-
-static int is_keyword(char *ptr, int len, char *verb)
-{
- int verb_len = strlen(verb);
-
- if (len >= strlen(verb) && !memcmp(verb, ptr, verb_len))
- return verb_len;
- else
- return 0;
-
-}
-
-#define SKIP_SPACES(min_spaces) \
- if ((arg_len = skip_spaces(ptr, len)) < (min_spaces)) \
- return -EINVAL; \
- ptr += arg_len; len -= arg_len;
-
-#define GET_INT_ARG(v) \
- if (!(arg_len = get_int_arg(ptr, len, &(v)))) \
- return -EINVAL; \
- ptr += arg_len; len -= arg_len;
-
-
-/*
-** Parse a control command
-*/
-
-static int ncr_user_command(struct ncb *np, char *buffer, int length)
-{
- char *ptr = buffer;
- int len = length;
- struct usrcmd *uc = &np->user;
- int arg_len;
- u_long target;
-
- bzero(uc, sizeof(*uc));
-
- if (len > 0 && ptr[len-1] == '\n')
- --len;
-
- if ((arg_len = is_keyword(ptr, len, "setsync")) != 0)
- uc->cmd = UC_SETSYNC;
- else if ((arg_len = is_keyword(ptr, len, "settags")) != 0)
- uc->cmd = UC_SETTAGS;
- else if ((arg_len = is_keyword(ptr, len, "setorder")) != 0)
- uc->cmd = UC_SETORDER;
- else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0)
- uc->cmd = UC_SETVERBOSE;
- else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0)
- uc->cmd = UC_SETWIDE;
- else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0)
- uc->cmd = UC_SETDEBUG;
- else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0)
- uc->cmd = UC_SETFLAG;
- else
- arg_len = 0;
-
-#ifdef DEBUG_PROC_INFO
-printk("ncr_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd);
-#endif
-
- if (!arg_len)
- return -EINVAL;
- ptr += arg_len; len -= arg_len;
-
- switch(uc->cmd) {
- case UC_SETSYNC:
- case UC_SETTAGS:
- case UC_SETWIDE:
- case UC_SETFLAG:
- SKIP_SPACES(1);
- if ((arg_len = is_keyword(ptr, len, "all")) != 0) {
- ptr += arg_len; len -= arg_len;
- uc->target = ~0;
- } else {
- GET_INT_ARG(target);
- uc->target = (1<<target);
-#ifdef DEBUG_PROC_INFO
-printk("ncr_user_command: target=%ld\n", target);
-#endif
- }
- break;
- }
-
- switch(uc->cmd) {
- case UC_SETVERBOSE:
- case UC_SETSYNC:
- case UC_SETTAGS:
- case UC_SETWIDE:
- SKIP_SPACES(1);
- GET_INT_ARG(uc->data);
-#ifdef DEBUG_PROC_INFO
-printk("ncr_user_command: data=%ld\n", uc->data);
-#endif
- break;
- case UC_SETORDER:
- SKIP_SPACES(1);
- if ((arg_len = is_keyword(ptr, len, "simple")))
- uc->data = M_SIMPLE_TAG;
- else if ((arg_len = is_keyword(ptr, len, "ordered")))
- uc->data = M_ORDERED_TAG;
- else if ((arg_len = is_keyword(ptr, len, "default")))
- uc->data = 0;
- else
- return -EINVAL;
- break;
- case UC_SETDEBUG:
- while (len > 0) {
- SKIP_SPACES(1);
- if ((arg_len = is_keyword(ptr, len, "alloc")))
- uc->data |= DEBUG_ALLOC;
- else if ((arg_len = is_keyword(ptr, len, "phase")))
- uc->data |= DEBUG_PHASE;
- else if ((arg_len = is_keyword(ptr, len, "queue")))
- uc->data |= DEBUG_QUEUE;
- else if ((arg_len = is_keyword(ptr, len, "result")))
- uc->data |= DEBUG_RESULT;
- else if ((arg_len = is_keyword(ptr, len, "scatter")))
- uc->data |= DEBUG_SCATTER;
- else if ((arg_len = is_keyword(ptr, len, "script")))
- uc->data |= DEBUG_SCRIPT;
- else if ((arg_len = is_keyword(ptr, len, "tiny")))
- uc->data |= DEBUG_TINY;
- else if ((arg_len = is_keyword(ptr, len, "timing")))
- uc->data |= DEBUG_TIMING;
- else if ((arg_len = is_keyword(ptr, len, "nego")))
- uc->data |= DEBUG_NEGO;
- else if ((arg_len = is_keyword(ptr, len, "tags")))
- uc->data |= DEBUG_TAGS;
- else
- return -EINVAL;
- ptr += arg_len; len -= arg_len;
- }
-#ifdef DEBUG_PROC_INFO
-printk("ncr_user_command: data=%ld\n", uc->data);
-#endif
- break;
- case UC_SETFLAG:
- while (len > 0) {
- SKIP_SPACES(1);
- if ((arg_len = is_keyword(ptr, len, "trace")))
- uc->data |= UF_TRACE;
- else if ((arg_len = is_keyword(ptr, len, "no_disc")))
- uc->data |= UF_NODISC;
- else
- return -EINVAL;
- ptr += arg_len; len -= arg_len;
- }
- break;
- default:
- break;
- }
-
- if (len)
- return -EINVAL;
- else {
- unsigned long flags;
-
- NCR_LOCK_NCB(np, flags);
- ncr_usercmd (np);
- NCR_UNLOCK_NCB(np, flags);
- }
- return length;
-}
-
-#endif /* SCSI_NCR_USER_COMMAND_SUPPORT */
-
-
-#ifdef SCSI_NCR_USER_INFO_SUPPORT
-/*
-** Copy formatted information into the input buffer.
-*/
-
-static int ncr_host_info(struct ncb *np, char *ptr, off_t offset, int len)
-{
- struct info_str info;
-
- info.buffer = ptr;
- info.length = len;
- info.offset = offset;
- info.pos = 0;
-
- copy_info(&info, " Chip NCR53C720, revision id 0x%x, IRQ %d\n",
- np->revision_id, (int) np->irq);
- copy_info(&info, " Synchronous period factor %d, "
- "max commands per lun %d\n",
- (int) np->minsync, MAX_TAGS);
-
- if (driver_setup.debug || driver_setup.verbose > 1) {
- copy_info(&info, " Debug flags 0x%x, verbosity level %d\n",
- driver_setup.debug, driver_setup.verbose);
- }
-
- return info.pos > info.offset? info.pos - info.offset : 0;
-}
-
-#endif /* SCSI_NCR_USER_INFO_SUPPORT */
-
-/*
-** Entry point of the scsi proc fs of the driver.
-** - func = 0 means read (returns profile data)
-** - func = 1 means write (parse user control command)
-*/
-
-static int ncr53c8xx_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
- int length, int func)
-{
- struct host_data *host_data;
- struct ncb *ncb = NULL;
- int retv;
-
-#ifdef DEBUG_PROC_INFO
-printk("ncr53c8xx_proc_info: hostno=%d, func=%d\n", host->host_no, func);
-#endif
-
- host_data = (struct host_data *) host->hostdata;
- ncb = host_data->ncb;
-
- if (func) {
-#ifdef SCSI_NCR_USER_COMMAND_SUPPORT
- retv = ncr_user_command(ncb, buffer, length);
-#else
- retv = -EINVAL;
-#endif
- }
- else {
- if (start)
- *start = buffer;
-#ifdef SCSI_NCR_USER_INFO_SUPPORT
- retv = ncr_host_info(ncb, buffer, offset, length);
-#else
- retv = -EINVAL;
-#endif
- }
-
- return retv;
-}
-
-/*=========================================================================
-** End of proc file system stuff
-**=========================================================================
-*/
-#endif
-