[alsa-devel] [PATCH 02/21] ASoC: soc-core: add for_each_rtd_components() and replace

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

ALSA SoC has for_each_rtdcom() which is link list for rtd-component which is called as rtdcom. The relationship image is like below

rtdcom rtdcom rtdcom component component component rtd->component_list -> list -> list -> list ...

Here, the pointer get via normal link list is rtdcom, Thus, current for_each loop is like below, and need to get component via rtdcom->component

for_each_rtdcom(rtd, rtdcom) { component = rtdcom->component; ... }

but usually, user want to get pointer from for_each_xxx is component directly, like below.

for_each_rtd_component(rtd, rtdcom, component) { ... }

This patch expands list_for_each_entry manually, and enable to get component directly from for_each macro. Because of it, the macro becoming difficult to read, but macro itself becoming useful.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc.h | 8 ++++++-- sound/soc/soc-component.c | 43 +++++++++++---------------------------- sound/soc/soc-compress.c | 52 ++++++++++++----------------------------------- sound/soc/soc-core.c | 22 ++++++++------------ sound/soc/soc-pcm.c | 49 +++++++++++++------------------------------- 5 files changed, 54 insertions(+), 120 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h index d730883..320dcd4 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -739,8 +739,12 @@ struct snd_soc_rtdcom_list { struct snd_soc_component* snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, const char *driver_name); -#define for_each_rtdcom(rtd, rtdcom) \ - list_for_each_entry(rtdcom, &(rtd)->component_list, list) +#define for_each_rtd_components(rtd, rtdcom, _component) \ + for (rtdcom = list_first_entry(&(rtd)->component_list, \ + typeof(*rtdcom), list); \ + (&rtdcom->list != &(rtd)->component_list) && \ + (_component = rtdcom->component); \ + rtdcom = list_next_entry(rtdcom, list))

struct snd_soc_dai_link_component { const char *name; diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index debaf1f..98ef066 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -420,13 +420,10 @@ int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream) struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - /* FIXME: use 1st pointer */ + /* FIXME: use 1st pointer */ + for_each_rtd_components(rtd, rtdcom, component) if (component->driver->pointer) return component->driver->pointer(component, substream); - }

return 0; } @@ -438,14 +435,11 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - /* FIXME: use 1st ioctl */ + /* FIXME: use 1st ioctl */ + for_each_rtd_components(rtd, rtdcom, component) if (component->driver->ioctl) return component->driver->ioctl(component, substream, cmd, arg); - }

return snd_pcm_lib_ioctl(substream, cmd, arg); } @@ -458,14 +452,11 @@ int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream, struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - /* FIXME. it returns 1st copy now */ + /* FIXME. it returns 1st copy now */ + for_each_rtd_components(rtd, rtdcom, component) if (component->driver->copy_user) return component->driver->copy_user( component, substream, channel, pos, buf, bytes); - }

return -EINVAL; } @@ -478,10 +469,8 @@ struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream, struct snd_soc_component *component; struct page *page;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - /* FIXME. it returns 1st page now */ + /* FIXME. it returns 1st page now */ + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->page) { page = component->driver->page(component, substream, offset); @@ -500,14 +489,11 @@ int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream, struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - /* FIXME. it returns 1st mmap now */ + /* FIXME. it returns 1st mmap now */ + for_each_rtd_components(rtd, rtdcom, component) if (component->driver->mmap) return component->driver->mmap(component, substream, vma); - }

return -EINVAL; } @@ -519,9 +505,7 @@ int snd_soc_pcm_component_new(struct snd_pcm *pcm) struct snd_soc_component *component; int ret;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->pcm_construct) { ret = component->driver->pcm_construct(component, rtd); if (ret < 0) @@ -538,10 +522,7 @@ void snd_soc_pcm_component_free(struct snd_pcm *pcm) struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_component *component;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) if (component->driver->pcm_destruct) component->driver->pcm_destruct(component, pcm); - } } diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 9e54d8a..61f2303 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -28,9 +28,7 @@ static int soc_compr_components_open(struct snd_compr_stream *cstream, struct snd_soc_rtdcom_list *rtdcom; int ret;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->open) continue; @@ -57,9 +55,7 @@ static int soc_compr_components_free(struct snd_compr_stream *cstream, struct snd_soc_component *component; struct snd_soc_rtdcom_list *rtdcom;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component == last) break;

@@ -353,9 +349,7 @@ static int soc_compr_components_trigger(struct snd_compr_stream *cstream, struct snd_soc_rtdcom_list *rtdcom; int ret;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->trigger) continue; @@ -458,9 +452,7 @@ static int soc_compr_components_set_params(struct snd_compr_stream *cstream, struct snd_soc_rtdcom_list *rtdcom; int ret;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->set_params) continue; @@ -601,9 +593,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, goto err; }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->get_params) continue; @@ -627,9 +617,7 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,

mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->get_caps) continue; @@ -652,9 +640,7 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,

mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->get_codec_caps) continue; @@ -684,9 +670,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) goto err; }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->ack) continue; @@ -715,9 +699,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, if (cpu_dai->driver->cops && cpu_dai->driver->cops->pointer) cpu_dai->driver->cops->pointer(cstream, tstamp, cpu_dai);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->pointer) continue; @@ -740,9 +722,7 @@ static int soc_compr_copy(struct snd_compr_stream *cstream,

mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->copy) continue; @@ -770,9 +750,7 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream, return ret; }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->set_metadata) continue; @@ -801,9 +779,7 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream, return ret; }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->get_metadata) continue; @@ -932,9 +908,7 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->compr_ops || !component->driver->compr_ops->copy) continue; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index bd2ac19..0603702 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -293,10 +293,11 @@ static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *component) { struct snd_soc_rtdcom_list *rtdcom; + struct snd_soc_component *comp;

- for_each_rtdcom(rtd, rtdcom) { + for_each_rtd_components(rtd, rtdcom, comp) { /* already connected */ - if (rtdcom->component == component) + if (comp == component) return 0; }

@@ -327,6 +328,7 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, const char *driver_name) { struct snd_soc_rtdcom_list *rtdcom; + struct snd_soc_component *component;

if (!driver_name) return NULL; @@ -339,8 +341,8 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd, * But, if many components which have same driver name are connected * to 1 rtd, this function will return 1st found component. */ - for_each_rtdcom(rtd, rtdcom) { - const char *component_name = rtdcom->component->driver->name; + for_each_rtd_components(rtd, rtdcom, component) { + const char *component_name = component->driver->name;

if (!component_name) continue; @@ -1248,9 +1250,7 @@ static void soc_remove_link_components(struct snd_soc_card *card)

for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->remove_order != order) continue;

@@ -1269,9 +1269,7 @@ static int soc_probe_link_components(struct snd_soc_card *card)

for_each_comp_order(order) { for_each_card_rtds(card, rtd) { - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component->driver->probe_order != order) continue;

@@ -1520,9 +1518,7 @@ static int soc_link_init(struct snd_soc_card *card, * topology based drivers can use the DAI link id field to set PCM * device number and then use rtd + a base offset of the BEs. */ - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (!component->driver->use_dai_pcm_id) continue;

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 5d973ac..b890481 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -118,11 +118,8 @@ bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) return true;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) ignore &= !component->driver->use_pmdown_time; - }

return ignore; } @@ -435,8 +432,7 @@ static int soc_pcm_components_open(struct snd_pcm_substream *substream, struct snd_soc_component *component; int ret = 0;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; + for_each_rtd_components(rtd, rtdcom, component) { *last = component;

ret = snd_soc_component_module_get_when_open(component); @@ -467,9 +463,7 @@ static int soc_pcm_components_close(struct snd_pcm_substream *substream, struct snd_soc_component *component; int ret = 0;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component == last) break;

@@ -500,9 +494,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) for_each_rtd_codec_dai(rtd, i, codec_dai) pinctrl_pm_select_default_state(codec_dai->dev);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { pm_runtime_get_sync(component->dev); }

@@ -625,9 +617,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) out: mutex_unlock(&rtd->card->pcm_mutex);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { pm_runtime_mark_last_busy(component->dev); pm_runtime_put_autosuspend(component->dev); } @@ -740,9 +730,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)

mutex_unlock(&rtd->card->pcm_mutex);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { pm_runtime_mark_last_busy(component->dev); pm_runtime_put_autosuspend(component->dev); } @@ -782,9 +770,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) } }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { ret = snd_soc_component_prepare(component, substream); if (ret < 0) { dev_err(component->dev, @@ -849,9 +835,7 @@ static int soc_pcm_components_hw_free(struct snd_pcm_substream *substream, struct snd_soc_component *component; int ret = 0;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { if (component == last) break;

@@ -945,9 +929,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,

snd_soc_dapm_update_dai(substream, params, cpu_dai);

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { ret = snd_soc_component_hw_params(component, substream, params); if (ret < 0) { dev_err(component->dev, @@ -1062,9 +1044,7 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) return ret; }

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { ret = snd_soc_component_trigger(component, substream, cmd); if (ret < 0) return ret; @@ -1102,9 +1082,7 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) if (ret < 0) return ret;

- for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - + for_each_rtd_components(rtd, rtdcom, component) { ret = snd_soc_component_trigger(component, substream, cmd); if (ret < 0) return ret; @@ -2886,6 +2864,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_rtdcom_list *rtdcom; + struct snd_soc_component *component; struct snd_pcm *pcm; char new_name[64]; int ret = 0, playback = 0, capture = 0; @@ -2997,8 +2976,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) rtd->ops.ioctl = snd_soc_pcm_component_ioctl; }

- for_each_rtdcom(rtd, rtdcom) { - const struct snd_soc_component_driver *drv = rtdcom->component->driver; + for_each_rtd_components(rtd, rtdcom, component) { + const struct snd_soc_component_driver *drv = component->driver;

if (drv->copy_user) rtd->ops.copy_user = snd_soc_pcm_component_copy_user;