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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * "swarm_cs4297a.c" -- Cirrus Logic-Crystal CS4297a linux audio driver. | |
4 | * | |
5 | * Copyright (C) 2001 Broadcom Corporation. | |
6 | * Copyright (C) 2000,2001 Cirrus Logic Corp. | |
7 | * -- adapted from drivers by Thomas Sailer, | |
8 | * -- but don't bug him; Problems should go to: | |
9 | * -- tom woller (twoller@crystal.cirrus.com) or | |
10 | * (audio@crystal.cirrus.com). | |
11 | * -- adapted from cs4281 PCI driver for cs4297a on | |
12 | * BCM1250 Synchronous Serial interface | |
13 | * (Kip Walker, Broadcom Corp.) | |
14 | * Copyright (C) 2004 Maciej W. Rozycki | |
15 | * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
30 | * | |
31 | * Module command line parameters: | |
32 | * none | |
33 | * | |
34 | * Supported devices: | |
35 | * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible | |
36 | * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible | |
37 | * /dev/midi simple MIDI UART interface, no ioctl | |
38 | * | |
39 | * Modification History | |
40 | * 08/20/00 trw - silence and no stopping DAC until release | |
41 | * 08/23/00 trw - added CS_DBG statements, fix interrupt hang issue on DAC stop. | |
42 | * 09/18/00 trw - added 16bit only record with conversion | |
43 | * 09/24/00 trw - added Enhanced Full duplex (separate simultaneous | |
44 | * capture/playback rates) | |
45 | * 10/03/00 trw - fixed mmap (fixed GRECORD and the XMMS mmap test plugin | |
46 | * libOSSm.so) | |
47 | * 10/11/00 trw - modified for 2.4.0-test9 kernel enhancements (NR_MAP removal) | |
48 | * 11/03/00 trw - fixed interrupt loss/stutter, added debug. | |
49 | * 11/10/00 bkz - added __devinit to cs4297a_hw_init() | |
50 | * 11/10/00 trw - fixed SMP and capture spinlock hang. | |
51 | * 12/04/00 trw - cleaned up CSDEBUG flags and added "defaultorder" moduleparm. | |
52 | * 12/05/00 trw - fixed polling (myth2), and added underrun swptr fix. | |
53 | * 12/08/00 trw - added PM support. | |
54 | * 12/14/00 trw - added wrapper code, builds under 2.4.0, 2.2.17-20, 2.2.17-8 | |
55 | * (RH/Dell base), 2.2.18, 2.2.12. cleaned up code mods by ident. | |
56 | * 12/19/00 trw - added PM support for 2.2 base (apm_callback). other PM cleanup. | |
57 | * 12/21/00 trw - added fractional "defaultorder" inputs. if >100 then use | |
58 | * defaultorder-100 as power of 2 for the buffer size. example: | |
59 | * 106 = 2^(106-100) = 2^6 = 64 bytes for the buffer size. | |
60 | * | |
61 | *******************************************************************************/ | |
62 | ||
63 | #include <linux/list.h> | |
64 | #include <linux/module.h> | |
65 | #include <linux/string.h> | |
66 | #include <linux/ioport.h> | |
67 | #include <linux/sched.h> | |
68 | #include <linux/delay.h> | |
69 | #include <linux/sound.h> | |
70 | #include <linux/slab.h> | |
71 | #include <linux/soundcard.h> | |
72 | #include <linux/ac97_codec.h> | |
73 | #include <linux/pci.h> | |
74 | #include <linux/bitops.h> | |
75 | #include <linux/interrupt.h> | |
76 | #include <linux/init.h> | |
77 | #include <linux/poll.h> | |
910f5d20 | 78 | #include <linux/mutex.h> |
8b5925fd | 79 | #include <linux/kernel.h> |
1da177e4 LT |
80 | |
81 | #include <asm/byteorder.h> | |
82 | #include <asm/dma.h> | |
83 | #include <asm/io.h> | |
84 | #include <asm/uaccess.h> | |
85 | ||
86 | #include <asm/sibyte/sb1250_regs.h> | |
87 | #include <asm/sibyte/sb1250_int.h> | |
88 | #include <asm/sibyte/sb1250_dma.h> | |
89 | #include <asm/sibyte/sb1250_scd.h> | |
90 | #include <asm/sibyte/sb1250_syncser.h> | |
91 | #include <asm/sibyte/sb1250_mac.h> | |
92 | #include <asm/sibyte/sb1250.h> | |
93 | ||
94 | struct cs4297a_state; | |
95 | ||
645ef9ef | 96 | static DEFINE_MUTEX(swarm_cs4297a_mutex); |
1da177e4 LT |
97 | static void stop_dac(struct cs4297a_state *s); |
98 | static void stop_adc(struct cs4297a_state *s); | |
99 | static void start_dac(struct cs4297a_state *s); | |
100 | static void start_adc(struct cs4297a_state *s); | |
101 | #undef OSS_DOCUMENTED_MIXER_SEMANTICS | |
102 | ||
103 | // --------------------------------------------------------------------- | |
104 | ||
105 | #define CS4297a_MAGIC 0xf00beef1 | |
106 | ||
107 | // buffer order determines the size of the dma buffer for the driver. | |
108 | // under Linux, a smaller buffer allows more responsiveness from many of the | |
109 | // applications (e.g. games). A larger buffer allows some of the apps (esound) | |
110 | // to not underrun the dma buffer as easily. As default, use 32k (order=3) | |
111 | // rather than 64k as some of the games work more responsively. | |
112 | // log base 2( buff sz = 32k). | |
113 | ||
1da177e4 LT |
114 | // |
115 | // Turn on/off debugging compilation by commenting out "#define CSDEBUG" | |
116 | // | |
117 | #define CSDEBUG 0 | |
118 | #if CSDEBUG | |
119 | #define CSDEBUG_INTERFACE 1 | |
120 | #else | |
121 | #undef CSDEBUG_INTERFACE | |
122 | #endif | |
123 | // | |
124 | // cs_debugmask areas | |
125 | // | |
126 | #define CS_INIT 0x00000001 // initialization and probe functions | |
127 | #define CS_ERROR 0x00000002 // tmp debugging bit placeholder | |
128 | #define CS_INTERRUPT 0x00000004 // interrupt handler (separate from all other) | |
129 | #define CS_FUNCTION 0x00000008 // enter/leave functions | |
130 | #define CS_WAVE_WRITE 0x00000010 // write information for wave | |
131 | #define CS_WAVE_READ 0x00000020 // read information for wave | |
132 | #define CS_AC97 0x00000040 // AC97 register access | |
133 | #define CS_DESCR 0x00000080 // descriptor management | |
134 | #define CS_OPEN 0x00000400 // all open functions in the driver | |
135 | #define CS_RELEASE 0x00000800 // all release functions in the driver | |
136 | #define CS_PARMS 0x00001000 // functional and operational parameters | |
137 | #define CS_IOCTL 0x00002000 // ioctl (non-mixer) | |
138 | #define CS_TMP 0x10000000 // tmp debug mask bit | |
139 | ||
140 | // | |
141 | // CSDEBUG is usual mode is set to 1, then use the | |
142 | // cs_debuglevel and cs_debugmask to turn on or off debugging. | |
143 | // Debug level of 1 has been defined to be kernel errors and info | |
144 | // that should be printed on any released driver. | |
145 | // | |
146 | #if CSDEBUG | |
147 | #define CS_DBGOUT(mask,level,x) if((cs_debuglevel >= (level)) && ((mask) & cs_debugmask) ) {x;} | |
148 | #else | |
149 | #define CS_DBGOUT(mask,level,x) | |
150 | #endif | |
151 | ||
152 | #if CSDEBUG | |
153 | static unsigned long cs_debuglevel = 4; // levels range from 1-9 | |
154 | static unsigned long cs_debugmask = CS_INIT /*| CS_IOCTL*/; | |
8d3b33f6 RR |
155 | module_param(cs_debuglevel, int, 0); |
156 | module_param(cs_debugmask, int, 0); | |
1da177e4 LT |
157 | #endif |
158 | #define CS_TRUE 1 | |
159 | #define CS_FALSE 0 | |
160 | ||
161 | #define CS_TYPE_ADC 0 | |
162 | #define CS_TYPE_DAC 1 | |
163 | ||
164 | #define SER_BASE (A_SER_BASE_1 + KSEG1) | |
165 | #define SS_CSR(t) (SER_BASE+t) | |
166 | #define SS_TXTBL(t) (SER_BASE+R_SER_TX_TABLE_BASE+(t*8)) | |
167 | #define SS_RXTBL(t) (SER_BASE+R_SER_RX_TABLE_BASE+(t*8)) | |
168 | ||
169 | #define FRAME_BYTES 32 | |
170 | #define FRAME_SAMPLE_BYTES 4 | |
171 | ||
172 | /* Should this be variable? */ | |
173 | #define SAMPLE_BUF_SIZE (16*1024) | |
174 | #define SAMPLE_FRAME_COUNT (SAMPLE_BUF_SIZE / FRAME_SAMPLE_BYTES) | |
175 | /* The driver can explode/shrink the frames to/from a smaller sample | |
176 | buffer */ | |
177 | #define DMA_BLOAT_FACTOR 1 | |
178 | #define DMA_DESCR (SAMPLE_FRAME_COUNT / DMA_BLOAT_FACTOR) | |
179 | #define DMA_BUF_SIZE (DMA_DESCR * FRAME_BYTES) | |
180 | ||
181 | /* Use the maxmium count (255 == 5.1 ms between interrupts) */ | |
182 | #define DMA_INT_CNT ((1 << S_DMA_INT_PKTCNT) - 1) | |
183 | ||
184 | /* Figure this out: how many TX DMAs ahead to schedule a reg access */ | |
185 | #define REG_LATENCY 150 | |
186 | ||
187 | #define FRAME_TX_US 20 | |
188 | ||
189 | #define SERDMA_NEXTBUF(d,f) (((d)->f+1) % (d)->ringsz) | |
190 | ||
191 | static const char invalid_magic[] = | |
192 | KERN_CRIT "cs4297a: invalid magic value\n"; | |
193 | ||
194 | #define VALIDATE_STATE(s) \ | |
195 | ({ \ | |
196 | if (!(s) || (s)->magic != CS4297a_MAGIC) { \ | |
197 | printk(invalid_magic); \ | |
198 | return -ENXIO; \ | |
199 | } \ | |
200 | }) | |
201 | ||
202 | struct list_head cs4297a_devs = { &cs4297a_devs, &cs4297a_devs }; | |
203 | ||
204 | typedef struct serdma_descr_s { | |
205 | u64 descr_a; | |
206 | u64 descr_b; | |
207 | } serdma_descr_t; | |
208 | ||
209 | typedef unsigned long paddr_t; | |
210 | ||
211 | typedef struct serdma_s { | |
212 | unsigned ringsz; | |
213 | serdma_descr_t *descrtab; | |
214 | serdma_descr_t *descrtab_end; | |
215 | paddr_t descrtab_phys; | |
216 | ||
217 | serdma_descr_t *descr_add; | |
218 | serdma_descr_t *descr_rem; | |
219 | ||
220 | u64 *dma_buf; // buffer for DMA contents (frames) | |
221 | paddr_t dma_buf_phys; | |
222 | u16 *sample_buf; // tmp buffer for sample conversions | |
223 | u16 *sb_swptr; | |
224 | u16 *sb_hwptr; | |
225 | u16 *sb_end; | |
226 | ||
227 | dma_addr_t dmaaddr; | |
228 | // unsigned buforder; // Log base 2 of 'dma_buf' size in bytes.. | |
229 | unsigned numfrag; // # of 'fragments' in the buffer. | |
230 | unsigned fragshift; // Log base 2 of fragment size. | |
231 | unsigned hwptr, swptr; | |
232 | unsigned total_bytes; // # bytes process since open. | |
233 | unsigned blocks; // last returned blocks value GETOPTR | |
234 | unsigned wakeup; // interrupt occurred on block | |
235 | int count; | |
236 | unsigned underrun; // underrun flag | |
237 | unsigned error; // over/underrun | |
238 | wait_queue_head_t wait; | |
239 | wait_queue_head_t reg_wait; | |
240 | // redundant, but makes calculations easier | |
241 | unsigned fragsize; // 2**fragshift.. | |
242 | unsigned sbufsz; // 2**buforder. | |
243 | unsigned fragsamples; | |
244 | // OSS stuff | |
245 | unsigned mapped:1; // Buffer mapped in cs4297a_mmap()? | |
246 | unsigned ready:1; // prog_dmabuf_dac()/adc() successful? | |
247 | unsigned endcleared:1; | |
248 | unsigned type:1; // adc or dac buffer (CS_TYPE_XXX) | |
249 | unsigned ossfragshift; | |
250 | int ossmaxfrags; | |
251 | unsigned subdivision; | |
252 | } serdma_t; | |
253 | ||
254 | struct cs4297a_state { | |
255 | // magic | |
256 | unsigned int magic; | |
257 | ||
258 | struct list_head list; | |
259 | ||
260 | // soundcore stuff | |
261 | int dev_audio; | |
262 | int dev_mixer; | |
263 | ||
264 | // hardware resources | |
265 | unsigned int irq; | |
266 | ||
267 | struct { | |
268 | unsigned int rx_ovrrn; /* FIFO */ | |
269 | unsigned int rx_overflow; /* staging buffer */ | |
270 | unsigned int tx_underrun; | |
271 | unsigned int rx_bad; | |
272 | unsigned int rx_good; | |
273 | } stats; | |
274 | ||
275 | // mixer registers | |
276 | struct { | |
277 | unsigned short vol[10]; | |
278 | unsigned int recsrc; | |
279 | unsigned int modcnt; | |
280 | unsigned short micpreamp; | |
281 | } mix; | |
282 | ||
283 | // wave stuff | |
284 | struct properties { | |
285 | unsigned fmt; | |
286 | unsigned fmt_original; // original requested format | |
287 | unsigned channels; | |
288 | unsigned rate; | |
289 | } prop_dac, prop_adc; | |
290 | unsigned conversion:1; // conversion from 16 to 8 bit in progress | |
291 | unsigned ena; | |
292 | spinlock_t lock; | |
910f5d20 IM |
293 | struct mutex open_mutex; |
294 | struct mutex open_sem_adc; | |
295 | struct mutex open_sem_dac; | |
aeb5d727 | 296 | fmode_t open_mode; |
1da177e4 LT |
297 | wait_queue_head_t open_wait; |
298 | wait_queue_head_t open_wait_adc; | |
299 | wait_queue_head_t open_wait_dac; | |
300 | ||
301 | dma_addr_t dmaaddr_sample_buf; | |
302 | unsigned buforder_sample_buf; // Log base 2 of 'dma_buf' size in bytes.. | |
303 | ||
304 | serdma_t dma_dac, dma_adc; | |
305 | ||
306 | volatile u16 read_value; | |
307 | volatile u16 read_reg; | |
308 | volatile u64 reg_request; | |
309 | }; | |
310 | ||
311 | #if 1 | |
312 | #define prog_codec(a,b) | |
313 | #define dealloc_dmabuf(a,b); | |
314 | #endif | |
315 | ||
316 | static int prog_dmabuf_adc(struct cs4297a_state *s) | |
317 | { | |
318 | s->dma_adc.ready = 1; | |
319 | return 0; | |
320 | } | |
321 | ||
322 | ||
323 | static int prog_dmabuf_dac(struct cs4297a_state *s) | |
324 | { | |
325 | s->dma_dac.ready = 1; | |
326 | return 0; | |
327 | } | |
328 | ||
329 | static void clear_advance(void *buf, unsigned bsize, unsigned bptr, | |
330 | unsigned len, unsigned char c) | |
331 | { | |
332 | if (bptr + len > bsize) { | |
333 | unsigned x = bsize - bptr; | |
334 | memset(((char *) buf) + bptr, c, x); | |
335 | bptr = 0; | |
336 | len -= x; | |
337 | } | |
338 | CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO | |
339 | "cs4297a: clear_advance(): memset %d at 0x%.8x for %d size \n", | |
340 | (unsigned)c, (unsigned)((char *) buf) + bptr, len)); | |
341 | memset(((char *) buf) + bptr, c, len); | |
342 | } | |
343 | ||
344 | #if CSDEBUG | |
345 | ||
346 | // DEBUG ROUTINES | |
347 | ||
348 | #define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int) | |
349 | #define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int) | |
350 | #define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int) | |
351 | #define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int) | |
352 | ||
353 | static void cs_printioctl(unsigned int x) | |
354 | { | |
355 | unsigned int i; | |
356 | unsigned char vidx; | |
357 | // Index of mixtable1[] member is Device ID | |
358 | // and must be <= SOUND_MIXER_NRDEVICES. | |
359 | // Value of array member is index into s->mix.vol[] | |
360 | static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { | |
361 | [SOUND_MIXER_PCM] = 1, // voice | |
362 | [SOUND_MIXER_LINE1] = 2, // AUX | |
363 | [SOUND_MIXER_CD] = 3, // CD | |
364 | [SOUND_MIXER_LINE] = 4, // Line | |
365 | [SOUND_MIXER_SYNTH] = 5, // FM | |
366 | [SOUND_MIXER_MIC] = 6, // Mic | |
367 | [SOUND_MIXER_SPEAKER] = 7, // Speaker | |
368 | [SOUND_MIXER_RECLEV] = 8, // Recording level | |
369 | [SOUND_MIXER_VOLUME] = 9 // Master Volume | |
370 | }; | |
371 | ||
372 | switch (x) { | |
373 | case SOUND_MIXER_CS_GETDBGMASK: | |
374 | CS_DBGOUT(CS_IOCTL, 4, | |
375 | printk("SOUND_MIXER_CS_GETDBGMASK:\n")); | |
376 | break; | |
377 | case SOUND_MIXER_CS_GETDBGLEVEL: | |
378 | CS_DBGOUT(CS_IOCTL, 4, | |
379 | printk("SOUND_MIXER_CS_GETDBGLEVEL:\n")); | |
380 | break; | |
381 | case SOUND_MIXER_CS_SETDBGMASK: | |
382 | CS_DBGOUT(CS_IOCTL, 4, | |
383 | printk("SOUND_MIXER_CS_SETDBGMASK:\n")); | |
384 | break; | |
385 | case SOUND_MIXER_CS_SETDBGLEVEL: | |
386 | CS_DBGOUT(CS_IOCTL, 4, | |
387 | printk("SOUND_MIXER_CS_SETDBGLEVEL:\n")); | |
388 | break; | |
389 | case OSS_GETVERSION: | |
390 | CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION:\n")); | |
391 | break; | |
392 | case SNDCTL_DSP_SYNC: | |
393 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC:\n")); | |
394 | break; | |
395 | case SNDCTL_DSP_SETDUPLEX: | |
396 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX:\n")); | |
397 | break; | |
398 | case SNDCTL_DSP_GETCAPS: | |
399 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS:\n")); | |
400 | break; | |
401 | case SNDCTL_DSP_RESET: | |
402 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET:\n")); | |
403 | break; | |
404 | case SNDCTL_DSP_SPEED: | |
405 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED:\n")); | |
406 | break; | |
407 | case SNDCTL_DSP_STEREO: | |
408 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO:\n")); | |
409 | break; | |
410 | case SNDCTL_DSP_CHANNELS: | |
411 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS:\n")); | |
412 | break; | |
413 | case SNDCTL_DSP_GETFMTS: | |
414 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS:\n")); | |
415 | break; | |
416 | case SNDCTL_DSP_SETFMT: | |
417 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT:\n")); | |
418 | break; | |
419 | case SNDCTL_DSP_POST: | |
420 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST:\n")); | |
421 | break; | |
422 | case SNDCTL_DSP_GETTRIGGER: | |
423 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER:\n")); | |
424 | break; | |
425 | case SNDCTL_DSP_SETTRIGGER: | |
426 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER:\n")); | |
427 | break; | |
428 | case SNDCTL_DSP_GETOSPACE: | |
429 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE:\n")); | |
430 | break; | |
431 | case SNDCTL_DSP_GETISPACE: | |
432 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE:\n")); | |
433 | break; | |
434 | case SNDCTL_DSP_NONBLOCK: | |
435 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK:\n")); | |
436 | break; | |
437 | case SNDCTL_DSP_GETODELAY: | |
438 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY:\n")); | |
439 | break; | |
440 | case SNDCTL_DSP_GETIPTR: | |
441 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR:\n")); | |
442 | break; | |
443 | case SNDCTL_DSP_GETOPTR: | |
444 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR:\n")); | |
445 | break; | |
446 | case SNDCTL_DSP_GETBLKSIZE: | |
447 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE:\n")); | |
448 | break; | |
449 | case SNDCTL_DSP_SETFRAGMENT: | |
450 | CS_DBGOUT(CS_IOCTL, 4, | |
451 | printk("SNDCTL_DSP_SETFRAGMENT:\n")); | |
452 | break; | |
453 | case SNDCTL_DSP_SUBDIVIDE: | |
454 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE:\n")); | |
455 | break; | |
456 | case SOUND_PCM_READ_RATE: | |
457 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE:\n")); | |
458 | break; | |
459 | case SOUND_PCM_READ_CHANNELS: | |
460 | CS_DBGOUT(CS_IOCTL, 4, | |
461 | printk("SOUND_PCM_READ_CHANNELS:\n")); | |
462 | break; | |
463 | case SOUND_PCM_READ_BITS: | |
464 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS:\n")); | |
465 | break; | |
466 | case SOUND_PCM_WRITE_FILTER: | |
467 | CS_DBGOUT(CS_IOCTL, 4, | |
468 | printk("SOUND_PCM_WRITE_FILTER:\n")); | |
469 | break; | |
470 | case SNDCTL_DSP_SETSYNCRO: | |
471 | CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO:\n")); | |
472 | break; | |
473 | case SOUND_PCM_READ_FILTER: | |
474 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER:\n")); | |
475 | break; | |
476 | case SOUND_MIXER_PRIVATE1: | |
477 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1:\n")); | |
478 | break; | |
479 | case SOUND_MIXER_PRIVATE2: | |
480 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2:\n")); | |
481 | break; | |
482 | case SOUND_MIXER_PRIVATE3: | |
483 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3:\n")); | |
484 | break; | |
485 | case SOUND_MIXER_PRIVATE4: | |
486 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4:\n")); | |
487 | break; | |
488 | case SOUND_MIXER_PRIVATE5: | |
489 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5:\n")); | |
490 | break; | |
491 | case SOUND_MIXER_INFO: | |
492 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO:\n")); | |
493 | break; | |
494 | case SOUND_OLD_MIXER_INFO: | |
495 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO:\n")); | |
496 | break; | |
497 | ||
498 | default: | |
499 | switch (_IOC_NR(x)) { | |
500 | case SOUND_MIXER_VOLUME: | |
501 | CS_DBGOUT(CS_IOCTL, 4, | |
502 | printk("SOUND_MIXER_VOLUME:\n")); | |
503 | break; | |
504 | case SOUND_MIXER_SPEAKER: | |
505 | CS_DBGOUT(CS_IOCTL, 4, | |
506 | printk("SOUND_MIXER_SPEAKER:\n")); | |
507 | break; | |
508 | case SOUND_MIXER_RECLEV: | |
509 | CS_DBGOUT(CS_IOCTL, 4, | |
510 | printk("SOUND_MIXER_RECLEV:\n")); | |
511 | break; | |
512 | case SOUND_MIXER_MIC: | |
513 | CS_DBGOUT(CS_IOCTL, 4, | |
514 | printk("SOUND_MIXER_MIC:\n")); | |
515 | break; | |
516 | case SOUND_MIXER_SYNTH: | |
517 | CS_DBGOUT(CS_IOCTL, 4, | |
518 | printk("SOUND_MIXER_SYNTH:\n")); | |
519 | break; | |
520 | case SOUND_MIXER_RECSRC: | |
521 | CS_DBGOUT(CS_IOCTL, 4, | |
522 | printk("SOUND_MIXER_RECSRC:\n")); | |
523 | break; | |
524 | case SOUND_MIXER_DEVMASK: | |
525 | CS_DBGOUT(CS_IOCTL, 4, | |
526 | printk("SOUND_MIXER_DEVMASK:\n")); | |
527 | break; | |
528 | case SOUND_MIXER_RECMASK: | |
529 | CS_DBGOUT(CS_IOCTL, 4, | |
530 | printk("SOUND_MIXER_RECMASK:\n")); | |
531 | break; | |
532 | case SOUND_MIXER_STEREODEVS: | |
533 | CS_DBGOUT(CS_IOCTL, 4, | |
534 | printk("SOUND_MIXER_STEREODEVS:\n")); | |
535 | break; | |
536 | case SOUND_MIXER_CAPS: | |
537 | CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:\n")); | |
538 | break; | |
539 | default: | |
540 | i = _IOC_NR(x); | |
541 | if (i >= SOUND_MIXER_NRDEVICES | |
542 | || !(vidx = mixtable1[i])) { | |
543 | CS_DBGOUT(CS_IOCTL, 4, printk | |
544 | ("UNKNOWN IOCTL: 0x%.8x NR=%d\n", | |
545 | x, i)); | |
546 | } else { | |
547 | CS_DBGOUT(CS_IOCTL, 4, printk | |
548 | ("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d\n", | |
549 | x, i)); | |
550 | } | |
551 | break; | |
552 | } | |
553 | } | |
554 | } | |
555 | #endif | |
556 | ||
557 | ||
558 | static int ser_init(struct cs4297a_state *s) | |
559 | { | |
560 | int i; | |
561 | ||
562 | CS_DBGOUT(CS_INIT, 2, | |
563 | printk(KERN_INFO "cs4297a: Setting up serial parameters\n")); | |
564 | ||
565 | __raw_writeq(M_SYNCSER_CMD_RX_RESET | M_SYNCSER_CMD_TX_RESET, SS_CSR(R_SER_CMD)); | |
566 | ||
567 | __raw_writeq(M_SYNCSER_MSB_FIRST, SS_CSR(R_SER_MODE)); | |
568 | __raw_writeq(32, SS_CSR(R_SER_MINFRM_SZ)); | |
569 | __raw_writeq(32, SS_CSR(R_SER_MAXFRM_SZ)); | |
570 | ||
571 | __raw_writeq(1, SS_CSR(R_SER_TX_RD_THRSH)); | |
572 | __raw_writeq(4, SS_CSR(R_SER_TX_WR_THRSH)); | |
573 | __raw_writeq(8, SS_CSR(R_SER_RX_RD_THRSH)); | |
574 | ||
575 | /* This looks good from experimentation */ | |
576 | __raw_writeq((M_SYNCSER_TXSYNC_INT | V_SYNCSER_TXSYNC_DLY(0) | M_SYNCSER_TXCLK_EXT | | |
577 | M_SYNCSER_RXSYNC_INT | V_SYNCSER_RXSYNC_DLY(1) | M_SYNCSER_RXCLK_EXT | M_SYNCSER_RXSYNC_EDGE), | |
578 | SS_CSR(R_SER_LINE_MODE)); | |
579 | ||
580 | /* This looks good from experimentation */ | |
581 | __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, | |
582 | SS_TXTBL(0)); | |
583 | __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, | |
584 | SS_TXTBL(1)); | |
585 | __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, | |
586 | SS_TXTBL(2)); | |
587 | __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | | |
588 | M_SYNCSER_SEQ_STROBE | M_SYNCSER_SEQ_LAST, SS_TXTBL(3)); | |
589 | ||
590 | __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, | |
591 | SS_RXTBL(0)); | |
592 | __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, | |
593 | SS_RXTBL(1)); | |
594 | __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, | |
595 | SS_RXTBL(2)); | |
596 | __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE | | |
597 | M_SYNCSER_SEQ_LAST, SS_RXTBL(3)); | |
598 | ||
599 | for (i=4; i<16; i++) { | |
600 | /* Just in case... */ | |
601 | __raw_writeq(M_SYNCSER_SEQ_LAST, SS_TXTBL(i)); | |
602 | __raw_writeq(M_SYNCSER_SEQ_LAST, SS_RXTBL(i)); | |
603 | } | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
608 | static int init_serdma(serdma_t *dma) | |
609 | { | |
610 | CS_DBGOUT(CS_INIT, 2, | |
611 | printk(KERN_ERR "cs4297a: desc - %d sbufsize - %d dbufsize - %d\n", | |
612 | DMA_DESCR, SAMPLE_BUF_SIZE, DMA_BUF_SIZE)); | |
613 | ||
614 | /* Descriptors */ | |
615 | dma->ringsz = DMA_DESCR; | |
3159f06d | 616 | dma->descrtab = kzalloc(dma->ringsz * sizeof(serdma_descr_t), GFP_KERNEL); |
1da177e4 | 617 | if (!dma->descrtab) { |
3159f06d | 618 | printk(KERN_ERR "cs4297a: kzalloc descrtab failed\n"); |
1da177e4 LT |
619 | return -1; |
620 | } | |
1da177e4 LT |
621 | dma->descrtab_end = dma->descrtab + dma->ringsz; |
622 | /* XXX bloddy mess, use proper DMA API here ... */ | |
623 | dma->descrtab_phys = CPHYSADDR((long)dma->descrtab); | |
624 | dma->descr_add = dma->descr_rem = dma->descrtab; | |
625 | ||
626 | /* Frame buffer area */ | |
3159f06d | 627 | dma->dma_buf = kzalloc(DMA_BUF_SIZE, GFP_KERNEL); |
1da177e4 | 628 | if (!dma->dma_buf) { |
3159f06d | 629 | printk(KERN_ERR "cs4297a: kzalloc dma_buf failed\n"); |
1da177e4 LT |
630 | kfree(dma->descrtab); |
631 | return -1; | |
632 | } | |
1da177e4 LT |
633 | dma->dma_buf_phys = CPHYSADDR((long)dma->dma_buf); |
634 | ||
635 | /* Samples buffer area */ | |
636 | dma->sbufsz = SAMPLE_BUF_SIZE; | |
637 | dma->sample_buf = kmalloc(dma->sbufsz, GFP_KERNEL); | |
638 | if (!dma->sample_buf) { | |
639 | printk(KERN_ERR "cs4297a: kmalloc sample_buf failed\n"); | |
640 | kfree(dma->descrtab); | |
641 | kfree(dma->dma_buf); | |
642 | return -1; | |
643 | } | |
644 | dma->sb_swptr = dma->sb_hwptr = dma->sample_buf; | |
645 | dma->sb_end = (u16 *)((void *)dma->sample_buf + dma->sbufsz); | |
646 | dma->fragsize = dma->sbufsz >> 1; | |
647 | ||
648 | CS_DBGOUT(CS_INIT, 4, | |
649 | printk(KERN_ERR "cs4297a: descrtab - %08x dma_buf - %x sample_buf - %x\n", | |
650 | (int)dma->descrtab, (int)dma->dma_buf, | |
651 | (int)dma->sample_buf)); | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | static int dma_init(struct cs4297a_state *s) | |
657 | { | |
658 | int i; | |
659 | ||
660 | CS_DBGOUT(CS_INIT, 2, | |
661 | printk(KERN_INFO "cs4297a: Setting up DMA\n")); | |
662 | ||
663 | if (init_serdma(&s->dma_adc) || | |
664 | init_serdma(&s->dma_dac)) | |
665 | return -1; | |
666 | ||
667 | if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))|| | |
668 | __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) { | |
669 | panic("DMA state corrupted?!"); | |
670 | } | |
671 | ||
672 | /* Initialize now - the descr/buffer pairings will never | |
673 | change... */ | |
674 | for (i=0; i<DMA_DESCR; i++) { | |
675 | s->dma_dac.descrtab[i].descr_a = M_DMA_SERRX_SOP | V_DMA_DSCRA_A_SIZE(1) | | |
676 | (s->dma_dac.dma_buf_phys + i*FRAME_BYTES); | |
677 | s->dma_dac.descrtab[i].descr_b = V_DMA_DSCRB_PKT_SIZE(FRAME_BYTES); | |
678 | s->dma_adc.descrtab[i].descr_a = V_DMA_DSCRA_A_SIZE(1) | | |
679 | (s->dma_adc.dma_buf_phys + i*FRAME_BYTES); | |
680 | s->dma_adc.descrtab[i].descr_b = 0; | |
681 | } | |
682 | ||
683 | __raw_writeq((M_DMA_EOP_INT_EN | V_DMA_INT_PKTCNT(DMA_INT_CNT) | | |
684 | V_DMA_RINGSZ(DMA_DESCR) | M_DMA_TDX_EN), | |
685 | SS_CSR(R_SER_DMA_CONFIG0_RX)); | |
686 | __raw_writeq(M_DMA_L2CA, SS_CSR(R_SER_DMA_CONFIG1_RX)); | |
687 | __raw_writeq(s->dma_adc.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_RX)); | |
688 | ||
689 | __raw_writeq(V_DMA_RINGSZ(DMA_DESCR), SS_CSR(R_SER_DMA_CONFIG0_TX)); | |
690 | __raw_writeq(M_DMA_L2CA | M_DMA_NO_DSCR_UPDT, SS_CSR(R_SER_DMA_CONFIG1_TX)); | |
691 | __raw_writeq(s->dma_dac.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_TX)); | |
692 | ||
693 | /* Prep the receive DMA descriptor ring */ | |
694 | __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); | |
695 | ||
696 | __raw_writeq(M_SYNCSER_DMA_RX_EN | M_SYNCSER_DMA_TX_EN, SS_CSR(R_SER_DMA_ENABLE)); | |
697 | ||
698 | __raw_writeq((M_SYNCSER_RX_SYNC_ERR | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_EOP_COUNT), | |
699 | SS_CSR(R_SER_INT_MASK)); | |
700 | ||
701 | /* Enable the rx/tx; let the codec warm up to the sync and | |
702 | start sending good frames before the receive FIFO is | |
703 | enabled */ | |
704 | __raw_writeq(M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); | |
705 | udelay(1000); | |
706 | __raw_writeq(M_SYNCSER_CMD_RX_EN | M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); | |
707 | ||
708 | /* XXXKW is this magic? (the "1" part) */ | |
709 | while ((__raw_readq(SS_CSR(R_SER_STATUS)) & 0xf1) != 1) | |
710 | ; | |
711 | ||
712 | CS_DBGOUT(CS_INIT, 4, | |
713 | printk(KERN_INFO "cs4297a: status: %08x\n", | |
714 | (unsigned int)(__raw_readq(SS_CSR(R_SER_STATUS)) & 0xffffffff))); | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
719 | static int serdma_reg_access(struct cs4297a_state *s, u64 data) | |
720 | { | |
721 | serdma_t *d = &s->dma_dac; | |
722 | u64 *data_p; | |
723 | unsigned swptr; | |
c53421b1 | 724 | unsigned long flags; |
1da177e4 LT |
725 | serdma_descr_t *descr; |
726 | ||
727 | if (s->reg_request) { | |
728 | printk(KERN_ERR "cs4297a: attempt to issue multiple reg_access\n"); | |
729 | return -1; | |
730 | } | |
731 | ||
732 | if (s->ena & FMODE_WRITE) { | |
733 | /* Since a writer has the DSP open, we have to mux the | |
734 | request in */ | |
735 | s->reg_request = data; | |
736 | interruptible_sleep_on(&s->dma_dac.reg_wait); | |
737 | /* XXXKW how can I deal with the starvation case where | |
738 | the opener isn't writing? */ | |
739 | } else { | |
740 | /* Be safe when changing ring pointers */ | |
741 | spin_lock_irqsave(&s->lock, flags); | |
742 | if (d->hwptr != d->swptr) { | |
743 | printk(KERN_ERR "cs4297a: reg access found bookkeeping error (hw/sw = %d/%d\n", | |
744 | d->hwptr, d->swptr); | |
745 | spin_unlock_irqrestore(&s->lock, flags); | |
746 | return -1; | |
747 | } | |
748 | swptr = d->swptr; | |
749 | d->hwptr = d->swptr = (d->swptr + 1) % d->ringsz; | |
750 | spin_unlock_irqrestore(&s->lock, flags); | |
751 | ||
752 | descr = &d->descrtab[swptr]; | |
753 | data_p = &d->dma_buf[swptr * 4]; | |
754 | *data_p = cpu_to_be64(data); | |
755 | __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); | |
756 | CS_DBGOUT(CS_DESCR, 4, | |
757 | printk(KERN_INFO "cs4297a: add_tx %p (%x -> %x)\n", | |
758 | data_p, swptr, d->hwptr)); | |
759 | } | |
760 | ||
761 | CS_DBGOUT(CS_FUNCTION, 6, | |
762 | printk(KERN_INFO "cs4297a: serdma_reg_access()-\n")); | |
763 | ||
764 | return 0; | |
765 | } | |
766 | ||
767 | //**************************************************************************** | |
768 | // "cs4297a_read_ac97" -- Reads an AC97 register | |
769 | //**************************************************************************** | |
770 | static int cs4297a_read_ac97(struct cs4297a_state *s, u32 offset, | |
771 | u32 * value) | |
772 | { | |
773 | CS_DBGOUT(CS_AC97, 1, | |
774 | printk(KERN_INFO "cs4297a: read reg %2x\n", offset)); | |
775 | if (serdma_reg_access(s, (0xCLL << 60) | (1LL << 47) | ((u64)(offset & 0x7F) << 40))) | |
776 | return -1; | |
777 | ||
778 | interruptible_sleep_on(&s->dma_adc.reg_wait); | |
779 | *value = s->read_value; | |
780 | CS_DBGOUT(CS_AC97, 2, | |
781 | printk(KERN_INFO "cs4297a: rdr reg %x -> %x\n", s->read_reg, s->read_value)); | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | ||
787 | //**************************************************************************** | |
788 | // "cs4297a_write_ac97()"-- writes an AC97 register | |
789 | //**************************************************************************** | |
790 | static int cs4297a_write_ac97(struct cs4297a_state *s, u32 offset, | |
791 | u32 value) | |
792 | { | |
793 | CS_DBGOUT(CS_AC97, 1, | |
794 | printk(KERN_INFO "cs4297a: write reg %2x -> %04x\n", offset, value)); | |
795 | return (serdma_reg_access(s, (0xELL << 60) | ((u64)(offset & 0x7F) << 40) | ((value & 0xffff) << 12))); | |
796 | } | |
797 | ||
798 | static void stop_dac(struct cs4297a_state *s) | |
799 | { | |
800 | unsigned long flags; | |
801 | ||
802 | CS_DBGOUT(CS_WAVE_WRITE, 3, printk(KERN_INFO "cs4297a: stop_dac():\n")); | |
803 | spin_lock_irqsave(&s->lock, flags); | |
804 | s->ena &= ~FMODE_WRITE; | |
805 | #if 0 | |
806 | /* XXXKW what do I really want here? My theory for now is | |
807 | that I just flip the "ena" bit, and the interrupt handler | |
808 | will stop processing the xmit channel */ | |
809 | __raw_writeq((s->ena & FMODE_READ) ? M_SYNCSER_DMA_RX_EN : 0, | |
810 | SS_CSR(R_SER_DMA_ENABLE)); | |
811 | #endif | |
812 | ||
813 | spin_unlock_irqrestore(&s->lock, flags); | |
814 | } | |
815 | ||
816 | ||
817 | static void start_dac(struct cs4297a_state *s) | |
818 | { | |
819 | unsigned long flags; | |
820 | ||
821 | CS_DBGOUT(CS_FUNCTION, 3, printk(KERN_INFO "cs4297a: start_dac()+\n")); | |
822 | spin_lock_irqsave(&s->lock, flags); | |
823 | if (!(s->ena & FMODE_WRITE) && (s->dma_dac.mapped || | |
824 | (s->dma_dac.count > 0 | |
825 | && s->dma_dac.ready))) { | |
826 | s->ena |= FMODE_WRITE; | |
827 | /* XXXKW what do I really want here? My theory for | |
828 | now is that I just flip the "ena" bit, and the | |
829 | interrupt handler will start processing the xmit | |
830 | channel */ | |
831 | ||
832 | CS_DBGOUT(CS_WAVE_WRITE | CS_PARMS, 8, printk(KERN_INFO | |
833 | "cs4297a: start_dac(): start dma\n")); | |
834 | ||
835 | } | |
836 | spin_unlock_irqrestore(&s->lock, flags); | |
837 | CS_DBGOUT(CS_FUNCTION, 3, | |
838 | printk(KERN_INFO "cs4297a: start_dac()-\n")); | |
839 | } | |
840 | ||
841 | ||
842 | static void stop_adc(struct cs4297a_state *s) | |
843 | { | |
844 | unsigned long flags; | |
845 | ||
846 | CS_DBGOUT(CS_FUNCTION, 3, | |
847 | printk(KERN_INFO "cs4297a: stop_adc()+\n")); | |
848 | ||
849 | spin_lock_irqsave(&s->lock, flags); | |
850 | s->ena &= ~FMODE_READ; | |
851 | ||
852 | if (s->conversion == 1) { | |
853 | s->conversion = 0; | |
854 | s->prop_adc.fmt = s->prop_adc.fmt_original; | |
855 | } | |
856 | /* Nothing to do really, I need to keep the DMA going | |
857 | XXXKW when do I get here, and is there more I should do? */ | |
858 | spin_unlock_irqrestore(&s->lock, flags); | |
859 | CS_DBGOUT(CS_FUNCTION, 3, | |
860 | printk(KERN_INFO "cs4297a: stop_adc()-\n")); | |
861 | } | |
862 | ||
863 | ||
864 | static void start_adc(struct cs4297a_state *s) | |
865 | { | |
866 | unsigned long flags; | |
867 | ||
868 | CS_DBGOUT(CS_FUNCTION, 2, | |
869 | printk(KERN_INFO "cs4297a: start_adc()+\n")); | |
870 | ||
871 | if (!(s->ena & FMODE_READ) && | |
872 | (s->dma_adc.mapped || s->dma_adc.count <= | |
873 | (signed) (s->dma_adc.sbufsz - 2 * s->dma_adc.fragsize)) | |
874 | && s->dma_adc.ready) { | |
875 | if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) { | |
876 | // | |
877 | // now only use 16 bit capture, due to truncation issue | |
25985edc | 878 | // in the chip, noticeable distortion occurs. |
1da177e4 LT |
879 | // allocate buffer and then convert from 16 bit to |
880 | // 8 bit for the user buffer. | |
881 | // | |
882 | s->prop_adc.fmt_original = s->prop_adc.fmt; | |
883 | if (s->prop_adc.fmt & AFMT_S8) { | |
884 | s->prop_adc.fmt &= ~AFMT_S8; | |
885 | s->prop_adc.fmt |= AFMT_S16_LE; | |
886 | } | |
887 | if (s->prop_adc.fmt & AFMT_U8) { | |
888 | s->prop_adc.fmt &= ~AFMT_U8; | |
889 | s->prop_adc.fmt |= AFMT_U16_LE; | |
890 | } | |
891 | // | |
892 | // prog_dmabuf_adc performs a stop_adc() but that is | |
893 | // ok since we really haven't started the DMA yet. | |
894 | // | |
895 | prog_codec(s, CS_TYPE_ADC); | |
896 | ||
897 | prog_dmabuf_adc(s); | |
898 | s->conversion = 1; | |
899 | } | |
900 | spin_lock_irqsave(&s->lock, flags); | |
901 | s->ena |= FMODE_READ; | |
902 | /* Nothing to do really, I am probably already | |
903 | DMAing... XXXKW when do I get here, and is there | |
904 | more I should do? */ | |
905 | spin_unlock_irqrestore(&s->lock, flags); | |
906 | ||
907 | CS_DBGOUT(CS_PARMS, 6, printk(KERN_INFO | |
908 | "cs4297a: start_adc(): start adc\n")); | |
909 | } | |
910 | CS_DBGOUT(CS_FUNCTION, 2, | |
911 | printk(KERN_INFO "cs4297a: start_adc()-\n")); | |
912 | ||
913 | } | |
914 | ||
915 | ||
916 | // call with spinlock held! | |
917 | static void cs4297a_update_ptr(struct cs4297a_state *s, int intflag) | |
918 | { | |
919 | int good_diff, diff, diff2; | |
920 | u64 *data_p, data; | |
921 | u32 *s_ptr; | |
922 | unsigned hwptr; | |
923 | u32 status; | |
924 | serdma_t *d; | |
925 | serdma_descr_t *descr; | |
926 | ||
927 | // update ADC pointer | |
928 | status = intflag ? __raw_readq(SS_CSR(R_SER_STATUS)) : 0; | |
929 | ||
930 | if ((s->ena & FMODE_READ) || (status & (M_SYNCSER_RX_EOP_COUNT))) { | |
931 | d = &s->dma_adc; | |
932 | hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - | |
933 | d->descrtab_phys) / sizeof(serdma_descr_t)); | |
934 | ||
935 | if (s->ena & FMODE_READ) { | |
936 | CS_DBGOUT(CS_FUNCTION, 2, | |
937 | printk(KERN_INFO "cs4297a: upd_rcv sw->hw->hw %x/%x/%x (int-%d)n", | |
938 | d->swptr, d->hwptr, hwptr, intflag)); | |
939 | /* Number of DMA buffers available for software: */ | |
940 | diff2 = diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; | |
941 | d->hwptr = hwptr; | |
942 | good_diff = 0; | |
943 | s_ptr = (u32 *)&(d->dma_buf[d->swptr*4]); | |
944 | descr = &d->descrtab[d->swptr]; | |
945 | while (diff2--) { | |
946 | u64 data = be64_to_cpu(*(u64 *)s_ptr); | |
947 | u64 descr_a; | |
948 | u16 left, right; | |
949 | descr_a = descr->descr_a; | |
950 | descr->descr_a &= ~M_DMA_SERRX_SOP; | |
951 | if ((descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)s_ptr)) { | |
952 | printk(KERN_ERR "cs4297a: RX Bad address (read)\n"); | |
953 | } | |
954 | if (((data & 0x9800000000000000) != 0x9800000000000000) || | |
955 | (!(descr_a & M_DMA_SERRX_SOP)) || | |
956 | (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { | |
957 | s->stats.rx_bad++; | |
958 | printk(KERN_DEBUG "cs4297a: RX Bad attributes (read)\n"); | |
959 | continue; | |
960 | } | |
961 | s->stats.rx_good++; | |
962 | if ((data >> 61) == 7) { | |
963 | s->read_value = (data >> 12) & 0xffff; | |
964 | s->read_reg = (data >> 40) & 0x7f; | |
965 | wake_up(&d->reg_wait); | |
966 | } | |
967 | if (d->count && (d->sb_hwptr == d->sb_swptr)) { | |
968 | s->stats.rx_overflow++; | |
969 | printk(KERN_DEBUG "cs4297a: RX overflow\n"); | |
970 | continue; | |
971 | } | |
972 | good_diff++; | |
973 | left = ((be32_to_cpu(s_ptr[1]) & 0xff) << 8) | | |
974 | ((be32_to_cpu(s_ptr[2]) >> 24) & 0xff); | |
975 | right = (be32_to_cpu(s_ptr[2]) >> 4) & 0xffff; | |
976 | *d->sb_hwptr++ = cpu_to_be16(left); | |
977 | *d->sb_hwptr++ = cpu_to_be16(right); | |
978 | if (d->sb_hwptr == d->sb_end) | |
979 | d->sb_hwptr = d->sample_buf; | |
980 | descr++; | |
981 | if (descr == d->descrtab_end) { | |
982 | descr = d->descrtab; | |
983 | s_ptr = (u32 *)s->dma_adc.dma_buf; | |
984 | } else { | |
985 | s_ptr += 8; | |
986 | } | |
987 | } | |
988 | d->total_bytes += good_diff * FRAME_SAMPLE_BYTES; | |
989 | d->count += good_diff * FRAME_SAMPLE_BYTES; | |
990 | if (d->count > d->sbufsz) { | |
991 | printk(KERN_ERR "cs4297a: bogus receive overflow!!\n"); | |
992 | } | |
993 | d->swptr = (d->swptr + diff) % d->ringsz; | |
994 | __raw_writeq(diff, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); | |
995 | if (d->mapped) { | |
996 | if (d->count >= (signed) d->fragsize) | |
997 | wake_up(&d->wait); | |
998 | } else { | |
999 | if (d->count > 0) { | |
1000 | CS_DBGOUT(CS_WAVE_READ, 4, | |
1001 | printk(KERN_INFO | |
1002 | "cs4297a: update count -> %d\n", d->count)); | |
1003 | wake_up(&d->wait); | |
1004 | } | |
1005 | } | |
1006 | } else { | |
1007 | /* Receive is going even if no one is | |
1008 | listening (for register accesses and to | |
1009 | avoid FIFO overrun) */ | |
1010 | diff2 = diff = (hwptr + d->ringsz - d->hwptr) % d->ringsz; | |
1011 | if (!diff) { | |
1012 | printk(KERN_ERR "cs4297a: RX full or empty?\n"); | |
1013 | } | |
1014 | ||
1015 | descr = &d->descrtab[d->swptr]; | |
1016 | data_p = &d->dma_buf[d->swptr*4]; | |
1017 | ||
1018 | /* Force this to happen at least once; I got | |
1019 | here because of an interrupt, so there must | |
1020 | be a buffer to process. */ | |
1021 | do { | |
1022 | data = be64_to_cpu(*data_p); | |
1023 | if ((descr->descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)data_p)) { | |
1024 | printk(KERN_ERR "cs4297a: RX Bad address %d (%llx %lx)\n", d->swptr, | |
1025 | (long long)(descr->descr_a & M_DMA_DSCRA_A_ADDR), | |
1026 | (long)CPHYSADDR((long)data_p)); | |
1027 | } | |
1028 | if (!(data & (1LL << 63)) || | |
1029 | !(descr->descr_a & M_DMA_SERRX_SOP) || | |
1030 | (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { | |
1031 | s->stats.rx_bad++; | |
1032 | printk(KERN_DEBUG "cs4297a: RX Bad attributes\n"); | |
1033 | } else { | |
1034 | s->stats.rx_good++; | |
1035 | if ((data >> 61) == 7) { | |
1036 | s->read_value = (data >> 12) & 0xffff; | |
1037 | s->read_reg = (data >> 40) & 0x7f; | |
1038 | wake_up(&d->reg_wait); | |
1039 | } | |
1040 | } | |
1041 | descr->descr_a &= ~M_DMA_SERRX_SOP; | |
1042 | descr++; | |
1043 | d->swptr++; | |
1044 | data_p += 4; | |
1045 | if (descr == d->descrtab_end) { | |
1046 | descr = d->descrtab; | |
1047 | d->swptr = 0; | |
1048 | data_p = d->dma_buf; | |
1049 | } | |
1050 | __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); | |
1051 | } while (--diff); | |
1052 | d->hwptr = hwptr; | |
1053 | ||
1054 | CS_DBGOUT(CS_DESCR, 6, | |
1055 | printk(KERN_INFO "cs4297a: hw/sw %x/%x\n", d->hwptr, d->swptr)); | |
1056 | } | |
1057 | ||
1058 | CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO | |
1059 | "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", | |
1060 | (unsigned)s, d->hwptr, | |
1061 | d->total_bytes, d->count)); | |
1062 | } | |
1063 | ||
1064 | /* XXXKW worry about s->reg_request -- there is a starvation | |
1065 | case if s->ena has FMODE_WRITE on, but the client isn't | |
1066 | doing writes */ | |
1067 | ||
1068 | // update DAC pointer | |
1069 | // | |
1070 | // check for end of buffer, means that we are going to wait for another interrupt | |
1071 | // to allow silence to fill the fifos on the part, to keep pops down to a minimum. | |
1072 | // | |
1073 | if (s->ena & FMODE_WRITE) { | |
1074 | serdma_t *d = &s->dma_dac; | |
1075 | hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - | |
1076 | d->descrtab_phys) / sizeof(serdma_descr_t)); | |
1077 | diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; | |
1078 | CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO | |
1079 | "cs4297a: cs4297a_update_ptr(): hw/hw/sw %x/%x/%x diff %d count %d\n", | |
1080 | d->hwptr, hwptr, d->swptr, diff, d->count)); | |
1081 | d->hwptr = hwptr; | |
1082 | /* XXXKW stereo? conversion? Just assume 2 16-bit samples for now */ | |
1083 | d->total_bytes += diff * FRAME_SAMPLE_BYTES; | |
1084 | if (d->mapped) { | |
1085 | d->count += diff * FRAME_SAMPLE_BYTES; | |
1086 | if (d->count >= d->fragsize) { | |
1087 | d->wakeup = 1; | |
1088 | wake_up(&d->wait); | |
1089 | if (d->count > d->sbufsz) | |
1090 | d->count &= d->sbufsz - 1; | |
1091 | } | |
1092 | } else { | |
1093 | d->count -= diff * FRAME_SAMPLE_BYTES; | |
1094 | if (d->count <= 0) { | |
1095 | // | |
1096 | // fill with silence, and do not shut down the DAC. | |
1097 | // Continue to play silence until the _release. | |
1098 | // | |
1099 | CS_DBGOUT(CS_WAVE_WRITE, 6, printk(KERN_INFO | |
1100 | "cs4297a: cs4297a_update_ptr(): memset %d at 0x%.8x for %d size \n", | |
1101 | (unsigned)(s->prop_dac.fmt & | |
1102 | (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0, | |
1103 | (unsigned)d->dma_buf, | |
1104 | d->ringsz)); | |
1105 | memset(d->dma_buf, 0, d->ringsz * FRAME_BYTES); | |
1106 | if (d->count < 0) { | |
1107 | d->underrun = 1; | |
1108 | s->stats.tx_underrun++; | |
1109 | d->count = 0; | |
1110 | CS_DBGOUT(CS_ERROR, 9, printk(KERN_INFO | |
1111 | "cs4297a: cs4297a_update_ptr(): underrun\n")); | |
1112 | } | |
1113 | } else if (d->count <= | |
1114 | (signed) d->fragsize | |
1115 | && !d->endcleared) { | |
1116 | /* XXXKW what is this for? */ | |
1117 | clear_advance(d->dma_buf, | |
1118 | d->sbufsz, | |
1119 | d->swptr, | |
1120 | d->fragsize, | |
1121 | 0); | |
1122 | d->endcleared = 1; | |
1123 | } | |
1124 | if ( (d->count <= (signed) d->sbufsz/2) || intflag) | |
1125 | { | |
1126 | CS_DBGOUT(CS_WAVE_WRITE, 4, | |
1127 | printk(KERN_INFO | |
1128 | "cs4297a: update count -> %d\n", d->count)); | |
1129 | wake_up(&d->wait); | |
1130 | } | |
1131 | } | |
1132 | CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO | |
1133 | "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", | |
1134 | (unsigned) s, d->hwptr, | |
1135 | d->total_bytes, d->count)); | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | static int mixer_ioctl(struct cs4297a_state *s, unsigned int cmd, | |
1140 | unsigned long arg) | |
1141 | { | |
1142 | // Index to mixer_src[] is value of AC97 Input Mux Select Reg. | |
1143 | // Value of array member is recording source Device ID Mask. | |
1144 | static const unsigned int mixer_src[8] = { | |
1145 | SOUND_MASK_MIC, SOUND_MASK_CD, 0, SOUND_MASK_LINE1, | |
1146 | SOUND_MASK_LINE, SOUND_MASK_VOLUME, 0, 0 | |
1147 | }; | |
1148 | ||
1149 | // Index of mixtable1[] member is Device ID | |
1150 | // and must be <= SOUND_MIXER_NRDEVICES. | |
1151 | // Value of array member is index into s->mix.vol[] | |
1152 | static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { | |
1153 | [SOUND_MIXER_PCM] = 1, // voice | |
1154 | [SOUND_MIXER_LINE1] = 2, // AUX | |
1155 | [SOUND_MIXER_CD] = 3, // CD | |
1156 | [SOUND_MIXER_LINE] = 4, // Line | |
1157 | [SOUND_MIXER_SYNTH] = 5, // FM | |
1158 | [SOUND_MIXER_MIC] = 6, // Mic | |
1159 | [SOUND_MIXER_SPEAKER] = 7, // Speaker | |
1160 | [SOUND_MIXER_RECLEV] = 8, // Recording level | |
1161 | [SOUND_MIXER_VOLUME] = 9 // Master Volume | |
1162 | }; | |
1163 | ||
1164 | static const unsigned mixreg[] = { | |
1165 | AC97_PCMOUT_VOL, | |
1166 | AC97_AUX_VOL, | |
1167 | AC97_CD_VOL, | |
1168 | AC97_LINEIN_VOL | |
1169 | }; | |
1170 | unsigned char l, r, rl, rr, vidx; | |
1171 | unsigned char attentbl[11] = | |
1172 | { 63, 42, 26, 17, 14, 11, 8, 6, 4, 2, 0 }; | |
1173 | unsigned temp1; | |
1174 | int i, val; | |
1175 | ||
1176 | VALIDATE_STATE(s); | |
1177 | CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO | |
1178 | "cs4297a: mixer_ioctl(): s=0x%.8x cmd=0x%.8x\n", | |
1179 | (unsigned) s, cmd)); | |
1180 | #if CSDEBUG | |
1181 | cs_printioctl(cmd); | |
1182 | #endif | |
1183 | #if CSDEBUG_INTERFACE | |
1184 | ||
1185 | if ((cmd == SOUND_MIXER_CS_GETDBGMASK) || | |
1186 | (cmd == SOUND_MIXER_CS_SETDBGMASK) || | |
1187 | (cmd == SOUND_MIXER_CS_GETDBGLEVEL) || | |
1188 | (cmd == SOUND_MIXER_CS_SETDBGLEVEL)) | |
1189 | { | |
1190 | switch (cmd) { | |
1191 | ||
1192 | case SOUND_MIXER_CS_GETDBGMASK: | |
1193 | return put_user(cs_debugmask, | |
1194 | (unsigned long *) arg); | |
1195 | ||
1196 | case SOUND_MIXER_CS_GETDBGLEVEL: | |
1197 | return put_user(cs_debuglevel, | |
1198 | (unsigned long *) arg); | |
1199 | ||
1200 | case SOUND_MIXER_CS_SETDBGMASK: | |
1201 | if (get_user(val, (unsigned long *) arg)) | |
1202 | return -EFAULT; | |
1203 | cs_debugmask = val; | |
1204 | return 0; | |
1205 | ||
1206 | case SOUND_MIXER_CS_SETDBGLEVEL: | |
1207 | if (get_user(val, (unsigned long *) arg)) | |
1208 | return -EFAULT; | |
1209 | cs_debuglevel = val; | |
1210 | return 0; | |
1211 | default: | |
1212 | CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO | |
1213 | "cs4297a: mixer_ioctl(): ERROR unknown debug cmd\n")); | |
1214 | return 0; | |
1215 | } | |
1216 | } | |
1217 | #endif | |
1218 | ||
1219 | if (cmd == SOUND_MIXER_PRIVATE1) { | |
1220 | return -EINVAL; | |
1221 | } | |
1222 | if (cmd == SOUND_MIXER_PRIVATE2) { | |
1223 | // enable/disable/query spatializer | |
1224 | if (get_user(val, (int *) arg)) | |
1225 | return -EFAULT; | |
1226 | if (val != -1) { | |
1227 | temp1 = (val & 0x3f) >> 2; | |
1228 | cs4297a_write_ac97(s, AC97_3D_CONTROL, temp1); | |
1229 | cs4297a_read_ac97(s, AC97_GENERAL_PURPOSE, | |
1230 | &temp1); | |
1231 | cs4297a_write_ac97(s, AC97_GENERAL_PURPOSE, | |
1232 | temp1 | 0x2000); | |
1233 | } | |
1234 | cs4297a_read_ac97(s, AC97_3D_CONTROL, &temp1); | |
1235 | return put_user((temp1 << 2) | 3, (int *) arg); | |
1236 | } | |
1237 | if (cmd == SOUND_MIXER_INFO) { | |
1238 | mixer_info info; | |
1239 | memset(&info, 0, sizeof(info)); | |
1240 | strlcpy(info.id, "CS4297a", sizeof(info.id)); | |
1241 | strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); | |
1242 | info.modify_counter = s->mix.modcnt; | |
1243 | if (copy_to_user((void *) arg, &info, sizeof(info))) | |
1244 | return -EFAULT; | |
1245 | return 0; | |
1246 | } | |
1247 | if (cmd == SOUND_OLD_MIXER_INFO) { | |
1248 | _old_mixer_info info; | |
1249 | memset(&info, 0, sizeof(info)); | |
1250 | strlcpy(info.id, "CS4297a", sizeof(info.id)); | |
1251 | strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); | |
1252 | if (copy_to_user((void *) arg, &info, sizeof(info))) | |
1253 | return -EFAULT; | |
1254 | return 0; | |
1255 | } | |
1256 | if (cmd == OSS_GETVERSION) | |
1257 | return put_user(SOUND_VERSION, (int *) arg); | |
1258 | ||
1259 | if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) | |
1260 | return -EINVAL; | |
1261 | ||
1262 | // If ioctl has only the SIOC_READ bit(bit 31) | |
1263 | // on, process the only-read commands. | |
1264 | if (_SIOC_DIR(cmd) == _SIOC_READ) { | |
1265 | switch (_IOC_NR(cmd)) { | |
1266 | case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source | |
1267 | cs4297a_read_ac97(s, AC97_RECORD_SELECT, | |
1268 | &temp1); | |
1269 | return put_user(mixer_src[temp1 & 7], (int *) arg); | |
1270 | ||
1271 | case SOUND_MIXER_DEVMASK: // Arg contains a bit for each supported device | |
1272 | return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | | |
1273 | SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, | |
1274 | (int *) arg); | |
1275 | ||
1276 | case SOUND_MIXER_RECMASK: // Arg contains a bit for each supported recording source | |
1277 | return put_user(SOUND_MASK_LINE | SOUND_MASK_VOLUME, | |
1278 | (int *) arg); | |
1279 | ||
1280 | case SOUND_MIXER_STEREODEVS: // Mixer channels supporting stereo | |
1281 | return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | | |
1282 | SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, | |
1283 | (int *) arg); | |
1284 | ||
1285 | case SOUND_MIXER_CAPS: | |
1286 | return put_user(SOUND_CAP_EXCL_INPUT, (int *) arg); | |
1287 | ||
1288 | default: | |
1289 | i = _IOC_NR(cmd); | |
1290 | if (i >= SOUND_MIXER_NRDEVICES | |
1291 | || !(vidx = mixtable1[i])) | |
1292 | return -EINVAL; | |
1293 | return put_user(s->mix.vol[vidx - 1], (int *) arg); | |
1294 | } | |
1295 | } | |
1296 | // If ioctl doesn't have both the SIOC_READ and | |
1297 | // the SIOC_WRITE bit set, return invalid. | |
1298 | if (_SIOC_DIR(cmd) != (_SIOC_READ | _SIOC_WRITE)) | |
1299 | return -EINVAL; | |
1300 | ||
1301 | // Increment the count of volume writes. | |
1302 | s->mix.modcnt++; | |
1303 | ||
1304 | // Isolate the command; it must be a write. | |
1305 | switch (_IOC_NR(cmd)) { | |
1306 | ||
1307 | case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source | |
1308 | if (get_user(val, (int *) arg)) | |
1309 | return -EFAULT; | |
1310 | i = hweight32(val); // i = # bits on in val. | |
1311 | if (i != 1) // One & only 1 bit must be on. | |
1312 | return 0; | |
1313 | for (i = 0; i < sizeof(mixer_src) / sizeof(int); i++) { | |
1314 | if (val == mixer_src[i]) { | |
1315 | temp1 = (i << 8) | i; | |
1316 | cs4297a_write_ac97(s, | |
1317 | AC97_RECORD_SELECT, | |
1318 | temp1); | |
1319 | return 0; | |
1320 | } | |
1321 | } | |
1322 | return 0; | |
1323 | ||
1324 | case SOUND_MIXER_VOLUME: | |
1325 | if (get_user(val, (int *) arg)) | |
1326 | return -EFAULT; | |
1327 | l = val & 0xff; | |
1328 | if (l > 100) | |
1329 | l = 100; // Max soundcard.h vol is 100. | |
1330 | if (l < 6) { | |
1331 | rl = 63; | |
1332 | l = 0; | |
1333 | } else | |
1334 | rl = attentbl[(10 * l) / 100]; // Convert 0-100 vol to 63-0 atten. | |
1335 | ||
1336 | r = (val >> 8) & 0xff; | |
1337 | if (r > 100) | |
1338 | r = 100; // Max right volume is 100, too | |
1339 | if (r < 6) { | |
1340 | rr = 63; | |
1341 | r = 0; | |
1342 | } else | |
1343 | rr = attentbl[(10 * r) / 100]; // Convert volume to attenuation. | |
1344 | ||
1345 | if ((rl > 60) && (rr > 60)) // If both l & r are 'low', | |
1346 | temp1 = 0x8000; // turn on the mute bit. | |
1347 | else | |
1348 | temp1 = 0; | |
1349 | ||
1350 | temp1 |= (rl << 8) | rr; | |
1351 | ||
1352 | cs4297a_write_ac97(s, AC97_MASTER_VOL_STEREO, temp1); | |
1353 | cs4297a_write_ac97(s, AC97_PHONE_VOL, temp1); | |
1354 | ||
1355 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1356 | s->mix.vol[8] = ((unsigned int) r << 8) | l; | |
1357 | #else | |
1358 | s->mix.vol[8] = val; | |
1359 | #endif | |
1360 | return put_user(s->mix.vol[8], (int *) arg); | |
1361 | ||
1362 | case SOUND_MIXER_SPEAKER: | |
1363 | if (get_user(val, (int *) arg)) | |
1364 | return -EFAULT; | |
1365 | l = val & 0xff; | |
1366 | if (l > 100) | |
1367 | l = 100; | |
1368 | if (l < 3) { | |
1369 | rl = 0; | |
1370 | l = 0; | |
1371 | } else { | |
1372 | rl = (l * 2 - 5) / 13; // Convert 0-100 range to 0-15. | |
1373 | l = (rl * 13 + 5) / 2; | |
1374 | } | |
1375 | ||
1376 | if (rl < 3) { | |
1377 | temp1 = 0x8000; | |
1378 | rl = 0; | |
1379 | } else | |
1380 | temp1 = 0; | |
1381 | rl = 15 - rl; // Convert volume to attenuation. | |
1382 | temp1 |= rl << 1; | |
1383 | cs4297a_write_ac97(s, AC97_PCBEEP_VOL, temp1); | |
1384 | ||
1385 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1386 | s->mix.vol[6] = l << 8; | |
1387 | #else | |
1388 | s->mix.vol[6] = val; | |
1389 | #endif | |
1390 | return put_user(s->mix.vol[6], (int *) arg); | |
1391 | ||
1392 | case SOUND_MIXER_RECLEV: | |
1393 | if (get_user(val, (int *) arg)) | |
1394 | return -EFAULT; | |
1395 | l = val & 0xff; | |
1396 | if (l > 100) | |
1397 | l = 100; | |
1398 | r = (val >> 8) & 0xff; | |
1399 | if (r > 100) | |
1400 | r = 100; | |
1401 | rl = (l * 2 - 5) / 13; // Convert 0-100 scale to 0-15. | |
1402 | rr = (r * 2 - 5) / 13; | |
1403 | if (rl < 3 && rr < 3) | |
1404 | temp1 = 0x8000; | |
1405 | else | |
1406 | temp1 = 0; | |
1407 | ||
1408 | temp1 = temp1 | (rl << 8) | rr; | |
1409 | cs4297a_write_ac97(s, AC97_RECORD_GAIN, temp1); | |
1410 | ||
1411 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1412 | s->mix.vol[7] = ((unsigned int) r << 8) | l; | |
1413 | #else | |
1414 | s->mix.vol[7] = val; | |
1415 | #endif | |
1416 | return put_user(s->mix.vol[7], (int *) arg); | |
1417 | ||
1418 | case SOUND_MIXER_MIC: | |
1419 | if (get_user(val, (int *) arg)) | |
1420 | return -EFAULT; | |
1421 | l = val & 0xff; | |
1422 | if (l > 100) | |
1423 | l = 100; | |
1424 | if (l < 1) { | |
1425 | l = 0; | |
1426 | rl = 0; | |
1427 | } else { | |
1428 | rl = ((unsigned) l * 5 - 4) / 16; // Convert 0-100 range to 0-31. | |
1429 | l = (rl * 16 + 4) / 5; | |
1430 | } | |
1431 | cs4297a_read_ac97(s, AC97_MIC_VOL, &temp1); | |
1432 | temp1 &= 0x40; // Isolate 20db gain bit. | |
1433 | if (rl < 3) { | |
1434 | temp1 |= 0x8000; | |
1435 | rl = 0; | |
1436 | } | |
1437 | rl = 31 - rl; // Convert volume to attenuation. | |
1438 | temp1 |= rl; | |
1439 | cs4297a_write_ac97(s, AC97_MIC_VOL, temp1); | |
1440 | ||
1441 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1442 | s->mix.vol[5] = val << 8; | |
1443 | #else | |
1444 | s->mix.vol[5] = val; | |
1445 | #endif | |
1446 | return put_user(s->mix.vol[5], (int *) arg); | |
1447 | ||
1448 | ||
1449 | case SOUND_MIXER_SYNTH: | |
1450 | if (get_user(val, (int *) arg)) | |
1451 | return -EFAULT; | |
1452 | l = val & 0xff; | |
1453 | if (l > 100) | |
1454 | l = 100; | |
1455 | if (get_user(val, (int *) arg)) | |
1456 | return -EFAULT; | |
1457 | r = (val >> 8) & 0xff; | |
1458 | if (r > 100) | |
1459 | r = 100; | |
1460 | rl = (l * 2 - 11) / 3; // Convert 0-100 range to 0-63. | |
1461 | rr = (r * 2 - 11) / 3; | |
1462 | if (rl < 3) // If l is low, turn on | |
1463 | temp1 = 0x0080; // the mute bit. | |
1464 | else | |
1465 | temp1 = 0; | |
1466 | ||
1467 | rl = 63 - rl; // Convert vol to attenuation. | |
1468 | // writel(temp1 | rl, s->pBA0 + FMLVC); | |
1469 | if (rr < 3) // If rr is low, turn on | |
1470 | temp1 = 0x0080; // the mute bit. | |
1471 | else | |
1472 | temp1 = 0; | |
1473 | rr = 63 - rr; // Convert vol to attenuation. | |
1474 | // writel(temp1 | rr, s->pBA0 + FMRVC); | |
1475 | ||
1476 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1477 | s->mix.vol[4] = (r << 8) | l; | |
1478 | #else | |
1479 | s->mix.vol[4] = val; | |
1480 | #endif | |
1481 | return put_user(s->mix.vol[4], (int *) arg); | |
1482 | ||
1483 | ||
1484 | default: | |
1485 | CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO | |
1486 | "cs4297a: mixer_ioctl(): default\n")); | |
1487 | ||
1488 | i = _IOC_NR(cmd); | |
1489 | if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) | |
1490 | return -EINVAL; | |
1491 | if (get_user(val, (int *) arg)) | |
1492 | return -EFAULT; | |
1493 | l = val & 0xff; | |
1494 | if (l > 100) | |
1495 | l = 100; | |
1496 | if (l < 1) { | |
1497 | l = 0; | |
1498 | rl = 31; | |
1499 | } else | |
1500 | rl = (attentbl[(l * 10) / 100]) >> 1; | |
1501 | ||
1502 | r = (val >> 8) & 0xff; | |
1503 | if (r > 100) | |
1504 | r = 100; | |
1505 | if (r < 1) { | |
1506 | r = 0; | |
1507 | rr = 31; | |
1508 | } else | |
1509 | rr = (attentbl[(r * 10) / 100]) >> 1; | |
1510 | if ((rl > 30) && (rr > 30)) | |
1511 | temp1 = 0x8000; | |
1512 | else | |
1513 | temp1 = 0; | |
1514 | temp1 = temp1 | (rl << 8) | rr; | |
1515 | cs4297a_write_ac97(s, mixreg[vidx - 1], temp1); | |
1516 | ||
1517 | #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS | |
1518 | s->mix.vol[vidx - 1] = ((unsigned int) r << 8) | l; | |
1519 | #else | |
1520 | s->mix.vol[vidx - 1] = val; | |
1521 | #endif | |
1522 | return put_user(s->mix.vol[vidx - 1], (int *) arg); | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | ||
1527 | // --------------------------------------------------------------------- | |
1528 | ||
1529 | static int cs4297a_open_mixdev(struct inode *inode, struct file *file) | |
1530 | { | |
1531 | int minor = iminor(inode); | |
1532 | struct cs4297a_state *s=NULL; | |
1533 | struct list_head *entry; | |
1534 | ||
1535 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, | |
1536 | printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n")); | |
1537 | ||
645ef9ef | 1538 | mutex_lock(&swarm_cs4297a_mutex); |
1da177e4 LT |
1539 | list_for_each(entry, &cs4297a_devs) |
1540 | { | |
1541 | s = list_entry(entry, struct cs4297a_state, list); | |
1542 | if(s->dev_mixer == minor) | |
1543 | break; | |
1544 | } | |
1545 | if (!s) | |
1546 | { | |
1547 | CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, | |
1548 | printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- -ENODEV\n")); | |
90dc763f | 1549 | |
645ef9ef | 1550 | mutex_unlock(&swarm_cs4297a_mutex); |
1da177e4 LT |
1551 | return -ENODEV; |
1552 | } | |
1553 | VALIDATE_STATE(s); | |
1554 | file->private_data = s; | |
1555 | ||
1556 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, | |
1557 | printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- 0\n")); | |
645ef9ef | 1558 | mutex_unlock(&swarm_cs4297a_mutex); |
1da177e4 LT |
1559 | |
1560 | return nonseekable_open(inode, file); | |
1561 | } | |
1562 | ||
1563 | ||
1564 | static int cs4297a_release_mixdev(struct inode *inode, struct file *file) | |
1565 | { | |
1566 | struct cs4297a_state *s = | |
1567 | (struct cs4297a_state *) file->private_data; | |
1568 | ||
1569 | VALIDATE_STATE(s); | |
1570 | return 0; | |
1571 | } | |
1572 | ||
1573 | ||
d209974c | 1574 | static int cs4297a_ioctl_mixdev(struct file *file, |
1da177e4 LT |
1575 | unsigned int cmd, unsigned long arg) |
1576 | { | |
d209974c | 1577 | int ret; |
645ef9ef | 1578 | mutex_lock(&swarm_cs4297a_mutex); |
d209974c | 1579 | ret = mixer_ioctl((struct cs4297a_state *) file->private_data, cmd, |
1da177e4 | 1580 | arg); |
645ef9ef | 1581 | mutex_unlock(&swarm_cs4297a_mutex); |
d209974c | 1582 | return ret; |
1da177e4 LT |
1583 | } |
1584 | ||
1585 | ||
1586 | // ****************************************************************************************** | |
1587 | // Mixer file operations struct. | |
1588 | // ****************************************************************************************** | |
c8cece84 | 1589 | static const struct file_operations cs4297a_mixer_fops = { |
1da177e4 LT |
1590 | .owner = THIS_MODULE, |
1591 | .llseek = no_llseek, | |
d209974c | 1592 | .unlocked_ioctl = cs4297a_ioctl_mixdev, |
1da177e4 LT |
1593 | .open = cs4297a_open_mixdev, |
1594 | .release = cs4297a_release_mixdev, | |
1595 | }; | |
1596 | ||
1597 | // --------------------------------------------------------------------- | |
1598 | ||
1599 | ||
1600 | static int drain_adc(struct cs4297a_state *s, int nonblock) | |
1601 | { | |
1602 | /* This routine serves no purpose currently - any samples | |
1603 | sitting in the receive queue will just be processed by the | |
1604 | background consumer. This would be different if DMA | |
1605 | actually stopped when there were no clients. */ | |
1606 | return 0; | |
1607 | } | |
1608 | ||
1609 | static int drain_dac(struct cs4297a_state *s, int nonblock) | |
1610 | { | |
1611 | DECLARE_WAITQUEUE(wait, current); | |
1612 | unsigned long flags; | |
1613 | unsigned hwptr; | |
1614 | unsigned tmo; | |
1615 | int count; | |
1616 | ||
1617 | if (s->dma_dac.mapped) | |
1618 | return 0; | |
1619 | if (nonblock) | |
1620 | return -EBUSY; | |
1621 | add_wait_queue(&s->dma_dac.wait, &wait); | |
1622 | while ((count = __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) || | |
1623 | (s->dma_dac.count > 0)) { | |
1624 | if (!signal_pending(current)) { | |
1625 | set_current_state(TASK_INTERRUPTIBLE); | |
1626 | /* XXXKW is this calculation working? */ | |
1627 | tmo = ((count * FRAME_TX_US) * HZ) / 1000000; | |
1628 | schedule_timeout(tmo + 1); | |
1629 | } else { | |
1630 | /* XXXKW do I care if there is a signal pending? */ | |
1631 | } | |
1632 | } | |
1633 | spin_lock_irqsave(&s->lock, flags); | |
1634 | /* Reset the bookkeeping */ | |
1635 | hwptr = (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - | |
1636 | s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); | |
1637 | s->dma_dac.hwptr = s->dma_dac.swptr = hwptr; | |
1638 | spin_unlock_irqrestore(&s->lock, flags); | |
1639 | remove_wait_queue(&s->dma_dac.wait, &wait); | |
1640 | current->state = TASK_RUNNING; | |
1641 | return 0; | |
1642 | } | |
1643 | ||
1644 | ||
1645 | // --------------------------------------------------------------------- | |
1646 | ||
1647 | static ssize_t cs4297a_read(struct file *file, char *buffer, size_t count, | |
1648 | loff_t * ppos) | |
1649 | { | |
1650 | struct cs4297a_state *s = | |
1651 | (struct cs4297a_state *) file->private_data; | |
1652 | ssize_t ret; | |
1653 | unsigned long flags; | |
1654 | int cnt, count_fr, cnt_by; | |
1655 | unsigned copied = 0; | |
1656 | ||
1657 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, | |
1658 | printk(KERN_INFO "cs4297a: cs4297a_read()+ %d \n", count)); | |
1659 | ||
1660 | VALIDATE_STATE(s); | |
1661 | if (s->dma_adc.mapped) | |
1662 | return -ENXIO; | |
1663 | if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) | |
1664 | return ret; | |
1665 | if (!access_ok(VERIFY_WRITE, buffer, count)) | |
1666 | return -EFAULT; | |
1667 | ret = 0; | |
1668 | // | |
1669 | // "count" is the amount of bytes to read (from app), is decremented each loop | |
1670 | // by the amount of bytes that have been returned to the user buffer. | |
1671 | // "cnt" is the running total of each read from the buffer (changes each loop) | |
1672 | // "buffer" points to the app's buffer | |
1673 | // "ret" keeps a running total of the amount of bytes that have been copied | |
1674 | // to the user buffer. | |
1675 | // "copied" is the total bytes copied into the user buffer for each loop. | |
1676 | // | |
1677 | while (count > 0) { | |
1678 | CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO | |
1679 | "_read() count>0 count=%d .count=%d .swptr=%d .hwptr=%d \n", | |
1680 | count, s->dma_adc.count, | |
1681 | s->dma_adc.swptr, s->dma_adc.hwptr)); | |
1682 | spin_lock_irqsave(&s->lock, flags); | |
1683 | ||
1684 | /* cnt will be the number of available samples (16-bit | |
1685 | stereo); it starts out as the maxmimum consequetive | |
1686 | samples */ | |
1687 | cnt = (s->dma_adc.sb_end - s->dma_adc.sb_swptr) / 2; | |
1688 | count_fr = s->dma_adc.count / FRAME_SAMPLE_BYTES; | |
1689 | ||
1690 | // dma_adc.count is the current total bytes that have not been read. | |
1691 | // if the amount of unread bytes from the current sw pointer to the | |
1692 | // end of the buffer is greater than the current total bytes that | |
1693 | // have not been read, then set the "cnt" (unread bytes) to the | |
1694 | // amount of unread bytes. | |
1695 | ||
1696 | if (count_fr < cnt) | |
1697 | cnt = count_fr; | |
1698 | cnt_by = cnt * FRAME_SAMPLE_BYTES; | |
1699 | spin_unlock_irqrestore(&s->lock, flags); | |
1700 | // | |
1701 | // if we are converting from 8/16 then we need to copy | |
1702 | // twice the number of 16 bit bytes then 8 bit bytes. | |
1703 | // | |
1704 | if (s->conversion) { | |
1705 | if (cnt_by > (count * 2)) { | |
1706 | cnt = (count * 2) / FRAME_SAMPLE_BYTES; | |
1707 | cnt_by = count * 2; | |
1708 | } | |
1709 | } else { | |
1710 | if (cnt_by > count) { | |
1711 | cnt = count / FRAME_SAMPLE_BYTES; | |
1712 | cnt_by = count; | |
1713 | } | |
1714 | } | |
1715 | // | |
1716 | // "cnt" NOW is the smaller of the amount that will be read, | |
1717 | // and the amount that is requested in this read (or partial). | |
1718 | // if there are no bytes in the buffer to read, then start the | |
1719 | // ADC and wait for the interrupt handler to wake us up. | |
1720 | // | |
1721 | if (cnt <= 0) { | |
1722 | ||
1723 | // start up the dma engine and then continue back to the top of | |
1724 | // the loop when wake up occurs. | |
1725 | start_adc(s); | |
1726 | if (file->f_flags & O_NONBLOCK) | |
1727 | return ret ? ret : -EAGAIN; | |
1728 | interruptible_sleep_on(&s->dma_adc.wait); | |
1729 | if (signal_pending(current)) | |
1730 | return ret ? ret : -ERESTARTSYS; | |
1731 | continue; | |
1732 | } | |
1733 | // there are bytes in the buffer to read. | |
1734 | // copy from the hw buffer over to the user buffer. | |
1735 | // user buffer is designated by "buffer" | |
1736 | // virtual address to copy from is dma_buf+swptr | |
1737 | // the "cnt" is the number of bytes to read. | |
1738 | ||
1739 | CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO | |
1740 | "_read() copy_to cnt=%d count=%d ", cnt_by, count)); | |
1741 | CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO | |
1742 | " .sbufsz=%d .count=%d buffer=0x%.8x ret=%d\n", | |
1743 | s->dma_adc.sbufsz, s->dma_adc.count, | |
1744 | (unsigned) buffer, ret)); | |
1745 | ||
1746 | if (copy_to_user (buffer, ((void *)s->dma_adc.sb_swptr), cnt_by)) | |
1747 | return ret ? ret : -EFAULT; | |
1748 | copied = cnt_by; | |
1749 | ||
1750 | /* Return the descriptors */ | |
1751 | spin_lock_irqsave(&s->lock, flags); | |
1752 | CS_DBGOUT(CS_FUNCTION, 2, | |
1753 | printk(KERN_INFO "cs4297a: upd_rcv sw->hw %x/%x\n", s->dma_adc.swptr, s->dma_adc.hwptr)); | |
1754 | s->dma_adc.count -= cnt_by; | |
1755 | s->dma_adc.sb_swptr += cnt * 2; | |
1756 | if (s->dma_adc.sb_swptr == s->dma_adc.sb_end) | |
1757 | s->dma_adc.sb_swptr = s->dma_adc.sample_buf; | |
1758 | spin_unlock_irqrestore(&s->lock, flags); | |
1759 | count -= copied; | |
1760 | buffer += copied; | |
1761 | ret += copied; | |
1762 | start_adc(s); | |
1763 | } | |
1764 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, | |
1765 | printk(KERN_INFO "cs4297a: cs4297a_read()- %d\n", ret)); | |
1766 | return ret; | |
1767 | } | |
1768 | ||
1769 | ||
1770 | static ssize_t cs4297a_write(struct file *file, const char *buffer, | |
1771 | size_t count, loff_t * ppos) | |
1772 | { | |
1773 | struct cs4297a_state *s = | |
1774 | (struct cs4297a_state *) file->private_data; | |
1775 | ssize_t ret; | |
1776 | unsigned long flags; | |
1777 | unsigned swptr, hwptr; | |
1778 | int cnt; | |
1779 | ||
1780 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, | |
1781 | printk(KERN_INFO "cs4297a: cs4297a_write()+ count=%d\n", | |
1782 | count)); | |
1783 | VALIDATE_STATE(s); | |
1784 | ||
1785 | if (s->dma_dac.mapped) | |
1786 | return -ENXIO; | |
1787 | if (!s->dma_dac.ready && (ret = prog_dmabuf_dac(s))) | |
1788 | return ret; | |
1789 | if (!access_ok(VERIFY_READ, buffer, count)) | |
1790 | return -EFAULT; | |
1791 | ret = 0; | |
1792 | while (count > 0) { | |
1793 | serdma_t *d = &s->dma_dac; | |
1794 | int copy_cnt; | |
1795 | u32 *s_tmpl; | |
1796 | u32 *t_tmpl; | |
1797 | u32 left, right; | |
1798 | int swap = (s->prop_dac.fmt == AFMT_S16_LE) || (s->prop_dac.fmt == AFMT_U16_LE); | |
1799 | ||
1800 | /* XXXXXX this is broken for BLOAT_FACTOR */ | |
1801 | spin_lock_irqsave(&s->lock, flags); | |
1802 | if (d->count < 0) { | |
1803 | d->count = 0; | |
1804 | d->swptr = d->hwptr; | |
1805 | } | |
1806 | if (d->underrun) { | |
1807 | d->underrun = 0; | |
1808 | hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - | |
1809 | d->descrtab_phys) / sizeof(serdma_descr_t)); | |
1810 | d->swptr = d->hwptr = hwptr; | |
1811 | } | |
1812 | swptr = d->swptr; | |
1813 | cnt = d->sbufsz - (swptr * FRAME_SAMPLE_BYTES); | |
1814 | /* Will this write fill up the buffer? */ | |
1815 | if (d->count + cnt > d->sbufsz) | |
1816 | cnt = d->sbufsz - d->count; | |
1817 | spin_unlock_irqrestore(&s->lock, flags); | |
1818 | if (cnt > count) | |
1819 | cnt = count; | |
1820 | if (cnt <= 0) { | |
1821 | start_dac(s); | |
1822 | if (file->f_flags & O_NONBLOCK) | |
1823 | return ret ? ret : -EAGAIN; | |
1824 | interruptible_sleep_on(&d->wait); | |
1825 | if (signal_pending(current)) | |
1826 | return ret ? ret : -ERESTARTSYS; | |
1827 | continue; | |
1828 | } | |
1829 | if (copy_from_user(d->sample_buf, buffer, cnt)) | |
1830 | return ret ? ret : -EFAULT; | |
1831 | ||
1832 | copy_cnt = cnt; | |
1833 | s_tmpl = (u32 *)d->sample_buf; | |
1834 | t_tmpl = (u32 *)(d->dma_buf + (swptr * 4)); | |
1835 | ||
1836 | /* XXXKW assuming 16-bit stereo! */ | |
1837 | do { | |
1838 | u32 tmp; | |
1839 | ||
1840 | t_tmpl[0] = cpu_to_be32(0x98000000); | |
1841 | ||
1842 | tmp = be32_to_cpu(s_tmpl[0]); | |
1843 | left = tmp & 0xffff; | |
1844 | right = tmp >> 16; | |
1845 | if (swap) { | |
1846 | left = swab16(left); | |
1847 | right = swab16(right); | |
1848 | } | |
1849 | t_tmpl[1] = cpu_to_be32(left >> 8); | |
1850 | t_tmpl[2] = cpu_to_be32(((left & 0xff) << 24) | | |
1851 | (right << 4)); | |
1852 | ||
1853 | s_tmpl++; | |
1854 | t_tmpl += 8; | |
1855 | copy_cnt -= 4; | |
1856 | } while (copy_cnt); | |
1857 | ||
1858 | /* Mux in any pending read/write accesses */ | |
1859 | if (s->reg_request) { | |
1860 | *(u64 *)(d->dma_buf + (swptr * 4)) |= | |
1861 | cpu_to_be64(s->reg_request); | |
1862 | s->reg_request = 0; | |
1863 | wake_up(&s->dma_dac.reg_wait); | |
1864 | } | |
1865 | ||
1866 | CS_DBGOUT(CS_WAVE_WRITE, 4, | |
1867 | printk(KERN_INFO | |
1868 | "cs4297a: copy in %d to swptr %x\n", cnt, swptr)); | |
1869 | ||
1870 | swptr = (swptr + (cnt/FRAME_SAMPLE_BYTES)) % d->ringsz; | |
1871 | __raw_writeq(cnt/FRAME_SAMPLE_BYTES, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); | |
1872 | spin_lock_irqsave(&s->lock, flags); | |
1873 | d->swptr = swptr; | |
1874 | d->count += cnt; | |
1875 | d->endcleared = 0; | |
1876 | spin_unlock_irqrestore(&s->lock, flags); | |
1877 | count -= cnt; | |
1878 | buffer += cnt; | |
1879 | ret += cnt; | |
1880 | start_dac(s); | |
1881 | } | |
1882 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, | |
1883 | printk(KERN_INFO "cs4297a: cs4297a_write()- %d\n", ret)); | |
1884 | return ret; | |
1885 | } | |
1886 | ||
1887 | ||
1888 | static unsigned int cs4297a_poll(struct file *file, | |
1889 | struct poll_table_struct *wait) | |
1890 | { | |
1891 | struct cs4297a_state *s = | |
1892 | (struct cs4297a_state *) file->private_data; | |
1893 | unsigned long flags; | |
1894 | unsigned int mask = 0; | |
1895 | ||
1896 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, | |
1897 | printk(KERN_INFO "cs4297a: cs4297a_poll()+\n")); | |
1898 | VALIDATE_STATE(s); | |
1899 | if (file->f_mode & FMODE_WRITE) { | |
1900 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, | |
1901 | printk(KERN_INFO | |
1902 | "cs4297a: cs4297a_poll() wait on FMODE_WRITE\n")); | |
1903 | if(!s->dma_dac.ready && prog_dmabuf_dac(s)) | |
1904 | return 0; | |
1905 | poll_wait(file, &s->dma_dac.wait, wait); | |
1906 | } | |
1907 | if (file->f_mode & FMODE_READ) { | |
1908 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, | |
1909 | printk(KERN_INFO | |
1910 | "cs4297a: cs4297a_poll() wait on FMODE_READ\n")); | |
1911 | if(!s->dma_dac.ready && prog_dmabuf_adc(s)) | |
1912 | return 0; | |
1913 | poll_wait(file, &s->dma_adc.wait, wait); | |
1914 | } | |
1915 | spin_lock_irqsave(&s->lock, flags); | |
1916 | cs4297a_update_ptr(s,CS_FALSE); | |
1917 | if (file->f_mode & FMODE_WRITE) { | |
1918 | if (s->dma_dac.mapped) { | |
1919 | if (s->dma_dac.count >= | |
1920 | (signed) s->dma_dac.fragsize) { | |
1921 | if (s->dma_dac.wakeup) | |
1922 | mask |= POLLOUT | POLLWRNORM; | |
1923 | else | |
1924 | mask = 0; | |
1925 | s->dma_dac.wakeup = 0; | |
1926 | } | |
1927 | } else { | |
1928 | if ((signed) (s->dma_dac.sbufsz/2) >= s->dma_dac.count) | |
1929 | mask |= POLLOUT | POLLWRNORM; | |
1930 | } | |
1931 | } else if (file->f_mode & FMODE_READ) { | |
1932 | if (s->dma_adc.mapped) { | |
1933 | if (s->dma_adc.count >= (signed) s->dma_adc.fragsize) | |
1934 | mask |= POLLIN | POLLRDNORM; | |
1935 | } else { | |
1936 | if (s->dma_adc.count > 0) | |
1937 | mask |= POLLIN | POLLRDNORM; | |
1938 | } | |
1939 | } | |
1940 | spin_unlock_irqrestore(&s->lock, flags); | |
1941 | CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, | |
1942 | printk(KERN_INFO "cs4297a: cs4297a_poll()- 0x%.8x\n", | |
1943 | mask)); | |
1944 | return mask; | |
1945 | } | |
1946 | ||
1947 | ||
1948 | static int cs4297a_mmap(struct file *file, struct vm_area_struct *vma) | |
1949 | { | |
1950 | /* XXXKW currently no mmap support */ | |
1951 | return -EINVAL; | |
1952 | return 0; | |
1953 | } | |
1954 | ||
1955 | ||
d209974c | 1956 | static int cs4297a_ioctl(struct file *file, |
1da177e4 LT |
1957 | unsigned int cmd, unsigned long arg) |
1958 | { | |
1959 | struct cs4297a_state *s = | |
1960 | (struct cs4297a_state *) file->private_data; | |
1961 | unsigned long flags; | |
1962 | audio_buf_info abinfo; | |
1963 | count_info cinfo; | |
1964 | int val, mapped, ret; | |
1965 | ||
1966 | CS_DBGOUT(CS_FUNCTION|CS_IOCTL, 4, printk(KERN_INFO | |
1967 | "cs4297a: cs4297a_ioctl(): file=0x%.8x cmd=0x%.8x\n", | |
1968 | (unsigned) file, cmd)); | |
1969 | #if CSDEBUG | |
1970 | cs_printioctl(cmd); | |
1971 | #endif | |
1972 | VALIDATE_STATE(s); | |
1973 | mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) || | |
1974 | ((file->f_mode & FMODE_READ) && s->dma_adc.mapped); | |
1975 | switch (cmd) { | |
1976 | case OSS_GETVERSION: | |
1977 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
1978 | "cs4297a: cs4297a_ioctl(): SOUND_VERSION=0x%.8x\n", | |
1979 | SOUND_VERSION)); | |
1980 | return put_user(SOUND_VERSION, (int *) arg); | |
1981 | ||
1982 | case SNDCTL_DSP_SYNC: | |
1983 | CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO | |
1984 | "cs4297a: cs4297a_ioctl(): DSP_SYNC\n")); | |
1985 | if (file->f_mode & FMODE_WRITE) | |
1986 | return drain_dac(s, | |
1987 | 0 /*file->f_flags & O_NONBLOCK */ | |
1988 | ); | |
1989 | return 0; | |
1990 | ||
1991 | case SNDCTL_DSP_SETDUPLEX: | |
1992 | return 0; | |
1993 | ||
1994 | case SNDCTL_DSP_GETCAPS: | |
1995 | return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | | |
1996 | DSP_CAP_TRIGGER | DSP_CAP_MMAP, | |
1997 | (int *) arg); | |
1998 | ||
1999 | case SNDCTL_DSP_RESET: | |
2000 | CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO | |
2001 | "cs4297a: cs4297a_ioctl(): DSP_RESET\n")); | |
2002 | if (file->f_mode & FMODE_WRITE) { | |
2003 | stop_dac(s); | |
2004 | synchronize_irq(s->irq); | |
2005 | s->dma_dac.count = s->dma_dac.total_bytes = | |
2006 | s->dma_dac.blocks = s->dma_dac.wakeup = 0; | |
2007 | s->dma_dac.swptr = s->dma_dac.hwptr = | |
2008 | (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - | |
2009 | s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); | |
2010 | } | |
2011 | if (file->f_mode & FMODE_READ) { | |
2012 | stop_adc(s); | |
2013 | synchronize_irq(s->irq); | |
2014 | s->dma_adc.count = s->dma_adc.total_bytes = | |
2015 | s->dma_adc.blocks = s->dma_dac.wakeup = 0; | |
2016 | s->dma_adc.swptr = s->dma_adc.hwptr = | |
2017 | (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - | |
2018 | s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); | |
2019 | } | |
2020 | return 0; | |
2021 | ||
2022 | case SNDCTL_DSP_SPEED: | |
2023 | if (get_user(val, (int *) arg)) | |
2024 | return -EFAULT; | |
2025 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2026 | "cs4297a: cs4297a_ioctl(): DSP_SPEED val=%d -> 48000\n", val)); | |
2027 | val = 48000; | |
2028 | return put_user(val, (int *) arg); | |
2029 | ||
2030 | case SNDCTL_DSP_STEREO: | |
2031 | if (get_user(val, (int *) arg)) | |
2032 | return -EFAULT; | |
2033 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2034 | "cs4297a: cs4297a_ioctl(): DSP_STEREO val=%d\n", val)); | |
2035 | if (file->f_mode & FMODE_READ) { | |
2036 | stop_adc(s); | |
2037 | s->dma_adc.ready = 0; | |
2038 | s->prop_adc.channels = val ? 2 : 1; | |
2039 | } | |
2040 | if (file->f_mode & FMODE_WRITE) { | |
2041 | stop_dac(s); | |
2042 | s->dma_dac.ready = 0; | |
2043 | s->prop_dac.channels = val ? 2 : 1; | |
2044 | } | |
2045 | return 0; | |
2046 | ||
2047 | case SNDCTL_DSP_CHANNELS: | |
2048 | if (get_user(val, (int *) arg)) | |
2049 | return -EFAULT; | |
2050 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2051 | "cs4297a: cs4297a_ioctl(): DSP_CHANNELS val=%d\n", | |
2052 | val)); | |
2053 | if (val != 0) { | |
2054 | if (file->f_mode & FMODE_READ) { | |
2055 | stop_adc(s); | |
2056 | s->dma_adc.ready = 0; | |
2057 | if (val >= 2) | |
2058 | s->prop_adc.channels = 2; | |
2059 | else | |
2060 | s->prop_adc.channels = 1; | |
2061 | } | |
2062 | if (file->f_mode & FMODE_WRITE) { | |
2063 | stop_dac(s); | |
2064 | s->dma_dac.ready = 0; | |
2065 | if (val >= 2) | |
2066 | s->prop_dac.channels = 2; | |
2067 | else | |
2068 | s->prop_dac.channels = 1; | |
2069 | } | |
2070 | } | |
2071 | ||
2072 | if (file->f_mode & FMODE_WRITE) | |
2073 | val = s->prop_dac.channels; | |
2074 | else if (file->f_mode & FMODE_READ) | |
2075 | val = s->prop_adc.channels; | |
2076 | ||
2077 | return put_user(val, (int *) arg); | |
2078 | ||
2079 | case SNDCTL_DSP_GETFMTS: // Returns a mask | |
2080 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2081 | "cs4297a: cs4297a_ioctl(): DSP_GETFMT val=0x%.8x\n", | |
2082 | AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | | |
2083 | AFMT_U8)); | |
2084 | return put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | | |
2085 | AFMT_U8, (int *) arg); | |
2086 | ||
2087 | case SNDCTL_DSP_SETFMT: | |
2088 | if (get_user(val, (int *) arg)) | |
2089 | return -EFAULT; | |
2090 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2091 | "cs4297a: cs4297a_ioctl(): DSP_SETFMT val=0x%.8x\n", | |
2092 | val)); | |
2093 | if (val != AFMT_QUERY) { | |
2094 | if (file->f_mode & FMODE_READ) { | |
2095 | stop_adc(s); | |
2096 | s->dma_adc.ready = 0; | |
2097 | if (val != AFMT_S16_LE | |
2098 | && val != AFMT_U16_LE && val != AFMT_S8 | |
2099 | && val != AFMT_U8) | |
2100 | val = AFMT_U8; | |
2101 | s->prop_adc.fmt = val; | |
2102 | s->prop_adc.fmt_original = s->prop_adc.fmt; | |
2103 | } | |
2104 | if (file->f_mode & FMODE_WRITE) { | |
2105 | stop_dac(s); | |
2106 | s->dma_dac.ready = 0; | |
2107 | if (val != AFMT_S16_LE | |
2108 | && val != AFMT_U16_LE && val != AFMT_S8 | |
2109 | && val != AFMT_U8) | |
2110 | val = AFMT_U8; | |
2111 | s->prop_dac.fmt = val; | |
2112 | s->prop_dac.fmt_original = s->prop_dac.fmt; | |
2113 | } | |
2114 | } else { | |
2115 | if (file->f_mode & FMODE_WRITE) | |
2116 | val = s->prop_dac.fmt_original; | |
2117 | else if (file->f_mode & FMODE_READ) | |
2118 | val = s->prop_adc.fmt_original; | |
2119 | } | |
2120 | CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO | |
2121 | "cs4297a: cs4297a_ioctl(): DSP_SETFMT return val=0x%.8x\n", | |
2122 | val)); | |
2123 | return put_user(val, (int *) arg); | |
2124 | ||
2125 | case SNDCTL_DSP_POST: | |
2126 | CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO | |
2127 | "cs4297a: cs4297a_ioctl(): DSP_POST\n")); | |
2128 | return 0; | |
2129 | ||
2130 | case SNDCTL_DSP_GETTRIGGER: | |
2131 | val = 0; | |
2132 | if (file->f_mode & s->ena & FMODE_READ) | |
2133 | val |= PCM_ENABLE_INPUT; | |
2134 | if (file->f_mode & s->ena & FMODE_WRITE) | |
2135 | val |= PCM_ENABLE_OUTPUT; | |
2136 | return put_user(val, (int *) arg); | |
2137 | ||
2138 | case SNDCTL_DSP_SETTRIGGER: | |
2139 | if (get_user(val, (int *) arg)) | |
2140 | return -EFAULT; | |
2141 | if (file->f_mode & FMODE_READ) { | |
2142 | if (val & PCM_ENABLE_INPUT) { | |
2143 | if (!s->dma_adc.ready | |
2144 | && (ret = prog_dmabuf_adc(s))) | |
2145 | return ret; | |
2146 | start_adc(s); | |
2147 | } else | |
2148 | stop_adc(s); | |
2149 | } | |
2150 | if (file->f_mode & FMODE_WRITE) { | |
2151 | if (val & PCM_ENABLE_OUTPUT) { | |
2152 | if (!s->dma_dac.ready | |
2153 | && (ret = prog_dmabuf_dac(s))) | |
2154 | return ret; | |
2155 | start_dac(s); | |
2156 | } else | |
2157 | stop_dac(s); | |
2158 | } | |
2159 | return 0; | |
2160 | ||
2161 | case SNDCTL_DSP_GETOSPACE: | |
2162 | if (!(file->f_mode & FMODE_WRITE)) | |
2163 | return -EINVAL; | |
2164 | if (!s->dma_dac.ready && (val = prog_dmabuf_dac(s))) | |
2165 | return val; | |
2166 | spin_lock_irqsave(&s->lock, flags); | |
2167 | cs4297a_update_ptr(s,CS_FALSE); | |
2168 | abinfo.fragsize = s->dma_dac.fragsize; | |
2169 | if (s->dma_dac.mapped) | |
2170 | abinfo.bytes = s->dma_dac.sbufsz; | |
2171 | else | |
2172 | abinfo.bytes = | |
2173 | s->dma_dac.sbufsz - s->dma_dac.count; | |
2174 | abinfo.fragstotal = s->dma_dac.numfrag; | |
2175 | abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift; | |
2176 | CS_DBGOUT(CS_FUNCTION | CS_PARMS, 4, printk(KERN_INFO | |
2177 | "cs4297a: cs4297a_ioctl(): GETOSPACE .fragsize=%d .bytes=%d .fragstotal=%d .fragments=%d\n", | |
2178 | abinfo.fragsize,abinfo.bytes,abinfo.fragstotal, | |
2179 | abinfo.fragments)); | |
2180 | spin_unlock_irqrestore(&s->lock, flags); | |
2181 | return copy_to_user((void *) arg, &abinfo, | |
2182 | sizeof(abinfo)) ? -EFAULT : 0; | |
2183 | ||
2184 | case SNDCTL_DSP_GETISPACE: | |
2185 | if (!(file->f_mode & FMODE_READ)) | |
2186 | return -EINVAL; | |
2187 | if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s))) | |
2188 | return val; | |
2189 | spin_lock_irqsave(&s->lock, flags); | |
2190 | cs4297a_update_ptr(s,CS_FALSE); | |
2191 | if (s->conversion) { | |
2192 | abinfo.fragsize = s->dma_adc.fragsize / 2; | |
2193 | abinfo.bytes = s->dma_adc.count / 2; | |
2194 | abinfo.fragstotal = s->dma_adc.numfrag; | |
2195 | abinfo.fragments = | |
2196 | abinfo.bytes >> (s->dma_adc.fragshift - 1); | |
2197 | } else { | |
2198 | abinfo.fragsize = s->dma_adc.fragsize; | |
2199 | abinfo.bytes = s->dma_adc.count; | |
2200 | abinfo.fragstotal = s->dma_adc.numfrag; | |
2201 | abinfo.fragments = | |
2202 | abinfo.bytes >> s->dma_adc.fragshift; | |
2203 | } | |
2204 | spin_unlock_irqrestore(&s->lock, flags); | |
2205 | return copy_to_user((void *) arg, &abinfo, | |
2206 | sizeof(abinfo)) ? -EFAULT : 0; | |
2207 | ||
2208 | case SNDCTL_DSP_NONBLOCK: | |
db1dd4d3 | 2209 | spin_lock(&file->f_lock); |
1da177e4 | 2210 | file->f_flags |= O_NONBLOCK; |
db1dd4d3 | 2211 | spin_unlock(&file->f_lock); |
1da177e4 LT |
2212 | return 0; |
2213 | ||
2214 | case SNDCTL_DSP_GETODELAY: | |
2215 | if (!(file->f_mode & FMODE_WRITE)) | |
2216 | return -EINVAL; | |
2217 | if(!s->dma_dac.ready && prog_dmabuf_dac(s)) | |
2218 | return 0; | |
2219 | spin_lock_irqsave(&s->lock, flags); | |
2220 | cs4297a_update_ptr(s,CS_FALSE); | |
2221 | val = s->dma_dac.count; | |
2222 | spin_unlock_irqrestore(&s->lock, flags); | |
2223 | return put_user(val, (int *) arg); | |
2224 | ||
2225 | case SNDCTL_DSP_GETIPTR: | |
2226 | if (!(file->f_mode & FMODE_READ)) | |
2227 | return -EINVAL; | |
2228 | if(!s->dma_adc.ready && prog_dmabuf_adc(s)) | |
2229 | return 0; | |
2230 | spin_lock_irqsave(&s->lock, flags); | |
2231 | cs4297a_update_ptr(s,CS_FALSE); | |
2232 | cinfo.bytes = s->dma_adc.total_bytes; | |
2233 | if (s->dma_adc.mapped) { | |
2234 | cinfo.blocks = | |
2235 | (cinfo.bytes >> s->dma_adc.fragshift) - | |
2236 | s->dma_adc.blocks; | |
2237 | s->dma_adc.blocks = | |
2238 | cinfo.bytes >> s->dma_adc.fragshift; | |
2239 | } else { | |
2240 | if (s->conversion) { | |
2241 | cinfo.blocks = | |
2242 | s->dma_adc.count / | |
2243 | 2 >> (s->dma_adc.fragshift - 1); | |
2244 | } else | |
2245 | cinfo.blocks = | |
2246 | s->dma_adc.count >> s->dma_adc. | |
2247 | fragshift; | |
2248 | } | |
2249 | if (s->conversion) | |
2250 | cinfo.ptr = s->dma_adc.hwptr / 2; | |
2251 | else | |
2252 | cinfo.ptr = s->dma_adc.hwptr; | |
2253 | if (s->dma_adc.mapped) | |
2254 | s->dma_adc.count &= s->dma_adc.fragsize - 1; | |
2255 | spin_unlock_irqrestore(&s->lock, flags); | |
2256 | return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; | |
2257 | ||
2258 | case SNDCTL_DSP_GETOPTR: | |
2259 | if (!(file->f_mode & FMODE_WRITE)) | |
2260 | return -EINVAL; | |
2261 | if(!s->dma_dac.ready && prog_dmabuf_dac(s)) | |
2262 | return 0; | |
2263 | spin_lock_irqsave(&s->lock, flags); | |
2264 | cs4297a_update_ptr(s,CS_FALSE); | |
2265 | cinfo.bytes = s->dma_dac.total_bytes; | |
2266 | if (s->dma_dac.mapped) { | |
2267 | cinfo.blocks = | |
2268 | (cinfo.bytes >> s->dma_dac.fragshift) - | |
2269 | s->dma_dac.blocks; | |
2270 | s->dma_dac.blocks = | |
2271 | cinfo.bytes >> s->dma_dac.fragshift; | |
2272 | } else { | |
2273 | cinfo.blocks = | |
2274 | s->dma_dac.count >> s->dma_dac.fragshift; | |
2275 | } | |
2276 | cinfo.ptr = s->dma_dac.hwptr; | |
2277 | if (s->dma_dac.mapped) | |
2278 | s->dma_dac.count &= s->dma_dac.fragsize - 1; | |
2279 | spin_unlock_irqrestore(&s->lock, flags); | |
2280 | return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; | |
2281 | ||
2282 | case SNDCTL_DSP_GETBLKSIZE: | |
2283 | if (file->f_mode & FMODE_WRITE) { | |
2284 | if ((val = prog_dmabuf_dac(s))) | |
2285 | return val; | |
2286 | return put_user(s->dma_dac.fragsize, (int *) arg); | |
2287 | } | |
2288 | if ((val = prog_dmabuf_adc(s))) | |
2289 | return val; | |
2290 | if (s->conversion) | |
2291 | return put_user(s->dma_adc.fragsize / 2, | |
2292 | (int *) arg); | |
2293 | else | |
2294 | return put_user(s->dma_adc.fragsize, (int *) arg); | |
2295 | ||
2296 | case SNDCTL_DSP_SETFRAGMENT: | |
2297 | if (get_user(val, (int *) arg)) | |
2298 | return -EFAULT; | |
2299 | return 0; // Say OK, but do nothing. | |
2300 | ||
2301 | case SNDCTL_DSP_SUBDIVIDE: | |
2302 | if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) | |
2303 | || (file->f_mode & FMODE_WRITE | |
2304 | && s->dma_dac.subdivision)) return -EINVAL; | |
2305 | if (get_user(val, (int *) arg)) | |
2306 | return -EFAULT; | |
2307 | if (val != 1 && val != 2 && val != 4) | |
2308 | return -EINVAL; | |
2309 | if (file->f_mode & FMODE_READ) | |
2310 | s->dma_adc.subdivision = val; | |
2311 | else if (file->f_mode & FMODE_WRITE) | |
2312 | s->dma_dac.subdivision = val; | |
2313 | return 0; | |
2314 | ||
2315 | case SOUND_PCM_READ_RATE: | |
2316 | if (file->f_mode & FMODE_READ) | |
2317 | return put_user(s->prop_adc.rate, (int *) arg); | |
2318 | else if (file->f_mode & FMODE_WRITE) | |
2319 | return put_user(s->prop_dac.rate, (int *) arg); | |
2320 | ||
2321 | case SOUND_PCM_READ_CHANNELS: | |
2322 | if (file->f_mode & FMODE_READ) | |
2323 | return put_user(s->prop_adc.channels, (int *) arg); | |
2324 | else if (file->f_mode & FMODE_WRITE) | |
2325 | return put_user(s->prop_dac.channels, (int *) arg); | |
2326 | ||
2327 | case SOUND_PCM_READ_BITS: | |
2328 | if (file->f_mode & FMODE_READ) | |
2329 | return | |
2330 | put_user( | |
2331 | (s->prop_adc. | |
2332 | fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, | |
2333 | (int *) arg); | |
2334 | else if (file->f_mode & FMODE_WRITE) | |
2335 | return | |
2336 | put_user( | |
2337 | (s->prop_dac. | |
2338 | fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, | |
2339 | (int *) arg); | |
2340 | ||
2341 | case SOUND_PCM_WRITE_FILTER: | |
2342 | case SNDCTL_DSP_SETSYNCRO: | |
2343 | case SOUND_PCM_READ_FILTER: | |
2344 | return -EINVAL; | |
2345 | } | |
2346 | return mixer_ioctl(s, cmd, arg); | |
2347 | } | |
2348 | ||
d209974c AB |
2349 | static long cs4297a_unlocked_ioctl(struct file *file, u_int cmd, u_long arg) |
2350 | { | |
2351 | int ret; | |
2352 | ||
645ef9ef | 2353 | mutex_lock(&swarm_cs4297a_mutex); |
d209974c | 2354 | ret = cs4297a_ioctl(file, cmd, arg); |
645ef9ef | 2355 | mutex_unlock(&swarm_cs4297a_mutex); |
d209974c AB |
2356 | |
2357 | return ret; | |
2358 | } | |
1da177e4 LT |
2359 | |
2360 | static int cs4297a_release(struct inode *inode, struct file *file) | |
2361 | { | |
2362 | struct cs4297a_state *s = | |
2363 | (struct cs4297a_state *) file->private_data; | |
2364 | ||
2365 | CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk(KERN_INFO | |
2366 | "cs4297a: cs4297a_release(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", | |
2367 | (unsigned) inode, (unsigned) file, file->f_mode)); | |
2368 | VALIDATE_STATE(s); | |
2369 | ||
2370 | if (file->f_mode & FMODE_WRITE) { | |
2371 | drain_dac(s, file->f_flags & O_NONBLOCK); | |
910f5d20 | 2372 | mutex_lock(&s->open_sem_dac); |
1da177e4 LT |
2373 | stop_dac(s); |
2374 | dealloc_dmabuf(s, &s->dma_dac); | |
2375 | s->open_mode &= ~FMODE_WRITE; | |
910f5d20 | 2376 | mutex_unlock(&s->open_sem_dac); |
1da177e4 LT |
2377 | wake_up(&s->open_wait_dac); |
2378 | } | |
2379 | if (file->f_mode & FMODE_READ) { | |
2380 | drain_adc(s, file->f_flags & O_NONBLOCK); | |
910f5d20 | 2381 | mutex_lock(&s->open_sem_adc); |
1da177e4 LT |
2382 | stop_adc(s); |
2383 | dealloc_dmabuf(s, &s->dma_adc); | |
2384 | s->open_mode &= ~FMODE_READ; | |
910f5d20 | 2385 | mutex_unlock(&s->open_sem_adc); |
1da177e4 LT |
2386 | wake_up(&s->open_wait_adc); |
2387 | } | |
2388 | return 0; | |
2389 | } | |
2390 | ||
90dc763f | 2391 | static int cs4297a_locked_open(struct inode *inode, struct file *file) |
1da177e4 LT |
2392 | { |
2393 | int minor = iminor(inode); | |
2394 | struct cs4297a_state *s=NULL; | |
2395 | struct list_head *entry; | |
2396 | ||
2397 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO | |
2398 | "cs4297a: cs4297a_open(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", | |
2399 | (unsigned) inode, (unsigned) file, file->f_mode)); | |
2400 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO | |
2401 | "cs4297a: status = %08x\n", (int)__raw_readq(SS_CSR(R_SER_STATUS_DEBUG)))); | |
2402 | ||
2403 | list_for_each(entry, &cs4297a_devs) | |
2404 | { | |
2405 | s = list_entry(entry, struct cs4297a_state, list); | |
2406 | ||
2407 | if (!((s->dev_audio ^ minor) & ~0xf)) | |
2408 | break; | |
2409 | } | |
2410 | if (entry == &cs4297a_devs) | |
2411 | return -ENODEV; | |
2412 | if (!s) { | |
2413 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO | |
2414 | "cs4297a: cs4297a_open(): Error - unable to find audio state struct\n")); | |
2415 | return -ENODEV; | |
2416 | } | |
2417 | VALIDATE_STATE(s); | |
2418 | file->private_data = s; | |
2419 | ||
2420 | // wait for device to become free | |
2421 | if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) { | |
2422 | CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, printk(KERN_INFO | |
2423 | "cs4297a: cs4297a_open(): Error - must open READ and/or WRITE\n")); | |
2424 | return -ENODEV; | |
2425 | } | |
2426 | if (file->f_mode & FMODE_WRITE) { | |
2427 | if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX)) != 0) { | |
2428 | printk(KERN_ERR "cs4297a: TX pipe needs to drain\n"); | |
2429 | while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) | |
2430 | ; | |
2431 | } | |
2432 | ||
910f5d20 | 2433 | mutex_lock(&s->open_sem_dac); |
1da177e4 LT |
2434 | while (s->open_mode & FMODE_WRITE) { |
2435 | if (file->f_flags & O_NONBLOCK) { | |
910f5d20 | 2436 | mutex_unlock(&s->open_sem_dac); |
1da177e4 LT |
2437 | return -EBUSY; |
2438 | } | |
910f5d20 | 2439 | mutex_unlock(&s->open_sem_dac); |
1da177e4 LT |
2440 | interruptible_sleep_on(&s->open_wait_dac); |
2441 | ||
2442 | if (signal_pending(current)) { | |
2443 | printk("open - sig pending\n"); | |
2444 | return -ERESTARTSYS; | |
2445 | } | |
910f5d20 | 2446 | mutex_lock(&s->open_sem_dac); |
1da177e4 LT |
2447 | } |
2448 | } | |
2449 | if (file->f_mode & FMODE_READ) { | |
910f5d20 | 2450 | mutex_lock(&s->open_sem_adc); |
1da177e4 LT |
2451 | while (s->open_mode & FMODE_READ) { |
2452 | if (file->f_flags & O_NONBLOCK) { | |
910f5d20 | 2453 | mutex_unlock(&s->open_sem_adc); |
1da177e4 LT |
2454 | return -EBUSY; |
2455 | } | |
910f5d20 | 2456 | mutex_unlock(&s->open_sem_adc); |
1da177e4 LT |
2457 | interruptible_sleep_on(&s->open_wait_adc); |
2458 | ||
2459 | if (signal_pending(current)) { | |
2460 | printk("open - sig pending\n"); | |
2461 | return -ERESTARTSYS; | |
2462 | } | |
910f5d20 | 2463 | mutex_lock(&s->open_sem_adc); |
1da177e4 LT |
2464 | } |
2465 | } | |
2466 | s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); | |
2467 | if (file->f_mode & FMODE_READ) { | |
2468 | s->prop_adc.fmt = AFMT_S16_BE; | |
2469 | s->prop_adc.fmt_original = s->prop_adc.fmt; | |
2470 | s->prop_adc.channels = 2; | |
2471 | s->prop_adc.rate = 48000; | |
2472 | s->conversion = 0; | |
2473 | s->ena &= ~FMODE_READ; | |
2474 | s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = | |
2475 | s->dma_adc.subdivision = 0; | |
910f5d20 | 2476 | mutex_unlock(&s->open_sem_adc); |
1da177e4 LT |
2477 | |
2478 | if (prog_dmabuf_adc(s)) { | |
2479 | CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR | |
2480 | "cs4297a: adc Program dmabufs failed.\n")); | |
2481 | cs4297a_release(inode, file); | |
2482 | return -ENOMEM; | |
2483 | } | |
2484 | } | |
2485 | if (file->f_mode & FMODE_WRITE) { | |
2486 | s->prop_dac.fmt = AFMT_S16_BE; | |
2487 | s->prop_dac.fmt_original = s->prop_dac.fmt; | |
2488 | s->prop_dac.channels = 2; | |
2489 | s->prop_dac.rate = 48000; | |
2490 | s->conversion = 0; | |
2491 | s->ena &= ~FMODE_WRITE; | |
2492 | s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = | |
2493 | s->dma_dac.subdivision = 0; | |
910f5d20 | 2494 | mutex_unlock(&s->open_sem_dac); |
1da177e4 LT |
2495 | |
2496 | if (prog_dmabuf_dac(s)) { | |
2497 | CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR | |
2498 | "cs4297a: dac Program dmabufs failed.\n")); | |
2499 | cs4297a_release(inode, file); | |
2500 | return -ENOMEM; | |
2501 | } | |
2502 | } | |
2503 | CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, | |
2504 | printk(KERN_INFO "cs4297a: cs4297a_open()- 0\n")); | |
2505 | return nonseekable_open(inode, file); | |
2506 | } | |
2507 | ||
90dc763f AB |
2508 | static int cs4297a_open(struct inode *inode, struct file *file) |
2509 | { | |
2510 | int ret; | |
2511 | ||
645ef9ef | 2512 | mutex_lock(&swarm_cs4297a_mutex); |
90dc763f | 2513 | ret = cs4297a_open(inode, file); |
645ef9ef | 2514 | mutex_unlock(&swarm_cs4297a_mutex); |
90dc763f AB |
2515 | |
2516 | return ret; | |
2517 | } | |
1da177e4 LT |
2518 | |
2519 | // ****************************************************************************************** | |
2520 | // Wave (audio) file operations struct. | |
2521 | // ****************************************************************************************** | |
c8cece84 | 2522 | static const struct file_operations cs4297a_audio_fops = { |
1da177e4 LT |
2523 | .owner = THIS_MODULE, |
2524 | .llseek = no_llseek, | |
2525 | .read = cs4297a_read, | |
2526 | .write = cs4297a_write, | |
2527 | .poll = cs4297a_poll, | |
d209974c | 2528 | .unlocked_ioctl = cs4297a_unlocked_ioctl, |
1da177e4 LT |
2529 | .mmap = cs4297a_mmap, |
2530 | .open = cs4297a_open, | |
2531 | .release = cs4297a_release, | |
2532 | }; | |
2533 | ||
7d12e780 | 2534 | static void cs4297a_interrupt(int irq, void *dev_id) |
1da177e4 LT |
2535 | { |
2536 | struct cs4297a_state *s = (struct cs4297a_state *) dev_id; | |
2537 | u32 status; | |
2538 | ||
2539 | status = __raw_readq(SS_CSR(R_SER_STATUS_DEBUG)); | |
2540 | ||
2541 | CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO | |
2542 | "cs4297a: cs4297a_interrupt() HISR=0x%.8x\n", status)); | |
2543 | ||
2544 | #if 0 | |
2545 | /* XXXKW what check *should* be done here? */ | |
2546 | if (!(status & (M_SYNCSER_RX_EOP_COUNT | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_SYNC_ERR))) { | |
2547 | status = __raw_readq(SS_CSR(R_SER_STATUS)); | |
2548 | printk(KERN_ERR "cs4297a: unexpected interrupt (status %08x)\n", status); | |
2549 | return; | |
2550 | } | |
2551 | #endif | |
2552 | ||
2553 | if (status & M_SYNCSER_RX_SYNC_ERR) { | |
2554 | status = __raw_readq(SS_CSR(R_SER_STATUS)); | |
2555 | printk(KERN_ERR "cs4297a: rx sync error (status %08x)\n", status); | |
2556 | return; | |
2557 | } | |
2558 | ||
2559 | if (status & M_SYNCSER_RX_OVERRUN) { | |
2560 | int newptr, i; | |
2561 | s->stats.rx_ovrrn++; | |
2562 | printk(KERN_ERR "cs4297a: receive FIFO overrun\n"); | |
2563 | ||
2564 | /* Fix things up: get the receive descriptor pool | |
2565 | clean and give them back to the hardware */ | |
2566 | while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))) | |
2567 | ; | |
2568 | newptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - | |
2569 | s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); | |
2570 | for (i=0; i<DMA_DESCR; i++) { | |
2571 | s->dma_adc.descrtab[i].descr_a &= ~M_DMA_SERRX_SOP; | |
2572 | } | |
2573 | s->dma_adc.swptr = s->dma_adc.hwptr = newptr; | |
2574 | s->dma_adc.count = 0; | |
2575 | s->dma_adc.sb_swptr = s->dma_adc.sb_hwptr = s->dma_adc.sample_buf; | |
2576 | __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); | |
2577 | } | |
2578 | ||
2579 | spin_lock(&s->lock); | |
2580 | cs4297a_update_ptr(s,CS_TRUE); | |
2581 | spin_unlock(&s->lock); | |
2582 | ||
2583 | CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO | |
2584 | "cs4297a: cs4297a_interrupt()-\n")); | |
2585 | } | |
2586 | ||
2587 | #if 0 | |
2588 | static struct initvol { | |
2589 | int mixch; | |
2590 | int vol; | |
2591 | } initvol[] __initdata = { | |
2592 | ||
2593 | {SOUND_MIXER_WRITE_VOLUME, 0x4040}, | |
2594 | {SOUND_MIXER_WRITE_PCM, 0x4040}, | |
2595 | {SOUND_MIXER_WRITE_SYNTH, 0x4040}, | |
2596 | {SOUND_MIXER_WRITE_CD, 0x4040}, | |
2597 | {SOUND_MIXER_WRITE_LINE, 0x4040}, | |
2598 | {SOUND_MIXER_WRITE_LINE1, 0x4040}, | |
2599 | {SOUND_MIXER_WRITE_RECLEV, 0x0000}, | |
2600 | {SOUND_MIXER_WRITE_SPEAKER, 0x4040}, | |
2601 | {SOUND_MIXER_WRITE_MIC, 0x0000} | |
2602 | }; | |
2603 | #endif | |
2604 | ||
2605 | static int __init cs4297a_init(void) | |
2606 | { | |
2607 | struct cs4297a_state *s; | |
2608 | u32 pwr, id; | |
2609 | mm_segment_t fs; | |
2610 | int rval; | |
2611 | #ifndef CONFIG_BCM_CS4297A_CSWARM | |
2612 | u64 cfg; | |
2613 | int mdio_val; | |
2614 | #endif | |
2615 | ||
2616 | CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO | |
2617 | "cs4297a: cs4297a_init_module()+ \n")); | |
2618 | ||
2619 | #ifndef CONFIG_BCM_CS4297A_CSWARM | |
2620 | mdio_val = __raw_readq(KSEG1 + A_MAC_REGISTER(2, R_MAC_MDIO)) & | |
2621 | (M_MAC_MDIO_DIR|M_MAC_MDIO_OUT); | |
2622 | ||
2623 | /* Check syscfg for synchronous serial on port 1 */ | |
2624 | cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); | |
2625 | if (!(cfg & M_SYS_SER1_ENABLE)) { | |
2626 | __raw_writeq(cfg | M_SYS_SER1_ENABLE, KSEG1+A_SCD_SYSTEM_CFG); | |
2627 | cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); | |
2628 | if (!(cfg & M_SYS_SER1_ENABLE)) { | |
2629 | printk(KERN_INFO "cs4297a: serial port 1 not configured for synchronous operation\n"); | |
2630 | return -1; | |
2631 | } | |
2632 | ||
2633 | printk(KERN_INFO "cs4297a: serial port 1 switching to synchronous operation\n"); | |
2634 | ||
2635 | /* Force the codec (on SWARM) to reset by clearing | |
2636 | GENO, preserving MDIO (no effect on CSWARM) */ | |
2637 | __raw_writeq(mdio_val, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); | |
2638 | udelay(10); | |
2639 | } | |
2640 | ||
2641 | /* Now set GENO */ | |
2642 | __raw_writeq(mdio_val | M_MAC_GENC, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); | |
2643 | /* Give the codec some time to finish resetting (start the bit clock) */ | |
2644 | udelay(100); | |
2645 | #endif | |
2646 | ||
3159f06d | 2647 | if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) { |
1da177e4 LT |
2648 | CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR |
2649 | "cs4297a: probe() no memory for state struct.\n")); | |
2650 | return -1; | |
2651 | } | |
1da177e4 LT |
2652 | s->magic = CS4297a_MAGIC; |
2653 | init_waitqueue_head(&s->dma_adc.wait); | |
2654 | init_waitqueue_head(&s->dma_dac.wait); | |
2655 | init_waitqueue_head(&s->dma_adc.reg_wait); | |
2656 | init_waitqueue_head(&s->dma_dac.reg_wait); | |
2657 | init_waitqueue_head(&s->open_wait); | |
2658 | init_waitqueue_head(&s->open_wait_adc); | |
2659 | init_waitqueue_head(&s->open_wait_dac); | |
910f5d20 IM |
2660 | mutex_init(&s->open_sem_adc); |
2661 | mutex_init(&s->open_sem_dac); | |
1da177e4 LT |
2662 | spin_lock_init(&s->lock); |
2663 | ||
2664 | s->irq = K_INT_SER_1; | |
2665 | ||
2666 | if (request_irq | |
2667 | (s->irq, cs4297a_interrupt, 0, "Crystal CS4297a", s)) { | |
2668 | CS_DBGOUT(CS_INIT | CS_ERROR, 1, | |
2669 | printk(KERN_ERR "cs4297a: irq %u in use\n", s->irq)); | |
2670 | goto err_irq; | |
2671 | } | |
2672 | if ((s->dev_audio = register_sound_dsp(&cs4297a_audio_fops, -1)) < | |
2673 | 0) { | |
2674 | CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR | |
2675 | "cs4297a: probe() register_sound_dsp() failed.\n")); | |
2676 | goto err_dev1; | |
2677 | } | |
2678 | if ((s->dev_mixer = register_sound_mixer(&cs4297a_mixer_fops, -1)) < | |
2679 | 0) { | |
2680 | CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR | |
2681 | "cs4297a: probe() register_sound_mixer() failed.\n")); | |
2682 | goto err_dev2; | |
2683 | } | |
2684 | ||
2685 | if (ser_init(s) || dma_init(s)) { | |
2686 | CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR | |
2687 | "cs4297a: ser_init failed.\n")); | |
2688 | goto err_dev3; | |
2689 | } | |
2690 | ||
2691 | do { | |
2692 | udelay(4000); | |
2693 | rval = cs4297a_read_ac97(s, AC97_POWER_CONTROL, &pwr); | |
2694 | } while (!rval && (pwr != 0xf)); | |
2695 | ||
2696 | if (!rval) { | |
2697 | char *sb1250_duart_present; | |
2698 | ||
2699 | fs = get_fs(); | |
2700 | set_fs(KERNEL_DS); | |
2701 | #if 0 | |
2702 | val = SOUND_MASK_LINE; | |
2703 | mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val); | |
8b5925fd | 2704 | for (i = 0; i < ARRAY_SIZE(initvol); i++) { |
1da177e4 LT |
2705 | val = initvol[i].vol; |
2706 | mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val); | |
2707 | } | |
2708 | // cs4297a_write_ac97(s, 0x18, 0x0808); | |
2709 | #else | |
2710 | // cs4297a_write_ac97(s, 0x5e, 0x180); | |
2711 | cs4297a_write_ac97(s, 0x02, 0x0808); | |
2712 | cs4297a_write_ac97(s, 0x18, 0x0808); | |
2713 | #endif | |
2714 | set_fs(fs); | |
2715 | ||
2716 | list_add(&s->list, &cs4297a_devs); | |
2717 | ||
2718 | cs4297a_read_ac97(s, AC97_VENDOR_ID1, &id); | |
2719 | ||
2720 | sb1250_duart_present = symbol_get(sb1250_duart_present); | |
2721 | if (sb1250_duart_present) | |
2722 | sb1250_duart_present[1] = 0; | |
2723 | ||
2724 | printk(KERN_INFO "cs4297a: initialized (vendor id = %x)\n", id); | |
2725 | ||
2726 | CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, | |
2727 | printk(KERN_INFO "cs4297a: cs4297a_init_module()-\n")); | |
2728 | ||
2729 | return 0; | |
2730 | } | |
2731 | ||
2732 | err_dev3: | |
2733 | unregister_sound_mixer(s->dev_mixer); | |
2734 | err_dev2: | |
2735 | unregister_sound_dsp(s->dev_audio); | |
2736 | err_dev1: | |
2737 | free_irq(s->irq, s); | |
2738 | err_irq: | |
2739 | kfree(s); | |
2740 | ||
2741 | printk(KERN_INFO "cs4297a: initialization failed\n"); | |
2742 | ||
2743 | return -1; | |
2744 | } | |
2745 | ||
2746 | static void __exit cs4297a_cleanup(void) | |
2747 | { | |
2748 | /* | |
2749 | XXXKW | |
2750 | disable_irq, free_irq | |
2751 | drain DMA queue | |
2752 | disable DMA | |
2753 | disable TX/RX | |
2754 | free memory | |
2755 | */ | |
2756 | CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, | |
2757 | printk(KERN_INFO "cs4297a: cleanup_cs4297a() finished\n")); | |
2758 | } | |
2759 | ||
2760 | // --------------------------------------------------------------------- | |
2761 | ||
2762 | MODULE_AUTHOR("Kip Walker, Broadcom Corp."); | |
2763 | MODULE_DESCRIPTION("Cirrus Logic CS4297a Driver for Broadcom SWARM board"); | |
2764 | ||
2765 | // --------------------------------------------------------------------- | |
2766 | ||
2767 | module_init(cs4297a_init); | |
2768 | module_exit(cs4297a_cleanup); |