android_kernel_xiaomi_sm8350/drivers/media/video/pvrusb2/pvrusb2-devattr.h
Mike Isely 4ca7f70928 V4L/DVB (6708): pvrusb2: Expand comment in device attributes description
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25 19:03:07 -02:00

122 lines
4.0 KiB
C

/*
*
* $Id$
*
* 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_DEVATTR_H
#define __PVRUSB2_DEVATTR_H
#include <linux/mod_devicetable.h>
#include <linux/videodev2.h>
/*
This header defines structures used to describe attributes of a device.
*/
struct pvr2_string_table {
const char **lst;
unsigned int cnt;
};
#define PVR2_ROUTING_SCHEME_HAUPPAUGE 0
#define PVR2_ROUTING_SCHEME_GOTVIEW 1
/* This describes a particular hardware type (except for the USB device ID
which must live in a separate structure due to environmental
constraints). See the top of pvrusb2-hdw.c for where this is
instantiated. */
struct pvr2_device_desc {
/* Single line text description of hardware */
const char *description;
/* Single token identifier for hardware */
const char *shortname;
/* List of additional client modules we need to load */
struct pvr2_string_table client_modules;
/* List of FX2 firmware file names we should search; if empty then
FX2 firmware check / load is skipped and we assume the device
was initialized from internal ROM. */
struct pvr2_string_table fx2_firmware;
/* Signal routing scheme used by device, contains one of
PVR2_ROUTING_SCHEME_XXX. Schemes have to be defined as we
encounter them. This is an arbitrary integer scheme id; its
meaning is contained entirely within the driver and is
interpreted by logic which must send commands to the chip-level
drivers (search for things which touch this field). */
unsigned int signal_routing_scheme;
/* V4L tuner type ID to use with this device (only used if the
driver could not discover the type any other way). */
int default_tuner_type;
/* Initial standard bits to use for this device, if not zero.
Anything set here is also implied as an available standard.
Note: This is ignored if overridden on the module load line via
the video_std module option. */
v4l2_std_id default_std_mask;
/* If set, we don't bother trying to load cx23416 firmware. */
char flag_skip_cx23416_firmware;
/* Device has a hauppauge eeprom which we can interrogate. */
char flag_has_hauppauge_rom;
/* Device does not require a powerup command to be issued. */
char flag_no_powerup;
/* Device has a cx25840 - this enables special additional logic to
handle it. */
char flag_has_cx25840;
/* Device has a wm8775 - this enables special additional logic to
ensure that it is found. */
char flag_has_wm8775;
/* Device has IR hardware that can be faked into looking like a
normal Hauppauge i2c IR receiver. This is currently very
specific to the 24xxx device, where Hauppauge had replaced their
'standard' I2C IR receiver with a bunch of FPGA logic controlled
directly via the FX2. Turning this on tells the pvrusb2 driver
to virtualize the presence of the non-existant IR receiver chip and
implement the virtual receiver in terms of appropriate FX2
commands. */
char flag_has_hauppauge_custom_ir;
};
extern const struct pvr2_device_desc pvr2_device_descriptions[];
extern struct usb_device_id pvr2_device_table[];
extern const unsigned int pvr2_device_count;
#endif /* __PVRUSB2_HDW_INTERNAL_H */
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*/