xref: /openbmc/linux/sound/pci/maestro3.c (revision 01d25d460a3b28aab537fab9a0038d1b5832ce28)
1 /*
2  * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
3  * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
4  *                       Takashi Iwai <tiwai@suse.de>
5  *
6  * Most of the hardware init stuffs are based on maestro3 driver for
7  * OSS/Free by Zach Brown.  Many thanks to Zach!
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  *
24  * ChangeLog:
25  * Aug. 27, 2001
26  *     - Fixed deadlock on capture
27  *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
28  *
29  */
30 
31 #define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
32 #define DRIVER_NAME "Maestro3"
33 
34 #include <sound/driver.h>
35 #include <asm/io.h>
36 #include <linux/delay.h>
37 #include <linux/interrupt.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/slab.h>
41 #include <linux/vmalloc.h>
42 #include <linux/moduleparam.h>
43 #include <sound/core.h>
44 #include <sound/info.h>
45 #include <sound/control.h>
46 #include <sound/pcm.h>
47 #include <sound/mpu401.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/initval.h>
50 
51 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
52 MODULE_DESCRIPTION("ESS Maestro3 PCI");
53 MODULE_LICENSE("GPL");
54 MODULE_SUPPORTED_DEVICE("{{ESS,Maestro3 PCI},"
55 		"{ESS,ES1988},"
56 		"{ESS,Allegro PCI},"
57 		"{ESS,Allegro-1 PCI},"
58 	        "{ESS,Canyon3D-2/LE PCI}}");
59 
60 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
61 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
62 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
63 static int external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
64 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
65 
66 module_param_array(index, int, NULL, 0444);
67 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
68 module_param_array(id, charp, NULL, 0444);
69 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
70 module_param_array(enable, bool, NULL, 0444);
71 MODULE_PARM_DESC(enable, "Enable this soundcard.");
72 module_param_array(external_amp, bool, NULL, 0444);
73 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
74 module_param_array(amp_gpio, int, NULL, 0444);
75 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
76 
77 #define MAX_PLAYBACKS	2
78 #define MAX_CAPTURES	1
79 #define NR_DSPS		(MAX_PLAYBACKS + MAX_CAPTURES)
80 
81 
82 /*
83  * maestro3 registers
84  */
85 
86 /* Allegro PCI configuration registers */
87 #define PCI_LEGACY_AUDIO_CTRL   0x40
88 #define SOUND_BLASTER_ENABLE    0x00000001
89 #define FM_SYNTHESIS_ENABLE     0x00000002
90 #define GAME_PORT_ENABLE        0x00000004
91 #define MPU401_IO_ENABLE        0x00000008
92 #define MPU401_IRQ_ENABLE       0x00000010
93 #define ALIAS_10BIT_IO          0x00000020
94 #define SB_DMA_MASK             0x000000C0
95 #define SB_DMA_0                0x00000040
96 #define SB_DMA_1                0x00000040
97 #define SB_DMA_R                0x00000080
98 #define SB_DMA_3                0x000000C0
99 #define SB_IRQ_MASK             0x00000700
100 #define SB_IRQ_5                0x00000000
101 #define SB_IRQ_7                0x00000100
102 #define SB_IRQ_9                0x00000200
103 #define SB_IRQ_10               0x00000300
104 #define MIDI_IRQ_MASK           0x00003800
105 #define SERIAL_IRQ_ENABLE       0x00004000
106 #define DISABLE_LEGACY          0x00008000
107 
108 #define PCI_ALLEGRO_CONFIG      0x50
109 #define SB_ADDR_240             0x00000004
110 #define MPU_ADDR_MASK           0x00000018
111 #define MPU_ADDR_330            0x00000000
112 #define MPU_ADDR_300            0x00000008
113 #define MPU_ADDR_320            0x00000010
114 #define MPU_ADDR_340            0x00000018
115 #define USE_PCI_TIMING          0x00000040
116 #define POSTED_WRITE_ENABLE     0x00000080
117 #define DMA_POLICY_MASK         0x00000700
118 #define DMA_DDMA                0x00000000
119 #define DMA_TDMA                0x00000100
120 #define DMA_PCPCI               0x00000200
121 #define DMA_WBDMA16             0x00000400
122 #define DMA_WBDMA4              0x00000500
123 #define DMA_WBDMA2              0x00000600
124 #define DMA_WBDMA1              0x00000700
125 #define DMA_SAFE_GUARD          0x00000800
126 #define HI_PERF_GP_ENABLE       0x00001000
127 #define PIC_SNOOP_MODE_0        0x00002000
128 #define PIC_SNOOP_MODE_1        0x00004000
129 #define SOUNDBLASTER_IRQ_MASK   0x00008000
130 #define RING_IN_ENABLE          0x00010000
131 #define SPDIF_TEST_MODE         0x00020000
132 #define CLK_MULT_MODE_SELECT_2  0x00040000
133 #define EEPROM_WRITE_ENABLE     0x00080000
134 #define CODEC_DIR_IN            0x00100000
135 #define HV_BUTTON_FROM_GD       0x00200000
136 #define REDUCED_DEBOUNCE        0x00400000
137 #define HV_CTRL_ENABLE          0x00800000
138 #define SPDIF_ENABLE            0x01000000
139 #define CLK_DIV_SELECT          0x06000000
140 #define CLK_DIV_BY_48           0x00000000
141 #define CLK_DIV_BY_49           0x02000000
142 #define CLK_DIV_BY_50           0x04000000
143 #define CLK_DIV_RESERVED        0x06000000
144 #define PM_CTRL_ENABLE          0x08000000
145 #define CLK_MULT_MODE_SELECT    0x30000000
146 #define CLK_MULT_MODE_SHIFT     28
147 #define CLK_MULT_MODE_0         0x00000000
148 #define CLK_MULT_MODE_1         0x10000000
149 #define CLK_MULT_MODE_2         0x20000000
150 #define CLK_MULT_MODE_3         0x30000000
151 #define INT_CLK_SELECT          0x40000000
152 #define INT_CLK_MULT_RESET      0x80000000
153 
154 /* M3 */
155 #define INT_CLK_SRC_NOT_PCI     0x00100000
156 #define INT_CLK_MULT_ENABLE     0x80000000
157 
158 #define PCI_ACPI_CONTROL        0x54
159 #define PCI_ACPI_D0             0x00000000
160 #define PCI_ACPI_D1             0xB4F70000
161 #define PCI_ACPI_D2             0xB4F7B4F7
162 
163 #define PCI_USER_CONFIG         0x58
164 #define EXT_PCI_MASTER_ENABLE   0x00000001
165 #define SPDIF_OUT_SELECT        0x00000002
166 #define TEST_PIN_DIR_CTRL       0x00000004
167 #define AC97_CODEC_TEST         0x00000020
168 #define TRI_STATE_BUFFER        0x00000080
169 #define IN_CLK_12MHZ_SELECT     0x00000100
170 #define MULTI_FUNC_DISABLE      0x00000200
171 #define EXT_MASTER_PAIR_SEL     0x00000400
172 #define PCI_MASTER_SUPPORT      0x00000800
173 #define STOP_CLOCK_ENABLE       0x00001000
174 #define EAPD_DRIVE_ENABLE       0x00002000
175 #define REQ_TRI_STATE_ENABLE    0x00004000
176 #define REQ_LOW_ENABLE          0x00008000
177 #define MIDI_1_ENABLE           0x00010000
178 #define MIDI_2_ENABLE           0x00020000
179 #define SB_AUDIO_SYNC           0x00040000
180 #define HV_CTRL_TEST            0x00100000
181 #define SOUNDBLASTER_TEST       0x00400000
182 
183 #define PCI_USER_CONFIG_C       0x5C
184 
185 #define PCI_DDMA_CTRL           0x60
186 #define DDMA_ENABLE             0x00000001
187 
188 
189 /* Allegro registers */
190 #define HOST_INT_CTRL           0x18
191 #define SB_INT_ENABLE           0x0001
192 #define MPU401_INT_ENABLE       0x0002
193 #define ASSP_INT_ENABLE         0x0010
194 #define RING_INT_ENABLE         0x0020
195 #define HV_INT_ENABLE           0x0040
196 #define CLKRUN_GEN_ENABLE       0x0100
197 #define HV_CTRL_TO_PME          0x0400
198 #define SOFTWARE_RESET_ENABLE   0x8000
199 
200 /*
201  * should be using the above defines, probably.
202  */
203 #define REGB_ENABLE_RESET               0x01
204 #define REGB_STOP_CLOCK                 0x10
205 
206 #define HOST_INT_STATUS         0x1A
207 #define SB_INT_PENDING          0x01
208 #define MPU401_INT_PENDING      0x02
209 #define ASSP_INT_PENDING        0x10
210 #define RING_INT_PENDING        0x20
211 #define HV_INT_PENDING          0x40
212 
213 #define HARDWARE_VOL_CTRL       0x1B
214 #define SHADOW_MIX_REG_VOICE    0x1C
215 #define HW_VOL_COUNTER_VOICE    0x1D
216 #define SHADOW_MIX_REG_MASTER   0x1E
217 #define HW_VOL_COUNTER_MASTER   0x1F
218 
219 #define CODEC_COMMAND           0x30
220 #define CODEC_READ_B            0x80
221 
222 #define CODEC_STATUS            0x30
223 #define CODEC_BUSY_B            0x01
224 
225 #define CODEC_DATA              0x32
226 
227 #define RING_BUS_CTRL_A         0x36
228 #define RAC_PME_ENABLE          0x0100
229 #define RAC_SDFS_ENABLE         0x0200
230 #define LAC_PME_ENABLE          0x0400
231 #define LAC_SDFS_ENABLE         0x0800
232 #define SERIAL_AC_LINK_ENABLE   0x1000
233 #define IO_SRAM_ENABLE          0x2000
234 #define IIS_INPUT_ENABLE        0x8000
235 
236 #define RING_BUS_CTRL_B         0x38
237 #define SECOND_CODEC_ID_MASK    0x0003
238 #define SPDIF_FUNC_ENABLE       0x0010
239 #define SECOND_AC_ENABLE        0x0020
240 #define SB_MODULE_INTF_ENABLE   0x0040
241 #define SSPE_ENABLE             0x0040
242 #define M3I_DOCK_ENABLE         0x0080
243 
244 #define SDO_OUT_DEST_CTRL       0x3A
245 #define COMMAND_ADDR_OUT        0x0003
246 #define PCM_LR_OUT_LOCAL        0x0000
247 #define PCM_LR_OUT_REMOTE       0x0004
248 #define PCM_LR_OUT_MUTE         0x0008
249 #define PCM_LR_OUT_BOTH         0x000C
250 #define LINE1_DAC_OUT_LOCAL     0x0000
251 #define LINE1_DAC_OUT_REMOTE    0x0010
252 #define LINE1_DAC_OUT_MUTE      0x0020
253 #define LINE1_DAC_OUT_BOTH      0x0030
254 #define PCM_CLS_OUT_LOCAL       0x0000
255 #define PCM_CLS_OUT_REMOTE      0x0040
256 #define PCM_CLS_OUT_MUTE        0x0080
257 #define PCM_CLS_OUT_BOTH        0x00C0
258 #define PCM_RLF_OUT_LOCAL       0x0000
259 #define PCM_RLF_OUT_REMOTE      0x0100
260 #define PCM_RLF_OUT_MUTE        0x0200
261 #define PCM_RLF_OUT_BOTH        0x0300
262 #define LINE2_DAC_OUT_LOCAL     0x0000
263 #define LINE2_DAC_OUT_REMOTE    0x0400
264 #define LINE2_DAC_OUT_MUTE      0x0800
265 #define LINE2_DAC_OUT_BOTH      0x0C00
266 #define HANDSET_OUT_LOCAL       0x0000
267 #define HANDSET_OUT_REMOTE      0x1000
268 #define HANDSET_OUT_MUTE        0x2000
269 #define HANDSET_OUT_BOTH        0x3000
270 #define IO_CTRL_OUT_LOCAL       0x0000
271 #define IO_CTRL_OUT_REMOTE      0x4000
272 #define IO_CTRL_OUT_MUTE        0x8000
273 #define IO_CTRL_OUT_BOTH        0xC000
274 
275 #define SDO_IN_DEST_CTRL        0x3C
276 #define STATUS_ADDR_IN          0x0003
277 #define PCM_LR_IN_LOCAL         0x0000
278 #define PCM_LR_IN_REMOTE        0x0004
279 #define PCM_LR_RESERVED         0x0008
280 #define PCM_LR_IN_BOTH          0x000C
281 #define LINE1_ADC_IN_LOCAL      0x0000
282 #define LINE1_ADC_IN_REMOTE     0x0010
283 #define LINE1_ADC_IN_MUTE       0x0020
284 #define MIC_ADC_IN_LOCAL        0x0000
285 #define MIC_ADC_IN_REMOTE       0x0040
286 #define MIC_ADC_IN_MUTE         0x0080
287 #define LINE2_DAC_IN_LOCAL      0x0000
288 #define LINE2_DAC_IN_REMOTE     0x0400
289 #define LINE2_DAC_IN_MUTE       0x0800
290 #define HANDSET_IN_LOCAL        0x0000
291 #define HANDSET_IN_REMOTE       0x1000
292 #define HANDSET_IN_MUTE         0x2000
293 #define IO_STATUS_IN_LOCAL      0x0000
294 #define IO_STATUS_IN_REMOTE     0x4000
295 
296 #define SPDIF_IN_CTRL           0x3E
297 #define SPDIF_IN_ENABLE         0x0001
298 
299 #define GPIO_DATA               0x60
300 #define GPIO_DATA_MASK          0x0FFF
301 #define GPIO_HV_STATUS          0x3000
302 #define GPIO_PME_STATUS         0x4000
303 
304 #define GPIO_MASK               0x64
305 #define GPIO_DIRECTION          0x68
306 #define GPO_PRIMARY_AC97        0x0001
307 #define GPI_LINEOUT_SENSE       0x0004
308 #define GPO_SECONDARY_AC97      0x0008
309 #define GPI_VOL_DOWN            0x0010
310 #define GPI_VOL_UP              0x0020
311 #define GPI_IIS_CLK             0x0040
312 #define GPI_IIS_LRCLK           0x0080
313 #define GPI_IIS_DATA            0x0100
314 #define GPI_DOCKING_STATUS      0x0100
315 #define GPI_HEADPHONE_SENSE     0x0200
316 #define GPO_EXT_AMP_SHUTDOWN    0x1000
317 
318 #define GPO_EXT_AMP_M3		1	/* default m3 amp */
319 #define GPO_EXT_AMP_ALLEGRO	8	/* default allegro amp */
320 
321 /* M3 */
322 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
323 
324 #define ASSP_INDEX_PORT         0x80
325 #define ASSP_MEMORY_PORT        0x82
326 #define ASSP_DATA_PORT          0x84
327 
328 #define MPU401_DATA_PORT        0x98
329 #define MPU401_STATUS_PORT      0x99
330 
331 #define CLK_MULT_DATA_PORT      0x9C
332 
333 #define ASSP_CONTROL_A          0xA2
334 #define ASSP_0_WS_ENABLE        0x01
335 #define ASSP_CTRL_A_RESERVED1   0x02
336 #define ASSP_CTRL_A_RESERVED2   0x04
337 #define ASSP_CLK_49MHZ_SELECT   0x08
338 #define FAST_PLU_ENABLE         0x10
339 #define ASSP_CTRL_A_RESERVED3   0x20
340 #define DSP_CLK_36MHZ_SELECT    0x40
341 
342 #define ASSP_CONTROL_B          0xA4
343 #define RESET_ASSP              0x00
344 #define RUN_ASSP                0x01
345 #define ENABLE_ASSP_CLOCK       0x00
346 #define STOP_ASSP_CLOCK         0x10
347 #define RESET_TOGGLE            0x40
348 
349 #define ASSP_CONTROL_C          0xA6
350 #define ASSP_HOST_INT_ENABLE    0x01
351 #define FM_ADDR_REMAP_DISABLE   0x02
352 #define HOST_WRITE_PORT_ENABLE  0x08
353 
354 #define ASSP_HOST_INT_STATUS    0xAC
355 #define DSP2HOST_REQ_PIORECORD  0x01
356 #define DSP2HOST_REQ_I2SRATE    0x02
357 #define DSP2HOST_REQ_TIMER      0x04
358 
359 /* AC97 registers */
360 /* XXX fix this crap up */
361 /*#define AC97_RESET              0x00*/
362 
363 #define AC97_VOL_MUTE_B         0x8000
364 #define AC97_VOL_M              0x1F
365 #define AC97_LEFT_VOL_S         8
366 
367 #define AC97_MASTER_VOL         0x02
368 #define AC97_LINE_LEVEL_VOL     0x04
369 #define AC97_MASTER_MONO_VOL    0x06
370 #define AC97_PC_BEEP_VOL        0x0A
371 #define AC97_PC_BEEP_VOL_M      0x0F
372 #define AC97_SROUND_MASTER_VOL  0x38
373 #define AC97_PC_BEEP_VOL_S      1
374 
375 /*#define AC97_PHONE_VOL          0x0C
376 #define AC97_MIC_VOL            0x0E*/
377 #define AC97_MIC_20DB_ENABLE    0x40
378 
379 /*#define AC97_LINEIN_VOL         0x10
380 #define AC97_CD_VOL             0x12
381 #define AC97_VIDEO_VOL          0x14
382 #define AC97_AUX_VOL            0x16*/
383 #define AC97_PCM_OUT_VOL        0x18
384 /*#define AC97_RECORD_SELECT      0x1A*/
385 #define AC97_RECORD_MIC         0x00
386 #define AC97_RECORD_CD          0x01
387 #define AC97_RECORD_VIDEO       0x02
388 #define AC97_RECORD_AUX         0x03
389 #define AC97_RECORD_MONO_MUX    0x02
390 #define AC97_RECORD_DIGITAL     0x03
391 #define AC97_RECORD_LINE        0x04
392 #define AC97_RECORD_STEREO      0x05
393 #define AC97_RECORD_MONO        0x06
394 #define AC97_RECORD_PHONE       0x07
395 
396 /*#define AC97_RECORD_GAIN        0x1C*/
397 #define AC97_RECORD_VOL_M       0x0F
398 
399 /*#define AC97_GENERAL_PURPOSE    0x20*/
400 #define AC97_POWER_DOWN_CTRL    0x26
401 #define AC97_ADC_READY          0x0001
402 #define AC97_DAC_READY          0x0002
403 #define AC97_ANALOG_READY       0x0004
404 #define AC97_VREF_ON            0x0008
405 #define AC97_PR0                0x0100
406 #define AC97_PR1                0x0200
407 #define AC97_PR2                0x0400
408 #define AC97_PR3                0x0800
409 #define AC97_PR4                0x1000
410 
411 #define AC97_RESERVED1          0x28
412 
413 #define AC97_VENDOR_TEST        0x5A
414 
415 #define AC97_CLOCK_DELAY        0x5C
416 #define AC97_LINEOUT_MUX_SEL    0x0001
417 #define AC97_MONO_MUX_SEL       0x0002
418 #define AC97_CLOCK_DELAY_SEL    0x1F
419 #define AC97_DAC_CDS_SHIFT      6
420 #define AC97_ADC_CDS_SHIFT      11
421 
422 #define AC97_MULTI_CHANNEL_SEL  0x74
423 
424 /*#define AC97_VENDOR_ID1         0x7C
425 #define AC97_VENDOR_ID2         0x7E*/
426 
427 /*
428  * ASSP control regs
429  */
430 #define DSP_PORT_TIMER_COUNT    0x06
431 
432 #define DSP_PORT_MEMORY_INDEX   0x80
433 
434 #define DSP_PORT_MEMORY_TYPE    0x82
435 #define MEMTYPE_INTERNAL_CODE   0x0002
436 #define MEMTYPE_INTERNAL_DATA   0x0003
437 #define MEMTYPE_MASK            0x0003
438 
439 #define DSP_PORT_MEMORY_DATA    0x84
440 
441 #define DSP_PORT_CONTROL_REG_A  0xA2
442 #define DSP_PORT_CONTROL_REG_B  0xA4
443 #define DSP_PORT_CONTROL_REG_C  0xA6
444 
445 #define REV_A_CODE_MEMORY_BEGIN         0x0000
446 #define REV_A_CODE_MEMORY_END           0x0FFF
447 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
448 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
449 
450 #define REV_B_CODE_MEMORY_BEGIN         0x0000
451 #define REV_B_CODE_MEMORY_END           0x0BFF
452 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
453 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
454 
455 #define REV_A_DATA_MEMORY_BEGIN         0x1000
456 #define REV_A_DATA_MEMORY_END           0x2FFF
457 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
458 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
459 
460 #define REV_B_DATA_MEMORY_BEGIN         0x1000
461 #define REV_B_DATA_MEMORY_END           0x2BFF
462 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
463 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
464 
465 
466 #define NUM_UNITS_KERNEL_CODE          16
467 #define NUM_UNITS_KERNEL_DATA           2
468 
469 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
470 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
471 
472 /*
473  * Kernel data layout
474  */
475 
476 #define DP_SHIFT_COUNT                  7
477 
478 #define KDATA_BASE_ADDR                 0x1000
479 #define KDATA_BASE_ADDR2                0x1080
480 
481 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
482 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
483 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
484 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
485 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
486 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
487 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
488 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
489 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
490 
491 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
492 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
493 
494 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
495 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
496 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
497 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
498 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
499 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
500 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
501 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
502 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
503 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
504 
505 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
506 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
507 
508 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
509 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
510 
511 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
512 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
513 
514 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
515 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
516 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
517 
518 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
519 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
520 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
521 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
522 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
523 
524 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
525 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
526 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
527 
528 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
529 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
530 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
531 
532 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
533 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
534 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
535 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
536 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
537 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
538 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
539 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
540 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
541 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
542 
543 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
544 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
545 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
546 
547 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
548 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
549 
550 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
551 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
552 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
553 
554 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
555 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
556 #define KDATA_ADC1_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x003D)
557 #define KDATA_ADC1_RIGHT_VOLUME  		(KDATA_BASE_ADDR + 0x003E)
558 #define KDATA_ADC1_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x003F)
559 #define KDATA_ADC1_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0040)
560 
561 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
562 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
563 #define KDATA_ADC2_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0043)
564 #define KDATA_ADC2_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x0044)
565 #define KDATA_ADC2_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x0045)
566 #define KDATA_ADC2_RIGHT_SUR_VOL		(KDATA_BASE_ADDR + 0x0046)
567 
568 #define KDATA_CD_XFER0					(KDATA_BASE_ADDR + 0x0047)
569 #define KDATA_CD_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x0048)
570 #define KDATA_CD_LEFT_VOLUME			(KDATA_BASE_ADDR + 0x0049)
571 #define KDATA_CD_RIGHT_VOLUME			(KDATA_BASE_ADDR + 0x004A)
572 #define KDATA_CD_LEFT_SUR_VOL			(KDATA_BASE_ADDR + 0x004B)
573 #define KDATA_CD_RIGHT_SUR_VOL			(KDATA_BASE_ADDR + 0x004C)
574 
575 #define KDATA_MIC_XFER0					(KDATA_BASE_ADDR + 0x004D)
576 #define KDATA_MIC_XFER_ENDMARK			(KDATA_BASE_ADDR + 0x004E)
577 #define KDATA_MIC_VOLUME				(KDATA_BASE_ADDR + 0x004F)
578 #define KDATA_MIC_SUR_VOL				(KDATA_BASE_ADDR + 0x0050)
579 
580 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
581 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
582 
583 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
584 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
585 
586 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
587 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
588 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
589 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
590 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
591 
592 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
593 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
594 
595 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
596 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
597 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
598 
599 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
600 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
601 
602 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
603 
604 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
605 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
606 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
607 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
608 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
609 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
610 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
611 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
612 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
613 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
614 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
615 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
616 
617 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
618 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
619 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
620 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
621 
622 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
623 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
624 
625 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
626 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
627 #define KDATA_CD_REQUEST				(KDATA_BASE_ADDR + 0x0076)
628 #define KDATA_MIC_REQUEST				(KDATA_BASE_ADDR + 0x0077)
629 
630 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
631 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
632 #define KDATA_CD_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007A)
633 #define KDATA_MIC_MIXER_REQUEST			(KDATA_BASE_ADDR + 0x007B)
634 #define KDATA_MIC_SYNC_COUNTER			(KDATA_BASE_ADDR + 0x007C)
635 
636 /*
637  * second 'segment' (?) reserved for mixer
638  * buffers..
639  */
640 
641 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
642 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
643 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
644 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
645 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
646 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
647 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
648 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
649 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
650 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
651 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
652 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
653 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
654 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
655 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
656 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
657 
658 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
659 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
660 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
661 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
662 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
663 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
664 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
665 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
666 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
667 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
668 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
669 
670 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
671 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
672 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
673 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
674 #define KDATA_DAC_LEFT_VOLUME	        (KDATA_BASE_ADDR2 + 0x001F)
675 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
676 
677 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
678 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
679 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
680 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
681 
682 /*
683  * client data area offsets
684  */
685 #define CDATA_INSTANCE_READY            0x00
686 
687 #define CDATA_HOST_SRC_ADDRL            0x01
688 #define CDATA_HOST_SRC_ADDRH            0x02
689 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
690 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
691 #define CDATA_HOST_SRC_CURRENTL         0x05
692 #define CDATA_HOST_SRC_CURRENTH         0x06
693 
694 #define CDATA_IN_BUF_CONNECT            0x07
695 #define CDATA_OUT_BUF_CONNECT           0x08
696 
697 #define CDATA_IN_BUF_BEGIN              0x09
698 #define CDATA_IN_BUF_END_PLUS_1         0x0A
699 #define CDATA_IN_BUF_HEAD               0x0B
700 #define CDATA_IN_BUF_TAIL               0x0C
701 #define CDATA_OUT_BUF_BEGIN             0x0D
702 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
703 #define CDATA_OUT_BUF_HEAD              0x0F
704 #define CDATA_OUT_BUF_TAIL              0x10
705 
706 #define CDATA_DMA_CONTROL               0x11
707 #define CDATA_RESERVED                  0x12
708 
709 #define CDATA_FREQUENCY                 0x13
710 #define CDATA_LEFT_VOLUME               0x14
711 #define CDATA_RIGHT_VOLUME              0x15
712 #define CDATA_LEFT_SUR_VOL              0x16
713 #define CDATA_RIGHT_SUR_VOL             0x17
714 
715 #define CDATA_HEADER_LEN                0x18
716 
717 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
718 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
719 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
720 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
721 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
722 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
723 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
724 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
725 
726 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
727 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
728 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
729 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
730 #define MINISRC_BIQUAD_STAGE    2
731 #define MINISRC_COEF_LOC          0x175
732 
733 #define DMACONTROL_BLOCK_MASK           0x000F
734 #define  DMAC_BLOCK0_SELECTOR           0x0000
735 #define  DMAC_BLOCK1_SELECTOR           0x0001
736 #define  DMAC_BLOCK2_SELECTOR           0x0002
737 #define  DMAC_BLOCK3_SELECTOR           0x0003
738 #define  DMAC_BLOCK4_SELECTOR           0x0004
739 #define  DMAC_BLOCK5_SELECTOR           0x0005
740 #define  DMAC_BLOCK6_SELECTOR           0x0006
741 #define  DMAC_BLOCK7_SELECTOR           0x0007
742 #define  DMAC_BLOCK8_SELECTOR           0x0008
743 #define  DMAC_BLOCK9_SELECTOR           0x0009
744 #define  DMAC_BLOCKA_SELECTOR           0x000A
745 #define  DMAC_BLOCKB_SELECTOR           0x000B
746 #define  DMAC_BLOCKC_SELECTOR           0x000C
747 #define  DMAC_BLOCKD_SELECTOR           0x000D
748 #define  DMAC_BLOCKE_SELECTOR           0x000E
749 #define  DMAC_BLOCKF_SELECTOR           0x000F
750 #define DMACONTROL_PAGE_MASK            0x00F0
751 #define  DMAC_PAGE0_SELECTOR            0x0030
752 #define  DMAC_PAGE1_SELECTOR            0x0020
753 #define  DMAC_PAGE2_SELECTOR            0x0010
754 #define  DMAC_PAGE3_SELECTOR            0x0000
755 #define DMACONTROL_AUTOREPEAT           0x1000
756 #define DMACONTROL_STOPPED              0x2000
757 #define DMACONTROL_DIRECTION            0x0100
758 
759 /*
760  * an arbitrary volume we set the internal
761  * volume settings to so that the ac97 volume
762  * range is a little less insane.  0x7fff is
763  * max.
764  */
765 #define ARB_VOLUME ( 0x6800 )
766 
767 /*
768  */
769 
770 typedef struct snd_m3_dma m3_dma_t;
771 typedef struct snd_m3 m3_t;
772 
773 /* quirk lists */
774 struct m3_quirk {
775 	const char *name;	/* device name */
776 	u16 vendor, device;	/* subsystem ids */
777 	int amp_gpio;		/* gpio pin #  for external amp, -1 = default */
778 	int irda_workaround;	/* non-zero if avoid to touch 0x10 on GPIO_DIRECTION
779 				   (e.g. for IrDA on Dell Inspirons) */
780 };
781 
782 struct m3_list {
783 	int curlen;
784 	int mem_addr;
785 	int max;
786 };
787 
788 struct snd_m3_dma {
789 
790 	int number;
791 	m3_t *chip;
792 	snd_pcm_substream_t *substream;
793 
794 	struct assp_instance {
795 		unsigned short code, data;
796 	} inst;
797 
798 	int running;
799 	int opened;
800 
801 	unsigned long buffer_addr;
802 	int dma_size;
803 	int period_size;
804 	unsigned int hwptr;
805 	int count;
806 
807 	int index[3];
808 	struct m3_list *index_list[3];
809 
810         int in_lists;
811 
812 	struct list_head list;
813 
814 };
815 
816 struct snd_m3 {
817 
818 	snd_card_t *card;
819 
820 	unsigned long iobase;
821 
822 	int irq;
823 	unsigned int allegro_flag : 1;
824 
825 	ac97_t *ac97;
826 
827 	snd_pcm_t *pcm;
828 
829 	struct pci_dev *pci;
830 	struct m3_quirk *quirk;
831 
832 	int dacs_active;
833 	int timer_users;
834 
835 	struct m3_list  msrc_list;
836 	struct m3_list  mixer_list;
837 	struct m3_list  adc1_list;
838 	struct m3_list  dma_list;
839 
840 	/* for storing reset state..*/
841 	u8 reset_state;
842 
843 	int external_amp;
844 	int amp_gpio;
845 
846 	/* midi */
847 	snd_rawmidi_t *rmidi;
848 
849 	/* pcm streams */
850 	int num_substreams;
851 	m3_dma_t *substreams;
852 
853 	spinlock_t reg_lock;
854 
855 #ifdef CONFIG_PM
856 	u16 *suspend_mem;
857 #endif
858 };
859 
860 /*
861  * pci ids
862  */
863 
864 #ifndef PCI_VENDOR_ID_ESS
865 #define PCI_VENDOR_ID_ESS         0x125D
866 #endif
867 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO_1
868 #define PCI_DEVICE_ID_ESS_ALLEGRO_1	0x1988
869 #endif
870 #ifndef PCI_DEVICE_ID_ESS_ALLEGRO
871 #define PCI_DEVICE_ID_ESS_ALLEGRO	0x1989
872 #endif
873 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2LE
874 #define PCI_DEVICE_ID_ESS_CANYON3D_2LE	0x1990
875 #endif
876 #ifndef PCI_DEVICE_ID_ESS_CANYON3D_2
877 #define PCI_DEVICE_ID_ESS_CANYON3D_2	0x1992
878 #endif
879 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3
880 #define PCI_DEVICE_ID_ESS_MAESTRO3	0x1998
881 #endif
882 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_1
883 #define PCI_DEVICE_ID_ESS_MAESTRO3_1	0x1999
884 #endif
885 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_HW
886 #define PCI_DEVICE_ID_ESS_MAESTRO3_HW	0x199a
887 #endif
888 #ifndef PCI_DEVICE_ID_ESS_MAESTRO3_2
889 #define PCI_DEVICE_ID_ESS_MAESTRO3_2	0x199b
890 #endif
891 
892 static struct pci_device_id snd_m3_ids[] = {
893 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
894 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
895 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
896 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
897 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
898 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
899 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
900 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
901 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
902 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
903 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
904 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
905 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
906 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
907 	{PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
908 	 PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
909 	{0,},
910 };
911 
912 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
913 
914 static struct m3_quirk m3_quirk_list[] = {
915 	/* panasonic CF-28 "toughbook" */
916 	{
917 		.name = "Panasonic CF-28",
918 		.vendor = 0x10f7,
919 		.device = 0x833e,
920 		.amp_gpio = 0x0d,
921 	},
922 	/* panasonic CF-72 "toughbook" */
923 	{
924 		.name = "Panasonic CF-72",
925 		.vendor = 0x10f7,
926 		.device = 0x833d,
927 		.amp_gpio = 0x0d,
928 	},
929 	/* Dell Inspiron 4000 */
930 	{
931 		.name = "Dell Inspiron 4000",
932 		.vendor = 0x1028,
933 		.device = 0x00b0,
934 		.amp_gpio = -1,
935 		.irda_workaround = 1,
936 	},
937 	/* Dell Inspiron 8000 */
938 	{
939 		.name = "Dell Inspiron 8000",
940 		.vendor = 0x1028,
941 		.device = 0x00a4,
942 		.amp_gpio = -1,
943 		.irda_workaround = 1,
944 	},
945 	/* Dell Inspiron 8100 */
946 	{
947 		.name = "Dell Inspiron 8100",
948 		.vendor = 0x1028,
949 		.device = 0x00e6,
950 		.amp_gpio = -1,
951 		.irda_workaround = 1,
952 	},
953 	/* NEC LM800J/7 */
954 	{
955 		.name = "NEC LM800J/7",
956 		.vendor = 0x1033,
957 		.device = 0x80f1,
958 		.amp_gpio = 0x03,
959 	},
960 	/* LEGEND ZhaoYang 3100CF */
961 	{
962 		.name = "LEGEND ZhaoYang 3100CF",
963 		.vendor = 0x1509,
964 		.device = 0x1740,
965 		.amp_gpio = 0x03,
966 	},
967 	/* END */
968 	{ NULL }
969 };
970 
971 
972 /*
973  * lowlevel functions
974  */
975 
976 #define big_mdelay(msec) do {\
977 	set_current_state(TASK_UNINTERRUPTIBLE);\
978 	schedule_timeout(((msec) * HZ) / 1000);\
979 } while (0)
980 
981 inline static void snd_m3_outw(m3_t *chip, u16 value, unsigned long reg)
982 {
983 	outw(value, chip->iobase + reg);
984 }
985 
986 inline static u16 snd_m3_inw(m3_t *chip, unsigned long reg)
987 {
988 	return inw(chip->iobase + reg);
989 }
990 
991 inline static void snd_m3_outb(m3_t *chip, u8 value, unsigned long reg)
992 {
993 	outb(value, chip->iobase + reg);
994 }
995 
996 inline static u8 snd_m3_inb(m3_t *chip, unsigned long reg)
997 {
998 	return inb(chip->iobase + reg);
999 }
1000 
1001 /*
1002  * access 16bit words to the code or data regions of the dsp's memory.
1003  * index addresses 16bit words.
1004  */
1005 static u16 snd_m3_assp_read(m3_t *chip, u16 region, u16 index)
1006 {
1007 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1008 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1009 	return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
1010 }
1011 
1012 static void snd_m3_assp_write(m3_t *chip, u16 region, u16 index, u16 data)
1013 {
1014 	snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
1015 	snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
1016 	snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
1017 }
1018 
1019 static void snd_m3_assp_halt(m3_t *chip)
1020 {
1021 	chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
1022 	big_mdelay(10);
1023 	snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1024 }
1025 
1026 static void snd_m3_assp_continue(m3_t *chip)
1027 {
1028 	snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
1029 }
1030 
1031 
1032 /*
1033  * This makes me sad. the maestro3 has lists
1034  * internally that must be packed.. 0 terminates,
1035  * apparently, or maybe all unused entries have
1036  * to be 0, the lists have static lengths set
1037  * by the binary code images.
1038  */
1039 
1040 static int snd_m3_add_list(m3_t *chip, struct m3_list *list, u16 val)
1041 {
1042 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1043 			  list->mem_addr + list->curlen,
1044 			  val);
1045 	return list->curlen++;
1046 }
1047 
1048 static void snd_m3_remove_list(m3_t *chip, struct m3_list *list, int index)
1049 {
1050 	u16  val;
1051 	int lastindex = list->curlen - 1;
1052 
1053 	if (index != lastindex) {
1054 		val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1055 				       list->mem_addr + lastindex);
1056 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1057 				  list->mem_addr + index,
1058 				  val);
1059 	}
1060 
1061 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1062 			  list->mem_addr + lastindex,
1063 			  0);
1064 
1065 	list->curlen--;
1066 }
1067 
1068 static void snd_m3_inc_timer_users(m3_t *chip)
1069 {
1070 	chip->timer_users++;
1071 	if (chip->timer_users != 1)
1072 		return;
1073 
1074 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1075 			  KDATA_TIMER_COUNT_RELOAD,
1076 			  240);
1077 
1078 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1079 			  KDATA_TIMER_COUNT_CURRENT,
1080 			  240);
1081 
1082 	snd_m3_outw(chip,
1083 		    snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1084 		    HOST_INT_CTRL);
1085 }
1086 
1087 static void snd_m3_dec_timer_users(m3_t *chip)
1088 {
1089 	chip->timer_users--;
1090 	if (chip->timer_users > 0)
1091 		return;
1092 
1093 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1094 			  KDATA_TIMER_COUNT_RELOAD,
1095 			  0);
1096 
1097 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1098 			  KDATA_TIMER_COUNT_CURRENT,
1099 			  0);
1100 
1101 	snd_m3_outw(chip,
1102 		    snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1103 		    HOST_INT_CTRL);
1104 }
1105 
1106 /*
1107  * start/stop
1108  */
1109 
1110 /* spinlock held! */
1111 static int snd_m3_pcm_start(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1112 {
1113 	if (! s || ! subs)
1114 		return -EINVAL;
1115 
1116 	snd_m3_inc_timer_users(chip);
1117 	switch (subs->stream) {
1118 	case SNDRV_PCM_STREAM_PLAYBACK:
1119 		chip->dacs_active++;
1120 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1121 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1122 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1123 				  KDATA_MIXER_TASK_NUMBER,
1124 				  chip->dacs_active);
1125 		break;
1126 	case SNDRV_PCM_STREAM_CAPTURE:
1127 		snd_m3_assp_write(s->chip, MEMTYPE_INTERNAL_DATA,
1128 				  KDATA_ADC1_REQUEST, 1);
1129 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1130 				  s->inst.data + CDATA_INSTANCE_READY, 1);
1131 		break;
1132 	}
1133 	return 0;
1134 }
1135 
1136 /* spinlock held! */
1137 static int snd_m3_pcm_stop(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1138 {
1139 	if (! s || ! subs)
1140 		return -EINVAL;
1141 
1142 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1143 			  s->inst.data + CDATA_INSTANCE_READY, 0);
1144 	snd_m3_dec_timer_users(chip);
1145 	switch (subs->stream) {
1146 	case SNDRV_PCM_STREAM_PLAYBACK:
1147 		chip->dacs_active--;
1148 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1149 				  KDATA_MIXER_TASK_NUMBER,
1150 				  chip->dacs_active);
1151 		break;
1152 	case SNDRV_PCM_STREAM_CAPTURE:
1153 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1154 				  KDATA_ADC1_REQUEST, 0);
1155 		break;
1156 	}
1157 	return 0;
1158 }
1159 
1160 static int
1161 snd_m3_pcm_trigger(snd_pcm_substream_t *subs, int cmd)
1162 {
1163 	m3_t *chip = snd_pcm_substream_chip(subs);
1164 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1165 	int err = -EINVAL;
1166 
1167 	snd_assert(s != NULL, return -ENXIO);
1168 
1169 	spin_lock(&chip->reg_lock);
1170 	switch (cmd) {
1171 	case SNDRV_PCM_TRIGGER_START:
1172 	case SNDRV_PCM_TRIGGER_RESUME:
1173 		if (s->running)
1174 			err = -EBUSY;
1175 		else {
1176 			s->running = 1;
1177 			err = snd_m3_pcm_start(chip, s, subs);
1178 		}
1179 		break;
1180 	case SNDRV_PCM_TRIGGER_STOP:
1181 	case SNDRV_PCM_TRIGGER_SUSPEND:
1182 		if (! s->running)
1183 			err = 0; /* should return error? */
1184 		else {
1185 			s->running = 0;
1186 			err = snd_m3_pcm_stop(chip, s, subs);
1187 		}
1188 		break;
1189 	}
1190 	spin_unlock(&chip->reg_lock);
1191 	return err;
1192 }
1193 
1194 /*
1195  * setup
1196  */
1197 static void
1198 snd_m3_pcm_setup1(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1199 {
1200 	int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1201 	snd_pcm_runtime_t *runtime = subs->runtime;
1202 
1203 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1204 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1205 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1206 	} else {
1207 		dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1208 		dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1209 	}
1210 	dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1211 	dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1212 
1213 	s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1214 	s->period_size = frames_to_bytes(runtime, runtime->period_size);
1215 	s->hwptr = 0;
1216 	s->count = 0;
1217 
1218 #define LO(x) ((x) & 0xffff)
1219 #define HI(x) LO((x) >> 16)
1220 
1221 	/* host dma buffer pointers */
1222 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1223 			  s->inst.data + CDATA_HOST_SRC_ADDRL,
1224 			  LO(s->buffer_addr));
1225 
1226 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1227 			  s->inst.data + CDATA_HOST_SRC_ADDRH,
1228 			  HI(s->buffer_addr));
1229 
1230 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1231 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1232 			  LO(s->buffer_addr + s->dma_size));
1233 
1234 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1235 			  s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1236 			  HI(s->buffer_addr + s->dma_size));
1237 
1238 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1239 			  s->inst.data + CDATA_HOST_SRC_CURRENTL,
1240 			  LO(s->buffer_addr));
1241 
1242 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1243 			  s->inst.data + CDATA_HOST_SRC_CURRENTH,
1244 			  HI(s->buffer_addr));
1245 #undef LO
1246 #undef HI
1247 
1248 	/* dsp buffers */
1249 
1250 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1251 			  s->inst.data + CDATA_IN_BUF_BEGIN,
1252 			  dsp_in_buffer);
1253 
1254 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1255 			  s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1256 			  dsp_in_buffer + (dsp_in_size / 2));
1257 
1258 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1259 			  s->inst.data + CDATA_IN_BUF_HEAD,
1260 			  dsp_in_buffer);
1261 
1262 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1263 			  s->inst.data + CDATA_IN_BUF_TAIL,
1264 			  dsp_in_buffer);
1265 
1266 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1267 			  s->inst.data + CDATA_OUT_BUF_BEGIN,
1268 			  dsp_out_buffer);
1269 
1270 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1271 			  s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1272 			  dsp_out_buffer + (dsp_out_size / 2));
1273 
1274 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1275 			  s->inst.data + CDATA_OUT_BUF_HEAD,
1276 			  dsp_out_buffer);
1277 
1278 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1279 			  s->inst.data + CDATA_OUT_BUF_TAIL,
1280 			  dsp_out_buffer);
1281 }
1282 
1283 static void snd_m3_pcm_setup2(m3_t *chip, m3_dma_t *s, snd_pcm_runtime_t *runtime)
1284 {
1285 	u32 freq;
1286 
1287 	/*
1288 	 * put us in the lists if we're not already there
1289 	 */
1290 	if (! s->in_lists) {
1291 		s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1292 					      s->inst.data >> DP_SHIFT_COUNT);
1293 		s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1294 					      s->inst.data >> DP_SHIFT_COUNT);
1295 		s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1296 					      s->inst.data >> DP_SHIFT_COUNT);
1297 		s->in_lists = 1;
1298 	}
1299 
1300 	/* write to 'mono' word */
1301 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1302 			  s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1303 			  runtime->channels == 2 ? 0 : 1);
1304 	/* write to '8bit' word */
1305 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1306 			  s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1307 			  snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1308 
1309 	/* set up dac/adc rate */
1310 	freq = ((runtime->rate << 15) + 24000 ) / 48000;
1311 	if (freq)
1312 		freq--;
1313 
1314 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1315 			  s->inst.data + CDATA_FREQUENCY,
1316 			  freq);
1317 }
1318 
1319 
1320 static struct play_vals {
1321 	u16 addr, val;
1322 } pv[] = {
1323 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1324 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1325 	{SRC3_DIRECTION_OFFSET, 0} ,
1326 	/* +1, +2 are stereo/16 bit */
1327 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1328 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1329 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1330 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1331 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1332 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1333 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1334 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1335 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1336 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1337 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1338 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1339 	{SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1340 	{SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1341 	{SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1342 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1343 	{SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1344 };
1345 
1346 
1347 /* the mode passed should be already shifted and masked */
1348 static void
1349 snd_m3_playback_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1350 {
1351 	unsigned int i;
1352 
1353 	/*
1354 	 * some per client initializers
1355 	 */
1356 
1357 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1358 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1359 			  s->inst.data + 40 + 8);
1360 
1361 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1362 			  s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1363 			  s->inst.code + MINISRC_COEF_LOC);
1364 
1365 	/* enable or disable low pass filter? */
1366 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1367 			  s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1368 			  subs->runtime->rate > 45000 ? 0xff : 0);
1369 
1370 	/* tell it which way dma is going? */
1371 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1372 			  s->inst.data + CDATA_DMA_CONTROL,
1373 			  DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1374 
1375 	/*
1376 	 * set an armload of static initializers
1377 	 */
1378 	for (i = 0; i < ARRAY_SIZE(pv); i++)
1379 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1380 				  s->inst.data + pv[i].addr, pv[i].val);
1381 }
1382 
1383 /*
1384  *    Native record driver
1385  */
1386 static struct rec_vals {
1387 	u16 addr, val;
1388 } rv[] = {
1389 	{CDATA_LEFT_VOLUME, ARB_VOLUME},
1390 	{CDATA_RIGHT_VOLUME, ARB_VOLUME},
1391 	{SRC3_DIRECTION_OFFSET, 1} ,
1392 	/* +1, +2 are stereo/16 bit */
1393 	{SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1394 	{SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1395 	{SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1396 	{SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1397 	{SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1398 	{SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1399 	{SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1400 	{SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1401 	{SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1402 	{SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1403 	{SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1404 	{SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1405 	{SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1406 	{SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1407 	{SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1408 	{SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1409 	{SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1410 	{SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1411 	{SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1412 };
1413 
1414 static void
1415 snd_m3_capture_setup(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1416 {
1417 	unsigned int i;
1418 
1419 	/*
1420 	 * some per client initializers
1421 	 */
1422 
1423 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1424 			  s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1425 			  s->inst.data + 40 + 8);
1426 
1427 	/* tell it which way dma is going? */
1428 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1429 			  s->inst.data + CDATA_DMA_CONTROL,
1430 			  DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1431 			  DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1432 
1433 	/*
1434 	 * set an armload of static initializers
1435 	 */
1436 	for (i = 0; i < ARRAY_SIZE(rv); i++)
1437 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1438 				  s->inst.data + rv[i].addr, rv[i].val);
1439 }
1440 
1441 static int snd_m3_pcm_hw_params(snd_pcm_substream_t * substream,
1442 				snd_pcm_hw_params_t * hw_params)
1443 {
1444 	m3_dma_t *s = (m3_dma_t*) substream->runtime->private_data;
1445 	int err;
1446 
1447 	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1448 		return err;
1449 	/* set buffer address */
1450 	s->buffer_addr = substream->runtime->dma_addr;
1451 	if (s->buffer_addr & 0x3) {
1452 		snd_printk("oh my, not aligned\n");
1453 		s->buffer_addr = s->buffer_addr & ~0x3;
1454 	}
1455 	return 0;
1456 }
1457 
1458 static int snd_m3_pcm_hw_free(snd_pcm_substream_t * substream)
1459 {
1460 	m3_dma_t *s;
1461 
1462 	if (substream->runtime->private_data == NULL)
1463 		return 0;
1464 	s = (m3_dma_t*) substream->runtime->private_data;
1465 	snd_pcm_lib_free_pages(substream);
1466 	s->buffer_addr = 0;
1467 	return 0;
1468 }
1469 
1470 static int
1471 snd_m3_pcm_prepare(snd_pcm_substream_t *subs)
1472 {
1473 	m3_t *chip = snd_pcm_substream_chip(subs);
1474 	snd_pcm_runtime_t *runtime = subs->runtime;
1475 	m3_dma_t *s = (m3_dma_t*)runtime->private_data;
1476 
1477 	snd_assert(s != NULL, return -ENXIO);
1478 
1479 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1480 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1481 		return -EINVAL;
1482 	if (runtime->rate > 48000 ||
1483 	    runtime->rate < 8000)
1484 		return -EINVAL;
1485 
1486 	spin_lock_irq(&chip->reg_lock);
1487 
1488 	snd_m3_pcm_setup1(chip, s, subs);
1489 
1490 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1491 		snd_m3_playback_setup(chip, s, subs);
1492 	else
1493 		snd_m3_capture_setup(chip, s, subs);
1494 
1495 	snd_m3_pcm_setup2(chip, s, runtime);
1496 
1497 	spin_unlock_irq(&chip->reg_lock);
1498 
1499 	return 0;
1500 }
1501 
1502 /*
1503  * get current pointer
1504  */
1505 static unsigned int
1506 snd_m3_get_pointer(m3_t *chip, m3_dma_t *s, snd_pcm_substream_t *subs)
1507 {
1508 	u16 hi = 0, lo = 0;
1509 	int retry = 10;
1510 	u32 addr;
1511 
1512 	/*
1513 	 * try and get a valid answer
1514 	 */
1515 	while (retry--) {
1516 		hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1517 				       s->inst.data + CDATA_HOST_SRC_CURRENTH);
1518 
1519 		lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1520 				      s->inst.data + CDATA_HOST_SRC_CURRENTL);
1521 
1522 		if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1523 					   s->inst.data + CDATA_HOST_SRC_CURRENTH))
1524 			break;
1525 	}
1526 	addr = lo | ((u32)hi<<16);
1527 	return (unsigned int)(addr - s->buffer_addr);
1528 }
1529 
1530 static snd_pcm_uframes_t
1531 snd_m3_pcm_pointer(snd_pcm_substream_t * subs)
1532 {
1533 	m3_t *chip = snd_pcm_substream_chip(subs);
1534 	unsigned int ptr;
1535 	m3_dma_t *s = (m3_dma_t*)subs->runtime->private_data;
1536 	snd_assert(s != NULL, return 0);
1537 
1538 	spin_lock(&chip->reg_lock);
1539 	ptr = snd_m3_get_pointer(chip, s, subs);
1540 	spin_unlock(&chip->reg_lock);
1541 	return bytes_to_frames(subs->runtime, ptr);
1542 }
1543 
1544 
1545 /* update pointer */
1546 /* spinlock held! */
1547 static void snd_m3_update_ptr(m3_t *chip, m3_dma_t *s)
1548 {
1549 	snd_pcm_substream_t *subs = s->substream;
1550 	unsigned int hwptr;
1551 	int diff;
1552 
1553 	if (! s->running)
1554 		return;
1555 
1556 	hwptr = snd_m3_get_pointer(chip, s, subs) % s->dma_size;
1557 	diff = (s->dma_size + hwptr - s->hwptr) % s->dma_size;
1558 	s->hwptr = hwptr;
1559 	s->count += diff;
1560 	if (s->count >= (signed)s->period_size) {
1561 		s->count %= s->period_size;
1562 		spin_unlock(&chip->reg_lock);
1563 		snd_pcm_period_elapsed(subs);
1564 		spin_lock(&chip->reg_lock);
1565 	}
1566 }
1567 
1568 static irqreturn_t
1569 snd_m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1570 {
1571 	m3_t *chip = dev_id;
1572 	u8 status;
1573 	int i;
1574 
1575 	status = inb(chip->iobase + HOST_INT_STATUS);
1576 
1577 	if (status == 0xff)
1578 		return IRQ_NONE;
1579 
1580 	/*
1581 	 * ack an assp int if its running
1582 	 * and has an int pending
1583 	 */
1584 	if (status & ASSP_INT_PENDING) {
1585 		u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1586 		if (!(ctl & STOP_ASSP_CLOCK)) {
1587 			ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1588 			if (ctl & DSP2HOST_REQ_TIMER) {
1589 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1590 				/* update adc/dac info if it was a timer int */
1591 				spin_lock(&chip->reg_lock);
1592 				for (i = 0; i < chip->num_substreams; i++) {
1593 					m3_dma_t *s = &chip->substreams[i];
1594 					if (s->running)
1595 						snd_m3_update_ptr(chip, s);
1596 				}
1597 				spin_unlock(&chip->reg_lock);
1598 			}
1599 		}
1600 	}
1601 
1602 #if 0 /* TODO: not supported yet */
1603 	if ((status & MPU401_INT_PENDING) && chip->rmidi)
1604 		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1605 #endif
1606 
1607 	/* ack ints */
1608 	snd_m3_outw(chip, HOST_INT_STATUS, status);
1609 
1610 	return IRQ_HANDLED;
1611 }
1612 
1613 
1614 /*
1615  */
1616 
1617 static snd_pcm_hardware_t snd_m3_playback =
1618 {
1619 	.info =			(SNDRV_PCM_INFO_MMAP |
1620 				 SNDRV_PCM_INFO_INTERLEAVED |
1621 				 SNDRV_PCM_INFO_MMAP_VALID |
1622 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1623 				 /*SNDRV_PCM_INFO_PAUSE |*/
1624 				 SNDRV_PCM_INFO_RESUME),
1625 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1626 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1627 	.rate_min =		8000,
1628 	.rate_max =		48000,
1629 	.channels_min =		1,
1630 	.channels_max =		2,
1631 	.buffer_bytes_max =	(512*1024),
1632 	.period_bytes_min =	64,
1633 	.period_bytes_max =	(512*1024),
1634 	.periods_min =		1,
1635 	.periods_max =		1024,
1636 };
1637 
1638 static snd_pcm_hardware_t snd_m3_capture =
1639 {
1640 	.info =			(SNDRV_PCM_INFO_MMAP |
1641 				 SNDRV_PCM_INFO_INTERLEAVED |
1642 				 SNDRV_PCM_INFO_MMAP_VALID |
1643 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1644 				 /*SNDRV_PCM_INFO_PAUSE |*/
1645 				 SNDRV_PCM_INFO_RESUME),
1646 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1647 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1648 	.rate_min =		8000,
1649 	.rate_max =		48000,
1650 	.channels_min =		1,
1651 	.channels_max =		2,
1652 	.buffer_bytes_max =	(512*1024),
1653 	.period_bytes_min =	64,
1654 	.period_bytes_max =	(512*1024),
1655 	.periods_min =		1,
1656 	.periods_max =		1024,
1657 };
1658 
1659 
1660 /*
1661  */
1662 
1663 static int
1664 snd_m3_substream_open(m3_t *chip, snd_pcm_substream_t *subs)
1665 {
1666 	int i;
1667 	m3_dma_t *s;
1668 
1669 	spin_lock_irq(&chip->reg_lock);
1670 	for (i = 0; i < chip->num_substreams; i++) {
1671 		s = &chip->substreams[i];
1672 		if (! s->opened)
1673 			goto __found;
1674 	}
1675 	spin_unlock_irq(&chip->reg_lock);
1676 	return -ENOMEM;
1677 __found:
1678 	s->opened = 1;
1679 	s->running = 0;
1680 	spin_unlock_irq(&chip->reg_lock);
1681 
1682 	subs->runtime->private_data = s;
1683 	s->substream = subs;
1684 
1685 	/* set list owners */
1686 	if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1687 		s->index_list[0] = &chip->mixer_list;
1688 	} else
1689 		s->index_list[0] = &chip->adc1_list;
1690 	s->index_list[1] = &chip->msrc_list;
1691 	s->index_list[2] = &chip->dma_list;
1692 
1693 	return 0;
1694 }
1695 
1696 static void
1697 snd_m3_substream_close(m3_t *chip, snd_pcm_substream_t *subs)
1698 {
1699 	m3_dma_t *s = (m3_dma_t*) subs->runtime->private_data;
1700 
1701 	if (s == NULL)
1702 		return; /* not opened properly */
1703 
1704 	spin_lock_irq(&chip->reg_lock);
1705 	if (s->substream && s->running)
1706 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1707 	if (s->in_lists) {
1708 		snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1709 		snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1710 		snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1711 		s->in_lists = 0;
1712 	}
1713 	s->running = 0;
1714 	s->opened = 0;
1715 	spin_unlock_irq(&chip->reg_lock);
1716 }
1717 
1718 static int
1719 snd_m3_playback_open(snd_pcm_substream_t *subs)
1720 {
1721 	m3_t *chip = snd_pcm_substream_chip(subs);
1722 	snd_pcm_runtime_t *runtime = subs->runtime;
1723 	int err;
1724 
1725 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1726 		return err;
1727 
1728 	runtime->hw = snd_m3_playback;
1729 	snd_pcm_set_sync(subs);
1730 
1731 	return 0;
1732 }
1733 
1734 static int
1735 snd_m3_playback_close(snd_pcm_substream_t *subs)
1736 {
1737 	m3_t *chip = snd_pcm_substream_chip(subs);
1738 
1739 	snd_m3_substream_close(chip, subs);
1740 	return 0;
1741 }
1742 
1743 static int
1744 snd_m3_capture_open(snd_pcm_substream_t *subs)
1745 {
1746 	m3_t *chip = snd_pcm_substream_chip(subs);
1747 	snd_pcm_runtime_t *runtime = subs->runtime;
1748 	int err;
1749 
1750 	if ((err = snd_m3_substream_open(chip, subs)) < 0)
1751 		return err;
1752 
1753 	runtime->hw = snd_m3_capture;
1754 	snd_pcm_set_sync(subs);
1755 
1756 	return 0;
1757 }
1758 
1759 static int
1760 snd_m3_capture_close(snd_pcm_substream_t *subs)
1761 {
1762 	m3_t *chip = snd_pcm_substream_chip(subs);
1763 
1764 	snd_m3_substream_close(chip, subs);
1765 	return 0;
1766 }
1767 
1768 /*
1769  * create pcm instance
1770  */
1771 
1772 static snd_pcm_ops_t snd_m3_playback_ops = {
1773 	.open =		snd_m3_playback_open,
1774 	.close =	snd_m3_playback_close,
1775 	.ioctl =	snd_pcm_lib_ioctl,
1776 	.hw_params =	snd_m3_pcm_hw_params,
1777 	.hw_free =	snd_m3_pcm_hw_free,
1778 	.prepare =	snd_m3_pcm_prepare,
1779 	.trigger =	snd_m3_pcm_trigger,
1780 	.pointer =	snd_m3_pcm_pointer,
1781 };
1782 
1783 static snd_pcm_ops_t snd_m3_capture_ops = {
1784 	.open =		snd_m3_capture_open,
1785 	.close =	snd_m3_capture_close,
1786 	.ioctl =	snd_pcm_lib_ioctl,
1787 	.hw_params =	snd_m3_pcm_hw_params,
1788 	.hw_free =	snd_m3_pcm_hw_free,
1789 	.prepare =	snd_m3_pcm_prepare,
1790 	.trigger =	snd_m3_pcm_trigger,
1791 	.pointer =	snd_m3_pcm_pointer,
1792 };
1793 
1794 static int __devinit
1795 snd_m3_pcm(m3_t * chip, int device)
1796 {
1797 	snd_pcm_t *pcm;
1798 	int err;
1799 
1800 	err = snd_pcm_new(chip->card, chip->card->driver, device,
1801 			  MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1802 	if (err < 0)
1803 		return err;
1804 
1805 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1806 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1807 
1808 	pcm->private_data = chip;
1809 	pcm->info_flags = 0;
1810 	strcpy(pcm->name, chip->card->driver);
1811 	chip->pcm = pcm;
1812 
1813 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1814 					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1815 
1816 	return 0;
1817 }
1818 
1819 
1820 /*
1821  * ac97 interface
1822  */
1823 
1824 /*
1825  * Wait for the ac97 serial bus to be free.
1826  * return nonzero if the bus is still busy.
1827  */
1828 static int snd_m3_ac97_wait(m3_t *chip)
1829 {
1830 	int i = 10000;
1831 
1832 	do {
1833 		if (! (snd_m3_inb(chip, 0x30) & 1))
1834 			return 0;
1835 	} while (i-- > 0);
1836 
1837 	snd_printk("ac97 serial bus busy\n");
1838 	return 1;
1839 }
1840 
1841 static unsigned short
1842 snd_m3_ac97_read(ac97_t *ac97, unsigned short reg)
1843 {
1844 	m3_t *chip = ac97->private_data;
1845 
1846 	if (snd_m3_ac97_wait(chip))
1847 		return 0xffff;
1848 	snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1849 	if (snd_m3_ac97_wait(chip))
1850 		return 0xffff;
1851 	return snd_m3_inw(chip, CODEC_DATA);
1852 }
1853 
1854 static void
1855 snd_m3_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val)
1856 {
1857 	m3_t *chip = ac97->private_data;
1858 
1859 	if (snd_m3_ac97_wait(chip))
1860 		return;
1861 	snd_m3_outw(chip, val, CODEC_DATA);
1862 	snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1863 }
1864 
1865 
1866 static void snd_m3_remote_codec_config(int io, int isremote)
1867 {
1868 	isremote = isremote ? 1 : 0;
1869 
1870 	outw((inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
1871 	     io + RING_BUS_CTRL_B);
1872 	outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
1873 	     io + SDO_OUT_DEST_CTRL);
1874 	outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
1875 	     io + SDO_IN_DEST_CTRL);
1876 }
1877 
1878 /*
1879  * hack, returns non zero on err
1880  */
1881 static int snd_m3_try_read_vendor(m3_t *chip)
1882 {
1883 	u16 ret;
1884 
1885 	if (snd_m3_ac97_wait(chip))
1886 		return 1;
1887 
1888 	snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
1889 
1890 	if (snd_m3_ac97_wait(chip))
1891 		return 1;
1892 
1893 	ret = snd_m3_inw(chip, 0x32);
1894 
1895 	return (ret == 0) || (ret == 0xffff);
1896 }
1897 
1898 static void snd_m3_ac97_reset(m3_t *chip)
1899 {
1900 	u16 dir;
1901 	int delay1 = 0, delay2 = 0, i;
1902 	int io = chip->iobase;
1903 
1904 	if (chip->allegro_flag) {
1905 		/*
1906 		 * the onboard codec on the allegro seems
1907 		 * to want to wait a very long time before
1908 		 * coming back to life
1909 		 */
1910 		delay1 = 50;
1911 		delay2 = 800;
1912 	} else {
1913 		/* maestro3 */
1914 		delay1 = 20;
1915 		delay2 = 500;
1916 	}
1917 
1918 	for (i = 0; i < 5; i++) {
1919 		dir = inw(io + GPIO_DIRECTION);
1920 		if (! chip->quirk || ! chip->quirk->irda_workaround)
1921 			dir |= 0x10; /* assuming pci bus master? */
1922 
1923 		snd_m3_remote_codec_config(io, 0);
1924 
1925 		outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
1926 		udelay(20);
1927 
1928 		outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
1929 		outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
1930 		outw(0, io + GPIO_DATA);
1931 		outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
1932 
1933 		set_current_state(TASK_UNINTERRUPTIBLE);
1934 		schedule_timeout((delay1 * HZ) / 1000);
1935 
1936 		outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
1937 		udelay(5);
1938 		/* ok, bring back the ac-link */
1939 		outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
1940 		outw(~0, io + GPIO_MASK);
1941 
1942 		set_current_state(TASK_UNINTERRUPTIBLE);
1943 		schedule_timeout((delay2 * HZ) / 1000);
1944 
1945 		if (! snd_m3_try_read_vendor(chip))
1946 			break;
1947 
1948 		delay1 += 10;
1949 		delay2 += 100;
1950 
1951 		snd_printd("maestro3: retrying codec reset with delays of %d and %d ms\n",
1952 			   delay1, delay2);
1953 	}
1954 
1955 #if 0
1956 	/* more gung-ho reset that doesn't
1957 	 * seem to work anywhere :)
1958 	 */
1959 	tmp = inw(io + RING_BUS_CTRL_A);
1960 	outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
1961 	big_mdelay(20);
1962 	outw(tmp, io + RING_BUS_CTRL_A);
1963 	big_mdelay(50);
1964 #endif
1965 }
1966 
1967 static int __devinit snd_m3_mixer(m3_t *chip)
1968 {
1969 	ac97_bus_t *pbus;
1970 	ac97_template_t ac97;
1971 	int err;
1972 	static ac97_bus_ops_t ops = {
1973 		.write = snd_m3_ac97_write,
1974 		.read = snd_m3_ac97_read,
1975 	};
1976 
1977 	if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
1978 		return err;
1979 
1980 	memset(&ac97, 0, sizeof(ac97));
1981 	ac97.private_data = chip;
1982 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
1983 		return err;
1984 
1985 	/* seems ac97 PCM needs initialization.. hack hack.. */
1986 	snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
1987 	set_current_state(TASK_UNINTERRUPTIBLE);
1988 	schedule_timeout(HZ / 10);
1989 	snd_ac97_write(chip->ac97, AC97_PCM, 0);
1990 
1991 	return 0;
1992 }
1993 
1994 
1995 /*
1996  * DSP Code images
1997  */
1998 
1999 static u16 assp_kernel_image[] __devinitdata = {
2000     0x7980, 0x0030, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x00FB, 0x7980, 0x00DD, 0x7980, 0x03B4,
2001     0x7980, 0x0332, 0x7980, 0x0287, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2002     0x7980, 0x031A, 0x7980, 0x03B4, 0x7980, 0x022F, 0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x03B4,
2003     0x7980, 0x03B4, 0x7980, 0x03B4, 0x7980, 0x0063, 0x7980, 0x006B, 0x7980, 0x03B4, 0x7980, 0x03B4,
2004     0xBF80, 0x2C7C, 0x8806, 0x8804, 0xBE40, 0xBC20, 0xAE09, 0x1000, 0xAE0A, 0x0001, 0x6938, 0xEB08,
2005     0x0053, 0x695A, 0xEB08, 0x00D6, 0x0009, 0x8B88, 0x6980, 0xE388, 0x0036, 0xBE30, 0xBC20, 0x6909,
2006     0xB801, 0x9009, 0xBE41, 0xBE41, 0x6928, 0xEB88, 0x0078, 0xBE41, 0xBE40, 0x7980, 0x0038, 0xBE41,
2007     0xBE41, 0x903A, 0x6938, 0xE308, 0x0056, 0x903A, 0xBE41, 0xBE40, 0xEF00, 0x903A, 0x6939, 0xE308,
2008     0x005E, 0x903A, 0xEF00, 0x690B, 0x660C, 0xEF8C, 0x690A, 0x660C, 0x620B, 0x6609, 0xEF00, 0x6910,
2009     0x660F, 0xEF04, 0xE388, 0x0075, 0x690E, 0x660F, 0x6210, 0x660D, 0xEF00, 0x690E, 0x660D, 0xEF00,
2010     0xAE70, 0x0001, 0xBC20, 0xAE27, 0x0001, 0x6939, 0xEB08, 0x005D, 0x6926, 0xB801, 0x9026, 0x0026,
2011     0x8B88, 0x6980, 0xE388, 0x00CB, 0x9028, 0x0D28, 0x4211, 0xE100, 0x007A, 0x4711, 0xE100, 0x00A0,
2012     0x7A80, 0x0063, 0xB811, 0x660A, 0x6209, 0xE304, 0x007A, 0x0C0B, 0x4005, 0x100A, 0xBA01, 0x9012,
2013     0x0C12, 0x4002, 0x7980, 0x00AF, 0x7A80, 0x006B, 0xBE02, 0x620E, 0x660D, 0xBA10, 0xE344, 0x007A,
2014     0x0C10, 0x4005, 0x100E, 0xBA01, 0x9012, 0x0C12, 0x4002, 0x1003, 0xBA02, 0x9012, 0x0C12, 0x4000,
2015     0x1003, 0xE388, 0x00BA, 0x1004, 0x7980, 0x00BC, 0x1004, 0xBA01, 0x9012, 0x0C12, 0x4001, 0x0C05,
2016     0x4003, 0x0C06, 0x4004, 0x1011, 0xBFB0, 0x01FF, 0x9012, 0x0C12, 0x4006, 0xBC20, 0xEF00, 0xAE26,
2017     0x1028, 0x6970, 0xBFD0, 0x0001, 0x9070, 0xE388, 0x007A, 0xAE28, 0x0000, 0xEF00, 0xAE70, 0x0300,
2018     0x0C70, 0xB00C, 0xAE5A, 0x0000, 0xEF00, 0x7A80, 0x038A, 0x697F, 0xB801, 0x907F, 0x0056, 0x8B88,
2019     0x0CA0, 0xB008, 0xAF71, 0xB000, 0x4E71, 0xE200, 0x00F3, 0xAE56, 0x1057, 0x0056, 0x0CA0, 0xB008,
2020     0x8056, 0x7980, 0x03A1, 0x0810, 0xBFA0, 0x1059, 0xE304, 0x03A1, 0x8056, 0x7980, 0x03A1, 0x7A80,
2021     0x038A, 0xBF01, 0xBE43, 0xBE59, 0x907C, 0x6937, 0xE388, 0x010D, 0xBA01, 0xE308, 0x010C, 0xAE71,
2022     0x0004, 0x0C71, 0x5000, 0x6936, 0x9037, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80, 0xBF0A,
2023     0x0560, 0xF500, 0xBF0A, 0x0520, 0xB900, 0xBB17, 0x90A0, 0x6917, 0xE388, 0x0148, 0x0D17, 0xE100,
2024     0x0127, 0xBF0C, 0x0578, 0xBF0D, 0x057C, 0x7980, 0x012B, 0xBF0C, 0x0538, 0xBF0D, 0x053C, 0x6900,
2025     0xE308, 0x0135, 0x8B8C, 0xBE59, 0xBB07, 0x90A0, 0xBC20, 0x7980, 0x0157, 0x030C, 0x8B8B, 0xB903,
2026     0x8809, 0xBEC6, 0x013E, 0x69AC, 0x90AB, 0x69AD, 0x90AB, 0x0813, 0x660A, 0xE344, 0x0144, 0x0309,
2027     0x830C, 0xBC20, 0x7980, 0x0157, 0x6955, 0xE388, 0x0157, 0x7C38, 0xBF0B, 0x0578, 0xF500, 0xBF0B,
2028     0x0538, 0xB907, 0x8809, 0xBEC6, 0x0156, 0x10AB, 0x90AA, 0x6974, 0xE388, 0x0163, 0xAE72, 0x0540,
2029     0xF500, 0xAE72, 0x0500, 0xAE61, 0x103B, 0x7A80, 0x02F6, 0x6978, 0xE388, 0x0182, 0x8B8C, 0xBF0C,
2030     0x0560, 0xE500, 0x7C40, 0x0814, 0xBA20, 0x8812, 0x733D, 0x7A80, 0x0380, 0x733E, 0x7A80, 0x0380,
2031     0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA2C, 0x8812, 0x733F, 0x7A80, 0x0380, 0x7340,
2032     0x7A80, 0x0380, 0x6975, 0xE388, 0x018E, 0xAE72, 0x0548, 0xF500, 0xAE72, 0x0508, 0xAE61, 0x1041,
2033     0x7A80, 0x02F6, 0x6979, 0xE388, 0x01AD, 0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA18,
2034     0x8812, 0x7343, 0x7A80, 0x0380, 0x7344, 0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40,
2035     0x0814, 0xBA24, 0x8812, 0x7345, 0x7A80, 0x0380, 0x7346, 0x7A80, 0x0380, 0x6976, 0xE388, 0x01B9,
2036     0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x1047, 0x7A80, 0x02F6, 0x697A, 0xE388, 0x01D8,
2037     0x8B8C, 0xBF0C, 0x0560, 0xE500, 0x7C40, 0x0814, 0xBA08, 0x8812, 0x7349, 0x7A80, 0x0380, 0x734A,
2038     0x7A80, 0x0380, 0x8B8C, 0xBF0C, 0x056C, 0xE500, 0x7C40, 0x0814, 0xBA14, 0x8812, 0x734B, 0x7A80,
2039     0x0380, 0x734C, 0x7A80, 0x0380, 0xBC21, 0xAE1C, 0x1090, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40,
2040     0x0812, 0xB804, 0x8813, 0x8B8D, 0xBF0D, 0x056C, 0xE500, 0x7C40, 0x0815, 0xB804, 0x8811, 0x7A80,
2041     0x034A, 0x8B8A, 0xBF0A, 0x0560, 0xE500, 0x7C40, 0x731F, 0xB903, 0x8809, 0xBEC6, 0x01F9, 0x548A,
2042     0xBE03, 0x98A0, 0x7320, 0xB903, 0x8809, 0xBEC6, 0x0201, 0x548A, 0xBE03, 0x98A0, 0x1F20, 0x2F1F,
2043     0x9826, 0xBC20, 0x6935, 0xE388, 0x03A1, 0x6933, 0xB801, 0x9033, 0xBFA0, 0x02EE, 0xE308, 0x03A1,
2044     0x9033, 0xBF00, 0x6951, 0xE388, 0x021F, 0x7334, 0xBE80, 0x5760, 0xBE03, 0x9F7E, 0xBE59, 0x9034,
2045     0x697E, 0x0D51, 0x9013, 0xBC20, 0x695C, 0xE388, 0x03A1, 0x735E, 0xBE80, 0x5760, 0xBE03, 0x9F7E,
2046     0xBE59, 0x905E, 0x697E, 0x0D5C, 0x9013, 0x7980, 0x03A1, 0x7A80, 0x038A, 0xBF01, 0xBE43, 0x6977,
2047     0xE388, 0x024E, 0xAE61, 0x104D, 0x0061, 0x8B88, 0x6980, 0xE388, 0x024E, 0x9071, 0x0D71, 0x000B,
2048     0xAFA0, 0x8010, 0xAFA0, 0x8010, 0x0810, 0x660A, 0xE308, 0x0249, 0x0009, 0x0810, 0x660C, 0xE388,
2049     0x024E, 0x800B, 0xBC20, 0x697B, 0xE388, 0x03A1, 0xBF0A, 0x109E, 0x8B8A, 0xAF80, 0x8014, 0x4C80,
2050     0xE100, 0x0266, 0x697C, 0xBF90, 0x0560, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0564, 0x9073, 0x0473,
2051     0x7980, 0x0270, 0x697C, 0xBF90, 0x0520, 0x9072, 0x0372, 0x697C, 0xBF90, 0x0524, 0x9073, 0x0473,
2052     0x697C, 0xB801, 0x907C, 0xBF0A, 0x10FD, 0x8B8A, 0xAF80, 0x8010, 0x734F, 0x548A, 0xBE03, 0x9880,
2053     0xBC21, 0x7326, 0x548B, 0xBE03, 0x618B, 0x988C, 0xBE03, 0x6180, 0x9880, 0x7980, 0x03A1, 0x7A80,
2054     0x038A, 0x0D28, 0x4711, 0xE100, 0x02BE, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388, 0x02B6,
2055     0xBFA0, 0x0800, 0xE388, 0x02B2, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02A3, 0x6909,
2056     0x900B, 0x7980, 0x02A5, 0xAF0B, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100, 0x02ED,
2057     0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x6909, 0x900B, 0x7980, 0x02B8, 0xAF0B, 0x4005,
2058     0xAF05, 0x4003, 0xAF06, 0x4004, 0x7980, 0x02ED, 0xAF12, 0x4006, 0x6912, 0xBFB0, 0x0C00, 0xE388,
2059     0x02E7, 0xBFA0, 0x0800, 0xE388, 0x02E3, 0x6912, 0xBFB0, 0x0C00, 0xBFA0, 0x0400, 0xE388, 0x02D4,
2060     0x690D, 0x9010, 0x7980, 0x02D6, 0xAF10, 0x4005, 0x6901, 0x9005, 0x6902, 0x9006, 0x4311, 0xE100,
2061     0x02ED, 0x6911, 0xBFC0, 0x2000, 0x9011, 0x7980, 0x02ED, 0x690D, 0x9010, 0x7980, 0x02E9, 0xAF10,
2062     0x4005, 0xAF05, 0x4003, 0xAF06, 0x4004, 0xBC20, 0x6970, 0x9071, 0x7A80, 0x0078, 0x6971, 0x9070,
2063     0x7980, 0x03A1, 0xBC20, 0x0361, 0x8B8B, 0x6980, 0xEF88, 0x0272, 0x0372, 0x7804, 0x9071, 0x0D71,
2064     0x8B8A, 0x000B, 0xB903, 0x8809, 0xBEC6, 0x0309, 0x69A8, 0x90AB, 0x69A8, 0x90AA, 0x0810, 0x660A,
2065     0xE344, 0x030F, 0x0009, 0x0810, 0x660C, 0xE388, 0x0314, 0x800B, 0xBC20, 0x6961, 0xB801, 0x9061,
2066     0x7980, 0x02F7, 0x7A80, 0x038A, 0x5D35, 0x0001, 0x6934, 0xB801, 0x9034, 0xBF0A, 0x109E, 0x8B8A,
2067     0xAF80, 0x8014, 0x4880, 0xAE72, 0x0550, 0xF500, 0xAE72, 0x0510, 0xAE61, 0x1051, 0x7A80, 0x02F6,
2068     0x7980, 0x03A1, 0x7A80, 0x038A, 0x5D35, 0x0002, 0x695E, 0xB801, 0x905E, 0xBF0A, 0x109E, 0x8B8A,
2069     0xAF80, 0x8014, 0x4780, 0xAE72, 0x0558, 0xF500, 0xAE72, 0x0518, 0xAE61, 0x105C, 0x7A80, 0x02F6,
2070     0x7980, 0x03A1, 0x001C, 0x8B88, 0x6980, 0xEF88, 0x901D, 0x0D1D, 0x100F, 0x6610, 0xE38C, 0x0358,
2071     0x690E, 0x6610, 0x620F, 0x660D, 0xBA0F, 0xE301, 0x037A, 0x0410, 0x8B8A, 0xB903, 0x8809, 0xBEC6,
2072     0x036C, 0x6A8C, 0x61AA, 0x98AB, 0x6A8C, 0x61AB, 0x98AD, 0x6A8C, 0x61AD, 0x98A9, 0x6A8C, 0x61A9,
2073     0x98AA, 0x7C04, 0x8B8B, 0x7C04, 0x8B8D, 0x7C04, 0x8B89, 0x7C04, 0x0814, 0x660E, 0xE308, 0x0379,
2074     0x040D, 0x8410, 0xBC21, 0x691C, 0xB801, 0x901C, 0x7980, 0x034A, 0xB903, 0x8809, 0x8B8A, 0xBEC6,
2075     0x0388, 0x54AC, 0xBE03, 0x618C, 0x98AA, 0xEF00, 0xBC20, 0xBE46, 0x0809, 0x906B, 0x080A, 0x906C,
2076     0x080B, 0x906D, 0x081A, 0x9062, 0x081B, 0x9063, 0x081E, 0x9064, 0xBE59, 0x881E, 0x8065, 0x8166,
2077     0x8267, 0x8368, 0x8469, 0x856A, 0xEF00, 0xBC20, 0x696B, 0x8809, 0x696C, 0x880A, 0x696D, 0x880B,
2078     0x6962, 0x881A, 0x6963, 0x881B, 0x6964, 0x881E, 0x0065, 0x0166, 0x0267, 0x0368, 0x0469, 0x056A,
2079     0xBE3A,
2080 };
2081 
2082 /*
2083  * Mini sample rate converter code image
2084  * that is to be loaded at 0x400 on the DSP.
2085  */
2086 static u16 assp_minisrc_image[] __devinitdata = {
2087 
2088     0xBF80, 0x101E, 0x906E, 0x006E, 0x8B88, 0x6980, 0xEF88, 0x906F, 0x0D6F, 0x6900, 0xEB08, 0x0412,
2089     0xBC20, 0x696E, 0xB801, 0x906E, 0x7980, 0x0403, 0xB90E, 0x8807, 0xBE43, 0xBF01, 0xBE47, 0xBE41,
2090     0x7A80, 0x002A, 0xBE40, 0x3029, 0xEFCC, 0xBE41, 0x7A80, 0x0028, 0xBE40, 0x3028, 0xEFCC, 0x6907,
2091     0xE308, 0x042A, 0x6909, 0x902C, 0x7980, 0x042C, 0x690D, 0x902C, 0x1009, 0x881A, 0x100A, 0xBA01,
2092     0x881B, 0x100D, 0x881C, 0x100E, 0xBA01, 0x881D, 0xBF80, 0x00ED, 0x881E, 0x050C, 0x0124, 0xB904,
2093     0x9027, 0x6918, 0xE308, 0x04B3, 0x902D, 0x6913, 0xBFA0, 0x7598, 0xF704, 0xAE2D, 0x00FF, 0x8B8D,
2094     0x6919, 0xE308, 0x0463, 0x691A, 0xE308, 0x0456, 0xB907, 0x8809, 0xBEC6, 0x0453, 0x10A9, 0x90AD,
2095     0x7980, 0x047C, 0xB903, 0x8809, 0xBEC6, 0x0460, 0x1889, 0x6C22, 0x90AD, 0x10A9, 0x6E23, 0x6C22,
2096     0x90AD, 0x7980, 0x047C, 0x101A, 0xE308, 0x046F, 0xB903, 0x8809, 0xBEC6, 0x046C, 0x10A9, 0x90A0,
2097     0x90AD, 0x7980, 0x047C, 0xB901, 0x8809, 0xBEC6, 0x047B, 0x1889, 0x6C22, 0x90A0, 0x90AD, 0x10A9,
2098     0x6E23, 0x6C22, 0x90A0, 0x90AD, 0x692D, 0xE308, 0x049C, 0x0124, 0xB703, 0xB902, 0x8818, 0x8B89,
2099     0x022C, 0x108A, 0x7C04, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99A0,
2100     0x108A, 0x90A0, 0x692B, 0x881F, 0x7E80, 0x055B, 0x692A, 0x8809, 0x8B89, 0x99AF, 0x7B99, 0x0484,
2101     0x0124, 0x060F, 0x101B, 0x2013, 0x901B, 0xBFA0, 0x7FFF, 0xE344, 0x04AC, 0x901B, 0x8B89, 0x7A80,
2102     0x051A, 0x6927, 0xBA01, 0x9027, 0x7A80, 0x0523, 0x6927, 0xE308, 0x049E, 0x7980, 0x050F, 0x0624,
2103     0x1026, 0x2013, 0x9026, 0xBFA0, 0x7FFF, 0xE304, 0x04C0, 0x8B8D, 0x7A80, 0x051A, 0x7980, 0x04B4,
2104     0x9026, 0x1013, 0x3026, 0x901B, 0x8B8D, 0x7A80, 0x051A, 0x7A80, 0x0523, 0x1027, 0xBA01, 0x9027,
2105     0xE308, 0x04B4, 0x0124, 0x060F, 0x8B89, 0x691A, 0xE308, 0x04EA, 0x6919, 0xE388, 0x04E0, 0xB903,
2106     0x8809, 0xBEC6, 0x04DD, 0x1FA0, 0x2FAE, 0x98A9, 0x7980, 0x050F, 0xB901, 0x8818, 0xB907, 0x8809,
2107     0xBEC6, 0x04E7, 0x10EE, 0x90A9, 0x7980, 0x050F, 0x6919, 0xE308, 0x04FE, 0xB903, 0x8809, 0xBE46,
2108     0xBEC6, 0x04FA, 0x17A0, 0xBE1E, 0x1FAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0xBE47,
2109     0x7980, 0x050F, 0xB901, 0x8809, 0xBEC6, 0x050E, 0x16A0, 0x26A0, 0xBFB7, 0xFF00, 0xBE1E, 0x1EA0,
2110     0x2EAE, 0xBFBF, 0xFF00, 0xBE13, 0xBFDF, 0x8080, 0x99A9, 0x850C, 0x860F, 0x6907, 0xE388, 0x0516,
2111     0x0D07, 0x8510, 0xBE59, 0x881E, 0xBE4A, 0xEF00, 0x101E, 0x901C, 0x101F, 0x901D, 0x10A0, 0x901E,
2112     0x10A0, 0x901F, 0xEF00, 0x101E, 0x301C, 0x9020, 0x731B, 0x5420, 0xBE03, 0x9825, 0x1025, 0x201C,
2113     0x9025, 0x7325, 0x5414, 0xBE03, 0x8B8E, 0x9880, 0x692F, 0xE388, 0x0539, 0xBE59, 0xBB07, 0x6180,
2114     0x9880, 0x8BA0, 0x101F, 0x301D, 0x9021, 0x731B, 0x5421, 0xBE03, 0x982E, 0x102E, 0x201D, 0x902E,
2115     0x732E, 0x5415, 0xBE03, 0x9880, 0x692F, 0xE388, 0x054F, 0xBE59, 0xBB07, 0x6180, 0x9880, 0x8BA0,
2116     0x6918, 0xEF08, 0x7325, 0x5416, 0xBE03, 0x98A0, 0x732E, 0x5417, 0xBE03, 0x98A0, 0xEF00, 0x8BA0,
2117     0xBEC6, 0x056B, 0xBE59, 0xBB04, 0xAA90, 0xBE04, 0xBE1E, 0x99E0, 0x8BE0, 0x69A0, 0x90D0, 0x69A0,
2118     0x90D0, 0x081F, 0xB805, 0x881F, 0x8B90, 0x69A0, 0x90D0, 0x69A0, 0x9090, 0x8BD0, 0x8BD8, 0xBE1F,
2119     0xEF00, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2120     0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
2121 };
2122 
2123 
2124 /*
2125  * initialize ASSP
2126  */
2127 
2128 #define MINISRC_LPF_LEN 10
2129 static u16 minisrc_lpf[MINISRC_LPF_LEN] __devinitdata = {
2130 	0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2131 	0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2132 };
2133 
2134 static void __devinit snd_m3_assp_init(m3_t *chip)
2135 {
2136 	unsigned int i;
2137 
2138 	/* zero kernel data */
2139 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2140 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2141 				  KDATA_BASE_ADDR + i, 0);
2142 
2143 	/* zero mixer data? */
2144 	for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2145 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2146 				  KDATA_BASE_ADDR2 + i, 0);
2147 
2148 	/* init dma pointer */
2149 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2150 			  KDATA_CURRENT_DMA,
2151 			  KDATA_DMA_XFER0);
2152 
2153 	/* write kernel into code memory.. */
2154 	for (i = 0 ; i < ARRAY_SIZE(assp_kernel_image); i++) {
2155 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2156 				  REV_B_CODE_MEMORY_BEGIN + i,
2157 				  assp_kernel_image[i]);
2158 	}
2159 
2160 	/*
2161 	 * We only have this one client and we know that 0x400
2162 	 * is free in our kernel's mem map, so lets just
2163 	 * drop it there.  It seems that the minisrc doesn't
2164 	 * need vectors, so we won't bother with them..
2165 	 */
2166 	for (i = 0; i < ARRAY_SIZE(assp_minisrc_image); i++) {
2167 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2168 				  0x400 + i,
2169 				  assp_minisrc_image[i]);
2170 	}
2171 
2172 	/*
2173 	 * write the coefficients for the low pass filter?
2174 	 */
2175 	for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2176 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2177 				  0x400 + MINISRC_COEF_LOC + i,
2178 				  minisrc_lpf[i]);
2179 	}
2180 
2181 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2182 			  0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2183 			  0x8000);
2184 
2185 	/*
2186 	 * the minisrc is the only thing on
2187 	 * our task list..
2188 	 */
2189 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2190 			  KDATA_TASK0,
2191 			  0x400);
2192 
2193 	/*
2194 	 * init the mixer number..
2195 	 */
2196 
2197 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2198 			  KDATA_MIXER_TASK_NUMBER,0);
2199 
2200 	/*
2201 	 * EXTREME KERNEL MASTER VOLUME
2202 	 */
2203 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2204 			  KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2205 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2206 			  KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2207 
2208 	chip->mixer_list.curlen = 0;
2209 	chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2210 	chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2211 	chip->adc1_list.curlen = 0;
2212 	chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2213 	chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2214 	chip->dma_list.curlen = 0;
2215 	chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2216 	chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2217 	chip->msrc_list.curlen = 0;
2218 	chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2219 	chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2220 }
2221 
2222 
2223 static int __devinit snd_m3_assp_client_init(m3_t *chip, m3_dma_t *s, int index)
2224 {
2225 	int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2226 			       MINISRC_IN_BUFFER_SIZE / 2 +
2227 			       1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2228 	int address, i;
2229 
2230 	/*
2231 	 * the revb memory map has 0x1100 through 0x1c00
2232 	 * free.
2233 	 */
2234 
2235 	/*
2236 	 * align instance address to 256 bytes so that it's
2237 	 * shifted list address is aligned.
2238 	 * list address = (mem address >> 1) >> 7;
2239 	 */
2240 	data_bytes = (data_bytes + 255) & ~255;
2241 	address = 0x1100 + ((data_bytes/2) * index);
2242 
2243 	if ((address + (data_bytes/2)) >= 0x1c00) {
2244 		snd_printk("no memory for %d bytes at ind %d (addr 0x%x)\n",
2245 			   data_bytes, index, address);
2246 		return -ENOMEM;
2247 	}
2248 
2249 	s->number = index;
2250 	s->inst.code = 0x400;
2251 	s->inst.data = address;
2252 
2253 	for (i = data_bytes / 2; i > 0; address++, i--) {
2254 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2255 				  address, 0);
2256 	}
2257 
2258 	return 0;
2259 }
2260 
2261 
2262 /*
2263  * this works for the reference board, have to find
2264  * out about others
2265  *
2266  * this needs more magic for 4 speaker, but..
2267  */
2268 static void
2269 snd_m3_amp_enable(m3_t *chip, int enable)
2270 {
2271 	int io = chip->iobase;
2272 	u16 gpo, polarity;
2273 
2274 	if (! chip->external_amp)
2275 		return;
2276 
2277 	polarity = enable ? 0 : 1;
2278 	polarity = polarity << chip->amp_gpio;
2279 	gpo = 1 << chip->amp_gpio;
2280 
2281 	outw(~gpo, io + GPIO_MASK);
2282 
2283 	outw(inw(io + GPIO_DIRECTION) | gpo,
2284 	     io + GPIO_DIRECTION);
2285 
2286 	outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2287 	     io + GPIO_DATA);
2288 
2289 	outw(0xffff, io + GPIO_MASK);
2290 }
2291 
2292 static int
2293 snd_m3_chip_init(m3_t *chip)
2294 {
2295 	struct pci_dev *pcidev = chip->pci;
2296 	u32 n;
2297 	u16 w;
2298 	u8 t; /* makes as much sense as 'n', no? */
2299 
2300 	pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2301 	w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2302 	       MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2303 	       DISABLE_LEGACY);
2304 	pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2305 
2306 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2307 	n &= REDUCED_DEBOUNCE;
2308 	n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2309 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2310 
2311 	outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2312 	pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2313 	n &= ~INT_CLK_SELECT;
2314 	if (!chip->allegro_flag) {
2315 		n &= ~INT_CLK_MULT_ENABLE;
2316 		n |= INT_CLK_SRC_NOT_PCI;
2317 	}
2318 	n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2319 	pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2320 
2321 	if (chip->allegro_flag) {
2322 		pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2323 		n |= IN_CLK_12MHZ_SELECT;
2324 		pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2325 	}
2326 
2327 	t = inb(chip->iobase + ASSP_CONTROL_A);
2328 	t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2329 	t |= ASSP_CLK_49MHZ_SELECT;
2330 	t |= ASSP_0_WS_ENABLE;
2331 	outb(t, chip->iobase + ASSP_CONTROL_A);
2332 
2333 	outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2334 
2335 	return 0;
2336 }
2337 
2338 static void
2339 snd_m3_enable_ints(m3_t *chip)
2340 {
2341 	unsigned long io = chip->iobase;
2342 
2343 	/* TODO: MPU401 not supported yet */
2344 	outw(ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/, io + HOST_INT_CTRL);
2345 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2346 	     io + ASSP_CONTROL_C);
2347 }
2348 
2349 
2350 /*
2351  */
2352 
2353 static int snd_m3_free(m3_t *chip)
2354 {
2355 	m3_dma_t *s;
2356 	int i;
2357 
2358 	if (chip->substreams) {
2359 		spin_lock_irq(&chip->reg_lock);
2360 		for (i = 0; i < chip->num_substreams; i++) {
2361 			s = &chip->substreams[i];
2362 			/* check surviving pcms; this should not happen though.. */
2363 			if (s->substream && s->running)
2364 				snd_m3_pcm_stop(chip, s, s->substream);
2365 		}
2366 		spin_unlock_irq(&chip->reg_lock);
2367 		kfree(chip->substreams);
2368 	}
2369 	if (chip->iobase) {
2370 		snd_m3_outw(chip, HOST_INT_CTRL, 0); /* disable ints */
2371 	}
2372 
2373 #ifdef CONFIG_PM
2374 	vfree(chip->suspend_mem);
2375 #endif
2376 
2377 	if (chip->irq >= 0) {
2378 		synchronize_irq(chip->irq);
2379 		free_irq(chip->irq, (void *)chip);
2380 	}
2381 
2382 	if (chip->iobase)
2383 		pci_release_regions(chip->pci);
2384 
2385 	pci_disable_device(chip->pci);
2386 	kfree(chip);
2387 	return 0;
2388 }
2389 
2390 
2391 /*
2392  * APM support
2393  */
2394 #ifdef CONFIG_PM
2395 static int m3_suspend(snd_card_t *card, pm_message_t state)
2396 {
2397 	m3_t *chip = card->pm_private_data;
2398 	int i, index;
2399 
2400 	if (chip->suspend_mem == NULL)
2401 		return 0;
2402 
2403 	snd_pcm_suspend_all(chip->pcm);
2404 	snd_ac97_suspend(chip->ac97);
2405 
2406 	big_mdelay(10); /* give the assp a chance to idle.. */
2407 
2408 	snd_m3_assp_halt(chip);
2409 
2410 	/* save dsp image */
2411 	index = 0;
2412 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2413 		chip->suspend_mem[index++] =
2414 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2415 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2416 		chip->suspend_mem[index++] =
2417 			snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2418 
2419 	/* power down apci registers */
2420 	snd_m3_outw(chip, 0xffff, 0x54);
2421 	snd_m3_outw(chip, 0xffff, 0x56);
2422 
2423 	pci_disable_device(chip->pci);
2424 	return 0;
2425 }
2426 
2427 static int m3_resume(snd_card_t *card)
2428 {
2429 	m3_t *chip = card->pm_private_data;
2430 	int i, index;
2431 
2432 	if (chip->suspend_mem == NULL)
2433 		return 0;
2434 
2435 	pci_enable_device(chip->pci);
2436 	pci_set_master(chip->pci);
2437 
2438 	/* first lets just bring everything back. .*/
2439 	snd_m3_outw(chip, 0, 0x54);
2440 	snd_m3_outw(chip, 0, 0x56);
2441 
2442 	snd_m3_chip_init(chip);
2443 	snd_m3_assp_halt(chip);
2444 	snd_m3_ac97_reset(chip);
2445 
2446 	/* restore dsp image */
2447 	index = 0;
2448 	for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2449 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2450 				  chip->suspend_mem[index++]);
2451 	for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2452 		snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2453 				  chip->suspend_mem[index++]);
2454 
2455 	/* tell the dma engine to restart itself */
2456 	snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2457 			  KDATA_DMA_ACTIVE, 0);
2458 
2459         /* restore ac97 registers */
2460 	snd_ac97_resume(chip->ac97);
2461 
2462 	snd_m3_assp_continue(chip);
2463 	snd_m3_enable_ints(chip);
2464 	snd_m3_amp_enable(chip, 1);
2465 
2466 	return 0;
2467 }
2468 #endif /* CONFIG_PM */
2469 
2470 
2471 /*
2472  */
2473 
2474 static int snd_m3_dev_free(snd_device_t *device)
2475 {
2476 	m3_t *chip = device->device_data;
2477 	return snd_m3_free(chip);
2478 }
2479 
2480 static int __devinit
2481 snd_m3_create(snd_card_t *card, struct pci_dev *pci,
2482 	      int enable_amp,
2483 	      int amp_gpio,
2484 	      m3_t **chip_ret)
2485 {
2486 	m3_t *chip;
2487 	int i, err;
2488 	struct m3_quirk *quirk;
2489 	u16 subsystem_vendor, subsystem_device;
2490 	static snd_device_ops_t ops = {
2491 		.dev_free =	snd_m3_dev_free,
2492 	};
2493 
2494 	*chip_ret = NULL;
2495 
2496 	if (pci_enable_device(pci))
2497 		return -EIO;
2498 
2499 	/* check, if we can restrict PCI DMA transfers to 28 bits */
2500 	if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
2501 	    pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
2502 		snd_printk("architecture does not support 28bit PCI busmaster DMA\n");
2503 		pci_disable_device(pci);
2504 		return -ENXIO;
2505 	}
2506 
2507 	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
2508 	if (chip == NULL) {
2509 		pci_disable_device(pci);
2510 		return -ENOMEM;
2511 	}
2512 
2513 	spin_lock_init(&chip->reg_lock);
2514 	switch (pci->device) {
2515 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2516 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2517 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2518 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2519 		chip->allegro_flag = 1;
2520 		break;
2521 	}
2522 
2523 	chip->card = card;
2524 	chip->pci = pci;
2525 	chip->irq = -1;
2526 
2527 	pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
2528 	pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device);
2529 
2530 	for (quirk = m3_quirk_list; quirk->vendor; quirk++) {
2531 		if (subsystem_vendor == quirk->vendor &&
2532 		    subsystem_device == quirk->device) {
2533 			printk(KERN_INFO "maestro3: enabled hack for '%s'\n", quirk->name);
2534 			chip->quirk = quirk;
2535 			break;
2536 		}
2537 	}
2538 
2539 	chip->external_amp = enable_amp;
2540 	if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2541 		chip->amp_gpio = amp_gpio;
2542 	else if (chip->quirk && chip->quirk->amp_gpio >= 0)
2543 		chip->amp_gpio = chip->quirk->amp_gpio;
2544 	else if (chip->allegro_flag)
2545 		chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2546 	else /* presumably this is for all 'maestro3's.. */
2547 		chip->amp_gpio = GPO_EXT_AMP_M3;
2548 
2549 	chip->num_substreams = NR_DSPS;
2550 	chip->substreams = kmalloc(sizeof(m3_dma_t) * chip->num_substreams, GFP_KERNEL);
2551 	if (chip->substreams == NULL) {
2552 		kfree(chip);
2553 		pci_disable_device(pci);
2554 		return -ENOMEM;
2555 	}
2556 	memset(chip->substreams, 0, sizeof(m3_dma_t) * chip->num_substreams);
2557 
2558 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2559 		snd_m3_free(chip);
2560 		return err;
2561 	}
2562 	chip->iobase = pci_resource_start(pci, 0);
2563 
2564 	/* just to be sure */
2565 	pci_set_master(pci);
2566 
2567 	snd_m3_chip_init(chip);
2568 	snd_m3_assp_halt(chip);
2569 
2570 	snd_m3_ac97_reset(chip);
2571 
2572 	snd_m3_assp_init(chip);
2573 	snd_m3_amp_enable(chip, 1);
2574 
2575 	if (request_irq(pci->irq, snd_m3_interrupt, SA_INTERRUPT|SA_SHIRQ,
2576 			card->driver, (void *)chip)) {
2577 		snd_printk("unable to grab IRQ %d\n", pci->irq);
2578 		snd_m3_free(chip);
2579 		return -ENOMEM;
2580 	}
2581 	chip->irq = pci->irq;
2582 
2583 #ifdef CONFIG_PM
2584 	chip->suspend_mem = vmalloc(sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH));
2585 	if (chip->suspend_mem == NULL)
2586 		snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2587 	else
2588 		snd_card_set_pm_callback(card, m3_suspend, m3_resume, chip);
2589 #endif
2590 
2591 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2592 		snd_m3_free(chip);
2593 		return err;
2594 	}
2595 
2596 	if ((err = snd_m3_mixer(chip)) < 0)
2597 		return err;
2598 
2599 	for (i = 0; i < chip->num_substreams; i++) {
2600 		m3_dma_t *s = &chip->substreams[i];
2601 		s->chip = chip;
2602 		if ((err = snd_m3_assp_client_init(chip, s, i)) < 0)
2603 			return err;
2604 	}
2605 
2606 	if ((err = snd_m3_pcm(chip, 0)) < 0)
2607 		return err;
2608 
2609 	snd_m3_enable_ints(chip);
2610 	snd_m3_assp_continue(chip);
2611 
2612 	snd_card_set_dev(card, &pci->dev);
2613 
2614 	*chip_ret = chip;
2615 
2616 	return 0;
2617 }
2618 
2619 /*
2620  */
2621 static int __devinit
2622 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2623 {
2624 	static int dev;
2625 	snd_card_t *card;
2626 	m3_t *chip;
2627 	int err;
2628 
2629 	/* don't pick up modems */
2630 	if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2631 		return -ENODEV;
2632 
2633 	if (dev >= SNDRV_CARDS)
2634 		return -ENODEV;
2635 	if (!enable[dev]) {
2636 		dev++;
2637 		return -ENOENT;
2638 	}
2639 
2640 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2641 	if (card == NULL)
2642 		return -ENOMEM;
2643 
2644 	switch (pci->device) {
2645 	case PCI_DEVICE_ID_ESS_ALLEGRO:
2646 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2647 		strcpy(card->driver, "Allegro");
2648 		break;
2649 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2650 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
2651 		strcpy(card->driver, "Canyon3D-2");
2652 		break;
2653 	default:
2654 		strcpy(card->driver, "Maestro3");
2655 		break;
2656 	}
2657 
2658 	if ((err = snd_m3_create(card, pci,
2659 				 external_amp[dev],
2660 				 amp_gpio[dev],
2661 				 &chip)) < 0) {
2662 		snd_card_free(card);
2663 		return err;
2664 	}
2665 
2666 	sprintf(card->shortname, "ESS %s PCI", card->driver);
2667 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2668 		card->shortname, chip->iobase, chip->irq);
2669 
2670 	if ((err = snd_card_register(card)) < 0) {
2671 		snd_card_free(card);
2672 		return err;
2673 	}
2674 
2675 #if 0 /* TODO: not supported yet */
2676 	/* TODO enable midi irq and i/o */
2677 	err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2678 				  chip->iobase + MPU401_DATA_PORT, 1,
2679 				  chip->irq, 0, &chip->rmidi);
2680 	if (err < 0)
2681 		printk(KERN_WARNING "maestro3: no midi support.\n");
2682 #endif
2683 
2684 	pci_set_drvdata(pci, card);
2685 	dev++;
2686 	return 0;
2687 }
2688 
2689 static void __devexit snd_m3_remove(struct pci_dev *pci)
2690 {
2691 	snd_card_free(pci_get_drvdata(pci));
2692 	pci_set_drvdata(pci, NULL);
2693 }
2694 
2695 static struct pci_driver driver = {
2696 	.name = "Maestro3",
2697 	.id_table = snd_m3_ids,
2698 	.probe = snd_m3_probe,
2699 	.remove = __devexit_p(snd_m3_remove),
2700 	SND_PCI_PM_CALLBACKS
2701 };
2702 
2703 static int __init alsa_card_m3_init(void)
2704 {
2705 	return pci_register_driver(&driver);
2706 }
2707 
2708 static void __exit alsa_card_m3_exit(void)
2709 {
2710 	pci_unregister_driver(&driver);
2711 }
2712 
2713 module_init(alsa_card_m3_init)
2714 module_exit(alsa_card_m3_exit)
2715