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authorMaxim Levitsky <maximlevitsky@gmail.com>2007-09-27 20:34:25 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-10-10 00:02:59 -0300
commitcb71201f20e43581857043a1f856fb61ce44bdf8 (patch)
treefc16d5eebc8dbf48d0dcb7b0c0eb35609a5231d7 /drivers/media/video/saa7134/saa7134-ts.c
parentf5a1ac64cc444cf19c8817d61a410b70bbb619d9 (diff)
V4L/DVB (6271): V4L: Add basic support for suspend/resume for saa7134
This adds support for suspend/resume for core of saa7134 Should fix bug#7220 Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-ts.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-ts.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/media/video/saa7134/saa7134-ts.c b/drivers/media/video/saa7134/saa7134-ts.c
index 5b1d1dafb5a..4b63ad3e846 100644
--- a/drivers/media/video/saa7134/saa7134-ts.c
+++ b/drivers/media/video/saa7134/saa7134-ts.c
@@ -177,6 +177,22 @@ 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, 0xec);
+ 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 */
@@ -200,12 +216,7 @@ int saa7134_ts_init1(struct saa7134_dev *dev)
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 */
+ saa7134_ts_init_hw(dev);
return 0;
}