xref: /linux/sound/pci/maestro3.c (revision ccea15f45eb0ab12d658f88b5d4be005cb2bb1a7)
1 /*
2  * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
3  * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
4  *                       Takashi Iwai <tiwai@suse.de>
5  *
6  * Most of the hardware init stuffs are based on maestro3 driver for
7  * OSS/Free by Zach Brown.  Many thanks to Zach!
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  *
24  * ChangeLog:
25  * Aug. 27, 2001
26  *     - Fixed deadlock on capture
27  *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
28  *
29  */
30 
31 #define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
32 #define DRIVER_NAME "Maestro3"
33 
34 #include <sound/driver.h>
35 #include <asm/io.h>
36 #include <linux/delay.h>
37 #include <linux/interrupt.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/dma-mapping.h>
41 #include <linux/slab.h>
42 #include <linux/vmalloc.h>
43 #include <linux/moduleparam.h>
44 #include <linux/dma-mapping.h>
45 #include <sound/core.h>
46 #include <sound/info.h>
47 #include <sound/control.h>
48 #include <sound/pcm.h>
49 #include <sound/mpu401.h>
50 #include <sound/ac97_codec.h>
51 #include <sound/initval.h>
52 
53 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
54 MODULE_DESCRIPTION("ESS Maestro3 PCI");
55 MODULE_LICENSE("GPL");
56 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
57 		"{ESS,ES1988},"
58 		"{ESS,Allegro PCI},"
59 		"{ESS,Allegro-1 PCI},"
60 	        "{ESS,Canyon3D-2/LE PCI}}");
61 
62 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
63 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
64 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
65 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
66 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
67 
68 module_param_array(index, int, NULL, 0444);
69 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
70 module_param_array(id, charp, NULL, 0444);
71 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
72 module_param_array(enable, bool, NULL, 0444);
73 MODULE_PARM_DESC(enable, "Enable this soundcard.");
74 module_param_array(external_amp, bool, NULL, 0444);
75 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
76 module_param_array(amp_gpio, int, NULL, 0444);
77 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
78 
79 #define MAX_PLAYBACKS	2
80 #define MAX_CAPTURES	1
81 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
82 
83 
84 /*
85  * maestro3 registers
86  */
87 
88 /* Allegro PCI configuration registers */
89 #define PCI_LEGACY_AUDIO_CTRL   0x40
90 #define SOUND_BLASTER_ENABLE    0x00000001
91 #define FM_SYNTHESIS_ENABLE     0x00000002
92 #define GAME_PORT_ENABLE        0x00000004
93 #define MPU401_IO_ENABLE        0x00000008
94 #define MPU401_IRQ_ENABLE       0x00000010
95 #define ALIAS_10BIT_IO          0x00000020
96 #define SB_DMA_MASK             0x000000C0
97 #define SB_DMA_0                0x00000040
98 #define SB_DMA_1                0x00000040
99 #define SB_DMA_R                0x00000080
100 #define SB_DMA_3                0x000000C0
101 #define SB_IRQ_MASK             0x00000700
102 #define SB_IRQ_5                0x00000000
103 #define SB_IRQ_7                0x00000100
104 #define SB_IRQ_9                0x00000200
105 #define SB_IRQ_10               0x00000300
106 #define MIDI_IRQ_MASK           0x00003800
107 #define SERIAL_IRQ_ENABLE       0x00004000
108 #define DISABLE_LEGACY          0x00008000
109 
110 #define PCI_ALLEGRO_CONFIG      0x50
111 #define SB_ADDR_240             0x00000004
112 #define MPU_ADDR_MASK           0x00000018
113 #define MPU_ADDR_330            0x00000000
114 #define MPU_ADDR_300            0x00000008
115 #define MPU_ADDR_320            0x00000010
116 #define MPU_ADDR_340            0x00000018
117 #define USE_PCI_TIMING          0x00000040
118 #define POSTED_WRITE_ENABLE     0x00000080
119 #define DMA_POLICY_MASK         0x00000700
120 #define DMA_DDMA                0x00000000
121 #define DMA_TDMA                0x00000100
122 #define DMA_PCPCI               0x00000200
123 #define DMA_WBDMA16             0x00000400
124 #define DMA_WBDMA4              0x00000500
125 #define DMA_WBDMA2              0x00000600
126 #define DMA_WBDMA1              0x00000700
127 #define DMA_SAFE_GUARD          0x00000800
128 #define HI_PERF_GP_ENABLE       0x00001000
129 #define PIC_SNOOP_MODE_0        0x00002000
130 #define PIC_SNOOP_MODE_1        0x00004000
131 #define SOUNDBLASTER_IRQ_MASK   0x00008000
132 #define RING_IN_ENABLE          0x00010000
133 #define SPDIF_TEST_MODE         0x00020000
134 #define CLK_MULT_MODE_SELECT_2  0x00040000
135 #define EEPROM_WRITE_ENABLE     0x00080000
136 #define CODEC_DIR_IN            0x00100000
137 #define HV_BUTTON_FROM_GD       0x00200000
138 #define REDUCED_DEBOUNCE        0x00400000
139 #define HV_CTRL_ENABLE          0x00800000
140 #define SPDIF_ENABLE            0x01000000
141 #define CLK_DIV_SELECT          0x06000000
142 #define CLK_DIV_BY_48           0x00000000
143 #define CLK_DIV_BY_49           0x02000000
144 #define CLK_DIV_BY_50           0x04000000
145 #define CLK_DIV_RESERVED        0x06000000
146 #define PM_CTRL_ENABLE          0x08000000
147 #define CLK_MULT_MODE_SELECT    0x30000000
148 #define CLK_MULT_MODE_SHIFT     28
149 #define CLK_MULT_MODE_0         0x00000000
150 #define CLK_MULT_MODE_1         0x10000000
151 #define CLK_MULT_MODE_2         0x20000000
152 #define CLK_MULT_MODE_3         0x30000000
153 #define INT_CLK_SELECT          0x40000000
154 #define INT_CLK_MULT_RESET      0x80000000
155 
156 /* M3 */
157 #define INT_CLK_SRC_NOT_PCI     0x00100000
158 #define INT_CLK_MULT_ENABLE     0x80000000
159 
160 #define PCI_ACPI_CONTROL        0x54
161 #define PCI_ACPI_D0             0x00000000
162 #define PCI_ACPI_D1             0xB4F70000
163 #define PCI_ACPI_D2             0xB4F7B4F7
164 
165 #define PCI_USER_CONFIG         0x58
166 #define EXT_PCI_MASTER_ENABLE   0x00000001
167 #define SPDIF_OUT_SELECT        0x00000002
168 #define TEST_PIN_DIR_CTRL       0x00000004
169 #define AC97_CODEC_TEST         0x00000020
170 #define TRI_STATE_BUFFER        0x00000080
171 #define IN_CLK_12MHZ_SELECT     0x00000100
172 #define MULTI_FUNC_DISABLE      0x00000200
173 #define EXT_MASTER_PAIR_SEL     0x00000400
174 #define PCI_MASTER_SUPPORT      0x00000800
175 #define STOP_CLOCK_ENABLE       0x00001000
176 #define EAPD_DRIVE_ENABLE       0x00002000
177 #define REQ_TRI_STATE_ENABLE    0x00004000
178 #define REQ_LOW_ENABLE          0x00008000
179 #define MIDI_1_ENABLE           0x00010000
180 #define MIDI_2_ENABLE           0x00020000
181 #define SB_AUDIO_SYNC           0x00040000
182 #define HV_CTRL_TEST            0x00100000
183 #define SOUNDBLASTER_TEST       0x00400000
184 
185 #define PCI_USER_CONFIG_C       0x5C
186 
187 #define PCI_DDMA_CTRL           0x60
188 #define DDMA_ENABLE             0x00000001
189 
190 
191 /* Allegro registers */
192 #define HOST_INT_CTRL           0x18
193 #define SB_INT_ENABLE           0x0001
194 #define MPU401_INT_ENABLE       0x0002
195 #define ASSP_INT_ENABLE         0x0010
196 #define RING_INT_ENABLE         0x0020
197 #define HV_INT_ENABLE           0x0040
198 #define CLKRUN_GEN_ENABLE       0x0100
199 #define HV_CTRL_TO_PME          0x0400
200 #define SOFTWARE_RESET_ENABLE   0x8000
201 
202 /*
203  * should be using the above defines, probably.
204  */
205 #define REGB_ENABLE_RESET               0x01
206 #define REGB_STOP_CLOCK                 0x10
207 
208 #define HOST_INT_STATUS         0x1A
209 #define SB_INT_PENDING          0x01
210 #define MPU401_INT_PENDING      0x02
211 #define ASSP_INT_PENDING        0x10
212 #define RING_INT_PENDING        0x20
213 #define HV_INT_PENDING          0x40
214 
215 #define HARDWARE_VOL_CTRL       0x1B
216 #define SHADOW_MIX_REG_VOICE    0x1C
217 #define HW_VOL_COUNTER_VOICE    0x1D
218 #define SHADOW_MIX_REG_MASTER   0x1E
219 #define HW_VOL_COUNTER_MASTER   0x1F
220 
221 #define CODEC_COMMAND           0x30
222 #define CODEC_READ_B            0x80
223 
224 #define CODEC_STATUS            0x30
225 #define CODEC_BUSY_B            0x01
226 
227 #define CODEC_DATA              0x32
228 
229 #define RING_BUS_CTRL_A         0x36
230 #define RAC_PME_ENABLE          0x0100
231 #define RAC_SDFS_ENABLE         0x0200
232 #define LAC_PME_ENABLE          0x0400
233 #define LAC_SDFS_ENABLE         0x0800
234 #define SERIAL_AC_LINK_ENABLE   0x1000
235 #define IO_SRAM_ENABLE          0x2000
236 #define IIS_INPUT_ENABLE        0x8000
237 
238 #define RING_BUS_CTRL_B         0x38
239 #define SECOND_CODEC_ID_MASK    0x0003
240 #define SPDIF_FUNC_ENABLE       0x0010
241 #define SECOND_AC_ENABLE        0x0020
242 #define SB_MODULE_INTF_ENABLE   0x0040
243 #define SSPE_ENABLE             0x0040
244 #define M3I_DOCK_ENABLE         0x0080
245 
246 #define SDO_OUT_DEST_CTRL       0x3A
247 #define COMMAND_ADDR_OUT        0x0003
248 #define PCM_LR_OUT_LOCAL        0x0000
249 #define PCM_LR_OUT_REMOTE       0x0004
250 #define PCM_LR_OUT_MUTE         0x0008
251 #define PCM_LR_OUT_BOTH         0x000C
252 #define LINE1_DAC_OUT_LOCAL     0x0000
253 #define LINE1_DAC_OUT_REMOTE    0x0010
254 #define LINE1_DAC_OUT_MUTE      0x0020
255 #define LINE1_DAC_OUT_BOTH      0x0030
256 #define PCM_CLS_OUT_LOCAL       0x0000
257 #define PCM_CLS_OUT_REMOTE      0x0040
258 #define PCM_CLS_OUT_MUTE        0x0080
259 #define PCM_CLS_OUT_BOTH        0x00C0
260 #define PCM_RLF_OUT_LOCAL       0x0000
261 #define PCM_RLF_OUT_REMOTE      0x0100
262 #define PCM_RLF_OUT_MUTE        0x0200
263 #define PCM_RLF_OUT_BOTH        0x0300
264 #define LINE2_DAC_OUT_LOCAL     0x0000
265 #define LINE2_DAC_OUT_REMOTE    0x0400
266 #define LINE2_DAC_OUT_MUTE      0x0800
267 #define LINE2_DAC_OUT_BOTH      0x0C00
268 #define HANDSET_OUT_LOCAL       0x0000
269 #define HANDSET_OUT_REMOTE      0x1000
270 #define HANDSET_OUT_MUTE        0x2000
271 #define HANDSET_OUT_BOTH        0x3000
272 #define IO_CTRL_OUT_LOCAL       0x0000
273 #define IO_CTRL_OUT_REMOTE      0x4000
274 #define IO_CTRL_OUT_MUTE        0x8000
275 #define IO_CTRL_OUT_BOTH        0xC000
276 
277 #define SDO_IN_DEST_CTRL        0x3C
278 #define STATUS_ADDR_IN          0x0003
279 #define PCM_LR_IN_LOCAL         0x0000
280 #define PCM_LR_IN_REMOTE        0x0004
281 #define PCM_LR_RESERVED         0x0008
282 #define PCM_LR_IN_BOTH          0x000C
283 #define LINE1_ADC_IN_LOCAL      0x0000
284 #define LINE1_ADC_IN_REMOTE     0x0010
285 #define LINE1_ADC_IN_MUTE       0x0020
286 #define MIC_ADC_IN_LOCAL        0x0000
287 #define MIC_ADC_IN_REMOTE       0x0040
288 #define MIC_ADC_IN_MUTE         0x0080
289 #define LINE2_DAC_IN_LOCAL      0x0000
290 #define LINE2_DAC_IN_REMOTE     0x0400
291 #define LINE2_DAC_IN_MUTE       0x0800
292 #define HANDSET_IN_LOCAL        0x0000
293 #define HANDSET_IN_REMOTE       0x1000
294 #define HANDSET_IN_MUTE         0x2000
295 #define IO_STATUS_IN_LOCAL      0x0000
296 #define IO_STATUS_IN_REMOTE     0x4000
297 
298 #define SPDIF_IN_CTRL           0x3E
299 #define SPDIF_IN_ENABLE         0x0001
300 
301 #define GPIO_DATA               0x60
302 #define GPIO_DATA_MASK          0x0FFF
303 #define GPIO_HV_STATUS          0x3000
304 #define GPIO_PME_STATUS         0x4000
305 
306 #define GPIO_MASK               0x64
307 #define GPIO_DIRECTION          0x68
308 #define GPO_PRIMARY_AC97        0x0001
309 #define GPI_LINEOUT_SENSE       0x0004
310 #define GPO_SECONDARY_AC97      0x0008
311 #define GPI_VOL_DOWN            0x0010
312 #define GPI_VOL_UP              0x0020
313 #define GPI_IIS_CLK             0x0040
314 #define GPI_IIS_LRCLK           0x0080
315 #define GPI_IIS_DATA            0x0100
316 #define GPI_DOCKING_STATUS      0x0100
317 #define GPI_HEADPHONE_SENSE     0x0200
318 #define GPO_EXT_AMP_SHUTDOWN    0x1000
319 
320 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
321 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
322 
323 /* M3 */
324 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
325 
326 #define ASSP_INDEX_PORT         0x80
327 #define ASSP_MEMORY_PORT        0x82
328 #define ASSP_DATA_PORT          0x84
329 
330 #define MPU401_DATA_PORT        0x98
331 #define MPU401_STATUS_PORT      0x99
332 
333 #define CLK_MULT_DATA_PORT      0x9C
334 
335 #define ASSP_CONTROL_A          0xA2
336 #define ASSP_0_WS_ENABLE        0x01
337 #define ASSP_CTRL_A_RESERVED1   0x02
338 #define ASSP_CTRL_A_RESERVED2   0x04
339 #define ASSP_CLK_49MHZ_SELECT   0x08
340 #define FAST_PLU_ENABLE         0x10
341 #define ASSP_CTRL_A_RESERVED3   0x20
342 #define DSP_CLK_36MHZ_SELECT    0x40
343 
344 #define ASSP_CONTROL_B          0xA4
345 #define RESET_ASSP              0x00
346 #define RUN_ASSP                0x01
347 #define ENABLE_ASSP_CLOCK       0x00
348 #define STOP_ASSP_CLOCK         0x10
349 #define RESET_TOGGLE            0x40
350 
351 #define ASSP_CONTROL_C          0xA6
352 #define ASSP_HOST_INT_ENABLE    0x01
353 #define FM_ADDR_REMAP_DISABLE   0x02
354 #define HOST_WRITE_PORT_ENABLE  0x08
355 
356 #define ASSP_HOST_INT_STATUS    0xAC
357 #define DSP2HOST_REQ_PIORECORD  0x01
358 #define DSP2HOST_REQ_I2SRATE    0x02
359 #define DSP2HOST_REQ_TIMER      0x04
360 
361 /* AC97 registers */
362 /* XXX fix this crap up */
363 /*#define AC97_RESET              0x00*/
364 
365 #define AC97_VOL_MUTE_B         0x8000
366 #define AC97_VOL_M              0x1F
367 #define AC97_LEFT_VOL_S         8
368 
369 #define AC97_MASTER_VOL         0x02
370 #define AC97_LINE_LEVEL_VOL     0x04
371 #define AC97_MASTER_MONO_VOL    0x06
372 #define AC97_PC_BEEP_VOL        0x0A
373 #define AC97_PC_BEEP_VOL_M      0x0F
374 #define AC97_SROUND_MASTER_VOL  0x38
375 #define AC97_PC_BEEP_VOL_S      1
376 
377 /*#define AC97_PHONE_VOL          0x0C
378 #define AC97_MIC_VOL            0x0E*/
379 #define AC97_MIC_20DB_ENABLE    0x40
380 
381 /*#define AC97_LINEIN_VOL         0x10
382 #define AC97_CD_VOL             0x12
383 #define AC97_VIDEO_VOL          0x14
384 #define AC97_AUX_VOL            0x16*/
385 #define AC97_PCM_OUT_VOL        0x18
386 /*#define AC97_RECORD_SELECT      0x1A*/
387 #define AC97_RECORD_MIC         0x00
388 #define AC97_RECORD_CD          0x01
389 #define AC97_RECORD_VIDEO       0x02
390 #define AC97_RECORD_AUX         0x03
391 #define AC97_RECORD_MONO_MUX    0x02
392 #define AC97_RECORD_DIGITAL     0x03
393 #define AC97_RECORD_LINE        0x04
394 #define AC97_RECORD_STEREO      0x05
395 #define AC97_RECORD_MONO        0x06
396 #define AC97_RECORD_PHONE       0x07
397 
398 /*#define AC97_RECORD_GAIN        0x1C*/
399 #define AC97_RECORD_VOL_M       0x0F
400 
401 /*#define AC97_GENERAL_PURPOSE    0x20*/
402 #define AC97_POWER_DOWN_CTRL    0x26
403 #define AC97_ADC_READY          0x0001
404 #define AC97_DAC_READY          0x0002
405 #define AC97_ANALOG_READY       0x0004
406 #define AC97_VREF_ON            0x0008
407 #define AC97_PR0                0x0100
408 #define AC97_PR1                0x0200
409 #define AC97_PR2                0x0400
410 #define AC97_PR3                0x0800
411 #define AC97_PR4                0x1000
412 
413 #define AC97_RESERVED1          0x28
414 
415 #define AC97_VENDOR_TEST        0x5A
416 
417 #define AC97_CLOCK_DELAY        0x5C
418 #define AC97_LINEOUT_MUX_SEL    0x0001
419 #define AC97_MONO_MUX_SEL       0x0002
420 #define AC97_CLOCK_DELAY_SEL    0x1F
421 #define AC97_DAC_CDS_SHIFT      6
422 #define AC97_ADC_CDS_SHIFT      11
423 
424 #define AC97_MULTI_CHANNEL_SEL  0x74
425 
426 /*#define AC97_VENDOR_ID1         0x7C
427 #define AC97_VENDOR_ID2         0x7E*/
428 
429 /*
430  * ASSP control regs
431  */
432 #define DSP_PORT_TIMER_COUNT    0x06
433 
434 #define DSP_PORT_MEMORY_INDEX   0x80
435 
436 #define DSP_PORT_MEMORY_TYPE    0x82
437 #define MEMTYPE_INTERNAL_CODE   0x0002
438 #define MEMTYPE_INTERNAL_DATA   0x0003
439 #define MEMTYPE_MASK            0x0003
440 
441 #define DSP_PORT_MEMORY_DATA    0x84
442 
443 #define DSP_PORT_CONTROL_REG_A  0xA2
444 #define DSP_PORT_CONTROL_REG_B  0xA4
445 #define DSP_PORT_CONTROL_REG_C  0xA6
446 
447 #define REV_A_CODE_MEMORY_BEGIN         0x0000
448 #define REV_A_CODE_MEMORY_END           0x0FFF
449 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
450 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
451 
452 #define REV_B_CODE_MEMORY_BEGIN         0x0000
453 #define REV_B_CODE_MEMORY_END           0x0BFF
454 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
455 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
456 
457 #define REV_A_DATA_MEMORY_BEGIN         0x1000
458 #define REV_A_DATA_MEMORY_END           0x2FFF
459 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
460 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
461 
462 #define REV_B_DATA_MEMORY_BEGIN         0x1000
463 #define REV_B_DATA_MEMORY_END           0x2BFF
464 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
465 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
466 
467 
468 #define NUM_UNITS_KERNEL_CODE          16
469 #define NUM_UNITS_KERNEL_DATA           2
470 
471 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
472 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
473 
474 /*
475  * Kernel data layout
476  */
477 
478 #define DP_SHIFT_COUNT                  7
479 
480 #define KDATA_BASE_ADDR                 0x1000
481 #define KDATA_BASE_ADDR2                0x1080
482 
483 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
484 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
485 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
486 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
487 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
488 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
489 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
490 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
491 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
492 
493 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
494 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
495 
496 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
497 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
498 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
499 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
500 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
501 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
502 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
503 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
504 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
505 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
506 
507 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
508 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
509 
510 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
511 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
512 
513 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
514 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
515 
516 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
517 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
518 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
519 
520 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
521 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
522 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
523 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
524 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
525 
526 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
527 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
528 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
529 
530 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
531 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
532 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
533 
534 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
535 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
536 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
537 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
538 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
539 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
540 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
541 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
542 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
543 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
544 
545 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
546 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
547 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
548 
549 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
550 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
551 
552 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
553 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
554 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
555 
556 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
557 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
558 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
559 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
560 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
561 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
562 
563 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
564 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
565 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
566 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
567 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
568 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
569 
570 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
571 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
572 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
573 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
574 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
575 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
576 
577 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
578 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
579 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
580 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
581 
582 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
583 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
584 
585 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
586 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
587 
588 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
589 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
590 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
591 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
592 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
593 
594 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
595 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
596 
597 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
598 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
599 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
600 
601 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
602 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
603 
604 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
605 
606 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
607 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
608 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
609 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
610 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
611 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
612 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
613 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
614 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
615 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
616 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
617 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
618 
619 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
620 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
621 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
622 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
623 
624 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
625 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
626 
627 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
628 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
629 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
630 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
631 
632 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
633 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
634 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
635 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
636 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
637 
638 /*
639  * second 'segment' (?) reserved for mixer
640  * buffers..
641  */
642 
643 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
644 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
645 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
646 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
647 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
648 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
649 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
650 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
651 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
652 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
653 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
654 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
655 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
656 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
657 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
658 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
659 
660 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
661 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
662 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
663 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
664 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
665 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
666 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
667 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
668 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
669 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
670 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
671 
672 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
673 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
674 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
675 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
676 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
677 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
678 
679 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
680 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
681 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
682 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
683 
684 /*
685  * client data area offsets
686  */
687 #define CDATA_INSTANCE_READY            0x00
688 
689 #define CDATA_HOST_SRC_ADDRL            0x01
690 #define CDATA_HOST_SRC_ADDRH            0x02
691 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
692 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
693 #define CDATA_HOST_SRC_CURRENTL         0x05
694 #define CDATA_HOST_SRC_CURRENTH         0x06
695 
696 #define CDATA_IN_BUF_CONNECT            0x07
697 #define CDATA_OUT_BUF_CONNECT           0x08
698 
699 #define CDATA_IN_BUF_BEGIN              0x09
700 #define CDATA_IN_BUF_END_PLUS_1         0x0A
701 #define CDATA_IN_BUF_HEAD               0x0B
702 #define CDATA_IN_BUF_TAIL               0x0C
703 #define CDATA_OUT_BUF_BEGIN             0x0D
704 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
705 #define CDATA_OUT_BUF_HEAD              0x0F
706 #define CDATA_OUT_BUF_TAIL              0x10
707 
708 #define CDATA_DMA_CONTROL               0x11
709 #define CDATA_RESERVED                  0x12
710 
711 #define CDATA_FREQUENCY                 0x13
712 #define CDATA_LEFT_VOLUME               0x14
713 #define CDATA_RIGHT_VOLUME              0x15
714 #define CDATA_LEFT_SUR_VOL              0x16
715 #define CDATA_RIGHT_SUR_VOL             0x17
716 
717 #define CDATA_HEADER_LEN                0x18
718 
719 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
720 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
721 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
722 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
723 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
724 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
725 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
726 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
727 
728 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
729 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
730 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
731 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
732 #define MINISRC_BIQUAD_STAGE    2
733 #define MINISRC_COEF_LOC          0x175
734 
735 #define DMACONTROL_BLOCK_MASK           0x000F
736 #define  DMAC_BLOCK0_SELECTOR           0x0000
737 #define  DMAC_BLOCK1_SELECTOR           0x0001
738 #define  DMAC_BLOCK2_SELECTOR           0x0002
739 #define  DMAC_BLOCK3_SELECTOR           0x0003
740 #define  DMAC_BLOCK4_SELECTOR           0x0004
741 #define  DMAC_BLOCK5_SELECTOR           0x0005
742 #define  DMAC_BLOCK6_SELECTOR           0x0006
743 #define  DMAC_BLOCK7_SELECTOR           0x0007
744 #define  DMAC_BLOCK8_SELECTOR           0x0008
745 #define  DMAC_BLOCK9_SELECTOR           0x0009
746 #define  DMAC_BLOCKA_SELECTOR           0x000A
747 #define  DMAC_BLOCKB_SELECTOR           0x000B
748 #define  DMAC_BLOCKC_SELECTOR           0x000C
749 #define  DMAC_BLOCKD_SELECTOR           0x000D
750 #define  DMAC_BLOCKE_SELECTOR           0x000E
751 #define  DMAC_BLOCKF_SELECTOR           0x000F
752 #define DMACONTROL_PAGE_MASK            0x00F0
753 #define  DMAC_PAGE0_SELECTOR            0x0030
754 #define  DMAC_PAGE1_SELECTOR            0x0020
755 #define  DMAC_PAGE2_SELECTOR            0x0010
756 #define  DMAC_PAGE3_SELECTOR            0x0000
757 #define DMACONTROL_AUTOREPEAT           0x1000
758 #define DMACONTROL_STOPPED              0x2000
759 #define DMACONTROL_DIRECTION            0x0100
760 
761 /*
762  * an arbitrary volume we set the internal
763  * volume settings to so that the ac97 volume
764  * range is a little less insane.  0x7fff is
765  * max.
766  */
767 #define ARB_VOLUME ( 0x6800 )
768 
769 /*
770  */
771 
772 /* quirk lists */
773 struct m3_quirk {
774 	const char *name;	/* device name */
775 	u16 vendor, device;	/* subsystem ids */
776 	int amp_gpio;		/* gpio pin #  for external amp, -1 = default */
777 	int irda_workaround;	/* non-zero if avoid to touch 0x10 on GPIO_DIRECTION
778 				   (e.g. for IrDA on Dell Inspirons) */
779 };
780 
781 struct m3_hv_quirk {
782 	u16 vendor, device, subsystem_vendor, subsystem_device;
783 	u32 config;		/* ALLEGRO_CONFIG hardware volume bits */
784 	int is_omnibook;	/* Do HP OmniBook GPIO magic? */
785 };
786 
787 struct m3_list {
788 	int curlen;
789 	int mem_addr;
790 	int max;
791 };
792 
793 struct m3_dma {
794 
795 	int number;
796 	struct snd_pcm_substream *substream;
797 
798 	struct assp_instance {
799 		unsigned short code, data;
800 	} inst;
801 
802 	int running;
803 	int opened;
804 
805 	unsigned long buffer_addr;
806 	int dma_size;
807 	int period_size;
808 	unsigned int hwptr;
809 	int count;
810 
811 	int index[3];
812 	struct m3_list *index_list[3];
813 
814         int in_lists;
815 
816 	struct list_head list;
817 
818 };
819 
820 struct snd_m3 {
821 
822 	struct snd_card *card;
823 
824 	unsigned long iobase;
825 
826 	int irq;
827 	unsigned int allegro_flag : 1;
828 
829 	struct snd_ac97 *ac97;
830 
831 	struct snd_pcm *pcm;
832 
833 	struct pci_dev *pci;
834 	const struct m3_quirk *quirk;
835 	const struct m3_hv_quirk *hv_quirk;
836 
837 	int dacs_active;
838 	int timer_users;
839 
840 	struct m3_list  msrc_list;
841 	struct m3_list  mixer_list;
842 	struct m3_list  adc1_list;
843 	struct m3_list  dma_list;
844 
845 	/* for storing reset state..*/
846 	u8 reset_state;
847 
848 	int external_amp;
849 	int amp_gpio;
850 
851 	/* midi */
852 	struct snd_rawmidi *rmidi;
853 
854 	/* pcm streams */
855 	int num_substreams;
856 	struct m3_dma *substreams;
857 
858 	spinlock_t reg_lock;
859 	spinlock_t ac97_lock;
860 
861 	struct snd_kcontrol *master_switch;
862 	struct snd_kcontrol *master_volume;
863 	struct tasklet_struct hwvol_tq;
864 
865 #ifdef CONFIG_PM
866 	u16 *suspend_mem;
867 #endif
868 };
869 
870 /*
871  * pci ids
872  */
873 static struct pci_device_id snd_m3_ids[] = {
874 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
875 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
876 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
877 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
878 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
879 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
880 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
881 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
882 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
883 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
884 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
885 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
886 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
887 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
888 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
889 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
890 	{0,},
891 };
892 
893 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
894 
895 static const struct m3_quirk m3_quirk_list[] = {
896 	/* panasonic CF-28 "toughbook" */
897 	{
898 		.name = "Panasonic CF-28",
899 		.vendor = 0x10f7,
900 		.device = 0x833e,
901 		.amp_gpio = 0x0d,
902 	},
903 	/* panasonic CF-72 "toughbook" */
904 	{
905 		.name = "Panasonic CF-72",
906 		.vendor = 0x10f7,
907 		.device = 0x833d,
908 		.amp_gpio = 0x0d,
909 	},
910 	/* Dell Inspiron 4000 */
911 	{
912 		.name = "Dell Inspiron 4000",
913 		.vendor = 0x1028,
914 		.device = 0x00b0,
915 		.amp_gpio = -1,
916 		.irda_workaround = 1,
917 	},
918 	/* Dell Inspiron 8000 */
919 	{
920 		.name = "Dell Inspiron 8000",
921 		.vendor = 0x1028,
922 		.device = 0x00a4,
923 		.amp_gpio = -1,
924 		.irda_workaround = 1,
925 	},
926 	/* Dell Inspiron 8100 */
927 	{
928 		.name = "Dell Inspiron 8100",
929 		.vendor = 0x1028,
930 		.device = 0x00e6,
931 		.amp_gpio = -1,
932 		.irda_workaround = 1,
933 	},
934 	/* NEC LM800J/7 */
935 	{
936 		.name = "NEC LM800J/7",
937 		.vendor = 0x1033,
938 		.device = 0x80f1,
939 		.amp_gpio = 0x03,
940 	},
941 	/* LEGEND ZhaoYang 3100CF */
942 	{
943 		.name = "LEGEND ZhaoYang 3100CF",
944 		.vendor = 0x1509,
945 		.device = 0x1740,
946 		.amp_gpio = 0x03,
947 	},
948 	/* END */
949 	{ NULL }
950 };
951 
952 /* These values came from the Windows driver. */
953 static const struct m3_hv_quirk m3_hv_quirk_list[] = {
954 	/* Allegro chips */
955 	{ 0x125D, 0x1988, 0x0E11, 0x002E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
956 	{ 0x125D, 0x1988, 0x0E11, 0x0094, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
957 	{ 0x125D, 0x1988, 0x0E11, 0xB112, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
958 	{ 0x125D, 0x1988, 0x0E11, 0xB114, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
959 	{ 0x125D, 0x1988, 0x103C, 0x0012, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
960 	{ 0x125D, 0x1988, 0x103C, 0x0018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
961 	{ 0x125D, 0x1988, 0x103C, 0x001C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
962 	{ 0x125D, 0x1988, 0x103C, 0x001D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
963 	{ 0x125D, 0x1988, 0x103C, 0x001E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
964 	{ 0x125D, 0x1988, 0x107B, 0x3350, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
965 	{ 0x125D, 0x1988, 0x10F7, 0x8338, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
966 	{ 0x125D, 0x1988, 0x10F7, 0x833C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
967 	{ 0x125D, 0x1988, 0x10F7, 0x833D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
968 	{ 0x125D, 0x1988, 0x10F7, 0x833E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
969 	{ 0x125D, 0x1988, 0x10F7, 0x833F, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
970 	{ 0x125D, 0x1988, 0x13BD, 0x1018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
971 	{ 0x125D, 0x1988, 0x13BD, 0x1019, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
972 	{ 0x125D, 0x1988, 0x13BD, 0x101A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
973 	{ 0x125D, 0x1988, 0x14FF, 0x0F03, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
974 	{ 0x125D, 0x1988, 0x14FF, 0x0F04, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
975 	{ 0x125D, 0x1988, 0x14FF, 0x0F05, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
976 	{ 0x125D, 0x1988, 0x156D, 0xB400, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
977 	{ 0x125D, 0x1988, 0x156D, 0xB795, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
978 	{ 0x125D, 0x1988, 0x156D, 0xB797, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
979 	{ 0x125D, 0x1988, 0x156D, 0xC700, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
980 	{ 0x125D, 0x1988, 0x1033, 0x80F1, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
981 	{ 0x125D, 0x1988, 0x103C, 0x001A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 }, /* HP OmniBook 6100 */
982 	{ 0x125D, 0x1988, 0x107B, 0x340A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
983 	{ 0x125D, 0x1988, 0x107B, 0x3450, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
984 	{ 0x125D, 0x1988, 0x109F, 0x3134, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
985 	{ 0x125D, 0x1988, 0x109F, 0x3161, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
986 	{ 0x125D, 0x1988, 0x144D, 0x3280, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
987 	{ 0x125D, 0x1988, 0x144D, 0x3281, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
988 	{ 0x125D, 0x1988, 0x144D, 0xC002, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
989 	{ 0x125D, 0x1988, 0x144D, 0xC003, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
990 	{ 0x125D, 0x1988, 0x1509, 0x1740, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
991 	{ 0x125D, 0x1988, 0x1610, 0x0010, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
992 	{ 0x125D, 0x1988, 0x1042, 0x1042, HV_CTRL_ENABLE, 0 },
993 	{ 0x125D, 0x1988, 0x107B, 0x9500, HV_CTRL_ENABLE, 0 },
994 	{ 0x125D, 0x1988, 0x14FF, 0x0F06, HV_CTRL_ENABLE, 0 },
995 	{ 0x125D, 0x1988, 0x1558, 0x8586, HV_CTRL_ENABLE, 0 },
996 	{ 0x125D, 0x1988, 0x161F, 0x2011, HV_CTRL_ENABLE, 0 },
997 	/* Maestro3 chips */
998 	{ 0x125D, 0x1998, 0x103C, 0x000E, HV_CTRL_ENABLE, 0 },
999 	{ 0x125D, 0x1998, 0x103C, 0x0010, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 6000 */
1000 	{ 0x125D, 0x1998, 0x103C, 0x0011, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 500 */
1001 	{ 0x125D, 0x1998, 0x103C, 0x001B, HV_CTRL_ENABLE, 0 },
1002 	{ 0x125D, 0x1998, 0x104D, 0x80A6, HV_CTRL_ENABLE, 0 },
1003 	{ 0x125D, 0x1998, 0x104D, 0x80AA, HV_CTRL_ENABLE, 0 },
1004 	{ 0x125D, 0x1998, 0x107B, 0x5300, HV_CTRL_ENABLE, 0 },
1005 	{ 0x125D, 0x1998, 0x110A, 0x1998, HV_CTRL_ENABLE, 0 },
1006 	{ 0x125D, 0x1998, 0x13BD, 0x1015, HV_CTRL_ENABLE, 0 },
1007 	{ 0x125D, 0x1998, 0x13BD, 0x101C, HV_CTRL_ENABLE, 0 },
1008 	{ 0x125D, 0x1998, 0x13BD, 0x1802, HV_CTRL_ENABLE, 0 },
1009 	{ 0x125D, 0x1998, 0x1599, 0x0715, HV_CTRL_ENABLE, 0 },
1010 	{ 0x125D, 0x1998, 0x5643, 0x5643, HV_CTRL_ENABLE, 0 },
1011 	{ 0x125D, 0x199A, 0x144D, 0x3260, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1012 	{ 0x125D, 0x199A, 0x144D, 0x3261, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1013 	{ 0x125D, 0x199A, 0x144D, 0xC000, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1014 	{ 0x125D, 0x199A, 0x144D, 0xC001, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1015 	{ 0 }
1016 };
1017 
1018 /*
1019  * lowlevel functions
1020  */
1021 
1022 static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
1023 {
1024 	outw(value, chip->iobase + reg);
1025 }
1026 
1027 static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
1028 {
1029 	return inw(chip->iobase + reg);
1030 }
1031 
1032 static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
1033 {
1034 	outb(value, chip->iobase + reg);
1035 }
1036 
1037 static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
1038 {
1039 	return inb(chip->iobase + reg);
1040 }
1041 
1042 /*
1043  * access 16bit words to the code or data regions of the dsp's memory.
1044  * index addresses 16bit words.
1045  */
1046 static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
1047 {
1048 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1049 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1050 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1051 }
1052 
1053 static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
1054 {
1055 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1056 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1057 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1058 }
1059 
1060 static void snd_m3_assp_halt(struct snd_m3 *chip)
1061 {
1062 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1063 	msleep(10);
1064 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1065 }
1066 
1067 static void snd_m3_assp_continue(struct snd_m3 *chip)
1068 {
1069 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1070 }
1071 
1072 
1073 /*
1074  * This makes me sad. the maestro3 has lists
1075  * internally that must be packed.. 0 terminates,
1076  * apparently, or maybe all unused entries have
1077  * to be 0, the lists have static lengths set
1078  * by the binary code images.
1079  */
1080 
1081 static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
1082 {
1083 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1084 			  list->mem_addr + list->curlen,
1085 			  val);
1086 	return list->curlen++;
1087 }
1088 
1089 static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
1090 {
1091 	u16  val;
1092 	int lastindex = list->curlen - 1;
1093 
1094 	if (index != lastindex) {
1095 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1096 				       list->mem_addr + lastindex);
1097 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1098 				  list->mem_addr + index,
1099 				  val);
1100 	}
1101 
1102 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1103 			  list->mem_addr + lastindex,
1104 			  0);
1105 
1106 	list->curlen--;
1107 }
1108 
1109 static void snd_m3_inc_timer_users(struct snd_m3 *chip)
1110 {
1111 	chip->timer_users++;
1112 	if (chip->timer_users != 1)
1113 		return;
1114 
1115 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1116 			  KDATA_TIMER_COUNT_RELOAD,
1117 			  240);
1118 
1119 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1120 			  KDATA_TIMER_COUNT_CURRENT,
1121 			  240);
1122 
1123 	snd_m3_outw(chip,
1124 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1125 		    HOST_INT_CTRL);
1126 }
1127 
1128 static void snd_m3_dec_timer_users(struct snd_m3 *chip)
1129 {
1130 	chip->timer_users--;
1131 	if (chip->timer_users > 0)
1132 		return;
1133 
1134 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1135 			  KDATA_TIMER_COUNT_RELOAD,
1136 			  0);
1137 
1138 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1139 			  KDATA_TIMER_COUNT_CURRENT,
1140 			  0);
1141 
1142 	snd_m3_outw(chip,
1143 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1144 		    HOST_INT_CTRL);
1145 }
1146 
1147 /*
1148  * start/stop
1149  */
1150 
1151 /* spinlock held! */
1152 static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
1153 			    struct snd_pcm_substream *subs)
1154 {
1155 	if (! s || ! subs)
1156 		return -EINVAL;
1157 
1158 	snd_m3_inc_timer_users(chip);
1159 	switch (subs->stream) {
1160 	case SNDRV_PCM_STREAM_PLAYBACK:
1161 		chip->dacs_active++;
1162 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1163 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1164 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1165 				  KDATA_MIXER_TASK_NUMBER,
1166 				  chip->dacs_active);
1167 		break;
1168 	case SNDRV_PCM_STREAM_CAPTURE:
1169 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1170 				  KDATA_ADC1_REQUEST, 1);
1171 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1172 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1173 		break;
1174 	}
1175 	return 0;
1176 }
1177 
1178 /* spinlock held! */
1179 static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
1180 			   struct snd_pcm_substream *subs)
1181 {
1182 	if (! s || ! subs)
1183 		return -EINVAL;
1184 
1185 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1186 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1187 	snd_m3_dec_timer_users(chip);
1188 	switch (subs->stream) {
1189 	case SNDRV_PCM_STREAM_PLAYBACK:
1190 		chip->dacs_active--;
1191 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1192 				  KDATA_MIXER_TASK_NUMBER,
1193 				  chip->dacs_active);
1194 		break;
1195 	case SNDRV_PCM_STREAM_CAPTURE:
1196 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1197 				  KDATA_ADC1_REQUEST, 0);
1198 		break;
1199 	}
1200 	return 0;
1201 }
1202 
1203 static int
1204 snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
1205 {
1206 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1207 	struct m3_dma *s = subs->runtime->private_data;
1208 	int err = -EINVAL;
1209 
1210 	snd_assert(s != NULL, return -ENXIO);
1211 
1212 	spin_lock(&chip->reg_lock);
1213 	switch (cmd) {
1214 	case SNDRV_PCM_TRIGGER_START:
1215 	case SNDRV_PCM_TRIGGER_RESUME:
1216 		if (s->running)
1217 			err = -EBUSY;
1218 		else {
1219 			s->running = 1;
1220 			err = snd_m3_pcm_start(chip, s, subs);
1221 		}
1222 		break;
1223 	case SNDRV_PCM_TRIGGER_STOP:
1224 	case SNDRV_PCM_TRIGGER_SUSPEND:
1225 		if (! s->running)
1226 			err = 0; /* should return error? */
1227 		else {
1228 			s->running = 0;
1229 			err = snd_m3_pcm_stop(chip, s, subs);
1230 		}
1231 		break;
1232 	}
1233 	spin_unlock(&chip->reg_lock);
1234 	return err;
1235 }
1236 
1237 /*
1238  * setup
1239  */
1240 static void
1241 snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1242 {
1243 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1244 	struct snd_pcm_runtime *runtime = subs->runtime;
1245 
1246 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1247 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1248 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1249 	} else {
1250 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1251 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1252 	}
1253 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1254 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1255 
1256 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1257 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1258 	s->hwptr = 0;
1259 	s->count = 0;
1260 
1261 #define LO(x) ((x) & 0xffff)
1262 #define HI(x) LO((x) >> 16)
1263 
1264 	/* host dma buffer pointers */
1265 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1266 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1267 			  LO(s->buffer_addr));
1268 
1269 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1270 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1271 			  HI(s->buffer_addr));
1272 
1273 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1274 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1275 			  LO(s->buffer_addr + s->dma_size));
1276 
1277 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1278 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1279 			  HI(s->buffer_addr + s->dma_size));
1280 
1281 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1282 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1283 			  LO(s->buffer_addr));
1284 
1285 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1286 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1287 			  HI(s->buffer_addr));
1288 #undef LO
1289 #undef HI
1290 
1291 	/* dsp buffers */
1292 
1293 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1294 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1295 			  dsp_in_buffer);
1296 
1297 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1298 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1299 			  dsp_in_buffer + (dsp_in_size / 2));
1300 
1301 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1302 			  s->inst.data + CDATA_IN_BUF_HEAD,
1303 			  dsp_in_buffer);
1304 
1305 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1306 			  s->inst.data + CDATA_IN_BUF_TAIL,
1307 			  dsp_in_buffer);
1308 
1309 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1310 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1311 			  dsp_out_buffer);
1312 
1313 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1314 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1315 			  dsp_out_buffer + (dsp_out_size / 2));
1316 
1317 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1318 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1319 			  dsp_out_buffer);
1320 
1321 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1322 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1323 			  dsp_out_buffer);
1324 }
1325 
1326 static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
1327 			      struct snd_pcm_runtime *runtime)
1328 {
1329 	u32 freq;
1330 
1331 	/*
1332 	 * put us in the lists if we're not already there
1333 	 */
1334 	if (! s->in_lists) {
1335 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1336 					      s->inst.data >> DP_SHIFT_COUNT);
1337 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1338 					      s->inst.data >> DP_SHIFT_COUNT);
1339 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1340 					      s->inst.data >> DP_SHIFT_COUNT);
1341 		s->in_lists = 1;
1342 	}
1343 
1344 	/* write to 'mono' word */
1345 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1346 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1347 			  runtime->channels == 2 ? 0 : 1);
1348 	/* write to '8bit' word */
1349 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1350 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1351 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1352 
1353 	/* set up dac/adc rate */
1354 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1355 	if (freq)
1356 		freq--;
1357 
1358 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1359 			  s->inst.data + CDATA_FREQUENCY,
1360 			  freq);
1361 }
1362 
1363 
1364 static const struct play_vals {
1365 	u16 addr, val;
1366 } pv[] = {
1367 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1368 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1369 	{SRC3_DIRECTION_OFFSET, 0} ,
1370 	/* +1, +2 are stereo/16 bit */
1371 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1372 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1373 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1374 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1375 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1376 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1377 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1378 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1379 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1380 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1381 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1382 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1383 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1384 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1385 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1386 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1387 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1388 };
1389 
1390 
1391 /* the mode passed should be already shifted and masked */
1392 static void
1393 snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
1394 		      struct snd_pcm_substream *subs)
1395 {
1396 	unsigned int i;
1397 
1398 	/*
1399 	 * some per client initializers
1400 	 */
1401 
1402 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1403 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1404 			  s->inst.data + 40 + 8);
1405 
1406 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1407 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1408 			  s->inst.code + MINISRC_COEF_LOC);
1409 
1410 	/* enable or disable low pass filter? */
1411 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1412 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1413 			  subs->runtime->rate > 45000 ? 0xff : 0);
1414 
1415 	/* tell it which way dma is going? */
1416 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1417 			  s->inst.data + CDATA_DMA_CONTROL,
1418 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1419 
1420 	/*
1421 	 * set an armload of static initializers
1422 	 */
1423 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1424 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1425 				  s->inst.data + pv[i].addr, pv[i].val);
1426 }
1427 
1428 /*
1429  *    Native record driver
1430  */
1431 static const struct rec_vals {
1432 	u16 addr, val;
1433 } rv[] = {
1434 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1435 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1436 	{SRC3_DIRECTION_OFFSET, 1} ,
1437 	/* +1, +2 are stereo/16 bit */
1438 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1439 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1440 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1441 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1442 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1443 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1444 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1445 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1446 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1447 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1448 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1449 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1450 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1451 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1452 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1453 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1454 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1455 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1456 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1457 };
1458 
1459 static void
1460 snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1461 {
1462 	unsigned int i;
1463 
1464 	/*
1465 	 * some per client initializers
1466 	 */
1467 
1468 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1469 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1470 			  s->inst.data + 40 + 8);
1471 
1472 	/* tell it which way dma is going? */
1473 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1474 			  s->inst.data + CDATA_DMA_CONTROL,
1475 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1476 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1477 
1478 	/*
1479 	 * set an armload of static initializers
1480 	 */
1481 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1482 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1483 				  s->inst.data + rv[i].addr, rv[i].val);
1484 }
1485 
1486 static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
1487 				struct snd_pcm_hw_params *hw_params)
1488 {
1489 	struct m3_dma *s = substream->runtime->private_data;
1490 	int err;
1491 
1492 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1493 		return err;
1494 	/* set buffer address */
1495 	s->buffer_addr = substream->runtime->dma_addr;
1496 	if (s->buffer_addr & 0x3) {
1497 		snd_printk(KERN_ERR "oh my, not aligned\n");
1498 		s->buffer_addr = s->buffer_addr & ~0x3;
1499 	}
1500 	return 0;
1501 }
1502 
1503 static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
1504 {
1505 	struct m3_dma *s;
1506 
1507 	if (substream->runtime->private_data == NULL)
1508 		return 0;
1509 	s = substream->runtime->private_data;
1510 	snd_pcm_lib_free_pages(substream);
1511 	s->buffer_addr = 0;
1512 	return 0;
1513 }
1514 
1515 static int
1516 snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
1517 {
1518 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1519 	struct snd_pcm_runtime *runtime = subs->runtime;
1520 	struct m3_dma *s = runtime->private_data;
1521 
1522 	snd_assert(s != NULL, return -ENXIO);
1523 
1524 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1525 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1526 		return -EINVAL;
1527 	if (runtime->rate > 48000 ||
1528 	    runtime->rate < 8000)
1529 		return -EINVAL;
1530 
1531 	spin_lock_irq(&chip->reg_lock);
1532 
1533 	snd_m3_pcm_setup1(chip, s, subs);
1534 
1535 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1536 		snd_m3_playback_setup(chip, s, subs);
1537 	else
1538 		snd_m3_capture_setup(chip, s, subs);
1539 
1540 	snd_m3_pcm_setup2(chip, s, runtime);
1541 
1542 	spin_unlock_irq(&chip->reg_lock);
1543 
1544 	return 0;
1545 }
1546 
1547 /*
1548  * get current pointer
1549  */
1550 static unsigned int
1551 snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1552 {
1553 	u16 hi = 0, lo = 0;
1554 	int retry = 10;
1555 	u32 addr;
1556 
1557 	/*
1558 	 * try and get a valid answer
1559 	 */
1560 	while (retry--) {
1561 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1562 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1563 
1564 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1565 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1566 
1567 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1568 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1569 			break;
1570 	}
1571 	addr = lo | ((u32)hi<<16);
1572 	return (unsigned int)(addr - s->buffer_addr);
1573 }
1574 
1575 static snd_pcm_uframes_t
1576 snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
1577 {
1578 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1579 	unsigned int ptr;
1580 	struct m3_dma *s = subs->runtime->private_data;
1581 	snd_assert(s != NULL, return 0);
1582 
1583 	spin_lock(&chip->reg_lock);
1584 	ptr = snd_m3_get_pointer(chip, s, subs);
1585 	spin_unlock(&chip->reg_lock);
1586 	return bytes_to_frames(subs->runtime, ptr);
1587 }
1588 
1589 
1590 /* update pointer */
1591 /* spinlock held! */
1592 static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
1593 {
1594 	struct snd_pcm_substream *subs = s->substream;
1595 	unsigned int hwptr;
1596 	int diff;
1597 
1598 	if (! s->running)
1599 		return;
1600 
1601 	hwptr = snd_m3_get_pointer(chip, s, subs);
1602 
1603 	/* try to avoid expensive modulo divisions */
1604 	if (hwptr >= s->dma_size)
1605 		hwptr %= s->dma_size;
1606 
1607 	diff = s->dma_size + hwptr - s->hwptr;
1608 	if (diff >= s->dma_size)
1609 		diff %= s->dma_size;
1610 
1611 	s->hwptr = hwptr;
1612 	s->count += diff;
1613 
1614 	if (s->count >= (signed)s->period_size) {
1615 
1616 		if (s->count < 2 * (signed)s->period_size)
1617 			s->count -= (signed)s->period_size;
1618 		else
1619 			s->count %= s->period_size;
1620 
1621 		spin_unlock(&chip->reg_lock);
1622 		snd_pcm_period_elapsed(subs);
1623 		spin_lock(&chip->reg_lock);
1624 	}
1625 }
1626 
1627 static void snd_m3_update_hw_volume(unsigned long private_data)
1628 {
1629 	struct snd_m3 *chip = (struct snd_m3 *) private_data;
1630 	int x, val;
1631 	unsigned long flags;
1632 
1633 	/* Figure out which volume control button was pushed,
1634 	   based on differences from the default register
1635 	   values. */
1636 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1637 
1638 	/* Reset the volume control registers. */
1639 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1640 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1641 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1642 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1643 
1644 	if (!chip->master_switch || !chip->master_volume)
1645 		return;
1646 
1647 	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
1648 	spin_lock_irqsave(&chip->ac97_lock, flags);
1649 
1650 	val = chip->ac97->regs[AC97_MASTER_VOL];
1651 	switch (x) {
1652 	case 0x88:
1653 		/* mute */
1654 		val ^= 0x8000;
1655 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1656 		outw(val, chip->iobase + CODEC_DATA);
1657 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1658 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1659 			       &chip->master_switch->id);
1660 		break;
1661 	case 0xaa:
1662 		/* volume up */
1663 		if ((val & 0x7f) > 0)
1664 			val--;
1665 		if ((val & 0x7f00) > 0)
1666 			val -= 0x0100;
1667 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1668 		outw(val, chip->iobase + CODEC_DATA);
1669 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1670 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1671 			       &chip->master_volume->id);
1672 		break;
1673 	case 0x66:
1674 		/* volume down */
1675 		if ((val & 0x7f) < 0x1f)
1676 			val++;
1677 		if ((val & 0x7f00) < 0x1f00)
1678 			val += 0x0100;
1679 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1680 		outw(val, chip->iobase + CODEC_DATA);
1681 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1682 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1683 			       &chip->master_volume->id);
1684 		break;
1685 	}
1686 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1687 }
1688 
1689 static irqreturn_t
1690 snd_m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1691 {
1692 	struct snd_m3 *chip = dev_id;
1693 	u8 status;
1694 	int i;
1695 
1696 	status = inb(chip->iobase + HOST_INT_STATUS);
1697 
1698 	if (status == 0xff)
1699 		return IRQ_NONE;
1700 
1701 	if (status & HV_INT_PENDING)
1702 		tasklet_hi_schedule(&chip->hwvol_tq);
1703 
1704 	/*
1705 	 * ack an assp int if its running
1706 	 * and has an int pending
1707 	 */
1708 	if (status & ASSP_INT_PENDING) {
1709 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1710 		if (!(ctl & STOP_ASSP_CLOCK)) {
1711 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1712 			if (ctl & DSP2HOST_REQ_TIMER) {
1713 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1714 				/* update adc/dac info if it was a timer int */
1715 				spin_lock(&chip->reg_lock);
1716 				for (i = 0; i < chip->num_substreams; i++) {
1717 					struct m3_dma *s = &chip->substreams[i];
1718 					if (s->running)
1719 						snd_m3_update_ptr(chip, s);
1720 				}
1721 				spin_unlock(&chip->reg_lock);
1722 			}
1723 		}
1724 	}
1725 
1726 #if 0 /* TODO: not supported yet */
1727 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1728 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1729 #endif
1730 
1731 	/* ack ints */
1732 	outb(status, chip->iobase + HOST_INT_STATUS);
1733 
1734 	return IRQ_HANDLED;
1735 }
1736 
1737 
1738 /*
1739  */
1740 
1741 static struct snd_pcm_hardware snd_m3_playback =
1742 {
1743 	.info =			(SNDRV_PCM_INFO_MMAP |
1744 				 SNDRV_PCM_INFO_INTERLEAVED |
1745 				 SNDRV_PCM_INFO_MMAP_VALID |
1746 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1747 				 /*SNDRV_PCM_INFO_PAUSE |*/
1748 				 SNDRV_PCM_INFO_RESUME),
1749 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1750 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1751 	.rate_min =		8000,
1752 	.rate_max =		48000,
1753 	.channels_min =		1,
1754 	.channels_max =		2,
1755 	.buffer_bytes_max =	(512*1024),
1756 	.period_bytes_min =	64,
1757 	.period_bytes_max =	(512*1024),
1758 	.periods_min =		1,
1759 	.periods_max =		1024,
1760 };
1761 
1762 static struct snd_pcm_hardware snd_m3_capture =
1763 {
1764 	.info =			(SNDRV_PCM_INFO_MMAP |
1765 				 SNDRV_PCM_INFO_INTERLEAVED |
1766 				 SNDRV_PCM_INFO_MMAP_VALID |
1767 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1768 				 /*SNDRV_PCM_INFO_PAUSE |*/
1769 				 SNDRV_PCM_INFO_RESUME),
1770 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1771 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1772 	.rate_min =		8000,
1773 	.rate_max =		48000,
1774 	.channels_min =		1,
1775 	.channels_max =		2,
1776 	.buffer_bytes_max =	(512*1024),
1777 	.period_bytes_min =	64,
1778 	.period_bytes_max =	(512*1024),
1779 	.periods_min =		1,
1780 	.periods_max =		1024,
1781 };
1782 
1783 
1784 /*
1785  */
1786 
1787 static int
1788 snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1789 {
1790 	int i;
1791 	struct m3_dma *s;
1792 
1793 	spin_lock_irq(&chip->reg_lock);
1794 	for (i = 0; i < chip->num_substreams; i++) {
1795 		s = &chip->substreams[i];
1796 		if (! s->opened)
1797 			goto __found;
1798 	}
1799 	spin_unlock_irq(&chip->reg_lock);
1800 	return -ENOMEM;
1801 __found:
1802 	s->opened = 1;
1803 	s->running = 0;
1804 	spin_unlock_irq(&chip->reg_lock);
1805 
1806 	subs->runtime->private_data = s;
1807 	s->substream = subs;
1808 
1809 	/* set list owners */
1810 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1811 		s->index_list[0] = &chip->mixer_list;
1812 	} else
1813 		s->index_list[0] = &chip->adc1_list;
1814 	s->index_list[1] = &chip->msrc_list;
1815 	s->index_list[2] = &chip->dma_list;
1816 
1817 	return 0;
1818 }
1819 
1820 static void
1821 snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1822 {
1823 	struct m3_dma *s = subs->runtime->private_data;
1824 
1825 	if (s == NULL)
1826 		return; /* not opened properly */
1827 
1828 	spin_lock_irq(&chip->reg_lock);
1829 	if (s->substream && s->running)
1830 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1831 	if (s->in_lists) {
1832 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1833 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1834 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1835 		s->in_lists = 0;
1836 	}
1837 	s->running = 0;
1838 	s->opened = 0;
1839 	spin_unlock_irq(&chip->reg_lock);
1840 }
1841 
1842 static int
1843 snd_m3_playback_open(struct snd_pcm_substream *subs)
1844 {
1845 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1846 	struct snd_pcm_runtime *runtime = subs->runtime;
1847 	int err;
1848 
1849 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1850 		return err;
1851 
1852 	runtime->hw = snd_m3_playback;
1853 	snd_pcm_set_sync(subs);
1854 
1855 	return 0;
1856 }
1857 
1858 static int
1859 snd_m3_playback_close(struct snd_pcm_substream *subs)
1860 {
1861 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1862 
1863 	snd_m3_substream_close(chip, subs);
1864 	return 0;
1865 }
1866 
1867 static int
1868 snd_m3_capture_open(struct snd_pcm_substream *subs)
1869 {
1870 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1871 	struct snd_pcm_runtime *runtime = subs->runtime;
1872 	int err;
1873 
1874 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1875 		return err;
1876 
1877 	runtime->hw = snd_m3_capture;
1878 	snd_pcm_set_sync(subs);
1879 
1880 	return 0;
1881 }
1882 
1883 static int
1884 snd_m3_capture_close(struct snd_pcm_substream *subs)
1885 {
1886 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1887 
1888 	snd_m3_substream_close(chip, subs);
1889 	return 0;
1890 }
1891 
1892 /*
1893  * create pcm instance
1894  */
1895 
1896 static struct snd_pcm_ops snd_m3_playback_ops = {
1897 	.open =		snd_m3_playback_open,
1898 	.close =	snd_m3_playback_close,
1899 	.ioctl =	snd_pcm_lib_ioctl,
1900 	.hw_params =	snd_m3_pcm_hw_params,
1901 	.hw_free =	snd_m3_pcm_hw_free,
1902 	.prepare =	snd_m3_pcm_prepare,
1903 	.trigger =	snd_m3_pcm_trigger,
1904 	.pointer =	snd_m3_pcm_pointer,
1905 };
1906 
1907 static struct snd_pcm_ops snd_m3_capture_ops = {
1908 	.open =		snd_m3_capture_open,
1909 	.close =	snd_m3_capture_close,
1910 	.ioctl =	snd_pcm_lib_ioctl,
1911 	.hw_params =	snd_m3_pcm_hw_params,
1912 	.hw_free =	snd_m3_pcm_hw_free,
1913 	.prepare =	snd_m3_pcm_prepare,
1914 	.trigger =	snd_m3_pcm_trigger,
1915 	.pointer =	snd_m3_pcm_pointer,
1916 };
1917 
1918 static int __devinit
1919 snd_m3_pcm(struct snd_m3 * chip, int device)
1920 {
1921 	struct snd_pcm *pcm;
1922 	int err;
1923 
1924 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1925 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1926 	if (err < 0)
1927 		return err;
1928 
1929 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1930 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1931 
1932 	pcm->private_data = chip;
1933 	pcm->info_flags = 0;
1934 	strcpy(pcm->name, chip->card->driver);
1935 	chip->pcm = pcm;
1936 
1937 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1938 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1939 
1940 	return 0;
1941 }
1942 
1943 
1944 /*
1945  * ac97 interface
1946  */
1947 
1948 /*
1949  * Wait for the ac97 serial bus to be free.
1950  * return nonzero if the bus is still busy.
1951  */
1952 static int snd_m3_ac97_wait(struct snd_m3 *chip)
1953 {
1954 	int i = 10000;
1955 
1956 	do {
1957 		if (! (snd_m3_inb(chip, 0x30) & 1))
1958 			return 0;
1959 		cpu_relax();
1960 	} while (i-- > 0);
1961 
1962 	snd_printk(KERN_ERR "ac97 serial bus busy\n");
1963 	return 1;
1964 }
1965 
1966 static unsigned short
1967 snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1968 {
1969 	struct snd_m3 *chip = ac97->private_data;
1970 	unsigned long flags;
1971 	unsigned short data = 0xffff;
1972 
1973 	if (snd_m3_ac97_wait(chip))
1974 		goto fail;
1975 	spin_lock_irqsave(&chip->ac97_lock, flags);
1976 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1977 	if (snd_m3_ac97_wait(chip))
1978 		goto fail_unlock;
1979 	data = snd_m3_inw(chip, CODEC_DATA);
1980 fail_unlock:
1981 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1982 fail:
1983 	return data;
1984 }
1985 
1986 static void
1987 snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
1988 {
1989 	struct snd_m3 *chip = ac97->private_data;
1990 	unsigned long flags;
1991 
1992 	if (snd_m3_ac97_wait(chip))
1993 		return;
1994 	spin_lock_irqsave(&chip->ac97_lock, flags);
1995 	snd_m3_outw(chip, val, CODEC_DATA);
1996 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1997 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1998 }
1999 
2000 
2001 static void snd_m3_remote_codec_config(int io, int isremote)
2002 {
2003 	isremote = isremote ? 1 : 0;
2004 
2005 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
2006 	     io + RING_BUS_CTRL_B);
2007 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
2008 	     io + SDO_OUT_DEST_CTRL);
2009 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
2010 	     io + SDO_IN_DEST_CTRL);
2011 }
2012 
2013 /*
2014  * hack, returns non zero on err
2015  */
2016 static int snd_m3_try_read_vendor(struct snd_m3 *chip)
2017 {
2018 	u16 ret;
2019 
2020 	if (snd_m3_ac97_wait(chip))
2021 		return 1;
2022 
2023 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
2024 
2025 	if (snd_m3_ac97_wait(chip))
2026 		return 1;
2027 
2028 	ret = snd_m3_inw(chip, 0x32);
2029 
2030 	return (ret == 0) || (ret == 0xffff);
2031 }
2032 
2033 static void snd_m3_ac97_reset(struct snd_m3 *chip)
2034 {
2035 	u16 dir;
2036 	int delay1 = 0, delay2 = 0, i;
2037 	int io = chip->iobase;
2038 
2039 	if (chip->allegro_flag) {
2040 		/*
2041 		 * the onboard codec on the allegro seems
2042 		 * to want to wait a very long time before
2043 		 * coming back to life
2044 		 */
2045 		delay1 = 50;
2046 		delay2 = 800;
2047 	} else {
2048 		/* maestro3 */
2049 		delay1 = 20;
2050 		delay2 = 500;
2051 	}
2052 
2053 	for (i = 0; i < 5; i++) {
2054 		dir = inw(io + GPIO_DIRECTION);
2055 		if (! chip->quirk || ! chip->quirk->irda_workaround)
2056 			dir |= 0x10; /* assuming pci bus master? */
2057 
2058 		snd_m3_remote_codec_config(io, 0);
2059 
2060 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2061 		udelay(20);
2062 
2063 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2064 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2065 		outw(0, io + GPIO_DATA);
2066 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2067 
2068 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));
2069 
2070 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2071 		udelay(5);
2072 		/* ok, bring back the ac-link */
2073 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2074 		outw(~0, io + GPIO_MASK);
2075 
2076 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));
2077 
2078 		if (! snd_m3_try_read_vendor(chip))
2079 			break;
2080 
2081 		delay1 += 10;
2082 		delay2 += 100;
2083 
2084 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2085 			   delay1, delay2);
2086 	}
2087 
2088 #if 0
2089 	/* more gung-ho reset that doesn't
2090 	 * seem to work anywhere :)
2091 	 */
2092 	tmp = inw(io + RING_BUS_CTRL_A);
2093 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2094 	msleep(20);
2095 	outw(tmp, io + RING_BUS_CTRL_A);
2096 	msleep(50);
2097 #endif
2098 }
2099 
2100 static int __devinit snd_m3_mixer(struct snd_m3 *chip)
2101 {
2102 	struct snd_ac97_bus *pbus;
2103 	struct snd_ac97_template ac97;
2104 	struct snd_ctl_elem_id id;
2105 	int err;
2106 	static struct snd_ac97_bus_ops ops = {
2107 		.write = snd_m3_ac97_write,
2108 		.read = snd_m3_ac97_read,
2109 	};
2110 
2111 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2112 		return err;
2113 
2114 	memset(&ac97, 0, sizeof(ac97));
2115 	ac97.private_data = chip;
2116 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2117 		return err;
2118 
2119 	/* seems ac97 PCM needs initialization.. hack hack.. */
2120 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2121 	schedule_timeout_uninterruptible(msecs_to_jiffies(100));
2122 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2123 
2124 	memset(&id, 0, sizeof(id));
2125 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2126 	strcpy(id.name, "Master Playback Switch");
2127 	chip->master_switch = snd_ctl_find_id(chip->card, &id);
2128 	memset(&id, 0, sizeof(id));
2129 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2130 	strcpy(id.name, "Master Playback Volume");
2131 	chip->master_volume = snd_ctl_find_id(chip->card, &id);
2132 
2133 	return 0;
2134 }
2135 
2136 
2137 /*
2138  * DSP Code images
2139  */
2140 
2141 static const u16 assp_kernel_image[] __devinitdata = {
2142     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2143     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2144     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2145     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2146     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2147     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2148     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2149     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2150     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2151     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2152     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2153     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2154     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2155     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2156     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2157     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2158     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2159     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2160     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2161     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2162     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2163     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2164     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2165     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2166     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2167     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2168     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2169     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2170     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2171     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2172     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2173     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2174     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2175     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2176     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2177     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2178     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2179     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2180     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2181     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2182     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2183     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2184     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2185     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2186     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2187     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2188     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2189     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2190     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2191     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2192     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2193     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2194     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2195     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2196     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2197     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2198     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2199     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2200     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2201     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2202     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2203     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2204     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2205     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2206     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2207     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2208     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2209     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2210     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2211     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2212     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2213     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2214     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2215     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2216     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2217     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2218     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2219     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2220     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2221     0xBE3A,
2222 };
2223 
2224 /*
2225  * Mini sample rate converter code image
2226  * that is to be loaded at 0x400 on the DSP.
2227  */
2228 static const u16 assp_minisrc_image[] __devinitdata = {
2229 
2230     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2231     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2232     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2233     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2234     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2235     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2236     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2237     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2238     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2239     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2240     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2241     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2242     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2243     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2244     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2245     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2246     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2247     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2248     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2249     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2250     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2251     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2252     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2253     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2254     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2255     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2256     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2257     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2258     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2259     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2260     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2261     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2262     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2263 };
2264 
2265 
2266 /*
2267  * initialize ASSP
2268  */
2269 
2270 #define MINISRC_LPF_LEN 10
2271 static const u16 minisrc_lpf[MINISRC_LPF_LEN] __devinitdata = {
2272 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2273 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2274 };
2275 
2276 static void __devinit snd_m3_assp_init(struct snd_m3 *chip)
2277 {
2278 	unsigned int i;
2279 
2280 	/* zero kernel data */
2281 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2282 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2283 				  KDATA_BASE_ADDR + i, 0);
2284 
2285 	/* zero mixer data? */
2286 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2287 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2288 				  KDATA_BASE_ADDR2 + i, 0);
2289 
2290 	/* init dma pointer */
2291 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2292 			  KDATA_CURRENT_DMA,
2293 			  KDATA_DMA_XFER0);
2294 
2295 	/* write kernel into code memory.. */
2296 	for (i = 0 ; i < ARRAY_SIZE(assp_kernel_image); i++) {
2297 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2298 				  REV_B_CODE_MEMORY_BEGIN + i,
2299 				  assp_kernel_image[i]);
2300 	}
2301 
2302 	/*
2303 	 * We only have this one client and we know that 0x400
2304 	 * is free in our kernel's mem map, so lets just
2305 	 * drop it there.  It seems that the minisrc doesn't
2306 	 * need vectors, so we won't bother with them..
2307 	 */
2308 	for (i = 0; i < ARRAY_SIZE(assp_minisrc_image); i++) {
2309 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2310 				  0x400 + i,
2311 				  assp_minisrc_image[i]);
2312 	}
2313 
2314 	/*
2315 	 * write the coefficients for the low pass filter?
2316 	 */
2317 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2318 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2319 				  0x400 + MINISRC_COEF_LOC + i,
2320 				  minisrc_lpf[i]);
2321 	}
2322 
2323 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2324 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2325 			  0x8000);
2326 
2327 	/*
2328 	 * the minisrc is the only thing on
2329 	 * our task list..
2330 	 */
2331 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2332 			  KDATA_TASK0,
2333 			  0x400);
2334 
2335 	/*
2336 	 * init the mixer number..
2337 	 */
2338 
2339 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2340 			  KDATA_MIXER_TASK_NUMBER,0);
2341 
2342 	/*
2343 	 * EXTREME KERNEL MASTER VOLUME
2344 	 */
2345 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2346 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2347 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2348 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2349 
2350 	chip->mixer_list.curlen = 0;
2351 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2352 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2353 	chip->adc1_list.curlen = 0;
2354 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2355 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2356 	chip->dma_list.curlen = 0;
2357 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2358 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2359 	chip->msrc_list.curlen = 0;
2360 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2361 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2362 }
2363 
2364 
2365 static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
2366 {
2367 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2368 			       MINISRC_IN_BUFFER_SIZE / 2 +
2369 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2370 	int address, i;
2371 
2372 	/*
2373 	 * the revb memory map has 0x1100 through 0x1c00
2374 	 * free.
2375 	 */
2376 
2377 	/*
2378 	 * align instance address to 256 bytes so that its
2379 	 * shifted list address is aligned.
2380 	 * list address = (mem address >> 1) >> 7;
2381 	 */
2382 	data_bytes = (data_bytes + 255) & ~255;
2383 	address = 0x1100 + ((data_bytes/2) * index);
2384 
2385 	if ((address + (data_bytes/2)) >= 0x1c00) {
2386 		snd_printk(KERN_ERR "no memory for %d bytes at ind %d (addr 0x%x)\n",
2387 			   data_bytes, index, address);
2388 		return -ENOMEM;
2389 	}
2390 
2391 	s->number = index;
2392 	s->inst.code = 0x400;
2393 	s->inst.data = address;
2394 
2395 	for (i = data_bytes / 2; i > 0; address++, i--) {
2396 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2397 				  address, 0);
2398 	}
2399 
2400 	return 0;
2401 }
2402 
2403 
2404 /*
2405  * this works for the reference board, have to find
2406  * out about others
2407  *
2408  * this needs more magic for 4 speaker, but..
2409  */
2410 static void
2411 snd_m3_amp_enable(struct snd_m3 *chip, int enable)
2412 {
2413 	int io = chip->iobase;
2414 	u16 gpo, polarity;
2415 
2416 	if (! chip->external_amp)
2417 		return;
2418 
2419 	polarity = enable ? 0 : 1;
2420 	polarity = polarity << chip->amp_gpio;
2421 	gpo = 1 << chip->amp_gpio;
2422 
2423 	outw(~gpo, io + GPIO_MASK);
2424 
2425 	outw(inw(io + GPIO_DIRECTION) | gpo,
2426 	     io + GPIO_DIRECTION);
2427 
2428 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2429 	     io + GPIO_DATA);
2430 
2431 	outw(0xffff, io + GPIO_MASK);
2432 }
2433 
2434 static int
2435 snd_m3_chip_init(struct snd_m3 *chip)
2436 {
2437 	struct pci_dev *pcidev = chip->pci;
2438 	unsigned long io = chip->iobase;
2439 	u32 n;
2440 	u16 w;
2441 	u8 t; /* makes as much sense as 'n', no? */
2442 
2443 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2444 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2445 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2446 	       DISABLE_LEGACY);
2447 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2448 
2449 	if (chip->hv_quirk && chip->hv_quirk->is_omnibook) {
2450 		/*
2451 		 * Volume buttons on some HP OmniBook laptops don't work
2452 		 * correctly. This makes them work for the most part.
2453 		 *
2454 		 * Volume up and down buttons on the laptop side work.
2455 		 * Fn+cursor_up (volme up) works.
2456 		 * Fn+cursor_down (volume down) doesn't work.
2457 		 * Fn+F7 (mute) works acts as volume up.
2458 		 */
2459 		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
2460 		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
2461 		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
2462 		outw(0xffff, io + GPIO_MASK);
2463 	}
2464 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2465 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2466 	if (chip->hv_quirk)
2467 		n |= chip->hv_quirk->config;
2468 	/* For some reason we must always use reduced debounce. */
2469 	n |= REDUCED_DEBOUNCE;
2470 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2471 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2472 
2473 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2474 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2475 	n &= ~INT_CLK_SELECT;
2476 	if (!chip->allegro_flag) {
2477 		n &= ~INT_CLK_MULT_ENABLE;
2478 		n |= INT_CLK_SRC_NOT_PCI;
2479 	}
2480 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2481 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2482 
2483 	if (chip->allegro_flag) {
2484 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2485 		n |= IN_CLK_12MHZ_SELECT;
2486 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2487 	}
2488 
2489 	t = inb(chip->iobase + ASSP_CONTROL_A);
2490 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2491 	t |= ASSP_CLK_49MHZ_SELECT;
2492 	t |= ASSP_0_WS_ENABLE;
2493 	outb(t, chip->iobase + ASSP_CONTROL_A);
2494 
2495 	snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
2496 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2497 
2498 	outb(0x00, io + HARDWARE_VOL_CTRL);
2499 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2500 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2501 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2502 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2503 
2504 	return 0;
2505 }
2506 
2507 static void
2508 snd_m3_enable_ints(struct snd_m3 *chip)
2509 {
2510 	unsigned long io = chip->iobase;
2511 	unsigned short val;
2512 
2513 	/* TODO: MPU401 not supported yet */
2514 	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2515 	if (chip->hv_quirk && (chip->hv_quirk->config & HV_CTRL_ENABLE))
2516 		val |= HV_INT_ENABLE;
2517 	outw(val, io + HOST_INT_CTRL);
2518 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2519 	     io + ASSP_CONTROL_C);
2520 }
2521 
2522 
2523 /*
2524  */
2525 
2526 static int snd_m3_free(struct snd_m3 *chip)
2527 {
2528 	struct m3_dma *s;
2529 	int i;
2530 
2531 	if (chip->substreams) {
2532 		spin_lock_irq(&chip->reg_lock);
2533 		for (i = 0; i < chip->num_substreams; i++) {
2534 			s = &chip->substreams[i];
2535 			/* check surviving pcms; this should not happen though.. */
2536 			if (s->substream && s->running)
2537 				snd_m3_pcm_stop(chip, s, s->substream);
2538 		}
2539 		spin_unlock_irq(&chip->reg_lock);
2540 		kfree(chip->substreams);
2541 	}
2542 	if (chip->iobase) {
2543 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2544 	}
2545 
2546 #ifdef CONFIG_PM
2547 	vfree(chip->suspend_mem);
2548 #endif
2549 
2550 	if (chip->irq >= 0) {
2551 		synchronize_irq(chip->irq);
2552 		free_irq(chip->irq, chip);
2553 	}
2554 
2555 	if (chip->iobase)
2556 		pci_release_regions(chip->pci);
2557 
2558 	pci_disable_device(chip->pci);
2559 	kfree(chip);
2560 	return 0;
2561 }
2562 
2563 
2564 /*
2565  * APM support
2566  */
2567 #ifdef CONFIG_PM
2568 static int m3_suspend(struct pci_dev *pci, pm_message_t state)
2569 {
2570 	struct snd_card *card = pci_get_drvdata(pci);
2571 	struct snd_m3 *chip = card->private_data;
2572 	int i, index;
2573 
2574 	if (chip->suspend_mem == NULL)
2575 		return 0;
2576 
2577 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2578 	snd_pcm_suspend_all(chip->pcm);
2579 	snd_ac97_suspend(chip->ac97);
2580 
2581 	msleep(10); /* give the assp a chance to idle.. */
2582 
2583 	snd_m3_assp_halt(chip);
2584 
2585 	/* save dsp image */
2586 	index = 0;
2587 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2588 		chip->suspend_mem[index++] =
2589 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2590 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2591 		chip->suspend_mem[index++] =
2592 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2593 
2594 	/* power down apci registers */
2595 	snd_m3_outw(chip, 0xffff, 0x54);
2596 	snd_m3_outw(chip, 0xffff, 0x56);
2597 
2598 	pci_disable_device(pci);
2599 	pci_save_state(pci);
2600 	return 0;
2601 }
2602 
2603 static int m3_resume(struct pci_dev *pci)
2604 {
2605 	struct snd_card *card = pci_get_drvdata(pci);
2606 	struct snd_m3 *chip = card->private_data;
2607 	int i, index;
2608 
2609 	if (chip->suspend_mem == NULL)
2610 		return 0;
2611 
2612 	pci_restore_state(pci);
2613 	pci_enable_device(pci);
2614 	pci_set_master(pci);
2615 
2616 	/* first lets just bring everything back. .*/
2617 	snd_m3_outw(chip, 0, 0x54);
2618 	snd_m3_outw(chip, 0, 0x56);
2619 
2620 	snd_m3_chip_init(chip);
2621 	snd_m3_assp_halt(chip);
2622 	snd_m3_ac97_reset(chip);
2623 
2624 	/* restore dsp image */
2625 	index = 0;
2626 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2627 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2628 				  chip->suspend_mem[index++]);
2629 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2630 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2631 				  chip->suspend_mem[index++]);
2632 
2633 	/* tell the dma engine to restart itself */
2634 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2635 			  KDATA_DMA_ACTIVE, 0);
2636 
2637         /* restore ac97 registers */
2638 	snd_ac97_resume(chip->ac97);
2639 
2640 	snd_m3_assp_continue(chip);
2641 	snd_m3_enable_ints(chip);
2642 	snd_m3_amp_enable(chip, 1);
2643 
2644 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2645 	return 0;
2646 }
2647 #endif /* CONFIG_PM */
2648 
2649 
2650 /*
2651  */
2652 
2653 static int snd_m3_dev_free(struct snd_device *device)
2654 {
2655 	struct snd_m3 *chip = device->device_data;
2656 	return snd_m3_free(chip);
2657 }
2658 
2659 static int __devinit
2660 snd_m3_create(struct snd_card *card, struct pci_dev *pci,
2661 	      int enable_amp,
2662 	      int amp_gpio,
2663 	      struct snd_m3 **chip_ret)
2664 {
2665 	struct snd_m3 *chip;
2666 	int i, err;
2667 	const struct m3_quirk *quirk;
2668 	const struct m3_hv_quirk *hv_quirk;
2669 	static struct snd_device_ops ops = {
2670 		.dev_free =	snd_m3_dev_free,
2671 	};
2672 
2673 	*chip_ret = NULL;
2674 
2675 	if (pci_enable_device(pci))
2676 		return -EIO;
2677 
2678 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2679 	if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
2680 	    pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
2681 		snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
2682 		pci_disable_device(pci);
2683 		return -ENXIO;
2684 	}
2685 
2686 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2687 	if (chip == NULL) {
2688 		pci_disable_device(pci);
2689 		return -ENOMEM;
2690 	}
2691 
2692 	spin_lock_init(&chip->reg_lock);
2693 	spin_lock_init(&chip->ac97_lock);
2694 
2695 	switch (pci->device) {
2696 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2697 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2698 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2699 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2700 		chip->allegro_flag = 1;
2701 		break;
2702 	}
2703 
2704 	chip->card = card;
2705 	chip->pci = pci;
2706 	chip->irq = -1;
2707 
2708 	for (quirk = m3_quirk_list; quirk->vendor; quirk++) {
2709 		if (pci->subsystem_vendor == quirk->vendor &&
2710 		    pci->subsystem_device == quirk->device) {
2711 			printk(KERN_INFO "maestro3: enabled hack for '%s'\n", quirk->name);
2712 			chip->quirk = quirk;
2713 			break;
2714 		}
2715 	}
2716 
2717 	for (hv_quirk = m3_hv_quirk_list; hv_quirk->vendor; hv_quirk++) {
2718 		if (pci->vendor == hv_quirk->vendor &&
2719 		    pci->device == hv_quirk->device &&
2720 		    pci->subsystem_vendor == hv_quirk->subsystem_vendor &&
2721 		    pci->subsystem_device == hv_quirk->subsystem_device) {
2722 			chip->hv_quirk = hv_quirk;
2723 			break;
2724 		}
2725 	}
2726 
2727 	chip->external_amp = enable_amp;
2728 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2729 		chip->amp_gpio = amp_gpio;
2730 	else if (chip->quirk && chip->quirk->amp_gpio >= 0)
2731 		chip->amp_gpio = chip->quirk->amp_gpio;
2732 	else if (chip->allegro_flag)
2733 		chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2734 	else /* presumably this is for all 'maestro3's.. */
2735 		chip->amp_gpio = GPO_EXT_AMP_M3;
2736 
2737 	chip->num_substreams = NR_DSPS;
2738 	chip->substreams = kcalloc(chip->num_substreams, sizeof(struct m3_dma),
2739 				   GFP_KERNEL);
2740 	if (chip->substreams == NULL) {
2741 		kfree(chip);
2742 		pci_disable_device(pci);
2743 		return -ENOMEM;
2744 	}
2745 
2746 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2747 		snd_m3_free(chip);
2748 		return err;
2749 	}
2750 	chip->iobase = pci_resource_start(pci, 0);
2751 
2752 	/* just to be sure */
2753 	pci_set_master(pci);
2754 
2755 	snd_m3_chip_init(chip);
2756 	snd_m3_assp_halt(chip);
2757 
2758 	snd_m3_ac97_reset(chip);
2759 
2760 	snd_m3_amp_enable(chip, 1);
2761 
2762 	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);
2763 
2764 	if (request_irq(pci->irq, snd_m3_interrupt, SA_INTERRUPT|SA_SHIRQ,
2765 			card->driver, chip)) {
2766 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2767 		snd_m3_free(chip);
2768 		return -ENOMEM;
2769 	}
2770 	chip->irq = pci->irq;
2771 
2772 #ifdef CONFIG_PM
2773 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2774 	if (chip->suspend_mem == NULL)
2775 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2776 #endif
2777 
2778 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2779 		snd_m3_free(chip);
2780 		return err;
2781 	}
2782 
2783 	if ((err = snd_m3_mixer(chip)) < 0)
2784 		return err;
2785 
2786 	for (i = 0; i < chip->num_substreams; i++) {
2787 		struct m3_dma *s = &chip->substreams[i];
2788 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2789 			return err;
2790 	}
2791 
2792 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2793 		return err;
2794 
2795 	snd_m3_enable_ints(chip);
2796 	snd_m3_assp_continue(chip);
2797 
2798 	snd_card_set_dev(card, &pci->dev);
2799 
2800 	*chip_ret = chip;
2801 
2802 	return 0;
2803 }
2804 
2805 /*
2806  */
2807 static int __devinit
2808 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2809 {
2810 	static int dev;
2811 	struct snd_card *card;
2812 	struct snd_m3 *chip;
2813 	int err;
2814 
2815 	/* don't pick up modems */
2816 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2817 		return -ENODEV;
2818 
2819 	if (dev >= SNDRV_CARDS)
2820 		return -ENODEV;
2821 	if (!enable[dev]) {
2822 		dev++;
2823 		return -ENOENT;
2824 	}
2825 
2826 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2827 	if (card == NULL)
2828 		return -ENOMEM;
2829 
2830 	switch (pci->device) {
2831 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2832 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2833 		strcpy(card->driver, "Allegro");
2834 		break;
2835 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2836 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2837 		strcpy(card->driver, "Canyon3D-2");
2838 		break;
2839 	default:
2840 		strcpy(card->driver, "Maestro3");
2841 		break;
2842 	}
2843 
2844 	if ((err = snd_m3_create(card, pci,
2845 				 external_amp[dev],
2846 				 amp_gpio[dev],
2847 				 &chip)) < 0) {
2848 		snd_card_free(card);
2849 		return err;
2850 	}
2851 	card->private_data = chip;
2852 
2853 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2854 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2855 		card->shortname, chip->iobase, chip->irq);
2856 
2857 	if ((err = snd_card_register(card)) < 0) {
2858 		snd_card_free(card);
2859 		return err;
2860 	}
2861 
2862 #if 0 /* TODO: not supported yet */
2863 	/* TODO enable MIDI IRQ and I/O */
2864 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2865 				  chip->iobase + MPU401_DATA_PORT, 1,
2866 				  chip->irq, 0, &chip->rmidi);
2867 	if (err < 0)
2868 		printk(KERN_WARNING "maestro3: no MIDI support.\n");
2869 #endif
2870 
2871 	pci_set_drvdata(pci, card);
2872 	dev++;
2873 	return 0;
2874 }
2875 
2876 static void __devexit snd_m3_remove(struct pci_dev *pci)
2877 {
2878 	snd_card_free(pci_get_drvdata(pci));
2879 	pci_set_drvdata(pci, NULL);
2880 }
2881 
2882 static struct pci_driver driver = {
2883 	.name = "Maestro3",
2884 	.id_table = snd_m3_ids,
2885 	.probe = snd_m3_probe,
2886 	.remove = __devexit_p(snd_m3_remove),
2887 #ifdef CONFIG_PM
2888 	.suspend = m3_suspend,
2889 	.resume = m3_resume,
2890 #endif
2891 };
2892 
2893 static int __init alsa_card_m3_init(void)
2894 {
2895 	return pci_register_driver(&driver);
2896 }
2897 
2898 static void __exit alsa_card_m3_exit(void)
2899 {
2900 	pci_unregister_driver(&driver);
2901 }
2902 
2903 module_init(alsa_card_m3_init)
2904 module_exit(alsa_card_m3_exit)
2905