xref: /openbmc/linux/sound/pci/maestro3.c (revision d2f6409584e2c62ffad81690562330ff3bf4a458)
1 /*
2  * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
3  * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
4  *                       Takashi Iwai <tiwai@suse.de>
5  *
6  * Most of the hardware init stuffs are based on maestro3 driver for
7  * OSS/Free by Zach Brown.  Many thanks to Zach!
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  *
24  * ChangeLog:
25  * Aug. 27, 2001
26  *     - Fixed deadlock on capture
27  *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
28  *
29  */
30 
31 #define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
32 #define DRIVER_NAME "Maestro3"
33 
34 #include <sound/driver.h>
35 #include <asm/io.h>
36 #include <linux/delay.h>
37 #include <linux/interrupt.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/slab.h>
41 #include <linux/vmalloc.h>
42 #include <linux/moduleparam.h>
43 #include <sound/core.h>
44 #include <sound/info.h>
45 #include <sound/control.h>
46 #include <sound/pcm.h>
47 #include <sound/mpu401.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/initval.h>
50 
51 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
52 MODULE_DESCRIPTION("ESS Maestro3 PCI");
53 MODULE_LICENSE("GPL");
54 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
55 		"{ESS,ES1988},"
56 		"{ESS,Allegro PCI},"
57 		"{ESS,Allegro-1 PCI},"
58 	        "{ESS,Canyon3D-2/LE PCI}}");
59 
60 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
61 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
62 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
63 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
64 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
65 
66 module_param_array(index, int, NULL, 0444);
67 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
68 module_param_array(id, charp, NULL, 0444);
69 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
70 module_param_array(enable, bool, NULL, 0444);
71 MODULE_PARM_DESC(enable, "Enable this soundcard.");
72 module_param_array(external_amp, bool, NULL, 0444);
73 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
74 module_param_array(amp_gpio, int, NULL, 0444);
75 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
76 
77 #define MAX_PLAYBACKS	2
78 #define MAX_CAPTURES	1
79 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
80 
81 
82 /*
83  * maestro3 registers
84  */
85 
86 /* Allegro PCI configuration registers */
87 #define PCI_LEGACY_AUDIO_CTRL   0x40
88 #define SOUND_BLASTER_ENABLE    0x00000001
89 #define FM_SYNTHESIS_ENABLE     0x00000002
90 #define GAME_PORT_ENABLE        0x00000004
91 #define MPU401_IO_ENABLE        0x00000008
92 #define MPU401_IRQ_ENABLE       0x00000010
93 #define ALIAS_10BIT_IO          0x00000020
94 #define SB_DMA_MASK             0x000000C0
95 #define SB_DMA_0                0x00000040
96 #define SB_DMA_1                0x00000040
97 #define SB_DMA_R                0x00000080
98 #define SB_DMA_3                0x000000C0
99 #define SB_IRQ_MASK             0x00000700
100 #define SB_IRQ_5                0x00000000
101 #define SB_IRQ_7                0x00000100
102 #define SB_IRQ_9                0x00000200
103 #define SB_IRQ_10               0x00000300
104 #define MIDI_IRQ_MASK           0x00003800
105 #define SERIAL_IRQ_ENABLE       0x00004000
106 #define DISABLE_LEGACY          0x00008000
107 
108 #define PCI_ALLEGRO_CONFIG      0x50
109 #define SB_ADDR_240             0x00000004
110 #define MPU_ADDR_MASK           0x00000018
111 #define MPU_ADDR_330            0x00000000
112 #define MPU_ADDR_300            0x00000008
113 #define MPU_ADDR_320            0x00000010
114 #define MPU_ADDR_340            0x00000018
115 #define USE_PCI_TIMING          0x00000040
116 #define POSTED_WRITE_ENABLE     0x00000080
117 #define DMA_POLICY_MASK         0x00000700
118 #define DMA_DDMA                0x00000000
119 #define DMA_TDMA                0x00000100
120 #define DMA_PCPCI               0x00000200
121 #define DMA_WBDMA16             0x00000400
122 #define DMA_WBDMA4              0x00000500
123 #define DMA_WBDMA2              0x00000600
124 #define DMA_WBDMA1              0x00000700
125 #define DMA_SAFE_GUARD          0x00000800
126 #define HI_PERF_GP_ENABLE       0x00001000
127 #define PIC_SNOOP_MODE_0        0x00002000
128 #define PIC_SNOOP_MODE_1        0x00004000
129 #define SOUNDBLASTER_IRQ_MASK   0x00008000
130 #define RING_IN_ENABLE          0x00010000
131 #define SPDIF_TEST_MODE         0x00020000
132 #define CLK_MULT_MODE_SELECT_2  0x00040000
133 #define EEPROM_WRITE_ENABLE     0x00080000
134 #define CODEC_DIR_IN            0x00100000
135 #define HV_BUTTON_FROM_GD       0x00200000
136 #define REDUCED_DEBOUNCE        0x00400000
137 #define HV_CTRL_ENABLE          0x00800000
138 #define SPDIF_ENABLE            0x01000000
139 #define CLK_DIV_SELECT          0x06000000
140 #define CLK_DIV_BY_48           0x00000000
141 #define CLK_DIV_BY_49           0x02000000
142 #define CLK_DIV_BY_50           0x04000000
143 #define CLK_DIV_RESERVED        0x06000000
144 #define PM_CTRL_ENABLE          0x08000000
145 #define CLK_MULT_MODE_SELECT    0x30000000
146 #define CLK_MULT_MODE_SHIFT     28
147 #define CLK_MULT_MODE_0         0x00000000
148 #define CLK_MULT_MODE_1         0x10000000
149 #define CLK_MULT_MODE_2         0x20000000
150 #define CLK_MULT_MODE_3         0x30000000
151 #define INT_CLK_SELECT          0x40000000
152 #define INT_CLK_MULT_RESET      0x80000000
153 
154 /* M3 */
155 #define INT_CLK_SRC_NOT_PCI     0x00100000
156 #define INT_CLK_MULT_ENABLE     0x80000000
157 
158 #define PCI_ACPI_CONTROL        0x54
159 #define PCI_ACPI_D0             0x00000000
160 #define PCI_ACPI_D1             0xB4F70000
161 #define PCI_ACPI_D2             0xB4F7B4F7
162 
163 #define PCI_USER_CONFIG         0x58
164 #define EXT_PCI_MASTER_ENABLE   0x00000001
165 #define SPDIF_OUT_SELECT        0x00000002
166 #define TEST_PIN_DIR_CTRL       0x00000004
167 #define AC97_CODEC_TEST         0x00000020
168 #define TRI_STATE_BUFFER        0x00000080
169 #define IN_CLK_12MHZ_SELECT     0x00000100
170 #define MULTI_FUNC_DISABLE      0x00000200
171 #define EXT_MASTER_PAIR_SEL     0x00000400
172 #define PCI_MASTER_SUPPORT      0x00000800
173 #define STOP_CLOCK_ENABLE       0x00001000
174 #define EAPD_DRIVE_ENABLE       0x00002000
175 #define REQ_TRI_STATE_ENABLE    0x00004000
176 #define REQ_LOW_ENABLE          0x00008000
177 #define MIDI_1_ENABLE           0x00010000
178 #define MIDI_2_ENABLE           0x00020000
179 #define SB_AUDIO_SYNC           0x00040000
180 #define HV_CTRL_TEST            0x00100000
181 #define SOUNDBLASTER_TEST       0x00400000
182 
183 #define PCI_USER_CONFIG_C       0x5C
184 
185 #define PCI_DDMA_CTRL           0x60
186 #define DDMA_ENABLE             0x00000001
187 
188 
189 /* Allegro registers */
190 #define HOST_INT_CTRL           0x18
191 #define SB_INT_ENABLE           0x0001
192 #define MPU401_INT_ENABLE       0x0002
193 #define ASSP_INT_ENABLE         0x0010
194 #define RING_INT_ENABLE         0x0020
195 #define HV_INT_ENABLE           0x0040
196 #define CLKRUN_GEN_ENABLE       0x0100
197 #define HV_CTRL_TO_PME          0x0400
198 #define SOFTWARE_RESET_ENABLE   0x8000
199 
200 /*
201  * should be using the above defines, probably.
202  */
203 #define REGB_ENABLE_RESET               0x01
204 #define REGB_STOP_CLOCK                 0x10
205 
206 #define HOST_INT_STATUS         0x1A
207 #define SB_INT_PENDING          0x01
208 #define MPU401_INT_PENDING      0x02
209 #define ASSP_INT_PENDING        0x10
210 #define RING_INT_PENDING        0x20
211 #define HV_INT_PENDING          0x40
212 
213 #define HARDWARE_VOL_CTRL       0x1B
214 #define SHADOW_MIX_REG_VOICE    0x1C
215 #define HW_VOL_COUNTER_VOICE    0x1D
216 #define SHADOW_MIX_REG_MASTER   0x1E
217 #define HW_VOL_COUNTER_MASTER   0x1F
218 
219 #define CODEC_COMMAND           0x30
220 #define CODEC_READ_B            0x80
221 
222 #define CODEC_STATUS            0x30
223 #define CODEC_BUSY_B            0x01
224 
225 #define CODEC_DATA              0x32
226 
227 #define RING_BUS_CTRL_A         0x36
228 #define RAC_PME_ENABLE          0x0100
229 #define RAC_SDFS_ENABLE         0x0200
230 #define LAC_PME_ENABLE          0x0400
231 #define LAC_SDFS_ENABLE         0x0800
232 #define SERIAL_AC_LINK_ENABLE   0x1000
233 #define IO_SRAM_ENABLE          0x2000
234 #define IIS_INPUT_ENABLE        0x8000
235 
236 #define RING_BUS_CTRL_B         0x38
237 #define SECOND_CODEC_ID_MASK    0x0003
238 #define SPDIF_FUNC_ENABLE       0x0010
239 #define SECOND_AC_ENABLE        0x0020
240 #define SB_MODULE_INTF_ENABLE   0x0040
241 #define SSPE_ENABLE             0x0040
242 #define M3I_DOCK_ENABLE         0x0080
243 
244 #define SDO_OUT_DEST_CTRL       0x3A
245 #define COMMAND_ADDR_OUT        0x0003
246 #define PCM_LR_OUT_LOCAL        0x0000
247 #define PCM_LR_OUT_REMOTE       0x0004
248 #define PCM_LR_OUT_MUTE         0x0008
249 #define PCM_LR_OUT_BOTH         0x000C
250 #define LINE1_DAC_OUT_LOCAL     0x0000
251 #define LINE1_DAC_OUT_REMOTE    0x0010
252 #define LINE1_DAC_OUT_MUTE      0x0020
253 #define LINE1_DAC_OUT_BOTH      0x0030
254 #define PCM_CLS_OUT_LOCAL       0x0000
255 #define PCM_CLS_OUT_REMOTE      0x0040
256 #define PCM_CLS_OUT_MUTE        0x0080
257 #define PCM_CLS_OUT_BOTH        0x00C0
258 #define PCM_RLF_OUT_LOCAL       0x0000
259 #define PCM_RLF_OUT_REMOTE      0x0100
260 #define PCM_RLF_OUT_MUTE        0x0200
261 #define PCM_RLF_OUT_BOTH        0x0300
262 #define LINE2_DAC_OUT_LOCAL     0x0000
263 #define LINE2_DAC_OUT_REMOTE    0x0400
264 #define LINE2_DAC_OUT_MUTE      0x0800
265 #define LINE2_DAC_OUT_BOTH      0x0C00
266 #define HANDSET_OUT_LOCAL       0x0000
267 #define HANDSET_OUT_REMOTE      0x1000
268 #define HANDSET_OUT_MUTE        0x2000
269 #define HANDSET_OUT_BOTH        0x3000
270 #define IO_CTRL_OUT_LOCAL       0x0000
271 #define IO_CTRL_OUT_REMOTE      0x4000
272 #define IO_CTRL_OUT_MUTE        0x8000
273 #define IO_CTRL_OUT_BOTH        0xC000
274 
275 #define SDO_IN_DEST_CTRL        0x3C
276 #define STATUS_ADDR_IN          0x0003
277 #define PCM_LR_IN_LOCAL         0x0000
278 #define PCM_LR_IN_REMOTE        0x0004
279 #define PCM_LR_RESERVED         0x0008
280 #define PCM_LR_IN_BOTH          0x000C
281 #define LINE1_ADC_IN_LOCAL      0x0000
282 #define LINE1_ADC_IN_REMOTE     0x0010
283 #define LINE1_ADC_IN_MUTE       0x0020
284 #define MIC_ADC_IN_LOCAL        0x0000
285 #define MIC_ADC_IN_REMOTE       0x0040
286 #define MIC_ADC_IN_MUTE         0x0080
287 #define LINE2_DAC_IN_LOCAL      0x0000
288 #define LINE2_DAC_IN_REMOTE     0x0400
289 #define LINE2_DAC_IN_MUTE       0x0800
290 #define HANDSET_IN_LOCAL        0x0000
291 #define HANDSET_IN_REMOTE       0x1000
292 #define HANDSET_IN_MUTE         0x2000
293 #define IO_STATUS_IN_LOCAL      0x0000
294 #define IO_STATUS_IN_REMOTE     0x4000
295 
296 #define SPDIF_IN_CTRL           0x3E
297 #define SPDIF_IN_ENABLE         0x0001
298 
299 #define GPIO_DATA               0x60
300 #define GPIO_DATA_MASK          0x0FFF
301 #define GPIO_HV_STATUS          0x3000
302 #define GPIO_PME_STATUS         0x4000
303 
304 #define GPIO_MASK               0x64
305 #define GPIO_DIRECTION          0x68
306 #define GPO_PRIMARY_AC97        0x0001
307 #define GPI_LINEOUT_SENSE       0x0004
308 #define GPO_SECONDARY_AC97      0x0008
309 #define GPI_VOL_DOWN            0x0010
310 #define GPI_VOL_UP              0x0020
311 #define GPI_IIS_CLK             0x0040
312 #define GPI_IIS_LRCLK           0x0080
313 #define GPI_IIS_DATA            0x0100
314 #define GPI_DOCKING_STATUS      0x0100
315 #define GPI_HEADPHONE_SENSE     0x0200
316 #define GPO_EXT_AMP_SHUTDOWN    0x1000
317 
318 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
319 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
320 
321 /* M3 */
322 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
323 
324 #define ASSP_INDEX_PORT         0x80
325 #define ASSP_MEMORY_PORT        0x82
326 #define ASSP_DATA_PORT          0x84
327 
328 #define MPU401_DATA_PORT        0x98
329 #define MPU401_STATUS_PORT      0x99
330 
331 #define CLK_MULT_DATA_PORT      0x9C
332 
333 #define ASSP_CONTROL_A          0xA2
334 #define ASSP_0_WS_ENABLE        0x01
335 #define ASSP_CTRL_A_RESERVED1   0x02
336 #define ASSP_CTRL_A_RESERVED2   0x04
337 #define ASSP_CLK_49MHZ_SELECT   0x08
338 #define FAST_PLU_ENABLE         0x10
339 #define ASSP_CTRL_A_RESERVED3   0x20
340 #define DSP_CLK_36MHZ_SELECT    0x40
341 
342 #define ASSP_CONTROL_B          0xA4
343 #define RESET_ASSP              0x00
344 #define RUN_ASSP                0x01
345 #define ENABLE_ASSP_CLOCK       0x00
346 #define STOP_ASSP_CLOCK         0x10
347 #define RESET_TOGGLE            0x40
348 
349 #define ASSP_CONTROL_C          0xA6
350 #define ASSP_HOST_INT_ENABLE    0x01
351 #define FM_ADDR_REMAP_DISABLE   0x02
352 #define HOST_WRITE_PORT_ENABLE  0x08
353 
354 #define ASSP_HOST_INT_STATUS    0xAC
355 #define DSP2HOST_REQ_PIORECORD  0x01
356 #define DSP2HOST_REQ_I2SRATE    0x02
357 #define DSP2HOST_REQ_TIMER      0x04
358 
359 /* AC97 registers */
360 /* XXX fix this crap up */
361 /*#define AC97_RESET              0x00*/
362 
363 #define AC97_VOL_MUTE_B         0x8000
364 #define AC97_VOL_M              0x1F
365 #define AC97_LEFT_VOL_S         8
366 
367 #define AC97_MASTER_VOL         0x02
368 #define AC97_LINE_LEVEL_VOL     0x04
369 #define AC97_MASTER_MONO_VOL    0x06
370 #define AC97_PC_BEEP_VOL        0x0A
371 #define AC97_PC_BEEP_VOL_M      0x0F
372 #define AC97_SROUND_MASTER_VOL  0x38
373 #define AC97_PC_BEEP_VOL_S      1
374 
375 /*#define AC97_PHONE_VOL          0x0C
376 #define AC97_MIC_VOL            0x0E*/
377 #define AC97_MIC_20DB_ENABLE    0x40
378 
379 /*#define AC97_LINEIN_VOL         0x10
380 #define AC97_CD_VOL             0x12
381 #define AC97_VIDEO_VOL          0x14
382 #define AC97_AUX_VOL            0x16*/
383 #define AC97_PCM_OUT_VOL        0x18
384 /*#define AC97_RECORD_SELECT      0x1A*/
385 #define AC97_RECORD_MIC         0x00
386 #define AC97_RECORD_CD          0x01
387 #define AC97_RECORD_VIDEO       0x02
388 #define AC97_RECORD_AUX         0x03
389 #define AC97_RECORD_MONO_MUX    0x02
390 #define AC97_RECORD_DIGITAL     0x03
391 #define AC97_RECORD_LINE        0x04
392 #define AC97_RECORD_STEREO      0x05
393 #define AC97_RECORD_MONO        0x06
394 #define AC97_RECORD_PHONE       0x07
395 
396 /*#define AC97_RECORD_GAIN        0x1C*/
397 #define AC97_RECORD_VOL_M       0x0F
398 
399 /*#define AC97_GENERAL_PURPOSE    0x20*/
400 #define AC97_POWER_DOWN_CTRL    0x26
401 #define AC97_ADC_READY          0x0001
402 #define AC97_DAC_READY          0x0002
403 #define AC97_ANALOG_READY       0x0004
404 #define AC97_VREF_ON            0x0008
405 #define AC97_PR0                0x0100
406 #define AC97_PR1                0x0200
407 #define AC97_PR2                0x0400
408 #define AC97_PR3                0x0800
409 #define AC97_PR4                0x1000
410 
411 #define AC97_RESERVED1          0x28
412 
413 #define AC97_VENDOR_TEST        0x5A
414 
415 #define AC97_CLOCK_DELAY        0x5C
416 #define AC97_LINEOUT_MUX_SEL    0x0001
417 #define AC97_MONO_MUX_SEL       0x0002
418 #define AC97_CLOCK_DELAY_SEL    0x1F
419 #define AC97_DAC_CDS_SHIFT      6
420 #define AC97_ADC_CDS_SHIFT      11
421 
422 #define AC97_MULTI_CHANNEL_SEL  0x74
423 
424 /*#define AC97_VENDOR_ID1         0x7C
425 #define AC97_VENDOR_ID2         0x7E*/
426 
427 /*
428  * ASSP control regs
429  */
430 #define DSP_PORT_TIMER_COUNT    0x06
431 
432 #define DSP_PORT_MEMORY_INDEX   0x80
433 
434 #define DSP_PORT_MEMORY_TYPE    0x82
435 #define MEMTYPE_INTERNAL_CODE   0x0002
436 #define MEMTYPE_INTERNAL_DATA   0x0003
437 #define MEMTYPE_MASK            0x0003
438 
439 #define DSP_PORT_MEMORY_DATA    0x84
440 
441 #define DSP_PORT_CONTROL_REG_A  0xA2
442 #define DSP_PORT_CONTROL_REG_B  0xA4
443 #define DSP_PORT_CONTROL_REG_C  0xA6
444 
445 #define REV_A_CODE_MEMORY_BEGIN         0x0000
446 #define REV_A_CODE_MEMORY_END           0x0FFF
447 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
448 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
449 
450 #define REV_B_CODE_MEMORY_BEGIN         0x0000
451 #define REV_B_CODE_MEMORY_END           0x0BFF
452 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
453 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
454 
455 #define REV_A_DATA_MEMORY_BEGIN         0x1000
456 #define REV_A_DATA_MEMORY_END           0x2FFF
457 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
458 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
459 
460 #define REV_B_DATA_MEMORY_BEGIN         0x1000
461 #define REV_B_DATA_MEMORY_END           0x2BFF
462 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
463 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
464 
465 
466 #define NUM_UNITS_KERNEL_CODE          16
467 #define NUM_UNITS_KERNEL_DATA           2
468 
469 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
470 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
471 
472 /*
473  * Kernel data layout
474  */
475 
476 #define DP_SHIFT_COUNT                  7
477 
478 #define KDATA_BASE_ADDR                 0x1000
479 #define KDATA_BASE_ADDR2                0x1080
480 
481 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
482 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
483 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
484 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
485 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
486 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
487 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
488 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
489 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
490 
491 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
492 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
493 
494 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
495 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
496 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
497 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
498 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
499 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
500 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
501 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
502 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
503 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
504 
505 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
506 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
507 
508 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
509 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
510 
511 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
512 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
513 
514 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
515 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
516 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
517 
518 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
519 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
520 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
521 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
522 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
523 
524 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
525 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
526 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
527 
528 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
529 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
530 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
531 
532 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
533 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
534 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
535 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
536 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
537 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
538 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
539 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
540 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
541 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
542 
543 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
544 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
545 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
546 
547 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
548 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
549 
550 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
551 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
552 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
553 
554 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
555 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
556 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
557 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
558 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
559 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
560 
561 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
562 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
563 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
564 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
565 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
566 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
567 
568 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
569 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
570 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
571 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
572 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
573 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
574 
575 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
576 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
577 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
578 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
579 
580 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
581 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
582 
583 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
584 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
585 
586 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
587 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
588 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
589 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
590 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
591 
592 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
593 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
594 
595 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
596 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
597 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
598 
599 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
600 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
601 
602 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
603 
604 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
605 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
606 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
607 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
608 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
609 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
610 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
611 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
612 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
613 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
614 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
615 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
616 
617 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
618 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
619 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
620 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
621 
622 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
623 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
624 
625 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
626 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
627 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
628 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
629 
630 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
631 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
632 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
633 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
634 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
635 
636 /*
637  * second 'segment' (?) reserved for mixer
638  * buffers..
639  */
640 
641 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
642 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
643 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
644 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
645 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
646 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
647 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
648 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
649 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
650 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
651 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
652 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
653 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
654 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
655 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
656 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
657 
658 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
659 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
660 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
661 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
662 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
663 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
664 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
665 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
666 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
667 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
668 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
669 
670 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
671 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
672 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
673 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
674 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
675 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
676 
677 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
678 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
679 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
680 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
681 
682 /*
683  * client data area offsets
684  */
685 #define CDATA_INSTANCE_READY            0x00
686 
687 #define CDATA_HOST_SRC_ADDRL            0x01
688 #define CDATA_HOST_SRC_ADDRH            0x02
689 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
690 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
691 #define CDATA_HOST_SRC_CURRENTL         0x05
692 #define CDATA_HOST_SRC_CURRENTH         0x06
693 
694 #define CDATA_IN_BUF_CONNECT            0x07
695 #define CDATA_OUT_BUF_CONNECT           0x08
696 
697 #define CDATA_IN_BUF_BEGIN              0x09
698 #define CDATA_IN_BUF_END_PLUS_1         0x0A
699 #define CDATA_IN_BUF_HEAD               0x0B
700 #define CDATA_IN_BUF_TAIL               0x0C
701 #define CDATA_OUT_BUF_BEGIN             0x0D
702 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
703 #define CDATA_OUT_BUF_HEAD              0x0F
704 #define CDATA_OUT_BUF_TAIL              0x10
705 
706 #define CDATA_DMA_CONTROL               0x11
707 #define CDATA_RESERVED                  0x12
708 
709 #define CDATA_FREQUENCY                 0x13
710 #define CDATA_LEFT_VOLUME               0x14
711 #define CDATA_RIGHT_VOLUME              0x15
712 #define CDATA_LEFT_SUR_VOL              0x16
713 #define CDATA_RIGHT_SUR_VOL             0x17
714 
715 #define CDATA_HEADER_LEN                0x18
716 
717 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
718 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
719 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
720 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
721 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
722 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
723 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
724 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
725 
726 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
727 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
728 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
729 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
730 #define MINISRC_BIQUAD_STAGE    2
731 #define MINISRC_COEF_LOC          0x175
732 
733 #define DMACONTROL_BLOCK_MASK           0x000F
734 #define  DMAC_BLOCK0_SELECTOR           0x0000
735 #define  DMAC_BLOCK1_SELECTOR           0x0001
736 #define  DMAC_BLOCK2_SELECTOR           0x0002
737 #define  DMAC_BLOCK3_SELECTOR           0x0003
738 #define  DMAC_BLOCK4_SELECTOR           0x0004
739 #define  DMAC_BLOCK5_SELECTOR           0x0005
740 #define  DMAC_BLOCK6_SELECTOR           0x0006
741 #define  DMAC_BLOCK7_SELECTOR           0x0007
742 #define  DMAC_BLOCK8_SELECTOR           0x0008
743 #define  DMAC_BLOCK9_SELECTOR           0x0009
744 #define  DMAC_BLOCKA_SELECTOR           0x000A
745 #define  DMAC_BLOCKB_SELECTOR           0x000B
746 #define  DMAC_BLOCKC_SELECTOR           0x000C
747 #define  DMAC_BLOCKD_SELECTOR           0x000D
748 #define  DMAC_BLOCKE_SELECTOR           0x000E
749 #define  DMAC_BLOCKF_SELECTOR           0x000F
750 #define DMACONTROL_PAGE_MASK            0x00F0
751 #define  DMAC_PAGE0_SELECTOR            0x0030
752 #define  DMAC_PAGE1_SELECTOR            0x0020
753 #define  DMAC_PAGE2_SELECTOR            0x0010
754 #define  DMAC_PAGE3_SELECTOR            0x0000
755 #define DMACONTROL_AUTOREPEAT           0x1000
756 #define DMACONTROL_STOPPED              0x2000
757 #define DMACONTROL_DIRECTION            0x0100
758 
759 /*
760  * an arbitrary volume we set the internal
761  * volume settings to so that the ac97 volume
762  * range is a little less insane.  0x7fff is
763  * max.
764  */
765 #define ARB_VOLUME ( 0x6800 )
766 
767 /*
768  */
769 
770 typedef struct snd_m3_dma m3_dma_t;
771 typedef struct snd_m3 m3_t;
772 
773 /* quirk lists */
774 struct m3_quirk {
775 	const char *name;	/* device name */
776 	u16 vendor, device;	/* subsystem ids */
777 	int amp_gpio;		/* gpio pin #  for external amp, -1 = default */
778 	int irda_workaround;	/* non-zero if avoid to touch 0x10 on GPIO_DIRECTION
779 				   (e.g. for IrDA on Dell Inspirons) */
780 };
781 
782 struct m3_hv_quirk {
783 	u16 vendor, device, subsystem_vendor, subsystem_device;
784 	u32 config;		/* ALLEGRO_CONFIG hardware volume bits */
785 	int is_omnibook;	/* Do HP OmniBook GPIO magic? */
786 };
787 
788 struct m3_list {
789 	int curlen;
790 	int mem_addr;
791 	int max;
792 };
793 
794 struct snd_m3_dma {
795 
796 	int number;
797 	m3_t *chip;
798 	snd_pcm_substream_t *substream;
799 
800 	struct assp_instance {
801 		unsigned short code, data;
802 	} inst;
803 
804 	int running;
805 	int opened;
806 
807 	unsigned long buffer_addr;
808 	int dma_size;
809 	int period_size;
810 	unsigned int hwptr;
811 	int count;
812 
813 	int index[3];
814 	struct m3_list *index_list[3];
815 
816         int in_lists;
817 
818 	struct list_head list;
819 
820 };
821 
822 struct snd_m3 {
823 
824 	snd_card_t *card;
825 
826 	unsigned long iobase;
827 
828 	int irq;
829 	unsigned int allegro_flag : 1;
830 
831 	ac97_t *ac97;
832 
833 	snd_pcm_t *pcm;
834 
835 	struct pci_dev *pci;
836 	struct m3_quirk *quirk;
837 	struct m3_hv_quirk *hv_quirk;
838 
839 	int dacs_active;
840 	int timer_users;
841 
842 	struct m3_list  msrc_list;
843 	struct m3_list  mixer_list;
844 	struct m3_list  adc1_list;
845 	struct m3_list  dma_list;
846 
847 	/* for storing reset state..*/
848 	u8 reset_state;
849 
850 	int external_amp;
851 	int amp_gpio;
852 
853 	/* midi */
854 	snd_rawmidi_t *rmidi;
855 
856 	/* pcm streams */
857 	int num_substreams;
858 	m3_dma_t *substreams;
859 
860 	spinlock_t reg_lock;
861 	spinlock_t ac97_lock;
862 
863 	snd_kcontrol_t *master_switch;
864 	snd_kcontrol_t *master_volume;
865 	struct tasklet_struct hwvol_tq;
866 
867 #ifdef CONFIG_PM
868 	u16 *suspend_mem;
869 #endif
870 };
871 
872 /*
873  * pci ids
874  */
875 
876 #ifndef PCI_VENDOR_ID_ESS
877 #define PCI_VENDOR_ID_ESS         0x125D
878 #endif
879 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO_1
880 #define PCI_DEVICE_ID_ESS_ALLEGRO_1	0x1988
881 #endif
882 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO
883 #define PCI_DEVICE_ID_ESS_ALLEGRO	0x1989
884 #endif
885 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2LE
886 #define PCI_DEVICE_ID_ESS_CANYON3D_2LE	0x1990
887 #endif
888 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2
889 #define PCI_DEVICE_ID_ESS_CANYON3D_2	0x1992
890 #endif
891 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3
892 #define PCI_DEVICE_ID_ESS_MAESTRO3	0x1998
893 #endif
894 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_1
895 #define PCI_DEVICE_ID_ESS_MAESTRO3_1	0x1999
896 #endif
897 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_HW
898 #define PCI_DEVICE_ID_ESS_MAESTRO3_HW	0x199a
899 #endif
900 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_2
901 #define PCI_DEVICE_ID_ESS_MAESTRO3_2	0x199b
902 #endif
903 
904 static struct pci_device_id snd_m3_ids[] = {
905 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
906 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
907 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
908 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
909 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
910 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
911 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
912 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
913 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
914 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
915 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
916 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
917 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
918 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
919 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
920 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
921 	{0,},
922 };
923 
924 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
925 
926 static struct m3_quirk m3_quirk_list[] = {
927 	/* panasonic CF-28 "toughbook" */
928 	{
929 		.name = "Panasonic CF-28",
930 		.vendor = 0x10f7,
931 		.device = 0x833e,
932 		.amp_gpio = 0x0d,
933 	},
934 	/* panasonic CF-72 "toughbook" */
935 	{
936 		.name = "Panasonic CF-72",
937 		.vendor = 0x10f7,
938 		.device = 0x833d,
939 		.amp_gpio = 0x0d,
940 	},
941 	/* Dell Inspiron 4000 */
942 	{
943 		.name = "Dell Inspiron 4000",
944 		.vendor = 0x1028,
945 		.device = 0x00b0,
946 		.amp_gpio = -1,
947 		.irda_workaround = 1,
948 	},
949 	/* Dell Inspiron 8000 */
950 	{
951 		.name = "Dell Inspiron 8000",
952 		.vendor = 0x1028,
953 		.device = 0x00a4,
954 		.amp_gpio = -1,
955 		.irda_workaround = 1,
956 	},
957 	/* Dell Inspiron 8100 */
958 	{
959 		.name = "Dell Inspiron 8100",
960 		.vendor = 0x1028,
961 		.device = 0x00e6,
962 		.amp_gpio = -1,
963 		.irda_workaround = 1,
964 	},
965 	/* NEC LM800J/7 */
966 	{
967 		.name = "NEC LM800J/7",
968 		.vendor = 0x1033,
969 		.device = 0x80f1,
970 		.amp_gpio = 0x03,
971 	},
972 	/* LEGEND ZhaoYang 3100CF */
973 	{
974 		.name = "LEGEND ZhaoYang 3100CF",
975 		.vendor = 0x1509,
976 		.device = 0x1740,
977 		.amp_gpio = 0x03,
978 	},
979 	/* END */
980 	{ NULL }
981 };
982 
983 /* These values came from the Windows driver. */
984 static struct m3_hv_quirk m3_hv_quirk_list[] = {
985 	/* Allegro chips */
986 	{ 0x125D, 0x1988, 0x0E11, 0x002E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
987 	{ 0x125D, 0x1988, 0x0E11, 0x0094, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
988 	{ 0x125D, 0x1988, 0x0E11, 0xB112, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
989 	{ 0x125D, 0x1988, 0x0E11, 0xB114, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
990 	{ 0x125D, 0x1988, 0x103C, 0x0012, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
991 	{ 0x125D, 0x1988, 0x103C, 0x0018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
992 	{ 0x125D, 0x1988, 0x103C, 0x001C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
993 	{ 0x125D, 0x1988, 0x103C, 0x001D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
994 	{ 0x125D, 0x1988, 0x103C, 0x001E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
995 	{ 0x125D, 0x1988, 0x107B, 0x3350, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
996 	{ 0x125D, 0x1988, 0x10F7, 0x8338, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
997 	{ 0x125D, 0x1988, 0x10F7, 0x833C, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
998 	{ 0x125D, 0x1988, 0x10F7, 0x833D, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
999 	{ 0x125D, 0x1988, 0x10F7, 0x833E, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1000 	{ 0x125D, 0x1988, 0x10F7, 0x833F, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1001 	{ 0x125D, 0x1988, 0x13BD, 0x1018, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1002 	{ 0x125D, 0x1988, 0x13BD, 0x1019, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1003 	{ 0x125D, 0x1988, 0x13BD, 0x101A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1004 	{ 0x125D, 0x1988, 0x14FF, 0x0F03, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1005 	{ 0x125D, 0x1988, 0x14FF, 0x0F04, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1006 	{ 0x125D, 0x1988, 0x14FF, 0x0F05, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1007 	{ 0x125D, 0x1988, 0x156D, 0xB400, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1008 	{ 0x125D, 0x1988, 0x156D, 0xB795, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1009 	{ 0x125D, 0x1988, 0x156D, 0xB797, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1010 	{ 0x125D, 0x1988, 0x156D, 0xC700, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD, 0 },
1011 	{ 0x125D, 0x1988, 0x1033, 0x80F1, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1012 	{ 0x125D, 0x1988, 0x103C, 0x001A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 }, /* HP OmniBook 6100 */
1013 	{ 0x125D, 0x1988, 0x107B, 0x340A, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1014 	{ 0x125D, 0x1988, 0x107B, 0x3450, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1015 	{ 0x125D, 0x1988, 0x109F, 0x3134, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1016 	{ 0x125D, 0x1988, 0x109F, 0x3161, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1017 	{ 0x125D, 0x1988, 0x144D, 0x3280, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1018 	{ 0x125D, 0x1988, 0x144D, 0x3281, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1019 	{ 0x125D, 0x1988, 0x144D, 0xC002, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1020 	{ 0x125D, 0x1988, 0x144D, 0xC003, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1021 	{ 0x125D, 0x1988, 0x1509, 0x1740, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1022 	{ 0x125D, 0x1988, 0x1610, 0x0010, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE, 0 },
1023 	{ 0x125D, 0x1988, 0x1042, 0x1042, HV_CTRL_ENABLE, 0 },
1024 	{ 0x125D, 0x1988, 0x107B, 0x9500, HV_CTRL_ENABLE, 0 },
1025 	{ 0x125D, 0x1988, 0x14FF, 0x0F06, HV_CTRL_ENABLE, 0 },
1026 	{ 0x125D, 0x1988, 0x1558, 0x8586, HV_CTRL_ENABLE, 0 },
1027 	{ 0x125D, 0x1988, 0x161F, 0x2011, HV_CTRL_ENABLE, 0 },
1028 	/* Maestro3 chips */
1029 	{ 0x125D, 0x1998, 0x103C, 0x000E, HV_CTRL_ENABLE, 0 },
1030 	{ 0x125D, 0x1998, 0x103C, 0x0010, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 6000 */
1031 	{ 0x125D, 0x1998, 0x103C, 0x0011, HV_CTRL_ENABLE, 1 }, /* HP OmniBook 500 */
1032 	{ 0x125D, 0x1998, 0x103C, 0x001B, HV_CTRL_ENABLE, 0 },
1033 	{ 0x125D, 0x1998, 0x104D, 0x80A6, HV_CTRL_ENABLE, 0 },
1034 	{ 0x125D, 0x1998, 0x104D, 0x80AA, HV_CTRL_ENABLE, 0 },
1035 	{ 0x125D, 0x1998, 0x107B, 0x5300, HV_CTRL_ENABLE, 0 },
1036 	{ 0x125D, 0x1998, 0x110A, 0x1998, HV_CTRL_ENABLE, 0 },
1037 	{ 0x125D, 0x1998, 0x13BD, 0x1015, HV_CTRL_ENABLE, 0 },
1038 	{ 0x125D, 0x1998, 0x13BD, 0x101C, HV_CTRL_ENABLE, 0 },
1039 	{ 0x125D, 0x1998, 0x13BD, 0x1802, HV_CTRL_ENABLE, 0 },
1040 	{ 0x125D, 0x1998, 0x1599, 0x0715, HV_CTRL_ENABLE, 0 },
1041 	{ 0x125D, 0x1998, 0x5643, 0x5643, HV_CTRL_ENABLE, 0 },
1042 	{ 0x125D, 0x199A, 0x144D, 0x3260, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1043 	{ 0x125D, 0x199A, 0x144D, 0x3261, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1044 	{ 0x125D, 0x199A, 0x144D, 0xC000, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1045 	{ 0x125D, 0x199A, 0x144D, 0xC001, HV_CTRL_ENABLE | REDUCED_DEBOUNCE, 0 },
1046 	{ 0 }
1047 };
1048 
1049 /*
1050  * lowlevel functions
1051  */
1052 
1053 #define big_mdelay(msec) do {\
1054 	set_current_state(TASK_UNINTERRUPTIBLE);\
1055 	schedule_timeout(((msec) * HZ) / 1000);\
1056 } while (0)
1057 
1058 inline static void snd_m3_outw(m3_t *chip, u16 value, unsigned long reg)
1059 {
1060 	outw(value, chip->iobase + reg);
1061 }
1062 
1063 inline static u16 snd_m3_inw(m3_t *chip, unsigned long reg)
1064 {
1065 	return inw(chip->iobase + reg);
1066 }
1067 
1068 inline static void snd_m3_outb(m3_t *chip, u8 value, unsigned long reg)
1069 {
1070 	outb(value, chip->iobase + reg);
1071 }
1072 
1073 inline static u8 snd_m3_inb(m3_t *chip, unsigned long reg)
1074 {
1075 	return inb(chip->iobase + reg);
1076 }
1077 
1078 /*
1079  * access 16bit words to the code or data regions of the dsp's memory.
1080  * index addresses 16bit words.
1081  */
1082 static u16 snd_m3_assp_read(m3_t *chip, u16 region, u16 index)
1083 {
1084 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1085 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1086 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1087 }
1088 
1089 static void snd_m3_assp_write(m3_t *chip, u16 region, u16 index, u16 data)
1090 {
1091 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1092 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1093 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1094 }
1095 
1096 static void snd_m3_assp_halt(m3_t *chip)
1097 {
1098 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1099 	big_mdelay(10);
1100 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1101 }
1102 
1103 static void snd_m3_assp_continue(m3_t *chip)
1104 {
1105 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1106 }
1107 
1108 
1109 /*
1110  * This makes me sad. the maestro3 has lists
1111  * internally that must be packed.. 0 terminates,
1112  * apparently, or maybe all unused entries have
1113  * to be 0, the lists have static lengths set
1114  * by the binary code images.
1115  */
1116 
1117 static int snd_m3_add_list(m3_t *chip, struct m3_list *list, u16 val)
1118 {
1119 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1120 			  list->mem_addr + list->curlen,
1121 			  val);
1122 	return list->curlen++;
1123 }
1124 
1125 static void snd_m3_remove_list(m3_t *chip, struct m3_list *list, int index)
1126 {
1127 	u16  val;
1128 	int lastindex = list->curlen - 1;
1129 
1130 	if (index != lastindex) {
1131 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1132 				       list->mem_addr + lastindex);
1133 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1134 				  list->mem_addr + index,
1135 				  val);
1136 	}
1137 
1138 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1139 			  list->mem_addr + lastindex,
1140 			  0);
1141 
1142 	list->curlen--;
1143 }
1144 
1145 static void snd_m3_inc_timer_users(m3_t *chip)
1146 {
1147 	chip->timer_users++;
1148 	if (chip->timer_users != 1)
1149 		return;
1150 
1151 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1152 			  KDATA_TIMER_COUNT_RELOAD,
1153 			  240);
1154 
1155 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1156 			  KDATA_TIMER_COUNT_CURRENT,
1157 			  240);
1158 
1159 	snd_m3_outw(chip,
1160 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1161 		    HOST_INT_CTRL);
1162 }
1163 
1164 static void snd_m3_dec_timer_users(m3_t *chip)
1165 {
1166 	chip->timer_users--;
1167 	if (chip->timer_users > 0)
1168 		return;
1169 
1170 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1171 			  KDATA_TIMER_COUNT_RELOAD,
1172 			  0);
1173 
1174 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1175 			  KDATA_TIMER_COUNT_CURRENT,
1176 			  0);
1177 
1178 	snd_m3_outw(chip,
1179 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1180 		    HOST_INT_CTRL);
1181 }
1182 
1183 /*
1184  * start/stop
1185  */
1186 
1187 /* spinlock held! */
1188 static int snd_m3_pcm_start(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1189 {
1190 	if (! s || ! subs)
1191 		return -EINVAL;
1192 
1193 	snd_m3_inc_timer_users(chip);
1194 	switch (subs->stream) {
1195 	case SNDRV_PCM_STREAM_PLAYBACK:
1196 		chip->dacs_active++;
1197 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1198 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1199 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1200 				  KDATA_MIXER_TASK_NUMBER,
1201 				  chip->dacs_active);
1202 		break;
1203 	case SNDRV_PCM_STREAM_CAPTURE:
1204 		snd_m3_assp_write(s->chip, MEMTYPE_INTERNAL_DATA,
1205 				  KDATA_ADC1_REQUEST, 1);
1206 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1207 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1208 		break;
1209 	}
1210 	return 0;
1211 }
1212 
1213 /* spinlock held! */
1214 static int snd_m3_pcm_stop(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1215 {
1216 	if (! s || ! subs)
1217 		return -EINVAL;
1218 
1219 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1220 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1221 	snd_m3_dec_timer_users(chip);
1222 	switch (subs->stream) {
1223 	case SNDRV_PCM_STREAM_PLAYBACK:
1224 		chip->dacs_active--;
1225 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1226 				  KDATA_MIXER_TASK_NUMBER,
1227 				  chip->dacs_active);
1228 		break;
1229 	case SNDRV_PCM_STREAM_CAPTURE:
1230 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1231 				  KDATA_ADC1_REQUEST, 0);
1232 		break;
1233 	}
1234 	return 0;
1235 }
1236 
1237 static int
1238 snd_m3_pcm_trigger(snd_pcm_substream_t *subs, int cmd)
1239 {
1240 	m3_t *chip = snd_pcm_substream_chip(subs);
1241 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1242 	int err = -EINVAL;
1243 
1244 	snd_assert(s != NULL, return -ENXIO);
1245 
1246 	spin_lock(&chip->reg_lock);
1247 	switch (cmd) {
1248 	case SNDRV_PCM_TRIGGER_START:
1249 	case SNDRV_PCM_TRIGGER_RESUME:
1250 		if (s->running)
1251 			err = -EBUSY;
1252 		else {
1253 			s->running = 1;
1254 			err = snd_m3_pcm_start(chip, s, subs);
1255 		}
1256 		break;
1257 	case SNDRV_PCM_TRIGGER_STOP:
1258 	case SNDRV_PCM_TRIGGER_SUSPEND:
1259 		if (! s->running)
1260 			err = 0; /* should return error? */
1261 		else {
1262 			s->running = 0;
1263 			err = snd_m3_pcm_stop(chip, s, subs);
1264 		}
1265 		break;
1266 	}
1267 	spin_unlock(&chip->reg_lock);
1268 	return err;
1269 }
1270 
1271 /*
1272  * setup
1273  */
1274 static void
1275 snd_m3_pcm_setup1(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1276 {
1277 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1278 	snd_pcm_runtime_t *runtime = subs->runtime;
1279 
1280 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1281 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1282 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1283 	} else {
1284 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1285 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1286 	}
1287 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1288 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1289 
1290 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1291 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1292 	s->hwptr = 0;
1293 	s->count = 0;
1294 
1295 #define LO(x) ((x) & 0xffff)
1296 #define HI(x) LO((x) >> 16)
1297 
1298 	/* host dma buffer pointers */
1299 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1300 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1301 			  LO(s->buffer_addr));
1302 
1303 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1304 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1305 			  HI(s->buffer_addr));
1306 
1307 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1308 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1309 			  LO(s->buffer_addr + s->dma_size));
1310 
1311 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1312 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1313 			  HI(s->buffer_addr + s->dma_size));
1314 
1315 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1316 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1317 			  LO(s->buffer_addr));
1318 
1319 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1320 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1321 			  HI(s->buffer_addr));
1322 #undef LO
1323 #undef HI
1324 
1325 	/* dsp buffers */
1326 
1327 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1328 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1329 			  dsp_in_buffer);
1330 
1331 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1332 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1333 			  dsp_in_buffer + (dsp_in_size / 2));
1334 
1335 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1336 			  s->inst.data + CDATA_IN_BUF_HEAD,
1337 			  dsp_in_buffer);
1338 
1339 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1340 			  s->inst.data + CDATA_IN_BUF_TAIL,
1341 			  dsp_in_buffer);
1342 
1343 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1344 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1345 			  dsp_out_buffer);
1346 
1347 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1348 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1349 			  dsp_out_buffer + (dsp_out_size / 2));
1350 
1351 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1352 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1353 			  dsp_out_buffer);
1354 
1355 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1356 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1357 			  dsp_out_buffer);
1358 }
1359 
1360 static void snd_m3_pcm_setup2(m3_t *chip, m3_dma_t *s, snd_pcm_runtime_t *runtime)
1361 {
1362 	u32 freq;
1363 
1364 	/*
1365 	 * put us in the lists if we're not already there
1366 	 */
1367 	if (! s->in_lists) {
1368 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1369 					      s->inst.data >> DP_SHIFT_COUNT);
1370 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1371 					      s->inst.data >> DP_SHIFT_COUNT);
1372 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1373 					      s->inst.data >> DP_SHIFT_COUNT);
1374 		s->in_lists = 1;
1375 	}
1376 
1377 	/* write to 'mono' word */
1378 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1379 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1380 			  runtime->channels == 2 ? 0 : 1);
1381 	/* write to '8bit' word */
1382 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1383 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1384 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1385 
1386 	/* set up dac/adc rate */
1387 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1388 	if (freq)
1389 		freq--;
1390 
1391 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1392 			  s->inst.data + CDATA_FREQUENCY,
1393 			  freq);
1394 }
1395 
1396 
1397 static struct play_vals {
1398 	u16 addr, val;
1399 } pv[] = {
1400 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1401 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1402 	{SRC3_DIRECTION_OFFSET, 0} ,
1403 	/* +1, +2 are stereo/16 bit */
1404 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1405 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1406 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1407 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1408 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1409 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1410 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1411 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1412 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1413 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1414 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1415 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1416 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1417 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1418 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1419 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1420 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1421 };
1422 
1423 
1424 /* the mode passed should be already shifted and masked */
1425 static void
1426 snd_m3_playback_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1427 {
1428 	unsigned int i;
1429 
1430 	/*
1431 	 * some per client initializers
1432 	 */
1433 
1434 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1435 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1436 			  s->inst.data + 40 + 8);
1437 
1438 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1439 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1440 			  s->inst.code + MINISRC_COEF_LOC);
1441 
1442 	/* enable or disable low pass filter? */
1443 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1444 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1445 			  subs->runtime->rate > 45000 ? 0xff : 0);
1446 
1447 	/* tell it which way dma is going? */
1448 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1449 			  s->inst.data + CDATA_DMA_CONTROL,
1450 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1451 
1452 	/*
1453 	 * set an armload of static initializers
1454 	 */
1455 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1456 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1457 				  s->inst.data + pv[i].addr, pv[i].val);
1458 }
1459 
1460 /*
1461  *    Native record driver
1462  */
1463 static struct rec_vals {
1464 	u16 addr, val;
1465 } rv[] = {
1466 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1467 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1468 	{SRC3_DIRECTION_OFFSET, 1} ,
1469 	/* +1, +2 are stereo/16 bit */
1470 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1471 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1472 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1473 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1474 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1475 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1476 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1477 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1478 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1479 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1480 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1481 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1482 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1483 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1484 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1485 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1486 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1487 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1488 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1489 };
1490 
1491 static void
1492 snd_m3_capture_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1493 {
1494 	unsigned int i;
1495 
1496 	/*
1497 	 * some per client initializers
1498 	 */
1499 
1500 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1501 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1502 			  s->inst.data + 40 + 8);
1503 
1504 	/* tell it which way dma is going? */
1505 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1506 			  s->inst.data + CDATA_DMA_CONTROL,
1507 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1508 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1509 
1510 	/*
1511 	 * set an armload of static initializers
1512 	 */
1513 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1514 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1515 				  s->inst.data + rv[i].addr, rv[i].val);
1516 }
1517 
1518 static int snd_m3_pcm_hw_params(snd_pcm_substream_t * substream,
1519 				snd_pcm_hw_params_t * hw_params)
1520 {
1521 	m3_dma_t *s = (m3_dma_t*) substream->runtime->private_data;
1522 	int err;
1523 
1524 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1525 		return err;
1526 	/* set buffer address */
1527 	s->buffer_addr = substream->runtime->dma_addr;
1528 	if (s->buffer_addr & 0x3) {
1529 		snd_printk("oh my, not aligned\n");
1530 		s->buffer_addr = s->buffer_addr & ~0x3;
1531 	}
1532 	return 0;
1533 }
1534 
1535 static int snd_m3_pcm_hw_free(snd_pcm_substream_t * substream)
1536 {
1537 	m3_dma_t *s;
1538 
1539 	if (substream->runtime->private_data == NULL)
1540 		return 0;
1541 	s = (m3_dma_t*) substream->runtime->private_data;
1542 	snd_pcm_lib_free_pages(substream);
1543 	s->buffer_addr = 0;
1544 	return 0;
1545 }
1546 
1547 static int
1548 snd_m3_pcm_prepare(snd_pcm_substream_t *subs)
1549 {
1550 	m3_t *chip = snd_pcm_substream_chip(subs);
1551 	snd_pcm_runtime_t *runtime = subs->runtime;
1552 	m3_dma_t *s = (m3_dma_t*)runtime->private_data;
1553 
1554 	snd_assert(s != NULL, return -ENXIO);
1555 
1556 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1557 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1558 		return -EINVAL;
1559 	if (runtime->rate > 48000 ||
1560 	    runtime->rate < 8000)
1561 		return -EINVAL;
1562 
1563 	spin_lock_irq(&chip->reg_lock);
1564 
1565 	snd_m3_pcm_setup1(chip, s, subs);
1566 
1567 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1568 		snd_m3_playback_setup(chip, s, subs);
1569 	else
1570 		snd_m3_capture_setup(chip, s, subs);
1571 
1572 	snd_m3_pcm_setup2(chip, s, runtime);
1573 
1574 	spin_unlock_irq(&chip->reg_lock);
1575 
1576 	return 0;
1577 }
1578 
1579 /*
1580  * get current pointer
1581  */
1582 static unsigned int
1583 snd_m3_get_pointer(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1584 {
1585 	u16 hi = 0, lo = 0;
1586 	int retry = 10;
1587 	u32 addr;
1588 
1589 	/*
1590 	 * try and get a valid answer
1591 	 */
1592 	while (retry--) {
1593 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1594 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1595 
1596 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1597 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1598 
1599 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1600 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1601 			break;
1602 	}
1603 	addr = lo | ((u32)hi<<16);
1604 	return (unsigned int)(addr - s->buffer_addr);
1605 }
1606 
1607 static snd_pcm_uframes_t
1608 snd_m3_pcm_pointer(snd_pcm_substream_t * subs)
1609 {
1610 	m3_t *chip = snd_pcm_substream_chip(subs);
1611 	unsigned int ptr;
1612 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1613 	snd_assert(s != NULL, return 0);
1614 
1615 	spin_lock(&chip->reg_lock);
1616 	ptr = snd_m3_get_pointer(chip, s, subs);
1617 	spin_unlock(&chip->reg_lock);
1618 	return bytes_to_frames(subs->runtime, ptr);
1619 }
1620 
1621 
1622 /* update pointer */
1623 /* spinlock held! */
1624 static void snd_m3_update_ptr(m3_t *chip, m3_dma_t *s)
1625 {
1626 	snd_pcm_substream_t *subs = s->substream;
1627 	unsigned int hwptr;
1628 	int diff;
1629 
1630 	if (! s->running)
1631 		return;
1632 
1633 	hwptr = snd_m3_get_pointer(chip, s, subs) % s->dma_size;
1634 	diff = (s->dma_size + hwptr - s->hwptr) % s->dma_size;
1635 	s->hwptr = hwptr;
1636 	s->count += diff;
1637 	if (s->count >= (signed)s->period_size) {
1638 		s->count %= s->period_size;
1639 		spin_unlock(&chip->reg_lock);
1640 		snd_pcm_period_elapsed(subs);
1641 		spin_lock(&chip->reg_lock);
1642 	}
1643 }
1644 
1645 static void snd_m3_update_hw_volume(unsigned long private_data)
1646 {
1647 	m3_t *chip = (m3_t *) private_data;
1648 	int x, val;
1649 	unsigned long flags;
1650 
1651 	/* Figure out which volume control button was pushed,
1652 	   based on differences from the default register
1653 	   values. */
1654 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1655 
1656 	/* Reset the volume control registers. */
1657 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1658 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1659 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1660 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1661 
1662 	if (!chip->master_switch || !chip->master_volume)
1663 		return;
1664 
1665 	/* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
1666 	spin_lock_irqsave(&chip->ac97_lock, flags);
1667 
1668 	val = chip->ac97->regs[AC97_MASTER_VOL];
1669 	switch (x) {
1670 	case 0x88:
1671 		/* mute */
1672 		val ^= 0x8000;
1673 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1674 		outw(val, chip->iobase + CODEC_DATA);
1675 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1676 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1677 			       &chip->master_switch->id);
1678 		break;
1679 	case 0xaa:
1680 		/* volume up */
1681 		if ((val & 0x7f) > 0)
1682 			val--;
1683 		if ((val & 0x7f00) > 0)
1684 			val -= 0x0100;
1685 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1686 		outw(val, chip->iobase + CODEC_DATA);
1687 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1688 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1689 			       &chip->master_volume->id);
1690 		break;
1691 	case 0x66:
1692 		/* volume down */
1693 		if ((val & 0x7f) < 0x1f)
1694 			val++;
1695 		if ((val & 0x7f00) < 0x1f00)
1696 			val += 0x0100;
1697 		chip->ac97->regs[AC97_MASTER_VOL] = val;
1698 		outw(val, chip->iobase + CODEC_DATA);
1699 		outb(AC97_MASTER_VOL, chip->iobase + CODEC_COMMAND);
1700 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1701 			       &chip->master_volume->id);
1702 		break;
1703 	}
1704 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1705 }
1706 
1707 static irqreturn_t
1708 snd_m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1709 {
1710 	m3_t *chip = dev_id;
1711 	u8 status;
1712 	int i;
1713 
1714 	status = inb(chip->iobase + HOST_INT_STATUS);
1715 
1716 	if (status == 0xff)
1717 		return IRQ_NONE;
1718 
1719 	if (status & HV_INT_PENDING)
1720 		tasklet_hi_schedule(&chip->hwvol_tq);
1721 
1722 	/*
1723 	 * ack an assp int if its running
1724 	 * and has an int pending
1725 	 */
1726 	if (status & ASSP_INT_PENDING) {
1727 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1728 		if (!(ctl & STOP_ASSP_CLOCK)) {
1729 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1730 			if (ctl & DSP2HOST_REQ_TIMER) {
1731 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1732 				/* update adc/dac info if it was a timer int */
1733 				spin_lock(&chip->reg_lock);
1734 				for (i = 0; i < chip->num_substreams; i++) {
1735 					m3_dma_t *s = &chip->substreams[i];
1736 					if (s->running)
1737 						snd_m3_update_ptr(chip, s);
1738 				}
1739 				spin_unlock(&chip->reg_lock);
1740 			}
1741 		}
1742 	}
1743 
1744 #if 0 /* TODO: not supported yet */
1745 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1746 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1747 #endif
1748 
1749 	/* ack ints */
1750 	outb(status, chip->iobase + HOST_INT_STATUS);
1751 
1752 	return IRQ_HANDLED;
1753 }
1754 
1755 
1756 /*
1757  */
1758 
1759 static snd_pcm_hardware_t snd_m3_playback =
1760 {
1761 	.info =			(SNDRV_PCM_INFO_MMAP |
1762 				 SNDRV_PCM_INFO_INTERLEAVED |
1763 				 SNDRV_PCM_INFO_MMAP_VALID |
1764 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1765 				 /*SNDRV_PCM_INFO_PAUSE |*/
1766 				 SNDRV_PCM_INFO_RESUME),
1767 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1768 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1769 	.rate_min =		8000,
1770 	.rate_max =		48000,
1771 	.channels_min =		1,
1772 	.channels_max =		2,
1773 	.buffer_bytes_max =	(512*1024),
1774 	.period_bytes_min =	64,
1775 	.period_bytes_max =	(512*1024),
1776 	.periods_min =		1,
1777 	.periods_max =		1024,
1778 };
1779 
1780 static snd_pcm_hardware_t snd_m3_capture =
1781 {
1782 	.info =			(SNDRV_PCM_INFO_MMAP |
1783 				 SNDRV_PCM_INFO_INTERLEAVED |
1784 				 SNDRV_PCM_INFO_MMAP_VALID |
1785 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1786 				 /*SNDRV_PCM_INFO_PAUSE |*/
1787 				 SNDRV_PCM_INFO_RESUME),
1788 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1789 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1790 	.rate_min =		8000,
1791 	.rate_max =		48000,
1792 	.channels_min =		1,
1793 	.channels_max =		2,
1794 	.buffer_bytes_max =	(512*1024),
1795 	.period_bytes_min =	64,
1796 	.period_bytes_max =	(512*1024),
1797 	.periods_min =		1,
1798 	.periods_max =		1024,
1799 };
1800 
1801 
1802 /*
1803  */
1804 
1805 static int
1806 snd_m3_substream_open(m3_t *chip, snd_pcm_substream_t *subs)
1807 {
1808 	int i;
1809 	m3_dma_t *s;
1810 
1811 	spin_lock_irq(&chip->reg_lock);
1812 	for (i = 0; i < chip->num_substreams; i++) {
1813 		s = &chip->substreams[i];
1814 		if (! s->opened)
1815 			goto __found;
1816 	}
1817 	spin_unlock_irq(&chip->reg_lock);
1818 	return -ENOMEM;
1819 __found:
1820 	s->opened = 1;
1821 	s->running = 0;
1822 	spin_unlock_irq(&chip->reg_lock);
1823 
1824 	subs->runtime->private_data = s;
1825 	s->substream = subs;
1826 
1827 	/* set list owners */
1828 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1829 		s->index_list[0] = &chip->mixer_list;
1830 	} else
1831 		s->index_list[0] = &chip->adc1_list;
1832 	s->index_list[1] = &chip->msrc_list;
1833 	s->index_list[2] = &chip->dma_list;
1834 
1835 	return 0;
1836 }
1837 
1838 static void
1839 snd_m3_substream_close(m3_t *chip, snd_pcm_substream_t *subs)
1840 {
1841 	m3_dma_t *s = (m3_dma_t*) subs->runtime->private_data;
1842 
1843 	if (s == NULL)
1844 		return; /* not opened properly */
1845 
1846 	spin_lock_irq(&chip->reg_lock);
1847 	if (s->substream && s->running)
1848 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1849 	if (s->in_lists) {
1850 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1851 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1852 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1853 		s->in_lists = 0;
1854 	}
1855 	s->running = 0;
1856 	s->opened = 0;
1857 	spin_unlock_irq(&chip->reg_lock);
1858 }
1859 
1860 static int
1861 snd_m3_playback_open(snd_pcm_substream_t *subs)
1862 {
1863 	m3_t *chip = snd_pcm_substream_chip(subs);
1864 	snd_pcm_runtime_t *runtime = subs->runtime;
1865 	int err;
1866 
1867 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1868 		return err;
1869 
1870 	runtime->hw = snd_m3_playback;
1871 	snd_pcm_set_sync(subs);
1872 
1873 	return 0;
1874 }
1875 
1876 static int
1877 snd_m3_playback_close(snd_pcm_substream_t *subs)
1878 {
1879 	m3_t *chip = snd_pcm_substream_chip(subs);
1880 
1881 	snd_m3_substream_close(chip, subs);
1882 	return 0;
1883 }
1884 
1885 static int
1886 snd_m3_capture_open(snd_pcm_substream_t *subs)
1887 {
1888 	m3_t *chip = snd_pcm_substream_chip(subs);
1889 	snd_pcm_runtime_t *runtime = subs->runtime;
1890 	int err;
1891 
1892 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1893 		return err;
1894 
1895 	runtime->hw = snd_m3_capture;
1896 	snd_pcm_set_sync(subs);
1897 
1898 	return 0;
1899 }
1900 
1901 static int
1902 snd_m3_capture_close(snd_pcm_substream_t *subs)
1903 {
1904 	m3_t *chip = snd_pcm_substream_chip(subs);
1905 
1906 	snd_m3_substream_close(chip, subs);
1907 	return 0;
1908 }
1909 
1910 /*
1911  * create pcm instance
1912  */
1913 
1914 static snd_pcm_ops_t snd_m3_playback_ops = {
1915 	.open =		snd_m3_playback_open,
1916 	.close =	snd_m3_playback_close,
1917 	.ioctl =	snd_pcm_lib_ioctl,
1918 	.hw_params =	snd_m3_pcm_hw_params,
1919 	.hw_free =	snd_m3_pcm_hw_free,
1920 	.prepare =	snd_m3_pcm_prepare,
1921 	.trigger =	snd_m3_pcm_trigger,
1922 	.pointer =	snd_m3_pcm_pointer,
1923 };
1924 
1925 static snd_pcm_ops_t snd_m3_capture_ops = {
1926 	.open =		snd_m3_capture_open,
1927 	.close =	snd_m3_capture_close,
1928 	.ioctl =	snd_pcm_lib_ioctl,
1929 	.hw_params =	snd_m3_pcm_hw_params,
1930 	.hw_free =	snd_m3_pcm_hw_free,
1931 	.prepare =	snd_m3_pcm_prepare,
1932 	.trigger =	snd_m3_pcm_trigger,
1933 	.pointer =	snd_m3_pcm_pointer,
1934 };
1935 
1936 static int __devinit
1937 snd_m3_pcm(m3_t * chip, int device)
1938 {
1939 	snd_pcm_t *pcm;
1940 	int err;
1941 
1942 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1943 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1944 	if (err < 0)
1945 		return err;
1946 
1947 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1948 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1949 
1950 	pcm->private_data = chip;
1951 	pcm->info_flags = 0;
1952 	strcpy(pcm->name, chip->card->driver);
1953 	chip->pcm = pcm;
1954 
1955 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1956 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1957 
1958 	return 0;
1959 }
1960 
1961 
1962 /*
1963  * ac97 interface
1964  */
1965 
1966 /*
1967  * Wait for the ac97 serial bus to be free.
1968  * return nonzero if the bus is still busy.
1969  */
1970 static int snd_m3_ac97_wait(m3_t *chip)
1971 {
1972 	int i = 10000;
1973 
1974 	do {
1975 		if (! (snd_m3_inb(chip, 0x30) & 1))
1976 			return 0;
1977 	} while (i-- > 0);
1978 
1979 	snd_printk("ac97 serial bus busy\n");
1980 	return 1;
1981 }
1982 
1983 static unsigned short
1984 snd_m3_ac97_read(ac97_t *ac97, unsigned short reg)
1985 {
1986 	m3_t *chip = ac97->private_data;
1987 	unsigned long flags;
1988 	unsigned short data;
1989 
1990 	if (snd_m3_ac97_wait(chip))
1991 		return 0xffff;
1992 	spin_lock_irqsave(&chip->ac97_lock, flags);
1993 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1994 	if (snd_m3_ac97_wait(chip))
1995 		return 0xffff;
1996 	data = snd_m3_inw(chip, CODEC_DATA);
1997 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
1998 	return data;
1999 }
2000 
2001 static void
2002 snd_m3_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val)
2003 {
2004 	m3_t *chip = ac97->private_data;
2005 	unsigned long flags;
2006 
2007 	if (snd_m3_ac97_wait(chip))
2008 		return;
2009 	spin_lock_irqsave(&chip->ac97_lock, flags);
2010 	snd_m3_outw(chip, val, CODEC_DATA);
2011 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
2012 	spin_unlock_irqrestore(&chip->ac97_lock, flags);
2013 }
2014 
2015 
2016 static void snd_m3_remote_codec_config(int io, int isremote)
2017 {
2018 	isremote = isremote ? 1 : 0;
2019 
2020 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
2021 	     io + RING_BUS_CTRL_B);
2022 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
2023 	     io + SDO_OUT_DEST_CTRL);
2024 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
2025 	     io + SDO_IN_DEST_CTRL);
2026 }
2027 
2028 /*
2029  * hack, returns non zero on err
2030  */
2031 static int snd_m3_try_read_vendor(m3_t *chip)
2032 {
2033 	u16 ret;
2034 
2035 	if (snd_m3_ac97_wait(chip))
2036 		return 1;
2037 
2038 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
2039 
2040 	if (snd_m3_ac97_wait(chip))
2041 		return 1;
2042 
2043 	ret = snd_m3_inw(chip, 0x32);
2044 
2045 	return (ret == 0) || (ret == 0xffff);
2046 }
2047 
2048 static void snd_m3_ac97_reset(m3_t *chip)
2049 {
2050 	u16 dir;
2051 	int delay1 = 0, delay2 = 0, i;
2052 	int io = chip->iobase;
2053 
2054 	if (chip->allegro_flag) {
2055 		/*
2056 		 * the onboard codec on the allegro seems
2057 		 * to want to wait a very long time before
2058 		 * coming back to life
2059 		 */
2060 		delay1 = 50;
2061 		delay2 = 800;
2062 	} else {
2063 		/* maestro3 */
2064 		delay1 = 20;
2065 		delay2 = 500;
2066 	}
2067 
2068 	for (i = 0; i < 5; i++) {
2069 		dir = inw(io + GPIO_DIRECTION);
2070 		if (! chip->quirk || ! chip->quirk->irda_workaround)
2071 			dir |= 0x10; /* assuming pci bus master? */
2072 
2073 		snd_m3_remote_codec_config(io, 0);
2074 
2075 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2076 		udelay(20);
2077 
2078 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2079 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2080 		outw(0, io + GPIO_DATA);
2081 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2082 
2083 		set_current_state(TASK_UNINTERRUPTIBLE);
2084 		schedule_timeout((delay1 * HZ) / 1000);
2085 
2086 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2087 		udelay(5);
2088 		/* ok, bring back the ac-link */
2089 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2090 		outw(~0, io + GPIO_MASK);
2091 
2092 		set_current_state(TASK_UNINTERRUPTIBLE);
2093 		schedule_timeout((delay2 * HZ) / 1000);
2094 
2095 		if (! snd_m3_try_read_vendor(chip))
2096 			break;
2097 
2098 		delay1 += 10;
2099 		delay2 += 100;
2100 
2101 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2102 			   delay1, delay2);
2103 	}
2104 
2105 #if 0
2106 	/* more gung-ho reset that doesn't
2107 	 * seem to work anywhere :)
2108 	 */
2109 	tmp = inw(io + RING_BUS_CTRL_A);
2110 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2111 	big_mdelay(20);
2112 	outw(tmp, io + RING_BUS_CTRL_A);
2113 	big_mdelay(50);
2114 #endif
2115 }
2116 
2117 static int __devinit snd_m3_mixer(m3_t *chip)
2118 {
2119 	ac97_bus_t *pbus;
2120 	ac97_template_t ac97;
2121 	snd_ctl_elem_id_t id;
2122 	int err;
2123 	static ac97_bus_ops_t ops = {
2124 		.write = snd_m3_ac97_write,
2125 		.read = snd_m3_ac97_read,
2126 	};
2127 
2128 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2129 		return err;
2130 
2131 	memset(&ac97, 0, sizeof(ac97));
2132 	ac97.private_data = chip;
2133 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2134 		return err;
2135 
2136 	/* seems ac97 PCM needs initialization.. hack hack.. */
2137 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2138 	set_current_state(TASK_UNINTERRUPTIBLE);
2139 	schedule_timeout(HZ / 10);
2140 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2141 
2142 	memset(&id, 0, sizeof(id));
2143 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2144 	strcpy(id.name, "Master Playback Switch");
2145 	chip->master_switch = snd_ctl_find_id(chip->card, &id);
2146 	memset(&id, 0, sizeof(id));
2147 	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2148 	strcpy(id.name, "Master Playback Volume");
2149 	chip->master_volume = snd_ctl_find_id(chip->card, &id);
2150 
2151 	return 0;
2152 }
2153 
2154 
2155 /*
2156  * DSP Code images
2157  */
2158 
2159 static u16 assp_kernel_image[] __devinitdata = {
2160     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2161     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2162     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2163     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2164     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2165     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2166     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2167     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2168     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2169     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2170     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2171     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2172     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2173     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2174     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2175     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2176     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2177     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2178     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2179     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2180     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2181     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2182     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2183     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2184     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2185     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2186     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2187     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2188     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2189     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2190     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2191     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2192     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2193     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2194     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2195     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2196     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2197     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2198     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2199     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2200     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2201     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2202     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2203     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2204     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2205     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2206     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2207     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2208     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2209     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2210     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2211     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2212     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2213     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2214     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2215     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2216     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2217     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2218     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2219     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2220     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2221     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2222     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2223     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2224     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2225     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2226     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2227     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2228     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2229     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2230     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2231     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2232     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2233     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2234     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2235     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2236     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2237     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2238     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2239     0xBE3A,
2240 };
2241 
2242 /*
2243  * Mini sample rate converter code image
2244  * that is to be loaded at 0x400 on the DSP.
2245  */
2246 static u16 assp_minisrc_image[] __devinitdata = {
2247 
2248     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2249     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2250     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2251     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2252     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2253     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2254     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2255     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2256     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2257     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2258     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2259     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2260     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2261     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2262     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2263     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2264     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2265     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2266     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2267     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2268     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2269     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2270     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2271     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2272     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2273     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2274     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2275     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2276     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2277     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2278     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2279     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2280     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2281 };
2282 
2283 
2284 /*
2285  * initialize ASSP
2286  */
2287 
2288 #define MINISRC_LPF_LEN 10
2289 static u16 minisrc_lpf[MINISRC_LPF_LEN] __devinitdata = {
2290 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2291 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2292 };
2293 
2294 static void __devinit snd_m3_assp_init(m3_t *chip)
2295 {
2296 	unsigned int i;
2297 
2298 	/* zero kernel data */
2299 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2300 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2301 				  KDATA_BASE_ADDR + i, 0);
2302 
2303 	/* zero mixer data? */
2304 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2305 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2306 				  KDATA_BASE_ADDR2 + i, 0);
2307 
2308 	/* init dma pointer */
2309 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2310 			  KDATA_CURRENT_DMA,
2311 			  KDATA_DMA_XFER0);
2312 
2313 	/* write kernel into code memory.. */
2314 	for (i = 0 ; i < ARRAY_SIZE(assp_kernel_image); i++) {
2315 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2316 				  REV_B_CODE_MEMORY_BEGIN + i,
2317 				  assp_kernel_image[i]);
2318 	}
2319 
2320 	/*
2321 	 * We only have this one client and we know that 0x400
2322 	 * is free in our kernel's mem map, so lets just
2323 	 * drop it there.  It seems that the minisrc doesn't
2324 	 * need vectors, so we won't bother with them..
2325 	 */
2326 	for (i = 0; i < ARRAY_SIZE(assp_minisrc_image); i++) {
2327 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2328 				  0x400 + i,
2329 				  assp_minisrc_image[i]);
2330 	}
2331 
2332 	/*
2333 	 * write the coefficients for the low pass filter?
2334 	 */
2335 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2336 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2337 				  0x400 + MINISRC_COEF_LOC + i,
2338 				  minisrc_lpf[i]);
2339 	}
2340 
2341 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2342 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2343 			  0x8000);
2344 
2345 	/*
2346 	 * the minisrc is the only thing on
2347 	 * our task list..
2348 	 */
2349 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2350 			  KDATA_TASK0,
2351 			  0x400);
2352 
2353 	/*
2354 	 * init the mixer number..
2355 	 */
2356 
2357 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2358 			  KDATA_MIXER_TASK_NUMBER,0);
2359 
2360 	/*
2361 	 * EXTREME KERNEL MASTER VOLUME
2362 	 */
2363 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2364 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2365 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2366 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2367 
2368 	chip->mixer_list.curlen = 0;
2369 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2370 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2371 	chip->adc1_list.curlen = 0;
2372 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2373 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2374 	chip->dma_list.curlen = 0;
2375 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2376 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2377 	chip->msrc_list.curlen = 0;
2378 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2379 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2380 }
2381 
2382 
2383 static int __devinit snd_m3_assp_client_init(m3_t *chip, m3_dma_t *s, int index)
2384 {
2385 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2386 			       MINISRC_IN_BUFFER_SIZE / 2 +
2387 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2388 	int address, i;
2389 
2390 	/*
2391 	 * the revb memory map has 0x1100 through 0x1c00
2392 	 * free.
2393 	 */
2394 
2395 	/*
2396 	 * align instance address to 256 bytes so that it's
2397 	 * shifted list address is aligned.
2398 	 * list address = (mem address >> 1) >> 7;
2399 	 */
2400 	data_bytes = (data_bytes + 255) & ~255;
2401 	address = 0x1100 + ((data_bytes/2) * index);
2402 
2403 	if ((address + (data_bytes/2)) >= 0x1c00) {
2404 		snd_printk("no memory for %d bytes at ind %d (addr 0x%x)\n",
2405 			   data_bytes, index, address);
2406 		return -ENOMEM;
2407 	}
2408 
2409 	s->number = index;
2410 	s->inst.code = 0x400;
2411 	s->inst.data = address;
2412 
2413 	for (i = data_bytes / 2; i > 0; address++, i--) {
2414 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2415 				  address, 0);
2416 	}
2417 
2418 	return 0;
2419 }
2420 
2421 
2422 /*
2423  * this works for the reference board, have to find
2424  * out about others
2425  *
2426  * this needs more magic for 4 speaker, but..
2427  */
2428 static void
2429 snd_m3_amp_enable(m3_t *chip, int enable)
2430 {
2431 	int io = chip->iobase;
2432 	u16 gpo, polarity;
2433 
2434 	if (! chip->external_amp)
2435 		return;
2436 
2437 	polarity = enable ? 0 : 1;
2438 	polarity = polarity << chip->amp_gpio;
2439 	gpo = 1 << chip->amp_gpio;
2440 
2441 	outw(~gpo, io + GPIO_MASK);
2442 
2443 	outw(inw(io + GPIO_DIRECTION) | gpo,
2444 	     io + GPIO_DIRECTION);
2445 
2446 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2447 	     io + GPIO_DATA);
2448 
2449 	outw(0xffff, io + GPIO_MASK);
2450 }
2451 
2452 static int
2453 snd_m3_chip_init(m3_t *chip)
2454 {
2455 	struct pci_dev *pcidev = chip->pci;
2456 	unsigned long io = chip->iobase;
2457 	u32 n;
2458 	u16 w;
2459 	u8 t; /* makes as much sense as 'n', no? */
2460 
2461 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2462 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2463 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2464 	       DISABLE_LEGACY);
2465 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2466 
2467 	if (chip->hv_quirk && chip->hv_quirk->is_omnibook) {
2468 		/*
2469 		 * Volume buttons on some HP OmniBook laptops don't work
2470 		 * correctly. This makes them work for the most part.
2471 		 *
2472 		 * Volume up and down buttons on the laptop side work.
2473 		 * Fn+cursor_up (volme up) works.
2474 		 * Fn+cursor_down (volume down) doesn't work.
2475 		 * Fn+F7 (mute) works acts as volume up.
2476 		 */
2477 		outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
2478 		outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
2479 		outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
2480 		outw(0xffff, io + GPIO_MASK);
2481 	}
2482 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2483 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2484 	if (chip->hv_quirk)
2485 		n |= chip->hv_quirk->config;
2486 	/* For some reason we must always use reduced debounce. */
2487 	n |= REDUCED_DEBOUNCE;
2488 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2489 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2490 
2491 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2492 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2493 	n &= ~INT_CLK_SELECT;
2494 	if (!chip->allegro_flag) {
2495 		n &= ~INT_CLK_MULT_ENABLE;
2496 		n |= INT_CLK_SRC_NOT_PCI;
2497 	}
2498 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2499 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2500 
2501 	if (chip->allegro_flag) {
2502 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2503 		n |= IN_CLK_12MHZ_SELECT;
2504 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2505 	}
2506 
2507 	t = inb(chip->iobase + ASSP_CONTROL_A);
2508 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2509 	t |= ASSP_CLK_49MHZ_SELECT;
2510 	t |= ASSP_0_WS_ENABLE;
2511 	outb(t, chip->iobase + ASSP_CONTROL_A);
2512 
2513 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2514 
2515 	outb(0x00, io + HARDWARE_VOL_CTRL);
2516 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2517 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2518 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2519 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2520 
2521 	return 0;
2522 }
2523 
2524 static void
2525 snd_m3_enable_ints(m3_t *chip)
2526 {
2527 	unsigned long io = chip->iobase;
2528 
2529 	/* TODO: MPU401 not supported yet */
2530 	outw(ASSP_INT_ENABLE | HV_INT_ENABLE /*| MPU401_INT_ENABLE*/, io + HOST_INT_CTRL);
2531 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2532 	     io + ASSP_CONTROL_C);
2533 }
2534 
2535 
2536 /*
2537  */
2538 
2539 static int snd_m3_free(m3_t *chip)
2540 {
2541 	m3_dma_t *s;
2542 	int i;
2543 
2544 	if (chip->substreams) {
2545 		spin_lock_irq(&chip->reg_lock);
2546 		for (i = 0; i < chip->num_substreams; i++) {
2547 			s = &chip->substreams[i];
2548 			/* check surviving pcms; this should not happen though.. */
2549 			if (s->substream && s->running)
2550 				snd_m3_pcm_stop(chip, s, s->substream);
2551 		}
2552 		spin_unlock_irq(&chip->reg_lock);
2553 		kfree(chip->substreams);
2554 	}
2555 	if (chip->iobase) {
2556 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2557 	}
2558 
2559 #ifdef CONFIG_PM
2560 	vfree(chip->suspend_mem);
2561 #endif
2562 
2563 	if (chip->irq >= 0) {
2564 		synchronize_irq(chip->irq);
2565 		free_irq(chip->irq, (void *)chip);
2566 	}
2567 
2568 	if (chip->iobase)
2569 		pci_release_regions(chip->pci);
2570 
2571 	pci_disable_device(chip->pci);
2572 	kfree(chip);
2573 	return 0;
2574 }
2575 
2576 
2577 /*
2578  * APM support
2579  */
2580 #ifdef CONFIG_PM
2581 static int m3_suspend(snd_card_t *card, pm_message_t state)
2582 {
2583 	m3_t *chip = card->pm_private_data;
2584 	int i, index;
2585 
2586 	if (chip->suspend_mem == NULL)
2587 		return 0;
2588 
2589 	snd_pcm_suspend_all(chip->pcm);
2590 	snd_ac97_suspend(chip->ac97);
2591 
2592 	big_mdelay(10); /* give the assp a chance to idle.. */
2593 
2594 	snd_m3_assp_halt(chip);
2595 
2596 	/* save dsp image */
2597 	index = 0;
2598 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2599 		chip->suspend_mem[index++] =
2600 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2601 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2602 		chip->suspend_mem[index++] =
2603 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2604 
2605 	/* power down apci registers */
2606 	snd_m3_outw(chip, 0xffff, 0x54);
2607 	snd_m3_outw(chip, 0xffff, 0x56);
2608 
2609 	pci_disable_device(chip->pci);
2610 	return 0;
2611 }
2612 
2613 static int m3_resume(snd_card_t *card)
2614 {
2615 	m3_t *chip = card->pm_private_data;
2616 	int i, index;
2617 
2618 	if (chip->suspend_mem == NULL)
2619 		return 0;
2620 
2621 	pci_enable_device(chip->pci);
2622 	pci_set_master(chip->pci);
2623 
2624 	/* first lets just bring everything back. .*/
2625 	snd_m3_outw(chip, 0, 0x54);
2626 	snd_m3_outw(chip, 0, 0x56);
2627 
2628 	snd_m3_chip_init(chip);
2629 	snd_m3_assp_halt(chip);
2630 	snd_m3_ac97_reset(chip);
2631 
2632 	/* restore dsp image */
2633 	index = 0;
2634 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2635 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2636 				  chip->suspend_mem[index++]);
2637 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2638 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2639 				  chip->suspend_mem[index++]);
2640 
2641 	/* tell the dma engine to restart itself */
2642 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2643 			  KDATA_DMA_ACTIVE, 0);
2644 
2645         /* restore ac97 registers */
2646 	snd_ac97_resume(chip->ac97);
2647 
2648 	snd_m3_assp_continue(chip);
2649 	snd_m3_enable_ints(chip);
2650 	snd_m3_amp_enable(chip, 1);
2651 
2652 	return 0;
2653 }
2654 #endif /* CONFIG_PM */
2655 
2656 
2657 /*
2658  */
2659 
2660 static int snd_m3_dev_free(snd_device_t *device)
2661 {
2662 	m3_t *chip = device->device_data;
2663 	return snd_m3_free(chip);
2664 }
2665 
2666 static int __devinit
2667 snd_m3_create(snd_card_t *card, struct pci_dev *pci,
2668 	      int enable_amp,
2669 	      int amp_gpio,
2670 	      m3_t **chip_ret)
2671 {
2672 	m3_t *chip;
2673 	int i, err;
2674 	struct m3_quirk *quirk;
2675 	struct m3_hv_quirk *hv_quirk;
2676 	static snd_device_ops_t ops = {
2677 		.dev_free =	snd_m3_dev_free,
2678 	};
2679 
2680 	*chip_ret = NULL;
2681 
2682 	if (pci_enable_device(pci))
2683 		return -EIO;
2684 
2685 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2686 	if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
2687 	    pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
2688 		snd_printk("architecture does not support 28bit PCI busmaster DMA\n");
2689 		pci_disable_device(pci);
2690 		return -ENXIO;
2691 	}
2692 
2693 	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
2694 	if (chip == NULL) {
2695 		pci_disable_device(pci);
2696 		return -ENOMEM;
2697 	}
2698 
2699 	spin_lock_init(&chip->reg_lock);
2700 	switch (pci->device) {
2701 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2702 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2703 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2704 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2705 		chip->allegro_flag = 1;
2706 		break;
2707 	}
2708 
2709 	chip->card = card;
2710 	chip->pci = pci;
2711 	chip->irq = -1;
2712 
2713 	for (quirk = m3_quirk_list; quirk->vendor; quirk++) {
2714 		if (pci->subsystem_vendor == quirk->vendor &&
2715 		    pci->subsystem_device == quirk->device) {
2716 			printk(KERN_INFO "maestro3: enabled hack for '%s'\n", quirk->name);
2717 			chip->quirk = quirk;
2718 			break;
2719 		}
2720 	}
2721 
2722 	for (hv_quirk = m3_hv_quirk_list; hv_quirk->vendor; hv_quirk++) {
2723 		if (pci->vendor == hv_quirk->vendor &&
2724 		    pci->device == hv_quirk->device &&
2725 		    pci->subsystem_vendor == hv_quirk->subsystem_vendor &&
2726 		    pci->subsystem_device == hv_quirk->subsystem_device) {
2727 			chip->hv_quirk = hv_quirk;
2728 			break;
2729 		}
2730 	}
2731 
2732 	chip->external_amp = enable_amp;
2733 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2734 		chip->amp_gpio = amp_gpio;
2735 	else if (chip->quirk && chip->quirk->amp_gpio >= 0)
2736 		chip->amp_gpio = chip->quirk->amp_gpio;
2737 	else if (chip->allegro_flag)
2738 		chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2739 	else /* presumably this is for all 'maestro3's.. */
2740 		chip->amp_gpio = GPO_EXT_AMP_M3;
2741 
2742 	chip->num_substreams = NR_DSPS;
2743 	chip->substreams = kmalloc(sizeof(m3_dma_t) * chip->num_substreams, GFP_KERNEL);
2744 	if (chip->substreams == NULL) {
2745 		kfree(chip);
2746 		pci_disable_device(pci);
2747 		return -ENOMEM;
2748 	}
2749 	memset(chip->substreams, 0, sizeof(m3_dma_t) * chip->num_substreams);
2750 
2751 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2752 		snd_m3_free(chip);
2753 		return err;
2754 	}
2755 	chip->iobase = pci_resource_start(pci, 0);
2756 
2757 	/* just to be sure */
2758 	pci_set_master(pci);
2759 
2760 	snd_m3_chip_init(chip);
2761 	snd_m3_assp_halt(chip);
2762 
2763 	snd_m3_ac97_reset(chip);
2764 
2765 	snd_m3_assp_init(chip);
2766 	snd_m3_amp_enable(chip, 1);
2767 
2768 	if (request_irq(pci->irq, snd_m3_interrupt, SA_INTERRUPT|SA_SHIRQ,
2769 			card->driver, (void *)chip)) {
2770 		snd_printk("unable to grab IRQ %d\n", pci->irq);
2771 		snd_m3_free(chip);
2772 		return -ENOMEM;
2773 	}
2774 	chip->irq = pci->irq;
2775 
2776 #ifdef CONFIG_PM
2777 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2778 	if (chip->suspend_mem == NULL)
2779 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2780 	else
2781 		snd_card_set_pm_callback(card, m3_suspend, m3_resume, chip);
2782 #endif
2783 
2784 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2785 		snd_m3_free(chip);
2786 		return err;
2787 	}
2788 
2789 	spin_lock_init(&chip->ac97_lock);
2790 	tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip);
2791 
2792 	if ((err = snd_m3_mixer(chip)) < 0)
2793 		return err;
2794 
2795 	for (i = 0; i < chip->num_substreams; i++) {
2796 		m3_dma_t *s = &chip->substreams[i];
2797 		s->chip = chip;
2798 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2799 			return err;
2800 	}
2801 
2802 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2803 		return err;
2804 
2805 	snd_m3_enable_ints(chip);
2806 	snd_m3_assp_continue(chip);
2807 
2808 	snd_card_set_dev(card, &pci->dev);
2809 
2810 	*chip_ret = chip;
2811 
2812 	return 0;
2813 }
2814 
2815 /*
2816  */
2817 static int __devinit
2818 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2819 {
2820 	static int dev;
2821 	snd_card_t *card;
2822 	m3_t *chip;
2823 	int err;
2824 
2825 	/* don't pick up modems */
2826 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2827 		return -ENODEV;
2828 
2829 	if (dev >= SNDRV_CARDS)
2830 		return -ENODEV;
2831 	if (!enable[dev]) {
2832 		dev++;
2833 		return -ENOENT;
2834 	}
2835 
2836 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2837 	if (card == NULL)
2838 		return -ENOMEM;
2839 
2840 	switch (pci->device) {
2841 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2842 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2843 		strcpy(card->driver, "Allegro");
2844 		break;
2845 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2846 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2847 		strcpy(card->driver, "Canyon3D-2");
2848 		break;
2849 	default:
2850 		strcpy(card->driver, "Maestro3");
2851 		break;
2852 	}
2853 
2854 	if ((err = snd_m3_create(card, pci,
2855 				 external_amp[dev],
2856 				 amp_gpio[dev],
2857 				 &chip)) < 0) {
2858 		snd_card_free(card);
2859 		return err;
2860 	}
2861 
2862 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2863 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2864 		card->shortname, chip->iobase, chip->irq);
2865 
2866 	if ((err = snd_card_register(card)) < 0) {
2867 		snd_card_free(card);
2868 		return err;
2869 	}
2870 
2871 #if 0 /* TODO: not supported yet */
2872 	/* TODO enable midi irq and i/o */
2873 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2874 				  chip->iobase + MPU401_DATA_PORT, 1,
2875 				  chip->irq, 0, &chip->rmidi);
2876 	if (err < 0)
2877 		printk(KERN_WARNING "maestro3: no midi support.\n");
2878 #endif
2879 
2880 	pci_set_drvdata(pci, card);
2881 	dev++;
2882 	return 0;
2883 }
2884 
2885 static void __devexit snd_m3_remove(struct pci_dev *pci)
2886 {
2887 	snd_card_free(pci_get_drvdata(pci));
2888 	pci_set_drvdata(pci, NULL);
2889 }
2890 
2891 static struct pci_driver driver = {
2892 	.name = "Maestro3",
2893 	.id_table = snd_m3_ids,
2894 	.probe = snd_m3_probe,
2895 	.remove = __devexit_p(snd_m3_remove),
2896 	SND_PCI_PM_CALLBACKS
2897 };
2898 
2899 static int __init alsa_card_m3_init(void)
2900 {
2901 	return pci_register_driver(&driver);
2902 }
2903 
2904 static void __exit alsa_card_m3_exit(void)
2905 {
2906 	pci_unregister_driver(&driver);
2907 }
2908 
2909 module_init(alsa_card_m3_init)
2910 module_exit(alsa_card_m3_exit)
2911