diff options
Diffstat (limited to 'drivers/staging/media/imx/imx-media-internal-sd.c')
| -rw-r--r-- | drivers/staging/media/imx/imx-media-internal-sd.c | 357 |
1 files changed, 157 insertions, 200 deletions
diff --git a/drivers/staging/media/imx/imx-media-internal-sd.c b/drivers/staging/media/imx/imx-media-internal-sd.c index df49ebfbe98a..cb1e4cdd5079 100644 --- a/drivers/staging/media/imx/imx-media-internal-sd.c +++ b/drivers/staging/media/imx/imx-media-internal-sd.c @@ -9,208 +9,138 @@ #include <linux/platform_device.h> #include "imx-media.h" -enum isd_enum { - isd_csi0 = 0, - isd_csi1, - isd_vdic, - isd_ic_prp, - isd_ic_prpenc, - isd_ic_prpvf, - num_isd, -}; - -static const struct internal_subdev_id { - enum isd_enum index; - const char *name; - u32 grp_id; -} isd_id[num_isd] = { - [isd_csi0] = { - .index = isd_csi0, - .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI0, - .name = "imx-ipuv3-csi", - }, - [isd_csi1] = { - .index = isd_csi1, - .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI1, - .name = "imx-ipuv3-csi", - }, - [isd_vdic] = { - .index = isd_vdic, - .grp_id = IMX_MEDIA_GRP_ID_IPU_VDIC, - .name = "imx-ipuv3-vdic", - }, - [isd_ic_prp] = { - .index = isd_ic_prp, - .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRP, - .name = "imx-ipuv3-ic", - }, - [isd_ic_prpenc] = { - .index = isd_ic_prpenc, - .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPENC, - .name = "imx-ipuv3-ic", - }, - [isd_ic_prpvf] = { - .index = isd_ic_prpvf, - .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPVF, - .name = "imx-ipuv3-ic", - }, -}; +/* max pads per internal-sd */ +#define MAX_INTERNAL_PADS 8 +/* max links per internal-sd pad */ +#define MAX_INTERNAL_LINKS 8 struct internal_subdev; struct internal_link { - const struct internal_subdev *remote; + int remote; int local_pad; int remote_pad; }; -/* max pads per internal-sd */ -#define MAX_INTERNAL_PADS 8 -/* max links per internal-sd pad */ -#define MAX_INTERNAL_LINKS 8 - struct internal_pad { + int num_links; struct internal_link link[MAX_INTERNAL_LINKS]; }; -static const struct internal_subdev { - const struct internal_subdev_id *id; +struct internal_subdev { + u32 grp_id; struct internal_pad pad[MAX_INTERNAL_PADS]; -} int_subdev[num_isd] = { - [isd_csi0] = { - .id = &isd_id[isd_csi0], + + struct v4l2_subdev * (*sync_register)(struct v4l2_device *v4l2_dev, + struct device *ipu_dev, + struct ipu_soc *ipu, + u32 grp_id); + int (*sync_unregister)(struct v4l2_subdev *sd); +}; + +static const struct internal_subdev int_subdev[NUM_IPU_SUBDEVS] = { + [IPU_CSI0] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI0, .pad[CSI_SRC_PAD_DIRECT] = { + .num_links = 2, .link = { { .local_pad = CSI_SRC_PAD_DIRECT, - .remote = &int_subdev[isd_ic_prp], + .remote = IPU_IC_PRP, .remote_pad = PRP_SINK_PAD, }, { .local_pad = CSI_SRC_PAD_DIRECT, - .remote = &int_subdev[isd_vdic], + .remote = IPU_VDIC, .remote_pad = VDIC_SINK_PAD_DIRECT, }, }, }, }, - [isd_csi1] = { - .id = &isd_id[isd_csi1], + [IPU_CSI1] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI1, .pad[CSI_SRC_PAD_DIRECT] = { + .num_links = 2, .link = { { .local_pad = CSI_SRC_PAD_DIRECT, - .remote = &int_subdev[isd_ic_prp], + .remote = IPU_IC_PRP, .remote_pad = PRP_SINK_PAD, }, { .local_pad = CSI_SRC_PAD_DIRECT, - .remote = &int_subdev[isd_vdic], + .remote = IPU_VDIC, .remote_pad = VDIC_SINK_PAD_DIRECT, }, }, }, }, - [isd_vdic] = { - .id = &isd_id[isd_vdic], + [IPU_VDIC] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_VDIC, + .sync_register = imx_media_vdic_register, + .sync_unregister = imx_media_vdic_unregister, .pad[VDIC_SRC_PAD_DIRECT] = { + .num_links = 1, .link = { { .local_pad = VDIC_SRC_PAD_DIRECT, - .remote = &int_subdev[isd_ic_prp], + .remote = IPU_IC_PRP, .remote_pad = PRP_SINK_PAD, }, }, }, }, - [isd_ic_prp] = { - .id = &isd_id[isd_ic_prp], + [IPU_IC_PRP] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRP, + .sync_register = imx_media_ic_register, + .sync_unregister = imx_media_ic_unregister, .pad[PRP_SRC_PAD_PRPENC] = { + .num_links = 1, .link = { { .local_pad = PRP_SRC_PAD_PRPENC, - .remote = &int_subdev[isd_ic_prpenc], - .remote_pad = 0, + .remote = IPU_IC_PRPENC, + .remote_pad = PRPENCVF_SINK_PAD, }, }, }, .pad[PRP_SRC_PAD_PRPVF] = { + .num_links = 1, .link = { { .local_pad = PRP_SRC_PAD_PRPVF, - .remote = &int_subdev[isd_ic_prpvf], - .remote_pad = 0, + .remote = IPU_IC_PRPVF, + .remote_pad = PRPENCVF_SINK_PAD, }, }, }, }, - [isd_ic_prpenc] = { - .id = &isd_id[isd_ic_prpenc], + [IPU_IC_PRPENC] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPENC, + .sync_register = imx_media_ic_register, + .sync_unregister = imx_media_ic_unregister, }, - [isd_ic_prpvf] = { - .id = &isd_id[isd_ic_prpvf], + [IPU_IC_PRPVF] = { + .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPVF, + .sync_register = imx_media_ic_register, + .sync_unregister = imx_media_ic_unregister, }, }; -/* form a device name given an internal subdev and ipu id */ -static inline void isd_to_devname(char *devname, int sz, - const struct internal_subdev *isd, - int ipu_id) -{ - int pdev_id = ipu_id * num_isd + isd->id->index; - - snprintf(devname, sz, "%s.%d", isd->id->name, pdev_id); -} - -static const struct internal_subdev *find_intsd_by_grp_id(u32 grp_id) -{ - enum isd_enum i; - - for (i = 0; i < num_isd; i++) { - const struct internal_subdev *isd = &int_subdev[i]; - - if (isd->id->grp_id == grp_id) - return isd; - } - - return NULL; -} - -static struct v4l2_subdev *find_sink(struct imx_media_dev *imxmd, - struct v4l2_subdev *src, - const struct internal_link *link) -{ - char sink_devname[32]; - int ipu_id; - - /* - * retrieve IPU id from subdev name, note: can't get this from - * struct imx_media_ipu_internal_sd_pdata because if src is - * a CSI, it has different struct ipu_client_platformdata which - * does not contain IPU id. - */ - if (sscanf(src->name, "ipu%d", &ipu_id) != 1) - return NULL; - - isd_to_devname(sink_devname, sizeof(sink_devname), - link->remote, ipu_id - 1); - - return imx_media_find_subdev_by_devname(imxmd, sink_devname); -} - -static int create_ipu_internal_link(struct imx_media_dev *imxmd, - struct v4l2_subdev *src, - const struct internal_link *link) +static int create_internal_link(struct imx_media_dev *imxmd, + struct v4l2_subdev *src, + struct v4l2_subdev *sink, + const struct internal_link *link) { - struct v4l2_subdev *sink; int ret; - sink = find_sink(imxmd, src, link); - if (!sink) - return -ENODEV; + /* skip if this link already created */ + if (media_entity_find_link(&src->entity.pads[link->local_pad], + &sink->entity.pads[link->remote_pad])) + return 0; v4l2_info(&imxmd->v4l2_dev, "%s:%d -> %s:%d\n", src->name, link->local_pad, @@ -219,25 +149,21 @@ static int create_ipu_internal_link(struct imx_media_dev *imxmd, ret = media_create_pad_link(&src->entity, link->local_pad, &sink->entity, link->remote_pad, 0); if (ret) - v4l2_err(&imxmd->v4l2_dev, - "create_pad_link failed: %d\n", ret); + v4l2_err(&imxmd->v4l2_dev, "%s failed: %d\n", __func__, ret); return ret; } -int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd, - struct v4l2_subdev *sd) +static int create_ipu_internal_links(struct imx_media_dev *imxmd, + const struct internal_subdev *intsd, + struct v4l2_subdev *sd, + int ipu_id) { - const struct internal_subdev *intsd; const struct internal_pad *intpad; const struct internal_link *link; struct media_pad *pad; int i, j, ret; - intsd = find_intsd_by_grp_id(sd->grp_id); - if (!intsd) - return -ENODEV; - /* create the source->sink links */ for (i = 0; i < sd->entity.num_pads; i++) { intpad = &intsd->pad[i]; @@ -246,13 +172,13 @@ int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd, if (!(pad->flags & MEDIA_PAD_FL_SOURCE)) continue; - for (j = 0; ; j++) { - link = &intpad->link[j]; + for (j = 0; j < intpad->num_links; j++) { + struct v4l2_subdev *sink; - if (!link->remote) - break; + link = &intpad->link[j]; + sink = imxmd->sync_sd[ipu_id][link->remote]; - ret = create_ipu_internal_link(imxmd, sd, link); + ret = create_internal_link(imxmd, sd, sink, link); if (ret) return ret; } @@ -261,85 +187,116 @@ int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd, return 0; } -/* register an internal subdev as a platform device */ -static int add_internal_subdev(struct imx_media_dev *imxmd, - const struct internal_subdev *isd, - int ipu_id) +int imx_media_register_ipu_internal_subdevs(struct imx_media_dev *imxmd, + struct v4l2_subdev *csi) { - struct imx_media_ipu_internal_sd_pdata pdata; - struct platform_device_info pdevinfo = {}; - struct platform_device *pdev; + struct device *ipu_dev = csi->dev->parent; + const struct internal_subdev *intsd; + struct v4l2_subdev *sd; + struct ipu_soc *ipu; + int i, ipu_id, ret; - pdata.grp_id = isd->id->grp_id; + ipu = dev_get_drvdata(ipu_dev); + if (!ipu) { + v4l2_err(&imxmd->v4l2_dev, "invalid IPU device!\n"); + return -ENODEV; + } - /* the id of IPU this subdev will control */ - pdata.ipu_id = ipu_id; + ipu_id = ipu_get_num(ipu); + if (ipu_id > 1) { + v4l2_err(&imxmd->v4l2_dev, "invalid IPU id %d!\n", ipu_id); + return -ENODEV; + } - /* create subdev name */ - imx_media_grp_id_to_sd_name(pdata.sd_name, sizeof(pdata.sd_name), - pdata.grp_id, ipu_id); + mutex_lock(&imxmd->mutex); - pdevinfo.name = isd->id->name; - pdevinfo.id = ipu_id * num_isd + isd->id->index; - pdevinfo.parent = imxmd->md.dev; - pdevinfo.data = &pdata; - pdevinfo.size_data = sizeof(pdata); - pdevinfo.dma_mask = DMA_BIT_MASK(32); + /* register the synchronous subdevs */ + for (i = 0; i < NUM_IPU_SUBDEVS; i++) { + intsd = &int_subdev[i]; - pdev = platform_device_register_full(&pdevinfo); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); + sd = imxmd->sync_sd[ipu_id][i]; - return imx_media_add_async_subdev(imxmd, NULL, pdev); -} + /* + * skip if this sync subdev already registered or its + * not a sync subdev (one of the CSIs) + */ + if (sd || !intsd->sync_register) + continue; -/* adds the internal subdevs in one ipu */ -int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd, - int ipu_id) -{ - enum isd_enum i; - int ret; + mutex_unlock(&imxmd->mutex); + sd = intsd->sync_register(&imxmd->v4l2_dev, ipu_dev, ipu, + intsd->grp_id); + mutex_lock(&imxmd->mutex); + if (IS_ERR(sd)) { + ret = PTR_ERR(sd); + goto err_unwind; + } - for (i = 0; i < num_isd; i++) { - const struct internal_subdev *isd = &int_subdev[i]; + imxmd->sync_sd[ipu_id][i] = sd; + } - /* - * the CSIs are represented in the device-tree, so those - * devices are already added to the async subdev list by - * of_parse_subdev(). - */ - switch (isd->id->grp_id) { - case IMX_MEDIA_GRP_ID_IPU_CSI0: - case IMX_MEDIA_GRP_ID_IPU_CSI1: - ret = 0; - break; - default: - ret = add_internal_subdev(imxmd, isd, ipu_id); - break; + /* + * all the sync subdevs are registered, create the media links + * between them. + */ + for (i = 0; i < NUM_IPU_SUBDEVS; i++) { + intsd = &int_subdev[i]; + + if (intsd->grp_id == csi->grp_id) { + sd = csi; + } else { + sd = imxmd->sync_sd[ipu_id][i]; + if (!sd) + continue; } - if (ret) - goto remove; + ret = create_ipu_internal_links(imxmd, intsd, sd, ipu_id); + if (ret) { + mutex_unlock(&imxmd->mutex); + imx_media_unregister_ipu_internal_subdevs(imxmd); + return ret; + } } + mutex_unlock(&imxmd->mutex); return 0; -remove: - imx_media_remove_ipu_internal_subdevs(imxmd); +err_unwind: + while (--i >= 0) { + intsd = &int_subdev[i]; + sd = imxmd->sync_sd[ipu_id][i]; + if (!sd || !intsd->sync_unregister) + continue; + mutex_unlock(&imxmd->mutex); + intsd->sync_unregister(sd); + mutex_lock(&imxmd->mutex); + } + + mutex_unlock(&imxmd->mutex); return ret; } -void imx_media_remove_ipu_internal_subdevs(struct imx_media_dev *imxmd) +void imx_media_unregister_ipu_internal_subdevs(struct imx_media_dev *imxmd) { - struct imx_media_async_subdev *imxasd; - struct v4l2_async_subdev *asd; + const struct internal_subdev *intsd; + struct v4l2_subdev *sd; + int i, j; - list_for_each_entry(asd, &imxmd->notifier.asd_list, asd_list) { - imxasd = to_imx_media_asd(asd); + mutex_lock(&imxmd->mutex); - if (!imxasd->pdev) - continue; + for (i = 0; i < 2; i++) { + for (j = 0; j < NUM_IPU_SUBDEVS; j++) { + intsd = &int_subdev[j]; + sd = imxmd->sync_sd[i][j]; + + if (!sd || !intsd->sync_unregister) + continue; - platform_device_unregister(imxasd->pdev); + mutex_unlock(&imxmd->mutex); + intsd->sync_unregister(sd); + mutex_lock(&imxmd->mutex); + } } + + mutex_unlock(&imxmd->mutex); } |