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tests/qtest/libqos: add SDHCI commands

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Signed-off-by: Shengtan Mao <stmao@google.com>
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Chris Rauer <crauer@google.com>
Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20211008002628.1958285-5-wuhaotsh@google.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Shengtan Mao 2021-10-07 17:26:27 -07:00 committed by Richard Henderson
parent 2cb06d492d
commit da2f02b360
3 changed files with 187 additions and 0 deletions
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1
tests/qtest/libqos/meson.build
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@ -5,6 +5,7 @@ libqos_srcs = files('../libqtest.c',
'fw_cfg.c',
'malloc.c',
'libqos.c',
'sdhci-cmd.c',
# spapr
'malloc-spapr.c',

116
tests/qtest/libqos/sdhci-cmd.c Normal file
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@ -0,0 +1,116 @@
/*
* MMC Host Controller Commands
*
* Copyright (c) 2021 Google LLC
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "qemu/osdep.h"
#include "sdhci-cmd.h"
#include "libqtest.h"
static ssize_t read_fifo(QTestState *qts, uint64_t reg, char *msg, size_t count)
{
uint32_t mask = 0xff;
size_t index = 0;
uint32_t msg_frag;
int size;
while (index < count) {
size = count - index;
if (size > 4) {
size = 4;
}
msg_frag = qtest_readl(qts, reg);
while (size > 0) {
msg[index] = msg_frag & mask;
if (msg[index++] == 0) {
return index;
}
msg_frag >>= 8;
--size;
}
}
return index;
}
static void write_fifo(QTestState *qts, uint64_t reg, const char *msg,
size_t count)
{
size_t index = 0;
uint32_t msg_frag;
int size;
int frag_i;
while (index < count) {
size = count - index;
if (size > 4) {
size = 4;
}
msg_frag = 0;
frag_i = 0;
while (frag_i < size) {
msg_frag |= ((uint32_t)msg[index++]) << (frag_i * 8);
++frag_i;
}
qtest_writel(qts, reg, msg_frag);
}
}
static void fill_block(QTestState *qts, uint64_t reg, int count)
{
while (--count >= 0) {
qtest_writel(qts, reg, 0);
}
}
void sdhci_cmd_regs(QTestState *qts, uint64_t base_addr, uint16_t blksize,
uint16_t blkcnt, uint32_t argument, uint16_t trnmod,
uint16_t cmdreg)
{
qtest_writew(qts, base_addr + SDHC_BLKSIZE, blksize);
qtest_writew(qts, base_addr + SDHC_BLKCNT, blkcnt);
qtest_writel(qts, base_addr + SDHC_ARGUMENT, argument);
qtest_writew(qts, base_addr + SDHC_TRNMOD, trnmod);
qtest_writew(qts, base_addr + SDHC_CMDREG, cmdreg);
}
ssize_t sdhci_read_cmd(QTestState *qts, uint64_t base_addr, char *msg,
size_t count)
{
sdhci_cmd_regs(qts, base_addr, count, 1, 0,
SDHC_TRNS_MULTI | SDHC_TRNS_READ | SDHC_TRNS_BLK_CNT_EN,
SDHC_READ_MULTIPLE_BLOCK | SDHC_CMD_DATA_PRESENT);
/* read sd fifo_buffer */
ssize_t bytes_read = read_fifo(qts, base_addr + SDHC_BDATA, msg, count);
sdhci_cmd_regs(qts, base_addr, 0, 0, 0,
SDHC_TRNS_MULTI | SDHC_TRNS_READ | SDHC_TRNS_BLK_CNT_EN,
SDHC_STOP_TRANSMISSION);
return bytes_read;
}
void sdhci_write_cmd(QTestState *qts, uint64_t base_addr, const char *msg,
size_t count, size_t blksize)
{
sdhci_cmd_regs(qts, base_addr, blksize, 1, 0,
SDHC_TRNS_MULTI | SDHC_TRNS_WRITE | SDHC_TRNS_BLK_CNT_EN,
SDHC_WRITE_MULTIPLE_BLOCK | SDHC_CMD_DATA_PRESENT);
/* write to sd fifo_buffer */
write_fifo(qts, base_addr + SDHC_BDATA, msg, count);
fill_block(qts, base_addr + SDHC_BDATA, (blksize - count) / 4);
sdhci_cmd_regs(qts, base_addr, 0, 0, 0,
SDHC_TRNS_MULTI | SDHC_TRNS_WRITE | SDHC_TRNS_BLK_CNT_EN,
SDHC_STOP_TRANSMISSION);
}

70
tests/qtest/libqos/sdhci-cmd.h Normal file
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@ -0,0 +1,70 @@
/*
* MMC Host Controller Commands
*
* Copyright (c) 2021 Google LLC
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "libqtest.h"
/* more details at hw/sd/sdhci-internal.h */
#define SDHC_BLKSIZE 0x04
#define SDHC_BLKCNT 0x06
#define SDHC_ARGUMENT 0x08
#define SDHC_TRNMOD 0x0C
#define SDHC_CMDREG 0x0E
#define SDHC_BDATA 0x20
#define SDHC_PRNSTS 0x24
#define SDHC_BLKGAP 0x2A
#define SDHC_CLKCON 0x2C
#define SDHC_SWRST 0x2F
#define SDHC_CAPAB 0x40
#define SDHC_MAXCURR 0x48
#define SDHC_HCVER 0xFE
/* TRNSMOD Reg */
#define SDHC_TRNS_BLK_CNT_EN 0x0002
#define SDHC_TRNS_READ 0x0010
#define SDHC_TRNS_WRITE 0x0000
#define SDHC_TRNS_MULTI 0x0020
/* CMD Reg */
#define SDHC_CMD_DATA_PRESENT (1 << 5)
#define SDHC_ALL_SEND_CID (2 << 8)
#define SDHC_SEND_RELATIVE_ADDR (3 << 8)
#define SDHC_SELECT_DESELECT_CARD (7 << 8)
#define SDHC_SEND_CSD (9 << 8)
#define SDHC_STOP_TRANSMISSION (12 << 8)
#define SDHC_READ_MULTIPLE_BLOCK (18 << 8)
#define SDHC_WRITE_MULTIPLE_BLOCK (25 << 8)
#define SDHC_APP_CMD (55 << 8)
/* SWRST Reg */
#define SDHC_RESET_ALL 0x01
/* CLKCTRL Reg */
#define SDHC_CLOCK_INT_EN 0x0001
#define SDHC_CLOCK_INT_STABLE 0x0002
#define SDHC_CLOCK_SDCLK_EN (1 << 2)
/* Set registers needed to send commands to SD */
void sdhci_cmd_regs(QTestState *qts, uint64_t base_addr, uint16_t blksize,
uint16_t blkcnt, uint32_t argument, uint16_t trnmod,
uint16_t cmdreg);
/* Read at most 1 block of SD using non-DMA */
ssize_t sdhci_read_cmd(QTestState *qts, uint64_t base_addr, char *msg,
size_t count);
/* Write at most 1 block of SD using non-DMA */
void sdhci_write_cmd(QTestState *qts, uint64_t base_addr, const char *msg,
size_t count, size_t blksize);