parse_em28xx_drxk.pl: Add an option to preserve timestamps

It may be useful, when needing to analyze the amount of time that
passed between some events.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/contrib/em28xx/parse_em28xx_drxk.pl b/contrib/em28xx/parse_em28xx_drxk.pl
index e7085eb..fdecba8 100755 (executable)
--- a/contrib/em28xx/parse_em28xx_drxk.pl
+++ b/contrib/em28xx/parse_em28xx_drxk.pl
@@ -36,12 +36,14 @@ my $show_em28xx = 0;
 my $show_other_xfer = 0;
 my $show_ac97 = 0;
 my $show_other_lines = 0;      # Useful on some cases
+my $show_timestamp = 0;
 
 GetOptions(
        'show_em28xx' => \$show_em28xx,
        'show_other_xfer' => \$show_other_xfer,
        'show_ac97' => \$show_ac97,
        'show_other_lines' => \$show_other_lines,
+       'show_timestamp' => \$show_timestamp,
 ) or die "Invalid arguments.\nUse $0 [--show_em28xx] [--show_other_xfer] [--show_ac97] [--show_other_lines]\n";
 
 
@@ -162,13 +164,16 @@ my %ac97_map = (
 
 my ($r40, $r42, $r43, $dir);
 
-sub output_ac97()
+sub output_ac97($)
 {
+       my $timestamp = shift;
+
        if (hex($r42) < 0x80) {
                if ($dir < 0) {
                        return;
                }
                $r42 = $ac97_map{$r42} if defined($ac97_map{$r42});
+               printf "$timestamp " if ($timestamp);
                printf "em28xx_write_ac97(dev, %s, %s);\n",$r42, $r40;
                $r43 = 0;
 
@@ -180,6 +185,7 @@ sub output_ac97()
        }
        $r42 = sprintf("0x%02x", hex($r42) - 0x80);
        $r42 = $ac97_map{$r42} if defined($ac97_map{$r42});
+       printf "$timestamp " if ($timestamp);
        printf "em28xx_read_ac97(dev, %s);\t/* read 0x%s */\n",$r42, $r40;
        $r43 = 0;
 }
@@ -2078,8 +2084,10 @@ my %drxk_map = (
 
 my $old_flags = -1;
 my $old_reg;
-sub parse_drxk_addr($$$$)
+my $old_timestamp;
+sub parse_drxk_addr($$$$$)
 {
+       my $timestamp = shift;
        my $addr = shift;
        my $n = shift;
        my $app_data = shift;
@@ -2130,9 +2138,13 @@ sub parse_drxk_addr($$$$)
 
                $old_flags = $flags;
                $old_reg = $reg;
+               $old_timestamp = $timestamp;
                return;
        }
 
+# Hack: may be useful for firmware dumps
+#goto parse_block if ($n > 1);
+
        goto parse_block if ($n > 4 || $n == 3);
        goto parse_error if ($n != 2 && $n != 4);
 
@@ -2169,9 +2181,11 @@ sub parse_drxk_addr($$$$)
                $descr .= "MultiMaster " if (($flags & 0xc0) == 0x40);
                $descr .= "ClearCRC " if (($flags & 0xc0) == 0x80);
 
+               printf "$timestamp " if ($timestamp);
                printf "%s%d_flags(state, 0x%s, %s, 0x%08x, 0x%02x); /* Flags = %s */\n", $cmd, $bits, $addr, $reg, $data, $flags, $descr;
 
        } else {
+               printf "$timestamp " if ($timestamp);
                printf "%s%d(state, 0x%s, %s, 0x%08x, %d);\n", $cmd, $bits, $addr, $reg, $data;
        }
 
@@ -2200,9 +2214,11 @@ parse_block:
                $descr .= "MultiMaster " if (($flags & 0xc0) == 0x40);
                $descr .= "ClearCRC " if (($flags & 0xc0) == 0x80);
 
+               printf "$timestamp " if ($timestamp);
                printf "%s_block_flags(state, 0x%s, %s, %d, %s, %d); /* Flags = %s */\n", $cmd, $addr, $reg, $n, $data, $flags, $descr;
 
        } else {
+               printf "$timestamp " if ($timestamp);
                printf "%s_block(state, 0x%s, %s, 0x%08x, %d, %s);\n", $cmd, $addr, $reg, $n, $data;
        }
 
@@ -2217,10 +2233,13 @@ parse_error:
                        } else {
                                $old_reg = sprintf "0x%08x", $old_reg;
                        }
+                       printf "$old_timestamp " if ($old_timestamp);
                        printf "ERR: DRX-K write(state, 0x%s, %s, 0x%08x) without data. Probably an read ops + read error\n", $bits, $addr, $old_reg, $old_flags;
                }
+               printf "$timestamp " if ($timestamp);
                printf "i2c_master_send(0x%s>>1, { %s }, %d);\n", $addr, $app_data, $n;
        } else {
+               printf "$timestamp " if ($timestamp);
                printf "i2c_master_recv(0x%s>>1, { %s }, %d);\n", $addr, $app_data, $n;
        }
 }
@@ -2231,6 +2250,14 @@ parse_error:
 
 while (<>) {
        my $org_line = $_;
+
+       my $timestamp;
+
+       if ($show_timestamp) {
+               $timestamp = $1 if (m/(.*)c0 0[23] 00 00 /);
+               $timestamp =~ s/\s+$//;
+       }
+
        tr/A-F/a-f/;
        if (m/c0 00 00 00 ([0-9a-f].) 00 01 00\s+[\<]+\s+([0-9a-f].)/) {
                if ($1 eq "43" && $2 eq "00") {
@@ -2244,6 +2271,7 @@ while (<>) {
                my $reg = "0x$1";
                $reg = $reg_map{$reg} if defined($reg_map{$reg});
 
+               printf "$timestamp " if ($show_timestamp && $show_em28xx);
                printf "em28xx_read_reg(dev, %s);\t\t/* read 0x%s */\n",
                        $reg, $2 if ($show_em28xx);
                next;
@@ -2253,7 +2281,7 @@ while (<>) {
                        if ($1 eq "42") {
                                $r42 = "0x$2";
                                if ($r40 >= 0) {
-                                       output_ac97();
+                                       output_ac97($timestamp) if ($show_ac97);
                                        next;
                                }
                                next;
@@ -2264,6 +2292,7 @@ while (<>) {
                my $reg = "0x$1";
                $reg = $reg_map{$reg} if defined($reg_map{$reg});
 
+               printf "$timestamp " if ($timestamp && $show_em28xx);
                printf "em28xx_write_reg(dev, %s, 0x%s);\n",
                        $reg, $2  if ($show_em28xx);
                next;
@@ -2275,7 +2304,7 @@ while (<>) {
                                $dir = -1;
 
                                if ($r42 >= 0) {
-                                       output_ac97();
+                                       output_ac97($timestamp) if ($show_ac97);
                                        next;
                                }
                                next;
@@ -2285,6 +2314,7 @@ while (<>) {
                my $reg = "0x$1";
                $reg = $reg_map{$reg} if defined($reg_map{$reg});
 
+               printf "$timestamp " if ($timestamp && $show_em28xx);
                printf "em28xx_read_reg16(dev, %s);\t\t/*read 0x%s%s */\n",
                        $reg, $3, $2  if ($show_em28xx);
                next;
@@ -2296,7 +2326,7 @@ while (<>) {
                                $dir = 1;
 
                                if ($r42 >= 0) {
-                                       output_ac97() if ($show_ac97);
+                                       output_ac97($timestamp) if ($show_ac97);
                                        next;
                                }
                                next;
@@ -2306,6 +2336,7 @@ while (<>) {
                my $reg = "0x$1";
                $reg = $reg_map{$reg} if defined($reg_map{$reg});
 
+               printf "$timestamp " if ($timestamp && $show_em28xx);
                printf "em28xx_write_reg16(dev, %s,0x%s%s);\n",
                        $reg, $3, $2 if ($show_em28xx);
                next;
@@ -2313,21 +2344,24 @@ while (<>) {
 
        if (m/40 0[23] 00 00 ([0-9a-f].) 00 ([0-9a-f].) 00\s+[\>]+\s+([0-9a-f ]+)/) {
                if ($1 eq "52") {
-                       parse_drxk_addr($1, $2, $3, 1);
+                       parse_drxk_addr($timestamp, $1, $2, $3, 1);
                } else {
+                       printf "$timestamp " if ($timestamp && $show_other_xfer);
                        printf "i2c_master_send(0x$1>>1, { $3 }, 0x$2);\n" if ($show_other_xfer);
                }
                next;
        }
        if (m/c0 0[23] 00 00 ([0-9a-f].) 00 ([0-9a-f].) 00\s+[\<]+\s+([0-9a-f ]+)/) {
                if ($1 eq "52") {
-                       parse_drxk_addr($1, $2, $3, 0);
+                       parse_drxk_addr($timestamp, $1, $2, $3, 0);
                } else {
+                       printf "$timestamp " if ($timestamp && $show_other_xfer);
                        printf "i2c_master_recv(0x$1>>1, &buf, 0x$2); /* $3 */\n" if ($show_other_xfer);
                }
                next;
        }
        if (m/c0 0[23] 00 00 ([0-9a-f].) 00 ([0-9a-f].) 00\s+[\<]+/) {
+               printf "$timestamp " if ($timestamp && $show_other_xfer);
                printf "i2c_master_recv(0x$1>>1, &buf, 0x$2); /* nothing returned */\n" if ($show_other_xfer);
                next;
        }