Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-11-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-10-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-8-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Log illegal commands as GUEST_ERROR.
Note: we are logging back the SDIO commands (CMD5, CMD52-54).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-6-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Add 2 command handler arrays in SDProto, for CMD and ACMD.
Have sd_normal_command() / sd_app_command() use these arrays:
if an command handler is registered, call it, otherwise fall
back to current code base.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-5-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Introduce a new structure to hold the bus protocol specific
fields: SDProto. The first field is the protocol name.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-4-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
We report the card is in an inconsistent state, but don't precise
in which state it is. Add this information, as it is useful when
debugging problems.
Since we will reuse this code, extract as sd_invalid_state_for_cmd()
helper.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-2-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
CMD19 (SEND_TUNING_BLOCK) and CMD23 (SET_BLOCK_COUNT) were
added in the Physical Layer Simplified Specification v3.01.
When earlier spec version is requested, we should return ILLEGAL.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220509141320.98374-1-philippe.mathieu.daude@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Bring the files in line with the QEMU coding style, with spaces
for indentation.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/378
Signed-off-by: Yeqi Fu <fufuyqqqqqq@gmail.com>
Message-Id: <20230315032649.57568-1-fufuyqqqqqq@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Swap 'buf' and 'bytes' around for consistency with
blk_co_{pread,pwrite}(), and in preparation to implement these functions
using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pread(blk, offset, buf, bytes, flags)
+ blk_pread(blk, offset, bytes, buf, flags)
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pwrite(blk, offset, buf, bytes, flags)
+ blk_pwrite(blk, offset, bytes, buf, flags)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-4-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
For consistency with other I/O functions, and in preparation to
implement it using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes; @@
- blk_pread(blk, offset, buf, bytes)
+ blk_pread(blk, offset, buf, bytes, 0)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-3-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
In SPI-mode, SD card's OCR register: Card Capacity Status (CCS) bit
is not set to 1 correclty when the assigned SD image size is larger
than 2GB (SDHC). This will cause the SD card to be indentified as SDSC
incorrectly. CCS bit should be set to 1 if we are using SDHC.
Also, as there's no power up emulation in SPI-mode.
The OCR register: Card power up status bit bit (busy) should also
be set to 1 when reset. (busy bit is set to LOW if the card has not
finished the power up routine.)
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211228125719.14712-1-frank.chang@sifive.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
'wp_groups' holds a bitmap, rename it as 'wp_group_bmap'.
'wpgrps_size' is the bitmap size (in bits), rename it as
'wp_group_bits'.
Patch created mechanically using:
$ sed -i -e s/wp_groups/wp_group_bmap/ \
-e s/wpgrps_size/wp_group_bits/ hw/sd/sd.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210728181728.2012952-4-f4bug@amsat.org>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
OSS-Fuzz found sending illegal addresses when querying the write
protection bits triggers the assertion added in commit 84816fb63e
("hw/sd/sdcard: Assert if accessing an illegal group"):
qemu-fuzz-i386-target-generic-fuzz-sdhci-v3: ../hw/sd/sd.c:824: uint32_t sd_wpbits(SDState *, uint64_t):
Assertion `wpnum < sd->wpgrps_size' failed.
#3 0x7f62a8b22c91 in __assert_fail
#4 0x5569adcec405 in sd_wpbits hw/sd/sd.c:824:9
#5 0x5569adce5f6d in sd_normal_command hw/sd/sd.c:1389:38
#6 0x5569adce3870 in sd_do_command hw/sd/sd.c:1737:17
#7 0x5569adcf1566 in sdbus_do_command hw/sd/core.c💯16
#8 0x5569adcfc192 in sdhci_send_command hw/sd/sdhci.c:337:12
#9 0x5569adcfa3a3 in sdhci_write hw/sd/sdhci.c:1186:9
#10 0x5569adfb3447 in memory_region_write_accessor softmmu/memory.c:492:5
It is legal for the CMD30 to query for out-of-range addresses.
Such invalid addresses are simply ignored in the response (write
protection bits set to 0).
In commit 84816fb63e ("hw/sd/sdcard: Assert if accessing an illegal
group") we misplaced the assertion *before* we test the address is
in range. Move it *after*.
Include the qtest reproducer provided by Alexander Bulekov:
$ make check-qtest-i386
...
Running test qtest-i386/fuzz-sdcard-test
qemu-system-i386: ../hw/sd/sd.c:824: sd_wpbits: Assertion `wpnum < sd->wpgrps_size' failed.
Cc: qemu-stable@nongnu.org
Reported-by: OSS-Fuzz (Issue 29225)
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: 84816fb63e ("hw/sd/sdcard: Assert if accessing an illegal group")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/495
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210802235524.3417739-3-f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Per the 'Physical Layer Simplified Specification Version 3.01',
Table 4-22: 'Block Oriented Write Protection Commands'
SEND_WRITE_PROT (CMD30)
If the card provides write protection features, this command asks
the card to send the status of the write protection bits [1].
[1] 32 write protection bits (representing 32 write protect groups
starting at the specified address) [...]
The last (least significant) bit of the protection bits corresponds
to the first addressed group. If the addresses of the last groups
are outside the valid range, then the corresponding write protection
bits shall be set to 0.
Split the if() statement (without changing the behaviour of the code)
to better position the description comment.
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210802235524.3417739-2-f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
OSS-Fuzz found sending illegal addresses when querying the write
protection bits triggers an assertion:
qemu-fuzz-i386: hw/sd/sd.c:824: uint32_t sd_wpbits(SDState *, uint64_t): Assertion `wpnum < sd->wpgrps_size' failed.
==11578== ERROR: libFuzzer: deadly signal
#8 0x7ffff628e091 in __assert_fail
#9 0x5555588f1a3c in sd_wpbits hw/sd/sd.c:824:9
#10 0x5555588dd271 in sd_normal_command hw/sd/sd.c:1383:38
#11 0x5555588d777c in sd_do_command hw/sd/sd.c
#12 0x555558cb25a0 in sdbus_do_command hw/sd/core.c💯16
#13 0x555558e02a9a in sdhci_send_command hw/sd/sdhci.c:337:12
#14 0x555558dffa46 in sdhci_write hw/sd/sdhci.c:1187:9
#15 0x5555598b9d76 in memory_region_write_accessor softmmu/memory.c:489:5
Similarly to commit 8573378e62 ("hw/sd: fix out-of-bounds check
for multi block reads"), check the address range before sending
the status of the write protection bits.
Include the qtest reproducer provided by Alexander Bulekov:
$ make check-qtest-i386
...
Running test qtest-i386/fuzz-sdcard-test
qemu-system-i386: ../hw/sd/sd.c:824: sd_wpbits: Assertion `wpnum < sd->wpgrps_size' failed.
Reported-by: OSS-Fuzz (Issue 29225)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/450
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20210702155900.148665-4-f4bug@amsat.org>
Multiple commands have to check the address requested is valid.
Extract this code pattern as a new address_in_range() helper, and
log invalid accesses as guest errors.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-3-f4bug@amsat.org>
We report the card is in an inconsistent state, but don't precise
in which state it is. Add this information, as it is useful when
debugging problems.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-2-f4bug@amsat.org>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
At present the sd_erase() does not erase the requested range of card
data to 0xFFs. Let's make the erase operation actually happen.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <1613811493-58815-1-git-send-email-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
"qemu-common.h" should be included to provide the forward declaration
of qemu_hexdump() when DEBUG_SD is on.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210228050609.24779-1-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Unlike SD mode, when SD card is working in SPI mode, the argument
of CMD13 is stuff bits. Hence we should bypass the RCA check.
See "Physical Layer Specification Version 8.00", chapter 7.3.1.3
Detailed Command Description (SPI mode):
"The card shall ignore stuff bits and reserved bits in an argument"
and Table 7-3 Commands and Arguments (SPI mode):
"CMD13 Argument [31:0] stuff bits"
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-9-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
High capacity cards don't support write protection hence we should
not perform the write protect groups check in CMD24/25 for them.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-8-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
High capacity cards don't support write protection hence we should
not perform the write protect groups check in sd_erase() for them.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-6-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
These APIs and macros may be referenced by functions that are
currently before them. Move them ahead a little bit.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Per the "Physical Layer Specification Version 8.00", table 4-26
(SD mode) and table 7-3 (SPI mode) command descriptions, CMD30
response type is R1, not R1b.
Fixes: a1bb27b1e9 ("SD card emulation initial implementation")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-4-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Per the "Physical Layer Specification Version 8.00", table 4-26
(SD mode) and table 7-3 (SPI mode) command descriptions, the
following commands:
- CMD28 (SET_WRITE_PROT)
- CMD29 (CLR_WRITE_PROT)
- CMD30 (SEND_WRITE_PROT)
are only supported by SDSC cards.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-3-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
For high capacity memory cards, the erase start address and end
address are multiplied by 512, but the address check is still
based on the original block number in sd->erase_{start, end}.
Fixes: 1bd6fd8ed5 ("hw/sd/sdcard: Do not attempt to erase out of range addresses")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-2-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
At present there is a data_ready() callback for the SD data read
path. Let's add a receive_ready() for the SD data write path.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210128063035.15674-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
At present the single/multiple block write in SPI mode is blocked
by sd_normal_command(). Remove the limitation.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210128063035.15674-4-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The single block read (CMD17) codes are the same as the multiple
block read (CMD18). Merge them into one. The same applies to single
block write (CMD24) and multiple block write (CMD25).
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210128063035.15674-3-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Currently, blk_is_read_only() tells whether a given BlockBackend can
only be used in read-only mode because its root node is read-only. Some
callers actually try to answer a slightly different question: Is the
BlockBackend configured to be writable, by taking write permissions on
the root node?
This can differ, for example, for CD-ROM devices which don't take write
permissions, but may be backed by a writable image file. scsi-cd allows
write requests to the drive if blk_is_read_only() returns false.
However, the write request will immediately run into an assertion
failure because the write permission is missing.
This patch introduces separate functions for both questions.
blk_supports_write_perm() answers the question whether the block
node/image file can support writable devices, whereas blk_is_writable()
tells whether the BlockBackend is currently configured to be writable.
All calls of blk_is_read_only() are converted to one of the two new
functions.
Fixes: https://bugs.launchpad.net/bugs/1906693
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210118123448.307825-2-kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
commit f6fb1f9b31 ("sdcard: Correct CRC16 offset in sd_function_switch()")
changed the 16-bit CRC to be stored at offset 64. In fact, this CRC
calculation is completely wrong. From the original codes, it wants
to calculate the CRC16 of the first 64 bytes of sd->data[], however
passing 64 as the `width` to sd_crc16() actually counts 256 bytes
starting from the `message` for the CRC16 calculation, which is not
what we want.
Besides that, it seems existing sd_crc16() algorithm does not match
the SD spec, which says CRC16 is the CCITT one but the calculation
does not produce expected result. It turns out the CRC16 was never
transferred outside the sd core, as in sd_read_byte() we see:
if (sd->data_offset >= 64)
sd->state = sd_transfer_state;
Given above reasons, let's drop it.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210123104016.17485-6-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
After the card is put into SPI mode, CRC check for all commands
including CMD0 will be done according to CMD59 setting. But this
command is currently unimplemented. Simply allow the decoding of
CMD59, but the CRC remains unchecked.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210123104016.17485-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
Move the property types and property macros implemented in
qdev-properties-system.c to a new qdev-properties-system.h
header.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201211220529.2290218-16-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Per the SD spec, to indicate a 2 GiB card, BLOCK_LEN shall be 1024
bytes, hence the READ_BL_LEN field in the CSD register shall be 10
instead of 9.
This fixes the acceptance test error for the NetBSD 9.0 test of the
Orange Pi PC that has an expanded SD card image of 2 GiB size.
Fixes: 6d2d4069c4 ("hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card")
Reported-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-Id: <20201025152357.11865-1-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The function selection fields (399:376) should be zeroed out to
prevent leftover from being or'ed into the switch function status
data structure.
This fixes the boot failure as seen in the acceptance testing on
the orangepi target.
Fixes: b638627c72 ("hw/sd: Fix incorrect populated function switch status data structure")
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201024014954.21330-1-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
I/O request length can not be negative.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-15-f4bug@amsat.org>
CRC functions don't modify the buffer argument,
make it const.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200630133912.9428-14-f4bug@amsat.org>
cmd_valid_while_locked() only needs to read SDRequest->cmd,
pass it directly and make it const.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-13-f4bug@amsat.org>
Add more descriptive comments to keep a clear separation
between static property vs runtime changeable.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-12-f4bug@amsat.org>
We can not have more group than 'wpgrps_size'.
Assert if we are accessing a group above this limit.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-7-f4bug@amsat.org>
While the Spec v3 is not very clear, v6 states:
If the host provides an out of range address as an argument
to CMD32 or CMD33, the card shall indicate OUT_OF_RANGE error
in R1 (ERX) for CMD38.
If an address is out of range, do not attempt to erase it:
return R1 with the error bit set.
Buglink: https://bugs.launchpad.net/qemu/+bug/1895310
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-6-f4bug@amsat.org>
From the Spec "4.3.5 Erase":
The host should adhere to the following command
sequence: ERASE_WR_BLK_START, ERASE_WR_BLK_END and
ERASE (CMD38).
If an erase (CMD38) or address setting (CMD32, 33)
command is received out of sequence, the card shall
set the ERASE_SEQ_ERROR bit in the status register
and reset the whole sequence.
Reset both addresses if the ERASE command occured
out of sequence (one of the start/end address is
not set).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-5-f4bug@amsat.org>
As it is legal to WRITE/ERASE the address/block 0,
change the value of this definition to an illegal
address: UINT32_MAX.
Unfortunately this break the migration stream, so
bump the VMState version number. This affects some
ARM boards and the SDHCI_PCI device (which is only
used for testing).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-4-f4bug@amsat.org>
'0' is used as a value to indicate an invalid (or unset)
address. Use a definition instead of a magic value.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-3-f4bug@amsat.org>
Trace addresses provided to the ERASE command.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-2-f4bug@amsat.org>
qemu_hexdump()'s pointer to the buffer and length of the
buffer are closely related arguments but are widely separated
in the argument list order (also, the format of <stdio.h>
function prototypes is usually to have the FILE* argument
coming first).
Reorder the arguments as "fp, prefix, buf, size" which is
more logical.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Most uses of qemu_hexdump() do not take an array of char
as input, forcing use of cast. Since we can use this
helper to dump any kind of buffer, use a pointer to void
argument instead.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Per the SD spec, Standard Capacity SD Memory Card (SDSC) supports
capacity up to and including 2 GiB.
Fixes: 2d7adea4fe ("hw/sd: Support SDHC size cards")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-Id: <1598021136-49525-2-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
At present the function switch status data structure bit [399:376]
are wrongly pupulated. These 3 bytes encode function switch status
for the 6 function groups, with 4 bits per group, starting from
function group 6 at bit 399, then followed by function group 5 at
bit 395, and so on.
However the codes mistakenly fills in the function group 1 status
at bit 399. This fixes the code logic.
Fixes: a1bb27b1e9 ("SD card emulation (initial implementation)")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-Id: <1598021136-49525-1-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The read/write_data() methods write do a single byte access
on the data line of a SD card. Rename them as read/write_byte().
Add some documentation (not in "hw/sd/sdcard_legacy.h" which we
are going to remove soon).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200814092346.21825-2-f4bug@amsat.org>
omap_mmc.c is the last device left using the legacy sdcard API.
Move the prototype declarations into a separate header, to
make it clear this is a legacy API.
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180216022933.10945-8-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
sd_data_ready() belongs to the legacy API. As its last user has
been converted to the SDBus API, make it static.
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180216022933.10945-7-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Only move the state machine to ReceivingData if there is no
pending error. This avoids later OOB access while processing
commands queued.
"SD Specifications Part 1 Physical Layer Simplified Spec. v3.01"
4.3.3 Data Read
Read command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
occurred and no data transfer is performed.
4.3.4 Data Write
Write command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
occurred and no data transfer is performed.
WP_VIOLATION errors are not modified: the error bit is set, we
stay in receive-data state, wait for a stop command. All further
data transfer is ignored. See the check on sd->card_status at the
beginning of sd_read_data() and sd_write_data().
Fixes: CVE-2020-13253
Cc: qemu-stable@nongnu.org
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Buglink: https://bugs.launchpad.net/qemu/+bug/1880822
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-6-f4bug@amsat.org>
To make the next commit easier to review, clean this code first.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200630133912.9428-3-f4bug@amsat.org>
QEMU allows to create SD card with unrealistic sizes. This could
work, but some guests (at least Linux) consider sizes that are not
a power of 2 as a firmware bug and fix the card size to the next
power of 2.
While the possibility to use small SD card images has been seen as
a feature, it became a bug with CVE-2020-13253, where the guest is
able to do OOB read/write accesses past the image size end.
In a pair of commits we will fix CVE-2020-13253 as:
Read command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
occurred and no data transfer is performed.
Write command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
occurred and no data transfer is performed.
WP_VIOLATION errors are not modified: the error bit is set, we
stay in receive-data state, wait for a stop command. All further
data transfer is ignored. See the check on sd->card_status at the
beginning of sd_read_data() and sd_write_data().
While this is the correct behavior, in case QEMU create smaller SD
cards, guests still try to access past the image size end, and QEMU
considers this is an invalid address, thus "all further data transfer
is ignored". This is wrong and make the guest looping until
eventually timeouts.
Fix by not allowing invalid SD card sizes (suggesting the expected
size as a hint):
$ qemu-system-arm -M orangepi-pc -drive file=rootfs.ext2,if=sd,format=raw
qemu-system-arm: Invalid SD card size: 60 MiB
SD card size has to be a power of 2, e.g. 64 MiB.
You can resize disk images with 'qemu-img resize <imagefile> <new-size>'
(note that this will lose data if you make the image smaller than it currently is).
Cc: qemu-stable@nongnu.org
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200713183209.26308-8-f4bug@amsat.org>
We don't need to check if sd->blk is set twice.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-18-f4bug@amsat.org>
Only SCSD cards support Class 6 (Block Oriented Write Protection)
commands.
"SD Specifications Part 1 Physical Layer Simplified Spec. v3.01"
4.3.14 Command Functional Difference in Card Capacity Types
* Write Protected Group
SDHC and SDXC do not support write-protected groups. Issuing
CMD28, CMD29 and CMD30 generates the ILLEGAL_COMMAND error.
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-7-f4bug@amsat.org>
The previous commit enables conversion of
qdev_prop_set_drive_err(..., &err);
if (err) {
...
}
to
if (!qdev_prop_set_drive_err(..., errp)) {
...
}
Coccinelle script:
@@
identifier fun = qdev_prop_set_drive_err;
expression list args;
typedef Error;
Error *err;
@@
- fun(args, &err);
- if (err)
+ if (!fun(args, &err))
{
...
}
One line break tidied up manually.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-33-armbru@redhat.com>
qdev_prop_set_drive() can fail. None of the other qdev_prop_set_FOO()
can; they abort on error.
To clean up this inconsistency, rename qdev_prop_set_drive() to
qdev_prop_set_drive_err(), and create a qdev_prop_set_drive() that
aborts on error.
Coccinelle script to update callers:
@ depends on !(file in "hw/core/qdev-properties-system.c")@
expression dev, name, value;
symbol error_abort;
@@
- qdev_prop_set_drive(dev, name, value, &error_abort);
+ qdev_prop_set_drive(dev, name, value);
@@
expression dev, name, value, errp;
@@
- qdev_prop_set_drive(dev, name, value, errp);
+ qdev_prop_set_drive_err(dev, name, value, errp);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200622094227.1271650-14-armbru@redhat.com>
Commit 260bc9d8aa "hw/sd/sd.c: QOMify" QOMified only the device
itself, not its users. It kept sd_init() around for non-QOMified
users.
More than four years later, three such users remain: omap1 (machines
cheetah, sx1, sx1-v1) and omap2 (machines n800, n810) are not
QOMified, and pl181 (machines integratorcp, realview-eb,
realview-eb-mpcore, realview-pb-a8 realview-pbx-a9, versatileab,
versatilepb, vexpress-a15, vexpress-a9) is not QOMified properly.
The issue I presently have with this: an "sd-card" device should plug
into an "sd-bus" (its DeviceClass member bus_type says so), but
sd_init() leaves it unplugged. This is normally a bug (I just fixed
some instances), and I'd like to assert proper pluggedness to prevent
regressions. However, the qdev-but-not-quite thing returned by
sd_init() would fail the assertion. Meh.
Make sd_init() hide it from QOM/qdev. Visible in "info qom-tree",
here's the change for cheetah:
/machine (cheetah-machine)
[...]
/unattached (container)
[...]
/device[5] (serial-mm)
/serial (serial)
/serial[0] (qemu:memory-region)
- /device[6] (sd-card)
- /device[7] (omap-gpio)
+ /device[6] (omap-gpio)
[rest of device[*] renumbered...]
Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200609122339.937862-24-armbru@redhat.com>
Replace
error_report("...: %s", ..., error_get_pretty(err));
by
error_reportf_err(err, "...: ", ...);
One of the replaced messages lacked a colon. Add it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200505101908.6207-6-armbru@redhat.com>
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h. Include hw/qdev-core.h there
instead.
hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.
While there, delete a few superfluous inclusions of hw/qdev-core.h.
Touching hw/qdev-properties.h now recompiles some 1200 objects.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).
The previous commits have left only the declaration of hw_error() in
hw/hw.h. This permits dropping most of its inclusions. Touching it
now recompiles less than 200 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
hw/hw.h supposedly includes it for convenience. Several other headers
include it just to get VMStateDescription. The previous commit made
that unnecessary.
Include migration/vmstate.h only where it's still needed. Touching it
now recompiles only some 1600 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing hw/irq.h triggers a recompile
of some 5400 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).
hw/hw.h supposedly includes it for convenience. Several other headers
include it just to get qemu_irq and.or qemu_irq_handler.
Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to
qemu/typedefs.h, and then include hw/irq.h only where it's still
needed. Touching it now recompiles only some 500 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-13-armbru@redhat.com>
Due to an off-by-one error, the assert statements allow an
out-of-bound array access. This doesn't happen in practice,
but the static analyzer notices.
Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <6b19cb7359a10a6bedc3ea0fce22fed3ef93c102.1560806687.git.lidong.chen@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sets the category of the sd memory card as DEVICE_CATEGORY_STORAGE.
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.
Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190124162045.10474-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
It eases code review, unit is explicit.
Patch generated using:
$ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/
and modified manually.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180625124238.25339-37-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
These commands got introduced by Spec v3
(see 0c3fb03f7e and 4481bbc79d).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-7-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-6-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
CMD8 is "Reserved" in Spec v1.10.
Spec v2.00 introduces the SEND_IF_COND command:
6.4.1 Power Up
CMD8 is newly added in the Physical Layer Specification Version
2.00 to support multiple voltage ranges and used to check whether
the card supports supplied voltage. The version 2.00 or later host
shall issue CMD8 and verify voltage before card initialization.
The host that does not support CMD8 shall supply high voltage range.
Message-Id: 201204252110.20873.paul@codesourcery.com
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-5-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As of this commit, the Spec v1 is not working, and all controllers
expect the cards to be conformant to Spec v2.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
From the "Physical Layer Simplified Specification Version 1.10"
Chapter 7.3 "SPI Mode Transaction Packets"
Table 57: "Commands and arguments"
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The initial implementation is based on the Specs v1.10 (see a1bb27b1e9).
However the SCR is anouncing the card being v1.01.
The new chapters added in version 1.10 are:
4.3.10 Switch function command
Switch function command (CMD6) 1 is used to switch or expand
memory card functions. [...]
This is a new feature, introduced in SD physical Layer
Specification Version 1.10. Therefore, cards that are
compatible with earlier versions of the spec do not support
it. The host shall check the "SD_SPEC" field in the SCR
register to recognize what version of the spec the card
complies with before using CMD6. It is mandatory for SD
memory card of Ver1.10 to support CMD6.
4.3.11 High-Speed mode (25MB/sec interface speed)
Though the Rev 1.01 SD memory card supports up to 12.5MB/sec
interface speed, the speed of 25MB/sec is necessary to support
increasing performance needs of the host and because of memory
size which continues to grow.
To achieve 25MB/sec interface speed, clock rate is increased to
50MHz and CLK/CMD/DAT signal timing and circuit conditions are
reconsidered and changed from Physical Layer Specification
Version 1.01.
4.3.12 Command system (This chapter is newly added in version 1.10)
SD commands CMD34-37, CMD50, CMD57 are reserved for SD command
system expansion via the switch command.
[These commands] will be considered as illegal commands (as
defined in revision 1.01 of the SD physical layer specification).
The SWITCH_FUNCTION is implemented since the first commit, a1bb27b1e9.
The 25MB/sec High-Speed mode was already updated in d7ecb86752.
The current implementation does not implements CMD34-37, CMD50 and
CMD57, thus these commands already return ILLEGAL.
With this patch, the SCR register now matches the description of the header:
* SD Memory Card emulation as defined in the "SD Memory Card Physical
* layer specification, Version 1.10."
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-2-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Per the Physical Layer Simplified Spec. "4.3.10.4 Switch Function Status":
The block length is predefined to 512 bits
and "4.10.2 SD Status":
The SD Status contains status bits that are related to the SD Memory Card
proprietary features and may be used for future application-specific usage.
The size of the SD Status is one data block of 512 bit. The content of this
register is transmitted to the Host over the DAT bus along with a 16-bit CRC.
Thus the 16-bit CRC goes at offset 64.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180509060104.4458-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
From the "Physical Layer Simplified Specification Version 3.01":
A known data block ("Tuning block") can be used to tune sampling
point for tuning required hosts. [...]
This procedure gives the system optimal timing for each specific
host and card combination and compensates for static delays in
the timing budget including process, voltage and different PCB
loads and skews. [...]
Data block, carried by DAT[3:0], contains a pattern for tuning
sampling position to receive data on the CMD and DAT[3:0] line.
[based on a patch from Alistair Francis <alistair.francis@xilinx.com>
from qemu/xilinx tag xilinx-v2015.2]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180309153654.13518-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180309153654.13518-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The SDBus will reuse these functions, so we put them in a new source file.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180309153654.13518-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: slight wordsmithing of comments, added note that string
returned does not need to be freed]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180309153654.13518-2-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-15-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-14-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-13-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-12-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
returning sd_illegal, since they are not implemented.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-11-f4bug@amsat.org
[PMM: tweak multiline comment format]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Linux uses it to poll the bus before polling for a card.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-10-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-9-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
use the registerfields API to access the OCR register
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-8-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
the code is easier to review/refactor.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-7-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
