ALSA: x86: Fold intel_hdmi_audio_if.c into main file

As the very last step, we fold intel_hdmi_audio_if.c into the main
file, intel_hdmi_audio.c.  This is merely a cleanup, and no functional
change.

By this move, we can mark all functions and variables as static, which
allows the compiler more optimizations.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 0 insertions, 390 deletions

diff --git a/sound/x86/intel_hdmi_audio_if.c b/sound/x86/intel_hdmi_audio_if.c
deleted file mode 100644
index 327650dd1723..000000000000
--- a/sound/x86/intel_hdmi_audio_if.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- *   intel_hdmi_audio_if.c - Intel HDMI audio driver for MID
- *
- *  Copyright (C) 2016 Intel Corp
- *  Authors:	Sailaja Bandarupalli <sailaja.bandarupalli@intel.com>
- *		Ramesh Babu K V <ramesh.babu@intel.com>
- *		Vaibhav Agarwal <vaibhav.agarwal@intel.com>
- *		Jerome Anand <jerome.anand@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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * ALSA driver for Intel MID HDMI audio controller.  This file contains
- * interface functions exposed to HDMI Display driver and code to register
- * with ALSA framework..
- */
-
-#define pr_fmt(fmt)		"had: " fmt
-
-#include <linux/io.h>
-#include <linux/jiffies.h>
-#include <linux/slab.h>
-#include <sound/pcm.h>
-#include <sound/core.h>
-#include "intel_hdmi_audio.h"
-#include "intel_hdmi_lpe_audio.h"
-
-/*
- * hdmi_lpe_audio_suspend - power management suspend function
- *
- * @pdev: platform device
- *
- * This function is called by client driver to suspend the
- * hdmi audio.
- */
-int hdmi_lpe_audio_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	struct had_stream_data *had_stream;
-	unsigned long flag_irqs;
-	struct snd_pcm_substream *substream;
-	struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
-
-	pr_debug("Enter:%s\n", __func__);
-
-	had_stream = &intelhaddata->stream_data;
-	substream = intelhaddata->stream_info.had_substream;
-
-	if (intelhaddata->dev->power.runtime_status != RPM_SUSPENDED) {
-		pr_err("audio stream is active\n");
-		return -EAGAIN;
-	}
-
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_debug("had not connected\n");
-		return 0;
-	}
-
-	if (intelhaddata->drv_status == HAD_DRV_SUSPENDED) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_debug("had already suspended\n");
-		return 0;
-	}
-
-	intelhaddata->drv_status = HAD_DRV_SUSPENDED;
-	pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_SUSPENDED\n",
-			__func__, __LINE__);
-
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-	snd_intelhad_enable_audio_int(intelhaddata, false);
-	pr_debug("Exit:%s", __func__);
-	return 0;
-}
-
-/*
- * hdmi_lpe_audio_resume - power management resume function
- *
- *@pdev: platform device
- *
- * This function is called by client driver to resume the
- * hdmi audio.
- */
-int hdmi_lpe_audio_resume(struct platform_device *pdev)
-{
-	struct snd_intelhad *intelhaddata = platform_get_drvdata(pdev);
-	unsigned long flag_irqs;
-
-	pr_debug("Enter:%s\n", __func__);
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_debug("had not connected\n");
-		return 0;
-	}
-
-	if (intelhaddata->drv_status != HAD_DRV_SUSPENDED) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_err("had is not in suspended state\n");
-		return 0;
-	}
-
-	if (had_get_hwstate(intelhaddata)) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_err("Failed to resume. Device not accessible\n");
-		return -ENODEV;
-	}
-
-	intelhaddata->drv_status = HAD_DRV_CONNECTED;
-	pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
-			__func__, __LINE__);
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-	snd_intelhad_enable_audio_int(intelhaddata, true);
-	pr_debug("Exit:%s", __func__);
-	return 0;
-}
-
-static inline int had_chk_intrmiss(struct snd_intelhad *intelhaddata,
-		enum intel_had_aud_buf_type buf_id)
-{
-	int i, intr_count = 0;
-	enum intel_had_aud_buf_type buff_done;
-	u32 buf_size, buf_addr;
-	struct had_stream_data *had_stream;
-	unsigned long flag_irqs;
-
-	had_stream = &intelhaddata->stream_data;
-
-	buff_done = buf_id;
-
-	intr_count = snd_intelhad_read_len(intelhaddata);
-	if (intr_count > 1) {
-		/* In case of active playback */
-		pr_err("Driver detected %d missed buffer done interrupt(s)!!!!\n",
-				(intr_count - 1));
-		if (intr_count > 3)
-			return intr_count;
-
-		buf_id += (intr_count - 1);
-		/* Reprogram registers*/
-		for (i = buff_done; i < buf_id; i++) {
-			int j = i % 4;
-
-			buf_size = intelhaddata->buf_info[j].buf_size;
-			buf_addr = intelhaddata->buf_info[j].buf_addr;
-			had_write_register(intelhaddata,
-					   AUD_BUF_A_LENGTH +
-					   (j * HAD_REG_WIDTH), buf_size);
-			had_write_register(intelhaddata,
-					   AUD_BUF_A_ADDR+(j * HAD_REG_WIDTH),
-					   (buf_addr | BIT(0) | BIT(1)));
-		}
-		buf_id = buf_id % 4;
-		spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-		intelhaddata->buff_done = buf_id;
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-	}
-
-	return intr_count;
-}
-
-int had_process_buffer_done(struct snd_intelhad *intelhaddata)
-{
-	u32 len = 1;
-	enum intel_had_aud_buf_type buf_id;
-	enum intel_had_aud_buf_type buff_done;
-	struct pcm_stream_info *stream;
-	u32 buf_size;
-	struct had_stream_data *had_stream;
-	int intr_count;
-	enum had_status_stream		stream_type;
-	unsigned long flag_irqs;
-
-	had_stream = &intelhaddata->stream_data;
-	stream = &intelhaddata->stream_info;
-	intr_count = 1;
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_err("%s:Device already disconnected\n", __func__);
-		return 0;
-	}
-	buf_id = intelhaddata->curr_buf;
-	intelhaddata->buff_done = buf_id;
-	buff_done = intelhaddata->buff_done;
-	buf_size = intelhaddata->buf_info[buf_id].buf_size;
-	stream_type = had_stream->stream_type;
-
-	pr_debug("Enter:%s buf_id=%d\n", __func__, buf_id);
-
-	/* Every debug statement has an implication
-	 * of ~5msec. Thus, avoid having >3 debug statements
-	 * for each buffer_done handling.
-	 */
-
-	/* Check for any intr_miss in case of active playback */
-	if (had_stream->stream_type == HAD_RUNNING_STREAM) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		intr_count = had_chk_intrmiss(intelhaddata, buf_id);
-		if (!intr_count || (intr_count > 3)) {
-			pr_err("HAD SW state in non-recoverable!!! mode\n");
-			pr_err("Already played stale data\n");
-			return 0;
-		}
-		buf_id += (intr_count - 1);
-		buf_id = buf_id % 4;
-		spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	}
-
-	intelhaddata->buf_info[buf_id].is_valid = true;
-	if (intelhaddata->valid_buf_cnt-1 == buf_id) {
-		if (had_stream->stream_type >= HAD_RUNNING_STREAM)
-			intelhaddata->curr_buf = HAD_BUF_TYPE_A;
-	} else
-		intelhaddata->curr_buf = buf_id + 1;
-
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-
-	if (had_get_hwstate(intelhaddata)) {
-		pr_err("HDMI cable plugged-out\n");
-		return 0;
-	}
-
-	/*Reprogram the registers with addr and length*/
-	had_write_register(intelhaddata,
-			   AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
-			   buf_size);
-	had_write_register(intelhaddata,
-			   AUD_BUF_A_ADDR + (buf_id * HAD_REG_WIDTH),
-			   intelhaddata->buf_info[buf_id].buf_addr |
-			   BIT(0) | BIT(1));
-
-	had_read_register(intelhaddata,
-			  AUD_BUF_A_LENGTH + (buf_id * HAD_REG_WIDTH),
-			  &len);
-	pr_debug("%s:Enabled buf[%d]\n", __func__, buf_id);
-
-	/* In case of actual data,
-	 * report buffer_done to above ALSA layer
-	 */
-	buf_size =  intelhaddata->buf_info[buf_id].buf_size;
-	if (stream_type >= HAD_RUNNING_STREAM) {
-		intelhaddata->stream_info.buffer_rendered +=
-			(intr_count * buf_size);
-		stream->period_elapsed(stream->had_substream);
-	}
-
-	return 0;
-}
-
-int had_process_buffer_underrun(struct snd_intelhad *intelhaddata)
-{
-	enum intel_had_aud_buf_type buf_id;
-	struct pcm_stream_info *stream;
-	struct had_stream_data *had_stream;
-	enum had_status_stream stream_type;
-	unsigned long flag_irqs;
-	int drv_status;
-
-	had_stream = &intelhaddata->stream_data;
-	stream = &intelhaddata->stream_info;
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	buf_id = intelhaddata->curr_buf;
-	stream_type = had_stream->stream_type;
-	intelhaddata->buff_done = buf_id;
-	drv_status = intelhaddata->drv_status;
-	if (stream_type == HAD_RUNNING_STREAM)
-		intelhaddata->curr_buf = HAD_BUF_TYPE_A;
-
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-
-	pr_debug("Enter:%s buf_id=%d, stream_type=%d\n",
-			__func__, buf_id, stream_type);
-
-	snd_intelhad_handle_underrun(intelhaddata);
-
-	if (drv_status == HAD_DRV_DISCONNECTED) {
-		pr_err("%s:Device already disconnected\n", __func__);
-		return 0;
-	}
-
-	if (stream_type == HAD_RUNNING_STREAM) {
-		/* Report UNDERRUN error to above layers */
-		intelhaddata->flag_underrun = 1;
-		stream->period_elapsed(stream->had_substream);
-	}
-
-	return 0;
-}
-
-int had_process_hot_plug(struct snd_intelhad *intelhaddata)
-{
-	enum intel_had_aud_buf_type buf_id;
-	struct snd_pcm_substream *substream;
-	struct had_stream_data *had_stream;
-	unsigned long flag_irqs;
-
-	pr_debug("Enter:%s\n", __func__);
-
-	substream = intelhaddata->stream_info.had_substream;
-	had_stream = &intelhaddata->stream_data;
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	if (intelhaddata->drv_status == HAD_DRV_CONNECTED) {
-		pr_debug("Device already connected\n");
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		return 0;
-	}
-	buf_id = intelhaddata->curr_buf;
-	intelhaddata->buff_done = buf_id;
-	intelhaddata->drv_status = HAD_DRV_CONNECTED;
-	pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_CONNECTED\n",
-			__func__, __LINE__);
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-
-	pr_debug("Processing HOT_PLUG, buf_id = %d\n", buf_id);
-
-	/* Safety check */
-	if (substream) {
-		pr_debug("There should not be active PB from ALSA\n");
-		pr_debug("Signifies, cable is plugged-in even before\n");
-		pr_debug("processing snd_pcm_disconnect\n");
-		/* Set runtime->state to hw_params done */
-		snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
-	}
-
-	had_build_channel_allocation_map(intelhaddata);
-
-	return 0;
-}
-
-int had_process_hot_unplug(struct snd_intelhad *intelhaddata)
-{
-	enum intel_had_aud_buf_type buf_id;
-	struct had_stream_data *had_stream;
-	unsigned long flag_irqs;
-
-	pr_debug("Enter:%s\n", __func__);
-
-	had_stream = &intelhaddata->stream_data;
-	buf_id = intelhaddata->curr_buf;
-
-	spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-
-	if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
-		pr_debug("Device already disconnected\n");
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		return 0;
-
-	} else {
-		/* Disable Audio */
-		snd_intelhad_enable_audio_int(intelhaddata, false);
-		snd_intelhad_enable_audio(intelhaddata, false);
-	}
-
-	intelhaddata->drv_status = HAD_DRV_DISCONNECTED;
-	pr_debug("%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_DISCONNECTED\n",
-			__func__, __LINE__);
-
-	/* Report to above ALSA layer */
-	if (intelhaddata->stream_info.had_substream != NULL) {
-		spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-		pr_debug("%s: unlock -> sending pcm_stop -> lock\n", __func__);
-		snd_pcm_stop(intelhaddata->stream_info.had_substream,
-				SNDRV_PCM_STATE_SETUP);
-		spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
-	}
-
-	had_stream->stream_type = HAD_INIT;
-	spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
-	kfree(intelhaddata->chmap->chmap);
-	intelhaddata->chmap->chmap = NULL;
-	intelhaddata->audio_reg_base = NULL;
-	pr_debug("%s: unlocked -> returned\n", __func__);
-
-	return 0;
-}
-