From 8cc64ae7ab6bd3f996652376a413e33842c88912 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 4 Sep 2018 17:58:56 +0200 Subject: [PATCH] staging: bcm2835-audio: Simplify PCM creation helpers All three functions to create PCM objects are fairly resemble, and can be unified to a single common helper. Signed-off-by: Takashi Iwai Tested-by: Stefan Wahren Signed-off-by: Greg Kroah-Hartman --- .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 87 ++++--------------- .../vc04_services/bcm2835-audio/bcm2835.c | 17 +++- .../vc04_services/bcm2835-audio/bcm2835.h | 9 +- 3 files changed, 32 insertions(+), 81 deletions(-) diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c index 5ddb8ee93cb2..98480d97cc2e 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c @@ -324,91 +324,36 @@ static const struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = { }; /* create a pcm device */ -int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels) +int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, const char *name, + int idx, enum snd_bcm2835_route route, + u32 numchannels, bool spdif) { struct snd_pcm *pcm; int err; - err = snd_pcm_new(chip->card, "bcm2835 ALSA", 0, numchannels, 0, &pcm); - if (err < 0) - return err; - pcm->private_data = chip; - pcm->nonatomic = true; - strcpy(pcm->name, "bcm2835 ALSA"); - chip->pcm = pcm; - chip->dest = AUDIO_DEST_AUTO; - chip->volume = 0; - chip->mute = CTRL_VOL_UNMUTE; /*disable mute on startup */ - /* set operators */ - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, - &snd_bcm2835_playback_ops); - - /* pre-allocation of buffers */ - /* NOTE: this may fail */ - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - chip->card->dev->parent, - snd_bcm2835_playback_hw.buffer_bytes_max, - snd_bcm2835_playback_hw.buffer_bytes_max); - - return 0; -} - -int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip) -{ - struct snd_pcm *pcm; - int err; - - err = snd_pcm_new(chip->card, "bcm2835 ALSA", 1, 1, 0, &pcm); - if (err < 0) - return err; - - pcm->private_data = chip; - pcm->nonatomic = true; - strcpy(pcm->name, "bcm2835 IEC958/HDMI"); - chip->pcm_spdif = pcm; - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, - &snd_bcm2835_playback_spdif_ops); - - /* pre-allocation of buffers */ - /* NOTE: this may fail */ - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - chip->card->dev->parent, - snd_bcm2835_playback_spdif_hw.buffer_bytes_max, snd_bcm2835_playback_spdif_hw.buffer_bytes_max); - - return 0; -} - -int snd_bcm2835_new_simple_pcm(struct bcm2835_chip *chip, - const char *name, - enum snd_bcm2835_route route, - u32 numchannels) -{ - struct snd_pcm *pcm; - int err; - - err = snd_pcm_new(chip->card, name, 0, numchannels, - 0, &pcm); + err = snd_pcm_new(chip->card, name, idx, numchannels, 0, &pcm); if (err) return err; pcm->private_data = chip; pcm->nonatomic = true; strcpy(pcm->name, name); - chip->pcm = pcm; - chip->dest = route; - chip->volume = 0; - chip->mute = CTRL_VOL_UNMUTE; + if (!spdif) { + chip->dest = route; + chip->volume = 0; + chip->mute = CTRL_VOL_UNMUTE; + } snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + spdif ? &snd_bcm2835_playback_spdif_ops : &snd_bcm2835_playback_ops); - snd_pcm_lib_preallocate_pages_for_all( - pcm, - SNDRV_DMA_TYPE_DEV, - chip->card->dev->parent, - snd_bcm2835_playback_hw.buffer_bytes_max, - snd_bcm2835_playback_hw.buffer_bytes_max); + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + chip->card->dev->parent, 128 * 1024, 128 * 1024); + if (spdif) + chip->pcm_spdif = pcm; + else + chip->pcm = pcm; return 0; } - diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c index 8a87c33b1ea9..2869f310086f 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c @@ -138,17 +138,26 @@ static int bcm2835_audio_alsa_newpcm(struct bcm2835_chip *chip, { int err; - err = snd_bcm2835_new_pcm(chip, numchannels - 1); + err = snd_bcm2835_new_pcm(chip, "bcm2835 ALSA", 0, AUDIO_DEST_AUTO, + numchannels - 1, false); if (err) return err; - err = snd_bcm2835_new_spdif_pcm(chip); + err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI", 1, 0, 1, true); if (err) return err; return 0; } +static int bcm2835_audio_simple_newpcm(struct bcm2835_chip *chip, + const char *name, + enum snd_bcm2835_route route, + u32 numchannels) +{ + return snd_bcm2835_new_pcm(chip, name, 0, route, numchannels, false); +} + static struct bcm2835_audio_driver bcm2835_audio_alsa = { .driver = { .name = "bcm2835_alsa", @@ -169,7 +178,7 @@ static struct bcm2835_audio_driver bcm2835_audio_hdmi = { .shortname = "bcm2835 HDMI", .longname = "bcm2835 HDMI", .minchannels = 1, - .newpcm = snd_bcm2835_new_simple_pcm, + .newpcm = bcm2835_audio_simple_newpcm, .newctl = snd_bcm2835_new_hdmi_ctl, .route = AUDIO_DEST_HDMI }; @@ -182,7 +191,7 @@ static struct bcm2835_audio_driver bcm2835_audio_headphones = { .shortname = "bcm2835 Headphones", .longname = "bcm2835 Headphones", .minchannels = 1, - .newpcm = snd_bcm2835_new_simple_pcm, + .newpcm = bcm2835_audio_simple_newpcm, .newctl = snd_bcm2835_new_headphones_ctl, .route = AUDIO_DEST_HEADPHONES }; diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h index 4e41069dc22a..e13435d1c205 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h @@ -84,12 +84,9 @@ struct bcm2835_alsa_stream { }; int snd_bcm2835_new_ctl(struct bcm2835_chip *chip); -int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels); -int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip); -int snd_bcm2835_new_simple_pcm(struct bcm2835_chip *chip, - const char *name, - enum snd_bcm2835_route route, - u32 numchannels); +int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, const char *name, + int idx, enum snd_bcm2835_route route, + u32 numchannels, bool spdif); int snd_bcm2835_new_hdmi_ctl(struct bcm2835_chip *chip); int snd_bcm2835_new_headphones_ctl(struct bcm2835_chip *chip);