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2c92e2fbe9
The copied_total field in struct snd_compr_tstamp is a 32-bit value that can overflow on long-running high-bitrate streams, leading to incorrect calculations for buffer availablility. This patch adds a 64-bit safe timestamping mechanism. A new UAPI struct, snd_compr_tstamp64, is added which uses 64-bit types for byte counters. The relevant ops structures across the ASoC and core compress code are updated to use this new struct. ASoC drivers are updated to use u64 counters. Internal timestamps being u64 now, a compatibility function is added to convert the 64-bit timestamp back to the 32-bit format for legacy ioctl callers. Reviewed-by: Miller Liang <millerliang@google.com> Tested-by: Joris Verhaegen <verhaegen@google.com> Signed-off-by: Joris Verhaegen <verhaegen@google.com> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250905091301.2711705-2-verhaegen@google.com
65 lines
2 KiB
C
65 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __SOF_CLIENT_PROBES_H
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#define __SOF_CLIENT_PROBES_H
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struct snd_compr_stream;
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struct snd_compr_tstamp64;
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struct snd_compr_params;
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struct sof_client_dev;
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struct snd_soc_dai;
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/*
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* Callbacks used on platforms where the control for audio is split between
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* DSP and host, like HDA.
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*/
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struct sof_probes_host_ops {
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int (*startup)(struct sof_client_dev *cdev, struct snd_compr_stream *cstream,
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struct snd_soc_dai *dai, u32 *stream_id);
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int (*shutdown)(struct sof_client_dev *cdev, struct snd_compr_stream *cstream,
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struct snd_soc_dai *dai);
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int (*set_params)(struct sof_client_dev *cdev, struct snd_compr_stream *cstream,
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struct snd_compr_params *params,
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struct snd_soc_dai *dai);
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int (*trigger)(struct sof_client_dev *cdev, struct snd_compr_stream *cstream,
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int cmd, struct snd_soc_dai *dai);
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int (*pointer)(struct sof_client_dev *cdev, struct snd_compr_stream *cstream,
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struct snd_compr_tstamp64 *tstamp,
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struct snd_soc_dai *dai);
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};
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struct sof_probe_point_desc {
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unsigned int buffer_id;
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unsigned int purpose;
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unsigned int stream_tag;
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} __packed;
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struct sof_probes_ipc_ops {
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int (*init)(struct sof_client_dev *cdev, u32 stream_tag,
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size_t buffer_size);
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int (*deinit)(struct sof_client_dev *cdev);
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int (*points_info)(struct sof_client_dev *cdev,
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struct sof_probe_point_desc **desc,
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size_t *num_desc);
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int (*points_add)(struct sof_client_dev *cdev,
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struct sof_probe_point_desc *desc,
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size_t num_desc);
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int (*points_remove)(struct sof_client_dev *cdev,
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unsigned int *buffer_id, size_t num_buffer_id);
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};
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extern const struct sof_probes_ipc_ops ipc3_probe_ops;
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extern const struct sof_probes_ipc_ops ipc4_probe_ops;
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struct sof_probes_priv {
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struct dentry *dfs_points;
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struct dentry *dfs_points_remove;
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u32 extractor_stream_tag;
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struct snd_soc_card card;
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void *ipc_priv;
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const struct sof_probes_host_ops *host_ops;
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const struct sof_probes_ipc_ops *ipc_ops;
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};
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#endif
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