android_kernel_xiaomi_sm8350/drivers/media/video/cx18/cx18-controls.c

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/*
* cx18 ioctl control functions
*
* Derived from ivtv-controls.c
*
* Copyright (C) 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 <linux/kernel.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 04:04:11 -04:00
#include <linux/slab.h>
#include "cx18-driver.h"
#include "cx18-cards.h"
#include "cx18-ioctl.h"
#include "cx18-audio.h"
#include "cx18-mailbox.h"
#include "cx18-controls.h"
/* Must be sorted from low to high control ID! */
static const u32 user_ctrls[] = {
V4L2_CID_USER_CLASS,
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
V4L2_CID_AUDIO_VOLUME,
V4L2_CID_AUDIO_BALANCE,
V4L2_CID_AUDIO_BASS,
V4L2_CID_AUDIO_TREBLE,
V4L2_CID_AUDIO_MUTE,
V4L2_CID_AUDIO_LOUDNESS,
0
};
static const u32 *ctrl_classes[] = {
user_ctrls,
cx2341x_mpeg_ctrls,
NULL
};
int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
{
struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
const char *name;
qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
if (qctrl->id == 0)
return -EINVAL;
switch (qctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_USER_CLASS:
return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
default:
if (cx2341x_ctrl_query(&cx->params, qctrl))
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
return 0;
}
strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
qctrl->name[sizeof(qctrl->name) - 1] = 0;
return 0;
}
int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
{
struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
struct v4l2_queryctrl qctrl;
qctrl.id = qmenu->id;
cx18_queryctrl(file, fh, &qctrl);
return v4l2_ctrl_query_menu(qmenu, &qctrl,
cx2341x_ctrl_get_menu(&cx->params, qmenu->id));
}
static int cx18_try_ctrl(struct file *file, void *fh,
struct v4l2_ext_control *vctrl)
{
struct v4l2_queryctrl qctrl;
const char **menu_items = NULL;
int err;
qctrl.id = vctrl->id;
err = cx18_queryctrl(file, fh, &qctrl);
if (err)
return err;
if (qctrl.type == V4L2_CTRL_TYPE_MENU)
menu_items = v4l2_ctrl_get_menu(qctrl.id);
return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
}
static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
{
switch (vctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
default:
CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
return -EINVAL;
}
return 0;
}
static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
{
switch (vctrl->id) {
/* Standard V4L2 controls */
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_HUE:
case V4L2_CID_SATURATION:
case V4L2_CID_CONTRAST:
return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_MUTE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_BASS:
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_LOUDNESS:
return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
default:
CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
return -EINVAL;
}
return 0;
}
static int cx18_setup_vbi_fmt(struct cx18 *cx,
enum v4l2_mpeg_stream_vbi_fmt fmt,
enum v4l2_mpeg_stream_type type)
{
if (!(cx->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
return -EINVAL;
if (atomic_read(&cx->ana_capturing) > 0)
return -EBUSY;
if (fmt != V4L2_MPEG_STREAM_VBI_FMT_IVTV ||
!(type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS ||
type == V4L2_MPEG_STREAM_TYPE_MPEG2_DVD ||
type == V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD)) {
/* Only IVTV fmt VBI insertion & only MPEG-2 PS type streams */
cx->vbi.insert_mpeg = V4L2_MPEG_STREAM_VBI_FMT_NONE;
CX18_DEBUG_INFO("disabled insertion of sliced VBI data into "
"the MPEG stream\n");
return 0;
}
/* Allocate sliced VBI buffers if needed. */
if (cx->vbi.sliced_mpeg_data[0] == NULL) {
int i;
for (i = 0; i < CX18_VBI_FRAMES; i++) {
cx->vbi.sliced_mpeg_data[i] =
kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
if (cx->vbi.sliced_mpeg_data[i] == NULL) {
while (--i >= 0) {
kfree(cx->vbi.sliced_mpeg_data[i]);
cx->vbi.sliced_mpeg_data[i] = NULL;
}
cx->vbi.insert_mpeg =
V4L2_MPEG_STREAM_VBI_FMT_NONE;
CX18_WARN("Unable to allocate buffers for "
"sliced VBI data insertion\n");
return -ENOMEM;
}
}
}
cx->vbi.insert_mpeg = fmt;
CX18_DEBUG_INFO("enabled insertion of sliced VBI data into the MPEG PS,"
"when sliced VBI is enabled\n");
/*
* If our current settings have no lines set for capture, store a valid,
* default set of service lines to capture, in our current settings.
*/
if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
if (cx->is_60hz)
cx->vbi.sliced_in->service_set =
V4L2_SLICED_CAPTION_525;
else
cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
}
return 0;
}
int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
struct v4l2_control ctrl;
if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
int i;
int err = 0;
for (i = 0; i < c->count; i++) {
ctrl.id = c->controls[i].id;
ctrl.value = c->controls[i].value;
err = cx18_g_ctrl(cx, &ctrl);
c->controls[i].value = ctrl.value;
if (err) {
c->error_idx = i;
break;
}
}
return err;
}
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
return cx2341x_ext_ctrls(&cx->params, 0, c, VIDIOC_G_EXT_CTRLS);
return -EINVAL;
}
int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
struct cx18_open_id *id = fh;
struct cx18 *cx = id->cx;
int ret;
struct v4l2_control ctrl;
ret = v4l2_prio_check(&cx->prio, id->prio);
if (ret)
return ret;
if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
int i;
int err = 0;
for (i = 0; i < c->count; i++) {
ctrl.id = c->controls[i].id;
ctrl.value = c->controls[i].value;
err = cx18_s_ctrl(cx, &ctrl);
c->controls[i].value = ctrl.value;
if (err) {
c->error_idx = i;
break;
}
}
return err;
}
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
static u32 freqs[3] = { 44100, 48000, 32000 };
struct cx18_api_func_private priv;
struct cx2341x_mpeg_params p = cx->params;
int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing),
c, VIDIOC_S_EXT_CTRLS);
unsigned int idx;
if (err)
return err;
if (p.video_encoding != cx->params.video_encoding) {
int is_mpeg1 = p.video_encoding ==
V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
struct v4l2_mbus_framefmt fmt;
/* fix videodecoder resolution */
fmt.width = cx->params.width / (is_mpeg1 ? 2 : 1);
fmt.height = cx->params.height;
fmt.code = V4L2_MBUS_FMT_FIXED;
v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &fmt);
}
priv.cx = cx;
priv.s = &cx->streams[id->type];
err = cx2341x_update(&priv, cx18_api_func, &cx->params, &p);
if (!err &&
(cx->params.stream_vbi_fmt != p.stream_vbi_fmt ||
cx->params.stream_type != p.stream_type))
err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt,
p.stream_type);
cx->params = p;
cx->dualwatch_stereo_mode = p.audio_properties & 0x0300;
idx = p.audio_properties & 0x03;
/* The audio clock of the digitizer must match the codec sample
rate otherwise you get some very strange effects. */
if (idx < ARRAY_SIZE(freqs))
cx18_call_all(cx, audio, s_clock_freq, freqs[idx]);
return err;
}
return -EINVAL;
}
int cx18_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
{
struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
int i;
int err = 0;
for (i = 0; i < c->count; i++) {
err = cx18_try_ctrl(file, fh, &c->controls[i]);
if (err) {
c->error_idx = i;
break;
}
}
return err;
}
if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
return cx2341x_ext_ctrls(&cx->params,
atomic_read(&cx->ana_capturing),
c, VIDIOC_TRY_EXT_CTRLS);
return -EINVAL;
}