Changeset a2a5529 in mainline for kernel/genarch/include/kbd/ns16550.h

Timestamp:

2008-11-11T07:50:04Z (16 years ago)

Author:

Jakub Vana <jakub.vana@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

59e4864

Parents:

b24786a

Message:

Support for serial port console on IA64 as a compensation for keyboard - based on SPARC ns16550 driver

File:

• kernel/genarch/include/kbd/ns16550.h (modified) (1 diff)

kernel/genarch/include/kbd/ns16550.h

@@ -49 +49 @@
 extern void ns16550_irq_handler(irq_t *irq, void *arg, ...);
 
+#include <arch/types.h>
+#ifndef ia64
+#include <arch/drivers/kbd.h>
+#endif
+/* NS16550 registers */
+#define RBR_REG         0       /** Receiver Buffer Register. */
+#define IER_REG         1       /** Interrupt Enable Register. */
+#define IIR_REG         2       /** Interrupt Ident Register (read). */
+#define FCR_REG         2       /** FIFO control register (write). */
+#define LCR_REG         3       /** Line Control register. */
+#define LSR_REG         5       /** Line Status Register. */
+
+#define IER_ERBFI       0x01    /** Enable Receive Buffer Full Interrupt. */
+
+#define LCR_DLAB        0x80    /** Divisor Latch Access bit. */
+
+/** Structure representing the ns16550 device. */
+typedef struct {
+        devno_t devno;
+        volatile ioport_t io_port;      /** Memory mapped registers of the ns16550. */
+} ns16550_t;
+
+static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
+{
+        return inb(dev->io_port+RBR_REG);
+}
+static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)
+{
+        outb(dev->io_port+RBR_REG,v);
+}
+
+static inline uint8_t ns16550_ier_read(ns16550_t *dev)
+{
+        return inb(dev->io_port+IER_REG);
+}
+
+static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)
+{
+        outb(dev->io_port+IER_REG,v);
+}
+
+static inline uint8_t ns16550_iir_read(ns16550_t *dev)
+{
+        return inb(dev->io_port+IIR_REG);
+}
+
+static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)
+{
+        outb(dev->io_port+FCR_REG,v);
+}
+
+static inline uint8_t ns16550_lcr_read(ns16550_t *dev)
+{
+        return inb(dev->io_port+LCR_REG);
+}
+
+static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)
+{
+        outb(dev->io_port+LCR_REG,v);
+}
+
+static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
+{
+        return inb(dev->io_port+LSR_REG);
+}
+
+
+
 #endif