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Diffstat (limited to '')
| -rw-r--r-- | sound/pci/ctxfi/ctsrc.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/sound/pci/ctxfi/ctsrc.h b/sound/pci/ctxfi/ctsrc.h new file mode 100644 index 000000000..92944a012 --- /dev/null +++ b/sound/pci/ctxfi/ctsrc.h @@ -0,0 +1,152 @@ +/** + * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. + * + * This source file is released under GPL v2 license (no other versions). + * See the COPYING file included in the main directory of this source + * distribution for the license terms and conditions. + * + * @File ctsrc.h + * + * @Brief + * This file contains the definition of the Sample Rate Convertor + * resource management object. + * + * @Author Liu Chun + * @Date May 13 2008 + * + */ + +#ifndef CTSRC_H +#define CTSRC_H + +#include "ctresource.h" +#include "ctimap.h" +#include <linux/spinlock.h> +#include <linux/list.h> +#include <sound/core.h> + +#define SRC_STATE_OFF 0x0 +#define SRC_STATE_INIT 0x4 +#define SRC_STATE_RUN 0x5 + +#define SRC_SF_U8 0x0 +#define SRC_SF_S16 0x1 +#define SRC_SF_S24 0x2 +#define SRC_SF_S32 0x3 +#define SRC_SF_F32 0x4 + +/* Define the descriptor of a src resource */ +enum SRCMODE { + MEMRD, /* Read data from host memory */ + MEMWR, /* Write data to host memory */ + ARCRW, /* Read from and write to audio ring channel */ + NUM_SRCMODES +}; + +struct src_rsc_ops; + +struct src { + struct rsc rsc; /* Basic resource info */ + struct src *intlv; /* Pointer to next interleaved SRC in a series */ + const struct src_rsc_ops *ops; /* SRC specific operations */ + /* Number of contiguous srcs for interleaved usage */ + unsigned char multi; + unsigned char mode; /* Working mode of this SRC resource */ +}; + +struct src_rsc_ops { + int (*set_state)(struct src *src, unsigned int state); + int (*set_bm)(struct src *src, unsigned int bm); + int (*set_sf)(struct src *src, unsigned int sf); + int (*set_pm)(struct src *src, unsigned int pm); + int (*set_rom)(struct src *src, unsigned int rom); + int (*set_vo)(struct src *src, unsigned int vo); + int (*set_st)(struct src *src, unsigned int st); + int (*set_bp)(struct src *src, unsigned int bp); + int (*set_cisz)(struct src *src, unsigned int cisz); + int (*set_ca)(struct src *src, unsigned int ca); + int (*set_sa)(struct src *src, unsigned int sa); + int (*set_la)(struct src *src, unsigned int la); + int (*set_pitch)(struct src *src, unsigned int pitch); + int (*set_clr_zbufs)(struct src *src); + int (*commit_write)(struct src *src); + int (*get_ca)(struct src *src); + int (*init)(struct src *src); + struct src* (*next_interleave)(struct src *src); +}; + +/* Define src resource request description info */ +struct src_desc { + /* Number of contiguous master srcs for interleaved usage */ + unsigned char multi; + unsigned char msr; + unsigned char mode; /* Working mode of the requested srcs */ +}; + +/* Define src manager object */ +struct src_mgr { + struct rsc_mgr mgr; /* Basic resource manager info */ + struct snd_card *card; /* pointer to this card */ + spinlock_t mgr_lock; + + /* request src resource */ + int (*get_src)(struct src_mgr *mgr, + const struct src_desc *desc, struct src **rsrc); + /* return src resource */ + int (*put_src)(struct src_mgr *mgr, struct src *src); + int (*src_enable_s)(struct src_mgr *mgr, struct src *src); + int (*src_enable)(struct src_mgr *mgr, struct src *src); + int (*src_disable)(struct src_mgr *mgr, struct src *src); + int (*commit_write)(struct src_mgr *mgr); +}; + +/* Define the descriptor of a SRC Input Mapper resource */ +struct srcimp_mgr; +struct srcimp_rsc_ops; + +struct srcimp { + struct rsc rsc; + unsigned char idx[8]; + struct imapper *imappers; + unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */ + struct srcimp_mgr *mgr; + const struct srcimp_rsc_ops *ops; +}; + +struct srcimp_rsc_ops { + int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input); + int (*unmap)(struct srcimp *srcimp); +}; + +/* Define SRCIMP resource request description info */ +struct srcimp_desc { + unsigned int msr; +}; + +struct srcimp_mgr { + struct rsc_mgr mgr; /* Basic resource manager info */ + struct snd_card *card; /* pointer to this card */ + spinlock_t mgr_lock; + spinlock_t imap_lock; + struct list_head imappers; + struct imapper *init_imap; + unsigned int init_imap_added; + + /* request srcimp resource */ + int (*get_srcimp)(struct srcimp_mgr *mgr, + const struct srcimp_desc *desc, + struct srcimp **rsrcimp); + /* return srcimp resource */ + int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp); + int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry); + int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry); +}; + +/* Constructor and destructor of SRC resource manager */ +int src_mgr_create(struct hw *hw, struct src_mgr **rsrc_mgr); +int src_mgr_destroy(struct src_mgr *src_mgr); +/* Constructor and destructor of SRCIMP resource manager */ +int srcimp_mgr_create(struct hw *hw, struct srcimp_mgr **rsrc_mgr); +int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr); + +#endif /* CTSRC_H */ |