File: [Development] / linux-2.6-xfs / drivers / media / video / ivtv / ivtv-gpio.c (download)
Revision 1.2, Wed Sep 12 17:09:56 2007 UTC (10 years, 1 month ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.1: +4 -7
lines
Update 2.6.x-xfs to 2.6.23-rc4.
Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:
--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
xfs ioctl __user annotations
commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
mm: Remove slab destructors from kmem_cache_create().
commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
mm: fault feedback #1
commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
mm: merge populate and nopage into fault (fixes nonlinear)
commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
mm: fix fault vs invalidate race for linear mappings
commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
knfsd: exportfs: add exportfs.h header
commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
Freezer: make kernel threads nonfreezable by default
commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
mm: clean up and kernelify shrinker registration
commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
sendfile: remove .sendfile from filesystems that use generic_file_sendfile()
commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
Add suspend-related notifications for CPU hotplug
commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
Fix occurrences of "the the "
commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.
|
/*
gpio functions.
Merging GPIO support into driver:
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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, or
(at your option) any later version.
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
*/
#include "ivtv-driver.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include <media/tuner.h>
/*
* GPIO assignment of Yuan MPG600/MPG160
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN1 IN0 AM3 AM2 AM1 AM0
* INPUT DM1 DM0
*
* IN* : Input selection
* IN1 IN0
* 1 1 N/A
* 1 0 Line
* 0 1 N/A
* 0 0 Tuner
*
* AM* : Audio Mode
* AM3 0: Normal 1: Mixed(Sub+Main channel)
* AM2 0: Subchannel 1: Main channel
* AM1 0: Stereo 1: Mono
* AM0 0: Normal 1: Mute
*
* DM* : Detected tuner audio Mode
* DM1 0: Stereo 1: Mono
* DM0 0: Multiplex 1: Normal
*
* GPIO Initial Settings
* MPG600 MPG160
* DIR 0x3080 0x7080
* OUTPUT 0x000C 0x400C
*
* Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
* for analyzing GPIO of MPG160.
*
*****************************************************************************
*
* GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
*
* bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
* OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1
* INPUT
*
* IN* : Input selection
* IN0 IN1 IN2
* * 1 * Mute
* 0 0 0 Line-In
* 1 0 0 TV Tuner Audio
* 0 0 1 FM Audio
* 1 0 1 Mute
*
* AM* : Audio Mode
* AM0 AM1 AM2
* 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
* 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP)
* 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo)
* 0 1 1 TV Tuner Audio: mute
* 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono)
*
* BR* : Audio Sample Rate (BR stands for bitrate for some reason)
* BR0 BR1
* 0 0 32 kHz
* 0 1 44.1 kHz
* 1 0 48 kHz
*
* DM* : Detected tuner audio Mode
* Unknown currently
*
* Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
* AVerMedia for providing the GPIO information used to add support
* for the M179 cards.
*/
/********************* GPIO stuffs *********************/
/* GPIO registers */
#define IVTV_REG_GPIO_IN 0x9008
#define IVTV_REG_GPIO_OUT 0x900c
#define IVTV_REG_GPIO_DIR 0x9020
void ivtv_reset_ir_gpio(struct ivtv *itv)
{
int curdir, curout;
if (itv->card->type != IVTV_CARD_PVR_150)
return;
IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
curout = read_reg(IVTV_REG_GPIO_OUT);
curdir = read_reg(IVTV_REG_GPIO_DIR);
curdir |= 0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
curout = (curout & ~0xF) | 1;
write_reg(curout, IVTV_REG_GPIO_OUT);
/* We could use something else for smaller time */
schedule_timeout_interruptible(msecs_to_jiffies(1));
curout |= 2;
write_reg(curout, IVTV_REG_GPIO_OUT);
curdir &= ~0x80;
write_reg(curdir, IVTV_REG_GPIO_DIR);
}
#ifdef HAVE_XC3028
int ivtv_reset_tuner_gpio(enum v4l2_tuner_type mode, void *priv, int ptr)
{
int curdir, curout;
struct ivtv *itv = (struct ivtv *) priv;
if (itv->card->type != IVTV_CARD_PG600V2 || itv->options.tuner != TUNER_XCEIVE_XC3028)
return -EINVAL;
IVTV_INFO("Resetting tuner\n");
curout = read_reg(IVTV_REG_GPIO_OUT);
curdir = read_reg(IVTV_REG_GPIO_DIR);
curdir |= (1 << 12); /* GPIO bit 12 */
curout &= ~(1 << 12);
write_reg(curout, IVTV_REG_GPIO_OUT);
schedule_timeout_interruptible(msecs_to_jiffies(1));
curout |= (1 << 12);
write_reg(curout, IVTV_REG_GPIO_OUT);
schedule_timeout_interruptible(msecs_to_jiffies(1));
return 0;
}
#endif
void ivtv_gpio_init(struct ivtv *itv)
{
if (itv->card->gpio_init.direction == 0)
return;
IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
/* init output data then direction */
write_reg(itv->card->gpio_init.initial_value, IVTV_REG_GPIO_OUT);
write_reg(itv->card->gpio_init.direction, IVTV_REG_GPIO_DIR);
}
static struct v4l2_queryctrl gpio_ctrl_mute = {
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
.flags = 0,
};
int ivtv_gpio(struct ivtv *itv, unsigned int command, void *arg)
{
struct v4l2_tuner *tuner = arg;
struct v4l2_control *ctrl = arg;
struct v4l2_routing *route = arg;
u16 mask, data;
switch (command) {
case VIDIOC_INT_AUDIO_CLOCK_FREQ:
mask = itv->card->gpio_audio_freq.mask;
switch (*(u32 *)arg) {
case 32000:
data = itv->card->gpio_audio_freq.f32000;
break;
case 44100:
data = itv->card->gpio_audio_freq.f44100;
break;
case 48000:
default:
data = itv->card->gpio_audio_freq.f48000;
break;
}
break;
case VIDIOC_G_TUNER:
mask = itv->card->gpio_audio_detect.mask;
if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
tuner->rxsubchans = V4L2_TUNER_MODE_STEREO |
V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
else
tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
return 0;
case VIDIOC_S_TUNER:
mask = itv->card->gpio_audio_mode.mask;
switch (tuner->audmode) {
case V4L2_TUNER_MODE_LANG1:
data = itv->card->gpio_audio_mode.lang1;
break;
case V4L2_TUNER_MODE_LANG2:
data = itv->card->gpio_audio_mode.lang2;
break;
case V4L2_TUNER_MODE_MONO:
data = itv->card->gpio_audio_mode.mono;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
default:
data = itv->card->gpio_audio_mode.stereo;
break;
}
break;
case AUDC_SET_RADIO:
mask = itv->card->gpio_audio_input.mask;
data = itv->card->gpio_audio_input.radio;
break;
case VIDIOC_S_STD:
mask = itv->card->gpio_audio_input.mask;
data = itv->card->gpio_audio_input.tuner;
break;
case VIDIOC_INT_S_AUDIO_ROUTING:
if (route->input > 2)
return -EINVAL;
mask = itv->card->gpio_audio_input.mask;
switch (route->input) {
case 0:
data = itv->card->gpio_audio_input.tuner;
break;
case 1:
data = itv->card->gpio_audio_input.linein;
break;
case 2:
default:
data = itv->card->gpio_audio_input.radio;
break;
}
break;
case VIDIOC_G_CTRL:
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
mask = itv->card->gpio_audio_mute.mask;
data = itv->card->gpio_audio_mute.mute;
ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
return 0;
case VIDIOC_S_CTRL:
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
mask = itv->card->gpio_audio_mute.mask;
data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
break;
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *qc = arg;
if (qc->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
*qc = gpio_ctrl_mute;
return 0;
}
case VIDIOC_LOG_STATUS:
IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
read_reg(IVTV_REG_GPIO_IN));
return 0;
case VIDIOC_INT_S_VIDEO_ROUTING:
if (route->input > 2) /* 0:Tuner 1:Composite 2:S-Video */
return -EINVAL;
mask = itv->card->gpio_video_input.mask;
if (route->input == 0)
data = itv->card->gpio_video_input.tuner;
else if (route->input == 1)
data = itv->card->gpio_video_input.composite;
else
data = itv->card->gpio_video_input.svideo;
break;
default:
return -EINVAL;
}
if (mask)
write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
return 0;
}
![[BACK]](/icons/back.gif){kind=icon}
Return to ivtv-gpio.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [Development] / linux-2.6-xfs / drivers / media / video / ivtv