298 lines
6.7 KiB
C
298 lines
6.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Björn Stenberg
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include <stdbool.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <timefuncs.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include "string-extra.h"
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#include "load_code.h"
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#include "debug.h"
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#include "button.h"
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#include "dir.h"
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#include "file.h"
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#include "kernel.h"
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#include "screens.h"
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#include "misc.h"
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#include "codecs.h"
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#include "lang.h"
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#include "keyboard.h"
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#include "buffering.h"
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#include "backlight.h"
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#include "storage.h"
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#include "talk.h"
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#include "mp3data.h"
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#include "powermgmt.h"
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#include "system.h"
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#include "sound.h"
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#include "splash.h"
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#include "general.h"
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#include "rbpaths.h"
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#define LOGF_ENABLE
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#include "logf.h"
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#if (CONFIG_PLATFORM & (PLATFORM_SDL|PLATFORM_MAEMO|PLATFORM_PANDORA))
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#define PREFIX(_x_) sim_ ## _x_
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#else
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#define PREFIX(_x_) _x_
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#endif
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#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
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/* For PLATFORM_HOSTED this buffer must be define here. */
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static unsigned char codecbuf[CODEC_SIZE];
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#else
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/* For PLATFORM_NATIVE this buffer is defined in *.lds files. */
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extern unsigned char codecbuf[];
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#endif
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static size_t codec_size;
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struct codec_api ci = {
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0, /* filesize */
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0, /* curpos */
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NULL, /* id3 */
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ERR_HANDLE_NOT_FOUND, /* audio_hid */
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NULL, /* struct dsp_config *dsp */
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NULL, /* codec_get_buffer */
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NULL, /* pcmbuf_insert */
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NULL, /* set_elapsed */
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NULL, /* read_filebuf */
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NULL, /* request_buffer */
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NULL, /* advance_buffer */
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NULL, /* seek_buffer */
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NULL, /* seek_complete */
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NULL, /* set_offset */
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NULL, /* configure */
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NULL, /* get_command */
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NULL, /* loop_track */
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/* kernel/ system */
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#if defined(CPU_ARM) && CONFIG_PLATFORM & PLATFORM_NATIVE
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__div0,
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#endif
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sleep,
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yield,
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#if NUM_CORES > 1
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create_thread,
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thread_thaw,
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thread_wait,
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semaphore_init,
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semaphore_wait,
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semaphore_release,
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#endif
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commit_dcache,
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commit_discard_dcache,
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commit_discard_idcache,
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/* strings and memory */
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strcpy,
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strlen,
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strcmp,
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strcat,
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memset,
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memcpy,
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memmove,
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memcmp,
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memchr,
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#if defined(DEBUG) || defined(SIMULATOR)
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debugf,
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#endif
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#ifdef ROCKBOX_HAS_LOGF
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logf,
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#endif
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(void *)qsort,
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#ifdef RB_PROFILE
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profile_thread,
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profstop,
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__cyg_profile_func_enter,
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__cyg_profile_func_exit,
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#endif
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#ifdef HAVE_RECORDING
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NULL, /* enc_pcmbuf_read */
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NULL, /* enc_pcmbuf_advance */
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NULL, /* enc_encbuf_get_buffer */
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NULL, /* enc_encbuf_finish_buffer */
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NULL, /* enc_stream_read */
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NULL, /* enc_stream_lseek */
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NULL, /* enc_stream_write */
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round_value_to_list32,
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#endif /* HAVE_RECORDING */
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/* new stuff at the end, sort into place next time
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the API gets incompatible */
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};
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void codec_get_full_path(char *path, const char *codec_root_fn)
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{
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snprintf(path, MAX_PATH-1, CODECS_DIR "/" CODEC_PREFIX "%s."
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CODEC_EXTENSION, codec_root_fn);
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}
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/* Returns pointer to and size of free codec RAM. Aligns to CACHEALIGN_SIZE. */
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void *codec_get_buffer_callback(size_t *size)
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{
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void *buf = &codecbuf[codec_size];
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ssize_t s = CODEC_SIZE - codec_size;
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if (s <= 0)
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return NULL;
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*size = s;
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ALIGN_BUFFER(buf, *size, CACHEALIGN_SIZE);
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return buf;
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}
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/** codec loading and call interface **/
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static void *curr_handle = NULL;
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static struct codec_header *c_hdr = NULL;
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static int codec_load_ram(struct codec_api *api)
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{
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struct lc_header *hdr;
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c_hdr = lc_get_header(curr_handle);
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hdr = c_hdr ? &c_hdr->lc_hdr : NULL;
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if (hdr == NULL
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|| (hdr->magic != CODEC_MAGIC
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#ifdef HAVE_RECORDING
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&& hdr->magic != CODEC_ENC_MAGIC
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#endif
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)
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|| hdr->target_id != TARGET_ID
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#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
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|| hdr->load_addr != codecbuf
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|| hdr->end_addr > codecbuf + CODEC_SIZE
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#endif
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)
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{
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logf("codec header error");
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lc_close(curr_handle);
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curr_handle = NULL;
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return CODEC_ERROR;
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}
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if (hdr->api_version > CODEC_API_VERSION
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|| hdr->api_version < CODEC_MIN_API_VERSION) {
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logf("codec api version error");
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lc_close(curr_handle);
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curr_handle = NULL;
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return CODEC_ERROR;
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}
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#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
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codec_size = hdr->end_addr - codecbuf;
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#else
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codec_size = 0;
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#endif
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*(c_hdr->api) = api;
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logf("Codec: calling entrypoint");
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return c_hdr->entry_point(CODEC_LOAD);
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}
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int codec_load_buf(int hid, struct codec_api *api)
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{
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int rc = bufread(hid, CODEC_SIZE, codecbuf);
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if (rc < 0) {
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logf("Codec: cannot read buf handle");
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return CODEC_ERROR;
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}
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curr_handle = lc_open_from_mem(codecbuf, rc);
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if (curr_handle == NULL) {
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logf("Codec: load error");
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return CODEC_ERROR;
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}
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return codec_load_ram(api);
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}
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int codec_load_file(const char *plugin, struct codec_api *api)
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{
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char path[MAX_PATH];
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codec_get_full_path(path, plugin);
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curr_handle = lc_open(path, codecbuf, CODEC_SIZE);
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if (curr_handle == NULL) {
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logf("Codec: cannot read file");
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return CODEC_ERROR;
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}
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return codec_load_ram(api);
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}
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int codec_run_proc(void)
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{
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if (curr_handle == NULL) {
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logf("Codec: no codec to run");
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return CODEC_ERROR;
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}
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logf("Codec: entering run state");
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return c_hdr->run_proc();
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}
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int codec_close(void)
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{
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int status = CODEC_OK;
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if (curr_handle != NULL) {
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logf("Codec: cleaning up");
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status = c_hdr->entry_point(CODEC_UNLOAD);
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lc_close(curr_handle);
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curr_handle = NULL;
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}
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return status;
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}
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#ifdef HAVE_RECORDING
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enc_callback_t codec_get_enc_callback(void)
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{
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if (curr_handle == NULL ||
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c_hdr->lc_hdr.magic != CODEC_ENC_MAGIC) {
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logf("Codec: not an encoder");
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return NULL;
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}
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return c_hdr->rec_extension[0];
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}
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#endif /* HAVE_RECORDING */
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