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-----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJYKLHHAAoJEHm+PkMAQRiGOqoH/iTmywTeevTpx4jbEb8u3LAR Bi1ACuBjJKJgYemRPdnH9e1/6nHRkw8EhwUIb2Jv4pyRb+pV2ssxy5sRinY8k9qw 9pRf+DS9158c5Mc5lZTc3wnRMs49+zowgGpzUjw2HIFoq3E3H0bYpsCl144e4Y8z 0R6jDKL/YXa9tzVVDTjHG9aG/l0Anc2VzFnWSalNhX5W2PSKc2QtticR3+kTVnA3 oP4q5UCymdwrZ33XLVldmHqE3n9m8wKGn+gBUMCoJwt5DVRSjqXeT+IkmLdESHEH 2GyFBE120coYLxTN8CAB4Wa/Woyr0VG6OJvX+Lq3zbnehjteAGOXHzBwYrIOsGc= =EwHz -----END PGP SIGNATURE----- Merge tag 'v4.9-rc5' into patchwork Linux 4.9-rc5 * tag 'v4.9-rc5': (1102 commits) Linux 4.9-rc5 gp8psk: Fix DVB frontend attach gp8psk: fix gp8psk_usb_in_op() logic dvb-usb: move data_mutex to struct dvb_usb_device iio: maxim_thermocouple: detect invalid storage size in read() aoe: fix crash in page count manipulation lightnvm: invalid offset calculation for lba_shift Kbuild: enable -Wmaybe-uninitialized warnings by default pcmcia: fix return value of soc_pcmcia_regulator_set infiniband: shut up a maybe-uninitialized warning crypto: aesni: shut up -Wmaybe-uninitialized warning rc: print correct variable for z8f0811 dib0700: fix nec repeat handling s390: pci: don't print uninitialized data for debugging nios2: fix timer initcall return value x86: apm: avoid uninitialized data NFSv4.1: work around -Wmaybe-uninitialized warning Kbuild: enable -Wmaybe-uninitialized warning for "make W=1" lib/stackdepot: export save/fetch stack for drivers mm: kmemleak: scan .data.ro_after_init ...
2227 lines
54 KiB
C
2227 lines
54 KiB
C
/*
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* omap_vout.c
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*
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* Copyright (C) 2005-2010 Texas Instruments.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*
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* Leveraged code from the OMAP2 camera driver
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* Video-for-Linux (Version 2) camera capture driver for
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* the OMAP24xx camera controller.
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*
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* Author: Andy Lowe (source@mvista.com)
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*
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* Copyright (C) 2004 MontaVista Software, Inc.
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* Copyright (C) 2010 Texas Instruments.
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*
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* History:
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* 20-APR-2006 Khasim Modified VRFB based Rotation,
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* The image data is always read from 0 degree
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* view and written
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* to the virtual space of desired rotation angle
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* 4-DEC-2006 Jian Changed to support better memory management
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*
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* 17-Nov-2008 Hardik Changed driver to use video_ioctl2
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*
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* 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/vmalloc.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/videodev2.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <media/videobuf-dma-contig.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <video/omapvrfb.h>
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#include <video/omapfb_dss.h>
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#include "omap_voutlib.h"
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#include "omap_voutdef.h"
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#include "omap_vout_vrfb.h"
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MODULE_AUTHOR("Texas Instruments");
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MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
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MODULE_LICENSE("GPL");
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/* Driver Configuration macros */
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#define VOUT_NAME "omap_vout"
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enum omap_vout_channels {
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OMAP_VIDEO1,
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OMAP_VIDEO2,
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};
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static struct videobuf_queue_ops video_vbq_ops;
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/* Variables configurable through module params*/
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static u32 video1_numbuffers = 3;
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static u32 video2_numbuffers = 3;
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static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
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static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
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static bool vid1_static_vrfb_alloc;
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static bool vid2_static_vrfb_alloc;
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static bool debug;
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/* Module parameters */
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module_param(video1_numbuffers, uint, S_IRUGO);
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MODULE_PARM_DESC(video1_numbuffers,
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"Number of buffers to be allocated at init time for Video1 device.");
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module_param(video2_numbuffers, uint, S_IRUGO);
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MODULE_PARM_DESC(video2_numbuffers,
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"Number of buffers to be allocated at init time for Video2 device.");
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module_param(video1_bufsize, uint, S_IRUGO);
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MODULE_PARM_DESC(video1_bufsize,
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"Size of the buffer to be allocated for video1 device");
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module_param(video2_bufsize, uint, S_IRUGO);
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MODULE_PARM_DESC(video2_bufsize,
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"Size of the buffer to be allocated for video2 device");
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module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
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MODULE_PARM_DESC(vid1_static_vrfb_alloc,
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"Static allocation of the VRFB buffer for video1 device");
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module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
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MODULE_PARM_DESC(vid2_static_vrfb_alloc,
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"Static allocation of the VRFB buffer for video2 device");
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module_param(debug, bool, S_IRUGO);
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MODULE_PARM_DESC(debug, "Debug level (0-1)");
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/* list of image formats supported by OMAP2 video pipelines */
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static const struct v4l2_fmtdesc omap_formats[] = {
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{
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/* Note: V4L2 defines RGB565 as:
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*
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* Byte 0 Byte 1
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* g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
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*
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* We interpret RGB565 as:
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*
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* Byte 0 Byte 1
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* g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
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*/
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.description = "RGB565, le",
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.pixelformat = V4L2_PIX_FMT_RGB565,
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},
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{
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/* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
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* this for RGB24 unpack mode, the last 8 bits are ignored
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* */
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.description = "RGB32, le",
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.pixelformat = V4L2_PIX_FMT_RGB32,
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},
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{
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/* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
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* this for RGB24 packed mode
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*
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*/
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.description = "RGB24, le",
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.pixelformat = V4L2_PIX_FMT_RGB24,
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},
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{
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.description = "YUYV (YUV 4:2:2), packed",
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.pixelformat = V4L2_PIX_FMT_YUYV,
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},
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{
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.description = "UYVY, packed",
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.pixelformat = V4L2_PIX_FMT_UYVY,
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},
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};
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#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
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/*
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* Try format
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*/
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static int omap_vout_try_format(struct v4l2_pix_format *pix)
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{
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int ifmt, bpp = 0;
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pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
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(u32)VID_MAX_HEIGHT);
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pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
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for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
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if (pix->pixelformat == omap_formats[ifmt].pixelformat)
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break;
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}
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if (ifmt == NUM_OUTPUT_FORMATS)
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ifmt = 0;
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pix->pixelformat = omap_formats[ifmt].pixelformat;
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pix->field = V4L2_FIELD_ANY;
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switch (pix->pixelformat) {
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case V4L2_PIX_FMT_YUYV:
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case V4L2_PIX_FMT_UYVY:
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default:
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pix->colorspace = V4L2_COLORSPACE_JPEG;
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bpp = YUYV_BPP;
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break;
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case V4L2_PIX_FMT_RGB565:
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case V4L2_PIX_FMT_RGB565X:
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pix->colorspace = V4L2_COLORSPACE_SRGB;
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bpp = RGB565_BPP;
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break;
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case V4L2_PIX_FMT_RGB24:
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pix->colorspace = V4L2_COLORSPACE_SRGB;
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bpp = RGB24_BPP;
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break;
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case V4L2_PIX_FMT_RGB32:
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case V4L2_PIX_FMT_BGR32:
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pix->colorspace = V4L2_COLORSPACE_SRGB;
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bpp = RGB32_BPP;
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break;
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}
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pix->bytesperline = pix->width * bpp;
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pix->sizeimage = pix->bytesperline * pix->height;
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return bpp;
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}
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/*
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* omap_vout_get_userptr: Convert user space virtual address to physical
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* address.
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*/
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static int omap_vout_get_userptr(struct videobuf_buffer *vb, u32 virtp,
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u32 *physp)
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{
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struct frame_vector *vec;
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int ret;
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/* For kernel direct-mapped memory, take the easy way */
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if (virtp >= PAGE_OFFSET) {
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*physp = virt_to_phys((void *)virtp);
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return 0;
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}
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vec = frame_vector_create(1);
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if (!vec)
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return -ENOMEM;
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ret = get_vaddr_frames(virtp, 1, FOLL_WRITE, vec);
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if (ret != 1) {
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frame_vector_destroy(vec);
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return -EINVAL;
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}
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*physp = __pfn_to_phys(frame_vector_pfns(vec)[0]);
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vb->priv = vec;
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return 0;
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}
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/*
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* Free the V4L2 buffers
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*/
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void omap_vout_free_buffers(struct omap_vout_device *vout)
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{
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int i, numbuffers;
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/* Allocate memory for the buffers */
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numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers;
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vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
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for (i = 0; i < numbuffers; i++) {
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omap_vout_free_buffer(vout->buf_virt_addr[i],
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vout->buffer_size);
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vout->buf_phy_addr[i] = 0;
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vout->buf_virt_addr[i] = 0;
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}
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}
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/*
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* Convert V4L2 rotation to DSS rotation
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* V4L2 understand 0, 90, 180, 270.
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* Convert to 0, 1, 2 and 3 respectively for DSS
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*/
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static int v4l2_rot_to_dss_rot(int v4l2_rotation,
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enum dss_rotation *rotation, bool mirror)
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{
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int ret = 0;
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switch (v4l2_rotation) {
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case 90:
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*rotation = dss_rotation_90_degree;
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break;
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case 180:
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*rotation = dss_rotation_180_degree;
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break;
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case 270:
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*rotation = dss_rotation_270_degree;
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break;
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case 0:
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*rotation = dss_rotation_0_degree;
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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static int omap_vout_calculate_offset(struct omap_vout_device *vout)
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{
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struct omapvideo_info *ovid;
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struct v4l2_rect *crop = &vout->crop;
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struct v4l2_pix_format *pix = &vout->pix;
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int *cropped_offset = &vout->cropped_offset;
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int ps = 2, line_length = 0;
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ovid = &vout->vid_info;
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if (ovid->rotation_type == VOUT_ROT_VRFB) {
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omap_vout_calculate_vrfb_offset(vout);
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} else {
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vout->line_length = line_length = pix->width;
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if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
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V4L2_PIX_FMT_UYVY == pix->pixelformat)
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ps = 2;
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else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
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ps = 4;
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else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
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ps = 3;
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vout->ps = ps;
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*cropped_offset = (line_length * ps) *
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crop->top + crop->left * ps;
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}
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v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
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__func__, vout->cropped_offset);
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return 0;
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}
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/*
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* Convert V4L2 pixel format to DSS pixel format
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*/
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static int video_mode_to_dss_mode(struct omap_vout_device *vout)
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{
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struct omap_overlay *ovl;
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struct omapvideo_info *ovid;
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struct v4l2_pix_format *pix = &vout->pix;
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enum omap_color_mode mode;
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ovid = &vout->vid_info;
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ovl = ovid->overlays[0];
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switch (pix->pixelformat) {
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case V4L2_PIX_FMT_YUYV:
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mode = OMAP_DSS_COLOR_YUV2;
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break;
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case V4L2_PIX_FMT_UYVY:
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mode = OMAP_DSS_COLOR_UYVY;
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break;
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case V4L2_PIX_FMT_RGB565:
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mode = OMAP_DSS_COLOR_RGB16;
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break;
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case V4L2_PIX_FMT_RGB24:
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mode = OMAP_DSS_COLOR_RGB24P;
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break;
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case V4L2_PIX_FMT_RGB32:
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mode = (ovl->id == OMAP_DSS_VIDEO1) ?
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OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
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break;
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case V4L2_PIX_FMT_BGR32:
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mode = OMAP_DSS_COLOR_RGBX32;
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break;
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default:
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mode = -EINVAL;
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break;
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}
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return mode;
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}
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/*
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* Setup the overlay
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*/
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static int omapvid_setup_overlay(struct omap_vout_device *vout,
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struct omap_overlay *ovl, int posx, int posy, int outw,
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int outh, u32 addr)
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{
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int ret = 0;
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struct omap_overlay_info info;
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int cropheight, cropwidth, pixwidth;
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if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
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(outw != vout->pix.width || outh != vout->pix.height)) {
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ret = -EINVAL;
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goto setup_ovl_err;
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}
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vout->dss_mode = video_mode_to_dss_mode(vout);
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if (vout->dss_mode == -EINVAL) {
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ret = -EINVAL;
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goto setup_ovl_err;
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}
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/* Setup the input plane parameters according to
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* rotation value selected.
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*/
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if (is_rotation_90_or_270(vout)) {
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cropheight = vout->crop.width;
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cropwidth = vout->crop.height;
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pixwidth = vout->pix.height;
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} else {
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cropheight = vout->crop.height;
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cropwidth = vout->crop.width;
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pixwidth = vout->pix.width;
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}
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ovl->get_overlay_info(ovl, &info);
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info.paddr = addr;
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info.width = cropwidth;
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info.height = cropheight;
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info.color_mode = vout->dss_mode;
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info.mirror = vout->mirror;
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info.pos_x = posx;
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info.pos_y = posy;
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info.out_width = outw;
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info.out_height = outh;
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info.global_alpha = vout->win.global_alpha;
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if (!is_rotation_enabled(vout)) {
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info.rotation = 0;
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info.rotation_type = OMAP_DSS_ROT_DMA;
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info.screen_width = pixwidth;
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} else {
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info.rotation = vout->rotation;
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info.rotation_type = OMAP_DSS_ROT_VRFB;
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info.screen_width = 2048;
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}
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v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
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"%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
|
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"rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
|
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"out_height=%d rotation_type=%d screen_width=%d\n", __func__,
|
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ovl->is_enabled(ovl), &info.paddr, info.width, info.height,
|
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info.color_mode, info.rotation, info.mirror, info.pos_x,
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info.pos_y, info.out_width, info.out_height, info.rotation_type,
|
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info.screen_width);
|
|
|
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ret = ovl->set_overlay_info(ovl, &info);
|
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if (ret)
|
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goto setup_ovl_err;
|
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|
|
return 0;
|
|
|
|
setup_ovl_err:
|
|
v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
|
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return ret;
|
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}
|
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|
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/*
|
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* Initialize the overlay structure
|
|
*/
|
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static int omapvid_init(struct omap_vout_device *vout, u32 addr)
|
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{
|
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int ret = 0, i;
|
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struct v4l2_window *win;
|
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struct omap_overlay *ovl;
|
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int posx, posy, outw, outh;
|
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struct omap_video_timings *timing;
|
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struct omapvideo_info *ovid = &vout->vid_info;
|
|
|
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win = &vout->win;
|
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for (i = 0; i < ovid->num_overlays; i++) {
|
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struct omap_dss_device *dssdev;
|
|
|
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ovl = ovid->overlays[i];
|
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dssdev = ovl->get_device(ovl);
|
|
|
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if (!dssdev)
|
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return -EINVAL;
|
|
|
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timing = &dssdev->panel.timings;
|
|
|
|
outw = win->w.width;
|
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outh = win->w.height;
|
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switch (vout->rotation) {
|
|
case dss_rotation_90_degree:
|
|
/* Invert the height and width for 90
|
|
* and 270 degree rotation
|
|
*/
|
|
swap(outw, outh);
|
|
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:
|
|
swap(outw, outh);
|
|
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++) {
|
|
struct omap_dss_device *dssdev;
|
|
|
|
ovl = ovid->overlays[i];
|
|
dssdev = ovl->get_device(ovl);
|
|
if (!dssdev)
|
|
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];
|
|
|
|
mgr_id = ovl->manager->id;
|
|
|
|
/* get the display device attached to the overlay */
|
|
cur_display = ovl->get_device(ovl);
|
|
|
|
if (!cur_display)
|
|
return;
|
|
|
|
spin_lock(&vout->vbq_lock);
|
|
v4l2_get_timestamp(&timevalue);
|
|
|
|
switch (cur_display->type) {
|
|
case OMAP_DISPLAY_TYPE_DSI:
|
|
case OMAP_DISPLAY_TYPE_DPI:
|
|
case OMAP_DISPLAY_TYPE_DVI:
|
|
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");
|
|
goto vout_isr_err;
|
|
}
|
|
|
|
/* 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) {
|
|
int ret;
|
|
|
|
if (0 == vb->baddr)
|
|
return -EINVAL;
|
|
/* Physical address */
|
|
ret = omap_vout_get_userptr(vb, vb->baddr,
|
|
(u32 *)&vout->queued_buf_addr[vb->i]);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
unsigned long 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)
|
|
{
|
|
vb->state = VIDEOBUF_NEEDS_INIT;
|
|
if (vb->memory == V4L2_MEMORY_USERPTR && vb->priv) {
|
|
struct frame_vector *vec = vb->priv;
|
|
|
|
put_vaddr_frames(vec);
|
|
frame_vector_destroy(vec);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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 const 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_DONTEXPAND | VM_DONTDUMP;
|
|
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];
|
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
|
|
if (dssdev)
|
|
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 = false;
|
|
|
|
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->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
|
|
V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
|
|
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
|
|
|
|
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;
|
|
struct omap_dss_device *dssdev;
|
|
|
|
ovid = &vout->vid_info;
|
|
ovl = ovid->overlays[0];
|
|
/* get the display device attached to the overlay */
|
|
dssdev = ovl->get_device(ovl);
|
|
|
|
if (!dssdev)
|
|
return -EINVAL;
|
|
|
|
timing = &dssdev->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;
|
|
struct omap_dss_device *dssdev;
|
|
|
|
if (vout->streaming)
|
|
return -EBUSY;
|
|
|
|
mutex_lock(&vout->lock);
|
|
|
|
ovid = &vout->vid_info;
|
|
ovl = ovid->overlays[0];
|
|
dssdev = ovl->get_device(ovl);
|
|
|
|
/* get the display device attached to the overlay */
|
|
if (!dssdev) {
|
|
ret = -EINVAL;
|
|
goto s_fmt_vid_out_exit;
|
|
}
|
|
timing = &dssdev->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);
|
|
|
|
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_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_g_selection(struct file *file, void *fh, struct v4l2_selection *sel)
|
|
{
|
|
struct omap_vout_device *vout = fh;
|
|
struct v4l2_pix_format *pix = &vout->pix;
|
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
|
|
return -EINVAL;
|
|
|
|
switch (sel->target) {
|
|
case V4L2_SEL_TGT_CROP:
|
|
sel->r = vout->crop;
|
|
break;
|
|
case V4L2_SEL_TGT_CROP_DEFAULT:
|
|
omap_vout_default_crop(&vout->pix, &vout->fbuf, &sel->r);
|
|
break;
|
|
case V4L2_SEL_TGT_CROP_BOUNDS:
|
|
/* Width and height are always even */
|
|
sel->r.width = pix->width & ~1;
|
|
sel->r.height = pix->height & ~1;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_selection(struct file *file, void *fh, struct v4l2_selection *sel)
|
|
{
|
|
int ret = -EINVAL;
|
|
struct omap_vout_device *vout = fh;
|
|
struct omapvideo_info *ovid;
|
|
struct omap_overlay *ovl;
|
|
struct omap_video_timings *timing;
|
|
struct omap_dss_device *dssdev;
|
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
|
|
return -EINVAL;
|
|
|
|
if (sel->target != V4L2_SEL_TGT_CROP)
|
|
return -EINVAL;
|
|
|
|
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 */
|
|
dssdev = ovl->get_device(ovl);
|
|
|
|
if (!dssdev) {
|
|
ret = -EINVAL;
|
|
goto s_crop_err;
|
|
}
|
|
|
|
timing = &dssdev->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;
|
|
}
|
|
|
|
ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
|
|
&vout->fbuf, &sel->r);
|
|
|
|
s_crop_err:
|
|
mutex_unlock(&vout->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int omap_vout_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct omap_vout_device *vout =
|
|
container_of(ctrl->handler, struct omap_vout_device, ctrl_handler);
|
|
int ret = 0;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_ROTATE: {
|
|
struct omapvideo_info *ovid;
|
|
int rotation = ctrl->val;
|
|
|
|
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;
|
|
}
|
|
mutex_unlock(&vout->lock);
|
|
break;
|
|
}
|
|
case V4L2_CID_BG_COLOR:
|
|
{
|
|
struct omap_overlay *ovl;
|
|
unsigned int color = ctrl->val;
|
|
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;
|
|
}
|
|
mutex_unlock(&vout->lock);
|
|
break;
|
|
}
|
|
case V4L2_CID_VFLIP:
|
|
{
|
|
struct omapvideo_info *ovid;
|
|
unsigned int mirror = ctrl->val;
|
|
|
|
ovid = &vout->vid_info;
|
|
|
|
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;
|
|
mutex_unlock(&vout->lock);
|
|
break;
|
|
}
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops omap_vout_ctrl_ops = {
|
|
.s_ctrl = omap_vout_s_ctrl,
|
|
};
|
|
|
|
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)
|
|
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 = true;
|
|
|
|
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;
|
|
|
|
/* 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");
|
|
goto streamon_err1;
|
|
}
|
|
|
|
omap_dispc_register_isr(omap_vout_isr, vout, mask);
|
|
|
|
/* 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];
|
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
|
|
if (dssdev) {
|
|
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 = false;
|
|
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];
|
|
struct omap_dss_device *dssdev = ovl->get_device(ovl);
|
|
|
|
if (dssdev)
|
|
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,
|
|
const 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_s_fbuf = vidioc_s_fbuf,
|
|
.vidioc_g_fbuf = vidioc_g_fbuf,
|
|
.vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_overlay,
|
|
.vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_overlay,
|
|
.vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_overlay,
|
|
.vidioc_g_selection = vidioc_g_selection,
|
|
.vidioc_s_selection = vidioc_s_selection,
|
|
.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 omap_overlay *ovl = vout->vid_info.overlays[0];
|
|
struct omap_dss_device *display = ovl->get_device(ovl);
|
|
struct v4l2_ctrl_handler *hdl;
|
|
|
|
/* 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->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);
|
|
|
|
hdl = &vout->ctrl_handler;
|
|
v4l2_ctrl_handler_init(hdl, 3);
|
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
|
V4L2_CID_ROTATE, 0, 270, 90, 0);
|
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
|
V4L2_CID_BG_COLOR, 0, 0xffffff, 1, 0);
|
|
v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
|
|
V4L2_CID_VFLIP, 0, 1, 1, 0);
|
|
if (hdl->error)
|
|
return hdl->error;
|
|
|
|
vout->rotation = 0;
|
|
vout->mirror = false;
|
|
if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
|
|
vout->vrfb_bpp = 2;
|
|
|
|
/* 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");
|
|
v4l2_ctrl_handler_free(hdl);
|
|
return -ENOMEM;
|
|
}
|
|
vfd->ctrl_handler = hdl;
|
|
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;
|
|
vfd->vfl_dir = VFL_DIR_TX;
|
|
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) {
|
|
bool 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 (omap_vout_dss_omap24xx() || omap_vout_dss_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);
|
|
|
|
dev_info(&pdev->dev,
|
|
": registered and initialized video device %d\n",
|
|
vfd->minor);
|
|
if (k == (pdev->num_resources - 1))
|
|
return 0;
|
|
|
|
continue;
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
v4l2_ctrl_handler_free(&vout->ctrl_handler);
|
|
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 (omapdss_is_initialized() == false)
|
|
return -EPROBE_DEFER;
|
|
|
|
ret = omapdss_compat_init();
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "failed to init dss\n");
|
|
return ret;
|
|
}
|
|
|
|
if (pdev->num_resources == 0) {
|
|
dev_err(&pdev->dev, "probed for an unknown device\n");
|
|
ret = -ENODEV;
|
|
goto err_dss_init;
|
|
}
|
|
|
|
vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
|
|
if (vid_dev == NULL) {
|
|
ret = -ENOMEM;
|
|
goto err_dss_init;
|
|
}
|
|
|
|
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);
|
|
dssdev = ovl->get_device(ovl);
|
|
|
|
if (dssdev) {
|
|
def_display = dssdev;
|
|
} 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);
|
|
dssdev = ovl->get_device(ovl);
|
|
|
|
if (dssdev)
|
|
def_display = dssdev;
|
|
|
|
if (def_display && def_display->driver)
|
|
def_display->driver->disable(def_display);
|
|
}
|
|
probe_err0:
|
|
kfree(vid_dev);
|
|
err_dss_init:
|
|
omapdss_compat_uninit();
|
|
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);
|