/* ASIC status check - some cards have one or two ASICs that need to be
loaded. Once that load is complete, this function is called to see if
the load was successful.
If this load fails, it does not necessarily mean that the hardware is
defective - the external box may be disconnected or turned off.
This routine sometimes fails for Layla20; for Layla20, the loop runs
5 times and succeeds if it wins on three of the loops. */
static int check_asic_status(struct echoaudio *chip)
{
u32 asic_status;
int goodcnt, i;
chip->asic_loaded = FALSE;
for (i = goodcnt = 0; i < 5; i++) {
send_vector(chip, DSP_VC_TEST_ASIC);
/* The DSP will return a value to indicate whether or not
the ASIC is currently loaded */
if (read_dsp(chip, &asic_status) < 0) {
DE_ACT(("check_asic_status: failed on read_dsp\n"));
return -EIO;
}
if (asic_status == ASIC_ALREADY_LOADED) {
if (++goodcnt == 3) {
chip->asic_loaded = TRUE;
return 0;
}
}
}
return -EIO;
}
static int read_sn(struct echoaudio *chip)
{
int i;
u32 sn[6];
for (i = 0; i < 5; i++) {
if (read_dsp(chip, &sn[i])) {
snd_printk(KERN_ERR "Failed to read serial number\n");
return -EIO;
}
}
DE_INIT(("Read serial number %08x %08x %08x %08x %08x\n",
sn[0], sn[1], sn[2], sn[3], sn[4]));
return 0;
}
static int check_asic_status(struct echoaudio *chip)
{
u32 asic_status;
send_vector(chip, DSP_VC_TEST_ASIC);
if (read_dsp(chip, &asic_status) < 0) {
DE_INIT(("check_asic_status: failed on read_dsp\n"));
chip->asic_loaded = FALSE;
return -EIO;
}
chip->asic_loaded = (asic_status == ASIC_ALREADY_LOADED);
return chip->asic_loaded ? 0 : -EIO;
}
/* This function is used to read back the serial number from the DSP;
this is triggered by the SET_COMMPAGE_ADDR command.
Only some early Echogals products have serial numbers in the ROM;
the serial number is not used, but you still need to do this as
part of the DSP load process. */
static int read_sn(struct echoaudio *chip)
{
int i;
u32 sn[6];
for (i = 0; i < 5; i++) {
if (read_dsp(chip, &sn[i])) {
dev_err(chip->card->dev,
"Failed to read serial number\n");
return -EIO;
}
}
dev_dbg(chip->card->dev,
"Read serial number %08x %08x %08x %08x %08x\n",
sn[0], sn[1], sn[2], sn[3], sn[4]);
return 0;
}
static int check_asic_status(struct echoaudio *chip)
{
u32 asic_status;
send_vector(chip, DSP_VC_TEST_ASIC);
/* The DSP will return a value to indicate whether or not the
ASIC is currently loaded */
if (read_dsp(chip, &asic_status) < 0) {
DE_INIT(("check_asic_status: failed on read_dsp\n"));
chip->asic_loaded = FALSE;
return -EIO;
}
chip->asic_loaded = (asic_status == ASIC_ALREADY_LOADED);
return chip->asic_loaded ? 0 : -EIO;
}
