xref: /linux/sound/pci/ens1370.c (revision c537b994505099b7197e7d3125b942ecbcc51eb6)
1 /*
2  *  Driver for Ensoniq ES1370/ES1371 AudioPCI soundcard
3  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>,
4  *		     Thomas Sailer <sailer@ife.ee.ethz.ch>
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 /* Power-Management-Code ( CONFIG_PM )
23  * for ens1371 only ( FIXME )
24  * derived from cs4281.c, atiixp.c and via82xx.c
25  * using http://www.alsa-project.org/~iwai/writing-an-alsa-driver/c1540.htm
26  * by Kurt J. Bosch
27  */
28 
29 #include <sound/driver.h>
30 #include <asm/io.h>
31 #include <linux/delay.h>
32 #include <linux/interrupt.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/slab.h>
36 #include <linux/gameport.h>
37 #include <linux/moduleparam.h>
38 #include <linux/mutex.h>
39 
40 #include <sound/core.h>
41 #include <sound/control.h>
42 #include <sound/pcm.h>
43 #include <sound/rawmidi.h>
44 #ifdef CHIP1371
45 #include <sound/ac97_codec.h>
46 #else
47 #include <sound/ak4531_codec.h>
48 #endif
49 #include <sound/initval.h>
50 #include <sound/asoundef.h>
51 
52 #ifndef CHIP1371
53 #undef CHIP1370
54 #define CHIP1370
55 #endif
56 
57 #ifdef CHIP1370
58 #define DRIVER_NAME "ENS1370"
59 #else
60 #define DRIVER_NAME "ENS1371"
61 #endif
62 
63 
64 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Thomas Sailer <sailer@ife.ee.ethz.ch>");
65 MODULE_LICENSE("GPL");
66 #ifdef CHIP1370
67 MODULE_DESCRIPTION("Ensoniq AudioPCI ES1370");
68 MODULE_SUPPORTED_DEVICE("{{Ensoniq,AudioPCI-97 ES1370},"
69 	        "{Creative Labs,SB PCI64/128 (ES1370)}}");
70 #endif
71 #ifdef CHIP1371
72 MODULE_DESCRIPTION("Ensoniq/Creative AudioPCI ES1371+");
73 MODULE_SUPPORTED_DEVICE("{{Ensoniq,AudioPCI ES1371/73},"
74 		"{Ensoniq,AudioPCI ES1373},"
75 		"{Creative Labs,Ectiva EV1938},"
76 		"{Creative Labs,SB PCI64/128 (ES1371/73)},"
77 		"{Creative Labs,Vibra PCI128},"
78 		"{Ectiva,EV1938}}");
79 #endif
80 
81 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
82 #define SUPPORT_JOYSTICK
83 #endif
84 
85 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
86 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
87 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable switches */
88 #ifdef SUPPORT_JOYSTICK
89 #ifdef CHIP1371
90 static int joystick_port[SNDRV_CARDS];
91 #else
92 static int joystick[SNDRV_CARDS];
93 #endif
94 #endif
95 #ifdef CHIP1371
96 static int spdif[SNDRV_CARDS];
97 static int lineio[SNDRV_CARDS];
98 #endif
99 
100 module_param_array(index, int, NULL, 0444);
101 MODULE_PARM_DESC(index, "Index value for Ensoniq AudioPCI soundcard.");
102 module_param_array(id, charp, NULL, 0444);
103 MODULE_PARM_DESC(id, "ID string for Ensoniq AudioPCI soundcard.");
104 module_param_array(enable, bool, NULL, 0444);
105 MODULE_PARM_DESC(enable, "Enable Ensoniq AudioPCI soundcard.");
106 #ifdef SUPPORT_JOYSTICK
107 #ifdef CHIP1371
108 module_param_array(joystick_port, int, NULL, 0444);
109 MODULE_PARM_DESC(joystick_port, "Joystick port address.");
110 #else
111 module_param_array(joystick, bool, NULL, 0444);
112 MODULE_PARM_DESC(joystick, "Enable joystick.");
113 #endif
114 #endif /* SUPPORT_JOYSTICK */
115 #ifdef CHIP1371
116 module_param_array(spdif, int, NULL, 0444);
117 MODULE_PARM_DESC(spdif, "S/PDIF output (-1 = none, 0 = auto, 1 = force).");
118 module_param_array(lineio, int, NULL, 0444);
119 MODULE_PARM_DESC(lineio, "Line In to Rear Out (0 = auto, 1 = force).");
120 #endif
121 
122 /* ES1371 chip ID */
123 /* This is a little confusing because all ES1371 compatible chips have the
124    same DEVICE_ID, the only thing differentiating them is the REV_ID field.
125    This is only significant if you want to enable features on the later parts.
126    Yes, I know it's stupid and why didn't we use the sub IDs?
127 */
128 #define ES1371REV_ES1373_A  0x04
129 #define ES1371REV_ES1373_B  0x06
130 #define ES1371REV_CT5880_A  0x07
131 #define CT5880REV_CT5880_C  0x02
132 #define CT5880REV_CT5880_D  0x03	/* ??? -jk */
133 #define CT5880REV_CT5880_E  0x04	/* mw */
134 #define ES1371REV_ES1371_B  0x09
135 #define EV1938REV_EV1938_A  0x00
136 #define ES1371REV_ES1373_8  0x08
137 
138 /*
139  * Direct registers
140  */
141 
142 #define ES_REG(ensoniq, x) ((ensoniq)->port + ES_REG_##x)
143 
144 #define ES_REG_CONTROL	0x00	/* R/W: Interrupt/Chip select control register */
145 #define   ES_1370_ADC_STOP	(1<<31)		/* disable capture buffer transfers */
146 #define   ES_1370_XCTL1 	(1<<30)		/* general purpose output bit */
147 #define   ES_1373_BYPASS_P1	(1<<31)		/* bypass SRC for PB1 */
148 #define   ES_1373_BYPASS_P2	(1<<30)		/* bypass SRC for PB2 */
149 #define   ES_1373_BYPASS_R	(1<<29)		/* bypass SRC for REC */
150 #define   ES_1373_TEST_BIT	(1<<28)		/* should be set to 0 for normal operation */
151 #define   ES_1373_RECEN_B	(1<<27)		/* mix record with playback for I2S/SPDIF out */
152 #define   ES_1373_SPDIF_THRU	(1<<26)		/* 0 = SPDIF thru mode, 1 = SPDIF == dig out */
153 #define   ES_1371_JOY_ASEL(o)	(((o)&0x03)<<24)/* joystick port mapping */
154 #define   ES_1371_JOY_ASELM	(0x03<<24)	/* mask for above */
155 #define   ES_1371_JOY_ASELI(i)  (((i)>>24)&0x03)
156 #define   ES_1371_GPIO_IN(i)	(((i)>>20)&0x0f)/* GPIO in [3:0] pins - R/O */
157 #define   ES_1370_PCLKDIVO(o)	(((o)&0x1fff)<<16)/* clock divide ratio for DAC2 */
158 #define   ES_1370_PCLKDIVM	((0x1fff)<<16)	/* mask for above */
159 #define   ES_1370_PCLKDIVI(i)	(((i)>>16)&0x1fff)/* clock divide ratio for DAC2 */
160 #define   ES_1371_GPIO_OUT(o)	(((o)&0x0f)<<16)/* GPIO out [3:0] pins - W/R */
161 #define   ES_1371_GPIO_OUTM     (0x0f<<16)	/* mask for above */
162 #define   ES_MSFMTSEL		(1<<15)		/* MPEG serial data format; 0 = SONY, 1 = I2S */
163 #define   ES_1370_M_SBB		(1<<14)		/* clock source for DAC - 0 = clock generator; 1 = MPEG clocks */
164 #define   ES_1371_SYNC_RES	(1<<14)		/* Warm AC97 reset */
165 #define   ES_1370_WTSRSEL(o)	(((o)&0x03)<<12)/* fixed frequency clock for DAC1 */
166 #define   ES_1370_WTSRSELM	(0x03<<12)	/* mask for above */
167 #define   ES_1371_ADC_STOP	(1<<13)		/* disable CCB transfer capture information */
168 #define   ES_1371_PWR_INTRM	(1<<12)		/* power level change interrupts enable */
169 #define   ES_1370_DAC_SYNC	(1<<11)		/* DAC's are synchronous */
170 #define   ES_1371_M_CB		(1<<11)		/* capture clock source; 0 = AC'97 ADC; 1 = I2S */
171 #define   ES_CCB_INTRM		(1<<10)		/* CCB voice interrupts enable */
172 #define   ES_1370_M_CB		(1<<9)		/* capture clock source; 0 = ADC; 1 = MPEG */
173 #define   ES_1370_XCTL0		(1<<8)		/* generap purpose output bit */
174 #define   ES_1371_PDLEV(o)	(((o)&0x03)<<8)	/* current power down level */
175 #define   ES_1371_PDLEVM	(0x03<<8)	/* mask for above */
176 #define   ES_BREQ		(1<<7)		/* memory bus request enable */
177 #define   ES_DAC1_EN		(1<<6)		/* DAC1 playback channel enable */
178 #define   ES_DAC2_EN		(1<<5)		/* DAC2 playback channel enable */
179 #define   ES_ADC_EN		(1<<4)		/* ADC capture channel enable */
180 #define   ES_UART_EN		(1<<3)		/* UART enable */
181 #define   ES_JYSTK_EN		(1<<2)		/* Joystick module enable */
182 #define   ES_1370_CDC_EN	(1<<1)		/* Codec interface enable */
183 #define   ES_1371_XTALCKDIS	(1<<1)		/* Xtal clock disable */
184 #define   ES_1370_SERR_DISABLE	(1<<0)		/* PCI serr signal disable */
185 #define   ES_1371_PCICLKDIS     (1<<0)		/* PCI clock disable */
186 #define ES_REG_STATUS	0x04	/* R/O: Interrupt/Chip select status register */
187 #define   ES_INTR               (1<<31)		/* Interrupt is pending */
188 #define   ES_1371_ST_AC97_RST	(1<<29)		/* CT5880 AC'97 Reset bit */
189 #define   ES_1373_REAR_BIT27	(1<<27)		/* rear bits: 000 - front, 010 - mirror, 101 - separate */
190 #define   ES_1373_REAR_BIT26	(1<<26)
191 #define   ES_1373_REAR_BIT24	(1<<24)
192 #define   ES_1373_GPIO_INT_EN(o)(((o)&0x0f)<<20)/* GPIO [3:0] pins - interrupt enable */
193 #define   ES_1373_SPDIF_EN	(1<<18)		/* SPDIF enable */
194 #define   ES_1373_SPDIF_TEST	(1<<17)		/* SPDIF test */
195 #define   ES_1371_TEST          (1<<16)		/* test ASIC */
196 #define   ES_1373_GPIO_INT(i)	(((i)&0x0f)>>12)/* GPIO [3:0] pins - interrupt pending */
197 #define   ES_1370_CSTAT		(1<<10)		/* CODEC is busy or register write in progress */
198 #define   ES_1370_CBUSY         (1<<9)		/* CODEC is busy */
199 #define   ES_1370_CWRIP		(1<<8)		/* CODEC register write in progress */
200 #define   ES_1371_SYNC_ERR	(1<<8)		/* CODEC synchronization error occurred */
201 #define   ES_1371_VC(i)         (((i)>>6)&0x03)	/* voice code from CCB module */
202 #define   ES_1370_VC(i)		(((i)>>5)&0x03)	/* voice code from CCB module */
203 #define   ES_1371_MPWR          (1<<5)		/* power level interrupt pending */
204 #define   ES_MCCB		(1<<4)		/* CCB interrupt pending */
205 #define   ES_UART		(1<<3)		/* UART interrupt pending */
206 #define   ES_DAC1		(1<<2)		/* DAC1 channel interrupt pending */
207 #define   ES_DAC2		(1<<1)		/* DAC2 channel interrupt pending */
208 #define   ES_ADC		(1<<0)		/* ADC channel interrupt pending */
209 #define ES_REG_UART_DATA 0x08	/* R/W: UART data register */
210 #define ES_REG_UART_STATUS 0x09	/* R/O: UART status register */
211 #define   ES_RXINT		(1<<7)		/* RX interrupt occurred */
212 #define   ES_TXINT		(1<<2)		/* TX interrupt occurred */
213 #define   ES_TXRDY		(1<<1)		/* transmitter ready */
214 #define   ES_RXRDY		(1<<0)		/* receiver ready */
215 #define ES_REG_UART_CONTROL 0x09	/* W/O: UART control register */
216 #define   ES_RXINTEN		(1<<7)		/* RX interrupt enable */
217 #define   ES_TXINTENO(o)	(((o)&0x03)<<5)	/* TX interrupt enable */
218 #define   ES_TXINTENM		(0x03<<5)	/* mask for above */
219 #define   ES_TXINTENI(i)	(((i)>>5)&0x03)
220 #define   ES_CNTRL(o)		(((o)&0x03)<<0)	/* control */
221 #define   ES_CNTRLM		(0x03<<0)	/* mask for above */
222 #define ES_REG_UART_RES	0x0a	/* R/W: UART reserver register */
223 #define   ES_TEST_MODE		(1<<0)		/* test mode enabled */
224 #define ES_REG_MEM_PAGE	0x0c	/* R/W: Memory page register */
225 #define   ES_MEM_PAGEO(o)	(((o)&0x0f)<<0)	/* memory page select - out */
226 #define   ES_MEM_PAGEM		(0x0f<<0)	/* mask for above */
227 #define   ES_MEM_PAGEI(i)	(((i)>>0)&0x0f) /* memory page select - in */
228 #define ES_REG_1370_CODEC 0x10	/* W/O: Codec write register address */
229 #define   ES_1370_CODEC_WRITE(a,d) ((((a)&0xff)<<8)|(((d)&0xff)<<0))
230 #define ES_REG_1371_CODEC 0x14	/* W/R: Codec Read/Write register address */
231 #define   ES_1371_CODEC_RDY	   (1<<31)	/* codec ready */
232 #define   ES_1371_CODEC_WIP	   (1<<30)	/* codec register access in progress */
233 #define   ES_1371_CODEC_PIRD	   (1<<23)	/* codec read/write select register */
234 #define   ES_1371_CODEC_WRITE(a,d) ((((a)&0x7f)<<16)|(((d)&0xffff)<<0))
235 #define   ES_1371_CODEC_READS(a)   ((((a)&0x7f)<<16)|ES_1371_CODEC_PIRD)
236 #define   ES_1371_CODEC_READ(i)    (((i)>>0)&0xffff)
237 
238 #define ES_REG_1371_SMPRATE 0x10	/* W/R: Codec rate converter interface register */
239 #define   ES_1371_SRC_RAM_ADDRO(o) (((o)&0x7f)<<25)/* address of the sample rate converter */
240 #define   ES_1371_SRC_RAM_ADDRM	   (0x7f<<25)	/* mask for above */
241 #define   ES_1371_SRC_RAM_ADDRI(i) (((i)>>25)&0x7f)/* address of the sample rate converter */
242 #define   ES_1371_SRC_RAM_WE	   (1<<24)	/* R/W: read/write control for sample rate converter */
243 #define   ES_1371_SRC_RAM_BUSY     (1<<23)	/* R/O: sample rate memory is busy */
244 #define   ES_1371_SRC_DISABLE      (1<<22)	/* sample rate converter disable */
245 #define   ES_1371_DIS_P1	   (1<<21)	/* playback channel 1 accumulator update disable */
246 #define   ES_1371_DIS_P2	   (1<<20)	/* playback channel 1 accumulator update disable */
247 #define   ES_1371_DIS_R1	   (1<<19)	/* capture channel accumulator update disable */
248 #define   ES_1371_SRC_RAM_DATAO(o) (((o)&0xffff)<<0)/* current value of the sample rate converter */
249 #define   ES_1371_SRC_RAM_DATAM	   (0xffff<<0)	/* mask for above */
250 #define   ES_1371_SRC_RAM_DATAI(i) (((i)>>0)&0xffff)/* current value of the sample rate converter */
251 
252 #define ES_REG_1371_LEGACY 0x18	/* W/R: Legacy control/status register */
253 #define   ES_1371_JFAST		(1<<31)		/* fast joystick timing */
254 #define   ES_1371_HIB		(1<<30)		/* host interrupt blocking enable */
255 #define   ES_1371_VSB		(1<<29)		/* SB; 0 = addr 0x220xH, 1 = 0x22FxH */
256 #define   ES_1371_VMPUO(o)	(((o)&0x03)<<27)/* base register address; 0 = 0x320xH; 1 = 0x330xH; 2 = 0x340xH; 3 = 0x350xH */
257 #define   ES_1371_VMPUM		(0x03<<27)	/* mask for above */
258 #define   ES_1371_VMPUI(i)	(((i)>>27)&0x03)/* base register address */
259 #define   ES_1371_VCDCO(o)	(((o)&0x03)<<25)/* CODEC; 0 = 0x530xH; 1 = undefined; 2 = 0xe80xH; 3 = 0xF40xH */
260 #define   ES_1371_VCDCM		(0x03<<25)	/* mask for above */
261 #define   ES_1371_VCDCI(i)	(((i)>>25)&0x03)/* CODEC address */
262 #define   ES_1371_FIRQ		(1<<24)		/* force an interrupt */
263 #define   ES_1371_SDMACAP	(1<<23)		/* enable event capture for slave DMA controller */
264 #define   ES_1371_SPICAP	(1<<22)		/* enable event capture for slave IRQ controller */
265 #define   ES_1371_MDMACAP	(1<<21)		/* enable event capture for master DMA controller */
266 #define   ES_1371_MPICAP	(1<<20)		/* enable event capture for master IRQ controller */
267 #define   ES_1371_ADCAP		(1<<19)		/* enable event capture for ADLIB register; 0x388xH */
268 #define   ES_1371_SVCAP		(1<<18)		/* enable event capture for SB registers */
269 #define   ES_1371_CDCCAP	(1<<17)		/* enable event capture for CODEC registers */
270 #define   ES_1371_BACAP		(1<<16)		/* enable event capture for SoundScape base address */
271 #define   ES_1371_EXI(i)	(((i)>>8)&0x07)	/* event number */
272 #define   ES_1371_AI(i)		(((i)>>3)&0x1f)	/* event significant I/O address */
273 #define   ES_1371_WR		(1<<2)	/* event capture; 0 = read; 1 = write */
274 #define   ES_1371_LEGINT	(1<<0)	/* interrupt for legacy events; 0 = interrupt did occur */
275 
276 #define ES_REG_CHANNEL_STATUS 0x1c /* R/W: first 32-bits from S/PDIF channel status block, es1373 */
277 
278 #define ES_REG_SERIAL	0x20	/* R/W: Serial interface control register */
279 #define   ES_1371_DAC_TEST	(1<<22)		/* DAC test mode enable */
280 #define   ES_P2_END_INCO(o)	(((o)&0x07)<<19)/* binary offset value to increment / loop end */
281 #define   ES_P2_END_INCM	(0x07<<19)	/* mask for above */
282 #define   ES_P2_END_INCI(i)	(((i)>>16)&0x07)/* binary offset value to increment / loop end */
283 #define   ES_P2_ST_INCO(o)	(((o)&0x07)<<16)/* binary offset value to increment / start */
284 #define   ES_P2_ST_INCM		(0x07<<16)	/* mask for above */
285 #define   ES_P2_ST_INCI(i)	(((i)<<16)&0x07)/* binary offset value to increment / start */
286 #define   ES_R1_LOOP_SEL	(1<<15)		/* ADC; 0 - loop mode; 1 = stop mode */
287 #define   ES_P2_LOOP_SEL	(1<<14)		/* DAC2; 0 - loop mode; 1 = stop mode */
288 #define   ES_P1_LOOP_SEL	(1<<13)		/* DAC1; 0 - loop mode; 1 = stop mode */
289 #define   ES_P2_PAUSE		(1<<12)		/* DAC2; 0 - play mode; 1 = pause mode */
290 #define   ES_P1_PAUSE		(1<<11)		/* DAC1; 0 - play mode; 1 = pause mode */
291 #define   ES_R1_INT_EN		(1<<10)		/* ADC interrupt enable */
292 #define   ES_P2_INT_EN		(1<<9)		/* DAC2 interrupt enable */
293 #define   ES_P1_INT_EN		(1<<8)		/* DAC1 interrupt enable */
294 #define   ES_P1_SCT_RLD		(1<<7)		/* force sample counter reload for DAC1 */
295 #define   ES_P2_DAC_SEN		(1<<6)		/* when stop mode: 0 - DAC2 play back zeros; 1 = DAC2 play back last sample */
296 #define   ES_R1_MODEO(o)	(((o)&0x03)<<4)	/* ADC mode; 0 = 8-bit mono; 1 = 8-bit stereo; 2 = 16-bit mono; 3 = 16-bit stereo */
297 #define   ES_R1_MODEM		(0x03<<4)	/* mask for above */
298 #define   ES_R1_MODEI(i)	(((i)>>4)&0x03)
299 #define   ES_P2_MODEO(o)	(((o)&0x03)<<2)	/* DAC2 mode; -- '' -- */
300 #define   ES_P2_MODEM		(0x03<<2)	/* mask for above */
301 #define   ES_P2_MODEI(i)	(((i)>>2)&0x03)
302 #define   ES_P1_MODEO(o)	(((o)&0x03)<<0)	/* DAC1 mode; -- '' -- */
303 #define   ES_P1_MODEM		(0x03<<0)	/* mask for above */
304 #define   ES_P1_MODEI(i)	(((i)>>0)&0x03)
305 
306 #define ES_REG_DAC1_COUNT 0x24	/* R/W: DAC1 sample count register */
307 #define ES_REG_DAC2_COUNT 0x28	/* R/W: DAC2 sample count register */
308 #define ES_REG_ADC_COUNT  0x2c	/* R/W: ADC sample count register */
309 #define   ES_REG_CURR_COUNT(i)  (((i)>>16)&0xffff)
310 #define   ES_REG_COUNTO(o)	(((o)&0xffff)<<0)
311 #define   ES_REG_COUNTM		(0xffff<<0)
312 #define   ES_REG_COUNTI(i)	(((i)>>0)&0xffff)
313 
314 #define ES_REG_DAC1_FRAME 0x30	/* R/W: PAGE 0x0c; DAC1 frame address */
315 #define ES_REG_DAC1_SIZE  0x34	/* R/W: PAGE 0x0c; DAC1 frame size */
316 #define ES_REG_DAC2_FRAME 0x38	/* R/W: PAGE 0x0c; DAC2 frame address */
317 #define ES_REG_DAC2_SIZE  0x3c	/* R/W: PAGE 0x0c; DAC2 frame size */
318 #define ES_REG_ADC_FRAME  0x30	/* R/W: PAGE 0x0d; ADC frame address */
319 #define ES_REG_ADC_SIZE	  0x34	/* R/W: PAGE 0x0d; ADC frame size */
320 #define   ES_REG_FCURR_COUNTO(o) (((o)&0xffff)<<16)
321 #define   ES_REG_FCURR_COUNTM    (0xffff<<16)
322 #define   ES_REG_FCURR_COUNTI(i) (((i)>>14)&0x3fffc)
323 #define   ES_REG_FSIZEO(o)	 (((o)&0xffff)<<0)
324 #define   ES_REG_FSIZEM		 (0xffff<<0)
325 #define   ES_REG_FSIZEI(i)	 (((i)>>0)&0xffff)
326 #define ES_REG_PHANTOM_FRAME 0x38 /* R/W: PAGE 0x0d: phantom frame address */
327 #define ES_REG_PHANTOM_COUNT 0x3c /* R/W: PAGE 0x0d: phantom frame count */
328 
329 #define ES_REG_UART_FIFO  0x30	/* R/W: PAGE 0x0e; UART FIFO register */
330 #define   ES_REG_UF_VALID	 (1<<8)
331 #define   ES_REG_UF_BYTEO(o)	 (((o)&0xff)<<0)
332 #define   ES_REG_UF_BYTEM	 (0xff<<0)
333 #define   ES_REG_UF_BYTEI(i)	 (((i)>>0)&0xff)
334 
335 
336 /*
337  *  Pages
338  */
339 
340 #define ES_PAGE_DAC	0x0c
341 #define ES_PAGE_ADC	0x0d
342 #define ES_PAGE_UART	0x0e
343 #define ES_PAGE_UART1	0x0f
344 
345 /*
346  *  Sample rate converter addresses
347  */
348 
349 #define ES_SMPREG_DAC1		0x70
350 #define ES_SMPREG_DAC2		0x74
351 #define ES_SMPREG_ADC		0x78
352 #define ES_SMPREG_VOL_ADC	0x6c
353 #define ES_SMPREG_VOL_DAC1	0x7c
354 #define ES_SMPREG_VOL_DAC2	0x7e
355 #define ES_SMPREG_TRUNC_N	0x00
356 #define ES_SMPREG_INT_REGS	0x01
357 #define ES_SMPREG_ACCUM_FRAC	0x02
358 #define ES_SMPREG_VFREQ_FRAC	0x03
359 
360 /*
361  *  Some contants
362  */
363 
364 #define ES_1370_SRCLOCK	   1411200
365 #define ES_1370_SRTODIV(x) (ES_1370_SRCLOCK/(x)-2)
366 
367 /*
368  *  Open modes
369  */
370 
371 #define ES_MODE_PLAY1	0x0001
372 #define ES_MODE_PLAY2	0x0002
373 #define ES_MODE_CAPTURE	0x0004
374 
375 #define ES_MODE_OUTPUT	0x0001	/* for MIDI */
376 #define ES_MODE_INPUT	0x0002	/* for MIDI */
377 
378 /*
379 
380  */
381 
382 struct ensoniq {
383 	spinlock_t reg_lock;
384 	struct mutex src_mutex;
385 
386 	int irq;
387 
388 	unsigned long playback1size;
389 	unsigned long playback2size;
390 	unsigned long capture3size;
391 
392 	unsigned long port;
393 	unsigned int mode;
394 	unsigned int uartm;	/* UART mode */
395 
396 	unsigned int ctrl;	/* control register */
397 	unsigned int sctrl;	/* serial control register */
398 	unsigned int cssr;	/* control status register */
399 	unsigned int uartc;	/* uart control register */
400 	unsigned int rev;	/* chip revision */
401 
402 	union {
403 #ifdef CHIP1371
404 		struct {
405 			struct snd_ac97 *ac97;
406 		} es1371;
407 #else
408 		struct {
409 			int pclkdiv_lock;
410 			struct snd_ak4531 *ak4531;
411 		} es1370;
412 #endif
413 	} u;
414 
415 	struct pci_dev *pci;
416 	struct snd_card *card;
417 	struct snd_pcm *pcm1;	/* DAC1/ADC PCM */
418 	struct snd_pcm *pcm2;	/* DAC2 PCM */
419 	struct snd_pcm_substream *playback1_substream;
420 	struct snd_pcm_substream *playback2_substream;
421 	struct snd_pcm_substream *capture_substream;
422 	unsigned int p1_dma_size;
423 	unsigned int p2_dma_size;
424 	unsigned int c_dma_size;
425 	unsigned int p1_period_size;
426 	unsigned int p2_period_size;
427 	unsigned int c_period_size;
428 	struct snd_rawmidi *rmidi;
429 	struct snd_rawmidi_substream *midi_input;
430 	struct snd_rawmidi_substream *midi_output;
431 
432 	unsigned int spdif;
433 	unsigned int spdif_default;
434 	unsigned int spdif_stream;
435 
436 #ifdef CHIP1370
437 	struct snd_dma_buffer dma_bug;
438 #endif
439 
440 #ifdef SUPPORT_JOYSTICK
441 	struct gameport *gameport;
442 #endif
443 };
444 
445 static irqreturn_t snd_audiopci_interrupt(int irq, void *dev_id);
446 
447 static struct pci_device_id snd_audiopci_ids[] = {
448 #ifdef CHIP1370
449 	{ 0x1274, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },	/* ES1370 */
450 #endif
451 #ifdef CHIP1371
452 	{ 0x1274, 0x1371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },	/* ES1371 */
453 	{ 0x1274, 0x5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },	/* ES1373 - CT5880 */
454 	{ 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },	/* Ectiva EV1938 */
455 #endif
456 	{ 0, }
457 };
458 
459 MODULE_DEVICE_TABLE(pci, snd_audiopci_ids);
460 
461 /*
462  *  constants
463  */
464 
465 #define POLL_COUNT	0xa000
466 
467 #ifdef CHIP1370
468 static unsigned int snd_es1370_fixed_rates[] =
469 	{5512, 11025, 22050, 44100};
470 static struct snd_pcm_hw_constraint_list snd_es1370_hw_constraints_rates = {
471 	.count = 4,
472 	.list = snd_es1370_fixed_rates,
473 	.mask = 0,
474 };
475 static struct snd_ratnum es1370_clock = {
476 	.num = ES_1370_SRCLOCK,
477 	.den_min = 29,
478 	.den_max = 353,
479 	.den_step = 1,
480 };
481 static struct snd_pcm_hw_constraint_ratnums snd_es1370_hw_constraints_clock = {
482 	.nrats = 1,
483 	.rats = &es1370_clock,
484 };
485 #else
486 static struct snd_ratden es1371_dac_clock = {
487 	.num_min = 3000 * (1 << 15),
488 	.num_max = 48000 * (1 << 15),
489 	.num_step = 3000,
490 	.den = 1 << 15,
491 };
492 static struct snd_pcm_hw_constraint_ratdens snd_es1371_hw_constraints_dac_clock = {
493 	.nrats = 1,
494 	.rats = &es1371_dac_clock,
495 };
496 static struct snd_ratnum es1371_adc_clock = {
497 	.num = 48000 << 15,
498 	.den_min = 32768,
499 	.den_max = 393216,
500 	.den_step = 1,
501 };
502 static struct snd_pcm_hw_constraint_ratnums snd_es1371_hw_constraints_adc_clock = {
503 	.nrats = 1,
504 	.rats = &es1371_adc_clock,
505 };
506 #endif
507 static const unsigned int snd_ensoniq_sample_shift[] =
508 	{0, 1, 1, 2};
509 
510 /*
511  *  common I/O routines
512  */
513 
514 #ifdef CHIP1371
515 
516 static unsigned int snd_es1371_wait_src_ready(struct ensoniq * ensoniq)
517 {
518 	unsigned int t, r = 0;
519 
520 	for (t = 0; t < POLL_COUNT; t++) {
521 		r = inl(ES_REG(ensoniq, 1371_SMPRATE));
522 		if ((r & ES_1371_SRC_RAM_BUSY) == 0)
523 			return r;
524 		cond_resched();
525 	}
526 	snd_printk(KERN_ERR "wait source ready timeout 0x%lx [0x%x]\n",
527 		   ES_REG(ensoniq, 1371_SMPRATE), r);
528 	return 0;
529 }
530 
531 static unsigned int snd_es1371_src_read(struct ensoniq * ensoniq, unsigned short reg)
532 {
533 	unsigned int temp, i, orig, r;
534 
535 	/* wait for ready */
536 	temp = orig = snd_es1371_wait_src_ready(ensoniq);
537 
538 	/* expose the SRC state bits */
539 	r = temp & (ES_1371_SRC_DISABLE | ES_1371_DIS_P1 |
540 		    ES_1371_DIS_P2 | ES_1371_DIS_R1);
541 	r |= ES_1371_SRC_RAM_ADDRO(reg) | 0x10000;
542 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
543 
544 	/* now, wait for busy and the correct time to read */
545 	temp = snd_es1371_wait_src_ready(ensoniq);
546 
547 	if ((temp & 0x00870000) != 0x00010000) {
548 		/* wait for the right state */
549 		for (i = 0; i < POLL_COUNT; i++) {
550 			temp = inl(ES_REG(ensoniq, 1371_SMPRATE));
551 			if ((temp & 0x00870000) == 0x00010000)
552 				break;
553 		}
554 	}
555 
556 	/* hide the state bits */
557 	r = orig & (ES_1371_SRC_DISABLE | ES_1371_DIS_P1 |
558 		   ES_1371_DIS_P2 | ES_1371_DIS_R1);
559 	r |= ES_1371_SRC_RAM_ADDRO(reg);
560 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
561 
562 	return temp;
563 }
564 
565 static void snd_es1371_src_write(struct ensoniq * ensoniq,
566 				 unsigned short reg, unsigned short data)
567 {
568 	unsigned int r;
569 
570 	r = snd_es1371_wait_src_ready(ensoniq) &
571 	    (ES_1371_SRC_DISABLE | ES_1371_DIS_P1 |
572 	     ES_1371_DIS_P2 | ES_1371_DIS_R1);
573 	r |= ES_1371_SRC_RAM_ADDRO(reg) | ES_1371_SRC_RAM_DATAO(data);
574 	outl(r | ES_1371_SRC_RAM_WE, ES_REG(ensoniq, 1371_SMPRATE));
575 }
576 
577 #endif /* CHIP1371 */
578 
579 #ifdef CHIP1370
580 
581 static void snd_es1370_codec_write(struct snd_ak4531 *ak4531,
582 				   unsigned short reg, unsigned short val)
583 {
584 	struct ensoniq *ensoniq = ak4531->private_data;
585 	unsigned long end_time = jiffies + HZ / 10;
586 
587 #if 0
588 	printk("CODEC WRITE: reg = 0x%x, val = 0x%x (0x%x), creg = 0x%x\n",
589 	       reg, val, ES_1370_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1370_CODEC));
590 #endif
591 	do {
592 		if (!(inl(ES_REG(ensoniq, STATUS)) & ES_1370_CSTAT)) {
593 			outw(ES_1370_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1370_CODEC));
594 			return;
595 		}
596 		schedule_timeout_uninterruptible(1);
597 	} while (time_after(end_time, jiffies));
598 	snd_printk(KERN_ERR "codec write timeout, status = 0x%x\n",
599 		   inl(ES_REG(ensoniq, STATUS)));
600 }
601 
602 #endif /* CHIP1370 */
603 
604 #ifdef CHIP1371
605 
606 static void snd_es1371_codec_write(struct snd_ac97 *ac97,
607 				   unsigned short reg, unsigned short val)
608 {
609 	struct ensoniq *ensoniq = ac97->private_data;
610 	unsigned int t, x;
611 
612 	mutex_lock(&ensoniq->src_mutex);
613 	for (t = 0; t < POLL_COUNT; t++) {
614 		if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP)) {
615 			/* save the current state for latter */
616 			x = snd_es1371_wait_src_ready(ensoniq);
617 			outl((x & (ES_1371_SRC_DISABLE | ES_1371_DIS_P1 |
618 			           ES_1371_DIS_P2 | ES_1371_DIS_R1)) | 0x00010000,
619 			     ES_REG(ensoniq, 1371_SMPRATE));
620 			/* wait for not busy (state 0) first to avoid
621 			   transition states */
622 			for (t = 0; t < POLL_COUNT; t++) {
623 				if ((inl(ES_REG(ensoniq, 1371_SMPRATE)) & 0x00870000) ==
624 				    0x00000000)
625 					break;
626 			}
627 			/* wait for a SAFE time to write addr/data and then do it, dammit */
628 			for (t = 0; t < POLL_COUNT; t++) {
629 				if ((inl(ES_REG(ensoniq, 1371_SMPRATE)) & 0x00870000) ==
630 				    0x00010000)
631 					break;
632 			}
633 			outl(ES_1371_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1371_CODEC));
634 			/* restore SRC reg */
635 			snd_es1371_wait_src_ready(ensoniq);
636 			outl(x, ES_REG(ensoniq, 1371_SMPRATE));
637 			mutex_unlock(&ensoniq->src_mutex);
638 			return;
639 		}
640 	}
641 	mutex_unlock(&ensoniq->src_mutex);
642 	snd_printk(KERN_ERR "codec write timeout at 0x%lx [0x%x]\n",
643 		   ES_REG(ensoniq, 1371_CODEC), inl(ES_REG(ensoniq, 1371_CODEC)));
644 }
645 
646 static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
647 					    unsigned short reg)
648 {
649 	struct ensoniq *ensoniq = ac97->private_data;
650 	unsigned int t, x, fail = 0;
651 
652       __again:
653 	mutex_lock(&ensoniq->src_mutex);
654 	for (t = 0; t < POLL_COUNT; t++) {
655 		if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP)) {
656 			/* save the current state for latter */
657 			x = snd_es1371_wait_src_ready(ensoniq);
658 			outl((x & (ES_1371_SRC_DISABLE | ES_1371_DIS_P1 |
659 			           ES_1371_DIS_P2 | ES_1371_DIS_R1)) | 0x00010000,
660 			     ES_REG(ensoniq, 1371_SMPRATE));
661 			/* wait for not busy (state 0) first to avoid
662 			   transition states */
663 			for (t = 0; t < POLL_COUNT; t++) {
664 				if ((inl(ES_REG(ensoniq, 1371_SMPRATE)) & 0x00870000) ==
665 				    0x00000000)
666 					break;
667 			}
668 			/* wait for a SAFE time to write addr/data and then do it, dammit */
669 			for (t = 0; t < POLL_COUNT; t++) {
670 				if ((inl(ES_REG(ensoniq, 1371_SMPRATE)) & 0x00870000) ==
671 				    0x00010000)
672 					break;
673 			}
674 			outl(ES_1371_CODEC_READS(reg), ES_REG(ensoniq, 1371_CODEC));
675 			/* restore SRC reg */
676 			snd_es1371_wait_src_ready(ensoniq);
677 			outl(x, ES_REG(ensoniq, 1371_SMPRATE));
678 			/* wait for WIP again */
679 			for (t = 0; t < POLL_COUNT; t++) {
680 				if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP))
681 					break;
682 			}
683 			/* now wait for the stinkin' data (RDY) */
684 			for (t = 0; t < POLL_COUNT; t++) {
685 				if ((x = inl(ES_REG(ensoniq, 1371_CODEC))) & ES_1371_CODEC_RDY) {
686 					mutex_unlock(&ensoniq->src_mutex);
687 					return ES_1371_CODEC_READ(x);
688 				}
689 			}
690 			mutex_unlock(&ensoniq->src_mutex);
691 			if (++fail > 10) {
692 				snd_printk(KERN_ERR "codec read timeout (final) "
693 					   "at 0x%lx, reg = 0x%x [0x%x]\n",
694 					   ES_REG(ensoniq, 1371_CODEC), reg,
695 					   inl(ES_REG(ensoniq, 1371_CODEC)));
696 				return 0;
697 			}
698 			goto __again;
699 		}
700 	}
701 	mutex_unlock(&ensoniq->src_mutex);
702 	snd_printk(KERN_ERR "es1371: codec read timeout at 0x%lx [0x%x]\n",
703 		   ES_REG(ensoniq, 1371_CODEC), inl(ES_REG(ensoniq, 1371_CODEC)));
704 	return 0;
705 }
706 
707 static void snd_es1371_codec_wait(struct snd_ac97 *ac97)
708 {
709 	msleep(750);
710 	snd_es1371_codec_read(ac97, AC97_RESET);
711 	snd_es1371_codec_read(ac97, AC97_VENDOR_ID1);
712 	snd_es1371_codec_read(ac97, AC97_VENDOR_ID2);
713 	msleep(50);
714 }
715 
716 static void snd_es1371_adc_rate(struct ensoniq * ensoniq, unsigned int rate)
717 {
718 	unsigned int n, truncm, freq, result;
719 
720 	mutex_lock(&ensoniq->src_mutex);
721 	n = rate / 3000;
722 	if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9)))
723 		n--;
724 	truncm = (21 * n - 1) | 1;
725 	freq = ((48000UL << 15) / rate) * n;
726 	result = (48000UL << 15) / (freq / n);
727 	if (rate >= 24000) {
728 		if (truncm > 239)
729 			truncm = 239;
730 		snd_es1371_src_write(ensoniq, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
731 				(((239 - truncm) >> 1) << 9) | (n << 4));
732 	} else {
733 		if (truncm > 119)
734 			truncm = 119;
735 		snd_es1371_src_write(ensoniq, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
736 				0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4));
737 	}
738 	snd_es1371_src_write(ensoniq, ES_SMPREG_ADC + ES_SMPREG_INT_REGS,
739 			     (snd_es1371_src_read(ensoniq, ES_SMPREG_ADC +
740 						  ES_SMPREG_INT_REGS) & 0x00ff) |
741 			     ((freq >> 5) & 0xfc00));
742 	snd_es1371_src_write(ensoniq, ES_SMPREG_ADC + ES_SMPREG_VFREQ_FRAC, freq & 0x7fff);
743 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_ADC, n << 8);
744 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_ADC + 1, n << 8);
745 	mutex_unlock(&ensoniq->src_mutex);
746 }
747 
748 static void snd_es1371_dac1_rate(struct ensoniq * ensoniq, unsigned int rate)
749 {
750 	unsigned int freq, r;
751 
752 	mutex_lock(&ensoniq->src_mutex);
753 	freq = ((rate << 15) + 1500) / 3000;
754 	r = (snd_es1371_wait_src_ready(ensoniq) & (ES_1371_SRC_DISABLE |
755 						   ES_1371_DIS_P2 | ES_1371_DIS_R1)) |
756 		ES_1371_DIS_P1;
757 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
758 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC1 + ES_SMPREG_INT_REGS,
759 			     (snd_es1371_src_read(ensoniq, ES_SMPREG_DAC1 +
760 						  ES_SMPREG_INT_REGS) & 0x00ff) |
761 			     ((freq >> 5) & 0xfc00));
762 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC1 + ES_SMPREG_VFREQ_FRAC, freq & 0x7fff);
763 	r = (snd_es1371_wait_src_ready(ensoniq) & (ES_1371_SRC_DISABLE |
764 						   ES_1371_DIS_P2 | ES_1371_DIS_R1));
765 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
766 	mutex_unlock(&ensoniq->src_mutex);
767 }
768 
769 static void snd_es1371_dac2_rate(struct ensoniq * ensoniq, unsigned int rate)
770 {
771 	unsigned int freq, r;
772 
773 	mutex_lock(&ensoniq->src_mutex);
774 	freq = ((rate << 15) + 1500) / 3000;
775 	r = (snd_es1371_wait_src_ready(ensoniq) & (ES_1371_SRC_DISABLE |
776 						   ES_1371_DIS_P1 | ES_1371_DIS_R1)) |
777 		ES_1371_DIS_P2;
778 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
779 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC2 + ES_SMPREG_INT_REGS,
780 			     (snd_es1371_src_read(ensoniq, ES_SMPREG_DAC2 +
781 						  ES_SMPREG_INT_REGS) & 0x00ff) |
782 			     ((freq >> 5) & 0xfc00));
783 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC2 + ES_SMPREG_VFREQ_FRAC,
784 			     freq & 0x7fff);
785 	r = (snd_es1371_wait_src_ready(ensoniq) & (ES_1371_SRC_DISABLE |
786 						   ES_1371_DIS_P1 | ES_1371_DIS_R1));
787 	outl(r, ES_REG(ensoniq, 1371_SMPRATE));
788 	mutex_unlock(&ensoniq->src_mutex);
789 }
790 
791 #endif /* CHIP1371 */
792 
793 static int snd_ensoniq_trigger(struct snd_pcm_substream *substream, int cmd)
794 {
795 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
796 	switch (cmd) {
797 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
798 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
799 	{
800 		unsigned int what = 0;
801 		struct list_head *pos;
802 		struct snd_pcm_substream *s;
803 		snd_pcm_group_for_each(pos, substream) {
804 			s = snd_pcm_group_substream_entry(pos);
805 			if (s == ensoniq->playback1_substream) {
806 				what |= ES_P1_PAUSE;
807 				snd_pcm_trigger_done(s, substream);
808 			} else if (s == ensoniq->playback2_substream) {
809 				what |= ES_P2_PAUSE;
810 				snd_pcm_trigger_done(s, substream);
811 			} else if (s == ensoniq->capture_substream)
812 				return -EINVAL;
813 		}
814 		spin_lock(&ensoniq->reg_lock);
815 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
816 			ensoniq->sctrl |= what;
817 		else
818 			ensoniq->sctrl &= ~what;
819 		outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
820 		spin_unlock(&ensoniq->reg_lock);
821 		break;
822 	}
823 	case SNDRV_PCM_TRIGGER_START:
824 	case SNDRV_PCM_TRIGGER_STOP:
825 	{
826 		unsigned int what = 0;
827 		struct list_head *pos;
828 		struct snd_pcm_substream *s;
829 		snd_pcm_group_for_each(pos, substream) {
830 			s = snd_pcm_group_substream_entry(pos);
831 			if (s == ensoniq->playback1_substream) {
832 				what |= ES_DAC1_EN;
833 				snd_pcm_trigger_done(s, substream);
834 			} else if (s == ensoniq->playback2_substream) {
835 				what |= ES_DAC2_EN;
836 				snd_pcm_trigger_done(s, substream);
837 			} else if (s == ensoniq->capture_substream) {
838 				what |= ES_ADC_EN;
839 				snd_pcm_trigger_done(s, substream);
840 			}
841 		}
842 		spin_lock(&ensoniq->reg_lock);
843 		if (cmd == SNDRV_PCM_TRIGGER_START)
844 			ensoniq->ctrl |= what;
845 		else
846 			ensoniq->ctrl &= ~what;
847 		outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
848 		spin_unlock(&ensoniq->reg_lock);
849 		break;
850 	}
851 	default:
852 		return -EINVAL;
853 	}
854 	return 0;
855 }
856 
857 /*
858  *  PCM part
859  */
860 
861 static int snd_ensoniq_hw_params(struct snd_pcm_substream *substream,
862 				 struct snd_pcm_hw_params *hw_params)
863 {
864 	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
865 }
866 
867 static int snd_ensoniq_hw_free(struct snd_pcm_substream *substream)
868 {
869 	return snd_pcm_lib_free_pages(substream);
870 }
871 
872 static int snd_ensoniq_playback1_prepare(struct snd_pcm_substream *substream)
873 {
874 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
875 	struct snd_pcm_runtime *runtime = substream->runtime;
876 	unsigned int mode = 0;
877 
878 	ensoniq->p1_dma_size = snd_pcm_lib_buffer_bytes(substream);
879 	ensoniq->p1_period_size = snd_pcm_lib_period_bytes(substream);
880 	if (snd_pcm_format_width(runtime->format) == 16)
881 		mode |= 0x02;
882 	if (runtime->channels > 1)
883 		mode |= 0x01;
884 	spin_lock_irq(&ensoniq->reg_lock);
885 	ensoniq->ctrl &= ~ES_DAC1_EN;
886 #ifdef CHIP1371
887 	/* 48k doesn't need SRC (it breaks AC3-passthru) */
888 	if (runtime->rate == 48000)
889 		ensoniq->ctrl |= ES_1373_BYPASS_P1;
890 	else
891 		ensoniq->ctrl &= ~ES_1373_BYPASS_P1;
892 #endif
893 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
894 	outl(ES_MEM_PAGEO(ES_PAGE_DAC), ES_REG(ensoniq, MEM_PAGE));
895 	outl(runtime->dma_addr, ES_REG(ensoniq, DAC1_FRAME));
896 	outl((ensoniq->p1_dma_size >> 2) - 1, ES_REG(ensoniq, DAC1_SIZE));
897 	ensoniq->sctrl &= ~(ES_P1_LOOP_SEL | ES_P1_PAUSE | ES_P1_SCT_RLD | ES_P1_MODEM);
898 	ensoniq->sctrl |= ES_P1_INT_EN | ES_P1_MODEO(mode);
899 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
900 	outl((ensoniq->p1_period_size >> snd_ensoniq_sample_shift[mode]) - 1,
901 	     ES_REG(ensoniq, DAC1_COUNT));
902 #ifdef CHIP1370
903 	ensoniq->ctrl &= ~ES_1370_WTSRSELM;
904 	switch (runtime->rate) {
905 	case 5512: ensoniq->ctrl |= ES_1370_WTSRSEL(0); break;
906 	case 11025: ensoniq->ctrl |= ES_1370_WTSRSEL(1); break;
907 	case 22050: ensoniq->ctrl |= ES_1370_WTSRSEL(2); break;
908 	case 44100: ensoniq->ctrl |= ES_1370_WTSRSEL(3); break;
909 	default: snd_BUG();
910 	}
911 #endif
912 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
913 	spin_unlock_irq(&ensoniq->reg_lock);
914 #ifndef CHIP1370
915 	snd_es1371_dac1_rate(ensoniq, runtime->rate);
916 #endif
917 	return 0;
918 }
919 
920 static int snd_ensoniq_playback2_prepare(struct snd_pcm_substream *substream)
921 {
922 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
923 	struct snd_pcm_runtime *runtime = substream->runtime;
924 	unsigned int mode = 0;
925 
926 	ensoniq->p2_dma_size = snd_pcm_lib_buffer_bytes(substream);
927 	ensoniq->p2_period_size = snd_pcm_lib_period_bytes(substream);
928 	if (snd_pcm_format_width(runtime->format) == 16)
929 		mode |= 0x02;
930 	if (runtime->channels > 1)
931 		mode |= 0x01;
932 	spin_lock_irq(&ensoniq->reg_lock);
933 	ensoniq->ctrl &= ~ES_DAC2_EN;
934 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
935 	outl(ES_MEM_PAGEO(ES_PAGE_DAC), ES_REG(ensoniq, MEM_PAGE));
936 	outl(runtime->dma_addr, ES_REG(ensoniq, DAC2_FRAME));
937 	outl((ensoniq->p2_dma_size >> 2) - 1, ES_REG(ensoniq, DAC2_SIZE));
938 	ensoniq->sctrl &= ~(ES_P2_LOOP_SEL | ES_P2_PAUSE | ES_P2_DAC_SEN |
939 			    ES_P2_END_INCM | ES_P2_ST_INCM | ES_P2_MODEM);
940 	ensoniq->sctrl |= ES_P2_INT_EN | ES_P2_MODEO(mode) |
941 			  ES_P2_END_INCO(mode & 2 ? 2 : 1) | ES_P2_ST_INCO(0);
942 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
943 	outl((ensoniq->p2_period_size >> snd_ensoniq_sample_shift[mode]) - 1,
944 	     ES_REG(ensoniq, DAC2_COUNT));
945 #ifdef CHIP1370
946 	if (!(ensoniq->u.es1370.pclkdiv_lock & ES_MODE_CAPTURE)) {
947 		ensoniq->ctrl &= ~ES_1370_PCLKDIVM;
948 		ensoniq->ctrl |= ES_1370_PCLKDIVO(ES_1370_SRTODIV(runtime->rate));
949 		ensoniq->u.es1370.pclkdiv_lock |= ES_MODE_PLAY2;
950 	}
951 #endif
952 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
953 	spin_unlock_irq(&ensoniq->reg_lock);
954 #ifndef CHIP1370
955 	snd_es1371_dac2_rate(ensoniq, runtime->rate);
956 #endif
957 	return 0;
958 }
959 
960 static int snd_ensoniq_capture_prepare(struct snd_pcm_substream *substream)
961 {
962 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
963 	struct snd_pcm_runtime *runtime = substream->runtime;
964 	unsigned int mode = 0;
965 
966 	ensoniq->c_dma_size = snd_pcm_lib_buffer_bytes(substream);
967 	ensoniq->c_period_size = snd_pcm_lib_period_bytes(substream);
968 	if (snd_pcm_format_width(runtime->format) == 16)
969 		mode |= 0x02;
970 	if (runtime->channels > 1)
971 		mode |= 0x01;
972 	spin_lock_irq(&ensoniq->reg_lock);
973 	ensoniq->ctrl &= ~ES_ADC_EN;
974 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
975 	outl(ES_MEM_PAGEO(ES_PAGE_ADC), ES_REG(ensoniq, MEM_PAGE));
976 	outl(runtime->dma_addr, ES_REG(ensoniq, ADC_FRAME));
977 	outl((ensoniq->c_dma_size >> 2) - 1, ES_REG(ensoniq, ADC_SIZE));
978 	ensoniq->sctrl &= ~(ES_R1_LOOP_SEL | ES_R1_MODEM);
979 	ensoniq->sctrl |= ES_R1_INT_EN | ES_R1_MODEO(mode);
980 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
981 	outl((ensoniq->c_period_size >> snd_ensoniq_sample_shift[mode]) - 1,
982 	     ES_REG(ensoniq, ADC_COUNT));
983 #ifdef CHIP1370
984 	if (!(ensoniq->u.es1370.pclkdiv_lock & ES_MODE_PLAY2)) {
985 		ensoniq->ctrl &= ~ES_1370_PCLKDIVM;
986 		ensoniq->ctrl |= ES_1370_PCLKDIVO(ES_1370_SRTODIV(runtime->rate));
987 		ensoniq->u.es1370.pclkdiv_lock |= ES_MODE_CAPTURE;
988 	}
989 #endif
990 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
991 	spin_unlock_irq(&ensoniq->reg_lock);
992 #ifndef CHIP1370
993 	snd_es1371_adc_rate(ensoniq, runtime->rate);
994 #endif
995 	return 0;
996 }
997 
998 static snd_pcm_uframes_t snd_ensoniq_playback1_pointer(struct snd_pcm_substream *substream)
999 {
1000 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1001 	size_t ptr;
1002 
1003 	spin_lock(&ensoniq->reg_lock);
1004 	if (inl(ES_REG(ensoniq, CONTROL)) & ES_DAC1_EN) {
1005 		outl(ES_MEM_PAGEO(ES_PAGE_DAC), ES_REG(ensoniq, MEM_PAGE));
1006 		ptr = ES_REG_FCURR_COUNTI(inl(ES_REG(ensoniq, DAC1_SIZE)));
1007 		ptr = bytes_to_frames(substream->runtime, ptr);
1008 	} else {
1009 		ptr = 0;
1010 	}
1011 	spin_unlock(&ensoniq->reg_lock);
1012 	return ptr;
1013 }
1014 
1015 static snd_pcm_uframes_t snd_ensoniq_playback2_pointer(struct snd_pcm_substream *substream)
1016 {
1017 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1018 	size_t ptr;
1019 
1020 	spin_lock(&ensoniq->reg_lock);
1021 	if (inl(ES_REG(ensoniq, CONTROL)) & ES_DAC2_EN) {
1022 		outl(ES_MEM_PAGEO(ES_PAGE_DAC), ES_REG(ensoniq, MEM_PAGE));
1023 		ptr = ES_REG_FCURR_COUNTI(inl(ES_REG(ensoniq, DAC2_SIZE)));
1024 		ptr = bytes_to_frames(substream->runtime, ptr);
1025 	} else {
1026 		ptr = 0;
1027 	}
1028 	spin_unlock(&ensoniq->reg_lock);
1029 	return ptr;
1030 }
1031 
1032 static snd_pcm_uframes_t snd_ensoniq_capture_pointer(struct snd_pcm_substream *substream)
1033 {
1034 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1035 	size_t ptr;
1036 
1037 	spin_lock(&ensoniq->reg_lock);
1038 	if (inl(ES_REG(ensoniq, CONTROL)) & ES_ADC_EN) {
1039 		outl(ES_MEM_PAGEO(ES_PAGE_ADC), ES_REG(ensoniq, MEM_PAGE));
1040 		ptr = ES_REG_FCURR_COUNTI(inl(ES_REG(ensoniq, ADC_SIZE)));
1041 		ptr = bytes_to_frames(substream->runtime, ptr);
1042 	} else {
1043 		ptr = 0;
1044 	}
1045 	spin_unlock(&ensoniq->reg_lock);
1046 	return ptr;
1047 }
1048 
1049 static struct snd_pcm_hardware snd_ensoniq_playback1 =
1050 {
1051 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1052 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1053 				 SNDRV_PCM_INFO_MMAP_VALID |
1054 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_SYNC_START),
1055 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1056 	.rates =
1057 #ifndef CHIP1370
1058 				SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1059 #else
1060 				(SNDRV_PCM_RATE_KNOT | 	/* 5512Hz rate */
1061 				 SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_22050 |
1062 				 SNDRV_PCM_RATE_44100),
1063 #endif
1064 	.rate_min =		4000,
1065 	.rate_max =		48000,
1066 	.channels_min =		1,
1067 	.channels_max =		2,
1068 	.buffer_bytes_max =	(128*1024),
1069 	.period_bytes_min =	64,
1070 	.period_bytes_max =	(128*1024),
1071 	.periods_min =		1,
1072 	.periods_max =		1024,
1073 	.fifo_size =		0,
1074 };
1075 
1076 static struct snd_pcm_hardware snd_ensoniq_playback2 =
1077 {
1078 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1079 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1080 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE |
1081 				 SNDRV_PCM_INFO_SYNC_START),
1082 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1083 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1084 	.rate_min =		4000,
1085 	.rate_max =		48000,
1086 	.channels_min =		1,
1087 	.channels_max =		2,
1088 	.buffer_bytes_max =	(128*1024),
1089 	.period_bytes_min =	64,
1090 	.period_bytes_max =	(128*1024),
1091 	.periods_min =		1,
1092 	.periods_max =		1024,
1093 	.fifo_size =		0,
1094 };
1095 
1096 static struct snd_pcm_hardware snd_ensoniq_capture =
1097 {
1098 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1099 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1100 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
1101 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1102 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1103 	.rate_min =		4000,
1104 	.rate_max =		48000,
1105 	.channels_min =		1,
1106 	.channels_max =		2,
1107 	.buffer_bytes_max =	(128*1024),
1108 	.period_bytes_min =	64,
1109 	.period_bytes_max =	(128*1024),
1110 	.periods_min =		1,
1111 	.periods_max =		1024,
1112 	.fifo_size =		0,
1113 };
1114 
1115 static int snd_ensoniq_playback1_open(struct snd_pcm_substream *substream)
1116 {
1117 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1118 	struct snd_pcm_runtime *runtime = substream->runtime;
1119 
1120 	ensoniq->mode |= ES_MODE_PLAY1;
1121 	ensoniq->playback1_substream = substream;
1122 	runtime->hw = snd_ensoniq_playback1;
1123 	snd_pcm_set_sync(substream);
1124 	spin_lock_irq(&ensoniq->reg_lock);
1125 	if (ensoniq->spdif && ensoniq->playback2_substream == NULL)
1126 		ensoniq->spdif_stream = ensoniq->spdif_default;
1127 	spin_unlock_irq(&ensoniq->reg_lock);
1128 #ifdef CHIP1370
1129 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1130 				   &snd_es1370_hw_constraints_rates);
1131 #else
1132 	snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1133 				      &snd_es1371_hw_constraints_dac_clock);
1134 #endif
1135 	return 0;
1136 }
1137 
1138 static int snd_ensoniq_playback2_open(struct snd_pcm_substream *substream)
1139 {
1140 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1141 	struct snd_pcm_runtime *runtime = substream->runtime;
1142 
1143 	ensoniq->mode |= ES_MODE_PLAY2;
1144 	ensoniq->playback2_substream = substream;
1145 	runtime->hw = snd_ensoniq_playback2;
1146 	snd_pcm_set_sync(substream);
1147 	spin_lock_irq(&ensoniq->reg_lock);
1148 	if (ensoniq->spdif && ensoniq->playback1_substream == NULL)
1149 		ensoniq->spdif_stream = ensoniq->spdif_default;
1150 	spin_unlock_irq(&ensoniq->reg_lock);
1151 #ifdef CHIP1370
1152 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1153 				      &snd_es1370_hw_constraints_clock);
1154 #else
1155 	snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1156 				      &snd_es1371_hw_constraints_dac_clock);
1157 #endif
1158 	return 0;
1159 }
1160 
1161 static int snd_ensoniq_capture_open(struct snd_pcm_substream *substream)
1162 {
1163 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1164 	struct snd_pcm_runtime *runtime = substream->runtime;
1165 
1166 	ensoniq->mode |= ES_MODE_CAPTURE;
1167 	ensoniq->capture_substream = substream;
1168 	runtime->hw = snd_ensoniq_capture;
1169 	snd_pcm_set_sync(substream);
1170 #ifdef CHIP1370
1171 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1172 				      &snd_es1370_hw_constraints_clock);
1173 #else
1174 	snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1175 				      &snd_es1371_hw_constraints_adc_clock);
1176 #endif
1177 	return 0;
1178 }
1179 
1180 static int snd_ensoniq_playback1_close(struct snd_pcm_substream *substream)
1181 {
1182 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1183 
1184 	ensoniq->playback1_substream = NULL;
1185 	ensoniq->mode &= ~ES_MODE_PLAY1;
1186 	return 0;
1187 }
1188 
1189 static int snd_ensoniq_playback2_close(struct snd_pcm_substream *substream)
1190 {
1191 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1192 
1193 	ensoniq->playback2_substream = NULL;
1194 	spin_lock_irq(&ensoniq->reg_lock);
1195 #ifdef CHIP1370
1196 	ensoniq->u.es1370.pclkdiv_lock &= ~ES_MODE_PLAY2;
1197 #endif
1198 	ensoniq->mode &= ~ES_MODE_PLAY2;
1199 	spin_unlock_irq(&ensoniq->reg_lock);
1200 	return 0;
1201 }
1202 
1203 static int snd_ensoniq_capture_close(struct snd_pcm_substream *substream)
1204 {
1205 	struct ensoniq *ensoniq = snd_pcm_substream_chip(substream);
1206 
1207 	ensoniq->capture_substream = NULL;
1208 	spin_lock_irq(&ensoniq->reg_lock);
1209 #ifdef CHIP1370
1210 	ensoniq->u.es1370.pclkdiv_lock &= ~ES_MODE_CAPTURE;
1211 #endif
1212 	ensoniq->mode &= ~ES_MODE_CAPTURE;
1213 	spin_unlock_irq(&ensoniq->reg_lock);
1214 	return 0;
1215 }
1216 
1217 static struct snd_pcm_ops snd_ensoniq_playback1_ops = {
1218 	.open =		snd_ensoniq_playback1_open,
1219 	.close =	snd_ensoniq_playback1_close,
1220 	.ioctl =	snd_pcm_lib_ioctl,
1221 	.hw_params =	snd_ensoniq_hw_params,
1222 	.hw_free =	snd_ensoniq_hw_free,
1223 	.prepare =	snd_ensoniq_playback1_prepare,
1224 	.trigger =	snd_ensoniq_trigger,
1225 	.pointer =	snd_ensoniq_playback1_pointer,
1226 };
1227 
1228 static struct snd_pcm_ops snd_ensoniq_playback2_ops = {
1229 	.open =		snd_ensoniq_playback2_open,
1230 	.close =	snd_ensoniq_playback2_close,
1231 	.ioctl =	snd_pcm_lib_ioctl,
1232 	.hw_params =	snd_ensoniq_hw_params,
1233 	.hw_free =	snd_ensoniq_hw_free,
1234 	.prepare =	snd_ensoniq_playback2_prepare,
1235 	.trigger =	snd_ensoniq_trigger,
1236 	.pointer =	snd_ensoniq_playback2_pointer,
1237 };
1238 
1239 static struct snd_pcm_ops snd_ensoniq_capture_ops = {
1240 	.open =		snd_ensoniq_capture_open,
1241 	.close =	snd_ensoniq_capture_close,
1242 	.ioctl =	snd_pcm_lib_ioctl,
1243 	.hw_params =	snd_ensoniq_hw_params,
1244 	.hw_free =	snd_ensoniq_hw_free,
1245 	.prepare =	snd_ensoniq_capture_prepare,
1246 	.trigger =	snd_ensoniq_trigger,
1247 	.pointer =	snd_ensoniq_capture_pointer,
1248 };
1249 
1250 static int __devinit snd_ensoniq_pcm(struct ensoniq * ensoniq, int device,
1251 				     struct snd_pcm ** rpcm)
1252 {
1253 	struct snd_pcm *pcm;
1254 	int err;
1255 
1256 	if (rpcm)
1257 		*rpcm = NULL;
1258 #ifdef CHIP1370
1259 	err = snd_pcm_new(ensoniq->card, "ES1370/1", device, 1, 1, &pcm);
1260 #else
1261 	err = snd_pcm_new(ensoniq->card, "ES1371/1", device, 1, 1, &pcm);
1262 #endif
1263 	if (err < 0)
1264 		return err;
1265 
1266 #ifdef CHIP1370
1267 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ensoniq_playback2_ops);
1268 #else
1269 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ensoniq_playback1_ops);
1270 #endif
1271 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ensoniq_capture_ops);
1272 
1273 	pcm->private_data = ensoniq;
1274 	pcm->info_flags = 0;
1275 #ifdef CHIP1370
1276 	strcpy(pcm->name, "ES1370 DAC2/ADC");
1277 #else
1278 	strcpy(pcm->name, "ES1371 DAC2/ADC");
1279 #endif
1280 	ensoniq->pcm1 = pcm;
1281 
1282 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1283 					      snd_dma_pci_data(ensoniq->pci), 64*1024, 128*1024);
1284 
1285 	if (rpcm)
1286 		*rpcm = pcm;
1287 	return 0;
1288 }
1289 
1290 static int __devinit snd_ensoniq_pcm2(struct ensoniq * ensoniq, int device,
1291 				      struct snd_pcm ** rpcm)
1292 {
1293 	struct snd_pcm *pcm;
1294 	int err;
1295 
1296 	if (rpcm)
1297 		*rpcm = NULL;
1298 #ifdef CHIP1370
1299 	err = snd_pcm_new(ensoniq->card, "ES1370/2", device, 1, 0, &pcm);
1300 #else
1301 	err = snd_pcm_new(ensoniq->card, "ES1371/2", device, 1, 0, &pcm);
1302 #endif
1303 	if (err < 0)
1304 		return err;
1305 
1306 #ifdef CHIP1370
1307 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ensoniq_playback1_ops);
1308 #else
1309 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ensoniq_playback2_ops);
1310 #endif
1311 	pcm->private_data = ensoniq;
1312 	pcm->info_flags = 0;
1313 #ifdef CHIP1370
1314 	strcpy(pcm->name, "ES1370 DAC1");
1315 #else
1316 	strcpy(pcm->name, "ES1371 DAC1");
1317 #endif
1318 	ensoniq->pcm2 = pcm;
1319 
1320 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1321 					      snd_dma_pci_data(ensoniq->pci), 64*1024, 128*1024);
1322 
1323 	if (rpcm)
1324 		*rpcm = pcm;
1325 	return 0;
1326 }
1327 
1328 /*
1329  *  Mixer section
1330  */
1331 
1332 /*
1333  * ENS1371 mixer (including SPDIF interface)
1334  */
1335 #ifdef CHIP1371
1336 static int snd_ens1373_spdif_info(struct snd_kcontrol *kcontrol,
1337 				  struct snd_ctl_elem_info *uinfo)
1338 {
1339 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1340 	uinfo->count = 1;
1341 	return 0;
1342 }
1343 
1344 static int snd_ens1373_spdif_default_get(struct snd_kcontrol *kcontrol,
1345                                          struct snd_ctl_elem_value *ucontrol)
1346 {
1347 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1348 	spin_lock_irq(&ensoniq->reg_lock);
1349 	ucontrol->value.iec958.status[0] = (ensoniq->spdif_default >> 0) & 0xff;
1350 	ucontrol->value.iec958.status[1] = (ensoniq->spdif_default >> 8) & 0xff;
1351 	ucontrol->value.iec958.status[2] = (ensoniq->spdif_default >> 16) & 0xff;
1352 	ucontrol->value.iec958.status[3] = (ensoniq->spdif_default >> 24) & 0xff;
1353 	spin_unlock_irq(&ensoniq->reg_lock);
1354 	return 0;
1355 }
1356 
1357 static int snd_ens1373_spdif_default_put(struct snd_kcontrol *kcontrol,
1358                                          struct snd_ctl_elem_value *ucontrol)
1359 {
1360 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1361 	unsigned int val;
1362 	int change;
1363 
1364 	val = ((u32)ucontrol->value.iec958.status[0] << 0) |
1365 	      ((u32)ucontrol->value.iec958.status[1] << 8) |
1366 	      ((u32)ucontrol->value.iec958.status[2] << 16) |
1367 	      ((u32)ucontrol->value.iec958.status[3] << 24);
1368 	spin_lock_irq(&ensoniq->reg_lock);
1369 	change = ensoniq->spdif_default != val;
1370 	ensoniq->spdif_default = val;
1371 	if (change && ensoniq->playback1_substream == NULL &&
1372 	    ensoniq->playback2_substream == NULL)
1373 		outl(val, ES_REG(ensoniq, CHANNEL_STATUS));
1374 	spin_unlock_irq(&ensoniq->reg_lock);
1375 	return change;
1376 }
1377 
1378 static int snd_ens1373_spdif_mask_get(struct snd_kcontrol *kcontrol,
1379 				      struct snd_ctl_elem_value *ucontrol)
1380 {
1381 	ucontrol->value.iec958.status[0] = 0xff;
1382 	ucontrol->value.iec958.status[1] = 0xff;
1383 	ucontrol->value.iec958.status[2] = 0xff;
1384 	ucontrol->value.iec958.status[3] = 0xff;
1385 	return 0;
1386 }
1387 
1388 static int snd_ens1373_spdif_stream_get(struct snd_kcontrol *kcontrol,
1389 					struct snd_ctl_elem_value *ucontrol)
1390 {
1391 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1392 	spin_lock_irq(&ensoniq->reg_lock);
1393 	ucontrol->value.iec958.status[0] = (ensoniq->spdif_stream >> 0) & 0xff;
1394 	ucontrol->value.iec958.status[1] = (ensoniq->spdif_stream >> 8) & 0xff;
1395 	ucontrol->value.iec958.status[2] = (ensoniq->spdif_stream >> 16) & 0xff;
1396 	ucontrol->value.iec958.status[3] = (ensoniq->spdif_stream >> 24) & 0xff;
1397 	spin_unlock_irq(&ensoniq->reg_lock);
1398 	return 0;
1399 }
1400 
1401 static int snd_ens1373_spdif_stream_put(struct snd_kcontrol *kcontrol,
1402                                         struct snd_ctl_elem_value *ucontrol)
1403 {
1404 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1405 	unsigned int val;
1406 	int change;
1407 
1408 	val = ((u32)ucontrol->value.iec958.status[0] << 0) |
1409 	      ((u32)ucontrol->value.iec958.status[1] << 8) |
1410 	      ((u32)ucontrol->value.iec958.status[2] << 16) |
1411 	      ((u32)ucontrol->value.iec958.status[3] << 24);
1412 	spin_lock_irq(&ensoniq->reg_lock);
1413 	change = ensoniq->spdif_stream != val;
1414 	ensoniq->spdif_stream = val;
1415 	if (change && (ensoniq->playback1_substream != NULL ||
1416 		       ensoniq->playback2_substream != NULL))
1417 		outl(val, ES_REG(ensoniq, CHANNEL_STATUS));
1418 	spin_unlock_irq(&ensoniq->reg_lock);
1419 	return change;
1420 }
1421 
1422 #define ES1371_SPDIF(xname) \
1423 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_es1371_spdif_info, \
1424   .get = snd_es1371_spdif_get, .put = snd_es1371_spdif_put }
1425 
1426 static int snd_es1371_spdif_info(struct snd_kcontrol *kcontrol,
1427 				 struct snd_ctl_elem_info *uinfo)
1428 {
1429         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1430         uinfo->count = 1;
1431         uinfo->value.integer.min = 0;
1432         uinfo->value.integer.max = 1;
1433         return 0;
1434 }
1435 
1436 static int snd_es1371_spdif_get(struct snd_kcontrol *kcontrol,
1437 				struct snd_ctl_elem_value *ucontrol)
1438 {
1439 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1440 
1441 	spin_lock_irq(&ensoniq->reg_lock);
1442 	ucontrol->value.integer.value[0] = ensoniq->ctrl & ES_1373_SPDIF_THRU ? 1 : 0;
1443 	spin_unlock_irq(&ensoniq->reg_lock);
1444 	return 0;
1445 }
1446 
1447 static int snd_es1371_spdif_put(struct snd_kcontrol *kcontrol,
1448 				struct snd_ctl_elem_value *ucontrol)
1449 {
1450 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1451 	unsigned int nval1, nval2;
1452 	int change;
1453 
1454 	nval1 = ucontrol->value.integer.value[0] ? ES_1373_SPDIF_THRU : 0;
1455 	nval2 = ucontrol->value.integer.value[0] ? ES_1373_SPDIF_EN : 0;
1456 	spin_lock_irq(&ensoniq->reg_lock);
1457 	change = (ensoniq->ctrl & ES_1373_SPDIF_THRU) != nval1;
1458 	ensoniq->ctrl &= ~ES_1373_SPDIF_THRU;
1459 	ensoniq->ctrl |= nval1;
1460 	ensoniq->cssr &= ~ES_1373_SPDIF_EN;
1461 	ensoniq->cssr |= nval2;
1462 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
1463 	outl(ensoniq->cssr, ES_REG(ensoniq, STATUS));
1464 	spin_unlock_irq(&ensoniq->reg_lock);
1465 	return change;
1466 }
1467 
1468 
1469 /* spdif controls */
1470 static struct snd_kcontrol_new snd_es1371_mixer_spdif[] __devinitdata = {
1471 	ES1371_SPDIF(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH)),
1472 	{
1473 		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1474 		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1475 		.info =		snd_ens1373_spdif_info,
1476 		.get =		snd_ens1373_spdif_default_get,
1477 		.put =		snd_ens1373_spdif_default_put,
1478 	},
1479 	{
1480 		.access =	SNDRV_CTL_ELEM_ACCESS_READ,
1481 		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1482 		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1483 		.info =		snd_ens1373_spdif_info,
1484 		.get =		snd_ens1373_spdif_mask_get
1485 	},
1486 	{
1487 		.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1488 		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1489 		.info =		snd_ens1373_spdif_info,
1490 		.get =		snd_ens1373_spdif_stream_get,
1491 		.put =		snd_ens1373_spdif_stream_put
1492 	},
1493 };
1494 
1495 
1496 static int snd_es1373_rear_info(struct snd_kcontrol *kcontrol,
1497 				struct snd_ctl_elem_info *uinfo)
1498 {
1499         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1500         uinfo->count = 1;
1501         uinfo->value.integer.min = 0;
1502         uinfo->value.integer.max = 1;
1503         return 0;
1504 }
1505 
1506 static int snd_es1373_rear_get(struct snd_kcontrol *kcontrol,
1507 			       struct snd_ctl_elem_value *ucontrol)
1508 {
1509 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1510 	int val = 0;
1511 
1512 	spin_lock_irq(&ensoniq->reg_lock);
1513 	if ((ensoniq->cssr & (ES_1373_REAR_BIT27|ES_1373_REAR_BIT26|
1514 			      ES_1373_REAR_BIT24)) == ES_1373_REAR_BIT26)
1515 	    	val = 1;
1516 	ucontrol->value.integer.value[0] = val;
1517 	spin_unlock_irq(&ensoniq->reg_lock);
1518 	return 0;
1519 }
1520 
1521 static int snd_es1373_rear_put(struct snd_kcontrol *kcontrol,
1522 			       struct snd_ctl_elem_value *ucontrol)
1523 {
1524 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1525 	unsigned int nval1;
1526 	int change;
1527 
1528 	nval1 = ucontrol->value.integer.value[0] ?
1529 		ES_1373_REAR_BIT26 : (ES_1373_REAR_BIT27|ES_1373_REAR_BIT24);
1530 	spin_lock_irq(&ensoniq->reg_lock);
1531 	change = (ensoniq->cssr & (ES_1373_REAR_BIT27|
1532 				   ES_1373_REAR_BIT26|ES_1373_REAR_BIT24)) != nval1;
1533 	ensoniq->cssr &= ~(ES_1373_REAR_BIT27|ES_1373_REAR_BIT26|ES_1373_REAR_BIT24);
1534 	ensoniq->cssr |= nval1;
1535 	outl(ensoniq->cssr, ES_REG(ensoniq, STATUS));
1536 	spin_unlock_irq(&ensoniq->reg_lock);
1537 	return change;
1538 }
1539 
1540 static struct snd_kcontrol_new snd_ens1373_rear __devinitdata =
1541 {
1542 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
1543 	.name =		"AC97 2ch->4ch Copy Switch",
1544 	.info =		snd_es1373_rear_info,
1545 	.get =		snd_es1373_rear_get,
1546 	.put =		snd_es1373_rear_put,
1547 };
1548 
1549 static int snd_es1373_line_info(struct snd_kcontrol *kcontrol,
1550 				struct snd_ctl_elem_info *uinfo)
1551 {
1552 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1553 	uinfo->count = 1;
1554 	uinfo->value.integer.min = 0;
1555 	uinfo->value.integer.max = 1;
1556 	return 0;
1557 }
1558 
1559 static int snd_es1373_line_get(struct snd_kcontrol *kcontrol,
1560 			       struct snd_ctl_elem_value *ucontrol)
1561 {
1562 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1563 	int val = 0;
1564 
1565 	spin_lock_irq(&ensoniq->reg_lock);
1566 	if ((ensoniq->ctrl & ES_1371_GPIO_OUTM) >= 4)
1567 	    	val = 1;
1568 	ucontrol->value.integer.value[0] = val;
1569 	spin_unlock_irq(&ensoniq->reg_lock);
1570 	return 0;
1571 }
1572 
1573 static int snd_es1373_line_put(struct snd_kcontrol *kcontrol,
1574 			       struct snd_ctl_elem_value *ucontrol)
1575 {
1576 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1577 	int changed;
1578 	unsigned int ctrl;
1579 
1580 	spin_lock_irq(&ensoniq->reg_lock);
1581 	ctrl = ensoniq->ctrl;
1582 	if (ucontrol->value.integer.value[0])
1583 		ensoniq->ctrl |= ES_1371_GPIO_OUT(4);	/* switch line-in -> rear out */
1584 	else
1585 		ensoniq->ctrl &= ~ES_1371_GPIO_OUT(4);
1586 	changed = (ctrl != ensoniq->ctrl);
1587 	if (changed)
1588 		outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
1589 	spin_unlock_irq(&ensoniq->reg_lock);
1590 	return changed;
1591 }
1592 
1593 static struct snd_kcontrol_new snd_ens1373_line __devinitdata =
1594 {
1595 	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
1596 	.name =		"Line In->Rear Out Switch",
1597 	.info =		snd_es1373_line_info,
1598 	.get =		snd_es1373_line_get,
1599 	.put =		snd_es1373_line_put,
1600 };
1601 
1602 static void snd_ensoniq_mixer_free_ac97(struct snd_ac97 *ac97)
1603 {
1604 	struct ensoniq *ensoniq = ac97->private_data;
1605 	ensoniq->u.es1371.ac97 = NULL;
1606 }
1607 
1608 struct es1371_quirk {
1609 	unsigned short vid;		/* vendor ID */
1610 	unsigned short did;		/* device ID */
1611 	unsigned char rev;		/* revision */
1612 };
1613 
1614 static int __devinit es1371_quirk_lookup(struct ensoniq *ensoniq,
1615 					 struct es1371_quirk *list)
1616 {
1617 	while (list->vid != (unsigned short)PCI_ANY_ID) {
1618 		if (ensoniq->pci->vendor == list->vid &&
1619 		    ensoniq->pci->device == list->did &&
1620 		    ensoniq->rev == list->rev)
1621 			return 1;
1622 		list++;
1623 	}
1624 	return 0;
1625 }
1626 
1627 static struct es1371_quirk es1371_spdif_present[] __devinitdata = {
1628 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_C },
1629 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_D },
1630 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_E },
1631 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_ES1371, .rev = ES1371REV_CT5880_A },
1632 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_ES1371, .rev = ES1371REV_ES1373_8 },
1633 	{ .vid = PCI_ANY_ID, .did = PCI_ANY_ID }
1634 };
1635 
1636 static struct snd_pci_quirk ens1373_line_quirk[] __devinitdata = {
1637 	SND_PCI_QUIRK_ID(0x1274, 0x2000), /* GA-7DXR */
1638 	SND_PCI_QUIRK_ID(0x1458, 0xa000), /* GA-8IEXP */
1639 	{ } /* end */
1640 };
1641 
1642 static int __devinit snd_ensoniq_1371_mixer(struct ensoniq *ensoniq,
1643 					    int has_spdif, int has_line)
1644 {
1645 	struct snd_card *card = ensoniq->card;
1646 	struct snd_ac97_bus *pbus;
1647 	struct snd_ac97_template ac97;
1648 	int err;
1649 	static struct snd_ac97_bus_ops ops = {
1650 		.write = snd_es1371_codec_write,
1651 		.read = snd_es1371_codec_read,
1652 		.wait = snd_es1371_codec_wait,
1653 	};
1654 
1655 	if ((err = snd_ac97_bus(card, 0, &ops, NULL, &pbus)) < 0)
1656 		return err;
1657 
1658 	memset(&ac97, 0, sizeof(ac97));
1659 	ac97.private_data = ensoniq;
1660 	ac97.private_free = snd_ensoniq_mixer_free_ac97;
1661 	ac97.scaps = AC97_SCAP_AUDIO;
1662 	if ((err = snd_ac97_mixer(pbus, &ac97, &ensoniq->u.es1371.ac97)) < 0)
1663 		return err;
1664 	if (has_spdif > 0 ||
1665 	    (!has_spdif && es1371_quirk_lookup(ensoniq, es1371_spdif_present))) {
1666 		struct snd_kcontrol *kctl;
1667 		int i, index = 0;
1668 
1669 		ensoniq->spdif_default = ensoniq->spdif_stream =
1670 			SNDRV_PCM_DEFAULT_CON_SPDIF;
1671 		outl(ensoniq->spdif_default, ES_REG(ensoniq, CHANNEL_STATUS));
1672 
1673 		if (ensoniq->u.es1371.ac97->ext_id & AC97_EI_SPDIF)
1674 			index++;
1675 
1676 		for (i = 0; i < ARRAY_SIZE(snd_es1371_mixer_spdif); i++) {
1677 			kctl = snd_ctl_new1(&snd_es1371_mixer_spdif[i], ensoniq);
1678 			if (!kctl)
1679 				return -ENOMEM;
1680 			kctl->id.index = index;
1681 			err = snd_ctl_add(card, kctl);
1682 			if (err < 0)
1683 				return err;
1684 		}
1685 	}
1686 	if (ensoniq->u.es1371.ac97->ext_id & AC97_EI_SDAC) {
1687 		/* mirror rear to front speakers */
1688 		ensoniq->cssr &= ~(ES_1373_REAR_BIT27|ES_1373_REAR_BIT24);
1689 		ensoniq->cssr |= ES_1373_REAR_BIT26;
1690 		err = snd_ctl_add(card, snd_ctl_new1(&snd_ens1373_rear, ensoniq));
1691 		if (err < 0)
1692 			return err;
1693 	}
1694 	if (has_line > 0 ||
1695 	    snd_pci_quirk_lookup(ensoniq->pci, ens1373_line_quirk)) {
1696 		 err = snd_ctl_add(card, snd_ctl_new1(&snd_ens1373_line,
1697 						      ensoniq));
1698 		 if (err < 0)
1699 			 return err;
1700 	}
1701 
1702 	return 0;
1703 }
1704 
1705 #endif /* CHIP1371 */
1706 
1707 /* generic control callbacks for ens1370 */
1708 #ifdef CHIP1370
1709 #define ENSONIQ_CONTROL(xname, mask) \
1710 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, .name = xname, .info = snd_ensoniq_control_info, \
1711   .get = snd_ensoniq_control_get, .put = snd_ensoniq_control_put, \
1712   .private_value = mask }
1713 
1714 static int snd_ensoniq_control_info(struct snd_kcontrol *kcontrol,
1715 				    struct snd_ctl_elem_info *uinfo)
1716 {
1717         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1718         uinfo->count = 1;
1719         uinfo->value.integer.min = 0;
1720         uinfo->value.integer.max = 1;
1721         return 0;
1722 }
1723 
1724 static int snd_ensoniq_control_get(struct snd_kcontrol *kcontrol,
1725 				   struct snd_ctl_elem_value *ucontrol)
1726 {
1727 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1728 	int mask = kcontrol->private_value;
1729 
1730 	spin_lock_irq(&ensoniq->reg_lock);
1731 	ucontrol->value.integer.value[0] = ensoniq->ctrl & mask ? 1 : 0;
1732 	spin_unlock_irq(&ensoniq->reg_lock);
1733 	return 0;
1734 }
1735 
1736 static int snd_ensoniq_control_put(struct snd_kcontrol *kcontrol,
1737 				   struct snd_ctl_elem_value *ucontrol)
1738 {
1739 	struct ensoniq *ensoniq = snd_kcontrol_chip(kcontrol);
1740 	int mask = kcontrol->private_value;
1741 	unsigned int nval;
1742 	int change;
1743 
1744 	nval = ucontrol->value.integer.value[0] ? mask : 0;
1745 	spin_lock_irq(&ensoniq->reg_lock);
1746 	change = (ensoniq->ctrl & mask) != nval;
1747 	ensoniq->ctrl &= ~mask;
1748 	ensoniq->ctrl |= nval;
1749 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
1750 	spin_unlock_irq(&ensoniq->reg_lock);
1751 	return change;
1752 }
1753 
1754 /*
1755  * ENS1370 mixer
1756  */
1757 
1758 static struct snd_kcontrol_new snd_es1370_controls[2] __devinitdata = {
1759 ENSONIQ_CONTROL("PCM 0 Output also on Line-In Jack", ES_1370_XCTL0),
1760 ENSONIQ_CONTROL("Mic +5V bias", ES_1370_XCTL1)
1761 };
1762 
1763 #define ES1370_CONTROLS ARRAY_SIZE(snd_es1370_controls)
1764 
1765 static void snd_ensoniq_mixer_free_ak4531(struct snd_ak4531 *ak4531)
1766 {
1767 	struct ensoniq *ensoniq = ak4531->private_data;
1768 	ensoniq->u.es1370.ak4531 = NULL;
1769 }
1770 
1771 static int __devinit snd_ensoniq_1370_mixer(struct ensoniq * ensoniq)
1772 {
1773 	struct snd_card *card = ensoniq->card;
1774 	struct snd_ak4531 ak4531;
1775 	unsigned int idx;
1776 	int err;
1777 
1778 	/* try reset AK4531 */
1779 	outw(ES_1370_CODEC_WRITE(AK4531_RESET, 0x02), ES_REG(ensoniq, 1370_CODEC));
1780 	inw(ES_REG(ensoniq, 1370_CODEC));
1781 	udelay(100);
1782 	outw(ES_1370_CODEC_WRITE(AK4531_RESET, 0x03), ES_REG(ensoniq, 1370_CODEC));
1783 	inw(ES_REG(ensoniq, 1370_CODEC));
1784 	udelay(100);
1785 
1786 	memset(&ak4531, 0, sizeof(ak4531));
1787 	ak4531.write = snd_es1370_codec_write;
1788 	ak4531.private_data = ensoniq;
1789 	ak4531.private_free = snd_ensoniq_mixer_free_ak4531;
1790 	if ((err = snd_ak4531_mixer(card, &ak4531, &ensoniq->u.es1370.ak4531)) < 0)
1791 		return err;
1792 	for (idx = 0; idx < ES1370_CONTROLS; idx++) {
1793 		err = snd_ctl_add(card, snd_ctl_new1(&snd_es1370_controls[idx], ensoniq));
1794 		if (err < 0)
1795 			return err;
1796 	}
1797 	return 0;
1798 }
1799 
1800 #endif /* CHIP1370 */
1801 
1802 #ifdef SUPPORT_JOYSTICK
1803 
1804 #ifdef CHIP1371
1805 static int __devinit snd_ensoniq_get_joystick_port(int dev)
1806 {
1807 	switch (joystick_port[dev]) {
1808 	case 0: /* disabled */
1809 	case 1: /* auto-detect */
1810 	case 0x200:
1811 	case 0x208:
1812 	case 0x210:
1813 	case 0x218:
1814 		return joystick_port[dev];
1815 
1816 	default:
1817 		printk(KERN_ERR "ens1371: invalid joystick port %#x", joystick_port[dev]);
1818 		return 0;
1819 	}
1820 }
1821 #else
1822 static inline int snd_ensoniq_get_joystick_port(int dev)
1823 {
1824 	return joystick[dev] ? 0x200 : 0;
1825 }
1826 #endif
1827 
1828 static int __devinit snd_ensoniq_create_gameport(struct ensoniq *ensoniq, int dev)
1829 {
1830 	struct gameport *gp;
1831 	int io_port;
1832 
1833 	io_port = snd_ensoniq_get_joystick_port(dev);
1834 
1835 	switch (io_port) {
1836 	case 0:
1837 		return -ENOSYS;
1838 
1839 	case 1: /* auto_detect */
1840 		for (io_port = 0x200; io_port <= 0x218; io_port += 8)
1841 			if (request_region(io_port, 8, "ens137x: gameport"))
1842 				break;
1843 		if (io_port > 0x218) {
1844 			printk(KERN_WARNING "ens137x: no gameport ports available\n");
1845 			return -EBUSY;
1846 		}
1847 		break;
1848 
1849 	default:
1850 		if (!request_region(io_port, 8, "ens137x: gameport")) {
1851 			printk(KERN_WARNING "ens137x: gameport io port 0x%#x in use\n",
1852 			       io_port);
1853 			return -EBUSY;
1854 		}
1855 		break;
1856 	}
1857 
1858 	ensoniq->gameport = gp = gameport_allocate_port();
1859 	if (!gp) {
1860 		printk(KERN_ERR "ens137x: cannot allocate memory for gameport\n");
1861 		release_region(io_port, 8);
1862 		return -ENOMEM;
1863 	}
1864 
1865 	gameport_set_name(gp, "ES137x");
1866 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(ensoniq->pci));
1867 	gameport_set_dev_parent(gp, &ensoniq->pci->dev);
1868 	gp->io = io_port;
1869 
1870 	ensoniq->ctrl |= ES_JYSTK_EN;
1871 #ifdef CHIP1371
1872 	ensoniq->ctrl &= ~ES_1371_JOY_ASELM;
1873 	ensoniq->ctrl |= ES_1371_JOY_ASEL((io_port - 0x200) / 8);
1874 #endif
1875 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
1876 
1877 	gameport_register_port(ensoniq->gameport);
1878 
1879 	return 0;
1880 }
1881 
1882 static void snd_ensoniq_free_gameport(struct ensoniq *ensoniq)
1883 {
1884 	if (ensoniq->gameport) {
1885 		int port = ensoniq->gameport->io;
1886 
1887 		gameport_unregister_port(ensoniq->gameport);
1888 		ensoniq->gameport = NULL;
1889 		ensoniq->ctrl &= ~ES_JYSTK_EN;
1890 		outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
1891 		release_region(port, 8);
1892 	}
1893 }
1894 #else
1895 static inline int snd_ensoniq_create_gameport(struct ensoniq *ensoniq, long port) { return -ENOSYS; }
1896 static inline void snd_ensoniq_free_gameport(struct ensoniq *ensoniq) { }
1897 #endif /* SUPPORT_JOYSTICK */
1898 
1899 /*
1900 
1901  */
1902 
1903 static void snd_ensoniq_proc_read(struct snd_info_entry *entry,
1904 				  struct snd_info_buffer *buffer)
1905 {
1906 	struct ensoniq *ensoniq = entry->private_data;
1907 
1908 #ifdef CHIP1370
1909 	snd_iprintf(buffer, "Ensoniq AudioPCI ES1370\n\n");
1910 #else
1911 	snd_iprintf(buffer, "Ensoniq AudioPCI ES1371\n\n");
1912 #endif
1913 	snd_iprintf(buffer, "Joystick enable  : %s\n",
1914 		    ensoniq->ctrl & ES_JYSTK_EN ? "on" : "off");
1915 #ifdef CHIP1370
1916 	snd_iprintf(buffer, "MIC +5V bias     : %s\n",
1917 		    ensoniq->ctrl & ES_1370_XCTL1 ? "on" : "off");
1918 	snd_iprintf(buffer, "Line In to AOUT  : %s\n",
1919 		    ensoniq->ctrl & ES_1370_XCTL0 ? "on" : "off");
1920 #else
1921 	snd_iprintf(buffer, "Joystick port    : 0x%x\n",
1922 		    (ES_1371_JOY_ASELI(ensoniq->ctrl) * 8) + 0x200);
1923 #endif
1924 }
1925 
1926 static void __devinit snd_ensoniq_proc_init(struct ensoniq * ensoniq)
1927 {
1928 	struct snd_info_entry *entry;
1929 
1930 	if (! snd_card_proc_new(ensoniq->card, "audiopci", &entry))
1931 		snd_info_set_text_ops(entry, ensoniq, snd_ensoniq_proc_read);
1932 }
1933 
1934 /*
1935 
1936  */
1937 
1938 static int snd_ensoniq_free(struct ensoniq *ensoniq)
1939 {
1940 	snd_ensoniq_free_gameport(ensoniq);
1941 	if (ensoniq->irq < 0)
1942 		goto __hw_end;
1943 #ifdef CHIP1370
1944 	outl(ES_1370_SERR_DISABLE, ES_REG(ensoniq, CONTROL));	/* switch everything off */
1945 	outl(0, ES_REG(ensoniq, SERIAL));	/* clear serial interface */
1946 #else
1947 	outl(0, ES_REG(ensoniq, CONTROL));	/* switch everything off */
1948 	outl(0, ES_REG(ensoniq, SERIAL));	/* clear serial interface */
1949 #endif
1950 	synchronize_irq(ensoniq->irq);
1951 	pci_set_power_state(ensoniq->pci, 3);
1952       __hw_end:
1953 #ifdef CHIP1370
1954 	if (ensoniq->dma_bug.area)
1955 		snd_dma_free_pages(&ensoniq->dma_bug);
1956 #endif
1957 	if (ensoniq->irq >= 0)
1958 		free_irq(ensoniq->irq, ensoniq);
1959 	pci_release_regions(ensoniq->pci);
1960 	pci_disable_device(ensoniq->pci);
1961 	kfree(ensoniq);
1962 	return 0;
1963 }
1964 
1965 static int snd_ensoniq_dev_free(struct snd_device *device)
1966 {
1967 	struct ensoniq *ensoniq = device->device_data;
1968 	return snd_ensoniq_free(ensoniq);
1969 }
1970 
1971 #ifdef CHIP1371
1972 static struct snd_pci_quirk es1371_amplifier_hack[] __devinitdata = {
1973 	SND_PCI_QUIRK_ID(0x107b, 0x2150),	/* Gateway Solo 2150 */
1974 	SND_PCI_QUIRK_ID(0x13bd, 0x100c),	/* EV1938 on Mebius PC-MJ100V */
1975 	SND_PCI_QUIRK_ID(0x1102, 0x5938),	/* Targa Xtender300 */
1976 	SND_PCI_QUIRK_ID(0x1102, 0x8938),	/* IPC Topnote G notebook */
1977 	{ } /* end */
1978 };
1979 
1980 static struct es1371_quirk es1371_ac97_reset_hack[] = {
1981 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_C },
1982 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_D },
1983 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_CT5880, .rev = CT5880REV_CT5880_E },
1984 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_ES1371, .rev = ES1371REV_CT5880_A },
1985 	{ .vid = PCI_VENDOR_ID_ENSONIQ, .did = PCI_DEVICE_ID_ENSONIQ_ES1371, .rev = ES1371REV_ES1373_8 },
1986 	{ .vid = PCI_ANY_ID, .did = PCI_ANY_ID }
1987 };
1988 #endif
1989 
1990 static void snd_ensoniq_chip_init(struct ensoniq *ensoniq)
1991 {
1992 #ifdef CHIP1371
1993 	int idx;
1994 #endif
1995 	/* this code was part of snd_ensoniq_create before intruduction
1996 	  * of suspend/resume
1997 	  */
1998 #ifdef CHIP1370
1999 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
2000 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
2001 	outl(ES_MEM_PAGEO(ES_PAGE_ADC), ES_REG(ensoniq, MEM_PAGE));
2002 	outl(ensoniq->dma_bug.addr, ES_REG(ensoniq, PHANTOM_FRAME));
2003 	outl(0, ES_REG(ensoniq, PHANTOM_COUNT));
2004 #else
2005 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
2006 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
2007 	outl(0, ES_REG(ensoniq, 1371_LEGACY));
2008 	if (es1371_quirk_lookup(ensoniq, es1371_ac97_reset_hack)) {
2009 	    outl(ensoniq->cssr, ES_REG(ensoniq, STATUS));
2010 	    /* need to delay around 20ms(bleech) to give
2011 	       some CODECs enough time to wakeup */
2012 	    msleep(20);
2013 	}
2014 	/* AC'97 warm reset to start the bitclk */
2015 	outl(ensoniq->ctrl | ES_1371_SYNC_RES, ES_REG(ensoniq, CONTROL));
2016 	inl(ES_REG(ensoniq, CONTROL));
2017 	udelay(20);
2018 	outl(ensoniq->ctrl, ES_REG(ensoniq, CONTROL));
2019 	/* Init the sample rate converter */
2020 	snd_es1371_wait_src_ready(ensoniq);
2021 	outl(ES_1371_SRC_DISABLE, ES_REG(ensoniq, 1371_SMPRATE));
2022 	for (idx = 0; idx < 0x80; idx++)
2023 		snd_es1371_src_write(ensoniq, idx, 0);
2024 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC1 + ES_SMPREG_TRUNC_N, 16 << 4);
2025 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC1 + ES_SMPREG_INT_REGS, 16 << 10);
2026 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC2 + ES_SMPREG_TRUNC_N, 16 << 4);
2027 	snd_es1371_src_write(ensoniq, ES_SMPREG_DAC2 + ES_SMPREG_INT_REGS, 16 << 10);
2028 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_ADC, 1 << 12);
2029 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_ADC + 1, 1 << 12);
2030 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_DAC1, 1 << 12);
2031 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_DAC1 + 1, 1 << 12);
2032 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_DAC2, 1 << 12);
2033 	snd_es1371_src_write(ensoniq, ES_SMPREG_VOL_DAC2 + 1, 1 << 12);
2034 	snd_es1371_adc_rate(ensoniq, 22050);
2035 	snd_es1371_dac1_rate(ensoniq, 22050);
2036 	snd_es1371_dac2_rate(ensoniq, 22050);
2037 	/* WARNING:
2038 	 * enabling the sample rate converter without properly programming
2039 	 * its parameters causes the chip to lock up (the SRC busy bit will
2040 	 * be stuck high, and I've found no way to rectify this other than
2041 	 * power cycle) - Thomas Sailer
2042 	 */
2043 	snd_es1371_wait_src_ready(ensoniq);
2044 	outl(0, ES_REG(ensoniq, 1371_SMPRATE));
2045 	/* try reset codec directly */
2046 	outl(ES_1371_CODEC_WRITE(0, 0), ES_REG(ensoniq, 1371_CODEC));
2047 #endif
2048 	outb(ensoniq->uartc = 0x00, ES_REG(ensoniq, UART_CONTROL));
2049 	outb(0x00, ES_REG(ensoniq, UART_RES));
2050 	outl(ensoniq->cssr, ES_REG(ensoniq, STATUS));
2051 	synchronize_irq(ensoniq->irq);
2052 }
2053 
2054 #ifdef CONFIG_PM
2055 static int snd_ensoniq_suspend(struct pci_dev *pci, pm_message_t state)
2056 {
2057 	struct snd_card *card = pci_get_drvdata(pci);
2058 	struct ensoniq *ensoniq = card->private_data;
2059 
2060 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2061 
2062 	snd_pcm_suspend_all(ensoniq->pcm1);
2063 	snd_pcm_suspend_all(ensoniq->pcm2);
2064 
2065 #ifdef CHIP1371
2066 	snd_ac97_suspend(ensoniq->u.es1371.ac97);
2067 #else
2068 	/* try to reset AK4531 */
2069 	outw(ES_1370_CODEC_WRITE(AK4531_RESET, 0x02), ES_REG(ensoniq, 1370_CODEC));
2070 	inw(ES_REG(ensoniq, 1370_CODEC));
2071 	udelay(100);
2072 	outw(ES_1370_CODEC_WRITE(AK4531_RESET, 0x03), ES_REG(ensoniq, 1370_CODEC));
2073 	inw(ES_REG(ensoniq, 1370_CODEC));
2074 	udelay(100);
2075 	snd_ak4531_suspend(ensoniq->u.es1370.ak4531);
2076 #endif
2077 
2078 	pci_disable_device(pci);
2079 	pci_save_state(pci);
2080 	pci_set_power_state(pci, pci_choose_state(pci, state));
2081 	return 0;
2082 }
2083 
2084 static int snd_ensoniq_resume(struct pci_dev *pci)
2085 {
2086 	struct snd_card *card = pci_get_drvdata(pci);
2087 	struct ensoniq *ensoniq = card->private_data;
2088 
2089 	pci_set_power_state(pci, PCI_D0);
2090 	pci_restore_state(pci);
2091 	if (pci_enable_device(pci) < 0) {
2092 		printk(KERN_ERR DRIVER_NAME ": pci_enable_device failed, "
2093 		       "disabling device\n");
2094 		snd_card_disconnect(card);
2095 		return -EIO;
2096 	}
2097 	pci_set_master(pci);
2098 
2099 	snd_ensoniq_chip_init(ensoniq);
2100 
2101 #ifdef CHIP1371
2102 	snd_ac97_resume(ensoniq->u.es1371.ac97);
2103 #else
2104 	snd_ak4531_resume(ensoniq->u.es1370.ak4531);
2105 #endif
2106 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2107 	return 0;
2108 }
2109 #endif /* CONFIG_PM */
2110 
2111 
2112 static int __devinit snd_ensoniq_create(struct snd_card *card,
2113 				     struct pci_dev *pci,
2114 				     struct ensoniq ** rensoniq)
2115 {
2116 	struct ensoniq *ensoniq;
2117 	unsigned char cmdb;
2118 	int err;
2119 	static struct snd_device_ops ops = {
2120 		.dev_free =	snd_ensoniq_dev_free,
2121 	};
2122 
2123 	*rensoniq = NULL;
2124 	if ((err = pci_enable_device(pci)) < 0)
2125 		return err;
2126 	ensoniq = kzalloc(sizeof(*ensoniq), GFP_KERNEL);
2127 	if (ensoniq == NULL) {
2128 		pci_disable_device(pci);
2129 		return -ENOMEM;
2130 	}
2131 	spin_lock_init(&ensoniq->reg_lock);
2132 	mutex_init(&ensoniq->src_mutex);
2133 	ensoniq->card = card;
2134 	ensoniq->pci = pci;
2135 	ensoniq->irq = -1;
2136 	if ((err = pci_request_regions(pci, "Ensoniq AudioPCI")) < 0) {
2137 		kfree(ensoniq);
2138 		pci_disable_device(pci);
2139 		return err;
2140 	}
2141 	ensoniq->port = pci_resource_start(pci, 0);
2142 	if (request_irq(pci->irq, snd_audiopci_interrupt, IRQF_SHARED,
2143 			"Ensoniq AudioPCI", ensoniq)) {
2144 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2145 		snd_ensoniq_free(ensoniq);
2146 		return -EBUSY;
2147 	}
2148 	ensoniq->irq = pci->irq;
2149 #ifdef CHIP1370
2150 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2151 				16, &ensoniq->dma_bug) < 0) {
2152 		snd_printk(KERN_ERR "unable to allocate space for phantom area - dma_bug\n");
2153 		snd_ensoniq_free(ensoniq);
2154 		return -EBUSY;
2155 	}
2156 #endif
2157 	pci_set_master(pci);
2158 	pci_read_config_byte(pci, PCI_REVISION_ID, &cmdb);
2159 	ensoniq->rev = cmdb;
2160 #ifdef CHIP1370
2161 #if 0
2162 	ensoniq->ctrl = ES_1370_CDC_EN | ES_1370_SERR_DISABLE |
2163 		ES_1370_PCLKDIVO(ES_1370_SRTODIV(8000));
2164 #else	/* get microphone working */
2165 	ensoniq->ctrl = ES_1370_CDC_EN | ES_1370_PCLKDIVO(ES_1370_SRTODIV(8000));
2166 #endif
2167 	ensoniq->sctrl = 0;
2168 #else
2169 	ensoniq->ctrl = 0;
2170 	ensoniq->sctrl = 0;
2171 	ensoniq->cssr = 0;
2172 	if (snd_pci_quirk_lookup(pci, es1371_amplifier_hack))
2173 		ensoniq->ctrl |= ES_1371_GPIO_OUT(1);	/* turn amplifier on */
2174 
2175 	if (es1371_quirk_lookup(ensoniq, es1371_ac97_reset_hack))
2176 		ensoniq->cssr |= ES_1371_ST_AC97_RST;
2177 #endif
2178 
2179 	snd_ensoniq_chip_init(ensoniq);
2180 
2181 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, ensoniq, &ops)) < 0) {
2182 		snd_ensoniq_free(ensoniq);
2183 		return err;
2184 	}
2185 
2186 	snd_ensoniq_proc_init(ensoniq);
2187 
2188 	snd_card_set_dev(card, &pci->dev);
2189 
2190 	*rensoniq = ensoniq;
2191 	return 0;
2192 }
2193 
2194 /*
2195  *  MIDI section
2196  */
2197 
2198 static void snd_ensoniq_midi_interrupt(struct ensoniq * ensoniq)
2199 {
2200 	struct snd_rawmidi *rmidi = ensoniq->rmidi;
2201 	unsigned char status, mask, byte;
2202 
2203 	if (rmidi == NULL)
2204 		return;
2205 	/* do Rx at first */
2206 	spin_lock(&ensoniq->reg_lock);
2207 	mask = ensoniq->uartm & ES_MODE_INPUT ? ES_RXRDY : 0;
2208 	while (mask) {
2209 		status = inb(ES_REG(ensoniq, UART_STATUS));
2210 		if ((status & mask) == 0)
2211 			break;
2212 		byte = inb(ES_REG(ensoniq, UART_DATA));
2213 		snd_rawmidi_receive(ensoniq->midi_input, &byte, 1);
2214 	}
2215 	spin_unlock(&ensoniq->reg_lock);
2216 
2217 	/* do Tx at second */
2218 	spin_lock(&ensoniq->reg_lock);
2219 	mask = ensoniq->uartm & ES_MODE_OUTPUT ? ES_TXRDY : 0;
2220 	while (mask) {
2221 		status = inb(ES_REG(ensoniq, UART_STATUS));
2222 		if ((status & mask) == 0)
2223 			break;
2224 		if (snd_rawmidi_transmit(ensoniq->midi_output, &byte, 1) != 1) {
2225 			ensoniq->uartc &= ~ES_TXINTENM;
2226 			outb(ensoniq->uartc, ES_REG(ensoniq, UART_CONTROL));
2227 			mask &= ~ES_TXRDY;
2228 		} else {
2229 			outb(byte, ES_REG(ensoniq, UART_DATA));
2230 		}
2231 	}
2232 	spin_unlock(&ensoniq->reg_lock);
2233 }
2234 
2235 static int snd_ensoniq_midi_input_open(struct snd_rawmidi_substream *substream)
2236 {
2237 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2238 
2239 	spin_lock_irq(&ensoniq->reg_lock);
2240 	ensoniq->uartm |= ES_MODE_INPUT;
2241 	ensoniq->midi_input = substream;
2242 	if (!(ensoniq->uartm & ES_MODE_OUTPUT)) {
2243 		outb(ES_CNTRL(3), ES_REG(ensoniq, UART_CONTROL));
2244 		outb(ensoniq->uartc = 0, ES_REG(ensoniq, UART_CONTROL));
2245 		outl(ensoniq->ctrl |= ES_UART_EN, ES_REG(ensoniq, CONTROL));
2246 	}
2247 	spin_unlock_irq(&ensoniq->reg_lock);
2248 	return 0;
2249 }
2250 
2251 static int snd_ensoniq_midi_input_close(struct snd_rawmidi_substream *substream)
2252 {
2253 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2254 
2255 	spin_lock_irq(&ensoniq->reg_lock);
2256 	if (!(ensoniq->uartm & ES_MODE_OUTPUT)) {
2257 		outb(ensoniq->uartc = 0, ES_REG(ensoniq, UART_CONTROL));
2258 		outl(ensoniq->ctrl &= ~ES_UART_EN, ES_REG(ensoniq, CONTROL));
2259 	} else {
2260 		outb(ensoniq->uartc &= ~ES_RXINTEN, ES_REG(ensoniq, UART_CONTROL));
2261 	}
2262 	ensoniq->midi_input = NULL;
2263 	ensoniq->uartm &= ~ES_MODE_INPUT;
2264 	spin_unlock_irq(&ensoniq->reg_lock);
2265 	return 0;
2266 }
2267 
2268 static int snd_ensoniq_midi_output_open(struct snd_rawmidi_substream *substream)
2269 {
2270 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2271 
2272 	spin_lock_irq(&ensoniq->reg_lock);
2273 	ensoniq->uartm |= ES_MODE_OUTPUT;
2274 	ensoniq->midi_output = substream;
2275 	if (!(ensoniq->uartm & ES_MODE_INPUT)) {
2276 		outb(ES_CNTRL(3), ES_REG(ensoniq, UART_CONTROL));
2277 		outb(ensoniq->uartc = 0, ES_REG(ensoniq, UART_CONTROL));
2278 		outl(ensoniq->ctrl |= ES_UART_EN, ES_REG(ensoniq, CONTROL));
2279 	}
2280 	spin_unlock_irq(&ensoniq->reg_lock);
2281 	return 0;
2282 }
2283 
2284 static int snd_ensoniq_midi_output_close(struct snd_rawmidi_substream *substream)
2285 {
2286 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2287 
2288 	spin_lock_irq(&ensoniq->reg_lock);
2289 	if (!(ensoniq->uartm & ES_MODE_INPUT)) {
2290 		outb(ensoniq->uartc = 0, ES_REG(ensoniq, UART_CONTROL));
2291 		outl(ensoniq->ctrl &= ~ES_UART_EN, ES_REG(ensoniq, CONTROL));
2292 	} else {
2293 		outb(ensoniq->uartc &= ~ES_TXINTENM, ES_REG(ensoniq, UART_CONTROL));
2294 	}
2295 	ensoniq->midi_output = NULL;
2296 	ensoniq->uartm &= ~ES_MODE_OUTPUT;
2297 	spin_unlock_irq(&ensoniq->reg_lock);
2298 	return 0;
2299 }
2300 
2301 static void snd_ensoniq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
2302 {
2303 	unsigned long flags;
2304 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2305 	int idx;
2306 
2307 	spin_lock_irqsave(&ensoniq->reg_lock, flags);
2308 	if (up) {
2309 		if ((ensoniq->uartc & ES_RXINTEN) == 0) {
2310 			/* empty input FIFO */
2311 			for (idx = 0; idx < 32; idx++)
2312 				inb(ES_REG(ensoniq, UART_DATA));
2313 			ensoniq->uartc |= ES_RXINTEN;
2314 			outb(ensoniq->uartc, ES_REG(ensoniq, UART_CONTROL));
2315 		}
2316 	} else {
2317 		if (ensoniq->uartc & ES_RXINTEN) {
2318 			ensoniq->uartc &= ~ES_RXINTEN;
2319 			outb(ensoniq->uartc, ES_REG(ensoniq, UART_CONTROL));
2320 		}
2321 	}
2322 	spin_unlock_irqrestore(&ensoniq->reg_lock, flags);
2323 }
2324 
2325 static void snd_ensoniq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
2326 {
2327 	unsigned long flags;
2328 	struct ensoniq *ensoniq = substream->rmidi->private_data;
2329 	unsigned char byte;
2330 
2331 	spin_lock_irqsave(&ensoniq->reg_lock, flags);
2332 	if (up) {
2333 		if (ES_TXINTENI(ensoniq->uartc) == 0) {
2334 			ensoniq->uartc |= ES_TXINTENO(1);
2335 			/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
2336 			while (ES_TXINTENI(ensoniq->uartc) == 1 &&
2337 			       (inb(ES_REG(ensoniq, UART_STATUS)) & ES_TXRDY)) {
2338 				if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
2339 					ensoniq->uartc &= ~ES_TXINTENM;
2340 				} else {
2341 					outb(byte, ES_REG(ensoniq, UART_DATA));
2342 				}
2343 			}
2344 			outb(ensoniq->uartc, ES_REG(ensoniq, UART_CONTROL));
2345 		}
2346 	} else {
2347 		if (ES_TXINTENI(ensoniq->uartc) == 1) {
2348 			ensoniq->uartc &= ~ES_TXINTENM;
2349 			outb(ensoniq->uartc, ES_REG(ensoniq, UART_CONTROL));
2350 		}
2351 	}
2352 	spin_unlock_irqrestore(&ensoniq->reg_lock, flags);
2353 }
2354 
2355 static struct snd_rawmidi_ops snd_ensoniq_midi_output =
2356 {
2357 	.open =		snd_ensoniq_midi_output_open,
2358 	.close =	snd_ensoniq_midi_output_close,
2359 	.trigger =	snd_ensoniq_midi_output_trigger,
2360 };
2361 
2362 static struct snd_rawmidi_ops snd_ensoniq_midi_input =
2363 {
2364 	.open =		snd_ensoniq_midi_input_open,
2365 	.close =	snd_ensoniq_midi_input_close,
2366 	.trigger =	snd_ensoniq_midi_input_trigger,
2367 };
2368 
2369 static int __devinit snd_ensoniq_midi(struct ensoniq * ensoniq, int device,
2370 				      struct snd_rawmidi **rrawmidi)
2371 {
2372 	struct snd_rawmidi *rmidi;
2373 	int err;
2374 
2375 	if (rrawmidi)
2376 		*rrawmidi = NULL;
2377 	if ((err = snd_rawmidi_new(ensoniq->card, "ES1370/1", device, 1, 1, &rmidi)) < 0)
2378 		return err;
2379 #ifdef CHIP1370
2380 	strcpy(rmidi->name, "ES1370");
2381 #else
2382 	strcpy(rmidi->name, "ES1371");
2383 #endif
2384 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_ensoniq_midi_output);
2385 	snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_ensoniq_midi_input);
2386 	rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT |
2387 		SNDRV_RAWMIDI_INFO_DUPLEX;
2388 	rmidi->private_data = ensoniq;
2389 	ensoniq->rmidi = rmidi;
2390 	if (rrawmidi)
2391 		*rrawmidi = rmidi;
2392 	return 0;
2393 }
2394 
2395 /*
2396  *  Interrupt handler
2397  */
2398 
2399 static irqreturn_t snd_audiopci_interrupt(int irq, void *dev_id)
2400 {
2401 	struct ensoniq *ensoniq = dev_id;
2402 	unsigned int status, sctrl;
2403 
2404 	if (ensoniq == NULL)
2405 		return IRQ_NONE;
2406 
2407 	status = inl(ES_REG(ensoniq, STATUS));
2408 	if (!(status & ES_INTR))
2409 		return IRQ_NONE;
2410 
2411 	spin_lock(&ensoniq->reg_lock);
2412 	sctrl = ensoniq->sctrl;
2413 	if (status & ES_DAC1)
2414 		sctrl &= ~ES_P1_INT_EN;
2415 	if (status & ES_DAC2)
2416 		sctrl &= ~ES_P2_INT_EN;
2417 	if (status & ES_ADC)
2418 		sctrl &= ~ES_R1_INT_EN;
2419 	outl(sctrl, ES_REG(ensoniq, SERIAL));
2420 	outl(ensoniq->sctrl, ES_REG(ensoniq, SERIAL));
2421 	spin_unlock(&ensoniq->reg_lock);
2422 
2423 	if (status & ES_UART)
2424 		snd_ensoniq_midi_interrupt(ensoniq);
2425 	if ((status & ES_DAC2) && ensoniq->playback2_substream)
2426 		snd_pcm_period_elapsed(ensoniq->playback2_substream);
2427 	if ((status & ES_ADC) && ensoniq->capture_substream)
2428 		snd_pcm_period_elapsed(ensoniq->capture_substream);
2429 	if ((status & ES_DAC1) && ensoniq->playback1_substream)
2430 		snd_pcm_period_elapsed(ensoniq->playback1_substream);
2431 	return IRQ_HANDLED;
2432 }
2433 
2434 static int __devinit snd_audiopci_probe(struct pci_dev *pci,
2435 					const struct pci_device_id *pci_id)
2436 {
2437 	static int dev;
2438 	struct snd_card *card;
2439 	struct ensoniq *ensoniq;
2440 	int err, pcm_devs[2];
2441 
2442 	if (dev >= SNDRV_CARDS)
2443 		return -ENODEV;
2444 	if (!enable[dev]) {
2445 		dev++;
2446 		return -ENOENT;
2447 	}
2448 
2449 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2450 	if (card == NULL)
2451 		return -ENOMEM;
2452 
2453 	if ((err = snd_ensoniq_create(card, pci, &ensoniq)) < 0) {
2454 		snd_card_free(card);
2455 		return err;
2456 	}
2457 	card->private_data = ensoniq;
2458 
2459 	pcm_devs[0] = 0; pcm_devs[1] = 1;
2460 #ifdef CHIP1370
2461 	if ((err = snd_ensoniq_1370_mixer(ensoniq)) < 0) {
2462 		snd_card_free(card);
2463 		return err;
2464 	}
2465 #endif
2466 #ifdef CHIP1371
2467 	if ((err = snd_ensoniq_1371_mixer(ensoniq, spdif[dev], lineio[dev])) < 0) {
2468 		snd_card_free(card);
2469 		return err;
2470 	}
2471 #endif
2472 	if ((err = snd_ensoniq_pcm(ensoniq, 0, NULL)) < 0) {
2473 		snd_card_free(card);
2474 		return err;
2475 	}
2476 	if ((err = snd_ensoniq_pcm2(ensoniq, 1, NULL)) < 0) {
2477 		snd_card_free(card);
2478 		return err;
2479 	}
2480 	if ((err = snd_ensoniq_midi(ensoniq, 0, NULL)) < 0) {
2481 		snd_card_free(card);
2482 		return err;
2483 	}
2484 
2485 	snd_ensoniq_create_gameport(ensoniq, dev);
2486 
2487 	strcpy(card->driver, DRIVER_NAME);
2488 
2489 	strcpy(card->shortname, "Ensoniq AudioPCI");
2490 	sprintf(card->longname, "%s %s at 0x%lx, irq %i",
2491 		card->shortname,
2492 		card->driver,
2493 		ensoniq->port,
2494 		ensoniq->irq);
2495 
2496 	if ((err = snd_card_register(card)) < 0) {
2497 		snd_card_free(card);
2498 		return err;
2499 	}
2500 
2501 	pci_set_drvdata(pci, card);
2502 	dev++;
2503 	return 0;
2504 }
2505 
2506 static void __devexit snd_audiopci_remove(struct pci_dev *pci)
2507 {
2508 	snd_card_free(pci_get_drvdata(pci));
2509 	pci_set_drvdata(pci, NULL);
2510 }
2511 
2512 static struct pci_driver driver = {
2513 	.name = DRIVER_NAME,
2514 	.id_table = snd_audiopci_ids,
2515 	.probe = snd_audiopci_probe,
2516 	.remove = __devexit_p(snd_audiopci_remove),
2517 #ifdef CONFIG_PM
2518 	.suspend = snd_ensoniq_suspend,
2519 	.resume = snd_ensoniq_resume,
2520 #endif
2521 };
2522 
2523 static int __init alsa_card_ens137x_init(void)
2524 {
2525 	return pci_register_driver(&driver);
2526 }
2527 
2528 static void __exit alsa_card_ens137x_exit(void)
2529 {
2530 	pci_unregister_driver(&driver);
2531 }
2532 
2533 module_init(alsa_card_ens137x_init)
2534 module_exit(alsa_card_ens137x_exit)
2535