From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S941488AbcKQRPg (ORCPT ); Thu, 17 Nov 2016 12:15:36 -0500 Received: from mail-pg0-f67.google.com ([74.125.83.67]:34680 "EHLO mail-pg0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933271AbcKQRPc (ORCPT ); Thu, 17 Nov 2016 12:15:32 -0500 Date: Thu, 17 Nov 2016 09:15:24 -0800 From: Dmitry Torokhov To: KT Liao Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, phoenix@emc.com.tw, kt.liao@emc.com.tw Subject: Re: [PATCH] Input: elan_i2c - Add new ic and modify some functions for new IC infomation Signed-off-by: KT Liao Message-ID: <20161117171524.GA40773@dtor-ws> References: <1479383263-34546-1-git-send-email-kt.liao@emc.com.tw> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1479383263-34546-1-git-send-email-kt.liao@emc.com.tw> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) > * Author: KT Liao > - * 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