mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 07:34:06 +08:00
4b206d34b9
The SoundWire DAIs for Intel platform are created in drivers/soundwire/intel.c, while the communication with the Intel DSP is all controlled in soc/sof/intel When the DAI status changes, a callback is used to bridge the gap between the two subsystems. The naming of the existing 'config_stream' callback does not map well with any of ALSA/ASoC concepts. This patch renames it as 'params_stream' to be more self-explanatory. A new 'free_stream' callback is added in case any resources allocated in the 'params_stream' stage need to be released. In the SOF implementation, this is used in the hw_free case to release the DMA channels over IPC. These two callbacks now rely on structures which expose the link_id and alh_stream_id (required by the firmware IPC), instead of a list of parameters. The 'void *' definitions are changed to use explicit types, as suggested on alsa-devel during earlier reviews. Signed-off-by: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191212014507.28050-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
31 lines
876 B
C
31 lines
876 B
C
/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
|
|
/* Copyright(c) 2015-17 Intel Corporation. */
|
|
|
|
#ifndef __SDW_INTEL_LOCAL_H
|
|
#define __SDW_INTEL_LOCAL_H
|
|
|
|
/**
|
|
* struct sdw_intel_link_res - Soundwire Intel link resource structure,
|
|
* typically populated by the controller driver.
|
|
* @pdev: platform_device
|
|
* @mmio_base: mmio base of SoundWire registers
|
|
* @registers: Link IO registers base
|
|
* @shim: Audio shim pointer
|
|
* @alh: ALH (Audio Link Hub) pointer
|
|
* @irq: Interrupt line
|
|
* @ops: Shim callback ops
|
|
* @dev: device implementing hw_params and free callbacks
|
|
*/
|
|
struct sdw_intel_link_res {
|
|
struct platform_device *pdev;
|
|
void __iomem *mmio_base; /* not strictly needed, useful for debug */
|
|
void __iomem *registers;
|
|
void __iomem *shim;
|
|
void __iomem *alh;
|
|
int irq;
|
|
const struct sdw_intel_ops *ops;
|
|
struct device *dev;
|
|
};
|
|
|
|
#endif /* __SDW_INTEL_LOCAL_H */
|