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  • only in /netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/sound/pci/ice1712/
1/*
2 *   ALSA driver for ICEnsemble ICE1712 (Envy24)
3 *
4 *   Lowlevel functions for Hoontech STDSP24
5 *
6 *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.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 <asm/io.h>
25#include <linux/delay.h>
26#include <linux/interrupt.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/mutex.h>
30
31#include <sound/core.h>
32
33#include "ice1712.h"
34#include "hoontech.h"
35
36/* Hoontech-specific setting */
37struct hoontech_spec {
38	unsigned char boxbits[4];
39	unsigned int config;
40	unsigned short boxconfig[4];
41};
42
43static void __devinit snd_ice1712_stdsp24_gpio_write(struct snd_ice1712 *ice, unsigned char byte)
44{
45	byte |= ICE1712_STDSP24_CLOCK_BIT;
46	udelay(100);
47	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
48	byte &= ~ICE1712_STDSP24_CLOCK_BIT;
49	udelay(100);
50	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
51	byte |= ICE1712_STDSP24_CLOCK_BIT;
52	udelay(100);
53	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, byte);
54}
55
56static void __devinit snd_ice1712_stdsp24_darear(struct snd_ice1712 *ice, int activate)
57{
58	struct hoontech_spec *spec = ice->spec;
59	mutex_lock(&ice->gpio_mutex);
60	ICE1712_STDSP24_0_DAREAR(spec->boxbits, activate);
61	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[0]);
62	mutex_unlock(&ice->gpio_mutex);
63}
64
65static void __devinit snd_ice1712_stdsp24_mute(struct snd_ice1712 *ice, int activate)
66{
67	struct hoontech_spec *spec = ice->spec;
68	mutex_lock(&ice->gpio_mutex);
69	ICE1712_STDSP24_3_MUTE(spec->boxbits, activate);
70	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[3]);
71	mutex_unlock(&ice->gpio_mutex);
72}
73
74static void __devinit snd_ice1712_stdsp24_insel(struct snd_ice1712 *ice, int activate)
75{
76	struct hoontech_spec *spec = ice->spec;
77	mutex_lock(&ice->gpio_mutex);
78	ICE1712_STDSP24_3_INSEL(spec->boxbits, activate);
79	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[3]);
80	mutex_unlock(&ice->gpio_mutex);
81}
82
83static void __devinit snd_ice1712_stdsp24_box_channel(struct snd_ice1712 *ice, int box, int chn, int activate)
84{
85	struct hoontech_spec *spec = ice->spec;
86
87	mutex_lock(&ice->gpio_mutex);
88
89	/* select box */
90	ICE1712_STDSP24_0_BOX(spec->boxbits, box);
91	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[0]);
92
93	/* prepare for write */
94	if (chn == 3)
95		ICE1712_STDSP24_2_CHN4(spec->boxbits, 0);
96	ICE1712_STDSP24_2_MIDI1(spec->boxbits, activate);
97	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
98	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[3]);
99
100	ICE1712_STDSP24_1_CHN1(spec->boxbits, 1);
101	ICE1712_STDSP24_1_CHN2(spec->boxbits, 1);
102	ICE1712_STDSP24_1_CHN3(spec->boxbits, 1);
103	ICE1712_STDSP24_2_CHN4(spec->boxbits, 1);
104	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[1]);
105	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
106	udelay(100);
107	if (chn == 3) {
108		ICE1712_STDSP24_2_CHN4(spec->boxbits, 0);
109		snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
110	} else {
111		switch (chn) {
112		case 0:	ICE1712_STDSP24_1_CHN1(spec->boxbits, 0); break;
113		case 1:	ICE1712_STDSP24_1_CHN2(spec->boxbits, 0); break;
114		case 2:	ICE1712_STDSP24_1_CHN3(spec->boxbits, 0); break;
115		}
116		snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[1]);
117	}
118	udelay(100);
119	ICE1712_STDSP24_1_CHN1(spec->boxbits, 1);
120	ICE1712_STDSP24_1_CHN2(spec->boxbits, 1);
121	ICE1712_STDSP24_1_CHN3(spec->boxbits, 1);
122	ICE1712_STDSP24_2_CHN4(spec->boxbits, 1);
123	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[1]);
124	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
125	udelay(100);
126
127	ICE1712_STDSP24_2_MIDI1(spec->boxbits, 0);
128	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
129
130	mutex_unlock(&ice->gpio_mutex);
131}
132
133static void __devinit snd_ice1712_stdsp24_box_midi(struct snd_ice1712 *ice, int box, int master)
134{
135	struct hoontech_spec *spec = ice->spec;
136
137	mutex_lock(&ice->gpio_mutex);
138
139	/* select box */
140	ICE1712_STDSP24_0_BOX(spec->boxbits, box);
141	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[0]);
142
143	ICE1712_STDSP24_2_MIDIIN(spec->boxbits, 1);
144	ICE1712_STDSP24_2_MIDI1(spec->boxbits, master);
145	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
146	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[3]);
147
148	udelay(100);
149
150	ICE1712_STDSP24_2_MIDIIN(spec->boxbits, 0);
151	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
152
153	mdelay(10);
154
155	ICE1712_STDSP24_2_MIDIIN(spec->boxbits, 1);
156	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[2]);
157
158	mutex_unlock(&ice->gpio_mutex);
159}
160
161static void __devinit snd_ice1712_stdsp24_midi2(struct snd_ice1712 *ice, int activate)
162{
163	struct hoontech_spec *spec = ice->spec;
164	mutex_lock(&ice->gpio_mutex);
165	ICE1712_STDSP24_3_MIDI2(spec->boxbits, activate);
166	snd_ice1712_stdsp24_gpio_write(ice, spec->boxbits[3]);
167	mutex_unlock(&ice->gpio_mutex);
168}
169
170static int __devinit snd_ice1712_hoontech_init(struct snd_ice1712 *ice)
171{
172	struct hoontech_spec *spec;
173	int box, chn;
174
175	ice->num_total_dacs = 8;
176	ice->num_total_adcs = 8;
177
178	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
179	if (!spec)
180		return -ENOMEM;
181	ice->spec = spec;
182
183	ICE1712_STDSP24_SET_ADDR(spec->boxbits, 0);
184	ICE1712_STDSP24_CLOCK(spec->boxbits, 0, 1);
185	ICE1712_STDSP24_0_BOX(spec->boxbits, 0);
186	ICE1712_STDSP24_0_DAREAR(spec->boxbits, 0);
187
188	ICE1712_STDSP24_SET_ADDR(spec->boxbits, 1);
189	ICE1712_STDSP24_CLOCK(spec->boxbits, 1, 1);
190	ICE1712_STDSP24_1_CHN1(spec->boxbits, 1);
191	ICE1712_STDSP24_1_CHN2(spec->boxbits, 1);
192	ICE1712_STDSP24_1_CHN3(spec->boxbits, 1);
193
194	ICE1712_STDSP24_SET_ADDR(spec->boxbits, 2);
195	ICE1712_STDSP24_CLOCK(spec->boxbits, 2, 1);
196	ICE1712_STDSP24_2_CHN4(spec->boxbits, 1);
197	ICE1712_STDSP24_2_MIDIIN(spec->boxbits, 1);
198	ICE1712_STDSP24_2_MIDI1(spec->boxbits, 0);
199
200	ICE1712_STDSP24_SET_ADDR(spec->boxbits, 3);
201	ICE1712_STDSP24_CLOCK(spec->boxbits, 3, 1);
202	ICE1712_STDSP24_3_MIDI2(spec->boxbits, 0);
203	ICE1712_STDSP24_3_MUTE(spec->boxbits, 1);
204	ICE1712_STDSP24_3_INSEL(spec->boxbits, 0);
205
206	/* let's go - activate only functions in first box */
207	spec->config = 0;
208			    /* ICE1712_STDSP24_MUTE |
209			       ICE1712_STDSP24_INSEL |
210			       ICE1712_STDSP24_DAREAR; */
211	/*  These boxconfigs have caused problems in the past.
212	 *  The code is not optimal, but should now enable a working config to
213	 *  be achieved.
214	 *  ** MIDI IN can only be configured on one box **
215	 *  ICE1712_STDSP24_BOX_MIDI1 needs to be set for that box.
216	 *  Tests on a ADAC2000 box suggest the box config flags do not
217	 *  work as would be expected, and the inputs are crossed.
218	 *  Setting ICE1712_STDSP24_BOX_MIDI1 and ICE1712_STDSP24_BOX_MIDI2
219	 *  on the same box connects MIDI-In to both 401 uarts; both outputs
220	 *  are then active on all boxes.
221	 *  The default config here sets up everything on the first box.
222	 *  Alan Horstmann  5.2.2008
223	 */
224	spec->boxconfig[0] = ICE1712_STDSP24_BOX_CHN1 |
225				     ICE1712_STDSP24_BOX_CHN2 |
226				     ICE1712_STDSP24_BOX_CHN3 |
227				     ICE1712_STDSP24_BOX_CHN4 |
228				     ICE1712_STDSP24_BOX_MIDI1 |
229				     ICE1712_STDSP24_BOX_MIDI2;
230	spec->boxconfig[1] =
231	spec->boxconfig[2] =
232	spec->boxconfig[3] = 0;
233	snd_ice1712_stdsp24_darear(ice,
234		(spec->config & ICE1712_STDSP24_DAREAR) ? 1 : 0);
235	snd_ice1712_stdsp24_mute(ice,
236		(spec->config & ICE1712_STDSP24_MUTE) ? 1 : 0);
237	snd_ice1712_stdsp24_insel(ice,
238		(spec->config & ICE1712_STDSP24_INSEL) ? 1 : 0);
239	for (box = 0; box < 4; box++) {
240		if (spec->boxconfig[box] & ICE1712_STDSP24_BOX_MIDI2)
241                        snd_ice1712_stdsp24_midi2(ice, 1);
242		for (chn = 0; chn < 4; chn++)
243			snd_ice1712_stdsp24_box_channel(ice, box, chn,
244				(spec->boxconfig[box] & (1 << chn)) ? 1 : 0);
245		if (spec->boxconfig[box] & ICE1712_STDSP24_BOX_MIDI1)
246			snd_ice1712_stdsp24_box_midi(ice, box, 1);
247	}
248
249	return 0;
250}
251
252/*
253 * AK4524 access
254 */
255
256/* start callback for STDSP24 with modified hardware */
257static void stdsp24_ak4524_lock(struct snd_akm4xxx *ak, int chip)
258{
259	struct snd_ice1712 *ice = ak->private_data[0];
260	unsigned char tmp;
261	snd_ice1712_save_gpio_status(ice);
262	tmp =	ICE1712_STDSP24_SERIAL_DATA |
263		ICE1712_STDSP24_SERIAL_CLOCK |
264		ICE1712_STDSP24_AK4524_CS;
265	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION,
266			  ice->gpio.direction | tmp);
267	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ~tmp);
268}
269
270static int __devinit snd_ice1712_value_init(struct snd_ice1712 *ice)
271{
272	/* Hoontech STDSP24 with modified hardware */
273	static struct snd_akm4xxx akm_stdsp24_mv __devinitdata = {
274		.num_adcs = 2,
275		.num_dacs = 2,
276		.type = SND_AK4524,
277		.ops = {
278			.lock = stdsp24_ak4524_lock
279		}
280	};
281
282	static struct snd_ak4xxx_private akm_stdsp24_mv_priv __devinitdata = {
283		.caddr = 2,
284		.cif = 1, /* CIF high */
285		.data_mask = ICE1712_STDSP24_SERIAL_DATA,
286		.clk_mask = ICE1712_STDSP24_SERIAL_CLOCK,
287		.cs_mask = ICE1712_STDSP24_AK4524_CS,
288		.cs_addr = ICE1712_STDSP24_AK4524_CS,
289		.cs_none = 0,
290		.add_flags = 0,
291	};
292
293	int err;
294	struct snd_akm4xxx *ak;
295
296	/* set the analog DACs */
297	ice->num_total_dacs = 2;
298
299	/* set the analog ADCs */
300	ice->num_total_adcs = 2;
301
302	/* analog section */
303	ak = ice->akm = kmalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
304	if (! ak)
305		return -ENOMEM;
306	ice->akm_codecs = 1;
307
308	err = snd_ice1712_akm4xxx_init(ak, &akm_stdsp24_mv, &akm_stdsp24_mv_priv, ice);
309	if (err < 0)
310		return err;
311
312	/* ak4524 controls */
313	err = snd_ice1712_akm4xxx_build_controls(ice);
314	if (err < 0)
315		return err;
316
317	return 0;
318}
319
320static int __devinit snd_ice1712_ez8_init(struct snd_ice1712 *ice)
321{
322	ice->gpio.write_mask = ice->eeprom.gpiomask;
323	ice->gpio.direction = ice->eeprom.gpiodir;
324	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, ice->eeprom.gpiomask);
325	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DIRECTION, ice->eeprom.gpiodir);
326	snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, ice->eeprom.gpiostate);
327	return 0;
328}
329
330
331/* entry point */
332struct snd_ice1712_card_info snd_ice1712_hoontech_cards[] __devinitdata = {
333	{
334		.subvendor = ICE1712_SUBDEVICE_STDSP24,
335		.name = "Hoontech SoundTrack Audio DSP24",
336		.model = "dsp24",
337		.chip_init = snd_ice1712_hoontech_init,
338		.mpu401_1_name = "MIDI-1 Hoontech/STA DSP24",
339		.mpu401_2_name = "MIDI-2 Hoontech/STA DSP24",
340	},
341	{
342		.subvendor = ICE1712_SUBDEVICE_STDSP24_VALUE,	/* a dummy id */
343		.name = "Hoontech SoundTrack Audio DSP24 Value",
344		.model = "dsp24_value",
345		.chip_init = snd_ice1712_value_init,
346	},
347	{
348		.subvendor = ICE1712_SUBDEVICE_STDSP24_MEDIA7_1,
349		.name = "Hoontech STA DSP24 Media 7.1",
350		.model = "dsp24_71",
351		.chip_init = snd_ice1712_hoontech_init,
352	},
353	{
354		.subvendor = ICE1712_SUBDEVICE_EVENT_EZ8,	/* a dummy id */
355		.name = "Event Electronics EZ8",
356		.model = "ez8",
357		.chip_init = snd_ice1712_ez8_init,
358	},
359	{ } /* terminator */
360};
361