From patchwork Thu Sep 1 07:47:40 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 9308527 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C1078607D2 for ; Thu, 1 Sep 2016 07:47:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC82129248 for ; Thu, 1 Sep 2016 07:47:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A12262924A; Thu, 1 Sep 2016 07:47:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 621CF29248 for ; Thu, 1 Sep 2016 07:47:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9892B6E8B2; Thu, 1 Sep 2016 07:47:42 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 60FD46E8B2 for ; Thu, 1 Sep 2016 07:47:41 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP; 01 Sep 2016 00:47:40 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.30,266,1470726000"; d="scan'208"; a="1044291308" Received: from orsmsx110.amr.corp.intel.com ([10.22.240.8]) by orsmga002.jf.intel.com with ESMTP; 01 Sep 2016 00:47:40 -0700 Received: from orsmsx109.amr.corp.intel.com ([169.254.11.150]) by ORSMSX110.amr.corp.intel.com ([169.254.10.94]) with mapi id 14.03.0248.002; Thu, 1 Sep 2016 00:47:40 -0700 From: "Pandiyan, Dhinakaran" To: "intel-gfx@lists.freedesktop.org" Thread-Topic: [PATCH v4] drm/i915/dp: DP audio API changes for MST Thread-Index: AQHSBCO0M6F5oUJ5+Uiui42bxNu3+KBkQKMd Date: Thu, 1 Sep 2016 07:47:40 +0000 Message-ID: References: <1472716236-2846-1-git-send-email-dhinakaran.pandiyan@intel.com> In-Reply-To: <1472716236-2846-1-git-send-email-dhinakaran.pandiyan@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.3.86.135] MIME-Version: 1.0 Cc: "alsa-devel@alsa-project.org" , "tiwai@suse.de" , "Kp, Jeeja" , "libin.yang@linux.intel.com" Subject: Re: [Intel-gfx] [PATCH v4] drm/i915/dp: DP audio API changes for MST X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP The changes in this version are primarily in i915. I have carried over Takashi's R-B from the previous version and removed Ville's. diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index aaa9c60..dac81c7 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2056,7 +2056,8 @@ struct drm_i915_private { /* perform PHY state sanity checks? */ bool chv_phy_assert[2]; - struct intel_encoder *dig_port_map[I915_MAX_PORTS]; + /* Used to save the pipe-to-encoder mapping for audio */ + struct intel_encoder *av_enc_map[I915_MAX_PIPES]; /* * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index 40fbdd8..9583f43 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -491,6 +491,7 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder) struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct i915_audio_component *acomp = dev_priv->audio_component; enum port port = intel_encoder->port; + enum pipe pipe = crtc->pipe; connector = drm_select_eld(encoder); if (!connector) @@ -515,12 +516,18 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder) mutex_lock(&dev_priv->av_mutex); intel_encoder->audio_connector = connector; + /* referred in audio callbacks */ - dev_priv->dig_port_map[port] = intel_encoder; + dev_priv->av_enc_map[pipe] = intel_encoder; mutex_unlock(&dev_priv->av_mutex); + /* audio drivers expect pipe = -1 to indicate Non-MST cases */ + if (intel_encoder->type != INTEL_OUTPUT_DP_MST) + pipe = -1; + if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) - acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, (int) port); + acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, + (int) port, (int) pipe); } /** @@ -536,17 +543,24 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder) struct drm_i915_private *dev_priv = to_i915(encoder->dev); struct i915_audio_component *acomp = dev_priv->audio_component; enum port port = intel_encoder->port; + struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); + enum pipe pipe = crtc->pipe; if (dev_priv->display.audio_codec_disable) dev_priv->display.audio_codec_disable(intel_encoder); mutex_lock(&dev_priv->av_mutex); intel_encoder->audio_connector = NULL; - dev_priv->dig_port_map[port] = NULL; + dev_priv->av_enc_map[pipe] = NULL; mutex_unlock(&dev_priv->av_mutex); + /* audio drivers expect pipe = -1 to indicate Non-MST cases */ + if (intel_encoder->type != INTEL_OUTPUT_DP_MST) + pipe = -1; + if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) - acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, (int) port); + acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, + (int) port, (int) pipe); } /** @@ -621,15 +635,40 @@ static int i915_audio_component_get_cdclk_freq(struct device *kdev) return dev_priv->cdclk_freq; } -static int i915_audio_component_sync_audio_rate(struct device *kdev, - int port, int rate) +static struct intel_encoder *get_saved_enc(struct drm_i915_private *dev_priv, + int port, int pipe) +{ + + if (WARN_ON(pipe >= I915_MAX_PIPES)) + return NULL; + + /* MST */ + if (pipe >= 0) + return dev_priv->av_enc_map[pipe]; + + /* Non-MST */ + for_each_pipe(dev_priv, pipe) { + struct intel_encoder *encoder; + + encoder = dev_priv->av_enc_map[pipe]; + if (encoder == NULL) + continue; + + if (port == encoder->port) + return encoder; + } + + return NULL; +} + +static int i915_audio_component_sync_audio_rate(struct device *kdev, int port, + int pipe, int rate) { struct drm_i915_private *dev_priv = kdev_to_i915(kdev); struct intel_encoder *intel_encoder; struct intel_crtc *crtc; struct drm_display_mode *mode; struct i915_audio_component *acomp = dev_priv->audio_component; - enum pipe pipe = INVALID_PIPE; u32 tmp; int n; int err = 0; @@ -643,25 +682,20 @@ static int i915_audio_component_sync_audio_rate(struct device *kdev, i915_audio_component_get_power(kdev); mutex_lock(&dev_priv->av_mutex); + /* 1. get the pipe */ - intel_encoder = dev_priv->dig_port_map[port]; - /* intel_encoder might be NULL for DP MST */ + intel_encoder = get_saved_enc(dev_priv, port, pipe); if (!intel_encoder || !intel_encoder->base.crtc || intel_encoder->type != INTEL_OUTPUT_HDMI) { - DRM_DEBUG_KMS("no valid port %c\n", port_name(port)); + DRM_DEBUG_KMS("Not valid for port %c\n", port_name(port)); err = -ENODEV; goto unlock; } + + /* pipe passed from the audio driver will be -1 for Non-MST case */ crtc = to_intel_crtc(intel_encoder->base.crtc); pipe = crtc->pipe; - if (pipe == INVALID_PIPE) { - DRM_DEBUG_KMS("no pipe for the port %c\n", port_name(port)); - err = -ENODEV; - goto unlock; - } - DRM_DEBUG_KMS("pipe %c connects port %c\n", - pipe_name(pipe), port_name(port)); mode = &crtc->config->base.adjusted_mode; /* port must be valid now, otherwise the pipe will be invalid */ @@ -697,7 +731,7 @@ static int i915_audio_component_sync_audio_rate(struct device *kdev, } static int i915_audio_component_get_eld(struct device *kdev, int port, - bool *enabled, + int pipe, bool *enabled, unsigned char *buf, int max_bytes) { struct drm_i915_private *dev_priv = kdev_to_i915(kdev); @@ -706,16 +740,20 @@ static int i915_audio_component_get_eld(struct device *kdev, int port, int ret = -EINVAL; mutex_lock(&dev_priv->av_mutex); - intel_encoder = dev_priv->dig_port_map[port]; - /* intel_encoder might be NULL for DP MST */ - if (intel_encoder) { - ret = 0; - *enabled = intel_encoder->audio_connector != NULL; - if (*enabled) { - eld = intel_encoder->audio_connector->eld; - ret = drm_eld_size(eld); - memcpy(buf, eld, min(max_bytes, ret)); - } + + intel_encoder = get_saved_enc(dev_priv, port, pipe); + if (!intel_encoder) { + DRM_DEBUG_KMS("Not valid for port %c\n", port_name(port)); + mutex_unlock(&dev_priv->av_mutex); + return ret; + } + + ret = 0; + *enabled = intel_encoder->audio_connector != NULL; + if (*enabled) { + eld = intel_encoder->audio_connector->eld; + ret = drm_eld_size(eld); + memcpy(buf, eld, min(max_bytes, ret)); } mutex_unlock(&dev_priv->av_mutex); diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index b46fa0e..545c6e0 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -64,7 +64,7 @@ struct i915_audio_component_ops { * Called from audio driver. After audio driver sets the * sample rate, it will call this function to set n/cts */ - int (*sync_audio_rate)(struct device *, int port, int rate); + int (*sync_audio_rate)(struct device *, int port, int pipe, int rate); /** * @get_eld: fill the audio state and ELD bytes for the given port * @@ -77,7 +77,7 @@ struct i915_audio_component_ops { * Note that the returned size may be over @max_bytes. Then it * implies that only a part of ELD has been copied to the buffer. */ - int (*get_eld)(struct device *, int port, bool *enabled, + int (*get_eld)(struct device *, int port, int pipe, bool *enabled, unsigned char *buf, int max_bytes); }; @@ -97,7 +97,7 @@ struct i915_audio_component_audio_ops { * status accordingly (even when the HDA controller is in power save * mode). */ - void (*pin_eld_notify)(void *audio_ptr, int port); + void (*pin_eld_notify)(void *audio_ptr, int port, int pipe); }; /** diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h index 796cabf..5ab972e 100644 --- a/include/sound/hda_i915.h +++ b/include/sound/hda_i915.h @@ -10,8 +10,9 @@ int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable); int snd_hdac_display_power(struct hdac_bus *bus, bool enable); void snd_hdac_i915_set_bclk(struct hdac_bus *bus); -int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, int rate); -int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, +int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, + int dev_id, int rate); +int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id, bool *audio_enabled, char *buffer, int max_bytes); int snd_hdac_i915_init(struct hdac_bus *bus); int snd_hdac_i915_exit(struct hdac_bus *bus); @@ -29,13 +30,13 @@ static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus) { } static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec, - hda_nid_t nid, int rate) + hda_nid_t nid, int dev_id, int rate) { return 0; } static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, - bool *audio_enabled, char *buffer, - int max_bytes) + int dev_id, bool *audio_enabled, + char *buffer, int max_bytes) { return -ENODEV; } diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index c9af022..1979b49 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -201,18 +201,20 @@ static int pin2port(struct hdac_device *codec, hda_nid_t pin_nid) * This function sets N/CTS value based on the given sample rate. * Returns zero for success, or a negative error code. */ -int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, int rate) +int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, + int dev_id, int rate) { struct hdac_bus *bus = codec->bus; struct i915_audio_component *acomp = bus->audio_component; - int port; + int port, pipe; if (!acomp || !acomp->ops || !acomp->ops->sync_audio_rate) return -ENODEV; port = pin2port(codec, nid); if (port < 0) return -EINVAL; - return acomp->ops->sync_audio_rate(acomp->dev, port, rate); + pipe = dev_id; + return acomp->ops->sync_audio_rate(acomp->dev, port, pipe, rate); } EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate); @@ -236,12 +238,12 @@ EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate); * thus it may be over @max_bytes. If it's over @max_bytes, it implies * that only a part of ELD bytes have been fetched. */ -int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, +int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id, bool *audio_enabled, char *buffer, int max_bytes) { struct hdac_bus *bus = codec->bus; struct i915_audio_component *acomp = bus->audio_component; - int port; + int port, pipe; if (!acomp || !acomp->ops || !acomp->ops->get_eld) return -ENODEV; @@ -249,7 +251,9 @@ int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, port = pin2port(codec, nid); if (port < 0) return -EINVAL; - return acomp->ops->get_eld(acomp->dev, port, audio_enabled, + + pipe = dev_id; + return acomp->ops->get_eld(acomp->dev, port, pipe, audio_enabled, buffer, max_bytes); } EXPORT_SYMBOL_GPL(snd_hdac_acomp_get_eld); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 56e5204..cf9bc042 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1485,7 +1485,7 @@ static void sync_eld_via_acomp(struct hda_codec *codec, mutex_lock(&per_pin->lock); eld->monitor_present = false; - size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid, + size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid, -1, &eld->monitor_present, eld->eld_buffer, ELD_MAX_SIZE); if (size > 0) { @@ -1744,7 +1744,8 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo, /* Call sync_audio_rate to set the N/CTS/M manually if necessary */ /* Todo: add DP1.2 MST audio support later */ if (codec_has_acomp(codec)) - snd_hdac_sync_audio_rate(&codec->core, pin_nid, runtime->rate); + snd_hdac_sync_audio_rate(&codec->core, pin_nid, -1, + runtime->rate); non_pcm = check_non_pcm_per_cvt(codec, cvt_nid); mutex_lock(&per_pin->lock); @@ -2290,7 +2291,7 @@ static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg, snd_hda_codec_set_power_to_all(codec, fg, power_state); } -static void intel_pin_eld_notify(void *audio_ptr, int port) +static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe) { struct hda_codec *codec = audio_ptr; int pin_nid; diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 4e181b2..dc0129b 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1368,7 +1368,7 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev, return hdac_hdmi_init_dai_map(edev); } -static void hdac_hdmi_eld_notify_cb(void *aptr, int port) +static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe) { struct hdac_ext_device *edev = aptr; struct hdac_hdmi_priv *hdmi = edev->private_data;