[alsa-devel] [PATCH v3 10/13] topology: Add binary file builder.
Liam Girdwood
liam.r.girdwood at linux.intel.com
Wed Jul 29 18:45:22 CEST 2015
Build the binary output file from all the locally parsed objects and elements.
Signed-off-by: Liam Girdwood <liam.r.girdwood at linux.intel.com>
---
src/topology/builder.c | 327 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 327 insertions(+)
create mode 100644 src/topology/builder.c
diff --git a/src/topology/builder.c b/src/topology/builder.c
new file mode 100644
index 0000000..0066b22
--- /dev/null
+++ b/src/topology/builder.c
@@ -0,0 +1,327 @@
+/*
+ Copyright(c) 2014-2015 Intel Corporation
+ All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License 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.
+
+ Authors: Mengdong Lin <mengdong.lin at intel.com>
+ Yao Jin <yao.jin at intel.com>
+ Liam Girdwood <liam.r.girdwood at linux.intel.com>
+*/
+
+#include "list.h"
+#include "tplg_local.h"
+
+/* verbose output detailing each object size and file position */
+static void verbose(snd_tplg_t *tplg, const char *fmt, ...)
+{
+ int offset;
+ va_list va;
+
+ if (!tplg->verbose)
+ return;
+
+ offset = lseek(tplg->out_fd, 0, SEEK_CUR);
+
+ va_start(va, fmt);
+ fprintf(stdout, "0x%6.6x/%6.6d -", offset, offset);
+ vfprintf(stdout, fmt, va);
+ va_end(va);
+}
+
+/* write out block header to output file */
+static int write_block_header(snd_tplg_t *tplg, unsigned int type,
+ unsigned int vendor_type, unsigned int version, unsigned int index,
+ size_t payload_size, int count)
+{
+ struct snd_soc_tplg_hdr hdr;
+ size_t bytes;
+ int offset = lseek(tplg->out_fd, 0, SEEK_CUR);
+
+ memset(&hdr, 0, sizeof(hdr));
+ hdr.magic = SND_SOC_TPLG_MAGIC;
+ hdr.abi = SND_SOC_TPLG_ABI_VERSION;
+ hdr.type = type;
+ hdr.vendor_type = vendor_type;
+ hdr.version = version;
+ hdr.payload_size = payload_size;
+ hdr.index = index;
+ hdr.size = sizeof(hdr);
+ hdr.count = count;
+
+ /* make sure file offset is aligned with the calculated HDR offset */
+ if ((unsigned int)offset != tplg->next_hdr_pos) {
+ SNDERR("error: New header is at offset 0x%x but file"
+ " offset 0x%x is %s by %d bytes\n",
+ tplg->next_hdr_pos, offset,
+ (unsigned int)offset > tplg->next_hdr_pos ? "ahead" : "behind",
+ abs(offset - tplg->next_hdr_pos));
+ exit(-EINVAL);
+ }
+
+ verbose(tplg, " header type %d size 0x%lx/%ld vendor %d "
+ "version %d\n", type, (long unsigned int)payload_size,
+ (long int)payload_size, vendor_type, version);
+
+ tplg->next_hdr_pos += hdr.payload_size + sizeof(hdr);
+
+ bytes = write(tplg->out_fd, &hdr, sizeof(hdr));
+ if (bytes != sizeof(hdr)) {
+ SNDERR("error: can't write section header %lu\n",
+ (long unsigned int)bytes);
+ return bytes;
+ }
+
+ return bytes;
+}
+
+static int write_data_block(snd_tplg_t *tplg, int size, int tplg_type,
+ const char *obj_name, void *data)
+{
+ int ret;
+
+ /* write the header for this block */
+ ret = write_block_header(tplg, tplg_type, 0,
+ SND_SOC_TPLG_ABI_VERSION, 0, size, 1);
+ if (ret < 0) {
+ SNDERR("error: failed to write %s block %d\n", obj_name, ret);
+ return ret;
+ }
+
+ verbose(tplg, " %s : write %d bytes\n", obj_name, size);
+
+ ret = write(tplg->out_fd, data, size);
+ if (ret < 0) {
+ SNDERR("error: failed to write %s %d\n", obj_name, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int write_elem_block(snd_tplg_t *tplg,
+ struct list_head *base, int size, int tplg_type, const char *obj_name)
+{
+ struct list_head *pos;
+ struct tplg_elem *elem;
+ int ret, wsize = 0, count = 0, vendor_type;
+
+ /* count number of elements */
+ list_for_each(pos, base)
+ count++;
+
+ /* write the header for this block */
+ list_for_each(pos, base) {
+ elem = list_entry(pos, struct tplg_elem, list);
+ vendor_type = elem->vendor_type;
+ break;
+ }
+
+ ret = write_block_header(tplg, tplg_type, vendor_type,
+ SND_SOC_TPLG_ABI_VERSION, 0, size, count);
+ if (ret < 0) {
+ SNDERR("error: failed to write %s block %d\n",
+ obj_name, ret);
+ return ret;
+ }
+
+ /* write each elem to block */
+ list_for_each(pos, base) {
+
+ elem = list_entry(pos, struct tplg_elem, list);
+
+ /* compound elems have already been copied to other elems */
+ if (elem->compound_elem)
+ continue;
+
+ if (elem->type != OBJECT_TYPE_DAPM_GRAPH)
+ verbose(tplg, " %s '%s': write %d bytes\n",
+ obj_name, elem->id, elem->size);
+ else
+ verbose(tplg, " %s '%s': write %d bytes\n",
+ obj_name, elem->route->source, elem->size);
+
+ count = write(tplg->out_fd, elem->obj, elem->size);
+ if (count < 0) {
+ SNDERR("error: failed to write %s %d\n",
+ obj_name, ret);
+ return ret;
+ }
+
+ wsize += count;
+ }
+
+ /* make sure we have written the correct size */
+ if (wsize != size) {
+ SNDERR("error: size mismatch. Expected %d wrote %d\n",
+ size, wsize);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int calc_block_size(struct list_head *base)
+{
+ struct list_head *pos;
+ struct tplg_elem *elem;
+ int size = 0;
+
+ list_for_each(pos, base) {
+
+ elem = list_entry(pos, struct tplg_elem, list);
+
+ /* compound elems have already been copied to other elems */
+ if (elem->compound_elem)
+ continue;
+
+ size += elem->size;
+ }
+
+ return size;
+}
+
+static int write_block(snd_tplg_t *tplg, struct list_head *base,
+ int type)
+{
+ int size;
+
+ /* calculate the block size in bytes for all elems in this list */
+ size = calc_block_size(base);
+ if (size <= 0)
+ return size;
+
+ verbose(tplg, " block size for type %d is %d\n", type, size);
+
+ /* write each elem for this block */
+ switch (type) {
+ case OBJECT_TYPE_MIXER:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_MIXER, "mixer");
+ case OBJECT_TYPE_BYTES:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_BYTES, "bytes");
+ case OBJECT_TYPE_ENUM:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_ENUM, "enum");
+ case OBJECT_TYPE_DAPM_GRAPH:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_DAPM_GRAPH, "route");
+ case OBJECT_TYPE_DAPM_WIDGET:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_DAPM_WIDGET, "widget");
+ case OBJECT_TYPE_PCM:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_PCM, "pcm");
+ case OBJECT_TYPE_BE:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_DAI_LINK, "be");
+ case OBJECT_TYPE_CC:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_DAI_LINK, "cc");
+ case OBJECT_TYPE_MANIFEST:
+ return write_data_block(tplg, size, SND_SOC_TPLG_TYPE_MANIFEST,
+ "manifest", &tplg->manifest);
+ case OBJECT_TYPE_DATA:
+ return write_elem_block(tplg, base, size,
+ SND_SOC_TPLG_TYPE_PDATA, "data");
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int tplg_write_data(snd_tplg_t *tplg)
+{
+ int ret;
+
+ /* write manifest */
+ ret = write_data_block(tplg, sizeof(tplg->manifest),
+ OBJECT_TYPE_MANIFEST, "manifest", &tplg->manifest);
+ if (ret < 0) {
+ SNDERR("failed to write manifest %d\n", ret);
+ return ret;
+ }
+
+ /* write mixer elems. */
+ ret = write_block(tplg, &tplg->mixer_list,
+ OBJECT_TYPE_MIXER);
+ if (ret < 0) {
+ SNDERR("failed to write control elems %d\n", ret);
+ return ret;
+ }
+
+ /* write enum control elems. */
+ ret = write_block(tplg, &tplg->enum_list,
+ OBJECT_TYPE_ENUM);
+ if (ret < 0) {
+ SNDERR("failed to write control elems %d\n", ret);
+ return ret;
+ }
+
+ /* write bytes extended control elems. */
+ ret = write_block(tplg, &tplg->bytes_ext_list,
+ OBJECT_TYPE_BYTES);
+ if (ret < 0) {
+ SNDERR("failed to write control elems %d\n", ret);
+ return ret;
+ }
+
+ /* write widget elems */
+ ret = write_block(tplg, &tplg->widget_list,
+ OBJECT_TYPE_DAPM_WIDGET);
+ if (ret < 0) {
+ SNDERR("failed to write widget elems %d\n", ret);
+ return ret;
+ }
+
+ /* write pcm elems */
+ ret = write_block(tplg, &tplg->pcm_list,
+ OBJECT_TYPE_PCM);
+ if (ret < 0) {
+ SNDERR("failed to write pcm elems %d\n", ret);
+ return ret;
+ }
+
+ /* write be elems */
+ ret = write_block(tplg, &tplg->be_list,
+ OBJECT_TYPE_BE);
+ if (ret < 0) {
+ SNDERR("failed to write be elems %d\n", ret);
+ return ret;
+ }
+
+ /* write cc elems */
+ ret = write_block(tplg, &tplg->cc_list,
+ OBJECT_TYPE_CC);
+ if (ret < 0) {
+ SNDERR("failed to write cc elems %d\n", ret);
+ return ret;
+ }
+
+ /* write route elems */
+ ret = write_block(tplg, &tplg->route_list,
+ OBJECT_TYPE_DAPM_GRAPH);
+ if (ret < 0) {
+ SNDERR("failed to write graph elems %d\n", ret);
+ return ret;
+ }
+
+ /* write private data */
+ ret = write_block(tplg, &tplg->pdata_list,
+ OBJECT_TYPE_DATA);
+ if (ret < 0) {
+ SNDERR("failed to write private data %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
--
2.1.4
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