Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Samsung S5P/EXYNOS4 SoC series FIMC (video postprocessor) driver |
| 3 | * |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 4 | * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd. |
| 5 | * Sylwester Nawrocki <s.nawrocki@samsung.com> |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published |
| 9 | * by the Free Software Foundation, either version 2 of the License, |
| 10 | * or (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/bug.h> |
| 18 | #include <linux/interrupt.h> |
| 19 | #include <linux/device.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/pm_runtime.h> |
| 22 | #include <linux/list.h> |
| 23 | #include <linux/io.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/clk.h> |
| 26 | #include <media/v4l2-ioctl.h> |
Junghak Sung | c139990 | 2015-09-22 10:30:29 -0300 | [diff] [blame] | 27 | #include <media/videobuf2-v4l2.h> |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 28 | #include <media/videobuf2-dma-contig.h> |
| 29 | |
Sylwester Nawrocki | 0f20956 | 2013-05-31 13:47:03 -0300 | [diff] [blame] | 30 | #include "common.h" |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 31 | #include "fimc-core.h" |
Sylwester Nawrocki | c83a1ff | 2012-05-02 06:14:49 -0300 | [diff] [blame] | 32 | #include "fimc-reg.h" |
Sylwester Nawrocki | 56fa1a6 | 2013-03-24 16:54:25 +0100 | [diff] [blame] | 33 | #include "media-dev.h" |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 34 | |
| 35 | static unsigned int get_m2m_fmt_flags(unsigned int stream_type) |
| 36 | { |
| 37 | if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) |
| 38 | return FMT_FLAGS_M2M_IN; |
| 39 | else |
| 40 | return FMT_FLAGS_M2M_OUT; |
| 41 | } |
| 42 | |
| 43 | void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state) |
| 44 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 45 | struct vb2_v4l2_buffer *src_vb, *dst_vb; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 46 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 47 | if (!ctx || !ctx->fh.m2m_ctx) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 48 | return; |
| 49 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 50 | src_vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
| 51 | dst_vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 52 | |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 53 | if (src_vb) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 54 | v4l2_m2m_buf_done(src_vb, vb_state); |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 55 | if (dst_vb) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 56 | v4l2_m2m_buf_done(dst_vb, vb_state); |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 57 | if (src_vb && dst_vb) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 58 | v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev, |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 59 | ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | /* Complete the transaction which has been scheduled for execution. */ |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 63 | static void fimc_m2m_shutdown(struct fimc_ctx *ctx) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 64 | { |
| 65 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 66 | |
| 67 | if (!fimc_m2m_pending(fimc)) |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 68 | return; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 69 | |
| 70 | fimc_ctx_state_set(FIMC_CTX_SHUT, ctx); |
| 71 | |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 72 | wait_event_timeout(fimc->irq_queue, |
| 73 | !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx), |
| 74 | FIMC_SHUTDOWN_TIMEOUT); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | static int start_streaming(struct vb2_queue *q, unsigned int count) |
| 78 | { |
| 79 | struct fimc_ctx *ctx = q->drv_priv; |
| 80 | int ret; |
| 81 | |
| 82 | ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev); |
| 83 | return ret > 0 ? 0 : ret; |
| 84 | } |
| 85 | |
Hans Verkuil | e37559b | 2014-04-17 02:47:21 -0300 | [diff] [blame] | 86 | static void stop_streaming(struct vb2_queue *q) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 87 | { |
| 88 | struct fimc_ctx *ctx = q->drv_priv; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 89 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 90 | |
Sylwester Nawrocki | f61d500 | 2016-06-29 06:31:30 -0300 | [diff] [blame] | 91 | fimc_m2m_shutdown(ctx); |
| 92 | fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 93 | pm_runtime_put(&ctx->fimc_dev->pdev->dev); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | static void fimc_device_run(void *priv) |
| 97 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 98 | struct vb2_v4l2_buffer *src_vb, *dst_vb; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 99 | struct fimc_ctx *ctx = priv; |
| 100 | struct fimc_frame *sf, *df; |
| 101 | struct fimc_dev *fimc; |
| 102 | unsigned long flags; |
Shaik Ameer Basha | a63bafd | 2012-10-16 09:39:08 -0300 | [diff] [blame] | 103 | int ret; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 104 | |
| 105 | if (WARN(!ctx, "Null context\n")) |
| 106 | return; |
| 107 | |
| 108 | fimc = ctx->fimc_dev; |
| 109 | spin_lock_irqsave(&fimc->slock, flags); |
| 110 | |
| 111 | set_bit(ST_M2M_PEND, &fimc->state); |
| 112 | sf = &ctx->s_frame; |
| 113 | df = &ctx->d_frame; |
| 114 | |
| 115 | if (ctx->state & FIMC_PARAMS) { |
| 116 | /* Prepare the DMA offsets for scaler */ |
| 117 | fimc_prepare_dma_offset(ctx, sf); |
| 118 | fimc_prepare_dma_offset(ctx, df); |
| 119 | } |
| 120 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 121 | src_vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 122 | ret = fimc_prepare_addr(ctx, &src_vb->vb2_buf, sf, &sf->paddr); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 123 | if (ret) |
| 124 | goto dma_unlock; |
| 125 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 126 | dst_vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 127 | ret = fimc_prepare_addr(ctx, &dst_vb->vb2_buf, df, &df->paddr); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 128 | if (ret) |
| 129 | goto dma_unlock; |
| 130 | |
Junghak Sung | d6dd645 | 2015-11-03 08:16:37 -0200 | [diff] [blame] | 131 | dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp; |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 132 | dst_vb->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; |
| 133 | dst_vb->flags |= |
| 134 | src_vb->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK; |
Sylwester Nawrocki | f0c24fd | 2013-04-24 13:07:49 -0300 | [diff] [blame] | 135 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 136 | /* Reconfigure hardware if the context has changed. */ |
| 137 | if (fimc->m2m.ctx != ctx) { |
| 138 | ctx->state |= FIMC_PARAMS; |
| 139 | fimc->m2m.ctx = ctx; |
| 140 | } |
| 141 | |
| 142 | if (ctx->state & FIMC_PARAMS) { |
| 143 | fimc_set_yuv_order(ctx); |
| 144 | fimc_hw_set_input_path(ctx); |
| 145 | fimc_hw_set_in_dma(ctx); |
| 146 | ret = fimc_set_scaler_info(ctx); |
| 147 | if (ret) |
| 148 | goto dma_unlock; |
| 149 | fimc_hw_set_prescaler(ctx); |
| 150 | fimc_hw_set_mainscaler(ctx); |
| 151 | fimc_hw_set_target_format(ctx); |
| 152 | fimc_hw_set_rotation(ctx); |
Sylwester Nawrocki | 9448ab7 | 2012-04-02 06:41:22 -0300 | [diff] [blame] | 153 | fimc_hw_set_effect(ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 154 | fimc_hw_set_out_dma(ctx); |
Sylwester Nawrocki | e80cb1f | 2013-03-26 08:22:21 -0300 | [diff] [blame] | 155 | if (fimc->drv_data->alpha_color) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 156 | fimc_hw_set_rgb_alpha(ctx); |
| 157 | fimc_hw_set_output_path(ctx); |
| 158 | } |
| 159 | fimc_hw_set_input_addr(fimc, &sf->paddr); |
| 160 | fimc_hw_set_output_addr(fimc, &df->paddr, -1); |
| 161 | |
| 162 | fimc_activate_capture(ctx); |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 163 | ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 164 | fimc_hw_activate_input_dma(fimc, true); |
| 165 | |
| 166 | dma_unlock: |
| 167 | spin_unlock_irqrestore(&fimc->slock, flags); |
| 168 | } |
| 169 | |
| 170 | static void fimc_job_abort(void *priv) |
| 171 | { |
| 172 | fimc_m2m_shutdown(priv); |
| 173 | } |
| 174 | |
Hans Verkuil | df9ecb0 | 2015-10-28 00:50:37 -0200 | [diff] [blame] | 175 | static int fimc_queue_setup(struct vb2_queue *vq, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 176 | unsigned int *num_buffers, unsigned int *num_planes, |
Hans Verkuil | 36c0f8b | 2016-04-15 09:15:05 -0300 | [diff] [blame] | 177 | unsigned int sizes[], struct device *alloc_devs[]) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 178 | { |
| 179 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); |
| 180 | struct fimc_frame *f; |
| 181 | int i; |
| 182 | |
| 183 | f = ctx_get_frame(ctx, vq->type); |
| 184 | if (IS_ERR(f)) |
| 185 | return PTR_ERR(f); |
| 186 | /* |
Masahiro Yamada | e1c0506 | 2015-07-07 10:14:59 +0900 | [diff] [blame] | 187 | * Return number of non-contiguous planes (plane buffers) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 188 | * depending on the configured color format. |
| 189 | */ |
| 190 | if (!f->fmt) |
| 191 | return -EINVAL; |
| 192 | |
| 193 | *num_planes = f->fmt->memplanes; |
Hans Verkuil | 2548fee | 2016-02-16 07:30:19 -0200 | [diff] [blame] | 194 | for (i = 0; i < f->fmt->memplanes; i++) |
Nicolas Dufresne | b9684a6 | 2014-03-25 17:53:32 -0300 | [diff] [blame] | 195 | sizes[i] = f->payload[i]; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 196 | return 0; |
| 197 | } |
| 198 | |
| 199 | static int fimc_buf_prepare(struct vb2_buffer *vb) |
| 200 | { |
| 201 | struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 202 | struct fimc_frame *frame; |
| 203 | int i; |
| 204 | |
| 205 | frame = ctx_get_frame(ctx, vb->vb2_queue->type); |
| 206 | if (IS_ERR(frame)) |
| 207 | return PTR_ERR(frame); |
| 208 | |
| 209 | for (i = 0; i < frame->fmt->memplanes; i++) |
| 210 | vb2_set_plane_payload(vb, i, frame->payload[i]); |
| 211 | |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | static void fimc_buf_queue(struct vb2_buffer *vb) |
| 216 | { |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 217 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 218 | struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
Junghak Sung | 2d70071 | 2015-09-22 10:30:30 -0300 | [diff] [blame] | 219 | v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 220 | } |
| 221 | |
Julia Lawall | b7b361f | 2016-09-08 20:59:10 -0300 | [diff] [blame] | 222 | static const struct vb2_ops fimc_qops = { |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 223 | .queue_setup = fimc_queue_setup, |
| 224 | .buf_prepare = fimc_buf_prepare, |
| 225 | .buf_queue = fimc_buf_queue, |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 226 | .wait_prepare = vb2_ops_wait_prepare, |
| 227 | .wait_finish = vb2_ops_wait_finish, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 228 | .stop_streaming = stop_streaming, |
| 229 | .start_streaming = start_streaming, |
| 230 | }; |
| 231 | |
| 232 | /* |
| 233 | * V4L2 ioctl handlers |
| 234 | */ |
| 235 | static int fimc_m2m_querycap(struct file *file, void *fh, |
Sylwester Nawrocki | aceb59e | 2013-04-23 11:36:04 -0300 | [diff] [blame] | 236 | struct v4l2_capability *cap) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 237 | { |
Sylwester Nawrocki | aceb59e | 2013-04-23 11:36:04 -0300 | [diff] [blame] | 238 | struct fimc_dev *fimc = video_drvdata(file); |
| 239 | unsigned int caps; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 240 | |
Sylwester Nawrocki | f0476a8 | 2012-07-26 09:30:00 -0300 | [diff] [blame] | 241 | /* |
| 242 | * This is only a mem-to-mem video device. The capture and output |
| 243 | * device capability flags are left only for backward compatibility |
| 244 | * and are scheduled for removal. |
| 245 | */ |
Sylwester Nawrocki | aceb59e | 2013-04-23 11:36:04 -0300 | [diff] [blame] | 246 | caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 247 | V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE; |
| 248 | |
Sylwester Nawrocki | aceb59e | 2013-04-23 11:36:04 -0300 | [diff] [blame] | 249 | __fimc_vidioc_querycap(&fimc->pdev->dev, cap, caps); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv, |
| 254 | struct v4l2_fmtdesc *f) |
| 255 | { |
| 256 | struct fimc_fmt *fmt; |
| 257 | |
| 258 | fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type), |
| 259 | f->index); |
| 260 | if (!fmt) |
| 261 | return -EINVAL; |
| 262 | |
| 263 | strncpy(f->description, fmt->name, sizeof(f->description) - 1); |
| 264 | f->pixelformat = fmt->fourcc; |
| 265 | return 0; |
| 266 | } |
| 267 | |
| 268 | static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh, |
| 269 | struct v4l2_format *f) |
| 270 | { |
| 271 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
| 272 | struct fimc_frame *frame = ctx_get_frame(ctx, f->type); |
| 273 | |
| 274 | if (IS_ERR(frame)) |
| 275 | return PTR_ERR(frame); |
| 276 | |
Sylwester Nawrocki | fa8880b | 2013-01-11 06:36:19 -0300 | [diff] [blame] | 277 | __fimc_get_format(frame, f); |
| 278 | return 0; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f) |
| 282 | { |
| 283 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 405f230 | 2012-08-02 10:27:46 -0300 | [diff] [blame] | 284 | const struct fimc_variant *variant = fimc->variant; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 285 | struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; |
| 286 | struct fimc_fmt *fmt; |
| 287 | u32 max_w, mod_x, mod_y; |
| 288 | |
| 289 | if (!IS_M2M(f->type)) |
| 290 | return -EINVAL; |
| 291 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 292 | fmt = fimc_find_format(&pix->pixelformat, NULL, |
| 293 | get_m2m_fmt_flags(f->type), 0); |
| 294 | if (WARN(fmt == NULL, "Pixel format lookup failed")) |
| 295 | return -EINVAL; |
| 296 | |
| 297 | if (pix->field == V4L2_FIELD_ANY) |
| 298 | pix->field = V4L2_FIELD_NONE; |
| 299 | else if (pix->field != V4L2_FIELD_NONE) |
| 300 | return -EINVAL; |
| 301 | |
| 302 | if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { |
| 303 | max_w = variant->pix_limit->scaler_dis_w; |
| 304 | mod_x = ffs(variant->min_inp_pixsize) - 1; |
| 305 | } else { |
| 306 | max_w = variant->pix_limit->out_rot_dis_w; |
| 307 | mod_x = ffs(variant->min_out_pixsize) - 1; |
| 308 | } |
| 309 | |
| 310 | if (tiled_fmt(fmt)) { |
| 311 | mod_x = 6; /* 64 x 32 pixels tile */ |
| 312 | mod_y = 5; |
| 313 | } else { |
| 314 | if (variant->min_vsize_align == 1) |
| 315 | mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1; |
| 316 | else |
| 317 | mod_y = ffs(variant->min_vsize_align) - 1; |
| 318 | } |
| 319 | |
| 320 | v4l_bound_align_image(&pix->width, 16, max_w, mod_x, |
| 321 | &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0); |
| 322 | |
| 323 | fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp); |
| 324 | return 0; |
| 325 | } |
| 326 | |
| 327 | static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh, |
| 328 | struct v4l2_format *f) |
| 329 | { |
| 330 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 331 | return fimc_try_fmt_mplane(ctx, f); |
| 332 | } |
| 333 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 334 | static void __set_frame_format(struct fimc_frame *frame, struct fimc_fmt *fmt, |
| 335 | struct v4l2_pix_format_mplane *pixm) |
| 336 | { |
| 337 | int i; |
| 338 | |
Nicolas Dufresne | 8411323 | 2014-03-25 17:52:31 -0300 | [diff] [blame] | 339 | for (i = 0; i < fmt->memplanes; i++) { |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 340 | frame->bytesperline[i] = pixm->plane_fmt[i].bytesperline; |
| 341 | frame->payload[i] = pixm->plane_fmt[i].sizeimage; |
| 342 | } |
| 343 | |
| 344 | frame->f_width = pixm->width; |
| 345 | frame->f_height = pixm->height; |
| 346 | frame->o_width = pixm->width; |
| 347 | frame->o_height = pixm->height; |
| 348 | frame->width = pixm->width; |
| 349 | frame->height = pixm->height; |
| 350 | frame->offs_h = 0; |
| 351 | frame->offs_v = 0; |
| 352 | frame->fmt = fmt; |
| 353 | } |
| 354 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 355 | static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh, |
| 356 | struct v4l2_format *f) |
| 357 | { |
| 358 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
| 359 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 360 | struct fimc_fmt *fmt; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 361 | struct vb2_queue *vq; |
| 362 | struct fimc_frame *frame; |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 363 | int ret; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 364 | |
| 365 | ret = fimc_try_fmt_mplane(ctx, f); |
| 366 | if (ret) |
| 367 | return ret; |
| 368 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 369 | vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 370 | |
| 371 | if (vb2_is_busy(vq)) { |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 372 | v4l2_err(&fimc->m2m.vfd, "queue (%d) busy\n", f->type); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 373 | return -EBUSY; |
| 374 | } |
| 375 | |
| 376 | if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) |
| 377 | frame = &ctx->s_frame; |
| 378 | else |
| 379 | frame = &ctx->d_frame; |
| 380 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 381 | fmt = fimc_find_format(&f->fmt.pix_mp.pixelformat, NULL, |
| 382 | get_m2m_fmt_flags(f->type), 0); |
| 383 | if (!fmt) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 384 | return -EINVAL; |
| 385 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 386 | __set_frame_format(frame, fmt, &f->fmt.pix_mp); |
| 387 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 388 | /* Update RGB Alpha control state and value range */ |
| 389 | fimc_alpha_ctrl_update(ctx); |
| 390 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 391 | return 0; |
| 392 | } |
| 393 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 394 | static int fimc_m2m_cropcap(struct file *file, void *fh, |
| 395 | struct v4l2_cropcap *cr) |
| 396 | { |
| 397 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
| 398 | struct fimc_frame *frame; |
| 399 | |
| 400 | frame = ctx_get_frame(ctx, cr->type); |
| 401 | if (IS_ERR(frame)) |
| 402 | return PTR_ERR(frame); |
| 403 | |
| 404 | cr->bounds.left = 0; |
| 405 | cr->bounds.top = 0; |
| 406 | cr->bounds.width = frame->o_width; |
| 407 | cr->bounds.height = frame->o_height; |
| 408 | cr->defrect = cr->bounds; |
| 409 | |
| 410 | return 0; |
| 411 | } |
| 412 | |
| 413 | static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) |
| 414 | { |
| 415 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
| 416 | struct fimc_frame *frame; |
| 417 | |
| 418 | frame = ctx_get_frame(ctx, cr->type); |
| 419 | if (IS_ERR(frame)) |
| 420 | return PTR_ERR(frame); |
| 421 | |
| 422 | cr->c.left = frame->offs_h; |
| 423 | cr->c.top = frame->offs_v; |
| 424 | cr->c.width = frame->width; |
| 425 | cr->c.height = frame->height; |
| 426 | |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr) |
| 431 | { |
| 432 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 433 | struct fimc_frame *f; |
| 434 | u32 min_size, halign, depth = 0; |
| 435 | int i; |
| 436 | |
| 437 | if (cr->c.top < 0 || cr->c.left < 0) { |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 438 | v4l2_err(&fimc->m2m.vfd, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 439 | "doesn't support negative values for top & left\n"); |
| 440 | return -EINVAL; |
| 441 | } |
| 442 | if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
| 443 | f = &ctx->d_frame; |
| 444 | else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) |
| 445 | f = &ctx->s_frame; |
| 446 | else |
| 447 | return -EINVAL; |
| 448 | |
| 449 | min_size = (f == &ctx->s_frame) ? |
| 450 | fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize; |
| 451 | |
| 452 | /* Get pixel alignment constraints. */ |
| 453 | if (fimc->variant->min_vsize_align == 1) |
| 454 | halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1; |
| 455 | else |
| 456 | halign = ffs(fimc->variant->min_vsize_align) - 1; |
| 457 | |
Nicolas Dufresne | 8411323 | 2014-03-25 17:52:31 -0300 | [diff] [blame] | 458 | for (i = 0; i < f->fmt->memplanes; i++) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 459 | depth += f->fmt->depth[i]; |
| 460 | |
| 461 | v4l_bound_align_image(&cr->c.width, min_size, f->o_width, |
| 462 | ffs(min_size) - 1, |
| 463 | &cr->c.height, min_size, f->o_height, |
| 464 | halign, 64/(ALIGN(depth, 8))); |
| 465 | |
| 466 | /* adjust left/top if cropping rectangle is out of bounds */ |
| 467 | if (cr->c.left + cr->c.width > f->o_width) |
| 468 | cr->c.left = f->o_width - cr->c.width; |
| 469 | if (cr->c.top + cr->c.height > f->o_height) |
| 470 | cr->c.top = f->o_height - cr->c.height; |
| 471 | |
| 472 | cr->c.left = round_down(cr->c.left, min_size); |
| 473 | cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align); |
| 474 | |
| 475 | dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d", |
| 476 | cr->c.left, cr->c.top, cr->c.width, cr->c.height, |
| 477 | f->f_width, f->f_height); |
| 478 | |
| 479 | return 0; |
| 480 | } |
| 481 | |
Hans Verkuil | 24c54f7 | 2012-09-05 05:10:48 -0300 | [diff] [blame] | 482 | static int fimc_m2m_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop) |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 483 | { |
| 484 | struct fimc_ctx *ctx = fh_to_ctx(fh); |
| 485 | struct fimc_dev *fimc = ctx->fimc_dev; |
Hans Verkuil | 24c54f7 | 2012-09-05 05:10:48 -0300 | [diff] [blame] | 486 | struct v4l2_crop cr = *crop; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 487 | struct fimc_frame *f; |
| 488 | int ret; |
| 489 | |
Hans Verkuil | 24c54f7 | 2012-09-05 05:10:48 -0300 | [diff] [blame] | 490 | ret = fimc_m2m_try_crop(ctx, &cr); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 491 | if (ret) |
| 492 | return ret; |
| 493 | |
Hans Verkuil | 24c54f7 | 2012-09-05 05:10:48 -0300 | [diff] [blame] | 494 | f = (cr.type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ? |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 495 | &ctx->s_frame : &ctx->d_frame; |
| 496 | |
| 497 | /* Check to see if scaling ratio is within supported range */ |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 498 | if (cr.type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { |
| 499 | ret = fimc_check_scaler_ratio(ctx, cr.c.width, |
| 500 | cr.c.height, ctx->d_frame.width, |
| 501 | ctx->d_frame.height, ctx->rotation); |
| 502 | } else { |
| 503 | ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width, |
| 504 | ctx->s_frame.height, cr.c.width, |
| 505 | cr.c.height, ctx->rotation); |
| 506 | } |
| 507 | if (ret) { |
| 508 | v4l2_err(&fimc->m2m.vfd, "Out of scaler range\n"); |
| 509 | return -EINVAL; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 510 | } |
| 511 | |
Hans Verkuil | 24c54f7 | 2012-09-05 05:10:48 -0300 | [diff] [blame] | 512 | f->offs_h = cr.c.left; |
| 513 | f->offs_v = cr.c.top; |
| 514 | f->width = cr.c.width; |
| 515 | f->height = cr.c.height; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 516 | |
| 517 | fimc_ctx_state_set(FIMC_PARAMS, ctx); |
| 518 | |
| 519 | return 0; |
| 520 | } |
| 521 | |
| 522 | static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = { |
| 523 | .vidioc_querycap = fimc_m2m_querycap, |
| 524 | .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane, |
| 525 | .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane, |
| 526 | .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane, |
| 527 | .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane, |
| 528 | .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane, |
| 529 | .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane, |
| 530 | .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane, |
| 531 | .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane, |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 532 | .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
| 533 | .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
| 534 | .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, |
| 535 | .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
| 536 | .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, |
| 537 | .vidioc_streamon = v4l2_m2m_ioctl_streamon, |
| 538 | .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 539 | .vidioc_g_crop = fimc_m2m_g_crop, |
| 540 | .vidioc_s_crop = fimc_m2m_s_crop, |
| 541 | .vidioc_cropcap = fimc_m2m_cropcap |
| 542 | |
| 543 | }; |
| 544 | |
| 545 | static int queue_init(void *priv, struct vb2_queue *src_vq, |
| 546 | struct vb2_queue *dst_vq) |
| 547 | { |
| 548 | struct fimc_ctx *ctx = priv; |
| 549 | int ret; |
| 550 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 551 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; |
Tomasz Stanislawski | 9bd09fd | 2012-06-14 10:37:49 -0300 | [diff] [blame] | 552 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 553 | src_vq->drv_priv = ctx; |
| 554 | src_vq->ops = &fimc_qops; |
| 555 | src_vq->mem_ops = &vb2_dma_contig_memops; |
| 556 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
Sakari Ailus | ade4868 | 2014-02-25 19:12:19 -0300 | [diff] [blame] | 557 | src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 558 | src_vq->lock = &ctx->fimc_dev->lock; |
Hans Verkuil | 2548fee | 2016-02-16 07:30:19 -0200 | [diff] [blame] | 559 | src_vq->dev = &ctx->fimc_dev->pdev->dev; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 560 | |
| 561 | ret = vb2_queue_init(src_vq); |
| 562 | if (ret) |
| 563 | return ret; |
| 564 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 565 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
Tomasz Stanislawski | 9bd09fd | 2012-06-14 10:37:49 -0300 | [diff] [blame] | 566 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 567 | dst_vq->drv_priv = ctx; |
| 568 | dst_vq->ops = &fimc_qops; |
| 569 | dst_vq->mem_ops = &vb2_dma_contig_memops; |
| 570 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
Sakari Ailus | ade4868 | 2014-02-25 19:12:19 -0300 | [diff] [blame] | 571 | dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 572 | dst_vq->lock = &ctx->fimc_dev->lock; |
Hans Verkuil | 2548fee | 2016-02-16 07:30:19 -0200 | [diff] [blame] | 573 | dst_vq->dev = &ctx->fimc_dev->pdev->dev; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 574 | |
| 575 | return vb2_queue_init(dst_vq); |
| 576 | } |
| 577 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 578 | static int fimc_m2m_set_default_format(struct fimc_ctx *ctx) |
| 579 | { |
| 580 | struct v4l2_pix_format_mplane pixm = { |
| 581 | .pixelformat = V4L2_PIX_FMT_RGB32, |
| 582 | .width = 800, |
| 583 | .height = 600, |
| 584 | .plane_fmt[0] = { |
| 585 | .bytesperline = 800 * 4, |
| 586 | .sizeimage = 800 * 4 * 600, |
| 587 | }, |
| 588 | }; |
| 589 | struct fimc_fmt *fmt; |
| 590 | |
| 591 | fmt = fimc_find_format(&pixm.pixelformat, NULL, FMT_FLAGS_M2M, 0); |
| 592 | if (!fmt) |
| 593 | return -EINVAL; |
| 594 | |
| 595 | __set_frame_format(&ctx->s_frame, fmt, &pixm); |
| 596 | __set_frame_format(&ctx->d_frame, fmt, &pixm); |
| 597 | |
| 598 | return 0; |
| 599 | } |
| 600 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 601 | static int fimc_m2m_open(struct file *file) |
| 602 | { |
| 603 | struct fimc_dev *fimc = video_drvdata(file); |
| 604 | struct fimc_ctx *ctx; |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 605 | int ret = -EBUSY; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 606 | |
Sylwester Nawrocki | c444914 | 2013-03-25 16:36:35 -0300 | [diff] [blame] | 607 | pr_debug("pid: %d, state: %#lx\n", task_pid_nr(current), fimc->state); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 608 | |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 609 | if (mutex_lock_interruptible(&fimc->lock)) |
| 610 | return -ERESTARTSYS; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 611 | /* |
Sylwester Nawrocki | c444914 | 2013-03-25 16:36:35 -0300 | [diff] [blame] | 612 | * Don't allow simultaneous open() of the mem-to-mem and the |
| 613 | * capture video node that belong to same FIMC IP instance. |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 614 | */ |
Sylwester Nawrocki | c444914 | 2013-03-25 16:36:35 -0300 | [diff] [blame] | 615 | if (test_bit(ST_CAPT_BUSY, &fimc->state)) |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 616 | goto unlock; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 617 | |
Sachin Kamat | 26ee7f4 | 2012-08-17 03:28:27 -0300 | [diff] [blame] | 618 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 619 | if (!ctx) { |
| 620 | ret = -ENOMEM; |
| 621 | goto unlock; |
| 622 | } |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 623 | v4l2_fh_init(&ctx->fh, &fimc->m2m.vfd); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 624 | ctx->fimc_dev = fimc; |
| 625 | |
| 626 | /* Default color format */ |
| 627 | ctx->s_frame.fmt = fimc_get_format(0); |
| 628 | ctx->d_frame.fmt = fimc_get_format(0); |
| 629 | |
| 630 | ret = fimc_ctrls_create(ctx); |
| 631 | if (ret) |
| 632 | goto error_fh; |
| 633 | |
| 634 | /* Use separate control handler per file handle */ |
Sylwester Nawrocki | 9448ab7 | 2012-04-02 06:41:22 -0300 | [diff] [blame] | 635 | ctx->fh.ctrl_handler = &ctx->ctrls.handler; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 636 | file->private_data = &ctx->fh; |
| 637 | v4l2_fh_add(&ctx->fh); |
| 638 | |
| 639 | /* Setup the device context for memory-to-memory mode */ |
| 640 | ctx->state = FIMC_CTX_M2M; |
| 641 | ctx->flags = 0; |
Sylwester Nawrocki | 3d112d9 | 2012-04-26 06:26:29 -0300 | [diff] [blame] | 642 | ctx->in_path = FIMC_IO_DMA; |
| 643 | ctx->out_path = FIMC_IO_DMA; |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 644 | ctx->scaler.enabled = 1; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 645 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 646 | ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init); |
| 647 | if (IS_ERR(ctx->fh.m2m_ctx)) { |
| 648 | ret = PTR_ERR(ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 649 | goto error_c; |
| 650 | } |
| 651 | |
| 652 | if (fimc->m2m.refcnt++ == 0) |
| 653 | set_bit(ST_M2M_RUN, &fimc->state); |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 654 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 655 | ret = fimc_m2m_set_default_format(ctx); |
| 656 | if (ret < 0) |
| 657 | goto error_m2m_ctx; |
| 658 | |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 659 | mutex_unlock(&fimc->lock); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 660 | return 0; |
| 661 | |
Sylwester Nawrocki | 81619ce | 2013-01-30 09:54:06 -0300 | [diff] [blame] | 662 | error_m2m_ctx: |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 663 | v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 664 | error_c: |
| 665 | fimc_ctrls_delete(ctx); |
| 666 | error_fh: |
| 667 | v4l2_fh_del(&ctx->fh); |
| 668 | v4l2_fh_exit(&ctx->fh); |
| 669 | kfree(ctx); |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 670 | unlock: |
| 671 | mutex_unlock(&fimc->lock); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | static int fimc_m2m_release(struct file *file) |
| 676 | { |
| 677 | struct fimc_ctx *ctx = fh_to_ctx(file->private_data); |
| 678 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 679 | |
| 680 | dbg("pid: %d, state: 0x%lx, refcnt= %d", |
| 681 | task_pid_nr(current), fimc->state, fimc->m2m.refcnt); |
| 682 | |
Sylwester Nawrocki | ba6b372 | 2012-11-22 11:12:16 -0300 | [diff] [blame] | 683 | mutex_lock(&fimc->lock); |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 684 | |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 685 | v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 686 | fimc_ctrls_delete(ctx); |
| 687 | v4l2_fh_del(&ctx->fh); |
| 688 | v4l2_fh_exit(&ctx->fh); |
| 689 | |
| 690 | if (--fimc->m2m.refcnt <= 0) |
| 691 | clear_bit(ST_M2M_RUN, &fimc->state); |
| 692 | kfree(ctx); |
Sylwester Nawrocki | c2d430a | 2012-06-27 09:56:17 -0300 | [diff] [blame] | 693 | |
| 694 | mutex_unlock(&fimc->lock); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 695 | return 0; |
| 696 | } |
| 697 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 698 | static const struct v4l2_file_operations fimc_m2m_fops = { |
| 699 | .owner = THIS_MODULE, |
| 700 | .open = fimc_m2m_open, |
| 701 | .release = fimc_m2m_release, |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 702 | .poll = v4l2_m2m_fop_poll, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 703 | .unlocked_ioctl = video_ioctl2, |
Sylwester Nawrocki | 43894d8 | 2013-08-25 16:55:58 -0300 | [diff] [blame] | 704 | .mmap = v4l2_m2m_fop_mmap, |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 705 | }; |
| 706 | |
| 707 | static struct v4l2_m2m_ops m2m_ops = { |
| 708 | .device_run = fimc_device_run, |
| 709 | .job_abort = fimc_job_abort, |
| 710 | }; |
| 711 | |
| 712 | int fimc_register_m2m_device(struct fimc_dev *fimc, |
| 713 | struct v4l2_device *v4l2_dev) |
| 714 | { |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 715 | struct video_device *vfd = &fimc->m2m.vfd; |
| 716 | int ret; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 717 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 718 | fimc->v4l2_dev = v4l2_dev; |
| 719 | |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 720 | memset(vfd, 0, sizeof(*vfd)); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 721 | vfd->fops = &fimc_m2m_fops; |
| 722 | vfd->ioctl_ops = &fimc_m2m_ioctl_ops; |
| 723 | vfd->v4l2_dev = v4l2_dev; |
| 724 | vfd->minor = -1; |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 725 | vfd->release = video_device_release_empty; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 726 | vfd->lock = &fimc->lock; |
Hans Verkuil | 954f340 | 2012-09-05 06:05:50 -0300 | [diff] [blame] | 727 | vfd->vfl_dir = VFL_DIR_M2M; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 728 | |
Sylwester Nawrocki | 693f5c4 | 2012-04-20 18:57:25 -0300 | [diff] [blame] | 729 | snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.m2m", fimc->id); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 730 | video_set_drvdata(vfd, fimc); |
| 731 | |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 732 | fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops); |
| 733 | if (IS_ERR(fimc->m2m.m2m_dev)) { |
| 734 | v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n"); |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 735 | return PTR_ERR(fimc->m2m.m2m_dev); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 736 | } |
| 737 | |
Mauro Carvalho Chehab | ab22e77 | 2015-12-11 07:44:40 -0200 | [diff] [blame] | 738 | ret = media_entity_pads_init(&vfd->entity, 0, NULL); |
Sylwester Nawrocki | 693f5c4 | 2012-04-20 18:57:25 -0300 | [diff] [blame] | 739 | if (ret) |
| 740 | goto err_me; |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 741 | |
Sylwester Nawrocki | 693f5c4 | 2012-04-20 18:57:25 -0300 | [diff] [blame] | 742 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); |
| 743 | if (ret) |
| 744 | goto err_vd; |
| 745 | |
| 746 | v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n", |
| 747 | vfd->name, video_device_node_name(vfd)); |
| 748 | return 0; |
| 749 | |
| 750 | err_vd: |
| 751 | media_entity_cleanup(&vfd->entity); |
| 752 | err_me: |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 753 | v4l2_m2m_release(fimc->m2m.m2m_dev); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 754 | return ret; |
| 755 | } |
| 756 | |
| 757 | void fimc_unregister_m2m_device(struct fimc_dev *fimc) |
| 758 | { |
| 759 | if (!fimc) |
| 760 | return; |
| 761 | |
| 762 | if (fimc->m2m.m2m_dev) |
| 763 | v4l2_m2m_release(fimc->m2m.m2m_dev); |
Sylwester Nawrocki | bbc5296 | 2012-07-26 07:59:11 -0300 | [diff] [blame] | 764 | |
| 765 | if (video_is_registered(&fimc->m2m.vfd)) { |
| 766 | video_unregister_device(&fimc->m2m.vfd); |
| 767 | media_entity_cleanup(&fimc->m2m.vfd.entity); |
Sylwester Nawrocki | 97d9742 | 2012-05-08 15:51:24 -0300 | [diff] [blame] | 768 | } |
| 769 | } |