diff options
Diffstat (limited to 'drivers/media/pci/intel/ivsc')
| -rw-r--r-- | drivers/media/pci/intel/ivsc/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/media/pci/intel/ivsc/mei_csi.c | 120 |
2 files changed, 47 insertions, 74 deletions
diff --git a/drivers/media/pci/intel/ivsc/Kconfig b/drivers/media/pci/intel/ivsc/Kconfig index 407a800c81..a7d9607ecd 100644 --- a/drivers/media/pci/intel/ivsc/Kconfig +++ b/drivers/media/pci/intel/ivsc/Kconfig @@ -4,6 +4,7 @@ config INTEL_VSC tristate "Intel Visual Sensing Controller" depends on INTEL_MEI && ACPI && VIDEO_DEV + depends on IPU_BRIDGE || !IPU_BRIDGE select MEDIA_CONTROLLER select VIDEO_V4L2_SUBDEV_API select V4L2_FWNODE diff --git a/drivers/media/pci/intel/ivsc/mei_csi.c b/drivers/media/pci/intel/ivsc/mei_csi.c index 3c74d06a27..16791a7f4f 100644 --- a/drivers/media/pci/intel/ivsc/mei_csi.c +++ b/drivers/media/pci/intel/ivsc/mei_csi.c @@ -19,12 +19,15 @@ #include <linux/mei_cl_bus.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/pci.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/units.h> #include <linux/uuid.h> #include <linux/workqueue.h> +#include <media/ipu-bridge.h> +#include <media/ipu6-pci-table.h> #include <media/v4l2-async.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-fwnode.h> @@ -123,12 +126,13 @@ struct mei_csi { struct v4l2_ctrl_handler ctrl_handler; struct v4l2_ctrl *freq_ctrl; struct v4l2_ctrl *privacy_ctrl; + /* lock for v4l2 controls */ + struct mutex ctrl_lock; unsigned int remote_pad; /* start streaming or not */ int streaming; struct media_pad pads[CSI_NUM_PADS]; - struct v4l2_mbus_framefmt format_mbus[CSI_NUM_PADS]; /* number of data lanes used on the CSI-2 link */ u32 nr_of_lanes; @@ -188,7 +192,11 @@ static int mei_csi_send(struct mei_csi *csi, u8 *buf, size_t len) /* command response status */ ret = csi->cmd_response.status; - if (ret) { + if (ret == -1) { + /* notify privacy on instead of reporting error */ + ret = 0; + v4l2_ctrl_s_ctrl(csi->privacy_ctrl, 1); + } else if (ret) { ret = -EINVAL; goto out; } @@ -329,58 +337,17 @@ err: return ret; } -static struct v4l2_mbus_framefmt * -mei_csi_get_pad_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - unsigned int pad, u32 which) -{ - struct mei_csi *csi = sd_to_csi(sd); - - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_state_get_format(sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &csi->format_mbus[pad]; - default: - return NULL; - } -} - static int mei_csi_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state) { struct v4l2_mbus_framefmt *mbusformat; - struct mei_csi *csi = sd_to_csi(sd); unsigned int i; - mutex_lock(&csi->lock); - for (i = 0; i < sd->entity.num_pads; i++) { mbusformat = v4l2_subdev_state_get_format(sd_state, i); *mbusformat = mei_csi_format_mbus_default; } - mutex_unlock(&csi->lock); - - return 0; -} - -static int mei_csi_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *mbusformat; - struct mei_csi *csi = sd_to_csi(sd); - - mutex_lock(&csi->lock); - - mbusformat = mei_csi_get_pad_format(sd, sd_state, format->pad, - format->which); - if (mbusformat) - format->format = *mbusformat; - - mutex_unlock(&csi->lock); - return 0; } @@ -388,20 +355,17 @@ static int mei_csi_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { - struct v4l2_mbus_framefmt *source_mbusformat; - struct v4l2_mbus_framefmt *mbusformat; - struct mei_csi *csi = sd_to_csi(sd); - struct media_pad *pad; + struct v4l2_mbus_framefmt *source_fmt; + struct v4l2_mbus_framefmt *sink_fmt; - mbusformat = mei_csi_get_pad_format(sd, sd_state, format->pad, - format->which); - if (!mbusformat) - return -EINVAL; + sink_fmt = v4l2_subdev_state_get_format(sd_state, CSI_PAD_SINK); + source_fmt = v4l2_subdev_state_get_format(sd_state, CSI_PAD_SOURCE); - source_mbusformat = mei_csi_get_pad_format(sd, sd_state, CSI_PAD_SOURCE, - format->which); - if (!source_mbusformat) - return -EINVAL; + if (format->pad) { + *source_fmt = *sink_fmt; + + return 0; + } v4l_bound_align_image(&format->format.width, 1, 65536, 0, &format->format.height, 1, 65536, 0, 0); @@ -504,18 +468,8 @@ static int mei_csi_set_fmt(struct v4l2_subdev *sd, if (format->format.field == V4L2_FIELD_ANY) format->format.field = V4L2_FIELD_NONE; - mutex_lock(&csi->lock); - - pad = &csi->pads[format->pad]; - if (pad->flags & MEDIA_PAD_FL_SOURCE) - format->format = csi->format_mbus[CSI_PAD_SINK]; - - *mbusformat = format->format; - - if (pad->flags & MEDIA_PAD_FL_SINK) - *source_mbusformat = format->format; - - mutex_unlock(&csi->lock); + *sink_fmt = format->format; + *source_fmt = *sink_fmt; return 0; } @@ -554,7 +508,7 @@ static const struct v4l2_subdev_video_ops mei_csi_video_ops = { }; static const struct v4l2_subdev_pad_ops mei_csi_pad_ops = { - .get_fmt = mei_csi_get_fmt, + .get_fmt = v4l2_subdev_get_fmt, .set_fmt = mei_csi_set_fmt, }; @@ -611,11 +565,13 @@ static int mei_csi_init_controls(struct mei_csi *csi) u32 max; int ret; + mutex_init(&csi->ctrl_lock); + ret = v4l2_ctrl_handler_init(&csi->ctrl_handler, 2); if (ret) return ret; - csi->ctrl_handler.lock = &csi->lock; + csi->ctrl_handler.lock = &csi->ctrl_lock; max = ARRAY_SIZE(link_freq_menu_items) - 1; csi->freq_ctrl = v4l2_ctrl_new_int_menu(&csi->ctrl_handler, @@ -716,11 +672,26 @@ static int mei_csi_probe(struct mei_cl_device *cldev, const struct mei_cl_device_id *id) { struct device *dev = &cldev->dev; + struct pci_dev *ipu; struct mei_csi *csi; + unsigned int i; int ret; - if (!dev_fwnode(dev)) - return -EPROBE_DEFER; + for (i = 0, ipu = NULL; !ipu && ipu6_pci_tbl[i].vendor; i++) + ipu = pci_get_device(ipu6_pci_tbl[i].vendor, + ipu6_pci_tbl[i].device, NULL); + + if (!ipu) + return -ENODEV; + + ret = ipu_bridge_init(&ipu->dev, ipu_bridge_parse_ssdb); + put_device(&ipu->dev); + if (ret < 0) + return ret; + if (!dev_fwnode(dev)) { + dev_err(dev, "mei-csi probed without device fwnode!\n"); + return -ENXIO; + } csi = devm_kzalloc(dev, sizeof(struct mei_csi), GFP_KERNEL); if (!csi) @@ -749,6 +720,7 @@ static int mei_csi_probe(struct mei_cl_device *cldev, goto err_disable; csi->subdev.dev = &cldev->dev; + csi->subdev.state_lock = &csi->lock; v4l2_subdev_init(&csi->subdev, &mei_csi_subdev_ops); csi->subdev.internal_ops = &mei_csi_internal_ops; v4l2_set_subdevdata(&csi->subdev, csi); @@ -764,9 +736,6 @@ static int mei_csi_probe(struct mei_cl_device *cldev, if (ret) goto err_ctrl_handler; - csi->format_mbus[CSI_PAD_SOURCE] = mei_csi_format_mbus_default; - csi->format_mbus[CSI_PAD_SINK] = mei_csi_format_mbus_default; - csi->pads[CSI_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; csi->pads[CSI_PAD_SINK].flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&csi->subdev.entity, CSI_NUM_PADS, @@ -794,6 +763,7 @@ err_entity: err_ctrl_handler: v4l2_ctrl_handler_free(&csi->ctrl_handler); + mutex_destroy(&csi->ctrl_lock); v4l2_async_nf_unregister(&csi->notifier); v4l2_async_nf_cleanup(&csi->notifier); @@ -813,6 +783,7 @@ static void mei_csi_remove(struct mei_cl_device *cldev) v4l2_async_nf_unregister(&csi->notifier); v4l2_async_nf_cleanup(&csi->notifier); v4l2_ctrl_handler_free(&csi->ctrl_handler); + mutex_destroy(&csi->ctrl_lock); v4l2_async_unregister_subdev(&csi->subdev); v4l2_subdev_cleanup(&csi->subdev); media_entity_cleanup(&csi->subdev.entity); @@ -841,6 +812,7 @@ static struct mei_cl_driver mei_csi_driver = { module_mei_cl_driver(mei_csi_driver); +MODULE_IMPORT_NS(INTEL_IPU_BRIDGE); MODULE_AUTHOR("Wentong Wu <wentong.wu@intel.com>"); MODULE_AUTHOR("Zhifeng Wang <zhifeng.wang@intel.com>"); MODULE_DESCRIPTION("Device driver for IVSC CSI"); |