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sound: soc: Add docking station jack support
Add docking station jack interrupt support to msm8994 audio machine driver. Change-Id: I0af9a78cee92554fe75d2fd3c33fe0be98fc2576 Signed-off-by: Tanya Finkel <tfinkel@codeaurora.org>
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Tanya Finkel
parent
2f0d7b70fe
commit
0dfb375b17
2 changed files with 150 additions and 0 deletions
20
sound/soc/msm/device_event.h
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20
sound/soc/msm/device_event.h
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@ -0,0 +1,20 @@
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/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __DEVICE_EVENT_H
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#define __DEVICE_EVENT_H
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#define QC_AUDIO_EXTERNAL_SPK_1_EVENT "qc_ext_spk_1"
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#define QC_AUDIO_EXTERNAL_SPK_2_EVENT "qc_ext_spk_2"
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#define QC_AUDIO_EXTERNAL_MIC_EVENT "qc_ext_mic"
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#endif /* __DEVICE_EVENT_H */
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@ -20,6 +20,7 @@
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#include <linux/regulator/consumer.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/switch.h>
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#include <sound/core.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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@ -27,6 +28,7 @@
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#include <sound/jack.h>
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#include <sound/q6afe-v2.h>
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#include <sound/pcm_params.h>
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#include <device_event.h>
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#include "qdsp6v2/msm-pcm-routing-v2.h"
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#include "qdsp6v2/q6core.h"
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#include "../codecs/wcd9xxx-common.h"
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@ -113,6 +115,16 @@ static int clk_users;
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static atomic_t prim_auxpcm_rsc_ref;
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static atomic_t sec_auxpcm_rsc_ref;
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struct msm8994_liquid_dock_dev {
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int dock_plug_gpio;
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int dock_plug_irq;
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int dock_plug_det;
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struct work_struct irq_work;
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struct switch_dev audio_sdev;
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};
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static struct msm8994_liquid_dock_dev *msm8994_liquid_dock_dev;
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static const char *const pin_states[] = {"Disable", "active"};
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static const char *const spk_function[] = {"Off", "On"};
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static const char *const slim0_rx_ch_text[] = {"One", "Two"};
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@ -199,6 +211,103 @@ static void param_set_mask(struct snd_pcm_hw_params *p, int n, unsigned bit)
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}
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}
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static void msm8994_liquid_docking_irq_work(struct work_struct *work)
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{
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struct msm8994_liquid_dock_dev *dock_dev =
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container_of(work, struct msm8994_liquid_dock_dev, irq_work);
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dock_dev->dock_plug_det =
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gpio_get_value(dock_dev->dock_plug_gpio);
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switch_set_state(&dock_dev->audio_sdev, dock_dev->dock_plug_det);
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/*notify to audio deamon*/
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sysfs_notify(&dock_dev->audio_sdev.dev->kobj, NULL, "state");
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}
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static irqreturn_t msm8994_liquid_docking_irq_handler(int irq, void *dev)
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{
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struct msm8994_liquid_dock_dev *dock_dev = dev;
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/* switch speakers should not run in interrupt context */
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schedule_work(&dock_dev->irq_work);
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return IRQ_HANDLED;
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}
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static int msm8994_liquid_init_docking(void)
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{
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int ret = 0;
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int dock_plug_gpio = 0;
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/* plug in docking speaker+plug in device OR unplug one of them */
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u32 dock_plug_irq_flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
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IRQF_SHARED;
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dock_plug_gpio = of_get_named_gpio(spdev->dev.of_node,
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"qcom,dock-plug-det-irq", 0);
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if (dock_plug_gpio >= 0) {
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msm8994_liquid_dock_dev =
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kzalloc(sizeof(*msm8994_liquid_dock_dev), GFP_KERNEL);
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if (!msm8994_liquid_dock_dev) {
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pr_err("msm8994_liquid_dock_dev alloc fail.\n");
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ret = -ENOMEM;
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goto exit;
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}
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msm8994_liquid_dock_dev->dock_plug_gpio = dock_plug_gpio;
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ret = gpio_request(msm8994_liquid_dock_dev->dock_plug_gpio,
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"dock-plug-det-irq");
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if (ret) {
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pr_err("%s:failed request msm8994_liquid_dock_plug_gpio err = %d\n",
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__func__, ret);
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ret = -EINVAL;
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goto fail_dock_gpio;
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}
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msm8994_liquid_dock_dev->dock_plug_det =
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gpio_get_value(msm8994_liquid_dock_dev->dock_plug_gpio);
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msm8994_liquid_dock_dev->dock_plug_irq =
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gpio_to_irq(msm8994_liquid_dock_dev->dock_plug_gpio);
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ret = request_irq(msm8994_liquid_dock_dev->dock_plug_irq,
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msm8994_liquid_docking_irq_handler,
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dock_plug_irq_flags,
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"liquid_dock_plug_irq",
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msm8994_liquid_dock_dev);
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if (ret < 0) {
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pr_err("%s: Request Irq Failed err = %d\n",
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__func__, ret);
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goto fail_dock_gpio;
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}
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msm8994_liquid_dock_dev->audio_sdev.name =
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QC_AUDIO_EXTERNAL_SPK_1_EVENT;
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if (switch_dev_register(
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&msm8994_liquid_dock_dev->audio_sdev) < 0) {
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pr_err("%s: dock device register in switch diretory failed\n",
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__func__);
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goto fail_switch_dev;
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}
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INIT_WORK(
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&msm8994_liquid_dock_dev->irq_work,
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msm8994_liquid_docking_irq_work);
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}
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return 0;
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fail_switch_dev:
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free_irq(msm8994_liquid_dock_dev->dock_plug_irq,
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msm8994_liquid_dock_dev);
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fail_dock_gpio:
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gpio_free(msm8994_liquid_dock_dev->dock_plug_gpio);
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exit:
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kfree(msm8994_liquid_dock_dev);
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msm8994_liquid_dock_dev = NULL;
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return ret;
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}
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static void msm8994_ext_control(struct snd_soc_codec *codec)
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{
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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@ -1469,6 +1578,13 @@ static int msm_audrx_init(struct snd_soc_pcm_runtime *rtd)
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return err;
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}
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err = msm8994_liquid_init_docking();
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if (err) {
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pr_err("%s: 8994 init Docking stat IRQ failed (%d)\n",
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__func__, err);
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return err;
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}
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err = msm8994_ext_us_amp_init();
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if (err) {
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pr_err("%s: MTP 8994 US Emitter GPIO init failed (%d)\n",
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@ -2961,6 +3077,20 @@ static int msm8994_asoc_machine_remove(struct platform_device *pdev)
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gpio_free(pdata->mclk_gpio);
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gpio_free(pdata->us_euro_gpio);
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if (msm8994_liquid_dock_dev != NULL) {
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switch_dev_unregister(&msm8994_liquid_dock_dev->audio_sdev);
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if (msm8994_liquid_dock_dev->dock_plug_irq)
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free_irq(msm8994_liquid_dock_dev->dock_plug_irq,
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msm8994_liquid_dock_dev);
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if (msm8994_liquid_dock_dev->dock_plug_gpio)
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gpio_free(msm8994_liquid_dock_dev->dock_plug_gpio);
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kfree(msm8994_liquid_dock_dev);
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msm8994_liquid_dock_dev = NULL;
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}
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msm_auxpcm_release_pinctrl(pdev, SEC_MI2S_PCM);
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msm_mi2s_release_pinctrl(pdev, PRI_MI2S_PCM);
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snd_soc_unregister_card(card);
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