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