/*
- * $Id: saa7134-ts.c,v 1.12 2004/11/07 13:17:15 kraxel Exp $
- *
* device driver for philips saa7134 based TV cards
* video4linux video interface
*
#include "saa7134-reg.h"
#include "saa7134.h"
+#include <media/saa6752hs.h>
+
/* ------------------------------------------------------------------ */
+#define TS_PACKET_SIZE 188 /* TS packets 188 bytes */
+
static unsigned int ts_debug = 0;
-module_param(ts_debug, int, 0644);
+MODULE_PARM(ts_debug,"i");
MODULE_PARM_DESC(ts_debug,"enable debug messages [ts]");
+static unsigned int tsbufs = 4;
+MODULE_PARM(tsbufs,"i");
+MODULE_PARM_DESC(tsbufs,"number of ts buffers, range 2-32");
+
+static unsigned int ts_nr_packets = 30;
+MODULE_PARM(ts_nr_packets,"i");
+MODULE_PARM_DESC(ts_nr_packets,"size of a ts buffers (in ts packets)");
+
#define dprintk(fmt, arg...) if (ts_debug) \
printk(KERN_DEBUG "%s/ts: " fmt, dev->name , ## arg)
struct saa7134_buf *next)
{
u32 control;
-
+
dprintk("buffer_activate [%p]",buf);
buf->vb.state = STATE_ACTIVE;
buf->top_seen = 0;
-
+
/* dma: setup channel 5 (= TS) */
control = SAA7134_RS_CONTROL_BURST_16 |
SAA7134_RS_CONTROL_ME |
/* start DMA */
saa7134_set_dmabits(dev);
-
+
mod_timer(&dev->ts_q.timeout, jiffies+BUFFER_TIMEOUT);
return 0;
}
-static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+static int buffer_prepare(struct file *file, struct videobuf_buffer *vb,
enum v4l2_field field)
{
- struct saa7134_dev *dev = q->priv_data;
- struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+ struct saa7134_dev *dev = file->private_data;
+ struct saa7134_buf *buf = (struct saa7134_buf *)vb;
unsigned int lines, llength, size;
int err;
-
+
dprintk("buffer_prepare [%p,%s]\n",buf,v4l2_field_names[field]);
llength = TS_PACKET_SIZE;
- lines = dev->ts.nr_packets;
-
+ lines = ts_nr_packets;
+
size = lines * llength;
if (0 != buf->vb.baddr && buf->vb.bsize < size)
return -EINVAL;
}
static int
-buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+buffer_setup(struct file *file, unsigned int *count, unsigned int *size)
{
- struct saa7134_dev *dev = q->priv_data;
-
- *size = TS_PACKET_SIZE * dev->ts.nr_packets;
+ *size = TS_PACKET_SIZE * ts_nr_packets;
if (0 == *count)
- *count = dev->ts.nr_bufs;
+ *count = tsbufs;
*count = saa7134_buffer_count(*size,*count);
return 0;
}
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void buffer_queue(struct file *file, struct videobuf_buffer *vb)
{
- struct saa7134_dev *dev = q->priv_data;
- struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
-
+ struct saa7134_dev *dev = file->private_data;
+ struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+
saa7134_buffer_queue(dev,&dev->ts_q,buf);
}
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void buffer_release(struct file *file, struct videobuf_buffer *vb)
{
- struct saa7134_dev *dev = q->priv_data;
- struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
-
+ struct saa7134_dev *dev = file->private_data;
+ struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+
saa7134_dma_free(dev,buf);
}
-struct videobuf_queue_ops saa7134_ts_qops = {
+static struct videobuf_queue_ops ts_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
-EXPORT_SYMBOL_GPL(saa7134_ts_qops);
+
+
+/* ------------------------------------------------------------------ */
+
+static void ts_reset_encoder(struct saa7134_dev* dev)
+{
+ saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
+ mdelay(10);
+ saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/10);
+}
+
+static int ts_init_encoder(struct saa7134_dev* dev, void* arg)
+{
+ ts_reset_encoder(dev);
+ saa7134_i2c_call_clients(dev, MPEG_SETPARAMS, arg);
+ return 0;
+}
+
+
+/* ------------------------------------------------------------------ */
+
+static int ts_open(struct inode *inode, struct file *file)
+{
+ int minor = iminor(inode);
+ struct saa7134_dev *h,*dev = NULL;
+ struct list_head *list;
+ int err;
+
+ list_for_each(list,&saa7134_devlist) {
+ h = list_entry(list, struct saa7134_dev, devlist);
+ if (h->ts_dev && h->ts_dev->minor == minor)
+ dev = h;
+ }
+ if (NULL == dev)
+ return -ENODEV;
+
+ dprintk("open minor=%d\n",minor);
+ down(&dev->ts.ts.lock);
+ err = -EBUSY;
+ if (dev->ts.users)
+ goto done;
+
+ dev->ts.started = 0;
+ dev->ts.users++;
+ file->private_data = dev;
+ err = 0;
+
+ done:
+ up(&dev->ts.ts.lock);
+ return err;
+}
+
+static int ts_release(struct inode *inode, struct file *file)
+{
+ struct saa7134_dev *dev = file->private_data;
+
+ if (dev->ts.ts.streaming)
+ videobuf_streamoff(file,&dev->ts.ts);
+ down(&dev->ts.ts.lock);
+ if (dev->ts.ts.reading)
+ videobuf_read_stop(file,&dev->ts.ts);
+ dev->ts.users--;
+
+ /* stop the encoder */
+ if (dev->ts.started)
+ ts_reset_encoder(dev);
+
+ up(&dev->ts.ts.lock);
+ return 0;
+}
+
+static ssize_t
+ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
+{
+ struct saa7134_dev *dev = file->private_data;
+
+ if (!dev->ts.started) {
+ ts_init_encoder(dev, NULL);
+ dev->ts.started = 1;
+ }
+
+ return videobuf_read_stream(file, &dev->ts.ts, data, count, ppos, 0);
+}
+
+static unsigned int
+ts_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct saa7134_dev *dev = file->private_data;
+
+ return videobuf_poll_stream(file, &dev->ts.ts, wait);
+}
+
+
+static int
+ts_mmap(struct file *file, struct vm_area_struct * vma)
+{
+ struct saa7134_dev *dev = file->private_data;
+
+ return videobuf_mmap_mapper(vma, &dev->ts.ts);
+}
+
+/*
+ * This function is _not_ called directly, but from
+ * video_generic_ioctl (and maybe others). userspace
+ * copying is done already, arg is a kernel pointer.
+ */
+static int ts_do_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, void *arg)
+{
+ struct saa7134_dev *dev = file->private_data;
+
+ if (ts_debug > 1)
+ saa7134_print_ioctl(dev->name,cmd);
+ switch (cmd) {
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *cap = arg;
+
+ memset(cap,0,sizeof(*cap));
+ strcpy(cap->driver, "saa7134");
+ strlcpy(cap->card, saa7134_boards[dev->board].name,
+ sizeof(cap->card));
+ sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
+ cap->version = SAA7134_VERSION_CODE;
+ cap->capabilities =
+ V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING;
+ return 0;
+ }
+
+ /* --- input switching --------------------------------------- */
+ case VIDIOC_ENUMINPUT:
+ {
+ struct v4l2_input *i = arg;
+
+ if (i->index != 0)
+ return -EINVAL;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ strcpy(i->name,"CCIR656");
+ return 0;
+ }
+ case VIDIOC_G_INPUT:
+ {
+ int *i = arg;
+ *i = 0;
+ return 0;
+ }
+ case VIDIOC_S_INPUT:
+ {
+ int *i = arg;
+
+ if (*i != 0)
+ return -EINVAL;
+ return 0;
+ }
+ /* --- capture ioctls ---------------------------------------- */
+
+ case VIDIOC_ENUM_FMT:
+ {
+ struct v4l2_fmtdesc *f = arg;
+ int index;
+
+ index = f->index;
+ if (index != 0)
+ return -EINVAL;
+
+ memset(f,0,sizeof(*f));
+ f->index = index;
+ strlcpy(f->description, "MPEG TS", sizeof(f->description));
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ f->pixelformat = V4L2_PIX_FMT_MPEG;
+ return 0;
+ }
+
+ case VIDIOC_G_FMT:
+ {
+ struct v4l2_format *f = arg;
+
+ memset(f,0,sizeof(*f));
+ f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ /* FIXME: translate subsampling type EMPRESS into
+ * width/height: */
+ f->fmt.pix.width = 720; /* D1 */
+ f->fmt.pix.height = 576;
+ f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
+ f->fmt.pix.sizeimage = TS_PACKET_SIZE*ts_nr_packets;
+ return 0;
+ }
+
+ case VIDIOC_S_FMT:
+ {
+ struct v4l2_format *f = arg;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ /*
+ FIXME: translate and round width/height into EMPRESS
+ subsample type:
+
+ type | PAL | NTSC
+ ---------------------------
+ SIF | 352x288 | 352x240
+ 1/2 D1 | 352x576 | 352x480
+ 2/3 D1 | 480x576 | 480x480
+ D1 | 720x576 | 720x480
+ */
+
+ f->fmt.pix.width = 720; /* D1 */
+ f->fmt.pix.height = 576;
+ f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
+ f->fmt.pix.sizeimage = TS_PACKET_SIZE*ts_nr_packets;
+ return 0;
+ }
+
+ case VIDIOC_REQBUFS:
+ return videobuf_reqbufs(file,&dev->ts.ts,arg);
+
+ case VIDIOC_QUERYBUF:
+ return videobuf_querybuf(&dev->ts.ts,arg);
+
+ case VIDIOC_QBUF:
+ return videobuf_qbuf(file,&dev->ts.ts,arg);
+
+ case VIDIOC_DQBUF:
+ return videobuf_dqbuf(file,&dev->ts.ts,arg);
+
+ case VIDIOC_STREAMON:
+ return videobuf_streamon(file,&dev->ts.ts);
+
+ case VIDIOC_STREAMOFF:
+ return videobuf_streamoff(file,&dev->ts.ts);
+
+ case VIDIOC_QUERYCTRL:
+ case VIDIOC_G_CTRL:
+ case VIDIOC_S_CTRL:
+ return saa7134_common_ioctl(dev, cmd, arg);
+
+ case MPEG_SETPARAMS:
+ return ts_init_encoder(dev, arg);
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+ return 0;
+}
+
+static int ts_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return video_usercopy(inode, file, cmd, arg, ts_do_ioctl);
+}
+
+
+static struct file_operations ts_fops =
+{
+ .owner = THIS_MODULE,
+ .open = ts_open,
+ .release = ts_release,
+ .read = ts_read,
+ .poll = ts_poll,
+ .mmap = ts_mmap,
+ .ioctl = ts_ioctl,
+ .llseek = no_llseek,
+};
+
/* ----------------------------------------------------------- */
/* exported stuff */
-static unsigned int tsbufs = 4;
-module_param(tsbufs, int, 0444);
-MODULE_PARM_DESC(tsbufs,"number of ts buffers, range 2-32");
-
-static unsigned int ts_nr_packets = 30;
-module_param(ts_nr_packets, int, 0444);
-MODULE_PARM_DESC(ts_nr_packets,"size of a ts buffers (in ts packets)");
+struct video_device saa7134_ts_template =
+{
+ .name = "saa7134-ts",
+ .type = 0 /* FIXME */,
+ .type2 = 0 /* FIXME */,
+ .hardware = 0,
+ .fops = &ts_fops,
+ .minor = -1,
+};
int saa7134_ts_init1(struct saa7134_dev *dev)
{
ts_nr_packets = 4;
if (ts_nr_packets > 312)
ts_nr_packets = 312;
- dev->ts.nr_bufs = tsbufs;
- dev->ts.nr_packets = ts_nr_packets;
INIT_LIST_HEAD(&dev->ts_q.queue);
init_timer(&dev->ts_q.timeout);
dev->ts_q.timeout.data = (unsigned long)(&dev->ts_q);
dev->ts_q.dev = dev;
dev->ts_q.need_two = 1;
+ videobuf_queue_init(&dev->ts.ts, &ts_qops, dev->pci, &dev->slock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_ALTERNATE,
+ sizeof(struct saa7134_buf));
saa7134_pgtable_alloc(dev->pci,&dev->ts.pt_ts);
/* init TS hw */
saa_writeb(SAA7134_TS_SERIAL1, 0x00); /* deactivate TS softreset */
saa_writeb(SAA7134_TS_PARALLEL, 0xec); /* TSSOP high active, TSVAL high active, TSLOCK ignored */
saa_writeb(SAA7134_TS_PARALLEL_SERIAL, (TS_PACKET_SIZE-1));
- saa_writeb(SAA7134_TS_DMA0, ((dev->ts.nr_packets-1)&0xff));
- saa_writeb(SAA7134_TS_DMA1, (((dev->ts.nr_packets-1)>>8)&0xff));
- saa_writeb(SAA7134_TS_DMA2, ((((dev->ts.nr_packets-1)>>16)&0x3f) | 0x00)); /* TSNOPIT=0, TSCOLAP=0 */
-
+ saa_writeb(SAA7134_TS_DMA0, ((ts_nr_packets-1)&0xff));
+ saa_writeb(SAA7134_TS_DMA1, (((ts_nr_packets-1)>>8)&0xff));
+ saa_writeb(SAA7134_TS_DMA2, ((((ts_nr_packets-1)>>16)&0x3f) | 0x00)); /* TSNOPIT=0, TSCOLAP=0 */
+
return 0;
}
int saa7134_ts_fini(struct saa7134_dev *dev)
{
+ /* nothing */
saa7134_pgtable_free(dev->pci,&dev->ts.pt_ts);
return 0;
}
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