Commit e478d405 authored by Maciej S. Szmigiero's avatar Maciej S. Szmigiero Committed by Mauro Carvalho Chehab
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media: cxusb: add analog mode support for Medion MD95700 



This patch adds support for analog part of Medion 95700 in the cxusb
driver.

What works:
* Video capture at various sizes with sequential fields,
* Input switching (TV Tuner, Composite, S-Video),
* TV and radio tuning,
* Video standard switching and auto detection,
* Radio mode switching (stereo / mono),
* Unplugging while capturing,
* DVB / analog coexistence.

What does not work yet:
* Audio,
* VBI,
* Picture controls.

Signed-off-by: default avatarMaciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: remove left-over commented-out debug message]
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent d525e5c2

drivers/media/usb/dvb-usb/Kconfig

+14 −2
Original line number Diff line number Diff line
@@ -139,12 +139,24 @@ config DVB_USB_CXUSB 
	select MEDIA_TUNER_SI2157 if MEDIA_SUBDRV_AUTOSELECT

	help

	  Say Y here to support the Conexant USB2.0 hybrid reference design.

	  Currently, only DVB and ATSC modes are supported, analog mode

	  shall be added in the future. Devices that require this module:

	  DVB and ATSC modes are supported, for a basic analog mode support

	  see the next option ("Analog support for the Conexant USB2.0 hybrid

	  reference design").

	  Devices that require this module:



	  Medion MD95700 hybrid USB2.0 device.

	  DViCO FusionHDTV (Bluebird) USB2.0 devices



config DVB_USB_CXUSB_ANALOG

	bool "Analog support for the Conexant USB2.0 hybrid reference design"

	depends on DVB_USB_CXUSB && VIDEO_V4L2

	select VIDEO_CX25840

	select VIDEOBUF2_VMALLOC

	help

	  Say Y here to enable basic analog mode support for the Conexant

	  USB2.0 hybrid reference design.

	  Currently this mode is supported only on a Medion MD95700 device.



config DVB_USB_M920X

	tristate "Uli m920x DVB-T USB2.0 support"

	depends on DVB_USB

drivers/media/usb/dvb-usb/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -42,6 +42,9 @@ dvb-usb-digitv-objs := digitv.o 
obj-$(CONFIG_DVB_USB_DIGITV) += dvb-usb-digitv.o



dvb-usb-cxusb-objs := cxusb.o

ifeq ($(CONFIG_DVB_USB_CXUSB_ANALOG),y)

dvb-usb-cxusb-objs += cxusb-analog.o

endif

obj-$(CONFIG_DVB_USB_CXUSB) += dvb-usb-cxusb.o



dvb-usb-ttusb2-objs := ttusb2.o

drivers/media/usb/dvb-usb/cxusb-analog.c

0 → 100644
+1845 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/media/usb/dvb-usb/cxusb.c

+0 −2
Original line number Diff line number Diff line
@@ -11,7 +11,6 @@ 
 * design, so it can be reused for the "analogue-only" device (if it will

 * appear at all).

 *

 * TODO: Use the cx25840-driver for the analogue part

 *

 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)

 * Copyright (C) 2006 Michael Krufky (mkrufky@linuxtv.org)
@@ -2548,5 +2547,4 @@ MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); 
MODULE_AUTHOR("Chris Pascoe <c.pascoe@itee.uq.edu.au>");

MODULE_AUTHOR("Maciej S. Szmigiero <mail@maciej.szmigiero.name>");

MODULE_DESCRIPTION("Driver for Conexant USB2.0 hybrid reference design");

MODULE_VERSION("1.0-alpha");

MODULE_LICENSE("GPL");

drivers/media/usb/dvb-usb/cxusb.h

+106 −0
Original line number Diff line number Diff line
@@ -2,12 +2,29 @@ 
#ifndef _DVB_USB_CXUSB_H_

#define _DVB_USB_CXUSB_H_



#include <linux/completion.h>

#include <linux/i2c.h>

#include <linux/list.h>

#include <linux/mutex.h>

#include <linux/usb.h>

#include <linux/workqueue.h>

#include <media/v4l2-common.h>

#include <media/v4l2-dev.h>

#include <media/v4l2-device.h>

#include <media/videobuf2-core.h>

#include <media/videobuf2-v4l2.h>



#define DVB_USB_LOG_PREFIX "cxusb"

#include "dvb-usb.h"



#define CXUSB_VIDEO_URBS (5)

#define CXUSB_VIDEO_URB_MAX_SIZE (512 * 1024)



#define CXUSB_VIDEO_PKT_SIZE 3030

#define CXUSB_VIDEO_MAX_FRAME_PKTS 346

#define CXUSB_VIDEO_MAX_FRAME_SIZE (CXUSB_VIDEO_MAX_FRAME_PKTS * \

					CXUSB_VIDEO_PKT_SIZE)



/* usb commands - some of it are guesses, don't have a reference yet */

#define CMD_BLUEBIRD_GPIO_RW 0x05
@@ -32,6 +49,20 @@ 
#define CMD_ANALOG        0x50

#define CMD_DIGITAL       0x51



#define CXUSB_BT656_PREAMBLE ((const u8 *)"\xff\x00\x00")



#define CXUSB_BT656_FIELD_MASK BIT(6)

#define CXUSB_BT656_FIELD_1 0

#define CXUSB_BT656_FIELD_2 BIT(6)



#define CXUSB_BT656_VBI_MASK BIT(5)

#define CXUSB_BT656_VBI_ON BIT(5)

#define CXUSB_BT656_VBI_OFF 0



#define CXUSB_BT656_SEAV_MASK BIT(4)

#define CXUSB_BT656_SEAV_EAV BIT(4)

#define CXUSB_BT656_SEAV_SAV 0



/* Max transfer size done by I2C transfer functions */

#define MAX_XFER_SIZE  80
@@ -54,6 +85,29 @@ enum cxusb_open_type { 
	CXUSB_OPEN_ANALOG, CXUSB_OPEN_DIGITAL

};



struct cxusb_medion_auxbuf {

	u8 *buf;

	unsigned int len;

	unsigned int paylen;

};



enum cxusb_bt656_mode {

	NEW_FRAME, FIRST_FIELD, SECOND_FIELD

};



enum cxusb_bt656_fmode {

	START_SEARCH, LINE_SAMPLES, VBI_SAMPLES

};



struct cxusb_bt656_params {

	enum cxusb_bt656_mode mode;

	enum cxusb_bt656_fmode fmode;

	unsigned int pos;

	unsigned int line;

	unsigned int linesamples;

	u8 *buf;

};



struct cxusb_medion_dev {

	/* has to be the first one */

	struct cxusb_state state;
@@ -63,18 +117,69 @@ struct cxusb_medion_dev { 
	enum cxusb_open_type open_type;

	unsigned int open_ctr;

	struct mutex open_lock;



#ifdef CONFIG_DVB_USB_CXUSB_ANALOG

	struct v4l2_device v4l2dev;

	struct v4l2_subdev *cx25840;

	struct v4l2_subdev *tuner;

	struct v4l2_subdev *tda9887;

	struct video_device *videodev, *radiodev;

	struct mutex dev_lock;



	struct vb2_queue videoqueue;

	u32 input;

	bool stop_streaming;

	u32 width, height;

	u32 field_order;

	struct cxusb_medion_auxbuf auxbuf;

	v4l2_std_id norm;



	struct urb *streamurbs[CXUSB_VIDEO_URBS];

	unsigned long urbcomplete;

	struct work_struct urbwork;

	unsigned int nexturb;



	struct cxusb_bt656_params bt656;

	struct cxusb_medion_vbuffer *vbuf;

	__u32 vbuf_sequence;



	struct list_head buflist;



	struct completion v4l2_release;

#endif

};



struct cxusb_medion_vbuffer {

	struct vb2_v4l2_buffer vb2;

	struct list_head list;

};



/* defines for "debug" module parameter */

#define CXUSB_DBG_RC BIT(0)

#define CXUSB_DBG_I2C BIT(1)

#define CXUSB_DBG_MISC BIT(2)

#define CXUSB_DBG_BT656 BIT(3)

#define CXUSB_DBG_URB BIT(4)

#define CXUSB_DBG_OPS BIT(5)

#define CXUSB_DBG_AUXB BIT(6)



extern int dvb_usb_cxusb_debug;



#define cxusb_vprintk(dvbdev, lvl, ...) do {				\

		struct cxusb_medion_dev *_cxdev = (dvbdev)->priv;	\

		if (dvb_usb_cxusb_debug & CXUSB_DBG_##lvl)		\

			v4l2_printk(KERN_DEBUG,			\

				    &_cxdev->v4l2dev, __VA_ARGS__);	\

	} while (0)



int cxusb_ctrl_msg(struct dvb_usb_device *d,

		   u8 cmd, const u8 *wbuf, int wlen, u8 *rbuf, int rlen);



#ifdef CONFIG_DVB_USB_CXUSB_ANALOG

int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev);

int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev);

void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev);

#else

static inline int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev)

{

	return -EINVAL;
@@ -88,6 +193,7 @@ static inline int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev) 
static inline void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev)

{

}

#endif



int cxusb_medion_get(struct dvb_usb_device *dvbdev,

		     enum cxusb_open_type open_type);

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