c2cfcf7018
The vino driver needs #include <media/v4l2-ioctl.h> drivers/media/video/vino.c: In function 'vino_ioctl': drivers/media/video/vino.c:4364: error: implicit declaration of function 'video_usercopy' make[3]: *** [drivers/media/video/vino.o] Error 1 Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
4662 lines
104 KiB
C
4662 lines
104 KiB
C
/*
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* Driver for the VINO (Video In No Out) system found in SGI Indys.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
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*
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* Based on the previous version of the driver for 2.4 kernels by:
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* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
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*/
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/*
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* TODO:
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* - remove "mark pages reserved-hacks" from memory allocation code
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* and implement fault()
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* - check decimation, calculating and reporting image size when
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* using decimation
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* - implement read(), user mode buffers and overlay (?)
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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/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/time.h>
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#include <linux/version.h>
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#ifdef CONFIG_KMOD
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#include <linux/kmod.h>
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#endif
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#include <linux/i2c.h>
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#include <linux/i2c-algo-sgi.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/video_decoder.h>
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#include <linux/mutex.h>
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#include <asm/paccess.h>
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#include <asm/io.h>
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#include <asm/sgi/ip22.h>
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#include <asm/sgi/mc.h>
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#include "vino.h"
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#include "saa7191.h"
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#include "indycam.h"
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/* Uncomment the following line to get lots and lots of (mostly useless)
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* debug info.
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* Note that the debug output also slows down the driver significantly */
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// #define VINO_DEBUG
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// #define VINO_DEBUG_INT
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#define VINO_MODULE_VERSION "0.0.5"
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#define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5)
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MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver");
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MODULE_VERSION(VINO_MODULE_VERSION);
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MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
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MODULE_LICENSE("GPL");
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#ifdef VINO_DEBUG
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#define dprintk(x...) printk("VINO: " x);
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#else
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#define dprintk(x...)
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#endif
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#define VINO_NO_CHANNEL 0
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#define VINO_CHANNEL_A 1
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#define VINO_CHANNEL_B 2
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#define VINO_PAL_WIDTH 768
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#define VINO_PAL_HEIGHT 576
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#define VINO_NTSC_WIDTH 640
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#define VINO_NTSC_HEIGHT 480
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#define VINO_MIN_WIDTH 32
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#define VINO_MIN_HEIGHT 32
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#define VINO_CLIPPING_START_ODD_D1 1
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#define VINO_CLIPPING_START_ODD_PAL 15
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#define VINO_CLIPPING_START_ODD_NTSC 12
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#define VINO_CLIPPING_START_EVEN_D1 2
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#define VINO_CLIPPING_START_EVEN_PAL 15
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#define VINO_CLIPPING_START_EVEN_NTSC 12
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#define VINO_INPUT_CHANNEL_COUNT 3
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/* the number is the index for vino_inputs */
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#define VINO_INPUT_NONE -1
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#define VINO_INPUT_COMPOSITE 0
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#define VINO_INPUT_SVIDEO 1
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#define VINO_INPUT_D1 2
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#define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE)
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#define VINO_FIFO_THRESHOLD_DEFAULT 16
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#define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \
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* VINO_PAL_HEIGHT * 4 \
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+ 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1))
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#define VINO_FRAMEBUFFER_COUNT_MAX 8
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#define VINO_FRAMEBUFFER_UNUSED 0
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#define VINO_FRAMEBUFFER_IN_USE 1
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#define VINO_FRAMEBUFFER_READY 2
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#define VINO_QUEUE_ERROR -1
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#define VINO_QUEUE_MAGIC 0x20050125
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#define VINO_MEMORY_NONE 0
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#define VINO_MEMORY_MMAP 1
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#define VINO_MEMORY_USERPTR 2
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#define VINO_DUMMY_DESC_COUNT 4
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#define VINO_DESC_FETCH_DELAY 5 /* microseconds */
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#define VINO_MAX_FRAME_SKIP_COUNT 128
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/* the number is the index for vino_data_formats */
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#define VINO_DATA_FMT_NONE -1
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#define VINO_DATA_FMT_GREY 0
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#define VINO_DATA_FMT_RGB332 1
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#define VINO_DATA_FMT_RGB32 2
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#define VINO_DATA_FMT_YUV 3
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#define VINO_DATA_FMT_COUNT 4
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/* the number is the index for vino_data_norms */
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#define VINO_DATA_NORM_NONE -1
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#define VINO_DATA_NORM_NTSC 0
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#define VINO_DATA_NORM_PAL 1
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#define VINO_DATA_NORM_SECAM 2
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#define VINO_DATA_NORM_D1 3
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/* The following are special entries that can be used to
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* autodetect the norm. */
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#define VINO_DATA_NORM_AUTO 0xfe
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#define VINO_DATA_NORM_AUTO_EXT 0xff
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#define VINO_DATA_NORM_COUNT 4
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/* Internal data structure definitions */
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struct vino_input {
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char *name;
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v4l2_std_id std;
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};
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struct vino_clipping {
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unsigned int left, right, top, bottom;
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};
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struct vino_data_format {
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/* the description */
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char *description;
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/* bytes per pixel */
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unsigned int bpp;
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/* V4L2 fourcc code */
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__u32 pixelformat;
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/* V4L2 colorspace (duh!) */
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enum v4l2_colorspace colorspace;
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};
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struct vino_data_norm {
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char *description;
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unsigned int width, height;
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struct vino_clipping odd;
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struct vino_clipping even;
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v4l2_std_id std;
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unsigned int fps_min, fps_max;
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__u32 framelines;
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};
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struct vino_descriptor_table {
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/* the number of PAGE_SIZE sized pages in the buffer */
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unsigned int page_count;
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/* virtual (kmalloc'd) pointers to the actual data
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* (in PAGE_SIZE chunks, used with mmap streaming) */
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unsigned long *virtual;
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/* cpu address for the VINO descriptor table
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* (contains DMA addresses, VINO_PAGE_SIZE chunks) */
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unsigned long *dma_cpu;
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/* dma address for the VINO descriptor table
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* (contains DMA addresses, VINO_PAGE_SIZE chunks) */
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dma_addr_t dma;
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};
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struct vino_framebuffer {
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/* identifier nubmer */
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unsigned int id;
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/* the length of the whole buffer */
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unsigned int size;
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/* the length of actual data in buffer */
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unsigned int data_size;
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/* the data format */
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unsigned int data_format;
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/* the state of buffer data */
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unsigned int state;
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/* is the buffer mapped in user space? */
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unsigned int map_count;
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/* memory offset for mmap() */
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unsigned int offset;
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/* frame counter */
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unsigned int frame_counter;
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/* timestamp (written when image capture finishes) */
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struct timeval timestamp;
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struct vino_descriptor_table desc_table;
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spinlock_t state_lock;
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};
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struct vino_framebuffer_fifo {
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unsigned int length;
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unsigned int used;
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unsigned int head;
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unsigned int tail;
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unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX];
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};
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struct vino_framebuffer_queue {
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unsigned int magic;
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/* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */
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unsigned int type;
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unsigned int length;
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/* data field of in and out contain index numbers for buffer */
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struct vino_framebuffer_fifo in;
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struct vino_framebuffer_fifo out;
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struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX];
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spinlock_t queue_lock;
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struct mutex queue_mutex;
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wait_queue_head_t frame_wait_queue;
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};
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struct vino_interrupt_data {
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struct timeval timestamp;
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unsigned int frame_counter;
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unsigned int skip_count;
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unsigned int skip;
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};
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struct vino_channel_settings {
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unsigned int channel;
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int input;
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unsigned int data_format;
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unsigned int data_norm;
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struct vino_clipping clipping;
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unsigned int decimation;
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unsigned int line_size;
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unsigned int alpha;
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unsigned int fps;
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unsigned int framert_reg;
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unsigned int fifo_threshold;
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struct vino_framebuffer_queue fb_queue;
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/* number of the current field */
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unsigned int field;
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/* read in progress */
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int reading;
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/* streaming is active */
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int streaming;
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/* the driver is currently processing the queue */
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int capturing;
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struct mutex mutex;
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spinlock_t capture_lock;
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unsigned int users;
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struct vino_interrupt_data int_data;
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/* V4L support */
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struct video_device *v4l_device;
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};
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struct vino_client {
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/* the channel which owns this client:
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* VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */
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unsigned int owner;
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struct i2c_client *driver;
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};
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struct vino_settings {
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struct vino_channel_settings a;
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struct vino_channel_settings b;
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struct vino_client decoder;
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struct vino_client camera;
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/* a lock for vino register access */
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spinlock_t vino_lock;
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/* a lock for channel input changes */
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spinlock_t input_lock;
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unsigned long dummy_page;
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struct vino_descriptor_table dummy_desc_table;
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};
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/* Module parameters */
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/*
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* Using vino_pixel_conversion the ABGR32-format pixels supplied
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* by the VINO chip can be converted to more common formats
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* like RGBA32 (or probably RGB24 in the future). This way we
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* can give out data that can be specified correctly with
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* the V4L2-definitions.
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*
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* The pixel format is specified as RGBA32 when no conversion
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* is used.
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*
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* Note that this only affects the 32-bit bit depth.
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*
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* Use non-zero value to enable conversion.
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*/
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static int vino_pixel_conversion;
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module_param_named(pixelconv, vino_pixel_conversion, int, 0);
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MODULE_PARM_DESC(pixelconv,
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"enable pixel conversion (non-zero value enables)");
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/* Internal data structures */
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static struct sgi_vino *vino;
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static struct vino_settings *vino_drvdata;
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static const char *vino_driver_name = "vino";
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static const char *vino_driver_description = "SGI VINO";
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static const char *vino_bus_name = "GIO64 bus";
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static const char *vino_v4l_device_name_a = "SGI VINO Channel A";
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static const char *vino_v4l_device_name_b = "SGI VINO Channel B";
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static void vino_capture_tasklet(unsigned long channel);
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DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A);
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DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B);
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static const struct vino_input vino_inputs[] = {
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{
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.name = "Composite",
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.std = V4L2_STD_NTSC | V4L2_STD_PAL
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| V4L2_STD_SECAM,
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},{
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.name = "S-Video",
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.std = V4L2_STD_NTSC | V4L2_STD_PAL
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| V4L2_STD_SECAM,
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},{
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.name = "D1/IndyCam",
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.std = V4L2_STD_NTSC,
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}
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};
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static const struct vino_data_format vino_data_formats[] = {
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{
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.description = "8-bit greyscale",
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.bpp = 1,
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.pixelformat = V4L2_PIX_FMT_GREY,
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.colorspace = V4L2_COLORSPACE_SMPTE170M,
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},{
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.description = "8-bit dithered RGB 3-3-2",
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.bpp = 1,
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.pixelformat = V4L2_PIX_FMT_RGB332,
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.colorspace = V4L2_COLORSPACE_SRGB,
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},{
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.description = "32-bit RGB",
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.bpp = 4,
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.pixelformat = V4L2_PIX_FMT_RGB32,
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.colorspace = V4L2_COLORSPACE_SRGB,
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},{
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.description = "YUV 4:2:2",
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.bpp = 2,
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.pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped?
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.colorspace = V4L2_COLORSPACE_SMPTE170M,
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}
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};
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static const struct vino_data_norm vino_data_norms[] = {
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{
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.description = "NTSC",
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.std = V4L2_STD_NTSC,
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.fps_min = 6,
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.fps_max = 30,
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.framelines = 525,
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.width = VINO_NTSC_WIDTH,
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.height = VINO_NTSC_HEIGHT,
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.odd = {
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.top = VINO_CLIPPING_START_ODD_NTSC,
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.left = 0,
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.bottom = VINO_CLIPPING_START_ODD_NTSC
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+ VINO_NTSC_HEIGHT / 2 - 1,
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.right = VINO_NTSC_WIDTH,
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},
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.even = {
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.top = VINO_CLIPPING_START_EVEN_NTSC,
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.left = 0,
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.bottom = VINO_CLIPPING_START_EVEN_NTSC
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+ VINO_NTSC_HEIGHT / 2 - 1,
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.right = VINO_NTSC_WIDTH,
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},
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},{
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.description = "PAL",
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.std = V4L2_STD_PAL,
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.fps_min = 5,
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.fps_max = 25,
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.framelines = 625,
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.width = VINO_PAL_WIDTH,
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.height = VINO_PAL_HEIGHT,
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.odd = {
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.top = VINO_CLIPPING_START_ODD_PAL,
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.left = 0,
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.bottom = VINO_CLIPPING_START_ODD_PAL
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+ VINO_PAL_HEIGHT / 2 - 1,
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.right = VINO_PAL_WIDTH,
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},
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.even = {
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.top = VINO_CLIPPING_START_EVEN_PAL,
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.left = 0,
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.bottom = VINO_CLIPPING_START_EVEN_PAL
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+ VINO_PAL_HEIGHT / 2 - 1,
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.right = VINO_PAL_WIDTH,
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},
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},{
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.description = "SECAM",
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.std = V4L2_STD_SECAM,
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.fps_min = 5,
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.fps_max = 25,
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.framelines = 625,
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.width = VINO_PAL_WIDTH,
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.height = VINO_PAL_HEIGHT,
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.odd = {
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.top = VINO_CLIPPING_START_ODD_PAL,
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.left = 0,
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.bottom = VINO_CLIPPING_START_ODD_PAL
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+ VINO_PAL_HEIGHT / 2 - 1,
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.right = VINO_PAL_WIDTH,
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},
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.even = {
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.top = VINO_CLIPPING_START_EVEN_PAL,
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.left = 0,
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.bottom = VINO_CLIPPING_START_EVEN_PAL
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+ VINO_PAL_HEIGHT / 2 - 1,
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.right = VINO_PAL_WIDTH,
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},
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},{
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.description = "NTSC/D1",
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.std = V4L2_STD_NTSC,
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.fps_min = 6,
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.fps_max = 30,
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.framelines = 525,
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.width = VINO_NTSC_WIDTH,
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.height = VINO_NTSC_HEIGHT,
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.odd = {
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.top = VINO_CLIPPING_START_ODD_D1,
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.left = 0,
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.bottom = VINO_CLIPPING_START_ODD_D1
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+ VINO_NTSC_HEIGHT / 2 - 1,
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.right = VINO_NTSC_WIDTH,
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},
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.even = {
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.top = VINO_CLIPPING_START_EVEN_D1,
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.left = 0,
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.bottom = VINO_CLIPPING_START_EVEN_D1
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+ VINO_NTSC_HEIGHT / 2 - 1,
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.right = VINO_NTSC_WIDTH,
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},
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}
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};
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#define VINO_INDYCAM_V4L2_CONTROL_COUNT 9
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struct v4l2_queryctrl vino_indycam_v4l2_controls[] = {
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{
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.id = V4L2_CID_AUTOGAIN,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Automatic Gain Control",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = INDYCAM_AGC_DEFAULT,
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.flags = 0,
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.reserved = { INDYCAM_CONTROL_AGC, 0 },
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},{
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.id = V4L2_CID_AUTO_WHITE_BALANCE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "Automatic White Balance",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
|
|
.default_value = INDYCAM_AWB_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_AWB, 0 },
|
|
},{
|
|
.id = V4L2_CID_GAIN,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Gain",
|
|
.minimum = INDYCAM_GAIN_MIN,
|
|
.maximum = INDYCAM_GAIN_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_GAIN_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_GAIN, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Red Saturation",
|
|
.minimum = INDYCAM_RED_SATURATION_MIN,
|
|
.maximum = INDYCAM_RED_SATURATION_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_RED_SATURATION_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_RED_SATURATION, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 1,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Blue Saturation",
|
|
.minimum = INDYCAM_BLUE_SATURATION_MIN,
|
|
.maximum = INDYCAM_BLUE_SATURATION_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_BLUE_SATURATION_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_BLUE_SATURATION, 0 },
|
|
},{
|
|
.id = V4L2_CID_RED_BALANCE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Red Balance",
|
|
.minimum = INDYCAM_RED_BALANCE_MIN,
|
|
.maximum = INDYCAM_RED_BALANCE_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_RED_BALANCE_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_RED_BALANCE, 0 },
|
|
},{
|
|
.id = V4L2_CID_BLUE_BALANCE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Blue Balance",
|
|
.minimum = INDYCAM_BLUE_BALANCE_MIN,
|
|
.maximum = INDYCAM_BLUE_BALANCE_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_BLUE_BALANCE_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_BLUE_BALANCE, 0 },
|
|
},{
|
|
.id = V4L2_CID_EXPOSURE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Shutter Control",
|
|
.minimum = INDYCAM_SHUTTER_MIN,
|
|
.maximum = INDYCAM_SHUTTER_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_SHUTTER_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_SHUTTER, 0 },
|
|
},{
|
|
.id = V4L2_CID_GAMMA,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Gamma",
|
|
.minimum = INDYCAM_GAMMA_MIN,
|
|
.maximum = INDYCAM_GAMMA_MAX,
|
|
.step = 1,
|
|
.default_value = INDYCAM_GAMMA_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { INDYCAM_CONTROL_GAMMA, 0 },
|
|
}
|
|
};
|
|
|
|
#define VINO_SAA7191_V4L2_CONTROL_COUNT 9
|
|
|
|
struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = {
|
|
{
|
|
.id = V4L2_CID_HUE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Hue",
|
|
.minimum = SAA7191_HUE_MIN,
|
|
.maximum = SAA7191_HUE_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_HUE_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_HUE, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Luminance Bandpass",
|
|
.minimum = SAA7191_BANDPASS_MIN,
|
|
.maximum = SAA7191_BANDPASS_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_BANDPASS_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_BANDPASS, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 1,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Luminance Bandpass Weight",
|
|
.minimum = SAA7191_BANDPASS_WEIGHT_MIN,
|
|
.maximum = SAA7191_BANDPASS_WEIGHT_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_BANDPASS_WEIGHT, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 2,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "HF Luminance Coring",
|
|
.minimum = SAA7191_CORING_MIN,
|
|
.maximum = SAA7191_CORING_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_CORING_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_CORING, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 3,
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.name = "Force Colour",
|
|
.minimum = SAA7191_FORCE_COLOUR_MIN,
|
|
.maximum = SAA7191_FORCE_COLOUR_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_FORCE_COLOUR_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_FORCE_COLOUR, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 4,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Chrominance Gain Control",
|
|
.minimum = SAA7191_CHROMA_GAIN_MIN,
|
|
.maximum = SAA7191_CHROMA_GAIN_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_CHROMA_GAIN_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_CHROMA_GAIN, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 5,
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.name = "VTR Time Constant",
|
|
.minimum = SAA7191_VTRC_MIN,
|
|
.maximum = SAA7191_VTRC_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_VTRC_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_VTRC, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 6,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Luminance Delay Compensation",
|
|
.minimum = SAA7191_LUMA_DELAY_MIN,
|
|
.maximum = SAA7191_LUMA_DELAY_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_LUMA_DELAY_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_LUMA_DELAY, 0 },
|
|
},{
|
|
.id = V4L2_CID_PRIVATE_BASE + 7,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Vertical Noise Reduction",
|
|
.minimum = SAA7191_VNR_MIN,
|
|
.maximum = SAA7191_VNR_MAX,
|
|
.step = 1,
|
|
.default_value = SAA7191_VNR_DEFAULT,
|
|
.flags = 0,
|
|
.reserved = { SAA7191_CONTROL_VNR, 0 },
|
|
}
|
|
};
|
|
|
|
/* VINO I2C bus functions */
|
|
|
|
unsigned i2c_vino_getctrl(void *data)
|
|
{
|
|
return vino->i2c_control;
|
|
}
|
|
|
|
void i2c_vino_setctrl(void *data, unsigned val)
|
|
{
|
|
vino->i2c_control = val;
|
|
}
|
|
|
|
unsigned i2c_vino_rdata(void *data)
|
|
{
|
|
return vino->i2c_data;
|
|
}
|
|
|
|
void i2c_vino_wdata(void *data, unsigned val)
|
|
{
|
|
vino->i2c_data = val;
|
|
}
|
|
|
|
static struct i2c_algo_sgi_data i2c_sgi_vino_data =
|
|
{
|
|
.getctrl = &i2c_vino_getctrl,
|
|
.setctrl = &i2c_vino_setctrl,
|
|
.rdata = &i2c_vino_rdata,
|
|
.wdata = &i2c_vino_wdata,
|
|
.xfer_timeout = 200,
|
|
.ack_timeout = 1000,
|
|
};
|
|
|
|
/*
|
|
* There are two possible clients on VINO I2C bus, so we limit usage only
|
|
* to them.
|
|
*/
|
|
static int i2c_vino_client_reg(struct i2c_client *client)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
switch (client->driver->id) {
|
|
case I2C_DRIVERID_SAA7191:
|
|
if (vino_drvdata->decoder.driver)
|
|
ret = -EBUSY;
|
|
else
|
|
vino_drvdata->decoder.driver = client;
|
|
break;
|
|
case I2C_DRIVERID_INDYCAM:
|
|
if (vino_drvdata->camera.driver)
|
|
ret = -EBUSY;
|
|
else
|
|
vino_drvdata->camera.driver = client;
|
|
break;
|
|
default:
|
|
ret = -ENODEV;
|
|
}
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int i2c_vino_client_unreg(struct i2c_client *client)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
if (client == vino_drvdata->decoder.driver) {
|
|
if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL)
|
|
ret = -EBUSY;
|
|
else
|
|
vino_drvdata->decoder.driver = NULL;
|
|
} else if (client == vino_drvdata->camera.driver) {
|
|
if (vino_drvdata->camera.owner != VINO_NO_CHANNEL)
|
|
ret = -EBUSY;
|
|
else
|
|
vino_drvdata->camera.driver = NULL;
|
|
}
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct i2c_adapter vino_i2c_adapter =
|
|
{
|
|
.name = "VINO I2C bus",
|
|
.id = I2C_HW_SGI_VINO,
|
|
.algo_data = &i2c_sgi_vino_data,
|
|
.client_register = &i2c_vino_client_reg,
|
|
.client_unregister = &i2c_vino_client_unreg,
|
|
};
|
|
|
|
static int vino_i2c_add_bus(void)
|
|
{
|
|
return i2c_sgi_add_bus(&vino_i2c_adapter);
|
|
}
|
|
|
|
static int vino_i2c_del_bus(void)
|
|
{
|
|
return i2c_del_adapter(&vino_i2c_adapter);
|
|
}
|
|
|
|
static int i2c_camera_command(unsigned int cmd, void *arg)
|
|
{
|
|
return vino_drvdata->camera.driver->
|
|
driver->command(vino_drvdata->camera.driver,
|
|
cmd, arg);
|
|
}
|
|
|
|
static int i2c_decoder_command(unsigned int cmd, void *arg)
|
|
{
|
|
return vino_drvdata->decoder.driver->
|
|
driver->command(vino_drvdata->decoder.driver,
|
|
cmd, arg);
|
|
}
|
|
|
|
/* VINO framebuffer/DMA descriptor management */
|
|
|
|
static void vino_free_buffer_with_count(struct vino_framebuffer *fb,
|
|
unsigned int count)
|
|
{
|
|
unsigned int i;
|
|
|
|
dprintk("vino_free_buffer_with_count(): count = %d\n", count);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
ClearPageReserved(virt_to_page(fb->desc_table.virtual[i]));
|
|
dma_unmap_single(NULL,
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
free_page(fb->desc_table.virtual[i]);
|
|
}
|
|
|
|
dma_free_coherent(NULL,
|
|
VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) *
|
|
sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu,
|
|
fb->desc_table.dma);
|
|
kfree(fb->desc_table.virtual);
|
|
|
|
memset(fb, 0, sizeof(struct vino_framebuffer));
|
|
}
|
|
|
|
static void vino_free_buffer(struct vino_framebuffer *fb)
|
|
{
|
|
vino_free_buffer_with_count(fb, fb->desc_table.page_count);
|
|
}
|
|
|
|
static int vino_allocate_buffer(struct vino_framebuffer *fb,
|
|
unsigned int size)
|
|
{
|
|
unsigned int count, i, j;
|
|
int ret = 0;
|
|
|
|
dprintk("vino_allocate_buffer():\n");
|
|
|
|
if (size < 1)
|
|
return -EINVAL;
|
|
|
|
memset(fb, 0, sizeof(struct vino_framebuffer));
|
|
|
|
count = ((size / PAGE_SIZE) + 4) & ~3;
|
|
|
|
dprintk("vino_allocate_buffer(): size = %d, count = %d\n",
|
|
size, count);
|
|
|
|
/* allocate memory for table with virtual (page) addresses */
|
|
fb->desc_table.virtual = (unsigned long *)
|
|
kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
|
|
if (!fb->desc_table.virtual)
|
|
return -ENOMEM;
|
|
|
|
/* allocate memory for table with dma addresses
|
|
* (has space for four extra descriptors) */
|
|
fb->desc_table.dma_cpu =
|
|
dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
|
|
sizeof(dma_addr_t), &fb->desc_table.dma,
|
|
GFP_KERNEL | GFP_DMA);
|
|
if (!fb->desc_table.dma_cpu) {
|
|
ret = -ENOMEM;
|
|
goto out_free_virtual;
|
|
}
|
|
|
|
/* allocate pages for the buffer and acquire the according
|
|
* dma addresses */
|
|
for (i = 0; i < count; i++) {
|
|
dma_addr_t dma_data_addr;
|
|
|
|
fb->desc_table.virtual[i] =
|
|
get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
|
if (!fb->desc_table.virtual[i]) {
|
|
ret = -ENOBUFS;
|
|
break;
|
|
}
|
|
|
|
dma_data_addr =
|
|
dma_map_single(NULL,
|
|
(void *)fb->desc_table.virtual[i],
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
|
|
for (j = 0; j < VINO_PAGE_RATIO; j++) {
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
|
|
dma_data_addr + VINO_PAGE_SIZE * j;
|
|
}
|
|
|
|
SetPageReserved(virt_to_page(fb->desc_table.virtual[i]));
|
|
}
|
|
|
|
/* page_count needs to be set anyway, because the descriptor table has
|
|
* been allocated according to this number */
|
|
fb->desc_table.page_count = count;
|
|
|
|
if (ret) {
|
|
/* the descriptor with index i doesn't contain
|
|
* a valid address yet */
|
|
vino_free_buffer_with_count(fb, i);
|
|
return ret;
|
|
}
|
|
|
|
//fb->size = size;
|
|
fb->size = count * PAGE_SIZE;
|
|
fb->data_format = VINO_DATA_FMT_NONE;
|
|
|
|
/* set the dma stop-bit for the last (count+1)th descriptor */
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
|
|
return 0;
|
|
|
|
out_free_virtual:
|
|
kfree(fb->desc_table.virtual);
|
|
return ret;
|
|
}
|
|
|
|
#if 0
|
|
/* user buffers not fully implemented yet */
|
|
static int vino_prepare_user_buffer(struct vino_framebuffer *fb,
|
|
void *user,
|
|
unsigned int size)
|
|
{
|
|
unsigned int count, i, j;
|
|
int ret = 0;
|
|
|
|
dprintk("vino_prepare_user_buffer():\n");
|
|
|
|
if (size < 1)
|
|
return -EINVAL;
|
|
|
|
memset(fb, 0, sizeof(struct vino_framebuffer));
|
|
|
|
count = ((size / PAGE_SIZE)) & ~3;
|
|
|
|
dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n",
|
|
size, count);
|
|
|
|
/* allocate memory for table with virtual (page) addresses */
|
|
fb->desc_table.virtual = (unsigned long *)
|
|
kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
|
|
if (!fb->desc_table.virtual)
|
|
return -ENOMEM;
|
|
|
|
/* allocate memory for table with dma addresses
|
|
* (has space for four extra descriptors) */
|
|
fb->desc_table.dma_cpu =
|
|
dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
|
|
sizeof(dma_addr_t), &fb->desc_table.dma,
|
|
GFP_KERNEL | GFP_DMA);
|
|
if (!fb->desc_table.dma_cpu) {
|
|
ret = -ENOMEM;
|
|
goto out_free_virtual;
|
|
}
|
|
|
|
/* allocate pages for the buffer and acquire the according
|
|
* dma addresses */
|
|
for (i = 0; i < count; i++) {
|
|
dma_addr_t dma_data_addr;
|
|
|
|
fb->desc_table.virtual[i] =
|
|
get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
|
if (!fb->desc_table.virtual[i]) {
|
|
ret = -ENOBUFS;
|
|
break;
|
|
}
|
|
|
|
dma_data_addr =
|
|
dma_map_single(NULL,
|
|
(void *)fb->desc_table.virtual[i],
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
|
|
for (j = 0; j < VINO_PAGE_RATIO; j++) {
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
|
|
dma_data_addr + VINO_PAGE_SIZE * j;
|
|
}
|
|
|
|
SetPageReserved(virt_to_page(fb->desc_table.virtual[i]));
|
|
}
|
|
|
|
/* page_count needs to be set anyway, because the descriptor table has
|
|
* been allocated according to this number */
|
|
fb->desc_table.page_count = count;
|
|
|
|
if (ret) {
|
|
/* the descriptor with index i doesn't contain
|
|
* a valid address yet */
|
|
vino_free_buffer_with_count(fb, i);
|
|
return ret;
|
|
}
|
|
|
|
//fb->size = size;
|
|
fb->size = count * PAGE_SIZE;
|
|
|
|
/* set the dma stop-bit for the last (count+1)th descriptor */
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
|
|
return 0;
|
|
|
|
out_free_virtual:
|
|
kfree(fb->desc_table.virtual);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static void vino_sync_buffer(struct vino_framebuffer *fb)
|
|
{
|
|
int i;
|
|
|
|
dprintk("vino_sync_buffer():\n");
|
|
|
|
for (i = 0; i < fb->desc_table.page_count; i++)
|
|
dma_sync_single(NULL,
|
|
fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
}
|
|
|
|
/* Framebuffer fifo functions (need to be locked externally) */
|
|
|
|
static inline void vino_fifo_init(struct vino_framebuffer_fifo *f,
|
|
unsigned int length)
|
|
{
|
|
f->length = 0;
|
|
f->used = 0;
|
|
f->head = 0;
|
|
f->tail = 0;
|
|
|
|
if (length > VINO_FRAMEBUFFER_COUNT_MAX)
|
|
length = VINO_FRAMEBUFFER_COUNT_MAX;
|
|
|
|
f->length = length;
|
|
}
|
|
|
|
/* returns true/false */
|
|
static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f,
|
|
unsigned int id)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) {
|
|
if (f->data[i] == id)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if 0
|
|
/* returns true/false */
|
|
static inline int vino_fifo_full(struct vino_framebuffer_fifo *f)
|
|
{
|
|
return (f->used == f->length);
|
|
}
|
|
#endif
|
|
|
|
static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f)
|
|
{
|
|
return f->used;
|
|
}
|
|
|
|
static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id)
|
|
{
|
|
if (id >= f->length) {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
if (vino_fifo_has_id(f, id)) {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
if (f->used < f->length) {
|
|
f->data[f->tail] = id;
|
|
f->tail = (f->tail + 1) % f->length;
|
|
f->used++;
|
|
} else {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id)
|
|
{
|
|
if (f->used > 0) {
|
|
*id = f->data[f->head];
|
|
} else {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id)
|
|
{
|
|
if (f->used > 0) {
|
|
*id = f->data[f->head];
|
|
f->head = (f->head + 1) % f->length;
|
|
f->used--;
|
|
} else {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Framebuffer queue functions */
|
|
|
|
/* execute with queue_lock locked */
|
|
static void vino_queue_free_with_count(struct vino_framebuffer_queue *q,
|
|
unsigned int length)
|
|
{
|
|
unsigned int i;
|
|
|
|
q->length = 0;
|
|
memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo));
|
|
memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo));
|
|
for (i = 0; i < length; i++) {
|
|
dprintk("vino_queue_free_with_count(): freeing buffer %d\n",
|
|
i);
|
|
vino_free_buffer(q->buffer[i]);
|
|
kfree(q->buffer[i]);
|
|
}
|
|
|
|
q->type = VINO_MEMORY_NONE;
|
|
q->magic = 0;
|
|
}
|
|
|
|
static void vino_queue_free(struct vino_framebuffer_queue *q)
|
|
{
|
|
dprintk("vino_queue_free():\n");
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC)
|
|
return;
|
|
if (q->type != VINO_MEMORY_MMAP)
|
|
return;
|
|
|
|
mutex_lock(&q->queue_mutex);
|
|
|
|
vino_queue_free_with_count(q, q->length);
|
|
|
|
mutex_unlock(&q->queue_mutex);
|
|
}
|
|
|
|
static int vino_queue_init(struct vino_framebuffer_queue *q,
|
|
unsigned int *length)
|
|
{
|
|
unsigned int i;
|
|
int ret = 0;
|
|
|
|
dprintk("vino_queue_init(): length = %d\n", *length);
|
|
|
|
if (q->magic == VINO_QUEUE_MAGIC) {
|
|
dprintk("vino_queue_init(): queue already initialized!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (q->type != VINO_MEMORY_NONE) {
|
|
dprintk("vino_queue_init(): queue already initialized!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (*length < 1)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&q->queue_mutex);
|
|
|
|
if (*length > VINO_FRAMEBUFFER_COUNT_MAX)
|
|
*length = VINO_FRAMEBUFFER_COUNT_MAX;
|
|
|
|
q->length = 0;
|
|
|
|
for (i = 0; i < *length; i++) {
|
|
dprintk("vino_queue_init(): allocating buffer %d\n", i);
|
|
q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer),
|
|
GFP_KERNEL);
|
|
if (!q->buffer[i]) {
|
|
dprintk("vino_queue_init(): kmalloc() failed\n");
|
|
ret = -ENOMEM;
|
|
break;
|
|
}
|
|
|
|
ret = vino_allocate_buffer(q->buffer[i],
|
|
VINO_FRAMEBUFFER_SIZE);
|
|
if (ret) {
|
|
kfree(q->buffer[i]);
|
|
dprintk("vino_queue_init(): "
|
|
"vino_allocate_buffer() failed\n");
|
|
break;
|
|
}
|
|
|
|
q->buffer[i]->id = i;
|
|
if (i > 0) {
|
|
q->buffer[i]->offset = q->buffer[i - 1]->offset +
|
|
q->buffer[i - 1]->size;
|
|
} else {
|
|
q->buffer[i]->offset = 0;
|
|
}
|
|
|
|
spin_lock_init(&q->buffer[i]->state_lock);
|
|
|
|
dprintk("vino_queue_init(): buffer = %d, offset = %d, "
|
|
"size = %d\n", i, q->buffer[i]->offset,
|
|
q->buffer[i]->size);
|
|
}
|
|
|
|
if (ret) {
|
|
vino_queue_free_with_count(q, i);
|
|
*length = 0;
|
|
} else {
|
|
q->length = *length;
|
|
vino_fifo_init(&q->in, q->length);
|
|
vino_fifo_init(&q->out, q->length);
|
|
q->type = VINO_MEMORY_MMAP;
|
|
q->magic = VINO_QUEUE_MAGIC;
|
|
}
|
|
|
|
mutex_unlock(&q->queue_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct vino_framebuffer *vino_queue_add(struct
|
|
vino_framebuffer_queue *q,
|
|
unsigned int id)
|
|
{
|
|
struct vino_framebuffer *ret = NULL;
|
|
unsigned int total;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_queue_add(): id = %d\n", id);
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
if (id >= q->length)
|
|
goto out;
|
|
|
|
/* not needed?: if (vino_fifo_full(&q->out)) {
|
|
goto out;
|
|
}*/
|
|
/* check that outgoing queue isn't already full
|
|
* (or that it won't become full) */
|
|
total = vino_fifo_get_used(&q->in) +
|
|
vino_fifo_get_used(&q->out);
|
|
if (total >= q->length)
|
|
goto out;
|
|
|
|
if (vino_fifo_enqueue(&q->in, id))
|
|
goto out;
|
|
|
|
ret = q->buffer[id];
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct vino_framebuffer *vino_queue_transfer(struct
|
|
vino_framebuffer_queue *q)
|
|
{
|
|
struct vino_framebuffer *ret = NULL;
|
|
struct vino_framebuffer *fb;
|
|
int id;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_queue_transfer():\n");
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
// now this actually removes an entry from the incoming queue
|
|
if (vino_fifo_dequeue(&q->in, &id)) {
|
|
goto out;
|
|
}
|
|
|
|
dprintk("vino_queue_transfer(): id = %d\n", id);
|
|
fb = q->buffer[id];
|
|
|
|
// we have already checked that the outgoing queue is not full, but...
|
|
if (vino_fifo_enqueue(&q->out, id)) {
|
|
printk(KERN_ERR "vino_queue_transfer(): "
|
|
"outgoing queue is full, this shouldn't happen!\n");
|
|
goto out;
|
|
}
|
|
|
|
ret = fb;
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* returns true/false */
|
|
static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q,
|
|
unsigned int id)
|
|
{
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
ret = vino_fifo_has_id(&q->in, id);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* returns true/false */
|
|
static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q,
|
|
unsigned int id)
|
|
{
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
ret = vino_fifo_has_id(&q->out, id);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_queue_get_incoming(struct vino_framebuffer_queue *q,
|
|
unsigned int *used)
|
|
{
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0) {
|
|
ret = VINO_QUEUE_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
*used = vino_fifo_get_used(&q->in);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q,
|
|
unsigned int *used)
|
|
{
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0) {
|
|
ret = VINO_QUEUE_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
*used = vino_fifo_get_used(&q->out);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if 0
|
|
static int vino_queue_get_total(struct vino_framebuffer_queue *q,
|
|
unsigned int *total)
|
|
{
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return VINO_QUEUE_ERROR;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0) {
|
|
ret = VINO_QUEUE_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
*total = vino_fifo_get_used(&q->in) +
|
|
vino_fifo_get_used(&q->out);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static struct vino_framebuffer *vino_queue_peek(struct
|
|
vino_framebuffer_queue *q,
|
|
unsigned int *id)
|
|
{
|
|
struct vino_framebuffer *ret = NULL;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
if (vino_fifo_peek(&q->in, id)) {
|
|
goto out;
|
|
}
|
|
|
|
ret = q->buffer[*id];
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct vino_framebuffer *vino_queue_remove(struct
|
|
vino_framebuffer_queue *q,
|
|
unsigned int *id)
|
|
{
|
|
struct vino_framebuffer *ret = NULL;
|
|
unsigned long flags;
|
|
dprintk("vino_queue_remove():\n");
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
if (vino_fifo_dequeue(&q->out, id)) {
|
|
goto out;
|
|
}
|
|
|
|
dprintk("vino_queue_remove(): id = %d\n", *id);
|
|
ret = q->buffer[*id];
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct
|
|
vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q,
|
|
unsigned int id)
|
|
{
|
|
struct vino_framebuffer *ret = NULL;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
|
|
if (q->length == 0)
|
|
goto out;
|
|
|
|
if (id >= q->length)
|
|
goto out;
|
|
|
|
ret = q->buffer[id];
|
|
out:
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q)
|
|
{
|
|
unsigned int length = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return length;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
length = q->length;
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return length;
|
|
}
|
|
|
|
static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q)
|
|
{
|
|
unsigned int i;
|
|
int ret = 0;
|
|
unsigned long flags;
|
|
|
|
if (q->magic != VINO_QUEUE_MAGIC) {
|
|
return ret;
|
|
}
|
|
|
|
spin_lock_irqsave(&q->queue_lock, flags);
|
|
for (i = 0; i < q->length; i++) {
|
|
if (q->buffer[i]->map_count > 0) {
|
|
ret = 1;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&q->queue_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* VINO functions */
|
|
|
|
/* execute with input_lock locked */
|
|
static void vino_update_line_size(struct vino_channel_settings *vcs)
|
|
{
|
|
unsigned int w = vcs->clipping.right - vcs->clipping.left;
|
|
unsigned int d = vcs->decimation;
|
|
unsigned int bpp = vino_data_formats[vcs->data_format].bpp;
|
|
unsigned int lsize;
|
|
|
|
dprintk("update_line_size(): before: w = %d, d = %d, "
|
|
"line_size = %d\n", w, d, vcs->line_size);
|
|
|
|
/* line size must be multiple of 8 bytes */
|
|
lsize = (bpp * (w / d)) & ~7;
|
|
w = (lsize / bpp) * d;
|
|
|
|
vcs->clipping.right = vcs->clipping.left + w;
|
|
vcs->line_size = lsize;
|
|
|
|
dprintk("update_line_size(): after: w = %d, d = %d, "
|
|
"line_size = %d\n", w, d, vcs->line_size);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static void vino_set_clipping(struct vino_channel_settings *vcs,
|
|
unsigned int x, unsigned int y,
|
|
unsigned int w, unsigned int h)
|
|
{
|
|
unsigned int maxwidth, maxheight;
|
|
unsigned int d;
|
|
|
|
maxwidth = vino_data_norms[vcs->data_norm].width;
|
|
maxheight = vino_data_norms[vcs->data_norm].height;
|
|
d = vcs->decimation;
|
|
|
|
y &= ~1; /* odd/even fields */
|
|
|
|
if (x > maxwidth) {
|
|
x = 0;
|
|
}
|
|
if (y > maxheight) {
|
|
y = 0;
|
|
}
|
|
|
|
if (((w / d) < VINO_MIN_WIDTH)
|
|
|| ((h / d) < VINO_MIN_HEIGHT)) {
|
|
w = VINO_MIN_WIDTH * d;
|
|
h = VINO_MIN_HEIGHT * d;
|
|
}
|
|
|
|
if ((x + w) > maxwidth) {
|
|
w = maxwidth - x;
|
|
if ((w / d) < VINO_MIN_WIDTH)
|
|
x = maxwidth - VINO_MIN_WIDTH * d;
|
|
}
|
|
if ((y + h) > maxheight) {
|
|
h = maxheight - y;
|
|
if ((h / d) < VINO_MIN_HEIGHT)
|
|
y = maxheight - VINO_MIN_HEIGHT * d;
|
|
}
|
|
|
|
vcs->clipping.left = x;
|
|
vcs->clipping.top = y;
|
|
vcs->clipping.right = x + w;
|
|
vcs->clipping.bottom = y + h;
|
|
|
|
vino_update_line_size(vcs);
|
|
|
|
dprintk("clipping %d, %d, %d, %d / %d - %d\n",
|
|
vcs->clipping.left, vcs->clipping.top, vcs->clipping.right,
|
|
vcs->clipping.bottom, vcs->decimation, vcs->line_size);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static inline void vino_set_default_clipping(struct vino_channel_settings *vcs)
|
|
{
|
|
vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width,
|
|
vino_data_norms[vcs->data_norm].height);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static void vino_set_scaling(struct vino_channel_settings *vcs,
|
|
unsigned int w, unsigned int h)
|
|
{
|
|
unsigned int x, y, curw, curh, d;
|
|
|
|
x = vcs->clipping.left;
|
|
y = vcs->clipping.top;
|
|
curw = vcs->clipping.right - vcs->clipping.left;
|
|
curh = vcs->clipping.bottom - vcs->clipping.top;
|
|
|
|
d = max(curw / w, curh / h);
|
|
|
|
dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n",
|
|
w, h, curw, curh, d);
|
|
|
|
if (d < 1) {
|
|
d = 1;
|
|
} else if (d > 8) {
|
|
d = 8;
|
|
}
|
|
|
|
vcs->decimation = d;
|
|
vino_set_clipping(vcs, x, y, w * d, h * d);
|
|
|
|
dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left,
|
|
vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom,
|
|
vcs->decimation, vcs->line_size);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static inline void vino_set_default_scaling(struct vino_channel_settings *vcs)
|
|
{
|
|
vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left,
|
|
vcs->clipping.bottom - vcs->clipping.top);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static void vino_set_framerate(struct vino_channel_settings *vcs,
|
|
unsigned int fps)
|
|
{
|
|
unsigned int mask;
|
|
|
|
switch (vcs->data_norm) {
|
|
case VINO_DATA_NORM_NTSC:
|
|
case VINO_DATA_NORM_D1:
|
|
fps = (unsigned int)(fps / 6) * 6; // FIXME: round!
|
|
|
|
if (fps < vino_data_norms[vcs->data_norm].fps_min)
|
|
fps = vino_data_norms[vcs->data_norm].fps_min;
|
|
if (fps > vino_data_norms[vcs->data_norm].fps_max)
|
|
fps = vino_data_norms[vcs->data_norm].fps_max;
|
|
|
|
switch (fps) {
|
|
case 6:
|
|
mask = 0x003;
|
|
break;
|
|
case 12:
|
|
mask = 0x0c3;
|
|
break;
|
|
case 18:
|
|
mask = 0x333;
|
|
break;
|
|
case 24:
|
|
mask = 0x3ff;
|
|
break;
|
|
case 30:
|
|
mask = 0xfff;
|
|
break;
|
|
default:
|
|
mask = VINO_FRAMERT_FULL;
|
|
}
|
|
vcs->framert_reg = VINO_FRAMERT_RT(mask);
|
|
break;
|
|
case VINO_DATA_NORM_PAL:
|
|
case VINO_DATA_NORM_SECAM:
|
|
fps = (unsigned int)(fps / 5) * 5; // FIXME: round!
|
|
|
|
if (fps < vino_data_norms[vcs->data_norm].fps_min)
|
|
fps = vino_data_norms[vcs->data_norm].fps_min;
|
|
if (fps > vino_data_norms[vcs->data_norm].fps_max)
|
|
fps = vino_data_norms[vcs->data_norm].fps_max;
|
|
|
|
switch (fps) {
|
|
case 5:
|
|
mask = 0x003;
|
|
break;
|
|
case 10:
|
|
mask = 0x0c3;
|
|
break;
|
|
case 15:
|
|
mask = 0x333;
|
|
break;
|
|
case 20:
|
|
mask = 0x0ff;
|
|
break;
|
|
case 25:
|
|
mask = 0x3ff;
|
|
break;
|
|
default:
|
|
mask = VINO_FRAMERT_FULL;
|
|
}
|
|
vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL;
|
|
break;
|
|
}
|
|
|
|
vcs->fps = fps;
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static inline void vino_set_default_framerate(struct
|
|
vino_channel_settings *vcs)
|
|
{
|
|
vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max);
|
|
}
|
|
|
|
/*
|
|
* Prepare VINO for DMA transfer...
|
|
* (execute only with vino_lock and input_lock locked)
|
|
*/
|
|
static int vino_dma_setup(struct vino_channel_settings *vcs,
|
|
struct vino_framebuffer *fb)
|
|
{
|
|
u32 ctrl, intr;
|
|
struct sgi_vino_channel *ch;
|
|
const struct vino_data_norm *norm;
|
|
|
|
dprintk("vino_dma_setup():\n");
|
|
|
|
vcs->field = 0;
|
|
fb->frame_counter = 0;
|
|
|
|
ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
|
|
norm = &vino_data_norms[vcs->data_norm];
|
|
|
|
ch->page_index = 0;
|
|
ch->line_count = 0;
|
|
|
|
/* VINO line size register is set 8 bytes less than actual */
|
|
ch->line_size = vcs->line_size - 8;
|
|
|
|
/* let VINO know where to transfer data */
|
|
ch->start_desc_tbl = fb->desc_table.dma;
|
|
ch->next_4_desc = fb->desc_table.dma;
|
|
|
|
/* give vino time to fetch the first four descriptors, 5 usec
|
|
* should be more than enough time */
|
|
udelay(VINO_DESC_FETCH_DELAY);
|
|
|
|
dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n",
|
|
ch->start_desc_tbl, ch->next_4_desc);
|
|
|
|
/* set the alpha register */
|
|
ch->alpha = vcs->alpha;
|
|
|
|
/* set clipping registers */
|
|
ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) |
|
|
VINO_CLIP_EVEN(norm->even.top +
|
|
vcs->clipping.top / 2) |
|
|
VINO_CLIP_X(vcs->clipping.left);
|
|
ch->clip_end = VINO_CLIP_ODD(norm->odd.top +
|
|
vcs->clipping.bottom / 2 - 1) |
|
|
VINO_CLIP_EVEN(norm->even.top +
|
|
vcs->clipping.bottom / 2 - 1) |
|
|
VINO_CLIP_X(vcs->clipping.right);
|
|
|
|
/* set the size of actual content in the buffer (DECIMATION !) */
|
|
fb->data_size = ((vcs->clipping.right - vcs->clipping.left) /
|
|
vcs->decimation) *
|
|
((vcs->clipping.bottom - vcs->clipping.top) /
|
|
vcs->decimation) *
|
|
vino_data_formats[vcs->data_format].bpp;
|
|
|
|
ch->frame_rate = vcs->framert_reg;
|
|
|
|
ctrl = vino->control;
|
|
intr = vino->intr_status;
|
|
|
|
if (vcs->channel == VINO_CHANNEL_A) {
|
|
/* All interrupt conditions for this channel was cleared
|
|
* so clear the interrupt status register and enable
|
|
* interrupts */
|
|
intr &= ~VINO_INTSTAT_A;
|
|
ctrl |= VINO_CTRL_A_INT;
|
|
|
|
/* enable synchronization */
|
|
ctrl |= VINO_CTRL_A_SYNC_ENBL;
|
|
|
|
/* enable frame assembly */
|
|
ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL;
|
|
|
|
/* set decimation used */
|
|
if (vcs->decimation < 2)
|
|
ctrl &= ~VINO_CTRL_A_DEC_ENBL;
|
|
else {
|
|
ctrl |= VINO_CTRL_A_DEC_ENBL;
|
|
ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK;
|
|
ctrl |= (vcs->decimation - 1) <<
|
|
VINO_CTRL_A_DEC_SCALE_SHIFT;
|
|
}
|
|
|
|
/* select input interface */
|
|
if (vcs->input == VINO_INPUT_D1)
|
|
ctrl |= VINO_CTRL_A_SELECT;
|
|
else
|
|
ctrl &= ~VINO_CTRL_A_SELECT;
|
|
|
|
/* palette */
|
|
ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB |
|
|
VINO_CTRL_A_DITHER);
|
|
} else {
|
|
intr &= ~VINO_INTSTAT_B;
|
|
ctrl |= VINO_CTRL_B_INT;
|
|
|
|
ctrl |= VINO_CTRL_B_SYNC_ENBL;
|
|
ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL;
|
|
|
|
if (vcs->decimation < 2)
|
|
ctrl &= ~VINO_CTRL_B_DEC_ENBL;
|
|
else {
|
|
ctrl |= VINO_CTRL_B_DEC_ENBL;
|
|
ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK;
|
|
ctrl |= (vcs->decimation - 1) <<
|
|
VINO_CTRL_B_DEC_SCALE_SHIFT;
|
|
|
|
}
|
|
if (vcs->input == VINO_INPUT_D1)
|
|
ctrl |= VINO_CTRL_B_SELECT;
|
|
else
|
|
ctrl &= ~VINO_CTRL_B_SELECT;
|
|
|
|
ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB |
|
|
VINO_CTRL_B_DITHER);
|
|
}
|
|
|
|
/* set palette */
|
|
fb->data_format = vcs->data_format;
|
|
|
|
switch (vcs->data_format) {
|
|
case VINO_DATA_FMT_GREY:
|
|
ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
|
|
VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY;
|
|
break;
|
|
case VINO_DATA_FMT_RGB32:
|
|
ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
|
|
VINO_CTRL_A_RGB : VINO_CTRL_B_RGB;
|
|
break;
|
|
case VINO_DATA_FMT_YUV:
|
|
/* nothing needs to be done */
|
|
break;
|
|
case VINO_DATA_FMT_RGB332:
|
|
ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
|
|
VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER :
|
|
VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER;
|
|
break;
|
|
}
|
|
|
|
vino->intr_status = intr;
|
|
vino->control = ctrl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* (execute only with vino_lock locked) */
|
|
static inline void vino_dma_start(struct vino_channel_settings *vcs)
|
|
{
|
|
u32 ctrl = vino->control;
|
|
|
|
dprintk("vino_dma_start():\n");
|
|
ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
|
|
VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL;
|
|
vino->control = ctrl;
|
|
}
|
|
|
|
/* (execute only with vino_lock locked) */
|
|
static inline void vino_dma_stop(struct vino_channel_settings *vcs)
|
|
{
|
|
u32 ctrl = vino->control;
|
|
|
|
ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
|
|
~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL;
|
|
ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
|
|
~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT;
|
|
vino->control = ctrl;
|
|
dprintk("vino_dma_stop():\n");
|
|
}
|
|
|
|
/*
|
|
* Load dummy page to descriptor registers. This prevents generating of
|
|
* spurious interrupts. (execute only with vino_lock locked)
|
|
*/
|
|
static void vino_clear_interrupt(struct vino_channel_settings *vcs)
|
|
{
|
|
struct sgi_vino_channel *ch;
|
|
|
|
ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
|
|
|
|
ch->page_index = 0;
|
|
ch->line_count = 0;
|
|
|
|
ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma;
|
|
ch->next_4_desc = vino_drvdata->dummy_desc_table.dma;
|
|
|
|
udelay(VINO_DESC_FETCH_DELAY);
|
|
dprintk("channel %c clear interrupt condition\n",
|
|
(vcs->channel == VINO_CHANNEL_A) ? 'A':'B');
|
|
}
|
|
|
|
static int vino_capture(struct vino_channel_settings *vcs,
|
|
struct vino_framebuffer *fb)
|
|
{
|
|
int err = 0;
|
|
unsigned long flags, flags2;
|
|
|
|
spin_lock_irqsave(&fb->state_lock, flags);
|
|
|
|
if (fb->state == VINO_FRAMEBUFFER_IN_USE)
|
|
err = -EBUSY;
|
|
fb->state = VINO_FRAMEBUFFER_IN_USE;
|
|
|
|
spin_unlock_irqrestore(&fb->state_lock, flags);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags2);
|
|
|
|
vino_dma_setup(vcs, fb);
|
|
vino_dma_start(vcs);
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2);
|
|
spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static
|
|
struct vino_framebuffer *vino_capture_enqueue(struct
|
|
vino_channel_settings *vcs,
|
|
unsigned int index)
|
|
{
|
|
struct vino_framebuffer *fb;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_capture_enqueue():\n");
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
|
|
fb = vino_queue_add(&vcs->fb_queue, index);
|
|
if (fb == NULL) {
|
|
dprintk("vino_capture_enqueue(): vino_queue_add() failed, "
|
|
"queue full?\n");
|
|
goto out;
|
|
}
|
|
out:
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
return fb;
|
|
}
|
|
|
|
static int vino_capture_next(struct vino_channel_settings *vcs, int start)
|
|
{
|
|
struct vino_framebuffer *fb;
|
|
unsigned int incoming, id;
|
|
int err = 0;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_capture_next():\n");
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
|
|
if (start) {
|
|
/* start capture only if capture isn't in progress already */
|
|
if (vcs->capturing) {
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
} else {
|
|
/* capture next frame:
|
|
* stop capture if capturing is not set */
|
|
if (!vcs->capturing) {
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
|
|
if (err) {
|
|
dprintk("vino_capture_next(): vino_queue_get_incoming() "
|
|
"failed\n");
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
if (incoming == 0) {
|
|
dprintk("vino_capture_next(): no buffers available\n");
|
|
goto out;
|
|
}
|
|
|
|
fb = vino_queue_peek(&vcs->fb_queue, &id);
|
|
if (fb == NULL) {
|
|
dprintk("vino_capture_next(): vino_queue_peek() failed\n");
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (start) {
|
|
vcs->capturing = 1;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
err = vino_capture(vcs, fb);
|
|
|
|
return err;
|
|
|
|
out:
|
|
vcs->capturing = 0;
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static inline int vino_is_capturing(struct vino_channel_settings *vcs)
|
|
{
|
|
int ret;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
|
|
ret = vcs->capturing;
|
|
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* waits until a frame is captured */
|
|
static int vino_wait_for_frame(struct vino_channel_settings *vcs)
|
|
{
|
|
wait_queue_t wait;
|
|
int err = 0;
|
|
|
|
dprintk("vino_wait_for_frame():\n");
|
|
|
|
init_waitqueue_entry(&wait, current);
|
|
/* add ourselves into wait queue */
|
|
add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
|
|
|
|
/* to ensure that schedule_timeout will return immediately
|
|
* if VINO interrupt was triggered meanwhile */
|
|
schedule_timeout_interruptible(msecs_to_jiffies(100));
|
|
|
|
if (signal_pending(current))
|
|
err = -EINTR;
|
|
|
|
remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
|
|
|
|
dprintk("vino_wait_for_frame(): waiting for frame %s\n",
|
|
err ? "failed" : "ok");
|
|
|
|
return err;
|
|
}
|
|
|
|
/* the function assumes that PAGE_SIZE % 4 == 0 */
|
|
static void vino_convert_to_rgba(struct vino_framebuffer *fb) {
|
|
unsigned char *pageptr;
|
|
unsigned int page, i;
|
|
unsigned char a;
|
|
|
|
for (page = 0; page < fb->desc_table.page_count; page++) {
|
|
pageptr = (unsigned char *)fb->desc_table.virtual[page];
|
|
|
|
for (i = 0; i < PAGE_SIZE; i += 4) {
|
|
a = pageptr[0];
|
|
pageptr[0] = pageptr[3];
|
|
pageptr[1] = pageptr[2];
|
|
pageptr[2] = pageptr[1];
|
|
pageptr[3] = a;
|
|
pageptr += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* checks if the buffer is in correct state and syncs data */
|
|
static int vino_check_buffer(struct vino_channel_settings *vcs,
|
|
struct vino_framebuffer *fb)
|
|
{
|
|
int err = 0;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_check_buffer():\n");
|
|
|
|
spin_lock_irqsave(&fb->state_lock, flags);
|
|
switch (fb->state) {
|
|
case VINO_FRAMEBUFFER_IN_USE:
|
|
err = -EIO;
|
|
break;
|
|
case VINO_FRAMEBUFFER_READY:
|
|
vino_sync_buffer(fb);
|
|
fb->state = VINO_FRAMEBUFFER_UNUSED;
|
|
break;
|
|
default:
|
|
err = -EINVAL;
|
|
}
|
|
spin_unlock_irqrestore(&fb->state_lock, flags);
|
|
|
|
if (!err) {
|
|
if (vino_pixel_conversion
|
|
&& (fb->data_format == VINO_DATA_FMT_RGB32)) {
|
|
vino_convert_to_rgba(fb);
|
|
}
|
|
} else if (err && (err != -EINVAL)) {
|
|
dprintk("vino_check_buffer(): buffer not ready\n");
|
|
|
|
spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
|
|
vino_dma_stop(vcs);
|
|
vino_clear_interrupt(vcs);
|
|
spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/* forcefully terminates capture */
|
|
static void vino_capture_stop(struct vino_channel_settings *vcs)
|
|
{
|
|
unsigned int incoming = 0, outgoing = 0, id;
|
|
unsigned long flags, flags2;
|
|
|
|
dprintk("vino_capture_stop():\n");
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
|
|
/* unset capturing to stop queue processing */
|
|
vcs->capturing = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->vino_lock, flags2);
|
|
|
|
vino_dma_stop(vcs);
|
|
vino_clear_interrupt(vcs);
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2);
|
|
|
|
/* remove all items from the queue */
|
|
if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
|
|
dprintk("vino_capture_stop(): "
|
|
"vino_queue_get_incoming() failed\n");
|
|
goto out;
|
|
}
|
|
while (incoming > 0) {
|
|
vino_queue_transfer(&vcs->fb_queue);
|
|
|
|
if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
|
|
dprintk("vino_capture_stop(): "
|
|
"vino_queue_get_incoming() failed\n");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
|
|
dprintk("vino_capture_stop(): "
|
|
"vino_queue_get_outgoing() failed\n");
|
|
goto out;
|
|
}
|
|
while (outgoing > 0) {
|
|
vino_queue_remove(&vcs->fb_queue, &id);
|
|
|
|
if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
|
|
dprintk("vino_capture_stop(): "
|
|
"vino_queue_get_outgoing() failed\n");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
}
|
|
|
|
#if 0
|
|
static int vino_capture_failed(struct vino_channel_settings *vcs)
|
|
{
|
|
struct vino_framebuffer *fb;
|
|
unsigned long flags;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
dprintk("vino_capture_failed():\n");
|
|
|
|
spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
|
|
|
|
vino_dma_stop(vcs);
|
|
vino_clear_interrupt(vcs);
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
|
|
|
|
ret = vino_queue_get_incoming(&vcs->fb_queue, &i);
|
|
if (ret == VINO_QUEUE_ERROR) {
|
|
dprintk("vino_queue_get_incoming() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
if (i == 0) {
|
|
/* no buffers to process */
|
|
return 0;
|
|
}
|
|
|
|
fb = vino_queue_peek(&vcs->fb_queue, &i);
|
|
if (fb == NULL) {
|
|
dprintk("vino_queue_peek() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
spin_lock_irqsave(&fb->state_lock, flags);
|
|
if (fb->state == VINO_FRAMEBUFFER_IN_USE) {
|
|
fb->state = VINO_FRAMEBUFFER_UNUSED;
|
|
vino_queue_transfer(&vcs->fb_queue);
|
|
vino_queue_remove(&vcs->fb_queue, &i);
|
|
/* we should actually discard the newest frame,
|
|
* but who cares ... */
|
|
}
|
|
spin_unlock_irqrestore(&fb->state_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static void vino_skip_frame(struct vino_channel_settings *vcs)
|
|
{
|
|
struct vino_framebuffer *fb;
|
|
unsigned long flags;
|
|
unsigned int id;
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
fb = vino_queue_peek(&vcs->fb_queue, &id);
|
|
if (!fb) {
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
dprintk("vino_skip_frame(): vino_queue_peek() failed!\n");
|
|
return;
|
|
}
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
spin_lock_irqsave(&fb->state_lock, flags);
|
|
fb->state = VINO_FRAMEBUFFER_UNUSED;
|
|
spin_unlock_irqrestore(&fb->state_lock, flags);
|
|
|
|
vino_capture_next(vcs, 0);
|
|
}
|
|
|
|
static void vino_frame_done(struct vino_channel_settings *vcs)
|
|
{
|
|
struct vino_framebuffer *fb;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vcs->capture_lock, flags);
|
|
fb = vino_queue_transfer(&vcs->fb_queue);
|
|
if (!fb) {
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
dprintk("vino_frame_done(): vino_queue_transfer() failed!\n");
|
|
return;
|
|
}
|
|
spin_unlock_irqrestore(&vcs->capture_lock, flags);
|
|
|
|
fb->frame_counter = vcs->int_data.frame_counter;
|
|
memcpy(&fb->timestamp, &vcs->int_data.timestamp,
|
|
sizeof(struct timeval));
|
|
|
|
spin_lock_irqsave(&fb->state_lock, flags);
|
|
if (fb->state == VINO_FRAMEBUFFER_IN_USE)
|
|
fb->state = VINO_FRAMEBUFFER_READY;
|
|
spin_unlock_irqrestore(&fb->state_lock, flags);
|
|
|
|
wake_up(&vcs->fb_queue.frame_wait_queue);
|
|
|
|
vino_capture_next(vcs, 0);
|
|
}
|
|
|
|
static void vino_capture_tasklet(unsigned long channel) {
|
|
struct vino_channel_settings *vcs;
|
|
|
|
vcs = (channel == VINO_CHANNEL_A)
|
|
? &vino_drvdata->a : &vino_drvdata->b;
|
|
|
|
if (vcs->int_data.skip)
|
|
vcs->int_data.skip_count++;
|
|
|
|
if (vcs->int_data.skip && (vcs->int_data.skip_count
|
|
<= VINO_MAX_FRAME_SKIP_COUNT)) {
|
|
vino_skip_frame(vcs);
|
|
} else {
|
|
vcs->int_data.skip_count = 0;
|
|
vino_frame_done(vcs);
|
|
}
|
|
}
|
|
|
|
static irqreturn_t vino_interrupt(int irq, void *dev_id)
|
|
{
|
|
u32 ctrl, intr;
|
|
unsigned int fc_a, fc_b;
|
|
int handled_a = 0, skip_a = 0, done_a = 0;
|
|
int handled_b = 0, skip_b = 0, done_b = 0;
|
|
|
|
#ifdef VINO_DEBUG_INT
|
|
int loop = 0;
|
|
unsigned int line_count = vino->a.line_count,
|
|
page_index = vino->a.page_index,
|
|
field_counter = vino->a.field_counter,
|
|
start_desc_tbl = vino->a.start_desc_tbl,
|
|
next_4_desc = vino->a.next_4_desc;
|
|
unsigned int line_count_2,
|
|
page_index_2,
|
|
field_counter_2,
|
|
start_desc_tbl_2,
|
|
next_4_desc_2;
|
|
#endif
|
|
|
|
spin_lock(&vino_drvdata->vino_lock);
|
|
|
|
while ((intr = vino->intr_status)) {
|
|
fc_a = vino->a.field_counter >> 1;
|
|
fc_b = vino->b.field_counter >> 1;
|
|
|
|
/* handle error-interrupts in some special way ?
|
|
* --> skips frames */
|
|
if (intr & VINO_INTSTAT_A) {
|
|
if (intr & VINO_INTSTAT_A_EOF) {
|
|
vino_drvdata->a.field++;
|
|
if (vino_drvdata->a.field > 1) {
|
|
vino_dma_stop(&vino_drvdata->a);
|
|
vino_clear_interrupt(&vino_drvdata->a);
|
|
vino_drvdata->a.field = 0;
|
|
done_a = 1;
|
|
} else {
|
|
if (vino->a.page_index
|
|
!= vino_drvdata->a.line_size) {
|
|
vino->a.line_count = 0;
|
|
vino->a.page_index =
|
|
vino_drvdata->
|
|
a.line_size;
|
|
vino->a.next_4_desc =
|
|
vino->a.start_desc_tbl;
|
|
}
|
|
}
|
|
dprintk("channel A end-of-field "
|
|
"interrupt: %04x\n", intr);
|
|
} else {
|
|
vino_dma_stop(&vino_drvdata->a);
|
|
vino_clear_interrupt(&vino_drvdata->a);
|
|
vino_drvdata->a.field = 0;
|
|
skip_a = 1;
|
|
dprintk("channel A error interrupt: %04x\n",
|
|
intr);
|
|
}
|
|
|
|
#ifdef VINO_DEBUG_INT
|
|
line_count_2 = vino->a.line_count;
|
|
page_index_2 = vino->a.page_index;
|
|
field_counter_2 = vino->a.field_counter;
|
|
start_desc_tbl_2 = vino->a.start_desc_tbl;
|
|
next_4_desc_2 = vino->a.next_4_desc;
|
|
|
|
printk("intr = %04x, loop = %d, field = %d\n",
|
|
intr, loop, vino_drvdata->a.field);
|
|
printk("1- line count = %04d, page index = %04d, "
|
|
"start = %08x, next = %08x\n"
|
|
" fieldc = %d, framec = %d\n",
|
|
line_count, page_index, start_desc_tbl,
|
|
next_4_desc, field_counter, fc_a);
|
|
printk("12-line count = %04d, page index = %04d, "
|
|
" start = %08x, next = %08x\n",
|
|
line_count_2, page_index_2, start_desc_tbl_2,
|
|
next_4_desc_2);
|
|
|
|
if (done_a)
|
|
printk("\n");
|
|
#endif
|
|
}
|
|
|
|
if (intr & VINO_INTSTAT_B) {
|
|
if (intr & VINO_INTSTAT_B_EOF) {
|
|
vino_drvdata->b.field++;
|
|
if (vino_drvdata->b.field > 1) {
|
|
vino_dma_stop(&vino_drvdata->b);
|
|
vino_clear_interrupt(&vino_drvdata->b);
|
|
vino_drvdata->b.field = 0;
|
|
done_b = 1;
|
|
}
|
|
dprintk("channel B end-of-field "
|
|
"interrupt: %04x\n", intr);
|
|
} else {
|
|
vino_dma_stop(&vino_drvdata->b);
|
|
vino_clear_interrupt(&vino_drvdata->b);
|
|
vino_drvdata->b.field = 0;
|
|
skip_b = 1;
|
|
dprintk("channel B error interrupt: %04x\n",
|
|
intr);
|
|
}
|
|
}
|
|
|
|
/* Always remember to clear interrupt status.
|
|
* Disable VINO interrupts while we do this. */
|
|
ctrl = vino->control;
|
|
vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT);
|
|
vino->intr_status = ~intr;
|
|
vino->control = ctrl;
|
|
|
|
spin_unlock(&vino_drvdata->vino_lock);
|
|
|
|
if ((!handled_a) && (done_a || skip_a)) {
|
|
if (!skip_a) {
|
|
do_gettimeofday(&vino_drvdata->
|
|
a.int_data.timestamp);
|
|
vino_drvdata->a.int_data.frame_counter = fc_a;
|
|
}
|
|
vino_drvdata->a.int_data.skip = skip_a;
|
|
|
|
dprintk("channel A %s, interrupt: %d\n",
|
|
skip_a ? "skipping frame" : "frame done",
|
|
intr);
|
|
tasklet_hi_schedule(&vino_tasklet_a);
|
|
handled_a = 1;
|
|
}
|
|
|
|
if ((!handled_b) && (done_b || skip_b)) {
|
|
if (!skip_b) {
|
|
do_gettimeofday(&vino_drvdata->
|
|
b.int_data.timestamp);
|
|
vino_drvdata->b.int_data.frame_counter = fc_b;
|
|
}
|
|
vino_drvdata->b.int_data.skip = skip_b;
|
|
|
|
dprintk("channel B %s, interrupt: %d\n",
|
|
skip_b ? "skipping frame" : "frame done",
|
|
intr);
|
|
tasklet_hi_schedule(&vino_tasklet_b);
|
|
handled_b = 1;
|
|
}
|
|
|
|
#ifdef VINO_DEBUG_INT
|
|
loop++;
|
|
#endif
|
|
spin_lock(&vino_drvdata->vino_lock);
|
|
}
|
|
|
|
spin_unlock(&vino_drvdata->vino_lock);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* VINO video input management */
|
|
|
|
static int vino_get_saa7191_input(int input)
|
|
{
|
|
switch (input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
return SAA7191_INPUT_COMPOSITE;
|
|
case VINO_INPUT_SVIDEO:
|
|
return SAA7191_INPUT_SVIDEO;
|
|
default:
|
|
printk(KERN_ERR "VINO: vino_get_saa7191_input(): "
|
|
"invalid input!\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int vino_get_saa7191_norm(unsigned int data_norm)
|
|
{
|
|
switch (data_norm) {
|
|
case VINO_DATA_NORM_AUTO:
|
|
return SAA7191_NORM_AUTO;
|
|
case VINO_DATA_NORM_AUTO_EXT:
|
|
return SAA7191_NORM_AUTO_EXT;
|
|
case VINO_DATA_NORM_PAL:
|
|
return SAA7191_NORM_PAL;
|
|
case VINO_DATA_NORM_NTSC:
|
|
return SAA7191_NORM_NTSC;
|
|
case VINO_DATA_NORM_SECAM:
|
|
return SAA7191_NORM_SECAM;
|
|
default:
|
|
printk(KERN_ERR "VINO: vino_get_saa7191_norm(): "
|
|
"invalid norm!\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int vino_get_from_saa7191_norm(int saa7191_norm)
|
|
{
|
|
switch (saa7191_norm) {
|
|
case SAA7191_NORM_PAL:
|
|
return VINO_DATA_NORM_PAL;
|
|
case SAA7191_NORM_NTSC:
|
|
return VINO_DATA_NORM_NTSC;
|
|
case SAA7191_NORM_SECAM:
|
|
return VINO_DATA_NORM_SECAM;
|
|
default:
|
|
printk(KERN_ERR "VINO: vino_get_from_saa7191_norm(): "
|
|
"invalid norm!\n");
|
|
return VINO_DATA_NORM_NONE;
|
|
}
|
|
}
|
|
|
|
static int vino_saa7191_set_norm(unsigned int *data_norm)
|
|
{
|
|
int saa7191_norm, new_data_norm;
|
|
int err = 0;
|
|
|
|
saa7191_norm = vino_get_saa7191_norm(*data_norm);
|
|
|
|
err = i2c_decoder_command(DECODER_SAA7191_SET_NORM,
|
|
&saa7191_norm);
|
|
if (err)
|
|
goto out;
|
|
|
|
if ((*data_norm == VINO_DATA_NORM_AUTO)
|
|
|| (*data_norm == VINO_DATA_NORM_AUTO_EXT)) {
|
|
struct saa7191_status status;
|
|
|
|
err = i2c_decoder_command(DECODER_SAA7191_GET_STATUS,
|
|
&status);
|
|
if (err)
|
|
goto out;
|
|
|
|
new_data_norm =
|
|
vino_get_from_saa7191_norm(status.norm);
|
|
if (new_data_norm == VINO_DATA_NORM_NONE) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
*data_norm = (unsigned int)new_data_norm;
|
|
}
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static int vino_is_input_owner(struct vino_channel_settings *vcs)
|
|
{
|
|
switch(vcs->input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO:
|
|
return (vino_drvdata->decoder.owner == vcs->channel);
|
|
case VINO_INPUT_D1:
|
|
return (vino_drvdata->camera.owner == vcs->channel);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int vino_acquire_input(struct vino_channel_settings *vcs)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
dprintk("vino_acquire_input():\n");
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
/* First try D1 and then SAA7191 */
|
|
if (vino_drvdata->camera.driver
|
|
&& (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) {
|
|
i2c_use_client(vino_drvdata->camera.driver);
|
|
vino_drvdata->camera.owner = vcs->channel;
|
|
vcs->input = VINO_INPUT_D1;
|
|
vcs->data_norm = VINO_DATA_NORM_D1;
|
|
} else if (vino_drvdata->decoder.driver
|
|
&& (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) {
|
|
int input, data_norm;
|
|
int saa7191_input;
|
|
|
|
i2c_use_client(vino_drvdata->decoder.driver);
|
|
input = VINO_INPUT_COMPOSITE;
|
|
|
|
saa7191_input = vino_get_saa7191_input(input);
|
|
ret = i2c_decoder_command(DECODER_SET_INPUT,
|
|
&saa7191_input);
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
/* Don't hold spinlocks while auto-detecting norm
|
|
* as it may take a while... */
|
|
|
|
data_norm = VINO_DATA_NORM_AUTO_EXT;
|
|
|
|
ret = vino_saa7191_set_norm(&data_norm);
|
|
if ((ret == -EBUSY) || (ret == -EAGAIN)) {
|
|
data_norm = VINO_DATA_NORM_PAL;
|
|
ret = vino_saa7191_set_norm(&data_norm);
|
|
}
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
vino_drvdata->decoder.owner = vcs->channel;
|
|
|
|
vcs->input = input;
|
|
vcs->data_norm = data_norm;
|
|
} else {
|
|
vcs->input = (vcs->channel == VINO_CHANNEL_A) ?
|
|
vino_drvdata->b.input : vino_drvdata->a.input;
|
|
vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ?
|
|
vino_drvdata->b.data_norm : vino_drvdata->a.data_norm;
|
|
}
|
|
|
|
if (vcs->input == VINO_INPUT_NONE) {
|
|
ret = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
vino_set_default_clipping(vcs);
|
|
vino_set_default_scaling(vcs);
|
|
vino_set_default_framerate(vcs);
|
|
|
|
dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_set_input(struct vino_channel_settings *vcs, int input)
|
|
{
|
|
struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
|
|
&vino_drvdata->b : &vino_drvdata->a;
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
dprintk("vino_set_input():\n");
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if (vcs->input == input)
|
|
goto out;
|
|
|
|
switch (input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO:
|
|
if (!vino_drvdata->decoder.driver) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) {
|
|
i2c_use_client(vino_drvdata->decoder.driver);
|
|
vino_drvdata->decoder.owner = vcs->channel;
|
|
}
|
|
|
|
if (vino_drvdata->decoder.owner == vcs->channel) {
|
|
int data_norm;
|
|
int saa7191_input;
|
|
|
|
saa7191_input = vino_get_saa7191_input(input);
|
|
ret = i2c_decoder_command(DECODER_SET_INPUT,
|
|
&saa7191_input);
|
|
if (ret) {
|
|
vino_drvdata->decoder.owner = VINO_NO_CHANNEL;
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
/* Don't hold spinlocks while auto-detecting norm
|
|
* as it may take a while... */
|
|
|
|
data_norm = VINO_DATA_NORM_AUTO_EXT;
|
|
|
|
ret = vino_saa7191_set_norm(&data_norm);
|
|
if ((ret == -EBUSY) || (ret == -EAGAIN)) {
|
|
data_norm = VINO_DATA_NORM_PAL;
|
|
ret = vino_saa7191_set_norm(&data_norm);
|
|
}
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if (ret) {
|
|
vino_drvdata->decoder.owner = VINO_NO_CHANNEL;
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
vcs->input = input;
|
|
vcs->data_norm = data_norm;
|
|
} else {
|
|
if (input != vcs2->input) {
|
|
ret = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
vcs->input = input;
|
|
vcs->data_norm = vcs2->data_norm;
|
|
}
|
|
|
|
if (vino_drvdata->camera.owner == vcs->channel) {
|
|
/* Transfer the ownership or release the input */
|
|
if (vcs2->input == VINO_INPUT_D1) {
|
|
vino_drvdata->camera.owner = vcs2->channel;
|
|
} else {
|
|
i2c_release_client(vino_drvdata->
|
|
camera.driver);
|
|
vino_drvdata->camera.owner = VINO_NO_CHANNEL;
|
|
}
|
|
}
|
|
break;
|
|
case VINO_INPUT_D1:
|
|
if (!vino_drvdata->camera.driver) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) {
|
|
i2c_use_client(vino_drvdata->camera.driver);
|
|
vino_drvdata->camera.owner = vcs->channel;
|
|
}
|
|
|
|
if (vino_drvdata->decoder.owner == vcs->channel) {
|
|
/* Transfer the ownership or release the input */
|
|
if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
|
|
(vcs2->input == VINO_INPUT_SVIDEO)) {
|
|
vino_drvdata->decoder.owner = vcs2->channel;
|
|
} else {
|
|
i2c_release_client(vino_drvdata->
|
|
decoder.driver);
|
|
vino_drvdata->decoder.owner = VINO_NO_CHANNEL;
|
|
}
|
|
}
|
|
|
|
vcs->input = input;
|
|
vcs->data_norm = VINO_DATA_NORM_D1;
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
vino_set_default_clipping(vcs);
|
|
vino_set_default_scaling(vcs);
|
|
vino_set_default_framerate(vcs);
|
|
|
|
dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void vino_release_input(struct vino_channel_settings *vcs)
|
|
{
|
|
struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
|
|
&vino_drvdata->b : &vino_drvdata->a;
|
|
unsigned long flags;
|
|
|
|
dprintk("vino_release_input():\n");
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
/* Release ownership of the channel
|
|
* and if the other channel takes input from
|
|
* the same source, transfer the ownership */
|
|
if (vino_drvdata->camera.owner == vcs->channel) {
|
|
if (vcs2->input == VINO_INPUT_D1) {
|
|
vino_drvdata->camera.owner = vcs2->channel;
|
|
} else {
|
|
i2c_release_client(vino_drvdata->camera.driver);
|
|
vino_drvdata->camera.owner = VINO_NO_CHANNEL;
|
|
}
|
|
} else if (vino_drvdata->decoder.owner == vcs->channel) {
|
|
if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
|
|
(vcs2->input == VINO_INPUT_SVIDEO)) {
|
|
vino_drvdata->decoder.owner = vcs2->channel;
|
|
} else {
|
|
i2c_release_client(vino_drvdata->decoder.driver);
|
|
vino_drvdata->decoder.owner = VINO_NO_CHANNEL;
|
|
}
|
|
}
|
|
vcs->input = VINO_INPUT_NONE;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static int vino_set_data_norm(struct vino_channel_settings *vcs,
|
|
unsigned int data_norm,
|
|
unsigned long *flags)
|
|
{
|
|
int err = 0;
|
|
|
|
if (data_norm == vcs->data_norm)
|
|
return 0;
|
|
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1:
|
|
/* only one "norm" supported */
|
|
if ((data_norm != VINO_DATA_NORM_D1)
|
|
&& (data_norm != VINO_DATA_NORM_AUTO)
|
|
&& (data_norm != VINO_DATA_NORM_AUTO_EXT))
|
|
return -EINVAL;
|
|
break;
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO: {
|
|
if ((data_norm != VINO_DATA_NORM_PAL)
|
|
&& (data_norm != VINO_DATA_NORM_NTSC)
|
|
&& (data_norm != VINO_DATA_NORM_SECAM)
|
|
&& (data_norm != VINO_DATA_NORM_AUTO)
|
|
&& (data_norm != VINO_DATA_NORM_AUTO_EXT))
|
|
return -EINVAL;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags);
|
|
|
|
/* Don't hold spinlocks while setting norm
|
|
* as it may take a while... */
|
|
|
|
err = vino_saa7191_set_norm(&data_norm);
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, *flags);
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
vcs->data_norm = data_norm;
|
|
|
|
vino_set_default_clipping(vcs);
|
|
vino_set_default_scaling(vcs);
|
|
vino_set_default_framerate(vcs);
|
|
break;
|
|
}
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
/* V4L2 helper functions */
|
|
|
|
static int vino_find_data_format(__u32 pixelformat)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < VINO_DATA_FMT_COUNT; i++) {
|
|
if (vino_data_formats[i].pixelformat == pixelformat)
|
|
return i;
|
|
}
|
|
|
|
return VINO_DATA_FMT_NONE;
|
|
}
|
|
|
|
static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index)
|
|
{
|
|
int data_norm = VINO_DATA_NORM_NONE;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
switch(vcs->input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO:
|
|
if (index == 0) {
|
|
data_norm = VINO_DATA_NORM_PAL;
|
|
} else if (index == 1) {
|
|
data_norm = VINO_DATA_NORM_NTSC;
|
|
} else if (index == 2) {
|
|
data_norm = VINO_DATA_NORM_SECAM;
|
|
}
|
|
break;
|
|
case VINO_INPUT_D1:
|
|
if (index == 0) {
|
|
data_norm = VINO_DATA_NORM_D1;
|
|
}
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return data_norm;
|
|
}
|
|
|
|
static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index)
|
|
{
|
|
int input = VINO_INPUT_NONE;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) {
|
|
switch (index) {
|
|
case 0:
|
|
input = VINO_INPUT_COMPOSITE;
|
|
break;
|
|
case 1:
|
|
input = VINO_INPUT_SVIDEO;
|
|
break;
|
|
case 2:
|
|
input = VINO_INPUT_D1;
|
|
break;
|
|
}
|
|
} else if (vino_drvdata->decoder.driver) {
|
|
switch (index) {
|
|
case 0:
|
|
input = VINO_INPUT_COMPOSITE;
|
|
break;
|
|
case 1:
|
|
input = VINO_INPUT_SVIDEO;
|
|
break;
|
|
}
|
|
} else if (vino_drvdata->camera.driver) {
|
|
switch (index) {
|
|
case 0:
|
|
input = VINO_INPUT_D1;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return input;
|
|
}
|
|
|
|
/* execute with input_lock locked */
|
|
static __u32 vino_find_input_index(struct vino_channel_settings *vcs)
|
|
{
|
|
__u32 index = 0;
|
|
// FIXME: detect when no inputs available
|
|
|
|
if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) {
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
index = 0;
|
|
break;
|
|
case VINO_INPUT_SVIDEO:
|
|
index = 1;
|
|
break;
|
|
case VINO_INPUT_D1:
|
|
index = 2;
|
|
break;
|
|
}
|
|
} else if (vino_drvdata->decoder.driver) {
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_COMPOSITE:
|
|
index = 0;
|
|
break;
|
|
case VINO_INPUT_SVIDEO:
|
|
index = 1;
|
|
break;
|
|
}
|
|
} else if (vino_drvdata->camera.driver) {
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1:
|
|
index = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
/* V4L2 ioctls */
|
|
|
|
static void vino_v4l2_querycap(struct v4l2_capability *cap)
|
|
{
|
|
memset(cap, 0, sizeof(struct v4l2_capability));
|
|
|
|
strcpy(cap->driver, vino_driver_name);
|
|
strcpy(cap->card, vino_driver_description);
|
|
strcpy(cap->bus_info, vino_bus_name);
|
|
cap->version = VINO_VERSION_CODE;
|
|
cap->capabilities =
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_STREAMING;
|
|
// V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE
|
|
}
|
|
|
|
static int vino_v4l2_enuminput(struct vino_channel_settings *vcs,
|
|
struct v4l2_input *i)
|
|
{
|
|
__u32 index = i->index;
|
|
int input;
|
|
dprintk("requested index = %d\n", index);
|
|
|
|
input = vino_enum_input(vcs, index);
|
|
if (input == VINO_INPUT_NONE)
|
|
return -EINVAL;
|
|
|
|
memset(i, 0, sizeof(struct v4l2_input));
|
|
|
|
i->index = index;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
i->std = vino_inputs[input].std;
|
|
strcpy(i->name, vino_inputs[input].name);
|
|
|
|
if ((input == VINO_INPUT_COMPOSITE)
|
|
|| (input == VINO_INPUT_SVIDEO)) {
|
|
struct saa7191_status status;
|
|
i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status);
|
|
i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL;
|
|
i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_g_input(struct vino_channel_settings *vcs,
|
|
unsigned int *i)
|
|
{
|
|
__u32 index;
|
|
int input;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
input = vcs->input;
|
|
index = vino_find_input_index(vcs);
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
dprintk("input = %d\n", input);
|
|
|
|
if (input == VINO_INPUT_NONE) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
*i = index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_s_input(struct vino_channel_settings *vcs,
|
|
unsigned int *i)
|
|
{
|
|
int input;
|
|
dprintk("requested input = %d\n", *i);
|
|
|
|
input = vino_enum_input(vcs, *i);
|
|
if (input == VINO_INPUT_NONE)
|
|
return -EINVAL;
|
|
|
|
return vino_set_input(vcs, input);
|
|
}
|
|
|
|
static int vino_v4l2_enumstd(struct vino_channel_settings *vcs,
|
|
struct v4l2_standard *s)
|
|
{
|
|
int index = s->index;
|
|
int data_norm;
|
|
|
|
data_norm = vino_enum_data_norm(vcs, index);
|
|
dprintk("standard index = %d\n", index);
|
|
|
|
if (data_norm == VINO_DATA_NORM_NONE)
|
|
return -EINVAL;
|
|
|
|
dprintk("standard name = %s\n",
|
|
vino_data_norms[data_norm].description);
|
|
|
|
memset(s, 0, sizeof(struct v4l2_standard));
|
|
s->index = index;
|
|
|
|
s->id = vino_data_norms[data_norm].std;
|
|
s->frameperiod.numerator = 1;
|
|
s->frameperiod.denominator =
|
|
vino_data_norms[data_norm].fps_max;
|
|
s->framelines =
|
|
vino_data_norms[data_norm].framelines;
|
|
strcpy(s->name,
|
|
vino_data_norms[data_norm].description);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_querystd(struct vino_channel_settings *vcs,
|
|
v4l2_std_id *std)
|
|
{
|
|
unsigned long flags;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1:
|
|
*std = vino_inputs[vcs->input].std;
|
|
break;
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO: {
|
|
struct saa7191_status status;
|
|
|
|
i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status);
|
|
|
|
if (status.signal) {
|
|
if (status.signal_60hz) {
|
|
*std = V4L2_STD_NTSC;
|
|
} else {
|
|
*std = V4L2_STD_PAL | V4L2_STD_SECAM;
|
|
}
|
|
} else {
|
|
*std = vino_inputs[vcs->input].std;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
err = -EINVAL;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int vino_v4l2_g_std(struct vino_channel_settings *vcs,
|
|
v4l2_std_id *std)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
*std = vino_data_norms[vcs->data_norm].std;
|
|
dprintk("current standard = %d\n", vcs->data_norm);
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_s_std(struct vino_channel_settings *vcs,
|
|
v4l2_std_id *std)
|
|
{
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if (!vino_is_input_owner(vcs)) {
|
|
ret = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
/* check if the standard is valid for the current input */
|
|
if ((*std) & vino_inputs[vcs->input].std) {
|
|
dprintk("standard accepted\n");
|
|
|
|
/* change the video norm for SAA7191
|
|
* and accept NTSC for D1 (do nothing) */
|
|
|
|
if (vcs->input == VINO_INPUT_D1)
|
|
goto out;
|
|
|
|
if (((*std) & V4L2_STD_PAL)
|
|
&& ((*std) & V4L2_STD_NTSC)
|
|
&& ((*std) & V4L2_STD_SECAM)) {
|
|
ret = vino_set_data_norm(vcs, VINO_DATA_NORM_AUTO_EXT,
|
|
&flags);
|
|
} else if ((*std) & V4L2_STD_PAL) {
|
|
ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL,
|
|
&flags);
|
|
} else if ((*std) & V4L2_STD_NTSC) {
|
|
ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC,
|
|
&flags);
|
|
} else if ((*std) & V4L2_STD_SECAM) {
|
|
ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM,
|
|
&flags);
|
|
} else {
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
if (ret) {
|
|
ret = -EINVAL;
|
|
}
|
|
} else {
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs,
|
|
struct v4l2_fmtdesc *fd)
|
|
{
|
|
enum v4l2_buf_type type = fd->type;
|
|
int index = fd->index;
|
|
dprintk("format index = %d\n", index);
|
|
|
|
switch (fd->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if ((fd->index < 0) ||
|
|
(fd->index >= VINO_DATA_FMT_COUNT))
|
|
return -EINVAL;
|
|
dprintk("format name = %s\n",
|
|
vino_data_formats[index].description);
|
|
|
|
memset(fd, 0, sizeof(struct v4l2_fmtdesc));
|
|
fd->index = index;
|
|
fd->type = type;
|
|
fd->pixelformat = vino_data_formats[index].pixelformat;
|
|
strcpy(fd->description, vino_data_formats[index].description);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct vino_channel_settings tempvcs;
|
|
unsigned long flags;
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct v4l2_pix_format *pf = &f->fmt.pix;
|
|
|
|
dprintk("requested: w = %d, h = %d\n",
|
|
pf->width, pf->height);
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings));
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
tempvcs.data_format = vino_find_data_format(pf->pixelformat);
|
|
if (tempvcs.data_format == VINO_DATA_FMT_NONE) {
|
|
tempvcs.data_format = VINO_DATA_FMT_GREY;
|
|
pf->pixelformat =
|
|
vino_data_formats[tempvcs.data_format].
|
|
pixelformat;
|
|
}
|
|
|
|
/* data format must be set before clipping/scaling */
|
|
vino_set_scaling(&tempvcs, pf->width, pf->height);
|
|
|
|
dprintk("data format = %s\n",
|
|
vino_data_formats[tempvcs.data_format].description);
|
|
|
|
pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) /
|
|
tempvcs.decimation;
|
|
pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) /
|
|
tempvcs.decimation;
|
|
|
|
pf->field = V4L2_FIELD_INTERLACED;
|
|
pf->bytesperline = tempvcs.line_size;
|
|
pf->sizeimage = tempvcs.line_size *
|
|
(tempvcs.clipping.bottom - tempvcs.clipping.top) /
|
|
tempvcs.decimation;
|
|
pf->colorspace =
|
|
vino_data_formats[tempvcs.data_format].colorspace;
|
|
|
|
pf->priv = 0;
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs,
|
|
struct v4l2_format *f)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct v4l2_pix_format *pf = &f->fmt.pix;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
pf->width = (vcs->clipping.right - vcs->clipping.left) /
|
|
vcs->decimation;
|
|
pf->height = (vcs->clipping.bottom - vcs->clipping.top) /
|
|
vcs->decimation;
|
|
pf->pixelformat =
|
|
vino_data_formats[vcs->data_format].pixelformat;
|
|
|
|
pf->field = V4L2_FIELD_INTERLACED;
|
|
pf->bytesperline = vcs->line_size;
|
|
pf->sizeimage = vcs->line_size *
|
|
(vcs->clipping.bottom - vcs->clipping.top) /
|
|
vcs->decimation;
|
|
pf->colorspace =
|
|
vino_data_formats[vcs->data_format].colorspace;
|
|
|
|
pf->priv = 0;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs,
|
|
struct v4l2_format *f)
|
|
{
|
|
int data_format;
|
|
unsigned long flags;
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct v4l2_pix_format *pf = &f->fmt.pix;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
data_format = vino_find_data_format(pf->pixelformat);
|
|
|
|
if (data_format == VINO_DATA_FMT_NONE) {
|
|
vcs->data_format = VINO_DATA_FMT_GREY;
|
|
pf->pixelformat =
|
|
vino_data_formats[vcs->data_format].
|
|
pixelformat;
|
|
} else {
|
|
vcs->data_format = data_format;
|
|
}
|
|
|
|
/* data format must be set before clipping/scaling */
|
|
vino_set_scaling(vcs, pf->width, pf->height);
|
|
|
|
dprintk("data format = %s\n",
|
|
vino_data_formats[vcs->data_format].description);
|
|
|
|
pf->width = vcs->clipping.right - vcs->clipping.left;
|
|
pf->height = vcs->clipping.bottom - vcs->clipping.top;
|
|
|
|
pf->field = V4L2_FIELD_INTERLACED;
|
|
pf->bytesperline = vcs->line_size;
|
|
pf->sizeimage = vcs->line_size *
|
|
(vcs->clipping.bottom - vcs->clipping.top) /
|
|
vcs->decimation;
|
|
pf->colorspace =
|
|
vino_data_formats[vcs->data_format].colorspace;
|
|
|
|
pf->priv = 0;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_cropcap(struct vino_channel_settings *vcs,
|
|
struct v4l2_cropcap *ccap)
|
|
{
|
|
const struct vino_data_norm *norm;
|
|
unsigned long flags;
|
|
|
|
switch (ccap->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
norm = &vino_data_norms[vcs->data_norm];
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
ccap->bounds.left = 0;
|
|
ccap->bounds.top = 0;
|
|
ccap->bounds.width = norm->width;
|
|
ccap->bounds.height = norm->height;
|
|
memcpy(&ccap->defrect, &ccap->bounds,
|
|
sizeof(struct v4l2_rect));
|
|
|
|
ccap->pixelaspect.numerator = 1;
|
|
ccap->pixelaspect.denominator = 1;
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_g_crop(struct vino_channel_settings *vcs,
|
|
struct v4l2_crop *c)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (c->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
c->c.left = vcs->clipping.left;
|
|
c->c.top = vcs->clipping.top;
|
|
c->c.width = vcs->clipping.right - vcs->clipping.left;
|
|
c->c.height = vcs->clipping.bottom - vcs->clipping.top;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_s_crop(struct vino_channel_settings *vcs,
|
|
struct v4l2_crop *c)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (c->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
vino_set_clipping(vcs, c->c.left, c->c.top,
|
|
c->c.width, c->c.height);
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
break;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_g_parm(struct vino_channel_settings *vcs,
|
|
struct v4l2_streamparm *sp)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (sp->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct v4l2_captureparm *cp = &sp->parm.capture;
|
|
memset(cp, 0, sizeof(struct v4l2_captureparm));
|
|
|
|
cp->capability = V4L2_CAP_TIMEPERFRAME;
|
|
cp->timeperframe.numerator = 1;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
cp->timeperframe.denominator = vcs->fps;
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
// TODO: cp->readbuffers = xxx;
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_s_parm(struct vino_channel_settings *vcs,
|
|
struct v4l2_streamparm *sp)
|
|
{
|
|
unsigned long flags;
|
|
|
|
switch (sp->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct v4l2_captureparm *cp = &sp->parm.capture;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if ((cp->timeperframe.numerator == 0) ||
|
|
(cp->timeperframe.denominator == 0)) {
|
|
/* reset framerate */
|
|
vino_set_default_framerate(vcs);
|
|
} else {
|
|
vino_set_framerate(vcs, cp->timeperframe.denominator /
|
|
cp->timeperframe.numerator);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
// TODO: set buffers according to cp->readbuffers
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs,
|
|
struct v4l2_requestbuffers *rb)
|
|
{
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
switch (rb->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
// TODO: check queue type
|
|
if (rb->memory != V4L2_MEMORY_MMAP) {
|
|
dprintk("type not mmap\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dprintk("count = %d\n", rb->count);
|
|
if (rb->count > 0) {
|
|
if (vino_is_capturing(vcs)) {
|
|
dprintk("busy, capturing\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) {
|
|
dprintk("busy, buffers still mapped\n");
|
|
return -EBUSY;
|
|
} else {
|
|
vcs->streaming = 0;
|
|
vino_queue_free(&vcs->fb_queue);
|
|
vino_queue_init(&vcs->fb_queue, &rb->count);
|
|
}
|
|
} else {
|
|
vcs->streaming = 0;
|
|
vino_capture_stop(vcs);
|
|
vino_queue_free(&vcs->fb_queue);
|
|
}
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs,
|
|
struct vino_framebuffer *fb,
|
|
struct v4l2_buffer *b)
|
|
{
|
|
if (vino_queue_outgoing_contains(&vcs->fb_queue,
|
|
fb->id)) {
|
|
b->flags &= ~V4L2_BUF_FLAG_QUEUED;
|
|
b->flags |= V4L2_BUF_FLAG_DONE;
|
|
} else if (vino_queue_incoming_contains(&vcs->fb_queue,
|
|
fb->id)) {
|
|
b->flags &= ~V4L2_BUF_FLAG_DONE;
|
|
b->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
} else {
|
|
b->flags &= ~(V4L2_BUF_FLAG_DONE |
|
|
V4L2_BUF_FLAG_QUEUED);
|
|
}
|
|
|
|
b->flags &= ~(V4L2_BUF_FLAG_TIMECODE);
|
|
|
|
if (fb->map_count > 0)
|
|
b->flags |= V4L2_BUF_FLAG_MAPPED;
|
|
|
|
b->index = fb->id;
|
|
b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ?
|
|
V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR;
|
|
b->m.offset = fb->offset;
|
|
b->bytesused = fb->data_size;
|
|
b->length = fb->size;
|
|
b->field = V4L2_FIELD_INTERLACED;
|
|
b->sequence = fb->frame_counter;
|
|
memcpy(&b->timestamp, &fb->timestamp,
|
|
sizeof(struct timeval));
|
|
// b->input ?
|
|
|
|
dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n",
|
|
fb->id, fb->size, fb->data_size, fb->offset);
|
|
}
|
|
|
|
static int vino_v4l2_querybuf(struct vino_channel_settings *vcs,
|
|
struct v4l2_buffer *b)
|
|
{
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
switch (b->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct vino_framebuffer *fb;
|
|
|
|
// TODO: check queue type
|
|
if (b->index >= vino_queue_get_length(&vcs->fb_queue)) {
|
|
dprintk("invalid index = %d\n",
|
|
b->index);
|
|
return -EINVAL;
|
|
}
|
|
|
|
fb = vino_queue_get_buffer(&vcs->fb_queue,
|
|
b->index);
|
|
if (fb == NULL) {
|
|
dprintk("vino_queue_get_buffer() failed");
|
|
return -EINVAL;
|
|
}
|
|
|
|
vino_v4l2_get_buffer_status(vcs, fb, b);
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_qbuf(struct vino_channel_settings *vcs,
|
|
struct v4l2_buffer *b)
|
|
{
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
switch (b->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct vino_framebuffer *fb;
|
|
int ret;
|
|
|
|
// TODO: check queue type
|
|
if (b->memory != V4L2_MEMORY_MMAP) {
|
|
dprintk("type not mmap\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
fb = vino_capture_enqueue(vcs, b->index);
|
|
if (fb == NULL)
|
|
return -EINVAL;
|
|
|
|
vino_v4l2_get_buffer_status(vcs, fb, b);
|
|
|
|
if (vcs->streaming) {
|
|
ret = vino_capture_next(vcs, 1);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs,
|
|
struct v4l2_buffer *b,
|
|
unsigned int nonblocking)
|
|
{
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
switch (b->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
|
|
struct vino_framebuffer *fb;
|
|
unsigned int incoming, outgoing;
|
|
int err;
|
|
|
|
// TODO: check queue type
|
|
|
|
err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
|
|
if (err) {
|
|
dprintk("vino_queue_get_incoming() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing);
|
|
if (err) {
|
|
dprintk("vino_queue_get_outgoing() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing);
|
|
|
|
if (outgoing == 0) {
|
|
if (incoming == 0) {
|
|
dprintk("no incoming or outgoing buffers\n");
|
|
return -EINVAL;
|
|
}
|
|
if (nonblocking) {
|
|
dprintk("non-blocking I/O was selected and "
|
|
"there are no buffers to dequeue\n");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
err = vino_wait_for_frame(vcs);
|
|
if (err) {
|
|
err = vino_wait_for_frame(vcs);
|
|
if (err) {
|
|
/* interrupted or
|
|
* no frames captured because
|
|
* of frame skipping */
|
|
// vino_capture_failed(vcs);
|
|
return -EIO;
|
|
}
|
|
}
|
|
}
|
|
|
|
fb = vino_queue_remove(&vcs->fb_queue, &b->index);
|
|
if (fb == NULL) {
|
|
dprintk("vino_queue_remove() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = vino_check_buffer(vcs, fb);
|
|
|
|
vino_v4l2_get_buffer_status(vcs, fb, b);
|
|
|
|
if (err)
|
|
return -EIO;
|
|
|
|
break;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_streamon(struct vino_channel_settings *vcs)
|
|
{
|
|
unsigned int incoming;
|
|
int ret;
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
if (vcs->streaming)
|
|
return 0;
|
|
|
|
// TODO: check queue type
|
|
|
|
if (vino_queue_get_length(&vcs->fb_queue) < 1) {
|
|
dprintk("no buffers allocated\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
|
|
if (ret) {
|
|
dprintk("vino_queue_get_incoming() failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
vcs->streaming = 1;
|
|
|
|
if (incoming > 0) {
|
|
ret = vino_capture_next(vcs, 1);
|
|
if (ret) {
|
|
vcs->streaming = 0;
|
|
|
|
dprintk("couldn't start capture\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_streamoff(struct vino_channel_settings *vcs)
|
|
{
|
|
if (vcs->reading)
|
|
return -EBUSY;
|
|
|
|
if (!vcs->streaming)
|
|
return 0;
|
|
|
|
vcs->streaming = 0;
|
|
vino_capture_stop(vcs);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs,
|
|
struct v4l2_queryctrl *queryctrl)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1:
|
|
for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_indycam_v4l2_controls[i].id ==
|
|
queryctrl->id) {
|
|
memcpy(queryctrl,
|
|
&vino_indycam_v4l2_controls[i],
|
|
sizeof(struct v4l2_queryctrl));
|
|
queryctrl->reserved[0] = 0;
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
err = -EINVAL;
|
|
break;
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO:
|
|
for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_saa7191_v4l2_controls[i].id ==
|
|
queryctrl->id) {
|
|
memcpy(queryctrl,
|
|
&vino_saa7191_v4l2_controls[i],
|
|
sizeof(struct v4l2_queryctrl));
|
|
queryctrl->reserved[0] = 0;
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
err = -EINVAL;
|
|
break;
|
|
default:
|
|
err = -EINVAL;
|
|
}
|
|
|
|
found:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs,
|
|
struct v4l2_control *control)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1: {
|
|
struct indycam_control indycam_ctrl;
|
|
|
|
for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_indycam_v4l2_controls[i].id ==
|
|
control->id) {
|
|
goto found1;
|
|
}
|
|
}
|
|
|
|
err = -EINVAL;
|
|
goto out;
|
|
|
|
found1:
|
|
indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0];
|
|
|
|
err = i2c_camera_command(DECODER_INDYCAM_GET_CONTROL,
|
|
&indycam_ctrl);
|
|
if (err) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
control->value = indycam_ctrl.value;
|
|
break;
|
|
}
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO: {
|
|
struct saa7191_control saa7191_ctrl;
|
|
|
|
for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_saa7191_v4l2_controls[i].id ==
|
|
control->id) {
|
|
goto found2;
|
|
}
|
|
}
|
|
|
|
err = -EINVAL;
|
|
goto out;
|
|
|
|
found2:
|
|
saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0];
|
|
|
|
err = i2c_decoder_command(DECODER_SAA7191_GET_CONTROL,
|
|
&saa7191_ctrl);
|
|
if (err) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
control->value = saa7191_ctrl.value;
|
|
break;
|
|
}
|
|
default:
|
|
err = -EINVAL;
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs,
|
|
struct v4l2_control *control)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
int err = 0;
|
|
|
|
spin_lock_irqsave(&vino_drvdata->input_lock, flags);
|
|
|
|
if (!vino_is_input_owner(vcs)) {
|
|
err = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
switch (vcs->input) {
|
|
case VINO_INPUT_D1: {
|
|
struct indycam_control indycam_ctrl;
|
|
|
|
for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_indycam_v4l2_controls[i].id ==
|
|
control->id) {
|
|
if ((control->value >=
|
|
vino_indycam_v4l2_controls[i].minimum)
|
|
&& (control->value <=
|
|
vino_indycam_v4l2_controls[i].
|
|
maximum)) {
|
|
goto found1;
|
|
} else {
|
|
err = -ERANGE;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
err = -EINVAL;
|
|
goto out;
|
|
|
|
found1:
|
|
indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0];
|
|
indycam_ctrl.value = control->value;
|
|
|
|
err = i2c_camera_command(DECODER_INDYCAM_SET_CONTROL,
|
|
&indycam_ctrl);
|
|
if (err)
|
|
err = -EINVAL;
|
|
break;
|
|
}
|
|
case VINO_INPUT_COMPOSITE:
|
|
case VINO_INPUT_SVIDEO: {
|
|
struct saa7191_control saa7191_ctrl;
|
|
|
|
for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
|
|
if (vino_saa7191_v4l2_controls[i].id ==
|
|
control->id) {
|
|
if ((control->value >=
|
|
vino_saa7191_v4l2_controls[i].minimum)
|
|
&& (control->value <=
|
|
vino_saa7191_v4l2_controls[i].
|
|
maximum)) {
|
|
goto found2;
|
|
} else {
|
|
err = -ERANGE;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
err = -EINVAL;
|
|
goto out;
|
|
|
|
found2:
|
|
saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0];
|
|
saa7191_ctrl.value = control->value;
|
|
|
|
err = i2c_decoder_command(DECODER_SAA7191_SET_CONTROL,
|
|
&saa7191_ctrl);
|
|
if (err)
|
|
err = -EINVAL;
|
|
break;
|
|
}
|
|
default:
|
|
err = -EINVAL;
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
|
|
|
|
return err;
|
|
}
|
|
|
|
/* File operations */
|
|
|
|
static int vino_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
int ret = 0;
|
|
dprintk("open(): channel = %c\n",
|
|
(vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B');
|
|
|
|
mutex_lock(&vcs->mutex);
|
|
|
|
if (vcs->users) {
|
|
dprintk("open(): driver busy\n");
|
|
ret = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
ret = vino_acquire_input(vcs);
|
|
if (ret) {
|
|
dprintk("open(): vino_acquire_input() failed\n");
|
|
goto out;
|
|
}
|
|
|
|
vcs->users++;
|
|
|
|
out:
|
|
mutex_unlock(&vcs->mutex);
|
|
|
|
dprintk("open(): %s!\n", ret ? "failed" : "complete");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_close(struct inode *inode, struct file *file)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
dprintk("close():\n");
|
|
|
|
mutex_lock(&vcs->mutex);
|
|
|
|
vcs->users--;
|
|
|
|
if (!vcs->users) {
|
|
vino_release_input(vcs);
|
|
|
|
/* stop DMA and free buffers */
|
|
vino_capture_stop(vcs);
|
|
vino_queue_free(&vcs->fb_queue);
|
|
}
|
|
|
|
mutex_unlock(&vcs->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vino_vm_open(struct vm_area_struct *vma)
|
|
{
|
|
struct vino_framebuffer *fb = vma->vm_private_data;
|
|
|
|
fb->map_count++;
|
|
dprintk("vino_vm_open(): count = %d\n", fb->map_count);
|
|
}
|
|
|
|
static void vino_vm_close(struct vm_area_struct *vma)
|
|
{
|
|
struct vino_framebuffer *fb = vma->vm_private_data;
|
|
|
|
fb->map_count--;
|
|
dprintk("vino_vm_close(): count = %d\n", fb->map_count);
|
|
}
|
|
|
|
static struct vm_operations_struct vino_vm_ops = {
|
|
.open = vino_vm_open,
|
|
.close = vino_vm_close,
|
|
};
|
|
|
|
static int vino_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
|
|
unsigned long start = vma->vm_start;
|
|
unsigned long size = vma->vm_end - vma->vm_start;
|
|
unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
|
|
|
|
struct vino_framebuffer *fb = NULL;
|
|
unsigned int i, length;
|
|
int ret = 0;
|
|
|
|
dprintk("mmap():\n");
|
|
|
|
// TODO: reject mmap if already mapped
|
|
|
|
if (mutex_lock_interruptible(&vcs->mutex))
|
|
return -EINTR;
|
|
|
|
if (vcs->reading) {
|
|
ret = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
// TODO: check queue type
|
|
|
|
if (!(vma->vm_flags & VM_WRITE)) {
|
|
dprintk("mmap(): app bug: PROT_WRITE please\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
if (!(vma->vm_flags & VM_SHARED)) {
|
|
dprintk("mmap(): app bug: MAP_SHARED please\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/* find the correct buffer using offset */
|
|
length = vino_queue_get_length(&vcs->fb_queue);
|
|
if (length == 0) {
|
|
dprintk("mmap(): queue not initialized\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < length; i++) {
|
|
fb = vino_queue_get_buffer(&vcs->fb_queue, i);
|
|
if (fb == NULL) {
|
|
dprintk("mmap(): vino_queue_get_buffer() failed\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (fb->offset == offset)
|
|
goto found;
|
|
}
|
|
|
|
dprintk("mmap(): invalid offset = %lu\n", offset);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
|
|
found:
|
|
dprintk("mmap(): buffer = %d\n", i);
|
|
|
|
if (size > (fb->desc_table.page_count * PAGE_SIZE)) {
|
|
dprintk("mmap(): failed: size = %lu > %lu\n",
|
|
size, fb->desc_table.page_count * PAGE_SIZE);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < fb->desc_table.page_count; i++) {
|
|
unsigned long pfn =
|
|
virt_to_phys((void *)fb->desc_table.virtual[i]) >>
|
|
PAGE_SHIFT;
|
|
|
|
if (size < PAGE_SIZE)
|
|
break;
|
|
|
|
// protection was: PAGE_READONLY
|
|
if (remap_pfn_range(vma, start, pfn, PAGE_SIZE,
|
|
vma->vm_page_prot)) {
|
|
dprintk("mmap(): remap_pfn_range() failed\n");
|
|
ret = -EAGAIN;
|
|
goto out;
|
|
}
|
|
|
|
start += PAGE_SIZE;
|
|
size -= PAGE_SIZE;
|
|
}
|
|
|
|
fb->map_count = 1;
|
|
|
|
vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
|
|
vma->vm_flags &= ~VM_IO;
|
|
vma->vm_private_data = fb;
|
|
vma->vm_file = file;
|
|
vma->vm_ops = &vino_vm_ops;
|
|
|
|
out:
|
|
mutex_unlock(&vcs->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static unsigned int vino_poll(struct file *file, poll_table *pt)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
unsigned int outgoing;
|
|
unsigned int ret = 0;
|
|
|
|
// lock mutex (?)
|
|
// TODO: this has to be corrected for different read modes
|
|
|
|
dprintk("poll():\n");
|
|
|
|
if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
|
|
dprintk("poll(): vino_queue_get_outgoing() failed\n");
|
|
ret = POLLERR;
|
|
goto error;
|
|
}
|
|
if (outgoing > 0)
|
|
goto over;
|
|
|
|
poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt);
|
|
|
|
if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
|
|
dprintk("poll(): vino_queue_get_outgoing() failed\n");
|
|
ret = POLLERR;
|
|
goto error;
|
|
}
|
|
|
|
over:
|
|
dprintk("poll(): data %savailable\n",
|
|
(outgoing > 0) ? "" : "not ");
|
|
|
|
if (outgoing > 0)
|
|
ret = POLLIN | POLLRDNORM;
|
|
|
|
error:
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vino_do_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
|
|
#ifdef VINO_DEBUG
|
|
switch (_IOC_TYPE(cmd)) {
|
|
case 'v':
|
|
dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd);
|
|
break;
|
|
case 'V':
|
|
dprintk("ioctl(): V4L2 %s (0x%08x)\n",
|
|
v4l2_ioctl_names[_IOC_NR(cmd)], cmd);
|
|
break;
|
|
default:
|
|
dprintk("ioctl(): unsupported command 0x%08x\n", cmd);
|
|
}
|
|
#endif
|
|
|
|
switch (cmd) {
|
|
/* V4L2 interface */
|
|
case VIDIOC_QUERYCAP: {
|
|
vino_v4l2_querycap(arg);
|
|
break;
|
|
}
|
|
case VIDIOC_ENUMINPUT: {
|
|
return vino_v4l2_enuminput(vcs, arg);
|
|
}
|
|
case VIDIOC_G_INPUT: {
|
|
return vino_v4l2_g_input(vcs, arg);
|
|
}
|
|
case VIDIOC_S_INPUT: {
|
|
return vino_v4l2_s_input(vcs, arg);
|
|
}
|
|
case VIDIOC_ENUMSTD: {
|
|
return vino_v4l2_enumstd(vcs, arg);
|
|
}
|
|
case VIDIOC_QUERYSTD: {
|
|
return vino_v4l2_querystd(vcs, arg);
|
|
}
|
|
case VIDIOC_G_STD: {
|
|
return vino_v4l2_g_std(vcs, arg);
|
|
}
|
|
case VIDIOC_S_STD: {
|
|
return vino_v4l2_s_std(vcs, arg);
|
|
}
|
|
case VIDIOC_ENUM_FMT: {
|
|
return vino_v4l2_enum_fmt(vcs, arg);
|
|
}
|
|
case VIDIOC_TRY_FMT: {
|
|
return vino_v4l2_try_fmt(vcs, arg);
|
|
}
|
|
case VIDIOC_G_FMT: {
|
|
return vino_v4l2_g_fmt(vcs, arg);
|
|
}
|
|
case VIDIOC_S_FMT: {
|
|
return vino_v4l2_s_fmt(vcs, arg);
|
|
}
|
|
case VIDIOC_CROPCAP: {
|
|
return vino_v4l2_cropcap(vcs, arg);
|
|
}
|
|
case VIDIOC_G_CROP: {
|
|
return vino_v4l2_g_crop(vcs, arg);
|
|
}
|
|
case VIDIOC_S_CROP: {
|
|
return vino_v4l2_s_crop(vcs, arg);
|
|
}
|
|
case VIDIOC_G_PARM: {
|
|
return vino_v4l2_g_parm(vcs, arg);
|
|
}
|
|
case VIDIOC_S_PARM: {
|
|
return vino_v4l2_s_parm(vcs, arg);
|
|
}
|
|
case VIDIOC_REQBUFS: {
|
|
return vino_v4l2_reqbufs(vcs, arg);
|
|
}
|
|
case VIDIOC_QUERYBUF: {
|
|
return vino_v4l2_querybuf(vcs, arg);
|
|
}
|
|
case VIDIOC_QBUF: {
|
|
return vino_v4l2_qbuf(vcs, arg);
|
|
}
|
|
case VIDIOC_DQBUF: {
|
|
return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK);
|
|
}
|
|
case VIDIOC_STREAMON: {
|
|
return vino_v4l2_streamon(vcs);
|
|
}
|
|
case VIDIOC_STREAMOFF: {
|
|
return vino_v4l2_streamoff(vcs);
|
|
}
|
|
case VIDIOC_QUERYCTRL: {
|
|
return vino_v4l2_queryctrl(vcs, arg);
|
|
}
|
|
case VIDIOC_G_CTRL: {
|
|
return vino_v4l2_g_ctrl(vcs, arg);
|
|
}
|
|
case VIDIOC_S_CTRL: {
|
|
return vino_v4l2_s_ctrl(vcs, arg);
|
|
}
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct video_device *dev = video_devdata(file);
|
|
struct vino_channel_settings *vcs = video_get_drvdata(dev);
|
|
int ret;
|
|
|
|
if (mutex_lock_interruptible(&vcs->mutex))
|
|
return -EINTR;
|
|
|
|
ret = video_usercopy(inode, file, cmd, arg, vino_do_ioctl);
|
|
|
|
mutex_unlock(&vcs->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Initialization and cleanup */
|
|
|
|
/* __initdata */
|
|
static int vino_init_stage;
|
|
|
|
static const struct file_operations vino_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = vino_open,
|
|
.release = vino_close,
|
|
.ioctl = vino_ioctl,
|
|
.mmap = vino_mmap,
|
|
.poll = vino_poll,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static struct video_device v4l_device_template = {
|
|
.name = "NOT SET",
|
|
.fops = &vino_fops,
|
|
.minor = -1,
|
|
};
|
|
|
|
static void vino_module_cleanup(int stage)
|
|
{
|
|
switch(stage) {
|
|
case 10:
|
|
video_unregister_device(vino_drvdata->b.v4l_device);
|
|
vino_drvdata->b.v4l_device = NULL;
|
|
case 9:
|
|
video_unregister_device(vino_drvdata->a.v4l_device);
|
|
vino_drvdata->a.v4l_device = NULL;
|
|
case 8:
|
|
vino_i2c_del_bus();
|
|
case 7:
|
|
free_irq(SGI_VINO_IRQ, NULL);
|
|
case 6:
|
|
if (vino_drvdata->b.v4l_device) {
|
|
video_device_release(vino_drvdata->b.v4l_device);
|
|
vino_drvdata->b.v4l_device = NULL;
|
|
}
|
|
case 5:
|
|
if (vino_drvdata->a.v4l_device) {
|
|
video_device_release(vino_drvdata->a.v4l_device);
|
|
vino_drvdata->a.v4l_device = NULL;
|
|
}
|
|
case 4:
|
|
/* all entries in dma_cpu dummy table have the same address */
|
|
dma_unmap_single(NULL,
|
|
vino_drvdata->dummy_desc_table.dma_cpu[0],
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT
|
|
* sizeof(dma_addr_t),
|
|
(void *)vino_drvdata->
|
|
dummy_desc_table.dma_cpu,
|
|
vino_drvdata->dummy_desc_table.dma);
|
|
case 3:
|
|
free_page(vino_drvdata->dummy_page);
|
|
case 2:
|
|
kfree(vino_drvdata);
|
|
case 1:
|
|
iounmap(vino);
|
|
case 0:
|
|
break;
|
|
default:
|
|
dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n",
|
|
stage);
|
|
}
|
|
}
|
|
|
|
static int vino_probe(void)
|
|
{
|
|
unsigned long rev_id;
|
|
|
|
if (ip22_is_fullhouse()) {
|
|
printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) {
|
|
printk(KERN_ERR "VINO is not found (EISA BUS not present)\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino));
|
|
if (!vino) {
|
|
printk(KERN_ERR "VINO: ioremap() failed\n");
|
|
return -EIO;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
if (get_dbe(rev_id, &(vino->rev_id))) {
|
|
printk(KERN_ERR "Failed to read VINO revision register\n");
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) {
|
|
printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n",
|
|
rev_id);
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENODEV;
|
|
}
|
|
|
|
printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_init(void)
|
|
{
|
|
dma_addr_t dma_dummy_address;
|
|
int i;
|
|
|
|
vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL);
|
|
if (!vino_drvdata) {
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENOMEM;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
/* create a dummy dma descriptor */
|
|
vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
|
if (!vino_drvdata->dummy_page) {
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENOMEM;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
// TODO: use page_count in dummy_desc_table
|
|
|
|
vino_drvdata->dummy_desc_table.dma_cpu =
|
|
dma_alloc_coherent(NULL,
|
|
VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t),
|
|
&vino_drvdata->dummy_desc_table.dma,
|
|
GFP_KERNEL | GFP_DMA);
|
|
if (!vino_drvdata->dummy_desc_table.dma_cpu) {
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENOMEM;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
dma_dummy_address = dma_map_single(NULL,
|
|
(void *)vino_drvdata->dummy_page,
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) {
|
|
vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address;
|
|
}
|
|
|
|
/* initialize VINO */
|
|
|
|
vino->control = 0;
|
|
vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma;
|
|
vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma;
|
|
udelay(VINO_DESC_FETCH_DELAY);
|
|
|
|
vino->intr_status = 0;
|
|
|
|
vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
|
|
vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vino_init_channel_settings(struct vino_channel_settings *vcs,
|
|
unsigned int channel, const char *name)
|
|
{
|
|
vcs->channel = channel;
|
|
vcs->input = VINO_INPUT_NONE;
|
|
vcs->alpha = 0;
|
|
vcs->users = 0;
|
|
vcs->data_format = VINO_DATA_FMT_GREY;
|
|
vcs->data_norm = VINO_DATA_NORM_NTSC;
|
|
vcs->decimation = 1;
|
|
vino_set_default_clipping(vcs);
|
|
vino_set_default_framerate(vcs);
|
|
|
|
vcs->capturing = 0;
|
|
|
|
mutex_init(&vcs->mutex);
|
|
spin_lock_init(&vcs->capture_lock);
|
|
|
|
mutex_init(&vcs->fb_queue.queue_mutex);
|
|
spin_lock_init(&vcs->fb_queue.queue_lock);
|
|
init_waitqueue_head(&vcs->fb_queue.frame_wait_queue);
|
|
|
|
vcs->v4l_device = video_device_alloc();
|
|
if (!vcs->v4l_device) {
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -ENOMEM;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
memcpy(vcs->v4l_device, &v4l_device_template,
|
|
sizeof(struct video_device));
|
|
strcpy(vcs->v4l_device->name, name);
|
|
vcs->v4l_device->release = video_device_release;
|
|
|
|
video_set_drvdata(vcs->v4l_device, vcs);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init vino_module_init(void)
|
|
{
|
|
int ret;
|
|
|
|
printk(KERN_INFO "SGI VINO driver version %s\n",
|
|
VINO_MODULE_VERSION);
|
|
|
|
ret = vino_probe();
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = vino_init();
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* initialize data structures */
|
|
|
|
spin_lock_init(&vino_drvdata->vino_lock);
|
|
spin_lock_init(&vino_drvdata->input_lock);
|
|
|
|
ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A,
|
|
vino_v4l_device_name_a);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B,
|
|
vino_v4l_device_name_b);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* initialize hardware and register V4L devices */
|
|
|
|
ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0,
|
|
vino_driver_description, NULL);
|
|
if (ret) {
|
|
printk(KERN_ERR "VINO: requesting IRQ %02d failed\n",
|
|
SGI_VINO_IRQ);
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -EAGAIN;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
ret = vino_i2c_add_bus();
|
|
if (ret) {
|
|
printk(KERN_ERR "VINO I2C bus registration failed\n");
|
|
vino_module_cleanup(vino_init_stage);
|
|
return ret;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
ret = video_register_device(vino_drvdata->a.v4l_device,
|
|
VFL_TYPE_GRABBER, -1);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "VINO channel A Video4Linux-device "
|
|
"registration failed\n");
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -EINVAL;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
ret = video_register_device(vino_drvdata->b.v4l_device,
|
|
VFL_TYPE_GRABBER, -1);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "VINO channel B Video4Linux-device "
|
|
"registration failed\n");
|
|
vino_module_cleanup(vino_init_stage);
|
|
return -EINVAL;
|
|
}
|
|
vino_init_stage++;
|
|
|
|
#if defined(CONFIG_KMOD) && defined(MODULE)
|
|
request_module("saa7191");
|
|
request_module("indycam");
|
|
#endif
|
|
|
|
dprintk("init complete!\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit vino_module_exit(void)
|
|
{
|
|
dprintk("exiting, stage = %d ...\n", vino_init_stage);
|
|
vino_module_cleanup(vino_init_stage);
|
|
dprintk("cleanup complete, exit!\n");
|
|
}
|
|
|
|
module_init(vino_module_init);
|
|
module_exit(vino_module_exit);
|