diff options
Diffstat (limited to 'drivers/media/video/davinci/vpfe_capture.c')
| -rw-r--r-- | drivers/media/video/davinci/vpfe_capture.c | 2079 |
1 files changed, 0 insertions, 2079 deletions
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c deleted file mode 100644 index 843b138..0000000 --- a/drivers/media/video/davinci/vpfe_capture.c +++ /dev/null @@ -1,2079 +0,0 @@ -/* - * Copyright (C) 2008-2009 Texas Instruments Inc - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * 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 struct ccdc_hw_device *ccdc_dev; -/* lock for accessing ccdc information */ -static DEFINE_MUTEX(ccdc_lock); -/* ccdc configuration */ -static struct ccdc_config *ccdc_cfg; - -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[] = { - { - .fmtdesc = { - .index = 0, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "Bayer GrRBGb 8bit A-Law compr.", - .pixelformat = V4L2_PIX_FMT_SBGGR8, - }, - .bpp = 1, - }, - { - .fmtdesc = { - .index = 1, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "Bayer GrRBGb - 16bit", - .pixelformat = V4L2_PIX_FMT_SBGGR16, - }, - .bpp = 2, - }, - { - .fmtdesc = { - .index = 2, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "Bayer GrRBGb 8bit DPCM compr.", - .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, - }, - .bpp = 1, - }, - { - .fmtdesc = { - .index = 3, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "YCbCr 4:2:2 Interleaved UYVY", - .pixelformat = V4L2_PIX_FMT_UYVY, - }, - .bpp = 2, - }, - { - .fmtdesc = { - .index = 4, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "YCbCr 4:2:2 Interleaved YUYV", - .pixelformat = V4L2_PIX_FMT_YUYV, - }, - .bpp = 2, - }, - { - .fmtdesc = { - .index = 5, - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .description = "Y/CbCr 4:2:0 - Semi planar", - .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].fmtdesc.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(struct ccdc_hw_device *dev) -{ - int ret = 0; - printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); - - BUG_ON(!dev->hw_ops.open); - BUG_ON(!dev->hw_ops.enable); - BUG_ON(!dev->hw_ops.set_hw_if_params); - BUG_ON(!dev->hw_ops.configure); - BUG_ON(!dev->hw_ops.set_buftype); - BUG_ON(!dev->hw_ops.get_buftype); - BUG_ON(!dev->hw_ops.enum_pix); - BUG_ON(!dev->hw_ops.set_frame_format); - BUG_ON(!dev->hw_ops.get_frame_format); - BUG_ON(!dev->hw_ops.get_pixel_format); - BUG_ON(!dev->hw_ops.set_pixel_format); - BUG_ON(!dev->hw_ops.set_image_window); - BUG_ON(!dev->hw_ops.get_image_window); - BUG_ON(!dev->hw_ops.get_line_length); - BUG_ON(!dev->hw_ops.getfid); - - mutex_lock(&ccdc_lock); - if (NULL == 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(struct ccdc_hw_device *dev) -{ - if (NULL == 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); - return; -} -EXPORT_SYMBOL(vpfe_unregister_ccdc_device); - -/* - * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings - */ -static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev, - struct v4l2_format *f) -{ - struct v4l2_rect image_win; - enum ccdc_buftype buf_type; - enum ccdc_frmfmt frm_fmt; - - memset(f, 0, sizeof(*f)); - f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - ccdc_dev->hw_ops.get_image_window(&image_win); - f->fmt.pix.width = image_win.width; - f->fmt.pix.height = image_win.height; - f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length(); - f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * - f->fmt.pix.height; - buf_type = ccdc_dev->hw_ops.get_buftype(); - f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format(); - frm_fmt = ccdc_dev->hw_ops.get_frame_format(); - if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) - f->fmt.pix.field = V4L2_FIELD_NONE; - else if (frm_fmt == CCDC_FRMFMT_INTERLACED) { - if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) - f->fmt.pix.field = V4L2_FIELD_INTERLACED; - else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) - f->fmt.pix.field = V4L2_FIELD_SEQ_TB; - else { - v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n"); - return -EINVAL; - } - } else { - v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n"); - return -EINVAL; - } - return 0; -} - -/* - * 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 support g_mbus_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, - const v4l2_std_id *std_id) -{ - struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; - struct v4l2_mbus_framefmt mbus_fmt; - struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; - int i, ret = 0; - - 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, - V4L2_MBUS_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, - V4L2_MBUS_FMT_SBGGR8_1X8); - } - - /* if sub device supports g_mbus_fmt, override the defaults */ - ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, - sdinfo->grp_id, video, g_mbus_fmt, &mbus_fmt); - - if (ret && ret != -ENOIOCTLCMD) { - v4l2_err(&vpfe_dev->v4l2_dev, - "error in getting g_mbus_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 */ - if (!ret) { - pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); - pix->sizeimage = pix->bytesperline * pix->height; - } - return ret; -} - -static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) -{ - int ret = 0; - - /* 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 (NULL == 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 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(struct vpfe_fh), GFP_KERNEL); - if (NULL == fh) { - v4l2_err(&vpfe_dev->v4l2_dev, - "unable to allocate memory for file handle object\n"); - return -ENOMEM; - } - /* store pointer to fh in private_data member of file */ - file->private_data = fh; - fh->vpfe_dev = vpfe_dev; - 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); - return -ENODEV; - } - } - /* Increment device usrs counter */ - vpfe_dev->usrs++; - /* Set io_allowed member to false */ - fh->io_allowed = 0; - /* Initialize priority of this instance to default priority */ - fh->prio = V4L2_PRIORITY_UNSET; - v4l2_prio_open(&vpfe_dev->prio, &fh->prio); - 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) -{ - struct timeval timevalue; - - do_gettimeofday(&timevalue); - vpfe_dev->cur_frm->ts = timevalue; - 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 (NULL != 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, - IRQF_DISABLED, "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; - } - - /* Decrement device usrs counter */ - vpfe_dev->usrs--; - /* Close the priority */ - v4l2_prio_close(&vpfe_dev->prio, fh->prio); - /* 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 unsigned int 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 (NULL == 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->fmtdesc.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"); - - cap->version = VPFE_CAPTURE_VERSION_CODE; - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); - strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); - strlcpy(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); - int ret = 0; - - 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 ret; -} - -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; - int temp_index; - 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 (NULL != pix_fmt) { - temp_index = fmt->index; - *fmt = pix_fmt->fmtdesc; - fmt->index = temp_index; - 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 = 0; - - 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 (NULL == 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 (NULL == 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]; - memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input)); - 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 vpfe_subdev_info *sdinfo; - int subdev_index, inp_index; - struct vpfe_route *route; - u32 input = 0, output = 0; - int ret = -EINVAL; - - 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; - } - - if (vpfe_get_subdev_input_index(vpfe_dev, - &subdev_index, - &inp_index, - index) < 0) { - v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); - goto unlock_out; - } - - sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; - route = &sdinfo->routes[inp_index]; - if (route && sdinfo->can_route) { - input = route->input; - output = route->output; - } - - ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, - 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; - 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 = 0; - - 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 = 0; - - 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, - core, 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 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 = 0; - - 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); -} - -static int vpfe_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qctrl) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - struct vpfe_subdev_info *sdinfo; - - sdinfo = vpfe_dev->current_subdev; - - return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, - core, queryctrl, qctrl); - -} - -static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - struct vpfe_subdev_info *sdinfo; - - sdinfo = vpfe_dev->current_subdev; - - return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, - core, g_ctrl, ctrl); -} - -static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - struct vpfe_subdev_info *sdinfo; - - sdinfo = vpfe_dev->current_subdev; - - return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, - core, s_ctrl, ctrl); -} - -/* - * 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 = 0; - - 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: - ret = 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 = 0; - - 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_cropcap(struct file *file, void *priv, - struct v4l2_cropcap *crop) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); - - if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) - return -EINVAL; - - memset(crop, 0, sizeof(struct v4l2_cropcap)); - crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - crop->bounds.width = crop->defrect.width = - vpfe_standards[vpfe_dev->std_index].width; - crop->bounds.height = crop->defrect.height = - vpfe_standards[vpfe_dev->std_index].height; - crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; - return 0; -} - -static int vpfe_g_crop(struct file *file, void *priv, - struct v4l2_crop *crop) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n"); - - crop->c = vpfe_dev->crop; - return 0; -} - -static int vpfe_s_crop(struct file *file, void *priv, - struct v4l2_crop *crop) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - int ret = 0; - - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n"); - - 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 (crop->c.top < 0 || crop->c.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 */ - crop->c.width = ((crop->c.width + 15) & ~0xf); - - /* make sure parameters are valid */ - if ((crop->c.left + crop->c.width > - vpfe_dev->std_info.active_pixels) || - (crop->c.top + crop->c.height > - vpfe_dev->std_info.active_lines)) { - v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n"); - ret = -EINVAL; - goto unlock_out; - } - ccdc_dev->hw_ops.set_image_window(&crop->c); - vpfe_dev->fmt.fmt.pix.width = crop->c.width; - vpfe_dev->fmt.fmt.pix.height = crop->c.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 = crop->c; -unlock_out: - mutex_unlock(&vpfe_dev->lock); - return ret; -} - - -static long vpfe_param_handler(struct file *file, void *priv, - bool valid_prio, int cmd, void *param) -{ - struct vpfe_device *vpfe_dev = video_drvdata(file); - int ret = 0; - - v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n"); - - if (vpfe_dev->started) { - /* only allowed if streaming is not started */ - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, - "device already started\n"); - return -EBUSY; - } - - ret = mutex_lock_interruptible(&vpfe_dev->lock); - if (ret) - return ret; - - switch (cmd) { - case VPFE_CMD_S_CCDC_RAW_PARAMS: - v4l2_warn(&vpfe_dev->v4l2_dev, - "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n"); - if (ccdc_dev->hw_ops.set_params) { - ret = ccdc_dev->hw_ops.set_params(param); - if (ret) { - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, - "Error setting parameters in CCDC\n"); - goto unlock_out; - } - if (vpfe_get_ccdc_image_format(vpfe_dev, - &vpfe_dev->fmt) < 0) { - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, - "Invalid image format at CCDC\n"); - goto unlock_out; - } - } else { - ret = -EINVAL; - v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, - "VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n"); - } - break; - default: - ret = -ENOTTY; - } -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_queryctrl = vpfe_queryctrl, - .vidioc_g_ctrl = vpfe_g_ctrl, - .vidioc_s_ctrl = vpfe_s_ctrl, - .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_cropcap = vpfe_cropcap, - .vidioc_g_crop = vpfe_g_crop, - .vidioc_s_crop = vpfe_s_crop, - .vidioc_default = vpfe_param_handler, -}; - -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 __devinit 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 = -ENOMEM, 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 ret; - } - - vpfe_dev->pdev = &pdev->dev; - - if (NULL == 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 (NULL == vpfe_cfg->ccdc || - NULL == vpfe_cfg->card_name || - NULL == 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(struct ccdc_config), GFP_KERNEL); - if (NULL == ccdc_cfg) { - v4l2_err(pdev->dev.driver, - "Memory allocation failed for ccdc_cfg\n"); - goto probe_free_lock; - } - - mutex_lock(&ccdc_lock); - - strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); - /* 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, IRQF_DISABLED, - "vpfe_capture0", vpfe_dev); - - if (0 != ret) { - v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); - goto probe_free_ccdc_cfg_mem; - } - - /* Allocate memory for video device */ - vfd = video_device_alloc(); - if (NULL == vfd) { - ret = -ENOMEM; - v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); - goto probe_out_release_irq; - } - - /* Initialize field of video device */ - vfd->release = video_device_release; - vfd->fops = &vpfe_fops; - vfd->ioctl_ops = &vpfe_ioctl_ops; - vfd->tvnorms = 0; - vfd->current_norm = V4L2_STD_PAL; - vfd->v4l2_dev = &vpfe_dev->v4l2_dev; - 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); - /* Set video_dev to the video device */ - vpfe_dev->video_dev = vfd; - - 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_video_release; - } - 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; - - /* Initialize prio member of device object */ - v4l2_prio_init(&vpfe_dev->prio); - /* 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=%x\n", (int)&vpfe_dev->video_dev); - vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - ret = video_register_device(vpfe_dev->video_dev, - VFL_TYPE_GRABBER, -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(sizeof(struct v4l2_subdev *) * num_subdevs, - GFP_KERNEL); - if (NULL == vpfe_dev->sd) { - v4l2_err(&vpfe_dev->v4l2_dev, - "unable to allocate memory for subdevice pointers\n"); - 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); - goto probe_sd_out; - } - } - - /* set first sub device as current one */ - vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; - - /* 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_video_release: - if (!video_is_registered(vpfe_dev->video_dev)) - video_device_release(vpfe_dev->video_dev); -probe_out_release_irq: - free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); -probe_free_ccdc_cfg_mem: - kfree(ccdc_cfg); -probe_free_lock: - mutex_unlock(&ccdc_lock); -probe_free_dev_mem: - kfree(vpfe_dev); - return ret; -} - -/* - * vpfe_remove : It un-register device from V4L2 driver - */ -static int __devexit 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, - .owner = THIS_MODULE, - .pm = &vpfe_dev_pm_ops, - }, - .probe = vpfe_probe, - .remove = __devexit_p(vpfe_remove), -}; - -module_platform_driver(vpfe_driver); |
