summaryrefslogtreecommitdiff
path: root/linux/src/drivers/scsi/eata_pio_proc.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux/src/drivers/scsi/eata_pio_proc.c')
-rw-r--r--linux/src/drivers/scsi/eata_pio_proc.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/linux/src/drivers/scsi/eata_pio_proc.c b/linux/src/drivers/scsi/eata_pio_proc.c
new file mode 100644
index 0000000..54783f2
--- /dev/null
+++ b/linux/src/drivers/scsi/eata_pio_proc.c
@@ -0,0 +1,135 @@
+
+/*
+ * eata_set_info
+ * buffer : pointer to the data that has been written to the hostfile
+ * length : number of bytes written to the hostfile
+ * HBA_ptr: pointer to the Scsi_Host struct
+ */
+int eata_pio_set_info(char *buffer, int length, struct Scsi_Host *HBA_ptr)
+{
+ DBG(DBG_PROC_WRITE, printk("%s\n", buffer));
+ return(-ENOSYS); /* Currently this is a no-op */
+}
+
+/*
+ * eata_proc_info
+ * inout : decides on the direction of the dataflow and the meaning of the
+ * variables
+ * buffer: If inout==FALSE data is being written to it else read from it
+ * *start: If inout==FALSE start of the valid data in the buffer
+ * offset: If inout==FALSE offset from the beginning of the imaginary file
+ * from which we start writing into the buffer
+ * length: If inout==FALSE max number of bytes to be written into the buffer
+ * else number of bytes in the buffer
+ */
+int eata_pio_proc_info(char *buffer, char **start, off_t offset, int length,
+ int hostno, int inout)
+{
+
+ Scsi_Device *scd;
+ struct Scsi_Host *HBA_ptr;
+ static u8 buff[512];
+ int i;
+ int size, len = 0;
+ off_t begin = 0;
+ off_t pos = 0;
+
+ HBA_ptr = first_HBA;
+ for (i = 1; i <= registered_HBAs; i++) {
+ if (HBA_ptr->host_no == hostno)
+ break;
+ HBA_ptr = SD(HBA_ptr)->next;
+ }
+
+ if(inout == TRUE) /* Has data been written to the file ? */
+ return(eata_pio_set_info(buffer, length, HBA_ptr));
+
+ if (offset == 0)
+ memset(buff, 0, sizeof(buff));
+
+ size = sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "
+ "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
+ len += size; pos = begin + len;
+ size = sprintf(buffer + len, "queued commands: %10ld\n"
+ "processed interrupts:%10ld\n", queue_counter, int_counter);
+ len += size; pos = begin + len;
+
+ size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
+ HBA_ptr->host_no, SD(HBA_ptr)->name);
+ len += size;
+ pos = begin + len;
+ size = sprintf(buffer + len, "Firmware revision: v%s\n",
+ SD(HBA_ptr)->revision);
+ len += size;
+ pos = begin + len;
+ size = sprintf(buffer + len, "IO: PIO\n");
+ len += size;
+ pos = begin + len;
+ size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);
+ len += size;
+ pos = begin + len;
+ size = sprintf(buffer + len, "Host Bus: %s\n",
+ (SD(HBA_ptr)->bustype == 'P')?"PCI ":
+ (SD(HBA_ptr)->bustype == 'E')?"EISA":"ISA ");
+
+ len += size;
+ pos = begin + len;
+
+ if (pos < offset) {
+ len = 0;
+ begin = pos;
+ }
+ if (pos > offset + length)
+ goto stop_output;
+
+ scd = scsi_devices;
+
+ size = sprintf(buffer+len,"Attached devices: %s\n", (scd)?"":"none");
+ len += size;
+ pos = begin + len;
+
+ while (scd) {
+ if (scd->host == HBA_ptr) {
+ proc_print_scsidevice(scd, buffer, &size, len);
+ len += size;
+ pos = begin + len;
+
+ if (pos < offset) {
+ len = 0;
+ begin = pos;
+ }
+ if (pos > offset + length)
+ goto stop_output;
+ }
+ scd = scd->next;
+ }
+
+ stop_output:
+ DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));
+ *start=buffer+(offset-begin); /* Start of wanted data */
+ len-=(offset-begin); /* Start slop */
+ if(len>length)
+ len = length; /* Ending slop */
+ DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));
+
+ return (len);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 4
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -4
+ * c-argdecl-indent: 4
+ * c-label-offset: -4
+ * c-continued-statement-offset: 4
+ * c-continued-brace-offset: 0
+ * tab-width: 8
+ * End:
+ */
+