1/*
2 * eata_set_info
3 * buffer : pointer to the data that has been written to the hostfile
4 * length : number of bytes written to the hostfile
5 * HBA_ptr: pointer to the Scsi_Host struct
6 */
7int eata_pio_set_info(char *buffer, int length, struct Scsi_Host *HBA_ptr)
8{
9    DBG(DBG_PROC_WRITE, printk("%s\n", buffer));
10    return(-ENOSYS);  /* Currently this is a no-op */
11}
12
13/*
14 * eata_proc_info
15 * inout : decides on the direction of the dataflow and the meaning of the
16 *         variables
17 * buffer: If inout==FALSE data is being written to it else read from it
18 * *start: If inout==FALSE start of the valid data in the buffer
19 * offset: If inout==FALSE offset from the beginning of the imaginary file
20 *         from which we start writing into the buffer
21 * length: If inout==FALSE max number of bytes to be written into the buffer
22 *         else number of bytes in the buffer
23 */
24int eata_pio_proc_info(char *buffer, char **start, off_t offset, int length,
25		       int hostno, int inout)
26{
27    Scsi_Device *scd;
28    struct Scsi_Host *HBA_ptr;
29    static u8 buff[512];
30    int i;
31    int   size, len = 0;
32    off_t begin = 0;
33    off_t pos = 0;
34
35    HBA_ptr = first_HBA;
36    for (i = 1; i <= registered_HBAs; i++) {
37	if (HBA_ptr->host_no == hostno)
38	    break;
39	HBA_ptr = SD(HBA_ptr)->next;
40    }
41
42    if(inout == TRUE) /* Has data been written to the file ? */
43	return(eata_pio_set_info(buffer, length, HBA_ptr));
44
45    if (offset == 0)
46	memset(buff, 0, sizeof(buff));
47
48    size = sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "
49		   "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
50    len += size; pos = begin + len;
51    size = sprintf(buffer + len, "queued commands:     %10ld\n"
52		   "processed interrupts:%10ld\n", queue_counter, int_counter);
53    len += size; pos = begin + len;
54
55    size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
56		   HBA_ptr->host_no, SD(HBA_ptr)->name);
57    len += size;
58    pos = begin + len;
59    size = sprintf(buffer + len, "Firmware revision: v%s\n",
60		   SD(HBA_ptr)->revision);
61    len += size;
62    pos = begin + len;
63    size = sprintf(buffer + len, "IO: PIO\n");
64    len += size;
65    pos = begin + len;
66    size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);
67    len += size;
68    pos = begin + len;
69    size = sprintf(buffer + len, "Host Bus: %s\n",
70		   (SD(HBA_ptr)->bustype == 'P')?"PCI ":
71		   (SD(HBA_ptr)->bustype == 'E')?"EISA":"ISA ");
72
73    len += size;
74    pos = begin + len;
75
76    if (pos < offset) {
77	len = 0;
78	begin = pos;
79    }
80    if (pos > offset + length)
81	goto stop_output;
82
83    size = sprintf(buffer+len,"Attached devices: %s\n",
84		   (HBA_ptr->host_queue)?"":"none");
85    len += size;
86    pos = begin + len;
87
88    for(scd = HBA_ptr->host_queue; scd; scd = scd->next) {
89	    proc_print_scsidevice(scd, buffer, &size, len);
90	    len += size;
91	    pos = begin + len;
92
93	    if (pos < offset) {
94		len = 0;
95		begin = pos;
96	    }
97	    if (pos > offset + length)
98		goto stop_output;
99    }
100
101 stop_output:
102    DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));
103    *start=buffer+(offset-begin);   /* Start of wanted data */
104    len-=(offset-begin);            /* Start slop */
105    if(len>length)
106	len = length;               /* Ending slop */
107    DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));
108
109    return (len);
110}
111
112/*
113 * Overrides for Emacs so that we follow Linus's tabbing style.
114 * Emacs will notice this stuff at the end of the file and automatically
115 * adjust the settings for this buffer only.  This must remain at the end
116 * of the file.
117 * ---------------------------------------------------------------------------
118 * Local variables:
119 * c-indent-level: 4
120 * c-brace-imaginary-offset: 0
121 * c-brace-offset: -4
122 * c-argdecl-indent: 4
123 * c-label-offset: -4
124 * c-continued-statement-offset: 4
125 * c-continued-brace-offset: 0
126 * tab-width: 8
127 * End:
128 */
129