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 * Pad definitions for the subdevs with multiple source or
33 VDIC_SINK_PAD_DIRECT = 0,
49 PRPENCVF_SINK_PAD = 0,
54 /* How long to wait for EOF interrupts in the buffer-capture subdevs */
55 #define IMX_MEDIA_EOF_TIMEOUT 1000
57 struct imx_media_pixfmt {
60 int bpp; /* total bpp */
61 /* cycles per pixel for generic (bayer) formats for the parallel bus */
63 enum ipu_color_space cs;
64 bool planar; /* is a planar format */
65 bool bayer; /* is a raw bayer format */
66 bool ipufmt; /* is one of the IPU internal formats */
69 struct imx_media_buffer {
70 struct vb2_v4l2_buffer vbuf; /* v4l buffer must be first */
71 struct list_head list;
74 struct imx_media_video_dev {
75 struct video_device *vfd;
78 struct v4l2_format fmt;
79 /* the compose rectangle */
80 struct v4l2_rect compose;
81 const struct imx_media_pixfmt *cc;
83 /* links this vdev to master list */
84 struct list_head list;
87 static inline struct imx_media_buffer *to_imx_media_vb(struct vb2_buffer *vb)
89 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
91 return container_of(vbuf, struct imx_media_buffer, vbuf);
95 * to support control inheritance to video devices, this
96 * retrieves a pad's list_head of video devices that can
97 * be reached from the pad. Note that only the lists in
98 * source pads get populated, sink pads have empty lists.
100 static inline struct list_head *
101 to_pad_vdev_list(struct v4l2_subdev *sd, int pad_index)
103 struct list_head *vdev_list = sd->host_priv;
105 return vdev_list ? &vdev_list[pad_index] : NULL;
108 /* an entry in a pad's video device list */
109 struct imx_media_pad_vdev {
110 struct imx_media_video_dev *vdev;
111 struct list_head list;
114 struct imx_media_ipu_internal_sd_pdata {
115 char sd_name[V4L2_SUBDEV_NAME_SIZE];
120 struct imx_media_async_subdev {
121 /* the base asd - must be first in this struct */
122 struct v4l2_async_subdev asd;
123 /* the platform device of IPU-internal subdevs */
124 struct platform_device *pdev;
127 static inline struct imx_media_async_subdev *
128 to_imx_media_asd(struct v4l2_async_subdev *asd)
130 return container_of(asd, struct imx_media_async_subdev, asd);
133 struct imx_media_dev {
134 struct media_device md;
135 struct v4l2_device v4l2_dev;
137 /* the pipeline object */
138 struct media_pipeline pipe;
140 struct mutex mutex; /* protect elements below */
142 /* master video device list */
143 struct list_head vdev_list;
145 /* IPUs this media driver control, valid after subdevs bound */
146 struct ipu_soc *ipu[2];
148 /* for async subdev registration */
149 struct v4l2_async_notifier notifier;
158 /* imx-media-utils.c */
159 const struct imx_media_pixfmt *
160 imx_media_find_format(u32 fourcc, enum codespace_sel cs_sel, bool allow_bayer);
161 int imx_media_enum_format(u32 *fourcc, u32 index, enum codespace_sel cs_sel);
162 const struct imx_media_pixfmt *
163 imx_media_find_mbus_format(u32 code, enum codespace_sel cs_sel,
165 int imx_media_enum_mbus_format(u32 *code, u32 index, enum codespace_sel cs_sel,
167 const struct imx_media_pixfmt *
168 imx_media_find_ipu_format(u32 code, enum codespace_sel cs_sel);
169 int imx_media_enum_ipu_format(u32 *code, u32 index, enum codespace_sel cs_sel);
170 int imx_media_init_mbus_fmt(struct v4l2_mbus_framefmt *mbus,
171 u32 width, u32 height, u32 code, u32 field,
172 const struct imx_media_pixfmt **cc);
173 int imx_media_init_cfg(struct v4l2_subdev *sd,
174 struct v4l2_subdev_pad_config *cfg);
175 void imx_media_fill_default_mbus_fields(struct v4l2_mbus_framefmt *tryfmt,
176 struct v4l2_mbus_framefmt *fmt,
178 int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix,
179 struct v4l2_rect *compose,
180 const struct v4l2_mbus_framefmt *mbus,
181 const struct imx_media_pixfmt *cc);
182 int imx_media_mbus_fmt_to_ipu_image(struct ipu_image *image,
183 struct v4l2_mbus_framefmt *mbus);
184 int imx_media_ipu_image_to_mbus_fmt(struct v4l2_mbus_framefmt *mbus,
185 struct ipu_image *image);
186 void imx_media_grp_id_to_sd_name(char *sd_name, int sz,
187 u32 grp_id, int ipu_id);
189 imx_media_find_subdev_by_fwnode(struct imx_media_dev *imxmd,
190 struct fwnode_handle *fwnode);
192 imx_media_find_subdev_by_devname(struct imx_media_dev *imxmd,
193 const char *devname);
194 int imx_media_add_video_device(struct imx_media_dev *imxmd,
195 struct imx_media_video_dev *vdev);
196 int imx_media_find_mipi_csi2_channel(struct imx_media_dev *imxmd,
197 struct media_entity *start_entity);
199 imx_media_find_upstream_pad(struct imx_media_dev *imxmd,
200 struct media_entity *start_entity,
203 imx_media_find_upstream_subdev(struct imx_media_dev *imxmd,
204 struct media_entity *start_entity,
207 struct imx_media_dma_buf {
213 void imx_media_free_dma_buf(struct imx_media_dev *imxmd,
214 struct imx_media_dma_buf *buf);
215 int imx_media_alloc_dma_buf(struct imx_media_dev *imxmd,
216 struct imx_media_dma_buf *buf,
219 int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd,
220 struct media_entity *entity,
223 /* imx-media-dev.c */
224 int imx_media_add_async_subdev(struct imx_media_dev *imxmd,
225 struct fwnode_handle *fwnode,
226 struct platform_device *pdev);
228 int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
229 struct v4l2_subdev *sd,
230 struct v4l2_async_subdev *asd);
231 int imx_media_link_notify(struct media_link *link, u32 flags,
232 unsigned int notification);
233 void imx_media_notify(struct v4l2_subdev *sd, unsigned int notification,
235 int imx_media_probe_complete(struct v4l2_async_notifier *notifier);
237 struct imx_media_dev *imx_media_dev_init(struct device *dev);
238 int imx_media_dev_notifier_register(struct imx_media_dev *imxmd);
240 /* imx-media-fim.c */
241 struct imx_media_fim;
242 void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp);
243 int imx_media_fim_set_stream(struct imx_media_fim *fim,
244 const struct v4l2_fract *frame_interval,
246 int imx_media_fim_add_controls(struct imx_media_fim *fim);
247 struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd);
248 void imx_media_fim_free(struct imx_media_fim *fim);
250 /* imx-media-internal-sd.c */
251 int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd,
253 int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd,
254 struct v4l2_subdev *sd);
255 void imx_media_remove_ipu_internal_subdevs(struct imx_media_dev *imxmd);
258 int imx_media_add_of_subdevs(struct imx_media_dev *dev,
259 struct device_node *np);
260 int imx_media_create_of_links(struct imx_media_dev *imxmd,
261 struct v4l2_subdev *sd);
262 int imx_media_create_csi_of_links(struct imx_media_dev *imxmd,
263 struct v4l2_subdev *csi);
264 int imx_media_of_add_csi(struct imx_media_dev *imxmd,
265 struct device_node *csi_np);
267 /* imx-media-capture.c */
268 struct imx_media_video_dev *
269 imx_media_capture_device_init(struct v4l2_subdev *src_sd, int pad);
270 void imx_media_capture_device_remove(struct imx_media_video_dev *vdev);
271 int imx_media_capture_device_register(struct imx_media_dev *md,
272 struct imx_media_video_dev *vdev);
273 void imx_media_capture_device_unregister(struct imx_media_video_dev *vdev);
274 struct imx_media_buffer *
275 imx_media_capture_device_next_buf(struct imx_media_video_dev *vdev);
276 void imx_media_capture_device_set_format(struct imx_media_video_dev *vdev,
277 const struct v4l2_pix_format *pix,
278 const struct v4l2_rect *compose);
279 void imx_media_capture_device_error(struct imx_media_video_dev *vdev);
281 /* subdev group ids */
282 #define IMX_MEDIA_GRP_ID_CSI2 BIT(8)
283 #define IMX_MEDIA_GRP_ID_CSI BIT(9)
284 #define IMX_MEDIA_GRP_ID_IPU_CSI_BIT 10
285 #define IMX_MEDIA_GRP_ID_IPU_CSI (0x3 << IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
286 #define IMX_MEDIA_GRP_ID_IPU_CSI0 BIT(IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
287 #define IMX_MEDIA_GRP_ID_IPU_CSI1 (2 << IMX_MEDIA_GRP_ID_IPU_CSI_BIT)
288 #define IMX_MEDIA_GRP_ID_IPU_VDIC BIT(12)
289 #define IMX_MEDIA_GRP_ID_IPU_IC_PRP BIT(13)
290 #define IMX_MEDIA_GRP_ID_IPU_IC_PRPENC BIT(14)
291 #define IMX_MEDIA_GRP_ID_IPU_IC_PRPVF BIT(15)