Exynos4 JPEG IP driver Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- drivers/media/video/Kconfig | 8 + drivers/media/video/Makefile | 1 + drivers/media/video/s5p-jpeg/Makefile | 3 + drivers/media/video/s5p-jpeg/jpeg-core.c | 1380 ++++++++++++++++++++++++++++++ drivers/media/video/s5p-jpeg/jpeg-core.h | 116 +++ drivers/media/video/s5p-jpeg/jpeg-hw.h | 766 +++++++++++++++++ drivers/media/video/s5p-jpeg/jpeg-regs.h | 280 ++++++ 7 files changed, 2554 insertions(+), 0 deletions(-) create mode 100644 drivers/media/video/s5p-jpeg/Makefile create mode 100644 drivers/media/video/s5p-jpeg/jpeg-core.c create mode 100644 drivers/media/video/s5p-jpeg/jpeg-core.h create mode 100644 drivers/media/video/s5p-jpeg/jpeg-hw.h create mode 100644 drivers/media/video/s5p-jpeg/jpeg-regs.h diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index ebd00cc..ca5ad2c 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -1098,6 +1098,14 @@ config VIDEO_SAMSUNG_S5P_G2D This is a v4l2 driver for Samsung S5P and EXYNOS4 G2D 2d graphics accelerator. +config VIDEO_SAMSUNG_S5P_JPEG + tristate "Samsung S5P JPEG codec driver" + depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + ---help--- + This is a v4l2 driver for Samsung S5P and EXYNOS4 JPEG codec. + config VIDEO_SAMSUNG_S5P_MFC tristate "Samsung S5P MFC 5.1 Video Codec" depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index 8dac72b..f973001 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -174,6 +174,7 @@ obj-$(CONFIG_VIDEO_OMAP1) += omap1_camera.o obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc/ +obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_MFC) += s5p-mfc/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_TV) += s5p-tv/ diff --git a/drivers/media/video/s5p-jpeg/Makefile b/drivers/media/video/s5p-jpeg/Makefile new file mode 100644 index 0000000..a96992f --- /dev/null +++ b/drivers/media/video/s5p-jpeg/Makefile @@ -0,0 +1,3 @@ + +obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) := s5p-jpeg.o +s5p-jpeg-y := jpeg-core.o diff --git a/drivers/media/video/s5p-jpeg/jpeg-core.c b/drivers/media/video/s5p-jpeg/jpeg-core.c new file mode 100644 index 0000000..5d4c4d9 --- /dev/null +++ b/drivers/media/video/s5p-jpeg/jpeg-core.c @@ -0,0 +1,1380 @@ +/* linux/drivers/media/video/s5p-jpeg/jpeg-core.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> + * + * 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 <linux/gfp.h> +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/spinlock.h> +#include <linux/module.h> +#include <linux/clk.h> +#include <linux/pm_runtime.h> +#include <media/v4l2-mem2mem.h> +#include <media/v4l2-ioctl.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "jpeg-core.h" +#include "jpeg-hw.h" + +#define S5P_JPEG_M2M_NAME "s5p-jpeg" + +/* Flags that indicate a format can be used for capture/output */ +#define MEM2MEM_CAPTURE (1 << 0) +#define MEM2MEM_OUTPUT (1 << 1) + +/* a selection of JPEG markers */ +#define TEM 0x01 +#define SOF0 0xc0 +#define RST 0xd0 +#define SOI 0xd8 +#define EOI 0xd9 +#define DHP 0xde + +static struct s5p_jpeg_fmt formats_enc[] = { + { + .name = "YUV 4:2:0, YCbCr", + .fourcc = V4L2_PIX_FMT_YUV420, + .depth = 16, + .types = MEM2MEM_CAPTURE, + }, + { + .name = "YUV 4:2:2, YCbYCr", + .fourcc = V4L2_PIX_FMT_YUYV, + .depth = 16, + .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + }, + { + .name = "RGB565", + .fourcc = V4L2_PIX_FMT_RGB565X, + .depth = 16, + .types = MEM2MEM_OUTPUT, + }, +}; + +#define NUM_FORMATS_ENC ARRAY_SIZE(formats_enc) + +static struct s5p_jpeg_fmt formats_dec[] = { + { + .name = "YUV 4:2:0, YCbCr", + .fourcc = V4L2_PIX_FMT_YUV420, + .depth = 16, + .h_align = 4, + .v_align = 4, + .types = MEM2MEM_CAPTURE, + }, + { + .name = "YUV 4:2:2, YCbYCr", + .fourcc = V4L2_PIX_FMT_YUYV, + .depth = 16, + .h_align = 4, + .v_align = 3, + .types = MEM2MEM_CAPTURE, + }, + { + .name = "JPEG JFIF", + .fourcc = V4L2_PIX_FMT_JPEG, + .depth = 0, + .types = MEM2MEM_OUTPUT, + }, +}; + +#define NUM_FORMATS_DEC ARRAY_SIZE(formats_dec) + +struct s5p_jpeg_buffer { + unsigned long size; + unsigned long curr; + unsigned long data; +}; + +/* + * ============================================================================ + * Device file operations + * ============================================================================ + */ + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq); +static struct s5p_jpeg_fmt *s5p_jpeg_find_format(struct s5p_jpeg_fmt *formats, + int n, struct v4l2_format *f); + +static int s5p_jpeg_open(struct file *file) +{ + struct s5p_jpeg *jpeg = video_drvdata(file); + struct video_device *vfd = video_devdata(file); + struct s5p_jpeg_fmt *fmt; + struct v4l2_format f; + struct s5p_jpeg_ctx *ctx = NULL; + + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + file->private_data = ctx; + ctx->jpeg = jpeg; + if (vfd == jpeg->vfd_encoder) + ctx->mode = S5P_JPEG_ENCODE; + else if (vfd == jpeg->vfd_decoder) + ctx->mode = S5P_JPEG_DECODE; + + ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); + if (ctx->mode == S5P_JPEG_ENCODE) { + f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB565X; + fmt = s5p_jpeg_find_format(formats_enc, NUM_FORMATS_ENC, &f); + ctx->out_q.fmt = fmt; + + f.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + fmt = s5p_jpeg_find_format(formats_enc, NUM_FORMATS_ENC, &f); + ctx->cap_q.fmt = fmt; + } else if (ctx->mode == S5P_JPEG_DECODE) { + f.fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG; + fmt = s5p_jpeg_find_format(formats_dec, NUM_FORMATS_DEC, &f); + ctx->out_q.fmt = fmt; + + f.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + fmt = s5p_jpeg_find_format(formats_dec, NUM_FORMATS_DEC, &f); + ctx->cap_q.fmt = fmt; + } + + if (IS_ERR_OR_NULL(ctx->m2m_ctx)) { + int err = PTR_ERR(ctx->m2m_ctx); + kfree(ctx); + return err; + } + + return 0; +} + +static int s5p_jpeg_release(struct file *file) +{ + struct s5p_jpeg_ctx *ctx = file->private_data; + + v4l2_m2m_ctx_release(ctx->m2m_ctx); + kfree(ctx); + + return 0; +} + +static unsigned int s5p_jpeg_poll(struct file *file, + struct poll_table_struct *wait) +{ + struct s5p_jpeg_ctx *ctx = file->private_data; + + return v4l2_m2m_poll(file, ctx->m2m_ctx, wait); +} + +static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct s5p_jpeg_ctx *ctx = file->private_data; + + return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); +} + +static const struct v4l2_file_operations s5p_jpeg_fops = { + .owner = THIS_MODULE, + .open = s5p_jpeg_open, + .release = s5p_jpeg_release, + .poll = s5p_jpeg_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = s5p_jpeg_mmap, +}; + +/* + * ============================================================================ + * video ioctl operations + * ============================================================================ + */ + +static int get_byte(struct s5p_jpeg_buffer *buf) +{ + if (buf->curr >= buf->size) + return -1; + + return ((unsigned char *)buf->data)[buf->curr++]; +} + +static unsigned int get_word_be(struct s5p_jpeg_buffer *buf) +{ + register unsigned int temp; + + temp = (unsigned int)(get_byte(buf) << 8); + return (unsigned int)get_byte(buf) | temp; +} + +static long skip(struct s5p_jpeg_buffer *buf, long len) +{ + int c; + long delta = 0; + + while (len > 0L) { + c = get_byte(buf); + delta++; + len--; + } + + return delta; +} + +static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result, + unsigned long buffer, unsigned long size) +{ + int c, components, notfound; + unsigned int height, width; + long length; + long bytes_read = 0L; + struct s5p_jpeg_buffer jpeg_buffer; + + jpeg_buffer.size = size; + jpeg_buffer.data = buffer; + jpeg_buffer.curr = 0; + + notfound = 1; + while (notfound) { + c = get_byte(&jpeg_buffer); + if (c == -1) + break; + bytes_read++; + if (c != 0xff) + continue; + do { + c = get_byte(&jpeg_buffer); + bytes_read++; + } while (c == 0xff); + if (c == -1) + break; + if (c == 0) + continue; + length = 0L; + switch (c) { + /* SOF0: baseline JPEG */ + case SOF0: + length = (long) get_word_be(&jpeg_buffer); + bytes_read += 2L; + length -= 2L; + + c = get_byte(&jpeg_buffer); + if (c == -1) + break; + height = get_word_be(&jpeg_buffer); + width = get_word_be(&jpeg_buffer); + components = get_byte(&jpeg_buffer); + if (components == -1) + break; + notfound = 0; + + bytes_read += 6L; + length -= 6L; + bytes_read += skip(&jpeg_buffer, components * 3); + break; + + /* skip payload-less markers */ + case SOI: + case RST+0: + case RST+1: + case RST+2: + case RST+3: + case RST+4: + case RST+5: + case RST+6: + case RST+7: + case EOI: + case TEM: + break; + + /* skip uninteresting payload markers */ + default: + length = (long)get_word_be(&jpeg_buffer); + bytes_read += 2L; + length -= 2L; + bytes_read += skip(&jpeg_buffer, length); + break; + } + } + result->w = width; + result->h = height; + result->size = components; + return !notfound; +} + +static int s5p_jpeg_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct s5p_jpeg_ctx *ctx = priv; + + if (ctx->mode == S5P_JPEG_ENCODE) { + strncpy(cap->driver, S5P_JPEG_M2M_NAME " encoder", + sizeof(cap->driver) - 1); + strncpy(cap->card, S5P_JPEG_M2M_NAME " encoder", + sizeof(cap->card) - 1); + } else if (ctx->mode == S5P_JPEG_DECODE) { + strncpy(cap->driver, S5P_JPEG_M2M_NAME " decoder", + sizeof(cap->driver) - 1); + strncpy(cap->card, S5P_JPEG_M2M_NAME " decoder", + sizeof(cap->card) - 1); + } + cap->bus_info[0] = 0; + cap->version = KERNEL_VERSION(1, 0, 0); + cap->capabilities = V4L2_CAP_STREAMING | + V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_VIDEO_OUTPUT; + return 0; +} + +static int enum_fmt(struct s5p_jpeg_fmt *formats, int n, + struct v4l2_fmtdesc *f, u32 type) +{ + int i, num; + struct s5p_jpeg_fmt *fmt; + + num = 0; + + for (i = 0; i < n; ++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 < n) { + /* 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 s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct s5p_jpeg_ctx *ctx; + + ctx = priv; + + if (ctx->mode == S5P_JPEG_ENCODE) + return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, + MEM2MEM_CAPTURE); + + return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_CAPTURE); +} + +static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct s5p_jpeg_ctx *ctx; + + ctx = priv; + + if (ctx->mode == S5P_JPEG_ENCODE) + return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, + MEM2MEM_OUTPUT); + + return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_OUTPUT); +} + +static int vidioc_g_fmt(struct s5p_jpeg_ctx *ctx, struct v4l2_format *f) +{ + struct vb2_queue *vq; + struct s5p_jpeg_q_data *q_data; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + q_data = &ctx->out_q; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (ctx->mode == S5P_JPEG_DECODE && !ctx->hdr_parsed) + return -EINVAL; + q_data = &ctx->cap_q; + break; + default: + BUG(); + } + f->fmt.pix.width = q_data->w; + f->fmt.pix.height = q_data->h; + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.pixelformat = q_data->fmt->fourcc; + if (V4L2_PIX_FMT_JPEG != q_data->fmt->fourcc) + f->fmt.pix.bytesperline = (q_data->w * q_data->fmt->depth) >> 3; + else + f->fmt.pix.bytesperline = 0; + f->fmt.pix.sizeimage = q_data->size; + + return 0; +} + +static int s5p_jpeg_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(priv, f); +} + +static int s5p_jpeg_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(priv, f); +} + +static struct s5p_jpeg_fmt *s5p_jpeg_find_format(struct s5p_jpeg_fmt *formats, + int n, struct v4l2_format *f) +{ + struct s5p_jpeg_fmt *fmt; + unsigned int k; + for (k = 0; k < n; k++) { + fmt = &formats[k]; + if (fmt->fourcc == f->fmt.pix.pixelformat) + break; + } + + if (k == n) + return NULL; + + return &formats[k]; +} + +static void jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax, + unsigned int walign, + u32 *h, unsigned int hmin, unsigned int hmax, + unsigned int halign) +{ + int width, height, w_step, h_step; + + width = *w; + height = *h; + + w_step = 1 << walign; + h_step = 1 << halign; + v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); + + if (*w < width && (*w + w_step) < wmax) + *w += w_step; + if (*h < height && (*h + h_step) < hmax) + *h += h_step; + +} + +static int vidioc_try_fmt(struct v4l2_format *f, struct s5p_jpeg_fmt *fmt, + struct s5p_jpeg_ctx *ctx, int q_type) +{ + enum v4l2_field field; + + field = f->fmt.pix.field; + + if (field == V4L2_FIELD_ANY) + field = V4L2_FIELD_NONE; + else if (V4L2_FIELD_NONE != field) + return -EINVAL; + + /* V4L2 specification suggests the driver corrects the format struct + * if any of the dimensions is unsupported */ + f->fmt.pix.field = field; + + if (q_type == MEM2MEM_OUTPUT) + jpeg_bound_align_image(&f->fmt.pix.width, S5P_JPEG_MIN_WIDTH, + S5P_JPEG_MAX_WIDTH, 0, + &f->fmt.pix.height, S5P_JPEG_MIN_HEIGHT, + S5P_JPEG_MAX_HEIGHT, 0); + else + jpeg_bound_align_image(&f->fmt.pix.width, S5P_JPEG_MIN_WIDTH, + S5P_JPEG_MAX_WIDTH, fmt->h_align, + &f->fmt.pix.height, S5P_JPEG_MIN_HEIGHT, + S5P_JPEG_MAX_HEIGHT, fmt->v_align); + + if (fmt->fourcc == V4L2_PIX_FMT_JPEG) { + if (f->fmt.pix.sizeimage <= 0) + return -EINVAL; + f->fmt.pix.bytesperline = 0; + } else { + f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; + f->fmt.pix.sizeimage = f->fmt.pix.height * + f->fmt.pix.bytesperline; + } + + return 0; +} + +static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct s5p_jpeg_fmt *fmt; + struct s5p_jpeg_ctx *ctx = priv; + if (ctx->mode == S5P_JPEG_ENCODE) + + fmt = s5p_jpeg_find_format(formats_enc, NUM_FORMATS_ENC, f); + else + fmt = s5p_jpeg_find_format(formats_dec, NUM_FORMATS_DEC, f); + if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) { + v4l2_err(&ctx->jpeg->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + + return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_CAPTURE); +} + +static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct s5p_jpeg_fmt *fmt; + struct s5p_jpeg_ctx *ctx = priv; + if (ctx->mode == S5P_JPEG_ENCODE) + fmt = s5p_jpeg_find_format(formats_enc, NUM_FORMATS_ENC, f); + else + fmt = s5p_jpeg_find_format(formats_dec, NUM_FORMATS_DEC, f); + if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) { + v4l2_err(&ctx->jpeg->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + + return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_OUTPUT); +} + +static int vidioc_s_fmt(struct s5p_jpeg_ctx *ctx, struct v4l2_format *f) +{ + struct vb2_queue *vq; + struct s5p_jpeg_q_data *q_data; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + q_data = &ctx->out_q; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + q_data = &ctx->cap_q; + break; + default: + BUG(); + } + + if (vb2_is_busy(vq)) { + v4l2_err(&ctx->jpeg->v4l2_dev, "%s queue busy\n", __func__); + return -EBUSY; + } + + if (ctx->mode == S5P_JPEG_ENCODE) + q_data->fmt = s5p_jpeg_find_format(formats_enc, + NUM_FORMATS_ENC, f); + else + q_data->fmt = s5p_jpeg_find_format(formats_dec, + NUM_FORMATS_DEC, f); + q_data->w = f->fmt.pix.width; + q_data->h = f->fmt.pix.height; + if (V4L2_PIX_FMT_JPEG != q_data->fmt->fourcc) + q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; + else + q_data->size = f->fmt.pix.sizeimage; + + return 0; +} + +static int s5p_jpeg_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + + ret = s5p_jpeg_try_fmt_vid_cap(file, priv, f); + if (ret) + return ret; + + return vidioc_s_fmt(priv, f); +} + +static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + + ret = s5p_jpeg_try_fmt_vid_out(file, priv, f); + if (ret) + return ret; + + return vidioc_s_fmt(priv, f); +} + +static int s5p_jpeg_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *reqbufs) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); +} + +static int s5p_jpeg_querybuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); +} + +static int s5p_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); +} + +static int s5p_jpeg_dqbuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); +} + +static int s5p_jpeg_streamon(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); +} + +static int s5p_jpeg_streamoff(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct s5p_jpeg_ctx *ctx = priv; + + return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); +} + +int s5p_jpeg_g_selection(struct file *file, void *priv, + struct v4l2_selection *s) +{ + struct s5p_jpeg_ctx *ctx = priv; + + switch (s->target) { + case V4L2_SEL_COMPOSE_ACTIVE: + case V4L2_SEL_CROP_ACTIVE: + s->r.width = ctx->out_q.w; + s->r.height = ctx->out_q.h; + break; + case V4L2_SEL_CROP_DEFAULT: + case V4L2_SEL_CROP_BOUNDS: + case V4L2_SEL_COMPOSE_DEFAULT: + case V4L2_SEL_COMPOSE_BOUNDS: + case V4L2_SEL_COMPOSE_PADDED: + s->r.width = ctx->cap_q.w; + s->r.height = ctx->cap_q.w; + break; + default: + return -EINVAL; + } + s->r.left = 0; + s->r.top = 0; + return 0; +} + +static int s5p_jpeg_g_jpegcomp(struct file *file, void *priv, + struct v4l2_jpegcompression *compr) +{ + struct s5p_jpeg_ctx *ctx = priv; + + if (ctx->mode == S5P_JPEG_DECODE) + return -ENOTTY; + + memset(compr, 0, sizeof(*compr)); + compr->quality = ctx->compr_quality; + + return 0; +} + +static int s5p_jpeg_s_jpegcomp(struct file *file, void *priv, + struct v4l2_jpegcompression *compr) +{ + struct s5p_jpeg_ctx *ctx = priv; + + if (ctx->mode == S5P_JPEG_DECODE) + return -ENOTTY; + + if (compr->quality < S5P_JPEG_COMPR_QUAL_BEST || + compr->quality > S5P_JPEG_COMPR_QUAL_WORST) + return -EINVAL; + + ctx->compr_quality = compr->quality; + + return 0; +} + +static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = { + .vidioc_querycap = s5p_jpeg_querycap, + + .vidioc_enum_fmt_vid_cap = s5p_jpeg_enum_fmt_vid_cap, + .vidioc_enum_fmt_vid_out = s5p_jpeg_enum_fmt_vid_out, + + .vidioc_g_fmt_vid_cap = s5p_jpeg_g_fmt_vid_cap, + .vidioc_g_fmt_vid_out = s5p_jpeg_g_fmt_vid_out, + + .vidioc_try_fmt_vid_cap = s5p_jpeg_try_fmt_vid_cap, + .vidioc_try_fmt_vid_out = s5p_jpeg_try_fmt_vid_out, + + .vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap, + .vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out, + + .vidioc_reqbufs = s5p_jpeg_reqbufs, + .vidioc_querybuf = s5p_jpeg_querybuf, + + .vidioc_qbuf = s5p_jpeg_qbuf, + .vidioc_dqbuf = s5p_jpeg_dqbuf, + + .vidioc_streamon = s5p_jpeg_streamon, + .vidioc_streamoff = s5p_jpeg_streamoff, + + .vidioc_g_selection = s5p_jpeg_g_selection, + + .vidioc_g_jpegcomp = s5p_jpeg_g_jpegcomp, + .vidioc_s_jpegcomp = s5p_jpeg_s_jpegcomp, +}; + +/* + * ============================================================================ + * mem2mem callbacks + * ============================================================================ + */ + +static void s5p_jpeg_device_run(void *priv) +{ + struct s5p_jpeg_ctx *ctx = priv; + struct s5p_jpeg *jpeg = ctx->jpeg; + struct vb2_buffer *src_buf, *dst_buf; + unsigned long src_addr, dst_addr; + + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); + dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); + dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0); + + pm_runtime_get_sync(jpeg->dev); + + jpeg_reset(jpeg->regs); + jpeg_poweron(jpeg->regs); + jpeg_proc_mode(jpeg->regs, ctx->mode); + if (ctx->mode == S5P_JPEG_ENCODE) { + if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565X) + jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_565); + else + jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_422); + if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) + jpeg_subsampling_mode(jpeg->regs, + S5P_JPEG_SUBSAMPLING_422); + else + jpeg_subsampling_mode(jpeg->regs, + S5P_JPEG_SUBSAMPLING_420); + jpeg_dri(jpeg->regs, 0); + jpeg_x(jpeg->regs, ctx->out_q.w); + jpeg_y(jpeg->regs, ctx->out_q.h); + jpeg_imgadr(jpeg->regs, src_addr); + jpeg_jpgadr(jpeg->regs, dst_addr); + + /* ultimately comes from sizeimage from userspace */ + jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size); + + /* JPEG RGB to YCbCr conversion matrix */ + jpeg_coef11(jpeg->regs, S5P_JPEG_COEF11); + jpeg_coef12(jpeg->regs, S5P_JPEG_COEF12); + jpeg_coef13(jpeg->regs, S5P_JPEG_COEF13); + jpeg_coef21(jpeg->regs, S5P_JPEG_COEF21); + jpeg_coef22(jpeg->regs, S5P_JPEG_COEF22); + jpeg_coef23(jpeg->regs, S5P_JPEG_COEF23); + jpeg_coef31(jpeg->regs, S5P_JPEG_COEF31); + jpeg_coef32(jpeg->regs, S5P_JPEG_COEF32); + jpeg_coef33(jpeg->regs, S5P_JPEG_COEF33); + + /* + * JPEG IP allows storing 4 quantization tables + * We fill table 0 for luma and table 1 for chroma + */ + jpeg_set_qtbl_lum(jpeg->regs, 0, ctx->compr_quality); + jpeg_set_qtbl_chr(jpeg->regs, 1, ctx->compr_quality); + /* use table 0 for Y */ + jpeg_qtbl1(jpeg->regs, 0); + /* use table 1 for Cb and Cr*/ + jpeg_qtbl2(jpeg->regs, 1); + jpeg_qtbl3(jpeg->regs, 1); + + /* Y, Cb, Cr use Huffman table 0 */ + jpeg_htbl1_ac(jpeg->regs, 0); + jpeg_htbl1_dc(jpeg->regs, 0); + jpeg_htbl2_ac(jpeg->regs, 0); + jpeg_htbl2_dc(jpeg->regs, 0); + jpeg_htbl3_ac(jpeg->regs, 0); + jpeg_htbl3_dc(jpeg->regs, 0); + } else { + jpeg_rst_int_enable(jpeg->regs, true); + jpeg_data_num_int_enable(jpeg->regs, true); + jpeg_final_mcu_num_int_enable(jpeg->regs, true); + jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); + jpeg_jpgadr(jpeg->regs, src_addr); + jpeg_imgadr(jpeg->regs, dst_addr); + } + jpeg_start(jpeg->regs); +} + +static int s5p_jpeg_job_ready(void *priv) +{ + struct s5p_jpeg_ctx *ctx = priv; + + if (ctx->mode == S5P_JPEG_DECODE) + return ctx->hdr_parsed; + return 1; +} + +static void s5p_jpeg_job_abort(void *priv) +{ +} + +static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = { + .device_run = s5p_jpeg_device_run, + .job_ready = s5p_jpeg_job_ready, + .job_abort = s5p_jpeg_job_abort, +}; + +/* + * ============================================================================ + * Queue operations + * ============================================================================ + */ + +static int s5p_jpeg_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + void *alloc_ctxs[]) +{ + struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); + struct s5p_jpeg_q_data *q_data; + unsigned int size, count = *nbuffers; + + switch (vq->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + q_data = &ctx->out_q; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + q_data = &ctx->cap_q; + break; + default: + BUG(); + } + + size = q_data->size; + + /* + * header is parsed during decoding and parsed information stored + * in the context so we do not allow another buffer to overwrite it + */ + if (ctx->mode == S5P_JPEG_DECODE) + count = 1; + + *nbuffers = count; + *nplanes = 1; + sizes[0] = size; + alloc_ctxs[0] = ctx->jpeg->alloc_ctx; + + return 0; +} + +static int s5p_jpeg_buf_prepare(struct vb2_buffer *vb) +{ + struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct s5p_jpeg_q_data *q_data; + + switch (vb->vb2_queue->type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + q_data = &ctx->out_q; + break; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + q_data = &ctx->cap_q; + break; + default: + BUG(); + } + if (vb2_plane_size(vb, 0) < q_data->size) { + printk(KERN_ERR "%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), + (long)q_data->size); + return -EINVAL; + } + + vb2_set_plane_payload(vb, 0, q_data->size); + + return 0; +} + +static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) +{ + struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + + if (ctx->mode == S5P_JPEG_DECODE && + vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { + struct s5p_jpeg_q_data tmp; + ctx->hdr_parsed = s5p_jpeg_parse_hdr(&tmp, + (unsigned long)vb2_plane_vaddr(vb, 0), + ctx->out_q.size); + if (ctx->hdr_parsed) { + struct s5p_jpeg_q_data *q_data; + + q_data = &ctx->out_q; + q_data->w = tmp.w; + q_data->h = tmp.h; + + q_data = &ctx->cap_q; + q_data->w = tmp.w; + q_data->h = tmp.h; + + jpeg_bound_align_image(&q_data->w, + S5P_JPEG_MIN_WIDTH, + S5P_JPEG_MAX_WIDTH, + q_data->fmt->h_align, + &q_data->h, + S5P_JPEG_MIN_HEIGHT, + S5P_JPEG_MAX_HEIGHT, + q_data->fmt->v_align); + ctx->parsed_w = tmp.w; + ctx->parsed_h = tmp.h; + } + } + if (ctx->m2m_ctx) + v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); +} + +static void s5p_jpeg_wait_prepare(struct vb2_queue *vq) +{ + struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); + + mutex_unlock(&ctx->jpeg->lock); +} + +static void s5p_jpeg_wait_finish(struct vb2_queue *vq) +{ + struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); + + mutex_lock(&ctx->jpeg->lock); +} + +static struct vb2_ops s5p_jpeg_qops = { + .queue_setup = s5p_jpeg_queue_setup, + .buf_prepare = s5p_jpeg_buf_prepare, + .buf_queue = s5p_jpeg_buf_queue, + .wait_prepare = s5p_jpeg_wait_prepare, + .wait_finish = s5p_jpeg_wait_finish, +}; + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct s5p_jpeg_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 = &s5p_jpeg_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 = &s5p_jpeg_qops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + + return vb2_queue_init(dst_vq); +} + +/* + * ============================================================================ + * ISR + * ============================================================================ + */ + +static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) +{ + struct s5p_jpeg *jpeg = dev_id; + struct s5p_jpeg_ctx *curr_ctx; + struct vb2_buffer *src_buf, *dst_buf; + unsigned long payload_size = 0; + enum vb2_buffer_state state = VB2_BUF_STATE_DONE; + bool enc_jpeg_too_large = false; + bool timer_elapsed = false; + bool op_completed = false; + + curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); + + src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx); + dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx); + + if (curr_ctx->mode == S5P_JPEG_ENCODE) + enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs); + timer_elapsed = jpeg_timer_stat(jpeg->regs); + op_completed = jpeg_result_stat_ok(jpeg->regs); + if (curr_ctx->mode == S5P_JPEG_DECODE) + op_completed = op_completed && jpeg_stream_stat_ok(jpeg->regs); + + if (enc_jpeg_too_large) { + state = VB2_BUF_STATE_ERROR; + jpeg_clear_enc_stream_stat(jpeg->regs); + } else if (timer_elapsed) { + state = VB2_BUF_STATE_ERROR; + jpeg_clear_timer_stat(jpeg->regs); + } else if (!op_completed) { + state = VB2_BUF_STATE_ERROR; + } else { + payload_size = jpeg_compressed_size(jpeg->regs); + } + + v4l2_m2m_buf_done(src_buf, state); + if (curr_ctx->mode == S5P_JPEG_ENCODE) + vb2_set_plane_payload(dst_buf, 0, payload_size); + v4l2_m2m_buf_done(dst_buf, state); + v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx); + + jpeg_clear_int(jpeg->regs); + + pm_runtime_put_sync(jpeg->dev); + + return IRQ_HANDLED; +} + +/* + * ============================================================================ + * Driver basic infrastructure + * ============================================================================ + */ + +static struct video_device s5p_jpeg_videodev = { + .name = S5P_JPEG_M2M_NAME, + .fops = &s5p_jpeg_fops, + .ioctl_ops = &s5p_jpeg_ioctl_ops, + .minor = -1, + .release = video_device_release, +}; + +static int s5p_jpeg_probe(struct platform_device *pdev) +{ + struct s5p_jpeg *jpeg; + struct resource *res; + int ret; + + /* JPEG IP abstraction struct */ + jpeg = kzalloc(sizeof(struct s5p_jpeg), GFP_KERNEL); + if (!jpeg) { + dev_err(&pdev->dev, "no memory for state\n"); + return -ENOMEM; + } + mutex_init(&jpeg->lock); + jpeg->dev = &pdev->dev; + + /* memory-mapped registers */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (NULL == res) { + dev_err(&pdev->dev, "cannot find IO resource\n"); + ret = -ENOENT; + goto jpeg_alloc_rollback; + } + + jpeg->ioarea = request_mem_region(res->start, resource_size(res), + pdev->name); + + if (NULL == jpeg->ioarea) { + dev_err(&pdev->dev, "cannot request IO\n"); + ret = -ENXIO; + goto jpeg_alloc_rollback; + } + + jpeg->regs = ioremap(res->start, resource_size(res)); + + if (NULL == jpeg->regs) { + dev_err(&pdev->dev, "cannot map IO\n"); + ret = -ENXIO; + goto mem_region_rollback; + } + + dev_dbg(&pdev->dev, "registers %p (%p, %p)\n", + jpeg->regs, jpeg->ioarea, res); + + /* interrupt service routine registration */ + jpeg->irq = ret = platform_get_irq(pdev, 0); + if (ret <= 0) { + dev_err(&pdev->dev, "cannot find IRQ\n"); + goto ioremap_rollback; + } + + ret = request_irq(jpeg->irq, s5p_jpeg_irq, 0, + dev_name(&pdev->dev), jpeg); + + if (ret != 0) { + dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq); + goto ioremap_rollback; + } + + /* clocks */ + jpeg->clk = clk_get(&pdev->dev, "jpeg"); + if (IS_ERR_OR_NULL(jpeg->clk)) { + dev_err(&pdev->dev, "cannot get clock\n"); + ret = -ENOENT; + goto request_irq_rollback; + } + dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk); + clk_enable(jpeg->clk); + + /* v4l2 device */ + ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); + if (ret) { + dev_err(&pdev->dev, "Failed to register v4l2 device\n"); + goto clk_get_rollback; + } + + /* JPEG encoder /dev/videoX node */ + jpeg->vfd_encoder = video_device_alloc(); + if (!jpeg->vfd_encoder) { + v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); + ret = -ENOMEM; + goto device_register_rollback; + } + *(jpeg->vfd_encoder) = s5p_jpeg_videodev; + jpeg->vfd_encoder->lock = &jpeg->lock; + + ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1); + if (ret) { + v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); + goto enc_vdev_alloc_rollback; + } + + video_set_drvdata(jpeg->vfd_encoder, jpeg); + v4l2_info(&jpeg->v4l2_dev, S5P_JPEG_M2M_NAME + " encoder device registered as /dev/video%d\n", + jpeg->vfd_encoder->num); + + /* JPEG decoder /dev/videoX node */ + jpeg->vfd_decoder = video_device_alloc(); + if (!jpeg->vfd_decoder) { + v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); + ret = -ENOMEM; + goto enc_vdev_register_rollback; + } + *(jpeg->vfd_decoder) = s5p_jpeg_videodev; + jpeg->vfd_decoder->lock = &jpeg->lock; + + ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); + if (ret) { + v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); + goto dec_vdev_alloc_rollback; + } + + video_set_drvdata(jpeg->vfd_decoder, jpeg); + v4l2_info(&jpeg->v4l2_dev, S5P_JPEG_M2M_NAME + " decoder device registered as /dev/video%d\n", + jpeg->vfd_decoder->num); + + /* mem2mem device */ + jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops); + if (IS_ERR_OR_NULL(jpeg->m2m_dev)) { + v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); + ret = PTR_ERR(jpeg->m2m_dev); + goto dec_vdev_register_rollback; + } + + jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); + if (IS_ERR_OR_NULL(jpeg->alloc_ctx)) { + v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); + ret = PTR_ERR(jpeg->alloc_ctx); + goto m2m_init_rollback; + } + + /* final statements & power management */ + platform_set_drvdata(pdev, jpeg); + + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + + dev_info(&pdev->dev, "Samsung S5P JPEG codec\n"); + + return 0; + + /* vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); */ + +m2m_init_rollback: + v4l2_m2m_release(jpeg->m2m_dev); + +dec_vdev_register_rollback: + video_unregister_device(jpeg->vfd_decoder); + +dec_vdev_alloc_rollback: + video_device_release(jpeg->vfd_decoder); + +enc_vdev_register_rollback: + video_unregister_device(jpeg->vfd_encoder); + +enc_vdev_alloc_rollback: + video_device_release(jpeg->vfd_encoder); + +device_register_rollback: + v4l2_device_unregister(&jpeg->v4l2_dev); + +clk_get_rollback: + clk_disable(jpeg->clk); + clk_put(jpeg->clk); + +request_irq_rollback: + free_irq(jpeg->irq, jpeg); + +ioremap_rollback: + iounmap(jpeg->regs); + +mem_region_rollback: + release_resource(jpeg->ioarea); + kfree(jpeg->ioarea); + +jpeg_alloc_rollback: + kfree(jpeg); + return ret; +} + +static int s5p_jpeg_remove(struct platform_device *pdev) +{ + struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); + + pm_runtime_disable(jpeg->dev); + + vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); + v4l2_m2m_release(jpeg->m2m_dev); + video_unregister_device(jpeg->vfd_decoder); + video_device_release(jpeg->vfd_decoder); + video_unregister_device(jpeg->vfd_encoder); + video_device_release(jpeg->vfd_encoder); + v4l2_device_unregister(&jpeg->v4l2_dev); + + clk_disable(jpeg->clk); + clk_put(jpeg->clk); + + free_irq(jpeg->irq, jpeg); + + iounmap(jpeg->regs); + + release_resource(jpeg->ioarea); + kfree(jpeg->ioarea); + kfree(jpeg); + + return 0; +} + +static int +s5p_jpeg_suspend(struct platform_device *pdev, pm_message_t state) +{ + int ret = 0; + + return ret; +} + +static int s5p_jpeg_resume(struct platform_device *pdev) +{ + int ret = 0; + + return ret; +} + +static int s5p_jpeg_runtime_suspend(struct device *dev) +{ + return 0; +} + +static int s5p_jpeg_runtime_resume(struct device *dev) +{ + struct platform_device *pdev; + struct s5p_jpeg *jpeg; + + pdev = container_of(dev, struct platform_device, dev); + jpeg = platform_get_drvdata(pdev); + /* + * JPEG IP allows storing two Huffman tables for each component + * We fill table 0 for each component + */ + jpeg_set_hdctbl(jpeg->regs, 0); + jpeg_set_hdctblg(jpeg->regs, 0); + jpeg_set_hactbl(jpeg->regs, 0); + jpeg_set_hactblg(jpeg->regs, 0); + return 0; +} + +static const struct dev_pm_ops s5p_jpeg_pm_ops = { + .runtime_suspend = s5p_jpeg_runtime_suspend, + .runtime_resume = s5p_jpeg_runtime_resume, +}; + +static struct platform_driver s5p_jpeg_driver = { + .probe = s5p_jpeg_probe, + .remove = s5p_jpeg_remove, + .suspend = s5p_jpeg_suspend, + .resume = s5p_jpeg_resume, + .driver = { + .owner = THIS_MODULE, + .name = S5P_JPEG_M2M_NAME, + .pm = &s5p_jpeg_pm_ops, + }, +}; + +static int __init +s5p_jpeg_register(void) +{ + int ret; + + printk(KERN_INFO "S5P JPEG V4L2 Driver, (c) 2011 Samsung Electronics\n"); + + ret = platform_driver_register(&s5p_jpeg_driver); + + if (ret) { + printk(KERN_ERR + "%s: failed to register jpeg driver\n", __func__); + return -EINVAL; + } + + return ret; +} + +static void __exit +s5p_jpeg_unregister(void) +{ + platform_driver_unregister(&s5p_jpeg_driver); +} + +module_init(s5p_jpeg_register); +module_exit(s5p_jpeg_unregister); + +MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>"); +MODULE_DESCRIPTION("Samsung JPEG codec driver"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/media/video/s5p-jpeg/jpeg-core.h b/drivers/media/video/s5p-jpeg/jpeg-core.h new file mode 100644 index 0000000..ed3d66f --- /dev/null +++ b/drivers/media/video/s5p-jpeg/jpeg-core.h @@ -0,0 +1,116 @@ +/* linux/drivers/media/video/s5p-jpeg/jpeg-core.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> + * + * 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. + */ + +#ifndef JPEG_CORE_H_ +#define JPEG_CORE_H_ + +#include <media/v4l2-device.h> + +#define S5P_JPEG_COMPR_QUAL_BEST 0 +#define S5P_JPEG_COMPR_QUAL_WORST 3 +#define S5P_JPEG_COEF11 0x4D +#define S5P_JPEG_COEF12 0x97 +#define S5P_JPEG_COEF13 0x1E +#define S5P_JPEG_COEF21 0x2C +#define S5P_JPEG_COEF22 0x57 +#define S5P_JPEG_COEF23 0x83 +#define S5P_JPEG_COEF31 0x83 +#define S5P_JPEG_COEF32 0x6e +#define S5P_JPEG_COEF33 0x13 + +/** + * struct s5p_jpeg - JPEG IP abstraction + * @lock: the mutex protecting this structure + * @v4l2_dev: v4l2 device for mem2mem mode + * @vfd_encoder: video device node for encoder mem2mem mode + * @vfd_decoder: video device node for decoder mem2mem mode + * @m2m_dev: v4l2 mem2mem device data + * @ioarea: JPEG IP memory region + * @regs: JPEG IP registers mapping + * @irq: JPEG IP irq + * @clk: JPEG IP clock + * @dev: JPEG IP struct device + * @alloc_ctx: videobuf2 memory allocator's context + */ +struct s5p_jpeg { + struct mutex lock; + + struct v4l2_device v4l2_dev; + struct video_device *vfd_encoder; + struct video_device *vfd_decoder; + struct v4l2_m2m_dev *m2m_dev; + + struct resource *ioarea; + void __iomem *regs; + unsigned int irq; + struct clk *clk; + struct device *dev; + void *alloc_ctx; +}; + +/** + * struct jpeg_fmt - driver's internal color format data + * @name: format descritpion + * @fourcc: the fourcc code, 0 if not applicable + * @depth: number of bits per pixel + * @h_align: horizontal alignment order (align to 2^h_align) + * @v_align: vertical alignment order (align to 2^v_align) + * @types: types of queue this format is applicable to + */ +struct s5p_jpeg_fmt { + char *name; + u32 fourcc; + int depth; + int h_align; + int v_align; + u32 types; +}; + +/** + * s5p_jpeg_q_data - parameters of one queue + * @fmt: driver-specific format of this queue + * @w: image width + * @h: image height + * @size: image buffer size in bytes + */ +struct s5p_jpeg_q_data { + struct s5p_jpeg_fmt *fmt; + u32 w; + u32 h; + u32 size; +}; + +/** + * s5p_jpeg_ctx - the device context data + * @jpeg: JPEG IP device for this context + * @mode: compression (encode) operation or decompression (decode) + * @compr_quality: compression quality in compression (encode) mode + * @m2m_ctx: mem2mem device context + * @out_q: source (output) queue information + * @cap_fmt: destination (capture) queue queue information + * @hdr_parsed: set if header has been parsed during decompression + * parsed_w: image width parsed during decompression + * parsed_h: image height parsed during decompression + */ +struct s5p_jpeg_ctx { + struct s5p_jpeg *jpeg; + unsigned int mode; + unsigned int compr_quality; + struct v4l2_m2m_ctx *m2m_ctx; + struct s5p_jpeg_q_data out_q; + struct s5p_jpeg_q_data cap_q; + bool hdr_parsed; + u32 parsed_w; + u32 parsed_h; +}; + +#endif /* JPEG_CORE_H */ diff --git a/drivers/media/video/s5p-jpeg/jpeg-hw.h b/drivers/media/video/s5p-jpeg/jpeg-hw.h new file mode 100644 index 0000000..ae2b9ac --- /dev/null +++ b/drivers/media/video/s5p-jpeg/jpeg-hw.h @@ -0,0 +1,766 @@ +/* linux/drivers/media/video/s5p-jpeg/jpeg-hw.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> + * + * 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. + */ +#ifndef JPEG_HW_H_ +#define JPEG_HW_H_ + +#include <linux/io.h> + +#include "jpeg-hw.h" +#include "jpeg-regs.h" + +#define w(x, a) writel((x), (regs) + (a)) +#define r(a) readl((regs) + (a)) +#define ARR_SIZE(a) (sizeof(a) / sizeof(*(a))) + +#define S5P_JPEG_MIN_WIDTH 32 +#define S5P_JPEG_MIN_HEIGHT 32 +#define S5P_JPEG_MAX_WIDTH 8192 +#define S5P_JPEG_MAX_HEIGHT 8192 +#define S5P_JPEG_ENCODE 0 +#define S5P_JPEG_DECODE 1 +#define S5P_JPEG_RAW_IN_565 0 +#define S5P_JPEG_RAW_IN_422 1 +#define S5P_JPEG_SUBSAMPLING_422 0 +#define S5P_JPEG_SUBSAMPLING_420 1 +#define S5P_JPEG_RAW_OUT_422 0 +#define S5P_JPEG_RAW_OUT_420 1 + +static const unsigned char qtbl_luminance[4][64] = { + {/* level 1 - high quality */ + 8, 6, 6, 8, 12, 14, 16, 17, + 6, 6, 6, 8, 10, 13, 12, 15, + 6, 6, 7, 8, 13, 14, 18, 24, + 8, 8, 8, 14, 13, 19, 24, 35, + 12, 10, 13, 13, 20, 26, 34, 39, + 14, 13, 14, 19, 26, 34, 39, 39, + 16, 12, 18, 24, 34, 39, 39, 39, + 17, 15, 24, 35, 39, 39, 39, 39 + }, + {/* level 2 */ + 12, 8, 8, 12, 17, 21, 24, 23, + 8, 9, 9, 11, 15, 19, 18, 23, + 8, 9, 10, 12, 19, 20, 27, 36, + 12, 11, 12, 21, 20, 28, 36, 53, + 17, 15, 19, 20, 30, 39, 51, 59, + 21, 19, 20, 28, 39, 51, 59, 59, + 24, 18, 27, 36, 51, 59, 59, 59, + 23, 23, 36, 53, 59, 59, 59, 59 + }, + {/* level 3 */ + 16, 11, 11, 16, 23, 27, 31, 30, + 11, 12, 12, 15, 20, 23, 23, 30, + 11, 12, 13, 16, 23, 26, 35, 47, + 16, 15, 16, 23, 26, 37, 47, 64, + 23, 20, 23, 26, 39, 51, 64, 64, + 27, 23, 26, 37, 51, 64, 64, 64, + 31, 23, 35, 47, 64, 64, 64, 64, + 30, 30, 47, 64, 64, 64, 64, 64 + }, + {/*level 4 - low quality */ + 20, 16, 25, 39, 50, 46, 62, 68, + 16, 18, 23, 38, 38, 53, 65, 68, + 25, 23, 31, 38, 53, 65, 68, 68, + 39, 38, 38, 53, 65, 68, 68, 68, + 50, 38, 53, 65, 68, 68, 68, 68, + 46, 53, 65, 68, 68, 68, 68, 68, + 62, 65, 68, 68, 68, 68, 68, 68, + 68, 68, 68, 68, 68, 68, 68, 68 + } +}; + +static const unsigned char qtbl_chrominance[4][64] = { + {/* level 1 - high quality */ + 9, 8, 9, 11, 14, 17, 19, 24, + 8, 10, 9, 11, 14, 13, 17, 22, + 9, 9, 13, 14, 13, 15, 23, 26, + 11, 11, 14, 14, 15, 20, 26, 33, + 14, 14, 13, 15, 20, 24, 33, 39, + 17, 13, 15, 20, 24, 32, 39, 39, + 19, 17, 23, 26, 33, 39, 39, 39, + 24, 22, 26, 33, 39, 39, 39, 39 + }, + {/* level 2 */ + 13, 11, 13, 16, 20, 20, 29, 37, + 11, 14, 14, 14, 16, 20, 26, 32, + 13, 14, 15, 17, 20, 23, 35, 40, + 16, 14, 17, 21, 23, 30, 40, 50, + 20, 16, 20, 23, 30, 37, 50, 59, + 20, 20, 23, 30, 37, 48, 59, 59, + 29, 26, 35, 40, 50, 59, 59, 59, + 37, 32, 40, 50, 59, 59, 59, 59 + }, + {/* level 3 */ + 17, 15, 17, 21, 20, 26, 38, 48, + 15, 19, 18, 17, 20, 26, 35, 43, + 17, 18, 20, 22, 26, 30, 46, 53, + 21, 17, 22, 28, 30, 39, 53, 64, + 20, 20, 26, 30, 39, 48, 64, 64, + 26, 26, 30, 39, 48, 63, 64, 64, + 38, 35, 46, 53, 64, 64, 64, 64, + 48, 43, 53, 64, 64, 64, 64, 64 + }, + {/*level 4 - low quality */ + 21, 25, 32, 38, 54, 68, 68, 68, + 25, 28, 24, 38, 54, 68, 68, 68, + 32, 24, 32, 43, 66, 68, 68, 68, + 38, 38, 43, 53, 68, 68, 68, 68, + 54, 54, 66, 68, 68, 68, 68, 68, + 68, 68, 68, 68, 68, 68, 68, 68, + 68, 68, 68, 68, 68, 68, 68, 68, + 68, 68, 68, 68, 68, 68, 68, 68 + } +}; + +static const unsigned char hdctbl0[16] = { + 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 +}; + +static const unsigned char hdctblg0[12] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb +}; +static const unsigned char hactbl0[16] = { + 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d +}; +static const unsigned char hactblg0[162] = { + 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, + 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, + 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, + 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, + 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, + 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, + 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, + 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, + 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, + 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, + 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, + 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, + 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, + 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, + 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, + 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, + 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, + 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, + 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, + 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, + 0xf9, 0xfa +}; + +static inline void jpeg_reset(void __iomem *regs) +{ + unsigned long reg; + + w(1, S5P_JPG_SW_RESET); + /* no other way but polling for when JPEG IP becomes operational */ + do + reg = r(S5P_JPG_SW_RESET); + while (reg != 0); +} + +static inline void jpeg_poweron(void __iomem *regs) +{ + w(S5P_POWER_ON, S5P_JPGCLKCON); +} + +static inline void jpeg_input_raw_mode(void __iomem *regs, unsigned long mode) +{ + unsigned long reg, m; + + m = S5P_MOD_SEL_565; + if (mode == S5P_JPEG_RAW_IN_565) + m = S5P_MOD_SEL_565; + else if (mode == S5P_JPEG_RAW_IN_422) + m = S5P_MOD_SEL_422; + + reg = r(S5P_JPGCMOD); + reg &= S5P_MOD_SEL_CLR; + reg |= m; + w(reg, S5P_JPGCMOD); +} + +static inline void jpeg_input_raw_y16(void __iomem *regs, bool y16) +{ + unsigned long reg; + + reg = r(S5P_JPGCMOD); + if (y16) + reg |= S5P_MODE_Y16; + else + reg &= S5P_MODE_Y16_CLR; + w(reg, S5P_JPGCMOD); +} + +static inline void jpeg_proc_mode(void __iomem *regs, unsigned long mode) +{ + unsigned long reg, m; + + m = S5P_PROC_MODE_DECOMPR; + if (mode == S5P_JPEG_ENCODE) + m = S5P_PROC_MODE_COMPR; + else + m = S5P_PROC_MODE_DECOMPR; + reg = r(S5P_JPGMOD); + reg &= S5P_PROC_MODE_CLR; + reg |= m; + w(reg, S5P_JPGMOD); +} + +static inline void jpeg_subsampling_mode(void __iomem *regs, unsigned long mode) +{ + unsigned long reg, m; + + m = S5P_SUBSAMPLING_MODE_422; + if (mode == S5P_JPEG_SUBSAMPLING_422) + m = S5P_SUBSAMPLING_MODE_422; + else if (mode == S5P_JPEG_SUBSAMPLING_420) + m = S5P_SUBSAMPLING_MODE_420; + reg = r(S5P_JPGMOD); + reg &= S5P_SUBSAMPLING_MODE_CLR; + reg |= m; + w(reg, S5P_JPGMOD); +} + +static inline void jpeg_dri(void __iomem *regs, unsigned short dri) +{ + unsigned long reg; + + reg = r(S5P_JPGDRI_U); + reg &= S5P_JPGDRI_U_CLR; + reg |= S5P_JPGDRI_U_W(dri); + w(reg, S5P_JPGDRI_U); + + reg = r(S5P_JPGDRI_L); + reg &= S5P_JPGDRI_L_CLR; + reg |= S5P_JPGDRI_L_W(dri); + w(reg, S5P_JPGDRI_L); +} + +static inline void jpeg_qtbl4(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_QTBL); + reg &= S5P_QT_NUM4_CLR; + reg |= S5P_QT_NUM4_W(n); + w(reg, S5P_JPG_QTBL); +} + +static inline void jpeg_qtbl3(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_QTBL); + reg &= S5P_QT_NUM3_CLR; + reg |= S5P_QT_NUM3_W(n); + w(reg, S5P_JPG_QTBL); +} + +static inline void jpeg_qtbl2(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_QTBL); + reg &= S5P_QT_NUM2_CLR; + reg |= S5P_QT_NUM2_W(n); + w(reg, S5P_JPG_QTBL); +} + +static inline void jpeg_qtbl1(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_QTBL); + reg &= S5P_QT_NUM1_CLR; + reg |= S5P_QT_NUM1_W(n); + w(reg, S5P_JPG_QTBL); +} + +static inline void jpeg_htbl4_ac(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM4_AC_CLR; + reg |= S5P_HT_NUM4_AC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl4_dc(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM4_DC_CLR; + reg |= S5P_HT_NUM4_DC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl3_ac(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM3_AC_CLR; + reg |= S5P_HT_NUM3_AC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl3_dc(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM3_DC_CLR; + reg |= S5P_HT_NUM3_DC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl2_ac(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM2_AC_CLR; + reg |= S5P_HT_NUM2_AC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl2_dc(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM2_DC_CLR; + reg |= S5P_HT_NUM2_DC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl1_ac(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM1_AC_CLR; + reg |= S5P_HT_NUM1_AC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_htbl1_dc(void __iomem *regs, unsigned short n) +{ + unsigned long reg; + + reg = r(S5P_JPG_HTBL); + reg &= S5P_HT_NUM1_DC_CLR; + reg |= S5P_HT_NUM1_DC_W(n); + w(reg, S5P_JPG_HTBL); +} + +static inline void jpeg_y(void __iomem *regs, unsigned short y) +{ + unsigned long reg; + + reg = r(S5P_JPGY_U); + reg &= S5P_VER_RES_U_CLR; + reg |= S5P_VER_RES_U_W(y); + w(reg, S5P_JPGY_U); + + reg = r(S5P_JPGY_L); + reg &= S5P_VER_RES_L_CLR; + reg |= S5P_VER_RES_L_W(y); + w(reg, S5P_JPGY_L); +} + +static inline void jpeg_x(void __iomem *regs, unsigned short x) +{ + unsigned long reg; + + reg = r(S5P_JPGX_U); + reg &= S5P_HOR_RES_U_CLR; + reg |= S5P_HOR_RES_U_W(x); + w(reg, S5P_JPGX_U); + + reg = r(S5P_JPGX_L); + reg &= S5P_HOR_RES_L_CLR; + reg |= S5P_HOR_RES_L_W(x); + w(reg, S5P_JPGX_L); +} + +static inline void jpeg_rst_int_enable(void __iomem *regs, bool enable) +{ + unsigned long reg; + + reg = r(S5P_JPGINTSE); + reg &= S5P_RSTm_INT_EN_CLR; + if (enable) + reg |= S5P_RSTm_INT_EN; + w(reg, S5P_JPGINTSE); +} + +static inline void jpeg_data_num_int_enable(void __iomem *regs, bool enable) +{ + unsigned long reg; + + reg = r(S5P_JPGINTSE); + reg &= S5P_DATA_NUM_INT_EN_CLR; + if (enable) + reg |= S5P_DATA_NUM_INT_EN; + w(reg, S5P_JPGINTSE); +} + +static inline void jpeg_final_mcu_num_int_enable(void __iomem *regs, bool enbl) +{ + unsigned long reg; + + reg = r(S5P_JPGINTSE); + reg &= S5P_FINAL_MCU_NUM_INT_EN_CLR; + if (enbl) + reg |= S5P_FINAL_MCU_NUM_INT_EN; + w(reg, S5P_JPGINTSE); +} + +static inline void jpeg_timer_enable(void __iomem *regs, unsigned long val) +{ + unsigned long reg; + + reg = r(S5P_JPG_TIMER_SE); + reg |= S5P_TIMER_INT_EN; + reg &= S5P_TIMER_INIT_CLR; + reg |= S5P_TIMER_INIT_W(val); + w(reg, S5P_JPG_TIMER_SE); +} + +static inline void jpeg_timer_disable(void __iomem *regs) +{ + unsigned long reg; + + reg = r(S5P_JPG_TIMER_SE); + reg &= S5P_TIMER_INT_EN_CLR; + w(reg, S5P_JPG_TIMER_SE); +} + +static inline int jpeg_timer_stat(void __iomem *regs) +{ + return (int)S5P_TIMER_INT_STAT_R(r(S5P_JPG_TIMER_ST)); +} + +static inline void jpeg_clear_timer_stat(void __iomem *regs) +{ + unsigned long reg; + + reg = r(S5P_JPG_TIMER_SE); + reg &= S5P_TIMER_INT_STAT_CLR; + w(reg, S5P_JPG_TIMER_SE); +} + +static inline void jpeg_enc_stream_int(void __iomem *regs, unsigned long size) +{ + unsigned long reg; + + reg = r(S5P_JPG_ENC_STREAM_INTSE); + reg &= S5P_ENC_STREAM_BOUND_CLR; + reg |= S5P_ENC_STREAM_INT_EN; + reg |= S5P_ENC_STREAM_BOUND_W(size); + w(reg, S5P_JPG_ENC_STREAM_INTSE); +} + +static inline int jpeg_enc_stream_stat(void __iomem *regs) +{ + return (int)S5P_ENC_STREAM_INT_STAT_R(r(S5P_JPG_ENC_STREAM_INTST)); +} + +static inline void jpeg_clear_enc_stream_stat(void __iomem *regs) +{ + unsigned long reg; + + reg = r(S5P_JPG_ENC_STREAM_INTSE); + reg &= S5P_ENC_STREAM_INT_CLR; + w(reg, S5P_JPG_ENC_STREAM_INTSE); +} + +static inline void jpeg_outform_raw(void __iomem *regs, unsigned long format) +{ + unsigned long reg, f; + + f = S5P_DEC_OUT_FORMAT_422; + if (format == S5P_JPEG_RAW_OUT_422) + f = S5P_DEC_OUT_FORMAT_422; + else if (format == S5P_JPEG_RAW_OUT_420) + f = S5P_DEC_OUT_FORMAT_420; + reg = r(S5P_JPG_OUTFORM); + reg &= S5P_DEC_OUT_FORMAT_CLR; + reg |= f; + w(reg, S5P_JPG_OUTFORM); +} + +static inline void jpeg_jpgadr(void __iomem *regs, unsigned long addr) +{ + w(addr, S5P_JPG_JPGADR); +} + +static inline void jpeg_imgadr(void __iomem *regs, unsigned long addr) +{ + w(addr, S5P_JPG_IMGADR); +} + +static inline void jpeg_coef11(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF1); + reg &= S5P_COEF11_CLR; + reg |= S5P_COEF11_W(coef); + w(reg, S5P_JPG_COEF1); +} + +static inline void jpeg_coef12(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF1); + reg &= S5P_COEF12_CLR; + reg |= S5P_COEF12_W(coef); + w(reg, S5P_JPG_COEF1); +} + +static inline void jpeg_coef13(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF1); + reg &= S5P_COEF13_CLR; + reg |= S5P_COEF13_W(coef); + w(reg, S5P_JPG_COEF1); +} + +static inline void jpeg_coef21(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF2); + reg &= S5P_COEF21_CLR; + reg |= S5P_COEF21_W(coef); + w(reg, S5P_JPG_COEF2); +} + +static inline void jpeg_coef22(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF2); + reg &= S5P_COEF22_CLR; + reg |= S5P_COEF22_W(coef); + w(reg, S5P_JPG_COEF2); +} + +static inline void jpeg_coef23(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF2); + reg &= S5P_COEF23_CLR; + reg |= S5P_COEF23_W(coef); + w(reg, S5P_JPG_COEF2); +} + +static inline void jpeg_coef31(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF3); + reg &= S5P_COEF31_CLR; + reg |= S5P_COEF31_W(coef); + w(reg, S5P_JPG_COEF3); +} + +static inline void jpeg_coef32(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF3); + reg &= S5P_COEF32_CLR; + reg |= S5P_COEF32_W(coef); + w(reg, S5P_JPG_COEF3); +} + +static inline void jpeg_coef33(void __iomem *regs, unsigned short coef) +{ + unsigned long reg; + + reg = r(S5P_JPG_COEF3); + reg &= S5P_COEF33_CLR; + reg |= S5P_COEF33_W(coef); + w(reg, S5P_JPG_COEF3); +} + +static inline void jpeg_start(void __iomem *regs) +{ + w(1, S5P_JSTART); +} + +static inline int jpeg_result_stat_ok(void __iomem *regs) +{ + return (int)S5P_RESULT_STAT_R(r(S5P_JPGINTST)); +} + +static inline int jpeg_stream_stat_ok(void __iomem *regs) +{ + return !(int)S5P_STREAM_STAT_R(r(S5P_JPGINTST)); +} + +static inline void jpeg_clear_int(void __iomem *regs) +{ + unsigned long reg; + + reg = r(S5P_JPGINTST); + w(S5P_INT_RELEASE, S5P_JPGCOM); + reg = r(S5P_JPGOPR); +} + +static inline void jpeg_set_qtbl(void __iomem *regs, const unsigned char *qtbl, + unsigned long tab, int len) +{ + int i; + + for (i = 0; i < len; i++) + w((unsigned int)qtbl[i], tab + (i * 0x04)); +} + +static inline void jpeg_set_qtbl_lum(void __iomem *regs, int tab, int quality) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_QTBL0; + break; + case 1: + t = S5P_JPG_QTBL1; + break; + case 2: + t = S5P_JPG_QTBL2; + break; + case 3: + t = S5P_JPG_QTBL3; + break; + } + + jpeg_set_qtbl(regs, qtbl_luminance[quality], t, + ARR_SIZE(qtbl_luminance[quality])); +} + +static inline void jpeg_set_qtbl_chr(void __iomem *regs, int tab, int quality) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_QTBL0; + break; + case 1: + t = S5P_JPG_QTBL1; + break; + case 2: + t = S5P_JPG_QTBL2; + break; + case 3: + t = S5P_JPG_QTBL3; + break; + } + + jpeg_set_qtbl(regs, qtbl_chrominance[quality], t, + ARR_SIZE(qtbl_chrominance[quality])); +} + +static inline void jpeg_set_htbl(void __iomem *regs, const unsigned char *htbl, + unsigned long tab, int len) +{ + int i; + + for (i = 0; i < len; i++) + w((unsigned int)htbl[i], tab + (i * 0x04)); +} + +static inline void jpeg_set_hdctbl(void __iomem *regs, int tab) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_HDCTBL0; + break; + case 1: + t = S5P_JPG_HDCTBL1; + break; + } + + jpeg_set_htbl(regs, hdctbl0, t, ARR_SIZE(hdctbl0)); +} + +static inline void jpeg_set_hdctblg(void __iomem *regs, int tab) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_HDCTBLG0; + break; + case 1: + t = S5P_JPG_HDCTBLG1; + break; + } + + jpeg_set_htbl(regs, hdctblg0, t, ARR_SIZE(hdctblg0)); +} + +static inline void jpeg_set_hactbl(void __iomem *regs, int tab) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_HACTBL0; + break; + case 1: + t = S5P_JPG_HACTBL1; + break; + } + + jpeg_set_htbl(regs, hactbl0, t, ARR_SIZE(hactbl0)); +} + +static inline void jpeg_set_hactblg(void __iomem *regs, int tab) +{ + unsigned long t = 0; + + switch (tab) { + case 0: + t = S5P_JPG_HACTBLG0; + break; + case 1: + t = S5P_JPG_HACTBLG1; + break; + } + + jpeg_set_htbl(regs, hactblg0, t, ARRAY_SIZE(hactblg0)); +} + +static inline int jpeg_compressed_size(void __iomem *regs) +{ + unsigned long jpeg_size = 0; + + jpeg_size |= S5P_BYTE_CNT_U_R(r(S5P_JPGCNT_U)); + jpeg_size |= S5P_BYTE_CNT_M_R(r(S5P_JPGCNT_M)); + jpeg_size |= S5P_BYTE_CNT_L_R(r(S5P_JPGCNT_L)); + + return (int)jpeg_size; +} + +#endif /* JPEG_HW_H_ */ diff --git a/drivers/media/video/s5p-jpeg/jpeg-regs.h b/drivers/media/video/s5p-jpeg/jpeg-regs.h new file mode 100644 index 0000000..119219f --- /dev/null +++ b/drivers/media/video/s5p-jpeg/jpeg-regs.h @@ -0,0 +1,280 @@ +/* linux/drivers/media/video/s5p-jpeg/jpeg-regs.c + * + * Register definition file for Samsung JPEG codec driver + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> + * + * 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. + */ + +#ifndef JPEG_REGS_H_ +#define JPEG_REGS_H_ + +/* JPEG mode register */ +#define S5P_JPGMOD 0x00 +#define S5P_PROC_MODE_CLR (~(0x1 << 3)) +#define S5P_PROC_MODE_DECOMPR (0x1 << 3) +#define S5P_PROC_MODE_COMPR (0x0 << 3) +#define S5P_SUBSAMPLING_MODE_CLR (~0x7) +#define S5P_SUBSAMPLING_MODE_444 (0x0 << 0) +#define S5P_SUBSAMPLING_MODE_422 (0x1 << 0) +#define S5P_SUBSAMPLING_MODE_420 (0x2 << 0) +#define S5P_SUBSAMPLING_MODE_GRAY (0x3 << 0) + +/* JPEG operation status register */ +#define S5P_JPGOPR 0x04 + +/* Quantization tables*/ +#define S5P_JPG_QTBL 0x08 +#define S5P_QT_NUM4_CLR (~(0x3 << 6)) +#define S5P_QT_NUM3_CLR (~(0x3 << 4)) +#define S5P_QT_NUM2_CLR (~(0x3 << 2)) +#define S5P_QT_NUM1_CLR (~(0x3 << 0)) +#define S5P_QT_NUM4_W(x) (((x) & 0x3) << 6) +#define S5P_QT_NUM3_W(x) (((x) & 0x3) << 4) +#define S5P_QT_NUM2_W(x) (((x) & 0x3) << 2) +#define S5P_QT_NUM1_W(x) (((x) & 0x3) << 0) +#define S5P_QT_NUM4_R(x) (((x) >> 6) & 0x3) +#define S5P_QT_NUM3_R(x) (((x) >> 4) & 0x3) +#define S5P_QT_NUM2_R(x) (((x) >> 2) & 0x3) +#define S5P_QT_NUM1_R(x) (((x) >> 0) & 0x3) + +/* Huffman tables */ +#define S5P_JPG_HTBL 0x0C +#define S5P_HT_NUM4_AC_CLR (~(0x1 << 7)) +#define S5P_HT_NUM4_DC_CLR (~(0x1 << 6)) +#define S5P_HT_NUM3_AC_CLR (~(0x1 << 5)) +#define S5P_HT_NUM3_DC_CLR (~(0x1 << 4)) +#define S5P_HT_NUM2_AC_CLR (~(0x1 << 3)) +#define S5P_HT_NUM2_DC_CLR (~(0x1 << 2)) +#define S5P_HT_NUM1_AC_CLR (~(0x1 << 1)) +#define S5P_HT_NUM1_DC_CLR (~(0x1 << 0)) +#define S5P_HT_NUM4_AC_W(x) (((x) & 0x1) << 7) +#define S5P_HT_NUM4_DC_W(x) (((x) & 0x1) << 6) +#define S5P_HT_NUM3_AC_W(x) (((x) & 0x1) << 5) +#define S5P_HT_NUM3_DC_W(x) (((x) & 0x1) << 4) +#define S5P_HT_NUM2_AC_W(x) (((x) & 0x1) << 3) +#define S5P_HT_NUM2_DC_W(x) (((x) & 0x1) << 2) +#define S5P_HT_NUM1_AC_W(x) (((x) & 0x1) << 1) +#define S5P_HT_NUM1_DC_W(x) (((x) & 0x1) << 0) +#define S5P_HT_NUM4_AC_R(x) (((x) >> 7) & 0x1) +#define S5P_HT_NUM4_DC_R(x) (((x) >> 6) & 0x1) +#define S5P_HT_NUM3_AC_R(x) (((x) >> 5) & 0x1) +#define S5P_HT_NUM3_DC_R(x) (((x) >> 4) & 0x1) +#define S5P_HT_NUM2_AC_R(x) (((x) >> 3) & 0x1) +#define S5P_HT_NUM2_DC_R(x) (((x) >> 2) & 0x1) +#define S5P_HT_NUM1_AC_R(x) (((x) >> 1) & 0x1) +#define S5P_HT_NUM1_DC_R(x) (((x) >> 0) & 0x1) + + +/* JPEG restart interval register upper byte */ +#define S5P_JPGDRI_U 0x10 +#define S5P_JPGDRI_U_CLR (~0xff) +#define S5P_JPGDRI_U_W(x) (((x) >> 8) & 0xff) +#define S5P_JPGDRI_U_R(x) (((x) & 0xff) << 8) + +/* JPEG restart interval register lower byte */ +#define S5P_JPGDRI_L 0x14 +#define S5P_JPGDRI_L_CLR (~0xff) +#define S5P_JPGDRI_L_W(x) (((x) >> 0) & 0xff) +#define S5P_JPGDRI_L_R(x) (((x) & 0xff) << 0) + +/* JPEG vertical resolution register upper byte */ +#define S5P_JPGY_U 0x18 +#define S5P_VER_RES_U_CLR (~0xff) +#define S5P_VER_RES_U_W(x) (((x) >> 8) & 0xff) +#define S5P_VER_RES_U_R(x) (((x) & 0xff) << 8) + +/* JPEG vertical resolution register lower byte */ +#define S5P_JPGY_L 0x1C +#define S5P_VER_RES_L_CLR (~0xff) +#define S5P_VER_RES_L_W(x) (((x) >> 0) & 0xff) +#define S5P_VER_RES_L_R(x) (((x) & 0xff) << 0) + +/* JPEG horizontal resolution register upper byte */ +#define S5P_JPGX_U 0x20 +#define S5P_HOR_RES_U_CLR (~0xff) +#define S5P_HOR_RES_U_W(x) (((x) >> 8) & 0xff) +#define S5P_HOR_RES_U_R(x) (((x) & 0xff) << 8) + +/* JPEG horizontal resolution register lower byte */ +#define S5P_JPGX_L 0x24 +#define S5P_HOR_RES_L_CLR (~0xff) +#define S5P_HOR_RES_L_W(x) (((x) >> 0) & 0xff) +#define S5P_HOR_RES_L_R(x) (((x) & 0xff) << 0) + +/* JPEG byte count register upper byte */ +#define S5P_JPGCNT_U 0x28 +#define S5P_BYTE_CNT_U_CLR (~0xff) +#define S5P_BYTE_CNT_U_W(x) (((x) >> 16) & 0xff) +#define S5P_BYTE_CNT_U_R(x) (((x) & 0xff) << 16) + +/* JPEG byte count register middle byte */ +#define S5P_JPGCNT_M 0x2C +#define S5P_BYTE_CNT_M_CLR (~0xff) +#define S5P_BYTE_CNT_M_W(x) (((x) >> 8) & 0xff) +#define S5P_BYTE_CNT_M_R(x) (((x) & 0xff) << 8) + +/* JPEG byte count register lower byte */ +#define S5P_JPGCNT_L 0x30 +#define S5P_BYTE_CNT_L_CLR (~0xff) +#define S5P_BYTE_CNT_L_W(x) (((x) >> 0) & 0xff) +#define S5P_BYTE_CNT_L_R(x) (((x) & 0xff) << 0) + +/* JPEG interrupt setting register */ +#define S5P_JPGINTSE 0x34 +#define S5P_RSTm_INT_EN_CLR (~(0x1 << 7)) +#define S5P_RSTm_INT_EN (0x1 << 7) +#define S5P_DATA_NUM_INT_EN_CLR (~(0x1 << 6)) +#define S5P_DATA_NUM_INT_EN (0x1 << 6) +#define S5P_FINAL_MCU_NUM_INT_EN_CLR (~(0x1 << 5)) +#define S5P_FINAL_MCU_NUM_INT_EN (0x1 << 5) + +/* JPEG interrupt status register */ +#define S5P_JPGINTST 0x38 +#define S5P_RESULT_STAT_R(x) (((x) >> 6) & 0x1) +#define S5P_STREAM_STAT_R(x) (((x) >> 5) & 0x1) + +/* JPEG command resgister */ +#define S5P_JPGCOM 0x4C +#define S5P_INT_RELEASE (0x1 << 2) + +/* Raw image data r/w address register */ +#define S5P_JPG_IMGADR 0x50 + +/* JPEG file r/w address register */ +#define S5P_JPG_JPGADR 0x58 + +/* Coefficient for RGB-to-YCbCr converter register */ +#define S5P_JPG_COEF1 0x5C +#define S5P_COEF11_CLR (~0xff0000) +#define S5P_COEF11_W(x) (((x) & 0xff) << 16) +#define S5P_COEF11_R(x) (((x) >> 16) & 0xff) +#define S5P_COEF12_CLR (~0xff00) +#define S5P_COEF12_W(x) (((x) & 0xff) << 8) +#define S5P_COEF12_R(x) (((x) >> 8) & 0xff) +#define S5P_COEF13_CLR (~0xff) +#define S5P_COEF13_W(x) (((x) & 0xff) << 0) +#define S5P_COEF13_R(x) (((x) >> 0) & 0xff) + +/* Coefficient for RGB-to-YCbCr converter register */ +#define S5P_JPG_COEF2 0x60 +#define S5P_COEF21_CLR (~0xff0000) +#define S5P_COEF21_W(x) (((x) & 0xff) << 16) +#define S5P_COEF21_R(x) (((x) >> 16) & 0xff) +#define S5P_COEF22_CLR (~0xff00) +#define S5P_COEF22_W(x) (((x) & 0xff) << 8) +#define S5P_COEF22_R(x) (((x) >> 8) & 0xff) +#define S5P_COEF23_CLR (~0xff) +#define S5P_COEF23_W(x) (((x) & 0xff) << 0) +#define S5P_COEF23_R(x) (((x) >> 0) & 0xff) + +/* Coefficient for RGB-to-YCbCr converter register */ +#define S5P_JPG_COEF3 0x64 +#define S5P_COEF31_CLR (~0xff0000) +#define S5P_COEF31_W(x) (((x) & 0xff) << 16) +#define S5P_COEF31_R(x) (((x) >> 16) & 0xff) +#define S5P_COEF32_CLR (~0xff00) +#define S5P_COEF32_W(x) (((x) & 0xff) << 8) +#define S5P_COEF32_R(x) (((x) >> 8) & 0xff) +#define S5P_COEF33_CLR (~0xff) +#define S5P_COEF33_W(x) (((x) & 0xff) << 0) +#define S5P_COEF33_R(x) (((x) >> 0) & 0xff) + +/* JPEG color mode register */ +#define S5P_JPGCMOD 0x68 +#define S5P_MOD_SEL_CLR (~(0x7 << 5)) +#define S5P_MOD_SEL_422 (0x1 << 5) +#define S5P_MOD_SEL_565 (0x2 << 5) +#define S5P_MODE_Y16_CLR (~(0x1 << 1)) +#define S5P_MODE_Y16 (0x1 << 1) + +/* JPEG clock control register */ +#define S5P_JPGCLKCON 0x6C +#define S5P_CLK_DOWN_READY (0x1 << 1) +#define S5P_POWER_ON (0x1 << 0) + +/* JPEG start register */ +#define S5P_JSTART 0x70 + +/* JPEG SW reset register */ +#define S5P_JPG_SW_RESET 0x78 + +/* JPEG timer setting register */ +#define S5P_JPG_TIMER_SE 0x7C +#define S5P_TIMER_INT_EN (0x1 << 31) +#define S5P_TIMER_INT_EN_CLR (~(0x1 << 31)) +#define S5P_TIMER_INIT_CLR (~0x7fffffff) +#define S5P_TIMER_INIT_W(x) (((x) & 0x7fffffff) << 0) +#define S5P_TIMER_INIT_R(x) (((x) >> 0) & 0x7fffffff) + +/* JPEG timer status register */ +#define S5P_JPG_TIMER_ST 0x80 +#define S5P_TIMER_INT_STAT_R(x) (((x) >> 31) & 0x1) +#define S5P_TIMER_INT_STAT_CLR (~(0x1 << 31)) +#define S5P_TIMER_CNT_R(x) (((x) >> 0) & 0x7fffffff) + +/* JPEG decompression output format register */ +#define S5P_JPG_OUTFORM 0x88 +#define S5P_DEC_OUT_FORMAT_CLR (~(0x1 << 0)) +#define S5P_DEC_OUT_FORMAT_422 (0x0 << 0) +#define S5P_DEC_OUT_FORMAT_420 (0x1 << 0) + +/* JPEG version resgister */ +#define S5P_JPG_VERSION 0x8C + +/* JPEG compressed stream size interrupt setting register */ +#define S5P_JPG_ENC_STREAM_INTSE 0x98 +#define S5P_ENC_STREAM_INT_CLR (~(0x1 << 24)) +#define S5P_ENC_STREAM_INT_EN (0x1 << 24) +#define S5P_ENC_STREAM_BOUND_CLR (~0xffffff) +#define S5P_ENC_STREAM_BOUND_W(x) (((x) & 0xffffff) << 0) +#define S5P_ENC_STREAM_BOUND_R(x) (((x) >> 0) & 0xffffff) + +/* JPEG compressed stream size interrupt status register */ +#define S5P_JPG_ENC_STREAM_INTST 0x9C +#define S5P_ENC_STREAM_INT_STAT_R(x) ((x) & (0x1 << 0)) + +/* JPEG quantizer table 0 register */ +#define S5P_JPG_QTBL0 0x400 + +/* JPEG quantizer table 1 register */ +#define S5P_JPG_QTBL1 0x500 + +/* JPEG quantizer table 2 register */ +#define S5P_JPG_QTBL2 0x600 + +/* JPEG quantizer table 3 register */ +#define S5P_JPG_QTBL3 0x700 + +/* JPEG DC Huffman table 0 register */ +#define S5P_JPG_HDCTBL0 0x800 + +/* JPEG DC Huffman table 0 register */ +#define S5P_JPG_HDCTBLG0 0x840 + +/* JPEG AC Huffman table 0 register */ +#define S5P_JPG_HACTBL0 0x880 + +/* JPEG AC Huffman table 0 register */ +#define S5P_JPG_HACTBLG0 0x8C0 + +/* JPEG DC Huffman table 1 register */ +#define S5P_JPG_HDCTBL1 0xC00 + +/* JPEG DC Huffman table 1 register */ +#define S5P_JPG_HDCTBLG1 0xC40 + +/* JPEG AC Huffman table 1 register */ +#define S5P_JPG_HACTBL1 0xC80 + +/* JPEG AC Huffman table 1 register */ +#define S5P_JPG_HACTBLG1 0xCC0 + +#endif /* JPEG_REGS_H_ */ + -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
