@@ -306,6 +306,7 @@ config MACH_IMX27_VISSTRIM_M10
bool "Vista Silicon i.MX27 Visstrim_m10"
select SOC_IMX27
select IMX_HAVE_PLATFORM_GPIO_KEYS
+ select IMX_HAVE_PLATFORM_CODA
select IMX_HAVE_PLATFORM_IMX_I2C
select IMX_HAVE_PLATFORM_IMX_SSI
select IMX_HAVE_PLATFORM_IMX_UART
@@ -17,6 +17,10 @@ extern const struct imx_fsl_usb2_udc_data imx27_fsl_usb2_udc_data;
#define imx27_add_fsl_usb2_udc(pdata) \
imx_add_fsl_usb2_udc(&imx27_fsl_usb2_udc_data, pdata)
+extern const struct imx_imx27_coda_data imx27_coda_data;
+#define imx27_add_coda(pdata) \
+ imx_add_imx27_coda(&imx27_coda_data, pdata)
+
extern const struct imx_imx2_wdt_data imx27_imx2_wdt_data;
#define imx27_add_imx2_wdt(pdata) \
imx_add_imx2_wdt(&imx27_imx2_wdt_data)
@@ -15,7 +15,11 @@ config IMX_HAVE_PLATFORM_GPIO_KEYS
config IMX_HAVE_PLATFORM_IMX21_HCD
bool
-
+
+config IMX_HAVE_PLATFORM_IMX27_CODA
+ bool
+ default y if SOC_IMX27
+
config IMX_HAVE_PLATFORM_IMX2_WDT
bool
@@ -4,6 +4,7 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_FSL_USB2_UDC) += platform-fsl-usb2-udc.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_GPIO_KEYS) += platform-gpio_keys.o
obj-y += platform-gpio-mxc.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX21_HCD) += platform-imx21-hcd.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX27_CODA) += platform-imx27-coda.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX2_WDT) += platform-imx2-wdt.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_IMXDI_RTC) += platform-imxdi_rtc.o
obj-y += platform-imx-dma.o
new file mode 100644
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 Vista Silicon
+ * Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+#include <linux/coda_codec.h>
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_imx27_coda_data imx27_coda_data __initconst = {
+ .iobase = MX27_VPU_BASE_ADDR,
+ .iosize = SZ_512,
+ .irq = MX27_INT_VPU,
+};
+#endif
+
+struct platform_device *__init imx_add_imx27_coda(
+ const struct imx_imx27_coda_data *data,
+ const struct coda_platform_data *pdata)
+{
+ struct resource res[] = {
+ {
+ .start = data->iobase,
+ .end = data->iobase + data->iosize - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = data->irq,
+ .end = data->irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ return imx_add_platform_device_dmamask("coda", 0, res, 2, pdata,
+ sizeof(*pdata), DMA_BIT_MASK(32));
+}
@@ -83,6 +83,16 @@ struct platform_device *__init imx_add_imx21_hcd(
const struct imx_imx21_hcd_data *data,
const struct mx21_usbh_platform_data *pdata);
+#include <linux/coda_codec.h>
+struct imx_imx27_coda_data {
+ resource_size_t iobase;
+ resource_size_t iosize;
+ resource_size_t irq;
+};
+struct platform_device *__init imx_add_imx27_coda(
+ const struct imx_imx27_coda_data *data,
+ const struct coda_platform_data *pdata);
+
struct imx_imx2_wdt_data {
int id;
resource_size_t iobase;
@@ -1185,6 +1185,24 @@ config VIDEO_MEM2MEM_TESTDEV
This is a virtual test device for the memory-to-memory driver
framework.
+config VIDEO_CODA
+ tristate "Chips&Media Coda multi-standard codec IP"
+ depends on VIDEO_DEV && VIDEO_V4L2
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_MEM2MEM_DEV
+ default n
+ ---help---
+ Coda is a range of video codec IPs that supports
+ H.264, MPEG-4, and other video formats.
+
config VIDEO_SAMSUNG_S5P_G2D
tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P
@@ -108,6 +108,7 @@ obj-$(CONFIG_VIDEO_PMS) += pms.o
obj-$(CONFIG_VIDEO_VINO) += vino.o
obj-$(CONFIG_VIDEO_MEYE) += meye.o
obj-$(CONFIG_VIDEO_SAA7134) += saa7134/
+obj-$(CONFIG_VIDEO_CODA) += coda/
obj-$(CONFIG_VIDEO_CX88) += cx88/
obj-$(CONFIG_VIDEO_EM28XX) += em28xx/
obj-$(CONFIG_VIDEO_TLG2300) += tlg2300/
new file mode 100644
@@ -0,0 +1,3 @@
+obj-$(CONFIG_VIDEO_CODA) := coda.o
+coda-y += coda_main.o
+coda-y += coda_enc.o
new file mode 100644
@@ -0,0 +1,208 @@
+/*
+ * linux/drivers/media/video/coda/coda_common.h
+ *
+ * Copyright (C) 2012 Vista Silicon SL
+ * 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.
+ */
+
+#ifndef _CODA_COMMON_H_
+#define _CODA_COMMON_H_
+
+#include <media/v4l2-device.h>
+#include <asm/io.h>
+#include "coda_regs.h"
+
+extern int coda_debug;
+
+enum {
+ V4L2_M2M_SRC = 0,
+ V4L2_M2M_DST = 1,
+};
+
+enum coda_fmt_type {
+ CODA_FMT_ENC,
+ CODA_FMT_RAW,
+};
+
+enum coda_inst_type {
+ CODA_INST_INVALID,
+ CODA_INST_ENCODER,
+};
+
+enum coda_node_type {
+ CODA_NODE_INVALID = -1,
+ CODA_NODE_ENCODER = 0,
+};
+
+struct coda_fmt {
+ char *name;
+ u32 fourcc;
+ enum coda_fmt_type type;
+};
+
+/* Per-queue, driver-specific private data */
+struct coda_q_data {
+ unsigned int width;
+ unsigned int height;
+ unsigned int sizeimage;
+ struct coda_fmt *fmt;
+};
+
+struct coda_aux_buf {
+ void *vaddr;
+ dma_addr_t paddr;
+};
+
+struct coda_dev {
+ struct v4l2_device v4l2_dev;
+ struct video_device *vfd_enc;
+ struct platform_device *plat_dev;
+
+ void __iomem *regs_base;
+ struct clk *clk;
+ int irq;
+
+ struct coda_aux_buf enc_codebuf;
+ struct coda_aux_buf enc_workbuf;
+ struct coda_aux_buf enc_parabuf;
+
+ spinlock_t irqlock;
+ struct mutex dev_mutex;
+ struct v4l2_m2m_dev *m2m_enc_dev;
+ struct vb2_alloc_ctx *alloc_enc_ctx;
+};
+
+struct coda_enc_params {
+ u8 h264_intra_qp;
+ u8 h264_inter_qp;
+ u8 mpeg4_intra_qp;
+ u8 mpeg4_inter_qp;
+ u8 gop_size;
+ int codec_mode;
+ enum v4l2_mpeg_video_multi_slice_mode slice_mode;
+ u32 framerate;
+ u16 bitrate;
+ u32 slice_max_mb;
+};
+
+struct framebuffer {
+ u32 y;
+ u32 cb;
+ u32 cr;
+};
+
+#define CODA_ENC_OUTPUT_BUFS 4
+#define CODA_ENC_CAPTURE_BUFS 2
+
+/* TODO: some data of this structure can be removed */
+struct coda_enc_runtime {
+ /* old EncOpenParam vpuParams */
+ unsigned int pic_width;
+ unsigned int pic_height;
+ u32 bitstream_buf; /* Seems to be pointer to compressed buffer */
+ u32 bitstream_buf_size;
+ u32 bitstream_format; /* This is probably redundant (q_data->fmt->fourcc) */
+ int initial_delay; /* This is fixed to 0 */
+ int vbv_buffer_size; /* This is fixed to 0 */
+ int enable_autoskip; /* This is fixed to 1 */
+ int intra_refresh; /* This is fixed to 0 */
+ int gamma; /* This is fixed to 4096 */
+ int maxqp; /* This is fixed to 0 */
+ /* old EncInfo structure inside dev->encInfo (pEncInfo->openParam = *pop) */
+ u32 stream_rd_ptr; /* This can be safely removed (use bitstream_buf instead) */
+ u32 stream_buf_start_addr; /* This can be removed (use bitstream_buf instead) */
+ u32 stream_buf_size; /* This can be removed (use bitstream_buf_size) instead */
+ u32 stream_buf_end_addr; /* This can be just dropped */
+ struct framebuffer frame_buf_pool[CODA_ENC_OUTPUT_BUFS]; /* Can be removed if we write to parabuf directly */
+ int initial_info_obtained; /* This probably can be removed (framework protects) */
+ int num_frame_buffers; /* This can be removed */
+ int stride; /* This can be removed later */
+ struct framebuffer source_frame; /* This is only used to pass data to 'encoder_submit' */
+ int quant_param; /* idem */
+ int force_ipicture; /* idem */
+ int skip_picture; /* idem */
+ int all_inter_mb; /* idem */
+ u32 pic_stream_buffer_addr; /* idem */
+ int pic_stream_buffer_size; /* idem */
+ /* headers */
+ char vpu_header[3][64];
+ int vpu_header_size[3];
+};
+
+struct coda_ctx {
+ struct coda_dev *dev;
+ int aborting;
+ int rawstreamon;
+ int compstreamon;
+ u32 isequence;
+ struct coda_q_data q_data[2];
+ enum coda_inst_type inst_type;
+ struct coda_enc_params enc_params;
+ struct coda_enc_runtime runtime;
+ struct v4l2_m2m_ctx *m2m_ctx;
+ struct v4l2_ctrl_handler ctrls;
+ struct v4l2_fh fh;
+ struct vb2_buffer *reference;
+ int gopcounter;
+};
+
+static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
+{
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+ "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+ writel(data, dev->regs_base + reg);
+}
+
+static inline unsigned int coda_read(struct coda_dev *dev, u32 reg)
+{
+ u32 data;
+ data = readl(dev->regs_base + reg);
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+ "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+ return data;
+}
+
+static inline unsigned long coda_isbusy(struct coda_dev *dev) {
+ return coda_read(dev, CODA_REG_BIT_BUSY);
+}
+
+static inline int coda_is_initialized(struct coda_dev *dev) {
+ return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0);
+}
+
+static void coda_command_async(struct coda_dev *dev, int codec_mode,
+ int cmd)
+{
+ coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
+ /* TODO: 0 for the first instance of (encoder-decoder), 1 for the second one
+ *(except firmware which is always 0) */
+ coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
+ coda_write(dev, codec_mode, CODA_REG_BIT_RUN_COD_STD);
+ coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
+}
+
+static int coda_command_sync(struct coda_dev *dev, int codec_mode,
+ int cmd)
+{
+ unsigned int timeout = 100000;
+
+ coda_command_async(dev, codec_mode, cmd);
+ while (coda_isbusy(dev)) {
+ if (timeout-- == 0)
+ return -ETIMEDOUT;
+ };
+ return 0;
+}
+
+struct coda_q_data *get_q_data(struct coda_ctx *ctx,
+ enum v4l2_buf_type type);
+
+#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
+
+#endif
new file mode 100644
@@ -0,0 +1,1130 @@
+/*
+ * CodaDx6 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/irq.h>
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "coda_common.h"
+#include "coda_enc.h"
+
+#define CODA_ENC_MAX_WIDTH 720
+#define CODA_ENC_MAX_HEIGHT 576
+#define CODA_ENC_MAX_FRAME_SIZE 0x90000
+#define FMO_SLICE_SAVE_BUF_SIZE (32)
+
+#define MIN_W 176
+#define MIN_H 144
+#define MAX_W 720
+#define MAX_H 576
+
+#define S_ALIGN 1 /* multiple of 2 */
+#define W_ALIGN 1 /* multiple of 2 */
+#define H_ALIGN 1 /* multiple of 2 */
+
+static struct coda_fmt formats[] = {
+ {
+ .name = "YUV 4:2:0 Planar",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .type = CODA_FMT_RAW,
+ },
+ {
+ .name = "H264 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_H264,
+ .type = CODA_FMT_ENC,
+ },
+ {
+ .name = "MPEG4 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_MPEG4,
+ .type = CODA_FMT_ENC,
+ },
+};
+
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+static struct coda_fmt *find_format(struct v4l2_format *f)
+{
+ struct coda_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < NUM_FORMATS; k++) {
+ fmt = &formats[k];
+ if (fmt->fourcc == f->fmt.pix.pixelformat)
+ break;
+ }
+
+ if (k == NUM_FORMATS)
+ return NULL;
+
+ return &formats[k];
+}
+
+/*
+ * V4L2 ioctl() operations.
+ */
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ strncpy(cap->driver, CODA_ENC_NAME, sizeof(cap->driver) - 1);
+ strncpy(cap->card, CODA_ENC_NAME, sizeof(cap->card) - 1);
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT
+ | V4L2_CAP_STREAMING;
+
+ return 0;
+}
+
+static int enum_fmt(struct v4l2_fmtdesc *f, enum coda_fmt_type type)
+{
+ struct coda_fmt *fmt;
+ int i, num = 0;
+
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].type == type) {
+ if (num == f->index)
+ break;
+ ++num;
+ }
+ }
+
+ if (i < NUM_FORMATS) {
+ fmt = &formats[i];
+ strlcpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ return 0;
+ }
+
+ /* Format not found */
+ return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return enum_fmt(f, CODA_FMT_ENC);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return enum_fmt(f, CODA_FMT_RAW);
+}
+
+static int vidioc_g_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+{
+ struct vb2_queue *vq;
+ struct coda_q_data *q_data;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+ if (!vq)
+ return -EINVAL;
+
+ q_data = get_q_data(ctx, f->type);
+
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ f->fmt.pix.pixelformat = q_data->fmt->fourcc;
+ if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) {
+ f->fmt.pix.width = q_data->width;
+ f->fmt.pix.height = q_data->height;
+ f->fmt.pix.bytesperline = q_data->width * 3 / 2;
+ } else { /* encoded formats h.264/mpeg4 */
+ f->fmt.pix.width = 0;
+ f->fmt.pix.height = 0;
+ f->fmt.pix.bytesperline = q_data->sizeimage;
+ }
+ f->fmt.pix.sizeimage = q_data->sizeimage;
+
+ return 0;
+}
+
+static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ return vidioc_g_fmt(fh_to_ctx(priv), f);
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ return vidioc_g_fmt(fh_to_ctx(priv), f);
+}
+
+static int vidioc_try_fmt(struct v4l2_format *f)
+{
+ enum v4l2_field field;
+
+ if (!find_format(f))
+ return -EINVAL;
+
+ 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;
+
+ if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) {
+ 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);
+ f->fmt.pix.bytesperline = f->fmt.pix.width * 3 / 2;
+ f->fmt.pix.sizeimage = f->fmt.pix.height *
+ f->fmt.pix.bytesperline;
+ } else { /*encoded formats h.264/mpeg4 */
+ f->fmt.pix.bytesperline = CODA_ENC_MAX_FRAME_SIZE;
+ f->fmt.pix.sizeimage = CODA_ENC_MAX_FRAME_SIZE;
+ }
+
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_fmt *fmt;
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ fmt = find_format(f);
+ if (!fmt || !(fmt->type == CODA_FMT_ENC)) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Fourcc format (0x%08x) invalid.\n",
+ f->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ return vidioc_try_fmt(f);
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct coda_fmt *fmt;
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ fmt = find_format(f);
+ if (!fmt || !(fmt->type == CODA_FMT_RAW)) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Fourcc format (0x%08x) invalid.\n",
+ f->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ return vidioc_try_fmt(f);
+}
+
+static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+{
+ struct coda_q_data *q_data;
+ struct vb2_queue *vq;
+ int ret;
+
+ vq = v4l2_m2m_get_vq(ctx->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;
+ }
+
+ ret = vidioc_try_fmt(f);
+ if (ret)
+ return ret;
+
+ q_data->fmt = find_format(f);
+ if (q_data->fmt->fourcc == V4L2_PIX_FMT_YUV420) {
+ q_data->width = f->fmt.pix.width;
+ q_data->height = f->fmt.pix.height;
+ q_data->sizeimage = q_data->width * q_data->height * 3 / 2;
+ } else { /* encoded format h.264/mpeg-4 */
+ q_data->sizeimage = CODA_ENC_MAX_FRAME_SIZE;
+ }
+
+ 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->fmt->fourcc);
+
+ return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ int ret;
+
+ ret = vidioc_try_fmt_vid_cap(file, fh_to_ctx(priv), f);
+ if (ret)
+ return ret;
+
+ return vidioc_s_fmt(fh_to_ctx(priv), f);
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ int ret;
+
+ ret = vidioc_try_fmt_vid_out(file, fh_to_ctx(priv), f);
+ if (ret)
+ return ret;
+
+ return vidioc_s_fmt(fh_to_ctx(priv), f);
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ int ret;
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ ret = v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+ return ret;
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+int vidioc_s_parm(struct file *file, void *priv, struct v4l2_streamparm *a)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ if (a->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (a->parm.output.timeperframe.numerator != 1) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "FPS numerator must be 1\n");
+ return -EINVAL;
+ }
+ ctx->enc_params.framerate =
+ a->parm.output.timeperframe.denominator;
+ } else {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Setting FPS is only possible for the output queue\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int vidioc_g_parm(struct file *file, void *priv, struct v4l2_streamparm *a)
+{
+ struct coda_ctx *ctx = fh_to_ctx(priv);
+
+ if (a->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ a->parm.output.timeperframe.denominator =
+ ctx->enc_params.framerate;
+ a->parm.output.timeperframe.numerator = 1;
+ } else {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Getting FPS is only possible for the output queue\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops coda_enc_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+
+ .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+ .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
+ .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
+
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+
+ .vidioc_s_parm = vidioc_s_parm,
+ .vidioc_g_parm = vidioc_g_parm,
+};
+
+const struct v4l2_ioctl_ops *get_enc_v4l2_ioctl_ops(void)
+{
+ return &coda_enc_ioctl_ops;
+}
+
+/*
+ * Mem-to-mem operations.
+ */
+
+int coda_enc_isr(struct coda_dev *dev)
+{
+ struct coda_ctx *ctx;
+ struct vb2_buffer *src_buf, *dst_buf, *tmp_buf;
+
+ ctx = v4l2_m2m_get_curr_priv(dev->m2m_enc_dev);
+ if (ctx == NULL) {
+ v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n");
+ return IRQ_HANDLED;
+ }
+
+ if (ctx->aborting) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "task has been aborted\n");
+ return IRQ_HANDLED;
+ }
+
+ if (coda_isbusy(ctx->dev)) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "coda is still busy!!!!\n");
+ return IRQ_NONE;
+ }
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+
+
+ /* coda_encoder_get_results */
+ {
+ u32 tmp1, tmp2;
+
+ coda_read(dev, CODA_RET_ENC_PIC_TYPE);
+ tmp1 = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
+ tmp2 = coda_read(dev, CODA_REG_BIT_WR_PTR_0);
+ /* Calculate bytesused field */
+ if (dst_buf->v4l2_buf.sequence == 0) {
+ dst_buf->v4l2_planes[0].bytesused = (tmp2 - tmp1) + ctx->runtime.vpu_header_size[0] +
+ ctx->runtime.vpu_header_size[1] +
+ ctx->runtime.vpu_header_size[2];
+ } else {
+ dst_buf->v4l2_planes[0].bytesused = (tmp2 - tmp1);
+ }
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n", tmp2-tmp1);
+ coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
+ coda_read(dev, CODA_RET_ENC_PIC_FLAG);
+ }
+
+ if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
+ dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
+ dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
+ } else {
+ dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
+ dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
+ }
+
+ /* Free previous reference picture if available */
+ if (ctx->reference) {
+ v4l2_m2m_buf_done(ctx->reference, VB2_BUF_STATE_DONE);
+ ctx->reference = NULL;
+ }
+
+ /*
+ * For the last frame of the gop we don't need to save
+ * a reference picture.
+ */
+ v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+ tmp_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ if (ctx->gopcounter == 0) {
+ v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
+ } else {
+ ctx->reference = tmp_buf;
+ }
+
+ v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
+
+ ctx->gopcounter--;
+ if (ctx->gopcounter < 0)
+ ctx->gopcounter = ctx->enc_params.gop_size - 1;
+
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+ "job finished: encoding frame (%d) (%s)\n",
+ dst_buf->v4l2_buf.sequence,
+ (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
+ "KEYFRAME" : "PFRAME");
+
+ v4l2_m2m_job_finish(ctx->dev->m2m_enc_dev, ctx->m2m_ctx);
+
+ return IRQ_HANDLED;
+}
+
+static void coda_device_run(void *m2m_priv)
+{
+ struct coda_ctx *ctx = m2m_priv;
+ struct coda_q_data *q_data_src, *q_data_dst;
+ struct vb2_buffer *src_buf, *dst_buf;
+ struct coda_dev *dev = ctx->dev;
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
+
+ src_buf->v4l2_buf.sequence = ctx->isequence;
+ dst_buf->v4l2_buf.sequence = ctx->isequence;
+ ctx->isequence++;
+
+ /*
+ * Workaround coda firmware BUG that only marks the first
+ * frame as IDR. This is a problem for some decoders that can't
+ * recover when a frame is lost.
+ */
+ if (src_buf->v4l2_buf.sequence % ctx->enc_params.gop_size) {
+ src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
+ src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
+ } else {
+ src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
+ src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
+ }
+
+ ctx->runtime.source_frame.y = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+ ctx->runtime.source_frame.cb = ctx->runtime.source_frame.y +
+ q_data_src->width * q_data_src->height;
+ ctx->runtime.source_frame.cr = ctx->runtime.source_frame.cb +
+ q_data_src->width / 2 * q_data_src->height / 2;
+
+ if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
+ ctx->runtime.force_ipicture = 1;
+ if (ctx->enc_params.codec_mode == CODA_MODE_ENCODE_H264) {
+ ctx->runtime.quant_param = ctx->enc_params.h264_intra_qp;
+ } else {
+ ctx->runtime.quant_param = ctx->enc_params.mpeg4_intra_qp;
+ }
+ } else {
+ ctx->runtime.force_ipicture = 0;
+ if (ctx->enc_params.codec_mode == CODA_MODE_ENCODE_H264) {
+ ctx->runtime.quant_param = ctx->enc_params.h264_inter_qp;
+ } else {
+ ctx->runtime.quant_param = ctx->enc_params.mpeg4_inter_qp;
+ }
+ }
+ ctx->runtime.skip_picture = 0;
+ ctx->runtime.all_inter_mb = 0;
+
+ /*
+ * Copy headers at the beginning of the first frame for H.264 only.
+ * In MPEG4 they are already copied by the coda.
+ */
+ if (src_buf->v4l2_buf.sequence == 0) {
+ ctx->runtime.pic_stream_buffer_addr =
+ vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
+ ctx->runtime.vpu_header_size[0] +
+ ctx->runtime.vpu_header_size[1] +
+ ctx->runtime.vpu_header_size[2];
+ ctx->runtime.pic_stream_buffer_size = CODA_ENC_MAX_FRAME_SIZE -
+ ctx->runtime.vpu_header_size[0] -
+ ctx->runtime.vpu_header_size[1] -
+ ctx->runtime.vpu_header_size[2];
+ memcpy(vb2_plane_vaddr(dst_buf, 0),
+ &ctx->runtime.vpu_header[0][0], ctx->runtime.vpu_header_size[0]);
+ memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->runtime.vpu_header_size[0],
+ &ctx->runtime.vpu_header[1][0], ctx->runtime.vpu_header_size[1]);
+ memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->runtime.vpu_header_size[0] + ctx->runtime.vpu_header_size[1],
+ &ctx->runtime.vpu_header[2][0], ctx->runtime.vpu_header_size[2]);
+ } else {
+ ctx->runtime.pic_stream_buffer_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+ ctx->runtime.pic_stream_buffer_size = CODA_ENC_MAX_FRAME_SIZE;
+ }
+
+ /* coda_encoder_submit */
+ {
+ coda_write(dev, 0, CODA_CMD_ENC_PIC_ROT_MODE);
+ coda_write(dev, ctx->runtime.quant_param, CODA_CMD_ENC_PIC_QS);
+
+ if (ctx->runtime.skip_picture) {
+ coda_write(dev, 1, CODA_CMD_ENC_PIC_OPTION);
+ } else {
+ coda_write(dev, ctx->runtime.source_frame.y, CODA_CMD_ENC_PIC_SRC_ADDR_Y);
+ coda_write(dev, ctx->runtime.source_frame.cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB);
+ coda_write(dev, ctx->runtime.source_frame.cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR);
+ coda_write(dev, (ctx->runtime.all_inter_mb << 5) | (ctx->runtime.force_ipicture << 1 & 0x2), CODA_CMD_ENC_PIC_OPTION);
+ }
+
+ coda_write(dev, ctx->runtime.pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
+ coda_write(dev, ctx->runtime.pic_stream_buffer_size / 1024, CODA_CMD_ENC_PIC_BB_SIZE);
+ coda_command_async(dev, ctx->enc_params.codec_mode, CODA_COMMAND_PIC_RUN);
+ }
+}
+
+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.
+ */
+ if (!(v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) >= 1) ||
+ !(v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) >= 1)) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: not enough video buffers.\n");
+ return 0;
+ }
+
+ /* For P frames a reference picture is needed too */
+ if ((ctx->gopcounter != (ctx->enc_params.gop_size - 1)) && (!ctx->reference)) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: reference picture not available.\n");
+ return 0;
+ }
+
+ if (coda_isbusy(ctx->dev)) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "not ready: coda is still busy.\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;
+ struct coda_dev *dev = ctx->dev;
+
+ ctx->aborting = 1;
+
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+ "Aborting task\n");
+
+ v4l2_m2m_job_finish(dev->m2m_enc_dev, ctx->m2m_ctx);
+}
+
+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 struct v4l2_m2m_ops coda_enc_m2m_ops = {
+ .device_run = coda_device_run,
+ .job_ready = coda_job_ready,
+ .job_abort = coda_job_abort,
+ .lock = coda_lock,
+ .unlock = coda_unlock,
+};
+
+struct v4l2_m2m_ops *get_enc_m2m_ops(void)
+{
+ return &coda_enc_m2m_ops;
+}
+
+void set_enc_default_params(struct coda_ctx *ctx) {
+ ctx->enc_params.codec_mode = CODA_MODE_INVALID;
+ ctx->enc_params.framerate = 30;
+ ctx->reference = NULL;
+ ctx->aborting = 0;
+
+ /* Default formats for output and input queues */
+ ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0];
+ ctx->q_data[V4L2_M2M_DST].fmt = &formats[1];
+}
+
+/*
+ * Queue operations
+ */
+static int coda_enc_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);
+ unsigned int size;
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ *nbuffers = CODA_ENC_OUTPUT_BUFS;
+ if (fmt)
+ size = fmt->fmt.pix.width *
+ fmt->fmt.pix.height * 3 / 2;
+ else
+ size = CODA_ENC_MAX_WIDTH *
+ CODA_ENC_MAX_HEIGHT * 3 / 2;
+ } else {
+ *nbuffers = CODA_ENC_CAPTURE_BUFS;
+ size = CODA_ENC_MAX_FRAME_SIZE;
+ }
+
+ *nplanes = 1;
+ sizes[0] = size;
+
+ alloc_ctxs[0] = ctx->dev->alloc_enc_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_enc_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;
+ }
+
+ vb2_set_plane_payload(vb, 0, q_data->sizeimage);
+
+ return 0;
+}
+
+static void coda_enc_buf_queue(struct vb2_buffer *vb)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+static void coda_wait_prepare(struct vb2_queue *q)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ coda_unlock(ctx);
+}
+
+static void coda_wait_finish(struct vb2_queue *q)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ coda_lock(ctx);
+}
+
+static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ struct coda_dev *dev = ctx->dev;
+
+ if (count < 1)
+ return -EINVAL;
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ ctx->rawstreamon = 1;
+ } else {
+ ctx->compstreamon = 1;
+ }
+
+ if (ctx->rawstreamon & ctx->compstreamon) {
+ struct coda_q_data *q_data_src, *q_data_dst;
+ struct vb2_buffer *buf;
+ struct vb2_queue *vq;
+ u32 value;
+ int i = 0;
+
+ ctx->gopcounter = ctx->enc_params.gop_size - 1;
+
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ ctx->runtime.pic_width = q_data_src->width;
+ ctx->runtime.pic_height = q_data_src->height;
+ buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ ctx->runtime.bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
+ q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ ctx->runtime.bitstream_buf_size = q_data_dst->sizeimage;
+ ctx->runtime.bitstream_format = q_data_dst->fmt->fourcc;
+ ctx->runtime.initial_delay = 0;
+ ctx->runtime.vbv_buffer_size = 0;
+ ctx->runtime.enable_autoskip = 1;
+ ctx->runtime.intra_refresh = 0;
+ ctx->runtime.gamma = 4096;
+ ctx->runtime.maxqp = 0;
+
+ if (!coda_is_initialized(dev)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "coda is not initialized.\n");
+ return -EFAULT;
+ }
+
+ /* coda_encoder_init */
+ {
+
+ if (ctx->runtime.bitstream_format == V4L2_PIX_FMT_H264) {
+ ctx->enc_params.codec_mode = CODA_MODE_ENCODE_H264;
+ } else if (ctx->runtime.bitstream_format == V4L2_PIX_FMT_MPEG4) {
+ ctx->enc_params.codec_mode = CODA_MODE_ENCODE_M4S2;
+ }
+
+ ctx->runtime.stream_rd_ptr = ctx->runtime.bitstream_buf;
+ ctx->runtime.stream_buf_start_addr = ctx->runtime.bitstream_buf;
+ ctx->runtime.stream_buf_size = ctx->runtime.bitstream_buf_size;
+ ctx->runtime.stream_buf_end_addr = ctx->runtime.bitstream_buf +
+ ctx->runtime.bitstream_buf_size;
+ ctx->runtime.initial_info_obtained = 0;
+
+ coda_write(dev, ctx->runtime.stream_rd_ptr, CODA_REG_BIT_RD_PTR_0);
+ coda_write(dev, ctx->runtime.stream_buf_start_addr, CODA_REG_BIT_WR_PTR_0);
+ value = coda_read(dev, CODA_REG_BIT_STREAM_CTRL);
+ value &= 0xffe7;
+ value |= 3 << 3;
+ coda_write(dev, value, CODA_REG_BIT_STREAM_CTRL);
+ }
+
+ /* walk the src ready list and store buffer phys addresses */
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ for (i = 0; i < vq->num_buffers; i++) {
+ buf = vq->bufs[i];
+ ctx->runtime.frame_buf_pool[i].y = vb2_dma_contig_plane_dma_addr(buf, 0);
+ ctx->runtime.frame_buf_pool[i].cb = ctx->runtime.frame_buf_pool[i].y +
+ q_data_src->width * q_data_src->height;
+ ctx->runtime.frame_buf_pool[i].cr = ctx->runtime.frame_buf_pool[i].cb +
+ q_data_src->width / 2 * q_data_src->height / 2;
+ }
+ ctx->runtime.num_frame_buffers = vq->num_buffers;
+ ctx->runtime.stride = q_data_src->width;
+
+ /* coda_encoder_configure */
+ {
+ u32 data;
+
+ coda_write(dev, 0xFFFF4C00, CODA_REG_BIT_SEARCH_RAM_BASE_ADDR);
+
+ /* Could set rotation here if needed */
+ data = (ctx->runtime.pic_width & CODA_PICWIDTH_MASK) << CODA_PICWIDTH_OFFSET;
+ data |= (ctx->runtime.pic_height & CODA_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_SRC_SIZE);
+ coda_write(dev, ctx->enc_params.framerate, CODA_CMD_ENC_SEQ_SRC_F_RATE);
+
+ if (ctx->runtime.bitstream_format == V4L2_PIX_FMT_MPEG4) {
+ coda_write(dev, CODA_ENCODE_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
+ data = (0 & CODA_MP4PARAM_VERID_MASK) << CODA_MP4PARAM_VERID_OFFSET;
+ data |= (0 & CODA_MP4PARAM_INTRADCVLCTHR_MASK) << CODA_MP4PARAM_INTRADCVLCTHR_OFFSET;
+ data |= (0 & CODA_MP4PARAM_REVERSIBLEVLCENABLE_MASK) << CODA_MP4PARAM_REVERSIBLEVLCENABLE_OFFSET;
+ data |= 0 & CODA_MP4PARAM_DATAPARTITIONENABLE_MASK;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_MP4_PARA);
+ } else if (ctx->runtime.bitstream_format == V4L2_PIX_FMT_H264) {
+ coda_write(dev, CODA_ENCODE_H264, CODA_CMD_ENC_SEQ_COD_STD);
+ data = (0 & CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET;
+ data |= (0 & CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET;
+ data |= (0 & CODA_264PARAM_DISABLEDEBLK_MASK) << CODA_264PARAM_DISABLEDEBLK_OFFSET;
+ data |= (0 & CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_MASK) << CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET;
+ data |= 0 & CODA_264PARAM_CHROMAQPOFFSET_MASK;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_264_PARA);
+ }
+
+ data = (ctx->enc_params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
+ data |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
+ if (ctx->enc_params.slice_mode == V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB)
+ data |= 1 & CODA_SLICING_MODE_MASK;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_SLICE_MODE);
+ data = ctx->enc_params.gop_size & CODA_GOP_SIZE_MASK;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_GOP_SIZE);
+
+ if (ctx->enc_params.bitrate) {
+ /* Rate control enabled */
+ data = ((!ctx->runtime.enable_autoskip) & CODA_RATECONTROL_AUTOSKIP_MASK) << CODA_RATECONTROL_AUTOSKIP_OFFSET;
+ data |= (ctx->runtime.initial_delay & CODA_RATECONTROL_INITIALDELAY_MASK) << CODA_RATECONTROL_INITIALDELAY_OFFSET;
+ data |= (ctx->enc_params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET;
+ data |= 1 & CODA_RATECONTROL_ENABLE_MASK;
+ } else {
+ data = 0;
+ }
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_RC_PARA);
+
+ coda_write(dev, ctx->runtime.vbv_buffer_size, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
+ coda_write(dev, ctx->runtime.intra_refresh, CODA_CMD_ENC_SEQ_INTRA_REFRESH);
+
+ coda_write(dev, ctx->runtime.stream_buf_start_addr, CODA_CMD_ENC_SEQ_BB_START);
+ coda_write(dev, ctx->runtime.stream_buf_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
+
+ if (ctx->runtime.maxqp) {
+ /* adjust qp if they are above the maximum */
+ if ((ctx->runtime.bitstream_format == V4L2_PIX_FMT_MPEG4) && (ctx->runtime.maxqp > 31)) ctx->runtime.maxqp = 31;
+ if ((ctx->runtime.bitstream_format == V4L2_PIX_FMT_H264) && (ctx->runtime.maxqp > 51)) ctx->runtime.maxqp = 51;
+ data = (ctx->runtime.maxqp & CODA_QPMAX_MASK) << CODA_QPMAX_OFFSET;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_RC_QP_MAX);
+ }
+
+ if (ctx->runtime.gamma) {
+ /* set default gamma if not set */
+ if (ctx->runtime.gamma > 32768) ctx->runtime.gamma = 32768;
+ data = (ctx->runtime.gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_RC_GAMMA);
+ }
+
+ data = (ctx->runtime.gamma > 0) << CODA_OPTION_GAMMA_OFFSET;
+ data |= (ctx->runtime.maxqp > 0) << CODA_OPTION_LIMITQP_OFFSET;
+ data |= (0 & CODA_OPTION_SLICEREPORT_MASK) << CODA_OPTION_SLICEREPORT_OFFSET;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_OPTION);
+
+ if (ctx->enc_params.codec_mode == CODA_MODE_ENCODE_H264) {
+ data = (FMO_SLICE_SAVE_BUF_SIZE << 7);
+ data |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET;
+ data |= 0 & CODA_FMOPARAM_SLICENUM_MASK;
+ coda_write(dev, data, CODA_CMD_ENC_SEQ_FMO);
+ }
+
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_SEQ_INIT)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0)
+ return -EFAULT;
+
+ /* Let the codec know the addresses of the frame buffers */
+ for (i = 0; i < ctx->runtime.num_frame_buffers; i++) {
+ u32 *p;
+
+ p = ctx->dev->enc_parabuf.vaddr;
+ p[i * 3] = ctx->runtime.frame_buf_pool[i].y;
+ p[i * 3 + 1] = ctx->runtime.frame_buf_pool[i].cb;
+ p[i * 3 + 2] = ctx->runtime.frame_buf_pool[i].cr;
+ }
+ coda_write(dev, ctx->runtime.num_frame_buffers, CODA_CMD_SET_FRAME_BUF_NUM);
+ coda_write(dev, ctx->runtime.stride, CODA_CMD_SET_FRAME_BUF_STRIDE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_SET_FRAME_BUF)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ ctx->runtime.initial_info_obtained = 1;
+ }
+
+ /* Save stream headers */
+ buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ if (ctx->runtime.bitstream_format == V4L2_PIX_FMT_H264) {
+ /* Get SPS in the first frame and copy it to an intermediate buffer TODO: copy directly */
+ coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+ coda_write(dev, ctx->runtime.bitstream_buf_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+ coda_write(dev, CODA_HEADER_H264_SPS, CODA_CMD_ENC_HEADER_CODE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_ENCODE_HEADER)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+ return -ETIMEDOUT;
+ }
+ ctx->runtime.vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR_0) -
+ coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+ memcpy(&ctx->runtime.vpu_header[0][0], vb2_plane_vaddr(buf, 0), ctx->runtime.vpu_header_size[0]);
+
+ /* Get PPS in the first frame and copy it to an intermediate buffer TODO: copy directly*/
+ coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+ coda_write(dev, ctx->runtime.bitstream_buf_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+ coda_write(dev, CODA_HEADER_H264_PPS, CODA_CMD_ENC_HEADER_CODE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_ENCODE_HEADER)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+ return -ETIMEDOUT;
+ }
+ ctx->runtime.vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR_0) -
+ coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+ memcpy(&ctx->runtime.vpu_header[1][0], vb2_plane_vaddr(buf, 0), ctx->runtime.vpu_header_size[1]);
+ ctx->runtime.vpu_header_size[2] = 0;
+ } else { /* MPEG4 */
+ /* Get VOS in the first frame and copy it to an intermediate buffer TODO: copy directly */
+ coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+ coda_write(dev, ctx->runtime.bitstream_buf_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+ coda_write(dev, CODA_HEADER_MP4V_VOS, CODA_CMD_ENC_HEADER_CODE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_ENCODE_HEADER)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+ return -ETIMEDOUT;
+ }
+ ctx->runtime.vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR_0) -
+ coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+ memcpy(&ctx->runtime.vpu_header[0][0], vb2_plane_vaddr(buf, 0), ctx->runtime.vpu_header_size[0]);
+
+ coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+ coda_write(dev, ctx->runtime.bitstream_buf_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+ coda_write(dev, CODA_HEADER_MP4V_VIS, CODA_CMD_ENC_HEADER_CODE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_ENCODE_HEADER)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n");
+ return -ETIMEDOUT;
+ }
+ ctx->runtime.vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR_0) -
+ coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+ memcpy(&ctx->runtime.vpu_header[1][0], vb2_plane_vaddr(buf, 0), ctx->runtime.vpu_header_size[1]);
+
+ coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+ coda_write(dev, ctx->runtime.bitstream_buf_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+ coda_write(dev, CODA_HEADER_MP4V_VOL, CODA_CMD_ENC_HEADER_CODE);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_ENCODE_HEADER)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n");
+ return -ETIMEDOUT;
+ }
+ ctx->runtime.vpu_header_size[2] = coda_read(dev, CODA_REG_BIT_WR_PTR_0) -
+ coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+ memcpy(&ctx->runtime.vpu_header[2][0], vb2_plane_vaddr(buf, 0), ctx->runtime.vpu_header_size[2]);
+ }
+ }
+ return 0;
+}
+
+static int coda_stop_streaming(struct vb2_queue *q)
+{
+ struct coda_ctx *ctx = vb2_get_drv_priv(q);
+ struct coda_dev *dev = ctx->dev;
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "%s: output\n", __func__);
+ ctx->rawstreamon = 0;
+ } else {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "%s: capture\n", __func__);
+ ctx->compstreamon = 0;
+ }
+
+ if (!ctx->rawstreamon & !ctx->compstreamon) {
+ v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "%s: sent command 'SEQ_END' to coda\n", __func__);
+ if (coda_command_sync(dev, ctx->enc_params.codec_mode, CODA_COMMAND_SEQ_END)) {
+ v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SEQ_END failed\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ return 0;
+}
+
+static struct vb2_ops coda_enc_qops = {
+ .queue_setup = coda_enc_queue_setup,
+ .buf_prepare = coda_enc_buf_prepare,
+ .buf_queue = coda_enc_buf_queue,
+ .wait_prepare = coda_wait_prepare,
+ .wait_finish = coda_wait_finish,
+ .start_streaming = coda_start_streaming,
+ .stop_streaming = coda_stop_streaming,
+};
+
+struct vb2_ops *get_enc_qops(void)
+{
+ return &coda_enc_qops;
+}
+
+static int coda_enc_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_MPEG_VIDEO_BITRATE:
+ ctx->enc_params.bitrate = ctrl->val / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+ ctx->enc_params.gop_size = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
+ ctx->enc_params.h264_intra_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
+ ctx->enc_params.h264_inter_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
+ ctx->enc_params.mpeg4_intra_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
+ ctx->enc_params.mpeg4_inter_qp = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
+ ctx->enc_params.slice_mode = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
+ ctx->enc_params.slice_max_mb = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
+ break;
+ default:
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Invalid control, id=%d, val=%d\n",
+ ctrl->id, ctrl->val);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static struct v4l2_ctrl_ops coda_enc_ctrl_ops = {
+ .s_ctrl = coda_enc_s_ctrl,
+};
+
+int coda_enc_ctrls_setup(struct coda_ctx *ctx)
+{
+ v4l2_ctrl_handler_init(&ctx->ctrls, 9);
+
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
+ v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
+ V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB, 0,
+ V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB);
+ v4l2_ctrl_new_std(&ctx->ctrls, &coda_enc_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
+ v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_enc_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);
+
+ return v4l2_ctrl_handler_setup(&ctx->ctrls);
+}
new file mode 100644
@@ -0,0 +1,26 @@
+/*
+ * linux/drivers/media/video/coda/coda_enc.h
+ *
+ * Copyright (C) 2012 Vista Silicon SL
+ * 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.
+ */
+
+#ifndef _CODA_ENC_H_
+#define _CODA_ENC_H_
+
+#define CODA_ENC_NAME "coda-enc"
+
+const struct v4l2_ioctl_ops *get_enc_v4l2_ioctl_ops(void);
+struct v4l2_m2m_ops *get_enc_m2m_ops(void);
+void set_enc_default_params(struct coda_ctx *ctx);
+struct vb2_ops *get_enc_qops(void);
+int coda_enc_ctrls_setup(struct coda_ctx *ctx);
+int coda_enc_isr(struct coda_dev *dev);
+
+#endif
new file mode 100644
@@ -0,0 +1,513 @@
+/*
+ * CodaDx6 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/coda_codec.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "coda_common.h"
+#include "coda_regs.h"
+#include "coda_enc.h"
+
+#define CODA_NAME "coda"
+
+#define CODA_FMO_BUF_SIZE 32
+#define CODA_CODE_BUF_SIZE (64 * 1024)
+#define CODA_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
+#define CODA_PARA_BUF_SIZE (10 * 1024)
+#define CODA_ISRAM_SIZE (2048 * 2)
+
+#define CODA_SUPPORTED_PRODUCT_ID 0xf001
+#define CODA_SUPPORTED_MAJOR 2
+#define CODA_SUPPORTED_MINOR 2
+#define CODA_SUPPORTED_RELEASE 5
+
+int coda_debug = 3;
+module_param(coda_debug, int, 0);
+MODULE_PARM_DESC(coda_debug, "Debug level (0-1)");
+
+struct coda_q_data *get_q_data(struct coda_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ switch (type) {
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ return &(ctx->q_data[V4L2_M2M_SRC]);
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return &(ctx->q_data[V4L2_M2M_DST]);
+ default:
+ BUG();
+ }
+ return NULL;
+}
+
+static enum coda_node_type coda_get_node_type(struct file *file)
+{
+ struct video_device *vfd = video_devdata(file);
+
+ if (vfd->index == 0)
+ return CODA_NODE_ENCODER;
+ else /* decoder not supported */
+ return CODA_NODE_INVALID;
+}
+
+static int coda_queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct coda_ctx *ctx = priv;
+ int ret;
+
+ memset(src_vq, 0, sizeof(*src_vq));
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_MMAP;
+ src_vq->drv_priv = ctx;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ if (ctx->inst_type == CODA_INST_ENCODER) {
+ src_vq->ops = get_enc_qops();
+ } else {
+ v4l2_err(&ctx->dev->v4l2_dev, "Instance not supported\n");
+ return -EINVAL;
+ }
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ memset(dst_vq, 0, sizeof(*dst_vq));
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_MMAP;
+ dst_vq->drv_priv = ctx;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ if (ctx->inst_type == CODA_INST_ENCODER) {
+ dst_vq->ops = get_enc_qops();
+ } else {
+ v4l2_err(&ctx->dev->v4l2_dev, "Instance not supported\n");
+ return -EINVAL;
+ }
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+
+ return vb2_queue_init(dst_vq);
+}
+
+static int coda_open(struct file *file)
+{
+ struct coda_dev *dev = video_drvdata(file);
+ struct coda_ctx *ctx = NULL;
+ int ret = 0;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ v4l2_fh_init(&ctx->fh, video_devdata(file));
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+ ctx->dev = dev;
+
+ if (coda_get_node_type(file) == CODA_NODE_ENCODER) {
+ ctx->inst_type = CODA_INST_ENCODER;
+ set_enc_default_params(ctx);
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_enc_dev, ctx,
+ &coda_queue_init);
+ if (IS_ERR(ctx->m2m_ctx)) {
+ int ret = PTR_ERR(ctx->m2m_ctx);
+
+ printk("%s return error (%d)\n", __func__, ret);
+ goto err;
+ }
+ ret = coda_enc_ctrls_setup(ctx);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
+
+ goto err;
+ }
+ } else {
+ v4l2_err(&dev->v4l2_dev, "node type not supported\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ctx->fh.ctrl_handler = &ctx->ctrls;
+
+ clk_enable(dev->clk);
+
+ v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %p\n",
+ ctx);
+
+ return 0;
+
+err:
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+ return ret;
+}
+
+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);
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ v4l2_ctrl_handler_free(&ctx->ctrls);
+ clk_disable(dev->clk);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+
+ return 0;
+}
+
+static unsigned int coda_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct coda_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+}
+
+static int coda_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct coda_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+}
+
+static const struct v4l2_file_operations coda_fops = {
+ .owner = THIS_MODULE,
+ .open = coda_open,
+ .release = coda_release,
+ .poll = coda_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = coda_mmap,
+};
+
+static irqreturn_t coda_irq_handler(int irq, void *data)
+{
+ struct coda_dev *dev = data;
+
+ printk("%s!!\n", __func__);
+
+ /* read status register to attend the IRQ */
+ coda_read(dev, CODA_REG_BIT_INT_STATUS);
+ coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
+ CODA_REG_BIT_INT_CLEAR);
+
+ return coda_enc_isr(dev);
+}
+
+static int coda_hw_init(struct coda_dev *dev, const struct firmware *fw)
+{
+ u16 product, major, minor, release;
+ u32 data;
+ u16 *p;
+ int i;
+
+ clk_enable(dev->clk);
+
+ /* Copy the whole firmware image to the code buffer */
+ memcpy(dev->enc_codebuf.vaddr, fw->data, fw->size);
+ /*
+ * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
+ * This memory seems to be big-endian here, which is weird, since
+ * the internal ARM processor of the coda is little endian.
+ * Data in this SRAM survives a reboot.
+ */
+ p = (u16 *)fw->data;
+ 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);
+ }
+ release_firmware(fw);
+
+ /* Tell the BIT where to find everything it needs */
+ coda_write(dev, dev->enc_workbuf.paddr,
+ CODA_REG_BIT_WORK_BUF_ADDR);
+ coda_write(dev, dev->enc_parabuf.paddr,
+ CODA_REG_BIT_PARA_BUF_ADDR);
+ coda_write(dev, dev->enc_codebuf.paddr,
+ CODA_REG_BIT_CODE_BUF_ADDR);
+ coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
+
+ /* Set default values */
+ coda_write(dev, CODA_STREAM_UNDOCUMENTED,
+ CODA_REG_BIT_STREAM_CTRL);
+ coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
+ 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);
+
+ /* Load firmware */
+ coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
+ if (coda_command_sync(dev, 0, CODA_COMMAND_FIRMWARE_GET)) {
+ v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
+ return -EIO;
+ }
+
+ /* Check we are compatible with the loaded firmware */
+ data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
+ product = CODA_FIRMWARE_PRODUCT(data);
+ major = CODA_FIRMWARE_MAJOR(data);
+ minor = CODA_FIRMWARE_MINOR(data);
+ release = CODA_FIRMWARE_RELEASE(data);
+
+ if ((product != CODA_SUPPORTED_PRODUCT_ID) ||
+ (major != CODA_SUPPORTED_MAJOR) ||
+ (minor != CODA_SUPPORTED_MINOR) ||
+ (release != CODA_SUPPORTED_RELEASE)) {
+ v4l2_err(&dev->v4l2_dev, "Wrong firmware:\n product = 0x%04X\n"
+ " major = %d\n minor = %d\n release = %d\n",
+ product, major, minor, release);
+ return -EINVAL;
+ }
+
+ clk_disable(dev->clk);
+
+ v4l2_info(&dev->v4l2_dev, "Initialized. Fw version: %u.%u.%u.%u", product, major, minor, release);
+
+ return 0;
+}
+
+static void coda_fw_callback(const struct firmware *fw, void *context)
+{
+ struct coda_dev *dev = context;
+ struct platform_device *pdev = dev->plat_dev;
+ struct coda_platform_data *pdata = pdev->dev.platform_data;
+ struct video_device *vfd;
+ int ret;
+
+ if (!fw) {
+ v4l2_err(&dev->v4l2_dev, "firmware request '%s' failed\n",
+ pdata->firmware);
+ return;
+ }
+
+ ret = coda_hw_init(dev, fw);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
+ return;
+ }
+
+ /* Encoder device */
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
+ return;
+ }
+
+ vfd->fops = &coda_fops,
+ vfd->ioctl_ops = get_enc_v4l2_ioctl_ops();
+ vfd->release = video_device_release,
+ vfd->lock = &dev->dev_mutex;
+ vfd->v4l2_dev = &dev->v4l2_dev;
+ snprintf(vfd->name, sizeof(vfd->name), "%s", CODA_ENC_NAME);
+ dev->vfd_enc = vfd;
+ video_set_drvdata(vfd, dev);
+
+ dev->alloc_enc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(dev->alloc_enc_ctx)) {
+ v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
+ goto rel_vdev;
+ }
+
+ dev->m2m_enc_dev = v4l2_m2m_init(get_enc_m2m_ops());
+ if (IS_ERR(dev->m2m_enc_dev)) {
+ v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
+ goto rel_ctx;
+ }
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
+ goto rel_m2m_enc;
+ }
+ v4l2_info(&dev->v4l2_dev, "encoder registered as /dev/video%d\n", vfd->num);
+
+ return;
+
+rel_m2m_enc:
+ v4l2_m2m_release(dev->m2m_enc_dev);
+rel_ctx:
+ vb2_dma_contig_cleanup_ctx(dev->alloc_enc_ctx);
+rel_vdev:
+ video_device_release(vfd);
+
+ return;
+}
+
+static int __devinit coda_probe(struct platform_device *pdev)
+{
+ struct coda_platform_data *pdata;
+ struct coda_dev *dev;
+ struct resource *res;
+ unsigned int bufsize;
+ int ret;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "Invalid platform data\n");
+ return -EINVAL;
+ }
+
+ dev = kzalloc(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);
+
+ dev->plat_dev = pdev;
+ if (!dev->plat_dev) {
+ dev_err(&pdev->dev, "No platform data specified\n");
+ ret = -ENODEV;
+ goto free_dev;
+ }
+
+ dev->clk = clk_get(&pdev->dev, "vpu");
+ if (IS_ERR(dev->clk)) {
+ ret = PTR_ERR(dev->clk);
+ goto free_dev;
+ }
+
+ /* Get memory for physical registers */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get memory region resource\n");
+ ret = -ENOENT;
+ goto free_clk;
+ }
+
+ if (devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res), CODA_NAME) == NULL) {
+ dev_err(&pdev->dev, "failed to request memory region\n");
+ ret = -ENOENT;
+ goto free_clk;
+ }
+ dev->regs_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (!dev->regs_base) {
+ dev_err(&pdev->dev, "failed to ioremap address region\n");
+ ret = -ENOENT;
+ goto free_clk;
+ }
+
+ /* IRQ */
+ dev->irq = platform_get_irq(pdev, 0);
+ if (dev->irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq resource\n");
+ ret = -ENOENT;
+ goto free_clk;
+ }
+
+ if (devm_request_irq(&pdev->dev, dev->irq, coda_irq_handler,
+ 0, CODA_NAME, dev) < 0) {
+ dev_err(&pdev->dev, "failed to request irq\n");
+ ret = -ENOENT;
+ goto free_clk;
+ }
+
+ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+ if (ret)
+ goto free_clk;
+
+ mutex_init(&dev->dev_mutex);
+
+ /* Encoder */
+ /* allocate auxiliary buffers for the BIT processor */
+ bufsize = CODA_CODE_BUF_SIZE + CODA_WORK_BUF_SIZE +
+ CODA_PARA_BUF_SIZE;
+ dev->enc_codebuf.vaddr = dma_alloc_coherent(&pdev->dev, bufsize,
+ &dev->enc_codebuf.paddr,
+ GFP_KERNEL);
+ if (!dev->enc_codebuf.vaddr) {
+ dev_err(&pdev->dev, "failed to allocate aux buffers\n");
+ ret = -ENOMEM;
+ goto free_clk;
+ }
+
+ dev->enc_workbuf.vaddr = dev->enc_codebuf.vaddr + CODA_CODE_BUF_SIZE;
+ dev->enc_workbuf.paddr = dev->enc_codebuf.paddr + CODA_CODE_BUF_SIZE;
+ dev->enc_parabuf.vaddr = dev->enc_workbuf.vaddr + CODA_WORK_BUF_SIZE;
+ dev->enc_parabuf.paddr = dev->enc_workbuf.paddr + CODA_WORK_BUF_SIZE;
+
+
+ return request_firmware_nowait(THIS_MODULE, true, pdata->firmware,
+ &pdev->dev, GFP_KERNEL, dev, coda_fw_callback);
+
+free_clk:
+ clk_put(dev->clk);
+free_dev:
+ kfree(dev);
+ return ret;
+}
+
+static int coda_remove(struct platform_device *pdev)
+{
+ struct coda_dev *dev = platform_get_drvdata(pdev);
+ unsigned int bufsize = CODA_CODE_BUF_SIZE + CODA_WORK_BUF_SIZE +
+ CODA_PARA_BUF_SIZE;
+
+ video_unregister_device(dev->vfd_enc);
+ v4l2_m2m_release(dev->m2m_enc_dev);
+ vb2_dma_contig_cleanup_ctx(dev->alloc_enc_ctx);
+ video_device_release(dev->vfd_enc);
+ dma_free_coherent(&pdev->dev, bufsize, &dev->enc_codebuf.vaddr,
+ dev->enc_codebuf.paddr);
+ clk_put(dev->clk);
+ kfree(dev);
+
+ return 0;
+}
+
+static struct platform_driver coda_driver = {
+ .probe = coda_probe,
+ .remove = __devexit_p(coda_remove),
+ .driver = {
+ .name = CODA_NAME,
+ .owner = THIS_MODULE,
+ /* TODO: pm ops? */
+ },
+};
+
+module_platform_driver(coda_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
+MODULE_DESCRIPTION("CodaDx6 multi-standard codec V4L2 driver");
new file mode 100644
@@ -0,0 +1,223 @@
+/*
+ * linux/drivers/media/video/coda/coda_regs.h
+ *
+ * Copyright (C) 2012 Vista Silicon SL
+ * 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.
+ */
+
+#ifndef _REGS_CODA_H_
+#define _REGS_CODA_H_
+
+/* HW registers */
+#define CODA_REG_BIT_CODE_RUN 0x000
+#define CODA_REG_RUN_ENABLE (1 << 0)
+#define CODA_REG_BIT_CODE_DOWN 0x004
+/* Internal SRAM short address in the BIT */
+#define CODA_DOWN_ADDRESS_SET(x) (((x) & 0xffff) << 16)
+#define CODA_DOWN_DATA_SET(x) ((x) & 0xffff)
+#define CODA_REG_BIT_HOST_IN_REQ 0x008
+#define CODA_REG_BIT_INT_CLEAR 0x00C
+#define CODA_REG_BIT_INT_CLEAR_SET 0x1
+#define CODA_REG_BIT_INT_STATUS 0x010
+#define CODA_REG_BIT_CODE_RESET 0x014
+#define CODA_REG_RESET_ENABLE (1 << 0)
+#define CODA_REG_BIT_CUR_PC 0x018
+
+/* Static SW registers */
+#define CODA_REG_BIT_CODE_BUF_ADDR 0x100
+#define CODA_REG_BIT_WORK_BUF_ADDR 0x104
+#define CODA_REG_BIT_PARA_BUF_ADDR 0x108
+#define CODA_REG_BIT_STREAM_CTRL 0x10C
+#define CODA_STREAM_UNDOCUMENTED (1 << 2)
+ /* Stream Full Empty Check Disable */
+#define CODA_STREAM_CHKDIS_OFFSET (1 << 1)
+ /* Stream Endianess */
+#define CODA_STREAM_ENDIAN_SELECT (1 << 0)
+#define CODA_REG_BIT_FRAME_MEM_CTRL 0x110
+ /* Image Endianess */
+#define CODA_IMAGE_ENDIAN_SELECT (1 << 0)
+#define CODA_REG_BIT_RD_PTR_0 0x120
+#define CODA_REG_BIT_WR_PTR_0 0x124
+#define CODA_REG_BIT_SEARCH_RAM_BASE_ADDR 0x140
+#define CODA_REG_BIT_BUSY 0x160
+#define CODA_REG_BIT_BUSY_FLAG 1
+#define CODA_REG_BIT_RUN_COMMAND 0x164
+#define CODA_COMMAND_SEQ_INIT 1
+#define CODA_COMMAND_SEQ_END 2
+#define CODA_COMMAND_PIC_RUN 3
+#define CODA_COMMAND_SET_FRAME_BUF 4
+#define CODA_COMMAND_ENCODE_HEADER 5
+#define CODA_COMMAND_ENC_PARA_SET 6
+#define CODA_COMMAND_DEC_PARA_SET 7
+#define CODA_COMMAND_DEC_BUF_FLUSH 8
+#define CODA_COMMAND_RC_CHANGE_PARAMETER 9
+#define CODA_COMMAND_FIRMWARE_GET 0xf
+#define CODA_REG_BIT_RUN_INDEX 0x168
+#define CODA_INDEX_SET(x) ((x) & 0x3)
+#define CODA_REG_BIT_RUN_COD_STD 0x16C
+#define CODA_MODE_DECODE_M4S2 0
+#define CODA_MODE_ENCODE_M4S2 1
+#define CODA_MODE_DECODE_H264 2
+#define CODA_MODE_ENCODE_H264 3
+#define CODA_MODE_DECODE_WVC1 4
+#define CODA_MODE_INVALID 0xffff
+#define CODA_REG_BIT_INT_ENABLE 0x170
+#define CODA_INT_INTERRUPT_ENABLE (1 << 3)
+
+/*
+ * Commands' mailbox:
+ * registers with offsets in the range 0x180-0x1D0
+ * have different meaning depending on the command being
+ * issued.
+ */
+/* Encoder Sequence Initialization */
+#define CODA_CMD_ENC_SEQ_BB_START 0x180
+#define CODA_CMD_ENC_SEQ_BB_SIZE 0x184
+#define CODA_CMD_ENC_SEQ_OPTION 0x188
+#define CODA_OPTION_GAMMA_OFFSET 7
+#define CODA_OPTION_GAMMA_MASK 0x01
+#define CODA_OPTION_LIMITQP_OFFSET 6
+#define CODA_OPTION_LIMITQP_MASK 0x01
+#define CODA_OPTION_RCINTRAQP_OFFSET 5
+#define CODA_OPTION_RCINTRAQP_MASK 0x01
+#define CODA_OPTION_FMO_OFFSET 4
+#define CODA_OPTION_FMO_MASK 0x01
+// /* There is no bit 3 */
+// #define CODA_OPTION_AUD_OFFSET 2
+// #define CODA_OPTION_AUD_MASK 0x01
+#define CODA_OPTION_SLICEREPORT_OFFSET 1
+#define CODA_OPTION_SLICEREPORT_MASK 0x01
+// /* There is no bit 0 */
+#define CODA_CMD_ENC_SEQ_COD_STD 0x18C
+#define CODA_ENCODE_MPEG4 0
+#define CODA_ENCODE_H263 1
+#define CODA_ENCODE_H264 2
+#define CODA_CMD_ENC_SEQ_SRC_SIZE 0x190
+#define CODA_PICWIDTH_OFFSET 10
+#define CODA_PICWIDTH_MASK 0x3ff
+#define CODA_PICHEIGHT_OFFSET 0
+#define CODA_PICHEIGHT_MASK 0x3ff
+#define CODA_CMD_ENC_SEQ_SRC_F_RATE 0x194
+#define CODA_CMD_ENC_SEQ_MP4_PARA 0x198
+#define CODA_MP4PARAM_VERID_OFFSET 6
+#define CODA_MP4PARAM_VERID_MASK 0x01
+/* intra_dc_vlc_thr in MPEG-4 part 2 standard: unsigned [0:7] */
+#define CODA_MP4PARAM_INTRADCVLCTHR_OFFSET 2
+#define CODA_MP4PARAM_INTRADCVLCTHR_MASK 0x07
+#define CODA_MP4PARAM_REVERSIBLEVLCENABLE_OFFSET 1
+#define CODA_MP4PARAM_REVERSIBLEVLCENABLE_MASK 0x01
+#define CODA_MP4PARAM_DATAPARTITIONENABLE_OFFSET 0
+#define CODA_MP4PARAM_DATAPARTITIONENABLE_MASK 0x01
+// #define CODA_CMD_ENC_SEQ_263_PARA 0x19C
+// #define CODA_263PARAM_ANNEXJENABLE_OFFSET 2
+// #define CODA_263PARAM_ANNEXJENABLE_MASK 0x01
+// #define CODA_263PARAM_ANNEXKENABLE_OFFSET 1
+// #define CODA_263PARAM_ANNEXKENABLE_MASK 0x01
+// #define CODA_263PARAM_ANNEXTENABLE_OFFSET 0
+// #define CODA_263PARAM_ANNEXTENABLE_MASK 0x01
+#define CODA_CMD_ENC_SEQ_264_PARA 0x1A0
+/* deblk_filter_offset_alpha: signed [-6:6] */
+#define CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET 12
+#define CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK 0x0f
+/* deblk_filter_offset_beta: signed [-6:6] */
+#define CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET 8
+#define CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK 0x0f
+#define CODA_264PARAM_DISABLEDEBLK_OFFSET 6
+#define CODA_264PARAM_DISABLEDEBLK_MASK 0x01
+#define CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET 5
+#define CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_MASK 0x01
+/* chroma_qp_offset: signed [-12:12] */
+#define CODA_264PARAM_CHROMAQPOFFSET_OFFSET 0
+#define CODA_264PARAM_CHROMAQPOFFSET_MASK 0x1f
+#define CODA_CMD_ENC_SEQ_SLICE_MODE 0x1A4
+/* Slice size */
+#define CODA_SLICING_SIZE_OFFSET 2
+#define CODA_SLICING_SIZE_MASK 0x3fffffff
+/* Unit used for slice size: 0 = bits per slice, 1 = Macroblocks per slice */
+#define CODA_SLICING_UNIT_OFFSET 1
+#define CODA_SLICING_UNIT_MASK 0x01
+/* Slicing mode: 0 = One slice per picture, 1 = Multiple slices per picture */
+#define CODA_SLICING_MODE_OFFSET 0
+#define CODA_SLICING_MODE_MASK 0x01
+#define CODA_CMD_ENC_SEQ_GOP_SIZE 0x1A8
+/* GOP Size: 0 = Only first picture is Intra, 1 = All pictures are Intra
+ n from 2 to 60 = One picture out of n is Intra */
+#define CODA_GOP_SIZE_OFFSET 0
+#define CODA_GOP_SIZE_MASK 0x3f
+#define CODA_CMD_ENC_SEQ_RC_PARA 0x1AC
+/* Disable autoskip: 1 = Do not skip a frame if bitstream is bigger than specified */
+#define CODA_RATECONTROL_AUTOSKIP_OFFSET 31
+#define CODA_RATECONTROL_AUTOSKIP_MASK 0x01
+/* Initial delay: time in ms to fill the VBV buffer */
+#define CODA_RATECONTROL_INITIALDELAY_OFFSET 16
+#define CODA_RATECONTROL_INITIALDELAY_MASK 0x7f
+/* Bitrate: in kilobits per seconds */
+#define CODA_RATECONTROL_BITRATE_OFFSET 1
+#define CODA_RATECONTROL_BITRATE_MASK 0x7f
+#define CODA_RATECONTROL_ENABLE_OFFSET 0
+#define CODA_RATECONTROL_ENABLE_MASK 0x01
+#define CODA_CMD_ENC_SEQ_RC_BUF_SIZE 0x1B0
+#define CODA_CMD_ENC_SEQ_INTRA_REFRESH 0x1B4
+#define CODA_CMD_ENC_SEQ_FMO 0x1B8
+/* Flexible Macroblock Ordering type: 0 = interleaved, 1 = dispersed */
+#define CODA_FMOPARAM_TYPE_OFFSET 4
+#define CODA_FMOPARAM_TYPE_MASK 1
+/* Flexible Macroblock Ordering Slice Number: unsigned [2:8] */
+#define CODA_FMOPARAM_SLICENUM_OFFSET 0
+#define CODA_FMOPARAM_SLICENUM_MASK 0x0f
+// #define CODA_CMD_ENC_SEQ_INTRA_QP 0x1BC
+#define CODA_CMD_ENC_SEQ_RC_QP_MAX 0x1C8
+/* QP: from 1 to 51 in H.264 */
+#define CODA_QPMAX_OFFSET 0
+#define CODA_QPMAX_MASK 0x3f
+#define CODA_CMD_ENC_SEQ_RC_GAMMA 0x1CC
+#define CODA_GAMMA_OFFSET 0
+#define CODA_GAMMA_MASK 0xffff
+#define CODA_RET_ENC_SEQ_SUCCESS 0x1C0
+
+// /* Encoder Picture Run */
+#define CODA_CMD_ENC_PIC_SRC_ADDR_Y 0x180
+#define CODA_CMD_ENC_PIC_SRC_ADDR_CB 0x184
+#define CODA_CMD_ENC_PIC_SRC_ADDR_CR 0x188
+#define CODA_CMD_ENC_PIC_QS 0x18C
+#define CODA_CMD_ENC_PIC_ROT_MODE 0x190
+#define CODA_CMD_ENC_PIC_OPTION 0x194
+#define CODA_CMD_ENC_PIC_BB_START 0x198
+#define CODA_CMD_ENC_PIC_BB_SIZE 0x19C
+#define CODA_RET_ENC_PIC_TYPE 0x1C4
+#define CODA_RET_ENC_PIC_SLICE_NUM 0x1CC
+#define CODA_RET_ENC_PIC_FLAG 0x1D0
+
+/* Set Frame Buffer */
+#define CODA_CMD_SET_FRAME_BUF_NUM 0x180
+#define CODA_CMD_SET_FRAME_BUF_STRIDE 0x184
+
+/* Encoder Header */
+#define CODA_CMD_ENC_HEADER_CODE 0x180
+#define CODA_GAMMA_OFFSET 0
+#define CODA_HEADER_H264_SPS 0
+#define CODA_HEADER_H264_PPS 1
+#define CODA_HEADER_MP4V_VOL 0
+#define CODA_HEADER_MP4V_VOS 1
+#define CODA_HEADER_MP4V_VIS 2
+#define CODA_CMD_ENC_HEADER_BB_START 0x184
+#define CODA_CMD_ENC_HEADER_BB_SIZE 0x188
+
+// /* Set Encoder Parameter */
+// #define CODA_CMD_ENC_PARA_SET_TYPE 0x180
+// #define CODA_RET_ENC_PARA_SET_SIZE 0x1c0
+//
+/* Get Version */
+#define CODA_CMD_FIRMWARE_VERNUM 0x1c0
+#define CODA_FIRMWARE_PRODUCT(x) (((x) >> 16) & 0xffff)
+#define CODA_FIRMWARE_MAJOR(x) (((x) >> 12) & 0x0f)
+#define CODA_FIRMWARE_MINOR(x) (((x) >> 8) & 0x0f)
+#define CODA_FIRMWARE_RELEASE(x) ((x) & 0xff)
+
+#endif
new file mode 100644
@@ -0,0 +1,1183 @@
+/*
+ * Support eMMa-PrP through mem2mem framework.
+ *
+ * eMMa-PrP is a piece of HW that allows fetching buffers
+ * from one memory location and do several operations on
+ * them such as scaling or format conversion giving, as a result
+ * a new processed buffer in another memory location.
+ *
+ * Based on mem2mem_testdev.c by Pawel Osciak.
+ *
+ * Copyright (c) 2011 Vista Silicon S.L.
+ * Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * 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
+ */
+// #define DEBUG
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/dmaengine.h>
+
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-dma-contig.h>
+
+#define MEM2MEM_TEST_MODULE_NAME "mem2mem-deinterlace"
+
+MODULE_DESCRIPTION("mem2mem device which supports eMMa-PrP present in mx2 SoCs");
+MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.0.1");
+
+static bool debug = false;
+module_param(debug, bool, 0644);
+
+#define MIN_W 32
+#define MIN_H 32
+#define MAX_W 2040
+#define MAX_H 2046
+
+#define W_ALIGN_MASK_YUV420 0x07 /* multiple of 8 */
+#define W_ALIGN_MASK_OTHERS 0x03 /* multiple of 4 */
+#define H_ALIGN_MASK 0x01 /* multiple of 2 */
+
+/* Flags that indicate a format can be used for capture/output */
+#define MEM2MEM_CAPTURE (1 << 0)
+#define MEM2MEM_OUTPUT (1 << 1)
+
+#define MEM2MEM_NAME "m2m-deinterlace"
+
+/* In bytes, per queue */
+#define MEM2MEM_VID_MEM_LIMIT (16 * 1024 * 1024)
+
+#define dprintk(dev, fmt, arg...) \
+ v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
+
+#define DST_QUEUE_OFF_BASE (1 << 30)
+
+/* EMMA PrP */
+#define PRP_CNTL 0x00
+#define PRP_INTR_CNTL 0x04
+#define PRP_INTRSTATUS 0x08
+#define PRP_SOURCE_Y_PTR 0x0c
+#define PRP_SOURCE_CB_PTR 0x10
+#define PRP_SOURCE_CR_PTR 0x14
+#define PRP_DEST_RGB1_PTR 0x18
+#define PRP_DEST_RGB2_PTR 0x1c
+#define PRP_DEST_Y_PTR 0x20
+#define PRP_DEST_CB_PTR 0x24
+#define PRP_DEST_CR_PTR 0x28
+#define PRP_SRC_FRAME_SIZE 0x2c
+#define PRP_DEST_CH1_LINE_STRIDE 0x30
+#define PRP_SRC_PIXEL_FORMAT_CNTL 0x34
+#define PRP_CH1_PIXEL_FORMAT_CNTL 0x38
+#define PRP_CH1_OUT_IMAGE_SIZE 0x3c
+#define PRP_CH2_OUT_IMAGE_SIZE 0x40
+#define PRP_SRC_LINE_STRIDE 0x44
+#define PRP_CSC_COEF_012 0x48
+#define PRP_CSC_COEF_345 0x4c
+#define PRP_CSC_COEF_678 0x50
+#define PRP_CH1_RZ_HORI_COEF1 0x54
+#define PRP_CH1_RZ_HORI_COEF2 0x58
+#define PRP_CH1_RZ_HORI_VALID 0x5c
+#define PRP_CH1_RZ_VERT_COEF1 0x60
+#define PRP_CH1_RZ_VERT_COEF2 0x64
+#define PRP_CH1_RZ_VERT_VALID 0x68
+#define PRP_CH2_RZ_HORI_COEF1 0x6c
+#define PRP_CH2_RZ_HORI_COEF2 0x70
+#define PRP_CH2_RZ_HORI_VALID 0x74
+#define PRP_CH2_RZ_VERT_COEF1 0x78
+#define PRP_CH2_RZ_VERT_COEF2 0x7c
+#define PRP_CH2_RZ_VERT_VALID 0x80
+
+#define PRP_CNTL_CH1EN (1 << 0)
+#define PRP_CNTL_CH2EN (1 << 1)
+#define PRP_CNTL_CSIEN (1 << 2)
+#define PRP_CNTL_DATA_IN_YUV420 (0 << 3)
+#define PRP_CNTL_DATA_IN_YUV422 (1 << 3)
+#define PRP_CNTL_DATA_IN_RGB16 (2 << 3)
+#define PRP_CNTL_DATA_IN_RGB32 (3 << 3)
+#define PRP_CNTL_CH1_OUT_RGB8 (0 << 5)
+#define PRP_CNTL_CH1_OUT_RGB16 (1 << 5)
+#define PRP_CNTL_CH1_OUT_RGB32 (2 << 5)
+#define PRP_CNTL_CH1_OUT_YUV422 (3 << 5)
+#define PRP_CNTL_CH2_OUT_YUV420 (0 << 7)
+#define PRP_CNTL_CH2_OUT_YUV422 (1 << 7)
+#define PRP_CNTL_CH2_OUT_YUV444 (2 << 7)
+#define PRP_CNTL_CH1_LEN (1 << 9)
+#define PRP_CNTL_CH2_LEN (1 << 10)
+#define PRP_CNTL_SKIP_FRAME (1 << 11)
+#define PRP_CNTL_SWRST (1 << 12)
+#define PRP_CNTL_CLKEN (1 << 13)
+#define PRP_CNTL_WEN (1 << 14)
+#define PRP_CNTL_CH1BYP (1 << 15)
+#define PRP_CNTL_IN_TSKIP(x) ((x) << 16)
+#define PRP_CNTL_CH1_TSKIP(x) ((x) << 19)
+#define PRP_CNTL_CH2_TSKIP(x) ((x) << 22)
+#define PRP_CNTL_INPUT_FIFO_LEVEL(x) ((x) << 25)
+#define PRP_CNTL_RZ_FIFO_LEVEL(x) ((x) << 27)
+#define PRP_CNTL_CH2B1EN (1 << 29)
+#define PRP_CNTL_CH2B2EN (1 << 30)
+#define PRP_CNTL_CH2FEN (1 << 31)
+
+#define PRP_SIZE_HEIGHT(x) (x)
+#define PRP_SIZE_WIDTH(x) ((x) << 16)
+
+/* IRQ Enable and status register */
+#define PRP_INTR_RDERR (1 << 0)
+#define PRP_INTR_CH1WERR (1 << 1)
+#define PRP_INTR_CH2WERR (1 << 2)
+#define PRP_INTR_CH1FC (1 << 3)
+#define PRP_INTR_CH2FC (1 << 5)
+#define PRP_INTR_LBOVF (1 << 7)
+#define PRP_INTR_CH2OVF (1 << 8)
+
+#define PRP_INTR_ST_RDERR (1 << 0)
+#define PRP_INTR_ST_CH1WERR (1 << 1)
+#define PRP_INTR_ST_CH2WERR (1 << 2)
+#define PRP_INTR_ST_CH2B2CI (1 << 3)
+#define PRP_INTR_ST_CH2B1CI (1 << 4)
+#define PRP_INTR_ST_CH1B2CI (1 << 5)
+#define PRP_INTR_ST_CH1B1CI (1 << 6)
+#define PRP_INTR_ST_LBOVF (1 << 7)
+#define PRP_INTR_ST_CH2OVF (1 << 8)
+
+struct emmaprp_fmt {
+ char *name;
+ u32 fourcc;
+ enum v4l2_field field;
+ /* Types the format can be used for */
+ u32 types;
+};
+
+static struct emmaprp_fmt formats[] = {
+ {
+ .name = "YUV 4:2:0 Planar",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .field = V4L2_FIELD_NONE,
+ .types = MEM2MEM_CAPTURE,
+ },
+ {
+ .name = "YUV 4:2:0 Planar",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .field = V4L2_FIELD_SEQ_TB,
+ .types = MEM2MEM_OUTPUT,
+ },
+};
+
+/* Per-queue, driver-specific private data */
+struct emmaprp_q_data {
+ unsigned int width;
+ unsigned int height;
+ unsigned int sizeimage;
+ struct emmaprp_fmt *fmt;
+};
+
+enum {
+ V4L2_M2M_SRC = 0,
+ V4L2_M2M_DST = 1,
+};
+
+enum {
+ YUV420_DMA_Y_ODD,
+ YUV420_DMA_Y_EVEN,
+ YUV420_DMA_U_ODD,
+ YUV420_DMA_U_EVEN,
+ YUV420_DMA_V_ODD,
+ YUV420_DMA_V_EVEN,
+};
+// static void emmaprp_dma_task(unsigned long data);
+//
+// static unsigned long my_tasklet_data;
+//
+// DECLARE_TASKLET( my_tasklet, emmaprp_dma_task,
+// (unsigned long) &my_tasklet_data );
+
+/* Source and destination queue data */
+static struct emmaprp_q_data q_data[2];
+
+static struct emmaprp_q_data *get_q_data(enum v4l2_buf_type type)
+{
+ switch (type) {
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ return &q_data[V4L2_M2M_SRC];
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return &q_data[V4L2_M2M_DST];
+ default:
+ BUG();
+ }
+ return NULL;
+}
+
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+static struct emmaprp_fmt *find_format(struct v4l2_format *f)
+{
+ struct emmaprp_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < NUM_FORMATS; k++) {
+ fmt = &formats[k];
+ if ((fmt->types == f->type) &&
+ (fmt->fourcc == f->fmt.pix.pixelformat))
+ break;
+ }
+
+ if (k == NUM_FORMATS)
+ return NULL;
+
+ return &formats[k];
+}
+
+struct emmaprp_dev {
+ struct v4l2_device v4l2_dev;
+ struct video_device *vfd;
+
+ atomic_t busy;
+ struct mutex dev_mutex;
+ spinlock_t irqlock;
+
+ struct dma_chan *dma_chan;
+
+ struct v4l2_m2m_dev *m2m_dev;
+ struct vb2_alloc_ctx *alloc_ctx;
+};
+
+struct emmaprp_ctx {
+ struct emmaprp_dev *dev;
+
+ /* Abort requested by m2m */
+ int aborting;
+ dma_cookie_t cookie;
+ struct v4l2_m2m_ctx *m2m_ctx;
+};
+
+/*
+ * mem2mem callbacks
+ */
+static int emmaprp_job_ready(void *priv)
+{
+ struct emmaprp_ctx *ctx = priv;
+ struct emmaprp_dev *pcdev = ctx->dev;
+
+//printk("%s\n", __func__);
+ if ((v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) > 0)
+ && (v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) > 0)
+ && (atomic_read(&ctx->dev->busy) == 0)) {
+//printk("%s: task ready to run\n", __func__);
+ return 1;
+ }
+
+ dprintk(pcdev, "Task not ready to run\n");
+
+ return 0;
+}
+
+static void emmaprp_job_abort(void *priv)
+{
+ struct emmaprp_ctx *ctx = priv;
+ struct emmaprp_dev *pcdev = ctx->dev;
+
+ ctx->aborting = 1;
+
+ dprintk(pcdev, "Aborting task\n");
+
+ v4l2_m2m_job_finish(pcdev->m2m_dev, ctx->m2m_ctx);
+}
+
+static void emmaprp_lock(void *priv)
+{
+ struct emmaprp_ctx *ctx = priv;
+ struct emmaprp_dev *pcdev = ctx->dev;
+ mutex_lock(&pcdev->dev_mutex);
+}
+
+static void emmaprp_unlock(void *priv)
+{
+ struct emmaprp_ctx *ctx = priv;
+ struct emmaprp_dev *pcdev = ctx->dev;
+ mutex_unlock(&pcdev->dev_mutex);
+}
+
+static void dma_callback(void *data)
+{
+ struct emmaprp_ctx *curr_ctx = data;
+ struct emmaprp_dev *pcdev = curr_ctx->dev;
+ struct vb2_buffer *src_vb, *dst_vb;
+
+// printk("%s: all transfers ended!!\n", __func__);
+ atomic_set(&pcdev->busy, 0);
+
+ src_vb = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
+ dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
+ dst_vb->v4l2_buf.sequence = src_vb->v4l2_buf.sequence;
+ v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
+ v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
+
+// irq_ok:
+ //printk("%s: job_finish\n", __func__);
+ v4l2_m2m_job_finish(pcdev->m2m_dev, curr_ctx->m2m_ctx);
+
+}
+
+static void emmaprp_issue_dma(struct emmaprp_ctx *ctx, int op)
+{
+ struct emmaprp_q_data *s_q_data, *d_q_data;
+ struct vb2_buffer *src_buf, *dst_buf;
+ struct emmaprp_dev *pcdev = ctx->dev;
+ struct dma_chan *chan = pcdev->dma_chan;
+ struct dma_device *dmadev = chan->device;
+ struct dma_async_tx_descriptor *tx;
+ struct dma_interleaved_template *xt;
+ unsigned int s_width, s_height;
+ unsigned int d_width, d_height;
+ unsigned int d_size, s_size;
+ dma_addr_t p_in, p_out;
+ enum dma_ctrl_flags flags;
+
+ xt = kzalloc(sizeof(struct dma_async_tx_descriptor)
+ + sizeof(struct data_chunk), GFP_KERNEL);
+ if (!xt)
+ printk("MALLOC ERROR!!!!!\n");
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+
+ s_q_data = get_q_data(V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ s_width = s_q_data->width;
+ s_height = s_q_data->height;
+ s_size = s_width * s_height;
+
+ d_q_data = get_q_data(V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ d_width = d_q_data->width;
+ d_height = d_q_data->height;
+ d_size = d_width * d_height;
+
+ /* FIXME: try/set_fmt must adjust this properly */
+ BUG_ON(d_size != s_size);
+ //printk("%s 6\n", __func__);
+ p_in = (dma_addr_t)vb2_dma_contig_plane_dma_addr(src_buf, 0);
+ p_out = (dma_addr_t)vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+ if (!p_in || !p_out) {
+ v4l2_err(&pcdev->v4l2_dev,
+ "Acquiring kernel pointers to buffers failed\n");
+ return;
+ }
+
+ //printk("%s p_in = %p, p_out = %p\n", __func__, p_in, p_out);
+ switch (op) {
+ case YUV420_DMA_Y_ODD:
+ //printk("%s: YUV420_DMA_Y_ODD\n", __func__);
+// printk("%s: s_width = %d\n", __func__, s_width);
+ xt->numf = s_height / 2;
+ xt->sgl[0].size = s_width;
+ xt->sgl[0].icg = s_width;
+ xt->src_start = p_in;
+ xt->dst_start = p_out;
+ break;
+ case YUV420_DMA_Y_EVEN:
+ //printk("%s: YUV420_DMA_Y_EVEN\n", __func__);
+ xt->numf = s_height / 2;
+ xt->sgl[0].size = s_width;
+ xt->sgl[0].icg = s_width;
+ xt->src_start = p_in + s_size / 2;
+ xt->dst_start = p_out + s_width;
+ break;
+ case YUV420_DMA_U_ODD:
+ //printk("%s: YUV420_DMA_U_ODD\n", __func__);
+ xt->numf = s_height / 4;
+ xt->sgl[0].size = s_width / 2;
+ xt->sgl[0].icg = s_width / 2;
+ xt->src_start = p_in + s_size;
+ xt->dst_start = p_out + s_size;
+ break;
+ case YUV420_DMA_U_EVEN:
+ //printk("%s: YUV420_DMA_U_EVEN\n", __func__);
+ xt->numf = s_height / 4;
+ xt->sgl[0].size = s_width / 2;
+ xt->sgl[0].icg = s_width / 2;
+ xt->src_start = p_in + (9 * s_size) / 8;
+ xt->dst_start = p_out + s_size + s_width / 2;
+ break;
+ case YUV420_DMA_V_ODD:
+ //printk("%s: YUV420_DMA_V_ODD\n", __func__);
+ xt->numf = s_height / 4;
+ xt->sgl[0].size = s_width / 2;
+ xt->sgl[0].icg = s_width / 2;
+ xt->src_start = p_in + (5 * s_size) / 4;
+ xt->dst_start = p_out + (5 * s_size) / 4;
+ break;
+ case YUV420_DMA_V_EVEN:
+ default:
+ //printk("%s: YUV420_DMA_V_EVEN\n", __func__);
+ xt->numf = s_height / 4;
+ xt->sgl[0].size = s_width / 2;
+ xt->sgl[0].icg = s_width / 2;
+ xt->src_start = p_in + (11 * s_size) / 8;
+ xt->dst_start = p_out + (5 * s_size) / 4 + s_width / 2;
+ break;
+ }
+ //printk("%s 8\n", __func__);
+ /* Common parameters for al transfers */
+// xt.sgl[0].size = chunk.size;
+// xt.sgl[0].icg = chunk.icg;
+ xt->frame_size = 1;
+ xt->dir = DMA_MEM_TO_MEM;
+ xt->src_sgl = false;
+ xt->dst_sgl = true;
+ flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
+ DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SKIP_SRC_UNMAP;
+// printk("%s: 3 ctx = %p \n", __func__, ctx);
+ tx = dmadev->device_prep_interleaved_dma(chan, xt, flags);
+// tx = dmadev->device_prep_interleaved_dma(chan, NULL, flags);
+ if (tx == NULL) {
+ v4l2_warn(&pcdev->v4l2_dev, "DMA interleaved prep error\n");
+ printk("%s: lolz ctx = %p \n", __func__, ctx);
+ return;
+ }
+// tx = dmadev->device_prep_dma_memcpy(chan, p_out, p_in, s_size * 3/2, flags);
+// if (tx == NULL) {
+// v4l2_warn(&pcdev->v4l2_dev,
+// "DMA prep error with src=0x%x dst=0x%x len=%d\n",
+// p_in, p_out, s_size * 3/2);
+// return;
+// }
+// //printk("%s 9\n", __func__);
+// printk("%s: 4 ctx = %p\n", __func__, ctx);
+ if (op == YUV420_DMA_V_EVEN) {
+ tx->callback = dma_callback;
+ tx->callback_param = ctx;
+ }
+// printk("%s: 5 ctx = %p\n", __func__, ctx);
+ ctx->cookie = dmaengine_submit(tx);
+// printk("%s: 6 ctx = %p\n", __func__, ctx);
+ //printk("%s 10\n", __func__);
+ if (dma_submit_error(ctx->cookie)) {
+ v4l2_warn(&pcdev->v4l2_dev,
+ "DMA submit error %d with src=0x%x dst=0x%x len=0x%x\n",
+ ctx->cookie, p_in, p_out, s_size * 3/2);
+ return;
+ }
+// printk("%s: 7 ctx = %p\n", __func__, ctx);
+ //printk("%s 11\n", __func__);
+ dma_async_issue_pending(chan);
+// // while (1) {
+// // if (dma_async_memcpy_complete(chan, ctx->cookie, NULL, NULL))
+// // break;
+// // else
+// // schedule();
+// // }
+// if (irqs_disabled())
+// printk("%s: IRQS DISABLED!!\n", __func__);
+// dma_sync_wait(chan, ctx->cookie);
+// printk("%s 12 ctx = %p\n", __func__, ctx);
+ kfree(xt);
+}
+
+// static void emmaprp_dma_task(unsigned long data)
+// {
+// struct emmaprp_dev *pcdev = (struct emmaprp_dev *)my_tasklet_data;
+// struct dma_chan *chan = pcdev->dma_chan;
+// struct vb2_buffer *src_vb, *dst_vb;
+// struct emmaprp_ctx *curr_ctx;
+//
+// //printk("%s: pcdev: %p\n", __func__, pcdev);
+// //printk("%s: pcdev->m2m_dev: %p\n", __func__, pcdev->m2m_dev);
+// //printk("%s: my_tasklet_data = %p\n", __func__, my_tasklet_data);
+// // curr_ctx = v4l2_m2m_get_curr_priv(pcdev->m2m_dev);
+// // if (NULL == curr_ctx) {
+// // printk(KERN_ERR
+// // "Instance released before the end of transaction\n");
+// // return;
+// // }
+//
+// if (curr_ctx->aborting)
+// return; /*FIXME*/
+// printk("%s: 1\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_Y_ODD);
+// printk("%s: 2\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_Y_EVEN);
+// printk("%s: 3\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_U_ODD);
+// printk("%s: 4\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_U_EVEN);
+// printk("%s: 5\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_V_ODD);
+// printk("%s: 6\n", __func__);
+// emmaprp_issue_dma(curr_ctx, YUV420_DMA_V_EVEN);
+// printk("%s: 7\n", __func__);
+// dma_async_issue_pending(chan);
+// printk("%s: 8\n", __func__);
+// }
+
+static void emmaprp_device_run(void *priv)
+{
+ struct emmaprp_ctx *ctx = priv;
+ struct emmaprp_dev *pcdev = ctx->dev;
+ struct dma_chan *chan = pcdev->dma_chan;
+
+ atomic_set(&ctx->dev->busy, 1);
+
+ //printk("%s: pcdev = %p\n", __func__, pcdev);
+ //printk("%s: pcdev->m2m_dev = %p\n", __func__, pcdev->m2m_dev);
+
+// my_tasklet_data = (unsigned long)pcdev;
+ //printk("%s: my_tasklet_data = %p\n", __func__, my_tasklet_data);
+// tasklet_schedule(&my_tasklet);
+// emmaprp_dma_task((unsigned long) pcdev);
+// printk("%s: 1 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_Y_ODD);
+// printk("%s: 2 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_Y_EVEN);
+// printk("%s: 3 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_U_ODD);
+// printk("%s: 4 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_U_EVEN);
+// printk("%s: 5 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_V_ODD);
+// printk("%s: 6 ctx = %p\n", __func__, ctx);
+ emmaprp_issue_dma(ctx, YUV420_DMA_V_EVEN);
+// printk("%s: 7 ctx = %p\n", __func__, ctx);
+ dma_async_issue_pending(chan);
+// printk("%s: 8 ctx = %p\n", __func__, ctx);
+}
+
+/*
+ * video ioctls
+ */
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ strncpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver) - 1);
+ strncpy(cap->card, MEM2MEM_NAME, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT
+ | V4L2_CAP_STREAMING;
+
+ return 0;
+}
+
+static int enum_fmt(struct v4l2_fmtdesc *f, u32 type)
+{
+ int i, num;
+ struct emmaprp_fmt *fmt;
+
+ num = 0;
+
+ for (i = 0; i < NUM_FORMATS; ++i) {
+ if (formats[i].types & type) {
+ /* index-th format of type type found ? */
+ if (num == f->index)
+ break;
+ /* Correct type but haven't reached our index yet,
+ * just increment per-type index */
+ ++num;
+ }
+ }
+
+ if (i < NUM_FORMATS) {
+ /* Format found */
+ fmt = &formats[i];
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ return 0;
+ }
+
+ /* Format not found */
+ return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return enum_fmt(f, MEM2MEM_CAPTURE);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return enum_fmt(f, MEM2MEM_OUTPUT);
+}
+
+static int vidioc_g_fmt(struct emmaprp_ctx *ctx, struct v4l2_format *f)
+{
+ struct vb2_queue *vq;
+ struct emmaprp_q_data *q_data;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+ if (!vq)
+ return -EINVAL;
+
+ q_data = get_q_data(f->type);
+
+ f->fmt.pix.width = q_data->width;
+ f->fmt.pix.height = q_data->height;
+ f->fmt.pix.field = q_data->fmt->field;
+ f->fmt.pix.pixelformat = q_data->fmt->fourcc;
+ f->fmt.pix.bytesperline = q_data->width * 3 / 2;
+ f->fmt.pix.sizeimage = q_data->sizeimage;
+
+ return 0;
+}
+
+static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ return vidioc_g_fmt(priv, f);
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ return vidioc_g_fmt(priv, f);
+}
+
+static int vidioc_try_fmt(struct v4l2_format *f, struct emmaprp_fmt *fmt)
+{
+ struct emmaprp_q_data *q_data = get_q_data(f->type);
+ enum v4l2_field field = q_data->fmt->field;
+
+ /* V4L2 specification suggests the driver corrects the format struct
+ * if any of the dimensions is unsupported */
+ f->fmt.pix.field = field;
+
+ if (f->fmt.pix.height < MIN_H)
+ f->fmt.pix.height = MIN_H;
+ else if (f->fmt.pix.height > MAX_H)
+ f->fmt.pix.height = MAX_H;
+
+ if (f->fmt.pix.width < MIN_W)
+ f->fmt.pix.width = MIN_W;
+ else if (f->fmt.pix.width > MAX_W)
+ f->fmt.pix.width = MAX_W;
+
+ f->fmt.pix.height &= ~H_ALIGN_MASK;
+ f->fmt.pix.width &= ~W_ALIGN_MASK_YUV420;
+ f->fmt.pix.bytesperline = f->fmt.pix.width * 3 / 2;
+
+ f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct emmaprp_fmt *fmt;
+ struct emmaprp_ctx *ctx = priv;
+
+ fmt = find_format(f);
+ if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Fourcc format (0x%08x) invalid.\n",
+ f->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+ return vidioc_try_fmt(f, fmt);
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct emmaprp_fmt *fmt;
+ struct emmaprp_ctx *ctx = priv;
+
+ fmt = find_format(f);
+ if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "Fourcc format (0x%08x) invalid.\n",
+ f->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ return vidioc_try_fmt(f, fmt);
+}
+
+static int vidioc_s_fmt(struct emmaprp_ctx *ctx, struct v4l2_format *f)
+{
+ struct emmaprp_q_data *q_data;
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+ if (!vq)
+ return -EINVAL;
+
+ q_data = get_q_data(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->fmt = find_format(f);
+ q_data->width = f->fmt.pix.width;
+ q_data->height = f->fmt.pix.height;
+ q_data->sizeimage = q_data->width * q_data->height * 3 / 2;
+
+ dprintk(ctx->dev,
+ "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
+ f->type, q_data->width, q_data->height, q_data->fmt->fourcc);
+
+ return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ int ret;
+
+ ret = vidioc_try_fmt_vid_cap(file, priv, f);
+ if (ret)
+ return ret;
+ return vidioc_s_fmt(priv, f);
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ int ret;
+
+ ret = vidioc_try_fmt_vid_out(file, priv, f);
+ if (ret)
+ return ret;
+
+ return vidioc_s_fmt(priv, f);
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+int v4l2_m2m_querybuf_custom(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_buffer *buf)
+{
+ struct vb2_queue *vq;
+ int ret = 0;
+ unsigned int i;
+ struct vb2_buffer *vb;
+
+ vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
+ ret = vb2_querybuf(vq, buf);
+
+ vb = vq->bufs[buf->index];
+ buf->m.offset = vb2_dma_contig_plane_dma_addr(vb, 0);
+ if (!buf->m.offset)
+ return -ENOMEM;
+ vb->v4l2_planes[0].m.mem_offset = buf->m.offset;
+
+ /* Adjust MMAP memory offsets for the CAPTURE queue */
+ if (buf->memory == V4L2_MEMORY_MMAP && !V4L2_TYPE_IS_OUTPUT(vq->type)) {
+ if (V4L2_TYPE_IS_MULTIPLANAR(vq->type)) {
+ for (i = 0; i < buf->length; ++i)
+ buf->m.planes[i].m.mem_offset
+ |= DST_QUEUE_OFF_BASE;
+ } else {
+ buf->m.offset |= DST_QUEUE_OFF_BASE;
+ }
+ }
+
+ return ret;
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_querybuf_custom(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct emmaprp_ctx *ctx = priv;
+
+ return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+static const struct v4l2_ioctl_ops emmaprp_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+
+ .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+ .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
+ .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
+
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+};
+
+
+/*
+ * Queue operations
+ */
+struct vb2_dc_conf {
+ struct device *dev;
+};
+
+static int emmaprp_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
+{
+ struct emmaprp_ctx *ctx = vb2_get_drv_priv(vq);
+ struct emmaprp_q_data *q_data;
+ unsigned int size, count = *nbuffers;
+
+ q_data = get_q_data(vq->type);
+
+ size = q_data->width * q_data->height * 3 / 2;
+
+ while (size * count > MEM2MEM_VID_MEM_LIMIT)
+ (count)--;
+
+ *nplanes = 1;
+ *nbuffers = count;
+ sizes[0] = size;
+
+ alloc_ctxs[0] = ctx->dev->alloc_ctx;
+
+ dprintk(ctx->dev, "get %d buffer(s) of size %d each.\n", count, size);
+
+ return 0;
+}
+
+static int emmaprp_buf_prepare(struct vb2_buffer *vb)
+{
+ struct emmaprp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct emmaprp_q_data *q_data;
+
+ dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type);
+
+ q_data = get_q_data(vb->vb2_queue->type);
+
+ if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
+ dprintk(ctx->dev, "%s data will not fit into plane"
+ "(%lu < %lu)\n", __func__,
+ vb2_plane_size(vb, 0),
+ (long)q_data->sizeimage);
+ return -EINVAL;
+ }
+
+ vb2_set_plane_payload(vb, 0, q_data->sizeimage);
+
+ return 0;
+}
+
+static void emmaprp_buf_queue(struct vb2_buffer *vb)
+{
+ struct emmaprp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+static struct vb2_ops emmaprp_qops = {
+ .queue_setup = emmaprp_queue_setup,
+ .buf_prepare = emmaprp_buf_prepare,
+ .buf_queue = emmaprp_buf_queue,
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct emmaprp_ctx *ctx = priv;
+ int ret;
+
+ memset(src_vq, 0, sizeof(*src_vq));
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ src_vq->drv_priv = ctx;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ src_vq->ops = &emmaprp_qops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ memset(dst_vq, 0, sizeof(*dst_vq));
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ dst_vq->drv_priv = ctx;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ dst_vq->ops = &emmaprp_qops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+
+ return vb2_queue_init(dst_vq);
+}
+
+/*
+ * File operations
+ */
+static int emmaprp_open(struct file *file)
+{
+ struct emmaprp_dev *pcdev = video_drvdata(file);
+ struct emmaprp_ctx *ctx = NULL;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ file->private_data = ctx;
+ ctx->dev = pcdev;
+
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(pcdev->m2m_dev, ctx, &queue_init);
+
+ if (IS_ERR(ctx->m2m_ctx)) {
+ int ret = PTR_ERR(ctx->m2m_ctx);
+
+ kfree(ctx);
+ return ret;
+ }
+
+ dprintk(pcdev, "Created instance %p, m2m_ctx: %p\n", ctx, ctx->m2m_ctx);
+
+ return 0;
+}
+
+static int emmaprp_release(struct file *file)
+{
+ struct emmaprp_dev *pcdev = video_drvdata(file);
+ struct emmaprp_ctx *ctx = file->private_data;
+
+ dprintk(pcdev, "Releasing instance %p\n", ctx);
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ kfree(ctx);
+
+ return 0;
+}
+
+static unsigned int emmaprp_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct emmaprp_ctx *ctx = file->private_data;
+
+ return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+}
+
+int v4l2_m2m_mmap_custom(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct vm_area_struct *vma)
+{
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+ struct vb2_queue *vq;
+
+ if (!(offset & DST_QUEUE_OFF_BASE)) {
+ vq = v4l2_m2m_get_src_vq(m2m_ctx);
+ } else {
+ vq = v4l2_m2m_get_dst_vq(m2m_ctx);
+ vma->vm_pgoff &= ~(DST_QUEUE_OFF_BASE >> PAGE_SHIFT);
+ }
+
+ return vb2_mmap(vq, vma);
+}
+
+static int emmaprp_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct emmaprp_ctx *ctx = file->private_data;
+
+ return v4l2_m2m_mmap_custom(file, ctx->m2m_ctx, vma);
+}
+
+static const struct v4l2_file_operations emmaprp_fops = {
+ .owner = THIS_MODULE,
+ .open = emmaprp_open,
+ .release = emmaprp_release,
+ .poll = emmaprp_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = emmaprp_mmap,
+};
+
+static struct video_device emmaprp_videodev = {
+ .name = MEM2MEM_NAME,
+ .fops = &emmaprp_fops,
+ .ioctl_ops = &emmaprp_ioctl_ops,
+ .minor = -1,
+ .release = video_device_release,
+};
+
+static struct v4l2_m2m_ops m2m_ops = {
+ .device_run = emmaprp_device_run,
+ .job_ready = emmaprp_job_ready,
+ .job_abort = emmaprp_job_abort,
+ .lock = emmaprp_lock,
+ .unlock = emmaprp_unlock,
+};
+
+static int emmaprp_probe(struct platform_device *pdev)
+{
+ struct emmaprp_dev *pcdev;
+ struct video_device *vfd;
+ dma_cap_mask_t mask;
+ int ret = 0;
+
+ pcdev = kzalloc(sizeof *pcdev, GFP_KERNEL);
+ if (!pcdev)
+ return -ENOMEM;
+
+ spin_lock_init(&pcdev->irqlock);
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_INTERLEAVE, mask);
+ pcdev->dma_chan = dma_request_channel(mask, NULL, pcdev);
+ if (!pcdev->dma_chan)
+ goto free_dev;
+ //printk("%s: dma channel: %d\n", __func__, pcdev->dma_chan->chan_id);
+ if (!dma_has_cap(DMA_INTERLEAVE, pcdev->dma_chan->device->cap_mask)) {
+ v4l2_err(&pcdev->v4l2_dev, "DMA does not support INTERLEAVE\n");
+ goto rel_dma;
+ }
+
+ ret = v4l2_device_register(&pdev->dev, &pcdev->v4l2_dev);
+ if (ret)
+ goto rel_dma;
+
+ atomic_set(&pcdev->busy, 0);
+ mutex_init(&pcdev->dev_mutex);
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(&pcdev->v4l2_dev, "Failed to allocate video device\n");
+ ret = -ENOMEM;
+ goto unreg_dev;
+ }
+
+ *vfd = emmaprp_videodev;
+ vfd->lock = &pcdev->dev_mutex;
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
+ if (ret) {
+ v4l2_err(&pcdev->v4l2_dev, "Failed to register video device\n");
+ goto rel_vdev;
+ }
+
+ video_set_drvdata(vfd, pcdev);
+ snprintf(vfd->name, sizeof(vfd->name), "%s", emmaprp_videodev.name);
+ pcdev->vfd = vfd;
+ v4l2_info(&pcdev->v4l2_dev, MEM2MEM_TEST_MODULE_NAME
+ " Device registered as /dev/video%d\n", vfd->num);
+
+ platform_set_drvdata(pdev, pcdev);
+
+ pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(pcdev->alloc_ctx)) {
+ v4l2_err(&pcdev->v4l2_dev, "Failed to alloc vb2 context\n");
+ ret = PTR_ERR(pcdev->alloc_ctx);
+ goto err_ctx;
+ }
+
+ pcdev->m2m_dev = v4l2_m2m_init(&m2m_ops);
+ if (IS_ERR(pcdev->m2m_dev)) {
+ v4l2_err(&pcdev->v4l2_dev, "Failed to init mem2mem device\n");
+ ret = PTR_ERR(pcdev->m2m_dev);
+ goto err_m2m;
+ }
+
+ q_data[V4L2_M2M_SRC].fmt = &formats[1];
+ q_data[V4L2_M2M_DST].fmt = &formats[0];
+
+ return 0;
+
+ v4l2_m2m_release(pcdev->m2m_dev);
+err_m2m:
+ video_unregister_device(pcdev->vfd);
+err_ctx:
+ vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
+rel_vdev:
+ video_device_release(vfd);
+unreg_dev:
+ v4l2_device_unregister(&pcdev->v4l2_dev);
+rel_dma:
+ dma_release_channel(pcdev->dma_chan);
+free_dev:
+ kfree(pcdev);
+
+ return ret;
+}
+
+static int emmaprp_remove(struct platform_device *pdev)
+{
+ struct emmaprp_dev *pcdev =
+ (struct emmaprp_dev *)platform_get_drvdata(pdev);
+
+ v4l2_info(&pcdev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME);
+ v4l2_m2m_release(pcdev->m2m_dev);
+ video_unregister_device(pcdev->vfd);
+ v4l2_device_unregister(&pcdev->v4l2_dev);
+ vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
+ dma_release_channel(pcdev->dma_chan);
+ kfree(pcdev);
+
+ return 0;
+}
+
+static struct platform_driver emmaprp_pdrv = {
+ .probe = emmaprp_probe,
+ .remove = emmaprp_remove,
+ .driver = {
+ .name = MEM2MEM_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static void __exit emmaprp_exit(void)
+{
+ platform_driver_unregister(&emmaprp_pdrv);
+}
+
+static int __init emmaprp_init(void)
+{
+ return platform_driver_register(&emmaprp_pdrv);
+}
+
+module_init(emmaprp_init);
+module_exit(emmaprp_exit);
+
new file mode 100644
@@ -0,0 +1,9 @@
+
+#ifndef _CODA_CODEC_H
+#define _CODA_CODEC_H
+
+struct coda_platform_data {
+ char *firmware;
+};
+
+#endif