From cdd03cedc5b55da017fcdeff7d47cac2639cded8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 20 Apr 2012 12:34:50 +0200 Subject: ALSA: hda - Introduce snd_hda_set_pin_ctl*() helper functions For setting the pin-control values more safely to match with the actual pin capability bits, a copule of new helper functions, snd_hda_set_pin_ctl() and snd_hda_set_pin_ctl_cache(), are introduced. These are simple replacement of the codec verb write with AC_VERB_SET_PIN_WIDGET but do more sanity checks and filter out superfluous pin-control bits if they don't fit with the corresponding pin capabilities. Some codecs are screwed up or ignore the command when such a wrong bit is set. These helpers will avoid such secret errors. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 7a8fcc4..2d9716e 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4795,6 +4795,32 @@ int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, } EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup); +int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, + unsigned int val, bool cached) +{ + if (val) { + unsigned int cap = snd_hda_query_pin_caps(codec, pin); + if (val & AC_PINCTL_OUT_EN) { + if (!(cap & AC_PINCAP_OUT)) + val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); + else if ((val & AC_PINCTL_HP_EN) && + !(cap & AC_PINCAP_HP_DRV)) + val &= ~AC_PINCTL_HP_EN; + } + if (val & AC_PINCTL_IN_EN) { + if (!(cap & AC_PINCAP_IN)) + val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); + } + } + if (cached) + return snd_hda_codec_update_cache(codec, pin, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, val); + else + return snd_hda_codec_write(codec, pin, 0, + AC_VERB_SET_PIN_WIDGET_CONTROL, val); +} +EXPORT_SYMBOL_HDA(_snd_hda_set_pin_ctl); + /* * Helper for automatic pin configuration */ -- cgit v1.1 From 4740860b534e86d7db3b26cbd980bec8e4c807e8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 20 Apr 2012 13:06:53 +0200 Subject: ALSA: hda - Add snd_hda_get_default_vref() helper function Add a new helper function to guess the default VREF pin control bits for mic in. This can be used to set the pin control value safely matching with the actual pin capabilities. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 2d9716e..8b8b74a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4795,6 +4795,33 @@ int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, } EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup); +/** + * snd_hda_get_default_vref - Get the default (mic) VREF pin bits + * + * Guess the suitable VREF pin bits to be set as the pin-control value. + * Note: the function doesn't set the AC_PINCTL_IN_EN bit. + */ +unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin) +{ + unsigned int pincap; + unsigned int oldval; + oldval = snd_hda_codec_read(codec, pin, 0, + AC_VERB_GET_PIN_WIDGET_CONTROL, 0); + pincap = snd_hda_query_pin_caps(codec, pin); + pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT; + /* Exception: if the default pin setup is vref50, we give it priority */ + if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50) + return AC_PINCTL_VREF_80; + else if (pincap & AC_PINCAP_VREF_50) + return AC_PINCTL_VREF_50; + else if (pincap & AC_PINCAP_VREF_100) + return AC_PINCTL_VREF_100; + else if (pincap & AC_PINCAP_VREF_GRD) + return AC_PINCTL_VREF_GRD; + return AC_PINCTL_VREF_HIZ; +} +EXPORT_SYMBOL_HDA(snd_hda_get_default_vref); + int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val, bool cached) { -- cgit v1.1 From 6942c103fb4b0ce91be910a716044ac181a9c2dd Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 20 Apr 2012 13:08:40 +0200 Subject: ALSA: hda - Skip pin capability sanity check for bogus values Some old codecs like ALC880 seem to give a bogus pin capability value 0 occasionally. This breaks the new sanity check in snd_hda_set_pin_ctl(). Skip the sanity checks in such a case. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 8b8b74a..408613c 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4827,14 +4827,14 @@ int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, { if (val) { unsigned int cap = snd_hda_query_pin_caps(codec, pin); - if (val & AC_PINCTL_OUT_EN) { + if (cap && (val & AC_PINCTL_OUT_EN)) { if (!(cap & AC_PINCAP_OUT)) val &= ~(AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN); else if ((val & AC_PINCTL_HP_EN) && !(cap & AC_PINCAP_HP_DRV)) val &= ~AC_PINCTL_HP_EN; } - if (val & AC_PINCTL_IN_EN) { + if (cap && (val & AC_PINCTL_IN_EN)) { if (!(cap & AC_PINCAP_IN)) val &= ~(AC_PINCTL_IN_EN | AC_PINCTL_VREFEN); } -- cgit v1.1 From c382a9f009d7332e16919154e01f5554eeb095ed Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 7 May 2012 15:01:02 +0200 Subject: ALSA: hda - Fix possible access to uninitialized work struct The work struct must be initialized before the possible call in the destructor. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 393a304..98976c8 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1264,13 +1264,6 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8); snd_array_init(&codec->conn_lists, sizeof(hda_nid_t), 64); snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); - if (codec->bus->modelname) { - codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); - if (!codec->modelname) { - snd_hda_codec_free(codec); - return -ENODEV; - } - } #ifdef CONFIG_SND_HDA_POWER_SAVE INIT_DELAYED_WORK(&codec->power_work, hda_power_work); @@ -1281,6 +1274,14 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, hda_keep_power_on(codec); #endif + if (codec->bus->modelname) { + codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); + if (!codec->modelname) { + snd_hda_codec_free(codec); + return -ENODEV; + } + } + list_add_tail(&codec->list, &bus->codec_list); bus->caddr_tbl[codec_addr] = codec; -- cgit v1.1 From 7f30830b7b82e5225c38a48b387e44f3defe40e2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 8 May 2012 16:52:23 +0200 Subject: ALSA: hda - Always resume the codec immediately This is a fix for the problem in commit 785f857d1c, the pop noise issue on some machines with ALC269. The problem was the uninitialized state after the resume due to the delayed resume of the codec chips. In that commit, we tried to fix by forcibly putting the codec to D3 at suspend. But, this still also leaves the uninitialized state after resume, and it _might_ be still problematic with some BIOS. Since the commit turned out to regress another issues, we reverted it in the end. Now, in this fix, try to fix by turning on the codec immediately at the resume path. We need to take care of the power-saving in this case. When the device is woken up at the power-saved state, it should go power-saving again after the resume. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 98976c8..e134e72 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -3500,6 +3500,10 @@ static void hda_call_codec_suspend(struct hda_codec *codec) */ static void hda_call_codec_resume(struct hda_codec *codec) { + /* set as if powered on for avoiding re-entering the resume + * in the resume / power-save sequence + */ + hda_keep_power_on(codec); hda_set_power_state(codec, codec->afg ? codec->afg : codec->mfg, AC_PWRST_D0); @@ -3515,6 +3519,7 @@ static void hda_call_codec_resume(struct hda_codec *codec) snd_hda_codec_resume_amp(codec); snd_hda_codec_resume_cache(codec); } + snd_hda_power_down(codec); /* flag down before returning */ } #endif /* CONFIG_PM */ @@ -4332,6 +4337,7 @@ void snd_hda_power_up(struct hda_codec *codec) snd_hda_update_power_acct(codec); codec->power_on = 1; codec->power_jiffies = jiffies; + codec->power_transition = 1; /* avoid reentrance */ if (bus->ops.pm_notify) bus->ops.pm_notify(bus); hda_call_codec_resume(codec); @@ -5521,8 +5527,7 @@ int snd_hda_resume(struct hda_bus *bus) list_for_each_entry(codec, &bus->codec_list, list) { if (codec->patch_ops.pre_resume) codec->patch_ops.pre_resume(codec); - if (snd_hda_codec_needs_resume(codec)) - hda_call_codec_resume(codec); + hda_call_codec_resume(codec); } return 0; } -- cgit v1.1 From 339876d70a5794c0d5fe09d37827c63148d5017a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 8 May 2012 16:57:12 +0200 Subject: ALSA: hda - Clear the power-saving states properly at reset Some power-saving states have been left unchanged in snd_hda_codec_reset(), and this is a potential danger because the function may be called in various situations including the continuous operation after that call. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index e134e72..8bd3432 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2265,6 +2265,9 @@ int snd_hda_codec_reset(struct hda_codec *codec) #ifdef CONFIG_SND_HDA_POWER_SAVE cancel_delayed_work(&codec->power_work); + codec->power_on = 0; + codec->power_transition = 0; + codec->power_jiffies = jiffies; flush_workqueue(codec->bus->workq); #endif snd_hda_ctls_clear(codec); -- cgit v1.1 From 5536c6d69376273d5210ce05b7d5d462f0dff9d6 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 8 May 2012 17:08:10 +0200 Subject: ALSA: hda - Protect the power-saving count with spinlock To avoid some races. Still not perfect, but now a bit safer. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 8bd3432..30a3d8f 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1266,6 +1266,7 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16); #ifdef CONFIG_SND_HDA_POWER_SAVE + spin_lock_init(&codec->power_lock); INIT_DELAYED_WORK(&codec->power_work, hda_power_work); /* snd_hda_codec_new() marks the codec as power-up, and leave it as is. * the caller has to power down appropriatley after initialization @@ -4292,12 +4293,16 @@ static void hda_power_work(struct work_struct *work) container_of(work, struct hda_codec, power_work.work); struct hda_bus *bus = codec->bus; + spin_lock(&codec->power_lock); if (!codec->power_on || codec->power_count) { codec->power_transition = 0; + spin_unlock(&codec->power_lock); return; } trace_hda_power_down(codec); + spin_unlock(&codec->power_lock); + hda_call_codec_suspend(codec); if (bus->ops.pm_notify) bus->ops.pm_notify(bus); @@ -4305,9 +4310,11 @@ static void hda_power_work(struct work_struct *work) static void hda_keep_power_on(struct hda_codec *codec) { + spin_lock(&codec->power_lock); codec->power_count++; codec->power_on = 1; codec->power_jiffies = jiffies; + spin_unlock(&codec->power_lock); } /* update the power on/off account with the current jiffies */ @@ -4332,20 +4339,28 @@ void snd_hda_power_up(struct hda_codec *codec) { struct hda_bus *bus = codec->bus; + spin_lock(&codec->power_lock); codec->power_count++; - if (codec->power_on || codec->power_transition) + if (codec->power_on || codec->power_transition) { + spin_unlock(&codec->power_lock); return; + } trace_hda_power_up(codec); snd_hda_update_power_acct(codec); codec->power_on = 1; codec->power_jiffies = jiffies; codec->power_transition = 1; /* avoid reentrance */ + spin_unlock(&codec->power_lock); + if (bus->ops.pm_notify) bus->ops.pm_notify(bus); hda_call_codec_resume(codec); + + spin_lock(&codec->power_lock); cancel_delayed_work(&codec->power_work); codec->power_transition = 0; + spin_unlock(&codec->power_lock); } EXPORT_SYMBOL_HDA(snd_hda_power_up); @@ -4361,14 +4376,18 @@ EXPORT_SYMBOL_HDA(snd_hda_power_up); */ void snd_hda_power_down(struct hda_codec *codec) { + spin_lock(&codec->power_lock); --codec->power_count; - if (!codec->power_on || codec->power_count || codec->power_transition) + if (!codec->power_on || codec->power_count || codec->power_transition) { + spin_unlock(&codec->power_lock); return; + } if (power_save(codec)) { codec->power_transition = 1; /* avoid reentrance */ queue_delayed_work(codec->bus->workq, &codec->power_work, msecs_to_jiffies(power_save(codec) * 1000)); } + spin_unlock(&codec->power_lock); } EXPORT_SYMBOL_HDA(snd_hda_power_down); -- cgit v1.1 From 128bc4ba8c52194eae5a80594ec9b7f6b35ba88f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 7 May 2012 17:42:31 +0200 Subject: ALSA: hda - Move BIOS pin-parser code to hda_auto_parser.c Just code shuffles. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 596 ---------------------------------------------- 1 file changed, 596 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 30a3d8f..f2bdf38 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4877,602 +4877,6 @@ int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, } EXPORT_SYMBOL_HDA(_snd_hda_set_pin_ctl); -/* - * Helper for automatic pin configuration - */ - -static int is_in_nid_list(hda_nid_t nid, const hda_nid_t *list) -{ - for (; *list; list++) - if (*list == nid) - return 1; - return 0; -} - - -/* - * Sort an associated group of pins according to their sequence numbers. - */ -static void sort_pins_by_sequence(hda_nid_t *pins, short *sequences, - int num_pins) -{ - int i, j; - short seq; - hda_nid_t nid; - - for (i = 0; i < num_pins; i++) { - for (j = i + 1; j < num_pins; j++) { - if (sequences[i] > sequences[j]) { - seq = sequences[i]; - sequences[i] = sequences[j]; - sequences[j] = seq; - nid = pins[i]; - pins[i] = pins[j]; - pins[j] = nid; - } - } - } -} - - -/* add the found input-pin to the cfg->inputs[] table */ -static void add_auto_cfg_input_pin(struct auto_pin_cfg *cfg, hda_nid_t nid, - int type) -{ - if (cfg->num_inputs < AUTO_CFG_MAX_INS) { - cfg->inputs[cfg->num_inputs].pin = nid; - cfg->inputs[cfg->num_inputs].type = type; - cfg->num_inputs++; - } -} - -/* sort inputs in the order of AUTO_PIN_* type */ -static void sort_autocfg_input_pins(struct auto_pin_cfg *cfg) -{ - int i, j; - - for (i = 0; i < cfg->num_inputs; i++) { - for (j = i + 1; j < cfg->num_inputs; j++) { - if (cfg->inputs[i].type > cfg->inputs[j].type) { - struct auto_pin_cfg_item tmp; - tmp = cfg->inputs[i]; - cfg->inputs[i] = cfg->inputs[j]; - cfg->inputs[j] = tmp; - } - } - } -} - -/* Reorder the surround channels - * ALSA sequence is front/surr/clfe/side - * HDA sequence is: - * 4-ch: front/surr => OK as it is - * 6-ch: front/clfe/surr - * 8-ch: front/clfe/rear/side|fc - */ -static void reorder_outputs(unsigned int nums, hda_nid_t *pins) -{ - hda_nid_t nid; - - switch (nums) { - case 3: - case 4: - nid = pins[1]; - pins[1] = pins[2]; - pins[2] = nid; - break; - } -} - -/* - * Parse all pin widgets and store the useful pin nids to cfg - * - * The number of line-outs or any primary output is stored in line_outs, - * and the corresponding output pins are assigned to line_out_pins[], - * in the order of front, rear, CLFE, side, ... - * - * If more extra outputs (speaker and headphone) are found, the pins are - * assisnged to hp_pins[] and speaker_pins[], respectively. If no line-out jack - * is detected, one of speaker of HP pins is assigned as the primary - * output, i.e. to line_out_pins[0]. So, line_outs is always positive - * if any analog output exists. - * - * The analog input pins are assigned to inputs array. - * The digital input/output pins are assigned to dig_in_pin and dig_out_pin, - * respectively. - */ -int snd_hda_parse_pin_defcfg(struct hda_codec *codec, - struct auto_pin_cfg *cfg, - const hda_nid_t *ignore_nids, - unsigned int cond_flags) -{ - hda_nid_t nid, end_nid; - short seq, assoc_line_out; - short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)]; - short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)]; - short sequences_hp[ARRAY_SIZE(cfg->hp_pins)]; - int i; - - memset(cfg, 0, sizeof(*cfg)); - - memset(sequences_line_out, 0, sizeof(sequences_line_out)); - memset(sequences_speaker, 0, sizeof(sequences_speaker)); - memset(sequences_hp, 0, sizeof(sequences_hp)); - assoc_line_out = 0; - - codec->ignore_misc_bit = true; - end_nid = codec->start_nid + codec->num_nodes; - for (nid = codec->start_nid; nid < end_nid; nid++) { - unsigned int wid_caps = get_wcaps(codec, nid); - unsigned int wid_type = get_wcaps_type(wid_caps); - unsigned int def_conf; - short assoc, loc, conn, dev; - - /* read all default configuration for pin complex */ - if (wid_type != AC_WID_PIN) - continue; - /* ignore the given nids (e.g. pc-beep returns error) */ - if (ignore_nids && is_in_nid_list(nid, ignore_nids)) - continue; - - def_conf = snd_hda_codec_get_pincfg(codec, nid); - if (!(get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) & - AC_DEFCFG_MISC_NO_PRESENCE)) - codec->ignore_misc_bit = false; - conn = get_defcfg_connect(def_conf); - if (conn == AC_JACK_PORT_NONE) - continue; - loc = get_defcfg_location(def_conf); - dev = get_defcfg_device(def_conf); - - /* workaround for buggy BIOS setups */ - if (dev == AC_JACK_LINE_OUT) { - if (conn == AC_JACK_PORT_FIXED) - dev = AC_JACK_SPEAKER; - } - - switch (dev) { - case AC_JACK_LINE_OUT: - seq = get_defcfg_sequence(def_conf); - assoc = get_defcfg_association(def_conf); - - if (!(wid_caps & AC_WCAP_STEREO)) - if (!cfg->mono_out_pin) - cfg->mono_out_pin = nid; - if (!assoc) - continue; - if (!assoc_line_out) - assoc_line_out = assoc; - else if (assoc_line_out != assoc) - continue; - if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins)) - continue; - cfg->line_out_pins[cfg->line_outs] = nid; - sequences_line_out[cfg->line_outs] = seq; - cfg->line_outs++; - break; - case AC_JACK_SPEAKER: - seq = get_defcfg_sequence(def_conf); - assoc = get_defcfg_association(def_conf); - if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins)) - continue; - cfg->speaker_pins[cfg->speaker_outs] = nid; - sequences_speaker[cfg->speaker_outs] = (assoc << 4) | seq; - cfg->speaker_outs++; - break; - case AC_JACK_HP_OUT: - seq = get_defcfg_sequence(def_conf); - assoc = get_defcfg_association(def_conf); - if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins)) - continue; - cfg->hp_pins[cfg->hp_outs] = nid; - sequences_hp[cfg->hp_outs] = (assoc << 4) | seq; - cfg->hp_outs++; - break; - case AC_JACK_MIC_IN: - add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_MIC); - break; - case AC_JACK_LINE_IN: - add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_LINE_IN); - break; - case AC_JACK_CD: - add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_CD); - break; - case AC_JACK_AUX: - add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_AUX); - break; - case AC_JACK_SPDIF_OUT: - case AC_JACK_DIG_OTHER_OUT: - if (cfg->dig_outs >= ARRAY_SIZE(cfg->dig_out_pins)) - continue; - cfg->dig_out_pins[cfg->dig_outs] = nid; - cfg->dig_out_type[cfg->dig_outs] = - (loc == AC_JACK_LOC_HDMI) ? - HDA_PCM_TYPE_HDMI : HDA_PCM_TYPE_SPDIF; - cfg->dig_outs++; - break; - case AC_JACK_SPDIF_IN: - case AC_JACK_DIG_OTHER_IN: - cfg->dig_in_pin = nid; - if (loc == AC_JACK_LOC_HDMI) - cfg->dig_in_type = HDA_PCM_TYPE_HDMI; - else - cfg->dig_in_type = HDA_PCM_TYPE_SPDIF; - break; - } - } - - /* FIX-UP: - * If no line-out is defined but multiple HPs are found, - * some of them might be the real line-outs. - */ - if (!cfg->line_outs && cfg->hp_outs > 1 && - !(cond_flags & HDA_PINCFG_NO_HP_FIXUP)) { - int i = 0; - while (i < cfg->hp_outs) { - /* The real HPs should have the sequence 0x0f */ - if ((sequences_hp[i] & 0x0f) == 0x0f) { - i++; - continue; - } - /* Move it to the line-out table */ - cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i]; - sequences_line_out[cfg->line_outs] = sequences_hp[i]; - cfg->line_outs++; - cfg->hp_outs--; - memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1, - sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i)); - memmove(sequences_hp + i, sequences_hp + i + 1, - sizeof(sequences_hp[0]) * (cfg->hp_outs - i)); - } - memset(cfg->hp_pins + cfg->hp_outs, 0, - sizeof(hda_nid_t) * (AUTO_CFG_MAX_OUTS - cfg->hp_outs)); - if (!cfg->hp_outs) - cfg->line_out_type = AUTO_PIN_HP_OUT; - - } - - /* sort by sequence */ - sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out, - cfg->line_outs); - sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker, - cfg->speaker_outs); - sort_pins_by_sequence(cfg->hp_pins, sequences_hp, - cfg->hp_outs); - - /* - * FIX-UP: if no line-outs are detected, try to use speaker or HP pin - * as a primary output - */ - if (!cfg->line_outs && - !(cond_flags & HDA_PINCFG_NO_LO_FIXUP)) { - if (cfg->speaker_outs) { - cfg->line_outs = cfg->speaker_outs; - memcpy(cfg->line_out_pins, cfg->speaker_pins, - sizeof(cfg->speaker_pins)); - cfg->speaker_outs = 0; - memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins)); - cfg->line_out_type = AUTO_PIN_SPEAKER_OUT; - } else if (cfg->hp_outs) { - cfg->line_outs = cfg->hp_outs; - memcpy(cfg->line_out_pins, cfg->hp_pins, - sizeof(cfg->hp_pins)); - cfg->hp_outs = 0; - memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins)); - cfg->line_out_type = AUTO_PIN_HP_OUT; - } - } - - reorder_outputs(cfg->line_outs, cfg->line_out_pins); - reorder_outputs(cfg->hp_outs, cfg->hp_pins); - reorder_outputs(cfg->speaker_outs, cfg->speaker_pins); - - sort_autocfg_input_pins(cfg); - - /* - * debug prints of the parsed results - */ - snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x) type:%s\n", - cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1], - cfg->line_out_pins[2], cfg->line_out_pins[3], - cfg->line_out_pins[4], - cfg->line_out_type == AUTO_PIN_HP_OUT ? "hp" : - (cfg->line_out_type == AUTO_PIN_SPEAKER_OUT ? - "speaker" : "line")); - snd_printd(" speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n", - cfg->speaker_outs, cfg->speaker_pins[0], - cfg->speaker_pins[1], cfg->speaker_pins[2], - cfg->speaker_pins[3], cfg->speaker_pins[4]); - snd_printd(" hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n", - cfg->hp_outs, cfg->hp_pins[0], - cfg->hp_pins[1], cfg->hp_pins[2], - cfg->hp_pins[3], cfg->hp_pins[4]); - snd_printd(" mono: mono_out=0x%x\n", cfg->mono_out_pin); - if (cfg->dig_outs) - snd_printd(" dig-out=0x%x/0x%x\n", - cfg->dig_out_pins[0], cfg->dig_out_pins[1]); - snd_printd(" inputs:"); - for (i = 0; i < cfg->num_inputs; i++) { - snd_printd(" %s=0x%x", - hda_get_autocfg_input_label(codec, cfg, i), - cfg->inputs[i].pin); - } - snd_printd("\n"); - if (cfg->dig_in_pin) - snd_printd(" dig-in=0x%x\n", cfg->dig_in_pin); - - return 0; -} -EXPORT_SYMBOL_HDA(snd_hda_parse_pin_defcfg); - -int snd_hda_get_input_pin_attr(unsigned int def_conf) -{ - unsigned int loc = get_defcfg_location(def_conf); - unsigned int conn = get_defcfg_connect(def_conf); - if (conn == AC_JACK_PORT_NONE) - return INPUT_PIN_ATTR_UNUSED; - /* Windows may claim the internal mic to be BOTH, too */ - if (conn == AC_JACK_PORT_FIXED || conn == AC_JACK_PORT_BOTH) - return INPUT_PIN_ATTR_INT; - if ((loc & 0x30) == AC_JACK_LOC_INTERNAL) - return INPUT_PIN_ATTR_INT; - if ((loc & 0x30) == AC_JACK_LOC_SEPARATE) - return INPUT_PIN_ATTR_DOCK; - if (loc == AC_JACK_LOC_REAR) - return INPUT_PIN_ATTR_REAR; - if (loc == AC_JACK_LOC_FRONT) - return INPUT_PIN_ATTR_FRONT; - return INPUT_PIN_ATTR_NORMAL; -} -EXPORT_SYMBOL_HDA(snd_hda_get_input_pin_attr); - -/** - * hda_get_input_pin_label - Give a label for the given input pin - * - * When check_location is true, the function checks the pin location - * for mic and line-in pins, and set an appropriate prefix like "Front", - * "Rear", "Internal". - */ - -static const char *hda_get_input_pin_label(struct hda_codec *codec, - hda_nid_t pin, bool check_location) -{ - unsigned int def_conf; - static const char * const mic_names[] = { - "Internal Mic", "Dock Mic", "Mic", "Front Mic", "Rear Mic", - }; - int attr; - - def_conf = snd_hda_codec_get_pincfg(codec, pin); - - switch (get_defcfg_device(def_conf)) { - case AC_JACK_MIC_IN: - if (!check_location) - return "Mic"; - attr = snd_hda_get_input_pin_attr(def_conf); - if (!attr) - return "None"; - return mic_names[attr - 1]; - case AC_JACK_LINE_IN: - if (!check_location) - return "Line"; - attr = snd_hda_get_input_pin_attr(def_conf); - if (!attr) - return "None"; - if (attr == INPUT_PIN_ATTR_DOCK) - return "Dock Line"; - return "Line"; - case AC_JACK_AUX: - return "Aux"; - case AC_JACK_CD: - return "CD"; - case AC_JACK_SPDIF_IN: - return "SPDIF In"; - case AC_JACK_DIG_OTHER_IN: - return "Digital In"; - default: - return "Misc"; - } -} - -/* Check whether the location prefix needs to be added to the label. - * If all mic-jacks are in the same location (e.g. rear panel), we don't - * have to put "Front" prefix to each label. In such a case, returns false. - */ -static int check_mic_location_need(struct hda_codec *codec, - const struct auto_pin_cfg *cfg, - int input) -{ - unsigned int defc; - int i, attr, attr2; - - defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[input].pin); - attr = snd_hda_get_input_pin_attr(defc); - /* for internal or docking mics, we need locations */ - if (attr <= INPUT_PIN_ATTR_NORMAL) - return 1; - - attr = 0; - for (i = 0; i < cfg->num_inputs; i++) { - defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[i].pin); - attr2 = snd_hda_get_input_pin_attr(defc); - if (attr2 >= INPUT_PIN_ATTR_NORMAL) { - if (attr && attr != attr2) - return 1; /* different locations found */ - attr = attr2; - } - } - return 0; -} - -/** - * hda_get_autocfg_input_label - Get a label for the given input - * - * Get a label for the given input pin defined by the autocfg item. - * Unlike hda_get_input_pin_label(), this function checks all inputs - * defined in autocfg and avoids the redundant mic/line prefix as much as - * possible. - */ -const char *hda_get_autocfg_input_label(struct hda_codec *codec, - const struct auto_pin_cfg *cfg, - int input) -{ - int type = cfg->inputs[input].type; - int has_multiple_pins = 0; - - if ((input > 0 && cfg->inputs[input - 1].type == type) || - (input < cfg->num_inputs - 1 && cfg->inputs[input + 1].type == type)) - has_multiple_pins = 1; - if (has_multiple_pins && type == AUTO_PIN_MIC) - has_multiple_pins &= check_mic_location_need(codec, cfg, input); - return hda_get_input_pin_label(codec, cfg->inputs[input].pin, - has_multiple_pins); -} -EXPORT_SYMBOL_HDA(hda_get_autocfg_input_label); - -/* return the position of NID in the list, or -1 if not found */ -static int find_idx_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums) -{ - int i; - for (i = 0; i < nums; i++) - if (list[i] == nid) - return i; - return -1; -} - -/* get a unique suffix or an index number */ -static const char *check_output_sfx(hda_nid_t nid, const hda_nid_t *pins, - int num_pins, int *indexp) -{ - static const char * const channel_sfx[] = { - " Front", " Surround", " CLFE", " Side" - }; - int i; - - i = find_idx_in_nid_list(nid, pins, num_pins); - if (i < 0) - return NULL; - if (num_pins == 1) - return ""; - if (num_pins > ARRAY_SIZE(channel_sfx)) { - if (indexp) - *indexp = i; - return ""; - } - return channel_sfx[i]; -} - -static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid, - const struct auto_pin_cfg *cfg, - const char *name, char *label, int maxlen, - int *indexp) -{ - unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid); - int attr = snd_hda_get_input_pin_attr(def_conf); - const char *pfx = "", *sfx = ""; - - /* handle as a speaker if it's a fixed line-out */ - if (!strcmp(name, "Line Out") && attr == INPUT_PIN_ATTR_INT) - name = "Speaker"; - /* check the location */ - switch (attr) { - case INPUT_PIN_ATTR_DOCK: - pfx = "Dock "; - break; - case INPUT_PIN_ATTR_FRONT: - pfx = "Front "; - break; - } - if (cfg) { - /* try to give a unique suffix if needed */ - sfx = check_output_sfx(nid, cfg->line_out_pins, cfg->line_outs, - indexp); - if (!sfx) - sfx = check_output_sfx(nid, cfg->speaker_pins, cfg->speaker_outs, - indexp); - if (!sfx) { - /* don't add channel suffix for Headphone controls */ - int idx = find_idx_in_nid_list(nid, cfg->hp_pins, - cfg->hp_outs); - if (idx >= 0) - *indexp = idx; - sfx = ""; - } - } - snprintf(label, maxlen, "%s%s%s", pfx, name, sfx); - return 1; -} - -/** - * snd_hda_get_pin_label - Get a label for the given I/O pin - * - * Get a label for the given pin. This function works for both input and - * output pins. When @cfg is given as non-NULL, the function tries to get - * an optimized label using hda_get_autocfg_input_label(). - * - * This function tries to give a unique label string for the pin as much as - * possible. For example, when the multiple line-outs are present, it adds - * the channel suffix like "Front", "Surround", etc (only when @cfg is given). - * If no unique name with a suffix is available and @indexp is non-NULL, the - * index number is stored in the pointer. - */ -int snd_hda_get_pin_label(struct hda_codec *codec, hda_nid_t nid, - const struct auto_pin_cfg *cfg, - char *label, int maxlen, int *indexp) -{ - unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid); - const char *name = NULL; - int i; - - if (indexp) - *indexp = 0; - if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE) - return 0; - - switch (get_defcfg_device(def_conf)) { - case AC_JACK_LINE_OUT: - return fill_audio_out_name(codec, nid, cfg, "Line Out", - label, maxlen, indexp); - case AC_JACK_SPEAKER: - return fill_audio_out_name(codec, nid, cfg, "Speaker", - label, maxlen, indexp); - case AC_JACK_HP_OUT: - return fill_audio_out_name(codec, nid, cfg, "Headphone", - label, maxlen, indexp); - case AC_JACK_SPDIF_OUT: - case AC_JACK_DIG_OTHER_OUT: - if (get_defcfg_location(def_conf) == AC_JACK_LOC_HDMI) - name = "HDMI"; - else - name = "SPDIF"; - if (cfg && indexp) { - i = find_idx_in_nid_list(nid, cfg->dig_out_pins, - cfg->dig_outs); - if (i >= 0) - *indexp = i; - } - break; - default: - if (cfg) { - for (i = 0; i < cfg->num_inputs; i++) { - if (cfg->inputs[i].pin != nid) - continue; - name = hda_get_autocfg_input_label(codec, cfg, i); - if (name) - break; - } - } - if (!name) - name = hda_get_input_pin_label(codec, nid, true); - break; - } - if (!name) - return 0; - strlcpy(label, name, maxlen); - return 1; -} -EXPORT_SYMBOL_HDA(snd_hda_get_pin_label); - /** * snd_hda_add_imux_item - Add an item to input_mux * -- cgit v1.1 From 607d4f7f0551eb591fbaca4bf44a8d6251e82f00 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 9 May 2012 10:31:08 +0200 Subject: ALSA: hda - Remove pre_resume and post_suspend ops Since the recent commit, the resume procedure is always performed at the resume time. This makes the pre_resume hack for VREF mute LED on some HP laptops superfluous. As this is the only user of pre_resume (and there is no user of post_suspend) ops, let's kill them again. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index f2bdf38..e0f8667 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4930,8 +4930,6 @@ int snd_hda_suspend(struct hda_bus *bus) list_for_each_entry(codec, &bus->codec_list, list) { if (hda_codec_is_power_on(codec)) hda_call_codec_suspend(codec); - if (codec->patch_ops.post_suspend) - codec->patch_ops.post_suspend(codec); } return 0; } @@ -4951,8 +4949,6 @@ int snd_hda_resume(struct hda_bus *bus) struct hda_codec *codec; list_for_each_entry(codec, &bus->codec_list, list) { - if (codec->patch_ops.pre_resume) - codec->patch_ops.pre_resume(codec); hda_call_codec_resume(codec); } return 0; -- cgit v1.1 From a2d96e778d1b15d2213f3b7737aa86fd8eda44cb Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 9 May 2012 12:36:22 +0200 Subject: ALSA: hda - More robustify the power-up/down sequence Check the power_transition up/down state instead of boolean bit, so that the power-up sequence can cancel the pending power-down work properly. Also, by moving cancel_delayed_work_sync() before the actual power-up sequence, make sure that the delayed power-down is completed. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index e0f8667..731f850 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2265,7 +2265,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) /* OK, let it free */ #ifdef CONFIG_SND_HDA_POWER_SAVE - cancel_delayed_work(&codec->power_work); + cancel_delayed_work_sync(&codec->power_work); codec->power_on = 0; codec->power_transition = 0; codec->power_jiffies = jiffies; @@ -3491,11 +3491,14 @@ static void hda_call_codec_suspend(struct hda_codec *codec) codec->afg ? codec->afg : codec->mfg, AC_PWRST_D3); #ifdef CONFIG_SND_HDA_POWER_SAVE - snd_hda_update_power_acct(codec); cancel_delayed_work(&codec->power_work); + spin_lock(&codec->power_lock); + snd_hda_update_power_acct(codec); + trace_hda_power_down(codec); codec->power_on = 0; codec->power_transition = 0; codec->power_jiffies = jiffies; + spin_unlock(&codec->power_lock); #endif } @@ -4294,13 +4297,15 @@ static void hda_power_work(struct work_struct *work) struct hda_bus *bus = codec->bus; spin_lock(&codec->power_lock); + if (codec->power_transition > 0) { /* during power-up sequence? */ + spin_unlock(&codec->power_lock); + return; + } if (!codec->power_on || codec->power_count) { codec->power_transition = 0; spin_unlock(&codec->power_lock); return; } - - trace_hda_power_down(codec); spin_unlock(&codec->power_lock); hda_call_codec_suspend(codec); @@ -4341,11 +4346,15 @@ void snd_hda_power_up(struct hda_codec *codec) spin_lock(&codec->power_lock); codec->power_count++; - if (codec->power_on || codec->power_transition) { + if (codec->power_on || codec->power_transition > 0) { spin_unlock(&codec->power_lock); return; } + spin_unlock(&codec->power_lock); + cancel_delayed_work_sync(&codec->power_work); + + spin_lock(&codec->power_lock); trace_hda_power_up(codec); snd_hda_update_power_acct(codec); codec->power_on = 1; @@ -4358,7 +4367,6 @@ void snd_hda_power_up(struct hda_codec *codec) hda_call_codec_resume(codec); spin_lock(&codec->power_lock); - cancel_delayed_work(&codec->power_work); codec->power_transition = 0; spin_unlock(&codec->power_lock); } @@ -4383,7 +4391,7 @@ void snd_hda_power_down(struct hda_codec *codec) return; } if (power_save(codec)) { - codec->power_transition = 1; /* avoid reentrance */ + codec->power_transition = -1; /* avoid reentrance */ queue_delayed_work(codec->bus->workq, &codec->power_work, msecs_to_jiffies(power_save(codec) * 1000)); } -- cgit v1.1 From e3245cddcf56ccd810b73d0a2918e02560da93ab Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 10 May 2012 10:21:29 +0200 Subject: ALSA: hda - Protect SPDIF-related stuff via spdif_mutex Add the missing mutex protection or move into the protected part for SPDIF access codes for codecs. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 731f850..5e7c4bf 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2864,12 +2864,15 @@ static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); int idx = kcontrol->private_value; - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); + struct hda_spdif_out *spdif; + mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); ucontrol->value.iec958.status[0] = spdif->status & 0xff; ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff; ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff; ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff; + mutex_unlock(&codec->spdif_mutex); return 0; } @@ -2955,12 +2958,14 @@ static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); int idx = kcontrol->private_value; - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); - hda_nid_t nid = spdif->nid; + struct hda_spdif_out *spdif; + hda_nid_t nid; unsigned short val; int change; mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); + nid = spdif->nid; spdif->status = ucontrol->value.iec958.status[0] | ((unsigned int)ucontrol->value.iec958.status[1] << 8) | ((unsigned int)ucontrol->value.iec958.status[2] << 16) | @@ -2982,9 +2987,12 @@ static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); int idx = kcontrol->private_value; - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); + struct hda_spdif_out *spdif; + mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE; + mutex_unlock(&codec->spdif_mutex); return 0; } @@ -3004,12 +3012,14 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); int idx = kcontrol->private_value; - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); - hda_nid_t nid = spdif->nid; + struct hda_spdif_out *spdif; + hda_nid_t nid; unsigned short val; int change; mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); + nid = spdif->nid; val = spdif->ctls & ~AC_DIG1_ENABLE; if (ucontrol->value.integer.value[0]) val |= AC_DIG1_ENABLE; @@ -3097,6 +3107,9 @@ int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, } EXPORT_SYMBOL_HDA(snd_hda_create_spdif_out_ctls); +/* get the hda_spdif_out entry from the given NID + * call within spdif_mutex lock + */ struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, hda_nid_t nid) { @@ -3113,9 +3126,10 @@ EXPORT_SYMBOL_HDA(snd_hda_spdif_out_of_nid); void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx) { - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); + struct hda_spdif_out *spdif; mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); spdif->nid = (u16)-1; mutex_unlock(&codec->spdif_mutex); } @@ -3123,10 +3137,11 @@ EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_unassign); void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid) { - struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx); + struct hda_spdif_out *spdif; unsigned short val; mutex_lock(&codec->spdif_mutex); + spdif = snd_array_elem(&codec->spdif_out, idx); if (spdif->nid != nid) { spdif->nid = nid; val = spdif->ctls; @@ -4747,11 +4762,11 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, { const hda_nid_t *nids = mout->dac_nids; int chs = substream->runtime->channels; - struct hda_spdif_out *spdif = - snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); + struct hda_spdif_out *spdif; int i; mutex_lock(&codec->spdif_mutex); + spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid); if (mout->dig_out_nid && mout->share_spdif && mout->dig_out_used != HDA_DIG_EXCLUSIVE) { if (chs == 2 && -- cgit v1.1 From c3b6bcc292da80ea08a979af177538ffdbbae36b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 10 May 2012 16:11:15 +0200 Subject: ALSA: hda - Fix concurrent hash accesses The amp and caps hashes aren't protected properly for concurrent accesses. Protect them via a new mutex now. But it can't be so simple as originally thought: since the update of a hash table entry itself might trigger the power-up sequence which again accesses the hash table, we can't cover the whole function simply via mutex. Thus the update part has to be split from the mutex and revalidated. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 201 +++++++++++++++++++++++++++------------------- 1 file changed, 120 insertions(+), 81 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 5e7c4bf..7a621f5 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1255,6 +1255,7 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, codec->addr = codec_addr; mutex_init(&codec->spdif_mutex); mutex_init(&codec->control_mutex); + mutex_init(&codec->hash_mutex); init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info)); init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head)); snd_array_init(&codec->mixers, sizeof(struct hda_nid_item), 32); @@ -1605,6 +1606,60 @@ get_alloc_amp_hash(struct hda_codec *codec, u32 key) return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key); } +/* overwrite the value with the key in the caps hash */ +static int write_caps_hash(struct hda_codec *codec, u32 key, unsigned int val) +{ + struct hda_amp_info *info; + + mutex_lock(&codec->hash_mutex); + info = get_alloc_amp_hash(codec, key); + if (!info) { + mutex_unlock(&codec->hash_mutex); + return -EINVAL; + } + info->amp_caps = val; + info->head.val |= INFO_AMP_CAPS; + mutex_unlock(&codec->hash_mutex); + return 0; +} + +/* query the value from the caps hash; if not found, fetch the current + * value from the given function and store in the hash + */ +static unsigned int +query_caps_hash(struct hda_codec *codec, hda_nid_t nid, int dir, u32 key, + unsigned int (*func)(struct hda_codec *, hda_nid_t, int)) +{ + struct hda_amp_info *info; + unsigned int val; + + mutex_lock(&codec->hash_mutex); + info = get_alloc_amp_hash(codec, key); + if (!info) { + mutex_unlock(&codec->hash_mutex); + return 0; + } + if (!(info->head.val & INFO_AMP_CAPS)) { + mutex_unlock(&codec->hash_mutex); /* for reentrance */ + val = func(codec, nid, dir); + write_caps_hash(codec, key, val); + } else { + val = info->amp_caps; + mutex_unlock(&codec->hash_mutex); + } + return val; +} + +static unsigned int read_amp_cap(struct hda_codec *codec, hda_nid_t nid, + int direction) +{ + if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) + nid = codec->afg; + return snd_hda_param_read(codec, nid, + direction == HDA_OUTPUT ? + AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP); +} + /** * query_amp_caps - query AMP capabilities * @codec: the HD-auio codec @@ -1619,22 +1674,9 @@ get_alloc_amp_hash(struct hda_codec *codec, u32 key) */ u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction) { - struct hda_amp_info *info; - - info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0)); - if (!info) - return 0; - if (!(info->head.val & INFO_AMP_CAPS)) { - if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD)) - nid = codec->afg; - info->amp_caps = snd_hda_param_read(codec, nid, - direction == HDA_OUTPUT ? - AC_PAR_AMP_OUT_CAP : - AC_PAR_AMP_IN_CAP); - if (info->amp_caps) - info->head.val |= INFO_AMP_CAPS; - } - return info->amp_caps; + return query_caps_hash(codec, nid, direction, + HDA_HASH_KEY(nid, direction, 0), + read_amp_cap); } EXPORT_SYMBOL_HDA(query_amp_caps); @@ -1654,34 +1696,12 @@ EXPORT_SYMBOL_HDA(query_amp_caps); int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int caps) { - struct hda_amp_info *info; - - info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0)); - if (!info) - return -EINVAL; - info->amp_caps = caps; - info->head.val |= INFO_AMP_CAPS; - return 0; + return write_caps_hash(codec, HDA_HASH_KEY(nid, dir, 0), caps); } EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps); -static unsigned int -query_caps_hash(struct hda_codec *codec, hda_nid_t nid, u32 key, - unsigned int (*func)(struct hda_codec *, hda_nid_t)) -{ - struct hda_amp_info *info; - - info = get_alloc_amp_hash(codec, key); - if (!info) - return 0; - if (!info->head.val) { - info->head.val |= INFO_AMP_CAPS; - info->amp_caps = func(codec, nid); - } - return info->amp_caps; -} - -static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid) +static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid, + int dir) { return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP); } @@ -1699,7 +1719,7 @@ static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid) */ u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid) { - return query_caps_hash(codec, nid, HDA_HASH_PINCAP_KEY(nid), + return query_caps_hash(codec, nid, 0, HDA_HASH_PINCAP_KEY(nid), read_pin_cap); } EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps); @@ -1717,41 +1737,47 @@ EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps); int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid, unsigned int caps) { - struct hda_amp_info *info; - info = get_alloc_amp_hash(codec, HDA_HASH_PINCAP_KEY(nid)); - if (!info) - return -ENOMEM; - info->amp_caps = caps; - info->head.val |= INFO_AMP_CAPS; - return 0; + return write_caps_hash(codec, HDA_HASH_PINCAP_KEY(nid), caps); } EXPORT_SYMBOL_HDA(snd_hda_override_pin_caps); -/* - * read the current volume to info - * if the cache exists, read the cache value. +/* read or sync the hash value with the current value; + * call within hash_mutex */ -static unsigned int get_vol_mute(struct hda_codec *codec, - struct hda_amp_info *info, hda_nid_t nid, - int ch, int direction, int index) +static struct hda_amp_info * +update_amp_hash(struct hda_codec *codec, hda_nid_t nid, int ch, + int direction, int index) { - u32 val, parm; - - if (info->head.val & INFO_AMP_VOL(ch)) - return info->vol[ch]; + struct hda_amp_info *info; + unsigned int parm, val = 0; + bool val_read = false; - parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT; - parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT; - parm |= index; - val = snd_hda_codec_read(codec, nid, 0, + retry: + info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index)); + if (!info) + return NULL; + if (!(info->head.val & INFO_AMP_VOL(ch))) { + if (!val_read) { + mutex_unlock(&codec->hash_mutex); + parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT; + parm |= direction == HDA_OUTPUT ? + AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT; + parm |= index; + val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm); - info->vol[ch] = val & 0xff; - info->head.val |= INFO_AMP_VOL(ch); - return info->vol[ch]; + val &= 0xff; + val_read = true; + mutex_lock(&codec->hash_mutex); + goto retry; + } + info->vol[ch] = val; + info->head.val |= INFO_AMP_VOL(ch); + } + return info; } /* - * write the current volume in info to the h/w and update the cache + * write the current volume in info to the h/w */ static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info, hda_nid_t nid, int ch, int direction, int index, @@ -1768,7 +1794,6 @@ static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info, else parm |= val; snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm); - info->vol[ch] = val; } /** @@ -1785,10 +1810,14 @@ int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int index) { struct hda_amp_info *info; - info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index)); - if (!info) - return 0; - return get_vol_mute(codec, info, nid, ch, direction, index); + unsigned int val = 0; + + mutex_lock(&codec->hash_mutex); + info = update_amp_hash(codec, nid, ch, direction, index); + if (info) + val = info->vol[ch]; + mutex_unlock(&codec->hash_mutex); + return val; } EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read); @@ -1810,15 +1839,23 @@ int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch, { struct hda_amp_info *info; - info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx)); - if (!info) - return 0; if (snd_BUG_ON(mask & ~0xff)) mask &= 0xff; val &= mask; - val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask; - if (info->vol[ch] == val) + + mutex_lock(&codec->hash_mutex); + info = update_amp_hash(codec, nid, ch, direction, idx); + if (!info) { + mutex_unlock(&codec->hash_mutex); + return 0; + } + val |= info->vol[ch] & ~mask; + if (info->vol[ch] == val) { + mutex_unlock(&codec->hash_mutex); return 0; + } + info->vol[ch] = val; + mutex_unlock(&codec->hash_mutex); put_vol_mute(codec, info, nid, ch, direction, idx, val); return 1; } @@ -3693,7 +3730,8 @@ unsigned int snd_hda_calc_stream_format(unsigned int rate, } EXPORT_SYMBOL_HDA(snd_hda_calc_stream_format); -static unsigned int get_pcm_param(struct hda_codec *codec, hda_nid_t nid) +static unsigned int get_pcm_param(struct hda_codec *codec, hda_nid_t nid, + int dir) { unsigned int val = 0; if (nid != codec->afg && @@ -3708,11 +3746,12 @@ static unsigned int get_pcm_param(struct hda_codec *codec, hda_nid_t nid) static unsigned int query_pcm_param(struct hda_codec *codec, hda_nid_t nid) { - return query_caps_hash(codec, nid, HDA_HASH_PARPCM_KEY(nid), + return query_caps_hash(codec, nid, 0, HDA_HASH_PARPCM_KEY(nid), get_pcm_param); } -static unsigned int get_stream_param(struct hda_codec *codec, hda_nid_t nid) +static unsigned int get_stream_param(struct hda_codec *codec, hda_nid_t nid, + int dir) { unsigned int streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM); if (!streams || streams == -1) @@ -3724,7 +3763,7 @@ static unsigned int get_stream_param(struct hda_codec *codec, hda_nid_t nid) static unsigned int query_stream_param(struct hda_codec *codec, hda_nid_t nid) { - return query_caps_hash(codec, nid, HDA_HASH_PARSTR_KEY(nid), + return query_caps_hash(codec, nid, 0, HDA_HASH_PARSTR_KEY(nid), get_stream_param); } -- cgit v1.1 From 8c7dd8907637d863bdd175f24e895cbcfe03e1e5 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 12 May 2012 09:38:05 +0200 Subject: ALSA: hda - Disable FLOAT format support It turned out that the FLOAT format on CS4206 results in simple noises, which implies that this is no right format as is. Since CS4206 is the only codec supporting the float, let's disable it until we find the correct format. Reported-and-tested-by: Adrian Knoth Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 7a621f5..c556fe1 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -3842,11 +3842,13 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid, bps = 20; } } +#if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */ if (streams & AC_SUPFMT_FLOAT32) { formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; if (!bps) bps = 32; } +#endif if (streams == AC_SUPFMT_AC3) { /* should be exclusive */ /* temporary hack: we have still no proper support -- cgit v1.1 From 09cf03b80c593b08e8b630a145e14f485200b5af Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 19 May 2012 17:21:25 +0200 Subject: ALSA: hda - Fix possible races of accesses to connection list array Like the previous fixes for cache hash accesses, a protection over accesses to the widget connection list array must be provided. Together with this action, remove snd_hda_get_conn_list() which can be always race, and replace it with either snd_hda_get_num_conns() or snd_hda_get_connections() calls. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 82 +++++++++++++++++++++-------------------------- 1 file changed, 37 insertions(+), 45 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index c556fe1..eb09a33 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -334,78 +334,67 @@ static hda_nid_t *lookup_conn_list(struct snd_array *array, hda_nid_t nid) return NULL; } +/* read the connection and add to the cache */ +static int read_and_add_raw_conns(struct hda_codec *codec, hda_nid_t nid) +{ + hda_nid_t list[HDA_MAX_CONNECTIONS]; + int len; + + len = snd_hda_get_raw_connections(codec, nid, list, ARRAY_SIZE(list)); + if (len < 0) + return len; + return snd_hda_override_conn_list(codec, nid, len, list); +} + /** - * snd_hda_get_conn_list - get connection list + * snd_hda_get_connections - copy connection list * @codec: the HDA codec * @nid: NID to parse - * @listp: the pointer to store NID list + * @conn_list: connection list array; when NULL, checks only the size + * @max_conns: max. number of connections to store * * Parses the connection list of the given widget and stores the list * of NIDs. * * Returns the number of connections, or a negative error code. */ -int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, - const hda_nid_t **listp) +int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, + hda_nid_t *conn_list, int max_conns) { struct snd_array *array = &codec->conn_lists; - int len, err; - hda_nid_t list[HDA_MAX_CONNECTIONS]; + int len; hda_nid_t *p; bool added = false; again: + mutex_lock(&codec->hash_mutex); + len = -1; /* if the connection-list is already cached, read it */ p = lookup_conn_list(array, nid); if (p) { - if (listp) - *listp = p + 2; - return p[1]; + len = p[1]; + if (conn_list && len > max_conns) { + snd_printk(KERN_ERR "hda_codec: " + "Too many connections %d for NID 0x%x\n", + len, nid); + mutex_unlock(&codec->hash_mutex); + return -EINVAL; + } + if (conn_list && len) + memcpy(conn_list, p + 2, len * sizeof(hda_nid_t)); } + mutex_unlock(&codec->hash_mutex); + if (len >= 0) + return len; if (snd_BUG_ON(added)) return -EINVAL; - /* read the connection and add to the cache */ - len = snd_hda_get_raw_connections(codec, nid, list, HDA_MAX_CONNECTIONS); + len = read_and_add_raw_conns(codec, nid); if (len < 0) return len; - err = snd_hda_override_conn_list(codec, nid, len, list); - if (err < 0) - return err; added = true; goto again; } -EXPORT_SYMBOL_HDA(snd_hda_get_conn_list); - -/** - * snd_hda_get_connections - copy connection list - * @codec: the HDA codec - * @nid: NID to parse - * @conn_list: connection list array - * @max_conns: max. number of connections to store - * - * Parses the connection list of the given widget and stores the list - * of NIDs. - * - * Returns the number of connections, or a negative error code. - */ -int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, - hda_nid_t *conn_list, int max_conns) -{ - const hda_nid_t *list; - int len = snd_hda_get_conn_list(codec, nid, &list); - - if (len <= 0) - return len; - if (len > max_conns) { - snd_printk(KERN_ERR "hda_codec: " - "Too many connections %d for NID 0x%x\n", - len, nid); - return -EINVAL; - } - memcpy(conn_list, list, len * sizeof(hda_nid_t)); - return len; -} EXPORT_SYMBOL_HDA(snd_hda_get_connections); /** @@ -543,6 +532,7 @@ int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, hda_nid_t *p; int i, old_used; + mutex_lock(&codec->hash_mutex); p = lookup_conn_list(array, nid); if (p) *p = -1; /* invalidate the old entry */ @@ -553,10 +543,12 @@ int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int len, for (i = 0; i < len; i++) if (!add_conn_list(array, list[i])) goto error_add; + mutex_unlock(&codec->hash_mutex); return 0; error_add: array->used = old_used; + mutex_unlock(&codec->hash_mutex); return -ENOMEM; } EXPORT_SYMBOL_HDA(snd_hda_override_conn_list); -- cgit v1.1