Create a new kunit test for soc-utils and use it to test
snd_soc_tdm_params_to_bclk().
The test uses a table of values to avoid the possibility that an
on-the-fly generator contains the same algorithmic error as the
function-under-test and so fails to detect a bug.
There is no need to test every possible combination of values.
Enough test cases are included to give confidence that the function
is producing the correct results.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220405135419.1230088-4-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add a helper function snd_soc_tdm_params_to_bclk() to calculate
the bclk from params info and the tdm sots configuration.
When using a TDM frame of N slots of width W bits:
bclk = sample_rate * N * W
As a convenience to simplify calling code, if the slot count or
slot width are 0 a value will be obtained from the params. This
allows calling code to use this one function to handle cases of
TDM where only one parameter is fixed, or I2S where the slot width
is fixed (for example to set a 32-bit slot for 24-bit samples).
Also as a convenience the slot count can optionally be rounded up
to a multiple. This is mainly useful for I2S systems, since I2S has
two phases of LRCLK the number of slots is always a multiple of 2.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220405135419.1230088-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Sameer Pujar <spujar@nvidia.com>:
This series adds support for Asynchronous Sample Rate Converter (ASRC)
module on Tegra186 and later generations of SoCs. ASRC is a client of
AHUB. The driver and DT support is added to make it work with Tegra
audio graph card. The module can be plugged into audio path using ALSA
mixer controls.
ASRC supports two modes of operation, where it gets the ratio info
from SW and ratio detector module. Presently the support is added for
SW mode.
Merge series from Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>:
Following patches contain minor changes, cleaning up code to be easier
to read. Clean up few loops, to be simpler or altogether remove them.
Rename some things to make code easier to understand.
Merge series from Mark Brown <broonie@kernel.org>:
This series contains a bunch of fairly minor changes which overhaul and
modernise the WM8731 driver, there should be no impact on the driver's
functionality.
Merge series from Ranjani Sridharan <ranjani.sridharan@linux.intel.com>:
This series includes some miscellaenous fixes pertaining to IPC, DMA
buffer and DMA trace.
Merge series from Trevor Wu <trevor.wu@mediatek.com>:
This series of patches adds support for mt8195 board with mt6359, max98390
and rt5682. To prevent from copy-paste components, mt8195 machine
drivers and dt-bindings are merged in the patch.
Merge series from Mark Brown <broonie@kernel.org>:
At some point the machine driver for the audio subsystem on the
AT91SAM9G20-EK appears to have bitrotted, no longer probing due to
effects of the transition to the common clock framework. The first patch
in this series fixes the initial probe problem, with the rest of the
series being random other fixes and cleanups I noticed while looking at
the driver.
We enabled UBSAN in the ubuntu kernel, and the cs35l41 driver triggers
a warning calltrace like below:
cs35l41-hda i2c-CSC3551:00-cs35l41-hda.0: bitoffset= 8, word_offset=23, bit_sum mod 32=0, otp_map[i].size = 24
cs35l41-hda i2c-CSC3551:00-cs35l41-hda.0: bitoffset= 0, word_offset=24, bit_sum mod 32=24, otp_map[i].size = 0
================================================================================
UBSAN: shift-out-of-bounds in linux-kernel-src/sound/soc/codecs/cs35l41-lib.c:836:8
shift exponent 64 is too large for 64-bit type 'long unsigned int'
CPU: 10 PID: 595 Comm: systemd-udevd Not tainted 5.15.0-23-generic #23
Hardware name: LENOVO \x02MFG_IN_GO/\x02MFG_IN_GO, BIOS N3GET19W (1.00 ) 03/11/2022
Call Trace:
<TASK>
show_stack+0x52/0x58
dump_stack_lvl+0x4a/0x5f
dump_stack+0x10/0x12
ubsan_epilogue+0x9/0x45
__ubsan_handle_shift_out_of_bounds.cold+0x61/0xef
? regmap_unlock_mutex+0xe/0x10
cs35l41_otp_unpack.cold+0x1c6/0x2b2 [snd_soc_cs35l41_lib]
cs35l41_hda_probe+0x24f/0x33a [snd_hda_scodec_cs35l41]
cs35l41_hda_i2c_probe+0x65/0x90 [snd_hda_scodec_cs35l41_i2c]
When both bitoffset and otp_map[i].size are 0, the line 836 will
result in GENMASK(-1, 0), this triggers the shift-out-of-bounds
calltrace.
Here add a checking, if both bitoffset and otp_map[i].size are 0,
do not run GENMASK() and directly set otp_val to 0, this will not
bring any function change on the driver but could avoid the calltrace.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20220324081839.62009-2-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The bug is here:
if (!dai) {
The list iterator value 'dai' will *always* be set and non-NULL
by for_each_component_dais(), so it is incorrect to assume that
the iterator value will be NULL if the list is empty or no element
is found (In fact, it will be a bogus pointer to an invalid struct
object containing the HEAD). Otherwise it will bypass the check
'if (!dai) {' (never call dev_err() and never return -ENODEV;)
and lead to invalid memory access lately when calling
'rt5682_set_bclk1_ratio(dai, factor);'.
To fix the bug, just return rt5682_set_bclk1_ratio(dai, factor);
when found the 'dai', otherwise dev_err() and return -ENODEV;
Cc: stable@vger.kernel.org
Fixes: ebbfabc16d ("ASoC: rt5682: Add CCF usage for providing I2S clks")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327081002.12684-1-xiam0nd.tong@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
These two bug are here:
list_for_each_entry_safe_continue(w, n, list,
power_list);
list_for_each_entry_safe_continue(w, n, list,
power_list);
After the list_for_each_entry_safe_continue() exits, the list iterator
will always be a bogus pointer which point to an invalid struct objdect
containing HEAD member. The funciton poniter 'w->event' will be a
invalid value which can lead to a control-flow hijack if the 'w' can be
controlled.
The original intention was to continue the outer list_for_each_entry_safe()
loop with the same entry if w->event is NULL, but misunderstanding the
meaning of list_for_each_entry_safe_continue().
So just add a 'continue;' to fix the bug.
Cc: stable@vger.kernel.org
Fixes: 163cac061c ("ASoC: Factor out DAPM sequence execution")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220329012134.9375-1-xiam0nd.tong@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The CS35L41_NUM_OTP_ELEM is 100, but only 99 entries are defined in
the array otp_map_1/2[CS35L41_NUM_OTP_ELEM], this will trigger UBSAN
to report a shift-out-of-bounds warning in the cs35l41_otp_unpack()
since the last entry in the array will result in GENMASK(-1, 0).
UBSAN reports this problem:
UBSAN: shift-out-of-bounds in /home/hwang4/build/jammy/jammy/sound/soc/codecs/cs35l41-lib.c:836:8
shift exponent 64 is too large for 64-bit type 'long unsigned int'
CPU: 10 PID: 595 Comm: systemd-udevd Not tainted 5.15.0-23-generic #23
Hardware name: LENOVO \x02MFG_IN_GO/\x02MFG_IN_GO, BIOS N3GET19W (1.00 ) 03/11/2022
Call Trace:
<TASK>
show_stack+0x52/0x58
dump_stack_lvl+0x4a/0x5f
dump_stack+0x10/0x12
ubsan_epilogue+0x9/0x45
__ubsan_handle_shift_out_of_bounds.cold+0x61/0xef
? regmap_unlock_mutex+0xe/0x10
cs35l41_otp_unpack.cold+0x1c6/0x2b2 [snd_soc_cs35l41_lib]
cs35l41_hda_probe+0x24f/0x33a [snd_hda_scodec_cs35l41]
cs35l41_hda_i2c_probe+0x65/0x90 [snd_hda_scodec_cs35l41_i2c]
? cs35l41_hda_i2c_remove+0x20/0x20 [snd_hda_scodec_cs35l41_i2c]
i2c_device_probe+0x252/0x2b0
Fixes: 6450ef5590 ("ASoC: cs35l41: CS35L41 Boosted Smart Amplifier")
Reviewed-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20220328123535.50000-2-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
As part of the ongoing i2c transition to the simple probe
("probe_new"), this patch uses i2c_match_id to retrieve the
driver_data for the probed device. The id parameter is thus no longer
necessary and the simple probe can be used instead.
This patch follows the model set by da7218_of_get_id().
Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20220325171904.1223539-1-steve@sk2.org
Signed-off-by: Mark Brown <broonie@kernel.org>
At the kzalloc() call in dpcm_be_connect(), there is no spin lock involved.
It's merely protected by card->pcm_mutex, instead. The spinlock is applied
at the later call with snd_soc_pcm_stream_lock_irq() only for the list
manipulations. (See it's *_irq(), not *_irqsave(); that means the context
being sleepable at that point.) So, we can use GFP_KERNEL safely there.
This patch revert commit d8a9c6e1f6 ("ASoC: soc-pcm: use GFP_ATOMIC for
dpcm structure") which is no longer needed since commit b7898396f4
("ASoC: soc-pcm: Fix and cleanup DPCM locking").
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e740f1930843060e025e3c0f17ec1393cfdafb26.1648757961.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
The bug is here:
if (!dai) {
The list iterator value 'dai' will *always* be set and non-NULL
by for_each_component_dais(), so it is incorrect to assume that
the iterator value will be NULL if the list is empty or no element
is found (In fact, it will be a bogus pointer to an invalid struct
object containing the HEAD). Otherwise it will bypass the check
'if (!dai) {' (never call dev_err() and never return -ENODEV;)
and lead to invalid memory access lately when calling
'rt5682s_set_bclk1_ratio(dai, factor);'.
To fix the bug, just return rt5682s_set_bclk1_ratio(dai, factor);
when found the 'dai', otherwise dev_err() and return -ENODEV;
Cc: stable@vger.kernel.org
Fixes: bdd229ab26 ("ASoC: rt5682s: Add driver for ALC5682I-VS codec")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327081300.12962-1-xiam0nd.tong@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The MCLK of the WM8731 on the AT91SAM9G20-EK board is connected to the
PCK0 output of the SoC, intended in the reference software to be supplied
using PLLB and programmed to 12MHz. As originally written for use with a
board file the audio driver was responsible for configuring the entire tree
but in the conversion to the common clock framework the registration of
the named pck0 and pllb clocks was removed so the driver has failed to
instantiate ever since.
Since the WM8731 driver has had support for managing a MCLK provided via
the common clock framework for some time we can simply drop all the clock
management code from the machine driver other than configuration of the
sysclk rate, the CODEC driver still respects that configuration from the
machine driver.
Fixes: ff78a189b0 ("ARM: at91: remove old at91-specific clock driver")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220325154241.1600757-2-broonie@kernel.org
