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TOMOYO Linux Cross Reference
Linux/sound/soc/intel/skylake/skl-sst-ipc.h

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  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/irqreturn.h>
 20 #include "../common/sst-ipc.h"
 21 
 22 struct sst_dsp;
 23 struct skl_sst;
 24 struct sst_generic_ipc;
 25 
 26 enum skl_ipc_pipeline_state {
 27         PPL_INVALID_STATE =     0,
 28         PPL_UNINITIALIZED =     1,
 29         PPL_RESET =             2,
 30         PPL_PAUSED =            3,
 31         PPL_RUNNING =           4,
 32         PPL_ERROR_STOP =        5,
 33         PPL_SAVED =             6,
 34         PPL_RESTORED =          7
 35 };
 36 
 37 struct skl_ipc_dxstate_info {
 38         u32 core_mask;
 39         u32 dx_mask;
 40 };
 41 
 42 struct skl_ipc_header {
 43         u32 primary;
 44         u32 extension;
 45 };
 46 
 47 struct skl_dsp_cores {
 48         unsigned int count;
 49         enum skl_dsp_states *state;
 50         int *usage_count;
 51 };
 52 
 53 /**
 54  * skl_d0i3_data: skl D0i3 counters data struct
 55  *
 56  * @streaming: Count of usecases that can attempt streaming D0i3
 57  * @non_streaming: Count of usecases that can attempt non-streaming D0i3
 58  * @non_d0i3: Count of usecases that cannot attempt D0i3
 59  * @state: current state
 60  * @work: D0i3 worker thread
 61  */
 62 struct skl_d0i3_data {
 63         int streaming;
 64         int non_streaming;
 65         int non_d0i3;
 66         enum skl_dsp_d0i3_states state;
 67         struct delayed_work work;
 68 };
 69 
 70 #define SKL_LIB_NAME_LENGTH 128
 71 #define SKL_MAX_LIB 16
 72 
 73 struct skl_lib_info {
 74         char name[SKL_LIB_NAME_LENGTH];
 75         const struct firmware *fw;
 76 };
 77 
 78 struct skl_sst {
 79         struct device *dev;
 80         struct sst_dsp *dsp;
 81 
 82         /* boot */
 83         wait_queue_head_t boot_wait;
 84         bool boot_complete;
 85 
 86         /* module load */
 87         wait_queue_head_t mod_load_wait;
 88         bool mod_load_complete;
 89         bool mod_load_status;
 90 
 91         /* IPC messaging */
 92         struct sst_generic_ipc ipc;
 93 
 94         /* callback for miscbdge */
 95         void (*enable_miscbdcge)(struct device *dev, bool enable);
 96         /* Is CGCTL.MISCBDCGE disabled */
 97         bool miscbdcg_disabled;
 98 
 99         /* Populate module information */
100         struct list_head uuid_list;
101 
102         /* Is firmware loaded */
103         bool fw_loaded;
104 
105         /* first boot ? */
106         bool is_first_boot;
107 
108         /* multi-core */
109         struct skl_dsp_cores cores;
110 
111         /* library info */
112         struct skl_lib_info  lib_info[SKL_MAX_LIB];
113         int lib_count;
114 
115         /* Callback to update D0i3C register */
116         void (*update_d0i3c)(struct device *dev, bool enable);
117 
118         struct skl_d0i3_data d0i3;
119 
120         const struct skl_dsp_ops *dsp_ops;
121 
122         /* Callback to update dynamic clock and power gating registers */
123         void (*clock_power_gating)(struct device *dev, bool enable);
124 };
125 
126 struct skl_ipc_init_instance_msg {
127         u32 module_id;
128         u32 instance_id;
129         u16 param_data_size;
130         u8 ppl_instance_id;
131         u8 core_id;
132         u8 domain;
133 };
134 
135 struct skl_ipc_bind_unbind_msg {
136         u32 module_id;
137         u32 instance_id;
138         u32 dst_module_id;
139         u32 dst_instance_id;
140         u8 src_queue;
141         u8 dst_queue;
142         bool bind;
143 };
144 
145 struct skl_ipc_large_config_msg {
146         u32 module_id;
147         u32 instance_id;
148         u32 large_param_id;
149         u32 param_data_size;
150 };
151 
152 struct skl_ipc_d0ix_msg {
153         u32 module_id;
154         u32 instance_id;
155         u8 streaming;
156         u8 wake;
157 };
158 
159 #define SKL_IPC_BOOT_MSECS              3000
160 
161 #define SKL_IPC_D3_MASK 0
162 #define SKL_IPC_D0_MASK 3
163 
164 irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context);
165 
166 int skl_ipc_create_pipeline(struct sst_generic_ipc *sst_ipc,
167                 u16 ppl_mem_size, u8 ppl_type, u8 instance_id, u8 lp_mode);
168 
169 int skl_ipc_delete_pipeline(struct sst_generic_ipc *sst_ipc, u8 instance_id);
170 
171 int skl_ipc_set_pipeline_state(struct sst_generic_ipc *sst_ipc,
172                 u8 instance_id, enum skl_ipc_pipeline_state state);
173 
174 int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc,
175                 u8 instance_id, int dma_id);
176 
177 int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
178 
179 int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
180                 struct skl_ipc_init_instance_msg *msg, void *param_data);
181 
182 int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
183                 struct skl_ipc_bind_unbind_msg *msg);
184 
185 int skl_ipc_load_modules(struct sst_generic_ipc *ipc,
186                                 u8 module_cnt, void *data);
187 
188 int skl_ipc_unload_modules(struct sst_generic_ipc *ipc,
189                                 u8 module_cnt, void *data);
190 
191 int skl_ipc_set_dx(struct sst_generic_ipc *ipc,
192                 u8 instance_id, u16 module_id, struct skl_ipc_dxstate_info *dx);
193 
194 int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
195                 struct skl_ipc_large_config_msg *msg, u32 *param);
196 
197 int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
198                 struct skl_ipc_large_config_msg *msg, u32 *param);
199 
200 int skl_sst_ipc_load_library(struct sst_generic_ipc *ipc,
201                         u8 dma_id, u8 table_id, bool wait);
202 
203 int skl_ipc_set_d0ix(struct sst_generic_ipc *ipc,
204                 struct skl_ipc_d0ix_msg *msg);
205 
206 int skl_ipc_check_D0i0(struct sst_dsp *dsp, bool state);
207 
208 void skl_ipc_int_enable(struct sst_dsp *dsp);
209 void skl_ipc_op_int_enable(struct sst_dsp *ctx);
210 void skl_ipc_op_int_disable(struct sst_dsp *ctx);
211 void skl_ipc_int_disable(struct sst_dsp *dsp);
212 
213 bool skl_ipc_int_status(struct sst_dsp *dsp);
214 void skl_ipc_free(struct sst_generic_ipc *ipc);
215 int skl_ipc_init(struct device *dev, struct skl_sst *skl);
216 void skl_clear_module_cnt(struct sst_dsp *ctx);
217 
218 void skl_ipc_process_reply(struct sst_generic_ipc *ipc,
219                 struct skl_ipc_header header);
220 int skl_ipc_process_notification(struct sst_generic_ipc *ipc,
221                 struct skl_ipc_header header);
222 void skl_ipc_tx_data_copy(struct ipc_message *msg, char *tx_data,
223                 size_t tx_size);
224 #endif /* __SKL_IPC_H */
225 

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