From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: [PATCH RFC 23/26] ASoC: blackfin: Convert to copy_silence ops Date: Thu, 11 May 2017 23:09:22 +0200 Message-ID: <20170511210925.18208-24-tiwai@suse.de> References: <20170511210925.18208-1-tiwai@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id 0D95C267014 for ; Thu, 11 May 2017 23:09:32 +0200 (CEST) Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id AF9C0AEE8 for ; Thu, 11 May 2017 21:09:30 +0000 (UTC) In-Reply-To: <20170511210925.18208-1-tiwai@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Replace the copy and the silence ops with the new merged ops. The silence is performed only CONFIG_SND_BF5XX_MMAP_SUPPORT is set (since copy_silence ops is set only with this config), so in bf5xx-ac97.c we have a bit tricky macro for a slight optimization. Note that we don't need to take in_kernel into account on this architecture, so the conversion is easy otherwise. Signed-off-by: Takashi Iwai --- sound/soc/blackfin/bf5xx-ac97-pcm.c | 6 ++--- sound/soc/blackfin/bf5xx-ac97.c | 18 ++++++++++----- sound/soc/blackfin/bf5xx-i2s-pcm.c | 46 ++++++++++++------------------------- 3 files changed, 30 insertions(+), 40 deletions(-) diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c index 02ad2606fa19..2fdffa7d376c 100644 --- a/sound/soc/blackfin/bf5xx-ac97-pcm.c +++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c @@ -280,8 +280,8 @@ static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream, } #else static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, - snd_pcm_uframes_t pos, - void __user *buf, snd_pcm_uframes_t count) + snd_pcm_uframes_t pos, void __user *buf, + snd_pcm_uframes_t count, bool in_kernel) { struct snd_pcm_runtime *runtime = substream->runtime; unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1]; @@ -309,7 +309,7 @@ static struct snd_pcm_ops bf5xx_pcm_ac97_ops = { #if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT) .mmap = bf5xx_pcm_mmap, #else - .copy = bf5xx_pcm_copy, + .copy_silence = bf5xx_pcm_copy, #endif }; diff --git a/sound/soc/blackfin/bf5xx-ac97.c b/sound/soc/blackfin/bf5xx-ac97.c index a040cfe29fc0..d1f11d9ecb07 100644 --- a/sound/soc/blackfin/bf5xx-ac97.c +++ b/sound/soc/blackfin/bf5xx-ac97.c @@ -43,35 +43,41 @@ static struct sport_device *ac97_sport_handle; +#ifdef CONFIG_SND_BF5XX_MMAP_SUPPORT +#define GET_VAL(src) (*src++) /* copy only */ +#else +#define GET_VAL(src) (src ? *src++ : 0) /* copy/silence */ +#endif + void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, size_t count, unsigned int chan_mask) { while (count--) { dst->ac97_tag = TAG_VALID; if (chan_mask & SP_FL) { - dst->ac97_pcm_r = *src++; + dst->ac97_pcm_r = GET_VAL(src); dst->ac97_tag |= TAG_PCM_RIGHT; } if (chan_mask & SP_FR) { - dst->ac97_pcm_l = *src++; + dst->ac97_pcm_l = GET_VAL(src); dst->ac97_tag |= TAG_PCM_LEFT; } #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) if (chan_mask & SP_SR) { - dst->ac97_sl = *src++; + dst->ac97_sl = GET_VAL(src); dst->ac97_tag |= TAG_PCM_SL; } if (chan_mask & SP_SL) { - dst->ac97_sr = *src++; + dst->ac97_sr = GET_VAL(src); dst->ac97_tag |= TAG_PCM_SR; } if (chan_mask & SP_LFE) { - dst->ac97_lfe = *src++; + dst->ac97_lfe = GET_VAL(src); dst->ac97_tag |= TAG_PCM_LFE; } if (chan_mask & SP_FC) { - dst->ac97_center = *src++; + dst->ac97_center = GET_VAL(src); dst->ac97_tag |= TAG_PCM_CENTER; } #endif diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c index 6cba211da32e..5686c29fb058 100644 --- a/sound/soc/blackfin/bf5xx-i2s-pcm.c +++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c @@ -226,7 +226,8 @@ static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream, } static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, - snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count) + snd_pcm_uframes_t pos, void *buf, + snd_pcm_uframes_t count, bool in_kernel) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_pcm_runtime *runtime = substream->runtime; @@ -245,8 +246,14 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, while (count--) { for (i = 0; i < runtime->channels; i++) { - memcpy(dst + dma_data->map[i] * - sample_size, src, sample_size); + if (!buf) + memset(dst + dma_data->map[i] * + sample_size, 0, + sample_size); + else + memcpy(dst + dma_data->map[i] * + sample_size, src, + sample_size); src += sample_size; } dst += 8 * sample_size; @@ -276,34 +283,12 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel, dst = buf; } - memcpy(dst, src, frames_to_bytes(runtime, count)); - } - - return 0; -} - -static int bf5xx_pcm_silence(struct snd_pcm_substream *substream, - int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int sample_size = runtime->sample_bits / 8; - void *buf = runtime->dma_area; - struct bf5xx_i2s_pcm_data *dma_data; - unsigned int offset, samples; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - if (dma_data->tdm_mode) { - offset = pos * 8 * sample_size; - samples = count * 8; - } else { - offset = frames_to_bytes(runtime, pos); - samples = count * runtime->channels; + if (!buf) + memset(dst, 0, frames_to_bytes(runtime, count)); + else + memcpy(dst, src, frames_to_bytes(runtime, count)); } - snd_pcm_format_set_silence(runtime->format, buf + offset, samples); - return 0; } @@ -316,8 +301,7 @@ static struct snd_pcm_ops bf5xx_pcm_i2s_ops = { .trigger = bf5xx_pcm_trigger, .pointer = bf5xx_pcm_pointer, .mmap = bf5xx_pcm_mmap, - .copy = bf5xx_pcm_copy, - .silence = bf5xx_pcm_silence, + .copy_silence = bf5xx_pcm_copy, }; static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd) -- 2.12.2