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path: root/drivers/media/platform/coda/coda-common.c
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-rw-r--r--drivers/media/platform/coda/coda-common.c2052
1 files changed, 2052 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
new file mode 100644
index 0000000..ced4760
--- /dev/null
+++ b/drivers/media/platform/coda/coda-common.c
@@ -0,0 +1,2052 @@
+/*
+ * Coda multi-standard codec IP
+ *
+ * Copyright (C) 2012 Vista Silicon S.L.
+ * Javier Martin, <javier.martin@vista-silicon.com>
+ * Xavier Duret
+ *
+ * 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.
+ */
+
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/genalloc.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kfifo.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/of.h>
+#include <linux/platform_data/coda.h>
+#include <linux/reset.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "coda.h"
+
+#define CODA_NAME "coda"
+
+#define CODADX6_MAX_INSTANCES 4
+
+#define CODA_PARA_BUF_SIZE (10 * 1024)
+#define CODA_ISRAM_SIZE (2048 * 2)
+
+#define MIN_W 176
+#define MIN_H 144
+
+#define S_ALIGN 1 /* multiple of 2 */
+#define W_ALIGN 1 /* multiple of 2 */
+#define H_ALIGN 1 /* multiple of 2 */
+
+#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
+
+int coda_debug;
+module_param(coda_debug, int, 0644);
+MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
+
+struct coda_fmt {
+ char *name;
+ u32 fourcc;
+};
+
+void coda_write(struct coda_dev *dev, u32 data, u32 reg)
+{
+ v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
+ "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+ writel(data, dev->regs_base + reg);
+}
+
+unsigned int coda_read(struct coda_dev *dev, u32 reg)
+{
+ u32 data;
+
+ data = readl(dev->regs_base + reg);
+ v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
+ "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+ return data;
+}
+
+/*
+ * Array of all formats supported by any version of Coda:
+ */
+static const struct coda_fmt coda_formats[] = {
+ {
+ .name = "YUV 4:2:0 Planar, YCbCr",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ },
+ {
+ .name = "YUV 4:2:0 Planar, YCrCb",
+ .fourcc = V4L2_PIX_FMT_YVU420,
+ },
+ {
+ .name = "H264 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_H264,
+ },
+ {
+ .name = "MPEG4 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_MPEG4,
+ },
+};
+
+#define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
+ { mode, src_fourcc, dst_fourcc, max_w, max_h }
+
+/*
+ * Arrays of codecs supported by each given version of Coda:
+ * i.MX27 -> codadx6
+ * i.MX5x -> coda7
+ * i.MX6 -> coda960
+ * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
+ */
+static const struct coda_codec codadx6_codecs[] = {
+ CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
+ CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
+};
+
+static const struct coda_codec coda7_codecs[] = {
+ CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
+ CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
+ CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
+ CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
+};
+
+static const struct coda_codec coda9_codecs[] = {
+ CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
+ CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
+ CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
+ CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
+};
+
+static bool coda_format_is_yuv(u32 fourcc)
+{
+ switch (fourcc) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YVU420:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * Normalize all supported YUV 4:2:0 formats to the value used in the codec
+ * tables.
+ */
+static u32 coda_format_normalize_yuv(u32 fourcc)
+{
+ return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
+}
+
+static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
+ int src_fourcc, int dst_fourcc)
+{
+ const struct coda_codec *codecs = dev->devtype->codecs;
+ int num_codecs = dev->devtype->num_codecs;
+ int k;
+
+ src_fourcc = coda_format_normalize_yuv(src_fourcc);
+ dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
+ if (src_fourcc == dst_fourcc)
+ return NULL;
+
+ for (k = 0; k < num_codecs; k++) {
+ if (codecs[k].src_fourcc == src_fourcc &&
+ codecs[k].dst_fourcc == dst_fourcc)
+ break;
+ }
+
+ if (k == num_codecs)
+ return NULL;
+
+ return &codecs[k];
+}
+
+static void coda_get_max_dimensions(struct coda_dev *dev,
+ const struct coda_codec *codec,
+ int *max_w, int *max_h)
+{
+ const struct coda_codec *codecs = dev->devtype->codecs;
+ int num_codecs = dev->devtype->num_codecs;
+ unsigned int w, h;
+ int k;
+
+ if (codec) {
+ w = codec->max_w;
+ h = codec->max_h;
+ } else {
+ for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
+ w = max(w, codecs[k].max_w);
+ h = max(h, codecs[k].max_h);
+ }
+ }
+
+ if (max_w)
+ *max_w = w;
+ if (max_h)
+ *max_h = h;
+}
+
+const char *coda_product_name(int product)
+{
+ static char buf[9];
+
+ switch (product) {
+ case CODA_DX6:
+ return "CodaDx6";
+ case CODA_7541:
+ return "CODA7541";
+ case CODA_960:
+ return "CODA960";
+ default:
+ snprintf(buf, sizeof(buf), "(0x%04x)", product);
+ return buf;
+ }
+}
+
+/*
+ * V4L2 ioctl() operations.
+ */
+static int coda_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
+ strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
+ sizeof(cap->card));
+ strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
+ cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+
+ return 0;
+}
+
+static int coda_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ const struct coda_codec *codecs = ctx->dev->devtype->codecs;
+ const struct coda_fmt *formats = coda_formats;
+ const struct coda_fmt *fmt;
+ int num_codecs = ctx->dev->devtype->num_codecs;
+ int num_formats = ARRAY_SIZE(coda_formats);
+ int i, k, num = 0;
+ bool yuv;
+
+ if (ctx->inst_type == CODA_INST_ENCODER)
+ yuv = (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ else
+ yuv = (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+ for (i = 0; i < num_formats; i++) {
+ /* Skip either raw or compressed formats */
+ if (yuv != coda_format_is_yuv(formats[i].fourcc))
+ continue;
+ /* All uncompressed formats are always supported */
+ if (yuv) {
+ if (num == f->index)
+ break;
+ ++num;
+ continue;
+ }
+ /* Compressed formats may be supported, check the codec list */
+ for (k = 0; k < num_codecs; k++) {
+ if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ formats[i].fourcc == codecs[k].dst_fourcc)
+ break;
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+ formats[i].fourcc == codecs[k].src_fourcc)
+ break;
+ }
+ if (k < num_codecs) {
+ if (num == f->index)
+ break;
+ ++num;
+ }
+ }
+
+ if (i < num_formats) {
+ fmt = &formats[i];
+ strlcpy(f->description, fmt->name, sizeof(f->description));
+ f->pixelformat = fmt->fourcc;
+ if (!yuv)
+ f->flags |= V4L2_FMT_FLAG_COMPRESSED;
+ return 0;
+ }
+
+ /* Format not found */
+ return -EINVAL;
+}
+
+static int coda_g_fmt(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_q_data *q_data;
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ q_data = get_q_data(ctx, f->type);
+ if (!q_data)
+ return -EINVAL;
+
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ f->fmt.pix.pixelformat = q_data->fourcc;
+ f->fmt.pix.width = q_data->width;
+ f->fmt.pix.height = q_data->height;
+ f->fmt.pix.bytesperline = q_data->bytesperline;
+
+ f->fmt.pix.sizeimage = q_data->sizeimage;
+ f->fmt.pix.colorspace = ctx->colorspace;
+
+ return 0;
+}
+
+static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
+ struct v4l2_format *f)
+{
+ struct coda_dev *dev = ctx->dev;
+ struct coda_q_data *q_data;
+ unsigned int max_w, max_h;
+ enum v4l2_field field;
+
+ field = f->fmt.pix.field;
+ if (field == V4L2_FIELD_ANY)
+ field = V4L2_FIELD_NONE;
+ else if (V4L2_FIELD_NONE != field)
+ return -EINVAL;
+
+ /* V4L2 specification suggests the driver corrects the format struct
+ * if any of the dimensions is unsupported */
+ f->fmt.pix.field = field;
+
+ coda_get_max_dimensions(dev, codec, &max_w, &max_h);
+ v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
+ &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
+ S_ALIGN);
+
+ switch (f->fmt.pix.pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YVU420:
+ case V4L2_PIX_FMT_H264:
+ case V4L2_PIX_FMT_MPEG4:
+ case V4L2_PIX_FMT_JPEG:
+ break;
+ default:
+ q_data = get_q_data(ctx, f->type);
+ if (!q_data)
+ return -EINVAL;
+ f->fmt.pix.pixelformat = q_data->fourcc;
+ }
+
+ switch (f->fmt.pix.pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YVU420:
+ /* Frame stride must be multiple of 8, but 16 for h.264 */
+ f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
+ f->fmt.pix.height * 3 / 2;
+ break;
+ case V4L2_PIX_FMT_H264:
+ case V4L2_PIX_FMT_MPEG4:
+ case V4L2_PIX_FMT_JPEG:
+ f->fmt.pix.bytesperline = 0;
+ f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
+ break;
+ default:
+ BUG();
+ }
+
+ return 0;
+}
+
+static int coda_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ const struct coda_codec *codec = NULL;
+ struct vb2_queue *src_vq;
+ int ret;
+
+ /*
+ * If the source format is already fixed, try to find a codec that
+ * converts to the given destination format
+ */
+ src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ if (vb2_is_streaming(src_vq)) {
+ struct coda_q_data *q_data_src;
+
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
+ f->fmt.pix.pixelformat);
+ if (!codec)
+ return -EINVAL;
+
+ f->fmt.pix.width = q_data_src->width;
+ f->fmt.pix.height = q_data_src->height;
+ } else {
+ /* Otherwise determine codec by encoded format, if possible */
+ codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
+ f->fmt.pix.pixelformat);
+ }
+
+ f->fmt.pix.colorspace = ctx->colorspace;
+
+ ret = coda_try_fmt(ctx, codec, f);
+ if (ret < 0)
+ return ret;
+
+ /* The h.264 decoder only returns complete 16x16 macroblocks */
+ if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
+ f->fmt.pix.width = f->fmt.pix.width;
+ f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
+ f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
+ f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
+ f->fmt.pix.height * 3 / 2;
+ }
+
+ return 0;
+}
+
+static int coda_try_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ const struct coda_codec *codec = NULL;
+
+ /* Determine codec by encoded format, returns NULL if raw or invalid */
+ if (ctx->inst_type == CODA_INST_DECODER) {
+ codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
+ V4L2_PIX_FMT_YUV420);
+ if (!codec)
+ codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_H264,
+ V4L2_PIX_FMT_YUV420);
+ if (!codec)
+ return -EINVAL;
+ }
+
+ if (!f->fmt.pix.colorspace)
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
+
+ return coda_try_fmt(ctx, codec, f);
+}
+
+static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+{
+ struct coda_q_data *q_data;
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+ if (!vq)
+ return -EINVAL;
+
+ q_data = get_q_data(ctx, f->type);
+ if (!q_data)
+ return -EINVAL;
+
+ if (vb2_is_busy(vq)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
+ return -EBUSY;
+ }
+
+ q_data->fourcc = f->fmt.pix.pixelformat;
+ q_data->width = f->fmt.pix.width;
+ q_data->height = f->fmt.pix.height;
+ q_data->bytesperline = f->fmt.pix.bytesperline;
+ q_data->sizeimage = f->fmt.pix.sizeimage;
+ q_data->rect.left = 0;
+ q_data->rect.top = 0;
+ q_data->rect.width = f->fmt.pix.width;
+ q_data->rect.height = f->fmt.pix.height;
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
+ f->type, q_data->width, q_data->height, q_data->fourcc);
+
+ return 0;
+}
+
+static int coda_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ int ret;
+
+ ret = coda_try_fmt_vid_cap(file, priv, f);
+ if (ret)
+ return ret;
+
+ return coda_s_fmt(ctx, f);
+}
+
+static int coda_s_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ struct v4l2_format f_cap;
+ int ret;
+
+ ret = coda_try_fmt_vid_out(file, priv, f);
+ if (ret)
+ return ret;
+
+ ret = coda_s_fmt(ctx, f);
+ if (ret)
+ return ret;
+
+ ctx->colorspace = f->fmt.pix.colorspace;
+
+ f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ coda_g_fmt(file, priv, &f_cap);
+ f_cap.fmt.pix.width = f->fmt.pix.width;
+ f_cap.fmt.pix.height = f->fmt.pix.height;
+
+ ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
+ if (ret)
+ return ret;
+
+ return coda_s_fmt(ctx, &f_cap);
+}
+
+static int coda_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
+}
+
+static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
+ struct v4l2_buffer *buf)
+{
+ struct vb2_queue *src_vq;
+
+ src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+
+ return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
+ (buf->sequence == (ctx->qsequence - 1)));
+}
+
+static int coda_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+ int ret;
+
+ ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
+
+ /* If this is the last capture buffer, emit an end-of-stream event */
+ if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ coda_buf_is_end_of_stream(ctx, buf)) {
+ const struct v4l2_event eos_event = {
+ .type = V4L2_EVENT_EOS
+ };
+
+ v4l2_event_queue_fh(&ctx->fh, &eos_event);
+ }
+
+ return ret;
+}
+
+static int coda_g_selection(struct file *file, void *fh,
+ struct v4l2_selection *s)
+{
+ struct coda_ctx *ctx = fh_to_ctx(fh);
+ struct coda_q_data *q_data;
+ struct v4l2_rect r, *rsel;
+
+ q_data = get_q_data(ctx, s->type);
+ if (!q_data)
+ return -EINVAL;
+
+ r.left = 0;
+ r.top = 0;
+ r.width = q_data->width;
+ r.height = q_data->height;
+ rsel = &q_data->rect;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ rsel = &r;
+ /* fallthrough */
+ case V4L2_SEL_TGT_CROP:
+ if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return -EINVAL;
+ break;
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ case V4L2_SEL_TGT_COMPOSE_PADDED:
+ rsel = &r;
+ /* fallthrough */
+ case V4L2_SEL_TGT_COMPOSE:
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ s->r = *rsel;
+
+ return 0;
+}
+
+static int coda_try_decoder_cmd(struct file *file, void *fh,
+ struct v4l2_decoder_cmd *dc)
+{
+ if (dc->cmd != V4L2_DEC_CMD_STOP)
+ return -EINVAL;
+
+ if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
+ return -EINVAL;
+
+ if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int coda_decoder_cmd(struct file *file, void *fh,
+ struct v4l2_decoder_cmd *dc)
+{
+ struct coda_ctx *ctx = fh_to_ctx(fh);
+ int ret;
+
+ ret = coda_try_decoder_cmd(file, fh, dc);
+ if (ret < 0)
+ return ret;
+
+ /* Ignore decoder stop command silently in encoder context */
+ if (ctx->inst_type != CODA_INST_DECODER)
+ return 0;
+
+ /* Set the stream-end flag on this context */
+ coda_bit_stream_end_flag(ctx);
+ ctx->hold = false;
+ v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
+
+ return 0;
+}
+
+static int coda_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, 0, NULL);
+ default:
+ return v4l2_ctrl_subscribe_event(fh, sub);
+ }
+}
+
+static const struct v4l2_ioctl_ops coda_ioctl_ops = {
+ .vidioc_querycap = coda_querycap,
+
+ .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
+ .vidioc_g_fmt_vid_cap = coda_g_fmt,
+ .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
+
+ .vidioc_enum_fmt_vid_out = coda_enum_fmt,
+ .vidioc_g_fmt_vid_out = coda_g_fmt,
+ .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
+
+ .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
+ .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
+
+ .vidioc_qbuf = coda_qbuf,
+ .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_dqbuf = coda_dqbuf,
+ .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+
+ .vidioc_streamon = v4l2_m2m_ioctl_streamon,
+ .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+
+ .vidioc_g_selection = coda_g_selection,
+
+ .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
+ .vidioc_decoder_cmd = coda_decoder_cmd,
+
+ .vidioc_subscribe_event = coda_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+void coda_set_gdi_regs(struct coda_ctx *ctx)
+{
+ struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
+ struct coda_dev *dev = ctx->dev;
+ int i;
+
+ for (i = 0; i < 16; i++)
+ coda_write(dev, tiled_map->xy2ca_map[i],
+ CODA9_GDI_XY2_CAS_0 + 4 * i);
+ for (i = 0; i < 4; i++)
+ coda_write(dev, tiled_map->xy2ba_map[i],
+ CODA9_GDI_XY2_BA_0 + 4 * i);
+ for (i = 0; i < 16; i++)
+ coda_write(dev, tiled_map->xy2ra_map[i],
+ CODA9_GDI_XY2_RAS_0 + 4 * i);
+ coda_write(dev, tiled_map->xy2rbc_config, CODA9_GDI_XY2_RBC_CONFIG);
+ for (i = 0; i < 32; i++)
+ coda_write(dev, tiled_map->rbc2axi_map[i],
+ CODA9_GDI_RBC2_AXI_0 + 4 * i);
+}
+
+/*
+ * Mem-to-mem operations.
+ */
+
+static void coda_device_run(void *m2m_priv)
+{
+ struct coda_ctx *ctx = m2m_priv;
+ struct coda_dev *dev = ctx->dev;
+
+ queue_work(dev->workqueue, &ctx->pic_run_work);
+}
+
+static void coda_pic_run_work(struct work_struct *work)
+{
+ struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
+ struct coda_dev *dev = ctx->dev;
+ int ret;
+
+ mutex_lock(&ctx->buffer_mutex);
+ mutex_lock(&dev->coda_mutex);
+
+ ret = ctx->ops->prepare_run(ctx);
+ if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
+ mutex_unlock(&dev->coda_mutex);
+ mutex_unlock(&ctx->buffer_mutex);
+ /* job_finish scheduled by prepare_decode */
+ return;
+ }
+
+ if (!wait_for_completion_timeout(&ctx->completion,
+ msecs_to_jiffies(1000))) {
+ dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
+
+ ctx->hold = true;
+
+ coda_hw_reset(ctx);
+ } else if (!ctx->aborting) {
+ ctx->ops->finish_run(ctx);
+ }
+
+ if (ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out))
+ queue_work(dev->workqueue, &ctx->seq_end_work);
+
+ mutex_unlock(&dev->coda_mutex);
+ mutex_unlock(&ctx->buffer_mutex);
+
+ v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static int coda_job_ready(void *m2m_priv)
+{
+ struct coda_ctx *ctx = m2m_priv;
+
+ /*
+ * For both 'P' and 'key' frame cases 1 picture
+ * and 1 frame are needed. In the decoder case,
+ * the compressed frame can be in the bitstream.
+ */
+ if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
+ ctx->inst_type != CODA_INST_DECODER) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: not enough video buffers.\n");
+ return 0;
+ }
+
+ if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: not enough video capture buffers.\n");
+ return 0;
+ }
+
+ if (ctx->hold ||
+ ((ctx->inst_type == CODA_INST_DECODER) &&
+ (coda_get_bitstream_payload(ctx) < 512) &&
+ !(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "%d: not ready: not enough bitstream data.\n",
+ ctx->idx);
+ return 0;
+ }
+
+ if (ctx->aborting) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: aborting\n");
+ return 0;
+ }
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "job ready\n");
+ return 1;
+}
+
+static void coda_job_abort(void *priv)
+{
+ struct coda_ctx *ctx = priv;
+
+ ctx->aborting = 1;
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "Aborting task\n");
+}
+
+static void coda_lock(void *m2m_priv)
+{
+ struct coda_ctx *ctx = m2m_priv;
+ struct coda_dev *pcdev = ctx->dev;
+
+ mutex_lock(&pcdev->dev_mutex);
+}
+
+static void coda_unlock(void *m2m_priv)
+{
+ struct coda_ctx *ctx = m2m_priv;
+ struct coda_dev *pcdev = ctx->dev;
+
+ mutex_unlock(&pcdev->dev_mutex);
+}
+
+static const struct v4l2_m2m_ops coda_m2m_ops = {
+ .device_run = coda_device_run,
+ .job_ready = coda_job_ready,
+ .job_abort = coda_job_abort,
+ .lock = coda_lock,
+ .unlock = coda_unlock,
+};
+
+static void coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
+{
+ struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
+ int luma_map, chro_map, i;
+
+ memset(tiled_map, 0, sizeof(*tiled_map));
+
+ luma_map = 64;
+ chro_map = 64;
+ tiled_map->map_type = tiled_map_type;
+ for (i = 0; i < 16; i++)
+ tiled_map->xy2ca_map[i] = luma_map << 8 | chro_map;
+ for (i = 0; i < 4; i++)
+ tiled_map->xy2ba_map[i] = luma_map << 8 | chro_map;
+ for (i = 0; i < 16; i++)
+ tiled_map->xy2ra_map[i] = luma_map << 8 | chro_map;
+
+ if (tiled_map_type == GDI_LINEAR_FRAME_MAP) {
+ tiled_map->xy2rbc_config = 0;
+ } else {
+ dev_err(&ctx->dev->plat_dev->dev, "invalid map type: %d\n",
+ tiled_map_type);
+ return;
+ }
+}
+
+static void set_default_params(struct coda_ctx *ctx)
+{
+ u32 src_fourcc, dst_fourcc;
+ int max_w;
+ int max_h;
+
+ if (ctx->inst_type == CODA_INST_ENCODER) {
+ src_fourcc = V4L2_PIX_FMT_YUV420;
+ dst_fourcc = V4L2_PIX_FMT_H264;
+ } else {
+ src_fourcc = V4L2_PIX_FMT_H264;
+ dst_fourcc = V4L2_PIX_FMT_YUV420;
+ }
+ ctx->codec = coda_find_codec(ctx->dev, src_fourcc, dst_fourcc);
+ max_w = ctx->codec->max_w;
+ max_h = ctx->codec->max_h;
+
+ ctx->params.codec_mode = ctx->codec->mode;
+ ctx->colorspace = V4L2_COLORSPACE_REC709;
+ ctx->params.framerate = 30;
+ ctx->aborting = 0;
+
+ /* Default formats for output and input queues */
+ ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
+ ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
+ ctx->q_data[V4L2_M2M_SRC].width = max_w;
+ ctx->q_data[V4L2_M2M_SRC].height = max_h;
+ ctx->q_data[V4L2_M2M_DST].width = max_w;
+ ctx->q_data[V4L2_M2M_DST].height = max_h;
+ if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
+ ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
+ ctx->q_data[V4L2_M2M_SRC].sizeimage = (max_w * max_h * 3) / 2;
+ ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
+ ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
+ } else {
+ ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
+ ctx->q_data[V4L2_M2M_SRC].sizeimage = CODA_MAX_FRAME_SIZE;
+ ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
+ ctx->q_data[V4L2_M2M_DST].sizeimage = (max_w * max_h * 3) / 2;
+ }
+ ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
+ ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
+ ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
+ ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
+
+ if (ctx->dev->devtype->product == CODA_960)
+ coda_set_tiled_map_type(ctx, GDI_LINEAR_FRAME_MAP);
+}
+
+/*
+ * Queue operations
+ */
+static int coda_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(vq);
+ struct coda_q_data *q_data;
+ unsigned int size;
+
+ q_data = get_q_data(ctx, vq->type);
+ size = q_data->sizeimage;
+
+ *nplanes = 1;
+ sizes[0] = size;
+
+ alloc_ctxs[0] = ctx->dev->alloc_ctx;
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "get %d buffer(s) of size %d each.\n", *nbuffers, size);
+
+ return 0;
+}
+
+static int coda_buf_prepare(struct vb2_buffer *vb)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct coda_q_data *q_data;
+
+ q_data = get_q_data(ctx, vb->vb2_queue->type);
+
+ if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
+ v4l2_warn(&ctx->dev->v4l2_dev,
+ "%s data will not fit into plane (%lu < %lu)\n",
+ __func__, vb2_plane_size(vb, 0),
+ (long)q_data->sizeimage);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void coda_buf_queue(struct vb2_buffer *vb)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct coda_q_data *q_data;
+
+ q_data = get_q_data(ctx, vb->vb2_queue->type);
+
+ /*
+ * In the decoder case, immediately try to copy the buffer into the
+ * bitstream ringbuffer and mark it as ready to be dequeued.
+ */
+ if (q_data->fourcc == V4L2_PIX_FMT_H264 &&
+ vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ /*
+ * For backwards compatibility, queuing an empty buffer marks
+ * the stream end
+ */
+ if (vb2_get_plane_payload(vb, 0) == 0)
+ coda_bit_stream_end_flag(ctx);
+ mutex_lock(&ctx->bitstream_mutex);
+ v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
+ if (vb2_is_streaming(vb->vb2_queue))
+ coda_fill_bitstream(ctx);
+ mutex_unlock(&ctx->bitstream_mutex);
+ } else {
+ v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
+ }
+}
+
+int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
+ size_t size, const char *name, struct dentry *parent)
+{
+ buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
+ GFP_KERNEL);
+ if (!buf->vaddr) {
+ v4l2_err(&dev->v4l2_dev,
+ "Failed to allocate %s buffer of size %u\n",
+ name, size);
+ return -ENOMEM;
+ }
+
+ buf->size = size;
+
+ if (name && parent) {
+ buf->blob.data = buf->vaddr;
+ buf->blob.size = size;
+ buf->dentry = debugfs_create_blob(name, 0644, parent,
+ &buf->blob);
+ if (!buf->dentry)
+ dev_warn(&dev->plat_dev->dev,
+ "failed to create debugfs entry %s\n", name);
+ }
+
+ return 0;
+}
+
+void coda_free_aux_buf(struct coda_dev *dev,
+ struct coda_aux_buf *buf)
+{
+ if (buf->vaddr) {
+ dma_free_coherent(&dev->plat_dev->dev, buf->size,
+ buf->vaddr, buf->paddr);
+ buf->vaddr = NULL;
+ buf->size = 0;
+ }
+ debugfs_remove(buf->dentry);
+}
+
+static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
+ struct coda_q_data *q_data_src, *q_data_dst;
+ struct vb2_buffer *buf;
+ u32 dst_fourcc;
+ int ret = 0;
+
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (q_data_src->fourcc == V4L2_PIX_FMT_H264) {
+ /* copy the buffers that where queued before streamon */
+ mutex_lock(&ctx->bitstream_mutex);
+ coda_fill_bitstream(ctx);
+ mutex_unlock(&ctx->bitstream_mutex);
+
+ if (coda_get_bitstream_payload(ctx) < 512) {
+ ret = -EINVAL;
+ goto err;
+ }
+ } else {
+ if (count < 1) {
+ ret = -EINVAL;
+ goto err;
+ }
+ }
+
+ ctx->streamon_out = 1;
+ } else {
+ if (count < 1) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ctx->streamon_cap = 1;
+ }
+
+ /* Don't start the coda unless both queues are on */
+ if (!(ctx->streamon_out & ctx->streamon_cap))
+ return 0;
+
+ /* Allow decoder device_run with no new buffers queued */
+ if (ctx->inst_type == CODA_INST_DECODER)
+ v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
+
+ ctx->gopcounter = ctx->params.gop_size - 1;
+ q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ dst_fourcc = q_data_dst->fourcc;
+
+ ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
+ q_data_dst->fourcc);
+ if (!ctx->codec) {
+ v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = ctx->ops->start_streaming(ctx);
+ if (ctx->inst_type == CODA_INST_DECODER) {
+ if (ret == -EAGAIN)
+ return 0;
+ else if (ret < 0)
+ goto err;
+ }
+
+ ctx->initialized = 1;
+ return ret;
+
+err:
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
+ v4l2_m2m_buf_done(buf, VB2_BUF_STATE_DEQUEUED);
+ } else {
+ while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
+ v4l2_m2m_buf_done(buf, VB2_BUF_STATE_DEQUEUED);
+ }
+ return ret;
+}
+
+static void coda_stop_streaming(struct vb2_queue *q)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ struct coda_dev *dev = ctx->dev;
+ struct vb2_buffer *buf;
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+ "%s: output\n", __func__);
+ ctx->streamon_out = 0;
+
+ coda_bit_stream_end_flag(ctx);
+
+ ctx->isequence = 0;
+
+ while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
+ v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+ } else {
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+ "%s: capture\n", __func__);
+ ctx->streamon_cap = 0;
+
+ ctx->osequence = 0;
+ ctx->sequence_offset = 0;
+
+ while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
+ v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+ }
+
+ if (!ctx->streamon_out && !ctx->streamon_cap) {
+ struct coda_timestamp *ts;
+
+ mutex_lock(&ctx->bitstream_mutex);
+ while (!list_empty(&ctx->timestamp_list)) {
+ ts = list_first_entry(&ctx->timestamp_list,
+ struct coda_timestamp, list);
+ list_del(&ts->list);
+ kfree(ts);
+ }
+ mutex_unlock(&ctx->bitstream_mutex);
+ kfifo_init(&ctx->bitstream_fifo,
+ ctx->bitstream.vaddr, ctx->bitstream.size);
+ ctx->runcounter = 0;
+ }
+}
+
+static const struct vb2_ops coda_qops = {
+ .queue_setup = coda_queue_setup,
+ .buf_prepare = coda_buf_prepare,
+ .buf_queue = coda_buf_queue,
+ .start_streaming = coda_start_streaming,
+ .stop_streaming = coda_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct coda_ctx *ctx =
+ container_of(ctrl->handler, struct coda_ctx, ctrls);
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ if (ctrl->val)
+ ctx->params.rot_mode |= CODA_MIR_HOR;
+ else
+ ctx->params.rot_mode &= ~CODA_MIR_HOR;
+ break;
+ case V4L2_CID_VFLIP:
+ if (ctrl->val)
+ ctx->params.rot_mode |= CODA_MIR_VER;
+ else
+ ctx->params.rot_mode &= ~CODA_MIR_VER;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ ctx->params.bitrate = ctrl->val / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+ ctx->params.gop_size = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
+ ctx->params.h264_intra_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
+ ctx->params.h264_inter_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
+ ctx->params.h264_min_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
+ ctx->params.h264_max_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
+ ctx->params.h264_deblk_alpha = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
+ ctx->params.h264_deblk_beta = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
+ ctx->params.h264_deblk_enabled = (ctrl->val ==
+ V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
+ break;
+ case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
+ ctx->params.mpeg4_intra_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
+ ctx->params.mpeg4_inter_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
+ ctx->params.slice_mode = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
+ ctx->params.slice_max_mb = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
+ ctx->params.slice_max_bits = ctrl->val * 8;
+ break;
+ case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
+ break;
+ case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
+ ctx->params.intra_refresh = ctrl->val;
+ break;
+ default:
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "Invalid control, id=%d, val=%d\n",
+ ctrl->id, ctrl->val);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops coda_ctrl_ops = {
+ .s_ctrl = coda_s_ctrl,
+};
+
+static int coda_ctrls_setup(struct coda_ctx *ctx)
+{
+ v4l2_ctrl_handler_init(&ctx->ctrls, 9);
+
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
+ if (ctx->dev->devtype->product != CODA_960) {
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
+ }
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
+ v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
+ V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
+ V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
+ v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
+ V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
+ V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
+ 500);
+ v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_HEADER_MODE,
+ V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
+ (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
+ V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
+ 1920 * 1088 / 256, 1, 0);
+
+ if (ctx->ctrls.error) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "control initialization error (%d)",
+ ctx->ctrls.error);
+ return -EINVAL;
+ }
+
+ return v4l2_ctrl_handler_setup(&ctx->ctrls);
+}
+
+static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
+{
+ vq->drv_priv = ctx;
+ vq->ops = &coda_qops;
+ vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ vq->lock = &ctx->dev->dev_mutex;
+
+ return vb2_queue_init(vq);
+}
+
+int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ int ret;
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+
+ ret = coda_queue_init(priv, src_vq);
+ if (ret)
+ return ret;
+
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+
+ return coda_queue_init(priv, dst_vq);
+}
+
+int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ int ret;
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+
+ ret = coda_queue_init(priv, src_vq);
+ if (ret)
+ return ret;
+
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+
+ return coda_queue_init(priv, dst_vq);
+}
+
+static int coda_next_free_instance(struct coda_dev *dev)
+{
+ int idx = ffz(dev->instance_mask);
+
+ if ((idx < 0) ||
+ (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
+ return -EBUSY;
+
+ return idx;
+}
+
+static int coda_open(struct file *file, enum coda_inst_type inst_type,
+ const struct coda_context_ops *ctx_ops)
+{
+ struct coda_dev *dev = video_drvdata(file);
+ struct coda_ctx *ctx = NULL;
+ char *name;
+ int ret;
+ int idx;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ idx = coda_next_free_instance(dev);
+ if (idx < 0) {
+ ret = idx;
+ goto err_coda_max;
+ }
+ set_bit(idx, &dev->instance_mask);
+
+ name = kasprintf(GFP_KERNEL, "context%d", idx);
+ ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
+ kfree(name);
+
+ ctx->inst_type = inst_type;
+ ctx->ops = ctx_ops;
+ init_completion(&ctx->completion);
+ INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
+ INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
+ v4l2_fh_init(&ctx->fh, video_devdata(file));
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+ ctx->dev = dev;
+ ctx->idx = idx;
+ switch (dev->devtype->product) {
+ case CODA_7541:
+ case CODA_960:
+ ctx->reg_idx = 0;
+ break;
+ default:
+ ctx->reg_idx = idx;
+ }
+
+ /* Power up and upload firmware if necessary */
+ ret = pm_runtime_get_sync(&dev->plat_dev->dev);
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
+ goto err_pm_get;
+ }
+
+ ret = clk_prepare_enable(dev->clk_per);
+ if (ret)
+ goto err_clk_per;
+
+ ret = clk_prepare_enable(dev->clk_ahb);
+ if (ret)
+ goto err_clk_ahb;
+
+ set_default_params(ctx);
+ ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
+ ctx->ops->queue_init);
+ if (IS_ERR(ctx->fh.m2m_ctx)) {
+ ret = PTR_ERR(ctx->fh.m2m_ctx);
+
+ v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
+ __func__, ret);
+ goto err_ctx_init;
+ }
+
+ ret = coda_ctrls_setup(ctx);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
+ goto err_ctrls_setup;
+ }
+
+ ctx->fh.ctrl_handler = &ctx->ctrls;
+
+ ret = coda_alloc_context_buf(ctx, &ctx->parabuf, CODA_PARA_BUF_SIZE,
+ "parabuf");
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
+ goto err_dma_alloc;
+ }
+
+ ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
+ ctx->bitstream.vaddr = dma_alloc_writecombine(&dev->plat_dev->dev,
+ ctx->bitstream.size, &ctx->bitstream.paddr, GFP_KERNEL);
+ if (!ctx->bitstream.vaddr) {
+ v4l2_err(&dev->v4l2_dev,
+ "failed to allocate bitstream ringbuffer");
+ ret = -ENOMEM;
+ goto err_dma_writecombine;
+ }
+ kfifo_init(&ctx->bitstream_fifo,
+ ctx->bitstream.vaddr, ctx->bitstream.size);
+ mutex_init(&ctx->bitstream_mutex);
+ mutex_init(&ctx->buffer_mutex);
+ INIT_LIST_HEAD(&ctx->timestamp_list);
+
+ coda_lock(ctx);
+ list_add(&ctx->list, &dev->instances);
+ coda_unlock(ctx);
+
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
+ ctx->idx, ctx);
+
+ return 0;
+
+err_dma_writecombine:
+ if (ctx->dev->devtype->product == CODA_DX6)
+ coda_free_aux_buf(dev, &ctx->workbuf);
+ coda_free_aux_buf(dev, &ctx->parabuf);
+err_dma_alloc:
+ v4l2_ctrl_handler_free(&ctx->ctrls);
+err_ctrls_setup:
+ v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+err_ctx_init:
+ clk_disable_unprepare(dev->clk_ahb);
+err_clk_ahb:
+ clk_disable_unprepare(dev->clk_per);
+err_clk_per:
+ pm_runtime_put_sync(&dev->plat_dev->dev);
+err_pm_get:
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ clear_bit(ctx->idx, &dev->instance_mask);
+err_coda_max:
+ kfree(ctx);
+ return ret;
+}
+
+static int coda_encoder_open(struct file *file)
+{
+ return coda_open(file, CODA_INST_ENCODER, &coda_bit_encode_ops);
+}
+
+static int coda_decoder_open(struct file *file)
+{
+ return coda_open(file, CODA_INST_DECODER, &coda_bit_decode_ops);
+}
+
+static int coda_release(struct file *file)
+{
+ struct coda_dev *dev = video_drvdata(file);
+ struct coda_ctx *ctx = fh_to_ctx(file->private_data);
+
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
+ ctx);
+
+ debugfs_remove_recursive(ctx->debugfs_entry);
+
+ /* If this instance is running, call .job_abort and wait for it to end */
+ v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+
+ /* In case the instance was not running, we still need to call SEQ_END */
+ if (ctx->initialized) {
+ queue_work(dev->workqueue, &ctx->seq_end_work);
+ flush_work(&ctx->seq_end_work);
+ }
+
+ coda_lock(ctx);
+ list_del(&ctx->list);
+ coda_unlock(ctx);
+
+ dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
+ ctx->bitstream.vaddr, ctx->bitstream.paddr);
+ if (ctx->dev->devtype->product == CODA_DX6)
+ coda_free_aux_buf(dev, &ctx->workbuf);
+
+ coda_free_aux_buf(dev, &ctx->parabuf);
+ v4l2_ctrl_handler_free(&ctx->ctrls);
+ clk_disable_unprepare(dev->clk_ahb);
+ clk_disable_unprepare(dev->clk_per);
+ pm_runtime_put_sync(&dev->plat_dev->dev);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ clear_bit(ctx->idx, &dev->instance_mask);
+ if (ctx->ops->release)
+ ctx->ops->release(ctx);
+ kfree(ctx);
+
+ return 0;
+}
+
+static const struct v4l2_file_operations coda_encoder_fops = {
+ .owner = THIS_MODULE,
+ .open = coda_encoder_open,
+ .release = coda_release,
+ .poll = v4l2_m2m_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = v4l2_m2m_fop_mmap,
+};
+
+static const struct v4l2_file_operations coda_decoder_fops = {
+ .owner = THIS_MODULE,
+ .open = coda_decoder_open,
+ .release = coda_release,
+ .poll = v4l2_m2m_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = v4l2_m2m_fop_mmap,
+};
+
+static int coda_hw_init(struct coda_dev *dev)
+{
+ u32 data;
+ u16 *p;
+ int i, ret;
+
+ ret = clk_prepare_enable(dev->clk_per);
+ if (ret)
+ goto err_clk_per;
+
+ ret = clk_prepare_enable(dev->clk_ahb);
+ if (ret)
+ goto err_clk_ahb;
+
+ if (dev->rstc)
+ reset_control_reset(dev->rstc);
+
+ /*
+ * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
+ * The 16-bit chars in the code buffer are in memory access
+ * order, re-sort them to CODA order for register download.
+ * Data in this SRAM survives a reboot.
+ */
+ p = (u16 *)dev->codebuf.vaddr;
+ if (dev->devtype->product == CODA_DX6) {
+ for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
+ data = CODA_DOWN_ADDRESS_SET(i) |
+ CODA_DOWN_DATA_SET(p[i ^ 1]);
+ coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
+ }
+ } else {
+ for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
+ data = CODA_DOWN_ADDRESS_SET(i) |
+ CODA_DOWN_DATA_SET(p[round_down(i, 4) +
+ 3 - (i % 4)]);
+ coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
+ }
+ }
+
+ /* Clear registers */
+ for (i = 0; i < 64; i++)
+ coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
+
+ /* Tell the BIT where to find everything it needs */
+ if (dev->devtype->product == CODA_960 ||
+ dev->devtype->product == CODA_7541) {
+ coda_write(dev, dev->tempbuf.paddr,
+ CODA_REG_BIT_TEMP_BUF_ADDR);
+ coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
+ } else {
+ coda_write(dev, dev->workbuf.paddr,
+ CODA_REG_BIT_WORK_BUF_ADDR);
+ }
+ coda_write(dev, dev->codebuf.paddr,
+ CODA_REG_BIT_CODE_BUF_ADDR);
+ coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
+
+ /* Set default values */
+ switch (dev->devtype->product) {
+ case CODA_DX6:
+ coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
+ CODA_REG_BIT_STREAM_CTRL);
+ break;
+ default:
+ coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
+ CODA_REG_BIT_STREAM_CTRL);
+ }
+ if (dev->devtype->product == CODA_960)
+ coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
+ else
+ coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
+
+ if (dev->devtype->product != CODA_DX6)
+ coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
+
+ coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
+ CODA_REG_BIT_INT_ENABLE);
+
+ /* Reset VPU and start processor */
+ data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
+ data |= CODA_REG_RESET_ENABLE;
+ coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
+ udelay(10);
+ data &= ~CODA_REG_RESET_ENABLE;
+ coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
+ coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
+
+ clk_disable_unprepare(dev->clk_ahb);
+ clk_disable_unprepare(dev->clk_per);
+
+ return 0;
+
+err_clk_ahb:
+ clk_disable_unprepare(dev->clk_per);
+err_clk_per:
+ return ret;
+}
+
+static int coda_register_device(struct coda_dev *dev, struct video_device *vfd)
+{
+ vfd->release = video_device_release_empty,
+ vfd->lock = &dev->dev_mutex;
+ vfd->v4l2_dev = &dev->v4l2_dev;
+ vfd->vfl_dir = VFL_DIR_M2M;
+ video_set_drvdata(vfd, dev);
+
+ /* Not applicable, use the selection API instead */
+ v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
+ v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
+ v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
+
+ return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
+}
+
+static void coda_fw_callback(const struct firmware *fw, void *context)
+{
+ struct coda_dev *dev = context;
+ struct platform_device *pdev = dev->plat_dev;
+ int ret;
+
+ if (!fw) {
+ v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
+ goto put_pm;
+ }
+
+ /* allocate auxiliary per-device code buffer for the BIT processor */
+ ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
+ dev->debugfs_root);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to allocate code buffer\n");
+ goto put_pm;
+ }
+
+ /* Copy the whole firmware image to the code buffer */
+ memcpy(dev->codebuf.vaddr, fw->data, fw->size);
+ release_firmware(fw);
+
+ ret = coda_hw_init(dev);
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
+ goto put_pm;
+ }
+
+ ret = coda_check_firmware(dev);
+ if (ret < 0)
+ goto put_pm;
+
+ dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(dev->alloc_ctx)) {
+ v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
+ goto put_pm;
+ }
+
+ dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
+ if (IS_ERR(dev->m2m_dev)) {
+ v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
+ goto rel_ctx;
+ }
+
+ dev->vfd[0].fops = &coda_encoder_fops,
+ dev->vfd[0].ioctl_ops = &coda_ioctl_ops;
+ snprintf(dev->vfd[0].name, sizeof(dev->vfd[0].name), "coda-encoder");
+ ret = coda_register_device(dev, &dev->vfd[0]);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev,
+ "Failed to register encoder video device\n");
+ goto rel_m2m;
+ }
+
+ dev->vfd[1].fops = &coda_decoder_fops,
+ dev->vfd[1].ioctl_ops = &coda_ioctl_ops;
+ snprintf(dev->vfd[1].name, sizeof(dev->vfd[1].name), "coda-decoder");
+ ret = coda_register_device(dev, &dev->vfd[1]);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev,
+ "Failed to register decoder video device\n");
+ goto rel_m2m;
+ }
+
+ v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
+ dev->vfd[0].num, dev->vfd[1].num);
+
+ pm_runtime_put_sync(&pdev->dev);
+ return;
+
+rel_m2m:
+ v4l2_m2m_release(dev->m2m_dev);
+rel_ctx:
+ vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
+put_pm:
+ pm_runtime_put_sync(&pdev->dev);
+}
+
+static int coda_firmware_request(struct coda_dev *dev)
+{
+ char *fw = dev->devtype->firmware;
+
+ dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
+ coda_product_name(dev->devtype->product));
+
+ return request_firmware_nowait(THIS_MODULE, true,
+ fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
+}
+
+enum coda_platform {
+ CODA_IMX27,
+ CODA_IMX53,
+ CODA_IMX6Q,
+ CODA_IMX6DL,
+};
+
+static const struct coda_devtype coda_devdata[] = {
+ [CODA_IMX27] = {
+ .firmware = "v4l-codadx6-imx27.bin",
+ .product = CODA_DX6,
+ .codecs = codadx6_codecs,
+ .num_codecs = ARRAY_SIZE(codadx6_codecs),
+ .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
+ .iram_size = 0xb000,
+ },
+ [CODA_IMX53] = {
+ .firmware = "v4l-coda7541-imx53.bin",
+ .product = CODA_7541,
+ .codecs = coda7_codecs,
+ .num_codecs = ARRAY_SIZE(coda7_codecs),
+ .workbuf_size = 128 * 1024,
+ .tempbuf_size = 304 * 1024,
+ .iram_size = 0x14000,
+ },
+ [CODA_IMX6Q] = {
+ .firmware = "v4l-coda960-imx6q.bin",
+ .product = CODA_960,
+ .codecs = coda9_codecs,
+ .num_codecs = ARRAY_SIZE(coda9_codecs),
+ .workbuf_size = 80 * 1024,
+ .tempbuf_size = 204 * 1024,
+ .iram_size = 0x21000,
+ },
+ [CODA_IMX6DL] = {
+ .firmware = "v4l-coda960-imx6dl.bin",
+ .product = CODA_960,
+ .codecs = coda9_codecs,
+ .num_codecs = ARRAY_SIZE(coda9_codecs),
+ .workbuf_size = 80 * 1024,
+ .tempbuf_size = 204 * 1024,
+ .iram_size = 0x20000,
+ },
+};
+
+static struct platform_device_id coda_platform_ids[] = {
+ { .name = "coda-imx27", .driver_data = CODA_IMX27 },
+ { .name = "coda-imx53", .driver_data = CODA_IMX53 },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, coda_platform_ids);
+
+#ifdef CONFIG_OF
+static const struct of_device_id coda_dt_ids[] = {
+ { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
+ { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
+ { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
+ { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, coda_dt_ids);
+#endif
+
+static int coda_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
+ const struct platform_device_id *pdev_id;
+ struct coda_platform_data *pdata = pdev->dev.platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct gen_pool *pool;
+ struct coda_dev *dev;
+ struct resource *res;
+ int ret, irq;
+
+ dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ dev_err(&pdev->dev, "Not enough memory for %s\n",
+ CODA_NAME);
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&dev->irqlock);
+ INIT_LIST_HEAD(&dev->instances);
+
+ dev->plat_dev = pdev;
+ dev->clk_per = devm_clk_get(&pdev->dev, "per");
+ if (IS_ERR(dev->clk_per)) {
+ dev_err(&pdev->dev, "Could not get per clock\n");
+ return PTR_ERR(dev->clk_per);
+ }
+
+ dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
+ if (IS_ERR(dev->clk_ahb)) {
+ dev_err(&pdev->dev, "Could not get ahb clock\n");
+ return PTR_ERR(dev->clk_ahb);
+ }
+
+ /* Get memory for physical registers */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(dev->regs_base))
+ return PTR_ERR(dev->regs_base);
+
+ /* IRQ */
+ irq = platform_get_irq_byname(pdev, "bit");
+ if (irq < 0)
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq resource\n");
+ return irq;
+ }
+
+ ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
+ IRQF_ONESHOT, dev_name(&pdev->dev), dev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
+ return ret;
+ }
+
+ dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
+ if (IS_ERR(dev->rstc)) {
+ ret = PTR_ERR(dev->rstc);
+ if (ret == -ENOENT || ret == -ENOSYS) {
+ dev->rstc = NULL;
+ } else {
+ dev_err(&pdev->dev, "failed get reset control: %d\n",
+ ret);
+ return ret;
+ }
+ }
+
+ /* Get IRAM pool from device tree or platform data */
+ pool = of_get_named_gen_pool(np, "iram", 0);
+ if (!pool && pdata)
+ pool = dev_get_gen_pool(pdata->iram_dev);
+ if (!pool) {
+ dev_err(&pdev->dev, "iram pool not available\n");
+ return -ENOMEM;
+ }
+ dev->iram_pool = pool;
+
+ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+ if (ret)
+ return ret;
+
+ mutex_init(&dev->dev_mutex);
+ mutex_init(&dev->coda_mutex);
+
+ pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
+
+ if (of_id) {
+ dev->devtype = of_id->data;
+ } else if (pdev_id) {
+ dev->devtype = &coda_devdata[pdev_id->driver_data];
+ } else {
+ v4l2_device_unregister(&dev->v4l2_dev);
+ return -EINVAL;
+ }
+
+ dev->debugfs_root = debugfs_create_dir("coda", NULL);
+ if (!dev->debugfs_root)
+ dev_warn(&pdev->dev, "failed to create debugfs root\n");
+
+ /* allocate auxiliary per-device buffers for the BIT processor */
+ if (dev->devtype->product == CODA_DX6) {
+ ret = coda_alloc_aux_buf(dev, &dev->workbuf,
+ dev->devtype->workbuf_size, "workbuf",
+ dev->debugfs_root);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to allocate work buffer\n");
+ v4l2_device_unregister(&dev->v4l2_dev);
+ return ret;
+ }
+ }
+
+ if (dev->devtype->tempbuf_size) {
+ ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
+ dev->devtype->tempbuf_size, "tempbuf",
+ dev->debugfs_root);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to allocate temp buffer\n");
+ v4l2_device_unregister(&dev->v4l2_dev);
+ return ret;
+ }
+ }
+
+ dev->iram.size = dev->devtype->iram_size;
+ dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
+ &dev->iram.paddr);
+ if (!dev->iram.vaddr) {
+ dev_warn(&pdev->dev, "unable to alloc iram\n");
+ } else {
+ dev->iram.blob.data = dev->iram.vaddr;
+ dev->iram.blob.size = dev->iram.size;
+ dev->iram.dentry = debugfs_create_blob("iram", 0644,
+ dev->debugfs_root,
+ &dev->iram.blob);
+ }
+
+ dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
+ if (!dev->workqueue) {
+ dev_err(&pdev->dev, "unable to alloc workqueue\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, dev);
+
+ /*
+ * Start activated so we can directly call coda_hw_init in
+ * coda_fw_callback regardless of whether CONFIG_PM_RUNTIME is
+ * enabled or whether the device is associated with a PM domain.
+ */
+ pm_runtime_get_noresume(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+
+ return coda_firmware_request(dev);
+}
+
+static int coda_remove(struct platform_device *pdev)
+{
+ struct coda_dev *dev = platform_get_drvdata(pdev);
+
+ video_unregister_device(&dev->vfd[0]);
+ video_unregister_device(&dev->vfd[1]);
+ if (dev->m2m_dev)
+ v4l2_m2m_release(dev->m2m_dev);
+ pm_runtime_disable(&pdev->dev);
+ if (dev->alloc_ctx)
+ vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ destroy_workqueue(dev->workqueue);
+ if (dev->iram.vaddr)
+ gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
+ dev->iram.size);
+ coda_free_aux_buf(dev, &dev->codebuf);
+ coda_free_aux_buf(dev, &dev->tempbuf);
+ coda_free_aux_buf(dev, &dev->workbuf);
+ debugfs_remove_recursive(dev->debugfs_root);
+ return 0;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+static int coda_runtime_resume(struct device *dev)
+{
+ struct coda_dev *cdev = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (dev->pm_domain && cdev->codebuf.vaddr) {
+ ret = coda_hw_init(cdev);
+ if (ret)
+ v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
+ }
+
+ return ret;
+}
+#endif
+
+static const struct dev_pm_ops coda_pm_ops = {
+ SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
+};
+
+static struct platform_driver coda_driver = {
+ .probe = coda_probe,
+ .remove = coda_remove,
+ .driver = {
+ .name = CODA_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(coda_dt_ids),
+ .pm = &coda_pm_ops,
+ },
+ .id_table = coda_platform_ids,
+};
+
+module_platform_driver(coda_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
+MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");

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