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PD#138714: vout: add tvout mode monitor for box

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add sysfs node /sys/class/display/mode_flag,
change mode_flag to 0 to stop monitor tvout mode.

Change-Id: Ibb3ab599c94e0beece83895605f9cc779b6dc09a
Signed-off-by: Evoke Zhang <evoke.zhang@amlogic.com>
This commit is contained in:
Evoke Zhang
2017-04-12 14:07:31 +08:00
committed by Jianxin Pan
parent 5e951a45f3
commit 69476fe4ed
1 changed files with 132 additions and 2 deletions
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134
drivers/amlogic/media/vout/vout_serve/vout_serve.c
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@@ -36,6 +36,9 @@
/* Amlogic Headers */
#include <linux/amlogic/media/vout/vout_notify.h>
#ifdef CONFIG_AMLOGIC_HDMITX
#include <linux/amlogic/media/vout/hdmi_tx/hdmi_tx_module.h>
#endif
/* Local Headers */
#include "vout_serve.h"
@@ -49,9 +52,8 @@ static int early_suspend_flag;
static int early_resume_flag;
#endif
#define VOUT_CLASS_NAME "display"
#define MAX_NUMBER_PARA 10
#define MAX_NUMBER_PARA 10
static struct class *vout_class;
static DEFINE_MUTEX(vout_mutex);
@@ -63,6 +65,14 @@ static char vout_axis[64] __nosavedata;
static u32 vout_init_vmode = VMODE_INIT_NULL;
static int uboot_display;
static char hdmimode[64];
static char cvbsmode[64];
static enum vmode_e last_vmode = VMODE_MAX;
static int tvout_monitor_flag = 1;
static struct delayed_work tvout_mode_work;
static DEFINE_MUTEX(tvout_mode_lock);
void update_vout_mode(char *name)
{
snprintf(vout_mode, 60, "%s", name);
@@ -126,6 +136,7 @@ static int set_vout_init_mode(void)
vout_mode_uboot);
return -1;
}
last_vmode = vout_init_vmode;
if (uboot_display)
vmode = vout_init_vmode | VMODE_INIT_BIT_MASK;
@@ -329,6 +340,33 @@ static ssize_t vout_vinfo_show(struct class *class,
return len;
}
static ssize_t vout_mode_flag_show(struct class *class,
struct class_attribute *attr, char *buf)
{
int ret = 0;
ret = sprintf(buf, "%d\n", tvout_monitor_flag);
return ret;
}
static ssize_t vout_mode_flag_store(struct class *class,
struct class_attribute *attr, const char *buf, size_t count)
{
int ret = 0;
ret = kstrtoint(buf, 10, &tvout_monitor_flag);
if (ret == 1) {
VOUTPR("%s: tvout_monitor_flag = %d\n",
__func__, tvout_monitor_flag);
} else {
VOUTPR("%s: invalid data\n", __func__);
return -EINVAL;
}
return count;
}
static struct class_attribute vout_class_attrs[] = {
__ATTR(mode, 0644, vout_mode_show, vout_mode_store),
#ifdef CONFIG_AMLOGIC_FB
@@ -337,6 +375,7 @@ static struct class_attribute vout_class_attrs[] = {
__ATTR(fr_policy, 0644,
vout_fr_policy_show, vout_fr_policy_store),
__ATTR(vinfo, 0644, vout_vinfo_show, NULL),
__ATTR(mode_flag, 0644, vout_mode_flag_show, vout_mode_flag_store),
};
static int vout_create_attr(void)
@@ -484,6 +523,75 @@ static void aml_vout_late_resume(struct early_suspend *h)
}
#endif
/* ***************************************************** */
/* hdmi/cvbs output mode monitor */
/* ***************************************************** */
static int refresh_tvout_mode(void)
{
enum vmode_e cur_vmode = VMODE_MAX;
char *cur_mode_str;
int hdp_state = 0;
if (tvout_monitor_flag == 0)
return 0;
#ifdef CONFIG_AMLOGIC_HDMITX
hdp_state = get_hpd_state();
#endif
if (hdp_state) {
cur_vmode = validate_vmode(hdmimode);
cur_mode_str = hdmimode;
} else {
cur_vmode = validate_vmode(cvbsmode);
cur_mode_str = cvbsmode;
}
if (cur_vmode >= VMODE_MAX) {
VOUTERR("%s: no matched cur_mode: %s\n",
__func__, cur_mode_str);
return -1;
}
/* not box platform */
if ((cur_vmode != VMODE_HDMI) && (cur_vmode != VMODE_CVBS))
return -1;
if (cur_vmode != last_vmode) {
VOUTPR("%s: mode chang\n", __func__);
if (set_vout_mode(cur_mode_str) == 0)
strcpy(vout_mode, cur_mode_str);
last_vmode = cur_vmode;
}
return 0;
}
static void aml_tvout_mode_work(struct work_struct *work)
{
mutex_lock(&tvout_mode_lock);
refresh_tvout_mode();
mutex_unlock(&tvout_mode_lock);
if (tvout_monitor_flag)
schedule_delayed_work(&tvout_mode_work, 1*HZ/2);
}
static void aml_tvout_mode_monitor(void)
{
if ((vout_init_vmode != VMODE_HDMI) && (vout_init_vmode != VMODE_CVBS))
return;
VOUTPR("%s\n", __func__);
last_vmode = vout_init_vmode;
tvout_monitor_flag = 1;
INIT_DELAYED_WORK(&tvout_mode_work, aml_tvout_mode_work);
mutex_lock(&tvout_mode_lock);
refresh_tvout_mode();
mutex_unlock(&tvout_mode_lock);
schedule_delayed_work(&tvout_mode_work, 1*HZ/2);
}
/*****************************************************************
**
** vout driver interface
@@ -510,6 +618,8 @@ static int aml_vout_probe(struct platform_device *pdev)
else
VOUTERR("create vout attribute FAILED\n");
aml_tvout_mode_monitor();
VOUTPR("%s OK\n", __func__);
return ret;
}
@@ -653,6 +763,26 @@ static int __init get_vout_init_mode(char *str)
}
__setup("vout=", get_vout_init_mode);
static int __init get_hdmi_mode(char *str)
{
strcpy(hdmimode, str);
VOUTPR("get hdmimode: %s\n", str);
return 1;
}
__setup("hdmimode=", get_hdmi_mode);
static int __init get_cvbs_mode(char *str)
{
if ((strncmp("480", str, 3) == 0) || (strncmp("576", str, 3) == 0))
strcpy(cvbsmode, str);
else if (strncmp("nocvbs", str, 6) == 0)
strcpy(cvbsmode, "invalid");
VOUTPR("get cvbsmode: %s\n", str);
return 1;
}
__setup("cvbsmode=", get_cvbs_mode);
MODULE_AUTHOR("Platform-BJ <platform.bj@amlogic.com>");
MODULE_DESCRIPTION("VOUT Server Module");
MODULE_LICENSE("GPL");