60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
|
// SPDX-License-Identifier: Zlib
|
||
|
|
/* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */
|
||
|
|
|
||
|
|
#include <linux/export.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include "dfltcc_util.h"
|
||
|
|
#include "dfltcc.h"
|
||
|
|
|
||
|
|
char *oesc_msg(
|
||
|
|
char *buf,
|
||
|
|
int oesc
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if (oesc == 0x00)
|
||
|
|
return NULL; /* Successful completion */
|
||
|
|
else {
|
||
|
|
#ifdef STATIC
|
||
|
|
return NULL; /* Ignore for pre-boot decompressor */
|
||
|
|
#else
|
||
|
|
sprintf(buf, "Operation-Ending-Supplemental Code is 0x%.2X", oesc);
|
||
|
|
return buf;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void dfltcc_reset(
|
||
|
|
z_streamp strm,
|
||
|
|
uInt size
|
||
|
|
)
|
||
|
|
{
|
||
|
|
struct dfltcc_state *dfltcc_state =
|
||
|
|
(struct dfltcc_state *)((char *)strm->state + size);
|
||
|
|
struct dfltcc_qaf_param *param =
|
||
|
|
(struct dfltcc_qaf_param *)&dfltcc_state->param;
|
||
|
|
|
||
|
|
/* Initialize available functions */
|
||
|
|
if (is_dfltcc_enabled()) {
|
||
|
|
dfltcc(DFLTCC_QAF, param, NULL, NULL, NULL, NULL, NULL);
|
||
|
|
memmove(&dfltcc_state->af, param, sizeof(dfltcc_state->af));
|
||
|
|
} else
|
||
|
|
memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));
|
||
|
|
|
||
|
|
/* Initialize parameter block */
|
||
|
|
memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param));
|
||
|
|
dfltcc_state->param.nt = 1;
|
||
|
|
|
||
|
|
/* Initialize tuning parameters */
|
||
|
|
if (zlib_dfltcc_support == ZLIB_DFLTCC_FULL_DEBUG)
|
||
|
|
dfltcc_state->level_mask = DFLTCC_LEVEL_MASK_DEBUG;
|
||
|
|
else
|
||
|
|
dfltcc_state->level_mask = DFLTCC_LEVEL_MASK;
|
||
|
|
dfltcc_state->block_size = DFLTCC_BLOCK_SIZE;
|
||
|
|
dfltcc_state->block_threshold = DFLTCC_FIRST_FHT_BLOCK_SIZE;
|
||
|
|
dfltcc_state->dht_threshold = DFLTCC_DHT_MIN_SAMPLE_SIZE;
|
||
|
|
dfltcc_state->param.ribm = DFLTCC_RIBM;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(dfltcc_reset);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|