forked from Minki/linux
07758747a2
The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.
This is detected by Coccinelle semantic patch.
Fixes: d2b4387f3b ("media: platform: Add Aspeed Video Engine driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
1731 lines
50 KiB
C
1731 lines
50 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <linux/atomic.h>
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#include <linux/bitfield.h>
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/interrupt.h>
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#include <linux/jiffies.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_reserved_mem.h>
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#include <linux/platform_device.h>
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#include <linux/reset.h>
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/string.h>
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#include <linux/v4l2-controls.h>
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#include <linux/videodev2.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-dv-timings.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-ioctl.h>
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#include <media/videobuf2-dma-contig.h>
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#define DEVICE_NAME "aspeed-video"
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#define ASPEED_VIDEO_JPEG_NUM_QUALITIES 12
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#define ASPEED_VIDEO_JPEG_HEADER_SIZE 10
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#define ASPEED_VIDEO_JPEG_QUANT_SIZE 116
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#define ASPEED_VIDEO_JPEG_DCT_SIZE 34
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#define MAX_FRAME_RATE 60
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#define MAX_HEIGHT 1200
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#define MAX_WIDTH 1920
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#define MIN_HEIGHT 480
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#define MIN_WIDTH 640
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#define NUM_POLARITY_CHECKS 10
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#define INVALID_RESOLUTION_RETRIES 2
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#define INVALID_RESOLUTION_DELAY msecs_to_jiffies(250)
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#define RESOLUTION_CHANGE_DELAY msecs_to_jiffies(500)
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#define MODE_DETECT_TIMEOUT msecs_to_jiffies(500)
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#define STOP_TIMEOUT msecs_to_jiffies(1000)
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#define DIRECT_FETCH_THRESHOLD 0x0c0000 /* 1024 * 768 */
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#define VE_MAX_SRC_BUFFER_SIZE 0x8ca000 /* 1920 * 1200, 32bpp */
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#define VE_JPEG_HEADER_SIZE 0x006000 /* 512 * 12 * 4 */
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#define VE_PROTECTION_KEY 0x000
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#define VE_PROTECTION_KEY_UNLOCK 0x1a038aa8
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#define VE_SEQ_CTRL 0x004
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#define VE_SEQ_CTRL_TRIG_MODE_DET BIT(0)
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#define VE_SEQ_CTRL_TRIG_CAPTURE BIT(1)
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#define VE_SEQ_CTRL_FORCE_IDLE BIT(2)
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#define VE_SEQ_CTRL_MULT_FRAME BIT(3)
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#define VE_SEQ_CTRL_TRIG_COMP BIT(4)
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#define VE_SEQ_CTRL_AUTO_COMP BIT(5)
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#define VE_SEQ_CTRL_EN_WATCHDOG BIT(7)
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#define VE_SEQ_CTRL_YUV420 BIT(10)
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#define VE_SEQ_CTRL_COMP_FMT GENMASK(11, 10)
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#define VE_SEQ_CTRL_HALT BIT(12)
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#define VE_SEQ_CTRL_EN_WATCHDOG_COMP BIT(14)
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#define VE_SEQ_CTRL_TRIG_JPG BIT(15)
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#define VE_SEQ_CTRL_CAP_BUSY BIT(16)
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#define VE_SEQ_CTRL_COMP_BUSY BIT(18)
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#ifdef CONFIG_MACH_ASPEED_G5
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#define VE_SEQ_CTRL_JPEG_MODE BIT(13) /* AST2500 */
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#else
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#define VE_SEQ_CTRL_JPEG_MODE BIT(8) /* AST2400 */
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#endif /* CONFIG_MACH_ASPEED_G5 */
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#define VE_CTRL 0x008
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#define VE_CTRL_HSYNC_POL BIT(0)
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#define VE_CTRL_VSYNC_POL BIT(1)
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#define VE_CTRL_SOURCE BIT(2)
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#define VE_CTRL_INT_DE BIT(4)
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#define VE_CTRL_DIRECT_FETCH BIT(5)
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#define VE_CTRL_YUV BIT(6)
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#define VE_CTRL_RGB BIT(7)
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#define VE_CTRL_CAPTURE_FMT GENMASK(7, 6)
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#define VE_CTRL_AUTO_OR_CURSOR BIT(8)
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#define VE_CTRL_CLK_INVERSE BIT(11)
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#define VE_CTRL_CLK_DELAY GENMASK(11, 9)
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#define VE_CTRL_INTERLACE BIT(14)
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#define VE_CTRL_HSYNC_POL_CTRL BIT(15)
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#define VE_CTRL_FRC GENMASK(23, 16)
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#define VE_TGS_0 0x00c
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#define VE_TGS_1 0x010
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#define VE_TGS_FIRST GENMASK(28, 16)
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#define VE_TGS_LAST GENMASK(12, 0)
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#define VE_SCALING_FACTOR 0x014
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#define VE_SCALING_FILTER0 0x018
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#define VE_SCALING_FILTER1 0x01c
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#define VE_SCALING_FILTER2 0x020
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#define VE_SCALING_FILTER3 0x024
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#define VE_CAP_WINDOW 0x030
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#define VE_COMP_WINDOW 0x034
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#define VE_COMP_PROC_OFFSET 0x038
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#define VE_COMP_OFFSET 0x03c
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#define VE_JPEG_ADDR 0x040
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#define VE_SRC0_ADDR 0x044
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#define VE_SRC_SCANLINE_OFFSET 0x048
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#define VE_SRC1_ADDR 0x04c
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#define VE_COMP_ADDR 0x054
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#define VE_STREAM_BUF_SIZE 0x058
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#define VE_STREAM_BUF_SIZE_N_PACKETS GENMASK(5, 3)
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#define VE_STREAM_BUF_SIZE_P_SIZE GENMASK(2, 0)
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#define VE_COMP_CTRL 0x060
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#define VE_COMP_CTRL_VQ_DCT_ONLY BIT(0)
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#define VE_COMP_CTRL_VQ_4COLOR BIT(1)
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#define VE_COMP_CTRL_QUANTIZE BIT(2)
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#define VE_COMP_CTRL_EN_BQ BIT(4)
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#define VE_COMP_CTRL_EN_CRYPTO BIT(5)
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#define VE_COMP_CTRL_DCT_CHR GENMASK(10, 6)
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#define VE_COMP_CTRL_DCT_LUM GENMASK(15, 11)
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#define VE_COMP_CTRL_EN_HQ BIT(16)
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#define VE_COMP_CTRL_RSVD BIT(19)
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#define VE_COMP_CTRL_ENCODE GENMASK(21, 20)
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#define VE_COMP_CTRL_HQ_DCT_CHR GENMASK(26, 22)
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#define VE_COMP_CTRL_HQ_DCT_LUM GENMASK(31, 27)
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#define VE_OFFSET_COMP_STREAM 0x078
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#define VE_SRC_LR_EDGE_DET 0x090
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#define VE_SRC_LR_EDGE_DET_LEFT GENMASK(11, 0)
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#define VE_SRC_LR_EDGE_DET_NO_V BIT(12)
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#define VE_SRC_LR_EDGE_DET_NO_H BIT(13)
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#define VE_SRC_LR_EDGE_DET_NO_DISP BIT(14)
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#define VE_SRC_LR_EDGE_DET_NO_CLK BIT(15)
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#define VE_SRC_LR_EDGE_DET_RT_SHF 16
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#define VE_SRC_LR_EDGE_DET_RT GENMASK(27, VE_SRC_LR_EDGE_DET_RT_SHF)
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#define VE_SRC_LR_EDGE_DET_INTERLACE BIT(31)
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#define VE_SRC_TB_EDGE_DET 0x094
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#define VE_SRC_TB_EDGE_DET_TOP GENMASK(12, 0)
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#define VE_SRC_TB_EDGE_DET_BOT_SHF 16
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#define VE_SRC_TB_EDGE_DET_BOT GENMASK(28, VE_SRC_TB_EDGE_DET_BOT_SHF)
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#define VE_MODE_DETECT_STATUS 0x098
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#define VE_MODE_DETECT_H_PIXELS GENMASK(11, 0)
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#define VE_MODE_DETECT_V_LINES_SHF 16
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#define VE_MODE_DETECT_V_LINES GENMASK(27, VE_MODE_DETECT_V_LINES_SHF)
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#define VE_MODE_DETECT_STATUS_VSYNC BIT(28)
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#define VE_MODE_DETECT_STATUS_HSYNC BIT(29)
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#define VE_SYNC_STATUS 0x09c
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#define VE_SYNC_STATUS_HSYNC GENMASK(11, 0)
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#define VE_SYNC_STATUS_VSYNC_SHF 16
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#define VE_SYNC_STATUS_VSYNC GENMASK(27, VE_SYNC_STATUS_VSYNC_SHF)
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#define VE_INTERRUPT_CTRL 0x304
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#define VE_INTERRUPT_STATUS 0x308
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#define VE_INTERRUPT_MODE_DETECT_WD BIT(0)
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#define VE_INTERRUPT_CAPTURE_COMPLETE BIT(1)
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#define VE_INTERRUPT_COMP_READY BIT(2)
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#define VE_INTERRUPT_COMP_COMPLETE BIT(3)
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#define VE_INTERRUPT_MODE_DETECT BIT(4)
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#define VE_INTERRUPT_FRAME_COMPLETE BIT(5)
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#define VE_INTERRUPT_DECODE_ERR BIT(6)
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#define VE_INTERRUPT_HALT_READY BIT(8)
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#define VE_INTERRUPT_HANG_WD BIT(9)
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#define VE_INTERRUPT_STREAM_DESC BIT(10)
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#define VE_INTERRUPT_VSYNC_DESC BIT(11)
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#define VE_MODE_DETECT 0x30c
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#define VE_MEM_RESTRICT_START 0x310
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#define VE_MEM_RESTRICT_END 0x314
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enum {
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VIDEO_MODE_DETECT_DONE,
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VIDEO_RES_CHANGE,
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VIDEO_RES_DETECT,
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VIDEO_STREAMING,
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VIDEO_FRAME_INPRG,
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VIDEO_STOPPED,
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};
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struct aspeed_video_addr {
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unsigned int size;
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dma_addr_t dma;
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void *virt;
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};
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struct aspeed_video_buffer {
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struct vb2_v4l2_buffer vb;
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struct list_head link;
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};
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#define to_aspeed_video_buffer(x) \
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container_of((x), struct aspeed_video_buffer, vb)
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struct aspeed_video {
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void __iomem *base;
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struct clk *eclk;
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struct clk *vclk;
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struct reset_control *rst;
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struct device *dev;
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_device v4l2_dev;
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struct v4l2_pix_format pix_fmt;
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struct v4l2_bt_timings active_timings;
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struct v4l2_bt_timings detected_timings;
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u32 v4l2_input_status;
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struct vb2_queue queue;
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struct video_device vdev;
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struct mutex video_lock; /* v4l2 and videobuf2 lock */
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wait_queue_head_t wait;
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spinlock_t lock; /* buffer list lock */
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struct delayed_work res_work;
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struct list_head buffers;
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unsigned long flags;
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unsigned int sequence;
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unsigned int max_compressed_size;
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struct aspeed_video_addr srcs[2];
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struct aspeed_video_addr jpeg;
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bool yuv420;
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unsigned int frame_rate;
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unsigned int jpeg_quality;
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unsigned int frame_bottom;
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unsigned int frame_left;
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unsigned int frame_right;
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unsigned int frame_top;
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};
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#define to_aspeed_video(x) container_of((x), struct aspeed_video, v4l2_dev)
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static const u32 aspeed_video_jpeg_header[ASPEED_VIDEO_JPEG_HEADER_SIZE] = {
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0xe0ffd8ff, 0x464a1000, 0x01004649, 0x60000101, 0x00006000, 0x0f00feff,
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0x00002d05, 0x00000000, 0x00000000, 0x00dbff00
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};
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static const u32 aspeed_video_jpeg_quant[ASPEED_VIDEO_JPEG_QUANT_SIZE] = {
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0x081100c0, 0x00000000, 0x00110103, 0x03011102, 0xc4ff0111, 0x00001f00,
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0x01010501, 0x01010101, 0x00000000, 0x00000000, 0x04030201, 0x08070605,
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0xff0b0a09, 0x10b500c4, 0x03010200, 0x03040203, 0x04040505, 0x7d010000,
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0x00030201, 0x12051104, 0x06413121, 0x07615113, 0x32147122, 0x08a19181,
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0xc1b14223, 0xf0d15215, 0x72623324, 0x160a0982, 0x1a191817, 0x28272625,
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0x35342a29, 0x39383736, 0x4544433a, 0x49484746, 0x5554534a, 0x59585756,
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0x6564635a, 0x69686766, 0x7574736a, 0x79787776, 0x8584837a, 0x89888786,
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0x9493928a, 0x98979695, 0xa3a29a99, 0xa7a6a5a4, 0xb2aaa9a8, 0xb6b5b4b3,
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0xbab9b8b7, 0xc5c4c3c2, 0xc9c8c7c6, 0xd4d3d2ca, 0xd8d7d6d5, 0xe2e1dad9,
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0xe6e5e4e3, 0xeae9e8e7, 0xf4f3f2f1, 0xf8f7f6f5, 0xc4fffaf9, 0x00011f00,
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0x01010103, 0x01010101, 0x00000101, 0x00000000, 0x04030201, 0x08070605,
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0xff0b0a09, 0x11b500c4, 0x02010200, 0x04030404, 0x04040507, 0x77020100,
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0x03020100, 0x21050411, 0x41120631, 0x71610751, 0x81322213, 0x91421408,
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0x09c1b1a1, 0xf0523323, 0xd1726215, 0x3424160a, 0x17f125e1, 0x261a1918,
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0x2a292827, 0x38373635, 0x44433a39, 0x48474645, 0x54534a49, 0x58575655,
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0x64635a59, 0x68676665, 0x74736a69, 0x78777675, 0x83827a79, 0x87868584,
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0x928a8988, 0x96959493, 0x9a999897, 0xa5a4a3a2, 0xa9a8a7a6, 0xb4b3b2aa,
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0xb8b7b6b5, 0xc3c2bab9, 0xc7c6c5c4, 0xd2cac9c8, 0xd6d5d4d3, 0xdad9d8d7,
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0xe5e4e3e2, 0xe9e8e7e6, 0xf4f3f2ea, 0xf8f7f6f5, 0xdafffaf9, 0x01030c00,
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0x03110200, 0x003f0011
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};
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static const u32 aspeed_video_jpeg_dct[ASPEED_VIDEO_JPEG_NUM_QUALITIES]
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[ASPEED_VIDEO_JPEG_DCT_SIZE] = {
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{ 0x0d140043, 0x0c0f110f, 0x11101114, 0x17141516, 0x1e20321e,
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0x3d1e1b1b, 0x32242e2b, 0x4b4c3f48, 0x44463f47, 0x61735a50,
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0x566c5550, 0x88644644, 0x7a766c65, 0x4d808280, 0x8c978d60,
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0x7e73967d, 0xdbff7b80, 0x1f014300, 0x272d2121, 0x3030582d,
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0x697bb958, 0xb8b9b97b, 0xb9b8a6a6, 0xb9b9b9b9, 0xb9b9b9b9,
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0xb9b9b9b9, 0xb9b9b9b9, 0xb9b9b9b9, 0xb9b9b9b9, 0xb9b9b9b9,
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0xb9b9b9b9, 0xb9b9b9b9, 0xb9b9b9b9, 0xffb9b9b9 },
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{ 0x0c110043, 0x0a0d0f0d, 0x0f0e0f11, 0x14111213, 0x1a1c2b1a,
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0x351a1818, 0x2b1f2826, 0x4142373f, 0x3c3d373e, 0x55644e46,
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0x4b5f4a46, 0x77573d3c, 0x6b675f58, 0x43707170, 0x7a847b54,
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0x6e64836d, 0xdbff6c70, 0x1b014300, 0x22271d1d, 0x2a2a4c27,
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0x5b6ba04c, 0xa0a0a06b, 0xa0a0a0a0, 0xa0a0a0a0, 0xa0a0a0a0,
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0xa0a0a0a0, 0xa0a0a0a0, 0xa0a0a0a0, 0xa0a0a0a0, 0xa0a0a0a0,
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0xa0a0a0a0, 0xa0a0a0a0, 0xa0a0a0a0, 0xffa0a0a0 },
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{ 0x090e0043, 0x090a0c0a, 0x0c0b0c0e, 0x110e0f10, 0x15172415,
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0x2c151313, 0x241a211f, 0x36372e34, 0x31322e33, 0x4653413a,
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0x3e4e3d3a, 0x62483231, 0x58564e49, 0x385d5e5d, 0x656d6645,
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0x5b536c5a, 0xdbff595d, 0x16014300, 0x1c201818, 0x22223f20,
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0x4b58853f, 0x85858558, 0x85858585, 0x85858585, 0x85858585,
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0x85858585, 0x85858585, 0x85858585, 0x85858585, 0x85858585,
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0x85858585, 0x85858585, 0x85858585, 0xff858585 },
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{ 0x070b0043, 0x07080a08, 0x0a090a0b, 0x0d0b0c0c, 0x11121c11,
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0x23110f0f, 0x1c141a19, 0x2b2b2429, 0x27282428, 0x3842332e,
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0x313e302e, 0x4e392827, 0x46443e3a, 0x2c4a4a4a, 0x50565137,
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0x48425647, 0xdbff474a, 0x12014300, 0x161a1313, 0x1c1c331a,
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0x3d486c33, 0x6c6c6c48, 0x6c6c6c6c, 0x6c6c6c6c, 0x6c6c6c6c,
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0x6c6c6c6c, 0x6c6c6c6c, 0x6c6c6c6c, 0x6c6c6c6c, 0x6c6c6c6c,
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0x6c6c6c6c, 0x6c6c6c6c, 0x6c6c6c6c, 0xff6c6c6c },
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{ 0x06090043, 0x05060706, 0x07070709, 0x0a09090a, 0x0d0e160d,
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0x1b0d0c0c, 0x16101413, 0x21221c20, 0x1e1f1c20, 0x2b332824,
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0x26302624, 0x3d2d1f1e, 0x3735302d, 0x22393a39, 0x3f443f2b,
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0x38334338, 0xdbff3739, 0x0d014300, 0x11130e0e, 0x15152613,
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0x2d355026, 0x50505035, 0x50505050, 0x50505050, 0x50505050,
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0x50505050, 0x50505050, 0x50505050, 0x50505050, 0x50505050,
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0x50505050, 0x50505050, 0x50505050, 0xff505050 },
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{ 0x04060043, 0x03040504, 0x05040506, 0x07060606, 0x09090f09,
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0x12090808, 0x0f0a0d0d, 0x16161315, 0x14151315, 0x1d221b18,
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0x19201918, 0x281e1514, 0x2423201e, 0x17262726, 0x2a2d2a1c,
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0x25222d25, 0xdbff2526, 0x09014300, 0x0b0d0a0a, 0x0e0e1a0d,
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0x1f25371a, 0x37373725, 0x37373737, 0x37373737, 0x37373737,
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0x37373737, 0x37373737, 0x37373737, 0x37373737, 0x37373737,
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0x37373737, 0x37373737, 0x37373737, 0xff373737 },
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{ 0x02030043, 0x01020202, 0x02020203, 0x03030303, 0x04040704,
|
|
0x09040404, 0x07050606, 0x0b0b090a, 0x0a0a090a, 0x0e110d0c,
|
|
0x0c100c0c, 0x140f0a0a, 0x1211100f, 0x0b131313, 0x1516150e,
|
|
0x12111612, 0xdbff1213, 0x04014300, 0x05060505, 0x07070d06,
|
|
0x0f121b0d, 0x1b1b1b12, 0x1b1b1b1b, 0x1b1b1b1b, 0x1b1b1b1b,
|
|
0x1b1b1b1b, 0x1b1b1b1b, 0x1b1b1b1b, 0x1b1b1b1b, 0x1b1b1b1b,
|
|
0x1b1b1b1b, 0x1b1b1b1b, 0x1b1b1b1b, 0xff1b1b1b },
|
|
{ 0x01020043, 0x01010101, 0x01010102, 0x02020202, 0x03030503,
|
|
0x06030202, 0x05030404, 0x07070607, 0x06070607, 0x090b0908,
|
|
0x080a0808, 0x0d0a0706, 0x0c0b0a0a, 0x070c0d0c, 0x0e0f0e09,
|
|
0x0c0b0f0c, 0xdbff0c0c, 0x03014300, 0x03040303, 0x04040804,
|
|
0x0a0c1208, 0x1212120c, 0x12121212, 0x12121212, 0x12121212,
|
|
0x12121212, 0x12121212, 0x12121212, 0x12121212, 0x12121212,
|
|
0x12121212, 0x12121212, 0x12121212, 0xff121212 },
|
|
{ 0x01020043, 0x01010101, 0x01010102, 0x02020202, 0x03030503,
|
|
0x06030202, 0x05030404, 0x07070607, 0x06070607, 0x090b0908,
|
|
0x080a0808, 0x0d0a0706, 0x0c0b0a0a, 0x070c0d0c, 0x0e0f0e09,
|
|
0x0c0b0f0c, 0xdbff0c0c, 0x02014300, 0x03030202, 0x04040703,
|
|
0x080a0f07, 0x0f0f0f0a, 0x0f0f0f0f, 0x0f0f0f0f, 0x0f0f0f0f,
|
|
0x0f0f0f0f, 0x0f0f0f0f, 0x0f0f0f0f, 0x0f0f0f0f, 0x0f0f0f0f,
|
|
0x0f0f0f0f, 0x0f0f0f0f, 0x0f0f0f0f, 0xff0f0f0f },
|
|
{ 0x01010043, 0x01010101, 0x01010101, 0x01010101, 0x02020302,
|
|
0x04020202, 0x03020303, 0x05050405, 0x05050405, 0x07080606,
|
|
0x06080606, 0x0a070505, 0x09080807, 0x05090909, 0x0a0b0a07,
|
|
0x09080b09, 0xdbff0909, 0x02014300, 0x02030202, 0x03030503,
|
|
0x07080c05, 0x0c0c0c08, 0x0c0c0c0c, 0x0c0c0c0c, 0x0c0c0c0c,
|
|
0x0c0c0c0c, 0x0c0c0c0c, 0x0c0c0c0c, 0x0c0c0c0c, 0x0c0c0c0c,
|
|
0x0c0c0c0c, 0x0c0c0c0c, 0x0c0c0c0c, 0xff0c0c0c },
|
|
{ 0x01010043, 0x01010101, 0x01010101, 0x01010101, 0x01010201,
|
|
0x03010101, 0x02010202, 0x03030303, 0x03030303, 0x04050404,
|
|
0x04050404, 0x06050303, 0x06050505, 0x03060606, 0x07070704,
|
|
0x06050706, 0xdbff0606, 0x01014300, 0x01020101, 0x02020402,
|
|
0x05060904, 0x09090906, 0x09090909, 0x09090909, 0x09090909,
|
|
0x09090909, 0x09090909, 0x09090909, 0x09090909, 0x09090909,
|
|
0x09090909, 0x09090909, 0x09090909, 0xff090909 },
|
|
{ 0x01010043, 0x01010101, 0x01010101, 0x01010101, 0x01010101,
|
|
0x01010101, 0x01010101, 0x01010101, 0x01010101, 0x02020202,
|
|
0x02020202, 0x03020101, 0x03020202, 0x01030303, 0x03030302,
|
|
0x03020303, 0xdbff0403, 0x01014300, 0x01010101, 0x01010201,
|
|
0x03040602, 0x06060604, 0x06060606, 0x06060606, 0x06060606,
|
|
0x06060606, 0x06060606, 0x06060606, 0x06060606, 0x06060606,
|
|
0x06060606, 0x06060606, 0x06060606, 0xff060606 }
|
|
};
|
|
|
|
static const struct v4l2_dv_timings_cap aspeed_video_timings_cap = {
|
|
.type = V4L2_DV_BT_656_1120,
|
|
.bt = {
|
|
.min_width = MIN_WIDTH,
|
|
.max_width = MAX_WIDTH,
|
|
.min_height = MIN_HEIGHT,
|
|
.max_height = MAX_HEIGHT,
|
|
.min_pixelclock = 6574080, /* 640 x 480 x 24Hz */
|
|
.max_pixelclock = 138240000, /* 1920 x 1200 x 60Hz */
|
|
.standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
|
|
V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
|
|
.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
|
|
V4L2_DV_BT_CAP_REDUCED_BLANKING |
|
|
V4L2_DV_BT_CAP_CUSTOM,
|
|
},
|
|
};
|
|
|
|
static void aspeed_video_init_jpeg_table(u32 *table, bool yuv420)
|
|
{
|
|
int i;
|
|
unsigned int base;
|
|
|
|
for (i = 0; i < ASPEED_VIDEO_JPEG_NUM_QUALITIES; i++) {
|
|
base = 256 * i; /* AST HW requires this header spacing */
|
|
memcpy(&table[base], aspeed_video_jpeg_header,
|
|
sizeof(aspeed_video_jpeg_header));
|
|
|
|
base += ASPEED_VIDEO_JPEG_HEADER_SIZE;
|
|
memcpy(&table[base], aspeed_video_jpeg_dct[i],
|
|
sizeof(aspeed_video_jpeg_dct[i]));
|
|
|
|
base += ASPEED_VIDEO_JPEG_DCT_SIZE;
|
|
memcpy(&table[base], aspeed_video_jpeg_quant,
|
|
sizeof(aspeed_video_jpeg_quant));
|
|
|
|
if (yuv420)
|
|
table[base + 2] = 0x00220103;
|
|
}
|
|
}
|
|
|
|
static void aspeed_video_update(struct aspeed_video *video, u32 reg, u32 clear,
|
|
u32 bits)
|
|
{
|
|
u32 t = readl(video->base + reg);
|
|
u32 before = t;
|
|
|
|
t &= ~clear;
|
|
t |= bits;
|
|
writel(t, video->base + reg);
|
|
dev_dbg(video->dev, "update %03x[%08x -> %08x]\n", reg, before,
|
|
readl(video->base + reg));
|
|
}
|
|
|
|
static u32 aspeed_video_read(struct aspeed_video *video, u32 reg)
|
|
{
|
|
u32 t = readl(video->base + reg);
|
|
|
|
dev_dbg(video->dev, "read %03x[%08x]\n", reg, t);
|
|
return t;
|
|
}
|
|
|
|
static void aspeed_video_write(struct aspeed_video *video, u32 reg, u32 val)
|
|
{
|
|
writel(val, video->base + reg);
|
|
dev_dbg(video->dev, "write %03x[%08x]\n", reg,
|
|
readl(video->base + reg));
|
|
}
|
|
|
|
static int aspeed_video_start_frame(struct aspeed_video *video)
|
|
{
|
|
dma_addr_t addr;
|
|
unsigned long flags;
|
|
struct aspeed_video_buffer *buf;
|
|
u32 seq_ctrl = aspeed_video_read(video, VE_SEQ_CTRL);
|
|
|
|
if (video->v4l2_input_status) {
|
|
dev_dbg(video->dev, "No signal; don't start frame\n");
|
|
return 0;
|
|
}
|
|
|
|
if (!(seq_ctrl & VE_SEQ_CTRL_COMP_BUSY) ||
|
|
!(seq_ctrl & VE_SEQ_CTRL_CAP_BUSY)) {
|
|
dev_err(video->dev, "Engine busy; don't start frame\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
spin_lock_irqsave(&video->lock, flags);
|
|
buf = list_first_entry_or_null(&video->buffers,
|
|
struct aspeed_video_buffer, link);
|
|
if (!buf) {
|
|
spin_unlock_irqrestore(&video->lock, flags);
|
|
dev_dbg(video->dev, "No buffers; don't start frame\n");
|
|
return -EPROTO;
|
|
}
|
|
|
|
set_bit(VIDEO_FRAME_INPRG, &video->flags);
|
|
addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
|
|
spin_unlock_irqrestore(&video->lock, flags);
|
|
|
|
aspeed_video_write(video, VE_COMP_PROC_OFFSET, 0);
|
|
aspeed_video_write(video, VE_COMP_OFFSET, 0);
|
|
aspeed_video_write(video, VE_COMP_ADDR, addr);
|
|
|
|
aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
|
|
VE_INTERRUPT_COMP_COMPLETE |
|
|
VE_INTERRUPT_CAPTURE_COMPLETE);
|
|
|
|
aspeed_video_update(video, VE_SEQ_CTRL, 0,
|
|
VE_SEQ_CTRL_TRIG_CAPTURE | VE_SEQ_CTRL_TRIG_COMP);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void aspeed_video_enable_mode_detect(struct aspeed_video *video)
|
|
{
|
|
/* Enable mode detect interrupts */
|
|
aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
|
|
VE_INTERRUPT_MODE_DETECT);
|
|
|
|
/* Trigger mode detect */
|
|
aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_TRIG_MODE_DET);
|
|
}
|
|
|
|
static void aspeed_video_reset(struct aspeed_video *video)
|
|
{
|
|
/* Reset the engine */
|
|
reset_control_assert(video->rst);
|
|
|
|
/* Don't usleep here; function may be called in interrupt context */
|
|
udelay(100);
|
|
reset_control_deassert(video->rst);
|
|
}
|
|
|
|
static void aspeed_video_off(struct aspeed_video *video)
|
|
{
|
|
aspeed_video_reset(video);
|
|
|
|
/* Turn off the relevant clocks */
|
|
clk_disable_unprepare(video->vclk);
|
|
clk_disable_unprepare(video->eclk);
|
|
}
|
|
|
|
static void aspeed_video_on(struct aspeed_video *video)
|
|
{
|
|
/* Turn on the relevant clocks */
|
|
clk_prepare_enable(video->eclk);
|
|
clk_prepare_enable(video->vclk);
|
|
|
|
aspeed_video_reset(video);
|
|
}
|
|
|
|
static void aspeed_video_bufs_done(struct aspeed_video *video,
|
|
enum vb2_buffer_state state)
|
|
{
|
|
unsigned long flags;
|
|
struct aspeed_video_buffer *buf;
|
|
|
|
spin_lock_irqsave(&video->lock, flags);
|
|
list_for_each_entry(buf, &video->buffers, link)
|
|
vb2_buffer_done(&buf->vb.vb2_buf, state);
|
|
INIT_LIST_HEAD(&video->buffers);
|
|
spin_unlock_irqrestore(&video->lock, flags);
|
|
}
|
|
|
|
static void aspeed_video_irq_res_change(struct aspeed_video *video)
|
|
{
|
|
dev_dbg(video->dev, "Resolution changed; resetting\n");
|
|
|
|
set_bit(VIDEO_RES_CHANGE, &video->flags);
|
|
clear_bit(VIDEO_FRAME_INPRG, &video->flags);
|
|
|
|
aspeed_video_off(video);
|
|
aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR);
|
|
|
|
schedule_delayed_work(&video->res_work, RESOLUTION_CHANGE_DELAY);
|
|
}
|
|
|
|
static irqreturn_t aspeed_video_irq(int irq, void *arg)
|
|
{
|
|
struct aspeed_video *video = arg;
|
|
u32 sts = aspeed_video_read(video, VE_INTERRUPT_STATUS);
|
|
|
|
/*
|
|
* Resolution changed or signal was lost; reset the engine and
|
|
* re-initialize
|
|
*/
|
|
if (sts & VE_INTERRUPT_MODE_DETECT_WD) {
|
|
aspeed_video_irq_res_change(video);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
if (sts & VE_INTERRUPT_MODE_DETECT) {
|
|
if (test_bit(VIDEO_RES_DETECT, &video->flags)) {
|
|
aspeed_video_update(video, VE_INTERRUPT_CTRL,
|
|
VE_INTERRUPT_MODE_DETECT, 0);
|
|
aspeed_video_write(video, VE_INTERRUPT_STATUS,
|
|
VE_INTERRUPT_MODE_DETECT);
|
|
|
|
set_bit(VIDEO_MODE_DETECT_DONE, &video->flags);
|
|
wake_up_interruptible_all(&video->wait);
|
|
} else {
|
|
/*
|
|
* Signal acquired while NOT doing resolution
|
|
* detection; reset the engine and re-initialize
|
|
*/
|
|
aspeed_video_irq_res_change(video);
|
|
return IRQ_HANDLED;
|
|
}
|
|
}
|
|
|
|
if ((sts & VE_INTERRUPT_COMP_COMPLETE) &&
|
|
(sts & VE_INTERRUPT_CAPTURE_COMPLETE)) {
|
|
struct aspeed_video_buffer *buf;
|
|
u32 frame_size = aspeed_video_read(video,
|
|
VE_OFFSET_COMP_STREAM);
|
|
|
|
spin_lock(&video->lock);
|
|
clear_bit(VIDEO_FRAME_INPRG, &video->flags);
|
|
buf = list_first_entry_or_null(&video->buffers,
|
|
struct aspeed_video_buffer,
|
|
link);
|
|
if (buf) {
|
|
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, frame_size);
|
|
|
|
if (!list_is_last(&buf->link, &video->buffers)) {
|
|
buf->vb.vb2_buf.timestamp = ktime_get_ns();
|
|
buf->vb.sequence = video->sequence++;
|
|
buf->vb.field = V4L2_FIELD_NONE;
|
|
vb2_buffer_done(&buf->vb.vb2_buf,
|
|
VB2_BUF_STATE_DONE);
|
|
list_del(&buf->link);
|
|
}
|
|
}
|
|
spin_unlock(&video->lock);
|
|
|
|
aspeed_video_update(video, VE_SEQ_CTRL,
|
|
VE_SEQ_CTRL_TRIG_CAPTURE |
|
|
VE_SEQ_CTRL_FORCE_IDLE |
|
|
VE_SEQ_CTRL_TRIG_COMP, 0);
|
|
aspeed_video_update(video, VE_INTERRUPT_CTRL,
|
|
VE_INTERRUPT_COMP_COMPLETE |
|
|
VE_INTERRUPT_CAPTURE_COMPLETE, 0);
|
|
aspeed_video_write(video, VE_INTERRUPT_STATUS,
|
|
VE_INTERRUPT_COMP_COMPLETE |
|
|
VE_INTERRUPT_CAPTURE_COMPLETE);
|
|
|
|
if (test_bit(VIDEO_STREAMING, &video->flags) && buf)
|
|
aspeed_video_start_frame(video);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void aspeed_video_check_and_set_polarity(struct aspeed_video *video)
|
|
{
|
|
int i;
|
|
int hsync_counter = 0;
|
|
int vsync_counter = 0;
|
|
u32 sts;
|
|
|
|
for (i = 0; i < NUM_POLARITY_CHECKS; ++i) {
|
|
sts = aspeed_video_read(video, VE_MODE_DETECT_STATUS);
|
|
if (sts & VE_MODE_DETECT_STATUS_VSYNC)
|
|
vsync_counter--;
|
|
else
|
|
vsync_counter++;
|
|
|
|
if (sts & VE_MODE_DETECT_STATUS_HSYNC)
|
|
hsync_counter--;
|
|
else
|
|
hsync_counter++;
|
|
}
|
|
|
|
if (hsync_counter < 0 || vsync_counter < 0) {
|
|
u32 ctrl;
|
|
|
|
if (hsync_counter < 0) {
|
|
ctrl = VE_CTRL_HSYNC_POL;
|
|
video->detected_timings.polarities &=
|
|
~V4L2_DV_HSYNC_POS_POL;
|
|
} else {
|
|
video->detected_timings.polarities |=
|
|
V4L2_DV_HSYNC_POS_POL;
|
|
}
|
|
|
|
if (vsync_counter < 0) {
|
|
ctrl = VE_CTRL_VSYNC_POL;
|
|
video->detected_timings.polarities &=
|
|
~V4L2_DV_VSYNC_POS_POL;
|
|
} else {
|
|
video->detected_timings.polarities |=
|
|
V4L2_DV_VSYNC_POS_POL;
|
|
}
|
|
|
|
aspeed_video_update(video, VE_CTRL, 0, ctrl);
|
|
}
|
|
}
|
|
|
|
static bool aspeed_video_alloc_buf(struct aspeed_video *video,
|
|
struct aspeed_video_addr *addr,
|
|
unsigned int size)
|
|
{
|
|
addr->virt = dma_alloc_coherent(video->dev, size, &addr->dma,
|
|
GFP_KERNEL);
|
|
if (!addr->virt)
|
|
return false;
|
|
|
|
addr->size = size;
|
|
return true;
|
|
}
|
|
|
|
static void aspeed_video_free_buf(struct aspeed_video *video,
|
|
struct aspeed_video_addr *addr)
|
|
{
|
|
dma_free_coherent(video->dev, addr->size, addr->virt, addr->dma);
|
|
addr->size = 0;
|
|
addr->dma = 0ULL;
|
|
addr->virt = NULL;
|
|
}
|
|
|
|
/*
|
|
* Get the minimum HW-supported compression buffer size for the frame size.
|
|
* Assume worst-case JPEG compression size is 1/8 raw size. This should be
|
|
* plenty even for maximum quality; any worse and the engine will simply return
|
|
* incomplete JPEGs.
|
|
*/
|
|
static void aspeed_video_calc_compressed_size(struct aspeed_video *video,
|
|
unsigned int frame_size)
|
|
{
|
|
int i, j;
|
|
u32 compression_buffer_size_reg = 0;
|
|
unsigned int size;
|
|
const unsigned int num_compression_packets = 4;
|
|
const unsigned int compression_packet_size = 1024;
|
|
const unsigned int max_compressed_size = frame_size / 2; /* 4bpp / 8 */
|
|
|
|
video->max_compressed_size = UINT_MAX;
|
|
|
|
for (i = 0; i < 6; ++i) {
|
|
for (j = 0; j < 8; ++j) {
|
|
size = (num_compression_packets << i) *
|
|
(compression_packet_size << j);
|
|
if (size < max_compressed_size)
|
|
continue;
|
|
|
|
if (size < video->max_compressed_size) {
|
|
compression_buffer_size_reg = (i << 3) | j;
|
|
video->max_compressed_size = size;
|
|
}
|
|
}
|
|
}
|
|
|
|
aspeed_video_write(video, VE_STREAM_BUF_SIZE,
|
|
compression_buffer_size_reg);
|
|
|
|
dev_dbg(video->dev, "Max compressed size: %x\n",
|
|
video->max_compressed_size);
|
|
}
|
|
|
|
#define res_check(v) test_and_clear_bit(VIDEO_MODE_DETECT_DONE, &(v)->flags)
|
|
|
|
static void aspeed_video_get_resolution(struct aspeed_video *video)
|
|
{
|
|
bool invalid_resolution = true;
|
|
int rc;
|
|
int tries = 0;
|
|
u32 mds;
|
|
u32 src_lr_edge;
|
|
u32 src_tb_edge;
|
|
u32 sync;
|
|
struct v4l2_bt_timings *det = &video->detected_timings;
|
|
|
|
det->width = MIN_WIDTH;
|
|
det->height = MIN_HEIGHT;
|
|
video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
|
|
|
|
/*
|
|
* Since we need max buffer size for detection, free the second source
|
|
* buffer first.
|
|
*/
|
|
if (video->srcs[1].size)
|
|
aspeed_video_free_buf(video, &video->srcs[1]);
|
|
|
|
if (video->srcs[0].size < VE_MAX_SRC_BUFFER_SIZE) {
|
|
if (video->srcs[0].size)
|
|
aspeed_video_free_buf(video, &video->srcs[0]);
|
|
|
|
if (!aspeed_video_alloc_buf(video, &video->srcs[0],
|
|
VE_MAX_SRC_BUFFER_SIZE)) {
|
|
dev_err(video->dev,
|
|
"Failed to allocate source buffers\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
aspeed_video_write(video, VE_SRC0_ADDR, video->srcs[0].dma);
|
|
|
|
do {
|
|
if (tries) {
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
if (schedule_timeout(INVALID_RESOLUTION_DELAY))
|
|
return;
|
|
}
|
|
|
|
set_bit(VIDEO_RES_DETECT, &video->flags);
|
|
aspeed_video_enable_mode_detect(video);
|
|
|
|
rc = wait_event_interruptible_timeout(video->wait,
|
|
res_check(video),
|
|
MODE_DETECT_TIMEOUT);
|
|
if (!rc) {
|
|
dev_err(video->dev, "Timed out; first mode detect\n");
|
|
clear_bit(VIDEO_RES_DETECT, &video->flags);
|
|
return;
|
|
}
|
|
|
|
/* Disable mode detect in order to re-trigger */
|
|
aspeed_video_update(video, VE_SEQ_CTRL,
|
|
VE_SEQ_CTRL_TRIG_MODE_DET, 0);
|
|
|
|
aspeed_video_check_and_set_polarity(video);
|
|
|
|
aspeed_video_enable_mode_detect(video);
|
|
|
|
rc = wait_event_interruptible_timeout(video->wait,
|
|
res_check(video),
|
|
MODE_DETECT_TIMEOUT);
|
|
clear_bit(VIDEO_RES_DETECT, &video->flags);
|
|
if (!rc) {
|
|
dev_err(video->dev, "Timed out; second mode detect\n");
|
|
return;
|
|
}
|
|
|
|
src_lr_edge = aspeed_video_read(video, VE_SRC_LR_EDGE_DET);
|
|
src_tb_edge = aspeed_video_read(video, VE_SRC_TB_EDGE_DET);
|
|
mds = aspeed_video_read(video, VE_MODE_DETECT_STATUS);
|
|
sync = aspeed_video_read(video, VE_SYNC_STATUS);
|
|
|
|
video->frame_bottom = (src_tb_edge & VE_SRC_TB_EDGE_DET_BOT) >>
|
|
VE_SRC_TB_EDGE_DET_BOT_SHF;
|
|
video->frame_top = src_tb_edge & VE_SRC_TB_EDGE_DET_TOP;
|
|
det->vfrontporch = video->frame_top;
|
|
det->vbackporch = ((mds & VE_MODE_DETECT_V_LINES) >>
|
|
VE_MODE_DETECT_V_LINES_SHF) - video->frame_bottom;
|
|
det->vsync = (sync & VE_SYNC_STATUS_VSYNC) >>
|
|
VE_SYNC_STATUS_VSYNC_SHF;
|
|
if (video->frame_top > video->frame_bottom)
|
|
continue;
|
|
|
|
video->frame_right = (src_lr_edge & VE_SRC_LR_EDGE_DET_RT) >>
|
|
VE_SRC_LR_EDGE_DET_RT_SHF;
|
|
video->frame_left = src_lr_edge & VE_SRC_LR_EDGE_DET_LEFT;
|
|
det->hfrontporch = video->frame_left;
|
|
det->hbackporch = (mds & VE_MODE_DETECT_H_PIXELS) -
|
|
video->frame_right;
|
|
det->hsync = sync & VE_SYNC_STATUS_HSYNC;
|
|
if (video->frame_left > video->frame_right)
|
|
continue;
|
|
|
|
invalid_resolution = false;
|
|
} while (invalid_resolution && (tries++ < INVALID_RESOLUTION_RETRIES));
|
|
|
|
if (invalid_resolution) {
|
|
dev_err(video->dev, "Invalid resolution detected\n");
|
|
return;
|
|
}
|
|
|
|
det->height = (video->frame_bottom - video->frame_top) + 1;
|
|
det->width = (video->frame_right - video->frame_left) + 1;
|
|
video->v4l2_input_status = 0;
|
|
|
|
/*
|
|
* Enable mode-detect watchdog, resolution-change watchdog and
|
|
* automatic compression after frame capture.
|
|
*/
|
|
aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
|
|
VE_INTERRUPT_MODE_DETECT_WD);
|
|
aspeed_video_update(video, VE_SEQ_CTRL, 0,
|
|
VE_SEQ_CTRL_AUTO_COMP | VE_SEQ_CTRL_EN_WATCHDOG);
|
|
|
|
dev_dbg(video->dev, "Got resolution: %dx%d\n", det->width,
|
|
det->height);
|
|
}
|
|
|
|
static void aspeed_video_set_resolution(struct aspeed_video *video)
|
|
{
|
|
struct v4l2_bt_timings *act = &video->active_timings;
|
|
unsigned int size = act->width * act->height;
|
|
|
|
aspeed_video_calc_compressed_size(video, size);
|
|
|
|
/* Don't use direct mode below 1024 x 768 (irqs don't fire) */
|
|
if (size < DIRECT_FETCH_THRESHOLD) {
|
|
aspeed_video_write(video, VE_TGS_0,
|
|
FIELD_PREP(VE_TGS_FIRST,
|
|
video->frame_left - 1) |
|
|
FIELD_PREP(VE_TGS_LAST,
|
|
video->frame_right));
|
|
aspeed_video_write(video, VE_TGS_1,
|
|
FIELD_PREP(VE_TGS_FIRST, video->frame_top) |
|
|
FIELD_PREP(VE_TGS_LAST,
|
|
video->frame_bottom + 1));
|
|
aspeed_video_update(video, VE_CTRL, 0, VE_CTRL_INT_DE);
|
|
} else {
|
|
aspeed_video_update(video, VE_CTRL, 0, VE_CTRL_DIRECT_FETCH);
|
|
}
|
|
|
|
/* Set capture/compression frame sizes */
|
|
aspeed_video_write(video, VE_CAP_WINDOW,
|
|
act->width << 16 | act->height);
|
|
aspeed_video_write(video, VE_COMP_WINDOW,
|
|
act->width << 16 | act->height);
|
|
aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 4);
|
|
|
|
size *= 4;
|
|
|
|
if (size == video->srcs[0].size / 2) {
|
|
aspeed_video_write(video, VE_SRC1_ADDR,
|
|
video->srcs[0].dma + size);
|
|
} else if (size == video->srcs[0].size) {
|
|
if (!aspeed_video_alloc_buf(video, &video->srcs[1], size))
|
|
goto err_mem;
|
|
|
|
aspeed_video_write(video, VE_SRC1_ADDR, video->srcs[1].dma);
|
|
} else {
|
|
aspeed_video_free_buf(video, &video->srcs[0]);
|
|
|
|
if (!aspeed_video_alloc_buf(video, &video->srcs[0], size))
|
|
goto err_mem;
|
|
|
|
if (!aspeed_video_alloc_buf(video, &video->srcs[1], size))
|
|
goto err_mem;
|
|
|
|
aspeed_video_write(video, VE_SRC0_ADDR, video->srcs[0].dma);
|
|
aspeed_video_write(video, VE_SRC1_ADDR, video->srcs[1].dma);
|
|
}
|
|
|
|
return;
|
|
|
|
err_mem:
|
|
dev_err(video->dev, "Failed to allocate source buffers\n");
|
|
|
|
if (video->srcs[0].size)
|
|
aspeed_video_free_buf(video, &video->srcs[0]);
|
|
}
|
|
|
|
static void aspeed_video_init_regs(struct aspeed_video *video)
|
|
{
|
|
u32 comp_ctrl = VE_COMP_CTRL_RSVD |
|
|
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;
|
|
|
|
if (video->frame_rate)
|
|
ctrl |= FIELD_PREP(VE_CTRL_FRC, video->frame_rate);
|
|
|
|
if (video->yuv420)
|
|
seq_ctrl |= VE_SEQ_CTRL_YUV420;
|
|
|
|
/* Unlock VE registers */
|
|
aspeed_video_write(video, VE_PROTECTION_KEY, VE_PROTECTION_KEY_UNLOCK);
|
|
|
|
/* Disable interrupts */
|
|
aspeed_video_write(video, VE_INTERRUPT_CTRL, 0);
|
|
aspeed_video_write(video, VE_INTERRUPT_STATUS, 0xffffffff);
|
|
|
|
/* Clear the offset */
|
|
aspeed_video_write(video, VE_COMP_PROC_OFFSET, 0);
|
|
aspeed_video_write(video, VE_COMP_OFFSET, 0);
|
|
|
|
aspeed_video_write(video, VE_JPEG_ADDR, video->jpeg.dma);
|
|
|
|
/* Set control registers */
|
|
aspeed_video_write(video, VE_SEQ_CTRL, seq_ctrl);
|
|
aspeed_video_write(video, VE_CTRL, ctrl);
|
|
aspeed_video_write(video, VE_COMP_CTRL, comp_ctrl);
|
|
|
|
/* Don't downscale */
|
|
aspeed_video_write(video, VE_SCALING_FACTOR, 0x10001000);
|
|
aspeed_video_write(video, VE_SCALING_FILTER0, 0x00200000);
|
|
aspeed_video_write(video, VE_SCALING_FILTER1, 0x00200000);
|
|
aspeed_video_write(video, VE_SCALING_FILTER2, 0x00200000);
|
|
aspeed_video_write(video, VE_SCALING_FILTER3, 0x00200000);
|
|
|
|
/* Set mode detection defaults */
|
|
aspeed_video_write(video, VE_MODE_DETECT, 0x22666500);
|
|
}
|
|
|
|
static void aspeed_video_start(struct aspeed_video *video)
|
|
{
|
|
aspeed_video_on(video);
|
|
|
|
aspeed_video_init_regs(video);
|
|
|
|
/* Resolution set to 640x480 if no signal found */
|
|
aspeed_video_get_resolution(video);
|
|
|
|
/* Set timings since the device is being opened for the first time */
|
|
video->active_timings = video->detected_timings;
|
|
aspeed_video_set_resolution(video);
|
|
|
|
video->pix_fmt.width = video->active_timings.width;
|
|
video->pix_fmt.height = video->active_timings.height;
|
|
video->pix_fmt.sizeimage = video->max_compressed_size;
|
|
}
|
|
|
|
static void aspeed_video_stop(struct aspeed_video *video)
|
|
{
|
|
set_bit(VIDEO_STOPPED, &video->flags);
|
|
cancel_delayed_work_sync(&video->res_work);
|
|
|
|
aspeed_video_off(video);
|
|
|
|
if (video->srcs[0].size)
|
|
aspeed_video_free_buf(video, &video->srcs[0]);
|
|
|
|
if (video->srcs[1].size)
|
|
aspeed_video_free_buf(video, &video->srcs[1]);
|
|
|
|
video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
|
|
video->flags = 0;
|
|
}
|
|
|
|
static int aspeed_video_querycap(struct file *file, void *fh,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
strscpy(cap->driver, DEVICE_NAME, sizeof(cap->driver));
|
|
strscpy(cap->card, "Aspeed Video Engine", sizeof(cap->card));
|
|
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
|
|
DEVICE_NAME);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_enum_format(struct file *file, void *fh,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (f->index)
|
|
return -EINVAL;
|
|
|
|
f->pixelformat = V4L2_PIX_FMT_JPEG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_get_format(struct file *file, void *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
f->fmt.pix = video->pix_fmt;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_enum_input(struct file *file, void *fh,
|
|
struct v4l2_input *inp)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
if (inp->index)
|
|
return -EINVAL;
|
|
|
|
strscpy(inp->name, "Host VGA capture", sizeof(inp->name));
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
|
|
inp->status = video->v4l2_input_status;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_get_input(struct file *file, void *fh, unsigned int *i)
|
|
{
|
|
*i = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_set_input(struct file *file, void *fh, unsigned int i)
|
|
{
|
|
if (i)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_get_parm(struct file *file, void *fh,
|
|
struct v4l2_streamparm *a)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
a->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
|
|
a->parm.capture.readbuffers = 3;
|
|
a->parm.capture.timeperframe.numerator = 1;
|
|
if (!video->frame_rate)
|
|
a->parm.capture.timeperframe.denominator = MAX_FRAME_RATE;
|
|
else
|
|
a->parm.capture.timeperframe.denominator = video->frame_rate;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_set_parm(struct file *file, void *fh,
|
|
struct v4l2_streamparm *a)
|
|
{
|
|
unsigned int frame_rate = 0;
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
a->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
|
|
a->parm.capture.readbuffers = 3;
|
|
|
|
if (a->parm.capture.timeperframe.numerator)
|
|
frame_rate = a->parm.capture.timeperframe.denominator /
|
|
a->parm.capture.timeperframe.numerator;
|
|
|
|
if (!frame_rate || frame_rate > MAX_FRAME_RATE) {
|
|
frame_rate = 0;
|
|
a->parm.capture.timeperframe.denominator = MAX_FRAME_RATE;
|
|
a->parm.capture.timeperframe.numerator = 1;
|
|
}
|
|
|
|
if (video->frame_rate != frame_rate) {
|
|
video->frame_rate = frame_rate;
|
|
aspeed_video_update(video, VE_CTRL, VE_CTRL_FRC,
|
|
FIELD_PREP(VE_CTRL_FRC, frame_rate));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_enum_framesizes(struct file *file, void *fh,
|
|
struct v4l2_frmsizeenum *fsize)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
if (fsize->index)
|
|
return -EINVAL;
|
|
|
|
if (fsize->pixel_format != V4L2_PIX_FMT_JPEG)
|
|
return -EINVAL;
|
|
|
|
fsize->discrete.width = video->pix_fmt.width;
|
|
fsize->discrete.height = video->pix_fmt.height;
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_enum_frameintervals(struct file *file, void *fh,
|
|
struct v4l2_frmivalenum *fival)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
if (fival->index)
|
|
return -EINVAL;
|
|
|
|
if (fival->width != video->detected_timings.width ||
|
|
fival->height != video->detected_timings.height)
|
|
return -EINVAL;
|
|
|
|
if (fival->pixel_format != V4L2_PIX_FMT_JPEG)
|
|
return -EINVAL;
|
|
|
|
fival->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
|
|
|
|
fival->stepwise.min.denominator = MAX_FRAME_RATE;
|
|
fival->stepwise.min.numerator = 1;
|
|
fival->stepwise.max.denominator = 1;
|
|
fival->stepwise.max.numerator = 1;
|
|
fival->stepwise.step = fival->stepwise.max;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_set_dv_timings(struct file *file, void *fh,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
if (timings->bt.width == video->active_timings.width &&
|
|
timings->bt.height == video->active_timings.height)
|
|
return 0;
|
|
|
|
if (vb2_is_busy(&video->queue))
|
|
return -EBUSY;
|
|
|
|
video->active_timings = timings->bt;
|
|
|
|
aspeed_video_set_resolution(video);
|
|
|
|
video->pix_fmt.width = timings->bt.width;
|
|
video->pix_fmt.height = timings->bt.height;
|
|
video->pix_fmt.sizeimage = video->max_compressed_size;
|
|
|
|
timings->type = V4L2_DV_BT_656_1120;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_get_dv_timings(struct file *file, void *fh,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
timings->type = V4L2_DV_BT_656_1120;
|
|
timings->bt = video->active_timings;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_query_dv_timings(struct file *file, void *fh,
|
|
struct v4l2_dv_timings *timings)
|
|
{
|
|
int rc;
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
/*
|
|
* This blocks only if the driver is currently in the process of
|
|
* detecting a new resolution; in the event of no signal or timeout
|
|
* this function is woken up.
|
|
*/
|
|
if (file->f_flags & O_NONBLOCK) {
|
|
if (test_bit(VIDEO_RES_CHANGE, &video->flags))
|
|
return -EAGAIN;
|
|
} else {
|
|
rc = wait_event_interruptible(video->wait,
|
|
!test_bit(VIDEO_RES_CHANGE,
|
|
&video->flags));
|
|
if (rc)
|
|
return -EINTR;
|
|
}
|
|
|
|
timings->type = V4L2_DV_BT_656_1120;
|
|
timings->bt = video->detected_timings;
|
|
|
|
return video->v4l2_input_status ? -ENOLINK : 0;
|
|
}
|
|
|
|
static int aspeed_video_enum_dv_timings(struct file *file, void *fh,
|
|
struct v4l2_enum_dv_timings *timings)
|
|
{
|
|
return v4l2_enum_dv_timings_cap(timings, &aspeed_video_timings_cap,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static int aspeed_video_dv_timings_cap(struct file *file, void *fh,
|
|
struct v4l2_dv_timings_cap *cap)
|
|
{
|
|
*cap = aspeed_video_timings_cap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_sub_event(struct v4l2_fh *fh,
|
|
const struct v4l2_event_subscription *sub)
|
|
{
|
|
switch (sub->type) {
|
|
case V4L2_EVENT_SOURCE_CHANGE:
|
|
return v4l2_src_change_event_subscribe(fh, sub);
|
|
}
|
|
|
|
return v4l2_ctrl_subscribe_event(fh, sub);
|
|
}
|
|
|
|
static const struct v4l2_ioctl_ops aspeed_video_ioctl_ops = {
|
|
.vidioc_querycap = aspeed_video_querycap,
|
|
|
|
.vidioc_enum_fmt_vid_cap = aspeed_video_enum_format,
|
|
.vidioc_g_fmt_vid_cap = aspeed_video_get_format,
|
|
.vidioc_s_fmt_vid_cap = aspeed_video_get_format,
|
|
.vidioc_try_fmt_vid_cap = aspeed_video_get_format,
|
|
|
|
.vidioc_reqbufs = vb2_ioctl_reqbufs,
|
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
|
.vidioc_expbuf = vb2_ioctl_expbuf,
|
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
|
|
.vidioc_streamon = vb2_ioctl_streamon,
|
|
.vidioc_streamoff = vb2_ioctl_streamoff,
|
|
|
|
.vidioc_enum_input = aspeed_video_enum_input,
|
|
.vidioc_g_input = aspeed_video_get_input,
|
|
.vidioc_s_input = aspeed_video_set_input,
|
|
|
|
.vidioc_g_parm = aspeed_video_get_parm,
|
|
.vidioc_s_parm = aspeed_video_set_parm,
|
|
.vidioc_enum_framesizes = aspeed_video_enum_framesizes,
|
|
.vidioc_enum_frameintervals = aspeed_video_enum_frameintervals,
|
|
|
|
.vidioc_s_dv_timings = aspeed_video_set_dv_timings,
|
|
.vidioc_g_dv_timings = aspeed_video_get_dv_timings,
|
|
.vidioc_query_dv_timings = aspeed_video_query_dv_timings,
|
|
.vidioc_enum_dv_timings = aspeed_video_enum_dv_timings,
|
|
.vidioc_dv_timings_cap = aspeed_video_dv_timings_cap,
|
|
|
|
.vidioc_subscribe_event = aspeed_video_sub_event,
|
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
|
};
|
|
|
|
static void aspeed_video_update_jpeg_quality(struct aspeed_video *video)
|
|
{
|
|
u32 comp_ctrl = FIELD_PREP(VE_COMP_CTRL_DCT_LUM, video->jpeg_quality) |
|
|
FIELD_PREP(VE_COMP_CTRL_DCT_CHR, video->jpeg_quality | 0x10);
|
|
|
|
aspeed_video_update(video, VE_COMP_CTRL,
|
|
VE_COMP_CTRL_DCT_LUM | VE_COMP_CTRL_DCT_CHR,
|
|
comp_ctrl);
|
|
}
|
|
|
|
static void aspeed_video_update_subsampling(struct aspeed_video *video)
|
|
{
|
|
if (video->jpeg.virt)
|
|
aspeed_video_init_jpeg_table(video->jpeg.virt, video->yuv420);
|
|
|
|
if (video->yuv420)
|
|
aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_YUV420);
|
|
else
|
|
aspeed_video_update(video, VE_SEQ_CTRL, VE_SEQ_CTRL_YUV420, 0);
|
|
}
|
|
|
|
static int aspeed_video_set_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct aspeed_video *video = container_of(ctrl->handler,
|
|
struct aspeed_video,
|
|
ctrl_handler);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_JPEG_COMPRESSION_QUALITY:
|
|
video->jpeg_quality = ctrl->val;
|
|
aspeed_video_update_jpeg_quality(video);
|
|
break;
|
|
case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
|
|
if (ctrl->val == V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
|
|
video->yuv420 = true;
|
|
aspeed_video_update_subsampling(video);
|
|
} else {
|
|
video->yuv420 = false;
|
|
aspeed_video_update_subsampling(video);
|
|
}
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops aspeed_video_ctrl_ops = {
|
|
.s_ctrl = aspeed_video_set_ctrl,
|
|
};
|
|
|
|
static void aspeed_video_resolution_work(struct work_struct *work)
|
|
{
|
|
struct delayed_work *dwork = to_delayed_work(work);
|
|
struct aspeed_video *video = container_of(dwork, struct aspeed_video,
|
|
res_work);
|
|
u32 input_status = video->v4l2_input_status;
|
|
|
|
aspeed_video_on(video);
|
|
|
|
/* Exit early in case no clients remain */
|
|
if (test_bit(VIDEO_STOPPED, &video->flags))
|
|
goto done;
|
|
|
|
aspeed_video_init_regs(video);
|
|
|
|
aspeed_video_get_resolution(video);
|
|
|
|
if (video->detected_timings.width != video->active_timings.width ||
|
|
video->detected_timings.height != video->active_timings.height ||
|
|
input_status != video->v4l2_input_status) {
|
|
static const struct v4l2_event ev = {
|
|
.type = V4L2_EVENT_SOURCE_CHANGE,
|
|
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
|
|
};
|
|
|
|
v4l2_event_queue(&video->vdev, &ev);
|
|
} else if (test_bit(VIDEO_STREAMING, &video->flags)) {
|
|
/* No resolution change so just restart streaming */
|
|
aspeed_video_start_frame(video);
|
|
}
|
|
|
|
done:
|
|
clear_bit(VIDEO_RES_CHANGE, &video->flags);
|
|
wake_up_interruptible_all(&video->wait);
|
|
}
|
|
|
|
static int aspeed_video_open(struct file *file)
|
|
{
|
|
int rc;
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
mutex_lock(&video->video_lock);
|
|
|
|
rc = v4l2_fh_open(file);
|
|
if (rc) {
|
|
mutex_unlock(&video->video_lock);
|
|
return rc;
|
|
}
|
|
|
|
if (v4l2_fh_is_singular_file(file))
|
|
aspeed_video_start(video);
|
|
|
|
mutex_unlock(&video->video_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_release(struct file *file)
|
|
{
|
|
int rc;
|
|
struct aspeed_video *video = video_drvdata(file);
|
|
|
|
mutex_lock(&video->video_lock);
|
|
|
|
if (v4l2_fh_is_singular_file(file))
|
|
aspeed_video_stop(video);
|
|
|
|
rc = _vb2_fop_release(file, NULL);
|
|
|
|
mutex_unlock(&video->video_lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static const struct v4l2_file_operations aspeed_video_v4l2_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = vb2_fop_read,
|
|
.poll = vb2_fop_poll,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.mmap = vb2_fop_mmap,
|
|
.open = aspeed_video_open,
|
|
.release = aspeed_video_release,
|
|
};
|
|
|
|
static int aspeed_video_queue_setup(struct vb2_queue *q,
|
|
unsigned int *num_buffers,
|
|
unsigned int *num_planes,
|
|
unsigned int sizes[],
|
|
struct device *alloc_devs[])
|
|
{
|
|
struct aspeed_video *video = vb2_get_drv_priv(q);
|
|
|
|
if (*num_planes) {
|
|
if (sizes[0] < video->max_compressed_size)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
*num_planes = 1;
|
|
sizes[0] = video->max_compressed_size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_buf_prepare(struct vb2_buffer *vb)
|
|
{
|
|
struct aspeed_video *video = vb2_get_drv_priv(vb->vb2_queue);
|
|
|
|
if (vb2_plane_size(vb, 0) < video->max_compressed_size)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_start_streaming(struct vb2_queue *q,
|
|
unsigned int count)
|
|
{
|
|
int rc;
|
|
struct aspeed_video *video = vb2_get_drv_priv(q);
|
|
|
|
video->sequence = 0;
|
|
|
|
rc = aspeed_video_start_frame(video);
|
|
if (rc) {
|
|
aspeed_video_bufs_done(video, VB2_BUF_STATE_QUEUED);
|
|
return rc;
|
|
}
|
|
|
|
set_bit(VIDEO_STREAMING, &video->flags);
|
|
return 0;
|
|
}
|
|
|
|
static void aspeed_video_stop_streaming(struct vb2_queue *q)
|
|
{
|
|
int rc;
|
|
struct aspeed_video *video = vb2_get_drv_priv(q);
|
|
|
|
clear_bit(VIDEO_STREAMING, &video->flags);
|
|
|
|
rc = wait_event_timeout(video->wait,
|
|
!test_bit(VIDEO_FRAME_INPRG, &video->flags),
|
|
STOP_TIMEOUT);
|
|
if (!rc) {
|
|
dev_err(video->dev, "Timed out when stopping streaming\n");
|
|
|
|
/*
|
|
* Need to force stop any DMA and try and get HW into a good
|
|
* state for future calls to start streaming again.
|
|
*/
|
|
aspeed_video_reset(video);
|
|
aspeed_video_init_regs(video);
|
|
|
|
aspeed_video_get_resolution(video);
|
|
}
|
|
|
|
aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR);
|
|
}
|
|
|
|
static void aspeed_video_buf_queue(struct vb2_buffer *vb)
|
|
{
|
|
bool empty;
|
|
struct aspeed_video *video = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
|
struct aspeed_video_buffer *avb = to_aspeed_video_buffer(vbuf);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&video->lock, flags);
|
|
empty = list_empty(&video->buffers);
|
|
list_add_tail(&avb->link, &video->buffers);
|
|
spin_unlock_irqrestore(&video->lock, flags);
|
|
|
|
if (test_bit(VIDEO_STREAMING, &video->flags) &&
|
|
!test_bit(VIDEO_FRAME_INPRG, &video->flags) && empty)
|
|
aspeed_video_start_frame(video);
|
|
}
|
|
|
|
static const struct vb2_ops aspeed_video_vb2_ops = {
|
|
.queue_setup = aspeed_video_queue_setup,
|
|
.wait_prepare = vb2_ops_wait_prepare,
|
|
.wait_finish = vb2_ops_wait_finish,
|
|
.buf_prepare = aspeed_video_buf_prepare,
|
|
.start_streaming = aspeed_video_start_streaming,
|
|
.stop_streaming = aspeed_video_stop_streaming,
|
|
.buf_queue = aspeed_video_buf_queue,
|
|
};
|
|
|
|
static int aspeed_video_setup_video(struct aspeed_video *video)
|
|
{
|
|
const u64 mask = ~(BIT(V4L2_JPEG_CHROMA_SUBSAMPLING_444) |
|
|
BIT(V4L2_JPEG_CHROMA_SUBSAMPLING_420));
|
|
struct v4l2_device *v4l2_dev = &video->v4l2_dev;
|
|
struct vb2_queue *vbq = &video->queue;
|
|
struct video_device *vdev = &video->vdev;
|
|
int rc;
|
|
|
|
video->pix_fmt.pixelformat = V4L2_PIX_FMT_JPEG;
|
|
video->pix_fmt.field = V4L2_FIELD_NONE;
|
|
video->pix_fmt.colorspace = V4L2_COLORSPACE_SRGB;
|
|
video->pix_fmt.quantization = V4L2_QUANTIZATION_FULL_RANGE;
|
|
video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
|
|
|
|
rc = v4l2_device_register(video->dev, v4l2_dev);
|
|
if (rc) {
|
|
dev_err(video->dev, "Failed to register v4l2 device\n");
|
|
return rc;
|
|
}
|
|
|
|
v4l2_ctrl_handler_init(&video->ctrl_handler, 2);
|
|
v4l2_ctrl_new_std(&video->ctrl_handler, &aspeed_video_ctrl_ops,
|
|
V4L2_CID_JPEG_COMPRESSION_QUALITY, 0,
|
|
ASPEED_VIDEO_JPEG_NUM_QUALITIES - 1, 1, 0);
|
|
v4l2_ctrl_new_std_menu(&video->ctrl_handler, &aspeed_video_ctrl_ops,
|
|
V4L2_CID_JPEG_CHROMA_SUBSAMPLING,
|
|
V4L2_JPEG_CHROMA_SUBSAMPLING_420, mask,
|
|
V4L2_JPEG_CHROMA_SUBSAMPLING_444);
|
|
|
|
if (video->ctrl_handler.error) {
|
|
v4l2_ctrl_handler_free(&video->ctrl_handler);
|
|
v4l2_device_unregister(v4l2_dev);
|
|
|
|
dev_err(video->dev, "Failed to init controls: %d\n",
|
|
video->ctrl_handler.error);
|
|
return rc;
|
|
}
|
|
|
|
v4l2_dev->ctrl_handler = &video->ctrl_handler;
|
|
|
|
vbq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
vbq->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF;
|
|
vbq->dev = v4l2_dev->dev;
|
|
vbq->lock = &video->video_lock;
|
|
vbq->ops = &aspeed_video_vb2_ops;
|
|
vbq->mem_ops = &vb2_dma_contig_memops;
|
|
vbq->drv_priv = video;
|
|
vbq->buf_struct_size = sizeof(struct aspeed_video_buffer);
|
|
vbq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
|
vbq->min_buffers_needed = 3;
|
|
|
|
rc = vb2_queue_init(vbq);
|
|
if (rc) {
|
|
v4l2_ctrl_handler_free(&video->ctrl_handler);
|
|
v4l2_device_unregister(v4l2_dev);
|
|
|
|
dev_err(video->dev, "Failed to init vb2 queue\n");
|
|
return rc;
|
|
}
|
|
|
|
vdev->queue = vbq;
|
|
vdev->fops = &aspeed_video_v4l2_fops;
|
|
vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING;
|
|
vdev->v4l2_dev = v4l2_dev;
|
|
strscpy(vdev->name, DEVICE_NAME, sizeof(vdev->name));
|
|
vdev->vfl_type = VFL_TYPE_GRABBER;
|
|
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);
|
|
if (rc) {
|
|
vb2_queue_release(vbq);
|
|
v4l2_ctrl_handler_free(&video->ctrl_handler);
|
|
v4l2_device_unregister(v4l2_dev);
|
|
|
|
dev_err(video->dev, "Failed to register video device\n");
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_init(struct aspeed_video *video)
|
|
{
|
|
int irq;
|
|
int rc;
|
|
struct device *dev = video->dev;
|
|
|
|
irq = irq_of_parse_and_map(dev->of_node, 0);
|
|
if (!irq) {
|
|
dev_err(dev, "Unable to find IRQ\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
rc = devm_request_irq(dev, irq, aspeed_video_irq, IRQF_SHARED,
|
|
DEVICE_NAME, video);
|
|
if (rc < 0) {
|
|
dev_err(dev, "Unable to request IRQ %d\n", irq);
|
|
return rc;
|
|
}
|
|
|
|
video->eclk = devm_clk_get(dev, "eclk");
|
|
if (IS_ERR(video->eclk)) {
|
|
dev_err(dev, "Unable to get ECLK\n");
|
|
return PTR_ERR(video->eclk);
|
|
}
|
|
|
|
video->vclk = devm_clk_get(dev, "vclk");
|
|
if (IS_ERR(video->vclk)) {
|
|
dev_err(dev, "Unable to get VCLK\n");
|
|
return PTR_ERR(video->vclk);
|
|
}
|
|
|
|
video->rst = devm_reset_control_get_exclusive(dev, NULL);
|
|
if (IS_ERR(video->rst)) {
|
|
dev_err(dev, "Unable to get VE reset\n");
|
|
return PTR_ERR(video->rst);
|
|
}
|
|
|
|
rc = of_reserved_mem_device_init(dev);
|
|
if (rc) {
|
|
dev_err(dev, "Unable to reserve memory\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
|
|
if (rc) {
|
|
dev_err(dev, "Failed to set DMA mask\n");
|
|
of_reserved_mem_device_release(dev);
|
|
return rc;
|
|
}
|
|
|
|
if (!aspeed_video_alloc_buf(video, &video->jpeg,
|
|
VE_JPEG_HEADER_SIZE)) {
|
|
dev_err(dev, "Failed to allocate DMA for JPEG header\n");
|
|
of_reserved_mem_device_release(dev);
|
|
return rc;
|
|
}
|
|
|
|
aspeed_video_init_jpeg_table(video->jpeg.virt, video->yuv420);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_probe(struct platform_device *pdev)
|
|
{
|
|
int rc;
|
|
struct resource *res;
|
|
struct aspeed_video *video = kzalloc(sizeof(*video), GFP_KERNEL);
|
|
|
|
if (!video)
|
|
return -ENOMEM;
|
|
|
|
video->frame_rate = 30;
|
|
video->dev = &pdev->dev;
|
|
spin_lock_init(&video->lock);
|
|
mutex_init(&video->video_lock);
|
|
init_waitqueue_head(&video->wait);
|
|
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;
|
|
|
|
rc = aspeed_video_setup_video(video);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aspeed_video_remove(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
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struct aspeed_video *video = to_aspeed_video(v4l2_dev);
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|
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video_unregister_device(&video->vdev);
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|
|
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vb2_queue_release(&video->queue);
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|
|
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v4l2_ctrl_handler_free(&video->ctrl_handler);
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|
|
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v4l2_device_unregister(v4l2_dev);
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|
|
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dma_free_coherent(video->dev, VE_JPEG_HEADER_SIZE, video->jpeg.virt,
|
|
video->jpeg.dma);
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|
|
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of_reserved_mem_device_release(dev);
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|
|
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return 0;
|
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}
|
|
|
|
static const struct of_device_id aspeed_video_of_match[] = {
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|
{ .compatible = "aspeed,ast2400-video-engine" },
|
|
{ .compatible = "aspeed,ast2500-video-engine" },
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, aspeed_video_of_match);
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|
|
|
static struct platform_driver aspeed_video_driver = {
|
|
.driver = {
|
|
.name = DEVICE_NAME,
|
|
.of_match_table = aspeed_video_of_match,
|
|
},
|
|
.probe = aspeed_video_probe,
|
|
.remove = aspeed_video_remove,
|
|
};
|
|
|
|
module_platform_driver(aspeed_video_driver);
|
|
|
|
MODULE_DESCRIPTION("ASPEED Video Engine Driver");
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|
MODULE_AUTHOR("Eddie James");
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|
MODULE_LICENSE("GPL v2");
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