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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [sound/] [pci/] [ice1712/] [juli.c] - Rev 3
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/* * ALSA driver for ICEnsemble VT1724 (Envy24HT) * * Lowlevel functions for ESI Juli@ cards * * Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <sound/driver.h> #include <asm/io.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/slab.h> #include <sound/core.h> #include "ice1712.h" #include "envy24ht.h" #include "juli.h" /* * chip addresses on I2C bus */ #define AK4114_ADDR 0x20 /* S/PDIF receiver */ #define AK4358_ADDR 0x22 /* DAC */ /* * GPIO pins */ #define GPIO_FREQ_MASK (3<<0) #define GPIO_FREQ_32KHZ (0<<0) #define GPIO_FREQ_44KHZ (1<<0) #define GPIO_FREQ_48KHZ (2<<0) #define GPIO_MULTI_MASK (3<<2) #define GPIO_MULTI_4X (0<<2) #define GPIO_MULTI_2X (1<<2) #define GPIO_MULTI_1X (2<<2) /* also external */ #define GPIO_MULTI_HALF (3<<2) #define GPIO_INTERNAL_CLOCK (1<<4) #define GPIO_ANALOG_PRESENT (1<<5) /* RO only: 0 = present */ #define GPIO_RXMCLK_SEL (1<<7) /* must be 0 */ #define GPIO_AK5385A_CKS0 (1<<8) #define GPIO_AK5385A_DFS0 (1<<9) /* swapped with DFS1 according doc? */ #define GPIO_AK5385A_DFS1 (1<<10) #define GPIO_DIGOUT_MONITOR (1<<11) /* 1 = active */ #define GPIO_DIGIN_MONITOR (1<<12) /* 1 = active */ #define GPIO_ANAIN_MONITOR (1<<13) /* 1 = active */ #define GPIO_AK5385A_MCLK (1<<14) /* must be 0 */ #define GPIO_MUTE_CONTROL (1<<15) /* 0 = off, 1 = on */ static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val) { snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg, val); } static unsigned char juli_ak4114_read(void *private_data, unsigned char reg) { return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg); } /* * AK4358 section */ static void juli_akm_lock(struct snd_akm4xxx *ak, int chip) { } static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip) { } static void juli_akm_write(struct snd_akm4xxx *ak, int chip, unsigned char addr, unsigned char data) { struct snd_ice1712 *ice = ak->private_data[0]; snd_assert(chip == 0, return); snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data); } /* * change the rate of envy24HT, AK4358 */ static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate) { unsigned char old, tmp, dfs; if (rate == 0) /* no hint - S/PDIF input is master, simply return */ return; /* adjust DFS on codecs */ if (rate > 96000) dfs = 2; else if (rate > 48000) dfs = 1; else dfs = 0; tmp = snd_akm4xxx_get(ak, 0, 2); old = (tmp >> 4) & 0x03; if (old == dfs) return; /* reset DFS */ snd_akm4xxx_reset(ak, 1); tmp = snd_akm4xxx_get(ak, 0, 2); tmp &= ~(0x03 << 4); tmp |= dfs << 4; snd_akm4xxx_set(ak, 0, 2, tmp); snd_akm4xxx_reset(ak, 0); } static struct snd_akm4xxx akm_juli_dac __devinitdata = { .type = SND_AK4358, .num_dacs = 2, .ops = { .lock = juli_akm_lock, .unlock = juli_akm_unlock, .write = juli_akm_write, .set_rate_val = juli_akm_set_rate_val } }; static int __devinit juli_add_controls(struct snd_ice1712 *ice) { int err; err = snd_ice1712_akm4xxx_build_controls(ice); if (err < 0) return err; /* only capture SPDIF over AK4114 */ err = snd_ak4114_build(ice->spec.juli.ak4114, NULL, ice->pcm_pro->streams[SNDRV_PCM_STREAM_CAPTURE].substream); if (err < 0) return err; return 0; } /* * initialize the chip */ static int __devinit juli_init(struct snd_ice1712 *ice) { static const unsigned char ak4114_init_vals[] = { /* AK4117_REG_PWRDN */ AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1, /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S, /* AK4114_REG_IO0 */ AK4114_TX1E, /* AK4114_REG_IO1 */ AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1), /* AK4114_REG_INT0_MASK */ 0, /* AK4114_REG_INT1_MASK */ 0 }; static const unsigned char ak4114_init_txcsb[] = { 0x41, 0x02, 0x2c, 0x00, 0x00 }; int err; struct snd_akm4xxx *ak; err = snd_ak4114_create(ice->card, juli_ak4114_read, juli_ak4114_write, ak4114_init_vals, ak4114_init_txcsb, ice, &ice->spec.juli.ak4114); if (err < 0) return err; #if 0 /* it seems that the analog doughter board detection does not work reliably, so force the analog flag; it should be very rare to use Juli@ without the analog doughter board */ ice->spec.juli.analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1; #else ice->spec.juli.analog = 1; #endif if (ice->spec.juli.analog) { printk(KERN_INFO "juli@: analog I/O detected\n"); ice->num_total_dacs = 2; ice->num_total_adcs = 2; ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL); if (! ak) return -ENOMEM; ice->akm_codecs = 1; if ((err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice)) < 0) return err; } return 0; } /* * Juli@ boards don't provide the EEPROM data except for the vendor IDs. * hence the driver needs to sets up it properly. */ static unsigned char juli_eeprom[] __devinitdata = { [ICE_EEP2_SYSCONF] = 0x20, /* clock 512, mpu401, 1xADC, 1xDACs */ [ICE_EEP2_ACLINK] = 0x80, /* I2S */ [ICE_EEP2_I2S] = 0xf8, /* vol, 96k, 24bit, 192k */ [ICE_EEP2_SPDIF] = 0xc3, /* out-en, out-int, spdif-in */ [ICE_EEP2_GPIO_DIR] = 0x9f, [ICE_EEP2_GPIO_DIR1] = 0xff, [ICE_EEP2_GPIO_DIR2] = 0x7f, [ICE_EEP2_GPIO_MASK] = 0x9f, [ICE_EEP2_GPIO_MASK1] = 0xff, [ICE_EEP2_GPIO_MASK2] = 0x7f, [ICE_EEP2_GPIO_STATE] = 0x16, /* internal clock, multiple 1x, 48kHz */ [ICE_EEP2_GPIO_STATE1] = 0x80, /* mute */ [ICE_EEP2_GPIO_STATE2] = 0x00, }; /* entry point */ struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = { { .subvendor = VT1724_SUBDEVICE_JULI, .name = "ESI Juli@", .model = "juli", .chip_init = juli_init, .build_controls = juli_add_controls, .eeprom_size = sizeof(juli_eeprom), .eeprom_data = juli_eeprom, }, { } /* terminator */ };