From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file
---
kernel/drivers/video/hdmi.c | 130 ++++++++++++++++++++-----------------------
1 files changed, 60 insertions(+), 70 deletions(-)
diff --git a/kernel/drivers/video/hdmi.c b/kernel/drivers/video/hdmi.c
index fe34133..b7a1d6f 100644
--- a/kernel/drivers/video/hdmi.c
+++ b/kernel/drivers/video/hdmi.c
@@ -53,18 +53,14 @@
/**
* hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe
* @frame: HDMI AVI infoframe
- *
- * Returns 0 on success or a negative error code on failure.
*/
-int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
+void hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
{
memset(frame, 0, sizeof(*frame));
frame->type = HDMI_INFOFRAME_TYPE_AVI;
frame->version = 2;
frame->length = HDMI_AVI_INFOFRAME_SIZE;
-
- return 0;
}
EXPORT_SYMBOL(hdmi_avi_infoframe_init);
@@ -499,7 +495,7 @@
* value
*/
frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID;
- frame->length = 4;
+ frame->length = HDMI_VENDOR_INFOFRAME_SIZE;
return 0;
}
@@ -997,7 +993,7 @@
static void hdmi_infoframe_log_header(const char *level,
struct device *dev,
- struct hdmi_any_infoframe *frame)
+ const struct hdmi_any_infoframe *frame)
{
hdmi_log("HDMI infoframe: %s, version %u, length %u\n",
hdmi_infoframe_type_get_name(frame->type),
@@ -1191,18 +1187,12 @@
return "Invalid";
}
-/**
- * hdmi_avi_infoframe_log() - log info of HDMI AVI infoframe
- * @level: logging level
- * @dev: device
- * @frame: HDMI AVI infoframe
- */
static void hdmi_avi_infoframe_log(const char *level,
struct device *dev,
- struct hdmi_avi_infoframe *frame)
+ const struct hdmi_avi_infoframe *frame)
{
hdmi_infoframe_log_header(level, dev,
- (struct hdmi_any_infoframe *)frame);
+ (const struct hdmi_any_infoframe *)frame);
hdmi_log(" colorspace: %s\n",
hdmi_colorspace_get_name(frame->colorspace));
@@ -1268,20 +1258,14 @@
return "Reserved";
}
-/**
- * hdmi_spd_infoframe_log() - log info of HDMI SPD infoframe
- * @level: logging level
- * @dev: device
- * @frame: HDMI SPD infoframe
- */
static void hdmi_spd_infoframe_log(const char *level,
struct device *dev,
- struct hdmi_spd_infoframe *frame)
+ const struct hdmi_spd_infoframe *frame)
{
u8 buf[17];
hdmi_infoframe_log_header(level, dev,
- (struct hdmi_any_infoframe *)frame);
+ (const struct hdmi_any_infoframe *)frame);
memset(buf, 0, sizeof(buf));
@@ -1404,18 +1388,12 @@
return "Reserved";
}
-/**
- * hdmi_audio_infoframe_log() - log info of HDMI AUDIO infoframe
- * @level: logging level
- * @dev: device
- * @frame: HDMI AUDIO infoframe
- */
static void hdmi_audio_infoframe_log(const char *level,
struct device *dev,
- struct hdmi_audio_infoframe *frame)
+ const struct hdmi_audio_infoframe *frame)
{
hdmi_infoframe_log_header(level, dev,
- (struct hdmi_any_infoframe *)frame);
+ (const struct hdmi_any_infoframe *)frame);
if (frame->channels)
hdmi_log(" channels: %u\n", frame->channels - 1);
@@ -1437,12 +1415,6 @@
frame->downmix_inhibit ? "Yes" : "No");
}
-/**
- * hdmi_drm_infoframe_log() - log info of HDMI DRM infoframe
- * @level: logging level
- * @dev: device
- * @frame: HDMI DRM infoframe
- */
static void hdmi_drm_infoframe_log(const char *level,
struct device *dev,
const struct hdmi_drm_infoframe *frame)
@@ -1500,21 +1472,15 @@
return "Reserved";
}
-/**
- * hdmi_vendor_infoframe_log() - log info of HDMI VENDOR infoframe
- * @level: logging level
- * @dev: device
- * @frame: HDMI VENDOR infoframe
- */
static void
hdmi_vendor_any_infoframe_log(const char *level,
struct device *dev,
- union hdmi_vendor_any_infoframe *frame)
+ const union hdmi_vendor_any_infoframe *frame)
{
- struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
+ const struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
hdmi_infoframe_log_header(level, dev,
- (struct hdmi_any_infoframe *)frame);
+ (const struct hdmi_any_infoframe *)frame);
if (frame->any.oui != HDMI_IEEE_OUI) {
hdmi_log(" not a HDMI vendor infoframe\n");
@@ -1544,7 +1510,7 @@
*/
void hdmi_infoframe_log(const char *level,
struct device *dev,
- union hdmi_infoframe *frame)
+ const union hdmi_infoframe *frame)
{
switch (frame->any.type) {
case HDMI_INFOFRAME_TYPE_AVI:
@@ -1583,7 +1549,6 @@
const void *buffer, size_t size)
{
const u8 *ptr = buffer;
- int ret;
if (size < HDMI_INFOFRAME_SIZE(AVI))
return -EINVAL;
@@ -1596,9 +1561,7 @@
if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AVI)) != 0)
return -EINVAL;
- ret = hdmi_avi_infoframe_init(frame);
- if (ret)
- return ret;
+ hdmi_avi_infoframe_init(frame);
ptr += HDMI_INFOFRAME_HEADER_SIZE;
@@ -1805,20 +1768,21 @@
}
/**
- * hdmi_drm_infoframe_unpack() - unpack binary buffer to a HDMI DRM infoframe
+ * hdmi_drm_infoframe_unpack_only() - unpack binary buffer of CTA-861-G DRM
+ * infoframe DataBytes to a HDMI DRM
+ * infoframe
* @frame: HDMI DRM infoframe
* @buffer: source buffer
* @size: size of buffer
*
- * Unpacks the information contained in binary @buffer into a structured
- * @frame of the HDMI Dynamic Range and Mastering (DRM) information frame.
- * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
- * specification.
+ * Unpacks CTA-861-G DRM infoframe DataBytes contained in the binary @buffer
+ * into a structured @frame of the HDMI Dynamic Range and Mastering (DRM)
+ * infoframe.
*
* Returns 0 on success or a negative error code on failure.
*/
-static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
- const void *buffer, size_t size)
+int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame,
+ const void *buffer, size_t size)
{
const u8 *ptr = buffer;
const u8 *temp;
@@ -1827,22 +1791,12 @@
int ret;
int i;
- if (size < HDMI_INFOFRAME_SIZE(DRM))
- return -EINVAL;
-
- if (ptr[0] != HDMI_INFOFRAME_TYPE_DRM ||
- ptr[1] != 1 ||
- ptr[2] != HDMI_DRM_INFOFRAME_SIZE)
- return -EINVAL;
-
- if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(DRM)) != 0)
+ if (size < HDMI_DRM_INFOFRAME_SIZE)
return -EINVAL;
ret = hdmi_drm_infoframe_init(frame);
if (ret)
return ret;
-
- ptr += HDMI_INFOFRAME_HEADER_SIZE;
frame->eotf = ptr[0] & 0x7;
frame->metadata_type = ptr[1] & 0x7;
@@ -1851,7 +1805,7 @@
for (i = 0; i < 3; i++) {
x_lsb = *temp++;
x_msb = *temp++;
- frame->display_primaries[i].x = (x_msb << 8) | x_lsb;
+ frame->display_primaries[i].x = (x_msb << 8) | x_lsb;
y_lsb = *temp++;
y_msb = *temp++;
frame->display_primaries[i].y = (y_msb << 8) | y_lsb;
@@ -1867,6 +1821,42 @@
return 0;
}
+EXPORT_SYMBOL(hdmi_drm_infoframe_unpack_only);
+
+/**
+ * hdmi_drm_infoframe_unpack() - unpack binary buffer to a HDMI DRM infoframe
+ * @frame: HDMI DRM infoframe
+ * @buffer: source buffer
+ * @size: size of buffer
+ *
+ * Unpacks the CTA-861-G DRM infoframe contained in the binary @buffer into
+ * a structured @frame of the HDMI Dynamic Range and Mastering (DRM)
+ * infoframe. It also verifies the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
+ const void *buffer, size_t size)
+{
+ const u8 *ptr = buffer;
+ int ret;
+
+ if (size < HDMI_INFOFRAME_SIZE(DRM))
+ return -EINVAL;
+
+ if (ptr[0] != HDMI_INFOFRAME_TYPE_DRM ||
+ ptr[1] != 1 ||
+ ptr[2] != HDMI_DRM_INFOFRAME_SIZE)
+ return -EINVAL;
+
+ if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(DRM)) != 0)
+ return -EINVAL;
+
+ ret = hdmi_drm_infoframe_unpack_only(frame, ptr + HDMI_INFOFRAME_HEADER_SIZE,
+ size - HDMI_INFOFRAME_HEADER_SIZE);
+ return ret;
+}
/**
* hdmi_infoframe_unpack() - unpack binary buffer to a HDMI infoframe
--
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