1 /* 2 * drivers/s390/net/ctcm_dbug.c 3 * 4 * Copyright IBM Corp. 2001, 2007 5 * Authors: Peter Tiedemann (ptiedem@de.ibm.com) 6 * 7 */ 8 9 #include <linux/stddef.h> 10 #include <linux/string.h> 11 #include <linux/kernel.h> 12 #include <linux/errno.h> 13 #include <linux/slab.h> 14 #include <linux/ctype.h> 15 #include <linux/sysctl.h> 16 #include <linux/module.h> 17 #include <linux/init.h> 18 #include <linux/fs.h> 19 #include <linux/debugfs.h> 20 #include "ctcm_dbug.h" 21 22 /* 23 * Debug Facility Stuff 24 */ 25 26 struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = { 27 [CTCM_DBF_SETUP] = {"ctc_setup", 8, 1, 64, CTC_DBF_INFO, NULL}, 28 [CTCM_DBF_ERROR] = {"ctc_error", 8, 1, 64, CTC_DBF_ERROR, NULL}, 29 [CTCM_DBF_TRACE] = {"ctc_trace", 8, 1, 64, CTC_DBF_ERROR, NULL}, 30 [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 80, CTC_DBF_INFO, NULL}, 31 [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 80, CTC_DBF_ERROR, NULL}, 32 [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 80, CTC_DBF_ERROR, NULL}, 33 }; 34 35 void ctcm_unregister_dbf_views(void) 36 { 37 int x; 38 for (x = 0; x < CTCM_DBF_INFOS; x++) { 39 debug_unregister(ctcm_dbf[x].id); 40 ctcm_dbf[x].id = NULL; 41 } 42 } 43 44 int ctcm_register_dbf_views(void) 45 { 46 int x; 47 for (x = 0; x < CTCM_DBF_INFOS; x++) { 48 /* register the areas */ 49 ctcm_dbf[x].id = debug_register(ctcm_dbf[x].name, 50 ctcm_dbf[x].pages, 51 ctcm_dbf[x].areas, 52 ctcm_dbf[x].len); 53 if (ctcm_dbf[x].id == NULL) { 54 ctcm_unregister_dbf_views(); 55 return -ENOMEM; 56 } 57 58 /* register a view */ 59 debug_register_view(ctcm_dbf[x].id, &debug_hex_ascii_view); 60 /* set a passing level */ 61 debug_set_level(ctcm_dbf[x].id, ctcm_dbf[x].level); 62 } 63 64 return 0; 65 } 66 67 void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...) 68 { 69 char dbf_txt_buf[64]; 70 va_list args; 71 72 if (level > (ctcm_dbf[dbf_nix].id)->level) 73 return; 74 va_start(args, fmt); 75 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 76 va_end(args); 77 78 debug_text_event(ctcm_dbf[dbf_nix].id, level, dbf_txt_buf); 79 } 80 81