[PATCH v2] [media] v4l2: Add support for go2001 PCI codec driver

From: Thierry Escande
Date: Thu May 25 2017 - 10:43:01 EST

Next message: Babu Moger: "Re: CPU_BIG_ENDIAN in generic code (was: Re: [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN)"
Previous message: Mika Westerberg: "Re: [PATCH 06/24] thunderbolt: Introduce thunderbolt bus and connection manager"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This patch adds support for the go2001 PCI codec driver. This hardware
is present on ChromeOS based devices like the Acer ChromeBox and Acer/LG
ChromeBase 24 devices.

This driver comes from the ChromeOS v3.18 kernel tree and has been
modified to support vb2_buffer restructuring introduced in Linux v4.4.

This driver is originally developed by:
Pawel Osciak <posciak@xxxxxxxxxxxx>
Ville-Mikko Rautio <vmr@xxxxxxxxxxxx>
henryhsu <henryhsu@xxxxxxxxxxxx>
Wu-Cheng Li <wuchengli@xxxxxxxxxxxx>

Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>
---

Changes in v2:
- Removed unneeded call to dma_cache_sync() on coherent dma buffer.

drivers/media/pci/Kconfig | 2 +
drivers/media/pci/Makefile | 1 +
drivers/media/pci/go2001/Kconfig | 11 +
drivers/media/pci/go2001/Makefile | 2 +
drivers/media/pci/go2001/go2001.h | 331 ++++
drivers/media/pci/go2001/go2001_driver.c | 2563 ++++++++++++++++++++++++++++++
drivers/media/pci/go2001/go2001_hw.c | 1362 ++++++++++++++++
drivers/media/pci/go2001/go2001_hw.h | 55 +
drivers/media/pci/go2001/go2001_proto.h | 359 +++++
9 files changed, 4686 insertions(+)
create mode 100644 drivers/media/pci/go2001/Kconfig
create mode 100644 drivers/media/pci/go2001/Makefile
create mode 100644 drivers/media/pci/go2001/go2001.h
create mode 100644 drivers/media/pci/go2001/go2001_driver.c
create mode 100644 drivers/media/pci/go2001/go2001_hw.c
create mode 100644 drivers/media/pci/go2001/go2001_hw.h
create mode 100644 drivers/media/pci/go2001/go2001_proto.h

diff --git a/drivers/media/pci/Kconfig b/drivers/media/pci/Kconfig
index da28e68..837681e 100644
--- a/drivers/media/pci/Kconfig
+++ b/drivers/media/pci/Kconfig
@@ -54,5 +54,7 @@ source "drivers/media/pci/smipcie/Kconfig"
source "drivers/media/pci/netup_unidvb/Kconfig"
endif

+source "drivers/media/pci/go2001/Kconfig"
+
endif #MEDIA_PCI_SUPPORT
endif #PCI
diff --git a/drivers/media/pci/Makefile b/drivers/media/pci/Makefile
index a7e8af0..58639b7 100644
--- a/drivers/media/pci/Makefile
+++ b/drivers/media/pci/Makefile
@@ -32,3 +32,4 @@ obj-$(CONFIG_STA2X11_VIP) += sta2x11/
obj-$(CONFIG_VIDEO_SOLO6X10) += solo6x10/
obj-$(CONFIG_VIDEO_COBALT) += cobalt/
obj-$(CONFIG_VIDEO_TW5864) += tw5864/
+obj-$(CONFIG_VIDEO_GO2001) += go2001/
diff --git a/drivers/media/pci/go2001/Kconfig b/drivers/media/pci/go2001/Kconfig
new file mode 100644
index 0000000..c7b5149
--- /dev/null
+++ b/drivers/media/pci/go2001/Kconfig
@@ -0,0 +1,11 @@
+config VIDEO_GO2001
+ tristate "GO2001 codec driver"
+ depends on VIDEO_V4L2 && PCI
+ select VIDEOBUF2_DMA_SG
+ ---help---
+ This driver supports the GO2001 PCI hardware codec. This codec
+ is present on ChromeOS based devices like the Acer ChromeBox
+ and ChromeBase 24 and LG ChromeBase as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called go2001.
diff --git a/drivers/media/pci/go2001/Makefile b/drivers/media/pci/go2001/Makefile
new file mode 100644
index 0000000..20bad18
--- /dev/null
+++ b/drivers/media/pci/go2001/Makefile
@@ -0,0 +1,2 @@
+go2001-objs := go2001_driver.o go2001_hw.o
+obj-$(CONFIG_VIDEO_GO2001) += go2001.o
diff --git a/drivers/media/pci/go2001/go2001.h b/drivers/media/pci/go2001/go2001.h
new file mode 100644
index 0000000..0e5ccfd
--- /dev/null
+++ b/drivers/media/pci/go2001/go2001.h
@@ -0,0 +1,331 @@
+/*
+ * go2001 - GO2001 codec driver.
+ *
+ * Author : Pawel Osciak <posciak@xxxxxxxxxxxx>
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MEDIA_PCI_GO2001_GO2001_H_
+#define _MEDIA_PCI_GO2001_GO2001_H_
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/sizes.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+
+#include "go2001_proto.h"
+
+struct go2001_msg {
+ struct list_head list_entry;
+ struct go2001_msg_payload payload;
+};
+
+static inline struct go2001_msg_hdr *msg_to_hdr(struct go2001_msg *msg)
+{
+ return &msg->payload.hdr;
+}
+
+static inline void *msg_to_param(struct go2001_msg *msg)
+{
+ return msg->payload.param;
+}
+
+struct go2001_msg_ring {
+ struct go2001_msg_ring_desc desc;
+ void __iomem *desc_iomem;
+ void __iomem *data_iomem;
+ spinlock_t lock;
+};
+
+struct go2001_hw_inst {
+ struct list_head inst_entry;
+
+ u32 session_id;
+ u32 sequence_id;
+ u32 last_reply_seq_id;
+
+ struct list_head pending_list;
+};
+
+struct go2001_dev {
+ struct pci_dev *pdev;
+ struct v4l2_device v4l2_dev;
+ struct video_device dec_vdev;
+ struct video_device enc_vdev;
+
+ struct mutex lock;
+
+ void __iomem *iomem;
+ size_t iomem_size;
+
+ struct go2001_msg_ring tx_ring;
+ struct go2001_msg_ring rx_ring;
+ size_t max_param_size;
+
+ spinlock_t irqlock;
+ struct list_head inst_list;
+ struct list_head new_inst_list;
+ struct go2001_hw_inst *curr_hw_inst;
+
+ struct list_head ctx_list;
+
+ u32 last_reply_inst_id;
+ u32 last_reply_seq_id;
+ struct go2001_msg last_reply;
+
+ /* Last seq_id for init instance message. */
+ u32 last_init_inst_seq_id;
+ wait_queue_head_t reply_wq;
+
+ struct go2001_hw_inst ctrl_inst;
+ struct completion fw_completion;
+ /* Protected by irqlock */
+ bool fw_loaded;
+ int msgs_in_flight;
+ struct delayed_work watchdog_work;
+
+ /* Protected by lock */
+ bool initialized;
+
+ struct kmem_cache *msg_cache;
+};
+
+enum go2001_codec_mode {
+ CODEC_MODE_DECODER = (1 << 0),
+ CODEC_MODE_ENCODER = (1 << 1),
+};
+
+enum go2001_fmt_type {
+ FMT_TYPE_RAW,
+ FMT_TYPE_CODED,
+};
+
+struct go2001_fmt {
+ enum go2001_fmt_type type;
+ const char *desc;
+ u32 pixelformat;
+ unsigned int num_planes;
+ u32 hw_format;
+ unsigned long codec_modes;
+ /* Minimum pixel alignment for horizontal resolution. */
+ unsigned int h_align;
+ /* Minimum pixel alignment for vertical resolution. */
+ unsigned int v_align;
+ /* Bits per line */
+ unsigned char plane_row_depth[VIDEO_MAX_PLANES];
+ /* Bits per plane */
+ unsigned char plane_depth[VIDEO_MAX_PLANES];
+};
+
+struct go2001_ctrl {
+ u32 id;
+ enum v4l2_ctrl_type type;
+ const char *name;
+ s32 min;
+ s32 max;
+ u32 step;
+ s32 def;
+ u32 flags;
+};
+
+enum go2001_codec_state {
+ UNCOMMITTED,
+ COMMITTED,
+ NEED_HEADER_INFO,
+ RUNNING,
+ PAUSED,
+ RES_CHANGE,
+ ERROR,
+};
+
+struct go2001_frame_info {
+ unsigned int width;
+ unsigned int height;
+ unsigned int coded_width;
+ unsigned int coded_height;
+ unsigned int bytesperline[VIDEO_MAX_PLANES];
+ size_t plane_size[VIDEO_MAX_PLANES];
+};
+
+#define GO2001_REPLY_TIMEOUT_MS 10000
+#define GO2001_WATCHDOG_TIMEOUT_MS 2000
+
+struct go2001_dma_desc {
+ /* DMA address of the map list */
+ dma_addr_t dma_addr;
+ /* Number of entries on the map list */
+ int num_entries;
+ /* CPU address of the map list */
+ struct go2001_mmap_list_entry *mmap_list;
+ /* Size in bytes of the list */
+ size_t list_size;
+ /*
+ * DMA address of the first entry on the list.
+ * Used to identify the buffer when passing it to the HW.
+ */
+ u64 map_addr;
+};
+
+struct go2001_enc_params {
+ u32 bitrate;
+ u32 framerate_num;
+ u32 framerate_denom;
+ bool rc_enable;
+ bool request_keyframe;
+ bool multi_ref_frame_mode;
+ u32 frames_since_intra;
+};
+
+enum go2001_enc_param_change_bit {
+ GO2001_BITRATE_CHANGE,
+ GO2001_FRAMERATE_CHANGE,
+ GO2001_KEYFRAME_REQUESTED,
+ GO2001_PARAM_CHANGE_MAX,
+};
+
+struct go2001_runtime_enc_params {
+ struct go2001_enc_params enc_params;
+ unsigned long changed_mask[BITS_TO_LONGS(GO2001_PARAM_CHANGE_MAX)];
+};
+
+struct go2001_buffer {
+ struct vb2_buffer vb;
+ struct list_head list;
+ struct go2001_dma_desc dma_desc[VIDEO_MAX_PLANES];
+ bool mapped;
+
+ struct go2001_msg *msg;
+
+ struct go2001_runtime_enc_params rt_enc_params;
+ size_t partition_off[VP8_MAX_NUM_PARTITIONS];
+ size_t partition_size[VP8_MAX_NUM_PARTITIONS];
+};
+
+struct go2001_job {
+ struct go2001_buffer *src_buf;
+ struct go2001_buffer *dst_buf;
+};
+
+#define GO2001_MSG_POOL_SIZE VIDEO_MAX_FRAME
+struct go2001_ctx {
+ struct list_head ctx_entry;
+
+ struct mutex lock;
+ struct v4l2_fh v4l2_fh;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct go2001_dev *gdev;
+ enum go2001_codec_mode codec_mode;
+
+ struct go2001_fmt *src_fmt;
+ struct go2001_fmt *dst_fmt;
+ struct go2001_frame_info finfo;
+ size_t bitstream_buf_size;
+
+ enum go2001_codec_state state;
+ struct vb2_queue src_vq;
+ struct vb2_queue dst_vq;
+
+ spinlock_t qlock;
+ struct list_head src_buf_q;
+ struct list_head src_resume_q;
+ struct list_head dst_buf_q;
+
+ struct go2001_hw_inst hw_inst;
+
+ /* Currently running job, if any. */
+ struct go2001_job job;
+
+ struct go2001_enc_params enc_params;
+ /* Will be applied to the next source buffer queued. */
+ struct go2001_runtime_enc_params pending_rt_params;
+
+ bool need_resume;
+};
+
+static inline struct go2001_buffer *vb_to_go2001_buf(struct vb2_buffer *vb)
+{
+ return container_of(vb, struct go2001_buffer, vb);
+}
+
+static inline struct go2001_ctx *hw_inst_to_ctx(struct go2001_hw_inst *hw_inst)
+{
+ return container_of(hw_inst, struct go2001_ctx, hw_inst);
+}
+
+static inline bool go2001_has_frame_info(struct go2001_ctx *ctx)
+{
+ if (ctx->codec_mode == CODEC_MODE_DECODER)
+ return ctx->dst_fmt && ctx->finfo.width != 0;
+ else
+ return ctx->src_fmt && ctx->finfo.width != 0;
+}
+
+static inline struct go2001_ctx *fh_to_ctx(struct v4l2_fh *fh)
+{
+ return container_of(fh, struct go2001_ctx, v4l2_fh);
+}
+
+static inline struct go2001_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
+{
+ return container_of(ctrl->handler, struct go2001_ctx, ctrl_handler);
+}
+
+extern unsigned int go2001_debug_level;
+extern unsigned int go2001_fw_debug_level;
+
+#define go2001_err_nodev(fmt, args...) \
+ pr_err("%s:%d " fmt, __func__, __LINE__, ##args)
+
+#define go2001_err(gdev, fmt, args...) \
+ dev_err(&(gdev)->pdev->dev, "%s:%d " fmt, __func__, __LINE__, ##args)
+
+#define go2001_info(gdev, fmt, args...) \
+ dev_info(&(gdev)->pdev->dev, "%s:%d " fmt, __func__, __LINE__, ##args)
+
+#define go2001_dbg(gdev, level, fmt, args...) \
+ do { \
+ if (go2001_debug_level >= (level)) \
+ dev_info(&(gdev)->pdev->dev, "%s:%d " fmt, \
+ __func__, __LINE__, ##args); \
+ } while (0)
+
+#define go2001_trace(gdev) \
+ go2001_dbg((gdev), 5, "%s\n", __func__)
+
+static inline void go2001_set_ctx_state(struct go2001_ctx *ctx,
+ enum go2001_codec_state state)
+{
+ go2001_dbg(ctx->gdev, 2, "ctx %p state change %d->%d\n", ctx,
+ ctx->state, state);
+ ctx->state = state;
+}
+
+#define GO2001_MIN_NUM_BITSTREAM_BUFFERS 4
+#define GO2001_MIN_NUM_FRAME_BUFFERS 8
+#define GO2001_DEF_BITSTREAM_BUFFER_SIZE SZ_1M
+#define GO2001_DEF_BITRATE 1000000
+#define GO2001_MAX_FPS 30
+#define GO2001_DEF_RC_ENABLE 1
+#define GO2001_VPX_MACROBLOCK_SIZE 16
+
+#endif /* _MEDIA_PCI_GO2001_GO2001_H_ */
diff --git a/drivers/media/pci/go2001/go2001_driver.c b/drivers/media/pci/go2001/go2001_driver.c
new file mode 100644
index 0000000..991e41c
--- /dev/null
+++ b/drivers/media/pci/go2001/go2001_driver.c
@@ -0,0 +1,2563 @@
+/*
+ * go2001 - GO2001 codec driver.
+ *
+ * Author : Pawel Osciak <posciak@xxxxxxxxxxxx>
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kmod.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+
+#include <media/v4l2-event.h>
+#include <media/videobuf2-dma-sg.h>
+
+#include "go2001.h"
+#include "go2001_hw.h"
+
+#define DRIVER_NAME "go2001"
+#define VDEV_NAME_DEC (DRIVER_NAME "-dec")
+#define VDEV_NAME_ENC (DRIVER_NAME "-enc")
+
+#define DST_QUEUE_OFF_BASE BIT(30)
+
+unsigned int go2001_debug_level;
+unsigned int go2001_fw_debug_level;
+
+module_param(go2001_debug_level, uint, 0644);
+MODULE_PARM_DESC(go2001_debug_level, " verbosity level for debug messages.");
+
+module_param(go2001_fw_debug_level, uint, 0644);
+MODULE_PARM_DESC(go2001_fw_debug_level, " verbosity level for firmware debug messages.");
+
+static void go2001_cleanup_queue(struct go2001_ctx *ctx,
+ struct list_head *buf_list)
+{
+ struct go2001_buffer *buf, *buf_tmp;
+ int i;
+
+ assert_spin_locked(&ctx->qlock);
+
+ list_for_each_entry_safe(buf, buf_tmp, buf_list, list) {
+ list_del(&buf->list);
+ for (i = 0; i < buf->vb.num_planes; ++i)
+ vb2_set_plane_payload(&buf->vb, i, 0);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+}
+
+static void go2001_ctx_error_locked(struct go2001_ctx *ctx)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ unsigned long flags;
+
+ assert_spin_locked(&gdev->irqlock);
+
+ go2001_err(ctx->gdev, "Setting error state for ctx %p, session_id %d\n",
+ ctx, ctx->hw_inst.session_id);
+
+ go2001_cancel_hw_inst_locked(gdev, &ctx->hw_inst);
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+
+ go2001_set_ctx_state(ctx, ERROR);
+ memset(&ctx->job, 0, sizeof(struct go2001_job));
+ go2001_cleanup_queue(ctx, &ctx->src_buf_q);
+ go2001_cleanup_queue(ctx, &ctx->src_resume_q);
+ go2001_cleanup_queue(ctx, &ctx->dst_buf_q);
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+}
+
+static void go2001_cancel_all_contexts(struct go2001_dev *gdev)
+{
+ unsigned long flags;
+ struct go2001_ctx *ctx;
+
+ go2001_trace(gdev);
+
+ WARN_ON(!mutex_is_locked(&gdev->lock));
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+
+ go2001_cancel_all_hw_inst_locked(gdev);
+
+ list_for_each_entry(ctx, &gdev->ctx_list, ctx_entry)
+ go2001_ctx_error_locked(ctx);
+
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+ wake_up_all(&gdev->reply_wq);
+}
+
+static struct go2001_fmt formats[] = {
+ {
+ .type = FMT_TYPE_RAW,
+ .desc = "32bit ARGB",
+ .pixelformat = V4L2_PIX_FMT_RGB32,
+ .num_planes = 1,
+ .hw_format = GO2001_FMT_RGB888,
+ .codec_modes = CODEC_MODE_DECODER | CODEC_MODE_ENCODER,
+ .h_align = 1,
+ .v_align = 1,
+ .plane_row_depth = { 32 },
+ .plane_depth = { 32 },
+ },
+ {
+ .type = FMT_TYPE_RAW,
+ .desc = "NV12, Y/CbCr interleaved",
+ .pixelformat = V4L2_PIX_FMT_NV12M,
+ .num_planes = 2,
+ .hw_format = GO2001_FMT_YUV420_SEMIPLANAR,
+ .codec_modes = CODEC_MODE_DECODER | CODEC_MODE_ENCODER,
+ .h_align = 4,
+ .v_align = 2,
+ .plane_row_depth = { 8, 8 },
+ .plane_depth = { 8, 4 },
+ },
+ {
+ .type = FMT_TYPE_RAW,
+ .desc = "YUV420M, Y, Cb, Cr 3-planar",
+ .pixelformat = V4L2_PIX_FMT_YUV420M,
+ .num_planes = 3,
+ .hw_format = GO2001_FMT_YUV420_PLANAR,
+ .codec_modes = CODEC_MODE_ENCODER,
+ .h_align = 4,
+ .v_align = 2,
+ .plane_row_depth = { 8, 4, 4 },
+ .plane_depth = { 8, 2, 2 },
+ },
+ {
+ .type = FMT_TYPE_CODED,
+ .desc = "VP8 raw stream",
+ .pixelformat = V4L2_PIX_FMT_VP8,
+ .num_planes = 1,
+ .hw_format = GO2001_FMT_VP8,
+ .codec_modes = CODEC_MODE_DECODER | CODEC_MODE_ENCODER,
+ },
+};
+
+static struct go2001_ctrl go2001_dec_ctrls[] = {
+ {
+ .id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
+ .min = 1,
+ .max = 32,
+ .step = 1,
+ .def = 8,
+ },
+};
+
+static struct go2001_ctrl go2001_enc_ctrls[] = {
+ {
+ .id = V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 1,
+ .max = 1,
+ .step = 1,
+ .def = GO2001_DEF_RC_ENABLE,
+ },
+ {
+ .id = V4L2_CID_MPEG_VIDEO_BITRATE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 10000,
+ .max = 40000000,
+ .step = 1,
+ .def = GO2001_DEF_BITRATE,
+ },
+ {
+ .id = V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
+ .type = V4L2_CTRL_TYPE_BUTTON,
+ },
+};
+
+static struct go2001_fmt *go2001_find_fmt(struct go2001_ctx *ctx,
+ __u32 pixelformat)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(formats); ++i) {
+ if (formats[i].pixelformat == pixelformat &&
+ (ctx->codec_mode & formats[i].codec_modes))
+ return &formats[i];
+ }
+
+ go2001_dbg(ctx->gdev, 1, "Unsupported format %d.\n", pixelformat);
+
+ return NULL;
+}
+
+struct vb2_queue *go2001_get_vq(struct go2001_ctx *ctx, enum v4l2_buf_type type)
+{
+ return V4L2_TYPE_IS_OUTPUT(type) ? &ctx->src_vq : &ctx->dst_vq;
+}
+
+static int go2001_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct go2001_dev *gdev = video_drvdata(file);
+
+ strlcpy(cap->driver, DRIVER_NAME, sizeof(cap->driver));
+ strlcpy(cap->card, "GO2001 PCIe codec", sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
+ pci_name(gdev->pdev));
+
+ cap->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+ V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+
+ return 0;
+}
+
+static int go2001_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
+ unsigned int *num_planes, unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(q);
+ struct go2001_fmt *f;
+ int i;
+
+ go2001_trace(ctx->gdev);
+
+ f = V4L2_TYPE_IS_OUTPUT(q->type) ? ctx->src_fmt : ctx->dst_fmt;
+ if (!f) {
+ go2001_err(ctx->gdev, "Format(s) not selected\n");
+ return -EINVAL;
+ }
+
+ if (f->type == FMT_TYPE_CODED) {
+ if (*num_buffers < GO2001_MIN_NUM_BITSTREAM_BUFFERS)
+ *num_buffers = GO2001_MIN_NUM_BITSTREAM_BUFFERS;
+ *num_planes = 1;
+ sizes[0] = ctx->bitstream_buf_size;
+ } else if (go2001_has_frame_info(ctx)) {
+ if (*num_buffers < GO2001_MIN_NUM_FRAME_BUFFERS)
+ *num_buffers = GO2001_MIN_NUM_FRAME_BUFFERS;
+ *num_planes = f->num_planes;
+ for (i = 0; i < f->num_planes; ++i)
+ sizes[i] = ctx->finfo.plane_size[i];
+ } else {
+ go2001_err(ctx->gdev, "Invalid state\n");
+ return -EINVAL;
+ }
+
+ go2001_dbg(ctx->gdev, 2, "Num buffers: %d, planes: %d\n", *num_buffers,
+ *num_planes);
+
+ for (i = 0; i < f->num_planes; ++i)
+ go2001_dbg(ctx->gdev, 2, "Plane %d, size: %d\n", i, sizes[i]);
+
+ return 0;
+}
+
+static int go2001_buf_init(struct vb2_buffer *vb)
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct go2001_dev *gdev = ctx->gdev;
+ struct device *dev = &gdev->pdev->dev;
+ struct go2001_buffer *gbuf = vb_to_go2001_buf(vb);
+ struct go2001_dma_desc *dma_desc;
+ struct go2001_mmap_list_entry *mmap_list;
+ enum dma_data_direction dir;
+ struct scatterlist *sg;
+ struct sg_table *sgt;
+ u64 dma_addr;
+ u32 dma_len;
+ int plane, sgi;
+ int ret;
+
+ go2001_trace(gdev);
+
+ if (WARN_ON(gbuf->mapped))
+ return -EINVAL;
+
+ dir = V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type) ?
+ DMA_TO_DEVICE :
+ DMA_FROM_DEVICE;
+
+ for (plane = 0; plane < vb->num_planes; ++plane) {
+ dma_desc = &gbuf->dma_desc[plane];
+ WARN_ON(!IS_ALIGNED(dma_desc->map_addr, 16));
+
+ sgt = vb2_dma_sg_plane_desc(vb, plane);
+
+ if (!IS_ALIGNED(sgt->sgl->offset, 8) ||
+ !IS_ALIGNED(vb2_plane_size(vb, plane), 8)) {
+ go2001_err(gdev, "Plane address/size not aligned %d/%zu\n",
+ sgt->sgl->offset, vb2_plane_size(vb, plane));
+
+ ret = -EINVAL;
+ goto err;
+ }
+
+ dma_desc->num_entries = sgt->nents;
+ dma_desc->list_size = dma_desc->num_entries *
+ sizeof(struct go2001_mmap_list_entry);
+ dma_desc->mmap_list = dma_alloc_coherent(dev,
+ dma_desc->list_size,
+ &dma_desc->dma_addr,
+ GFP_KERNEL);
+ if (!dma_desc->mmap_list) {
+ go2001_err(gdev, "Failed allocating HW memory map\n");
+
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ go2001_dbg(gdev, 3, "Plane %d: mmap list size: %zu\n", plane,
+ dma_desc->list_size);
+
+ mmap_list = dma_desc->mmap_list;
+ for_each_sg(sgt->sgl, sg, dma_desc->num_entries, sgi) {
+ dma_addr = sg_dma_address(sg);
+ dma_len = sg_dma_len(sg);
+
+ mmap_list[sgi].dma_addr = cpu_to_le64(dma_addr);
+ mmap_list[sgi].size = cpu_to_le32(dma_len);
+
+ go2001_dbg(gdev, 4, "Chunk %d: 0x%08llx, size %d\n",
+ sgi, dma_addr, dma_len);
+ }
+ }
+
+ ret = go2001_map_buffer(ctx, gbuf);
+ if (ret) {
+ go2001_err(ctx->gdev, "Failed mapping buffer in HW\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ for (; plane > 0; --plane) {
+ dma_desc = &gbuf->dma_desc[plane - 1];
+ dma_free_coherent(dev, dma_desc->list_size, dma_desc->mmap_list,
+ dma_desc->dma_addr);
+ memset(dma_desc, 0, sizeof(struct go2001_dma_desc));
+ }
+
+ return ret;
+}
+
+static int go2001_buf_prepare(struct vb2_buffer *vb)
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct go2001_buffer *gbuf = vb_to_go2001_buf(vb);
+
+ return go2001_prepare_gbuf(ctx, gbuf,
+ V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type));
+}
+
+static void go2001_buf_finish(struct vb2_buffer *vb)
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct go2001_buffer *gbuf = vb_to_go2001_buf(vb);
+ size_t plane_size;
+ void *vaddr, *ptr;
+ int i;
+
+ go2001_finish_gbuf(ctx, gbuf);
+
+ /*
+ * If this is a CAPTURE encoder buffer, we need to reassemble
+ * partitions, as there may be gaps between them.
+ */
+ if (ctx->codec_mode != CODEC_MODE_ENCODER ||
+ V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type))
+ return;
+
+ plane_size = vb2_plane_size(vb, 0);
+ vaddr = vb2_plane_vaddr(vb, 0);
+ if (!vaddr) {
+ go2001_err(ctx->gdev, "Unable to map buffer\n");
+ return;
+ }
+
+ ptr = vaddr;
+
+ /*
+ * ith partition resides at partition_off[i] from start of the buffer
+ * and is of size partition_size[i]. As there may be gaps between
+ * partitions, slide them back together to remove the gaps.
+ */
+ for (i = 0; i < VP8_MAX_NUM_PARTITIONS; ++i) {
+ if (gbuf->partition_size[i] == 0)
+ break;
+
+ if (gbuf->partition_off[i] + gbuf->partition_size[i] >
+ plane_size) {
+ go2001_err(ctx->gdev, "Invalid partition %d info, off: 0x%zx, size: %zu, plane_size: %zu\n",
+ i, gbuf->partition_off[i],
+ gbuf->partition_size[i], plane_size);
+
+ return;
+ }
+
+ if (ptr != vaddr + gbuf->partition_off[i])
+ memmove(ptr, vaddr + gbuf->partition_off[i],
+ gbuf->partition_size[i]);
+
+ ptr += gbuf->partition_size[i];
+ }
+}
+
+static void go2001_buf_cleanup(struct vb2_buffer *vb)
+{
+ struct go2001_buffer *gbuf = vb_to_go2001_buf(vb);
+ struct go2001_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct go2001_dev *gdev = ctx->gdev;
+ struct device *dev = &gdev->pdev->dev;
+ struct go2001_dma_desc *dma_desc;
+ enum dma_data_direction dir;
+ int plane;
+
+ dir = V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type) ?
+ DMA_TO_DEVICE : DMA_FROM_DEVICE;
+
+ go2001_unmap_buffer(ctx, gbuf);
+
+ /* Clean up regardless of whether unmap in HW succeeded or not. */
+ for (plane = 0; plane < vb->num_planes; ++plane) {
+ dma_desc = &gbuf->dma_desc[plane];
+ if (dma_desc->mmap_list)
+ dma_free_coherent(dev, dma_desc->list_size,
+ dma_desc->mmap_list,
+ dma_desc->dma_addr);
+
+ memset(dma_desc, 0, sizeof(struct go2001_dma_desc));
+ }
+}
+
+static int go2001_enc_start_streaming(struct go2001_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ struct vb2_queue *q;
+
+ switch (ctx->state) {
+ case COMMITTED:
+ case PAUSED:
+ if (V4L2_TYPE_IS_OUTPUT(type))
+ q = &ctx->dst_vq;
+ else
+ q = &ctx->src_vq;
+
+ if (vb2_is_streaming(q))
+ go2001_set_ctx_state(ctx, RUNNING);
+ break;
+
+ default:
+ go2001_err(ctx->gdev, "Invalid state %d\n", ctx->state);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int go2001_dec_start_streaming(struct go2001_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ struct vb2_queue *q;
+
+ if (V4L2_TYPE_IS_OUTPUT(type)) {
+ if (ctx->state == COMMITTED) {
+ go2001_set_ctx_state(ctx, NEED_HEADER_INFO);
+
+ return 0;
+ }
+
+ q = &ctx->dst_vq;
+ } else {
+ q = &ctx->src_vq;
+ }
+
+ if (ctx->state == PAUSED) {
+ if (vb2_is_streaming(q))
+ go2001_set_ctx_state(ctx, RUNNING);
+
+ return 0;
+ }
+
+ go2001_err(ctx->gdev, "Invalid state %d\n", ctx->state);
+
+ return -EINVAL;
+}
+
+static int go2001_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(q);
+ unsigned long flags;
+ int ret = 0;
+
+ go2001_dbg(ctx->gdev, 2, "for %s queue\n",
+ V4L2_TYPE_IS_OUTPUT(q->type) ? "OUTPUT" : "CAPTURE");
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+
+ if (ctx->state == ERROR) {
+ go2001_dbg(ctx->gdev, 1, "Instance %p in error state\n", ctx);
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+ return -EIO;
+ }
+
+ if (ctx->codec_mode == CODEC_MODE_ENCODER)
+ ret = go2001_enc_start_streaming(ctx, q->type);
+ else
+ ret = go2001_dec_start_streaming(ctx, q->type);
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ if (!ret)
+ ret = go2001_schedule_frames(ctx);
+
+ if (ret)
+ go2001_err(ctx->gdev, "Failed to start streaming\n");
+
+ return ret;
+}
+
+static void go2001_stop_streaming(struct vb2_queue *q)
+{
+ struct go2001_ctx *ctx = vb2_get_drv_priv(q);
+ unsigned long flags;
+
+ go2001_dbg(ctx->gdev, 2, "%p for %s queue\n", ctx,
+ V4L2_TYPE_IS_OUTPUT(q->type) ? "OUTPUT" : "CAPTURE");
+
+ go2001_wait_for_ctx_done(ctx);
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+
+ switch (ctx->state) {
+ case NEED_HEADER_INFO:
+ go2001_set_ctx_state(ctx, COMMITTED);
+ break;
+
+ case RES_CHANGE:
+ if (V4L2_TYPE_IS_OUTPUT(q->type))
+ go2001_set_ctx_state(ctx, PAUSED);
+ break;
+
+ case RUNNING:
+ go2001_set_ctx_state(ctx, PAUSED);
+ break;
+
+ default:
+ break;
+ }
+
+ WARN_ON(ctx->job.src_buf || ctx->job.dst_buf);
+
+ if (V4L2_TYPE_IS_OUTPUT(q->type)) {
+ go2001_cleanup_queue(ctx, &ctx->src_buf_q);
+ go2001_cleanup_queue(ctx, &ctx->src_resume_q);
+ } else {
+ go2001_cleanup_queue(ctx, &ctx->dst_buf_q);
+ }
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+}
+
+static void go2001_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct go2001_ctx *ctx = vb2_get_drv_priv(vq);
+ struct go2001_buffer *gbuf = vb_to_go2001_buf(vb);
+ unsigned long flags;
+
+ if (ctx->codec_mode == CODEC_MODE_ENCODER &&
+ V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
+ gbuf->rt_enc_params = ctx->pending_rt_params;
+ memset(&ctx->pending_rt_params, 0,
+ sizeof(ctx->pending_rt_params));
+ }
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+
+ if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ list_add_tail(&gbuf->list, &ctx->src_buf_q);
+ else
+ list_add_tail(&gbuf->list, &ctx->dst_buf_q);
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ go2001_schedule_frames(ctx);
+}
+
+static const struct vb2_ops go2001_qops = {
+ .queue_setup = go2001_queue_setup,
+
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+
+ .buf_init = go2001_buf_init,
+ .buf_prepare = go2001_buf_prepare,
+ .buf_finish = go2001_buf_finish,
+ .buf_cleanup = go2001_buf_cleanup,
+
+ .start_streaming = go2001_start_streaming,
+ .stop_streaming = go2001_stop_streaming,
+
+ .buf_queue = go2001_buf_queue,
+};
+
+static int go2001_init_vb2_queue(struct vb2_queue *q, struct go2001_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ q->type = type;
+ q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_USERPTR;
+ q->lock = &ctx->lock;
+ q->ops = &go2001_qops;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->drv_priv = ctx;
+ q->buf_struct_size = sizeof(struct go2001_buffer);
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER && V4L2_TYPE_IS_OUTPUT(type))
+ q->allow_zero_bytesused = 1;
+
+ return vb2_queue_init(q);
+}
+
+static int go2001_dec_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ /* TODO */
+ return 0;
+}
+
+static int go2001_enc_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ /* TODO */
+ return 0;
+}
+
+static int go2001_enc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct go2001_ctx *ctx = ctrl_to_ctx(ctrl);
+
+ go2001_trace(ctx->gdev);
+
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
+ break;
+
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ set_bit(GO2001_BITRATE_CHANGE,
+ ctx->pending_rt_params.changed_mask);
+ ctx->pending_rt_params.enc_params.bitrate = ctrl->val;
+ go2001_dbg(ctx->gdev, 2, "Bitrate changed to %d bps.\n",
+ ctx->pending_rt_params.enc_params.bitrate);
+ break;
+
+ case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
+ set_bit(GO2001_KEYFRAME_REQUESTED,
+ ctx->pending_rt_params.changed_mask);
+ ctx->pending_rt_params.enc_params.request_keyframe = true;
+ go2001_dbg(ctx->gdev, 2, "Keyframe requested.\n");
+ break;
+
+ default:
+ go2001_dbg(ctx->gdev, 1, "Unsupported control id=%d, ignoring.\n",
+ ctrl->id);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops go2001_dec_ctrl_ops = {
+ .g_volatile_ctrl = go2001_dec_g_volatile_ctrl,
+};
+
+static const struct v4l2_ctrl_ops go2001_enc_ctrl_ops = {
+ .s_ctrl = go2001_enc_s_ctrl,
+ .g_volatile_ctrl = go2001_enc_g_volatile_ctrl,
+};
+
+static int go2001_init_ctrl_handler(struct go2001_ctx *ctx)
+{
+ struct v4l2_ctrl_handler *hdl = &ctx->ctrl_handler;
+ const struct v4l2_ctrl_ops *ops;
+ struct go2001_ctrl *ctrls;
+ struct go2001_ctrl *ctrl;
+ int num_ctrls;
+ int ret;
+ int i;
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER) {
+ ctrls = go2001_dec_ctrls;
+ num_ctrls = ARRAY_SIZE(go2001_dec_ctrls);
+ ops = &go2001_dec_ctrl_ops;
+ } else {
+ ctrls = go2001_enc_ctrls;
+ num_ctrls = ARRAY_SIZE(go2001_enc_ctrls);
+ ops = &go2001_enc_ctrl_ops;
+ }
+
+ ret = v4l2_ctrl_handler_init(hdl, num_ctrls);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < num_ctrls; ++i) {
+ ctrl = &ctrls[i];
+ if (V4L2_CTRL_DRIVER_PRIV(ctrl->id)) {
+ struct v4l2_ctrl_config cfg;
+
+ memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
+ cfg.ops = ops;
+ cfg.id = ctrl->id;
+ cfg.name = ctrl->name;
+ cfg.type = ctrl->type;
+ cfg.min = ctrl->min;
+ cfg.max = ctrl->max;
+ cfg.def = ctrl->def;
+ cfg.step = ctrl->step;
+ cfg.flags = ctrl->flags;
+
+ v4l2_ctrl_new_custom(hdl, &cfg, NULL);
+ } else {
+ v4l2_ctrl_new_std(hdl, ops, ctrl->id, ctrl->min,
+ ctrl->max, ctrl->step, ctrl->def);
+ }
+ }
+
+ ret = hdl->error;
+ if (ret)
+ v4l2_ctrl_handler_free(hdl);
+ else
+ ctx->v4l2_fh.ctrl_handler = hdl;
+
+ return ret;
+}
+
+static int go2001_init_ctx(struct go2001_dev *gdev, struct go2001_ctx *ctx,
+ struct file *file, struct video_device *vdev,
+ enum go2001_codec_mode mode)
+{
+ int ret;
+
+ ctx->gdev = gdev;
+ ctx->codec_mode = mode;
+
+ mutex_init(&ctx->lock);
+ spin_lock_init(&ctx->qlock);
+ INIT_LIST_HEAD(&ctx->src_buf_q);
+ INIT_LIST_HEAD(&ctx->src_resume_q);
+ INIT_LIST_HEAD(&ctx->dst_buf_q);
+ v4l2_fh_init(&ctx->v4l2_fh, vdev);
+ ctx->state = UNCOMMITTED;
+ go2001_init_hw_inst(&ctx->hw_inst, 0);
+
+ ctx->bitstream_buf_size = GO2001_DEF_BITSTREAM_BUFFER_SIZE;
+ if (ctx->codec_mode == CODEC_MODE_DECODER) {
+ ctx->src_fmt = go2001_find_fmt(ctx, V4L2_PIX_FMT_VP8);
+ ctx->dst_fmt = go2001_find_fmt(ctx, V4L2_PIX_FMT_RGB32);
+ } else {
+ ctx->src_fmt = go2001_find_fmt(ctx, V4L2_PIX_FMT_NV12M);
+ ctx->dst_fmt = go2001_find_fmt(ctx, V4L2_PIX_FMT_VP8);
+ ctx->enc_params.rc_enable = GO2001_DEF_RC_ENABLE;
+ ctx->enc_params.request_keyframe = true;
+ ctx->enc_params.bitrate = GO2001_DEF_BITRATE;
+ ctx->enc_params.framerate_num = GO2001_MAX_FPS;
+ ctx->enc_params.framerate_denom = 1;
+ }
+
+ ret = go2001_init_ctrl_handler(ctx);
+ if (ret)
+ return ret;
+
+ ret = go2001_init_vb2_queue(&ctx->src_vq, ctx,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+ if (ret)
+ return ret;
+
+ ret = go2001_init_vb2_queue(&ctx->dst_vq, ctx,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+ if (ret)
+ return ret;
+
+ mutex_lock(&gdev->lock);
+ list_add_tail(&ctx->ctx_entry, &gdev->ctx_list);
+ mutex_unlock(&gdev->lock);
+
+ file->private_data = &ctx->v4l2_fh;
+ v4l2_fh_add(&ctx->v4l2_fh);
+
+ return 0;
+}
+
+static void go2001_release_ctx(struct go2001_ctx *ctx)
+{
+ unsigned long flags;
+
+ vb2_queue_release(&ctx->src_vq);
+ vb2_queue_release(&ctx->dst_vq);
+
+ go2001_release_codec(ctx);
+
+ mutex_lock(&ctx->gdev->lock);
+ spin_lock_irqsave(&ctx->qlock, flags);
+ list_del(&ctx->ctx_entry);
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+ mutex_unlock(&ctx->gdev->lock);
+
+ v4l2_fh_del(&ctx->v4l2_fh);
+ v4l2_fh_exit(&ctx->v4l2_fh);
+
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+}
+
+static int go2001_open(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct go2001_dev *gdev = video_drvdata(file);
+ struct go2001_ctx *ctx;
+ enum go2001_codec_mode mode;
+ int ret = 0;
+
+ go2001_trace(gdev);
+
+ mutex_lock(&gdev->lock);
+ if (!gdev->initialized) {
+ ret = go2001_init(gdev);
+ if (!ret)
+ gdev->initialized = true;
+ }
+ mutex_unlock(&gdev->lock);
+
+ if (ret)
+ return ret;
+
+ if (vdev->index == gdev->dec_vdev.index) {
+ mode = CODEC_MODE_DECODER;
+ } else if (vdev->index == gdev->enc_vdev.index) {
+ mode = CODEC_MODE_ENCODER;
+ } else {
+ go2001_err(gdev, "Invalid video node\n");
+ return -ENXIO;
+ }
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ret = go2001_init_ctx(gdev, ctx, file, vdev, mode);
+ if (ret) {
+ go2001_err(gdev, "Failed initializing context\n");
+ kfree(ctx);
+ return ret;
+ }
+
+ go2001_dbg(ctx->gdev, 1, "Opened ctx %p\n", ctx);
+
+ return 0;
+}
+
+static int go2001_release(struct file *file)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ unsigned long flags;
+
+ go2001_dbg(ctx->gdev, 1, "Releasing ctx %p\n", ctx);
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+ go2001_set_ctx_state(ctx, UNCOMMITTED);
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ go2001_wait_for_ctx_done(ctx);
+ go2001_release_ctx(ctx);
+ kfree(ctx);
+
+ return 0;
+}
+
+static unsigned int go2001_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ unsigned long req_events = poll_requested_events(wait);
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *src_q = &ctx->src_vq;
+ struct vb2_queue *dst_q = &ctx->dst_vq;
+ struct vb2_buffer *src_vb = NULL, *dst_vb = NULL;
+ struct v4l2_fh *fh = &ctx->v4l2_fh;
+ unsigned long flags;
+ unsigned int rc = 0;
+
+ if (v4l2_event_pending(fh))
+ rc = POLLPRI;
+ else if (req_events & POLLPRI)
+ poll_wait(file, &fh->wait, wait);
+
+ if (!(req_events & (POLLOUT | POLLWRNORM | POLLIN | POLLRDNORM)))
+ return rc;
+
+ if ((!vb2_is_streaming(src_q) || list_empty(&src_q->queued_list)) &&
+ (!vb2_is_streaming(dst_q) || list_empty(&dst_q->queued_list))) {
+ rc |= POLLERR;
+ return rc;
+ }
+
+ poll_wait(file, &src_q->done_wq, wait);
+ poll_wait(file, &dst_q->done_wq, wait);
+
+ spin_lock_irqsave(&src_q->done_lock, flags);
+ if (!list_empty(&src_q->done_list))
+ src_vb = list_first_entry(&src_q->done_list, struct vb2_buffer,
+ done_entry);
+ if (src_vb && (src_vb->state == VB2_BUF_STATE_DONE ||
+ src_vb->state == VB2_BUF_STATE_ERROR))
+ rc |= POLLOUT | POLLWRNORM;
+ spin_unlock_irqrestore(&src_q->done_lock, flags);
+
+ spin_lock_irqsave(&dst_q->done_lock, flags);
+ if (!list_empty(&dst_q->done_list))
+ dst_vb = list_first_entry(&dst_q->done_list, struct vb2_buffer,
+ done_entry);
+ if (dst_vb && (dst_vb->state == VB2_BUF_STATE_DONE ||
+ dst_vb->state == VB2_BUF_STATE_ERROR))
+ rc |= POLLIN | POLLRDNORM;
+ spin_unlock_irqrestore(&dst_q->done_lock, flags);
+
+ return rc;
+}
+
+static int go2001_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+ int ret;
+
+ if (offset < DST_QUEUE_OFF_BASE) {
+ ret = vb2_mmap(&ctx->src_vq, vma);
+ } else {
+ vma->vm_pgoff -= (DST_QUEUE_OFF_BASE >> PAGE_SHIFT);
+ ret = vb2_mmap(&ctx->dst_vq, vma);
+ }
+
+ return ret;
+}
+
+static int go2001_handle_init_reply(struct go2001_dev *gdev,
+ struct go2001_msg *msg,
+ u32 status)
+{
+ struct go2001_init_decoder_reply *reply = msg_to_param(msg);
+ struct go2001_hw_inst *hw_inst;
+ struct go2001_ctx *ctx = NULL;
+ int ret = 0;
+
+ list_for_each_entry(hw_inst, &gdev->new_inst_list, inst_entry) {
+ if (hw_inst->sequence_id == gdev->last_reply_seq_id) {
+ ctx = hw_inst_to_ctx(hw_inst);
+ break;
+ }
+ }
+
+ if (!ctx) {
+ go2001_err(gdev, "No ctx awaiting VM_INIT_*, dropping\n");
+ return -EIO;
+ }
+
+ if (gdev->curr_hw_inst == &ctx->hw_inst)
+ gdev->curr_hw_inst = NULL;
+
+ list_del_init(&ctx->hw_inst.inst_entry);
+
+ switch (status) {
+ case GO2001_STATUS_OK:
+ go2001_init_hw_inst(&ctx->hw_inst, reply->session_id);
+ list_add_tail(&ctx->hw_inst.inst_entry, &ctx->gdev->inst_list);
+ break;
+
+ case GO2001_STATUS_RES_NA:
+ ret = -ENOMEM;
+ break;
+
+ case GO2001_STATUS_INVALID_PARAM:
+ ret = -EINVAL;
+ break;
+
+ default:
+ ret = -EIO;
+ break;
+ }
+
+ if (ret)
+ go2001_ctx_error_locked(ctx);
+
+ return ret;
+}
+
+static void go2001_handle_release_instance_reply(struct go2001_ctx *ctx)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+ ctx->hw_inst.session_id = 0;
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+}
+
+static void go2001_calc_finfo(struct go2001_ctx *ctx, struct go2001_fmt *fmt,
+ struct go2001_frame_info *finfo,
+ unsigned int width, unsigned int height)
+{
+ int i;
+
+ finfo->width = round_up(width, fmt->h_align);
+ finfo->height = round_up(height, fmt->v_align);
+ finfo->coded_width = round_up(finfo->width, GO2001_VPX_MACROBLOCK_SIZE);
+ finfo->coded_height = round_up(finfo->height,
+ GO2001_VPX_MACROBLOCK_SIZE);
+
+ go2001_dbg(ctx->gdev, 2, "Visible (coded) resolution: %ux%u (%ux%u)\n",
+ finfo->width, finfo->height, finfo->coded_width,
+ finfo->coded_height);
+
+ for (i = 0; i < fmt->num_planes; ++i) {
+ finfo->bytesperline[i] =
+ (finfo->coded_width * fmt->plane_row_depth[i]) / 8;
+ finfo->plane_size[i] = (finfo->coded_width *
+ finfo->coded_height *
+ fmt->plane_depth[i]) / 8;
+ go2001_dbg(ctx->gdev, 2, "Plane %d: bpl: %u, size: %zu\n",
+ i, finfo->bytesperline[i], finfo->plane_size[i]);
+ }
+}
+
+static int go2001_handle_new_info(struct go2001_ctx *ctx,
+ struct go2001_get_info_reply *reply)
+{
+ struct go2001_frame_info *finfo = &ctx->finfo;
+ struct go2001_fmt *fmt;
+
+ fmt = (ctx->codec_mode == CODEC_MODE_DECODER) ?
+ ctx->dst_fmt : ctx->src_fmt;
+
+ go2001_dbg(ctx->gdev, 2, "HW reports new resolution: %ux%u (%ux%u)\n",
+ reply->visible_width, reply->visible_height,
+ reply->coded_width, reply->coded_height);
+
+ go2001_calc_finfo(ctx, fmt, finfo, reply->visible_width,
+ reply->visible_height);
+
+ if (finfo->width != reply->visible_width ||
+ finfo->height != reply->visible_height ||
+ finfo->coded_width != reply->coded_width ||
+ finfo->coded_height != reply->coded_height) {
+ go2001_err(ctx->gdev, "Invalid resolution from the HW\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int go2001_handle_get_info_reply(struct go2001_ctx *ctx,
+ struct go2001_msg *msg, u32 status)
+{
+ struct go2001_get_info_reply *reply = msg_to_param(msg);
+
+ if (status != GO2001_STATUS_OK)
+ return -EIO;
+
+ return go2001_handle_new_info(ctx, reply);
+}
+
+static int go2001_fill_dst_buf_info(struct go2001_ctx *ctx,
+ struct go2001_job *job,
+ struct go2001_msg *reply, bool error)
+{
+ struct vb2_v4l2_buffer *src_vbuf;
+ struct vb2_v4l2_buffer *dst_vbuf;
+ int i;
+
+ src_vbuf = to_vb2_v4l2_buffer(&job->src_buf->vb);
+ dst_vbuf = to_vb2_v4l2_buffer(&job->dst_buf->vb);
+
+ switch (ctx->codec_mode) {
+ case CODEC_MODE_DECODER:
+ for (i = 0; i < dst_vbuf->vb2_buf.num_planes; ++i) {
+ vb2_set_plane_payload(&dst_vbuf->vb2_buf, i,
+ error ?
+ 0 :
+ ctx->finfo.plane_size[i]);
+ }
+ break;
+
+ case CODEC_MODE_ENCODER: {
+ struct go2001_empty_buffer_enc_reply *enc_reply =
+ msg_to_param(reply);
+ struct go2001_buffer *gbuf;
+
+ gbuf = vb_to_go2001_buf(&dst_vbuf->vb2_buf);
+
+ memset(gbuf->partition_off, 0, sizeof(gbuf->partition_off));
+ memset(gbuf->partition_size, 0, sizeof(gbuf->partition_size));
+
+ /*
+ * Partitions may have gaps between them, we will have to
+ * reassemble the bitstream later in buf_finish. For now just
+ * save the size and offset of each partition and set the
+ * payload for the buffer to the sum of sizes (returned in
+ * enc_reply->payload_size).
+ */
+ if (enc_reply->payload_size >
+ vb2_plane_size(&dst_vbuf->vb2_buf, 0) || error) {
+ vb2_set_plane_payload(&dst_vbuf->vb2_buf, 0, 0);
+ return -EINVAL;
+ }
+
+ vb2_set_plane_payload(&dst_vbuf->vb2_buf, 0,
+ enc_reply->payload_size);
+
+ for (i = 0; i < VP8_MAX_NUM_PARTITIONS; ++i) {
+ gbuf->partition_off[i] = enc_reply->partition_off[i];
+ gbuf->partition_size[i] = enc_reply->partition_size[i];
+ }
+
+ dst_vbuf->flags = 0;
+ if (enc_reply->frame_type ==
+ GO2001_EMPTY_BUF_ENC_FRAME_KEYFRAME)
+ dst_vbuf->flags = V4L2_BUF_FLAG_KEYFRAME;
+ break;
+ }
+ default:
+ WARN_ON(1);
+ break;
+ }
+
+ dst_vbuf->timecode = src_vbuf->timecode;
+ dst_vbuf->vb2_buf.timestamp = src_vbuf->vb2_buf.timestamp;
+
+ go2001_dbg(ctx->gdev, 5, "Returning frame ts=%llu\n",
+ dst_vbuf->vb2_buf.timestamp);
+
+ return 0;
+}
+
+static int go2001_handle_empty_buffer_reply(struct go2001_ctx *ctx,
+ struct go2001_msg *msg, u32 status)
+{
+ enum vb2_buffer_state src_state = VB2_BUF_STATE_DONE;
+ enum vb2_buffer_state dst_state = VB2_BUF_STATE_DONE;
+ struct go2001_job *job;
+ struct go2001_buffer *src_buf, *dst_buf;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+ job = &ctx->job;
+ src_buf = job->src_buf;
+ if (!src_buf) {
+ go2001_err(ctx->gdev, "No src buffer!\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ list_del(&src_buf->list);
+
+ dst_buf = job->dst_buf;
+
+ switch (status) {
+ case GO2001_STATUS_NEW_PICTURE_SIZE: {
+ static const struct v4l2_event ev_src_ch = {
+ .type = V4L2_EVENT_SOURCE_CHANGE,
+ .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+ };
+ struct go2001_empty_buffer_dec_reply *dec_reply =
+ msg_to_param(msg);
+
+ WARN_ON(ctx->state != NEED_HEADER_INFO &&
+ ctx->state != RUNNING);
+
+ go2001_handle_new_info(ctx, &dec_reply->info);
+ v4l2_event_queue_fh(&ctx->v4l2_fh, &ev_src_ch);
+ go2001_set_ctx_state(ctx, RES_CHANGE);
+ /* Fallthrough */
+ }
+ case GO2001_STATUS_WAITING_PICTURE_SIZE_CHANGED:
+ ctx->need_resume = true;
+ /*
+ * We will retry this frame after reallocating output buffers.
+ * Add the source buffer to the resume queue, which will
+ * be spliced in front of the source queue after reallocation.
+ */
+ go2001_dbg(ctx->gdev, 3, "Pending buffer %p\n", src_buf);
+ list_add_tail(&src_buf->list, &ctx->src_resume_q);
+ break;
+
+ case GO2001_STATUS_STREAM_ERROR:
+ src_state = VB2_BUF_STATE_ERROR;
+ /* Fallthrough */
+ case GO2001_STATUS_OK:
+ vb2_buffer_done(&src_buf->vb, src_state);
+ if (!dst_buf)
+ break;
+
+ if (go2001_fill_dst_buf_info(ctx, job, msg,
+ dst_state == VB2_BUF_STATE_ERROR))
+ dst_state = VB2_BUF_STATE_ERROR;
+
+ list_del(&dst_buf->list);
+ vb2_buffer_done(&dst_buf->vb, dst_state);
+ break;
+
+ case GO2001_STATUS_NO_OUTPUT:
+ vb2_buffer_done(&src_buf->vb, src_state);
+ /*
+ * No output produced, reuse dst_buf for next job
+ * without returning the buffer to userspace.
+ */
+ break;
+
+ default:
+ ret = -EIO;
+ break;
+ }
+
+out:
+ job->src_buf = NULL;
+ job->dst_buf = NULL;
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ return ret;
+}
+
+static void go2001_handle_get_version_reply(struct go2001_dev *gdev,
+ struct go2001_msg *msg)
+{
+ struct go2001_get_version_reply *reply = msg_to_param(msg);
+
+ dev_info(&gdev->pdev->dev, "GO2001 ver: %d/%d, VP8 decoder: %d/%d VP8 encoder: %d/%d, VP9 decoder: %d/%d\n",
+ reply->hw_ver, reply->sw_ver, reply->vp8dec_hw_ver,
+ reply->vp8dec_sw_ver, reply->vp8enc_hw_ver,
+ reply->vp8enc_sw_ver, reply->vp9dec_hw_ver,
+ reply->vp9dec_sw_ver);
+}
+
+static inline int go2001_handle_reply_default(struct go2001_dev *gdev, u32 type,
+ u32 status)
+{
+ int ret = 0;
+
+ switch (status) {
+ case GO2001_STATUS_OK:
+ break;
+
+ case GO2001_STATUS_NEW_PICTURE_SIZE:
+ case GO2001_STATUS_WAITING_PICTURE_SIZE_CHANGED:
+ case GO2001_STATUS_STREAM_ERROR:
+ case GO2001_STATUS_NO_OUTPUT:
+ WARN_ON(type != GO2001_VM_EMPTY_BUFFER);
+ go2001_err(gdev, "Unexpected status in reply\n");
+ ret = -EIO;
+ break;
+
+ case GO2001_STATUS_RES_NA:
+ go2001_err(gdev, "Hardware ran out of resources\n");
+ ret = -ENOMEM;
+ break;
+
+ case GO2001_STATUS_INVALID_PARAM:
+ go2001_err(gdev, "Invalid parameters\n");
+ ret = -EINVAL;
+ break;
+
+ default:
+ go2001_err(gdev, "Invalid status in reply\n");
+ ret = -EIO;
+ break;
+ }
+
+ return ret;
+}
+
+static struct go2001_hw_inst *find_hw_inst_by_id_locked(struct go2001_dev *gdev,
+ u32 session_id)
+{
+ struct go2001_hw_inst *hw_inst;
+
+ list_for_each_entry(hw_inst, &gdev->inst_list, inst_entry)
+ if (hw_inst->session_id == session_id)
+ return hw_inst;
+
+ return NULL;
+}
+
+static int go2001_process_reply(struct go2001_dev *gdev,
+ struct go2001_msg *reply)
+{
+ struct go2001_hw_inst *hw_inst;
+ struct go2001_ctx *ctx = NULL;
+ struct go2001_msg_hdr *hdr = msg_to_hdr(reply);
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+
+ hw_inst = find_hw_inst_by_id_locked(gdev, hdr->session_id);
+ if (!hw_inst) {
+ go2001_err(gdev, "Got reply for an invalid instance id %d\n",
+ hdr->session_id);
+ ret = -EIO;
+ goto out;
+ }
+
+ if (hdr->type != GO2001_VM_EVENT_ASSERT &&
+ hdr->type != GO2001_VM_EVENT_LOG) {
+ if (WARN_ON(gdev->msgs_in_flight == 0)) {
+ go2001_err(gdev, "Unexpected reply without a request\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ cancel_delayed_work(&gdev->watchdog_work);
+ --gdev->msgs_in_flight;
+ if (gdev->msgs_in_flight > 0)
+ schedule_delayed_work(&gdev->watchdog_work,
+ msecs_to_jiffies(GO2001_WATCHDOG_TIMEOUT_MS));
+
+ go2001_dbg(gdev, 3, "Messages in flight: %d\n",
+ gdev->msgs_in_flight);
+
+ gdev->last_reply_inst_id = hdr->session_id;
+ gdev->last_reply_seq_id = hdr->sequence_id;
+
+ WARN_ON(hw_inst->last_reply_seq_id + 1 != hdr->sequence_id);
+ hw_inst->last_reply_seq_id = hdr->sequence_id;
+ }
+
+ if (hdr->session_id != 0)
+ ctx = hw_inst_to_ctx(hw_inst);
+
+ switch (hdr->type) {
+ case GO2001_VM_INIT_DECODER:
+ case GO2001_VM_INIT_ENCODER:
+ go2001_dbg(gdev, 5, "VM_INIT reply\n");
+ ret = go2001_handle_init_reply(gdev, reply, hdr->status);
+ break;
+
+ case GO2001_VM_GET_VERSION:
+ go2001_dbg(gdev, 5, "VM_GET_VERSION reply\n");
+ go2001_handle_get_version_reply(gdev, reply);
+ break;
+
+ case GO2001_VM_SET_MMAP:
+ case GO2001_VM_RELEASE_MMAP:
+ go2001_dbg(gdev, 5, "VM_*_MMAP reply\n");
+ ret = go2001_handle_reply_default(gdev, hdr->type, hdr->status);
+ break;
+
+ case GO2001_VM_EMPTY_BUFFER:
+ go2001_dbg(gdev, 5, "VM_EMPTY_BUFFER reply\n");
+ ret = go2001_handle_empty_buffer_reply(ctx, reply, hdr->status);
+ break;
+
+ case GO2001_VM_GET_INFO:
+ go2001_dbg(gdev, 5, "VM_GET_INFO reply\n");
+ ret = go2001_handle_get_info_reply(ctx, reply, hdr->status);
+ break;
+
+ case GO2001_VM_SET_CTRL:
+ go2001_dbg(gdev, 5, "VM_SET_CTRL reply\n");
+ ret = go2001_handle_reply_default(gdev, hdr->type, hdr->status);
+ break;
+
+ case GO2001_VM_RELEASE:
+ go2001_dbg(gdev, 5, "VM_RELEASE reply\n");
+ go2001_handle_release_instance_reply(ctx);
+ break;
+
+ case GO2001_VM_EVENT_ASSERT: {
+ struct go2001_event_assert_reply *a = msg_to_param(reply);
+
+ a->filename[ARRAY_SIZE(a->filename) - 1] = '\0';
+ a->funcname[ARRAY_SIZE(a->funcname) - 1] = '\0';
+ a->expr[ARRAY_SIZE(a->expr) - 1] = '\0';
+ go2001_err(gdev, "FW ASSERT at %s:%d in %s, executing %s\n",
+ a->filename, a->line_no, a->funcname, a->expr);
+ ret = -EIO;
+ break;
+ }
+
+ case GO2001_VM_EVENT_LOG: {
+ struct go2001_event_log_reply *l = msg_to_param(reply);
+
+ l->data[ARRAY_SIZE(l->data) - 1] = '\0';
+ go2001_err(gdev, "VM_EVENT_LOG: %s\n", l->data);
+ break;
+ }
+
+ case GO2001_VM_SET_LOG_LEVEL: {
+ struct go2001_set_log_level_reply *l = msg_to_param(reply);
+
+ go2001_dbg(gdev, 1, "VM_SET_LOG_LEVEL: %d\n", l->level);
+ ret = go2001_handle_reply_default(gdev, hdr->type, hdr->status);
+ break;
+ }
+
+ default:
+ go2001_err(gdev, "Unexpected reply [%d:%d], type=0x%x\n",
+ hdr->session_id, hdr->sequence_id, hdr->type);
+ ret = -EIO;
+ break;
+ }
+
+out:
+ if (ret) {
+ go2001_err(gdev, "Error %d for reply [%d:%d] type=0x%x, status=0x%x\n",
+ ret, hdr->session_id, hdr->sequence_id, hdr->type,
+ hdr->status);
+ if (ctx)
+ go2001_ctx_error_locked(ctx);
+ }
+
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ if (ctx && ret == 0)
+ go2001_schedule_frames(ctx);
+ /*
+ * Critical failure only on EIO, otherwise we may be able to continue
+ * using other instances.
+ */
+ return ret == -EIO ? ret : 0;
+}
+
+static void go2001_watchdog(struct work_struct *work)
+{
+ int ret;
+ struct go2001_dev *gdev = container_of(to_delayed_work(work),
+ struct go2001_dev,
+ watchdog_work);
+
+ go2001_err(gdev, "Watchdog resetting firmware\n");
+
+ mutex_lock(&gdev->lock);
+
+ go2001_cancel_all_contexts(gdev);
+ gdev->msgs_in_flight = 0;
+
+ ret = go2001_init(gdev);
+ if (ret) {
+ gdev->initialized = false;
+ go2001_err(gdev, "Failed resetting firmware\n");
+ }
+
+ mutex_unlock(&gdev->lock);
+}
+
+static irqreturn_t go2001_irq(int irq, void *priv)
+{
+ struct go2001_dev *gdev = priv;
+ struct go2001_msg *reply = &gdev->last_reply;
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ if (unlikely(!gdev->fw_loaded)) {
+ gdev->fw_loaded = true;
+ complete(&gdev->fw_completion);
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+ return IRQ_HANDLED;
+ }
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ while (go2001_get_reply(gdev, reply) == 0) {
+ ret = go2001_process_reply(gdev, reply);
+ wake_up_all(&gdev->reply_wq);
+ if (ret)
+ return IRQ_HANDLED;
+ }
+
+ go2001_send_pending(gdev);
+
+ return IRQ_HANDLED;
+}
+
+static const struct v4l2_file_operations go2001_fops = {
+ .owner = THIS_MODULE,
+ .open = go2001_open,
+ .release = go2001_release,
+ .unlocked_ioctl = video_ioctl2,
+ .poll = go2001_poll,
+ .mmap = go2001_mmap,
+};
+
+static int go2001_enum_fmt(enum go2001_codec_mode codec_mode,
+ enum go2001_fmt_type type, struct v4l2_fmtdesc *f)
+{
+ struct go2001_fmt *fmt;
+ int num_matched = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(formats); ++i) {
+ fmt = &formats[i];
+ if (!(codec_mode & fmt->codec_modes) || fmt->type != type)
+ continue;
+
+ if (num_matched == f->index) {
+ strlcpy(f->description, fmt->desc,
+ sizeof(f->description));
+ f->pixelformat = fmt->pixelformat;
+ if (type == FMT_TYPE_CODED)
+ f->flags = V4L2_FMT_FLAG_COMPRESSED;
+
+ return 0;
+ }
+
+ ++num_matched;
+ }
+
+ return -EINVAL;
+}
+
+static int go2001_enum_fmt_cap(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER)
+ return go2001_enum_fmt(ctx->codec_mode, FMT_TYPE_RAW, f);
+
+ return go2001_enum_fmt(ctx->codec_mode, FMT_TYPE_CODED, f);
+}
+
+static int go2001_enum_fmt_out(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER)
+ return go2001_enum_fmt(ctx->codec_mode, FMT_TYPE_CODED, f);
+
+ return go2001_enum_fmt(ctx->codec_mode, FMT_TYPE_RAW, f);
+}
+
+static int fill_v4l2_format_raw(struct v4l2_format *f, struct go2001_fmt *gfmt,
+ struct go2001_frame_info *finfo)
+{
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ int i;
+
+ pix_mp->width = finfo->coded_width;
+ pix_mp->height = finfo->coded_height;
+ pix_mp->pixelformat = gfmt->pixelformat;
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->num_planes = gfmt->num_planes;
+
+ for (i = 0; i < pix_mp->num_planes; ++i) {
+ pix_mp->plane_fmt[i].bytesperline = finfo->bytesperline[i];
+ pix_mp->plane_fmt[i].sizeimage = finfo->plane_size[i];
+ }
+
+ return 0;
+}
+
+static void fill_v4l2_format_coded(struct v4l2_format *f,
+ struct go2001_fmt *gfmt, size_t buf_size)
+{
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+
+ pix_mp->width = 0;
+ pix_mp->height = 0;
+ pix_mp->pixelformat = gfmt->pixelformat;
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->num_planes = 1;
+ pix_mp->plane_fmt[0].bytesperline = 0;
+
+ if (buf_size != 0) {
+ pix_mp->plane_fmt[0].sizeimage = buf_size;
+ } else if (pix_mp->plane_fmt[0].sizeimage == 0) {
+ pix_mp->plane_fmt[0].sizeimage =
+ GO2001_DEF_BITSTREAM_BUFFER_SIZE;
+ }
+}
+
+static int go2001_dec_g_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "Frame info not available yet\n");
+ return -EINVAL;
+ }
+
+ return fill_v4l2_format_raw(f, ctx->dst_fmt, &ctx->finfo);
+}
+
+static int go2001_enc_g_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "Frame info not available yet\n");
+ return -EINVAL;
+ }
+
+ return fill_v4l2_format_raw(f, ctx->dst_fmt, &ctx->finfo);
+}
+
+static int go2001_dec_g_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (!ctx->src_fmt) {
+ go2001_dbg(ctx->gdev, 1, "Format not ready yet\n");
+ return -EINVAL;
+ }
+
+ fill_v4l2_format_coded(f, ctx->src_fmt, ctx->bitstream_buf_size);
+
+ return 0;
+}
+
+static int go2001_enc_g_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+
+ if (!ctx->dst_fmt) {
+ go2001_dbg(ctx->gdev, 1, "Format not ready yet\n");
+ return -EINVAL;
+ }
+
+ fill_v4l2_format_coded(f, ctx->dst_fmt, ctx->bitstream_buf_size);
+
+ return 0;
+}
+
+static struct go2001_fmt *__go2001_dec_try_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ struct go2001_fmt *fmt;
+
+ fmt = go2001_find_fmt(ctx, pix_mp->pixelformat);
+ if (!fmt || fmt->type != FMT_TYPE_CODED)
+ return NULL;
+
+ fill_v4l2_format_coded(f, fmt, 0);
+
+ return fmt;
+}
+
+static int go2001_dec_try_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_fmt *fmt = __go2001_dec_try_fmt_out(file, fh, f);
+
+ return fmt ? 0 : -EINVAL;
+}
+
+static struct go2001_fmt *__go2001_dec_try_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ struct go2001_fmt *fmt;
+
+ /*
+ * S_FMT on CAPTURE allows setting destination fourcc only,
+ * resolution is set after parsing headers and comes from the HW.
+ */
+ fmt = go2001_find_fmt(ctx, pix_mp->pixelformat);
+ if (!fmt || fmt->type != FMT_TYPE_RAW)
+ return NULL;
+
+ return fmt;
+}
+
+static int go2001_dec_try_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_fmt *fmt = __go2001_dec_try_fmt_cap(file, fh, f);
+
+ return fmt ? 0 : -EINVAL;
+}
+
+static struct go2001_fmt *__go2001_enc_try_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f,
+ struct go2001_frame_info *finfo)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ struct go2001_fmt *fmt;
+
+ fmt = go2001_find_fmt(ctx, pix_mp->pixelformat);
+ if (!fmt || fmt->type != FMT_TYPE_RAW)
+ return NULL;
+
+ go2001_calc_finfo(ctx, fmt, finfo, pix_mp->width, pix_mp->height);
+ fill_v4l2_format_raw(f, fmt, finfo);
+
+ return fmt;
+}
+
+static int go2001_enc_try_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_frame_info finfo;
+ struct go2001_fmt *fmt = __go2001_enc_try_fmt_out(file, fh, f, &finfo);
+
+ return fmt ? 0 : -EINVAL;
+}
+
+static struct go2001_fmt *__go2001_enc_try_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_fmt *fmt;
+
+ fmt = go2001_find_fmt(ctx, f->fmt.pix_mp.pixelformat);
+ if (!fmt || fmt->type != FMT_TYPE_CODED)
+ return NULL;
+
+ fill_v4l2_format_coded(f, fmt, 0);
+
+ /* TODO: This should allow setting scaling */
+ return fmt;
+}
+
+static int go2001_enc_try_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_fmt *fmt = __go2001_enc_try_fmt_cap(file, fh, f);
+
+ return fmt ? 0 : -EINVAL;
+}
+
+static int go2001_dec_s_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_fmt *fmt;
+
+ go2001_trace(ctx->gdev);
+
+ if (ctx->state != UNCOMMITTED) {
+ go2001_err(ctx->gdev, "Format cannot be set in this state\n");
+ return -EBUSY;
+ }
+
+ fmt = __go2001_dec_try_fmt_out(file, fh, f);
+ if (!fmt)
+ return -EINVAL;
+
+ ctx->src_fmt = fmt;
+ ctx->bitstream_buf_size = f->fmt.pix_mp.plane_fmt[0].sizeimage;
+
+ go2001_dbg(ctx->gdev, 1, "S_FMT on OUTPUT to %s\n", fmt->desc);
+
+ return 0;
+}
+
+static int go2001_dec_s_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_fmt *fmt;
+
+ go2001_trace(ctx->gdev);
+
+ if (ctx->state != UNCOMMITTED) {
+ go2001_err(ctx->gdev, "Format cannot be set in this state\n");
+ return -EBUSY;
+ }
+
+ fmt = __go2001_dec_try_fmt_cap(file, fh, f);
+ if (!fmt)
+ return -EINVAL;
+
+ ctx->dst_fmt = fmt;
+ memset(&ctx->finfo, 0, sizeof(ctx->finfo));
+
+ go2001_dbg(ctx->gdev, 1, "S_FMT on CAPTURE to %s\n", fmt->desc);
+
+ return 0;
+}
+
+static int go2001_enc_s_fmt_out(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_frame_info finfo;
+ struct go2001_fmt *fmt;
+
+ go2001_trace(ctx->gdev);
+
+ if (ctx->state != UNCOMMITTED) {
+ go2001_err(ctx->gdev, "Format cannot be set in this state\n");
+ return -EBUSY;
+ }
+
+ fmt = __go2001_enc_try_fmt_out(file, fh, f, &finfo);
+ if (!fmt)
+ return -EINVAL;
+
+ /* At 1280x720 and below go2001 can do three reference frames. */
+ ctx->enc_params.multi_ref_frame_mode =
+ finfo.width * finfo.height <= 1280 * 720;
+
+ ctx->src_fmt = fmt;
+ ctx->finfo = finfo;
+
+ go2001_dbg(ctx->gdev, 1, "S_FMT on OUTPUT to %s, planes:%d\n",
+ fmt->desc, f->fmt.pix_mp.num_planes);
+
+ return 0;
+}
+
+static int go2001_enc_s_fmt_cap(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_fmt *fmt;
+
+ go2001_trace(ctx->gdev);
+
+ if (ctx->state != UNCOMMITTED) {
+ go2001_err(ctx->gdev, "Format cannot be set in this state\n");
+ return -EBUSY;
+ }
+
+ fmt = __go2001_enc_try_fmt_cap(file, fh, f);
+ if (!fmt)
+ return -EINVAL;
+
+ ctx->dst_fmt = fmt;
+ ctx->bitstream_buf_size = f->fmt.pix_mp.plane_fmt[0].sizeimage;
+
+ go2001_dbg(ctx->gdev, 1, "S_FMT on CAPTURE to %s\n", fmt->desc);
+
+ return 0;
+}
+
+static int go2001_enc_g_crop(struct file *file, void *fh, struct v4l2_crop *c)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_frame_info *finfo = &ctx->finfo;
+
+ go2001_trace(ctx->gdev);
+
+ if (!V4L2_TYPE_IS_OUTPUT(c->type)) {
+ go2001_err(ctx->gdev, "G_CROP on CAPTURE for encoder unsupported\n");
+ return -EINVAL;
+ }
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "Frame info not available yet\n");
+ return -EINVAL;
+ }
+
+ c->c.left = 0;
+ c->c.top = 0;
+ c->c.width = finfo->width;
+ c->c.height = finfo->height;
+ go2001_dbg(ctx->gdev, 2, "Crop: (%d, %d) -> (%u, %u)\n",
+ c->c.left, c->c.top, c->c.width, c->c.height);
+
+ return 0;
+}
+
+static int go2001_enc_s_crop(struct file *file, void *fh,
+ const struct v4l2_crop *c)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_frame_info *finfo = &ctx->finfo;
+ int aligned_w, aligned_h;
+ struct go2001_fmt *fmt;
+
+ go2001_trace(ctx->gdev);
+
+ if (!V4L2_TYPE_IS_OUTPUT(c->type)) {
+ go2001_err(ctx->gdev, "Crop can only be set on the OUTPUT queue\n");
+ return -EINVAL;
+ }
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "Crop must be set after setting format\n");
+ return -EINVAL;
+ }
+
+ fmt = ctx->src_fmt;
+
+ aligned_w = round_up(c->c.width, fmt->h_align);
+ aligned_h = round_up(c->c.height, fmt->v_align);
+
+ if (finfo->width != c->c.width || finfo->height != c->c.height) {
+ go2001_dbg(ctx->gdev, 1, "Adjusted crop from (%d, %d) to (%d, %d)\n",
+ c->c.width, c->c.height, aligned_w, aligned_h);
+ }
+
+ if (c->c.left != 0 || c->c.top != 0 || aligned_w > finfo->coded_width ||
+ aligned_h > finfo->coded_height) {
+ go2001_err(ctx->gdev, "Invalid crop (%d, %d) -> (%u, %u) for coded size %ux%u\n",
+ c->c.left, c->c.top, aligned_w, aligned_h,
+ finfo->coded_width, finfo->coded_height);
+ return -EINVAL;
+ }
+
+ finfo->width = aligned_w;
+ finfo->height = aligned_h;
+ go2001_dbg(ctx->gdev, 2, "Visible size set to %ux%u\n",
+ finfo->width, finfo->height);
+ return 0;
+}
+
+static int go2001_dec_g_crop(struct file *file, void *fh, struct v4l2_crop *c)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct go2001_frame_info *finfo = &ctx->finfo;
+
+ go2001_trace(ctx->gdev);
+
+ if (V4L2_TYPE_IS_OUTPUT(c->type)) {
+ go2001_err(ctx->gdev, "G_CROP on OUTPUT for decoder unsupported\n");
+ return -EINVAL;
+ }
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_dbg(ctx->gdev, 1, "Frame info not ready\n");
+ return -EINVAL;
+ }
+
+ c->c.left = 0;
+ c->c.top = 0;
+ c->c.width = finfo->width;
+ c->c.height = finfo->height;
+ go2001_dbg(ctx->gdev, 2, "Crop: (%d, %d) -> (%u, %u)\n",
+ c->c.left, c->c.top, c->c.width, c->c.height);
+
+ return 0;
+}
+
+static int go2001_enc_s_parm(struct file *file, void *fh,
+ struct v4l2_streamparm *p)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct v4l2_fract *timeperframe;
+ int fps;
+
+ go2001_trace(ctx->gdev);
+
+ if (p->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return -EINVAL;
+
+ timeperframe = &p->parm.output.timeperframe;
+ if (timeperframe->numerator == 0 || timeperframe->denominator == 0) {
+ go2001_err(ctx->gdev, "Invalid values for timeperframe\n");
+ return -EINVAL;
+ }
+
+ /* For now just normalize to 1/x sec/frame. */
+ fps = timeperframe->denominator / timeperframe->numerator;
+ fps = max(1, fps);
+ ctx->pending_rt_params.enc_params.framerate_num = fps;
+ ctx->pending_rt_params.enc_params.framerate_denom = 1;
+ set_bit(GO2001_FRAMERATE_CHANGE, ctx->pending_rt_params.changed_mask);
+ go2001_dbg(ctx->gdev, 2, "FPS changed to %d\n", fps);
+
+ return 0;
+}
+
+static int go2001_enc_g_parm(struct file *file, void *fh,
+ struct v4l2_streamparm *p)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(fh);
+ struct v4l2_fract *timeperframe;
+
+ if (p->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return -EINVAL;
+
+ memset(&p->parm, 0, sizeof(p->parm));
+ p->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
+ timeperframe = &p->parm.output.timeperframe;
+ timeperframe->numerator = ctx->enc_params.framerate_denom;
+ timeperframe->denominator = ctx->enc_params.framerate_num;
+
+ return 0;
+}
+
+static int go2001_reqbufs_out(struct go2001_ctx *ctx,
+ struct v4l2_requestbuffers *rb)
+{
+ struct vb2_queue *vq = &ctx->src_vq;
+ int ret;
+
+ go2001_dbg(ctx->gdev, 3, "count: %d\n", rb->count);
+
+ if (rb->count == 0)
+ return vb2_reqbufs(vq, rb);
+
+ if (!ctx->src_fmt || !ctx->dst_fmt) {
+ go2001_err(ctx->gdev, "Formats not set\n");
+ return -EINVAL;
+ }
+
+ if (ctx->codec_mode == CODEC_MODE_ENCODER &&
+ !go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "No frame info available yet\n");
+ return -EINVAL;
+ }
+
+ if (ctx->state == UNCOMMITTED) {
+ ret = go2001_init_codec(ctx);
+ if (ret) {
+ go2001_err(ctx->gdev, "Failed initializing codec\n");
+ return ret;
+ }
+
+ go2001_set_ctx_state(ctx, COMMITTED);
+ }
+
+ return vb2_reqbufs(vq, rb);
+}
+
+static int go2001_move_from_resume_queue(struct go2001_ctx *ctx)
+{
+ struct list_head temp_list;
+ struct go2001_buffer *gbuf;
+ unsigned long flags;
+ int ret = 0;
+
+ /*
+ * The buffer which triggered the resolution change, and any buffers
+ * which might have followed it and were sent by us to the hardware
+ * before we got the resolution change notification, have to be
+ * processed again, in the same order.
+ * Move them from the resume queue to the front of the source
+ * queue, and reinitialize for processing.
+ *
+ * First, make a copy of the resume list, so we can release
+ * the lock to be able to call go2001_prepare_gbuf() on each element.
+ */
+ INIT_LIST_HEAD(&temp_list);
+ spin_lock_irqsave(&ctx->qlock, flags);
+ list_splice_init(&ctx->src_resume_q, &temp_list);
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+ list_for_each_entry(gbuf, &temp_list, list) {
+ go2001_dbg(ctx->gdev, 3, "Requeuing buffer %p\n", gbuf);
+
+ ret = go2001_prepare_gbuf(ctx, gbuf, true);
+ if (ret)
+ break;
+ }
+
+ /*
+ * Finally, splice the lists so that the resume list is added in
+ * front of the source list.
+ */
+ spin_lock_irqsave(&ctx->qlock, flags);
+ list_splice_init(&temp_list, &ctx->src_buf_q);
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ return ret;
+}
+
+static int go2001_reqbufs_cap(struct go2001_ctx *ctx,
+ struct v4l2_requestbuffers *rb)
+{
+ struct vb2_queue *vq = &ctx->dst_vq;
+ int ret = 0;
+
+ go2001_dbg(ctx->gdev, 3, "count: %d\n", rb->count);
+
+ if (rb->count == 0)
+ return vb2_reqbufs(vq, rb);
+
+ if (!go2001_has_frame_info(ctx)) {
+ go2001_err(ctx->gdev, "No frame info available yet\n");
+ return -EINVAL;
+ }
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER) {
+ switch (ctx->state) {
+ case RES_CHANGE:
+ case PAUSED:
+ ret = go2001_move_from_resume_queue(ctx);
+ if (ret)
+ go2001_set_ctx_state(ctx, ERROR);
+ else
+ go2001_set_ctx_state(ctx, PAUSED);
+ break;
+
+ default:
+ go2001_err(ctx->gdev, "Invalid state\n");
+ return -EINVAL;
+ }
+ } else {
+ if (ctx->state == UNCOMMITTED) {
+ ret = go2001_init_codec(ctx);
+ if (ret) {
+ go2001_err(ctx->gdev, "Failed initializing codec\n");
+ return ret;
+ }
+
+ go2001_set_ctx_state(ctx, COMMITTED);
+ }
+ }
+
+ return vb2_reqbufs(vq, rb);
+}
+
+static int go2001_reqbufs(struct file *file, void *fh,
+ struct v4l2_requestbuffers *rb)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ int ret;
+
+ if (V4L2_TYPE_IS_OUTPUT(rb->type))
+ ret = go2001_reqbufs_out(ctx, rb);
+ else
+ ret = go2001_reqbufs_cap(ctx, rb);
+
+ if (ret)
+ go2001_err(ctx->gdev, "REQBUFS for type %d failed\n", rb->type);
+ else
+ go2001_dbg(ctx->gdev, 2, "Allocated %d buffers for type %d\n",
+ rb->count, rb->type);
+
+ return ret;
+}
+
+static int go2001_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ int ret;
+ int i;
+
+ go2001_trace(ctx->gdev);
+
+ if (V4L2_TYPE_IS_OUTPUT(b->type))
+ return vb2_querybuf(&ctx->src_vq, b);
+
+ /* Capture buffer */
+ ret = vb2_querybuf(&ctx->dst_vq, b);
+
+ if (V4L2_TYPE_IS_MULTIPLANAR(b->type))
+ for (i = 0; i < b->length; ++i)
+ b->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
+ else
+ b->m.offset += DST_QUEUE_OFF_BASE;
+
+ return ret;
+}
+
+static int go2001_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *vq = go2001_get_vq(ctx, b->type);
+
+ if (ctx->state == ERROR) {
+ go2001_dbg(ctx->gdev, 1, "Context %p in error state\n", ctx);
+ return -EIO;
+ }
+
+ return vb2_qbuf(vq, b);
+}
+
+static int go2001_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *vq = go2001_get_vq(ctx, b->type);
+
+ return vb2_dqbuf(vq, b, file->f_flags & O_NONBLOCK);
+}
+
+static int go2001_expbuf(struct file *file, void *fh,
+ struct v4l2_exportbuffer *e)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *vq = go2001_get_vq(ctx, e->type);
+
+ return vb2_expbuf(vq, e);
+}
+
+static int go2001_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *vq = go2001_get_vq(ctx, type);
+
+ go2001_trace(ctx->gdev);
+
+ return vb2_streamon(vq, type);
+}
+
+static int go2001_streamoff(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct vb2_queue *vq = go2001_get_vq(ctx, type);
+
+ go2001_trace(ctx->gdev);
+
+ return vb2_streamoff(vq, type);
+}
+
+static int go2001_subscribe_event(struct v4l2_fh *fh,
+ const struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+ case V4L2_EVENT_EOS:
+ return v4l2_event_subscribe(fh, sub, 2, NULL);
+
+ case V4L2_EVENT_SOURCE_CHANGE:
+ return v4l2_event_subscribe(fh, sub, 2, NULL);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int go2001_enum_framesizes(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize)
+{
+ struct go2001_ctx *ctx = fh_to_ctx(file->private_data);
+ struct v4l2_frmsize_stepwise *s = &fsize->stepwise;
+ struct go2001_fmt *fmt;
+
+ if (fsize->index != 0)
+ return -EINVAL;
+
+ fmt = go2001_find_fmt(ctx, fsize->pixel_format);
+ if (!fmt) {
+ go2001_dbg(ctx->gdev, 1, "Unsupported pixelformat %d\n",
+ fsize->pixel_format);
+ return -EINVAL;
+ }
+
+ if (fmt->type != FMT_TYPE_CODED) {
+ go2001_dbg(ctx->gdev, 1, "Only supported for coded formats\n");
+ return -EINVAL;
+ }
+
+ fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+ s->min_width = GO2001_VPX_MACROBLOCK_SIZE;
+ s->max_width = 1920;
+ s->step_width = 2;
+ s->min_height = GO2001_VPX_MACROBLOCK_SIZE;
+ s->max_height = 1088;
+ s->step_height = 2;
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops go2001_ioctl_dec_ops = {
+ .vidioc_querycap = go2001_querycap,
+
+ .vidioc_enum_fmt_vid_cap_mplane = go2001_enum_fmt_cap,
+ .vidioc_enum_fmt_vid_out_mplane = go2001_enum_fmt_out,
+
+ .vidioc_g_fmt_vid_cap_mplane = go2001_dec_g_fmt_cap,
+ .vidioc_g_fmt_vid_out_mplane = go2001_dec_g_fmt_out,
+
+ .vidioc_s_fmt_vid_cap_mplane = go2001_dec_s_fmt_cap,
+ .vidioc_s_fmt_vid_out_mplane = go2001_dec_s_fmt_out,
+
+ .vidioc_try_fmt_vid_cap_mplane = go2001_dec_try_fmt_cap,
+ .vidioc_try_fmt_vid_out_mplane = go2001_dec_try_fmt_out,
+
+ .vidioc_g_crop = go2001_dec_g_crop,
+
+ .vidioc_reqbufs = go2001_reqbufs,
+ .vidioc_querybuf = go2001_querybuf,
+ .vidioc_qbuf = go2001_qbuf,
+ .vidioc_dqbuf = go2001_dqbuf,
+ .vidioc_streamon = go2001_streamon,
+ .vidioc_streamoff = go2001_streamoff,
+ .vidioc_expbuf = go2001_expbuf,
+
+ .vidioc_enum_framesizes = go2001_enum_framesizes,
+
+ .vidioc_subscribe_event = go2001_subscribe_event,
+};
+
+static const struct v4l2_ioctl_ops go2001_ioctl_enc_ops = {
+ .vidioc_querycap = go2001_querycap,
+
+ .vidioc_enum_fmt_vid_cap_mplane = go2001_enum_fmt_cap,
+ .vidioc_enum_fmt_vid_out_mplane = go2001_enum_fmt_out,
+
+ .vidioc_g_fmt_vid_cap_mplane = go2001_enc_g_fmt_cap,
+ .vidioc_g_fmt_vid_out_mplane = go2001_enc_g_fmt_out,
+
+ .vidioc_s_fmt_vid_cap_mplane = go2001_enc_s_fmt_cap,
+ .vidioc_s_fmt_vid_out_mplane = go2001_enc_s_fmt_out,
+
+ .vidioc_try_fmt_vid_cap_mplane = go2001_enc_try_fmt_cap,
+ .vidioc_try_fmt_vid_out_mplane = go2001_enc_try_fmt_out,
+
+ .vidioc_g_crop = go2001_enc_g_crop,
+ .vidioc_s_crop = go2001_enc_s_crop,
+
+ .vidioc_s_parm = go2001_enc_s_parm,
+ .vidioc_g_parm = go2001_enc_g_parm,
+
+ .vidioc_reqbufs = go2001_reqbufs,
+ .vidioc_querybuf = go2001_querybuf,
+ .vidioc_qbuf = go2001_qbuf,
+ .vidioc_dqbuf = go2001_dqbuf,
+ .vidioc_streamon = go2001_streamon,
+ .vidioc_streamoff = go2001_streamoff,
+ .vidioc_expbuf = go2001_expbuf,
+
+ .vidioc_enum_framesizes = go2001_enum_framesizes,
+};
+
+static int go2001_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ int ret;
+ struct go2001_dev *gdev;
+ struct video_device *vdev;
+
+ dev_info(&pdev->dev, "Probing GO2001\n");
+
+ ret = pci_enable_device(pdev);
+ if (ret) {
+ go2001_err_nodev("Failed enabling device\n");
+ return ret;
+ }
+
+ ret = pci_request_regions(pdev, DRIVER_NAME);
+ if (ret) {
+ go2001_err_nodev("Failed requesting regions\n");
+ goto disable_device;
+ }
+
+ pci_set_master(pdev);
+
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+ if (!ret)
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+
+ if (ret) {
+ go2001_err_nodev("No suitable DMA available\n");
+ goto release_regions;
+ }
+
+ gdev = devm_kzalloc(&pdev->dev, sizeof(*gdev), GFP_KERNEL);
+ if (!gdev) {
+ ret = -ENOMEM;
+ goto release_regions;
+ }
+
+ gdev->pdev = pdev;
+ mutex_init(&gdev->lock);
+
+ spin_lock_init(&gdev->irqlock);
+ INIT_LIST_HEAD(&gdev->inst_list);
+ INIT_LIST_HEAD(&gdev->new_inst_list);
+ INIT_LIST_HEAD(&gdev->ctx_list);
+ init_waitqueue_head(&gdev->reply_wq);
+ init_completion(&gdev->fw_completion);
+ INIT_DELAYED_WORK(&gdev->watchdog_work, go2001_watchdog);
+
+ gdev->msg_cache = kmem_cache_create("msg_cache",
+ sizeof(struct go2001_msg), 0,
+ SLAB_HWCACHE_ALIGN, NULL);
+ if (!gdev->msg_cache) {
+ go2001_err(gdev, "Failed creating msg cache\n");
+ goto release_regions;
+ }
+
+ ret = go2001_map_iomem(gdev);
+ if (ret) {
+ go2001_err(gdev, "Failed mapping IO memory\n");
+ goto release_cache;
+ }
+
+ ret = pci_enable_msi(pdev);
+ if (ret) {
+ go2001_err(gdev, "Failed enabling MSI\n");
+ goto unmap;
+ }
+
+ ret = request_irq(pdev->irq, go2001_irq, 0, DRIVER_NAME, gdev);
+ if (ret) {
+ go2001_err(gdev, "Failed requesting IRQ\n");
+ goto disable_msi;
+ }
+
+ ret = v4l2_device_register(&pdev->dev, &gdev->v4l2_dev);
+ if (ret) {
+ go2001_err(gdev, "Failed registering V4L2 device\n");
+ goto free_irq;
+ }
+
+ vdev = &gdev->dec_vdev;
+ strlcpy(vdev->name, VDEV_NAME_DEC, sizeof(vdev->name));
+ vdev->v4l2_dev = &gdev->v4l2_dev;
+ vdev->vfl_dir = VFL_DIR_M2M;
+ vdev->fops = &go2001_fops;
+ vdev->ioctl_ops = &go2001_ioctl_dec_ops;
+ vdev->lock = &gdev->lock;
+ vdev->release = video_device_release_empty;
+
+ video_set_drvdata(vdev, gdev);
+
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ if (ret)
+ goto unregister_v4l2_device;
+
+ vdev = &gdev->enc_vdev;
+ strlcpy(vdev->name, VDEV_NAME_ENC, sizeof(vdev->name));
+ vdev->v4l2_dev = &gdev->v4l2_dev;
+ vdev->vfl_dir = VFL_DIR_M2M;
+ vdev->fops = &go2001_fops;
+ vdev->ioctl_ops = &go2001_ioctl_enc_ops;
+ vdev->lock = &gdev->lock;
+ vdev->release = video_device_release_empty;
+
+ video_set_drvdata(vdev, gdev);
+
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ if (ret)
+ goto unregister_video_device_dec;
+
+ dev_info(&pdev->dev, "GO2001 successfully initialized.\n");
+
+ return 0;
+
+unregister_video_device_dec:
+ video_unregister_device(&gdev->dec_vdev);
+unregister_v4l2_device:
+ v4l2_device_unregister(&gdev->v4l2_dev);
+free_irq:
+ free_irq(pdev->irq, gdev);
+disable_msi:
+ pci_disable_msi(pdev);
+unmap:
+ go2001_unmap_iomem(gdev);
+release_cache:
+ kmem_cache_destroy(gdev->msg_cache);
+release_regions:
+ pci_release_regions(pdev);
+disable_device:
+ pci_disable_device(pdev);
+ return ret;
+}
+
+static void go2001_remove(struct pci_dev *pdev)
+{
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
+ struct go2001_dev *gdev = container_of(v4l2_dev, struct go2001_dev,
+ v4l2_dev);
+
+ dev_info(&pdev->dev, "Removing GO2001\n");
+
+ video_unregister_device(&gdev->enc_vdev);
+ video_unregister_device(&gdev->dec_vdev);
+
+ v4l2_device_unregister(&gdev->v4l2_dev);
+
+ free_irq(pdev->irq, gdev);
+
+ pci_disable_msi(pdev);
+
+ go2001_unmap_iomem(gdev);
+
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int go2001_suspend(struct device *dev)
+{
+ int ret;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
+ unsigned long flags1, flags2;
+ struct go2001_ctx *ctx;
+ struct go2001_dev *gdev = container_of(v4l2_dev, struct go2001_dev,
+ v4l2_dev);
+
+ go2001_trace(gdev);
+
+ spin_lock_irqsave(&gdev->irqlock, flags1);
+
+ list_for_each_entry(ctx, &gdev->ctx_list, ctx_entry) {
+ spin_lock_irqsave(&ctx->qlock, flags2);
+ go2001_set_ctx_state(ctx, ERROR);
+ spin_unlock_irqrestore(&ctx->qlock, flags2);
+ }
+
+ spin_unlock_irqrestore(&gdev->irqlock, flags1);
+
+ ret = wait_event_timeout(gdev->reply_wq, gdev->msgs_in_flight == 0,
+ msecs_to_jiffies(GO2001_WATCHDOG_TIMEOUT_MS));
+ if (ret == 0)
+ go2001_err(gdev, "Timed out waiting for HW to become idle\n");
+
+ mutex_lock(&gdev->lock);
+ go2001_cancel_all_contexts(gdev);
+ mutex_unlock(&gdev->lock);
+
+ return 0;
+}
+
+static int go2001_resume(struct device *dev)
+{
+ int ret;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
+ struct go2001_dev *gdev = container_of(v4l2_dev, struct go2001_dev,
+ v4l2_dev);
+
+ go2001_trace(gdev);
+
+ mutex_lock(&gdev->lock);
+
+ ret = go2001_init(gdev);
+ if (ret) {
+ gdev->initialized = false;
+ go2001_err(gdev, "Failed resetting firmware\n");
+ }
+
+ mutex_unlock(&gdev->lock);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(go2001_pm_ops, go2001_suspend, go2001_resume);
+
+static const struct pci_device_id go2001_pci_tbl[] = {
+ { PCI_DEVICE(0x1ae0, 0x001a) },
+ {},
+};
+
+static struct pci_driver go2001_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = go2001_probe,
+ .remove = go2001_remove,
+ .id_table = go2001_pci_tbl,
+ .driver.pm = &go2001_pm_ops,
+};
+
+module_pci_driver(go2001_driver);
+
+MODULE_DESCRIPTION("GO2001 PCI-E codec driver");
+MODULE_AUTHOR("Pawel Osciak <posciak@xxxxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(pci, go2001_pci_tbl);
diff --git a/drivers/media/pci/go2001/go2001_hw.c b/drivers/media/pci/go2001/go2001_hw.c
new file mode 100644
index 0000000..eec1bfc
--- /dev/null
+++ b/drivers/media/pci/go2001/go2001_hw.c
@@ -0,0 +1,1362 @@
+/*
+ * go2001 - GO2001 codec driver.
+ *
+ * Author : Pawel Osciak <posciak@xxxxxxxxxxxx>
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/delay.h>
+#include <linux/firmware.h>
+
+#include "go2001.h"
+#include "go2001_hw.h"
+#include "go2001_proto.h"
+
+static int go2001_load_fw_image(struct go2001_dev *gdev,
+ const struct firmware *fw,
+ void __iomem *ctrl_addr, size_t ctrl_size,
+ void __iomem *load_addr, size_t max_size,
+ u32 entry_addr)
+{
+ struct go2001_boot_hdr hdr;
+ u8 *chksum_ptr;
+ size_t chksum_size;
+ unsigned long flags;
+ u32 reg;
+ int i;
+
+ if (fw->size > GO2001_FW_MAX_SIZE || fw->size > max_size) {
+ go2001_err(gdev, "Firmware image too large (%zu)\n", fw->size);
+ return -EINVAL;
+ }
+
+ if (ctrl_size < GO2001_FW_HDR_OFF + sizeof(hdr) ||
+ ctrl_size < GO2001_FW_STOP + sizeof(u32)) {
+ go2001_err(gdev, "PCI BAR sizes invalid\n");
+ return -ENODEV;
+ }
+
+ hdr.signature = GO2001_FW_SIGNATURE;
+ hdr.entry_addr = entry_addr;
+ hdr.size = 16;
+ hdr.checksum = 0;
+
+ /*
+ * Calculate a checksum of the header (excluding checksum field itself).
+ */
+ chksum_ptr = (u8 *)&hdr;
+ chksum_size = offsetof(struct go2001_boot_hdr, checksum);
+ for (i = 0; i < chksum_size; ++i)
+ hdr.checksum += chksum_ptr[i];
+ hdr.checksum &= 0xff;
+
+ /* Stop the firmware via a soft interrupt. */
+ writeb('p', ctrl_addr + GO2001_FW_HDR_OFF);
+ reg = readl(ctrl_addr + GO2001_FW_STOP);
+ reg |= GO2001_FW_STOP_BIT;
+ writel(reg, ctrl_addr + GO2001_FW_STOP);
+
+ /*
+ * The next interrupt after resuming will be the "firmware loaded"
+ * interrupt, clear the flag so we handle this on next IRQ.
+ */
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ gdev->fw_loaded = false;
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ /* Copy firmware and the header */
+ memcpy_toio(load_addr, fw->data, fw->size);
+ writel(hdr.entry_addr, ctrl_addr + GO2001_FW_HDR_OFF +
+ offsetof(struct go2001_boot_hdr, entry_addr));
+ writel(hdr.size, ctrl_addr + GO2001_FW_HDR_OFF +
+ offsetof(struct go2001_boot_hdr, size));
+ writel(hdr.checksum, ctrl_addr + GO2001_FW_HDR_OFF +
+ offsetof(struct go2001_boot_hdr, checksum));
+ /*
+ * Write signature last, as this is what the device is spinning on
+ * while we are loading the firmware
+ */
+ writel(hdr.signature, ctrl_addr + GO2001_FW_HDR_OFF +
+ offsetof(struct go2001_boot_hdr, signature));
+
+ /* Clear the interrupt. */
+ reg &= ~GO2001_FW_STOP_BIT;
+ writel(reg, ctrl_addr + GO2001_FW_STOP);
+
+ return 0;
+}
+
+static int go2001_load_firmware(struct go2001_dev *gdev)
+{
+ resource_size_t ctrl_start, fw_start;
+ const struct firmware *boot_fw = NULL;
+ const struct firmware *fw = NULL;
+ void __iomem *fw_iomem;
+ void __iomem *ctrl_iomem;
+ size_t fw_iomem_size, ctrl_iomem_size;
+ int time_spent = 0;
+ int ret;
+
+ init_completion(&gdev->fw_completion);
+
+ ctrl_start = pci_resource_start(gdev->pdev, 2);
+ ctrl_iomem_size = pci_resource_len(gdev->pdev, 2);
+ if (!ctrl_start || !ctrl_iomem_size) {
+ go2001_err(gdev, "PCI BAR 2 invalid\n");
+ return -ENODEV;
+ }
+
+ fw_start = pci_resource_start(gdev->pdev, 0);
+ fw_iomem_size = pci_resource_len(gdev->pdev, 0);
+ if (!fw_start || !fw_iomem_size) {
+ go2001_err(gdev, "PCI BAR 0 invalid\n");
+ return -ENODEV;
+ }
+
+ if (ctrl_iomem_size < GO2001_BOOT_FW_OFF ||
+ fw_iomem_size < GO2001_FW_OFF) {
+ go2001_err(gdev, "Invalid PCI BAR sizes\n");
+ return -EINVAL;
+ }
+
+ ctrl_iomem = ioremap_nocache(ctrl_start, ctrl_iomem_size);
+ if (!ctrl_iomem) {
+ go2001_err(gdev, "Failed mapping PCI BAR 2\n");
+ return -ENOMEM;
+ }
+
+ fw_iomem = ioremap_nocache(fw_start, fw_iomem_size);
+ if (!fw_iomem) {
+ go2001_err(gdev, "Failed mapping PCI BAR 0\n");
+ ret = -ENOMEM;
+ goto out_unmap_ctrl_iomem;
+ }
+
+ ret = request_firmware(&boot_fw, GO2001_BOOT_FW_NAME, &gdev->pdev->dev);
+ if (ret) {
+ go2001_err(gdev, "Unable to open firmware %s\n",
+ GO2001_BOOT_FW_NAME);
+ goto out_unmap_fw_iomem;
+ }
+
+ ret = request_firmware(&fw, GO2001_FW_NAME, &gdev->pdev->dev);
+ if (ret) {
+ go2001_err(gdev, "Unable to open firmware %s\n",
+ GO2001_FW_NAME);
+ goto out_release_boot_fw;
+ }
+
+ ret = go2001_load_fw_image(gdev, boot_fw,
+ ctrl_iomem, ctrl_iomem_size,
+ ctrl_iomem + GO2001_BOOT_FW_OFF,
+ ctrl_iomem_size - GO2001_BOOT_FW_OFF,
+ GO2001_BOOT_FW_ENTRY_BASE + GO2001_BOOT_FW_OFF);
+ if (ret) {
+ go2001_err(gdev, "Failed loading firmware %s\n",
+ GO2001_BOOT_FW_NAME);
+ goto out_release_fw;
+ }
+
+ /*
+ * Boot firmware will change GO2001_FW_SIGNATURE to
+ * GO2001_FW_DONE_SIGNATURE when done.
+ */
+ while (readl(ctrl_iomem + GO2001_FW_HDR_OFF) !=
+ GO2001_FW_DONE_SIGNATURE &&
+ time_spent < GO2001_REPLY_TIMEOUT_MS) {
+ mdelay(100);
+ time_spent += 100;
+ }
+
+ if (time_spent >= GO2001_REPLY_TIMEOUT_MS) {
+ go2001_err(gdev, "Timed out waiting for firmware to start\n");
+ ret = -ENODEV;
+ goto out_release_fw;
+ }
+
+ go2001_dbg(gdev, 1, "Firmware %s loaded\n", GO2001_BOOT_FW_NAME);
+
+ ret = go2001_load_fw_image(gdev, fw, ctrl_iomem, ctrl_iomem_size,
+ fw_iomem + GO2001_FW_OFF,
+ fw_iomem_size - GO2001_FW_OFF,
+ GO2001_FW_ENTRY_BASE + GO2001_FW_OFF);
+ if (ret) {
+ go2001_err(gdev, "Failed loading firmware %s\n",
+ GO2001_FW_NAME);
+ goto out_release_fw;
+ }
+
+ if (wait_for_completion_timeout(&gdev->fw_completion,
+ msecs_to_jiffies(GO2001_REPLY_TIMEOUT_MS)) == 0) {
+ go2001_err(gdev, "Timed out waiting for firmware\n");
+ ret = -ENODEV;
+ goto out_release_fw;
+ }
+
+ go2001_dbg(gdev, 1, "Firmware %s loaded\n", GO2001_FW_NAME);
+
+out_release_fw:
+ release_firmware(fw);
+out_release_boot_fw:
+ release_firmware(boot_fw);
+out_unmap_fw_iomem:
+ iounmap(fw_iomem);
+out_unmap_ctrl_iomem:
+ iounmap(ctrl_iomem);
+
+ return ret;
+}
+
+int go2001_map_iomem(struct go2001_dev *gdev)
+{
+ resource_size_t start = pci_resource_start(gdev->pdev, 0);
+ resource_size_t len = pci_resource_len(gdev->pdev, 0);
+
+ if (!start || !len)
+ return -ENODEV;
+
+ if (len < GO2001_MSG_RING_MEM_OFFSET + GO2001_MSG_RING_MEM_SIZE)
+ return -ENODEV;
+
+ gdev->iomem_size = GO2001_MSG_RING_MEM_SIZE;
+ gdev->iomem = ioremap(start + GO2001_MSG_RING_MEM_OFFSET,
+ gdev->iomem_size);
+ if (!gdev->iomem)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void go2001_unmap_iomem(struct go2001_dev *gdev)
+{
+ iounmap(gdev->iomem);
+}
+
+void go2001_init_hw_inst(struct go2001_hw_inst *inst, u32 inst_id)
+{
+ inst->session_id = inst_id;
+ inst->sequence_id = 0;
+ inst->last_reply_seq_id = 0;
+ INIT_LIST_HEAD(&inst->pending_list);
+ INIT_LIST_HEAD(&inst->inst_entry);
+}
+
+static void go2001_release_hw_inst(struct go2001_dev *gdev,
+ struct go2001_hw_inst *inst)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ go2001_cancel_hw_inst_locked(gdev, inst);
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+}
+
+static int go2001_init_ring(struct go2001_dev *gdev,
+ struct go2001_msg_ring *ring,
+ off_t ring_desc_offset)
+{
+ struct go2001_msg_ring_desc *desc = &ring->desc;
+
+ spin_lock_init(&ring->lock);
+
+ ring->desc_iomem = gdev->iomem + ring_desc_offset;
+ memcpy_fromio(desc, ring->desc_iomem, sizeof(*desc));
+ go2001_dbg(gdev, 1, "Ring %p: [0x%x-0x%x], msg size: %d, capacity: %d, wr_off: 0x%x, rd_off: 0x%x\n",
+ ring->desc_iomem, desc->start_off, desc->end_off,
+ desc->msg_size,
+ (desc->end_off - desc->start_off) / desc->msg_size,
+ desc->wr_off, desc->rd_off);
+
+ if (WARN_ON(desc->msg_size == 0 || desc->end_off <= desc->start_off ||
+ desc->end_off > gdev->iomem_size ||
+ desc->wr_off != desc->rd_off)) {
+ go2001_err(gdev, "Invalid ring descriptor\n");
+ return -EIO;
+ }
+
+ if (WARN_ON(desc->msg_size > sizeof(struct go2001_msg))) {
+ go2001_err(gdev, "Ring message size over limit\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int go2001_init_messaging(struct go2001_dev *gdev)
+{
+ int ret = 0;
+
+ go2001_dbg(gdev, 1, "Initializing TX ring\n");
+
+ ret = go2001_init_ring(gdev, &gdev->tx_ring,
+ GO2001_TX_RING_DESC_OFFSET);
+ if (ret)
+ return ret;
+
+ go2001_dbg(gdev, 1, "Initializing RX ring\n");
+
+ ret = go2001_init_ring(gdev, &gdev->rx_ring,
+ GO2001_RX_RING_DESC_OFFSET);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void go2001_update_ring_locked(struct go2001_msg_ring *r)
+{
+ r->desc.wr_off = ioread32(r->desc_iomem +
+ offsetof(struct go2001_msg_ring_desc, wr_off));
+ r->desc.rd_off = ioread32(r->desc_iomem +
+ offsetof(struct go2001_msg_ring_desc, rd_off));
+}
+
+static inline bool go2001_ring_is_full_locked(struct go2001_msg_ring *r)
+{
+ u32 next_off;
+
+ go2001_update_ring_locked(r);
+ next_off = r->desc.wr_off + r->desc.msg_size;
+ return (next_off == r->desc.rd_off ||
+ (r->desc.rd_off == r->desc.start_off &&
+ next_off >= r->desc.end_off));
+}
+
+static inline bool go2001_ring_is_empty_locked(struct go2001_msg_ring *r)
+{
+ go2001_update_ring_locked(r);
+ return r->desc.rd_off == r->desc.wr_off;
+}
+
+static struct go2001_msg *prepare_msg(struct go2001_dev *gdev,
+ enum go2001_msg_type type,
+ size_t param_size)
+{
+ struct go2001_msg *msg;
+ struct go2001_msg_hdr *hdr;
+
+ msg = kmem_cache_zalloc(gdev->msg_cache, GFP_KERNEL);
+ if (!msg) {
+ go2001_err(gdev, "Failed allocating msg\n");
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&msg->list_entry);
+ hdr = msg_to_hdr(msg);
+ hdr->type = type;
+ hdr->size = go2001_calc_payload_size(param_size);
+
+ return msg;
+}
+
+static void free_msg(struct go2001_dev *gdev, struct go2001_msg *msg)
+{
+ WARN_ON(!list_empty(&msg->list_entry));
+ kmem_cache_free(gdev->msg_cache, msg);
+}
+
+static struct go2001_hw_inst *get_next_ready_hw_inst(struct go2001_dev *gdev)
+{
+ struct go2001_hw_inst *hw_inst;
+
+ go2001_trace(gdev);
+
+ if (list_empty(&gdev->inst_list))
+ return NULL;
+
+ if (!gdev->curr_hw_inst) {
+ gdev->curr_hw_inst = list_first_entry(&gdev->inst_list,
+ struct go2001_hw_inst, inst_entry);
+ }
+
+ hw_inst = gdev->curr_hw_inst;
+ list_for_each_entry_continue(hw_inst, &gdev->inst_list, inst_entry) {
+ if (!list_empty(&hw_inst->pending_list))
+ return hw_inst;
+ }
+
+ list_for_each_entry(hw_inst, &gdev->inst_list, inst_entry) {
+ if (!list_empty(&hw_inst->pending_list))
+ return hw_inst;
+
+ if (hw_inst == gdev->curr_hw_inst)
+ break;
+ }
+
+ return NULL;
+}
+
+static struct go2001_msg *go2001_get_pending_msg_locked(struct go2001_dev *gdev)
+{
+ struct go2001_hw_inst *hw_inst;
+ struct go2001_msg_hdr *hdr;
+ struct go2001_msg *msg;
+
+ assert_spin_locked(&gdev->irqlock);
+
+ hw_inst = get_next_ready_hw_inst(gdev);
+ if (!hw_inst) {
+ go2001_dbg(gdev, 5, "No pending messages\n");
+ return NULL;
+ }
+
+ gdev->curr_hw_inst = hw_inst;
+ msg = list_first_entry(&hw_inst->pending_list, struct go2001_msg,
+ list_entry);
+ hdr = msg_to_hdr(msg);
+ go2001_dbg(gdev, 5, "Found pending message for instance %d, seqid %d\n",
+ hw_inst->session_id, hdr->sequence_id);
+
+ list_del_init(&msg->list_entry);
+
+ return msg;
+}
+
+static void go2001_drop_pending_for_hw_inst_locked(struct go2001_dev *gdev,
+ struct go2001_hw_inst *hw_inst)
+{
+ struct go2001_msg *msg, *tmp_msg;
+
+ assert_spin_locked(&gdev->irqlock);
+
+ list_for_each_entry_safe(msg, tmp_msg, &hw_inst->pending_list,
+ list_entry) {
+ list_del_init(&msg->list_entry);
+ free_msg(gdev, msg);
+ }
+
+ INIT_LIST_HEAD(&hw_inst->pending_list);
+}
+
+void go2001_cancel_hw_inst_locked(struct go2001_dev *gdev,
+ struct go2001_hw_inst *hw_inst)
+{
+ assert_spin_locked(&gdev->irqlock);
+
+ WARN_ON(!list_empty(&hw_inst->inst_entry) &&
+ !list_empty(&hw_inst->pending_list));
+
+ go2001_drop_pending_for_hw_inst_locked(gdev, hw_inst);
+ list_del_init(&hw_inst->inst_entry);
+ if (gdev->curr_hw_inst == hw_inst)
+ gdev->curr_hw_inst = NULL;
+}
+
+void go2001_cancel_all_hw_inst_locked(struct go2001_dev *gdev)
+{
+ struct go2001_hw_inst *hw_inst;
+
+ assert_spin_locked(&gdev->irqlock);
+
+ list_for_each_entry(hw_inst, &gdev->inst_list, inst_entry)
+ go2001_drop_pending_for_hw_inst_locked(gdev, hw_inst);
+ INIT_LIST_HEAD(&gdev->inst_list);
+
+ list_for_each_entry(hw_inst, &gdev->new_inst_list, inst_entry)
+ go2001_drop_pending_for_hw_inst_locked(gdev, hw_inst);
+ INIT_LIST_HEAD(&gdev->new_inst_list);
+
+ gdev->curr_hw_inst = NULL;
+}
+
+static void go2001_print_msg(struct go2001_dev *gdev, struct go2001_msg *msg,
+ const char *prefix)
+{
+ struct go2001_msg_hdr *hdr = msg_to_hdr(msg);
+
+ go2001_dbg(gdev, 4, "%s: MSG: [%d/%d], type=0x%x, size=%d, status=0x%x\n",
+ prefix, hdr->session_id, hdr->sequence_id, hdr->type,
+ hdr->size, hdr->status);
+
+ if (go2001_debug_level >= 5)
+ print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_NONE, 16, 1,
+ msg_to_param(msg),
+ hdr->size - sizeof(struct go2001_msg_hdr),
+ false);
+}
+
+static void go2001_print_mmap_list(struct go2001_dev *gdev,
+ struct go2001_dma_desc *dma_desc)
+{
+ struct go2001_mmap_list_entry *mmap_list = dma_desc->mmap_list;
+ int i;
+
+ for (i = 0; i < dma_desc->num_entries; ++i)
+ go2001_dbg(gdev, 4, "entry %02d: addr: 0x%08llx, size: %d\n",
+ i, mmap_list[i].dma_addr, mmap_list[i].size);
+}
+
+static void go2001_send_pending_locked(struct go2001_dev *gdev)
+{
+ struct go2001_msg_ring *r = &gdev->tx_ring;
+ struct go2001_msg *msg;
+ struct go2001_msg_hdr *hdr;
+ unsigned long flags;
+ struct go2001_msg_ring_desc *desc = &r->desc;
+
+ spin_lock_irqsave(&r->lock, flags);
+
+ while (1) {
+ if (go2001_ring_is_full_locked(r)) {
+ go2001_dbg(gdev, 5, "TX ring full, not sending.\n");
+ break;
+ }
+
+ msg = go2001_get_pending_msg_locked(gdev);
+ if (!msg)
+ break;
+
+ hdr = msg_to_hdr(msg);
+
+ memcpy_toio(r->desc_iomem + desc->wr_off, hdr, hdr->size);
+ go2001_print_msg(gdev, msg, "TX: ");
+ desc->wr_off += desc->msg_size;
+ if (desc->wr_off >= desc->end_off)
+ desc->wr_off = desc->start_off;
+
+ iowrite32(desc->wr_off, r->desc_iomem
+ + offsetof(struct go2001_msg_ring_desc, wr_off));
+
+ if (gdev->msgs_in_flight == 0)
+ schedule_delayed_work(&gdev->watchdog_work,
+ msecs_to_jiffies(GO2001_WATCHDOG_TIMEOUT_MS));
+
+ ++gdev->msgs_in_flight;
+
+ go2001_dbg(gdev, 5, "Messages in flight: %d\n",
+ gdev->msgs_in_flight);
+
+ free_msg(gdev, msg);
+ }
+
+ spin_unlock_irqrestore(&r->lock, flags);
+}
+
+void go2001_send_pending(struct go2001_dev *gdev)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ go2001_send_pending_locked(gdev);
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+}
+
+/*
+ * NOTE: msg must not be used by the caller after this functions returns;
+ * either we'll free it after sending it to HW, or it will be cleaned up by the
+ * watchdog on timeout (if still on the pending_list at that time).
+ */
+static u32 go2001_queue_msg_locked(struct go2001_dev *gdev,
+ struct go2001_hw_inst *hw_inst,
+ struct go2001_msg *msg)
+{
+ struct go2001_msg_hdr *hdr = msg_to_hdr(msg);
+ u32 seqid;
+
+ assert_spin_locked(&gdev->irqlock);
+
+ hdr->session_id = hw_inst->session_id;
+ seqid = ++hw_inst->sequence_id;
+ hdr->sequence_id = seqid;
+ list_add_tail(&msg->list_entry, &hw_inst->pending_list);
+
+ return seqid;
+}
+
+static u32 go2001_queue_msg(struct go2001_ctx *ctx, struct go2001_msg *msg)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ unsigned long flags;
+ u32 type = msg_to_hdr(msg)->type;
+ u32 seqid;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ seqid = go2001_queue_msg_locked(gdev, &ctx->hw_inst, msg);
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+ go2001_dbg(gdev, 5, "Queued message type 0x%x for inst %d, seqid: %d\n",
+ type, ctx->hw_inst.session_id, seqid);
+
+ /* The message is freed after being sent to hardware or on error. */
+ go2001_send_pending(gdev);
+
+ return seqid;
+}
+
+static struct go2001_hw_inst *find_hw_inst_by_id_locked(struct go2001_dev *gdev,
+ u32 session_id)
+{
+ struct go2001_hw_inst *hw_inst;
+
+ list_for_each_entry(hw_inst, &gdev->inst_list, inst_entry)
+ if (hw_inst->session_id == session_id)
+ return hw_inst;
+
+ return NULL;
+}
+
+static bool go2001_sequence_passed(struct go2001_dev *gdev,
+ u32 session_id, u32 seq_id)
+{
+ struct go2001_hw_inst *hw_inst;
+ unsigned long flags;
+ bool ret = true;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+
+ hw_inst = find_hw_inst_by_id_locked(gdev, session_id);
+ if (hw_inst)
+ ret = (hw_inst->last_reply_seq_id >= seq_id);
+
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ return ret;
+}
+
+static int go2001_wait_for_reply(struct go2001_dev *gdev, u32 session_id,
+ u32 sequence_id)
+{
+ int ret;
+
+ ret = wait_event_timeout(gdev->reply_wq,
+ go2001_sequence_passed(gdev, session_id, sequence_id),
+ msecs_to_jiffies(GO2001_REPLY_TIMEOUT_MS));
+ if (ret == 0) {
+ go2001_err(gdev, "Timeout waiting for reply to %d/%d\n",
+ session_id, sequence_id);
+ return -ETIMEDOUT;
+ }
+
+ go2001_dbg(gdev, 5, "Finished waiting for %d/%d\n",
+ session_id, sequence_id);
+
+ return 0;
+}
+
+static inline bool go2001_ctx_idle(struct go2001_ctx *ctx)
+{
+ unsigned long flags1, flags2;
+ bool idle;
+
+ spin_lock_irqsave(&ctx->gdev->irqlock, flags1);
+ spin_lock_irqsave(&ctx->qlock, flags2);
+ idle = list_empty(&ctx->hw_inst.inst_entry) ||
+ (list_empty(&ctx->hw_inst.pending_list) && !ctx->job.src_buf);
+ spin_unlock_irqrestore(&ctx->qlock, flags2);
+ spin_unlock_irqrestore(&ctx->gdev->irqlock, flags1);
+
+ return idle;
+}
+
+void go2001_wait_for_ctx_done(struct go2001_ctx *ctx)
+{
+ /* No timeout, the watchdog will wake us up if needed. */
+ wait_event(ctx->gdev->reply_wq, go2001_ctx_idle(ctx));
+ go2001_wait_for_reply(ctx->gdev, ctx->hw_inst.session_id,
+ ctx->hw_inst.sequence_id);
+}
+
+static int go2001_queue_msg_and_wait(struct go2001_ctx *ctx,
+ struct go2001_msg *msg)
+{
+ u32 session_id = ctx->hw_inst.session_id;
+ u32 seqid;
+
+ /* msg becomes invalid after the call to go2001_queue_msg. */
+ seqid = go2001_queue_msg(ctx, msg);
+
+ return go2001_wait_for_reply(ctx->gdev, session_id, seqid);
+}
+
+static int go2001_queue_ctrl_msg_and_wait(struct go2001_dev *gdev,
+ struct go2001_msg *msg)
+{
+ unsigned long flags;
+ u32 seqid;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+ seqid = go2001_queue_msg_locked(gdev, &gdev->ctrl_inst, msg);
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ go2001_dbg(gdev, 5, "Queued control msg seqid: %d\n", seqid);
+
+ go2001_send_pending(gdev);
+
+ return go2001_wait_for_reply(gdev, 0, seqid);
+}
+
+static int go2001_queue_init_msg_and_wait(struct go2001_ctx *ctx,
+ struct go2001_msg *msg)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ unsigned long flags;
+ u32 seqid;
+
+ spin_lock_irqsave(&gdev->irqlock, flags);
+
+ seqid = go2001_queue_msg_locked(gdev, &gdev->ctrl_inst, msg);
+ if (ctx && !WARN_ON(!list_empty(&ctx->hw_inst.inst_entry))) {
+ go2001_dbg(gdev, 5, "New inst seq %d\n", seqid);
+ list_add_tail(&ctx->hw_inst.inst_entry, &gdev->new_inst_list);
+ /* Will use sequence_id to check if we got the
+ * reply for the correct new ctx in IRQ.
+ */
+ ctx->hw_inst.sequence_id = seqid;
+ }
+
+ spin_unlock_irqrestore(&gdev->irqlock, flags);
+
+ go2001_send_pending(gdev);
+
+ return go2001_wait_for_reply(gdev, 0, seqid);
+}
+
+int go2001_get_reply(struct go2001_dev *gdev, struct go2001_msg *msg)
+{
+ struct go2001_msg_ring *r = &gdev->rx_ring;
+ struct go2001_msg_hdr *hdr = msg_to_hdr(msg);
+ struct go2001_msg_ring_desc *desc = &r->desc;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&r->lock, flags);
+
+ if (go2001_ring_is_empty_locked(r)) {
+ go2001_dbg(gdev, 5, "Ring empty\n");
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ memcpy_fromio(hdr, r->desc_iomem + desc->rd_off, desc->msg_size);
+ go2001_print_msg(gdev, msg, "RX: ");
+
+ desc->rd_off += desc->msg_size;
+ if (desc->rd_off >= desc->end_off)
+ desc->rd_off = desc->start_off;
+
+ iowrite32(desc->rd_off, r->desc_iomem +
+ offsetof(struct go2001_msg_ring_desc, rd_off));
+
+out:
+ spin_unlock_irqrestore(&r->lock, flags);
+ return ret;
+}
+
+static int go2001_init_decoder(struct go2001_ctx *ctx)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_init_decoder_param *param;
+ struct go2001_msg *msg;
+ unsigned long flags;
+ int ret;
+
+ if (!ctx->src_fmt) {
+ go2001_err(gdev, "Input format not set\n");
+ return -EINVAL;
+ }
+
+ go2001_dbg(gdev, 2, "Initializing decoder for format %s\n",
+ ctx->src_fmt->desc);
+
+ msg = prepare_msg(gdev, GO2001_VM_INIT_DECODER, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+
+ param = msg_to_param(msg);
+ param->coded_fmt = ctx->src_fmt->hw_format;
+ param->concealment = 0;
+
+ ret = go2001_queue_init_msg_and_wait(ctx, msg);
+ spin_lock_irqsave(&ctx->qlock, flags);
+ if (ret || ctx->state == ERROR) {
+ go2001_err(gdev, "Failed initializing decoder\n");
+ ret = ret ? ret : -EIO;
+ }
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ return ret;
+}
+
+static int go2001_s_ctrl(struct go2001_ctx *ctx, enum go2001_hw_ctrl_type type,
+ union go2001_hw_ctrl *ctrl)
+{
+ struct go2001_set_ctrl_param *param;
+ struct go2001_msg *msg;
+
+ msg = prepare_msg(ctx->gdev, GO2001_VM_SET_CTRL, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+
+ param = msg_to_param(msg);
+ param->type = type;
+
+ memcpy(&param->ctrl, ctrl, sizeof(*ctrl));
+
+ return go2001_queue_msg_and_wait(ctx, msg);
+}
+
+static int go2001_set_def_encoder_ctrls(struct go2001_ctx *ctx)
+{
+ union go2001_hw_ctrl hw_ctrl;
+ struct go2001_enc_coding_ctrl *ctrl = &hw_ctrl.coding_ctrl;
+
+ memset(&hw_ctrl, 0, sizeof(hw_ctrl));
+ ctrl->interp_filter_type = GO2001_CODING_CTRL_INTERP_FILTER_BICUBIC;
+ ctrl->deblock_filter_type = GO2001_CODING_CTRL_DEBLOCK_FILTER_NORMAL;
+ ctrl->deblock_filter_level = 64;
+ ctrl->deblock_filter_sharpness = 8;
+ ctrl->num_dct_parts = 1;
+ ctrl->error_resilient = 1;
+ ctrl->split_mv = GO2001_CODING_CTRL_MV_ADAPTIVE;
+ ctrl->quarter_pixel_mv = GO2001_CODING_CTRL_MV_ADAPTIVE;
+ ctrl->deadzone_enabled = 1;
+ ctrl->max_num_passes = 1;
+ ctrl->quality_metric = GO2001_CODING_CTRL_QM_SSIM;
+
+ return go2001_s_ctrl(ctx, GO2001_HW_CTRL_TYPE_CODING, &hw_ctrl);
+}
+
+static int go2001_init_encoder(struct go2001_ctx *ctx)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_init_encoder_param *param;
+ struct go2001_frame_info *finfo;
+ struct go2001_msg *msg;
+ int ret;
+
+ if (WARN_ON(!ctx->src_fmt || !ctx->dst_fmt ||
+ !go2001_has_frame_info(ctx))) {
+ go2001_dbg(ctx->gdev, 2, "Formats not set\n");
+ return -EINVAL;
+ }
+
+ go2001_dbg(gdev, 2, "Initializing encoder for formats %s->%s at %dx%d\n",
+ ctx->src_fmt->desc, ctx->dst_fmt->desc, ctx->finfo.width,
+ ctx->finfo.height);
+
+ msg = prepare_msg(gdev, GO2001_VM_INIT_ENCODER, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+
+ param = msg_to_param(msg);
+ finfo = &ctx->finfo;
+
+ param->session_id = 0;
+ param->num_ref_frames = ctx->enc_params.multi_ref_frame_mode ? 1 : 3;
+ param->width = finfo->width;
+ param->height = finfo->height;
+ param->orig_width = finfo->width;
+ param->orig_height = finfo->height;
+ param->framerate_num = ctx->enc_params.framerate_num;
+ param->framerate_denom = ctx->enc_params.framerate_denom;
+ param->raw_fmt = ctx->src_fmt->hw_format;
+
+ ret = go2001_queue_init_msg_and_wait(ctx, msg);
+ if (ret || ctx->state == ERROR) {
+ go2001_err(gdev, "Failed initializing encoder\n");
+ return ret ? ret : -EIO;
+ }
+
+ return go2001_set_def_encoder_ctrls(ctx);
+}
+
+void go2001_release_codec(struct go2001_ctx *ctx)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_msg *msg;
+
+ go2001_dbg(gdev, 2, "Releasing session id %d, codec state %d\n",
+ ctx->hw_inst.session_id, ctx->state);
+
+ if (ctx->hw_inst.session_id != 0) {
+ msg = prepare_msg(gdev, GO2001_VM_RELEASE, 0);
+ if (msg)
+ go2001_queue_msg_and_wait(ctx, msg);
+ }
+
+ /* Regardless of whether we sent and/or got a reply or not, clean up. */
+ go2001_release_hw_inst(gdev, &ctx->hw_inst);
+}
+
+int go2001_map_buffer(struct go2001_ctx *ctx, struct go2001_buffer *buf)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_set_mmap_param *param;
+ struct vb2_buffer *vb = &buf->vb;
+ struct go2001_dma_desc *dma_desc;
+ struct go2001_msg *msg;
+ struct go2001_mmap_list_desc *list_desc;
+ unsigned int i;
+
+ if (buf->mapped) {
+ go2001_err(gdev, "Buffer already mapped\n");
+ return -EINVAL;
+ }
+
+ if (vb->num_planes > GO2001_MMAP_MAX_ENTRIES) {
+ go2001_err(gdev, "Too many planes to map\n");
+ return -EIO;
+ }
+
+ msg = prepare_msg(gdev, GO2001_VM_SET_MMAP, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+ param = msg_to_param(msg);
+ param->dir = V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type) ?
+ GO2001_VSM_DIR_IN : GO2001_VSM_DIR_OUT;
+ param->count = vb->num_planes;
+ for (i = 0; i < vb->num_planes; ++i) {
+ dma_desc = &buf->dma_desc[i];
+ list_desc = &param->mmap_list_desc[i];
+
+ dma_desc->map_addr = dma_desc->mmap_list[0].dma_addr;
+
+ list_desc->first_entry_dma_addr = dma_desc->map_addr;
+ list_desc->entry_count = dma_desc->num_entries;
+ list_desc->mmap_list_addr = dma_desc->dma_addr;
+
+ go2001_dbg(gdev, 4, "Mapping plane %u: 0x%08llx, chunks: %d in HW\n",
+ i, dma_desc->map_addr, dma_desc->num_entries);
+ go2001_print_mmap_list(gdev, dma_desc);
+ }
+
+ go2001_queue_msg(ctx, msg);
+
+ buf->mapped = true;
+
+ return 0;
+}
+
+void go2001_unmap_buffer(struct go2001_ctx *ctx, struct go2001_buffer *buf)
+{
+ struct go2001_release_mmap_param *param;
+ struct go2001_dev *gdev = ctx->gdev;
+ struct vb2_buffer *vb = &buf->vb;
+ struct go2001_msg *msg;
+ unsigned int i;
+
+ if (!buf->mapped) {
+ go2001_dbg(gdev, 1, "Buffer not mapped\n");
+ return;
+ }
+
+ if (vb->num_planes > GO2001_MMAP_MAX_ENTRIES) {
+ go2001_dbg(gdev, 1, "Too many planes\n");
+ return;
+ }
+
+ go2001_dbg(gdev, 3, "Unmapping buffer %p from HW\n", buf);
+
+ msg = prepare_msg(gdev, GO2001_VM_RELEASE_MMAP, sizeof(*param));
+ if (!msg)
+ return;
+
+ param = msg_to_param(msg);
+ param->dir = V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type) ?
+ GO2001_VSM_DIR_IN :
+ GO2001_VSM_DIR_OUT;
+ param->count = vb->num_planes;
+ for (i = 0; i < vb->num_planes; ++i) {
+ param->addr[i] = buf->dma_desc[i].map_addr;
+ go2001_dbg(gdev, 4, "Unmapping plane %u, 0x%08llx from HW\n",
+ i, buf->dma_desc[i].map_addr);
+ }
+
+ go2001_queue_msg_and_wait(ctx, msg);
+
+ buf->mapped = false;
+}
+
+int go2001_unmap_buffers(struct go2001_ctx *ctx, bool unmap_src, bool unmap_dst)
+{
+ struct go2001_release_mmap_param *param;
+ struct go2001_msg *msg;
+
+ if (WARN_ON(!unmap_src && !unmap_dst))
+ return 0;
+
+ msg = prepare_msg(ctx->gdev, GO2001_VM_RELEASE_MMAP, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+ param = msg_to_param(msg);
+ param->dir |= (unmap_src ? GO2001_VSM_DIR_IN : 0);
+ param->dir |= (unmap_dst ? GO2001_VSM_DIR_OUT : 0);
+
+ return go2001_queue_msg_and_wait(ctx, msg);
+}
+
+static int go2001_build_dec_msg(struct go2001_ctx *ctx, struct go2001_msg *msg,
+ struct go2001_buffer *src_buf,
+ struct go2001_buffer *dst_buf)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_empty_buffer_dec_param *param;
+ int i;
+
+ assert_spin_locked(&ctx->qlock);
+
+ if (!src_buf->mapped || (dst_buf && !dst_buf->mapped)) {
+ go2001_err(gdev, "Buffer(s) not mapped!\n");
+ return -EINVAL;
+ }
+
+ param = msg_to_param(msg);
+
+ param->in_addr = src_buf->dma_desc[0].map_addr;
+ param->payload_size = vb2_get_plane_payload(&src_buf->vb, 0);
+ if (dst_buf) {
+ if (WARN_ON(dst_buf->vb.num_planes >
+ ARRAY_SIZE(param->out_addr)))
+ return -EINVAL;
+
+ for (i = 0; i < dst_buf->vb.num_planes; ++i) {
+ param->out_addr[i] = dst_buf->dma_desc[i].map_addr;
+ WARN_ON(!IS_ALIGNED(param->out_addr[i], 16));
+ }
+
+ if (!ctx->dst_fmt) {
+ go2001_err(gdev, "Destination format not set\n");
+ return -EINVAL;
+ }
+ param->raw_fmt = ctx->dst_fmt->hw_format;
+ }
+
+ param->flags = ctx->need_resume ?
+ G02001_EMPTY_BUF_DEC_FLAG_RES_CHANGE_DONE :
+ 0;
+ ctx->need_resume = false;
+
+ return 0;
+}
+
+static void go2001_update_enc_params(struct go2001_ctx *ctx,
+ struct go2001_runtime_enc_params *rt_enc_params) {
+ unsigned long *changed_mask;
+ struct go2001_enc_params *new_params;
+
+ if (!rt_enc_params->changed_mask)
+ return;
+
+ changed_mask = rt_enc_params->changed_mask;
+ new_params = &rt_enc_params->enc_params;
+
+ if (test_and_clear_bit(GO2001_BITRATE_CHANGE, changed_mask))
+ ctx->enc_params.bitrate = new_params->bitrate;
+
+ if (test_and_clear_bit(GO2001_FRAMERATE_CHANGE, changed_mask)) {
+ ctx->enc_params.framerate_num = new_params->framerate_num;
+ ctx->enc_params.framerate_denom = new_params->framerate_denom;
+ }
+
+ if (test_and_clear_bit(GO2001_KEYFRAME_REQUESTED, changed_mask))
+ ctx->enc_params.request_keyframe = new_params->request_keyframe;
+}
+
+static int go2001_build_enc_msg(struct go2001_ctx *ctx, struct go2001_msg *msg,
+ struct go2001_buffer *src_buf,
+ struct go2001_buffer *dst_buf)
+{
+ struct go2001_empty_buffer_enc_param *param;
+ struct go2001_dev *gdev = ctx->gdev;
+ int i;
+
+ if (WARN_ON(!src_buf || !dst_buf))
+ return -EINVAL;
+
+ assert_spin_locked(&ctx->qlock);
+
+ if (!src_buf->mapped || !dst_buf->mapped) {
+ go2001_err(gdev, "Buffer(s) not mapped!\n");
+ return -EINVAL;
+ }
+
+ param = msg_to_param(msg);
+
+ if (WARN_ON(src_buf->vb.num_planes > ARRAY_SIZE(param->in_addr)))
+ return -EINVAL;
+
+ for (i = 0; i < src_buf->vb.num_planes; ++i) {
+ param->in_addr[i] = src_buf->dma_desc[i].map_addr;
+ WARN_ON(!IS_ALIGNED(param->in_addr[i], 16));
+ }
+ param->out_addr = dst_buf->dma_desc[0].map_addr;
+ param->out_size = vb2_plane_size(&dst_buf->vb, 0);
+
+ go2001_update_enc_params(ctx, &src_buf->rt_enc_params);
+ if (ctx->enc_params.request_keyframe) {
+ param->frame_type = GO2001_EMPTY_BUF_ENC_FRAME_KEYFRAME;
+ ctx->enc_params.frames_since_intra = 0;
+ ctx->enc_params.request_keyframe = false;
+ } else {
+ param->frame_type = GO2001_EMPTY_BUF_ENC_FRAME_PRED;
+ }
+
+ if (WARN_ON(ctx->enc_params.framerate_num == 0))
+ return -EINVAL;
+
+ param->time_increment = GO2001_MAX_FPS / ctx->enc_params.framerate_num;
+ param->bits_per_sec = ctx->enc_params.bitrate;
+ ctx->enc_params.bitrate = 0;
+
+ if (!ctx->enc_params.multi_ref_frame_mode ||
+ ctx->enc_params.frames_since_intra % 4 == 0) {
+ /* Frame controls for temporal layer 0. */
+ param->ipf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE_AND_REFRESH;
+ param->grf_frame_ctrl = GO2001_FRM_CTRL_NO_REFRESH;
+ param->arf_frame_ctrl = GO2001_FRM_CTRL_NO_REFRESH;
+ } else if (ctx->enc_params.frames_since_intra % 2 == 0) {
+ /* Frame controls for temporal layer 1. */
+ param->ipf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE;
+ param->grf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE_AND_REFRESH;
+ param->arf_frame_ctrl = GO2001_FRM_CTRL_NO_REFRESH;
+ } else {
+ /* Frame controls for temporal layer 2. */
+ param->ipf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE;
+ param->grf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE;
+ param->arf_frame_ctrl = GO2001_FRM_CTRL_REFERENCE_AND_REFRESH;
+ }
+ ctx->enc_params.frames_since_intra++;
+
+ return 0;
+}
+
+static void go2001_flush(struct go2001_ctx *ctx, struct go2001_buffer *src_buf)
+{
+ assert_spin_locked(&ctx->qlock);
+
+ go2001_dbg(ctx->gdev, 4, "Flushing at src_buf ts=%llu\n",
+ src_buf->vb.timestamp);
+
+ /*
+ * Since VPX has no frame reordering and buffers are returned as
+ * soon as they are decoded, there is no need trigger anything on the
+ * destination queue. Just return the flush buffer to userspace.
+ */
+ list_del(&src_buf->list);
+ vb2_buffer_done(&src_buf->vb, VB2_BUF_STATE_DONE);
+}
+
+int go2001_prepare_gbuf(struct go2001_ctx *ctx, struct go2001_buffer *gbuf,
+ bool is_src)
+{
+ struct go2001_msg *msg;
+ size_t size;
+
+ if (!is_src)
+ return 0;
+
+ if (WARN_ON(gbuf->msg))
+ return -EINVAL;
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER)
+ size = sizeof(struct go2001_empty_buffer_dec_param);
+ else
+ size = sizeof(struct go2001_empty_buffer_enc_param);
+
+ msg = prepare_msg(ctx->gdev, GO2001_VM_EMPTY_BUFFER, size);
+ if (!msg)
+ return -ENOMEM;
+
+ gbuf->msg = msg;
+ return 0;
+}
+
+void go2001_finish_gbuf(struct go2001_ctx *ctx, struct go2001_buffer *gbuf)
+{
+ if (gbuf->msg) {
+ free_msg(ctx->gdev, gbuf->msg);
+ gbuf->msg = NULL;
+ }
+}
+
+int go2001_schedule_frames(struct go2001_ctx *ctx)
+{
+ struct go2001_dev *gdev = ctx->gdev;
+ struct go2001_job *job = &ctx->job;
+ struct go2001_msg *msg = NULL;
+ struct go2001_buffer *src_buf;
+ struct go2001_buffer *dst_buf;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&ctx->qlock, flags);
+ if (job->src_buf) {
+ go2001_dbg(gdev, 5, "Job already running\n");
+ goto out;
+ }
+
+ if (WARN_ON(job->dst_buf)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ go2001_dbg(gdev, 5, "State: %d\n", ctx->state);
+again:
+ src_buf = NULL;
+ dst_buf = NULL;
+
+ switch (ctx->state) {
+ case NEED_HEADER_INFO:
+ if (WARN_ON(ctx->codec_mode == CODEC_MODE_ENCODER)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!list_empty(&ctx->src_buf_q)) {
+ src_buf = list_first_entry(&ctx->src_buf_q,
+ struct go2001_buffer, list);
+ }
+ break;
+
+ case RUNNING:
+ if (!list_empty(&ctx->src_buf_q) &&
+ !list_empty(&ctx->dst_buf_q)) {
+ src_buf = list_first_entry(&ctx->src_buf_q,
+ struct go2001_buffer, list);
+ dst_buf = list_first_entry(&ctx->dst_buf_q,
+ struct go2001_buffer, list);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (!src_buf)
+ goto out;
+
+ msg = src_buf->msg;
+ if (WARN_ON(!msg))
+ goto out;
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER) {
+ if (vb2_get_plane_payload(&src_buf->vb, 0) == 0) {
+ /* Flush buffer */
+ go2001_flush(ctx, src_buf);
+ goto again;
+ }
+
+ ret = go2001_build_dec_msg(ctx, msg, src_buf, dst_buf);
+ } else {
+ ret = go2001_build_enc_msg(ctx, msg, src_buf, dst_buf);
+ }
+ if (ret)
+ goto out;
+
+ job->src_buf = src_buf;
+ if (dst_buf)
+ job->dst_buf = dst_buf;
+
+ src_buf->msg = NULL;
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+
+ go2001_queue_msg(ctx, msg);
+ return 0;
+out:
+ if (ret) {
+ go2001_set_ctx_state(ctx, ERROR);
+ go2001_err(gdev, "Error scheduling frames\n");
+ }
+
+ spin_unlock_irqrestore(&ctx->qlock, flags);
+ return ret;
+}
+
+static int go2001_query_hw_version(struct go2001_dev *gdev)
+{
+ struct go2001_msg *msg;
+
+ msg = prepare_msg(gdev, GO2001_VM_GET_VERSION, 0);
+ if (!msg)
+ return -ENOMEM;
+
+ return go2001_queue_ctrl_msg_and_wait(gdev, msg);
+}
+
+static int go2001_set_log_level(struct go2001_dev *gdev, u32 level)
+{
+ struct go2001_set_log_level_param *param;
+ struct go2001_msg *msg;
+
+ if (level != GO2001_LOG_LEVEL_DISABLED && level > GO2001_LOG_LEVEL_MAX)
+ level = GO2001_LOG_LEVEL_MAX;
+
+ msg = prepare_msg(gdev, GO2001_VM_SET_LOG_LEVEL, sizeof(*param));
+ if (!msg)
+ return -ENOMEM;
+
+ param = msg_to_param(msg);
+ param->level = level;
+
+ return go2001_queue_ctrl_msg_and_wait(gdev, msg);
+}
+
+int go2001_init_codec(struct go2001_ctx *ctx)
+{
+ int ret = 0;
+
+ if (WARN_ON(ctx->hw_inst.session_id != 0))
+ return -EINVAL;
+
+ if (ctx->codec_mode == CODEC_MODE_DECODER)
+ ret = go2001_init_decoder(ctx);
+ else
+ ret = go2001_init_encoder(ctx);
+
+ return ret;
+}
+
+int go2001_init(struct go2001_dev *gdev)
+{
+ int ret;
+
+ WARN_ON(!mutex_is_locked(&gdev->lock));
+
+ WARN_ON(!list_empty(&gdev->inst_list));
+ INIT_LIST_HEAD(&gdev->inst_list);
+
+ WARN_ON(!list_empty(&gdev->new_inst_list));
+ INIT_LIST_HEAD(&gdev->new_inst_list);
+
+ go2001_init_hw_inst(&gdev->ctrl_inst, 0);
+ list_add_tail(&gdev->ctrl_inst.inst_entry, &gdev->inst_list);
+ gdev->curr_hw_inst = &gdev->ctrl_inst;
+
+ ret = go2001_load_firmware(gdev);
+ if (ret) {
+ go2001_err(gdev, "Failed loading firmware\n");
+ return ret;
+ }
+
+ ret = go2001_init_messaging(gdev);
+ if (ret) {
+ go2001_err(gdev, "Failed to init messaging\n");
+ return ret;
+ }
+
+ ret = go2001_query_hw_version(gdev);
+ if (ret) {
+ go2001_err(gdev, "Failed querying HW version\n");
+ return ret;
+ }
+
+ ret = go2001_set_log_level(gdev, go2001_fw_debug_level);
+ if (ret) {
+ go2001_err(gdev, "Failed setting log level\n");
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/drivers/media/pci/go2001/go2001_hw.h b/drivers/media/pci/go2001/go2001_hw.h
new file mode 100644
index 0000000..5cbfd49
--- /dev/null
+++ b/drivers/media/pci/go2001/go2001_hw.h
@@ -0,0 +1,55 @@
+/*
+ * go2001 - GO2001 codec driver.
+ *
+ * Author : Pawel Osciak <posciak@xxxxxxxxxxxx>
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MEDIA_PCI_GO2001_GO2001_HW_H_
+#define _MEDIA_PCI_GO2001_GO2001_HW_H_
+
+#include "go2001.h"
+
+int go2001_map_iomem(struct go2001_dev *gdev);
+void go2001_unmap_iomem(struct go2001_dev *gdev);
+
+int go2001_init(struct go2001_dev *gdev);
+
+int go2001_init_codec(struct go2001_ctx *ctx);
+void go2001_release_codec(struct go2001_ctx *ctx);
+
+int go2001_set_dec_raw_fmt(struct go2001_ctx *ctx);
+
+int go2001_map_buffer(struct go2001_ctx *ctx, struct go2001_buffer *buf);
+void go2001_unmap_buffer(struct go2001_ctx *ctx, struct go2001_buffer *buf);
+int go2001_unmap_buffers(struct go2001_ctx *ctx, bool unmap_src,
+ bool unmap_dst);
+
+int go2001_prepare_gbuf(struct go2001_ctx *ctx, struct go2001_buffer *gbuf,
+ bool is_src);
+void go2001_finish_gbuf(struct go2001_ctx *ctx, struct go2001_buffer *gbuf);
+int go2001_schedule_frames(struct go2001_ctx *ctx);
+void go2001_wait_for_ctx_done(struct go2001_ctx *ctx);
+void go2001_send_pending(struct go2001_dev *gdev);
+void go2001_cancel_hw_inst_locked(struct go2001_dev *gdev,
+ struct go2001_hw_inst *hw_inst);
+void go2001_cancel_all_hw_inst_locked(struct go2001_dev *gdev);
+
+void go2001_init_hw_inst(struct go2001_hw_inst *inst, u32 inst_id);
+
+int go2001_get_reply(struct go2001_dev *gdev, struct go2001_msg *msg);
+
+#endif /* _MEDIA_PCI_GO2001_GO2001_HW_H_ */
diff --git a/drivers/media/pci/go2001/go2001_proto.h b/drivers/media/pci/go2001/go2001_proto.h
new file mode 100644
index 0000000..a5f8b67
--- /dev/null
+++ b/drivers/media/pci/go2001/go2001_proto.h
@@ -0,0 +1,359 @@
+/*
+ * go2001 - GO2001 codec driver.
+ *
+ * Author : Pawel Osciak <posciak@xxxxxxxxxxxx>
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MEDIA_PCI_GO2001_GO2001_PROTO_H_
+#define _MEDIA_PCI_GO2001_GO2001_PROTO_H_
+
+struct go2001_msg_ring_desc {
+ u32 msg_size;
+ u32 start_off;
+ u32 end_off;
+ u32 wr_off;
+ u32 rd_off;
+} __packed;
+
+#define GO2001_CTRL_SESSION_ID 0
+struct go2001_msg_hdr {
+ u32 size;
+ u32 session_id;
+ u32 sequence_id;
+ u32 type;
+ u32 status;
+} __packed;
+
+#define GO2001_MAX_MSG_PAYLOAD_SIZE SZ_256
+struct go2001_msg_payload {
+ struct go2001_msg_hdr hdr;
+ u8 param[GO2001_MAX_MSG_PAYLOAD_SIZE - sizeof(struct go2001_msg_hdr)];
+} __packed;
+
+#define go2001_calc_payload_size(param_size) \
+ (sizeof(struct go2001_msg_hdr) + (param_size))
+
+enum go2001_msg_status {
+ GO2001_STATUS_OK = 0,
+ GO2001_STATUS_FAIL = 1,
+ GO2001_STATUS_RES_NA = 2,
+ GO2001_STATUS_INVALID_PARAM = 3,
+ GO2001_STATUS_NOT_IMPLEMENTED = 4,
+ GO2001_STATUS_NEW_PICTURE_SIZE = 5,
+ GO2001_STATUS_WAITING_PICTURE_SIZE_CHANGED = 6,
+ GO2001_STATUS_STREAM_ERROR = 7,
+ GO2001_STATUS_NO_OUTPUT = 8,
+ GO2001_STATUS_INFO_NOT_READY = 9,
+ GO2001_STATUS_RESTART_SYS = 10,
+};
+
+enum go2001_msg_type {
+ GO2001_VM_INIT_DECODER = 0x100,
+ GO2001_VM_INIT_ENCODER = 0x101,
+ GO2001_VM_INIT_PASSTHROUGH = 0x102,
+ GO2001_VM_GET_VERSION = 0x104,
+ GO2001_VM_SET_MMAP = 0x105,
+ GO2001_VM_RELEASE_MMAP = 0x106,
+ GO2001_VM_EMPTY_BUFFER = 0x107,
+ GO2001_VM_GET_INFO = 0x108,
+ GO2001_VM_SET_CTRL = 0x109,
+ GO2001_VM_GET_CTRL = 0x10a,
+ GO2001_VM_RELEASE = 0x10b,
+ GO2001_VM_RELEASE_ALL = 0x10c,
+ GO2001_VM_EVENT_ASSERT = 0x200,
+ GO2001_VM_EVENT_LOG = 0x201,
+ GO2001_VM_SET_LOG_LEVEL = 0x300,
+};
+
+#define GO2001_MSG_RING_MEM_OFFSET 0x401000
+#define GO2001_MSG_RING_MEM_SIZE 0x2000
+#define GO2001_RX_RING_DESC_OFFSET 0x0
+#define GO2001_TX_RING_DESC_OFFSET 0x100
+
+#define GO2001_FMT_NV12 0x20001
+#define GO2001_FMT_NV12_TILED_8X4 0x20002
+#define GO2001_FMT_ARGB 0x20003
+
+enum go2001_hw_format_coded {
+ GO2001_FMT_VP8 = 1,
+ GO2001_FMT_VP9 = 2,
+};
+
+enum go2001_hw_format_raw {
+ GO2001_FMT_YUV420_PLANAR = 0,
+ GO2001_FMT_YUV420_SEMIPLANAR = 1,
+ GO2001_FMT_YUV420_SEMIPLANAR_VU = 2,
+ GO2001_FMT_YUV422_INTERLEAVED_YUYV = 3,
+ GO2001_FMT_YUV422_INTERLEAVED_UYVY = 4,
+ GO2001_FMT_RGB565 = 5,
+ GO2001_FMT_BGR565 = 6,
+ GO2001_FMT_RGB555 = 7,
+ GO2001_FMT_BGR555 = 8,
+ GO2001_FMT_RGB444 = 9,
+ GO2001_FMT_BGR444 = 10,
+ GO2001_FMT_RGB888 = 11,
+ GO2001_FMT_BGR888 = 12,
+ GO2001_FMT_RGB101010 = 13,
+ GO2001_FMT_BGR101010 = 14,
+};
+
+struct go2001_init_decoder_param {
+ u32 coded_fmt;
+ u32 concealment;
+} __packed;
+
+struct go2001_init_decoder_reply {
+ u32 session_id;
+ u32 input_address;
+ u32 input_buffer_size;
+ u32 output_address;
+} __packed;
+
+struct go2001_init_encoder_param {
+ u32 session_id;
+ u32 num_ref_frames;
+ u32 width;
+ u32 height;
+ u32 orig_width;
+ u32 orig_height;
+ u32 framerate_num;
+ u32 framerate_denom;
+ u32 raw_fmt;
+} __packed;
+
+struct go2001_init_encoder_reply {
+} __packed;
+
+struct go2001_get_info_reply {
+ u32 vpx_version;
+ u32 vpx_profile;
+ u32 visible_width;
+ u32 visible_height;
+ u32 coded_width;
+ u32 coded_height;
+ u32 scaled_width;
+ u32 scaled_height;
+} __packed;
+
+struct go2001_get_version_reply {
+ u32 hw_ver;
+ u32 sw_ver;
+ u32 vp8dec_hw_ver;
+ u32 vp8dec_sw_ver;
+ u32 vp8enc_hw_ver;
+ u32 vp8enc_sw_ver;
+ u32 vp9dec_hw_ver;
+ u32 vp9dec_sw_ver;
+} __packed;
+
+struct go2001_enc_coding_ctrl_area {
+ u32 enabled;
+ u32 top;
+ u32 left;
+ u32 bottom;
+ u32 right;
+} __packed;
+
+#define GO2001_CODING_CTRL_INTERP_FILTER_BICUBIC 0x0
+#define GO2001_CODING_CTRL_INTERP_FILTER_BILINEAR 0x1
+#define GO2001_CODING_CTRL_INTERP_FILTER_NONE 0x2
+
+#define GO2001_CODING_CTRL_DEBLOCK_FILTER_NORMAL 0x0
+#define GO2001_CODING_CTRL_DEBLOCK_FILTER_SIMPLE 0x1
+
+#define GO2001_CODING_CTRL_MV_DISABLED 0x0
+#define GO2001_CODING_CTRL_MV_ADAPTIVE 0x1
+#define GO2001_CODING_CTRL_MV_ENABLED 0x2
+
+#define GO2001_CODING_CTRL_QM_PSNR 0x0
+#define GO2001_CODING_CTRL_QM_SSIM 0x1
+struct go2001_enc_coding_ctrl {
+ u32 interp_filter_type;
+ u32 deblock_filter_type;
+ u32 deblock_filter_level;
+ u32 deblock_filter_sharpness;
+ u32 num_dct_parts;
+ u32 error_resilient;
+ u32 split_mv;
+ u32 quarter_pixel_mv;
+ u32 cir_start;
+ u32 cir_interval;
+ struct go2001_enc_coding_ctrl_area intra_area;
+ struct go2001_enc_coding_ctrl_area roi1_area;
+ struct go2001_enc_coding_ctrl_area roi2_area;
+ s32 roi1_delta_qp;
+ s32 roi2_delta_qp;
+ u32 deadzone_enabled;
+ u32 max_num_passes;
+ u32 quality_metric;
+ s32 qp_delta[5];
+ s32 adaptive_roi;
+ s32 adaptive_roi_color;
+} __packed;
+
+struct go2001_enc_rate_ctrl {
+} __packed;
+
+struct go2001_enc_preprocess_ctrl {
+} __packed;
+
+enum go2001_hw_ctrl_type {
+ GO2001_HW_CTRL_TYPE_RATE = 1,
+ GO2001_HW_CTRL_TYPE_CODING = 2,
+ GO2001_HW_CTRL_TYPE_PREPROCESS = 3,
+};
+
+union go2001_hw_ctrl {
+ struct go2001_enc_rate_ctrl rate_ctrl;
+ struct go2001_enc_coding_ctrl coding_ctrl;
+ struct go2001_enc_preprocess_ctrl prep_ctrl;
+} __packed;
+
+struct go2001_set_ctrl_param {
+ u32 type;
+ union go2001_hw_ctrl ctrl;
+} __packed;
+
+struct go2001_set_ctrl_reply {
+} __packed;
+
+#define G02001_EMPTY_BUF_DEC_FLAG_RES_CHANGE_DONE 0x1
+struct go2001_empty_buffer_dec_param {
+ u64 in_addr;
+ u32 payload_size;
+ u64 out_addr[2];
+ u32 flags;
+ u32 raw_fmt;
+} __packed;
+
+struct go2001_empty_buffer_dec_reply {
+ struct go2001_get_info_reply info;
+ u32 intra_frame;
+ u32 golden_frame;
+ u32 num_error_mbs;
+ u32 num_slice_rows;
+} __packed;
+
+#define GO2001_EMPTY_BUF_ENC_FRAME_KEYFRAME 0x0
+#define GO2001_EMPTY_BUF_ENC_FRAME_PRED 0x1
+
+enum go2001_enc_frame_control {
+ GO2001_FRM_CTRL_NO_REFRESH = 0,
+ GO2001_FRM_CTRL_REFERENCE = 1,
+ GO2001_FRM_CTRL_REFRESH = 2,
+ GO2001_FRM_CTRL_REFERENCE_AND_REFRESH = 3,
+};
+
+struct go2001_empty_buffer_enc_param {
+ u64 in_addr[3];
+ u64 out_addr;
+ u32 out_size;
+ u32 frame_type;
+ u32 time_increment;
+ u64 stab_in_addr;
+ u32 ipf_frame_ctrl;
+ u32 grf_frame_ctrl;
+ u32 arf_frame_ctrl;
+ u32 layer_id;
+ u32 bits_per_sec;
+} __packed;
+
+#define VP8_MAX_NUM_PARTITIONS 9
+struct go2001_empty_buffer_enc_reply {
+ u32 frame_type;
+ u32 partition_off[VP8_MAX_NUM_PARTITIONS];
+ u32 partition_size[VP8_MAX_NUM_PARTITIONS];
+ u32 payload_size;
+ u32 ipf_frame_ctrl;
+ u32 grf_frame_ctrl;
+ u32 arf_frame_ctrl;
+} __packed;
+
+struct go2001_mmap_list_desc {
+ u64 first_entry_dma_addr;
+ u32 entry_count;
+ u64 mmap_list_addr;
+} __packed;
+
+#define GO2001_VSM_DIR_IN BIT(0)
+#define GO2001_VSM_DIR_OUT BIT(1)
+#define GO2001_MMAP_MAX_ENTRIES 9
+struct go2001_set_mmap_param {
+ u32 dir;
+ u32 count;
+ struct go2001_mmap_list_desc mmap_list_desc[GO2001_MMAP_MAX_ENTRIES];
+} __packed;
+
+struct go2001_mmap_list_entry {
+ u64 dma_addr;
+ u32 size;
+} __packed;
+
+struct go2001_release_mmap_param {
+ u32 dir;
+ u32 count;
+ u64 addr[GO2001_MMAP_MAX_ENTRIES];
+} __packed;
+
+struct go2001_event_assert_reply {
+ u8 filename[32];
+ u8 funcname[32];
+ u8 expr[32];
+ u32 line_no;
+} __packed;
+
+struct go2001_event_log_reply {
+ u8 data[128];
+} __packed;
+
+#define GO2001_LOG_LEVEL_MAX 5
+#define GO2001_LOG_LEVEL_DISABLED 0xFFFFFFFF
+struct go2001_set_log_level_param {
+ u32 level;
+} __packed;
+
+struct go2001_set_log_level_reply {
+ u32 level;
+} __packed;
+
+struct go2001_boot_hdr {
+ u32 signature;
+ u32 entry_addr;
+ u32 size;
+ u32 checksum;
+} __packed;
+
+#define GO2001_FW_HDR_OFF 0x20afc0
+#define GO2001_FW_STOP 0x212010
+#define GO2001_FW_STOP_BIT BIT(20)
+
+#define GO2001_BOOT_FW_NAME "go2001-boot.fw"
+#define GO2001_BOOT_FW_OFF 0x207000
+#define GO2001_BOOT_FW_ENTRY_BASE 0xd0000000
+
+#define GO2001_FW_NAME "go2001.fw"
+#define GO2001_FW_OFF 0
+#define GO2001_FW_ENTRY_BASE 0
+
+#define GO2001_FW_SIGNATURE \
+(((u32)'P') | (((u32)'C') << 8) | (((u32)'I') << 16) | (((u32)'E') << 24))
+#define GO2001_FW_DONE_SIGNATURE \
+(((u32)'D') | (((u32)'O') << 8) | (((u32)'N') << 16) | (((u32)'E') << 24))
+
+#define GO2001_FW_MAX_SIZE SZ_1M
+
+#endif /* _MEDIA_PCI_GO2001_GO2001_PROTO_H_ */
--
2.7.4

Next message: Babu Moger: "Re: CPU_BIG_ENDIAN in generic code (was: Re: [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN)"
Previous message: Mika Westerberg: "Re: [PATCH 06/24] thunderbolt: Introduce thunderbolt bus and connection manager"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]