static int test_read_cid(struct harness_t *harness_p)
{
struct sd_cid_t cid;
static const char *mdt_month[16] = {
"0",
"Jan", "Feb", "Mar", "Apr",
"May", "June", "July", "Aug",
"Sep", "Oct", "Nov", "Dec",
"13", "14", "15"
};
/* Read CID and print it to stdout. */
BTASSERT(sd_read_cid(&sd, &cid) == sizeof(cid));
std_printf(FSTR("cid {\r\n"
" manufacturer id = 0x%02x\r\n"
" application id = '%c%c'\r\n"
" product name = '%c%c%c%c%c'\r\n"
" product revision = %02x\r\n"
" product serial number = %lu\r\n"
" manufacturing date = %s %u\r\n"
" crc checksum = 0x%02x\r\n"
"}\r\n"),
(unsigned int)cid.mid,
cid.oid[0], cid.oid[1],
cid.pnm[0], cid.pnm[1], cid.pnm[2], cid.pnm[3], cid.pnm[4],
cid.prv,
cid.psn,
mdt_month[ntohs(cid.mdt) & 0xf],
2000 + ((ntohs(cid.mdt) >> 4) & 0xff),
cid.crc);
return (0);
}
static int sd_welcome_card(struct sd_host *host)
{
int retval;
/* soft reset the card */
retval = sd_reset_sequence(host);
if (retval < 0 || sd_card_is_bad(host))
goto out;
/* read Operating Conditions Register */
retval = sd_read_ocr(host);
if (retval < 0)
goto err_bad_card;
/* refuse to drive cards reporting voltage ranges out of scope */
if (!(host->ocr & host->ocr_avail)) {
sd_printk(KERN_WARNING, "reported OCR (%08x)"
" indicates that it is not safe to use this"
" card with a GameCube\n", host->ocr);
retval = -ENODEV;
goto err_bad_card;
}
/* read and decode the Card Specific Data */
retval = sd_read_csd(host);
if (retval < 0)
goto err_bad_card;
mmc_decode_csd(&host->card);
/* calculate some card access related timeouts */
sd_calc_timeouts(host);
/* read and decode the Card Identification Data */
retval = sd_read_cid(host);
if (retval < 0)
goto err_bad_card;
mmc_decode_cid(&host->card);
sd_printk(KERN_INFO, "slot%d: descr \"%s\", size %luk, block %ub,"
" serial %08x\n",
to_channel(exi_get_exi_channel(host->exi_device)),
host->card.cid.prod_name,
(unsigned long)((host->card.csd.capacity *
(1 << host->card.csd.read_blkbits)) / 1024),
1 << host->card.csd.read_blkbits,
host->card.cid.serial);
retval = 0;
goto out;
err_bad_card:
sd_card_set_bad(host);
out:
return retval;
}
/**
* def read_cid(self)
*/
static mp_obj_t class_sd_read_cid(mp_obj_t self_in)
{
struct class_sd_t *self_p;
struct sd_cid_t cid;
mp_obj_t tuple[7];
self_p = MP_OBJ_TO_PTR(self_in);
if (sd_read_cid(&self_p->drv, &cid) != sizeof(cid)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError,
"sd_read_cid() failed"));
}
tuple[0] = MP_OBJ_NEW_SMALL_INT(cid.mid);
tuple[1] = mp_obj_new_bytes((const byte *)cid.oid, sizeof(cid.oid));
tuple[2] = mp_obj_new_bytes((const byte *)cid.pnm, sizeof(cid.pnm));
tuple[3] = MP_OBJ_NEW_SMALL_INT(cid.prv);
tuple[4] = mp_obj_new_int(cid.psn);
tuple[5] = mp_obj_new_int(cid.mdt);
tuple[6] = MP_OBJ_NEW_SMALL_INT(cid.crc);
return (mp_obj_new_attrtuple(&cid_fields[0], 7, tuple));
}
/*
* Checks if media changed.
*/
static int sd_media_changed(struct gendisk *disk)
{
struct sd_host *host = disk->private_data;
unsigned int last_serial;
int retval;
/* report a media change for zombies */
if (!host)
return 1;
/* report a media change if someone forced it */
if (test_bit(__SD_MEDIA_CHANGED, &host->flags))
return 1;
/* check if the serial number of the card changed */
last_serial = host->card.cid.serial;
retval = sd_read_cid(host);
if (!retval && last_serial == host->card.cid.serial && last_serial)
clear_bit(__SD_MEDIA_CHANGED, &host->flags);
else
set_bit(__SD_MEDIA_CHANGED, &host->flags);
return (host->flags & SD_MEDIA_CHANGED) ? 1 : 0;
}