// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2008-2009 Texas Instruments Inc * * Driver name : VPFE Capture driver * VPFE Capture driver allows applications to capture and stream video * frames on DaVinci SoCs (DM6446, DM355 etc) from a YUV source such as * TVP5146 or Raw Bayer RGB image data from an image sensor * such as Microns' MT9T001, MT9T031 etc. * * These SoCs have, in common, a Video Processing Subsystem (VPSS) that * consists of a Video Processing Front End (VPFE) for capturing * video/raw image data and Video Processing Back End (VPBE) for displaying * YUV data through an in-built analog encoder or Digital LCD port. This * driver is for capture through VPFE. A typical EVM using these SoCs have * following high level configuration. * * decoder(TVP5146/ YUV/ * MT9T001) --> Raw Bayer RGB ---> MUX -> VPFE (CCDC/ISIF) * data input | | * V | * SDRAM | * V * Image Processor * | * V * SDRAM * The data flow happens from a decoder connected to the VPFE over a * YUV embedded (BT.656/BT.1120) or separate sync or raw bayer rgb interface * and to the input of VPFE through an optional MUX (if more inputs are * to be interfaced on the EVM). The input data is first passed through * CCDC (CCD Controller, a.k.a Image Sensor Interface, ISIF). The CCDC * does very little or no processing on YUV data and does pre-process Raw * Bayer RGB data through modules such as Defect Pixel Correction (DFC) * Color Space Conversion (CSC), data gain/offset etc. After this, data * can be written to SDRAM or can be connected to the image processing * block such as IPIPE (on DM355 only). * * Features supported * - MMAP IO * - Capture using TVP5146 over BT.656 * - support for interfacing decoders using sub device model * - Work with DM355 or DM6446 CCDC to do Raw Bayer RGB/YUV * data capture to SDRAM. * TODO list * - Support multiple REQBUF after open * - Support for de-allocating buffers through REQBUF * - Support for Raw Bayer RGB capture * - Support for chaining Image Processor * - Support for static allocation of buffers * - Support for USERPTR IO * - Support for STREAMON before QBUF * - Support for control ioctls */ #include <linux/module.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <media/v4l2-common.h> #include <linux/io.h> #include <media/davinci/vpfe_capture.h> #include "ccdc_hw_device.h" static int debug; static u32 numbuffers = 3; static u32 bufsize = (720 * 576 * 2); module_param(numbuffers, uint, S_IRUGO); module_param(bufsize, uint, S_IRUGO); module_param(debug, int, 0644); MODULE_PARM_DESC(numbuffers, "buffer count (default:3)"); MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)"); MODULE_PARM_DESC(debug, "Debug level 0-1"); MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Texas Instruments"); /* standard information */ struct vpfe_standard { <------>v4l2_std_id std_id; <------>unsigned int width; <------>unsigned int height; <------>struct v4l2_fract pixelaspect; <------>/* 0 - progressive, 1 - interlaced */ <------>int frame_format; }; /* ccdc configuration */ struct ccdc_config { <------>/* This make sure vpfe is probed and ready to go */ <------>int vpfe_probed; <------>/* name of ccdc device */ <------>char name[32]; }; /* data structures */ static struct vpfe_config_params config_params = { <------>.min_numbuffers = 3, <------>.numbuffers = 3, <------>.min_bufsize = 720 * 480 * 2, <------>.device_bufsize = 720 * 576 * 2, }; /* ccdc device registered */ static const struct ccdc_hw_device *ccdc_dev; /* lock for accessing ccdc information */ static DEFINE_MUTEX(ccdc_lock); /* ccdc configuration */ static struct ccdc_config *ccdc_cfg; static const struct vpfe_standard vpfe_standards[] = { <------>{V4L2_STD_525_60, 720, 480, {11, 10}, 1}, <------>{V4L2_STD_625_50, 720, 576, {54, 59}, 1}, }; /* Used when raw Bayer image from ccdc is directly captured to SDRAM */ static const struct vpfe_pixel_format vpfe_pix_fmts[] = { <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_SBGGR8, <------><------>.bpp = 1, <------>}, <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_SBGGR16, <------><------>.bpp = 2, <------>}, <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, <------><------>.bpp = 1, <------>}, <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_UYVY, <------><------>.bpp = 2, <------>}, <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_YUYV, <------><------>.bpp = 2, <------>}, <------>{ <------><------>.pixelformat = V4L2_PIX_FMT_NV12, <------><------>.bpp = 1, <------>}, }; /* * vpfe_lookup_pix_format() * lookup an entry in the vpfe pix format table based on pix_format */ static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) { <------>int i; <------>for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) { <------><------>if (pix_format == vpfe_pix_fmts[i].pixelformat) <------><------><------>return &vpfe_pix_fmts[i]; <------>} <------>return NULL; } /* * vpfe_register_ccdc_device. CCDC module calls this to * register with vpfe capture */ int vpfe_register_ccdc_device(const struct ccdc_hw_device *dev) { <------>int ret = 0; <------>printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); <------>if (!dev->hw_ops.open || <------> !dev->hw_ops.enable || <------> !dev->hw_ops.set_hw_if_params || <------> !dev->hw_ops.configure || <------> !dev->hw_ops.set_buftype || <------> !dev->hw_ops.get_buftype || <------> !dev->hw_ops.enum_pix || <------> !dev->hw_ops.set_frame_format || <------> !dev->hw_ops.get_frame_format || <------> !dev->hw_ops.get_pixel_format || <------> !dev->hw_ops.set_pixel_format || <------> !dev->hw_ops.set_image_window || <------> !dev->hw_ops.get_image_window || <------> !dev->hw_ops.get_line_length || <------> !dev->hw_ops.getfid) <------><------>return -EINVAL; <------>mutex_lock(&ccdc_lock); <------>if (!ccdc_cfg) { <------><------>/* <------><------> * TODO. Will this ever happen? if so, we need to fix it. <------><------> * Proabably we need to add the request to a linked list and <------><------> * walk through it during vpfe probe <------><------> */ <------><------>printk(KERN_ERR "vpfe capture not initialized\n"); <------><------>ret = -EFAULT; <------><------>goto unlock; <------>} <------>if (strcmp(dev->name, ccdc_cfg->name)) { <------><------>/* ignore this ccdc */ <------><------>ret = -EINVAL; <------><------>goto unlock; <------>} <------>if (ccdc_dev) { <------><------>printk(KERN_ERR "ccdc already registered\n"); <------><------>ret = -EINVAL; <------><------>goto unlock; <------>} <------>ccdc_dev = dev; unlock: <------>mutex_unlock(&ccdc_lock); <------>return ret; } EXPORT_SYMBOL(vpfe_register_ccdc_device); /* * vpfe_unregister_ccdc_device. CCDC module calls this to * unregister with vpfe capture */ void vpfe_unregister_ccdc_device(const struct ccdc_hw_device *dev) { <------>if (!dev) { <------><------>printk(KERN_ERR "invalid ccdc device ptr\n"); <------><------>return; <------>} <------>printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", <------><------>dev->name); <------>if (strcmp(dev->name, ccdc_cfg->name)) { <------><------>/* ignore this ccdc */ <------><------>return; <------>} <------>mutex_lock(&ccdc_lock); <------>ccdc_dev = NULL; <------>mutex_unlock(&ccdc_lock); } EXPORT_SYMBOL(vpfe_unregister_ccdc_device); /* * vpfe_config_ccdc_image_format() * For a pix format, configure ccdc to setup the capture */ static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) { <------>enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; <------>int ret = 0; <------>if (ccdc_dev->hw_ops.set_pixel_format( <------><------><------>vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------>"couldn't set pix format in ccdc\n"); <------><------>return -EINVAL; <------>} <------>/* configure the image window */ <------>ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); <------>switch (vpfe_dev->fmt.fmt.pix.field) { <------>case V4L2_FIELD_INTERLACED: <------><------>/* do nothing, since it is default */ <------><------>ret = ccdc_dev->hw_ops.set_buftype( <------><------><------><------>CCDC_BUFTYPE_FLD_INTERLEAVED); <------><------>break; <------>case V4L2_FIELD_NONE: <------><------>frm_fmt = CCDC_FRMFMT_PROGRESSIVE; <------><------>/* buffer type only applicable for interlaced scan */ <------><------>break; <------>case V4L2_FIELD_SEQ_TB: <------><------>ret = ccdc_dev->hw_ops.set_buftype( <------><------><------><------>CCDC_BUFTYPE_FLD_SEPARATED); <------><------>break; <------>default: <------><------>return -EINVAL; <------>} <------>/* set the frame format */ <------>if (!ret) <------><------>ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); <------>return ret; } /* * vpfe_config_image_format() * For a given standard, this functions sets up the default * pix format & crop values in the vpfe device and ccdc. It first * starts with defaults based values from the standard table. * It then checks if sub device supports get_fmt and then override the * values based on that.Sets crop values to match with scan resolution * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the * values in ccdc */ static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, <------><------><------><------> v4l2_std_id std_id) { <------>struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; <------>struct v4l2_subdev_format fmt = { <------><------>.which = V4L2_SUBDEV_FORMAT_ACTIVE, <------>}; <------>struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format; <------>struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; <------>int i, ret; <------>for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { <------><------>if (vpfe_standards[i].std_id & std_id) { <------><------><------>vpfe_dev->std_info.active_pixels = <------><------><------><------><------>vpfe_standards[i].width; <------><------><------>vpfe_dev->std_info.active_lines = <------><------><------><------><------>vpfe_standards[i].height; <------><------><------>vpfe_dev->std_info.frame_format = <------><------><------><------><------>vpfe_standards[i].frame_format; <------><------><------>vpfe_dev->std_index = i; <------><------><------>break; <------><------>} <------>} <------>if (i == ARRAY_SIZE(vpfe_standards)) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); <------><------>return -EINVAL; <------>} <------>vpfe_dev->crop.top = 0; <------>vpfe_dev->crop.left = 0; <------>vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; <------>vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; <------>pix->width = vpfe_dev->crop.width; <------>pix->height = vpfe_dev->crop.height; <------>/* first field and frame format based on standard frame format */ <------>if (vpfe_dev->std_info.frame_format) { <------><------>pix->field = V4L2_FIELD_INTERLACED; <------><------>/* assume V4L2_PIX_FMT_UYVY as default */ <------><------>pix->pixelformat = V4L2_PIX_FMT_UYVY; <------><------>v4l2_fill_mbus_format(mbus_fmt, pix, <------><------><------><------>MEDIA_BUS_FMT_YUYV10_2X10); <------>} else { <------><------>pix->field = V4L2_FIELD_NONE; <------><------>/* assume V4L2_PIX_FMT_SBGGR8 */ <------><------>pix->pixelformat = V4L2_PIX_FMT_SBGGR8; <------><------>v4l2_fill_mbus_format(mbus_fmt, pix, <------><------><------><------>MEDIA_BUS_FMT_SBGGR8_1X8); <------>} <------>/* if sub device supports get_fmt, override the defaults */ <------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, <------><------><------>sdinfo->grp_id, pad, get_fmt, NULL, &fmt); <------>if (ret && ret != -ENOIOCTLCMD) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------>"error in getting get_fmt from sub device\n"); <------><------>return ret; <------>} <------>v4l2_fill_pix_format(pix, mbus_fmt); <------>pix->bytesperline = pix->width * 2; <------>pix->sizeimage = pix->bytesperline * pix->height; <------>/* Sets the values in CCDC */ <------>ret = vpfe_config_ccdc_image_format(vpfe_dev); <------>if (ret) <------><------>return ret; <------>/* Update the values of sizeimage and bytesperline */ <------>pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); <------>pix->sizeimage = pix->bytesperline * pix->height; <------>return 0; } static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) { <------>int ret; <------>/* set first input of current subdevice as the current input */ <------>vpfe_dev->current_input = 0; <------>/* set default standard */ <------>vpfe_dev->std_index = 0; <------>/* Configure the default format information */ <------>ret = vpfe_config_image_format(vpfe_dev, <------><------><------><------>vpfe_standards[vpfe_dev->std_index].std_id); <------>if (ret) <------><------>return ret; <------>/* now open the ccdc device to initialize it */ <------>mutex_lock(&ccdc_lock); <------>if (!ccdc_dev) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); <------><------>ret = -ENODEV; <------><------>goto unlock; <------>} <------>if (!try_module_get(ccdc_dev->owner)) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); <------><------>ret = -ENODEV; <------><------>goto unlock; <------>} <------>ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); <------>if (!ret) <------><------>vpfe_dev->initialized = 1; <------>/* Clear all VPFE/CCDC interrupts */ <------>if (vpfe_dev->cfg->clr_intr) <------><------>vpfe_dev->cfg->clr_intr(-1); unlock: <------>mutex_unlock(&ccdc_lock); <------>return ret; } /* * vpfe_open : It creates object of file handle structure and * stores it in private_data member of filepointer */ static int vpfe_open(struct file *file) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct video_device *vdev = video_devdata(file); <------>struct vpfe_fh *fh; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); <------>if (!vpfe_dev->cfg->num_subdevs) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); <------><------>return -ENODEV; <------>} <------>/* Allocate memory for the file handle object */ <------>fh = kmalloc(sizeof(*fh), GFP_KERNEL); <------>if (!fh) <------><------>return -ENOMEM; <------>/* store pointer to fh in private_data member of file */ <------>file->private_data = fh; <------>fh->vpfe_dev = vpfe_dev; <------>v4l2_fh_init(&fh->fh, vdev); <------>mutex_lock(&vpfe_dev->lock); <------>/* If decoder is not initialized. initialize it */ <------>if (!vpfe_dev->initialized) { <------><------>if (vpfe_initialize_device(vpfe_dev)) { <------><------><------>mutex_unlock(&vpfe_dev->lock); <------><------><------>v4l2_fh_exit(&fh->fh); <------><------><------>kfree(fh); <------><------><------>return -ENODEV; <------><------>} <------>} <------>/* Increment device usrs counter */ <------>vpfe_dev->usrs++; <------>/* Set io_allowed member to false */ <------>fh->io_allowed = 0; <------>v4l2_fh_add(&fh->fh); <------>mutex_unlock(&vpfe_dev->lock); <------>return 0; } static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) { <------>unsigned long addr; <------>vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, <------><------><------><------><------>struct videobuf_buffer, queue); <------>list_del(&vpfe_dev->next_frm->queue); <------>vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; <------>addr = videobuf_to_dma_contig(vpfe_dev->next_frm); <------>ccdc_dev->hw_ops.setfbaddr(addr); } static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev) { <------>unsigned long addr; <------>addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); <------>addr += vpfe_dev->field_off; <------>ccdc_dev->hw_ops.setfbaddr(addr); } static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) { <------>vpfe_dev->cur_frm->ts = ktime_get_ns(); <------>vpfe_dev->cur_frm->state = VIDEOBUF_DONE; <------>vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; <------>wake_up_interruptible(&vpfe_dev->cur_frm->done); <------>vpfe_dev->cur_frm = vpfe_dev->next_frm; } /* ISR for VINT0*/ static irqreturn_t vpfe_isr(int irq, void *dev_id) { <------>struct vpfe_device *vpfe_dev = dev_id; <------>enum v4l2_field field; <------>int fid; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); <------>field = vpfe_dev->fmt.fmt.pix.field; <------>/* if streaming not started, don't do anything */ <------>if (!vpfe_dev->started) <------><------>goto clear_intr; <------>/* only for 6446 this will be applicable */ <------>if (ccdc_dev->hw_ops.reset) <------><------>ccdc_dev->hw_ops.reset(); <------>if (field == V4L2_FIELD_NONE) { <------><------>/* handle progressive frame capture */ <------><------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, <------><------><------>"frame format is progressive...\n"); <------><------>if (vpfe_dev->cur_frm != vpfe_dev->next_frm) <------><------><------>vpfe_process_buffer_complete(vpfe_dev); <------><------>goto clear_intr; <------>} <------>/* interlaced or TB capture check which field we are in hardware */ <------>fid = ccdc_dev->hw_ops.getfid(); <------>/* switch the software maintained field id */ <------>vpfe_dev->field_id ^= 1; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", <------><------>fid, vpfe_dev->field_id); <------>if (fid == vpfe_dev->field_id) { <------><------>/* we are in-sync here,continue */ <------><------>if (fid == 0) { <------><------><------>/* <------><------><------> * One frame is just being captured. If the next frame <------><------><------> * is available, release the current frame and move on <------><------><------> */ <------><------><------>if (vpfe_dev->cur_frm != vpfe_dev->next_frm) <------><------><------><------>vpfe_process_buffer_complete(vpfe_dev); <------><------><------>/* <------><------><------> * based on whether the two fields are stored <------><------><------> * interleavely or separately in memory, reconfigure <------><------><------> * the CCDC memory address <------><------><------> */ <------><------><------>if (field == V4L2_FIELD_SEQ_TB) <------><------><------><------>vpfe_schedule_bottom_field(vpfe_dev); <------><------><------>goto clear_intr; <------><------>} <------><------>/* <------><------> * if one field is just being captured configure <------><------> * the next frame get the next frame from the empty <------><------> * queue if no frame is available hold on to the <------><------> * current buffer <------><------> */ <------><------>spin_lock(&vpfe_dev->dma_queue_lock); <------><------>if (!list_empty(&vpfe_dev->dma_queue) && <------><------> vpfe_dev->cur_frm == vpfe_dev->next_frm) <------><------><------>vpfe_schedule_next_buffer(vpfe_dev); <------><------>spin_unlock(&vpfe_dev->dma_queue_lock); <------>} else if (fid == 0) { <------><------>/* <------><------> * out of sync. Recover from any hardware out-of-sync. <------><------> * May loose one frame <------><------> */ <------><------>vpfe_dev->field_id = fid; <------>} clear_intr: <------>if (vpfe_dev->cfg->clr_intr) <------><------>vpfe_dev->cfg->clr_intr(irq); <------>return IRQ_HANDLED; } /* vdint1_isr - isr handler for VINT1 interrupt */ static irqreturn_t vdint1_isr(int irq, void *dev_id) { <------>struct vpfe_device *vpfe_dev = dev_id; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); <------>/* if streaming not started, don't do anything */ <------>if (!vpfe_dev->started) { <------><------>if (vpfe_dev->cfg->clr_intr) <------><------><------>vpfe_dev->cfg->clr_intr(irq); <------><------>return IRQ_HANDLED; <------>} <------>spin_lock(&vpfe_dev->dma_queue_lock); <------>if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && <------> !list_empty(&vpfe_dev->dma_queue) && <------> vpfe_dev->cur_frm == vpfe_dev->next_frm) <------><------>vpfe_schedule_next_buffer(vpfe_dev); <------>spin_unlock(&vpfe_dev->dma_queue_lock); <------>if (vpfe_dev->cfg->clr_intr) <------><------>vpfe_dev->cfg->clr_intr(irq); <------>return IRQ_HANDLED; } static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) { <------>enum ccdc_frmfmt frame_format; <------>frame_format = ccdc_dev->hw_ops.get_frame_format(); <------>if (frame_format == CCDC_FRMFMT_PROGRESSIVE) <------><------>free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); } static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) { <------>enum ccdc_frmfmt frame_format; <------>frame_format = ccdc_dev->hw_ops.get_frame_format(); <------>if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { <------><------>return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, <------><------><------><------> 0, "vpfe_capture1", <------><------><------><------> vpfe_dev); <------>} <------>return 0; } /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) { <------>vpfe_dev->started = 0; <------>ccdc_dev->hw_ops.enable(0); <------>if (ccdc_dev->hw_ops.enable_out_to_sdram) <------><------>ccdc_dev->hw_ops.enable_out_to_sdram(0); } /* * vpfe_release : This function deletes buffer queue, frees the * buffers and the vpfe file handle */ static int vpfe_release(struct file *file) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_fh *fh = file->private_data; <------>struct vpfe_subdev_info *sdinfo; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); <------>/* Get the device lock */ <------>mutex_lock(&vpfe_dev->lock); <------>/* if this instance is doing IO */ <------>if (fh->io_allowed) { <------><------>if (vpfe_dev->started) { <------><------><------>sdinfo = vpfe_dev->current_subdev; <------><------><------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, <------><------><------><------><------><------><------> sdinfo->grp_id, <------><------><------><------><------><------><------> video, s_stream, 0); <------><------><------>if (ret && (ret != -ENOIOCTLCMD)) <------><------><------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------><------>"stream off failed in subdev\n"); <------><------><------>vpfe_stop_ccdc_capture(vpfe_dev); <------><------><------>vpfe_detach_irq(vpfe_dev); <------><------><------>videobuf_streamoff(&vpfe_dev->buffer_queue); <------><------>} <------><------>vpfe_dev->io_usrs = 0; <------><------>vpfe_dev->numbuffers = config_params.numbuffers; <------><------>videobuf_stop(&vpfe_dev->buffer_queue); <------><------>videobuf_mmap_free(&vpfe_dev->buffer_queue); <------>} <------>/* Decrement device usrs counter */ <------>vpfe_dev->usrs--; <------>v4l2_fh_del(&fh->fh); <------>v4l2_fh_exit(&fh->fh); <------>/* If this is the last file handle */ <------>if (!vpfe_dev->usrs) { <------><------>vpfe_dev->initialized = 0; <------><------>if (ccdc_dev->hw_ops.close) <------><------><------>ccdc_dev->hw_ops.close(vpfe_dev->pdev); <------><------>module_put(ccdc_dev->owner); <------>} <------>mutex_unlock(&vpfe_dev->lock); <------>file->private_data = NULL; <------>/* Free memory allocated to file handle object */ <------>kfree(fh); <------>return 0; } /* * vpfe_mmap : It is used to map kernel space buffers * into user spaces */ static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) { <------>/* Get the device object and file handle object */ <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); <------>return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); } /* * vpfe_poll: It is used for select/poll system call */ static __poll_t vpfe_poll(struct file *file, poll_table *wait) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); <------>if (vpfe_dev->started) <------><------>return videobuf_poll_stream(file, <------><------><------><------><------> &vpfe_dev->buffer_queue, wait); <------>return 0; } /* vpfe capture driver file operations */ static const struct v4l2_file_operations vpfe_fops = { <------>.owner = THIS_MODULE, <------>.open = vpfe_open, <------>.release = vpfe_release, <------>.unlocked_ioctl = video_ioctl2, <------>.mmap = vpfe_mmap, <------>.poll = vpfe_poll }; /* * vpfe_check_format() * This function adjust the input pixel format as per hardware * capabilities and update the same in pixfmt. * Following algorithm used :- * * If given pixformat is not in the vpfe list of pix formats or not * supported by the hardware, current value of pixformat in the device * is used * If given field is not supported, then current field is used. If field * is different from current, then it is matched with that from sub device. * Minimum height is 2 lines for interlaced or tb field and 1 line for * progressive. Maximum height is clamped to active active lines of scan * Minimum width is 32 bytes in memory and width is clamped to active * pixels of scan. * bytesperline is a multiple of 32. */ static const struct vpfe_pixel_format * <------>vpfe_check_format(struct vpfe_device *vpfe_dev, <------><------><------> struct v4l2_pix_format *pixfmt) { <------>u32 min_height = 1, min_width = 32, max_width, max_height; <------>const struct vpfe_pixel_format *vpfe_pix_fmt; <------>u32 pix; <------>int temp, found; <------>vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); <------>if (!vpfe_pix_fmt) { <------><------>/* <------><------> * use current pixel format in the vpfe device. We <------><------> * will find this pix format in the table <------><------> */ <------><------>pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; <------><------>vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); <------>} <------>/* check if hw supports it */ <------>temp = 0; <------>found = 0; <------>while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { <------><------>if (vpfe_pix_fmt->pixelformat == pix) { <------><------><------>found = 1; <------><------><------>break; <------><------>} <------><------>temp++; <------>} <------>if (!found) { <------><------>/* use current pixel format */ <------><------>pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; <------><------>/* <------><------> * Since this is currently used in the vpfe device, we <------><------> * will find this pix format in the table <------><------> */ <------><------>vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); <------>} <------>/* check what field format is supported */ <------>if (pixfmt->field == V4L2_FIELD_ANY) { <------><------>/* if field is any, use current value as default */ <------><------>pixfmt->field = vpfe_dev->fmt.fmt.pix.field; <------>} <------>/* <------> * if field is not same as current field in the vpfe device <------> * try matching the field with the sub device field <------> */ <------>if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { <------><------>/* <------><------> * If field value is not in the supported fields, use current <------><------> * field used in the device as default <------><------> */ <------><------>switch (pixfmt->field) { <------><------>case V4L2_FIELD_INTERLACED: <------><------>case V4L2_FIELD_SEQ_TB: <------><------><------>/* if sub device is supporting progressive, use that */ <------><------><------>if (!vpfe_dev->std_info.frame_format) <------><------><------><------>pixfmt->field = V4L2_FIELD_NONE; <------><------><------>break; <------><------>case V4L2_FIELD_NONE: <------><------><------>if (vpfe_dev->std_info.frame_format) <------><------><------><------>pixfmt->field = V4L2_FIELD_INTERLACED; <------><------><------>break; <------><------>default: <------><------><------>/* use current field as default */ <------><------><------>pixfmt->field = vpfe_dev->fmt.fmt.pix.field; <------><------><------>break; <------><------>} <------>} <------>/* Now adjust image resolutions supported */ <------>if (pixfmt->field == V4L2_FIELD_INTERLACED || <------> pixfmt->field == V4L2_FIELD_SEQ_TB) <------><------>min_height = 2; <------>max_width = vpfe_dev->std_info.active_pixels; <------>max_height = vpfe_dev->std_info.active_lines; <------>min_width /= vpfe_pix_fmt->bpp; <------>v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", <------><------> pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); <------>pixfmt->width = clamp((pixfmt->width), min_width, max_width); <------>pixfmt->height = clamp((pixfmt->height), min_height, max_height); <------>/* If interlaced, adjust height to be a multiple of 2 */ <------>if (pixfmt->field == V4L2_FIELD_INTERLACED) <------><------>pixfmt->height &= (~1); <------>/* <------> * recalculate bytesperline and sizeimage since width <------> * and height might have changed <------> */ <------>pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) <------><------><------><------>& ~31); <------>if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) <------><------>pixfmt->sizeimage = <------><------><------>pixfmt->bytesperline * pixfmt->height + <------><------><------>((pixfmt->bytesperline * pixfmt->height) >> 1); <------>else <------><------>pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; <------>v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height = %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", <------><------> pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, <------><------> pixfmt->bytesperline, pixfmt->sizeimage); <------>return vpfe_pix_fmt; } static int vpfe_querycap(struct file *file, void *priv, <------><------><------> struct v4l2_capability *cap) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); <------>strscpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); <------>strscpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); <------>strscpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); <------>return 0; } static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, <------><------><------><------>struct v4l2_format *fmt) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); <------>/* Fill in the information about format */ <------>*fmt = vpfe_dev->fmt; <------>return 0; } static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, <------><------><------><------> struct v4l2_fmtdesc *fmt) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>const struct vpfe_pixel_format *pix_fmt; <------>u32 pix; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); <------>if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) <------><------>return -EINVAL; <------>/* Fill in the information about format */ <------>pix_fmt = vpfe_lookup_pix_format(pix); <------>if (pix_fmt) { <------><------>fmt->pixelformat = pix_fmt->pixelformat; <------><------>return 0; <------>} <------>return -EINVAL; } static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, <------><------><------><------>struct v4l2_format *fmt) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>const struct vpfe_pixel_format *pix_fmts; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); <------>/* If streaming is started, return error */ <------>if (vpfe_dev->started) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); <------><------>return -EBUSY; <------>} <------>/* Check for valid frame format */ <------>pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); <------>if (!pix_fmts) <------><------>return -EINVAL; <------>/* store the pixel format in the device object */ <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>/* First detach any IRQ if currently attached */ <------>vpfe_detach_irq(vpfe_dev); <------>vpfe_dev->fmt = *fmt; <------>/* set image capture parameters in the ccdc */ <------>ret = vpfe_config_ccdc_image_format(vpfe_dev); <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, <------><------><------><------> struct v4l2_format *f) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>const struct vpfe_pixel_format *pix_fmts; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); <------>pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); <------>if (!pix_fmts) <------><------>return -EINVAL; <------>return 0; } /* * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a * given app input index */ static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, <------><------><------><------><------>int *subdev_index, <------><------><------><------><------>int *subdev_input_index, <------><------><------><------><------>int app_input_index) { <------>struct vpfe_config *cfg = vpfe_dev->cfg; <------>struct vpfe_subdev_info *sdinfo; <------>int i, j = 0; <------>for (i = 0; i < cfg->num_subdevs; i++) { <------><------>sdinfo = &cfg->sub_devs[i]; <------><------>if (app_input_index < (j + sdinfo->num_inputs)) { <------><------><------>*subdev_index = i; <------><------><------>*subdev_input_index = app_input_index - j; <------><------><------>return 0; <------><------>} <------><------>j += sdinfo->num_inputs; <------>} <------>return -EINVAL; } /* * vpfe_get_app_input - Get app input index for a given subdev input index * driver stores the input index of the current sub device and translate it * when application request the current input */ static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, <------><------><------><------> int *app_input_index) { <------>struct vpfe_config *cfg = vpfe_dev->cfg; <------>struct vpfe_subdev_info *sdinfo; <------>int i, j = 0; <------>for (i = 0; i < cfg->num_subdevs; i++) { <------><------>sdinfo = &cfg->sub_devs[i]; <------><------>if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { <------><------><------>if (vpfe_dev->current_input >= sdinfo->num_inputs) <------><------><------><------>return -1; <------><------><------>*app_input_index = j + vpfe_dev->current_input; <------><------><------>return 0; <------><------>} <------><------>j += sdinfo->num_inputs; <------>} <------>return -EINVAL; } static int vpfe_enum_input(struct file *file, void *priv, <------><------><------><------> struct v4l2_input *inp) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_subdev_info *sdinfo; <------>int subdev, index ; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); <------>if (vpfe_get_subdev_input_index(vpfe_dev, <------><------><------><------><------>&subdev, <------><------><------><------><------>&index, <------><------><------><------><------>inp->index) < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "input information not found for the subdev\n"); <------><------>return -EINVAL; <------>} <------>sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; <------>*inp = sdinfo->inputs[index]; <------>return 0; } static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); <------>return vpfe_get_app_input_index(vpfe_dev, index); } static int vpfe_s_input(struct file *file, void *priv, unsigned int index) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct v4l2_subdev *sd; <------>struct vpfe_subdev_info *sdinfo; <------>int subdev_index, inp_index; <------>struct vpfe_route *route; <------>u32 input, output; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>/* <------> * If streaming is started return device busy <------> * error <------> */ <------>if (vpfe_dev->started) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); <------><------>ret = -EBUSY; <------><------>goto unlock_out; <------>} <------>ret = vpfe_get_subdev_input_index(vpfe_dev, <------><------><------><------><------> &subdev_index, <------><------><------><------><------> &inp_index, <------><------><------><------><------> index); <------>if (ret < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); <------><------>goto unlock_out; <------>} <------>sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; <------>sd = vpfe_dev->sd[subdev_index]; <------>route = &sdinfo->routes[inp_index]; <------>if (route && sdinfo->can_route) { <------><------>input = route->input; <------><------>output = route->output; <------>} else { <------><------>input = 0; <------><------>output = 0; <------>} <------>if (sd) <------><------>ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0); <------>if (ret) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------>"vpfe_doioctl:error in setting input in decoder\n"); <------><------>ret = -EINVAL; <------><------>goto unlock_out; <------>} <------>vpfe_dev->current_subdev = sdinfo; <------>if (sd) <------><------>vpfe_dev->v4l2_dev.ctrl_handler = sd->ctrl_handler; <------>vpfe_dev->current_input = index; <------>vpfe_dev->std_index = 0; <------>/* set the bus/interface parameter for the sub device in ccdc */ <------>ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); <------>if (ret) <------><------>goto unlock_out; <------>/* set the default image parameters in the device */ <------>ret = vpfe_config_image_format(vpfe_dev, <------><------><------><------>vpfe_standards[vpfe_dev->std_index].std_id); unlock_out: <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_subdev_info *sdinfo; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>sdinfo = vpfe_dev->current_subdev; <------>if (ret) <------><------>return ret; <------>/* Call querystd function of decoder device */ <------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, <------><------><------><------><------> video, querystd, std_id); <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_subdev_info *sdinfo; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); <------>/* Call decoder driver function to set the standard */ <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>sdinfo = vpfe_dev->current_subdev; <------>/* If streaming is started, return device busy error */ <------>if (vpfe_dev->started) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); <------><------>ret = -EBUSY; <------><------>goto unlock_out; <------>} <------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, <------><------><------><------><------> video, s_std, std_id); <------>if (ret < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); <------><------>goto unlock_out; <------>} <------>ret = vpfe_config_image_format(vpfe_dev, std_id); unlock_out: <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); <------>*std_id = vpfe_standards[vpfe_dev->std_index].std_id; <------>return 0; } /* * Videobuf operations */ static int vpfe_videobuf_setup(struct videobuf_queue *vq, <------><------><------><------>unsigned int *count, <------><------><------><------>unsigned int *size) { <------>struct vpfe_fh *fh = vq->priv_data; <------>struct vpfe_device *vpfe_dev = fh->vpfe_dev; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); <------>*size = vpfe_dev->fmt.fmt.pix.sizeimage; <------>if (vpfe_dev->memory == V4L2_MEMORY_MMAP && <------><------>vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize) <------><------>*size = config_params.device_bufsize; <------>if (*count < config_params.min_numbuffers) <------><------>*count = config_params.min_numbuffers; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, <------><------>"count=%d, size=%d\n", *count, *size); <------>return 0; } static int vpfe_videobuf_prepare(struct videobuf_queue *vq, <------><------><------><------>struct videobuf_buffer *vb, <------><------><------><------>enum v4l2_field field) { <------>struct vpfe_fh *fh = vq->priv_data; <------>struct vpfe_device *vpfe_dev = fh->vpfe_dev; <------>unsigned long addr; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); <------>/* If buffer is not initialized, initialize it */ <------>if (VIDEOBUF_NEEDS_INIT == vb->state) { <------><------>vb->width = vpfe_dev->fmt.fmt.pix.width; <------><------>vb->height = vpfe_dev->fmt.fmt.pix.height; <------><------>vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; <------><------>vb->field = field; <------><------>ret = videobuf_iolock(vq, vb, NULL); <------><------>if (ret < 0) <------><------><------>return ret; <------><------>addr = videobuf_to_dma_contig(vb); <------><------>/* Make sure user addresses are aligned to 32 bytes */ <------><------>if (!ALIGN(addr, 32)) <------><------><------>return -EINVAL; <------><------>vb->state = VIDEOBUF_PREPARED; <------>} <------>return 0; } static void vpfe_videobuf_queue(struct videobuf_queue *vq, <------><------><------><------>struct videobuf_buffer *vb) { <------>/* Get the file handle object and device object */ <------>struct vpfe_fh *fh = vq->priv_data; <------>struct vpfe_device *vpfe_dev = fh->vpfe_dev; <------>unsigned long flags; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); <------>/* add the buffer to the DMA queue */ <------>spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); <------>list_add_tail(&vb->queue, &vpfe_dev->dma_queue); <------>spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); <------>/* Change state of the buffer */ <------>vb->state = VIDEOBUF_QUEUED; } static void vpfe_videobuf_release(struct videobuf_queue *vq, <------><------><------><------> struct videobuf_buffer *vb) { <------>struct vpfe_fh *fh = vq->priv_data; <------>struct vpfe_device *vpfe_dev = fh->vpfe_dev; <------>unsigned long flags; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); <------>/* <------> * We need to flush the buffer from the dma queue since <------> * they are de-allocated <------> */ <------>spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); <------>INIT_LIST_HEAD(&vpfe_dev->dma_queue); <------>spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); <------>videobuf_dma_contig_free(vq, vb); <------>vb->state = VIDEOBUF_NEEDS_INIT; } static const struct videobuf_queue_ops vpfe_videobuf_qops = { <------>.buf_setup = vpfe_videobuf_setup, <------>.buf_prepare = vpfe_videobuf_prepare, <------>.buf_queue = vpfe_videobuf_queue, <------>.buf_release = vpfe_videobuf_release, }; /* * vpfe_reqbufs. currently support REQBUF only once opening * the device. */ static int vpfe_reqbufs(struct file *file, void *priv, <------><------><------>struct v4l2_requestbuffers *req_buf) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_fh *fh = file->private_data; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); <------><------>return -EINVAL; <------>} <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>if (vpfe_dev->io_usrs != 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); <------><------>ret = -EBUSY; <------><------>goto unlock_out; <------>} <------>vpfe_dev->memory = req_buf->memory; <------>videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, <------><------><------><------>&vpfe_videobuf_qops, <------><------><------><------>vpfe_dev->pdev, <------><------><------><------>&vpfe_dev->irqlock, <------><------><------><------>req_buf->type, <------><------><------><------>vpfe_dev->fmt.fmt.pix.field, <------><------><------><------>sizeof(struct videobuf_buffer), <------><------><------><------>fh, NULL); <------>fh->io_allowed = 1; <------>vpfe_dev->io_usrs = 1; <------>INIT_LIST_HEAD(&vpfe_dev->dma_queue); <------>ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); unlock_out: <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_querybuf(struct file *file, void *priv, <------><------><------> struct v4l2_buffer *buf) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); <------><------>return -EINVAL; <------>} <------>if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); <------><------>return -EINVAL; <------>} <------>/* Call videobuf_querybuf to get information */ <------>return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); } static int vpfe_qbuf(struct file *file, void *priv, <------><------> struct v4l2_buffer *p) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_fh *fh = file->private_data; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); <------><------>return -EINVAL; <------>} <------>/* <------> * If this file handle is not allowed to do IO, <------> * return error <------> */ <------>if (!fh->io_allowed) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); <------><------>return -EACCES; <------>} <------>return videobuf_qbuf(&vpfe_dev->buffer_queue, p); } static int vpfe_dqbuf(struct file *file, void *priv, <------><------> struct v4l2_buffer *buf) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); <------><------>return -EINVAL; <------>} <------>return videobuf_dqbuf(&vpfe_dev->buffer_queue, <------><------><------><------> buf, file->f_flags & O_NONBLOCK); } /* * vpfe_calculate_offsets : This function calculates buffers offset * for top and bottom field */ static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) { <------>struct v4l2_rect image_win; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); <------>ccdc_dev->hw_ops.get_image_window(&image_win); <------>vpfe_dev->field_off = image_win.height * image_win.width; } /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) { <------>ccdc_dev->hw_ops.enable(1); <------>if (ccdc_dev->hw_ops.enable_out_to_sdram) <------><------>ccdc_dev->hw_ops.enable_out_to_sdram(1); <------>vpfe_dev->started = 1; } /* * vpfe_streamon. Assume the DMA queue is not empty. * application is expected to call QBUF before calling * this ioctl. If not, driver returns error */ static int vpfe_streamon(struct file *file, void *priv, <------><------><------> enum v4l2_buf_type buf_type) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_fh *fh = file->private_data; <------>struct vpfe_subdev_info *sdinfo; <------>unsigned long addr; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); <------><------>return -EINVAL; <------>} <------>/* If file handle is not allowed IO, return error */ <------>if (!fh->io_allowed) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); <------><------>return -EACCES; <------>} <------>sdinfo = vpfe_dev->current_subdev; <------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, <------><------><------><------><------>video, s_stream, 1); <------>if (ret && (ret != -ENOIOCTLCMD)) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); <------><------>return -EINVAL; <------>} <------>/* If buffer queue is empty, return error */ <------>if (list_empty(&vpfe_dev->buffer_queue.stream)) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); <------><------>return -EIO; <------>} <------>/* Call videobuf_streamon to start streaming * in videobuf */ <------>ret = videobuf_streamon(&vpfe_dev->buffer_queue); <------>if (ret) <------><------>return ret; <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>goto streamoff; <------>/* Get the next frame from the buffer queue */ <------>vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, <------><------><------><------><------>struct videobuf_buffer, queue); <------>vpfe_dev->cur_frm = vpfe_dev->next_frm; <------>/* Remove buffer from the buffer queue */ <------>list_del(&vpfe_dev->cur_frm->queue); <------>/* Mark state of the current frame to active */ <------>vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; <------>/* Initialize field_id and started member */ <------>vpfe_dev->field_id = 0; <------>addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); <------>/* Calculate field offset */ <------>vpfe_calculate_offsets(vpfe_dev); <------>if (vpfe_attach_irq(vpfe_dev) < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------> "Error in attaching interrupt handle\n"); <------><------>ret = -EFAULT; <------><------>goto unlock_out; <------>} <------>if (ccdc_dev->hw_ops.configure() < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------> "Error in configuring ccdc\n"); <------><------>ret = -EINVAL; <------><------>goto unlock_out; <------>} <------>ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); <------>vpfe_start_ccdc_capture(vpfe_dev); <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; unlock_out: <------>mutex_unlock(&vpfe_dev->lock); streamoff: <------>videobuf_streamoff(&vpfe_dev->buffer_queue); <------>return ret; } static int vpfe_streamoff(struct file *file, void *priv, <------><------><------> enum v4l2_buf_type buf_type) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct vpfe_fh *fh = file->private_data; <------>struct vpfe_subdev_info *sdinfo; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); <------>if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); <------><------>return -EINVAL; <------>} <------>/* If io is allowed for this file handle, return error */ <------>if (!fh->io_allowed) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); <------><------>return -EACCES; <------>} <------>/* If streaming is not started, return error */ <------>if (!vpfe_dev->started) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); <------><------>return -EINVAL; <------>} <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>vpfe_stop_ccdc_capture(vpfe_dev); <------>vpfe_detach_irq(vpfe_dev); <------>sdinfo = vpfe_dev->current_subdev; <------>ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, <------><------><------><------><------>video, s_stream, 0); <------>if (ret && (ret != -ENOIOCTLCMD)) <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); <------>ret = videobuf_streamoff(&vpfe_dev->buffer_queue); <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } static int vpfe_g_pixelaspect(struct file *file, void *priv, <------><------><------> int type, struct v4l2_fract *f) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_pixelaspect\n"); <------>if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) <------><------>return -EINVAL; <------>/* If std_index is invalid, then just return (== 1:1 aspect) */ <------>if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) <------><------>return 0; <------>*f = vpfe_standards[vpfe_dev->std_index].pixelaspect; <------>return 0; } static int vpfe_g_selection(struct file *file, void *priv, <------><------><------> struct v4l2_selection *sel) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_selection\n"); <------>if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) <------><------>return -EINVAL; <------>switch (sel->target) { <------>case V4L2_SEL_TGT_CROP: <------><------>sel->r = vpfe_dev->crop; <------><------>break; <------>case V4L2_SEL_TGT_CROP_DEFAULT: <------>case V4L2_SEL_TGT_CROP_BOUNDS: <------><------>sel->r.width = vpfe_standards[vpfe_dev->std_index].width; <------><------>sel->r.height = vpfe_standards[vpfe_dev->std_index].height; <------><------>break; <------>default: <------><------>return -EINVAL; <------>} <------>return 0; } static int vpfe_s_selection(struct file *file, void *priv, <------><------><------> struct v4l2_selection *sel) { <------>struct vpfe_device *vpfe_dev = video_drvdata(file); <------>struct v4l2_rect rect = sel->r; <------>int ret; <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_selection\n"); <------>if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || <------> sel->target != V4L2_SEL_TGT_CROP) <------><------>return -EINVAL; <------>if (vpfe_dev->started) { <------><------>/* make sure streaming is not started */ <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------>"Cannot change crop when streaming is ON\n"); <------><------>return -EBUSY; <------>} <------>ret = mutex_lock_interruptible(&vpfe_dev->lock); <------>if (ret) <------><------>return ret; <------>if (rect.top < 0 || rect.left < 0) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, <------><------><------>"doesn't support negative values for top & left\n"); <------><------>ret = -EINVAL; <------><------>goto unlock_out; <------>} <------>/* adjust the width to 16 pixel boundary */ <------>rect.width = ((rect.width + 15) & ~0xf); <------>/* make sure parameters are valid */ <------>if ((rect.left + rect.width > <------><------>vpfe_dev->std_info.active_pixels) || <------> (rect.top + rect.height > <------><------>vpfe_dev->std_info.active_lines)) { <------><------>v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_SELECTION params\n"); <------><------>ret = -EINVAL; <------><------>goto unlock_out; <------>} <------>ccdc_dev->hw_ops.set_image_window(&rect); <------>vpfe_dev->fmt.fmt.pix.width = rect.width; <------>vpfe_dev->fmt.fmt.pix.height = rect.height; <------>vpfe_dev->fmt.fmt.pix.bytesperline = <------><------>ccdc_dev->hw_ops.get_line_length(); <------>vpfe_dev->fmt.fmt.pix.sizeimage = <------><------>vpfe_dev->fmt.fmt.pix.bytesperline * <------><------>vpfe_dev->fmt.fmt.pix.height; <------>vpfe_dev->crop = rect; <------>sel->r = rect; unlock_out: <------>mutex_unlock(&vpfe_dev->lock); <------>return ret; } /* vpfe capture ioctl operations */ static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { <------>.vidioc_querycap = vpfe_querycap, <------>.vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, <------>.vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, <------>.vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, <------>.vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, <------>.vidioc_enum_input = vpfe_enum_input, <------>.vidioc_g_input = vpfe_g_input, <------>.vidioc_s_input = vpfe_s_input, <------>.vidioc_querystd = vpfe_querystd, <------>.vidioc_s_std = vpfe_s_std, <------>.vidioc_g_std = vpfe_g_std, <------>.vidioc_reqbufs = vpfe_reqbufs, <------>.vidioc_querybuf = vpfe_querybuf, <------>.vidioc_qbuf = vpfe_qbuf, <------>.vidioc_dqbuf = vpfe_dqbuf, <------>.vidioc_streamon = vpfe_streamon, <------>.vidioc_streamoff = vpfe_streamoff, <------>.vidioc_g_pixelaspect = vpfe_g_pixelaspect, <------>.vidioc_g_selection = vpfe_g_selection, <------>.vidioc_s_selection = vpfe_s_selection, }; static struct vpfe_device *vpfe_initialize(void) { <------>struct vpfe_device *vpfe_dev; <------>/* Default number of buffers should be 3 */ <------>if ((numbuffers > 0) && <------> (numbuffers < config_params.min_numbuffers)) <------><------>numbuffers = config_params.min_numbuffers; <------>/* <------> * Set buffer size to min buffers size if invalid buffer size is <------> * given <------> */ <------>if (bufsize < config_params.min_bufsize) <------><------>bufsize = config_params.min_bufsize; <------>config_params.numbuffers = numbuffers; <------>if (numbuffers) <------><------>config_params.device_bufsize = bufsize; <------>/* Allocate memory for device objects */ <------>vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); <------>return vpfe_dev; } /* * vpfe_probe : This function creates device entries by register * itself to the V4L2 driver and initializes fields of each * device objects */ static int vpfe_probe(struct platform_device *pdev) { <------>struct vpfe_subdev_info *sdinfo; <------>struct vpfe_config *vpfe_cfg; <------>struct resource *res1; <------>struct vpfe_device *vpfe_dev; <------>struct i2c_adapter *i2c_adap; <------>struct video_device *vfd; <------>int ret, i, j; <------>int num_subdevs = 0; <------>/* Get the pointer to the device object */ <------>vpfe_dev = vpfe_initialize(); <------>if (!vpfe_dev) { <------><------>v4l2_err(pdev->dev.driver, <------><------><------>"Failed to allocate memory for vpfe_dev\n"); <------><------>return -ENOMEM; <------>} <------>vpfe_dev->pdev = &pdev->dev; <------>if (!pdev->dev.platform_data) { <------><------>v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); <------><------>ret = -ENODEV; <------><------>goto probe_free_dev_mem; <------>} <------>vpfe_cfg = pdev->dev.platform_data; <------>vpfe_dev->cfg = vpfe_cfg; <------>if (!vpfe_cfg->ccdc || !vpfe_cfg->card_name || !vpfe_cfg->sub_devs) { <------><------>v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); <------><------>ret = -ENOENT; <------><------>goto probe_free_dev_mem; <------>} <------>/* Allocate memory for ccdc configuration */ <------>ccdc_cfg = kmalloc(sizeof(*ccdc_cfg), GFP_KERNEL); <------>if (!ccdc_cfg) { <------><------>ret = -ENOMEM; <------><------>goto probe_free_dev_mem; <------>} <------>mutex_lock(&ccdc_lock); <------>strscpy(ccdc_cfg->name, vpfe_cfg->ccdc, sizeof(ccdc_cfg->name)); <------>/* Get VINT0 irq resource */ <------>res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); <------>if (!res1) { <------><------>v4l2_err(pdev->dev.driver, <------><------><------> "Unable to get interrupt for VINT0\n"); <------><------>ret = -ENODEV; <------><------>goto probe_free_ccdc_cfg_mem; <------>} <------>vpfe_dev->ccdc_irq0 = res1->start; <------>/* Get VINT1 irq resource */ <------>res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); <------>if (!res1) { <------><------>v4l2_err(pdev->dev.driver, <------><------><------> "Unable to get interrupt for VINT1\n"); <------><------>ret = -ENODEV; <------><------>goto probe_free_ccdc_cfg_mem; <------>} <------>vpfe_dev->ccdc_irq1 = res1->start; <------>ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0, <------><------><------> "vpfe_capture0", vpfe_dev); <------>if (0 != ret) { <------><------>v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); <------><------>goto probe_free_ccdc_cfg_mem; <------>} <------>vfd = &vpfe_dev->video_dev; <------>/* Initialize field of video device */ <------>vfd->release = video_device_release_empty; <------>vfd->fops = &vpfe_fops; <------>vfd->ioctl_ops = &vpfe_ioctl_ops; <------>vfd->tvnorms = 0; <------>vfd->v4l2_dev = &vpfe_dev->v4l2_dev; <------>vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; <------>snprintf(vfd->name, sizeof(vfd->name), <------><------> "%s_V%d.%d.%d", <------><------> CAPTURE_DRV_NAME, <------><------> (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, <------><------> (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, <------><------> (VPFE_CAPTURE_VERSION_CODE) & 0xff); <------>ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); <------>if (ret) { <------><------>v4l2_err(pdev->dev.driver, <------><------><------>"Unable to register v4l2 device.\n"); <------><------>goto probe_out_release_irq; <------>} <------>v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); <------>spin_lock_init(&vpfe_dev->irqlock); <------>spin_lock_init(&vpfe_dev->dma_queue_lock); <------>mutex_init(&vpfe_dev->lock); <------>/* Initialize field of the device objects */ <------>vpfe_dev->numbuffers = config_params.numbuffers; <------>/* register video device */ <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, <------><------>"trying to register vpfe device.\n"); <------>v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, <------><------>"video_dev=%p\n", &vpfe_dev->video_dev); <------>vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; <------>ret = video_register_device(&vpfe_dev->video_dev, <------><------><------><------> VFL_TYPE_VIDEO, -1); <------>if (ret) { <------><------>v4l2_err(pdev->dev.driver, <------><------><------>"Unable to register video device.\n"); <------><------>goto probe_out_v4l2_unregister; <------>} <------>v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); <------>/* set the driver data in platform device */ <------>platform_set_drvdata(pdev, vpfe_dev); <------>/* set driver private data */ <------>video_set_drvdata(&vpfe_dev->video_dev, vpfe_dev); <------>i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); <------>num_subdevs = vpfe_cfg->num_subdevs; <------>vpfe_dev->sd = kmalloc_array(num_subdevs, <------><------><------><------> sizeof(*vpfe_dev->sd), <------><------><------><------> GFP_KERNEL); <------>if (!vpfe_dev->sd) { <------><------>ret = -ENOMEM; <------><------>goto probe_out_video_unregister; <------>} <------>for (i = 0; i < num_subdevs; i++) { <------><------>struct v4l2_input *inps; <------><------>sdinfo = &vpfe_cfg->sub_devs[i]; <------><------>/* Load up the subdevice */ <------><------>vpfe_dev->sd[i] = <------><------><------>v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, <------><------><------><------><------><------> i2c_adap, <------><------><------><------><------><------> &sdinfo->board_info, <------><------><------><------><------><------> NULL); <------><------>if (vpfe_dev->sd[i]) { <------><------><------>v4l2_info(&vpfe_dev->v4l2_dev, <------><------><------><------> "v4l2 sub device %s registered\n", <------><------><------><------> sdinfo->name); <------><------><------>vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; <------><------><------>/* update tvnorms from the sub devices */ <------><------><------>for (j = 0; j < sdinfo->num_inputs; j++) { <------><------><------><------>inps = &sdinfo->inputs[j]; <------><------><------><------>vfd->tvnorms |= inps->std; <------><------><------>} <------><------>} else { <------><------><------>v4l2_info(&vpfe_dev->v4l2_dev, <------><------><------><------> "v4l2 sub device %s register fails\n", <------><------><------><------> sdinfo->name); <------><------><------>ret = -ENXIO; <------><------><------>goto probe_sd_out; <------><------>} <------>} <------>/* set first sub device as current one */ <------>vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; <------>vpfe_dev->v4l2_dev.ctrl_handler = vpfe_dev->sd[0]->ctrl_handler; <------>/* We have at least one sub device to work with */ <------>mutex_unlock(&ccdc_lock); <------>return 0; probe_sd_out: <------>kfree(vpfe_dev->sd); probe_out_video_unregister: <------>video_unregister_device(&vpfe_dev->video_dev); probe_out_v4l2_unregister: <------>v4l2_device_unregister(&vpfe_dev->v4l2_dev); probe_out_release_irq: <------>free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); probe_free_ccdc_cfg_mem: <------>kfree(ccdc_cfg); <------>mutex_unlock(&ccdc_lock); probe_free_dev_mem: <------>kfree(vpfe_dev); <------>return ret; } /* * vpfe_remove : It un-register device from V4L2 driver */ static int vpfe_remove(struct platform_device *pdev) { <------>struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); <------>v4l2_info(pdev->dev.driver, "vpfe_remove\n"); <------>free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); <------>kfree(vpfe_dev->sd); <------>v4l2_device_unregister(&vpfe_dev->v4l2_dev); <------>video_unregister_device(&vpfe_dev->video_dev); <------>kfree(vpfe_dev); <------>kfree(ccdc_cfg); <------>return 0; } static int vpfe_suspend(struct device *dev) { <------>return 0; } static int vpfe_resume(struct device *dev) { <------>return 0; } static const struct dev_pm_ops vpfe_dev_pm_ops = { <------>.suspend = vpfe_suspend, <------>.resume = vpfe_resume, }; static struct platform_driver vpfe_driver = { <------>.driver = { <------><------>.name = CAPTURE_DRV_NAME, <------><------>.pm = &vpfe_dev_pm_ops, <------>}, <------>.probe = vpfe_probe, <------>.remove = vpfe_remove, }; module_platform_driver(vpfe_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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