diff options
author | Maxime Jourdan <mjourdan@baylibre.com> | 2019-06-06 12:05:11 -0400 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-06-11 11:25:53 -0400 |
commit | 3e7f51bd96077acad6acd7b45668f65b44233c4e (patch) | |
tree | 83003b083b3c6848d5596468843e8836e29ef58a /drivers/staging | |
parent | a1ccca0e84243c8aa39f4700cecc200b36c6b50f (diff) | |
download | linux-3e7f51bd96077acad6acd7b45668f65b44233c4e.tar.bz2 |
media: meson: add v4l2 m2m video decoder driver
Amlogic SoCs feature a powerful video decoder unit able to
decode many formats, with a performance of usually up to 4k60.
This is a driver for this IP that is based around the v4l2 m2m framework.
It features decoding for:
- MPEG 1
- MPEG 2
Supported SoCs are: GXBB (S905), GXL (S905X/W/D), GXM (S912)
There is also a hardware bitstream parser (ESPARSER) that is handled here.
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/media/Kconfig | 2 | ||||
-rw-r--r-- | drivers/staging/media/Makefile | 1 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/Kconfig | 11 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/Makefile | 8 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/TODO | 8 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/codec_mpeg12.c | 210 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/codec_mpeg12.h | 14 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/dos_regs.h | 98 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/esparser.c | 324 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/esparser.h | 32 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec.c | 1098 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec.h | 267 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_1.c | 230 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_1.h | 14 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_helpers.c | 449 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_helpers.h | 83 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_platform.c | 101 | ||||
-rw-r--r-- | drivers/staging/media/meson/vdec/vdec_platform.h | 30 |
18 files changed, 2980 insertions, 0 deletions
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index 710b085b782f..7212762035b4 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -28,6 +28,8 @@ source "drivers/staging/media/davinci_vpfe/Kconfig" source "drivers/staging/media/imx/Kconfig" +source "drivers/staging/media/meson/vdec/Kconfig" + source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/rockchip/vpu/Kconfig" diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index ea754f9acd53..4222584a9bcb 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_VIDEO_ALLEGRO_DVT) += allegro-dvt/ obj-$(CONFIG_I2C_BCM2048) += bcm2048/ obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx/ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ +obj-$(CONFIG_VIDEO_MESON_VDEC) += meson/vdec/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_VIDEO_SUNXI) += sunxi/ obj-$(CONFIG_TEGRA_VDE) += tegra-vde/ diff --git a/drivers/staging/media/meson/vdec/Kconfig b/drivers/staging/media/meson/vdec/Kconfig new file mode 100644 index 000000000000..9e1450193392 --- /dev/null +++ b/drivers/staging/media/meson/vdec/Kconfig @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 + +config VIDEO_MESON_VDEC + tristate "Amlogic video decoder driver" + depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA + depends on ARCH_MESON || COMPILE_TEST + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + select MESON_CANVAS + help + Support for the video decoder found in gxbb/gxl/gxm chips. diff --git a/drivers/staging/media/meson/vdec/Makefile b/drivers/staging/media/meson/vdec/Makefile new file mode 100644 index 000000000000..6bea129084b7 --- /dev/null +++ b/drivers/staging/media/meson/vdec/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 +# Makefile for Amlogic meson video decoder driver + +meson-vdec-objs = esparser.o vdec.o vdec_helpers.o vdec_platform.o +meson-vdec-objs += vdec_1.o +meson-vdec-objs += codec_mpeg12.o + +obj-$(CONFIG_VIDEO_MESON_VDEC) += meson-vdec.o diff --git a/drivers/staging/media/meson/vdec/TODO b/drivers/staging/media/meson/vdec/TODO new file mode 100644 index 000000000000..70ae990cf13b --- /dev/null +++ b/drivers/staging/media/meson/vdec/TODO @@ -0,0 +1,8 @@ +This driver is in staging until the V4L2 documentation about stateful video +decoders is finalized, as well as the corresponding compliance tests. + +It is at the moment not guaranteed to work properly with a userspace +stack that follows the latest version of the specification, especially +with compression standards like MPEG1/2 where the driver does not support +dynamic resolution switching, including the first one used to determine coded +resolution. diff --git a/drivers/staging/media/meson/vdec/codec_mpeg12.c b/drivers/staging/media/meson/vdec/codec_mpeg12.c new file mode 100644 index 000000000000..5398fbf7ce20 --- /dev/null +++ b/drivers/staging/media/meson/vdec/codec_mpeg12.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-dma-contig.h> + +#include "codec_mpeg12.h" +#include "dos_regs.h" +#include "vdec_helpers.h" + +#define SIZE_WORKSPACE SZ_128K +/* Offset substracted by the firmware from the workspace paddr */ +#define WORKSPACE_OFFSET (5 * SZ_1K) + +/* map firmware registers to known MPEG1/2 functions */ +#define MREG_SEQ_INFO AV_SCRATCH_4 + #define MPEG2_SEQ_DAR_MASK GENMASK(3, 0) + #define MPEG2_DAR_4_3 2 + #define MPEG2_DAR_16_9 3 + #define MPEG2_DAR_221_100 4 +#define MREG_PIC_INFO AV_SCRATCH_5 +#define MREG_PIC_WIDTH AV_SCRATCH_6 +#define MREG_PIC_HEIGHT AV_SCRATCH_7 +#define MREG_BUFFERIN AV_SCRATCH_8 +#define MREG_BUFFEROUT AV_SCRATCH_9 +#define MREG_CMD AV_SCRATCH_A +#define MREG_CO_MV_START AV_SCRATCH_B +#define MREG_ERROR_COUNT AV_SCRATCH_C +#define MREG_FRAME_OFFSET AV_SCRATCH_D +#define MREG_WAIT_BUFFER AV_SCRATCH_E +#define MREG_FATAL_ERROR AV_SCRATCH_F + +#define PICINFO_PROG 0x00008000 +#define PICINFO_TOP_FIRST 0x00002000 + +struct codec_mpeg12 { + /* Buffer for the MPEG1/2 Workspace */ + void *workspace_vaddr; + dma_addr_t workspace_paddr; +}; + +static const u8 eos_sequence[SZ_1K] = { 0x00, 0x00, 0x01, 0xB7 }; + +static const u8 *codec_mpeg12_eos_sequence(u32 *len) +{ + *len = ARRAY_SIZE(eos_sequence); + return eos_sequence; +} + +static int codec_mpeg12_can_recycle(struct amvdec_core *core) +{ + return !amvdec_read_dos(core, MREG_BUFFERIN); +} + +static void codec_mpeg12_recycle(struct amvdec_core *core, u32 buf_idx) +{ + amvdec_write_dos(core, MREG_BUFFERIN, buf_idx + 1); +} + +static int codec_mpeg12_start(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + struct codec_mpeg12 *mpeg12 = sess->priv; + int ret; + + mpeg12 = kzalloc(sizeof(*mpeg12), GFP_KERNEL); + if (!mpeg12) + return -ENOMEM; + + /* Allocate some memory for the MPEG1/2 decoder's state */ + mpeg12->workspace_vaddr = dma_alloc_coherent(core->dev, SIZE_WORKSPACE, + &mpeg12->workspace_paddr, + GFP_KERNEL); + if (!mpeg12->workspace_vaddr) { + dev_err(core->dev, "Failed to request MPEG 1/2 Workspace\n"); + ret = -ENOMEM; + goto free_mpeg12; + } + + ret = amvdec_set_canvases(sess, (u32[]){ AV_SCRATCH_0, 0 }, + (u32[]){ 8, 0 }); + if (ret) + goto free_workspace; + + amvdec_write_dos(core, POWER_CTL_VLD, BIT(4)); + amvdec_write_dos(core, MREG_CO_MV_START, + mpeg12->workspace_paddr + WORKSPACE_OFFSET); + + amvdec_write_dos(core, MPEG1_2_REG, 0); + amvdec_write_dos(core, PSCALE_CTRL, 0); + amvdec_write_dos(core, PIC_HEAD_INFO, 0x380); + amvdec_write_dos(core, M4_CONTROL_REG, 0); + amvdec_write_dos(core, MREG_BUFFERIN, 0); + amvdec_write_dos(core, MREG_BUFFEROUT, 0); + amvdec_write_dos(core, MREG_CMD, (sess->width << 16) | sess->height); + amvdec_write_dos(core, MREG_ERROR_COUNT, 0); + amvdec_write_dos(core, MREG_FATAL_ERROR, 0); + amvdec_write_dos(core, MREG_WAIT_BUFFER, 0); + + sess->keyframe_found = 1; + sess->priv = mpeg12; + + return 0; + +free_workspace: + dma_free_coherent(core->dev, SIZE_WORKSPACE, mpeg12->workspace_vaddr, + mpeg12->workspace_paddr); +free_mpeg12: + kfree(mpeg12); + + return ret; +} + +static int codec_mpeg12_stop(struct amvdec_session *sess) +{ + struct codec_mpeg12 *mpeg12 = sess->priv; + struct amvdec_core *core = sess->core; + + if (mpeg12->workspace_vaddr) + dma_free_coherent(core->dev, SIZE_WORKSPACE, + mpeg12->workspace_vaddr, + mpeg12->workspace_paddr); + + return 0; +} + +static void codec_mpeg12_update_dar(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + u32 seq = amvdec_read_dos(core, MREG_SEQ_INFO); + u32 ar = seq & MPEG2_SEQ_DAR_MASK; + + switch (ar) { + case MPEG2_DAR_4_3: + amvdec_set_par_from_dar(sess, 4, 3); + break; + case MPEG2_DAR_16_9: + amvdec_set_par_from_dar(sess, 16, 9); + break; + case MPEG2_DAR_221_100: + amvdec_set_par_from_dar(sess, 221, 100); + break; + default: + sess->pixelaspect.numerator = 1; + sess->pixelaspect.denominator = 1; + break; + } +} + +static irqreturn_t codec_mpeg12_threaded_isr(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + u32 reg; + u32 pic_info; + u32 is_progressive; + u32 buffer_index; + u32 field = V4L2_FIELD_NONE; + u32 offset; + + amvdec_write_dos(core, ASSIST_MBOX1_CLR_REG, 1); + reg = amvdec_read_dos(core, MREG_FATAL_ERROR); + if (reg == 1) { + dev_err(core->dev, "MPEG1/2 fatal error\n"); + amvdec_abort(sess); + return IRQ_HANDLED; + } + + reg = amvdec_read_dos(core, MREG_BUFFEROUT); + if (!reg) + return IRQ_HANDLED; + + /* Unclear what this means */ + if ((reg & GENMASK(23, 17)) == GENMASK(23, 17)) + goto end; + + pic_info = amvdec_read_dos(core, MREG_PIC_INFO); + is_progressive = pic_info & PICINFO_PROG; + + if (!is_progressive) + field = (pic_info & PICINFO_TOP_FIRST) ? + V4L2_FIELD_INTERLACED_TB : + V4L2_FIELD_INTERLACED_BT; + + codec_mpeg12_update_dar(sess); + buffer_index = ((reg & 0xf) - 1) & 7; + offset = amvdec_read_dos(core, MREG_FRAME_OFFSET); + amvdec_dst_buf_done_idx(sess, buffer_index, offset, field); + +end: + amvdec_write_dos(core, MREG_BUFFEROUT, 0); + return IRQ_HANDLED; +} + +static irqreturn_t codec_mpeg12_isr(struct amvdec_session *sess) +{ + return IRQ_WAKE_THREAD; +} + +struct amvdec_codec_ops codec_mpeg12_ops = { + .start = codec_mpeg12_start, + .stop = codec_mpeg12_stop, + .isr = codec_mpeg12_isr, + .threaded_isr = codec_mpeg12_threaded_isr, + .can_recycle = codec_mpeg12_can_recycle, + .recycle = codec_mpeg12_recycle, + .eos_sequence = codec_mpeg12_eos_sequence, +}; diff --git a/drivers/staging/media/meson/vdec/codec_mpeg12.h b/drivers/staging/media/meson/vdec/codec_mpeg12.h new file mode 100644 index 000000000000..43cab5f39ca0 --- /dev/null +++ b/drivers/staging/media/meson/vdec/codec_mpeg12.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_CODEC_MPEG12_H_ +#define __MESON_VDEC_CODEC_MPEG12_H_ + +#include "vdec.h" + +extern struct amvdec_codec_ops codec_mpeg12_ops; + +#endif diff --git a/drivers/staging/media/meson/vdec/dos_regs.h b/drivers/staging/media/meson/vdec/dos_regs.h new file mode 100644 index 000000000000..abd810542dbb --- /dev/null +++ b/drivers/staging/media/meson/vdec/dos_regs.h @@ -0,0 +1,98 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_DOS_REGS_H_ +#define __MESON_VDEC_DOS_REGS_H_ + +/* DOS registers */ +#define VDEC_ASSIST_AMR1_INT8 0x00b4 + +#define ASSIST_MBOX1_CLR_REG 0x01d4 +#define ASSIST_MBOX1_MASK 0x01d8 + +#define MPSR 0x0c04 +#define MCPU_INTR_MSK 0x0c10 +#define CPSR 0x0c84 + +#define IMEM_DMA_CTRL 0x0d00 +#define IMEM_DMA_ADR 0x0d04 +#define IMEM_DMA_COUNT 0x0d08 +#define LMEM_DMA_CTRL 0x0d40 + +#define MC_STATUS0 0x2424 +#define MC_CTRL1 0x242c + +#define PSCALE_RST 0x2440 +#define PSCALE_CTRL 0x2444 +#define PSCALE_BMEM_ADDR 0x247c +#define PSCALE_BMEM_DAT 0x2480 + +#define DBLK_CTRL 0x2544 +#define DBLK_STATUS 0x254c + +#define GCLK_EN 0x260c +#define MDEC_PIC_DC_CTRL 0x2638 +#define MDEC_PIC_DC_STATUS 0x263c +#define ANC0_CANVAS_ADDR 0x2640 +#define MDEC_PIC_DC_THRESH 0x26e0 + +/* Firmware interface registers */ +#define AV_SCRATCH_0 0x2700 +#define AV_SCRATCH_1 0x2704 +#define AV_SCRATCH_2 0x2708 +#define AV_SCRATCH_3 0x270c +#define AV_SCRATCH_4 0x2710 +#define AV_SCRATCH_5 0x2714 +#define AV_SCRATCH_6 0x2718 +#define AV_SCRATCH_7 0x271c +#define AV_SCRATCH_8 0x2720 +#define AV_SCRATCH_9 0x2724 +#define AV_SCRATCH_A 0x2728 +#define AV_SCRATCH_B 0x272c +#define AV_SCRATCH_C 0x2730 +#define AV_SCRATCH_D 0x2734 +#define AV_SCRATCH_E 0x2738 +#define AV_SCRATCH_F 0x273c +#define AV_SCRATCH_G 0x2740 +#define AV_SCRATCH_H 0x2744 +#define AV_SCRATCH_I 0x2748 +#define AV_SCRATCH_J 0x274c +#define AV_SCRATCH_K 0x2750 +#define AV_SCRATCH_L 0x2754 + +#define MPEG1_2_REG 0x3004 +#define PIC_HEAD_INFO 0x300c +#define POWER_CTL_VLD 0x3020 +#define M4_CONTROL_REG 0x30a4 + +/* Stream Buffer (stbuf) regs */ +#define VLD_MEM_VIFIFO_START_PTR 0x3100 +#define VLD_MEM_VIFIFO_CURR_PTR 0x3104 +#define VLD_MEM_VIFIFO_END_PTR 0x3108 +#define VLD_MEM_VIFIFO_CONTROL 0x3110 + #define MEM_FIFO_CNT_BIT 16 + #define MEM_FILL_ON_LEVEL BIT(10) + #define MEM_CTRL_EMPTY_EN BIT(2) + #define MEM_CTRL_FILL_EN BIT(1) +#define VLD_MEM_VIFIFO_WP 0x3114 +#define VLD_MEM_VIFIFO_RP 0x3118 +#define VLD_MEM_VIFIFO_LEVEL 0x311c +#define VLD_MEM_VIFIFO_BUF_CNTL 0x3120 + #define MEM_BUFCTRL_MANUAL BIT(1) +#define VLD_MEM_VIFIFO_WRAP_COUNT 0x3144 + +#define DCAC_DMA_CTRL 0x3848 + +#define DOS_SW_RESET0 0xfc00 +#define DOS_GCLK_EN0 0xfc04 +#define DOS_GEN_CTRL0 0xfc08 +#define DOS_MEM_PD_VDEC 0xfcc0 +#define DOS_MEM_PD_HEVC 0xfccc +#define DOS_SW_RESET3 0xfcd0 +#define DOS_GCLK_EN3 0xfcd4 +#define DOS_VDEC_MCRCC_STALL_CTRL 0xfd00 + +#endif diff --git a/drivers/staging/media/meson/vdec/esparser.c b/drivers/staging/media/meson/vdec/esparser.c new file mode 100644 index 000000000000..3a21a8cec799 --- /dev/null +++ b/drivers/staging/media/meson/vdec/esparser.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + * + * The Elementary Stream Parser is a HW bitstream parser. + * It reads bitstream buffers and feeds them to the VIFIFO + */ + +#include <linux/init.h> +#include <linux/ioctl.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/reset.h> +#include <linux/interrupt.h> +#include <media/videobuf2-dma-contig.h> +#include <media/v4l2-mem2mem.h> + +#include "dos_regs.h" +#include "esparser.h" +#include "vdec_helpers.h" + +/* PARSER REGS (CBUS) */ +#define PARSER_CONTROL 0x00 + #define ES_PACK_SIZE_BIT 8 + #define ES_WRITE BIT(5) + #define ES_SEARCH BIT(1) + #define ES_PARSER_START BIT(0) +#define PARSER_FETCH_ADDR 0x4 +#define PARSER_FETCH_CMD 0x8 +#define PARSER_CONFIG 0x14 + #define PS_CFG_MAX_FETCH_CYCLE_BIT 0 + #define PS_CFG_STARTCODE_WID_24_BIT 10 + #define PS_CFG_MAX_ES_WR_CYCLE_BIT 12 + #define PS_CFG_PFIFO_EMPTY_CNT_BIT 16 +#define PFIFO_WR_PTR 0x18 +#define PFIFO_RD_PTR 0x1c +#define PARSER_SEARCH_PATTERN 0x24 + #define ES_START_CODE_PATTERN 0x00000100 +#define PARSER_SEARCH_MASK 0x28 + #define ES_START_CODE_MASK 0xffffff00 + #define FETCH_ENDIAN_BIT 27 +#define PARSER_INT_ENABLE 0x2c + #define PARSER_INT_HOST_EN_BIT 8 +#define PARSER_INT_STATUS 0x30 + #define PARSER_INTSTAT_SC_FOUND 1 +#define PARSER_ES_CONTROL 0x5c +#define PARSER_VIDEO_START_PTR 0x80 +#define PARSER_VIDEO_END_PTR 0x84 +#define PARSER_VIDEO_WP 0x88 +#define PARSER_VIDEO_HOLE 0x90 + +#define SEARCH_PATTERN_LEN 512 + +static DECLARE_WAIT_QUEUE_HEAD(wq); +static int search_done; + +static irqreturn_t esparser_isr(int irq, void *dev) +{ + int int_status; + struct amvdec_core *core = dev; + + int_status = amvdec_read_parser(core, PARSER_INT_STATUS); + amvdec_write_parser(core, PARSER_INT_STATUS, int_status); + + if (int_status & PARSER_INTSTAT_SC_FOUND) { + amvdec_write_parser(core, PFIFO_RD_PTR, 0); + amvdec_write_parser(core, PFIFO_WR_PTR, 0); + search_done = 1; + wake_up_interruptible(&wq); + } + + return IRQ_HANDLED; +} + +/* Pad the packet to at least 4KiB bytes otherwise the VDEC unit won't trigger + * ISRs. + * Also append a start code 000001ff at the end to trigger + * the ESPARSER interrupt. + */ +static u32 esparser_pad_start_code(struct vb2_buffer *vb) +{ + u32 payload_size = vb2_get_plane_payload(vb, 0); + u32 pad_size = 0; + u8 *vaddr = vb2_plane_vaddr(vb, 0) + payload_size; + + if (payload_size < ESPARSER_MIN_PACKET_SIZE) { + pad_size = ESPARSER_MIN_PACKET_SIZE - payload_size; + memset(vaddr, 0, pad_size); + } + + memset(vaddr + pad_size, 0, SEARCH_PATTERN_LEN); + vaddr[pad_size] = 0x00; + vaddr[pad_size + 1] = 0x00; + vaddr[pad_size + 2] = 0x01; + vaddr[pad_size + 3] = 0xff; + + return pad_size; +} + +static int +esparser_write_data(struct amvdec_core *core, dma_addr_t addr, u32 size) +{ + amvdec_write_parser(core, PFIFO_RD_PTR, 0); + amvdec_write_parser(core, PFIFO_WR_PTR, 0); + amvdec_write_parser(core, PARSER_CONTROL, + ES_WRITE | + ES_PARSER_START | + ES_SEARCH | + (size << ES_PACK_SIZE_BIT)); + + amvdec_write_parser(core, PARSER_FETCH_ADDR, addr); + amvdec_write_parser(core, PARSER_FETCH_CMD, + (7 << FETCH_ENDIAN_BIT) | + (size + SEARCH_PATTERN_LEN)); + + search_done = 0; + return wait_event_interruptible_timeout(wq, search_done, (HZ / 5)); +} + +static u32 esparser_vififo_get_free_space(struct amvdec_session *sess) +{ + u32 vififo_usage; + struct amvdec_ops *vdec_ops = sess->fmt_out->vdec_ops; + struct amvdec_core *core = sess->core; + + vififo_usage = vdec_ops->vififo_level(sess); + vififo_usage += amvdec_read_parser(core, PARSER_VIDEO_HOLE); + vififo_usage += (6 * SZ_1K); // 6 KiB internal fifo + + if (vififo_usage > sess->vififo_size) { + dev_warn(sess->core->dev, + "VIFIFO usage (%u) > VIFIFO size (%u)\n", + vififo_usage, sess->vififo_size); + return 0; + } + + return sess->vififo_size - vififo_usage; +} + +int esparser_queue_eos(struct amvdec_core *core, const u8 *data, u32 len) +{ + struct device *dev = core->dev; + void *eos_vaddr; + dma_addr_t eos_paddr; + int ret; + + eos_vaddr = dma_alloc_coherent(dev, len + SEARCH_PATTERN_LEN, + &eos_paddr, GFP_KERNEL); + if (!eos_vaddr) + return -ENOMEM; + + memcpy(eos_vaddr, data, len); + ret = esparser_write_data(core, eos_paddr, len); + dma_free_coherent(dev, len + SEARCH_PATTERN_LEN, + eos_vaddr, eos_paddr); + + return ret; +} + +static u32 esparser_get_offset(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + u32 offset = amvdec_read_parser(core, PARSER_VIDEO_WP) - + sess->vififo_paddr; + + if (offset < sess->last_offset) + sess->wrap_count++; + + sess->last_offset = offset; + offset += (sess->wrap_count * sess->vififo_size); + + return offset; +} + +static int +esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf) +{ + int ret; + struct vb2_buffer *vb = &vbuf->vb2_buf; + struct amvdec_core *core = sess->core; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + u32 num_dst_bufs = 0; + u32 payload_size = vb2_get_plane_payload(vb, 0); + dma_addr_t phy = vb2_dma_contig_plane_dma_addr(vb, 0); + u32 offset; + u32 pad_size; + + if (codec_ops->num_pending_bufs) + num_dst_bufs = codec_ops->num_pending_bufs(sess); + + num_dst_bufs += v4l2_m2m_num_dst_bufs_ready(sess->m2m_ctx); + + if (esparser_vififo_get_free_space(sess) < payload_size || + atomic_read(&sess->esparser_queued_bufs) >= num_dst_bufs) + return -EAGAIN; + + v4l2_m2m_src_buf_remove_by_buf(sess->m2m_ctx, vbuf); + + offset = esparser_get_offset(sess); + + amvdec_add_ts_reorder(sess, vb->timestamp, offset); + dev_dbg(core->dev, "esparser: ts = %llu pld_size = %u offset = %08X\n", + vb->timestamp, payload_size, offset); + + pad_size = esparser_pad_start_code(vb); + ret = esparser_write_data(core, phy, payload_size + pad_size); + + if (ret <= 0) { + dev_warn(core->dev, "esparser: input parsing error\n"); + amvdec_remove_ts(sess, vb->timestamp); + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); + amvdec_write_parser(core, PARSER_FETCH_CMD, 0); + + return 0; + } + + /* We need to wait until we parse the first keyframe. + * All buffers prior to the first keyframe must be dropped. + */ + if (!sess->keyframe_found) + usleep_range(1000, 2000); + + if (sess->keyframe_found) + atomic_inc(&sess->esparser_queued_bufs); + else + amvdec_remove_ts(sess, vb->timestamp); + + vbuf->flags = 0; + vbuf->field = V4L2_FIELD_NONE; + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE); + + return 0; +} + +void esparser_queue_all_src(struct work_struct *work) +{ + struct v4l2_m2m_buffer *buf, *n; + struct amvdec_session *sess = + container_of(work, struct amvdec_session, esparser_queue_work); + + mutex_lock(&sess->lock); + v4l2_m2m_for_each_src_buf_safe(sess->m2m_ctx, buf, n) { + if (sess->should_stop) + break; + + if (esparser_queue(sess, &buf->vb) < 0) + break; + } + mutex_unlock(&sess->lock); +} + +int esparser_power_up(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + struct amvdec_ops *vdec_ops = sess->fmt_out->vdec_ops; + + reset_control_reset(core->esparser_reset); + amvdec_write_parser(core, PARSER_CONFIG, + (10 << PS_CFG_PFIFO_EMPTY_CNT_BIT) | + (1 << PS_CFG_MAX_ES_WR_CYCLE_BIT) | + (16 << PS_CFG_MAX_FETCH_CYCLE_BIT)); + + amvdec_write_parser(core, PFIFO_RD_PTR, 0); + amvdec_write_parser(core, PFIFO_WR_PTR, 0); + + amvdec_write_parser(core, PARSER_SEARCH_PATTERN, + ES_START_CODE_PATTERN); + amvdec_write_parser(core, PARSER_SEARCH_MASK, ES_START_CODE_MASK); + + amvdec_write_parser(core, PARSER_CONFIG, + (10 << PS_CFG_PFIFO_EMPTY_CNT_BIT) | + (1 << PS_CFG_MAX_ES_WR_CYCLE_BIT) | + (16 << PS_CFG_MAX_FETCH_CYCLE_BIT) | + (2 << PS_CFG_STARTCODE_WID_24_BIT)); + + amvdec_write_parser(core, PARSER_CONTROL, + (ES_SEARCH | ES_PARSER_START)); + + amvdec_write_parser(core, PARSER_VIDEO_START_PTR, sess->vififo_paddr); + amvdec_write_parser(core, PARSER_VIDEO_END_PTR, + sess->vififo_paddr + sess->vififo_size - 8); + amvdec_write_parser(core, PARSER_ES_CONTROL, + amvdec_read_parser(core, PARSER_ES_CONTROL) & ~1); + + if (vdec_ops->conf_esparser) + vdec_ops->conf_esparser(sess); + + amvdec_write_parser(core, PARSER_INT_STATUS, 0xffff); + amvdec_write_parser(core, PARSER_INT_ENABLE, + BIT(PARSER_INT_HOST_EN_BIT)); + + return 0; +} + +int esparser_init(struct platform_device *pdev, struct amvdec_core *core) +{ + struct device *dev = &pdev->dev; + int ret; + int irq; + + irq = platform_get_irq_byname(pdev, "esparser"); + if (irq < 0) { + dev_err(dev, "Failed getting ESPARSER IRQ from dtb\n"); + return irq; + } + + ret = devm_request_irq(dev, irq, esparser_isr, IRQF_SHARED, + "esparserirq", core); + if (ret) { + dev_err(dev, "Failed requesting ESPARSER IRQ\n"); + return ret; + } + + core->esparser_reset = + devm_reset_control_get_exclusive(dev, "esparser"); + if (IS_ERR(core->esparser_reset)) { + dev_err(dev, "Failed to get esparser_reset\n"); + return PTR_ERR(core->esparser_reset); + } + + return 0; +} diff --git a/drivers/staging/media/meson/vdec/esparser.h b/drivers/staging/media/meson/vdec/esparser.h new file mode 100644 index 000000000000..ff51fe7fda66 --- /dev/null +++ b/drivers/staging/media/meson/vdec/esparser.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_ESPARSER_H_ +#define __MESON_VDEC_ESPARSER_H_ + +#include <linux/platform_device.h> + +#include "vdec.h" + +int esparser_init(struct platform_device *pdev, struct amvdec_core *core); +int esparser_power_up(struct amvdec_session *sess); + +/** + * esparser_queue_eos() - write End Of Stream sequence to the ESPARSER + * + * @core vdec core struct + */ +int esparser_queue_eos(struct amvdec_core *core, const u8 *data, u32 len); + +/** + * esparser_queue_all_src() - work handler that writes as many src buffers + * as possible to the ESPARSER + */ +void esparser_queue_all_src(struct work_struct *work); + +#define ESPARSER_MIN_PACKET_SIZE SZ_4K + +#endif diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c new file mode 100644 index 000000000000..4e4f9d614e41 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec.c @@ -0,0 +1,1098 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#include <linux/of_device.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/mfd/syscon.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-dev.h> +#include <media/videobuf2-dma-contig.h> + +#include "vdec.h" +#include "esparser.h" +#include "vdec_helpers.h" + +struct dummy_buf { + struct vb2_v4l2_buffer vb; + struct list_head list; +}; + +/* 16 MiB for parsed bitstream swap exchange */ +#define SIZE_VIFIFO SZ_16M + +static u32 get_output_size(u32 width, u32 height) +{ + return ALIGN(width * height, SZ_64K); +} + +u32 amvdec_get_output_size(struct amvdec_session *sess) +{ + return get_output_size(sess->width, sess->height); +} +EXPORT_SYMBOL_GPL(amvdec_get_output_size); + +static int vdec_codec_needs_recycle(struct amvdec_session *sess) +{ + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + + return codec_ops->can_recycle && codec_ops->recycle; +} + +static int vdec_recycle_thread(void *data) +{ + struct amvdec_session *sess = data; + struct amvdec_core *core = sess->core; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + struct amvdec_buffer *tmp, *n; + + while (!kthread_should_stop()) { + mutex_lock(&sess->bufs_recycle_lock); + list_for_each_entry_safe(tmp, n, &sess->bufs_recycle, list) { + if (!codec_ops->can_recycle(core)) + break; + + codec_ops->recycle(core, tmp->vb->index); + list_del(&tmp->list); + kfree(tmp); + } + mutex_unlock(&sess->bufs_recycle_lock); + + usleep_range(5000, 10000); + } + + return 0; +} + +static int vdec_poweron(struct amvdec_session *sess) +{ + int ret; + struct amvdec_ops *vdec_ops = sess->fmt_out->vdec_ops; + + ret = clk_prepare_enable(sess->core->dos_parser_clk); + if (ret) + return ret; + + ret = clk_prepare_enable(sess->core->dos_clk); + if (ret) + goto disable_dos_parser; + + ret = vdec_ops->start(sess); + if (ret) + goto disable_dos; + + esparser_power_up(sess); + + return 0; + +disable_dos: + clk_disable_unprepare(sess->core->dos_clk); +disable_dos_parser: + clk_disable_unprepare(sess->core->dos_parser_clk); + + return ret; +} + +static void vdec_wait_inactive(struct amvdec_session *sess) +{ + /* We consider 50ms with no IRQ to be inactive. */ + while (time_is_after_jiffies64(sess->last_irq_jiffies + + msecs_to_jiffies(50))) + msleep(25); +} + +static void vdec_poweroff(struct amvdec_session *sess) +{ + struct amvdec_ops *vdec_ops = sess->fmt_out->vdec_ops; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + + sess->should_stop = 1; + vdec_wait_inactive(sess); + if (codec_ops->drain) + codec_ops->drain(sess); + + vdec_ops->stop(sess); + clk_disable_unprepare(sess->core->dos_clk); + clk_disable_unprepare(sess->core->dos_parser_clk); +} + +static void +vdec_queue_recycle(struct amvdec_session *sess, struct vb2_buffer *vb) +{ + struct amvdec_buffer *new_buf; + + new_buf = kmalloc(sizeof(*new_buf), GFP_KERNEL); + new_buf->vb = vb; + + mutex_lock(&sess->bufs_recycle_lock); + list_add_tail(&new_buf->list, &sess->bufs_recycle); + mutex_unlock(&sess->bufs_recycle_lock); +} + +static void vdec_m2m_device_run(void *priv) +{ + struct amvdec_session *sess = priv; + + schedule_work(&sess->esparser_queue_work); +} + +static void vdec_m2m_job_abort(void *priv) +{ + struct amvdec_session *sess = priv; + + v4l2_m2m_job_finish(sess->m2m_dev, sess->m2m_ctx); +} + +static const struct v4l2_m2m_ops vdec_m2m_ops = { + .device_run = vdec_m2m_device_run, + .job_abort = vdec_m2m_job_abort, +}; + +static void process_num_buffers(struct vb2_queue *q, + struct amvdec_session *sess, + unsigned int *num_buffers, + bool is_reqbufs) +{ + const struct amvdec_format *fmt_out = sess->fmt_out; + unsigned int buffers_total = q->num_buffers + *num_buffers; + + if (is_reqbufs && buffers_total < fmt_out->min_buffers) + *num_buffers = fmt_out->min_buffers - q->num_buffers; + if (buffers_total > fmt_out->max_buffers) + *num_buffers = fmt_out->max_buffers - q->num_buffers; + + /* We need to program the complete CAPTURE buffer list + * in registers during start_streaming, and the firmwares + * are free to choose any of them to write frames to. As such, + * we need all of them to be queued into the driver + */ + sess->num_dst_bufs = q->num_buffers + *num_buffers; + q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs); +} + +static int vdec_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, + unsigned int *num_planes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct amvdec_session *sess = vb2_get_drv_priv(q); + u32 output_size = amvdec_get_output_size(sess); + + if (*num_planes) { + switch (q->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + if (*num_planes != 1 || sizes[0] < output_size) + return -EINVAL; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + switch (sess->pixfmt_cap) { + case V4L2_PIX_FMT_NV12M: + if (*num_planes != 2 || + sizes[0] < output_size || + sizes[1] < output_size / 2) + return -EINVAL; + break; + case V4L2_PIX_FMT_YUV420M: + if (*num_planes != 3 || + sizes[0] < output_size || + sizes[1] < output_size / 4 || + sizes[2] < output_size / 4) + return -EINVAL; + break; + default: + return -EINVAL; + } + + process_num_buffers(q, sess, num_buffers, false); + break; + } + + return 0; + } + + switch (q->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + sizes[0] = amvdec_get_output_size(sess); + *num_planes = 1; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + switch (sess->pixfmt_cap) { + case V4L2_PIX_FMT_NV12M: + sizes[0] = output_size; + sizes[1] = output_size / 2; + *num_planes = 2; + break; + case V4L2_PIX_FMT_YUV420M: + sizes[0] = output_size; + sizes[1] = output_size / 4; + sizes[2] = output_size / 4; + *num_planes = 3; + break; + default: + return -EINVAL; + } + + process_num_buffers(q, sess, num_buffers, true); + break; + default: + return -EINVAL; + } + + return 0; +} + +static void vdec_vb2_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct amvdec_session *sess = vb2_get_drv_priv(vb->vb2_queue); + struct v4l2_m2m_ctx *m2m_ctx = sess->m2m_ctx; + + v4l2_m2m_buf_queue(m2m_ctx, vbuf); + + if (!sess->streamon_out || !sess->streamon_cap) + return; + + if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && + vdec_codec_needs_recycle(sess)) + vdec_queue_recycle(sess, vb); + + schedule_work(&sess->esparser_queue_work); +} + +static int vdec_start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct amvdec_session *sess = vb2_get_drv_priv(q); + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + struct amvdec_core *core = sess->core; + struct vb2_v4l2_buffer *buf; + int ret; + + if (core->cur_sess && core->cur_sess != sess) { + ret = -EBUSY; + goto bufs_done; + } + + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + sess->streamon_out = 1; + else + sess->streamon_cap = 1; + + if (!sess->streamon_out || !sess->streamon_cap) + return 0; + + if (sess->status == STATUS_NEEDS_RESUME && + q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + codec_ops->resume(sess); + sess->status = STATUS_RUNNING; + return 0; + } + + sess->vififo_size = SIZE_VIFIFO; + sess->vififo_vaddr = + dma_alloc_coherent(sess->core->dev, sess->vififo_size, + &sess->vififo_paddr, GFP_KERNEL); + if (!sess->vififo_vaddr) { + dev_err(sess->core->dev, "Failed to request VIFIFO buffer\n"); + ret = -ENOMEM; + goto bufs_done; + } + + sess->should_stop = 0; + sess->keyframe_found = 0; + sess->last_offset = 0; + sess->wrap_count = 0; + sess->pixelaspect.numerator = 1; + sess->pixelaspect.denominator = 1; + atomic_set(&sess->esparser_queued_bufs, 0); + v4l2_ctrl_s_ctrl(sess->ctrl_min_buf_capture, 1); + + ret = vdec_poweron(sess); + if (ret) + goto vififo_free; + + sess->sequence_cap = 0; + if (vdec_codec_needs_recycle(sess)) + sess->recycle_thread = kthread_run(vdec_recycle_thread, sess, + "vdec_recycle"); + + sess->status = STATUS_RUNNING; + core->cur_sess = sess; + + return 0; + +vififo_free: + dma_free_coherent(sess->core->dev, sess->vififo_size, + sess->vififo_vaddr, sess->vififo_paddr); +bufs_done: + while ((buf = v4l2_m2m_src_buf_remove(sess->m2m_ctx))) + v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED); + while ((buf = v4l2_m2m_dst_buf_remove(sess->m2m_ctx))) + v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED); + + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + sess->streamon_out = 0; + else + sess->streamon_cap = 0; + + return ret; +} + +static void vdec_free_canvas(struct amvdec_session *sess) +{ + int i; + + for (i = 0; i < sess->canvas_num; ++i) + meson_canvas_free(sess->core->canvas, sess->canvas_alloc[i]); + + sess->canvas_num = 0; +} + +static void vdec_reset_timestamps(struct amvdec_session *sess) +{ + struct amvdec_timestamp *tmp, *n; + + list_for_each_entry_safe(tmp, n, &sess->timestamps, list) { + list_del(&tmp->list); + kfree(tmp); + } +} + +static void vdec_reset_bufs_recycle(struct amvdec_session *sess) +{ + struct amvdec_buffer *tmp, *n; + + list_for_each_entry_safe(tmp, n, &sess->bufs_recycle, list) { + list_del(&tmp->list); + kfree(tmp); + } +} + +static void vdec_stop_streaming(struct vb2_queue *q) +{ + struct amvdec_session *sess = vb2_get_drv_priv(q); + struct amvdec_core *core = sess->core; + struct vb2_v4l2_buffer *buf; + + if (sess->status == STATUS_RUNNING || + (sess->status == STATUS_NEEDS_RESUME && + (!sess->streamon_out || !sess->streamon_cap))) { + if (vdec_codec_needs_recycle(sess)) + kthread_stop(sess->recycle_thread); + + vdec_poweroff(sess); + vdec_free_canvas(sess); + dma_free_coherent(sess->core->dev, sess->vififo_size, + sess->vififo_vaddr, sess->vififo_paddr); + vdec_reset_timestamps(sess); + vdec_reset_bufs_recycle(sess); + kfree(sess->priv); + sess->priv = NULL; + core->cur_sess = NULL; + sess->status = STATUS_STOPPED; + } + + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + while ((buf = v4l2_m2m_src_buf_remove(sess->m2m_ctx))) + v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR); + + sess->streamon_out = 0; + } else { + while ((buf = v4l2_m2m_dst_buf_remove(sess->m2m_ctx))) + v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR); + + sess->streamon_cap = 0; + } +} + +static int vdec_vb2_buf_prepare(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + + vbuf->field = V4L2_FIELD_NONE; + return 0; +} + +static const struct vb2_ops vdec_vb2_ops = { + .queue_setup = vdec_queue_setup, + .start_streaming = vdec_start_streaming, + .stop_streaming = vdec_stop_streaming, + .buf_queue = vdec_vb2_buf_queue, + .buf_prepare = vdec_vb2_buf_prepare, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static int +vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap) +{ + strscpy(cap->driver, "meson-vdec", sizeof(cap->driver)); + strscpy(cap->card, "Amlogic Video Decoder", sizeof(cap->card)); + strscpy(cap->bus_info, "platform:meson-vdec", sizeof(cap->bus_info)); + + return 0; +} + +static const struct amvdec_format * +find_format(const struct amvdec_format *fmts, u32 size, u32 pixfmt) +{ + unsigned int i; + + for (i = 0; i < size; i++) { + if (fmts[i].pixfmt == pixfmt) + return &fmts[i]; + } + + return NULL; +} + +static unsigned int +vdec_supports_pixfmt_cap(const struct amvdec_format *fmt_out, u32 pixfmt_cap) +{ + int i; + + for (i = 0; fmt_out->pixfmts_cap[i]; i++) + if (fmt_out->pixfmts_cap[i] == pixfmt_cap) + return 1; + + return 0; +} + +static const struct amvdec_format * +vdec_try_fmt_common(struct amvdec_session *sess, u32 size, + struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt; + const struct amvdec_format *fmts = sess->core->platform->formats; + const struct amvdec_format *fmt_out; + + memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved)); + memset(pixmp->reserved, 0, sizeof(pixmp->reserved)); + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + fmt_out = find_format(fmts, size, pixmp->pixelformat); + if (!fmt_out) { + pixmp->pixelformat = V4L2_PIX_FMT_MPEG2; + fmt_out = find_format(fmts, size, pixmp->pixelformat); + } + + pfmt[0].sizeimage = + get_output_size(pixmp->width, pixmp->height); + pfmt[0].bytesperline = 0; + pixmp->num_planes = 1; + } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + fmt_out = sess->fmt_out; + if (!vdec_supports_pixfmt_cap(fmt_out, pixmp->pixelformat)) + pixmp->pixelformat = fmt_out->pixfmts_cap[0]; + + memset(pfmt[1].reserved, 0, sizeof(pfmt[1].reserved)); + if (pixmp->pixelformat == V4L2_PIX_FMT_NV12M) { + pfmt[0].sizeimage = + get_output_size(pixmp->width, pixmp->height); + pfmt[0].bytesperline = ALIGN(pixmp->width, 64); + + pfmt[1].sizeimage = + get_output_size(pixmp->width, pixmp->height) / 2; + pfmt[1].bytesperline = ALIGN(pixmp->width, 64); + pixmp->num_planes = 2; + } else if (pixmp->pixelformat == V4L2_PIX_FMT_YUV420M) { + pfmt[0].sizeimage = + get_output_size(pixmp->width, pixmp->height); + pfmt[0].bytesperline = ALIGN(pixmp->width, 64); + + pfmt[1].sizeimage = + get_output_size(pixmp->width, pixmp->height) / 4; + pfmt[1].bytesperline = ALIGN(pixmp->width, 64) / 2; + + pfmt[2].sizeimage = + get_output_size(pixmp->width, pixmp->height) / 4; + pfmt[2].bytesperline = ALIGN(pixmp->width, 64) / 2; + pixmp->num_planes = 3; + } + } else { + return NULL; + } + + pixmp->width = clamp(pixmp->width, (u32)256, fmt_out->max_width); + pixmp->height = clamp(pixmp->height, (u32)144, fmt_out->max_height); + + if (pixmp->field == V4L2_FIELD_ANY) + pixmp->field = V4L2_FIELD_NONE; + + return fmt_out; +} + +static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + + vdec_try_fmt_common(sess, sess->core->platform->num_formats, f); + + return 0; +} + +static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; + + if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + pixmp->pixelformat = sess->pixfmt_cap; + else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + pixmp->pixelformat = sess->fmt_out->pixfmt; + + if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + pixmp->width = sess->width; + pixmp->height = sess->height; + pixmp->colorspace = sess->colorspace; + pixmp->ycbcr_enc = sess->ycbcr_enc; + pixmp->quantization = sess->quantization; + pixmp->xfer_func = sess->xfer_func; + } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + pixmp->width = sess->width; + pixmp->height = sess->height; + } + + vdec_try_fmt_common(sess, sess->core->platform->num_formats, f); + + return 0; +} + +static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp; + u32 num_formats = sess->core->platform->num_formats; + const struct amvdec_format *fmt_out; + struct v4l2_pix_format_mplane orig_pixmp; + struct v4l2_format format; + u32 pixfmt_out = 0, pixfmt_cap = 0; + + orig_pixmp = *pixmp; + + fmt_out = vdec_try_fmt_common(sess, num_formats, f); + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + pixfmt_out = pixmp->pixelformat; + pixfmt_cap = sess->pixfmt_cap; + } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + pixfmt_cap = pixmp->pixelformat; + pixfmt_out = sess->fmt_out->pixfmt; + } + + memset(&format, 0, sizeof(format)); + + format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + format.fmt.pix_mp.pixelformat = pixfmt_out; + format.fmt.pix_mp.width = orig_pixmp.width; + format.fmt.pix_mp.height = orig_pixmp.height; + vdec_try_fmt_common(sess, num_formats, &format); + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + sess->width = format.fmt.pix_mp.width; + sess->height = format.fmt.pix_mp.height; + sess->colorspace = pixmp->colorspace; + sess->ycbcr_enc = pixmp->ycbcr_enc; + sess->quantization = pixmp->quantization; + sess->xfer_func = pixmp->xfer_func; + } + + memset(&format, 0, sizeof(format)); + + format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + format.fmt.pix_mp.pixelformat = pixfmt_cap; + format.fmt.pix_mp.width = orig_pixmp.width; + format.fmt.pix_mp.height = orig_pixmp.height; + vdec_try_fmt_common(sess, num_formats, &format); + + sess->width = format.fmt.pix_mp.width; + sess->height = format.fmt.pix_mp.height; + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + sess->fmt_out = fmt_out; + else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + sess->pixfmt_cap = format.fmt.pix_mp.pixelformat; + + return 0; +} + +static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + const struct vdec_platform *platform = sess->core->platform; + const struct amvdec_format *fmt_out; + + memset(f->reserved, 0, sizeof(f->reserved)); + + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { + if (f->index >= platform->num_formats) + return -EINVAL; + + fmt_out = &platform->formats[f->index]; + f->pixelformat = fmt_out->pixfmt; + f->flags = fmt_out->flags; + } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + fmt_out = sess->fmt_out; + if (f->index >= 4 || !fmt_out->pixfmts_cap[f->index]) + return -EINVAL; + + f->pixelformat = fmt_out->pixfmts_cap[f->index]; + } else { + return -EINVAL; + } + + return 0; +} + +static int vdec_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + const struct amvdec_format *formats = sess->core->platform->formats; + const struct amvdec_format *fmt; + u32 num_formats = sess->core->platform->num_formats; + + fmt = find_format(formats, num_formats, fsize->pixel_format); + if (!fmt || fsize->index) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS; + + fsize->stepwise.min_width = 256; + fsize->stepwise.max_width = fmt->max_width; + fsize->stepwise.step_width = 1; + fsize->stepwise.min_height = 144; + fsize->stepwise.max_height = fmt->max_height; + fsize->stepwise.step_height = 1; + + return 0; +} + +static int +vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + struct device *dev = sess->core->dev; + int ret; + + ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd); + if (ret) + return ret; + + if (!(sess->streamon_out & sess->streamon_cap)) + return 0; + + /* Currently not handled since we do not support dynamic resolution + * for MPEG2. We consider both queues streaming to mean that the + * decoding session is started + */ + if (cmd->cmd == V4L2_DEC_CMD_START) + return 0; + + /* Should not happen */ + if (cmd->cmd != V4L2_DEC_CMD_STOP) + return -EINVAL; + + dev_dbg(dev, "Received V4L2_DEC_CMD_STOP\n"); + sess->should_stop = 1; + + vdec_wait_inactive(sess); + + if (codec_ops->drain) { + codec_ops->drain(sess); + } else if (codec_ops->eos_sequence) { + u32 len; + const u8 *data = codec_ops->eos_sequence(&len); + + esparser_queue_eos(sess->core, data, len); + } + + return ret; +} + +static int vdec_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_EOS: + case V4L2_EVENT_SOURCE_CHANGE: + return v4l2_event_subscribe(fh, sub, 0, NULL); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subscribe_event(fh, sub); + default: + return -EINVAL; + } +} + +static int vdec_g_pixelaspect(struct file *file, void *fh, int type, + struct v4l2_fract *f) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + + if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + *f = sess->pixelaspect; + return 0; +} + +static const struct v4l2_ioctl_ops vdec_ioctl_ops = { + .vidioc_querycap = vdec_querycap, + .vidioc_enum_fmt_vid_cap = vdec_enum_fmt, + .vidioc_enum_fmt_vid_out = vdec_enum_fmt, + .vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt, + .vidioc_s_fmt_vid_out_mplane = vdec_s_fmt, + .vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt, + .vidioc_g_fmt_vid_out_mplane = vdec_g_fmt, + .vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt, + .vidioc_try_fmt_vid_out_mplane = vdec_try_fmt, + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, + .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, + .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, + .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, + .vidioc_streamon = v4l2_m2m_ioctl_streamon, + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, + .vidioc_enum_framesizes = vdec_enum_framesizes, + .vidioc_subscribe_event = vdec_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, + .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, + .vidioc_decoder_cmd = vdec_decoder_cmd, + .vidioc_g_pixelaspect = vdec_g_pixelaspect, +}; + +static int m2m_queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct amvdec_session *sess = priv; + int ret; + + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + src_vq->io_modes = VB2_MMAP | VB2_DMABUF; + src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + src_vq->ops = &vdec_vb2_ops; + src_vq->mem_ops = &vb2_dma_contig_memops; + src_vq->drv_priv = sess; + src_vq->buf_struct_size = sizeof(struct dummy_buf); + src_vq->min_buffers_needed = 1; + src_vq->dev = sess->core->dev; + src_vq->lock = &sess->lock; + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; + dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + dst_vq->ops = &vdec_vb2_ops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + dst_vq->drv_priv = sess; + dst_vq->buf_struct_size = sizeof(struct dummy_buf); + dst_vq->min_buffers_needed = 1; + dst_vq->dev = sess->core->dev; + dst_vq->lock = &sess->lock; + ret = vb2_queue_init(dst_vq); + if (ret) { + vb2_queue_release(src_vq); + return ret; + } + + return 0; +} + +static int vdec_init_ctrls(struct amvdec_session *sess) +{ + struct v4l2_ctrl_handler *ctrl_handler = &sess->ctrl_handler; + int ret; + + ret = v4l2_ctrl_handler_init(ctrl_handler, 1); + if (ret) + return ret; + + sess->ctrl_min_buf_capture = + v4l2_ctrl_new_std(ctrl_handler, NULL, + V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, + 1); + + ret = ctrl_handler->error; + if (ret) { + v4l2_ctrl_handler_free(ctrl_handler); + return ret; + } + + return 0; +} + +static int vdec_open(struct file *file) +{ + struct amvdec_core *core = video_drvdata(file); + struct device *dev = core->dev; + const struct amvdec_format *formats = core->platform->formats; + struct amvdec_session *sess; + int ret; + + sess = kzalloc(sizeof(*sess), GFP_KERNEL); + if (!sess) + return -ENOMEM; + + sess->core = core; + + sess->m2m_dev = v4l2_m2m_init(&vdec_m2m_ops); + if (IS_ERR(sess->m2m_dev)) { + dev_err(dev, "Fail to v4l2_m2m_init\n"); + ret = PTR_ERR(sess->m2m_dev); + goto err_free_sess; + } + + sess->m2m_ctx = v4l2_m2m_ctx_init(sess->m2m_dev, sess, m2m_queue_init); + if (IS_ERR(sess->m2m_ctx)) { + dev_err(dev, "Fail to v4l2_m2m_ctx_init\n"); + ret = PTR_ERR(sess->m2m_ctx); + goto err_m2m_release; + } + + ret = vdec_init_ctrls(sess); + if (ret) + goto err_m2m_release; + + sess->pixfmt_cap = formats[0].pixfmts_cap[0]; + sess->fmt_out = &formats[0]; + sess->width = 1280; + sess->height = 720; + sess->pixelaspect.numerator = 1; + sess->pixelaspect.denominator = 1; + + INIT_LIST_HEAD(&sess->timestamps); + INIT_LIST_HEAD(&sess->bufs_recycle); + INIT_WORK(&sess->esparser_queue_work, esparser_queue_all_src); + mutex_init(&sess->lock); + mutex_init(&sess->bufs_recycle_lock); + spin_lock_init(&sess->ts_spinlock); + + v4l2_fh_init(&sess->fh, core->vdev_dec); + sess->fh.ctrl_handler = &sess->ctrl_handler; + v4l2_fh_add(&sess->fh); + sess->fh.m2m_ctx = sess->m2m_ctx; + file->private_data = &sess->fh; + + return 0; + +err_m2m_release: + v4l2_m2m_release(sess->m2m_dev); +err_free_sess: + kfree(sess); + return ret; +} + +static int vdec_close(struct file *file) +{ + struct amvdec_session *sess = + container_of(file->private_data, struct amvdec_session, fh); + + v4l2_m2m_ctx_release(sess->m2m_ctx); + v4l2_m2m_release(sess->m2m_dev); + v4l2_fh_del(&sess->fh); + v4l2_fh_exit(&sess->fh); + + mutex_destroy(&sess->lock); + mutex_destroy(&sess->bufs_recycle_lock); + + kfree(sess); + + return 0; +} + +static const struct v4l2_file_operations vdec_fops = { + .owner = THIS_MODULE, + .open = vdec_open, + .release = vdec_close, + .unlocked_ioctl = video_ioctl2, + .poll = v4l2_m2m_fop_poll, + .mmap = v4l2_m2m_fop_mmap, +}; + +static irqreturn_t vdec_isr(int irq, void *data) +{ + struct amvdec_core *core = data; + struct amvdec_session *sess = core->cur_sess; + + sess->last_irq_jiffies = get_jiffies_64(); + + return sess->fmt_out->codec_ops->isr(sess); +} + +static irqreturn_t vdec_threaded_isr(int irq, void *data) +{ + struct amvdec_core *core = data; + struct amvdec_session *sess = core->cur_sess; + + return sess->fmt_out->codec_ops->threaded_isr(sess); +} + +static const struct of_device_id vdec_dt_match[] = { + { .compatible = "amlogic,gxbb-vdec", + .data = &vdec_platform_gxbb }, + { .compatible = "amlogic,gxm-vdec", + .data = &vdec_platform_gxm }, + { .compatible = "amlogic,gxl-vdec", + .data = &vdec_platform_gxl }, + {} +}; +MODULE_DEVICE_TABLE(of, vdec_dt_match); + +static int vdec_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct video_device *vdev; + struct amvdec_core *core; + struct resource *r; + const struct of_device_id *of_id; + int irq; + int ret; + + core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL); + if (!core) + return -ENOMEM; + + core->dev = dev; + platform_set_drvdata(pdev, core); + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dos"); + core->dos_base = devm_ioremap_resource(dev, r); + if (IS_ERR(core->dos_base)) { + dev_err(dev, "Couldn't remap DOS memory\n"); + return PTR_ERR(core->dos_base); + } + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "esparser"); + core->esparser_base = devm_ioremap_resource(dev, r); + if (IS_ERR(core->esparser_base)) { + dev_err(dev, "Couldn't remap ESPARSER memory\n"); + return PTR_ERR(core->esparser_base); + } + + core->regmap_ao = + syscon_regmap_lookup_by_phandle(dev->of_node, + "amlogic,ao-sysctrl"); + if (IS_ERR(core->regmap_ao)) { + dev_err(dev, "Couldn't regmap AO sysctrl\n"); + return PTR_ERR(core->regmap_ao); + } + + core->canvas = meson_canvas_get(dev); + if (IS_ERR(core->canvas)) + return PTR_ERR(core->canvas); + + core->dos_parser_clk = devm_clk_get(dev, "dos_parser"); + if (IS_ERR(core->dos_parser_clk)) + return -EPROBE_DEFER; + + core->dos_clk = devm_clk_get(dev, "dos"); + if (IS_ERR(core->dos_clk)) + return -EPROBE_DEFER; + + core->vdec_1_clk = devm_clk_get(dev, "vdec_1"); + if (IS_ERR(core->vdec_1_clk)) + return -EPROBE_DEFER; + + core->vdec_hevc_clk = devm_clk_get(dev, "vdec_hevc"); + if (IS_ERR(core->vdec_hevc_clk)) + return -EPROBE_DEFER; + + irq = platform_get_irq_byname(pdev, "vdec"); + if (irq < 0) + return irq; + + ret = devm_request_threaded_irq(core->dev, irq, vdec_isr, + vdec_threaded_isr, IRQF_ONESHOT, + "vdec", core); + if (ret) + return ret; + + ret = esparser_init(pdev, core); + if (ret) + return ret; + + ret = v4l2_device_register(dev, &core->v4l2_dev); + if (ret) { + dev_err(dev, "Couldn't register v4l2 device\n"); + return -ENOMEM; + } + + vdev = video_device_alloc(); + if (!vdev) { + ret = -ENOMEM; + goto err_vdev_release; + } + + of_id = of_match_node(vdec_dt_match, dev->of_node); + core->platform = of_id->data; + core->vdev_dec = vdev; + core->dev_dec = dev; + mutex_init(&core->lock); + + strscpy(vdev->name, "meson-video-decoder", sizeof(vdev->name)); + vdev->release = video_device_release; + vdev->fops = &vdec_fops; + vdev->ioctl_ops = &vdec_ioctl_ops; + vdev->vfl_dir = VFL_DIR_M2M; + vdev->v4l2_dev = &core->v4l2_dev; + vdev->lock = &core->lock; + vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; + + video_set_drvdata(vdev, core); + + ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); + if (ret) { + dev_err(dev, "Failed registering video device\n"); + goto err_vdev_release; + } + + return 0; + +err_vdev_release: + video_device_release(vdev); + return ret; +} + +static int vdec_remove(struct platform_device *pdev) +{ + struct amvdec_core *core = platform_get_drvdata(pdev); + + video_unregister_device(core->vdev_dec); + + return 0; +} + +static struct platform_driver meson_vdec_driver = { + .probe = vdec_probe, + .remove = vdec_remove, + .driver = { + .name = "meson-vdec", + .of_match_table = vdec_dt_match, + }, +}; +module_platform_driver(meson_vdec_driver); + +MODULE_DESCRIPTION("Meson video decoder driver for GXBB/GXL/GXM"); +MODULE_AUTHOR("Maxime Jourdan <mjourdan@baylibre.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/media/meson/vdec/vdec.h b/drivers/staging/media/meson/vdec/vdec.h new file mode 100644 index 000000000000..d811e7976519 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec.h @@ -0,0 +1,267 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_CORE_H_ +#define __MESON_VDEC_CORE_H_ + +#include <linux/irqreturn.h> +#include <linux/regmap.h> +#include <linux/list.h> +#include <media/videobuf2-v4l2.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <linux/soc/amlogic/meson-canvas.h> + +#include "vdec_platform.h" + +/* 32 buffers in 3-plane YUV420 */ +#define MAX_CANVAS (32 * 3) + +struct amvdec_buffer { + struct list_head list; + struct vb2_buffer *vb; +}; + +/** + * struct amvdec_timestamp - stores a src timestamp along with a VIFIFO offset + * + * @list: used to make lists out of this struct + * @ts: timestamp + * @offset: offset in the VIFIFO where the associated packet was written + */ +struct amvdec_timestamp { + struct list_head list; + u64 ts; + u32 offset; +}; + +struct amvdec_session; + +/** + * struct amvdec_core - device parameters, singleton + * + * @dos_base: DOS memory base address + * @esparser_base: PARSER memory base address + * @regmap_ao: regmap for the AO bus + * @dev: core device + * @dev_dec: decoder device + * @platform: platform-specific data + * @canvas: canvas provider reference + * @dos_parser_clk: DOS_PARSER clock + * @dos_clk: DOS clock + * @vdec_1_clk: VDEC_1 clock + * @vdec_hevc_clk: VDEC_HEVC clock + * @esparser_reset: RESET for the PARSER + * @vdec_dec: video device for the decoder + * @v4l2_dev: v4l2 device + * @cur_sess: current decoding session + */ +struct amvdec_core { + void __iomem *dos_base; + void __iomem *esparser_base; + struct regmap *regmap_ao; + + struct device *dev; + struct device *dev_dec; + const struct vdec_platform *platform; + + struct meson_canvas *canvas; + + struct clk *dos_parser_clk; + struct clk *dos_clk; + struct clk *vdec_1_clk; + struct clk *vdec_hevc_clk; + + struct reset_control *esparser_reset; + + struct video_device *vdev_dec; + struct v4l2_device v4l2_dev; + + struct amvdec_session *cur_sess; + struct mutex lock; /* video device lock */ +}; + +/** + * struct amvdec_ops - vdec operations + * + * @start: mandatory call when the vdec needs to initialize + * @stop: mandatory call when the vdec needs to stop + * @conf_esparser: mandatory call to let the vdec configure the ESPARSER + * @vififo_level: mandatory call to get the current amount of data + * in the VIFIFO + * @use_offsets: mandatory call. Returns 1 if the VDEC supports vififo offsets + */ +struct amvdec_ops { + int (*start)(struct amvdec_session *sess); + int (*stop)(struct amvdec_session *sess); + void (*conf_esparser)(struct amvdec_session *sess); + u32 (*vififo_level)(struct amvdec_session *sess); +}; + +/** + * struct amvdec_codec_ops - codec operations + * + * @start: mandatory call when the codec needs to initialize + * @stop: mandatory call when the codec needs to stop + * @load_extended_firmware: optional call to load additional firmware bits + * @num_pending_bufs: optional call to get the number of dst buffers on hold + * @can_recycle: optional call to know if the codec is ready to recycle + * a dst buffer + * @recycle: optional call to tell the codec to recycle a dst buffer. Must go + * in pair with @can_recycle + * @drain: optional call if the codec has a custom way of draining + * @eos_sequence: optional call to get an end sequence to send to esparser + * for flush. Mutually exclusive with @drain. + * @isr: mandatory call when the ISR triggers + * @threaded_isr: mandatory call for the threaded ISR + */ +struct amvdec_codec_ops { + int (*start)(struct amvdec_session *sess); + int (*stop)(struct amvdec_session *sess); + int (*load_extended_firmware)(struct amvdec_session *sess, + const u8 *data, u32 len); + u32 (*num_pending_bufs)(struct amvdec_session *sess); + int (*can_recycle)(struct amvdec_core *core); + void (*recycle)(struct amvdec_core *core, u32 buf_idx); + void (*drain)(struct amvdec_session *sess); + void (*resume)(struct amvdec_session *sess); + const u8 * (*eos_sequence)(u32 *len); + irqreturn_t (*isr)(struct amvdec_session *sess); + irqreturn_t (*threaded_isr)(struct amvdec_session *sess); +}; + +/** + * struct amvdec_format - describes one of the OUTPUT (src) format supported + * + * @pixfmt: V4L2 pixel format + * @min_buffers: minimum amount of CAPTURE (dst) buffers + * @max_buffers: maximum amount of CAPTURE (dst) buffers + * @max_width: maximum picture width supported + * @max_height: maximum picture height supported + * @flags: enum flags associated with this pixfmt + * @vdec_ops: the VDEC operations that support this format + * @codec_ops: the codec operations that support this format + * @firmware_path: Path to the firmware that supports this format + * @pixfmts_cap: list of CAPTURE pixel formats available with pixfmt + */ +struct amvdec_format { + u32 pixfmt; + u32 min_buffers; + u32 max_buffers; + u32 max_width; + u32 max_height; + u32 flags; + + struct amvdec_ops *vdec_ops; + struct amvdec_codec_ops *codec_ops; + + char *firmware_path; + u32 pixfmts_cap[4]; +}; + +enum amvdec_status { + STATUS_STOPPED, + STATUS_RUNNING, + STATUS_NEEDS_RESUME, +}; + +/** + * struct amvdec_session - decoding session parameters + * + * @core: reference to the vdec core struct + * @fh: v4l2 file handle + * @m2m_dev: v4l2 m2m device + * @m2m_ctx: v4l2 m2m context + * @ctrl_handler: V4L2 control handler + * @ctrl_min_buf_capture: V4L2 control V4L2_CID_MIN_BUFFERS_FOR_CAPTURE + * @fmt_out: vdec pixel format for the OUTPUT queue + * @pixfmt_cap: V4L2 pixel format for the CAPTURE queue + * @width: current picture width + * @height: current picture height + * @colorspace: current colorspace + * @ycbcr_enc: current ycbcr_enc + * @quantization: current quantization + * @xfer_func: current transfer function + * @pixelaspect: Pixel Aspect Ratio reported by the decoder + * @esparser_queued_bufs: number of buffers currently queued into ESPARSER + * @esparser_queue_work: work struct for the ESPARSER to process src buffers + * @streamon_cap: stream on flag for capture queue + * @streamon_out: stream on flag for output queue + * @sequence_cap: capture sequence counter + * @should_stop: flag set if userspace signaled EOS via command + * or empty buffer + * @keyframe_found: flag set once a keyframe has been parsed + * @canvas_alloc: array of all the canvas IDs allocated + * @canvas_num: number of canvas IDs allocated + * @vififo_vaddr: virtual address for the VIFIFO + * @vififo_paddr: physical address for the VIFIFO + * @vififo_size: size of the VIFIFO dma alloc + * @bufs_recycle: list of buffers that need to be recycled + * @bufs_recycle_lock: lock for the bufs_recycle list + * @recycle_thread: task struct for the recycling thread + * @timestamps: chronological list of src timestamps + * @ts_spinlock: spinlock for the timestamps list + * @last_irq_jiffies: tracks last time the vdec triggered an IRQ + * @status: current decoding status + * @priv: codec private data + */ +struct amvdec_session { + struct amvdec_core *core; + + struct v4l2_fh fh; + struct v4l2_m2m_dev *m2m_dev; + struct v4l2_m2m_ctx *m2m_ctx; + struct v4l2_ctrl_handler ctrl_handler; + struct v4l2_ctrl *ctrl_min_buf_capture; + struct mutex lock; /* cap & out queues lock */ + + const struct amvdec_format *fmt_out; + u32 pixfmt_cap; + + u32 width; + u32 height; + u32 colorspace; + u8 ycbcr_enc; + u8 quantization; + u8 xfer_func; + + struct v4l2_fract pixelaspect; + + atomic_t esparser_queued_bufs; + struct work_struct esparser_queue_work; + + unsigned int streamon_cap, streamon_out; + unsigned int sequence_cap; + unsigned int should_stop; + unsigned int keyframe_found; + unsigned int num_dst_bufs; + + u8 canvas_alloc[MAX_CANVAS]; + u32 canvas_num; + + void *vififo_vaddr; + dma_addr_t vififo_paddr; + u32 vififo_size; + + struct list_head bufs_recycle; + struct mutex bufs_recycle_lock; /* bufs_recycle list lock */ + struct task_struct *recycle_thread; + + struct list_head timestamps; + spinlock_t ts_spinlock; /* timestamp list lock */ + + u64 last_irq_jiffies; + u32 last_offset; + u32 wrap_count; + u32 fw_idx_to_vb2_idx[32]; + + enum amvdec_status status; + void *priv; +}; + +u32 amvdec_get_output_size(struct amvdec_session *sess); + +#endif diff --git a/drivers/staging/media/meson/vdec/vdec_1.c b/drivers/staging/media/meson/vdec/vdec_1.c new file mode 100644 index 000000000000..3a15c6fc0567 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_1.c @@ -0,0 +1,230 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + * + * VDEC_1 is a video decoding block that allows decoding of + * MPEG 1/2/4, H.263, H.264, MJPEG, VC1 + */ + +#include <linux/firmware.h> +#include <linux/clk.h> + +#include "vdec_1.h" +#include "vdec_helpers.h" +#include "dos_regs.h" + +/* AO Registers */ +#define AO_RTI_GEN_PWR_SLEEP0 0xe8 +#define AO_RTI_GEN_PWR_ISO0 0xec + #define GEN_PWR_VDEC_1 (BIT(3) | BIT(2)) + +#define MC_SIZE (4096 * 4) + +static int +vdec_1_load_firmware(struct amvdec_session *sess, const char *fwname) +{ + const struct firmware *fw; + struct amvdec_core *core = sess->core; + struct device *dev = core->dev_dec; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + static void *mc_addr; + static dma_addr_t mc_addr_map; + int ret; + u32 i = 1000; + + ret = request_firmware(&fw, fwname, dev); + if (ret < 0) + return -EINVAL; + + if (fw->size < MC_SIZE) { + dev_err(dev, "Firmware size %zu is too small. Expected %u.\n", + fw->size, MC_SIZE); + ret = -EINVAL; + goto release_firmware; + } + + mc_addr = dma_alloc_coherent(core->dev, MC_SIZE, + &mc_addr_map, GFP_KERNEL); + if (!mc_addr) { + ret = -ENOMEM; + goto release_firmware; + } + + memcpy(mc_addr, fw->data, MC_SIZE); + + amvdec_write_dos(core, MPSR, 0); + amvdec_write_dos(core, CPSR, 0); + + amvdec_clear_dos_bits(core, MDEC_PIC_DC_CTRL, BIT(31)); + + amvdec_write_dos(core, IMEM_DMA_ADR, mc_addr_map); + amvdec_write_dos(core, IMEM_DMA_COUNT, MC_SIZE / 4); + amvdec_write_dos(core, IMEM_DMA_CTRL, (0x8000 | (7 << 16))); + + while (--i && amvdec_read_dos(core, IMEM_DMA_CTRL) & 0x8000); + + if (i == 0) { + dev_err(dev, "Firmware load fail (DMA hang?)\n"); + ret = -EINVAL; + goto free_mc; + } + + if (codec_ops->load_extended_firmware) + ret = codec_ops->load_extended_firmware(sess, + fw->data + MC_SIZE, + fw->size - MC_SIZE); + +free_mc: + dma_free_coherent(core->dev, MC_SIZE, mc_addr, mc_addr_map); +release_firmware: + release_firmware(fw); + return ret; +} + +static int vdec_1_stbuf_power_up(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + + amvdec_write_dos(core, VLD_MEM_VIFIFO_CONTROL, 0); + amvdec_write_dos(core, VLD_MEM_VIFIFO_WRAP_COUNT, 0); + amvdec_write_dos(core, POWER_CTL_VLD, BIT(4)); + + amvdec_write_dos(core, VLD_MEM_VIFIFO_START_PTR, sess->vififo_paddr); + amvdec_write_dos(core, VLD_MEM_VIFIFO_CURR_PTR, sess->vififo_paddr); + amvdec_write_dos(core, VLD_MEM_VIFIFO_END_PTR, + sess->vififo_paddr + sess->vififo_size - 8); + + amvdec_write_dos_bits(core, VLD_MEM_VIFIFO_CONTROL, 1); + amvdec_clear_dos_bits(core, VLD_MEM_VIFIFO_CONTROL, 1); + + amvdec_write_dos(core, VLD_MEM_VIFIFO_BUF_CNTL, MEM_BUFCTRL_MANUAL); + amvdec_write_dos(core, VLD_MEM_VIFIFO_WP, sess->vififo_paddr); + + amvdec_write_dos_bits(core, VLD_MEM_VIFIFO_BUF_CNTL, 1); + amvdec_clear_dos_bits(core, VLD_MEM_VIFIFO_BUF_CNTL, 1); + + amvdec_write_dos_bits(core, VLD_MEM_VIFIFO_CONTROL, + (0x11 << MEM_FIFO_CNT_BIT) | MEM_FILL_ON_LEVEL | + MEM_CTRL_FILL_EN | MEM_CTRL_EMPTY_EN); + + return 0; +} + +static void vdec_1_conf_esparser(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + + /* VDEC_1 specific ESPARSER stuff */ + amvdec_write_dos(core, DOS_GEN_CTRL0, 0); + amvdec_write_dos(core, VLD_MEM_VIFIFO_BUF_CNTL, 1); + amvdec_clear_dos_bits(core, VLD_MEM_VIFIFO_BUF_CNTL, 1); +} + +static u32 vdec_1_vififo_level(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + + return amvdec_read_dos(core, VLD_MEM_VIFIFO_LEVEL); +} + +static int vdec_1_stop(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + + amvdec_write_dos(core, MPSR, 0); + amvdec_write_dos(core, CPSR, 0); + amvdec_write_dos(core, ASSIST_MBOX1_MASK, 0); + + amvdec_write_dos(core, DOS_SW_RESET0, BIT(12) | BIT(11)); + amvdec_write_dos(core, DOS_SW_RESET0, 0); + amvdec_read_dos(core, DOS_SW_RESET0); + + /* enable vdec1 isolation */ + regmap_write(core->regmap_ao, AO_RTI_GEN_PWR_ISO0, 0xc0); + /* power off vdec1 memories */ + amvdec_write_dos(core, DOS_MEM_PD_VDEC, 0xffffffff); + /* power off vdec1 */ + regmap_update_bits(core->regmap_ao, AO_RTI_GEN_PWR_SLEEP0, + GEN_PWR_VDEC_1, GEN_PWR_VDEC_1); + + clk_disable_unprepare(core->vdec_1_clk); + + if (sess->priv) + codec_ops->stop(sess); + + return 0; +} + +static int vdec_1_start(struct amvdec_session *sess) +{ + int ret; + struct amvdec_core *core = sess->core; + struct amvdec_codec_ops *codec_ops = sess->fmt_out->codec_ops; + + /* Configure the vdec clk to the maximum available */ + clk_set_rate(core->vdec_1_clk, 666666666); + ret = clk_prepare_enable(core->vdec_1_clk); + if (ret) + return ret; + + /* Enable power for VDEC_1 */ + regmap_update_bits(core->regmap_ao, AO_RTI_GEN_PWR_SLEEP0, + GEN_PWR_VDEC_1, 0); + usleep_range(10, 20); + + /* Reset VDEC1 */ + amvdec_write_dos(core, DOS_SW_RESET0, 0xfffffffc); + amvdec_write_dos(core, DOS_SW_RESET0, 0x00000000); + + amvdec_write_dos(core, DOS_GCLK_EN0, 0x3ff); + + /* enable VDEC Memories */ + amvdec_write_dos(core, DOS_MEM_PD_VDEC, 0); + /* Remove VDEC1 Isolation */ + regmap_write(core->regmap_ao, AO_RTI_GEN_PWR_ISO0, 0); + /* Reset DOS top registers */ + amvdec_write_dos(core, DOS_VDEC_MCRCC_STALL_CTRL, 0); + + amvdec_write_dos(core, GCLK_EN, 0x3ff); + amvdec_clear_dos_bits(core, MDEC_PIC_DC_CTRL, BIT(31)); + + vdec_1_stbuf_power_up(sess); + + ret = vdec_1_load_firmware(sess, sess->fmt_out->firmware_path); + if (ret) + goto stop; + + ret = codec_ops->start(sess); + if (ret) + goto stop; + + /* Enable IRQ */ + amvdec_write_dos(core, ASSIST_MBOX1_CLR_REG, 1); + amvdec_write_dos(core, ASSIST_MBOX1_MASK, 1); + + /* Enable 2-plane output */ + if (sess->pixfmt_cap == V4L2_PIX_FMT_NV12M) + amvdec_write_dos_bits(core, MDEC_PIC_DC_CTRL, BIT(17)); + else + amvdec_clear_dos_bits(core, MDEC_PIC_DC_CTRL, BIT(17)); + + /* Enable firmware processor */ + amvdec_write_dos(core, MPSR, 1); + /* Let the firmware settle */ + usleep_range(10, 20); + + return 0; + +stop: + vdec_1_stop(sess); + return ret; +} + +struct amvdec_ops vdec_1_ops = { + .start = vdec_1_start, + .stop = vdec_1_stop, + .conf_esparser = vdec_1_conf_esparser, + .vififo_level = vdec_1_vififo_level, +}; diff --git a/drivers/staging/media/meson/vdec/vdec_1.h b/drivers/staging/media/meson/vdec/vdec_1.h new file mode 100644 index 000000000000..042d930c40d7 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_1.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_VDEC_1_H_ +#define __MESON_VDEC_VDEC_1_H_ + +#include "vdec.h" + +extern struct amvdec_ops vdec_1_ops; + +#endif diff --git a/drivers/staging/media/meson/vdec/vdec_helpers.c b/drivers/staging/media/meson/vdec/vdec_helpers.c new file mode 100644 index 000000000000..f16948bdbf2f --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_helpers.c @@ -0,0 +1,449 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#include <linux/gcd.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-dma-contig.h> + +#include "vdec_helpers.h" + +#define NUM_CANVAS_NV12 2 +#define NUM_CANVAS_YUV420 3 + +u32 amvdec_read_dos(struct amvdec_core *core, u32 reg) +{ + return readl_relaxed(core->dos_base + reg); +} +EXPORT_SYMBOL_GPL(amvdec_read_dos); + +void amvdec_write_dos(struct amvdec_core *core, u32 reg, u32 val) +{ + writel_relaxed(val, core->dos_base + reg); +} +EXPORT_SYMBOL_GPL(amvdec_write_dos); + +void amvdec_write_dos_bits(struct amvdec_core *core, u32 reg, u32 val) +{ + amvdec_write_dos(core, reg, amvdec_read_dos(core, reg) | val); +} +EXPORT_SYMBOL_GPL(amvdec_write_dos_bits); + +void amvdec_clear_dos_bits(struct amvdec_core *core, u32 reg, u32 val) +{ + amvdec_write_dos(core, reg, amvdec_read_dos(core, reg) & ~val); +} +EXPORT_SYMBOL_GPL(amvdec_clear_dos_bits); + +u32 amvdec_read_parser(struct amvdec_core *core, u32 reg) +{ + return readl_relaxed(core->esparser_base + reg); +} +EXPORT_SYMBOL_GPL(amvdec_read_parser); + +void amvdec_write_parser(struct amvdec_core *core, u32 reg, u32 val) +{ + writel_relaxed(val, core->esparser_base + reg); +} +EXPORT_SYMBOL_GPL(amvdec_write_parser); + +static int canvas_alloc(struct amvdec_session *sess, u8 *canvas_id) +{ + int ret; + + if (sess->canvas_num >= MAX_CANVAS) { + dev_err(sess->core->dev, "Reached max number of canvas\n"); + return -ENOMEM; + } + + ret = meson_canvas_alloc(sess->core->canvas, canvas_id); + if (ret) + return ret; + + sess->canvas_alloc[sess->canvas_num++] = *canvas_id; + return 0; +} + +static int set_canvas_yuv420m(struct amvdec_session *sess, + struct vb2_buffer *vb, u32 width, + u32 height, u32 reg) +{ + struct amvdec_core *core = sess->core; + u8 canvas_id[NUM_CANVAS_YUV420]; /* Y U V */ + dma_addr_t buf_paddr[NUM_CANVAS_YUV420]; /* Y U V */ + int ret, i; + + for (i = 0; i < NUM_CANVAS_YUV420; ++i) { + ret = canvas_alloc(sess, &canvas_id[i]); + if (ret) + return ret; + + buf_paddr[i] = + vb2_dma_contig_plane_dma_addr(vb, i); + } + + /* Y plane */ + meson_canvas_config(core->canvas, canvas_id[0], buf_paddr[0], + width, height, MESON_CANVAS_WRAP_NONE, + MESON_CANVAS_BLKMODE_LINEAR, + MESON_CANVAS_ENDIAN_SWAP64); + + /* U plane */ + meson_canvas_config(core->canvas, canvas_id[1], buf_paddr[1], + width / 2, height / 2, MESON_CANVAS_WRAP_NONE, + MESON_CANVAS_BLKMODE_LINEAR, + MESON_CANVAS_ENDIAN_SWAP64); + + /* V plane */ + meson_canvas_config(core->canvas, canvas_id[2], buf_paddr[2], + width / 2, height / 2, MESON_CANVAS_WRAP_NONE, + MESON_CANVAS_BLKMODE_LINEAR, + MESON_CANVAS_ENDIAN_SWAP64); + + amvdec_write_dos(core, reg, + ((canvas_id[2]) << 16) | + ((canvas_id[1]) << 8) | + (canvas_id[0])); + + return 0; +} + +static int set_canvas_nv12m(struct amvdec_session *sess, + struct vb2_buffer *vb, u32 width, + u32 height, u32 reg) +{ + struct amvdec_core *core = sess->core; + u8 canvas_id[NUM_CANVAS_NV12]; /* Y U/V */ + dma_addr_t buf_paddr[NUM_CANVAS_NV12]; /* Y U/V */ + int ret, i; + + for (i = 0; i < NUM_CANVAS_NV12; ++i) { + ret = canvas_alloc(sess, &canvas_id[i]); + if (ret) + return ret; + + buf_paddr[i] = + vb2_dma_contig_plane_dma_addr(vb, i); + } + + /* Y plane */ + meson_canvas_config(core->canvas, canvas_id[0], buf_paddr[0], + width, height, MESON_CANVAS_WRAP_NONE, + MESON_CANVAS_BLKMODE_LINEAR, + MESON_CANVAS_ENDIAN_SWAP64); + + /* U/V plane */ + meson_canvas_config(core->canvas, canvas_id[1], buf_paddr[1], + width, height / 2, MESON_CANVAS_WRAP_NONE, + MESON_CANVAS_BLKMODE_LINEAR, + MESON_CANVAS_ENDIAN_SWAP64); + + amvdec_write_dos(core, reg, + ((canvas_id[1]) << 16) | + ((canvas_id[1]) << 8) | + (canvas_id[0])); + + return 0; +} + +int amvdec_set_canvases(struct amvdec_session *sess, + u32 reg_base[], u32 reg_num[]) +{ + struct v4l2_m2m_buffer *buf; + u32 pixfmt = sess->pixfmt_cap; + u32 width = ALIGN(sess->width, 64); + u32 height = ALIGN(sess->height, 64); + u32 reg_cur = reg_base[0]; + u32 reg_num_cur = 0; + u32 reg_base_cur = 0; + int i = 0; + int ret; + + v4l2_m2m_for_each_dst_buf(sess->m2m_ctx, buf) { + if (!reg_base[reg_base_cur]) + return -EINVAL; + + reg_cur = reg_base[reg_base_cur] + reg_num_cur * 4; + + switch (pixfmt) { + case V4L2_PIX_FMT_NV12M: + ret = set_canvas_nv12m(sess, &buf->vb.vb2_buf, width, + height, reg_cur); + if (ret) + return ret; + break; + case V4L2_PIX_FMT_YUV420M: + ret = set_canvas_yuv420m(sess, &buf->vb.vb2_buf, width, + height, reg_cur); + if (ret) + return ret; + break; + default: + dev_err(sess->core->dev, "Unsupported pixfmt %08X\n", + pixfmt); + return -EINVAL; + } + + reg_num_cur++; + if (reg_num_cur >= reg_num[reg_base_cur]) { + reg_base_cur++; + reg_num_cur = 0; + } + + sess->fw_idx_to_vb2_idx[i++] = buf->vb.vb2_buf.index; + } + + return 0; +} +EXPORT_SYMBOL_GPL(amvdec_set_canvases); + +void amvdec_add_ts_reorder(struct amvdec_session *sess, u64 ts, u32 offset) +{ + struct amvdec_timestamp *new_ts, *tmp; + unsigned long flags; + + new_ts = kmalloc(sizeof(*new_ts), GFP_KERNEL); + new_ts->ts = ts; + new_ts->offset = offset; + + spin_lock_irqsave(&sess->ts_spinlock, flags); + + if (list_empty(&sess->timestamps)) + goto add_tail; + + list_for_each_entry(tmp, &sess->timestamps, list) { + if (ts <= tmp->ts) { + list_add_tail(&new_ts->list, &tmp->list); + goto unlock; + } + } + +add_tail: + list_add_tail(&new_ts->list, &sess->timestamps); +unlock: + spin_unlock_irqrestore(&sess->ts_spinlock, flags); +} +EXPORT_SYMBOL_GPL(amvdec_add_ts_reorder); + +void amvdec_remove_ts(struct amvdec_session *sess, u64 ts) +{ + struct amvdec_timestamp *tmp; + unsigned long flags; + + spin_lock_irqsave(&sess->ts_spinlock, flags); + list_for_each_entry(tmp, &sess->timestamps, list) { + if (tmp->ts == ts) { + list_del(&tmp->list); + kfree(tmp); + goto unlock; + } + } + dev_warn(sess->core->dev_dec, + "Couldn't remove buffer with timestamp %llu from list\n", ts); + +unlock: + spin_unlock_irqrestore(&sess->ts_spinlock, flags); +} +EXPORT_SYMBOL_GPL(amvdec_remove_ts); + +static void dst_buf_done(struct amvdec_session *sess, + struct vb2_v4l2_buffer *vbuf, + u32 field, + u64 timestamp) +{ + struct device *dev = sess->core->dev_dec; + u32 output_size = amvdec_get_output_size(sess); + + switch (sess->pixfmt_cap) { + case V4L2_PIX_FMT_NV12M: + vbuf->vb2_buf.planes[0].bytesused = output_size; + vbuf->vb2_buf.planes[1].bytesused = output_size / 2; + break; + case V4L2_PIX_FMT_YUV420M: + vbuf->vb2_buf.planes[0].bytesused = output_size; + vbuf->vb2_buf.planes[1].bytesused = output_size / 4; + vbuf->vb2_buf.planes[2].bytesused = output_size / 4; + break; + } + + vbuf->vb2_buf.timestamp = timestamp; + vbuf->sequence = sess->sequence_cap++; + + if (sess->should_stop && + atomic_read(&sess->esparser_queued_bufs) <= 2) { + const struct v4l2_event ev = { .type = V4L2_EVENT_EOS }; + + dev_dbg(dev, "Signaling EOS\n"); + v4l2_event_queue_fh(&sess->fh, &ev); + vbuf->flags |= V4L2_BUF_FLAG_LAST; + } else if (sess->should_stop) + dev_dbg(dev, "should_stop, %u bufs remain\n", + atomic_read(&sess->esparser_queued_bufs)); + + dev_dbg(dev, "Buffer %u done\n", vbuf->vb2_buf.index); + vbuf->field = field; + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE); + + /* Buffer done probably means the vififo got freed */ + schedule_work(&sess->esparser_queue_work); +} + +void amvdec_dst_buf_done(struct amvdec_session *sess, + struct vb2_v4l2_buffer *vbuf, u32 field) +{ + struct device *dev = sess->core->dev_dec; + struct amvdec_timestamp *tmp; + struct list_head *timestamps = &sess->timestamps; + u64 timestamp; + unsigned long flags; + + spin_lock_irqsave(&sess->ts_spinlock, flags); + if (list_empty(timestamps)) { + dev_err(dev, "Buffer %u done but list is empty\n", + vbuf->vb2_buf.index); + + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); + spin_unlock_irqrestore(&sess->ts_spinlock, flags); + return; + } + + tmp = list_first_entry(timestamps, struct amvdec_timestamp, list); + timestamp = tmp->ts; + list_del(&tmp->list); + kfree(tmp); + spin_unlock_irqrestore(&sess->ts_spinlock, flags); + + dst_buf_done(sess, vbuf, field, timestamp); + atomic_dec(&sess->esparser_queued_bufs); +} +EXPORT_SYMBOL_GPL(amvdec_dst_buf_done); + +void amvdec_dst_buf_done_offset(struct amvdec_session *sess, + struct vb2_v4l2_buffer *vbuf, + u32 offset, u32 field, bool allow_drop) +{ + struct device *dev = sess->core->dev_dec; + struct amvdec_timestamp *match = NULL; + struct amvdec_timestamp *tmp, *n; + u64 timestamp = 0; + unsigned long flags; + + spin_lock_irqsave(&sess->ts_spinlock, flags); + + /* Look for our vififo offset to get the corresponding timestamp. */ + list_for_each_entry_safe(tmp, n, &sess->timestamps, list) { + s64 delta = (s64)offset - tmp->offset; + + /* Offsets reported by codecs usually differ slightly, + * so we need some wiggle room. + * 4KiB being the minimum packet size, there is no risk here. + */ + if (delta > (-1 * (s32)SZ_4K) && delta < SZ_4K) { + match = tmp; + break; + } + + if (!allow_drop) + continue; + + /* Delete any timestamp entry that appears before our target + * (not all src packets/timestamps lead to a frame) + */ + if (delta > 0 || delta < -1 * (s32)sess->vififo_size) { + atomic_dec(&sess->esparser_queued_bufs); + list_del(&tmp->list); + kfree(tmp); + } + } + + if (!match) { + dev_dbg(dev, "Buffer %u done but can't match offset (%08X)\n", + vbuf->vb2_buf.index, offset); + } else { + timestamp = match->ts; + list_del(&match->list); + kfree(match); + } + spin_unlock_irqrestore(&sess->ts_spinlock, flags); + + dst_buf_done(sess, vbuf, field, timestamp); + if (match) + atomic_dec(&sess->esparser_queued_bufs); +} +EXPORT_SYMBOL_GPL(amvdec_dst_buf_done_offset); + +void amvdec_dst_buf_done_idx(struct amvdec_session *sess, + u32 buf_idx, u32 offset, u32 field) +{ + struct vb2_v4l2_buffer *vbuf; + struct device *dev = sess->core->dev_dec; + + vbuf = v4l2_m2m_dst_buf_remove_by_idx(sess->m2m_ctx, + sess->fw_idx_to_vb2_idx[buf_idx]); + + if (!vbuf) { + dev_err(dev, + "Buffer %u done but it doesn't exist in m2m_ctx\n", + buf_idx); + return; + } + + if (offset != -1) + amvdec_dst_buf_done_offset(sess, vbuf, offset, field, true); + else + amvdec_dst_buf_done(sess, vbuf, field); +} +EXPORT_SYMBOL_GPL(amvdec_dst_buf_done_idx); + +void amvdec_set_par_from_dar(struct amvdec_session *sess, + u32 dar_num, u32 dar_den) +{ + u32 div; + + sess->pixelaspect.numerator = sess->height * dar_num; + sess->pixelaspect.denominator = sess->width * dar_den; + div = gcd(sess->pixelaspect.numerator, sess->pixelaspect.denominator); + sess->pixelaspect.numerator /= div; + sess->pixelaspect.denominator /= div; +} +EXPORT_SYMBOL_GPL(amvdec_set_par_from_dar); + +void amvdec_src_change(struct amvdec_session *sess, u32 width, + u32 height, u32 dpb_size) +{ + static const struct v4l2_event ev = { + .type = V4L2_EVENT_SOURCE_CHANGE, + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION }; + + v4l2_ctrl_s_ctrl(sess->ctrl_min_buf_capture, dpb_size); + + /* Check if the capture queue is already configured well for our + * usecase. If so, keep decoding with it and do not send the event + */ + if (sess->width == width && + sess->height == height && + dpb_size <= sess->num_dst_bufs) { + sess->fmt_out->codec_ops->resume(sess); + return; + } + + sess->width = width; + sess->height = height; + sess->status = STATUS_NEEDS_RESUME; + + dev_dbg(sess->core->dev, "Res. changed (%ux%u), DPB size %u\n", + width, height, dpb_size); + v4l2_event_queue_fh(&sess->fh, &ev); +} +EXPORT_SYMBOL_GPL(amvdec_src_change); + +void amvdec_abort(struct amvdec_session *sess) +{ + dev_info(sess->core->dev, "Aborting decoding session!\n"); + vb2_queue_error(&sess->m2m_ctx->cap_q_ctx.q); + vb2_queue_error(&sess->m2m_ctx->out_q_ctx.q); +} +EXPORT_SYMBOL_GPL(amvdec_abort); diff --git a/drivers/staging/media/meson/vdec/vdec_helpers.h b/drivers/staging/media/meson/vdec/vdec_helpers.h new file mode 100644 index 000000000000..a455a9ee1cc2 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_helpers.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_HELPERS_H_ +#define __MESON_VDEC_HELPERS_H_ + +#include "vdec.h" + +/** + * amvdec_set_canvases() - Map VB2 buffers to canvases + * + * @sess: current session + * @reg_base: Registry bases of where to write the canvas indexes + * @reg_num: number of contiguous registers after each reg_base (including it) + */ +int amvdec_set_canvases(struct amvdec_session *sess, + u32 reg_base[], u32 reg_num[]); + +/* Helpers to read/write to the various IPs (DOS, PARSER) */ +u32 amvdec_read_dos(struct amvdec_core *core, u32 reg); +void amvdec_write_dos(struct amvdec_core *core, u32 reg, u32 val); +void amvdec_write_dos_bits(struct amvdec_core *core, u32 reg, u32 val); +void amvdec_clear_dos_bits(struct amvdec_core *core, u32 reg, u32 val); +u32 amvdec_read_parser(struct amvdec_core *core, u32 reg); +void amvdec_write_parser(struct amvdec_core *core, u32 reg, u32 val); + +/** + * amvdec_dst_buf_done_idx() - Signal that a buffer is done decoding + * + * @sess: current session + * @buf_idx: hardware buffer index + * @offset: VIFIFO bitstream offset corresponding to the buffer + * @field: V4L2 interlaced field + */ +void amvdec_dst_buf_done_idx(struct amvdec_session *sess, u32 buf_idx, + u32 offset, u32 field); +void amvdec_dst_buf_done(struct amvdec_session *sess, + struct vb2_v4l2_buffer *vbuf, u32 field); +void amvdec_dst_buf_done_offset(struct amvdec_session *sess, + struct vb2_v4l2_buffer *vbuf, + u32 offset, u32 field, bool allow_drop); + +/** + * amvdec_add_ts_reorder() - Add a timestamp to the list in chronological order + * + * @sess: current session + * @ts: timestamp to add + * @offset: offset in the VIFIFO where the associated packet was written + */ +void amvdec_add_ts_reorder(struct amvdec_session *sess, u64 ts, u32 offset); +void amvdec_remove_ts(struct amvdec_session *sess, u64 ts); + +/** + * amvdec_set_par_from_dar() - Set Pixel Aspect Ratio from Display Aspect Ratio + * + * @sess: current session + * @dar_num: numerator of the DAR + * @dar_den: denominator of the DAR + */ +void amvdec_set_par_from_dar(struct amvdec_session *sess, + u32 dar_num, u32 dar_den); + +/** + * amvdec_src_change() - Notify new resolution/DPB size to the core + * + * @sess: current session + * @width: picture width detected by the hardware + * @height: picture height detected by the hardware + * @dpb_size: Decoded Picture Buffer size (= amount of buffers for decoding) + */ +void amvdec_src_change(struct amvdec_session *sess, u32 width, + u32 height, u32 dpb_size); + +/** + * amvdec_abort() - Abort the current decoding session + * + * @sess: current session + */ +void amvdec_abort(struct amvdec_session *sess); +#endif diff --git a/drivers/staging/media/meson/vdec/vdec_platform.c b/drivers/staging/media/meson/vdec/vdec_platform.c new file mode 100644 index 000000000000..824dbc7f46f5 --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_platform.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#include "vdec_platform.h" +#include "vdec.h" + +#include "vdec_1.h" +#include "codec_mpeg12.h" + +static const struct amvdec_format vdec_formats_gxbb[] = { + { + .pixfmt = V4L2_PIX_FMT_MPEG1, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, { + .pixfmt = V4L2_PIX_FMT_MPEG2, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, +}; + +static const struct amvdec_format vdec_formats_gxl[] = { + { + .pixfmt = V4L2_PIX_FMT_MPEG1, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, { + .pixfmt = V4L2_PIX_FMT_MPEG2, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, +}; + +static const struct amvdec_format vdec_formats_gxm[] = { + { + .pixfmt = V4L2_PIX_FMT_MPEG1, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, { + .pixfmt = V4L2_PIX_FMT_MPEG2, + .min_buffers = 8, + .max_buffers = 8, + .max_width = 1920, + .max_height = 1080, + .vdec_ops = &vdec_1_ops, + .codec_ops = &codec_mpeg12_ops, + .firmware_path = "meson/vdec/gxl_mpeg12.bin", + .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, + }, +}; + +const struct vdec_platform vdec_platform_gxbb = { + .formats = vdec_formats_gxbb, + .num_formats = ARRAY_SIZE(vdec_formats_gxbb), + .revision = VDEC_REVISION_GXBB, +}; + +const struct vdec_platform vdec_platform_gxl = { + .formats = vdec_formats_gxl, + .num_formats = ARRAY_SIZE(vdec_formats_gxl), + .revision = VDEC_REVISION_GXL, +}; + +const struct vdec_platform vdec_platform_gxm = { + .formats = vdec_formats_gxm, + .num_formats = ARRAY_SIZE(vdec_formats_gxm), + .revision = VDEC_REVISION_GXM, +}; diff --git a/drivers/staging/media/meson/vdec/vdec_platform.h b/drivers/staging/media/meson/vdec/vdec_platform.h new file mode 100644 index 000000000000..f6025326db1d --- /dev/null +++ b/drivers/staging/media/meson/vdec/vdec_platform.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Maxime Jourdan <mjourdan@baylibre.com> + */ + +#ifndef __MESON_VDEC_PLATFORM_H_ +#define __MESON_VDEC_PLATFORM_H_ + +#include "vdec.h" + +struct amvdec_format; + +enum vdec_revision { + VDEC_REVISION_GXBB, + VDEC_REVISION_GXL, + VDEC_REVISION_GXM, +}; + +struct vdec_platform { + const struct amvdec_format *formats; + const u32 num_formats; + enum vdec_revision revision; +}; + +extern const struct vdec_platform vdec_platform_gxbb; +extern const struct vdec_platform vdec_platform_gxm; +extern const struct vdec_platform vdec_platform_gxl; + +#endif |