media fixes for v4.20-rc4

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Merge tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - Revert a dt-bindings patch whose driver didn't make for 4.20

 - fix a kernel oops at vicodec driver

 - fix a frame overflow at gspca with was causing regressions on some
   cameras, making them to not work

 - use the proper type for wait_queue head

 - make media request API compatible with 32-bit userspace on 64-bit
   kernel

 - fix a regression on Kernel 4.19 at dvb-pll

 - don't use SPDX headers yet for GFDL

* tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: mediactl docs: Fix licensing message
  media: dvb-pll: don't re-validate tuner frequencies
  media: dvb-pll: fix tuner frequency ranges
  media: Revert "media: dt-bindings: Document the Rockchip VPU bindings"
  media: gspca: fix frame overflow error
  media: vicodec: fix memchr() kernel oops
  media: cedrus: add action item to the TODO
  media: media-request: Add compat ioctl
  media: Use wait_queue_head_t for media_request
This commit is contained in:
Linus Torvalds 2018-12-03 11:29:20 -08:00
commit 0072a0c14d
14 changed files with 240 additions and 101 deletions

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@ -1,29 +0,0 @@
device-tree bindings for rockchip VPU codec
Rockchip (Video Processing Unit) present in various Rockchip platforms,
such as RK3288 and RK3399.
Required properties:
- compatible: value should be one of the following
"rockchip,rk3288-vpu";
"rockchip,rk3399-vpu";
- interrupts: encoding and decoding interrupt specifiers
- interrupt-names: should be "vepu" and "vdpu"
- clocks: phandle to VPU aclk, hclk clocks
- clock-names: should be "aclk" and "hclk"
- power-domains: phandle to power domain node
- iommus: phandle to a iommu node
Example:
SoC-specific DT entry:
vpu: video-codec@ff9a0000 {
compatible = "rockchip,rk3288-vpu";
reg = <0x0 0xff9a0000 0x0 0x800>;
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "vepu", "vdpu";
clocks = <&cru ACLK_VCODEC>, <&cru HCLK_VCODEC>;
clock-names = "aclk", "hclk";
power-domains = <&power RK3288_PD_VIDEO>;
iommus = <&vpu_mmu>;
};

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _media_ioc_request_alloc:

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _media_request_ioc_queue:

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _media_request_ioc_reinit:

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _media-request-api:

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _request-func-close:

View File

@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _request-func-ioctl:

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@ -1,4 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. This file is dual-licensed: you can use it either under the terms
.. of the GPL or the GFDL 1.1+ license, at your option. Note that this
.. dual licensing only applies to this file, and not this project as a
.. whole.
..
.. a) This file 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 file 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.
..
.. Or, alternatively,
..
.. b) Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GPL-2.0 OR GFDL-1.1-or-later WITH no-invariant-sections
.. _request-func-poll:

View File

@ -80,8 +80,8 @@ struct dvb_pll_desc {
static const struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
.name = "Thomson dtt7579",
.min = 177000000,
.max = 858000000,
.min = 177 * MHz,
.max = 858 * MHz,
.iffreq= 36166667,
.sleepdata = (u8[]){ 2, 0xb4, 0x03 },
.count = 4,
@ -102,8 +102,8 @@ static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
.name = "Thomson dtt759x",
.min = 177000000,
.max = 896000000,
.min = 177 * MHz,
.max = 896 * MHz,
.set = thomson_dtt759x_bw,
.iffreq= 36166667,
.sleepdata = (u8[]){ 2, 0x84, 0x03 },
@ -126,8 +126,8 @@ static void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = {
.name = "Thomson dtt7520x",
.min = 185000000,
.max = 900000000,
.min = 185 * MHz,
.max = 900 * MHz,
.set = thomson_dtt7520x_bw,
.iffreq = 36166667,
.count = 7,
@ -144,8 +144,8 @@ static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = {
static const struct dvb_pll_desc dvb_pll_lg_z201 = {
.name = "LG z201",
.min = 174000000,
.max = 862000000,
.min = 174 * MHz,
.max = 862 * MHz,
.iffreq= 36166667,
.sleepdata = (u8[]){ 2, 0xbc, 0x03 },
.count = 5,
@ -160,8 +160,8 @@ static const struct dvb_pll_desc dvb_pll_lg_z201 = {
static const struct dvb_pll_desc dvb_pll_unknown_1 = {
.name = "unknown 1", /* used by dntv live dvb-t */
.min = 174000000,
.max = 862000000,
.min = 174 * MHz,
.max = 862 * MHz,
.iffreq= 36166667,
.count = 9,
.entries = {
@ -182,8 +182,8 @@ static const struct dvb_pll_desc dvb_pll_unknown_1 = {
*/
static const struct dvb_pll_desc dvb_pll_tua6010xs = {
.name = "Infineon TUA6010XS",
.min = 44250000,
.max = 858000000,
.min = 44250 * kHz,
.max = 858 * MHz,
.iffreq= 36125000,
.count = 3,
.entries = {
@ -196,8 +196,8 @@ static const struct dvb_pll_desc dvb_pll_tua6010xs = {
/* Panasonic env57h1xd5 (some Philips PLL ?) */
static const struct dvb_pll_desc dvb_pll_env57h1xd5 = {
.name = "Panasonic ENV57H1XD5",
.min = 44250000,
.max = 858000000,
.min = 44250 * kHz,
.max = 858 * MHz,
.iffreq= 36125000,
.count = 4,
.entries = {
@ -220,8 +220,8 @@ static void tda665x_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_tda665x = {
.name = "Philips TDA6650/TDA6651",
.min = 44250000,
.max = 858000000,
.min = 44250 * kHz,
.max = 858 * MHz,
.set = tda665x_bw,
.iffreq= 36166667,
.initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
@ -254,8 +254,8 @@ static void tua6034_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_tua6034 = {
.name = "Infineon TUA6034",
.min = 44250000,
.max = 858000000,
.min = 44250 * kHz,
.max = 858 * MHz,
.iffreq= 36166667,
.count = 3,
.set = tua6034_bw,
@ -278,8 +278,8 @@ static void tded4_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_tded4 = {
.name = "ALPS TDED4",
.min = 47000000,
.max = 863000000,
.min = 47 * MHz,
.max = 863 * MHz,
.iffreq= 36166667,
.set = tded4_bw,
.count = 4,
@ -296,8 +296,8 @@ static const struct dvb_pll_desc dvb_pll_tded4 = {
*/
static const struct dvb_pll_desc dvb_pll_tdhu2 = {
.name = "ALPS TDHU2",
.min = 54000000,
.max = 864000000,
.min = 54 * MHz,
.max = 864 * MHz,
.iffreq= 44000000,
.count = 4,
.entries = {
@ -313,8 +313,8 @@ static const struct dvb_pll_desc dvb_pll_tdhu2 = {
*/
static const struct dvb_pll_desc dvb_pll_samsung_tbmv = {
.name = "Samsung TBMV30111IN / TBMV30712IN1",
.min = 54000000,
.max = 860000000,
.min = 54 * MHz,
.max = 860 * MHz,
.iffreq= 44000000,
.count = 6,
.entries = {
@ -332,8 +332,8 @@ static const struct dvb_pll_desc dvb_pll_samsung_tbmv = {
*/
static const struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
.name = "Philips SD1878",
.min = 950000,
.max = 2150000,
.min = 950 * MHz,
.max = 2150 * MHz,
.iffreq= 249, /* zero-IF, offset 249 is to round up */
.count = 4,
.entries = {
@ -398,8 +398,8 @@ static void opera1_bw(struct dvb_frontend *fe, u8 *buf)
static const struct dvb_pll_desc dvb_pll_opera1 = {
.name = "Opera Tuner",
.min = 900000,
.max = 2250000,
.min = 900 * MHz,
.max = 2250 * MHz,
.initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 },
.initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 },
.iffreq= 0,
@ -445,8 +445,8 @@ static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf)
/* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
.name = "Samsung DTOS403IH102A",
.min = 44250000,
.max = 858000000,
.min = 44250 * kHz,
.max = 858 * MHz,
.iffreq = 36125000,
.count = 8,
.set = samsung_dtos403ih102a_set,
@ -465,8 +465,8 @@ static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
/* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
.name = "Samsung TDTC9251DH0",
.min = 48000000,
.max = 863000000,
.min = 48 * MHz,
.max = 863 * MHz,
.iffreq = 36166667,
.count = 3,
.entries = {
@ -479,8 +479,8 @@ static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
/* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
.name = "Samsung TBDU18132",
.min = 950000,
.max = 2150000, /* guesses */
.min = 950 * MHz,
.max = 2150 * MHz, /* guesses */
.iffreq = 0,
.count = 2,
.entries = {
@ -500,8 +500,8 @@ static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
/* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
.name = "Samsung TBMU24112",
.min = 950000,
.max = 2150000, /* guesses */
.min = 950 * MHz,
.max = 2150 * MHz, /* guesses */
.iffreq = 0,
.count = 2,
.entries = {
@ -521,8 +521,8 @@ static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
* 822 - 862 1 * 0 0 1 0 0 0 0x88 */
static const struct dvb_pll_desc dvb_pll_alps_tdee4 = {
.name = "ALPS TDEE4",
.min = 47000000,
.max = 862000000,
.min = 47 * MHz,
.max = 862 * MHz,
.iffreq = 36125000,
.count = 4,
.entries = {
@ -537,8 +537,8 @@ static const struct dvb_pll_desc dvb_pll_alps_tdee4 = {
/* CP cur. 50uA, AGC takeover: 103dBuV, PORT3 on */
static const struct dvb_pll_desc dvb_pll_tua6034_friio = {
.name = "Infineon TUA6034 ISDB-T (Friio)",
.min = 90000000,
.max = 770000000,
.min = 90 * MHz,
.max = 770 * MHz,
.iffreq = 57000000,
.initdata = (u8[]){ 4, 0x9a, 0x50, 0xb2, 0x08 },
.sleepdata = (u8[]){ 4, 0x9a, 0x70, 0xb3, 0x0b },
@ -553,8 +553,8 @@ static const struct dvb_pll_desc dvb_pll_tua6034_friio = {
/* Philips TDA6651 ISDB-T, used in Earthsoft PT1 */
static const struct dvb_pll_desc dvb_pll_tda665x_earth_pt1 = {
.name = "Philips TDA6651 ISDB-T (EarthSoft PT1)",
.min = 90000000,
.max = 770000000,
.min = 90 * MHz,
.max = 770 * MHz,
.iffreq = 57000000,
.initdata = (u8[]){ 5, 0x0e, 0x7f, 0xc1, 0x80, 0x80 },
.count = 10,
@ -610,9 +610,6 @@ static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
u32 div;
int i;
if (frequency && (frequency < desc->min || frequency > desc->max))
return -EINVAL;
for (i = 0; i < desc->count; i++) {
if (frequency > desc->entries[i].limit)
continue;
@ -799,7 +796,6 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
struct dvb_pll_priv *priv = NULL;
int ret;
const struct dvb_pll_desc *desc;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
b1 = kmalloc(1, GFP_KERNEL);
if (!b1)
@ -845,18 +841,12 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
strncpy(fe->ops.tuner_ops.info.name, desc->name,
sizeof(fe->ops.tuner_ops.info.name));
switch (c->delivery_system) {
case SYS_DVBS:
case SYS_DVBS2:
case SYS_TURBO:
case SYS_ISDBS:
fe->ops.tuner_ops.info.frequency_min_hz = desc->min * kHz;
fe->ops.tuner_ops.info.frequency_max_hz = desc->max * kHz;
break;
default:
fe->ops.tuner_ops.info.frequency_min_hz = desc->min;
fe->ops.tuner_ops.info.frequency_max_hz = desc->max;
}
dprintk("%s tuner, frequency range: %u...%u\n",
desc->name, desc->min, desc->max);
if (!desc->initdata)
fe->ops.tuner_ops.init = NULL;

View File

@ -238,6 +238,9 @@ static const struct file_operations request_fops = {
.owner = THIS_MODULE,
.poll = media_request_poll,
.unlocked_ioctl = media_request_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = media_request_ioctl,
#endif /* CONFIG_COMPAT */
.release = media_request_close,
};

View File

@ -304,7 +304,8 @@ restart:
for (; p < p_out + sz; p++) {
u32 copy;
p = memchr(p, magic[ctx->comp_magic_cnt], sz);
p = memchr(p, magic[ctx->comp_magic_cnt],
p_out + sz - p);
if (!p) {
ctx->comp_magic_cnt = 0;
break;

View File

@ -426,10 +426,10 @@ void gspca_frame_add(struct gspca_dev *gspca_dev,
/* append the packet to the frame buffer */
if (len > 0) {
if (gspca_dev->image_len + len > gspca_dev->pixfmt.sizeimage) {
if (gspca_dev->image_len + len > PAGE_ALIGN(gspca_dev->pixfmt.sizeimage)) {
gspca_err(gspca_dev, "frame overflow %d > %d\n",
gspca_dev->image_len + len,
gspca_dev->pixfmt.sizeimage);
PAGE_ALIGN(gspca_dev->pixfmt.sizeimage));
packet_type = DISCARD_PACKET;
} else {
/* !! image is NULL only when last pkt is LAST or DISCARD
@ -1297,18 +1297,19 @@ static int gspca_queue_setup(struct vb2_queue *vq,
unsigned int sizes[], struct device *alloc_devs[])
{
struct gspca_dev *gspca_dev = vb2_get_drv_priv(vq);
unsigned int size = PAGE_ALIGN(gspca_dev->pixfmt.sizeimage);
if (*nplanes)
return sizes[0] < gspca_dev->pixfmt.sizeimage ? -EINVAL : 0;
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
sizes[0] = gspca_dev->pixfmt.sizeimage;
sizes[0] = size;
return 0;
}
static int gspca_buffer_prepare(struct vb2_buffer *vb)
{
struct gspca_dev *gspca_dev = vb2_get_drv_priv(vb->vb2_queue);
unsigned long size = gspca_dev->pixfmt.sizeimage;
unsigned long size = PAGE_ALIGN(gspca_dev->pixfmt.sizeimage);
if (vb2_plane_size(vb, 0) < size) {
gspca_err(gspca_dev, "buffer too small (%lu < %lu)\n",

View File

@ -5,3 +5,8 @@ Before this stateless decoder driver can leave the staging area:
* Userspace support for the Request API needs to be reviewed;
* Another stateless decoder driver should be submitted;
* At least one stateless encoder driver should be submitted.
* When queueing a request containing references to I frames, the
refcount of the memory for those I frames needs to be incremented
and decremented when the request is completed. This will likely
require some help from vb2. The driver should fail the request
if the memory/buffer is gone.

View File

@ -68,7 +68,7 @@ struct media_request {
unsigned int access_count;
struct list_head objects;
unsigned int num_incomplete_objects;
struct wait_queue_head poll_wait;
wait_queue_head_t poll_wait;
spinlock_t lock;
};