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android-review.linaro.org / kernel / devices / google / felix / refs/heads/android-gs-bluejay-5.10-android14-qpr1 / . / touch / ftm5 / fts.c
blob: daf8863b2cf5f209d462977d0d2d6b9a31905b4c [file] [log] [blame]
/**
* fts.c
*
* FTS Capacitive touch screen controller (FingerTipS)
*
* Copyright (C) 2016, STMicroelectronics Limited.
* Authors: AMG(Analog Mems Group)
*
* marco.cali@st.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THE PRESENT SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES
* OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, FOR THE SOLE
* PURPOSE TO SUPPORT YOUR APPLICATION DEVELOPMENT.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM
* THE CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* THIS SOFTWARE IS SPECIFICALLY DESIGNED FOR EXCLUSIVE USE WITH ST PARTS.
*/
/*!
* \file fts.c
* \brief It is the main file which contains all the most important functions
* generally used by a device driver the driver
*/
#include <linux/device.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/spi/spi.h>
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/of.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/regulator/consumer.h>
#ifdef KERNEL_ABOVE_2_6_38
#include <linux/input/mt.h>
#endif
#include "fts.h"
#include "fts_lib/ftsCompensation.h"
#include "fts_lib/ftsCore.h"
#include "fts_lib/ftsIO.h"
#include "fts_lib/ftsError.h"
#include "fts_lib/ftsFlash.h"
#include "fts_lib/ftsFrame.h"
#include "fts_lib/ftsGesture.h"
#include "fts_lib/ftsTest.h"
#include "fts_lib/ftsTime.h"
#include "fts_lib/ftsTool.h"
/**
* Event handler installer helpers
*/
#define event_id(_e) (EVT_ID_##_e >> 4)
#define handler_name(_h) fts_##_h##_event_handler
#define install_handler(_i, _evt, _hnd) \
do { \
_i->event_dispatch_table[event_id(_evt)] = handler_name(_hnd); \
} while (0)
/* Use decimal-formatted raw data */
#define RAW_DATA_FORMAT_DEC
#ifdef KERNEL_ABOVE_2_6_38
#define TYPE_B_PROTOCOL
#endif
#ifdef GESTURE_MODE
extern struct mutex gestureMask_mutex;
#endif
#ifdef GESTURE_MODE
static u8 mask[GESTURE_MASK_SIZE + 2];
extern u16 gesture_coordinates_x[GESTURE_MAX_COORDS_PAIRS_REPORT];
extern u16 gesture_coordinates_y[GESTURE_MAX_COORDS_PAIRS_REPORT];
extern int gesture_coords_reported;
extern struct mutex gestureMask_mutex;
#endif
static int fts_init_sensing(struct fts_ts_info *info);
static int fts_mode_handler(struct fts_ts_info *info, int force);
static void fts_pinctrl_setup(struct fts_ts_info *info, bool active);
static int fts_chip_initialization(struct fts_ts_info *info, int init_type);
static const struct dev_pm_ops fts_pm_ops;
/**
* Clear touch flags
* @param info pointer to fts_ts_info which contains info about device/hw setup
*/
void clear_touch_flags(struct fts_ts_info *info)
{
info->touch_id = 0;
info->palm_touch_mask = 0;
info->grip_touch_mask = 0;
#ifdef STYLUS_MODE
info->stylus_id = 0;
#endif
}
#if !IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/**
* Release all the touches in the linux input subsystem
* @param info pointer to fts_ts_info which contains info about device/hw setup
*/
void release_all_touches(struct fts_ts_info *info)
{
unsigned int type = MT_TOOL_FINGER;
int i;
mutex_lock(&info->input_report_mutex);
for (i = 0; i < TOUCH_ID_MAX; i++) {
#ifdef STYLUS_MODE
if (test_bit(i, &info->stylus_id))
type = MT_TOOL_PEN;
else
type = MT_TOOL_FINGER;
#endif
input_mt_slot(info->input_dev, i);
input_report_abs(info->input_dev, ABS_MT_PRESSURE, 0);
input_mt_report_slot_state(info->input_dev, type, 0);
input_report_abs(info->input_dev, ABS_MT_TRACKING_ID, -1);
}
input_report_key(info->input_dev, BTN_TOUCH, 0);
input_sync(info->input_dev);
mutex_unlock(&info->input_report_mutex);
clear_touch_flags(info);
}
#endif
/**
* @defgroup file_nodes Driver File Nodes
* Driver publish a series of file nodes used to provide several utilities
* to the host and give him access to different API.
* @{
*/
/**
* @defgroup device_file_nodes Device File Nodes
* @ingroup file_nodes
* Device File Nodes \n
* There are several file nodes that are associated to the device and which
* are designed to be used by the host to enable/disable features or trigger
* some system specific actions \n
* Usually their final path depend on the definition of device tree node of
* the IC (e.g /sys/devices/soc.0/f9928000.i2c/i2c-6/6-0049)
* @{
*/
/***************************************** FW UPGGRADE
* ***************************************************/
/**
* File node function to Update firmware from shell \n
* echo path_to_fw X Y > fwupdate perform a fw update \n
* where: \n
* path_to_fw = file name or path of the the FW to burn, if "NULL" the default
* approach selected in the driver will be used\n
* X = 0/1 to force the FW update whichever fw_version and config_id;
* 0=perform a fw update only if the fw in the file is newer than the fw in the
* chip \n
* Y = 0/1 keep the initialization data; 0 = will erase the initialization data
* from flash, 1 = will keep the initialization data
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error code (00000000 no
* error) \n
* } = end byte
*/
static ssize_t fwupdate_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int ret;
/* default(if not specified by user) set force = 0 and keep_cx to 1 */
int force = 0;
int keep_cx = CX_KEEP;
char path[100 + 1]; /* extra byte to hold '\0'*/
struct fts_ts_info *info = dev_get_drvdata(dev);
/* reading out firmware upgrade parameters */
if (sscanf(buf, "%100s %d %d", path, &force, &keep_cx) >= 1) {
dev_info(dev, "%s: file = %s, force = %d, keep_cx = %d\n", __func__,
path, force, keep_cx);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_pm_wake_lock(info->gti, GTI_PM_WAKELOCK_TYPE_FW_UPDATE, false);
#endif
if (info->sensor_sleep)
ret = ERROR_BUS_WR;
else {
#ifdef COMPUTE_INIT_METHOD
if (keep_cx == CX_ERASE) {
fts_system_reset(info);
flushFIFO(info);
/* Set MPFlag to MP_FLAG_NEED_FPI since we will overwrite MS CX and
* SS IX by firmware golden value (if exist).
*/
ret = saveMpFlag(info, MP_FLAG_NEED_FPI);
if (ret < OK)
dev_err(info->dev,
"Error while saving MP FLAG! ERROR %08X\n", ret);
else
dev_info(info->dev, "MP FLAG saving OK!\n");
}
#endif
ret = flashProcedure(info, path, force, keep_cx);
}
info->fwupdate_stat = ret;
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_pm_wake_unlock(info->gti, GTI_PM_WAKELOCK_TYPE_FW_UPDATE);
#endif
if (ret == ERROR_BUS_WR)
dev_err(dev, "%s: bus is not accessible. ERROR %08X\n",
__func__, ret);
else if (ret < OK)
dev_err(dev, "%s Unable to upgrade firmware! ERROR %08X\n",
__func__, ret);
} else
dev_err(dev, "%s: Wrong number of parameters! ERROR %08X\n",
__func__, ERROR_OP_NOT_ALLOW);
return count;
}
static ssize_t fwupdate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
/* fwupdate_stat: ERROR code Returned by flashProcedure. */
return scnprintf(buf, PAGE_SIZE, "{ %08X }\n", info->fwupdate_stat);
}
/***************************************** UTILITIES
* (current fw_ver/conf_id, active mode, file fw_ver/conf_id)
***************************************************/
static ssize_t get_fw_info(struct fts_ts_info *info, char *buf, size_t buf_size)
{
ssize_t buf_idx = 0;
char temp[35];
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"\nREL: %s\n",
printHex("",
info->systemInfo.u8_releaseInfo,
EXTERNAL_RELEASE_INFO_SIZE,
temp,
sizeof(temp)));
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"FW: %04X\nCFG: %04X\nAFE: %02X\nProject: %04X\n",
info->systemInfo.u16_fwVer,
info->systemInfo.u16_cfgVer,
info->systemInfo.u8_cfgAfeVer,
info->systemInfo.u16_cfgProjectId);
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"FW file: %s\n", info->board->fw_name);
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"Extended display info: ");
if (!info->extinfo.is_read)
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"[pending]");
else if (info->extinfo.size == 0)
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"[none]");
else if (info->extinfo.size * 2 < buf_size - buf_idx) {
bin2hex(buf + buf_idx, info->extinfo.data, info->extinfo.size);
buf_idx += info->extinfo.size * 2;
}
buf_idx += scnprintf(buf + buf_idx, buf_size - buf_idx,
"\nMPFlag: %02X\n",
info->systemInfo.u8_mpFlag);
return buf_idx;
}
/**
* File node to show on terminal external release version in Little Endian \n
* (first the less significant byte) \n
* cat appid show the external release version of the FW running in the IC
*/
static ssize_t appid_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
ssize_t buf_idx = get_fw_info(info, buf, PAGE_SIZE);
return buf_idx;
}
/**
* File node to show on terminal the mode that is active on the IC \n
* cat mode_active to show the bitmask which indicate
* the modes/features which are running on the IC in a specific instant of time
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1 = 1 byte in HEX format which represent the actual running scan mode
* (@link scan_opt Scan Mode Options @endlink) \n
* X2 = 1 byte in HEX format which represent the bitmask on which is running
* the actual scan mode \n
* X3X4 = 2 bytes in HEX format which represent a bitmask of the features that
* are enabled at this moment (@link feat_opt Feature Selection Options
* @endlink) \n
* } = end byte
* @see fts_mode_handler()
*/
static ssize_t mode_active_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "Current mode active = %08X\n", info->mode);
return scnprintf(buf, PAGE_SIZE, "{ %08X }\n", info->mode);
}
/**
* File node to show the fw_ver and config_id of the FW file
* cat fw_file_test show on the kernel log external release
* of the FW stored in the fw file/header file
*/
static ssize_t fw_file_test_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
Firmware fw;
int ret;
char temp[100] = { 0 };
fw.data = NULL;
ret = readFwFile(info, info->board->fw_name, &fw, 0);
if (ret < OK)
dev_err(dev, "Error during reading FW file! ERROR %08X\n", ret);
else
dev_info(dev, "%s, size = %d bytes\n",
printHex("EXT Release = ",
info->systemInfo.u8_releaseInfo,
EXTERNAL_RELEASE_INFO_SIZE,
temp,
sizeof(temp)),
fw.data_size);
kfree(fw.data);
return 0;
}
static ssize_t status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
u8 *dump = NULL;
int dumpSize = ERROR_DUMP_ROW_SIZE * ERROR_DUMP_COL_SIZE;
u8 reg;
int written = 0;
int res;
int i;
written += scnprintf(buf + written, PAGE_SIZE - written,
"Mode: 0x%08X\n", info->mode);
res = fts_writeReadU8UX(info, FTS_CMD_HW_REG_R, ADDR_SIZE_HW_REG,
ADDR_ICR, &reg, 1, DUMMY_HW_REG);
if (res < 0)
dev_err(dev, "%s: failed to read ICR.\n", __func__);
else
written += scnprintf(buf + written, PAGE_SIZE - written,
"ICR: 0x%02X\n", reg);
dump = kzalloc(dumpSize, GFP_KERNEL);
if (!dump) {
written += strlcat(buf + written, "Buffer allocation failed!\n",
PAGE_SIZE - written);
goto exit;
}
res = dumpErrorInfo(info, dump,
ERROR_DUMP_ROW_SIZE * ERROR_DUMP_COL_SIZE);
if (res >= 0) {
written += strlcat(buf + written, "Error dump:",
PAGE_SIZE - written);
for (i = 0; i < dumpSize; i++) {
if (i % 8 == 0)
written += scnprintf(buf + written,
PAGE_SIZE - written,
"\n%02X: ", i);
written += scnprintf(buf + written,
PAGE_SIZE - written,
"%02X ", dump[i]);
}
written += strlcat(buf + written, "\n", PAGE_SIZE - written);
}
exit:
kfree(dump);
return written;
}
#if 0
/**
* File node to obtain and show strength frame
* cat strength_frame to obtain strength data \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error code (00000000 no
*error) \n
* **** if error code is all 0s **** \n
* FF = 1 byte in HEX format number of rows \n
* SS = 1 byte in HEX format number of columns \n
* N1, ... = the decimal value of each node separated by a coma \n
* ********************************* \n
* } = end byte
*/
static ssize_t fts_strength_frame_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
MutualSenseFrame frame;
int res, count, j, size = (6 * 2) + 1, index = 0;
char *all_strbuff = NULL;
/* char buff[CMD_STR_LEN] = {0}; */
/* struct i2c_client *client = to_i2c_client(dev); */
struct fts_ts_info *info = dev_get_drvdata(dev);
size_t buf_size = 0;
frame.node_data = NULL;
res = fts_enableInterrupt(info, false);
if (res < OK)
goto END;
res = senseOn(info);
if (res < OK) {
dev_err(dev, "%s: could not start scanning! ERROR %08X\n",
__func__, res);
goto END;
}
mdelay(WAIT_FOR_FRESH_FRAMES);
res = senseOff(info);
if (res < OK) {
dev_err(dev, "%s: could not finish scanning! ERROR %08X\n",
__func__, res);
goto END;
}
mdelay(WAIT_AFTER_SENSEOFF);
flushFIFO(info);
res = getMSFrame3(info, MS_STRENGTH, &frame);
if (res < OK) {
dev_err(dev, "%s: could not get the frame! ERROR %08X\n",
__func__, res);
goto END;
} else {
size += (res * 6);
dev_info(dev, "The frame size is %d words\n", res);
res = OK;
print_frame_short(info, "MS Strength frame =",
array1dTo2d_short(
frame.node_data, frame.node_data_size,
frame.header.sense_node),
frame.header.force_node,
frame.header.sense_node);
}
END:
flushFIFO(info);
release_all_touches(info);
fts_mode_handler(info, 1);
buf_size = size * sizeof(char);
all_strbuff = (char *)kzalloc(buf_size, GFP_KERNEL);
if (all_strbuff != NULL) {
index += scnprintf(all_strbuff + index, buf_size - index, "{ %08X", res);
if (res >= OK) {
index += scnprintf(all_strbuff + index, buf_size - index, "%02X",
(u8)frame.header.force_node);
index += scnprintf(all_strbuff + index, buf_size - index, "%02X",
(u8)frame.header.sense_node);
for (j = 0; j < frame.node_data_size; j++) {
index += scnprintf(all_strbuff + index, buf_size - index, "%d,%n",
frame.node_data[j], &count);
}
kfree(frame.node_data);
}
index += scnprintf(all_strbuff + index, buf_size - index, " }");
count = scnprintf(buf, TSP_BUF_SIZE, "%s\n", all_strbuff);
kfree(all_strbuff);
} else
dev_err(dev, "%s: Unable to allocate all_strbuff! ERROR %08X\n",
__func__, ERROR_ALLOC);
fts_enableInterrupt(info, true);
return count;
}
#endif
/***************************************** FEATURES
***************************************************/
/* TODO: edit this function according to the features policy to allow during
* the screen on/off, following is shown an example but check always with ST
* for more details */
/**
* Check if there is any conflict in enable/disable a particular feature
* considering the features already enabled and running
* @param info pointer to fts_ts_info which contains info about the device
* and its hw setup
* @param feature code of the feature that want to be tested
* @return OK if is possible to enable/disable feature, ERROR_OP_NOT_ALLOW
* in case of any other conflict
*/
int check_feature_feasibility(struct fts_ts_info *info, unsigned int feature)
{
int res = OK;
/* Example based on the status of the screen and on the feature
* that is trying to enable */
/*res=ERROR_OP_NOT_ALLOW;
* if(info->resume_bit ==0){
* switch(feature){
#ifdef GESTURE_MODE
* case FEAT_SEL_GESTURE:
* res = OK;
* break;
#endif
* default:
* dev_err(dev, "%s: Feature not allowed in this
* operating mode! ERROR %08X\n", __func__, res);
* break;
*
* }
* }else{
* switch(feature){
#ifdef GESTURE_MODE
* case FEAT_SEL_GESTURE:
#endif
* case FEAT__SEL_GLOVE: // glove mode can only activate
*during sense on
* res = OK;
* break;
*
* default:
* dev_err(dev, "%s: Feature not allowed in this
* operating mode! ERROR %08X\n", __func__, res);
* break;
*
* }
* }*/
/* Example based only on the feature that is going to be activated */
switch (feature) {
case FEAT_SEL_GESTURE:
if (info->cover_enabled == 1) {
res = ERROR_OP_NOT_ALLOW;
dev_err(info->dev, "%s: Feature not allowed when in Cover mode! ERROR %08X\n",
__func__, res);
/* for example here can be placed a code for disabling
* the cover mode when gesture is activated */
}
break;
case FEAT_SEL_GLOVE:
if (info->gesture_enabled == 1) {
res = ERROR_OP_NOT_ALLOW;
dev_err(info->dev, "%s: Feature not allowed when Gestures enabled! ERROR %08X\n",
__func__, res);
/* for example here can be placed a code for disabling
* the gesture mode when cover is activated
* (that means that cover mode has
* an higher priority on gesture mode) */
}
break;
default:
dev_info(info->dev, "%s: Feature Allowed!\n", __func__);
}
return res;
}
#ifdef USE_ONE_FILE_NODE
/**
* File node to enable some feature
* echo XX 00/01 > feature_enable to enable/disable XX
* (possible values @link feat_opt Feature Selection Options @endlink) feature
* cat feature_enable to show the result of enabling/disabling process
* echo 01/00 > feature_enable; cat feature_enable to perform
* both actions stated before in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error code (00000000 =
* no error) \n
* } = end byte
*/
static ssize_t feature_enable_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
char *p = (char *)buf;
unsigned int temp, temp2;
int res = OK;
if ((count - 2 + 1) / 3 != 1)
dev_err(dev, "fts_feature_enable: Number of parameter wrong! %d > %d\n",
(count - 2 + 1) / 3, 1);
else {
if (sscanf(p, "%02X %02X ", &temp, &temp2) == 2) {
p += 3;
res = check_feature_feasibility(info, temp);
if (res >= OK) {
switch (temp) {
#ifdef GESTURE_MODE
case FEAT_SEL_GESTURE:
info->gesture_enabled = temp2;
dev_info(dev, "fts_feature_enable: Gesture Enabled = %d\n",
info->gesture_enabled);
break;
#endif
#ifdef GLOVE_MODE
case FEAT_SEL_GLOVE:
info->glove_enabled = temp2;
dev_info(dev, "fts_feature_enable: Glove Enabled = %d\n",
info->glove_enabled);
break;
#endif
#ifdef STYLUS_MODE
case FEAT_SEL_STYLUS:
info->stylus_enabled = temp2;
dev_info(dev, "fts_feature_enable: Stylus Enabled = %d\n",
info->stylus_enabled);
break;
#endif
#ifdef COVER_MODE
case FEAT_SEL_COVER:
info->cover_enabled = temp2;
dev_info(dev, "fts_feature_enable: Cover Enabled = %d\n",
info->cover_enabled);
break;
#endif
#ifdef CHARGER_MODE
case FEAT_SEL_CHARGER:
info->charger_enabled = temp2;
dev_info(dev, "fts_feature_enable: Charger Enabled = %d\n",
info->charger_enabled);
break;
#endif
#ifdef GRIP_MODE
case FEAT_SEL_GRIP:
info->grip_enabled = temp2;
dev_info(dev, "fts_feature_enable: Grip Enabled = %d\n",
info->grip_enabled);
break;
#endif
default:
dev_err(dev, "fts_feature_enable: Feature %08X not valid! ERROR %08X\n",
temp, ERROR_OP_NOT_ALLOW);
res = ERROR_OP_NOT_ALLOW;
}
info->feature_feasibility = res;
}
if (info->feature_feasibility >= OK)
info->feature_feasibility = fts_mode_handler(info, 1);
else
dev_err(dev, "%s: Call echo XX 00/01 > feature_enable with a correct feature value (XX)! ERROR %08X\n",
__func__, res);
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
static ssize_t feature_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
if (info->feature_feasibility < OK)
dev_err(dev, "%s: Call before echo XX 00/01 > feature_enable with a correct feature value (XX)! ERROR %08X\n",
__func__, info->feature_feasibility);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->feature_feasibility);
info->feature_feasibility = ERROR_OP_NOT_ALLOW;
return count;
}
#else
#ifdef GRIP_MODE
/**
* File node to set the grip mode
* echo 01/00 > grip_mode to enable/disable glove mode \n
* cat grip_mode to show the status of the grip_enabled switch \n
* echo 01/00 > grip_mode; cat grip_mode to enable/disable grip
*mode
* and see the switch status in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent the value
* info->grip_enabled (1 = enabled; 0= disabled) \n
* } = end byte
*/
static ssize_t grip_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: grip_enabled = %d\n", __func__,
info->grip_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->grip_enabled);
return count;
}
static ssize_t grip_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
char *p = (char *)buf;
unsigned int temp;
int res;
struct fts_ts_info *info = dev_get_drvdata(dev);
/* in case of a different elaboration of the input, just modify
* this initial part of the code according to customer needs */
if ((count + 1) / 3 != 1)
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu != 1 byte\n",
__func__, (count + 1) / 3);
else {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
/* standard code that should be always used when a feature is enabled! */
/* first step : check if the wanted feature can be enabled */
/* second step: call fts_mode_handler to actually enable it */
/* NOTE: Disabling a feature is always allowed by default */
res = check_feature_feasibility(info, FEAT_SEL_GRIP);
if (res >= OK || temp == FEAT_DISABLE) {
info->grip_enabled = temp;
res = fts_mode_handler(info, 1);
if (res < OK)
dev_err(dev, "%s: Error during fts_mode_handler! ERROR %08X\n",
__func__, res);
}
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
#endif
#ifdef CHARGER_MODE
/**
* File node to set the glove mode
* echo XX/00 > charger_mode to value >0 to enable
* (possible values: @link charger_opt Charger Options @endlink),
* 00 to disable charger mode \n
* cat charger_mode to show the status of the charger_enabled switch \n
* echo 01/00 > charger_mode; cat charger_mode to enable/disable
* charger mode and see the switch status in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent the value
* info->charger_enabled (>0 = enabled; 0= disabled) \n
* } = end byte
*/
static ssize_t charger_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: charger_enabled = %d\n", __func__,
info->charger_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->charger_enabled);
return count;
}
static ssize_t charger_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
char *p = (char *)buf;
unsigned int temp;
int res;
struct fts_ts_info *info = dev_get_drvdata(dev);
/* in case of a different elaboration of the input, just modify this
* initial part of the code according to customer needs */
if ((count + 1) / 3 != 1)
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu != 1 byte\n",
__func__, (count + 1) / 3);
else {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
/** standard code that should be always used when a feature is enabled!
* first step : check if the wanted feature can be enabled
* second step: call fts_mode_handler to actually enable it
* NOTE: Disabling a feature is always allowed by default
*/
res = check_feature_feasibility(info, FEAT_SEL_CHARGER);
if (res >= OK || temp == FEAT_DISABLE) {
info->charger_enabled = temp;
res = fts_mode_handler(info, 1);
if (res < OK)
dev_err(dev, "%s: Error during fts_mode_handler! ERROR %08X\n",
__func__, res);
}
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
#endif
#ifdef GLOVE_MODE
/**
* File node to set the glove mode
* echo 01/00 > glove_mode to enable/disable glove mode \n
* cat glove_mode to show the status of the glove_enabled switch \n
* echo 01/00 > glove_mode; cat glove_mode to enable/disable glove mode and
* see the switch status in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent the of value
* info->glove_enabled (1 = enabled; 0= disabled) \n
* } = end byte
*/
static ssize_t glove_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: glove_enabled = %d\n", __func__, info->glove_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->glove_enabled);
return count;
}
static ssize_t glove_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
char *p = (char *)buf;
unsigned int temp;
int res;
struct fts_ts_info *info = dev_get_drvdata(dev);
/* in case of a different elaboration of the input, just modify this
* initial part of the code according to customer needs */
if ((count + 1) / 3 != 1)
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu != 1 byte\n",
__func__, (count + 1) / 3);
else {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
/* standard code that should be always used when a feature is enabled! */
/* first step : check if the wanted feature can be enabled */
/* second step: call fts_mode_handler to actually enable it */
/* NOTE: Disabling a feature is always allowed by default */
res = check_feature_feasibility(info, FEAT_SEL_GLOVE);
if (res >= OK || temp == FEAT_DISABLE) {
info->glove_enabled = temp;
res = fts_mode_handler(info, 1);
if (res < OK)
dev_err(dev, "%s: Error during fts_mode_handler! ERROR %08X\n",
__func__, res);
}
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
#endif
#ifdef COVER_MODE
/* echo 01/00 > cover_mode to enable/disable cover mode */
/* cat cover_mode to show the status of the cover_enabled switch
* (example output in the terminal = "AA00000001BB" if the switch is enabled) */
/* echo 01/00 > cover_mode; cat cover_mode to enable/disable cover mode and
* see the switch status in just one call */
/* NOTE: the cover can be handled also using a notifier, in this case the body
* of these functions should be copied in the notifier callback */
/**
* File node to set the cover mode
* echo 01/00 > cover_mode to enable/disable cover mode \n
* cat cover_mode to show the status of the cover_enabled switch \n
* echo 01/00 > cover_mode; cat cover_mode to enable/disable cover mode
* and see the switch status in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which is the value of info->cover_enabled
* (1 = enabled; 0= disabled)\n
* } = end byte \n
* NOTE: \n
* the cover can be handled also using a notifier, in this case the body of
* these functions should be copied in the notifier callback
*/
static ssize_t cover_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: cover_enabled = %d\n", __func__, info->cover_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->cover_enabled);
return count;
}
static ssize_t cover_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
char *p = (char *)buf;
unsigned int temp;
int res;
struct fts_ts_info *info = dev_get_drvdata(dev);
/* in case of a different elaboration of the input, just modify this
* initial part of the code according to customer needs */
if ((count + 1) / 3 != 1)
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu != 1 byte\n",
__func__, (count + 1) / 3);
else {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
/* standard code that should be always used when a feature is enabled! */
/* first step : check if the wanted feature can be enabled */
/* second step: call fts_mode_handler to actually enable it */
/* NOTE: Disabling a feature is always allowed by default */
res = check_feature_feasibility(info, FEAT_SEL_COVER);
if (res >= OK || temp == FEAT_DISABLE) {
info->cover_enabled = temp;
res = fts_mode_handler(info, 1);
if (res < OK)
dev_err(dev, "%s: Error during fts_mode_handler! ERROR %08X\n",
__func__, res);
}
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
#endif
#ifdef STYLUS_MODE
/**
* File node to enable the stylus report
* echo 01/00 > stylus_mode to enable/disable stylus mode \n
* cat stylus_mode to show the status of the stylus_enabled switch \n
* echo 01/00 > stylus_mode; cat stylus_mode to enable/disable stylus mode
* and see the switch status in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which is the value of info->stylus_enabled
* (1 = enabled; 0= disabled)\n
* } = end byte
*/
static ssize_t stylus_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: stylus_enabled = %d\n", __func__, info->stylus_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->stylus_enabled);
return count;
}
static ssize_t stylus_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
char *p = (char *)buf;
unsigned int temp;
struct fts_ts_info *info = dev_get_drvdata(dev);
/* in case of a different elaboration of the input, just modify this
* initial part of the code according to customer needs */
if ((count + 1) / 3 != 1)
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu != 1 byte\n",
__func__, (count + 1) / 3);
else {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
info->stylus_enabled = temp;
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
return count;
}
#endif
#endif
/***************************************** GESTURES
***************************************************/
#ifdef GESTURE_MODE
#ifdef USE_GESTURE_MASK /* if this define is used, a gesture bit mask
* is used as method to select the gestures to
* enable/disable */
/**
* File node used by the host to set the gesture mask to enable or disable
* echo EE X1 X2 ~~ > gesture_mask set the gesture to disable/enable;
* EE = 00(disable) or 01(enable) \n
* X1 ~~ = gesture mask (example 06 00 ~~ 00 this gesture mask represents
* the gestures with ID = 1 and 2) can be specified
* from 1 to GESTURE_MASK_SIZE bytes, \n
* if less than GESTURE_MASK_SIZE bytes are passed as arguments,
* the omit bytes of the mask maintain the previous settings \n
* if one or more gestures is enabled the driver will automatically
* enable the gesture mode, If all the gestures are disabled the driver
* automatically will disable the gesture mode \n
* cat gesture_mask set inside the specified mask and return an error code
* for the operation \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error code for enabling
* the mask (00000000 = no error)\n
* } = end byte \n\n
* if USE_GESTURE_MASK is not define the usage of the function become: \n\n
* echo EE X1 X2 ~~ > gesture_mask set the gesture to disable/enable;
* EE = 00(disable) or 01(enable) \n
* X1 ~~ = gesture IDs (example 01 02 05 represent the gestures with ID = 1, 2
* and 5)
* there is no limit of the IDs passed as arguments, (@link gesture_opt Gesture
* IDs @endlink) \n
* if one or more gestures is enabled the driver will automatically enable
* the gesture mode. If all the gestures are disabled the driver automatically
* will disable the gesture mode. \n
* cat gesture_mask to show the status of the gesture enabled switch \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which is the value of info->gesture_enabled
* (1 = enabled; 0= disabled)\n
* } = end byte
*/
static ssize_t gesture_mask_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0, res, temp;
struct fts_ts_info *info = dev_get_drvdata(dev);
if (mask[0] == 0) {
res = ERROR_OP_NOT_ALLOW;
dev_err(dev, "%s: Call before echo enable/disable xx xx .... > gesture_mask with a correct number of parameters! ERROR %08X\n",
__func__, res);
} else {
if (mask[1] == FEAT_ENABLE || mask[1] == FEAT_DISABLE)
res = updateGestureMask(&mask[2], mask[0], mask[1]);
else
res = ERROR_OP_NOT_ALLOW;
if (res < OK)
dev_err(dev, "%s: ERROR %08X\n", __func__, res);
}
res |= check_feature_feasibility(info, FEAT_SEL_GESTURE);
temp = isAnyGestureActive();
if (res >= OK || temp == FEAT_DISABLE)
info->gesture_enabled = temp;
dev_info(dev, "%s: Gesture Enabled = %d\n", __func__,
info->gesture_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n", res);
mask[0] = 0;
return count;
}
static ssize_t gesture_mask_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
char *p = (char *)buf;
int n;
unsigned int temp;
if ((count + 1) / 3 > GESTURE_MASK_SIZE + 1) {
dev_err(dev, "%s: Number of bytes of parameter wrong! %zu > (enable/disable + %d )\n",
__func__, (count + 1) / 3, GESTURE_MASK_SIZE);
mask[0] = 0;
} else {
mask[0] = ((count + 1) / 3) - 1;
for (n = 1; n <= (count + 1) / 3; n++) {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
mask[n] = (u8)temp;
dev_info(dev, "mask[%d] = %02X\n", n, mask[n]);
} else
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
}
}
return count;
}
#else /* if this define is not used, to select the gestures to enable/disable
* are used the IDs of the gestures */
/* echo EE X1 X2 ... > gesture_mask set the gesture to disable/enable;
* EE = 00(disable) or 01(enable); X1 ... = gesture IDs
* (example 01 02 05... represent the gestures with ID = 1, 2 and 5)
* there is no limit of the parameters that can be passed,
* of course the gesture IDs should be valid (all the valid IDs are listed in
* ftsGesture.h) */
/* cat gesture_mask enable/disable the given gestures, if one or more
* gestures is enabled the driver will automatically enable the gesture mode.
* If all the gestures are disabled the driver automatically will disable the
* gesture mode.
* At the end an error code will be printed
* (example output in the terminal = "AA00000000BB" if there are no errors) */
/* echo EE X1 X2 ... > gesture_mask; cat gesture_mask perform in one command
* both actions stated before */
/**
* File node used by the host to set the gesture mask to enable or disable
* echo EE X1 X2 ~~ > gesture_mask set the gesture to disable/enable;
* EE = 00(disable) or 01(enable) \n
* X1 ~ = gesture IDs (example 01 02 05 represent the gestures with ID = 1, 2
* and 5)
* there is no limit of the IDs passed as arguments, (@link gesture_opt Gesture
* IDs @endlink) \n
* if one or more gestures is enabled the driver will automatically enable
* the gesture mode, If all the gestures are disabled the driver automatically
* will disable the gesture mode \n
* cat gesture_mask to show the status of the gesture enabled switch \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which is the value of info->gesture_enabled
* (1 = enabled; 0= disabled)\n
* } = end byte
*/
static ssize_t gesture_mask_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count = 0;
struct fts_ts_info *info = dev_get_drvdata(dev);
dev_info(dev, "%s: gesture_enabled = %d\n", __func__,
info->gesture_enabled);
count += scnprintf(buf + count,
PAGE_SIZE - count, "{ %08X }\n",
info->gesture_enabled);
return count;
}
static ssize_t gesture_mask_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
char *p = (char *)buf;
int n;
unsigned int temp;
int res;
struct fts_ts_info *info = dev_get_drvdata(dev);
if ((count + 1) / 3 < 2 || (count + 1) / 3 > GESTURE_MASK_SIZE + 1) {
dev_err(dev, "%s: Number of bytes of parameter wrong! %d < or > (enable/disable + at least one gestureID or max %d bytes)\n",
__func__, (count + 1) / 3, GESTURE_MASK_SIZE);
mask[0] = 0;
} else {
memset(mask, 0, GESTURE_MASK_SIZE + 2);
mask[0] = ((count + 1) / 3) - 1;
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
mask[1] = (u8)temp;
for (n = 1; n < (count + 1) / 3; n++) {
if (sscanf(p, "%02X ", &temp) == 1) {
p += 3;
fromIDtoMask((u8)temp, &mask[2],
GESTURE_MASK_SIZE);
} else {
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
mask[0] = 0;
goto END;
}
}
for (n = 0; n < GESTURE_MASK_SIZE + 2; n++)
dev_info(dev, "mask[%d] = %02X\n", n, mask[n]);
} else {
dev_err(dev, "%s: Error when reading with sscanf!\n",
__func__);
mask[0] = 0;
}
}
END:
if (mask[0] == 0) {
res = ERROR_OP_NOT_ALLOW;
dev_err(dev, "%s: Call before echo enable/disable xx xx .... > gesture_mask with a correct number of parameters! ERROR %08X\n",
__func__, res);
} else {
if (mask[1] == FEAT_ENABLE || mask[1] == FEAT_DISABLE)
res = updateGestureMask(&mask[2], mask[0], mask[1]);
else
res = ERROR_OP_NOT_ALLOW;
if (res < OK)
dev_err(dev, "%s: ERROR %08X\n", __func__, res);
}
res = check_feature_feasibility(info, FEAT_SEL_GESTURE);
temp = isAnyGestureActive();
if (res >= OK || temp == FEAT_DISABLE)
info->gesture_enabled = temp;
res = fts_mode_handler(info, 0);
return count;
}
#endif
/**
* File node to read the coordinates of the last gesture drawn by the user \n
* cat gesture_coordinates to obtain the gesture coordinates \n
* the string returned in the shell follow this up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error code (00000000 =
*OK) \n
* \n if error code = 00000000 \n
* CC = 1 byte in HEX format number of coords (pair of x,y) returned \n
* XXiYYi ... = XXi 2 bytes in HEX format for x[i] and
* YYi 2 bytes in HEX format for y[i] (big endian) \n
* \n
* } = end byte
*/
static ssize_t gesture_coordinates_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int size = PAGE_SIZE;
int count = 0, res, i = 0;
dev_info(dev, "%s: Getting gestures coordinates...\n", __func__);
if (gesture_coords_reported < OK) {
dev_err(dev, "%s: invalid coordinates! ERROR %08X\n",
__func__, gesture_coords_reported);
res = gesture_coords_reported;
} else {
size += gesture_coords_reported * 2 * 4 + 2;
/* coords are pairs of x,y (*2) where each coord is
* short(2bytes=4char)(*4) + 1 byte(2char) num of coords (+2)
**/
res = OK; /* set error code to OK */
}
count += scnprintf(buf + count,
size - count, "{ %08X", res);
if (res >= OK) {
count += scnprintf(buf + count,
size - count, "%02X",
gesture_coords_reported);
for (i = 0; i < gesture_coords_reported; i++) {
count += scnprintf(buf + count,
size - count,
"%04X",
gesture_coordinates_x[i]);
count += scnprintf(buf + count,
size - count,
"%04X",
gesture_coordinates_y[i]);
}
}
count += scnprintf(buf + count, size - count, " }\n");
dev_info(dev, "%s: Getting gestures coordinates FINISHED!\n", __func__);
return count;
}
#endif
/***************************************** PRODUCTION TEST
***************************************************/
/**
* File node to execute the Mass Production Test or to get data from the IC
* (raw or ms/ss init data)
* echo cmd > stm_fts_cmd to execute a command \n
* cat stm_fts_cmd to show the result of the command \n
* echo cmd > stm_fts_cmd; cat stm_fts_cmd to execute and show the result
* in just one call \n
* the string returned in the shell is made up as follow: \n
* { = start byte \n
* X1X2X3X4 = 4 bytes in HEX format which represent an error_code (00000000 =
* OK)\n
* (optional) data = data coming from the command executed represented as HEX
* string \n
* Not all the command return additional data \n
* } = end byte \n
* \n
* Possible commands (cmd): \n
* - 00 = MP Test -> return error_code \n
* - 01 = ITO Test -> return error_code \n
* - 03 = MS Raw Test -> return error_code \n
* - 04 = MS Init Data Test -> return error_code \n
* - 05 = SS Raw Test -> return error_code \n
* - 06 = SS Init Data Test -> return error_code \n
* - 13 = Read 1 MS Raw Frame -> return additional data: MS frame row after row
* \n
* - 14 = Read MS Init Data -> return additional data: MS init data row after
* row \n
* - 15 = Read 1 SS Raw Frame -> return additional data: SS frame,
* force channels followed by sense channels \n
* - 16 = Read SS Init Data -> return additional data: SS Init data,
* first IX for force and sense channels and then CX for force and sense
* channels \n
* - F0 = Perform a system reset -> return error_code \n
* - F1 = Perform a system reset and reenable the sensing and the interrupt
*/
static ssize_t stm_fts_cmd_write(struct file *fp, struct kobject *kobj,
struct bin_attribute *battr, char *buf,
loff_t offset, size_t count)
{
u8 result, n = 0;
struct device *dev = kobj_to_dev(kobj);
struct fts_ts_info *info = dev_get_drvdata(dev);
char *p, *temp_buf, *token;
size_t token_len = 0;
ssize_t retval = count;
if (offset != 0)
return count;
if (!count) {
dev_err(dev, "%s: Invalid input buffer length!\n", __func__);
retval = -EINVAL;
goto out;
}
if (!info) {
dev_err(dev, "%s: Unable to access driver data\n", __func__);
retval = -EINVAL;
goto out;
}
if (!mutex_trylock(&info->diag_cmd_lock)) {
dev_err(dev, "%s: Blocking concurrent access\n", __func__);
retval = -EBUSY;
goto out;
}
memset(info->typeOfCommand, 0, sizeof(info->typeOfCommand));
temp_buf = kstrdup(buf, GFP_KERNEL);
if (!temp_buf) {
dev_err(dev, "%s: memory allocation failed!",
__func__);
retval = -ENOMEM;
goto unlock;
}
p = temp_buf;
/* Parse the input string to retrieve 2 hex-digit width cmds/args
* separated by one or more spaces.
* Any input not equal to 2 hex-digit width are ignored.
* A single 2 hex-digit width command w/ or w/o space is allowed.
* Inputs not in the valid hex range are also ignored.
* In case of encountering any of the above failure, the entire input
* buffer is discarded.
*/
while (p && (n < CMD_STR_LEN)) {
while (isspace(*p)) {
p++;
}
token = strsep(&p, " ");
if (!token || *token == '\0') {
break;
}
token_len = strlen(token);
/* handle last token case */
if (token_len == 3 && token[2] == '\n')
token[2] = '\0';
else if (token_len != 2) {
dev_err(dev, "%s: bad len. len=%zu\n",
__func__, token_len);
n = 0;
break;
}
if (kstrtou8(token, 16, &result)) {
/* Conversion failed due to bad input.
* Discard the entire buffer.
*/
dev_err(dev, "%s: bad input\n", __func__);
n = 0;
break;
}
/* found a valid cmd/args */
info->typeOfCommand[n] = result;
dev_info(dev, "%s: typeOfCommand[%d]=%02X\n",
__func__, n, info->typeOfCommand[n]);
n++;
}
if (n == 0) {
dev_err(dev, "%s: Found invalid cmd/arg\n", __func__);
retval = -EINVAL;
}
info->numberParameters = n;
dev_info(dev, "%s: Number of Parameters = %d\n", __func__, info->numberParameters);
kfree(temp_buf);
unlock:
mutex_unlock(&info->diag_cmd_lock);
out:
return retval;
}
static ssize_t stm_fts_cmd_read(struct file *fp, struct kobject *kobj,
struct bin_attribute *battr, char *buf,
loff_t offset, size_t count)
{
int res, j, doClean = 0, index = 0;
int size = (6 * 2) + 1;
int nodes = 0;
int init_type = SPECIAL_PANEL_INIT;
u8 *all_strbuff;
struct device *dev = kobj_to_dev(kobj);
struct fts_ts_info *info = dev_get_drvdata(dev);
const char *limits_file = info->board->limits_name;
char *label[2];
MutualSenseData compData;
SelfSenseData comData;
MutualSenseFrame frameMS;
SelfSenseFrame frameSS;
u16 ito_max_val[2] = {0x00};
u8 report = 0;
if (offset > 0)
goto offset_reading;
if (info->stm_fts_cmd_buff) {
memset(info->stm_fts_cmd_buff, 0, MAX_RAWDATA_STR_SIZE);
dev_warn(dev, "info->stm_fts_cmd_buff existed.\n");
} else {
info->stm_fts_cmd_buff = (u8 *)kmalloc(MAX_RAWDATA_STR_SIZE,
GFP_KERNEL);
}
all_strbuff = info->stm_fts_cmd_buff;
if (!info) {
dev_err(dev, "%s: Unable to access driver data\n", __func__);
return -EINVAL;
}
if (!mutex_trylock(&info->diag_cmd_lock)) {
dev_err(dev, "%s: Blocking concurrent access\n", __func__);
return -EBUSY;
}
if (info->numberParameters >= 1) {
res = fts_enableInterrupt(info, false);
if (res < 0) {
dev_err(dev, "fts_enableInterrupt: ERROR %08X\n", res);
res = (res | ERROR_DISABLE_INTER);
goto END;
}
switch (info->typeOfCommand[0]) {
/*ITO TEST*/
case 0x01:
frameMS.node_data = NULL;
res = production_test_ito(info, limits_file,
&frameMS, ito_max_val);
/* report MS raw frame only if was successfully
* acquired */
if (frameMS.node_data != NULL) {
size += (frameMS.node_data_size *
sizeof(short) + 2) * 2;
report = 1;
}
break;
/*PRODUCTION TEST*/
case 0x02:
if (info->systemInfo.u8_cfgAfeVer !=
info->systemInfo.u8_cxAfeVer) {
res = ERROR_OP_NOT_ALLOW;
dev_err(dev, "Miss match in CX version! MP test not allowed with wrong CX memory! ERROR %08X\n",
res);
break;
}
res = production_test_initialization(info, init_type);
break;
case 0x00:
#ifndef COMPUTE_INIT_METHOD
if (info->systemInfo.u8_cfgAfeVer !=
info->systemInfo.u8_cxAfeVer) {
res = ERROR_OP_NOT_ALLOW;
dev_err(dev, "Miss match in CX version! MP test not allowed with wrong CX memory! ERROR %08X\n",
res);
break;
}
#else
if (info->systemInfo.u8_mpFlag != MP_FLAG_FACTORY) {
init_type = SPECIAL_FULL_PANEL_INIT;
dev_info(dev, "Select Full Panel Init!\n");
} else {
init_type = NO_INIT;
dev_info(dev, "Skip Full Panel Init!\n");
}
#endif
res = production_test_main(info, limits_file, 1,
init_type, MP_FLAG_FACTORY);
break;
/*read mutual raw*/
case 0x13:
dev_info(dev, "Get 1 MS Frame\n");
if (info->numberParameters >= 2 &&
info->typeOfCommand[1] == LOCKED_LP_ACTIVE)
setScanMode(info, SCAN_MODE_LOCKED, LOCKED_LP_ACTIVE);
else
setScanMode(info, SCAN_MODE_LOCKED, LOCKED_ACTIVE);
msleep(WAIT_FOR_FRESH_FRAMES);
/* Skip sensing off when typeOfCommand[2]=0x01
* to avoid sense on force cal after reading raw data
*/
if (!(info->numberParameters >= 3 &&
info->typeOfCommand[2] == 0x01)) {
setScanMode(info, SCAN_MODE_ACTIVE, 0x00);
msleep(WAIT_AFTER_SENSEOFF);
/* Delete the events related to some touch
* (allow to call this function while touching
* the screen without having a flooding of the
* FIFO)
*/
flushFIFO(info);
}
#ifdef READ_FILTERED_RAW
res = getMSFrame3(info, MS_FILTER, &frameMS);
#else
res = getMSFrame3(info, MS_RAW, &frameMS);
#endif
if (res < 0) {
dev_err(dev, "Error while taking the MS frame... ERROR %08X\n",
res);
} else {
dev_info(dev, "The frame size is %d words\n",
res);
#ifdef RAW_DATA_FORMAT_DEC
size += 3 * 2 +
(7 * frameMS.header.sense_node + 1)
* frameMS.header.force_node;
#else
size += (res * sizeof(short) + 2) * 2;
#endif
/* set res to OK because if getMSFrame is
* successful res = number of words read
*/
res = OK;
if (info->typeOfCommand[1] == LOCKED_ACTIVE)
label[0] = "CmRaw =";
else if (info->typeOfCommand[1] ==
LOCKED_LP_ACTIVE)
label[0] = "CmRaw_LP =";
else
label[0] = "MS Frame =";
print_frame_short(info,
label[0],
array1dTo2d_short(
frameMS.node_data,
frameMS.node_data_size,
frameMS.header.sense_node),
frameMS.header.force_node,
frameMS.header.sense_node);
}
break;
/*read self raw*/
case 0x15:
dev_info(dev, "Get 1 SS Frame\n");
if (info->numberParameters >= 2 &&
info->typeOfCommand[1] == LOCKED_LP_DETECT)
setScanMode(info, SCAN_MODE_LOCKED, LOCKED_LP_DETECT);
else
setScanMode(info, SCAN_MODE_LOCKED, LOCKED_ACTIVE);
msleep(WAIT_FOR_FRESH_FRAMES);
/* Skip sensing off when typeOfCommand[2]=0x01
* to avoid sense on force cal after reading raw data
*/
if (!(info->numberParameters >= 3 &&
info->typeOfCommand[2] == 0x01)) {
setScanMode(info, SCAN_MODE_ACTIVE, 0x00);
msleep(WAIT_AFTER_SENSEOFF);
flushFIFO(info);
/* delete the events related to some touch
* (allow to call this function while touching
* the screen without having a flooding of the
* FIFO)
*/
}
if (info->numberParameters >= 2 &&
info->typeOfCommand[1] == LOCKED_LP_DETECT)
#ifdef READ_FILTERED_RAW
res = getSSFrame3(info, SS_DETECT_FILTER,
&frameSS);
#else
res = getSSFrame3(info, SS_DETECT_RAW,
&frameSS);
#endif
else
#ifdef READ_FILTERED_RAW
res = getSSFrame3(info, SS_FILTER, &frameSS);
#else
res = getSSFrame3(info, SS_RAW, &frameSS);
#endif
if (res < OK) {
dev_err(dev, "Error while taking the SS frame... ERROR %08X\n",
res);
} else {
dev_info(dev, "The frame size is %d words\n", res);
#ifdef RAW_DATA_FORMAT_DEC
size += 3 * 2 + 5 +
(frameSS.header.sense_node +
frameSS.header.force_node) * 7;
#else
size += (res * sizeof(short) + 2) * 2;
#endif
/* set res to OK because if getMSFrame is
* successful res = number of words read
*/
res = OK;
if (info->typeOfCommand[1] == LOCKED_ACTIVE) {
label[0] = "CsRaw_Tx =";
label[1] = "CsRaw_Rx =";
} else if (info->typeOfCommand[1] ==
LOCKED_LP_DETECT) {
label[0] = "CsRaw_Tx_LP =";
label[1] = "CsRaw_Rx_LP =";
} else {
label[0] = "SS force frame =";
label[1] = "SS sense frame =";
}
print_frame_short(info,
label[0],
array1dTo2d_short(
frameSS.force_data,
frameSS.header.force_node,
frameSS.header.force_node),
1, frameSS.header.force_node);
print_frame_short(info,
label[1],
array1dTo2d_short(
frameSS.sense_data,
frameSS.header.sense_node,
frameSS.header.sense_node),
1, frameSS.header.sense_node);
}
break;
case 0x14: /* read mutual comp data */
dev_info(dev, "Get MS Compensation Data\n");
res = readMutualSenseCompensationData(info,
LOAD_CX_MS_TOUCH,
&compData);
if (res < 0)
dev_err(dev, "Error reading MS compensation data ERROR %08X\n",
res);
else {
dev_info(dev, "MS Compensation Data Reading Finished!\n");
size += ((compData.node_data_size + 3) *
sizeof(u8)) * 2;
print_frame_i8(info, "MS Data (Cx2) =",
array1dTo2d_i8(
compData.node_data,
compData.
node_data_size,
compData.header.
sense_node),
compData.header.force_node,
compData.header.sense_node);
}
break;
case 0x16: /* read self comp data */
dev_info(dev, "Get SS Compensation Data...\n");
res = readSelfSenseCompensationData(info,
LOAD_CX_SS_TOUCH,
&comData);
if (res < 0)
dev_err(dev, "Error reading SS compensation data ERROR %08X\n",
res);
else {
dev_info(dev, "SS Compensation Data Reading Finished!\n");
size += ((comData.header.force_node +
comData.header.sense_node) * 2 + 8) *
sizeof(u8) * 2;
print_frame_u8(info, "SS Data Ix2_fm = ",
array1dTo2d_u8(comData.ix2_fm,
comData.header.
force_node, 1),
comData.header.force_node, 1);
print_frame_i8(info, "SS Data Cx2_fm = ",
array1dTo2d_i8(comData.cx2_fm,
comData.header.
force_node, 1),
comData.header.force_node, 1);
print_frame_u8(info, "SS Data Ix2_sn = ",
array1dTo2d_u8(comData.ix2_sn,
comData.header.
sense_node,
comData.header.
sense_node), 1,
comData.header.sense_node);
print_frame_i8(info, "SS Data Cx2_sn = ",
array1dTo2d_i8(comData.cx2_sn,
comData.header.
sense_node,
comData.header.
sense_node), 1,
comData.header.sense_node);
}
break;
case 0x17: /* Read mutual strength */
dev_info(dev, "Get 1 MS Strength\n");
/* Skip sensing off when typeOfCommand[1]=0x01
* to avoid sense on force cal after reading raw data
*/
if (!(info->numberParameters >= 2 &&
info->typeOfCommand[1] == 0x01)) {
setScanMode(info, SCAN_MODE_ACTIVE, 0xFF);
msleep(WAIT_FOR_FRESH_FRAMES);
setScanMode(info, SCAN_MODE_ACTIVE, 0x00);
msleep(WAIT_AFTER_SENSEOFF);
/* Flush outstanding touch events */
flushFIFO(info);
}
nodes = getMSFrame3(info, MS_STRENGTH, &frameMS);
if (nodes < 0) {
res = nodes;
dev_err(dev, "Error while taking the MS strength... ERROR %08X\n",
res);
} else {
dev_info(dev, "The frame size is %d words\n", nodes);
#ifdef RAW_DATA_FORMAT_DEC
size += 3 * 2 +
(7 * frameMS.header.sense_node + 1)
* frameMS.header.force_node;
#else
size += (nodes * sizeof(short) + 2) * 2;
#endif
print_frame_short(info, "MS strength =",
array1dTo2d_short(frameMS.node_data,
frameMS.node_data_size,
frameMS.header.sense_node),
frameMS.header.force_node,
frameMS.header.sense_node);
res = OK;
}
break;
case 0x03: /* MS Raw DATA TEST */
res = fts_system_reset(info);
if (res >= OK)
res = production_test_ms_raw(info,
limits_file, 1);
break;
case 0x04: /* MS CX DATA TEST */
res = fts_system_reset(info);
if (res >= OK)
res = production_test_ms_cx(info,
limits_file, 1);
break;
case 0x05: /* SS RAW DATA TEST */
res = fts_system_reset(info);
if (res >= OK)
res = production_test_ss_raw(info,
limits_file, 1);
break;
case 0x06: /* SS IX CX DATA TEST */
res = fts_system_reset(info);
if (res >= OK)
res = production_test_ss_ix_cx(info,
limits_file, 1);
break;
case 0xF0:
case 0xF1: /* TOUCH ENABLE/DISABLE */
doClean = (int)(info->typeOfCommand[0] & 0x01);
res = cleanUp(info, doClean);
break;
default:
dev_err(dev, "COMMAND NOT VALID!! Insert a proper value ...\n");
res = ERROR_OP_NOT_ALLOW;
break;
}
doClean = fts_mode_handler(info, 1);
if (info->typeOfCommand[0] != 0xF0)
doClean |= fts_enableInterrupt(info, true);
if (doClean < 0)
dev_err(dev, "%s: ERROR %08X\n", __func__,
(doClean | ERROR_ENABLE_INTER));
} else {
dev_err(dev, "NO COMMAND SPECIFIED!!! do: 'echo [cmd_code] [args] > stm_fts_cmd' before looking for result!\n");
res = ERROR_OP_NOT_ALLOW;
}
END:
/* here start the reporting phase, assembling the data
* to send in the file node */
size = MAX_RAWDATA_STR_SIZE;
index = 0;
index += scnprintf(all_strbuff + index, size - index, "{ %08X", res);
if (res >= OK || report) {
/*all the other cases are already fine printing only the res.*/
switch (info->typeOfCommand[0]) {
case 0x01:
case 0x13:
case 0x17:
if (frameMS.node_data == NULL)
break;
#ifdef RAW_DATA_FORMAT_DEC
index += scnprintf(all_strbuff + index, size - index,
"%3d",
(u8)frameMS.header.force_node);
index += scnprintf(all_strbuff + index, size - index,
"%3d",
(u8)frameMS.header.sense_node);
if (info->typeOfCommand[0] == 0x01) {
index += scnprintf(all_strbuff + index,
size - index, " %d ",
ito_max_val[0]);
index += scnprintf(all_strbuff + index,
size - index, "%d ",
ito_max_val[1]);
}
#else
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)frameMS.header.force_node);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)frameMS.header.sense_node);
if (info->typeOfCommand[0] == 0x01) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X%02X",
(ito_max_val[0] & 0xFF00) >> 8,
ito_max_val[0] & 0xFF);
index += scnprintf(all_strbuff + index,
size - index,
"%02X%02X",
(ito_max_val[1] & 0xFF00) >> 8,
ito_max_val[1] & 0xFF);
}
#endif
for (j = 0; j < frameMS.node_data_size; j++) {
#ifdef RAW_DATA_FORMAT_DEC
if (j % frameMS.header.sense_node == 0)
index += scnprintf(all_strbuff + index,
size - index, "\n");
index += scnprintf(all_strbuff + index,
size - index, "%d ",
frameMS.node_data[j]);
#else
index += scnprintf(all_strbuff + index,
size - index,
"%02X%02X",
(frameMS.node_data[j] & 0xFF00) >> 8,
frameMS.node_data[j] & 0xFF);
#endif
}
kfree(frameMS.node_data);
break;
case 0x15:
#ifdef RAW_DATA_FORMAT_DEC
index += scnprintf(all_strbuff + index, size - index,
"%3d",
(u8)frameSS.header.force_node);
index += scnprintf(all_strbuff + index, size - index,
"%3d",
(u8)frameSS.header.sense_node);
index += scnprintf(all_strbuff + index, size - index,
"\n");
#else
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)frameSS.header.force_node);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)frameSS.header.sense_node);
#endif
/* Copying self raw data Force */
for (j = 0; j < frameSS.header.force_node; j++) {
#ifdef RAW_DATA_FORMAT_DEC
index += scnprintf(all_strbuff + index,
size - index,
"%d ",
frameSS.force_data[j]);
#else
index += scnprintf(all_strbuff + index,
size - index,
"%02X%02X",
(frameSS.force_data[j] & 0xFF00) >> 8,
frameSS.force_data[j] & 0xFF);
#endif
}
#ifdef RAW_DATA_FORMAT_DEC
index += scnprintf(all_strbuff + index, size - index,
"\n");
#endif
/* Copying self raw data Sense */
for (j = 0; j < frameSS.header.sense_node; j++) {
#ifdef RAW_DATA_FORMAT_DEC
index += scnprintf(all_strbuff + index,
size - index, "%d ",
frameSS.sense_data[j]);
#else
index += scnprintf(all_strbuff + index,
size - index,
"%02X%02X",
(frameSS.sense_data[j] & 0xFF00) >> 8,
frameSS.sense_data[j] & 0xFF);
#endif
}
kfree(frameSS.force_data);
kfree(frameSS.sense_data);
break;
case 0x14:
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)compData.header.force_node);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(u8)compData.header.sense_node);
/* Cpying CX1 value */
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(compData.cx1) & 0xFF);
/* Copying CX2 values */
for (j = 0; j < compData.node_data_size; j++) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X",
(compData.node_data[j]) & 0xFF);
}
kfree(compData.node_data);
break;
case 0x16:
index += scnprintf(all_strbuff + index,
size - index, "%02X",
comData.header.force_node);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
comData.header.sense_node);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.f_ix1) & 0xFF);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.s_ix1) & 0xFF);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.f_cx1) & 0xFF);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.s_cx1) & 0xFF);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.f_ix0) & 0xFF);
index += scnprintf(all_strbuff + index,
size - index, "%02X",
(comData.s_ix0) & 0xFF);
/* Copying IX2 Force */
for (j = 0; j < comData.header.force_node; j++) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X",
comData.ix2_fm[j] & 0xFF);
}
/* Copying IX2 Sense */
for (j = 0; j < comData.header.sense_node; j++) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X",
comData.ix2_sn[j] & 0xFF);
}
/* Copying CX2 Force */
for (j = 0; j < comData.header.force_node; j++) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X",
comData.cx2_fm[j] & 0xFF);
}
/* Copying CX2 Sense */
for (j = 0; j < comData.header.sense_node; j++) {
index += scnprintf(all_strbuff + index,
size - index,
"%02X",
comData.cx2_sn[j] & 0xFF);
}
kfree(comData.ix2_fm);
kfree(comData.ix2_sn);
kfree(comData.cx2_fm);
kfree(comData.cx2_sn);
break;
default:
break;
}
}
index += scnprintf(all_strbuff + index, size - index, " }\n");
info->numberParameters = 0;
/* need to reset the number of parameters in order to wait the
* next command, comment if you want to repeat the last command sent
* just doing a cat */
/* dev_err(dev, "numberParameters = %d\n", info->numberParameters); */
mutex_unlock(&info->diag_cmd_lock);
info->stm_fts_cmd_buff_len = index;
offset_reading:
if (info->stm_fts_cmd_buff_len == 0) {
kfree(info->stm_fts_cmd_buff);
info->stm_fts_cmd_buff = NULL;
return 0;
} else if (info->stm_fts_cmd_buff_len > PAGE_SIZE) {
index = PAGE_SIZE;
} else {
index = info->stm_fts_cmd_buff_len;
}
dev_info(dev, "%s: remaining length: %lld, offset: %lld.\n", __func__,
info->stm_fts_cmd_buff_len, offset);
memcpy(buf, info->stm_fts_cmd_buff + offset, index);
info->stm_fts_cmd_buff_len = info->stm_fts_cmd_buff_len - index;
return index;
}
static ssize_t autotune_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
int ret = 0;
bool val = false;
if ((kstrtobool(buf, &val) < 0) || !val) {
ret = -EINVAL;
goto err_args;
}
ret = production_test_main(info, info->board->limits_name, 1,
SPECIAL_FULL_PANEL_INIT, MP_FLAG_BOOT);
cleanUp(info, true);
info->autotune_stat = ret;
err_args:
return ret < 0 ? ret : count;
}
static ssize_t autotune_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
return scnprintf(buf, PAGE_SIZE, "{ %08X }\n", info->autotune_stat);
}
static ssize_t infoblock_getdata_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
int count = 0;
int res = 0;
u8 control_reg = 0;
u8 flash_status = 0;
u8 *data = NULL;
int addr = 0;
int i = 0;
res = fts_writeReadU8UX(info, FTS_CMD_HW_REG_R, ADDR_SIZE_HW_REG,
ADDR_FLASH_STATUS, &control_reg,
1, DUMMY_HW_REG);
if (res < OK) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"ADDR_FLASH_STATUS read failed\n");
goto END;
}
flash_status = (control_reg & 0xFC);
count += scnprintf(&buf[count], PAGE_SIZE - count,
"The value:0x%X 0x%X\n", control_reg, flash_status);
res = fts_writeU8UX(info, FTS_CMD_HW_REG_W, ADDR_SIZE_HW_REG,
ADDR_FLASH_STATUS, &flash_status, 1);
if (res < OK) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"ADDR_FLASH_STATUS write failed\n");
goto END;
}
data = kmalloc(INFO_BLOCK_SIZE * sizeof(u8), GFP_KERNEL);
if (data == NULL) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"kmalloc failed\n");
goto END;
}
res = fts_writeReadU8UX(info, FTS_CMD_HW_REG_R, ADDR_SIZE_HW_REG,
ADDR_INFOBLOCK, data, INFO_BLOCK_SIZE,
DUMMY_HW_REG);
if (res < OK) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"ADDR_INFOBLOCK read failed\n");
goto END;
}
addr = INFO_BLOCK_LOCKDOWN;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Lock down info the first 4bytes:0X%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Lock down info the second 4bytes:0X%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
count += scnprintf(&buf[count], PAGE_SIZE - count, "0x%04X\n", addr);
addr = INFO_BLOCK_AOFFSET;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset magic number:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset crc:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset ~crcr:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset len:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset ~len:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset ver:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count, "0x%04X\n", addr);
for (i = 0; i < 38; i++) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset CH[%d] Quar:0X%02X,Half:0X%02X,Full:0X%02X%02X\n",
i, data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
}
count += scnprintf(&buf[count], PAGE_SIZE - count, "0x%04X\n", addr);
for (i = 0; i < 4; i++) {
count += scnprintf(&buf[count], PAGE_SIZE - count,
"Aoffset CA[%d] Quar:0X%02X,Half:0X%02X,Full:0X%02X%02X\n",
i, data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
}
addr = INFO_BLOCK_OSC;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim magic number:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim crc:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim len:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim ~crcr:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim ~len:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim ver:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim major ver:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim cen bg:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim frequency bg:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim frequency afe:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim cen bg valid:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
addr += 4;
count += scnprintf(&buf[count], PAGE_SIZE - count,
"OscTrim cen afe valid:0x%02X%02X%02X%02X\n",
data[addr+3], data[addr+2], data[addr+1],
data[addr]);
END:
kfree(data);
if (control_reg != flash_status)
fts_writeU8UX(info, FTS_CMD_HW_REG_W, ADDR_SIZE_HW_REG,
ADDR_FLASH_STATUS, &control_reg, 1);
return count;
}
static DEVICE_ATTR_RO(infoblock_getdata);
static DEVICE_ATTR_RW(fwupdate);
static DEVICE_ATTR_RO(appid);
static DEVICE_ATTR_RO(mode_active);
static DEVICE_ATTR_RO(fw_file_test);
static DEVICE_ATTR_RO(status);
#ifdef USE_ONE_FILE_NODE
static DEVICE_ATTR_RW(feature_enable);
#else
#ifdef GRIP_MODE
static DEVICE_ATTR_RW(grip_mode);
#endif
#ifdef CHARGER_MODE
static DEVICE_ATTR_RW(charger_mode);
#endif
#ifdef GLOVE_MODE
static DEVICE_ATTR_RW(glove_mode);
#endif
#ifdef COVER_MODE
static DEVICE_ATTR_RW(cover_mode);
#endif
#ifdef STYLUS_MODE
static DEVICE_ATTR_RW(stylus_mode);
#endif
#endif
#ifdef GESTURE_MODE
static DEVICE_ATTR_RW(gesture_mask);
static DEVICE_ATTR_RO(gesture_coordinates);
#endif
static DEVICE_ATTR_RW(autotune);
static BIN_ATTR_RW(stm_fts_cmd, 0);
static struct bin_attribute *fts_bin_attr_group[] = {
&bin_attr_stm_fts_cmd,
NULL,
};
static struct attribute *fts_attr_group[] = {
&dev_attr_infoblock_getdata.attr,
&dev_attr_fwupdate.attr,
&dev_attr_appid.attr,
&dev_attr_mode_active.attr,
&dev_attr_fw_file_test.attr,
&dev_attr_status.attr,
#ifdef USE_ONE_FILE_NODE
&dev_attr_feature_enable.attr,
#else
#ifdef GRIP_MODE
&dev_attr_grip_mode.attr,
#endif
#ifdef CHARGER_MODE
&dev_attr_charger_mode.attr,
#endif
#ifdef GLOVE_MODE
&dev_attr_glove_mode.attr,
#endif
#ifdef COVER_MODE
&dev_attr_cover_mode.attr,
#endif
#ifdef STYLUS_MODE
&dev_attr_stylus_mode.attr,
#endif
#endif
#ifdef GESTURE_MODE
&dev_attr_gesture_mask.attr,
&dev_attr_gesture_coordinates.attr,
#endif
&dev_attr_autotune.attr,
NULL,
};
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
static int gti_default_handler(void *private_data, enum gti_cmd_type cmd_type,
struct gti_union_cmd_data *cmd)
{
int ret = 0;
switch (cmd_type) {
case GTI_CMD_NOTIFY_DISPLAY_STATE:
case GTI_CMD_NOTIFY_DISPLAY_VREFRESH:
ret = -EOPNOTSUPP;
break;
case GTI_CMD_SET_HEATMAP_ENABLED:
/* Heatmap is always enabled. */
ret = 0;
break;
default:
ret = -ESRCH;
break;
}
return ret;
}
static int get_fw_version(void *private_data, struct gti_fw_version_cmd *cmd)
{
struct fts_ts_info *info = private_data;
int cmd_buffer_size = sizeof(cmd->buffer);
get_fw_info(info, cmd->buffer, cmd_buffer_size);
return 0;
}
static int get_mutual_sensor_data(void *private_data, struct gti_sensor_data_cmd *cmd)
{
struct fts_ts_info *info = private_data;
int max_x = getForceLen(info);
int max_y = getSenseLen(info);
int result;
uint32_t frame_index = 0, x, y;
uint32_t x_val, y_val;
int16_t heatmap_value;
u16 addr_offset;
cmd->size = max_x * max_y * BYTES_PER_NODE;
if (!info->mutual_data) {
info->mutual_data = devm_kzalloc(info->dev, cmd->size, GFP_KERNEL);
if (!info->mutual_data) {
dev_err(info->dev, "Failed to allocate mutual_data.\n");
result = -ENOMEM;
goto get_data_err;
}
}
cmd->buffer = (u8 *)info->mutual_data;
if (!info->data_buffer || (info->data_buffer_size < cmd->size)) {
devm_kfree(info->dev, info->data_buffer);
info->data_buffer = NULL;
info->data_buffer_size = 0;
info->data_buffer = devm_kzalloc(info->dev, cmd->size, GFP_KERNEL);
if (!info->data_buffer) {
dev_err(info->dev, "Failed to allocate data_buffer.\n");
result = -ENOMEM;
goto get_data_err;
}
info->data_buffer_size = cmd->size;
}
switch (cmd->type) {
case GTI_SENSOR_DATA_TYPE_MS_RAW:
addr_offset = info->systemInfo.u16_msTchRawAddr;
break;
case GTI_SENSOR_DATA_TYPE_MS_BASELINE:
addr_offset = info->systemInfo.u16_msTchBaselineAddr;
break;
case GTI_SENSOR_DATA_TYPE_MS:
case GTI_SENSOR_DATA_TYPE_MS_DIFF:
default:
addr_offset = info->systemInfo.u16_msTchStrenAddr;
break;
}
result = fts_writeReadU8UX(info, FTS_CMD_FRAMEBUFFER_R, BITS_16,
addr_offset,
(u8 *)info->data_buffer,
cmd->size, DUMMY_FRAMEBUFFER);
if (result < 0) {
dev_err(info->dev, "get mutual data failed with result=0x%08X.\n", result);
goto get_data_err;
}
for (y = 0; y < max_y; y++) {
for (x = 0; x < max_x; x++) {
/* Rotate frame counter-clockwise and invert
* if necessary.
*/
if (info->board->sensor_inverted_x)
x_val = (max_x - 1) - x;
else
x_val = x;
if (info->board->sensor_inverted_y)
y_val = (max_y - 1) - y;
else
y_val = y;
if (info->board->tx_rx_dir_swap)
heatmap_value = info->data_buffer[y_val * max_x + x_val];
else
heatmap_value = info->data_buffer[x_val * max_y + y_val];
info->mutual_data[frame_index++] = heatmap_value;
}
}
return 0;
get_data_err:
cmd->size = 0;
cmd->buffer = NULL;
return result;
}
static int get_self_sensor_data(void *private_data, struct gti_sensor_data_cmd *cmd)
{
struct fts_ts_info *info = private_data;
int i;
int result;
int16_t *tx_src, *rx_src, *tx_dst, *rx_dst;
int tx_size = getForceLen(info);
int rx_size = getSenseLen(info);
u16 tx_addr_offset, rx_addr_offset;
cmd->size = (tx_size + rx_size) * BYTES_PER_NODE;
if (!info->self_data) {
info->self_data = devm_kzalloc(info->dev, cmd->size, GFP_KERNEL);
if (!info->self_data) {
dev_err(info->dev, "Failed to allocate self_data.\n");
result = -ENOMEM;
goto get_data_err;
}
}
cmd->buffer = (u8 *)info->self_data;
if (!info->data_buffer || (info->data_buffer_size < cmd->size)) {
devm_kfree(info->dev, info->data_buffer);
info->data_buffer = NULL;
info->data_buffer_size = 0;
info->data_buffer = devm_kzalloc(info->dev, cmd->size, GFP_KERNEL);
if (!info->data_buffer) {
dev_err(info->dev, "Failed to allocate data_buffer.\n");
result = -ENOMEM;
goto get_data_err;
}
info->data_buffer_size = cmd->size;
}
switch (cmd->type) {
case GTI_SENSOR_DATA_TYPE_SS_RAW:
tx_addr_offset = info->systemInfo.u16_ssTchTxRawAddr;
rx_addr_offset = info->systemInfo.u16_ssTchRxRawAddr;
break;
case GTI_SENSOR_DATA_TYPE_SS_BASELINE:
tx_addr_offset = info->systemInfo.u16_ssTchTxBaselineAddr;
rx_addr_offset = info->systemInfo.u16_ssTchRxBaselineAddr;
break;
case GTI_SENSOR_DATA_TYPE_SS:
case GTI_SENSOR_DATA_TYPE_SS_DIFF:
default:
tx_addr_offset = info->systemInfo.u16_ssTchTxStrenAddr;
rx_addr_offset = info->systemInfo.u16_ssTchRxStrenAddr;
break;
}
tx_src = info->data_buffer;
rx_src = info->data_buffer + tx_size;
result = fts_writeReadU8UX(info, FTS_CMD_FRAMEBUFFER_R, BITS_16,
tx_addr_offset,
(u8 *)tx_src,
tx_size * BYTES_PER_NODE, DUMMY_FRAMEBUFFER);
if (result < 0) {
dev_err(info->dev, "get tx data failed with result=0x%08X.\n", result);
goto get_data_err;
}
result = fts_writeReadU8UX(info, FTS_CMD_FRAMEBUFFER_R, BITS_16,
rx_addr_offset,
(u8 *)rx_src,
rx_size * BYTES_PER_NODE, DUMMY_FRAMEBUFFER);
if (result < 0) {
dev_err(info->dev, "get rx data failed with result=0x%08X.\n", result);
goto get_data_err;
}
/* tx, rx data order is fixed in TouchOffloadData1d */
tx_dst = info->self_data;
rx_dst = &info->self_data[tx_size];
/* If the tx data is flipped, copy in left-to-right order */
if (info->board->sensor_inverted_x) {
for (i = 0; i < tx_size; i++)
tx_dst[i] = tx_src[tx_size - 1 - i];
} else {
memcpy(tx_dst, tx_src, sizeof(int16_t) * tx_size);
}
/* If the rx data is flipped, copy in top-to-bottom order */
if (info->board->sensor_inverted_y) {
for (i = 0; i < rx_size; i++)
rx_dst[i] = rx_src[rx_size - 1 - i];
} else {
memcpy(rx_dst, rx_src, sizeof(int16_t) * rx_size);
}
return 0;
get_data_err:
cmd->size = 0;
cmd->buffer = NULL;
return result;
}
static int set_continuous_report(void *private_data, struct gti_continuous_report_cmd *cmd)
{
struct fts_ts_info *info = private_data;
u8 write[3];
write[0] = (u8) FTS_CMD_CUSTOM_W;
write[1] = (u8) CUSTOM_CMD_CONTINUOUS_REPORT;
write[2] = cmd->setting == GTI_CONTINUOUS_REPORT_ENABLE ? 1 : 0;
return fts_write(info, write, sizeof(write));
}
static int set_screen_protector_mode(
void *private_data, struct gti_screen_protector_mode_cmd *cmd)
{
struct fts_ts_info *info = private_data;
u8 write[3];
u8 enable;
int ret;
dev_info(info->dev, "%s: setting %u.\n", __func__, cmd->setting);
enable = cmd->setting == GTI_SCREEN_PROTECTOR_MODE_ENABLE ? 1 : 0;
write[0] = (u8) FTS_CMD_CUSTOM_W;
write[1] = (u8) CUSTOM_CMD_HIGH_SENSITIVITY;
write[2] = enable;
/* The set_screen protector_mode() will be called in the last feature
* command when GTI resets features after the device resumes, use
* fts_writeFwCmd() to read out all echo events in the FIFO before
* sense-on command.
*/
/* 1. Use fts_write() when interrupts enabled and show the echo evnets
* in fts_status_event_handler().
* 2. Use fts_writeFwCmd() to poll echo ACK when interrupts disabled.
*/
if (info->irq_enabled)
ret = fts_write(info, write, sizeof(write));
else
ret = fts_writeFwCmd(info, write, sizeof(write));
if (ret) {
dev_err(info->dev, "%s: failed(ret: %d)!\n", __func__, ret);
} else {
info->glove_enabled = enable;
dev_info(info->dev, "%s: ok.\n", __func__);
}
return ret;
}
static int get_screen_protector_mode(
void *private_data, struct gti_screen_protector_mode_cmd *cmd)
{
struct fts_ts_info *info = private_data;
cmd->setting = info->glove_enabled == 1 ? GTI_SCREEN_PROTECTOR_MODE_ENABLE :
GTI_SCREEN_PROTECTOR_MODE_DISABLE;
return 0;
}
/**
* Grip parameters definition.
* buf[0]: FTS_CMD_CUSTOM_W
* buf[1]: CUSTOM_CMD_GRIP_SUPPRESSION
* buf[2]: Grip type tune.
* buf[3]: Feature enable/disable.
* Bit0-7 for left/right/top/bottom/bottom left/bottom right/top left/top right.
* buf[4]: Feature enable/disable.
* Bit0 for left edge palm, Bit1 for right edge palm.
* Bit2-7 Reserved.
* buf[5-8]: Reserved.
*/
static int set_grip_mode(void *private_data, struct gti_grip_cmd *cmd)
{
struct fts_ts_info *info = private_data;
u8 write[9] = { 0 };
u8 enable;
int ret;
dev_info(info->dev, "%s: setting %u.\n", __func__, cmd->setting);
enable = cmd->setting == GTI_GRIP_ENABLE ? 1 : 0;
write[0] = (u8) FTS_CMD_CUSTOM_W;
write[1] = (u8) CUSTOM_CMD_GRIP_SUPPRESSION;
write[2] = GRIP_FEATURE_ENABLE;
write[3] = enable ? 0xff : 0x00;
write[4] = enable ? 0x03 : 0x00;
ret = fts_write(info, write, sizeof(write));
if (ret) {
dev_err(info->dev, "%s: failed(ret: %d)!\n", __func__, ret);
} else {
info->grip_enabled = enable;
dev_info(info->dev, "%s: ok.\n", __func__);
}
return ret;
}
static int get_grip_mode(void *private_data, struct gti_grip_cmd *cmd)
{
struct fts_ts_info *info = private_data;
cmd->setting = info->grip_enabled == 1 ? GTI_GRIP_ENABLE : GTI_GRIP_DISABLE;
return 0;
}
/**
* Palm mode definition.
* 0 : Palm rejection disable
* 1 : Palm rejection enable. All rejected after detected palm, and returned
* to normal after all left.
* 2 : Palm rejection enable. Palm rejected only after detected palm, and
* returned to normal after palm left.
* 3 : Palm rejection enable. All rejected after detected palm, and returned
* to normal after palm left
*/
/* Use palm mode 3 when it's enabled. */
#define FTS_PALM_MODE 3
static int set_palm_mode(void *private_data, struct gti_palm_cmd *cmd)
{
struct fts_ts_info *info = private_data;
u8 write[3];
u8 enable;
int ret;
dev_info(info->dev, "%s: setting %u.\n", __func__, cmd->setting);
enable = cmd->setting == GTI_PALM_ENABLE ? 1 : 0;
write[0] = (u8) FTS_CMD_CUSTOM_W;
write[1] = (u8) CUSTOM_CMD_PALM_REJECTION;
write[2] = enable ? FTS_PALM_MODE : 0;
ret = fts_write(info, write, sizeof(write));
if (ret) {
dev_err(info->dev, "%s: failed(ret: %d)!\n", __func__, ret);
} else {
info->palm_enabled = enable;
dev_info(info->dev, "%s: ok.\n", __func__);
}
return ret;
}
static int get_palm_mode(void *private_data, struct gti_palm_cmd *cmd)
{
struct fts_ts_info *info = private_data;
cmd->setting = info->palm_enabled == 1 ? GTI_PALM_ENABLE : GTI_PALM_DISABLE;
return 0;
}
#endif
/**
* @defgroup isr Interrupt Service Routine (Event Handler)
* The most important part of the driver is the ISR (Interrupt Service Routine)
* called also as Event Handler \n
* As soon as the interrupt pin goes low, fts_interrupt_handler() is called and
* the chain to read and parse the event read from the FIFO start.\n
* For any different kind of EVT_ID there is a specific event handler
* which will take the correct action to report the proper info to the host. \n
* The most important events are the one related to touch information, status
* update or user report.
* @{
*/
/**
* Report to the linux input system the pressure and release of a button
* handling concurrency
* @param info pointer to fts_ts_info which contains info about the device
* and its hw setup
* @param key_code button value
*/
void fts_input_report_key(struct fts_ts_info *info, int key_code)
{
input_report_key(info->input_dev, key_code, 1);
input_sync(info->input_dev);
input_report_key(info->input_dev, key_code, 0);
input_sync(info->input_dev);
}
/**
* Event Handler for no events (EVT_ID_NOEVENT)
*/
static bool fts_nop_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
dev_info(info->dev, "%s: Doing nothing for event = %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3],
event[4],
event[5], event[6], event[7]);
return false;
}
/**
* Event handler for enter and motion events (EVT_ID_ENTER_POINT,
* EVT_ID_MOTION_POINT )
* report touch coordinates and additional information
* to the linux input system
*/
static bool fts_enter_pointer_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
unsigned char touchId;
unsigned int touch_condition = 1, tool = MT_TOOL_FINGER;
int x, y, z, major, minor, distance;
u8 touchType;
if (!info->resume_bit)
goto no_report;
touchType = event[1] & 0x0F;
touchId = (event[1] & 0xF0) >> 4;
if (touchId >= TOUCH_ID_MAX) {
dev_err(info->dev, "%s : Invalid touch ID = %d ! No Report...\n",
__func__, touchId);
goto no_report;
}
x = (((int)event[3] & 0x0F) << 8) | (event[2]);
y = ((int)event[4] << 4) | ((event[3] & 0xF0) >> 4);
z = (int)event[5];
if (z <= 0) {
/* Should not happen, because zero pressure implies contact has
* left, so this function should not be invoked. For safety, to
* prevent this touch from being dropped, set to smallest
* pressure value instead
*/
#ifndef SKIP_PRESSURE
dev_err(info->dev, "%s: Pressure is %i, but pointer is not leaving.\n",
__func__, z);
#endif
z = 1; /* smallest non-zero pressure value */
}
major = (int)((((event[0] & 0x0C) << 2) | ((event[6] & 0xF0) >> 4)) * AREA_SCALE);
minor = (int)((((event[7] & 0xC0) >> 2) | (event[6] & 0x0F)) * AREA_SCALE);
/* TODO: check with fw how they will report distance */
distance = 0; /* if the tool is touching the display
* the distance should be 0 */
if (x > info->board->x_axis_max)
x = info->board->x_axis_max;
if (y > info->board->y_axis_max)
y = info->board->y_axis_max;
switch (touchType) {
#ifdef STYLUS_MODE
case TOUCH_TYPE_STYLUS:
dev_dbg(info->dev, "%s : touch type = %d!\n", __func__);
if (info->stylus_enabled == 1) {
/* if stylus_enabled is not ==1
* it will be reported as normal touch */
tool = MT_TOOL_PEN;
touch_condition = 1;
__set_bit(touchId, &info->stylus_id);
break;
}
#endif
/* TODO: customer can implement a different strategy for each kind of
* touch */
case TOUCH_TYPE_FINGER:
case TOUCH_TYPE_GLOVE:
dev_dbg(info->dev, "%s : touch type = %d!\n", __func__, touchType);
if (info->palm_touch_mask)
tool = MT_TOOL_PALM;
else
tool = MT_TOOL_FINGER;
touch_condition = 1;
__set_bit(touchId, &info->touch_id);
__clear_bit(touchId, &info->palm_touch_mask);
__clear_bit(touchId, &info->grip_touch_mask);
break;
case TOUCH_TYPE_PALM:
touch_condition = 1;
__set_bit(touchId, &info->touch_id);
__clear_bit(touchId, &info->grip_touch_mask);
if (!info->palm_enabled) {
dev_err(info->dev, "%s : Unexpected touch type = %d!\n",
__func__, touchType);
tool = MT_TOOL_FINGER;
__clear_bit(touchId, &info->palm_touch_mask);
} else {
dev_dbg(info->dev, "%s : touch type = %d!\n",
__func__, touchType);
tool = MT_TOOL_PALM;
__set_bit(touchId, &info->palm_touch_mask);
}
break;
case TOUCH_TYPE_GRIP:
touch_condition = 1;
__set_bit(touchId, &info->touch_id);
__clear_bit(touchId, &info->palm_touch_mask);
if (!info->grip_enabled) {
dev_err(info->dev, "%s : Unexpected touch type = %d!\n",
__func__, touchType);
tool = MT_TOOL_FINGER;
__clear_bit(touchId, &info->grip_touch_mask);
} else {
dev_dbg(info->dev, "%s : touch type = %d!\n",
__func__, touchType);
tool = MT_TOOL_PALM;
__set_bit(touchId, &info->grip_touch_mask);
}
break;
case TOUCH_TYPE_HOVER:
dev_dbg(info->dev, "%s : touch type = %d!\n", __func__, touchType);
tool = MT_TOOL_FINGER;
touch_condition = 0; /* need to hover */
z = 0; /* no pressure */
__set_bit(touchId, &info->touch_id);
distance = DISTANCE_MAX;/* check with fw report the hovering
* distance */
break;
default:
dev_err(info->dev, "%s : Invalid touch type = %d! No Report...\n",
__func__, touchType);
goto no_report;
}
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_input_mt_slot(info->gti, info->input_dev, touchId);
goog_input_report_key(info->gti, info->input_dev, BTN_TOUCH, touch_condition);
goog_input_mt_report_slot_state(info->gti, info->input_dev, tool, 1);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_POSITION_X, x);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_POSITION_Y, y);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_TOUCH_MAJOR, major);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_TOUCH_MINOR, minor);
#ifndef SKIP_PRESSURE
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_PRESSURE, z);
#endif
#ifndef SKIP_DISTANCE
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_DISTANCE, distance);
#endif
#else
input_mt_slot(info->input_dev, touchId);
input_report_key(info->input_dev, BTN_TOUCH, touch_condition);
input_mt_report_slot_state(info->input_dev, tool, 1);
input_report_abs(info->input_dev, ABS_MT_POSITION_X, x);
input_report_abs(info->input_dev, ABS_MT_POSITION_Y, y);
input_report_abs(info->input_dev, ABS_MT_TOUCH_MAJOR, major);
input_report_abs(info->input_dev, ABS_MT_TOUCH_MINOR, minor);
#ifndef SKIP_PRESSURE
input_report_abs(info->input_dev, ABS_MT_PRESSURE, z);
#endif
#ifndef SKIP_DISTANCE
input_report_abs(info->input_dev, ABS_MT_DISTANCE, distance);
#endif
#endif
/* dev_info(info->dev, "%s : Event 0x%02x - ID[%d], (x, y) = (%3d, %3d)
* Size = %d\n",
* __func__, *event, touchId, x, y, touchType); */
return true;
no_report:
return false;
}
/**
* Event handler for leave event (EVT_ID_LEAVE_POINT )
* Report to the linux input system that one touch left the display
*/
static bool fts_leave_pointer_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
unsigned char touchId;
unsigned int tool = MT_TOOL_FINGER;
u8 touchType;
touchType = event[1] & 0x0F;
touchId = (event[1] & 0xF0) >> 4;
if (touchId >= TOUCH_ID_MAX) {
dev_err(info->dev, "%s : Invalid touch ID = %d ! No Report...\n",
__func__, touchId);
return false;
}
switch (touchType) {
#ifdef STYLUS_MODE
case TOUCH_TYPE_STYLUS:
dev_dbg(info->dev, "%s : touch type = %d!\n", __func__);
if (info->stylus_enabled == 1) {
/* if stylus_enabled is not ==1 it will be reported as
* normal touch */
tool = MT_TOOL_PEN;
__clear_bit(touchId, &info->stylus_id);
break;
}
#endif
case TOUCH_TYPE_FINGER:
case TOUCH_TYPE_GLOVE:
case TOUCH_TYPE_PALM:
case TOUCH_TYPE_GRIP:
case TOUCH_TYPE_HOVER:
dev_dbg(info->dev, "%s : touch type = %d!\n", __func__, touchType);
tool = MT_TOOL_FINGER;
__clear_bit(touchId, &info->touch_id);
__clear_bit(touchId, &info->palm_touch_mask);
__clear_bit(touchId, &info->grip_touch_mask);
break;
default:
dev_err(info->dev, "%s : Invalid touch type = %d! No Report...\n",
__func__, touchType);
return false;
}
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_input_mt_slot(info->gti, info->input_dev, touchId);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_PRESSURE, 0);
goog_input_mt_report_slot_state(info->gti, info->input_dev, tool, 0);
goog_input_report_abs(info->gti, info->input_dev, ABS_MT_TRACKING_ID, -1);
#else
input_mt_slot(info->input_dev, touchId);
input_report_abs(info->input_dev, ABS_MT_PRESSURE, 0);
input_mt_report_slot_state(info->input_dev, tool, 0);
input_report_abs(info->input_dev, ABS_MT_TRACKING_ID, -1);
#endif
return true;
}
/* EventId : EVT_ID_MOTION_POINT */
#define fts_motion_pointer_event_handler fts_enter_pointer_event_handler
/* remap the motion event handler to the same function which handle the enter
* event */
/**
* Event handler for error events (EVT_ID_ERROR)
* Handle unexpected error events implementing recovery strategy and
* restoring the sensing status that the IC had before the error occurred
*/
static bool fts_error_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
int error = 0;
dev_info(info->dev, "%s: Received event %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3], event[4],
event[5],
event[6], event[7]);
switch (event[1]) {
case EVT_TYPE_ERROR_ESD:/* esd */
{
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/* The GTI handles to release all touches */
clear_touch_flags(info);
#else
/* before reset clear all slot */
release_all_touches(info);
#endif
fts_chip_powercycle(info, false);
error = fts_system_reset(info);
error |= fts_mode_handler(info, 0);
error |= fts_enableInterrupt(info, true);
if (error < OK)
dev_err(info->dev, "%s Cannot restore the device ERROR %08X\n",
__func__, error);
}
break;
case EVT_TYPE_ERROR_HARD_FAULT: /* hard fault */
case EVT_TYPE_ERROR_WATCHDOG: /* watch dog timer */
{
dumpErrorInfo(info, NULL, 0);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/* The GTI handles to release all touches */
clear_touch_flags(info);
#else
/* before reset clear all slots */
release_all_touches(info);
#endif
error = fts_system_reset(info);
error |= fts_mode_handler(info, 0);
error |= fts_enableInterrupt(info, true);
if (error < OK)
dev_err(info->dev, "%s Cannot reset the device ERROR %08X\n",
__func__, error);
}
break;
}
return false;
}
/**
* Event handler for controller ready event (EVT_ID_CONTROLLER_READY)
* Handle controller events received after unexpected reset of the IC updating
* the resets flag and restoring the proper sensing status
*/
static bool fts_controller_ready_event_handler(struct fts_ts_info *info,
unsigned char *event)
{
int error;
dev_info(info->dev, "%s: Received event %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3], event[4],
event[5], event[6], event[7]);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/* The GTI handles to release all touches. */
clear_touch_flags(info);
#else
release_all_touches(info);
#endif
setSystemResetedUp(info, 1);
setSystemResetedDown(info, 1);
error = fts_mode_handler(info, 0);
if (error < OK)
dev_err(info->dev, "%s Cannot restore the device status ERROR %08X\n",
__func__, error);
return false;
}
/**
* Event handler for status events (EVT_ID_STATUS_UPDATE)
* Handle status update events
*/
static bool fts_status_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
u8 grid_touch_status;
switch (event[1]) {
case EVT_TYPE_STATUS_ECHO:
if (event[2] == FTS_CMD_CUSTOM_W &&
event[3] == CUSTOM_CMD_CONTINUOUS_REPORT) {
dev_dbg(info->dev, "%s: Echo = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4], event[5],
event[6], event[7]);
} else {
dev_info(info->dev, "%s: Echo = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4], event[5],
event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_GPIO_CHAR_DET:
dev_info(info->dev, "%s: GPIO Charger Detect ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4], event[5],
event[6], event[7]);
break;
case EVT_TYPE_STATUS_FORCE_CAL:
switch (event[2]) {
case 0x01:
dev_info(info->dev, "%s: Sense on Force cal = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_info(info->dev, "%s: Host command Force cal = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x10:
dev_info(info->dev, "%s: Mutual frame drop Force cal = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x11:
dev_info(info->dev, "%s: Mutual pure raw Force cal = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x20:
dev_info(info->dev, "%s: Self detect negative Force cal = %02X"
" %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x21:
dev_info(info->dev, "%s: Self touch negative Force cal = %02X"
" %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x22:
dev_info(info->dev, "%s: Self detect frame flatness Force cal ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x23:
dev_info(info->dev, "%s: Self touch frame flatness Force cal ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x30:
dev_info(info->dev, "%s: Invalid mutual Force cal = %02X"
" %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x31:
dev_info(info->dev, "%s: Invalid differential mutual Force cal ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x32:
dev_info(info->dev, "%s: Invalid Self Force cal = %02X"
" %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x33:
dev_info(info->dev, "%s: Invalid Self island Force cal = %02X"
" %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x34:
dev_info(info->dev, "%s: Invalid Self force touch Force cal ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x35:
dev_info(info->dev, "%s: Mutual frame flatness Force cal ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Unknown force cal = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_FRAME_DROP:
dev_info(info->dev, "%s: Frame drop = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case EVT_TYPE_STATUS_SS_RAW_SAT:
if (event[2] == 1)
dev_info(info->dev, "%s: SS Raw Saturated = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
else
dev_info(info->dev, "%s: SS Raw No more Saturated = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case EVT_TYPE_STATUS_WATER:
switch (event[2]) {
case 0x00:
dev_info(info->dev, "%s: Water Mode Entry by BLD with real"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x01:
dev_info(info->dev, "%s: Water Mode Entry by BLD with rom"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_info(info->dev, "%s: Water Mode Entry by MID with real"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x03:
dev_info(info->dev, "%s: Water Mode leave by BLD with real"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x04:
dev_info(info->dev, "%s: Water Mode leave by BLD with rom"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x05:
dev_info(info->dev, "%s: Water Mode leave by MID with real"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Unknown water mode = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_PRE_WAT_DET:
if (event[2] == 1)
dev_info(info->dev, "%s: Previous Water entry ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
else
dev_info(info->dev, "%s: Previous Water leave ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case EVT_TYPE_STATUS_NOISE:
if(info->scanning_frequency != event[3]) {
dev_info(info->dev, "%s: Scanning frequency changed from %02X to %02X\n",
__func__, info->scanning_frequency, event[3]);
dev_info(info->dev, "%s: Noise Status Event = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3],
event[4], event[5], event[6], event[7]);
info->scanning_frequency = event[3];
} else {
dev_dbg(info->dev, "%s: Noise Status Event = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_STIMPAD:
switch (event[2]) {
case 0x00:
dev_dbg(info->dev, "%s: Stimpad disable event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x01:
dev_dbg(info->dev, "%s: Stimpad enable event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_dbg(info->dev, "%s: Stimpad disable by signature invalid"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x03:
dev_dbg(info->dev, "%s: Stimpad disable by nodes count invalid"
" raw frame = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_dbg(info->dev, "%s: Unknown stimpad status = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_NO_TOUCH:
dev_info(info->dev, "%s: No Touch Status Event = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4], event[5],
event[6], event[7]);
break;
case EVT_TYPE_STATUS_IDLE:
dev_info(info->dev, "%s: Idle Status Event = %02X %02X"
" %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4], event[5],
event[6], event[7]);
break;
case EVT_TYPE_STATUS_PALM_TOUCH:
switch (event[2]) {
case 0x01:
dev_info(info->dev, "%s: Palm block entry event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_info(info->dev, "%s: Palm block release event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Unknown palm touch status = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_GRIP_TOUCH:
grid_touch_status = (event[2] & 0xF0) >> 4;
switch (grid_touch_status) {
case 0x01:
dev_info(info->dev, "%s: Grip Touch entry event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_info(info->dev, "%s: Grip Touch release event"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Unknown grip touch status = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_GOLDEN_RAW_VAL:
switch (event[2]) {
case 0x01:
dev_info(info->dev, "%s: Golden Raw Validation Pass"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case 0x02:
dev_info(info->dev, "%s: Golden Raw Validation Fail"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Unknown golden raw validation status = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
}
break;
case EVT_TYPE_STATUS_GOLDEN_RAW_ERR:
dev_info(info->dev, "%s: Golden Raw Data Abnormal"
" = %02X %02X %02X %02X %02X %02X\n",
__func__, event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
case EVT_TYPE_STATUS_HIGH_SENSITY:
dev_info(info->dev, "%s: High Sensitity %s ="
" %02X %02X %02X %02X %02X %02X\n",
__func__, (event[2] == 1) ? "enabled" : "disabled",
event[2], event[3], event[4],
event[5], event[6], event[7]);
break;
default:
dev_info(info->dev, "%s: Received unknown status event = %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3],
event[4], event[5], event[6], event[7]);
break;
}
return false;
}
/* key events reported in the user report */
#ifdef PHONE_KEY
/* TODO: the customer should handle the events coming from the keys according
* his needs
* (this is just an sample code that report the click of a button after a
* press->release action) */
/**
* Event handler for status events (EVT_TYPE_USER_KEY)
* Handle keys update events, the third byte of the event is a bitmask,
* if the bit set means that the corresponding key is pressed.
*/
static void fts_key_event_handler(struct fts_ts_info *info,
unsigned char *event)
{
/* int value; */
dev_info(info->dev, "%s: Received event %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3], event[4],
event[5], event[6], event[7]);
if (event[0] == EVT_ID_USER_REPORT && event[1] == EVT_TYPE_USER_KEY) {
/* event[2] contain the bitmask of the keys that are actually
* pressed */
if ((event[2] & FTS_KEY_0) == 0 && (info->key_mask & FTS_KEY_0) > 0) {
dev_info(info->dev, "%s: Button HOME pressed and released!\n",
__func__);
fts_input_report_key(info, KEY_HOMEPAGE);
}
if ((event[2] & FTS_KEY_1) == 0 && (info->key_mask & FTS_KEY_1) > 0) {
dev_info(info->dev, "%s: Button Back pressed and released!\n",
__func__);
fts_input_report_key(info, KEY_BACK);
}
if ((event[2] & FTS_KEY_2) == 0 && (info->key_mask & FTS_KEY_2) > 0) {
dev_info(info->dev, "%s: Button Menu pressed!\n", __func__);
fts_input_report_key(info, KEY_MENU);
}
info->key_mask = event[2];
} else
dev_err(info->dev, "%s: Invalid event passed as argument!\n", __func__);
}
#endif
/* gesture event must be handled in the user event handler */
#ifdef GESTURE_MODE
/* TODO: Customer should implement their own actions in respond of a gesture
* event.
* This is an example that simply print the gesture received and simulate
* the click on a different button for each gesture. */
/**
* Event handler for gesture events (EVT_TYPE_USER_GESTURE)
* Handle gesture events and simulate the click on a different button
* for any gesture detected (@link gesture_opt Gesture IDs @endlink)
*/
static void fts_gesture_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
int value;
int needCoords = 0;
dev_info(info->dev, "gesture event data: %02X %02X %02X %02X %02X %02X %02X %02X\n",
event[0], event[1], event[2], event[3], event[4],
event[5], event[6], event[7]);
if (event[0] == EVT_ID_USER_REPORT && event[1] ==
EVT_TYPE_USER_GESTURE) {
needCoords = 1;
/* default read the coordinates for all gestures excluding
* double tap */
switch (event[2]) {
case GEST_ID_DBLTAP:
value = KEY_WAKEUP;
dev_info(info->dev, "%s: double tap !\n", __func__);
needCoords = 0;
break;
case GEST_ID_AT:
value = KEY_WWW;
dev_info(info->dev, "%s: @ !\n", __func__);
break;
case GEST_ID_C:
value = KEY_C;
dev_info(info->dev, "%s: C !\n", __func__);
break;
case GEST_ID_E:
value = KEY_E;
dev_info(info->dev, "%s: e !\n", __func__);
break;
case GEST_ID_F:
value = KEY_F;
dev_info(info->dev, "%s: F !\n", __func__);
break;
case GEST_ID_L:
value = KEY_L;
dev_info(info->dev, "%s: L !\n", __func__);
break;
case GEST_ID_M:
value = KEY_M;
dev_info(info->dev, "%s: M !\n", __func__);
break;
case GEST_ID_O:
value = KEY_O;
dev_info(info->dev, "%s: O !\n", __func__);
break;
case GEST_ID_S:
value = KEY_S;
dev_info(info->dev, "%s: S !\n", __func__);
break;
case GEST_ID_V:
value = KEY_V;
dev_info(info->dev, "%s: V !\n", __func__);
break;
case GEST_ID_W:
value = KEY_W;
dev_info(info->dev, "%s: W !\n", __func__);
break;
case GEST_ID_Z:
value = KEY_Z;
dev_info(info->dev, "%s: Z !\n", __func__);
break;
case GEST_ID_RIGHT_1F:
value = KEY_RIGHT;
dev_info(info->dev, "%s: -> !\n", __func__);
break;
case GEST_ID_LEFT_1F:
value = KEY_LEFT;
dev_info(info->dev, "%s: <- !\n", __func__);
break;
case GEST_ID_UP_1F:
value = KEY_UP;
dev_info(info->dev, "%s: UP !\n", __func__);
break;
case GEST_ID_DOWN_1F:
value = KEY_DOWN;
dev_info(info->dev, "%s: DOWN !\n", __func__);
break;
case GEST_ID_CARET:
value = KEY_APOSTROPHE;
dev_info(info->dev, "%s: ^ !\n", __func__);
break;
case GEST_ID_LEFTBRACE:
value = KEY_LEFTBRACE;
dev_info(info->dev, "%s: < !\n", __func__);
break;
case GEST_ID_RIGHTBRACE:
value = KEY_RIGHTBRACE;
dev_info(info->dev, "%s: > !\n", __func__);
break;
default:
dev_err(info->dev, "%s: No valid GestureID!\n", __func__);
goto gesture_done;
}
if (needCoords == 1)
readGestureCoords(info, event);
fts_input_report_key(info, value);
gesture_done:
return;
} else
dev_err(info->dev, "%s: Invalid event passed as argument!\n", __func__);
}
#endif
/**
* Event handler for user report events (EVT_ID_USER_REPORT)
* Handle user events reported by the FW due to some interaction triggered
* by an external user (press keys, perform gestures, etc.)
*/
static bool fts_user_report_event_handler(struct fts_ts_info *info, unsigned
char *event)
{
switch (event[1]) {
#ifdef PHONE_KEY
case EVT_TYPE_USER_KEY:
fts_key_event_handler(info, event);
break;
#endif
case EVT_TYPE_USER_PROXIMITY:
if (event[2] == 0)
dev_err(info->dev, "%s No proximity!\n", __func__);
else
dev_err(info->dev, "%s Proximity Detected!\n", __func__);
break;
#ifdef GESTURE_MODE
case EVT_TYPE_USER_GESTURE:
fts_gesture_event_handler(info, event);
break;
#endif
default:
dev_err(info->dev, "%s: Received unhandled user report event = %02X %02X %02X %02X %02X %02X %02X %02X\n",
__func__, event[0], event[1], event[2], event[3],
event[4], event[5], event[6], event[7]);
break;
}
return false;
}
/**
* Bottom Half Interrupt Handler function
* This handler is called each time there is at least one new event in the FIFO
* and the interrupt pin of the IC goes low. It will read all the events from
* the FIFO and dispatch them to the proper event handler according the event
* ID
*/
static irqreturn_t fts_interrupt_handler(int irq, void *handle)
{
struct fts_ts_info *info = handle;
int error = 0, count = 0;
unsigned char regAdd = FIFO_CMD_READALL;
unsigned char data[FIFO_EVENT_SIZE * FIFO_DEPTH];
unsigned char eventId;
const unsigned char EVENTS_REMAINING_POS = 7;
const unsigned char EVENTS_REMAINING_MASK = 0x1F;
unsigned char events_remaining = 0;
unsigned char *evt_data;
bool has_pointer_event = false;
int event_start_idx = -1;
/* Read the first FIFO event and the number of events remaining */
error = fts_writeReadU8UX(info, regAdd, 0, 0, data, FIFO_EVENT_SIZE,
DUMMY_FIFO);
events_remaining = data[EVENTS_REMAINING_POS] & EVENTS_REMAINING_MASK;
events_remaining = (events_remaining > FIFO_DEPTH - 1) ?
FIFO_DEPTH - 1 : events_remaining;
/* Drain the rest of the FIFO, up to 31 events */
if (error == OK && events_remaining > 0) {
error = fts_writeReadU8UX(info, regAdd, 0, 0,
&data[FIFO_EVENT_SIZE],
FIFO_EVENT_SIZE * events_remaining,
DUMMY_FIFO);
}
if (error != OK) {
dev_err(info->dev, "Error (%08X) while reading from FIFO in fts_event_handler\n",
error);
} else {
evt_data = &data[0];
if (evt_data[0] == EVT_ID_NOEVENT)
goto exit;
/*
* Parsing all the events ID and specifically handle the
* EVT_ID_CONTROLLER_READY and EVT_ID_ERROR at first.
*/
for (count = 0; count < events_remaining + 1; count++) {
evt_data = &data[count * FIFO_EVENT_SIZE];
if (!VALID_EVENT_TYPE(evt_data[0])) {
dev_err(info->dev, "Got invalid event type: %*ph\n", 8, evt_data);
goto exit;
}
switch (GET_EVENT_TYPE(evt_data[0])) {
case EVT_ID_CONTROLLER_READY:
case EVT_ID_ERROR:
eventId = evt_data[0] >> 4;
info->event_dispatch_table[eventId](info, evt_data);
event_start_idx = count;
break;
case EVT_ID_ENTER_POINT:
case EVT_ID_MOTION_POINT:
case EVT_ID_LEAVE_POINT:
has_pointer_event |= true;
break;
default:
break;
}
}
/* Only lock input report when there is pointer event. */
if (has_pointer_event) {
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_input_lock(info->gti);
goog_input_set_timestamp(info->gti, info->input_dev, info->timestamp);
#else
mutex_lock(&info->input_report_mutex);
input_set_timestamp(info->input_dev, info->timestamp);
#endif
}
/*
* Handle the remaining events except for
* EVT_ID_CONTROLLER_READY and EVT_ID_ERROR.
*/
for (count = max(event_start_idx + 1, 0); count < events_remaining + 1; count++) {
evt_data = &data[count * FIFO_EVENT_SIZE];
eventId = evt_data[0] >> 4;
/* Ensure event ID is within bounds */
if (eventId < NUM_EVT_ID)
info->event_dispatch_table[eventId](info, evt_data);
}
if (has_pointer_event) {
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
if (info->touch_id == 0)
goog_input_report_key(info->gti, info->input_dev, BTN_TOUCH, 0);
goog_input_sync(info->gti, info->input_dev);
goog_input_unlock(info->gti);
#else
if (info->touch_id == 0)
input_report_key(info->input_dev, BTN_TOUCH, 0);
input_sync(info->input_dev);
mutex_unlock(&info->input_report_mutex);
#endif
}
}
exit:
return IRQ_HANDLED;
}
/*
* Read the display panel's extinfo from the display driver.
*
* The display driver finds out the extinfo is available for a panel based on
* the device tree, but cannot read the extinfo itself until the DSI bus is
* initialized. Since the extinfo is not guaranteed to be available at the time
* the touch driver is probed or even when the automatic firmware update work is
* run. The display driver's API for reading extinfo does allow a client to
* query the size of the expected data and whether it is available.
*
* This function retrieves the extinfo from the display driver with an optional
* retry period to poll the display driver before giving up.
*
* @return 0 if success, -EBUSY if timeout
*/
#if 1
static int fts_read_panel_extinfo(struct fts_ts_info *info, int wait_seconds)
{
return 0;
}
#else
static int fts_read_panel_extinfo(struct fts_ts_info *info, int wait_seconds)
{
const int RETRIES_PER_S = 4;
const int MS_PER_RETRY = 1000 / RETRIES_PER_S;
ssize_t len = -EBUSY;
int retries = (wait_seconds <= 0) ? 0 : wait_seconds * RETRIES_PER_S;
int ret = 0;
/* Was extinfo previously retrieved? */
if (info->extinfo.is_read)
return 0;
/* Extinfo should not be retrieved if the driver was unable to identify
* the panel via its panelmap. Consider the extinfo zero-length.
*/
if (!info->board->panel) {
info->extinfo.is_read = true;
info->extinfo.size = 0;
return 0;
}
/* Obtain buffer size */
len = dsi_panel_read_vendor_extinfo(info->board->panel, NULL, 0);
if (len == 0) {
/* No extinfo to be consumed */
info->extinfo.size = 0;
info->extinfo.is_read = true;
return 0;
} else if (len < 0) {
ret = len;
dev_err(info->dev, "%s: dsi_panel_read_vendor_extinfo returned unexpected error = %d.\n",
__func__, ret);
goto error;
} else {
info->extinfo.data = kzalloc(len, GFP_KERNEL);
if (!info->extinfo.data) {
dev_err(info->dev, "%s: failed to allocate extinfo. len=%d.\n",
__func__, len);
ret = -ENOMEM;
goto error;
}
info->extinfo.size = len;
}
/* Read vendor extinfo data */
do {
len = dsi_panel_read_vendor_extinfo(info->board->panel,
info->extinfo.data,
info->extinfo.size);
if (len == -EBUSY) {
dev_dbg(info->dev, "%s: sleeping %dms.\n", __func__,
MS_PER_RETRY);
msleep(MS_PER_RETRY);
} else if (len == info->extinfo.size) {
info->extinfo.is_read = true;
dev_dbg(info->dev, "%s: Ultimately waited %d seconds.\n",
__func__,
wait_seconds - (retries / RETRIES_PER_S));
return 0;
} else {
dev_err(info->dev, "%s: dsi_panel_read_vendor_extinfo returned error = %d\n",
__func__, len);
ret = len;
goto error;
}
} while (--retries > 0);
/* Time out after retrying for wait_seconds */
dev_err(info->dev, "%s: Timed out after waiting %d seconds.\n", __func__,
wait_seconds);
ret = -EBUSY;
error:
kfree(info->extinfo.data);
info->extinfo.data = NULL;
info->extinfo.size = 0;
info->extinfo.is_read = false;
return ret;
}
#endif
/*
* Determine the display panel based on the device tree and any extinfo read
* from the panel.
*
* Basic panel detection (e.g., unique part numbers) is performed by polling for
* connected drm_panels. Next, an override table from the device tree is used to
* parse the panel's extended info to distinguish between panel varients that
* require different firmware.
*/
static int fts_identify_panel(struct fts_ts_info *info)
{
/* Formatting of EXTINFO rows provided in the device trees */
const int EXTINFO_ROW_ELEMS = 5;
const int EXTINFO_ROW_SIZE = EXTINFO_ROW_ELEMS * sizeof(u32);
struct device_node *np = info->dev->of_node;
u32 panel_index = info->board->initial_panel_index;
int extinfo_rows;
u32 filter_panel_index, filter_extinfo_index, filter_extinfo_mask;
u32 filter_extinfo_value, filter_extinfo_fw;
const char *name;
int i;
int ret = 0;
if (!info->extinfo.is_read) {
/* Extinfo was not read. Attempt one read before aborting */
ret = fts_read_panel_extinfo(info, 0);
if (ret < 0) {
dev_err(info->dev, "%s: fts_read_panel_extinfo failed with ret=%d.\n",
__func__, ret);
goto get_panel_info_failed;
}
}
/* Read the extinfo override table to determine if there are is any
* reason to select a different firmware for the panel.
*/
if (of_property_read_bool(np, "st,extinfo_override_table")) {
extinfo_rows = of_property_count_elems_of_size(
np, "st,extinfo_override_table",
EXTINFO_ROW_SIZE);
for (i = 0; i < extinfo_rows; i++) {
of_property_read_u32_index(
np, "st,extinfo_override_table",
i * EXTINFO_ROW_ELEMS + 0,
&filter_panel_index);
of_property_read_u32_index(
np, "st,extinfo_override_table",
i * EXTINFO_ROW_ELEMS + 1,
&filter_extinfo_index);
of_property_read_u32_index(
np, "st,extinfo_override_table",
i * EXTINFO_ROW_ELEMS + 2,
&filter_extinfo_mask);
of_property_read_u32_index(
np, "st,extinfo_override_table",
i * EXTINFO_ROW_ELEMS + 3,
&filter_extinfo_value);
of_property_read_u32_index(
np, "st,extinfo_override_table",
i * EXTINFO_ROW_ELEMS + 4,
&filter_extinfo_fw);
if (panel_index != filter_panel_index)
continue;
else if (filter_extinfo_index >= info->extinfo.size) {
dev_err(info->dev, "%s: extinfo index is out of bounds (%d >= %d) in row %d of extinfo_override_table.\n",
__func__, filter_extinfo_index,
info->extinfo.size, i);
continue;
} else if ((info->extinfo.data[filter_extinfo_index] &
filter_extinfo_mask) ==
filter_extinfo_value) {
/* Override the panel_index as specified in the
* override table.
*/
panel_index = filter_extinfo_fw;
dev_info(info->dev, "%s: Overriding with row=%d, panel_index=%d.\n",
__func__, i, panel_index);
break;
}
}
} else {
dev_err(info->dev, "%s: of_property_read_bool(np, \"st,extinfo_override_table\") failed.\n",
__func__);
}
//---------------------------------------------------------------------
// Read firmware name, limits file name, and sensor inversion based on
// the final panel index. In order to handle the case where the DRM
// panel was not detected from the list in the device tree, fall back to
// using predefined FW and limits paths hardcoded into the driver.
// --------------------------------------------------------------------
get_panel_info_failed:
name = NULL;
of_property_read_string_index(np, "st,firmware_names",
panel_index, &name);
if (!name)
info->board->fw_name = PATH_FILE_FW;
else
info->board->fw_name = name;
dev_info(info->dev, "firmware name = %s\n", info->board->fw_name);
name = NULL;
of_property_read_string_index(np, "st,limits_names",
panel_index, &name);
if (!name)
info->board->limits_name = LIMITS_FILE;
else
info->board->limits_name = name;
dev_info(info->dev, "limits name = %s\n", info->board->limits_name);
return ret;
}
/**
* Implement the fw update and initialization flow of the IC that should
* be executed at every boot up. The function perform a fw update of the
* IC in case of crc error or a new fw version and then understand if the
* IC need to be re-initialized again.
*
* @return OK if success or an error code which specify the type of error
* encountered
*/
static int fts_fw_update(struct fts_ts_info *info)
{
u8 error_to_search[4] = { EVT_TYPE_ERROR_CRC_CX_HEAD,
EVT_TYPE_ERROR_CRC_CX,
EVT_TYPE_ERROR_CRC_CX_SUB_HEAD,
EVT_TYPE_ERROR_CRC_CX_SUB };
int ret;
int error = 0;
int init_type = NO_INIT;
int index;
int prop_len = 0;
struct device_node *np = info->dev->of_node;
#if defined(PRE_SAVED_METHOD) || defined(COMPUTE_INIT_METHOD)
/* Not decided yet.
* Still need the firmware CX AFE version to decide the final value.
*/
int keep_cx = FTS_CX_DEFAULT_MODE;
#else
int keep_cx = CX_ERASE;
#endif
/* Read extinfo from display driver. Wait for up to ten seconds if
* there is extinfo to read but is not yet available.
*/
ret = fts_read_panel_extinfo(info, 10);
if (ret < 0)
dev_err(info->dev, "%s: Failed or timed out during read of extinfo. ret=%d\n",
__func__, ret);
/* Identify panel given extinfo that may have been received. */
ret = fts_identify_panel(info);
if (ret < 0) {
dev_err(info->dev, "%s: Encountered error while identifying display panel. ret=%d\n",
__func__, ret);
goto out;
}
dev_info(info->dev, "Fw Auto Update is starting...\n");
/* Check CRC status */
ret = fts_crc_check(info);
if (ret > OK) {
dev_err(info->dev, "%s: CRC Error or NO FW!\n", __func__);
info->reflash_fw = 1;
} else {
dev_info(info->dev, "%s: NO CRC Error or Impossible to read CRC register!\n",
__func__);
}
if (of_property_read_bool(np, "st,force-pi-cfg-ver-map")) {
prop_len = of_property_count_u32_elems(np,
"st,force-pi-cfg-ver-map");
info->board->force_pi_cfg_ver = devm_kzalloc(info->dev,
sizeof(u32) * prop_len, GFP_KERNEL);
if (info->board->force_pi_cfg_ver != NULL) {
for (index = 0; index < prop_len; index++) {
of_property_read_u32_index(np,
"st,force-pi-cfg-ver-map",
index,
&info->board->force_pi_cfg_ver[index]);
dev_info(info->dev, "%s: force PI config version: %04X",
__func__,
info->board->force_pi_cfg_ver[index]);
if(info->systemInfo.u16_cfgVer ==
info->board->force_pi_cfg_ver[index]) {
dev_info(info->dev, "%s System config version %04X, do panel init",
__func__, info->systemInfo.u16_cfgVer);
init_type = SPECIAL_PANEL_INIT;
}
}
} else {
dev_err(info->dev, "%s: force_pi_cfg_ver is NULL", __func__);
}
} else {
dev_info(info->dev, "%s: of_property_read_bool(np, \"st,force-pi-cfg-ver-map\") failed.\n",
__func__);
}
if (info->board->auto_fw_update) {
ret = flashProcedure(info, info->board->fw_name, info->reflash_fw,
keep_cx);
if ((ret & 0xF000000F) == ERROR_FILE_NOT_FOUND) {
dev_err(info->dev, "%s: firmware file not found. Bypassing update.\n",
__func__);
ret = 0;
goto out;
} else if ((ret & 0xFF000000) == ERROR_FLASH_PROCEDURE) {
dev_err(info->dev, "%s: firmware update failed; retrying. ERROR %08X\n",
__func__, ret);
/* Power cycle the touch IC */
fts_chip_powercycle(info, false);
ret = flashProcedure(info, info->board->fw_name,
info->reflash_fw, keep_cx);
if ((ret & 0xFF000000) == ERROR_FLASH_PROCEDURE) {
dev_err(info->dev, "%s: firmware update failed again! ERROR %08X\n",
__func__, ret);
dev_err(info->dev, "Fw Auto Update Failed!\n");
return ret;
}
}
info->reflash_fw = 0;
info->fw_no_response = false;
}
dev_info(info->dev, "%s: Verifying if CX CRC Error...\n", __func__);
ret = fts_system_reset(info);
if (ret >= OK) {
ret = pollForErrorType(info, error_to_search, 4);
if (ret < OK) {
dev_info(info->dev, "%s: No Cx CRC Error Found!\n", __func__);
dev_info(info->dev, "%s: Verifying if Panel CRC Error...\n",
__func__);
error_to_search[0] = EVT_TYPE_ERROR_CRC_PANEL_HEAD;
error_to_search[1] = EVT_TYPE_ERROR_CRC_PANEL;
ret = pollForErrorType(info, error_to_search, 2);
if (ret < OK) {
dev_info(info->dev, "%s: No Panel CRC Error Found!\n",
__func__);
} else {
dev_err(info->dev, "%s: Panel CRC Error FOUND! CRC ERROR = %02X\n",
__func__, ret);
init_type = SPECIAL_PANEL_INIT;
}
} else {
dev_err(info->dev, "%s: Cx CRC Error FOUND! CRC ERROR = %02X\n",
__func__, ret);
/** This path of the code is used only in case there is
* a CRC error in code or config which not allow the fw
* to compute the CRC in the CX before
*/
#ifndef COMPUTE_INIT_METHOD
dev_info(info->dev, "%s: Try to recovery with CX in fw file...\n",
__func__);
ret = flashProcedure(info, info->board->fw_name, CRC_CX, 0);
dev_info(info->dev, "%s: Refresh panel init data", __func__);
#else
dev_info(info->dev, "%s: Select Full Panel Init...\n", __func__);
init_type = SPECIAL_FULL_PANEL_INIT;
#endif
}
} else {
/* Skip initialization because the real state is unknown */
dev_err(info->dev, "%s: Error while executing system reset! ERROR %08X\n",
__func__, ret);
}
if (init_type != SPECIAL_FULL_PANEL_INIT) {
#if defined(PRE_SAVED_METHOD) || defined(COMPUTE_INIT_METHOD)
if ((info->systemInfo.u8_cfgAfeVer !=
info->systemInfo.u8_cxAfeVer)
#ifdef COMPUTE_INIT_METHOD
|| ((info->systemInfo.u8_mpFlag != MP_FLAG_BOOT) &&
(info->systemInfo.u8_mpFlag != MP_FLAG_FACTORY) &&
(info->systemInfo.u8_mpFlag != MP_FLAG_NEED_FPI) &&
/* If skip_fpi_for_unset_mpflag is not set,
* bypass MP_FLAG_UNSET check.
* If skip_fpi_for_unset_mpflag is set,
* then check if mpFlag != MP_FLAG_UNSET.
*/
((info->board->skip_fpi_for_unset_mpflag == false) ||
(info->systemInfo.u8_mpFlag != MP_FLAG_UNSET))
)
#endif
) {
init_type = SPECIAL_FULL_PANEL_INIT;
dev_err(info->dev,
"%s: Different CX AFE Ver: %02X != %02X or MpFlag = %02X... Execute FULL Panel Init!\n",
__func__, info->systemInfo.u8_cfgAfeVer,
info->systemInfo.u8_cxAfeVer,
info->systemInfo.u8_mpFlag);
} else
#endif
if (info->systemInfo.u8_cfgAfeVer !=
info->systemInfo.u8_panelCfgAfeVer) {
init_type = SPECIAL_PANEL_INIT;
dev_err(info->dev, "%s: Different Panel AFE Ver: %02X != %02X... Execute Panel Init!\n",
__func__, info->systemInfo.u8_cfgAfeVer,
info->systemInfo.u8_panelCfgAfeVer);
}
}
out:
if (init_type != NO_INIT) { /* initialization status not correct or
* after FW complete update, do
* initialization.
*/
error = fts_chip_initialization(info, init_type);
if (error < OK) {
dev_err(info->dev, "%s: Cannot initialize the chip ERROR %08X\n",
__func__, error);
}
/* Reset after initialization */
ret = fts_system_reset(info);
if (ret < OK) {
dev_err(info->dev, "%s: Reset failed, ERROR %08X\n", __func__,
ret);
}
}
error = fts_init_sensing(info);
if (error < OK) {
dev_err(info->dev, "Cannot initialize the hardware device ERROR %08X\n",
error);
}
dev_err(info->dev, "Fw Update Finished! error = %08X\n", error);
return error;
}
/**
* Function called by the delayed workthread executed after the probe in
* order to perform the fw update flow
* @see fts_fw_update()
*/
static void fts_fw_update_auto(struct work_struct *work)
{
struct delayed_work *fwu_work = container_of(work, struct delayed_work,
work);
struct fts_ts_info *info = container_of(fwu_work, struct fts_ts_info,
fwu_work);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_pm_wake_lock(info->gti, GTI_PM_WAKELOCK_TYPE_FW_UPDATE, false);
#endif
fts_fw_update(info);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_pm_wake_unlock_nosync(info->gti, GTI_PM_WAKELOCK_TYPE_FW_UPDATE);
#endif
}
/**
* Save the golden MS raw data to the touch IC if firmware has separated it
* from the PI process.
*/
int save_golden_ms_raw(struct fts_ts_info *info)
{
u8 cmd[3] = {0xC0, 0x01, 0x01};
int ret = 0;
ret = fts_write(info, cmd, 3);
if (ret < 0)
dev_err(info->dev, "Fail to save golden MS raw, ret = %d", ret);
else {
mdelay(150); /* Time to secure the saving process (90 ms) */
dev_info(info->dev, "Golden MS raw is saved!");
}
return ret;
}
/* TODO: define if need to do the full mp at the boot */
/**
* Execute the initialization of the IC (supporting a retry mechanism),
* checking also the resulting data
* @see production_test_main()
*/
static int fts_chip_initialization(struct fts_ts_info *info, int init_type)
{
int ret2 = 0;
int retry;
int initretrycnt = 0;
#ifdef COMPUTE_INIT_METHOD
const char *limits_file = info->board->limits_name;
#endif
/* initialization error, retry initialization */
for (retry = 0; retry < RETRY_INIT_BOOT; retry++) {
#ifndef COMPUTE_INIT_METHOD
ret2 = production_test_initialization(info, init_type);
if (ret2 == OK &&
info->board->separate_save_golden_ms_raw_cmd)
save_golden_ms_raw(info);
#else
ret2 = production_test_main(info, limits_file, 1, init_type,
MP_FLAG_BOOT);
#endif
if (ret2 == OK)
break;
initretrycnt++;
dev_err(info->dev, "initialization cycle count = %04d - ERROR %08X\n",
initretrycnt, ret2);
fts_chip_powercycle(info, false);
}
if (ret2 < OK) /* initialization error */
dev_err(info->dev, "fts initialization failed %d times\n",
RETRY_INIT_BOOT);
return ret2;
}
static irqreturn_t fts_isr(int irq, void *handle)
{
struct fts_ts_info *info = handle;
info->timestamp = ktime_get();
return IRQ_WAKE_THREAD;
}
/**
* Initialize the dispatch table with the event handlers for any possible event
* ID
* Set IRQ pin behavior (level triggered low)
* Register top half interrupt handler function.
* @see fts_interrupt_handler()
*/
static int fts_interrupt_install(struct fts_ts_info *info)
{
int i, error = 0;
info->event_dispatch_table = kzalloc(sizeof(event_dispatch_handler_t) *
NUM_EVT_ID, GFP_KERNEL);
if (!info->event_dispatch_table) {
dev_err(info->dev, "OOM allocating event dispatch table\n");
return -ENOMEM;
}
for (i = 0; i < NUM_EVT_ID; i++)
info->event_dispatch_table[i] = fts_nop_event_handler;
install_handler(info, ENTER_POINT, enter_pointer);
install_handler(info, LEAVE_POINT, leave_pointer);
install_handler(info, MOTION_POINT, motion_pointer);
install_handler(info, ERROR, error);
install_handler(info, CONTROLLER_READY, controller_ready);
install_handler(info, STATUS_UPDATE, status);
install_handler(info, USER_REPORT, user_report);
error = goog_request_threaded_irq(info->gti, info->client->irq, fts_isr,
fts_interrupt_handler, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
FTS_TS_DRV_NAME, info);
info->irq_enabled = true;
if (error) {
dev_err(info->dev, "Request irq failed\n");
kfree(info->event_dispatch_table);
goto exit;
}
/* disable interrupts in any case */
error = fts_enableInterrupt(info, false);
exit:
return error;
}
/**
* Clean the dispatch table and the free the IRQ.
* This function is called when the driver need to be removed
*/
static void fts_interrupt_uninstall(struct fts_ts_info *info)
{
fts_enableInterrupt(info, false);
kfree(info->event_dispatch_table);
free_irq(info->client->irq, info);
}
/**@}*/
/**
* This function try to attempt to communicate with the IC for the first time
* during the boot up process in order to read the necessary info for the
* following stages.
* The function execute a system reset, read fundamental info (system info)
* @return OK if success or an error code which specify the type of error
*/
static int fts_init(struct fts_ts_info *info)
{
int error;
error = fts_system_reset(info);
/*
* If it's not bus error, it's possible that there is no FW or FW
* broken so we continue to flash.
*/
if (error < OK && isBusError(error)) {
dev_err(info->dev, "Cannot reset the device! ERROR %08X\n", error);
return error;
}
if (error == (ERROR_TIMEOUT | ERROR_SYSTEM_RESET_FAIL)) {
info->fw_no_response = true;
dev_err(info->dev, "Setting default Sys INFO!\n");
error = defaultSysInfo(info, 0);
} else {
error = readSysInfo(info, 0); /* system reset OK */
if (error < OK) {
if (!isBusError(error))
error = OK;
dev_err(info->dev, "Cannot read Sys Info! ERROR %08X\n",
error);
}
}
return error;
}
/**
* Execute a power cycle in the IC, toggling the power lines (AVDD and DVDD)
* @param info pointer to fts_ts_info struct which contain information of the
* regulators
* @param wait_drain to drain the AVDD/DVDD before reenable
* @return 0 if success or another value if fail
*/
int fts_chip_powercycle(struct fts_ts_info *info, bool wait_drain)
{
int error = 0;
dev_info(info->dev, "%s: Power Cycle Starting...\n", __func__);
dev_info(info->dev, "%s: Disabling IRQ...\n", __func__);
/** if IRQ pin is short with DVDD a call to the ISR will triggered when
* the regulator is turned off if IRQ not disabled */
fts_enableInterrupt(info, false);
if (info->vdd_reg) {
error = regulator_disable(info->vdd_reg);
if (error < 0)
dev_err(info->dev, "%s: Failed to disable DVDD regulator\n",
__func__);
}
if (info->avdd_reg) {
error = regulator_disable(info->avdd_reg);
if (error < 0)
dev_err(info->dev, "%s: Failed to disable AVDD regulator\n",
__func__);
}
if (info->board->reset_gpio != GPIO_NOT_DEFINED) {
if (wait_drain)
usleep_range(15 * USEC_PER_MSEC, 15 * USEC_PER_MSEC + 100);
gpio_set_value(info->board->reset_gpio, 0);
if (wait_drain)
usleep_range(5 * USEC_PER_MSEC, 5 * USEC_PER_MSEC + 100);
} else {
mdelay(300);
}
/* in FTI power up first the digital and then the analog */
if (info->vdd_reg) {
error = regulator_enable(info->vdd_reg);
if (error < 0)
dev_err(info->dev, "%s: Failed to enable DVDD regulator\n",
__func__);
}
mdelay(1);
if (info->avdd_reg) {
error = regulator_enable(info->avdd_reg);
if (error < 0)
dev_err(info->dev, "%s: Failed to enable AVDD regulator\n",
__func__);
}
mdelay(5); /* time needed by the regulators for reaching the regime
* values */
if (info->board->reset_gpio != GPIO_NOT_DEFINED) {
mdelay(10); /* time to wait before bring up the reset
* gpio after the power up of the regulators */
gpio_set_value(info->board->reset_gpio, 1);
}
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/* The GTI handles to release all touches */
clear_touch_flags(info);
#else
release_all_touches(info);
#endif
dev_info(info->dev, "%s: Power Cycle Finished! ERROR CODE = %08x\n",
__func__, error);
setSystemResetedUp(info, 1);
setSystemResetedDown(info, 1);
return error;
}
/**
* Complete the boot up process, initializing the sensing of the IC according
* to the current setting chosen by the host
* Register the notifier for the suspend/resume actions and the event handler
* @return OK if success or an error code which specify the type of error
*/
static int fts_init_sensing(struct fts_ts_info *info)
{
int error = 0;
error |= fts_interrupt_install(info); /* register event handler */
error |= fts_mode_handler(info, 0); /* enable the features and
* sensing */
error |= fts_enableInterrupt(info, true); /* enable the interrupt */
if (error < OK)
dev_err(info->dev, "%s Init after Probe error (ERROR = %08X)\n",
__func__, error);
return error;
}
/* TODO: change this function according with the needs of customer in terms
* of feature to enable/disable */
/**
* @ingroup mode_section
* @{
*/
/**
* The function handle the switching of the mode in the IC enabling/disabling
* the sensing and the features set from the host
* @param info pointer to fts_ts_info which contains info about the device and
* its hw setup
* @param force if 1, the enabling/disabling command will be send even
* if the feature was already enabled/disabled otherwise it will judge if
* the feature changed status or the IC had a system reset
* @return OK if success or an error code which specify the type of error
*/
static int fts_mode_handler(struct fts_ts_info *info, int force)
{
int res = OK;
int ret = OK;
u8 settings[4] = { 0 };
/* disable irq wake because resuming from gesture mode */
if (IS_POWER_MODE(info->mode, SCAN_MODE_LOW_POWER) &&
(info->resume_bit == 1))
disable_irq_wake(info->client->irq);
info->mode = MODE_NOTHING; /* initialize the mode to nothing
* in order to be updated depending
* on the features enabled */
dev_dbg(info->dev, "%s: Mode Handler starting...\n", __func__);
switch (info->resume_bit) {
case 0: /* screen down */
dev_dbg(info->dev, "%s: Screen OFF...\n", __func__);
/* do sense off in order to avoid the flooding of the fifo with
* touch events if someone is touching the panel during suspend
**/
dev_info(info->dev, "%s: Sense OFF!\n", __func__);
/* for speed reason (no need to check echo in this case and
* interrupt can be enabled) */
ret = setScanMode(info, SCAN_MODE_ACTIVE, 0x00);
res |= ret; /* to avoid warning unsused ret variable when a
* ll the features are disabled */
#ifdef GESTURE_MODE
if (info->gesture_enabled == 1) {
dev_info(info->dev, "%s: enter in gesture mode !\n",
__func__);
res = enterGestureMode(info, isSystemResettedDown(info));
if (res >= OK) {
enable_irq_wake(info->client->irq);
fromIDtoMask(FEAT_SEL_GESTURE,
(u8 *)&info->mode,
sizeof(info->mode));
MODE_LOW_POWER(info->mode, 0);
} else
dev_err(info->dev, "%s: enterGestureMode failed! ERROR %08X recovery in senseOff...\n",
__func__, res);
}
#endif
setSystemResetedDown(info, 0);
fts_system_reset(info);
flushFIFO(info);
break;
case 1: /* screen up */
dev_dbg(info->dev, "%s: Screen ON...\n", __func__);
/* Set the features from GTI if GTI is enabled. */
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_notify_fw_status_changed(info->gti, GTI_FW_STATUS_RESET, NULL);
#else
#ifdef GLOVE_MODE
if ((info->glove_enabled == FEAT_ENABLE &&
isSystemResettedUp(info)) || force == 1) {
dev_info(info->dev, "%s: Glove Mode setting...\n", __func__);
settings[0] = info->glove_enabled;
/* required to satisfy also the disable case */
ret = setFeatures(info, FEAT_SEL_GLOVE, settings, 1);
if (ret < OK)
dev_err(info->dev, "%s: error during setting GLOVE_MODE! ERROR %08X\n",
__func__, ret);
res |= ret;
if (ret >= OK && info->glove_enabled == FEAT_ENABLE) {
fromIDtoMask(FEAT_SEL_GLOVE, (u8 *)&info->mode,
sizeof(info->mode));
dev_info(info->dev, "%s: GLOVE_MODE Enabled!\n", __func__);
} else
dev_info(info->dev, "%s: GLOVE_MODE Disabled!\n", __func__);
}
#endif
#ifdef COVER_MODE
if ((info->cover_enabled == FEAT_ENABLE &&
isSystemResettedUp(info)) || force == 1) {
dev_info(info->dev, "%s: Cover Mode setting...\n", __func__);
settings[0] = info->cover_enabled;
ret = setFeatures(info, FEAT_SEL_COVER, settings, 1);
if (ret < OK)
dev_err(info->dev, "%s: error during setting COVER_MODE! ERROR %08X\n",
__func__, ret);
res |= ret;
if (ret >= OK && info->cover_enabled == FEAT_ENABLE) {
fromIDtoMask(FEAT_SEL_COVER, (u8 *)&info->mode,
sizeof(info->mode));
dev_info(info->dev, "%s: COVER_MODE Enabled!\n", __func__);
} else
dev_info(info->dev, "%s: COVER_MODE Disabled!\n", __func__);
}
#endif
#ifdef CHARGER_MODE
if ((info->charger_enabled > 0 && isSystemResettedUp(info)) ||
force == 1) {
dev_info(info->dev, "%s: Charger Mode setting...\n", __func__);
settings[0] = info->charger_enabled;
ret = setFeatures(info, FEAT_SEL_CHARGER, settings, 1);
if (ret < OK)
dev_err(info->dev, "%s: error during setting CHARGER_MODE! ERROR %08X\n",
__func__, ret);
res |= ret;
if (ret >= OK && info->charger_enabled == FEAT_ENABLE) {
fromIDtoMask(FEAT_SEL_CHARGER,
(u8 *)&info->mode,
sizeof(info->mode));
dev_info(info->dev, "%s: CHARGER_MODE Enabled!\n",
__func__);
} else
dev_info(info->dev, "%s: CHARGER_MODE Disabled!\n",
__func__);
}
#endif
#ifdef GRIP_MODE
if ((info->grip_enabled == FEAT_ENABLE &&
isSystemResettedUp(info)) || force == 1) {
dev_info(info->dev, "%s: Grip Mode setting...\n", __func__);
settings[0] = info->grip_enabled;
ret = setFeatures(info, FEAT_SEL_GRIP, settings, 1);
if (ret < OK)
dev_err(info->dev, "%s: error during setting GRIP_MODE! ERROR %08X\n",
__func__, ret);
res |= ret;
if (ret >= OK && info->grip_enabled == FEAT_ENABLE) {
fromIDtoMask(FEAT_SEL_GRIP, (u8 *)&info->mode,
sizeof(info->mode));
dev_info(info->dev, "%s: GRIP_MODE Enabled!\n", __func__);
} else
dev_info(info->dev, "%s: GRIP_MODE Disabled!\n", __func__);
}
#endif
#endif /* IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE) */
/* If some selective scan want to be enabled can be done
* an or of the following options
*/
/* settings[0] = ACTIVE_MULTI_TOUCH | ACTIVE_KEY |
* ACTIVE_HOVER | ACTIVE_PROXIMITY |
* ACTIVE_FORCE;
*/
settings[0] = 0xFF; /* enable all the possible scans mode
* supported by the config */
dev_info(info->dev, "%s: Sense ON!\n", __func__);
res |= setScanMode(info, SCAN_MODE_ACTIVE, settings[0]);
info->mode |= (SCAN_MODE_ACTIVE << 24);
MODE_ACTIVE(info->mode, settings[0]);
setSystemResetedUp(info, 0);
break;
default:
dev_err(info->dev, "%s: invalid resume_bit value = %d! ERROR %08X\n",
__func__, info->resume_bit, ERROR_OP_NOT_ALLOW);
res = ERROR_OP_NOT_ALLOW;
}
dev_info(info->dev, "%s: Mode Handler finished! res = %08X mode = %08X\n",
__func__, res, info->mode);
return res;
}
/* Report a finger down event on the long press gesture area then immediately
* report a cancel event(MT_TOOL_PALM).
*/
static void report_cancel_event(struct fts_ts_info *info)
{
dev_info(info->dev, "%s\n", __func__);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_input_lock(info->gti);
#else
mutex_lock(&info->input_report_mutex);
#endif
/* Finger down on UDFPS area. */
input_mt_slot(info->input_dev, 0);
input_report_key(info->input_dev, BTN_TOUCH, 1);
input_mt_report_slot_state(info->input_dev, MT_TOOL_FINGER, 1);
input_report_abs(info->input_dev, ABS_MT_POSITION_X, info->board->udfps_x);
input_report_abs(info->input_dev, ABS_MT_POSITION_Y, info->board->udfps_y);
input_report_abs(info->input_dev, ABS_MT_TOUCH_MAJOR, 200);
input_report_abs(info->input_dev, ABS_MT_TOUCH_MINOR, 200);
#ifndef SKIP_PRESSURE
input_report_abs(info->input_dev, ABS_MT_PRESSURE, 1);
#endif
input_report_abs(info->input_dev, ABS_MT_ORIENTATION, 0);
input_sync(info->input_dev);
/* Report MT_TOOL_PALM for canceling the touch event. */
input_mt_slot(info->input_dev, 0);
input_report_key(info->input_dev, BTN_TOUCH, 1);
input_mt_report_slot_state(info->input_dev, MT_TOOL_PALM, 1);
input_sync(info->input_dev);
/* Release touches. */
input_mt_slot(info->input_dev, 0);
input_report_abs(info->input_dev, ABS_MT_PRESSURE, 0);
input_mt_report_slot_state(info->input_dev, MT_TOOL_FINGER, 0);
input_report_abs(info->input_dev, ABS_MT_TRACKING_ID, -1);
input_report_key(info->input_dev, BTN_TOUCH, 0);
input_sync(info->input_dev);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
goog_input_unlock(info->gti);
#else
mutex_unlock(&info->input_report_mutex);
#endif
}
/* Check the finger status on long press gesture area. */
static void check_finger_status(struct fts_ts_info *info)
{
u8 command[3] = { FTS_CMD_SYSTEM, SYS_CMD_LOAD_DATA, LOAD_DEBUG_INFO };
u8 data[DEBUG_INFO_SIZE] = { 0 };
ktime_t ktime_start = ktime_get();
int retry = 0;
int ret;
dev_info(info->dev, "%s\n", __func__);
while (ktime_ms_delta(ktime_get(), ktime_start) < 500) {
retry++;
ret = fts_write(info, command, ARRAY_SIZE(command));
if (ret < OK) {
dev_err(info->dev,
"%s: error while writing the sys cmd ERROR %08X\n",
__func__, ret);
msleep(10);
continue;
}
ret = fts_writeReadU8UX(info, FTS_CMD_FRAMEBUFFER_R, BITS_16,
ADDR_FRAMEBUFFER, data, DEBUG_INFO_SIZE,
DUMMY_FRAMEBUFFER);
if (ret < OK) {
dev_err(info->dev,
"%s: error while write/read cmd ERROR %08X\n",
__func__, ret);
msleep(10);
continue;
}
/* Check header. */
if (data[0] != HEADER_SIGNATURE || data[1] != LOAD_DEBUG_INFO) {
dev_err(info->dev,
"%s: Fail to get debug info, header = %#x %#x, read next frame.\n",
__func__, data[0], data[1]);
msleep(10);
continue;
}
/* Check scan mode (data[4]).
0x05: low power detect mode.
0x06: low power active mode. */
if (data[4] != DEBUG_INFO_LP_DETECT && data[4] != DEBUG_INFO_LP_ACTIVE)
return;
/* Check finger count (data[60]). */
if (data[60] == 0) {
/* Report cancel event when finger count is 0. */
report_cancel_event(info);
break;
} else if (data[60] > 1) {
/* Skip the process when the count is abnormal. */
break;
}
msleep(10);
}
}
/**
* Resume function which perform a system reset, clean all the touches
* from the linux input system and prepare the ground for enabling the sensing
*/
static void fts_resume(struct fts_ts_info *info)
{
if (!info->sensor_sleep) return;
fts_pinctrl_setup(info, true);
if (info->board->udfps_x != 0 && info->board->udfps_y != 0)
check_finger_status(info);
fts_system_reset(info);
info->resume_bit = 1;
fts_mode_handler(info, 0);
fts_enableInterrupt(info, true);
info->sensor_sleep = false;
}
/**
* Suspend function which clean all the touches from Linux input system
* and prepare the ground to disabling the sensing or enter in gesture mode
*/
static void fts_suspend(struct fts_ts_info *info)
{
if (info->sensor_sleep) return;
info->sensor_sleep = true;
fts_enableInterrupt(info, false);
info->resume_bit = 0;
fts_mode_handler(info, 0);
fts_pinctrl_setup(info, false);
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
/* The GTI handles to release all touches */
clear_touch_flags(info);
#else
release_all_touches(info);
#endif
}
/**
* From the name of the power regulator get/put the actual regulator structs
* (copying their references into fts_ts_info variable)
* @param info pointer to fts_ts_info which contains info about the device and
* its hw setup
* @param get if 1, the regulators are get otherwise they are put (released)
* back to the system
* @return OK if success or an error code which specify the type of error
*/
static int fts_get_reg(struct fts_ts_info *info, bool get)
{
int retval;
if (!get) {
retval = 0;
goto regulator_put;
}
if (of_property_read_bool(info->dev->of_node, "vdd-supply")) {
info->vdd_reg = regulator_get(info->dev, "vdd");
if (IS_ERR(info->vdd_reg)) {
dev_err(info->dev, "%s: Failed to get power regulator\n", __func__);
retval = -EPROBE_DEFER;
goto regulator_put;
}
}
if (of_property_read_bool(info->dev->of_node, "avdd-supply")) {
info->avdd_reg = regulator_get(info->dev, "avdd");
if (IS_ERR(info->avdd_reg)) {
dev_err(info->dev, "%s: Failed to get bus pullup regulator\n",
__func__);
retval = -EPROBE_DEFER;
goto regulator_put;
}
}
return OK;
regulator_put:
if (info->vdd_reg) {
regulator_put(info->vdd_reg);
info->vdd_reg = NULL;
}
if (info->avdd_reg) {
regulator_put(info->avdd_reg);
info->avdd_reg = NULL;
}
return retval;
}
/**
* Enable or disable the power regulators
* @param info pointer to fts_ts_info which contains info about the device and
* its hw setup
* @param enable if 1, the power regulators are turned on otherwise they are
* turned off
* @return OK if success or an error code which specify the type of error
*/
static int fts_enable_reg(struct fts_ts_info *info, bool enable)
{
int retval;
if (!enable) {
retval = 0;
goto disable_pwr_reg;
}
if (info->vdd_reg) {
retval = regulator_enable(info->vdd_reg);
if (retval < 0) {
dev_err(info->dev, "%s: Failed to enable bus regulator\n",
__func__);
goto exit;
}
}
if (info->avdd_reg) {
retval = regulator_enable(info->avdd_reg);
if (retval < 0) {
dev_err(info->dev, "%s: Failed to enable power regulator\n",
__func__);
goto disable_bus_reg;
}
}
return OK;
disable_pwr_reg:
if (info->avdd_reg)
regulator_disable(info->avdd_reg);
disable_bus_reg:
if (info->vdd_reg)
regulator_disable(info->vdd_reg);
exit:
return retval;
}
/**
* Configure a GPIO according to the parameters
* @param gpio gpio number
* @param config if true, the gpio is set up otherwise it is free
* @param dir direction of the gpio, 0 = in, 1 = out
* @param state initial value (if the direction is in, this parameter is
* ignored)
* return error code
*/
static int fts_gpio_setup(int gpio, bool config, int dir, int state)
{
int retval = 0;
unsigned char buf[16];
if (config) {
scnprintf(buf, sizeof(buf), "fts_gpio_%u\n", gpio);
retval = gpio_request(gpio, buf);
if (retval) {
pr_err("%s: Failed to get gpio %d (code: %d)",
__func__, gpio, retval);
return retval;
}
if (dir == 0)
retval = gpio_direction_input(gpio);
else
retval = gpio_direction_output(gpio, state);
if (retval) {
pr_err("%s: Failed to set gpio %d direction",
__func__, gpio);
return retval;
}
} else
gpio_free(gpio);
return retval;
}
/**
* Setup the IRQ and RESET (if present) gpios.
* If the Reset Gpio is present it will perform a cycle HIGH-LOW-HIGH in order
* to assure that the IC has been reset properly
*/
static int fts_set_gpio(struct fts_ts_info *info)
{
int retval;
struct fts_hw_platform_data *bdata = info->board;
retval = fts_gpio_setup(bdata->irq_gpio, true, 0, 0);
if (retval < 0) {
dev_err(info->dev, "%s: Failed to configure irq GPIO\n", __func__);
goto err_gpio_irq;
}
if (bdata->reset_gpio >= 0) {
retval = fts_gpio_setup(bdata->reset_gpio, true, 1, 0);
if (retval < 0) {
dev_err(info->dev, "%s: Failed to configure reset GPIO\n",
__func__);
goto err_gpio_reset;
}
}
if (bdata->reset_gpio >= 0) {
gpio_set_value(bdata->reset_gpio, 0);
mdelay(10);
gpio_set_value(bdata->reset_gpio, 1);
}
return OK;
err_gpio_reset:
fts_gpio_setup(bdata->irq_gpio, false, 0, 0);
bdata->reset_gpio = GPIO_NOT_DEFINED;
err_gpio_irq:
return retval;
}
/** Set pin state to active or suspend
* @param active 1 for active while 0 for suspend
*/
static void fts_pinctrl_setup(struct fts_ts_info *info, bool active)
{
int retval;
if (info->ts_pinctrl) {
/*
* Pinctrl setup is optional.
* If pinctrl is found, set pins to active/suspend state.
* Otherwise, go on without showing error messages.
*/
retval = pinctrl_select_state(info->ts_pinctrl, active ?
info->pinctrl_state_active :
info->pinctrl_state_suspend);
if (retval < 0) {
dev_err(info->dev, "Failed to select %s pinstate %d\n", active ?
PINCTRL_STATE_ACTIVE : PINCTRL_STATE_SUSPEND,
retval);
}
} else {
dev_warn(info->dev, "ts_pinctrl is NULL\n");
}
}
/**
* Get/put the touch pinctrl from the specific names. If pinctrl is used, the
* active and suspend pin control names and states are necessary.
* @param info pointer to fts_ts_info which contains info about the device and
* its hw setup
* @param get if 1, the pinctrl is get otherwise it is put (released) back to
* the system
* @return OK if success or an error code which specify the type of error
*/
static int fts_pinctrl_get(struct fts_ts_info *info, bool get)
{
int retval;
if (!get) {
retval = 0;
goto pinctrl_put;
}
info->ts_pinctrl = devm_pinctrl_get(info->dev);
if (IS_ERR_OR_NULL(info->ts_pinctrl)) {
retval = PTR_ERR(info->ts_pinctrl);
dev_info(info->dev, "Target does not use pinctrl %d\n", retval);
goto err_pinctrl_get;
}
info->pinctrl_state_active
= pinctrl_lookup_state(info->ts_pinctrl, PINCTRL_STATE_ACTIVE);
if (IS_ERR_OR_NULL(info->pinctrl_state_active)) {
retval = PTR_ERR(info->pinctrl_state_active);
dev_err(info->dev, "Can not lookup %s pinstate %d\n",
PINCTRL_STATE_ACTIVE, retval);
goto err_pinctrl_lookup;
}
info->pinctrl_state_suspend
= pinctrl_lookup_state(info->ts_pinctrl, PINCTRL_STATE_SUSPEND);
if (IS_ERR_OR_NULL(info->pinctrl_state_suspend)) {
retval = PTR_ERR(info->pinctrl_state_suspend);
dev_err(info->dev, "Can not lookup %s pinstate %d\n",
PINCTRL_STATE_SUSPEND, retval);
goto err_pinctrl_lookup;
}
info->pinctrl_state_release
= pinctrl_lookup_state(info->ts_pinctrl, PINCTRL_STATE_RELEASE);
if (IS_ERR_OR_NULL(info->pinctrl_state_release)) {
retval = PTR_ERR(info->pinctrl_state_release);
dev_warn(info->dev, "Can not lookup %s pinstate %d\n",
PINCTRL_STATE_RELEASE, retval);
}
return OK;
err_pinctrl_lookup:
devm_pinctrl_put(info->ts_pinctrl);
err_pinctrl_get:
info->ts_pinctrl = NULL;
pinctrl_put:
if (info->ts_pinctrl) {
if (IS_ERR_OR_NULL(info->pinctrl_state_release)) {
devm_pinctrl_put(info->ts_pinctrl);
info->ts_pinctrl = NULL;
} else {
if (pinctrl_select_state(
info->ts_pinctrl,
info->pinctrl_state_release))
dev_warn(info->dev, "Failed to select release pinstate\n");
}
}
return retval;
}
/**
* Retrieve and parse the hw information from the device tree node defined in
* the system.
* the most important information to obtain are: IRQ and RESET gpio numbers,
* power regulator names
* In the device file node is possible to define additional optional
* information
* that can be parsed here.
*/
static int parse_dt(struct device *dev, struct fts_hw_platform_data *bdata)
{
int retval;
int index;
struct of_phandle_args panelmap;
struct drm_panel *panel = NULL;
struct device_node *np = dev->of_node;
u32 coords[2];
if (of_property_read_u8_array(np, "st,dchip_id", bdata->dchip_id, 2)) {
dev_err(dev, "st,dchip_id not found. Use default DCHIP_ID <0x%02X 0x%02X>.\n",
DCHIP_ID_0, DCHIP_ID_1);
bdata->dchip_id[0] = DCHIP_ID_0;
bdata->dchip_id[1] = DCHIP_ID_1;
bdata->flash_chunk = FLASH_CHUNK;
} else if (bdata->dchip_id[0] == ALIX_DCHIP_ID_0 &&
bdata->dchip_id[1] == ALIX_DCHIP_ID_1)
bdata->flash_chunk = (32 * 1024);
else
bdata->flash_chunk = (64 * 1024);
dev_info(dev, "Flash chunk = %d\n", bdata->flash_chunk);
if (of_property_read_bool(np, "st,panel_map")) {
for (index = 0 ;; index++) {
retval = of_parse_phandle_with_fixed_args(np,
"st,panel_map",
1,
index,
&panelmap);
if (retval)
return -EPROBE_DEFER;
panel = of_drm_find_panel(panelmap.np);
of_node_put(panelmap.np);
if (!IS_ERR_OR_NULL(panel)) {
bdata->panel = panel;
bdata->initial_panel_index = panelmap.args[0];
break;
}
}
}
bdata->irq_gpio = of_get_named_gpio_flags(np, "st,irq-gpio", 0, NULL);
dev_info(dev, "irq_gpio = %d\n", bdata->irq_gpio);
if (of_property_read_bool(np, "st,reset-gpio")) {
bdata->reset_gpio = of_get_named_gpio_flags(np,
"st,reset-gpio", 0,
NULL);
dev_info(dev, "reset_gpio = %d\n", bdata->reset_gpio);
} else
bdata->reset_gpio = GPIO_NOT_DEFINED;
bdata->auto_fw_update = true;
if (of_property_read_bool(np, "st,disable-auto-fw-update")) {
bdata->auto_fw_update = false;
dev_info(dev, "Automatic firmware update disabled\n");
}
bdata->separate_save_golden_ms_raw_cmd = false;
if (of_property_read_bool(np, "st,save-golden-ms-raw")) {
bdata->separate_save_golden_ms_raw_cmd = true;
dev_info(dev, "Separate \"Save Golden MS Raw\" command from PI command.\n");
}
bdata->skip_fpi_for_unset_mpflag = false;
if (of_property_read_bool(np, "st,skip-fpi-for-unset-mpflag")) {
bdata->skip_fpi_for_unset_mpflag = true;
dev_info(dev, "Skip boot-time FPI for unset MP flag.\n");
}
if (of_property_read_u32_array(np, "st,max-coords", coords, 2)) {
dev_err(dev, "st,max-coords not found, using 1440x2560\n");
coords[0] = 1440 - 1;
coords[1] = 2560 - 1;
}
bdata->x_axis_max = coords[0];
bdata->y_axis_max = coords[1];
if (of_property_read_u32_array(np, "st,udfps-coords", coords, 2)) {
dev_err(dev, "st,udfps-coords not found\n");
coords[0] = 0;
coords[1] = 0;
}
bdata->udfps_x = coords[0];
bdata->udfps_y = coords[1];
bdata->sensor_inverted_x = 0;
if (of_property_read_bool(np, "st,sensor_inverted_x"))
bdata->sensor_inverted_x = 1;
dev_info(dev, "Sensor inverted x = %u\n", bdata->sensor_inverted_x);
bdata->sensor_inverted_y = 0;
if (of_property_read_bool(np, "st,sensor_inverted_y"))
bdata->sensor_inverted_y = 1;
dev_info(dev, "Sensor inverted y = %u\n", bdata->sensor_inverted_y);
bdata->tx_rx_dir_swap = 0;
if (of_property_read_bool(np, "st,tx_rx_dir_swap"))
bdata->tx_rx_dir_swap = 1;
dev_info(dev, "tx_rx_dir_swap = %u\n",
bdata->tx_rx_dir_swap);
bdata->device_name = NULL;
of_property_read_string(np, "st,device_name",
&bdata->device_name);
if(!bdata->device_name)
bdata->device_name = FTS_TS_DRV_NAME;
dev_info(dev, "device_name = %s\n", bdata->device_name);
if (of_property_read_u8(np, "st,grip_area", &bdata->fw_grip_area))
bdata->fw_grip_area = 0;
dev_info(dev, "Firmware grip area = %u\n", bdata->fw_grip_area);
return OK;
}
/**
* Probe function, called when the driver it is matched with a device
* with the same name compatible name
* This function allocate, initialize all the most important functions and flow
* those are used by the driver to operate with the IC.
* It allocates device variables, initialize queues and schedule works,
* registers the IRQ handler, suspend/resume callbacks, registers the device
* to the linux input subsystem etc.
*/
#ifdef I2C_INTERFACE
static int fts_probe(struct i2c_client *client, const struct i2c_device_id *idp)
{
#else
static int fts_probe(struct spi_device *client)
{
#endif
struct fts_ts_info *info = NULL;
int error = 0;
struct device_node *dp = client->dev.of_node;
int retval;
int input_dev_free_flag = 0;
u16 bus_type;
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
struct gti_optional_configuration *options;
#endif
dev_info(&client->dev, "%s: driver probe begin!\n", __func__);
dev_info(&client->dev, "driver ver. %s\n", FTS_TS_DRV_VERSION);
dev_info(&client->dev, "SET Bus Functionality :\n");
info = kzalloc(sizeof(struct fts_ts_info), GFP_KERNEL);
if (!info) {
dev_err(&client->dev, "Out of memory... Impossible to allocate struct info!\n");
error = -ENOMEM;
goto ProbeErrorExit_0;
}
#ifdef I2C_INTERFACE
dev_info(&client->dev, "I2C interface...\n");
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "Unsupported I2C functionality\n");
error = -EIO;
goto ProbeErrorExit_1;
}
dev_info(&client->dev, "i2c address: %x\n", client->addr);
bus_type = BUS_I2C;
#else
if (client->controller->rt == false) {
client->rt = true;
retval = spi_setup(client);
if (retval < 0) {
dev_err(&client->dev, "%s: setup SPI rt failed(%d)\n",
__func__, retval);
}
info->dma_mode = goog_check_spi_dma_enabled(client);
}
dev_info(&client->dev, "SPI interface...\n");
bus_type = BUS_SPI;
#endif
dev_info(&client->dev, "SET Device driver INFO:\n");
info->client = client;
info->dev = &info->client->dev;
dev_set_drvdata(info->dev, info);
if (dp) {
info->board = devm_kzalloc(&client->dev,
sizeof(struct fts_hw_platform_data),
GFP_KERNEL);
if (!info->board) {
dev_err(info->dev, "ERROR:info.board kzalloc failed\n");
goto ProbeErrorExit_1;
}
error = parse_dt(&client->dev, info->board);
if (error)
goto ProbeErrorExit_1;
}
dev_info(info->dev, "SET Regulators:\n");
error = fts_get_reg(info, true);
if (error < 0) {
dev_err(info->dev, "ERROR: %s: Failed to get regulators\n", __func__);
goto ProbeErrorExit_1;
}
error = fts_enable_reg(info, true);
if (error < 0) {
dev_err(info->dev, "%s: ERROR Failed to enable regulators\n", __func__);
goto ProbeErrorExit_2;
}
dev_info(info->dev, "SET GPIOS:\n");
error = fts_set_gpio(info);
if (error < 0) {
dev_err(info->dev, "%s: ERROR Failed to set up GPIO's\n", __func__);
goto ProbeErrorExit_2;
}
info->client->irq = gpio_to_irq(info->board->irq_gpio);
dev_info(info->dev, "SET Pinctrl:\n");
retval = fts_pinctrl_get(info, true);
if (!retval)
fts_pinctrl_setup(info, true);
dev_info(info->dev, "SET Input Device Property:\n");
info->dev = &info->client->dev;
info->input_dev = input_allocate_device();
if (!info->input_dev) {
dev_err(info->dev, "ERROR: No such input device defined!\n");
error = -ENODEV;
goto ProbeErrorExit_3;
}
info->input_dev->dev.parent = &client->dev;
info->input_dev->name = info->board->device_name;
scnprintf(info->fts_ts_phys, sizeof(info->fts_ts_phys), "%s/input0",
info->input_dev->name);
info->input_dev->phys = info->fts_ts_phys;
info->input_dev->uniq = info->input_dev->name;
info->input_dev->id.bustype = bus_type;
info->input_dev->id.vendor = 0x0001;
info->input_dev->id.product = 0x0002;
info->input_dev->id.version = 0x0100;
__set_bit(EV_SYN, info->input_dev->evbit);
__set_bit(EV_KEY, info->input_dev->evbit);
__set_bit(EV_ABS, info->input_dev->evbit);
__set_bit(BTN_TOUCH, info->input_dev->keybit);
/* __set_bit(BTN_TOOL_FINGER, info->input_dev->keybit); */
/* __set_bit(BTN_TOOL_PEN, info->input_dev->keybit); */
input_mt_init_slots(info->input_dev, TOUCH_ID_MAX, INPUT_MT_DIRECT);
/* input_mt_init_slots(info->input_dev, TOUCH_ID_MAX); */
input_set_abs_params(info->input_dev, ABS_MT_POSITION_X, X_AXIS_MIN,
info->board->x_axis_max, 0, 0);
input_set_abs_params(info->input_dev, ABS_MT_POSITION_Y, Y_AXIS_MIN,
info->board->y_axis_max, 0, 0);
input_set_abs_params(info->input_dev, ABS_MT_TOUCH_MAJOR, AREA_MIN,
AREA_MAX, 0, 0);
input_set_abs_params(info->input_dev, ABS_MT_TOUCH_MINOR, AREA_MIN,
AREA_MAX, 0, 0);
input_set_abs_params(info->input_dev, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER,
MT_TOOL_FINGER, 0, 0);
#ifndef SKIP_PRESSURE
input_set_abs_params(info->input_dev, ABS_MT_PRESSURE, PRESSURE_MIN,
PRESSURE_MAX, 0, 0);
#endif
#ifndef SKIP_DISTANCE
input_set_abs_params(info->input_dev, ABS_MT_DISTANCE, DISTANCE_MIN,
DISTANCE_MAX, 0, 0);
#endif
/* Units are (-4096, 4096), representing the range between rotation
* 90 degrees to left and 90 degrees to the right.
*/
input_set_abs_params(info->input_dev, ABS_MT_ORIENTATION, -4096, 4096,
0, 0);
#ifdef GESTURE_MODE
input_set_capability(info->input_dev, EV_KEY, KEY_WAKEUP);
input_set_capability(info->input_dev, EV_KEY, KEY_M);
input_set_capability(info->input_dev, EV_KEY, KEY_O);
input_set_capability(info->input_dev, EV_KEY, KEY_E);
input_set_capability(info->input_dev, EV_KEY, KEY_W);
input_set_capability(info->input_dev, EV_KEY, KEY_C);
input_set_capability(info->input_dev, EV_KEY, KEY_L);
input_set_capability(info->input_dev, EV_KEY, KEY_F);
input_set_capability(info->input_dev, EV_KEY, KEY_V);
input_set_capability(info->input_dev, EV_KEY, KEY_S);
input_set_capability(info->input_dev, EV_KEY, KEY_Z);
input_set_capability(info->input_dev, EV_KEY, KEY_WWW);
input_set_capability(info->input_dev, EV_KEY, KEY_LEFT);
input_set_capability(info->input_dev, EV_KEY, KEY_RIGHT);
input_set_capability(info->input_dev, EV_KEY, KEY_UP);
input_set_capability(info->input_dev, EV_KEY, KEY_DOWN);
input_set_capability(info->input_dev, EV_KEY, KEY_F1);
input_set_capability(info->input_dev, EV_KEY, KEY_F2);
input_set_capability(info->input_dev, EV_KEY, KEY_F3);
input_set_capability(info->input_dev, EV_KEY, KEY_F4);
input_set_capability(info->input_dev, EV_KEY, KEY_F5);
input_set_capability(info->input_dev, EV_KEY, KEY_LEFTBRACE);
input_set_capability(info->input_dev, EV_KEY, KEY_RIGHTBRACE);
#endif
#ifdef PHONE_KEY
/* KEY associated to the touch screen buttons */
input_set_capability(info->input_dev, EV_KEY, KEY_HOMEPAGE);
input_set_capability(info->input_dev, EV_KEY, KEY_BACK);
input_set_capability(info->input_dev, EV_KEY, KEY_MENU);
#endif
#if !IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
mutex_init(&info->input_report_mutex);
#endif
mutex_init(&info->diag_cmd_lock);
mutex_init(&info->io_mutex);
#ifdef GESTURE_MODE
mutex_init(&gestureMask_mutex);
#endif
spin_lock_init(&info->fts_int);
/* register the multi-touch input device */
error = input_register_device(info->input_dev);
if (error) {
dev_err(info->dev, "ERROR: No such input device\n");
error = -ENODEV;
goto ProbeErrorExit_4;
}
input_dev_free_flag = 1;
/* track slots */
info->touch_id = 0;
info->palm_touch_mask = 0;
info->grip_touch_mask = 0;
#ifdef STYLUS_MODE
info->stylus_id = 0;
#endif
/* init feature switches (by default all the features are disable,
* if one feature want to be enabled from the start,
* set the corresponding value to 1)*/
info->gesture_enabled = 0;
info->glove_enabled = 0;
info->charger_enabled = 0;
info->cover_enabled = 0;
info->grip_enabled = 0;
info->resume_bit = 1;
dev_info(info->dev, "Init Core Lib:\n");
initCore(info);
/* init hardware device */
dev_info(info->dev, "Device Initialization:\n");
error = fts_init(info);
if (error < OK) {
dev_err(info->dev, "Cannot initialize the device ERROR %08X\n", error);
error = -ENODEV;
goto ProbeErrorExit_5;
}
#if defined(FW_UPDATE_ON_PROBE) && defined(FW_H_FILE)
dev_info(info->dev, "FW Update and Sensing Initialization:\n");
error = fts_fw_update(info);
if (error < OK) {
dev_err(info->dev, "Cannot execute fw upgrade the device ERROR %08X\n",
error);
error = -ENODEV;
goto ProbeErrorExit_5;
}
#else
dev_info(info->dev, "SET Auto Fw Update:\n");
info->fwu_workqueue = alloc_workqueue("fts-fwu-queue",
WQ_UNBOUND | WQ_HIGHPRI |
WQ_CPU_INTENSIVE, 1);
if (!info->fwu_workqueue) {
dev_err(info->dev, "ERROR: Cannot create fwu work thread\n");
goto ProbeErrorExit_5;
}
INIT_DELAYED_WORK(&info->fwu_work, fts_fw_update_auto);
#endif
dev_info(info->dev, "SET Device File Nodes:\n");
/* sysfs stuff */
info->attrs.attrs = fts_attr_group;
info->attrs.bin_attrs = fts_bin_attr_group;
error = sysfs_create_group(&client->dev.kobj, &info->attrs);
if (error) {
dev_err(info->dev, "ERROR: Cannot create sysfs structure!\n");
error = -ENODEV;
goto ProbeErrorExit_5;
}
retval = fts_proc_init(info);
if (retval < OK)
dev_err(info->dev, "Error: can not create /proc file!\n");
info->diag_node_open = false;
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
options = devm_kzalloc(info->dev, sizeof(struct gti_optional_configuration), GFP_KERNEL);
if (!options) {
dev_err(info->dev, "GTI optional configuration kzalloc failed.\n");
}
options->get_fw_version = get_fw_version;
options->get_mutual_sensor_data = get_mutual_sensor_data;
options->get_self_sensor_data = get_self_sensor_data;
options->set_continuous_report = set_continuous_report;
options->set_screen_protector_mode = set_screen_protector_mode;
options->get_screen_protector_mode = get_screen_protector_mode;
options->set_grip_mode = set_grip_mode;
options->get_grip_mode = get_grip_mode;
options->set_palm_mode = set_palm_mode;
options->get_palm_mode = get_palm_mode;
info->gti = goog_touch_interface_probe(
info, info->dev, info->input_dev, gti_default_handler, options);
retval = goog_pm_register_notification(info->gti, &fts_pm_ops);
if (retval < 0) {
dev_info(info->dev, "Failed to register gti pm");
goto ProbeErrorExit_6;
}
#endif
if (info->fwu_workqueue)
queue_delayed_work(info->fwu_workqueue, &info->fwu_work,
msecs_to_jiffies(EXP_FN_WORK_DELAY_MS));
dev_info(info->dev, "Probe Finished!\n");
return OK;
ProbeErrorExit_6:
sysfs_remove_group(&client->dev.kobj, &info->attrs);
ProbeErrorExit_5:
input_unregister_device(info->input_dev);
ProbeErrorExit_4:
/* This function should only be used if input_register_device()
* was not called yet or if it failed. */
if (input_dev_free_flag != 1)
input_free_device(info->input_dev);
ProbeErrorExit_3:
fts_pinctrl_get(info, false);
fts_enable_reg(info, false);
ProbeErrorExit_2:
fts_get_reg(info, false);
ProbeErrorExit_1:
kfree(info);
ProbeErrorExit_0:
if (error != -EPROBE_DEFER)
dev_err(info->dev, "Probe Failed!\n");
return error;
}
/**
* Clear and free all the resources associated to the driver.
* This function is called when the driver need to be removed.
*/
#ifdef I2C_INTERFACE
static int fts_remove(struct i2c_client *client)
{
#else
static int fts_remove(struct spi_device *client)
{
#endif
struct fts_ts_info *info = dev_get_drvdata(&(client->dev));
dev_info(info->dev, "%s\n", __func__);
fts_proc_remove(info);
/* sysfs stuff */
sysfs_remove_group(&client->dev.kobj, &info->attrs);
/* remove interrupt and event handlers */
fts_interrupt_uninstall(info);
/* unregister the device */
input_unregister_device(info->input_dev);
if (info->fwu_workqueue)
destroy_workqueue(info->fwu_workqueue);
fts_pinctrl_get(info, false);
fts_enable_reg(info, false);
fts_get_reg(info, false);
/* free gpio */
if (gpio_is_valid(info->board->irq_gpio))
gpio_free(info->board->irq_gpio);
if (gpio_is_valid(info->board->reset_gpio))
gpio_free(info->board->reset_gpio);
/* free any extinfo */
kfree(info->extinfo.data);
/* free all */
kfree(info);
return OK;
}
#ifdef CONFIG_PM
static int fts_pm_suspend(struct device *dev)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
fts_suspend(info);
return 0;
}
static int fts_pm_resume(struct device *dev)
{
struct fts_ts_info *info = dev_get_drvdata(dev);
fts_resume(info);
return 0;
}
static SIMPLE_DEV_PM_OPS(fts_pm_ops, fts_pm_suspend, fts_pm_resume);
#endif
/**
* Struct which contains the compatible names that need to match with
* the definition of the device in the device tree node
*/
static struct of_device_id fts_of_match_table[] = {
{
.compatible = "st,fts",
},
{},
};
#ifdef I2C_INTERFACE
static const struct i2c_device_id fts_device_id[] = {
{ FTS_TS_DRV_NAME, 0 },
{}
};
static struct i2c_driver fts_i2c_driver = {
.driver = {
.name = FTS_TS_DRV_NAME,
.of_match_table = fts_of_match_table,
#if IS_ENABLED(CONFIG_PM) && !IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
.pm = &fts_pm_ops,
#endif
},
.probe = fts_probe,
.remove = fts_remove,
.id_table = fts_device_id,
};
#else
static struct spi_driver fts_spi_driver = {
.driver = {
.name = FTS_TS_DRV_NAME,
.of_match_table = fts_of_match_table,
.owner = THIS_MODULE,
#if IS_ENABLED(CONFIG_PM) && !IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
.pm = &fts_pm_ops,
#endif
},
.probe = fts_probe,
.remove = fts_remove,
};
#endif
static int __init fts_driver_init(void)
{
#ifdef I2C_INTERFACE
return i2c_add_driver(&fts_i2c_driver);
#else
return spi_register_driver(&fts_spi_driver);
#endif
}
static void __exit fts_driver_exit(void)
{
pr_info("%s\n", __func__);
#ifdef I2C_INTERFACE
i2c_del_driver(&fts_i2c_driver);
#else
spi_unregister_driver(&fts_spi_driver);
#endif
}
MODULE_DESCRIPTION("STMicroelectronics MultiTouch IC Driver");
MODULE_AUTHOR("STMicroelectronics");
MODULE_LICENSE("GPL v2");
late_initcall(fts_driver_init);
module_exit(fts_driver_exit);