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[PATCH] dvb: tda10046: support for different firmware versions 

added support for different tda10046 firmware versions.  tested with v20, v21
and v25.  (Andreas Oberritter)

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Johannes Stezenbach 2005-05-16 21:54:36 -07:00 committed by Linus Torvalds
parent 1dfb800f9d
commit 71e3420111
2 changed files with 36 additions and 4 deletions
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4
Documentation/dvb/get_dvb_firmware
View File

@ -107,7 +107,7 @@ sub tda10045 {
sub tda10046 {
my $sourcefile = "tt_budget_217g.zip";
my $url = "http://www.technotrend.de/new/217g/$sourcefile";
my $hash = "a25b579e37109af60f4a36c37893957c";
my $hash = "6a7e1e2f2644b162ff0502367553c72d";
my $outfile = "dvb-fe-tda10046.fw";
my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
@ -115,7 +115,7 @@ sub tda10046 {
wgetfile($sourcefile, $url);
unzip($sourcefile, $tmpdir);
extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24479, "$tmpdir/fwtmp");
extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24478, "$tmpdir/fwtmp");
verify("$tmpdir/fwtmp", $hash);
copy("$tmpdir/fwtmp", $outfile);

36
drivers/media/dvb/frontends/tda1004x.c
View File

@ -49,6 +49,7 @@ struct tda1004x_state {
/* private demod data */
u8 initialised;
enum tda1004x_demod demod_type;
u8 fw_version;
};
@ -380,6 +381,25 @@ static int tda10045_fwupload(struct dvb_frontend* fe)
return tda1004x_check_upload_ok(state, 0x2c);
}
static int tda10046_get_fw_version(struct tda1004x_state *state,
const struct firmware *fw)
{
const unsigned char pattern[] = { 0x67, 0x00, 0x50, 0x62, 0x5e, 0x18, 0x67 };
unsigned int i;
/* area guessed from firmware v20, v21 and v25 */
for (i = 0x660; i < 0x700; i++) {
if (!memcmp(&fw->data[i], pattern, sizeof(pattern))) {
state->fw_version = fw->data[i + sizeof(pattern)];
printk(KERN_INFO "tda1004x: using firmware v%02x\n",
state->fw_version);
return 0;
}
}
return -EINVAL;
}
static int tda10046_fwupload(struct dvb_frontend* fe)
{
struct tda1004x_state* state = fe->demodulator_priv;
@ -393,7 +413,7 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
msleep(100);
/* don't re-upload unless necessary */
if (tda1004x_check_upload_ok(state, 0x20) == 0)
if (tda1004x_check_upload_ok(state, state->fw_version) == 0)
return 0;
/* request the firmware, this will block until someone uploads it */
@ -404,6 +424,17 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
return ret;
}
if (fw->size < 24478) { /* size of firmware v20, which is the smallest of v20, v21 and v25 */
printk("tda1004x: firmware file seems to be too small (%d bytes)\n", fw->size);
return -EINVAL;
}
ret = tda10046_get_fw_version(state, fw);
if (ret < 0) {
printk("tda1004x: unable to find firmware version\n");
return ret;
}
/* set parameters */
tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 10);
tda1004x_write_byteI(state, TDA10046H_CONFPLL3, state->config->n_i2c);
@ -427,7 +458,7 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
msleep(1);
}
return tda1004x_check_upload_ok(state, 0x20);
return tda1004x_check_upload_ok(state, state->fw_version);
}
static int tda1004x_encode_fec(int fec)
@ -1185,6 +1216,7 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
memcpy(&state->ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
state->initialised = 0;
state->demod_type = TDA1004X_DEMOD_TDA10046;
state->fw_version = 0x20; /* dummy default value */
/* check if the demod is there */
if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) {