diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-ts.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-ts.c | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/drivers/media/video/saa7134/saa7134-ts.c b/drivers/media/video/saa7134/saa7134-ts.c deleted file mode 100644 index 2e3f4b412d8..00000000000 --- a/drivers/media/video/saa7134/saa7134-ts.c +++ /dev/null @@ -1,327 +0,0 @@ -/* - * - * device driver for philips saa7134 based TV cards - * video4linux video interface - * - * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/init.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/delay.h> - -#include "saa7134-reg.h" -#include "saa7134.h" - -/* ------------------------------------------------------------------ */ - -static unsigned int ts_debug; -module_param(ts_debug, int, 0644); -MODULE_PARM_DESC(ts_debug,"enable debug messages [ts]"); - -#define dprintk(fmt, arg...) if (ts_debug) \ - printk(KERN_DEBUG "%s/ts: " fmt, dev->name , ## arg) - -/* ------------------------------------------------------------------ */ - -static int buffer_activate(struct saa7134_dev *dev, - struct saa7134_buf *buf, - struct saa7134_buf *next) -{ - - dprintk("buffer_activate [%p]",buf); - buf->vb.state = VIDEOBUF_ACTIVE; - buf->top_seen = 0; - - if (NULL == next) - next = buf; - if (V4L2_FIELD_TOP == buf->vb.field) { - dprintk("- [top] buf=%p next=%p\n",buf,next); - saa_writel(SAA7134_RS_BA1(5),saa7134_buffer_base(buf)); - saa_writel(SAA7134_RS_BA2(5),saa7134_buffer_base(next)); - } else { - dprintk("- [bottom] buf=%p next=%p\n",buf,next); - saa_writel(SAA7134_RS_BA1(5),saa7134_buffer_base(next)); - saa_writel(SAA7134_RS_BA2(5),saa7134_buffer_base(buf)); - } - - /* start DMA */ - saa7134_set_dmabits(dev); - - mod_timer(&dev->ts_q.timeout, jiffies+TS_BUFFER_TIMEOUT); - - if (!dev->ts_started) - saa7134_ts_start(dev); - - return 0; -} - -static int buffer_prepare(struct videobuf_queue *q, 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); - 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; - - size = lines * llength; - if (0 != buf->vb.baddr && buf->vb.bsize < size) - return -EINVAL; - - if (buf->vb.size != size) { - saa7134_dma_free(q,buf); - } - - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - - dprintk("buffer_prepare: needs_init\n"); - - buf->vb.width = llength; - buf->vb.height = lines; - buf->vb.size = size; - buf->pt = &dev->ts.pt_ts; - - err = videobuf_iolock(q,&buf->vb,NULL); - if (err) - goto oops; - err = saa7134_pgtable_build(dev->pci,buf->pt, - dma->sglist, - dma->sglen, - saa7134_buffer_startpage(buf)); - if (err) - goto oops; - } - - buf->vb.state = VIDEOBUF_PREPARED; - buf->activate = buffer_activate; - buf->vb.field = field; - return 0; - - oops: - saa7134_dma_free(q,buf); - return err; -} - -static int -buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - struct saa7134_dev *dev = q->priv_data; - - *size = TS_PACKET_SIZE * dev->ts.nr_packets; - if (0 == *count) - *count = dev->ts.nr_bufs; - *count = saa7134_buffer_count(*size,*count); - - return 0; -} - -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct saa7134_dev *dev = q->priv_data; - struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb); - - saa7134_buffer_queue(dev,&dev->ts_q,buf); -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb); - struct saa7134_dev *dev = q->priv_data; - - if (dev->ts_started) - saa7134_ts_stop(dev); - - saa7134_dma_free(q,buf); -} - -struct videobuf_queue_ops saa7134_ts_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; -EXPORT_SYMBOL_GPL(saa7134_ts_qops); - -/* ----------------------------------------------------------- */ -/* exported stuff */ - -static unsigned int tsbufs = 8; -module_param(tsbufs, int, 0444); -MODULE_PARM_DESC(tsbufs, "number of ts buffers for read/write IO, range 2-32"); - -static unsigned int ts_nr_packets = 64; -module_param(ts_nr_packets, int, 0444); -MODULE_PARM_DESC(ts_nr_packets,"size of a ts buffers (in ts packets)"); - -int saa7134_ts_init_hw(struct saa7134_dev *dev) -{ - /* deactivate TS softreset */ - saa_writeb(SAA7134_TS_SERIAL1, 0x00); - /* TSSOP high active, TSVAL high active, TSLOCK ignored */ - saa_writeb(SAA7134_TS_PARALLEL, 0x6c); - 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)); - /* TSNOPIT=0, TSCOLAP=0 */ - saa_writeb(SAA7134_TS_DMA2, - ((((dev->ts.nr_packets-1)>>16)&0x3f) | 0x00)); - - return 0; -} - -int saa7134_ts_init1(struct saa7134_dev *dev) -{ - /* sanitycheck insmod options */ - if (tsbufs < 2) - tsbufs = 2; - if (tsbufs > VIDEO_MAX_FRAME) - tsbufs = VIDEO_MAX_FRAME; - if (ts_nr_packets < 4) - 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.function = saa7134_buffer_timeout; - dev->ts_q.timeout.data = (unsigned long)(&dev->ts_q); - dev->ts_q.dev = dev; - dev->ts_q.need_two = 1; - dev->ts_started = 0; - saa7134_pgtable_alloc(dev->pci,&dev->ts.pt_ts); - - /* init TS hw */ - saa7134_ts_init_hw(dev); - - return 0; -} - -/* Function for stop TS */ -int saa7134_ts_stop(struct saa7134_dev *dev) -{ - dprintk("TS stop\n"); - - BUG_ON(!dev->ts_started); - - /* Stop TS stream */ - switch (saa7134_boards[dev->board].ts_type) { - case SAA7134_MPEG_TS_PARALLEL: - saa_writeb(SAA7134_TS_PARALLEL, 0x6c); - dev->ts_started = 0; - break; - case SAA7134_MPEG_TS_SERIAL: - saa_writeb(SAA7134_TS_SERIAL0, 0x40); - dev->ts_started = 0; - break; - } - return 0; -} - -/* Function for start TS */ -int saa7134_ts_start(struct saa7134_dev *dev) -{ - dprintk("TS start\n"); - - BUG_ON(dev->ts_started); - - /* dma: setup channel 5 (= TS) */ - saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff); - saa_writeb(SAA7134_TS_DMA1, - ((dev->ts.nr_packets - 1) >> 8) & 0xff); - /* TSNOPIT=0, TSCOLAP=0 */ - saa_writeb(SAA7134_TS_DMA2, - (((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00); - saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE); - saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 | - SAA7134_RS_CONTROL_ME | - (dev->ts.pt_ts.dma >> 12)); - - /* reset hardware TS buffers */ - saa_writeb(SAA7134_TS_SERIAL1, 0x00); - saa_writeb(SAA7134_TS_SERIAL1, 0x03); - saa_writeb(SAA7134_TS_SERIAL1, 0x00); - saa_writeb(SAA7134_TS_SERIAL1, 0x01); - - /* TS clock non-inverted */ - saa_writeb(SAA7134_TS_SERIAL1, 0x00); - - /* Start TS stream */ - switch (saa7134_boards[dev->board].ts_type) { - case SAA7134_MPEG_TS_PARALLEL: - saa_writeb(SAA7134_TS_SERIAL0, 0x40); - saa_writeb(SAA7134_TS_PARALLEL, 0xec | - (saa7134_boards[dev->board].ts_force_val << 4)); - break; - case SAA7134_MPEG_TS_SERIAL: - saa_writeb(SAA7134_TS_SERIAL0, 0xd8); - saa_writeb(SAA7134_TS_PARALLEL, 0x6c | - (saa7134_boards[dev->board].ts_force_val << 4)); - saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 0xbc); - saa_writeb(SAA7134_TS_SERIAL1, 0x02); - break; - } - - dev->ts_started = 1; - - return 0; -} - -int saa7134_ts_fini(struct saa7134_dev *dev) -{ - saa7134_pgtable_free(dev->pci,&dev->ts.pt_ts); - return 0; -} - -void saa7134_irq_ts_done(struct saa7134_dev *dev, unsigned long status) -{ - enum v4l2_field field; - - spin_lock(&dev->slock); - if (dev->ts_q.curr) { - field = dev->ts_q.curr->vb.field; - if (field == V4L2_FIELD_TOP) { - if ((status & 0x100000) != 0x000000) - goto done; - } else { - if ((status & 0x100000) != 0x100000) - goto done; - } - saa7134_buffer_finish(dev,&dev->ts_q,VIDEOBUF_DONE); - } - saa7134_buffer_next(dev,&dev->ts_q); - - done: - spin_unlock(&dev->slock); -} - -/* ----------------------------------------------------------- */ -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |