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https://github.com/alsa-project/alsa-lib.git
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topology: Add binary file builder.
Build the binary output file from all the locally parsed objects and elements. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Liam Girdwood
Takashi Iwai
parent
9764a4b891
commit
1d1dff5676
1 changed files with 327 additions and 0 deletions
327
src/topology/builder.c
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327
src/topology/builder.c
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/*
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Copyright(c) 2014-2015 Intel Corporation
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All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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Authors: Mengdong Lin <mengdong.lin@intel.com>
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Yao Jin <yao.jin@intel.com>
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Liam Girdwood <liam.r.girdwood@linux.intel.com>
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*/
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#include "list.h"
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#include "tplg_local.h"
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/* verbose output detailing each object size and file position */
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static void verbose(snd_tplg_t *tplg, const char *fmt, ...)
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{
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int offset;
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va_list va;
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if (!tplg->verbose)
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return;
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offset = lseek(tplg->out_fd, 0, SEEK_CUR);
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va_start(va, fmt);
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fprintf(stdout, "0x%6.6x/%6.6d -", offset, offset);
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vfprintf(stdout, fmt, va);
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va_end(va);
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}
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/* write out block header to output file */
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static int write_block_header(snd_tplg_t *tplg, unsigned int type,
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unsigned int vendor_type, unsigned int version, unsigned int index,
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size_t payload_size, int count)
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{
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struct snd_soc_tplg_hdr hdr;
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size_t bytes;
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int offset = lseek(tplg->out_fd, 0, SEEK_CUR);
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memset(&hdr, 0, sizeof(hdr));
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hdr.magic = SND_SOC_TPLG_MAGIC;
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hdr.abi = SND_SOC_TPLG_ABI_VERSION;
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hdr.type = type;
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hdr.vendor_type = vendor_type;
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hdr.version = version;
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hdr.payload_size = payload_size;
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hdr.index = index;
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hdr.size = sizeof(hdr);
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hdr.count = count;
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/* make sure file offset is aligned with the calculated HDR offset */
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if ((unsigned int)offset != tplg->next_hdr_pos) {
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SNDERR("error: New header is at offset 0x%x but file"
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" offset 0x%x is %s by %d bytes\n",
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tplg->next_hdr_pos, offset,
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(unsigned int)offset > tplg->next_hdr_pos ? "ahead" : "behind",
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abs(offset - tplg->next_hdr_pos));
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exit(-EINVAL);
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}
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verbose(tplg, " header type %d size 0x%lx/%ld vendor %d "
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"version %d\n", type, (long unsigned int)payload_size,
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(long int)payload_size, vendor_type, version);
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tplg->next_hdr_pos += hdr.payload_size + sizeof(hdr);
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bytes = write(tplg->out_fd, &hdr, sizeof(hdr));
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if (bytes != sizeof(hdr)) {
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SNDERR("error: can't write section header %lu\n",
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(long unsigned int)bytes);
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return bytes;
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}
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return bytes;
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}
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static int write_data_block(snd_tplg_t *tplg, int size, int tplg_type,
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const char *obj_name, void *data)
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{
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int ret;
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/* write the header for this block */
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ret = write_block_header(tplg, tplg_type, 0,
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SND_SOC_TPLG_ABI_VERSION, 0, size, 1);
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if (ret < 0) {
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SNDERR("error: failed to write %s block %d\n", obj_name, ret);
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return ret;
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}
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verbose(tplg, " %s : write %d bytes\n", obj_name, size);
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ret = write(tplg->out_fd, data, size);
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if (ret < 0) {
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SNDERR("error: failed to write %s %d\n", obj_name, ret);
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return ret;
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}
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return 0;
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}
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static int write_elem_block(snd_tplg_t *tplg,
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struct list_head *base, int size, int tplg_type, const char *obj_name)
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{
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struct list_head *pos;
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struct tplg_elem *elem;
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int ret, wsize = 0, count = 0, vendor_type;
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/* count number of elements */
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list_for_each(pos, base)
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count++;
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/* write the header for this block */
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list_for_each(pos, base) {
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elem = list_entry(pos, struct tplg_elem, list);
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vendor_type = elem->vendor_type;
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break;
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}
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ret = write_block_header(tplg, tplg_type, vendor_type,
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SND_SOC_TPLG_ABI_VERSION, 0, size, count);
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if (ret < 0) {
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SNDERR("error: failed to write %s block %d\n",
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obj_name, ret);
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return ret;
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}
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/* write each elem to block */
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list_for_each(pos, base) {
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elem = list_entry(pos, struct tplg_elem, list);
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/* compound elems have already been copied to other elems */
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if (elem->compound_elem)
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continue;
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if (elem->type != OBJECT_TYPE_DAPM_GRAPH)
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verbose(tplg, " %s '%s': write %d bytes\n",
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obj_name, elem->id, elem->size);
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else
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verbose(tplg, " %s '%s': write %d bytes\n",
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obj_name, elem->route->source, elem->size);
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count = write(tplg->out_fd, elem->obj, elem->size);
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if (count < 0) {
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SNDERR("error: failed to write %s %d\n",
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obj_name, ret);
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return ret;
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}
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wsize += count;
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}
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/* make sure we have written the correct size */
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if (wsize != size) {
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SNDERR("error: size mismatch. Expected %d wrote %d\n",
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size, wsize);
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return -EIO;
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}
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return 0;
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}
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static int calc_block_size(struct list_head *base)
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{
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struct list_head *pos;
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struct tplg_elem *elem;
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int size = 0;
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list_for_each(pos, base) {
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elem = list_entry(pos, struct tplg_elem, list);
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/* compound elems have already been copied to other elems */
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if (elem->compound_elem)
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continue;
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size += elem->size;
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}
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return size;
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}
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static int write_block(snd_tplg_t *tplg, struct list_head *base,
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int type)
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{
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int size;
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/* calculate the block size in bytes for all elems in this list */
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size = calc_block_size(base);
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if (size <= 0)
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return size;
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verbose(tplg, " block size for type %d is %d\n", type, size);
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/* write each elem for this block */
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switch (type) {
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case OBJECT_TYPE_MIXER:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_MIXER, "mixer");
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case OBJECT_TYPE_BYTES:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_BYTES, "bytes");
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case OBJECT_TYPE_ENUM:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_ENUM, "enum");
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case OBJECT_TYPE_DAPM_GRAPH:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_DAPM_GRAPH, "route");
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case OBJECT_TYPE_DAPM_WIDGET:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_DAPM_WIDGET, "widget");
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case OBJECT_TYPE_PCM:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_PCM, "pcm");
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case OBJECT_TYPE_BE:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_DAI_LINK, "be");
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case OBJECT_TYPE_CC:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_DAI_LINK, "cc");
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case OBJECT_TYPE_MANIFEST:
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return write_data_block(tplg, size, SND_SOC_TPLG_TYPE_MANIFEST,
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"manifest", &tplg->manifest);
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case OBJECT_TYPE_DATA:
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return write_elem_block(tplg, base, size,
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SND_SOC_TPLG_TYPE_PDATA, "data");
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default:
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return -EINVAL;
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}
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return 0;
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}
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int tplg_write_data(snd_tplg_t *tplg)
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{
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int ret;
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/* write manifest */
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ret = write_data_block(tplg, sizeof(tplg->manifest),
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OBJECT_TYPE_MANIFEST, "manifest", &tplg->manifest);
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if (ret < 0) {
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SNDERR("failed to write manifest %d\n", ret);
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return ret;
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}
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/* write mixer elems. */
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ret = write_block(tplg, &tplg->mixer_list,
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OBJECT_TYPE_MIXER);
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if (ret < 0) {
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SNDERR("failed to write control elems %d\n", ret);
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return ret;
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}
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/* write enum control elems. */
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ret = write_block(tplg, &tplg->enum_list,
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OBJECT_TYPE_ENUM);
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if (ret < 0) {
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SNDERR("failed to write control elems %d\n", ret);
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return ret;
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}
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/* write bytes extended control elems. */
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ret = write_block(tplg, &tplg->bytes_ext_list,
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OBJECT_TYPE_BYTES);
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if (ret < 0) {
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SNDERR("failed to write control elems %d\n", ret);
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return ret;
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}
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/* write widget elems */
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ret = write_block(tplg, &tplg->widget_list,
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OBJECT_TYPE_DAPM_WIDGET);
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if (ret < 0) {
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SNDERR("failed to write widget elems %d\n", ret);
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return ret;
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}
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/* write pcm elems */
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ret = write_block(tplg, &tplg->pcm_list,
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OBJECT_TYPE_PCM);
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if (ret < 0) {
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SNDERR("failed to write pcm elems %d\n", ret);
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return ret;
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}
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/* write be elems */
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ret = write_block(tplg, &tplg->be_list,
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OBJECT_TYPE_BE);
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if (ret < 0) {
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SNDERR("failed to write be elems %d\n", ret);
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return ret;
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}
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/* write cc elems */
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ret = write_block(tplg, &tplg->cc_list,
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OBJECT_TYPE_CC);
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if (ret < 0) {
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SNDERR("failed to write cc elems %d\n", ret);
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return ret;
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}
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/* write route elems */
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ret = write_block(tplg, &tplg->route_list,
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OBJECT_TYPE_DAPM_GRAPH);
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if (ret < 0) {
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SNDERR("failed to write graph elems %d\n", ret);
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return ret;
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}
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/* write private data */
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ret = write_block(tplg, &tplg->pdata_list,
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OBJECT_TYPE_DATA);
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if (ret < 0) {
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SNDERR("failed to write private data %d\n", ret);
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return ret;
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}
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return 0;
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}
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