diff options
Diffstat (limited to 'drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c')
-rw-r--r-- | drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c | 269 |
1 files changed, 29 insertions, 240 deletions
diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c index 02b519dde42a..a15bfb5aea47 100644 --- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c +++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c @@ -41,7 +41,6 @@ #include <media/v4l2-dev.h> #include <media/soc_camera.h> #include <media/drv-intf/sh_mobile_ceu.h> -#include <media/drv-intf/sh_mobile_csi2.h> #include <media/videobuf2-dma-contig.h> #include <media/v4l2-mediabus.h> #include <media/drv-intf/soc_mediabus.h> @@ -99,11 +98,6 @@ struct sh_mobile_ceu_buffer { struct sh_mobile_ceu_dev { struct soc_camera_host ici; - /* Asynchronous CSI2 linking */ - struct v4l2_async_subdev *csi2_asd; - struct v4l2_subdev *csi2_sd; - /* Synchronous probing compatibility */ - struct platform_device *csi2_pdev; unsigned int irq; void __iomem *base; @@ -140,7 +134,7 @@ struct sh_mobile_ceu_cam { unsigned int width; unsigned int height; /* - * User window from S_CROP / G_CROP, produced by client cropping and + * User window from S_SELECTION / G_SELECTION, produced by client cropping and * scaling, CEU scaling and CEU cropping, mapped back onto the client * input window */ @@ -470,7 +464,7 @@ static void sh_mobile_ceu_stop_streaming(struct vb2_queue *q) sh_mobile_ceu_soft_reset(pcdev); } -static struct vb2_ops sh_mobile_ceu_videobuf_ops = { +static const struct vb2_ops sh_mobile_ceu_videobuf_ops = { .queue_setup = sh_mobile_ceu_videobuf_setup, .buf_prepare = sh_mobile_ceu_videobuf_prepare, .buf_queue = sh_mobile_ceu_videobuf_queue, @@ -517,74 +511,20 @@ out: return IRQ_HANDLED; } -static struct v4l2_subdev *find_csi2(struct sh_mobile_ceu_dev *pcdev) -{ - struct v4l2_subdev *sd; - - if (pcdev->csi2_sd) - return pcdev->csi2_sd; - - if (pcdev->csi2_asd) { - char name[] = "sh-mobile-csi2"; - v4l2_device_for_each_subdev(sd, &pcdev->ici.v4l2_dev) - if (!strncmp(name, sd->name, sizeof(name) - 1)) { - pcdev->csi2_sd = sd; - return sd; - } - } - - return NULL; -} - -static struct v4l2_subdev *csi2_subdev(struct sh_mobile_ceu_dev *pcdev, - struct soc_camera_device *icd) -{ - struct v4l2_subdev *sd = pcdev->csi2_sd; - - return sd && sd->grp_id == soc_camera_grp_id(icd) ? sd : NULL; -} - static int sh_mobile_ceu_add_device(struct soc_camera_device *icd) { - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct sh_mobile_ceu_dev *pcdev = ici->priv; - struct v4l2_subdev *csi2_sd = find_csi2(pcdev); - int ret; - - if (csi2_sd) { - csi2_sd->grp_id = soc_camera_grp_id(icd); - v4l2_set_subdev_hostdata(csi2_sd, icd); - } - - ret = v4l2_subdev_call(csi2_sd, core, s_power, 1); - if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) - return ret; - - /* - * -ENODEV is special: either csi2_sd == NULL or the CSI-2 driver - * has not found this soc-camera device among its clients - */ - if (csi2_sd && ret == -ENODEV) - csi2_sd->grp_id = 0; - dev_info(icd->parent, - "SuperH Mobile CEU%s driver attached to camera %d\n", - csi2_sd && csi2_sd->grp_id ? "/CSI-2" : "", icd->devnum); + "SuperH Mobile CEU driver attached to camera %d\n", + icd->devnum); return 0; } static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd) { - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct sh_mobile_ceu_dev *pcdev = ici->priv; - struct v4l2_subdev *csi2_sd = find_csi2(pcdev); - dev_info(icd->parent, "SuperH Mobile CEU driver detached from camera %d\n", icd->devnum); - - v4l2_subdev_call(csi2_sd, core, s_power, 0); } /* Called with .host_lock held */ @@ -704,12 +644,6 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd) cdwdr_width *= 2; } - /* CSI2 special configuration */ - if (csi2_subdev(pcdev, icd)) { - in_width = ((in_width - 2) * 2); - left_offset *= 2; - } - /* Set CAMOR, CAPWR, CFSZR, take care of CDWDR */ camor = left_offset | (top_offset << 16); @@ -758,13 +692,6 @@ static void capture_restore(struct sh_mobile_ceu_dev *pcdev, u32 capsr) ceu_write(pcdev, CAPSR, capsr); } -/* Find the bus subdevice driver, e.g., CSI2 */ -static struct v4l2_subdev *find_bus_subdev(struct sh_mobile_ceu_dev *pcdev, - struct soc_camera_device *icd) -{ - return csi2_subdev(pcdev, icd) ? : soc_camera_to_subdev(icd); -} - #define CEU_BUS_FLAGS (V4L2_MBUS_MASTER | \ V4L2_MBUS_PCLK_SAMPLE_RISING | \ V4L2_MBUS_HSYNC_ACTIVE_HIGH | \ @@ -778,7 +705,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd) { struct soc_camera_host *ici = to_soc_camera_host(icd->parent); struct sh_mobile_ceu_dev *pcdev = ici->priv; - struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd); + struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct sh_mobile_ceu_cam *cam = icd->host_priv; struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,}; unsigned long value, common_flags = CEU_BUS_FLAGS; @@ -866,9 +793,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd) value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0; value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0; - if (csi2_subdev(pcdev, icd)) /* CSI2 mode */ - value |= 3 << 12; - else if (pcdev->is_16bit) + if (pcdev->is_16bit) value |= 1 << 12; else if (pcdev->flags & SH_CEU_FLAG_LOWER_8BIT) value |= 2 << 12; @@ -923,9 +848,7 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd) static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd, unsigned char buswidth) { - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct sh_mobile_ceu_dev *pcdev = ici->priv; - struct v4l2_subdev *sd = find_bus_subdev(pcdev, icd); + struct v4l2_subdev *sd = soc_camera_to_subdev(icd); unsigned long common_flags = CEU_BUS_FLAGS; struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,}; int ret; @@ -1046,12 +969,9 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int return 0; } - if (!csi2_subdev(pcdev, icd)) { - /* Are there any restrictions in the CSI-2 case? */ - ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample); - if (ret < 0) - return 0; - } + ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample); + if (ret < 0) + return 0; if (!icd->host_priv) { struct v4l2_subdev_format fmt = { @@ -1189,17 +1109,16 @@ static void sh_mobile_ceu_put_formats(struct soc_camera_device *icd) * Documentation/video4linux/sh_mobile_ceu_camera.txt for a description of * scaling and cropping algorithms and for the meaning of referenced here steps. */ -static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, - const struct v4l2_crop *a) +static int sh_mobile_ceu_set_selection(struct soc_camera_device *icd, + struct v4l2_selection *sel) { - struct v4l2_crop a_writable = *a; - const struct v4l2_rect *rect = &a_writable.c; + struct v4l2_rect *rect = &sel->r; struct device *dev = icd->parent; struct soc_camera_host *ici = to_soc_camera_host(dev); struct sh_mobile_ceu_dev *pcdev = ici->priv; - struct v4l2_crop cam_crop; + struct v4l2_selection cam_sel; struct sh_mobile_ceu_cam *cam = icd->host_priv; - struct v4l2_rect *cam_rect = &cam_crop.c; + struct v4l2_rect *cam_rect = &cam_sel.r; struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct v4l2_subdev_format fmt = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, @@ -1211,7 +1130,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, u32 capsr, cflcr; int ret; - dev_geo(dev, "S_CROP(%ux%u@%u:%u)\n", rect->width, rect->height, + dev_geo(dev, "S_SELECTION(%ux%u@%u:%u)\n", rect->width, rect->height, rect->left, rect->top); /* During camera cropping its output window can change too, stop CEU */ @@ -1219,10 +1138,10 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, dev_dbg(dev, "CAPSR 0x%x, CFLCR 0x%x\n", capsr, pcdev->cflcr); /* - * 1. - 2. Apply iterative camera S_CROP for new input window, read back + * 1. - 2. Apply iterative camera S_SELECTION for new input window, read back * actual camera rectangle. */ - ret = soc_camera_client_s_crop(sd, &a_writable, &cam_crop, + ret = soc_camera_client_s_selection(sd, sel, &cam_sel, &cam->rect, &cam->subrect); if (ret < 0) return ret; @@ -1331,13 +1250,12 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd, return ret; } -static int sh_mobile_ceu_get_crop(struct soc_camera_device *icd, - struct v4l2_crop *a) +static int sh_mobile_ceu_get_selection(struct soc_camera_device *icd, + struct v4l2_selection *sel) { struct sh_mobile_ceu_cam *cam = icd->host_priv; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - a->c = cam->subrect; + sel->r = cam->subrect; return 0; } @@ -1579,8 +1497,8 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, return ret; } -static int sh_mobile_ceu_set_livecrop(struct soc_camera_device *icd, - const struct v4l2_crop *a) +static int sh_mobile_ceu_set_liveselection(struct soc_camera_device *icd, + struct v4l2_selection *sel) { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct soc_camera_host *ici = to_soc_camera_host(icd->parent); @@ -1599,7 +1517,7 @@ static int sh_mobile_ceu_set_livecrop(struct soc_camera_device *icd, "Client failed to stop the stream: %d\n", ret); else /* Do the crop, if it fails, there's nothing more we can do */ - sh_mobile_ceu_set_crop(icd, a); + sh_mobile_ceu_set_selection(icd, sel); dev_geo(icd->parent, "Output after crop: %ux%u\n", icd->user_width, icd->user_height); @@ -1680,9 +1598,9 @@ static struct soc_camera_host_ops sh_mobile_ceu_host_ops = { .clock_stop = sh_mobile_ceu_clock_stop, .get_formats = sh_mobile_ceu_get_formats, .put_formats = sh_mobile_ceu_put_formats, - .get_crop = sh_mobile_ceu_get_crop, - .set_crop = sh_mobile_ceu_set_crop, - .set_livecrop = sh_mobile_ceu_set_livecrop, + .get_selection = sh_mobile_ceu_get_selection, + .set_selection = sh_mobile_ceu_set_selection, + .set_liveselection = sh_mobile_ceu_set_liveselection, .set_fmt = sh_mobile_ceu_set_fmt, .try_fmt = sh_mobile_ceu_try_fmt, .poll = sh_mobile_ceu_poll, @@ -1721,12 +1639,11 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) struct resource *res; void __iomem *base; unsigned int irq; - int err, i; + int err; struct bus_wait wait = { .completion = COMPLETION_INITIALIZER_ONSTACK(wait.completion), .notifier.notifier_call = bus_notify, }; - struct sh_mobile_ceu_companion *csi2; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); @@ -1821,132 +1738,16 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) pcdev->ici.capabilities = SOCAM_HOST_CAP_STRIDE; if (pcdev->pdata && pcdev->pdata->asd_sizes) { - struct v4l2_async_subdev **asd; - char name[] = "sh-mobile-csi2"; - int j; - - /* - * CSI2 interfacing: several groups can use CSI2, pick up the - * first one - */ - asd = pcdev->pdata->asd; - for (j = 0; pcdev->pdata->asd_sizes[j]; j++) { - for (i = 0; i < pcdev->pdata->asd_sizes[j]; i++, asd++) { - dev_dbg(&pdev->dev, "%s(): subdev #%d, type %u\n", - __func__, i, (*asd)->match_type); - if ((*asd)->match_type == V4L2_ASYNC_MATCH_DEVNAME && - !strncmp(name, (*asd)->match.device_name.name, - sizeof(name) - 1)) { - pcdev->csi2_asd = *asd; - break; - } - } - if (pcdev->csi2_asd) - break; - } - pcdev->ici.asd = pcdev->pdata->asd; pcdev->ici.asd_sizes = pcdev->pdata->asd_sizes; } - /* Legacy CSI2 interfacing */ - csi2 = pcdev->pdata ? pcdev->pdata->csi2 : NULL; - if (csi2) { - /* - * TODO: remove this once all users are converted to - * asynchronous CSI2 probing. If it has to be kept, csi2 - * platform device resources have to be added, using - * platform_device_add_resources() - */ - struct platform_device *csi2_pdev = - platform_device_alloc("sh-mobile-csi2", csi2->id); - struct sh_csi2_pdata *csi2_pdata = csi2->platform_data; - - if (!csi2_pdev) { - err = -ENOMEM; - goto exit_free_clk; - } - - pcdev->csi2_pdev = csi2_pdev; - - err = platform_device_add_data(csi2_pdev, csi2_pdata, - sizeof(*csi2_pdata)); - if (err < 0) - goto exit_pdev_put; - - csi2_pdev->resource = csi2->resource; - csi2_pdev->num_resources = csi2->num_resources; - - err = platform_device_add(csi2_pdev); - if (err < 0) - goto exit_pdev_put; - - wait.dev = &csi2_pdev->dev; - - err = bus_register_notifier(&platform_bus_type, &wait.notifier); - if (err < 0) - goto exit_pdev_unregister; - - /* - * From this point the driver module will not unload, until - * we complete the completion. - */ - - if (!csi2_pdev->dev.driver) { - complete(&wait.completion); - /* Either too late, or probing failed */ - bus_unregister_notifier(&platform_bus_type, &wait.notifier); - err = -ENXIO; - goto exit_pdev_unregister; - } - - /* - * The module is still loaded, in the worst case it is hanging - * in device release on our completion. So, _now_ dereferencing - * the "owner" is safe! - */ - - err = try_module_get(csi2_pdev->dev.driver->owner); - - /* Let notifier complete, if it has been locked */ - complete(&wait.completion); - bus_unregister_notifier(&platform_bus_type, &wait.notifier); - if (!err) { - err = -ENODEV; - goto exit_pdev_unregister; - } - - pcdev->csi2_sd = platform_get_drvdata(csi2_pdev); - } - err = soc_camera_host_register(&pcdev->ici); if (err) - goto exit_csi2_unregister; - - if (csi2) { - err = v4l2_device_register_subdev(&pcdev->ici.v4l2_dev, - pcdev->csi2_sd); - dev_dbg(&pdev->dev, "%s(): ret(register_subdev) = %d\n", - __func__, err); - if (err < 0) - goto exit_host_unregister; - /* v4l2_device_register_subdev() took a reference too */ - module_put(pcdev->csi2_sd->owner); - } + goto exit_free_clk; return 0; -exit_host_unregister: - soc_camera_host_unregister(&pcdev->ici); -exit_csi2_unregister: - if (csi2) { - module_put(pcdev->csi2_pdev->dev.driver->owner); -exit_pdev_unregister: - platform_device_del(pcdev->csi2_pdev); -exit_pdev_put: - pcdev->csi2_pdev->resource = NULL; - platform_device_put(pcdev->csi2_pdev); - } exit_free_clk: pm_runtime_disable(&pdev->dev); exit_release_mem: @@ -1958,21 +1759,11 @@ exit_release_mem: static int sh_mobile_ceu_remove(struct platform_device *pdev) { struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); - struct sh_mobile_ceu_dev *pcdev = container_of(soc_host, - struct sh_mobile_ceu_dev, ici); - struct platform_device *csi2_pdev = pcdev->csi2_pdev; soc_camera_host_unregister(soc_host); pm_runtime_disable(&pdev->dev); if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) dma_release_declared_memory(&pdev->dev); - if (csi2_pdev && csi2_pdev->dev.driver) { - struct module *csi2_drv = csi2_pdev->dev.driver->owner; - platform_device_del(csi2_pdev); - csi2_pdev->resource = NULL; - platform_device_put(csi2_pdev); - module_put(csi2_drv); - } return 0; } @@ -2012,8 +1803,6 @@ static struct platform_driver sh_mobile_ceu_driver = { static int __init sh_mobile_ceu_init(void) { - /* Whatever return code */ - request_module("sh_mobile_csi2"); return platform_driver_register(&sh_mobile_ceu_driver); } |