[DVB patch 19/51] Twinhan DST: frontend fixes

From: Johannes Stezenbach
Date: Mon Jun 27 2005 - 07:36:38 EST

From: Manu Abraham <manu@xxxxxxxxxxx>

o Make the inversion setting specific, ie, only for the 200103A DVB-S
This should not be flagged on other cards.
o Make the frequency setting card specific
o Make the bandwidth setting generic such that it supports more DVB-T cards
o Set QAM size for DVB-C cards that do not autodetect QAM size
o Fix a bug that caused the polarization not to be set.
Set polarization for cards that do not autodetect polarization
o Fix a bogus frontend signal lock, that caused a tuning delay as well.
o Make the Symbolrate setting card specific

Signed-off-by: Manu Abraham <manu@xxxxxxxxxxx>
Signed-off-by: Johannes Stezenbach <js@xxxxxxxxxxx>

drivers/media/dvb/bt8xx/dst.c | 227 ++++++++++++++--------
drivers/media/dvb/bt8xx/dst_ca.c | 349 ++++++++++++-----------------------
drivers/media/dvb/bt8xx/dst_common.h | 3
3 files changed, 272 insertions(+), 307 deletions(-)

Index: linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst.c
===================================================================
--- linux-2.6.12-git8.orig/drivers/media/dvb/bt8xx/dst.c 2005-06-17 21:48:29.000000000 +0200
+++ linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst.c 2005-06-27 13:24:12.000000000 +0200
@@ -258,10 +258,10 @@ int write_dst(struct dst_state *state, u
if (debug && (verbose > 4)) {
u8 i;
if (verbose > 4) {
- dprintk("%s writing", __FUNCTION__);
+ dprintk("%s writing [ ", __FUNCTION__);
for (i = 0; i < len; i++)
- dprintk(" %02x", data[i]);
- dprintk("\n");
+ dprintk("%02x ", data[i]);
+ dprintk("]\n");
}
}
for (cnt = 0; cnt < 2; cnt++) {
@@ -320,10 +320,29 @@ int read_dst(struct dst_state *state, u8
}
EXPORT_SYMBOL(read_dst);

-static int dst_set_freq(struct dst_state *state, u32 freq)
+static int dst_set_polarization(struct dst_state *state)
{
- u8 *val;
+ switch (state->voltage) {
+ case SEC_VOLTAGE_13: // vertical
+ printk("%s: Polarization=[Vertical]\n", __FUNCTION__);
+ state->tx_tuna[8] |= 0x40; //1
+ break;
+
+ case SEC_VOLTAGE_18: // horizontal
+ printk("%s: Polarization=[Horizontal]\n", __FUNCTION__);
+ state->tx_tuna[8] =~ 0x40; // 0
+ break;

+ case SEC_VOLTAGE_OFF:
+
+ break;
+ }
+
+ return 0;
+}
+
+static int dst_set_freq(struct dst_state *state, u32 freq)
+{
state->frequency = freq;
if (debug > 4)
dprintk("%s: set Frequency %u\n", __FUNCTION__, freq);
@@ -332,46 +351,30 @@ static int dst_set_freq(struct dst_state
freq = freq / 1000;
if (freq < 950 || freq > 2150)
return -EINVAL;
- val = &state->tx_tuna[0];
- val[2] = (freq >> 8) & 0x7f;
- val[3] = (u8) freq;
- val[4] = 1;
- val[8] &= ~4;
- if (freq < 1531)
- val[8] |= 4;
+
+ state->tx_tuna[2] = (freq >> 8);
+ state->tx_tuna[3] = (u8) freq;
+ state->tx_tuna[4] = 0x01;
+ state->tx_tuna[8] &= ~0x04;
+ if (state->type_flags & DST_TYPE_HAS_OBS_REGS) {
+ if (freq < 1531)
+ state->tx_tuna[8] |= 0x04;
+ }
+
} else if (state->dst_type == DST_TYPE_IS_TERR) {
freq = freq / 1000;
if (freq < 137000 || freq > 858000)
return -EINVAL;
- val = &state->tx_tuna[0];
- val[2] = (freq >> 16) & 0xff;
- val[3] = (freq >> 8) & 0xff;
- val[4] = (u8) freq;
- val[5] = 0;
- switch (state->bandwidth) {
- case BANDWIDTH_6_MHZ:
- val[6] = 6;
- break;
-
- case BANDWIDTH_7_MHZ:
- case BANDWIDTH_AUTO:
- val[6] = 7;
- break;

- case BANDWIDTH_8_MHZ:
- val[6] = 8;
- break;
- }
+ state->tx_tuna[2] = (freq >> 16) & 0xff;
+ state->tx_tuna[3] = (freq >> 8) & 0xff;
+ state->tx_tuna[4] = (u8) freq;

- val[7] = 0;
- val[8] = 0;
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
- /* guess till will get one */
- freq = freq / 1000;
- val = &state->tx_tuna[0];
- val[2] = (freq >> 16) & 0xff;
- val[3] = (freq >> 8) & 0xff;
- val[4] = (u8) freq;
+ state->tx_tuna[2] = (freq >> 16) & 0xff;
+ state->tx_tuna[3] = (freq >> 8) & 0xff;
+ state->tx_tuna[4] = (u8) freq;
+
} else
return -EINVAL;
return 0;
@@ -379,51 +382,58 @@ static int dst_set_freq(struct dst_state

static int dst_set_bandwidth(struct dst_state* state, fe_bandwidth_t bandwidth)
{
- u8 *val;
-
state->bandwidth = bandwidth;

if (state->dst_type != DST_TYPE_IS_TERR)
return 0;

- val = &state->tx_tuna[0];
switch (bandwidth) {
- case BANDWIDTH_6_MHZ:
- val[6] = 6;
- break;
+ case BANDWIDTH_6_MHZ:
+ if (state->dst_hw_cap & DST_TYPE_HAS_CA)
+ state->tx_tuna[7] = 0x06;
+ else {
+ state->tx_tuna[6] = 0x06;
+ state->tx_tuna[7] = 0x00;
+ }
+ break;

- case BANDWIDTH_7_MHZ:
- val[6] = 7;
- break;
+ case BANDWIDTH_7_MHZ:
+ if (state->dst_hw_cap & DST_TYPE_HAS_CA)
+ state->tx_tuna[7] = 0x07;
+ else {
+ state->tx_tuna[6] = 0x07;
+ state->tx_tuna[7] = 0x00;
+ }
+ break;

- case BANDWIDTH_8_MHZ:
- val[6] = 8;
- break;
+ case BANDWIDTH_8_MHZ:
+ if (state->dst_hw_cap & DST_TYPE_HAS_CA)
+ state->tx_tuna[7] = 0x08;
+ else {
+ state->tx_tuna[6] = 0x08;
+ state->tx_tuna[7] = 0x00;
+ }
+ break;

- default:
- return -EINVAL;
+ default:
+ return -EINVAL;
}
return 0;
}

static int dst_set_inversion(struct dst_state* state, fe_spectral_inversion_t inversion)
{
- u8 *val;
-
state->inversion = inversion;
-
- val = &state->tx_tuna[0];
-
- val[8] &= ~0x80;
-
switch (inversion) {
- case INVERSION_OFF:
- break;
- case INVERSION_ON:
- val[8] |= 0x80;
- break;
- default:
- return -EINVAL;
+ case INVERSION_OFF: // Inversion = Normal
+ state->tx_tuna[8] &= ~0x80;
+ break;
+
+ case INVERSION_ON:
+ state->tx_tuna[8] |= 0x80;
+ break;
+ default:
+ return -EINVAL;
}
return 0;
}
@@ -478,6 +488,52 @@ static int dst_set_symbolrate(struct dst
return 0;
}

+
+static int dst_set_modulation(struct dst_state *state, fe_modulation_t modulation)
+{
+ if (state->dst_type != DST_TYPE_IS_CABLE)
+ return 0;
+
+ state->modulation = modulation;
+ switch (modulation) {
+ case QAM_16:
+ state->tx_tuna[8] = 0x10;
+ break;
+
+ case QAM_32:
+ state->tx_tuna[8] = 0x20;
+ break;
+
+ case QAM_64:
+ state->tx_tuna[8] = 0x40;
+ break;
+
+ case QAM_128:
+ state->tx_tuna[8] = 0x80;
+ break;
+
+ case QAM_256:
+ state->tx_tuna[8] = 0x00;
+ break;
+
+ case QPSK:
+ case QAM_AUTO:
+ case VSB_8:
+ case VSB_16:
+ default:
+ return -EINVAL;
+
+ }
+
+ return 0;
+}
+
+static fe_modulation_t dst_get_modulation(struct dst_state *state)
+{
+ return state->modulation;
+}
+
+
u8 dst_check_sum(u8 * buf, u32 len)
{
u32 i;
@@ -577,7 +633,7 @@ struct dst_types dst_tlist[] = {
.device_id = "200103A",
.offset = 0,
.dst_type = DST_TYPE_IS_SAT,
- .type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1,
+ .type_flags = DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_FW_1 | DST_TYPE_HAS_OBS_REGS,
.dst_feature = 0
}, /* obsolete */

@@ -626,7 +682,7 @@ struct dst_types dst_tlist[] = {
.device_id = "DSTMCI",
.offset = 1,
.dst_type = DST_TYPE_IS_SAT,
- .type_flags = DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_FW_BUILD,
+ .type_flags = DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_FW_2 | DST_TYPE_HAS_FW_BUILD | DST_TYPE_HAS_INC_COUNT,
.dst_feature = DST_TYPE_HAS_CA | DST_TYPE_HAS_DISEQC3 | DST_TYPE_HAS_DISEQC4
| DST_TYPE_HAS_MOTO | DST_TYPE_HAS_MAC
},
@@ -872,7 +928,7 @@ static int dst_get_signal(struct dst_sta
{
int retval;
u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
-
+ printk("%s: Getting Signal strength and other parameters !!!!!!!!\n", __FUNCTION__);
if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
state->decode_lock = state->decode_strength = state->decode_snr = 0;
return 0;
@@ -954,15 +1010,8 @@ static int dst_get_tuna(struct dst_state
state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];

state->decode_lock = 1;
- /*
- dst->decode_n1 = (dst->rx_tuna[4] << 8) +
- (dst->rx_tuna[5]);
-
- dst->decode_n2 = (dst->rx_tuna[8] << 8) +
- (dst->rx_tuna[7]);
- */
state->diseq_flags |= HAS_LOCK;
- /* dst->cur_jiff = jiffies; */
+
return 1;
}

@@ -1145,7 +1194,8 @@ static int dst_init(struct dvb_frontend*
static u8 ini_tvci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
static u8 ini_cabfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
static u8 ini_cabci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
- state->inversion = INVERSION_ON;
+// state->inversion = INVERSION_ON;
+ state->inversion = INVERSION_OFF;
state->voltage = SEC_VOLTAGE_13;
state->tone = SEC_TONE_OFF;
state->symbol_rate = 29473000;
@@ -1174,7 +1224,7 @@ static int dst_read_status(struct dvb_fr

*status = 0;
if (state->diseq_flags & HAS_LOCK) {
- dst_get_signal(state);
+// dst_get_signal(state); // don't require(?) to ask MCU
if (state->decode_lock)
*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
}
@@ -1208,20 +1258,25 @@ static int dst_set_frontend(struct dvb_f

dst_set_freq(state, p->frequency);
if (verbose > 4)
- dprintk("Set Frequency = [%d]\n", p->frequency);
+ dprintk("Set Frequency=[%d]\n", p->frequency);

- dst_set_inversion(state, p->inversion);
+// dst_set_inversion(state, p->inversion);
if (state->dst_type == DST_TYPE_IS_SAT) {
+ if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
+ dst_set_inversion(state, p->inversion);
+
dst_set_fec(state, p->u.qpsk.fec_inner);
dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
+ dst_set_polarization(state);
if (verbose > 4)
- dprintk("Set Symbolrate = [%d]\n", p->u.qpsk.symbol_rate);
+ dprintk("Set Symbolrate=[%d]\n", p->u.qpsk.symbol_rate);

} else if (state->dst_type == DST_TYPE_IS_TERR) {
dst_set_bandwidth(state, p->u.ofdm.bandwidth);
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
dst_set_fec(state, p->u.qam.fec_inner);
dst_set_symbolrate(state, p->u.qam.symbol_rate);
+ dst_set_modulation(state, p->u.qam.modulation);
}
dst_write_tuna(fe);

@@ -1233,8 +1288,11 @@ static int dst_get_frontend(struct dvb_f
struct dst_state* state = fe->demodulator_priv;

p->frequency = state->decode_freq;
- p->inversion = state->inversion;
+// p->inversion = state->inversion;
if (state->dst_type == DST_TYPE_IS_SAT) {
+ if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
+ p->inversion = state->inversion;
+
p->u.qpsk.symbol_rate = state->symbol_rate;
p->u.qpsk.fec_inner = dst_get_fec(state);
} else if (state->dst_type == DST_TYPE_IS_TERR) {
@@ -1242,7 +1300,8 @@ static int dst_get_frontend(struct dvb_f
} else if (state->dst_type == DST_TYPE_IS_CABLE) {
p->u.qam.symbol_rate = state->symbol_rate;
p->u.qam.fec_inner = dst_get_fec(state);
- p->u.qam.modulation = QAM_AUTO;
+// p->u.qam.modulation = QAM_AUTO;
+ p->u.qam.modulation = dst_get_modulation(state);
}

return 0;
Index: linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst_common.h
===================================================================
--- linux-2.6.12-git8.orig/drivers/media/dvb/bt8xx/dst_common.h 2005-06-17 21:48:29.000000000 +0200
+++ linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst_common.h 2005-06-27 13:24:12.000000000 +0200
@@ -47,6 +47,8 @@
#define DST_TYPE_HAS_FW_2 16
#define DST_TYPE_HAS_FW_3 32
#define DST_TYPE_HAS_FW_BUILD 64
+#define DST_TYPE_HAS_OBS_REGS 128
+#define DST_TYPE_HAS_INC_COUNT 256

/* Card capability list */

@@ -110,6 +112,7 @@ struct dst_state {
u32 dst_hw_cap;
u8 dst_fw_version;
fe_sec_mini_cmd_t minicmd;
+ fe_modulation_t modulation;
u8 messages[256];
};

Index: linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst_ca.c
===================================================================
--- linux-2.6.12-git8.orig/drivers/media/dvb/bt8xx/dst_ca.c 2005-06-17 21:48:29.000000000 +0200
+++ linux-2.6.12-git8/drivers/media/dvb/bt8xx/dst_ca.c 2005-06-27 13:24:12.000000000 +0200
@@ -32,7 +32,7 @@
#include "dst_ca.h"
#include "dst_common.h"

-static unsigned int verbose = 1;
+static unsigned int verbose = 5;
module_param(verbose, int, 0644);
MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");

@@ -295,34 +295,28 @@ static int ca_get_message(struct dst_sta
return 0;
}

-static int handle_en50221_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
+static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
{
if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
}
else {
+ hw_buffer->msg[0] = (length & 0xff) + 7;
+ hw_buffer->msg[1] = 0x40;
hw_buffer->msg[2] = 0x03;
hw_buffer->msg[3] = 0x00;
+ hw_buffer->msg[4] = 0x03;
+ hw_buffer->msg[5] = length & 0xff;
+ hw_buffer->msg[6] = 0x00;
}
return 0;
}

-static int debug_8820_buffer(struct ca_msg *hw_buffer)
-{
- unsigned int i;
-
- dprintk("%s:Debug=[", __FUNCTION__);
- for (i = 0; i < (hw_buffer->msg[0] + 1); i++)
- dprintk(" %02x", hw_buffer->msg[i]);
- dprintk("]\n");

- return 0;
-}
-
-static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 reply)
+static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
{
- if ((dst_put_ci(state, hw_buffer->msg, (hw_buffer->length + 1), hw_buffer->msg, reply)) < 0) {
+ if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
dprintk("%s: DST-CI Command failed.\n", __FUNCTION__);
dprintk("%s: Resetting DST.\n", __FUNCTION__);
rdc_reset_state(state);
@@ -334,234 +328,141 @@ static int write_to_8820(struct dst_stat
return 0;
}

-
-static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
+u32 asn_1_decode(u8 *asn_1_array)
{
- u32 hw_offset, buf_offset, i, k;
- u32 program_info_length = 0, es_info_length = 0, length = 0, words = 0;
- u8 found_prog_ca_desc = 0, found_stream_ca_desc = 0, error_condition = 0, hw_buffer_length = 0;
-
- if (verbose > 3)
- dprintk("%s, p_ca_message length %d (0x%x)\n", __FUNCTION__,p_ca_message->length,p_ca_message->length );
-
- handle_en50221_tag(state, p_ca_message, hw_buffer); /* EN50221 tag */
+ u8 length_field = 0, word_count = 0, count = 0;
+ u32 length = 0;

- /* Handle the length field (variable) */
- if (!(p_ca_message->msg[3] & 0x80)) { /* Length = 1 */
- length = p_ca_message->msg[3] & 0x7f;
- words = 0; /* domi's suggestion */
- }
- else { /* Length = words */
- words = p_ca_message->msg[3] & 0x7f;
- for (i = 0; i < words; i++) {
- length = length << 8;
- length = length | p_ca_message->msg[4 + i];
+ length_field = asn_1_array[0];
+ dprintk("%s: Length field=[%02x]\n", __FUNCTION__, length_field);
+ if (length_field < 0x80) {
+ length = length_field & 0x7f;
+ dprintk("%s: Length=[%02x]\n", __FUNCTION__, length);
+ } else {
+ word_count = length_field & 0x7f;
+ for (count = 0; count < word_count; count++) {
+ length = (length | asn_1_array[count + 1]) << 8;
+ dprintk("%s: Length=[%04x]\n", __FUNCTION__, length);
}
}
- if (verbose > 4) {
- dprintk("%s:Length=[%d (0x%x)], Words=[%d]\n", __FUNCTION__, length,length, words);
+ return length;
+}

- /* Debug Input string */
- for (i = 0; i < length; i++)
- dprintk(" %02x", p_ca_message->msg[i]);
- dprintk("]\n");
- }
+static int init_buffer(u8 *buffer, u32 length)
+{
+ u32 i;
+ for (i = 0; i < length; i++)
+ buffer[i] = 0;

- hw_offset = 7;
- buf_offset = words + 4;
+ return 0;
+}

- /* Program Header */
- if (verbose > 4)
- dprintk("\n%s:Program Header=[", __FUNCTION__);
- for (i = 0; i < 6; i++) {
- hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
- if (verbose > 4)
- dprintk(" %02x", p_ca_message->msg[buf_offset]);
- hw_offset++, buf_offset++, hw_buffer_length++;
- }
- if (verbose > 4)
- dprintk("]\n");
+static int debug_string(u8 *msg, u32 length, u32 offset)
+{
+ u32 i;

- program_info_length = 0;
- program_info_length = (((program_info_length | p_ca_message->msg[words + 8]) & 0x0f) << 8) | p_ca_message->msg[words + 9];
- if (verbose > 4)
- dprintk("%s:Program info Length=[%d][%02x], hw_offset=[%d], buf_offset=[%d] \n",
- __FUNCTION__, program_info_length, program_info_length, hw_offset, buf_offset);
+ dprintk(" String=[ ");
+ for (i = offset; i < length; i++)
+ dprintk("%02x ", msg[i]);
+ dprintk("]\n");

- if (program_info_length && (program_info_length < 256)) { /* If program_info_length */
- hw_buffer->msg[11] = hw_buffer->msg[11] & 0x0f; /* req only 4 bits */
- hw_buffer->msg[12] = hw_buffer->msg[12] + 1; /* increment! ASIC bug! */
-
- if (p_ca_message->msg[buf_offset + 1] == 0x09) { /* Check CA descriptor */
- found_prog_ca_desc = 1;
- if (verbose > 4)
- dprintk("%s: Found CA descriptor @ Program level\n", __FUNCTION__);
- }
-
- if (found_prog_ca_desc) { /* Command only if CA descriptor */
- hw_buffer->msg[13] = p_ca_message->msg[buf_offset]; /* CA PMT command ID */
- hw_offset++, buf_offset++, hw_buffer_length++;
- }
-
- /* Program descriptors */
- if (verbose > 4) {
- dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
- dprintk("%s:Program descriptors=[", __FUNCTION__);
- }
- while (program_info_length && !error_condition) { /* Copy prog descriptors */
- if (program_info_length > p_ca_message->length) { /* Error situation */
- dprintk ("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d]\n",
- __FUNCTION__, __LINE__, program_info_length);
- dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
- error_condition = 1;
- break;
- }
+ return 0;
+}

- hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
- dprintk(" %02x", p_ca_message->msg[buf_offset]);
- hw_offset++, buf_offset++, hw_buffer_length++, program_info_length--;
- }
- if (verbose > 4) {
- dprintk("]\n");
- dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
- }
- if (found_prog_ca_desc) {
- if (!reply) {
- hw_buffer->msg[13] = 0x01; /* OK descrambling */
- if (verbose > 1)
- dprintk("CA PMT Command = OK Descrambling\n");
- }
- else {
- hw_buffer->msg[13] = 0x02; /* Ok MMI */
- if (verbose > 1)
- dprintk("CA PMT Command = Ok MMI\n");
- }
- if (query) {
- hw_buffer->msg[13] = 0x03; /* Query */
- if (verbose > 1)
- dprintk("CA PMT Command = CA PMT query\n");
- }
- }
- }
- else {
- hw_buffer->msg[11] = hw_buffer->msg[11] & 0xf0; /* Don't write to ASIC */
- hw_buffer->msg[12] = hw_buffer->msg[12] = 0x00;
+static int copy_string(u8 *destination, u8 *source, u32 dest_offset, u32 source_offset, u32 length)
+{
+ u32 i;
+ dprintk("%s: Copying [", __FUNCTION__);
+ for (i = 0; i < length; i++) {
+ destination[i + dest_offset] = source[i + source_offset];
+ dprintk(" %02x", source[i + source_offset]);
}
- if (verbose > 4)
- dprintk("%s:**********>p_ca_message->length=[%d], buf_offset=[%d], hw_offset=[%d]\n",
- __FUNCTION__, p_ca_message->length, buf_offset, hw_offset);
-
- while ((buf_offset < p_ca_message->length) && !error_condition) {
- /* Bail out in case of an indefinite loop */
- if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
- dprintk("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d], buf_offset=[%d]\n",
- __FUNCTION__, __LINE__, program_info_length, buf_offset);
-
- dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
- error_condition = 1;
- break;
- }
-
- /* Stream Header */
-
- for (k = 0; k < 5; k++) {
- hw_buffer->msg[hw_offset + k] = p_ca_message->msg[buf_offset + k];
- }
-
- es_info_length = 0;
- es_info_length = (es_info_length | (p_ca_message->msg[buf_offset + 3] & 0x0f)) << 8 | p_ca_message->msg[buf_offset + 4];
-
- if (verbose > 4) {
- dprintk("\n%s:----->Stream header=[%02x %02x %02x %02x %02x]\n", __FUNCTION__,
- p_ca_message->msg[buf_offset + 0], p_ca_message->msg[buf_offset + 1],
- p_ca_message->msg[buf_offset + 2], p_ca_message->msg[buf_offset + 3],
- p_ca_message->msg[buf_offset + 4]);
-
- dprintk("%s:----->Stream type=[%02x], es length=[%d (0x%x)], Chars=[%02x] [%02x], buf_offset=[%d]\n", __FUNCTION__,
- p_ca_message->msg[buf_offset + 0], es_info_length, es_info_length,
- p_ca_message->msg[buf_offset + 3], p_ca_message->msg[buf_offset + 4], buf_offset);
- }
-
- hw_buffer->msg[hw_offset + 3] &= 0x0f; /* req only 4 bits */
+ dprintk("]\n");

- if (found_prog_ca_desc) {
- hw_buffer->msg[hw_offset + 3] = 0x00;
- hw_buffer->msg[hw_offset + 4] = 0x00;
- }
+ return i;
+}

- hw_offset += 5, buf_offset += 5, hw_buffer_length += 5;
+static int modify_4_bits(u8 *message, u32 pos)
+{
+ message[pos] &= 0x0f;

- /* Check for CA descriptor */
- if (p_ca_message->msg[buf_offset + 1] == 0x09) {
- if (verbose > 4)
- dprintk("%s:Found CA descriptor @ Stream level\n", __FUNCTION__);
- found_stream_ca_desc = 1;
- }
+ return 0;
+}

- /* ES descriptors */

- if (es_info_length && !error_condition && !found_prog_ca_desc && found_stream_ca_desc) {
-// if (!ca_pmt_done) {
- hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; /* CA PMT cmd(es) */
- if (verbose > 4)
- printk("%s:----->CA PMT Command ID=[%02x]\n", __FUNCTION__, p_ca_message->msg[buf_offset]);
-// hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--, ca_pmt_done = 1;
- hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
-// }
- if (verbose > 4)
- dprintk("%s:----->ES descriptors=[", __FUNCTION__);

- while (es_info_length && !error_condition) { /* ES descriptors */
- if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
- if (verbose > 4) {
- dprintk("%s:\"WARNING\" ES Length error, line=[%d], es_info_length=[%d], buf_offset=[%d]\n",
- __FUNCTION__, __LINE__, es_info_length, buf_offset);
+static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
+{
+ u32 length = 0, count = 0;
+ u8 asn_1_words, program_header_length;
+ u16 program_info_length = 0, es_info_length = 0;
+ u32 hw_offset = 0, buf_offset = 0, i;
+ u8 dst_tag_length;
+
+ length = asn_1_decode(&p_ca_message->msg[3]);
+ dprintk("%s: CA Message length=[%d]\n", __FUNCTION__, length);
+ dprintk("%s: ASN.1 ", __FUNCTION__);
+ debug_string(&p_ca_message->msg[4], length, 0); // length does not include tag and length

- dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
- }
- error_condition = 1;
- break;
- }
+ init_buffer(hw_buffer->msg, length);
+ handle_dst_tag(state, p_ca_message, hw_buffer, length);

- hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
- if (verbose > 3)
- dprintk("%02x ", hw_buffer->msg[hw_offset]);
- hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
- }
- found_stream_ca_desc = 0; /* unset for new streams */
- dprintk("]\n");
+ hw_offset = 7;
+ asn_1_words = 1; // just a hack to test, should compute this one
+ buf_offset = 3;
+ program_header_length = 6;
+ dst_tag_length = 7;
+
+// debug_twinhan_ca_params(state, p_ca_message, hw_buffer, reply, query, length, hw_offset, buf_offset);
+// dprintk("%s: Program Header(BUF)", __FUNCTION__);
+// debug_string(&p_ca_message->msg[4], program_header_length, 0);
+// dprintk("%s: Copying Program header\n", __FUNCTION__);
+ copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, (buf_offset + asn_1_words), program_header_length);
+ buf_offset += program_header_length, hw_offset += program_header_length;
+ modify_4_bits(hw_buffer->msg, (hw_offset - 2));
+ if (state->type_flags & DST_TYPE_HAS_INC_COUNT) { // workaround
+ dprintk("%s: Probably an ASIC bug !!!\n", __FUNCTION__);
+ debug_string(hw_buffer->msg, (hw_offset + program_header_length), 0);
+ hw_buffer->msg[hw_offset - 1] += 1;
+ }
+
+// dprintk("%s: Program Header(HW), Count=[%d]", __FUNCTION__, count);
+// debug_string(hw_buffer->msg, hw_offset, 0);
+
+ program_info_length = ((program_info_length | (p_ca_message->msg[buf_offset - 1] & 0x0f)) << 8) | p_ca_message->msg[buf_offset];
+ dprintk("%s: Program info length=[%02x]\n", __FUNCTION__, program_info_length);
+ if (program_info_length) {
+ count = copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, (buf_offset + 1), (program_info_length + 1) ); // copy next elem, not current
+ buf_offset += count, hw_offset += count;
+// dprintk("%s: Program level ", __FUNCTION__);
+// debug_string(hw_buffer->msg, hw_offset, 0);
+ }
+
+ buf_offset += 1;// hw_offset += 1;
+ for (i = buf_offset; i < length; i++) {
+// dprintk("%s: Stream Header ", __FUNCTION__);
+ count = copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, buf_offset, 5);
+ modify_4_bits(hw_buffer->msg, (hw_offset + 3));
+
+ hw_offset += 5, buf_offset += 5, i += 4;
+// debug_string(hw_buffer->msg, hw_offset, (hw_offset - 5));
+ es_info_length = ((es_info_length | (p_ca_message->msg[buf_offset - 1] & 0x0f)) << 8) | p_ca_message->msg[buf_offset];
+ dprintk("%s: ES info length=[%02x]\n", __FUNCTION__, es_info_length);
+ if (es_info_length) {
+ // copy descriptors @ STREAM level
+ dprintk("%s: Descriptors @ STREAM level...!!! \n", __FUNCTION__);
}
- }
-
- /* MCU Magic words */
-
- hw_buffer_length += 7;
- hw_buffer->msg[0] = hw_buffer_length;
- hw_buffer->msg[1] = 64;
- hw_buffer->msg[4] = 3;
- hw_buffer->msg[5] = hw_buffer->msg[0] - 7;
- hw_buffer->msg[6] = 0;
-

- /* Fix length */
- hw_buffer->length = hw_buffer->msg[0];
-
- put_checksum(&hw_buffer->msg[0], hw_buffer->msg[0]);
- /* Do the actual write */
- if (verbose > 4) {
- dprintk("%s:======================DEBUGGING================================\n", __FUNCTION__);
- dprintk("%s: Actual Length=[%d]\n", __FUNCTION__, hw_buffer_length);
}
- /* Only for debugging! */
- if (verbose > 2)
- debug_8820_buffer(hw_buffer);
- if (verbose > 3)
- dprintk("%s: Reply = [%d]\n", __FUNCTION__, reply);
- write_to_8820(state, hw_buffer, reply);
+ hw_buffer->msg[length + dst_tag_length] = dst_check_sum(hw_buffer->msg, (length + dst_tag_length));
+// dprintk("%s: Total length=[%d], Checksum=[%02x]\n", __FUNCTION__, (length + dst_tag_length), hw_buffer->msg[length + dst_tag_length]);
+ debug_string(hw_buffer->msg, (length + dst_tag_length + 1), 0); // dst tags also
+ write_to_8820(state, hw_buffer, (length + dst_tag_length + 1), reply); // checksum

return 0;
}

+
/* Board supports CA PMT reply ? */
static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
{
@@ -605,7 +506,7 @@ static int ca_send_message(struct dst_st
struct ca_msg *hw_buffer;

if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
- printk("%s: Memory allocation failure\n", __FUNCTION__);
+ dprintk("%s: Memory allocation failure\n", __FUNCTION__);
return -ENOMEM;
}
if (verbose > 3)
@@ -630,8 +531,10 @@ static int ca_send_message(struct dst_st
switch (command) {
case CA_PMT:
if (verbose > 3)
+// dprintk("Command = SEND_CA_PMT\n");
dprintk("Command = SEND_CA_PMT\n");
- if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
+// if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
+ if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
dprintk("%s: -->CA_PMT Failed !\n", __FUNCTION__);
return -1;
}
@@ -664,7 +567,7 @@ static int ca_send_message(struct dst_st
return -1;
}
if (verbose > 3)
- printk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);
+ dprintk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);

break;
}
@@ -681,17 +584,17 @@ static int dst_ca_ioctl(struct inode *in
struct ca_msg *p_ca_message;

if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
- printk("%s: Memory allocation failure\n", __FUNCTION__);
+ dprintk("%s: Memory allocation failure\n", __FUNCTION__);
return -ENOMEM;
}

if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
- printk("%s: Memory allocation failure\n", __FUNCTION__);
+ dprintk("%s: Memory allocation failure\n", __FUNCTION__);
return -ENOMEM;
}

if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
- printk("%s: Memory allocation failure\n", __FUNCTION__);
+ dprintk("%s: Memory allocation failure\n", __FUNCTION__);
return -ENOMEM;
}


--

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