Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/pcmcia/nsp_message.c b/drivers/scsi/pcmcia/nsp_message.c
new file mode 100644
index 0000000..d705773
--- /dev/null
+++ b/drivers/scsi/pcmcia/nsp_message.c
@@ -0,0 +1,78 @@
+/*==========================================================================
+ NinjaSCSI-3 message handler
+ By: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License.
+ */
+
+/* $Id: nsp_message.c,v 1.6 2003/07/26 14:21:09 elca Exp $ */
+
+static void nsp_message_in(Scsi_Cmnd *SCpnt)
+{
+ unsigned int base = SCpnt->device->host->io_port;
+ nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
+ unsigned char data_reg, control_reg;
+ int ret, len;
+
+ /*
+ * XXX: NSP QUIRK
+ * NSP invoke interrupts only in the case of scsi phase changes,
+ * therefore we should poll the scsi phase here to catch
+ * the next "msg in" if exists (no scsi phase changes).
+ */
+ ret = 16;
+ len = 0;
+
+ nsp_dbg(NSP_DEBUG_MSGINOCCUR, "msgin loop");
+ do {
+ /* read data */
+ data_reg = nsp_index_read(base, SCSIDATAIN);
+
+ /* assert ACK */
+ control_reg = nsp_index_read(base, SCSIBUSCTRL);
+ control_reg |= SCSI_ACK;
+ nsp_index_write(base, SCSIBUSCTRL, control_reg);
+ nsp_negate_signal(SCpnt, BUSMON_REQ, "msgin<REQ>");
+
+ data->MsgBuffer[len] = data_reg; len++;
+
+ /* deassert ACK */
+ control_reg = nsp_index_read(base, SCSIBUSCTRL);
+ control_reg &= ~SCSI_ACK;
+ nsp_index_write(base, SCSIBUSCTRL, control_reg);
+
+ /* catch a next signal */
+ ret = nsp_expect_signal(SCpnt, BUSPHASE_MESSAGE_IN, BUSMON_REQ);
+ } while (ret > 0 && MSGBUF_SIZE > len);
+
+ data->MsgLen = len;
+
+}
+
+static void nsp_message_out(Scsi_Cmnd *SCpnt)
+{
+ nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
+ int ret = 1;
+ int len = data->MsgLen;
+
+ /*
+ * XXX: NSP QUIRK
+ * NSP invoke interrupts only in the case of scsi phase changes,
+ * therefore we should poll the scsi phase here to catch
+ * the next "msg out" if exists (no scsi phase changes).
+ */
+
+ nsp_dbg(NSP_DEBUG_MSGOUTOCCUR, "msgout loop");
+ do {
+ if (nsp_xfer(SCpnt, BUSPHASE_MESSAGE_OUT)) {
+ nsp_msg(KERN_DEBUG, "msgout: xfer short");
+ }
+
+ /* catch a next signal */
+ ret = nsp_expect_signal(SCpnt, BUSPHASE_MESSAGE_OUT, BUSMON_REQ);
+ } while (ret > 0 && len-- > 0);
+
+}
+
+/* end */