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TOMOYO Linux Cross Reference
Linux/sound/pci/asihpi/hpicmn.h

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  1 /* SPDX-License-Identifier: GPL-2.0-only */
  2 /*
  3 
  4     AudioScience HPI driver
  5     Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>
  6 
  7 
  8 */
  9 
 10 struct hpi_adapter_obj;
 11 
 12 /* a function that takes an adapter obj and returns an int */
 13 typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message);
 14 
 15 #define HPI_IRQ_NONE            (0)
 16 #define HPI_IRQ_MESSAGE         (1)
 17 #define HPI_IRQ_MIXER           (2)
 18 
 19 struct hpi_adapter_obj {
 20         struct hpi_pci pci;     /* PCI info - bus#,dev#,address etc */
 21         u16 type;               /* 0x6644 == ASI6644 etc */
 22         u16 index;
 23 
 24         struct hpios_spinlock dsp_lock;
 25 
 26         u16 dsp_crashed;
 27         u16 has_control_cache;
 28         void *priv;
 29         adapter_int_func *irq_query_and_clear;
 30         struct hpi_hostbuffer_status *instream_host_buffer_status;
 31         struct hpi_hostbuffer_status *outstream_host_buffer_status;
 32 };
 33 
 34 struct hpi_control_cache {
 35         /** indicates whether the structures are initialized */
 36         u16 init;
 37         u16 adap_idx;
 38         u32 control_count;
 39         u32 cache_size_in_bytes;
 40         /** pointer to allocated memory of lookup pointers. */
 41         struct hpi_control_cache_info **p_info;
 42         /** pointer to DSP's control cache. */
 43         u8 *p_cache;
 44 };
 45 
 46 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
 47 
 48 u16 hpi_add_adapter(struct hpi_adapter_obj *pao);
 49 
 50 void hpi_delete_adapter(struct hpi_adapter_obj *pao);
 51 
 52 short hpi_check_control_cache(struct hpi_control_cache *pC,
 53         struct hpi_message *phm, struct hpi_response *phr);
 54 
 55 short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
 56         struct hpi_message *phm, struct hpi_response *phr);
 57 
 58 struct hpi_control_cache *hpi_alloc_control_cache(const u32
 59         number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer);
 60 
 61 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
 62 
 63 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC,
 64         struct hpi_message *phm, struct hpi_response *phr);
 65 
 66 void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
 67         *pC, struct hpi_message *phm, struct hpi_response *phr);
 68 
 69 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
 70 
 71 hpi_handler_func HPI_COMMON;
 72 

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