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Input: elan_i2c - add support for multi IC type and iap format

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In order to support multiple IC types for i2c/smbus protocol, add get ic
type command and use this data when checking firmware page count and
signature address.

Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Duson Lin 2015-06-08 16:39:35 -07:00 committed by Dmitry Torokhov
parent 85919a00e5
commit 12018ac3d6
4 changed files with 49 additions and 11 deletions
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5
drivers/input/mouse/elan_i2c.h
View File

@ -33,9 +33,7 @@
#define ETP_FW_IAP_PAGE_ERR (1 << 5)
#define ETP_FW_IAP_INTF_ERR (1 << 4)
#define ETP_FW_PAGE_SIZE 64
#define ETP_FW_VAILDPAGE_COUNT 768
#define ETP_FW_SIGNATURE_SIZE 6
#define ETP_FW_SIGNATURE_ADDRESS 0xBFFA
struct i2c_client;
struct completion;
@ -58,7 +56,8 @@ struct elan_transport_ops {
bool max_baseliune, u8 *value);
int (*get_version)(struct i2c_client *client, bool iap, u8 *version);
int (*get_sm_version)(struct i2c_client *client, u8 *version);
int (*get_sm_version)(struct i2c_client *client,
u8* ic_type, u8 *version);
int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
int (*get_product_id)(struct i2c_client *client, u8 *id);

45
drivers/input/mouse/elan_i2c_core.c
View File

@ -4,7 +4,7 @@
* Copyright (c) 2013 ELAN Microelectronics Corp.
*
* Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
* Version: 1.5.7
* Version: 1.5.8
*
* Based on cyapa driver:
* copyright (c) 2011-2012 Cypress Semiconductor, Inc.
@ -40,7 +40,7 @@
#include "elan_i2c.h"
#define DRIVER_NAME "elan_i2c"
#define ELAN_DRIVER_VERSION "1.5.7"
#define ELAN_DRIVER_VERSION "1.5.8"
#define ETP_MAX_PRESSURE 255
#define ETP_FWIDTH_REDUCE 90
#define ETP_FINGER_WIDTH 15
@ -83,6 +83,9 @@ struct elan_tp_data {
u16 fw_checksum;
int pressure_adjustment;
u8 mode;
u8 ic_type;
u16 fw_vaildpage_count;
u16 fw_signature_address;
bool irq_wake;
@ -91,6 +94,29 @@ struct elan_tp_data {
bool baseline_ready;
};
static int elan_get_fwinfo(u8 ic_type, u16 *vaildpage_count,
u16 *signature_address)
{
switch(ic_type) {
case 0x09:
*vaildpage_count = 768;
break;
case 0x0D:
*vaildpage_count = 896;
break;
default:
/* unknown ic type clear value */
*vaildpage_count = 0;
*signature_address = 0;
return -ENXIO;
}
*signature_address =
(*vaildpage_count * ETP_FW_PAGE_SIZE) - ETP_FW_SIGNATURE_SIZE;
return 0;
}
static int elan_enable_power(struct elan_tp_data *data)
{
int repeat = ETP_RETRY_COUNT;
@ -221,7 +247,8 @@ static int elan_query_device_info(struct elan_tp_data *data)
if (error)
return error;
error = data->ops->get_sm_version(data->client, &data->sm_version);
error = data->ops->get_sm_version(data->client, &data->ic_type,
&data->sm_version);
if (error)
return error;
@ -234,6 +261,14 @@ static int elan_query_device_info(struct elan_tp_data *data)
if (error)
return error;
error = elan_get_fwinfo(data->ic_type, &data->fw_vaildpage_count,
&data->fw_signature_address);
if (error) {
dev_err(&data->client->dev,
"unknown ic type %d\n", data->ic_type);
return error;
}
return 0;
}
@ -318,7 +353,7 @@ static int __elan_update_firmware(struct elan_tp_data *data,
iap_start_addr = get_unaligned_le16(&fw->data[ETP_IAP_START_ADDR * 2]);
boot_page_count = (iap_start_addr * 2) / ETP_FW_PAGE_SIZE;
for (i = boot_page_count; i < ETP_FW_VAILDPAGE_COUNT; i++) {
for (i = boot_page_count; i < data->fw_vaildpage_count; i++) {
u16 checksum = 0;
const u8 *page = &fw->data[i * ETP_FW_PAGE_SIZE];
@ -454,7 +489,7 @@ static ssize_t elan_sysfs_update_fw(struct device *dev,
}
/* Firmware file must match signature data */
fw_signature = &fw->data[ETP_FW_SIGNATURE_ADDRESS];
fw_signature = &fw->data[data->fw_signature_address];
if (memcmp(fw_signature, signature, sizeof(signature)) != 0) {
dev_err(dev, "signature mismatch (expected %*ph, got %*ph)\n",
(int)sizeof(signature), signature,

4
drivers/input/mouse/elan_i2c_i2c.c
View File

@ -259,7 +259,8 @@ static int elan_i2c_get_version(struct i2c_client *client,
return 0;
}
static int elan_i2c_get_sm_version(struct i2c_client *client, u8 *version)
static int elan_i2c_get_sm_version(struct i2c_client *client,
u8 *ic_type, u8 *version)
{
int error;
u8 val[3];
@ -271,6 +272,7 @@ static int elan_i2c_get_sm_version(struct i2c_client *client, u8 *version)
}
*version = val[0];
*ic_type = val[1];
return 0;
}

6
drivers/input/mouse/elan_i2c_smbus.c
View File

@ -165,7 +165,8 @@ static int elan_smbus_get_version(struct i2c_client *client,
return 0;
}
static int elan_smbus_get_sm_version(struct i2c_client *client, u8 *version)
static int elan_smbus_get_sm_version(struct i2c_client *client,
u8 *ic_type, u8 *version)
{
int error;
u8 val[3];
@ -177,7 +178,8 @@ static int elan_smbus_get_sm_version(struct i2c_client *client, u8 *version)
return error;
}
*version = val[0]; /* XXX Why 0 and not 2 as in IAP/FW versions? */
*version = val[0];
*ic_type = val[1];
return 0;
}