1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * V4L2 Media Controller Driver for Freescale i.MX5/6 SOC
5 * Copyright (c) 2016 Mentor Graphics Inc.
10 #include <linux/platform_device.h>
11 #include <media/v4l2-ctrls.h>
12 #include <media/v4l2-device.h>
13 #include <media/v4l2-fwnode.h>
14 #include <media/v4l2-subdev.h>
15 #include <media/videobuf2-dma-contig.h>
16 #include <video/imx-ipu-v3.h>
19 * Enumeration of the IPU internal sub-devices
32 * Pad definitions for the subdevs with multiple source or
46 VDIC_SINK_PAD_DIRECT = 0,
62 PRPENCVF_SINK_PAD = 0,
67 /* How long to wait for EOF interrupts in the buffer-capture subdevs */
68 #define IMX_MEDIA_EOF_TIMEOUT 1000
70 struct imx_media_pixfmt {
73 int bpp; /* total bpp */
74 /* cycles per pixel for generic (bayer) formats for the parallel bus */
76 enum ipu_color_space cs;
77 bool planar; /* is a planar format */
78 bool bayer; /* is a raw bayer format */
79 bool ipufmt; /* is one of the IPU internal formats */
82 struct imx_media_buffer {
83 struct vb2_v4l2_buffer vbuf; /* v4l buffer must be first */
84 struct list_head list;
87 struct imx_media_video_dev {
88 struct video_device *vfd;
91 struct v4l2_format fmt;
92 /* the compose rectangle */
93 struct v4l2_rect compose;
94 const struct imx_media_pixfmt *cc;
96 /* links this vdev to master list */
97 struct list_head list;
100 static inline struct imx_media_buffer *to_imx_media_vb(struct vb2_buffer *vb)
102 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
104 return container_of(vbuf, struct imx_media_buffer, vbuf);
108 * to support control inheritance to video devices, this
109 * retrieves a pad's list_head of video devices that can
110 * be reached from the pad. Note that only the lists in
111 * source pads get populated, sink pads have empty lists.
113 static inline struct list_head *
114 to_pad_vdev_list(struct v4l2_subdev *sd, int pad_index)
116 struct list_head *vdev_list = sd->host_priv;
118 return vdev_list ? &vdev_list[pad_index] : NULL;
121 /* an entry in a pad's video device list */
122 struct imx_media_pad_vdev {
123 struct imx_media_video_dev *vdev;
124 struct list_head list;
127 struct imx_media_dev {
128 struct media_device md;
129 struct v4l2_device v4l2_dev;
131 /* the pipeline object */
132 struct media_pipeline pipe;
134 struct mutex mutex; /* protect elements below */
136 /* master video device list */
137 struct list_head vdev_list;
139 /* for async subdev registration */
140 struct v4l2_async_notifier notifier;
142 /* the IPU internal subdev's registered synchronously */
143 struct v4l2_subdev *sync_sd[2][NUM_IPU_SUBDEVS];
152 /* imx-media-utils.c */
153 const struct imx_media_pixfmt *
154 imx_media_find_format(u32 fourcc, enum codespace_sel cs_sel, bool allow_bayer);
155 int imx_media_enum_format(u32 *fourcc, u32 index, enum codespace_sel cs_sel);
156 const struct imx_media_pixfmt *
157 imx_media_find_mbus_format(u32 code, enum codespace_sel cs_sel,
159 int imx_media_enum_mbus_format(u32 *code, u32 index, enum codespace_sel cs_sel,
161 const struct imx_media_pixfmt *
162 imx_media_find_ipu_format(u32 code, enum codespace_sel cs_sel);
163 int imx_media_enum_ipu_format(u32 *code, u32 index, enum codespace_sel cs_sel);
164 int imx_media_init_mbus_fmt(struct v4l2_mbus_framefmt *mbus,
165 u32 width, u32 height, u32 code, u32 field,
166 const struct imx_media_pixfmt **cc);
167 int imx_media_init_cfg(struct v4l2_subdev *sd,
168 struct v4l2_subdev_pad_config *cfg);
169 void imx_media_try_colorimetry(struct v4l2_mbus_framefmt *tryfmt,
171 int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix,
172 struct v4l2_mbus_framefmt *mbus,
173 const struct imx_media_pixfmt *cc);
174 int imx_media_mbus_fmt_to_ipu_image(struct ipu_image *image,
175 struct v4l2_mbus_framefmt *mbus);
176 int imx_media_ipu_image_to_mbus_fmt(struct v4l2_mbus_framefmt *mbus,
177 struct ipu_image *image);
178 void imx_media_grp_id_to_sd_name(char *sd_name, int sz,
179 u32 grp_id, int ipu_id);
181 imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd,
182 struct fwnode_handle *fwnode);
184 imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd,
185 const char *devname);
186 void imx_media_add_video_device(struct imx_media_dev *imxmd,
187 struct imx_media_video_dev *vdev);
188 int imx_media_pipeline_csi2_channel(struct media_entity *start_entity);
190 imx_media_pipeline_pad(struct media_entity *start_entity, u32 grp_id,
191 enum v4l2_buf_type buftype, bool upstream);
193 imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id,
195 struct video_device *
196 imx_media_pipeline_video_device(struct media_entity *start_entity,
197 enum v4l2_buf_type buftype, bool upstream);
199 struct imx_media_dma_buf {
205 void imx_media_free_dma_buf(struct device *dev,
206 struct imx_media_dma_buf *buf);
207 int imx_media_alloc_dma_buf(struct device *dev,
208 struct imx_media_dma_buf *buf,
211 int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd,
212 struct media_entity *entity,
215 /* imx-media-dev-common.c */
216 int imx_media_probe_complete(struct v4l2_async_notifier *notifier);
217 struct imx_media_dev *imx_media_dev_init(struct device *dev,
218 const struct media_device_ops *ops);
219 int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
220 const struct v4l2_async_notifier_operations *ops);
222 /* imx-media-fim.c */
223 struct imx_media_fim;
224 void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp);
225 int imx_media_fim_set_stream(struct imx_media_fim *fim,
226 const struct v4l2_fract *frame_interval,
228 int imx_media_fim_add_controls(struct imx_media_fim *fim);
229 struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd);
230 void imx_media_fim_free(struct imx_media_fim *fim);
232 /* imx-media-internal-sd.c */
233 int imx_media_register_ipu_internal_subdevs(struct imx_media_dev *imxmd,
234 struct v4l2_subdev *csi);
235 void imx_media_unregister_ipu_internal_subdevs(struct imx_media_dev *imxmd);
238 int imx_media_add_of_subdevs(struct imx_media_dev *dev,
239 struct device_node *np);
240 int imx_media_create_of_links(struct imx_media_dev *imxmd,
241 struct v4l2_subdev *sd);
242 int imx_media_create_csi_of_links(struct imx_media_dev *imxmd,
243 struct v4l2_subdev *csi);
244 int imx_media_of_add_csi(struct imx_media_dev *imxmd,
245 struct device_node *csi_np);
247 /* imx-media-vdic.c */
248 struct v4l2_subdev *imx_media_vdic_register(struct v4l2_device *v4l2_dev,
249 struct device *ipu_dev,
252 int imx_media_vdic_unregister(struct v4l2_subdev *sd);
254 /* imx-ic-common.c */
255 struct v4l2_subdev *imx_media_ic_register(struct v4l2_device *v4l2_dev,
256 struct device *ipu_dev,
259 int imx_media_ic_unregister(struct v4l2_subdev *sd);
261 /* imx-media-capture.c */
262 struct imx_media_video_dev *
263 imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd,
265 void imx_media_capture_device_remove(struct imx_media_video_dev *vdev);
266 int imx_media_capture_device_register(struct imx_media_video_dev *vdev);
267 void imx_media_capture_device_unregister(struct imx_media_video_dev *vdev);
268 struct imx_media_buffer *
269 imx_media_capture_device_next_buf(struct imx_media_video_dev *vdev);
270 void imx_media_capture_device_error(struct imx_media_video_dev *vdev);
272 /* subdev group ids */
273 #define IMX_MEDIA_GRP_ID_CSI2 BIT(8)
274 #define IMX_MEDIA_GRP_ID_CSI BIT(9)
275 #define IMX_MEDIA_GRP_ID_IPU_CSI_BIT 10
276 #define IMX_MEDIA_GRP_ID_IPU_CSI (0x3 << IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
277 #define IMX_MEDIA_GRP_ID_IPU_CSI0 BIT(IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
278 #define IMX_MEDIA_GRP_ID_IPU_CSI1 (2 << IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
279 #define IMX_MEDIA_GRP_ID_IPU_VDIC BIT(12)
280 #define IMX_MEDIA_GRP_ID_IPU_IC_PRP BIT(13)
281 #define IMX_MEDIA_GRP_ID_IPU_IC_PRPENC BIT(14)
282 #define IMX_MEDIA_GRP_ID_IPU_IC_PRPVF BIT(15)