/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _WCD_CLSH_V2_H_
#define _WCD_CLSH_V2_H_
#include <sound/soc.h>

enum wcd_clsh_event {
        WCD_CLSH_EVENT_PRE_DAC = 1,
        WCD_CLSH_EVENT_POST_PA,
};

/*
 * Basic states for Class H state machine.
 * represented as a bit mask within a u8 data type
 * bit 0: EAR mode
 * bit 1: HPH Left mode
 * bit 2: HPH Right mode
 * bit 3: Lineout mode
 */
#define WCD_CLSH_STATE_IDLE     0
#define WCD_CLSH_STATE_EAR      BIT(0)
#define WCD_CLSH_STATE_HPHL     BIT(1)
#define WCD_CLSH_STATE_HPHR     BIT(2)
#define WCD_CLSH_STATE_LO       BIT(3)
#define WCD_CLSH_STATE_AUX      BIT(4)
#define WCD_CLSH_STATE_MAX      4
#define WCD_CLSH_V3_STATE_MAX   5
#define NUM_CLSH_STATES_V2      BIT(WCD_CLSH_STATE_MAX)
#define NUM_CLSH_STATES_V3      BIT(WCD_CLSH_V3_STATE_MAX)

enum wcd_clsh_mode {
        CLS_H_NORMAL = 0, /* Class-H Default */
        CLS_H_HIFI, /* Class-H HiFi */
        CLS_H_LP, /* Class-H Low Power */
        CLS_AB, /* Class-AB */
        CLS_H_LOHIFI, /* LoHIFI */
        CLS_H_ULP, /* Ultra Low power */
        CLS_AB_HIFI, /* Class-AB */
        CLS_AB_LP, /* Class-AB Low Power */
        CLS_AB_LOHIFI, /* Class-AB Low HIFI */
        CLS_NONE, /* None of the above modes */
};

enum wcd_codec_version {
        WCD9335  = 0,
        WCD934X  = 1,
        /* New CLSH after this */
        WCD937X  = 2,
        WCD938X  = 3,
        WCD939X  = 4,
};
struct wcd_clsh_ctrl;

extern struct wcd_clsh_ctrl *wcd_clsh_ctrl_alloc(
                                struct snd_soc_component *comp,
                                int version);
extern void wcd_clsh_ctrl_free(struct wcd_clsh_ctrl *ctrl);
extern int wcd_clsh_ctrl_get_state(struct wcd_clsh_ctrl *ctrl);
extern int wcd_clsh_ctrl_set_state(struct wcd_clsh_ctrl *ctrl,
                                   enum wcd_clsh_event clsh_event,
                                   int nstate,
                                   enum wcd_clsh_mode mode);
extern void wcd_clsh_set_hph_mode(struct wcd_clsh_ctrl *ctrl,
                                  int mode);

#endif /* _WCD_CLSH_V2_H_ */