linux_dsm_epyc7002/sound/soc/ti/sdma-pcm.c
Alexander A. Klimov 3323a148fd
ASoC: omap: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200718112403.13709-1-grandmaster@al2klimov.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-23 19:52:24 +01:00

72 lines
1.9 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#include <linux/device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include "sdma-pcm.h"
static const struct snd_pcm_hardware sdma_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
SNDRV_PCM_INFO_INTERLEAVED,
.period_bytes_min = 32,
.period_bytes_max = 64 * 1024,
.buffer_bytes_max = 128 * 1024,
.periods_min = 2,
.periods_max = 255,
};
static const struct snd_dmaengine_pcm_config sdma_dmaengine_pcm_config = {
.pcm_hardware = &sdma_pcm_hardware,
.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
.prealloc_buffer_size = 128 * 1024,
};
int sdma_pcm_platform_register(struct device *dev,
char *txdmachan, char *rxdmachan)
{
struct snd_dmaengine_pcm_config *config;
unsigned int flags = 0;
/* Standard names for the directions: 'tx' and 'rx' */
if (!txdmachan && !rxdmachan)
return devm_snd_dmaengine_pcm_register(dev,
&sdma_dmaengine_pcm_config, 0);
config = devm_kzalloc(dev, sizeof(*config), GFP_KERNEL);
if (!config)
return -ENOMEM;
*config = sdma_dmaengine_pcm_config;
if (!txdmachan || !rxdmachan) {
/* One direction only PCM */
flags |= SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX;
if (!txdmachan) {
txdmachan = rxdmachan;
rxdmachan = NULL;
}
}
config->chan_names[0] = txdmachan;
config->chan_names[1] = rxdmachan;
return devm_snd_dmaengine_pcm_register(dev, config, flags);
}
EXPORT_SYMBOL_GPL(sdma_pcm_platform_register);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("sDMA PCM ASoC platform driver");
MODULE_LICENSE("GPL v2");