Revision 1c89fe3b51a2f8068f2f9faa9c48584151416583 authored by David Henningsson on 12 December 2011, 06:01:17 UTC, committed by Takashi Iwai on 12 December 2011, 09:41:36 UTC
For the Asus 1101HA, reporting position by reading the DMA position buffer map seems unstable and often wrong. The reporter says that position_fix=LPIB works much better (although not 100%, but this is probably due to other issues). The controller chip is an Intel Poulsbo 8086:811b (rev 07) controller, and complete alsa-info is available here: https://launchpadlibrarian.net/86691768/alsa-info.txt.1TNwyE5Ea7 Cc: stable@kernel.org (3.0+) BugLink: http://bugs.launchpad.net/bugs/825709 Tested-by: Stefano Lodi Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent 0a34b42
v4l2-mediabus.h
/*
* Media Bus API header
*
* Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef V4L2_MEDIABUS_H
#define V4L2_MEDIABUS_H
#include <linux/v4l2-mediabus.h>
/* Parallel flags */
/*
* Can the client run in master or in slave mode. By "Master mode" an operation
* mode is meant, when the client (e.g., a camera sensor) is producing
* horizontal and vertical synchronisation. In "Slave mode" the host is
* providing these signals to the slave.
*/
#define V4L2_MBUS_MASTER (1 << 0)
#define V4L2_MBUS_SLAVE (1 << 1)
/*
* Signal polarity flags
* Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
* V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
* configuration of hardware that uses [HV]REF signals
*/
#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2)
#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3)
#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4)
#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5)
#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6)
#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7)
#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8)
#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9)
/* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10)
/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11)
/* Serial flags */
/* How many lanes the client can use */
#define V4L2_MBUS_CSI2_1_LANE (1 << 0)
#define V4L2_MBUS_CSI2_2_LANE (1 << 1)
#define V4L2_MBUS_CSI2_3_LANE (1 << 2)
#define V4L2_MBUS_CSI2_4_LANE (1 << 3)
/* On which channels it can send video data */
#define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4)
#define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5)
#define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6)
#define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7)
/* Does it support only continuous or also non-continuous clock mode */
#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8)
#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9)
#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \
V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \
V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3)
/**
* v4l2_mbus_type - media bus type
* @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync
* @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can
* also be used for BT.1120
* @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface
*/
enum v4l2_mbus_type {
V4L2_MBUS_PARALLEL,
V4L2_MBUS_BT656,
V4L2_MBUS_CSI2,
};
/**
* v4l2_mbus_config - media bus configuration
* @type: in: interface type
* @flags: in / out: configuration flags, depending on @type
*/
struct v4l2_mbus_config {
enum v4l2_mbus_type type;
unsigned int flags;
};
static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
{
pix_fmt->width = mbus_fmt->width;
pix_fmt->height = mbus_fmt->height;
pix_fmt->field = mbus_fmt->field;
pix_fmt->colorspace = mbus_fmt->colorspace;
}
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format *pix_fmt,
enum v4l2_mbus_pixelcode code)
{
mbus_fmt->width = pix_fmt->width;
mbus_fmt->height = pix_fmt->height;
mbus_fmt->field = pix_fmt->field;
mbus_fmt->colorspace = pix_fmt->colorspace;
mbus_fmt->code = code;
}
#endif
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...