sound: soc: Add docking station jack support (0dfb375b) · Commits · e / devices / android_kernel_sony_msm8994

sound/soc/msm/device_event.h

0 → 100644

+20 −0

Original line number	Diff line number	Diff line
		/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* 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.
		*/

		#ifndef __DEVICE_EVENT_H
		#define __DEVICE_EVENT_H

		#define QC_AUDIO_EXTERNAL_SPK_1_EVENT "qc_ext_spk_1"
		#define QC_AUDIO_EXTERNAL_SPK_2_EVENT "qc_ext_spk_2"
		#define QC_AUDIO_EXTERNAL_MIC_EVENT "qc_ext_mic"

		#endif /* __DEVICE_EVENT_H */

sound/soc/msm/msm8994.c

+130 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@
		#include <linux/regulator/consumer.h>
		#include <linux/io.h>
		#include <linux/module.h>
		#include <linux/switch.h>
		#include <sound/core.h>
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		@@ -27,6 +28,7 @@
		#include <sound/jack.h>
		#include <sound/q6afe-v2.h>
		#include <sound/pcm_params.h>
		#include <device_event.h>
		#include "qdsp6v2/msm-pcm-routing-v2.h"
		#include "qdsp6v2/q6core.h"
		#include "../codecs/wcd9xxx-common.h"
		@@ -113,6 +115,16 @@ static int clk_users;
		static atomic_t prim_auxpcm_rsc_ref;
		static atomic_t sec_auxpcm_rsc_ref;

		struct msm8994_liquid_dock_dev {
		int dock_plug_gpio;
		int dock_plug_irq;
		int dock_plug_det;
		struct work_struct irq_work;
		struct switch_dev audio_sdev;
		};

		static struct msm8994_liquid_dock_dev *msm8994_liquid_dock_dev;

		static const char *const pin_states[] = {"Disable", "active"};
		static const char *const spk_function[] = {"Off", "On"};
		static const char *const slim0_rx_ch_text[] = {"One", "Two"};
		@@ -199,6 +211,103 @@ static void param_set_mask(struct snd_pcm_hw_params *p, int n, unsigned bit)
		}
		}

		static void msm8994_liquid_docking_irq_work(struct work_struct *work)
		{
		struct msm8994_liquid_dock_dev *dock_dev =
		container_of(work, struct msm8994_liquid_dock_dev, irq_work);

		dock_dev->dock_plug_det =
		gpio_get_value(dock_dev->dock_plug_gpio);

		switch_set_state(&dock_dev->audio_sdev, dock_dev->dock_plug_det);
		/notify to audio deamon/
		sysfs_notify(&dock_dev->audio_sdev.dev->kobj, NULL, "state");
		}

		static irqreturn_t msm8994_liquid_docking_irq_handler(int irq, void *dev)
		{
		struct msm8994_liquid_dock_dev *dock_dev = dev;

		/* switch speakers should not run in interrupt context */
		schedule_work(&dock_dev->irq_work);
		return IRQ_HANDLED;
		}

		static int msm8994_liquid_init_docking(void)
		{
		int ret = 0;
		int dock_plug_gpio = 0;

		/* plug in docking speaker+plug in device OR unplug one of them */
		u32 dock_plug_irq_flags = IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING \|
		IRQF_SHARED;

		dock_plug_gpio = of_get_named_gpio(spdev->dev.of_node,
		"qcom,dock-plug-det-irq", 0);

		if (dock_plug_gpio >= 0) {
		msm8994_liquid_dock_dev =
		kzalloc(sizeof(*msm8994_liquid_dock_dev), GFP_KERNEL);
		if (!msm8994_liquid_dock_dev) {
		pr_err("msm8994_liquid_dock_dev alloc fail.\n");
		ret = -ENOMEM;
		goto exit;
		}

		msm8994_liquid_dock_dev->dock_plug_gpio = dock_plug_gpio;

		ret = gpio_request(msm8994_liquid_dock_dev->dock_plug_gpio,
		"dock-plug-det-irq");
		if (ret) {
		pr_err("%s:failed request msm8994_liquid_dock_plug_gpio err = %d\n",
		__func__, ret);
		ret = -EINVAL;
		goto fail_dock_gpio;
		}

		msm8994_liquid_dock_dev->dock_plug_det =
		gpio_get_value(msm8994_liquid_dock_dev->dock_plug_gpio);
		msm8994_liquid_dock_dev->dock_plug_irq =
		gpio_to_irq(msm8994_liquid_dock_dev->dock_plug_gpio);

		ret = request_irq(msm8994_liquid_dock_dev->dock_plug_irq,
		msm8994_liquid_docking_irq_handler,
		dock_plug_irq_flags,
		"liquid_dock_plug_irq",
		msm8994_liquid_dock_dev);
		if (ret < 0) {
		pr_err("%s: Request Irq Failed err = %d\n",
		__func__, ret);
		goto fail_dock_gpio;
		}

		msm8994_liquid_dock_dev->audio_sdev.name =
		QC_AUDIO_EXTERNAL_SPK_1_EVENT;

		if (switch_dev_register(
		&msm8994_liquid_dock_dev->audio_sdev) < 0) {
		pr_err("%s: dock device register in switch diretory failed\n",
		__func__);
		goto fail_switch_dev;
		}

		INIT_WORK(
		&msm8994_liquid_dock_dev->irq_work,
		msm8994_liquid_docking_irq_work);
		}
		return 0;

		fail_switch_dev:
		free_irq(msm8994_liquid_dock_dev->dock_plug_irq,
		msm8994_liquid_dock_dev);
		fail_dock_gpio:
		gpio_free(msm8994_liquid_dock_dev->dock_plug_gpio);
		exit:
		kfree(msm8994_liquid_dock_dev);
		msm8994_liquid_dock_dev = NULL;
		return ret;
		}

		static void msm8994_ext_control(struct snd_soc_codec *codec)
		{
		struct snd_soc_dapm_context *dapm = &codec->dapm;
		@@ -1469,6 +1578,13 @@ static int msm_audrx_init(struct snd_soc_pcm_runtime *rtd)
		return err;
		}

		err = msm8994_liquid_init_docking();
		if (err) {
		pr_err("%s: 8994 init Docking stat IRQ failed (%d)\n",
		__func__, err);
		return err;
		}

		err = msm8994_ext_us_amp_init();
		if (err) {
		pr_err("%s: MTP 8994 US Emitter GPIO init failed (%d)\n",
		@@ -2961,6 +3077,20 @@ static int msm8994_asoc_machine_remove(struct platform_device *pdev)

		gpio_free(pdata->mclk_gpio);
		gpio_free(pdata->us_euro_gpio);

		if (msm8994_liquid_dock_dev != NULL) {
		switch_dev_unregister(&msm8994_liquid_dock_dev->audio_sdev);

		if (msm8994_liquid_dock_dev->dock_plug_irq)
		free_irq(msm8994_liquid_dock_dev->dock_plug_irq,
		msm8994_liquid_dock_dev);

		if (msm8994_liquid_dock_dev->dock_plug_gpio)
		gpio_free(msm8994_liquid_dock_dev->dock_plug_gpio);

		kfree(msm8994_liquid_dock_dev);
		msm8994_liquid_dock_dev = NULL;
		}
		msm_auxpcm_release_pinctrl(pdev, SEC_MI2S_PCM);
		msm_mi2s_release_pinctrl(pdev, PRI_MI2S_PCM);
		snd_soc_unregister_card(card);