aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/platform/s5p-fimc/fimc-core.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 17:31:16 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:43:09 -0300
commit2c3fb08b3f74b8792004095a1f6881a3296ff643 (patch)
tree19be9d09c4aa66d4363ee9d38a43721f5d6b144f /drivers/media/platform/s5p-fimc/fimc-core.c
parent2a2d1cf46500ab7599d0b45ee837f3936763ccac (diff)
[media] rename drivers/media/video as .../platform
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/s5p-fimc/fimc-core.c')
-rw-r--r--drivers/media/platform/s5p-fimc/fimc-core.c1239
1 files changed, 1239 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c
new file mode 100644
index 000000000000..1a445404e73d
--- /dev/null
+++ b/drivers/media/platform/s5p-fimc/fimc-core.c
@@ -0,0 +1,1239 @@
+/*
+ * Samsung S5P/EXYNOS4 SoC series FIMC (CAMIF) driver
+ *
+ * Copyright (C) 2010-2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 2 of the License,
+ * or (at your option) any later version.
+ */
+
+#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/device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "fimc-core.h"
+#include "fimc-reg.h"
+#include "fimc-mdevice.h"
+
+static char *fimc_clocks[MAX_FIMC_CLOCKS] = {
+ "sclk_fimc", "fimc"
+};
+
+static struct fimc_fmt fimc_formats[] = {
+ {
+ .name = "RGB565",
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .depth = { 16 },
+ .color = FIMC_FMT_RGB565,
+ .memplanes = 1,
+ .colplanes = 1,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "BGR666",
+ .fourcc = V4L2_PIX_FMT_BGR666,
+ .depth = { 32 },
+ .color = FIMC_FMT_RGB666,
+ .memplanes = 1,
+ .colplanes = 1,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "ARGB8888, 32 bpp",
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .depth = { 32 },
+ .color = FIMC_FMT_RGB888,
+ .memplanes = 1,
+ .colplanes = 1,
+ .flags = FMT_FLAGS_M2M | FMT_HAS_ALPHA,
+ }, {
+ .name = "ARGB1555",
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .depth = { 16 },
+ .color = FIMC_FMT_RGB555,
+ .memplanes = 1,
+ .colplanes = 1,
+ .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA,
+ }, {
+ .name = "ARGB4444",
+ .fourcc = V4L2_PIX_FMT_RGB444,
+ .depth = { 16 },
+ .color = FIMC_FMT_RGB444,
+ .memplanes = 1,
+ .colplanes = 1,
+ .flags = FMT_FLAGS_M2M_OUT | FMT_HAS_ALPHA,
+ }, {
+ .name = "YUV 4:2:2 packed, YCbYCr",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .depth = { 16 },
+ .color = FIMC_FMT_YCBYCR422,
+ .memplanes = 1,
+ .colplanes = 1,
+ .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+ }, {
+ .name = "YUV 4:2:2 packed, CbYCrY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .depth = { 16 },
+ .color = FIMC_FMT_CBYCRY422,
+ .memplanes = 1,
+ .colplanes = 1,
+ .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+ }, {
+ .name = "YUV 4:2:2 packed, CrYCbY",
+ .fourcc = V4L2_PIX_FMT_VYUY,
+ .depth = { 16 },
+ .color = FIMC_FMT_CRYCBY422,
+ .memplanes = 1,
+ .colplanes = 1,
+ .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+ }, {
+ .name = "YUV 4:2:2 packed, YCrYCb",
+ .fourcc = V4L2_PIX_FMT_YVYU,
+ .depth = { 16 },
+ .color = FIMC_FMT_YCRYCB422,
+ .memplanes = 1,
+ .colplanes = 1,
+ .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/Cb/Cr",
+ .fourcc = V4L2_PIX_FMT_YUV422P,
+ .depth = { 12 },
+ .color = FIMC_FMT_YCBYCR422,
+ .memplanes = 1,
+ .colplanes = 3,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CbCr",
+ .fourcc = V4L2_PIX_FMT_NV16,
+ .depth = { 16 },
+ .color = FIMC_FMT_YCBYCR422,
+ .memplanes = 1,
+ .colplanes = 2,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CrCb",
+ .fourcc = V4L2_PIX_FMT_NV61,
+ .depth = { 16 },
+ .color = FIMC_FMT_YCRYCB422,
+ .memplanes = 1,
+ .colplanes = 2,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:0 planar, YCbCr",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .depth = { 12 },
+ .color = FIMC_FMT_YCBCR420,
+ .memplanes = 1,
+ .colplanes = 3,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:0 planar, Y/CbCr",
+ .fourcc = V4L2_PIX_FMT_NV12,
+ .depth = { 12 },
+ .color = FIMC_FMT_YCBCR420,
+ .memplanes = 1,
+ .colplanes = 2,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr",
+ .fourcc = V4L2_PIX_FMT_NV12M,
+ .color = FIMC_FMT_YCBCR420,
+ .depth = { 8, 4 },
+ .memplanes = 2,
+ .colplanes = 2,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:0 non-contig. 3p, Y/Cb/Cr",
+ .fourcc = V4L2_PIX_FMT_YUV420M,
+ .color = FIMC_FMT_YCBCR420,
+ .depth = { 8, 2, 2 },
+ .memplanes = 3,
+ .colplanes = 3,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "YUV 4:2:0 non-contig. 2p, tiled",
+ .fourcc = V4L2_PIX_FMT_NV12MT,
+ .color = FIMC_FMT_YCBCR420,
+ .depth = { 8, 4 },
+ .memplanes = 2,
+ .colplanes = 2,
+ .flags = FMT_FLAGS_M2M,
+ }, {
+ .name = "JPEG encoded data",
+ .fourcc = V4L2_PIX_FMT_JPEG,
+ .color = FIMC_FMT_JPEG,
+ .depth = { 8 },
+ .memplanes = 1,
+ .colplanes = 1,
+ .mbus_code = V4L2_MBUS_FMT_JPEG_1X8,
+ .flags = FMT_FLAGS_CAM,
+ },
+};
+
+struct fimc_fmt *fimc_get_format(unsigned int index)
+{
+ if (index >= ARRAY_SIZE(fimc_formats))
+ return NULL;
+
+ return &fimc_formats[index];
+}
+
+int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
+ int dw, int dh, int rotation)
+{
+ if (rotation == 90 || rotation == 270)
+ swap(dw, dh);
+
+ if (!ctx->scaler.enabled)
+ return (sw == dw && sh == dh) ? 0 : -EINVAL;
+
+ if ((sw >= SCALER_MAX_HRATIO * dw) || (sh >= SCALER_MAX_VRATIO * dh))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
+{
+ u32 sh = 6;
+
+ if (src >= 64 * tar)
+ return -EINVAL;
+
+ while (sh--) {
+ u32 tmp = 1 << sh;
+ if (src >= tar * tmp) {
+ *shift = sh, *ratio = tmp;
+ return 0;
+ }
+ }
+ *shift = 0, *ratio = 1;
+ return 0;
+}
+
+int fimc_set_scaler_info(struct fimc_ctx *ctx)
+{
+ struct fimc_variant *variant = ctx->fimc_dev->variant;
+ struct device *dev = &ctx->fimc_dev->pdev->dev;
+ struct fimc_scaler *sc = &ctx->scaler;
+ struct fimc_frame *s_frame = &ctx->s_frame;
+ struct fimc_frame *d_frame = &ctx->d_frame;
+ int tx, ty, sx, sy;
+ int ret;
+
+ if (ctx->rotation == 90 || ctx->rotation == 270) {
+ ty = d_frame->width;
+ tx = d_frame->height;
+ } else {
+ tx = d_frame->width;
+ ty = d_frame->height;
+ }
+ if (tx <= 0 || ty <= 0) {
+ dev_err(dev, "Invalid target size: %dx%d", tx, ty);
+ return -EINVAL;
+ }
+
+ sx = s_frame->width;
+ sy = s_frame->height;
+ if (sx <= 0 || sy <= 0) {
+ dev_err(dev, "Invalid source size: %dx%d", sx, sy);
+ return -EINVAL;
+ }
+ sc->real_width = sx;
+ sc->real_height = sy;
+
+ ret = fimc_get_scaler_factor(sx, tx, &sc->pre_hratio, &sc->hfactor);
+ if (ret)
+ return ret;
+
+ ret = fimc_get_scaler_factor(sy, ty, &sc->pre_vratio, &sc->vfactor);
+ if (ret)
+ return ret;
+
+ sc->pre_dst_width = sx / sc->pre_hratio;
+ sc->pre_dst_height = sy / sc->pre_vratio;
+
+ if (variant->has_mainscaler_ext) {
+ sc->main_hratio = (sx << 14) / (tx << sc->hfactor);
+ sc->main_vratio = (sy << 14) / (ty << sc->vfactor);
+ } else {
+ sc->main_hratio = (sx << 8) / (tx << sc->hfactor);
+ sc->main_vratio = (sy << 8) / (ty << sc->vfactor);
+
+ }
+
+ sc->scaleup_h = (tx >= sx) ? 1 : 0;
+ sc->scaleup_v = (ty >= sy) ? 1 : 0;
+
+ /* check to see if input and output size/format differ */
+ if (s_frame->fmt->color == d_frame->fmt->color
+ && s_frame->width == d_frame->width
+ && s_frame->height == d_frame->height)
+ sc->copy_mode = 1;
+ else
+ sc->copy_mode = 0;
+
+ return 0;
+}
+
+static irqreturn_t fimc_irq_handler(int irq, void *priv)
+{
+ struct fimc_dev *fimc = priv;
+ struct fimc_ctx *ctx;
+
+ fimc_hw_clear_irq(fimc);
+
+ spin_lock(&fimc->slock);
+
+ if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) {
+ if (test_and_clear_bit(ST_M2M_SUSPENDING, &fimc->state)) {
+ set_bit(ST_M2M_SUSPENDED, &fimc->state);
+ wake_up(&fimc->irq_queue);
+ goto out;
+ }
+ ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev);
+ if (ctx != NULL) {
+ spin_unlock(&fimc->slock);
+ fimc_m2m_job_finish(ctx, VB2_BUF_STATE_DONE);
+
+ if (ctx->state & FIMC_CTX_SHUT) {
+ ctx->state &= ~FIMC_CTX_SHUT;
+ wake_up(&fimc->irq_queue);
+ }
+ return IRQ_HANDLED;
+ }
+ } else if (test_bit(ST_CAPT_PEND, &fimc->state)) {
+ int last_buf = test_bit(ST_CAPT_JPEG, &fimc->state) &&
+ fimc->vid_cap.reqbufs_count == 1;
+ fimc_capture_irq_handler(fimc, !last_buf);
+ }
+out:
+ spin_unlock(&fimc->slock);
+ return IRQ_HANDLED;
+}
+
+/* The color format (colplanes, memplanes) must be already configured. */
+int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
+ struct fimc_frame *frame, struct fimc_addr *paddr)
+{
+ int ret = 0;
+ u32 pix_size;
+
+ if (vb == NULL || frame == NULL)
+ return -EINVAL;
+
+ pix_size = frame->width * frame->height;
+
+ dbg("memplanes= %d, colplanes= %d, pix_size= %d",
+ frame->fmt->memplanes, frame->fmt->colplanes, pix_size);
+
+ paddr->y = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ if (frame->fmt->memplanes == 1) {
+ switch (frame->fmt->colplanes) {
+ case 1:
+ paddr->cb = 0;
+ paddr->cr = 0;
+ break;
+ case 2:
+ /* decompose Y into Y/Cb */
+ paddr->cb = (u32)(paddr->y + pix_size);
+ paddr->cr = 0;
+ break;
+ case 3:
+ paddr->cb = (u32)(paddr->y + pix_size);
+ /* decompose Y into Y/Cb/Cr */
+ if (FIMC_FMT_YCBCR420 == frame->fmt->color)
+ paddr->cr = (u32)(paddr->cb
+ + (pix_size >> 2));
+ else /* 422 */
+ paddr->cr = (u32)(paddr->cb
+ + (pix_size >> 1));
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ if (frame->fmt->memplanes >= 2)
+ paddr->cb = vb2_dma_contig_plane_dma_addr(vb, 1);
+
+ if (frame->fmt->memplanes == 3)
+ paddr->cr = vb2_dma_contig_plane_dma_addr(vb, 2);
+ }
+
+ dbg("PHYS_ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
+ paddr->y, paddr->cb, paddr->cr, ret);
+
+ return ret;
+}
+
+/* Set order for 1 and 2 plane YCBCR 4:2:2 formats. */
+void fimc_set_yuv_order(struct fimc_ctx *ctx)
+{
+ /* The one only mode supported in SoC. */
+ ctx->in_order_2p = FIMC_REG_CIOCTRL_ORDER422_2P_LSB_CRCB;
+ ctx->out_order_2p = FIMC_REG_CIOCTRL_ORDER422_2P_LSB_CRCB;
+
+ /* Set order for 1 plane input formats. */
+ switch (ctx->s_frame.fmt->color) {
+ case FIMC_FMT_YCRYCB422:
+ ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_CBYCRY;
+ break;
+ case FIMC_FMT_CBYCRY422:
+ ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_YCRYCB;
+ break;
+ case FIMC_FMT_CRYCBY422:
+ ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_YCBYCR;
+ break;
+ case FIMC_FMT_YCBYCR422:
+ default:
+ ctx->in_order_1p = FIMC_REG_MSCTRL_ORDER422_CRYCBY;
+ break;
+ }
+ dbg("ctx->in_order_1p= %d", ctx->in_order_1p);
+
+ switch (ctx->d_frame.fmt->color) {
+ case FIMC_FMT_YCRYCB422:
+ ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_CBYCRY;
+ break;
+ case FIMC_FMT_CBYCRY422:
+ ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_YCRYCB;
+ break;
+ case FIMC_FMT_CRYCBY422:
+ ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_YCBYCR;
+ break;
+ case FIMC_FMT_YCBYCR422:
+ default:
+ ctx->out_order_1p = FIMC_REG_CIOCTRL_ORDER422_CRYCBY;
+ break;
+ }
+ dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
+}
+
+void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
+{
+ struct fimc_variant *variant = ctx->fimc_dev->variant;
+ u32 i, depth = 0;
+
+ for (i = 0; i < f->fmt->colplanes; i++)
+ depth += f->fmt->depth[i];
+
+ f->dma_offset.y_h = f->offs_h;
+ if (!variant->pix_hoff)
+ f->dma_offset.y_h *= (depth >> 3);
+
+ f->dma_offset.y_v = f->offs_v;
+
+ f->dma_offset.cb_h = f->offs_h;
+ f->dma_offset.cb_v = f->offs_v;
+
+ f->dma_offset.cr_h = f->offs_h;
+ f->dma_offset.cr_v = f->offs_v;
+
+ if (!variant->pix_hoff) {
+ if (f->fmt->colplanes == 3) {
+ f->dma_offset.cb_h >>= 1;
+ f->dma_offset.cr_h >>= 1;
+ }
+ if (f->fmt->color == FIMC_FMT_YCBCR420) {
+ f->dma_offset.cb_v >>= 1;
+ f->dma_offset.cr_v >>= 1;
+ }
+ }
+
+ dbg("in_offset: color= %d, y_h= %d, y_v= %d",
+ f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
+}
+
+static int fimc_set_color_effect(struct fimc_ctx *ctx, enum v4l2_colorfx colorfx)
+{
+ struct fimc_effect *effect = &ctx->effect;
+
+ switch (colorfx) {
+ case V4L2_COLORFX_NONE:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
+ break;
+ case V4L2_COLORFX_BW:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
+ effect->pat_cb = 128;
+ effect->pat_cr = 128;
+ break;
+ case V4L2_COLORFX_SEPIA:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
+ effect->pat_cb = 115;
+ effect->pat_cr = 145;
+ break;
+ case V4L2_COLORFX_NEGATIVE:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_NEGATIVE;
+ break;
+ case V4L2_COLORFX_EMBOSS:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_EMBOSSING;
+ break;
+ case V4L2_COLORFX_ART_FREEZE:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_ARTFREEZE;
+ break;
+ case V4L2_COLORFX_SILHOUETTE:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_SILHOUETTE;
+ break;
+ case V4L2_COLORFX_SET_CBCR:
+ effect->type = FIMC_REG_CIIMGEFF_FIN_ARBITRARY;
+ effect->pat_cb = ctx->ctrls.colorfx_cbcr->val >> 8;
+ effect->pat_cr = ctx->ctrls.colorfx_cbcr->val & 0xff;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * V4L2 controls handling
+ */
+#define ctrl_to_ctx(__ctrl) \
+ container_of((__ctrl)->handler, struct fimc_ctx, ctrls.handler)
+
+static int __fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_ctrl *ctrl)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_variant *variant = fimc->variant;
+ unsigned int flags = FIMC_DST_FMT | FIMC_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 (fimc_capture_pending(fimc) ||
+ (ctx->state & flags) == flags) {
+ ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
+ ctx->s_frame.height, ctx->d_frame.width,
+ ctx->d_frame.height, ctrl->val);
+ if (ret)
+ return -EINVAL;
+ }
+ if ((ctrl->val == 90 || ctrl->val == 270) &&
+ !variant->has_out_rot)
+ return -EINVAL;
+
+ ctx->rotation = ctrl->val;
+ break;
+
+ case V4L2_CID_ALPHA_COMPONENT:
+ ctx->d_frame.alpha = ctrl->val;
+ break;
+
+ case V4L2_CID_COLORFX:
+ ret = fimc_set_color_effect(ctx, ctrl->val);
+ if (ret)
+ return ret;
+ break;
+ }
+
+ ctx->state |= FIMC_PARAMS;
+ set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+ return 0;
+}
+
+static int fimc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct fimc_ctx *ctx = ctrl_to_ctx(ctrl);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
+ ret = __fimc_s_ctrl(ctx, ctrl);
+ spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops fimc_ctrl_ops = {
+ .s_ctrl = fimc_s_ctrl,
+};
+
+int fimc_ctrls_create(struct fimc_ctx *ctx)
+{
+ struct fimc_variant *variant = ctx->fimc_dev->variant;
+ unsigned int max_alpha = fimc_get_alpha_mask(ctx->d_frame.fmt);
+ struct fimc_ctrls *ctrls = &ctx->ctrls;
+ struct v4l2_ctrl_handler *handler = &ctrls->handler;
+
+ if (ctx->ctrls.ready)
+ return 0;
+
+ v4l2_ctrl_handler_init(handler, 6);
+
+ ctrls->rotate = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
+ V4L2_CID_ROTATE, 0, 270, 90, 0);
+ ctrls->hflip = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ ctrls->vflip = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ if (variant->has_alpha)
+ ctrls->alpha = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
+ V4L2_CID_ALPHA_COMPONENT,
+ 0, max_alpha, 1, 0);
+ else
+ ctrls->alpha = NULL;
+
+ ctrls->colorfx = v4l2_ctrl_new_std_menu(handler, &fimc_ctrl_ops,
+ V4L2_CID_COLORFX, V4L2_COLORFX_SET_CBCR,
+ ~0x983f, V4L2_COLORFX_NONE);
+
+ ctrls->colorfx_cbcr = v4l2_ctrl_new_std(handler, &fimc_ctrl_ops,
+ V4L2_CID_COLORFX_CBCR, 0, 0xffff, 1, 0);
+
+ ctx->effect.type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
+
+ if (!handler->error) {
+ v4l2_ctrl_cluster(2, &ctrls->colorfx);
+ ctrls->ready = true;
+ }
+
+ return handler->error;
+}
+
+void fimc_ctrls_delete(struct fimc_ctx *ctx)
+{
+ struct fimc_ctrls *ctrls = &ctx->ctrls;
+
+ if (ctrls->ready) {
+ v4l2_ctrl_handler_free(&ctrls->handler);
+ ctrls->ready = false;
+ ctrls->alpha = NULL;
+ }
+}
+
+void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active)
+{
+ unsigned int has_alpha = ctx->d_frame.fmt->flags & FMT_HAS_ALPHA;
+ struct fimc_ctrls *ctrls = &ctx->ctrls;
+
+ if (!ctrls->ready)
+ return;
+
+ mutex_lock(ctrls->handler.lock);
+ v4l2_ctrl_activate(ctrls->rotate, active);
+ v4l2_ctrl_activate(ctrls->hflip, active);
+ v4l2_ctrl_activate(ctrls->vflip, active);
+ v4l2_ctrl_activate(ctrls->colorfx, active);
+ if (ctrls->alpha)
+ v4l2_ctrl_activate(ctrls->alpha, active && has_alpha);
+
+ if (active) {
+ fimc_set_color_effect(ctx, ctrls->colorfx->cur.val);
+ ctx->rotation = ctrls->rotate->val;
+ ctx->hflip = ctrls->hflip->val;
+ ctx->vflip = ctrls->vflip->val;
+ } else {
+ ctx->effect.type = FIMC_REG_CIIMGEFF_FIN_BYPASS;
+ ctx->rotation = 0;
+ ctx->hflip = 0;
+ ctx->vflip = 0;
+ }
+ mutex_unlock(ctrls->handler.lock);
+}
+
+/* Update maximum value of the alpha color control */
+void fimc_alpha_ctrl_update(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct v4l2_ctrl *ctrl = ctx->ctrls.alpha;
+
+ if (ctrl == NULL || !fimc->variant->has_alpha)
+ return;
+
+ v4l2_ctrl_lock(ctrl);
+ ctrl->maximum = fimc_get_alpha_mask(ctx->d_frame.fmt);
+
+ if (ctrl->cur.val > ctrl->maximum)
+ ctrl->cur.val = ctrl->maximum;
+
+ v4l2_ctrl_unlock(ctrl);
+}
+
+int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
+{
+ struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+ int i;
+
+ pixm->width = frame->o_width;
+ pixm->height = frame->o_height;
+ pixm->field = V4L2_FIELD_NONE;
+ pixm->pixelformat = frame->fmt->fourcc;
+ pixm->colorspace = V4L2_COLORSPACE_JPEG;
+ pixm->num_planes = frame->fmt->memplanes;
+
+ for (i = 0; i < pixm->num_planes; ++i) {
+ int bpl = frame->f_width;
+ if (frame->fmt->colplanes == 1) /* packed formats */
+ bpl = (bpl * frame->fmt->depth[0]) / 8;
+ pixm->plane_fmt[i].bytesperline = bpl;
+ pixm->plane_fmt[i].sizeimage = (frame->o_width *
+ frame->o_height * frame->fmt->depth[i]) / 8;
+ }
+ return 0;
+}
+
+void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f)
+{
+ struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+
+ frame->f_width = pixm->plane_fmt[0].bytesperline;
+ if (frame->fmt->colplanes == 1)
+ frame->f_width = (frame->f_width * 8) / frame->fmt->depth[0];
+ frame->f_height = pixm->height;
+ frame->width = pixm->width;
+ frame->height = pixm->height;
+ frame->o_width = pixm->width;
+ frame->o_height = pixm->height;
+ frame->offs_h = 0;
+ frame->offs_v = 0;
+}
+
+/**
+ * fimc_adjust_mplane_format - adjust bytesperline/sizeimage for each plane
+ * @fmt: fimc pixel format description (input)
+ * @width: requested pixel width
+ * @height: requested pixel height
+ * @pix: multi-plane format to adjust
+ */
+void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
+ struct v4l2_pix_format_mplane *pix)
+{
+ u32 bytesperline = 0;
+ int i;
+
+ pix->colorspace = V4L2_COLORSPACE_JPEG;
+ pix->field = V4L2_FIELD_NONE;
+ pix->num_planes = fmt->memplanes;
+ pix->pixelformat = fmt->fourcc;
+ pix->height = height;
+ pix->width = width;
+
+ for (i = 0; i < pix->num_planes; ++i) {
+ struct v4l2_plane_pix_format *plane_fmt = &pix->plane_fmt[i];
+ u32 bpl = plane_fmt->bytesperline;
+
+ if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width))
+ bpl = pix->width; /* Planar */
+
+ if (fmt->colplanes == 1 && /* Packed */
+ (bpl == 0 || ((bpl * 8) / fmt->depth[i]) < pix->width))
+ bpl = (pix->width * fmt->depth[0]) / 8;
+
+ if (i == 0) /* Same bytesperline for each plane. */
+ bytesperline = bpl;
+
+ plane_fmt->bytesperline = bytesperline;
+ plane_fmt->sizeimage = max((pix->width * pix->height *
+ fmt->depth[i]) / 8, plane_fmt->sizeimage);
+ }
+}
+
+/**
+ * fimc_find_format - lookup fimc color format by fourcc or media bus format
+ * @pixelformat: fourcc to match, ignored if null
+ * @mbus_code: media bus code to match, ignored if null
+ * @mask: the color flags to match
+ * @index: offset in the fimc_formats array, ignored if negative
+ */
+struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
+ unsigned int mask, int index)
+{
+ struct fimc_fmt *fmt, *def_fmt = NULL;
+ unsigned int i;
+ int id = 0;
+
+ if (index >= (int)ARRAY_SIZE(fimc_formats))
+ return NULL;
+
+ for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
+ fmt = &fimc_formats[i];
+ if (!(fmt->flags & mask))
+ continue;
+ if (pixelformat && fmt->fourcc == *pixelformat)
+ return fmt;
+ if (mbus_code && fmt->mbus_code == *mbus_code)
+ return fmt;
+ if (index == id)
+ def_fmt = fmt;
+ id++;
+ }
+ return def_fmt;
+}
+
+static void fimc_clk_put(struct fimc_dev *fimc)
+{
+ int i;
+ for (i = 0; i < MAX_FIMC_CLOCKS; i++) {
+ if (IS_ERR_OR_NULL(fimc->clock[i]))
+ continue;
+ clk_unprepare(fimc->clock[i]);
+ clk_put(fimc->clock[i]);
+ fimc->clock[i] = NULL;
+ }
+}
+
+static int fimc_clk_get(struct fimc_dev *fimc)
+{
+ int i, ret;
+
+ for (i = 0; i < MAX_FIMC_CLOCKS; i++) {
+ fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clocks[i]);
+ if (IS_ERR(fimc->clock[i]))
+ goto err;
+ ret = clk_prepare(fimc->clock[i]);
+ if (ret < 0) {
+ clk_put(fimc->clock[i]);
+ fimc->clock[i] = NULL;
+ goto err;
+ }
+ }
+ return 0;
+err:
+ fimc_clk_put(fimc);
+ dev_err(&fimc->pdev->dev, "failed to get clock: %s\n",
+ fimc_clocks[i]);
+ return -ENXIO;
+}
+
+static int fimc_m2m_suspend(struct fimc_dev *fimc)
+{
+ unsigned long flags;
+ int timeout;
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ if (!fimc_m2m_pending(fimc)) {
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ return 0;
+ }
+ clear_bit(ST_M2M_SUSPENDED, &fimc->state);
+ set_bit(ST_M2M_SUSPENDING, &fimc->state);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ timeout = wait_event_timeout(fimc->irq_queue,
+ test_bit(ST_M2M_SUSPENDED, &fimc->state),
+ FIMC_SHUTDOWN_TIMEOUT);
+
+ clear_bit(ST_M2M_SUSPENDING, &fimc->state);
+ return timeout == 0 ? -EAGAIN : 0;
+}
+
+static int fimc_m2m_resume(struct fimc_dev *fimc)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ /* Clear for full H/W setup in first run after resume */
+ fimc->m2m.ctx = NULL;
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state))
+ fimc_m2m_job_finish(fimc->m2m.ctx,
+ VB2_BUF_STATE_ERROR);
+ return 0;
+}
+
+static int fimc_probe(struct platform_device *pdev)
+{
+ struct fimc_drvdata *drv_data = fimc_get_drvdata(pdev);
+ struct s5p_platform_fimc *pdata;
+ struct fimc_dev *fimc;
+ struct resource *res;
+ int ret = 0;
+
+ if (pdev->id >= drv_data->num_entities) {
+ dev_err(&pdev->dev, "Invalid platform device id: %d\n",
+ pdev->id);
+ return -EINVAL;
+ }
+
+ fimc = devm_kzalloc(&pdev->dev, sizeof(*fimc), GFP_KERNEL);
+ if (!fimc)
+ return -ENOMEM;
+
+ fimc->id = pdev->id;
+
+ fimc->variant = drv_data->variant[fimc->id];
+ fimc->pdev = pdev;
+ pdata = pdev->dev.platform_data;
+ fimc->pdata = pdata;
+
+ init_waitqueue_head(&fimc->irq_queue);
+ spin_lock_init(&fimc->slock);
+ mutex_init(&fimc->lock);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
+ if (fimc->regs == NULL) {
+ dev_err(&pdev->dev, "Failed to obtain io memory\n");
+ return -ENOENT;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "Failed to get IRQ resource\n");
+ return -ENXIO;
+ }
+
+ ret = fimc_clk_get(fimc);
+ if (ret)
+ return ret;
+ clk_set_rate(fimc->clock[CLK_BUS], drv_data->lclk_frequency);
+ clk_enable(fimc->clock[CLK_BUS]);
+
+ ret = devm_request_irq(&pdev->dev, res->start, fimc_irq_handler,
+ 0, dev_name(&pdev->dev), fimc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
+ goto err_clk;
+ }
+
+ ret = fimc_initialize_capture_subdev(fimc);
+ if (ret)
+ goto err_clk;
+
+ platform_set_drvdata(pdev, fimc);
+ pm_runtime_enable(&pdev->dev);
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_sd;
+ /* Initialize contiguous memory allocator */
+ fimc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(fimc->alloc_ctx)) {
+ ret = PTR_ERR(fimc->alloc_ctx);
+ goto err_pm;
+ }
+
+ dev_dbg(&pdev->dev, "FIMC.%d registered successfully\n", fimc->id);
+
+ pm_runtime_put(&pdev->dev);
+ return 0;
+err_pm:
+ pm_runtime_put(&pdev->dev);
+err_sd:
+ fimc_unregister_capture_subdev(fimc);
+err_clk:
+ fimc_clk_put(fimc);
+ return ret;
+}
+
+static int fimc_runtime_resume(struct device *dev)
+{
+ struct fimc_dev *fimc = dev_get_drvdata(dev);
+
+ dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
+
+ /* Enable clocks and perform basic initalization */
+ clk_enable(fimc->clock[CLK_GATE]);
+ fimc_hw_reset(fimc);
+
+ /* Resume the capture or mem-to-mem device */
+ if (fimc_capture_busy(fimc))
+ return fimc_capture_resume(fimc);
+
+ return fimc_m2m_resume(fimc);
+}
+
+static int fimc_runtime_suspend(struct device *dev)
+{
+ struct fimc_dev *fimc = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (fimc_capture_busy(fimc))
+ ret = fimc_capture_suspend(fimc);
+ else
+ ret = fimc_m2m_suspend(fimc);
+ if (!ret)
+ clk_disable(fimc->clock[CLK_GATE]);
+
+ dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
+ return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int fimc_resume(struct device *dev)
+{
+ struct fimc_dev *fimc = dev_get_drvdata(dev);
+ unsigned long flags;
+
+ dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
+
+ /* Do not resume if the device was idle before system suspend */
+ spin_lock_irqsave(&fimc->slock, flags);
+ if (!test_and_clear_bit(ST_LPM, &fimc->state) ||
+ (!fimc_m2m_active(fimc) && !fimc_capture_busy(fimc))) {
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ return 0;
+ }
+ fimc_hw_reset(fimc);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ if (fimc_capture_busy(fimc))
+ return fimc_capture_resume(fimc);
+
+ return fimc_m2m_resume(fimc);
+}
+
+static int fimc_suspend(struct device *dev)
+{
+ struct fimc_dev *fimc = dev_get_drvdata(dev);
+
+ dbg("fimc%d: state: 0x%lx", fimc->id, fimc->state);
+
+ if (test_and_set_bit(ST_LPM, &fimc->state))
+ return 0;
+ if (fimc_capture_busy(fimc))
+ return fimc_capture_suspend(fimc);
+
+ return fimc_m2m_suspend(fimc);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static int __devexit fimc_remove(struct platform_device *pdev)
+{
+ struct fimc_dev *fimc = platform_get_drvdata(pdev);
+
+ pm_runtime_disable(&pdev->dev);
+ pm_runtime_set_suspended(&pdev->dev);
+
+ fimc_unregister_capture_subdev(fimc);
+ vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
+
+ clk_disable(fimc->clock[CLK_BUS]);
+ fimc_clk_put(fimc);
+
+ dev_info(&pdev->dev, "driver unloaded\n");
+ return 0;
+}
+
+/* Image pixel limits, similar across several FIMC HW revisions. */
+static struct fimc_pix_limit s5p_pix_limit[4] = {
+ [0] = {
+ .scaler_en_w = 3264,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1920,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1920,
+ .out_rot_dis_w = 4224,
+ },
+ [1] = {
+ .scaler_en_w = 4224,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1920,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1920,
+ .out_rot_dis_w = 4224,
+ },
+ [2] = {
+ .scaler_en_w = 1920,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1280,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1280,
+ .out_rot_dis_w = 1920,
+ },
+ [3] = {
+ .scaler_en_w = 1920,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1366,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1366,
+ .out_rot_dis_w = 1920,
+ },
+};
+
+static struct fimc_variant fimc0_variant_s5p = {
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .has_cam_if = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 8,
+ .min_vsize_align = 16,
+ .out_buf_count = 4,
+ .pix_limit = &s5p_pix_limit[0],
+};
+
+static struct fimc_variant fimc2_variant_s5p = {
+ .has_cam_if = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 8,
+ .min_vsize_align = 16,
+ .out_buf_count = 4,
+ .pix_limit = &s5p_pix_limit[1],
+};
+
+static struct fimc_variant fimc0_variant_s5pv210 = {
+ .pix_hoff = 1,
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .has_cam_if = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 8,
+ .min_vsize_align = 16,
+ .out_buf_count = 4,
+ .pix_limit = &s5p_pix_limit[1],
+};
+
+static struct fimc_variant fimc1_variant_s5pv210 = {
+ .pix_hoff = 1,
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .has_cam_if = 1,
+ .has_mainscaler_ext = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 1,
+ .min_vsize_align = 1,
+ .out_buf_count = 4,
+ .pix_limit = &s5p_pix_limit[2],
+};
+
+static struct fimc_variant fimc2_variant_s5pv210 = {
+ .has_cam_if = 1,
+ .pix_hoff = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 8,
+ .min_vsize_align = 16,
+ .out_buf_count = 4,
+ .pix_limit = &s5p_pix_limit[2],
+};
+
+static struct fimc_variant fimc0_variant_exynos4 = {
+ .pix_hoff = 1,
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .has_cam_if = 1,
+ .has_cistatus2 = 1,
+ .has_mainscaler_ext = 1,
+ .has_alpha = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 2,
+ .min_vsize_align = 1,
+ .out_buf_count = 32,
+ .pix_limit = &s5p_pix_limit[1],
+};
+
+static struct fimc_variant fimc3_variant_exynos4 = {
+ .pix_hoff = 1,
+ .has_cam_if = 1,
+ .has_cistatus2 = 1,
+ .has_mainscaler_ext = 1,
+ .has_alpha = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+ .hor_offs_align = 2,
+ .min_vsize_align = 1,
+ .out_buf_count = 32,
+ .pix_limit = &s5p_pix_limit[3],
+};
+
+/* S5PC100 */
+static struct fimc_drvdata fimc_drvdata_s5p = {
+ .variant = {
+ [0] = &fimc0_variant_s5p,
+ [1] = &fimc0_variant_s5p,
+ [2] = &fimc2_variant_s5p,
+ },
+ .num_entities = 3,
+ .lclk_frequency = 133000000UL,
+};
+
+/* S5PV210, S5PC110 */
+static struct fimc_drvdata fimc_drvdata_s5pv210 = {
+ .variant = {
+ [0] = &fimc0_variant_s5pv210,
+ [1] = &fimc1_variant_s5pv210,
+ [2] = &fimc2_variant_s5pv210,
+ },
+ .num_entities = 3,
+ .lclk_frequency = 166000000UL,
+};
+
+/* EXYNOS4210, S5PV310, S5PC210 */
+static struct fimc_drvdata fimc_drvdata_exynos4 = {
+ .variant = {
+ [0] = &fimc0_variant_exynos4,
+ [1] = &fimc0_variant_exynos4,
+ [2] = &fimc0_variant_exynos4,
+ [3] = &fimc3_variant_exynos4,
+ },
+ .num_entities = 4,
+ .lclk_frequency = 166000000UL,
+};
+
+static struct platform_device_id fimc_driver_ids[] = {
+ {
+ .name = "s5p-fimc",
+ .driver_data = (unsigned long)&fimc_drvdata_s5p,
+ }, {
+ .name = "s5pv210-fimc",
+ .driver_data = (unsigned long)&fimc_drvdata_s5pv210,
+ }, {
+ .name = "exynos4-fimc",
+ .driver_data = (unsigned long)&fimc_drvdata_exynos4,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, fimc_driver_ids);
+
+static const struct dev_pm_ops fimc_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
+ SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
+};
+
+static struct platform_driver fimc_driver = {
+ .probe = fimc_probe,
+ .remove = __devexit_p(fimc_remove),
+ .id_table = fimc_driver_ids,
+ .driver = {
+ .name = FIMC_MODULE_NAME,
+ .owner = THIS_MODULE,
+ .pm = &fimc_pm_ops,
+ }
+};
+
+int __init fimc_register_driver(void)
+{
+ return platform_driver_register(&fimc_driver);
+}
+
+void __exit fimc_unregister_driver(void)
+{
+ platform_driver_unregister(&fimc_driver);
+}

Privacy Policy