1/*
2 *   ALSA driver for ICEnsemble ICE1712 (Envy24)
3 *
4 *   Lowlevel functions for M-Audio Revolution 7.1
5 *
6 *	Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
7 *
8 *   This program is free software; you can redistribute it and/or modify
9 *   it under the terms of the GNU General Public License as published by
10 *   the Free Software Foundation; either version 2 of the License, or
11 *   (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21 *
22 */
23
24#include <sound/driver.h>
25#include <asm/io.h>
26#include <linux/delay.h>
27#include <linux/interrupt.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <sound/core.h>
31
32#include "ice1712.h"
33#include "envy24ht.h"
34#include "revo.h"
35
36static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
37{
38	/* assert PRST# to converters; MT05 bit 7 */
39	outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
40	mdelay(5);
41	/* deassert PRST# */
42	outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
43}
44
45/*
46 * change the rate of envy24HT, AK4355 and AK4381
47 */
48static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
49{
50	unsigned char old, tmp, dfs;
51	int reg, shift;
52
53	if (rate == 0)	/* no hint - S/PDIF input is master, simply return */
54		return;
55
56	/* adjust DFS on codecs */
57	if (rate > 96000)
58		dfs = 2;
59	else if (rate > 48000)
60		dfs = 1;
61	else
62		dfs = 0;
63
64	if (ak->type == SND_AK4355 || ak->type == SND_AK4358) {
65		reg = 2;
66		shift = 4;
67	} else {
68		reg = 1;
69		shift = 3;
70	}
71	tmp = snd_akm4xxx_get(ak, 0, reg);
72	old = (tmp >> shift) & 0x03;
73	if (old == dfs)
74		return;
75
76	/* reset DFS */
77	snd_akm4xxx_reset(ak, 1);
78	tmp = snd_akm4xxx_get(ak, 0, reg);
79	tmp &= ~(0x03 << shift);
80	tmp |= dfs << shift;
81	// snd_akm4xxx_write(ak, 0, reg, tmp);
82	snd_akm4xxx_set(ak, 0, reg, tmp); /* the value is written in reset(0) */
83	snd_akm4xxx_reset(ak, 0);
84}
85
86/*
87 * I2C access to the PT2258 volume controller on GPIO 6/7 (Revolution 5.1)
88 */
89
90static void revo_i2c_start(struct snd_i2c_bus *bus)
91{
92	struct snd_ice1712 *ice = bus->private_data;
93	snd_ice1712_save_gpio_status(ice);
94}
95
96static void revo_i2c_stop(struct snd_i2c_bus *bus)
97{
98	struct snd_ice1712 *ice = bus->private_data;
99	snd_ice1712_restore_gpio_status(ice);
100}
101
102static void revo_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
103{
104	struct snd_ice1712 *ice = bus->private_data;
105	unsigned int mask, val;
106
107	val = 0;
108	if (clock)
109		val |= VT1724_REVO_I2C_CLOCK;	/* write SCL */
110	if (data)
111		val |= VT1724_REVO_I2C_DATA;	/* write SDA */
112	mask = VT1724_REVO_I2C_CLOCK | VT1724_REVO_I2C_DATA;
113	ice->gpio.direction &= ~mask;
114	ice->gpio.direction |= val;
115	snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
116	snd_ice1712_gpio_set_mask(ice, ~mask);
117}
118
119static void revo_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
120{
121	struct snd_ice1712 *ice = bus->private_data;
122	unsigned int val = 0;
123
124	if (clk)
125		val |= VT1724_REVO_I2C_CLOCK;
126	if (data)
127		val |= VT1724_REVO_I2C_DATA;
128	snd_ice1712_gpio_write_bits(ice,
129				    VT1724_REVO_I2C_DATA |
130				    VT1724_REVO_I2C_CLOCK, val);
131	udelay(5);
132}
133
134static int revo_i2c_getdata(struct snd_i2c_bus *bus, int ack)
135{
136	struct snd_ice1712 *ice = bus->private_data;
137	int bit;
138
139	if (ack)
140		udelay(5);
141	bit = snd_ice1712_gpio_read_bits(ice, VT1724_REVO_I2C_DATA) ? 1 : 0;
142	return bit;
143}
144
145static struct snd_i2c_bit_ops revo51_bit_ops = {
146	.start = revo_i2c_start,
147	.stop = revo_i2c_stop,
148	.direction = revo_i2c_direction,
149	.setlines = revo_i2c_setlines,
150	.getdata = revo_i2c_getdata,
151};
152
153static int revo51_i2c_init(struct snd_ice1712 *ice,
154			   struct snd_pt2258 *pt)
155{
156	int err;
157
158	/* create the I2C bus */
159	err = snd_i2c_bus_create(ice->card, "ICE1724 GPIO6", NULL, &ice->i2c);
160	if (err < 0)
161		return err;
162
163	ice->i2c->private_data = ice;
164	ice->i2c->hw_ops.bit = &revo51_bit_ops;
165
166	/* create the I2C device */
167	err = snd_i2c_device_create(ice->i2c, "PT2258", 0x40,
168				    &ice->spec.revo51.dev);
169	if (err < 0)
170		return err;
171
172	pt->card = ice->card;
173	pt->i2c_bus = ice->i2c;
174	pt->i2c_dev = ice->spec.revo51.dev;
175	ice->spec.revo51.pt2258 = pt;
176
177	snd_pt2258_reset(pt);
178
179	return 0;
180}
181
182/*
183 * initialize the chips on M-Audio Revolution cards
184 */
185
186#define AK_DAC(xname,xch) { .name = xname, .num_channels = xch }
187
188static const struct snd_akm4xxx_dac_channel revo71_front[] = {
189	AK_DAC("PCM Playback Volume", 2)
190};
191
192static const struct snd_akm4xxx_dac_channel revo71_surround[] = {
193	AK_DAC("PCM Center Playback Volume", 1),
194	AK_DAC("PCM LFE Playback Volume", 1),
195	AK_DAC("PCM Side Playback Volume", 2),
196	AK_DAC("PCM Rear Playback Volume", 2),
197};
198
199static const struct snd_akm4xxx_dac_channel revo51_dac[] = {
200	AK_DAC("PCM Playback Volume", 2),
201	AK_DAC("PCM Center Playback Volume", 1),
202	AK_DAC("PCM LFE Playback Volume", 1),
203	AK_DAC("PCM Rear Playback Volume", 2),
204};
205
206static const char *revo51_adc_input_names[] = {
207	"Mic",
208	"Line",
209	"CD",
210	NULL
211};
212
213static const struct snd_akm4xxx_adc_channel revo51_adc[] = {
214	{
215		.name = "PCM Capture Volume",
216		.switch_name = "PCM Capture Switch",
217		.num_channels = 2,
218		.input_names = revo51_adc_input_names
219	},
220};
221
222static struct snd_akm4xxx akm_revo_front __devinitdata = {
223	.type = SND_AK4381,
224	.num_dacs = 2,
225	.ops = {
226		.set_rate_val = revo_set_rate_val
227	},
228	.dac_info = revo71_front,
229};
230
231static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
232	.caddr = 1,
233	.cif = 0,
234	.data_mask = VT1724_REVO_CDOUT,
235	.clk_mask = VT1724_REVO_CCLK,
236	.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
237	.cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
238	.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
239	.add_flags = VT1724_REVO_CCLK, /* high at init */
240	.mask_flags = 0,
241};
242
243static struct snd_akm4xxx akm_revo_surround __devinitdata = {
244	.type = SND_AK4355,
245	.idx_offset = 1,
246	.num_dacs = 6,
247	.ops = {
248		.set_rate_val = revo_set_rate_val
249	},
250	.dac_info = revo71_surround,
251};
252
253static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
254	.caddr = 3,
255	.cif = 0,
256	.data_mask = VT1724_REVO_CDOUT,
257	.clk_mask = VT1724_REVO_CCLK,
258	.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
259	.cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
260	.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
261	.add_flags = VT1724_REVO_CCLK, /* high at init */
262	.mask_flags = 0,
263};
264
265static struct snd_akm4xxx akm_revo51 __devinitdata = {
266	.type = SND_AK4358,
267	.num_dacs = 6,
268	.ops = {
269		.set_rate_val = revo_set_rate_val
270	},
271	.dac_info = revo51_dac,
272};
273
274static struct snd_ak4xxx_private akm_revo51_priv __devinitdata = {
275	.caddr = 2,
276	.cif = 0,
277	.data_mask = VT1724_REVO_CDOUT,
278	.clk_mask = VT1724_REVO_CCLK,
279	.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
280	.cs_addr = VT1724_REVO_CS1,
281	.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
282	.add_flags = VT1724_REVO_CCLK, /* high at init */
283	.mask_flags = 0,
284};
285
286static struct snd_akm4xxx akm_revo51_adc __devinitdata = {
287	.type = SND_AK5365,
288	.num_adcs = 2,
289	.adc_info = revo51_adc,
290};
291
292static struct snd_ak4xxx_private akm_revo51_adc_priv __devinitdata = {
293	.caddr = 2,
294	.cif = 0,
295	.data_mask = VT1724_REVO_CDOUT,
296	.clk_mask = VT1724_REVO_CCLK,
297	.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
298	.cs_addr = VT1724_REVO_CS0,
299	.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
300	.add_flags = VT1724_REVO_CCLK, /* high at init */
301	.mask_flags = 0,
302};
303
304static struct snd_pt2258 ptc_revo51_volume;
305
306/* AK4358 for AP192 DAC, AK5385A for ADC */
307static void ap192_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
308{
309	struct snd_ice1712 *ice = ak->private_data[0];
310
311	revo_set_rate_val(ak, rate);
312
313	/* reset DFS pin of AK5385A for ADC, too */
314	/* DFS0 (pin 18) -- GPIO10 pin 77 */
315	snd_ice1712_save_gpio_status(ice);
316	snd_ice1712_gpio_write_bits(ice, 1 << 10,
317				    rate > 48000 ? (1 << 10) : 0);
318	snd_ice1712_restore_gpio_status(ice);
319}
320
321static const struct snd_akm4xxx_dac_channel ap192_dac[] = {
322	AK_DAC("PCM Playback Volume", 2)
323};
324
325static struct snd_akm4xxx akm_ap192 __devinitdata = {
326	.type = SND_AK4358,
327	.num_dacs = 2,
328	.ops = {
329		.set_rate_val = ap192_set_rate_val
330	},
331	.dac_info = ap192_dac,
332};
333
334static struct snd_ak4xxx_private akm_ap192_priv __devinitdata = {
335	.caddr = 2,
336	.cif = 0,
337	.data_mask = VT1724_REVO_CDOUT,
338	.clk_mask = VT1724_REVO_CCLK,
339	.cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS3,
340	.cs_addr = VT1724_REVO_CS3,
341	.cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS3,
342	.add_flags = VT1724_REVO_CCLK, /* high at init */
343	.mask_flags = 0,
344};
345
346
347#ifdef BUILD_AK4114_AP192
348/* AK4114 support on Audiophile 192 */
349/* CDTO (pin 32) -- GPIO2 pin 52
350 * CDTI (pin 33) -- GPIO3 pin 53 (shared with AK4358)
351 * CCLK (pin 34) -- GPIO1 pin 51 (shared with AK4358)
352 * CSN  (pin 35) -- GPIO7 pin 59
353 */
354#define AK4114_ADDR	0x00
355
356static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
357		       unsigned int data, int idx)
358{
359	for (; idx >= 0; idx--) {
360		/* drop clock */
361		gpio &= ~VT1724_REVO_CCLK;
362		snd_ice1712_gpio_write(ice, gpio);
363		udelay(1);
364		/* set data */
365		if (data & (1 << idx))
366			gpio |= VT1724_REVO_CDOUT;
367		else
368			gpio &= ~VT1724_REVO_CDOUT;
369		snd_ice1712_gpio_write(ice, gpio);
370		udelay(1);
371		/* raise clock */
372		gpio |= VT1724_REVO_CCLK;
373		snd_ice1712_gpio_write(ice, gpio);
374		udelay(1);
375	}
376}
377
378static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
379			       int idx)
380{
381	unsigned char data = 0;
382
383	for (; idx >= 0; idx--) {
384		/* drop clock */
385		gpio &= ~VT1724_REVO_CCLK;
386		snd_ice1712_gpio_write(ice, gpio);
387		udelay(1);
388		/* read data */
389		if (snd_ice1712_gpio_read(ice) & VT1724_REVO_CDIN)
390			data |= (1 << idx);
391		udelay(1);
392		/* raise clock */
393		gpio |= VT1724_REVO_CCLK;
394		snd_ice1712_gpio_write(ice, gpio);
395		udelay(1);
396	}
397	return data;
398}
399
400static unsigned int ap192_4wire_start(struct snd_ice1712 *ice)
401{
402	unsigned int tmp;
403
404	snd_ice1712_save_gpio_status(ice);
405	tmp = snd_ice1712_gpio_read(ice);
406	tmp |= VT1724_REVO_CCLK; /* high at init */
407	tmp |= VT1724_REVO_CS0;
408	tmp &= ~VT1724_REVO_CS3;
409	snd_ice1712_gpio_write(ice, tmp);
410	udelay(1);
411	return tmp;
412}
413
414static void ap192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
415{
416	tmp |= VT1724_REVO_CS3;
417	tmp |= VT1724_REVO_CS0;
418	snd_ice1712_gpio_write(ice, tmp);
419	udelay(1);
420	snd_ice1712_restore_gpio_status(ice);
421}
422
423static void ap192_ak4114_write(void *private_data, unsigned char addr,
424			       unsigned char data)
425{
426	struct snd_ice1712 *ice = private_data;
427	unsigned int tmp, addrdata;
428
429	tmp = ap192_4wire_start(ice);
430	addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
431	addrdata = (addrdata << 8) | data;
432	write_data(ice, tmp, addrdata, 15);
433	ap192_4wire_finish(ice, tmp);
434}
435
436static unsigned char ap192_ak4114_read(void *private_data, unsigned char addr)
437{
438	struct snd_ice1712 *ice = private_data;
439	unsigned int tmp;
440	unsigned char data;
441
442	tmp = ap192_4wire_start(ice);
443	write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
444	data = read_data(ice, tmp, 7);
445	ap192_4wire_finish(ice, tmp);
446	return data;
447}
448
449static int __devinit ap192_ak4114_init(struct snd_ice1712 *ice)
450{
451	static const unsigned char ak4114_init_vals[] = {
452		AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
453		AK4114_DIF_I24I2S,
454		AK4114_TX1E,
455		AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
456		0,
457		0
458	};
459	static const unsigned char ak4114_init_txcsb[] = {
460		0x41, 0x02, 0x2c, 0x00, 0x00
461	};
462	struct ak4114 *ak;
463	int err;
464
465	return snd_ak4114_create(ice->card,
466				 ap192_ak4114_read,
467				 ap192_ak4114_write,
468				 ak4114_init_vals, ak4114_init_txcsb,
469				 ice, &ak);
470}
471#endif /* BUILD_AK4114_AP192 */
472
473static int __devinit revo_init(struct snd_ice1712 *ice)
474{
475	struct snd_akm4xxx *ak;
476	int err;
477
478	/* determine I2C, DACs and ADCs */
479	switch (ice->eeprom.subvendor) {
480	case VT1724_SUBDEVICE_REVOLUTION71:
481		ice->num_total_dacs = 8;
482		ice->num_total_adcs = 2;
483		ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
484		break;
485	case VT1724_SUBDEVICE_REVOLUTION51:
486		ice->num_total_dacs = 6;
487		ice->num_total_adcs = 2;
488		break;
489	case VT1724_SUBDEVICE_AUDIOPHILE192:
490		ice->num_total_dacs = 2;
491		ice->num_total_adcs = 2;
492		break;
493	default:
494		snd_BUG();
495		return -EINVAL;
496	}
497
498	/* second stage of initialization, analog parts and others */
499	ak = ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
500	if (! ak)
501		return -ENOMEM;
502	ice->akm_codecs = 2;
503	switch (ice->eeprom.subvendor) {
504	case VT1724_SUBDEVICE_REVOLUTION71:
505		ice->akm_codecs = 2;
506		if ((err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front, &akm_revo_front_priv, ice)) < 0)
507			return err;
508		if ((err = snd_ice1712_akm4xxx_init(ak + 1, &akm_revo_surround, &akm_revo_surround_priv, ice)) < 0)
509			return err;
510		/* unmute all codecs */
511		snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE, VT1724_REVO_MUTE);
512		break;
513	case VT1724_SUBDEVICE_REVOLUTION51:
514		ice->akm_codecs = 2;
515		err = snd_ice1712_akm4xxx_init(ak, &akm_revo51,
516					       &akm_revo51_priv, ice);
517		if (err < 0)
518			return err;
519		err = snd_ice1712_akm4xxx_init(ak+1, &akm_revo51_adc,
520					       &akm_revo51_adc_priv, ice);
521		if (err < 0)
522			return err;
523		err = revo51_i2c_init(ice, &ptc_revo51_volume);
524		if (err < 0)
525			return err;
526		/* unmute all codecs */
527		snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
528					    VT1724_REVO_MUTE);
529		break;
530	case VT1724_SUBDEVICE_AUDIOPHILE192:
531		ice->akm_codecs = 1;
532		err = snd_ice1712_akm4xxx_init(ak, &akm_ap192, &akm_ap192_priv,
533					       ice);
534		if (err < 0)
535			return err;
536
537		break;
538	}
539
540	return 0;
541}
542
543
544static int __devinit revo_add_controls(struct snd_ice1712 *ice)
545{
546	int err;
547
548	switch (ice->eeprom.subvendor) {
549	case VT1724_SUBDEVICE_REVOLUTION71:
550		err = snd_ice1712_akm4xxx_build_controls(ice);
551		if (err < 0)
552			return err;
553		break;
554	case VT1724_SUBDEVICE_REVOLUTION51:
555		err = snd_ice1712_akm4xxx_build_controls(ice);
556		if (err < 0)
557			return err;
558		err = snd_pt2258_build_controls(ice->spec.revo51.pt2258);
559		if (err < 0)
560			return err;
561		break;
562	case VT1724_SUBDEVICE_AUDIOPHILE192:
563		err = snd_ice1712_akm4xxx_build_controls(ice);
564		if (err < 0)
565			return err;
566#ifdef BUILD_AK4114_AP192
567		err = ap192_ak4114_init(ice);
568		if (err < 0)
569			return err;
570#endif
571		break;
572	}
573	return 0;
574}
575
576/* entry point */
577struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
578	{
579		.subvendor = VT1724_SUBDEVICE_REVOLUTION71,
580		.name = "M Audio Revolution-7.1",
581		.model = "revo71",
582		.chip_init = revo_init,
583		.build_controls = revo_add_controls,
584	},
585	{
586		.subvendor = VT1724_SUBDEVICE_REVOLUTION51,
587		.name = "M Audio Revolution-5.1",
588		.model = "revo51",
589		.chip_init = revo_init,
590		.build_controls = revo_add_controls,
591	},
592	{
593		.subvendor = VT1724_SUBDEVICE_AUDIOPHILE192,
594		.name = "M Audio Audiophile192",
595		.model = "ap192",
596		.chip_init = revo_init,
597		.build_controls = revo_add_controls,
598	},
599	{ } /* terminator */
600};
601