1 /* Copyright 2012-15 Advanced Micro Devices, Inc. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a 4 * copy of this software and associated documentation files (the "Software"), 5 * to deal in the Software without restriction, including without limitation 6 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 7 * and/or sell copies of the Software, and to permit persons to whom the 8 * Software is furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 16 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 17 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 18 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 19 * OTHER DEALINGS IN THE SOFTWARE. 20 * 21 * Authors: AMD 22 * 23 */ 24 25 #ifndef __DC_DMCU_H__ 26 #define __DC_DMCU_H__ 27 28 #include "dm_services_types.h" 29 30 /* If HW itself ever powered down it will be 0. 31 * fwDmcuInit will write to 1. 32 * Driver will only call MCP init if current state is 1, 33 * and the MCP command will transition this to 2. 34 */ 35 enum dmcu_state { 36 DMCU_UNLOADED = 0, 37 DMCU_LOADED_UNINITIALIZED = 1, 38 DMCU_RUNNING = 2, 39 }; 40 41 struct dmcu_version { 42 unsigned int interface_version; 43 unsigned int abm_version; 44 unsigned int psr_version; 45 unsigned int build_version; 46 }; 47 48 struct dmcu { 49 struct dc_context *ctx; 50 const struct dmcu_funcs *funcs; 51 52 enum dmcu_state dmcu_state; 53 struct dmcu_version dmcu_version; 54 unsigned int cached_wait_loop_number; 55 }; 56 57 struct dmcu_funcs { 58 bool (*dmcu_init)(struct dmcu *dmcu); 59 bool (*load_iram)(struct dmcu *dmcu, 60 unsigned int start_offset, 61 const char *src, 62 unsigned int bytes); 63 void (*set_psr_enable)(struct dmcu *dmcu, bool enable, bool wait); 64 bool (*setup_psr)(struct dmcu *dmcu, 65 struct dc_link *link, 66 struct psr_context *psr_context); 67 void (*get_psr_state)(struct dmcu *dmcu, uint32_t *psr_state); 68 void (*set_psr_wait_loop)(struct dmcu *dmcu, 69 unsigned int wait_loop_number); 70 void (*get_psr_wait_loop)(struct dmcu *dmcu, 71 unsigned int *psr_wait_loop_number); 72 bool (*is_dmcu_initialized)(struct dmcu *dmcu); 73 bool (*lock_phy)(struct dmcu *dmcu); 74 bool (*unlock_phy)(struct dmcu *dmcu); 75 }; 76 77 #endif 78
