1 /* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. 4 */ 5 6 #ifndef CRAS_DSP_INI_H_ 7 #define CRAS_DSP_INI_H_ 8 9 #ifdef __cplusplus 10 extern "C" { 11 #endif 12 13 #include "iniparser.h" 14 15 #include "array.h" 16 #include "cras_expr.h" 17 18 enum port_direction { 19 PORT_INPUT, 20 PORT_OUTPUT, 21 }; 22 23 enum port_type { 24 PORT_CONTROL, 25 PORT_AUDIO, 26 }; 27 28 #define INVALID_FLOW_ID -1 29 30 struct port { 31 enum port_direction direction; 32 enum port_type type; 33 34 /* This is only used if there is a flow connects to this port, 35 -1 otherwise (i.e. the port has a constant input/output) */ 36 int flow_id; 37 38 /* This is only used if type is PORT_CONTROL */ 39 float init_value; 40 }; 41 42 DECLARE_ARRAY_TYPE(struct port, port_array) 43 44 struct plugin { 45 const char *title; 46 const char *library; /* file name like "plugin.so" */ 47 const char *label; /* label like "Eq" */ 48 const char *purpose; /* like "playback" or "capture" */ 49 struct cras_expr_expression *disable_expr; /* the disable expression of 50 this plugin */ 51 port_array ports; 52 }; 53 54 struct flow { 55 enum port_type type; /* the type of the ports this flow connects to */ 56 const char *name; 57 struct plugin *from; 58 struct plugin *to; 59 int from_port; 60 int to_port; 61 }; 62 63 DECLARE_ARRAY_TYPE(struct plugin, plugin_array) 64 DECLARE_ARRAY_TYPE(struct flow, flow_array) 65 66 struct ini { 67 dictionary *dict; 68 plugin_array plugins; 69 flow_array flows; 70 }; 71 72 /* Reads the ini file into the ini structure */ 73 struct ini *cras_dsp_ini_create(const char *ini_filename); 74 /* Frees the dsp structure. */ 75 void cras_dsp_ini_free(struct ini *ini); 76 77 #ifdef __cplusplus 78 } /* extern "C" */ 79 #endif 80 81 #endif /* CRAS_DSP_INI_H_ */ 82
