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| author | Eliot Blennerhassett <eliot@blennerhassett.gen.nz> | 2014-11-20 16:22:53 +1300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-11-22 22:33:13 +0100 |
| commit | f9a376c3f6d77e59d41350901b2bafbaf8791df0 (patch) | |
| tree | b97b1b78966dba5ac3194558d779ca1840f10304 /sound/pci/asihpi/hpicmn.h | |
| parent | c1464a885444dd7e9c4491177ee102b64adc46c5 (diff) | |
| download | linux-stable-f9a376c3f6d77e59d41350901b2bafbaf8791df0.tar.gz linux-stable-f9a376c3f6d77e59d41350901b2bafbaf8791df0.tar.bz2 linux-stable-f9a376c3f6d77e59d41350901b2bafbaf8791df0.zip | |
ALSA: asihpi: Add support for stream interrupt.
Some cards have a so-called low-latency mode, in which they present
a single multichannel stream with no mixing or samplerate conversion.
In this mode the card can generate an interrupt per internal processing
block (typically 32 or 64 frames)
Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/asihpi/hpicmn.h')
| -rw-r--r-- | sound/pci/asihpi/hpicmn.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/sound/pci/asihpi/hpicmn.h b/sound/pci/asihpi/hpicmn.h index e44121283047..46629c2d101b 100644 --- a/sound/pci/asihpi/hpicmn.h +++ b/sound/pci/asihpi/hpicmn.h @@ -1,7 +1,7 @@ /** AudioScience HPI driver - Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com> + Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com> This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as @@ -21,7 +21,11 @@ struct hpi_adapter_obj; /* a function that takes an adapter obj and returns an int */ -typedef int adapter_int_func(struct hpi_adapter_obj *pao); +typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message); + +#define HPI_IRQ_NONE (0) +#define HPI_IRQ_MESSAGE (1) +#define HPI_IRQ_MIXER (2) struct hpi_adapter_obj { struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */ @@ -33,6 +37,9 @@ struct hpi_adapter_obj { u16 dsp_crashed; u16 has_control_cache; void *priv; + adapter_int_func *irq_query_and_clear; + struct hpi_hostbuffer_status *instream_host_buffer_status; + struct hpi_hostbuffer_status *outstream_host_buffer_status; }; struct hpi_control_cache { @@ -55,13 +62,21 @@ void hpi_delete_adapter(struct hpi_adapter_obj *pao); short hpi_check_control_cache(struct hpi_control_cache *pC, struct hpi_message *phm, struct hpi_response *phr); + +short hpi_check_control_cache_single(struct hpi_control_cache_single *pC, + struct hpi_message *phm, struct hpi_response *phr); + struct hpi_control_cache *hpi_alloc_control_cache(const u32 number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer); + void hpi_free_control_cache(struct hpi_control_cache *p_cache); void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC, struct hpi_message *phm, struct hpi_response *phr); +void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single + *pC, struct hpi_message *phm, struct hpi_response *phr); + u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr); hpi_handler_func HPI_COMMON; |