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1.1 root 1:
2: /*
3: * eata_set_info
4: * buffer : pointer to the data that has been written to the hostfile
5: * length : number of bytes written to the hostfile
6: * HBA_ptr: pointer to the Scsi_Host struct
7: */
8: int eata_pio_set_info(char *buffer, int length, struct Scsi_Host *HBA_ptr)
9: {
10: DBG(DBG_PROC_WRITE, printk("%s\n", buffer));
11: return(-ENOSYS); /* Currently this is a no-op */
12: }
13:
14: /*
15: * eata_proc_info
16: * inout : decides on the direction of the dataflow and the meaning of the
17: * variables
18: * buffer: If inout==FALSE data is being written to it else read from it
19: * *start: If inout==FALSE start of the valid data in the buffer
20: * offset: If inout==FALSE offset from the beginning of the imaginary file
21: * from which we start writing into the buffer
22: * length: If inout==FALSE max number of bytes to be written into the buffer
23: * else number of bytes in the buffer
24: */
25: int eata_pio_proc_info(char *buffer, char **start, off_t offset, int length,
26: int hostno, int inout)
27: {
28:
29: Scsi_Device *scd;
30: struct Scsi_Host *HBA_ptr;
31: static u8 buff[512];
32: int i;
33: int size, len = 0;
34: off_t begin = 0;
35: off_t pos = 0;
36:
37: HBA_ptr = first_HBA;
38: for (i = 1; i <= registered_HBAs; i++) {
39: if (HBA_ptr->host_no == hostno)
40: break;
41: HBA_ptr = SD(HBA_ptr)->next;
42: }
43:
44: if(inout == TRUE) /* Has data been written to the file ? */
45: return(eata_pio_set_info(buffer, length, HBA_ptr));
46:
47: if (offset == 0)
48: memset(buff, 0, sizeof(buff));
49:
50: size = sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "
51: "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
52: len += size; pos = begin + len;
53: size = sprintf(buffer + len, "queued commands: %10ld\n"
54: "processed interrupts:%10ld\n", queue_counter, int_counter);
55: len += size; pos = begin + len;
56:
57: size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
58: HBA_ptr->host_no, SD(HBA_ptr)->name);
59: len += size;
60: pos = begin + len;
61: size = sprintf(buffer + len, "Firmware revision: v%s\n",
62: SD(HBA_ptr)->revision);
63: len += size;
64: pos = begin + len;
65: size = sprintf(buffer + len, "IO: PIO\n");
66: len += size;
67: pos = begin + len;
68: size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);
69: len += size;
70: pos = begin + len;
71: size = sprintf(buffer + len, "Host Bus: %s\n",
72: (SD(HBA_ptr)->bustype == 'P')?"PCI ":
73: (SD(HBA_ptr)->bustype == 'E')?"EISA":"ISA ");
74:
75: len += size;
76: pos = begin + len;
77:
78: if (pos < offset) {
79: len = 0;
80: begin = pos;
81: }
82: if (pos > offset + length)
83: goto stop_output;
84:
85: scd = scsi_devices;
86:
87: size = sprintf(buffer+len,"Attached devices: %s\n", (scd)?"":"none");
88: len += size;
89: pos = begin + len;
90:
91: while (scd) {
92: if (scd->host == HBA_ptr) {
93: proc_print_scsidevice(scd, buffer, &size, len);
94: len += size;
95: pos = begin + len;
96:
97: if (pos < offset) {
98: len = 0;
99: begin = pos;
100: }
101: if (pos > offset + length)
102: goto stop_output;
103: }
104: scd = scd->next;
105: }
106:
107: stop_output:
108: DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));
109: *start=buffer+(offset-begin); /* Start of wanted data */
110: len-=(offset-begin); /* Start slop */
111: if(len>length)
112: len = length; /* Ending slop */
113: DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));
114:
115: return (len);
116: }
117:
118: /*
119: * Overrides for Emacs so that we follow Linus's tabbing style.
120: * Emacs will notice this stuff at the end of the file and automatically
121: * adjust the settings for this buffer only. This must remain at the end
122: * of the file.
123: * ---------------------------------------------------------------------------
124: * Local variables:
125: * c-indent-level: 4
126: * c-brace-imaginary-offset: 0
127: * c-brace-offset: -4
128: * c-argdecl-indent: 4
129: * c-label-offset: -4
130: * c-continued-statement-offset: 4
131: * c-continued-brace-offset: 0
132: * tab-width: 8
133: * End:
134: */
135:
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