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media: rockchip: hdmirx: add debug node

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1. sys/class/hdmirx/hdmirx/status show connected or disconnected
2. echo on/off to control hpd

Signed-off-by: Chen Shunqing <csq@rock-chips.com>
Change-Id: Ib7fecdb7d227158e5278270b166b69ec2beaf8c4
This commit is contained in:
Chen Shunqing
2022-09-16 12:49:40 +00:00
committed by Tao Huang
parent 74c8bbbd67
commit 4e01b0c2ea
1 changed files with 64 additions and 1 deletions
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65
drivers/media/platform/rockchip/hdmirx/rk_hdmirx.c
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@@ -221,6 +221,8 @@ struct rk_hdmirx_dev {
bool freq_qos_add;
bool get_timing;
bool cec_enable;
bool hpd_on;
bool force_off;
u8 hdcp_enable;
u32 num_clks;
u32 edid_blocks_written;
@@ -975,6 +977,9 @@ static void hdmirx_hpd_ctrl(struct rk_hdmirx_dev *hdmirx_dev, bool en)
{
struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
if (hdmirx_dev->force_off && en)
return;
v4l2_dbg(1, debug, v4l2_dev, "%s: %sable, hpd_trigger_level:%d\n",
__func__, en ? "en" : "dis",
hdmirx_dev->hpd_trigger_level);
@@ -984,6 +989,7 @@ static void hdmirx_hpd_ctrl(struct rk_hdmirx_dev *hdmirx_dev, bool en)
HDCP1_P0_GPIO_IN_SEL | HDCP1_P0_GPIO_IN_SEL << 16);
hdmirx_dev->hdcp->hdcp2_connect_ctrl(hdmirx_dev->hdcp, en);
}
hdmirx_dev->hpd_on = en;
}
static int hdmirx_write_edid(struct rk_hdmirx_dev *hdmirx_dev,
@@ -3399,14 +3405,54 @@ static ssize_t edid_store(struct device *dev,
return count;
}
static ssize_t status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct rk_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
if (!hdmirx_dev)
return -EINVAL;
return snprintf(buf, PAGE_SIZE, "%s\n",
hdmirx_dev->hpd_on ? "connected" : "disconnected");
}
static ssize_t status_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct rk_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
if (!hdmirx_dev)
return -EINVAL;
if (sysfs_streq(buf, "on")) {
hdmirx_dev->force_off = false;
if (!tx_5v_power_present(hdmirx_dev))
return count;
hdmirx_hpd_ctrl(hdmirx_dev, true);
} else if (sysfs_streq(buf, "off")) {
hdmirx_dev->force_off = true;
if (!tx_5v_power_present(hdmirx_dev))
return count;
hdmirx_hpd_ctrl(hdmirx_dev, false);
} else {
return -EINVAL;
}
return count;
}
static DEVICE_ATTR_RO(audio_rate);
static DEVICE_ATTR_RO(audio_present);
static DEVICE_ATTR_RW(edid);
static DEVICE_ATTR_RW(status);
static struct attribute *hdmirx_attrs[] = {
&dev_attr_audio_rate.attr,
&dev_attr_audio_present.attr,
&dev_attr_edid.attr,
&dev_attr_status.attr,
NULL
};
ATTRIBUTE_GROUPS(hdmirx);
@@ -3764,7 +3810,7 @@ static int hdmirx_status_show(struct seq_file *s, void *v)
else
seq_puts(s, "UNKNOWN\n");
seq_printf(s, "Mode: %ux%u%s%u (%ux%u)",
seq_printf(s, "Timing: %ux%u%s%u (%ux%u)",
bt->width, bt->height, bt->interlaced ? "i" : "p",
fps, htot, vtot);
@@ -3772,6 +3818,23 @@ static int hdmirx_status_show(struct seq_file *s, void *v)
bt->hfrontporch, bt->hsync, bt->hbackporch,
bt->vfrontporch, bt->vsync, bt->vbackporch);
seq_printf(s, "Pixel Clk: %llu\n", bt->pixelclock);
seq_printf(s, "Mode: %s\n", hdmirx_dev->is_dvi_mode ? "DVI" : "HDMI");
hdmirx_get_color_range(hdmirx_dev);
seq_puts(s, "Color Range: ");
if (hdmirx_dev->cur_color_range == HDMIRX_DEFAULT_RANGE)
seq_puts(s, "DEFAULT\n");
else if (hdmirx_dev->cur_color_range == HDMIRX_FULL_RANGE)
seq_puts(s, "FULL\n");
else
seq_puts(s, "LIMITED\n");
hdmirx_get_color_space(hdmirx_dev);
seq_puts(s, "Color Space: ");
if (hdmirx_dev->cur_color_space < 8)
seq_printf(s, "%s\n", hdmirx_color_space[hdmirx_dev->cur_color_space]);
else
seq_puts(s, "Unknown\n");
return 0;
}