Added experimental branch for pvrusb2

From: Mike Isely at pobox <isely@pobox.com>

- Added experimental branch for pvrusb2

Signed-off-by: Mike Isely at pobox <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

1 files changed, 159 insertions, 0 deletions

diff --git a/v4l_experimental/pvrusb2/pvrusb2-hdw-internal.h b/v4l_experimental/pvrusb2/pvrusb2-hdw-internal.h
new file mode 100644
index 000000000..ad5cc0731
--- /dev/null
+++ b/v4l_experimental/pvrusb2/pvrusb2-hdw-internal.h
@@ -0,0 +1,159 @@
+/*
+ *
+ *  $Id: pvrusb2-hdw-internal.h,v 1.1 2005/11/14 13:31:24 mchehab Exp $
+ *
+ *  Copyright (C) 2005 Mike Isely <isely@pobox.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
+ *
+ *  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
+ *
+ */
+#ifndef __PVRUSB2_HDW_INTERNAL_H
+#define __PVRUSB2_HDW_INTERNAL_H
+
+/*
+
+  This header sets up all the internal structures and definitions needed to
+  track and coordinate the driver's interaction with the hardware.  ONLY
+  source files which actually implement part of that whole circus should be
+  including this header.  Higher levels, like the external layers to the
+  various public APIs (V4L, sysfs, etc) should NOT ever include this
+  private, internal header.  This means that pvrusb2-hdw, pvrusb2-encoder,
+  etc will include this, but pvrusb2-v4l should not.
+
+*/
+
+#include "compat.h"
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <asm/semaphore.h>
+#include "pvrusb2-hdw.h"
+#include "pvrusb2-io.h"
+
+#define PVR2_VID_ENDPOINT        0x84
+#define PVR2_UNK_ENDPOINT        0x86    /* maybe raw yuv ? */
+#define PVR2_VBI_ENDPOINT        0x88
+
+#define PVR2_CTL_BUFFSIZE        64
+
+#define FREQTABLE_SIZE 500
+
+#define LOCK_TAKE(x) do { down(&x##_sem); x##_held = !0; } while (0)
+#define LOCK_GIVE(x) do { x##_held = 0; up(&x##_sem); } while (0)
+
+struct pvr2_ctl_state {
+	int value;
+	int dirty;
+};
+
+/* This structure contains all state data directly needed to
+   manipulate the hardware (as opposed to complying with a kernel
+   interface) */
+struct pvr2_hdw {
+	/* Underlying USB device handle */
+	struct usb_device *usb_dev;
+	struct usb_interface *usb_intf;
+
+	/* Video spigot */
+	struct pvr2_stream *vid_stream;
+
+	/* Mutex for all hardware state control */
+	struct semaphore big_lock_sem;
+	int big_lock_held;  /* For debugging */
+
+	char name[32];
+
+	/* I2C stuff */
+	struct i2c_adapter i2c_adap;
+	struct i2c_algorithm i2c_algo;
+	int i2c_linked;
+	struct i2c_client *i2c_tuner_client;
+	struct i2c_client *i2c_audio_client;
+	struct i2c_client *i2c_video_client;
+	struct i2c_client *i2c_tveeprom_client;
+
+	/* Frequency table */
+	unsigned int freqTable[FREQTABLE_SIZE];
+
+	/* Stuff for handling low level control interaction with device */
+	struct semaphore ctl_lock_sem;
+	int ctl_lock_held;  /* For debugging */
+	struct urb *ctl_write_urb;
+	struct urb *ctl_read_urb;
+	unsigned char *ctl_write_buffer;
+	unsigned char *ctl_read_buffer;
+	volatile int ctl_write_pend_flag;
+	volatile int ctl_read_pend_flag;
+	volatile int ctl_timeout_flag;
+	struct completion ctl_done;
+	unsigned char cmd_buffer[PVR2_CTL_BUFFSIZE];
+	int cmd_debug_state;               // Low level command debugging info
+	unsigned char cmd_debug_code;      //
+	unsigned int cmd_debug_write_len;  //
+	unsigned int cmd_debug_read_len;   //
+
+	int flag_ok;            // device in known good state
+	int flag_disconnected;  // flag_ok == 0 due to disconnect
+	int flag_init_ok;       // true if structure is fully initialized
+	int flag_streaming_enabled; // true if streaming should be on
+
+	// CPU firmware info (used to help find / save firmware data)
+	char *fw_buffer;
+	unsigned int fw_size;
+
+	// Which subsystem pieces have been enabled / configured
+	unsigned long subsys_enabled_mask;
+
+	// Which subsystems are manipulated to enable streaming
+	unsigned long subsys_stream_mask;
+
+	/* Tuner / frequency control stuff */
+	unsigned int tuner_type;
+	unsigned long video_standards;
+
+	/* saa7115 info: 0=unknown 1=new decoder 2=old decoder */
+	int decoder_info;
+
+	int unit_number;             /* ID for driver instance */
+	unsigned long serial_number; /* ID for hardware itself */
+
+	/* Minor number used by v4l logic (yes, this is a hack, as there should
+	   be no v4l junk here).  Probably a better way to do this. */
+	int v4l_minor_number;
+
+	enum pvr2_config config;
+
+	/* Information about what audio signal we're hearing */
+	int flag_stereo;
+	int flag_bilingual;
+
+	/* Every last bit of controllable state */
+	struct pvr2_ctl_state controls[PVR2_CID_COUNT];
+};
+
+int pvr2_hdw_set_ctl_value_internal(struct pvr2_hdw *hdw,
+                                    unsigned int ctl_id,int value);
+int pvr2_hdw_commit_ctl_internal(struct pvr2_hdw *hdw);
+
+
+#endif /* __PVRUSB2_HDW_INTERNAL_H */
+
+/*
+  Stuff for Emacs to see, in order to encourage consistent editing style:
+  *** Local Variables: ***
+  *** mode: c ***
+  *** fill-column: 75 ***
+  *** tab-width: 8 ***
+  *** c-basic-offset: 8 ***
+  *** End: ***
+  */