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Date: Thu, 17 Nov 2016 09:15:24 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: KT Liao <ktalex.liao@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
phoenix@....com.tw, kt.liao@....com.tw
Subject: Re: [PATCH] Input: elan_i2c - Add new ic and modify some functions
for new IC infomation Signed-off-by: KT Liao <kt.liao@....com.tw>
Hi KT,
On Thu, Nov 17, 2016 at 07:47:43PM +0800, KT Liao wrote:
> ---
> drivers/input/mouse/elan_i2c.h | 6 ++--
> drivers/input/mouse/elan_i2c_core.c | 46 ++++++++++++++++++--------
> drivers/input/mouse/elan_i2c_i2c.c | 63 ++++++++++++++++++++++++++++++------
> drivers/input/mouse/elan_i2c_smbus.c | 11 +++++--
> 4 files changed, 99 insertions(+), 27 deletions(-)
> mode change 100644 => 100755 drivers/input/mouse/elan_i2c.h
> mode change 100644 => 100755 drivers/input/mouse/elan_i2c_core.c
> mode change 100644 => 100755 drivers/input/mouse/elan_i2c_i2c.c
> mode change 100644 => 100755 drivers/input/mouse/elan_i2c_smbus.c
Why are you changing mode on the files?
>
> diff --git a/drivers/input/mouse/elan_i2c.h b/drivers/input/mouse/elan_i2c.h
> old mode 100644
> new mode 100755
> index c0ec261..a90df14
> --- a/drivers/input/mouse/elan_i2c.h
> +++ b/drivers/input/mouse/elan_i2c.h
> @@ -56,9 +56,10 @@ struct elan_transport_ops {
> int (*get_baseline_data)(struct i2c_client *client,
> bool max_baseliune, u8 *value);
>
> - int (*get_version)(struct i2c_client *client, bool iap, u8 *version);
> + int (*get_version)(struct i2c_client *client,
> + bool iap, u8 *version, u8 pattern);
> int (*get_sm_version)(struct i2c_client *client,
> - u8* ic_type, u8 *version);
> + u16 *ic_type, u8 *version, u8 pattern);
> int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
> int (*get_product_id)(struct i2c_client *client, u16 *id);
>
> @@ -82,6 +83,7 @@ struct elan_transport_ops {
> int (*get_report)(struct i2c_client *client, u8 *report);
> int (*get_pressure_adjustment)(struct i2c_client *client,
> int *adjustment);
> + int (*get_pattern)(struct i2c_client *client, u8 *pattern);
> };
>
> extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;
> diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
> old mode 100644
> new mode 100755
> index d15b338..bb0c832
> --- a/drivers/input/mouse/elan_i2c_core.c
> +++ b/drivers/input/mouse/elan_i2c_core.c
> @@ -5,7 +5,7 @@
> *
> * Author: 林政維 (Duson Lin) <dusonlin@....com.tw>
> * Author: KT Liao <kt.liao@....com.tw>
> - * Version: 1.6.2
> + * Version: 1.6.3
> *
> * Based on cyapa driver:
> * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
> @@ -41,7 +41,7 @@
> #include "elan_i2c.h"
>
> #define DRIVER_NAME "elan_i2c"
> -#define ELAN_DRIVER_VERSION "1.6.2"
> +#define ELAN_DRIVER_VERSION "1.6.3"
> #define ELAN_VENDOR_ID 0x04f3
> #define ETP_MAX_PRESSURE 255
> #define ETP_FWIDTH_REDUCE 90
> @@ -78,6 +78,7 @@ struct elan_tp_data {
> unsigned int x_res;
> unsigned int y_res;
>
> + u8 pattern;
> u16 product_id;
> u8 fw_version;
> u8 sm_version;
> @@ -85,7 +86,7 @@ struct elan_tp_data {
> u16 fw_checksum;
> int pressure_adjustment;
> u8 mode;
> - u8 ic_type;
> + u16 ic_type;
> u16 fw_validpage_count;
> u16 fw_signature_address;
>
> @@ -96,10 +97,10 @@ struct elan_tp_data {
> bool baseline_ready;
> };
>
> -static int elan_get_fwinfo(u8 iap_version, u16 *validpage_count,
> +static int elan_get_fwinfo(u16 ic_type, u16 *validpage_count,
> u16 *signature_address)
> {
> - switch (iap_version) {
> + switch (ic_type) {
> case 0x00:
> case 0x06:
> case 0x08:
> @@ -119,6 +120,9 @@ static int elan_get_fwinfo(u8 iap_version, u16 *validpage_count,
> case 0x0E:
> *validpage_count = 640;
> break;
> + case 0x10:
> + *validpage_count = 1024;
> + break;
> default:
> /* unknown ic type clear value */
> *validpage_count = 0;
> @@ -204,12 +208,17 @@ static int elan_query_product(struct elan_tp_data *data)
> {
> int error;
>
> + error = data->ops->get_pattern(data->client, &data->pattern);
> + if (error)
> + return error;
> +
> error = data->ops->get_product_id(data->client, &data->product_id);
> if (error)
> return error;
>
> error = data->ops->get_sm_version(data->client, &data->ic_type,
> - &data->sm_version);
> + &data->sm_version, data->pattern);
> +
> if (error)
> return error;
>
> @@ -302,9 +311,10 @@ static int elan_initialize(struct elan_tp_data *data)
>
> static int elan_query_device_info(struct elan_tp_data *data)
> {
> - int error;
> + int error, ic_type;
>
> - error = data->ops->get_version(data->client, false, &data->fw_version);
> + error = data->ops->get_version(data->client, false, &data->fw_version,
> + data->pattern);
> if (error)
> return error;
>
> @@ -313,16 +323,23 @@ static int elan_query_device_info(struct elan_tp_data *data)
> if (error)
> return error;
>
> - error = data->ops->get_version(data->client, true, &data->iap_version);
> + error = data->ops->get_version(data->client, true, &data->iap_version,
> + data->pattern);
> if (error)
> return error;
>
> +
> error = data->ops->get_pressure_adjustment(data->client,
> &data->pressure_adjustment);
> if (error)
> return error;
>
> - error = elan_get_fwinfo(data->iap_version, &data->fw_validpage_count,
> + if (data->pattern == 0x01)
> + ic_type = data->ic_type;
> + else
> + ic_type = data->iap_version;
> +
> + error = elan_get_fwinfo(ic_type, &data->fw_validpage_count,
> &data->fw_signature_address);
> if (error)
> dev_warn(&data->client->dev,
> @@ -1093,7 +1110,7 @@ static int elan_probe(struct i2c_client *client,
> if (error)
> return error;
>
> - dev_dbg(&client->dev,
> + dev_info(&client->dev,
> "Elan Touchpad Information:\n"
> " Module product ID: 0x%04x\n"
> " Firmware Version: 0x%04x\n"
> @@ -1101,14 +1118,17 @@ static int elan_probe(struct i2c_client *client,
> " IAP Version: 0x%04x\n"
> " Max ABS X,Y: %d,%d\n"
> " Width X,Y: %d,%d\n"
> - " Resolution X,Y: %d,%d (dots/mm)\n",
> + " Resolution X,Y: %d,%d (dots/mm)\n"
> + " ic type: 0x%x\n"
> + " info pattern: 0x%x\n",
> data->product_id,
> data->fw_version,
> data->sm_version,
> data->iap_version,
> data->max_x, data->max_y,
> data->width_x, data->width_y,
> - data->x_res, data->y_res);
> + data->x_res, data->y_res,
> + data->ic_type, data->pattern);
>
> /* Set up input device properties based on queried parameters. */
> error = elan_setup_input_device(data);
> diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c
> old mode 100644
> new mode 100755
> index a679e56..c108589
> --- a/drivers/input/mouse/elan_i2c_i2c.c
> +++ b/drivers/input/mouse/elan_i2c_i2c.c
> @@ -34,9 +34,12 @@
> #define ETP_I2C_DESC_CMD 0x0001
> #define ETP_I2C_REPORT_DESC_CMD 0x0002
> #define ETP_I2C_STAND_CMD 0x0005
> +#define ETP_I2C_PATTERN_CMD 0x0100
> #define ETP_I2C_UNIQUEID_CMD 0x0101
> #define ETP_I2C_FW_VERSION_CMD 0x0102
> -#define ETP_I2C_SM_VERSION_CMD 0x0103
> +#define ETP_I2C_IC_TYPE_CMD 0x0103
> +#define ETP_I2C_OSM_VERSION_CMD 0x0103
> +#define ETP_I2C_NSM_VERSION_CMD 0x0104
> #define ETP_I2C_XY_TRACENUM_CMD 0x0105
> #define ETP_I2C_MAX_X_AXIS_CMD 0x0106
> #define ETP_I2C_MAX_Y_AXIS_CMD 0x0107
> @@ -240,7 +243,7 @@ static int elan_i2c_get_baseline_data(struct i2c_client *client,
> }
>
> static int elan_i2c_get_version(struct i2c_client *client,
> - bool iap, u8 *version)
> + bool iap, u8 *version, u8 pattern)
> {
> int error;
> u8 val[3];
> @@ -255,24 +258,47 @@ static int elan_i2c_get_version(struct i2c_client *client,
> return error;
> }
>
> - *version = val[0];
> + if (pattern == 0x01)
> + *version = iap ? val[1] : val[0];
> + else
> + *version = val[0];
> return 0;
> }
>
> static int elan_i2c_get_sm_version(struct i2c_client *client,
> - u8 *ic_type, u8 *version)
> + u16 *ic_type, u8 *version, u8 pattern)
> {
> int error;
> u8 val[3];
>
> - error = elan_i2c_read_cmd(client, ETP_I2C_SM_VERSION_CMD, val);
> - if (error) {
> - dev_err(&client->dev, "failed to get SM version: %d\n", error);
> - return error;
> + if (pattern == 0x01) {
> + error = elan_i2c_read_cmd(client, ETP_I2C_IC_TYPE_CMD, val);
> + if (error) {
> + dev_err(&client->dev, "failed to get ic type: %d\n",
> + error);
> + return error;
> + }
> + *ic_type = be16_to_cpup((__be16 *)val);
> +
> + 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;
> + }
> + *version = val[1];
> + } else {
> + error = elan_i2c_read_cmd(client, ETP_I2C_OSM_VERSION_CMD, val);
> + if (error) {
> + dev_err(&client->dev, "failed to get SM version: %d\n",
> + error);
> + return error;
> + }
> + *version = val[0];
> + *ic_type = val[1];
> }
>
> - *version = val[0];
> - *ic_type = val[1];
> return 0;
> }
>
> @@ -611,6 +637,21 @@ static int elan_i2c_get_report(struct i2c_client *client, u8 *report)
> return 0;
> }
>
> +static int elan_i2c_get_pattern(struct i2c_client *client, u8 *pattern)
> +{
> + int error;
> + u8 val[3];
> +
> + error = elan_i2c_read_cmd(client, ETP_I2C_PATTERN_CMD, val);
> + if (error) {
> + dev_err(&client->dev, "failed to get pattern: %d\n", error);
> + return error;
> + }
> + *pattern = val[1];
Is the pattern command available on all firmware versions?
Also, instead of plumbing whole parrent thing, maybe it would be easier
to read it twice, once in elan_i2c_get_version and another in
elan_i2c_get_sm_version?
Thanks.
--
Dmitry
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