/* Translate the period into ns according to the current spec
* for SDTR/PPR messages */
-static ssize_t
-show_spi_transport_period_helper(struct class_device *cdev, char *buf,
- int period)
+static int period_to_str(char *buf, int period)
{
int len, picosec;
len = sprint_frac(buf, picosec, 1000);
}
+ return len;
+}
+
+static ssize_t
+show_spi_transport_period_helper(struct class_device *cdev, char *buf,
+ int period)
+{
+ int len = period_to_str(buf, period);
buf[len++] = '\n';
buf[len] = '\0';
return len;
/* 0x0c */ "Bus device reset", "Abort Tag", "Clear Queue",
/* 0x0f */ "Initiate Recovery", "Release Recovery"
};
-#define NO_ONE_BYTE_MSGS (sizeof(one_byte_msgs) / sizeof (const char *))
static const char * const two_byte_msgs[] = {
-/* 0x20 */ "Simple Queue Tag", "Head of Queue Tag", "Ordered Queue Tag"
+/* 0x20 */ "Simple Queue Tag", "Head of Queue Tag", "Ordered Queue Tag",
/* 0x23 */ "Ignore Wide Residue"
};
-#define NO_TWO_BYTE_MSGS (sizeof(two_byte_msgs) / sizeof (const char *))
static const char * const extended_msgs[] = {
/* 0x00 */ "Modify Data Pointer", "Synchronous Data Transfer Request",
-/* 0x02 */ "SCSI-I Extended Identify", "Wide Data Transfer Request"
+/* 0x02 */ "SCSI-I Extended Identify", "Wide Data Transfer Request",
+/* 0x04 */ "Parallel Protocol Request"
};
-#define NO_EXTENDED_MSGS (sizeof(two_byte_msgs) / sizeof (const char *))
+static void print_nego(const unsigned char *msg, int per, int off, int width)
+{
+ if (per) {
+ char buf[20];
+ period_to_str(buf, msg[per]);
+ printk("period = %s ns ", buf);
+ }
-int scsi_print_msg (const unsigned char *msg)
+ if (off)
+ printk("offset = %d ", msg[off]);
+ if (width)
+ printk("width = %d ", 8 << msg[width]);
+}
+
+int spi_print_msg(const unsigned char *msg)
{
int len = 0, i;
if (msg[0] == EXTENDED_MESSAGE) {
len = 3 + msg[1];
- if (msg[2] < NO_EXTENDED_MSGS)
+ if (msg[2] < ARRAY_SIZE(extended_msgs))
printk ("%s ", extended_msgs[msg[2]]);
else
printk ("Extended Message, reserved code (0x%02x) ",
(msg[4] << 16) | (msg[5] << 8) | msg[6]);
break;
case EXTENDED_SDTR:
- printk("period = %d ns, offset = %d",
- (int) msg[3] * 4, (int) msg[4]);
+ print_nego(msg, 3, 4, 0);
break;
case EXTENDED_WDTR:
- printk("width = 2^%d bytes", msg[3]);
+ print_nego(msg, 0, 0, 3);
+ break;
+ case EXTENDED_PPR:
+ print_nego(msg, 3, 5, 6);
break;
default:
for (i = 2; i < len; ++i)
len = 1;
/* Normal One byte */
} else if (msg[0] < 0x1f) {
- if (msg[0] < NO_ONE_BYTE_MSGS)
+ if (msg[0] < ARRAY_SIZE(one_byte_msgs))
printk(one_byte_msgs[msg[0]]);
else
printk("reserved (%02x) ", msg[0]);
len = 1;
/* Two byte */
} else if (msg[0] <= 0x2f) {
- if ((msg[0] - 0x20) < NO_TWO_BYTE_MSGS)
+ if ((msg[0] - 0x20) < ARRAY_SIZE(two_byte_msgs))
printk("%s %02x ", two_byte_msgs[msg[0] - 0x20],
msg[1]);
else
printk("reserved");
return len;
}
-EXPORT_SYMBOL(scsi_print_msg);
+EXPORT_SYMBOL(spi_print_msg);
#else /* ifndef CONFIG_SCSI_CONSTANTS */
-int scsi_print_msg (const unsigned char *msg)
+int spi_print_msg(const unsigned char *msg)
{
int len = 0, i;
printk("%02x ", msg[0]);
return len;
}
-EXPORT_SYMBOL(scsi_print_msg);
+EXPORT_SYMBOL(spi_print_msg);
#endif /* ! CONFIG_SCSI_CONSTANTS */
#define SETUP_ATTRIBUTE(field) \