xref: /openbmc/linux/sound/pci/maestro3.c (revision 87c2ce3b)
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 /* quirk lists */
771 struct m3_quirk {
772 	const char *name;	/* device name */
773 	u16 vendor, device;	/* subsystem ids */
774 	int amp_gpio;		/* gpio pin #  for external amp, -1 = default */
775 	int irda_workaround;	/* non-zero if avoid to touch 0x10 on GPIO_DIRECTION
776 				   (e.g. for IrDA on Dell Inspirons) */
777 };
778 
779 struct m3_hv_quirk {
780 	u16 vendor, device, subsystem_vendor, subsystem_device;
781 	u32 config;		/* ALLEGRO_CONFIG hardware volume bits */
782 	int is_omnibook;	/* Do HP OmniBook GPIO magic? */
783 };
784 
785 struct m3_list {
786 	int curlen;
787 	int mem_addr;
788 	int max;
789 };
790 
791 struct m3_dma {
792 
793 	int number;
794 	struct snd_pcm_substream *substream;
795 
796 	struct assp_instance {
797 		unsigned short code, data;
798 	} inst;
799 
800 	int running;
801 	int opened;
802 
803 	unsigned long buffer_addr;
804 	int dma_size;
805 	int period_size;
806 	unsigned int hwptr;
807 	int count;
808 
809 	int index[3];
810 	struct m3_list *index_list[3];
811 
812         int in_lists;
813 
814 	struct list_head list;
815 
816 };
817 
818 struct snd_m3 {
819 
820 	struct snd_card *card;
821 
822 	unsigned long iobase;
823 
824 	int irq;
825 	unsigned int allegro_flag : 1;
826 
827 	struct snd_ac97 *ac97;
828 
829 	struct snd_pcm *pcm;
830 
831 	struct pci_dev *pci;
832 	struct m3_quirk *quirk;
833 	struct m3_hv_quirk *hv_quirk;
834 
835 	int dacs_active;
836 	int timer_users;
837 
838 	struct m3_list  msrc_list;
839 	struct m3_list  mixer_list;
840 	struct m3_list  adc1_list;
841 	struct m3_list  dma_list;
842 
843 	/* for storing reset state..*/
844 	u8 reset_state;
845 
846 	int external_amp;
847 	int amp_gpio;
848 
849 	/* midi */
850 	struct snd_rawmidi *rmidi;
851 
852 	/* pcm streams */
853 	int num_substreams;
854 	struct m3_dma *substreams;
855 
856 	spinlock_t reg_lock;
857 	spinlock_t ac97_lock;
858 
859 	struct snd_kcontrol *master_switch;
860 	struct snd_kcontrol *master_volume;
861 	struct tasklet_struct hwvol_tq;
862 
863 #ifdef CONFIG_PM
864 	u16 *suspend_mem;
865 #endif
866 };
867 
868 /*
869  * pci ids
870  */
871 static struct pci_device_id snd_m3_ids[] = {
872 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
873 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
874 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
875 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
876 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
877 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
878 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
879 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
880 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
881 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
882 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
883 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
884 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
885 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
886 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
887 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
888 	{0,},
889 };
890 
891 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
892 
893 static struct m3_quirk m3_quirk_list[] = {
894 	/* panasonic CF-28 "toughbook" */
895 	{
896 		.name = "Panasonic CF-28",
897 		.vendor = 0x10f7,
898 		.device = 0x833e,
899 		.amp_gpio = 0x0d,
900 	},
901 	/* panasonic CF-72 "toughbook" */
902 	{
903 		.name = "Panasonic CF-72",
904 		.vendor = 0x10f7,
905 		.device = 0x833d,
906 		.amp_gpio = 0x0d,
907 	},
908 	/* Dell Inspiron 4000 */
909 	{
910 		.name = "Dell Inspiron 4000",
911 		.vendor = 0x1028,
912 		.device = 0x00b0,
913 		.amp_gpio = -1,
914 		.irda_workaround = 1,
915 	},
916 	/* Dell Inspiron 8000 */
917 	{
918 		.name = "Dell Inspiron 8000",
919 		.vendor = 0x1028,
920 		.device = 0x00a4,
921 		.amp_gpio = -1,
922 		.irda_workaround = 1,
923 	},
924 	/* Dell Inspiron 8100 */
925 	{
926 		.name = "Dell Inspiron 8100",
927 		.vendor = 0x1028,
928 		.device = 0x00e6,
929 		.amp_gpio = -1,
930 		.irda_workaround = 1,
931 	},
932 	/* NEC LM800J/7 */
933 	{
934 		.name = "NEC LM800J/7",
935 		.vendor = 0x1033,
936 		.device = 0x80f1,
937 		.amp_gpio = 0x03,
938 	},
939 	/* LEGEND ZhaoYang 3100CF */
940 	{
941 		.name = "LEGEND ZhaoYang 3100CF",
942 		.vendor = 0x1509,
943 		.device = 0x1740,
944 		.amp_gpio = 0x03,
945 	},
946 	/* END */
947 	{ NULL }
948 };
949 
950 /* These values came from the Windows driver. */
951 static struct m3_hv_quirk m3_hv_quirk_list[] = {
952 	/* Allegro chips */
953 	{ 0x125D, 0x1988, 0x0E11, 0x002E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
954 	{ 0x125D, 0x1988, 0x0E11, 0x0094, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
955 	{ 0x125D, 0x1988, 0x0E11, 0xB112, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
956 	{ 0x125D, 0x1988, 0x0E11, 0xB114, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
957 	{ 0x125D, 0x1988, 0x103C, 0x0012, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
958 	{ 0x125D, 0x1988, 0x103C, 0x0018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
959 	{ 0x125D, 0x1988, 0x103C, 0x001C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
960 	{ 0x125D, 0x1988, 0x103C, 0x001D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
961 	{ 0x125D, 0x1988, 0x103C, 0x001E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
962 	{ 0x125D, 0x1988, 0x107B, 0x3350, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
963 	{ 0x125D, 0x1988, 0x10F7, 0x8338, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
964 	{ 0x125D, 0x1988, 0x10F7, 0x833C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
965 	{ 0x125D, 0x1988, 0x10F7, 0x833D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
966 	{ 0x125D, 0x1988, 0x10F7, 0x833E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
967 	{ 0x125D, 0x1988, 0x10F7, 0x833F, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
968 	{ 0x125D, 0x1988, 0x13BD, 0x1018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
969 	{ 0x125D, 0x1988, 0x13BD, 0x1019, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
970 	{ 0x125D, 0x1988, 0x13BD, 0x101A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
971 	{ 0x125D, 0x1988, 0x14FF, 0x0F03, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
972 	{ 0x125D, 0x1988, 0x14FF, 0x0F04, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
973 	{ 0x125D, 0x1988, 0x14FF, 0x0F05, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
974 	{ 0x125D, 0x1988, 0x156D, 0xB400, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
975 	{ 0x125D, 0x1988, 0x156D, 0xB795, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
976 	{ 0x125D, 0x1988, 0x156D, 0xB797, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
977 	{ 0x125D, 0x1988, 0x156D, 0xC700, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
978 	{ 0x125D, 0x1988, 0x1033, 0x80F1, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
979 	{ 0x125D, 0x1988, 0x103C, 0x001A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 }, /* HP OmniBook 6100 */
980 	{ 0x125D, 0x1988, 0x107B, 0x340A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
981 	{ 0x125D, 0x1988, 0x107B, 0x3450, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
982 	{ 0x125D, 0x1988, 0x109F, 0x3134, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
983 	{ 0x125D, 0x1988, 0x109F, 0x3161, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
984 	{ 0x125D, 0x1988, 0x144D, 0x3280, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
985 	{ 0x125D, 0x1988, 0x144D, 0x3281, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
986 	{ 0x125D, 0x1988, 0x144D, 0xC002, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
987 	{ 0x125D, 0x1988, 0x144D, 0xC003, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
988 	{ 0x125D, 0x1988, 0x1509, 0x1740, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
989 	{ 0x125D, 0x1988, 0x1610, 0x0010, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
990 	{ 0x125D, 0x1988, 0x1042, 0x1042, HV_CTRL_ENABLE, 0 },
991 	{ 0x125D, 0x1988, 0x107B, 0x9500, HV_CTRL_ENABLE, 0 },
992 	{ 0x125D, 0x1988, 0x14FF, 0x0F06, HV_CTRL_ENABLE, 0 },
993 	{ 0x125D, 0x1988, 0x1558, 0x8586, HV_CTRL_ENABLE, 0 },
994 	{ 0x125D, 0x1988, 0x161F, 0x2011, HV_CTRL_ENABLE, 0 },
995 	/* Maestro3 chips */
996 	{ 0x125D, 0x1998, 0x103C, 0x000E, HV_CTRL_ENABLE, 0 },
997 	{ 0x125D, 0x1998, 0x103C, 0x0010, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 6000 */
998 	{ 0x125D, 0x1998, 0x103C, 0x0011, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 500 */
999 	{ 0x125D, 0x1998, 0x103C, 0x001B, HV_CTRL_ENABLE, 0 },
1000 	{ 0x125D, 0x1998, 0x104D, 0x80A6, HV_CTRL_ENABLE, 0 },
1001 	{ 0x125D, 0x1998, 0x104D, 0x80AA, HV_CTRL_ENABLE, 0 },
1002 	{ 0x125D, 0x1998, 0x107B, 0x5300, HV_CTRL_ENABLE, 0 },
1003 	{ 0x125D, 0x1998, 0x110A, 0x1998, HV_CTRL_ENABLE, 0 },
1004 	{ 0x125D, 0x1998, 0x13BD, 0x1015, HV_CTRL_ENABLE, 0 },
1005 	{ 0x125D, 0x1998, 0x13BD, 0x101C, HV_CTRL_ENABLE, 0 },
1006 	{ 0x125D, 0x1998, 0x13BD, 0x1802, HV_CTRL_ENABLE, 0 },
1007 	{ 0x125D, 0x1998, 0x1599, 0x0715, HV_CTRL_ENABLE, 0 },
1008 	{ 0x125D, 0x1998, 0x5643, 0x5643, HV_CTRL_ENABLE, 0 },
1009 	{ 0x125D, 0x199A, 0x144D, 0x3260, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1010 	{ 0x125D, 0x199A, 0x144D, 0x3261, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1011 	{ 0x125D, 0x199A, 0x144D, 0xC000, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1012 	{ 0x125D, 0x199A, 0x144D, 0xC001, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1013 	{ 0 }
1014 };
1015 
1016 /*
1017  * lowlevel functions
1018  */
1019 
1020 static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
1021 {
1022 	outw(value, chip->iobase + reg);
1023 }
1024 
1025 static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
1026 {
1027 	return inw(chip->iobase + reg);
1028 }
1029 
1030 static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
1031 {
1032 	outb(value, chip->iobase + reg);
1033 }
1034 
1035 static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
1036 {
1037 	return inb(chip->iobase + reg);
1038 }
1039 
1040 /*
1041  * access 16bit words to the code or data regions of the dsp's memory.
1042  * index addresses 16bit words.
1043  */
1044 static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
1045 {
1046 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1047 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1048 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1049 }
1050 
1051 static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
1052 {
1053 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1054 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1055 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1056 }
1057 
1058 static void snd_m3_assp_halt(struct snd_m3 *chip)
1059 {
1060 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1061 	msleep(10);
1062 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1063 }
1064 
1065 static void snd_m3_assp_continue(struct snd_m3 *chip)
1066 {
1067 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1068 }
1069 
1070 
1071 /*
1072  * This makes me sad. the maestro3 has lists
1073  * internally that must be packed.. 0 terminates,
1074  * apparently, or maybe all unused entries have
1075  * to be 0, the lists have static lengths set
1076  * by the binary code images.
1077  */
1078 
1079 static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
1080 {
1081 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1082 			  list->mem_addr + list->curlen,
1083 			  val);
1084 	return list->curlen++;
1085 }
1086 
1087 static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
1088 {
1089 	u16  val;
1090 	int lastindex = list->curlen - 1;
1091 
1092 	if (index != lastindex) {
1093 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1094 				       list->mem_addr + lastindex);
1095 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1096 				  list->mem_addr + index,
1097 				  val);
1098 	}
1099 
1100 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1101 			  list->mem_addr + lastindex,
1102 			  0);
1103 
1104 	list->curlen--;
1105 }
1106 
1107 static void snd_m3_inc_timer_users(struct snd_m3 *chip)
1108 {
1109 	chip->timer_users++;
1110 	if (chip->timer_users != 1)
1111 		return;
1112 
1113 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1114 			  KDATA_TIMER_COUNT_RELOAD,
1115 			  240);
1116 
1117 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1118 			  KDATA_TIMER_COUNT_CURRENT,
1119 			  240);
1120 
1121 	snd_m3_outw(chip,
1122 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1123 		    HOST_INT_CTRL);
1124 }
1125 
1126 static void snd_m3_dec_timer_users(struct snd_m3 *chip)
1127 {
1128 	chip->timer_users--;
1129 	if (chip->timer_users > 0)
1130 		return;
1131 
1132 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1133 			  KDATA_TIMER_COUNT_RELOAD,
1134 			  0);
1135 
1136 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1137 			  KDATA_TIMER_COUNT_CURRENT,
1138 			  0);
1139 
1140 	snd_m3_outw(chip,
1141 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1142 		    HOST_INT_CTRL);
1143 }
1144 
1145 /*
1146  * start/stop
1147  */
1148 
1149 /* spinlock held! */
1150 static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
1151 			    struct snd_pcm_substream *subs)
1152 {
1153 	if (! s || ! subs)
1154 		return -EINVAL;
1155 
1156 	snd_m3_inc_timer_users(chip);
1157 	switch (subs->stream) {
1158 	case SNDRV_PCM_STREAM_PLAYBACK:
1159 		chip->dacs_active++;
1160 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1161 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1162 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1163 				  KDATA_MIXER_TASK_NUMBER,
1164 				  chip->dacs_active);
1165 		break;
1166 	case SNDRV_PCM_STREAM_CAPTURE:
1167 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1168 				  KDATA_ADC1_REQUEST, 1);
1169 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1170 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1171 		break;
1172 	}
1173 	return 0;
1174 }
1175 
1176 /* spinlock held! */
1177 static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
1178 			   struct snd_pcm_substream *subs)
1179 {
1180 	if (! s || ! subs)
1181 		return -EINVAL;
1182 
1183 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1184 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1185 	snd_m3_dec_timer_users(chip);
1186 	switch (subs->stream) {
1187 	case SNDRV_PCM_STREAM_PLAYBACK:
1188 		chip->dacs_active--;
1189 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1190 				  KDATA_MIXER_TASK_NUMBER,
1191 				  chip->dacs_active);
1192 		break;
1193 	case SNDRV_PCM_STREAM_CAPTURE:
1194 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1195 				  KDATA_ADC1_REQUEST, 0);
1196 		break;
1197 	}
1198 	return 0;
1199 }
1200 
1201 static int
1202 snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
1203 {
1204 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1205 	struct m3_dma *s = subs->runtime->private_data;
1206 	int err = -EINVAL;
1207 
1208 	snd_assert(s != NULL, return -ENXIO);
1209 
1210 	spin_lock(&chip->reg_lock);
1211 	switch (cmd) {
1212 	case SNDRV_PCM_TRIGGER_START:
1213 	case SNDRV_PCM_TRIGGER_RESUME:
1214 		if (s->running)
1215 			err = -EBUSY;
1216 		else {
1217 			s->running = 1;
1218 			err = snd_m3_pcm_start(chip, s, subs);
1219 		}
1220 		break;
1221 	case SNDRV_PCM_TRIGGER_STOP:
1222 	case SNDRV_PCM_TRIGGER_SUSPEND:
1223 		if (! s->running)
1224 			err = 0; /* should return error? */
1225 		else {
1226 			s->running = 0;
1227 			err = snd_m3_pcm_stop(chip, s, subs);
1228 		}
1229 		break;
1230 	}
1231 	spin_unlock(&chip->reg_lock);
1232 	return err;
1233 }
1234 
1235 /*
1236  * setup
1237  */
1238 static void
1239 snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1240 {
1241 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1242 	struct snd_pcm_runtime *runtime = subs->runtime;
1243 
1244 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1245 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1246 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1247 	} else {
1248 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1249 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1250 	}
1251 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1252 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1253 
1254 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1255 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1256 	s->hwptr = 0;
1257 	s->count = 0;
1258 
1259 #define LO(x) ((x) & 0xffff)
1260 #define HI(x) LO((x) >> 16)
1261 
1262 	/* host dma buffer pointers */
1263 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1264 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1265 			  LO(s->buffer_addr));
1266 
1267 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1268 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1269 			  HI(s->buffer_addr));
1270 
1271 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1272 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1273 			  LO(s->buffer_addr + s->dma_size));
1274 
1275 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1276 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1277 			  HI(s->buffer_addr + s->dma_size));
1278 
1279 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1280 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1281 			  LO(s->buffer_addr));
1282 
1283 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1284 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1285 			  HI(s->buffer_addr));
1286 #undef LO
1287 #undef HI
1288 
1289 	/* dsp buffers */
1290 
1291 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1292 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1293 			  dsp_in_buffer);
1294 
1295 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1296 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1297 			  dsp_in_buffer + (dsp_in_size / 2));
1298 
1299 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1300 			  s->inst.data + CDATA_IN_BUF_HEAD,
1301 			  dsp_in_buffer);
1302 
1303 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1304 			  s->inst.data + CDATA_IN_BUF_TAIL,
1305 			  dsp_in_buffer);
1306 
1307 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1308 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1309 			  dsp_out_buffer);
1310 
1311 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1312 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1313 			  dsp_out_buffer + (dsp_out_size / 2));
1314 
1315 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1316 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1317 			  dsp_out_buffer);
1318 
1319 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1320 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1321 			  dsp_out_buffer);
1322 }
1323 
1324 static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
1325 			      struct snd_pcm_runtime *runtime)
1326 {
1327 	u32 freq;
1328 
1329 	/*
1330 	 * put us in the lists if we're not already there
1331 	 */
1332 	if (! s->in_lists) {
1333 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1334 					      s->inst.data >> DP_SHIFT_COUNT);
1335 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1336 					      s->inst.data >> DP_SHIFT_COUNT);
1337 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1338 					      s->inst.data >> DP_SHIFT_COUNT);
1339 		s->in_lists = 1;
1340 	}
1341 
1342 	/* write to 'mono' word */
1343 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1344 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1345 			  runtime->channels == 2 ? 0 : 1);
1346 	/* write to '8bit' word */
1347 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1348 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1349 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1350 
1351 	/* set up dac/adc rate */
1352 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1353 	if (freq)
1354 		freq--;
1355 
1356 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1357 			  s->inst.data + CDATA_FREQUENCY,
1358 			  freq);
1359 }
1360 
1361 
1362 static struct play_vals {
1363 	u16 addr, val;
1364 } pv[] = {
1365 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1366 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1367 	{SRC3_DIRECTION_OFFSET, 0} ,
1368 	/* +1, +2 are stereo/16 bit */
1369 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1370 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1371 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1372 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1373 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1374 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1375 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1376 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1377 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1378 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1379 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1380 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1381 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1382 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1383 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1384 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1385 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1386 };
1387 
1388 
1389 /* the mode passed should be already shifted and masked */
1390 static void
1391 snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
1392 		      struct snd_pcm_substream *subs)
1393 {
1394 	unsigned int i;
1395 
1396 	/*
1397 	 * some per client initializers
1398 	 */
1399 
1400 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1401 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1402 			  s->inst.data + 40 + 8);
1403 
1404 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1405 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1406 			  s->inst.code + MINISRC_COEF_LOC);
1407 
1408 	/* enable or disable low pass filter? */
1409 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1410 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1411 			  subs->runtime->rate > 45000 ? 0xff : 0);
1412 
1413 	/* tell it which way dma is going? */
1414 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1415 			  s->inst.data + CDATA_DMA_CONTROL,
1416 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1417 
1418 	/*
1419 	 * set an armload of static initializers
1420 	 */
1421 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1422 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1423 				  s->inst.data + pv[i].addr, pv[i].val);
1424 }
1425 
1426 /*
1427  *    Native record driver
1428  */
1429 static struct rec_vals {
1430 	u16 addr, val;
1431 } rv[] = {
1432 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1433 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1434 	{SRC3_DIRECTION_OFFSET, 1} ,
1435 	/* +1, +2 are stereo/16 bit */
1436 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1437 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1438 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1439 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1440 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1441 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1442 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1443 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1444 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1445 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1446 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1447 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1448 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1449 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1450 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1451 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1452 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1453 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1454 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1455 };
1456 
1457 static void
1458 snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1459 {
1460 	unsigned int i;
1461 
1462 	/*
1463 	 * some per client initializers
1464 	 */
1465 
1466 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1467 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1468 			  s->inst.data + 40 + 8);
1469 
1470 	/* tell it which way dma is going? */
1471 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1472 			  s->inst.data + CDATA_DMA_CONTROL,
1473 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1474 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1475 
1476 	/*
1477 	 * set an armload of static initializers
1478 	 */
1479 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1480 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1481 				  s->inst.data + rv[i].addr, rv[i].val);
1482 }
1483 
1484 static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
1485 				struct snd_pcm_hw_params *hw_params)
1486 {
1487 	struct m3_dma *s = substream->runtime->private_data;
1488 	int err;
1489 
1490 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1491 		return err;
1492 	/* set buffer address */
1493 	s->buffer_addr = substream->runtime->dma_addr;
1494 	if (s->buffer_addr & 0x3) {
1495 		snd_printk(KERN_ERR "oh my, not aligned\n");
1496 		s->buffer_addr = s->buffer_addr & ~0x3;
1497 	}
1498 	return 0;
1499 }
1500 
1501 static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
1502 {
1503 	struct m3_dma *s;
1504 
1505 	if (substream->runtime->private_data == NULL)
1506 		return 0;
1507 	s = substream->runtime->private_data;
1508 	snd_pcm_lib_free_pages(substream);
1509 	s->buffer_addr = 0;
1510 	return 0;
1511 }
1512 
1513 static int
1514 snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
1515 {
1516 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1517 	struct snd_pcm_runtime *runtime = subs->runtime;
1518 	struct m3_dma *s = runtime->private_data;
1519 
1520 	snd_assert(s != NULL, return -ENXIO);
1521 
1522 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1523 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1524 		return -EINVAL;
1525 	if (runtime->rate > 48000 ||
1526 	    runtime->rate < 8000)
1527 		return -EINVAL;
1528 
1529 	spin_lock_irq(&chip->reg_lock);
1530 
1531 	snd_m3_pcm_setup1(chip, s, subs);
1532 
1533 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1534 		snd_m3_playback_setup(chip, s, subs);
1535 	else
1536 		snd_m3_capture_setup(chip, s, subs);
1537 
1538 	snd_m3_pcm_setup2(chip, s, runtime);
1539 
1540 	spin_unlock_irq(&chip->reg_lock);
1541 
1542 	return 0;
1543 }
1544 
1545 /*
1546  * get current pointer
1547  */
1548 static unsigned int
1549 snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1550 {
1551 	u16 hi = 0, lo = 0;
1552 	int retry = 10;
1553 	u32 addr;
1554 
1555 	/*
1556 	 * try and get a valid answer
1557 	 */
1558 	while (retry--) {
1559 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1560 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1561 
1562 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1563 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1564 
1565 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1566 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1567 			break;
1568 	}
1569 	addr = lo | ((u32)hi<<16);
1570 	return (unsigned int)(addr - s->buffer_addr);
1571 }
1572 
1573 static snd_pcm_uframes_t
1574 snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
1575 {
1576 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1577 	unsigned int ptr;
1578 	struct m3_dma *s = subs->runtime->private_data;
1579 	snd_assert(s != NULL, return 0);
1580 
1581 	spin_lock(&chip->reg_lock);
1582 	ptr = snd_m3_get_pointer(chip, s, subs);
1583 	spin_unlock(&chip->reg_lock);
1584 	return bytes_to_frames(subs->runtime, ptr);
1585 }
1586 
1587 
1588 /* update pointer */
1589 /* spinlock held! */
1590 static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
1591 {
1592 	struct snd_pcm_substream *subs = s->substream;
1593 	unsigned int hwptr;
1594 	int diff;
1595 
1596 	if (! s->running)
1597 		return;
1598 
1599 	hwptr = snd_m3_get_pointer(chip, s, subs) % s->dma_size;
1600 	diff = (s->dma_size + hwptr - s->hwptr) % s->dma_size;
1601 	s->hwptr = hwptr;
1602 	s->count += diff;
1603 	if (s->count >= (signed)s->period_size) {
1604 		s->count %= s->period_size;
1605 		spin_unlock(&chip->reg_lock);
1606 		snd_pcm_period_elapsed(subs);
1607 		spin_lock(&chip->reg_lock);
1608 	}
1609 }
1610 
1611 static void snd_m3_update_hw_volume(unsigned long private_data)
1612 {
1613 	struct snd_m3 *chip = (struct snd_m3 *) private_data;
1614 	int x, val;
1615 	unsigned long flags;
1616 
1617 	/* Figure out which volume control button was pushed,
1618 	   based on differences from the default register
1619 	   values. */
1620 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1621 
1622 	/* Reset the volume control registers. */
1623 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1624 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1625 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1626 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1627 
1628 	if (!chip->master_switch || !chip->master_volume)
1629 		return;
1630 
1631 	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
1632 	spin_lock_irqsave(&chip->ac97_lock, flags);
1633 
1634 	val = chip->ac97->regs[AC97_MASTER_VOL];
1635 	switch (x) {
1636 	case 0x88:
1637 		/* mute */
1638 		val ^= 0x8000;
1639 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1640 		outw(val, chip->iobase + CODEC_DATA);
1641 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1642 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1643 			       &chip->master_switch->id);
1644 		break;
1645 	case 0xaa:
1646 		/* volume up */
1647 		if ((val & 0x7f) > 0)
1648 			val--;
1649 		if ((val & 0x7f00) > 0)
1650 			val -= 0x0100;
1651 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1652 		outw(val, chip->iobase + CODEC_DATA);
1653 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1654 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1655 			       &chip->master_volume->id);
1656 		break;
1657 	case 0x66:
1658 		/* volume down */
1659 		if ((val & 0x7f) < 0x1f)
1660 			val++;
1661 		if ((val & 0x7f00) < 0x1f00)
1662 			val += 0x0100;
1663 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1664 		outw(val, chip->iobase + CODEC_DATA);
1665 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1666 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1667 			       &chip->master_volume->id);
1668 		break;
1669 	}
1670 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1671 }
1672 
1673 static irqreturn_t
1674 snd_m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1675 {
1676 	struct snd_m3 *chip = dev_id;
1677 	u8 status;
1678 	int i;
1679 
1680 	status = inb(chip->iobase + HOST_INT_STATUS);
1681 
1682 	if (status == 0xff)
1683 		return IRQ_NONE;
1684 
1685 	if (status & HV_INT_PENDING)
1686 		tasklet_hi_schedule(&chip->hwvol_tq);
1687 
1688 	/*
1689 	 * ack an assp int if its running
1690 	 * and has an int pending
1691 	 */
1692 	if (status & ASSP_INT_PENDING) {
1693 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1694 		if (!(ctl & STOP_ASSP_CLOCK)) {
1695 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1696 			if (ctl & DSP2HOST_REQ_TIMER) {
1697 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1698 				/* update adc/dac info if it was a timer int */
1699 				spin_lock(&chip->reg_lock);
1700 				for (i = 0; i < chip->num_substreams; i++) {
1701 					struct m3_dma *s = &chip->substreams[i];
1702 					if (s->running)
1703 						snd_m3_update_ptr(chip, s);
1704 				}
1705 				spin_unlock(&chip->reg_lock);
1706 			}
1707 		}
1708 	}
1709 
1710 #if 0 /* TODO: not supported yet */
1711 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1712 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1713 #endif
1714 
1715 	/* ack ints */
1716 	outb(status, chip->iobase + HOST_INT_STATUS);
1717 
1718 	return IRQ_HANDLED;
1719 }
1720 
1721 
1722 /*
1723  */
1724 
1725 static struct snd_pcm_hardware snd_m3_playback =
1726 {
1727 	.info =			(SNDRV_PCM_INFO_MMAP |
1728 				 SNDRV_PCM_INFO_INTERLEAVED |
1729 				 SNDRV_PCM_INFO_MMAP_VALID |
1730 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1731 				 /*SNDRV_PCM_INFO_PAUSE |*/
1732 				 SNDRV_PCM_INFO_RESUME),
1733 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1734 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1735 	.rate_min =		8000,
1736 	.rate_max =		48000,
1737 	.channels_min =		1,
1738 	.channels_max =		2,
1739 	.buffer_bytes_max =	(512*1024),
1740 	.period_bytes_min =	64,
1741 	.period_bytes_max =	(512*1024),
1742 	.periods_min =		1,
1743 	.periods_max =		1024,
1744 };
1745 
1746 static struct snd_pcm_hardware snd_m3_capture =
1747 {
1748 	.info =			(SNDRV_PCM_INFO_MMAP |
1749 				 SNDRV_PCM_INFO_INTERLEAVED |
1750 				 SNDRV_PCM_INFO_MMAP_VALID |
1751 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1752 				 /*SNDRV_PCM_INFO_PAUSE |*/
1753 				 SNDRV_PCM_INFO_RESUME),
1754 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1755 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1756 	.rate_min =		8000,
1757 	.rate_max =		48000,
1758 	.channels_min =		1,
1759 	.channels_max =		2,
1760 	.buffer_bytes_max =	(512*1024),
1761 	.period_bytes_min =	64,
1762 	.period_bytes_max =	(512*1024),
1763 	.periods_min =		1,
1764 	.periods_max =		1024,
1765 };
1766 
1767 
1768 /*
1769  */
1770 
1771 static int
1772 snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1773 {
1774 	int i;
1775 	struct m3_dma *s;
1776 
1777 	spin_lock_irq(&chip->reg_lock);
1778 	for (i = 0; i < chip->num_substreams; i++) {
1779 		s = &chip->substreams[i];
1780 		if (! s->opened)
1781 			goto __found;
1782 	}
1783 	spin_unlock_irq(&chip->reg_lock);
1784 	return -ENOMEM;
1785 __found:
1786 	s->opened = 1;
1787 	s->running = 0;
1788 	spin_unlock_irq(&chip->reg_lock);
1789 
1790 	subs->runtime->private_data = s;
1791 	s->substream = subs;
1792 
1793 	/* set list owners */
1794 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1795 		s->index_list[0] = &chip->mixer_list;
1796 	} else
1797 		s->index_list[0] = &chip->adc1_list;
1798 	s->index_list[1] = &chip->msrc_list;
1799 	s->index_list[2] = &chip->dma_list;
1800 
1801 	return 0;
1802 }
1803 
1804 static void
1805 snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1806 {
1807 	struct m3_dma *s = subs->runtime->private_data;
1808 
1809 	if (s == NULL)
1810 		return; /* not opened properly */
1811 
1812 	spin_lock_irq(&chip->reg_lock);
1813 	if (s->substream && s->running)
1814 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1815 	if (s->in_lists) {
1816 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1817 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1818 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1819 		s->in_lists = 0;
1820 	}
1821 	s->running = 0;
1822 	s->opened = 0;
1823 	spin_unlock_irq(&chip->reg_lock);
1824 }
1825 
1826 static int
1827 snd_m3_playback_open(struct snd_pcm_substream *subs)
1828 {
1829 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1830 	struct snd_pcm_runtime *runtime = subs->runtime;
1831 	int err;
1832 
1833 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1834 		return err;
1835 
1836 	runtime->hw = snd_m3_playback;
1837 	snd_pcm_set_sync(subs);
1838 
1839 	return 0;
1840 }
1841 
1842 static int
1843 snd_m3_playback_close(struct snd_pcm_substream *subs)
1844 {
1845 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1846 
1847 	snd_m3_substream_close(chip, subs);
1848 	return 0;
1849 }
1850 
1851 static int
1852 snd_m3_capture_open(struct snd_pcm_substream *subs)
1853 {
1854 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1855 	struct snd_pcm_runtime *runtime = subs->runtime;
1856 	int err;
1857 
1858 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1859 		return err;
1860 
1861 	runtime->hw = snd_m3_capture;
1862 	snd_pcm_set_sync(subs);
1863 
1864 	return 0;
1865 }
1866 
1867 static int
1868 snd_m3_capture_close(struct snd_pcm_substream *subs)
1869 {
1870 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1871 
1872 	snd_m3_substream_close(chip, subs);
1873 	return 0;
1874 }
1875 
1876 /*
1877  * create pcm instance
1878  */
1879 
1880 static struct snd_pcm_ops snd_m3_playback_ops = {
1881 	.open =		snd_m3_playback_open,
1882 	.close =	snd_m3_playback_close,
1883 	.ioctl =	snd_pcm_lib_ioctl,
1884 	.hw_params =	snd_m3_pcm_hw_params,
1885 	.hw_free =	snd_m3_pcm_hw_free,
1886 	.prepare =	snd_m3_pcm_prepare,
1887 	.trigger =	snd_m3_pcm_trigger,
1888 	.pointer =	snd_m3_pcm_pointer,
1889 };
1890 
1891 static struct snd_pcm_ops snd_m3_capture_ops = {
1892 	.open =		snd_m3_capture_open,
1893 	.close =	snd_m3_capture_close,
1894 	.ioctl =	snd_pcm_lib_ioctl,
1895 	.hw_params =	snd_m3_pcm_hw_params,
1896 	.hw_free =	snd_m3_pcm_hw_free,
1897 	.prepare =	snd_m3_pcm_prepare,
1898 	.trigger =	snd_m3_pcm_trigger,
1899 	.pointer =	snd_m3_pcm_pointer,
1900 };
1901 
1902 static int __devinit
1903 snd_m3_pcm(struct snd_m3 * chip, int device)
1904 {
1905 	struct snd_pcm *pcm;
1906 	int err;
1907 
1908 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1909 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1910 	if (err < 0)
1911 		return err;
1912 
1913 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1914 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1915 
1916 	pcm->private_data = chip;
1917 	pcm->info_flags = 0;
1918 	strcpy(pcm->name, chip->card->driver);
1919 	chip->pcm = pcm;
1920 
1921 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1922 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1923 
1924 	return 0;
1925 }
1926 
1927 
1928 /*
1929  * ac97 interface
1930  */
1931 
1932 /*
1933  * Wait for the ac97 serial bus to be free.
1934  * return nonzero if the bus is still busy.
1935  */
1936 static int snd_m3_ac97_wait(struct snd_m3 *chip)
1937 {
1938 	int i = 10000;
1939 
1940 	do {
1941 		if (! (snd_m3_inb(chip, 0x30) & 1))
1942 			return 0;
1943 	} while (i-- > 0);
1944 
1945 	snd_printk(KERN_ERR "ac97 serial bus busy\n");
1946 	return 1;
1947 }
1948 
1949 static unsigned short
1950 snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1951 {
1952 	struct snd_m3 *chip = ac97->private_data;
1953 	unsigned long flags;
1954 	unsigned short data;
1955 
1956 	if (snd_m3_ac97_wait(chip))
1957 		return 0xffff;
1958 	spin_lock_irqsave(&chip->ac97_lock, flags);
1959 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1960 	if (snd_m3_ac97_wait(chip))
1961 		return 0xffff;
1962 	data = snd_m3_inw(chip, CODEC_DATA);
1963 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1964 	return data;
1965 }
1966 
1967 static void
1968 snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
1969 {
1970 	struct snd_m3 *chip = ac97->private_data;
1971 	unsigned long flags;
1972 
1973 	if (snd_m3_ac97_wait(chip))
1974 		return;
1975 	spin_lock_irqsave(&chip->ac97_lock, flags);
1976 	snd_m3_outw(chip, val, CODEC_DATA);
1977 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1978 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1979 }
1980 
1981 
1982 static void snd_m3_remote_codec_config(int io, int isremote)
1983 {
1984 	isremote = isremote ? 1 : 0;
1985 
1986 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
1987 	     io + RING_BUS_CTRL_B);
1988 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
1989 	     io + SDO_OUT_DEST_CTRL);
1990 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
1991 	     io + SDO_IN_DEST_CTRL);
1992 }
1993 
1994 /*
1995  * hack, returns non zero on err
1996  */
1997 static int snd_m3_try_read_vendor(struct snd_m3 *chip)
1998 {
1999 	u16 ret;
2000 
2001 	if (snd_m3_ac97_wait(chip))
2002 		return 1;
2003 
2004 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
2005 
2006 	if (snd_m3_ac97_wait(chip))
2007 		return 1;
2008 
2009 	ret = snd_m3_inw(chip, 0x32);
2010 
2011 	return (ret == 0) || (ret == 0xffff);
2012 }
2013 
2014 static void snd_m3_ac97_reset(struct snd_m3 *chip)
2015 {
2016 	u16 dir;
2017 	int delay1 = 0, delay2 = 0, i;
2018 	int io = chip->iobase;
2019 
2020 	if (chip->allegro_flag) {
2021 		/*
2022 		 * the onboard codec on the allegro seems
2023 		 * to want to wait a very long time before
2024 		 * coming back to life
2025 		 */
2026 		delay1 = 50;
2027 		delay2 = 800;
2028 	} else {
2029 		/* maestro3 */
2030 		delay1 = 20;
2031 		delay2 = 500;
2032 	}
2033 
2034 	for (i = 0; i < 5; i++) {
2035 		dir = inw(io + GPIO_DIRECTION);
2036 		if (! chip->quirk || ! chip->quirk->irda_workaround)
2037 			dir |= 0x10; /* assuming pci bus master? */
2038 
2039 		snd_m3_remote_codec_config(io, 0);
2040 
2041 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2042 		udelay(20);
2043 
2044 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2045 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2046 		outw(0, io + GPIO_DATA);
2047 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2048 
2049 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));
2050 
2051 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2052 		udelay(5);
2053 		/* ok, bring back the ac-link */
2054 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2055 		outw(~0, io + GPIO_MASK);
2056 
2057 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));
2058 
2059 		if (! snd_m3_try_read_vendor(chip))
2060 			break;
2061 
2062 		delay1 += 10;
2063 		delay2 += 100;
2064 
2065 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2066 			   delay1, delay2);
2067 	}
2068 
2069 #if 0
2070 	/* more gung-ho reset that doesn't
2071 	 * seem to work anywhere :)
2072 	 */
2073 	tmp = inw(io + RING_BUS_CTRL_A);
2074 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2075 	msleep(20);
2076 	outw(tmp, io + RING_BUS_CTRL_A);
2077 	msleep(50);
2078 #endif
2079 }
2080 
2081 static int __devinit snd_m3_mixer(struct snd_m3 *chip)
2082 {
2083 	struct snd_ac97_bus *pbus;
2084 	struct snd_ac97_template ac97;
2085 	struct snd_ctl_elem_id id;
2086 	int err;
2087 	static struct snd_ac97_bus_ops ops = {
2088 		.write = snd_m3_ac97_write,
2089 		.read = snd_m3_ac97_read,
2090 	};
2091 
2092 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2093 		return err;
2094 
2095 	memset(&ac97, 0, sizeof(ac97));
2096 	ac97.private_data = chip;
2097 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2098 		return err;
2099 
2100 	/* seems ac97 PCM needs initialization.. hack hack.. */
2101 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2102 	schedule_timeout_uninterruptible(msecs_to_jiffies(100));
2103 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2104 
2105 	memset(&id, 0, sizeof(id));
2106 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2107 	strcpy(id.name, "Master Playback Switch");
2108 	chip->master_switch = snd_ctl_find_id(chip->card, &id);
2109 	memset(&id, 0, sizeof(id));
2110 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2111 	strcpy(id.name, "Master Playback Volume");
2112 	chip->master_volume = snd_ctl_find_id(chip->card, &id);
2113 
2114 	return 0;
2115 }
2116 
2117 
2118 /*
2119  * DSP Code images
2120  */
2121 
2122 static u16 assp_kernel_image[] __devinitdata = {
2123     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2124     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2125     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2126     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2127     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2128     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2129     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2130     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2131     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2132     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2133     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2134     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2135     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2136     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2137     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2138     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2139     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2140     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2141     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2142     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2143     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2144     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2145     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2146     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2147     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2148     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2149     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2150     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2151     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2152     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2153     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2154     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2155     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2156     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2157     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2158     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2159     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2160     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2161     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2162     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2163     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2164     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2165     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2166     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2167     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2168     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2169     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2170     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2171     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2172     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2173     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2174     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2175     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2176     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2177     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2178     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2179     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2180     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2181     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2182     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2183     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2184     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2185     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2186     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2187     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2188     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2189     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2190     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2191     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2192     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2193     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2194     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2195     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2196     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2197     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2198     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2199     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2200     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2201     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2202     0xBE3A,
2203 };
2204 
2205 /*
2206  * Mini sample rate converter code image
2207  * that is to be loaded at 0x400 on the DSP.
2208  */
2209 static u16 assp_minisrc_image[] __devinitdata = {
2210 
2211     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2212     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2213     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2214     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2215     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2216     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2217     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2218     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2219     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2220     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2221     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2222     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2223     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2224     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2225     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2226     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2227     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2228     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2229     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2230     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2231     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2232     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2233     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2234     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2235     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2236     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2237     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2238     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2239     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2240     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2241     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2242     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2243     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2244 };
2245 
2246 
2247 /*
2248  * initialize ASSP
2249  */
2250 
2251 #define MINISRC_LPF_LEN 10
2252 static u16 minisrc_lpf[MINISRC_LPF_LEN] __devinitdata = {
2253 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2254 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2255 };
2256 
2257 static void __devinit snd_m3_assp_init(struct snd_m3 *chip)
2258 {
2259 	unsigned int i;
2260 
2261 	/* zero kernel data */
2262 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2263 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2264 				  KDATA_BASE_ADDR + i, 0);
2265 
2266 	/* zero mixer data? */
2267 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2268 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2269 				  KDATA_BASE_ADDR2 + i, 0);
2270 
2271 	/* init dma pointer */
2272 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2273 			  KDATA_CURRENT_DMA,
2274 			  KDATA_DMA_XFER0);
2275 
2276 	/* write kernel into code memory.. */
2277 	for (i = 0 ; i < ARRAY_SIZE(assp_kernel_image); i++) {
2278 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2279 				  REV_B_CODE_MEMORY_BEGIN + i,
2280 				  assp_kernel_image[i]);
2281 	}
2282 
2283 	/*
2284 	 * We only have this one client and we know that 0x400
2285 	 * is free in our kernel's mem map, so lets just
2286 	 * drop it there.  It seems that the minisrc doesn't
2287 	 * need vectors, so we won't bother with them..
2288 	 */
2289 	for (i = 0; i < ARRAY_SIZE(assp_minisrc_image); i++) {
2290 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2291 				  0x400 + i,
2292 				  assp_minisrc_image[i]);
2293 	}
2294 
2295 	/*
2296 	 * write the coefficients for the low pass filter?
2297 	 */
2298 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2299 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2300 				  0x400 + MINISRC_COEF_LOC + i,
2301 				  minisrc_lpf[i]);
2302 	}
2303 
2304 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2305 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2306 			  0x8000);
2307 
2308 	/*
2309 	 * the minisrc is the only thing on
2310 	 * our task list..
2311 	 */
2312 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2313 			  KDATA_TASK0,
2314 			  0x400);
2315 
2316 	/*
2317 	 * init the mixer number..
2318 	 */
2319 
2320 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2321 			  KDATA_MIXER_TASK_NUMBER,0);
2322 
2323 	/*
2324 	 * EXTREME KERNEL MASTER VOLUME
2325 	 */
2326 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2327 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2328 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2329 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2330 
2331 	chip->mixer_list.curlen = 0;
2332 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2333 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2334 	chip->adc1_list.curlen = 0;
2335 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2336 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2337 	chip->dma_list.curlen = 0;
2338 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2339 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2340 	chip->msrc_list.curlen = 0;
2341 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2342 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2343 }
2344 
2345 
2346 static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
2347 {
2348 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2349 			       MINISRC_IN_BUFFER_SIZE / 2 +
2350 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2351 	int address, i;
2352 
2353 	/*
2354 	 * the revb memory map has 0x1100 through 0x1c00
2355 	 * free.
2356 	 */
2357 
2358 	/*
2359 	 * align instance address to 256 bytes so that it's
2360 	 * shifted list address is aligned.
2361 	 * list address = (mem address >> 1) >> 7;
2362 	 */
2363 	data_bytes = (data_bytes + 255) & ~255;
2364 	address = 0x1100 + ((data_bytes/2) * index);
2365 
2366 	if ((address + (data_bytes/2)) >= 0x1c00) {
2367 		snd_printk(KERN_ERR "no memory for %d bytes at ind %d (addr 0x%x)\n",
2368 			   data_bytes, index, address);
2369 		return -ENOMEM;
2370 	}
2371 
2372 	s->number = index;
2373 	s->inst.code = 0x400;
2374 	s->inst.data = address;
2375 
2376 	for (i = data_bytes / 2; i > 0; address++, i--) {
2377 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2378 				  address, 0);
2379 	}
2380 
2381 	return 0;
2382 }
2383 
2384 
2385 /*
2386  * this works for the reference board, have to find
2387  * out about others
2388  *
2389  * this needs more magic for 4 speaker, but..
2390  */
2391 static void
2392 snd_m3_amp_enable(struct snd_m3 *chip, int enable)
2393 {
2394 	int io = chip->iobase;
2395 	u16 gpo, polarity;
2396 
2397 	if (! chip->external_amp)
2398 		return;
2399 
2400 	polarity = enable ? 0 : 1;
2401 	polarity = polarity << chip->amp_gpio;
2402 	gpo = 1 << chip->amp_gpio;
2403 
2404 	outw(~gpo, io + GPIO_MASK);
2405 
2406 	outw(inw(io + GPIO_DIRECTION) | gpo,
2407 	     io + GPIO_DIRECTION);
2408 
2409 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2410 	     io + GPIO_DATA);
2411 
2412 	outw(0xffff, io + GPIO_MASK);
2413 }
2414 
2415 static int
2416 snd_m3_chip_init(struct snd_m3 *chip)
2417 {
2418 	struct pci_dev *pcidev = chip->pci;
2419 	unsigned long io = chip->iobase;
2420 	u32 n;
2421 	u16 w;
2422 	u8 t; /* makes as much sense as 'n', no? */
2423 
2424 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2425 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2426 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2427 	       DISABLE_LEGACY);
2428 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2429 
2430 	if (chip->hv_quirk && chip->hv_quirk->is_omnibook) {
2431 		/*
2432 		 * Volume buttons on some HP OmniBook laptops don't work
2433 		 * correctly. This makes them work for the most part.
2434 		 *
2435 		 * Volume up and down buttons on the laptop side work.
2436 		 * Fn+cursor_up (volme up) works.
2437 		 * Fn+cursor_down (volume down) doesn't work.
2438 		 * Fn+F7 (mute) works acts as volume up.
2439 		 */
2440 		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
2441 		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
2442 		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
2443 		outw(0xffff, io + GPIO_MASK);
2444 	}
2445 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2446 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2447 	if (chip->hv_quirk)
2448 		n |= chip->hv_quirk->config;
2449 	/* For some reason we must always use reduced debounce. */
2450 	n |= REDUCED_DEBOUNCE;
2451 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2452 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2453 
2454 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2455 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2456 	n &= ~INT_CLK_SELECT;
2457 	if (!chip->allegro_flag) {
2458 		n &= ~INT_CLK_MULT_ENABLE;
2459 		n |= INT_CLK_SRC_NOT_PCI;
2460 	}
2461 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2462 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2463 
2464 	if (chip->allegro_flag) {
2465 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2466 		n |= IN_CLK_12MHZ_SELECT;
2467 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2468 	}
2469 
2470 	t = inb(chip->iobase + ASSP_CONTROL_A);
2471 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2472 	t |= ASSP_CLK_49MHZ_SELECT;
2473 	t |= ASSP_0_WS_ENABLE;
2474 	outb(t, chip->iobase + ASSP_CONTROL_A);
2475 
2476 	snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
2477 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2478 
2479 	outb(0x00, io + HARDWARE_VOL_CTRL);
2480 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2481 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2482 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2483 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2484 
2485 	return 0;
2486 }
2487 
2488 static void
2489 snd_m3_enable_ints(struct snd_m3 *chip)
2490 {
2491 	unsigned long io = chip->iobase;
2492 	unsigned short val;
2493 
2494 	/* TODO: MPU401 not supported yet */
2495 	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2496 	if (chip->hv_quirk && (chip->hv_quirk->config & HV_CTRL_ENABLE))
2497 		val |= HV_INT_ENABLE;
2498 	outw(val, io + HOST_INT_CTRL);
2499 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2500 	     io + ASSP_CONTROL_C);
2501 }
2502 
2503 
2504 /*
2505  */
2506 
2507 static int snd_m3_free(struct snd_m3 *chip)
2508 {
2509 	struct m3_dma *s;
2510 	int i;
2511 
2512 	if (chip->substreams) {
2513 		spin_lock_irq(&chip->reg_lock);
2514 		for (i = 0; i < chip->num_substreams; i++) {
2515 			s = &chip->substreams[i];
2516 			/* check surviving pcms; this should not happen though.. */
2517 			if (s->substream && s->running)
2518 				snd_m3_pcm_stop(chip, s, s->substream);
2519 		}
2520 		spin_unlock_irq(&chip->reg_lock);
2521 		kfree(chip->substreams);
2522 	}
2523 	if (chip->iobase) {
2524 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2525 	}
2526 
2527 #ifdef CONFIG_PM
2528 	vfree(chip->suspend_mem);
2529 #endif
2530 
2531 	if (chip->irq >= 0) {
2532 		synchronize_irq(chip->irq);
2533 		free_irq(chip->irq, chip);
2534 	}
2535 
2536 	if (chip->iobase)
2537 		pci_release_regions(chip->pci);
2538 
2539 	pci_disable_device(chip->pci);
2540 	kfree(chip);
2541 	return 0;
2542 }
2543 
2544 
2545 /*
2546  * APM support
2547  */
2548 #ifdef CONFIG_PM
2549 static int m3_suspend(struct pci_dev *pci, pm_message_t state)
2550 {
2551 	struct snd_card *card = pci_get_drvdata(pci);
2552 	struct snd_m3 *chip = card->private_data;
2553 	int i, index;
2554 
2555 	if (chip->suspend_mem == NULL)
2556 		return 0;
2557 
2558 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2559 	snd_pcm_suspend_all(chip->pcm);
2560 	snd_ac97_suspend(chip->ac97);
2561 
2562 	msleep(10); /* give the assp a chance to idle.. */
2563 
2564 	snd_m3_assp_halt(chip);
2565 
2566 	/* save dsp image */
2567 	index = 0;
2568 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2569 		chip->suspend_mem[index++] =
2570 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2571 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2572 		chip->suspend_mem[index++] =
2573 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2574 
2575 	/* power down apci registers */
2576 	snd_m3_outw(chip, 0xffff, 0x54);
2577 	snd_m3_outw(chip, 0xffff, 0x56);
2578 
2579 	pci_disable_device(pci);
2580 	pci_save_state(pci);
2581 	return 0;
2582 }
2583 
2584 static int m3_resume(struct pci_dev *pci)
2585 {
2586 	struct snd_card *card = pci_get_drvdata(pci);
2587 	struct snd_m3 *chip = card->private_data;
2588 	int i, index;
2589 
2590 	if (chip->suspend_mem == NULL)
2591 		return 0;
2592 
2593 	pci_restore_state(pci);
2594 	pci_enable_device(pci);
2595 	pci_set_master(pci);
2596 
2597 	/* first lets just bring everything back. .*/
2598 	snd_m3_outw(chip, 0, 0x54);
2599 	snd_m3_outw(chip, 0, 0x56);
2600 
2601 	snd_m3_chip_init(chip);
2602 	snd_m3_assp_halt(chip);
2603 	snd_m3_ac97_reset(chip);
2604 
2605 	/* restore dsp image */
2606 	index = 0;
2607 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2608 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2609 				  chip->suspend_mem[index++]);
2610 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2611 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2612 				  chip->suspend_mem[index++]);
2613 
2614 	/* tell the dma engine to restart itself */
2615 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2616 			  KDATA_DMA_ACTIVE, 0);
2617 
2618         /* restore ac97 registers */
2619 	snd_ac97_resume(chip->ac97);
2620 
2621 	snd_m3_assp_continue(chip);
2622 	snd_m3_enable_ints(chip);
2623 	snd_m3_amp_enable(chip, 1);
2624 
2625 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2626 	return 0;
2627 }
2628 #endif /* CONFIG_PM */
2629 
2630 
2631 /*
2632  */
2633 
2634 static int snd_m3_dev_free(struct snd_device *device)
2635 {
2636 	struct snd_m3 *chip = device->device_data;
2637 	return snd_m3_free(chip);
2638 }
2639 
2640 static int __devinit
2641 snd_m3_create(struct snd_card *card, struct pci_dev *pci,
2642 	      int enable_amp,
2643 	      int amp_gpio,
2644 	      struct snd_m3 **chip_ret)
2645 {
2646 	struct snd_m3 *chip;
2647 	int i, err;
2648 	struct m3_quirk *quirk;
2649 	struct m3_hv_quirk *hv_quirk;
2650 	static struct snd_device_ops ops = {
2651 		.dev_free =	snd_m3_dev_free,
2652 	};
2653 
2654 	*chip_ret = NULL;
2655 
2656 	if (pci_enable_device(pci))
2657 		return -EIO;
2658 
2659 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2660 	if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
2661 	    pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
2662 		snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
2663 		pci_disable_device(pci);
2664 		return -ENXIO;
2665 	}
2666 
2667 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2668 	if (chip == NULL) {
2669 		pci_disable_device(pci);
2670 		return -ENOMEM;
2671 	}
2672 
2673 	spin_lock_init(&chip->reg_lock);
2674 	spin_lock_init(&chip->ac97_lock);
2675 
2676 	switch (pci->device) {
2677 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2678 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2679 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2680 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2681 		chip->allegro_flag = 1;
2682 		break;
2683 	}
2684 
2685 	chip->card = card;
2686 	chip->pci = pci;
2687 	chip->irq = -1;
2688 
2689 	for (quirk = m3_quirk_list; quirk->vendor; quirk++) {
2690 		if (pci->subsystem_vendor == quirk->vendor &&
2691 		    pci->subsystem_device == quirk->device) {
2692 			printk(KERN_INFO "maestro3: enabled hack for '%s'\n", quirk->name);
2693 			chip->quirk = quirk;
2694 			break;
2695 		}
2696 	}
2697 
2698 	for (hv_quirk = m3_hv_quirk_list; hv_quirk->vendor; hv_quirk++) {
2699 		if (pci->vendor == hv_quirk->vendor &&
2700 		    pci->device == hv_quirk->device &&
2701 		    pci->subsystem_vendor == hv_quirk->subsystem_vendor &&
2702 		    pci->subsystem_device == hv_quirk->subsystem_device) {
2703 			chip->hv_quirk = hv_quirk;
2704 			break;
2705 		}
2706 	}
2707 
2708 	chip->external_amp = enable_amp;
2709 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2710 		chip->amp_gpio = amp_gpio;
2711 	else if (chip->quirk && chip->quirk->amp_gpio >= 0)
2712 		chip->amp_gpio = chip->quirk->amp_gpio;
2713 	else if (chip->allegro_flag)
2714 		chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2715 	else /* presumably this is for all 'maestro3's.. */
2716 		chip->amp_gpio = GPO_EXT_AMP_M3;
2717 
2718 	chip->num_substreams = NR_DSPS;
2719 	chip->substreams = kcalloc(chip->num_substreams, sizeof(struct m3_dma),
2720 				   GFP_KERNEL);
2721 	if (chip->substreams == NULL) {
2722 		kfree(chip);
2723 		pci_disable_device(pci);
2724 		return -ENOMEM;
2725 	}
2726 
2727 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2728 		snd_m3_free(chip);
2729 		return err;
2730 	}
2731 	chip->iobase = pci_resource_start(pci, 0);
2732 
2733 	/* just to be sure */
2734 	pci_set_master(pci);
2735 
2736 	snd_m3_chip_init(chip);
2737 	snd_m3_assp_halt(chip);
2738 
2739 	snd_m3_ac97_reset(chip);
2740 
2741 	snd_m3_amp_enable(chip, 1);
2742 
2743 	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);
2744 
2745 	if (request_irq(pci->irq, snd_m3_interrupt, SA_INTERRUPT|SA_SHIRQ,
2746 			card->driver, chip)) {
2747 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2748 		snd_m3_free(chip);
2749 		return -ENOMEM;
2750 	}
2751 	chip->irq = pci->irq;
2752 
2753 #ifdef CONFIG_PM
2754 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2755 	if (chip->suspend_mem == NULL)
2756 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2757 #endif
2758 
2759 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2760 		snd_m3_free(chip);
2761 		return err;
2762 	}
2763 
2764 	if ((err = snd_m3_mixer(chip)) < 0)
2765 		return err;
2766 
2767 	for (i = 0; i < chip->num_substreams; i++) {
2768 		struct m3_dma *s = &chip->substreams[i];
2769 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2770 			return err;
2771 	}
2772 
2773 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2774 		return err;
2775 
2776 	snd_m3_enable_ints(chip);
2777 	snd_m3_assp_continue(chip);
2778 
2779 	snd_card_set_dev(card, &pci->dev);
2780 
2781 	*chip_ret = chip;
2782 
2783 	return 0;
2784 }
2785 
2786 /*
2787  */
2788 static int __devinit
2789 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2790 {
2791 	static int dev;
2792 	struct snd_card *card;
2793 	struct snd_m3 *chip;
2794 	int err;
2795 
2796 	/* don't pick up modems */
2797 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2798 		return -ENODEV;
2799 
2800 	if (dev >= SNDRV_CARDS)
2801 		return -ENODEV;
2802 	if (!enable[dev]) {
2803 		dev++;
2804 		return -ENOENT;
2805 	}
2806 
2807 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2808 	if (card == NULL)
2809 		return -ENOMEM;
2810 
2811 	switch (pci->device) {
2812 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2813 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2814 		strcpy(card->driver, "Allegro");
2815 		break;
2816 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2817 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2818 		strcpy(card->driver, "Canyon3D-2");
2819 		break;
2820 	default:
2821 		strcpy(card->driver, "Maestro3");
2822 		break;
2823 	}
2824 
2825 	if ((err = snd_m3_create(card, pci,
2826 				 external_amp[dev],
2827 				 amp_gpio[dev],
2828 				 &chip)) < 0) {
2829 		snd_card_free(card);
2830 		return err;
2831 	}
2832 	card->private_data = chip;
2833 
2834 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2835 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2836 		card->shortname, chip->iobase, chip->irq);
2837 
2838 	if ((err = snd_card_register(card)) < 0) {
2839 		snd_card_free(card);
2840 		return err;
2841 	}
2842 
2843 #if 0 /* TODO: not supported yet */
2844 	/* TODO enable midi irq and i/o */
2845 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2846 				  chip->iobase + MPU401_DATA_PORT, 1,
2847 				  chip->irq, 0, &chip->rmidi);
2848 	if (err < 0)
2849 		printk(KERN_WARNING "maestro3: no midi support.\n");
2850 #endif
2851 
2852 	pci_set_drvdata(pci, card);
2853 	dev++;
2854 	return 0;
2855 }
2856 
2857 static void __devexit snd_m3_remove(struct pci_dev *pci)
2858 {
2859 	snd_card_free(pci_get_drvdata(pci));
2860 	pci_set_drvdata(pci, NULL);
2861 }
2862 
2863 static struct pci_driver driver = {
2864 	.name = "Maestro3",
2865 	.id_table = snd_m3_ids,
2866 	.probe = snd_m3_probe,
2867 	.remove = __devexit_p(snd_m3_remove),
2868 #ifdef CONFIG_PM
2869 	.suspend = m3_suspend,
2870 	.resume = m3_resume,
2871 #endif
2872 };
2873 
2874 static int __init alsa_card_m3_init(void)
2875 {
2876 	return pci_register_driver(&driver);
2877 }
2878 
2879 static void __exit alsa_card_m3_exit(void)
2880 {
2881 	pci_unregister_driver(&driver);
2882 }
2883 
2884 module_init(alsa_card_m3_init)
2885 module_exit(alsa_card_m3_exit)
2886