V4L/DVB (5542): Budget-av: Remove polarity switching of the clock for DVB-C
Remove the polarity switching of the clock for the DVB-C cards in
budget-av.c. This hack is no longer necessary because the saa7146 can
do the job to remove the additional FEC bytes from the TS.
Signed-off-by: Hartmut Birr <e9hack@googlemail.com>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/ttpci/budget-core.c b/drivers/media/dvb/ttpci/budget-core.c
index e15562f..cef9d8d 100644
--- a/drivers/media/dvb/ttpci/budget-core.c
+++ b/drivers/media/dvb/ttpci/budget-core.c
@@ -41,11 +41,14 @@
#define TS_WIDTH (2 * TS_SIZE)
#define TS_WIDTH_ACTIVY TS_SIZE
+#define TS_WIDTH_DVBC TS_SIZE
#define TS_HEIGHT_MASK 0xf00
#define TS_HEIGHT_MASK_ACTIVY 0xc00
+#define TS_HEIGHT_MASK_DVBC 0xe00
#define TS_MIN_BUFSIZE_K 188
#define TS_MAX_BUFSIZE_K 1410
#define TS_MAX_BUFSIZE_K_ACTIVY 564
+#define TS_MAX_BUFSIZE_K_DVBC 1316
#define BUFFER_WARNING_WAIT (30*HZ)
int budget_debug;
@@ -122,7 +125,13 @@
mdelay(10);
saa7146_write(dev, BASE_ODD3, 0);
- saa7146_write(dev, BASE_EVEN3, 0);
+ if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
+ // using odd/even buffers
+ saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
+ } else {
+ // using a single buffer
+ saa7146_write(dev, BASE_EVEN3, 0);
+ }
saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
@@ -399,11 +408,22 @@
budget->card = bi;
budget->dev = (struct saa7146_dev *) dev;
- if (budget->card->type == BUDGET_FS_ACTIVY) {
+ switch(budget->card->type) {
+ case BUDGET_FS_ACTIVY:
budget->buffer_width = TS_WIDTH_ACTIVY;
max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
height_mask = TS_HEIGHT_MASK_ACTIVY;
- } else {
+ break;
+
+ case BUDGET_KNC1C:
+ case BUDGET_KNC1CP:
+ case BUDGET_CIN1200C:
+ budget->buffer_width = TS_WIDTH_DVBC;
+ max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
+ height_mask = TS_HEIGHT_MASK_DVBC;
+ break;
+
+ default:
budget->buffer_width = TS_WIDTH;
max_bufsize = TS_MAX_BUFSIZE_K;
height_mask = TS_HEIGHT_MASK;
@@ -415,14 +435,22 @@
dma_buffer_size = max_bufsize;
budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
- budget->buffer_height &= height_mask;
- budget->buffer_size = budget->buffer_height * budget->buffer_width;
+ if (budget->buffer_height > 0xfff) {
+ budget->buffer_height /= 2;
+ budget->buffer_height &= height_mask;
+ budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
+ } else {
+ budget->buffer_height &= height_mask;
+ budget->buffer_size = budget->buffer_height * budget->buffer_width;
+ }
budget->buffer_warning_threshold = budget->buffer_size * 80/100;
budget->buffer_warnings = 0;
budget->buffer_warning_time = jiffies;
- dprintk(2, "%s: width = %d, height = %d\n",
- budget->dev->name, budget->buffer_width, budget->buffer_height);
+ dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
+ budget->dev->name,
+ budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
+ budget->buffer_width, budget->buffer_height);
printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
if ((ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner, &budget->dev->pci->dev)) < 0) {