LXR linux/sound/soc/intel/skylake/skl-sst-ipc.h

   1/*
   2 * Intel SKL IPC Support
   3 *
   4 * Copyright (C) 2014-15, Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as version 2, as
   8 * published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful, but
  11 * WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 * General Public License for more details.
  14 */
  15
  16#ifndef __SKL_IPC_H
  17#define __SKL_IPC_H
  18
  19#include <linux/kthread.h>
  20#include <linux/irqreturn.h>
  21#include "../common/sst-ipc.h"
  22
  23struct sst_dsp;
  24struct skl_sst;
  25struct sst_generic_ipc;
  26
  27enum skl_ipc_pipeline_state {
  28        PPL_INVALID_STATE =     0,
  29        PPL_UNINITIALIZED =     1,
  30        PPL_RESET =             2,
  31        PPL_PAUSED =            3,
  32        PPL_RUNNING =           4,
  33        PPL_ERROR_STOP =        5,
  34        PPL_SAVED =             6,
  35        PPL_RESTORED =          7
  36};
  37
  38struct skl_ipc_dxstate_info {
  39        u32 core_mask;
  40        u32 dx_mask;
  41};
  42
  43struct skl_ipc_header {
  44        u32 primary;
  45        u32 extension;
  46};
  47
  48struct skl_sst {
  49        struct device *dev;
  50        struct sst_dsp *dsp;
  51
  52        /* boot */
  53        wait_queue_head_t boot_wait;
  54        bool boot_complete;
  55
  56        /* IPC messaging */
  57        struct sst_generic_ipc ipc;
  58
  59        /* callback for miscbdge */
  60        void (*enable_miscbdcge)(struct device *dev, bool enable);
  61        /*Is CGCTL.MISCBDCGE disabled*/
  62        bool miscbdcg_disabled;
  63};
  64
  65struct skl_ipc_init_instance_msg {
  66        u32 module_id;
  67        u32 instance_id;
  68        u16 param_data_size;
  69        u8 ppl_instance_id;
  70        u8 core_id;
  71};
  72
  73struct skl_ipc_bind_unbind_msg {
  74        u32 module_id;
  75        u32 instance_id;
  76        u32 dst_module_id;
  77        u32 dst_instance_id;
  78        u8 src_queue;
  79        u8 dst_queue;
  80        bool bind;
  81};
  82
  83struct skl_ipc_large_config_msg {
  84        u32 module_id;
  85        u32 instance_id;
  86        u32 large_param_id;
  87        u32 param_data_size;
  88};
  89
  90#define SKL_IPC_BOOT_MSECS              3000
  91
  92#define SKL_IPC_D3_MASK 0
  93#define SKL_IPC_D0_MASK 3
  94
  95irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context);
  96
  97int skl_ipc_create_pipeline(struct sst_generic_ipc *sst_ipc,
  98                u16 ppl_mem_size, u8 ppl_type, u8 instance_id);
  99
 100int skl_ipc_delete_pipeline(struct sst_generic_ipc *sst_ipc, u8 instance_id);
 101
 102int skl_ipc_set_pipeline_state(struct sst_generic_ipc *sst_ipc,
 103                u8 instance_id, enum skl_ipc_pipeline_state state);
 104
 105int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc,
 106                u8 instance_id, int dma_id);
 107
 108int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
 109
 110int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
 111                struct skl_ipc_init_instance_msg *msg, void *param_data);
 112
 113int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
 114                struct skl_ipc_bind_unbind_msg *msg);
 115
 116int skl_ipc_load_modules(struct sst_generic_ipc *ipc,
 117                                u8 module_cnt, void *data);
 118
 119int skl_ipc_unload_modules(struct sst_generic_ipc *ipc,
 120                                u8 module_cnt, void *data);
 121
 122int skl_ipc_set_dx(struct sst_generic_ipc *ipc,
 123                u8 instance_id, u16 module_id, struct skl_ipc_dxstate_info *dx);
 124
 125int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 126                struct skl_ipc_large_config_msg *msg, u32 *param);
 127
 128int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
 129                struct skl_ipc_large_config_msg *msg, u32 *param);
 130
 131void skl_ipc_int_enable(struct sst_dsp *dsp);
 132void skl_ipc_op_int_enable(struct sst_dsp *ctx);
 133void skl_ipc_op_int_disable(struct sst_dsp *ctx);
 134void skl_ipc_int_disable(struct sst_dsp *dsp);
 135
 136bool skl_ipc_int_status(struct sst_dsp *dsp);
 137void skl_ipc_free(struct sst_generic_ipc *ipc);
 138int skl_ipc_init(struct device *dev, struct skl_sst *skl);
 139
 140#endif /* __SKL_IPC_H */
 141