225 lines
6.1 KiB
C
225 lines
6.1 KiB
C
/*
|
|
* skl-nhlt.c - Intel SKL Platform NHLT parsing
|
|
*
|
|
* Copyright (C) 2015 Intel Corp
|
|
* Author: Sanjiv Kumar <sanjiv.kumar@intel.com>
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*
|
|
* 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.
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*
|
|
*/
|
|
#include <linux/pci.h>
|
|
#include "skl.h"
|
|
|
|
/* Unique identification for getting NHLT blobs */
|
|
static u8 OSC_UUID[16] = {0x6E, 0x88, 0x9F, 0xA6, 0xEB, 0x6C, 0x94, 0x45,
|
|
0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53};
|
|
|
|
#define DSDT_NHLT_PATH "\\_SB.PCI0.HDAS"
|
|
|
|
struct nhlt_acpi_table *skl_nhlt_init(struct device *dev)
|
|
{
|
|
acpi_handle handle;
|
|
union acpi_object *obj;
|
|
struct nhlt_resource_desc *nhlt_ptr = NULL;
|
|
struct nhlt_acpi_table *nhlt_table = NULL;
|
|
|
|
if (ACPI_FAILURE(acpi_get_handle(NULL, DSDT_NHLT_PATH, &handle))) {
|
|
dev_err(dev, "Requested NHLT device not found\n");
|
|
return NULL;
|
|
}
|
|
|
|
obj = acpi_evaluate_dsm(handle, OSC_UUID, 1, 1, NULL);
|
|
if (obj && obj->type == ACPI_TYPE_BUFFER) {
|
|
nhlt_ptr = (struct nhlt_resource_desc *)obj->buffer.pointer;
|
|
nhlt_table = (struct nhlt_acpi_table *)
|
|
memremap(nhlt_ptr->min_addr, nhlt_ptr->length,
|
|
MEMREMAP_WB);
|
|
ACPI_FREE(obj);
|
|
return nhlt_table;
|
|
}
|
|
|
|
dev_err(dev, "device specific method to extract NHLT blob failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
void skl_nhlt_free(struct nhlt_acpi_table *nhlt)
|
|
{
|
|
memunmap((void *) nhlt);
|
|
}
|
|
|
|
static struct nhlt_specific_cfg *skl_get_specific_cfg(
|
|
struct device *dev, struct nhlt_fmt *fmt,
|
|
u8 no_ch, u32 rate, u16 bps, u8 linktype)
|
|
{
|
|
struct nhlt_specific_cfg *sp_config;
|
|
struct wav_fmt *wfmt;
|
|
struct nhlt_fmt_cfg *fmt_config = fmt->fmt_config;
|
|
int i;
|
|
|
|
dev_dbg(dev, "Format count =%d\n", fmt->fmt_count);
|
|
|
|
for (i = 0; i < fmt->fmt_count; i++) {
|
|
wfmt = &fmt_config->fmt_ext.fmt;
|
|
dev_dbg(dev, "ch=%d fmt=%d s_rate=%d\n", wfmt->channels,
|
|
wfmt->bits_per_sample, wfmt->samples_per_sec);
|
|
if (wfmt->channels == no_ch && wfmt->bits_per_sample == bps) {
|
|
/*
|
|
* if link type is dmic ignore rate check as the blob is
|
|
* generic for all rates
|
|
*/
|
|
sp_config = &fmt_config->config;
|
|
if (linktype == NHLT_LINK_DMIC)
|
|
return sp_config;
|
|
|
|
if (wfmt->samples_per_sec == rate)
|
|
return sp_config;
|
|
}
|
|
|
|
fmt_config = (struct nhlt_fmt_cfg *)(fmt_config->config.caps +
|
|
fmt_config->config.size);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void dump_config(struct device *dev, u32 instance_id, u8 linktype,
|
|
u8 s_fmt, u8 num_channels, u32 s_rate, u8 dirn, u16 bps)
|
|
{
|
|
dev_dbg(dev, "Input configuration\n");
|
|
dev_dbg(dev, "ch=%d fmt=%d s_rate=%d\n", num_channels, s_fmt, s_rate);
|
|
dev_dbg(dev, "vbus_id=%d link_type=%d\n", instance_id, linktype);
|
|
dev_dbg(dev, "bits_per_sample=%d\n", bps);
|
|
}
|
|
|
|
static bool skl_check_ep_match(struct device *dev, struct nhlt_endpoint *epnt,
|
|
u32 instance_id, u8 link_type, u8 dirn)
|
|
{
|
|
dev_dbg(dev, "vbus_id=%d link_type=%d dir=%d\n",
|
|
epnt->virtual_bus_id, epnt->linktype, epnt->direction);
|
|
|
|
if ((epnt->virtual_bus_id == instance_id) &&
|
|
(epnt->linktype == link_type) &&
|
|
(epnt->direction == dirn))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
struct nhlt_specific_cfg
|
|
*skl_get_ep_blob(struct skl *skl, u32 instance, u8 link_type,
|
|
u8 s_fmt, u8 num_ch, u32 s_rate, u8 dirn)
|
|
{
|
|
struct nhlt_fmt *fmt;
|
|
struct nhlt_endpoint *epnt;
|
|
struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
|
|
struct device *dev = bus->dev;
|
|
struct nhlt_specific_cfg *sp_config;
|
|
struct nhlt_acpi_table *nhlt = skl->nhlt;
|
|
u16 bps = (s_fmt == 16) ? 16 : 32;
|
|
u8 j;
|
|
|
|
dump_config(dev, instance, link_type, s_fmt, num_ch, s_rate, dirn, bps);
|
|
|
|
epnt = (struct nhlt_endpoint *)nhlt->desc;
|
|
|
|
dev_dbg(dev, "endpoint count =%d\n", nhlt->endpoint_count);
|
|
|
|
for (j = 0; j < nhlt->endpoint_count; j++) {
|
|
if (skl_check_ep_match(dev, epnt, instance, link_type, dirn)) {
|
|
fmt = (struct nhlt_fmt *)(epnt->config.caps +
|
|
epnt->config.size);
|
|
sp_config = skl_get_specific_cfg(dev, fmt, num_ch,
|
|
s_rate, bps, link_type);
|
|
if (sp_config)
|
|
return sp_config;
|
|
}
|
|
|
|
epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int skl_get_dmic_geo(struct skl *skl)
|
|
{
|
|
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
|
|
struct nhlt_endpoint *epnt;
|
|
struct nhlt_dmic_array_config *cfg;
|
|
struct device *dev = &skl->pci->dev;
|
|
unsigned int dmic_geo = 0;
|
|
u8 j;
|
|
|
|
epnt = (struct nhlt_endpoint *)nhlt->desc;
|
|
|
|
for (j = 0; j < nhlt->endpoint_count; j++) {
|
|
if (epnt->linktype == NHLT_LINK_DMIC) {
|
|
cfg = (struct nhlt_dmic_array_config *)
|
|
(epnt->config.caps);
|
|
switch (cfg->array_type) {
|
|
case NHLT_MIC_ARRAY_2CH_SMALL:
|
|
case NHLT_MIC_ARRAY_2CH_BIG:
|
|
dmic_geo |= MIC_ARRAY_2CH;
|
|
break;
|
|
|
|
case NHLT_MIC_ARRAY_4CH_1ST_GEOM:
|
|
case NHLT_MIC_ARRAY_4CH_L_SHAPED:
|
|
case NHLT_MIC_ARRAY_4CH_2ND_GEOM:
|
|
dmic_geo |= MIC_ARRAY_4CH;
|
|
break;
|
|
|
|
default:
|
|
dev_warn(dev, "undefined DMIC array_type 0x%0x\n",
|
|
cfg->array_type);
|
|
|
|
}
|
|
}
|
|
epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
|
|
}
|
|
|
|
return dmic_geo;
|
|
}
|
|
|
|
static void skl_nhlt_trim_space(struct skl *skl)
|
|
{
|
|
char *s = skl->tplg_name;
|
|
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 *skl)
|
|
{
|
|
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
|
|
struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
|
|
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);
|
|
|
|
return 0;
|
|
}
|