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V4L/DVB (8889): dvb-ttpci: Support full-ts hardware modification
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Add support for the 'full-ts' hardware modification.

On full-featured cards the data throughput is limited by the hardware
design. The full-ts mod removes this bottleneck, i.e. the card is able
to deliver the complete transport stream of a transponder.

For details see http://www.escape-edv.de/endriss/dvb-full-ts-mod

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Oliver Endriss authored and Mauro Carvalho Chehab committed Oct 12, 2008
1 parent 81ae953 commit 9e615ea
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Showing 3 changed files with 92 additions and 25 deletions.
113 changes: 88 additions & 25 deletions drivers/media/dvb/ttpci/av7110.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,7 @@ static int budgetpatch;
static int wss_cfg_4_3 = 0x4008;
static int wss_cfg_16_9 = 0x0007;
static int tv_standard;
static int full_ts;

module_param_named(debug, av7110_debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (bitmask, default 0)");
Expand All @@ -106,6 +107,8 @@ module_param(volume, int, 0444);
MODULE_PARM_DESC(volume, "initial volume: default 255 (range 0-255)");
module_param(budgetpatch, int, 0444);
MODULE_PARM_DESC(budgetpatch, "use budget-patch hardware modification: default 0 (0 no, 1 autodetect, 2 always)");
module_param(full_ts, int, 0444);
MODULE_PARM_DESC(full_ts, "enable code for full-ts hardware modification: 0 disable (default), 1 enable");
module_param(wss_cfg_4_3, int, 0444);
MODULE_PARM_DESC(wss_cfg_4_3, "WSS 4:3 - default 0x4008 - bit 15: disable, 14: burst mode, 13..0: wss data");
module_param(wss_cfg_16_9, int, 0444);
Expand All @@ -116,6 +119,8 @@ MODULE_PARM_DESC(tv_standard, "TV standard: 0 PAL (default), 1 NTSC");
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static void restart_feeds(struct av7110 *av7110);
static int budget_start_feed(struct dvb_demux_feed *feed);
static int budget_stop_feed(struct dvb_demux_feed *feed);

static int av7110_num;

Expand Down Expand Up @@ -806,6 +811,9 @@ static int StartHWFilter(struct dvb_demux_filter *dvbdmxfilter)

dprintk(4, "%p\n", av7110);

if (av7110->full_ts)
return 0;

if (dvbdmxfilter->type == DMX_TYPE_SEC) {
if (hw_sections) {
buf[4] = (dvbdmxfilter->filter.filter_value[0] << 8) |
Expand Down Expand Up @@ -854,6 +862,9 @@ static int StopHWFilter(struct dvb_demux_filter *dvbdmxfilter)

dprintk(4, "%p\n", av7110);

if (av7110->full_ts)
return 0;

handle = dvbdmxfilter->hw_handle;
if (handle >= 32) {
printk("%s tried to stop invalid filter %04x, filter type = %x\n",
Expand Down Expand Up @@ -913,7 +924,7 @@ static int dvb_feed_start_pid(struct dvb_demux_feed *dvbdmxfeed)
return ret;
}

if ((dvbdmxfeed->ts_type & TS_PACKET)) {
if ((dvbdmxfeed->ts_type & TS_PACKET) && !av7110->full_ts) {
if (dvbdmxfeed->pes_type == 0 && !(dvbdmx->pids[0] & 0x8000))
ret = av7110_av_start_record(av7110, RP_AUDIO, dvbdmxfeed);
if (dvbdmxfeed->pes_type == 1 && !(dvbdmx->pids[1] & 0x8000))
Expand Down Expand Up @@ -974,7 +985,7 @@ static int av7110_start_feed(struct dvb_demux_feed *feed)
if (!demux->dmx.frontend)
return -EINVAL;

if (feed->pid > 0x1fff)
if (!av7110->full_ts && feed->pid > 0x1fff)
return -EINVAL;

if (feed->type == DMX_TYPE_TS) {
Expand Down Expand Up @@ -1003,7 +1014,12 @@ static int av7110_start_feed(struct dvb_demux_feed *feed)
}
}

else if (feed->type == DMX_TYPE_SEC) {
if (av7110->full_ts) {
budget_start_feed(feed);
return ret;
}

if (feed->type == DMX_TYPE_SEC) {
int i;

for (i = 0; i < demux->filternum; i++) {
Expand Down Expand Up @@ -1050,7 +1066,12 @@ static int av7110_stop_feed(struct dvb_demux_feed *feed)
ret = StopHWFilter(feed->filter);
}

if (!ret && feed->type == DMX_TYPE_SEC) {
if (av7110->full_ts) {
budget_stop_feed(feed);
return ret;
}

if (feed->type == DMX_TYPE_SEC) {
for (i = 0; i<demux->filternum; i++) {
if (demux->filter[i].state == DMX_STATE_GO &&
demux->filter[i].filter.parent == &feed->feed.sec) {
Expand All @@ -1074,6 +1095,7 @@ static void restart_feeds(struct av7110 *av7110)
struct dvb_demux *dvbdmx = &av7110->demux;
struct dvb_demux_feed *feed;
int mode;
int feeding;
int i, j;

dprintk(4, "%p\n", av7110);
Expand All @@ -1082,6 +1104,8 @@ static void restart_feeds(struct av7110 *av7110)
av7110->playing = 0;
av7110->rec_mode = 0;

feeding = av7110->feeding1; /* full_ts mod */

for (i = 0; i < dvbdmx->feednum; i++) {
feed = &dvbdmx->feed[i];
if (feed->state == DMX_STATE_GO) {
Expand All @@ -1099,6 +1123,8 @@ static void restart_feeds(struct av7110 *av7110)
}
}

av7110->feeding1 = feeding; /* full_ts mod */

if (mode)
av7110_av_start_play(av7110, mode);
}
Expand Down Expand Up @@ -1197,8 +1223,9 @@ static int start_ts_capture(struct av7110 *budget)

if (budget->feeding1)
return ++budget->feeding1;
memset(budget->grabbing, 0x00, TS_HEIGHT * TS_WIDTH);
memset(budget->grabbing, 0x00, TS_BUFLEN);
budget->ttbp = 0;
SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */
SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */
saa7146_write(budget->dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */
return ++budget->feeding1;
Expand Down Expand Up @@ -1239,12 +1266,8 @@ static void vpeirq(unsigned long data)
u8 *mem = (u8 *) (budget->grabbing);
u32 olddma = budget->ttbp;
u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
struct dvb_demux *demux = budget->full_ts ? &budget->demux : &budget->demux1;

if (!budgetpatch) {
printk("av7110.c: vpeirq() called while budgetpatch disabled!"
" check saa7146 IER register\n");
BUG();
}
/* nearest lower position divisible by 188 */
newdma -= newdma % 188;

Expand All @@ -1268,11 +1291,11 @@ static void vpeirq(unsigned long data)

if (newdma > olddma)
/* no wraparound, dump olddma..newdma */
dvb_dmx_swfilter_packets(&budget->demux1, mem + olddma, (newdma - olddma) / 188);
dvb_dmx_swfilter_packets(demux, mem + olddma, (newdma - olddma) / 188);
else {
/* wraparound, dump olddma..buflen and 0..newdma */
dvb_dmx_swfilter_packets(&budget->demux1, mem + olddma, (TS_BUFLEN - olddma) / 188);
dvb_dmx_swfilter_packets(&budget->demux1, mem, newdma / 188);
dvb_dmx_swfilter_packets(demux, mem + olddma, (TS_BUFLEN - olddma) / 188);
dvb_dmx_swfilter_packets(demux, mem, newdma / 188);
}
}

Expand All @@ -1294,8 +1317,8 @@ static int av7110_register(struct av7110 *av7110)
for (i = 0; i < 32; i++)
av7110->handle2filter[i] = NULL;

dvbdemux->filternum = 32;
dvbdemux->feednum = 32;
dvbdemux->filternum = (av7110->full_ts) ? 256 : 32;
dvbdemux->feednum = (av7110->full_ts) ? 256 : 32;
dvbdemux->start_feed = av7110_start_feed;
dvbdemux->stop_feed = av7110_stop_feed;
dvbdemux->write_to_decoder = av7110_write_to_decoder;
Expand All @@ -1305,7 +1328,7 @@ static int av7110_register(struct av7110 *av7110)
dvb_dmx_init(&av7110->demux);
av7110->demux.dmx.get_stc = dvb_get_stc;

av7110->dmxdev.filternum = 32;
av7110->dmxdev.filternum = (av7110->full_ts) ? 256 : 32;
av7110->dmxdev.demux = &dvbdemux->dmx;
av7110->dmxdev.capabilities = 0;

Expand Down Expand Up @@ -1422,7 +1445,6 @@ int i2c_writereg(struct av7110 *av7110, u8 id, u8 reg, u8 val)
return i2c_transfer(&av7110->i2c_adap, &msgs, 1);
}

#if 0
u8 i2c_readreg(struct av7110 *av7110, u8 id, u8 reg)
{
u8 mm1[] = {0x00};
Expand All @@ -1439,7 +1461,6 @@ u8 i2c_readreg(struct av7110 *av7110, u8 id, u8 reg)

return mm2[0];
}
#endif

/****************************************************************************
* INITIALIZATION
Expand Down Expand Up @@ -2484,7 +2505,47 @@ static int __devinit av7110_attach(struct saa7146_dev* dev,
av7110->dvb_adapter.proposed_mac);
ret = -ENOMEM;

if (budgetpatch) {
/* full-ts mod? */
if (full_ts)
av7110->full_ts = true;

/* check for full-ts flag in eeprom */
if (i2c_readreg(av7110, 0xaa, 0) == 0x4f && i2c_readreg(av7110, 0xaa, 1) == 0x45) {
u8 flags = i2c_readreg(av7110, 0xaa, 2);
if (flags != 0xff && (flags & 0x01))
av7110->full_ts = true;
}

if (av7110->full_ts) {
printk(KERN_INFO "dvb-ttpci: full-ts mode enabled for saa7146 port B\n");
spin_lock_init(&av7110->feedlock1);
av7110->grabbing = saa7146_vmalloc_build_pgtable(pdev, length,
&av7110->pt);
if (!av7110->grabbing)
goto err_i2c_del_3;

saa7146_write(dev, DD1_STREAM_B, 0x00000000);
saa7146_write(dev, MC2, (MASK_10 | MASK_26));

saa7146_write(dev, DD1_INIT, 0x00000600);
saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));

saa7146_write(dev, BRS_CTRL, 0x60000000);
saa7146_write(dev, MC2, MASK_08 | MASK_24);

/* dma3 */
saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
saa7146_write(dev, BASE_ODD3, 0);
saa7146_write(dev, BASE_EVEN3, 0);
saa7146_write(dev, PROT_ADDR3, TS_WIDTH * TS_HEIGHT);
saa7146_write(dev, PITCH3, TS_WIDTH);
saa7146_write(dev, BASE_PAGE3, av7110->pt.dma | ME1 | 0x90);
saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT << 16) | TS_WIDTH);
saa7146_write(dev, MC2, MASK_04 | MASK_20);

tasklet_init(&av7110->vpe_tasklet, vpeirq, (unsigned long) av7110);

} else if (budgetpatch) {
spin_lock_init(&av7110->feedlock1);
av7110->grabbing = saa7146_vmalloc_build_pgtable(pdev, length,
&av7110->pt);
Expand Down Expand Up @@ -2710,11 +2771,13 @@ static int __devexit av7110_detach(struct saa7146_dev* saa)
#if defined(CONFIG_INPUT_EVDEV) || defined(CONFIG_INPUT_EVDEV_MODULE)
av7110_ir_exit(av7110);
#endif
if (budgetpatch) {
/* Disable RPS1 */
saa7146_write(saa, MC1, MASK_29);
/* VSYNC LOW (inactive) */
saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);
if (budgetpatch || av7110->full_ts) {
if (budgetpatch) {
/* Disable RPS1 */
saa7146_write(saa, MC1, MASK_29);
/* VSYNC LOW (inactive) */
saa7146_setgpio(saa, 3, SAA7146_GPIO_OUTLO);
}
saa7146_write(saa, MC1, MASK_20); /* DMA3 off */
SAA7146_IER_DISABLE(saa, MASK_10);
SAA7146_ISR_CLEAR(saa, MASK_10);
Expand Down Expand Up @@ -2794,7 +2857,7 @@ static void av7110_irq(struct saa7146_dev* dev, u32 *isr)
tasklet_schedule(&av7110->gpio_tasklet);
}

if ((*isr & MASK_10) && budgetpatch)
if (*isr & MASK_10)
tasklet_schedule(&av7110->vpe_tasklet);
}

Expand Down
1 change: 1 addition & 0 deletions drivers/media/dvb/ttpci/av7110.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -192,6 +192,7 @@ struct av7110 {
unsigned char *grabbing;
struct saa7146_pgtable pt;
struct tasklet_struct vpe_tasklet;
bool full_ts;

int fe_synced;
struct mutex pid_mutex;
Expand Down
3 changes: 3 additions & 0 deletions drivers/media/dvb/ttpci/av7110_av.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -788,6 +788,9 @@ int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t l

dprintk(2, "av7110:%p, \n", av7110);

if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
return 0;

switch (feed->pes_type) {
case 0:
if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
Expand Down

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