V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder…

…/decoder

It took three core maintainers, over four years of work, eight new i2c
modules, eleven new V4L2 ioctls, three new DVB video ioctls, a Sliced
VBI API, a new MPEG encoder API, an enhanced DVB video MPEG decoding
API, major YUV/OSD contributions from Ian and John, web/wiki/svn/trac
support from Axel Thimm, (hardware) support from Hauppauge, support and
assistance from the v4l-dvb people and the many, many users of ivtv to
finally make it possible to merge this driver into the kernel.
Thank you all!

Signed-off-by: Kevin Thayer <nufan_wfk@yahoo.com>
Signed-off-by: Chris Kennedy <c@groovy.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: John P Harvey <john.p.harvey@btinternet.com>
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/Kconfig

@@ -647,6 +647,8 @@ config VIDEO_HEXIUM_GEMINI
 
 source "drivers/media/video/cx88/Kconfig"
 
+source "drivers/media/video/ivtv/Kconfig"
+
 config VIDEO_M32R_AR
 	tristate "AR devices"
 	depends on M32R && VIDEO_V4L1

drivers/media/video/Makefile

@@ -61,6 +61,7 @@ obj-$(CONFIG_VIDEO_CPIA_USB) += cpia_usb.o
 obj-$(CONFIG_VIDEO_MEYE) += meye.o
 obj-$(CONFIG_VIDEO_SAA7134) += ir-kbd-i2c.o saa7134/
 obj-$(CONFIG_VIDEO_CX88) += cx88/
+obj-$(CONFIG_VIDEO_IVTV) += ivtv/
 obj-$(CONFIG_VIDEO_EM28XX) += em28xx/
 obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
 obj-$(CONFIG_VIDEO_TVP5150) += tvp5150.o

drivers/media/video/ivtv/Kconfig

@@ -0,0 +1,26 @@
+config VIDEO_IVTV
+	tristate "Conexant cx23416/cx23415 MPEG encoder/decoder support"
+	depends on VIDEO_V4L2 && USB && I2C && EXPERIMENTAL
+	select FW_LOADER
+	select VIDEO_TUNER
+	select VIDEO_TVEEPROM
+	select VIDEO_CX2341X
+	select VIDEO_MSP3400
+	select VIDEO_SAA711X
+	select VIDEO_SAA7127
+	select VIDEO_TVAUDIO
+	select VIDEO_CS53L32A
+	select VIDEO_TLV320AIC23B
+	select VIDEO_WM8775
+	select VIDEO_WM8739
+	select VIDEO_UPD64031A
+	select VIDEO_UPD64083
+	---help---
+	  This is a video4linux driver for Conexant cx23416 or cx23416 based
+	  PCI personal video recorder devices.
+
+	  This is used in devices such as the Hauppauge PVR-150/250/350/500
+	  cards.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ivtv.

drivers/media/video/ivtv/Makefile

@@ -0,0 +1,7 @@
+ivtv-objs	:= ivtv-audio.o ivtv-cards.o ivtv-controls.o \
+		   ivtv-driver.o ivtv-fileops.o ivtv-firmware.o \
+		   ivtv-gpio.o ivtv-i2c.o ivtv-ioctl.o ivtv-irq.o \
+		   ivtv-mailbox.o ivtv-queue.o ivtv-streams.o ivtv-udma.o \
+		   ivtv-vbi.o ivtv-video.o ivtv-yuv.o
+
+obj-$(CONFIG_VIDEO_IVTV) += ivtv.o

drivers/media/video/ivtv/ivtv-audio.c

@@ -0,0 +1,74 @@
+/*
+    Audio-related ivtv functions.
+    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
+    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
+
+    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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ivtv-driver.h"
+#include "ivtv-mailbox.h"
+#include "ivtv-i2c.h"
+#include "ivtv-gpio.h"
+#include "ivtv-cards.h"
+#include "ivtv-audio.h"
+#include <media/msp3400.h>
+#include <linux/videodev.h>
+
+/* Selects the audio input and output according to the current
+   settings. */
+int ivtv_audio_set_io(struct ivtv *itv)
+{
+	struct v4l2_routing route;
+	u32 audio_input;
+	int mux_input;
+
+	/* Determine which input to use */
+	if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
+		audio_input = itv->card->radio_input.audio_input;
+		mux_input = itv->card->radio_input.muxer_input;
+	} else {
+		audio_input = itv->card->audio_inputs[itv->audio_input].audio_input;
+		mux_input = itv->card->audio_inputs[itv->audio_input].muxer_input;
+	}
+
+	/* handle muxer chips */
+	route.input = mux_input;
+	route.output = 0;
+	ivtv_i2c_hw(itv, itv->card->hw_muxer, VIDIOC_INT_S_AUDIO_ROUTING, &route);
+
+	route.input = audio_input;
+	if (itv->card->hw_audio & IVTV_HW_MSP34XX) {
+		route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
+	}
+	return ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, &route);
+}
+
+void ivtv_audio_set_route(struct ivtv *itv, struct v4l2_routing *route)
+{
+	ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, route);
+}
+
+void ivtv_audio_set_audio_clock_freq(struct ivtv *itv, u8 freq)
+{
+	static u32 freqs[3] = { 44100, 48000, 32000 };
+
+	/* The audio clock of the digitizer must match the codec sample
+	   rate otherwise you get some very strange effects. */
+	if (freq > 2)
+		return;
+	ivtv_call_i2c_clients(itv, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[freq]);
+}
+

drivers/media/video/ivtv/ivtv-audio.h

@@ -0,0 +1,23 @@
+/*
+    Audio-related ivtv functions.
+    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
+    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
+
+    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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+int ivtv_audio_set_io(struct ivtv *itv);
+void ivtv_audio_set_route(struct ivtv *itv, struct v4l2_routing *route);
+void ivtv_audio_set_audio_clock_freq(struct ivtv *itv, u8 freq);