xref: /openbmc/linux/sound/pci/maestro3.c (revision f42b3800)
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 <asm/io.h>
35 #include <linux/delay.h>
36 #include <linux/interrupt.h>
37 #include <linux/init.h>
38 #include <linux/pci.h>
39 #include <linux/dma-mapping.h>
40 #include <linux/slab.h>
41 #include <linux/vmalloc.h>
42 #include <linux/moduleparam.h>
43 #include <linux/firmware.h>
44 #include <sound/core.h>
45 #include <sound/info.h>
46 #include <sound/control.h>
47 #include <sound/pcm.h>
48 #include <sound/mpu401.h>
49 #include <sound/ac97_codec.h>
50 #include <sound/initval.h>
51 #include <asm/byteorder.h>
52 
53 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
54 MODULE_DESCRIPTION("ESS Maestro3 PCI");
55 MODULE_LICENSE("GPL");
56 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
57 		"{ESS,ES1988},"
58 		"{ESS,Allegro PCI},"
59 		"{ESS,Allegro-1 PCI},"
60 	        "{ESS,Canyon3D-2/LE PCI}}");
61 #ifndef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
62 MODULE_FIRMWARE("ess/maestro3_assp_kernel.fw");
63 MODULE_FIRMWARE("ess/maestro3_assp_minisrc.fw");
64 #endif
65 
66 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
67 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
68 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
69 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
70 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
71 
72 module_param_array(index, int, NULL, 0444);
73 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
74 module_param_array(id, charp, NULL, 0444);
75 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
76 module_param_array(enable, bool, NULL, 0444);
77 MODULE_PARM_DESC(enable, "Enable this soundcard.");
78 module_param_array(external_amp, bool, NULL, 0444);
79 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
80 module_param_array(amp_gpio, int, NULL, 0444);
81 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
82 
83 #define MAX_PLAYBACKS	2
84 #define MAX_CAPTURES	1
85 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
86 
87 
88 /*
89  * maestro3 registers
90  */
91 
92 /* Allegro PCI configuration registers */
93 #define PCI_LEGACY_AUDIO_CTRL   0x40
94 #define SOUND_BLASTER_ENABLE    0x00000001
95 #define FM_SYNTHESIS_ENABLE     0x00000002
96 #define GAME_PORT_ENABLE        0x00000004
97 #define MPU401_IO_ENABLE        0x00000008
98 #define MPU401_IRQ_ENABLE       0x00000010
99 #define ALIAS_10BIT_IO          0x00000020
100 #define SB_DMA_MASK             0x000000C0
101 #define SB_DMA_0                0x00000040
102 #define SB_DMA_1                0x00000040
103 #define SB_DMA_R                0x00000080
104 #define SB_DMA_3                0x000000C0
105 #define SB_IRQ_MASK             0x00000700
106 #define SB_IRQ_5                0x00000000
107 #define SB_IRQ_7                0x00000100
108 #define SB_IRQ_9                0x00000200
109 #define SB_IRQ_10               0x00000300
110 #define MIDI_IRQ_MASK           0x00003800
111 #define SERIAL_IRQ_ENABLE       0x00004000
112 #define DISABLE_LEGACY          0x00008000
113 
114 #define PCI_ALLEGRO_CONFIG      0x50
115 #define SB_ADDR_240             0x00000004
116 #define MPU_ADDR_MASK           0x00000018
117 #define MPU_ADDR_330            0x00000000
118 #define MPU_ADDR_300            0x00000008
119 #define MPU_ADDR_320            0x00000010
120 #define MPU_ADDR_340            0x00000018
121 #define USE_PCI_TIMING          0x00000040
122 #define POSTED_WRITE_ENABLE     0x00000080
123 #define DMA_POLICY_MASK         0x00000700
124 #define DMA_DDMA                0x00000000
125 #define DMA_TDMA                0x00000100
126 #define DMA_PCPCI               0x00000200
127 #define DMA_WBDMA16             0x00000400
128 #define DMA_WBDMA4              0x00000500
129 #define DMA_WBDMA2              0x00000600
130 #define DMA_WBDMA1              0x00000700
131 #define DMA_SAFE_GUARD          0x00000800
132 #define HI_PERF_GP_ENABLE       0x00001000
133 #define PIC_SNOOP_MODE_0        0x00002000
134 #define PIC_SNOOP_MODE_1        0x00004000
135 #define SOUNDBLASTER_IRQ_MASK   0x00008000
136 #define RING_IN_ENABLE          0x00010000
137 #define SPDIF_TEST_MODE         0x00020000
138 #define CLK_MULT_MODE_SELECT_2  0x00040000
139 #define EEPROM_WRITE_ENABLE     0x00080000
140 #define CODEC_DIR_IN            0x00100000
141 #define HV_BUTTON_FROM_GD       0x00200000
142 #define REDUCED_DEBOUNCE        0x00400000
143 #define HV_CTRL_ENABLE          0x00800000
144 #define SPDIF_ENABLE            0x01000000
145 #define CLK_DIV_SELECT          0x06000000
146 #define CLK_DIV_BY_48           0x00000000
147 #define CLK_DIV_BY_49           0x02000000
148 #define CLK_DIV_BY_50           0x04000000
149 #define CLK_DIV_RESERVED        0x06000000
150 #define PM_CTRL_ENABLE          0x08000000
151 #define CLK_MULT_MODE_SELECT    0x30000000
152 #define CLK_MULT_MODE_SHIFT     28
153 #define CLK_MULT_MODE_0         0x00000000
154 #define CLK_MULT_MODE_1         0x10000000
155 #define CLK_MULT_MODE_2         0x20000000
156 #define CLK_MULT_MODE_3         0x30000000
157 #define INT_CLK_SELECT          0x40000000
158 #define INT_CLK_MULT_RESET      0x80000000
159 
160 /* M3 */
161 #define INT_CLK_SRC_NOT_PCI     0x00100000
162 #define INT_CLK_MULT_ENABLE     0x80000000
163 
164 #define PCI_ACPI_CONTROL        0x54
165 #define PCI_ACPI_D0             0x00000000
166 #define PCI_ACPI_D1             0xB4F70000
167 #define PCI_ACPI_D2             0xB4F7B4F7
168 
169 #define PCI_USER_CONFIG         0x58
170 #define EXT_PCI_MASTER_ENABLE   0x00000001
171 #define SPDIF_OUT_SELECT        0x00000002
172 #define TEST_PIN_DIR_CTRL       0x00000004
173 #define AC97_CODEC_TEST         0x00000020
174 #define TRI_STATE_BUFFER        0x00000080
175 #define IN_CLK_12MHZ_SELECT     0x00000100
176 #define MULTI_FUNC_DISABLE      0x00000200
177 #define EXT_MASTER_PAIR_SEL     0x00000400
178 #define PCI_MASTER_SUPPORT      0x00000800
179 #define STOP_CLOCK_ENABLE       0x00001000
180 #define EAPD_DRIVE_ENABLE       0x00002000
181 #define REQ_TRI_STATE_ENABLE    0x00004000
182 #define REQ_LOW_ENABLE          0x00008000
183 #define MIDI_1_ENABLE           0x00010000
184 #define MIDI_2_ENABLE           0x00020000
185 #define SB_AUDIO_SYNC           0x00040000
186 #define HV_CTRL_TEST            0x00100000
187 #define SOUNDBLASTER_TEST       0x00400000
188 
189 #define PCI_USER_CONFIG_C       0x5C
190 
191 #define PCI_DDMA_CTRL           0x60
192 #define DDMA_ENABLE             0x00000001
193 
194 
195 /* Allegro registers */
196 #define HOST_INT_CTRL           0x18
197 #define SB_INT_ENABLE           0x0001
198 #define MPU401_INT_ENABLE       0x0002
199 #define ASSP_INT_ENABLE         0x0010
200 #define RING_INT_ENABLE         0x0020
201 #define HV_INT_ENABLE           0x0040
202 #define CLKRUN_GEN_ENABLE       0x0100
203 #define HV_CTRL_TO_PME          0x0400
204 #define SOFTWARE_RESET_ENABLE   0x8000
205 
206 /*
207  * should be using the above defines, probably.
208  */
209 #define REGB_ENABLE_RESET               0x01
210 #define REGB_STOP_CLOCK                 0x10
211 
212 #define HOST_INT_STATUS         0x1A
213 #define SB_INT_PENDING          0x01
214 #define MPU401_INT_PENDING      0x02
215 #define ASSP_INT_PENDING        0x10
216 #define RING_INT_PENDING        0x20
217 #define HV_INT_PENDING          0x40
218 
219 #define HARDWARE_VOL_CTRL       0x1B
220 #define SHADOW_MIX_REG_VOICE    0x1C
221 #define HW_VOL_COUNTER_VOICE    0x1D
222 #define SHADOW_MIX_REG_MASTER   0x1E
223 #define HW_VOL_COUNTER_MASTER   0x1F
224 
225 #define CODEC_COMMAND           0x30
226 #define CODEC_READ_B            0x80
227 
228 #define CODEC_STATUS            0x30
229 #define CODEC_BUSY_B            0x01
230 
231 #define CODEC_DATA              0x32
232 
233 #define RING_BUS_CTRL_A         0x36
234 #define RAC_PME_ENABLE          0x0100
235 #define RAC_SDFS_ENABLE         0x0200
236 #define LAC_PME_ENABLE          0x0400
237 #define LAC_SDFS_ENABLE         0x0800
238 #define SERIAL_AC_LINK_ENABLE   0x1000
239 #define IO_SRAM_ENABLE          0x2000
240 #define IIS_INPUT_ENABLE        0x8000
241 
242 #define RING_BUS_CTRL_B         0x38
243 #define SECOND_CODEC_ID_MASK    0x0003
244 #define SPDIF_FUNC_ENABLE       0x0010
245 #define SECOND_AC_ENABLE        0x0020
246 #define SB_MODULE_INTF_ENABLE   0x0040
247 #define SSPE_ENABLE             0x0040
248 #define M3I_DOCK_ENABLE         0x0080
249 
250 #define SDO_OUT_DEST_CTRL       0x3A
251 #define COMMAND_ADDR_OUT        0x0003
252 #define PCM_LR_OUT_LOCAL        0x0000
253 #define PCM_LR_OUT_REMOTE       0x0004
254 #define PCM_LR_OUT_MUTE         0x0008
255 #define PCM_LR_OUT_BOTH         0x000C
256 #define LINE1_DAC_OUT_LOCAL     0x0000
257 #define LINE1_DAC_OUT_REMOTE    0x0010
258 #define LINE1_DAC_OUT_MUTE      0x0020
259 #define LINE1_DAC_OUT_BOTH      0x0030
260 #define PCM_CLS_OUT_LOCAL       0x0000
261 #define PCM_CLS_OUT_REMOTE      0x0040
262 #define PCM_CLS_OUT_MUTE        0x0080
263 #define PCM_CLS_OUT_BOTH        0x00C0
264 #define PCM_RLF_OUT_LOCAL       0x0000
265 #define PCM_RLF_OUT_REMOTE      0x0100
266 #define PCM_RLF_OUT_MUTE        0x0200
267 #define PCM_RLF_OUT_BOTH        0x0300
268 #define LINE2_DAC_OUT_LOCAL     0x0000
269 #define LINE2_DAC_OUT_REMOTE    0x0400
270 #define LINE2_DAC_OUT_MUTE      0x0800
271 #define LINE2_DAC_OUT_BOTH      0x0C00
272 #define HANDSET_OUT_LOCAL       0x0000
273 #define HANDSET_OUT_REMOTE      0x1000
274 #define HANDSET_OUT_MUTE        0x2000
275 #define HANDSET_OUT_BOTH        0x3000
276 #define IO_CTRL_OUT_LOCAL       0x0000
277 #define IO_CTRL_OUT_REMOTE      0x4000
278 #define IO_CTRL_OUT_MUTE        0x8000
279 #define IO_CTRL_OUT_BOTH        0xC000
280 
281 #define SDO_IN_DEST_CTRL        0x3C
282 #define STATUS_ADDR_IN          0x0003
283 #define PCM_LR_IN_LOCAL         0x0000
284 #define PCM_LR_IN_REMOTE        0x0004
285 #define PCM_LR_RESERVED         0x0008
286 #define PCM_LR_IN_BOTH          0x000C
287 #define LINE1_ADC_IN_LOCAL      0x0000
288 #define LINE1_ADC_IN_REMOTE     0x0010
289 #define LINE1_ADC_IN_MUTE       0x0020
290 #define MIC_ADC_IN_LOCAL        0x0000
291 #define MIC_ADC_IN_REMOTE       0x0040
292 #define MIC_ADC_IN_MUTE         0x0080
293 #define LINE2_DAC_IN_LOCAL      0x0000
294 #define LINE2_DAC_IN_REMOTE     0x0400
295 #define LINE2_DAC_IN_MUTE       0x0800
296 #define HANDSET_IN_LOCAL        0x0000
297 #define HANDSET_IN_REMOTE       0x1000
298 #define HANDSET_IN_MUTE         0x2000
299 #define IO_STATUS_IN_LOCAL      0x0000
300 #define IO_STATUS_IN_REMOTE     0x4000
301 
302 #define SPDIF_IN_CTRL           0x3E
303 #define SPDIF_IN_ENABLE         0x0001
304 
305 #define GPIO_DATA               0x60
306 #define GPIO_DATA_MASK          0x0FFF
307 #define GPIO_HV_STATUS          0x3000
308 #define GPIO_PME_STATUS         0x4000
309 
310 #define GPIO_MASK               0x64
311 #define GPIO_DIRECTION          0x68
312 #define GPO_PRIMARY_AC97        0x0001
313 #define GPI_LINEOUT_SENSE       0x0004
314 #define GPO_SECONDARY_AC97      0x0008
315 #define GPI_VOL_DOWN            0x0010
316 #define GPI_VOL_UP              0x0020
317 #define GPI_IIS_CLK             0x0040
318 #define GPI_IIS_LRCLK           0x0080
319 #define GPI_IIS_DATA            0x0100
320 #define GPI_DOCKING_STATUS      0x0100
321 #define GPI_HEADPHONE_SENSE     0x0200
322 #define GPO_EXT_AMP_SHUTDOWN    0x1000
323 
324 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
325 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
326 
327 /* M3 */
328 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
329 
330 #define ASSP_INDEX_PORT         0x80
331 #define ASSP_MEMORY_PORT        0x82
332 #define ASSP_DATA_PORT          0x84
333 
334 #define MPU401_DATA_PORT        0x98
335 #define MPU401_STATUS_PORT      0x99
336 
337 #define CLK_MULT_DATA_PORT      0x9C
338 
339 #define ASSP_CONTROL_A          0xA2
340 #define ASSP_0_WS_ENABLE        0x01
341 #define ASSP_CTRL_A_RESERVED1   0x02
342 #define ASSP_CTRL_A_RESERVED2   0x04
343 #define ASSP_CLK_49MHZ_SELECT   0x08
344 #define FAST_PLU_ENABLE         0x10
345 #define ASSP_CTRL_A_RESERVED3   0x20
346 #define DSP_CLK_36MHZ_SELECT    0x40
347 
348 #define ASSP_CONTROL_B          0xA4
349 #define RESET_ASSP              0x00
350 #define RUN_ASSP                0x01
351 #define ENABLE_ASSP_CLOCK       0x00
352 #define STOP_ASSP_CLOCK         0x10
353 #define RESET_TOGGLE            0x40
354 
355 #define ASSP_CONTROL_C          0xA6
356 #define ASSP_HOST_INT_ENABLE    0x01
357 #define FM_ADDR_REMAP_DISABLE   0x02
358 #define HOST_WRITE_PORT_ENABLE  0x08
359 
360 #define ASSP_HOST_INT_STATUS    0xAC
361 #define DSP2HOST_REQ_PIORECORD  0x01
362 #define DSP2HOST_REQ_I2SRATE    0x02
363 #define DSP2HOST_REQ_TIMER      0x04
364 
365 /* AC97 registers */
366 /* XXX fix this crap up */
367 /*#define AC97_RESET              0x00*/
368 
369 #define AC97_VOL_MUTE_B         0x8000
370 #define AC97_VOL_M              0x1F
371 #define AC97_LEFT_VOL_S         8
372 
373 #define AC97_MASTER_VOL         0x02
374 #define AC97_LINE_LEVEL_VOL     0x04
375 #define AC97_MASTER_MONO_VOL    0x06
376 #define AC97_PC_BEEP_VOL        0x0A
377 #define AC97_PC_BEEP_VOL_M      0x0F
378 #define AC97_SROUND_MASTER_VOL  0x38
379 #define AC97_PC_BEEP_VOL_S      1
380 
381 /*#define AC97_PHONE_VOL          0x0C
382 #define AC97_MIC_VOL            0x0E*/
383 #define AC97_MIC_20DB_ENABLE    0x40
384 
385 /*#define AC97_LINEIN_VOL         0x10
386 #define AC97_CD_VOL             0x12
387 #define AC97_VIDEO_VOL          0x14
388 #define AC97_AUX_VOL            0x16*/
389 #define AC97_PCM_OUT_VOL        0x18
390 /*#define AC97_RECORD_SELECT      0x1A*/
391 #define AC97_RECORD_MIC         0x00
392 #define AC97_RECORD_CD          0x01
393 #define AC97_RECORD_VIDEO       0x02
394 #define AC97_RECORD_AUX         0x03
395 #define AC97_RECORD_MONO_MUX    0x02
396 #define AC97_RECORD_DIGITAL     0x03
397 #define AC97_RECORD_LINE        0x04
398 #define AC97_RECORD_STEREO      0x05
399 #define AC97_RECORD_MONO        0x06
400 #define AC97_RECORD_PHONE       0x07
401 
402 /*#define AC97_RECORD_GAIN        0x1C*/
403 #define AC97_RECORD_VOL_M       0x0F
404 
405 /*#define AC97_GENERAL_PURPOSE    0x20*/
406 #define AC97_POWER_DOWN_CTRL    0x26
407 #define AC97_ADC_READY          0x0001
408 #define AC97_DAC_READY          0x0002
409 #define AC97_ANALOG_READY       0x0004
410 #define AC97_VREF_ON            0x0008
411 #define AC97_PR0                0x0100
412 #define AC97_PR1                0x0200
413 #define AC97_PR2                0x0400
414 #define AC97_PR3                0x0800
415 #define AC97_PR4                0x1000
416 
417 #define AC97_RESERVED1          0x28
418 
419 #define AC97_VENDOR_TEST        0x5A
420 
421 #define AC97_CLOCK_DELAY        0x5C
422 #define AC97_LINEOUT_MUX_SEL    0x0001
423 #define AC97_MONO_MUX_SEL       0x0002
424 #define AC97_CLOCK_DELAY_SEL    0x1F
425 #define AC97_DAC_CDS_SHIFT      6
426 #define AC97_ADC_CDS_SHIFT      11
427 
428 #define AC97_MULTI_CHANNEL_SEL  0x74
429 
430 /*#define AC97_VENDOR_ID1         0x7C
431 #define AC97_VENDOR_ID2         0x7E*/
432 
433 /*
434  * ASSP control regs
435  */
436 #define DSP_PORT_TIMER_COUNT    0x06
437 
438 #define DSP_PORT_MEMORY_INDEX   0x80
439 
440 #define DSP_PORT_MEMORY_TYPE    0x82
441 #define MEMTYPE_INTERNAL_CODE   0x0002
442 #define MEMTYPE_INTERNAL_DATA   0x0003
443 #define MEMTYPE_MASK            0x0003
444 
445 #define DSP_PORT_MEMORY_DATA    0x84
446 
447 #define DSP_PORT_CONTROL_REG_A  0xA2
448 #define DSP_PORT_CONTROL_REG_B  0xA4
449 #define DSP_PORT_CONTROL_REG_C  0xA6
450 
451 #define REV_A_CODE_MEMORY_BEGIN         0x0000
452 #define REV_A_CODE_MEMORY_END           0x0FFF
453 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
454 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
455 
456 #define REV_B_CODE_MEMORY_BEGIN         0x0000
457 #define REV_B_CODE_MEMORY_END           0x0BFF
458 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
459 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
460 
461 #define REV_A_DATA_MEMORY_BEGIN         0x1000
462 #define REV_A_DATA_MEMORY_END           0x2FFF
463 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
464 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
465 
466 #define REV_B_DATA_MEMORY_BEGIN         0x1000
467 #define REV_B_DATA_MEMORY_END           0x2BFF
468 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
469 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
470 
471 
472 #define NUM_UNITS_KERNEL_CODE          16
473 #define NUM_UNITS_KERNEL_DATA           2
474 
475 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
476 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
477 
478 /*
479  * Kernel data layout
480  */
481 
482 #define DP_SHIFT_COUNT                  7
483 
484 #define KDATA_BASE_ADDR                 0x1000
485 #define KDATA_BASE_ADDR2                0x1080
486 
487 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
488 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
489 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
490 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
491 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
492 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
493 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
494 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
495 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
496 
497 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
498 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
499 
500 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
501 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
502 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
503 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
504 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
505 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
506 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
507 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
508 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
509 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
510 
511 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
512 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
513 
514 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
515 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
516 
517 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
518 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
519 
520 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
521 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
522 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
523 
524 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
525 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
526 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
527 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
528 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
529 
530 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
531 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
532 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
533 
534 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
535 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
536 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
537 
538 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
539 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
540 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
541 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
542 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
543 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
544 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
545 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
546 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
547 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
548 
549 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
550 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
551 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
552 
553 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
554 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
555 
556 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
557 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
558 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
559 
560 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
561 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
562 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
563 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
564 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
565 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
566 
567 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
568 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
569 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
570 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
571 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
572 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
573 
574 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
575 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
576 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
577 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
578 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
579 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
580 
581 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
582 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
583 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
584 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
585 
586 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
587 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
588 
589 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
590 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
591 
592 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
593 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
594 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
595 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
596 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
597 
598 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
599 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
600 
601 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
602 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
603 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
604 
605 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
606 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
607 
608 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
609 
610 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
611 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
612 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
613 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
614 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
615 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
616 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
617 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
618 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
619 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
620 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
621 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
622 
623 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
624 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
625 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
626 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
627 
628 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
629 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
630 
631 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
632 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
633 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
634 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
635 
636 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
637 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
638 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
639 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
640 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
641 
642 /*
643  * second 'segment' (?) reserved for mixer
644  * buffers..
645  */
646 
647 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
648 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
649 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
650 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
651 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
652 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
653 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
654 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
655 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
656 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
657 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
658 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
659 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
660 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
661 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
662 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
663 
664 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
665 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
666 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
667 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
668 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
669 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
670 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
671 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
672 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
673 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
674 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
675 
676 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
677 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
678 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
679 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
680 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
681 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
682 
683 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
684 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
685 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
686 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
687 
688 /*
689  * client data area offsets
690  */
691 #define CDATA_INSTANCE_READY            0x00
692 
693 #define CDATA_HOST_SRC_ADDRL            0x01
694 #define CDATA_HOST_SRC_ADDRH            0x02
695 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
696 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
697 #define CDATA_HOST_SRC_CURRENTL         0x05
698 #define CDATA_HOST_SRC_CURRENTH         0x06
699 
700 #define CDATA_IN_BUF_CONNECT            0x07
701 #define CDATA_OUT_BUF_CONNECT           0x08
702 
703 #define CDATA_IN_BUF_BEGIN              0x09
704 #define CDATA_IN_BUF_END_PLUS_1         0x0A
705 #define CDATA_IN_BUF_HEAD               0x0B
706 #define CDATA_IN_BUF_TAIL               0x0C
707 #define CDATA_OUT_BUF_BEGIN             0x0D
708 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
709 #define CDATA_OUT_BUF_HEAD              0x0F
710 #define CDATA_OUT_BUF_TAIL              0x10
711 
712 #define CDATA_DMA_CONTROL               0x11
713 #define CDATA_RESERVED                  0x12
714 
715 #define CDATA_FREQUENCY                 0x13
716 #define CDATA_LEFT_VOLUME               0x14
717 #define CDATA_RIGHT_VOLUME              0x15
718 #define CDATA_LEFT_SUR_VOL              0x16
719 #define CDATA_RIGHT_SUR_VOL             0x17
720 
721 #define CDATA_HEADER_LEN                0x18
722 
723 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
724 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
725 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
726 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
727 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
728 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
729 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
730 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
731 
732 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
733 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
734 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
735 #define MINISRC_BIQUAD_STAGE    2
736 #define MINISRC_COEF_LOC          0x175
737 
738 #define DMACONTROL_BLOCK_MASK           0x000F
739 #define  DMAC_BLOCK0_SELECTOR           0x0000
740 #define  DMAC_BLOCK1_SELECTOR           0x0001
741 #define  DMAC_BLOCK2_SELECTOR           0x0002
742 #define  DMAC_BLOCK3_SELECTOR           0x0003
743 #define  DMAC_BLOCK4_SELECTOR           0x0004
744 #define  DMAC_BLOCK5_SELECTOR           0x0005
745 #define  DMAC_BLOCK6_SELECTOR           0x0006
746 #define  DMAC_BLOCK7_SELECTOR           0x0007
747 #define  DMAC_BLOCK8_SELECTOR           0x0008
748 #define  DMAC_BLOCK9_SELECTOR           0x0009
749 #define  DMAC_BLOCKA_SELECTOR           0x000A
750 #define  DMAC_BLOCKB_SELECTOR           0x000B
751 #define  DMAC_BLOCKC_SELECTOR           0x000C
752 #define  DMAC_BLOCKD_SELECTOR           0x000D
753 #define  DMAC_BLOCKE_SELECTOR           0x000E
754 #define  DMAC_BLOCKF_SELECTOR           0x000F
755 #define DMACONTROL_PAGE_MASK            0x00F0
756 #define  DMAC_PAGE0_SELECTOR            0x0030
757 #define  DMAC_PAGE1_SELECTOR            0x0020
758 #define  DMAC_PAGE2_SELECTOR            0x0010
759 #define  DMAC_PAGE3_SELECTOR            0x0000
760 #define DMACONTROL_AUTOREPEAT           0x1000
761 #define DMACONTROL_STOPPED              0x2000
762 #define DMACONTROL_DIRECTION            0x0100
763 
764 /*
765  * an arbitrary volume we set the internal
766  * volume settings to so that the ac97 volume
767  * range is a little less insane.  0x7fff is
768  * max.
769  */
770 #define ARB_VOLUME ( 0x6800 )
771 
772 /*
773  */
774 
775 struct m3_list {
776 	int curlen;
777 	int mem_addr;
778 	int max;
779 };
780 
781 struct m3_dma {
782 
783 	int number;
784 	struct snd_pcm_substream *substream;
785 
786 	struct assp_instance {
787 		unsigned short code, data;
788 	} inst;
789 
790 	int running;
791 	int opened;
792 
793 	unsigned long buffer_addr;
794 	int dma_size;
795 	int period_size;
796 	unsigned int hwptr;
797 	int count;
798 
799 	int index[3];
800 	struct m3_list *index_list[3];
801 
802         int in_lists;
803 
804 	struct list_head list;
805 
806 };
807 
808 struct snd_m3 {
809 
810 	struct snd_card *card;
811 
812 	unsigned long iobase;
813 
814 	int irq;
815 	unsigned int allegro_flag : 1;
816 
817 	struct snd_ac97 *ac97;
818 
819 	struct snd_pcm *pcm;
820 
821 	struct pci_dev *pci;
822 
823 	int dacs_active;
824 	int timer_users;
825 
826 	struct m3_list  msrc_list;
827 	struct m3_list  mixer_list;
828 	struct m3_list  adc1_list;
829 	struct m3_list  dma_list;
830 
831 	/* for storing reset state..*/
832 	u8 reset_state;
833 
834 	int external_amp;
835 	int amp_gpio;	/* gpio pin #  for external amp, -1 = default */
836 	unsigned int hv_config;		/* hardware-volume config bits */
837 	unsigned irda_workaround :1;	/* avoid to touch 0x10 on GPIO_DIRECTION
838 					   (e.g. for IrDA on Dell Inspirons) */
839 	unsigned is_omnibook :1;	/* Do HP OmniBook GPIO magic? */
840 
841 	/* midi */
842 	struct snd_rawmidi *rmidi;
843 
844 	/* pcm streams */
845 	int num_substreams;
846 	struct m3_dma *substreams;
847 
848 	spinlock_t reg_lock;
849 	spinlock_t ac97_lock;
850 
851 	struct snd_kcontrol *master_switch;
852 	struct snd_kcontrol *master_volume;
853 	struct tasklet_struct hwvol_tq;
854 
855 #ifdef CONFIG_PM
856 	u16 *suspend_mem;
857 #endif
858 
859 	const struct firmware *assp_kernel_image;
860 	const struct firmware *assp_minisrc_image;
861 };
862 
863 /*
864  * pci ids
865  */
866 static struct pci_device_id snd_m3_ids[] = {
867 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
868 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
869 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
870 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
871 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
872 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
873 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
874 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
875 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
876 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
877 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
878 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
879 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
880 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
881 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
882 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
883 	{0,},
884 };
885 
886 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
887 
888 static struct snd_pci_quirk m3_amp_quirk_list[] __devinitdata = {
889 	SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
890 	SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
891 	SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),
892 	SND_PCI_QUIRK(0x1509, 0x1740, "LEGEND ZhaoYang 3100CF", 0x03),
893 	{ } /* END */
894 };
895 
896 static struct snd_pci_quirk m3_irda_quirk_list[] __devinitdata = {
897 	SND_PCI_QUIRK(0x1028, 0x00b0, "Dell Inspiron 4000", 1),
898 	SND_PCI_QUIRK(0x1028, 0x00a4, "Dell Inspiron 8000", 1),
899 	SND_PCI_QUIRK(0x1028, 0x00e6, "Dell Inspiron 8100", 1),
900 	{ } /* END */
901 };
902 
903 /* hardware volume quirks */
904 static struct snd_pci_quirk m3_hv_quirk_list[] __devinitdata = {
905 	/* Allegro chips */
906 	SND_PCI_QUIRK(0x0E11, 0x002E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
907 	SND_PCI_QUIRK(0x0E11, 0x0094, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
908 	SND_PCI_QUIRK(0x0E11, 0xB112, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
909 	SND_PCI_QUIRK(0x0E11, 0xB114, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
910 	SND_PCI_QUIRK(0x103C, 0x0012, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
911 	SND_PCI_QUIRK(0x103C, 0x0018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
912 	SND_PCI_QUIRK(0x103C, 0x001C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
913 	SND_PCI_QUIRK(0x103C, 0x001D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
914 	SND_PCI_QUIRK(0x103C, 0x001E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
915 	SND_PCI_QUIRK(0x107B, 0x3350, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
916 	SND_PCI_QUIRK(0x10F7, 0x8338, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
917 	SND_PCI_QUIRK(0x10F7, 0x833C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
918 	SND_PCI_QUIRK(0x10F7, 0x833D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
919 	SND_PCI_QUIRK(0x10F7, 0x833E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
920 	SND_PCI_QUIRK(0x10F7, 0x833F, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
921 	SND_PCI_QUIRK(0x13BD, 0x1018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
922 	SND_PCI_QUIRK(0x13BD, 0x1019, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
923 	SND_PCI_QUIRK(0x13BD, 0x101A, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
924 	SND_PCI_QUIRK(0x14FF, 0x0F03, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
925 	SND_PCI_QUIRK(0x14FF, 0x0F04, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
926 	SND_PCI_QUIRK(0x14FF, 0x0F05, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
927 	SND_PCI_QUIRK(0x156D, 0xB400, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
928 	SND_PCI_QUIRK(0x156D, 0xB795, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
929 	SND_PCI_QUIRK(0x156D, 0xB797, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
930 	SND_PCI_QUIRK(0x156D, 0xC700, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
931 	SND_PCI_QUIRK(0x1033, 0x80F1, NULL,
932 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
933 	SND_PCI_QUIRK(0x103C, 0x001A, NULL, /* HP OmniBook 6100 */
934 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
935 	SND_PCI_QUIRK(0x107B, 0x340A, NULL,
936 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
937 	SND_PCI_QUIRK(0x107B, 0x3450, NULL,
938 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
939 	SND_PCI_QUIRK(0x109F, 0x3134, NULL,
940 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
941 	SND_PCI_QUIRK(0x109F, 0x3161, NULL,
942 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
943 	SND_PCI_QUIRK(0x144D, 0x3280, NULL,
944 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
945 	SND_PCI_QUIRK(0x144D, 0x3281, NULL,
946 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
947 	SND_PCI_QUIRK(0x144D, 0xC002, NULL,
948 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
949 	SND_PCI_QUIRK(0x144D, 0xC003, NULL,
950 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
951 	SND_PCI_QUIRK(0x1509, 0x1740, NULL,
952 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
953 	SND_PCI_QUIRK(0x1610, 0x0010, NULL,
954 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
955 	SND_PCI_QUIRK(0x1042, 0x1042, NULL, HV_CTRL_ENABLE),
956 	SND_PCI_QUIRK(0x107B, 0x9500, NULL, HV_CTRL_ENABLE),
957 	SND_PCI_QUIRK(0x14FF, 0x0F06, NULL, HV_CTRL_ENABLE),
958 	SND_PCI_QUIRK(0x1558, 0x8586, NULL, HV_CTRL_ENABLE),
959 	SND_PCI_QUIRK(0x161F, 0x2011, NULL, HV_CTRL_ENABLE),
960 	/* Maestro3 chips */
961 	SND_PCI_QUIRK(0x103C, 0x000E, NULL, HV_CTRL_ENABLE),
962 	SND_PCI_QUIRK(0x103C, 0x0010, NULL, HV_CTRL_ENABLE),
963 	SND_PCI_QUIRK(0x103C, 0x0011, NULL, HV_CTRL_ENABLE),
964 	SND_PCI_QUIRK(0x103C, 0x001B, NULL, HV_CTRL_ENABLE),
965 	SND_PCI_QUIRK(0x104D, 0x80A6, NULL, HV_CTRL_ENABLE),
966 	SND_PCI_QUIRK(0x104D, 0x80AA, NULL, HV_CTRL_ENABLE),
967 	SND_PCI_QUIRK(0x107B, 0x5300, NULL, HV_CTRL_ENABLE),
968 	SND_PCI_QUIRK(0x110A, 0x1998, NULL, HV_CTRL_ENABLE),
969 	SND_PCI_QUIRK(0x13BD, 0x1015, NULL, HV_CTRL_ENABLE),
970 	SND_PCI_QUIRK(0x13BD, 0x101C, NULL, HV_CTRL_ENABLE),
971 	SND_PCI_QUIRK(0x13BD, 0x1802, NULL, HV_CTRL_ENABLE),
972 	SND_PCI_QUIRK(0x1599, 0x0715, NULL, HV_CTRL_ENABLE),
973 	SND_PCI_QUIRK(0x5643, 0x5643, NULL, HV_CTRL_ENABLE),
974 	SND_PCI_QUIRK(0x144D, 0x3260, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
975 	SND_PCI_QUIRK(0x144D, 0x3261, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
976 	SND_PCI_QUIRK(0x144D, 0xC000, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
977 	SND_PCI_QUIRK(0x144D, 0xC001, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
978 	{ } /* END */
979 };
980 
981 /* HP Omnibook quirks */
982 static struct snd_pci_quirk m3_omnibook_quirk_list[] __devinitdata = {
983 	SND_PCI_QUIRK_ID(0x103c, 0x0010), /* HP OmniBook 6000 */
984 	SND_PCI_QUIRK_ID(0x103c, 0x0011), /* HP OmniBook 500 */
985 	{ } /* END */
986 };
987 
988 /*
989  * lowlevel functions
990  */
991 
992 static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
993 {
994 	outw(value, chip->iobase + reg);
995 }
996 
997 static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
998 {
999 	return inw(chip->iobase + reg);
1000 }
1001 
1002 static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
1003 {
1004 	outb(value, chip->iobase + reg);
1005 }
1006 
1007 static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
1008 {
1009 	return inb(chip->iobase + reg);
1010 }
1011 
1012 /*
1013  * access 16bit words to the code or data regions of the dsp's memory.
1014  * index addresses 16bit words.
1015  */
1016 static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
1017 {
1018 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1019 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1020 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1021 }
1022 
1023 static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
1024 {
1025 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1026 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1027 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1028 }
1029 
1030 static void snd_m3_assp_halt(struct snd_m3 *chip)
1031 {
1032 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1033 	msleep(10);
1034 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1035 }
1036 
1037 static void snd_m3_assp_continue(struct snd_m3 *chip)
1038 {
1039 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1040 }
1041 
1042 
1043 /*
1044  * This makes me sad. the maestro3 has lists
1045  * internally that must be packed.. 0 terminates,
1046  * apparently, or maybe all unused entries have
1047  * to be 0, the lists have static lengths set
1048  * by the binary code images.
1049  */
1050 
1051 static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
1052 {
1053 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1054 			  list->mem_addr + list->curlen,
1055 			  val);
1056 	return list->curlen++;
1057 }
1058 
1059 static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
1060 {
1061 	u16  val;
1062 	int lastindex = list->curlen - 1;
1063 
1064 	if (index != lastindex) {
1065 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1066 				       list->mem_addr + lastindex);
1067 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1068 				  list->mem_addr + index,
1069 				  val);
1070 	}
1071 
1072 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1073 			  list->mem_addr + lastindex,
1074 			  0);
1075 
1076 	list->curlen--;
1077 }
1078 
1079 static void snd_m3_inc_timer_users(struct snd_m3 *chip)
1080 {
1081 	chip->timer_users++;
1082 	if (chip->timer_users != 1)
1083 		return;
1084 
1085 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1086 			  KDATA_TIMER_COUNT_RELOAD,
1087 			  240);
1088 
1089 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1090 			  KDATA_TIMER_COUNT_CURRENT,
1091 			  240);
1092 
1093 	snd_m3_outw(chip,
1094 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1095 		    HOST_INT_CTRL);
1096 }
1097 
1098 static void snd_m3_dec_timer_users(struct snd_m3 *chip)
1099 {
1100 	chip->timer_users--;
1101 	if (chip->timer_users > 0)
1102 		return;
1103 
1104 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1105 			  KDATA_TIMER_COUNT_RELOAD,
1106 			  0);
1107 
1108 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1109 			  KDATA_TIMER_COUNT_CURRENT,
1110 			  0);
1111 
1112 	snd_m3_outw(chip,
1113 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1114 		    HOST_INT_CTRL);
1115 }
1116 
1117 /*
1118  * start/stop
1119  */
1120 
1121 /* spinlock held! */
1122 static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
1123 			    struct snd_pcm_substream *subs)
1124 {
1125 	if (! s || ! subs)
1126 		return -EINVAL;
1127 
1128 	snd_m3_inc_timer_users(chip);
1129 	switch (subs->stream) {
1130 	case SNDRV_PCM_STREAM_PLAYBACK:
1131 		chip->dacs_active++;
1132 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1133 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1134 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1135 				  KDATA_MIXER_TASK_NUMBER,
1136 				  chip->dacs_active);
1137 		break;
1138 	case SNDRV_PCM_STREAM_CAPTURE:
1139 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1140 				  KDATA_ADC1_REQUEST, 1);
1141 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1142 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1143 		break;
1144 	}
1145 	return 0;
1146 }
1147 
1148 /* spinlock held! */
1149 static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
1150 			   struct snd_pcm_substream *subs)
1151 {
1152 	if (! s || ! subs)
1153 		return -EINVAL;
1154 
1155 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1156 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1157 	snd_m3_dec_timer_users(chip);
1158 	switch (subs->stream) {
1159 	case SNDRV_PCM_STREAM_PLAYBACK:
1160 		chip->dacs_active--;
1161 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1162 				  KDATA_MIXER_TASK_NUMBER,
1163 				  chip->dacs_active);
1164 		break;
1165 	case SNDRV_PCM_STREAM_CAPTURE:
1166 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1167 				  KDATA_ADC1_REQUEST, 0);
1168 		break;
1169 	}
1170 	return 0;
1171 }
1172 
1173 static int
1174 snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
1175 {
1176 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1177 	struct m3_dma *s = subs->runtime->private_data;
1178 	int err = -EINVAL;
1179 
1180 	snd_assert(s != NULL, return -ENXIO);
1181 
1182 	spin_lock(&chip->reg_lock);
1183 	switch (cmd) {
1184 	case SNDRV_PCM_TRIGGER_START:
1185 	case SNDRV_PCM_TRIGGER_RESUME:
1186 		if (s->running)
1187 			err = -EBUSY;
1188 		else {
1189 			s->running = 1;
1190 			err = snd_m3_pcm_start(chip, s, subs);
1191 		}
1192 		break;
1193 	case SNDRV_PCM_TRIGGER_STOP:
1194 	case SNDRV_PCM_TRIGGER_SUSPEND:
1195 		if (! s->running)
1196 			err = 0; /* should return error? */
1197 		else {
1198 			s->running = 0;
1199 			err = snd_m3_pcm_stop(chip, s, subs);
1200 		}
1201 		break;
1202 	}
1203 	spin_unlock(&chip->reg_lock);
1204 	return err;
1205 }
1206 
1207 /*
1208  * setup
1209  */
1210 static void
1211 snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1212 {
1213 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1214 	struct snd_pcm_runtime *runtime = subs->runtime;
1215 
1216 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1217 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1218 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1219 	} else {
1220 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1221 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1222 	}
1223 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1224 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1225 
1226 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1227 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1228 	s->hwptr = 0;
1229 	s->count = 0;
1230 
1231 #define LO(x) ((x) & 0xffff)
1232 #define HI(x) LO((x) >> 16)
1233 
1234 	/* host dma buffer pointers */
1235 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1236 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1237 			  LO(s->buffer_addr));
1238 
1239 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1240 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1241 			  HI(s->buffer_addr));
1242 
1243 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1244 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1245 			  LO(s->buffer_addr + s->dma_size));
1246 
1247 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1248 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1249 			  HI(s->buffer_addr + s->dma_size));
1250 
1251 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1252 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1253 			  LO(s->buffer_addr));
1254 
1255 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1256 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1257 			  HI(s->buffer_addr));
1258 #undef LO
1259 #undef HI
1260 
1261 	/* dsp buffers */
1262 
1263 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1264 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1265 			  dsp_in_buffer);
1266 
1267 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1268 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1269 			  dsp_in_buffer + (dsp_in_size / 2));
1270 
1271 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1272 			  s->inst.data + CDATA_IN_BUF_HEAD,
1273 			  dsp_in_buffer);
1274 
1275 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1276 			  s->inst.data + CDATA_IN_BUF_TAIL,
1277 			  dsp_in_buffer);
1278 
1279 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1280 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1281 			  dsp_out_buffer);
1282 
1283 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1284 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1285 			  dsp_out_buffer + (dsp_out_size / 2));
1286 
1287 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1288 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1289 			  dsp_out_buffer);
1290 
1291 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1292 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1293 			  dsp_out_buffer);
1294 }
1295 
1296 static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
1297 			      struct snd_pcm_runtime *runtime)
1298 {
1299 	u32 freq;
1300 
1301 	/*
1302 	 * put us in the lists if we're not already there
1303 	 */
1304 	if (! s->in_lists) {
1305 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1306 					      s->inst.data >> DP_SHIFT_COUNT);
1307 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1308 					      s->inst.data >> DP_SHIFT_COUNT);
1309 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1310 					      s->inst.data >> DP_SHIFT_COUNT);
1311 		s->in_lists = 1;
1312 	}
1313 
1314 	/* write to 'mono' word */
1315 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1316 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1317 			  runtime->channels == 2 ? 0 : 1);
1318 	/* write to '8bit' word */
1319 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1320 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1321 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1322 
1323 	/* set up dac/adc rate */
1324 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1325 	if (freq)
1326 		freq--;
1327 
1328 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1329 			  s->inst.data + CDATA_FREQUENCY,
1330 			  freq);
1331 }
1332 
1333 
1334 static const struct play_vals {
1335 	u16 addr, val;
1336 } pv[] = {
1337 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1338 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1339 	{SRC3_DIRECTION_OFFSET, 0} ,
1340 	/* +1, +2 are stereo/16 bit */
1341 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1342 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1343 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1344 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1345 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1346 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1347 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1348 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1349 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1350 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1351 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1352 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1353 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1354 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1355 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1356 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1357 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1358 };
1359 
1360 
1361 /* the mode passed should be already shifted and masked */
1362 static void
1363 snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
1364 		      struct snd_pcm_substream *subs)
1365 {
1366 	unsigned int i;
1367 
1368 	/*
1369 	 * some per client initializers
1370 	 */
1371 
1372 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1373 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1374 			  s->inst.data + 40 + 8);
1375 
1376 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1377 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1378 			  s->inst.code + MINISRC_COEF_LOC);
1379 
1380 	/* enable or disable low pass filter? */
1381 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1382 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1383 			  subs->runtime->rate > 45000 ? 0xff : 0);
1384 
1385 	/* tell it which way dma is going? */
1386 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1387 			  s->inst.data + CDATA_DMA_CONTROL,
1388 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1389 
1390 	/*
1391 	 * set an armload of static initializers
1392 	 */
1393 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1394 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1395 				  s->inst.data + pv[i].addr, pv[i].val);
1396 }
1397 
1398 /*
1399  *    Native record driver
1400  */
1401 static const struct rec_vals {
1402 	u16 addr, val;
1403 } rv[] = {
1404 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1405 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1406 	{SRC3_DIRECTION_OFFSET, 1} ,
1407 	/* +1, +2 are stereo/16 bit */
1408 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1409 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1410 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1411 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1412 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1413 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1414 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1415 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1416 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1417 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1418 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1419 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1420 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1421 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1422 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1423 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1424 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1425 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1426 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1427 };
1428 
1429 static void
1430 snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1431 {
1432 	unsigned int i;
1433 
1434 	/*
1435 	 * some per client initializers
1436 	 */
1437 
1438 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1439 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1440 			  s->inst.data + 40 + 8);
1441 
1442 	/* tell it which way dma is going? */
1443 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1444 			  s->inst.data + CDATA_DMA_CONTROL,
1445 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1446 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1447 
1448 	/*
1449 	 * set an armload of static initializers
1450 	 */
1451 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1452 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1453 				  s->inst.data + rv[i].addr, rv[i].val);
1454 }
1455 
1456 static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
1457 				struct snd_pcm_hw_params *hw_params)
1458 {
1459 	struct m3_dma *s = substream->runtime->private_data;
1460 	int err;
1461 
1462 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1463 		return err;
1464 	/* set buffer address */
1465 	s->buffer_addr = substream->runtime->dma_addr;
1466 	if (s->buffer_addr & 0x3) {
1467 		snd_printk(KERN_ERR "oh my, not aligned\n");
1468 		s->buffer_addr = s->buffer_addr & ~0x3;
1469 	}
1470 	return 0;
1471 }
1472 
1473 static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
1474 {
1475 	struct m3_dma *s;
1476 
1477 	if (substream->runtime->private_data == NULL)
1478 		return 0;
1479 	s = substream->runtime->private_data;
1480 	snd_pcm_lib_free_pages(substream);
1481 	s->buffer_addr = 0;
1482 	return 0;
1483 }
1484 
1485 static int
1486 snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
1487 {
1488 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1489 	struct snd_pcm_runtime *runtime = subs->runtime;
1490 	struct m3_dma *s = runtime->private_data;
1491 
1492 	snd_assert(s != NULL, return -ENXIO);
1493 
1494 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1495 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1496 		return -EINVAL;
1497 	if (runtime->rate > 48000 ||
1498 	    runtime->rate < 8000)
1499 		return -EINVAL;
1500 
1501 	spin_lock_irq(&chip->reg_lock);
1502 
1503 	snd_m3_pcm_setup1(chip, s, subs);
1504 
1505 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1506 		snd_m3_playback_setup(chip, s, subs);
1507 	else
1508 		snd_m3_capture_setup(chip, s, subs);
1509 
1510 	snd_m3_pcm_setup2(chip, s, runtime);
1511 
1512 	spin_unlock_irq(&chip->reg_lock);
1513 
1514 	return 0;
1515 }
1516 
1517 /*
1518  * get current pointer
1519  */
1520 static unsigned int
1521 snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1522 {
1523 	u16 hi = 0, lo = 0;
1524 	int retry = 10;
1525 	u32 addr;
1526 
1527 	/*
1528 	 * try and get a valid answer
1529 	 */
1530 	while (retry--) {
1531 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1532 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1533 
1534 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1535 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1536 
1537 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1538 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1539 			break;
1540 	}
1541 	addr = lo | ((u32)hi<<16);
1542 	return (unsigned int)(addr - s->buffer_addr);
1543 }
1544 
1545 static snd_pcm_uframes_t
1546 snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
1547 {
1548 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1549 	unsigned int ptr;
1550 	struct m3_dma *s = subs->runtime->private_data;
1551 	snd_assert(s != NULL, return 0);
1552 
1553 	spin_lock(&chip->reg_lock);
1554 	ptr = snd_m3_get_pointer(chip, s, subs);
1555 	spin_unlock(&chip->reg_lock);
1556 	return bytes_to_frames(subs->runtime, ptr);
1557 }
1558 
1559 
1560 /* update pointer */
1561 /* spinlock held! */
1562 static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
1563 {
1564 	struct snd_pcm_substream *subs = s->substream;
1565 	unsigned int hwptr;
1566 	int diff;
1567 
1568 	if (! s->running)
1569 		return;
1570 
1571 	hwptr = snd_m3_get_pointer(chip, s, subs);
1572 
1573 	/* try to avoid expensive modulo divisions */
1574 	if (hwptr >= s->dma_size)
1575 		hwptr %= s->dma_size;
1576 
1577 	diff = s->dma_size + hwptr - s->hwptr;
1578 	if (diff >= s->dma_size)
1579 		diff %= s->dma_size;
1580 
1581 	s->hwptr = hwptr;
1582 	s->count += diff;
1583 
1584 	if (s->count >= (signed)s->period_size) {
1585 
1586 		if (s->count < 2 * (signed)s->period_size)
1587 			s->count -= (signed)s->period_size;
1588 		else
1589 			s->count %= s->period_size;
1590 
1591 		spin_unlock(&chip->reg_lock);
1592 		snd_pcm_period_elapsed(subs);
1593 		spin_lock(&chip->reg_lock);
1594 	}
1595 }
1596 
1597 static void snd_m3_update_hw_volume(unsigned long private_data)
1598 {
1599 	struct snd_m3 *chip = (struct snd_m3 *) private_data;
1600 	int x, val;
1601 	unsigned long flags;
1602 
1603 	/* Figure out which volume control button was pushed,
1604 	   based on differences from the default register
1605 	   values. */
1606 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1607 
1608 	/* Reset the volume control registers. */
1609 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1610 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1611 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1612 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1613 
1614 	if (!chip->master_switch || !chip->master_volume)
1615 		return;
1616 
1617 	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
1618 	spin_lock_irqsave(&chip->ac97_lock, flags);
1619 
1620 	val = chip->ac97->regs[AC97_MASTER_VOL];
1621 	switch (x) {
1622 	case 0x88:
1623 		/* mute */
1624 		val ^= 0x8000;
1625 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1626 		outw(val, chip->iobase + CODEC_DATA);
1627 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1628 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1629 			       &chip->master_switch->id);
1630 		break;
1631 	case 0xaa:
1632 		/* volume up */
1633 		if ((val & 0x7f) > 0)
1634 			val--;
1635 		if ((val & 0x7f00) > 0)
1636 			val -= 0x0100;
1637 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1638 		outw(val, chip->iobase + CODEC_DATA);
1639 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1640 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1641 			       &chip->master_volume->id);
1642 		break;
1643 	case 0x66:
1644 		/* volume down */
1645 		if ((val & 0x7f) < 0x1f)
1646 			val++;
1647 		if ((val & 0x7f00) < 0x1f00)
1648 			val += 0x0100;
1649 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1650 		outw(val, chip->iobase + CODEC_DATA);
1651 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1652 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1653 			       &chip->master_volume->id);
1654 		break;
1655 	}
1656 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1657 }
1658 
1659 static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
1660 {
1661 	struct snd_m3 *chip = dev_id;
1662 	u8 status;
1663 	int i;
1664 
1665 	status = inb(chip->iobase + HOST_INT_STATUS);
1666 
1667 	if (status == 0xff)
1668 		return IRQ_NONE;
1669 
1670 	if (status & HV_INT_PENDING)
1671 		tasklet_hi_schedule(&chip->hwvol_tq);
1672 
1673 	/*
1674 	 * ack an assp int if its running
1675 	 * and has an int pending
1676 	 */
1677 	if (status & ASSP_INT_PENDING) {
1678 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1679 		if (!(ctl & STOP_ASSP_CLOCK)) {
1680 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1681 			if (ctl & DSP2HOST_REQ_TIMER) {
1682 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1683 				/* update adc/dac info if it was a timer int */
1684 				spin_lock(&chip->reg_lock);
1685 				for (i = 0; i < chip->num_substreams; i++) {
1686 					struct m3_dma *s = &chip->substreams[i];
1687 					if (s->running)
1688 						snd_m3_update_ptr(chip, s);
1689 				}
1690 				spin_unlock(&chip->reg_lock);
1691 			}
1692 		}
1693 	}
1694 
1695 #if 0 /* TODO: not supported yet */
1696 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1697 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1698 #endif
1699 
1700 	/* ack ints */
1701 	outb(status, chip->iobase + HOST_INT_STATUS);
1702 
1703 	return IRQ_HANDLED;
1704 }
1705 
1706 
1707 /*
1708  */
1709 
1710 static struct snd_pcm_hardware snd_m3_playback =
1711 {
1712 	.info =			(SNDRV_PCM_INFO_MMAP |
1713 				 SNDRV_PCM_INFO_INTERLEAVED |
1714 				 SNDRV_PCM_INFO_MMAP_VALID |
1715 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1716 				 /*SNDRV_PCM_INFO_PAUSE |*/
1717 				 SNDRV_PCM_INFO_RESUME),
1718 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1719 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1720 	.rate_min =		8000,
1721 	.rate_max =		48000,
1722 	.channels_min =		1,
1723 	.channels_max =		2,
1724 	.buffer_bytes_max =	(512*1024),
1725 	.period_bytes_min =	64,
1726 	.period_bytes_max =	(512*1024),
1727 	.periods_min =		1,
1728 	.periods_max =		1024,
1729 };
1730 
1731 static struct snd_pcm_hardware snd_m3_capture =
1732 {
1733 	.info =			(SNDRV_PCM_INFO_MMAP |
1734 				 SNDRV_PCM_INFO_INTERLEAVED |
1735 				 SNDRV_PCM_INFO_MMAP_VALID |
1736 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1737 				 /*SNDRV_PCM_INFO_PAUSE |*/
1738 				 SNDRV_PCM_INFO_RESUME),
1739 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1740 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1741 	.rate_min =		8000,
1742 	.rate_max =		48000,
1743 	.channels_min =		1,
1744 	.channels_max =		2,
1745 	.buffer_bytes_max =	(512*1024),
1746 	.period_bytes_min =	64,
1747 	.period_bytes_max =	(512*1024),
1748 	.periods_min =		1,
1749 	.periods_max =		1024,
1750 };
1751 
1752 
1753 /*
1754  */
1755 
1756 static int
1757 snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1758 {
1759 	int i;
1760 	struct m3_dma *s;
1761 
1762 	spin_lock_irq(&chip->reg_lock);
1763 	for (i = 0; i < chip->num_substreams; i++) {
1764 		s = &chip->substreams[i];
1765 		if (! s->opened)
1766 			goto __found;
1767 	}
1768 	spin_unlock_irq(&chip->reg_lock);
1769 	return -ENOMEM;
1770 __found:
1771 	s->opened = 1;
1772 	s->running = 0;
1773 	spin_unlock_irq(&chip->reg_lock);
1774 
1775 	subs->runtime->private_data = s;
1776 	s->substream = subs;
1777 
1778 	/* set list owners */
1779 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1780 		s->index_list[0] = &chip->mixer_list;
1781 	} else
1782 		s->index_list[0] = &chip->adc1_list;
1783 	s->index_list[1] = &chip->msrc_list;
1784 	s->index_list[2] = &chip->dma_list;
1785 
1786 	return 0;
1787 }
1788 
1789 static void
1790 snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1791 {
1792 	struct m3_dma *s = subs->runtime->private_data;
1793 
1794 	if (s == NULL)
1795 		return; /* not opened properly */
1796 
1797 	spin_lock_irq(&chip->reg_lock);
1798 	if (s->substream && s->running)
1799 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1800 	if (s->in_lists) {
1801 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1802 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1803 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1804 		s->in_lists = 0;
1805 	}
1806 	s->running = 0;
1807 	s->opened = 0;
1808 	spin_unlock_irq(&chip->reg_lock);
1809 }
1810 
1811 static int
1812 snd_m3_playback_open(struct snd_pcm_substream *subs)
1813 {
1814 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1815 	struct snd_pcm_runtime *runtime = subs->runtime;
1816 	int err;
1817 
1818 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1819 		return err;
1820 
1821 	runtime->hw = snd_m3_playback;
1822 
1823 	return 0;
1824 }
1825 
1826 static int
1827 snd_m3_playback_close(struct snd_pcm_substream *subs)
1828 {
1829 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1830 
1831 	snd_m3_substream_close(chip, subs);
1832 	return 0;
1833 }
1834 
1835 static int
1836 snd_m3_capture_open(struct snd_pcm_substream *subs)
1837 {
1838 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1839 	struct snd_pcm_runtime *runtime = subs->runtime;
1840 	int err;
1841 
1842 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1843 		return err;
1844 
1845 	runtime->hw = snd_m3_capture;
1846 
1847 	return 0;
1848 }
1849 
1850 static int
1851 snd_m3_capture_close(struct snd_pcm_substream *subs)
1852 {
1853 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1854 
1855 	snd_m3_substream_close(chip, subs);
1856 	return 0;
1857 }
1858 
1859 /*
1860  * create pcm instance
1861  */
1862 
1863 static struct snd_pcm_ops snd_m3_playback_ops = {
1864 	.open =		snd_m3_playback_open,
1865 	.close =	snd_m3_playback_close,
1866 	.ioctl =	snd_pcm_lib_ioctl,
1867 	.hw_params =	snd_m3_pcm_hw_params,
1868 	.hw_free =	snd_m3_pcm_hw_free,
1869 	.prepare =	snd_m3_pcm_prepare,
1870 	.trigger =	snd_m3_pcm_trigger,
1871 	.pointer =	snd_m3_pcm_pointer,
1872 };
1873 
1874 static struct snd_pcm_ops snd_m3_capture_ops = {
1875 	.open =		snd_m3_capture_open,
1876 	.close =	snd_m3_capture_close,
1877 	.ioctl =	snd_pcm_lib_ioctl,
1878 	.hw_params =	snd_m3_pcm_hw_params,
1879 	.hw_free =	snd_m3_pcm_hw_free,
1880 	.prepare =	snd_m3_pcm_prepare,
1881 	.trigger =	snd_m3_pcm_trigger,
1882 	.pointer =	snd_m3_pcm_pointer,
1883 };
1884 
1885 static int __devinit
1886 snd_m3_pcm(struct snd_m3 * chip, int device)
1887 {
1888 	struct snd_pcm *pcm;
1889 	int err;
1890 
1891 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1892 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1893 	if (err < 0)
1894 		return err;
1895 
1896 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1897 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1898 
1899 	pcm->private_data = chip;
1900 	pcm->info_flags = 0;
1901 	strcpy(pcm->name, chip->card->driver);
1902 	chip->pcm = pcm;
1903 
1904 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1905 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1906 
1907 	return 0;
1908 }
1909 
1910 
1911 /*
1912  * ac97 interface
1913  */
1914 
1915 /*
1916  * Wait for the ac97 serial bus to be free.
1917  * return nonzero if the bus is still busy.
1918  */
1919 static int snd_m3_ac97_wait(struct snd_m3 *chip)
1920 {
1921 	int i = 10000;
1922 
1923 	do {
1924 		if (! (snd_m3_inb(chip, 0x30) & 1))
1925 			return 0;
1926 		cpu_relax();
1927 	} while (i-- > 0);
1928 
1929 	snd_printk(KERN_ERR "ac97 serial bus busy\n");
1930 	return 1;
1931 }
1932 
1933 static unsigned short
1934 snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1935 {
1936 	struct snd_m3 *chip = ac97->private_data;
1937 	unsigned long flags;
1938 	unsigned short data = 0xffff;
1939 
1940 	if (snd_m3_ac97_wait(chip))
1941 		goto fail;
1942 	spin_lock_irqsave(&chip->ac97_lock, flags);
1943 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1944 	if (snd_m3_ac97_wait(chip))
1945 		goto fail_unlock;
1946 	data = snd_m3_inw(chip, CODEC_DATA);
1947 fail_unlock:
1948 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1949 fail:
1950 	return data;
1951 }
1952 
1953 static void
1954 snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
1955 {
1956 	struct snd_m3 *chip = ac97->private_data;
1957 	unsigned long flags;
1958 
1959 	if (snd_m3_ac97_wait(chip))
1960 		return;
1961 	spin_lock_irqsave(&chip->ac97_lock, flags);
1962 	snd_m3_outw(chip, val, CODEC_DATA);
1963 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1964 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1965 }
1966 
1967 
1968 static void snd_m3_remote_codec_config(int io, int isremote)
1969 {
1970 	isremote = isremote ? 1 : 0;
1971 
1972 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
1973 	     io + RING_BUS_CTRL_B);
1974 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
1975 	     io + SDO_OUT_DEST_CTRL);
1976 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
1977 	     io + SDO_IN_DEST_CTRL);
1978 }
1979 
1980 /*
1981  * hack, returns non zero on err
1982  */
1983 static int snd_m3_try_read_vendor(struct snd_m3 *chip)
1984 {
1985 	u16 ret;
1986 
1987 	if (snd_m3_ac97_wait(chip))
1988 		return 1;
1989 
1990 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
1991 
1992 	if (snd_m3_ac97_wait(chip))
1993 		return 1;
1994 
1995 	ret = snd_m3_inw(chip, 0x32);
1996 
1997 	return (ret == 0) || (ret == 0xffff);
1998 }
1999 
2000 static void snd_m3_ac97_reset(struct snd_m3 *chip)
2001 {
2002 	u16 dir;
2003 	int delay1 = 0, delay2 = 0, i;
2004 	int io = chip->iobase;
2005 
2006 	if (chip->allegro_flag) {
2007 		/*
2008 		 * the onboard codec on the allegro seems
2009 		 * to want to wait a very long time before
2010 		 * coming back to life
2011 		 */
2012 		delay1 = 50;
2013 		delay2 = 800;
2014 	} else {
2015 		/* maestro3 */
2016 		delay1 = 20;
2017 		delay2 = 500;
2018 	}
2019 
2020 	for (i = 0; i < 5; i++) {
2021 		dir = inw(io + GPIO_DIRECTION);
2022 		if (!chip->irda_workaround)
2023 			dir |= 0x10; /* assuming pci bus master? */
2024 
2025 		snd_m3_remote_codec_config(io, 0);
2026 
2027 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2028 		udelay(20);
2029 
2030 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2031 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2032 		outw(0, io + GPIO_DATA);
2033 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2034 
2035 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));
2036 
2037 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2038 		udelay(5);
2039 		/* ok, bring back the ac-link */
2040 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2041 		outw(~0, io + GPIO_MASK);
2042 
2043 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));
2044 
2045 		if (! snd_m3_try_read_vendor(chip))
2046 			break;
2047 
2048 		delay1 += 10;
2049 		delay2 += 100;
2050 
2051 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2052 			   delay1, delay2);
2053 	}
2054 
2055 #if 0
2056 	/* more gung-ho reset that doesn't
2057 	 * seem to work anywhere :)
2058 	 */
2059 	tmp = inw(io + RING_BUS_CTRL_A);
2060 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2061 	msleep(20);
2062 	outw(tmp, io + RING_BUS_CTRL_A);
2063 	msleep(50);
2064 #endif
2065 }
2066 
2067 static int __devinit snd_m3_mixer(struct snd_m3 *chip)
2068 {
2069 	struct snd_ac97_bus *pbus;
2070 	struct snd_ac97_template ac97;
2071 	struct snd_ctl_elem_id id;
2072 	int err;
2073 	static struct snd_ac97_bus_ops ops = {
2074 		.write = snd_m3_ac97_write,
2075 		.read = snd_m3_ac97_read,
2076 	};
2077 
2078 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2079 		return err;
2080 
2081 	memset(&ac97, 0, sizeof(ac97));
2082 	ac97.private_data = chip;
2083 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2084 		return err;
2085 
2086 	/* seems ac97 PCM needs initialization.. hack hack.. */
2087 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2088 	schedule_timeout_uninterruptible(msecs_to_jiffies(100));
2089 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2090 
2091 	memset(&id, 0, sizeof(id));
2092 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2093 	strcpy(id.name, "Master Playback Switch");
2094 	chip->master_switch = snd_ctl_find_id(chip->card, &id);
2095 	memset(&id, 0, sizeof(id));
2096 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2097 	strcpy(id.name, "Master Playback Volume");
2098 	chip->master_volume = snd_ctl_find_id(chip->card, &id);
2099 
2100 	return 0;
2101 }
2102 
2103 
2104 #ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
2105 
2106 /*
2107  * DSP Code images
2108  */
2109 
2110 static const u16 assp_kernel_image[] = {
2111     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2112     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2113     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2114     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2115     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2116     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2117     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2118     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2119     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2120     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2121     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2122     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2123     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2124     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2125     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2126     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2127     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2128     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2129     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2130     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2131     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2132     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2133     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2134     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2135     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2136     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2137     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2138     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2139     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2140     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2141     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2142     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2143     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2144     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2145     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2146     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2147     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2148     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2149     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2150     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2151     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2152     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2153     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2154     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2155     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2156     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2157     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2158     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2159     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2160     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2161     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2162     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2163     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2164     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2165     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2166     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2167     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2168     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2169     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2170     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2171     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2172     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2173     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2174     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2175     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2176     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2177     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2178     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2179     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2180     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2181     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2182     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2183     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2184     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2185     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2186     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2187     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2188     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2189     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2190     0xBE3A,
2191 };
2192 
2193 /*
2194  * Mini sample rate converter code image
2195  * that is to be loaded at 0x400 on the DSP.
2196  */
2197 static const u16 assp_minisrc_image[] = {
2198 
2199     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2200     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2201     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2202     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2203     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2204     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2205     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2206     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2207     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2208     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2209     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2210     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2211     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2212     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2213     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2214     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2215     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2216     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2217     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2218     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2219     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2220     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2221     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2222     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2223     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2224     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2225     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2226     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2227     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2228     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2229     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2230     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2231     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2232 };
2233 
2234 static const struct firmware assp_kernel = {
2235 	.data = (u8 *)assp_kernel_image,
2236 	.size = sizeof assp_kernel_image
2237 };
2238 static const struct firmware assp_minisrc = {
2239 	.data = (u8 *)assp_minisrc_image,
2240 	.size = sizeof assp_minisrc_image
2241 };
2242 
2243 #else /* CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL */
2244 
2245 #ifdef __LITTLE_ENDIAN
2246 static inline void snd_m3_convert_from_le(const struct firmware *fw) { }
2247 #else
2248 static void snd_m3_convert_from_le(const struct firmware *fw)
2249 {
2250 	int i;
2251 	u16 *data = (u16 *)fw->data;
2252 
2253 	for (i = 0; i < fw->size / 2; ++i)
2254 		le16_to_cpus(&data[i]);
2255 }
2256 #endif
2257 
2258 #endif /* CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL */
2259 
2260 
2261 /*
2262  * initialize ASSP
2263  */
2264 
2265 #define MINISRC_LPF_LEN 10
2266 static const u16 minisrc_lpf[MINISRC_LPF_LEN] = {
2267 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2268 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2269 };
2270 
2271 static void snd_m3_assp_init(struct snd_m3 *chip)
2272 {
2273 	unsigned int i;
2274 	u16 *data;
2275 
2276 	/* zero kernel data */
2277 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2278 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2279 				  KDATA_BASE_ADDR + i, 0);
2280 
2281 	/* zero mixer data? */
2282 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2283 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2284 				  KDATA_BASE_ADDR2 + i, 0);
2285 
2286 	/* init dma pointer */
2287 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2288 			  KDATA_CURRENT_DMA,
2289 			  KDATA_DMA_XFER0);
2290 
2291 	/* write kernel into code memory.. */
2292 	data = (u16 *)chip->assp_kernel_image->data;
2293 	for (i = 0 ; i * 2 < chip->assp_kernel_image->size; i++) {
2294 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2295 				  REV_B_CODE_MEMORY_BEGIN + i, data[i]);
2296 	}
2297 
2298 	/*
2299 	 * We only have this one client and we know that 0x400
2300 	 * is free in our kernel's mem map, so lets just
2301 	 * drop it there.  It seems that the minisrc doesn't
2302 	 * need vectors, so we won't bother with them..
2303 	 */
2304 	data = (u16 *)chip->assp_minisrc_image->data;
2305 	for (i = 0; i * 2 < chip->assp_minisrc_image->size; i++) {
2306 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2307 				  0x400 + i, data[i]);
2308 	}
2309 
2310 	/*
2311 	 * write the coefficients for the low pass filter?
2312 	 */
2313 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2314 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2315 				  0x400 + MINISRC_COEF_LOC + i,
2316 				  minisrc_lpf[i]);
2317 	}
2318 
2319 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2320 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2321 			  0x8000);
2322 
2323 	/*
2324 	 * the minisrc is the only thing on
2325 	 * our task list..
2326 	 */
2327 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2328 			  KDATA_TASK0,
2329 			  0x400);
2330 
2331 	/*
2332 	 * init the mixer number..
2333 	 */
2334 
2335 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2336 			  KDATA_MIXER_TASK_NUMBER,0);
2337 
2338 	/*
2339 	 * EXTREME KERNEL MASTER VOLUME
2340 	 */
2341 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2342 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2343 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2344 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2345 
2346 	chip->mixer_list.curlen = 0;
2347 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2348 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2349 	chip->adc1_list.curlen = 0;
2350 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2351 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2352 	chip->dma_list.curlen = 0;
2353 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2354 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2355 	chip->msrc_list.curlen = 0;
2356 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2357 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2358 }
2359 
2360 
2361 static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
2362 {
2363 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2364 			       MINISRC_IN_BUFFER_SIZE / 2 +
2365 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2366 	int address, i;
2367 
2368 	/*
2369 	 * the revb memory map has 0x1100 through 0x1c00
2370 	 * free.
2371 	 */
2372 
2373 	/*
2374 	 * align instance address to 256 bytes so that its
2375 	 * shifted list address is aligned.
2376 	 * list address = (mem address >> 1) >> 7;
2377 	 */
2378 	data_bytes = ALIGN(data_bytes, 256);
2379 	address = 0x1100 + ((data_bytes/2) * index);
2380 
2381 	if ((address + (data_bytes/2)) >= 0x1c00) {
2382 		snd_printk(KERN_ERR "no memory for %d bytes at ind %d (addr 0x%x)\n",
2383 			   data_bytes, index, address);
2384 		return -ENOMEM;
2385 	}
2386 
2387 	s->number = index;
2388 	s->inst.code = 0x400;
2389 	s->inst.data = address;
2390 
2391 	for (i = data_bytes / 2; i > 0; address++, i--) {
2392 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2393 				  address, 0);
2394 	}
2395 
2396 	return 0;
2397 }
2398 
2399 
2400 /*
2401  * this works for the reference board, have to find
2402  * out about others
2403  *
2404  * this needs more magic for 4 speaker, but..
2405  */
2406 static void
2407 snd_m3_amp_enable(struct snd_m3 *chip, int enable)
2408 {
2409 	int io = chip->iobase;
2410 	u16 gpo, polarity;
2411 
2412 	if (! chip->external_amp)
2413 		return;
2414 
2415 	polarity = enable ? 0 : 1;
2416 	polarity = polarity << chip->amp_gpio;
2417 	gpo = 1 << chip->amp_gpio;
2418 
2419 	outw(~gpo, io + GPIO_MASK);
2420 
2421 	outw(inw(io + GPIO_DIRECTION) | gpo,
2422 	     io + GPIO_DIRECTION);
2423 
2424 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2425 	     io + GPIO_DATA);
2426 
2427 	outw(0xffff, io + GPIO_MASK);
2428 }
2429 
2430 static int
2431 snd_m3_chip_init(struct snd_m3 *chip)
2432 {
2433 	struct pci_dev *pcidev = chip->pci;
2434 	unsigned long io = chip->iobase;
2435 	u32 n;
2436 	u16 w;
2437 	u8 t; /* makes as much sense as 'n', no? */
2438 
2439 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2440 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2441 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2442 	       DISABLE_LEGACY);
2443 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2444 
2445 	if (chip->is_omnibook) {
2446 		/*
2447 		 * Volume buttons on some HP OmniBook laptops don't work
2448 		 * correctly. This makes them work for the most part.
2449 		 *
2450 		 * Volume up and down buttons on the laptop side work.
2451 		 * Fn+cursor_up (volme up) works.
2452 		 * Fn+cursor_down (volume down) doesn't work.
2453 		 * Fn+F7 (mute) works acts as volume up.
2454 		 */
2455 		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
2456 		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
2457 		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
2458 		outw(0xffff, io + GPIO_MASK);
2459 	}
2460 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2461 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2462 	n |= chip->hv_config;
2463 	/* For some reason we must always use reduced debounce. */
2464 	n |= REDUCED_DEBOUNCE;
2465 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2466 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2467 
2468 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2469 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2470 	n &= ~INT_CLK_SELECT;
2471 	if (!chip->allegro_flag) {
2472 		n &= ~INT_CLK_MULT_ENABLE;
2473 		n |= INT_CLK_SRC_NOT_PCI;
2474 	}
2475 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2476 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2477 
2478 	if (chip->allegro_flag) {
2479 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2480 		n |= IN_CLK_12MHZ_SELECT;
2481 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2482 	}
2483 
2484 	t = inb(chip->iobase + ASSP_CONTROL_A);
2485 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2486 	t |= ASSP_CLK_49MHZ_SELECT;
2487 	t |= ASSP_0_WS_ENABLE;
2488 	outb(t, chip->iobase + ASSP_CONTROL_A);
2489 
2490 	snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
2491 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2492 
2493 	outb(0x00, io + HARDWARE_VOL_CTRL);
2494 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2495 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2496 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2497 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2498 
2499 	return 0;
2500 }
2501 
2502 static void
2503 snd_m3_enable_ints(struct snd_m3 *chip)
2504 {
2505 	unsigned long io = chip->iobase;
2506 	unsigned short val;
2507 
2508 	/* TODO: MPU401 not supported yet */
2509 	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2510 	if (chip->hv_config & HV_CTRL_ENABLE)
2511 		val |= HV_INT_ENABLE;
2512 	outw(val, io + HOST_INT_CTRL);
2513 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2514 	     io + ASSP_CONTROL_C);
2515 }
2516 
2517 
2518 /*
2519  */
2520 
2521 static int snd_m3_free(struct snd_m3 *chip)
2522 {
2523 	struct m3_dma *s;
2524 	int i;
2525 
2526 	if (chip->substreams) {
2527 		spin_lock_irq(&chip->reg_lock);
2528 		for (i = 0; i < chip->num_substreams; i++) {
2529 			s = &chip->substreams[i];
2530 			/* check surviving pcms; this should not happen though.. */
2531 			if (s->substream && s->running)
2532 				snd_m3_pcm_stop(chip, s, s->substream);
2533 		}
2534 		spin_unlock_irq(&chip->reg_lock);
2535 		kfree(chip->substreams);
2536 	}
2537 	if (chip->iobase) {
2538 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2539 	}
2540 
2541 #ifdef CONFIG_PM
2542 	vfree(chip->suspend_mem);
2543 #endif
2544 
2545 	if (chip->irq >= 0) {
2546 		synchronize_irq(chip->irq);
2547 		free_irq(chip->irq, chip);
2548 	}
2549 
2550 	if (chip->iobase)
2551 		pci_release_regions(chip->pci);
2552 
2553 #ifndef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
2554 	release_firmware(chip->assp_kernel_image);
2555 	release_firmware(chip->assp_minisrc_image);
2556 #endif
2557 
2558 	pci_disable_device(chip->pci);
2559 	kfree(chip);
2560 	return 0;
2561 }
2562 
2563 
2564 /*
2565  * APM support
2566  */
2567 #ifdef CONFIG_PM
2568 static int m3_suspend(struct pci_dev *pci, pm_message_t state)
2569 {
2570 	struct snd_card *card = pci_get_drvdata(pci);
2571 	struct snd_m3 *chip = card->private_data;
2572 	int i, index;
2573 
2574 	if (chip->suspend_mem == NULL)
2575 		return 0;
2576 
2577 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2578 	snd_pcm_suspend_all(chip->pcm);
2579 	snd_ac97_suspend(chip->ac97);
2580 
2581 	msleep(10); /* give the assp a chance to idle.. */
2582 
2583 	snd_m3_assp_halt(chip);
2584 
2585 	/* save dsp image */
2586 	index = 0;
2587 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2588 		chip->suspend_mem[index++] =
2589 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2590 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2591 		chip->suspend_mem[index++] =
2592 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2593 
2594 	pci_disable_device(pci);
2595 	pci_save_state(pci);
2596 	pci_set_power_state(pci, pci_choose_state(pci, state));
2597 	return 0;
2598 }
2599 
2600 static int m3_resume(struct pci_dev *pci)
2601 {
2602 	struct snd_card *card = pci_get_drvdata(pci);
2603 	struct snd_m3 *chip = card->private_data;
2604 	int i, index;
2605 
2606 	if (chip->suspend_mem == NULL)
2607 		return 0;
2608 
2609 	pci_set_power_state(pci, PCI_D0);
2610 	pci_restore_state(pci);
2611 	if (pci_enable_device(pci) < 0) {
2612 		printk(KERN_ERR "maestor3: pci_enable_device failed, "
2613 		       "disabling device\n");
2614 		snd_card_disconnect(card);
2615 		return -EIO;
2616 	}
2617 	pci_set_master(pci);
2618 
2619 	/* first lets just bring everything back. .*/
2620 	snd_m3_outw(chip, 0, 0x54);
2621 	snd_m3_outw(chip, 0, 0x56);
2622 
2623 	snd_m3_chip_init(chip);
2624 	snd_m3_assp_halt(chip);
2625 	snd_m3_ac97_reset(chip);
2626 
2627 	/* restore dsp image */
2628 	index = 0;
2629 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2630 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2631 				  chip->suspend_mem[index++]);
2632 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2633 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2634 				  chip->suspend_mem[index++]);
2635 
2636 	/* tell the dma engine to restart itself */
2637 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2638 			  KDATA_DMA_ACTIVE, 0);
2639 
2640         /* restore ac97 registers */
2641 	snd_ac97_resume(chip->ac97);
2642 
2643 	snd_m3_assp_continue(chip);
2644 	snd_m3_enable_ints(chip);
2645 	snd_m3_amp_enable(chip, 1);
2646 
2647 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2648 	return 0;
2649 }
2650 #endif /* CONFIG_PM */
2651 
2652 
2653 /*
2654  */
2655 
2656 static int snd_m3_dev_free(struct snd_device *device)
2657 {
2658 	struct snd_m3 *chip = device->device_data;
2659 	return snd_m3_free(chip);
2660 }
2661 
2662 static int __devinit
2663 snd_m3_create(struct snd_card *card, struct pci_dev *pci,
2664 	      int enable_amp,
2665 	      int amp_gpio,
2666 	      struct snd_m3 **chip_ret)
2667 {
2668 	struct snd_m3 *chip;
2669 	int i, err;
2670 	const struct snd_pci_quirk *quirk;
2671 	static struct snd_device_ops ops = {
2672 		.dev_free =	snd_m3_dev_free,
2673 	};
2674 
2675 	*chip_ret = NULL;
2676 
2677 	if (pci_enable_device(pci))
2678 		return -EIO;
2679 
2680 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2681 	if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
2682 	    pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
2683 		snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
2684 		pci_disable_device(pci);
2685 		return -ENXIO;
2686 	}
2687 
2688 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2689 	if (chip == NULL) {
2690 		pci_disable_device(pci);
2691 		return -ENOMEM;
2692 	}
2693 
2694 	spin_lock_init(&chip->reg_lock);
2695 	spin_lock_init(&chip->ac97_lock);
2696 
2697 	switch (pci->device) {
2698 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2699 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2700 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2701 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2702 		chip->allegro_flag = 1;
2703 		break;
2704 	}
2705 
2706 	chip->card = card;
2707 	chip->pci = pci;
2708 	chip->irq = -1;
2709 
2710 	chip->external_amp = enable_amp;
2711 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2712 		chip->amp_gpio = amp_gpio;
2713 	else {
2714 		quirk = snd_pci_quirk_lookup(pci, m3_amp_quirk_list);
2715 		if (quirk) {
2716 			snd_printdd(KERN_INFO "maestro3: set amp-gpio "
2717 				    "for '%s'\n", quirk->name);
2718 			chip->amp_gpio = quirk->value;
2719 		} else if (chip->allegro_flag)
2720 			chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2721 		else /* presumably this is for all 'maestro3's.. */
2722 			chip->amp_gpio = GPO_EXT_AMP_M3;
2723 	}
2724 
2725 	quirk = snd_pci_quirk_lookup(pci, m3_irda_quirk_list);
2726 	if (quirk) {
2727 		snd_printdd(KERN_INFO "maestro3: enabled irda workaround "
2728 			    "for '%s'\n", quirk->name);
2729 		chip->irda_workaround = 1;
2730 	}
2731 	quirk = snd_pci_quirk_lookup(pci, m3_hv_quirk_list);
2732 	if (quirk)
2733 		chip->hv_config = quirk->value;
2734 	if (snd_pci_quirk_lookup(pci, m3_omnibook_quirk_list))
2735 		chip->is_omnibook = 1;
2736 
2737 	chip->num_substreams = NR_DSPS;
2738 	chip->substreams = kcalloc(chip->num_substreams, sizeof(struct m3_dma),
2739 				   GFP_KERNEL);
2740 	if (chip->substreams == NULL) {
2741 		kfree(chip);
2742 		pci_disable_device(pci);
2743 		return -ENOMEM;
2744 	}
2745 
2746 #ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
2747 	chip->assp_kernel_image = &assp_kernel;
2748 #else
2749 	err = request_firmware(&chip->assp_kernel_image,
2750 			       "ess/maestro3_assp_kernel.fw", &pci->dev);
2751 	if (err < 0) {
2752 		snd_m3_free(chip);
2753 		return err;
2754 	} else
2755 		snd_m3_convert_from_le(chip->assp_kernel_image);
2756 #endif
2757 
2758 #ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
2759 	chip->assp_minisrc_image = &assp_minisrc;
2760 #else
2761 	err = request_firmware(&chip->assp_minisrc_image,
2762 			       "ess/maestro3_assp_minisrc.fw", &pci->dev);
2763 	if (err < 0) {
2764 		snd_m3_free(chip);
2765 		return err;
2766 	} else
2767 		snd_m3_convert_from_le(chip->assp_minisrc_image);
2768 #endif
2769 
2770 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2771 		snd_m3_free(chip);
2772 		return err;
2773 	}
2774 	chip->iobase = pci_resource_start(pci, 0);
2775 
2776 	/* just to be sure */
2777 	pci_set_master(pci);
2778 
2779 	snd_m3_chip_init(chip);
2780 	snd_m3_assp_halt(chip);
2781 
2782 	snd_m3_ac97_reset(chip);
2783 
2784 	snd_m3_amp_enable(chip, 1);
2785 
2786 	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);
2787 
2788 	if (request_irq(pci->irq, snd_m3_interrupt, IRQF_SHARED,
2789 			card->driver, chip)) {
2790 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2791 		snd_m3_free(chip);
2792 		return -ENOMEM;
2793 	}
2794 	chip->irq = pci->irq;
2795 
2796 #ifdef CONFIG_PM
2797 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2798 	if (chip->suspend_mem == NULL)
2799 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2800 #endif
2801 
2802 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2803 		snd_m3_free(chip);
2804 		return err;
2805 	}
2806 
2807 	if ((err = snd_m3_mixer(chip)) < 0)
2808 		return err;
2809 
2810 	for (i = 0; i < chip->num_substreams; i++) {
2811 		struct m3_dma *s = &chip->substreams[i];
2812 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2813 			return err;
2814 	}
2815 
2816 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2817 		return err;
2818 
2819 	snd_m3_enable_ints(chip);
2820 	snd_m3_assp_continue(chip);
2821 
2822 	snd_card_set_dev(card, &pci->dev);
2823 
2824 	*chip_ret = chip;
2825 
2826 	return 0;
2827 }
2828 
2829 /*
2830  */
2831 static int __devinit
2832 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2833 {
2834 	static int dev;
2835 	struct snd_card *card;
2836 	struct snd_m3 *chip;
2837 	int err;
2838 
2839 	/* don't pick up modems */
2840 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2841 		return -ENODEV;
2842 
2843 	if (dev >= SNDRV_CARDS)
2844 		return -ENODEV;
2845 	if (!enable[dev]) {
2846 		dev++;
2847 		return -ENOENT;
2848 	}
2849 
2850 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2851 	if (card == NULL)
2852 		return -ENOMEM;
2853 
2854 	switch (pci->device) {
2855 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2856 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2857 		strcpy(card->driver, "Allegro");
2858 		break;
2859 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2860 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2861 		strcpy(card->driver, "Canyon3D-2");
2862 		break;
2863 	default:
2864 		strcpy(card->driver, "Maestro3");
2865 		break;
2866 	}
2867 
2868 	if ((err = snd_m3_create(card, pci,
2869 				 external_amp[dev],
2870 				 amp_gpio[dev],
2871 				 &chip)) < 0) {
2872 		snd_card_free(card);
2873 		return err;
2874 	}
2875 	card->private_data = chip;
2876 
2877 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2878 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2879 		card->shortname, chip->iobase, chip->irq);
2880 
2881 	if ((err = snd_card_register(card)) < 0) {
2882 		snd_card_free(card);
2883 		return err;
2884 	}
2885 
2886 #if 0 /* TODO: not supported yet */
2887 	/* TODO enable MIDI IRQ and I/O */
2888 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2889 				  chip->iobase + MPU401_DATA_PORT,
2890 				  MPU401_INFO_INTEGRATED,
2891 				  chip->irq, 0, &chip->rmidi);
2892 	if (err < 0)
2893 		printk(KERN_WARNING "maestro3: no MIDI support.\n");
2894 #endif
2895 
2896 	pci_set_drvdata(pci, card);
2897 	dev++;
2898 	return 0;
2899 }
2900 
2901 static void __devexit snd_m3_remove(struct pci_dev *pci)
2902 {
2903 	snd_card_free(pci_get_drvdata(pci));
2904 	pci_set_drvdata(pci, NULL);
2905 }
2906 
2907 static struct pci_driver driver = {
2908 	.name = "Maestro3",
2909 	.id_table = snd_m3_ids,
2910 	.probe = snd_m3_probe,
2911 	.remove = __devexit_p(snd_m3_remove),
2912 #ifdef CONFIG_PM
2913 	.suspend = m3_suspend,
2914 	.resume = m3_resume,
2915 #endif
2916 };
2917 
2918 static int __init alsa_card_m3_init(void)
2919 {
2920 	return pci_register_driver(&driver);
2921 }
2922 
2923 static void __exit alsa_card_m3_exit(void)
2924 {
2925 	pci_unregister_driver(&driver);
2926 }
2927 
2928 module_init(alsa_card_m3_init)
2929 module_exit(alsa_card_m3_exit)
2930