aboutsummaryrefslogtreecommitdiff
path: root/drivers/char/ip2/ip2.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/ip2/ip2.h')
-rw-r--r--drivers/char/ip2/ip2.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/char/ip2/ip2.h b/drivers/char/ip2/ip2.h
new file mode 100644
index 00000000000..936ccc53394
--- /dev/null
+++ b/drivers/char/ip2/ip2.h
@@ -0,0 +1,107 @@
+/*******************************************************************************
+*
+* (c) 1998 by Computone Corporation
+*
+********************************************************************************
+*
+*
+* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
+* serial I/O controllers.
+*
+* DESCRIPTION: Driver constants for configuration and tuning
+*
+* NOTES:
+*
+*******************************************************************************/
+#ifndef IP2_H
+#define IP2_H
+
+#include "ip2types.h"
+#include "i2cmd.h"
+
+/*************/
+/* Constants */
+/*************/
+
+/* Device major numbers - since version 2.0.26. */
+#define IP2_TTY_MAJOR 71
+#define IP2_CALLOUT_MAJOR 72
+#define IP2_IPL_MAJOR 73
+
+/* Board configuration array.
+ * This array defines the hardware irq and address for up to IP2_MAX_BOARDS
+ * (4 supported per ip2_types.h) ISA board addresses and irqs MUST be specified,
+ * PCI and EISA boards are probed for and automagicly configed
+ * iff the addresses are set to 1 and 2 respectivily.
+ * 0x0100 - 0x03f0 == ISA
+ * 1 == PCI
+ * 2 == EISA
+ * 0 == (skip this board)
+ * This array defines the hardware addresses for them. Special
+ * addresses are EISA and PCI which go sniffing for boards.
+
+ * In a multiboard system the position in the array determines which port
+ * devices are assigned to each board:
+ * board 0 is assigned ttyF0.. to ttyF63,
+ * board 1 is assigned ttyF64 to ttyF127,
+ * board 2 is assigned ttyF128 to ttyF191,
+ * board 3 is assigned ttyF192 to ttyF255.
+ *
+ * In PCI and EISA bus systems each range is mapped to card in
+ * monotonically increasing slot number order, ISA position is as specified
+ * here.
+
+ * If the irqs are ALL set to 0,0,0,0 all boards operate in
+ * polled mode. For interrupt operation ISA boards require that the IRQ be
+ * specified, while PCI and EISA boards any nonzero entry
+ * will enable interrupts using the BIOS configured irq for the board.
+ * An invalid irq entry will default to polled mode for that card and print
+ * console warning.
+
+ * When the driver is loaded as a module these setting can be overridden on the
+ * modprobe command line or on an option line in /etc/modprobe.conf.
+ * If the driver is built-in the configuration must be
+ * set here for ISA cards and address set to 1 and 2 for PCI and EISA.
+ *
+ * Here is an example that shows most if not all possibe combinations:
+
+ *static ip2config_t ip2config =
+ *{
+ * {11,1,0,0}, // irqs
+ * { // Addresses
+ * 0x0308, // Board 0, ttyF0 - ttyF63// ISA card at io=0x308, irq=11
+ * 0x0001, // Board 1, ttyF64 - ttyF127//PCI card configured by BIOS
+ * 0x0000, // Board 2, ttyF128 - ttyF191// Slot skipped
+ * 0x0002 // Board 3, ttyF192 - ttyF255//EISA card configured by BIOS
+ * // but polled not irq driven
+ * }
+ *};
+ */
+
+ /* this structure is zeroed out because the suggested method is to configure
+ * the driver as a module, set up the parameters with an options line in
+ * /etc/modprobe.conf and load with modprobe or kmod, the kernel
+ * module loader
+ */
+
+ /* This structure is NOW always initialized when the driver is initialized.
+ * Compiled in defaults MUST be added to the io and irq arrays in
+ * ip2.c. Those values are configurable from insmod parameters in the
+ * case of modules or from command line parameters (ip2=io,irq) when
+ * compiled in.
+ */
+
+static ip2config_t ip2config =
+{
+ {0,0,0,0}, // irqs
+ { // Addresses
+ /* Do NOT set compile time defaults HERE! Use the arrays in
+ ip2.c! These WILL be overwritten! =mhw= */
+ 0x0000, // Board 0, ttyF0 - ttyF63
+ 0x0000, // Board 1, ttyF64 - ttyF127
+ 0x0000, // Board 2, ttyF128 - ttyF191
+ 0x0000 // Board 3, ttyF192 - ttyF255
+ }
+};
+
+#endif