diff options
author | Arnd Bergmann <arnd@arndb.de> | 2018-03-14 17:26:06 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2018-03-14 17:35:29 +0100 |
commit | 6ca1118551ca5bb267e75faa6b944679ca195423 (patch) | |
tree | 02121cc3b47834b143eacba3cb8f6072c3c9badc /sound/soc/blackfin/bf5xx-i2s-pcm.c | |
parent | ASoC: soc-utils: replace codec to component (diff) | |
download | linux-6ca1118551ca5bb267e75faa6b944679ca195423.tar.xz linux-6ca1118551ca5bb267e75faa6b944679ca195423.zip |
ASoC: remove blackfin drivers
The blackfin architecture is getting removed, so the ASoC drivers
are all obsolete as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/blackfin/bf5xx-i2s-pcm.c')
-rw-r--r-- | sound/soc/blackfin/bf5xx-i2s-pcm.c | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c deleted file mode 100644 index 6712b01dabd1..000000000000 --- a/sound/soc/blackfin/bf5xx-i2s-pcm.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * File: sound/soc/blackfin/bf5xx-i2s-pcm.c - * Author: Cliff Cai <Cliff.Cai@analog.com> - * - * Created: Tue June 06 2008 - * Description: DMA driver for i2s codec - * - * Modified: - * Copyright 2008 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/gfp.h> - -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> - -#include <asm/dma.h> - -#include "bf5xx-sport.h" -#include "bf5xx-i2s-pcm.h" - -static void bf5xx_dma_irq(void *data) -{ - struct snd_pcm_substream *pcm = data; - snd_pcm_period_elapsed(pcm); -} - -static const struct snd_pcm_hardware bf5xx_pcm_hardware = { - .info = SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_BLOCK_TRANSFER, - .period_bytes_min = 32, - .period_bytes_max = 0x10000, - .periods_min = 1, - .periods_max = PAGE_SIZE/32, - .buffer_bytes_max = 0x20000, /* 128 kbytes */ - .fifo_size = 16, -}; - -static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - unsigned int buffer_size = params_buffer_bytes(params); - struct bf5xx_i2s_pcm_data *dma_data; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - if (dma_data->tdm_mode) - buffer_size = buffer_size / params_channels(params) * 8; - - return snd_pcm_lib_malloc_pages(substream, buffer_size); -} - -static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream) -{ - snd_pcm_lib_free_pages(substream); - - return 0; -} - -static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - struct sport_device *sport = runtime->private_data; - int period_bytes = frames_to_bytes(runtime, runtime->period_size); - struct bf5xx_i2s_pcm_data *dma_data; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - if (dma_data->tdm_mode) - period_bytes = period_bytes / runtime->channels * 8; - - pr_debug("%s enter\n", __func__); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - sport_set_tx_callback(sport, bf5xx_dma_irq, substream); - sport_config_tx_dma(sport, runtime->dma_area, - runtime->periods, period_bytes); - } else { - sport_set_rx_callback(sport, bf5xx_dma_irq, substream); - sport_config_rx_dma(sport, runtime->dma_area, - runtime->periods, period_bytes); - } - - return 0; -} - -static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct sport_device *sport = runtime->private_data; - int ret = 0; - - pr_debug("%s enter\n", __func__); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - sport_tx_start(sport); - else - sport_rx_start(sport); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - sport_tx_stop(sport); - else - sport_rx_stop(sport); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_pcm_runtime *runtime = substream->runtime; - struct sport_device *sport = runtime->private_data; - unsigned int diff; - snd_pcm_uframes_t frames; - struct bf5xx_i2s_pcm_data *dma_data; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - pr_debug("%s enter\n", __func__); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - diff = sport_curr_offset_tx(sport); - } else { - diff = sport_curr_offset_rx(sport); - } - - /* - * TX at least can report one frame beyond the end of the - * buffer if we hit the wraparound case - clamp to within the - * buffer as the ALSA APIs require. - */ - if (diff == snd_pcm_lib_buffer_bytes(substream)) - diff = 0; - - frames = bytes_to_frames(substream->runtime, diff); - if (dma_data->tdm_mode) - frames = frames * runtime->channels / 8; - - return frames; -} - -static int bf5xx_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai); - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_dma_buffer *buf = &substream->dma_buffer; - struct bf5xx_i2s_pcm_data *dma_data; - int ret; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - pr_debug("%s enter\n", __func__); - - snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware); - if (dma_data->tdm_mode) - runtime->hw.buffer_bytes_max /= 4; - else - runtime->hw.info |= SNDRV_PCM_INFO_MMAP; - - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (ret < 0) - goto out; - - if (sport_handle != NULL) { - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - sport_handle->tx_buf = buf->area; - else - sport_handle->rx_buf = buf->area; - - runtime->private_data = sport_handle; - } else { - pr_err("sport_handle is NULL\n"); - return -1; - } - return 0; - - out: - return ret; -} - -static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *vma) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - size_t size = vma->vm_end - vma->vm_start; - vma->vm_start = (unsigned long)runtime->dma_area; - vma->vm_end = vma->vm_start + size; - vma->vm_flags |= VM_SHARED; - - return 0 ; -} - -static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void *buf, unsigned long 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; - struct bf5xx_i2s_pcm_data *dma_data; - unsigned int i; - void *src, *dst; - - dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - - if (dma_data->tdm_mode) { - pos = bytes_to_frames(runtime, pos); - count = bytes_to_frames(runtime, count); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - src = buf; - dst = runtime->dma_area; - dst += pos * sample_size * 8; - - while (count--) { - for (i = 0; i < runtime->channels; i++) { - memcpy(dst + dma_data->map[i] * - sample_size, src, sample_size); - src += sample_size; - } - dst += 8 * sample_size; - } - } else { - src = runtime->dma_area; - src += pos * sample_size * 8; - dst = buf; - - while (count--) { - for (i = 0; i < runtime->channels; i++) { - memcpy(dst, src + dma_data->map[i] * - sample_size, sample_size); - dst += sample_size; - } - src += 8 * sample_size; - } - } - } else { - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - src = buf; - dst = runtime->dma_area; - dst += pos; - } else { - src = runtime->dma_area; - src += pos; - dst = buf; - } - - memcpy(dst, src, count); - } - - return 0; -} - -static int bf5xx_pcm_copy_user(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void __user *buf, unsigned long count) -{ - return bf5xx_pcm_copy(substream, channel, pos, (void *)buf, count); -} - -static int bf5xx_pcm_silence(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - unsigned long 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 = bytes_to_frames(runtime, pos) * 8 * sample_size; - samples = bytes_to_frames(runtime, count) * 8; - } else { - offset = pos; - samples = bytes_to_samples(runtime, count); - } - - snd_pcm_format_set_silence(runtime->format, buf + offset, samples); - - return 0; -} - -static const struct snd_pcm_ops bf5xx_pcm_i2s_ops = { - .open = bf5xx_pcm_open, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = bf5xx_pcm_hw_params, - .hw_free = bf5xx_pcm_hw_free, - .prepare = bf5xx_pcm_prepare, - .trigger = bf5xx_pcm_trigger, - .pointer = bf5xx_pcm_pointer, - .mmap = bf5xx_pcm_mmap, - .copy_user = bf5xx_pcm_copy_user, - .copy_kernel = bf5xx_pcm_copy, - .fill_silence = bf5xx_pcm_silence, -}; - -static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd) -{ - struct snd_card *card = rtd->card->snd_card; - size_t size = bf5xx_pcm_hardware.buffer_bytes_max; - int ret; - - pr_debug("%s enter\n", __func__); - ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); - if (ret) - return ret; - - return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, - SNDRV_DMA_TYPE_DEV, card->dev, size, size); -} - -static struct snd_soc_component_driver bf5xx_i2s_soc_component = { - .ops = &bf5xx_pcm_i2s_ops, - .pcm_new = bf5xx_pcm_i2s_new, -}; - -static int bfin_i2s_soc_platform_probe(struct platform_device *pdev) -{ - return devm_snd_soc_register_component(&pdev->dev, - &bf5xx_i2s_soc_component, NULL, 0); -} - -static struct platform_driver bfin_i2s_pcm_driver = { - .driver = { - .name = "bfin-i2s-pcm-audio", - }, - - .probe = bfin_i2s_soc_platform_probe, -}; - -module_platform_driver(bfin_i2s_pcm_driver); - -MODULE_AUTHOR("Cliff Cai"); -MODULE_DESCRIPTION("ADI Blackfin I2S PCM DMA module"); -MODULE_LICENSE("GPL"); |