2 * ALSA driver for ICEnsemble ICE1712 (Envy24)
4 * Lowlevel functions for M-Audio Revolution 7.1
6 * Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
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.
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.
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
24 #include <sound/driver.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>
36 static void revo_i2s_mclk_changed(ice1712_t *ice)
38 /* assert PRST# to converters; MT05 bit 7 */
39 outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
42 outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
46 * change the rate of envy24HT, AK4355 and AK4381
48 static void revo_set_rate_val(akm4xxx_t *ak, unsigned int rate)
50 unsigned char old, tmp, dfs;
53 if (rate == 0) /* no hint - S/PDIF input is master, simply return */
56 /* adjust DFS on codecs */
59 else if (rate > 48000)
64 if (ak->type == SND_AK4355) {
71 tmp = snd_akm4xxx_get(ak, 0, reg);
72 old = (tmp >> shift) & 0x03;
77 snd_akm4xxx_reset(ak, 1);
78 tmp = snd_akm4xxx_get(ak, 0, reg);
79 tmp &= ~(0x03 << 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);
87 * initialize the chips on M-Audio Revolution cards
90 static akm4xxx_t akm_revo_front __devinitdata = {
94 .set_rate_val = revo_set_rate_val
98 static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
101 .data_mask = VT1724_REVO_CDOUT,
102 .clk_mask = VT1724_REVO_CCLK,
103 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
104 .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
105 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
106 .add_flags = VT1724_REVO_CCLK, /* high at init */
110 static akm4xxx_t akm_revo_surround __devinitdata = {
115 .set_rate_val = revo_set_rate_val
119 static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
122 .data_mask = VT1724_REVO_CDOUT,
123 .clk_mask = VT1724_REVO_CCLK,
124 .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
125 .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
126 .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
127 .add_flags = VT1724_REVO_CCLK, /* high at init */
131 static unsigned int rates[] = {
132 32000, 44100, 48000, 64000, 88200, 96000,
136 static snd_pcm_hw_constraint_list_t revo_rates = {
137 .count = ARRAY_SIZE(rates),
142 static int __devinit revo_init(ice1712_t *ice)
147 /* determine I2C, DACs and ADCs */
148 switch (ice->eeprom.subvendor) {
149 case VT1724_SUBDEVICE_REVOLUTION71:
150 ice->num_total_dacs = 8;
151 ice->num_total_adcs = 2;
158 ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
160 /* second stage of initialization, analog parts and others */
161 ak = ice->akm = kcalloc(2, sizeof(akm4xxx_t), GFP_KERNEL);
165 switch (ice->eeprom.subvendor) {
166 case VT1724_SUBDEVICE_REVOLUTION71:
167 if ((err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front, &akm_revo_front_priv, ice)) < 0)
169 if ((err = snd_ice1712_akm4xxx_init(ak + 1, &akm_revo_surround, &akm_revo_surround_priv, ice)) < 0)
171 /* unmute all codecs */
172 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE, VT1724_REVO_MUTE);
176 ice->hw_rates = &revo_rates; /* AK codecs don't support lower than 32k */
182 static int __devinit revo_add_controls(ice1712_t *ice)
186 switch (ice->eeprom.subvendor) {
187 case VT1724_SUBDEVICE_REVOLUTION71:
188 err = snd_ice1712_akm4xxx_build_controls(ice);
196 struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
198 .subvendor = VT1724_SUBDEVICE_REVOLUTION71,
199 .name = "M Audio Revolution-7.1",
201 .chip_init = revo_init,
202 .build_controls = revo_add_controls,