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-rw-r--r--sound/soc/codecs/cq93vc.c155
1 files changed, 155 insertions, 0 deletions
diff --git a/sound/soc/codecs/cq93vc.c b/sound/soc/codecs/cq93vc.c
new file mode 100644
index 000000000..14403b76c
--- /dev/null
+++ b/sound/soc/codecs/cq93vc.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc
+ *
+ * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/mfd/davinci_voicecodec.h>
+#include <linux/spi/spi.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+
+static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
+ SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
+ SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
+};
+
+static int cq93vc_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct snd_soc_component *component = dai->component;
+ u8 reg;
+
+ if (mute)
+ reg = DAVINCI_VC_REG09_MUTE;
+ else
+ reg = 0;
+
+ snd_soc_component_update_bits(component, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
+ reg);
+
+ return 0;
+}
+
+static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ switch (freq) {
+ case 22579200:
+ case 27000000:
+ case 33868800:
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int cq93vc_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ snd_soc_component_write(component, DAVINCI_VC_REG12,
+ DAVINCI_VC_REG12_POWER_ALL_ON);
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ snd_soc_component_write(component, DAVINCI_VC_REG12,
+ DAVINCI_VC_REG12_POWER_ALL_OFF);
+ break;
+ case SND_SOC_BIAS_OFF:
+ /* force all power off */
+ snd_soc_component_write(component, DAVINCI_VC_REG12,
+ DAVINCI_VC_REG12_POWER_ALL_OFF);
+ break;
+ }
+
+ return 0;
+}
+
+#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
+#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
+
+static const struct snd_soc_dai_ops cq93vc_dai_ops = {
+ .mute_stream = cq93vc_mute,
+ .set_sysclk = cq93vc_set_dai_sysclk,
+ .no_capture_mute = 1,
+};
+
+static struct snd_soc_dai_driver cq93vc_dai = {
+ .name = "cq93vc-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = CQ93VC_RATES,
+ .formats = CQ93VC_FORMATS,},
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = CQ93VC_RATES,
+ .formats = CQ93VC_FORMATS,},
+ .ops = &cq93vc_dai_ops,
+};
+
+static int cq93vc_probe(struct snd_soc_component *component)
+{
+ struct davinci_vc *davinci_vc = component->dev->platform_data;
+
+ snd_soc_component_init_regmap(component, davinci_vc->regmap);
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_cq93vc = {
+ .set_bias_level = cq93vc_set_bias_level,
+ .probe = cq93vc_probe,
+ .controls = cq93vc_snd_controls,
+ .num_controls = ARRAY_SIZE(cq93vc_snd_controls),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static int cq93vc_platform_probe(struct platform_device *pdev)
+{
+ return devm_snd_soc_register_component(&pdev->dev,
+ &soc_component_dev_cq93vc, &cq93vc_dai, 1);
+}
+
+static int cq93vc_platform_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver cq93vc_codec_driver = {
+ .driver = {
+ .name = "cq93vc-codec",
+ },
+
+ .probe = cq93vc_platform_probe,
+ .remove = cq93vc_platform_remove,
+};
+
+module_platform_driver(cq93vc_codec_driver);
+
+MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
+MODULE_AUTHOR("Miguel Aguilar");
+MODULE_LICENSE("GPL");