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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 10:46:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 10:46:37 -0700
commitd3e458d78167102cc961237cfceef6fffc80c0b3 (patch)
treee9195c1294daf053614e63ac52b0b44a28479017 /sound/soc/ep93xx
parentf2e1fbb5f2177227f71c4fc0491e531dd7acd385 (diff)
parentd351cf4603edb2a5bfa9a48d06c425511c63f2a3 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (308 commits) ALSA: sound/pci/asihpi: check adapter index in hpi_ioctl ALSA: aloop - Fix possible IRQ lock inversion ALSA: sound/core: merge list_del()/list_add_tail() to list_move_tail() ALSA: ctxfi - use list_move() instead of list_del()/list_add() combination ALSA: firewire - msleep needs delay.h ALSA: firewire-lib, firewire-speakers: handle packet queueing errors ALSA: firewire-lib: allocate DMA buffer separately ALSA: firewire-lib: use no-info SYT for packets without SYT sample ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver ALSA: hda - Remove an unused variable in patch_realtek.c ALSA: hda - pin-adc-mux-dmic auto-configuration of 92HD8X codecs ALSA: hda - fix digital mic selection in mixer on 92HD8X codecs ALSA: hda - Move default input-src selection to init part ALSA: hda - Initialize special cases for input src in init phase ALSA: ctxfi - Clear input settings before initialization ALSA: ctxfi - Fix SPDIF status retrieval ALSA: ctxfi - Fix incorrect SPDIF status bit mask ALSA: ctxfi - Fix microphone boost codes/comments ALSA: atiixp - Fix wrong time-out checks during ac-link reset ALSA: intel8x0m: append 'm' to "r_intel8x0" ...
Diffstat (limited to 'sound/soc/ep93xx')
-rw-r--r--sound/soc/ep93xx/Kconfig9
-rw-r--r--sound/soc/ep93xx/Makefile2
-rw-r--r--sound/soc/ep93xx/edb93xx.c142
-rw-r--r--sound/soc/ep93xx/ep93xx-ac97.c1
-rw-r--r--sound/soc/ep93xx/ep93xx-i2s.c31
-rw-r--r--sound/soc/ep93xx/ep93xx-pcm.c4
6 files changed, 172 insertions, 17 deletions
diff --git a/sound/soc/ep93xx/Kconfig b/sound/soc/ep93xx/Kconfig
index 57429041189..91a28de9410 100644
--- a/sound/soc/ep93xx/Kconfig
+++ b/sound/soc/ep93xx/Kconfig
@@ -30,3 +30,12 @@ config SND_EP93XX_SOC_SIMONE
help
Say Y or M here if you want to add support for AC97 audio on the
Simplemachines Sim.One board.
+
+config SND_EP93XX_SOC_EDB93XX
+ tristate "SoC Audio support for Cirrus Logic EDB93xx boards"
+ depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A)
+ select SND_EP93XX_SOC_I2S
+ select SND_SOC_CS4271
+ help
+ Say Y or M here if you want to add support for I2S audio on the
+ Cirrus Logic EDB93xx boards.
diff --git a/sound/soc/ep93xx/Makefile b/sound/soc/ep93xx/Makefile
index 8e7977fb6b7..5514146cbdf 100644
--- a/sound/soc/ep93xx/Makefile
+++ b/sound/soc/ep93xx/Makefile
@@ -10,6 +10,8 @@ obj-$(CONFIG_SND_EP93XX_SOC_AC97) += snd-soc-ep93xx-ac97.o
# EP93XX Machine Support
snd-soc-snappercl15-objs := snappercl15.o
snd-soc-simone-objs := simone.o
+snd-soc-edb93xx-objs := edb93xx.o
obj-$(CONFIG_SND_EP93XX_SOC_SNAPPERCL15) += snd-soc-snappercl15.o
obj-$(CONFIG_SND_EP93XX_SOC_SIMONE) += snd-soc-simone.o
+obj-$(CONFIG_SND_EP93XX_SOC_EDB93XX) += snd-soc-edb93xx.o
diff --git a/sound/soc/ep93xx/edb93xx.c b/sound/soc/ep93xx/edb93xx.c
new file mode 100644
index 00000000000..d3aa15119d2
--- /dev/null
+++ b/sound/soc/ep93xx/edb93xx.c
@@ -0,0 +1,142 @@
+/*
+ * SoC audio for EDB93xx
+ *
+ * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
+ *
+ * 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.
+ *
+ * This driver support CS4271 codec being master or slave, working
+ * in control port mode, connected either via SPI or I2C.
+ * The data format accepted is I2S or left-justified.
+ * DAPM support not implemented.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include "ep93xx-pcm.h"
+
+#define edb93xx_has_audio() (machine_is_edb9301() || \
+ machine_is_edb9302() || \
+ machine_is_edb9302a() || \
+ machine_is_edb9307a() || \
+ machine_is_edb9315a())
+
+static int edb93xx_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int err;
+ unsigned int mclk_rate;
+ unsigned int rate = params_rate(params);
+
+ /*
+ * According to CS4271 datasheet we use MCLK/LRCK=256 for
+ * rates below 50kHz and 128 for higher sample rates
+ */
+ if (rate < 50000)
+ mclk_rate = rate * 64 * 4;
+ else
+ mclk_rate = rate * 64 * 2;
+
+ err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (err)
+ return err;
+
+ err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (err)
+ return err;
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate,
+ SND_SOC_CLOCK_IN);
+ if (err)
+ return err;
+
+ return snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate,
+ SND_SOC_CLOCK_OUT);
+}
+
+static struct snd_soc_ops edb93xx_ops = {
+ .hw_params = edb93xx_hw_params,
+};
+
+static struct snd_soc_dai_link edb93xx_dai = {
+ .name = "CS4271",
+ .stream_name = "CS4271 HiFi",
+ .platform_name = "ep93xx-pcm-audio",
+ .cpu_dai_name = "ep93xx-i2s",
+ .codec_name = "spi0.0",
+ .codec_dai_name = "cs4271-hifi",
+ .ops = &edb93xx_ops,
+};
+
+static struct snd_soc_card snd_soc_edb93xx = {
+ .name = "EDB93XX",
+ .dai_link = &edb93xx_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *edb93xx_snd_device;
+
+static int __init edb93xx_init(void)
+{
+ int ret;
+
+ if (!edb93xx_has_audio())
+ return -ENODEV;
+
+ ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97,
+ EP93XX_SYSCON_I2SCLKDIV_ORIDE |
+ EP93XX_SYSCON_I2SCLKDIV_SPOL);
+ if (ret)
+ return ret;
+
+ edb93xx_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!edb93xx_snd_device) {
+ ret = -ENOMEM;
+ goto free_i2s;
+ }
+
+ platform_set_drvdata(edb93xx_snd_device, &snd_soc_edb93xx);
+ ret = platform_device_add(edb93xx_snd_device);
+ if (ret)
+ goto device_put;
+
+ return 0;
+
+device_put:
+ platform_device_put(edb93xx_snd_device);
+free_i2s:
+ ep93xx_i2s_release();
+ return ret;
+}
+module_init(edb93xx_init);
+
+static void __exit edb93xx_exit(void)
+{
+ platform_device_unregister(edb93xx_snd_device);
+ ep93xx_i2s_release();
+}
+module_exit(edb93xx_exit);
+
+MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
+MODULE_DESCRIPTION("ALSA SoC EDB93xx");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/ep93xx/ep93xx-ac97.c b/sound/soc/ep93xx/ep93xx-ac97.c
index 68a0bae1208..104e95cda0a 100644
--- a/sound/soc/ep93xx/ep93xx-ac97.c
+++ b/sound/soc/ep93xx/ep93xx-ac97.c
@@ -253,7 +253,6 @@ static int ep93xx_ac97_trigger(struct snd_pcm_substream *substream,
struct ep93xx_ac97_info *info = snd_soc_dai_get_drvdata(dai);
unsigned v = 0;
-
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
diff --git a/sound/soc/ep93xx/ep93xx-i2s.c b/sound/soc/ep93xx/ep93xx-i2s.c
index fff579a1c13..042f4e93746 100644
--- a/sound/soc/ep93xx/ep93xx-i2s.c
+++ b/sound/soc/ep93xx/ep93xx-i2s.c
@@ -242,7 +242,7 @@ static int ep93xx_i2s_hw_params(struct snd_pcm_substream *substream,
{
struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
unsigned word_len, div, sdiv, lrdiv;
- int found = 0, err;
+ int err;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
@@ -275,15 +275,14 @@ static int ep93xx_i2s_hw_params(struct snd_pcm_substream *substream,
* the codec uses.
*/
div = clk_get_rate(info->mclk) / params_rate(params);
- for (sdiv = 2; sdiv <= 4; sdiv += 2)
- for (lrdiv = 64; lrdiv <= 128; lrdiv <<= 1)
- if (sdiv * lrdiv == div) {
- found = 1;
- goto out;
- }
-out:
- if (!found)
- return -EINVAL;
+ sdiv = 4;
+ if (div > (256 + 512) / 2) {
+ lrdiv = 128;
+ } else {
+ lrdiv = 64;
+ if (div < (128 + 256) / 2)
+ sdiv = 2;
+ }
err = clk_set_rate(info->sclk, clk_get_rate(info->mclk) / sdiv);
if (err)
@@ -314,10 +313,12 @@ static int ep93xx_i2s_suspend(struct snd_soc_dai *dai)
struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
if (!dai->active)
- return;
+ return 0;
ep93xx_i2s_disable(info, SNDRV_PCM_STREAM_PLAYBACK);
ep93xx_i2s_disable(info, SNDRV_PCM_STREAM_CAPTURE);
+
+ return 0;
}
static int ep93xx_i2s_resume(struct snd_soc_dai *dai)
@@ -325,10 +326,12 @@ static int ep93xx_i2s_resume(struct snd_soc_dai *dai)
struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
if (!dai->active)
- return;
+ return 0;
ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_PLAYBACK);
ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_CAPTURE);
+
+ return 0;
}
#else
#define ep93xx_i2s_suspend NULL
@@ -352,13 +355,13 @@ static struct snd_soc_dai_driver ep93xx_i2s_dai = {
.playback = {
.channels_min = 2,
.channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_96000,
+ .rates = SNDRV_PCM_RATE_8000_192000,
.formats = EP93XX_I2S_FORMATS,
},
.capture = {
.channels_min = 2,
.channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_96000,
+ .rates = SNDRV_PCM_RATE_8000_192000,
.formats = EP93XX_I2S_FORMATS,
},
.ops = &ep93xx_i2s_dai_ops,
diff --git a/sound/soc/ep93xx/ep93xx-pcm.c b/sound/soc/ep93xx/ep93xx-pcm.c
index 06670776f64..a456e491155 100644
--- a/sound/soc/ep93xx/ep93xx-pcm.c
+++ b/sound/soc/ep93xx/ep93xx-pcm.c
@@ -35,9 +35,9 @@ static const struct snd_pcm_hardware ep93xx_pcm_hardware = {
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER),
- .rates = SNDRV_PCM_RATE_8000_96000,
+ .rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = SNDRV_PCM_RATE_8000,
- .rate_max = SNDRV_PCM_RATE_96000,
+ .rate_max = SNDRV_PCM_RATE_192000,
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |