xref: /openbmc/linux/sound/pci/ice1712/ews.c (revision 1da177e4)
1 /*
2  *   ALSA driver for ICEnsemble ICE1712 (Envy24)
3  *
4  *   Lowlevel functions for Terratec EWS88MT/D, EWX24/96, DMX 6Fire
5  *
6  *	Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
7  *                    2002 Takashi Iwai <tiwai@suse.de>
8  *
9  *   This program is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU General Public License as published by
11  *   the Free Software Foundation; either version 2 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This program is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *   GNU General Public License for more details.
18  *
19  *   You should have received a copy of the GNU General Public License
20  *   along with this program; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  *
23  */
24 
25 #include <sound/driver.h>
26 #include <asm/io.h>
27 #include <linux/delay.h>
28 #include <linux/interrupt.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <sound/core.h>
32 #include <sound/cs8427.h>
33 #include <sound/asoundef.h>
34 
35 #include "ice1712.h"
36 #include "ews.h"
37 
38 #define SND_CS8404
39 #include <sound/cs8403.h>
40 
41 enum {
42 	EWS_I2C_CS8404 = 0, EWS_I2C_PCF1, EWS_I2C_PCF2,
43 	EWS_I2C_88D = 0,
44 	EWS_I2C_6FIRE = 0
45 };
46 
47 
48 /*
49  * access via i2c mode (for EWX 24/96, EWS 88MT&D)
50  */
51 
52 /* send SDA and SCL */
53 static void ewx_i2c_setlines(snd_i2c_bus_t *bus, int clk, int data)
54 {
55 	ice1712_t *ice = bus->private_data;
56 	unsigned char tmp = 0;
57 	if (clk)
58 		tmp |= ICE1712_EWX2496_SERIAL_CLOCK;
59 	if (data)
60 		tmp |= ICE1712_EWX2496_SERIAL_DATA;
61 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
62 	udelay(5);
63 }
64 
65 static int ewx_i2c_getclock(snd_i2c_bus_t *bus)
66 {
67 	ice1712_t *ice = bus->private_data;
68 	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_CLOCK ? 1 : 0;
69 }
70 
71 static int ewx_i2c_getdata(snd_i2c_bus_t *bus, int ack)
72 {
73 	ice1712_t *ice = bus->private_data;
74 	int bit;
75 	/* set RW pin to low */
76 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_RW);
77 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, 0);
78 	if (ack)
79 		udelay(5);
80 	bit = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ICE1712_EWX2496_SERIAL_DATA ? 1 : 0;
81 	/* set RW pin to high */
82 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, ICE1712_EWX2496_RW);
83 	/* reset write mask */
84 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~ICE1712_EWX2496_SERIAL_CLOCK);
85 	return bit;
86 }
87 
88 static void ewx_i2c_start(snd_i2c_bus_t *bus)
89 {
90 	ice1712_t *ice = bus->private_data;
91 	unsigned char mask;
92 
93 	snd_ice1712_save_gpio_status(ice);
94 	/* set RW high */
95 	mask = ICE1712_EWX2496_RW;
96 	switch (ice->eeprom.subvendor) {
97 	case ICE1712_SUBDEVICE_EWX2496:
98 		mask |= ICE1712_EWX2496_AK4524_CS; /* CS high also */
99 		break;
100 	case ICE1712_SUBDEVICE_DMX6FIRE:
101 		mask |= ICE1712_6FIRE_AK4524_CS_MASK; /* CS high also */
102 		break;
103 	}
104 	snd_ice1712_gpio_write_bits(ice, mask, mask);
105 }
106 
107 static void ewx_i2c_stop(snd_i2c_bus_t *bus)
108 {
109 	ice1712_t *ice = bus->private_data;
110 	snd_ice1712_restore_gpio_status(ice);
111 }
112 
113 static void ewx_i2c_direction(snd_i2c_bus_t *bus, int clock, int data)
114 {
115 	ice1712_t *ice = bus->private_data;
116 	unsigned char mask = 0;
117 
118 	if (clock)
119 		mask |= ICE1712_EWX2496_SERIAL_CLOCK; /* write SCL */
120 	if (data)
121 		mask |= ICE1712_EWX2496_SERIAL_DATA; /* write SDA */
122 	ice->gpio.direction &= ~(ICE1712_EWX2496_SERIAL_CLOCK|ICE1712_EWX2496_SERIAL_DATA);
123 	ice->gpio.direction |= mask;
124 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION, ice->gpio.direction);
125 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~mask);
126 }
127 
128 static snd_i2c_bit_ops_t snd_ice1712_ewx_cs8427_bit_ops = {
129 	.start = ewx_i2c_start,
130 	.stop = ewx_i2c_stop,
131 	.direction = ewx_i2c_direction,
132 	.setlines = ewx_i2c_setlines,
133 	.getclock = ewx_i2c_getclock,
134 	.getdata = ewx_i2c_getdata,
135 };
136 
137 
138 /*
139  * AK4524 access
140  */
141 
142 /* AK4524 chip select; address 0x48 bit 0-3 */
143 static int snd_ice1712_ews88mt_chip_select(ice1712_t *ice, int chip_mask)
144 {
145 	unsigned char data, ndata;
146 
147 	snd_assert(chip_mask >= 0 && chip_mask <= 0x0f, return -EINVAL);
148 	snd_i2c_lock(ice->i2c);
149 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_PCF2], &data, 1) != 1)
150 		goto __error;
151 	ndata = (data & 0xf0) | chip_mask;
152 	if (ndata != data)
153 		if (snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_PCF2], &ndata, 1) != 1)
154 			goto __error;
155 	snd_i2c_unlock(ice->i2c);
156 	return 0;
157 
158      __error:
159 	snd_i2c_unlock(ice->i2c);
160 	snd_printk(KERN_ERR "AK4524 chip select failed, check cable to the front module\n");
161 	return -EIO;
162 }
163 
164 /* start callback for EWS88MT, needs to select a certain chip mask */
165 static void ews88mt_ak4524_lock(akm4xxx_t *ak, int chip)
166 {
167 	ice1712_t *ice = ak->private_data[0];
168 	unsigned char tmp;
169 	/* assert AK4524 CS */
170 	if (snd_ice1712_ews88mt_chip_select(ice, ~(1 << chip) & 0x0f) < 0)
171 		snd_printk(KERN_ERR "fatal error (ews88mt chip select)\n");
172 	snd_ice1712_save_gpio_status(ice);
173 	tmp = ICE1712_EWS88_SERIAL_DATA |
174 		ICE1712_EWS88_SERIAL_CLOCK |
175 		ICE1712_EWS88_RW;
176 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
177 			  ice->gpio.direction | tmp);
178 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
179 }
180 
181 /* stop callback for EWS88MT, needs to deselect chip mask */
182 static void ews88mt_ak4524_unlock(akm4xxx_t *ak, int chip)
183 {
184 	ice1712_t *ice = ak->private_data[0];
185 	snd_ice1712_restore_gpio_status(ice);
186 	udelay(1);
187 	snd_ice1712_ews88mt_chip_select(ice, 0x0f);
188 }
189 
190 /* start callback for EWX24/96 */
191 static void ewx2496_ak4524_lock(akm4xxx_t *ak, int chip)
192 {
193 	ice1712_t *ice = ak->private_data[0];
194 	unsigned char tmp;
195 	snd_ice1712_save_gpio_status(ice);
196 	tmp =  ICE1712_EWX2496_SERIAL_DATA |
197 		ICE1712_EWX2496_SERIAL_CLOCK |
198 		ICE1712_EWX2496_AK4524_CS |
199 		ICE1712_EWX2496_RW;
200 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
201 			  ice->gpio.direction | tmp);
202 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
203 }
204 
205 /* start callback for DMX 6fire */
206 static void dmx6fire_ak4524_lock(akm4xxx_t *ak, int chip)
207 {
208 	struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
209 	ice1712_t *ice = ak->private_data[0];
210 	unsigned char tmp;
211 	snd_ice1712_save_gpio_status(ice);
212 	tmp = priv->cs_mask = priv->cs_addr = (1 << chip) & ICE1712_6FIRE_AK4524_CS_MASK;
213 	tmp |= ICE1712_6FIRE_SERIAL_DATA |
214 		ICE1712_6FIRE_SERIAL_CLOCK |
215 		ICE1712_6FIRE_RW;
216 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
217 			  ice->gpio.direction | tmp);
218 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
219 }
220 
221 /*
222  * CS8404 interface on EWS88MT/D
223  */
224 
225 static void snd_ice1712_ews_cs8404_spdif_write(ice1712_t *ice, unsigned char bits)
226 {
227 	unsigned char bytes[2];
228 
229 	snd_i2c_lock(ice->i2c);
230 	switch (ice->eeprom.subvendor) {
231 	case ICE1712_SUBDEVICE_EWS88MT:
232 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
233 	case ICE1712_SUBDEVICE_PHASE88:
234 		if (snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_CS8404], &bits, 1) != 1)
235 			goto _error;
236 		break;
237 	case ICE1712_SUBDEVICE_EWS88D:
238 		if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_88D], bytes, 2) != 2)
239 			goto _error;
240 		if (bits != bytes[1]) {
241 			bytes[1] = bits;
242 			if (snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_88D], bytes, 2) != 2)
243 				goto _error;
244 		}
245 		break;
246 	}
247  _error:
248 	snd_i2c_unlock(ice->i2c);
249 }
250 
251 /*
252  */
253 
254 static void ews88_spdif_default_get(ice1712_t *ice, snd_ctl_elem_value_t * ucontrol)
255 {
256 	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_bits);
257 }
258 
259 static int ews88_spdif_default_put(ice1712_t *ice, snd_ctl_elem_value_t * ucontrol)
260 {
261 	unsigned int val;
262 	int change;
263 
264 	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
265 	spin_lock_irq(&ice->reg_lock);
266 	change = ice->spdif.cs8403_bits != val;
267 	ice->spdif.cs8403_bits = val;
268 	if (change && ice->playback_pro_substream == NULL) {
269 		spin_unlock_irq(&ice->reg_lock);
270 		snd_ice1712_ews_cs8404_spdif_write(ice, val);
271 	} else {
272 		spin_unlock_irq(&ice->reg_lock);
273 	}
274 	return change;
275 }
276 
277 static void ews88_spdif_stream_get(ice1712_t *ice, snd_ctl_elem_value_t * ucontrol)
278 {
279 	snd_cs8404_decode_spdif_bits(&ucontrol->value.iec958, ice->spdif.cs8403_stream_bits);
280 }
281 
282 static int ews88_spdif_stream_put(ice1712_t *ice, snd_ctl_elem_value_t * ucontrol)
283 {
284 	unsigned int val;
285 	int change;
286 
287 	val = snd_cs8404_encode_spdif_bits(&ucontrol->value.iec958);
288 	spin_lock_irq(&ice->reg_lock);
289 	change = ice->spdif.cs8403_stream_bits != val;
290 	ice->spdif.cs8403_stream_bits = val;
291 	if (change && ice->playback_pro_substream != NULL) {
292 		spin_unlock_irq(&ice->reg_lock);
293 		snd_ice1712_ews_cs8404_spdif_write(ice, val);
294 	} else {
295 		spin_unlock_irq(&ice->reg_lock);
296 	}
297 	return change;
298 }
299 
300 
301 /* open callback */
302 static void ews88_open_spdif(ice1712_t *ice, snd_pcm_substream_t * substream)
303 {
304 	ice->spdif.cs8403_stream_bits = ice->spdif.cs8403_bits;
305 }
306 
307 /* set up SPDIF for EWS88MT / EWS88D */
308 static void ews88_setup_spdif(ice1712_t *ice, int rate)
309 {
310 	unsigned long flags;
311 	unsigned char tmp;
312 	int change;
313 
314 	spin_lock_irqsave(&ice->reg_lock, flags);
315 	tmp = ice->spdif.cs8403_stream_bits;
316 	if (tmp & 0x10)		/* consumer */
317 		tmp &= (tmp & 0x01) ? ~0x06 : ~0x60;
318 	switch (rate) {
319 	case 32000: tmp |= (tmp & 0x01) ? 0x02 : 0x00; break;
320 	case 44100: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
321 	case 48000: tmp |= (tmp & 0x01) ? 0x04 : 0x20; break;
322 	default: tmp |= (tmp & 0x01) ? 0x06 : 0x40; break;
323 	}
324 	change = ice->spdif.cs8403_stream_bits != tmp;
325 	ice->spdif.cs8403_stream_bits = tmp;
326 	spin_unlock_irqrestore(&ice->reg_lock, flags);
327 	if (change)
328 		snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &ice->spdif.stream_ctl->id);
329 	snd_ice1712_ews_cs8404_spdif_write(ice, tmp);
330 }
331 
332 
333 /*
334  */
335 static akm4xxx_t akm_ews88mt __devinitdata = {
336 	.num_adcs = 8,
337 	.num_dacs = 8,
338 	.type = SND_AK4524,
339 	.ops = {
340 		.lock = ews88mt_ak4524_lock,
341 		.unlock = ews88mt_ak4524_unlock
342 	}
343 };
344 
345 static struct snd_ak4xxx_private akm_ews88mt_priv __devinitdata = {
346 	.caddr = 2,
347 	.cif = 1, /* CIF high */
348 	.data_mask = ICE1712_EWS88_SERIAL_DATA,
349 	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
350 	.cs_mask = 0,
351 	.cs_addr = 0,
352 	.cs_none = 0, /* no chip select on gpio */
353 	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
354 	.mask_flags = 0,
355 };
356 
357 static akm4xxx_t akm_ewx2496 __devinitdata = {
358 	.num_adcs = 2,
359 	.num_dacs = 2,
360 	.type = SND_AK4524,
361 	.ops = {
362 		.lock = ewx2496_ak4524_lock
363 	}
364 };
365 
366 static struct snd_ak4xxx_private akm_ewx2496_priv __devinitdata = {
367 	.caddr = 2,
368 	.cif = 1, /* CIF high */
369 	.data_mask = ICE1712_EWS88_SERIAL_DATA,
370 	.clk_mask = ICE1712_EWS88_SERIAL_CLOCK,
371 	.cs_mask = ICE1712_EWX2496_AK4524_CS,
372 	.cs_addr = ICE1712_EWX2496_AK4524_CS,
373 	.cs_none = 0,
374 	.add_flags = ICE1712_EWS88_RW, /* set rw bit high */
375 	.mask_flags = 0,
376 };
377 
378 static akm4xxx_t akm_6fire __devinitdata = {
379 	.num_adcs = 6,
380 	.num_dacs = 6,
381 	.type = SND_AK4524,
382 	.ops = {
383 		.lock = dmx6fire_ak4524_lock
384 	}
385 };
386 
387 static struct snd_ak4xxx_private akm_6fire_priv __devinitdata = {
388 	.caddr = 2,
389 	.cif = 1, /* CIF high */
390 	.data_mask = ICE1712_6FIRE_SERIAL_DATA,
391 	.clk_mask = ICE1712_6FIRE_SERIAL_CLOCK,
392 	.cs_mask = 0,
393 	.cs_addr = 0, /* set later */
394 	.cs_none = 0,
395 	.add_flags = ICE1712_6FIRE_RW, /* set rw bit high */
396 	.mask_flags = 0,
397 };
398 
399 /*
400  * initialize the chip
401  */
402 
403 /* 6fire specific */
404 #define PCF9554_REG_INPUT      0
405 #define PCF9554_REG_OUTPUT     1
406 #define PCF9554_REG_POLARITY   2
407 #define PCF9554_REG_CONFIG     3
408 
409 static int snd_ice1712_6fire_write_pca(ice1712_t *ice, unsigned char reg, unsigned char data);
410 
411 static int __devinit snd_ice1712_ews_init(ice1712_t *ice)
412 {
413 	int err;
414 	akm4xxx_t *ak;
415 
416 	/* set the analog DACs */
417 	switch (ice->eeprom.subvendor) {
418 	case ICE1712_SUBDEVICE_EWX2496:
419 		ice->num_total_dacs = 2;
420 		ice->num_total_adcs = 2;
421 		break;
422 	case ICE1712_SUBDEVICE_EWS88MT:
423 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
424 	case ICE1712_SUBDEVICE_PHASE88:
425 		ice->num_total_dacs = 8;
426 		ice->num_total_adcs = 8;
427 		break;
428 	case ICE1712_SUBDEVICE_EWS88D:
429 		/* Note: not analog but ADAT I/O */
430 		ice->num_total_dacs = 8;
431 		ice->num_total_adcs = 8;
432 		break;
433 	case ICE1712_SUBDEVICE_DMX6FIRE:
434 		ice->num_total_dacs = 6;
435 		ice->num_total_adcs = 6;
436 		break;
437 	}
438 
439 	/* create i2c */
440 	if ((err = snd_i2c_bus_create(ice->card, "ICE1712 GPIO 1", NULL, &ice->i2c)) < 0) {
441 		snd_printk("unable to create I2C bus\n");
442 		return err;
443 	}
444 	ice->i2c->private_data = ice;
445 	ice->i2c->hw_ops.bit = &snd_ice1712_ewx_cs8427_bit_ops;
446 
447 	/* create i2c devices */
448 	switch (ice->eeprom.subvendor) {
449 	case ICE1712_SUBDEVICE_DMX6FIRE:
450 		if ((err = snd_i2c_device_create(ice->i2c, "PCF9554", ICE1712_6FIRE_PCF9554_ADDR, &ice->spec.i2cdevs[EWS_I2C_6FIRE])) < 0) {
451 			snd_printk("PCF9554 initialization failed\n");
452 			return err;
453 		}
454 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_CONFIG, 0x80);
455 		break;
456 	case ICE1712_SUBDEVICE_EWS88MT:
457 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
458 	case ICE1712_SUBDEVICE_PHASE88:
459 		if ((err = snd_i2c_device_create(ice->i2c, "CS8404", ICE1712_EWS88MT_CS8404_ADDR, &ice->spec.i2cdevs[EWS_I2C_CS8404])) < 0)
460 			return err;
461 		if ((err = snd_i2c_device_create(ice->i2c, "PCF8574 (1st)", ICE1712_EWS88MT_INPUT_ADDR, &ice->spec.i2cdevs[EWS_I2C_PCF1])) < 0)
462 			return err;
463 		if ((err = snd_i2c_device_create(ice->i2c, "PCF8574 (2nd)", ICE1712_EWS88MT_OUTPUT_ADDR, &ice->spec.i2cdevs[EWS_I2C_PCF2])) < 0)
464 			return err;
465 		/* Check if the front module is connected */
466 		if ((err = snd_ice1712_ews88mt_chip_select(ice, 0x0f)) < 0)
467 			return err;
468 		break;
469 	case ICE1712_SUBDEVICE_EWS88D:
470 		if ((err = snd_i2c_device_create(ice->i2c, "PCF8575", ICE1712_EWS88D_PCF_ADDR, &ice->spec.i2cdevs[EWS_I2C_88D])) < 0)
471 			return err;
472 		break;
473 	}
474 
475 	/* set up SPDIF interface */
476 	switch (ice->eeprom.subvendor) {
477 	case ICE1712_SUBDEVICE_EWX2496:
478 		if ((err = snd_ice1712_init_cs8427(ice, CS8427_BASE_ADDR)) < 0)
479 			return err;
480 		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
481 		break;
482 	case ICE1712_SUBDEVICE_DMX6FIRE:
483 		if ((err = snd_ice1712_init_cs8427(ice, ICE1712_6FIRE_CS8427_ADDR)) < 0)
484 			return err;
485 		snd_cs8427_reg_write(ice->cs8427, CS8427_REG_RECVERRMASK, CS8427_UNLOCK | CS8427_CONF | CS8427_BIP | CS8427_PAR);
486 		break;
487 	case ICE1712_SUBDEVICE_EWS88MT:
488 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
489 	case ICE1712_SUBDEVICE_PHASE88:
490 	case ICE1712_SUBDEVICE_EWS88D:
491 		/* set up CS8404 */
492 		ice->spdif.ops.open = ews88_open_spdif;
493 		ice->spdif.ops.setup_rate = ews88_setup_spdif;
494 		ice->spdif.ops.default_get = ews88_spdif_default_get;
495 		ice->spdif.ops.default_put = ews88_spdif_default_put;
496 		ice->spdif.ops.stream_get = ews88_spdif_stream_get;
497 		ice->spdif.ops.stream_put = ews88_spdif_stream_put;
498 		/* Set spdif defaults */
499 		snd_ice1712_ews_cs8404_spdif_write(ice, ice->spdif.cs8403_bits);
500 		break;
501 	}
502 
503 	/* no analog? */
504 	switch (ice->eeprom.subvendor) {
505 	case ICE1712_SUBDEVICE_EWS88D:
506 		return 0;
507 	}
508 
509 	/* analog section */
510 	ak = ice->akm = kmalloc(sizeof(akm4xxx_t), GFP_KERNEL);
511 	if (! ak)
512 		return -ENOMEM;
513 	ice->akm_codecs = 1;
514 
515 	switch (ice->eeprom.subvendor) {
516 	case ICE1712_SUBDEVICE_EWS88MT:
517 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
518 	case ICE1712_SUBDEVICE_PHASE88:
519 		err = snd_ice1712_akm4xxx_init(ak, &akm_ews88mt, &akm_ews88mt_priv, ice);
520 		break;
521 	case ICE1712_SUBDEVICE_EWX2496:
522 		err = snd_ice1712_akm4xxx_init(ak, &akm_ewx2496, &akm_ewx2496_priv, ice);
523 		break;
524 	case ICE1712_SUBDEVICE_DMX6FIRE:
525 		err = snd_ice1712_akm4xxx_init(ak, &akm_6fire, &akm_6fire_priv, ice);
526 		break;
527 	default:
528 		err = 0;
529 	}
530 
531 	return err;
532 }
533 
534 /*
535  * EWX 24/96 specific controls
536  */
537 
538 /* i/o sensitivity - this callback is shared among other devices, too */
539 static int snd_ice1712_ewx_io_sense_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo){
540 
541 	static char *texts[2] = {
542 		"+4dBu", "-10dBV",
543 	};
544 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
545 	uinfo->count = 1;
546 	uinfo->value.enumerated.items = 2;
547 	if (uinfo->value.enumerated.item >= 2)
548 		uinfo->value.enumerated.item = 1;
549 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
550 	return 0;
551 }
552 
553 static int snd_ice1712_ewx_io_sense_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
554 {
555 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
556 	unsigned char mask = kcontrol->private_value & 0xff;
557 
558 	snd_ice1712_save_gpio_status(ice);
559 	ucontrol->value.enumerated.item[0] = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & mask ? 1 : 0;
560 	snd_ice1712_restore_gpio_status(ice);
561 	return 0;
562 }
563 
564 static int snd_ice1712_ewx_io_sense_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
565 {
566 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
567 	unsigned char mask = kcontrol->private_value & 0xff;
568 	int val, nval;
569 
570 	if (kcontrol->private_value & (1 << 31))
571 		return -EPERM;
572 	nval = ucontrol->value.enumerated.item[0] ? mask : 0;
573 	snd_ice1712_save_gpio_status(ice);
574 	val = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
575 	nval |= val & ~mask;
576 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, nval);
577 	snd_ice1712_restore_gpio_status(ice);
578 	return val != nval;
579 }
580 
581 static snd_kcontrol_new_t snd_ice1712_ewx2496_controls[] __devinitdata = {
582 	{
583 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
584 		.name = "Input Sensitivity Switch",
585 		.info = snd_ice1712_ewx_io_sense_info,
586 		.get = snd_ice1712_ewx_io_sense_get,
587 		.put = snd_ice1712_ewx_io_sense_put,
588 		.private_value = ICE1712_EWX2496_AIN_SEL,
589 	},
590 	{
591 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
592 		.name = "Output Sensitivity Switch",
593 		.info = snd_ice1712_ewx_io_sense_info,
594 		.get = snd_ice1712_ewx_io_sense_get,
595 		.put = snd_ice1712_ewx_io_sense_put,
596 		.private_value = ICE1712_EWX2496_AOUT_SEL,
597 	},
598 };
599 
600 
601 /*
602  * EWS88MT specific controls
603  */
604 /* analog output sensitivity;; address 0x48 bit 6 */
605 static int snd_ice1712_ews88mt_output_sense_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
606 {
607 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
608 	unsigned char data;
609 
610 	snd_i2c_lock(ice->i2c);
611 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
612 		snd_i2c_unlock(ice->i2c);
613 		return -EIO;
614 	}
615 	snd_i2c_unlock(ice->i2c);
616 	ucontrol->value.enumerated.item[0] = data & ICE1712_EWS88MT_OUTPUT_SENSE ? 1 : 0; /* high = -10dBV, low = +4dBu */
617 	return 0;
618 }
619 
620 /* analog output sensitivity;; address 0x48 bit 6 */
621 static int snd_ice1712_ews88mt_output_sense_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
622 {
623 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
624 	unsigned char data, ndata;
625 
626 	snd_i2c_lock(ice->i2c);
627 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_PCF2], &data, 1) != 1) {
628 		snd_i2c_unlock(ice->i2c);
629 		return -EIO;
630 	}
631 	ndata = (data & ~ICE1712_EWS88MT_OUTPUT_SENSE) | (ucontrol->value.enumerated.item[0] ? ICE1712_EWS88MT_OUTPUT_SENSE : 0);
632 	if (ndata != data && snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_PCF2], &ndata, 1) != 1) {
633 		snd_i2c_unlock(ice->i2c);
634 		return -EIO;
635 	}
636 	snd_i2c_unlock(ice->i2c);
637 	return ndata != data;
638 }
639 
640 /* analog input sensitivity; address 0x46 */
641 static int snd_ice1712_ews88mt_input_sense_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
642 {
643 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
644 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
645 	unsigned char data;
646 
647 	snd_assert(channel >= 0 && channel <= 7, return 0);
648 	snd_i2c_lock(ice->i2c);
649 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
650 		snd_i2c_unlock(ice->i2c);
651 		return -EIO;
652 	}
653 	/* reversed; high = +4dBu, low = -10dBV */
654 	ucontrol->value.enumerated.item[0] = data & (1 << channel) ? 0 : 1;
655 	snd_i2c_unlock(ice->i2c);
656 	return 0;
657 }
658 
659 /* analog output sensitivity; address 0x46 */
660 static int snd_ice1712_ews88mt_input_sense_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
661 {
662 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
663 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
664 	unsigned char data, ndata;
665 
666 	snd_assert(channel >= 0 && channel <= 7, return 0);
667 	snd_i2c_lock(ice->i2c);
668 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
669 		snd_i2c_unlock(ice->i2c);
670 		return -EIO;
671 	}
672 	ndata = (data & ~(1 << channel)) | (ucontrol->value.enumerated.item[0] ? 0 : (1 << channel));
673 	if (ndata != data && snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_PCF1], &ndata, 1) != 1) {
674 		snd_i2c_unlock(ice->i2c);
675 		return -EIO;
676 	}
677 	snd_i2c_unlock(ice->i2c);
678 	return ndata != data;
679 }
680 
681 static snd_kcontrol_new_t snd_ice1712_ews88mt_input_sense __devinitdata = {
682 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
683 	.name = "Input Sensitivity Switch",
684 	.info = snd_ice1712_ewx_io_sense_info,
685 	.get = snd_ice1712_ews88mt_input_sense_get,
686 	.put = snd_ice1712_ews88mt_input_sense_put,
687 	.count = 8,
688 };
689 
690 static snd_kcontrol_new_t snd_ice1712_ews88mt_output_sense __devinitdata = {
691 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
692 	.name = "Output Sensitivity Switch",
693 	.info = snd_ice1712_ewx_io_sense_info,
694 	.get = snd_ice1712_ews88mt_output_sense_get,
695 	.put = snd_ice1712_ews88mt_output_sense_put,
696 };
697 
698 
699 /*
700  * EWS88D specific controls
701  */
702 
703 static int snd_ice1712_ews88d_control_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
704 {
705 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
706 	uinfo->count = 1;
707 	uinfo->value.integer.min = 0;
708 	uinfo->value.integer.max = 1;
709 	return 0;
710 }
711 
712 static int snd_ice1712_ews88d_control_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
713 {
714 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
715 	int shift = kcontrol->private_value & 0xff;
716 	int invert = (kcontrol->private_value >> 8) & 1;
717 	unsigned char data[2];
718 
719 	snd_i2c_lock(ice->i2c);
720 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_88D], data, 2) != 2) {
721 		snd_i2c_unlock(ice->i2c);
722 		return -EIO;
723 	}
724 	snd_i2c_unlock(ice->i2c);
725 	data[0] = (data[shift >> 3] >> (shift & 7)) & 0x01;
726 	if (invert)
727 		data[0] ^= 0x01;
728 	ucontrol->value.integer.value[0] = data[0];
729 	return 0;
730 }
731 
732 static int snd_ice1712_ews88d_control_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
733 {
734 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
735 	int shift = kcontrol->private_value & 0xff;
736 	int invert = (kcontrol->private_value >> 8) & 1;
737 	unsigned char data[2], ndata[2];
738 	int change;
739 
740 	snd_i2c_lock(ice->i2c);
741 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_88D], data, 2) != 2) {
742 		snd_i2c_unlock(ice->i2c);
743 		return -EIO;
744 	}
745 	ndata[shift >> 3] = data[shift >> 3] & ~(1 << (shift & 7));
746 	if (invert) {
747 		if (! ucontrol->value.integer.value[0])
748 			ndata[shift >> 3] |= (1 << (shift & 7));
749 	} else {
750 		if (ucontrol->value.integer.value[0])
751 			ndata[shift >> 3] |= (1 << (shift & 7));
752 	}
753 	change = (data[shift >> 3] != ndata[shift >> 3]);
754 	if (change && snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_88D], data, 2) != 2) {
755 		snd_i2c_unlock(ice->i2c);
756 		return -EIO;
757 	}
758 	snd_i2c_unlock(ice->i2c);
759 	return change;
760 }
761 
762 #define EWS88D_CONTROL(xiface, xname, xshift, xinvert, xaccess) \
763 { .iface = xiface,\
764   .name = xname,\
765   .access = xaccess,\
766   .info = snd_ice1712_ews88d_control_info,\
767   .get = snd_ice1712_ews88d_control_get,\
768   .put = snd_ice1712_ews88d_control_put,\
769   .private_value = xshift | (xinvert << 8),\
770 }
771 
772 static snd_kcontrol_new_t snd_ice1712_ews88d_controls[] __devinitdata = {
773 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "IEC958 Input Optical", 0, 1, 0), /* inverted */
774 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Output Optical", 1, 0, 0),
775 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT External Master Clock", 2, 0, 0),
776 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "Enable ADAT", 3, 0, 0),
777 	EWS88D_CONTROL(SNDRV_CTL_ELEM_IFACE_MIXER, "ADAT Through", 4, 1, 0),
778 };
779 
780 
781 /*
782  * DMX 6Fire specific controls
783  */
784 
785 static int snd_ice1712_6fire_read_pca(ice1712_t *ice, unsigned char reg)
786 {
787 	unsigned char byte;
788 	snd_i2c_lock(ice->i2c);
789 	byte = reg;
790 	snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_6FIRE], &byte, 1);
791 	byte = 0;
792 	if (snd_i2c_readbytes(ice->spec.i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
793 		snd_i2c_unlock(ice->i2c);
794 		printk("cannot read pca\n");
795 		return -EIO;
796 	}
797 	snd_i2c_unlock(ice->i2c);
798 	return byte;
799 }
800 
801 static int snd_ice1712_6fire_write_pca(ice1712_t *ice, unsigned char reg, unsigned char data)
802 {
803 	unsigned char bytes[2];
804 	snd_i2c_lock(ice->i2c);
805 	bytes[0] = reg;
806 	bytes[1] = data;
807 	if (snd_i2c_sendbytes(ice->spec.i2cdevs[EWS_I2C_6FIRE], bytes, 2) != 2) {
808 		snd_i2c_unlock(ice->i2c);
809 		return -EIO;
810 	}
811 	snd_i2c_unlock(ice->i2c);
812 	return 0;
813 }
814 
815 static int snd_ice1712_6fire_control_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
816 {
817 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
818 	uinfo->count = 1;
819 	uinfo->value.integer.min = 0;
820 	uinfo->value.integer.max = 1;
821 	return 0;
822 }
823 
824 static int snd_ice1712_6fire_control_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
825 {
826 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
827 	int shift = kcontrol->private_value & 0xff;
828 	int invert = (kcontrol->private_value >> 8) & 1;
829 	int data;
830 
831 	if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 0)
832 		return data;
833 	data = (data >> shift) & 1;
834 	if (invert)
835 		data ^= 1;
836 	ucontrol->value.integer.value[0] = data;
837 	return 0;
838 }
839 
840 static int snd_ice1712_6fire_control_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
841 {
842 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
843 	int shift = kcontrol->private_value & 0xff;
844 	int invert = (kcontrol->private_value >> 8) & 1;
845 	int data, ndata;
846 
847 	if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 0)
848 		return data;
849 	ndata = data & ~(1 << shift);
850 	if (ucontrol->value.integer.value[0])
851 		ndata |= (1 << shift);
852 	if (invert)
853 		ndata ^= (1 << shift);
854 	if (data != ndata) {
855 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
856 		return 1;
857 	}
858 	return 0;
859 }
860 
861 static int snd_ice1712_6fire_select_input_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
862 {
863 	static char *texts[4] = {
864 		"Internal", "Front Input", "Rear Input", "Wave Table"
865 	};
866 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
867 	uinfo->count = 1;
868 	uinfo->value.enumerated.items = 4;
869 	if (uinfo->value.enumerated.item >= 4)
870 		uinfo->value.enumerated.item = 1;
871 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
872 	return 0;
873 }
874 
875 static int snd_ice1712_6fire_select_input_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
876 {
877 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
878 	int data;
879 
880 	if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 0)
881 		return data;
882 	ucontrol->value.integer.value[0] = data & 3;
883 	return 0;
884 }
885 
886 static int snd_ice1712_6fire_select_input_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
887 {
888 	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
889 	int data, ndata;
890 
891 	if ((data = snd_ice1712_6fire_read_pca(ice, PCF9554_REG_OUTPUT)) < 0)
892 		return data;
893 	ndata = data & ~3;
894 	ndata |= (ucontrol->value.integer.value[0] & 3);
895 	if (data != ndata) {
896 		snd_ice1712_6fire_write_pca(ice, PCF9554_REG_OUTPUT, (unsigned char)ndata);
897 		return 1;
898 	}
899 	return 0;
900 }
901 
902 
903 #define DMX6FIRE_CONTROL(xname, xshift, xinvert) \
904 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
905   .name = xname,\
906   .info = snd_ice1712_6fire_control_info,\
907   .get = snd_ice1712_6fire_control_get,\
908   .put = snd_ice1712_6fire_control_put,\
909   .private_value = xshift | (xinvert << 8),\
910 }
911 
912 static snd_kcontrol_new_t snd_ice1712_6fire_controls[] __devinitdata = {
913 	{
914 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
915 		.name = "Analog Input Select",
916 		.info = snd_ice1712_6fire_select_input_info,
917 		.get = snd_ice1712_6fire_select_input_get,
918 		.put = snd_ice1712_6fire_select_input_put,
919 	},
920 	DMX6FIRE_CONTROL("Front Digital Input Switch", 2, 0),
921 	// DMX6FIRE_CONTROL("Master Clock Select", 3, 0),
922 	DMX6FIRE_CONTROL("Optical Digital Input Switch", 4, 0),
923 	DMX6FIRE_CONTROL("Phono Analog Input Switch", 5, 0),
924 	DMX6FIRE_CONTROL("Breakbox LED", 6, 0),
925 };
926 
927 
928 static int __devinit snd_ice1712_ews_add_controls(ice1712_t *ice)
929 {
930 	unsigned int idx;
931 	int err;
932 
933 	/* all terratec cards have spdif, but cs8427 module builds it's own controls */
934 	if (ice->cs8427 == NULL) {
935 		err = snd_ice1712_spdif_build_controls(ice);
936 		if (err < 0)
937 			return err;
938 	}
939 
940 	/* ak4524 controls */
941 	switch (ice->eeprom.subvendor) {
942 	case ICE1712_SUBDEVICE_EWX2496:
943 	case ICE1712_SUBDEVICE_EWS88MT:
944 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
945 	case ICE1712_SUBDEVICE_PHASE88:
946 	case ICE1712_SUBDEVICE_DMX6FIRE:
947 		err = snd_ice1712_akm4xxx_build_controls(ice);
948 		if (err < 0)
949 			return err;
950 		break;
951 	}
952 
953 	/* card specific controls */
954 	switch (ice->eeprom.subvendor) {
955 	case ICE1712_SUBDEVICE_EWX2496:
956 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ewx2496_controls); idx++) {
957 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ewx2496_controls[idx], ice));
958 			if (err < 0)
959 				return err;
960 		}
961 		break;
962 	case ICE1712_SUBDEVICE_EWS88MT:
963 	case ICE1712_SUBDEVICE_EWS88MT_NEW:
964 	case ICE1712_SUBDEVICE_PHASE88:
965 		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_input_sense, ice));
966 		if (err < 0)
967 			return err;
968 		err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88mt_output_sense, ice));
969 		if (err < 0)
970 			return err;
971 		break;
972 	case ICE1712_SUBDEVICE_EWS88D:
973 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_ews88d_controls); idx++) {
974 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_ews88d_controls[idx], ice));
975 			if (err < 0)
976 				return err;
977 		}
978 		break;
979 	case ICE1712_SUBDEVICE_DMX6FIRE:
980 		for (idx = 0; idx < ARRAY_SIZE(snd_ice1712_6fire_controls); idx++) {
981 			err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_6fire_controls[idx], ice));
982 			if (err < 0)
983 				return err;
984 		}
985 		break;
986 	}
987 	return 0;
988 }
989 
990 
991 /* entry point */
992 struct snd_ice1712_card_info snd_ice1712_ews_cards[] __devinitdata = {
993 	{
994 		.subvendor = ICE1712_SUBDEVICE_EWX2496,
995 		.name = "TerraTec EWX24/96",
996 		.model = "ewx2496",
997 		.chip_init = snd_ice1712_ews_init,
998 		.build_controls = snd_ice1712_ews_add_controls,
999 	},
1000 	{
1001 		.subvendor = ICE1712_SUBDEVICE_EWS88MT,
1002 		.name = "TerraTec EWS88MT",
1003 		.model = "ews88mt",
1004 		.chip_init = snd_ice1712_ews_init,
1005 		.build_controls = snd_ice1712_ews_add_controls,
1006 	},
1007 	{
1008 		.subvendor = ICE1712_SUBDEVICE_EWS88MT_NEW,
1009 		.name = "TerraTec EWS88MT",
1010 		.model = "ews88mt_new",
1011 		.chip_init = snd_ice1712_ews_init,
1012 		.build_controls = snd_ice1712_ews_add_controls,
1013 	},
1014 	{
1015 		.subvendor = ICE1712_SUBDEVICE_PHASE88,
1016 		.name = "TerraTec Phase88",
1017 		.model = "phase88",
1018 		.chip_init = snd_ice1712_ews_init,
1019 		.build_controls = snd_ice1712_ews_add_controls,
1020 	},
1021 	{
1022 		.subvendor = ICE1712_SUBDEVICE_EWS88D,
1023 		.name = "TerraTec EWS88D",
1024 		.model = "ews88d",
1025 		.chip_init = snd_ice1712_ews_init,
1026 		.build_controls = snd_ice1712_ews_add_controls,
1027 	},
1028 	{
1029 		.subvendor = ICE1712_SUBDEVICE_DMX6FIRE,
1030 		.name = "TerraTec DMX6Fire",
1031 		.model = "dmx6fire",
1032 		.chip_init = snd_ice1712_ews_init,
1033 		.build_controls = snd_ice1712_ews_add_controls,
1034 	},
1035 	{ } /* terminator */
1036 };
1037