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TOMOYO Linux Cross Reference
Linux/sound/pci/maestro3.c

Version: ~ [ linux-5.4-rc3 ] ~ [ linux-5.3.6 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.79 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.149 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.196 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.196 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.75 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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

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