/*
* ALSA lisp implementation - sound related commands
* Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "../control/control_local.h"
struct acall_table {
const char *name;
struct alisp_object * (*func) (struct alisp_instance *instance, struct acall_table * item, struct alisp_object * args);
void * xfunc;
const char *prefix;
};
/*
* helper functions
*/
static inline int get_integer(struct alisp_object * obj)
{
if (alisp_compare_type(obj, ALISP_OBJ_INTEGER))
return obj->value.i;
return 0;
}
static inline const void *get_pointer(struct alisp_object * obj)
{
if (alisp_compare_type(obj, ALISP_OBJ_POINTER))
return obj->value.ptr;
return NULL;
}
static const char *get_string(struct alisp_object * obj, const char * deflt)
{
if (obj == &alsa_lisp_t)
return "true";
if (alisp_compare_type(obj, ALISP_OBJ_STRING) ||
alisp_compare_type(obj, ALISP_OBJ_IDENTIFIER))
return obj->value.s;
return deflt;
}
struct flags {
const char *key;
unsigned int mask;
};
static unsigned int get_flags(struct alisp_instance * instance,
struct alisp_object * obj,
const struct flags * flags,
unsigned int deflt)
{
const char *key;
int invert;
unsigned int result;
const struct flags *ptr;
struct alisp_object *n;
if (obj == &alsa_lisp_nil)
return deflt;
result = deflt;
do {
key = get_string(obj, NULL);
if (key) {
invert = key[0] == '!';
key += invert;
ptr = flags;
while (ptr->key) {
if (!strcmp(ptr->key, key)) {
if (invert)
result &= ~ptr->mask;
else
result |= ptr->mask;
break;
}
ptr++;
}
}
delete_tree(instance, car(obj));
obj = cdr(n = obj);
delete_object(instance, n);
} while (obj != &alsa_lisp_nil);
return result;
}
static const void *get_ptr(struct alisp_instance * instance,
struct alisp_object * obj,
const char *_ptr_id)
{
const char *ptr_id;
const void *ptr;
ptr_id = get_string(car(obj), NULL);
if (ptr_id == NULL) {
delete_tree(instance, obj);
return NULL;
}
if (strcmp(ptr_id, _ptr_id)) {
delete_tree(instance, obj);
return NULL;
}
ptr = get_pointer(cdr(obj));
delete_tree(instance, obj);
return ptr;
}
static struct alisp_object * new_lexpr(struct alisp_instance * instance, int err)
{
struct alisp_object * lexpr;
lexpr = new_object(instance, ALISP_OBJ_CONS);
if (lexpr == NULL)
return NULL;
lexpr->value.c.car = new_integer(instance, err);
if (lexpr->value.c.car == NULL) {
delete_object(instance, lexpr);
return NULL;
}
lexpr->value.c.cdr = new_object(instance, ALISP_OBJ_CONS);
if (lexpr->value.c.cdr == NULL) {
delete_object(instance, lexpr->value.c.car);
delete_object(instance, lexpr);
return NULL;
}
return lexpr;
}
static struct alisp_object * add_cons(struct alisp_instance * instance,
struct alisp_object *lexpr,
int cdr, const char *id,
struct alisp_object *obj)
{
struct alisp_object * p1, * p2;
if (lexpr == NULL || obj == NULL) {
delete_tree(instance, obj);
return NULL;
}
if (cdr) {
p1 = lexpr->value.c.cdr = new_object(instance, ALISP_OBJ_CONS);
} else {
p1 = lexpr->value.c.car = new_object(instance, ALISP_OBJ_CONS);
}
lexpr = p1;
if (p1 == NULL) {
delete_tree(instance, obj);
return NULL;
}
p1->value.c.car = new_object(instance, ALISP_OBJ_CONS);
if ((p2 = p1->value.c.car) == NULL)
goto __err;
p2->value.c.car = new_string(instance, id);
if (p2->value.c.car == NULL) {
__err:
if (cdr)
lexpr->value.c.cdr = NULL;
else
lexpr->value.c.car = NULL;
delete_tree(instance, p1);
delete_tree(instance, obj);
return NULL;
}
p2->value.c.cdr = obj;
return lexpr;
}
static struct alisp_object * add_cons2(struct alisp_instance * instance,
struct alisp_object *lexpr,
int cdr, struct alisp_object *obj)
{
struct alisp_object * p1;
if (lexpr == NULL || obj == NULL) {
delete_tree(instance, obj);
return NULL;
}
if (cdr) {
p1 = lexpr->value.c.cdr = new_object(instance, ALISP_OBJ_CONS);
} else {
p1 = lexpr->value.c.car = new_object(instance, ALISP_OBJ_CONS);
}
lexpr = p1;
if (p1 == NULL) {
delete_tree(instance, obj);
return NULL;
}
p1->value.c.car = obj;
return lexpr;
}
static struct alisp_object * new_result1(struct alisp_instance * instance,
int err, const char *ptr_id, void *ptr)
{
struct alisp_object * lexpr, * p1;
if (err < 0)
ptr = NULL;
lexpr = new_object(instance, ALISP_OBJ_CONS);
if (lexpr == NULL)
return NULL;
lexpr->value.c.car = new_integer(instance, err);
if (lexpr->value.c.car == NULL) {
delete_object(instance, lexpr);
return NULL;
}
p1 = add_cons(instance, lexpr, 1, ptr_id, new_pointer(instance, ptr));
if (p1 == NULL) {
delete_object(instance, lexpr);
return NULL;
}
return lexpr;
}
static struct alisp_object * new_result2(struct alisp_instance * instance,
int err, int val)
{
struct alisp_object * lexpr, * p1;
if (err < 0)
val = 0;
lexpr = new_lexpr(instance, err);
if (lexpr == NULL)
return NULL;
p1 = lexpr->value.c.cdr;
p1->value.c.car = new_integer(instance, val);
if (p1->value.c.car == NULL) {
delete_object(instance, lexpr);
return NULL;
}
return lexpr;
}
static struct alisp_object * new_result3(struct alisp_instance * instance,
int err, const char *str)
{
struct alisp_object * lexpr, * p1;
if (err < 0)
str = "";
lexpr = new_lexpr(instance, err);
if (lexpr == NULL)
return NULL;
p1 = lexpr->value.c.cdr;
p1->value.c.car = new_string(instance, str);
if (p1->value.c.car == NULL) {
delete_object(instance, lexpr);
return NULL;
}
return lexpr;
}
/*
* macros
*/
/*
* HCTL functions
*/
typedef int (*snd_int_pp_strp_int_t)(void **rctl, const char *name, int mode);
typedef int (*snd_int_pp_p_t)(void **rctl, void *handle);
typedef int (*snd_int_p_t)(void *rctl);
typedef char * (*snd_str_p_t)(void *rctl);
typedef int (*snd_int_intp_t)(int *val);
typedef int (*snd_int_str_t)(const char *str);
typedef int (*snd_int_int_strp_t)(int val, char **str);
typedef void *(*snd_p_p_t)(void *handle);
static struct alisp_object * FA_int_pp_strp_int(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
const char *name;
int err, mode;
void *handle;
struct alisp_object *p1, *p2;
static const struct flags flags[] = {
{ "nonblock", SND_CTL_NONBLOCK },
{ "async", SND_CTL_ASYNC },
{ "readonly", SND_CTL_READONLY },
{ NULL, 0 }
};
name = get_string(p1 = eval(instance, car(args)), NULL);
if (name == NULL)
return &alsa_lisp_nil;
mode = get_flags(instance, p2 = eval(instance, car(cdr(args))), flags, 0);
delete_tree(instance, cdr(cdr(args)));
delete_object(instance, cdr(args));
delete_object(instance, args);
delete_tree(instance, p2);
err = ((snd_int_pp_strp_int_t)item->xfunc)(&handle, name, mode);
delete_tree(instance, p1);
return new_result1(instance, err, item->prefix, handle);
}
static struct alisp_object * FA_int_pp_p(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
int err;
void *handle;
const char *prefix1;
struct alisp_object *p1;
if (item->xfunc == &snd_hctl_open_ctl)
prefix1 = "ctl";
else {
delete_tree(instance, args);
return &alsa_lisp_nil;
}
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (void *)get_ptr(instance, p1, prefix1);
if (handle == NULL)
return &alsa_lisp_nil;
err = ((snd_int_pp_p_t)item->xfunc)(&handle, handle);
return new_result1(instance, err, item->prefix, handle);
}
static struct alisp_object * FA_p_p(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
void *handle;
const char *prefix1;
struct alisp_object * p1;
if (item->xfunc == &snd_hctl_first_elem ||
item->xfunc == &snd_hctl_last_elem ||
item->xfunc == &snd_hctl_elem_next ||
item->xfunc == &snd_hctl_elem_prev)
prefix1 = "hctl_elem";
else if (item->xfunc == &snd_hctl_ctl)
prefix1 = "ctl";
else {
delete_tree(instance, args);
return &alsa_lisp_nil;
}
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (void *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
handle = ((snd_p_p_t)item->xfunc)(handle);
return new_cons_pointer(instance, prefix1, handle);
}
static struct alisp_object * FA_int_p(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
void *handle;
struct alisp_object * p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (void *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
return new_integer(instance, ((snd_int_p_t)item->xfunc)(handle));
}
static struct alisp_object * FA_str_p(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
void *handle;
struct alisp_object * p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (void *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
return new_string(instance, ((snd_str_p_t)item->xfunc)(handle));
}
static struct alisp_object * FA_int_intp(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
int val, err;
struct alisp_object * p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
if (!alisp_compare_type(p1, ALISP_OBJ_INTEGER)) {
delete_tree(instance, p1);
return &alsa_lisp_nil;
}
val = p1->value.i;
delete_tree(instance, p1);
err = ((snd_int_intp_t)item->xfunc)(&val);
return new_result2(instance, err, val);
}
static struct alisp_object * FA_int_str(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
int err;
struct alisp_object * p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
if (!alisp_compare_type(p1, ALISP_OBJ_STRING) &&
!alisp_compare_type(p1, ALISP_OBJ_IDENTIFIER)) {
delete_tree(instance, p1);
return &alsa_lisp_nil;
}
err = ((snd_int_str_t)item->xfunc)(p1->value.s);
delete_tree(instance, p1);
return new_integer(instance, err);
}
static struct alisp_object * FA_int_int_strp(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
int err;
char *str;
long val;
struct alisp_object * p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
if (!alisp_compare_type(p1, ALISP_OBJ_INTEGER)) {
delete_tree(instance, p1);
return &alsa_lisp_nil;
}
val = p1->value.i;
delete_tree(instance, p1);
err = ((snd_int_int_strp_t)item->xfunc)(val, &str);
return new_result3(instance, err, str);
}
static struct alisp_object * FA_card_info(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_ctl_t *handle;
struct alisp_object * lexpr, * p1;
snd_ctl_card_info_t info = {0};
int err;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (snd_ctl_t *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
err = snd_ctl_card_info(handle, &info);
lexpr = new_lexpr(instance, err);
if (err < 0)
return lexpr;
p1 = add_cons(instance, lexpr->value.c.cdr, 0, "id", new_string(instance, snd_ctl_card_info_get_id(&info)));
p1 = add_cons(instance, p1, 1, "driver", new_string(instance, snd_ctl_card_info_get_driver(&info)));
p1 = add_cons(instance, p1, 1, "name", new_string(instance, snd_ctl_card_info_get_name(&info)));
p1 = add_cons(instance, p1, 1, "longname", new_string(instance, snd_ctl_card_info_get_longname(&info)));
p1 = add_cons(instance, p1, 1, "mixername", new_string(instance, snd_ctl_card_info_get_mixername(&info)));
p1 = add_cons(instance, p1, 1, "components", new_string(instance, snd_ctl_card_info_get_components(&info)));
if (p1 == NULL) {
delete_tree(instance, lexpr);
return NULL;
}
return lexpr;
}
static struct alisp_object * create_ctl_elem_id(struct alisp_instance * instance, snd_ctl_elem_id_t * id, struct alisp_object * cons)
{
cons = add_cons(instance, cons, 0, "numid", new_integer(instance, snd_ctl_elem_id_get_numid(id)));
cons = add_cons(instance, cons, 1, "iface", new_string(instance, snd_ctl_elem_iface_name(snd_ctl_elem_id_get_interface(id))));
cons = add_cons(instance, cons, 1, "dev", new_integer(instance, snd_ctl_elem_id_get_device(id)));
cons = add_cons(instance, cons, 1, "subdev", new_integer(instance, snd_ctl_elem_id_get_subdevice(id)));
cons = add_cons(instance, cons, 1, "name", new_string(instance, snd_ctl_elem_id_get_name(id)));
cons = add_cons(instance, cons, 1, "index", new_integer(instance, snd_ctl_elem_id_get_index(id)));
return cons;
}
static int parse_ctl_elem_id(struct alisp_instance * instance,
struct alisp_object * cons,
snd_ctl_elem_id_t * id)
{
struct alisp_object *p1;
const char *xid;
if (cons == NULL)
return -ENOMEM;
snd_ctl_elem_id_clear(id);
id->numid = 0;
do {
p1 = car(cons);
if (alisp_compare_type(p1, ALISP_OBJ_CONS)) {
xid = get_string(p1->value.c.car, NULL);
if (xid == NULL) {
/* noop */
} else if (!strcmp(xid, "numid")) {
snd_ctl_elem_id_set_numid(id, get_integer(p1->value.c.cdr));
} else if (!strcmp(xid, "iface")) {
snd_ctl_elem_id_set_interface(id, snd_config_get_ctl_iface_ascii(get_string(p1->value.c.cdr, "0")));
} else if (!strcmp(xid, "dev")) {
snd_ctl_elem_id_set_device(id, get_integer(p1->value.c.cdr));
} else if (!strcmp(xid, "subdev")) {
snd_ctl_elem_id_set_subdevice(id, get_integer(p1->value.c.cdr));
} else if (!strcmp(xid, "name")) {
snd_ctl_elem_id_set_name(id, get_string(p1->value.c.cdr, "?"));
} else if (!strcmp(xid, "index")) {
snd_ctl_elem_id_set_index(id, get_integer(p1->value.c.cdr));
}
}
delete_tree(instance, p1);
cons = cdr(p1 = cons);
delete_object(instance, p1);
} while (cons != &alsa_lisp_nil);
return 0;
}
static struct alisp_object * FA_hctl_find_elem(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_hctl_t *handle;
snd_ctl_elem_id_t id = {0};
struct alisp_object *p1;
handle = (snd_hctl_t *)get_ptr(instance, car(args), item->prefix);
if (handle == NULL) {
delete_tree(instance, cdr(args));
delete_object(instance, args);
return &alsa_lisp_nil;
}
p1 = car(cdr(args));
delete_tree(instance, cdr(cdr(args)));
delete_object(instance, cdr(args));
delete_object(instance, args);
if (parse_ctl_elem_id(instance, eval(instance, p1), &id) < 0)
return &alsa_lisp_nil;
return new_cons_pointer(instance, "hctl_elem", snd_hctl_find_elem(handle, &id));
}
static struct alisp_object * FA_hctl_elem_info(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_hctl_elem_t *handle;
struct alisp_object * lexpr, * p1, * p2;
snd_ctl_elem_info_t info = {0};
snd_ctl_elem_id_t id = {0};
snd_ctl_elem_type_t type;
int err;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (snd_hctl_elem_t *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
err = snd_hctl_elem_info(handle, &info);
lexpr = new_lexpr(instance, err);
if (err < 0)
return lexpr;
type = snd_ctl_elem_info_get_type(&info);
p1 = add_cons(instance, lexpr->value.c.cdr, 0, "id", p2 = new_object(instance, ALISP_OBJ_CONS));
snd_ctl_elem_info_get_id(&info, &id);
if (create_ctl_elem_id(instance, &id, p2) == NULL) {
delete_tree(instance, lexpr);
return NULL;
}
p1 = add_cons(instance, p1, 1, "type", new_string(instance, snd_ctl_elem_type_name(type)));
p1 = add_cons(instance, p1, 1, "readable", new_integer(instance, snd_ctl_elem_info_is_readable(&info)));
p1 = add_cons(instance, p1, 1, "writable", new_integer(instance, snd_ctl_elem_info_is_writable(&info)));
p1 = add_cons(instance, p1, 1, "volatile", new_integer(instance, snd_ctl_elem_info_is_volatile(&info)));
p1 = add_cons(instance, p1, 1, "inactive", new_integer(instance, snd_ctl_elem_info_is_inactive(&info)));
p1 = add_cons(instance, p1, 1, "locked", new_integer(instance, snd_ctl_elem_info_is_locked(&info)));
p1 = add_cons(instance, p1, 1, "isowner", new_integer(instance, snd_ctl_elem_info_is_owner(&info)));
p1 = add_cons(instance, p1, 1, "owner", new_integer(instance, snd_ctl_elem_info_get_owner(&info)));
p1 = add_cons(instance, p1, 1, "count", new_integer(instance, snd_ctl_elem_info_get_count(&info)));
err = INTERNAL(snd_ctl_elem_info_get_dimensions)(&info);
if (err > 0) {
int idx;
p1 = add_cons(instance, p1, 1, "dimensions", p2 = new_object(instance, ALISP_OBJ_CONS));
for (idx = 0; idx < err; idx++)
p2 = add_cons2(instance, p2, idx > 0, new_integer(instance, INTERNAL(snd_ctl_elem_info_get_dimension)(&info, idx)));
}
switch (type) {
case SND_CTL_ELEM_TYPE_ENUMERATED: {
unsigned int items, item;
items = snd_ctl_elem_info_get_items(&info);
p1 = add_cons(instance, p1, 1, "items", p2 = new_object(instance, ALISP_OBJ_CONS));
for (item = 0; item < items; item++) {
snd_ctl_elem_info_set_item(&info, item);
err = snd_hctl_elem_info(handle, &info);
if (err < 0) {
p2 = add_cons2(instance, p2, item, &alsa_lisp_nil);
} else {
p2 = add_cons2(instance, p2, item, new_string(instance, snd_ctl_elem_info_get_item_name(&info)));
}
}
break;
}
case SND_CTL_ELEM_TYPE_INTEGER:
p1 = add_cons(instance, p1, 1, "min", new_integer(instance, snd_ctl_elem_info_get_min(&info)));
p1 = add_cons(instance, p1, 1, "max", new_integer(instance, snd_ctl_elem_info_get_max(&info)));
p1 = add_cons(instance, p1, 1, "step", new_integer(instance, snd_ctl_elem_info_get_step(&info)));
break;
case SND_CTL_ELEM_TYPE_INTEGER64:
p1 = add_cons(instance, p1, 1, "min64", new_float(instance, snd_ctl_elem_info_get_min64(&info)));
p1 = add_cons(instance, p1, 1, "max64", new_float(instance, snd_ctl_elem_info_get_max64(&info)));
p1 = add_cons(instance, p1, 1, "step64", new_float(instance, snd_ctl_elem_info_get_step64(&info)));
break;
default:
break;
}
if (p1 == NULL) {
delete_tree(instance, lexpr);
return NULL;
}
return lexpr;
}
static struct alisp_object * FA_hctl_elem_read(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_hctl_elem_t *handle;
struct alisp_object * lexpr, * p1 = NULL, * obj;
snd_ctl_elem_info_t info = {0};
snd_ctl_elem_value_t value = {0};
snd_ctl_elem_type_t type;
unsigned int idx, count;
int err;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (snd_hctl_elem_t *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
err = snd_hctl_elem_info(handle, &info);
if (err >= 0)
err = snd_hctl_elem_read(handle, &value);
lexpr = new_lexpr(instance, err);
if (err < 0)
return lexpr;
type = snd_ctl_elem_info_get_type(&info);
count = snd_ctl_elem_info_get_count(&info);
if (type == SND_CTL_ELEM_TYPE_IEC958) {
count = sizeof(snd_aes_iec958_t);
type = SND_CTL_ELEM_TYPE_BYTES;
}
for (idx = 0; idx < count; idx++) {
switch (type) {
case SND_CTL_ELEM_TYPE_BOOLEAN:
obj = new_integer(instance, snd_ctl_elem_value_get_boolean(&value, idx));
break;
case SND_CTL_ELEM_TYPE_INTEGER:
obj = new_integer(instance, snd_ctl_elem_value_get_integer(&value, idx));
break;
case SND_CTL_ELEM_TYPE_INTEGER64:
obj = new_integer(instance, snd_ctl_elem_value_get_integer64(&value, idx));
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
obj = new_integer(instance, snd_ctl_elem_value_get_enumerated(&value, idx));
break;
case SND_CTL_ELEM_TYPE_BYTES:
obj = new_integer(instance, snd_ctl_elem_value_get_byte(&value, idx));
break;
default:
obj = NULL;
break;
}
if (idx == 0) {
p1 = add_cons2(instance, lexpr->value.c.cdr, 0, obj);
} else {
p1 = add_cons2(instance, p1, 1, obj);
}
}
if (p1 == NULL) {
delete_tree(instance, lexpr);
return &alsa_lisp_nil;
}
return lexpr;
}
static struct alisp_object * FA_hctl_elem_write(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_hctl_elem_t *handle;
struct alisp_object * p1 = NULL, * obj;
snd_ctl_elem_info_t info = {0};
snd_ctl_elem_value_t value = {0};
snd_ctl_elem_type_t type;
unsigned int idx, count;
int err;
p1 = car(cdr(args));
obj = eval(instance, car(args));
delete_tree(instance, cdr(cdr(args)));
delete_object(instance, cdr(args));
delete_object(instance, args);
handle = (snd_hctl_elem_t *)get_ptr(instance, obj, item->prefix);
if (handle == NULL) {
delete_tree(instance, p1);
return &alsa_lisp_nil;
}
err = snd_hctl_elem_info(handle, &info);
if (err < 0) {
delete_tree(instance, p1);
return new_integer(instance, err);
}
type = snd_ctl_elem_info_get_type(&info);
count = snd_ctl_elem_info_get_count(&info);
if (type == SND_CTL_ELEM_TYPE_IEC958) {
count = sizeof(snd_aes_iec958_t);
type = SND_CTL_ELEM_TYPE_BYTES;
}
idx = -1;
do {
if (++idx >= count) {
delete_tree(instance, p1);
break;
}
obj = car(p1);
switch (type) {
case SND_CTL_ELEM_TYPE_BOOLEAN:
snd_ctl_elem_value_set_boolean(&value, idx, get_integer(obj));
break;
case SND_CTL_ELEM_TYPE_INTEGER:
snd_ctl_elem_value_set_integer(&value, idx, get_integer(obj));
break;
case SND_CTL_ELEM_TYPE_INTEGER64:
snd_ctl_elem_value_set_integer64(&value, idx, get_integer(obj));
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
snd_ctl_elem_value_set_enumerated(&value, idx, get_integer(obj));
break;
case SND_CTL_ELEM_TYPE_BYTES:
snd_ctl_elem_value_set_byte(&value, idx, get_integer(obj));
break;
default:
break;
}
delete_tree(instance, obj);
p1 = cdr(obj = p1);
delete_object(instance, obj);
} while (p1 != &alsa_lisp_nil);
err = snd_hctl_elem_write(handle, &value);
return new_integer(instance, err);
}
static struct alisp_object * FA_pcm_info(struct alisp_instance * instance, struct acall_table * item, struct alisp_object * args)
{
snd_pcm_t *handle;
struct alisp_object * lexpr, * p1;
snd_pcm_info_t info = {0};
int err;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
handle = (snd_pcm_t *)get_ptr(instance, p1, item->prefix);
if (handle == NULL)
return &alsa_lisp_nil;
err = snd_pcm_info(handle, &info);
lexpr = new_lexpr(instance, err);
if (err < 0)
return lexpr;
p1 = add_cons(instance, lexpr->value.c.cdr, 0, "card", new_integer(instance, snd_pcm_info_get_card(&info)));
p1 = add_cons(instance, p1, 1, "device", new_integer(instance, snd_pcm_info_get_device(&info)));
p1 = add_cons(instance, p1, 1, "subdevice", new_integer(instance, snd_pcm_info_get_subdevice(&info)));
p1 = add_cons(instance, p1, 1, "id", new_string(instance, snd_pcm_info_get_id(&info)));
p1 = add_cons(instance, p1, 1, "name", new_string(instance, snd_pcm_info_get_name(&info)));
p1 = add_cons(instance, p1, 1, "subdevice_name", new_string(instance, snd_pcm_info_get_subdevice_name(&info)));
p1 = add_cons(instance, p1, 1, "class", new_integer(instance, snd_pcm_info_get_class(&info)));
p1 = add_cons(instance, p1, 1, "subclass", new_integer(instance, snd_pcm_info_get_subclass(&info)));
p1 = add_cons(instance, p1, 1, "subdevices_count", new_integer(instance, snd_pcm_info_get_subdevices_count(&info)));
p1 = add_cons(instance, p1, 1, "subdevices_avail", new_integer(instance, snd_pcm_info_get_subdevices_avail(&info)));
//p1 = add_cons(instance, p1, 1, "sync", new_string(instance, snd_pcm_info_get_sync(&info)));
return lexpr;
}
/*
* main code
*/
static const struct acall_table acall_table[] = {
{ "card_get_index", &FA_int_str, (void *)snd_card_get_index, NULL },
{ "card_get_longname", &FA_int_int_strp, (void *)snd_card_get_longname, NULL },
{ "card_get_name", &FA_int_int_strp, (void *)snd_card_get_name, NULL },
{ "card_next", &FA_int_intp, (void *)&snd_card_next, NULL },
{ "ctl_card_info", &FA_card_info, NULL, "ctl" },
{ "ctl_close", &FA_int_p, (void *)&snd_ctl_close, "ctl" },
{ "ctl_open", &FA_int_pp_strp_int, (void *)&snd_ctl_open, "ctl" },
{ "hctl_close", &FA_int_p, (void *)&snd_hctl_close, "hctl" },
{ "hctl_ctl", &FA_p_p, (void *)&snd_hctl_ctl, "hctl" },
{ "hctl_elem_info", &FA_hctl_elem_info, (void *)&snd_hctl_elem_info, "hctl_elem" },
{ "hctl_elem_next", &FA_p_p, (void *)&snd_hctl_elem_next, "hctl_elem" },
{ "hctl_elem_prev", &FA_p_p, (void *)&snd_hctl_elem_prev, "hctl_elem" },
{ "hctl_elem_read", &FA_hctl_elem_read, (void *)&snd_hctl_elem_read, "hctl_elem" },
{ "hctl_elem_write", &FA_hctl_elem_write, (void *)&snd_hctl_elem_write, "hctl_elem" },
{ "hctl_find_elem", &FA_hctl_find_elem, (void *)&snd_hctl_find_elem, "hctl" },
{ "hctl_first_elem", &FA_p_p, (void *)&snd_hctl_first_elem, "hctl" },
{ "hctl_free", &FA_int_p, (void *)&snd_hctl_free, "hctl" },
{ "hctl_last_elem", &FA_p_p, (void *)&snd_hctl_last_elem, "hctl" },
{ "hctl_load", &FA_int_p, (void *)&snd_hctl_load, "hctl" },
{ "hctl_open", &FA_int_pp_strp_int, (void *)&snd_hctl_open, "hctl" },
{ "hctl_open_ctl", &FA_int_pp_p, (void *)&snd_hctl_open_ctl, "hctl" },
{ "pcm_info", &FA_pcm_info, NULL, "pcm" },
{ "pcm_name", &FA_str_p, (void *)&snd_pcm_name, "pcm" },
};
static int acall_compar(const void *p1, const void *p2)
{
return strcmp(((struct acall_table *)p1)->name,
((struct acall_table *)p2)->name);
}
static struct alisp_object * F_acall(struct alisp_instance *instance, struct alisp_object * args)
{
struct alisp_object * p1, *p2;
struct acall_table key, *item;
p1 = eval(instance, car(args));
p2 = cdr(args);
delete_object(instance, args);
if (!alisp_compare_type(p1, ALISP_OBJ_IDENTIFIER) &&
!alisp_compare_type(p1, ALISP_OBJ_STRING)) {
delete_tree(instance, p2);
return &alsa_lisp_nil;
}
key.name = p1->value.s;
if ((item = bsearch(&key, acall_table,
sizeof acall_table / sizeof acall_table[0],
sizeof acall_table[0], acall_compar)) != NULL) {
delete_tree(instance, p1);
return item->func(instance, item, p2);
}
delete_tree(instance, p1);
delete_tree(instance, p2);
lisp_warn(instance, "acall function %s' is undefined", p1->value.s);
return &alsa_lisp_nil;
}
static struct alisp_object * F_ahandle(struct alisp_instance *instance, struct alisp_object * args)
{
struct alisp_object *p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
args = car(cdr(p1));
delete_tree(instance, cdr(cdr(p1)));
delete_object(instance, cdr(p1));
delete_tree(instance, car(p1));
delete_object(instance, p1);
return args;
}
static struct alisp_object * F_aerror(struct alisp_instance *instance, struct alisp_object * args)
{
struct alisp_object *p1;
p1 = eval(instance, car(args));
delete_tree(instance, cdr(args));
delete_object(instance, args);
args = car(p1);
if (args == &alsa_lisp_nil) {
delete_tree(instance, p1);
return new_integer(instance, SND_ERROR_ALISP_NIL);
} else {
delete_tree(instance, cdr(p1));
delete_object(instance, p1);
}
return args;
}
static int common_error(snd_output_t **rout, struct alisp_instance *instance, struct alisp_object * args)
{
struct alisp_object * p = args, * p1;
snd_output_t *out;
int err;
err = snd_output_buffer_open(&out);
if (err < 0) {
delete_tree(instance, args);
return err;
}
do {
p1 = eval(instance, car(p));
if (alisp_compare_type(p1, ALISP_OBJ_STRING))
snd_output_printf(out, "%s", p1->value.s);
else
princ_object(out, p1);
delete_tree(instance, p1);
p = cdr(p1 = p);
delete_object(instance, p1);
} while (p != &alsa_lisp_nil);
*rout = out;
return 0;
}
static struct alisp_object * F_snderr(struct alisp_instance *instance, struct alisp_object * args)
{
snd_output_t *out;
char *str;
if (common_error(&out, instance, args) < 0)
return &alsa_lisp_nil;
snd_output_buffer_string(out, &str);
SNDERR(str);
snd_output_close(out);
return &alsa_lisp_t;
}
static struct alisp_object * F_syserr(struct alisp_instance *instance, struct alisp_object * args)
{
snd_output_t *out;
char *str;
if (common_error(&out, instance, args) < 0)
return &alsa_lisp_nil;
snd_output_buffer_string(out, &str);
SYSERR(str);
snd_output_close(out);
return &alsa_lisp_t;
}
static const struct intrinsic snd_intrinsics[] = {
{ "Acall", F_acall },
{ "Aerror", F_aerror },
{ "Ahandle", F_ahandle },
{ "Aresult", F_ahandle },
{ "Asnderr", F_snderr },
{ "Asyserr", F_syserr }
};