diff options
| -rw-r--r-- | Documentation/video4linux/vivid.txt | 36 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/Makefile | 4 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-cec.c | 255 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-cec.h | 33 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-core.c | 118 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-core.h | 27 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-kthread-cap.c | 13 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-vid-cap.c | 23 | ||||
| -rw-r--r-- | drivers/media/platform/vivid/vivid-vid-common.c | 7 |
10 files changed, 509 insertions, 15 deletions
diff --git a/Documentation/video4linux/vivid.txt b/Documentation/video4linux/vivid.txt index 8da5d2a576bc..1b26519c6ddc 100644 --- a/Documentation/video4linux/vivid.txt +++ b/Documentation/video4linux/vivid.txt @@ -74,7 +74,8 @@ Section 11: Cropping, Composing, Scaling Section 12: Formats Section 13: Capture Overlay Section 14: Output Overlay -Section 15: Some Future Improvements +Section 15: CEC (Consumer Electronics Control) +Section 16: Some Future Improvements Section 1: Configuring the driver @@ -364,7 +365,11 @@ For HDMI inputs it is possible to set the EDID. By default a simple EDID is provided. You can only set the EDID for HDMI inputs. Internally, however, the EDID is shared between all HDMI inputs. -No interpretation is done of the EDID data. +No interpretation is done of the EDID data with the exception of the +physical address. See the CEC section for more details. + +There is a maximum of 15 HDMI inputs (if there are more, then they will be +reduced to 15) since that's the limitation of the EDID physical address. Section 3: Video Output @@ -409,6 +414,9 @@ standard, and for all others a 1:1 pixel aspect ratio is returned. An HDMI output has a valid EDID which can be obtained through VIDIOC_G_EDID. +There is a maximum of 15 HDMI outputs (if there are more, then they will be +reduced to 15) since that's the limitation of the EDID physical address. See +also the CEC section for more details. Section 4: VBI Capture ---------------------- @@ -1108,7 +1116,26 @@ capabilities will slow down the video loop considerably as a lot of checks have to be done per pixel. -Section 15: Some Future Improvements +Section 15: CEC (Consumer Electronics Control) +---------------------------------------------- + +If there are HDMI inputs then a CEC adapter will be created that has +the same number of input ports. This is the equivalent of e.g. a TV that +has that number of inputs. Each HDMI output will also create a +CEC adapter that is hooked up to the corresponding input port, or (if there +are more outputs than inputs) is not hooked up at all. In other words, +this is the equivalent of hooking up each output device to an input port of +the TV. Any remaining output devices remain unconnected. + +The EDID that each output reads reports a unique CEC physical address that is +based on the physical address of the EDID of the input. So if the EDID of the +receiver has physical address A.B.0.0, then each output will see an EDID +containing physical address A.B.C.0 where C is 1 to the number of inputs. If +there are more outputs than inputs then the remaining outputs have a CEC adapter +that is disabled and reports an invalid physical address. + + +Section 16: Some Future Improvements ------------------------------------ Just as a reminder and in no particular order: @@ -1121,8 +1148,6 @@ Just as a reminder and in no particular order: - Fix sequence/field numbering when looping of video with alternate fields - Add support for V4L2_CID_BG_COLOR for video outputs - Add ARGB888 overlay support: better testing of the alpha channel -- Add custom DV timings support -- Add support for V4L2_DV_FL_REDUCED_FPS - Improve pixel aspect support in the tpg code by passing a real v4l2_fract - Use per-queue locks and/or per-device locks to improve throughput - Add support to loop from a specific output to a specific input across @@ -1133,3 +1158,4 @@ Just as a reminder and in no particular order: - Make a thread for the RDS generation, that would help in particular for the "Controls" RDS Rx I/O Mode as the read-only RDS controls could be updated in real-time. +- Changing the EDID should cause hotplug detect emulation to happen. diff --git a/drivers/media/platform/vivid/Kconfig b/drivers/media/platform/vivid/Kconfig index f535f576913d..8e6918c5c87c 100644 --- a/drivers/media/platform/vivid/Kconfig +++ b/drivers/media/platform/vivid/Kconfig @@ -6,6 +6,7 @@ config VIDEO_VIVID select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select MEDIA_CEC_EDID select VIDEOBUF2_VMALLOC select VIDEO_V4L2_TPG default n @@ -22,6 +23,13 @@ config VIDEO_VIVID Say Y here if you want to test video apps or debug V4L devices. When in doubt, say N. +config VIDEO_VIVID_CEC + bool "Enable CEC emulation support" + depends on VIDEO_VIVID && MEDIA_CEC + ---help--- + When selected the vivid module will emulate the optional + HDMI CEC feature. + config VIDEO_VIVID_MAX_DEVS int "Maximum number of devices" depends on VIDEO_VIVID diff --git a/drivers/media/platform/vivid/Makefile b/drivers/media/platform/vivid/Makefile index 633c8a1b2c27..29738810e3ee 100644 --- a/drivers/media/platform/vivid/Makefile +++ b/drivers/media/platform/vivid/Makefile @@ -3,4 +3,8 @@ vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \ vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \ vivid-rds-gen.o vivid-sdr-cap.o vivid-vbi-cap.o vivid-vbi-out.o \ vivid-osd.o +ifeq ($(CONFIG_VIDEO_VIVID_CEC),y) + vivid-objs += vivid-cec.o +endif + obj-$(CONFIG_VIDEO_VIVID) += vivid.o diff --git a/drivers/media/platform/vivid/vivid-cec.c b/drivers/media/platform/vivid/vivid-cec.c new file mode 100644 index 000000000000..b5714fae905d --- /dev/null +++ b/drivers/media/platform/vivid/vivid-cec.c @@ -0,0 +1,255 @@ +/* + * vivid-cec.c - A Virtual Video Test Driver, cec emulation + * + * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <media/cec.h> + +#include "vivid-core.h" +#include "vivid-cec.h" + +void vivid_cec_bus_free_work(struct vivid_dev *dev) +{ + spin_lock(&dev->cec_slock); + while (!list_empty(&dev->cec_work_list)) { + struct vivid_cec_work *cw = + list_first_entry(&dev->cec_work_list, + struct vivid_cec_work, list); + + spin_unlock(&dev->cec_slock); + cancel_delayed_work_sync(&cw->work); + spin_lock(&dev->cec_slock); + list_del(&cw->list); + cec_transmit_done(cw->adap, CEC_TX_STATUS_LOW_DRIVE, 0, 0, 1, 0); + kfree(cw); + } + spin_unlock(&dev->cec_slock); +} + +static struct cec_adapter *vivid_cec_find_dest_adap(struct vivid_dev *dev, + struct cec_adapter *adap, + u8 dest) +{ + unsigned int i; + + if (dest >= 0xf) + return NULL; + + if (adap != dev->cec_rx_adap && dev->cec_rx_adap && + dev->cec_rx_adap->is_configured && + cec_has_log_addr(dev->cec_rx_adap, dest)) + return dev->cec_rx_adap; + + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) { + if (adap == dev->cec_tx_adap[i]) + continue; + if (!dev->cec_tx_adap[i]->is_configured) + continue; + if (cec_has_log_addr(dev->cec_tx_adap[i], dest)) + return dev->cec_tx_adap[i]; + } + return NULL; +} + +static void vivid_cec_xfer_done_worker(struct work_struct *work) +{ + struct vivid_cec_work *cw = + container_of(work, struct vivid_cec_work, work.work); + struct vivid_dev *dev = cw->dev; + struct cec_adapter *adap = cw->adap; + bool is_poll = cw->msg.len == 1; + u8 dest = cec_msg_destination(&cw->msg); + struct cec_adapter *dest_adap = NULL; + bool valid_dest; + unsigned int i; + + valid_dest = cec_msg_is_broadcast(&cw->msg); + if (!valid_dest) { + dest_adap = vivid_cec_find_dest_adap(dev, adap, dest); + if (dest_adap) + valid_dest = true; + } + cw->tx_status = valid_dest ? CEC_TX_STATUS_OK : CEC_TX_STATUS_NACK; + spin_lock(&dev->cec_slock); + dev->cec_xfer_time_jiffies = 0; + dev->cec_xfer_start_jiffies = 0; + list_del(&cw->list); + spin_unlock(&dev->cec_slock); + cec_transmit_done(cw->adap, cw->tx_status, 0, valid_dest ? 0 : 1, 0, 0); + + if (!is_poll && dest_adap) { + /* Directed message */ + cec_received_msg(dest_adap, &cw->msg); + } else if (!is_poll && valid_dest) { + /* Broadcast message */ + if (adap != dev->cec_rx_adap && + dev->cec_rx_adap->log_addrs.log_addr_mask) + cec_received_msg(dev->cec_rx_adap, &cw->msg); + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) { + if (adap == dev->cec_tx_adap[i] || + !dev->cec_tx_adap[i]->log_addrs.log_addr_mask) + continue; + cec_received_msg(dev->cec_tx_adap[i], &cw->msg); + } + } + kfree(cw); +} + +static void vivid_cec_xfer_try_worker(struct work_struct *work) +{ + struct vivid_cec_work *cw = + container_of(work, struct vivid_cec_work, work.work); + struct vivid_dev *dev = cw->dev; + + spin_lock(&dev->cec_slock); + if (dev->cec_xfer_time_jiffies) { + list_del(&cw->list); + spin_unlock(&dev->cec_slock); + cec_transmit_done(cw->adap, CEC_TX_STATUS_ARB_LOST, 1, 0, 0, 0); + kfree(cw); + } else { + INIT_DELAYED_WORK(&cw->work, vivid_cec_xfer_done_worker); + dev->cec_xfer_start_jiffies = jiffies; + dev->cec_xfer_time_jiffies = usecs_to_jiffies(cw->usecs); + spin_unlock(&dev->cec_slock); + schedule_delayed_work(&cw->work, dev->cec_xfer_time_jiffies); + } +} + +static int vivid_cec_adap_enable(struct cec_adapter *adap, bool enable) +{ + return 0; +} + +static int vivid_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr) +{ + return 0; +} + +/* + * One data bit takes 2400 us, each byte needs 10 bits so that's 24000 us + * per byte. + */ +#define USECS_PER_BYTE 24000 + +static int vivid_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, + u32 signal_free_time, struct cec_msg *msg) +{ + struct vivid_dev *dev = adap->priv; + struct vivid_cec_work *cw = kzalloc(sizeof(*cw), GFP_KERNEL); + long delta_jiffies = 0; + + if (cw == NULL) + return -ENOMEM; + cw->dev = dev; + cw->adap = adap; + cw->usecs = CEC_FREE_TIME_TO_USEC(signal_free_time) + + msg->len * USECS_PER_BYTE; + cw->msg = *msg; + + spin_lock(&dev->cec_slock); + list_add(&cw->list, &dev->cec_work_list); + if (dev->cec_xfer_time_jiffies == 0) { + INIT_DELAYED_WORK(&cw->work, vivid_cec_xfer_done_worker); + dev->cec_xfer_start_jiffies = jiffies; + dev->cec_xfer_time_jiffies = usecs_to_jiffies(cw->usecs); + delta_jiffies = dev->cec_xfer_time_jiffies; + } else { + INIT_DELAYED_WORK(&cw->work, vivid_cec_xfer_try_worker); + delta_jiffies = dev->cec_xfer_start_jiffies + + dev->cec_xfer_time_jiffies - jiffies; + } + spin_unlock(&dev->cec_slock); + schedule_delayed_work(&cw->work, delta_jiffies < 0 ? 0 : delta_jiffies); + return 0; +} + +static int vivid_received(struct cec_adapter *adap, struct cec_msg *msg) +{ + struct vivid_dev *dev = adap->priv; + struct cec_msg reply; + u8 dest = cec_msg_destination(msg); + u16 pa; + u8 disp_ctl; + char osd[14]; + + if (cec_msg_is_broadcast(msg)) + dest = adap->log_addrs.log_addr[0]; + cec_msg_init(&reply, dest, cec_msg_initiator(msg)); + + switch (cec_msg_opcode(msg)) { + case CEC_MSG_SET_STREAM_PATH: + if (cec_is_sink(adap)) + return -ENOMSG; + cec_ops_set_stream_path(msg, &pa); + if (pa != adap->phys_addr) + return -ENOMSG; + cec_msg_active_source(&reply, adap->phys_addr); + cec_transmit_msg(adap, &reply, false); + break; + case CEC_MSG_SET_OSD_STRING: + if (!cec_is_sink(adap)) + return -ENOMSG; + cec_ops_set_osd_string(msg, &disp_ctl, osd); + switch (disp_ctl) { + case CEC_OP_DISP_CTL_DEFAULT: + strcpy(dev->osd, osd); + dev->osd_jiffies = jiffies; + break; + case CEC_OP_DISP_CTL_UNTIL_CLEARED: + strcpy(dev->osd, osd); + dev->osd_jiffies = 0; + break; + case CEC_OP_DISP_CTL_CLEAR: + dev->osd[0] = 0; + dev->osd_jiffies = 0; + break; + default: + cec_msg_feature_abort(&reply, cec_msg_opcode(msg), + CEC_OP_ABORT_INVALID_OP); + cec_transmit_msg(adap, &reply, false); + break; + } + break; + default: + return -ENOMSG; + } + return 0; +} + +static const struct cec_adap_ops vivid_cec_adap_ops = { + .adap_enable = vivid_cec_adap_enable, + .adap_log_addr = vivid_cec_adap_log_addr, + .adap_transmit = vivid_cec_adap_transmit, + .received = vivid_received, +}; + +struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev, + unsigned int idx, + struct device *parent, + bool is_source) +{ + char name[sizeof(dev->vid_out_dev.name) + 2]; + u32 caps = CEC_CAP_TRANSMIT | CEC_CAP_LOG_ADDRS | + CEC_CAP_PASSTHROUGH | CEC_CAP_RC; + + snprintf(name, sizeof(name), "%s%d", + is_source ? dev->vid_out_dev.name : dev->vid_cap_dev.name, + idx); + return cec_allocate_adapter(&vivid_cec_adap_ops, dev, + name, caps, 1, parent); +} diff --git a/drivers/media/platform/vivid/vivid-cec.h b/drivers/media/platform/vivid/vivid-cec.h new file mode 100644 index 000000000000..97892afa6b3b --- /dev/null +++ b/drivers/media/platform/vivid/vivid-cec.h @@ -0,0 +1,33 @@ +/* + * vivid-cec.h - A Virtual Video Test Driver, cec emulation + * + * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifdef CONFIG_VIDEO_VIVID_CEC +struct cec_adapter *vivid_cec_alloc_adap(struct vivid_dev *dev, + unsigned int idx, + struct device *parent, + bool is_source); +void vivid_cec_bus_free_work(struct vivid_dev *dev); + +#else + +static inline void vivid_cec_bus_free_work(struct vivid_dev *dev) +{ +} + +#endif diff --git a/drivers/media/platform/vivid/vivid-core.c b/drivers/media/platform/vivid/vivid-core.c index c14da84af09b..9966828bb578 100644 --- a/drivers/media/platform/vivid/vivid-core.c +++ b/drivers/media/platform/vivid/vivid-core.c @@ -46,6 +46,7 @@ #include "vivid-vbi-cap.h" #include "vivid-vbi-out.h" #include "vivid-osd.h" +#include "vivid-cec.h" #include "vivid-ctrls.h" #define VIVID_MODULE_NAME "vivid" @@ -684,6 +685,11 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) dev->input_name_counter[i] = in_type_counter[dev->input_type[i]]++; } dev->has_audio_inputs = in_type_counter[TV] && in_type_counter[SVID]; + if (in_type_counter[HDMI] == 16) { + /* The CEC physical address only allows for max 15 inputs */ + in_type_counter[HDMI]--; + dev->num_inputs--; + } /* how many outputs do we have and of what type? */ dev->num_outputs = num_outputs[inst]; @@ -696,6 +702,15 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) dev->output_name_counter[i] = out_type_counter[dev->output_type[i]]++; } dev->has_audio_outputs = out_type_counter[SVID]; + if (out_type_counter[HDMI] == 16) { + /* + * The CEC physical address only allows for max 15 inputs, + * so outputs are also limited to 15 to allow for easy + * CEC output to input mapping. + */ + out_type_counter[HDMI]--; + dev->num_outputs--; + } /* do we create a video capture device? */ dev->has_vid_cap = node_type & 0x0001; @@ -1010,6 +1025,17 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) INIT_LIST_HEAD(&dev->vbi_out_active); INIT_LIST_HEAD(&dev->sdr_cap_active); + INIT_LIST_HEAD(&dev->cec_work_list); + spin_lock_init(&dev->cec_slock); + /* + * Same as create_singlethread_workqueue, but now I can use the + * string formatting of alloc_ordered_workqueue. + */ + dev->cec_workqueue = + alloc_ordered_workqueue("vivid-%03d-cec", WQ_MEM_RECLAIM, inst); + if (!dev->cec_workqueue) + goto unreg_dev; + /* start creating the vb2 queues */ if (dev->has_vid_cap) { /* initialize vid_cap queue */ @@ -1117,7 +1143,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) /* finally start creating the device nodes */ if (dev->has_vid_cap) { vfd = &dev->vid_cap_dev; - strlcpy(vfd->name, "vivid-vid-cap", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vid-cap", inst); vfd->fops = &vivid_fops; vfd->ioctl_ops = &vivid_ioctl_ops; vfd->device_caps = dev->vid_cap_caps; @@ -1133,6 +1160,27 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) vfd->lock = &dev->mutex; video_set_drvdata(vfd, dev); +#ifdef CONFIG_VIDEO_VIVID_CEC + if (in_type_counter[HDMI]) { + struct cec_adapter *adap; + + adap = vivid_cec_alloc_adap(dev, 0, &pdev->dev, false); + ret = PTR_ERR_OR_ZERO(adap); + if (ret < 0) + goto unreg_dev; + dev->cec_rx_adap = adap; + ret = cec_register_adapter(adap); + if (ret < 0) { + cec_delete_adapter(adap); + dev->cec_rx_adap = NULL; + goto unreg_dev; + } + cec_s_phys_addr(adap, 0, false); + v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI input %d\n", + dev_name(&adap->devnode.dev), i); + } +#endif + ret = video_register_device(vfd, VFL_TYPE_GRABBER, vid_cap_nr[inst]); if (ret < 0) goto unreg_dev; @@ -1141,8 +1189,13 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) } if (dev->has_vid_out) { +#ifdef CONFIG_VIDEO_VIVID_CEC + unsigned int bus_cnt = 0; +#endif + vfd = &dev->vid_out_dev; - strlcpy(vfd->name, "vivid-vid-out", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vid-out", inst); vfd->vfl_dir = VFL_DIR_TX; vfd->fops = &vivid_fops; vfd->ioctl_ops = &vivid_ioctl_ops; @@ -1159,6 +1212,35 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) vfd->lock = &dev->mutex; video_set_drvdata(vfd, dev); +#ifdef CONFIG_VIDEO_VIVID_CEC + for (i = 0; i < dev->num_outputs; i++) { + struct cec_adapter *adap; + + if (dev->output_type[i] != HDMI) + continue; + dev->cec_output2bus_map[i] = bus_cnt; + adap = vivid_cec_alloc_adap(dev, bus_cnt, + &pdev->dev, true); + ret = PTR_ERR_OR_ZERO(adap); + if (ret < 0) + goto unreg_dev; + dev->cec_tx_adap[bus_cnt] = adap; + ret = cec_register_adapter(adap); + if (ret < 0) { + cec_delete_adapter(adap); + dev->cec_tx_adap[bus_cnt] = NULL; + goto unreg_dev; + } + bus_cnt++; + if (bus_cnt <= in_type_counter[HDMI]) + cec_s_phys_addr(adap, bus_cnt << 12, false); + else + cec_s_phys_addr(adap, 0x1000, false); + v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI output %d\n", + dev_name(&adap->devnode.dev), i); + } +#endif + ret = video_register_device(vfd, VFL_TYPE_GRABBER, vid_out_nr[inst]); if (ret < 0) goto unreg_dev; @@ -1168,7 +1250,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_vbi_cap) { vfd = &dev->vbi_cap_dev; - strlcpy(vfd->name, "vivid-vbi-cap", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vbi-cap", inst); vfd->fops = &vivid_fops; vfd->ioctl_ops = &vivid_ioctl_ops; vfd->device_caps = dev->vbi_cap_caps; @@ -1191,7 +1274,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_vbi_out) { vfd = &dev->vbi_out_dev; - strlcpy(vfd->name, "vivid-vbi-out", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-vbi-out", inst); vfd->vfl_dir = VFL_DIR_TX; vfd->fops = &vivid_fops; vfd->ioctl_ops = &vivid_ioctl_ops; @@ -1215,7 +1299,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_sdr_cap) { vfd = &dev->sdr_cap_dev; - strlcpy(vfd->name, "vivid-sdr-cap", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-sdr-cap", inst); vfd->fops = &vivid_fops; vfd->ioctl_ops = &vivid_ioctl_ops; vfd->device_caps = dev->sdr_cap_caps; @@ -1234,7 +1319,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_radio_rx) { vfd = &dev->radio_rx_dev; - strlcpy(vfd->name, "vivid-rad-rx", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-rad-rx", inst); vfd->fops = &vivid_radio_fops; vfd->ioctl_ops = &vivid_ioctl_ops; vfd->device_caps = dev->radio_rx_caps; @@ -1252,7 +1338,8 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_radio_tx) { vfd = &dev->radio_tx_dev; - strlcpy(vfd->name, "vivid-rad-tx", sizeof(vfd->name)); + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-rad-tx", inst); vfd->vfl_dir = VFL_DIR_TX; vfd->fops = &vivid_radio_fops; vfd->ioctl_ops = &vivid_ioctl_ops; @@ -1282,6 +1369,13 @@ unreg_dev: video_unregister_device(&dev->vbi_cap_dev); video_unregister_device(&dev->vid_out_dev); video_unregister_device(&dev->vid_cap_dev); + cec_unregister_adapter(dev->cec_rx_adap); + for (i = 0; i < MAX_OUTPUTS; i++) + cec_unregister_adapter(dev->cec_tx_adap[i]); + if (dev->cec_workqueue) { + vivid_cec_bus_free_work(dev); + destroy_workqueue(dev->cec_workqueue); + } free_dev: v4l2_device_put(&dev->v4l2_dev); return ret; @@ -1331,8 +1425,7 @@ static int vivid_probe(struct platform_device *pdev) static int vivid_remove(struct platform_device *pdev) { struct vivid_dev *dev; - unsigned i; - + unsigned int i, j; for (i = 0; i < n_devs; i++) { dev = vivid_devs[i]; @@ -1380,6 +1473,13 @@ static int vivid_remove(struct platform_device *pdev) unregister_framebuffer(&dev->fb_info); vivid_fb_release_buffers(dev); } + cec_unregister_adapter(dev->cec_rx_adap); + for (j = 0; j < MAX_OUTPUTS; j++) + cec_unregister_adapter(dev->cec_tx_adap[j]); + if (dev->cec_workqueue) { + vivid_cec_bus_free_work(dev); + destroy_workqueue(dev->cec_workqueue); + } v4l2_device_put(&dev->v4l2_dev); vivid_devs[i] = NULL; } diff --git a/drivers/media/platform/vivid/vivid-core.h b/drivers/media/platform/vivid/vivid-core.h index 776783bec227..a7daa40d0a49 100644 --- a/drivers/media/platform/vivid/vivid-core.h +++ b/drivers/media/platform/vivid/vivid-core.h @@ -21,6 +21,8 @@ #define _VIVID_CORE_H_ #include <linux/fb.h> +#include <linux/workqueue.h> +#include <media/cec.h> #include <media/videobuf2-v4l2.h> #include <media/v4l2-device.h> #include <media/v4l2-dev.h> @@ -132,6 +134,17 @@ enum vivid_colorspace { #define VIVID_INVALID_SIGNAL(mode) \ ((mode) == NO_SIGNAL || (mode) == NO_LOCK || (mode) == OUT_OF_RANGE) +struct vivid_cec_work { + struct list_head list; + struct delayed_work work; + struct cec_adapter *adap; + struct vivid_dev *dev; + unsigned int usecs; + unsigned int timeout_ms; + u8 tx_status; + struct cec_msg msg; +}; + struct vivid_dev { unsigned inst; struct v4l2_device v4l2_dev; @@ -497,6 +510,20 @@ struct vivid_dev { /* Shared between radio receiver and transmitter */ bool radio_rds_loop; struct timespec radio_rds_init_ts; + + /* CEC */ + struct cec_adapter *cec_rx_adap; + struct cec_adapter *cec_tx_adap[MAX_OUTPUTS]; + struct workqueue_struct *cec_workqueue; + spinlock_t cec_slock; + struct list_head cec_work_list; + unsigned int cec_xfer_time_jiffies; + unsigned long cec_xfer_start_jiffies; + u8 cec_output2bus_map[MAX_OUTPUTS]; + + /* CEC OSD String */ + char osd[14]; + unsigned long osd_jiffies; }; static inline bool vivid_is_webcam(const struct vivid_dev *dev) diff --git a/drivers/media/platform/vivid/vivid-kthread-cap.c b/drivers/media/platform/vivid/vivid-kthread-cap.c index 3b8c10108dfa..6ca71aabb576 100644 --- a/drivers/media/platform/vivid/vivid-kthread-cap.c +++ b/drivers/media/platform/vivid/vivid-kthread-cap.c @@ -552,6 +552,19 @@ static void vivid_fillbuff(struct vivid_dev *dev, struct vivid_buffer *buf) snprintf(str, sizeof(str), " button pressed!"); tpg_gen_text(tpg, basep, line++ * line_height, 16, str); } + if (dev->osd[0]) { + if (vivid_is_hdmi_cap(dev)) { + snprintf(str, sizeof(str), + " OSD \"%s\"", dev->osd); + tpg_gen_text(tpg, basep, line++ * line_height, + 16, str); + } + if (dev->osd_jiffies && + time_is_before_jiffies(dev->osd_jiffies + 5 * HZ)) { + dev->osd[0] = 0; + dev->osd_jiffies = 0; + } + } } /* diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index 4f730f355a17..16fcac1b560f 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -1701,6 +1701,9 @@ int vidioc_s_edid(struct file *file, void *_fh, struct v4l2_edid *edid) { struct vivid_dev *dev = video_drvdata(file); + u16 phys_addr; + unsigned int i; + int ret; memset(edid->reserved, 0, sizeof(edid->reserved)); if (edid->pad >= dev->num_inputs) @@ -1709,14 +1712,32 @@ int vidioc_s_edid(struct file *file, void *_fh, return -EINVAL; if (edid->blocks == 0) { dev->edid_blocks = 0; - return 0; + phys_addr = CEC_PHYS_ADDR_INVALID; + goto set_phys_addr; } if (edid->blocks > dev->edid_max_blocks) { edid->blocks = dev->edid_max_blocks; return -E2BIG; } + phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL); + ret = cec_phys_addr_validate(phys_addr, &phys_addr, NULL); + if (ret) + return ret; + + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; + dev->edid_blocks = edid->blocks; memcpy(dev->edid, edid->edid, edid->blocks * 128); + +set_phys_addr: + /* TODO: a proper hotplug detect cycle should be emulated here */ + cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false); + + for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) + cec_s_phys_addr(dev->cec_tx_adap[i], + cec_phys_addr_for_input(phys_addr, i + 1), + false); return 0; } diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c index 39ea2284789c..fcda3ae4e6b0 100644 --- a/drivers/media/platform/vivid/vivid-vid-common.c +++ b/drivers/media/platform/vivid/vivid-vid-common.c @@ -811,6 +811,7 @@ int vidioc_g_edid(struct file *file, void *_fh, { struct vivid_dev *dev = video_drvdata(file); struct video_device *vdev = video_devdata(file); + struct cec_adapter *adap; memset(edid->reserved, 0, sizeof(edid->reserved)); if (vdev->vfl_dir == VFL_DIR_RX) { @@ -818,11 +819,16 @@ int vidioc_g_edid(struct file *file, void *_fh, return -EINVAL; if (dev->input_type[edid->pad] != HDMI) return -EINVAL; + adap = dev->cec_rx_adap; } else { + unsigned int bus_idx; + if (edid->pad >= dev->num_outputs) return -EINVAL; if (dev->output_type[edid->pad] != HDMI) return -EINVAL; + bus_idx = dev->cec_output2bus_map[edid->pad]; + adap = dev->cec_tx_adap[bus_idx]; } if (edid->start_block == 0 && edid->blocks == 0) { edid->blocks = dev->edid_blocks; @@ -835,5 +841,6 @@ int vidioc_g_edid(struct file *file, void *_fh, if (edid->start_block + edid->blocks > dev->edid_blocks) edid->blocks = dev->edid_blocks - edid->start_block; memcpy(edid->edid, dev->edid, edid->blocks * 128); + cec_set_edid_phys_addr(edid->edid, edid->blocks * 128, adap->phys_addr); return 0; } |