linux/sound/soc/samsung/smdk_wm8580.c

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// SPDX-License-Identifier: GPL-2.0+
//
// Copyright (c) 2009 Samsung Electronics Co. Ltd
// Author: Jaswinder Singh <jassisinghbrar@gmail.com>
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include "../codecs/wm8580.h"
#include "i2s.h"
/*
* Default CFG switch settings to use this driver:
*
* SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On
*/
/* SMDK has a 12MHZ crystal attached to WM8580 */
#define SMDK_WM8580_FREQ 12000000
static int smdk_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
ASoC: multi-component - ASoC Multi-Component Support This patch extends the ASoC API to allow sound cards to have more than one CODEC and more than one platform DMA controller. This is achieved by dividing some current ASoC structures that contain both driver data and device data into structures that only either contain device data or driver data. i.e. struct snd_soc_codec ---> struct snd_soc_codec (device data) +-> struct snd_soc_codec_driver (driver data) struct snd_soc_platform ---> struct snd_soc_platform (device data) +-> struct snd_soc_platform_driver (driver data) struct snd_soc_dai ---> struct snd_soc_dai (device data) +-> struct snd_soc_dai_driver (driver data) struct snd_soc_device ---> deleted This now allows ASoC to be more tightly aligned with the Linux driver model and also means that every ASoC codec, platform and (platform) DAI is a kernel device. ASoC component private data is now stored as device private data. The ASoC sound card struct snd_soc_card has also been updated to store lists of it's components rather than a pointer to a codec and platform. The PCM runtime struct soc_pcm_runtime now has pointers to all its components. This patch adds DAPM support for ASoC multi-component and removes struct snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec or runtime PCM level basis rather than using snd_soc_socdev. Other notable multi-component changes:- * Stream operations now de-reference less structures. * close_delayed work() now runs on a DAI basis rather than looping all DAIs in a card. * PM suspend()/resume() operations can now handle N CODECs and Platforms per sound card. * Added soc_bind_dai_link() to bind the component devices to the sound card. * Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove DAI link components. * sysfs entries can now be registered per component per card. * snd_soc_new_pcms() functionailty rolled into dai_link_probe(). * snd_soc_register_codec() now does all the codec list and mutex init. This patch changes the probe() and remove() of the CODEC drivers as follows:- o Make CODEC driver a platform driver o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core. o Removed all static codec pointers (drivers now support > 1 codec dev) o snd_soc_register_pcms() now done by core. o snd_soc_register_dai() folded into snd_soc_register_codec(). CS4270 portions: Acked-by: Timur Tabi <timur@freescale.com> Some TLV320aic23 and Cirrus platform fixes. Signed-off-by: Ryan Mallon <ryan@bluewatersys.com> TI CODEC and OMAP fixes Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Samsung platform and misc fixes :- Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Seungwhan Youn <sw.youn@samsung.com> MPC8610 and PPC fixes. Signed-off-by: Timur Tabi <timur@freescale.com> i.MX fixes and some core fixes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> J4740 platform fixes:- Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> CC: Tony Lindgren <tony@atomide.com> CC: Nicolas Ferre <nicolas.ferre@atmel.com> CC: Kevin Hilman <khilman@deeprootsystems.com> CC: Sascha Hauer <s.hauer@pengutronix.de> CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp> CC: Kuninori Morimoto <morimoto.kuninori@renesas.com> CC: Daniel Gloeckner <dg@emlix.com> CC: Manuel Lauss <mano@roarinelk.homelinux.net> CC: Mike Frysinger <vapier.adi@gmail.com> CC: Arnaud Patard <apatard@mandriva.com> CC: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-03-18 04:15:21 +08:00
struct snd_soc_dai *codec_dai = rtd->codec_dai;
unsigned int pll_out;
int rfs, ret;
switch (params_width(params)) {
case 8:
case 16:
break;
default:
return -EINVAL;
}
/* The Fvco for WM8580 PLLs must fall within [90,100]MHz.
* This criterion can't be met if we request PLL output
* as {8000x256, 64000x256, 11025x256}Hz.
* As a wayout, we rather change rfs to a minimum value that
* results in (params_rate(params) * rfs), and itself, acceptable
* to both - the CODEC and the CPU.
*/
switch (params_rate(params)) {
case 16000:
case 22050:
case 32000:
case 44100:
case 48000:
case 88200:
case 96000:
rfs = 256;
break;
case 64000:
rfs = 384;
break;
case 8000:
case 11025:
rfs = 512;
break;
default:
return -EINVAL;
}
pll_out = params_rate(params) * rfs;
/* Set WM8580 to drive MCLK from its PLLA */
ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK,
WM8580_CLKSRC_PLLA);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0,
SMDK_WM8580_FREQ, pll_out);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA,
pll_out, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
/*
* SMDK WM8580 DAI operations.
*/
static struct snd_soc_ops smdk_ops = {
.hw_params = smdk_hw_params,
};
/* SMDK Playback widgets */
static const struct snd_soc_dapm_widget smdk_wm8580_dapm_widgets[] = {
SND_SOC_DAPM_HP("Front", NULL),
SND_SOC_DAPM_HP("Center+Sub", NULL),
SND_SOC_DAPM_HP("Rear", NULL),
SND_SOC_DAPM_MIC("MicIn", NULL),
SND_SOC_DAPM_LINE("LineIn", NULL),
};
/* SMDK-PAIFTX connections */
static const struct snd_soc_dapm_route smdk_wm8580_audio_map[] = {
/* MicIn feeds AINL */
{"AINL", NULL, "MicIn"},
/* LineIn feeds AINL/R */
{"AINL", NULL, "LineIn"},
{"AINR", NULL, "LineIn"},
/* Front Left/Right are fed VOUT1L/R */
{"Front", NULL, "VOUT1L"},
{"Front", NULL, "VOUT1R"},
/* Center/Sub are fed VOUT2L/R */
{"Center+Sub", NULL, "VOUT2L"},
{"Center+Sub", NULL, "VOUT2R"},
/* Rear Left/Right are fed VOUT3L/R */
{"Rear", NULL, "VOUT3L"},
{"Rear", NULL, "VOUT3R"},
};
static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd)
{
/* Enabling the microphone requires the fitting of a 0R
* resistor to connect the line from the microphone jack.
*/
snd_soc_dapm_disable_pin(&rtd->card->dapm, "MicIn");
return 0;
}
enum {
PRI_PLAYBACK = 0,
PRI_CAPTURE,
};
#define SMDK_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
SND_SOC_DAIFMT_CBM_CFM)
static struct snd_soc_dai_link smdk_dai[] = {
[PRI_PLAYBACK] = { /* Primary Playback i/f */
.name = "WM8580 PAIF RX",
.stream_name = "Playback",
.cpu_dai_name = "samsung-i2s.2",
.codec_dai_name = "wm8580-hifi-playback",
.platform_name = "samsung-i2s.0",
.codec_name = "wm8580.0-001b",
.dai_fmt = SMDK_DAI_FMT,
.ops = &smdk_ops,
},
[PRI_CAPTURE] = { /* Primary Capture i/f */
.name = "WM8580 PAIF TX",
.stream_name = "Capture",
.cpu_dai_name = "samsung-i2s.2",
.codec_dai_name = "wm8580-hifi-capture",
.platform_name = "samsung-i2s.0",
.codec_name = "wm8580.0-001b",
.dai_fmt = SMDK_DAI_FMT,
.init = smdk_wm8580_init_paiftx,
.ops = &smdk_ops,
},
};
static struct snd_soc_card smdk = {
.name = "SMDK-I2S",
.owner = THIS_MODULE,
.dai_link = smdk_dai,
.num_links = ARRAY_SIZE(smdk_dai),
.dapm_widgets = smdk_wm8580_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(smdk_wm8580_dapm_widgets),
.dapm_routes = smdk_wm8580_audio_map,
.num_dapm_routes = ARRAY_SIZE(smdk_wm8580_audio_map),
};
static struct platform_device *smdk_snd_device;
static int __init smdk_audio_init(void)
{
int ret;
smdk_snd_device = platform_device_alloc("soc-audio", -1);
if (!smdk_snd_device)
return -ENOMEM;
platform_set_drvdata(smdk_snd_device, &smdk);
ret = platform_device_add(smdk_snd_device);
if (ret)
platform_device_put(smdk_snd_device);
return ret;
}
module_init(smdk_audio_init);
static void __exit smdk_audio_exit(void)
{
platform_device_unregister(smdk_snd_device);
}
module_exit(smdk_audio_exit);
MODULE_AUTHOR("Jaswinder Singh, jassisinghbrar@gmail.com");
MODULE_DESCRIPTION("ALSA SoC SMDK WM8580");
MODULE_LICENSE("GPL");