aboutsummaryrefslogtreecommitdiff
path: root/drivers/serial/dz.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/serial/dz.h')
-rw-r--r--drivers/serial/dz.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/serial/dz.h b/drivers/serial/dz.h
new file mode 100644
index 00000000000..86ef417382b
--- /dev/null
+++ b/drivers/serial/dz.h
@@ -0,0 +1,118 @@
+/*
+ * dz.h: Serial port driver for DECStations equiped
+ * with the DZ chipset.
+ *
+ * Copyright (C) 1998 Olivier A. D. Lebaillif
+ *
+ * Email: olivier.lebaillif@ifrsys.com
+ *
+ */
+#ifndef DZ_SERIAL_H
+#define DZ_SERIAL_H
+
+/*
+ * Definitions for the Control and Status Received.
+ */
+#define DZ_TRDY 0x8000 /* Transmitter empty */
+#define DZ_TIE 0x4000 /* Transmitter Interrupt Enable */
+#define DZ_RDONE 0x0080 /* Receiver data ready */
+#define DZ_RIE 0x0040 /* Receive Interrupt Enable */
+#define DZ_MSE 0x0020 /* Master Scan Enable */
+#define DZ_CLR 0x0010 /* Master reset */
+#define DZ_MAINT 0x0008 /* Loop Back Mode */
+
+/*
+ * Definitions for the Received buffer.
+ */
+#define DZ_RBUF_MASK 0x00FF /* Data Mask in the Receive Buffer */
+#define DZ_LINE_MASK 0x0300 /* Line Mask in the Receive Buffer */
+#define DZ_DVAL 0x8000 /* Valid Data indicator */
+#define DZ_OERR 0x4000 /* Overrun error indicator */
+#define DZ_FERR 0x2000 /* Frame error indicator */
+#define DZ_PERR 0x1000 /* Parity error indicator */
+
+#define LINE(x) (x & DZ_LINE_MASK) >> 8 /* Get the line number from the input buffer */
+#define UCHAR(x) (unsigned char)(x & DZ_RBUF_MASK)
+
+/*
+ * Definitions for the Transmit Register.
+ */
+#define DZ_LINE_KEYBOARD 0x0001
+#define DZ_LINE_MOUSE 0x0002
+#define DZ_LINE_MODEM 0x0004
+#define DZ_LINE_PRINTER 0x0008
+
+#define DZ_MODEM_DTR 0x0400 /* DTR for the modem line (2) */
+
+/*
+ * Definitions for the Modem Status Register.
+ */
+#define DZ_MODEM_DSR 0x0200 /* DSR for the modem line (2) */
+
+/*
+ * Definitions for the Transmit Data Register.
+ */
+#define DZ_BRK0 0x0100 /* Break assertion for line 0 */
+#define DZ_BRK1 0x0200 /* Break assertion for line 1 */
+#define DZ_BRK2 0x0400 /* Break assertion for line 2 */
+#define DZ_BRK3 0x0800 /* Break assertion for line 3 */
+
+/*
+ * Definitions for the Line Parameter Register.
+ */
+#define DZ_KEYBOARD 0x0000 /* line 0 = keyboard */
+#define DZ_MOUSE 0x0001 /* line 1 = mouse */
+#define DZ_MODEM 0x0002 /* line 2 = modem */
+#define DZ_PRINTER 0x0003 /* line 3 = printer */
+
+#define DZ_CSIZE 0x0018 /* Number of bits per byte (mask) */
+#define DZ_CS5 0x0000 /* 5 bits per byte */
+#define DZ_CS6 0x0008 /* 6 bits per byte */
+#define DZ_CS7 0x0010 /* 7 bits per byte */
+#define DZ_CS8 0x0018 /* 8 bits per byte */
+
+#define DZ_CSTOPB 0x0020 /* 2 stop bits instead of one */
+
+#define DZ_PARENB 0x0040 /* Parity enable */
+#define DZ_PARODD 0x0080 /* Odd parity instead of even */
+
+#define DZ_CBAUD 0x0E00 /* Baud Rate (mask) */
+#define DZ_B50 0x0000
+#define DZ_B75 0x0100
+#define DZ_B110 0x0200
+#define DZ_B134 0x0300
+#define DZ_B150 0x0400
+#define DZ_B300 0x0500
+#define DZ_B600 0x0600
+#define DZ_B1200 0x0700
+#define DZ_B1800 0x0800
+#define DZ_B2000 0x0900
+#define DZ_B2400 0x0A00
+#define DZ_B3600 0x0B00
+#define DZ_B4800 0x0C00
+#define DZ_B7200 0x0D00
+#define DZ_B9600 0x0E00
+
+#define DZ_CREAD 0x1000 /* Enable receiver */
+#define DZ_RXENAB 0x1000 /* enable receive char */
+/*
+ * Addresses for the DZ registers
+ */
+#define DZ_CSR 0x00 /* Control and Status Register */
+#define DZ_RBUF 0x08 /* Receive Buffer */
+#define DZ_LPR 0x08 /* Line Parameters Register */
+#define DZ_TCR 0x10 /* Transmitter Control Register */
+#define DZ_MSR 0x18 /* Modem Status Register */
+#define DZ_TDR 0x18 /* Transmit Data Register */
+
+#define DZ_NB_PORT 4
+
+#define DZ_XMIT_SIZE 4096 /* buffer size */
+#define DZ_WAKEUP_CHARS DZ_XMIT_SIZE/4
+
+#ifdef MODULE
+int init_module (void)
+void cleanup_module (void)
+#endif
+
+#endif /* DZ_SERIAL_H */