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authorMichele Paolino <m.paolino@virtualopensystems.com>2023-11-14 18:07:09 +0100
committerMichele Paolino <m.paolino@virtualopensystems.com>2023-12-13 10:27:55 +0000
commitb05512b81bbe1c90b71da9c571e742f162fc0575 (patch)
treedea9b67ff4dae3e227943382dd7b0b0565dc39d1 /meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c
parent31d4011207be008333c1945f18bb922b13816462 (diff)
CAN, GPIO, RNG vhost-devices for virtio-loopback [v6]quillback_16.92.0quillback/16.92.016.92.0
This patch adds key components of the viritio-loopback architecture: - kernel-module-virtio-loopback: the virtio loopback kernel driver - CAN, GPIO and RNG vhost-user devices from meta-virtualization (commit a215d8320edee0a317a6511e7e2efa5bba867486) Notes: - libgpiod, comes from meta-openembedded commit 3029554ceb0b0bb52a8d8ec3f0a75c5113662fe6 - cleaned eg-virt from unused drivers (kernel-module-virtio-video) Bug-AGL: SPEC-4834 V2 changes: - related meta-virtualization commit message added in the cover letter - updated libgpio recipe to v2.1 - SPEC reference added in cover letter v3 - add vhost-device-can preliminary version. This is placed here with the objective to share the link when proposing the new device to the rust-vmm/vhost-device community - remove cargo-update-recipe-crates includes in bb file because it is not supported by the rust mixin layer - vhost-device folder README changes v4 - fixed libgpiod required version - tested ref hw and qemu x86/64 builds - vsock, scsi and i2c rust devices removed from the build as they are not yet integrated in virtiod-loopback - cleaned-up kernel modules kernel-module-virtio-video and gstreamer1.0-plugins-bad - virtio-loopback-driver set to 2-or-later v5 - Merge with Jan-Simon version v4: - remove broken kernel-module-virtio-video - use FEATURE_PACKAGES instead of IMAGE_INSTALL:append - rename virtio-loopback-driver.bb to kernel-module-virtio-loopback_git.bb for consistency v6 - adding version in the title - removing MODULE_GIT_REPOSITORY in kernel-modules Change-Id: Id6cc58e777b9edad03b6c50d0dddaac8601edeaf Signed-off-by: Michele Paolino <m.paolino@virtualopensystems.com> Signed-off-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Diffstat (limited to 'meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c')
-rw-r--r--meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c460
1 files changed, 0 insertions, 460 deletions
diff --git a/meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c b/meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c
deleted file mode 100644
index fc815b18..00000000
--- a/meta-egvirt/recipes-kernel/kernel-module-virtio-video/files/virtio_video_caps.c
+++ /dev/null
@@ -1,460 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/* Driver for virtio video device.
- *
- * Copyright 2020 OpenSynergy GmbH.
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf2-dma-sg.h>
-
-#include "virtio_video.h"
-
-static void virtio_video_free_frame_rates(struct video_format_frame *frame)
-{
- kfree(frame->frame_rates);
-}
-
-static void virtio_video_free_frames(struct video_format *fmt)
-{
- size_t idx = 0;
-
- for (idx = 0; idx < fmt->desc.num_frames; idx++)
- virtio_video_free_frame_rates(&fmt->frames[idx]);
- kfree(fmt->frames);
-}
-
-static void virtio_video_free_fmt(struct list_head *fmts_list)
-{
- struct video_format *fmt, *tmp;
-
- list_for_each_entry_safe(fmt, tmp, fmts_list, formats_list_entry) {
- list_del(&fmt->formats_list_entry);
- virtio_video_free_frames(fmt);
- kfree(fmt);
- }
-}
-
-static void virtio_video_free_fmts(struct virtio_video_device *vvd)
-{
- virtio_video_free_fmt(&vvd->input_fmt_list);
- virtio_video_free_fmt(&vvd->output_fmt_list);
-}
-
-static void virtio_video_copy_fmt_range(struct virtio_video_format_range *d_rge,
- struct virtio_video_format_range *s_rge)
-{
- d_rge->min = le32_to_cpu(s_rge->min);
- d_rge->max = le32_to_cpu(s_rge->max);
- d_rge->step = le32_to_cpu(s_rge->step);
-}
-
-static size_t
-virtio_video_parse_virtio_frame_rate(struct virtio_video_device *vvd,
- struct virtio_video_format_range *f_rate,
- void *buf)
-{
- struct virtio_video_format_range *virtio_frame_rate;
-
- virtio_frame_rate = buf;
- virtio_video_copy_fmt_range(f_rate, virtio_frame_rate);
-
- return sizeof(struct virtio_video_format_range);
-}
-
-static size_t virtio_video_parse_virtio_frame(struct virtio_video_device *vvd,
- struct video_format_frame *frm,
- void *buf)
-{
- struct virtio_video_format_frame *virtio_frame;
- struct virtio_video_format_frame *frame = &frm->frame;
- struct virtio_video_format_range *rate;
- size_t idx, offset, extra_size;
-
- virtio_frame = buf;
-
- virtio_video_copy_fmt_range(&frame->width, &virtio_frame->width);
- virtio_video_copy_fmt_range(&frame->height, &virtio_frame->height);
-
- frame->num_rates = le32_to_cpu(virtio_frame->num_rates);
- frm->frame_rates = kcalloc(frame->num_rates,
- sizeof(struct virtio_video_format_range),
- GFP_KERNEL);
-
- offset = sizeof(struct virtio_video_format_frame);
- for (idx = 0; idx < frame->num_rates; idx++) {
- rate = &frm->frame_rates[idx];
- extra_size =
- virtio_video_parse_virtio_frame_rate(vvd, rate,
- buf + offset);
- if (extra_size == 0) {
- kfree(frm->frame_rates);
- v4l2_err(&vvd->v4l2_dev,
- "failed to parse frame rate\n");
- return 0;
- }
- offset += extra_size;
- }
-
- return offset;
-}
-
-static size_t virtio_video_parse_virtio_fmt(struct virtio_video_device *vvd,
- struct video_format *fmt, void *buf)
-{
- struct virtio_video_format_desc *virtio_fmt_desc;
- struct virtio_video_format_desc *fmt_desc;
- struct video_format_frame *frame;
- size_t idx, offset, extra_size;
-
- virtio_fmt_desc = buf;
- fmt_desc = &fmt->desc;
-
- fmt_desc->format =
- virtio_video_format_to_v4l2
- (le32_to_cpu(virtio_fmt_desc->format));
- fmt_desc->mask = le64_to_cpu(virtio_fmt_desc->mask);
- fmt_desc->planes_layout = le32_to_cpu(virtio_fmt_desc->planes_layout);
-
- fmt_desc->num_frames = le32_to_cpu(virtio_fmt_desc->num_frames);
- fmt->frames = kcalloc(fmt_desc->num_frames,
- sizeof(struct video_format_frame),
- GFP_KERNEL);
-
- offset = sizeof(struct virtio_video_format_desc);
- for (idx = 0; idx < fmt_desc->num_frames; idx++) {
- frame = &fmt->frames[idx];
- extra_size =
- virtio_video_parse_virtio_frame(vvd, frame,
- buf + offset);
- if (extra_size == 0) {
- kfree(fmt->frames);
- v4l2_err(&vvd->v4l2_dev, "failed to parse frame\n");
- return 0;
- }
- offset += extra_size;
- }
-
- return offset;
-}
-
-int virtio_video_parse_virtio_capability(struct virtio_video_device *vvd,
- void *resp_buf,
- struct list_head *ret_fmt_list,
- uint32_t *ret_num_fmts)
-{
- struct virtio_video_query_capability_resp *resp = resp_buf;
- struct video_format *fmt;
- uint32_t fmt_count;
- int fmt_idx;
- size_t offset;
- int ret;
-
- if (!resp || ret_fmt_list == NULL || ret_num_fmts == NULL) {
- v4l2_err(&vvd->v4l2_dev, "invalid arguments!\n");
- return -EINVAL;
- }
-
- if (le32_to_cpu(resp->num_descs) <= 0) {
- v4l2_err(&vvd->v4l2_dev, "invalid capability response\n");
- return -EINVAL;
- }
-
- fmt_count = le32_to_cpu(resp->num_descs);
- offset = sizeof(struct virtio_video_query_capability_resp);
-
- for (fmt_idx = 0; fmt_idx < fmt_count; fmt_idx++) {
- size_t fmt_size = 0;
-
- fmt = kzalloc(sizeof(*fmt), GFP_KERNEL);
- if (!fmt) {
- ret = -ENOMEM;
- goto alloc_err;
- }
-
- fmt_size = virtio_video_parse_virtio_fmt(vvd, fmt,
- resp_buf + offset);
- if (fmt_size == 0) {
- v4l2_err(&vvd->v4l2_dev, "failed to parse fmt\n");
- ret = -ENOENT;
- goto parse_fmt_err;
- }
- offset += fmt_size;
- list_add(&fmt->formats_list_entry, ret_fmt_list);
- }
-
- *ret_num_fmts = fmt_count;
- return 0;
-
-parse_fmt_err:
- kfree(fmt);
-alloc_err:
- virtio_video_free_fmts(vvd);
- return ret;
-}
-
-int virtio_video_parse_virtio_capabilities(struct virtio_video_device *vvd,
- void *input_buf, void *output_buf)
-{
- int ret;
-
- if (input_buf) {
- ret = virtio_video_parse_virtio_capability(vvd, input_buf,
- &vvd->input_fmt_list,
- &vvd->num_input_fmts);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev,
- "Failed to parse input capability: %d\n",
- ret);
- return ret;
- }
- }
-
- if (output_buf) {
- ret = virtio_video_parse_virtio_capability(vvd, output_buf,
- &vvd->output_fmt_list,
- &vvd->num_output_fmts);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev,
- "Failed to parse output capability: %d\n",
- ret);
- return ret;
- }
- }
-
- return 0;
-}
-
-void virtio_video_clean_capability(struct virtio_video_device *vvd)
-{
- virtio_video_free_fmts(vvd);
-}
-
-static void
-virtio_video_free_control_fmt_data(struct video_control_fmt_data *data)
-{
- kfree(data->entries);
- kfree(data);
-}
-
-static void virtio_video_free_control_formats(struct virtio_video_device *vvd)
-{
- struct video_control_format *c_fmt, *tmp;
-
- list_for_each_entry_safe(c_fmt, tmp, &vvd->controls_fmt_list,
- controls_list_entry) {
- list_del(&c_fmt->controls_list_entry);
- virtio_video_free_control_fmt_data(c_fmt->profile);
- virtio_video_free_control_fmt_data(c_fmt->level);
- kfree(c_fmt);
- }
-}
-
-static int virtio_video_parse_control_levels(struct virtio_video_device *vvd,
- struct video_control_format *fmt)
-{
- int idx, ret;
- struct virtio_video_query_control_resp *resp_buf;
- struct virtio_video_query_control_resp_level *l_resp_buf;
- struct video_control_fmt_data *level;
- enum virtio_video_format virtio_format;
- uint32_t *virtio_levels;
- uint32_t num_levels, mask = 0;
- int max = 0, min = UINT_MAX;
- size_t resp_size;
-
- resp_size = vvd->max_resp_len;
-
- virtio_format = virtio_video_v4l2_format_to_virtio(fmt->format);
-
- resp_buf = kzalloc(resp_size, GFP_KERNEL);
- if (IS_ERR(resp_buf)) {
- ret = PTR_ERR(resp_buf);
- goto lvl_err;
- }
-
- ret = virtio_video_query_control_level(vvd, resp_buf, resp_size,
- virtio_format);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev, "failed to query level\n");
- goto lvl_err;
- }
-
- l_resp_buf = (void *)((char *)resp_buf + sizeof(*resp_buf));
- num_levels = le32_to_cpu(l_resp_buf->num);
- if (num_levels == 0)
- goto lvl_err;
-
- fmt->level = kzalloc(sizeof(*level), GFP_KERNEL);
- if (!fmt->level) {
- ret = -ENOMEM;
- goto lvl_err;
- }
-
- level = fmt->level;
- level->entries = kcalloc(num_levels, sizeof(uint32_t), GFP_KERNEL);
- if (!level->entries) {
- kfree(fmt->level);
- ret = -ENOMEM;
- goto lvl_err;
- }
-
- virtio_levels = (void *)((char *)l_resp_buf + sizeof(*l_resp_buf));
-
- for (idx = 0; idx < num_levels; idx++) {
- level->entries[idx] =
- virtio_video_level_to_v4l2
- (le32_to_cpu(virtio_levels[idx]));
-
- mask = mask | (1 << level->entries[idx]);
- if (level->entries[idx] > max)
- max = level->entries[idx];
- if (level->entries[idx] < min)
- min = level->entries[idx];
- }
- level->min = min;
- level->max = max;
- level->num = num_levels;
- level->skip_mask = ~mask;
-
-lvl_err:
- kfree(resp_buf);
-
- return ret;
-}
-
-static int virtio_video_parse_control_profiles(struct virtio_video_device *vvd,
- struct video_control_format *fmt)
-{
- int idx, ret;
- struct virtio_video_query_control_resp *resp_buf;
- struct virtio_video_query_control_resp_profile *p_resp_buf;
- struct video_control_fmt_data *profile;
- uint32_t virtio_format, num_profiles, mask = 0;
- uint32_t *virtio_profiles;
- int max = 0, min = UINT_MAX;
- size_t resp_size;
-
- resp_size = vvd->max_resp_len;
- virtio_format = virtio_video_v4l2_format_to_virtio(fmt->format);
- resp_buf = kzalloc(resp_size, GFP_KERNEL);
- if (IS_ERR(resp_buf)) {
- ret = PTR_ERR(resp_buf);
- goto prf_err;
- }
-
- ret = virtio_video_query_control_profile(vvd, resp_buf, resp_size,
- virtio_format);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev, "failed to query profile\n");
- goto prf_err;
- }
-
- p_resp_buf = (void *)((char *)resp_buf + sizeof(*resp_buf));
- num_profiles = le32_to_cpu(p_resp_buf->num);
- if (num_profiles == 0)
- goto prf_err;
-
- fmt->profile = kzalloc(sizeof(*profile), GFP_KERNEL);
- if (!fmt->profile) {
- ret = -ENOMEM;
- goto prf_err;
- }
-
- profile = fmt->profile;
- profile->entries = kcalloc(num_profiles, sizeof(uint32_t), GFP_KERNEL);
- if (!profile->entries) {
- kfree(fmt->profile);
- ret = -ENOMEM;
- goto prf_err;
- }
-
- virtio_profiles = (void *)((char *)p_resp_buf + sizeof(*p_resp_buf));
-
- for (idx = 0; idx < num_profiles; idx++) {
- profile->entries[idx] =
- virtio_video_profile_to_v4l2
- (le32_to_cpu(virtio_profiles[idx]));
-
- mask = mask | (1 << profile->entries[idx]);
- if (profile->entries[idx] > max)
- max = profile->entries[idx];
- if (profile->entries[idx] < min)
- min = profile->entries[idx];
- }
- profile->min = min;
- profile->max = max;
- profile->num = num_profiles;
- profile->skip_mask = ~mask;
-
-prf_err:
- kfree(resp_buf);
-
- return ret;
-}
-
-int virtio_video_parse_virtio_control(struct virtio_video_device *vvd)
-{
- struct video_format *fmt;
- struct video_control_format *c_fmt;
- uint32_t virtio_format;
- int ret;
-
- list_for_each_entry(fmt, &vvd->output_fmt_list, formats_list_entry) {
- virtio_format =
- virtio_video_v4l2_format_to_virtio(fmt->desc.format);
- if (virtio_format < VIRTIO_VIDEO_FORMAT_CODED_MIN ||
- virtio_format > VIRTIO_VIDEO_FORMAT_CODED_MAX)
- continue;
-
- c_fmt = kzalloc(sizeof(*c_fmt), GFP_KERNEL);
- if (!c_fmt) {
- ret = -ENOMEM;
- goto parse_ctrl_alloc_err;
- }
-
- c_fmt->format = fmt->desc.format;
-
- ret = virtio_video_parse_control_profiles(vvd, c_fmt);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev,
- "failed to parse control profile\n");
- goto parse_ctrl_prf_err;
- }
-
- ret = virtio_video_parse_control_levels(vvd, c_fmt);
- if (ret) {
- v4l2_err(&vvd->v4l2_dev,
- "failed to parse control level\n");
- goto parse_ctrl_lvl_err;
- }
- list_add(&c_fmt->controls_list_entry, &vvd->controls_fmt_list);
- }
- return 0;
-
-parse_ctrl_lvl_err:
- virtio_video_free_control_fmt_data(c_fmt->profile);
-parse_ctrl_prf_err:
- kfree(c_fmt);
-parse_ctrl_alloc_err:
- virtio_video_free_control_formats(vvd);
-
- return ret;
-}
-
-void virtio_video_clean_control(struct virtio_video_device *vvd)
-{
- virtio_video_free_control_formats(vvd);
-}