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misc: rk628: post_process: add scaler color_bar debugfs node

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Enable horizontal color bar
echo 1 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar

Enable vertical color bar
echo 2 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar

Disable color bar
echo 0 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar

Change-Id: Ic47d7edf27f174b16ea1c2841cbf7b9df8c63546
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-12-06 04:22:17 +00:00
committed by Tao Huang
parent f459a547f8
commit 92f7012d3c
4 changed files with 65 additions and 1 deletions
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2
drivers/misc/rk628/rk628.c
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@@ -1224,6 +1224,8 @@ static void rk628_debugfs_create(struct rk628 *rk628)
/* path example: /sys/kernel/debug/rk628/2-0050/summary */
debugfs_create_file("summary", 0400, rk628->debug_dir, rk628,
&rk628_debugfs_summary_fops);
rk628_post_process_create_debugfs_file(rk628);
rk628_mipi_dsi_create_debugfs_file(rk628);
}

2
drivers/misc/rk628/rk628.h
View File

@@ -66,6 +66,8 @@
#define GRF_AS_DSIPHY(x) UPDATE(x, 0, 0)
#define GRF_SCALER_CON0 0x0010
#define SCL_8_PIXEL_ALIGN(x) HIWORD_UPDATE(x, 12, 12)
#define SCL_COLOR_VER_EN(x) HIWORD_UPDATE(x, 10, 10)
#define SCL_COLOR_BAR_EN(x) HIWORD_UPDATE(x, 9, 9)
#define SCL_VER_DOWN_MODE(x) HIWORD_UPDATE(x, 8, 8)
#define SCL_HOR_DOWN_MODE(x) HIWORD_UPDATE(x, 7, 7)
#define SCL_BIC_COE_SEL(x) HIWORD_UPDATE(x, 6, 5)

60
drivers/misc/rk628/rk628_post_process.c
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@@ -4,6 +4,8 @@
*
* Author: Wyon Bi <bivvy.bi@rock-chips.com>
*/
#include <linux/debugfs.h>
#include "rk628.h"
#include "rk628_config.h"
#include "rk628_cru.h"
@@ -198,6 +200,64 @@ static void rk628_post_process_scaler_init(struct rk628 *rk628,
DSP_VBOR_ST(dsp_vbor_st));
}
static int rk628_scaler_color_bar_show(struct seq_file *s, void *data)
{
seq_puts(s, " Enable horizontal color bar:\n");
seq_puts(s, " example: echo 1 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar\n");
seq_puts(s, " Enable vertical color bar:\n");
seq_puts(s, " example: echo 2 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar\n");
seq_puts(s, " Disable color bar:\n");
seq_puts(s, " example: echo 0 > /sys/kernel/debug/rk628/2-0050/scaler_color_bar\n");
return 0;
}
static int rk628_scaler_color_bar_open(struct inode *inode, struct file *file)
{
return single_open(file, rk628_scaler_color_bar_show, inode->i_private);
}
static ssize_t rk628_scaler_color_bar_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct rk628 *rk628 = ((struct seq_file *)file->private_data)->private;
u8 mode;
if (kstrtou8_from_user(ubuf, len, 0, &mode))
return -EFAULT;
switch (mode) {
case 0:
rk628_i2c_write(rk628, GRF_SCALER_CON0, SCL_COLOR_BAR_EN(0));
break;
case 1:
rk628_i2c_write(rk628, GRF_SCALER_CON0, SCL_COLOR_BAR_EN(1));
rk628_i2c_write(rk628, GRF_SCALER_CON0, SCL_COLOR_VER_EN(0));
break;
case 2:
default:
rk628_i2c_write(rk628, GRF_SCALER_CON0, SCL_COLOR_BAR_EN(1));
rk628_i2c_write(rk628, GRF_SCALER_CON0, SCL_COLOR_VER_EN(1));
}
return len;
}
static const struct file_operations rk628_scaler_color_bar_fops = {
.owner = THIS_MODULE,
.open = rk628_scaler_color_bar_open,
.read = seq_read,
.write = rk628_scaler_color_bar_write,
.llseek = seq_lseek,
.release = single_release,
};
void rk628_post_process_create_debugfs_file(struct rk628 *rk628)
{
debugfs_create_file("scaler_color_bar", 0600, rk628->debug_dir,
rk628, &rk628_scaler_color_bar_fops);
}
void rk628_post_process_init(struct rk628 *rk628)
{
struct rk628_display_mode *src = &rk628->src_mode;

2
drivers/misc/rk628/rk628_post_process.h
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@@ -11,5 +11,5 @@
void rk628_post_process_init(struct rk628 *rk628);
void rk628_post_process_enable(struct rk628 *rk628);
void rk628_post_process_disable(struct rk628 *rk628);
void rk628_post_process_create_debugfs_file(struct rk628 *rk628);
#endif