1 // SPDX-License-Identifier: Zlib 2 /* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */ 3 4 #include <linux/export.h> 5 #include <linux/module.h> 6 #include "dfltcc_util.h" 7 #include "dfltcc.h" 8 9 char *oesc_msg( 10 char *buf, 11 int oesc 12 ) 13 { 14 if (oesc == 0x00) 15 return NULL; /* Successful completion */ 16 else { 17 #ifdef STATIC 18 return NULL; /* Ignore for pre-boot decompressor */ 19 #else 20 sprintf(buf, "Operation-Ending-Supplemental Code is 0x%.2X", oesc); 21 return buf; 22 #endif 23 } 24 } 25 26 void dfltcc_reset_state(struct dfltcc_state *dfltcc_state) { 27 /* Initialize available functions */ 28 if (is_dfltcc_enabled()) { 29 dfltcc(DFLTCC_QAF, &dfltcc_state->param, NULL, NULL, NULL, NULL, NULL); 30 memmove(&dfltcc_state->af, &dfltcc_state->param, sizeof(dfltcc_state->af)); 31 } else 32 memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af)); 33 34 /* Initialize parameter block */ 35 memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param)); 36 dfltcc_state->param.nt = 1; 37 dfltcc_state->param.ribm = DFLTCC_RIBM; 38 } 39 40 MODULE_LICENSE("GPL"); 41