1 /* 2 * MMC Host Controller Commands 3 * 4 * Copyright (c) 2021 Google LLC 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * for more details. 15 */ 16 17 #include "libqtest.h" 18 19 /* more details at hw/sd/sdhci-internal.h */ 20 #define SDHC_BLKSIZE 0x04 21 #define SDHC_BLKCNT 0x06 22 #define SDHC_ARGUMENT 0x08 23 #define SDHC_TRNMOD 0x0C 24 #define SDHC_CMDREG 0x0E 25 #define SDHC_BDATA 0x20 26 #define SDHC_PRNSTS 0x24 27 #define SDHC_BLKGAP 0x2A 28 #define SDHC_CLKCON 0x2C 29 #define SDHC_SWRST 0x2F 30 #define SDHC_CAPAB 0x40 31 #define SDHC_MAXCURR 0x48 32 #define SDHC_HCVER 0xFE 33 34 /* TRNSMOD Reg */ 35 #define SDHC_TRNS_BLK_CNT_EN 0x0002 36 #define SDHC_TRNS_READ 0x0010 37 #define SDHC_TRNS_WRITE 0x0000 38 #define SDHC_TRNS_MULTI 0x0020 39 40 /* CMD Reg */ 41 #define SDHC_CMD_DATA_PRESENT (1 << 5) 42 #define SDHC_ALL_SEND_CID (2 << 8) 43 #define SDHC_SEND_RELATIVE_ADDR (3 << 8) 44 #define SDHC_SELECT_DESELECT_CARD (7 << 8) 45 #define SDHC_SEND_CSD (9 << 8) 46 #define SDHC_STOP_TRANSMISSION (12 << 8) 47 #define SDHC_READ_MULTIPLE_BLOCK (18 << 8) 48 #define SDHC_WRITE_MULTIPLE_BLOCK (25 << 8) 49 #define SDHC_APP_CMD (55 << 8) 50 51 /* SWRST Reg */ 52 #define SDHC_RESET_ALL 0x01 53 54 /* CLKCTRL Reg */ 55 #define SDHC_CLOCK_INT_EN 0x0001 56 #define SDHC_CLOCK_INT_STABLE 0x0002 57 #define SDHC_CLOCK_SDCLK_EN (1 << 2) 58 59 /* Set registers needed to send commands to SD */ 60 void sdhci_cmd_regs(QTestState *qts, uint64_t base_addr, uint16_t blksize, 61 uint16_t blkcnt, uint32_t argument, uint16_t trnmod, 62 uint16_t cmdreg); 63 64 /* Read at most 1 block of SD using non-DMA */ 65 ssize_t sdhci_read_cmd(QTestState *qts, uint64_t base_addr, char *msg, 66 size_t count); 67 68 /* Write at most 1 block of SD using non-DMA */ 69 void sdhci_write_cmd(QTestState *qts, uint64_t base_addr, const char *msg, 70 size_t count, size_t blksize); 71