic_type, u8 *version); + u16 *ic_type, u8 *version, u8 *clickpad); int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum); int (*get_product_id)(struct i2c_client *client, u16 *id); diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 3b616cb7c67f..07a9b6db7478 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -95,6 +95,7 @@ struct elan_tp_data { u8 min_baseline; u8 max_baseline; bool baseline_ready; + u8 clickpad; }; static int elan_get_fwinfo(u16 ic_type, u16 *validpage_count, @@ -213,7 +214,7 @@ static int elan_query_product(struct elan_tp_data *data) return error; error = data->ops->get_sm_version(data->client, &data->ic_type, - &data->sm_version); + &data->sm_version, &data->clickpad); if (error) return error; @@ -923,6 +924,7 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet) } input_report_key(input, BTN_LEFT, tp_info & 0x01); + input_report_key(input, BTN_RIGHT, tp_info & 0x02); input_report_abs(input, ABS_DISTANCE, hover_event != 0); input_mt_report_pointer_emulation(input, true); input_sync(input); @@ -991,7 +993,10 @@ static int elan_setup_input_device(struct elan_tp_data *data) __set_bit(EV_ABS, input->evbit); __set_bit(INPUT_PROP_POINTER, input->propbit); - __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + if (data->clickpad) + __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + else + __set_bit(BTN_RIGHT, input->keybit); __set_bit(BTN_LEFT, input->keybit); /* Set up ST parameters */ diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c index 80172f25974d..15b1330606c1 100644 --- a/drivers/input/mouse/elan_i2c_i2c.c +++ b/drivers/input/mouse/elan_i2c_i2c.c @@ -288,7 +288,8 @@ static int elan_i2c_get_version(struct i2c_client *client, } static int elan_i2c_get_sm_version(struct i2c_client *client, - u16 *ic_type, u8 *version) + u16 *ic_type, u8 *version, + u8 *clickpad) { int error; u8 pattern_ver; @@ -317,6 +318,7 @@ static int elan_i2c_get_sm_version(struct i2c_client *client, return error; } *version = val[1]; + *clickpad = val[0] & 0x10; } else { error = elan_i2c_read_cmd(client, ETP_I2C_OSM_VERSION_CMD, val); if (error) { @@ -326,6 +328,15 @@ static int elan_i2c_get_sm_version(struct i2c_client *client, } *version = val[0]; *ic_type = val[1]; + + error = elan_i2c_read_cmd(client, ETP_I2C_NSM_VERSION_CMD, + val); + if (error) { + dev_err(&client->dev, "failed to get SM version: %d\n", + error); + return error; + } + *clickpad = val[0] & 0x10; } return 0; diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c index df7a57ca7331..29f99529b187 100644 --- a/drivers/input/mouse/elan_i2c_smbus.c +++ b/drivers/input/mouse/elan_i2c_smbus.c @@ -166,7 +166,8 @@ static int elan_smbus_get_version(struct i2c_client *client, } static int elan_smbus_get_sm_version(struct i2c_client *client, - u16 *ic_type, u8 *version) + u16 *ic_type, u8 *version, + u8 *clickpad) { int error; u8 val[3]; @@ -180,6 +181,7 @@ static int elan_smbus_get_sm_version(struct i2c_client *client, *version = val[0]; *ic_type = val[1]; + *clickpad = val[0] & 0x10; return 0; } -- 2.39.5