266 lines
9.0 KiB
C++
266 lines
9.0 KiB
C++
/*
|
|
Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the following
|
|
disclaimer in the documentation and/or other materials provided
|
|
with the distribution.
|
|
* Neither the name of The Linux Foundation nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <private/android_filesystem_config.h>
|
|
|
|
#include "vendor_init.h"
|
|
#include "property_service.h"
|
|
#include "log.h"
|
|
#include "util.h"
|
|
|
|
#include "init_msm.h"
|
|
|
|
#include <sys/resource.h>
|
|
|
|
#define SOC_ID_PATH1 "/sys/devices/soc0/soc_id"
|
|
#define SOC_ID_PATH2 "/sys/devices/system/soc/soc0/id"
|
|
#define SOC_VER_PATH1 "/sys/devices/soc0/platform_version"
|
|
#define SOC_VER_PATH2 "/sys/devices/system/soc/soc0/platform_version"
|
|
#define BOARD_TYPE_PATH1 "/sys/devices/soc0/hw_platform"
|
|
#define BOARD_TYPE_PATH2 "/sys/devices/system/soc/soc0/hw_platform"
|
|
|
|
#define BUF_SIZE 64
|
|
#define STRCONV_(x) #x
|
|
#define STRCONV(x) "%" STRCONV_(x) "s"
|
|
|
|
static unsigned long msm_id;
|
|
static unsigned long msm_ver;
|
|
static char board_type[BUF_SIZE];
|
|
static char tmp[BUF_SIZE];
|
|
|
|
// sys and dev fb paths
|
|
char sys_fb_path[] = "/sys/class/graphics/";
|
|
char dev_fb_path[] = "/dev/graphics/";
|
|
#define DEV_GFX_HDMI "/dev/graphics/hdmi"
|
|
|
|
__attribute__ ((weak))
|
|
void init_msm_properties(unsigned long soc, unsigned long socrev, char *board)
|
|
{
|
|
UNUSED(soc);
|
|
UNUSED(socrev);
|
|
UNUSED(board);
|
|
}
|
|
|
|
int read_file2(const char *fname, char *data, int max_size)
|
|
{
|
|
int fd, rc;
|
|
|
|
if (max_size < 1)
|
|
return 0;
|
|
|
|
fd = open(fname, O_RDONLY);
|
|
if (fd < 0) {
|
|
ERROR("failed to open '%s'\n", fname);
|
|
return 0;
|
|
}
|
|
|
|
rc = read(fd, data, max_size - 1);
|
|
if ((rc > 0) && (rc < max_size))
|
|
data[rc] = '\0';
|
|
else
|
|
data[0] = '\0';
|
|
close(fd);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* setPerms: sets the permission to the file node
|
|
* @path: file node
|
|
* @mode: permissions to be set(0664)
|
|
*/
|
|
void setPerms(char *path, uint32_t mode)
|
|
{
|
|
// set the permission if the file exists
|
|
int fd = open(path, O_RDONLY | O_NOFOLLOW);
|
|
if (fd >= 0) {
|
|
if (fchmod(fd, mode) < 0)
|
|
ERROR("chmod failed for %s: errno = %d", path, errno);
|
|
close(fd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* setOwners: sets the owner and group for a file node
|
|
* @path: file node
|
|
* @owner: AID for owner
|
|
* @group: AID for group
|
|
*/
|
|
void setOwners(char *path, int owner, int group)
|
|
{
|
|
// set the permissinn if the file exists
|
|
int fd = open(path, O_RDONLY | O_NOFOLLOW);
|
|
if (fd >= 0) {
|
|
if (fchown(fd, owner, group) < 0)
|
|
ERROR(" chown failed for %s: errno = %d", path, errno);
|
|
close(fd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Setup Display related nodes & permissions. For HDMI, it can be fb1 or fb2
|
|
* Loop through the sysfs nodes and determine the HDMI(dtv panel)
|
|
*/
|
|
void set_display_node_perms()
|
|
{
|
|
char panel_type[] = "dtv panel";
|
|
char buf[BUF_SIZE];
|
|
int num;
|
|
|
|
for (num=0; num<=2; num++) {
|
|
snprintf(tmp,sizeof(tmp),"%sfb%d/msm_fb_type", sys_fb_path, num);
|
|
if(read_file2(tmp, buf, sizeof(buf))) {
|
|
if(!strncmp(buf, panel_type, strlen(panel_type))) {
|
|
// Set appropriate permissions for the nodes
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/hpd", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/res_info", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/vendor_name", sys_fb_path,
|
|
num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/product_description",
|
|
sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/video_mode",
|
|
sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/format_3d", sys_fb_path,
|
|
num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/s3d_mode", sys_fb_path,
|
|
num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/hdcp/tp", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/cec/enable", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/cec/logical_addr", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/cec/rd_msg", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/pa", sys_fb_path, num);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d/cec/wr_msg", sys_fb_path, num);
|
|
setPerms(tmp, 0600);
|
|
setOwners(tmp, AID_SYSTEM, AID_SYSTEM);
|
|
snprintf(tmp, sizeof(tmp), "%sfb%d", dev_fb_path, num);
|
|
symlink(tmp, DEV_GFX_HDMI);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// Set the permission for idle_time.
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/idle_time", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
|
|
// Set the permission for mdp/bw_mode_bitmap.
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/mdp/bw_mode_bitmap", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
|
|
// Set write permission for dynamic_fps node.
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/dynamic_fps", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
// Set permissions for dynamic partial update
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/dyn_pu", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/modes", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
|
|
snprintf(tmp, sizeof(tmp), "%sfb0/mode", sys_fb_path);
|
|
setPerms(tmp, 0664);
|
|
setOwners(tmp, AID_SYSTEM, AID_GRAPHICS);
|
|
}
|
|
|
|
void vendor_load_properties()
|
|
{
|
|
int rc;
|
|
|
|
/* Collect MSM info */
|
|
rc = read_file2(SOC_ID_PATH1, tmp, sizeof(tmp));
|
|
if (!rc) {
|
|
rc = read_file2(SOC_ID_PATH2, tmp, sizeof(tmp));
|
|
}
|
|
if (rc) {
|
|
msm_id = strtoul(tmp, NULL, 0);
|
|
}
|
|
rc = read_file2(SOC_VER_PATH1, tmp, sizeof(tmp));
|
|
if (!rc) {
|
|
rc = read_file2(SOC_VER_PATH2, tmp, sizeof(tmp));
|
|
}
|
|
if (rc) {
|
|
msm_ver = strtoul(tmp, NULL, 0);
|
|
}
|
|
rc = read_file2(BOARD_TYPE_PATH1, tmp, sizeof(tmp));
|
|
if (!rc) {
|
|
rc = read_file2(BOARD_TYPE_PATH2, tmp, sizeof(tmp));
|
|
}
|
|
if (rc) {
|
|
sscanf(tmp, STRCONV(BUF_SIZE), board_type);
|
|
}
|
|
if (!msm_id) {
|
|
/* abort */
|
|
ERROR("MSM SOC detection failed, skipping MSM initialization\n");
|
|
return;
|
|
}
|
|
|
|
ERROR("Detected MSM SOC ID=%lu SOC VER=%lu BOARD TYPE=%s\n",
|
|
msm_id, msm_ver, board_type);
|
|
|
|
/* Define MSM family properties */
|
|
init_msm_properties(msm_id, msm_ver, board_type);
|
|
|
|
/* Set Display Node Permissions */
|
|
set_display_node_perms();
|
|
}
|