ExternalVendorCode/openwrt
1
0
Fork 0
mirror of https://github.com/openwrt/openwrt.git synced 2024-12-24 15:56:49 +00:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity
2cd6da257c
openwrt/target/linux/bcm27xx/patches-6.6/950-0240-media-bcm2835-unicam-Fixup-review-comments-from-Hans.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches 
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

216 lines
7.0 KiB
Diff
Raw Blame History

From b0fd872299d7dc874779bafffa99d7272dfa24da Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Tue, 23 Jun 2020 15:14:05 +0100
Subject: [PATCH 0240/1085] media: bcm2835-unicam: Fixup review comments from
Hans.
Updates the driver based on the upstream review comments from
Hans Verkuil at https://patchwork.linuxtv.org/patch/63531/
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
.../media/platform/bcm2835/bcm2835-unicam.c | 70 ++++++++-----------
1 file changed, 31 insertions(+), 39 deletions(-)
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
- * BCM2835 Unicam Capture Driver
+ * BCM283x / BCM271x Unicam Capture Driver
*
* Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd.
*
@@ -573,9 +573,8 @@ static const struct unicam_fmt *find_for
return NULL;
}
-static inline unsigned int bytes_per_line(u32 width,
- const struct unicam_fmt *fmt,
- u32 v4l2_fourcc)
+static unsigned int bytes_per_line(u32 width, const struct unicam_fmt *fmt,
+ u32 v4l2_fourcc)
{
if (v4l2_fourcc == fmt->repacked_fourcc)
/* Repacking always goes to 16bpp */
@@ -720,7 +719,7 @@ static void unicam_wr_dma_addr(struct un
}
}
-static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
+static unsigned int unicam_get_lines_done(struct unicam_device *dev)
{
dma_addr_t start_addr, cur_addr;
unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline;
@@ -734,7 +733,7 @@ static inline unsigned int unicam_get_li
return (unsigned int)(cur_addr - start_addr) / stride;
}
-static inline void unicam_schedule_next_buffer(struct unicam_node *node)
+static void unicam_schedule_next_buffer(struct unicam_node *node)
{
struct unicam_device *dev = node->dev;
struct unicam_buffer *buf;
@@ -753,7 +752,7 @@ static inline void unicam_schedule_next_
unicam_wr_dma_addr(dev, addr, size, node->pad_id);
}
-static inline void unicam_schedule_dummy_buffer(struct unicam_node *node)
+static void unicam_schedule_dummy_buffer(struct unicam_node *node)
{
struct unicam_device *dev = node->dev;
@@ -765,8 +764,8 @@ static inline void unicam_schedule_dummy
node->next_frm = NULL;
}
-static inline void unicam_process_buffer_complete(struct unicam_node *node,
- unsigned int sequence)
+static void unicam_process_buffer_complete(struct unicam_node *node,
+ unsigned int sequence)
{
node->cur_frm->vb.field = node->m_fmt.field;
node->cur_frm->vb.sequence = sequence;
@@ -774,16 +773,6 @@ static inline void unicam_process_buffer
vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
}
-static bool unicam_all_nodes_streaming(struct unicam_device *dev)
-{
- bool ret;
-
- ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming;
- ret &= !dev->node[METADATA_PAD].open ||
- dev->node[METADATA_PAD].streaming;
- return ret;
-}
-
static void unicam_queue_event_sof(struct unicam_device *unicam)
{
struct v4l2_event event = {
@@ -906,8 +895,8 @@ static int unicam_querycap(struct file *
struct unicam_node *node = video_drvdata(file);
struct unicam_device *dev = node->dev;
- strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
- strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
+ strscpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
+ strscpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
snprintf(cap->bus_info, sizeof(cap->bus_info),
"platform:%s", dev_name(&dev->pdev->dev));
@@ -1000,8 +989,8 @@ static int unicam_g_fmt_vid_cap(struct f
return 0;
}
-static
-const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev)
+static const struct unicam_fmt *
+get_first_supported_format(struct unicam_device *dev)
{
struct v4l2_subdev_mbus_code_enum mbus_code;
const struct unicam_fmt *fmt = NULL;
@@ -1591,7 +1580,8 @@ static void unicam_disable(struct unicam
clk_write(dev, 0);
}
-static void unicam_return_buffers(struct unicam_node *node)
+static void unicam_return_buffers(struct unicam_node *node,
+ enum vb2_buffer_state state)
{
struct unicam_buffer *buf, *tmp;
unsigned long flags;
@@ -1599,15 +1589,15 @@ static void unicam_return_buffers(struct
spin_lock_irqsave(&node->dma_queue_lock, flags);
list_for_each_entry_safe(buf, tmp, &node->dma_queue, list) {
list_del(&buf->list);
- vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
}
if (node->cur_frm)
vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
- VB2_BUF_STATE_ERROR);
+ state);
if (node->next_frm && node->cur_frm != node->next_frm)
vb2_buffer_done(&node->next_frm->vb.vb2_buf,
- VB2_BUF_STATE_ERROR);
+ state);
node->cur_frm = NULL;
node->next_frm = NULL;
@@ -1624,7 +1614,13 @@ static int unicam_start_streaming(struct
int ret;
node->streaming = true;
- if (!unicam_all_nodes_streaming(dev)) {
+ if (!(dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming &&
+ (!dev->node[METADATA_PAD].open ||
+ dev->node[METADATA_PAD].streaming))) {
+ /*
+ * Metadata pad must be enabled before image pad if it is
+ * wanted.
+ */
unicam_dbg(3, dev, "Not all nodes are streaming yet.");
return 0;
}
@@ -1728,7 +1724,7 @@ err_vpu_clock:
err_pm_put:
unicam_runtime_put(dev);
err_streaming:
- unicam_return_buffers(node);
+ unicam_return_buffers(node, VB2_BUF_STATE_QUEUED);
node->streaming = false;
return ret;
@@ -1773,7 +1769,7 @@ static void unicam_stop_streaming(struct
}
/* Clear all queued buffers for the node */
- unicam_return_buffers(node);
+ unicam_return_buffers(node, VB2_BUF_STATE_ERROR);
}
static int unicam_enum_input(struct file *file, void *priv,
@@ -1791,14 +1787,13 @@ static int unicam_enum_input(struct file
inp->std = 0;
} else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) {
inp->capabilities = V4L2_IN_CAP_STD;
- if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std)
- < 0)
+ if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std) < 0)
inp->std = V4L2_STD_ALL;
} else {
inp->capabilities = 0;
inp->std = 0;
}
- sprintf(inp->name, "Camera 0");
+ snprintf(inp->name, sizeof(inp->name), "Camera 0");
return 0;
}
@@ -2027,6 +2022,9 @@ static int unicam_s_dv_timings(struct fi
ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings,
&current_timings);
+ if (ret < 0)
+ return ret;
+
if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
return 0;
@@ -2457,12 +2455,6 @@ static int register_node(struct unicam_d
unicam_err(unicam, "Unable to allocate dummy buffer.\n");
return -ENOMEM;
}
-
- if (pad_id == METADATA_PAD) {
- v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
- v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
- v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
- }
if (pad_id == METADATA_PAD ||
!v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
Reference in New Issue View Git Blame Copy Permalink