// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* hda_intel.c - Implementation of primary alsa driver code base
* for Intel HD Audio.
*
* Copyright(c) 2004 Intel Corporation
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
* PeiSen Hou <pshou@realtek.com.tw>
*
* CONTACTS:
*
* Matt Jared matt.jared@intel.com
* Andy Kopp andy.kopp@intel.com
* Dan Kogan dan.d.kogan@intel.com
*
* CHANGES:
*
* 2004.12.01 Major rewrite by tiwai, merged the work of pshou
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <linux/clocksource.h>
#include <linux/time.h>
#include <linux/completion.h>
#include <linux/acpi.h>
#include <linux/pgtable.h>
#include <linux/dmi.h>
#ifdef CONFIG_X86
/* for snoop control */
#include <
asm/set_memory.h>
#include <
asm/cpufeature.h>
#endif
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/hdaudio.h>
#include <sound/hda_i915.h>
#include <sound/intel-dsp-config.h>
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <linux/apple-gmux.h>
#include <linux/firmware.h>
#include <sound/hda_codec.h>
#include "intel.h"
#define CREATE_TRACE_POINTS
#include "intel_trace.h"
/* position fix mode */
enum {
POS_FIX_AUTO,
POS_FIX_LPIB,
POS_FIX_POSBUF,
POS_FIX_VIACOMBO,
POS_FIX_COMBO,
POS_FIX_SKL,
POS_FIX_FIFO,
};
/* Defines for ATI HD Audio support in SB450 south bridge */
#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
#define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
/* Defines for Nvidia HDA support */
#define NVIDIA_HDA_TRANSREG_ADDR 0x4e
#define NVIDIA_HDA_ENABLE_COHBITS 0x0f
#define NVIDIA_HDA_ISTRM_COH 0x4d
#define NVIDIA_HDA_OSTRM_COH 0x4c
#define NVIDIA_HDA_ENABLE_COHBIT 0x01
/* Defines for Intel SCH HDA snoop control */
#define INTEL_HDA_CGCTL 0x48
#define INTEL_HDA_CGCTL_MISCBDCGE (0x1 << 6)
#define INTEL_SCH_HDA_DEVC 0x78
#define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
/* max number of SDs */
/* ICH, ATI and VIA have 4 playback and 4 capture */
#define ICH6_NUM_CAPTURE 4
#define ICH6_NUM_PLAYBACK 4
/* ULI has 6 playback and 5 capture */
#define ULI_NUM_CAPTURE 5
#define ULI_NUM_PLAYBACK 6
/* ATI HDMI may have up to 8 playbacks and 0 capture */
#define ATIHDMI_NUM_CAPTURE 0
#define ATIHDMI_NUM_PLAYBACK 8
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_only[SNDRV_CARDS];
static int jackpoll_ms[SNDRV_CARDS];
static int single_cmd = -1;
static int enable_msi = -1;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
static char *patch[SNDRV_CARDS];
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
CONFIG_SND_HDA_INPUT_BEEP_MODE};
#endif
static bool dmic_detect = 1;
static bool ctl_dev_id = IS_ENABLED(CONFIG_SND_HDA_CTL_DEV_ID) ? 1 : 0;
module_param_array(index,
int, NULL, 0444);
MODULE_PARM_DESC(index,
"Index value for Intel HD audio interface.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id,
"ID string for Intel HD audio interface.");
module_param_array(enable,
bool, NULL, 0444);
MODULE_PARM_DESC(enable,
"Enable Intel HD audio interface.");
module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model,
"Use the given board model.");
module_param_array(position_fix,
int, NULL, 0444);
MODULE_PARM_DESC(position_fix,
"DMA pointer read method."
"(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
module_param_array(bdl_pos_adj,
int, NULL, 0644);
MODULE_PARM_DESC(bdl_pos_adj,
"BDL position adjustment offset.");
module_param_array(probe_mask,
int, NULL, 0444);
MODULE_PARM_DESC(probe_mask,
"Bitmask to probe codecs (default = -1).");
module_param_array(probe_only,
int, NULL, 0444);
MODULE_PARM_DESC(probe_only,
"Only probing and no codec initialization.");
module_param_array(jackpoll_ms,
int, NULL, 0444);
MODULE_PARM_DESC(jackpoll_ms,
"Ms between polling for jack events (default = 0, using unsol events only)");
module_param(single_cmd, bint, 0444);
MODULE_PARM_DESC(single_cmd,
"Use single command to communicate with codecs "
"(for debugging only).");
module_param(enable_msi, bint, 0444);
MODULE_PARM_DESC(enable_msi,
"Enable Message Signaled Interrupt (MSI)");
#ifdef CONFIG_SND_HDA_PATCH_LOADER
module_param_array(patch, charp, NULL, 0444);
MODULE_PARM_DESC(patch,
"Patch file for Intel HD audio interface.");
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
module_param_array(beep_mode,
bool, NULL, 0444);
MODULE_PARM_DESC(beep_mode,
"Select HDA Beep registration mode "
"(0=off, 1=on) (default=1).");
#endif
module_param(dmic_detect,
bool, 0444);
MODULE_PARM_DESC(dmic_detect,
"Allow DSP driver selection (bypass this driver) "
"(0=off, 1=on) (default=1); "
"deprecated, use snd-intel-dspcfg.dsp_driver option instead");
module_param(ctl_dev_id,
bool, 0444);
MODULE_PARM_DESC(ctl_dev_id,
"Use control device identifier (based on codec address).");
#ifdef CONFIG_PM
static int param_set_xint(
const char *val,
const struct kernel_param *kp);
static const struct kernel_param_ops param_ops_xint = {
.set = param_set_xint,
.get = param_get_int,
};
#define param_check_xint param_check_int
static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
module_param(power_save, xint, 0644);
MODULE_PARM_DESC(power_save,
"Automatic power-saving timeout "
"(in second, 0 = disable).");
static int pm_blacklist = -1;
module_param(pm_blacklist, bint, 0644);
MODULE_PARM_DESC(pm_blacklist,
"Enable power-management denylist");
/* reset the HD-audio controller in power save mode.
* this may give more power-saving, but will take longer time to
* wake up.
*/
static bool power_save_controller = 1;
module_param(power_save_controller,
bool, 0644);
MODULE_PARM_DESC(power_save_controller,
"Reset controller in power save mode.");
#else /* CONFIG_PM */
#define power_save 0
#define pm_blacklist 0
#define power_save_controller
false
#endif /* CONFIG_PM */
static int align_buffer_size = -1;
module_param(align_buffer_size, bint, 0644);
MODULE_PARM_DESC(align_buffer_size,
"Force buffer and period sizes to be multiple of 128 bytes.");
#ifdef CONFIG_X86
static int hda_snoop = -1;
module_param_named(snoop, hda_snoop, bint, 0444);
MODULE_PARM_DESC(snoop,
"Enable/disable snooping");
#else
#define hda_snoop
true
#endif
MODULE_LICENSE(
"GPL");
MODULE_DESCRIPTION(
"Intel HDA driver");
#if defined(CONFIG_PM) &&
defined(CONFIG_VGA_SWITCHEROO)
#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
#define SUPPORT_VGA_SWITCHEROO
#endif
#endif
/*
*/
/* driver types */
enum {
AZX_DRIVER_ICH,
AZX_DRIVER_PCH,
AZX_DRIVER_SCH,
AZX_DRIVER_SKL,
AZX_DRIVER_HDMI,
AZX_DRIVER_ATI,
AZX_DRIVER_ATIHDMI,
AZX_DRIVER_ATIHDMI_NS,
AZX_DRIVER_GFHDMI,
AZX_DRIVER_VIA,
AZX_DRIVER_SIS,
AZX_DRIVER_ULI,
AZX_DRIVER_NVIDIA,
AZX_DRIVER_TERA,
AZX_DRIVER_CTX,
AZX_DRIVER_CTHDA,
AZX_DRIVER_CMEDIA,
AZX_DRIVER_ZHAOXIN,
AZX_DRIVER_ZHAOXINHDMI,
AZX_DRIVER_LOONGSON,
AZX_DRIVER_GENERIC,
AZX_NUM_DRIVERS,
/* keep this as last entry */
};
#define azx_get_snoop_type(chip) \
(((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
#define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_
## type) << 10)
/* quirks for old Intel chipsets */
#define AZX_DCAPS_INTEL_ICH \
(AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
/* quirks for Intel PCH */
#define AZX_DCAPS_INTEL_PCH_BASE \
(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
AZX_DCAPS_SNOOP_TYPE(SCH))
/* PCH up to IVB; no runtime PM; bind with i915 gfx */
#define AZX_DCAPS_INTEL_PCH_NOPM \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
/* PCH for HSW/BDW; with runtime PM */
/* no i915 binding for this as HSW/BDW has another controller for HDMI */
#define AZX_DCAPS_INTEL_PCH \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
/* HSW HDMI */
#define AZX_DCAPS_INTEL_HASWELL \
(
/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
AZX_DCAPS_SNOOP_TYPE(SCH))
/* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
#define AZX_DCAPS_INTEL_BROADWELL \
(
/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
AZX_DCAPS_SNOOP_TYPE(SCH))
#define AZX_DCAPS_INTEL_BAYTRAIL \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
#define AZX_DCAPS_INTEL_BRASWELL \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
AZX_DCAPS_I915_COMPONENT)
#define AZX_DCAPS_INTEL_SKYLAKE \
(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
#define AZX_DCAPS_INTEL_BROXTON AZX_DCAPS_INTEL_SKYLAKE
#define AZX_DCAPS_INTEL_LNL \
(AZX_DCAPS_INTEL_SKYLAKE | AZX_DCAPS_PIO_COMMANDS)
/* quirks for ATI SB / AMD Hudson */
#define AZX_DCAPS_PRESET_ATI_SB \
(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\
AZX_DCAPS_SNOOP_TYPE(ATI))
/* quirks for ATI/AMD HDMI */
#define AZX_DCAPS_PRESET_ATI_HDMI \
(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB|\
AZX_DCAPS_NO_MSI64)
/* quirks for ATI HDMI with snoop off */
#define AZX_DCAPS_PRESET_ATI_HDMI_NS \
(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
/* quirks for AMD SB */
#define AZX_DCAPS_PRESET_AMD_SB \
(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
AZX_DCAPS_RETRY_PROBE)
/* quirks for Nvidia */
#define AZX_DCAPS_PRESET_NVIDIA \
(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
AZX_DCAPS_SNOOP_TYPE(NVIDIA))
#define AZX_DCAPS_PRESET_CTHDA \
(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
AZX_DCAPS_NO_64BIT |\
AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
/*
* vga_switcheroo support
*/
#ifdef SUPPORT_VGA_SWITCHEROO
#define use_vga_switcheroo(chip) ((chip)->use_vga_switcheroo)
#define needs_eld_notify_link(chip) ((chip)->bus.keep_power)
#else
#define use_vga_switcheroo(chip) 0
#define needs_eld_notify_link(chip)
false
#endif
static const char *
const driver_short_names[] = {
[AZX_DRIVER_ICH] =
"HDA Intel",
[AZX_DRIVER_PCH] =
"HDA Intel PCH",
[AZX_DRIVER_SCH] =
"HDA Intel MID",
[AZX_DRIVER_SKL] =
"HDA Intel PCH",
/* kept old name for compatibility */
[AZX_DRIVER_HDMI] =
"HDA Intel HDMI",
[AZX_DRIVER_ATI] =
"HDA ATI SB",
[AZX_DRIVER_ATIHDMI] =
"HDA ATI HDMI",
[AZX_DRIVER_ATIHDMI_NS] =
"HDA ATI HDMI",
[AZX_DRIVER_GFHDMI] =
"HDA GF HDMI",
[AZX_DRIVER_VIA] =
"HDA VIA VT82xx",
[AZX_DRIVER_SIS] =
"HDA SIS966",
[AZX_DRIVER_ULI] =
"HDA ULI M5461",
[AZX_DRIVER_NVIDIA] =
"HDA NVidia",
[AZX_DRIVER_TERA] =
"HDA Teradici",
[AZX_DRIVER_CTX] =
"HDA Creative",
[AZX_DRIVER_CTHDA] =
"HDA Creative",
[AZX_DRIVER_CMEDIA] =
"HDA C-Media",
[AZX_DRIVER_ZHAOXIN] =
"HDA Zhaoxin",
[AZX_DRIVER_ZHAOXINHDMI] =
"HDA Zhaoxin HDMI",
[AZX_DRIVER_LOONGSON] =
"HDA Loongson",
[AZX_DRIVER_GENERIC] =
"HD-Audio Generic",
};
static int azx_acquire_irq(
struct azx *chip,
int do_disconnect);
static void set_default_power_save(
struct azx *chip);
/*
* initialize the PCI registers
*/
/* update bits in a PCI register byte */
static void update_pci_byte(
struct pci_dev *pci,
unsigned int reg,
unsigned char mask,
unsigned char val)
{
unsigned char data;
pci_read_config_byte(pci, reg, &data);
data &= ~mask;
data |= (val & mask);
pci_write_config_byte(pci, reg, data);
}
static void azx_init_pci(
struct azx *chip)
{
int snoop_type = azx_get_snoop_type(chip);
/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
* TCSEL == Traffic Class Select Register, which sets PCI express QOS
* Ensuring these bits are 0 clears playback static on some HD Audio
* codecs.
* The PCI register TCSEL is defined in the Intel manuals.
*/
if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
dev_dbg(chip->card->dev,
"Clearing TCSEL\n");
update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
}
/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
* we need to enable snoop.
*/
if (snoop_type == AZX_SNOOP_TYPE_ATI) {
dev_dbg(chip->card->dev,
"Setting ATI snoop: %d\n",
azx_snoop(chip));
update_pci_byte(chip->pci,
ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
}
/* For NVIDIA HDA, enable snoop */
if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
dev_dbg(chip->card->dev,
"Setting Nvidia snoop: %d\n",
azx_snoop(chip));
update_pci_byte(chip->pci,
NVIDIA_HDA_TRANSREG_ADDR,
0x0f, NVIDIA_HDA_ENABLE_COHBITS);
update_pci_byte(chip->pci,
NVIDIA_HDA_ISTRM_COH,
0x01, NVIDIA_HDA_ENABLE_COHBIT);
update_pci_byte(chip->pci,
NVIDIA_HDA_OSTRM_COH,
0x01, NVIDIA_HDA_ENABLE_COHBIT);
}
/* Enable SCH/PCH snoop if needed */
if (snoop_type == AZX_SNOOP_TYPE_SCH) {
unsigned short snoop;
pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
(azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
if (!azx_snoop(chip))
snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
pci_read_config_word(chip->pci,
INTEL_SCH_HDA_DEVC, &snoop);
}
dev_dbg(chip->card->dev,
"SCH snoop: %s\n",
(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
"Disabled" :
"Enabled");
}
}
/*
* In BXT-P A0, HD-Audio DMA requests is later than expected,
* and makes an audio stream sensitive to system latencies when
* 24/32 bits are playing.
* Adjusting threshold of DMA fifo to force the DMA request
* sooner to improve latency tolerance at the expense of power.
*/
static void bxt_reduce_dma_latency(
struct azx *chip)
{
u32 val;
val = azx_readl(chip, VS_EM4L);
val &= (0x3 << 20);
azx_writel(chip, VS_EM4L, val);
}
/*
* ML_LCAP bits:
* bit 0: 6 MHz Supported
* bit 1: 12 MHz Supported
* bit 2: 24 MHz Supported
* bit 3: 48 MHz Supported
* bit 4: 96 MHz Supported
* bit 5: 192 MHz Supported
*/
static int intel_get_lctl_scf(
struct azx *chip)
{
struct hdac_bus *bus = azx_bus(chip);
static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
u32 val, t;
int i;
val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
t = preferred_bits[i];
if (val & (1 << t))
return t;
}
dev_warn(chip->card->dev,
"set audio clock frequency to 6MHz");
return 0;
}
static int intel_ml_lctl_set_power(
struct azx *chip,
int state)
{
struct hdac_bus *bus = azx_bus(chip);
u32 val;
int timeout;
/*
* Changes to LCTL.SCF are only needed for the first multi-link dealing
* with external codecs
*/
val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
val &= ~AZX_ML_LCTL_SPA;
val |= state << AZX_ML_LCTL_SPA_SHIFT;
writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
/* wait for CPA */
timeout = 50;
while (timeout) {
if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
AZX_ML_LCTL_CPA) == (state << AZX_ML_LCTL_CPA_SHIFT))
return 0;
timeout--;
udelay(10);
}
return -1;
}
static void intel_init_lctl(
struct azx *chip)
{
struct hdac_bus *bus = azx_bus(chip);
u32 val;
int ret;
/* 0. check lctl register value is correct or not */
val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
/* only perform additional configurations if the SCF is initially based on 6MHz */
if ((val & AZX_ML_LCTL_SCF) != 0)
return;
/*
* Before operating on SPA, CPA must match SPA.
* Any deviation may result in undefined behavior.
*/
if (((val & AZX_ML_LCTL_SPA) >> AZX_ML_LCTL_SPA_SHIFT) !=
((val & AZX_ML_LCTL_CPA) >> AZX_ML_LCTL_CPA_SHIFT))
return;
/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
ret = intel_ml_lctl_set_power(chip, 0);
udelay(100);
if (ret)
goto set_spa;
/* 2. update SCF to select an audio clock different from 6MHz */
val &= ~AZX_ML_LCTL_SCF;
val |= intel_get_lctl_scf(chip);
writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
set_spa:
/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
intel_ml_lctl_set_power(chip, 1);
udelay(100);
}
static void hda_intel_init_chip(
struct azx *chip,
bool full_reset)
{
struct hdac_bus *bus = azx_bus(chip);
struct pci_dev *pci = chip->pci;
u32 val;
snd_hdac_set_codec_wakeup(bus,
true);
if (chip->driver_type == AZX_DRIVER_SKL) {
pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
}
azx_init_chip(chip, full_reset);
if (chip->driver_type == AZX_DRIVER_SKL) {
pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
val = val | INTEL_HDA_CGCTL_MISCBDCGE;
pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
}
snd_hdac_set_codec_wakeup(bus,
false);
/* reduce dma latency to avoid noise */
if (HDA_CONTROLLER_IS_APL(pci))
bxt_reduce_dma_latency(chip);
if (bus->mlcap != NULL)
intel_init_lctl(chip);
}
/* calculate runtime delay from LPIB */
static int azx_get_delay_from_lpib(
struct azx *chip,
struct azx_dev *azx_dev,
unsigned int pos)
{
struct snd_pcm_substream *substream = azx_dev->core.substream;
int stream = substream->stream;
unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
int delay;
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
delay = pos - lpib_pos;
else
delay = lpib_pos - pos;
if (delay < 0) {
if (delay >= azx_dev->core.delay_negative_threshold)
delay = 0;
else
delay += azx_dev->core.bufsize;
}
if (delay >= azx_dev->core.period_bytes) {
dev_info(chip->card->dev,
"Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
delay, azx_dev->core.period_bytes);
delay = 0;
chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
chip->get_delay[stream] = NULL;
}
return bytes_to_frames(substream->runtime, delay);
}
static int azx_position_ok(
struct azx *chip,
struct azx_dev *azx_dev);
/* called from IRQ */
static int azx_position_check(
struct azx *chip,
struct azx_dev *azx_dev)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
int ok;
ok = azx_position_ok(chip, azx_dev);
if (ok == 1) {
azx_dev->irq_pending = 0;
return ok;
}
else if (ok == 0) {
/* bogus IRQ, process it later */
azx_dev->irq_pending = 1;
schedule_work(&hda->irq_pending_work);
}
return 0;
}
#define display_power(chip, enable) \
snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
/*
* Check whether the current DMA position is acceptable for updating
* periods. Returns non-zero if it's OK.
*
* Many HD-audio controllers appear pretty inaccurate about
* the update-IRQ timing. The IRQ is issued before actually the
* data is processed. So, we need to process it afterwords in a
* workqueue.
*
* Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
*/
static int azx_position_ok(
struct azx *chip,
struct azx_dev *azx_dev)
{
struct snd_pcm_substream *substream = azx_dev->core.substream;
struct snd_pcm_runtime *runtime = substream->runtime;
int stream = substream->stream;
u32 wallclk;
unsigned int pos;
snd_pcm_uframes_t hwptr, target;
/*
* The value of the WALLCLK register is always 0
* on the Loongson controller, so we return directly.
*/
if (chip->driver_type == AZX_DRIVER_LOONGSON)
return 1;
wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
return -1;
/* bogus (too early) interrupt */
if (chip->get_position[stream])
pos = chip->get_position[stream](chip, azx_dev);
else {
/* use the position buffer as default */
pos = azx_get_pos_posbuf(chip, azx_dev);
if (!pos || pos == (u32)-1) {
dev_info(chip->card->dev,
"Invalid position buffer, using LPIB read method instead.\n");
chip->get_position[stream] = azx_get_pos_lpib;
if (chip->get_position[0] == azx_get_pos_lpib &&
chip->get_position[1] == azx_get_pos_lpib)
azx_bus(chip)->use_posbuf =
false;
pos = azx_get_pos_lpib(chip, azx_dev);
chip->get_delay[stream] = NULL;
}
else {
chip->get_position[stream] = azx_get_pos_posbuf;
if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
chip->get_delay[stream] = azx_get_delay_from_lpib;
}
}
if (pos >= azx_dev->core.bufsize)
pos = 0;
if (WARN_ONCE(!azx_dev->core.period_bytes,
"hda-intel: zero azx_dev->period_bytes"))
return -1;
/* this shouldn't happen! */
if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
/* NG - it's below the first next period boundary */
return chip->bdl_pos_adj ? 0 : -1;
azx_dev->core.start_wallclk += wallclk;
if (azx_dev->core.no_period_wakeup)
return 1;
/* OK, no need to check period boundary */
if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
return 1;
/* OK, already in hwptr updating process */
/* check whether the period gets really elapsed */
pos = bytes_to_frames(runtime, pos);
hwptr = runtime->hw_ptr_base + pos;
if (hwptr < runtime->status->hw_ptr)
hwptr += runtime->buffer_size;
target = runtime->hw_ptr_interrupt + runtime->period_size;
if (hwptr < target) {
/* too early wakeup, process it later */
return chip->bdl_pos_adj ? 0 : -1;
}
return 1;
/* OK, it's fine */
}
/*
* The work for pending PCM period updates.
*/
static void azx_irq_pending_work(
struct work_struct *work)
{
struct hda_intel *hda = container_of(work,
struct hda_intel, irq_pending_work);
struct azx *chip = &hda->chip;
struct hdac_bus *bus = azx_bus(chip);
struct hdac_stream *s;
int pending, ok;
if (!hda->irq_pending_warned) {
dev_info(chip->card->dev,
"IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
chip->card->number);
hda->irq_pending_warned = 1;
}
for (;;) {
pending = 0;
spin_lock_irq(&bus->reg_lock);
list_for_each_entry(s, &bus->stream_list, list) {
struct azx_dev *azx_dev = stream_to_azx_dev(s);
if (!azx_dev->irq_pending ||
!s->substream ||
!s->running)
continue;
ok = azx_position_ok(chip, azx_dev);
if (ok > 0) {
azx_dev->irq_pending = 0;
spin_unlock(&bus->reg_lock);
snd_pcm_period_elapsed(s->substream);
spin_lock(&bus->reg_lock);
}
else if (ok < 0) {
pending = 0;
/* too early */
}
else
pending++;
}
spin_unlock_irq(&bus->reg_lock);
if (!pending)
return;
msleep(1);
}
}
/* clear irq_pending flags and assure no on-going workq */
static void azx_clear_irq_pending(
struct azx *chip)
{
struct hdac_bus *bus = azx_bus(chip);
struct hdac_stream *s;
spin_lock_irq(&bus->reg_lock);
list_for_each_entry(s, &bus->stream_list, list) {
struct azx_dev *azx_dev = stream_to_azx_dev(s);
azx_dev->irq_pending = 0;
}
spin_unlock_irq(&bus->reg_lock);
}
static int azx_acquire_irq(
struct azx *chip,
int do_disconnect)
{
struct hdac_bus *bus = azx_bus(chip);
int ret;
if (!chip->msi || pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_MSI) < 0) {
ret = pci_alloc_irq_vectors(chip->pci, 1, 1, PCI_IRQ_INTX);
if (ret < 0)
return ret;
chip->msi = 0;
}
if (request_irq(chip->pci->irq, azx_interrupt,
chip->msi ? 0 : IRQF_SHARED,
chip->card->irq_descr, chip)) {
dev_err(chip->card->dev,
"unable to grab IRQ %d, disabling device\n",
chip->pci->irq);
if (do_disconnect)
snd_card_disconnect(chip->card);
return -1;
}
bus->irq = chip->pci->irq;
chip->card->sync_irq = bus->irq;
return 0;
}
/* get the current DMA position with correction on VIA chips */
static unsigned int azx_via_get_position(
struct azx *chip,
struct azx_dev *azx_dev)
{
unsigned int link_pos, mini_pos, bound_pos;
unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
unsigned int fifo_size;
link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/* Playback, no problem using link position */
return link_pos;
}
/* Capture */
/* For new chipset,
* use mod to get the DMA position just like old chipset
*/
mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
mod_dma_pos %= azx_dev->core.period_bytes;
fifo_size = azx_stream(azx_dev)->fifo_size;
if (azx_dev->insufficient) {
/* Link position never gather than FIFO size */
if (link_pos <= fifo_size)
return 0;
azx_dev->insufficient = 0;
}
if (link_pos <= fifo_size)
mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
else
mini_pos = link_pos - fifo_size;
/* Find nearest previous boudary */
mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
mod_link_pos = link_pos % azx_dev->core.period_bytes;
if (mod_link_pos >= fifo_size)
bound_pos = link_pos - mod_link_pos;
else if (mod_dma_pos >= mod_mini_pos)
bound_pos = mini_pos - mod_mini_pos;
else {
bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
if (bound_pos >= azx_dev->core.bufsize)
bound_pos = 0;
}
/* Calculate real DMA position we want */
return bound_pos + mod_dma_pos;
}
#define AMD_FIFO_SIZE 32
/* get the current DMA position with FIFO size correction */
static unsigned int azx_get_pos_fifo(
struct azx *chip,
struct azx_dev *azx_dev)
{
struct snd_pcm_substream *substream = azx_dev->core.substream;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int pos, delay;
pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
if (!runtime)
return pos;
runtime->delay = AMD_FIFO_SIZE;
delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
if (azx_dev->insufficient) {
if (pos < delay) {
delay = pos;
runtime->delay = bytes_to_frames(runtime, pos);
}
else {
azx_dev->insufficient = 0;
}
}
/* correct the DMA position for capture stream */
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (pos < delay)
pos += azx_dev->core.bufsize;
pos -= delay;
}
return pos;
}
static int azx_get_delay_from_fifo(
struct azx *chip,
struct azx_dev *azx_dev,
unsigned int pos)
{
struct snd_pcm_substream *substream = azx_dev->core.substream;
/* just read back the calculated value in the above */
return substream->runtime->delay;
}
static void __azx_shutdown_chip(
struct azx *chip,
bool skip_link_reset)
{
azx_stop_chip(chip);
if (!skip_link_reset)
azx_enter_link_reset(chip);
azx_clear_irq_pending(chip);
display_power(chip,
false);
}
static DEFINE_MUTEX(card_list_lock);
static LIST_HEAD(card_list);
static void azx_shutdown_chip(
struct azx *chip)
{
__azx_shutdown_chip(chip,
false);
}
static void azx_add_card_list(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
mutex_lock(&card_list_lock);
list_add(&hda->list, &card_list);
mutex_unlock(&card_list_lock);
}
static void azx_del_card_list(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
mutex_lock(&card_list_lock);
list_del_init(&hda->list);
mutex_unlock(&card_list_lock);
}
/* trigger power-save check at writing parameter */
static int __maybe_unused param_set_xint(
const char *val,
const struct kernel_param *kp)
{
struct hda_intel *hda;
struct azx *chip;
int prev = power_save;
int ret = param_set_int(val, kp);
if (ret || prev == power_save)
return ret;
if (pm_blacklist > 0)
return 0;
mutex_lock(&card_list_lock);
list_for_each_entry(hda, &card_list, list) {
chip = &hda->chip;
if (!hda->probe_continued || chip->disabled ||
hda->runtime_pm_disabled)
continue;
snd_hda_set_power_save(&chip->bus, power_save * 1000);
}
mutex_unlock(&card_list_lock);
return 0;
}
/*
* power management
*/
static bool azx_is_pm_ready(
struct snd_card *card)
{
struct azx *chip;
struct hda_intel *hda;
if (!card)
return false;
chip = card->private_data;
hda = container_of(chip,
struct hda_intel, chip);
if (chip->disabled || hda->init_failed || !chip->running)
return false;
return true;
}
static void __azx_runtime_resume(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct hdac_bus *bus = azx_bus(chip);
struct hda_codec *codec;
int status;
display_power(chip,
true);
if (hda->need_i915_power)
snd_hdac_i915_set_bclk(bus);
/* Read STATESTS before controller reset */
status = azx_readw(chip, STATESTS);
azx_init_pci(chip);
hda_intel_init_chip(chip,
true);
/* Avoid codec resume if runtime resume is for system suspend */
if (!chip->pm_prepared) {
list_for_each_codec(codec, &chip->bus) {
if (codec->relaxed_resume)
continue;
if (codec->forced_resume || (status & (1 << codec->addr)))
pm_request_resume(hda_codec_dev(codec));
}
}
/* power down again for link-controlled chips */
if (!hda->need_i915_power)
display_power(chip,
false);
}
static int azx_prepare(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return 0;
chip = card->private_data;
chip->pm_prepared = 1;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
flush_work(&azx_bus(chip)->unsol_work);
/* HDA controller always requires different WAKEEN for runtime suspend
* and system suspend, so don't use direct-complete here.
*/
return 0;
}
static void azx_complete(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return;
chip = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
chip->pm_prepared = 0;
}
static int azx_suspend(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return 0;
chip = card->private_data;
azx_shutdown_chip(chip);
trace_azx_suspend(chip);
return 0;
}
static int azx_resume(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return 0;
chip = card->private_data;
__azx_runtime_resume(chip);
trace_azx_resume(chip);
return 0;
}
/* put codec down to D3 at hibernation for Intel SKL+;
* otherwise BIOS may still access the codec and screw up the driver
*/
static int azx_freeze_noirq(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
if (!azx_is_pm_ready(card))
return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D3hot);
return 0;
}
static int azx_thaw_noirq(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip = card->private_data;
struct pci_dev *pci = to_pci_dev(dev);
if (!azx_is_pm_ready(card))
return 0;
if (chip->driver_type == AZX_DRIVER_SKL)
pci_set_power_state(pci, PCI_D0);
return 0;
}
static int azx_runtime_suspend(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return 0;
chip = card->private_data;
/* enable controller wake up event */
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
azx_shutdown_chip(chip);
trace_azx_runtime_suspend(chip);
return 0;
}
static int azx_runtime_resume(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
if (!azx_is_pm_ready(card))
return 0;
chip = card->private_data;
__azx_runtime_resume(chip);
/* disable controller Wake Up event*/
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) & ~STATESTS_INT_MASK);
trace_azx_runtime_resume(chip);
return 0;
}
static int azx_runtime_idle(
struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct azx *chip;
struct hda_intel *hda;
if (!card)
return 0;
chip = card->private_data;
hda = container_of(chip,
struct hda_intel, chip);
if (chip->disabled || hda->init_failed)
return 0;
if (!power_save_controller || !azx_has_pm_runtime(chip) ||
azx_bus(chip)->codec_powered || !chip->running)
return -EBUSY;
/* ELD notification gets broken when HD-audio bus is off */
if (needs_eld_notify_link(chip))
return -EBUSY;
return 0;
}
static const struct dev_pm_ops azx_pm = {
SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
.prepare = pm_sleep_ptr(azx_prepare),
.complete = pm_sleep_ptr(azx_complete),
.freeze_noirq = pm_sleep_ptr(azx_freeze_noirq),
.thaw_noirq = pm_sleep_ptr(azx_thaw_noirq),
RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
};
static int azx_probe_continue(
struct azx *chip);
#ifdef SUPPORT_VGA_SWITCHEROO
static struct pci_dev *get_bound_vga(
struct pci_dev *pci);
static void azx_vs_set_state(
struct pci_dev *pci,
enum vga_switcheroo_state state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct hda_codec *codec;
bool disabled;
wait_for_completion(&hda->probe_wait);
if (hda->init_failed)
return;
disabled = (state == VGA_SWITCHEROO_OFF);
if (chip->disabled == disabled)
return;
if (!hda->probe_continued) {
chip->disabled = disabled;
if (!disabled) {
dev_info(chip->card->dev,
"Start delayed initialization\n");
if (azx_probe_continue(chip) < 0)
dev_err(chip->card->dev,
"initialization error\n");
}
}
else {
dev_info(chip->card->dev,
"%s via vga_switcheroo\n",
disabled ?
"Disabling" :
"Enabling");
if (disabled) {
list_for_each_codec(codec, &chip->bus) {
pm_runtime_suspend(hda_codec_dev(codec));
pm_runtime_disable(hda_codec_dev(codec));
}
pm_runtime_suspend(card->dev);
pm_runtime_disable(card->dev);
/* when we get suspended by vga_switcheroo we end up in D3cold,
* however we have no ACPI handle, so pci/acpi can't put us there,
* put ourselves there */
pci->current_state = PCI_D3cold;
chip->disabled =
true;
if (snd_hda_lock_devices(&chip->bus))
dev_warn(chip->card->dev,
"Cannot lock devices!\n");
}
else {
snd_hda_unlock_devices(&chip->bus);
chip->disabled =
false;
pm_runtime_enable(card->dev);
list_for_each_codec(codec, &chip->bus) {
pm_runtime_enable(hda_codec_dev(codec));
pm_runtime_resume(hda_codec_dev(codec));
}
}
}
}
static bool azx_vs_can_switch(
struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
wait_for_completion(&hda->probe_wait);
if (hda->init_failed)
return false;
if (chip->disabled || !hda->probe_continued)
return true;
if (snd_hda_lock_devices(&chip->bus))
return false;
snd_hda_unlock_devices(&chip->bus);
return true;
}
/*
* The discrete GPU cannot power down unless the HDA controller runtime
* suspends, so activate runtime PM on codecs even if power_save == 0.
*/
static void setup_vga_switcheroo_runtime_pm(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct hda_codec *codec;
if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
list_for_each_codec(codec, &chip->bus)
codec->auto_runtime_pm = 1;
/* reset the power save setup */
if (chip->running)
set_default_power_save(chip);
}
}
static void azx_vs_gpu_bound(
struct pci_dev *pci,
enum vga_switcheroo_client_id client_id)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
if (client_id == VGA_SWITCHEROO_DIS)
chip->bus.keep_power = 0;
setup_vga_switcheroo_runtime_pm(chip);
}
static void init_vga_switcheroo(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct pci_dev *p = get_bound_vga(chip->pci);
struct pci_dev *parent;
if (p) {
dev_info(chip->card->dev,
"Handle vga_switcheroo audio client\n");
hda->use_vga_switcheroo = 1;
/* cleared in either gpu_bound op or codec probe, or when its
* upstream port has _PR3 (i.e. dGPU).
*/
parent = pci_upstream_bridge(p);
chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
pci_dev_put(p);
}
}
static const struct vga_switcheroo_client_ops azx_vs_ops = {
.set_gpu_state = azx_vs_set_state,
.can_switch = azx_vs_can_switch,
.gpu_bound = azx_vs_gpu_bound,
};
static int register_vga_switcheroo(
struct azx *chip)
{
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct pci_dev *p;
int err;
if (!hda->use_vga_switcheroo)
return 0;
p = get_bound_vga(chip->pci);
err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
pci_dev_put(p);
if (err < 0)
return err;
hda->vga_switcheroo_registered = 1;
return 0;
}
#else
#define init_vga_switcheroo(chip)
/* NOP */
#define register_vga_switcheroo(chip) 0
#define check_hdmi_disabled(pci)
false
#define setup_vga_switcheroo_runtime_pm(chip)
/* NOP */
#endif /* SUPPORT_VGA_SWITCHER */
/*
* destructor
*/
static void azx_free(
struct azx *chip)
{
struct pci_dev *pci = chip->pci;
struct hda_intel *hda = container_of(chip,
struct hda_intel, chip);
struct hdac_bus *bus = azx_bus(chip);
if (hda->freed)
return;
if (azx_has_pm_runtime(chip) && chip->running) {
pm_runtime_get_noresume(&pci->dev);
pm_runtime_forbid(&pci->dev);
pm_runtime_dont_use_autosuspend(&pci->dev);
}
chip->running = 0;
azx_del_card_list(chip);
hda->init_failed = 1;
/* to be sure */
complete_all(&hda->probe_wait);
if (use_vga_switcheroo(hda)) {
if (chip->disabled && hda->probe_continued)
snd_hda_unlock_devices(&chip->bus);
if (hda->vga_switcheroo_registered) {
vga_switcheroo_unregister_client(chip->pci);
/* Some GPUs don't have sound, and azx_first_init fails,
* leaving the device probed but non-functional. As long
* as it's probed, the PCI subsystem keeps its runtime
* PM status as active. Force it to suspended (as we
* actually stop the chip) to allow GPU to suspend via
* vga_switcheroo, and print a warning.
*/
dev_warn(&pci->dev,
"GPU sound probed, but not operational: please add a quirk to driver_denylist\n");
pm_runtime_disable(&pci->dev);
pm_runtime_set_suspended(&pci->dev);
pm_runtime_enable(&pci->dev);
}
}
if (bus->chip_init) {
azx_clear_irq_pending(chip);
azx_stop_all_streams(chip);
azx_stop_chip(chip);
}
if (bus->irq >= 0)
free_irq(bus->irq, (
void*)chip);
azx_free_stream_pages(chip);
azx_free_streams(chip);
snd_hdac_bus_exit(bus);
#ifdef CONFIG_SND_HDA_PATCH_LOADER
release_firmware(chip->fw);
#endif
display_power(chip,
false);
if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
snd_hdac_i915_exit(bus);
hda->freed = 1;
}
static int azx_dev_disconnect(
struct snd_device *device)
{
struct azx *chip = device->device_data;
struct hdac_bus *bus = azx_bus(chip);
chip->bus.shutdown = 1;
cancel_work_sync(&bus->unsol_work);
return 0;
}
static int azx_dev_free(
struct snd_device *device)
{
azx_free(device->device_data);
return 0;
}
#ifdef SUPPORT_VGA_SWITCHEROO
#ifdef CONFIG_ACPI
/* ATPX is in the integrated GPU's namespace */
static bool atpx_present(
void)
{
struct pci_dev *pdev = NULL;
acpi_handle dhandle, atpx_handle;
acpi_status status;
while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) {
if ((pdev->
class != PCI_CLASS_DISPLAY_VGA << 8) &&
(pdev->
class != PCI_CLASS_DISPLAY_OTHER << 8))
continue;
dhandle = ACPI_HANDLE(&pdev->dev);
if (dhandle) {
status = acpi_get_handle(dhandle,
"ATPX", &atpx_handle);
if (ACPI_SUCCESS(status)) {
pci_dev_put(pdev);
return true;
}
}
}
return false;
}
#else
static bool atpx_present(
void)
{
return false;
}
#endif
/*
* Check of disabled HDMI controller by vga_switcheroo
*/
static struct pci_dev *get_bound_vga(
struct pci_dev *pci)
{
struct pci_dev *p;
/* check only discrete GPU */
switch (pci->vendor) {
case PCI_VENDOR_ID_ATI:
case PCI_VENDOR_ID_AMD:
if (pci->devfn == 1) {
p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
pci->bus->number, 0);
if (p) {
/* ATPX is in the integrated GPU's ACPI namespace
* rather than the dGPU's namespace. However,
* the dGPU is the one who is involved in
* vgaswitcheroo.
*/
if (pci_is_display(p) &&
(atpx_present() || apple_gmux_detect(NULL, NULL)))
return p;
pci_dev_put(p);
}
}
break;
case PCI_VENDOR_ID_NVIDIA:
if (pci->devfn == 1) {
p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
pci->bus->number, 0);
if (p) {
if (pci_is_display(p))
return p;
pci_dev_put(p);
}
}
break;
}
return NULL;
}
static bool check_hdmi_disabled(
struct pci_dev *pci)
{
bool vga_inactive =
false;
struct pci_dev *p = get_bound_vga(pci);
if (p) {
if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
vga_inactive =
true;
pci_dev_put(p);
}
return vga_inactive;
}
#endif /* SUPPORT_VGA_SWITCHEROO */
/*
* allow/deny-listing for position_fix
*/
static const struct snd_pci_quirk position_fix_list[] = {
SND_PCI_QUIRK(0x1028, 0x01cc,
"Dell D820", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01de,
"Dell Precision 390", POS_FIX_LPIB),
SND_PCI_QUIRK(0x103c, 0x306d,
"HP dv3", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x813d,
"ASUS P5AD2", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81b3,
"ASUS", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81e7,
"ASUS M2V", POS_FIX_LPIB),
SND_PCI_QUIRK(0x104d, 0x9069,
"Sony VPCS11V9E", POS_FIX_LPIB),
SND_PCI_QUIRK(0x10de, 0xcb89,
"Macbook Pro 7,1", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1297, 0x3166,
"Shuttle", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1458, 0xa022,
"ga-ma770-ud3", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1462, 0x1002,
"MSI Wind U115", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1565, 0x8218,
"Biostar Microtech", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1849, 0x0888,
"775Dual-VSTA", POS_FIX_LPIB),
SND_PCI_QUIRK(0x8086, 0x2503,
"DG965OT AAD63733-203", POS_FIX_LPIB),
{}
};
static int check_position_fix(
struct azx *chip,
int fix)
{
const struct snd_pci_quirk *q;
switch (fix) {
case POS_FIX_AUTO:
case POS_FIX_LPIB:
case POS_FIX_POSBUF:
case POS_FIX_VIACOMBO:
case POS_FIX_COMBO:
case POS_FIX_SKL:
case POS_FIX_FIFO:
return fix;
}
q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
if (q) {
dev_info(chip->card->dev,
"position_fix set to %d for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
return q->value;
}
/* Check VIA/ATI HD Audio Controller exist */
if (chip->driver_type == AZX_DRIVER_VIA) {
dev_dbg(chip->card->dev,
"Using VIACOMBO position fix\n");
return POS_FIX_VIACOMBO;
}
if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
dev_dbg(chip->card->dev,
"Using FIFO position fix\n");
return POS_FIX_FIFO;
}
if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
dev_dbg(chip->card->dev,
"Using LPIB position fix\n");
return POS_FIX_LPIB;
}
if (chip->driver_type == AZX_DRIVER_SKL) {
dev_dbg(chip->card->dev,
"Using SKL position fix\n");
return POS_FIX_SKL;
}
return POS_FIX_AUTO;
}
static void assign_position_fix(
struct azx *chip,
int fix)
{
static const azx_get_pos_callback_t callbacks[] = {
[POS_FIX_AUTO] = NULL,
[POS_FIX_LPIB] = azx_get_pos_lpib,
[POS_FIX_POSBUF] = azx_get_pos_posbuf,
[POS_FIX_VIACOMBO] = azx_via_get_position,
[POS_FIX_COMBO] = azx_get_pos_lpib,
[POS_FIX_SKL] = azx_get_pos_posbuf,
[POS_FIX_FIFO] = azx_get_pos_fifo,
};
chip->get_position[0] = chip->get_position[1] = callbacks[fix];
/* combo mode uses LPIB only for playback */
if (fix == POS_FIX_COMBO)
chip->get_position[1] = NULL;
if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
(chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
chip->get_delay[0] = chip->get_delay[1] =
azx_get_delay_from_lpib;
}
if (fix == POS_FIX_FIFO)
chip->get_delay[0] = chip->get_delay[1] =
azx_get_delay_from_fifo;
}
/*
* deny-lists for probe_mask
*/
static const struct snd_pci_quirk probe_mask_list[] = {
/* Thinkpad often breaks the controller communication when accessing
* to the non-working (or non-existing) modem codec slot.
*/
SND_PCI_QUIRK(0x1014, 0x05b7,
"Thinkpad Z60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x2010,
"Thinkpad X/T/R60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x20ac,
"Thinkpad X/T/R61", 0x01),
/* broken BIOS */
SND_PCI_QUIRK(0x1028, 0x20ac,
"Dell Studio Desktop", 0x01),
/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
SND_PCI_QUIRK(0x17c0, 0x4085,
"Medion MD96630", 0x01),
/* forced codec slots */
SND_PCI_QUIRK(0x1043, 0x1262,
"ASUS W5Fm", 0x103),
SND_PCI_QUIRK(0x1046, 0x1262,
"ASUS W5F", 0x103),
SND_PCI_QUIRK(0x1558, 0x0351,
"Schenker Dock 15", 0x105),
/* WinFast VP200 H (Teradici) user reported broken communication */
SND_PCI_QUIRK(0x3a21, 0x040d,
"WinFast VP200 H", 0x101),
{}
};
#define AZX_FORCE_CODEC_MASK 0x100
static void check_probe_mask(
struct azx *chip,
int dev)
{
const struct snd_pci_quirk *q;
chip->codec_probe_mask = probe_mask[dev];
if (chip->codec_probe_mask == -1) {
q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
if (q) {
dev_info(chip->card->dev,
"probe_mask set to 0x%x for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
chip->codec_probe_mask = q->value;
}
}
/* check forced option */
if (chip->codec_probe_mask != -1 &&
(chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
dev_info(chip->card->dev,
"codec_mask forced to 0x%x\n",
(
int)azx_bus(chip)->codec_mask);
}
}
/*
* allow/deny-list for enable_msi
*/
static const struct snd_pci_quirk msi_deny_list[] = {
SND_PCI_QUIRK(0x103c, 0x2191,
"HP", 0),
/* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x2192,
"HP", 0),
/* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x21f7,
"HP", 0),
/* AMD Hudson */
SND_PCI_QUIRK(0x103c, 0x21fa,
"HP", 0),
/* AMD Hudson */
SND_PCI_QUIRK(0x1043, 0x81f2,
"ASUS", 0),
/* Athlon64 X2 + nvidia */
SND_PCI_QUIRK(0x1043, 0x81f6,
"ASUS", 0),
/* nvidia */
SND_PCI_QUIRK(0x1043, 0x822d,
"ASUS", 0),
/* Athlon64 X2 + nvidia MCP55 */
SND_PCI_QUIRK(0x1179, 0xfb44,
"Toshiba Satellite C870", 0),
/* AMD Hudson */
SND_PCI_QUIRK(0x1849, 0x0888,
"ASRock", 0),
/* Athlon64 X2 + nvidia */
SND_PCI_QUIRK(0xa0a0, 0x0575,
"Aopen MZ915-M", 0),
/* ICH6 */
{}
};
static void check_msi(
struct azx *chip)
{
const struct snd_pci_quirk *q;
if (enable_msi >= 0) {
chip->msi = !!enable_msi;
return;
}
chip->msi = 1;
/* enable MSI as default */
q = snd_pci_quirk_lookup(chip->pci, msi_deny_list);
if (q) {
dev_info(chip->card->dev,
"msi for device %04x:%04x set to %d\n",
q->subvendor, q->subdevice, q->value);
chip->msi = q->value;
return;
}
/* NVidia chipsets seem to cause troubles with MSI */
if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
dev_info(chip->card->dev,
"Disabling MSI\n");
chip->msi = 0;
}
}
/* check the snoop mode availability */
static void azx_check_snoop_available(
struct azx *chip)
{
int snoop = hda_snoop;
if (snoop >= 0) {
dev_info(chip->card->dev,
"Force to %s mode by module option\n",
snoop ?
"snoop" :
"non-snoop");
chip->snoop = snoop;
chip->uc_buffer = !snoop;
return;
}
snoop =
true;
if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
chip->driver_type == AZX_DRIVER_VIA) {
/* force to non-snoop mode for a new VIA controller
* when BIOS is set
*/
u8 val;
pci_read_config_byte(chip->pci, 0x42, &val);
if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
chip->pci->revision == 0x20))
snoop =
false;
}
if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
snoop =
false;
chip->snoop = snoop;
if (!snoop) {
dev_info(chip->card->dev,
"Force to non-snoop mode\n");
/* C-Media requires non-cached pages only for CORB/RIRB */
if (chip->driver_type != AZX_DRIVER_CMEDIA)
chip->uc_buffer =
true;
}
}
static void azx_probe_work(
struct work_struct *work)
{
struct hda_intel *hda = container_of(work,
struct hda_intel, probe_work.work);
azx_probe_continue(&hda->chip);
}
static int default_bdl_pos_adj(
struct azx *chip)
{
/* some exceptions: Atoms seem problematic with value 1 */
if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
switch (chip->pci->device) {
case PCI_DEVICE_ID_INTEL_HDA_BYT:
case PCI_DEVICE_ID_INTEL_HDA_BSW:
return 32;
case PCI_DEVICE_ID_INTEL_HDA_APL:
return 64;
}
}
switch (chip->driver_type) {
/*
* increase the bdl size for Glenfly Gpus for hardware
* limitation on hdac interrupt interval
*/
case AZX_DRIVER_GFHDMI:
return 128;
case AZX_DRIVER_ICH:
case AZX_DRIVER_PCH:
return 1;
case AZX_DRIVER_ZHAOXINHDMI:
return 128;
default:
return 32;
}
}
/*
* constructor
*/
static const struct hda_controller_ops pci_hda_ops;
static int azx_create(
struct snd_card *card,
struct pci_dev *pci,
int dev,
unsigned int driver_caps,
struct azx **rchip)
{
static const struct snd_device_ops ops = {
.dev_disconnect = azx_dev_disconnect,
.dev_free = azx_dev_free,
};
struct hda_intel *hda;
struct azx *chip;
int err;
*rchip = NULL;
err = pcim_enable_device(pci);
if (err < 0)
return err;
hda = devm_kzalloc(&pci->dev,
sizeof(*hda), GFP_KERNEL);
if (!hda)
return -ENOMEM;
chip = &hda->chip;
mutex_init(&chip->open_mutex);
chip->card = card;
chip->pci = pci;
chip->ops = &pci_hda_ops;
chip->driver_caps = driver_caps;
chip->driver_type = driver_caps & 0xff;
check_msi(chip);
chip->dev_index = dev;
if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
INIT_LIST_HEAD(&chip->pcm_list);
INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
INIT_LIST_HEAD(&hda->list);
init_vga_switcheroo(chip);
init_completion(&hda->probe_wait);
assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
if (single_cmd < 0)
/* allow fallback to single_cmd at errors */
chip->fallback_to_single_cmd = 1;
else /* explicitly set to single_cmd or not */
chip->single_cmd = single_cmd;
azx_check_snoop_available(chip);
if (bdl_pos_adj[dev] < 0)
chip->bdl_pos_adj = default_bdl_pos_adj(chip);
else
chip->bdl_pos_adj = bdl_pos_adj[dev];
err = azx_bus_init(chip, model[dev]);
if (err < 0)
return err;
/* use the non-cached pages in non-snoop mode */
if (!azx_snoop(chip))
azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_WC;
if (chip->driver_type == AZX_DRIVER_NVIDIA) {
dev_dbg(chip->card->dev,
"Enable delay in RIRB handling\n");
chip->bus.core.needs_damn_long_delay = 1;
}
check_probe_mask(chip, dev);
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err < 0) {
dev_err(card->dev,
"Error creating device [card]!\n");
azx_free(chip);
return err;
}
/* continue probing in work context as may trigger request module */
INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
*rchip = chip;
return 0;
}
static int azx_first_init(
struct azx *chip)
{
int dev = chip->dev_index;
struct pci_dev *pci = chip->pci;
struct snd_card *card = chip->card;
struct hdac_bus *bus = azx_bus(chip);
int err;
unsigned short gcap;
unsigned int dma_bits = 64;
#if BITS_PER_LONG != 64
/* Fix up base address on ULI M5461 */
if (chip->driver_type == AZX_DRIVER_ULI) {
u16 tmp3;
pci_read_config_word(pci, 0x40, &tmp3);
pci_write_config_word(pci, 0x40, tmp3 | 0x10);
pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
}
#endif
/*
* Fix response write request not synced to memory when handle
* hdac interrupt on Glenfly Gpus
*/
if (chip->driver_type == AZX_DRIVER_GFHDMI)
bus->polling_mode = 1;
if (chip->driver_type == AZX_DRIVER_LOONGSON) {
bus->polling_mode = 1;
bus->not_use_interrupts = 1;
bus->access_sdnctl_in_dword = 1;
if (!chip->jackpoll_interval)
chip->jackpoll_interval = msecs_to_jiffies(1500);
}
if (chip->driver_type == AZX_DRIVER_ZHAOXINHDMI)
bus->polling_mode = 1;
bus->remap_addr = pcim_iomap_region(pci, 0,
"ICH HD audio");
if (IS_ERR(bus->remap_addr))
return PTR_ERR(bus->remap_addr);
bus->addr = pci_resource_start(pci, 0);
if (chip->driver_type == AZX_DRIVER_SKL)
snd_hdac_bus_parse_capabilities(bus);
/*
* Some Intel CPUs has always running timer (ART) feature and
* controller may have Global time sync reporting capability, so
* check both of these before declaring synchronized time reporting
* capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
*/
chip->gts_present =
false;
#ifdef CONFIG_X86
if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
chip->gts_present =
true;
#endif
if (chip->msi && chip->driver_caps & AZX_DCAPS_NO_MSI64) {
dev_dbg(card->dev,
"Disabling 64bit MSI\n");
pci->no_64bit_msi =
true;
}
pci_set_master(pci);
gcap = azx_readw(chip, GCAP);
dev_dbg(card->dev,
"chipset global capabilities = 0x%x\n", gcap);
/* AMD devices support 40 or 48bit DMA, take the safe one */
if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
dma_bits = 40;
/* disable SB600 64bit support for safety */
if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
struct pci_dev *p_smbus;
dma_bits = 40;
p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
PCI_DEVICE_ID_ATI_SBX00_SMBUS,
NULL);
if (p_smbus) {
if (p_smbus->revision < 0x30)
gcap &= ~AZX_GCAP_64OK;
pci_dev_put(p_smbus);
}
}
/* NVidia hardware normally only supports up to 40 bits of DMA */
if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
dma_bits = 40;
/* disable 64bit DMA address on some devices */
if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
dev_dbg(card->dev,
"Disabling 64bit DMA\n");
gcap &= ~AZX_GCAP_64OK;
}
/* disable buffer size rounding to 128-byte multiples if supported */
if (align_buffer_size >= 0)
chip->align_buffer_size = !!align_buffer_size;
else {
if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
chip->align_buffer_size = 0;
else
chip->align_buffer_size = 1;
}
/* allow 64bit DMA address if supported by H/W */
if (!(gcap & AZX_GCAP_64OK))
dma_bits = 32;
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(dma_bits)))
dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32));
dma_set_max_seg_size(&pci->dev, UINT_MAX);
/* read number of streams from GCAP register instead of using
* hardcoded value
*/
chip->capture_streams = (gcap >> 8) & 0x0f;
chip->playback_streams = (gcap >> 12) & 0x0f;
if (!chip->playback_streams && !chip->capture_streams) {
/* gcap didn't give any info, switching to old method */
switch (chip->driver_type) {
case AZX_DRIVER_ULI:
chip->playback_streams = ULI_NUM_PLAYBACK;
chip->capture_streams = ULI_NUM_CAPTURE;
break;
case AZX_DRIVER_ATIHDMI:
case AZX_DRIVER_ATIHDMI_NS:
chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
chip->capture_streams = ATIHDMI_NUM_CAPTURE;
break;
case AZX_DRIVER_GFHDMI:
case AZX_DRIVER_ZHAOXINHDMI:
case AZX_DRIVER_GENERIC:
default:
chip->playback_streams = ICH6_NUM_PLAYBACK;
chip->capture_streams = ICH6_NUM_CAPTURE;
break;
}
}
chip->capture_index_offset = 0;
chip->playback_index_offset = chip->capture_streams;
chip->num_streams = chip->playback_streams + chip->capture_streams;
/* sanity check for the SDxCTL.STRM field overflow */
if (chip->num_streams > 15 &&
(chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
dev_warn(chip->card->dev,
"number of I/O streams is %d, "
"forcing separate stream tags", chip->num_streams);
chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
}
/* initialize streams */
err = azx_init_streams(chip);
if (err < 0)
return err;
err = azx_alloc_stream_pages(chip);
if (err < 0)
return err;
/* initialize chip */
azx_init_pci(chip);
snd_hdac_i915_set_bclk(bus);
hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
/* codec detection */
if (!azx_bus(chip)->codec_mask) {
dev_err(card->dev,
"no codecs found!\n");
/* keep running the rest for the runtime PM */
}
if (azx_acquire_irq(chip, 0) < 0)
return -EBUSY;
strscpy(card->driver,
"HDA-Intel");
strscpy(card->shortname, driver_short_names[chip->driver_type],
sizeof(card->shortname));
snprintf(card->longname,
sizeof(card->longname),
"%s at 0x%lx irq %i",
card->shortname, bus->addr, bus->irq);
return 0;
}
#ifdef CONFIG_SND_HDA_PATCH_LOADER
/* callback from request_firmware_nowait() */
static void azx_firmware_cb(
const struct firmware *fw,
void *context)
{
struct snd_card *card = context;
struct azx *chip = card->private_data;
if (fw)
chip->fw = fw;
else
dev_err(card->dev,
"Cannot load firmware, continue without patching\n");
if (!chip->disabled) {
/* continue probing */
azx_probe_continue(chip);
}
}
#endif
static int disable_msi_reset_irq(
struct azx *chip)
{
struct hdac_bus *bus = azx_bus(chip);
int err;
free_irq(bus->irq, chip);
bus->irq = -1;
chip->card->sync_irq = -1;
pci_free_irq_vectors(chip->pci);
chip->msi = 0;
err = azx_acquire_irq(chip, 1);
if (err < 0)
return err;
return 0;
}
/* Denylist for skipping the whole probe:
* some HD-audio PCI entries are exposed without any codecs, and such devices
* should be ignored from the beginning.
*/
static const struct pci_device_id driver_denylist[] = {
{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) },
/* ASUS ROG Zenith II / Strix */
{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) },
/* MSI TRX40 Creator */
{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) },
/* MSI TRX40 */
{ PCI_DEVICE_SUB(0x1022, 0x15e3, 0x1462, 0xee59) },
/* MSI X870E Tomahawk WiFi */
{}
};
static struct pci_device_id driver_denylist_ideapad_z570[] = {
{ PCI_DEVICE_SUB(0x10de, 0x0bea, 0x0000, 0x0000) },
/* NVIDIA GF108 HDA */
{}
};
/* DMI-based denylist, to be used when:
* - PCI subsystem IDs are zero, impossible to distinguish from valid sound cards.
* - Different modifications of the same laptop use different GPU models.
*/
static const struct dmi_system_id driver_denylist_dmi[] = {
{
/* No HDA in NVIDIA DGPU. BIOS disables it, but quirk_nvidia_hda() reenables. */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION,
"Ideapad Z570"),
},
.driver_data = &driver_denylist_ideapad_z570,
},
{}
};
static const struct hda_controller_ops pci_hda_ops = {
.disable_msi_reset_irq = disable_msi_reset_irq,
.position_check = azx_position_check,
};
static DECLARE_BITMAP(probed_devs, SNDRV_CARDS);
static int azx_probe(
struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
const struct dmi_system_id *dmi;
struct snd_card *card;
struct hda_intel *hda;
struct azx *chip;
bool schedule_probe;
int dev;
int err;
if (pci_match_id(driver_denylist, pci)) {
dev_info(&pci->dev,
"Skipping the device on the denylist\n");
return -ENODEV;
}
dmi = dmi_first_match(driver_denylist_dmi);
if (dmi && pci_match_id(dmi->driver_data, pci)) {
dev_info(&pci->dev,
"Skipping the device on the DMI denylist\n");
return -ENODEV;
}
dev = find_first_zero_bit(probed_devs, SNDRV_CARDS);
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
set_bit(dev, probed_devs);
return -ENOENT;
}
/*
* stop probe if another Intel's DSP driver should be activated
*/
if (dmic_detect) {
err = snd_intel_dsp_driver_probe(pci);
if (err != SND_INTEL_DSP_DRIVER_ANY && err != SND_INTEL_DSP_DRIVER_LEGACY) {
dev_dbg(&pci->dev,
"HDAudio driver not selected, aborting probe\n");
return -ENODEV;
}
}
else {
dev_warn(&pci->dev,
"dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
}
err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
0, &card);
if (err < 0) {
dev_err(&pci->dev,
"Error creating card!\n");
return err;
}
err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
if (err < 0)
goto out_free;
card->private_data = chip;
hda = container_of(chip,
struct hda_intel, chip);
pci_set_drvdata(pci, card);
#ifdef CONFIG_SND_HDA_I915
/* bind with i915 if needed */
if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
err = snd_hdac_i915_init(azx_bus(chip));
if (err < 0) {
if (err == -EPROBE_DEFER)
goto out_free;
/* if the controller is bound only with HDMI/DP
* (for HSW and BDW), we need to abort the probe;
* for other chips, still continue probing as other
* codecs can be on the same link.
*/
if (HDA_CONTROLLER_IN_GPU(pci)) {
dev_err_probe(card->dev, err,
"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
goto out_free;
}
else {
/* don't bother any longer */
chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
}
}
/* HSW/BDW controllers need this power */
if (HDA_CONTROLLER_IN_GPU(pci))
hda->need_i915_power =
true;
}
#else
if (HDA_CONTROLLER_IN_GPU(pci))
dev_err(card->dev,
"Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
#endif
err = register_vga_switcheroo(chip);
if (err < 0) {
dev_err(card->dev, "Error registering vga_switcheroo client\n");
goto out_free;
}
if (check_hdmi_disabled(pci)) {
dev_info(card->dev, "VGA controller is disabled\n");
dev_info(card->dev, "Delaying initialization\n");
chip->disabled = true;
}
schedule_probe = !chip->disabled;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
if (patch[dev] && *patch[dev]) {
dev_info(card->dev, "Applying patch firmware '%s'\n",
patch[dev]);
err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
&pci->dev, GFP_KERNEL, card,
azx_firmware_cb);
if (err < 0)
goto out_free;
schedule_probe = false; /* continued in azx_firmware_cb() */
}
#endif /* CONFIG_SND_HDA_PATCH_LOADER */
if (schedule_probe)
schedule_delayed_work(&hda->probe_work, 0);
set_bit(dev, probed_devs);
if (chip->disabled)
complete_all(&hda->probe_wait);
return 0;
out_free:
pci_set_drvdata(pci, NULL);
snd_card_free(card);
return err;
}
/* On some boards setting power_save to a non 0 value leads to clicking /
* popping sounds when ever we enter/leave powersaving mode. Ideally we would
* figure out how to avoid these sounds, but that is not always feasible.
* So we keep a list of devices where we disable powersaving as its known
* to causes problems on these devices.
*/
static const struct snd_pci_quirk power_save_denylist[] = {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
/* https://bugs.launchpad.net/bugs/1821663 */
SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
SND_PCI_QUIRK(0x17aa, 0x316e, "Lenovo ThinkCentre M70q", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
/* https://bugs.launchpad.net/bugs/1821663 */
SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
/* KONTRON SinglePC may cause a stall at runtime resume */
SND_PCI_QUIRK(0x1734, 0x1232, "KONTRON SinglePC", 0),
/* Dell ALC3271 */
SND_PCI_QUIRK(0x1028, 0x0962, "Dell ALC3271", 0),
/* https://bugzilla.kernel.org/show_bug.cgi?id=220210 */
SND_PCI_QUIRK(0x17aa, 0x5079, "Lenovo Thinkpad E15", 0),
{}
};
static void set_default_power_save(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
int val = power_save;
if (pm_blacklist < 0) {
const struct snd_pci_quirk *q;
q = snd_pci_quirk_lookup(chip->pci, power_save_denylist);
if (q && val) {
dev_info(chip->card->dev, "device %04x:%04x is on the power_save denylist, forcing power_save to 0\n",
q->subvendor, q->subdevice);
val = 0;
hda->runtime_pm_disabled = 1;
}
} else if (pm_blacklist > 0) {
dev_info(chip->card->dev, "Forcing power_save to 0 via option\n");
val = 0;
}
snd_hda_set_power_save(&chip->bus, val * 1000);
}
/* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
[AZX_DRIVER_NVIDIA] = 8,
[AZX_DRIVER_TERA] = 1,
};
static int azx_probe_continue(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
struct hdac_bus *bus = azx_bus(chip);
struct pci_dev *pci = chip->pci;
int dev = chip->dev_index;
int err;
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