diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 02:36:56 -0400 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 02:36:56 -0400 |
commit | cf9b59e9d3e008591d1f54830f570982bb307a0d (patch) | |
tree | 113478ce8fd8c832ba726ffdf59b82cb46356476 /sound/usb/card.h | |
parent | 44504b2bebf8b5823c59484e73096a7d6574471d (diff) | |
parent | f4b87dee923342505e1ddba8d34ce9de33e75050 (diff) |
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.
Conflicts:
drivers/i2c/busses/i2c-cpm.c
drivers/i2c/busses/i2c-mpc.c
drivers/net/gianfar.c
Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'sound/usb/card.h')
-rw-r--r-- | sound/usb/card.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sound/usb/card.h b/sound/usb/card.h new file mode 100644 index 000000000000..ed92420c1095 --- /dev/null +++ b/sound/usb/card.h | |||
@@ -0,0 +1,105 @@ | |||
1 | #ifndef __USBAUDIO_CARD_H | ||
2 | #define __USBAUDIO_CARD_H | ||
3 | |||
4 | #define MAX_PACKS 20 | ||
5 | #define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */ | ||
6 | #define MAX_URBS 8 | ||
7 | #define SYNC_URBS 4 /* always four urbs for sync */ | ||
8 | #define MAX_QUEUE 24 /* try not to exceed this queue length, in ms */ | ||
9 | |||
10 | struct audioformat { | ||
11 | struct list_head list; | ||
12 | u64 formats; /* ALSA format bits */ | ||
13 | unsigned int channels; /* # channels */ | ||
14 | unsigned int fmt_type; /* USB audio format type (1-3) */ | ||
15 | unsigned int frame_size; /* samples per frame for non-audio */ | ||
16 | int iface; /* interface number */ | ||
17 | unsigned char altsetting; /* corresponding alternate setting */ | ||
18 | unsigned char altset_idx; /* array index of altenate setting */ | ||
19 | unsigned char attributes; /* corresponding attributes of cs endpoint */ | ||
20 | unsigned char endpoint; /* endpoint */ | ||
21 | unsigned char ep_attr; /* endpoint attributes */ | ||
22 | unsigned char datainterval; /* log_2 of data packet interval */ | ||
23 | unsigned int maxpacksize; /* max. packet size */ | ||
24 | unsigned int rates; /* rate bitmasks */ | ||
25 | unsigned int rate_min, rate_max; /* min/max rates */ | ||
26 | unsigned int nr_rates; /* number of rate table entries */ | ||
27 | unsigned int *rate_table; /* rate table */ | ||
28 | }; | ||
29 | |||
30 | struct snd_usb_substream; | ||
31 | |||
32 | struct snd_urb_ctx { | ||
33 | struct urb *urb; | ||
34 | unsigned int buffer_size; /* size of data buffer, if data URB */ | ||
35 | struct snd_usb_substream *subs; | ||
36 | int index; /* index for urb array */ | ||
37 | int packets; /* number of packets per urb */ | ||
38 | }; | ||
39 | |||
40 | struct snd_urb_ops { | ||
41 | int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | ||
42 | int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | ||
43 | int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | ||
44 | int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); | ||
45 | }; | ||
46 | |||
47 | struct snd_usb_substream { | ||
48 | struct snd_usb_stream *stream; | ||
49 | struct usb_device *dev; | ||
50 | struct snd_pcm_substream *pcm_substream; | ||
51 | int direction; /* playback or capture */ | ||
52 | int interface; /* current interface */ | ||
53 | int endpoint; /* assigned endpoint */ | ||
54 | struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ | ||
55 | unsigned int cur_rate; /* current rate (for hw_params callback) */ | ||
56 | unsigned int period_bytes; /* current period bytes (for hw_params callback) */ | ||
57 | unsigned int altset_idx; /* USB data format: index of alternate setting */ | ||
58 | unsigned int datapipe; /* the data i/o pipe */ | ||
59 | unsigned int syncpipe; /* 1 - async out or adaptive in */ | ||
60 | unsigned int datainterval; /* log_2 of data packet interval */ | ||
61 | unsigned int syncinterval; /* P for adaptive mode, 0 otherwise */ | ||
62 | unsigned int freqn; /* nominal sampling rate in fs/fps in Q16.16 format */ | ||
63 | unsigned int freqm; /* momentary sampling rate in fs/fps in Q16.16 format */ | ||
64 | unsigned int freqmax; /* maximum sampling rate, used for buffer management */ | ||
65 | unsigned int phase; /* phase accumulator */ | ||
66 | unsigned int maxpacksize; /* max packet size in bytes */ | ||
67 | unsigned int maxframesize; /* max packet size in frames */ | ||
68 | unsigned int curpacksize; /* current packet size in bytes (for capture) */ | ||
69 | unsigned int curframesize; /* current packet size in frames (for capture) */ | ||
70 | unsigned int fill_max: 1; /* fill max packet size always */ | ||
71 | unsigned int txfr_quirk:1; /* allow sub-frame alignment */ | ||
72 | unsigned int fmt_type; /* USB audio format type (1-3) */ | ||
73 | |||
74 | unsigned int running: 1; /* running status */ | ||
75 | |||
76 | unsigned int hwptr_done; /* processed byte position in the buffer */ | ||
77 | unsigned int transfer_done; /* processed frames since last period update */ | ||
78 | unsigned long active_mask; /* bitmask of active urbs */ | ||
79 | unsigned long unlink_mask; /* bitmask of unlinked urbs */ | ||
80 | |||
81 | unsigned int nurbs; /* # urbs */ | ||
82 | struct snd_urb_ctx dataurb[MAX_URBS]; /* data urb table */ | ||
83 | struct snd_urb_ctx syncurb[SYNC_URBS]; /* sync urb table */ | ||
84 | char *syncbuf; /* sync buffer for all sync URBs */ | ||
85 | dma_addr_t sync_dma; /* DMA address of syncbuf */ | ||
86 | |||
87 | u64 formats; /* format bitmasks (all or'ed) */ | ||
88 | unsigned int num_formats; /* number of supported audio formats (list) */ | ||
89 | struct list_head fmt_list; /* format list */ | ||
90 | struct snd_pcm_hw_constraint_list rate_list; /* limited rates */ | ||
91 | spinlock_t lock; | ||
92 | |||
93 | struct snd_urb_ops ops; /* callbacks (must be filled at init) */ | ||
94 | }; | ||
95 | |||
96 | struct snd_usb_stream { | ||
97 | struct snd_usb_audio *chip; | ||
98 | struct snd_pcm *pcm; | ||
99 | int pcm_index; | ||
100 | unsigned int fmt_type; /* USB audio format type (1-3) */ | ||
101 | struct snd_usb_substream substream[2]; | ||
102 | struct list_head list; | ||
103 | }; | ||
104 | |||
105 | #endif /* __USBAUDIO_CARD_H */ | ||