1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * skl-i2s.h - i2s blob mapping
5 * Copyright (C) 2017 Intel Corp
6 * Author: Subhransu S. Prusty < subhransu.s.prusty@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 #ifndef __SOUND_SOC_SKL_I2S_H
13 #define __SOUND_SOC_SKL_I2S_H
15 #define SKL_I2S_MAX_TIME_SLOTS 8
16 #define SKL_MCLK_DIV_CLK_SRC_MASK GENMASK(17, 16)
18 #define SKL_MNDSS_DIV_CLK_SRC_MASK GENMASK(21, 20)
19 #define SKL_SHIFT(x) (ffs(x) - 1)
20 #define SKL_MCLK_DIV_RATIO_MASK GENMASK(11, 0)
22 #define is_legacy_blob(x) (x.signature != 0xEE)
23 #define ext_to_legacy_blob(i2s_config_blob_ext) \
24 ((struct skl_i2s_config_blob_legacy *) i2s_config_blob_ext)
26 #define get_clk_src(mclk, mask) \
27 ((mclk.mdivctrl & mask) >> SKL_SHIFT(mask))
28 struct skl_i2s_config {
41 struct skl_i2s_config_mclk {
46 struct skl_i2s_config_mclk_ext {
52 struct skl_i2s_config_blob_signature {
59 struct skl_i2s_config_blob_header {
60 struct skl_i2s_config_blob_signature sig;
65 * struct skl_i2s_config_blob_legacy - Structure defines I2S Gateway
66 * configuration legacy blob
68 * @gtw_attr: Gateway attribute for the I2S Gateway
69 * @tdm_ts_group: TDM slot mapping against channels in the Gateway.
70 * @i2s_cfg: I2S HW registers
71 * @mclk: MCLK clock source and divider values
73 struct skl_i2s_config_blob_legacy {
75 u32 tdm_ts_group[SKL_I2S_MAX_TIME_SLOTS];
76 struct skl_i2s_config i2s_cfg;
77 struct skl_i2s_config_mclk mclk;
80 struct skl_i2s_config_blob_ext {
82 struct skl_i2s_config_blob_header hdr;
83 u32 tdm_ts_group[SKL_I2S_MAX_TIME_SLOTS];
84 struct skl_i2s_config i2s_cfg;
85 struct skl_i2s_config_mclk_ext mclk;
87 #endif /* __SOUND_SOC_SKL_I2S_H */