summaryrefslogtreecommitdiff
path: root/drivers/media/platform/aspeed-video.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-03-30 13:42:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-03-30 13:42:05 -0700
commit063d1942247668eb0bb800aef5afbbef337344be (patch)
tree3be8d6edaa586580d169da63c6c0c17ce1a86b25 /drivers/media/platform/aspeed-video.c
parent47acac8cae28b36668bf89400c56b7fdebca3e75 (diff)
parent2632e7b618a7730969f9782593c29ca53553aa22 (diff)
Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - New sensor driver: imx219 - Support for some new pixelformats - Support for Sun8i SoC - Added more codecs to meson vdec driver - Prepare for removing the legacy usbvision driver by moving it to staging. This driver has issues and use legacy core APIs. If nobody steps up to address those, it is time for its retirement. - Several cleanups and improvements on drivers, with the addition of new supported boards * tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (236 commits) media: venus: firmware: Ignore secure call error on first resume media: mtk-vpu: load vpu firmware from the new location media: i2c: video-i2c: fix build errors due to 'imply hwmon' media: MAINTAINERS: add myself to co-maintain Hantro G1/G2 for i.MX8MQ media: hantro: add initial i.MX8MQ support media: dt-bindings: Document i.MX8MQ VPU bindings media: vivid: fix incorrect PA assignment to HDMI outputs media: hantro: Add linux-rockchip mailing list to MAINTAINERS media: cedrus: h264: Fix 4K decoding on H6 media: siano: Use scnprintf() for avoiding potential buffer overflow media: rc: Use scnprintf() for avoiding potential buffer overflow media: allegro: create new struct for channel parameters media: allegro: move mail definitions to separate file media: allegro: pass buffers through firmware media: allegro: verify source and destination buffer in VCU response media: allegro: handle dependency of bitrate and bitrate_peak media: allegro: read bitrate mode directly from control media: allegro: make QP configurable media: allegro: make frame rate configurable media: allegro: skip filler data if possible ...
Diffstat (limited to 'drivers/media/platform/aspeed-video.c')
-rw-r--r--drivers/media/platform/aspeed-video.c86
1 files changed, 58 insertions, 28 deletions
diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index d8593cb2ae84..7d98db1d9b52 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1,4 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2020 IBM Corp.
+// Copyright (c) 2019-2020 Intel Corporation
#include <linux/atomic.h>
#include <linux/bitfield.h>
@@ -72,11 +74,8 @@
#define VE_SEQ_CTRL_CAP_BUSY BIT(16)
#define VE_SEQ_CTRL_COMP_BUSY BIT(18)
-#ifdef CONFIG_MACH_ASPEED_G5
-#define VE_SEQ_CTRL_JPEG_MODE BIT(13) /* AST2500 */
-#else
-#define VE_SEQ_CTRL_JPEG_MODE BIT(8) /* AST2400 */
-#endif /* CONFIG_MACH_ASPEED_G5 */
+#define AST2500_VE_SEQ_CTRL_JPEG_MODE BIT(13)
+#define AST2400_VE_SEQ_CTRL_JPEG_MODE BIT(8)
#define VE_CTRL 0x008
#define VE_CTRL_HSYNC_POL BIT(0)
@@ -133,7 +132,8 @@
#define VE_COMP_CTRL_HQ_DCT_CHR GENMASK(26, 22)
#define VE_COMP_CTRL_HQ_DCT_LUM GENMASK(31, 27)
-#define VE_OFFSET_COMP_STREAM 0x078
+#define AST2400_VE_COMP_SIZE_READ_BACK 0x078
+#define AST2600_VE_COMP_SIZE_READ_BACK 0x084
#define VE_SRC_LR_EDGE_DET 0x090
#define VE_SRC_LR_EDGE_DET_LEFT GENMASK(11, 0)
@@ -220,6 +220,9 @@ struct aspeed_video {
struct video_device vdev;
struct mutex video_lock; /* v4l2 and videobuf2 lock */
+ u32 jpeg_mode;
+ u32 comp_size_read;
+
wait_queue_head_t wait;
spinlock_t lock; /* buffer list lock */
struct delayed_work res_work;
@@ -243,6 +246,26 @@ struct aspeed_video {
#define to_aspeed_video(x) container_of((x), struct aspeed_video, v4l2_dev)
+struct aspeed_video_config {
+ u32 jpeg_mode;
+ u32 comp_size_read;
+};
+
+static const struct aspeed_video_config ast2400_config = {
+ .jpeg_mode = AST2400_VE_SEQ_CTRL_JPEG_MODE,
+ .comp_size_read = AST2400_VE_COMP_SIZE_READ_BACK,
+};
+
+static const struct aspeed_video_config ast2500_config = {
+ .jpeg_mode = AST2500_VE_SEQ_CTRL_JPEG_MODE,
+ .comp_size_read = AST2400_VE_COMP_SIZE_READ_BACK,
+};
+
+static const struct aspeed_video_config ast2600_config = {
+ .jpeg_mode = AST2500_VE_SEQ_CTRL_JPEG_MODE,
+ .comp_size_read = AST2600_VE_COMP_SIZE_READ_BACK,
+};
+
static const u32 aspeed_video_jpeg_header[ASPEED_VIDEO_JPEG_HEADER_SIZE] = {
0xe0ffd8ff, 0x464a1000, 0x01004649, 0x60000101, 0x00006000, 0x0f00feff,
0x00002d05, 0x00000000, 0x00000000, 0x00dbff00
@@ -572,7 +595,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
if (sts & VE_INTERRUPT_COMP_COMPLETE) {
struct aspeed_video_buffer *buf;
u32 frame_size = aspeed_video_read(video,
- VE_OFFSET_COMP_STREAM);
+ video->comp_size_read);
spin_lock(&video->lock);
clear_bit(VIDEO_FRAME_INPRG, &video->flags);
@@ -907,7 +930,7 @@ static void aspeed_video_init_regs(struct aspeed_video *video)
FIELD_PREP(VE_COMP_CTRL_DCT_LUM, video->jpeg_quality) |
FIELD_PREP(VE_COMP_CTRL_DCT_CHR, video->jpeg_quality | 0x10);
u32 ctrl = VE_CTRL_AUTO_OR_CURSOR;
- u32 seq_ctrl = VE_SEQ_CTRL_JPEG_MODE;
+ u32 seq_ctrl = video->jpeg_mode;
if (video->frame_rate)
ctrl |= FIELD_PREP(VE_CTRL_FRC, video->frame_rate);
@@ -1565,14 +1588,14 @@ static int aspeed_video_setup_video(struct aspeed_video *video)
V4L2_CAP_STREAMING;
vdev->v4l2_dev = v4l2_dev;
strscpy(vdev->name, DEVICE_NAME, sizeof(vdev->name));
- vdev->vfl_type = VFL_TYPE_GRABBER;
+ vdev->vfl_type = VFL_TYPE_VIDEO;
vdev->vfl_dir = VFL_DIR_RX;
vdev->release = video_device_release_empty;
vdev->ioctl_ops = &aspeed_video_ioctl_ops;
vdev->lock = &video->video_lock;
video_set_drvdata(vdev, video);
- rc = video_register_device(vdev, VFL_TYPE_GRABBER, 0);
+ rc = video_register_device(vdev, VFL_TYPE_VIDEO, 0);
if (rc) {
vb2_queue_release(vbq);
v4l2_ctrl_handler_free(&video->ctrl_handler);
@@ -1653,16 +1676,37 @@ err_unprepare_eclk:
return rc;
}
+static const struct of_device_id aspeed_video_of_match[] = {
+ { .compatible = "aspeed,ast2400-video-engine", .data = &ast2400_config },
+ { .compatible = "aspeed,ast2500-video-engine", .data = &ast2500_config },
+ { .compatible = "aspeed,ast2600-video-engine", .data = &ast2600_config },
+ {}
+};
+MODULE_DEVICE_TABLE(of, aspeed_video_of_match);
+
static int aspeed_video_probe(struct platform_device *pdev)
{
+ const struct aspeed_video_config *config;
+ const struct of_device_id *match;
+ struct aspeed_video *video;
int rc;
- struct resource *res;
- struct aspeed_video *video =
- devm_kzalloc(&pdev->dev, sizeof(*video), GFP_KERNEL);
+ video = devm_kzalloc(&pdev->dev, sizeof(*video), GFP_KERNEL);
if (!video)
return -ENOMEM;
+ video->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(video->base))
+ return PTR_ERR(video->base);
+
+ match = of_match_node(aspeed_video_of_match, pdev->dev.of_node);
+ if (!match)
+ return -EINVAL;
+
+ config = match->data;
+ video->jpeg_mode = config->jpeg_mode;
+ video->comp_size_read = config->comp_size_read;
+
video->frame_rate = 30;
video->dev = &pdev->dev;
spin_lock_init(&video->lock);
@@ -1671,13 +1715,6 @@ static int aspeed_video_probe(struct platform_device *pdev)
INIT_DELAYED_WORK(&video->res_work, aspeed_video_resolution_work);
INIT_LIST_HEAD(&video->buffers);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- video->base = devm_ioremap_resource(video->dev, res);
-
- if (IS_ERR(video->base))
- return PTR_ERR(video->base);
-
rc = aspeed_video_init(video);
if (rc)
return rc;
@@ -1716,13 +1753,6 @@ static int aspeed_video_remove(struct platform_device *pdev)
return 0;
}
-static const struct of_device_id aspeed_video_of_match[] = {
- { .compatible = "aspeed,ast2400-video-engine" },
- { .compatible = "aspeed,ast2500-video-engine" },
- {}
-};
-MODULE_DEVICE_TABLE(of, aspeed_video_of_match);
-
static struct platform_driver aspeed_video_driver = {
.driver = {
.name = DEVICE_NAME,