diff options
Diffstat (limited to 'drivers/media/video/omap/omap_vout.c')
| -rw-r--r-- | drivers/media/video/omap/omap_vout.c | 2290 |
1 files changed, 0 insertions, 2290 deletions
diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c deleted file mode 100644 index 409da0f..0000000 --- a/drivers/media/video/omap/omap_vout.c +++ /dev/null @@ -1,2290 +0,0 @@ -/* - * omap_vout.c - * - * Copyright (C) 2005-2010 Texas Instruments. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - * - * Leveraged code from the OMAP2 camera driver - * Video-for-Linux (Version 2) camera capture driver for - * the OMAP24xx camera controller. - * - * Author: Andy Lowe (source@mvista.com) - * - * Copyright (C) 2004 MontaVista Software, Inc. - * Copyright (C) 2010 Texas Instruments. - * - * History: - * 20-APR-2006 Khasim Modified VRFB based Rotation, - * The image data is always read from 0 degree - * view and written - * to the virtual space of desired rotation angle - * 4-DEC-2006 Jian Changed to support better memory management - * - * 17-Nov-2008 Hardik Changed driver to use video_ioctl2 - * - * 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface - * - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/vmalloc.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <linux/videodev2.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> - -#include <media/videobuf-dma-contig.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> - -#include <plat/cpu.h> -#include <plat/dma.h> -#include <plat/vrfb.h> -#include <video/omapdss.h> - -#include "omap_voutlib.h" -#include "omap_voutdef.h" -#include "omap_vout_vrfb.h" - -MODULE_AUTHOR("Texas Instruments"); -MODULE_DESCRIPTION("OMAP Video for Linux Video out driver"); -MODULE_LICENSE("GPL"); - -/* Driver Configuration macros */ -#define VOUT_NAME "omap_vout" - -enum omap_vout_channels { - OMAP_VIDEO1, - OMAP_VIDEO2, -}; - -static struct videobuf_queue_ops video_vbq_ops; -/* Variables configurable through module params*/ -static u32 video1_numbuffers = 3; -static u32 video2_numbuffers = 3; -static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE; -static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE; -static bool vid1_static_vrfb_alloc; -static bool vid2_static_vrfb_alloc; -static bool debug; - -/* Module parameters */ -module_param(video1_numbuffers, uint, S_IRUGO); -MODULE_PARM_DESC(video1_numbuffers, - "Number of buffers to be allocated at init time for Video1 device."); - -module_param(video2_numbuffers, uint, S_IRUGO); -MODULE_PARM_DESC(video2_numbuffers, - "Number of buffers to be allocated at init time for Video2 device."); - -module_param(video1_bufsize, uint, S_IRUGO); -MODULE_PARM_DESC(video1_bufsize, - "Size of the buffer to be allocated for video1 device"); - -module_param(video2_bufsize, uint, S_IRUGO); -MODULE_PARM_DESC(video2_bufsize, - "Size of the buffer to be allocated for video2 device"); - -module_param(vid1_static_vrfb_alloc, bool, S_IRUGO); -MODULE_PARM_DESC(vid1_static_vrfb_alloc, - "Static allocation of the VRFB buffer for video1 device"); - -module_param(vid2_static_vrfb_alloc, bool, S_IRUGO); -MODULE_PARM_DESC(vid2_static_vrfb_alloc, - "Static allocation of the VRFB buffer for video2 device"); - -module_param(debug, bool, S_IRUGO); -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - -/* list of image formats supported by OMAP2 video pipelines */ -static const struct v4l2_fmtdesc omap_formats[] = { - { - /* Note: V4L2 defines RGB565 as: - * - * Byte 0 Byte 1 - * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3 - * - * We interpret RGB565 as: - * - * Byte 0 Byte 1 - * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3 - */ - .description = "RGB565, le", - .pixelformat = V4L2_PIX_FMT_RGB565, - }, - { - /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use - * this for RGB24 unpack mode, the last 8 bits are ignored - * */ - .description = "RGB32, le", - .pixelformat = V4L2_PIX_FMT_RGB32, - }, - { - /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use - * this for RGB24 packed mode - * - */ - .description = "RGB24, le", - .pixelformat = V4L2_PIX_FMT_RGB24, - }, - { - .description = "YUYV (YUV 4:2:2), packed", - .pixelformat = V4L2_PIX_FMT_YUYV, - }, - { - .description = "UYVY, packed", - .pixelformat = V4L2_PIX_FMT_UYVY, - }, -}; - -#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats)) - -/* - * Try format - */ -static int omap_vout_try_format(struct v4l2_pix_format *pix) -{ - int ifmt, bpp = 0; - - pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT, - (u32)VID_MAX_HEIGHT); - pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH); - - for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) { - if (pix->pixelformat == omap_formats[ifmt].pixelformat) - break; - } - - if (ifmt == NUM_OUTPUT_FORMATS) - ifmt = 0; - - pix->pixelformat = omap_formats[ifmt].pixelformat; - pix->field = V4L2_FIELD_ANY; - pix->priv = 0; - - switch (pix->pixelformat) { - case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_UYVY: - default: - pix->colorspace = V4L2_COLORSPACE_JPEG; - bpp = YUYV_BPP; - break; - case V4L2_PIX_FMT_RGB565: - case V4L2_PIX_FMT_RGB565X: - pix->colorspace = V4L2_COLORSPACE_SRGB; - bpp = RGB565_BPP; - break; - case V4L2_PIX_FMT_RGB24: - pix->colorspace = V4L2_COLORSPACE_SRGB; - bpp = RGB24_BPP; - break; - case V4L2_PIX_FMT_RGB32: - case V4L2_PIX_FMT_BGR32: - pix->colorspace = V4L2_COLORSPACE_SRGB; - bpp = RGB32_BPP; - break; - } - pix->bytesperline = pix->width * bpp; - pix->sizeimage = pix->bytesperline * pix->height; - - return bpp; -} - -/* - * omap_vout_uservirt_to_phys: This inline function is used to convert user - * space virtual address to physical address. - */ -static u32 omap_vout_uservirt_to_phys(u32 virtp) -{ - unsigned long physp = 0; - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; - - vma = find_vma(mm, virtp); - /* For kernel direct-mapped memory, take the easy way */ - if (virtp >= PAGE_OFFSET) { - physp = virt_to_phys((void *) virtp); - } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) { - /* this will catch, kernel-allocated, mmaped-to-usermode - addresses */ - physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start); - } else { - /* otherwise, use get_user_pages() for general userland pages */ - int res, nr_pages = 1; - struct page *pages; - down_read(¤t->mm->mmap_sem); - - res = get_user_pages(current, current->mm, virtp, nr_pages, 1, - 0, &pages, NULL); - up_read(¤t->mm->mmap_sem); - - if (res == nr_pages) { - physp = __pa(page_address(&pages[0]) + - (virtp & ~PAGE_MASK)); - } else { - printk(KERN_WARNING VOUT_NAME - "get_user_pages failed\n"); - return 0; - } - } - - return physp; -} - -/* - * Free the V4L2 buffers - */ -void omap_vout_free_buffers(struct omap_vout_device *vout) -{ - int i, numbuffers; - - /* Allocate memory for the buffers */ - numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers; - vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize; - - for (i = 0; i < numbuffers; i++) { - omap_vout_free_buffer(vout->buf_virt_addr[i], - vout->buffer_size); - vout->buf_phy_addr[i] = 0; - vout->buf_virt_addr[i] = 0; - } -} - -/* - * Convert V4L2 rotation to DSS rotation - * V4L2 understand 0, 90, 180, 270. - * Convert to 0, 1, 2 and 3 respectively for DSS - */ -static int v4l2_rot_to_dss_rot(int v4l2_rotation, - enum dss_rotation *rotation, bool mirror) -{ - int ret = 0; - - switch (v4l2_rotation) { - case 90: - *rotation = dss_rotation_90_degree; - break; - case 180: - *rotation = dss_rotation_180_degree; - break; - case 270: - *rotation = dss_rotation_270_degree; - break; - case 0: - *rotation = dss_rotation_0_degree; - break; - default: - ret = -EINVAL; - } - return ret; -} - -static int omap_vout_calculate_offset(struct omap_vout_device *vout) -{ - struct omapvideo_info *ovid; - struct v4l2_rect *crop = &vout->crop; - struct v4l2_pix_format *pix = &vout->pix; - int *cropped_offset = &vout->cropped_offset; - int ps = 2, line_length = 0; - - ovid = &vout->vid_info; - - if (ovid->rotation_type == VOUT_ROT_VRFB) { - omap_vout_calculate_vrfb_offset(vout); - } else { - vout->line_length = line_length = pix->width; - - if (V4L2_PIX_FMT_YUYV == pix->pixelformat || - V4L2_PIX_FMT_UYVY == pix->pixelformat) - ps = 2; - else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) - ps = 4; - else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) - ps = 3; - - vout->ps = ps; - - *cropped_offset = (line_length * ps) * - crop->top + crop->left * ps; - } - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n", - __func__, vout->cropped_offset); - - return 0; -} - -/* - * Convert V4L2 pixel format to DSS pixel format - */ -static int video_mode_to_dss_mode(struct omap_vout_device *vout) -{ - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct v4l2_pix_format *pix = &vout->pix; - enum omap_color_mode mode; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - switch (pix->pixelformat) { - case 0: - break; - case V4L2_PIX_FMT_YUYV: - mode = OMAP_DSS_COLOR_YUV2; - break; - case V4L2_PIX_FMT_UYVY: - mode = OMAP_DSS_COLOR_UYVY; - break; - case V4L2_PIX_FMT_RGB565: - mode = OMAP_DSS_COLOR_RGB16; - break; - case V4L2_PIX_FMT_RGB24: - mode = OMAP_DSS_COLOR_RGB24P; - break; - case V4L2_PIX_FMT_RGB32: - mode = (ovl->id == OMAP_DSS_VIDEO1) ? - OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32; - break; - case V4L2_PIX_FMT_BGR32: - mode = OMAP_DSS_COLOR_RGBX32; - break; - default: - mode = -EINVAL; - } - return mode; -} - -/* - * Setup the overlay - */ -static int omapvid_setup_overlay(struct omap_vout_device *vout, - struct omap_overlay *ovl, int posx, int posy, int outw, - int outh, u32 addr) -{ - int ret = 0; - struct omap_overlay_info info; - int cropheight, cropwidth, pixheight, pixwidth; - - if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 && - (outw != vout->pix.width || outh != vout->pix.height)) { - ret = -EINVAL; - goto setup_ovl_err; - } - - vout->dss_mode = video_mode_to_dss_mode(vout); - if (vout->dss_mode == -EINVAL) { - ret = -EINVAL; - goto setup_ovl_err; - } - - /* Setup the input plane parameters according to - * rotation value selected. - */ - if (is_rotation_90_or_270(vout)) { - cropheight = vout->crop.width; - cropwidth = vout->crop.height; - pixheight = vout->pix.width; - pixwidth = vout->pix.height; - } else { - cropheight = vout->crop.height; - cropwidth = vout->crop.width; - pixheight = vout->pix.height; - pixwidth = vout->pix.width; - } - - ovl->get_overlay_info(ovl, &info); - info.paddr = addr; - info.width = cropwidth; - info.height = cropheight; - info.color_mode = vout->dss_mode; - info.mirror = vout->mirror; - info.pos_x = posx; - info.pos_y = posy; - info.out_width = outw; - info.out_height = outh; - info.global_alpha = vout->win.global_alpha; - if (!is_rotation_enabled(vout)) { - info.rotation = 0; - info.rotation_type = OMAP_DSS_ROT_DMA; - info.screen_width = pixwidth; - } else { - info.rotation = vout->rotation; - info.rotation_type = OMAP_DSS_ROT_VRFB; - info.screen_width = 2048; - } - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, - "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n" - "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n" - "out_height=%d rotation_type=%d screen_width=%d\n", - __func__, ovl->is_enabled(ovl), info.paddr, info.width, info.height, - info.color_mode, info.rotation, info.mirror, info.pos_x, - info.pos_y, info.out_width, info.out_height, info.rotation_type, - info.screen_width); - - ret = ovl->set_overlay_info(ovl, &info); - if (ret) - goto setup_ovl_err; - - return 0; - -setup_ovl_err: - v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n"); - return ret; -} - -/* - * Initialize the overlay structure - */ -static int omapvid_init(struct omap_vout_device *vout, u32 addr) -{ - int ret = 0, i; - struct v4l2_window *win; - struct omap_overlay *ovl; - int posx, posy, outw, outh, temp; - struct omap_video_timings *timing; - struct omapvideo_info *ovid = &vout->vid_info; - - win = &vout->win; - for (i = 0; i < ovid->num_overlays; i++) { - ovl = ovid->overlays[i]; - if (!ovl->manager || !ovl->manager->device) - return -EINVAL; - - timing = &ovl->manager->device->panel.timings; - - outw = win->w.width; - outh = win->w.height; - switch (vout->rotation) { - case dss_rotation_90_degree: - /* Invert the height and width for 90 - * and 270 degree rotation - */ - temp = outw; - outw = outh; - outh = temp; - posy = (timing->y_res - win->w.width) - win->w.left; - posx = win->w.top; - break; - - case dss_rotation_180_degree: - posx = (timing->x_res - win->w.width) - win->w.left; - posy = (timing->y_res - win->w.height) - win->w.top; - break; - - case dss_rotation_270_degree: - temp = outw; - outw = outh; - outh = temp; - posy = win->w.left; - posx = (timing->x_res - win->w.height) - win->w.top; - break; - - default: - posx = win->w.left; - posy = win->w.top; - break; - } - - ret = omapvid_setup_overlay(vout, ovl, posx, posy, - outw, outh, addr); - if (ret) - goto omapvid_init_err; - } - return 0; - -omapvid_init_err: - v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n"); - return ret; -} - -/* - * Apply the changes set the go bit of DSS - */ -static int omapvid_apply_changes(struct omap_vout_device *vout) -{ - int i; - struct omap_overlay *ovl; - struct omapvideo_info *ovid = &vout->vid_info; - - for (i = 0; i < ovid->num_overlays; i++) { - ovl = ovid->overlays[i]; - if (!ovl->manager || !ovl->manager->device) - return -EINVAL; - ovl->manager->apply(ovl->manager); - } - - return 0; -} - -static int omapvid_handle_interlace_display(struct omap_vout_device *vout, - unsigned int irqstatus, struct timeval timevalue) -{ - u32 fid; - - if (vout->first_int) { - vout->first_int = 0; - goto err; - } - - if (irqstatus & DISPC_IRQ_EVSYNC_ODD) - fid = 1; - else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN) - fid = 0; - else - goto err; - - vout->field_id ^= 1; - if (fid != vout->field_id) { - if (fid == 0) - vout->field_id = fid; - } else if (0 == fid) { - if (vout->cur_frm == vout->next_frm) - goto err; - - vout->cur_frm->ts = timevalue; - vout->cur_frm->state = VIDEOBUF_DONE; - wake_up_interruptible(&vout->cur_frm->done); - vout->cur_frm = vout->next_frm; - } else { - if (list_empty(&vout->dma_queue) || - (vout->cur_frm != vout->next_frm)) - goto err; - } - - return vout->field_id; -err: - return 0; -} - -static void omap_vout_isr(void *arg, unsigned int irqstatus) -{ - int ret, fid, mgr_id; - u32 addr, irq; - struct omap_overlay *ovl; - struct timeval timevalue; - struct omapvideo_info *ovid; - struct omap_dss_device *cur_display; - struct omap_vout_device *vout = (struct omap_vout_device *)arg; - - if (!vout->streaming) - return; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - /* get the display device attached to the overlay */ - if (!ovl->manager || !ovl->manager->device) - return; - - mgr_id = ovl->manager->id; - cur_display = ovl->manager->device; - - spin_lock(&vout->vbq_lock); - do_gettimeofday(&timevalue); - - switch (cur_display->type) { - case OMAP_DISPLAY_TYPE_DSI: - case OMAP_DISPLAY_TYPE_DPI: - if (mgr_id == OMAP_DSS_CHANNEL_LCD) - irq = DISPC_IRQ_VSYNC; - else if (mgr_id == OMAP_DSS_CHANNEL_LCD2) - irq = DISPC_IRQ_VSYNC2; - else - goto vout_isr_err; - - if (!(irqstatus & irq)) - goto vout_isr_err; - break; - case OMAP_DISPLAY_TYPE_VENC: - fid = omapvid_handle_interlace_display(vout, irqstatus, - timevalue); - if (!fid) - goto vout_isr_err; - break; - case OMAP_DISPLAY_TYPE_HDMI: - if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN)) - goto vout_isr_err; - break; - default: - goto vout_isr_err; - } - - if (!vout->first_int && (vout->cur_frm != vout->next_frm)) { - vout->cur_frm->ts = timevalue; - vout->cur_frm->state = VIDEOBUF_DONE; - wake_up_interruptible(&vout->cur_frm->done); - vout->cur_frm = vout->next_frm; - } - - vout->first_int = 0; - if (list_empty(&vout->dma_queue)) - goto vout_isr_err; - - vout->next_frm = list_entry(vout->dma_queue.next, - struct videobuf_buffer, queue); - list_del(&vout->next_frm->queue); - - vout->next_frm->state = VIDEOBUF_ACTIVE; - - addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i] - + vout->cropped_offset; - - /* First save the configuration in ovelray structure */ - ret = omapvid_init(vout, addr); - if (ret) - printk(KERN_ERR VOUT_NAME - "failed to set overlay info\n"); - /* Enable the pipeline and set the Go bit */ - ret = omapvid_apply_changes(vout); - if (ret) - printk(KERN_ERR VOUT_NAME "failed to change mode\n"); - -vout_isr_err: - spin_unlock(&vout->vbq_lock); -} - -/* Video buffer call backs */ - -/* - * Buffer setup function is called by videobuf layer when REQBUF ioctl is - * called. This is used to setup buffers and return size and count of - * buffers allocated. After the call to this buffer, videobuf layer will - * setup buffer queue depending on the size and count of buffers - */ -static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count, - unsigned int *size) -{ - int startindex = 0, i, j; - u32 phy_addr = 0, virt_addr = 0; - struct omap_vout_device *vout = q->priv_data; - struct omapvideo_info *ovid = &vout->vid_info; - int vid_max_buf_size; - - if (!vout) - return -EINVAL; - - vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize : - video2_bufsize; - - if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type) - return -EINVAL; - - startindex = (vout->vid == OMAP_VIDEO1) ? - video1_numbuffers : video2_numbuffers; - if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex) - *count = startindex; - - if (ovid->rotation_type == VOUT_ROT_VRFB) { - if (omap_vout_vrfb_buffer_setup(vout, count, startindex)) - return -ENOMEM; - } - - if (V4L2_MEMORY_MMAP != vout->memory) - return 0; - - /* Now allocated the V4L2 buffers */ - *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp); - startindex = (vout->vid == OMAP_VIDEO1) ? - video1_numbuffers : video2_numbuffers; - - /* Check the size of the buffer */ - if (*size > vid_max_buf_size) { - v4l2_err(&vout->vid_dev->v4l2_dev, - "buffer allocation mismatch [%u] [%u]\n", - *size, vout->buffer_size); - return -ENOMEM; - } - - for (i = startindex; i < *count; i++) { - vout->buffer_size = *size; - - virt_addr = omap_vout_alloc_buffer(vout->buffer_size, - &phy_addr); - if (!virt_addr) { - if (ovid->rotation_type == VOUT_ROT_NONE) { - break; - } else { - if (!is_rotation_enabled(vout)) - break; - /* Free the VRFB buffers if no space for V4L2 buffers */ - for (j = i; j < *count; j++) { - omap_vout_free_buffer( - vout->smsshado_virt_addr[j], - vout->smsshado_size); - vout->smsshado_virt_addr[j] = 0; - vout->smsshado_phy_addr[j] = 0; - } - } - } - vout->buf_virt_addr[i] = virt_addr; - vout->buf_phy_addr[i] = phy_addr; - } - *count = vout->buffer_allocated = i; - - return 0; -} - -/* - * Free the V4L2 buffers additionally allocated than default - * number of buffers - */ -static void omap_vout_free_extra_buffers(struct omap_vout_device *vout) -{ - int num_buffers = 0, i; - - num_buffers = (vout->vid == OMAP_VIDEO1) ? - video1_numbuffers : video2_numbuffers; - - for (i = num_buffers; i < vout->buffer_allocated; i++) { - if (vout->buf_virt_addr[i]) - omap_vout_free_buffer(vout->buf_virt_addr[i], - vout->buffer_size); - - vout->buf_virt_addr[i] = 0; - vout->buf_phy_addr[i] = 0; - } - vout->buffer_allocated = num_buffers; -} - -/* - * This function will be called when VIDIOC_QBUF ioctl is called. - * It prepare buffers before give out for the display. This function - * converts user space virtual address into physical address if userptr memory - * exchange mechanism is used. If rotation is enabled, it copies entire - * buffer into VRFB memory space before giving it to the DSS. - */ -static int omap_vout_buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, - enum v4l2_field field) -{ - struct omap_vout_device *vout = q->priv_data; - struct omapvideo_info *ovid = &vout->vid_info; - - if (VIDEOBUF_NEEDS_INIT == vb->state) { - vb->width = vout->pix.width; - vb->height = vout->pix.height; - vb->size = vb->width * vb->height * vout->bpp; - vb->field = field; - } - vb->state = VIDEOBUF_PREPARED; - /* if user pointer memory mechanism is used, get the physical - * address of the buffer - */ - if (V4L2_MEMORY_USERPTR == vb->memory) { - if (0 == vb->baddr) - return -EINVAL; - /* Physical address */ - vout->queued_buf_addr[vb->i] = (u8 *) - omap_vout_uservirt_to_phys(vb->baddr); - } else { - u32 addr, dma_addr; - unsigned long size; - - addr = (unsigned long) vout->buf_virt_addr[vb->i]; - size = (unsigned long) vb->size; - - dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr, - size, DMA_TO_DEVICE); - if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr)) - v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n"); - - vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i]; - } - - if (ovid->rotation_type == VOUT_ROT_VRFB) - return omap_vout_prepare_vrfb(vout, vb); - else - return 0; -} - -/* - * Buffer queue function will be called from the videobuf layer when _QBUF - * ioctl is called. It is used to enqueue buffer, which is ready to be - * displayed. - */ -static void omap_vout_buffer_queue(struct videobuf_queue *q, - struct videobuf_buffer *vb) -{ - struct omap_vout_device *vout = q->priv_data; - - /* Driver is also maintainig a queue. So enqueue buffer in the driver - * queue */ - list_add_tail(&vb->queue, &vout->dma_queue); - - vb->state = VIDEOBUF_QUEUED; -} - -/* - * Buffer release function is called from videobuf layer to release buffer - * which are already allocated - */ -static void omap_vout_buffer_release(struct videobuf_queue *q, - struct videobuf_buffer *vb) -{ - struct omap_vout_device *vout = q->priv_data; - - vb->state = VIDEOBUF_NEEDS_INIT; - - if (V4L2_MEMORY_MMAP != vout->memory) - return; -} - -/* - * File operations - */ -static unsigned int omap_vout_poll(struct file *file, - struct poll_table_struct *wait) -{ - struct omap_vout_device *vout = file->private_data; - struct videobuf_queue *q = &vout->vbq; - - return videobuf_poll_stream(file, q, wait); -} - -static void omap_vout_vm_open(struct vm_area_struct *vma) -{ - struct omap_vout_device *vout = vma->vm_private_data; - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, - "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); - vout->mmap_count++; -} - -static void omap_vout_vm_close(struct vm_area_struct *vma) -{ - struct omap_vout_device *vout = vma->vm_private_data; - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, - "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); - vout->mmap_count--; -} - -static struct vm_operations_struct omap_vout_vm_ops = { - .open = omap_vout_vm_open, - .close = omap_vout_vm_close, -}; - -static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma) -{ - int i; - void *pos; - unsigned long start = vma->vm_start; - unsigned long size = (vma->vm_end - vma->vm_start); - struct omap_vout_device *vout = file->private_data; - struct videobuf_queue *q = &vout->vbq; - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, - " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__, - vma->vm_pgoff, vma->vm_start, vma->vm_end); - - /* look for the buffer to map */ - for (i = 0; i < VIDEO_MAX_FRAME; i++) { - if (NULL == q->bufs[i]) - continue; - if (V4L2_MEMORY_MMAP != q->bufs[i]->memory) - continue; - if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT)) - break; - } - - if (VIDEO_MAX_FRAME == i) { - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, - "offset invalid [offset=0x%lx]\n", - (vma->vm_pgoff << PAGE_SHIFT)); - return -EINVAL; - } - /* Check the size of the buffer */ - if (size > vout->buffer_size) { - v4l2_err(&vout->vid_dev->v4l2_dev, - "insufficient memory [%lu] [%u]\n", - size, vout->buffer_size); - return -ENOMEM; - } - - q->bufs[i]->baddr = vma->vm_start; - - vma->vm_flags |= VM_RESERVED; - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - vma->vm_ops = &omap_vout_vm_ops; - vma->vm_private_data = (void *) vout; - pos = (void *)vout->buf_virt_addr[i]; - vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT; - while (size > 0) { - unsigned long pfn; - pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT; - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) - return -EAGAIN; - start += PAGE_SIZE; - pos += PAGE_SIZE; - size -= PAGE_SIZE; - } - vout->mmap_count++; - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); - - return 0; -} - -static int omap_vout_release(struct file *file) -{ - unsigned int ret, i; - struct videobuf_queue *q; - struct omapvideo_info *ovid; - struct omap_vout_device *vout = file->private_data; - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); - ovid = &vout->vid_info; - - if (!vout) - return 0; - - q = &vout->vbq; - /* Disable all the overlay managers connected with this interface */ - for (i = 0; i < ovid->num_overlays; i++) { - struct omap_overlay *ovl = ovid->overlays[i]; - if (ovl->manager && ovl->manager->device) - ovl->disable(ovl); - } - /* Turn off the pipeline */ - ret = omapvid_apply_changes(vout); - if (ret) - v4l2_warn(&vout->vid_dev->v4l2_dev, - "Unable to apply changes\n"); - - /* Free all buffers */ - omap_vout_free_extra_buffers(vout); - - /* Free the VRFB buffers only if they are allocated - * during reqbufs. Don't free if init time allocated - */ - if (ovid->rotation_type == VOUT_ROT_VRFB) { - if (!vout->vrfb_static_allocation) - omap_vout_free_vrfb_buffers(vout); - } - videobuf_mmap_free(q); - - /* Even if apply changes fails we should continue - freeing allocated memory */ - if (vout->streaming) { - u32 mask = 0; - - mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | - DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2; - omap_dispc_unregister_isr(omap_vout_isr, vout, mask); - vout->streaming = 0; - - videobuf_streamoff(q); - videobuf_queue_cancel(q); - } - - if (vout->mmap_count != 0) - vout->mmap_count = 0; - - vout->opened -= 1; - file->private_data = NULL; - - if (vout->buffer_allocated) - videobuf_mmap_free(q); - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); - return ret; -} - -static int omap_vout_open(struct file *file) -{ - struct videobuf_queue *q; - struct omap_vout_device *vout = NULL; - - vout = video_drvdata(file); - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); - - if (vout == NULL) - return -ENODEV; - - /* for now, we only support single open */ - if (vout->opened) - return -EBUSY; - - vout->opened += 1; - - file->private_data = vout; - vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - - q = &vout->vbq; - video_vbq_ops.buf_setup = omap_vout_buffer_setup; - video_vbq_ops.buf_prepare = omap_vout_buffer_prepare; - video_vbq_ops.buf_release = omap_vout_buffer_release; - video_vbq_ops.buf_queue = omap_vout_buffer_queue; - spin_lock_init(&vout->vbq_lock); - - videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev, - &vout->vbq_lock, vout->type, V4L2_FIELD_NONE, - sizeof(struct videobuf_buffer), vout, NULL); - - v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); - return 0; -} - -/* - * V4L2 ioctls - */ -static int vidioc_querycap(struct file *file, void *fh, - struct v4l2_capability *cap) -{ - struct omap_vout_device *vout = fh; - - strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver)); - strlcpy(cap->card, vout->vfd->name, sizeof(cap->card)); - cap->bus_info[0] = '\0'; - cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT | - V4L2_CAP_VIDEO_OUTPUT_OVERLAY; - - return 0; -} - -static int vidioc_enum_fmt_vid_out(struct file *file, void *fh, - struct v4l2_fmtdesc *fmt) -{ - int index = fmt->index; - - if (index >= NUM_OUTPUT_FORMATS) - return -EINVAL; - - fmt->flags = omap_formats[index].flags; - strlcpy(fmt->description, omap_formats[index].description, - sizeof(fmt->description)); - fmt->pixelformat = omap_formats[index].pixelformat; - - return 0; -} - -static int vidioc_g_fmt_vid_out(struct file *file, void *fh, - struct v4l2_format *f) -{ - struct omap_vout_device *vout = fh; - - f->fmt.pix = vout->pix; - return 0; - -} - -static int vidioc_try_fmt_vid_out(struct file *file, void *fh, - struct v4l2_format *f) -{ - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_video_timings *timing; - struct omap_vout_device *vout = fh; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - if (!ovl->manager || !ovl->manager->device) - return -EINVAL; - /* get the display device attached to the overlay */ - timing = &ovl->manager->device->panel.timings; - - vout->fbuf.fmt.height = timing->y_res; - vout->fbuf.fmt.width = timing->x_res; - - omap_vout_try_format(&f->fmt.pix); - return 0; -} - -static int vidioc_s_fmt_vid_out(struct file *file, void *fh, - struct v4l2_format *f) -{ - int ret, bpp; - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_video_timings *timing; - struct omap_vout_device *vout = fh; - - if (vout->streaming) - return -EBUSY; - - mutex_lock(&vout->lock); - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - /* get the display device attached to the overlay */ - if (!ovl->manager || !ovl->manager->device) { - ret = -EINVAL; - goto s_fmt_vid_out_exit; - } - timing = &ovl->manager->device->panel.timings; - - /* We dont support RGB24-packed mode if vrfb rotation - * is enabled*/ - if ((is_rotation_enabled(vout)) && - f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) { - ret = -EINVAL; - goto s_fmt_vid_out_exit; - } - - /* get the framebuffer parameters */ - - if (is_rotation_90_or_270(vout)) { - vout->fbuf.fmt.height = timing->x_res; - vout->fbuf.fmt.width = timing->y_res; - } else { - vout->fbuf.fmt.height = timing->y_res; - vout->fbuf.fmt.width = timing->x_res; - } - - /* change to samller size is OK */ - - bpp = omap_vout_try_format(&f->fmt.pix); - f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp; - - /* try & set the new output format */ - vout->bpp = bpp; - vout->pix = f->fmt.pix; - vout->vrfb_bpp = 1; - - /* If YUYV then vrfb bpp is 2, for others its 1 */ - if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat || - V4L2_PIX_FMT_UYVY == vout->pix.pixelformat) - vout->vrfb_bpp = 2; - - /* set default crop and win */ - omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win); - - /* Save the changes in the overlay strcuture */ - ret = omapvid_init(vout, 0); - if (ret) { - v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n"); - goto s_fmt_vid_out_exit; - } - - ret = 0; - -s_fmt_vid_out_exit: - mutex_unlock(&vout->lock); - return ret; -} - -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, - struct v4l2_format *f) -{ - int ret = 0; - struct omap_vout_device *vout = fh; - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct v4l2_window *win = &f->fmt.win; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - ret = omap_vout_try_window(&vout->fbuf, win); - - if (!ret) { - if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0) - win->global_alpha = 255; - else - win->global_alpha = f->fmt.win.global_alpha; - } - - return ret; -} - -static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh, - struct v4l2_format *f) -{ - int ret = 0; - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_vout_device *vout = fh; - struct v4l2_window *win = &f->fmt.win; - - mutex_lock(&vout->lock); - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win); - if (!ret) { - /* Video1 plane does not support global alpha on OMAP3 */ - if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0) - vout->win.global_alpha = 255; - else - vout->win.global_alpha = f->fmt.win.global_alpha; - - vout->win.chromakey = f->fmt.win.chromakey; - } - mutex_unlock(&vout->lock); - return ret; -} - -static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh, - struct v4l2_fmtdesc *fmt) -{ - int index = fmt->index; - - if (index >= NUM_OUTPUT_FORMATS) - return -EINVAL; - - fmt->flags = omap_formats[index].flags; - strlcpy(fmt->description, omap_formats[index].description, - sizeof(fmt->description)); - fmt->pixelformat = omap_formats[index].pixelformat; - return 0; -} - -static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, - struct v4l2_format *f) -{ - u32 key_value = 0; - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_vout_device *vout = fh; - struct omap_overlay_manager_info info; - struct v4l2_window *win = &f->fmt.win; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - win->w = vout->win.w; - win->field = vout->win.field; - win->global_alpha = vout->win.global_alpha; - - if (ovl->manager && ovl->manager->get_manager_info) { - ovl->manager->get_manager_info(ovl->manager, &info); - key_value = info.trans_key; - } - win->chromakey = key_value; - return 0; -} - -static int vidioc_cropcap(struct file *file, void *fh, - struct v4l2_cropcap *cropcap) -{ - struct omap_vout_device *vout = fh; - struct v4l2_pix_format *pix = &vout->pix; - - if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - - /* Width and height are always even */ - cropcap->bounds.width = pix->width & ~1; - cropcap->bounds.height = pix->height & ~1; - - omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect); - cropcap->pixelaspect.numerator = 1; - cropcap->pixelaspect.denominator = 1; - return 0; -} - -static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) -{ - struct omap_vout_device *vout = fh; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - crop->c = vout->crop; - return 0; -} - -static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop) -{ - int ret = -EINVAL; - struct omap_vout_device *vout = fh; - struct omapvideo_info *ovid; - struct omap_overlay *ovl; - struct omap_video_timings *timing; - - if (vout->streaming) - return -EBUSY; - - mutex_lock(&vout->lock); - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - if (!ovl->manager || !ovl->manager->device) { - ret = -EINVAL; - goto s_crop_err; - } - /* get the display device attached to the overlay */ - timing = &ovl->manager->device->panel.timings; - - if (is_rotation_90_or_270(vout)) { - vout->fbuf.fmt.height = timing->x_res; - vout->fbuf.fmt.width = timing->y_res; - } else { - vout->fbuf.fmt.height = timing->y_res; - vout->fbuf.fmt.width = timing->x_res; - } - - if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) - ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win, - &vout->fbuf, &crop->c); - -s_crop_err: - mutex_unlock(&vout->lock); - return ret; -} - -static int vidioc_queryctrl(struct file *file, void *fh, - struct v4l2_queryctrl *ctrl) -{ - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_ROTATE: - ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0); - break; - case V4L2_CID_BG_COLOR: - ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0); - break; - case V4L2_CID_VFLIP: - ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0); - break; - default: - ctrl->name[0] = '\0'; - ret = -EINVAL; - } - return ret; -} - -static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl) -{ - int ret = 0; - struct omap_vout_device *vout = fh; - - switch (ctrl->id) { - case V4L2_CID_ROTATE: - ctrl->value = vout->control[0].value; - break; - case V4L2_CID_BG_COLOR: - { - struct omap_overlay_manager_info info; - struct omap_overlay *ovl; - - ovl = vout->vid_info.overlays[0]; - if (!ovl->manager || !ovl->manager->get_manager_info) { - ret = -EINVAL; - break; - } - - ovl->manager->get_manager_info(ovl->manager, &info); - ctrl->value = info.default_color; - break; - } - case V4L2_CID_VFLIP: - ctrl->value = vout->control[2].value; - break; - default: - ret = -EINVAL; - } - return ret; -} - -static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a) -{ - int ret = 0; - struct omap_vout_device *vout = fh; - - switch (a->id) { - case V4L2_CID_ROTATE: - { - struct omapvideo_info *ovid; - int rotation = a->value; - - ovid = &vout->vid_info; - - mutex_lock(&vout->lock); - if (rotation && ovid->rotation_type == VOUT_ROT_NONE) { - mutex_unlock(&vout->lock); - ret = -ERANGE; - break; - } - - if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { - mutex_unlock(&vout->lock); - ret = -EINVAL; - break; - } - - if (v4l2_rot_to_dss_rot(rotation, &vout->rotation, - vout->mirror)) { - mutex_unlock(&vout->lock); - ret = -EINVAL; - break; - } - - vout->control[0].value = rotation; - mutex_unlock(&vout->lock); - break; - } - case V4L2_CID_BG_COLOR: - { - struct omap_overlay *ovl; - unsigned int color = a->value; - struct omap_overlay_manager_info info; - - ovl = vout->vid_info.overlays[0]; - - mutex_lock(&vout->lock); - if (!ovl->manager || !ovl->manager->get_manager_info) { - mutex_unlock(&vout->lock); - ret = -EINVAL; - break; - } - - ovl->manager->get_manager_info(ovl->manager, &info); - info.default_color = color; - if (ovl->manager->set_manager_info(ovl->manager, &info)) { - mutex_unlock(&vout->lock); - ret = -EINVAL; - break; - } - - vout->control[1].value = color; - mutex_unlock(&vout->lock); - break; - } - case V4L2_CID_VFLIP: - { - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - unsigned int mirror = a->value; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - mutex_lock(&vout->lock); - if (mirror && ovid->rotation_type == VOUT_ROT_NONE) { - mutex_unlock(&vout->lock); - ret = -ERANGE; - break; - } - - if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { - mutex_unlock(&vout->lock); - ret = -EINVAL; - break; - } - vout->mirror = mirror; - vout->control[2].value = mirror; - mutex_unlock(&vout->lock); - break; - } - default: - ret = -EINVAL; - } - return ret; -} - -static int vidioc_reqbufs(struct file *file, void *fh, - struct v4l2_requestbuffers *req) -{ - int ret = 0; - unsigned int i, num_buffers = 0; - struct omap_vout_device *vout = fh; - struct videobuf_queue *q = &vout->vbq; - - if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0)) - return -EINVAL; - /* if memory is not mmp or userptr - return error */ - if ((V4L2_MEMORY_MMAP != req->memory) && - (V4L2_MEMORY_USERPTR != req->memory)) - return -EINVAL; - - mutex_lock(&vout->lock); - /* Cannot be requested when streaming is on */ - if (vout->streaming) { - ret = -EBUSY; - goto reqbuf_err; - } - - /* If buffers are already allocated free them */ - if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) { - if (vout->mmap_count) { - ret = -EBUSY; - goto reqbuf_err; - } - num_buffers = (vout->vid == OMAP_VIDEO1) ? - video1_numbuffers : video2_numbuffers; - for (i = num_buffers; i < vout->buffer_allocated; i++) { - omap_vout_free_buffer(vout->buf_virt_addr[i], - vout->buffer_size); - vout->buf_virt_addr[i] = 0; - vout->buf_phy_addr[i] = 0; - } - vout->buffer_allocated = num_buffers; - videobuf_mmap_free(q); - } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) { - if (vout->buffer_allocated) { - videobuf_mmap_free(q); - for (i = 0; i < vout->buffer_allocated; i++) { - kfree(q->bufs[i]); - q->bufs[i] = NULL; - } - vout->buffer_allocated = 0; - } - } - - /*store the memory type in data structure */ - vout->memory = req->memory; - - INIT_LIST_HEAD(&vout->dma_queue); - - /* call videobuf_reqbufs api */ - ret = videobuf_reqbufs(q, req); - if (ret < 0) - goto reqbuf_err; - - vout->buffer_allocated = req->count; - -reqbuf_err: - mutex_unlock(&vout->lock); - return ret; -} - -static int vidioc_querybuf(struct file *file, void *fh, - struct v4l2_buffer *b) -{ - struct omap_vout_device *vout = fh; - - return videobuf_querybuf(&vout->vbq, b); -} - -static int vidioc_qbuf(struct file *file, void *fh, - struct v4l2_buffer *buffer) -{ - struct omap_vout_device *vout = fh; - struct videobuf_queue *q = &vout->vbq; - - if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) || - (buffer->index >= vout->buffer_allocated) || - (q->bufs[buffer->index]->memory != buffer->memory)) { - return -EINVAL; - } - if (V4L2_MEMORY_USERPTR == buffer->memory) { - if ((buffer->length < vout->pix.sizeimage) || - (0 == buffer->m.userptr)) { - return -EINVAL; - } - } - - if ((is_rotation_enabled(vout)) && - vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) { - v4l2_warn(&vout->vid_dev->v4l2_dev, - "DMA Channel not allocated for Rotation\n"); - return -EINVAL; - } - - return videobuf_qbuf(q, buffer); -} - -static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b) -{ - struct omap_vout_device *vout = fh; - struct videobuf_queue *q = &vout->vbq; - - int ret; - u32 addr; - unsigned long size; - struct videobuf_buffer *vb; - - vb = q->bufs[b->index]; - - if (!vout->streaming) - return -EINVAL; - - if (file->f_flags & O_NONBLOCK) - /* Call videobuf_dqbuf for non blocking mode */ - ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1); - else - /* Call videobuf_dqbuf for blocking mode */ - ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0); - - addr = (unsigned long) vout->buf_phy_addr[vb->i]; - size = (unsigned long) vb->size; - dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr, - size, DMA_TO_DEVICE); - return ret; -} - -static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i) -{ - int ret = 0, j; - u32 addr = 0, mask = 0; - struct omap_vout_device *vout = fh; - struct videobuf_queue *q = &vout->vbq; - struct omapvideo_info *ovid = &vout->vid_info; - - mutex_lock(&vout->lock); - - if (vout->streaming) { - ret = -EBUSY; - goto streamon_err; - } - - ret = videobuf_streamon(q); - if (ret) - goto streamon_err; - - if (list_empty(&vout->dma_queue)) { - ret = -EIO; - goto streamon_err1; - } - - /* Get the next frame from the buffer queue */ - vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next, - struct videobuf_buffer, queue); - /* Remove buffer from the buffer queue */ - list_del(&vout->cur_frm->queue); - /* Mark state of the current frame to active */ - vout->cur_frm->state = VIDEOBUF_ACTIVE; - /* Initialize field_id and started member */ - vout->field_id = 0; - - /* set flag here. Next QBUF will start DMA */ - vout->streaming = 1; - - vout->first_int = 1; - - if (omap_vout_calculate_offset(vout)) { - ret = -EINVAL; - goto streamon_err1; - } - addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i] - + vout->cropped_offset; - - mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD - | DISPC_IRQ_VSYNC2; - - omap_dispc_register_isr(omap_vout_isr, vout, mask); - - for (j = 0; j < ovid->num_overlays; j++) { - struct omap_overlay *ovl = ovid->overlays[j]; - - if (ovl->manager && ovl->manager->device) { - struct omap_overlay_info info; - ovl->get_overlay_info(ovl, &info); - info.paddr = addr; - if (ovl->set_overlay_info(ovl, &info)) { - ret = -EINVAL; - goto streamon_err1; - } - } - } - - /* First save the configuration in ovelray structure */ - ret = omapvid_init(vout, addr); - if (ret) - v4l2_err(&vout->vid_dev->v4l2_dev, - "failed to set overlay info\n"); - /* Enable the pipeline and set the Go bit */ - ret = omapvid_apply_changes(vout); - if (ret) - v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n"); - - for (j = 0; j < ovid->num_overlays; j++) { - struct omap_overlay *ovl = ovid->overlays[j]; - - if (ovl->manager && ovl->manager->device) { - ret = ovl->enable(ovl); - if (ret) - goto streamon_err1; - } - } - - ret = 0; - -streamon_err1: - if (ret) - ret = videobuf_streamoff(q); -streamon_err: - mutex_unlock(&vout->lock); - return ret; -} - -static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i) -{ - u32 mask = 0; - int ret = 0, j; - struct omap_vout_device *vout = fh; - struct omapvideo_info *ovid = &vout->vid_info; - - if (!vout->streaming) - return -EINVAL; - - vout->streaming = 0; - mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD - | DISPC_IRQ_VSYNC2; - - omap_dispc_unregister_isr(omap_vout_isr, vout, mask); - - for (j = 0; j < ovid->num_overlays; j++) { - struct omap_overlay *ovl = ovid->overlays[j]; - - if (ovl->manager && ovl->manager->device) - ovl->disable(ovl); - } - - /* Turn of the pipeline */ - ret = omapvid_apply_changes(vout); - if (ret) - v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in" - " streamoff\n"); - - INIT_LIST_HEAD(&vout->dma_queue); - ret = videobuf_streamoff(&vout->vbq); - - return ret; -} - -static int vidioc_s_fbuf(struct file *file, void *fh, - struct v4l2_framebuffer *a) -{ - int enable = 0; - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_vout_device *vout = fh; - struct omap_overlay_manager_info info; - enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - /* OMAP DSS doesn't support Source and Destination color - key together */ - if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) && - (a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) - return -EINVAL; - /* OMAP DSS Doesn't support the Destination color key - and alpha blending together */ - if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) && - (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA)) - return -EINVAL; - - if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) { - vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; - key_type = OMAP_DSS_COLOR_KEY_VID_SRC; - } else - vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY; - - if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) { - vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY; - key_type = OMAP_DSS_COLOR_KEY_GFX_DST; - } else - vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY; - - if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY | - V4L2_FBUF_FLAG_SRC_CHROMAKEY)) - enable = 1; - else - enable = 0; - if (ovl->manager && ovl->manager->get_manager_info && - ovl->manager->set_manager_info) { - - ovl->manager->get_manager_info(ovl->manager, &info); - info.trans_enabled = enable; - info.trans_key_type = key_type; - info.trans_key = vout->win.chromakey; - - if (ovl->manager->set_manager_info(ovl->manager, &info)) - return -EINVAL; - } - if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) { - vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; - enable = 1; - } else { - vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA; - enable = 0; - } - if (ovl->manager && ovl->manager->get_manager_info && - ovl->manager->set_manager_info) { - ovl->manager->get_manager_info(ovl->manager, &info); - /* enable this only if there is no zorder cap */ - if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0) - info.partial_alpha_enabled = enable; - if (ovl->manager->set_manager_info(ovl->manager, &info)) - return -EINVAL; - } - - return 0; -} - -static int vidioc_g_fbuf(struct file *file, void *fh, - struct v4l2_framebuffer *a) -{ - struct omap_overlay *ovl; - struct omapvideo_info *ovid; - struct omap_vout_device *vout = fh; - struct omap_overlay_manager_info info; - - ovid = &vout->vid_info; - ovl = ovid->overlays[0]; - - /* The video overlay must stay within the framebuffer and can't be - positioned independently. */ - a->flags = V4L2_FBUF_FLAG_OVERLAY; - a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY - | V4L2_FBUF_CAP_SRC_CHROMAKEY; - - if (ovl->manager && ovl->manager->get_manager_info) { - ovl->manager->get_manager_info(ovl->manager, &info); - if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC) - a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; - if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST) - a->flags |= V4L2_FBUF_FLAG_CHROMAKEY; - } - if (ovl->manager && ovl->manager->get_manager_info) { - ovl->manager->get_manager_info(ovl->manager, &info); - if (info.partial_alpha_enabled) - a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; - } - - return 0; -} - -static const struct v4l2_ioctl_ops vout_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, - .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, - .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, - .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, - .vidioc_queryctrl = vidioc_queryctrl, - .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_s_fbuf = vidioc_s_fbuf, - .vidioc_g_fbuf = vidioc_g_fbuf, - .vidioc_s_ctrl = vidioc_s_ctrl, - .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, - .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, - .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, - .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, - .vidioc_cropcap = vidioc_cropcap, - .vidioc_g_crop = vidioc_g_crop, - .vidioc_s_crop = vidioc_s_crop, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, -}; - -static const struct v4l2_file_operations omap_vout_fops = { - .owner = THIS_MODULE, - .poll = omap_vout_poll, - .unlocked_ioctl = video_ioctl2, - .mmap = omap_vout_mmap, - .open = omap_vout_open, - .release = omap_vout_release, -}; - -/* Init functions used during driver initialization */ -/* Initial setup of video_data */ -static int __init omap_vout_setup_video_data(struct omap_vout_device *vout) -{ - struct video_device *vfd; - struct v4l2_pix_format *pix; - struct v4l2_control *control; - struct omap_dss_device *display = - vout->vid_info.overlays[0]->manager->device; - - /* set the default pix */ - pix = &vout->pix; - - /* Set the default picture of QVGA */ - pix->width = QQVGA_WIDTH; - pix->height = QQVGA_HEIGHT; - - /* Default pixel format is RGB 5-6-5 */ - pix->pixelformat = V4L2_PIX_FMT_RGB565; - pix->field = V4L2_FIELD_ANY; - pix->bytesperline = pix->width * 2; - pix->sizeimage = pix->bytesperline * pix->height; - pix->priv = 0; - pix->colorspace = V4L2_COLORSPACE_JPEG; - - vout->bpp = RGB565_BPP; - vout->fbuf.fmt.width = display->panel.timings.x_res; - vout->fbuf.fmt.height = display->panel.timings.y_res; - - /* Set the data structures for the overlay parameters*/ - vout->win.global_alpha = 255; - vout->fbuf.flags = 0; - vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA | - V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY; - vout->win.chromakey = 0; - - omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win); - - /*Initialize the control variables for - rotation, flipping and background color. */ - control = vout->control; - control[0].id = V4L2_CID_ROTATE; - control[0].value = 0; - vout->rotation = 0; - vout->mirror = 0; - vout->control[2].id = V4L2_CID_HFLIP; - vout->control[2].value = 0; - if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) - vout->vrfb_bpp = 2; - - control[1].id = V4L2_CID_BG_COLOR; - control[1].value = 0; - - /* initialize the video_device struct */ - vfd = vout->vfd = video_device_alloc(); - - if (!vfd) { - printk(KERN_ERR VOUT_NAME ": could not allocate" - " video device struct\n"); - return -ENOMEM; - } - vfd->release = video_device_release; - vfd->ioctl_ops = &vout_ioctl_ops; - - strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name)); - - vfd->fops = &omap_vout_fops; - vfd->v4l2_dev = &vout->vid_dev->v4l2_dev; - mutex_init(&vout->lock); - - vfd->minor = -1; - return 0; - -} - -/* Setup video buffers */ -static int __init omap_vout_setup_video_bufs(struct platform_device *pdev, - int vid_num) -{ - u32 numbuffers; - int ret = 0, i; - struct omapvideo_info *ovid; - struct omap_vout_device *vout; - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct omap2video_device *vid_dev = - container_of(v4l2_dev, struct omap2video_device, v4l2_dev); - - vout = vid_dev->vouts[vid_num]; - ovid = &vout->vid_info; - - numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers; - vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize; - dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size); - - for (i = 0; i < numbuffers; i++) { - vout->buf_virt_addr[i] = - omap_vout_alloc_buffer(vout->buffer_size, - (u32 *) &vout->buf_phy_addr[i]); - if (!vout->buf_virt_addr[i]) { - numbuffers = i; - ret = -ENOMEM; - goto free_buffers; - } - } - - vout->cropped_offset = 0; - - if (ovid->rotation_type == VOUT_ROT_VRFB) { - int static_vrfb_allocation = (vid_num == 0) ? - vid1_static_vrfb_alloc : vid2_static_vrfb_alloc; - ret = omap_vout_setup_vrfb_bufs(pdev, vid_num, - static_vrfb_allocation); - } - - return ret; - -free_buffers: - for (i = 0; i < numbuffers; i++) { - omap_vout_free_buffer(vout->buf_virt_addr[i], - vout->buffer_size); - vout->buf_virt_addr[i] = 0; - vout->buf_phy_addr[i] = 0; - } - return ret; - -} - -/* Create video out devices */ -static int __init omap_vout_create_video_devices(struct platform_device *pdev) -{ - int ret = 0, k; - struct omap_vout_device *vout; - struct video_device *vfd = NULL; - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct omap2video_device *vid_dev = container_of(v4l2_dev, - struct omap2video_device, v4l2_dev); - - for (k = 0; k < pdev->num_resources; k++) { - - vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL); - if (!vout) { - dev_err(&pdev->dev, ": could not allocate memory\n"); - return -ENOMEM; - } - - vout->vid = k; - vid_dev->vouts[k] = vout; - vout->vid_dev = vid_dev; - /* Select video2 if only 1 overlay is controlled by V4L2 */ - if (pdev->num_resources == 1) - vout->vid_info.overlays[0] = vid_dev->overlays[k + 2]; - else - /* Else select video1 and video2 one by one. */ - vout->vid_info.overlays[0] = vid_dev->overlays[k + 1]; - vout->vid_info.num_overlays = 1; - vout->vid_info.id = k + 1; - - /* Set VRFB as rotation_type for omap2 and omap3 */ - if (cpu_is_omap24xx() || cpu_is_omap34xx()) - vout->vid_info.rotation_type = VOUT_ROT_VRFB; - - /* Setup the default configuration for the video devices - */ - if (omap_vout_setup_video_data(vout) != 0) { - ret = -ENOMEM; - goto error; - } - - /* Allocate default number of buffers for the video streaming - * and reserve the VRFB space for rotation - */ - if (omap_vout_setup_video_bufs(pdev, k) != 0) { - ret = -ENOMEM; - goto error1; - } - - /* Register the Video device with V4L2 - */ - vfd = vout->vfd; - if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) { - dev_err(&pdev->dev, ": Could not register " - "Video for Linux device\n"); - vfd->minor = -1; - ret = -ENODEV; - goto error2; - } - video_set_drvdata(vfd, vout); - - /* Configure the overlay structure */ - ret = omapvid_init(vid_dev->vouts[k], 0); - if (!ret) - goto success; - -error2: - if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) - omap_vout_release_vrfb(vout); - omap_vout_free_buffers(vout); -error1: - video_device_release(vfd); -error: - kfree(vout); - return ret; - -success: - dev_info(&pdev->dev, ": registered and initialized" - " video device %d\n", vfd->minor); - if (k == (pdev->num_resources - 1)) - return 0; - } - - return -ENODEV; -} -/* Driver functions */ -static void omap_vout_cleanup_device(struct omap_vout_device *vout) -{ - struct video_device *vfd; - struct omapvideo_info *ovid; - - if (!vout) - return; - - vfd = vout->vfd; - ovid = &vout->vid_info; - if (vfd) { - if (!video_is_registered(vfd)) { - /* - * The device was never registered, so release the - * video_device struct directly. - */ - video_device_release(vfd); - } else { - /* - * The unregister function will release the video_device - * struct as well as unregistering it. - */ - video_unregister_device(vfd); - } - } - if (ovid->rotation_type == VOUT_ROT_VRFB) { - omap_vout_release_vrfb(vout); - /* Free the VRFB buffer if allocated - * init time - */ - if (vout->vrfb_static_allocation) - omap_vout_free_vrfb_buffers(vout); - } - omap_vout_free_buffers(vout); - - kfree(vout); -} - -static int omap_vout_remove(struct platform_device *pdev) -{ - int k; - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct omap2video_device *vid_dev = container_of(v4l2_dev, struct - omap2video_device, v4l2_dev); - - v4l2_device_unregister(v4l2_dev); - for (k = 0; k < pdev->num_resources; k++) - omap_vout_cleanup_device(vid_dev->vouts[k]); - - for (k = 0; k < vid_dev->num_displays; k++) { - if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED) - vid_dev->displays[k]->driver->disable(vid_dev->displays[k]); - - omap_dss_put_device(vid_dev->displays[k]); - } - kfree(vid_dev); - return 0; -} - -static int __init omap_vout_probe(struct platform_device *pdev) -{ - int ret = 0, i; - struct omap_overlay *ovl; - struct omap_dss_device *dssdev = NULL; - struct omap_dss_device *def_display; - struct omap2video_device *vid_dev = NULL; - - if (pdev->num_resources == 0) { - dev_err(&pdev->dev, "probed for an unknown device\n"); - return -ENODEV; - } - - vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL); - if (vid_dev == NULL) - return -ENOMEM; - - vid_dev->num_displays = 0; - for_each_dss_dev(dssdev) { - omap_dss_get_device(dssdev); - - if (!dssdev->driver) { - dev_warn(&pdev->dev, "no driver for display: %s\n", - dssdev->name); - omap_dss_put_device(dssdev); - continue; - } - - vid_dev->displays[vid_dev->num_displays++] = dssdev; - } - - if (vid_dev->num_displays == 0) { - dev_err(&pdev->dev, "no displays\n"); - ret = -EINVAL; - goto probe_err0; - } - - vid_dev->num_overlays = omap_dss_get_num_overlays(); - for (i = 0; i < vid_dev->num_overlays; i++) - vid_dev->overlays[i] = omap_dss_get_overlay(i); - - vid_dev->num_managers = omap_dss_get_num_overlay_managers(); - for (i = 0; i < vid_dev->num_managers; i++) - vid_dev->managers[i] = omap_dss_get_overlay_manager(i); - - /* Get the Video1 overlay and video2 overlay. - * Setup the Display attached to that overlays - */ - for (i = 1; i < vid_dev->num_overlays; i++) { - ovl = omap_dss_get_overlay(i); - if (ovl->manager && ovl->manager->device) { - def_display = ovl->manager->device; - } else { - dev_warn(&pdev->dev, "cannot find display\n"); - def_display = NULL; - } - if (def_display) { - struct omap_dss_driver *dssdrv = def_display->driver; - - ret = dssdrv->enable(def_display); - if (ret) { - /* Here we are not considering a error - * as display may be enabled by frame - * buffer driver - */ - dev_warn(&pdev->dev, - "'%s' Display already enabled\n", - def_display->name); - } - } - } - - if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) { - dev_err(&pdev->dev, "v4l2_device_register failed\n"); - ret = -ENODEV; - goto probe_err1; - } - - ret = omap_vout_create_video_devices(pdev); - if (ret) - goto probe_err2; - - for (i = 0; i < vid_dev->num_displays; i++) { - struct omap_dss_device *display = vid_dev->displays[i]; - - if (display->driver->update) - display->driver->update(display, 0, 0, - display->panel.timings.x_res, - display->panel.timings.y_res); - } - return 0; - -probe_err2: - v4l2_device_unregister(&vid_dev->v4l2_dev); -probe_err1: - for (i = 1; i < vid_dev->num_overlays; i++) { - def_display = NULL; - ovl = omap_dss_get_overlay(i); - if (ovl->manager && ovl->manager->device) - def_display = ovl->manager->device; - - if (def_display && def_display->driver) - def_display->driver->disable(def_display); - } -probe_err0: - kfree(vid_dev); - return ret; -} - -static struct platform_driver omap_vout_driver = { - .driver = { - .name = VOUT_NAME, - }, - .remove = omap_vout_remove, -}; - -static int __init omap_vout_init(void) -{ - if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) { - printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n"); - return -EINVAL; - } - return 0; -} - -static void omap_vout_cleanup(void) -{ - platform_driver_unregister(&omap_vout_driver); -} - -late_initcall(omap_vout_init); -module_exit(omap_vout_cleanup); |
