diff options
Diffstat (limited to 'sound/soc/intel/skylake/skl-nhlt.c')
-rw-r--r-- | sound/soc/intel/skylake/skl-nhlt.c | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c deleted file mode 100644 index e617b4c335a4..000000000000 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ /dev/null @@ -1,269 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * skl-nhlt.c - Intel SKL Platform NHLT parsing - * - * Copyright (C) 2015 Intel Corp - * Author: Sanjiv Kumar <sanjiv.kumar@intel.com> - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ -#include <linux/pci.h> -#include <sound/intel-nhlt.h> -#include "skl.h" -#include "skl-i2s.h" - -static void skl_nhlt_trim_space(char *trim) -{ - char *s = trim; - int cnt; - int i; - - cnt = 0; - for (i = 0; s[i]; i++) { - if (!isspace(s[i])) - s[cnt++] = s[i]; - } - - s[cnt] = '\0'; -} - -int skl_nhlt_update_topology_bin(struct skl_dev *skl) -{ - struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt; - struct hdac_bus *bus = skl_to_bus(skl); - struct device *dev = bus->dev; - - dev_dbg(dev, "oem_id %.6s, oem_table_id %.8s oem_revision %d\n", - nhlt->header.oem_id, nhlt->header.oem_table_id, - nhlt->header.oem_revision); - - snprintf(skl->tplg_name, sizeof(skl->tplg_name), "%x-%.6s-%.8s-%d%s", - skl->pci_id, nhlt->header.oem_id, nhlt->header.oem_table_id, - nhlt->header.oem_revision, "-tplg.bin"); - - skl_nhlt_trim_space(skl->tplg_name); - - return 0; -} - -static ssize_t platform_id_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct pci_dev *pci = to_pci_dev(dev); - struct hdac_bus *bus = pci_get_drvdata(pci); - struct skl_dev *skl = bus_to_skl(bus); - struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt; - char platform_id[32]; - - sprintf(platform_id, "%x-%.6s-%.8s-%d", skl->pci_id, - nhlt->header.oem_id, nhlt->header.oem_table_id, - nhlt->header.oem_revision); - - skl_nhlt_trim_space(platform_id); - return sysfs_emit(buf, "%s\n", platform_id); -} - -static DEVICE_ATTR_RO(platform_id); - -int skl_nhlt_create_sysfs(struct skl_dev *skl) -{ - struct device *dev = &skl->pci->dev; - - if (sysfs_create_file(&dev->kobj, &dev_attr_platform_id.attr)) - dev_warn(dev, "Error creating sysfs entry\n"); - - return 0; -} - -void skl_nhlt_remove_sysfs(struct skl_dev *skl) -{ - struct device *dev = &skl->pci->dev; - - if (skl->nhlt) - sysfs_remove_file(&dev->kobj, &dev_attr_platform_id.attr); -} - -/* - * Queries NHLT for all the fmt configuration for a particular endpoint and - * stores all possible rates supported in a rate table for the corresponding - * sclk/sclkfs. - */ -static void skl_get_ssp_clks(struct skl_dev *skl, struct skl_ssp_clk *ssp_clks, - struct nhlt_fmt *fmt, u8 id) -{ - struct skl_i2s_config_blob_ext *i2s_config_ext; - struct skl_i2s_config_blob_legacy *i2s_config; - struct skl_clk_parent_src *parent; - struct skl_ssp_clk *sclk, *sclkfs; - struct nhlt_fmt_cfg *fmt_cfg; - struct wav_fmt_ext *wav_fmt; - unsigned long rate; - int rate_index = 0; - u16 channels, bps; - u8 clk_src; - int i, j; - u32 fs; - - sclk = &ssp_clks[SKL_SCLK_OFS]; - sclkfs = &ssp_clks[SKL_SCLKFS_OFS]; - - if (fmt->fmt_count == 0) - return; - - fmt_cfg = (struct nhlt_fmt_cfg *)fmt->fmt_config; - for (i = 0; i < fmt->fmt_count; i++) { - struct nhlt_fmt_cfg *saved_fmt_cfg = fmt_cfg; - bool present = false; - - wav_fmt = &saved_fmt_cfg->fmt_ext; - - channels = wav_fmt->fmt.channels; - bps = wav_fmt->fmt.bits_per_sample; - fs = wav_fmt->fmt.samples_per_sec; - - /* - * In case of TDM configuration on a ssp, there can - * be more than one blob in which channel masks are - * different for each usecase for a specific rate and bps. - * But the sclk rate will be generated for the total - * number of channels used for that endpoint. - * - * So for the given fs and bps, choose blob which has - * the superset of all channels for that endpoint and - * derive the rate. - */ - for (j = i; j < fmt->fmt_count; j++) { - struct nhlt_fmt_cfg *tmp_fmt_cfg = fmt_cfg; - - wav_fmt = &tmp_fmt_cfg->fmt_ext; - if ((fs == wav_fmt->fmt.samples_per_sec) && - (bps == wav_fmt->fmt.bits_per_sample)) { - channels = max_t(u16, channels, - wav_fmt->fmt.channels); - saved_fmt_cfg = tmp_fmt_cfg; - } - /* Move to the next nhlt_fmt_cfg */ - tmp_fmt_cfg = (struct nhlt_fmt_cfg *)(tmp_fmt_cfg->config.caps + - tmp_fmt_cfg->config.size); - } - - rate = channels * bps * fs; - - /* check if the rate is added already to the given SSP's sclk */ - for (j = 0; (j < SKL_MAX_CLK_RATES) && - (sclk[id].rate_cfg[j].rate != 0); j++) { - if (sclk[id].rate_cfg[j].rate == rate) { - present = true; - break; - } - } - - /* Fill rate and parent for sclk/sclkfs */ - if (!present) { - struct nhlt_fmt_cfg *first_fmt_cfg; - - first_fmt_cfg = (struct nhlt_fmt_cfg *)fmt->fmt_config; - i2s_config_ext = (struct skl_i2s_config_blob_ext *) - first_fmt_cfg->config.caps; - - /* MCLK Divider Source Select */ - if (is_legacy_blob(i2s_config_ext->hdr.sig)) { - i2s_config = ext_to_legacy_blob(i2s_config_ext); - clk_src = get_clk_src(i2s_config->mclk, - SKL_MNDSS_DIV_CLK_SRC_MASK); - } else { - clk_src = get_clk_src(i2s_config_ext->mclk, - SKL_MNDSS_DIV_CLK_SRC_MASK); - } - - parent = skl_get_parent_clk(clk_src); - - /* Move to the next nhlt_fmt_cfg */ - fmt_cfg = (struct nhlt_fmt_cfg *)(fmt_cfg->config.caps + - fmt_cfg->config.size); - /* - * Do not copy the config data if there is no parent - * clock available for this clock source select - */ - if (!parent) - continue; - - sclk[id].rate_cfg[rate_index].rate = rate; - sclk[id].rate_cfg[rate_index].config = saved_fmt_cfg; - sclkfs[id].rate_cfg[rate_index].rate = rate; - sclkfs[id].rate_cfg[rate_index].config = saved_fmt_cfg; - sclk[id].parent_name = parent->name; - sclkfs[id].parent_name = parent->name; - - rate_index++; - } - } -} - -static void skl_get_mclk(struct skl_dev *skl, struct skl_ssp_clk *mclk, - struct nhlt_fmt *fmt, u8 id) -{ - struct skl_i2s_config_blob_ext *i2s_config_ext; - struct skl_i2s_config_blob_legacy *i2s_config; - struct nhlt_fmt_cfg *fmt_cfg; - struct skl_clk_parent_src *parent; - u32 clkdiv, div_ratio; - u8 clk_src; - - fmt_cfg = (struct nhlt_fmt_cfg *)fmt->fmt_config; - i2s_config_ext = (struct skl_i2s_config_blob_ext *)fmt_cfg->config.caps; - - /* MCLK Divider Source Select and divider */ - if (is_legacy_blob(i2s_config_ext->hdr.sig)) { - i2s_config = ext_to_legacy_blob(i2s_config_ext); - clk_src = get_clk_src(i2s_config->mclk, - SKL_MCLK_DIV_CLK_SRC_MASK); - clkdiv = i2s_config->mclk.mdivr & - SKL_MCLK_DIV_RATIO_MASK; - } else { - clk_src = get_clk_src(i2s_config_ext->mclk, - SKL_MCLK_DIV_CLK_SRC_MASK); - clkdiv = i2s_config_ext->mclk.mdivr[0] & - SKL_MCLK_DIV_RATIO_MASK; - } - - /* bypass divider */ - div_ratio = 1; - - if (clkdiv != SKL_MCLK_DIV_RATIO_MASK) - /* Divider is 2 + clkdiv */ - div_ratio = clkdiv + 2; - - /* Calculate MCLK rate from source using div value */ - parent = skl_get_parent_clk(clk_src); - if (!parent) - return; - - mclk[id].rate_cfg[0].rate = parent->rate/div_ratio; - mclk[id].rate_cfg[0].config = fmt_cfg; - mclk[id].parent_name = parent->name; -} - -void skl_get_clks(struct skl_dev *skl, struct skl_ssp_clk *ssp_clks) -{ - struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt; - struct nhlt_endpoint *epnt; - struct nhlt_fmt *fmt; - int i; - u8 id; - - epnt = (struct nhlt_endpoint *)nhlt->desc; - for (i = 0; i < nhlt->endpoint_count; i++) { - if (epnt->linktype == NHLT_LINK_SSP) { - id = epnt->virtual_bus_id; - - fmt = (struct nhlt_fmt *)(epnt->config.caps - + epnt->config.size); - - skl_get_ssp_clks(skl, ssp_clks, fmt, id); - skl_get_mclk(skl, ssp_clks, fmt, id); - } - epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length); - } -} |