xref: /openbmc/linux/sound/pci/maestro3.c (revision dba8b469)
1 /*
2  * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
3  * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
4  *                       Takashi Iwai <tiwai@suse.de>
5  *
6  * Most of the hardware init stuffs are based on maestro3 driver for
7  * OSS/Free by Zach Brown.  Many thanks to Zach!
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  *
24  * ChangeLog:
25  * Aug. 27, 2001
26  *     - Fixed deadlock on capture
27  *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
28  *
29  */
30 
31 #define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
32 #define DRIVER_NAME "Maestro3"
33 
34 #include <asm/io.h>
35 #include <linux/delay.h>
36 #include <linux/interrupt.h>
37 #include <linux/init.h>
38 #include <linux/pci.h>
39 #include <linux/dma-mapping.h>
40 #include <linux/slab.h>
41 #include <linux/vmalloc.h>
42 #include <linux/moduleparam.h>
43 #include <linux/firmware.h>
44 #include <linux/input.h>
45 #include <sound/core.h>
46 #include <sound/info.h>
47 #include <sound/control.h>
48 #include <sound/pcm.h>
49 #include <sound/mpu401.h>
50 #include <sound/ac97_codec.h>
51 #include <sound/initval.h>
52 #include <asm/byteorder.h>
53 
54 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
55 MODULE_DESCRIPTION("ESS Maestro3 PCI");
56 MODULE_LICENSE("GPL");
57 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
58 		"{ESS,ES1988},"
59 		"{ESS,Allegro PCI},"
60 		"{ESS,Allegro-1 PCI},"
61 	        "{ESS,Canyon3D-2/LE PCI}}");
62 MODULE_FIRMWARE("ess/maestro3_assp_kernel.fw");
63 MODULE_FIRMWARE("ess/maestro3_assp_minisrc.fw");
64 
65 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
66 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
67 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
68 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
69 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
70 
71 module_param_array(index, int, NULL, 0444);
72 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
73 module_param_array(id, charp, NULL, 0444);
74 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
75 module_param_array(enable, bool, NULL, 0444);
76 MODULE_PARM_DESC(enable, "Enable this soundcard.");
77 module_param_array(external_amp, bool, NULL, 0444);
78 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
79 module_param_array(amp_gpio, int, NULL, 0444);
80 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
81 
82 #define MAX_PLAYBACKS	2
83 #define MAX_CAPTURES	1
84 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
85 
86 
87 /*
88  * maestro3 registers
89  */
90 
91 /* Allegro PCI configuration registers */
92 #define PCI_LEGACY_AUDIO_CTRL   0x40
93 #define SOUND_BLASTER_ENABLE    0x00000001
94 #define FM_SYNTHESIS_ENABLE     0x00000002
95 #define GAME_PORT_ENABLE        0x00000004
96 #define MPU401_IO_ENABLE        0x00000008
97 #define MPU401_IRQ_ENABLE       0x00000010
98 #define ALIAS_10BIT_IO          0x00000020
99 #define SB_DMA_MASK             0x000000C0
100 #define SB_DMA_0                0x00000040
101 #define SB_DMA_1                0x00000040
102 #define SB_DMA_R                0x00000080
103 #define SB_DMA_3                0x000000C0
104 #define SB_IRQ_MASK             0x00000700
105 #define SB_IRQ_5                0x00000000
106 #define SB_IRQ_7                0x00000100
107 #define SB_IRQ_9                0x00000200
108 #define SB_IRQ_10               0x00000300
109 #define MIDI_IRQ_MASK           0x00003800
110 #define SERIAL_IRQ_ENABLE       0x00004000
111 #define DISABLE_LEGACY          0x00008000
112 
113 #define PCI_ALLEGRO_CONFIG      0x50
114 #define SB_ADDR_240             0x00000004
115 #define MPU_ADDR_MASK           0x00000018
116 #define MPU_ADDR_330            0x00000000
117 #define MPU_ADDR_300            0x00000008
118 #define MPU_ADDR_320            0x00000010
119 #define MPU_ADDR_340            0x00000018
120 #define USE_PCI_TIMING          0x00000040
121 #define POSTED_WRITE_ENABLE     0x00000080
122 #define DMA_POLICY_MASK         0x00000700
123 #define DMA_DDMA                0x00000000
124 #define DMA_TDMA                0x00000100
125 #define DMA_PCPCI               0x00000200
126 #define DMA_WBDMA16             0x00000400
127 #define DMA_WBDMA4              0x00000500
128 #define DMA_WBDMA2              0x00000600
129 #define DMA_WBDMA1              0x00000700
130 #define DMA_SAFE_GUARD          0x00000800
131 #define HI_PERF_GP_ENABLE       0x00001000
132 #define PIC_SNOOP_MODE_0        0x00002000
133 #define PIC_SNOOP_MODE_1        0x00004000
134 #define SOUNDBLASTER_IRQ_MASK   0x00008000
135 #define RING_IN_ENABLE          0x00010000
136 #define SPDIF_TEST_MODE         0x00020000
137 #define CLK_MULT_MODE_SELECT_2  0x00040000
138 #define EEPROM_WRITE_ENABLE     0x00080000
139 #define CODEC_DIR_IN            0x00100000
140 #define HV_BUTTON_FROM_GD       0x00200000
141 #define REDUCED_DEBOUNCE        0x00400000
142 #define HV_CTRL_ENABLE          0x00800000
143 #define SPDIF_ENABLE            0x01000000
144 #define CLK_DIV_SELECT          0x06000000
145 #define CLK_DIV_BY_48           0x00000000
146 #define CLK_DIV_BY_49           0x02000000
147 #define CLK_DIV_BY_50           0x04000000
148 #define CLK_DIV_RESERVED        0x06000000
149 #define PM_CTRL_ENABLE          0x08000000
150 #define CLK_MULT_MODE_SELECT    0x30000000
151 #define CLK_MULT_MODE_SHIFT     28
152 #define CLK_MULT_MODE_0         0x00000000
153 #define CLK_MULT_MODE_1         0x10000000
154 #define CLK_MULT_MODE_2         0x20000000
155 #define CLK_MULT_MODE_3         0x30000000
156 #define INT_CLK_SELECT          0x40000000
157 #define INT_CLK_MULT_RESET      0x80000000
158 
159 /* M3 */
160 #define INT_CLK_SRC_NOT_PCI     0x00100000
161 #define INT_CLK_MULT_ENABLE     0x80000000
162 
163 #define PCI_ACPI_CONTROL        0x54
164 #define PCI_ACPI_D0             0x00000000
165 #define PCI_ACPI_D1             0xB4F70000
166 #define PCI_ACPI_D2             0xB4F7B4F7
167 
168 #define PCI_USER_CONFIG         0x58
169 #define EXT_PCI_MASTER_ENABLE   0x00000001
170 #define SPDIF_OUT_SELECT        0x00000002
171 #define TEST_PIN_DIR_CTRL       0x00000004
172 #define AC97_CODEC_TEST         0x00000020
173 #define TRI_STATE_BUFFER        0x00000080
174 #define IN_CLK_12MHZ_SELECT     0x00000100
175 #define MULTI_FUNC_DISABLE      0x00000200
176 #define EXT_MASTER_PAIR_SEL     0x00000400
177 #define PCI_MASTER_SUPPORT      0x00000800
178 #define STOP_CLOCK_ENABLE       0x00001000
179 #define EAPD_DRIVE_ENABLE       0x00002000
180 #define REQ_TRI_STATE_ENABLE    0x00004000
181 #define REQ_LOW_ENABLE          0x00008000
182 #define MIDI_1_ENABLE           0x00010000
183 #define MIDI_2_ENABLE           0x00020000
184 #define SB_AUDIO_SYNC           0x00040000
185 #define HV_CTRL_TEST            0x00100000
186 #define SOUNDBLASTER_TEST       0x00400000
187 
188 #define PCI_USER_CONFIG_C       0x5C
189 
190 #define PCI_DDMA_CTRL           0x60
191 #define DDMA_ENABLE             0x00000001
192 
193 
194 /* Allegro registers */
195 #define HOST_INT_CTRL           0x18
196 #define SB_INT_ENABLE           0x0001
197 #define MPU401_INT_ENABLE       0x0002
198 #define ASSP_INT_ENABLE         0x0010
199 #define RING_INT_ENABLE         0x0020
200 #define HV_INT_ENABLE           0x0040
201 #define CLKRUN_GEN_ENABLE       0x0100
202 #define HV_CTRL_TO_PME          0x0400
203 #define SOFTWARE_RESET_ENABLE   0x8000
204 
205 /*
206  * should be using the above defines, probably.
207  */
208 #define REGB_ENABLE_RESET               0x01
209 #define REGB_STOP_CLOCK                 0x10
210 
211 #define HOST_INT_STATUS         0x1A
212 #define SB_INT_PENDING          0x01
213 #define MPU401_INT_PENDING      0x02
214 #define ASSP_INT_PENDING        0x10
215 #define RING_INT_PENDING        0x20
216 #define HV_INT_PENDING          0x40
217 
218 #define HARDWARE_VOL_CTRL       0x1B
219 #define SHADOW_MIX_REG_VOICE    0x1C
220 #define HW_VOL_COUNTER_VOICE    0x1D
221 #define SHADOW_MIX_REG_MASTER   0x1E
222 #define HW_VOL_COUNTER_MASTER   0x1F
223 
224 #define CODEC_COMMAND           0x30
225 #define CODEC_READ_B            0x80
226 
227 #define CODEC_STATUS            0x30
228 #define CODEC_BUSY_B            0x01
229 
230 #define CODEC_DATA              0x32
231 
232 #define RING_BUS_CTRL_A         0x36
233 #define RAC_PME_ENABLE          0x0100
234 #define RAC_SDFS_ENABLE         0x0200
235 #define LAC_PME_ENABLE          0x0400
236 #define LAC_SDFS_ENABLE         0x0800
237 #define SERIAL_AC_LINK_ENABLE   0x1000
238 #define IO_SRAM_ENABLE          0x2000
239 #define IIS_INPUT_ENABLE        0x8000
240 
241 #define RING_BUS_CTRL_B         0x38
242 #define SECOND_CODEC_ID_MASK    0x0003
243 #define SPDIF_FUNC_ENABLE       0x0010
244 #define SECOND_AC_ENABLE        0x0020
245 #define SB_MODULE_INTF_ENABLE   0x0040
246 #define SSPE_ENABLE             0x0040
247 #define M3I_DOCK_ENABLE         0x0080
248 
249 #define SDO_OUT_DEST_CTRL       0x3A
250 #define COMMAND_ADDR_OUT        0x0003
251 #define PCM_LR_OUT_LOCAL        0x0000
252 #define PCM_LR_OUT_REMOTE       0x0004
253 #define PCM_LR_OUT_MUTE         0x0008
254 #define PCM_LR_OUT_BOTH         0x000C
255 #define LINE1_DAC_OUT_LOCAL     0x0000
256 #define LINE1_DAC_OUT_REMOTE    0x0010
257 #define LINE1_DAC_OUT_MUTE      0x0020
258 #define LINE1_DAC_OUT_BOTH      0x0030
259 #define PCM_CLS_OUT_LOCAL       0x0000
260 #define PCM_CLS_OUT_REMOTE      0x0040
261 #define PCM_CLS_OUT_MUTE        0x0080
262 #define PCM_CLS_OUT_BOTH        0x00C0
263 #define PCM_RLF_OUT_LOCAL       0x0000
264 #define PCM_RLF_OUT_REMOTE      0x0100
265 #define PCM_RLF_OUT_MUTE        0x0200
266 #define PCM_RLF_OUT_BOTH        0x0300
267 #define LINE2_DAC_OUT_LOCAL     0x0000
268 #define LINE2_DAC_OUT_REMOTE    0x0400
269 #define LINE2_DAC_OUT_MUTE      0x0800
270 #define LINE2_DAC_OUT_BOTH      0x0C00
271 #define HANDSET_OUT_LOCAL       0x0000
272 #define HANDSET_OUT_REMOTE      0x1000
273 #define HANDSET_OUT_MUTE        0x2000
274 #define HANDSET_OUT_BOTH        0x3000
275 #define IO_CTRL_OUT_LOCAL       0x0000
276 #define IO_CTRL_OUT_REMOTE      0x4000
277 #define IO_CTRL_OUT_MUTE        0x8000
278 #define IO_CTRL_OUT_BOTH        0xC000
279 
280 #define SDO_IN_DEST_CTRL        0x3C
281 #define STATUS_ADDR_IN          0x0003
282 #define PCM_LR_IN_LOCAL         0x0000
283 #define PCM_LR_IN_REMOTE        0x0004
284 #define PCM_LR_RESERVED         0x0008
285 #define PCM_LR_IN_BOTH          0x000C
286 #define LINE1_ADC_IN_LOCAL      0x0000
287 #define LINE1_ADC_IN_REMOTE     0x0010
288 #define LINE1_ADC_IN_MUTE       0x0020
289 #define MIC_ADC_IN_LOCAL        0x0000
290 #define MIC_ADC_IN_REMOTE       0x0040
291 #define MIC_ADC_IN_MUTE         0x0080
292 #define LINE2_DAC_IN_LOCAL      0x0000
293 #define LINE2_DAC_IN_REMOTE     0x0400
294 #define LINE2_DAC_IN_MUTE       0x0800
295 #define HANDSET_IN_LOCAL        0x0000
296 #define HANDSET_IN_REMOTE       0x1000
297 #define HANDSET_IN_MUTE         0x2000
298 #define IO_STATUS_IN_LOCAL      0x0000
299 #define IO_STATUS_IN_REMOTE     0x4000
300 
301 #define SPDIF_IN_CTRL           0x3E
302 #define SPDIF_IN_ENABLE         0x0001
303 
304 #define GPIO_DATA               0x60
305 #define GPIO_DATA_MASK          0x0FFF
306 #define GPIO_HV_STATUS          0x3000
307 #define GPIO_PME_STATUS         0x4000
308 
309 #define GPIO_MASK               0x64
310 #define GPIO_DIRECTION          0x68
311 #define GPO_PRIMARY_AC97        0x0001
312 #define GPI_LINEOUT_SENSE       0x0004
313 #define GPO_SECONDARY_AC97      0x0008
314 #define GPI_VOL_DOWN            0x0010
315 #define GPI_VOL_UP              0x0020
316 #define GPI_IIS_CLK             0x0040
317 #define GPI_IIS_LRCLK           0x0080
318 #define GPI_IIS_DATA            0x0100
319 #define GPI_DOCKING_STATUS      0x0100
320 #define GPI_HEADPHONE_SENSE     0x0200
321 #define GPO_EXT_AMP_SHUTDOWN    0x1000
322 
323 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
324 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
325 
326 /* M3 */
327 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
328 
329 #define ASSP_INDEX_PORT         0x80
330 #define ASSP_MEMORY_PORT        0x82
331 #define ASSP_DATA_PORT          0x84
332 
333 #define MPU401_DATA_PORT        0x98
334 #define MPU401_STATUS_PORT      0x99
335 
336 #define CLK_MULT_DATA_PORT      0x9C
337 
338 #define ASSP_CONTROL_A          0xA2
339 #define ASSP_0_WS_ENABLE        0x01
340 #define ASSP_CTRL_A_RESERVED1   0x02
341 #define ASSP_CTRL_A_RESERVED2   0x04
342 #define ASSP_CLK_49MHZ_SELECT   0x08
343 #define FAST_PLU_ENABLE         0x10
344 #define ASSP_CTRL_A_RESERVED3   0x20
345 #define DSP_CLK_36MHZ_SELECT    0x40
346 
347 #define ASSP_CONTROL_B          0xA4
348 #define RESET_ASSP              0x00
349 #define RUN_ASSP                0x01
350 #define ENABLE_ASSP_CLOCK       0x00
351 #define STOP_ASSP_CLOCK         0x10
352 #define RESET_TOGGLE            0x40
353 
354 #define ASSP_CONTROL_C          0xA6
355 #define ASSP_HOST_INT_ENABLE    0x01
356 #define FM_ADDR_REMAP_DISABLE   0x02
357 #define HOST_WRITE_PORT_ENABLE  0x08
358 
359 #define ASSP_HOST_INT_STATUS    0xAC
360 #define DSP2HOST_REQ_PIORECORD  0x01
361 #define DSP2HOST_REQ_I2SRATE    0x02
362 #define DSP2HOST_REQ_TIMER      0x04
363 
364 /* AC97 registers */
365 /* XXX fix this crap up */
366 /*#define AC97_RESET              0x00*/
367 
368 #define AC97_VOL_MUTE_B         0x8000
369 #define AC97_VOL_M              0x1F
370 #define AC97_LEFT_VOL_S         8
371 
372 #define AC97_MASTER_VOL         0x02
373 #define AC97_LINE_LEVEL_VOL     0x04
374 #define AC97_MASTER_MONO_VOL    0x06
375 #define AC97_PC_BEEP_VOL        0x0A
376 #define AC97_PC_BEEP_VOL_M      0x0F
377 #define AC97_SROUND_MASTER_VOL  0x38
378 #define AC97_PC_BEEP_VOL_S      1
379 
380 /*#define AC97_PHONE_VOL          0x0C
381 #define AC97_MIC_VOL            0x0E*/
382 #define AC97_MIC_20DB_ENABLE    0x40
383 
384 /*#define AC97_LINEIN_VOL         0x10
385 #define AC97_CD_VOL             0x12
386 #define AC97_VIDEO_VOL          0x14
387 #define AC97_AUX_VOL            0x16*/
388 #define AC97_PCM_OUT_VOL        0x18
389 /*#define AC97_RECORD_SELECT      0x1A*/
390 #define AC97_RECORD_MIC         0x00
391 #define AC97_RECORD_CD          0x01
392 #define AC97_RECORD_VIDEO       0x02
393 #define AC97_RECORD_AUX         0x03
394 #define AC97_RECORD_MONO_MUX    0x02
395 #define AC97_RECORD_DIGITAL     0x03
396 #define AC97_RECORD_LINE        0x04
397 #define AC97_RECORD_STEREO      0x05
398 #define AC97_RECORD_MONO        0x06
399 #define AC97_RECORD_PHONE       0x07
400 
401 /*#define AC97_RECORD_GAIN        0x1C*/
402 #define AC97_RECORD_VOL_M       0x0F
403 
404 /*#define AC97_GENERAL_PURPOSE    0x20*/
405 #define AC97_POWER_DOWN_CTRL    0x26
406 #define AC97_ADC_READY          0x0001
407 #define AC97_DAC_READY          0x0002
408 #define AC97_ANALOG_READY       0x0004
409 #define AC97_VREF_ON            0x0008
410 #define AC97_PR0                0x0100
411 #define AC97_PR1                0x0200
412 #define AC97_PR2                0x0400
413 #define AC97_PR3                0x0800
414 #define AC97_PR4                0x1000
415 
416 #define AC97_RESERVED1          0x28
417 
418 #define AC97_VENDOR_TEST        0x5A
419 
420 #define AC97_CLOCK_DELAY        0x5C
421 #define AC97_LINEOUT_MUX_SEL    0x0001
422 #define AC97_MONO_MUX_SEL       0x0002
423 #define AC97_CLOCK_DELAY_SEL    0x1F
424 #define AC97_DAC_CDS_SHIFT      6
425 #define AC97_ADC_CDS_SHIFT      11
426 
427 #define AC97_MULTI_CHANNEL_SEL  0x74
428 
429 /*#define AC97_VENDOR_ID1         0x7C
430 #define AC97_VENDOR_ID2         0x7E*/
431 
432 /*
433  * ASSP control regs
434  */
435 #define DSP_PORT_TIMER_COUNT    0x06
436 
437 #define DSP_PORT_MEMORY_INDEX   0x80
438 
439 #define DSP_PORT_MEMORY_TYPE    0x82
440 #define MEMTYPE_INTERNAL_CODE   0x0002
441 #define MEMTYPE_INTERNAL_DATA   0x0003
442 #define MEMTYPE_MASK            0x0003
443 
444 #define DSP_PORT_MEMORY_DATA    0x84
445 
446 #define DSP_PORT_CONTROL_REG_A  0xA2
447 #define DSP_PORT_CONTROL_REG_B  0xA4
448 #define DSP_PORT_CONTROL_REG_C  0xA6
449 
450 #define REV_A_CODE_MEMORY_BEGIN         0x0000
451 #define REV_A_CODE_MEMORY_END           0x0FFF
452 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
453 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
454 
455 #define REV_B_CODE_MEMORY_BEGIN         0x0000
456 #define REV_B_CODE_MEMORY_END           0x0BFF
457 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
458 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
459 
460 #define REV_A_DATA_MEMORY_BEGIN         0x1000
461 #define REV_A_DATA_MEMORY_END           0x2FFF
462 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
463 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
464 
465 #define REV_B_DATA_MEMORY_BEGIN         0x1000
466 #define REV_B_DATA_MEMORY_END           0x2BFF
467 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
468 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
469 
470 
471 #define NUM_UNITS_KERNEL_CODE          16
472 #define NUM_UNITS_KERNEL_DATA           2
473 
474 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
475 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
476 
477 /*
478  * Kernel data layout
479  */
480 
481 #define DP_SHIFT_COUNT                  7
482 
483 #define KDATA_BASE_ADDR                 0x1000
484 #define KDATA_BASE_ADDR2                0x1080
485 
486 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
487 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
488 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
489 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
490 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
491 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
492 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
493 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
494 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
495 
496 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
497 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
498 
499 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
500 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
501 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
502 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
503 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
504 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
505 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
506 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
507 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
508 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
509 
510 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
511 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
512 
513 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
514 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
515 
516 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
517 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
518 
519 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
520 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
521 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
522 
523 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
524 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
525 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
526 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
527 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
528 
529 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
530 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
531 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
532 
533 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
534 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
535 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
536 
537 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
538 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
539 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
540 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
541 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
542 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
543 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
544 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
545 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
546 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
547 
548 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
549 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
550 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
551 
552 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
553 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
554 
555 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
556 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
557 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
558 
559 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
560 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
561 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
562 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
563 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
564 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
565 
566 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
567 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
568 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
569 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
570 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
571 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
572 
573 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
574 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
575 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
576 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
577 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
578 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
579 
580 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
581 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
582 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
583 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
584 
585 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
586 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
587 
588 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
589 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
590 
591 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
592 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
593 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
594 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
595 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
596 
597 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
598 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
599 
600 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
601 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
602 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
603 
604 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
605 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
606 
607 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
608 
609 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
610 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
611 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
612 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
613 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
614 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
615 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
616 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
617 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
618 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
619 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
620 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
621 
622 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
623 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
624 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
625 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
626 
627 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
628 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
629 
630 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
631 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
632 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
633 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
634 
635 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
636 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
637 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
638 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
639 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
640 
641 /*
642  * second 'segment' (?) reserved for mixer
643  * buffers..
644  */
645 
646 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
647 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
648 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
649 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
650 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
651 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
652 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
653 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
654 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
655 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
656 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
657 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
658 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
659 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
660 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
661 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
662 
663 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
664 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
665 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
666 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
667 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
668 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
669 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
670 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
671 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
672 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
673 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
674 
675 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
676 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
677 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
678 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
679 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
680 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
681 
682 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
683 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
684 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
685 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
686 
687 /*
688  * client data area offsets
689  */
690 #define CDATA_INSTANCE_READY            0x00
691 
692 #define CDATA_HOST_SRC_ADDRL            0x01
693 #define CDATA_HOST_SRC_ADDRH            0x02
694 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
695 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
696 #define CDATA_HOST_SRC_CURRENTL         0x05
697 #define CDATA_HOST_SRC_CURRENTH         0x06
698 
699 #define CDATA_IN_BUF_CONNECT            0x07
700 #define CDATA_OUT_BUF_CONNECT           0x08
701 
702 #define CDATA_IN_BUF_BEGIN              0x09
703 #define CDATA_IN_BUF_END_PLUS_1         0x0A
704 #define CDATA_IN_BUF_HEAD               0x0B
705 #define CDATA_IN_BUF_TAIL               0x0C
706 #define CDATA_OUT_BUF_BEGIN             0x0D
707 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
708 #define CDATA_OUT_BUF_HEAD              0x0F
709 #define CDATA_OUT_BUF_TAIL              0x10
710 
711 #define CDATA_DMA_CONTROL               0x11
712 #define CDATA_RESERVED                  0x12
713 
714 #define CDATA_FREQUENCY                 0x13
715 #define CDATA_LEFT_VOLUME               0x14
716 #define CDATA_RIGHT_VOLUME              0x15
717 #define CDATA_LEFT_SUR_VOL              0x16
718 #define CDATA_RIGHT_SUR_VOL             0x17
719 
720 #define CDATA_HEADER_LEN                0x18
721 
722 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
723 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
724 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
725 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
726 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
727 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
728 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
729 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
730 
731 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
732 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
733 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
734 #define MINISRC_BIQUAD_STAGE    2
735 #define MINISRC_COEF_LOC          0x175
736 
737 #define DMACONTROL_BLOCK_MASK           0x000F
738 #define  DMAC_BLOCK0_SELECTOR           0x0000
739 #define  DMAC_BLOCK1_SELECTOR           0x0001
740 #define  DMAC_BLOCK2_SELECTOR           0x0002
741 #define  DMAC_BLOCK3_SELECTOR           0x0003
742 #define  DMAC_BLOCK4_SELECTOR           0x0004
743 #define  DMAC_BLOCK5_SELECTOR           0x0005
744 #define  DMAC_BLOCK6_SELECTOR           0x0006
745 #define  DMAC_BLOCK7_SELECTOR           0x0007
746 #define  DMAC_BLOCK8_SELECTOR           0x0008
747 #define  DMAC_BLOCK9_SELECTOR           0x0009
748 #define  DMAC_BLOCKA_SELECTOR           0x000A
749 #define  DMAC_BLOCKB_SELECTOR           0x000B
750 #define  DMAC_BLOCKC_SELECTOR           0x000C
751 #define  DMAC_BLOCKD_SELECTOR           0x000D
752 #define  DMAC_BLOCKE_SELECTOR           0x000E
753 #define  DMAC_BLOCKF_SELECTOR           0x000F
754 #define DMACONTROL_PAGE_MASK            0x00F0
755 #define  DMAC_PAGE0_SELECTOR            0x0030
756 #define  DMAC_PAGE1_SELECTOR            0x0020
757 #define  DMAC_PAGE2_SELECTOR            0x0010
758 #define  DMAC_PAGE3_SELECTOR            0x0000
759 #define DMACONTROL_AUTOREPEAT           0x1000
760 #define DMACONTROL_STOPPED              0x2000
761 #define DMACONTROL_DIRECTION            0x0100
762 
763 /*
764  * an arbitrary volume we set the internal
765  * volume settings to so that the ac97 volume
766  * range is a little less insane.  0x7fff is
767  * max.
768  */
769 #define ARB_VOLUME ( 0x6800 )
770 
771 /*
772  */
773 
774 struct m3_list {
775 	int curlen;
776 	int mem_addr;
777 	int max;
778 };
779 
780 struct m3_dma {
781 
782 	int number;
783 	struct snd_pcm_substream *substream;
784 
785 	struct assp_instance {
786 		unsigned short code, data;
787 	} inst;
788 
789 	int running;
790 	int opened;
791 
792 	unsigned long buffer_addr;
793 	int dma_size;
794 	int period_size;
795 	unsigned int hwptr;
796 	int count;
797 
798 	int index[3];
799 	struct m3_list *index_list[3];
800 
801         int in_lists;
802 
803 	struct list_head list;
804 
805 };
806 
807 struct snd_m3 {
808 
809 	struct snd_card *card;
810 
811 	unsigned long iobase;
812 
813 	int irq;
814 	unsigned int allegro_flag : 1;
815 
816 	struct snd_ac97 *ac97;
817 
818 	struct snd_pcm *pcm;
819 
820 	struct pci_dev *pci;
821 
822 	int dacs_active;
823 	int timer_users;
824 
825 	struct m3_list  msrc_list;
826 	struct m3_list  mixer_list;
827 	struct m3_list  adc1_list;
828 	struct m3_list  dma_list;
829 
830 	/* for storing reset state..*/
831 	u8 reset_state;
832 
833 	int external_amp;
834 	int amp_gpio;	/* gpio pin #  for external amp, -1 = default */
835 	unsigned int hv_config;		/* hardware-volume config bits */
836 	unsigned irda_workaround :1;	/* avoid to touch 0x10 on GPIO_DIRECTION
837 					   (e.g. for IrDA on Dell Inspirons) */
838 	unsigned is_omnibook :1;	/* Do HP OmniBook GPIO magic? */
839 
840 	/* midi */
841 	struct snd_rawmidi *rmidi;
842 
843 	/* pcm streams */
844 	int num_substreams;
845 	struct m3_dma *substreams;
846 
847 	spinlock_t reg_lock;
848 
849 #ifdef CONFIG_SND_MAESTRO3_INPUT
850 	struct input_dev *input_dev;
851 	char phys[64];			/* physical device path */
852 #else
853 	struct snd_kcontrol *master_switch;
854 	struct snd_kcontrol *master_volume;
855 #endif
856 	struct work_struct hwvol_work;
857 
858 	unsigned int in_suspend;
859 
860 #ifdef CONFIG_PM
861 	u16 *suspend_mem;
862 #endif
863 
864 	const struct firmware *assp_kernel_image;
865 	const struct firmware *assp_minisrc_image;
866 };
867 
868 /*
869  * pci ids
870  */
871 static DEFINE_PCI_DEVICE_TABLE(snd_m3_ids) = {
872 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
873 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
874 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
875 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
876 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
877 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
878 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
879 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
880 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
881 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
882 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
883 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
884 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
885 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
886 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
887 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
888 	{0,},
889 };
890 
891 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
892 
893 static struct snd_pci_quirk m3_amp_quirk_list[] __devinitdata = {
894 	SND_PCI_QUIRK(0x0E11, 0x0094, "Compaq Evo N600c", 0x0c),
895 	SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
896 	SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
897 	SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),
898 	SND_PCI_QUIRK(0x1509, 0x1740, "LEGEND ZhaoYang 3100CF", 0x03),
899 	{ } /* END */
900 };
901 
902 static struct snd_pci_quirk m3_irda_quirk_list[] __devinitdata = {
903 	SND_PCI_QUIRK(0x1028, 0x00b0, "Dell Inspiron 4000", 1),
904 	SND_PCI_QUIRK(0x1028, 0x00a4, "Dell Inspiron 8000", 1),
905 	SND_PCI_QUIRK(0x1028, 0x00e6, "Dell Inspiron 8100", 1),
906 	{ } /* END */
907 };
908 
909 /* hardware volume quirks */
910 static struct snd_pci_quirk m3_hv_quirk_list[] __devinitdata = {
911 	/* Allegro chips */
912 	SND_PCI_QUIRK(0x0E11, 0x002E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
913 	SND_PCI_QUIRK(0x0E11, 0x0094, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
914 	SND_PCI_QUIRK(0x0E11, 0xB112, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
915 	SND_PCI_QUIRK(0x0E11, 0xB114, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
916 	SND_PCI_QUIRK(0x103C, 0x0012, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
917 	SND_PCI_QUIRK(0x103C, 0x0018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
918 	SND_PCI_QUIRK(0x103C, 0x001C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
919 	SND_PCI_QUIRK(0x103C, 0x001D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
920 	SND_PCI_QUIRK(0x103C, 0x001E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
921 	SND_PCI_QUIRK(0x107B, 0x3350, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
922 	SND_PCI_QUIRK(0x10F7, 0x8338, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
923 	SND_PCI_QUIRK(0x10F7, 0x833C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
924 	SND_PCI_QUIRK(0x10F7, 0x833D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
925 	SND_PCI_QUIRK(0x10F7, 0x833E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
926 	SND_PCI_QUIRK(0x10F7, 0x833F, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
927 	SND_PCI_QUIRK(0x13BD, 0x1018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
928 	SND_PCI_QUIRK(0x13BD, 0x1019, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
929 	SND_PCI_QUIRK(0x13BD, 0x101A, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
930 	SND_PCI_QUIRK(0x14FF, 0x0F03, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
931 	SND_PCI_QUIRK(0x14FF, 0x0F04, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
932 	SND_PCI_QUIRK(0x14FF, 0x0F05, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
933 	SND_PCI_QUIRK(0x156D, 0xB400, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
934 	SND_PCI_QUIRK(0x156D, 0xB795, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
935 	SND_PCI_QUIRK(0x156D, 0xB797, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
936 	SND_PCI_QUIRK(0x156D, 0xC700, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
937 	SND_PCI_QUIRK(0x1033, 0x80F1, NULL,
938 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
939 	SND_PCI_QUIRK(0x103C, 0x001A, NULL, /* HP OmniBook 6100 */
940 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
941 	SND_PCI_QUIRK(0x107B, 0x340A, NULL,
942 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
943 	SND_PCI_QUIRK(0x107B, 0x3450, NULL,
944 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
945 	SND_PCI_QUIRK(0x109F, 0x3134, NULL,
946 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
947 	SND_PCI_QUIRK(0x109F, 0x3161, NULL,
948 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
949 	SND_PCI_QUIRK(0x144D, 0x3280, NULL,
950 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
951 	SND_PCI_QUIRK(0x144D, 0x3281, NULL,
952 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
953 	SND_PCI_QUIRK(0x144D, 0xC002, NULL,
954 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
955 	SND_PCI_QUIRK(0x144D, 0xC003, NULL,
956 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
957 	SND_PCI_QUIRK(0x1509, 0x1740, NULL,
958 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
959 	SND_PCI_QUIRK(0x1610, 0x0010, NULL,
960 		      HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
961 	SND_PCI_QUIRK(0x1042, 0x1042, NULL, HV_CTRL_ENABLE),
962 	SND_PCI_QUIRK(0x107B, 0x9500, NULL, HV_CTRL_ENABLE),
963 	SND_PCI_QUIRK(0x14FF, 0x0F06, NULL, HV_CTRL_ENABLE),
964 	SND_PCI_QUIRK(0x1558, 0x8586, NULL, HV_CTRL_ENABLE),
965 	SND_PCI_QUIRK(0x161F, 0x2011, NULL, HV_CTRL_ENABLE),
966 	/* Maestro3 chips */
967 	SND_PCI_QUIRK(0x103C, 0x000E, NULL, HV_CTRL_ENABLE),
968 	SND_PCI_QUIRK(0x103C, 0x0010, NULL, HV_CTRL_ENABLE),
969 	SND_PCI_QUIRK(0x103C, 0x0011, NULL, HV_CTRL_ENABLE),
970 	SND_PCI_QUIRK(0x103C, 0x001B, NULL, HV_CTRL_ENABLE),
971 	SND_PCI_QUIRK(0x104D, 0x80A6, NULL, HV_CTRL_ENABLE),
972 	SND_PCI_QUIRK(0x104D, 0x80AA, NULL, HV_CTRL_ENABLE),
973 	SND_PCI_QUIRK(0x107B, 0x5300, NULL, HV_CTRL_ENABLE),
974 	SND_PCI_QUIRK(0x110A, 0x1998, NULL, HV_CTRL_ENABLE),
975 	SND_PCI_QUIRK(0x13BD, 0x1015, NULL, HV_CTRL_ENABLE),
976 	SND_PCI_QUIRK(0x13BD, 0x101C, NULL, HV_CTRL_ENABLE),
977 	SND_PCI_QUIRK(0x13BD, 0x1802, NULL, HV_CTRL_ENABLE),
978 	SND_PCI_QUIRK(0x1599, 0x0715, NULL, HV_CTRL_ENABLE),
979 	SND_PCI_QUIRK(0x5643, 0x5643, NULL, HV_CTRL_ENABLE),
980 	SND_PCI_QUIRK(0x144D, 0x3260, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
981 	SND_PCI_QUIRK(0x144D, 0x3261, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
982 	SND_PCI_QUIRK(0x144D, 0xC000, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
983 	SND_PCI_QUIRK(0x144D, 0xC001, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
984 	{ } /* END */
985 };
986 
987 /* HP Omnibook quirks */
988 static struct snd_pci_quirk m3_omnibook_quirk_list[] __devinitdata = {
989 	SND_PCI_QUIRK_ID(0x103c, 0x0010), /* HP OmniBook 6000 */
990 	SND_PCI_QUIRK_ID(0x103c, 0x0011), /* HP OmniBook 500 */
991 	{ } /* END */
992 };
993 
994 /*
995  * lowlevel functions
996  */
997 
998 static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
999 {
1000 	outw(value, chip->iobase + reg);
1001 }
1002 
1003 static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
1004 {
1005 	return inw(chip->iobase + reg);
1006 }
1007 
1008 static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
1009 {
1010 	outb(value, chip->iobase + reg);
1011 }
1012 
1013 static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
1014 {
1015 	return inb(chip->iobase + reg);
1016 }
1017 
1018 /*
1019  * access 16bit words to the code or data regions of the dsp's memory.
1020  * index addresses 16bit words.
1021  */
1022 static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
1023 {
1024 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1025 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1026 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1027 }
1028 
1029 static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
1030 {
1031 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1032 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1033 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1034 }
1035 
1036 static void snd_m3_assp_halt(struct snd_m3 *chip)
1037 {
1038 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1039 	msleep(10);
1040 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1041 }
1042 
1043 static void snd_m3_assp_continue(struct snd_m3 *chip)
1044 {
1045 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1046 }
1047 
1048 
1049 /*
1050  * This makes me sad. the maestro3 has lists
1051  * internally that must be packed.. 0 terminates,
1052  * apparently, or maybe all unused entries have
1053  * to be 0, the lists have static lengths set
1054  * by the binary code images.
1055  */
1056 
1057 static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
1058 {
1059 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1060 			  list->mem_addr + list->curlen,
1061 			  val);
1062 	return list->curlen++;
1063 }
1064 
1065 static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
1066 {
1067 	u16  val;
1068 	int lastindex = list->curlen - 1;
1069 
1070 	if (index != lastindex) {
1071 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1072 				       list->mem_addr + lastindex);
1073 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1074 				  list->mem_addr + index,
1075 				  val);
1076 	}
1077 
1078 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1079 			  list->mem_addr + lastindex,
1080 			  0);
1081 
1082 	list->curlen--;
1083 }
1084 
1085 static void snd_m3_inc_timer_users(struct snd_m3 *chip)
1086 {
1087 	chip->timer_users++;
1088 	if (chip->timer_users != 1)
1089 		return;
1090 
1091 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1092 			  KDATA_TIMER_COUNT_RELOAD,
1093 			  240);
1094 
1095 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1096 			  KDATA_TIMER_COUNT_CURRENT,
1097 			  240);
1098 
1099 	snd_m3_outw(chip,
1100 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1101 		    HOST_INT_CTRL);
1102 }
1103 
1104 static void snd_m3_dec_timer_users(struct snd_m3 *chip)
1105 {
1106 	chip->timer_users--;
1107 	if (chip->timer_users > 0)
1108 		return;
1109 
1110 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1111 			  KDATA_TIMER_COUNT_RELOAD,
1112 			  0);
1113 
1114 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1115 			  KDATA_TIMER_COUNT_CURRENT,
1116 			  0);
1117 
1118 	snd_m3_outw(chip,
1119 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1120 		    HOST_INT_CTRL);
1121 }
1122 
1123 /*
1124  * start/stop
1125  */
1126 
1127 /* spinlock held! */
1128 static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
1129 			    struct snd_pcm_substream *subs)
1130 {
1131 	if (! s || ! subs)
1132 		return -EINVAL;
1133 
1134 	snd_m3_inc_timer_users(chip);
1135 	switch (subs->stream) {
1136 	case SNDRV_PCM_STREAM_PLAYBACK:
1137 		chip->dacs_active++;
1138 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1139 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1140 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1141 				  KDATA_MIXER_TASK_NUMBER,
1142 				  chip->dacs_active);
1143 		break;
1144 	case SNDRV_PCM_STREAM_CAPTURE:
1145 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1146 				  KDATA_ADC1_REQUEST, 1);
1147 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1148 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1149 		break;
1150 	}
1151 	return 0;
1152 }
1153 
1154 /* spinlock held! */
1155 static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
1156 			   struct snd_pcm_substream *subs)
1157 {
1158 	if (! s || ! subs)
1159 		return -EINVAL;
1160 
1161 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1162 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1163 	snd_m3_dec_timer_users(chip);
1164 	switch (subs->stream) {
1165 	case SNDRV_PCM_STREAM_PLAYBACK:
1166 		chip->dacs_active--;
1167 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1168 				  KDATA_MIXER_TASK_NUMBER,
1169 				  chip->dacs_active);
1170 		break;
1171 	case SNDRV_PCM_STREAM_CAPTURE:
1172 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1173 				  KDATA_ADC1_REQUEST, 0);
1174 		break;
1175 	}
1176 	return 0;
1177 }
1178 
1179 static int
1180 snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
1181 {
1182 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1183 	struct m3_dma *s = subs->runtime->private_data;
1184 	int err = -EINVAL;
1185 
1186 	if (snd_BUG_ON(!s))
1187 		return -ENXIO;
1188 
1189 	spin_lock(&chip->reg_lock);
1190 	switch (cmd) {
1191 	case SNDRV_PCM_TRIGGER_START:
1192 	case SNDRV_PCM_TRIGGER_RESUME:
1193 		if (s->running)
1194 			err = -EBUSY;
1195 		else {
1196 			s->running = 1;
1197 			err = snd_m3_pcm_start(chip, s, subs);
1198 		}
1199 		break;
1200 	case SNDRV_PCM_TRIGGER_STOP:
1201 	case SNDRV_PCM_TRIGGER_SUSPEND:
1202 		if (! s->running)
1203 			err = 0; /* should return error? */
1204 		else {
1205 			s->running = 0;
1206 			err = snd_m3_pcm_stop(chip, s, subs);
1207 		}
1208 		break;
1209 	}
1210 	spin_unlock(&chip->reg_lock);
1211 	return err;
1212 }
1213 
1214 /*
1215  * setup
1216  */
1217 static void
1218 snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1219 {
1220 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1221 	struct snd_pcm_runtime *runtime = subs->runtime;
1222 
1223 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1224 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1225 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1226 	} else {
1227 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1228 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1229 	}
1230 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1231 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1232 
1233 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1234 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1235 	s->hwptr = 0;
1236 	s->count = 0;
1237 
1238 #define LO(x) ((x) & 0xffff)
1239 #define HI(x) LO((x) >> 16)
1240 
1241 	/* host dma buffer pointers */
1242 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1243 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1244 			  LO(s->buffer_addr));
1245 
1246 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1247 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1248 			  HI(s->buffer_addr));
1249 
1250 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1251 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1252 			  LO(s->buffer_addr + s->dma_size));
1253 
1254 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1255 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1256 			  HI(s->buffer_addr + s->dma_size));
1257 
1258 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1259 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1260 			  LO(s->buffer_addr));
1261 
1262 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1263 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1264 			  HI(s->buffer_addr));
1265 #undef LO
1266 #undef HI
1267 
1268 	/* dsp buffers */
1269 
1270 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1271 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1272 			  dsp_in_buffer);
1273 
1274 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1275 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1276 			  dsp_in_buffer + (dsp_in_size / 2));
1277 
1278 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1279 			  s->inst.data + CDATA_IN_BUF_HEAD,
1280 			  dsp_in_buffer);
1281 
1282 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1283 			  s->inst.data + CDATA_IN_BUF_TAIL,
1284 			  dsp_in_buffer);
1285 
1286 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1287 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1288 			  dsp_out_buffer);
1289 
1290 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1291 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1292 			  dsp_out_buffer + (dsp_out_size / 2));
1293 
1294 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1295 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1296 			  dsp_out_buffer);
1297 
1298 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1299 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1300 			  dsp_out_buffer);
1301 }
1302 
1303 static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
1304 			      struct snd_pcm_runtime *runtime)
1305 {
1306 	u32 freq;
1307 
1308 	/*
1309 	 * put us in the lists if we're not already there
1310 	 */
1311 	if (! s->in_lists) {
1312 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1313 					      s->inst.data >> DP_SHIFT_COUNT);
1314 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1315 					      s->inst.data >> DP_SHIFT_COUNT);
1316 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1317 					      s->inst.data >> DP_SHIFT_COUNT);
1318 		s->in_lists = 1;
1319 	}
1320 
1321 	/* write to 'mono' word */
1322 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1323 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1324 			  runtime->channels == 2 ? 0 : 1);
1325 	/* write to '8bit' word */
1326 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1327 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1328 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1329 
1330 	/* set up dac/adc rate */
1331 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1332 	if (freq)
1333 		freq--;
1334 
1335 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1336 			  s->inst.data + CDATA_FREQUENCY,
1337 			  freq);
1338 }
1339 
1340 
1341 static const struct play_vals {
1342 	u16 addr, val;
1343 } pv[] = {
1344 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1345 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1346 	{SRC3_DIRECTION_OFFSET, 0} ,
1347 	/* +1, +2 are stereo/16 bit */
1348 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1349 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1350 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1351 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1352 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1353 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1354 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1355 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1356 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1357 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1358 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1359 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1360 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1361 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1362 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1363 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1364 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1365 };
1366 
1367 
1368 /* the mode passed should be already shifted and masked */
1369 static void
1370 snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
1371 		      struct snd_pcm_substream *subs)
1372 {
1373 	unsigned int i;
1374 
1375 	/*
1376 	 * some per client initializers
1377 	 */
1378 
1379 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1380 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1381 			  s->inst.data + 40 + 8);
1382 
1383 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1384 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1385 			  s->inst.code + MINISRC_COEF_LOC);
1386 
1387 	/* enable or disable low pass filter? */
1388 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1389 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1390 			  subs->runtime->rate > 45000 ? 0xff : 0);
1391 
1392 	/* tell it which way dma is going? */
1393 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1394 			  s->inst.data + CDATA_DMA_CONTROL,
1395 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1396 
1397 	/*
1398 	 * set an armload of static initializers
1399 	 */
1400 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1401 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1402 				  s->inst.data + pv[i].addr, pv[i].val);
1403 }
1404 
1405 /*
1406  *    Native record driver
1407  */
1408 static const struct rec_vals {
1409 	u16 addr, val;
1410 } rv[] = {
1411 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1412 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1413 	{SRC3_DIRECTION_OFFSET, 1} ,
1414 	/* +1, +2 are stereo/16 bit */
1415 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1416 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1417 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1418 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1419 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1420 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1421 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1422 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1423 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1424 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1425 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1426 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1427 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1428 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1429 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1430 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1431 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1432 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1433 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1434 };
1435 
1436 static void
1437 snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1438 {
1439 	unsigned int i;
1440 
1441 	/*
1442 	 * some per client initializers
1443 	 */
1444 
1445 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1446 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1447 			  s->inst.data + 40 + 8);
1448 
1449 	/* tell it which way dma is going? */
1450 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1451 			  s->inst.data + CDATA_DMA_CONTROL,
1452 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1453 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1454 
1455 	/*
1456 	 * set an armload of static initializers
1457 	 */
1458 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1459 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1460 				  s->inst.data + rv[i].addr, rv[i].val);
1461 }
1462 
1463 static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
1464 				struct snd_pcm_hw_params *hw_params)
1465 {
1466 	struct m3_dma *s = substream->runtime->private_data;
1467 	int err;
1468 
1469 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1470 		return err;
1471 	/* set buffer address */
1472 	s->buffer_addr = substream->runtime->dma_addr;
1473 	if (s->buffer_addr & 0x3) {
1474 		snd_printk(KERN_ERR "oh my, not aligned\n");
1475 		s->buffer_addr = s->buffer_addr & ~0x3;
1476 	}
1477 	return 0;
1478 }
1479 
1480 static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
1481 {
1482 	struct m3_dma *s;
1483 
1484 	if (substream->runtime->private_data == NULL)
1485 		return 0;
1486 	s = substream->runtime->private_data;
1487 	snd_pcm_lib_free_pages(substream);
1488 	s->buffer_addr = 0;
1489 	return 0;
1490 }
1491 
1492 static int
1493 snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
1494 {
1495 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1496 	struct snd_pcm_runtime *runtime = subs->runtime;
1497 	struct m3_dma *s = runtime->private_data;
1498 
1499 	if (snd_BUG_ON(!s))
1500 		return -ENXIO;
1501 
1502 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1503 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1504 		return -EINVAL;
1505 	if (runtime->rate > 48000 ||
1506 	    runtime->rate < 8000)
1507 		return -EINVAL;
1508 
1509 	spin_lock_irq(&chip->reg_lock);
1510 
1511 	snd_m3_pcm_setup1(chip, s, subs);
1512 
1513 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1514 		snd_m3_playback_setup(chip, s, subs);
1515 	else
1516 		snd_m3_capture_setup(chip, s, subs);
1517 
1518 	snd_m3_pcm_setup2(chip, s, runtime);
1519 
1520 	spin_unlock_irq(&chip->reg_lock);
1521 
1522 	return 0;
1523 }
1524 
1525 /*
1526  * get current pointer
1527  */
1528 static unsigned int
1529 snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1530 {
1531 	u16 hi = 0, lo = 0;
1532 	int retry = 10;
1533 	u32 addr;
1534 
1535 	/*
1536 	 * try and get a valid answer
1537 	 */
1538 	while (retry--) {
1539 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1540 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1541 
1542 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1543 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1544 
1545 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1546 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1547 			break;
1548 	}
1549 	addr = lo | ((u32)hi<<16);
1550 	return (unsigned int)(addr - s->buffer_addr);
1551 }
1552 
1553 static snd_pcm_uframes_t
1554 snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
1555 {
1556 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1557 	unsigned int ptr;
1558 	struct m3_dma *s = subs->runtime->private_data;
1559 
1560 	if (snd_BUG_ON(!s))
1561 		return 0;
1562 
1563 	spin_lock(&chip->reg_lock);
1564 	ptr = snd_m3_get_pointer(chip, s, subs);
1565 	spin_unlock(&chip->reg_lock);
1566 	return bytes_to_frames(subs->runtime, ptr);
1567 }
1568 
1569 
1570 /* update pointer */
1571 /* spinlock held! */
1572 static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
1573 {
1574 	struct snd_pcm_substream *subs = s->substream;
1575 	unsigned int hwptr;
1576 	int diff;
1577 
1578 	if (! s->running)
1579 		return;
1580 
1581 	hwptr = snd_m3_get_pointer(chip, s, subs);
1582 
1583 	/* try to avoid expensive modulo divisions */
1584 	if (hwptr >= s->dma_size)
1585 		hwptr %= s->dma_size;
1586 
1587 	diff = s->dma_size + hwptr - s->hwptr;
1588 	if (diff >= s->dma_size)
1589 		diff %= s->dma_size;
1590 
1591 	s->hwptr = hwptr;
1592 	s->count += diff;
1593 
1594 	if (s->count >= (signed)s->period_size) {
1595 
1596 		if (s->count < 2 * (signed)s->period_size)
1597 			s->count -= (signed)s->period_size;
1598 		else
1599 			s->count %= s->period_size;
1600 
1601 		spin_unlock(&chip->reg_lock);
1602 		snd_pcm_period_elapsed(subs);
1603 		spin_lock(&chip->reg_lock);
1604 	}
1605 }
1606 
1607 /* The m3's hardware volume works by incrementing / decrementing 2 counters
1608    (without wrap around) in response to volume button presses and then
1609    generating an interrupt. The pair of counters is stored in bits 1-3 and 5-7
1610    of a byte wide register. The meaning of bits 0 and 4 is unknown. */
1611 static void snd_m3_update_hw_volume(struct work_struct *work)
1612 {
1613 	struct snd_m3 *chip = container_of(work, struct snd_m3, hwvol_work);
1614 	int x, val;
1615 
1616 	/* Figure out which volume control button was pushed,
1617 	   based on differences from the default register
1618 	   values. */
1619 	x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1620 
1621 	/* Reset the volume counters to 4. Tests on the allegro integrated
1622 	   into a Compaq N600C laptop, have revealed that:
1623 	   1) Writing any value will result in the 2 counters being reset to
1624 	      4 so writing 0x88 is not strictly necessary
1625 	   2) Writing to any of the 4 involved registers will reset all 4
1626 	      of them (and reading them always returns the same value for all
1627 	      of them)
1628 	   It could be that a maestro deviates from this, so leave the code
1629 	   as is. */
1630 	outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1631 	outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1632 	outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1633 	outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1634 
1635 	/* Ignore spurious HV interrupts during suspend / resume, this avoids
1636 	   mistaking them for a mute button press. */
1637 	if (chip->in_suspend)
1638 		return;
1639 
1640 #ifndef CONFIG_SND_MAESTRO3_INPUT
1641 	if (!chip->master_switch || !chip->master_volume)
1642 		return;
1643 
1644 	val = snd_ac97_read(chip->ac97, AC97_MASTER);
1645 	switch (x) {
1646 	case 0x88:
1647 		/* The counters have not changed, yet we've received a HV
1648 		   interrupt. According to tests run by various people this
1649 		   happens when pressing the mute button. */
1650 		val ^= 0x8000;
1651 		break;
1652 	case 0xaa:
1653 		/* counters increased by 1 -> volume up */
1654 		if ((val & 0x7f) > 0)
1655 			val--;
1656 		if ((val & 0x7f00) > 0)
1657 			val -= 0x0100;
1658 		break;
1659 	case 0x66:
1660 		/* counters decreased by 1 -> volume down */
1661 		if ((val & 0x7f) < 0x1f)
1662 			val++;
1663 		if ((val & 0x7f00) < 0x1f00)
1664 			val += 0x0100;
1665 		break;
1666 	}
1667 	if (snd_ac97_update(chip->ac97, AC97_MASTER, val))
1668 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1669 			       &chip->master_switch->id);
1670 #else
1671 	if (!chip->input_dev)
1672 		return;
1673 
1674 	val = 0;
1675 	switch (x) {
1676 	case 0x88:
1677 		/* The counters have not changed, yet we've received a HV
1678 		   interrupt. According to tests run by various people this
1679 		   happens when pressing the mute button. */
1680 		val = KEY_MUTE;
1681 		break;
1682 	case 0xaa:
1683 		/* counters increased by 1 -> volume up */
1684 		val = KEY_VOLUMEUP;
1685 		break;
1686 	case 0x66:
1687 		/* counters decreased by 1 -> volume down */
1688 		val = KEY_VOLUMEDOWN;
1689 		break;
1690 	}
1691 
1692 	if (val) {
1693 		input_report_key(chip->input_dev, val, 1);
1694 		input_sync(chip->input_dev);
1695 		input_report_key(chip->input_dev, val, 0);
1696 		input_sync(chip->input_dev);
1697 	}
1698 #endif
1699 }
1700 
1701 static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
1702 {
1703 	struct snd_m3 *chip = dev_id;
1704 	u8 status;
1705 	int i;
1706 
1707 	status = inb(chip->iobase + HOST_INT_STATUS);
1708 
1709 	if (status == 0xff)
1710 		return IRQ_NONE;
1711 
1712 	if (status & HV_INT_PENDING)
1713 		schedule_work(&chip->hwvol_work);
1714 
1715 	/*
1716 	 * ack an assp int if its running
1717 	 * and has an int pending
1718 	 */
1719 	if (status & ASSP_INT_PENDING) {
1720 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1721 		if (!(ctl & STOP_ASSP_CLOCK)) {
1722 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1723 			if (ctl & DSP2HOST_REQ_TIMER) {
1724 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1725 				/* update adc/dac info if it was a timer int */
1726 				spin_lock(&chip->reg_lock);
1727 				for (i = 0; i < chip->num_substreams; i++) {
1728 					struct m3_dma *s = &chip->substreams[i];
1729 					if (s->running)
1730 						snd_m3_update_ptr(chip, s);
1731 				}
1732 				spin_unlock(&chip->reg_lock);
1733 			}
1734 		}
1735 	}
1736 
1737 #if 0 /* TODO: not supported yet */
1738 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1739 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1740 #endif
1741 
1742 	/* ack ints */
1743 	outb(status, chip->iobase + HOST_INT_STATUS);
1744 
1745 	return IRQ_HANDLED;
1746 }
1747 
1748 
1749 /*
1750  */
1751 
1752 static struct snd_pcm_hardware snd_m3_playback =
1753 {
1754 	.info =			(SNDRV_PCM_INFO_MMAP |
1755 				 SNDRV_PCM_INFO_INTERLEAVED |
1756 				 SNDRV_PCM_INFO_MMAP_VALID |
1757 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1758 				 /*SNDRV_PCM_INFO_PAUSE |*/
1759 				 SNDRV_PCM_INFO_RESUME),
1760 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1761 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1762 	.rate_min =		8000,
1763 	.rate_max =		48000,
1764 	.channels_min =		1,
1765 	.channels_max =		2,
1766 	.buffer_bytes_max =	(512*1024),
1767 	.period_bytes_min =	64,
1768 	.period_bytes_max =	(512*1024),
1769 	.periods_min =		1,
1770 	.periods_max =		1024,
1771 };
1772 
1773 static struct snd_pcm_hardware snd_m3_capture =
1774 {
1775 	.info =			(SNDRV_PCM_INFO_MMAP |
1776 				 SNDRV_PCM_INFO_INTERLEAVED |
1777 				 SNDRV_PCM_INFO_MMAP_VALID |
1778 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1779 				 /*SNDRV_PCM_INFO_PAUSE |*/
1780 				 SNDRV_PCM_INFO_RESUME),
1781 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1782 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1783 	.rate_min =		8000,
1784 	.rate_max =		48000,
1785 	.channels_min =		1,
1786 	.channels_max =		2,
1787 	.buffer_bytes_max =	(512*1024),
1788 	.period_bytes_min =	64,
1789 	.period_bytes_max =	(512*1024),
1790 	.periods_min =		1,
1791 	.periods_max =		1024,
1792 };
1793 
1794 
1795 /*
1796  */
1797 
1798 static int
1799 snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1800 {
1801 	int i;
1802 	struct m3_dma *s;
1803 
1804 	spin_lock_irq(&chip->reg_lock);
1805 	for (i = 0; i < chip->num_substreams; i++) {
1806 		s = &chip->substreams[i];
1807 		if (! s->opened)
1808 			goto __found;
1809 	}
1810 	spin_unlock_irq(&chip->reg_lock);
1811 	return -ENOMEM;
1812 __found:
1813 	s->opened = 1;
1814 	s->running = 0;
1815 	spin_unlock_irq(&chip->reg_lock);
1816 
1817 	subs->runtime->private_data = s;
1818 	s->substream = subs;
1819 
1820 	/* set list owners */
1821 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1822 		s->index_list[0] = &chip->mixer_list;
1823 	} else
1824 		s->index_list[0] = &chip->adc1_list;
1825 	s->index_list[1] = &chip->msrc_list;
1826 	s->index_list[2] = &chip->dma_list;
1827 
1828 	return 0;
1829 }
1830 
1831 static void
1832 snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1833 {
1834 	struct m3_dma *s = subs->runtime->private_data;
1835 
1836 	if (s == NULL)
1837 		return; /* not opened properly */
1838 
1839 	spin_lock_irq(&chip->reg_lock);
1840 	if (s->substream && s->running)
1841 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1842 	if (s->in_lists) {
1843 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1844 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1845 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1846 		s->in_lists = 0;
1847 	}
1848 	s->running = 0;
1849 	s->opened = 0;
1850 	spin_unlock_irq(&chip->reg_lock);
1851 }
1852 
1853 static int
1854 snd_m3_playback_open(struct snd_pcm_substream *subs)
1855 {
1856 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1857 	struct snd_pcm_runtime *runtime = subs->runtime;
1858 	int err;
1859 
1860 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1861 		return err;
1862 
1863 	runtime->hw = snd_m3_playback;
1864 
1865 	return 0;
1866 }
1867 
1868 static int
1869 snd_m3_playback_close(struct snd_pcm_substream *subs)
1870 {
1871 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1872 
1873 	snd_m3_substream_close(chip, subs);
1874 	return 0;
1875 }
1876 
1877 static int
1878 snd_m3_capture_open(struct snd_pcm_substream *subs)
1879 {
1880 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1881 	struct snd_pcm_runtime *runtime = subs->runtime;
1882 	int err;
1883 
1884 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1885 		return err;
1886 
1887 	runtime->hw = snd_m3_capture;
1888 
1889 	return 0;
1890 }
1891 
1892 static int
1893 snd_m3_capture_close(struct snd_pcm_substream *subs)
1894 {
1895 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1896 
1897 	snd_m3_substream_close(chip, subs);
1898 	return 0;
1899 }
1900 
1901 /*
1902  * create pcm instance
1903  */
1904 
1905 static struct snd_pcm_ops snd_m3_playback_ops = {
1906 	.open =		snd_m3_playback_open,
1907 	.close =	snd_m3_playback_close,
1908 	.ioctl =	snd_pcm_lib_ioctl,
1909 	.hw_params =	snd_m3_pcm_hw_params,
1910 	.hw_free =	snd_m3_pcm_hw_free,
1911 	.prepare =	snd_m3_pcm_prepare,
1912 	.trigger =	snd_m3_pcm_trigger,
1913 	.pointer =	snd_m3_pcm_pointer,
1914 };
1915 
1916 static struct snd_pcm_ops snd_m3_capture_ops = {
1917 	.open =		snd_m3_capture_open,
1918 	.close =	snd_m3_capture_close,
1919 	.ioctl =	snd_pcm_lib_ioctl,
1920 	.hw_params =	snd_m3_pcm_hw_params,
1921 	.hw_free =	snd_m3_pcm_hw_free,
1922 	.prepare =	snd_m3_pcm_prepare,
1923 	.trigger =	snd_m3_pcm_trigger,
1924 	.pointer =	snd_m3_pcm_pointer,
1925 };
1926 
1927 static int __devinit
1928 snd_m3_pcm(struct snd_m3 * chip, int device)
1929 {
1930 	struct snd_pcm *pcm;
1931 	int err;
1932 
1933 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1934 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1935 	if (err < 0)
1936 		return err;
1937 
1938 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1939 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1940 
1941 	pcm->private_data = chip;
1942 	pcm->info_flags = 0;
1943 	strcpy(pcm->name, chip->card->driver);
1944 	chip->pcm = pcm;
1945 
1946 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1947 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1948 
1949 	return 0;
1950 }
1951 
1952 
1953 /*
1954  * ac97 interface
1955  */
1956 
1957 /*
1958  * Wait for the ac97 serial bus to be free.
1959  * return nonzero if the bus is still busy.
1960  */
1961 static int snd_m3_ac97_wait(struct snd_m3 *chip)
1962 {
1963 	int i = 10000;
1964 
1965 	do {
1966 		if (! (snd_m3_inb(chip, 0x30) & 1))
1967 			return 0;
1968 		cpu_relax();
1969 	} while (i-- > 0);
1970 
1971 	snd_printk(KERN_ERR "ac97 serial bus busy\n");
1972 	return 1;
1973 }
1974 
1975 static unsigned short
1976 snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1977 {
1978 	struct snd_m3 *chip = ac97->private_data;
1979 	unsigned short data = 0xffff;
1980 
1981 	if (snd_m3_ac97_wait(chip))
1982 		goto fail;
1983 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1984 	if (snd_m3_ac97_wait(chip))
1985 		goto fail;
1986 	data = snd_m3_inw(chip, CODEC_DATA);
1987 fail:
1988 	return data;
1989 }
1990 
1991 static void
1992 snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
1993 {
1994 	struct snd_m3 *chip = ac97->private_data;
1995 
1996 	if (snd_m3_ac97_wait(chip))
1997 		return;
1998 	snd_m3_outw(chip, val, CODEC_DATA);
1999 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
2000 }
2001 
2002 
2003 static void snd_m3_remote_codec_config(int io, int isremote)
2004 {
2005 	isremote = isremote ? 1 : 0;
2006 
2007 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
2008 	     io + RING_BUS_CTRL_B);
2009 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
2010 	     io + SDO_OUT_DEST_CTRL);
2011 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
2012 	     io + SDO_IN_DEST_CTRL);
2013 }
2014 
2015 /*
2016  * hack, returns non zero on err
2017  */
2018 static int snd_m3_try_read_vendor(struct snd_m3 *chip)
2019 {
2020 	u16 ret;
2021 
2022 	if (snd_m3_ac97_wait(chip))
2023 		return 1;
2024 
2025 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
2026 
2027 	if (snd_m3_ac97_wait(chip))
2028 		return 1;
2029 
2030 	ret = snd_m3_inw(chip, 0x32);
2031 
2032 	return (ret == 0) || (ret == 0xffff);
2033 }
2034 
2035 static void snd_m3_ac97_reset(struct snd_m3 *chip)
2036 {
2037 	u16 dir;
2038 	int delay1 = 0, delay2 = 0, i;
2039 	int io = chip->iobase;
2040 
2041 	if (chip->allegro_flag) {
2042 		/*
2043 		 * the onboard codec on the allegro seems
2044 		 * to want to wait a very long time before
2045 		 * coming back to life
2046 		 */
2047 		delay1 = 50;
2048 		delay2 = 800;
2049 	} else {
2050 		/* maestro3 */
2051 		delay1 = 20;
2052 		delay2 = 500;
2053 	}
2054 
2055 	for (i = 0; i < 5; i++) {
2056 		dir = inw(io + GPIO_DIRECTION);
2057 		if (!chip->irda_workaround)
2058 			dir |= 0x10; /* assuming pci bus master? */
2059 
2060 		snd_m3_remote_codec_config(io, 0);
2061 
2062 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
2063 		udelay(20);
2064 
2065 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
2066 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
2067 		outw(0, io + GPIO_DATA);
2068 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
2069 
2070 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));
2071 
2072 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
2073 		udelay(5);
2074 		/* ok, bring back the ac-link */
2075 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2076 		outw(~0, io + GPIO_MASK);
2077 
2078 		schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));
2079 
2080 		if (! snd_m3_try_read_vendor(chip))
2081 			break;
2082 
2083 		delay1 += 10;
2084 		delay2 += 100;
2085 
2086 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
2087 			   delay1, delay2);
2088 	}
2089 
2090 #if 0
2091 	/* more gung-ho reset that doesn't
2092 	 * seem to work anywhere :)
2093 	 */
2094 	tmp = inw(io + RING_BUS_CTRL_A);
2095 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2096 	msleep(20);
2097 	outw(tmp, io + RING_BUS_CTRL_A);
2098 	msleep(50);
2099 #endif
2100 }
2101 
2102 static int __devinit snd_m3_mixer(struct snd_m3 *chip)
2103 {
2104 	struct snd_ac97_bus *pbus;
2105 	struct snd_ac97_template ac97;
2106 #ifndef CONFIG_SND_MAESTRO3_INPUT
2107 	struct snd_ctl_elem_id elem_id;
2108 #endif
2109 	int err;
2110 	static struct snd_ac97_bus_ops ops = {
2111 		.write = snd_m3_ac97_write,
2112 		.read = snd_m3_ac97_read,
2113 	};
2114 
2115 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
2116 		return err;
2117 
2118 	memset(&ac97, 0, sizeof(ac97));
2119 	ac97.private_data = chip;
2120 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2121 		return err;
2122 
2123 	/* seems ac97 PCM needs initialization.. hack hack.. */
2124 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2125 	schedule_timeout_uninterruptible(msecs_to_jiffies(100));
2126 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
2127 
2128 #ifndef CONFIG_SND_MAESTRO3_INPUT
2129 	memset(&elem_id, 0, sizeof(elem_id));
2130 	elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2131 	strcpy(elem_id.name, "Master Playback Switch");
2132 	chip->master_switch = snd_ctl_find_id(chip->card, &elem_id);
2133 	memset(&elem_id, 0, sizeof(elem_id));
2134 	elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2135 	strcpy(elem_id.name, "Master Playback Volume");
2136 	chip->master_volume = snd_ctl_find_id(chip->card, &elem_id);
2137 #endif
2138 
2139 	return 0;
2140 }
2141 
2142 
2143 /*
2144  * initialize ASSP
2145  */
2146 
2147 #define MINISRC_LPF_LEN 10
2148 static const u16 minisrc_lpf[MINISRC_LPF_LEN] = {
2149 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2150 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2151 };
2152 
2153 static void snd_m3_assp_init(struct snd_m3 *chip)
2154 {
2155 	unsigned int i;
2156 	const u16 *data;
2157 
2158 	/* zero kernel data */
2159 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2160 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2161 				  KDATA_BASE_ADDR + i, 0);
2162 
2163 	/* zero mixer data? */
2164 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2165 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2166 				  KDATA_BASE_ADDR2 + i, 0);
2167 
2168 	/* init dma pointer */
2169 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2170 			  KDATA_CURRENT_DMA,
2171 			  KDATA_DMA_XFER0);
2172 
2173 	/* write kernel into code memory.. */
2174 	data = (const u16 *)chip->assp_kernel_image->data;
2175 	for (i = 0 ; i * 2 < chip->assp_kernel_image->size; i++) {
2176 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2177 				  REV_B_CODE_MEMORY_BEGIN + i,
2178 				  le16_to_cpu(data[i]));
2179 	}
2180 
2181 	/*
2182 	 * We only have this one client and we know that 0x400
2183 	 * is free in our kernel's mem map, so lets just
2184 	 * drop it there.  It seems that the minisrc doesn't
2185 	 * need vectors, so we won't bother with them..
2186 	 */
2187 	data = (const u16 *)chip->assp_minisrc_image->data;
2188 	for (i = 0; i * 2 < chip->assp_minisrc_image->size; i++) {
2189 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2190 				  0x400 + i, le16_to_cpu(data[i]));
2191 	}
2192 
2193 	/*
2194 	 * write the coefficients for the low pass filter?
2195 	 */
2196 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2197 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2198 				  0x400 + MINISRC_COEF_LOC + i,
2199 				  minisrc_lpf[i]);
2200 	}
2201 
2202 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2203 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2204 			  0x8000);
2205 
2206 	/*
2207 	 * the minisrc is the only thing on
2208 	 * our task list..
2209 	 */
2210 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2211 			  KDATA_TASK0,
2212 			  0x400);
2213 
2214 	/*
2215 	 * init the mixer number..
2216 	 */
2217 
2218 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2219 			  KDATA_MIXER_TASK_NUMBER,0);
2220 
2221 	/*
2222 	 * EXTREME KERNEL MASTER VOLUME
2223 	 */
2224 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2225 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2226 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2227 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2228 
2229 	chip->mixer_list.curlen = 0;
2230 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2231 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2232 	chip->adc1_list.curlen = 0;
2233 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2234 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2235 	chip->dma_list.curlen = 0;
2236 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2237 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2238 	chip->msrc_list.curlen = 0;
2239 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2240 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2241 }
2242 
2243 
2244 static int __devinit snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
2245 {
2246 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2247 			       MINISRC_IN_BUFFER_SIZE / 2 +
2248 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2249 	int address, i;
2250 
2251 	/*
2252 	 * the revb memory map has 0x1100 through 0x1c00
2253 	 * free.
2254 	 */
2255 
2256 	/*
2257 	 * align instance address to 256 bytes so that its
2258 	 * shifted list address is aligned.
2259 	 * list address = (mem address >> 1) >> 7;
2260 	 */
2261 	data_bytes = ALIGN(data_bytes, 256);
2262 	address = 0x1100 + ((data_bytes/2) * index);
2263 
2264 	if ((address + (data_bytes/2)) >= 0x1c00) {
2265 		snd_printk(KERN_ERR "no memory for %d bytes at ind %d (addr 0x%x)\n",
2266 			   data_bytes, index, address);
2267 		return -ENOMEM;
2268 	}
2269 
2270 	s->number = index;
2271 	s->inst.code = 0x400;
2272 	s->inst.data = address;
2273 
2274 	for (i = data_bytes / 2; i > 0; address++, i--) {
2275 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2276 				  address, 0);
2277 	}
2278 
2279 	return 0;
2280 }
2281 
2282 
2283 /*
2284  * this works for the reference board, have to find
2285  * out about others
2286  *
2287  * this needs more magic for 4 speaker, but..
2288  */
2289 static void
2290 snd_m3_amp_enable(struct snd_m3 *chip, int enable)
2291 {
2292 	int io = chip->iobase;
2293 	u16 gpo, polarity;
2294 
2295 	if (! chip->external_amp)
2296 		return;
2297 
2298 	polarity = enable ? 0 : 1;
2299 	polarity = polarity << chip->amp_gpio;
2300 	gpo = 1 << chip->amp_gpio;
2301 
2302 	outw(~gpo, io + GPIO_MASK);
2303 
2304 	outw(inw(io + GPIO_DIRECTION) | gpo,
2305 	     io + GPIO_DIRECTION);
2306 
2307 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2308 	     io + GPIO_DATA);
2309 
2310 	outw(0xffff, io + GPIO_MASK);
2311 }
2312 
2313 static void
2314 snd_m3_hv_init(struct snd_m3 *chip)
2315 {
2316 	unsigned long io = chip->iobase;
2317 	u16 val = GPI_VOL_DOWN | GPI_VOL_UP;
2318 
2319 	if (!chip->is_omnibook)
2320 		return;
2321 
2322 	/*
2323 	 * Volume buttons on some HP OmniBook laptops
2324 	 * require some GPIO magic to work correctly.
2325 	 */
2326 	outw(0xffff, io + GPIO_MASK);
2327 	outw(0x0000, io + GPIO_DATA);
2328 
2329 	outw(~val, io + GPIO_MASK);
2330 	outw(inw(io + GPIO_DIRECTION) & ~val, io + GPIO_DIRECTION);
2331 	outw(val, io + GPIO_MASK);
2332 
2333 	outw(0xffff, io + GPIO_MASK);
2334 }
2335 
2336 static int
2337 snd_m3_chip_init(struct snd_m3 *chip)
2338 {
2339 	struct pci_dev *pcidev = chip->pci;
2340 	unsigned long io = chip->iobase;
2341 	u32 n;
2342 	u16 w;
2343 	u8 t; /* makes as much sense as 'n', no? */
2344 
2345 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2346 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2347 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2348 	       DISABLE_LEGACY);
2349 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2350 
2351 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2352 	n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2353 	n |= chip->hv_config;
2354 	/* For some reason we must always use reduced debounce. */
2355 	n |= REDUCED_DEBOUNCE;
2356 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2357 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2358 
2359 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2360 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2361 	n &= ~INT_CLK_SELECT;
2362 	if (!chip->allegro_flag) {
2363 		n &= ~INT_CLK_MULT_ENABLE;
2364 		n |= INT_CLK_SRC_NOT_PCI;
2365 	}
2366 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2367 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2368 
2369 	if (chip->allegro_flag) {
2370 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2371 		n |= IN_CLK_12MHZ_SELECT;
2372 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2373 	}
2374 
2375 	t = inb(chip->iobase + ASSP_CONTROL_A);
2376 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2377 	t |= ASSP_CLK_49MHZ_SELECT;
2378 	t |= ASSP_0_WS_ENABLE;
2379 	outb(t, chip->iobase + ASSP_CONTROL_A);
2380 
2381 	snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
2382 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2383 
2384 	outb(0x00, io + HARDWARE_VOL_CTRL);
2385 	outb(0x88, io + SHADOW_MIX_REG_VOICE);
2386 	outb(0x88, io + HW_VOL_COUNTER_VOICE);
2387 	outb(0x88, io + SHADOW_MIX_REG_MASTER);
2388 	outb(0x88, io + HW_VOL_COUNTER_MASTER);
2389 
2390 	return 0;
2391 }
2392 
2393 static void
2394 snd_m3_enable_ints(struct snd_m3 *chip)
2395 {
2396 	unsigned long io = chip->iobase;
2397 	unsigned short val;
2398 
2399 	/* TODO: MPU401 not supported yet */
2400 	val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2401 	if (chip->hv_config & HV_CTRL_ENABLE)
2402 		val |= HV_INT_ENABLE;
2403 	outb(val, chip->iobase + HOST_INT_STATUS);
2404 	outw(val, io + HOST_INT_CTRL);
2405 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2406 	     io + ASSP_CONTROL_C);
2407 }
2408 
2409 
2410 /*
2411  */
2412 
2413 static int snd_m3_free(struct snd_m3 *chip)
2414 {
2415 	struct m3_dma *s;
2416 	int i;
2417 
2418 	cancel_work_sync(&chip->hwvol_work);
2419 #ifdef CONFIG_SND_MAESTRO3_INPUT
2420 	if (chip->input_dev)
2421 		input_unregister_device(chip->input_dev);
2422 #endif
2423 
2424 	if (chip->substreams) {
2425 		spin_lock_irq(&chip->reg_lock);
2426 		for (i = 0; i < chip->num_substreams; i++) {
2427 			s = &chip->substreams[i];
2428 			/* check surviving pcms; this should not happen though.. */
2429 			if (s->substream && s->running)
2430 				snd_m3_pcm_stop(chip, s, s->substream);
2431 		}
2432 		spin_unlock_irq(&chip->reg_lock);
2433 		kfree(chip->substreams);
2434 	}
2435 	if (chip->iobase) {
2436 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2437 	}
2438 
2439 #ifdef CONFIG_PM
2440 	vfree(chip->suspend_mem);
2441 #endif
2442 
2443 	if (chip->irq >= 0)
2444 		free_irq(chip->irq, chip);
2445 
2446 	if (chip->iobase)
2447 		pci_release_regions(chip->pci);
2448 
2449 	release_firmware(chip->assp_kernel_image);
2450 	release_firmware(chip->assp_minisrc_image);
2451 
2452 	pci_disable_device(chip->pci);
2453 	kfree(chip);
2454 	return 0;
2455 }
2456 
2457 
2458 /*
2459  * APM support
2460  */
2461 #ifdef CONFIG_PM
2462 static int m3_suspend(struct pci_dev *pci, pm_message_t state)
2463 {
2464 	struct snd_card *card = pci_get_drvdata(pci);
2465 	struct snd_m3 *chip = card->private_data;
2466 	int i, dsp_index;
2467 
2468 	if (chip->suspend_mem == NULL)
2469 		return 0;
2470 
2471 	chip->in_suspend = 1;
2472 	cancel_work_sync(&chip->hwvol_work);
2473 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2474 	snd_pcm_suspend_all(chip->pcm);
2475 	snd_ac97_suspend(chip->ac97);
2476 
2477 	msleep(10); /* give the assp a chance to idle.. */
2478 
2479 	snd_m3_assp_halt(chip);
2480 
2481 	/* save dsp image */
2482 	dsp_index = 0;
2483 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2484 		chip->suspend_mem[dsp_index++] =
2485 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2486 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2487 		chip->suspend_mem[dsp_index++] =
2488 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2489 
2490 	pci_disable_device(pci);
2491 	pci_save_state(pci);
2492 	pci_set_power_state(pci, pci_choose_state(pci, state));
2493 	return 0;
2494 }
2495 
2496 static int m3_resume(struct pci_dev *pci)
2497 {
2498 	struct snd_card *card = pci_get_drvdata(pci);
2499 	struct snd_m3 *chip = card->private_data;
2500 	int i, dsp_index;
2501 
2502 	if (chip->suspend_mem == NULL)
2503 		return 0;
2504 
2505 	pci_set_power_state(pci, PCI_D0);
2506 	pci_restore_state(pci);
2507 	if (pci_enable_device(pci) < 0) {
2508 		printk(KERN_ERR "maestor3: pci_enable_device failed, "
2509 		       "disabling device\n");
2510 		snd_card_disconnect(card);
2511 		return -EIO;
2512 	}
2513 	pci_set_master(pci);
2514 
2515 	/* first lets just bring everything back. .*/
2516 	snd_m3_outw(chip, 0, 0x54);
2517 	snd_m3_outw(chip, 0, 0x56);
2518 
2519 	snd_m3_chip_init(chip);
2520 	snd_m3_assp_halt(chip);
2521 	snd_m3_ac97_reset(chip);
2522 
2523 	/* restore dsp image */
2524 	dsp_index = 0;
2525 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2526 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2527 				  chip->suspend_mem[dsp_index++]);
2528 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2529 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2530 				  chip->suspend_mem[dsp_index++]);
2531 
2532 	/* tell the dma engine to restart itself */
2533 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2534 			  KDATA_DMA_ACTIVE, 0);
2535 
2536         /* restore ac97 registers */
2537 	snd_ac97_resume(chip->ac97);
2538 
2539 	snd_m3_assp_continue(chip);
2540 	snd_m3_enable_ints(chip);
2541 	snd_m3_amp_enable(chip, 1);
2542 
2543 	snd_m3_hv_init(chip);
2544 
2545 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2546 	chip->in_suspend = 0;
2547 	return 0;
2548 }
2549 #endif /* CONFIG_PM */
2550 
2551 #ifdef CONFIG_SND_MAESTRO3_INPUT
2552 static int __devinit snd_m3_input_register(struct snd_m3 *chip)
2553 {
2554 	struct input_dev *input_dev;
2555 	int err;
2556 
2557 	input_dev = input_allocate_device();
2558 	if (!input_dev)
2559 		return -ENOMEM;
2560 
2561 	snprintf(chip->phys, sizeof(chip->phys), "pci-%s/input0",
2562 		 pci_name(chip->pci));
2563 
2564 	input_dev->name = chip->card->driver;
2565 	input_dev->phys = chip->phys;
2566 	input_dev->id.bustype = BUS_PCI;
2567 	input_dev->id.vendor  = chip->pci->vendor;
2568 	input_dev->id.product = chip->pci->device;
2569 	input_dev->dev.parent = &chip->pci->dev;
2570 
2571 	__set_bit(EV_KEY, input_dev->evbit);
2572 	__set_bit(KEY_MUTE, input_dev->keybit);
2573 	__set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
2574 	__set_bit(KEY_VOLUMEUP, input_dev->keybit);
2575 
2576 	err = input_register_device(input_dev);
2577 	if (err) {
2578 		input_free_device(input_dev);
2579 		return err;
2580 	}
2581 
2582 	chip->input_dev = input_dev;
2583 	return 0;
2584 }
2585 #endif /* CONFIG_INPUT */
2586 
2587 /*
2588  */
2589 
2590 static int snd_m3_dev_free(struct snd_device *device)
2591 {
2592 	struct snd_m3 *chip = device->device_data;
2593 	return snd_m3_free(chip);
2594 }
2595 
2596 static int __devinit
2597 snd_m3_create(struct snd_card *card, struct pci_dev *pci,
2598 	      int enable_amp,
2599 	      int amp_gpio,
2600 	      struct snd_m3 **chip_ret)
2601 {
2602 	struct snd_m3 *chip;
2603 	int i, err;
2604 	const struct snd_pci_quirk *quirk;
2605 	static struct snd_device_ops ops = {
2606 		.dev_free =	snd_m3_dev_free,
2607 	};
2608 
2609 	*chip_ret = NULL;
2610 
2611 	if (pci_enable_device(pci))
2612 		return -EIO;
2613 
2614 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2615 	if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
2616 	    pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
2617 		snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
2618 		pci_disable_device(pci);
2619 		return -ENXIO;
2620 	}
2621 
2622 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2623 	if (chip == NULL) {
2624 		pci_disable_device(pci);
2625 		return -ENOMEM;
2626 	}
2627 
2628 	spin_lock_init(&chip->reg_lock);
2629 
2630 	switch (pci->device) {
2631 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2632 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2633 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2634 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2635 		chip->allegro_flag = 1;
2636 		break;
2637 	}
2638 
2639 	chip->card = card;
2640 	chip->pci = pci;
2641 	chip->irq = -1;
2642 	INIT_WORK(&chip->hwvol_work, snd_m3_update_hw_volume);
2643 
2644 	chip->external_amp = enable_amp;
2645 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2646 		chip->amp_gpio = amp_gpio;
2647 	else {
2648 		quirk = snd_pci_quirk_lookup(pci, m3_amp_quirk_list);
2649 		if (quirk) {
2650 			snd_printdd(KERN_INFO "maestro3: set amp-gpio "
2651 				    "for '%s'\n", quirk->name);
2652 			chip->amp_gpio = quirk->value;
2653 		} else if (chip->allegro_flag)
2654 			chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2655 		else /* presumably this is for all 'maestro3's.. */
2656 			chip->amp_gpio = GPO_EXT_AMP_M3;
2657 	}
2658 
2659 	quirk = snd_pci_quirk_lookup(pci, m3_irda_quirk_list);
2660 	if (quirk) {
2661 		snd_printdd(KERN_INFO "maestro3: enabled irda workaround "
2662 			    "for '%s'\n", quirk->name);
2663 		chip->irda_workaround = 1;
2664 	}
2665 	quirk = snd_pci_quirk_lookup(pci, m3_hv_quirk_list);
2666 	if (quirk)
2667 		chip->hv_config = quirk->value;
2668 	if (snd_pci_quirk_lookup(pci, m3_omnibook_quirk_list))
2669 		chip->is_omnibook = 1;
2670 
2671 	chip->num_substreams = NR_DSPS;
2672 	chip->substreams = kcalloc(chip->num_substreams, sizeof(struct m3_dma),
2673 				   GFP_KERNEL);
2674 	if (chip->substreams == NULL) {
2675 		kfree(chip);
2676 		pci_disable_device(pci);
2677 		return -ENOMEM;
2678 	}
2679 
2680 	err = request_firmware(&chip->assp_kernel_image,
2681 			       "ess/maestro3_assp_kernel.fw", &pci->dev);
2682 	if (err < 0) {
2683 		snd_m3_free(chip);
2684 		return err;
2685 	}
2686 
2687 	err = request_firmware(&chip->assp_minisrc_image,
2688 			       "ess/maestro3_assp_minisrc.fw", &pci->dev);
2689 	if (err < 0) {
2690 		snd_m3_free(chip);
2691 		return err;
2692 	}
2693 
2694 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2695 		snd_m3_free(chip);
2696 		return err;
2697 	}
2698 	chip->iobase = pci_resource_start(pci, 0);
2699 
2700 	/* just to be sure */
2701 	pci_set_master(pci);
2702 
2703 	snd_m3_chip_init(chip);
2704 	snd_m3_assp_halt(chip);
2705 
2706 	snd_m3_ac97_reset(chip);
2707 
2708 	snd_m3_amp_enable(chip, 1);
2709 
2710 	snd_m3_hv_init(chip);
2711 
2712 	if (request_irq(pci->irq, snd_m3_interrupt, IRQF_SHARED,
2713 			KBUILD_MODNAME, chip)) {
2714 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2715 		snd_m3_free(chip);
2716 		return -ENOMEM;
2717 	}
2718 	chip->irq = pci->irq;
2719 
2720 #ifdef CONFIG_PM
2721 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2722 	if (chip->suspend_mem == NULL)
2723 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2724 #endif
2725 
2726 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2727 		snd_m3_free(chip);
2728 		return err;
2729 	}
2730 
2731 	if ((err = snd_m3_mixer(chip)) < 0)
2732 		return err;
2733 
2734 	for (i = 0; i < chip->num_substreams; i++) {
2735 		struct m3_dma *s = &chip->substreams[i];
2736 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2737 			return err;
2738 	}
2739 
2740 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2741 		return err;
2742 
2743 #ifdef CONFIG_SND_MAESTRO3_INPUT
2744 	if (chip->hv_config & HV_CTRL_ENABLE) {
2745 		err = snd_m3_input_register(chip);
2746 		if (err)
2747 			snd_printk(KERN_WARNING "Input device registration "
2748 				"failed with error %i", err);
2749 	}
2750 #endif
2751 
2752 	snd_m3_enable_ints(chip);
2753 	snd_m3_assp_continue(chip);
2754 
2755 	snd_card_set_dev(card, &pci->dev);
2756 
2757 	*chip_ret = chip;
2758 
2759 	return 0;
2760 }
2761 
2762 /*
2763  */
2764 static int __devinit
2765 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2766 {
2767 	static int dev;
2768 	struct snd_card *card;
2769 	struct snd_m3 *chip;
2770 	int err;
2771 
2772 	/* don't pick up modems */
2773 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2774 		return -ENODEV;
2775 
2776 	if (dev >= SNDRV_CARDS)
2777 		return -ENODEV;
2778 	if (!enable[dev]) {
2779 		dev++;
2780 		return -ENOENT;
2781 	}
2782 
2783 	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2784 	if (err < 0)
2785 		return err;
2786 
2787 	switch (pci->device) {
2788 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2789 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2790 		strcpy(card->driver, "Allegro");
2791 		break;
2792 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2793 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2794 		strcpy(card->driver, "Canyon3D-2");
2795 		break;
2796 	default:
2797 		strcpy(card->driver, "Maestro3");
2798 		break;
2799 	}
2800 
2801 	if ((err = snd_m3_create(card, pci,
2802 				 external_amp[dev],
2803 				 amp_gpio[dev],
2804 				 &chip)) < 0) {
2805 		snd_card_free(card);
2806 		return err;
2807 	}
2808 	card->private_data = chip;
2809 
2810 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2811 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2812 		card->shortname, chip->iobase, chip->irq);
2813 
2814 	if ((err = snd_card_register(card)) < 0) {
2815 		snd_card_free(card);
2816 		return err;
2817 	}
2818 
2819 #if 0 /* TODO: not supported yet */
2820 	/* TODO enable MIDI IRQ and I/O */
2821 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2822 				  chip->iobase + MPU401_DATA_PORT,
2823 				  MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK,
2824 				  -1, &chip->rmidi);
2825 	if (err < 0)
2826 		printk(KERN_WARNING "maestro3: no MIDI support.\n");
2827 #endif
2828 
2829 	pci_set_drvdata(pci, card);
2830 	dev++;
2831 	return 0;
2832 }
2833 
2834 static void __devexit snd_m3_remove(struct pci_dev *pci)
2835 {
2836 	snd_card_free(pci_get_drvdata(pci));
2837 	pci_set_drvdata(pci, NULL);
2838 }
2839 
2840 static struct pci_driver driver = {
2841 	.name = KBUILD_MODNAME,
2842 	.id_table = snd_m3_ids,
2843 	.probe = snd_m3_probe,
2844 	.remove = __devexit_p(snd_m3_remove),
2845 #ifdef CONFIG_PM
2846 	.suspend = m3_suspend,
2847 	.resume = m3_resume,
2848 #endif
2849 };
2850 
2851 static int __init alsa_card_m3_init(void)
2852 {
2853 	return pci_register_driver(&driver);
2854 }
2855 
2856 static void __exit alsa_card_m3_exit(void)
2857 {
2858 	pci_unregister_driver(&driver);
2859 }
2860 
2861 module_init(alsa_card_m3_init)
2862 module_exit(alsa_card_m3_exit)
2863