From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file

---
 kernel/sound/pci/hda/hda_controller.c |  171 ++++++++++++++------------------------------------------
 1 files changed, 44 insertions(+), 127 deletions(-)

diff --git a/kernel/sound/pci/hda/hda_controller.c b/kernel/sound/pci/hda/hda_controller.c
index 0c5d41e..ea76395 100644
--- a/kernel/sound/pci/hda/hda_controller.c
+++ b/kernel/sound/pci/hda/hda_controller.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *
  *  Implementation of primary alsa driver code base for Intel HD Audio.
@@ -6,18 +7,6 @@
  *
  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
  *                     PeiSen Hou <pshou@realtek.com.tw>
- *
- *  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; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  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/clocksource.h>
@@ -36,6 +25,7 @@
 #include <sound/core.h>
 #include <sound/initval.h>
 #include "hda_controller.h"
+#include "hda_local.h"
 
 #define CREATE_TRACE_POINTS
 #include "hda_controller_trace.h"
@@ -118,7 +108,7 @@
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
 	struct azx *chip = apcm->chip;
 	struct azx_dev *azx_dev = get_azx_dev(substream);
-	int ret;
+	int ret = 0;
 
 	trace_azx_pcm_hw_params(chip, azx_dev);
 	dsp_lock(azx_dev);
@@ -130,8 +120,7 @@
 	azx_dev->core.bufsize = 0;
 	azx_dev->core.period_bytes = 0;
 	azx_dev->core.format_val = 0;
-	ret = chip->ops->substream_alloc_pages(chip, substream,
-					  params_buffer_bytes(hw_params));
+
 unlock:
 	dsp_unlock(azx_dev);
 	return ret;
@@ -141,9 +130,7 @@
 {
 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
 	struct azx_dev *azx_dev = get_azx_dev(substream);
-	struct azx *chip = apcm->chip;
 	struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
-	int err;
 
 	/* reset BDL address */
 	dsp_lock(azx_dev);
@@ -152,10 +139,9 @@
 
 	snd_hda_codec_cleanup(apcm->codec, hinfo, substream);
 
-	err = chip->ops->substream_free_pages(chip, substream);
 	azx_stream(azx_dev)->prepared = 0;
 	dsp_unlock(azx_dev);
-	return err;
+	return 0;
 }
 
 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
@@ -388,7 +374,7 @@
 	u32 wallclk_ctr, wallclk_cycles;
 	bool direction;
 	u32 dma_select;
-	u32 timeout = 200;
+	u32 timeout;
 	u32 retry_count = 0;
 
 	runtime = substream->runtime;
@@ -502,7 +488,7 @@
 }
 
 static int azx_get_time_info(struct snd_pcm_substream *substream,
-			struct timespec *system_ts, struct timespec *audio_ts,
+			struct timespec64 *system_ts, struct timespec64 *audio_ts,
 			struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
 			struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
 {
@@ -522,7 +508,7 @@
 		if (audio_tstamp_config->report_delay)
 			nsec = azx_adjust_codec_delay(substream, nsec);
 
-		*audio_ts = ns_to_timespec(nsec);
+		*audio_ts = ns_to_timespec64(nsec);
 
 		audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK;
 		audio_tstamp_report->accuracy_report = 1; /* rest of structure is valid */
@@ -539,16 +525,16 @@
 			return -EINVAL;
 
 		case SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW:
-			*system_ts = ktime_to_timespec(xtstamp.sys_monoraw);
+			*system_ts = ktime_to_timespec64(xtstamp.sys_monoraw);
 			break;
 
 		default:
-			*system_ts = ktime_to_timespec(xtstamp.sys_realtime);
+			*system_ts = ktime_to_timespec64(xtstamp.sys_realtime);
 			break;
 
 		}
 
-		*audio_ts = ktime_to_timespec(xtstamp.device);
+		*audio_ts = ktime_to_timespec64(xtstamp.device);
 
 		audio_tstamp_report->actual_type =
 			SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED;
@@ -563,7 +549,7 @@
 	return 0;
 }
 
-static struct snd_pcm_hardware azx_pcm_hw = {
+static const struct snd_pcm_hardware azx_pcm_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -697,7 +683,6 @@
 static const struct snd_pcm_ops azx_pcm_ops = {
 	.open = azx_pcm_open,
 	.close = azx_pcm_close,
-	.ioctl = snd_pcm_lib_ioctl,
 	.hw_params = azx_pcm_hw_params,
 	.hw_free = azx_pcm_hw_free,
 	.prepare = azx_pcm_prepare,
@@ -705,7 +690,6 @@
 	.pointer = azx_pcm_pointer,
 	.get_time_info =  azx_get_time_info,
 	.mmap = azx_pcm_mmap,
-	.page = snd_pcm_sgbuf_ops_page,
 };
 
 static void azx_pcm_free(struct snd_pcm *pcm)
@@ -730,6 +714,7 @@
 	int pcm_dev = cpcm->device;
 	unsigned int size;
 	int s, err;
+	int type = SNDRV_DMA_TYPE_DEV_SG;
 
 	list_for_each_entry(apcm, &chip->pcm_list, list) {
 		if (apcm->pcm->device == pcm_dev) {
@@ -768,9 +753,10 @@
 	size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024;
 	if (size > MAX_PREALLOC_SIZE)
 		size = MAX_PREALLOC_SIZE;
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
-					      chip->card->dev,
-					      size, MAX_PREALLOC_SIZE);
+	if (chip->uc_buffer)
+		type = SNDRV_DMA_TYPE_DEV_UC_SG;
+	snd_pcm_set_managed_buffer_all(pcm, type, chip->card->dev,
+				       size, MAX_PREALLOC_SIZE);
 	return 0;
 }
 
@@ -792,54 +778,21 @@
 {
 	struct azx *chip = bus_to_azx(bus);
 	struct hda_bus *hbus = &chip->bus;
-	unsigned long timeout;
-	unsigned long loopcounter;
-	int do_poll = 0;
+	int err;
 
  again:
-	timeout = jiffies + msecs_to_jiffies(1000);
-
-	for (loopcounter = 0;; loopcounter++) {
-		spin_lock_irq(&bus->reg_lock);
-		if (chip->polling_mode || do_poll)
-			snd_hdac_bus_update_rirb(bus);
-		if (!bus->rirb.cmds[addr]) {
-			if (!do_poll)
-				chip->poll_count = 0;
-			if (res)
-				*res = bus->rirb.res[addr]; /* the last value */
-			spin_unlock_irq(&bus->reg_lock);
-			return 0;
-		}
-		spin_unlock_irq(&bus->reg_lock);
-		if (time_after(jiffies, timeout))
-			break;
-		if (hbus->needs_damn_long_delay || loopcounter > 3000)
-			msleep(2); /* temporary workaround */
-		else {
-			udelay(10);
-			cond_resched();
-		}
-	}
+	err = snd_hdac_bus_get_response(bus, addr, res);
+	if (!err)
+		return 0;
 
 	if (hbus->no_response_fallback)
 		return -EIO;
 
-	if (!chip->polling_mode && chip->poll_count < 2) {
-		dev_dbg(chip->card->dev,
-			"azx_get_response timeout, polling the codec once: last cmd=0x%08x\n",
-			bus->last_cmd[addr]);
-		do_poll = 1;
-		chip->poll_count++;
-		goto again;
-	}
-
-
-	if (!chip->polling_mode) {
+	if (!bus->polling_mode) {
 		dev_warn(chip->card->dev,
 			 "azx_get_response timeout, switching to polling mode: last cmd=0x%08x\n",
 			 bus->last_cmd[addr]);
-		chip->polling_mode = 1;
+		bus->polling_mode = 1;
 		goto again;
 	}
 
@@ -987,20 +940,9 @@
 		return azx_rirb_get_response(bus, addr, res);
 }
 
-static int azx_link_power(struct hdac_bus *bus, bool enable)
-{
-	struct azx *chip = bus_to_azx(bus);
-
-	if (chip->ops->link_power)
-		return chip->ops->link_power(chip, enable);
-	else
-		return -EINVAL;
-}
-
 static const struct hdac_bus_ops bus_core_ops = {
 	.command = azx_send_cmd,
 	.get_response = azx_get_response,
-	.link_power = azx_link_power,
 };
 
 #ifdef CONFIG_SND_HDA_DSP_LOADER
@@ -1103,10 +1045,8 @@
 void azx_stop_all_streams(struct azx *chip)
 {
 	struct hdac_bus *bus = azx_bus(chip);
-	struct hdac_stream *s;
 
-	list_for_each_entry(s, &bus->stream_list, list)
-		snd_hdac_stream_stop(s);
+	snd_hdac_stop_streams(bus);
 }
 EXPORT_SYMBOL_GPL(azx_stop_all_streams);
 
@@ -1228,36 +1168,13 @@
 	bus->in_reset = 0;
 }
 
-static int get_jackpoll_interval(struct azx *chip)
-{
-	int i;
-	unsigned int j;
-
-	if (!chip->jackpoll_ms)
-		return 0;
-
-	i = chip->jackpoll_ms[chip->dev_index];
-	if (i == 0)
-		return 0;
-	if (i < 50 || i > 60000)
-		j = 0;
-	else
-		j = msecs_to_jiffies(i);
-	if (j == 0)
-		dev_warn(chip->card->dev,
-			 "jackpoll_ms value out of range: %d\n", i);
-	return j;
-}
-
 /* HD-audio bus initialization */
-int azx_bus_init(struct azx *chip, const char *model,
-		 const struct hdac_io_ops *io_ops)
+int azx_bus_init(struct azx *chip, const char *model)
 {
 	struct hda_bus *bus = &chip->bus;
 	int err;
 
-	err = snd_hdac_bus_init(&bus->core, chip->card->dev, &bus_core_ops,
-				io_ops);
+	err = snd_hdac_bus_init(&bus->core, chip->card->dev, &bus_core_ops);
 	if (err < 0)
 		return err;
 
@@ -1277,15 +1194,8 @@
 	if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY)
 		bus->core.align_bdle_4k = true;
 
-	/* AMD chipsets often cause the communication stalls upon certain
-	 * sequence like the pin-detection.  It seems that forcing the synced
-	 * access works around the stall.  Grrr...
-	 */
-	if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
-		dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
-		bus->core.sync_write = 1;
-		bus->allow_bus_reset = 1;
-	}
+	/* enable sync_write flag for stable communication as default */
+	bus->core.sync_write = 1;
 
 	return 0;
 }
@@ -1331,7 +1241,7 @@
 			err = snd_hda_codec_new(&chip->bus, chip->card, c, &codec);
 			if (err < 0)
 				continue;
-			codec->jackpoll_interval = get_jackpoll_interval(chip);
+			codec->jackpoll_interval = chip->jackpoll_interval;
 			codec->beep_mode = chip->beep_mode;
 			codecs++;
 		}
@@ -1348,17 +1258,24 @@
 int azx_codec_configure(struct azx *chip)
 {
 	struct hda_codec *codec, *next;
+	int success = 0;
 
-	/* use _safe version here since snd_hda_codec_configure() deregisters
-	 * the device upon error and deletes itself from the bus list.
-	 */
-	list_for_each_codec_safe(codec, next, &chip->bus) {
-		snd_hda_codec_configure(codec);
+	list_for_each_codec(codec, &chip->bus) {
+		if (!snd_hda_codec_configure(codec))
+			success++;
 	}
 
-	if (!azx_bus(chip)->num_codecs)
-		return -ENODEV;
-	return 0;
+	if (success) {
+		/* unregister failed codecs if any codec has been probed */
+		list_for_each_codec_safe(codec, next, &chip->bus) {
+			if (!codec->configured) {
+				codec_err(codec, "Unable to configure, disabling\n");
+				snd_hdac_device_unregister(&codec->core);
+			}
+		}
+	}
+
+	return success ? 0 : -ENODEV;
 }
 EXPORT_SYMBOL_GPL(azx_codec_configure);
 

--
Gitblit v1.6.2