sound/pci/ice1712/phase.c

   1 /*
   2  *   ALSA driver for ICEnsemble ICE1724 (Envy24)
   3  *
   4  *   Lowlevel functions for Terratec PHASE 22
   5  *
   6  *      Copyright (c) 2005 Misha Zhilin <misha@epiphan.com>
   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 /* PHASE 22 overview:
  25  *   Audio controller: VIA Envy24HT-S (slightly trimmed down version of Envy24HT)
  26  *   Analog chip: AK4524 (partially via Philip's 74HCT125)
  27  *   Digital receiver: CS8414-CS (not supported in this release)
  28  *
  29  *   Envy connects to AK4524
  30  *      - CS directly from GPIO 10
  31  *      - CCLK via 74HCT125's gate #4 from GPIO 4
  32  *      - CDTI via 74HCT125's gate #2 from GPIO 5
  33  *              CDTI may be completely blocked by 74HCT125's gate #1 controlled by GPIO 3
  34  */
  35
  36 #include <sound/driver.h>
  37 #include <asm/io.h>
  38 #include <linux/delay.h>
  39 #include <linux/interrupt.h>
  40 #include <linux/init.h>
  41 #include <linux/slab.h>
  42 #include <sound/core.h>
  43
  44 #include "ice1712.h"
  45 #include "envy24ht.h"
  46 #include "phase.h"
  47
  48 static akm4xxx_t akm_phase22 __devinitdata = {
  49         .type = SND_AK4524,
  50         .num_dacs = 2,
  51         .num_adcs = 2,
  52 };
  53
  54 static struct snd_ak4xxx_private akm_phase22_priv __devinitdata = {
  55         .caddr =        2,
  56         .cif =          1,
  57         .data_mask =    1 << 4,
  58         .clk_mask =     1 << 5,
  59         .cs_mask =      1 << 10,
  60         .cs_addr =      1 << 10,
  61         .cs_none =      0,
  62         .add_flags =    1 << 3,
  63         .mask_flags =   0,
  64 };
  65
  66 static int __devinit phase22_init(ice1712_t *ice)
  67 {
  68         akm4xxx_t *ak;
  69         int err;
  70
  71         // Configure DAC/ADC description for generic part of ice1724
  72         switch (ice->eeprom.subvendor) {
  73         case VT1724_SUBDEVICE_PHASE22:
  74                 ice->num_total_dacs = 2;
  75                 ice->num_total_adcs = 2;
  76                 ice->vt1720 = 1; // Envy24HT-S have 16 bit wide GPIO
  77                 break;
  78         default:
  79                 snd_BUG();
  80                 return -EINVAL;
  81         }
  82
  83         // Initialize analog chips
  84         ak = ice->akm = kcalloc(1, sizeof(akm4xxx_t), GFP_KERNEL);
  85         if (! ak)
  86                 return -ENOMEM;
  87         ice->akm_codecs = 1;
  88         switch (ice->eeprom.subvendor) {
  89         case VT1724_SUBDEVICE_PHASE22:
  90                 if ((err = snd_ice1712_akm4xxx_init(ak, &akm_phase22, &akm_phase22_priv, ice)) < 0)
  91                         return err;
  92                 break;
  93         }
  94
  95         return 0;
  96 }
  97
  98 static int __devinit phase22_add_controls(ice1712_t *ice)
  99 {
 100         int err = 0;
 101
 102         switch (ice->eeprom.subvendor) {
 103         case VT1724_SUBDEVICE_PHASE22:
 104                 err = snd_ice1712_akm4xxx_build_controls(ice);
 105                 if (err < 0)
 106                         return err;
 107         }
 108         return 0;
 109 }
 110
 111 static unsigned char phase22_eeprom[] __devinitdata = {
 112         0x00,   /* SYSCONF: 1xADC, 1xDACs */
 113         0x80,   /* ACLINK: I2S */
 114         0xf8,   /* I2S: vol, 96k, 24bit*/
 115         0xc3,   /* SPDIF: out-en, out-int, spdif-in */
 116         0xFF,   /* GPIO_DIR */
 117         0xFF,   /* GPIO_DIR1 */
 118         0xFF,   /* GPIO_DIR2 */
 119         0x00,   /* GPIO_MASK */
 120         0x00,   /* GPIO_MASK1 */
 121         0x00,   /* GPIO_MASK2 */
 122         0x00,   /* GPIO_STATE: */
 123         0x00,   /* GPIO_STATE1: */
 124         0x00,   /* GPIO_STATE2 */
 125 };
 126
 127 struct snd_ice1712_card_info snd_vt1724_phase_cards[] __devinitdata = {
 128         {
 129                 .subvendor = VT1724_SUBDEVICE_PHASE22,
 130                 .name = "Terratec PHASE 22",
 131                 .model = "phase22",
 132                 .chip_init = phase22_init,
 133                 .build_controls = phase22_add_controls,
 134                 .eeprom_size = sizeof(phase22_eeprom),
 135                 .eeprom_data = phase22_eeprom,
 136         },
 137         { } /* terminator */
 138 };