linux-kernel - Re: [PATCH] Input: elan_i2c - Support two physical button touchapd for elan

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Date:   Fri, 18 Aug 2017 16:57:15 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     KT Liao <kt.liao@....com.tw>
Cc:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        phoenix@....com.tw
Subject: Re: [PATCH] Input: elan_i2c - Support two physical button touchapd
 for elan_i2c

On Fri, Aug 18, 2017 at 05:47:16PM +0800, KT Liao wrote:
> Extend information accessing to get button setting information
> and support L/R button-pad for I2C touchpad
> 
> Signed-off-by: KT Liao <kt.liao@....com.tw>

Applied, thank you.

> ---
>  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 61c2024..599544c 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 0d111322..59baced 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 80172f2..15b1330 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 df7a57c..29f9952 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;
>  }
>  
> -- 
> 2.7.4
> 

-- 
Dmitry