diff options
Diffstat (limited to 'sound/pci/ice1712/amp.c')
| -rw-r--r-- | sound/pci/ice1712/amp.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sound/pci/ice1712/amp.c b/sound/pci/ice1712/amp.c new file mode 100644 index 00000000000..779951725e1 --- /dev/null +++ b/sound/pci/ice1712/amp.c @@ -0,0 +1,65 @@ +/* + * 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 "amp.h" + + +static int __devinit snd_vt1724_amp_init(ice1712_t *ice) +{ + /* only use basic functionality for now */ + + ice->num_total_dacs = 2; /* only PSDOUT0 is connected */ + ice->num_total_adcs = 2; + + return 0; +} + +static int __devinit snd_vt1724_amp_add_controls(ice1712_t *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_AUDIO2000, + .name = "AMP Ltd AUDIO2000", + .model = "amp2000", + .chip_init = snd_vt1724_amp_init, + .build_controls = snd_vt1724_amp_add_controls, + }, + { } /* terminator */ +}; + |