/* * Linux driver for TerraTec DMX 6Fire USB * * Author: Torsten Schenk * Created: Jan 01, 2011 * Copyright: (C) Torsten Schenk * * 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. */ #ifndef USB6FIRE_CONTROL_H #define USB6FIRE_CONTROL_H #include "common.h" enum { CONTROL_MAX_ELEMENTS = 32 }; enum { CONTROL_RATE_44KHZ, CONTROL_RATE_48KHZ, CONTROL_RATE_88KHZ, CONTROL_RATE_96KHZ, CONTROL_RATE_176KHZ, CONTROL_RATE_192KHZ, CONTROL_N_RATES }; struct control_runtime { int (*update_streaming)(struct control_runtime *rt); int (*set_rate)(struct control_runtime *rt, int rate); int (*set_channels)(struct control_runtime *rt, int n_analog_out, int n_analog_in, bool spdif_out, bool spdif_in); struct sfire_chip *chip; struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS]; bool opt_coax_switch; bool line_phono_switch; bool digital_thru_switch; bool usb_streaming; u8 output_vol[6]; u8 ovol_updated; u8 output_mute; s8 input_vol[2]; u8 ivol_updated; }; int usb6fire_control_init(struct sfire_chip *chip); void usb6fire_control_abort(struct sfire_chip *chip); void usb6fire_control_destroy(struct sfire_chip *chip); #endif /* USB6FIRE_CONTROL_H */ 'switch'/> net-next plumbingsTobias Klauser
summaryrefslogtreecommitdiff
path: root/sound/soc/tegra/Kconfig
diff options
context:
space:
mode:
authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /sound/soc/tegra/Kconfig
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/tegra/Kconfig')