1 /** 2 3 AudioScience HPI driver 4 Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com> 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of version 2 of the GNU General Public License as 8 published by the Free Software Foundation; 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 19 */ 20 21 struct hpi_adapter_obj; 22 23 /* a function that takes an adapter obj and returns an int */ 24 typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message); 25 26 #define HPI_IRQ_NONE (0) 27 #define HPI_IRQ_MESSAGE (1) 28 #define HPI_IRQ_MIXER (2) 29 30 struct hpi_adapter_obj { 31 struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */ 32 u16 type; /* 0x6644 == ASI6644 etc */ 33 u16 index; 34 35 struct hpios_spinlock dsp_lock; 36 37 u16 dsp_crashed; 38 u16 has_control_cache; 39 void *priv; 40 adapter_int_func *irq_query_and_clear; 41 struct hpi_hostbuffer_status *instream_host_buffer_status; 42 struct hpi_hostbuffer_status *outstream_host_buffer_status; 43 }; 44 45 struct hpi_control_cache { 46 /** indicates whether the structures are initialized */ 47 u16 init; 48 u16 adap_idx; 49 u32 control_count; 50 u32 cache_size_in_bytes; 51 /** pointer to allocated memory of lookup pointers. */ 52 struct hpi_control_cache_info **p_info; 53 /** pointer to DSP's control cache. */ 54 u8 *p_cache; 55 }; 56 57 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index); 58 59 u16 hpi_add_adapter(struct hpi_adapter_obj *pao); 60 61 void hpi_delete_adapter(struct hpi_adapter_obj *pao); 62 63 short hpi_check_control_cache(struct hpi_control_cache *pC, 64 struct hpi_message *phm, struct hpi_response *phr); 65 66 short hpi_check_control_cache_single(struct hpi_control_cache_single *pC, 67 struct hpi_message *phm, struct hpi_response *phr); 68 69 struct hpi_control_cache *hpi_alloc_control_cache(const u32 70 number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer); 71 72 void hpi_free_control_cache(struct hpi_control_cache *p_cache); 73 74 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC, 75 struct hpi_message *phm, struct hpi_response *phr); 76 77 void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single 78 *pC, struct hpi_message *phm, struct hpi_response *phr); 79 80 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr); 81 82 hpi_handler_func HPI_COMMON; 83