aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ppc/8xx_io/cs4218.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/8xx_io/cs4218.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/ppc/8xx_io/cs4218.h')
-rw-r--r--arch/ppc/8xx_io/cs4218.h167
1 files changed, 167 insertions, 0 deletions
diff --git a/arch/ppc/8xx_io/cs4218.h b/arch/ppc/8xx_io/cs4218.h
new file mode 100644
index 000000000000..a3c38c5a5db2
--- /dev/null
+++ b/arch/ppc/8xx_io/cs4218.h
@@ -0,0 +1,167 @@
1#ifndef _cs4218_h_
2/*
3 * Hacked version of linux/drivers/sound/dmasound/dmasound.h
4 *
5 *
6 * Minor numbers for the sound driver.
7 *
8 * Unfortunately Creative called the codec chip of SB as a DSP. For this
9 * reason the /dev/dsp is reserved for digitized audio use. There is a
10 * device for true DSP processors but it will be called something else.
11 * In v3.0 it's /dev/sndproc but this could be a temporary solution.
12 */
13#define _cs4218_h_
14
15#include <linux/types.h>
16#include <linux/config.h>
17
18#define SND_NDEVS 256 /* Number of supported devices */
19#define SND_DEV_CTL 0 /* Control port /dev/mixer */
20#define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM
21 synthesizer and MIDI output) */
22#define SND_DEV_MIDIN 2 /* Raw midi access */
23#define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */
24#define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */
25#define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */
26#define SND_DEV_STATUS 6 /* /dev/sndstat */
27/* #7 not in use now. Was in 2.4. Free for use after v3.0. */
28#define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */
29#define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */
30#define SND_DEV_PSS SND_DEV_SNDPROC
31
32/* switch on various prinks */
33#define DEBUG_DMASOUND 1
34
35#define MAX_AUDIO_DEV 5
36#define MAX_MIXER_DEV 4
37#define MAX_SYNTH_DEV 3
38#define MAX_MIDI_DEV 6
39#define MAX_TIMER_DEV 3
40
41#define MAX_CATCH_RADIUS 10
42
43#define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
44#define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
45
46#define IOCTL_IN(arg, ret) \
47 do { int error = get_user(ret, (int *)(arg)); \
48 if (error) return error; \
49 } while (0)
50#define IOCTL_OUT(arg, ret) ioctl_return((int *)(arg), ret)
51
52static inline int ioctl_return(int *addr, int value)
53{
54 return value < 0 ? value : put_user(value, addr);
55}
56
57#define HAS_RECORD
58
59 /*
60 * Initialization
61 */
62
63/* description of the set-up applies to either hard or soft settings */
64
65typedef struct {
66 int format; /* AFMT_* */
67 int stereo; /* 0 = mono, 1 = stereo */
68 int size; /* 8/16 bit*/
69 int speed; /* speed */
70} SETTINGS;
71
72 /*
73 * Machine definitions
74 */
75
76typedef struct {
77 const char *name;
78 const char *name2;
79 void (*open)(void);
80 void (*release)(void);
81 void *(*dma_alloc)(unsigned int, int);
82 void (*dma_free)(void *, unsigned int);
83 int (*irqinit)(void);
84#ifdef MODULE
85 void (*irqcleanup)(void);
86#endif
87 void (*init)(void);
88 void (*silence)(void);
89 int (*setFormat)(int);
90 int (*setVolume)(int);
91 int (*setBass)(int);
92 int (*setTreble)(int);
93 int (*setGain)(int);
94 void (*play)(void);
95 void (*record)(void); /* optional */
96 void (*mixer_init)(void); /* optional */
97 int (*mixer_ioctl)(u_int, u_long); /* optional */
98 int (*write_sq_setup)(void); /* optional */
99 int (*read_sq_setup)(void); /* optional */
100 int (*sq_open)(mode_t); /* optional */
101 int (*state_info)(char *, size_t); /* optional */
102 void (*abort_read)(void); /* optional */
103 int min_dsp_speed;
104 int max_dsp_speed;
105 int version ;
106 int hardware_afmts ; /* OSS says we only return h'ware info */
107 /* when queried via SNDCTL_DSP_GETFMTS */
108 int capabilities ; /* low-level reply to SNDCTL_DSP_GETCAPS */
109 SETTINGS default_hard ; /* open() or init() should set something valid */
110 SETTINGS default_soft ; /* you can make it look like old OSS, if you want to */
111} MACHINE;
112
113 /*
114 * Low level stuff
115 */
116
117typedef struct {
118 ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
119 ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
120 ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
121 ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
122 ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
123 ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
124 ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
125 ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
126} TRANS;
127
128
129 /*
130 * Sound queue stuff, the heart of the driver
131 */
132
133struct sound_queue {
134 /* buffers allocated for this queue */
135 int numBufs; /* real limits on what the user can have */
136 int bufSize; /* in bytes */
137 char **buffers;
138
139 /* current parameters */
140 int locked ; /* params cannot be modified when != 0 */
141 int user_frags ; /* user requests this many */
142 int user_frag_size ; /* of this size */
143 int max_count; /* actual # fragments <= numBufs */
144 int block_size; /* internal block size in bytes */
145 int max_active; /* in-use fragments <= max_count */
146
147 /* it shouldn't be necessary to declare any of these volatile */
148 int front, rear, count;
149 int rear_size;
150 /*
151 * The use of the playing field depends on the hardware
152 *
153 * Atari, PMac: The number of frames that are loaded/playing
154 *
155 * Amiga: Bit 0 is set: a frame is loaded
156 * Bit 1 is set: a frame is playing
157 */
158 int active;
159 wait_queue_head_t action_queue, open_queue, sync_queue;
160 int open_mode;
161 int busy, syncing, xruns, died;
162};
163
164#define SLEEP(queue) interruptible_sleep_on_timeout(&queue, HZ)
165#define WAKE_UP(queue) (wake_up_interruptible(&queue))
166
167#endif /* _cs4218_h_ */