/*lint -e666*/
static ssize_t vsync_show_event(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret = 0;
struct fb_info *fbi = NULL;
struct hisi_fb_data_type *hisifd = NULL;
ktime_t prev_timestamp;
BUG_ON(dev == NULL);
fbi = dev_get_drvdata(dev);
BUG_ON(fbi == NULL);
hisifd = (struct hisi_fb_data_type *)fbi->par;
BUG_ON(hisifd == NULL);
prev_timestamp = hisifd->vsync_ctrl.vsync_timestamp;
ret = wait_event_interruptible(
hisifd->vsync_ctrl.vsync_wait,
vsync_timestamp_changed(hisifd, prev_timestamp) &&
hisifd->vsync_ctrl.vsync_enabled);
/*if (ret == 0) {
HISI_FB_ERR("wait vsync timeout!");
return -ETIMEDOUT;
}*/
if (ret == 0) {
ret = snprintf(buf, PAGE_SIZE, "VSYNC=%llu",
ktime_to_ns(hisifd->vsync_ctrl.vsync_timestamp));
buf[strlen(buf) + 1] = '\0';
}
return ret;
}
static int wait_for_vsync_thread(void *data)
{
struct hisi_fb_data_type *hisifd = (struct hisi_fb_data_type *)data;
ktime_t prev_timestamp;
int ret = 0;
while (!kthread_should_stop()) {
prev_timestamp = hisifd->vsync_ctrl.vsync_timestamp;
ret = wait_event_interruptible_timeout(
hisifd->vsync_ctrl.vsync_wait,
vsync_timestamp_changed(hisifd, prev_timestamp) &&
hisifd->vsync_ctrl.vsync_enabled,
msecs_to_jiffies(VSYNC_TIMEOUT_MSEC));
/*if (ret == 0) {
HISI_FB_ERR("wait vsync timeout!");
return -ETIMEDOUT;
}*/
if (ret > 0) {
char *envp[2];
char buf[64];
/* fb%d_VSYNC=%llu */
snprintf(buf, sizeof(buf), "VSYNC=%llu",
ktime_to_ns(hisifd->vsync_ctrl.vsync_timestamp));
envp[0] = buf;
envp[1] = NULL;
kobject_uevent_env(&hisifd->pdev->dev.kobj, KOBJ_CHANGE, envp);
}
}
return 0;
}
static ssize_t vsync_show_event(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret = 0;
int vsync_flag = 0;
int secure_flag = 0;
struct fb_info *fbi = NULL;
struct hisi_fb_data_type *hisifd = NULL;
struct hisifb_secure *secure_ctrl = NULL;
ktime_t prev_timestamp;
if (NULL == dev) {
HISI_FB_ERR("NULL Pointer.\n");
return 0;
}
fbi = dev_get_drvdata(dev);
if (NULL == fbi) {
HISI_FB_ERR("NULL Pointer.\n");
return 0;
}
hisifd = (struct hisi_fb_data_type *)fbi->par;
if (NULL == hisifd) {
HISI_FB_ERR("NULL Pointer.\n");
return 0;
}
secure_ctrl = &(hisifd->secure_ctrl);
if (NULL == secure_ctrl) {
HISI_FB_ERR("NULL Pointer.\n");
return 0;
}
if (NULL == buf) {
HISI_FB_ERR("NULL Pointer.\n");
return 0;
}
prev_timestamp = hisifd->vsync_ctrl.vsync_timestamp;
/*lint -e666*/
ret = wait_event_interruptible(hisifd->vsync_ctrl.vsync_wait,
(vsync_timestamp_changed(hisifd, prev_timestamp) && hisifd->vsync_ctrl.vsync_enabled)
|| (secure_ctrl->tui_need_switch));
/*lint +e666*/
vsync_flag = (vsync_timestamp_changed(hisifd, prev_timestamp) &&
hisifd->vsync_ctrl.vsync_enabled);
secure_flag = secure_ctrl->tui_need_switch;
if (vsync_flag && secure_flag) {
HISI_FB_INFO("report (secure_event = %d) to hwc with vsync at (frame_no = %d).\n", \
secure_ctrl->secure_event, hisifd->ov_req.frame_no);
ret = snprintf(buf, PAGE_SIZE, "VSYNC=%llu, SecureEvent=%d \n",
ktime_to_ns(hisifd->vsync_ctrl.vsync_timestamp), secure_ctrl->secure_event);
buf[strlen(buf) + 1] = '\0';
if (secure_ctrl->secure_event == DSS_SEC_DISABLE) {
secure_ctrl->tui_need_switch = 0;
}
} else if (vsync_flag) {
ret = snprintf(buf, PAGE_SIZE, "VSYNC=%llu, xxxxxxevent=x \n",
ktime_to_ns(hisifd->vsync_ctrl.vsync_timestamp));
buf[strlen(buf) + 1] = '\0';
secure_ctrl->tui_need_skip_report = 0;
} else if (secure_flag && !secure_ctrl->tui_need_skip_report) {
HISI_FB_INFO("report (secure_event = %d) to hwc at (frame_no = %d).\n", \
secure_ctrl->secure_event, hisifd->ov_req.frame_no);
ret = snprintf(buf, PAGE_SIZE, "xxxxx=%llu, SecureEvent=%d \n",
ktime_to_ns(hisifd->vsync_ctrl.vsync_timestamp), secure_ctrl->secure_event);
buf[strlen(buf) + 1] = '\0';
secure_ctrl->tui_need_skip_report = 1;
if (secure_ctrl->secure_event == DSS_SEC_DISABLE) {
secure_ctrl->tui_need_switch = 0;
}
} else {
;//do nothing
}
return ret;
}