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M7350/kernel/drivers/char/diag/diag_masks.c
T f9cc65cfda M7350v1_en_gpl
2024-09-09 08:52:07 +00:00

968 lines
29 KiB
C
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/* Copyright (c) 2008-2013, The Linux Foundation. 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 version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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 <linux/slab.h>
#include <linux/delay.h>
#include <linux/diagchar.h>
#include <linux/kmemleak.h>
#include <linux/workqueue.h>
#include "diagchar.h"
#include "diagfwd_cntl.h"
#include "diag_masks.h"
int diag_event_num_bytes;
#define DIAG_CTRL_MASK_INVALID 0
#define DIAG_CTRL_MASK_ALL_DISABLED 1
#define DIAG_CTRL_MASK_ALL_ENABLED 2
#define DIAG_CTRL_MASK_VALID 3
#define ALL_EQUIP_ID 100
#define ALL_SSID -1
#define FEATURE_MASK_LEN_BYTES 1
struct mask_info {
int equip_id;
int num_items;
int index;
};
#define CREATE_MSG_MASK_TBL_ROW(XX) \
do { \
*(int *)(msg_mask_tbl_ptr) = MSG_SSID_ ## XX; \
msg_mask_tbl_ptr += 4; \
*(int *)(msg_mask_tbl_ptr) = MSG_SSID_ ## XX ## _LAST; \
msg_mask_tbl_ptr += 4; \
/* mimic the last entry as actual_last while creation */ \
*(int *)(msg_mask_tbl_ptr) = MSG_SSID_ ## XX ## _LAST; \
msg_mask_tbl_ptr += 4; \
/* increment by MAX_SSID_PER_RANGE cells */ \
msg_mask_tbl_ptr += MAX_SSID_PER_RANGE * sizeof(int); \
} while (0)
static void diag_print_mask_table(void)
{
/* Enable this to print mask table when updated */
#ifdef MASK_DEBUG
int first, last, actual_last;
uint8_t *ptr = driver->msg_masks;
int i = 0;
pr_info("diag: F3 message mask table\n");
while (*(uint32_t *)(ptr + 4)) {
first = *(uint32_t *)ptr;
ptr += 4;
last = *(uint32_t *)ptr;
ptr += 4;
actual_last = *(uint32_t *)ptr;
ptr += 4;
pr_info("diag: SSID %d, %d - %d\n", first, last, actual_last);
for (i = 0 ; i <= actual_last - first ; i++)
pr_info("diag: MASK:%x\n", *((uint32_t *)ptr + i));
ptr += MAX_SSID_PER_RANGE*4;
}
#endif
}
void diag_create_msg_mask_table(void)
{
uint8_t *msg_mask_tbl_ptr = driver->msg_masks;
CREATE_MSG_MASK_TBL_ROW(0);
CREATE_MSG_MASK_TBL_ROW(1);
CREATE_MSG_MASK_TBL_ROW(2);
CREATE_MSG_MASK_TBL_ROW(3);
CREATE_MSG_MASK_TBL_ROW(4);
CREATE_MSG_MASK_TBL_ROW(5);
CREATE_MSG_MASK_TBL_ROW(6);
CREATE_MSG_MASK_TBL_ROW(7);
CREATE_MSG_MASK_TBL_ROW(8);
CREATE_MSG_MASK_TBL_ROW(9);
CREATE_MSG_MASK_TBL_ROW(10);
CREATE_MSG_MASK_TBL_ROW(11);
CREATE_MSG_MASK_TBL_ROW(12);
CREATE_MSG_MASK_TBL_ROW(13);
CREATE_MSG_MASK_TBL_ROW(14);
CREATE_MSG_MASK_TBL_ROW(15);
CREATE_MSG_MASK_TBL_ROW(16);
CREATE_MSG_MASK_TBL_ROW(17);
CREATE_MSG_MASK_TBL_ROW(18);
CREATE_MSG_MASK_TBL_ROW(19);
CREATE_MSG_MASK_TBL_ROW(20);
CREATE_MSG_MASK_TBL_ROW(21);
CREATE_MSG_MASK_TBL_ROW(22);
CREATE_MSG_MASK_TBL_ROW(23);
}
static void diag_set_msg_mask(int rt_mask)
{
int first_ssid, last_ssid, i;
uint8_t *parse_ptr, *ptr = driver->msg_masks;
mutex_lock(&driver->diagchar_mutex);
driver->msg_status = rt_mask ? DIAG_CTRL_MASK_ALL_ENABLED :
DIAG_CTRL_MASK_ALL_DISABLED;
while (*(uint32_t *)(ptr + 4)) {
first_ssid = *(uint32_t *)ptr;
ptr += 8; /* increment by 8 to skip 'last' */
last_ssid = *(uint32_t *)ptr;
ptr += 4;
parse_ptr = ptr;
pr_debug("diag: updating range %d %d\n", first_ssid, last_ssid);
for (i = 0; i < last_ssid - first_ssid + 1; i++) {
*(int *)parse_ptr = rt_mask;
parse_ptr += 4;
}
ptr += MAX_SSID_PER_RANGE * 4;
}
mutex_unlock(&driver->diagchar_mutex);
}
static void diag_update_msg_mask(int start, int end , uint8_t *buf)
{
int found = 0, first, last, actual_last;
uint8_t *actual_last_ptr;
uint8_t *ptr = driver->msg_masks;
uint8_t *ptr_buffer_start = &(*(driver->msg_masks));
uint8_t *ptr_buffer_end = &(*(driver->msg_masks)) + MSG_MASK_SIZE;
uint32_t copy_len = (end - start + 1) * sizeof(int);
mutex_lock(&driver->diagchar_mutex);
/* First SSID can be zero : So check that last is non-zero */
while (*(uint32_t *)(ptr + 4)) {
first = *(uint32_t *)ptr;
ptr += 4;
last = *(uint32_t *)ptr;
ptr += 4;
actual_last = *(uint32_t *)ptr;
actual_last_ptr = ptr;
ptr += 4;
if (start >= first && start <= actual_last) {
ptr += (start - first)*4;
if (end > actual_last) {
pr_info("diag: ssid range mismatch\n");
actual_last = end;
*(uint32_t *)(actual_last_ptr) = end;
}
if (actual_last-first >= MAX_SSID_PER_RANGE) {
pr_err("diag: In %s, truncating ssid range, %d-%d to max allowed: %d",
__func__, first, actual_last,
MAX_SSID_PER_RANGE);
copy_len = MAX_SSID_PER_RANGE;
actual_last = first + MAX_SSID_PER_RANGE;
*(uint32_t *)actual_last_ptr = actual_last;
}
if (CHK_OVERFLOW(ptr_buffer_start, ptr, ptr_buffer_end,
copy_len)) {
pr_debug("diag: update ssid start %d, end %d\n",
start, end);
memcpy(ptr, buf, copy_len);
} else
pr_alert("diag: Not enough space MSG_MASK\n");
found = 1;
break;
} else {
ptr += MAX_SSID_PER_RANGE*4;
}
}
/* Entry was not found - add new table */
if (!found) {
if (CHK_OVERFLOW(ptr_buffer_start, ptr, ptr_buffer_end,
8 + ((end - start) + 1)*4)) {
memcpy(ptr, &(start) , 4);
ptr += 4;
memcpy(ptr, &(end), 4);
ptr += 4;
memcpy(ptr, &(end), 4); /* create actual_last entry */
ptr += 4;
pr_debug("diag: adding NEW ssid start %d, end %d\n",
start, end);
memcpy(ptr, buf , ((end - start) + 1)*4);
} else
pr_alert("diag: Not enough buffer space for MSG_MASK\n");
}
driver->msg_status = DIAG_CTRL_MASK_VALID;
mutex_unlock(&driver->diagchar_mutex);
diag_print_mask_table();
}
void diag_toggle_event_mask(int toggle)
{
uint8_t *ptr = driver->event_masks;
mutex_lock(&driver->diagchar_mutex);
if (toggle) {
driver->event_status = DIAG_CTRL_MASK_ALL_ENABLED;
memset(ptr, 0xFF, EVENT_MASK_SIZE);
} else {
driver->event_status = DIAG_CTRL_MASK_ALL_DISABLED;
memset(ptr, 0, EVENT_MASK_SIZE);
}
mutex_unlock(&driver->diagchar_mutex);
}
static void diag_update_event_mask(uint8_t *buf, int num_bytes)
{
uint8_t *ptr = driver->event_masks;
uint8_t *temp = buf + 2;
mutex_lock(&driver->diagchar_mutex);
if (CHK_OVERFLOW(ptr, ptr, ptr+EVENT_MASK_SIZE, num_bytes)) {
memcpy(ptr, temp, num_bytes);
driver->event_status = DIAG_CTRL_MASK_VALID;
} else {
pr_err("diag: In %s, not enough buffer space\n", __func__);
}
mutex_unlock(&driver->diagchar_mutex);
}
static void diag_disable_log_mask(void)
{
int i = 0;
struct mask_info *parse_ptr = (struct mask_info *)(driver->log_masks);
pr_debug("diag: disable log masks\n");
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < MAX_EQUIP_ID; i++) {
pr_debug("diag: equip id %d\n", parse_ptr->equip_id);
if (!(parse_ptr->equip_id)) /* Reached a null entry */
break;
memset(driver->log_masks + parse_ptr->index, 0,
(parse_ptr->num_items + 7)/8);
parse_ptr++;
}
driver->log_status = DIAG_CTRL_MASK_ALL_DISABLED;
mutex_unlock(&driver->diagchar_mutex);
}
int chk_equip_id_and_mask(int equip_id, uint8_t *buf)
{
int i = 0, flag = 0, num_items, offset;
unsigned char *ptr_data;
struct mask_info *ptr = (struct mask_info *)(driver->log_masks);
pr_debug("diag: received equip id = %d\n", equip_id);
/* Check if this is valid equipment ID */
for (i = 0; i < MAX_EQUIP_ID; i++) {
if ((ptr->equip_id == equip_id) && (ptr->index != 0)) {
offset = ptr->index;
num_items = ptr->num_items;
flag = 1;
break;
}
ptr++;
}
if (!flag)
return -EPERM;
ptr_data = driver->log_masks + offset;
memcpy(buf, ptr_data, (num_items+7)/8);
return 0;
}
static void diag_update_log_mask(int equip_id, uint8_t *buf, int num_items)
{
uint8_t *temp = buf;
int i = 0;
unsigned char *ptr_data;
int offset = (sizeof(struct mask_info))*MAX_EQUIP_ID;
struct mask_info *ptr = (struct mask_info *)(driver->log_masks);
pr_debug("diag: received equip id = %d\n", equip_id);
mutex_lock(&driver->diagchar_mutex);
/* Check if we already know index of this equipment ID */
for (i = 0; i < MAX_EQUIP_ID; i++) {
if ((ptr->equip_id == equip_id) && (ptr->index != 0)) {
offset = ptr->index;
break;
}
if ((ptr->equip_id == 0) && (ptr->index == 0)) {
/* Reached a null entry */
ptr->equip_id = equip_id;
ptr->num_items = num_items;
ptr->index = driver->log_masks_length;
offset = driver->log_masks_length;
driver->log_masks_length += ((num_items+7)/8);
break;
}
ptr++;
}
ptr_data = driver->log_masks + offset;
if (CHK_OVERFLOW(driver->log_masks, ptr_data, driver->log_masks
+ LOG_MASK_SIZE, (num_items+7)/8)) {
memcpy(ptr_data, temp, (num_items+7)/8);
driver->log_status = DIAG_CTRL_MASK_VALID;
} else {
pr_err("diag: Not enough buffer space for LOG_MASK\n");
driver->log_status = DIAG_CTRL_MASK_INVALID;
}
mutex_unlock(&driver->diagchar_mutex);
}
void diag_mask_update_fn(struct work_struct *work)
{
struct diag_smd_info *smd_info = container_of(work,
struct diag_smd_info,
diag_notify_update_smd_work);
if (!smd_info) {
pr_err("diag: In %s, smd info is null, cannot update masks for the peripheral\n",
__func__);
return;
}
diag_send_feature_mask_update(smd_info);
diag_send_msg_mask_update(smd_info->ch, ALL_SSID, ALL_SSID,
smd_info->peripheral);
diag_send_log_mask_update(smd_info->ch, ALL_EQUIP_ID);
diag_send_event_mask_update(smd_info->ch, diag_event_num_bytes);
if (smd_info->notify_context == SMD_EVENT_OPEN)
diag_send_diag_mode_update_by_smd(smd_info, MODE_REALTIME);
smd_info->notify_context = 0;
}
void diag_send_log_mask_update(smd_channel_t *ch, int equip_id)
{
void *buf = driver->buf_log_mask_update;
int header_size = sizeof(struct diag_ctrl_log_mask);
struct mask_info *ptr = (struct mask_info *)driver->log_masks;
int i, size, wr_size = -ENOMEM, retry_count = 0;
mutex_lock(&driver->diag_cntl_mutex);
for (i = 0; i < MAX_EQUIP_ID; i++) {
size = (ptr->num_items+7)/8;
/* reached null entry */
if ((ptr->equip_id == 0) && (ptr->index == 0))
break;
driver->log_mask->cmd_type = DIAG_CTRL_MSG_LOG_MASK;
driver->log_mask->num_items = ptr->num_items;
driver->log_mask->data_len = 11 + size;
driver->log_mask->stream_id = 1; /* 2, if dual stream */
driver->log_mask->equip_id = ptr->equip_id;
driver->log_mask->status = driver->log_status;
switch (driver->log_status) {
case DIAG_CTRL_MASK_ALL_DISABLED:
driver->log_mask->log_mask_size = 0;
break;
case DIAG_CTRL_MASK_ALL_ENABLED:
driver->log_mask->log_mask_size = 0;
break;
case DIAG_CTRL_MASK_VALID:
driver->log_mask->log_mask_size = size;
break;
default:
/* Log status is not set or the buffer is corrupted */
pr_err("diag: In %s, invalid status %d", __func__,
driver->log_status);
driver->log_mask->status = DIAG_CTRL_MASK_INVALID;
}
if (driver->log_mask->status == DIAG_CTRL_MASK_INVALID) {
mutex_unlock(&driver->diag_cntl_mutex);
return;
}
/* send only desired update, NOT ALL */
if (equip_id == ALL_EQUIP_ID || equip_id ==
driver->log_mask->equip_id) {
memcpy(buf, driver->log_mask, header_size);
if (driver->log_status == DIAG_CTRL_MASK_VALID)
memcpy(buf + header_size,
driver->log_masks+ptr->index, size);
if (ch) {
while (retry_count < 3) {
wr_size = smd_write(ch, buf,
header_size + size);
if (wr_size == -ENOMEM) {
retry_count++;
usleep_range(10000, 10100);
} else
break;
}
if (wr_size != header_size + size)
pr_err("diag: log mask update failed %d, tried %d",
wr_size, header_size + size);
else
pr_debug("diag: updated log equip ID %d,len %d\n",
driver->log_mask->equip_id,
driver->log_mask->log_mask_size);
} else
pr_err("diag: ch not valid for log update\n");
}
ptr++;
}
mutex_unlock(&driver->diag_cntl_mutex);
}
void diag_send_event_mask_update(smd_channel_t *ch, int num_bytes)
{
void *buf = driver->buf_event_mask_update;
int header_size = sizeof(struct diag_ctrl_event_mask);
int wr_size = -ENOMEM, retry_count = 0;
mutex_lock(&driver->diag_cntl_mutex);
if (num_bytes == 0) {
pr_debug("diag: event mask not set yet, so no update\n");
mutex_unlock(&driver->diag_cntl_mutex);
return;
}
/* send event mask update */
driver->event_mask->cmd_type = DIAG_CTRL_MSG_EVENT_MASK;
driver->event_mask->data_len = 7 + num_bytes;
driver->event_mask->stream_id = 1; /* 2, if dual stream */
driver->event_mask->status = driver->event_status;
switch (driver->event_status) {
case DIAG_CTRL_MASK_ALL_DISABLED:
driver->event_mask->event_config = 0;
driver->event_mask->event_mask_size = 0;
break;
case DIAG_CTRL_MASK_ALL_ENABLED:
driver->event_mask->event_config = 1;
driver->event_mask->event_mask_size = 0;
break;
case DIAG_CTRL_MASK_VALID:
driver->event_mask->event_config = 1;
driver->event_mask->event_mask_size = num_bytes;
memcpy(buf + header_size, driver->event_masks, num_bytes);
break;
default:
/* Event status is not set yet or the buffer is corrupted */
pr_err("diag: In %s, invalid status %d", __func__,
driver->event_status);
driver->event_mask->status = DIAG_CTRL_MASK_INVALID;
}
if (driver->event_mask->status == DIAG_CTRL_MASK_INVALID) {
mutex_unlock(&driver->diag_cntl_mutex);
return;
}
memcpy(buf, driver->event_mask, header_size);
if (ch) {
while (retry_count < 3) {
wr_size = smd_write(ch, buf, header_size + num_bytes);
if (wr_size == -ENOMEM) {
retry_count++;
usleep_range(10000, 10100);
} else
break;
}
if (wr_size != header_size + num_bytes)
pr_err("diag: error writing event mask %d, tried %d\n",
wr_size, header_size + num_bytes);
} else
pr_err("diag: ch not valid for event update\n");
mutex_unlock(&driver->diag_cntl_mutex);
}
void diag_send_msg_mask_update(smd_channel_t *ch, int updated_ssid_first,
int updated_ssid_last, int proc)
{
void *buf = driver->buf_msg_mask_update;
int first, last, actual_last, size = -ENOMEM, retry_count = 0;
int header_size = sizeof(struct diag_ctrl_msg_mask);
uint8_t *ptr = driver->msg_masks;
mutex_lock(&driver->diag_cntl_mutex);
while (*(uint32_t *)(ptr + 4)) {
first = *(uint32_t *)ptr;
ptr += 4;
last = *(uint32_t *)ptr;
ptr += 4;
actual_last = *(uint32_t *)ptr;
ptr += 4;
if (!((updated_ssid_first >= first && updated_ssid_last <=
actual_last) || (updated_ssid_first == ALL_SSID))) {
ptr += MAX_SSID_PER_RANGE*4;
continue;
}
/* send f3 mask update */
driver->msg_mask->cmd_type = DIAG_CTRL_MSG_F3_MASK;
driver->msg_mask->status = driver->msg_status;
switch (driver->msg_status) {
case DIAG_CTRL_MASK_ALL_DISABLED:
driver->msg_mask->msg_mask_size = 0;
break;
case DIAG_CTRL_MASK_ALL_ENABLED:
driver->msg_mask->msg_mask_size = 1;
memcpy(buf+header_size, ptr,
4 * (driver->msg_mask->msg_mask_size));
break;
case DIAG_CTRL_MASK_VALID:
driver->msg_mask->msg_mask_size = actual_last -
first + 1;
/* Limit the msg_mask_size to MAX_SSID_PER_RANGE */
if (driver->msg_mask->msg_mask_size >
MAX_SSID_PER_RANGE) {
pr_err("diag: in %s, Invalid msg mask size %d, max: %d",
__func__,
driver->msg_mask->msg_mask_size,
MAX_SSID_PER_RANGE);
driver->msg_mask->msg_mask_size =
MAX_SSID_PER_RANGE;
}
memcpy(buf+header_size, ptr,
4 * (driver->msg_mask->msg_mask_size));
break;
default:
/* Msg status is not set or the buffer is corrupted */
pr_err("diag: In %s, invalid status %d", __func__,
driver->msg_status);
driver->msg_mask->status = DIAG_CTRL_MASK_INVALID;
}
if (driver->msg_mask->status == DIAG_CTRL_MASK_INVALID) {
mutex_unlock(&driver->diag_cntl_mutex);
return;
}
driver->msg_mask->data_len = 11 +
4 * (driver->msg_mask->msg_mask_size);
driver->msg_mask->stream_id = 1; /* 2, if dual stream */
driver->msg_mask->msg_mode = 0; /* Legcay mode */
driver->msg_mask->ssid_first = first;
driver->msg_mask->ssid_last = actual_last;
memcpy(buf, driver->msg_mask, header_size);
if (ch) {
while (retry_count < 3) {
size = smd_write(ch, buf, header_size +
4*(driver->msg_mask->msg_mask_size));
if (size == -ENOMEM) {
retry_count++;
usleep_range(10000, 10100);
} else
break;
}
if (size != header_size +
4*(driver->msg_mask->msg_mask_size))
pr_err("diag: proc %d, msg mask update fail %d, tried %d\n",
proc, size, (header_size +
4*(driver->msg_mask->msg_mask_size)));
else
pr_debug("diag: sending mask update for ssid first %d, last %d on PROC %d\n",
first, actual_last, proc);
} else
pr_err("diag: proc %d, ch invalid msg mask update\n",
proc);
ptr += MAX_SSID_PER_RANGE*4;
}
mutex_unlock(&driver->diag_cntl_mutex);
}
void diag_send_feature_mask_update(struct diag_smd_info *smd_info)
{
void *buf = driver->buf_feature_mask_update;
int header_size = sizeof(struct diag_ctrl_feature_mask);
int wr_size = -ENOMEM, retry_count = 0;
uint8_t feature_byte = 0;
int total_len = 0;
if (!smd_info) {
pr_err("diag: In %s, null smd info pointer\n",
__func__);
return;
}
if (!smd_info->ch) {
pr_err("diag: In %s, smd channel not open for peripheral: %d, type: %d\n",
__func__, smd_info->peripheral, smd_info->type);
return;
}
mutex_lock(&driver->diag_cntl_mutex);
/* send feature mask update */
driver->feature_mask->ctrl_pkt_id = DIAG_CTRL_MSG_FEATURE;
driver->feature_mask->ctrl_pkt_data_len = 4 + FEATURE_MASK_LEN_BYTES;
driver->feature_mask->feature_mask_len = FEATURE_MASK_LEN_BYTES;
memcpy(buf, driver->feature_mask, header_size);
feature_byte |= F_DIAG_INT_FEATURE_MASK;
feature_byte |= F_DIAG_LOG_ON_DEMAND_RSP_ON_MASTER;
feature_byte |= driver->supports_separate_cmdrsp ?
F_DIAG_REQ_RSP_CHANNEL : 0;
feature_byte |= driver->supports_apps_hdlc_encoding ?
F_DIAG_HDLC_ENCODE_IN_APPS_MASK : 0;
memcpy(buf+header_size, &feature_byte, FEATURE_MASK_LEN_BYTES);
total_len = header_size + FEATURE_MASK_LEN_BYTES;
while (retry_count < 3) {
wr_size = smd_write(smd_info->ch, buf, total_len);
if (wr_size == -ENOMEM) {
retry_count++;
/*
* The smd channel is full. Delay while
* smd processes existing data and smd
* has memory become available. The delay
* of 10000 was determined empirically as
* best value to use.
*/
usleep_range(10000, 10100);
} else
break;
}
if (wr_size != total_len)
pr_err("diag: In %s, peripheral %d fail feature update, size: %d, tried: %d",
__func__, smd_info->peripheral, wr_size, total_len);
mutex_unlock(&driver->diag_cntl_mutex);
}
int diag_process_apps_masks(unsigned char *buf, int len)
{
int packet_type = 1;
int i;
int ssid_first, ssid_last, ssid_range;
int rt_mask, rt_first_ssid, rt_last_ssid, rt_mask_size;
uint8_t *rt_mask_ptr;
int equip_id, num_items;
#if defined(CONFIG_DIAG_OVER_USB)
int payload_length;
#endif
/* Set log masks */
if (*buf == 0x73 && *(int *)(buf+4) == 3) {
buf += 8;
/* Read Equip ID and pass as first param below*/
diag_update_log_mask(*(int *)buf, buf+8, *(int *)(buf+4));
diag_update_userspace_clients(LOG_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x73;
*(int *)(driver->apps_rsp_buf + 4) = 0x3; /* op. ID */
*(int *)(driver->apps_rsp_buf + 8) = 0x0; /* success */
payload_length = 8 + ((*(int *)(buf + 4)) + 7)/8;
if (payload_length > APPS_BUF_SIZE - 12) {
pr_err("diag: log masks: buffer overflow\n");
return -EIO;
}
for (i = 0; i < payload_length; i++)
*(int *)(driver->apps_rsp_buf+12+i) = *(buf+i);
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_log_mask_update(
driver->smd_cntl[i].ch,
*(int *)buf);
}
encode_rsp_and_send(12 + payload_length - 1);
return 0;
}
#endif
} /* Get log masks */
else if (*buf == 0x73 && *(int *)(buf+4) == 4) {
#if defined(CONFIG_DIAG_OVER_USB)
if (!(driver->smd_data[MODEM_DATA].ch) &&
chk_apps_only()) {
equip_id = *(int *)(buf + 8);
num_items = *(int *)(buf + 12);
driver->apps_rsp_buf[0] = 0x73;
driver->apps_rsp_buf[1] = 0x0;
driver->apps_rsp_buf[2] = 0x0;
driver->apps_rsp_buf[3] = 0x0;
*(int *)(driver->apps_rsp_buf + 4) = 0x4;
if (!chk_equip_id_and_mask(equip_id,
driver->apps_rsp_buf+20))
*(int *)(driver->apps_rsp_buf + 8) = 0x0;
else
*(int *)(driver->apps_rsp_buf + 8) = 0x1;
*(int *)(driver->apps_rsp_buf + 12) = equip_id;
*(int *)(driver->apps_rsp_buf + 16) = num_items;
encode_rsp_and_send(20+(num_items+7)/8-1);
return 0;
}
#endif
} /* Disable log masks */
else if (*buf == 0x73 && *(int *)(buf+4) == 0) {
/* Disable mask for each log code */
diag_disable_log_mask();
diag_update_userspace_clients(LOG_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x73;
driver->apps_rsp_buf[1] = 0x0;
driver->apps_rsp_buf[2] = 0x0;
driver->apps_rsp_buf[3] = 0x0;
*(int *)(driver->apps_rsp_buf + 4) = 0x0;
*(int *)(driver->apps_rsp_buf + 8) = 0x0; /* status */
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_log_mask_update(
driver->smd_cntl[i].ch,
ALL_EQUIP_ID);
}
encode_rsp_and_send(11);
return 0;
}
#endif
} /* Get runtime message mask */
else if ((*buf == 0x7d) && (*(buf+1) == 0x3)) {
ssid_first = *(uint16_t *)(buf + 2);
ssid_last = *(uint16_t *)(buf + 4);
#if defined(CONFIG_DIAG_OVER_USB)
if (!(driver->smd_data[MODEM_DATA].ch) &&
chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x7d;
driver->apps_rsp_buf[1] = 0x3;
*(uint16_t *)(driver->apps_rsp_buf+2) = ssid_first;
*(uint16_t *)(driver->apps_rsp_buf+4) = ssid_last;
driver->apps_rsp_buf[6] = 0x1; /* Success Status */
driver->apps_rsp_buf[7] = 0x0;
rt_mask_ptr = driver->msg_masks;
while (*(uint32_t *)(rt_mask_ptr + 4)) {
rt_first_ssid = *(uint32_t *)rt_mask_ptr;
rt_mask_ptr += 8; /* +8 to skip 'last' */
rt_last_ssid = *(uint32_t *)rt_mask_ptr;
rt_mask_ptr += 4;
if (ssid_first == rt_first_ssid && ssid_last ==
rt_last_ssid) {
rt_mask_size = 4 * (rt_last_ssid -
rt_first_ssid + 1);
if (rt_mask_size > APPS_BUF_SIZE - 8) {
pr_err("diag: rt masks: buffer overflow\n");
return -EIO;
}
memcpy(driver->apps_rsp_buf+8,
rt_mask_ptr, rt_mask_size);
encode_rsp_and_send(8+rt_mask_size-1);
return 0;
}
rt_mask_ptr += MAX_SSID_PER_RANGE*4;
}
}
#endif
} /* Set runtime message mask */
else if ((*buf == 0x7d) && (*(buf+1) == 0x4)) {
ssid_first = *(uint16_t *)(buf + 2);
ssid_last = *(uint16_t *)(buf + 4);
if (ssid_last < ssid_first) {
pr_err("diag: Invalid msg mask ssid values, first: %d, last: %d\n",
ssid_first, ssid_last);
return -EIO;
}
ssid_range = 4 * (ssid_last - ssid_first + 1);
if (ssid_range > APPS_BUF_SIZE - 8) {
pr_err("diag: Not enough space for message mask, ssid_range: %d\n",
ssid_range);
return -EIO;
}
pr_debug("diag: received mask update for ssid_first = %d, ssid_last = %d",
ssid_first, ssid_last);
diag_update_msg_mask(ssid_first, ssid_last , buf + 8);
diag_update_userspace_clients(MSG_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
for (i = 0; i < 8 + ssid_range; i++)
*(driver->apps_rsp_buf + i) = *(buf+i);
*(driver->apps_rsp_buf + 6) = 0x1;
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_msg_mask_update(
driver->smd_cntl[i].ch,
ssid_first, ssid_last,
driver->smd_cntl[i].peripheral);
}
encode_rsp_and_send(8 + ssid_range - 1);
return 0;
}
#endif
} /* Set ALL runtime message mask */
else if ((*buf == 0x7d) && (*(buf+1) == 0x5)) {
rt_mask = *(int *)(buf + 4);
diag_set_msg_mask(rt_mask);
diag_update_userspace_clients(MSG_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x7d; /* cmd_code */
driver->apps_rsp_buf[1] = 0x5; /* set subcommand */
driver->apps_rsp_buf[2] = 1; /* success */
driver->apps_rsp_buf[3] = 0; /* rsvd */
*(int *)(driver->apps_rsp_buf + 4) = rt_mask;
/* send msg mask update to peripheral */
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_msg_mask_update(
driver->smd_cntl[i].ch,
ALL_SSID, ALL_SSID,
driver->smd_cntl[i].peripheral);
}
encode_rsp_and_send(7);
return 0;
}
#endif
} else if (*buf == 0x82) { /* event mask change */
buf += 4;
diag_event_num_bytes = (*(uint16_t *)buf)/8+1;
diag_update_event_mask(buf, diag_event_num_bytes);
diag_update_userspace_clients(EVENT_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x82;
driver->apps_rsp_buf[1] = 0x0;
*(uint16_t *)(driver->apps_rsp_buf + 2) = 0x0;
*(uint16_t *)(driver->apps_rsp_buf + 4) =
EVENT_LAST_ID + 1;
memcpy(driver->apps_rsp_buf+6, driver->event_masks,
EVENT_LAST_ID/8+1);
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_event_mask_update(
driver->smd_cntl[i].ch,
diag_event_num_bytes);
}
encode_rsp_and_send(6 + EVENT_LAST_ID/8);
return 0;
}
#endif
} else if (*buf == 0x60) {
diag_toggle_event_mask(*(buf+1));
diag_update_userspace_clients(EVENT_MASKS_TYPE);
#if defined(CONFIG_DIAG_OVER_USB)
if (chk_apps_only()) {
driver->apps_rsp_buf[0] = 0x60;
driver->apps_rsp_buf[1] = 0x0;
driver->apps_rsp_buf[2] = 0x0;
for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) {
if (driver->smd_cntl[i].ch)
diag_send_event_mask_update(
driver->smd_cntl[i].ch,
diag_event_num_bytes);
}
encode_rsp_and_send(2);
return 0;
}
#endif
} else if (*buf == 0x78) {
if (!(driver->smd_cntl[MODEM_DATA].ch) ||
(driver->log_on_demand_support)) {
driver->apps_rsp_buf[0] = 0x78;
/* Copy log code received */
*(uint16_t *)(driver->apps_rsp_buf + 1) =
*(uint16_t *)(buf + 1);
driver->apps_rsp_buf[3] = 0x1;/* Unknown */
encode_rsp_and_send(3);
}
}
return packet_type;
}
void diag_masks_init(void)
{
driver->event_status = DIAG_CTRL_MASK_INVALID;
driver->msg_status = DIAG_CTRL_MASK_INVALID;
driver->log_status = DIAG_CTRL_MASK_INVALID;
if (driver->event_mask == NULL) {
driver->event_mask = kzalloc(sizeof(
struct diag_ctrl_event_mask), GFP_KERNEL);
if (driver->event_mask == NULL)
goto err;
kmemleak_not_leak(driver->event_mask);
}
if (driver->msg_mask == NULL) {
driver->msg_mask = kzalloc(sizeof(
struct diag_ctrl_msg_mask), GFP_KERNEL);
if (driver->msg_mask == NULL)
goto err;
kmemleak_not_leak(driver->msg_mask);
}
if (driver->log_mask == NULL) {
driver->log_mask = kzalloc(sizeof(
struct diag_ctrl_log_mask), GFP_KERNEL);
if (driver->log_mask == NULL)
goto err;
kmemleak_not_leak(driver->log_mask);
}
if (driver->buf_msg_mask_update == NULL) {
driver->buf_msg_mask_update = kzalloc(APPS_BUF_SIZE,
GFP_KERNEL);
if (driver->buf_msg_mask_update == NULL)
goto err;
kmemleak_not_leak(driver->buf_msg_mask_update);
}
if (driver->buf_log_mask_update == NULL) {
driver->buf_log_mask_update = kzalloc(APPS_BUF_SIZE,
GFP_KERNEL);
if (driver->buf_log_mask_update == NULL)
goto err;
kmemleak_not_leak(driver->buf_log_mask_update);
}
if (driver->buf_event_mask_update == NULL) {
driver->buf_event_mask_update = kzalloc(APPS_BUF_SIZE,
GFP_KERNEL);
if (driver->buf_event_mask_update == NULL)
goto err;
kmemleak_not_leak(driver->buf_event_mask_update);
}
if (driver->msg_masks == NULL) {
driver->msg_masks = kzalloc(MSG_MASK_SIZE, GFP_KERNEL);
if (driver->msg_masks == NULL)
goto err;
kmemleak_not_leak(driver->msg_masks);
}
if (driver->buf_feature_mask_update == NULL) {
driver->buf_feature_mask_update = kzalloc(sizeof(
struct diag_ctrl_feature_mask) +
FEATURE_MASK_LEN_BYTES, GFP_KERNEL);
if (driver->buf_feature_mask_update == NULL)
goto err;
kmemleak_not_leak(driver->buf_feature_mask_update);
}
if (driver->feature_mask == NULL) {
driver->feature_mask = kzalloc(sizeof(
struct diag_ctrl_feature_mask), GFP_KERNEL);
if (driver->feature_mask == NULL)
goto err;
kmemleak_not_leak(driver->feature_mask);
}
diag_create_msg_mask_table();
diag_event_num_bytes = 0;
if (driver->log_masks == NULL) {
driver->log_masks = kzalloc(LOG_MASK_SIZE, GFP_KERNEL);
if (driver->log_masks == NULL)
goto err;
kmemleak_not_leak(driver->log_masks);
}
driver->log_masks_length = (sizeof(struct mask_info))*MAX_EQUIP_ID;
if (driver->event_masks == NULL) {
driver->event_masks = kzalloc(EVENT_MASK_SIZE, GFP_KERNEL);
if (driver->event_masks == NULL)
goto err;
kmemleak_not_leak(driver->event_masks);
}
return;
err:
pr_err("diag: Could not initialize diag mask buffers");
kfree(driver->event_mask);
kfree(driver->log_mask);
kfree(driver->msg_mask);
kfree(driver->msg_masks);
kfree(driver->log_masks);
kfree(driver->event_masks);
kfree(driver->feature_mask);
kfree(driver->buf_feature_mask_update);
}
void diag_masks_exit(void)
{
kfree(driver->event_mask);
kfree(driver->log_mask);
kfree(driver->msg_mask);
kfree(driver->msg_masks);
kfree(driver->log_masks);
kfree(driver->event_masks);
kfree(driver->feature_mask);
kfree(driver->buf_feature_mask_update);
}
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