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/*
* Copyright (C) 2012, Samsung Electronics Co. Ltd. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include "ssp.h"
#define SSP_DEBUG_TIMER_SEC (10 * HZ)
#define LIMIT_RESET_CNT 20
#define LIMIT_SSD_FAIL_CNT 3
#define LIMIT_INSTRUCTION_FAIL_CNT 1
#define LIMIT_IRQ_FAIL_CNT 2
#define LIMIT_TIMEOUT_CNT 5
/*************************************************************************/
/* SSP Debug timer function */
/*************************************************************************/
int print_mcu_debug(char *pchRcvDataFrame, int *pDataIdx,
int iRcvDataFrameLength)
{
int iLength = pchRcvDataFrame[0];
if (iLength >= iRcvDataFrameLength - *pDataIdx - 1 || iLength <= 0) {
ssp_dbg("[SSP]: MSG From MCU - invalid debug length(%d/%d)\n",
iLength, iRcvDataFrameLength);
return iLength ? iLength : ERROR;
}
pchRcvDataFrame[iLength] = 0;
*pDataIdx += iLength + 2;
ssp_dbg("[SSP]: MSG From MCU - %s\n", pchRcvDataFrame + 1);
return 0;
}
void reset_mcu(struct ssp_data *data)
{
if (data->bSspShutdown == false) {
data->bSspShutdown = true;
disable_irq_wake(data->iIrq);
disable_irq(data->iIrq);
}
toggle_mcu_reset(data);
msleep(SSP_SW_RESET_TIME);
data->bSspShutdown = false;
if (initialize_mcu(data) < 0)
return;
if (data->bSspShutdown == true) {
data->bSspShutdown = false;
enable_irq(data->iIrq);
enable_irq_wake(data->iIrq);
}
sync_sensor_state(data);
#ifdef CONFIG_SENSORS_SSP_SENSORHUB
ssp_sensorhub_report_notice(data, MSG2SSP_AP_STATUS_RESET);
#endif
}
void sync_sensor_state(struct ssp_data *data)
{
unsigned char uBuf[2] = {0,};
unsigned int uSensorCnt;
proximity_open_calibration(data);
udelay(10);
for (uSensorCnt = 0; uSensorCnt < (SENSOR_MAX - 1); uSensorCnt++) {
if (atomic_read(&data->aSensorEnable) & (1 << uSensorCnt)) {
uBuf[1] = (u8)get_msdelay(data->adDelayBuf[uSensorCnt]);
uBuf[0] = (u8)get_delay_cmd(uBuf[1]);
send_instruction(data, ADD_SENSOR, uSensorCnt, uBuf, 2);
udelay(10);
}
}
if (data->bProximityRawEnabled == true) {
uBuf[0] = 1;
uBuf[1] = 20;
send_instruction(data, ADD_SENSOR, PROXIMITY_RAW, uBuf, 2);
}
}
static void print_sensordata(struct ssp_data *data, unsigned int uSensor)
{
switch (uSensor) {
case ACCELEROMETER_SENSOR:
case GYROSCOPE_SENSOR:
case GEOMAGNETIC_SENSOR:
ssp_dbg(" %u : %d, %d, %d (%ums)\n", uSensor,
data->buf[uSensor].x, data->buf[uSensor].y,
data->buf[uSensor].z,
get_msdelay(data->adDelayBuf[uSensor]));
break;
case LIGHT_SENSOR:
ssp_dbg(" %u : %u, %u, %u, %u (%ums)\n", uSensor,
data->buf[uSensor].r, data->buf[uSensor].g,
data->buf[uSensor].b, data->buf[uSensor].w,
get_msdelay(data->adDelayBuf[uSensor]));
break;
case PRESSURE_SENSOR:
ssp_dbg(" %u : %d, %d (%ums)\n", uSensor,
data->buf[uSensor].pressure[0],
data->buf[uSensor].pressure[1],
get_msdelay(data->adDelayBuf[uSensor]));
break;
case GESTURE_SENSOR:
ssp_dbg(" %u : %d %d %d %d (%ums)\n", uSensor,
data->buf[uSensor].data[0], data->buf[uSensor].data[1],
data->buf[uSensor].data[2], data->buf[uSensor].data[3],
get_msdelay(data->adDelayBuf[uSensor]));
break;
case PROXIMITY_SENSOR:
ssp_dbg(" %u : %d %d(%ums)\n", uSensor,
data->buf[uSensor].prox[0], data->buf[uSensor].prox[1],
get_msdelay(data->adDelayBuf[uSensor]));
}
}
static void debug_work_func(struct work_struct *work)
{
unsigned int uSensorCnt;
struct ssp_data *data = container_of(work, struct ssp_data, work_debug);
ssp_dbg("[SSP]: %s(%u) - Sensor state: 0x%x, RC: %u, MS: %u\n",
__func__, data->uIrqCnt, data->uSensorState, data->uResetCnt,
data->uMissSensorCnt);
for (uSensorCnt = 0; uSensorCnt < (SENSOR_MAX - 1); uSensorCnt++)
if (atomic_read(&data->aSensorEnable) & (1 << uSensorCnt))
print_sensordata(data, uSensorCnt);
if (data->fw_dl_state >= FW_DL_STATE_DOWNLOADING &&
data->fw_dl_state < FW_DL_STATE_DONE) {
pr_info("[SSP] : %s firmware downloading state = %d\n",
__func__, data->fw_dl_state);
return;
} else if (data->fw_dl_state == FW_DL_STATE_FAIL) {
pr_err("[SSP] : %s firmware download failed = %d\n",
__func__, data->fw_dl_state);
return;
}
if ((atomic_read(&data->aSensorEnable) & 0x4f) && (data->uIrqCnt == 0))
data->uIrqFailCnt++;
else
data->uIrqFailCnt = 0;
if (((data->uSsdFailCnt >= LIMIT_SSD_FAIL_CNT)
|| (data->uInstFailCnt >= LIMIT_INSTRUCTION_FAIL_CNT)
|| (data->uIrqFailCnt >= LIMIT_IRQ_FAIL_CNT)
|| ((data->uTimeOutCnt + data->uBusyCnt) > LIMIT_TIMEOUT_CNT))
&& (data->bSspShutdown == false)) {
if (data->uResetCnt < LIMIT_RESET_CNT) {
reset_mcu(data);
data->uResetCnt++;
} else {
if (data->bSspShutdown == false) {
data->bSspShutdown = true;
disable_irq_wake(data->iIrq);
disable_irq(data->iIrq);
}
}
data->uSsdFailCnt = 0;
data->uInstFailCnt = 0;
data->uTimeOutCnt = 0;
data->uBusyCnt = 0;
data->uIrqFailCnt = 0;
}
data->uIrqCnt = 0;
}
static void debug_timer_func(unsigned long ptr)
{
struct ssp_data *data = (struct ssp_data *)ptr;
queue_work(data->debug_wq, &data->work_debug);
mod_timer(&data->debug_timer,
round_jiffies_up(jiffies + SSP_DEBUG_TIMER_SEC));
}
void enable_debug_timer(struct ssp_data *data)
{
mod_timer(&data->debug_timer,
round_jiffies_up(jiffies + SSP_DEBUG_TIMER_SEC));
}
void disable_debug_timer(struct ssp_data *data)
{
del_timer_sync(&data->debug_timer);
cancel_work_sync(&data->work_debug);
}
int initialize_debug_timer(struct ssp_data *data)
{
setup_timer(&data->debug_timer, debug_timer_func, (unsigned long)data);
data->debug_wq = create_singlethread_workqueue("ssp_debug_wq");
if (!data->debug_wq)
return ERROR;
INIT_WORK(&data->work_debug, debug_work_func);
return SUCCESS;
}
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