/* * Linux driver for TerraTec DMX 6Fire USB * * Author: Torsten Schenk * Created: Jan 01, 2011 * Copyright: (C) Torsten Schenk * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #ifndef USB6FIRE_PCM_H #define USB6FIRE_PCM_H #include #include #include "common.h" enum /* settings for pcm */ { /* maximum of EP_W_MAX_PACKET_SIZE[] (see firmware.c) */ PCM_N_URBS = 16, PCM_N_PACKETS_PER_URB = 8, PCM_MAX_PACKET_SIZE = 604 }; struct pcm_urb { struct sfire_chip *chip; /* BEGIN DO NOT SEPARATE */ struct urb instance; struct usb_iso_packet_descriptor packets[PCM_N_PACKETS_PER_URB]; /* END DO NOT SEPARATE */ u8 *buffer; struct pcm_urb *peer; }; struct pcm_substream { spinlock_t lock; struct snd_pcm_substream *instance; bool active; snd_pcm_uframes_t dma_off; /* current position in alsa dma_area */ snd_pcm_uframes_t period_off; /* current position in current period */ }; struct pcm_runtime { struct sfire_chip *chip; struct snd_pcm *instance; struct pcm_substream playback; struct pcm_substream capture; bool panic; /* if set driver won't do anymore pcm on device */ struct pcm_urb in_urbs[PCM_N_URBS]; struct pcm_urb out_urbs[PCM_N_URBS]; int in_packet_size; int out_packet_size; int in_n_analog; /* number of analog channels soundcard sends */ int out_n_analog; /* number of analog channels soundcard receives */ struct mutex stream_mutex; u8 stream_state; /* one of STREAM_XXX (pcm.c) */ u8 rate; /* one of PCM_RATE_XXX */ wait_queue_head_t stream_wait_queue; bool stream_wait_cond; }; int usb6fire_pcm_init(struct sfire_chip *chip); void usb6fire_pcm_abort(struct sfire_chip *chip); void usb6fire_pcm_destroy(struct sfire_chip *chip); #endif /* USB6FIRE_PCM_H */ 9decf9137069646b593d3439171a8a8e2'>treecommitdiff
path: root/sound/drivers/pcm-indirect2.h
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authorDavid S. Miller <davem@davemloft.net>2017-01-30 22:05:52 -0500
committerDavid S. Miller <davem@davemloft.net>2017-01-30 22:05:52 -0500
commit1bae6c99decf9137069646b593d3439171a8a8e2 (patch)
tree431604a568cd2303973470de326bd9731370a025 /sound/drivers/pcm-indirect2.h
parent63c190429020a9701b42887ac22c28f287f1762f (diff)
parent2b2d3eb41c920b47df2fcedd1489cf748bd09466 (diff)
Merge branch 'sh_eth-E-DMAC-interrupt-mask-cleanups'
Sergei Shtylyov says: ==================== sh_eth: E-DMAC interrupt mask cleanups Here's a set of 3 patches against DaveM's 'net-next.git' repo. The main goal of this set is to stop using the bare numbers for the E-DMAC interrupt masks. [1/3] sh_eth: rename EESIPR bits [2/3] sh_eth: add missing EESIPR bits [3/3] sh_eth: stop using bare numbers for EESIPR values ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/drivers/pcm-indirect2.h')