From patchwork Fri Nov 15 13:23:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vandana BN X-Patchwork-Id: 11246367 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 498F113BD for ; Fri, 15 Nov 2019 13:23:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 100982073B for ; Fri, 15 Nov 2019 13:23:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FBitSBic" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727355AbfKONXj (ORCPT ); Fri, 15 Nov 2019 08:23:39 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:41744 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727223AbfKONXj (ORCPT ); Fri, 15 Nov 2019 08:23:39 -0500 Received: by mail-pf1-f194.google.com with SMTP id p26so6671590pfq.8 for ; Fri, 15 Nov 2019 05:23:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/GR7Jvw7wRaoFp/lq5AUsomNGO7s6OjqjJJC1ap02IM=; b=FBitSBicxl9TlUXJFjNkHL3ermI6vI0Ac9mRI0jWE9MCMYxn4yJ2VdQkAwgpH+CLH3 ki+LvyWiJUEkCrbWWRB9mVYx15yzvsTv5RfyvN4omS9HMMRC/Vv/j1+T6F0N04ghJ1lA we97+PQxKPOWNplM5ZZ5KZGm7ZFQKxZe6pU5pT6Cn7k6v+m4wUb01dZ2XS9hV/Ip6jT2 PvLIjMA/p17nK1WNXHQ9f4aj+qKkjkGct/LqHSYxRWCMqBR78S0ihZgigDdnI9r8O0Iw wmroTv3zp27ge9ML7rn7dhoG87mw1dO3aFJH0s/yVjAyWx5cxdQZ55O4MDsGpFjYTs2C T3cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=/GR7Jvw7wRaoFp/lq5AUsomNGO7s6OjqjJJC1ap02IM=; b=L8TDayPVy/2F2+snwYXGerJY7PeM1Nw9kZwti0Brp9AsdQX0gTMA8wHSW37QSSmi9f w48gQPxNCBIb95SDT6QbPIKteoAfGYjqQO009yAZWcdNdz+5NdqZfbY8wBNFf8npL/PA FG23mOJCzuA9MHXfPdVTi8bD8EZQ3lkX79dTFgGImq7+8N9PRoSlHP94sH4U4ojTQ1xy AcKiXfUPI8NT4ls95jpw1H8Yw6THdTsyN4qtaZLwwxff/8/0iAYWAkKQxRAW33q4Ft5C j59D0fYGAaxbXZf5grbLsB5dJLE4KFyy9iDEhNnIe8U8oQHqzNotgP8sWrOec0d6ZhEH yamA== X-Gm-Message-State: APjAAAV41NwhbY7P3g9I0SPLBkvn+fu0o0WQLUkb64xCQBdr84EK1Ad6 W1VFrBYy3nSvkkbvEBSk8zT/746EerI= X-Google-Smtp-Source: APXvYqzj+XCbJRMa+iLiYO3R0Zl1d/T3IZBWgpthRVt4dca55hGVT7+hOAcshOtnmbPRcNtK15G71g== X-Received: by 2002:a62:7dce:: with SMTP id y197mr17406152pfc.164.1573824216368; Fri, 15 Nov 2019 05:23:36 -0800 (PST) Received: from bnva-HP-Pavilion-g6-Notebook-PC.domain.name ([117.241.201.122]) by smtp.gmail.com with ESMTPSA id k32sm10371940pje.10.2019.11.15.05.23.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2019 05:23:35 -0800 (PST) From: Vandana BN To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, Vandana BN Subject: [PATCH v6] vivid: Add touch support Date: Fri, 15 Nov 2019 18:53:28 +0530 Message-Id: <20191115132328.18808-1-bnvandana@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Support to emulate touch devices in vivid driver. Signed-off-by: Vandana BN --- drivers/media/platform/vivid/Makefile | 3 +- drivers/media/platform/vivid/vivid-core.c | 187 ++++++++- drivers/media/platform/vivid/vivid-core.h | 23 ++ drivers/media/platform/vivid/vivid-ctrls.c | 11 + .../platform/vivid/vivid-kthread-touch.c | 187 +++++++++ .../platform/vivid/vivid-kthread-touch.h | 13 + .../media/platform/vivid/vivid-touch-cap.c | 360 ++++++++++++++++++ .../media/platform/vivid/vivid-touch-cap.h | 39 ++ 8 files changed, 808 insertions(+), 15 deletions(-) create mode 100644 drivers/media/platform/vivid/vivid-kthread-touch.c create mode 100644 drivers/media/platform/vivid/vivid-kthread-touch.h create mode 100644 drivers/media/platform/vivid/vivid-touch-cap.c create mode 100644 drivers/media/platform/vivid/vivid-touch-cap.h diff --git a/drivers/media/platform/vivid/Makefile b/drivers/media/platform/vivid/Makefile index e8a50c506dc9..b12ad0152a3e 100644 --- a/drivers/media/platform/vivid/Makefile +++ b/drivers/media/platform/vivid/Makefile @@ -3,7 +3,8 @@ vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \ vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.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 vivid-meta-cap.o vivid-meta-out.o + vivid-osd.o vivid-meta-cap.o vivid-meta-out.o \ + vivid-kthread-touch.o vivid-touch-cap.o ifeq ($(CONFIG_VIDEO_VIVID_CEC),y) vivid-objs += vivid-cec.o endif diff --git a/drivers/media/platform/vivid/vivid-core.c b/drivers/media/platform/vivid/vivid-core.c index c184f9b0be69..656661bae04e 100644 --- a/drivers/media/platform/vivid/vivid-core.c +++ b/drivers/media/platform/vivid/vivid-core.c @@ -39,6 +39,7 @@ #include "vivid-ctrls.h" #include "vivid-meta-cap.h" #include "vivid-meta-out.h" +#include "vivid-touch-cap.h" #define VIVID_MODULE_NAME "vivid" @@ -89,6 +90,10 @@ static int meta_out_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; module_param_array(meta_out_nr, int, NULL, 0444); MODULE_PARM_DESC(meta_out_nr, " videoX start number, -1 is autodetect"); +static int touch_cap_nr[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; +module_param_array(touch_cap_nr, int, NULL, 0444); +MODULE_PARM_DESC(touch_cap_nr, " v4l-touchX start number, -1 is autodetect"); + static int ccs_cap_mode[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = -1 }; module_param_array(ccs_cap_mode, int, NULL, 0444); MODULE_PARM_DESC(ccs_cap_mode, " capture crop/compose/scale mode:\n" @@ -110,10 +115,10 @@ MODULE_PARM_DESC(multiplanar, " 1 (default) creates a single planar device, 2 cr * vbi-out + vid-out + meta-cap */ static unsigned int node_types[VIVID_MAX_DEVS] = { - [0 ... (VIVID_MAX_DEVS - 1)] = 0x61d3d + [0 ... (VIVID_MAX_DEVS - 1)] = 0xe1d3d }; module_param_array(node_types, uint, NULL, 0444); -MODULE_PARM_DESC(node_types, " node types, default is 0x61d3d. Bitmask with the following meaning:\n" +MODULE_PARM_DESC(node_types, " node types, default is 0xe1d3d. Bitmask with the following meaning:\n" "\t\t bit 0: Video Capture node\n" "\t\t bit 2-3: VBI Capture node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n" "\t\t bit 4: Radio Receiver node\n" @@ -123,7 +128,8 @@ MODULE_PARM_DESC(node_types, " node types, default is 0x61d3d. Bitmask with the "\t\t bit 12: Radio Transmitter node\n" "\t\t bit 16: Framebuffer for testing overlays\n" "\t\t bit 17: Metadata Capture node\n" - "\t\t bit 18: Metadata Output node\n"); + "\t\t bit 18: Metadata Output node\n" + "\t\t bit 19: Touch Capture node\n"); /* Default: 4 inputs */ static unsigned num_inputs[VIVID_MAX_DEVS] = { [0 ... (VIVID_MAX_DEVS - 1)] = 4 }; @@ -223,7 +229,8 @@ static int vidioc_querycap(struct file *file, void *priv, dev->vbi_cap_caps | dev->vbi_out_caps | dev->radio_rx_caps | dev->radio_tx_caps | dev->sdr_cap_caps | dev->meta_cap_caps | - dev->meta_out_caps | V4L2_CAP_DEVICE_CAPS; + dev->meta_out_caps | dev->touch_cap_caps | + V4L2_CAP_DEVICE_CAPS; return 0; } @@ -377,6 +384,8 @@ static int vidioc_g_parm(struct file *file, void *fh, { struct video_device *vdev = video_devdata(file); + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_parm_tch(file, fh, parm); if (vdev->vfl_dir == VFL_DIR_RX) return vivid_vid_cap_g_parm(file, fh, parm); return vivid_vid_out_g_parm(file, fh, parm); @@ -387,6 +396,8 @@ static int vidioc_s_parm(struct file *file, void *fh, { struct video_device *vdev = video_devdata(file); + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_parm_tch(file, fh, parm); if (vdev->vfl_dir == VFL_DIR_RX) return vivid_vid_cap_s_parm(file, fh, parm); return -ENOTTY; @@ -432,6 +443,94 @@ static __poll_t vivid_radio_poll(struct file *file, struct poll_table_struct *wa return vivid_radio_tx_poll(file, wait); } +static int vivid_enum_input(struct file *file, void *priv, + struct v4l2_input *inp) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_input_tch(file, priv, inp); + return vidioc_enum_input(file, priv, inp); +} + +static int vivid_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_input_tch(file, priv, i); + return vidioc_g_input(file, priv, i); +} + +static int vivid_s_input(struct file *file, void *priv, unsigned int i) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_s_input_tch(file, priv, i); + return vidioc_s_input(file, priv, i); +} + +static int vivid_enum_fmt_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_fmt_tch(file, priv, f); + return vivid_enum_fmt_vid(file, priv, f); +} + +static int vivid_g_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_g_fmt_vid_cap(file, priv, f); +} + +static int vivid_try_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_try_fmt_vid_cap(file, priv, f); +} + +static int vivid_s_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_g_fmt_tch(file, priv, f); + return vidioc_s_fmt_vid_cap(file, priv, f); +} + +static int vivid_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_framesizes_tch(file, fh, fsize); + return vidioc_enum_framesizes(file, fh, fsize); +} + +static int vivid_enum_frameintervals(struct file *file, void *priv, + struct v4l2_frmivalenum *fival) +{ + struct video_device *vdev = video_devdata(file); + + if (vdev->vfl_type == VFL_TYPE_TOUCH) + return vivid_enum_frameintervals_tch(file, priv, fival); + return vidioc_enum_frameintervals(file, priv, fival); +} + static bool vivid_is_in_use(struct video_device *vdev) { unsigned long flags; @@ -453,7 +552,8 @@ static bool vivid_is_last_user(struct vivid_dev *dev) vivid_is_in_use(&dev->radio_rx_dev) + vivid_is_in_use(&dev->radio_tx_dev) + vivid_is_in_use(&dev->meta_cap_dev) + - vivid_is_in_use(&dev->meta_out_dev); + vivid_is_in_use(&dev->meta_out_dev) + + vivid_is_in_use(&dev->touch_cap_dev); return uses == 1; } @@ -481,6 +581,7 @@ static int vivid_fop_release(struct file *file) set_bit(V4L2_FL_REGISTERED, &dev->radio_tx_dev.flags); set_bit(V4L2_FL_REGISTERED, &dev->meta_cap_dev.flags); set_bit(V4L2_FL_REGISTERED, &dev->meta_out_dev.flags); + set_bit(V4L2_FL_REGISTERED, &dev->touch_cap_dev.flags); } mutex_unlock(&dev->mutex); if (file->private_data == dev->overlay_cap_owner) @@ -522,10 +623,10 @@ static const struct v4l2_file_operations vivid_radio_fops = { static const struct v4l2_ioctl_ops vivid_ioctl_ops = { .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_vid_cap = vivid_enum_fmt_vid, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + .vidioc_enum_fmt_vid_cap = vivid_enum_fmt_cap, + .vidioc_g_fmt_vid_cap = vivid_g_fmt_cap, + .vidioc_try_fmt_vid_cap = vivid_try_fmt_cap, + .vidioc_s_fmt_vid_cap = vivid_s_fmt_cap, .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap_mplane, .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap_mplane, .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap_mplane, @@ -565,8 +666,8 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = { .vidioc_s_fmt_sdr_cap = vidioc_s_fmt_sdr_cap, .vidioc_overlay = vidioc_overlay, - .vidioc_enum_framesizes = vidioc_enum_framesizes, - .vidioc_enum_frameintervals = vidioc_enum_frameintervals, + .vidioc_enum_framesizes = vivid_enum_framesizes, + .vidioc_enum_frameintervals = vivid_enum_frameintervals, .vidioc_g_parm = vidioc_g_parm, .vidioc_s_parm = vidioc_s_parm, @@ -590,9 +691,9 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = { .vidioc_streamon = vb2_ioctl_streamon, .vidioc_streamoff = vb2_ioctl_streamoff, - .vidioc_enum_input = vidioc_enum_input, - .vidioc_g_input = vidioc_g_input, - .vidioc_s_input = vidioc_s_input, + .vidioc_enum_input = vivid_enum_input, + .vidioc_g_input = vivid_g_input, + .vidioc_s_input = vivid_s_input, .vidioc_s_audio = vidioc_s_audio, .vidioc_g_audio = vidioc_g_audio, .vidioc_enumaudio = vidioc_enumaudio, @@ -921,6 +1022,9 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) dev->has_scaler_out ? 'Y' : 'N'); } + /* do we create a touch capture device */ + dev->has_touch_cap = node_type & 0x80000; + /* end detecting feature set */ if (dev->has_vid_cap) { @@ -994,6 +1098,10 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) if (dev->has_audio_outputs) dev->meta_out_caps |= V4L2_CAP_AUDIO; } + /* set up the capabilities of the touch capture device */ + if (dev->has_touch_cap) + dev->touch_cap_caps = V4L2_CAP_TOUCH | V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; ret = -ENOMEM; /* initialize the test pattern generator */ @@ -1201,6 +1309,11 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) dev->fb_cap.fmt.bytesperline = dev->src_rect.width * tpg_g_twopixelsize(&dev->tpg, 0) / 2; dev->fb_cap.fmt.sizeimage = dev->src_rect.height * dev->fb_cap.fmt.bytesperline; + /* update touch configuration */ + dev->timeperframe_tch_cap.numerator = 20; + dev->timeperframe_tch_cap.denominator = 10; + vivid_set_touch(dev, 0); + /* initialize locks */ spin_lock_init(&dev->slock); mutex_init(&dev->mutex); @@ -1213,6 +1326,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) INIT_LIST_HEAD(&dev->sdr_cap_active); INIT_LIST_HEAD(&dev->meta_cap_active); INIT_LIST_HEAD(&dev->meta_out_active); + INIT_LIST_HEAD(&dev->touch_cap_active); INIT_LIST_HEAD(&dev->cec_work_list); spin_lock_init(&dev->cec_slock); @@ -1294,6 +1408,15 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) goto unreg_dev; } + if (dev->has_touch_cap) { + /* initialize touch_cap queue */ + ret = vivid_create_queue(dev, &dev->vb_touch_cap_q, + V4L2_BUF_TYPE_VIDEO_CAPTURE, 1, + &vivid_touch_cap_qops); + if (ret) + goto unreg_dev; + } + if (dev->has_fb) { /* Create framebuffer for testing capture/output overlay */ ret = vivid_fb_init(dev); @@ -1345,6 +1468,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) v4l2_ctrl_handler_setup(&dev->ctrl_hdl_sdr_cap); v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_cap); v4l2_ctrl_handler_setup(&dev->ctrl_hdl_meta_out); + v4l2_ctrl_handler_setup(&dev->ctrl_hdl_touch_cap); /* finally start creating the device nodes */ if (dev->has_vid_cap) { @@ -1635,6 +1759,35 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) video_device_node_name(vfd)); } + if (dev->has_touch_cap) { + vfd = &dev->touch_cap_dev; + snprintf(vfd->name, sizeof(vfd->name), + "vivid-%03d-touch-cap", inst); + vfd->fops = &vivid_fops; + vfd->ioctl_ops = &vivid_ioctl_ops; + vfd->device_caps = dev->touch_cap_caps; + vfd->release = video_device_release_empty; + vfd->v4l2_dev = &dev->v4l2_dev; + vfd->queue = &dev->vb_touch_cap_q; + vfd->tvnorms = tvnorms_cap; + vfd->lock = &dev->mutex; + video_set_drvdata(vfd, dev); +#ifdef CONFIG_MEDIA_CONTROLLER + dev->touch_cap_pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vfd->entity, 1, + &dev->touch_cap_pad); + if (ret) + goto unreg_dev; +#endif + ret = video_register_device(vfd, VFL_TYPE_TOUCH, + touch_cap_nr[inst]); + if (ret < 0) + goto unreg_dev; + v4l2_info(&dev->v4l2_dev, + "V4L2 touch capture device registered as %s\n", + video_device_node_name(vfd)); + } + #ifdef CONFIG_MEDIA_CONTROLLER /* Register the media device */ ret = media_device_register(&dev->mdev); @@ -1651,6 +1804,7 @@ static int vivid_create_instance(struct platform_device *pdev, int inst) return 0; unreg_dev: + video_unregister_device(&dev->touch_cap_dev); video_unregister_device(&dev->meta_out_dev); video_unregister_device(&dev->meta_cap_dev); video_unregister_device(&dev->radio_tx_dev); @@ -1778,6 +1932,11 @@ static int vivid_remove(struct platform_device *pdev) video_device_node_name(&dev->meta_out_dev)); video_unregister_device(&dev->meta_out_dev); } + if (dev->has_touch_cap) { + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->touch_cap_dev)); + video_unregister_device(&dev->touch_cap_dev); + } cec_unregister_adapter(dev->cec_rx_adap); for (j = 0; j < MAX_OUTPUTS; j++) cec_unregister_adapter(dev->cec_tx_adap[j]); diff --git a/drivers/media/platform/vivid/vivid-core.h b/drivers/media/platform/vivid/vivid-core.h index 59192b67231c..072197f10128 100644 --- a/drivers/media/platform/vivid/vivid-core.h +++ b/drivers/media/platform/vivid/vivid-core.h @@ -133,6 +133,7 @@ struct vivid_dev { struct media_pad sdr_cap_pad; struct media_pad meta_cap_pad; struct media_pad meta_out_pad; + struct media_pad touch_cap_pad; #endif struct v4l2_ctrl_handler ctrl_hdl_user_gen; struct v4l2_ctrl_handler ctrl_hdl_user_vid; @@ -159,6 +160,8 @@ struct vivid_dev { struct v4l2_ctrl_handler ctrl_hdl_meta_cap; struct video_device meta_out_dev; struct v4l2_ctrl_handler ctrl_hdl_meta_out; + struct video_device touch_cap_dev; + struct v4l2_ctrl_handler ctrl_hdl_touch_cap; spinlock_t slock; struct mutex mutex; @@ -173,6 +176,7 @@ struct vivid_dev { u32 radio_tx_caps; u32 meta_cap_caps; u32 meta_out_caps; + u32 touch_cap_caps; /* supported features */ bool multiplanar; @@ -201,6 +205,7 @@ struct vivid_dev { bool has_meta_cap; bool has_meta_out; bool has_tv_tuner; + bool has_touch_cap; bool can_loop_video; @@ -404,6 +409,8 @@ struct vivid_dev { struct list_head vbi_cap_active; struct vb2_queue vb_meta_cap_q; struct list_head meta_cap_active; + struct vb2_queue vb_touch_cap_q; + struct list_head touch_cap_active; /* thread for generating video capture stream */ struct task_struct *kthread_vid_cap; @@ -425,6 +432,22 @@ struct vivid_dev { u32 meta_cap_seq_count; bool meta_cap_streaming; + /* Touch capture */ + struct task_struct *kthread_touch_cap; + unsigned long jiffies_touch_cap; + u64 touch_cap_stream_start; + u32 touch_cap_seq_offset; + bool touch_cap_seq_resync; + u32 touch_cap_seq_start; + u32 touch_cap_seq_count; + bool touch_cap_streaming; + struct v4l2_fract timeperframe_tch_cap; + struct v4l2_pix_format tch_format; + int tch_test_pattern; + int tch_index; + int tch_cnt; + int tch_empty_cnt; + /* video output */ const struct vivid_fmt *fmt_out; struct v4l2_fract timeperframe_vid_out; diff --git a/drivers/media/platform/vivid/vivid-ctrls.c b/drivers/media/platform/vivid/vivid-ctrls.c index 68e8124c7973..334130568dcb 100644 --- a/drivers/media/platform/vivid/vivid-ctrls.c +++ b/drivers/media/platform/vivid/vivid-ctrls.c @@ -1508,6 +1508,7 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap, struct v4l2_ctrl_handler *hdl_sdr_cap = &dev->ctrl_hdl_sdr_cap; struct v4l2_ctrl_handler *hdl_meta_cap = &dev->ctrl_hdl_meta_cap; struct v4l2_ctrl_handler *hdl_meta_out = &dev->ctrl_hdl_meta_out; + struct v4l2_ctrl_handler *hdl_tch_cap = &dev->ctrl_hdl_touch_cap; struct v4l2_ctrl_config vivid_ctrl_dv_timings = { .ops = &vivid_vid_cap_ctrl_ops, @@ -1551,6 +1552,8 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap, v4l2_ctrl_new_custom(hdl_meta_cap, &vivid_ctrl_class, NULL); v4l2_ctrl_handler_init(hdl_meta_out, 2); v4l2_ctrl_new_custom(hdl_meta_out, &vivid_ctrl_class, NULL); + v4l2_ctrl_handler_init(hdl_tch_cap, 2); + v4l2_ctrl_new_custom(hdl_tch_cap, &vivid_ctrl_class, NULL); /* User Controls */ dev->volume = v4l2_ctrl_new_std(hdl_user_aud, NULL, @@ -1904,6 +1907,13 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap, return hdl_meta_out->error; dev->meta_out_dev.ctrl_handler = hdl_meta_out; } + if (dev->has_touch_cap) { + v4l2_ctrl_add_handler(hdl_tch_cap, hdl_user_gen, NULL, false); + v4l2_ctrl_add_handler(hdl_tch_cap, hdl_streaming, NULL, false); + if (hdl_tch_cap->error) + return hdl_tch_cap->error; + dev->touch_cap_dev.ctrl_handler = hdl_tch_cap; + } return 0; } @@ -1925,4 +1935,5 @@ void vivid_free_controls(struct vivid_dev *dev) v4l2_ctrl_handler_free(&dev->ctrl_hdl_fb); v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_cap); v4l2_ctrl_handler_free(&dev->ctrl_hdl_meta_out); + v4l2_ctrl_handler_free(&dev->ctrl_hdl_touch_cap); } diff --git a/drivers/media/platform/vivid/vivid-kthread-touch.c b/drivers/media/platform/vivid/vivid-kthread-touch.c new file mode 100644 index 000000000000..3cb82f68bf73 --- /dev/null +++ b/drivers/media/platform/vivid/vivid-kthread-touch.c @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-kthread-touch.c - touch capture thread support functions. + * + */ + +#include +#include "vivid-core.h" +#include "vivid-kthread-touch.h" +#include "vivid-touch-cap.h" + +static noinline_for_stack void vivid_thread_tch_cap_tick(struct vivid_dev *dev, + int dropped_bufs) +{ + struct vivid_buffer *tch_cap_buf = NULL; + + dprintk(dev, 1, "Touch Capture Thread Tick\n"); + + spin_lock(&dev->slock); + if (!list_empty(&dev->touch_cap_active)) { + tch_cap_buf = list_entry(dev->touch_cap_active.next, + struct vivid_buffer, list); + list_del(&tch_cap_buf->list); + } + + spin_unlock(&dev->slock); + + if (tch_cap_buf) { + v4l2_ctrl_request_setup(tch_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + + vivid_fillbuff_tch(dev, tch_cap_buf); + v4l2_ctrl_request_complete(tch_cap_buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + vb2_buffer_done(&tch_cap_buf->vb.vb2_buf, dev->dqbuf_error ? + VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + dprintk(dev, 2, "touch_cap buffer %d done\n", + tch_cap_buf->vb.vb2_buf.index); + + tch_cap_buf->vb.vb2_buf.timestamp = ktime_get_ns() + dev->time_wrap_offset; + } + dev->dqbuf_error = false; +} + +static int vivid_thread_touch_cap(void *data) +{ + struct vivid_dev *dev = data; + u64 numerators_since_start; + u64 buffers_since_start; + u64 next_jiffies_since_start; + unsigned long jiffies_since_start; + unsigned long cur_jiffies; + unsigned int wait_jiffies; + unsigned int numerator; + unsigned int denominator; + int dropped_bufs; + + dprintk(dev, 1, "Touch Capture Thread Start\n"); + + set_freezable(); + + /* Resets frame counters */ + dev->touch_cap_seq_offset = 0; + dev->touch_cap_seq_count = 0; + dev->touch_cap_seq_resync = false; + dev->jiffies_touch_cap = jiffies; + + for (;;) { + try_to_freeze(); + if (kthread_should_stop()) + break; + + if (!mutex_trylock(&dev->mutex)) { + schedule_timeout_uninterruptible(1); + continue; + } + cur_jiffies = jiffies; + if (dev->touch_cap_seq_resync) { + dev->jiffies_touch_cap = cur_jiffies; + dev->touch_cap_seq_offset = dev->touch_cap_seq_count + 1; + dev->touch_cap_seq_count = 0; + dev->cap_seq_resync = false; + } + denominator = dev->timeperframe_tch_cap.denominator; + numerator = dev->timeperframe_tch_cap.numerator; + + /* Calculate the number of jiffies since we started streaming */ + jiffies_since_start = cur_jiffies - dev->jiffies_touch_cap; + /* Get the number of buffers streamed since the start */ + buffers_since_start = (u64)jiffies_since_start * denominator + + (HZ * numerator) / 2; + do_div(buffers_since_start, HZ * numerator); + + /* + * After more than 0xf0000000 (rounded down to a multiple of + * 'jiffies-per-day' to ease jiffies_to_msecs calculation) + * jiffies have passed since we started streaming reset the + * counters and keep track of the sequence offset. + */ + if (jiffies_since_start > JIFFIES_RESYNC) { + dev->jiffies_touch_cap = cur_jiffies; + dev->cap_seq_offset = buffers_since_start; + buffers_since_start = 0; + } + dropped_bufs = buffers_since_start + dev->touch_cap_seq_offset - dev->touch_cap_seq_count; + dev->touch_cap_seq_count = buffers_since_start + dev->touch_cap_seq_offset; + + vivid_thread_tch_cap_tick(dev, dropped_bufs); + + /* + * Calculate the number of 'numerators' streamed + * since we started, including the current buffer. + */ + numerators_since_start = ++buffers_since_start * numerator; + + /* And the number of jiffies since we started */ + jiffies_since_start = jiffies - dev->jiffies_touch_cap; + + mutex_unlock(&dev->mutex); + + /* + * Calculate when that next buffer is supposed to start + * in jiffies since we started streaming. + */ + next_jiffies_since_start = numerators_since_start * HZ + + denominator / 2; + do_div(next_jiffies_since_start, denominator); + /* If it is in the past, then just schedule asap */ + if (next_jiffies_since_start < jiffies_since_start) + next_jiffies_since_start = jiffies_since_start; + + wait_jiffies = next_jiffies_since_start - jiffies_since_start; + schedule_timeout_interruptible(wait_jiffies ? wait_jiffies : 1); + } + dprintk(dev, 1, "Touch Capture Thread End\n"); + return 0; +} + +int vivid_start_generating_touch_cap(struct vivid_dev *dev) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (dev->kthread_touch_cap) { + dev->touch_cap_streaming = true; + return 0; + } + + dev->kthread_touch_cap = kthread_run(vivid_thread_touch_cap, dev, + "%s-tch-cap", dev->v4l2_dev.name); + + if (IS_ERR(dev->kthread_touch_cap)) { + int err = PTR_ERR(dev->kthread_touch_cap); + + dev->kthread_touch_cap = NULL; + v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); + return err; + } + dev->touch_cap_streaming = true; + dprintk(dev, 1, "returning from %s\n", __func__); + return 0; +} + +void vivid_stop_generating_touch_cap(struct vivid_dev *dev) +{ + dprintk(dev, 1, "%s\n", __func__); + + if (!dev->kthread_touch_cap) + return; + + dev->touch_cap_streaming = false; + + while (!list_empty(&dev->touch_cap_active)) { + struct vivid_buffer *buf; + + buf = list_entry(dev->touch_cap_active.next, + struct vivid_buffer, list); + list_del(&buf->list); + v4l2_ctrl_request_complete(buf->vb.vb2_buf.req_obj.req, + &dev->ctrl_hdl_touch_cap); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dprintk(dev, 2, "touch_cap buffer %d done\n", + buf->vb.vb2_buf.index); + } + + kthread_stop(dev->kthread_touch_cap); + dev->kthread_touch_cap = NULL; +} diff --git a/drivers/media/platform/vivid/vivid-kthread-touch.h b/drivers/media/platform/vivid/vivid-kthread-touch.h new file mode 100644 index 000000000000..ecf79b46209e --- /dev/null +++ b/drivers/media/platform/vivid/vivid-kthread-touch.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-kthread-cap.h - video/vbi capture thread support functions. + * + */ + +#ifndef _VIVID_KTHREAD_CAP_H_ +#define _VIVID_KTHREAD_CAP_H_ + +int vivid_start_generating_touch_cap(struct vivid_dev *dev); +void vivid_stop_generating_touch_cap(struct vivid_dev *dev); + +#endif diff --git a/drivers/media/platform/vivid/vivid-touch-cap.c b/drivers/media/platform/vivid/vivid-touch-cap.c new file mode 100644 index 000000000000..b7e6a40c4148 --- /dev/null +++ b/drivers/media/platform/vivid/vivid-touch-cap.c @@ -0,0 +1,360 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vivid-touch-cap.c - touch support functions. + */ + +#include "vivid-core.h" +#include "vivid-kthread-touch.h" +#include "vivid-touch-cap.h" + +static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + struct v4l2_pix_format *f = &dev->tch_format; + unsigned int size = f->sizeimage; + + if (*nplanes) { + if (sizes[0] < size) + return -EINVAL; + } else { + sizes[0] = size; + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = 1; + return 0; +} + +static int touch_cap_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct v4l2_pix_format *f = &dev->tch_format; + unsigned int size = f->sizeimage; + + dprintk(dev, 1, "%s\n", __func__); + + if (dev->buf_prepare_error) { + /* + * Error injection: test what happens if buf_prepare() returns + * an error. + */ + dev->buf_prepare_error = false; + return -EINVAL; + } + if (vb2_plane_size(vb, 0) < size) { + dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + vb2_set_plane_payload(vb, 0, size); + + return 0; +} + +static void touch_cap_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->touch_cap_active); + spin_unlock(&dev->slock); +} + +static int touch_cap_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + dprintk(dev, 1, "%s\n", __func__); + dev->touch_cap_seq_count = 0; + dev->tch_test_pattern = SINGLE_TAP; + dev->tch_cnt = 1; + dev->tch_empty_cnt = 0; + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_touch_cap(dev); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, + &dev->touch_cap_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void touch_cap_stop_streaming(struct vb2_queue *vq) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + + dprintk(dev, 1, "%s\n", __func__); + vivid_stop_generating_touch_cap(dev); +} + +static void touch_cap_buf_request_complete(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + + v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_touch_cap); +} + +const struct vb2_ops vivid_touch_cap_qops = { + .queue_setup = touch_cap_queue_setup, + .buf_prepare = touch_cap_buf_prepare, + .buf_queue = touch_cap_buf_queue, + .start_streaming = touch_cap_start_streaming, + .stop_streaming = touch_cap_stop_streaming, + .buf_request_complete = touch_cap_buf_request_complete, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +int vivid_enum_fmt_tch(struct file *file, void *priv, struct v4l2_fmtdesc *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (f->index) + return -EINVAL; + + dprintk(dev, 1, "%s\n", __func__); + + f->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + return 0; +} + +int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + + dprintk(dev, 1, "%s\n", __func__); + + f->fmt.pix = dev->tch_format; + return 0; +} + +int vivid_g_parm_tch(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct vivid_dev *dev = video_drvdata(file); + + dprintk(dev, 1, "%s\n", __func__); + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe = dev->timeperframe_tch_cap; + parm->parm.capture.readbuffers = 1; + return 0; +} + +int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp) +{ + struct vivid_dev *dev = video_drvdata(file); + + dprintk(dev, 1, "%s\n", __func__); + + if (inp->index) + return -EINVAL; + + inp->type = V4L2_INPUT_TYPE_TOUCH; + snprintf(inp->name, sizeof(inp->name), "Vivid Touch %u", + dev->input_name_counter[inp->index]); + inp->capabilities = 0; + return 0; +} + +int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +int vivid_set_touch(struct vivid_dev *dev, unsigned int i) +{ + struct v4l2_pix_format *f = &dev->tch_format; + + if (i) + return -EINVAL; + + f->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + f->width = VIVID_TCH_WIDTH; + f->height = VIVID_TCH_HEIGHT; + f->field = V4L2_FIELD_NONE; + f->colorspace = V4L2_COLORSPACE_RAW; + f->bytesperline = f->width * sizeof(s16); + f->sizeimage = f->width * f->height * sizeof(s16); + return 0; +} + +int vivid_s_input_tch(struct file *file, void *priv, unsigned int i) +{ + return vivid_set_touch(video_drvdata(file), i); +} + +int vivid_enum_frameintervals_tch(struct file *file, void *priv, + struct v4l2_frmivalenum *fival) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_pix_format *f = &dev->tch_format; + + if (fival->index) + return -EINVAL; + if (fival->width != f->width || + fival->height != f->height) + return -EINVAL; + + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete = dev->timeperframe_tch_cap; + return 0; +} + +int vivid_enum_framesizes_tch(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_pix_format *f = &dev->tch_format; + + if (fsize->index) + return -EINVAL; + if (fsize->pixel_format != V4L2_TCH_FMT_DELTA_TD16) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = f->width; + fsize->discrete.height = f->height; + return 0; +} + +void vivid_filltch(__s16 *tch_buf, int index, int size, int fill_noise) +{ + int i, rand, idx, value = 0; + + if (fill_noise) { + for (i = 0; i < size / 10; i++) { + idx = get_random_int() % size; + rand = get_random_int(); + if (i % 2) + tch_buf[idx] = rand % -3; + else + tch_buf[idx] = rand % 3; + } + } + + while (value < 180) + value = get_random_int() % VIVID_MAX_PRESSURE; + tch_buf[index] = value; +} + +void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf) +{ + struct v4l2_pix_format *f = &dev->tch_format; + int size = f->width * f->height; + int index = 0, x, y, xstart, ystart; + + __s16 *tch_buf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + + buf->vb.sequence = dev->touch_cap_seq_count; + + memset(tch_buf, 0, vb2_plane_size(&buf->vb.vb2_buf, 0)); + + if (dev->tch_empty_cnt < 2) { + dev->tch_empty_cnt++; + return; + } + + switch (dev->tch_test_pattern) { + case SINGLE_TAP: + case DOUBLE_TAP: + case TRIPLE_TAP: + if (dev->tch_cnt == 1) + dev->tch_index = get_random_int() % size; + if (dev->tch_cnt % 2) + vivid_filltch(tch_buf, dev->tch_index, size, 1); + dev->tch_cnt++; + if (dev->tch_cnt > dev->tch_test_pattern * 2) { + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + dev->tch_cnt = 1; + } + break; + case MOVE_LEFT_TO_RIGHT: + x = get_random_int() % f->width; + for (index = x; index < f->width ; index++) + vivid_filltch(tch_buf, index, size, (index == x)); + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + dev->tch_index = 0; + break; + case ZOOM_IN: + case ZOOM_OUT: + x = f->width / 2; + y = f->height / 2; + if (!dev->tch_index) { + index = x + f->width * y; + vivid_filltch(tch_buf, index, size, 1); + if (dev->tch_test_pattern == ZOOM_OUT) { + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + } + } else { + index = (x - dev->tch_index) + f->width * (y - dev->tch_index); + vivid_filltch(tch_buf, index, size, 1); + index = (x + dev->tch_index) + f->width * (y + dev->tch_index); + vivid_filltch(tch_buf, index, size, 0); + } + if (dev->tch_test_pattern == ZOOM_IN) { + dev->tch_index++; + if (x + dev->tch_index >= f->width || + y + dev->tch_index >= f->height) { + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + } + } + if (dev->tch_test_pattern == ZOOM_OUT) + dev->tch_index--; + break; + case PALM_PRESS: + xstart = f->width - f->width / 4; + ystart = f->height - f->height / 4; + for (x = xstart; x < f->width; x++) { + for (y = ystart; y < f->height; y++) { + index = x + f->width * y; + vivid_filltch(tch_buf, index, size, + (x == xstart && y == ystart)); + } + } + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + break; + case MULTIPLE_PRESS: + /*16 pressure points*/ + for (x = 0; x < 16; x++) { + index = get_random_int() % size; + vivid_filltch(tch_buf, index, size, x == 0); + } + dev->tch_test_pattern++; + dev->tch_empty_cnt = 0; + break; + } + + if (dev->tch_test_pattern == TEST_CASE_MAX) { + dev->tch_test_pattern = SINGLE_TAP; + dev->tch_cnt = 1; + } +} diff --git a/drivers/media/platform/vivid/vivid-touch-cap.h b/drivers/media/platform/vivid/vivid-touch-cap.h new file mode 100644 index 000000000000..d93092d6aba7 --- /dev/null +++ b/drivers/media/platform/vivid/vivid-touch-cap.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * vivid-touch-cap.h - touch support functions. + */ +#ifndef _VIVID_TOUCH_CAP_H_ +#define _VIVID_TOUCH_CAP_H_ + +#define VIVID_TCH_HEIGHT 12 +#define VIVID_TCH_WIDTH 21 +#define VIVID_MAX_PRESSURE 255 + +enum vivid_tch_test { + SINGLE_TAP = 1, + DOUBLE_TAP, + TRIPLE_TAP, + MOVE_LEFT_TO_RIGHT, + ZOOM_IN, + ZOOM_OUT, + PALM_PRESS, + MULTIPLE_PRESS, + TEST_CASE_MAX +}; + +extern const struct vb2_ops vivid_touch_cap_qops; + +int vivid_enum_fmt_tch(struct file *file, void *priv, struct v4l2_fmtdesc *f); +int vivid_g_fmt_tch(struct file *file, void *priv, struct v4l2_format *f); +int vivid_enum_input_tch(struct file *file, void *priv, struct v4l2_input *inp); +int vivid_g_input_tch(struct file *file, void *priv, unsigned int *i); +int vivid_s_input_tch(struct file *file, void *priv, unsigned int i); +void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf); +int vivid_set_touch(struct vivid_dev *dev, unsigned int i); +int vivid_g_parm_tch(struct file *file, void *priv, + struct v4l2_streamparm *parm); +int vivid_enum_frameintervals_tch(struct file *file, void *priv, + struct v4l2_frmivalenum *fival); +int vivid_enum_framesizes_tch(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize); +#endif