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Based on 1 normalized pattern(s): 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 version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 100 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.918357685@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* skl-i2s.h - i2s blob mapping
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*
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* Copyright (C) 2017 Intel Corp
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* Author: Subhransu S. Prusty < subhransu.s.prusty@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#ifndef __SOUND_SOC_SKL_I2S_H
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#define __SOUND_SOC_SKL_I2S_H
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#define SKL_I2S_MAX_TIME_SLOTS 8
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#define SKL_MCLK_DIV_CLK_SRC_MASK GENMASK(17, 16)
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#define SKL_MNDSS_DIV_CLK_SRC_MASK GENMASK(21, 20)
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#define SKL_SHIFT(x) (ffs(x) - 1)
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#define SKL_MCLK_DIV_RATIO_MASK GENMASK(11, 0)
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#define is_legacy_blob(x) (x.signature != 0xEE)
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#define ext_to_legacy_blob(i2s_config_blob_ext) \
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((struct skl_i2s_config_blob_legacy *) i2s_config_blob_ext)
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#define get_clk_src(mclk, mask) \
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((mclk.mdivctrl & mask) >> SKL_SHIFT(mask))
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struct skl_i2s_config {
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u32 ssc0;
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u32 ssc1;
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u32 sscto;
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u32 sspsp;
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u32 sstsa;
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u32 ssrsa;
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u32 ssc2;
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u32 sspsp2;
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u32 ssc3;
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u32 ssioc;
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} __packed;
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struct skl_i2s_config_mclk {
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u32 mdivctrl;
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u32 mdivr;
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};
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struct skl_i2s_config_mclk_ext {
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u32 mdivctrl;
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u32 mdivr_count;
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u32 mdivr[0];
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} __packed;
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struct skl_i2s_config_blob_signature {
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u32 minor_ver : 8;
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u32 major_ver : 8;
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u32 resvdz : 8;
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u32 signature : 8;
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} __packed;
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struct skl_i2s_config_blob_header {
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struct skl_i2s_config_blob_signature sig;
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u32 size;
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};
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/**
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* struct skl_i2s_config_blob_legacy - Structure defines I2S Gateway
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* configuration legacy blob
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*
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* @gtw_attr: Gateway attribute for the I2S Gateway
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* @tdm_ts_group: TDM slot mapping against channels in the Gateway.
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* @i2s_cfg: I2S HW registers
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* @mclk: MCLK clock source and divider values
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*/
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struct skl_i2s_config_blob_legacy {
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u32 gtw_attr;
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u32 tdm_ts_group[SKL_I2S_MAX_TIME_SLOTS];
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struct skl_i2s_config i2s_cfg;
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struct skl_i2s_config_mclk mclk;
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};
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struct skl_i2s_config_blob_ext {
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u32 gtw_attr;
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struct skl_i2s_config_blob_header hdr;
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u32 tdm_ts_group[SKL_I2S_MAX_TIME_SLOTS];
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struct skl_i2s_config i2s_cfg;
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struct skl_i2s_config_mclk_ext mclk;
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} __packed;
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#endif /* __SOUND_SOC_SKL_I2S_H */
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