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qmic/accessor.c
Bjorn Andersson 8e5daab4a6 kernel: Introduce kernel-style generator 
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-01-31 13:00:02 -08:00

376 lines
11 KiB
C
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#include <stdio.h>
#include <stdlib.h>
#include "qmic.h"
static void qmi_struct_header(FILE *fp, const char *package)
{
struct qmi_struct_member *qsm;
struct qmi_struct *qs;
list_for_each_entry(qs, &qmi_structs, node) {
fprintf(fp, "struct %s_%s {\n",
package, qs->name);
list_for_each_entry(qsm, &qs->members, node) {
fprintf(fp, "\t%s %s;\n",
sz_simple_types[qsm->type], qsm->name);
}
fprintf(fp, "};\n"
"\n");
}
}
static void qmi_struct_emit_prototype(FILE *fp,
const char *package,
const char *message,
const char *member,
unsigned array_size,
struct qmi_struct *qs)
{
if (array_size) {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, struct %1$s_%4$s *val, size_t count);\n",
package, message, member, qs->name);
fprintf(fp, "struct %1$s_%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, size_t *count);\n\n",
package, message, member, qs->name);
} else {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, struct %1$s_%4$s *val);\n",
package, message, member, qs->name);
fprintf(fp, "struct %1$s_%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s);\n\n",
package, message, member, qs->name);
}
}
static void qmi_struct_emit_accessors(FILE *fp,
const char *package,
const char *message,
const char *member,
int member_id,
unsigned array_size,
struct qmi_struct *qs)
{
if (array_size) {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, struct %1$s_%4$s *val, size_t count)\n"
"{\n"
" return qmi_tlv_set_array((struct qmi_tlv*)%2$s, %5$d, %6$d, val, count, sizeof(struct %1$s_%4$s));\n"
"}\n\n",
package, message, member, qs->name, member_id, array_size);
fprintf(fp, "struct %1$s_%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, size_t *count)\n"
"{\n"
" size_t size;\n"
" size_t len;\n"
" void *ptr;\n"
"\n"
" ptr = qmi_tlv_get_array((struct qmi_tlv*)%2$s, %5$d, %6$d, &len, &size);\n"
" if (!ptr)\n"
" return NULL;\n"
"\n"
" if (size != sizeof(struct %1$s_%4$s))\n"
" return NULL;\n"
"\n"
" *count = len;\n"
" return ptr;\n"
"}\n\n",
package, message, member, qs->name, member_id, array_size);
} else {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, struct %1$s_%4$s *val)\n"
"{\n"
" return qmi_tlv_set((struct qmi_tlv*)%2$s, %5$d, val, sizeof(struct %1$s_%4$s));\n"
"}\n\n",
package, message, member, qs->name, member_id);
fprintf(fp, "struct %1$s_%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s)\n"
"{\n"
" size_t len;\n"
" void *ptr;\n"
"\n"
" ptr = qmi_tlv_get((struct qmi_tlv*)%2$s, %5$d, &len);\n"
" if (!ptr)\n"
" return NULL;\n"
"\n"
" if (len != sizeof(struct %1$s_%4$s))\n"
" return NULL;\n"
"\n"
" return ptr;\n"
"}\n\n",
package, message, member, qs->name, member_id);
}
}
static void qmi_message_emit_message_type(FILE *fp,
const char *package,
const char *message)
{
fprintf(fp, "struct %s_%s;\n", package, message);
}
static void qmi_message_emit_message_prototype(FILE *fp,
const char *package,
const char *message)
{
fprintf(fp, "/*\n"
" * %1$s_%2$s message\n"
" */\n",
package, message);
fprintf(fp, "struct %1$s_%2$s *%1$s_%2$s_alloc(unsigned txn);\n",
package, message);
fprintf(fp, "struct %1$s_%2$s *%1$s_%2$s_parse(void *buf, size_t len, unsigned *txn);\n",
package, message);
fprintf(fp, "void *%1$s_%2$s_encode(struct %1$s_%2$s *%2$s, size_t *len);\n",
package, message);
fprintf(fp, "void %1$s_%2$s_free(struct %1$s_%2$s *%2$s);\n\n",
package, message);
}
static void qmi_message_emit_message(FILE *fp,
const char *package,
struct qmi_message *qm)
{
fprintf(fp, "struct %1$s_%2$s *%1$s_%2$s_alloc(unsigned txn)\n"
"{\n"
" return (struct %1$s_%2$s*)qmi_tlv_init(txn, %3$d, %4$d);\n"
"}\n\n",
package, qm->name, qm->msg_id, qm->type);
fprintf(fp, "struct %1$s_%2$s *%1$s_%2$s_parse(void *buf, size_t len, unsigned *txn)\n"
"{\n"
" return (struct %1$s_%2$s*)qmi_tlv_decode(buf, len, txn, %3$d);\n"
"}\n\n",
package, qm->name, qm->type);
fprintf(fp, "void *%1$s_%2$s_encode(struct %1$s_%2$s *%2$s, size_t *len)\n"
"{\n"
" return qmi_tlv_encode((struct qmi_tlv*)%2$s, len);\n"
"}\n\n",
package, qm->name);
fprintf(fp, "void %1$s_%2$s_free(struct %1$s_%2$s *%2$s)\n"
"{\n"
" qmi_tlv_free((struct qmi_tlv*)%2$s);\n"
"}\n\n",
package, qm->name);
}
static void qmi_message_emit_simple_prototype(FILE *fp,
const char *package,
const char *message,
struct qmi_message_member *qmm)
{
if (qmm->array_size) {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, %4$s *val, size_t count);\n",
package, message, qmm->name, sz_simple_types[qmm->type]);
fprintf(fp, "%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, size_t *count);\n\n",
package, message, qmm->name, sz_simple_types[qmm->type]);
} else {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, %4$s val);\n",
package, message, qmm->name, sz_simple_types[qmm->type]);
fprintf(fp, "int %1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, %4$s *val);\n\n",
package, message, qmm->name, sz_simple_types[qmm->type]);
}
}
static void qmi_message_emit_simple_accessors(FILE *fp,
const char *package,
const char *message,
struct qmi_message_member *qmm)
{
if (qmm->array_size) {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, %4$s *val, size_t count)\n"
"{\n"
" return qmi_tlv_set_array((struct qmi_tlv*)%2$s, %5$d, %6$d, val, count, sizeof(%4$s));\n"
"}\n\n",
package, message, qmm->name, sz_simple_types[qmm->type], qmm->id, qmm->array_size);
fprintf(fp, "%4$s *%1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, size_t *count)\n"
"{\n"
" %4$s *ptr;\n"
" size_t size;\n"
" size_t len;\n"
"\n"
" ptr = qmi_tlv_get_array((struct qmi_tlv*)%2$s, %5$d, %6$d, &len, &size);\n"
" if (!ptr)\n"
" return NULL;\n"
"\n"
" if (size != sizeof(%4$s))\n"
" return NULL;\n"
"\n"
" *count = len;\n"
" return ptr;\n"
"}\n\n",
package, message, qmm->name, sz_simple_types[qmm->type], qmm->id, qmm->array_size);
} else {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, %4$s val)\n"
"{\n"
" return qmi_tlv_set((struct qmi_tlv*)%2$s, %5$d, &val, sizeof(%4$s));\n"
"}\n\n",
package, message, qmm->name, sz_simple_types[qmm->type], qmm->id);
fprintf(fp, "int %1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, %4$s *val)\n"
"{\n"
" %4$s *ptr;\n"
" size_t len;\n"
"\n"
" ptr = qmi_tlv_get((struct qmi_tlv*)%2$s, %5$d, &len);\n"
" if (!ptr)\n"
" return -ENOENT;\n"
"\n"
" if (len != sizeof(%4$s))\n"
" return -EINVAL;\n"
"\n"
" *val = *(%4$s*)ptr;\n"
" return 0;\n"
"}\n\n",
package, message, qmm->name, sz_simple_types[qmm->type], qmm->id);
}
}
static void qmi_message_emit_string_prototype(FILE *fp,
const char *package,
const char *message,
struct qmi_message_member *qmm)
{
if (qmm->array_size) {
fprintf(stderr, "Dont' know how to encode string arrays yet");
exit(1);
} else {
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, char *buf, size_t len);\n",
package, message, qmm->name);
fprintf(fp, "int %1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, char *buf, size_t buflen);\n\n",
package, message, qmm->name);
}
}
static void qmi_message_emit_string_accessors(FILE *fp,
const char *package,
const char *message,
struct qmi_message_member *qmm)
{
fprintf(fp, "int %1$s_%2$s_set_%3$s(struct %1$s_%2$s *%2$s, char *buf, size_t len)\n"
"{\n"
" return qmi_tlv_set((struct qmi_tlv*)%2$s, %4$d, buf, len);\n"
"}\n\n",
package, message, qmm->name, qmm->id);
fprintf(fp, "int %1$s_%2$s_get_%3$s(struct %1$s_%2$s *%2$s, char *buf, size_t buflen)\n"
"{\n"
" size_t len;\n"
" char *ptr;\n"
"\n"
" ptr = qmi_tlv_get((struct qmi_tlv*)%2$s, %4$d, &len);\n"
" if (!ptr)\n"
" return -ENOENT;\n"
"\n"
" if (len >= buflen)\n"
" return -ENOMEM;\n"
"\n"
" memcpy(buf, ptr, len);\n"
" buf[len] = '\\0';\n"
" return len;\n"
"}\n\n",
package, message, qmm->name, qmm->id);
}
static void qmi_message_source(FILE *fp, const char *package)
{
struct qmi_message_member *qmm;
struct qmi_message *qm;
list_for_each_entry(qm, &qmi_messages, node) {
qmi_message_emit_message(fp, package, qm);
list_for_each_entry(qmm, &qm->members, node) {
switch (qmm->type) {
case TYPE_U8:
case TYPE_U16:
case TYPE_U32:
case TYPE_U64:
qmi_message_emit_simple_accessors(fp, package, qm->name, qmm);
break;
case TYPE_STRING:
qmi_message_emit_string_accessors(fp, package, qm->name, qmm);
break;
case TYPE_STRUCT:
qmi_struct_emit_accessors(fp, package, qm->name, qmm->name, qmm->id, qmm->array_size, qmm->qmi_struct);
break;
};
}
}
}
static void qmi_message_header(FILE *fp, const char *package)
{
struct qmi_message_member *qmm;
struct qmi_message *qm;
list_for_each_entry(qm, &qmi_messages, node)
qmi_message_emit_message_type(fp, package, qm->name);
fprintf(fp, "\n");
list_for_each_entry(qm, &qmi_messages, node) {
qmi_message_emit_message_prototype(fp, package, qm->name);
list_for_each_entry(qmm, &qm->members, node) {
switch (qmm->type) {
case TYPE_U8:
case TYPE_U16:
case TYPE_U32:
case TYPE_U64:
qmi_message_emit_simple_prototype(fp, package, qm->name, qmm);
break;
case TYPE_STRING:
qmi_message_emit_string_prototype(fp, package, qm->name, qmm);
break;
case TYPE_STRUCT:
qmi_struct_emit_prototype(fp, package, qm->name, qmm->name, qmm->array_size, qmm->qmi_struct);
break;
};
}
}
}
static void emit_header_file_header(FILE *fp)
{
fprintf(fp, "#include <stdint.h>\n"
"#include <stdlib.h>\n\n");
fprintf(fp, "struct qmi_tlv;\n"
"\n"
"struct qmi_tlv *qmi_tlv_init(unsigned txn, unsigned msg_id, unsigned type);\n"
"struct qmi_tlv *qmi_tlv_decode(void *buf, size_t len, unsigned *txn, unsigned type);\n"
"void *qmi_tlv_encode(struct qmi_tlv *tlv, size_t *len);\n"
"void qmi_tlv_free(struct qmi_tlv *tlv);\n"
"\n"
"void *qmi_tlv_get(struct qmi_tlv *tlv, unsigned id, size_t *len);\n"
"void *qmi_tlv_get_array(struct qmi_tlv *tlv, unsigned id, unsigned len_size, size_t *len, size_t *size);\n"
"int qmi_tlv_set(struct qmi_tlv *tlv, unsigned id, void *buf, size_t len);\n"
"int qmi_tlv_set_array(struct qmi_tlv *tlv, unsigned id, unsigned len_size, void *buf, size_t len, size_t size);\n"
"\n");
}
void accessor_emit_c(FILE *fp, const char *package)
{
emit_source_includes(fp, package);
qmi_message_source(fp, package);
}
void accessor_emit_h(FILE *fp, const char *package)
{
guard_header(fp, qmi_package);
emit_header_file_header(fp);
qmi_const_header(fp);
qmi_struct_header(fp, qmi_package);
qmi_message_header(fp, qmi_package);
guard_footer(fp);
}
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