139 lines
3.6 KiB
C
139 lines
3.6 KiB
C
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/*
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* ALSA driver for ICEnsemble ICE1724 (Envy24)
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*
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* Lowlevel functions for Terratec PHASE 22
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*
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* Copyright (c) 2005 Misha Zhilin <misha@epiphan.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* PHASE 22 overview:
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* Audio controller: VIA Envy24HT-S (slightly trimmed down version of Envy24HT)
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* Analog chip: AK4524 (partially via Philip's 74HCT125)
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* Digital receiver: CS8414-CS (not supported in this release)
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*
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* Envy connects to AK4524
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* - CS directly from GPIO 10
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* - CCLK via 74HCT125's gate #4 from GPIO 4
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* - CDTI via 74HCT125's gate #2 from GPIO 5
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* CDTI may be completely blocked by 74HCT125's gate #1 controlled by GPIO 3
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*/
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#include <sound/driver.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include "ice1712.h"
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#include "envy24ht.h"
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#include "phase.h"
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static akm4xxx_t akm_phase22 __devinitdata = {
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.type = SND_AK4524,
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.num_dacs = 2,
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.num_adcs = 2,
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};
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static struct snd_ak4xxx_private akm_phase22_priv __devinitdata = {
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.caddr = 2,
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.cif = 1,
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.data_mask = 1 << 4,
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.clk_mask = 1 << 5,
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.cs_mask = 1 << 10,
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.cs_addr = 1 << 10,
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.cs_none = 0,
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.add_flags = 1 << 3,
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.mask_flags = 0,
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};
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static int __devinit phase22_init(ice1712_t *ice)
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{
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akm4xxx_t *ak;
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int err;
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// Configure DAC/ADC description for generic part of ice1724
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switch (ice->eeprom.subvendor) {
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case VT1724_SUBDEVICE_PHASE22:
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ice->num_total_dacs = 2;
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ice->num_total_adcs = 2;
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ice->vt1720 = 1; // Envy24HT-S have 16 bit wide GPIO
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break;
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default:
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snd_BUG();
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return -EINVAL;
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}
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// Initialize analog chips
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ak = ice->akm = kcalloc(1, sizeof(akm4xxx_t), GFP_KERNEL);
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if (! ak)
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return -ENOMEM;
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ice->akm_codecs = 1;
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switch (ice->eeprom.subvendor) {
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case VT1724_SUBDEVICE_PHASE22:
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if ((err = snd_ice1712_akm4xxx_init(ak, &akm_phase22, &akm_phase22_priv, ice)) < 0)
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return err;
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break;
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}
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return 0;
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}
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static int __devinit phase22_add_controls(ice1712_t *ice)
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{
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int err = 0;
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switch (ice->eeprom.subvendor) {
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case VT1724_SUBDEVICE_PHASE22:
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err = snd_ice1712_akm4xxx_build_controls(ice);
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if (err < 0)
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return err;
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}
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return 0;
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}
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static unsigned char phase22_eeprom[] __devinitdata = {
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0x00, /* SYSCONF: 1xADC, 1xDACs */
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0x80, /* ACLINK: I2S */
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0xf8, /* I2S: vol, 96k, 24bit*/
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0xc3, /* SPDIF: out-en, out-int, spdif-in */
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0xFF, /* GPIO_DIR */
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0xFF, /* GPIO_DIR1 */
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0xFF, /* GPIO_DIR2 */
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0x00, /* GPIO_MASK */
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0x00, /* GPIO_MASK1 */
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0x00, /* GPIO_MASK2 */
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0x00, /* GPIO_STATE: */
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0x00, /* GPIO_STATE1: */
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0x00, /* GPIO_STATE2 */
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};
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struct snd_ice1712_card_info snd_vt1724_phase_cards[] __devinitdata = {
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{
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.subvendor = VT1724_SUBDEVICE_PHASE22,
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.name = "Terratec PHASE 22",
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.model = "phase22",
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.chip_init = phase22_init,
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.build_controls = phase22_add_controls,
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.eeprom_size = sizeof(phase22_eeprom),
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.eeprom_data = phase22_eeprom,
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},
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{ } /* terminator */
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};
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