1/*
2 *   ALSA driver for ICEnsemble ICE1712 (Envy24)
3 *
4 *   Lowlevel functions for Hoontech STDSP24
5 *
6 *	Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
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 <linux/mutex.h>
31
32#include <sound/core.h>
33
34#include "ice1712.h"
35#include "hoontech.h"
36
37
38static void __devinit snd_ice1712_stdsp24_gpio_write(struct snd_ice1712 *ice, unsigned char byte)
39{
40	byte |= ICE1712_STDSP24_CLOCK_BIT;
41	udelay(100);
42	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
43	byte &= ~ICE1712_STDSP24_CLOCK_BIT;
44	udelay(100);
45	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
46	byte |= ICE1712_STDSP24_CLOCK_BIT;
47	udelay(100);
48	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
49}
50
51static void __devinit snd_ice1712_stdsp24_darear(struct snd_ice1712 *ice, int activate)
52{
53	mutex_lock(&ice->gpio_mutex);
54	ICE1712_STDSP24_0_DAREAR(ice->spec.hoontech.boxbits, activate);
55	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[0]);
56	mutex_unlock(&ice->gpio_mutex);
57}
58
59static void __devinit snd_ice1712_stdsp24_mute(struct snd_ice1712 *ice, int activate)
60{
61	mutex_lock(&ice->gpio_mutex);
62	ICE1712_STDSP24_3_MUTE(ice->spec.hoontech.boxbits, activate);
63	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[3]);
64	mutex_unlock(&ice->gpio_mutex);
65}
66
67static void __devinit snd_ice1712_stdsp24_insel(struct snd_ice1712 *ice, int activate)
68{
69	mutex_lock(&ice->gpio_mutex);
70	ICE1712_STDSP24_3_INSEL(ice->spec.hoontech.boxbits, activate);
71	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[3]);
72	mutex_unlock(&ice->gpio_mutex);
73}
74
75static void __devinit snd_ice1712_stdsp24_box_channel(struct snd_ice1712 *ice, int box, int chn, int activate)
76{
77	mutex_lock(&ice->gpio_mutex);
78
79	/* select box */
80	ICE1712_STDSP24_0_BOX(ice->spec.hoontech.boxbits, box);
81	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[0]);
82
83	/* prepare for write */
84	if (chn == 3)
85		ICE1712_STDSP24_2_CHN4(ice->spec.hoontech.boxbits, 0);
86	ICE1712_STDSP24_2_MIDI1(ice->spec.hoontech.boxbits, activate);
87	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
88	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[3]);
89
90	ICE1712_STDSP24_1_CHN1(ice->spec.hoontech.boxbits, 1);
91	ICE1712_STDSP24_1_CHN2(ice->spec.hoontech.boxbits, 1);
92	ICE1712_STDSP24_1_CHN3(ice->spec.hoontech.boxbits, 1);
93	ICE1712_STDSP24_2_CHN4(ice->spec.hoontech.boxbits, 1);
94	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[1]);
95	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
96	udelay(100);
97	if (chn == 3) {
98		ICE1712_STDSP24_2_CHN4(ice->spec.hoontech.boxbits, 0);
99		snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
100	} else {
101		switch (chn) {
102		case 0:	ICE1712_STDSP24_1_CHN1(ice->spec.hoontech.boxbits, 0); break;
103		case 1:	ICE1712_STDSP24_1_CHN2(ice->spec.hoontech.boxbits, 0); break;
104		case 2:	ICE1712_STDSP24_1_CHN3(ice->spec.hoontech.boxbits, 0); break;
105		}
106		snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[1]);
107	}
108	udelay(100);
109	ICE1712_STDSP24_1_CHN1(ice->spec.hoontech.boxbits, 1);
110	ICE1712_STDSP24_1_CHN2(ice->spec.hoontech.boxbits, 1);
111	ICE1712_STDSP24_1_CHN3(ice->spec.hoontech.boxbits, 1);
112	ICE1712_STDSP24_2_CHN4(ice->spec.hoontech.boxbits, 1);
113	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[1]);
114	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
115	udelay(100);
116
117	ICE1712_STDSP24_2_MIDI1(ice->spec.hoontech.boxbits, 0);
118	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
119
120	mutex_unlock(&ice->gpio_mutex);
121}
122
123static void __devinit snd_ice1712_stdsp24_box_midi(struct snd_ice1712 *ice, int box, int master)
124{
125	mutex_lock(&ice->gpio_mutex);
126
127	/* select box */
128	ICE1712_STDSP24_0_BOX(ice->spec.hoontech.boxbits, box);
129	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[0]);
130
131	ICE1712_STDSP24_2_MIDIIN(ice->spec.hoontech.boxbits, 1);
132	ICE1712_STDSP24_2_MIDI1(ice->spec.hoontech.boxbits, master);
133	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
134	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[3]);
135
136	udelay(100);
137
138	ICE1712_STDSP24_2_MIDIIN(ice->spec.hoontech.boxbits, 0);
139	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
140
141	mdelay(10);
142
143	ICE1712_STDSP24_2_MIDIIN(ice->spec.hoontech.boxbits, 1);
144	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[2]);
145
146	mutex_unlock(&ice->gpio_mutex);
147}
148
149static void __devinit snd_ice1712_stdsp24_midi2(struct snd_ice1712 *ice, int activate)
150{
151	mutex_lock(&ice->gpio_mutex);
152	ICE1712_STDSP24_3_MIDI2(ice->spec.hoontech.boxbits, activate);
153	snd_ice1712_stdsp24_gpio_write(ice, ice->spec.hoontech.boxbits[3]);
154	mutex_unlock(&ice->gpio_mutex);
155}
156
157static int __devinit snd_ice1712_hoontech_init(struct snd_ice1712 *ice)
158{
159	int box, chn;
160
161	ice->num_total_dacs = 8;
162	ice->num_total_adcs = 8;
163
164	ice->spec.hoontech.boxbits[0] =
165	ice->spec.hoontech.boxbits[1] =
166	ice->spec.hoontech.boxbits[2] =
167	ice->spec.hoontech.boxbits[3] = 0;	/* should be already */
168
169	ICE1712_STDSP24_SET_ADDR(ice->spec.hoontech.boxbits, 0);
170	ICE1712_STDSP24_CLOCK(ice->spec.hoontech.boxbits, 0, 1);
171	ICE1712_STDSP24_0_BOX(ice->spec.hoontech.boxbits, 0);
172	ICE1712_STDSP24_0_DAREAR(ice->spec.hoontech.boxbits, 0);
173
174	ICE1712_STDSP24_SET_ADDR(ice->spec.hoontech.boxbits, 1);
175	ICE1712_STDSP24_CLOCK(ice->spec.hoontech.boxbits, 1, 1);
176	ICE1712_STDSP24_1_CHN1(ice->spec.hoontech.boxbits, 1);
177	ICE1712_STDSP24_1_CHN2(ice->spec.hoontech.boxbits, 1);
178	ICE1712_STDSP24_1_CHN3(ice->spec.hoontech.boxbits, 1);
179
180	ICE1712_STDSP24_SET_ADDR(ice->spec.hoontech.boxbits, 2);
181	ICE1712_STDSP24_CLOCK(ice->spec.hoontech.boxbits, 2, 1);
182	ICE1712_STDSP24_2_CHN4(ice->spec.hoontech.boxbits, 1);
183	ICE1712_STDSP24_2_MIDIIN(ice->spec.hoontech.boxbits, 1);
184	ICE1712_STDSP24_2_MIDI1(ice->spec.hoontech.boxbits, 0);
185
186	ICE1712_STDSP24_SET_ADDR(ice->spec.hoontech.boxbits, 3);
187	ICE1712_STDSP24_CLOCK(ice->spec.hoontech.boxbits, 3, 1);
188	ICE1712_STDSP24_3_MIDI2(ice->spec.hoontech.boxbits, 0);
189	ICE1712_STDSP24_3_MUTE(ice->spec.hoontech.boxbits, 1);
190	ICE1712_STDSP24_3_INSEL(ice->spec.hoontech.boxbits, 0);
191
192	/* let's go - activate only functions in first box */
193	ice->spec.hoontech.config = 0;
194			    /* ICE1712_STDSP24_MUTE |
195			       ICE1712_STDSP24_INSEL |
196			       ICE1712_STDSP24_DAREAR; */
197	ice->spec.hoontech.boxconfig[0] = ICE1712_STDSP24_BOX_CHN1 |
198				     ICE1712_STDSP24_BOX_CHN2 |
199				     ICE1712_STDSP24_BOX_CHN3 |
200				     ICE1712_STDSP24_BOX_CHN4 |
201				     ICE1712_STDSP24_BOX_MIDI1 |
202				     ICE1712_STDSP24_BOX_MIDI2;
203	ice->spec.hoontech.boxconfig[1] =
204	ice->spec.hoontech.boxconfig[2] =
205	ice->spec.hoontech.boxconfig[3] = 0;
206	snd_ice1712_stdsp24_darear(ice, (ice->spec.hoontech.config & ICE1712_STDSP24_DAREAR) ? 1 : 0);
207	snd_ice1712_stdsp24_mute(ice, (ice->spec.hoontech.config & ICE1712_STDSP24_MUTE) ? 1 : 0);
208	snd_ice1712_stdsp24_insel(ice, (ice->spec.hoontech.config & ICE1712_STDSP24_INSEL) ? 1 : 0);
209	for (box = 0; box < 4; box++) {
210		for (chn = 0; chn < 4; chn++)
211			snd_ice1712_stdsp24_box_channel(ice, box, chn, (ice->spec.hoontech.boxconfig[box] & (1 << chn)) ? 1 : 0);
212		snd_ice1712_stdsp24_box_midi(ice, box,
213				(ice->spec.hoontech.boxconfig[box] & ICE1712_STDSP24_BOX_MIDI1) ? 1 : 0);
214		if (ice->spec.hoontech.boxconfig[box] & ICE1712_STDSP24_BOX_MIDI2)
215			snd_ice1712_stdsp24_midi2(ice, 1);
216	}
217
218	return 0;
219}
220
221/*
222 * AK4524 access
223 */
224
225/* start callback for STDSP24 with modified hardware */
226static void stdsp24_ak4524_lock(struct snd_akm4xxx *ak, int chip)
227{
228	struct snd_ice1712 *ice = ak->private_data[0];
229	unsigned char tmp;
230	snd_ice1712_save_gpio_status(ice);
231	tmp =	ICE1712_STDSP24_SERIAL_DATA |
232		ICE1712_STDSP24_SERIAL_CLOCK |
233		ICE1712_STDSP24_AK4524_CS;
234	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
235			  ice->gpio.direction | tmp);
236	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
237}
238
239static int __devinit snd_ice1712_value_init(struct snd_ice1712 *ice)
240{
241	/* Hoontech STDSP24 with modified hardware */
242	static struct snd_akm4xxx akm_stdsp24_mv __devinitdata = {
243		.num_adcs = 2,
244		.num_dacs = 2,
245		.type = SND_AK4524,
246		.ops = {
247			.lock = stdsp24_ak4524_lock
248		}
249	};
250
251	static struct snd_ak4xxx_private akm_stdsp24_mv_priv __devinitdata = {
252		.caddr = 2,
253		.cif = 1, /* CIF high */
254		.data_mask = ICE1712_STDSP24_SERIAL_DATA,
255		.clk_mask = ICE1712_STDSP24_SERIAL_CLOCK,
256		.cs_mask = ICE1712_STDSP24_AK4524_CS,
257		.cs_addr = ICE1712_STDSP24_AK4524_CS,
258		.cs_none = 0,
259		.add_flags = 0,
260	};
261
262	int err;
263	struct snd_akm4xxx *ak;
264
265	/* set the analog DACs */
266	ice->num_total_dacs = 2;
267
268	/* set the analog ADCs */
269	ice->num_total_adcs = 2;
270
271	/* analog section */
272	ak = ice->akm = kmalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
273	if (! ak)
274		return -ENOMEM;
275	ice->akm_codecs = 1;
276
277	err = snd_ice1712_akm4xxx_init(ak, &akm_stdsp24_mv, &akm_stdsp24_mv_priv, ice);
278	if (err < 0)
279		return err;
280
281	/* ak4524 controls */
282	err = snd_ice1712_akm4xxx_build_controls(ice);
283	if (err < 0)
284		return err;
285
286	return 0;
287}
288
289static int __devinit snd_ice1712_ez8_init(struct snd_ice1712 *ice)
290{
291	ice->gpio.write_mask = ice->eeprom.gpiomask;
292	ice->gpio.direction = ice->eeprom.gpiodir;
293	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ice->eeprom.gpiomask);
294	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION, ice->eeprom.gpiodir);
295	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, ice->eeprom.gpiostate);
296	return 0;
297}
298
299
300/* entry point */
301struct snd_ice1712_card_info snd_ice1712_hoontech_cards[] __devinitdata = {
302	{
303		.subvendor = ICE1712_SUBDEVICE_STDSP24,
304		.name = "Hoontech SoundTrack Audio DSP24",
305		.model = "dsp24",
306		.chip_init = snd_ice1712_hoontech_init,
307	},
308	{
309		.subvendor = ICE1712_SUBDEVICE_STDSP24_VALUE,	/* a dummy id */
310		.name = "Hoontech SoundTrack Audio DSP24 Value",
311		.model = "dsp24_value",
312		.chip_init = snd_ice1712_value_init,
313	},
314	{
315		.subvendor = ICE1712_SUBDEVICE_STDSP24_MEDIA7_1,
316		.name = "Hoontech STA DSP24 Media 7.1",
317		.model = "dsp24_71",
318		.chip_init = snd_ice1712_hoontech_init,
319	},
320	{
321		.subvendor = ICE1712_SUBDEVICE_EVENT_EZ8,	/* a dummy id */
322		.name = "Event Electronics EZ8",
323		.model = "ez8",
324		.chip_init = snd_ice1712_ez8_init,
325	},
326	{ } /* terminator */
327};
328