xref: /linux/sound/pci/maestro3.c (revision 13abf8130139c2ccd4962a7e5a8902be5e6cb5a7)
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/slab.h>
41 #include <linux/vmalloc.h>
42 #include <linux/moduleparam.h>
43 #include <sound/core.h>
44 #include <sound/info.h>
45 #include <sound/control.h>
46 #include <sound/pcm.h>
47 #include <sound/mpu401.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/initval.h>
50 
51 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
52 MODULE_DESCRIPTION("ESS Maestro3 PCI");
53 MODULE_LICENSE("GPL");
54 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
55 		"{ESS,ES1988},"
56 		"{ESS,Allegro PCI},"
57 		"{ESS,Allegro-1 PCI},"
58 	        "{ESS,Canyon3D-2/LE PCI}}");
59 
60 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
61 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
62 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
63 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
64 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
65 
66 module_param_array(index, int, NULL, 0444);
67 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
68 module_param_array(id, charp, NULL, 0444);
69 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
70 module_param_array(enable, bool, NULL, 0444);
71 MODULE_PARM_DESC(enable, "Enable this soundcard.");
72 module_param_array(external_amp, bool, NULL, 0444);
73 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
74 module_param_array(amp_gpio, int, NULL, 0444);
75 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
76 
77 #define MAX_PLAYBACKS	2
78 #define MAX_CAPTURES	1
79 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
80 
81 
82 /*
83  * maestro3 registers
84  */
85 
86 /* Allegro PCI configuration registers */
87 #define PCI_LEGACY_AUDIO_CTRL   0x40
88 #define SOUND_BLASTER_ENABLE    0x00000001
89 #define FM_SYNTHESIS_ENABLE     0x00000002
90 #define GAME_PORT_ENABLE        0x00000004
91 #define MPU401_IO_ENABLE        0x00000008
92 #define MPU401_IRQ_ENABLE       0x00000010
93 #define ALIAS_10BIT_IO          0x00000020
94 #define SB_DMA_MASK             0x000000C0
95 #define SB_DMA_0                0x00000040
96 #define SB_DMA_1                0x00000040
97 #define SB_DMA_R                0x00000080
98 #define SB_DMA_3                0x000000C0
99 #define SB_IRQ_MASK             0x00000700
100 #define SB_IRQ_5                0x00000000
101 #define SB_IRQ_7                0x00000100
102 #define SB_IRQ_9                0x00000200
103 #define SB_IRQ_10               0x00000300
104 #define MIDI_IRQ_MASK           0x00003800
105 #define SERIAL_IRQ_ENABLE       0x00004000
106 #define DISABLE_LEGACY          0x00008000
107 
108 #define PCI_ALLEGRO_CONFIG      0x50
109 #define SB_ADDR_240             0x00000004
110 #define MPU_ADDR_MASK           0x00000018
111 #define MPU_ADDR_330            0x00000000
112 #define MPU_ADDR_300            0x00000008
113 #define MPU_ADDR_320            0x00000010
114 #define MPU_ADDR_340            0x00000018
115 #define USE_PCI_TIMING          0x00000040
116 #define POSTED_WRITE_ENABLE     0x00000080
117 #define DMA_POLICY_MASK         0x00000700
118 #define DMA_DDMA                0x00000000
119 #define DMA_TDMA                0x00000100
120 #define DMA_PCPCI               0x00000200
121 #define DMA_WBDMA16             0x00000400
122 #define DMA_WBDMA4              0x00000500
123 #define DMA_WBDMA2              0x00000600
124 #define DMA_WBDMA1              0x00000700
125 #define DMA_SAFE_GUARD          0x00000800
126 #define HI_PERF_GP_ENABLE       0x00001000
127 #define PIC_SNOOP_MODE_0        0x00002000
128 #define PIC_SNOOP_MODE_1        0x00004000
129 #define SOUNDBLASTER_IRQ_MASK   0x00008000
130 #define RING_IN_ENABLE          0x00010000
131 #define SPDIF_TEST_MODE         0x00020000
132 #define CLK_MULT_MODE_SELECT_2  0x00040000
133 #define EEPROM_WRITE_ENABLE     0x00080000
134 #define CODEC_DIR_IN            0x00100000
135 #define HV_BUTTON_FROM_GD       0x00200000
136 #define REDUCED_DEBOUNCE        0x00400000
137 #define HV_CTRL_ENABLE          0x00800000
138 #define SPDIF_ENABLE            0x01000000
139 #define CLK_DIV_SELECT          0x06000000
140 #define CLK_DIV_BY_48           0x00000000
141 #define CLK_DIV_BY_49           0x02000000
142 #define CLK_DIV_BY_50           0x04000000
143 #define CLK_DIV_RESERVED        0x06000000
144 #define PM_CTRL_ENABLE          0x08000000
145 #define CLK_MULT_MODE_SELECT    0x30000000
146 #define CLK_MULT_MODE_SHIFT     28
147 #define CLK_MULT_MODE_0         0x00000000
148 #define CLK_MULT_MODE_1         0x10000000
149 #define CLK_MULT_MODE_2         0x20000000
150 #define CLK_MULT_MODE_3         0x30000000
151 #define INT_CLK_SELECT          0x40000000
152 #define INT_CLK_MULT_RESET      0x80000000
153 
154 /* M3 */
155 #define INT_CLK_SRC_NOT_PCI     0x00100000
156 #define INT_CLK_MULT_ENABLE     0x80000000
157 
158 #define PCI_ACPI_CONTROL        0x54
159 #define PCI_ACPI_D0             0x00000000
160 #define PCI_ACPI_D1             0xB4F70000
161 #define PCI_ACPI_D2             0xB4F7B4F7
162 
163 #define PCI_USER_CONFIG         0x58
164 #define EXT_PCI_MASTER_ENABLE   0x00000001
165 #define SPDIF_OUT_SELECT        0x00000002
166 #define TEST_PIN_DIR_CTRL       0x00000004
167 #define AC97_CODEC_TEST         0x00000020
168 #define TRI_STATE_BUFFER        0x00000080
169 #define IN_CLK_12MHZ_SELECT     0x00000100
170 #define MULTI_FUNC_DISABLE      0x00000200
171 #define EXT_MASTER_PAIR_SEL     0x00000400
172 #define PCI_MASTER_SUPPORT      0x00000800
173 #define STOP_CLOCK_ENABLE       0x00001000
174 #define EAPD_DRIVE_ENABLE       0x00002000
175 #define REQ_TRI_STATE_ENABLE    0x00004000
176 #define REQ_LOW_ENABLE          0x00008000
177 #define MIDI_1_ENABLE           0x00010000
178 #define MIDI_2_ENABLE           0x00020000
179 #define SB_AUDIO_SYNC           0x00040000
180 #define HV_CTRL_TEST            0x00100000
181 #define SOUNDBLASTER_TEST       0x00400000
182 
183 #define PCI_USER_CONFIG_C       0x5C
184 
185 #define PCI_DDMA_CTRL           0x60
186 #define DDMA_ENABLE             0x00000001
187 
188 
189 /* Allegro registers */
190 #define HOST_INT_CTRL           0x18
191 #define SB_INT_ENABLE           0x0001
192 #define MPU401_INT_ENABLE       0x0002
193 #define ASSP_INT_ENABLE         0x0010
194 #define RING_INT_ENABLE         0x0020
195 #define HV_INT_ENABLE           0x0040
196 #define CLKRUN_GEN_ENABLE       0x0100
197 #define HV_CTRL_TO_PME          0x0400
198 #define SOFTWARE_RESET_ENABLE   0x8000
199 
200 /*
201  * should be using the above defines, probably.
202  */
203 #define REGB_ENABLE_RESET               0x01
204 #define REGB_STOP_CLOCK                 0x10
205 
206 #define HOST_INT_STATUS         0x1A
207 #define SB_INT_PENDING          0x01
208 #define MPU401_INT_PENDING      0x02
209 #define ASSP_INT_PENDING        0x10
210 #define RING_INT_PENDING        0x20
211 #define HV_INT_PENDING          0x40
212 
213 #define HARDWARE_VOL_CTRL       0x1B
214 #define SHADOW_MIX_REG_VOICE    0x1C
215 #define HW_VOL_COUNTER_VOICE    0x1D
216 #define SHADOW_MIX_REG_MASTER   0x1E
217 #define HW_VOL_COUNTER_MASTER   0x1F
218 
219 #define CODEC_COMMAND           0x30
220 #define CODEC_READ_B            0x80
221 
222 #define CODEC_STATUS            0x30
223 #define CODEC_BUSY_B            0x01
224 
225 #define CODEC_DATA              0x32
226 
227 #define RING_BUS_CTRL_A         0x36
228 #define RAC_PME_ENABLE          0x0100
229 #define RAC_SDFS_ENABLE         0x0200
230 #define LAC_PME_ENABLE          0x0400
231 #define LAC_SDFS_ENABLE         0x0800
232 #define SERIAL_AC_LINK_ENABLE   0x1000
233 #define IO_SRAM_ENABLE          0x2000
234 #define IIS_INPUT_ENABLE        0x8000
235 
236 #define RING_BUS_CTRL_B         0x38
237 #define SECOND_CODEC_ID_MASK    0x0003
238 #define SPDIF_FUNC_ENABLE       0x0010
239 #define SECOND_AC_ENABLE        0x0020
240 #define SB_MODULE_INTF_ENABLE   0x0040
241 #define SSPE_ENABLE             0x0040
242 #define M3I_DOCK_ENABLE         0x0080
243 
244 #define SDO_OUT_DEST_CTRL       0x3A
245 #define COMMAND_ADDR_OUT        0x0003
246 #define PCM_LR_OUT_LOCAL        0x0000
247 #define PCM_LR_OUT_REMOTE       0x0004
248 #define PCM_LR_OUT_MUTE         0x0008
249 #define PCM_LR_OUT_BOTH         0x000C
250 #define LINE1_DAC_OUT_LOCAL     0x0000
251 #define LINE1_DAC_OUT_REMOTE    0x0010
252 #define LINE1_DAC_OUT_MUTE      0x0020
253 #define LINE1_DAC_OUT_BOTH      0x0030
254 #define PCM_CLS_OUT_LOCAL       0x0000
255 #define PCM_CLS_OUT_REMOTE      0x0040
256 #define PCM_CLS_OUT_MUTE        0x0080
257 #define PCM_CLS_OUT_BOTH        0x00C0
258 #define PCM_RLF_OUT_LOCAL       0x0000
259 #define PCM_RLF_OUT_REMOTE      0x0100
260 #define PCM_RLF_OUT_MUTE        0x0200
261 #define PCM_RLF_OUT_BOTH        0x0300
262 #define LINE2_DAC_OUT_LOCAL     0x0000
263 #define LINE2_DAC_OUT_REMOTE    0x0400
264 #define LINE2_DAC_OUT_MUTE      0x0800
265 #define LINE2_DAC_OUT_BOTH      0x0C00
266 #define HANDSET_OUT_LOCAL       0x0000
267 #define HANDSET_OUT_REMOTE      0x1000
268 #define HANDSET_OUT_MUTE        0x2000
269 #define HANDSET_OUT_BOTH        0x3000
270 #define IO_CTRL_OUT_LOCAL       0x0000
271 #define IO_CTRL_OUT_REMOTE      0x4000
272 #define IO_CTRL_OUT_MUTE        0x8000
273 #define IO_CTRL_OUT_BOTH        0xC000
274 
275 #define SDO_IN_DEST_CTRL        0x3C
276 #define STATUS_ADDR_IN          0x0003
277 #define PCM_LR_IN_LOCAL         0x0000
278 #define PCM_LR_IN_REMOTE        0x0004
279 #define PCM_LR_RESERVED         0x0008
280 #define PCM_LR_IN_BOTH          0x000C
281 #define LINE1_ADC_IN_LOCAL      0x0000
282 #define LINE1_ADC_IN_REMOTE     0x0010
283 #define LINE1_ADC_IN_MUTE       0x0020
284 #define MIC_ADC_IN_LOCAL        0x0000
285 #define MIC_ADC_IN_REMOTE       0x0040
286 #define MIC_ADC_IN_MUTE         0x0080
287 #define LINE2_DAC_IN_LOCAL      0x0000
288 #define LINE2_DAC_IN_REMOTE     0x0400
289 #define LINE2_DAC_IN_MUTE       0x0800
290 #define HANDSET_IN_LOCAL        0x0000
291 #define HANDSET_IN_REMOTE       0x1000
292 #define HANDSET_IN_MUTE         0x2000
293 #define IO_STATUS_IN_LOCAL      0x0000
294 #define IO_STATUS_IN_REMOTE     0x4000
295 
296 #define SPDIF_IN_CTRL           0x3E
297 #define SPDIF_IN_ENABLE         0x0001
298 
299 #define GPIO_DATA               0x60
300 #define GPIO_DATA_MASK          0x0FFF
301 #define GPIO_HV_STATUS          0x3000
302 #define GPIO_PME_STATUS         0x4000
303 
304 #define GPIO_MASK               0x64
305 #define GPIO_DIRECTION          0x68
306 #define GPO_PRIMARY_AC97        0x0001
307 #define GPI_LINEOUT_SENSE       0x0004
308 #define GPO_SECONDARY_AC97      0x0008
309 #define GPI_VOL_DOWN            0x0010
310 #define GPI_VOL_UP              0x0020
311 #define GPI_IIS_CLK             0x0040
312 #define GPI_IIS_LRCLK           0x0080
313 #define GPI_IIS_DATA            0x0100
314 #define GPI_DOCKING_STATUS      0x0100
315 #define GPI_HEADPHONE_SENSE     0x0200
316 #define GPO_EXT_AMP_SHUTDOWN    0x1000
317 
318 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
319 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
320 
321 /* M3 */
322 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
323 
324 #define ASSP_INDEX_PORT         0x80
325 #define ASSP_MEMORY_PORT        0x82
326 #define ASSP_DATA_PORT          0x84
327 
328 #define MPU401_DATA_PORT        0x98
329 #define MPU401_STATUS_PORT      0x99
330 
331 #define CLK_MULT_DATA_PORT      0x9C
332 
333 #define ASSP_CONTROL_A          0xA2
334 #define ASSP_0_WS_ENABLE        0x01
335 #define ASSP_CTRL_A_RESERVED1   0x02
336 #define ASSP_CTRL_A_RESERVED2   0x04
337 #define ASSP_CLK_49MHZ_SELECT   0x08
338 #define FAST_PLU_ENABLE         0x10
339 #define ASSP_CTRL_A_RESERVED3   0x20
340 #define DSP_CLK_36MHZ_SELECT    0x40
341 
342 #define ASSP_CONTROL_B          0xA4
343 #define RESET_ASSP              0x00
344 #define RUN_ASSP                0x01
345 #define ENABLE_ASSP_CLOCK       0x00
346 #define STOP_ASSP_CLOCK         0x10
347 #define RESET_TOGGLE            0x40
348 
349 #define ASSP_CONTROL_C          0xA6
350 #define ASSP_HOST_INT_ENABLE    0x01
351 #define FM_ADDR_REMAP_DISABLE   0x02
352 #define HOST_WRITE_PORT_ENABLE  0x08
353 
354 #define ASSP_HOST_INT_STATUS    0xAC
355 #define DSP2HOST_REQ_PIORECORD  0x01
356 #define DSP2HOST_REQ_I2SRATE    0x02
357 #define DSP2HOST_REQ_TIMER      0x04
358 
359 /* AC97 registers */
360 /* XXX fix this crap up */
361 /*#define AC97_RESET              0x00*/
362 
363 #define AC97_VOL_MUTE_B         0x8000
364 #define AC97_VOL_M              0x1F
365 #define AC97_LEFT_VOL_S         8
366 
367 #define AC97_MASTER_VOL         0x02
368 #define AC97_LINE_LEVEL_VOL     0x04
369 #define AC97_MASTER_MONO_VOL    0x06
370 #define AC97_PC_BEEP_VOL        0x0A
371 #define AC97_PC_BEEP_VOL_M      0x0F
372 #define AC97_SROUND_MASTER_VOL  0x38
373 #define AC97_PC_BEEP_VOL_S      1
374 
375 /*#define AC97_PHONE_VOL          0x0C
376 #define AC97_MIC_VOL            0x0E*/
377 #define AC97_MIC_20DB_ENABLE    0x40
378 
379 /*#define AC97_LINEIN_VOL         0x10
380 #define AC97_CD_VOL             0x12
381 #define AC97_VIDEO_VOL          0x14
382 #define AC97_AUX_VOL            0x16*/
383 #define AC97_PCM_OUT_VOL        0x18
384 /*#define AC97_RECORD_SELECT      0x1A*/
385 #define AC97_RECORD_MIC         0x00
386 #define AC97_RECORD_CD          0x01
387 #define AC97_RECORD_VIDEO       0x02
388 #define AC97_RECORD_AUX         0x03
389 #define AC97_RECORD_MONO_MUX    0x02
390 #define AC97_RECORD_DIGITAL     0x03
391 #define AC97_RECORD_LINE        0x04
392 #define AC97_RECORD_STEREO      0x05
393 #define AC97_RECORD_MONO        0x06
394 #define AC97_RECORD_PHONE       0x07
395 
396 /*#define AC97_RECORD_GAIN        0x1C*/
397 #define AC97_RECORD_VOL_M       0x0F
398 
399 /*#define AC97_GENERAL_PURPOSE    0x20*/
400 #define AC97_POWER_DOWN_CTRL    0x26
401 #define AC97_ADC_READY          0x0001
402 #define AC97_DAC_READY          0x0002
403 #define AC97_ANALOG_READY       0x0004
404 #define AC97_VREF_ON            0x0008
405 #define AC97_PR0                0x0100
406 #define AC97_PR1                0x0200
407 #define AC97_PR2                0x0400
408 #define AC97_PR3                0x0800
409 #define AC97_PR4                0x1000
410 
411 #define AC97_RESERVED1          0x28
412 
413 #define AC97_VENDOR_TEST        0x5A
414 
415 #define AC97_CLOCK_DELAY        0x5C
416 #define AC97_LINEOUT_MUX_SEL    0x0001
417 #define AC97_MONO_MUX_SEL       0x0002
418 #define AC97_CLOCK_DELAY_SEL    0x1F
419 #define AC97_DAC_CDS_SHIFT      6
420 #define AC97_ADC_CDS_SHIFT      11
421 
422 #define AC97_MULTI_CHANNEL_SEL  0x74
423 
424 /*#define AC97_VENDOR_ID1         0x7C
425 #define AC97_VENDOR_ID2         0x7E*/
426 
427 /*
428  * ASSP control regs
429  */
430 #define DSP_PORT_TIMER_COUNT    0x06
431 
432 #define DSP_PORT_MEMORY_INDEX   0x80
433 
434 #define DSP_PORT_MEMORY_TYPE    0x82
435 #define MEMTYPE_INTERNAL_CODE   0x0002
436 #define MEMTYPE_INTERNAL_DATA   0x0003
437 #define MEMTYPE_MASK            0x0003
438 
439 #define DSP_PORT_MEMORY_DATA    0x84
440 
441 #define DSP_PORT_CONTROL_REG_A  0xA2
442 #define DSP_PORT_CONTROL_REG_B  0xA4
443 #define DSP_PORT_CONTROL_REG_C  0xA6
444 
445 #define REV_A_CODE_MEMORY_BEGIN         0x0000
446 #define REV_A_CODE_MEMORY_END           0x0FFF
447 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
448 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
449 
450 #define REV_B_CODE_MEMORY_BEGIN         0x0000
451 #define REV_B_CODE_MEMORY_END           0x0BFF
452 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
453 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
454 
455 #define REV_A_DATA_MEMORY_BEGIN         0x1000
456 #define REV_A_DATA_MEMORY_END           0x2FFF
457 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
458 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
459 
460 #define REV_B_DATA_MEMORY_BEGIN         0x1000
461 #define REV_B_DATA_MEMORY_END           0x2BFF
462 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
463 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
464 
465 
466 #define NUM_UNITS_KERNEL_CODE          16
467 #define NUM_UNITS_KERNEL_DATA           2
468 
469 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
470 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
471 
472 /*
473  * Kernel data layout
474  */
475 
476 #define DP_SHIFT_COUNT                  7
477 
478 #define KDATA_BASE_ADDR                 0x1000
479 #define KDATA_BASE_ADDR2                0x1080
480 
481 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
482 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
483 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
484 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
485 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
486 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
487 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
488 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
489 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
490 
491 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
492 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
493 
494 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
495 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
496 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
497 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
498 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
499 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
500 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
501 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
502 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
503 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
504 
505 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
506 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
507 
508 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
509 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
510 
511 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
512 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
513 
514 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
515 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
516 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
517 
518 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
519 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
520 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
521 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
522 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
523 
524 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
525 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
526 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
527 
528 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
529 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
530 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
531 
532 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
533 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
534 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
535 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
536 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
537 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
538 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
539 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
540 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
541 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
542 
543 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
544 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
545 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
546 
547 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
548 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
549 
550 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
551 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
552 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
553 
554 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
555 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
556 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
557 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
558 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
559 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
560 
561 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
562 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
563 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
564 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
565 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
566 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
567 
568 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
569 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
570 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
571 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
572 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
573 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
574 
575 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
576 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
577 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
578 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
579 
580 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
581 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
582 
583 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
584 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
585 
586 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
587 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
588 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
589 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
590 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
591 
592 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
593 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
594 
595 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
596 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
597 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
598 
599 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
600 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
601 
602 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
603 
604 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
605 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
606 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
607 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
608 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
609 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
610 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
611 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
612 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
613 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
614 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
615 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
616 
617 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
618 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
619 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
620 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
621 
622 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
623 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
624 
625 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
626 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
627 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
628 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
629 
630 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
631 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
632 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
633 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
634 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
635 
636 /*
637  * second 'segment' (?) reserved for mixer
638  * buffers..
639  */
640 
641 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
642 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
643 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
644 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
645 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
646 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
647 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
648 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
649 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
650 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
651 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
652 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
653 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
654 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
655 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
656 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
657 
658 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
659 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
660 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
661 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
662 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
663 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
664 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
665 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
666 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
667 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
668 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
669 
670 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
671 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
672 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
673 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
674 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
675 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
676 
677 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
678 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
679 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
680 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
681 
682 /*
683  * client data area offsets
684  */
685 #define CDATA_INSTANCE_READY            0x00
686 
687 #define CDATA_HOST_SRC_ADDRL            0x01
688 #define CDATA_HOST_SRC_ADDRH            0x02
689 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
690 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
691 #define CDATA_HOST_SRC_CURRENTL         0x05
692 #define CDATA_HOST_SRC_CURRENTH         0x06
693 
694 #define CDATA_IN_BUF_CONNECT            0x07
695 #define CDATA_OUT_BUF_CONNECT           0x08
696 
697 #define CDATA_IN_BUF_BEGIN              0x09
698 #define CDATA_IN_BUF_END_PLUS_1         0x0A
699 #define CDATA_IN_BUF_HEAD               0x0B
700 #define CDATA_IN_BUF_TAIL               0x0C
701 #define CDATA_OUT_BUF_BEGIN             0x0D
702 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
703 #define CDATA_OUT_BUF_HEAD              0x0F
704 #define CDATA_OUT_BUF_TAIL              0x10
705 
706 #define CDATA_DMA_CONTROL               0x11
707 #define CDATA_RESERVED                  0x12
708 
709 #define CDATA_FREQUENCY                 0x13
710 #define CDATA_LEFT_VOLUME               0x14
711 #define CDATA_RIGHT_VOLUME              0x15
712 #define CDATA_LEFT_SUR_VOL              0x16
713 #define CDATA_RIGHT_SUR_VOL             0x17
714 
715 #define CDATA_HEADER_LEN                0x18
716 
717 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
718 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
719 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
720 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
721 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
722 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
723 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
724 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
725 
726 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
727 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
728 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
729 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
730 #define MINISRC_BIQUAD_STAGE    2
731 #define MINISRC_COEF_LOC          0x175
732 
733 #define DMACONTROL_BLOCK_MASK           0x000F
734 #define  DMAC_BLOCK0_SELECTOR           0x0000
735 #define  DMAC_BLOCK1_SELECTOR           0x0001
736 #define  DMAC_BLOCK2_SELECTOR           0x0002
737 #define  DMAC_BLOCK3_SELECTOR           0x0003
738 #define  DMAC_BLOCK4_SELECTOR           0x0004
739 #define  DMAC_BLOCK5_SELECTOR           0x0005
740 #define  DMAC_BLOCK6_SELECTOR           0x0006
741 #define  DMAC_BLOCK7_SELECTOR           0x0007
742 #define  DMAC_BLOCK8_SELECTOR           0x0008
743 #define  DMAC_BLOCK9_SELECTOR           0x0009
744 #define  DMAC_BLOCKA_SELECTOR           0x000A
745 #define  DMAC_BLOCKB_SELECTOR           0x000B
746 #define  DMAC_BLOCKC_SELECTOR           0x000C
747 #define  DMAC_BLOCKD_SELECTOR           0x000D
748 #define  DMAC_BLOCKE_SELECTOR           0x000E
749 #define  DMAC_BLOCKF_SELECTOR           0x000F
750 #define DMACONTROL_PAGE_MASK            0x00F0
751 #define  DMAC_PAGE0_SELECTOR            0x0030
752 #define  DMAC_PAGE1_SELECTOR            0x0020
753 #define  DMAC_PAGE2_SELECTOR            0x0010
754 #define  DMAC_PAGE3_SELECTOR            0x0000
755 #define DMACONTROL_AUTOREPEAT           0x1000
756 #define DMACONTROL_STOPPED              0x2000
757 #define DMACONTROL_DIRECTION            0x0100
758 
759 /*
760  * an arbitrary volume we set the internal
761  * volume settings to so that the ac97 volume
762  * range is a little less insane.  0x7fff is
763  * max.
764  */
765 #define ARB_VOLUME ( 0x6800 )
766 
767 /*
768  */
769 
770 typedef struct snd_m3_dma m3_dma_t;
771 typedef struct snd_m3 m3_t;
772 
773 /* quirk lists */
774 struct m3_quirk {
775 	const char *name;	/* device name */
776 	u16 vendor, device;	/* subsystem ids */
777 	int amp_gpio;		/* gpio pin #  for external amp, -1 = default */
778 	int irda_workaround;	/* non-zero if avoid to touch 0x10 on GPIO_DIRECTION
779 				   (e.g. for IrDA on Dell Inspirons) */
780 };
781 
782 struct m3_hv_quirk {
783 	u16 vendor, device, subsystem_vendor, subsystem_device;
784 	u32 config;		/* ALLEGRO_CONFIG hardware volume bits */
785 	int is_omnibook;	/* Do HP OmniBook GPIO magic? */
786 };
787 
788 struct m3_list {
789 	int curlen;
790 	int mem_addr;
791 	int max;
792 };
793 
794 struct snd_m3_dma {
795 
796 	int number;
797 	m3_t *chip;
798 	snd_pcm_substream_t *substream;
799 
800 	struct assp_instance {
801 		unsigned short code, data;
802 	} inst;
803 
804 	int running;
805 	int opened;
806 
807 	unsigned long buffer_addr;
808 	int dma_size;
809 	int period_size;
810 	unsigned int hwptr;
811 	int count;
812 
813 	int index[3];
814 	struct m3_list *index_list[3];
815 
816         int in_lists;
817 
818 	struct list_head list;
819 
820 };
821 
822 struct snd_m3 {
823 
824 	snd_card_t *card;
825 
826 	unsigned long iobase;
827 
828 	int irq;
829 	unsigned int allegro_flag : 1;
830 
831 	ac97_t *ac97;
832 
833 	snd_pcm_t *pcm;
834 
835 	struct pci_dev *pci;
836 	struct m3_quirk *quirk;
837 	struct m3_hv_quirk *hv_quirk;
838 
839 	int dacs_active;
840 	int timer_users;
841 
842 	struct m3_list  msrc_list;
843 	struct m3_list  mixer_list;
844 	struct m3_list  adc1_list;
845 	struct m3_list  dma_list;
846 
847 	/* for storing reset state..*/
848 	u8 reset_state;
849 
850 	int external_amp;
851 	int amp_gpio;
852 
853 	/* midi */
854 	snd_rawmidi_t *rmidi;
855 
856 	/* pcm streams */
857 	int num_substreams;
858 	m3_dma_t *substreams;
859 
860 	spinlock_t reg_lock;
861 	spinlock_t ac97_lock;
862 
863 	snd_kcontrol_t *master_switch;
864 	snd_kcontrol_t *master_volume;
865 	struct tasklet_struct hwvol_tq;
866 
867 #ifdef CONFIG_PM
868 	u16 *suspend_mem;
869 #endif
870 };
871 
872 /*
873  * pci ids
874  */
875 
876 #ifndef PCI_VENDOR_ID_ESS
877 #define PCI_VENDOR_ID_ESS         0x125D
878 #endif
879 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO_1
880 #define PCI_DEVICE_ID_ESS_ALLEGRO_1	0x1988
881 #endif
882 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO
883 #define PCI_DEVICE_ID_ESS_ALLEGRO	0x1989
884 #endif
885 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2LE
886 #define PCI_DEVICE_ID_ESS_CANYON3D_2LE	0x1990
887 #endif
888 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2
889 #define PCI_DEVICE_ID_ESS_CANYON3D_2	0x1992
890 #endif
891 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3
892 #define PCI_DEVICE_ID_ESS_MAESTRO3	0x1998
893 #endif
894 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_1
895 #define PCI_DEVICE_ID_ESS_MAESTRO3_1	0x1999
896 #endif
897 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_HW
898 #define PCI_DEVICE_ID_ESS_MAESTRO3_HW	0x199a
899 #endif
900 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_2
901 #define PCI_DEVICE_ID_ESS_MAESTRO3_2	0x199b
902 #endif
903 
904 static struct pci_device_id snd_m3_ids[] = {
905 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
906 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
907 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
908 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
909 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
910 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
911 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
912 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
913 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
914 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
915 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
916 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
917 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
918 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
919 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
920 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
921 	{0,},
922 };
923 
924 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
925 
926 static struct m3_quirk m3_quirk_list[] = {
927 	/* panasonic CF-28 "toughbook" */
928 	{
929 		.name = "Panasonic CF-28",
930 		.vendor = 0x10f7,
931 		.device = 0x833e,
932 		.amp_gpio = 0x0d,
933 	},
934 	/* panasonic CF-72 "toughbook" */
935 	{
936 		.name = "Panasonic CF-72",
937 		.vendor = 0x10f7,
938 		.device = 0x833d,
939 		.amp_gpio = 0x0d,
940 	},
941 	/* Dell Inspiron 4000 */
942 	{
943 		.name = "Dell Inspiron 4000",
944 		.vendor = 0x1028,
945 		.device = 0x00b0,
946 		.amp_gpio = -1,
947 		.irda_workaround = 1,
948 	},
949 	/* Dell Inspiron 8000 */
950 	{
951 		.name = "Dell Inspiron 8000",
952 		.vendor = 0x1028,
953 		.device = 0x00a4,
954 		.amp_gpio = -1,
955 		.irda_workaround = 1,
956 	},
957 	/* Dell Inspiron 8100 */
958 	{
959 		.name = "Dell Inspiron 8100",
960 		.vendor = 0x1028,
961 		.device = 0x00e6,
962 		.amp_gpio = -1,
963 		.irda_workaround = 1,
964 	},
965 	/* NEC LM800J/7 */
966 	{
967 		.name = "NEC LM800J/7",
968 		.vendor = 0x1033,
969 		.device = 0x80f1,
970 		.amp_gpio = 0x03,
971 	},
972 	/* LEGEND ZhaoYang 3100CF */
973 	{
974 		.name = "LEGEND ZhaoYang 3100CF",
975 		.vendor = 0x1509,
976 		.device = 0x1740,
977 		.amp_gpio = 0x03,
978 	},
979 	/* END */
980 	{ NULL }
981 };
982 
983 /* These values came from the Windows driver. */
984 static struct m3_hv_quirk m3_hv_quirk_list[] = {
985 	/* Allegro chips */
986 	{ 0x125D, 0x1988, 0x0E11, 0x002E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
987 	{ 0x125D, 0x1988, 0x0E11, 0x0094, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
988 	{ 0x125D, 0x1988, 0x0E11, 0xB112, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
989 	{ 0x125D, 0x1988, 0x0E11, 0xB114, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
990 	{ 0x125D, 0x1988, 0x103C, 0x0012, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
991 	{ 0x125D, 0x1988, 0x103C, 0x0018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
992 	{ 0x125D, 0x1988, 0x103C, 0x001C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
993 	{ 0x125D, 0x1988, 0x103C, 0x001D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
994 	{ 0x125D, 0x1988, 0x103C, 0x001E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
995 	{ 0x125D, 0x1988, 0x107B, 0x3350, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
996 	{ 0x125D, 0x1988, 0x10F7, 0x8338, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
997 	{ 0x125D, 0x1988, 0x10F7, 0x833C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
998 	{ 0x125D, 0x1988, 0x10F7, 0x833D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
999 	{ 0x125D, 0x1988, 0x10F7, 0x833E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1000 	{ 0x125D, 0x1988, 0x10F7, 0x833F, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1001 	{ 0x125D, 0x1988, 0x13BD, 0x1018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1002 	{ 0x125D, 0x1988, 0x13BD, 0x1019, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1003 	{ 0x125D, 0x1988, 0x13BD, 0x101A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1004 	{ 0x125D, 0x1988, 0x14FF, 0x0F03, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1005 	{ 0x125D, 0x1988, 0x14FF, 0x0F04, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1006 	{ 0x125D, 0x1988, 0x14FF, 0x0F05, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1007 	{ 0x125D, 0x1988, 0x156D, 0xB400, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1008 	{ 0x125D, 0x1988, 0x156D, 0xB795, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1009 	{ 0x125D, 0x1988, 0x156D, 0xB797, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1010 	{ 0x125D, 0x1988, 0x156D, 0xC700, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1011 	{ 0x125D, 0x1988, 0x1033, 0x80F1, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1012 	{ 0x125D, 0x1988, 0x103C, 0x001A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 }, /* HP OmniBook 6100 */
1013 	{ 0x125D, 0x1988, 0x107B, 0x340A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1014 	{ 0x125D, 0x1988, 0x107B, 0x3450, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1015 	{ 0x125D, 0x1988, 0x109F, 0x3134, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1016 	{ 0x125D, 0x1988, 0x109F, 0x3161, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1017 	{ 0x125D, 0x1988, 0x144D, 0x3280, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1018 	{ 0x125D, 0x1988, 0x144D, 0x3281, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1019 	{ 0x125D, 0x1988, 0x144D, 0xC002, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1020 	{ 0x125D, 0x1988, 0x144D, 0xC003, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1021 	{ 0x125D, 0x1988, 0x1509, 0x1740, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1022 	{ 0x125D, 0x1988, 0x1610, 0x0010, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1023 	{ 0x125D, 0x1988, 0x1042, 0x1042, HV_CTRL_ENABLE, 0 },
1024 	{ 0x125D, 0x1988, 0x107B, 0x9500, HV_CTRL_ENABLE, 0 },
1025 	{ 0x125D, 0x1988, 0x14FF, 0x0F06, HV_CTRL_ENABLE, 0 },
1026 	{ 0x125D, 0x1988, 0x1558, 0x8586, HV_CTRL_ENABLE, 0 },
1027 	{ 0x125D, 0x1988, 0x161F, 0x2011, HV_CTRL_ENABLE, 0 },
1028 	/* Maestro3 chips */
1029 	{ 0x125D, 0x1998, 0x103C, 0x000E, HV_CTRL_ENABLE, 0 },
1030 	{ 0x125D, 0x1998, 0x103C, 0x0010, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 6000 */
1031 	{ 0x125D, 0x1998, 0x103C, 0x0011, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 500 */
1032 	{ 0x125D, 0x1998, 0x103C, 0x001B, HV_CTRL_ENABLE, 0 },
1033 	{ 0x125D, 0x1998, 0x104D, 0x80A6, HV_CTRL_ENABLE, 0 },
1034 	{ 0x125D, 0x1998, 0x104D, 0x80AA, HV_CTRL_ENABLE, 0 },
1035 	{ 0x125D, 0x1998, 0x107B, 0x5300, HV_CTRL_ENABLE, 0 },
1036 	{ 0x125D, 0x1998, 0x110A, 0x1998, HV_CTRL_ENABLE, 0 },
1037 	{ 0x125D, 0x1998, 0x13BD, 0x1015, HV_CTRL_ENABLE, 0 },
1038 	{ 0x125D, 0x1998, 0x13BD, 0x101C, HV_CTRL_ENABLE, 0 },
1039 	{ 0x125D, 0x1998, 0x13BD, 0x1802, HV_CTRL_ENABLE, 0 },
1040 	{ 0x125D, 0x1998, 0x1599, 0x0715, HV_CTRL_ENABLE, 0 },
1041 	{ 0x125D, 0x1998, 0x5643, 0x5643, HV_CTRL_ENABLE, 0 },
1042 	{ 0x125D, 0x199A, 0x144D, 0x3260, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1043 	{ 0x125D, 0x199A, 0x144D, 0x3261, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1044 	{ 0x125D, 0x199A, 0x144D, 0xC000, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1045 	{ 0x125D, 0x199A, 0x144D, 0xC001, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1046 	{ 0 }
1047 };
1048 
1049 /*
1050  * lowlevel functions
1051  */
1052 
1053 static inline void snd_m3_outw(m3_t *chip, u16 value, unsigned long reg)
1054 {
1055 	outw(value, chip->iobase + reg);
1056 }
1057 
1058 static inline u16 snd_m3_inw(m3_t *chip, unsigned long reg)
1059 {
1060 	return inw(chip->iobase + reg);
1061 }
1062 
1063 static inline void snd_m3_outb(m3_t *chip, u8 value, unsigned long reg)
1064 {
1065 	outb(value, chip->iobase + reg);
1066 }
1067 
1068 static inline u8 snd_m3_inb(m3_t *chip, unsigned long reg)
1069 {
1070 	return inb(chip->iobase + reg);
1071 }
1072 
1073 /*
1074  * access 16bit words to the code or data regions of the dsp's memory.
1075  * index addresses 16bit words.
1076  */
1077 static u16 snd_m3_assp_read(m3_t *chip, u16 region, u16 index)
1078 {
1079 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1080 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1081 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1082 }
1083 
1084 static void snd_m3_assp_write(m3_t *chip, u16 region, u16 index, u16 data)
1085 {
1086 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1087 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1088 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1089 }
1090 
1091 static void snd_m3_assp_halt(m3_t *chip)
1092 {
1093 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1094 	msleep(10);
1095 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1096 }
1097 
1098 static void snd_m3_assp_continue(m3_t *chip)
1099 {
1100 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1101 }
1102 
1103 
1104 /*
1105  * This makes me sad. the maestro3 has lists
1106  * internally that must be packed.. 0 terminates,
1107  * apparently, or maybe all unused entries have
1108  * to be 0, the lists have static lengths set
1109  * by the binary code images.
1110  */
1111 
1112 static int snd_m3_add_list(m3_t *chip, struct m3_list *list, u16 val)
1113 {
1114 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1115 			  list->mem_addr + list->curlen,
1116 			  val);
1117 	return list->curlen++;
1118 }
1119 
1120 static void snd_m3_remove_list(m3_t *chip, struct m3_list *list, int index)
1121 {
1122 	u16  val;
1123 	int lastindex = list->curlen - 1;
1124 
1125 	if (index != lastindex) {
1126 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1127 				       list->mem_addr + lastindex);
1128 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1129 				  list->mem_addr + index,
1130 				  val);
1131 	}
1132 
1133 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1134 			  list->mem_addr + lastindex,
1135 			  0);
1136 
1137 	list->curlen--;
1138 }
1139 
1140 static void snd_m3_inc_timer_users(m3_t *chip)
1141 {
1142 	chip->timer_users++;
1143 	if (chip->timer_users != 1)
1144 		return;
1145 
1146 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1147 			  KDATA_TIMER_COUNT_RELOAD,
1148 			  240);
1149 
1150 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1151 			  KDATA_TIMER_COUNT_CURRENT,
1152 			  240);
1153 
1154 	snd_m3_outw(chip,
1155 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1156 		    HOST_INT_CTRL);
1157 }
1158 
1159 static void snd_m3_dec_timer_users(m3_t *chip)
1160 {
1161 	chip->timer_users--;
1162 	if (chip->timer_users > 0)
1163 		return;
1164 
1165 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1166 			  KDATA_TIMER_COUNT_RELOAD,
1167 			  0);
1168 
1169 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1170 			  KDATA_TIMER_COUNT_CURRENT,
1171 			  0);
1172 
1173 	snd_m3_outw(chip,
1174 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1175 		    HOST_INT_CTRL);
1176 }
1177 
1178 /*
1179  * start/stop
1180  */
1181 
1182 /* spinlock held! */
1183 static int snd_m3_pcm_start(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1184 {
1185 	if (! s || ! subs)
1186 		return -EINVAL;
1187 
1188 	snd_m3_inc_timer_users(chip);
1189 	switch (subs->stream) {
1190 	case SNDRV_PCM_STREAM_PLAYBACK:
1191 		chip->dacs_active++;
1192 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1193 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1194 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1195 				  KDATA_MIXER_TASK_NUMBER,
1196 				  chip->dacs_active);
1197 		break;
1198 	case SNDRV_PCM_STREAM_CAPTURE:
1199 		snd_m3_assp_write(s->chip, MEMTYPE_INTERNAL_DATA,
1200 				  KDATA_ADC1_REQUEST, 1);
1201 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1202 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1203 		break;
1204 	}
1205 	return 0;
1206 }
1207 
1208 /* spinlock held! */
1209 static int snd_m3_pcm_stop(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1210 {
1211 	if (! s || ! subs)
1212 		return -EINVAL;
1213 
1214 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1215 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1216 	snd_m3_dec_timer_users(chip);
1217 	switch (subs->stream) {
1218 	case SNDRV_PCM_STREAM_PLAYBACK:
1219 		chip->dacs_active--;
1220 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1221 				  KDATA_MIXER_TASK_NUMBER,
1222 				  chip->dacs_active);
1223 		break;
1224 	case SNDRV_PCM_STREAM_CAPTURE:
1225 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1226 				  KDATA_ADC1_REQUEST, 0);
1227 		break;
1228 	}
1229 	return 0;
1230 }
1231 
1232 static int
1233 snd_m3_pcm_trigger(snd_pcm_substream_t *subs, int cmd)
1234 {
1235 	m3_t *chip = snd_pcm_substream_chip(subs);
1236 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1237 	int err = -EINVAL;
1238 
1239 	snd_assert(s != NULL, return -ENXIO);
1240 
1241 	spin_lock(&chip->reg_lock);
1242 	switch (cmd) {
1243 	case SNDRV_PCM_TRIGGER_START:
1244 	case SNDRV_PCM_TRIGGER_RESUME:
1245 		if (s->running)
1246 			err = -EBUSY;
1247 		else {
1248 			s->running = 1;
1249 			err = snd_m3_pcm_start(chip, s, subs);
1250 		}
1251 		break;
1252 	case SNDRV_PCM_TRIGGER_STOP:
1253 	case SNDRV_PCM_TRIGGER_SUSPEND:
1254 		if (! s->running)
1255 			err = 0; /* should return error? */
1256 		else {
1257 			s->running = 0;
1258 			err = snd_m3_pcm_stop(chip, s, subs);
1259 		}
1260 		break;
1261 	}
1262 	spin_unlock(&chip->reg_lock);
1263 	return err;
1264 }
1265 
1266 /*
1267  * setup
1268  */
1269 static void
1270 snd_m3_pcm_setup1(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1271 {
1272 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1273 	snd_pcm_runtime_t *runtime = subs->runtime;
1274 
1275 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1276 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1277 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1278 	} else {
1279 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1280 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1281 	}
1282 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1283 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1284 
1285 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1286 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1287 	s->hwptr = 0;
1288 	s->count = 0;
1289 
1290 #define LO(x) ((x) & 0xffff)
1291 #define HI(x) LO((x) >> 16)
1292 
1293 	/* host dma buffer pointers */
1294 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1295 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1296 			  LO(s->buffer_addr));
1297 
1298 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1299 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1300 			  HI(s->buffer_addr));
1301 
1302 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1303 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1304 			  LO(s->buffer_addr + s->dma_size));
1305 
1306 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1307 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1308 			  HI(s->buffer_addr + s->dma_size));
1309 
1310 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1311 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1312 			  LO(s->buffer_addr));
1313 
1314 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1315 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1316 			  HI(s->buffer_addr));
1317 #undef LO
1318 #undef HI
1319 
1320 	/* dsp buffers */
1321 
1322 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1323 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1324 			  dsp_in_buffer);
1325 
1326 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1327 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1328 			  dsp_in_buffer + (dsp_in_size / 2));
1329 
1330 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1331 			  s->inst.data + CDATA_IN_BUF_HEAD,
1332 			  dsp_in_buffer);
1333 
1334 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1335 			  s->inst.data + CDATA_IN_BUF_TAIL,
1336 			  dsp_in_buffer);
1337 
1338 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1339 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1340 			  dsp_out_buffer);
1341 
1342 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1343 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1344 			  dsp_out_buffer + (dsp_out_size / 2));
1345 
1346 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1347 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1348 			  dsp_out_buffer);
1349 
1350 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1351 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1352 			  dsp_out_buffer);
1353 }
1354 
1355 static void snd_m3_pcm_setup2(m3_t *chip, m3_dma_t *s, snd_pcm_runtime_t *runtime)
1356 {
1357 	u32 freq;
1358 
1359 	/*
1360 	 * put us in the lists if we're not already there
1361 	 */
1362 	if (! s->in_lists) {
1363 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1364 					      s->inst.data >> DP_SHIFT_COUNT);
1365 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1366 					      s->inst.data >> DP_SHIFT_COUNT);
1367 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1368 					      s->inst.data >> DP_SHIFT_COUNT);
1369 		s->in_lists = 1;
1370 	}
1371 
1372 	/* write to 'mono' word */
1373 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1374 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1375 			  runtime->channels == 2 ? 0 : 1);
1376 	/* write to '8bit' word */
1377 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1378 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1379 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1380 
1381 	/* set up dac/adc rate */
1382 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1383 	if (freq)
1384 		freq--;
1385 
1386 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1387 			  s->inst.data + CDATA_FREQUENCY,
1388 			  freq);
1389 }
1390 
1391 
1392 static struct play_vals {
1393 	u16 addr, val;
1394 } pv[] = {
1395 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1396 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1397 	{SRC3_DIRECTION_OFFSET, 0} ,
1398 	/* +1, +2 are stereo/16 bit */
1399 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1400 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1401 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1402 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1403 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1404 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1405 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1406 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1407 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1408 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1409 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1410 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1411 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1412 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1413 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1414 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1415 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1416 };
1417 
1418 
1419 /* the mode passed should be already shifted and masked */
1420 static void
1421 snd_m3_playback_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1422 {
1423 	unsigned int i;
1424 
1425 	/*
1426 	 * some per client initializers
1427 	 */
1428 
1429 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1430 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1431 			  s->inst.data + 40 + 8);
1432 
1433 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1434 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1435 			  s->inst.code + MINISRC_COEF_LOC);
1436 
1437 	/* enable or disable low pass filter? */
1438 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1439 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1440 			  subs->runtime->rate > 45000 ? 0xff : 0);
1441 
1442 	/* tell it which way dma is going? */
1443 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1444 			  s->inst.data + CDATA_DMA_CONTROL,
1445 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1446 
1447 	/*
1448 	 * set an armload of static initializers
1449 	 */
1450 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1451 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1452 				  s->inst.data + pv[i].addr, pv[i].val);
1453 }
1454 
1455 /*
1456  *    Native record driver
1457  */
1458 static struct rec_vals {
1459 	u16 addr, val;
1460 } rv[] = {
1461 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1462 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1463 	{SRC3_DIRECTION_OFFSET, 1} ,
1464 	/* +1, +2 are stereo/16 bit */
1465 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1466 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1467 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1468 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1469 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1470 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1471 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1472 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1473 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1474 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1475 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1476 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1477 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1478 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1479 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1480 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1481 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1482 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1483 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1484 };
1485 
1486 static void
1487 snd_m3_capture_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1488 {
1489 	unsigned int i;
1490 
1491 	/*
1492 	 * some per client initializers
1493 	 */
1494 
1495 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1496 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1497 			  s->inst.data + 40 + 8);
1498 
1499 	/* tell it which way dma is going? */
1500 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1501 			  s->inst.data + CDATA_DMA_CONTROL,
1502 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1503 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1504 
1505 	/*
1506 	 * set an armload of static initializers
1507 	 */
1508 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1509 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1510 				  s->inst.data + rv[i].addr, rv[i].val);
1511 }
1512 
1513 static int snd_m3_pcm_hw_params(snd_pcm_substream_t * substream,
1514 				snd_pcm_hw_params_t * hw_params)
1515 {
1516 	m3_dma_t *s = (m3_dma_t*) substream->runtime->private_data;
1517 	int err;
1518 
1519 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1520 		return err;
1521 	/* set buffer address */
1522 	s->buffer_addr = substream->runtime->dma_addr;
1523 	if (s->buffer_addr & 0x3) {
1524 		snd_printk("oh my, not aligned\n");
1525 		s->buffer_addr = s->buffer_addr & ~0x3;
1526 	}
1527 	return 0;
1528 }
1529 
1530 static int snd_m3_pcm_hw_free(snd_pcm_substream_t * substream)
1531 {
1532 	m3_dma_t *s;
1533 
1534 	if (substream->runtime->private_data == NULL)
1535 		return 0;
1536 	s = (m3_dma_t*) substream->runtime->private_data;
1537 	snd_pcm_lib_free_pages(substream);
1538 	s->buffer_addr = 0;
1539 	return 0;
1540 }
1541 
1542 static int
1543 snd_m3_pcm_prepare(snd_pcm_substream_t *subs)
1544 {
1545 	m3_t *chip = snd_pcm_substream_chip(subs);
1546 	snd_pcm_runtime_t *runtime = subs->runtime;
1547 	m3_dma_t *s = (m3_dma_t*)runtime->private_data;
1548 
1549 	snd_assert(s != NULL, return -ENXIO);
1550 
1551 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1552 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1553 		return -EINVAL;
1554 	if (runtime->rate > 48000 ||
1555 	    runtime->rate < 8000)
1556 		return -EINVAL;
1557 
1558 	spin_lock_irq(&chip->reg_lock);
1559 
1560 	snd_m3_pcm_setup1(chip, s, subs);
1561 
1562 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1563 		snd_m3_playback_setup(chip, s, subs);
1564 	else
1565 		snd_m3_capture_setup(chip, s, subs);
1566 
1567 	snd_m3_pcm_setup2(chip, s, runtime);
1568 
1569 	spin_unlock_irq(&chip->reg_lock);
1570 
1571 	return 0;
1572 }
1573 
1574 /*
1575  * get current pointer
1576  */
1577 static unsigned int
1578 snd_m3_get_pointer(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1579 {
1580 	u16 hi = 0, lo = 0;
1581 	int retry = 10;
1582 	u32 addr;
1583 
1584 	/*
1585 	 * try and get a valid answer
1586 	 */
1587 	while (retry--) {
1588 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1589 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1590 
1591 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1592 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1593 
1594 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1595 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1596 			break;
1597 	}
1598 	addr = lo | ((u32)hi<<16);
1599 	return (unsigned int)(addr - s->buffer_addr);
1600 }
1601 
1602 static snd_pcm_uframes_t
1603 snd_m3_pcm_pointer(snd_pcm_substream_t * subs)
1604 {
1605 	m3_t *chip = snd_pcm_substream_chip(subs);
1606 	unsigned int ptr;
1607 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1608 	snd_assert(s != NULL, return 0);
1609 
1610 	spin_lock(&chip->reg_lock);
1611 	ptr = snd_m3_get_pointer(chip, s, subs);
1612 	spin_unlock(&chip->reg_lock);
1613 	return bytes_to_frames(subs->runtime, ptr);
1614 }
1615 
1616 
1617 /* update pointer */
1618 /* spinlock held! */
1619 static void snd_m3_update_ptr(m3_t *chip, m3_dma_t *s)
1620 {
1621 	snd_pcm_substream_t *subs = s->substream;
1622 	unsigned int hwptr;
1623 	int diff;
1624 
1625 	if (! s->running)
1626 		return;
1627 
1628 	hwptr = snd_m3_get_pointer(chip, s, subs) % s->dma_size;
1629 	diff = (s->dma_size + hwptr - s->hwptr) % s->dma_size;
1630 	s->hwptr = hwptr;
1631 	s->count += diff;
1632 	if (s->count >= (signed)s->period_size) {
1633 		s->count %= s->period_size;
1634 		spin_unlock(&chip->reg_lock);
1635 		snd_pcm_period_elapsed(subs);
1636 		spin_lock(&chip->reg_lock);
1637 	}
1638 }
1639 
1640 static void snd_m3_update_hw_volume(unsigned long private_data)
1641 {
1642 	m3_t *chip = (m3_t *) private_data;
1643 	int x, val;
1644 	unsigned long flags;
1645 
1646 	/* Figure out which volume control button was pushed,
1647 	   based on differences from the default register
1648 	   values. */
1649 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1650 
1651 	/* Reset the volume control registers. */
1652 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1653 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1654 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1655 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1656 
1657 	if (!chip->master_switch || !chip->master_volume)
1658 		return;
1659 
1660 	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
1661 	spin_lock_irqsave(&chip->ac97_lock, flags);
1662 
1663 	val = chip->ac97->regs[AC97_MASTER_VOL];
1664 	switch (x) {
1665 	case 0x88:
1666 		/* mute */
1667 		val ^= 0x8000;
1668 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1669 		outw(val, chip->iobase + CODEC_DATA);
1670 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1671 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1672 			       &chip->master_switch->id);
1673 		break;
1674 	case 0xaa:
1675 		/* volume up */
1676 		if ((val & 0x7f) > 0)
1677 			val--;
1678 		if ((val & 0x7f00) > 0)
1679 			val -= 0x0100;
1680 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1681 		outw(val, chip->iobase + CODEC_DATA);
1682 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1683 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1684 			       &chip->master_volume->id);
1685 		break;
1686 	case 0x66:
1687 		/* volume down */
1688 		if ((val & 0x7f) < 0x1f)
1689 			val++;
1690 		if ((val & 0x7f00) < 0x1f00)
1691 			val += 0x0100;
1692 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1693 		outw(val, chip->iobase + CODEC_DATA);
1694 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1695 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1696 			       &chip->master_volume->id);
1697 		break;
1698 	}
1699 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1700 }
1701 
1702 static irqreturn_t
1703 snd_m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1704 {
1705 	m3_t *chip = dev_id;
1706 	u8 status;
1707 	int i;
1708 
1709 	status = inb(chip->iobase + HOST_INT_STATUS);
1710 
1711 	if (status == 0xff)
1712 		return IRQ_NONE;
1713 
1714 	if (status & HV_INT_PENDING)
1715 		tasklet_hi_schedule(&chip->hwvol_tq);
1716 
1717 	/*
1718 	 * ack an assp int if its running
1719 	 * and has an int pending
1720 	 */
1721 	if (status & ASSP_INT_PENDING) {
1722 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1723 		if (!(ctl & STOP_ASSP_CLOCK)) {
1724 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1725 			if (ctl & DSP2HOST_REQ_TIMER) {
1726 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1727 				/* update adc/dac info if it was a timer int */
1728 				spin_lock(&chip->reg_lock);
1729 				for (i = 0; i < chip->num_substreams; i++) {
1730 					m3_dma_t *s = &chip->substreams[i];
1731 					if (s->running)
1732 						snd_m3_update_ptr(chip, s);
1733 				}
1734 				spin_unlock(&chip->reg_lock);
1735 			}
1736 		}
1737 	}
1738 
1739 #if 0 /* TODO: not supported yet */
1740 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1741 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1742 #endif
1743 
1744 	/* ack ints */
1745 	outb(status, chip->iobase + HOST_INT_STATUS);
1746 
1747 	return IRQ_HANDLED;
1748 }
1749 
1750 
1751 /*
1752  */
1753 
1754 static snd_pcm_hardware_t snd_m3_playback =
1755 {
1756 	.info =			(SNDRV_PCM_INFO_MMAP |
1757 				 SNDRV_PCM_INFO_INTERLEAVED |
1758 				 SNDRV_PCM_INFO_MMAP_VALID |
1759 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1760 				 /*SNDRV_PCM_INFO_PAUSE |*/
1761 				 SNDRV_PCM_INFO_RESUME),
1762 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1763 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1764 	.rate_min =		8000,
1765 	.rate_max =		48000,
1766 	.channels_min =		1,
1767 	.channels_max =		2,
1768 	.buffer_bytes_max =	(512*1024),
1769 	.period_bytes_min =	64,
1770 	.period_bytes_max =	(512*1024),
1771 	.periods_min =		1,
1772 	.periods_max =		1024,
1773 };
1774 
1775 static snd_pcm_hardware_t snd_m3_capture =
1776 {
1777 	.info =			(SNDRV_PCM_INFO_MMAP |
1778 				 SNDRV_PCM_INFO_INTERLEAVED |
1779 				 SNDRV_PCM_INFO_MMAP_VALID |
1780 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1781 				 /*SNDRV_PCM_INFO_PAUSE |*/
1782 				 SNDRV_PCM_INFO_RESUME),
1783 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1784 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1785 	.rate_min =		8000,
1786 	.rate_max =		48000,
1787 	.channels_min =		1,
1788 	.channels_max =		2,
1789 	.buffer_bytes_max =	(512*1024),
1790 	.period_bytes_min =	64,
1791 	.period_bytes_max =	(512*1024),
1792 	.periods_min =		1,
1793 	.periods_max =		1024,
1794 };
1795 
1796 
1797 /*
1798  */
1799 
1800 static int
1801 snd_m3_substream_open(m3_t *chip, snd_pcm_substream_t *subs)
1802 {
1803 	int i;
1804 	m3_dma_t *s;
1805 
1806 	spin_lock_irq(&chip->reg_lock);
1807 	for (i = 0; i < chip->num_substreams; i++) {
1808 		s = &chip->substreams[i];
1809 		if (! s->opened)
1810 			goto __found;
1811 	}
1812 	spin_unlock_irq(&chip->reg_lock);
1813 	return -ENOMEM;
1814 __found:
1815 	s->opened = 1;
1816 	s->running = 0;
1817 	spin_unlock_irq(&chip->reg_lock);
1818 
1819 	subs->runtime->private_data = s;
1820 	s->substream = subs;
1821 
1822 	/* set list owners */
1823 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1824 		s->index_list[0] = &chip->mixer_list;
1825 	} else
1826 		s->index_list[0] = &chip->adc1_list;
1827 	s->index_list[1] = &chip->msrc_list;
1828 	s->index_list[2] = &chip->dma_list;
1829 
1830 	return 0;
1831 }
1832 
1833 static void
1834 snd_m3_substream_close(m3_t *chip, snd_pcm_substream_t *subs)
1835 {
1836 	m3_dma_t *s = (m3_dma_t*) subs->runtime->private_data;
1837 
1838 	if (s == NULL)
1839 		return; /* not opened properly */
1840 
1841 	spin_lock_irq(&chip->reg_lock);
1842 	if (s->substream && s->running)
1843 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1844 	if (s->in_lists) {
1845 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1846 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1847 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1848 		s->in_lists = 0;
1849 	}
1850 	s->running = 0;
1851 	s->opened = 0;
1852 	spin_unlock_irq(&chip->reg_lock);
1853 }
1854 
1855 static int
1856 snd_m3_playback_open(snd_pcm_substream_t *subs)
1857 {
1858 	m3_t *chip = snd_pcm_substream_chip(subs);
1859 	snd_pcm_runtime_t *runtime = subs->runtime;
1860 	int err;
1861 
1862 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1863 		return err;
1864 
1865 	runtime->hw = snd_m3_playback;
1866 	snd_pcm_set_sync(subs);
1867 
1868 	return 0;
1869 }
1870 
1871 static int
1872 snd_m3_playback_close(snd_pcm_substream_t *subs)
1873 {
1874 	m3_t *chip = snd_pcm_substream_chip(subs);
1875 
1876 	snd_m3_substream_close(chip, subs);
1877 	return 0;
1878 }
1879 
1880 static int
1881 snd_m3_capture_open(snd_pcm_substream_t *subs)
1882 {
1883 	m3_t *chip = snd_pcm_substream_chip(subs);
1884 	snd_pcm_runtime_t *runtime = subs->runtime;
1885 	int err;
1886 
1887 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1888 		return err;
1889 
1890 	runtime->hw = snd_m3_capture;
1891 	snd_pcm_set_sync(subs);
1892 
1893 	return 0;
1894 }
1895 
1896 static int
1897 snd_m3_capture_close(snd_pcm_substream_t *subs)
1898 {
1899 	m3_t *chip = snd_pcm_substream_chip(subs);
1900 
1901 	snd_m3_substream_close(chip, subs);
1902 	return 0;
1903 }
1904 
1905 /*
1906  * create pcm instance
1907  */
1908 
1909 static snd_pcm_ops_t snd_m3_playback_ops = {
1910 	.open =		snd_m3_playback_open,
1911 	.close =	snd_m3_playback_close,
1912 	.ioctl =	snd_pcm_lib_ioctl,
1913 	.hw_params =	snd_m3_pcm_hw_params,
1914 	.hw_free =	snd_m3_pcm_hw_free,
1915 	.prepare =	snd_m3_pcm_prepare,
1916 	.trigger =	snd_m3_pcm_trigger,
1917 	.pointer =	snd_m3_pcm_pointer,
1918 };
1919 
1920 static snd_pcm_ops_t snd_m3_capture_ops = {
1921 	.open =		snd_m3_capture_open,
1922 	.close =	snd_m3_capture_close,
1923 	.ioctl =	snd_pcm_lib_ioctl,
1924 	.hw_params =	snd_m3_pcm_hw_params,
1925 	.hw_free =	snd_m3_pcm_hw_free,
1926 	.prepare =	snd_m3_pcm_prepare,
1927 	.trigger =	snd_m3_pcm_trigger,
1928 	.pointer =	snd_m3_pcm_pointer,
1929 };
1930 
1931 static int __devinit
1932 snd_m3_pcm(m3_t * chip, int device)
1933 {
1934 	snd_pcm_t *pcm;
1935 	int err;
1936 
1937 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1938 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1939 	if (err < 0)
1940 		return err;
1941 
1942 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1943 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1944 
1945 	pcm->private_data = chip;
1946 	pcm->info_flags = 0;
1947 	strcpy(pcm->name, chip->card->driver);
1948 	chip->pcm = pcm;
1949 
1950 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1951 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1952 
1953 	return 0;
1954 }
1955 
1956 
1957 /*
1958  * ac97 interface
1959  */
1960 
1961 /*
1962  * Wait for the ac97 serial bus to be free.
1963  * return nonzero if the bus is still busy.
1964  */
1965 static int snd_m3_ac97_wait(m3_t *chip)
1966 {
1967 	int i = 10000;
1968 
1969 	do {
1970 		if (! (snd_m3_inb(chip, 0x30) & 1))
1971 			return 0;
1972 	} while (i-- > 0);
1973 
1974 	snd_printk("ac97 serial bus busy\n");
1975 	return 1;
1976 }
1977 
1978 static unsigned short
1979 snd_m3_ac97_read(ac97_t *ac97, unsigned short reg)
1980 {
1981 	m3_t *chip = ac97->private_data;
1982 	unsigned long flags;
1983 	unsigned short data;
1984 
1985 	if (snd_m3_ac97_wait(chip))
1986 		return 0xffff;
1987 	spin_lock_irqsave(&chip->ac97_lock, flags);
1988 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1989 	if (snd_m3_ac97_wait(chip))
1990 		return 0xffff;
1991 	data = snd_m3_inw(chip, CODEC_DATA);
1992 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1993 	return data;
1994 }
1995 
1996 static void
1997 snd_m3_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val)
1998 {
1999 	m3_t *chip = ac97->private_data;
2000 	unsigned long flags;
2001 
2002 	if (snd_m3_ac97_wait(chip))
2003 		return;
2004 	spin_lock_irqsave(&chip->ac97_lock, flags);
2005 	snd_m3_outw(chip, val, CODEC_DATA);
2006 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
2007 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
2008 }
2009 
2010 
2011 static void snd_m3_remote_codec_config(int io, int isremote)
2012 {
2013 	isremote = isremote ? 1 : 0;
2014 
2015 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
2016 	     io + RING_BUS_CTRL_B);
2017 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
2018 	     io + SDO_OUT_DEST_CTRL);
2019 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
2020 	     io + SDO_IN_DEST_CTRL);
2021 }
2022 
2023 /*
2024  * hack, returns non zero on err
2025  */
2026 static int snd_m3_try_read_vendor(m3_t *chip)
2027 {
2028 	u16 ret;
2029 
2030 	if (snd_m3_ac97_wait(chip))
2031 		return 1;
2032 
2033 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
2034 
2035 	if (snd_m3_ac97_wait(chip))
2036 		return 1;
2037 
2038 	ret = snd_m3_inw(chip, 0x32);
2039 
2040 	return (ret == 0) || (ret == 0xffff);
2041 }
2042 
2043 static void snd_m3_ac97_reset(m3_t *chip)
2044 {
2045 	u16 dir;
2046 	int delay1 = 0, delay2 = 0, i;
2047 	int io = chip->iobase;
2048 
2049 	if (chip->allegro_flag) {
2050 		/*
2051 		 * the onboard codec on the allegro seems
2052 		 * to want to wait a very long time before
2053 		 * coming back to life
2054 		 */
2055 		delay1 = 50;
2056 		delay2 = 800;
2057 	} else {
2058 		/* maestro3 */
2059 		delay1 = 20;
2060 		delay2 = 500;
2061 	}
2062 
2063 	for (i = 0; i < 5; i++) {
2064 		dir = inw(io + GPIO_DIRECTION);
2065 		if (! chip->quirk || ! chip->quirk->irda_workaround)
2066 			dir |= 0x10; /* assuming pci bus master? */
2067 
2068 		snd_m3_remote_codec_config(io, 0);
2069 
2070 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2071 		udelay(20);
2072 
2073 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2074 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2075 		outw(0, io + GPIO_DATA);
2076 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2077 
2078 		set_current_state(TASK_UNINTERRUPTIBLE);
2079 		schedule_timeout((delay1 * HZ) / 1000);
2080 
2081 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2082 		udelay(5);
2083 		/* ok, bring back the ac-link */
2084 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2085 		outw(~0, io + GPIO_MASK);
2086 
2087 		set_current_state(TASK_UNINTERRUPTIBLE);
2088 		schedule_timeout((delay2 * HZ) / 1000);
2089 
2090 		if (! snd_m3_try_read_vendor(chip))
2091 			break;
2092 
2093 		delay1 += 10;
2094 		delay2 += 100;
2095 
2096 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2097 			   delay1, delay2);
2098 	}
2099 
2100 #if 0
2101 	/* more gung-ho reset that doesn't
2102 	 * seem to work anywhere :)
2103 	 */
2104 	tmp = inw(io + RING_BUS_CTRL_A);
2105 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2106 	msleep(20);
2107 	outw(tmp, io + RING_BUS_CTRL_A);
2108 	msleep(50);
2109 #endif
2110 }
2111 
2112 static int __devinit snd_m3_mixer(m3_t *chip)
2113 {
2114 	ac97_bus_t *pbus;
2115 	ac97_template_t ac97;
2116 	snd_ctl_elem_id_t id;
2117 	int err;
2118 	static ac97_bus_ops_t ops = {
2119 		.write = snd_m3_ac97_write,
2120 		.read = snd_m3_ac97_read,
2121 	};
2122 
2123 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2124 		return err;
2125 
2126 	memset(&ac97, 0, sizeof(ac97));
2127 	ac97.private_data = chip;
2128 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2129 		return err;
2130 
2131 	/* seems ac97 PCM needs initialization.. hack hack.. */
2132 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2133 	set_current_state(TASK_UNINTERRUPTIBLE);
2134 	schedule_timeout(HZ / 10);
2135 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2136 
2137 	memset(&id, 0, sizeof(id));
2138 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2139 	strcpy(id.name, "Master Playback Switch");
2140 	chip->master_switch = snd_ctl_find_id(chip->card, &id);
2141 	memset(&id, 0, sizeof(id));
2142 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2143 	strcpy(id.name, "Master Playback Volume");
2144 	chip->master_volume = snd_ctl_find_id(chip->card, &id);
2145 
2146 	return 0;
2147 }
2148 
2149 
2150 /*
2151  * DSP Code images
2152  */
2153 
2154 static u16 assp_kernel_image[] __devinitdata = {
2155     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2156     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2157     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2158     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2159     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2160     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2161     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2162     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2163     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2164     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2165     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2166     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2167     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2168     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2169     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2170     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2171     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2172     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2173     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2174     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2175     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2176     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2177     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2178     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2179     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2180     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2181     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2182     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2183     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2184     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2185     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2186     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2187     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2188     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2189     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2190     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2191     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2192     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2193     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2194     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2195     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2196     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2197     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2198     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2199     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2200     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2201     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2202     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2203     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2204     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2205     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2206     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2207     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2208     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2209     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2210     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2211     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2212     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2213     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2214     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2215     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2216     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2217     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2218     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2219     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2220     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2221     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2222     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2223     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2224     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2225     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2226     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2227     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2228     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2229     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2230     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2231     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2232     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2233     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2234     0xBE3A,
2235 };
2236 
2237 /*
2238  * Mini sample rate converter code image
2239  * that is to be loaded at 0x400 on the DSP.
2240  */
2241 static u16 assp_minisrc_image[] __devinitdata = {
2242 
2243     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2244     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2245     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2246     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2247     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2248     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2249     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2250     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2251     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2252     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2253     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2254     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2255     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2256     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2257     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2258     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2259     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2260     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2261     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2262     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2263     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2264     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2265     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2266     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2267     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2268     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2269     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2270     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2271     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2272     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2273     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2274     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2275     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2276 };
2277 
2278 
2279 /*
2280  * initialize ASSP
2281  */
2282 
2283 #define MINISRC_LPF_LEN 10
2284 static u16 minisrc_lpf[MINISRC_LPF_LEN] __devinitdata = {
2285 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2286 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2287 };
2288 
2289 static void __devinit snd_m3_assp_init(m3_t *chip)
2290 {
2291 	unsigned int i;
2292 
2293 	/* zero kernel data */
2294 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2295 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2296 				  KDATA_BASE_ADDR + i, 0);
2297 
2298 	/* zero mixer data? */
2299 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2300 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2301 				  KDATA_BASE_ADDR2 + i, 0);
2302 
2303 	/* init dma pointer */
2304 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2305 			  KDATA_CURRENT_DMA,
2306 			  KDATA_DMA_XFER0);
2307 
2308 	/* write kernel into code memory.. */
2309 	for (i = 0 ; i < ARRAY_SIZE(assp_kernel_image); i++) {
2310 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2311 				  REV_B_CODE_MEMORY_BEGIN + i,
2312 				  assp_kernel_image[i]);
2313 	}
2314 
2315 	/*
2316 	 * We only have this one client and we know that 0x400
2317 	 * is free in our kernel's mem map, so lets just
2318 	 * drop it there.  It seems that the minisrc doesn't
2319 	 * need vectors, so we won't bother with them..
2320 	 */
2321 	for (i = 0; i < ARRAY_SIZE(assp_minisrc_image); i++) {
2322 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2323 				  0x400 + i,
2324 				  assp_minisrc_image[i]);
2325 	}
2326 
2327 	/*
2328 	 * write the coefficients for the low pass filter?
2329 	 */
2330 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2331 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2332 				  0x400 + MINISRC_COEF_LOC + i,
2333 				  minisrc_lpf[i]);
2334 	}
2335 
2336 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2337 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2338 			  0x8000);
2339 
2340 	/*
2341 	 * the minisrc is the only thing on
2342 	 * our task list..
2343 	 */
2344 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2345 			  KDATA_TASK0,
2346 			  0x400);
2347 
2348 	/*
2349 	 * init the mixer number..
2350 	 */
2351 
2352 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2353 			  KDATA_MIXER_TASK_NUMBER,0);
2354 
2355 	/*
2356 	 * EXTREME KERNEL MASTER VOLUME
2357 	 */
2358 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2359 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2360 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2361 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2362 
2363 	chip->mixer_list.curlen = 0;
2364 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2365 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2366 	chip->adc1_list.curlen = 0;
2367 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2368 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2369 	chip->dma_list.curlen = 0;
2370 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2371 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2372 	chip->msrc_list.curlen = 0;
2373 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2374 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2375 }
2376 
2377 
2378 static int __devinit snd_m3_assp_client_init(m3_t *chip, m3_dma_t *s, int index)
2379 {
2380 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2381 			       MINISRC_IN_BUFFER_SIZE / 2 +
2382 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2383 	int address, i;
2384 
2385 	/*
2386 	 * the revb memory map has 0x1100 through 0x1c00
2387 	 * free.
2388 	 */
2389 
2390 	/*
2391 	 * align instance address to 256 bytes so that it's
2392 	 * shifted list address is aligned.
2393 	 * list address = (mem address >> 1) >> 7;
2394 	 */
2395 	data_bytes = (data_bytes + 255) & ~255;
2396 	address = 0x1100 + ((data_bytes/2) * index);
2397 
2398 	if ((address + (data_bytes/2)) >= 0x1c00) {
2399 		snd_printk("no memory for %d bytes at ind %d (addr 0x%x)\n",
2400 			   data_bytes, index, address);
2401 		return -ENOMEM;
2402 	}
2403 
2404 	s->number = index;
2405 	s->inst.code = 0x400;
2406 	s->inst.data = address;
2407 
2408 	for (i = data_bytes / 2; i > 0; address++, i--) {
2409 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2410 				  address, 0);
2411 	}
2412 
2413 	return 0;
2414 }
2415 
2416 
2417 /*
2418  * this works for the reference board, have to find
2419  * out about others
2420  *
2421  * this needs more magic for 4 speaker, but..
2422  */
2423 static void
2424 snd_m3_amp_enable(m3_t *chip, int enable)
2425 {
2426 	int io = chip->iobase;
2427 	u16 gpo, polarity;
2428 
2429 	if (! chip->external_amp)
2430 		return;
2431 
2432 	polarity = enable ? 0 : 1;
2433 	polarity = polarity << chip->amp_gpio;
2434 	gpo = 1 << chip->amp_gpio;
2435 
2436 	outw(~gpo, io + GPIO_MASK);
2437 
2438 	outw(inw(io + GPIO_DIRECTION) | gpo,
2439 	     io + GPIO_DIRECTION);
2440 
2441 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2442 	     io + GPIO_DATA);
2443 
2444 	outw(0xffff, io + GPIO_MASK);
2445 }
2446 
2447 static int
2448 snd_m3_chip_init(m3_t *chip)
2449 {
2450 	struct pci_dev *pcidev = chip->pci;
2451 	unsigned long io = chip->iobase;
2452 	u32 n;
2453 	u16 w;
2454 	u8 t; /* makes as much sense as 'n', no? */
2455 
2456 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2457 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2458 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2459 	       DISABLE_LEGACY);
2460 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2461 
2462 	if (chip->hv_quirk && chip->hv_quirk->is_omnibook) {
2463 		/*
2464 		 * Volume buttons on some HP OmniBook laptops don't work
2465 		 * correctly. This makes them work for the most part.
2466 		 *
2467 		 * Volume up and down buttons on the laptop side work.
2468 		 * Fn+cursor_up (volme up) works.
2469 		 * Fn+cursor_down (volume down) doesn't work.
2470 		 * Fn+F7 (mute) works acts as volume up.
2471 		 */
2472 		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
2473 		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
2474 		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
2475 		outw(0xffff, io + GPIO_MASK);
2476 	}
2477 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2478 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2479 	if (chip->hv_quirk)
2480 		n |= chip->hv_quirk->config;
2481 	/* For some reason we must always use reduced debounce. */
2482 	n |= REDUCED_DEBOUNCE;
2483 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2484 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2485 
2486 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2487 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2488 	n &= ~INT_CLK_SELECT;
2489 	if (!chip->allegro_flag) {
2490 		n &= ~INT_CLK_MULT_ENABLE;
2491 		n |= INT_CLK_SRC_NOT_PCI;
2492 	}
2493 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2494 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2495 
2496 	if (chip->allegro_flag) {
2497 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2498 		n |= IN_CLK_12MHZ_SELECT;
2499 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2500 	}
2501 
2502 	t = inb(chip->iobase + ASSP_CONTROL_A);
2503 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2504 	t |= ASSP_CLK_49MHZ_SELECT;
2505 	t |= ASSP_0_WS_ENABLE;
2506 	outb(t, chip->iobase + ASSP_CONTROL_A);
2507 
2508 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2509 
2510 	outb(0x00, io + HARDWARE_VOL_CTRL);
2511 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2512 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2513 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2514 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2515 
2516 	return 0;
2517 }
2518 
2519 static void
2520 snd_m3_enable_ints(m3_t *chip)
2521 {
2522 	unsigned long io = chip->iobase;
2523 	unsigned short val;
2524 
2525 	/* TODO: MPU401 not supported yet */
2526 	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2527 	if (chip->hv_quirk && (chip->hv_quirk->config & HV_CTRL_ENABLE))
2528 		val |= HV_INT_ENABLE;
2529 	outw(val, io + HOST_INT_CTRL);
2530 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2531 	     io + ASSP_CONTROL_C);
2532 }
2533 
2534 
2535 /*
2536  */
2537 
2538 static int snd_m3_free(m3_t *chip)
2539 {
2540 	m3_dma_t *s;
2541 	int i;
2542 
2543 	if (chip->substreams) {
2544 		spin_lock_irq(&chip->reg_lock);
2545 		for (i = 0; i < chip->num_substreams; i++) {
2546 			s = &chip->substreams[i];
2547 			/* check surviving pcms; this should not happen though.. */
2548 			if (s->substream && s->running)
2549 				snd_m3_pcm_stop(chip, s, s->substream);
2550 		}
2551 		spin_unlock_irq(&chip->reg_lock);
2552 		kfree(chip->substreams);
2553 	}
2554 	if (chip->iobase) {
2555 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2556 	}
2557 
2558 #ifdef CONFIG_PM
2559 	vfree(chip->suspend_mem);
2560 #endif
2561 
2562 	if (chip->irq >= 0) {
2563 		synchronize_irq(chip->irq);
2564 		free_irq(chip->irq, (void *)chip);
2565 	}
2566 
2567 	if (chip->iobase)
2568 		pci_release_regions(chip->pci);
2569 
2570 	pci_disable_device(chip->pci);
2571 	kfree(chip);
2572 	return 0;
2573 }
2574 
2575 
2576 /*
2577  * APM support
2578  */
2579 #ifdef CONFIG_PM
2580 static int m3_suspend(snd_card_t *card, pm_message_t state)
2581 {
2582 	m3_t *chip = card->pm_private_data;
2583 	int i, index;
2584 
2585 	if (chip->suspend_mem == NULL)
2586 		return 0;
2587 
2588 	snd_pcm_suspend_all(chip->pcm);
2589 	snd_ac97_suspend(chip->ac97);
2590 
2591 	msleep(10); /* give the assp a chance to idle.. */
2592 
2593 	snd_m3_assp_halt(chip);
2594 
2595 	/* save dsp image */
2596 	index = 0;
2597 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2598 		chip->suspend_mem[index++] =
2599 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2600 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2601 		chip->suspend_mem[index++] =
2602 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2603 
2604 	/* power down apci registers */
2605 	snd_m3_outw(chip, 0xffff, 0x54);
2606 	snd_m3_outw(chip, 0xffff, 0x56);
2607 
2608 	pci_disable_device(chip->pci);
2609 	return 0;
2610 }
2611 
2612 static int m3_resume(snd_card_t *card)
2613 {
2614 	m3_t *chip = card->pm_private_data;
2615 	int i, index;
2616 
2617 	if (chip->suspend_mem == NULL)
2618 		return 0;
2619 
2620 	pci_enable_device(chip->pci);
2621 	pci_set_master(chip->pci);
2622 
2623 	/* first lets just bring everything back. .*/
2624 	snd_m3_outw(chip, 0, 0x54);
2625 	snd_m3_outw(chip, 0, 0x56);
2626 
2627 	snd_m3_chip_init(chip);
2628 	snd_m3_assp_halt(chip);
2629 	snd_m3_ac97_reset(chip);
2630 
2631 	/* restore dsp image */
2632 	index = 0;
2633 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2634 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2635 				  chip->suspend_mem[index++]);
2636 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2637 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2638 				  chip->suspend_mem[index++]);
2639 
2640 	/* tell the dma engine to restart itself */
2641 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2642 			  KDATA_DMA_ACTIVE, 0);
2643 
2644         /* restore ac97 registers */
2645 	snd_ac97_resume(chip->ac97);
2646 
2647 	snd_m3_assp_continue(chip);
2648 	snd_m3_enable_ints(chip);
2649 	snd_m3_amp_enable(chip, 1);
2650 
2651 	return 0;
2652 }
2653 #endif /* CONFIG_PM */
2654 
2655 
2656 /*
2657  */
2658 
2659 static int snd_m3_dev_free(snd_device_t *device)
2660 {
2661 	m3_t *chip = device->device_data;
2662 	return snd_m3_free(chip);
2663 }
2664 
2665 static int __devinit
2666 snd_m3_create(snd_card_t *card, struct pci_dev *pci,
2667 	      int enable_amp,
2668 	      int amp_gpio,
2669 	      m3_t **chip_ret)
2670 {
2671 	m3_t *chip;
2672 	int i, err;
2673 	struct m3_quirk *quirk;
2674 	struct m3_hv_quirk *hv_quirk;
2675 	static snd_device_ops_t ops = {
2676 		.dev_free =	snd_m3_dev_free,
2677 	};
2678 
2679 	*chip_ret = NULL;
2680 
2681 	if (pci_enable_device(pci))
2682 		return -EIO;
2683 
2684 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2685 	if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
2686 	    pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
2687 		snd_printk("architecture does not support 28bit PCI busmaster DMA\n");
2688 		pci_disable_device(pci);
2689 		return -ENXIO;
2690 	}
2691 
2692 	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
2693 	if (chip == NULL) {
2694 		pci_disable_device(pci);
2695 		return -ENOMEM;
2696 	}
2697 
2698 	spin_lock_init(&chip->reg_lock);
2699 	spin_lock_init(&chip->ac97_lock);
2700 
2701 	switch (pci->device) {
2702 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2703 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2704 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2705 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2706 		chip->allegro_flag = 1;
2707 		break;
2708 	}
2709 
2710 	chip->card = card;
2711 	chip->pci = pci;
2712 	chip->irq = -1;
2713 
2714 	for (quirk = m3_quirk_list; quirk->vendor; quirk++) {
2715 		if (pci->subsystem_vendor == quirk->vendor &&
2716 		    pci->subsystem_device == quirk->device) {
2717 			printk(KERN_INFO "maestro3: enabled hack for '%s'\n", quirk->name);
2718 			chip->quirk = quirk;
2719 			break;
2720 		}
2721 	}
2722 
2723 	for (hv_quirk = m3_hv_quirk_list; hv_quirk->vendor; hv_quirk++) {
2724 		if (pci->vendor == hv_quirk->vendor &&
2725 		    pci->device == hv_quirk->device &&
2726 		    pci->subsystem_vendor == hv_quirk->subsystem_vendor &&
2727 		    pci->subsystem_device == hv_quirk->subsystem_device) {
2728 			chip->hv_quirk = hv_quirk;
2729 			break;
2730 		}
2731 	}
2732 
2733 	chip->external_amp = enable_amp;
2734 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2735 		chip->amp_gpio = amp_gpio;
2736 	else if (chip->quirk && chip->quirk->amp_gpio >= 0)
2737 		chip->amp_gpio = chip->quirk->amp_gpio;
2738 	else if (chip->allegro_flag)
2739 		chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2740 	else /* presumably this is for all 'maestro3's.. */
2741 		chip->amp_gpio = GPO_EXT_AMP_M3;
2742 
2743 	chip->num_substreams = NR_DSPS;
2744 	chip->substreams = kmalloc(sizeof(m3_dma_t) * chip->num_substreams, GFP_KERNEL);
2745 	if (chip->substreams == NULL) {
2746 		kfree(chip);
2747 		pci_disable_device(pci);
2748 		return -ENOMEM;
2749 	}
2750 	memset(chip->substreams, 0, sizeof(m3_dma_t) * chip->num_substreams);
2751 
2752 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2753 		snd_m3_free(chip);
2754 		return err;
2755 	}
2756 	chip->iobase = pci_resource_start(pci, 0);
2757 
2758 	/* just to be sure */
2759 	pci_set_master(pci);
2760 
2761 	snd_m3_chip_init(chip);
2762 	snd_m3_assp_halt(chip);
2763 
2764 	snd_m3_ac97_reset(chip);
2765 
2766 	snd_m3_assp_init(chip);
2767 	snd_m3_amp_enable(chip, 1);
2768 
2769 	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);
2770 
2771 	if (request_irq(pci->irq, snd_m3_interrupt, SA_INTERRUPT|SA_SHIRQ,
2772 			card->driver, (void *)chip)) {
2773 		snd_printk("unable to grab IRQ %d\n", pci->irq);
2774 		snd_m3_free(chip);
2775 		return -ENOMEM;
2776 	}
2777 	chip->irq = pci->irq;
2778 
2779 #ifdef CONFIG_PM
2780 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2781 	if (chip->suspend_mem == NULL)
2782 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2783 	else
2784 		snd_card_set_pm_callback(card, m3_suspend, m3_resume, chip);
2785 #endif
2786 
2787 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2788 		snd_m3_free(chip);
2789 		return err;
2790 	}
2791 
2792 	if ((err = snd_m3_mixer(chip)) < 0)
2793 		return err;
2794 
2795 	for (i = 0; i < chip->num_substreams; i++) {
2796 		m3_dma_t *s = &chip->substreams[i];
2797 		s->chip = chip;
2798 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2799 			return err;
2800 	}
2801 
2802 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2803 		return err;
2804 
2805 	snd_m3_enable_ints(chip);
2806 	snd_m3_assp_continue(chip);
2807 
2808 	snd_card_set_dev(card, &pci->dev);
2809 
2810 	*chip_ret = chip;
2811 
2812 	return 0;
2813 }
2814 
2815 /*
2816  */
2817 static int __devinit
2818 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2819 {
2820 	static int dev;
2821 	snd_card_t *card;
2822 	m3_t *chip;
2823 	int err;
2824 
2825 	/* don't pick up modems */
2826 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2827 		return -ENODEV;
2828 
2829 	if (dev >= SNDRV_CARDS)
2830 		return -ENODEV;
2831 	if (!enable[dev]) {
2832 		dev++;
2833 		return -ENOENT;
2834 	}
2835 
2836 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2837 	if (card == NULL)
2838 		return -ENOMEM;
2839 
2840 	switch (pci->device) {
2841 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2842 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2843 		strcpy(card->driver, "Allegro");
2844 		break;
2845 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2846 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2847 		strcpy(card->driver, "Canyon3D-2");
2848 		break;
2849 	default:
2850 		strcpy(card->driver, "Maestro3");
2851 		break;
2852 	}
2853 
2854 	if ((err = snd_m3_create(card, pci,
2855 				 external_amp[dev],
2856 				 amp_gpio[dev],
2857 				 &chip)) < 0) {
2858 		snd_card_free(card);
2859 		return err;
2860 	}
2861 
2862 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2863 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2864 		card->shortname, chip->iobase, chip->irq);
2865 
2866 	if ((err = snd_card_register(card)) < 0) {
2867 		snd_card_free(card);
2868 		return err;
2869 	}
2870 
2871 #if 0 /* TODO: not supported yet */
2872 	/* TODO enable midi irq and i/o */
2873 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2874 				  chip->iobase + MPU401_DATA_PORT, 1,
2875 				  chip->irq, 0, &chip->rmidi);
2876 	if (err < 0)
2877 		printk(KERN_WARNING "maestro3: no midi support.\n");
2878 #endif
2879 
2880 	pci_set_drvdata(pci, card);
2881 	dev++;
2882 	return 0;
2883 }
2884 
2885 static void __devexit snd_m3_remove(struct pci_dev *pci)
2886 {
2887 	snd_card_free(pci_get_drvdata(pci));
2888 	pci_set_drvdata(pci, NULL);
2889 }
2890 
2891 static struct pci_driver driver = {
2892 	.name = "Maestro3",
2893 	.id_table = snd_m3_ids,
2894 	.probe = snd_m3_probe,
2895 	.remove = __devexit_p(snd_m3_remove),
2896 	SND_PCI_PM_CALLBACKS
2897 };
2898 
2899 static int __init alsa_card_m3_init(void)
2900 {
2901 	return pci_register_driver(&driver);
2902 }
2903 
2904 static void __exit alsa_card_m3_exit(void)
2905 {
2906 	pci_unregister_driver(&driver);
2907 }
2908 
2909 module_init(alsa_card_m3_init)
2910 module_exit(alsa_card_m3_exit)
2911