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@@ -0,0 +1,1559 @@
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+/*
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+ tm6000-video.c - driver for TM5600/TM6000 USB video capture devices
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+
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+ Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation version 2
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program; if not, write to the Free Software
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+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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+ */
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+#include <linux/module.h>
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+#include <linux/delay.h>
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+#include <linux/errno.h>
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+#include <linux/fs.h>
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+#include <linux/kernel.h>
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+#include <linux/slab.h>
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+#include <linux/mm.h>
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+#include <linux/ioport.h>
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+#include <linux/init.h>
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+#include <linux/sched.h>
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+#include <linux/random.h>
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+#include <linux/version.h>
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+#include <linux/usb.h>
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+#include <linux/videodev2.h>
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+#ifdef CONFIG_VIDEO_V4L1_COMPAT
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+#include <linux/videodev.h>
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+#endif
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+#include <linux/interrupt.h>
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+#include <linux/kthread.h>
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+#include <linux/highmem.h>
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+#include <linux/freezer.h>
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+
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+#include "tm6000-regs.h"
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+#include "tm6000.h"
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+
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+#define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
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+
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+/* Declare static vars that will be used as parameters */
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+static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
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+static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
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+
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+unsigned long tm6000_devused;
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+
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+/* Debug level */
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+int tm6000_debug;
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+
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+/* supported controls */
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+static struct v4l2_queryctrl tm6000_qctrl[] = {
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+ {
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+ .id = V4L2_CID_BRIGHTNESS,
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+ .type = V4L2_CTRL_TYPE_INTEGER,
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+ .name = "Brightness",
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+ .minimum = 0,
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+ .maximum = 255,
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+ .step = 1,
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+ .default_value = 54,
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+ .flags = 0,
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+ }, {
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+ .id = V4L2_CID_CONTRAST,
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+ .type = V4L2_CTRL_TYPE_INTEGER,
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+ .name = "Contrast",
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+ .minimum = 0,
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+ .maximum = 255,
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+ .step = 0x1,
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+ .default_value = 119,
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+ .flags = 0,
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+ }, {
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+ .id = V4L2_CID_SATURATION,
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+ .type = V4L2_CTRL_TYPE_INTEGER,
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+ .name = "Saturation",
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+ .minimum = 0,
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+ .maximum = 255,
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+ .step = 0x1,
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+ .default_value = 112,
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+ .flags = 0,
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+ }, {
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+ .id = V4L2_CID_HUE,
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+ .type = V4L2_CTRL_TYPE_INTEGER,
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+ .name = "Hue",
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+ .minimum = -128,
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+ .maximum = 127,
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+ .step = 0x1,
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+ .default_value = 0, //4 ?
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+ .flags = 0,
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+ }
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+};
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+
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+static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)];
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+
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+static struct tm6000_fmt format[] = {
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+ {
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+ .name = "4:2:2, packed, YVY2",
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+ .fourcc = V4L2_PIX_FMT_YUYV,
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+ .depth = 16,
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+ },{
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+ .name = "4:2:2, packed, UYVY",
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+ .fourcc = V4L2_PIX_FMT_UYVY,
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+ .depth = 16,
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+ },{
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+ .name = "A/V + VBI mux packet",
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+ .fourcc = V4L2_PIX_FMT_TM6000,
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+ .depth = 16,
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+ }
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+};
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+
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+static LIST_HEAD(tm6000_corelist);
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+
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+/* ------------------------------------------------------------------
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+ DMA and thread functions
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+ ------------------------------------------------------------------*/
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+
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+#define norm_maxw(a) 720
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+#define norm_maxh(a) 480
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+
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+//#define norm_minw(a) norm_maxw(a)
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+#define norm_minw(a) norm_maxw(a)
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+#define norm_minh(a) norm_maxh(a)
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+
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+/*
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+ * video-buf generic routine to get the next available buffer
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+ */
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+static int inline get_next_buf (struct tm6000_dmaqueue *dma_q,
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+ struct tm6000_buffer **buf)
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+{
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+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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+
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+ if (list_empty(&dma_q->active)) {
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+ dprintk(dev, V4L2_DEBUG_QUEUE,"No active queue to serve\n");
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+ return 0;
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+ }
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+
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+ *buf = list_entry(dma_q->active.next,
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+ struct tm6000_buffer, vb.queue);
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+
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+ /* Nobody is waiting something to be done, just return */
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+ if (!waitqueue_active(&(*buf)->vb.done)) {
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+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
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+ return -1;
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+ }
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+
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+ return 1;
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+}
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+
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+/*
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+ * Announces that a buffer were filled and request the next
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+ */
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+static void inline buffer_filled (struct tm6000_core *dev,
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+ struct tm6000_buffer *buf)
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+{
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+ /* Advice that buffer was filled */
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+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] wakeup\n",buf,buf->vb.i);
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+ buf->vb.state = STATE_DONE;
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+ buf->vb.field_count++;
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+ do_gettimeofday(&buf->vb.ts);
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+
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+ list_del(&buf->vb.queue);
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+ wake_up(&buf->vb.done);
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+}
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+
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+/*
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+ * Macro to allow copying data into the proper memory type
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+ */
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+
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+#define bufcpy(buf,out_ptr,in_ptr,size) \
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+ { \
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+ if (__copy_to_user(out_ptr,in_ptr,size)!=0) \
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+ tm6000_err("copy_to_user failed.\n"); \
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+ }
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+
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+/*
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+ * Identify the tm5600/6000 buffer header type and properly handles
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+ */
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+static int copy_streams(u8 *data, u8 *out_p, unsigned long len,
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+ struct urb *urb, struct tm6000_buffer **buf)
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+{
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+ struct tm6000_dmaqueue *dma_q = urb->context;
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+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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+ u8 *ptr=data, *endp=data+len;
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+ u8 c;
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+ unsigned int cmd, cpysize, pktsize, size, field, block, line, pos=0;
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+ unsigned long header;
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+ int rc=0;
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+
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+ /* FIXME: this is the hardcoded window size
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+ */
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+ unsigned int linesize=720*2;
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+
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+//static int last_line=-2;
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+
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+ for (ptr=data; ptr<endp;) {
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+ if (!dev->isoc_ctl.cmd) {
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+ /* Seek for sync */
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+ for (ptr+=3;ptr<endp;ptr++) {
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+ if (*ptr==0x47) {
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+ ptr-=3;
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+ break;
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+ }
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+ }
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+ if (ptr>=endp)
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+ return rc;
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+
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+ /* Get message header */
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+ header=*(unsigned long *)ptr;
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+ ptr+=4;
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+ c=(header>>24) & 0xff;
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+
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+ /* split the header fields */
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+ size = (((header & 0x7e)<<1) -1) *4;
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+ block = (header>>7) & 0xf;
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+ field = (header>>11) & 0x1;
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+ line = (header>>12) & 0x1ff;
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+ cmd = (header>>21) & 0x7;
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+
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+ /* FIXME: Maximum possible line is 511.
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+ * This doesn't seem to be enough for PAL standards
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+ */
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+
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+ /* Validates header fields */
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+ if(size>TM6000_URB_MSG_LEN)
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+ size=TM6000_URB_MSG_LEN;
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+ if(block>=8)
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+ cmd = TM6000_URB_MSG_ERR;
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+
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+ /* FIXME: Mounts the image as field0+field1
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+ * It should, instead, check if the user selected
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+ * entrelaced or non-entrelaced mode
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+ */
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+ pos=((line<<1)+field)*linesize+
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+ block*TM6000_URB_MSG_LEN;
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+
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+
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+
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+ /* Don't allow to write out of the buffer */
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+ if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size)
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+ cmd = TM6000_URB_MSG_ERR;
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+
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+ /* Prints debug info */
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+ dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, "
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+ " line=%d, field=%d\n",
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+ size, block, line, field);
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+
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+ dev->isoc_ctl.cmd = cmd;
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+ dev->isoc_ctl.size = size;
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+ dev->isoc_ctl.pos = pos;
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+ dev->isoc_ctl.pktsize = pktsize = TM6000_URB_MSG_LEN;
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+ } else {
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+ cmd = dev->isoc_ctl.cmd;
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+ size= dev->isoc_ctl.size;
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+ pos = dev->isoc_ctl.pos;
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+ pktsize = dev->isoc_ctl.pktsize;
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+ }
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+ cpysize=(endp-ptr>size)?size:endp-ptr;
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+
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+ if (cpysize) {
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+ /* handles each different URB message */
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+ switch(cmd) {
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+ case TM6000_URB_MSG_VIDEO:
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+ /* Fills video buffer */
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+ bufcpy(*buf,&out_p[pos],ptr,cpysize);
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+ break;
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+ }
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+ }
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+ if (cpysize<size) {
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+ /* End of URB packet, but cmd processing is not
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+ * complete. Preserve the state for a next packet
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+ */
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+ dev->isoc_ctl.pos = pos+cpysize;
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+ dev->isoc_ctl.size= size-cpysize;
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+ dev->isoc_ctl.cmd = cmd;
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+ dev->isoc_ctl.pktsize = pktsize-cpysize;
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+ ptr+=cpysize;
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+ } else {
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+ dev->isoc_ctl.cmd = 0;
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+ ptr+=pktsize;
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+ }
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+ }
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+
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+ return rc;
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+}
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+/*
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+ * Identify the tm5600/6000 buffer header type and properly handles
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+ */
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+static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len,
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+ struct urb *urb, struct tm6000_buffer **buf)
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+{
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+ struct tm6000_dmaqueue *dma_q = urb->context;
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+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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+ unsigned int pos=dev->isoc_ctl.pos,cpysize;
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+ int rc=1;
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+
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+ while (len>0) {
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+ cpysize=min(len,(*buf)->vb.size-pos);
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+//printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
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+ bufcpy(*buf,&out_p[pos],ptr,cpysize);
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+ pos+=cpysize;
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+ ptr+=cpysize;
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+ len-=cpysize;
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+ if (pos >= (*buf)->vb.size) {
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+ pos=0;
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+ /* Announces that a new buffer were filled */
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+ buffer_filled (dev, *buf);
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+ dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n");
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+
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+ rc=get_next_buf (dma_q, buf);
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+ if (rc<=0) {
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+ *buf=NULL;
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+ printk(KERN_ERR "tm6000: buffer underrun\n");
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+ break;
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+ }
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+ }
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+ }
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+
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+ dev->isoc_ctl.pos=pos;
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+ return rc;
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+}
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+
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+/*
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+ * Controls the isoc copy of each urb packet
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+ */
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+static inline int tm6000_isoc_copy(struct urb *urb, struct tm6000_buffer **buf)
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+{
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+ struct tm6000_dmaqueue *dma_q = urb->context;
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+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
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+ void *outp=videobuf_to_vmalloc (&((*buf)->vb));
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+ int i, len=0, rc=1;
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+ int size=(*buf)->vb.size;
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+ char *p;
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+ unsigned long copied;
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+
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+ copied=0;
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+
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+
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+ for (i = 0; i < urb->number_of_packets; i++) {
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+ int status = urb->iso_frame_desc[i].status;
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+ char *errmsg = "Unknown";
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+
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+ switch(status) {
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+ case -ENOENT:
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+ errmsg = "unlinked synchronuously";
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+ break;
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+ case -ECONNRESET:
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+ errmsg = "unlinked asynchronuously";
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+ break;
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+ case -ENOSR:
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+ errmsg = "Buffer error (overrun)";
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+ break;
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+ case -EPIPE:
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+ errmsg = "Stalled (device not responding)";
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+ break;
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+ case -EOVERFLOW:
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+ errmsg = "Babble (bad cable?)";
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+ break;
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+ case -EPROTO:
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+ errmsg = "Bit-stuff error (bad cable?)";
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+ break;
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+ case -EILSEQ:
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+ errmsg = "CRC/Timeout (could be anything)";
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+ break;
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+ case -ETIME:
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+ errmsg = "Device does not respond";
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+ break;
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+ }
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+ dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n",
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+ status, errmsg);
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+
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+ if (status<0)
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+ continue;
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+
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+ len=urb->iso_frame_desc[i].actual_length;
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+
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+ if (len>=TM6000_URB_MSG_LEN) {
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+ p=urb->transfer_buffer + urb->iso_frame_desc[i].offset;
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+ if (!urb->iso_frame_desc[i].status) {
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+ if (((*buf)->fmt->fourcc)==V4L2_PIX_FMT_TM6000) {
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+ rc=copy_multiplexed(p,outp,len,urb,buf);
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+ if (rc<=0)
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+ return rc;
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+ } else {
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+ rc=copy_streams(p,outp,len,urb,buf);
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+ }
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+ }
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+ copied += len;
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+ if (copied>=size)
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+ break;
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+ }
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+ }
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+
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+ if (((*buf)->fmt->fourcc)!=V4L2_PIX_FMT_TM6000) {
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+ buffer_filled (dev, *buf);
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+ dprintk(dev, V4L2_DEBUG_QUEUE, "new buffer filled\n");
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+ }
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+
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+ return rc;
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+}
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+
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+/* ------------------------------------------------------------------
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+ URB control
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+ ------------------------------------------------------------------*/
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+
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|
|
+/*
|
|
|
+ * IRQ callback, called by URB callback
|
|
|
+ */
|
|
|
+static void tm6000_irq_callback(struct urb *urb)
|
|
|
+{
|
|
|
+ struct tm6000_buffer *buf;
|
|
|
+ struct tm6000_dmaqueue *dma_q = urb->context;
|
|
|
+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
|
|
|
+ int rc,i;
|
|
|
+ unsigned long flags;
|
|
|
+
|
|
|
+ spin_lock_irqsave(&dev->slock,flags);
|
|
|
+
|
|
|
+ rc=get_next_buf (dma_q, &buf);
|
|
|
+ if (rc<=0)
|
|
|
+ goto ret;
|
|
|
+
|
|
|
+ /* Copy data from URB */
|
|
|
+ rc=tm6000_isoc_copy(urb, &buf);
|
|
|
+
|
|
|
+ret:
|
|
|
+ /* Reset urb buffers */
|
|
|
+ for (i = 0; i < urb->number_of_packets; i++) {
|
|
|
+ urb->iso_frame_desc[i].status = 0;
|
|
|
+ urb->iso_frame_desc[i].actual_length = 0;
|
|
|
+ }
|
|
|
+ urb->status = 0;
|
|
|
+
|
|
|
+ if ((urb->status = usb_submit_urb(urb, GFP_ATOMIC))) {
|
|
|
+ tm6000_err("urb resubmit failed (error=%i)\n",
|
|
|
+ urb->status);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (rc>=0) {
|
|
|
+ if (!rc) {
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "No active queue to serve\n");
|
|
|
+ del_timer(&dma_q->timeout);
|
|
|
+ } else {
|
|
|
+ /* Data filled, reset watchdog */
|
|
|
+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ spin_unlock_irqrestore(&dev->slock,flags);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Stop and Deallocate URBs
|
|
|
+ */
|
|
|
+static void tm6000_uninit_isoc(struct tm6000_core *dev)
|
|
|
+{
|
|
|
+ struct urb *urb;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
|
+ urb=dev->isoc_ctl.urb[i];
|
|
|
+ if (urb) {
|
|
|
+ usb_kill_urb(urb);
|
|
|
+ usb_unlink_urb(urb);
|
|
|
+ if (dev->isoc_ctl.transfer_buffer[i]) {
|
|
|
+ usb_buffer_free(dev->udev,
|
|
|
+ urb->transfer_buffer_length,
|
|
|
+ dev->isoc_ctl.transfer_buffer[i],
|
|
|
+ urb->transfer_dma);
|
|
|
+ }
|
|
|
+ usb_free_urb(urb);
|
|
|
+ dev->isoc_ctl.urb[i] = NULL;
|
|
|
+ }
|
|
|
+ dev->isoc_ctl.transfer_buffer[i] = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ kfree (dev->isoc_ctl.urb);
|
|
|
+ kfree (dev->isoc_ctl.transfer_buffer);
|
|
|
+ dev->isoc_ctl.urb=NULL;
|
|
|
+ dev->isoc_ctl.transfer_buffer=NULL;
|
|
|
+
|
|
|
+ dev->isoc_ctl.num_bufs=0;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Stop video thread - FIXME: Can be easily removed
|
|
|
+ */
|
|
|
+static void tm6000_stop_thread(struct tm6000_dmaqueue *dma_q)
|
|
|
+{
|
|
|
+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
|
|
|
+
|
|
|
+ tm6000_uninit_isoc(dev);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/*
|
|
|
+ * Allocate URBs and start IRQ
|
|
|
+ */
|
|
|
+static int tm6000_prepare_isoc(struct tm6000_core *dev,
|
|
|
+ int max_packets, int num_bufs)
|
|
|
+{
|
|
|
+ struct tm6000_dmaqueue *dma_q = &dev->vidq;
|
|
|
+ int i;
|
|
|
+ int sb_size, pipe;
|
|
|
+ struct urb *urb;
|
|
|
+ int j, k;
|
|
|
+
|
|
|
+ /* De-allocates all pending stuff */
|
|
|
+ tm6000_uninit_isoc(dev);
|
|
|
+
|
|
|
+ dev->isoc_ctl.num_bufs=num_bufs;
|
|
|
+
|
|
|
+ dev->isoc_ctl.urb=kmalloc(sizeof(void *)*num_bufs,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!dev->isoc_ctl.urb) {
|
|
|
+ tm6000_err("cannot alloc memory for usb buffers\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->isoc_ctl.transfer_buffer=kmalloc(sizeof(void *)*num_bufs,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!dev->isoc_ctl.urb) {
|
|
|
+ tm6000_err("cannot allocate memory for usbtransfer\n");
|
|
|
+ kfree(dev->isoc_ctl.urb);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev->isoc_ctl.max_pkt_size=dev->max_isoc_in;
|
|
|
+
|
|
|
+ sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
|
|
|
+
|
|
|
+
|
|
|
+ /* allocate urbs and transfer buffers */
|
|
|
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
|
+ urb = usb_alloc_urb(max_packets, GFP_KERNEL);
|
|
|
+ if (!urb) {
|
|
|
+ tm6000_err("cannot alloc isoc_ctl.urb %i\n", i);
|
|
|
+ tm6000_uninit_isoc(dev);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ dev->isoc_ctl.urb[i] = urb;
|
|
|
+
|
|
|
+ dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev,
|
|
|
+ sb_size, GFP_KERNEL,
|
|
|
+ &dev->isoc_ctl.urb[i]->transfer_dma);
|
|
|
+ if (!dev->isoc_ctl.transfer_buffer[i]) {
|
|
|
+ tm6000_err ("unable to allocate %i bytes for transfer"
|
|
|
+ " buffer %i\n", sb_size, i);
|
|
|
+ tm6000_uninit_isoc(dev);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
|
|
|
+
|
|
|
+ pipe=usb_rcvisocpipe(dev->udev,
|
|
|
+ dev->isoc_in->desc.bEndpointAddress &
|
|
|
+ USB_ENDPOINT_NUMBER_MASK);
|
|
|
+ usb_fill_int_urb(urb, dev->udev, pipe,
|
|
|
+ dev->isoc_ctl.transfer_buffer[i],sb_size,
|
|
|
+ tm6000_irq_callback, dma_q,
|
|
|
+ dev->isoc_in->desc.bInterval);
|
|
|
+
|
|
|
+ urb->number_of_packets = max_packets;
|
|
|
+ urb->transfer_flags = URB_ISO_ASAP;
|
|
|
+
|
|
|
+ k = 0;
|
|
|
+ for (j = 0; j < max_packets; j++) {
|
|
|
+ urb->iso_frame_desc[j].offset = k;
|
|
|
+ urb->iso_frame_desc[j].length =
|
|
|
+ dev->isoc_ctl.max_pkt_size;
|
|
|
+ k += dev->isoc_ctl.max_pkt_size;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q,
|
|
|
+ struct tm6000_buffer *buf)
|
|
|
+{
|
|
|
+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
|
|
|
+ int i,rc;
|
|
|
+
|
|
|
+ dma_q->frame=0;
|
|
|
+ dma_q->ini_jiffies=jiffies;
|
|
|
+
|
|
|
+ init_waitqueue_head(&dma_q->wq);
|
|
|
+
|
|
|
+ /* submit urbs and enables IRQ */
|
|
|
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
|
|
|
+ rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_KERNEL);
|
|
|
+ if (rc) {
|
|
|
+ tm6000_err("submit of urb %i failed (error=%i)\n", i,
|
|
|
+ rc);
|
|
|
+ tm6000_uninit_isoc(dev);
|
|
|
+ return rc;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (rc<0)
|
|
|
+ return rc;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int restart_video_queue(struct tm6000_dmaqueue *dma_q)
|
|
|
+{
|
|
|
+ struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
|
|
|
+
|
|
|
+ struct tm6000_buffer *buf, *prev;
|
|
|
+ struct list_head *item;
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "%s dma_q=0x%08lx\n",
|
|
|
+ __FUNCTION__,(unsigned long)dma_q);
|
|
|
+
|
|
|
+ if (!list_empty(&dma_q->active)) {
|
|
|
+ buf = list_entry(dma_q->active.next, struct tm6000_buffer, vb.queue);
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE,
|
|
|
+ "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i);
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n");
|
|
|
+ tm6000_stop_thread(dma_q);
|
|
|
+ tm6000_start_thread(dma_q, buf);
|
|
|
+
|
|
|
+ /* cancel all outstanding capture / vbi requests */
|
|
|
+ list_for_each(item,&dma_q->active) {
|
|
|
+ buf = list_entry(item, struct tm6000_buffer, vb.queue);
|
|
|
+
|
|
|
+ list_del(&buf->vb.queue);
|
|
|
+ buf->vb.state = STATE_ERROR;
|
|
|
+ wake_up(&buf->vb.done);
|
|
|
+ }
|
|
|
+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ prev = NULL;
|
|
|
+ for (;;) {
|
|
|
+ if (list_empty(&dma_q->queued))
|
|
|
+ return 0;
|
|
|
+ buf = list_entry(dma_q->queued.next, struct tm6000_buffer, vb.queue);
|
|
|
+ if (NULL == prev) {
|
|
|
+ list_del(&buf->vb.queue);
|
|
|
+ list_add_tail(&buf->vb.queue,&dma_q->active);
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n");
|
|
|
+ tm6000_stop_thread(dma_q);
|
|
|
+ tm6000_start_thread(dma_q, buf);
|
|
|
+
|
|
|
+ buf->vb.state = STATE_ACTIVE;
|
|
|
+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -"
|
|
|
+ " first active\n", buf, buf->vb.i);
|
|
|
+
|
|
|
+ } else if (prev->vb.width == buf->vb.width &&
|
|
|
+ prev->vb.height == buf->vb.height &&
|
|
|
+ prev->fmt == buf->fmt) {
|
|
|
+ list_del(&buf->vb.queue);
|
|
|
+ list_add_tail(&buf->vb.queue,&dma_q->active);
|
|
|
+ buf->vb.state = STATE_ACTIVE;
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -"
|
|
|
+ " move to active\n",buf,buf->vb.i);
|
|
|
+ } else {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ prev = buf;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void tm6000_vid_timeout(unsigned long data)
|
|
|
+{
|
|
|
+ struct tm6000_core *dev = (struct tm6000_core*)data;
|
|
|
+ struct tm6000_dmaqueue *vidq = &dev->vidq;
|
|
|
+ struct tm6000_buffer *buf;
|
|
|
+ unsigned long flags;
|
|
|
+
|
|
|
+ spin_lock_irqsave(&dev->slock,flags);
|
|
|
+ while (!list_empty(&vidq->active)) {
|
|
|
+ buf = list_entry(vidq->active.next, struct tm6000_buffer,
|
|
|
+ vb.queue);
|
|
|
+ list_del(&buf->vb.queue);
|
|
|
+ buf->vb.state = STATE_ERROR;
|
|
|
+ wake_up(&buf->vb.done);
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "tm6000/0: [%p/%d] timeout\n",
|
|
|
+ buf, buf->vb.i);
|
|
|
+ }
|
|
|
+
|
|
|
+ restart_video_queue(vidq);
|
|
|
+ spin_unlock_irqrestore(&dev->slock,flags);
|
|
|
+}
|
|
|
+
|
|
|
+/* ------------------------------------------------------------------
|
|
|
+ Videobuf operations
|
|
|
+ ------------------------------------------------------------------*/
|
|
|
+static int
|
|
|
+buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = vq->priv_data;
|
|
|
+
|
|
|
+ *size = fh->fmt->depth * fh->width * fh->height >> 3;
|
|
|
+ if (0 == *count)
|
|
|
+ *count = 32;
|
|
|
+ while (*size * *count > vid_limit * 1024 * 1024)
|
|
|
+ (*count)--;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf)
|
|
|
+{
|
|
|
+ if (in_interrupt())
|
|
|
+ BUG();
|
|
|
+
|
|
|
+ videobuf_waiton(&buf->vb,0,0);
|
|
|
+ videobuf_vmalloc_free(&buf->vb);
|
|
|
+ buf->vb.state = STATE_NEEDS_INIT;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
|
|
|
+ enum v4l2_field field)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = vq->priv_data;
|
|
|
+ struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ int rc=0, urbsize, urb_init=0;
|
|
|
+
|
|
|
+ BUG_ON(NULL == fh->fmt);
|
|
|
+
|
|
|
+ if (fh->width < norm_minw(core) || fh->width > norm_maxw(core) ||
|
|
|
+ fh->height < norm_minh(core) || fh->height > norm_maxh(core)) {
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "Window size (%dx%d) is out of "
|
|
|
+ "supported range\n", fh->width, fh->height);
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "Valid range is from (%dx%d) to "
|
|
|
+ "(%dx%d)\n", norm_minw(core), norm_minh(core),
|
|
|
+ norm_maxw(core),norm_maxh(core));
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* FIXME: It assumes depth=2 */
|
|
|
+ /* The only currently supported format is 16 bits/pixel */
|
|
|
+ buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3;
|
|
|
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ if (buf->fmt != fh->fmt ||
|
|
|
+ buf->vb.width != fh->width ||
|
|
|
+ buf->vb.height != fh->height ||
|
|
|
+ buf->vb.field != field) {
|
|
|
+ buf->fmt = fh->fmt;
|
|
|
+ buf->vb.width = fh->width;
|
|
|
+ buf->vb.height = fh->height;
|
|
|
+ buf->vb.field = field;
|
|
|
+ buf->vb.state = STATE_NEEDS_INIT;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (STATE_NEEDS_INIT == buf->vb.state) {
|
|
|
+ if (0 != (rc = videobuf_iolock(vq,&buf->vb,NULL)))
|
|
|
+ goto fail;
|
|
|
+ urb_init=1;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ if (!dev->isoc_ctl.num_bufs)
|
|
|
+ urb_init=1;
|
|
|
+
|
|
|
+ if (urb_init) {
|
|
|
+ /* Should allocate/request at least h
|
|
|
+ res x v res x 2 bytes/pixel */
|
|
|
+ urbsize=(buf->vb.size+dev->max_isoc_in-1)/dev->max_isoc_in;
|
|
|
+
|
|
|
+ /* Hack to allocate memory for Video + Audio */
|
|
|
+ /* FIXME: should also consider header ovehead of
|
|
|
+ 4 bytes/180 bytes */
|
|
|
+ urbsize+=((48000*4+24)/25+dev->max_isoc_in-1)/dev->max_isoc_in;
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %d packets to handle "
|
|
|
+ "%lu size\n", urbsize,buf->vb.size);
|
|
|
+ rc = tm6000_prepare_isoc(dev, urbsize, 2);
|
|
|
+
|
|
|
+ if (rc<0)
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ buf->vb.state = STATE_PREPARED;
|
|
|
+ return 0;
|
|
|
+
|
|
|
+fail:
|
|
|
+ free_buffer(vq,buf);
|
|
|
+ return rc;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
|
+{
|
|
|
+ struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
|
+ struct tm6000_fh *fh = vq->priv_data;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ struct tm6000_dmaqueue *vidq = &dev->vidq;
|
|
|
+ struct tm6000_buffer *prev;
|
|
|
+
|
|
|
+ if (!list_empty(&vidq->queued)) {
|
|
|
+ list_add_tail(&buf->vb.queue,&vidq->queued);
|
|
|
+ buf->vb.state = STATE_QUEUED;
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - "
|
|
|
+ "append to queued\n", buf, buf->vb.i);
|
|
|
+ } else if (list_empty(&vidq->active)) {
|
|
|
+ list_add_tail(&buf->vb.queue,&vidq->active);
|
|
|
+ buf->vb.state = STATE_ACTIVE;
|
|
|
+ mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - "
|
|
|
+ "first active\n", buf, buf->vb.i);
|
|
|
+ tm6000_start_thread(vidq, buf);
|
|
|
+ } else {
|
|
|
+ prev = list_entry(vidq->active.prev, struct tm6000_buffer, vb.queue);
|
|
|
+ if (prev->vb.width == buf->vb.width &&
|
|
|
+ prev->vb.height == buf->vb.height &&
|
|
|
+ prev->fmt == buf->fmt) {
|
|
|
+ list_add_tail(&buf->vb.queue,&vidq->active);
|
|
|
+ buf->vb.state = STATE_ACTIVE;
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -"
|
|
|
+ " append to active\n", buf, buf->vb.i);
|
|
|
+ } else {
|
|
|
+ list_add_tail(&buf->vb.queue,&vidq->queued);
|
|
|
+ buf->vb.state = STATE_QUEUED;
|
|
|
+ dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -"
|
|
|
+ " first queued\n", buf, buf->vb.i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
|
+{
|
|
|
+ struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb);
|
|
|
+ struct tm6000_fh *fh = vq->priv_data;
|
|
|
+ struct tm6000_core *dev = (struct tm6000_core*)fh->dev;
|
|
|
+ struct tm6000_dmaqueue *vidq = &dev->vidq;
|
|
|
+
|
|
|
+ tm6000_stop_thread(vidq);
|
|
|
+
|
|
|
+ free_buffer(vq,buf);
|
|
|
+}
|
|
|
+
|
|
|
+static struct videobuf_queue_ops tm6000_video_qops = {
|
|
|
+ .buf_setup = buffer_setup,
|
|
|
+ .buf_prepare = buffer_prepare,
|
|
|
+ .buf_queue = buffer_queue,
|
|
|
+ .buf_release = buffer_release,
|
|
|
+};
|
|
|
+
|
|
|
+/* ------------------------------------------------------------------
|
|
|
+ IOCTL handling
|
|
|
+ ------------------------------------------------------------------*/
|
|
|
+
|
|
|
+static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh)
|
|
|
+{
|
|
|
+ /* is it free? */
|
|
|
+ mutex_lock(&dev->lock);
|
|
|
+ if (dev->resources) {
|
|
|
+ /* no, someone else uses it */
|
|
|
+ mutex_unlock(&dev->lock);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ /* it's free, grab it */
|
|
|
+ dev->resources =1;
|
|
|
+ dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n");
|
|
|
+ mutex_unlock(&dev->lock);
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+static int res_locked(struct tm6000_core *dev)
|
|
|
+{
|
|
|
+ return (dev->resources);
|
|
|
+}
|
|
|
+
|
|
|
+static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh)
|
|
|
+{
|
|
|
+ mutex_lock(&dev->lock);
|
|
|
+ dev->resources = 0;
|
|
|
+ dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n");
|
|
|
+ mutex_unlock(&dev->lock);
|
|
|
+}
|
|
|
+
|
|
|
+/* ------------------------------------------------------------------
|
|
|
+ IOCTL vidioc handling
|
|
|
+ ------------------------------------------------------------------*/
|
|
|
+static int vidioc_querycap (struct file *file, void *priv,
|
|
|
+ struct v4l2_capability *cap)
|
|
|
+{
|
|
|
+ // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
|
|
|
+
|
|
|
+ strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
|
|
|
+ strlcpy(cap->card,"Trident TVMaster TM5600/6000", sizeof(cap->card));
|
|
|
+ // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
|
|
|
+ cap->version = TM6000_VERSION;
|
|
|
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
|
|
|
+ V4L2_CAP_STREAMING |
|
|
|
+ V4L2_CAP_TUNER |
|
|
|
+ V4L2_CAP_READWRITE;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_enum_fmt_cap (struct file *file, void *priv,
|
|
|
+ struct v4l2_fmtdesc *f)
|
|
|
+{
|
|
|
+ if (unlikely(f->index >= ARRAY_SIZE(format)))
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ strlcpy(f->description,format[f->index].name,sizeof(f->description));
|
|
|
+ f->pixelformat = format[f->index].fourcc;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_g_fmt_cap (struct file *file, void *priv,
|
|
|
+ struct v4l2_format *f)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ f->fmt.pix.width = fh->width;
|
|
|
+ f->fmt.pix.height = fh->height;
|
|
|
+ f->fmt.pix.field = fh->vb_vidq.field;
|
|
|
+ f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
|
+ f->fmt.pix.bytesperline =
|
|
|
+ (f->fmt.pix.width * fh->fmt->depth) >> 3;
|
|
|
+ f->fmt.pix.sizeimage =
|
|
|
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
+
|
|
|
+ return (0);
|
|
|
+}
|
|
|
+
|
|
|
+static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc)
|
|
|
+{
|
|
|
+ unsigned int i;
|
|
|
+
|
|
|
+ for (i = 0; i < ARRAY_SIZE(format); i++)
|
|
|
+ if (format[i].fourcc == fourcc)
|
|
|
+ return format+i;
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_try_fmt_cap (struct file *file, void *priv,
|
|
|
+ struct v4l2_format *f)
|
|
|
+{
|
|
|
+ struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
|
|
|
+ struct tm6000_fmt *fmt;
|
|
|
+ enum v4l2_field field;
|
|
|
+
|
|
|
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
|
+ if (NULL == fmt) {
|
|
|
+ dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)"
|
|
|
+ " invalid.\n", f->fmt.pix.pixelformat);
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ field = f->fmt.pix.field;
|
|
|
+
|
|
|
+ if (field == V4L2_FIELD_ANY) {
|
|
|
+// field=V4L2_FIELD_INTERLACED;
|
|
|
+ field=V4L2_FIELD_SEQ_TB;
|
|
|
+ } else if (V4L2_FIELD_INTERLACED != field) {
|
|
|
+ dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n");
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (f->fmt.pix.width < norm_minw(core))
|
|
|
+ f->fmt.pix.width = norm_minw(core);
|
|
|
+
|
|
|
+ if (f->fmt.pix.width > norm_maxw(core))
|
|
|
+ f->fmt.pix.width = norm_maxw(core);
|
|
|
+
|
|
|
+ if (f->fmt.pix.height < norm_minh(core))
|
|
|
+ f->fmt.pix.height = norm_minh(core);
|
|
|
+
|
|
|
+ if (f->fmt.pix.height > norm_maxh(core))
|
|
|
+ f->fmt.pix.height = norm_maxh(core);
|
|
|
+
|
|
|
+ f->fmt.pix.width &= ~0x01;
|
|
|
+
|
|
|
+ f->fmt.pix.field = field;
|
|
|
+
|
|
|
+ f->fmt.pix.bytesperline =
|
|
|
+ (f->fmt.pix.width * fmt->depth) >> 3;
|
|
|
+ f->fmt.pix.sizeimage =
|
|
|
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/*FIXME: This seems to be generic enough to be at videodev2 */
|
|
|
+static int vidioc_s_fmt_cap (struct file *file, void *priv,
|
|
|
+ struct v4l2_format *f)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ int ret = vidioc_try_fmt_cap(file,fh,f);
|
|
|
+ if (ret < 0)
|
|
|
+ return (ret);
|
|
|
+
|
|
|
+ fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
|
+ fh->width = f->fmt.pix.width;
|
|
|
+ fh->height = f->fmt.pix.height;
|
|
|
+ fh->vb_vidq.field = f->fmt.pix.field;
|
|
|
+ fh->type = f->type;
|
|
|
+
|
|
|
+ dev->fourcc = f->fmt.pix.pixelformat;
|
|
|
+
|
|
|
+ tm6000_set_fourcc_format(dev);
|
|
|
+
|
|
|
+ return (0);
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_reqbufs (struct file *file, void *priv,
|
|
|
+ struct v4l2_requestbuffers *p)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ return (videobuf_reqbufs(&fh->vb_vidq, p));
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_querybuf (struct file *file, void *priv,
|
|
|
+ struct v4l2_buffer *p)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ return (videobuf_querybuf(&fh->vb_vidq, p));
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ return (videobuf_qbuf(&fh->vb_vidq, p));
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ return (videobuf_dqbuf(&fh->vb_vidq, p,
|
|
|
+ file->f_flags & O_NONBLOCK));
|
|
|
+}
|
|
|
+
|
|
|
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
|
+static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+
|
|
|
+ return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
|
|
|
+}
|
|
|
+#endif
|
|
|
+
|
|
|
+static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
|
+ return -EINVAL;
|
|
|
+ if (i != fh->type)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ if (!res_get(dev,fh))
|
|
|
+ return -EBUSY;
|
|
|
+ return (videobuf_streamon(&fh->vb_vidq));
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
|
+ return -EINVAL;
|
|
|
+ if (i != fh->type)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ videobuf_streamoff(&fh->vb_vidq);
|
|
|
+ res_free(dev,fh);
|
|
|
+
|
|
|
+ return (0);
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm)
|
|
|
+{
|
|
|
+ int rc=0;
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ rc=tm6000_set_standard (dev, norm);
|
|
|
+ if (rc<0)
|
|
|
+ return rc;
|
|
|
+
|
|
|
+ tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_enum_input (struct file *file, void *priv,
|
|
|
+ struct v4l2_input *inp)
|
|
|
+{
|
|
|
+ switch (inp->index) {
|
|
|
+ case TM6000_INPUT_TV:
|
|
|
+ inp->type = V4L2_INPUT_TYPE_TUNER;
|
|
|
+ strcpy(inp->name,"Television");
|
|
|
+ break;
|
|
|
+ case TM6000_INPUT_COMPOSITE:
|
|
|
+ inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
|
+ strcpy(inp->name,"Composite");
|
|
|
+ break;
|
|
|
+ case TM6000_INPUT_SVIDEO:
|
|
|
+ inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
|
+ strcpy(inp->name,"S-Video");
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+ inp->std = TM6000_STD;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ *i=dev->input;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ int rc=0;
|
|
|
+ char buf[1];
|
|
|
+
|
|
|
+ switch (i) {
|
|
|
+ case TM6000_INPUT_TV:
|
|
|
+ dev->input=i;
|
|
|
+ *buf=0;
|
|
|
+ break;
|
|
|
+ case TM6000_INPUT_COMPOSITE:
|
|
|
+ case TM6000_INPUT_SVIDEO:
|
|
|
+ dev->input=i;
|
|
|
+ *buf=1;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+ rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR,
|
|
|
+ REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1);
|
|
|
+
|
|
|
+ if (!rc) {
|
|
|
+ dev->input=i;
|
|
|
+ rc=vidioc_s_std (file, priv, &dev->vfd.current_norm);
|
|
|
+ }
|
|
|
+
|
|
|
+ return (rc);
|
|
|
+}
|
|
|
+
|
|
|
+ /* --- controls ---------------------------------------------- */
|
|
|
+static int vidioc_queryctrl (struct file *file, void *priv,
|
|
|
+ struct v4l2_queryctrl *qc)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+
|
|
|
+ for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
|
|
|
+ if (qc->id && qc->id == tm6000_qctrl[i].id) {
|
|
|
+ memcpy(qc, &(tm6000_qctrl[i]),
|
|
|
+ sizeof(*qc));
|
|
|
+ return (0);
|
|
|
+ }
|
|
|
+
|
|
|
+ return -EINVAL;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_g_ctrl (struct file *file, void *priv,
|
|
|
+ struct v4l2_control *ctrl)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh=priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ int val;
|
|
|
+
|
|
|
+ /* FIXME: Probably, those won't work! Maybe we need shadow regs */
|
|
|
+ switch (ctrl->id) {
|
|
|
+ case V4L2_CID_CONTRAST:
|
|
|
+ val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x08, 0);
|
|
|
+ break;
|
|
|
+ case V4L2_CID_BRIGHTNESS:
|
|
|
+ val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x09, 0);
|
|
|
+ return 0;
|
|
|
+ case V4L2_CID_SATURATION:
|
|
|
+ val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, 0);
|
|
|
+ return 0;
|
|
|
+ case V4L2_CID_HUE:
|
|
|
+ val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, 0);
|
|
|
+ return 0;
|
|
|
+ default:
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (val<0)
|
|
|
+ return val;
|
|
|
+
|
|
|
+ ctrl->value=val;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+static int vidioc_s_ctrl (struct file *file, void *priv,
|
|
|
+ struct v4l2_control *ctrl)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh =priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ u8 val=ctrl->value;
|
|
|
+
|
|
|
+ switch (ctrl->id) {
|
|
|
+ case V4L2_CID_CONTRAST:
|
|
|
+ tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x08, val);
|
|
|
+ return 0;
|
|
|
+ case V4L2_CID_BRIGHTNESS:
|
|
|
+ tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x09, val);
|
|
|
+ return 0;
|
|
|
+ case V4L2_CID_SATURATION:
|
|
|
+ tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, val);
|
|
|
+ return 0;
|
|
|
+ case V4L2_CID_HUE:
|
|
|
+ tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, val);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ return -EINVAL;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_g_tuner (struct file *file, void *priv,
|
|
|
+ struct v4l2_tuner *t)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh =priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (unlikely(UNSET == dev->tuner_type))
|
|
|
+ return -EINVAL;
|
|
|
+ if (0 != t->index)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ strcpy(t->name, "Television");
|
|
|
+ t->type = V4L2_TUNER_ANALOG_TV;
|
|
|
+ t->capability = V4L2_TUNER_CAP_NORM;
|
|
|
+ t->rangehigh = 0xffffffffUL;
|
|
|
+ t->rxsubchans = V4L2_TUNER_SUB_MONO;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_s_tuner (struct file *file, void *priv,
|
|
|
+ struct v4l2_tuner *t)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh =priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (UNSET == dev->tuner_type)
|
|
|
+ return -EINVAL;
|
|
|
+ if (0 != t->index)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_g_frequency (struct file *file, void *priv,
|
|
|
+ struct v4l2_frequency *f)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh =priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (unlikely(UNSET == dev->tuner_type))
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ f->type = V4L2_TUNER_ANALOG_TV;
|
|
|
+ f->frequency = dev->freq;
|
|
|
+
|
|
|
+ tm6000_i2c_call_clients(dev,VIDIOC_G_FREQUENCY,f);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int vidioc_s_frequency (struct file *file, void *priv,
|
|
|
+ struct v4l2_frequency *f)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh =priv;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+
|
|
|
+ if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ if (unlikely(UNSET == dev->tuner_type))
|
|
|
+ return -EINVAL;
|
|
|
+ if (unlikely(f->tuner != 0))
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+// mutex_lock(&dev->lock);
|
|
|
+ dev->freq = f->frequency;
|
|
|
+ tm6000_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
|
|
|
+// mutex_unlock(&dev->lock);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* ------------------------------------------------------------------
|
|
|
+ File operations for the device
|
|
|
+ ------------------------------------------------------------------*/
|
|
|
+
|
|
|
+static int tm6000_open(struct inode *inode, struct file *file)
|
|
|
+{
|
|
|
+ int minor = iminor(inode);
|
|
|
+ struct tm6000_core *h,*dev = NULL;
|
|
|
+ struct tm6000_fh *fh;
|
|
|
+ struct list_head *list;
|
|
|
+ enum v4l2_buf_type type = 0;
|
|
|
+ int i,rc;
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called "
|
|
|
+ "(minor=%d)\n",minor);
|
|
|
+
|
|
|
+ list_for_each(list,&tm6000_corelist) {
|
|
|
+ h = list_entry(list, struct tm6000_core, tm6000_corelist);
|
|
|
+ if (h->vfd.minor == minor) {
|
|
|
+ dev = h;
|
|
|
+ type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (NULL == dev)
|
|
|
+ return -ENODEV;
|
|
|
+
|
|
|
+
|
|
|
+ /* If more than one user, mutex should be added */
|
|
|
+ dev->users++;
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "open minor=%d type=%s users=%d\n",
|
|
|
+ minor,v4l2_type_names[type],dev->users);
|
|
|
+
|
|
|
+ /* allocate + initialize per filehandle data */
|
|
|
+ fh = kzalloc(sizeof(*fh),GFP_KERNEL);
|
|
|
+ if (NULL == fh) {
|
|
|
+ dev->users--;
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ file->private_data = fh;
|
|
|
+ fh->dev = dev;
|
|
|
+
|
|
|
+ fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
+ dev->fourcc = format[0].fourcc;
|
|
|
+
|
|
|
+ fh->fmt = format_by_fourcc(dev->fourcc);
|
|
|
+ fh->width = norm_maxw();
|
|
|
+ fh->height = norm_maxh();
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, "
|
|
|
+ "dev->vidq=0x%08lx\n",
|
|
|
+ (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
|
|
|
+ "queued=%d\n",list_empty(&dev->vidq.queued));
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty "
|
|
|
+ "active=%d\n",list_empty(&dev->vidq.active));
|
|
|
+
|
|
|
+ /* initialize hardware on analog mode */
|
|
|
+ if (dev->mode!=TM6000_MODE_ANALOG) {
|
|
|
+ rc=tm6000_init_analog_mode (dev);
|
|
|
+ if (rc<0)
|
|
|
+ return rc;
|
|
|
+
|
|
|
+ /* Put all controls at a sane state */
|
|
|
+ for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++)
|
|
|
+ qctl_regs[i] =tm6000_qctrl[i].default_value;
|
|
|
+
|
|
|
+ dev->mode=TM6000_MODE_ANALOG;
|
|
|
+ }
|
|
|
+
|
|
|
+ videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops,
|
|
|
+ NULL, &dev->slock,
|
|
|
+ fh->type,
|
|
|
+ V4L2_FIELD_INTERLACED,
|
|
|
+ sizeof(struct tm6000_buffer),fh);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static ssize_t
|
|
|
+tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = file->private_data;
|
|
|
+
|
|
|
+ if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
|
+ if (res_locked(fh->dev))
|
|
|
+ return -EBUSY;
|
|
|
+
|
|
|
+ return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0,
|
|
|
+ file->f_flags & O_NONBLOCK);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int
|
|
|
+tm6000_poll(struct file *file, struct poll_table_struct *wait)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = file->private_data;
|
|
|
+ struct tm6000_buffer *buf;
|
|
|
+
|
|
|
+ if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
|
|
|
+ return POLLERR;
|
|
|
+
|
|
|
+ if (res_get(fh->dev,fh)) {
|
|
|
+ /* streaming capture */
|
|
|
+ if (list_empty(&fh->vb_vidq.stream))
|
|
|
+ return POLLERR;
|
|
|
+ buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream);
|
|
|
+ } else {
|
|
|
+ /* read() capture */
|
|
|
+ buf = (struct tm6000_buffer*)fh->vb_vidq.read_buf;
|
|
|
+ if (NULL == buf)
|
|
|
+ return POLLERR;
|
|
|
+ }
|
|
|
+ poll_wait(file, &buf->vb.done, wait);
|
|
|
+ if (buf->vb.state == STATE_DONE ||
|
|
|
+ buf->vb.state == STATE_ERROR)
|
|
|
+ return POLLIN|POLLRDNORM;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int tm6000_release(struct inode *inode, struct file *file)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = file->private_data;
|
|
|
+ struct tm6000_core *dev = fh->dev;
|
|
|
+ struct tm6000_dmaqueue *vidq = &dev->vidq;
|
|
|
+ int minor = iminor(inode);
|
|
|
+
|
|
|
+ tm6000_stop_thread(vidq);
|
|
|
+ videobuf_mmap_free(&fh->vb_vidq);
|
|
|
+
|
|
|
+ kfree (fh);
|
|
|
+
|
|
|
+ dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (minor=%d, users=%d)\n",minor,dev->users);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int tm6000_mmap(struct file *file, struct vm_area_struct * vma)
|
|
|
+{
|
|
|
+ struct tm6000_fh *fh = file->private_data;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static struct file_operations tm6000_fops = {
|
|
|
+ .owner = THIS_MODULE,
|
|
|
+ .open = tm6000_open,
|
|
|
+ .release = tm6000_release,
|
|
|
+ .ioctl = video_ioctl2, /* V4L2 ioctl handler */
|
|
|
+ .read = tm6000_read,
|
|
|
+ .poll = tm6000_poll,
|
|
|
+ .mmap = tm6000_mmap,
|
|
|
+ .llseek = no_llseek,
|
|
|
+};
|
|
|
+
|
|
|
+static struct video_device tm6000_template = {
|
|
|
+ .name = "tm6000",
|
|
|
+ .type = VID_TYPE_CAPTURE,
|
|
|
+ .fops = &tm6000_fops,
|
|
|
+ .minor = -1,
|
|
|
+ .release = video_device_release,
|
|
|
+
|
|
|
+ .vidioc_querycap = vidioc_querycap,
|
|
|
+ .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
|
|
|
+ .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
|
|
|
+ .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
|
|
|
+ .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
|
|
|
+ .vidioc_s_std = vidioc_s_std,
|
|
|
+ .vidioc_enum_input = vidioc_enum_input,
|
|
|
+ .vidioc_g_input = vidioc_g_input,
|
|
|
+ .vidioc_s_input = vidioc_s_input,
|
|
|
+ .vidioc_queryctrl = vidioc_queryctrl,
|
|
|
+ .vidioc_g_ctrl = vidioc_g_ctrl,
|
|
|
+ .vidioc_s_ctrl = vidioc_s_ctrl,
|
|
|
+ .vidioc_g_tuner = vidioc_g_tuner,
|
|
|
+ .vidioc_s_tuner = vidioc_s_tuner,
|
|
|
+ .vidioc_g_frequency = vidioc_g_frequency,
|
|
|
+ .vidioc_s_frequency = vidioc_s_frequency,
|
|
|
+ .vidioc_streamon = vidioc_streamon,
|
|
|
+ .vidioc_streamoff = vidioc_streamoff,
|
|
|
+ .vidioc_reqbufs = vidioc_reqbufs,
|
|
|
+ .vidioc_querybuf = vidioc_querybuf,
|
|
|
+ .vidioc_qbuf = vidioc_qbuf,
|
|
|
+ .vidioc_dqbuf = vidioc_dqbuf,
|
|
|
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
|
+ .vidiocgmbuf = vidiocgmbuf,
|
|
|
+#endif
|
|
|
+ .tvnorms = TM6000_STD,
|
|
|
+ .current_norm = V4L2_STD_NTSC_M,
|
|
|
+};
|
|
|
+/* -----------------------------------------------------------------
|
|
|
+ Initialization and module stuff
|
|
|
+ ------------------------------------------------------------------*/
|
|
|
+
|
|
|
+int tm6000_v4l2_register(struct tm6000_core *dev)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ list_add_tail(&dev->tm6000_corelist,&tm6000_corelist);
|
|
|
+
|
|
|
+ /* init video dma queues */
|
|
|
+ INIT_LIST_HEAD(&dev->vidq.active);
|
|
|
+ INIT_LIST_HEAD(&dev->vidq.queued);
|
|
|
+
|
|
|
+ dev->vidq.timeout.function = tm6000_vid_timeout;
|
|
|
+ dev->vidq.timeout.data = (unsigned long)dev;
|
|
|
+ init_timer(&dev->vidq.timeout);
|
|
|
+
|
|
|
+ memcpy (&dev->vfd, &tm6000_template, sizeof(dev->vfd));
|
|
|
+ dev->vfd.debug=tm6000_debug;
|
|
|
+
|
|
|
+ ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, video_nr);
|
|
|
+ printk(KERN_INFO "Trident TVMaster TM5600/TM6000 USB2 board (Load status: %d)\n", ret);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+int tm6000_v4l2_unregister(struct tm6000_core *dev)
|
|
|
+{
|
|
|
+ struct tm6000_core *h;
|
|
|
+ struct list_head *list;
|
|
|
+
|
|
|
+ while (!list_empty(&tm6000_corelist)) {
|
|
|
+ list = tm6000_corelist.next;
|
|
|
+ h = list_entry(list, struct tm6000_core, tm6000_corelist);
|
|
|
+ if (h == dev) {
|
|
|
+ video_unregister_device(&dev->vfd);
|
|
|
+ list_del(list);
|
|
|
+ kfree (h);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+int tm6000_v4l2_exit(void)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+module_param(video_nr, int, 0);
|
|
|
+MODULE_PARM_DESC(video_nr,"Allow changing video device number");
|
|
|
+
|
|
|
+module_param_named (debug, tm6000_debug, int, 0444);
|
|
|
+MODULE_PARM_DESC(debug,"activates debug info");
|
|
|
+
|
|
|
+module_param(vid_limit,int,0644);
|
|
|
+MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
|
|
|
+
|
Mauro Carvalho Chehab