/* * ALSA driver for ICEnsemble VT1724 (Envy24HT) * * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000 * * Copyright (c) 2000 Jaroslav Kysela <perex@suse.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 "amp.h" static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) { unsigned short cval; cval = (reg << 9) | val; snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff); } static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice) { static unsigned short wm_inits[] = { WM_ATTEN_L, 0x0000, /* 0 db */ WM_ATTEN_R, 0x0000, /* 0 db */ WM_DAC_CTRL, 0x0008, /* 24bit I2S */ WM_INT_CTRL, 0x0001, /* 24bit I2S */ }; unsigned int i; /* only use basic functionality for now */ ice->num_total_dacs = 2; /* only PSDOUT0 is connected */ ice->num_total_adcs = 2; /* Chaintech AV-710 has another codecs, which need initialization */ /* initialize WM8728 codec */ if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) { for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2) wm_put(ice, wm_inits[i], wm_inits[i+1]); } return 0; } static int __devinit snd_vt1724_amp_add_controls(struct snd_ice1712 *ice) { /* we use pins 39 and 41 of the VT1616 for left and right read outputs */ snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000); return 0; } /* entry point */ struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = { { .subvendor = VT1724_SUBDEVICE_AV710, .name = "Chaintech AV-710", .model = "av710", .chip_init = snd_vt1724_amp_init, .build_controls = snd_vt1724_amp_add_controls, }, { .subvendor = VT1724_SUBDEVICE_AUDIO2000, .name = "AMP Ltd AUDIO2000", .model = "amp2000", .chip_init = snd_vt1724_amp_init, .build_controls = snd_vt1724_amp_add_controls, }, { } /* terminator */ };