diff options
Diffstat (limited to 'drivers/media/platform/exynos-gsc/gsc-core.c')
| -rw-r--r-- | drivers/media/platform/exynos-gsc/gsc-core.c | 1256 |
1 files changed, 0 insertions, 1256 deletions
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c deleted file mode 100644 index 559fab2a2d67..000000000000 --- a/drivers/media/platform/exynos-gsc/gsc-core.c +++ /dev/null @@ -1,1256 +0,0 @@ -/* - * Copyright (c) 2011 - 2012 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Samsung EXYNOS5 SoC series G-Scaler driver - * - * 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/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/bug.h> -#include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/list.h> -#include <linux/io.h> -#include <linux/slab.h> -#include <linux/clk.h> -#include <linux/of.h> -#include <media/v4l2-ioctl.h> - -#include "gsc-core.h" - -#define GSC_CLOCK_GATE_NAME "gscl" - -static const struct gsc_fmt gsc_formats[] = { - { - .name = "RGB565", - .pixelformat = V4L2_PIX_FMT_RGB565X, - .depth = { 16 }, - .color = GSC_RGB, - .num_planes = 1, - .num_comp = 1, - }, { - .name = "XRGB-8-8-8-8, 32 bpp", - .pixelformat = V4L2_PIX_FMT_RGB32, - .depth = { 32 }, - .color = GSC_RGB, - .num_planes = 1, - .num_comp = 1, - }, { - .name = "YUV 4:2:2 packed, YCbYCr", - .pixelformat = V4L2_PIX_FMT_YUYV, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 1, - .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, - }, { - .name = "YUV 4:2:2 packed, CbYCrY", - .pixelformat = V4L2_PIX_FMT_UYVY, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_C, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 1, - .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, - }, { - .name = "YUV 4:2:2 packed, CrYCbY", - .pixelformat = V4L2_PIX_FMT_VYUY, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_C, - .corder = GSC_CRCB, - .num_planes = 1, - .num_comp = 1, - .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8, - }, { - .name = "YUV 4:2:2 packed, YCrYCb", - .pixelformat = V4L2_PIX_FMT_YVYU, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_Y, - .corder = GSC_CRCB, - .num_planes = 1, - .num_comp = 1, - .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8, - }, { - .name = "YUV 4:4:4 planar, YCbYCr", - .pixelformat = V4L2_PIX_FMT_YUV32, - .depth = { 32 }, - .color = GSC_YUV444, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 1, - }, { - .name = "YUV 4:2:2 planar, Y/Cb/Cr", - .pixelformat = V4L2_PIX_FMT_YUV422P, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 3, - }, { - .name = "YUV 4:2:2 planar, Y/CbCr", - .pixelformat = V4L2_PIX_FMT_NV16, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 2, - }, { - .name = "YUV 4:2:2 planar, Y/CrCb", - .pixelformat = V4L2_PIX_FMT_NV61, - .depth = { 16 }, - .color = GSC_YUV422, - .yorder = GSC_LSB_Y, - .corder = GSC_CRCB, - .num_planes = 1, - .num_comp = 2, - }, { - .name = "YUV 4:2:0 planar, YCbCr", - .pixelformat = V4L2_PIX_FMT_YUV420, - .depth = { 12 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 3, - }, { - .name = "YUV 4:2:0 planar, YCrCb", - .pixelformat = V4L2_PIX_FMT_YVU420, - .depth = { 12 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CRCB, - .num_planes = 1, - .num_comp = 3, - - }, { - .name = "YUV 4:2:0 planar, Y/CbCr", - .pixelformat = V4L2_PIX_FMT_NV12, - .depth = { 12 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 1, - .num_comp = 2, - }, { - .name = "YUV 4:2:0 planar, Y/CrCb", - .pixelformat = V4L2_PIX_FMT_NV21, - .depth = { 12 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CRCB, - .num_planes = 1, - .num_comp = 2, - }, { - .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr", - .pixelformat = V4L2_PIX_FMT_NV12M, - .depth = { 8, 4 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 2, - .num_comp = 2, - }, { - .name = "YUV 4:2:0 non-contig. 3p, Y/Cb/Cr", - .pixelformat = V4L2_PIX_FMT_YUV420M, - .depth = { 8, 2, 2 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 3, - .num_comp = 3, - }, { - .name = "YUV 4:2:0 non-contig. 3p, Y/Cr/Cb", - .pixelformat = V4L2_PIX_FMT_YVU420M, - .depth = { 8, 2, 2 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CRCB, - .num_planes = 3, - .num_comp = 3, - }, { - .name = "YUV 4:2:0 n.c. 2p, Y/CbCr tiled", - .pixelformat = V4L2_PIX_FMT_NV12MT_16X16, - .depth = { 8, 4 }, - .color = GSC_YUV420, - .yorder = GSC_LSB_Y, - .corder = GSC_CBCR, - .num_planes = 2, - .num_comp = 2, - } -}; - -const struct gsc_fmt *get_format(int index) -{ - if (index >= ARRAY_SIZE(gsc_formats)) - return NULL; - - return (struct gsc_fmt *)&gsc_formats[index]; -} - -const struct gsc_fmt *find_fmt(u32 *pixelformat, u32 *mbus_code, u32 index) -{ - const struct gsc_fmt *fmt, *def_fmt = NULL; - unsigned int i; - - if (index >= ARRAY_SIZE(gsc_formats)) - return NULL; - - for (i = 0; i < ARRAY_SIZE(gsc_formats); ++i) { - fmt = get_format(i); - if (pixelformat && fmt->pixelformat == *pixelformat) - return fmt; - if (mbus_code && fmt->mbus_code == *mbus_code) - return fmt; - if (index == i) - def_fmt = fmt; - } - return def_fmt; - -} - -void gsc_set_frame_size(struct gsc_frame *frame, int width, int height) -{ - frame->f_width = width; - frame->f_height = height; - frame->crop.width = width; - frame->crop.height = height; - frame->crop.left = 0; - frame->crop.top = 0; -} - -int gsc_cal_prescaler_ratio(struct gsc_variant *var, u32 src, u32 dst, - u32 *ratio) -{ - if ((dst > src) || (dst >= src / var->poly_sc_down_max)) { - *ratio = 1; - return 0; - } - - if ((src / var->poly_sc_down_max / var->pre_sc_down_max) > dst) { - pr_err("Exceeded maximum downscaling ratio (1/16))"); - return -EINVAL; - } - - *ratio = (dst > (src / 8)) ? 2 : 4; - - return 0; -} - -void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *sh) -{ - if (hratio == 4 && vratio == 4) - *sh = 4; - else if ((hratio == 4 && vratio == 2) || - (hratio == 2 && vratio == 4)) - *sh = 3; - else if ((hratio == 4 && vratio == 1) || - (hratio == 1 && vratio == 4) || - (hratio == 2 && vratio == 2)) - *sh = 2; - else if (hratio == 1 && vratio == 1) - *sh = 0; - else - *sh = 1; -} - -void gsc_check_src_scale_info(struct gsc_variant *var, - struct gsc_frame *s_frame, u32 *wratio, - u32 tx, u32 ty, u32 *hratio) -{ - int remainder = 0, walign, halign; - - if (is_yuv420(s_frame->fmt->color)) { - walign = GSC_SC_ALIGN_4; - halign = GSC_SC_ALIGN_4; - } else if (is_yuv422(s_frame->fmt->color)) { - walign = GSC_SC_ALIGN_4; - halign = GSC_SC_ALIGN_2; - } else { - walign = GSC_SC_ALIGN_2; - halign = GSC_SC_ALIGN_2; - } - - remainder = s_frame->crop.width % (*wratio * walign); - if (remainder) { - s_frame->crop.width -= remainder; - gsc_cal_prescaler_ratio(var, s_frame->crop.width, tx, wratio); - pr_info("cropped src width size is recalculated from %d to %d", - s_frame->crop.width + remainder, s_frame->crop.width); - } - - remainder = s_frame->crop.height % (*hratio * halign); - if (remainder) { - s_frame->crop.height -= remainder; - gsc_cal_prescaler_ratio(var, s_frame->crop.height, ty, hratio); - pr_info("cropped src height size is recalculated from %d to %d", - s_frame->crop.height + remainder, s_frame->crop.height); - } -} - -int gsc_enum_fmt_mplane(struct v4l2_fmtdesc *f) -{ - const struct gsc_fmt *fmt; - - fmt = find_fmt(NULL, NULL, f->index); - if (!fmt) - return -EINVAL; - - strlcpy(f->description, fmt->name, sizeof(f->description)); - f->pixelformat = fmt->pixelformat; - - return 0; -} - -static u32 get_plane_info(struct gsc_frame *frm, u32 addr, u32 *index) -{ - if (frm->addr.y == addr) { - *index = 0; - return frm->addr.y; - } else if (frm->addr.cb == addr) { - *index = 1; - return frm->addr.cb; - } else if (frm->addr.cr == addr) { - *index = 2; - return frm->addr.cr; - } else { - pr_err("Plane address is wrong"); - return -EINVAL; - } -} - -void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame *frm) -{ - u32 f_chk_addr, f_chk_len, s_chk_addr, s_chk_len; - f_chk_addr = f_chk_len = s_chk_addr = s_chk_len = 0; - - f_chk_addr = frm->addr.y; - f_chk_len = frm->payload[0]; - if (frm->fmt->num_planes == 2) { - s_chk_addr = frm->addr.cb; - s_chk_len = frm->payload[1]; - } else if (frm->fmt->num_planes == 3) { - u32 low_addr, low_plane, mid_addr, mid_plane; - u32 high_addr, high_plane; - u32 t_min, t_max; - - t_min = min3(frm->addr.y, frm->addr.cb, frm->addr.cr); - low_addr = get_plane_info(frm, t_min, &low_plane); - t_max = max3(frm->addr.y, frm->addr.cb, frm->addr.cr); - high_addr = get_plane_info(frm, t_max, &high_plane); - - mid_plane = 3 - (low_plane + high_plane); - if (mid_plane == 0) - mid_addr = frm->addr.y; - else if (mid_plane == 1) - mid_addr = frm->addr.cb; - else if (mid_plane == 2) - mid_addr = frm->addr.cr; - else - return; - - f_chk_addr = low_addr; - if (mid_addr + frm->payload[mid_plane] - low_addr > - high_addr + frm->payload[high_plane] - mid_addr) { - f_chk_len = frm->payload[low_plane]; - s_chk_addr = mid_addr; - s_chk_len = high_addr + - frm->payload[high_plane] - mid_addr; - } else { - f_chk_len = mid_addr + - frm->payload[mid_plane] - low_addr; - s_chk_addr = high_addr; - s_chk_len = frm->payload[high_plane]; - } - } - pr_debug("f_addr = 0x%08x, f_len = %d, s_addr = 0x%08x, s_len = %d\n", - f_chk_addr, f_chk_len, s_chk_addr, s_chk_len); -} - -int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f) -{ - struct gsc_dev *gsc = ctx->gsc_dev; - struct gsc_variant *variant = gsc->variant; - struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; - const struct gsc_fmt *fmt; - u32 max_w, max_h, mod_x, mod_y; - u32 min_w, min_h, tmp_w, tmp_h; - int i; - - pr_debug("user put w: %d, h: %d", pix_mp->width, pix_mp->height); - - fmt = find_fmt(&pix_mp->pixelformat, NULL, 0); - if (!fmt) { - pr_err("pixelformat format (0x%X) invalid\n", - pix_mp->pixelformat); - return -EINVAL; - } - - if (pix_mp->field == V4L2_FIELD_ANY) - pix_mp->field = V4L2_FIELD_NONE; - else if (pix_mp->field != V4L2_FIELD_NONE) { - pr_err("Not supported field order(%d)\n", pix_mp->field); - return -EINVAL; - } - - max_w = variant->pix_max->target_rot_dis_w; - max_h = variant->pix_max->target_rot_dis_h; - - mod_x = ffs(variant->pix_align->org_w) - 1; - if (is_yuv420(fmt->color)) - mod_y = ffs(variant->pix_align->org_h) - 1; - else - mod_y = ffs(variant->pix_align->org_h) - 2; - - if (V4L2_TYPE_IS_OUTPUT(f->type)) { - min_w = variant->pix_min->org_w; - min_h = variant->pix_min->org_h; - } else { - min_w = variant->pix_min->target_rot_dis_w; - min_h = variant->pix_min->target_rot_dis_h; - } - - pr_debug("mod_x: %d, mod_y: %d, max_w: %d, max_h = %d", - mod_x, mod_y, max_w, max_h); - - /* To check if image size is modified to adjust parameter against - hardware abilities */ - tmp_w = pix_mp->width; - tmp_h = pix_mp->height; - - v4l_bound_align_image(&pix_mp->width, min_w, max_w, mod_x, - &pix_mp->height, min_h, max_h, mod_y, 0); - if (tmp_w != pix_mp->width || tmp_h != pix_mp->height) - pr_info("Image size has been modified from %dx%d to %dx%d", - tmp_w, tmp_h, pix_mp->width, pix_mp->height); - - pix_mp->num_planes = fmt->num_planes; - - if (pix_mp->width >= 1280) /* HD */ - pix_mp->colorspace = V4L2_COLORSPACE_REC709; - else /* SD */ - pix_mp->colorspace = V4L2_COLORSPACE_SMPTE170M; - - - for (i = 0; i < pix_mp->num_planes; ++i) { - int bpl = (pix_mp->width * fmt->depth[i]) >> 3; - pix_mp->plane_fmt[i].bytesperline = bpl; - pix_mp->plane_fmt[i].sizeimage = bpl * pix_mp->height; - - pr_debug("[%d]: bpl: %d, sizeimage: %d", - i, bpl, pix_mp->plane_fmt[i].sizeimage); - } - - return 0; -} - -int gsc_g_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f) -{ - struct gsc_frame *frame; - struct v4l2_pix_format_mplane *pix_mp; - int i; - - frame = ctx_get_frame(ctx, f->type); - if (IS_ERR(frame)) - return PTR_ERR(frame); - - pix_mp = &f->fmt.pix_mp; - - pix_mp->width = frame->f_width; - pix_mp->height = frame->f_height; - pix_mp->field = V4L2_FIELD_NONE; - pix_mp->pixelformat = frame->fmt->pixelformat; - pix_mp->colorspace = V4L2_COLORSPACE_REC709; - pix_mp->num_planes = frame->fmt->num_planes; - - for (i = 0; i < pix_mp->num_planes; ++i) { - pix_mp->plane_fmt[i].bytesperline = (frame->f_width * - frame->fmt->depth[i]) / 8; - pix_mp->plane_fmt[i].sizeimage = - pix_mp->plane_fmt[i].bytesperline * frame->f_height; - } - - return 0; -} - -void gsc_check_crop_change(u32 tmp_w, u32 tmp_h, u32 *w, u32 *h) -{ - if (tmp_w != *w || tmp_h != *h) { - pr_info("Cropped size has been modified from %dx%d to %dx%d", - *w, *h, tmp_w, tmp_h); - *w = tmp_w; - *h = tmp_h; - } -} - -int gsc_g_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr) -{ - struct gsc_frame *frame; - - frame = ctx_get_frame(ctx, cr->type); - if (IS_ERR(frame)) - return PTR_ERR(frame); - - cr->c = frame->crop; - - return 0; -} - -int gsc_try_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr) -{ - struct gsc_frame *f; - struct gsc_dev *gsc = ctx->gsc_dev; - struct gsc_variant *variant = gsc->variant; - u32 mod_x = 0, mod_y = 0, tmp_w, tmp_h; - u32 min_w, min_h, max_w, max_h; - - if (cr->c.top < 0 || cr->c.left < 0) { - pr_err("doesn't support negative values for top & left\n"); - return -EINVAL; - } - pr_debug("user put w: %d, h: %d", cr->c.width, cr->c.height); - - if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - f = &ctx->d_frame; - else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) - f = &ctx->s_frame; - else - return -EINVAL; - - max_w = f->f_width; - max_h = f->f_height; - tmp_w = cr->c.width; - tmp_h = cr->c.height; - - if (V4L2_TYPE_IS_OUTPUT(cr->type)) { - if ((is_yuv422(f->fmt->color) && f->fmt->num_comp == 1) || - is_rgb(f->fmt->color)) - min_w = 32; - else - min_w = 64; - if ((is_yuv422(f->fmt->color) && f->fmt->num_comp == 3) || - is_yuv420(f->fmt->color)) - min_h = 32; - else - min_h = 16; - } else { - if (is_yuv420(f->fmt->color) || is_yuv422(f->fmt->color)) - mod_x = ffs(variant->pix_align->target_w) - 1; - if (is_yuv420(f->fmt->color)) - mod_y = ffs(variant->pix_align->target_h) - 1; - if (ctx->gsc_ctrls.rotate->val == 90 || - ctx->gsc_ctrls.rotate->val == 270) { - max_w = f->f_height; - max_h = f->f_width; - min_w = variant->pix_min->target_rot_en_w; - min_h = variant->pix_min->target_rot_en_h; - tmp_w = cr->c.height; - tmp_h = cr->c.width; - } else { - min_w = variant->pix_min->target_rot_dis_w; - min_h = variant->pix_min->target_rot_dis_h; - } - } - pr_debug("mod_x: %d, mod_y: %d, min_w: %d, min_h = %d", - mod_x, mod_y, min_w, min_h); - pr_debug("tmp_w : %d, tmp_h : %d", tmp_w, tmp_h); - - v4l_bound_align_image(&tmp_w, min_w, max_w, mod_x, - &tmp_h, min_h, max_h, mod_y, 0); - - if (!V4L2_TYPE_IS_OUTPUT(cr->type) && - (ctx->gsc_ctrls.rotate->val == 90 || - ctx->gsc_ctrls.rotate->val == 270)) - gsc_check_crop_change(tmp_h, tmp_w, - &cr->c.width, &cr->c.height); - else - gsc_check_crop_change(tmp_w, tmp_h, - &cr->c.width, &cr->c.height); - - - /* adjust left/top if cropping rectangle is out of bounds */ - /* Need to add code to algin left value with 2's multiple */ - if (cr->c.left + tmp_w > max_w) - cr->c.left = max_w - tmp_w; - if (cr->c.top + tmp_h > max_h) - cr->c.top = max_h - tmp_h; - - if ((is_yuv420(f->fmt->color) || is_yuv422(f->fmt->color)) && - cr->c.left & 1) - cr->c.left -= 1; - - pr_debug("Aligned l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d", - cr->c.left, cr->c.top, cr->c.width, cr->c.height, max_w, max_h); - - return 0; -} - -int gsc_check_scaler_ratio(struct gsc_variant *var, int sw, int sh, int dw, - int dh, int rot, int out_path) -{ - int tmp_w, tmp_h, sc_down_max; - - if (out_path == GSC_DMA) - sc_down_max = var->sc_down_max; - else - sc_down_max = var->local_sc_down; - - if (rot == 90 || rot == 270) { - tmp_w = dh; - tmp_h = dw; - } else { - tmp_w = dw; - tmp_h = dh; - } - - if ((sw / tmp_w) > sc_down_max || - (sh / tmp_h) > sc_down_max || - (tmp_w / sw) > var->sc_up_max || - (tmp_h / sh) > var->sc_up_max) - return -EINVAL; - - return 0; -} - -int gsc_set_scaler_info(struct gsc_ctx *ctx) -{ - struct gsc_scaler *sc = &ctx->scaler; - struct gsc_frame *s_frame = &ctx->s_frame; - struct gsc_frame *d_frame = &ctx->d_frame; - struct gsc_variant *variant = ctx->gsc_dev->variant; - struct device *dev = &ctx->gsc_dev->pdev->dev; - int tx, ty; - int ret; - - ret = gsc_check_scaler_ratio(variant, s_frame->crop.width, - s_frame->crop.height, d_frame->crop.width, d_frame->crop.height, - ctx->gsc_ctrls.rotate->val, ctx->out_path); - if (ret) { - pr_err("out of scaler range"); - return ret; - } - - if (ctx->gsc_ctrls.rotate->val == 90 || - ctx->gsc_ctrls.rotate->val == 270) { - ty = d_frame->crop.width; - tx = d_frame->crop.height; - } else { - tx = d_frame->crop.width; - ty = d_frame->crop.height; - } - - if (tx <= 0 || ty <= 0) { - dev_err(dev, "Invalid target size: %dx%d", tx, ty); - return -EINVAL; - } - - ret = gsc_cal_prescaler_ratio(variant, s_frame->crop.width, - tx, &sc->pre_hratio); - if (ret) { - pr_err("Horizontal scale ratio is out of range"); - return ret; - } - - ret = gsc_cal_prescaler_ratio(variant, s_frame->crop.height, - ty, &sc->pre_vratio); - if (ret) { - pr_err("Vertical scale ratio is out of range"); - return ret; - } - - gsc_check_src_scale_info(variant, s_frame, &sc->pre_hratio, - tx, ty, &sc->pre_vratio); - - gsc_get_prescaler_shfactor(sc->pre_hratio, sc->pre_vratio, - &sc->pre_shfactor); - - sc->main_hratio = (s_frame->crop.width << 16) / tx; - sc->main_vratio = (s_frame->crop.height << 16) / ty; - - pr_debug("scaler input/output size : sx = %d, sy = %d, tx = %d, ty = %d", - s_frame->crop.width, s_frame->crop.height, tx, ty); - pr_debug("scaler ratio info : pre_shfactor : %d, pre_h : %d", - sc->pre_shfactor, sc->pre_hratio); - pr_debug("pre_v :%d, main_h : %d, main_v : %d", - sc->pre_vratio, sc->main_hratio, sc->main_vratio); - - return 0; -} - -static int __gsc_s_ctrl(struct gsc_ctx *ctx, struct v4l2_ctrl *ctrl) -{ - struct gsc_dev *gsc = ctx->gsc_dev; - struct gsc_variant *variant = gsc->variant; - unsigned int flags = GSC_DST_FMT | GSC_SRC_FMT; - int ret = 0; - - if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) - return 0; - - switch (ctrl->id) { - case V4L2_CID_HFLIP: - ctx->hflip = ctrl->val; - break; - - case V4L2_CID_VFLIP: - ctx->vflip = ctrl->val; - break; - - case V4L2_CID_ROTATE: - if ((ctx->state & flags) == flags) { - ret = gsc_check_scaler_ratio(variant, - ctx->s_frame.crop.width, - ctx->s_frame.crop.height, - ctx->d_frame.crop.width, - ctx->d_frame.crop.height, - ctx->gsc_ctrls.rotate->val, - ctx->out_path); - - if (ret) - return -EINVAL; - } - - ctx->rotation = ctrl->val; - break; - - case V4L2_CID_ALPHA_COMPONENT: - ctx->d_frame.alpha = ctrl->val; - break; - } - - ctx->state |= GSC_PARAMS; - return 0; -} - -static int gsc_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct gsc_ctx *ctx = ctrl_to_ctx(ctrl); - unsigned long flags; - int ret; - - spin_lock_irqsave(&ctx->gsc_dev->slock, flags); - ret = __gsc_s_ctrl(ctx, ctrl); - spin_unlock_irqrestore(&ctx->gsc_dev->slock, flags); - - return ret; -} - -static const struct v4l2_ctrl_ops gsc_ctrl_ops = { - .s_ctrl = gsc_s_ctrl, -}; - -int gsc_ctrls_create(struct gsc_ctx *ctx) -{ - if (ctx->ctrls_rdy) { - pr_err("Control handler of this context was created already"); - return 0; - } - - v4l2_ctrl_handler_init(&ctx->ctrl_handler, GSC_MAX_CTRL_NUM); - - ctx->gsc_ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler, - &gsc_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0); - ctx->gsc_ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, - &gsc_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); - ctx->gsc_ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, - &gsc_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); - ctx->gsc_ctrls.global_alpha = v4l2_ctrl_new_std(&ctx->ctrl_handler, - &gsc_ctrl_ops, V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0); - - ctx->ctrls_rdy = ctx->ctrl_handler.error == 0; - - if (ctx->ctrl_handler.error) { - int err = ctx->ctrl_handler.error; - v4l2_ctrl_handler_free(&ctx->ctrl_handler); - pr_err("Failed to create G-Scaler control handlers"); - return err; - } - - return 0; -} - -void gsc_ctrls_delete(struct gsc_ctx *ctx) -{ - if (ctx->ctrls_rdy) { - v4l2_ctrl_handler_free(&ctx->ctrl_handler); - ctx->ctrls_rdy = false; - } -} - -/* The color format (num_comp, num_planes) must be already configured. */ -int gsc_prepare_addr(struct gsc_ctx *ctx, struct vb2_buffer *vb, - struct gsc_frame *frame, struct gsc_addr *addr) -{ - int ret = 0; - u32 pix_size; - - if ((vb == NULL) || (frame == NULL)) - return -EINVAL; - - pix_size = frame->f_width * frame->f_height; - - pr_debug("num_planes= %d, num_comp= %d, pix_size= %d", - frame->fmt->num_planes, frame->fmt->num_comp, pix_size); - - addr->y = vb2_dma_contig_plane_dma_addr(vb, 0); - - if (frame->fmt->num_planes == 1) { - switch (frame->fmt->num_comp) { - case 1: - addr->cb = 0; - addr->cr = 0; - break; - case 2: - /* decompose Y into Y/Cb */ - addr->cb = (dma_addr_t)(addr->y + pix_size); - addr->cr = 0; - break; - case 3: - /* decompose Y into Y/Cb/Cr */ - addr->cb = (dma_addr_t)(addr->y + pix_size); - if (GSC_YUV420 == frame->fmt->color) - addr->cr = (dma_addr_t)(addr->cb - + (pix_size >> 2)); - else /* 422 */ - addr->cr = (dma_addr_t)(addr->cb - + (pix_size >> 1)); - break; - default: - pr_err("Invalid the number of color planes"); - return -EINVAL; - } - } else { - if (frame->fmt->num_planes >= 2) - addr->cb = vb2_dma_contig_plane_dma_addr(vb, 1); - - if (frame->fmt->num_planes == 3) - addr->cr = vb2_dma_contig_plane_dma_addr(vb, 2); - } - - if ((frame->fmt->pixelformat == V4L2_PIX_FMT_VYUY) || - (frame->fmt->pixelformat == V4L2_PIX_FMT_YVYU) || - (frame->fmt->pixelformat == V4L2_PIX_FMT_NV61) || - (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) || - (frame->fmt->pixelformat == V4L2_PIX_FMT_NV21) || - (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420M)) - swap(addr->cb, addr->cr); - - pr_debug("ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d", - addr->y, addr->cb, addr->cr, ret); - - return ret; -} - -static irqreturn_t gsc_irq_handler(int irq, void *priv) -{ - struct gsc_dev *gsc = priv; - struct gsc_ctx *ctx; - int gsc_irq; - - gsc_irq = gsc_hw_get_irq_status(gsc); - gsc_hw_clear_irq(gsc, gsc_irq); - - if (gsc_irq == GSC_IRQ_OVERRUN) { - pr_err("Local path input over-run interrupt has occurred!\n"); - return IRQ_HANDLED; - } - - spin_lock(&gsc->slock); - - if (test_and_clear_bit(ST_M2M_PEND, &gsc->state)) { - - gsc_hw_enable_control(gsc, false); - - if (test_and_clear_bit(ST_M2M_SUSPENDING, &gsc->state)) { - set_bit(ST_M2M_SUSPENDED, &gsc->state); - wake_up(&gsc->irq_queue); - goto isr_unlock; - } - ctx = v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev); - - if (!ctx || !ctx->m2m_ctx) - goto isr_unlock; - - spin_unlock(&gsc->slock); - gsc_m2m_job_finish(ctx, VB2_BUF_STATE_DONE); - - /* wake_up job_abort, stop_streaming */ - if (ctx->state & GSC_CTX_STOP_REQ) { - ctx->state &= ~GSC_CTX_STOP_REQ; - wake_up(&gsc->irq_queue); - } - return IRQ_HANDLED; - } - -isr_unlock: - spin_unlock(&gsc->slock); - return IRQ_HANDLED; -} - -static struct gsc_pix_max gsc_v_100_max = { - .org_scaler_bypass_w = 8192, - .org_scaler_bypass_h = 8192, - .org_scaler_input_w = 4800, - .org_scaler_input_h = 3344, - .real_rot_dis_w = 4800, - .real_rot_dis_h = 3344, - .real_rot_en_w = 2047, - .real_rot_en_h = 2047, - .target_rot_dis_w = 4800, - .target_rot_dis_h = 3344, - .target_rot_en_w = 2016, - .target_rot_en_h = 2016, -}; - -static struct gsc_pix_min gsc_v_100_min = { - .org_w = 64, - .org_h = 32, - .real_w = 64, - .real_h = 32, - .target_rot_dis_w = 64, - .target_rot_dis_h = 32, - .target_rot_en_w = 32, - .target_rot_en_h = 16, -}; - -static struct gsc_pix_align gsc_v_100_align = { - .org_h = 16, - .org_w = 16, /* yuv420 : 16, others : 8 */ - .offset_h = 2, /* yuv420/422 : 2, others : 1 */ - .real_w = 16, /* yuv420/422 : 4~16, others : 2~8 */ - .real_h = 16, /* yuv420 : 4~16, others : 1 */ - .target_w = 2, /* yuv420/422 : 2, others : 1 */ - .target_h = 2, /* yuv420 : 2, others : 1 */ -}; - -static struct gsc_variant gsc_v_100_variant = { - .pix_max = &gsc_v_100_max, - .pix_min = &gsc_v_100_min, - .pix_align = &gsc_v_100_align, - .in_buf_cnt = 32, - .out_buf_cnt = 32, - .sc_up_max = 8, - .sc_down_max = 16, - .poly_sc_down_max = 4, - .pre_sc_down_max = 4, - .local_sc_down = 2, -}; - -static struct gsc_driverdata gsc_v_100_drvdata = { - .variant = { - [0] = &gsc_v_100_variant, - [1] = &gsc_v_100_variant, - [2] = &gsc_v_100_variant, - [3] = &gsc_v_100_variant, - }, - .num_entities = 4, - .lclk_frequency = 266000000UL, -}; - -static struct platform_device_id gsc_driver_ids[] = { - { - .name = "exynos-gsc", - .driver_data = (unsigned long)&gsc_v_100_drvdata, - }, - {}, -}; -MODULE_DEVICE_TABLE(platform, gsc_driver_ids); - -static const struct of_device_id exynos_gsc_match[] = { - { - .compatible = "samsung,exynos5-gsc", - .data = &gsc_v_100_drvdata, - }, - {}, -}; -MODULE_DEVICE_TABLE(of, exynos_gsc_match); - -static void *gsc_get_drv_data(struct platform_device *pdev) -{ - struct gsc_driverdata *driver_data = NULL; - - if (pdev->dev.of_node) { - const struct of_device_id *match; - match = of_match_node(exynos_gsc_match, - pdev->dev.of_node); - if (match) - driver_data = (struct gsc_driverdata *)match->data; - } else { - driver_data = (struct gsc_driverdata *) - platform_get_device_id(pdev)->driver_data; - } - - return driver_data; -} - -static void gsc_clk_put(struct gsc_dev *gsc) -{ - if (!IS_ERR(gsc->clock)) - clk_unprepare(gsc->clock); -} - -static int gsc_clk_get(struct gsc_dev *gsc) -{ - int ret; - - dev_dbg(&gsc->pdev->dev, "gsc_clk_get Called\n"); - - gsc->clock = devm_clk_get(&gsc->pdev->dev, GSC_CLOCK_GATE_NAME); - if (IS_ERR(gsc->clock)) { - dev_err(&gsc->pdev->dev, "failed to get clock~~~: %s\n", - GSC_CLOCK_GATE_NAME); - return PTR_ERR(gsc->clock); - } - - ret = clk_prepare(gsc->clock); - if (ret < 0) { - dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n", - GSC_CLOCK_GATE_NAME); - gsc->clock = ERR_PTR(-EINVAL); - return ret; - } - - return 0; -} - -static int gsc_m2m_suspend(struct gsc_dev *gsc) -{ - unsigned long flags; - int timeout; - - spin_lock_irqsave(&gsc->slock, flags); - if (!gsc_m2m_pending(gsc)) { - spin_unlock_irqrestore(&gsc->slock, flags); - return 0; - } - clear_bit(ST_M2M_SUSPENDED, &gsc->state); - set_bit(ST_M2M_SUSPENDING, &gsc->state); - spin_unlock_irqrestore(&gsc->slock, flags); - - timeout = wait_event_timeout(gsc->irq_queue, - test_bit(ST_M2M_SUSPENDED, &gsc->state), - GSC_SHUTDOWN_TIMEOUT); - - clear_bit(ST_M2M_SUSPENDING, &gsc->state); - return timeout == 0 ? -EAGAIN : 0; -} - -static int gsc_m2m_resume(struct gsc_dev *gsc) -{ - struct gsc_ctx *ctx; - unsigned long flags; - - spin_lock_irqsave(&gsc->slock, flags); - /* Clear for full H/W setup in first run after resume */ - ctx = gsc->m2m.ctx; - gsc->m2m.ctx = NULL; - spin_unlock_irqrestore(&gsc->slock, flags); - - if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state)) - gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); - - return 0; -} - -static int gsc_probe(struct platform_device *pdev) -{ - struct gsc_dev *gsc; - struct resource *res; - struct gsc_driverdata *drv_data = gsc_get_drv_data(pdev); - struct device *dev = &pdev->dev; - int ret = 0; - - gsc = devm_kzalloc(dev, sizeof(struct gsc_dev), GFP_KERNEL); - if (!gsc) - return -ENOMEM; - - if (dev->of_node) - gsc->id = of_alias_get_id(pdev->dev.of_node, "gsc"); - else - gsc->id = pdev->id; - - if (gsc->id < 0 || gsc->id >= drv_data->num_entities) { - dev_err(dev, "Invalid platform device id: %d\n", gsc->id); - return -EINVAL; - } - - gsc->variant = drv_data->variant[gsc->id]; - gsc->pdev = pdev; - gsc->pdata = dev->platform_data; - - init_waitqueue_head(&gsc->irq_queue); - spin_lock_init(&gsc->slock); - mutex_init(&gsc->lock); - gsc->clock = ERR_PTR(-EINVAL); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - gsc->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(gsc->regs)) - return PTR_ERR(gsc->regs); - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res) { - dev_err(dev, "failed to get IRQ resource\n"); - return -ENXIO; - } - - ret = gsc_clk_get(gsc); - if (ret) - return ret; - - ret = devm_request_irq(dev, res->start, gsc_irq_handler, - 0, pdev->name, gsc); - if (ret) { - dev_err(dev, "failed to install irq (%d)\n", ret); - goto err_clk; - } - - ret = gsc_register_m2m_device(gsc); - if (ret) - goto err_clk; - - platform_set_drvdata(pdev, gsc); - pm_runtime_enable(dev); - ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) - goto err_m2m; - - /* Initialize continious memory allocator */ - gsc->alloc_ctx = vb2_dma_contig_init_ctx(dev); - if (IS_ERR(gsc->alloc_ctx)) { - ret = PTR_ERR(gsc->alloc_ctx); - goto err_pm; - } - - dev_dbg(dev, "gsc-%d registered successfully\n", gsc->id); - - pm_runtime_put(dev); - return 0; -err_pm: - pm_runtime_put(dev); -err_m2m: - gsc_unregister_m2m_device(gsc); -err_clk: - gsc_clk_put(gsc); - return ret; -} - -static int gsc_remove(struct platform_device *pdev) -{ - struct gsc_dev *gsc = platform_get_drvdata(pdev); - - gsc_unregister_m2m_device(gsc); - - vb2_dma_contig_cleanup_ctx(gsc->alloc_ctx); - pm_runtime_disable(&pdev->dev); - gsc_clk_put(gsc); - - dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); - return 0; -} - -static int gsc_runtime_resume(struct device *dev) -{ - struct gsc_dev *gsc = dev_get_drvdata(dev); - int ret = 0; - - pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); - - ret = clk_enable(gsc->clock); - if (ret) - return ret; - - gsc_hw_set_sw_reset(gsc); - gsc_wait_reset(gsc); - - return gsc_m2m_resume(gsc); -} - -static int gsc_runtime_suspend(struct device *dev) -{ - struct gsc_dev *gsc = dev_get_drvdata(dev); - int ret = 0; - - ret = gsc_m2m_suspend(gsc); - if (!ret) - clk_disable(gsc->clock); - - pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); - return ret; -} - -static int gsc_resume(struct device *dev) -{ - struct gsc_dev *gsc = dev_get_drvdata(dev); - unsigned long flags; - - pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); - - /* Do not resume if the device was idle before system suspend */ - spin_lock_irqsave(&gsc->slock, flags); - if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) || - !gsc_m2m_opened(gsc)) { - spin_unlock_irqrestore(&gsc->slock, flags); - return 0; - } - gsc_hw_set_sw_reset(gsc); - gsc_wait_reset(gsc); - - spin_unlock_irqrestore(&gsc->slock, flags); - - return gsc_m2m_resume(gsc); -} - -static int gsc_suspend(struct device *dev) -{ - struct gsc_dev *gsc = dev_get_drvdata(dev); - - pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); - - if (test_and_set_bit(ST_SUSPEND, &gsc->state)) - return 0; - - return gsc_m2m_suspend(gsc); -} - -static const struct dev_pm_ops gsc_pm_ops = { - .suspend = gsc_suspend, - .resume = gsc_resume, - .runtime_suspend = gsc_runtime_suspend, - .runtime_resume = gsc_runtime_resume, -}; - -static struct platform_driver gsc_driver = { - .probe = gsc_probe, - .remove = gsc_remove, - .id_table = gsc_driver_ids, - .driver = { - .name = GSC_MODULE_NAME, - .owner = THIS_MODULE, - .pm = &gsc_pm_ops, - .of_match_table = exynos_gsc_match, - } -}; - -module_platform_driver(gsc_driver); - -MODULE_AUTHOR("Hyunwong Kim <khw0178.kim@samsung.com>"); -MODULE_DESCRIPTION("Samsung EXYNOS5 Soc series G-Scaler driver"); -MODULE_LICENSE("GPL"); |