sound/soc/codecs/wcd-clsh-v2.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 #ifndef _WCD_CLSH_V2_H_
   4 #define _WCD_CLSH_V2_H_
   5 #include <sound/soc.h>
   6
   7 enum wcd_clsh_event {
   8         WCD_CLSH_EVENT_PRE_DAC = 1,
   9         WCD_CLSH_EVENT_POST_PA,
  10 };
  11
  12 /*
  13  * Basic states for Class H state machine.
  14  * represented as a bit mask within a u8 data type
  15  * bit 0: EAR mode
  16  * bit 1: HPH Left mode
  17  * bit 2: HPH Right mode
  18  * bit 3: Lineout mode
  19  */
  20 #define WCD_CLSH_STATE_IDLE     0
  21 #define WCD_CLSH_STATE_EAR      BIT(0)
  22 #define WCD_CLSH_STATE_HPHL     BIT(1)
  23 #define WCD_CLSH_STATE_HPHR     BIT(2)
  24 #define WCD_CLSH_STATE_LO       BIT(3)
  25 #define WCD_CLSH_STATE_MAX      4
  26 #define NUM_CLSH_STATES_V2      BIT(WCD_CLSH_STATE_MAX)
  27
  28 enum wcd_clsh_mode {
  29         CLS_H_NORMAL = 0, /* Class-H Default */
  30         CLS_H_HIFI, /* Class-H HiFi */
  31         CLS_H_LP, /* Class-H Low Power */
  32         CLS_AB, /* Class-AB */
  33         CLS_H_LOHIFI, /* LoHIFI */
  34         CLS_NONE, /* None of the above modes */
  35 };
  36
  37 struct wcd_clsh_ctrl;
  38
  39 extern struct wcd_clsh_ctrl *wcd_clsh_ctrl_alloc(
  40                                 struct snd_soc_component *component,
  41                                 int version);
  42 extern void wcd_clsh_ctrl_free(struct wcd_clsh_ctrl *ctrl);
  43 extern int wcd_clsh_ctrl_get_state(struct wcd_clsh_ctrl *ctrl);
  44 extern int wcd_clsh_ctrl_set_state(struct wcd_clsh_ctrl *ctrl,
  45                                    enum wcd_clsh_event event,
  46                                    int state,
  47                                    enum wcd_clsh_mode mode);
  48
  49 #endif /* _WCD_CLSH_V2_H_ */