| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ALSA driver for ICEnsemble VT1724 (Envy24HT) |
| 3 | * |
| 4 | * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000 |
| 5 | * |
| 6 | * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz> |
| 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 | #include <sound/driver.h> |
| 25 | #include <asm/io.h> |
| 26 | #include <linux/delay.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/init.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <sound/core.h> |
| 31 | |
| 32 | #include "ice1712.h" |
| 33 | #include "amp.h" |
| 34 | |
| 35 | |
| 36 | static int __devinit snd_vt1724_amp_init(ice1712_t *ice) |
| 37 | { |
| 38 | /* only use basic functionality for now */ |
| 39 | |
| 40 | ice->num_total_dacs = 2; /* only PSDOUT0 is connected */ |
| 41 | ice->num_total_adcs = 2; |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | static int __devinit snd_vt1724_amp_add_controls(ice1712_t *ice) |
| 47 | { |
| 48 | /* we use pins 39 and 41 of the VT1616 for left and right read outputs */ |
| 49 | snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000); |
| 50 | return 0; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | /* entry point */ |
| 55 | struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = { |
| 56 | { |
| 57 | .subvendor = VT1724_SUBDEVICE_AUDIO2000, |
| 58 | .name = "AMP Ltd AUDIO2000", |
| 59 | .model = "amp2000", |
| 60 | .chip_init = snd_vt1724_amp_init, |
| 61 | .build_controls = snd_vt1724_amp_add_controls, |
| 62 | }, |
| 63 | { } /* terminator */ |
| 64 | }; |
| 65 | |