ASoC: drop support for PlayPaq with WM8510
SoC Audio support for PlayPaq with WM8510 got added in commit 9aaca9683b
("[ALSA] Revised AT32 ASoC Patch"). That support depends on
BOARD_PLAYPAQ. That Kconfig symbol didn't exist when that support got
added in v2.6.27. It still doesn't. It has never been possible to even
build this driver. Drop it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Paul Bolle
Mark Brown
parent
380c883038
commit
4ca8af579c
@ -1,6 +1,6 @@
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config SND_ATMEL_SOC
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config SND_ATMEL_SOC
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tristate "SoC Audio for the Atmel System-on-Chip"
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tristate "SoC Audio for the Atmel System-on-Chip"
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depends on ARCH_AT91 || AVR32
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depends on ARCH_AT91
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help
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help
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Say Y or M if you want to add support for codecs attached to
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Say Y or M if you want to add support for codecs attached to
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the ATMEL SSC interface. You will also need
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the ATMEL SSC interface. You will also need
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@ -24,25 +24,6 @@ config SND_AT91_SOC_SAM9G20_WM8731
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Say Y if you want to add support for SoC audio on WM8731-based
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Say Y if you want to add support for SoC audio on WM8731-based
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AT91sam9g20 evaluation board.
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AT91sam9g20 evaluation board.
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config SND_AT32_SOC_PLAYPAQ
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tristate "SoC Audio support for PlayPaq with WM8510"
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depends on SND_ATMEL_SOC && BOARD_PLAYPAQ && AT91_PROGRAMMABLE_CLOCKS
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select SND_ATMEL_SOC_SSC
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select SND_SOC_WM8510
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help
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Say Y or M here if you want to add support for SoC audio
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on the LRS PlayPaq.
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config SND_AT32_SOC_PLAYPAQ_SLAVE
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bool "Run CODEC on PlayPaq in slave mode"
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depends on SND_AT32_SOC_PLAYPAQ
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default n
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help
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Say Y if you want to run with the AT32 SSC generating the BCLK
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and FRAME signals on the PlayPaq. Unless you want to play
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with the AT32 as the SSC master, you probably want to say N here,
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as this will give you better sound quality.
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config SND_AT91_SOC_AFEB9260
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config SND_AT91_SOC_AFEB9260
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tristate "SoC Audio support for AFEB9260 board"
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tristate "SoC Audio support for AFEB9260 board"
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depends on ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
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depends on ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
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@ -8,9 +8,5 @@ obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
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# AT91 Machine Support
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# AT91 Machine Support
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snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o
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snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o
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# AT32 Machine Support
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snd-soc-playpaq-objs := playpaq_wm8510.o
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obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
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obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
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obj-$(CONFIG_SND_AT32_SOC_PLAYPAQ) += snd-soc-playpaq.o
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obj-$(CONFIG_SND_AT91_SOC_AFEB9260) += snd-soc-afeb9260.o
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obj-$(CONFIG_SND_AT91_SOC_AFEB9260) += snd-soc-afeb9260.o
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@ -1,473 +0,0 @@
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/* sound/soc/at32/playpaq_wm8510.c
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* ASoC machine driver for PlayPaq using WM8510 codec
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*
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* Copyright (C) 2008 Long Range Systems
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* Geoffrey Wossum <gwossum@acm.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This code is largely inspired by sound/soc/at91/eti_b1_wm8731.c
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*
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* NOTE: If you don't have the AT32 enhanced portmux configured (which
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* isn't currently in the mainline or Atmel patched kernel), you will
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* need to set the MCLK pin (PA30) to peripheral A in your board initialization
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* code. Something like:
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* at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
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*
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*/
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/* #define DEBUG */
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/clk.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <mach/at32ap700x.h>
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#include <mach/portmux.h>
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#include "../codecs/wm8510.h"
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#include "atmel-pcm.h"
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#include "atmel_ssc_dai.h"
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/*-------------------------------------------------------------------------*\
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* constants
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\*-------------------------------------------------------------------------*/
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#define MCLK_PIN GPIO_PIN_PA(30)
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#define MCLK_PERIPH GPIO_PERIPH_A
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/*-------------------------------------------------------------------------*\
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* data types
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\*-------------------------------------------------------------------------*/
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/* SSC clocking data */
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struct ssc_clock_data {
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/* CMR div */
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unsigned int cmr_div;
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/* Frame period (as needed by xCMR.PERIOD) */
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unsigned int period;
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/* The SSC clock rate these settings where calculated for */
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unsigned long ssc_rate;
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};
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/*-------------------------------------------------------------------------*\
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* module data
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\*-------------------------------------------------------------------------*/
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static struct clk *_gclk0;
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static struct clk *_pll0;
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#define CODEC_CLK (_gclk0)
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/*-------------------------------------------------------------------------*\
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* Sound SOC operations
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\*-------------------------------------------------------------------------*/
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#if defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
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static struct ssc_clock_data playpaq_wm8510_calc_ssc_clock(
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *cpu_dai)
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{
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struct at32_ssc_info *ssc_p = snd_soc_dai_get_drvdata(cpu_dai);
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struct ssc_device *ssc = ssc_p->ssc;
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struct ssc_clock_data cd;
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unsigned int rate, width_bits, channels;
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unsigned int bitrate, ssc_div;
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unsigned actual_rate;
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/*
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* Figure out required bitrate
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*/
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rate = params_rate(params);
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channels = params_channels(params);
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width_bits = snd_pcm_format_physical_width(params_format(params));
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bitrate = rate * width_bits * channels;
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/*
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* Figure out required SSC divider and period for required bitrate
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*/
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cd.ssc_rate = clk_get_rate(ssc->clk);
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ssc_div = cd.ssc_rate / bitrate;
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cd.cmr_div = ssc_div / 2;
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if (ssc_div & 1) {
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/* round cmr_div up */
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cd.cmr_div++;
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}
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cd.period = width_bits - 1;
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/*
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* Find actual rate, compare to requested rate
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*/
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actual_rate = (cd.ssc_rate / (cd.cmr_div * 2)) / (2 * (cd.period + 1));
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pr_debug("playpaq_wm8510: Request rate = %u, actual rate = %u\n",
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rate, actual_rate);
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return cd;
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}
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#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
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static int playpaq_wm8510_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct at32_ssc_info *ssc_p = snd_soc_dai_get_drvdata(cpu_dai);
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struct ssc_device *ssc = ssc_p->ssc;
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unsigned int pll_out = 0, bclk = 0, mclk_div = 0;
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int ret;
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/* Due to difficulties with getting the correct clocks from the AT32's
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* PLL0, we're going to let the CODEC be in charge of all the clocks
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*/
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#if !defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
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const unsigned int fmt = (SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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#else
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struct ssc_clock_data cd;
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const unsigned int fmt = (SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS);
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#endif
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if (ssc == NULL) {
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pr_warning("playpaq_wm8510_hw_params: ssc is NULL!\n");
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return -EINVAL;
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}
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/*
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* Figure out PLL and BCLK dividers for WM8510
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*/
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switch (params_rate(params)) {
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case 48000:
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pll_out = 24576000;
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mclk_div = WM8510_MCLKDIV_2;
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bclk = WM8510_BCLKDIV_8;
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break;
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case 44100:
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pll_out = 22579200;
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mclk_div = WM8510_MCLKDIV_2;
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bclk = WM8510_BCLKDIV_8;
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break;
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case 22050:
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pll_out = 22579200;
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mclk_div = WM8510_MCLKDIV_4;
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bclk = WM8510_BCLKDIV_8;
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break;
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case 16000:
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pll_out = 24576000;
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mclk_div = WM8510_MCLKDIV_6;
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bclk = WM8510_BCLKDIV_8;
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break;
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case 11025:
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pll_out = 22579200;
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mclk_div = WM8510_MCLKDIV_8;
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bclk = WM8510_BCLKDIV_8;
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break;
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case 8000:
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pll_out = 24576000;
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mclk_div = WM8510_MCLKDIV_12;
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bclk = WM8510_BCLKDIV_8;
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break;
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default:
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pr_warning("playpaq_wm8510: Unsupported sample rate %d\n",
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params_rate(params));
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return -EINVAL;
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}
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/*
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* set CPU and CODEC DAI configuration
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*/
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ret = snd_soc_dai_set_fmt(codec_dai, fmt);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: "
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"Failed to set CODEC DAI format (%d)\n",
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ret);
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return ret;
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}
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: "
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"Failed to set CPU DAI format (%d)\n",
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ret);
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return ret;
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}
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/*
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* Set CPU clock configuration
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*/
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#if defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
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cd = playpaq_wm8510_calc_ssc_clock(params, cpu_dai);
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pr_debug("playpaq_wm8510: cmr_div = %d, period = %d\n",
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cd.cmr_div, cd.period);
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ret = snd_soc_dai_set_clkdiv(cpu_dai, AT32_SSC_CMR_DIV, cd.cmr_div);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: Failed to set CPU CMR_DIV (%d)\n",
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ret);
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return ret;
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}
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ret = snd_soc_dai_set_clkdiv(cpu_dai, AT32_SSC_TCMR_PERIOD,
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cd.period);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: "
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"Failed to set CPU transmit period (%d)\n",
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ret);
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return ret;
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}
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#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
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/*
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* Set CODEC clock configuration
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*/
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pr_debug("playpaq_wm8510: "
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"pll_in = %ld, pll_out = %u, bclk = %x, mclk = %x\n",
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clk_get_rate(CODEC_CLK), pll_out, bclk, mclk_div);
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#if !defined CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE
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ret = snd_soc_dai_set_clkdiv(codec_dai, WM8510_BCLKDIV, bclk);
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if (ret < 0) {
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pr_warning
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("playpaq_wm8510: Failed to set CODEC DAI BCLKDIV (%d)\n",
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ret);
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return ret;
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}
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#endif /* CONFIG_SND_AT32_SOC_PLAYPAQ_SLAVE */
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ret = snd_soc_dai_set_pll(codec_dai, 0, 0,
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clk_get_rate(CODEC_CLK), pll_out);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: Failed to set CODEC DAI PLL (%d)\n",
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ret);
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return ret;
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}
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ret = snd_soc_dai_set_clkdiv(codec_dai, WM8510_MCLKDIV, mclk_div);
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if (ret < 0) {
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pr_warning("playpaq_wm8510: Failed to set CODEC MCLKDIV (%d)\n",
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ret);
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return ret;
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}
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return 0;
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}
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static struct snd_soc_ops playpaq_wm8510_ops = {
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.hw_params = playpaq_wm8510_hw_params,
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};
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static const struct snd_soc_dapm_widget playpaq_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Int Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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};
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static const struct snd_soc_dapm_route intercon[] = {
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/* speaker connected to SPKOUT */
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{"Ext Spk", NULL, "SPKOUTP"},
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{"Ext Spk", NULL, "SPKOUTN"},
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{"Mic Bias", NULL, "Int Mic"},
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{"MICN", NULL, "Mic Bias"},
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{"MICP", NULL, "Mic Bias"},
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};
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static int playpaq_wm8510_init(struct snd_soc_pcm_runtime *rtd)
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||||||
{
|
|
||||||
struct snd_soc_codec *codec = rtd->codec;
|
|
||||||
struct snd_soc_dapm_context *dapm = &codec->dapm;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Add DAPM widgets
|
|
||||||
*/
|
|
||||||
for (i = 0; i < ARRAY_SIZE(playpaq_dapm_widgets); i++)
|
|
||||||
snd_soc_dapm_new_control(dapm, &playpaq_dapm_widgets[i]);
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Setup audio path interconnects
|
|
||||||
*/
|
|
||||||
snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/* always connected pins */
|
|
||||||
snd_soc_dapm_enable_pin(dapm, "Int Mic");
|
|
||||||
snd_soc_dapm_enable_pin(dapm, "Ext Spk");
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/* Make CSB show PLL rate */
|
|
||||||
snd_soc_dai_set_clkdiv(rtd->codec_dai, WM8510_OPCLKDIV,
|
|
||||||
WM8510_OPCLKDIV_1 | 4);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
static struct snd_soc_dai_link playpaq_wm8510_dai = {
|
|
||||||
.name = "WM8510",
|
|
||||||
.stream_name = "WM8510 PCM",
|
|
||||||
.cpu_dai_name= "atmel-ssc-dai.0",
|
|
||||||
.platform_name = "atmel-pcm-audio",
|
|
||||||
.codec_name = "wm8510-codec.0-0x1a",
|
|
||||||
.codec_dai_name = "wm8510-hifi",
|
|
||||||
.init = playpaq_wm8510_init,
|
|
||||||
.ops = &playpaq_wm8510_ops,
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
static struct snd_soc_card snd_soc_playpaq = {
|
|
||||||
.name = "LRS_PlayPaq_WM8510",
|
|
||||||
.dai_link = &playpaq_wm8510_dai,
|
|
||||||
.num_links = 1,
|
|
||||||
};
|
|
||||||
|
|
||||||
static struct platform_device *playpaq_snd_device;
|
|
||||||
|
|
||||||
|
|
||||||
static int __init playpaq_asoc_init(void)
|
|
||||||
{
|
|
||||||
int ret = 0;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Configure MCLK for WM8510
|
|
||||||
*/
|
|
||||||
_gclk0 = clk_get(NULL, "gclk0");
|
|
||||||
if (IS_ERR(_gclk0)) {
|
|
||||||
_gclk0 = NULL;
|
|
||||||
ret = PTR_ERR(_gclk0);
|
|
||||||
goto err_gclk0;
|
|
||||||
}
|
|
||||||
_pll0 = clk_get(NULL, "pll0");
|
|
||||||
if (IS_ERR(_pll0)) {
|
|
||||||
_pll0 = NULL;
|
|
||||||
ret = PTR_ERR(_pll0);
|
|
||||||
goto err_pll0;
|
|
||||||
}
|
|
||||||
ret = clk_set_parent(_gclk0, _pll0);
|
|
||||||
if (ret) {
|
|
||||||
pr_warning("snd-soc-playpaq: "
|
|
||||||
"Failed to set PLL0 as parent for DAC clock\n");
|
|
||||||
goto err_set_clk;
|
|
||||||
}
|
|
||||||
clk_set_rate(CODEC_CLK, 12000000);
|
|
||||||
clk_enable(CODEC_CLK);
|
|
||||||
|
|
||||||
#if defined CONFIG_AT32_ENHANCED_PORTMUX
|
|
||||||
at32_select_periph(MCLK_PIN, MCLK_PERIPH, 0);
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Create and register platform device
|
|
||||||
*/
|
|
||||||
playpaq_snd_device = platform_device_alloc("soc-audio", 0);
|
|
||||||
if (playpaq_snd_device == NULL) {
|
|
||||||
ret = -ENOMEM;
|
|
||||||
goto err_device_alloc;
|
|
||||||
}
|
|
||||||
|
|
||||||
platform_set_drvdata(playpaq_snd_device, &snd_soc_playpaq);
|
|
||||||
|
|
||||||
ret = platform_device_add(playpaq_snd_device);
|
|
||||||
if (ret) {
|
|
||||||
pr_warning("playpaq_wm8510: platform_device_add failed (%d)\n",
|
|
||||||
ret);
|
|
||||||
goto err_device_add;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
|
|
||||||
err_device_add:
|
|
||||||
if (playpaq_snd_device != NULL) {
|
|
||||||
platform_device_put(playpaq_snd_device);
|
|
||||||
playpaq_snd_device = NULL;
|
|
||||||
}
|
|
||||||
err_device_alloc:
|
|
||||||
err_set_clk:
|
|
||||||
if (_pll0 != NULL) {
|
|
||||||
clk_put(_pll0);
|
|
||||||
_pll0 = NULL;
|
|
||||||
}
|
|
||||||
err_pll0:
|
|
||||||
if (_gclk0 != NULL) {
|
|
||||||
clk_put(_gclk0);
|
|
||||||
_gclk0 = NULL;
|
|
||||||
}
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static void __exit playpaq_asoc_exit(void)
|
|
||||||
{
|
|
||||||
if (_gclk0 != NULL) {
|
|
||||||
clk_put(_gclk0);
|
|
||||||
_gclk0 = NULL;
|
|
||||||
}
|
|
||||||
if (_pll0 != NULL) {
|
|
||||||
clk_put(_pll0);
|
|
||||||
_pll0 = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
#if defined CONFIG_AT32_ENHANCED_PORTMUX
|
|
||||||
at32_free_pin(MCLK_PIN);
|
|
||||||
#endif
|
|
||||||
|
|
||||||
platform_device_unregister(playpaq_snd_device);
|
|
||||||
playpaq_snd_device = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
module_init(playpaq_asoc_init);
|
|
||||||
module_exit(playpaq_asoc_exit);
|
|
||||||
|
|
||||||
MODULE_AUTHOR("Geoffrey Wossum <gwossum@acm.org>");
|
|
||||||
MODULE_DESCRIPTION("ASoC machine driver for LRS PlayPaq");
|
|
||||||
MODULE_LICENSE("GPL");
|
|
||||||
Loading…
x
Reference in New Issue
Block a user