[media] adv7842: log-status for Audio Video Info frames (AVI)
Clear any pending AVI checksum-errors. To be able to display last received AVI. Signed-off-by: Martin Bugge <marbugge@cisco.com> Cc: Mats Randgaard <matrandg@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -2191,7 +2191,8 @@ static void print_avi_infoframe(struct v4l2_subdev *sd)
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{
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int i;
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uint8_t buf[14];
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uint8_t avi_inf_len;
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u8 avi_len;
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u8 avi_ver;
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struct avi_info_frame avi;
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if (!(hdmi_read(sd, 0x05) & 0x80)) {
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@ -2204,18 +2205,20 @@ static void print_avi_infoframe(struct v4l2_subdev *sd)
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}
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if (io_read(sd, 0x88) & 0x10) {
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/* Note: the ADV7842 calculated incorrect checksums for InfoFrames
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with a length of 14 or 15. See the ADV7842 Register Settings
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Recommendations document for more details. */
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v4l2_info(sd, "AVI infoframe checksum error\n");
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return;
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v4l2_info(sd, "AVI infoframe checksum error has occurred earlier\n");
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io_write(sd, 0x8a, 0x10); /* clear AVI_INF_CKS_ERR_RAW */
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if (io_read(sd, 0x88) & 0x10) {
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v4l2_info(sd, "AVI infoframe checksum error still present\n");
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io_write(sd, 0x8a, 0x10); /* clear AVI_INF_CKS_ERR_RAW */
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}
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}
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avi_inf_len = infoframe_read(sd, 0xe2);
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avi_len = infoframe_read(sd, 0xe2);
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avi_ver = infoframe_read(sd, 0xe1);
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v4l2_info(sd, "AVI infoframe version %d (%d byte)\n",
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infoframe_read(sd, 0xe1), avi_inf_len);
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avi_ver, avi_len);
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if (infoframe_read(sd, 0xe1) != 0x02)
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if (avi_ver != 0x02)
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return;
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for (i = 0; i < 14; i++)
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