/* * tosa.c -- SoC audio for Tosa * * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. * * Authors: Liam Girdwood * Richard Purdie * * 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. * * GPIO's * 1 - Jack Insertion * 5 - Hookswitch (headset answer/hang up switch) * */ #include #include #include #include #include #include #include #include #include #include #include "pxa2xx-ac97.h" #define TOSA_HP 0 #define TOSA_MIC_INT 1 #define TOSA_HEADSET 2 #define TOSA_HP_OFF 3 #define TOSA_SPK_ON 0 #define TOSA_SPK_OFF 1 static int tosa_jack_func; static int tosa_spk_func; static void tosa_ext_control(struct snd_soc_dapm_context *dapm) { snd_soc_dapm_mutex_lock(dapm); /* set up jack connection */ switch (tosa_jack_func) { case TOSA_HP: snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); break; case TOSA_MIC_INT: snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)"); snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); break; case TOSA_HEADSET: snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)"); snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack"); break; } if (tosa_spk_func == TOSA_SPK_ON) snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker"); else snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker"); snd_soc_dapm_sync_unlocked(dapm); snd_soc_dapm_mutex_unlock(dapm); } static int tosa_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; /* check the jack status at stream startup */ tosa_ext_control(&rtd->card->dapm); return 0; } static struct snd_soc_ops tosa_ops = { .startup = tosa_startup, }; static int tosa_get_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.enumerated.item[0] = tosa_jack_func; return 0; } static int tosa_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (tosa_jack_func == ucontrol->value.enumerated.item[0]) return 0; tosa_jack_func = ucontrol->value.enumerated.item[0]; tosa_ext_control(&card->dapm); return 1; } static int tosa_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.enumerated.item[0] = tosa_spk_func; return 0; } static int tosa_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (tosa_spk_func == ucontrol->value.enumerated.item[0]) return 0; tosa_spk_func = ucontrol->value.enumerated.item[0]; tosa_ext_control(&card->dapm); return 1; } /* tosa dapm event handlers */ static int tosa_hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0); return 0; } /* tosa machine dapm widgets */ static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event), SND_SOC_DAPM_HP("Headset Jack", NULL), SND_SOC_DAPM_MIC("Mic (Internal)", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), }; /* tosa audio map */ static const struct snd_soc_dapm_route audio_map[] = { /* headphone connected to HPOUTL, HPOUTR */ {"Headphone Jack", NULL, "HPOUTL"}, {"Headphone Jack", NULL, "HPOUTR"}, /* ext speaker connected to LOUT2, ROUT2 */ {"Speaker", NULL, "LOUT2"}, {"Speaker", NULL, "ROUT2"}, /* internal mic is connected to mic1, mic2 differential - with bias */ {"MIC1", NULL, "Mic Bias"}, {"MIC2", NULL, "Mic Bias"}, {"Mic Bias", NULL, "Mic (Internal)"}, /* headset is connected to HPOUTR, and LINEINR with bias */ {"Headset Jack", NULL, "HPOUTR"}, {"LINEINR", NULL, "Mic Bias"}, {"Mic Bias", NULL, "Headset Jack"}, }; static const char * const jack_function[] = {"Headphone", "Mic", "Line", "Headset", "Off"}; static const char * const spk_function[] = {"On", "Off"}; static const struct soc_enum tosa_enum[] = { SOC_ENUM_SINGLE_EXT(5, jack_function), SOC_ENUM_SINGLE_EXT(2, spk_function), }; static const struct snd_kcontrol_new tosa_controls[] = { SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack, tosa_set_jack), SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk, tosa_set_spk), }; static struct snd_soc_dai_link tosa_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai_name = "pxa2xx-ac97", .codec_dai_name = "wm9712-hifi", .platform_name = "pxa-pcm-audio", .codec_name = "wm9712-codec", .ops = &tosa_ops, }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai_name = "pxa2xx-ac97-aux", .codec_dai_name = "wm9712-aux", .platform_name = "pxa-pcm-audio", .codec_name = "wm9712-codec", .ops = &tosa_ops, }, }; static struct snd_soc_card tosa = { .name = "Tosa", .owner = THIS_MODULE, .dai_link = tosa_dai, .num_links = ARRAY_SIZE(tosa_dai), .controls = tosa_controls, .num_controls = ARRAY_SIZE(tosa_controls), .dapm_widgets = tosa_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), .fully_routed = true, }; static int tosa_probe(struct platform_device *pdev) { struct snd_soc_card *card = ⤩ int ret; ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW, "Headphone Jack"); if (ret) return ret; card->dev = &pdev->dev; ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); gpio_free(TOSA_GPIO_L_MUTE); } return ret; } static int tosa_remove(struct platform_device *pdev) { gpio_free(TOSA_GPIO_L_MUTE); return 0; } static struct platform_driver tosa_driver = { .driver = { .name = "tosa-audio", .pm = &snd_soc_pm_ops, }, .probe = tosa_probe, .remove = tosa_remove, }; module_platform_driver(tosa_driver); /* Module information */ MODULE_AUTHOR("Richard Purdie"); MODULE_DESCRIPTION("ALSA SoC Tosa"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:tosa-audio"); [drm_kms_helper] intel_atomic_commit_tail+0x749/0xfe0 [i915] intel_atomic_commit+0x3cb/0x4f0 [i915] drm_atomic_commit+0x4b/0x50 [drm] restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper] drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper] intel_fbdev_set_par+0x18/0x70 [i915] fb_set_var+0x236/0x460 fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/soc/codecs/wm8985.h')