1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. 4 * 5 * @File ctsrc.h 6 * 7 * @Brief 8 * This file contains the definition of the Sample Rate Convertor 9 * resource management object. 10 * 11 * @Author Liu Chun 12 * @Date May 13 2008 13 */ 14 15 #ifndef CTSRC_H 16 #define CTSRC_H 17 18 #include "ctresource.h" 19 #include "ctimap.h" 20 #include <linux/spinlock.h> 21 #include <linux/list.h> 22 #include <sound/core.h> 23 24 #define SRC_STATE_OFF 0x0 25 #define SRC_STATE_INIT 0x4 26 #define SRC_STATE_RUN 0x5 27 28 #define SRC_SF_U8 0x0 29 #define SRC_SF_S16 0x1 30 #define SRC_SF_S24 0x2 31 #define SRC_SF_S32 0x3 32 #define SRC_SF_F32 0x4 33 34 /* Define the descriptor of a src resource */ 35 enum SRCMODE { 36 MEMRD, /* Read data from host memory */ 37 MEMWR, /* Write data to host memory */ 38 ARCRW, /* Read from and write to audio ring channel */ 39 NUM_SRCMODES 40 }; 41 42 struct src_rsc_ops; 43 44 struct src { 45 struct rsc rsc; /* Basic resource info */ 46 struct src *intlv; /* Pointer to next interleaved SRC in a series */ 47 const struct src_rsc_ops *ops; /* SRC specific operations */ 48 /* Number of contiguous srcs for interleaved usage */ 49 unsigned char multi; 50 unsigned char mode; /* Working mode of this SRC resource */ 51 }; 52 53 struct src_rsc_ops { 54 int (*set_state)(struct src *src, unsigned int state); 55 int (*set_bm)(struct src *src, unsigned int bm); 56 int (*set_sf)(struct src *src, unsigned int sf); 57 int (*set_pm)(struct src *src, unsigned int pm); 58 int (*set_rom)(struct src *src, unsigned int rom); 59 int (*set_vo)(struct src *src, unsigned int vo); 60 int (*set_st)(struct src *src, unsigned int st); 61 int (*set_bp)(struct src *src, unsigned int bp); 62 int (*set_cisz)(struct src *src, unsigned int cisz); 63 int (*set_ca)(struct src *src, unsigned int ca); 64 int (*set_sa)(struct src *src, unsigned int sa); 65 int (*set_la)(struct src *src, unsigned int la); 66 int (*set_pitch)(struct src *src, unsigned int pitch); 67 int (*set_clr_zbufs)(struct src *src); 68 int (*commit_write)(struct src *src); 69 int (*get_ca)(struct src *src); 70 int (*init)(struct src *src); 71 struct src* (*next_interleave)(struct src *src); 72 }; 73 74 /* Define src resource request description info */ 75 struct src_desc { 76 /* Number of contiguous master srcs for interleaved usage */ 77 unsigned char multi; 78 unsigned char msr; 79 unsigned char mode; /* Working mode of the requested srcs */ 80 }; 81 82 /* Define src manager object */ 83 struct src_mgr { 84 struct rsc_mgr mgr; /* Basic resource manager info */ 85 struct snd_card *card; /* pointer to this card */ 86 spinlock_t mgr_lock; 87 88 /* request src resource */ 89 int (*get_src)(struct src_mgr *mgr, 90 const struct src_desc *desc, struct src **rsrc); 91 /* return src resource */ 92 int (*put_src)(struct src_mgr *mgr, struct src *src); 93 int (*src_enable_s)(struct src_mgr *mgr, struct src *src); 94 int (*src_enable)(struct src_mgr *mgr, struct src *src); 95 int (*src_disable)(struct src_mgr *mgr, struct src *src); 96 int (*commit_write)(struct src_mgr *mgr); 97 }; 98 99 /* Define the descriptor of a SRC Input Mapper resource */ 100 struct srcimp_mgr; 101 struct srcimp_rsc_ops; 102 103 struct srcimp { 104 struct rsc rsc; 105 unsigned char idx[8]; 106 struct imapper *imappers; 107 unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */ 108 struct srcimp_mgr *mgr; 109 const struct srcimp_rsc_ops *ops; 110 }; 111 112 struct srcimp_rsc_ops { 113 int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input); 114 int (*unmap)(struct srcimp *srcimp); 115 }; 116 117 /* Define SRCIMP resource request description info */ 118 struct srcimp_desc { 119 unsigned int msr; 120 }; 121 122 struct srcimp_mgr { 123 struct rsc_mgr mgr; /* Basic resource manager info */ 124 struct snd_card *card; /* pointer to this card */ 125 spinlock_t mgr_lock; 126 spinlock_t imap_lock; 127 struct list_head imappers; 128 struct imapper *init_imap; 129 unsigned int init_imap_added; 130 131 /* request srcimp resource */ 132 int (*get_srcimp)(struct srcimp_mgr *mgr, 133 const struct srcimp_desc *desc, 134 struct srcimp **rsrcimp); 135 /* return srcimp resource */ 136 int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp); 137 int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry); 138 int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry); 139 }; 140 141 /* Constructor and destructor of SRC resource manager */ 142 int src_mgr_create(struct hw *hw, void **ptr); 143 int src_mgr_destroy(void *ptr); 144 /* Constructor and destructor of SRCIMP resource manager */ 145 int srcimp_mgr_create(struct hw *hw, void **ptr); 146 int srcimp_mgr_destroy(void *ptr); 147 148 #endif /* CTSRC_H */ 149