Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1524 insertions, 0 deletions

diff --git a/drivers/media/pci/saa7164/saa7164-api.c b/drivers/media/pci/saa7164/saa7164-api.c
new file mode 100644
index 000000000..e318ccf81
--- /dev/null
+++ b/drivers/media/pci/saa7164/saa7164-api.c
@@ -0,0 +1,1524 @@
+/*
+ *  Driver for the NXP SAA7164 PCIe bridge
+ *
+ *  Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ */
+
+#include <linux/wait.h>
+#include <linux/slab.h>
+
+#include "saa7164.h"
+
+int saa7164_api_get_load_info(struct saa7164_dev *dev, struct tmFwInfoStruct *i)
+{
+	int ret;
+
+	if (!(saa_debug & DBGLVL_CPU))
+		return 0;
+
+	dprintk(DBGLVL_API, "%s()\n", __func__);
+
+	i->deviceinst = 0;
+	i->devicespec = 0;
+	i->mode = 0;
+	i->status = 0;
+
+	ret = saa7164_cmd_send(dev, 0, GET_CUR,
+		GET_FW_STATUS_CONTROL, sizeof(struct tmFwInfoStruct), i);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	printk(KERN_INFO "saa7164[%d]-CPU: %d percent", dev->nr, i->CPULoad);
+
+	return ret;
+}
+
+int saa7164_api_collect_debug(struct saa7164_dev *dev)
+{
+	struct tmComResDebugGetData d;
+	u8 more = 255;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s()\n", __func__);
+
+	while (more--) {
+
+		memset(&d, 0, sizeof(d));
+
+		ret = saa7164_cmd_send(dev, 0, GET_CUR,
+			GET_DEBUG_DATA_CONTROL, sizeof(d), &d);
+		if (ret != SAA_OK)
+			printk(KERN_ERR "%s() error, ret = 0x%x\n",
+				__func__, ret);
+
+		if (d.dwResult != SAA_OK)
+			break;
+
+		printk(KERN_INFO "saa7164[%d]-FWMSG: %s", dev->nr,
+			d.ucDebugData);
+	}
+
+	return 0;
+}
+
+int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level)
+{
+	struct tmComResDebugSetLevel lvl;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(level=%d)\n", __func__, level);
+
+	/* Retrieve current state */
+	ret = saa7164_cmd_send(dev, 0, GET_CUR,
+		SET_DEBUG_LEVEL_CONTROL, sizeof(lvl), &lvl);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_API, "%s() Was %d\n", __func__, lvl.dwDebugLevel);
+
+	lvl.dwDebugLevel = level;
+
+	/* set new state */
+	ret = saa7164_cmd_send(dev, 0, SET_CUR,
+		SET_DEBUG_LEVEL_CONTROL, sizeof(lvl), &lvl);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_set_vbi_format(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResProbeCommit fmt, rsp;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(nr=%d, unitid=0x%x)\n", __func__,
+		port->nr, port->hwcfg.unitid);
+
+	fmt.bmHint = 0;
+	fmt.bFormatIndex = 1;
+	fmt.bFrameIndex = 1;
+
+	/* Probe, see if it can support this format */
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid,
+		SET_CUR, SAA_PROBE_CONTROL, sizeof(fmt), &fmt);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() set error, ret = 0x%x\n", __func__, ret);
+
+	/* See of the format change was successful */
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid,
+		GET_CUR, SAA_PROBE_CONTROL, sizeof(rsp), &rsp);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() get error, ret = 0x%x\n", __func__, ret);
+	} else {
+		/* Compare requested vs received, should be same */
+		if (memcmp(&fmt, &rsp, sizeof(rsp)) == 0) {
+			dprintk(DBGLVL_API, "SET/PROBE Verified\n");
+
+			/* Ask the device to select the negotiated format */
+			ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid,
+				SET_CUR, SAA_COMMIT_CONTROL, sizeof(fmt), &fmt);
+			if (ret != SAA_OK)
+				printk(KERN_ERR "%s() commit error, ret = 0x%x\n",
+					__func__, ret);
+
+			ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid,
+				GET_CUR, SAA_COMMIT_CONTROL, sizeof(rsp), &rsp);
+			if (ret != SAA_OK)
+				printk(KERN_ERR "%s() GET commit error, ret = 0x%x\n",
+					__func__, ret);
+
+			if (memcmp(&fmt, &rsp, sizeof(rsp)) != 0) {
+				printk(KERN_ERR "%s() memcmp error, ret = 0x%x\n",
+					__func__, ret);
+			} else
+				dprintk(DBGLVL_API, "SET/COMMIT Verified\n");
+
+			dprintk(DBGLVL_API, "rsp.bmHint = 0x%x\n", rsp.bmHint);
+			dprintk(DBGLVL_API, "rsp.bFormatIndex = 0x%x\n",
+				rsp.bFormatIndex);
+			dprintk(DBGLVL_API, "rsp.bFrameIndex = 0x%x\n",
+				rsp.bFrameIndex);
+		} else
+			printk(KERN_ERR "%s() compare failed\n", __func__);
+	}
+
+	if (ret == SAA_OK)
+		dprintk(DBGLVL_API, "%s(nr=%d) Success\n", __func__, port->nr);
+
+	return ret;
+}
+
+static int saa7164_api_set_gop_size(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResEncVideoGopStructure gs;
+	int ret;
+
+	dprintk(DBGLVL_ENC, "%s()\n", __func__);
+
+	gs.ucRefFrameDist = port->encoder_params.refdist;
+	gs.ucGOPSize = port->encoder_params.gop_size;
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_VIDEO_GOP_STRUCTURE_CONTROL,
+		sizeof(gs), &gs);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_set_encoder(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResEncVideoBitRate vb;
+	struct tmComResEncAudioBitRate ab;
+	int ret;
+
+	dprintk(DBGLVL_ENC, "%s() unitid=0x%x\n", __func__,
+		port->hwcfg.sourceid);
+
+	if (port->encoder_params.stream_type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS)
+		port->encoder_profile = EU_PROFILE_PS_DVD;
+	else
+		port->encoder_profile = EU_PROFILE_TS_HQ;
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_PROFILE_CONTROL, sizeof(u8), &port->encoder_profile);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Resolution */
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_PROFILE_CONTROL, sizeof(u8), &port->encoder_profile);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Establish video bitrates */
+	if (port->encoder_params.bitrate_mode ==
+		V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
+		vb.ucVideoBitRateMode = EU_VIDEO_BIT_RATE_MODE_CONSTANT;
+	else
+		vb.ucVideoBitRateMode = EU_VIDEO_BIT_RATE_MODE_VARIABLE_PEAK;
+	vb.dwVideoBitRate = port->encoder_params.bitrate;
+	vb.dwVideoBitRatePeak = port->encoder_params.bitrate_peak;
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_VIDEO_BIT_RATE_CONTROL,
+		sizeof(struct tmComResEncVideoBitRate),
+		&vb);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Establish audio bitrates */
+	ab.ucAudioBitRateMode = 0;
+	ab.dwAudioBitRate = 384000;
+	ab.dwAudioBitRatePeak = ab.dwAudioBitRate;
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_AUDIO_BIT_RATE_CONTROL,
+		sizeof(struct tmComResEncAudioBitRate),
+		&ab);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
+			ret);
+
+	saa7164_api_set_aspect_ratio(port);
+	saa7164_api_set_gop_size(port);
+
+	return ret;
+}
+
+int saa7164_api_get_encoder(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResEncVideoBitRate v;
+	struct tmComResEncAudioBitRate a;
+	struct tmComResEncVideoInputAspectRatio ar;
+	int ret;
+
+	dprintk(DBGLVL_ENC, "%s() unitid=0x%x\n", __func__,
+		port->hwcfg.sourceid);
+
+	port->encoder_profile = 0;
+	port->video_format = 0;
+	port->video_resolution = 0;
+	port->audio_format = 0;
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_PROFILE_CONTROL, sizeof(u8), &port->encoder_profile);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_VIDEO_RESOLUTION_CONTROL, sizeof(u8),
+		&port->video_resolution);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_VIDEO_FORMAT_CONTROL, sizeof(u8), &port->video_format);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_VIDEO_BIT_RATE_CONTROL, sizeof(v), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_AUDIO_FORMAT_CONTROL, sizeof(u8), &port->audio_format);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_AUDIO_BIT_RATE_CONTROL, sizeof(a), &a);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Aspect Ratio */
+	ar.width = 0;
+	ar.height = 0;
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, GET_CUR,
+		EU_VIDEO_INPUT_ASPECT_CONTROL,
+		sizeof(struct tmComResEncVideoInputAspectRatio), &ar);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_ENC, "encoder_profile = %d\n", port->encoder_profile);
+	dprintk(DBGLVL_ENC, "video_format    = %d\n", port->video_format);
+	dprintk(DBGLVL_ENC, "audio_format    = %d\n", port->audio_format);
+	dprintk(DBGLVL_ENC, "video_resolution= %d\n", port->video_resolution);
+	dprintk(DBGLVL_ENC, "v.ucVideoBitRateMode = %d\n",
+		v.ucVideoBitRateMode);
+	dprintk(DBGLVL_ENC, "v.dwVideoBitRate     = %d\n",
+		v.dwVideoBitRate);
+	dprintk(DBGLVL_ENC, "v.dwVideoBitRatePeak = %d\n",
+		v.dwVideoBitRatePeak);
+	dprintk(DBGLVL_ENC, "a.ucVideoBitRateMode = %d\n",
+		a.ucAudioBitRateMode);
+	dprintk(DBGLVL_ENC, "a.dwVideoBitRate     = %d\n",
+		a.dwAudioBitRate);
+	dprintk(DBGLVL_ENC, "a.dwVideoBitRatePeak = %d\n",
+		a.dwAudioBitRatePeak);
+	dprintk(DBGLVL_ENC, "aspect.width / height = %d:%d\n",
+		ar.width, ar.height);
+
+	return ret;
+}
+
+int saa7164_api_set_aspect_ratio(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResEncVideoInputAspectRatio ar;
+	int ret;
+
+	dprintk(DBGLVL_ENC, "%s(%d)\n", __func__,
+		port->encoder_params.ctl_aspect);
+
+	switch (port->encoder_params.ctl_aspect) {
+	case V4L2_MPEG_VIDEO_ASPECT_1x1:
+		ar.width = 1;
+		ar.height = 1;
+		break;
+	case V4L2_MPEG_VIDEO_ASPECT_4x3:
+		ar.width = 4;
+		ar.height = 3;
+		break;
+	case V4L2_MPEG_VIDEO_ASPECT_16x9:
+		ar.width = 16;
+		ar.height = 9;
+		break;
+	case V4L2_MPEG_VIDEO_ASPECT_221x100:
+		ar.width = 221;
+		ar.height = 100;
+		break;
+	default:
+		BUG();
+	}
+
+	dprintk(DBGLVL_ENC, "%s(%d) now %d:%d\n", __func__,
+		port->encoder_params.ctl_aspect,
+		ar.width, ar.height);
+
+	/* Aspect Ratio */
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
+		EU_VIDEO_INPUT_ASPECT_CONTROL,
+		sizeof(struct tmComResEncVideoInputAspectRatio), &ar);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl)
+{
+	struct saa7164_dev *dev = port->dev;
+	int ret;
+	u16 val;
+
+	if (ctl == PU_BRIGHTNESS_CONTROL)
+		val = port->ctl_brightness;
+	else
+	if (ctl == PU_CONTRAST_CONTROL)
+		val = port->ctl_contrast;
+	else
+	if (ctl == PU_HUE_CONTROL)
+		val = port->ctl_hue;
+	else
+	if (ctl == PU_SATURATION_CONTROL)
+		val = port->ctl_saturation;
+	else
+	if (ctl == PU_SHARPNESS_CONTROL)
+		val = port->ctl_sharpness;
+	else
+		return -EINVAL;
+
+	dprintk(DBGLVL_ENC, "%s() unitid=0x%x ctl=%d, val=%d\n",
+		__func__, port->encunit.vsourceid, ctl, val);
+
+	ret = saa7164_cmd_send(port->dev, port->encunit.vsourceid, SET_CUR,
+		ctl, sizeof(u16), &val);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl)
+{
+	struct saa7164_dev *dev = port->dev;
+	int ret;
+	u16 val;
+
+	ret = saa7164_cmd_send(port->dev, port->encunit.vsourceid, GET_CUR,
+		ctl, sizeof(u16), &val);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+		return ret;
+	}
+
+	dprintk(DBGLVL_ENC, "%s() ctl=%d, val=%d\n",
+		__func__, ctl, val);
+
+	if (ctl == PU_BRIGHTNESS_CONTROL)
+		port->ctl_brightness = val;
+	else
+	if (ctl == PU_CONTRAST_CONTROL)
+		port->ctl_contrast = val;
+	else
+	if (ctl == PU_HUE_CONTROL)
+		port->ctl_hue = val;
+	else
+	if (ctl == PU_SATURATION_CONTROL)
+		port->ctl_saturation = val;
+	else
+	if (ctl == PU_SHARPNESS_CONTROL)
+		port->ctl_sharpness = val;
+
+	return ret;
+}
+
+int saa7164_api_set_videomux(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	u8 inputs[] = { 1, 2, 2, 2, 5, 5, 5 };
+	int ret;
+
+	dprintk(DBGLVL_ENC, "%s() v_mux=%d a_mux=%d\n",
+		__func__, port->mux_input, inputs[port->mux_input - 1]);
+
+	/* Audio Mute */
+	ret = saa7164_api_audio_mute(port, 1);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Video Mux */
+	ret = saa7164_cmd_send(port->dev, port->vidproc.sourceid, SET_CUR,
+		SU_INPUT_SELECT_CONTROL, sizeof(u8), &port->mux_input);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Audio Mux */
+	ret = saa7164_cmd_send(port->dev, port->audfeat.sourceid, SET_CUR,
+		SU_INPUT_SELECT_CONTROL, sizeof(u8),
+		&inputs[port->mux_input - 1]);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Audio UnMute */
+	ret = saa7164_api_audio_mute(port, 0);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_audio_mute(struct saa7164_port *port, int mute)
+{
+	struct saa7164_dev *dev = port->dev;
+	u8 v = mute;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(%d)\n", __func__, mute);
+
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, SET_CUR,
+		MUTE_CONTROL, sizeof(u8), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+/* 0 = silence, 0xff = full */
+int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level)
+{
+	struct saa7164_dev *dev = port->dev;
+	s16 v, min, max;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(%d)\n", __func__, level);
+
+	/* Obtain the min/max ranges */
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, GET_MIN,
+		VOLUME_CONTROL, sizeof(u16), &min);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, GET_MAX,
+		VOLUME_CONTROL, sizeof(u16), &max);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, GET_CUR,
+		(0x01 << 8) | VOLUME_CONTROL, sizeof(u16), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_API, "%s(%d) min=%d max=%d cur=%d\n", __func__,
+		level, min, max, v);
+
+	v = level;
+	if (v < min)
+		v = min;
+	if (v > max)
+		v = max;
+
+	/* Left */
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, SET_CUR,
+		(0x01 << 8) | VOLUME_CONTROL, sizeof(s16), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Right */
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, SET_CUR,
+		(0x02 << 8) | VOLUME_CONTROL, sizeof(s16), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, GET_CUR,
+		(0x01 << 8) | VOLUME_CONTROL, sizeof(u16), &v);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_API, "%s(%d) min=%d max=%d cur=%d\n", __func__,
+		level, min, max, v);
+
+	return ret;
+}
+
+int saa7164_api_set_audio_std(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResAudioDefaults lvl;
+	struct tmComResTunerStandard tvaudio;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s()\n", __func__);
+
+	/* Establish default levels */
+	lvl.ucDecoderLevel = TMHW_LEV_ADJ_DECLEV_DEFAULT;
+	lvl.ucDecoderFM_Level = TMHW_LEV_ADJ_DECLEV_DEFAULT;
+	lvl.ucMonoLevel = TMHW_LEV_ADJ_MONOLEV_DEFAULT;
+	lvl.ucNICAM_Level = TMHW_LEV_ADJ_NICLEV_DEFAULT;
+	lvl.ucSAP_Level = TMHW_LEV_ADJ_SAPLEV_DEFAULT;
+	lvl.ucADC_Level = TMHW_LEV_ADJ_ADCLEV_DEFAULT;
+	ret = saa7164_cmd_send(port->dev, port->audfeat.unitid, SET_CUR,
+		AUDIO_DEFAULT_CONTROL, sizeof(struct tmComResAudioDefaults),
+		&lvl);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	/* Manually select the appropriate TV audio standard */
+	if (port->encodernorm.id & V4L2_STD_NTSC) {
+		tvaudio.std = TU_STANDARD_NTSC_M;
+		tvaudio.country = 1;
+	} else {
+		tvaudio.std = TU_STANDARD_PAL_I;
+		tvaudio.country = 44;
+	}
+
+	ret = saa7164_cmd_send(port->dev, port->tunerunit.unitid, SET_CUR,
+		TU_STANDARD_CONTROL, sizeof(tvaudio), &tvaudio);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() TU_STANDARD_CONTROL error, ret = 0x%x\n",
+			__func__, ret);
+	return ret;
+}
+
+int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct tmComResTunerStandardAuto p;
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(%d)\n", __func__, autodetect);
+
+	/* Disable TV Audio autodetect if not already set (buggy) */
+	if (autodetect)
+		p.mode = TU_STANDARD_AUTO;
+	else
+		p.mode = TU_STANDARD_MANUAL;
+	ret = saa7164_cmd_send(port->dev, port->tunerunit.unitid, SET_CUR,
+		TU_STANDARD_AUTO_CONTROL, sizeof(p), &p);
+	if (ret != SAA_OK)
+		printk(KERN_ERR
+			"%s() TU_STANDARD_AUTO_CONTROL error, ret = 0x%x\n",
+			__func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_get_videomux(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	int ret;
+
+	ret = saa7164_cmd_send(port->dev, port->vidproc.sourceid, GET_CUR,
+		SU_INPUT_SELECT_CONTROL, sizeof(u8), &port->mux_input);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_ENC, "%s() v_mux=%d\n",
+		__func__, port->mux_input);
+
+	return ret;
+}
+
+static int saa7164_api_set_dif(struct saa7164_port *port, u8 reg, u8 val)
+{
+	struct saa7164_dev *dev = port->dev;
+
+	u16 len = 0;
+	u8 buf[256];
+	int ret;
+	u8 mas;
+
+	dprintk(DBGLVL_API, "%s(nr=%d type=%d val=%x)\n", __func__,
+		port->nr, port->type, val);
+
+	if (port->nr == 0)
+		mas = 0xd0;
+	else
+		mas = 0xe0;
+
+	memset(buf, 0, sizeof(buf));
+
+	buf[0x00] = 0x04;
+	buf[0x01] = 0x00;
+	buf[0x02] = 0x00;
+	buf[0x03] = 0x00;
+
+	buf[0x04] = 0x04;
+	buf[0x05] = 0x00;
+	buf[0x06] = 0x00;
+	buf[0x07] = 0x00;
+
+	buf[0x08] = reg;
+	buf[0x09] = 0x26;
+	buf[0x0a] = mas;
+	buf[0x0b] = 0xb0;
+
+	buf[0x0c] = val;
+	buf[0x0d] = 0x00;
+	buf[0x0e] = 0x00;
+	buf[0x0f] = 0x00;
+
+	ret = saa7164_cmd_send(dev, port->ifunit.unitid, GET_LEN,
+		EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret);
+		return -EIO;
+	}
+
+	ret = saa7164_cmd_send(dev, port->ifunit.unitid, SET_CUR,
+		EXU_REGISTER_ACCESS_CONTROL, len, &buf);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret);
+#if 0
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, buf, 16,
+		       false);
+#endif
+	return ret == SAA_OK ? 0 : -EIO;
+}
+
+/* Disable the IF block AGC controls */
+int saa7164_api_configure_dif(struct saa7164_port *port, u32 std)
+{
+	struct saa7164_dev *dev = port->dev;
+	u8 agc_disable;
+
+	dprintk(DBGLVL_API, "%s(nr=%d, 0x%x)\n", __func__, port->nr, std);
+
+	if (std & V4L2_STD_NTSC) {
+		dprintk(DBGLVL_API, " NTSC\n");
+		saa7164_api_set_dif(port, 0x00, 0x01); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_I) {
+		dprintk(DBGLVL_API, " PAL-I\n");
+		saa7164_api_set_dif(port, 0x00, 0x08); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_M) {
+		dprintk(DBGLVL_API, " PAL-M\n");
+		saa7164_api_set_dif(port, 0x00, 0x01); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_N) {
+		dprintk(DBGLVL_API, " PAL-N\n");
+		saa7164_api_set_dif(port, 0x00, 0x01); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_Nc) {
+		dprintk(DBGLVL_API, " PAL-Nc\n");
+		saa7164_api_set_dif(port, 0x00, 0x01); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_B) {
+		dprintk(DBGLVL_API, " PAL-B\n");
+		saa7164_api_set_dif(port, 0x00, 0x02); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_PAL_DK) {
+		dprintk(DBGLVL_API, " PAL-DK\n");
+		saa7164_api_set_dif(port, 0x00, 0x10); /* Video Standard */
+		agc_disable = 0;
+	} else if (std & V4L2_STD_SECAM_L) {
+		dprintk(DBGLVL_API, " SECAM-L\n");
+		saa7164_api_set_dif(port, 0x00, 0x20); /* Video Standard */
+		agc_disable = 0;
+	} else {
+		/* Unknown standard, assume DTV */
+		dprintk(DBGLVL_API, " Unknown (assuming DTV)\n");
+		/* Undefinded Video Standard */
+		saa7164_api_set_dif(port, 0x00, 0x80);
+		agc_disable = 1;
+	}
+
+	saa7164_api_set_dif(port, 0x48, 0xa0); /* AGC Functions 1 */
+	saa7164_api_set_dif(port, 0xc0, agc_disable); /* AGC Output Disable */
+	saa7164_api_set_dif(port, 0x7c, 0x04); /* CVBS EQ */
+	saa7164_api_set_dif(port, 0x04, 0x01); /* Active */
+	msleep(100);
+	saa7164_api_set_dif(port, 0x04, 0x00); /* Active (again) */
+	msleep(100);
+
+	return 0;
+}
+
+/* Ensure the dif is in the correct state for the operating mode
+ * (analog / dtv). We only configure the diff through the analog encoder
+ * so when we're in digital mode we need to find the appropriate encoder
+ * and use it to configure the DIF.
+ */
+int saa7164_api_initialize_dif(struct saa7164_port *port)
+{
+	struct saa7164_dev *dev = port->dev;
+	struct saa7164_port *p = NULL;
+	int ret = -EINVAL;
+	u32 std = 0;
+
+	dprintk(DBGLVL_API, "%s(nr=%d type=%d)\n", __func__,
+		port->nr, port->type);
+
+	if (port->type == SAA7164_MPEG_ENCODER) {
+		/* Pick any analog standard to init the diff.
+		 * we'll come back during encoder_init'
+		 * and set the correct standard if requried.
+		 */
+		std = V4L2_STD_NTSC;
+	} else
+	if (port->type == SAA7164_MPEG_DVB) {
+		if (port->nr == SAA7164_PORT_TS1)
+			p = &dev->ports[SAA7164_PORT_ENC1];
+		else
+			p = &dev->ports[SAA7164_PORT_ENC2];
+	} else
+	if (port->type == SAA7164_MPEG_VBI) {
+		std = V4L2_STD_NTSC;
+		if (port->nr == SAA7164_PORT_VBI1)
+			p = &dev->ports[SAA7164_PORT_ENC1];
+		else
+			p = &dev->ports[SAA7164_PORT_ENC2];
+	} else
+		BUG();
+
+	if (p)
+		ret = saa7164_api_configure_dif(p, std);
+
+	return ret;
+}
+
+int saa7164_api_transition_port(struct saa7164_port *port, u8 mode)
+{
+	struct saa7164_dev *dev = port->dev;
+
+	int ret;
+
+	dprintk(DBGLVL_API, "%s(nr=%d unitid=0x%x,%d)\n",
+		__func__, port->nr, port->hwcfg.unitid, mode);
+
+	ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid, SET_CUR,
+		SAA_STATE_CONTROL, sizeof(mode), &mode);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s(portnr %d unitid 0x%x) error, ret = 0x%x\n",
+			__func__, port->nr, port->hwcfg.unitid, ret);
+
+	return ret;
+}
+
+int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version)
+{
+	int ret;
+
+	ret = saa7164_cmd_send(dev, 0, GET_CUR,
+		GET_FW_VERSION_CONTROL, sizeof(u32), version);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen)
+{
+	u8 reg[] = { 0x0f, 0x00 };
+
+	if (buflen < 128)
+		return -ENOMEM;
+
+	/* Assumption: Hauppauge eeprom is at 0xa0 on on bus 0 */
+	/* TODO: Pull the details from the boards struct */
+	return saa7164_api_i2c_read(&dev->i2c_bus[0], 0xa0 >> 1, sizeof(reg),
+		&reg[0], 128, buf);
+}
+
+static int saa7164_api_configure_port_vbi(struct saa7164_dev *dev,
+					  struct saa7164_port *port)
+{
+	struct tmComResVBIFormatDescrHeader *fmt = &port->vbi_fmt_ntsc;
+
+	dprintk(DBGLVL_API, "    bFormatIndex  = 0x%x\n", fmt->bFormatIndex);
+	dprintk(DBGLVL_API, "    VideoStandard = 0x%x\n", fmt->VideoStandard);
+	dprintk(DBGLVL_API, "    StartLine     = %d\n", fmt->StartLine);
+	dprintk(DBGLVL_API, "    EndLine       = %d\n", fmt->EndLine);
+	dprintk(DBGLVL_API, "    FieldRate     = %d\n", fmt->FieldRate);
+	dprintk(DBGLVL_API, "    bNumLines     = %d\n", fmt->bNumLines);
+
+	/* Cache the hardware configuration in the port */
+
+	port->bufcounter = port->hwcfg.BARLocation;
+	port->pitch = port->hwcfg.BARLocation + (2 * sizeof(u32));
+	port->bufsize = port->hwcfg.BARLocation + (3 * sizeof(u32));
+	port->bufoffset = port->hwcfg.BARLocation + (4 * sizeof(u32));
+	port->bufptr32l = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount) + sizeof(u32);
+	port->bufptr32h = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	port->bufptr64 = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	dprintk(DBGLVL_API, "   = port->hwcfg.BARLocation = 0x%x\n",
+		port->hwcfg.BARLocation);
+
+	dprintk(DBGLVL_API, "   = VS_FORMAT_VBI (becomes dev->en[%d])\n",
+		port->nr);
+
+	return 0;
+}
+
+static int
+saa7164_api_configure_port_mpeg2ts(struct saa7164_dev *dev,
+				   struct saa7164_port *port,
+				   struct tmComResTSFormatDescrHeader *tsfmt)
+{
+	dprintk(DBGLVL_API, "    bFormatIndex = 0x%x\n", tsfmt->bFormatIndex);
+	dprintk(DBGLVL_API, "    bDataOffset  = 0x%x\n", tsfmt->bDataOffset);
+	dprintk(DBGLVL_API, "    bPacketLength= 0x%x\n", tsfmt->bPacketLength);
+	dprintk(DBGLVL_API, "    bStrideLength= 0x%x\n", tsfmt->bStrideLength);
+	dprintk(DBGLVL_API, "    bguid        = (....)\n");
+
+	/* Cache the hardware configuration in the port */
+
+	port->bufcounter = port->hwcfg.BARLocation;
+	port->pitch = port->hwcfg.BARLocation + (2 * sizeof(u32));
+	port->bufsize = port->hwcfg.BARLocation + (3 * sizeof(u32));
+	port->bufoffset = port->hwcfg.BARLocation + (4 * sizeof(u32));
+	port->bufptr32l = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount) + sizeof(u32);
+	port->bufptr32h = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	port->bufptr64 = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	dprintk(DBGLVL_API, "   = port->hwcfg.BARLocation = 0x%x\n",
+		port->hwcfg.BARLocation);
+
+	dprintk(DBGLVL_API, "   = VS_FORMAT_MPEGTS (becomes dev->ts[%d])\n",
+		port->nr);
+
+	return 0;
+}
+
+static int
+saa7164_api_configure_port_mpeg2ps(struct saa7164_dev *dev,
+				   struct saa7164_port *port,
+				   struct tmComResPSFormatDescrHeader *fmt)
+{
+	dprintk(DBGLVL_API, "    bFormatIndex = 0x%x\n", fmt->bFormatIndex);
+	dprintk(DBGLVL_API, "    wPacketLength= 0x%x\n", fmt->wPacketLength);
+	dprintk(DBGLVL_API, "    wPackLength=   0x%x\n", fmt->wPackLength);
+	dprintk(DBGLVL_API, "    bPackDataType= 0x%x\n", fmt->bPackDataType);
+
+	/* Cache the hardware configuration in the port */
+	/* TODO: CHECK THIS in the port config */
+	port->bufcounter = port->hwcfg.BARLocation;
+	port->pitch = port->hwcfg.BARLocation + (2 * sizeof(u32));
+	port->bufsize = port->hwcfg.BARLocation + (3 * sizeof(u32));
+	port->bufoffset = port->hwcfg.BARLocation + (4 * sizeof(u32));
+	port->bufptr32l = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount) + sizeof(u32);
+	port->bufptr32h = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	port->bufptr64 = port->hwcfg.BARLocation +
+		(4 * sizeof(u32)) +
+		(sizeof(u32) * port->hwcfg.buffercount);
+	dprintk(DBGLVL_API, "   = port->hwcfg.BARLocation = 0x%x\n",
+		port->hwcfg.BARLocation);
+
+	dprintk(DBGLVL_API, "   = VS_FORMAT_MPEGPS (becomes dev->enc[%d])\n",
+		port->nr);
+
+	return 0;
+}
+
+static int saa7164_api_dump_subdevs(struct saa7164_dev *dev, u8 *buf, int len)
+{
+	struct saa7164_port *tsport = NULL;
+	struct saa7164_port *encport = NULL;
+	struct saa7164_port *vbiport = NULL;
+	u32 idx, next_offset;
+	int i;
+	struct tmComResDescrHeader *hdr, *t;
+	struct tmComResExtDevDescrHeader *exthdr;
+	struct tmComResPathDescrHeader *pathhdr;
+	struct tmComResAntTermDescrHeader *anttermhdr;
+	struct tmComResTunerDescrHeader *tunerunithdr;
+	struct tmComResDMATermDescrHeader *vcoutputtermhdr;
+	struct tmComResTSFormatDescrHeader *tsfmt;
+	struct tmComResPSFormatDescrHeader *psfmt;
+	struct tmComResSelDescrHeader *psel;
+	struct tmComResProcDescrHeader *pdh;
+	struct tmComResAFeatureDescrHeader *afd;
+	struct tmComResEncoderDescrHeader *edh;
+	struct tmComResVBIFormatDescrHeader *vbifmt;
+	u32 currpath = 0;
+
+	dprintk(DBGLVL_API,
+		"%s(?,?,%d) sizeof(struct tmComResDescrHeader) = %d bytes\n",
+		__func__, len, (u32)sizeof(struct tmComResDescrHeader));
+
+	for (idx = 0; idx < (len - sizeof(struct tmComResDescrHeader));) {
+
+		hdr = (struct tmComResDescrHeader *)(buf + idx);
+
+		if (hdr->type != CS_INTERFACE)
+			return SAA_ERR_NOT_SUPPORTED;
+
+		dprintk(DBGLVL_API, "@ 0x%x =\n", idx);
+		switch (hdr->subtype) {
+		case GENERAL_REQUEST:
+			dprintk(DBGLVL_API, " GENERAL_REQUEST\n");
+			break;
+		case VC_TUNER_PATH:
+			dprintk(DBGLVL_API, " VC_TUNER_PATH\n");
+			pathhdr = (struct tmComResPathDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, "  pathid = 0x%x\n",
+				pathhdr->pathid);
+			currpath = pathhdr->pathid;
+			break;
+		case VC_INPUT_TERMINAL:
+			dprintk(DBGLVL_API, " VC_INPUT_TERMINAL\n");
+			anttermhdr =
+				(struct tmComResAntTermDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, "  terminalid   = 0x%x\n",
+				anttermhdr->terminalid);
+			dprintk(DBGLVL_API, "  terminaltype = 0x%x\n",
+				anttermhdr->terminaltype);
+			switch (anttermhdr->terminaltype) {
+			case ITT_ANTENNA:
+				dprintk(DBGLVL_API, "   = ITT_ANTENNA\n");
+				break;
+			case LINE_CONNECTOR:
+				dprintk(DBGLVL_API, "   = LINE_CONNECTOR\n");
+				break;
+			case SPDIF_CONNECTOR:
+				dprintk(DBGLVL_API, "   = SPDIF_CONNECTOR\n");
+				break;
+			case COMPOSITE_CONNECTOR:
+				dprintk(DBGLVL_API,
+					"   = COMPOSITE_CONNECTOR\n");
+				break;
+			case SVIDEO_CONNECTOR:
+				dprintk(DBGLVL_API, "   = SVIDEO_CONNECTOR\n");
+				break;
+			case COMPONENT_CONNECTOR:
+				dprintk(DBGLVL_API,
+					"   = COMPONENT_CONNECTOR\n");
+				break;
+			case STANDARD_DMA:
+				dprintk(DBGLVL_API, "   = STANDARD_DMA\n");
+				break;
+			default:
+				dprintk(DBGLVL_API, "   = undefined (0x%x)\n",
+					anttermhdr->terminaltype);
+			}
+			dprintk(DBGLVL_API, "  assocterminal= 0x%x\n",
+				anttermhdr->assocterminal);
+			dprintk(DBGLVL_API, "  iterminal    = 0x%x\n",
+				anttermhdr->iterminal);
+			dprintk(DBGLVL_API, "  controlsize  = 0x%x\n",
+				anttermhdr->controlsize);
+			break;
+		case VC_OUTPUT_TERMINAL:
+			dprintk(DBGLVL_API, " VC_OUTPUT_TERMINAL\n");
+			vcoutputtermhdr =
+				(struct tmComResDMATermDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				vcoutputtermhdr->unitid);
+			dprintk(DBGLVL_API, "  terminaltype = 0x%x\n",
+				vcoutputtermhdr->terminaltype);
+			switch (vcoutputtermhdr->terminaltype) {
+			case ITT_ANTENNA:
+				dprintk(DBGLVL_API, "   = ITT_ANTENNA\n");
+				break;
+			case LINE_CONNECTOR:
+				dprintk(DBGLVL_API, "   = LINE_CONNECTOR\n");
+				break;
+			case SPDIF_CONNECTOR:
+				dprintk(DBGLVL_API, "   = SPDIF_CONNECTOR\n");
+				break;
+			case COMPOSITE_CONNECTOR:
+				dprintk(DBGLVL_API,
+					"   = COMPOSITE_CONNECTOR\n");
+				break;
+			case SVIDEO_CONNECTOR:
+				dprintk(DBGLVL_API, "   = SVIDEO_CONNECTOR\n");
+				break;
+			case COMPONENT_CONNECTOR:
+				dprintk(DBGLVL_API,
+					"   = COMPONENT_CONNECTOR\n");
+				break;
+			case STANDARD_DMA:
+				dprintk(DBGLVL_API, "   = STANDARD_DMA\n");
+				break;
+			default:
+				dprintk(DBGLVL_API, "   = undefined (0x%x)\n",
+					vcoutputtermhdr->terminaltype);
+			}
+			dprintk(DBGLVL_API, "  assocterminal= 0x%x\n",
+				vcoutputtermhdr->assocterminal);
+			dprintk(DBGLVL_API, "  sourceid     = 0x%x\n",
+				vcoutputtermhdr->sourceid);
+			dprintk(DBGLVL_API, "  iterminal    = 0x%x\n",
+				vcoutputtermhdr->iterminal);
+			dprintk(DBGLVL_API, "  BARLocation  = 0x%x\n",
+				vcoutputtermhdr->BARLocation);
+			dprintk(DBGLVL_API, "  flags        = 0x%x\n",
+				vcoutputtermhdr->flags);
+			dprintk(DBGLVL_API, "  interruptid  = 0x%x\n",
+				vcoutputtermhdr->interruptid);
+			dprintk(DBGLVL_API, "  buffercount  = 0x%x\n",
+				vcoutputtermhdr->buffercount);
+			dprintk(DBGLVL_API, "  metadatasize = 0x%x\n",
+				vcoutputtermhdr->metadatasize);
+			dprintk(DBGLVL_API, "  controlsize  = 0x%x\n",
+				vcoutputtermhdr->controlsize);
+			dprintk(DBGLVL_API, "  numformats   = 0x%x\n",
+				vcoutputtermhdr->numformats);
+
+			t = (struct tmComResDescrHeader *)
+				((struct tmComResDMATermDescrHeader *)(buf + idx));
+			next_offset = idx + (vcoutputtermhdr->len);
+			for (i = 0; i < vcoutputtermhdr->numformats; i++) {
+				t = (struct tmComResDescrHeader *)
+					(buf + next_offset);
+				switch (t->subtype) {
+				case VS_FORMAT_MPEG2TS:
+					tsfmt =
+					(struct tmComResTSFormatDescrHeader *)t;
+					if (currpath == 1)
+						tsport = &dev->ports[SAA7164_PORT_TS1];
+					else
+						tsport = &dev->ports[SAA7164_PORT_TS2];
+					memcpy(&tsport->hwcfg, vcoutputtermhdr,
+						sizeof(*vcoutputtermhdr));
+					saa7164_api_configure_port_mpeg2ts(dev,
+						tsport, tsfmt);
+					break;
+				case VS_FORMAT_MPEG2PS:
+					psfmt =
+					(struct tmComResPSFormatDescrHeader *)t;
+					if (currpath == 1)
+						encport = &dev->ports[SAA7164_PORT_ENC1];
+					else
+						encport = &dev->ports[SAA7164_PORT_ENC2];
+					memcpy(&encport->hwcfg, vcoutputtermhdr,
+						sizeof(*vcoutputtermhdr));
+					saa7164_api_configure_port_mpeg2ps(dev,
+						encport, psfmt);
+					break;
+				case VS_FORMAT_VBI:
+					vbifmt =
+					(struct tmComResVBIFormatDescrHeader *)t;
+					if (currpath == 1)
+						vbiport = &dev->ports[SAA7164_PORT_VBI1];
+					else
+						vbiport = &dev->ports[SAA7164_PORT_VBI2];
+					memcpy(&vbiport->hwcfg, vcoutputtermhdr,
+						sizeof(*vcoutputtermhdr));
+					memcpy(&vbiport->vbi_fmt_ntsc, vbifmt,
+						sizeof(*vbifmt));
+					saa7164_api_configure_port_vbi(dev,
+						vbiport);
+					break;
+				case VS_FORMAT_RDS:
+					dprintk(DBGLVL_API,
+						"   = VS_FORMAT_RDS\n");
+					break;
+				case VS_FORMAT_UNCOMPRESSED:
+					dprintk(DBGLVL_API,
+					"   = VS_FORMAT_UNCOMPRESSED\n");
+					break;
+				case VS_FORMAT_TYPE:
+					dprintk(DBGLVL_API,
+						"   = VS_FORMAT_TYPE\n");
+					break;
+				default:
+					dprintk(DBGLVL_API,
+						"   = undefined (0x%x)\n",
+						t->subtype);
+				}
+				next_offset += t->len;
+			}
+
+			break;
+		case TUNER_UNIT:
+			dprintk(DBGLVL_API, " TUNER_UNIT\n");
+			tunerunithdr =
+				(struct tmComResTunerDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				tunerunithdr->unitid);
+			dprintk(DBGLVL_API, "  sourceid = 0x%x\n",
+				tunerunithdr->sourceid);
+			dprintk(DBGLVL_API, "  iunit = 0x%x\n",
+				tunerunithdr->iunit);
+			dprintk(DBGLVL_API, "  tuningstandards = 0x%x\n",
+				tunerunithdr->tuningstandards);
+			dprintk(DBGLVL_API, "  controlsize = 0x%x\n",
+				tunerunithdr->controlsize);
+			dprintk(DBGLVL_API, "  controls = 0x%x\n",
+				tunerunithdr->controls);
+
+			if (tunerunithdr->unitid == tunerunithdr->iunit) {
+				if (currpath == 1)
+					encport = &dev->ports[SAA7164_PORT_ENC1];
+				else
+					encport = &dev->ports[SAA7164_PORT_ENC2];
+				memcpy(&encport->tunerunit, tunerunithdr,
+					sizeof(struct tmComResTunerDescrHeader));
+				dprintk(DBGLVL_API,
+					"  (becomes dev->enc[%d] tuner)\n",
+					encport->nr);
+			}
+			break;
+		case VC_SELECTOR_UNIT:
+			psel = (struct tmComResSelDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, " VC_SELECTOR_UNIT\n");
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				psel->unitid);
+			dprintk(DBGLVL_API, "  nrinpins = 0x%x\n",
+				psel->nrinpins);
+			dprintk(DBGLVL_API, "  sourceid = 0x%x\n",
+				psel->sourceid);
+			break;
+		case VC_PROCESSING_UNIT:
+			pdh = (struct tmComResProcDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, " VC_PROCESSING_UNIT\n");
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				pdh->unitid);
+			dprintk(DBGLVL_API, "  sourceid = 0x%x\n",
+				pdh->sourceid);
+			dprintk(DBGLVL_API, "  controlsize = 0x%x\n",
+				pdh->controlsize);
+			if (pdh->controlsize == 0x04) {
+				if (currpath == 1)
+					encport = &dev->ports[SAA7164_PORT_ENC1];
+				else
+					encport = &dev->ports[SAA7164_PORT_ENC2];
+				memcpy(&encport->vidproc, pdh,
+					sizeof(struct tmComResProcDescrHeader));
+				dprintk(DBGLVL_API, "  (becomes dev->enc[%d])\n",
+					encport->nr);
+			}
+			break;
+		case FEATURE_UNIT:
+			afd = (struct tmComResAFeatureDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, " FEATURE_UNIT\n");
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				afd->unitid);
+			dprintk(DBGLVL_API, "  sourceid = 0x%x\n",
+				afd->sourceid);
+			dprintk(DBGLVL_API, "  controlsize = 0x%x\n",
+				afd->controlsize);
+			if (currpath == 1)
+				encport = &dev->ports[SAA7164_PORT_ENC1];
+			else
+				encport = &dev->ports[SAA7164_PORT_ENC2];
+			memcpy(&encport->audfeat, afd,
+				sizeof(struct tmComResAFeatureDescrHeader));
+			dprintk(DBGLVL_API, "  (becomes dev->enc[%d])\n",
+				encport->nr);
+			break;
+		case ENCODER_UNIT:
+			edh = (struct tmComResEncoderDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, " ENCODER_UNIT\n");
+			dprintk(DBGLVL_API, "  subtype = 0x%x\n", edh->subtype);
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n", edh->unitid);
+			dprintk(DBGLVL_API, "  vsourceid = 0x%x\n",
+			edh->vsourceid);
+			dprintk(DBGLVL_API, "  asourceid = 0x%x\n",
+				edh->asourceid);
+			dprintk(DBGLVL_API, "  iunit = 0x%x\n", edh->iunit);
+			if (edh->iunit == edh->unitid) {
+				if (currpath == 1)
+					encport = &dev->ports[SAA7164_PORT_ENC1];
+				else
+					encport = &dev->ports[SAA7164_PORT_ENC2];
+				memcpy(&encport->encunit, edh,
+					sizeof(struct tmComResEncoderDescrHeader));
+				dprintk(DBGLVL_API,
+					"  (becomes dev->enc[%d])\n",
+					encport->nr);
+			}
+			break;
+		case EXTENSION_UNIT:
+			dprintk(DBGLVL_API, " EXTENSION_UNIT\n");
+			exthdr = (struct tmComResExtDevDescrHeader *)(buf + idx);
+			dprintk(DBGLVL_API, "  unitid = 0x%x\n",
+				exthdr->unitid);
+			dprintk(DBGLVL_API, "  deviceid = 0x%x\n",
+				exthdr->deviceid);
+			dprintk(DBGLVL_API, "  devicetype = 0x%x\n",
+				exthdr->devicetype);
+			if (exthdr->devicetype & 0x1)
+				dprintk(DBGLVL_API, "   = Decoder Device\n");
+			if (exthdr->devicetype & 0x2)
+				dprintk(DBGLVL_API, "   = GPIO Source\n");
+			if (exthdr->devicetype & 0x4)
+				dprintk(DBGLVL_API, "   = Video Decoder\n");
+			if (exthdr->devicetype & 0x8)
+				dprintk(DBGLVL_API, "   = Audio Decoder\n");
+			if (exthdr->devicetype & 0x20)
+				dprintk(DBGLVL_API, "   = Crossbar\n");
+			if (exthdr->devicetype & 0x40)
+				dprintk(DBGLVL_API, "   = Tuner\n");
+			if (exthdr->devicetype & 0x80)
+				dprintk(DBGLVL_API, "   = IF PLL\n");
+			if (exthdr->devicetype & 0x100)
+				dprintk(DBGLVL_API, "   = Demodulator\n");
+			if (exthdr->devicetype & 0x200)
+				dprintk(DBGLVL_API, "   = RDS Decoder\n");
+			if (exthdr->devicetype & 0x400)
+				dprintk(DBGLVL_API, "   = Encoder\n");
+			if (exthdr->devicetype & 0x800)
+				dprintk(DBGLVL_API, "   = IR Decoder\n");
+			if (exthdr->devicetype & 0x1000)
+				dprintk(DBGLVL_API, "   = EEPROM\n");
+			if (exthdr->devicetype & 0x2000)
+				dprintk(DBGLVL_API,
+					"   = VBI Decoder\n");
+			if (exthdr->devicetype & 0x10000)
+				dprintk(DBGLVL_API,
+					"   = Streaming Device\n");
+			if (exthdr->devicetype & 0x20000)
+				dprintk(DBGLVL_API,
+					"   = DRM Device\n");
+			if (exthdr->devicetype & 0x40000000)
+				dprintk(DBGLVL_API,
+					"   = Generic Device\n");
+			if (exthdr->devicetype & 0x80000000)
+				dprintk(DBGLVL_API,
+					"   = Config Space Device\n");
+			dprintk(DBGLVL_API, "  numgpiopins = 0x%x\n",
+				exthdr->numgpiopins);
+			dprintk(DBGLVL_API, "  numgpiogroups = 0x%x\n",
+				exthdr->numgpiogroups);
+			dprintk(DBGLVL_API, "  controlsize = 0x%x\n",
+				exthdr->controlsize);
+			if (exthdr->devicetype & 0x80) {
+				if (currpath == 1)
+					encport = &dev->ports[SAA7164_PORT_ENC1];
+				else
+					encport = &dev->ports[SAA7164_PORT_ENC2];
+				memcpy(&encport->ifunit, exthdr,
+					sizeof(struct tmComResExtDevDescrHeader));
+				dprintk(DBGLVL_API,
+					"  (becomes dev->enc[%d])\n",
+					encport->nr);
+			}
+			break;
+		case PVC_INFRARED_UNIT:
+			dprintk(DBGLVL_API, " PVC_INFRARED_UNIT\n");
+			break;
+		case DRM_UNIT:
+			dprintk(DBGLVL_API, " DRM_UNIT\n");
+			break;
+		default:
+			dprintk(DBGLVL_API, "default %d\n", hdr->subtype);
+		}
+
+		dprintk(DBGLVL_API, " 1.%x\n", hdr->len);
+		dprintk(DBGLVL_API, " 2.%x\n", hdr->type);
+		dprintk(DBGLVL_API, " 3.%x\n", hdr->subtype);
+		dprintk(DBGLVL_API, " 4.%x\n", hdr->unitid);
+
+		idx += hdr->len;
+	}
+
+	return 0;
+}
+
+int saa7164_api_enum_subdevs(struct saa7164_dev *dev)
+{
+	int ret;
+	u32 buflen = 0;
+	u8 *buf;
+
+	dprintk(DBGLVL_API, "%s()\n", __func__);
+
+	/* Get the total descriptor length */
+	ret = saa7164_cmd_send(dev, 0, GET_LEN,
+		GET_DESCRIPTORS_CONTROL, sizeof(buflen), &buflen);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+
+	dprintk(DBGLVL_API, "%s() total descriptor size = %d bytes.\n",
+		__func__, buflen);
+
+	/* Allocate enough storage for all of the descs */
+	buf = kzalloc(buflen, GFP_KERNEL);
+	if (!buf)
+		return SAA_ERR_NO_RESOURCES;
+
+	/* Retrieve them */
+	ret = saa7164_cmd_send(dev, 0, GET_CUR,
+		GET_DESCRIPTORS_CONTROL, buflen, buf);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
+		goto out;
+	}
+
+	if (saa_debug & DBGLVL_API)
+		print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, buf,
+			       buflen & ~15, false);
+
+	saa7164_api_dump_subdevs(dev, buf, buflen);
+
+out:
+	kfree(buf);
+	return ret;
+}
+
+int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
+	u32 datalen, u8 *data)
+{
+	struct saa7164_dev *dev = bus->dev;
+	u16 len = 0;
+	int unitid;
+	u8 buf[256];
+	int ret;
+
+	dprintk(DBGLVL_API, "%s() addr=%x reglen=%d datalen=%d\n",
+		__func__, addr, reglen, datalen);
+
+	if (reglen > 4)
+		return -EIO;
+
+	/* Prepare the send buffer */
+	/* Bytes 00-03 source register length
+	 *       04-07 source bytes to read
+	 *       08... register address
+	 */
+	memset(buf, 0, sizeof(buf));
+	memcpy((buf + 2 * sizeof(u32) + 0), reg, reglen);
+	*((u32 *)(buf + 0 * sizeof(u32))) = reglen;
+	*((u32 *)(buf + 1 * sizeof(u32))) = datalen;
+
+	unitid = saa7164_i2caddr_to_unitid(bus, addr);
+	if (unitid < 0) {
+		printk(KERN_ERR
+			"%s() error, cannot translate regaddr 0x%x to unitid\n",
+			__func__, addr);
+		return -EIO;
+	}
+
+	ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN,
+		EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret);
+		return -EIO;
+	}
+
+	dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len);
+
+	if (saa_debug & DBGLVL_I2C)
+		print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, buf,
+			       32, false);
+
+	ret = saa7164_cmd_send(bus->dev, unitid, GET_CUR,
+		EXU_REGISTER_ACCESS_CONTROL, len, &buf);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret);
+	else {
+		if (saa_debug & DBGLVL_I2C)
+			print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1,
+				       buf, sizeof(buf), false);
+		memcpy(data, (buf + 2 * sizeof(u32) + reglen), datalen);
+	}
+
+	return ret == SAA_OK ? 0 : -EIO;
+}
+
+/* For a given 8 bit i2c address device, write the buffer */
+int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
+	u8 *data)
+{
+	struct saa7164_dev *dev = bus->dev;
+	u16 len = 0;
+	int unitid;
+	int reglen;
+	u8 buf[256];
+	int ret;
+
+	dprintk(DBGLVL_API, "%s() addr=0x%2x len=0x%x\n",
+		__func__, addr, datalen);
+
+	if ((datalen == 0) || (datalen > 232))
+		return -EIO;
+
+	memset(buf, 0, sizeof(buf));
+
+	unitid = saa7164_i2caddr_to_unitid(bus, addr);
+	if (unitid < 0) {
+		printk(KERN_ERR
+			"%s() error, cannot translate regaddr 0x%x to unitid\n",
+			__func__, addr);
+		return -EIO;
+	}
+
+	reglen = saa7164_i2caddr_to_reglen(bus, addr);
+	if (reglen < 0) {
+		printk(KERN_ERR
+			"%s() error, cannot translate regaddr to reglen\n",
+			__func__);
+		return -EIO;
+	}
+
+	ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN,
+		EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len);
+	if (ret != SAA_OK) {
+		printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret);
+		return -EIO;
+	}
+
+	dprintk(DBGLVL_API, "%s() len = %d bytes unitid=0x%x\n", __func__,
+		len, unitid);
+
+	/* Prepare the send buffer */
+	/* Bytes 00-03 dest register length
+	 *       04-07 dest bytes to write
+	 *       08... register address
+	 */
+	*((u32 *)(buf + 0 * sizeof(u32))) = reglen;
+	*((u32 *)(buf + 1 * sizeof(u32))) = datalen - reglen;
+	memcpy((buf + 2 * sizeof(u32)), data, datalen);
+
+	if (saa_debug & DBGLVL_I2C)
+		print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1,
+			       buf, sizeof(buf), false);
+
+	ret = saa7164_cmd_send(bus->dev, unitid, SET_CUR,
+		EXU_REGISTER_ACCESS_CONTROL, len, &buf);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret);
+
+	return ret == SAA_OK ? 0 : -EIO;
+}
+
+static int saa7164_api_modify_gpio(struct saa7164_dev *dev, u8 unitid,
+	u8 pin, u8 state)
+{
+	int ret;
+	struct tmComResGPIO t;
+
+	dprintk(DBGLVL_API, "%s(0x%x, %d, %d)\n",
+		__func__, unitid, pin, state);
+
+	if ((pin > 7) || (state > 2))
+		return SAA_ERR_BAD_PARAMETER;
+
+	t.pin = pin;
+	t.state = state;
+
+	ret = saa7164_cmd_send(dev, unitid, SET_CUR,
+		EXU_GPIO_CONTROL, sizeof(t), &t);
+	if (ret != SAA_OK)
+		printk(KERN_ERR "%s() error, ret = 0x%x\n",
+			__func__, ret);
+
+	return ret;
+}
+
+int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid,
+	u8 pin)
+{
+	return saa7164_api_modify_gpio(dev, unitid, pin, 1);
+}
+
+int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid,
+	u8 pin)
+{
+	return saa7164_api_modify_gpio(dev, unitid, pin, 0);
+}
+