int edid_Reset(u16 baseAddr) { unsigned i = 0; LOG_TRACE(); edid_mBlocksNo = 1; edid_mCurrBlockNo = 0; edid_mCurrAddress = 0; edid_mBlockSum = 0; edid_mStatus = EDID_READING; for (i = 0; i < sizeof(edid_mBuffer); i++) { edid_mBuffer[i] = 0; } for (i = 0; i < sizeof(edid_mMonitorName); i++) { edid_mMonitorName[i] = 0; } edid_mBasicAudioSupport = FALSE; edid_mUnderscanSupport = FALSE; edid_mYcc422Support = FALSE; edid_mYcc444Support = FALSE; edid_mDtdIndex = 0; edid_mSadIndex = 0; edid_mSvdIndex = 0; hdmivsdb_Reset(&edid_mHdmivsdb); monitorRangeLimits_Reset(&edid_mMonitorRangeLimits); videoCapabilityDataBlock_Reset(&edid_mVideoCapabilityDataBlock); colorimetryDataBlock_Reset(&edid_mColorimetryDataBlock); speakerAllocationDataBlock_Reset(&edid_mSpeakerAllocationDataBlock); return TRUE; }
/** * Check Video parameters against allowed values and read EDID structure * to ensure compatibility with sink. * @param video video parameters */ static int api_CheckParamsVideo(videoParams_t * video) { u8 errorCode = TRUE; hdmivsdb_t vsdb; dtd_t dtd; unsigned i = 0; shortVideoDesc_t svd; videoCapabilityDataBlock_t capability; int valid = FALSE; colorimetryDataBlock_t colorimetry; LOG_TRACE(); colorimetryDataBlock_Reset(&colorimetry); shortVideoDesc_Reset(&svd); dtd_Fill(&dtd, 1, 60000); videoCapabilityDataBlock_Reset(&capability); if (videoParams_GetHdmi(video)) { /* HDMI mode */ if (api_EdidHdmivsdb(&vsdb) == TRUE) { if (videoParams_GetColorResolution(video) == 10 && !hdmivsdb_GetDeepColor30(&vsdb)) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_30BIT_DC); printk("Sink does NOT support 30bits/pixel deep colour mode"); errorCode = FALSE; } else if (videoParams_GetColorResolution(video) == 12 && !hdmivsdb_GetDeepColor36(&vsdb)) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_36BIT_DC); printk("Sink does NOT support 36bits/pixel deep colour mode"); errorCode = FALSE; } else if (videoParams_GetColorResolution(video) == 16 && !hdmivsdb_GetDeepColor48(&vsdb)) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_48BIT_DC); printk("Sink does NOT support 48bits/pixel deep colour mode"); errorCode = FALSE; } if (videoParams_GetEncodingOut(video) == YCC444 && !hdmivsdb_GetDeepColorY444(&vsdb)) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_YCC444_DC); printk("Sink does NOT support YCC444 in deep colour mode"); errorCode = FALSE; } if (videoParams_GetTmdsClock(video) > 16500) { /* * Sink must specify MaxTMDSClk when supports frequencies over 165MHz * GetMaxTMDSClk() is TMDS clock / 5MHz and GetTmdsClock() returns [0.01MHz] * so GetMaxTMDSClk() value must be multiplied by 500 in order to be compared */ if (videoParams_GetTmdsClock(video) > (hdmivsdb_GetMaxTmdsClk( &vsdb) * 500)) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_TMDS_CLOCK); LOG_WARNING2("Sink does not support TMDS clock", videoParams_GetTmdsClock(video)); LOG_WARNING2("Maximum TMDS clock supported is", hdmivsdb_GetMaxTmdsClk(&vsdb) * 500); errorCode = FALSE; } } } else { error_Set(ERR_SINK_DOES_NOT_SUPPORT_HDMI); printk("Sink does not support HDMI"); errorCode = FALSE; } /* video out encoding (YCC/RGB) */ if (videoParams_GetEncodingOut(video) == YCC444 && !api_EdidSupportsYcc444()) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_YCC444_ENCODING); printk("Sink does NOT support YCC444 encoding"); errorCode = FALSE; } else if (videoParams_GetEncodingOut(video) == YCC422 && !api_EdidSupportsYcc422()) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_YCC422_ENCODING); printk("Sink does NOT support YCC422 encoding"); errorCode = FALSE; } /* check extended colorimetry data and if supported by sink */ if (videoParams_GetColorimetry(video) == EXTENDED_COLORIMETRY) { if (api_EdidColorimetryDataBlock(&colorimetry) == TRUE) { if (!colorimetryDataBlock_SupportsXvYcc601(&colorimetry) && videoParams_GetExtColorimetry(video) == 0) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_XVYCC601_COLORIMETRY); printk("Sink does NOT support xvYcc601 extended colorimetry"); errorCode = FALSE; } else if (!colorimetryDataBlock_SupportsXvYcc709(&colorimetry) && videoParams_GetExtColorimetry(video) == 1) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_XVYCC709_COLORIMETRY); printk("Sink does NOT support xvYcc709 extended colorimetry"); errorCode = FALSE; } else { error_Set(ERR_EXTENDED_COLORIMETRY_PARAMS_INVALID); printk("Invalid extended colorimetry parameters"); errorCode = FALSE; } } else { error_Set(ERR_SINK_DOES_NOT_SUPPORT_EXTENDED_COLORIMETRY); errorCode = FALSE; } } } else { /* DVI mode */ if (videoParams_GetColorResolution(video) > 8) { error_Set(ERR_COLOR_DEPTH_NOT_SUPPORTED); printk("DVI - deep color not supported"); errorCode = FALSE; } if (videoParams_GetEncodingOut(video) != RGB) { error_Set(ERR_DVI_MODE_WITH_YCC_ENCODING); printk("DVI mode does not support video encoding other than RGB"); errorCode = FALSE; } if (videoParams_IsPixelRepetition(video)) { error_Set(ERR_DVI_MODE_WITH_PIXEL_REPETITION); printk("DVI mode does not support pixel repetition"); errorCode = FALSE; } if (videoParams_GetTmdsClock(video) > 16500) { printk("Sink must support DVI dual-link"); } /* check colorimetry data */ if ((videoParams_GetColorimetry(video) == EXTENDED_COLORIMETRY)) { error_Set(ERR_DVI_MODE_WITH_EXTENDED_COLORIMETRY); printk("DVI does not support extended colorimetry"); errorCode = FALSE; } } /* * DTD check * always checking VALID to minimise code execution (following probability) * this video code is to be supported by all dtv's */ valid = (dtd_GetCode(videoParams_GetDtd(video)) == 1) ? TRUE : FALSE; if (!valid) { for (i = 0; i < api_EdidDtdCount(); i++) { api_EdidDtd(i, &dtd); if (dtd_GetCode(videoParams_GetDtd(video)) != (u8) (-1)) { if (dtd_GetCode(videoParams_GetDtd(video)) == dtd_GetCode(&dtd)) { valid = TRUE; break; } } else if (dtd_IsEqual(videoParams_GetDtd(video), &dtd)) { valid = TRUE; break; } } } if (!valid) { if (dtd_GetCode(videoParams_GetDtd(video)) != (u8) (-1)) { for (i = 0; i < api_EdidSvdCount(); i++) { api_EdidSvd(i, &svd); if ((unsigned) (dtd_GetCode(videoParams_GetDtd(video))) == shortVideoDesc_GetCode(&svd)) { valid = TRUE; break; } } } } if (!valid) { error_Set(ERR_SINK_DOES_NOT_SUPPORT_SELECTED_DTD); printk("Sink does NOT indicate support for selected DTD"); errorCode = FALSE; } /* check quantization range */ if (api_EdidVideoCapabilityDataBlock(&capability) == TRUE) { if (!videoCapabilityDataBlock_GetQuantizationRangeSelectable( &capability) && videoParams_GetRgbQuantizationRange(video) > 1) { printk("Sink does NOT indicate support for selected quantization range"); } } return errorCode; }