Annotation of sys/dev/isa/gusvar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: gusvar.h,v 1.5 2002/03/14 03:16:05 millert Exp $ */
2: /* $NetBSD: gus.c,v 1.51 1998/01/25 23:48:06 mycroft Exp $ */
3:
4: /*-
5: * Copyright (c) 1996 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Ken Hornstein and John Kohl.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: /*
41: *
42: * TODO:
43: * . figure out why mixer activity while sound is playing causes problems
44: * (phantom interrupts?)
45: * . figure out a better deinterleave strategy that avoids sucking up
46: * CPU, memory and cache bandwidth. (Maybe a special encoding?
47: * Maybe use the double-speed sampling/hardware deinterleave trick
48: * from the GUS SDK?) A 486/33 isn't quite fast enough to keep
49: * up with 44.1kHz 16-bit stereo output without some drop-outs.
50: * . use CS4231 for 16-bit sampling, for a-law and mu-law playback.
51: * . actually test full-duplex sampling(recording) and playback.
52: */
53:
54: /*
55: * Gravis UltraSound driver
56: *
57: * For more detailed information, see the GUS developers' kit
58: * available on the net at:
59: *
60: * ftp://freedom.nmsu.edu/pub/ultrasound/gravis/util/
61: * gusdkXXX.zip (developers' kit--get rev 2.22 or later)
62: * See ultrawrd.doc inside--it's MS Word (ick), but it's the bible
63: *
64: */
65:
66: /*
67: * The GUS Max has a slightly strange set of connections between the CS4231
68: * and the GF1 and the DMA interconnects. It's set up so that the CS4231 can
69: * be playing while the GF1 is loading patches from the system.
70: *
71: * Here's a recreation of the DMA interconnect diagram:
72: *
73: * GF1
74: * +---------+ digital
75: * | | record ASIC
76: * | |--------------+
77: * | | | +--------+
78: * | | play (dram) | +----+ | |
79: * | |--------------(------|-\ | | +-+ |
80: * +---------+ | | >-|----|---|C|--|------ dma chan 1
81: * | +---|-/ | | +-+ |
82: * | | +----+ | | |
83: * | | +----+ | | |
84: * +---------+ +-+ +--(---|-\ | | | |
85: * | | play |8| | | >-|----|----+---|------ dma chan 2
86: * | ---C----|--------|/|------(---|-/ | | |
87: * | ^ |record |1| | +----+ | |
88: * | | | /----|6|------+ +--------+
89: * | ---+----|--/ +-+
90: * +---------+
91: * CS4231 8-to-16 bit bus conversion, if needed
92: *
93: *
94: * "C" is an optional combiner.
95: *
96: */
97:
98: /*
99: * Software state of a single "voice" on the GUS
100: */
101: struct gus_voice {
102:
103: /*
104: * Various control bits
105: */
106:
107: unsigned char voccntl; /* State of voice control register */
108: unsigned char volcntl; /* State of volume control register */
109: unsigned char pan_pos; /* Position of volume panning (4 bits) */
110: int rate; /* Sample rate of voice being played back */
111:
112: /*
113: * Address of the voice data into the GUS's DRAM. 20 bits each
114: */
115:
116: u_long start_addr; /* Starting address of voice data loop area */
117: u_long end_addr; /* Ending address of voice data loop */
118: u_long current_addr; /* Beginning address of voice data
119: (start playing here) */
120:
121: /*
122: * linear volume values for the GUS's volume ramp. 0-511 (9 bits).
123: * These values must be translated into the logarithmic values using
124: * gus_log_volumes[]
125: */
126:
127: int start_volume; /* Starting position of volume ramp */
128: int current_volume; /* Current position of volume on volume ramp */
129: int end_volume; /* Ending position of volume on volume ramp */
130: };
131:
132: /*
133: * Software state of GUS
134: */
135: struct gus_softc {
136: struct device sc_dev; /* base device */
137: struct device *sc_isa; /* pointer to ISA parent */
138: void *sc_ih; /* interrupt vector */
139: struct timeout sc_dma_tmo;
140: bus_space_tag_t sc_iot; /* tag */
141: bus_space_handle_t sc_ioh1; /* handle */
142: bus_space_handle_t sc_ioh2; /* handle */
143: bus_space_handle_t sc_ioh3; /* ICS2101 handle */
144: bus_space_handle_t sc_ioh4; /* MIDI handle */
145:
146: int sc_iobase; /* I/O base address */
147: int sc_irq; /* IRQ used */
148: int sc_drq; /* DMA channel for play */
149: int sc_recdrq; /* DMA channel for recording */
150:
151: int sc_flags; /* Various flags about the GUS */
152: #define GUS_MIXER_INSTALLED 0x01 /* An ICS mixer is installed */
153: #define GUS_LOCKED 0x02 /* GUS is busy doing multi-phase DMA */
154: #define GUS_CODEC_INSTALLED 0x04 /* CS4231 installed/MAX */
155: #define GUS_PLAYING 0x08 /* GUS is playing a voice */
156: #define GUS_DMAOUT_ACTIVE 0x10 /* GUS is busy doing audio DMA */
157: #define GUS_DMAIN_ACTIVE 0x20 /* GUS is busy sampling */
158: #define GUS_OPEN 0x100 /* GUS is open */
159: int sc_dsize; /* Size of GUS DRAM */
160: int sc_voices; /* Number of active voices */
161: u_char sc_revision; /* Board revision of GUS */
162: u_char sc_mixcontrol; /* Value of GUS_MIX_CONTROL register */
163:
164: u_long sc_orate; /* Output sampling rate */
165: u_long sc_irate; /* Input sampling rate */
166:
167: int sc_encoding; /* Current data encoding type */
168: int sc_precision; /* # of bits of precision */
169: int sc_channels; /* Number of active channels */
170: int sc_blocksize; /* Current blocksize */
171: int sc_chanblocksize; /* Current blocksize for each in-use
172: channel */
173: short sc_nbufs; /* how many on-GUS bufs per-channel */
174: short sc_bufcnt; /* how many need to be played */
175: void *sc_deintr_buf; /* deinterleave buffer for stereo */
176:
177: int sc_ogain; /* Output gain control */
178: u_char sc_out_port; /* Current out port (generic only) */
179: u_char sc_in_port; /* keep track of it when no codec */
180:
181: void (*sc_dmaoutintr)(void *); /* DMA completion intr handler */
182: void *sc_outarg; /* argument for sc_dmaoutintr() */
183: u_char *sc_dmaoutaddr; /* for isadma_done */
184: u_long sc_gusaddr; /* where did we just put it? */
185: int sc_dmaoutcnt; /* for isadma_done */
186:
187: void (*sc_dmainintr)(void *); /* DMA completion intr handler */
188: void *sc_inarg; /* argument for sc_dmaoutintr() */
189: u_char *sc_dmainaddr; /* for isadma_done */
190: int sc_dmaincnt; /* for isadma_done */
191:
192: struct stereo_dma_intr {
193: void (*intr)(void *);
194: void *arg;
195: u_char *buffer;
196: u_long dmabuf;
197: int size;
198: int flags;
199: } sc_stereo;
200:
201: /*
202: * State information for linear audio layer
203: */
204:
205: int sc_dmabuf; /* Which ring buffer we're DMA'ing to */
206: int sc_playbuf; /* Which ring buffer we're playing */
207:
208: /*
209: * Voice information array. All voice-specific information is stored
210: * here
211: */
212:
213: struct gus_voice sc_voc[32]; /* Voice data for each voice */
214: union {
215: struct ics2101_softc sc_mixer_u;
216: struct ad1848_softc sc_codec_u;
217: } u;
218: #define sc_mixer u.sc_mixer_u
219: #define sc_codec u.sc_codec_u
220: };
221:
222: struct ics2101_volume {
223: u_char left;
224: u_char right;
225: };
226:
227: #define HAS_CODEC(sc) ((sc)->sc_flags & GUS_CODEC_INSTALLED)
228: #define HAS_MIXER(sc) ((sc)->sc_flags & GUS_MIXER_INSTALLED)
229:
230: /*
231: * Mixer devices for ICS2101
232: */
233: /* MIC IN mute, line in mute, line out mute are first since they can be done
234: even if no ICS mixer. */
235: #define GUSICS_MIC_IN_MUTE 0
236: #define GUSICS_LINE_IN_MUTE 1
237: #define GUSICS_MASTER_MUTE 2
238: #define GUSICS_CD_MUTE 3
239: #define GUSICS_DAC_MUTE 4
240: #define GUSICS_MIC_IN_LVL 5
241: #define GUSICS_LINE_IN_LVL 6
242: #define GUSICS_CD_LVL 7
243: #define GUSICS_DAC_LVL 8
244: #define GUSICS_MASTER_LVL 9
245:
246: #define GUSICS_RECORD_SOURCE 10
247:
248: /* Classes */
249: #define GUSICS_INPUT_CLASS 11
250: #define GUSICS_OUTPUT_CLASS 12
251: #define GUSICS_RECORD_CLASS 13
252:
253: /*
254: * Mixer & MUX devices for CS4231
255: */
256: #define GUSMAX_MONO_LVL 0 /* mic input to MUX;
257: also mono mixer input */
258: #define GUSMAX_DAC_LVL 1 /* input to MUX; also mixer input */
259: #define GUSMAX_LINE_IN_LVL 2 /* input to MUX; also mixer input */
260: #define GUSMAX_CD_LVL 3 /* mixer input only */
261: #define GUSMAX_MONITOR_LVL 4 /* digital mix (?) */
262: #define GUSMAX_OUT_LVL 5 /* output level. (?) */
263: #define GUSMAX_SPEAKER_LVL 6 /* pseudo-device for mute */
264: #define GUSMAX_LINE_IN_MUTE 7 /* pre-mixer */
265: #define GUSMAX_DAC_MUTE 8 /* pre-mixer */
266: #define GUSMAX_CD_MUTE 9 /* pre-mixer */
267: #define GUSMAX_MONO_MUTE 10 /* pre-mixer--microphone/mono */
268: #define GUSMAX_MONITOR_MUTE 11 /* post-mixer level/mute */
269: #define GUSMAX_SPEAKER_MUTE 12 /* speaker mute */
270:
271: #define GUSMAX_REC_LVL 13 /* post-MUX gain */
272:
273: #define GUSMAX_RECORD_SOURCE 14
274:
275: /* Classes */
276: #define GUSMAX_INPUT_CLASS 15
277: #define GUSMAX_RECORD_CLASS 16
278: #define GUSMAX_MONITOR_CLASS 17
279: #define GUSMAX_OUTPUT_CLASS 18
280:
281: #ifdef AUDIO_DEBUG
282: #define GUSPLAYDEBUG /*XXX*/
283: #define DPRINTF(x) if (gusdebug) printf x
284: #define DMAPRINTF(x) if (gusdmadebug) printf x
285: extern int gusdebug;
286: extern int gusdmadebug;
287: #else
288: #define DPRINTF(x)
289: #define DMAPRINTF(x)
290: #endif
291: extern int gus_dostereo;
292:
293: #define NDMARECS 2048
294: #ifdef GUSPLAYDEBUG
295: extern int gusstats;
296: struct dma_record {
297: struct timeval tv;
298: u_long gusaddr;
299: caddr_t bsdaddr;
300: u_short count;
301: u_char channel;
302: u_char direction;
303: };
304:
305: extern struct dma_record dmarecords[NDMARECS];
306:
307: extern int dmarecord_index;
308: #endif
309:
310: /*
311: * local routines
312: */
313:
314: int gusopen(void *, int);
315: void gusclose(void *);
316: void gusmax_close(void *);
317: int gusintr(void *);
318: int gus_set_in_gain(caddr_t, u_int, u_char);
319: int gus_get_in_gain(caddr_t);
320: int gus_set_out_gain(caddr_t, u_int, u_char);
321: int gus_get_out_gain(caddr_t);
322: int gus_set_params(void *, int, int, struct audio_params *, struct audio_params *);
323: int gusmax_set_params(void *, int, int, struct audio_params *, struct audio_params *);
324: int gus_round_blocksize(void *, int);
325: int gus_commit_settings(void *);
326: int gus_dma_output(void *, void *, int, void (*)(void *), void *);
327: int gus_dma_input(void *, void *, int, void (*)(void *), void *);
328: int gus_halt_out_dma(void *);
329: int gus_halt_in_dma(void *);
330: int gus_speaker_ctl(void *, int);
331: int gusmaxopen(void *, int);
332: int gusmax_round_blocksize(void *, int);
333: int gusmax_commit_settings(void *);
334: int gusmax_dma_output(void *, void *, int, void (*)(void *), void *);
335: int gusmax_dma_input(void *, void *, int, void (*)(void *), void *);
336: int gusmax_halt_out_dma(void *);
337: int gusmax_halt_in_dma(void *);
338: int gusmax_speaker_ctl(void *, int);
339: int gus_getdev(void *, struct audio_device *);
340:
341: void gus_deinterleave(struct gus_softc *, void *, int);
342:
343: int gus_mic_ctl(void *, int);
344: int gus_linein_ctl(void *, int);
345: int gus_test_iobase(bus_space_tag_t, int);
346: void guspoke(bus_space_tag_t, bus_space_handle_t, long, u_char);
347: void gusdmaout(struct gus_softc *, int, u_long, caddr_t, int);
348: int gus_init_cs4231(struct gus_softc *);
349: void gus_init_ics2101(struct gus_softc *);
350:
351: void gus_set_chan_addrs(struct gus_softc *);
352: void gusreset(struct gus_softc *, int);
353: void gus_set_voices(struct gus_softc *, int);
354: void gus_set_volume(struct gus_softc *, int, int);
355: void gus_set_samprate(struct gus_softc *, int, int);
356: void gus_set_recrate(struct gus_softc *, u_long);
357: void gus_start_voice(struct gus_softc *, int, int);
358: void gus_stop_voice(struct gus_softc *, int, int);
359: void gus_set_endaddr(struct gus_softc *, int, u_long);
360: #ifdef GUSPLAYDEBUG
361: void gus_set_curaddr(struct gus_softc *, int, u_long);
362: u_long gus_get_curaddr(struct gus_softc *, int);
363: #endif
364: int gus_dmaout_intr(struct gus_softc *);
365: void gus_dmaout_dointr(struct gus_softc *);
366: void gus_dmaout_timeout(void *);
367: int gus_dmain_intr(struct gus_softc *);
368: int gus_voice_intr(struct gus_softc *);
369: void gus_start_playing(struct gus_softc *, int);
370: int gus_continue_playing(struct gus_softc *, int);
371: u_char guspeek(bus_space_tag_t, bus_space_handle_t, u_long);
372: u_long convert_to_16bit(u_long);
373: int gus_mixer_set_port(void *, mixer_ctrl_t *);
374: int gus_mixer_get_port(void *, mixer_ctrl_t *);
375: int gusmax_mixer_set_port(void *, mixer_ctrl_t *);
376: int gusmax_mixer_get_port(void *, mixer_ctrl_t *);
377: int gus_mixer_query_devinfo(void *, mixer_devinfo_t *);
378: int gusmax_mixer_query_devinfo(void *, mixer_devinfo_t *);
379: int gus_query_encoding(void *, struct audio_encoding *);
380: int gus_get_props(void *);
381: int gusmax_get_props(void *);
382:
383: void gusics_master_mute(struct ics2101_softc *, int);
384: void gusics_dac_mute(struct ics2101_softc *, int);
385: void gusics_mic_mute(struct ics2101_softc *, int);
386: void gusics_linein_mute(struct ics2101_softc *, int);
387: void gusics_cd_mute(struct ics2101_softc *, int);
388:
389: void stereo_dmaintr(void *);
390:
391: extern const int gus_irq_map[];
392: extern const int gus_drq_map[];
393: extern const int gus_base_addrs[];
394: extern const int gus_addrs;
395: extern const int gus_max_frequency[];
396:
397: extern const ushort gus_log_volumes[];
398:
399: #define SELECT_GUS_REG(iot,ioh1,x) bus_space_write_1(iot,ioh1,GUS_REG_SELECT,x)
400: #define ADDR_HIGH(x) (unsigned int) ((x >> 7L) & 0x1fffL)
401: #define ADDR_LOW(x) (unsigned int) ((x & 0x7fL) << 9L)
402:
403: #define GUS_MIN_VOICES 14 /* Minimum possible number of voices */
404: #define GUS_MAX_VOICES 32 /* Maximum possible number of voices */
405: #define GUS_VOICE_LEFT 0 /* Voice used for left (and mono) playback */
406: #define GUS_VOICE_RIGHT 1 /* Voice used for right playback */
407: #define GUS_MEM_OFFSET 32 /* Offset into GUS memory to begin of buffer */
408: #define GUS_BUFFER_MULTIPLE 1024 /* Audio buffers are multiples of this */
409: #define GUS_MEM_FOR_BUFFERS 131072 /* use this many bytes on-GUS */
410: #define GUS_LEFT_RIGHT_OFFSET (sc->sc_nbufs * sc->sc_chanblocksize + GUS_MEM_OFFSET)
411:
412: #define GUS_PREC_BYTES (sc->sc_precision >> 3) /* precision to bytes */
413:
414: /* splgus() must be splaudio() */
415:
416: #define splgus splaudio
417:
418: extern struct audio_hw_if gus_hw_if;
419: extern struct audio_hw_if gusmax_hw_if;
420: extern struct audio_device gus_device;
421:
422: #define FLIP_REV 5 /* This rev has flipped mixer chans */
423:
424: void gus_subattach(struct gus_softc *, struct isa_attach_args *);
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