1 files changed, 131 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l43.h b/sound/soc/codecs/cs42l43.h
new file mode 100644
index 0000000000..bf4f728eea
--- /dev/null
+++ b/sound/soc/codecs/cs42l43.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * CS42L43 CODEC driver internal data
+ *
+ * Copyright (C) 2022-2023 Cirrus Logic, Inc. and
+ *                         Cirrus Logic International Semiconductor Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/types.h>
+#include <sound/cs42l43.h>
+#include <sound/pcm.h>
+#include <sound/soc-jack.h>
+
+#ifndef CS42L43_ASOC_INT_H
+#define CS42L43_ASOC_INT_H
+
+#define CS42L43_INTERNAL_SYSCLK		24576000
+#define CS42L43_DEFAULT_SLOTS		0x3F
+
+#define CS42L43_PLL_TIMEOUT_MS		200
+#define CS42L43_SPK_TIMEOUT_MS		100
+#define CS42L43_HP_TIMEOUT_MS		2000
+#define CS42L43_LOAD_TIMEOUT_MS		1000
+
+#define CS42L43_ASP_MAX_CHANNELS	6
+#define CS42L43_N_EQ_COEFFS		15
+
+#define CS42L43_N_BUTTONS	6
+
+struct cs42l43_codec {
+	struct device *dev;
+	struct cs42l43 *core;
+	struct snd_soc_component *component;
+
+	struct clk *mclk;
+
+	int n_slots;
+	int slot_width;
+	int tx_slots[CS42L43_ASP_MAX_CHANNELS];
+	int rx_slots[CS42L43_ASP_MAX_CHANNELS];
+	struct snd_pcm_hw_constraint_list constraint;
+
+	u32 eq_coeffs[CS42L43_N_EQ_COEFFS];
+
+	unsigned int refclk_src;
+	unsigned int refclk_freq;
+	struct completion pll_ready;
+
+	unsigned int decim_cache[4];
+	unsigned int adc_ena;
+	unsigned int hp_ena;
+
+	struct completion hp_startup;
+	struct completion hp_shutdown;
+	struct completion spkr_shutdown;
+	struct completion spkl_shutdown;
+	struct completion spkr_startup;
+	struct completion spkl_startup;
+	// Lock to ensure speaker VU updates don't clash
+	struct mutex spk_vu_lock;
+
+	// Lock for all jack detect operations
+	struct mutex jack_lock;
+	struct snd_soc_jack *jack_hp;
+
+	bool use_ring_sense;
+	unsigned int tip_debounce_ms;
+	unsigned int bias_low;
+	unsigned int bias_sense_ua;
+	unsigned int bias_ramp_ms;
+	unsigned int detect_us;
+	unsigned int buttons[CS42L43_N_BUTTONS];
+
+	struct delayed_work tip_sense_work;
+	struct delayed_work bias_sense_timeout;
+	struct delayed_work button_press_work;
+	struct work_struct button_release_work;
+	struct completion type_detect;
+	struct completion load_detect;
+
+	bool load_detect_running;
+	bool button_detect_running;
+	bool jack_present;
+	int jack_override;
+};
+
+#if IS_REACHABLE(CONFIG_SND_SOC_CS42L43_SDW)
+
+int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai);
+int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai);
+int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
+
+#else
+
+static inline int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
+					     struct snd_pcm_hw_params *params,
+					     struct snd_soc_dai *dai)
+{
+	return -EINVAL;
+}
+
+#define cs42l43_sdw_remove_peripheral NULL
+#define cs42l43_sdw_set_stream NULL
+
+#endif
+
+int cs42l43_set_jack(struct snd_soc_component *component,
+		     struct snd_soc_jack *jack, void *d);
+void cs42l43_bias_sense_timeout(struct work_struct *work);
+void cs42l43_tip_sense_work(struct work_struct *work);
+void cs42l43_button_press_work(struct work_struct *work);
+void cs42l43_button_release_work(struct work_struct *work);
+irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
+irqreturn_t cs42l43_button_press(int irq, void *data);
+irqreturn_t cs42l43_button_release(int irq, void *data);
+irqreturn_t cs42l43_tip_sense(int irq, void *data);
+int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
+
+extern const struct soc_enum cs42l43_jack_enum;
+
+#endif /* CS42L43_ASOC_INT_H */