diff options
| author |   KT Liao <ktalex.liao@gmail.com> | 2016-11-27 20:59:29 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-05-11 17:44:23 -0700 |
| commit | a2eaf299d134cfe780c68c771f88d81516c1e70d (patch) | |
| tree | 76c6b5e035fefb17e15d4cfc60bdda871e1be9c0 /drivers/input/mouse/elan_i2c_core.c | |
| parent | Input: elan_i2c - check if device is there before really probing (diff) | |
| download | linux-dev-a2eaf299d134cfe780c68c771f88d81516c1e70d.tar.xz linux-dev-a2eaf299d134cfe780c68c771f88d81516c1e70d.zip | |
Input: elan_i2c - add support for fetching chip type on newer hardware
Newer Elantech hardware requires different way of fetching chip type and
version data.
Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/elan_i2c_core.c')
| -rw-r--r-- | drivers/input/mouse/elan_i2c_core.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 551ad2934fa7..3b616cb7c67f 100644 --- 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@emc.com.tw> * Author: KT Liao <kt.liao@emc.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; @@ -305,6 +309,7 @@ static int elan_initialize(struct elan_tp_data *data) static int elan_query_device_info(struct elan_tp_data *data) { int error; + u16 ic_type; error = data->ops->get_version(data->client, false, &data->fw_version); if (error) @@ -324,7 +329,16 @@ static int elan_query_device_info(struct elan_tp_data *data) if (error) return error; - error = elan_get_fwinfo(data->iap_version, &data->fw_validpage_count, + error = data->ops->get_pattern(data->client, &data->pattern); + if (error) + return error; + + 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, @@ -1108,10 +1122,13 @@ static int elan_probe(struct i2c_client *client, "Elan Touchpad Extra Information:\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->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); |