tvafe: add control for tvconfig snow config [1/1]

PD#SWPL-5985

Problem:
display snow when snow config disabled

Solution:
add control for tvconfig snow config

Verify:
verify it on x301

Change-Id: I3466efc98577f2403f3a6cd638ad7dbf70ce34dc
Signed-off-by: Nian Jing <nian.jing@amlogic.com>

drivers/amlogic/media/vin/tvin/tvafe/tvafe.c

@@ -101,6 +101,8 @@ static int cutwindow_val_h_level2 = 18;
 static int cutwindow_val_h_level3 = 20;
 static int cutwindow_val_h_level4 = 62;/*48-->62 for ntsc-m*/
 
+/*tvconfig snow config*/
+static bool snow_cfg;
 /*1: snow function on;*/
 /*0: off snow function*/
 bool tvafe_snow_function_flag;
@@ -822,6 +824,18 @@ static bool tvafe_cvbs_get_secam_phase(struct tvin_frontend_s *fe)
 
 }
 
+bool tvafe_get_snow_cfg(void)
+{
+	return snow_cfg;
+}
+EXPORT_SYMBOL(tvafe_get_snow_cfg);
+
+void tvafe_set_snow_cfg(bool cfg)
+{
+	snow_cfg = cfg;
+}
+EXPORT_SYMBOL(tvafe_set_snow_cfg);
+
 /**check frame skip,only for av input*/
 static bool tvafe_cvbs_check_frame_skip(struct tvin_frontend_s *fe)
 {
@@ -892,6 +906,7 @@ static long tvafe_ioctl(struct file *file,
 				unsigned int cmd, unsigned long arg)
 {
 	long ret = 0;
+	unsigned int snowcfg = 0;
 	void __user *argp = (void __user *)arg;
 	struct tvafe_dev_s *devp = file->private_data;
 	struct tvafe_info_s *tvafe = &devp->tvafe;
@@ -907,8 +922,8 @@ static long tvafe_ioctl(struct file *file,
 		return -EPERM;
 
 	mutex_lock(&devp->afe_mutex);
-	if (!(devp->flags & TVAFE_FLAG_DEV_OPENED)) {
-
+	if (!(devp->flags & TVAFE_FLAG_DEV_OPENED) &&
+		cmd != TVIN_IOC_S_AFE_SONWCFG) {
 		tvafe_pr_info("%s, tvafe device is disable, ignore the command %d\n",
 				__func__, cmd);
 		mutex_unlock(&devp->afe_mutex);
@@ -936,6 +951,20 @@ static long tvafe_ioctl(struct file *file,
 
 		break;
 		}
+	case TVIN_IOC_S_AFE_SONWCFG:
+		/*tl1/txhd tvconfig snow en/disable*/
+		if (copy_from_user(&snowcfg, argp,
+			sizeof(unsigned int))) {
+			tvafe_pr_info("snowcfg: get param err\n");
+			ret = -EINVAL;
+			break;
+		}
+		if (snowcfg == 1)
+			tvafe_set_snow_cfg(true);
+		else
+			tvafe_set_snow_cfg(false);
+		tvafe_pr_info("tvconfig snow:%d\n", snow_cfg);
+		break;
 	case TVIN_IOC_S_AFE_SONWON:
 		devp->flags |= TVAFE_FLAG_DEV_SNOW_FLAG;
 		tvafe_snow_function_flag = true;

drivers/amlogic/media/vin/tvin/tvafe/tvafe.h

@@ -32,7 +32,7 @@
 /* ************************************************* */
 /* *** macro definitions ********************************************* */
 /* *********************************************************** */
-#define TVAFE_VER "Ref.2018/06/27"
+#define TVAFE_VER "Ref.2019/03/18"
 
 /* used to set the flag of tvafe_dev_s */
 #define TVAFE_FLAG_DEV_OPENED 0x00000010
@@ -94,6 +94,9 @@ struct tvafe_dev_s {
 	unsigned int sizeof_tvafe_dev_s;
 };
 
+bool tvafe_get_snow_cfg(void);
+void tvafe_set_snow_cfg(bool cfg);
+
 typedef int (*hook_func_t)(void);
 extern void aml_fe_hook_cvd(hook_func_t atv_mode,
 		hook_func_t cvd_hv_lock, hook_func_t get_fmt);

drivers/amlogic/media/vin/tvin/tvafe/tvafe_cvd.c

@@ -27,6 +27,7 @@
 #include <linux/amlogic/media/frame_provider/tvin/tvin.h>
 #include "../tvin_global.h"
 #include "../tvin_format_table.h"
+#include "tvafe.h"
 #include "tvafe_regs.h"
 #include "tvafe_cvd.h"
 #include "tvafe_debug.h"
@@ -418,8 +419,9 @@ static void tvafe_cvd2_write_mode_reg(struct tvafe_cvd2_s *cvd2,
 	}
 
 	/*setting for txhd snow*/
-	if (tvafe_cpu_type() == CPU_TYPE_TXHD ||
-		tvafe_cpu_type() == CPU_TYPE_TL1) {
+	if (tvafe_get_snow_cfg() &&
+		(tvafe_cpu_type() == CPU_TYPE_TXHD ||
+		tvafe_cpu_type() == CPU_TYPE_TL1)) {
 		W_APB_BIT(CVD2_OUTPUT_CONTROL, 3, 5, 2);
 		W_APB_REG(ACD_REG_6C, 0x80500000);
 	}

drivers/amlogic/media/vin/tvin/tvafe/tvafe_debug.c

@@ -256,6 +256,18 @@ static ssize_t tvafe_store(struct device *dev,
 		}
 	} else if (!strncmp(buff, "afe_ver", strlen("afe_ver"))) {
 		tvafe_pr_info("tvafe version :  %s\n", TVAFE_VER);
+	} else if (!strncmp(buff, "snowcfg", strlen("snowcfg"))) {
+		if (kstrtoul(parm[1], 10, &val) < 0) {
+			kfree(buf_orig);
+			return -EINVAL;
+		}
+		if (val) {
+			tvafe_set_snow_cfg(true);
+			tvafe_pr_info("[tvafe..]hadware snow cfg en\n");
+		} else {
+			tvafe_set_snow_cfg(false);
+			tvafe_pr_info("[tvafe..]hadware snow cfg dis\n");
+		}
 	} else if (!strncmp(buff, "snowon", strlen("snowon"))) {
 		if (kstrtoul(parm[1], 10, &val) < 0) {
 			kfree(buf_orig);

include/linux/amlogic/media/frame_provider/tvin/tvin.h

@@ -465,6 +465,7 @@ struct tvafe_pin_mux_s {
 #define TVIN_IOC_G_VDIN_HIST       _IOW(_TM_T, 0x24, struct vdin_hist_s)
 #define TVIN_IOC_S_VDIN_V4L2START  _IOW(_TM_T, 0x25, struct vdin_v4l2_param_s)
 #define TVIN_IOC_S_VDIN_V4L2STOP   _IO(_TM_T, 0x26)
+#define TVIN_IOC_S_AFE_SONWCFG     _IOW(_TM_T, 0x27, unsigned int)
 
 /*
  *function defined applied for other driver