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/*
* ALSA SoC OMAP ABE driver
*
* Author: Laurent Le Faucheur <l-le-faucheur@ti.com>
* Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <linux/module.h>
#include "abe_main.h"
/**
* abe_null_subroutine
*
*/
void abe_null_subroutine_0(void)
{
}
void abe_null_subroutine_2(u32 a, u32 b)
{
}
void abe_null_subroutine_4(u32 a, u32 b, u32 c, u32 d)
{
}
/**
* abe_init_subroutine_table - initializes the default table of pointers
* to subroutines
*
* initializes the default table of pointers to subroutines
*
*/
void abe_init_subroutine_table(void)
{
u32 id;
/* reset the table's pointers */
abe_subroutine_write_pointer = 0;
/* the first index is the NULL task */
abe_add_subroutine(&id, (abe_subroutine2) abe_null_subroutine_2,
SUB_0_PARAM, (u32 *) 0);
/* write mixer has 4 parameters */
abe_add_subroutine(&(abe_subroutine_id[SUB_WRITE_MIXER]),
(abe_subroutine2) abe_write_mixer, SUB_4_PARAM,
(u32 *) 0);
/* ping-pong player IRQ */
abe_add_subroutine(&abe_irq_pingpong_player_id,
(abe_subroutine2) abe_null_subroutine_0, SUB_0_PARAM,
(u32 *) 0);
abe_add_subroutine(&abe_irq_aps_adaptation_id,
(abe_subroutine2) abe_default_irq_aps_adaptation,
SUB_0_PARAM, (u32 *) 0);
}
/**
* abe_add_subroutine
* @id: ABE port id
* @f: pointer to the subroutines
* @nparam: number of parameters
* @params: pointer to the psrameters
*
* add one function pointer more and returns the index to it
*/
void abe_add_subroutine(u32 *id, abe_subroutine2 f, u32 nparam, u32 *params)
{
u32 i, i_found;
if ((abe_subroutine_write_pointer >= MAXNBSUBROUTINE) || ((u32) f == 0)) {
abe_dbg_param |= ERR_SEQ;
abe_dbg_error_log(ABE_PARAMETER_OVERFLOW);
} else {
/* search if this subroutine address was not already
* declared, then return the previous index
*/
for (i_found = abe_subroutine_write_pointer, i = 0;
i < abe_subroutine_write_pointer; i++) {
if (f == abe_all_subsubroutine[i])
i_found = i;
}
if (i_found == abe_subroutine_write_pointer) {
*id = abe_subroutine_write_pointer;
abe_all_subsubroutine
[abe_subroutine_write_pointer] = (f);
abe_all_subroutine_params
[abe_subroutine_write_pointer] = params;
abe_all_subsubroutine_nparam
[abe_subroutine_write_pointer] = nparam;
abe_subroutine_write_pointer++;
} else {
abe_all_subroutine_params[i_found] = params;
*id = i_found;
}
}
}
EXPORT_SYMBOL_GPL(abe_add_subroutine);
/**
* abe_add_sequence
* @id: returned sequence index after pluging a new sequence (index in the tables)
* @s: sequence to be inserted
*
* Load a time-sequenced operations.
*/
void abe_add_sequence(u32 *id, abe_sequence_t *s)
{
abe_seq_t *seq_src, *seq_dst;
u32 i, no_end_of_sequence_found;
seq_src = &(s->seq1);
seq_dst = &((abe_all_sequence[abe_sequence_write_pointer]).seq1);
if ((abe_sequence_write_pointer >= MAXNBSEQUENCE) || ((u32) s == 0)) {
abe_dbg_param |= ERR_SEQ;
abe_dbg_error_log(ABE_PARAMETER_OVERFLOW);
} else {
*id = abe_subroutine_write_pointer;
/* copy the mask */
(abe_all_sequence[abe_sequence_write_pointer]).mask = s->mask;
for (no_end_of_sequence_found = 1, i = 0; i < MAXSEQUENCESTEPS;
i++, seq_src++, seq_dst++) {
/* sequence copied line by line */
(*seq_dst) = (*seq_src);
/* stop when the line start with time=(-1) */
if ((*(s32 *) seq_src) == (-1)) {
/* stop when the line start with time=(-1) */
no_end_of_sequence_found = 0;
break;
}
}
abe_subroutine_write_pointer++;
if (no_end_of_sequence_found)
abe_dbg_error_log(ABE_SEQTOOLONG);
}
}
/**
* abe_reset_one_sequence
* @id: sequence ID
*
* load default configuration for that sequence
* kill running activities
*/
void abe_reset_one_sequence(u32 id)
{
}
/**
* abe_reset_all_sequence
*
* load default configuration for all sequences
* kill any running activities
*/
void abe_reset_all_sequence(void)
{
u32 i;
abe_init_subroutine_table();
/* arrange to have the first sequence index=0 to the NULL operation
sequence */
abe_add_sequence(&i, (abe_sequence_t *) &seq_null);
/* reset the the collision protection mask */
abe_global_sequence_mask = 0;
/* reset the pending sequences list */
for (abe_nb_pending_sequences = i = 0; i < MAXNBSEQUENCE; i++)
abe_pending_sequences[i] = 0;
}
/**
* abe_call_subroutine
* @idx: index to the table of all registered Call-backs and subroutines
*
* run and log a subroutine
*/
void abe_call_subroutine(u32 idx, u32 p1, u32 p2, u32 p3, u32 p4)
{
abe_subroutine0 f0;
abe_subroutine1 f1;
abe_subroutine2 f2;
abe_subroutine3 f3;
abe_subroutine4 f4;
u32 *params;
if (idx >= MAXNBSUBROUTINE)
return;
switch (idx) {
/* call the subroutines defined at compilation time
(const .. sequences) */
#if 0
case SUB_WRITE_MIXER_DL1:
abe_write_mixer_dl1(p1, p2, p3)
abe_fprintf("write_mixer");
break;
#endif
/* call the subroutines defined at execution time
(dynamic sequences) */
default:
switch (abe_all_subsubroutine_nparam[idx]) {
case SUB_0_PARAM:
f0 = (abe_subroutine0) abe_all_subsubroutine[idx];
(*f0) ();
break;
case SUB_1_PARAM:
f1 = (abe_subroutine1) abe_all_subsubroutine[idx];
params = abe_all_subroutine_params
[abe_irq_pingpong_player_id];
if (params != (u32 *) 0)
p1 = params[0];
(*f1) (p1);
break;
case SUB_2_PARAM:
f2 = abe_all_subsubroutine[idx];
params = abe_all_subroutine_params
[abe_irq_pingpong_player_id];
if (params != (u32 *) 0) {
p1 = params[0];
p2 = params[1];
}
(*f2) (p1, p2);
break;
case SUB_3_PARAM:
f3 = (abe_subroutine3) abe_all_subsubroutine[idx];
params = abe_all_subroutine_params
[abe_irq_pingpong_player_id];
if (params != (u32 *) 0) {
p1 = params[0];
p2 = params[1];
p3 = params[2];
}
(*f3) (p1, p2, p3);
break;
case SUB_4_PARAM:
f4 = (abe_subroutine4) abe_all_subsubroutine[idx];
params = abe_all_subroutine_params
[abe_irq_pingpong_player_id];
if (params != (u32 *) 0) {
p1 = params[0];
p2 = params[1];
p3 = params[2];
p4 = params[3];
}
(*f4) (p1, p2, p3, p4);
break;
default:
break;
}
}
}
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