[media] tlg2300: move to staging in preparation for removal

This driver hasn't been tested in a long, long time. The company that made
this chip has gone bust many years ago and hardware using this chip is next
to impossible to find.

This driver needs to be converted to newer media frameworks but due to the
lack of hardware that's going to be impossible. Since cheap alternatives are
easily available, there is little point in keeping this driver alive.

In other words, this driver is a prime candidate for removal. If someone is
interested in working on this driver to prevent its removal, then please
contact the linux-media mailinglist.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 271 insertions, 0 deletions

diff --git a/drivers/staging/media/tlg2300/pd-common.h b/drivers/staging/media/tlg2300/pd-common.h
new file mode 100644
index 000000000000..9e23ad32d2fe
--- /dev/null
+++ b/drivers/staging/media/tlg2300/pd-common.h
@@ -0,0 +1,271 @@
+#ifndef PD_COMMON_H
+#define PD_COMMON_H
+
+#include <linux/fs.h>
+#include <linux/wait.h>
+#include <linux/list.h>
+#include <linux/videodev2.h>
+#include <linux/semaphore.h>
+#include <linux/usb.h>
+#include <linux/poll.h>
+#include <media/videobuf-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#include "dvb_frontend.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dmxdev.h"
+
+#define SBUF_NUM	8
+#define MAX_BUFFER_NUM	6
+#define PK_PER_URB	32
+#define ISO_PKT_SIZE	3072
+
+#define POSEIDON_STATE_NONE		(0x0000)
+#define POSEIDON_STATE_ANALOG		(0x0001)
+#define POSEIDON_STATE_FM		(0x0002)
+#define POSEIDON_STATE_DVBT		(0x0004)
+#define POSEIDON_STATE_DISCONNECT	(0x0080)
+
+#define PM_SUSPEND_DELAY	3
+
+#define V4L_PAL_VBI_LINES	18
+#define V4L_NTSC_VBI_LINES	12
+#define V4L_PAL_VBI_FRAMESIZE	(V4L_PAL_VBI_LINES * 1440 * 2)
+#define V4L_NTSC_VBI_FRAMESIZE	(V4L_NTSC_VBI_LINES * 1440 * 2)
+
+#define TUNER_FREQ_MIN		(45000000U)
+#define TUNER_FREQ_MAX		(862000000U)
+
+struct vbi_data {
+	struct video_device	v_dev;
+	struct video_data	*video;
+	struct front_face	*front;
+
+	unsigned int		copied;
+	unsigned int		vbi_size; /* the whole size of two fields */
+	int 			users;
+};
+
+/*
+ * This is the running context of the video, it is useful for
+ * resume()
+ */
+struct running_context {
+	u32		freq;		/* VIDIOC_S_FREQUENCY */
+	int		audio_idx;	/* VIDIOC_S_TUNER    */
+	v4l2_std_id	tvnormid;	/* VIDIOC_S_STD     */
+	int		sig_index;	/* VIDIOC_S_INPUT  */
+	struct v4l2_pix_format pix;	/* VIDIOC_S_FMT   */
+};
+
+struct video_data {
+	/* v4l2 video device */
+	struct video_device	v_dev;
+	struct v4l2_ctrl_handler ctrl_handler;
+
+	/* the working context */
+	struct running_context	context;
+
+	/* for data copy */
+	int		field_count;
+
+	char		*dst;
+	int		lines_copied;
+	int		prev_left;
+
+	int		lines_per_field;
+	int		lines_size;
+
+	/* for communication */
+	u8			endpoint_addr;
+	struct urb 		*urb_array[SBUF_NUM];
+	struct vbi_data		*vbi;
+	struct poseidon 	*pd;
+	struct front_face	*front;
+
+	int			is_streaming;
+	int			users;
+
+	/* for bubble handler */
+	struct work_struct	bubble_work;
+};
+
+enum pcm_stream_state {
+	STREAM_OFF,
+	STREAM_ON,
+	STREAM_SUSPEND,
+};
+
+#define AUDIO_BUFS (3)
+#define CAPTURE_STREAM_EN 1
+struct poseidon_audio {
+	struct urb		*urb_array[AUDIO_BUFS];
+	unsigned int 		copied_position;
+	struct snd_pcm_substream   *capture_pcm_substream;
+
+	unsigned int 		rcv_position;
+	struct	snd_card	*card;
+	int 			card_close;
+
+	int 			users;
+	int			pm_state;
+	enum pcm_stream_state 	capture_stream;
+};
+
+struct radio_data {
+	__u32		fm_freq;
+	unsigned int	is_radio_streaming;
+	int		pre_emphasis;
+	struct video_device fm_dev;
+	struct v4l2_ctrl_handler ctrl_handler;
+};
+
+#define DVB_SBUF_NUM		4
+#define DVB_URB_BUF_SIZE	0x2000
+struct pd_dvb_adapter {
+	struct dvb_adapter	dvb_adap;
+	struct dvb_frontend	dvb_fe;
+	struct dmxdev		dmxdev;
+	struct dvb_demux	demux;
+
+	atomic_t		users;
+	atomic_t		active_feed;
+
+	/* data transfer */
+	s32			is_streaming;
+	struct urb		*urb_array[DVB_SBUF_NUM];
+	struct poseidon		*pd_device;
+	u8			ep_addr;
+	u8			reserved[3];
+
+	/* data for power resume*/
+	struct dtv_frontend_properties fe_param;
+
+	/* for channel scanning */
+	int		prev_freq;
+	int		bandwidth;
+	unsigned long	last_jiffies;
+};
+
+struct front_face {
+	/* use this field to distinguish VIDEO and VBI */
+	enum v4l2_buf_type	type;
+
+	/* for host */
+	struct videobuf_queue	q;
+
+	/* the bridge for host and device */
+	struct videobuf_buffer	*curr_frame;
+
+	/* for device */
+	spinlock_t		queue_lock;
+	struct list_head	active;
+	struct poseidon		*pd;
+};
+
+struct poseidon {
+	struct list_head	device_list;
+
+	struct mutex		lock;
+	struct kref		kref;
+
+	/* for V4L2 */
+	struct v4l2_device	v4l2_dev;
+
+	/* hardware info */
+	struct usb_device	*udev;
+	struct usb_interface	*interface;
+	int 			cur_transfer_mode;
+
+	struct video_data	video_data;	/* video */
+	struct vbi_data		vbi_data;	/* vbi	 */
+	struct poseidon_audio	audio;		/* audio (alsa) */
+	struct radio_data	radio_data;	/* FM	 */
+	struct pd_dvb_adapter	dvb_data;	/* DVB	 */
+
+	u32			state;
+	struct file		*file_for_stream; /* the active stream*/
+
+#ifdef CONFIG_PM
+	int (*pm_suspend)(struct poseidon *);
+	int (*pm_resume)(struct poseidon *);
+	pm_message_t		msg;
+
+	struct work_struct	pm_work;
+	u8			portnum;
+#endif
+};
+
+struct poseidon_format {
+	char 	*name;
+	int	fourcc;		 /* video4linux 2	  */
+	int	depth;		 /* bit/pixel		  */
+	int	flags;
+};
+
+struct poseidon_tvnorm {
+	v4l2_std_id	v4l2_id;
+	char		name[12];
+	u32		tlg_tvnorm;
+};
+
+/* video */
+int pd_video_init(struct poseidon *);
+void pd_video_exit(struct poseidon *);
+int stop_all_video_stream(struct poseidon *);
+
+/* alsa audio */
+int poseidon_audio_init(struct poseidon *);
+int poseidon_audio_free(struct poseidon *);
+#ifdef CONFIG_PM
+int pm_alsa_suspend(struct poseidon *);
+int pm_alsa_resume(struct poseidon *);
+#endif
+
+/* dvb */
+int pd_dvb_usb_device_init(struct poseidon *);
+void pd_dvb_usb_device_exit(struct poseidon *);
+void pd_dvb_usb_device_cleanup(struct poseidon *);
+int pd_dvb_get_adapter_num(struct pd_dvb_adapter *);
+void dvb_stop_streaming(struct pd_dvb_adapter *);
+
+/* FM */
+int poseidon_fm_init(struct poseidon *);
+int poseidon_fm_exit(struct poseidon *);
+
+/* vendor command ops */
+int send_set_req(struct poseidon*, u8, s32, s32*);
+int send_get_req(struct poseidon*, u8, s32, void*, s32*, s32);
+s32 set_tuner_mode(struct poseidon*, unsigned char);
+
+/* bulk urb alloc/free */
+int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
+			struct usb_device *udev, u8 ep_addr,
+			int buf_size, gfp_t gfp_flags,
+			usb_complete_t complete_fn, void *context);
+void free_all_urb_generic(struct urb **urb_array, int num);
+
+/* misc */
+void poseidon_delete(struct kref *kref);
+extern int debug_mode;
+void set_debug_mode(struct video_device *vfd, int debug_mode);
+
+#ifdef CONFIG_PM
+#define in_hibernation(pd) (pd->msg.event == PM_EVENT_FREEZE)
+#else
+#define in_hibernation(pd) (0)
+#endif
+#define get_pm_count(p) (atomic_read(&(p)->interface->pm_usage_cnt))
+
+#define log(a, ...) printk(KERN_DEBUG "\t[ %s : %.3d ] "a"\n", \
+				__func__, __LINE__,  ## __VA_ARGS__)
+
+/* for power management */
+#define logpm(pd) do {\
+			if (debug_mode & 0x10)\
+				log();\
+		} while (0)
+
+#endif