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/*
Copyright (C) 2002 Anthony Van Groningen
Parts based on source code taken from the
"Env24 chipset (ICE1712) control utility" that is
Copyright (C) 2000 by 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "hardware.h"
#include "alsa_driver.h"
#include "ice1712.h"
#include "internal.h"
static int
ice1712_hw_monitor_toggle(jack_hardware_t *hw, int idx, int onoff)
{
ice1712_t *h = (ice1712_t *) hw->private;
snd_ctl_elem_value_t *val;
int err;
snd_ctl_elem_value_alloca (&val);
snd_ctl_elem_value_set_interface (val, SND_CTL_ELEM_IFACE_MIXER);
if (idx >= 8) {
snd_ctl_elem_value_set_name (val, SPDIF_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index (val, idx - 8);
} else {
snd_ctl_elem_value_set_name (val, ANALOG_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index (val, idx);
}
if (onoff) {
snd_ctl_elem_value_set_enumerated (val, 0, idx + 1);
} else {
snd_ctl_elem_value_set_enumerated (val, 0, 0);
}
if ((err = snd_ctl_elem_write (h->driver->ctl_handle, val)) != 0) {
jack_error ("ALSA/ICE1712: (%d) cannot set input monitoring (%s)",
idx,snd_strerror (err));
return -1;
}
return 0;
}
static int
ice1712_set_input_monitor_mask (jack_hardware_t *hw, unsigned long mask)
{
int idx;
ice1712_t *h = (ice1712_t *) hw->private;
for (idx = 0; idx < 10; idx++) {
if (h->active_channels & (1<<idx)) {
ice1712_hw_monitor_toggle (hw, idx, mask & (1<<idx) ? 1 : 0);
}
}
hw->input_monitor_mask = mask;
return 0;
}
static int
ice1712_change_sample_clock (jack_hardware_t *hw, SampleClockMode mode)
{
return -1;
}
static void
ice1712_release (jack_hardware_t *hw)
{
ice1712_t *h = (ice1712_t *) hw->private;
if (h == 0)
return;
if (h->eeprom)
free(h->eeprom);
free(h);
}
jack_hardware_t *
jack_alsa_ice1712_hw_new (alsa_driver_t *driver)
{
jack_hardware_t *hw;
ice1712_t *h;
snd_ctl_elem_value_t *val;
int err;
hw = (jack_hardware_t *) malloc (sizeof (jack_hardware_t));
hw->capabilities = Cap_HardwareMonitoring;
hw->input_monitor_mask = 0;
hw->private = 0;
hw->set_input_monitor_mask = ice1712_set_input_monitor_mask;
hw->change_sample_clock = ice1712_change_sample_clock;
hw->release = ice1712_release;
h = (ice1712_t *) malloc (sizeof (ice1712_t));
h->driver = driver;
/* Get the EEPROM (adopted from envy24control) */
h->eeprom = (ice1712_eeprom_t *) malloc (sizeof (ice1712_eeprom_t));
snd_ctl_elem_value_alloca (&val);
snd_ctl_elem_value_set_interface (val, SND_CTL_ELEM_IFACE_CARD);
snd_ctl_elem_value_set_name (val, "ICE1712 EEPROM");
if ((err = snd_ctl_elem_read (driver->ctl_handle, val)) < 0) {
jack_error( "ALSA/ICE1712: Unable to read EEPROM contents (%s)\n", snd_strerror (err));
/* Recover? */
}
memcpy(h->eeprom, snd_ctl_elem_value_get_bytes(val), 32);
/* determine number of pro ADC's. We're asumming that there is at least one stereo pair.
Should check this first, but how? */
switch((h->eeprom->codec & 0xCU) >> 2) {
case 0:
h->active_channels = 0x3U;
break;
case 1:
h->active_channels = 0xfU;
break;
case 2:
h->active_channels = 0x3fU;
break;
case 3:
h->active_channels = 0xffU;
break;
}
/* check for SPDIF In's */
if (h->eeprom->spdif & 0x1U) {
h->active_channels |= 0x300U;
}
hw->private = h;
return hw;
}
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