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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * ALSA driver for ICEnsemble VT1724 (Envy24HT)4 *5 * Lowlevel functions for AudioTrak Prodigy 192 cards6 * Supported IEC958 input from optional MI/ODI/O add-on card.7 *8 * Specifics (SW, HW):9 * -------------------10 * * 49.5MHz crystal11 * * SPDIF-OUT on the card:12 * - coax (through isolation transformer)/toslink supplied by13 * 74HC04 gates - 3 in parallel14 * - output switched between on-board CD drive dig-out connector15 * and ice1724 SPDTX pin, using 74HC02 NOR gates, controlled16 * by GPIO20 (0 = CD dig-out, 1 = SPDTX)17 * * SPDTX goes straight to MI/ODI/O card's SPDIF-OUT coax18 *19 * * MI/ODI/O card: AK4114 based, used for iec958 input only20 * - toslink input -> RX021 * - coax input -> RX122 * - 4wire protocol:23 * AK4114 ICE172424 * ------------------------------25 * CDTO (pin 32) -- GPIO11 pin 8626 * CDTI (pin 33) -- GPIO10 pin 7727 * CCLK (pin 34) -- GPIO9 pin 7628 * CSN (pin 35) -- GPIO8 pin 7529 * - output data Mode 7 (24bit, I2S, slave)30 * - both MCKO1 and MCKO2 of ak4114 are fed to FPGA, which31 * outputs master clock to SPMCLKIN of ice1724.32 * Experimentally I found out that only a combination of33 * OCKS0=1, OCKS1=1 (128fs, 64fs output) and ice1724 -34 * VT1724_MT_I2S_MCLK_128X=0 (256fs input) yields correct35 * sampling rate. That means that the FPGA doubles the36 * MCK01 rate.37 *38 * Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>39 * Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>40 * Copyright (c) 2004 Kouichi ONO <co2b@ceres.dti.ne.jp>41 */ 42 43#include <linux/delay.h>44#include <linux/interrupt.h>45#include <linux/init.h>46#include <linux/slab.h>47#include <sound/core.h>48 49#include "ice1712.h"50#include "envy24ht.h"51#include "prodigy192.h"52#include "stac946x.h"53#include <sound/tlv.h>54 55struct prodigy192_spec {56 struct ak4114 *ak4114;57 /* rate change needs atomic mute/unmute of all dacs*/58 struct mutex mute_mutex;59};60 61static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)62{63 snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);64}65 66static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)67{68 return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);69}70 71/*72 * DAC mute control73 */74 75/*76 * idx = STAC9460 volume register number, mute: 0 = mute, 1 = unmute77 */78static int stac9460_dac_mute(struct snd_ice1712 *ice, int idx,79 unsigned char mute)80{81 unsigned char new, old;82 int change;83 old = stac9460_get(ice, idx);84 new = (~mute << 7 & 0x80) | (old & ~0x80);85 change = (new != old);86 if (change)87 /* dev_dbg(ice->card->dev, "Volume register 0x%02x: 0x%02x\n", idx, new);*/88 stac9460_put(ice, idx, new);89 return change;90}91 92#define stac9460_dac_mute_info snd_ctl_boolean_mono_info93 94static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)95{96 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);97 unsigned char val;98 int idx;99 100 if (kcontrol->private_value)101 idx = STAC946X_MASTER_VOLUME;102 else103 idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;104 val = stac9460_get(ice, idx);105 ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;106 return 0;107}108 109static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)110{111 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);112 struct prodigy192_spec *spec = ice->spec;113 int idx, change;114 115 if (kcontrol->private_value)116 idx = STAC946X_MASTER_VOLUME;117 else118 idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;119 /* due to possible conflicts with stac9460_set_rate_val, mutexing */120 mutex_lock(&spec->mute_mutex);121 /*122 dev_dbg(ice->card->dev, "Mute put: reg 0x%02x, ctrl value: 0x%02x\n", idx,123 ucontrol->value.integer.value[0]);124 */125 change = stac9460_dac_mute(ice, idx, ucontrol->value.integer.value[0]);126 mutex_unlock(&spec->mute_mutex);127 return change;128}129 130/*131 * DAC volume attenuation mixer control132 */133static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)134{135 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;136 uinfo->count = 1;137 uinfo->value.integer.min = 0; /* mute */138 uinfo->value.integer.max = 0x7f; /* 0dB */139 return 0;140}141 142static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)143{144 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);145 int idx;146 unsigned char vol;147 148 if (kcontrol->private_value)149 idx = STAC946X_MASTER_VOLUME;150 else151 idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;152 vol = stac9460_get(ice, idx) & 0x7f;153 ucontrol->value.integer.value[0] = 0x7f - vol;154 155 return 0;156}157 158static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)159{160 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);161 int idx;162 unsigned char tmp, ovol, nvol;163 int change;164 165 if (kcontrol->private_value)166 idx = STAC946X_MASTER_VOLUME;167 else168 idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;169 nvol = ucontrol->value.integer.value[0];170 tmp = stac9460_get(ice, idx);171 ovol = 0x7f - (tmp & 0x7f);172 change = (ovol != nvol);173 if (change) {174 ovol = (0x7f - nvol) | (tmp & 0x80);175 /*176 dev_dbg(ice->card->dev, "DAC Volume: reg 0x%02x: 0x%02x\n",177 idx, ovol);178 */179 stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));180 }181 return change;182}183 184/*185 * ADC mute control186 */187#define stac9460_adc_mute_info snd_ctl_boolean_stereo_info188 189static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)190{191 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);192 unsigned char val;193 int i;194 195 for (i = 0; i < 2; ++i) {196 val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);197 ucontrol->value.integer.value[i] = ~val>>7 & 0x1;198 }199 200 return 0;201}202 203static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)204{205 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);206 unsigned char new, old;207 int i, reg;208 int change;209 210 for (i = 0; i < 2; ++i) {211 reg = STAC946X_MIC_L_VOLUME + i;212 old = stac9460_get(ice, reg);213 new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);214 change = (new != old);215 if (change)216 stac9460_put(ice, reg, new);217 }218 219 return change;220}221 222/*223 * ADC gain mixer control224 */225static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)226{227 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;228 uinfo->count = 2;229 uinfo->value.integer.min = 0; /* 0dB */230 uinfo->value.integer.max = 0x0f; /* 22.5dB */231 return 0;232}233 234static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)235{236 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);237 int i, reg;238 unsigned char vol;239 240 for (i = 0; i < 2; ++i) {241 reg = STAC946X_MIC_L_VOLUME + i;242 vol = stac9460_get(ice, reg) & 0x0f;243 ucontrol->value.integer.value[i] = 0x0f - vol;244 }245 246 return 0;247}248 249static int stac9460_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)250{251 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);252 int i, reg;253 unsigned char ovol, nvol;254 int change;255 256 for (i = 0; i < 2; ++i) {257 reg = STAC946X_MIC_L_VOLUME + i;258 nvol = ucontrol->value.integer.value[i] & 0x0f;259 ovol = 0x0f - stac9460_get(ice, reg);260 change = ((ovol & 0x0f) != nvol);261 if (change)262 stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));263 }264 265 return change;266}267 268static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,269 struct snd_ctl_elem_info *uinfo)270{271 static const char * const texts[2] = { "Line In", "Mic" };272 273 return snd_ctl_enum_info(uinfo, 1, 2, texts);274}275 276 277static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,278 struct snd_ctl_elem_value *ucontrol)279{280 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);281 unsigned char val;282 283 val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);284 ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;285 return 0;286}287 288static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,289 struct snd_ctl_elem_value *ucontrol)290{291 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);292 unsigned char new, old;293 int change;294 old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);295 new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);296 change = (new != old);297 if (change)298 stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);299 return change;300}301/*302 * Handler for setting correct codec rate - called when rate change is detected303 */304static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)305{306 unsigned char old, new;307 int idx;308 unsigned char changed[7];309 struct prodigy192_spec *spec = ice->spec;310 311 if (rate == 0) /* no hint - S/PDIF input is master, simply return */312 return;313 else if (rate <= 48000)314 new = 0x08; /* 256x, base rate mode */315 else if (rate <= 96000)316 new = 0x11; /* 256x, mid rate mode */317 else318 new = 0x12; /* 128x, high rate mode */319 old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);320 if (old == new)321 return;322 /* change detected, setting master clock, muting first */323 /* due to possible conflicts with mute controls - mutexing */324 mutex_lock(&spec->mute_mutex);325 /* we have to remember current mute status for each DAC */326 for (idx = 0; idx < 7 ; ++idx)327 changed[idx] = stac9460_dac_mute(ice,328 STAC946X_MASTER_VOLUME + idx, 0);329 /*dev_dbg(ice->card->dev, "Rate change: %d, new MC: 0x%02x\n", rate, new);*/330 stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);331 udelay(10);332 /* unmuting - only originally unmuted dacs -333 * i.e. those changed when muting */334 for (idx = 0; idx < 7 ; ++idx) {335 if (changed[idx])336 stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);337 }338 mutex_unlock(&spec->mute_mutex);339}340 341 342static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);343static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);344 345/*346 * mixers347 */348 349static const struct snd_kcontrol_new stac_controls[] = {350 {351 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,352 .name = "Master Playback Switch",353 .info = stac9460_dac_mute_info,354 .get = stac9460_dac_mute_get,355 .put = stac9460_dac_mute_put,356 .private_value = 1,357 .tlv = { .p = db_scale_dac }358 },359 {360 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,361 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |362 SNDRV_CTL_ELEM_ACCESS_TLV_READ),363 .name = "Master Playback Volume",364 .info = stac9460_dac_vol_info,365 .get = stac9460_dac_vol_get,366 .put = stac9460_dac_vol_put,367 .private_value = 1,368 .tlv = { .p = db_scale_dac }369 },370 {371 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,372 .name = "DAC Switch",373 .count = 6,374 .info = stac9460_dac_mute_info,375 .get = stac9460_dac_mute_get,376 .put = stac9460_dac_mute_put,377 },378 {379 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,380 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |381 SNDRV_CTL_ELEM_ACCESS_TLV_READ),382 .name = "DAC Volume",383 .count = 6,384 .info = stac9460_dac_vol_info,385 .get = stac9460_dac_vol_get,386 .put = stac9460_dac_vol_put,387 .tlv = { .p = db_scale_dac }388 },389 {390 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,391 .name = "ADC Capture Switch",392 .count = 1,393 .info = stac9460_adc_mute_info,394 .get = stac9460_adc_mute_get,395 .put = stac9460_adc_mute_put,396 397 },398 {399 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,400 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |401 SNDRV_CTL_ELEM_ACCESS_TLV_READ),402 .name = "ADC Capture Volume",403 .count = 1,404 .info = stac9460_adc_vol_info,405 .get = stac9460_adc_vol_get,406 .put = stac9460_adc_vol_put,407 .tlv = { .p = db_scale_adc }408 },409 {410 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,411 .name = "Analog Capture Input",412 .info = stac9460_mic_sw_info,413 .get = stac9460_mic_sw_get,414 .put = stac9460_mic_sw_put,415 416 },417};418 419/* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */420/* CDTO (pin 32) -- GPIO11 pin 86421 * CDTI (pin 33) -- GPIO10 pin 77422 * CCLK (pin 34) -- GPIO9 pin 76423 * CSN (pin 35) -- GPIO8 pin 75424 */425#define AK4114_ADDR 0x00 /* C1-C0: Chip Address426 * (According to datasheet fixed to “00”)427 */428 429/*430 * 4wire ak4114 protocol - writing data431 */432static void write_data(struct snd_ice1712 *ice, unsigned int gpio,433 unsigned int data, int idx)434{435 for (; idx >= 0; idx--) {436 /* drop clock */437 gpio &= ~VT1724_PRODIGY192_CCLK;438 snd_ice1712_gpio_write(ice, gpio);439 udelay(1);440 /* set data */441 if (data & (1 << idx))442 gpio |= VT1724_PRODIGY192_CDOUT;443 else444 gpio &= ~VT1724_PRODIGY192_CDOUT;445 snd_ice1712_gpio_write(ice, gpio);446 udelay(1);447 /* raise clock */448 gpio |= VT1724_PRODIGY192_CCLK;449 snd_ice1712_gpio_write(ice, gpio);450 udelay(1);451 }452}453 454/*455 * 4wire ak4114 protocol - reading data456 */457static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,458 int idx)459{460 unsigned char data = 0;461 462 for (; idx >= 0; idx--) {463 /* drop clock */464 gpio &= ~VT1724_PRODIGY192_CCLK;465 snd_ice1712_gpio_write(ice, gpio);466 udelay(1);467 /* read data */468 if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)469 data |= (1 << idx);470 udelay(1);471 /* raise clock */472 gpio |= VT1724_PRODIGY192_CCLK;473 snd_ice1712_gpio_write(ice, gpio);474 udelay(1);475 }476 return data;477}478/*479 * 4wire ak4114 protocol - starting sequence480 */481static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)482{483 unsigned int tmp;484 485 snd_ice1712_save_gpio_status(ice);486 tmp = snd_ice1712_gpio_read(ice);487 488 tmp |= VT1724_PRODIGY192_CCLK; /* high at init */489 tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */490 snd_ice1712_gpio_write(ice, tmp);491 udelay(1);492 return tmp;493}494 495/*496 * 4wire ak4114 protocol - final sequence497 */498static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)499{500 tmp |= VT1724_PRODIGY192_CS; /* raise chip select */501 snd_ice1712_gpio_write(ice, tmp);502 udelay(1);503 snd_ice1712_restore_gpio_status(ice);504}505 506/*507 * Write data to addr register of ak4114508 */509static void prodigy192_ak4114_write(void *private_data, unsigned char addr,510 unsigned char data)511{512 struct snd_ice1712 *ice = private_data;513 unsigned int tmp, addrdata;514 tmp = prodigy192_4wire_start(ice);515 addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);516 addrdata = (addrdata << 8) | data;517 write_data(ice, tmp, addrdata, 15);518 prodigy192_4wire_finish(ice, tmp);519}520 521/*522 * Read data from addr register of ak4114523 */524static unsigned char prodigy192_ak4114_read(void *private_data,525 unsigned char addr)526{527 struct snd_ice1712 *ice = private_data;528 unsigned int tmp;529 unsigned char data;530 531 tmp = prodigy192_4wire_start(ice);532 write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);533 data = read_data(ice, tmp, 7);534 prodigy192_4wire_finish(ice, tmp);535 return data;536}537 538 539static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,540 struct snd_ctl_elem_info *uinfo)541{542 static const char * const texts[2] = { "Toslink", "Coax" };543 544 return snd_ctl_enum_info(uinfo, 1, 2, texts);545}546 547 548static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,549 struct snd_ctl_elem_value *ucontrol)550{551 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);552 unsigned char val;553 554 val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);555 /* AK4114_IPS0 bit = 0 -> RX0 = Toslink556 * AK4114_IPS0 bit = 1 -> RX1 = Coax557 */558 ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;559 return 0;560}561 562static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,563 struct snd_ctl_elem_value *ucontrol)564{565 struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);566 unsigned char new, old, itemvalue;567 int change;568 569 old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);570 /* AK4114_IPS0 could be any bit */571 itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;572 573 new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);574 change = (new != old);575 if (change)576 prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);577 return change;578}579 580 581static const struct snd_kcontrol_new ak4114_controls[] = {582 {583 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,584 .name = "MIODIO IEC958 Capture Input",585 .info = ak4114_input_sw_info,586 .get = ak4114_input_sw_get,587 .put = ak4114_input_sw_put,588 589 }590};591 592 593static int prodigy192_ak4114_init(struct snd_ice1712 *ice)594{595 static const unsigned char ak4114_init_vals[] = {596 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,597 /* ice1724 expects I2S and provides clock,598 * DEM0 disables the deemphasis filter599 */600 AK4114_DIF_I24I2S | AK4114_DEM0 ,601 AK4114_TX1E,602 AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */603 0,604 0605 };606 static const unsigned char ak4114_init_txcsb[] = {607 0x41, 0x02, 0x2c, 0x00, 0x00608 };609 struct prodigy192_spec *spec = ice->spec;610 int err;611 612 err = snd_ak4114_create(ice->card,613 prodigy192_ak4114_read,614 prodigy192_ak4114_write,615 ak4114_init_vals, ak4114_init_txcsb,616 ice, &spec->ak4114);617 if (err < 0)618 return err;619 /* AK4114 in Prodigy192 cannot detect external rate correctly.620 * No reason to stop capture stream due to incorrect checks */621 spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;622 return 0;623}624 625static void stac9460_proc_regs_read(struct snd_info_entry *entry,626 struct snd_info_buffer *buffer)627{628 struct snd_ice1712 *ice = entry->private_data;629 int reg, val;630 /* registers 0x0 - 0x14 */631 for (reg = 0; reg <= 0x15; reg++) {632 val = stac9460_get(ice, reg);633 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);634 }635}636 637 638static void stac9460_proc_init(struct snd_ice1712 *ice)639{640 snd_card_ro_proc_new(ice->card, "stac9460_codec", ice,641 stac9460_proc_regs_read);642}643 644 645static int prodigy192_add_controls(struct snd_ice1712 *ice)646{647 struct prodigy192_spec *spec = ice->spec;648 unsigned int i;649 int err;650 651 for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {652 err = snd_ctl_add(ice->card,653 snd_ctl_new1(&stac_controls[i], ice));654 if (err < 0)655 return err;656 }657 if (spec->ak4114) {658 /* ak4114 is connected */659 for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {660 err = snd_ctl_add(ice->card,661 snd_ctl_new1(&ak4114_controls[i],662 ice));663 if (err < 0)664 return err;665 }666 err = snd_ak4114_build(spec->ak4114,667 NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */668 ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);669 if (err < 0)670 return err;671 }672 stac9460_proc_init(ice);673 return 0;674}675 676/*677 * check for presence of MI/ODI/O add-on card with digital inputs678 */679static int prodigy192_miodio_exists(struct snd_ice1712 *ice)680{681 682 unsigned char orig_value;683 const unsigned char test_data = 0xd1; /* random value */684 unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */685 int exists = 0;686 687 orig_value = prodigy192_ak4114_read(ice, addr);688 prodigy192_ak4114_write(ice, addr, test_data);689 if (prodigy192_ak4114_read(ice, addr) == test_data) {690 /* ak4114 seems to communicate, apparently exists */691 /* writing back original value */692 prodigy192_ak4114_write(ice, addr, orig_value);693 exists = 1;694 }695 return exists;696}697 698/*699 * initialize the chip700 */701static int prodigy192_init(struct snd_ice1712 *ice)702{703 static const unsigned short stac_inits_prodigy[] = {704 STAC946X_RESET, 0,705 STAC946X_MASTER_CLOCKING, 0x11,706/* STAC946X_MASTER_VOLUME, 0,707 STAC946X_LF_VOLUME, 0,708 STAC946X_RF_VOLUME, 0,709 STAC946X_LR_VOLUME, 0,710 STAC946X_RR_VOLUME, 0,711 STAC946X_CENTER_VOLUME, 0,712 STAC946X_LFE_VOLUME, 0,*/713 (unsigned short)-1714 };715 const unsigned short *p;716 int err = 0;717 struct prodigy192_spec *spec;718 719 /* prodigy 192 */720 ice->num_total_dacs = 6;721 ice->num_total_adcs = 2;722 ice->vt1720 = 0; /* ice1724, e.g. 23 GPIOs */723 724 spec = kzalloc(sizeof(*spec), GFP_KERNEL);725 if (!spec)726 return -ENOMEM;727 ice->spec = spec;728 mutex_init(&spec->mute_mutex);729 730 /* initialize codec */731 p = stac_inits_prodigy;732 for (; *p != (unsigned short)-1; p += 2)733 stac9460_put(ice, p[0], p[1]);734 ice->gpio.set_pro_rate = stac9460_set_rate_val;735 736 /* MI/ODI/O add on card with AK4114 */737 if (prodigy192_miodio_exists(ice)) {738 err = prodigy192_ak4114_init(ice);739 /* from this moment if err = 0 then740 * spec->ak4114 should not be null741 */742 dev_dbg(ice->card->dev,743 "AK4114 initialized with status %d\n", err);744 } else745 dev_dbg(ice->card->dev, "AK4114 not found\n");746 747 return err;748}749 750 751/*752 * Aureon boards don't provide the EEPROM data except for the vendor IDs.753 * hence the driver needs to sets up it properly.754 */755 756static const unsigned char prodigy71_eeprom[] = {757 [ICE_EEP2_SYSCONF] = 0x6a, /* 49MHz crystal, mpu401,758 * spdif-in+ 1 stereo ADC,759 * 3 stereo DACs760 */761 [ICE_EEP2_ACLINK] = 0x80, /* I2S */762 [ICE_EEP2_I2S] = 0xf8, /* vol, 96k, 24bit, 192k */763 [ICE_EEP2_SPDIF] = 0xc3, /* out-en, out-int, spdif-in */764 [ICE_EEP2_GPIO_DIR] = 0xff,765 [ICE_EEP2_GPIO_DIR1] = ~(VT1724_PRODIGY192_CDIN >> 8) ,766 [ICE_EEP2_GPIO_DIR2] = 0xbf,767 [ICE_EEP2_GPIO_MASK] = 0x00,768 [ICE_EEP2_GPIO_MASK1] = 0x00,769 [ICE_EEP2_GPIO_MASK2] = 0x00,770 [ICE_EEP2_GPIO_STATE] = 0x00,771 [ICE_EEP2_GPIO_STATE1] = 0x00,772 [ICE_EEP2_GPIO_STATE2] = 0x10, /* GPIO20: 0 = CD drive dig. input773 * passthrough,774 * 1 = SPDIF-OUT from ice1724775 */776};777 778 779/* entry point */780struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] = {781 {782 .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,783 .name = "Audiotrak Prodigy 192",784 .model = "prodigy192",785 .chip_init = prodigy192_init,786 .build_controls = prodigy192_add_controls,787 .eeprom_size = sizeof(prodigy71_eeprom),788 .eeprom_data = prodigy71_eeprom,789 },790 { } /* terminator */791};792