/* * S5P camera interface (video postprocessor) driver * * Copyright (c) 2010 Samsung Electronics Co., Ltd * * Sylwester Nawrocki, * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fimc-core.h" static char *fimc_clock_name[NUM_FIMC_CLOCKS] = { "sclk_fimc", "fimc" }; static struct fimc_fmt fimc_formats[] = { { .name = "RGB565", .fourcc = V4L2_PIX_FMT_RGB565X, .depth = 16, .color = S5P_FIMC_RGB565, .buff_cnt = 1, .planes_cnt = 1, .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_BE, .flags = FMT_FLAGS_M2M, }, { .name = "BGR666", .fourcc = V4L2_PIX_FMT_BGR666, .depth = 32, .color = S5P_FIMC_RGB666, .buff_cnt = 1, .planes_cnt = 1, .flags = FMT_FLAGS_M2M, }, { .name = "XRGB-8-8-8-8, 32 bpp", .fourcc = V4L2_PIX_FMT_RGB32, .depth = 32, .color = S5P_FIMC_RGB888, .buff_cnt = 1, .planes_cnt = 1, .flags = FMT_FLAGS_M2M, }, { .name = "YUV 4:2:2 packed, YCbYCr", .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, .color = S5P_FIMC_YCBYCR422, .buff_cnt = 1, .planes_cnt = 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 = S5P_FIMC_CBYCRY422, .buff_cnt = 1, .planes_cnt = 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 = S5P_FIMC_CRYCBY422, .buff_cnt = 1, .planes_cnt = 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 = S5P_FIMC_YCRYCB422, .buff_cnt = 1, .planes_cnt = 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 = S5P_FIMC_YCBCR422, .buff_cnt = 1, .planes_cnt = 3, .flags = FMT_FLAGS_M2M, }, { .name = "YUV 4:2:2 planar, Y/CbCr", .fourcc = V4L2_PIX_FMT_NV16, .depth = 16, .color = S5P_FIMC_YCBCR422, .buff_cnt = 1, .planes_cnt = 2, .flags = FMT_FLAGS_M2M, }, { .name = "YUV 4:2:2 planar, Y/CrCb", .fourcc = V4L2_PIX_FMT_NV61, .depth = 16, .color = S5P_FIMC_RGB565, .buff_cnt = 1, .planes_cnt = 2, .flags = FMT_FLAGS_M2M, }, { .name = "YUV 4:2:0 planar, YCbCr", .fourcc = V4L2_PIX_FMT_YUV420, .depth = 12, .color = S5P_FIMC_YCBCR420, .buff_cnt = 1, .planes_cnt = 3, .flags = FMT_FLAGS_M2M, }, { .name = "YUV 4:2:0 planar, Y/CbCr", .fourcc = V4L2_PIX_FMT_NV12, .depth = 12, .color = S5P_FIMC_YCBCR420, .buff_cnt = 1, .planes_cnt = 2, .flags = FMT_FLAGS_M2M, }, }; static struct v4l2_queryctrl fimc_ctrls[] = { { .id = V4L2_CID_HFLIP, .type = V4L2_CTRL_TYPE_BOOLEAN, .name = "Horizontal flip", .minimum = 0, .maximum = 1, .default_value = 0, }, { .id = V4L2_CID_VFLIP, .type = V4L2_CTRL_TYPE_BOOLEAN, .name = "Vertical flip", .minimum = 0, .maximum = 1, .default_value = 0, }, { .id = V4L2_CID_ROTATE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Rotation (CCW)", .minimum = 0, .maximum = 270, .step = 90, .default_value = 0, }, }; static struct v4l2_queryctrl *get_ctrl(int id) { int i; for (i = 0; i < ARRAY_SIZE(fimc_ctrls); ++i) if (id == fimc_ctrls[i].id) return &fimc_ctrls[i]; return NULL; } int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f) { if (r->width > f->width) { if (f->width > (r->width * SCALER_MAX_HRATIO)) return -EINVAL; } else { if ((f->width * SCALER_MAX_HRATIO) < r->width) return -EINVAL; } if (r->height > f->height) { if (f->height > (r->height * SCALER_MAX_VRATIO)) return -EINVAL; } else { if ((f->height * SCALER_MAX_VRATIO) < r->height) 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; dbg("s: %d, t: %d, shift: %d, ratio: %d", src, tar, *shift, *ratio); return 0; } int fimc_set_scaler_info(struct fimc_ctx *ctx) { 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) { v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "invalid target size: %d x %d", tx, ty); return -EINVAL; } sx = s_frame->width; sy = s_frame->height; if (sx <= 0 || sy <= 0) { err("invalid source size: %d x %d", sx, sy); return -EINVAL; } sc->real_width = sx; sc->real_height = sy; dbg("sx= %d, sy= %d, tx= %d, ty= %d", sx, sy, tx, ty); 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; 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 void fimc_capture_handler(struct fimc_dev *fimc) { struct fimc_vid_cap *cap = &fimc->vid_cap; struct fimc_vid_buffer *v_buf = NULL; if (!list_empty(&cap->active_buf_q)) { v_buf = active_queue_pop(cap); fimc_buf_finish(fimc, v_buf); } if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) { wake_up(&fimc->irq_queue); return; } if (!list_empty(&cap->pending_buf_q)) { v_buf = pending_queue_pop(cap); fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index); v_buf->index = cap->buf_index; dbg("hw ptr: %d, sw ptr: %d", fimc_hw_get_frame_index(fimc), cap->buf_index); spin_lock(&fimc->irqlock); v_buf->vb.state = VIDEOBUF_ACTIVE; spin_unlock(&fimc->irqlock); /* Move the buffer to the capture active queue */ active_queue_add(cap, v_buf); dbg("next frame: %d, done frame: %d", fimc_hw_get_frame_index(fimc), v_buf->index); if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) cap->buf_index = 0; } else if (test_and_clear_bit(ST_CAPT_STREAM, &fimc->state) && cap->active_buf_cnt <= 1) { fimc_deactivate_capture(fimc); } dbg("frame: %d, active_buf_cnt= %d", fimc_hw_get_frame_index(fimc), cap->active_buf_cnt); } static irqreturn_t fimc_isr(int irq, void *priv) { struct fimc_vid_buffer *src_buf, *dst_buf; struct fimc_ctx *ctx; struct fimc_dev *fimc = priv; BUG_ON(!fimc); fimc_hw_clear_irq(fimc); spin_lock(&fimc->slock); if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) { ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev); if (!ctx || !ctx->m2m_ctx) goto isr_unlock; src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); if (src_buf && dst_buf) { spin_lock(&fimc->irqlock); src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE; wake_up(&src_buf->vb.done); wake_up(&dst_buf->vb.done); spin_unlock(&fimc->irqlock); v4l2_m2m_job_finish(fimc->m2m.m2m_dev, ctx->m2m_ctx); } goto isr_unlock; } if (test_bit(ST_CAPT_RUN, &fimc->state)) fimc_capture_handler(fimc); if (test_and_clear_bit(ST_CAPT_PEND, &fimc->state)) { set_bit(ST_CAPT_RUN, &fimc->state); wake_up(&fimc->irq_queue); } isr_unlock: spin_unlock(&fimc->slock); return IRQ_HANDLED; } /* The color format (planes_cnt, buff_cnt) must be already configured. */ int fimc_prepare_addr(struct fimc_ctx *ctx, struct fimc_vid_buffer *buf, struct fimc_frame *frame, struct fimc_addr *paddr) { int ret = 0; u32 pix_size; if (buf == NULL || frame == NULL) return -EINVAL; pix_size = frame->width * frame->height; dbg("buff_cnt= %d, planes_cnt= %d, frame->size= %d, pix_size= %d", frame->fmt->buff_cnt, frame->fmt->planes_cnt, frame->size, pix_size); if (frame->fmt->buff_cnt == 1) { paddr->y = videobuf_to_dma_contig(&buf->vb); switch (frame->fmt->planes_cnt) { 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 (S5P_FIMC_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; } } 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. */ static void fimc_set_yuv_order(struct fimc_ctx *ctx) { /* The one only mode supported in SoC. */ ctx->in_order_2p = S5P_FIMC_LSB_CRCB; ctx->out_order_2p = S5P_FIMC_LSB_CRCB; /* Set order for 1 plane input formats. */ switch (ctx->s_frame.fmt->color) { case S5P_FIMC_YCRYCB422: ctx->in_order_1p = S5P_FIMC_IN_YCRYCB; break; case S5P_FIMC_CBYCRY422: ctx->in_order_1p = S5P_FIMC_IN_CBYCRY; break; case S5P_FIMC_CRYCBY422: ctx->in_order_1p = S5P_FIMC_IN_CRYCBY; break; case S5P_FIMC_YCBYCR422: default: ctx->in_order_1p = S5P_FIMC_IN_YCBYCR; break; } dbg("ctx->in_order_1p= %d", ctx->in_order_1p); switch (ctx->d_frame.fmt->color) { case S5P_FIMC_YCRYCB422: ctx->out_order_1p = S5P_FIMC_OUT_YCRYCB; break; case S5P_FIMC_CBYCRY422: ctx->out_order_1p = S5P_FIMC_OUT_CBYCRY; break; case S5P_FIMC_CRYCBY422: ctx->out_order_1p = S5P_FIMC_OUT_CRYCBY; break; case S5P_FIMC_YCBYCR422: default: ctx->out_order_1p = S5P_FIMC_OUT_YCBYCR; break; } dbg("ctx->out_order_1p= %d", ctx->out_order_1p); } static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f) { struct samsung_fimc_variant *variant = ctx->fimc_dev->variant; f->dma_offset.y_h = f->offs_h; if (!variant->pix_hoff) f->dma_offset.y_h *= (f->fmt->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->planes_cnt == 3) { f->dma_offset.cb_h >>= 1; f->dma_offset.cr_h >>= 1; } if (f->fmt->color == S5P_FIMC_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); } /** * fimc_prepare_config - check dimensions, operation and color mode * and pre-calculate offset and the scaling coefficients. * * @ctx: hardware context information * @flags: flags indicating which parameters to check/update * * Return: 0 if dimensions are valid or non zero otherwise. */ int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags) { struct fimc_frame *s_frame, *d_frame; struct fimc_vid_buffer *buf = NULL; int ret = 0; s_frame = &ctx->s_frame; d_frame = &ctx->d_frame; if (flags & FIMC_PARAMS) { /* Prepare the DMA offset ratios for scaler. */ fimc_prepare_dma_offset(ctx, &ctx->s_frame); fimc_prepare_dma_offset(ctx, &ctx->d_frame); if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) || s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) { err("out of scaler range"); return -EINVAL; } fimc_set_yuv_order(ctx); } /* Input DMA mode is not allowed when the scaler is disabled. */ ctx->scaler.enabled = 1; if (flags & FIMC_SRC_ADDR) { buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); ret = fimc_prepare_addr(ctx, buf, s_frame, &s_frame->paddr); if (ret) return ret; } if (flags & FIMC_DST_ADDR) { buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); ret = fimc_prepare_addr(ctx, buf, d_frame, &d_frame->paddr); } return ret; } static void fimc_dma_run(void *priv) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc; unsigned long flags; u32 ret; if (WARN(!ctx, "null hardware context\n")) return; fimc = ctx->fimc_dev; spin_lock_irqsave(&ctx->slock, flags); set_bit(ST_M2M_PEND, &fimc->state); ctx->state |= (FIMC_SRC_ADDR | FIMC_DST_ADDR); ret = fimc_prepare_config(ctx, ctx->state); if (ret) { err("Wrong parameters"); goto dma_unlock; } /* Reconfigure hardware if the context has changed. */ if (fimc->m2m.ctx != ctx) { ctx->state |= FIMC_PARAMS; fimc->m2m.ctx = ctx; } fimc_hw_set_input_addr(fimc, &ctx->s_frame.paddr); if (ctx->state & FIMC_PARAMS) { fimc_hw_set_input_path(ctx); fimc_hw_set_in_dma(ctx); if (fimc_set_scaler_info(ctx)) { err("Scaler setup error"); goto dma_unlock; } fimc_hw_set_scaler(ctx); fimc_hw_set_target_format(ctx); fimc_hw_set_rotation(ctx); fimc_hw_set_effect(ctx); } fimc_hw_set_output_path(ctx); if (ctx->state & (FIMC_DST_ADDR | FIMC_PARAMS)) fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr, -1); if (ctx->state & FIMC_PARAMS) fimc_hw_set_out_dma(ctx); fimc_activate_capture(ctx); ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP); fimc_hw_activate_input_dma(fimc, true); dma_unlock: spin_unlock_irqrestore(&ctx->slock, flags); } static void fimc_job_abort(void *priv) { /* Nothing done in job_abort. */ } static void fimc_buf_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) { videobuf_dma_contig_free(vq, vb); vb->state = VIDEOBUF_NEEDS_INIT; } static int fimc_buf_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) { struct fimc_ctx *ctx = vq->priv_data; struct fimc_frame *frame; frame = ctx_get_frame(ctx, vq->type); if (IS_ERR(frame)) return PTR_ERR(frame); *size = (frame->width * frame->height * frame->fmt->depth) >> 3; if (0 == *count) *count = 1; return 0; } static int fimc_buf_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, enum v4l2_field field) { struct fimc_ctx *ctx = vq->priv_data; struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev; struct fimc_frame *frame; int ret; frame = ctx_get_frame(ctx, vq->type); if (IS_ERR(frame)) return PTR_ERR(frame); if (vb->baddr) { if (vb->bsize < frame->size) { v4l2_err(v4l2_dev, "User-provided buffer too small (%d < %d)\n", vb->bsize, frame->size); WARN_ON(1); return -EINVAL; } } else if (vb->state != VIDEOBUF_NEEDS_INIT && vb->bsize < frame->size) { return -EINVAL; } vb->width = frame->width; vb->height = frame->height; vb->bytesperline = (frame->width * frame->fmt->depth) >> 3; vb->size = frame->size; vb->field = field; if (VIDEOBUF_NEEDS_INIT == vb->state) { ret = videobuf_iolock(vq, vb, NULL); if (ret) { v4l2_err(v4l2_dev, "Iolock failed\n"); fimc_buf_release(vq, vb); return ret; } } vb->state = VIDEOBUF_PREPARED; return 0; } static void fimc_buf_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct fimc_ctx *ctx = vq->priv_data; struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_vid_cap *cap = &fimc->vid_cap; unsigned long flags; dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state); if ((ctx->state & FIMC_CTX_M2M) && ctx->m2m_ctx) { v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb); } else if (ctx->state & FIMC_CTX_CAP) { spin_lock_irqsave(&fimc->slock, flags); fimc_vid_cap_buf_queue(fimc, (struct fimc_vid_buffer *)vb); dbg("fimc->cap.active_buf_cnt: %d", fimc->vid_cap.active_buf_cnt); if (cap->active_buf_cnt >= cap->reqbufs_count || cap->active_buf_cnt >= FIMC_MAX_OUT_BUFS) { if (!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) fimc_activate_capture(ctx); } spin_unlock_irqrestore(&fimc->slock, flags); } } struct videobuf_queue_ops fimc_qops = { .buf_setup = fimc_buf_setup, .buf_prepare = fimc_buf_prepare, .buf_queue = fimc_buf_queue, .buf_release = fimc_buf_release, }; static int fimc_m2m_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct fimc_ctx *ctx = file->private_data; struct fimc_dev *fimc = ctx->fimc_dev; strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); strncpy(cap->card, fimc->pdev->name, 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; } int fimc_vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) { struct fimc_fmt *fmt; if (f->index >= ARRAY_SIZE(fimc_formats)) return -EINVAL; fmt = &fimc_formats[f->index]; strncpy(f->description, fmt->name, sizeof(f->description) - 1); f->pixelformat = fmt->fourcc; return 0; } int fimc_vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_frame *frame; frame = ctx_get_frame(ctx, f->type); if (IS_ERR(frame)) return PTR_ERR(frame); if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; f->fmt.pix.width = frame->width; f->fmt.pix.height = frame->height; f->fmt.pix.field = V4L2_FIELD_NONE; f->fmt.pix.pixelformat = frame->fmt->fourcc; mutex_unlock(&fimc->lock); return 0; } struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask) { struct fimc_fmt *fmt; unsigned int i; for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) { fmt = &fimc_formats[i]; if (fmt->fourcc == f->fmt.pix.pixelformat && (fmt->flags & mask)) break; } return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt; } struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f, unsigned int mask) { struct fimc_fmt *fmt; unsigned int i; for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) { fmt = &fimc_formats[i]; if (fmt->mbus_code == f->code && (fmt->flags & mask)) break; } return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt; } int fimc_vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; struct samsung_fimc_variant *variant = fimc->variant; struct v4l2_pix_format *pix = &f->fmt.pix; struct fimc_fmt *fmt; u32 max_width, mod_x, mod_y, mask; int ret = -EINVAL, is_output = 0; if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { if (ctx->state & FIMC_CTX_CAP) return -EINVAL; is_output = 1; } else if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { return -EINVAL; } dbg("w: %d, h: %d, bpl: %d", pix->width, pix->height, pix->bytesperline); if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM; fmt = find_format(f, mask); if (!fmt) { v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n", pix->pixelformat); goto tf_out; } if (pix->field == V4L2_FIELD_ANY) pix->field = V4L2_FIELD_NONE; else if (V4L2_FIELD_NONE != pix->field) goto tf_out; if (is_output) { max_width = variant->pix_limit->scaler_dis_w; mod_x = ffs(variant->min_inp_pixsize) - 1; } else { max_width = variant->pix_limit->out_rot_dis_w; mod_x = ffs(variant->min_out_pixsize) - 1; } if (tiled_fmt(fmt)) { mod_x = 6; /* 64 x 32 pixels tile */ mod_y = 5; } else { if (fimc->id == 1 && fimc->variant->pix_hoff) mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1; else mod_y = mod_x; } dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_width); v4l_bound_align_image(&pix->width, 16, max_width, mod_x, &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0); if (pix->bytesperline == 0 || (pix->bytesperline * 8 / fmt->depth) > pix->width) pix->bytesperline = (pix->width * fmt->depth) >> 3; if (pix->sizeimage == 0) pix->sizeimage = pix->height * pix->bytesperline; dbg("w: %d, h: %d, bpl: %d, depth: %d", pix->width, pix->height, pix->bytesperline, fmt->depth); ret = 0; tf_out: mutex_unlock(&fimc->lock); return ret; } static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; struct v4l2_device *v4l2_dev = &fimc->m2m.v4l2_dev; struct videobuf_queue *vq; struct fimc_frame *frame; struct v4l2_pix_format *pix; unsigned long flags; int ret = 0; ret = fimc_vidioc_try_fmt(file, priv, f); if (ret) return ret; if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); mutex_lock(&vq->vb_lock); if (videobuf_queue_is_busy(vq)) { v4l2_err(v4l2_dev, "%s: queue (%d) busy\n", __func__, f->type); ret = -EBUSY; goto sf_out; } spin_lock_irqsave(&ctx->slock, flags); if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { frame = &ctx->s_frame; ctx->state |= FIMC_SRC_FMT; } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { frame = &ctx->d_frame; ctx->state |= FIMC_DST_FMT; } else { spin_unlock_irqrestore(&ctx->slock, flags); v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Wrong buffer/video queue type (%d)\n", f->type); ret = -EINVAL; goto sf_out; } spin_unlock_irqrestore(&ctx->slock, flags); pix = &f->fmt.pix; frame->fmt = find_format(f, FMT_FLAGS_M2M); if (!frame->fmt) { ret = -EINVAL; goto sf_out; } frame->f_width = pix->bytesperline * 8 / frame->fmt->depth; frame->f_height = pix->height; frame->width = pix->width; frame->height = pix->height; frame->o_width = pix->width; frame->o_height = pix->height; frame->offs_h = 0; frame->offs_v = 0; frame->size = (pix->width * pix->height * frame->fmt->depth) >> 3; vq->field = pix->field; spin_lock_irqsave(&ctx->slock, flags); ctx->state |= FIMC_PARAMS; spin_unlock_irqrestore(&ctx->slock, flags); dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height); sf_out: mutex_unlock(&vq->vb_lock); mutex_unlock(&fimc->lock); return ret; } static int fimc_m2m_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *reqbufs) { struct fimc_ctx *ctx = priv; return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); } static int fimc_m2m_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf) { struct fimc_ctx *ctx = priv; return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); } static int fimc_m2m_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) { struct fimc_ctx *ctx = priv; return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); } static int fimc_m2m_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) { struct fimc_ctx *ctx = priv; return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); } static int fimc_m2m_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { struct fimc_ctx *ctx = priv; return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); } static int fimc_m2m_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) { struct fimc_ctx *ctx = priv; return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); } int fimc_vidioc_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *qc) { struct fimc_ctx *ctx = priv; struct v4l2_queryctrl *c; int ret = -EINVAL; c = get_ctrl(qc->id); if (c) { *qc = *c; return 0; } if (ctx->state & FIMC_CTX_CAP) { if (mutex_lock_interruptible(&ctx->fimc_dev->lock)) return -ERESTARTSYS; ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd, core, queryctrl, qc); mutex_unlock(&ctx->fimc_dev->lock); } return ret; } int fimc_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; int ret = 0; if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; switch (ctrl->id) { case V4L2_CID_HFLIP: ctrl->value = (FLIP_X_AXIS & ctx->flip) ? 1 : 0; break; case V4L2_CID_VFLIP: ctrl->value = (FLIP_Y_AXIS & ctx->flip) ? 1 : 0; break; case V4L2_CID_ROTATE: ctrl->value = ctx->rotation; break; default: if (ctx->state & FIMC_CTX_CAP) { ret = v4l2_subdev_call(fimc->vid_cap.sd, core, g_ctrl, ctrl); } else { v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n"); ret = -EINVAL; } } dbg("ctrl->value= %d", ctrl->value); mutex_unlock(&fimc->lock); return ret; } int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl) { struct v4l2_queryctrl *c; c = get_ctrl(ctrl->id); if (!c) return -EINVAL; if (ctrl->value < c->minimum || ctrl->value > c->maximum || (c->step != 0 && ctrl->value % c->step != 0)) { v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control value\n"); return -ERANGE; } return 0; } int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl) { struct samsung_fimc_variant *variant = ctx->fimc_dev->variant; struct fimc_dev *fimc = ctx->fimc_dev; unsigned long flags; if (ctx->rotation != 0 && (ctrl->id == V4L2_CID_HFLIP || ctrl->id == V4L2_CID_VFLIP)) { v4l2_err(&fimc->m2m.v4l2_dev, "Simultaneous flip and rotation is not supported\n"); return -EINVAL; } spin_lock_irqsave(&ctx->slock, flags); switch (ctrl->id) { case V4L2_CID_HFLIP: if (ctrl->value) ctx->flip |= FLIP_X_AXIS; else ctx->flip &= ~FLIP_X_AXIS; break; case V4L2_CID_VFLIP: if (ctrl->value) ctx->flip |= FLIP_Y_AXIS; else ctx->flip &= ~FLIP_Y_AXIS; break; case V4L2_CID_ROTATE: /* Check for the output rotator availability */ if ((ctrl->value == 90 || ctrl->value == 270) && (ctx->in_path == FIMC_DMA && !variant->has_out_rot)) { spin_unlock_irqrestore(&ctx->slock, flags); return -EINVAL; } else { ctx->rotation = ctrl->value; } break; default: spin_unlock_irqrestore(&ctx->slock, flags); v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n"); return -EINVAL; } ctx->state |= FIMC_PARAMS; spin_unlock_irqrestore(&ctx->slock, flags); return 0; } static int fimc_m2m_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { struct fimc_ctx *ctx = priv; int ret = 0; ret = check_ctrl_val(ctx, ctrl); if (ret) return ret; ret = fimc_s_ctrl(ctx, ctrl); return 0; } static int fimc_m2m_cropcap(struct file *file, void *fh, struct v4l2_cropcap *cr) { struct fimc_frame *frame; struct fimc_ctx *ctx = fh; struct fimc_dev *fimc = ctx->fimc_dev; frame = ctx_get_frame(ctx, cr->type); if (IS_ERR(frame)) return PTR_ERR(frame); if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; cr->bounds.left = 0; cr->bounds.top = 0; cr->bounds.width = frame->f_width; cr->bounds.height = frame->f_height; cr->defrect = cr->bounds; mutex_unlock(&fimc->lock); return 0; } static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) { struct fimc_frame *frame; struct fimc_ctx *ctx = file->private_data; struct fimc_dev *fimc = ctx->fimc_dev; frame = ctx_get_frame(ctx, cr->type); if (IS_ERR(frame)) return PTR_ERR(frame); if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; cr->c.left = frame->offs_h; cr->c.top = frame->offs_v; cr->c.width = frame->width; cr->c.height = frame->height; mutex_unlock(&fimc->lock); return 0; } int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr) { struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_frame *f; u32 min_size, halign; if (cr->c.top < 0 || cr->c.left < 0) { v4l2_err(&fimc->m2m.v4l2_dev, "doesn't support negative values for top & left\n"); return -EINVAL; } if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) f = (ctx->state & FIMC_CTX_CAP) ? &ctx->s_frame : &ctx->d_frame; else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->state & FIMC_CTX_M2M) f = &ctx->s_frame; else return -EINVAL; min_size = (f == &ctx->s_frame) ? fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize; if (ctx->state & FIMC_CTX_M2M) { if (fimc->id == 1 && fimc->variant->pix_hoff) halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1; else halign = ffs(min_size) - 1; /* there are more strict aligment requirements at camera interface */ } else { min_size = 16; halign = 4; } v4l_bound_align_image(&cr->c.width, min_size, f->o_width, ffs(min_size) - 1, &cr->c.height, min_size, f->o_height, halign, 64/(ALIGN(f->fmt->depth, 8))); /* adjust left/top if cropping rectangle is out of bounds */ if (cr->c.left + cr->c.width > f->o_width) cr->c.left = f->o_width - cr->c.width; if (cr->c.top + cr->c.height > f->o_height) cr->c.top = f->o_height - cr->c.height; cr->c.left = round_down(cr->c.left, min_size); cr->c.top = round_down(cr->c.top, ctx->state & FIMC_CTX_M2M ? 8 : 16); dbg("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, f->f_width, f->f_height); return 0; } static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) { struct fimc_ctx *ctx = file->private_data; struct fimc_dev *fimc = ctx->fimc_dev; unsigned long flags; struct fimc_frame *f; int ret; ret = fimc_try_crop(ctx, cr); if (ret) return ret; f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ? &ctx->s_frame : &ctx->d_frame; if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; spin_lock_irqsave(&ctx->slock, flags); if (~ctx->state & (FIMC_SRC_FMT | FIMC_DST_FMT)) { /* Check to see if scaling ratio is within supported range */ if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame); else ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame); if (ret) { v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range"); ret = -EINVAL; goto scr_unlock; } } ctx->state |= FIMC_PARAMS; f->offs_h = cr->c.left; f->offs_v = cr->c.top; f->width = cr->c.width; f->height = cr->c.height; scr_unlock: spin_unlock_irqrestore(&ctx->slock, flags); mutex_unlock(&fimc->lock); return 0; } static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = { .vidioc_querycap = fimc_m2m_querycap, .vidioc_enum_fmt_vid_cap = fimc_vidioc_enum_fmt, .vidioc_enum_fmt_vid_out = fimc_vidioc_enum_fmt, .vidioc_g_fmt_vid_cap = fimc_vidioc_g_fmt, .vidioc_g_fmt_vid_out = fimc_vidioc_g_fmt, .vidioc_try_fmt_vid_cap = fimc_vidioc_try_fmt, .vidioc_try_fmt_vid_out = fimc_vidioc_try_fmt, .vidioc_s_fmt_vid_cap = fimc_m2m_s_fmt, .vidioc_s_fmt_vid_out = fimc_m2m_s_fmt, .vidioc_reqbufs = fimc_m2m_reqbufs, .vidioc_querybuf = fimc_m2m_querybuf, .vidioc_qbuf = fimc_m2m_qbuf, .vidioc_dqbuf = fimc_m2m_dqbuf, .vidioc_streamon = fimc_m2m_streamon, .vidioc_streamoff = fimc_m2m_streamoff, .vidioc_queryctrl = fimc_vidioc_queryctrl, .vidioc_g_ctrl = fimc_vidioc_g_ctrl, .vidioc_s_ctrl = fimc_m2m_s_ctrl, .vidioc_g_crop = fimc_m2m_g_crop, .vidioc_s_crop = fimc_m2m_s_crop, .vidioc_cropcap = fimc_m2m_cropcap }; static void queue_init(void *priv, struct videobuf_queue *vq, enum v4l2_buf_type type) { struct fimc_ctx *ctx = priv; struct fimc_dev *fimc = ctx->fimc_dev; videobuf_queue_dma_contig_init(vq, &fimc_qops, &fimc->pdev->dev, &fimc->irqlock, type, V4L2_FIELD_NONE, sizeof(struct fimc_vid_buffer), priv, NULL); } static int fimc_m2m_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = NULL; int err = 0; if (mutex_lock_interruptible(&fimc->lock)) return -ERESTARTSYS; dbg("pid: %d, state: 0x%lx, refcnt: %d", task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt); /* * Return if the corresponding video capture node * is already opened. */ if (fimc->vid_cap.refcnt > 0) { err = -EBUSY; goto err_unlock; } fimc->m2m.refcnt++; set_bit(ST_OUTDMA_RUN, &fimc->state); ctx = kzalloc(sizeof *ctx, GFP_KERNEL); if (!ctx) { err = -ENOMEM; goto err_unlock; } file->private_data = ctx; ctx->fimc_dev = fimc; /* Default color format */ ctx->s_frame.fmt = &fimc_formats[0]; ctx->d_frame.fmt = &fimc_formats[0]; /* Setup the device context for mem2mem mode. */ ctx->state = FIMC_CTX_M2M; ctx->flags = 0; ctx->in_path = FIMC_DMA; ctx->out_path = FIMC_DMA; spin_lock_init(&ctx->slock); ctx->m2m_ctx = v4l2_m2m_ctx_init(ctx, fimc->m2m.m2m_dev, queue_init); if (IS_ERR(ctx->m2m_ctx)) { err = PTR_ERR(ctx->m2m_ctx); kfree(ctx); } err_unlock: mutex_unlock(&fimc->lock); return err; } static int fimc_m2m_release(struct file *file) { struct fimc_ctx *ctx = file->private_data; struct fimc_dev *fimc = ctx->fimc_dev; mutex_lock(&fimc->lock); dbg("pid: %d, state: 0x%lx, refcnt= %d", task_pid_nr(current), fimc->state, fimc->m2m.refcnt); v4l2_m2m_ctx_release(ctx->m2m_ctx); kfree(ctx); if (--fimc->m2m.refcnt <= 0) clear_bit(ST_OUTDMA_RUN, &fimc->state); mutex_unlock(&fimc->lock); return 0; } static unsigned int fimc_m2m_poll(struct file *file, struct poll_table_struct *wait) { struct fimc_ctx *ctx = file->private_data; return v4l2_m2m_poll(file, ctx->m2m_ctx, wait); } static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma) { struct fimc_ctx *ctx = file->private_data; return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); } static const struct v4l2_file_operations fimc_m2m_fops = { .owner = THIS_MODULE, .open = fimc_m2m_open, .release = fimc_m2m_release, .poll = fimc_m2m_poll, .unlocked_ioctl = video_ioctl2, .mmap = fimc_m2m_mmap, }; static struct v4l2_m2m_ops m2m_ops = { .device_run = fimc_dma_run, .job_abort = fimc_job_abort, }; static int fimc_register_m2m_device(struct fimc_dev *fimc) { struct video_device *vfd; struct platform_device *pdev; struct v4l2_device *v4l2_dev; int ret = 0; if (!fimc) return -ENODEV; pdev = fimc->pdev; v4l2_dev = &fimc->m2m.v4l2_dev; /* set name if it is empty */ if (!v4l2_dev->name[0]) snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "%s.m2m", dev_name(&pdev->dev)); ret = v4l2_device_register(&pdev->dev, v4l2_dev); if (ret) goto err_m2m_r1; vfd = video_device_alloc(); if (!vfd) { v4l2_err(v4l2_dev, "Failed to allocate video device\n"); goto err_m2m_r1; } vfd->fops = &fimc_m2m_fops; vfd->ioctl_ops = &fimc_m2m_ioctl_ops; vfd->minor = -1; vfd->release = video_device_release; snprintf(vfd->name, sizeof(vfd->name), "%s:m2m", dev_name(&pdev->dev)); video_set_drvdata(vfd, fimc); platform_set_drvdata(pdev, fimc); fimc->m2m.vfd = vfd; fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops); if (IS_ERR(fimc->m2m.m2m_dev)) { v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n"); ret = PTR_ERR(fimc->m2m.m2m_dev); goto err_m2m_r2; } ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); if (ret) { v4l2_err(v4l2_dev, "%s(): failed to register video device\n", __func__); goto err_m2m_r3; } v4l2_info(v4l2_dev, "FIMC m2m driver registered as /dev/video%d\n", vfd->num); return 0; err_m2m_r3: v4l2_m2m_release(fimc->m2m.m2m_dev); err_m2m_r2: video_device_release(fimc->m2m.vfd); err_m2m_r1: v4l2_device_unregister(v4l2_dev); return ret; } static void fimc_unregister_m2m_device(struct fimc_dev *fimc) { if (fimc) { v4l2_m2m_release(fimc->m2m.m2m_dev); video_unregister_device(fimc->m2m.vfd); v4l2_device_unregister(&fimc->m2m.v4l2_dev); } } static void fimc_clk_release(struct fimc_dev *fimc) { int i; for (i = 0; i < NUM_FIMC_CLOCKS; i++) { if (fimc->clock[i]) { clk_disable(fimc->clock[i]); clk_put(fimc->clock[i]); } } } static int fimc_clk_get(struct fimc_dev *fimc) { int i; for (i = 0; i < NUM_FIMC_CLOCKS; i++) { fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clock_name[i]); if (IS_ERR(fimc->clock[i])) { dev_err(&fimc->pdev->dev, "failed to get fimc clock: %s\n", fimc_clock_name[i]); return -ENXIO; } clk_enable(fimc->clock[i]); } return 0; } static int fimc_probe(struct platform_device *pdev) { struct fimc_dev *fimc; struct resource *res; struct samsung_fimc_driverdata *drv_data; int ret = 0; dev_dbg(&pdev->dev, "%s():\n", __func__); drv_data = (struct samsung_fimc_driverdata *) platform_get_device_id(pdev)->driver_data; if (pdev->id >= drv_data->num_entities) { dev_err(&pdev->dev, "Invalid platform device id: %d\n", pdev->id); return -EINVAL; } fimc = kzalloc(sizeof(struct fimc_dev), GFP_KERNEL); if (!fimc) return -ENOMEM; fimc->id = pdev->id; fimc->variant = drv_data->variant[fimc->id]; fimc->pdev = pdev; fimc->pdata = pdev->dev.platform_data; fimc->state = ST_IDLE; spin_lock_init(&fimc->irqlock); init_waitqueue_head(&fimc->irq_queue); spin_lock_init(&fimc->slock); mutex_init(&fimc->lock); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "failed to find the registers\n"); ret = -ENOENT; goto err_info; } fimc->regs_res = request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev)); if (!fimc->regs_res) { dev_err(&pdev->dev, "failed to obtain register region\n"); ret = -ENOENT; goto err_info; } fimc->regs = ioremap(res->start, resource_size(res)); if (!fimc->regs) { dev_err(&pdev->dev, "failed to map registers\n"); ret = -ENXIO; goto err_req_region; } ret = fimc_clk_get(fimc); if (ret) goto err_regs_unmap; clk_set_rate(fimc->clock[0], drv_data->lclk_frequency); res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(&pdev->dev, "failed to get IRQ resource\n"); ret = -ENXIO; goto err_clk; } fimc->irq = res->start; fimc_hw_reset(fimc); ret = request_irq(fimc->irq, fimc_isr, 0, pdev->name, fimc); if (ret) { dev_err(&pdev->dev, "failed to install irq (%d)\n", ret); goto err_clk; } ret = fimc_register_m2m_device(fimc); if (ret) goto err_irq; /* At least one camera sensor is required to register capture node */ if (fimc->pdata) { int i; for (i = 0; i < FIMC_MAX_CAMIF_CLIENTS; ++i) if (fimc->pdata->isp_info[i]) break; if (i < FIMC_MAX_CAMIF_CLIENTS) { ret = fimc_register_capture_device(fimc); if (ret) goto err_m2m; } } /* * Exclude the additional output DMA address registers by masking * them out on HW revisions that provide extended capabilites. */ if (fimc->variant->out_buf_count > 4) fimc_hw_set_dma_seq(fimc, 0xF); dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n", __func__, fimc->id); return 0; err_m2m: fimc_unregister_m2m_device(fimc); err_irq: free_irq(fimc->irq, fimc); err_clk: fimc_clk_release(fimc); err_regs_unmap: iounmap(fimc->regs); err_req_region: release_resource(fimc->regs_res); kfree(fimc->regs_res); err_info: kfree(fimc); return ret; } static int __devexit fimc_remove(struct platform_device *pdev) { struct fimc_dev *fimc = (struct fimc_dev *)platform_get_drvdata(pdev); free_irq(fimc->irq, fimc); fimc_hw_reset(fimc); fimc_unregister_m2m_device(fimc); fimc_unregister_capture_device(fimc); fimc_clk_release(fimc); iounmap(fimc->regs); release_resource(fimc->regs_res); kfree(fimc->regs_res); kfree(fimc); dev_info(&pdev->dev, "%s driver unloaded\n", pdev->name); return 0; } /* Image pixel limits, similar across several FIMC HW revisions. */ static struct fimc_pix_limit s5p_pix_limit[3] = { [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, }, }; static struct samsung_fimc_variant fimc0_variant_s5p = { .has_inp_rot = 1, .has_out_rot = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[0], }; static struct samsung_fimc_variant fimc2_variant_s5p = { .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[1], }; static struct samsung_fimc_variant fimc0_variant_s5pv210 = { .pix_hoff = 1, .has_inp_rot = 1, .has_out_rot = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[1], }; static struct samsung_fimc_variant fimc1_variant_s5pv210 = { .pix_hoff = 1, .has_inp_rot = 1, .has_out_rot = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 1, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[2], }; static struct samsung_fimc_variant fimc2_variant_s5pv210 = { .pix_hoff = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 8, .out_buf_count = 4, .pix_limit = &s5p_pix_limit[2], }; static struct samsung_fimc_variant fimc0_variant_s5pv310 = { .pix_hoff = 1, .has_inp_rot = 1, .has_out_rot = 1, .has_cistatus2 = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 1, .out_buf_count = 32, .pix_limit = &s5p_pix_limit[1], }; static struct samsung_fimc_variant fimc2_variant_s5pv310 = { .pix_hoff = 1, .has_cistatus2 = 1, .min_inp_pixsize = 16, .min_out_pixsize = 16, .hor_offs_align = 1, .out_buf_count = 32, .pix_limit = &s5p_pix_limit[2], }; /* S5PC100 */ static struct samsung_fimc_driverdata 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 samsung_fimc_driverdata fimc_drvdata_s5pv210 = { .variant = { [0] = &fimc0_variant_s5pv210, [1] = &fimc1_variant_s5pv210, [2] = &fimc2_variant_s5pv210, }, .num_entities = 3, .lclk_frequency = 166000000UL, }; /* S5PV310, S5PC210 */ static struct samsung_fimc_driverdata fimc_drvdata_s5pv310 = { .variant = { [0] = &fimc0_variant_s5pv310, [1] = &fimc0_variant_s5pv310, [2] = &fimc0_variant_s5pv310, [3] = &fimc2_variant_s5pv310, }, .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 = "s5pv310-fimc", .driver_data = (unsigned long)&fimc_drvdata_s5pv310, }, {}, }; MODULE_DEVICE_TABLE(platform, fimc_driver_ids); static struct platform_driver fimc_driver = { .probe = fimc_probe, .remove = __devexit_p(fimc_remove), .id_table = fimc_driver_ids, .driver = { .name = MODULE_NAME, .owner = THIS_MODULE, } }; static int __init fimc_init(void) { int ret = platform_driver_register(&fimc_driver); if (ret) err("platform_driver_register failed: %d\n", ret); return ret; } static void __exit fimc_exit(void) { platform_driver_unregister(&fimc_driver); } module_init(fimc_init); module_exit(fimc_exit); MODULE_AUTHOR("Sylwester Nawrocki "); MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); MODULE_LICENSE("GPL");