Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
imx233: always keep cards in TRAN mode
Instead of going back and forth between TRAN and STBY modes,
stay in TRAN mode all the time, this avoid two commands on each
read/write and a potential delay to wait for the card.
Change-Id: Iafd456ab9a581d870331b622eeb48dcc254eda7f
-22
-22
firmware/target/arm/imx233/sdmmc-imx233.c
-22
firmware/target/arm/imx233/sdmmc-imx233.c
···
497
497
window_start[drive] = 0;
498
498
window_end[drive] = *sec_count;
499
499
}
500
-
/* deselect card */
501
-
if(!send_cmd(drive, MMC_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
502
-
return -13;
503
500
504
501
/* MMC always support CMD23 */
505
502
support_set_block_count[drive] = false;
···
578
575
ret = -201;
579
576
goto Lend;
580
577
}
581
-
/* select card.
582
-
* NOTE: rely on SD_SELECT_CARD=MMC_SELECT_CARD */
583
-
if(!send_cmd(drive, SD_SELECT_CARD, SDMMC_RCA(drive), MCI_NO_RESP, NULL))
584
-
{
585
-
ret = -20;
586
-
goto Lend;
587
-
}
588
-
/* wait for TRAN state */
589
-
/* NOTE: rely on SD_TRAN=MMC_TRAN */
590
-
ret = wait_for_state(drive, SD_TRAN);
591
-
if(ret < 0)
592
-
goto Ldeselect;
593
578
594
579
/**
595
580
* NOTE: we need to make sure dma transfers are aligned. This is handled
···
646
631
else
647
632
ret = __xfer_sectors(drive, start, count, buf, read);
648
633
}
649
-
650
-
/* deselect card */
651
-
Ldeselect:
652
-
/* CMD7 w/rca =0 : deselects card & puts it in STBY state
653
-
* NOTE: rely on SD_DESELECT_CARD=MMC_DESELECT_CARD */
654
-
if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
655
-
ret = -23;
656
634
Lend:
657
635
/* update led status */
658
636
led(false);