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Diffstat (limited to 'drivers/serial.c')
-rw-r--r--drivers/serial.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/serial.c b/drivers/serial.c
index 228781b..8d1ae96 100644
--- a/drivers/serial.c
+++ b/drivers/serial.c
@@ -30,10 +30,20 @@
#include <ns87308.h>
#endif
+#if defined (CONFIG_SERIAL_MULTI)
+#include <serial.h>
+#endif
+
DECLARE_GLOBAL_DATA_PTR;
#if !defined(CONFIG_CONS_INDEX)
+#if defined (CONFIG_SERIAL_MULTI)
+/* with CONFIG_SERIAL_MULTI we might have no console
+ * on these devices
+ */
+#else
#error "No console index specified."
+#endif /* CONFIG_SERIAL_MULTI */
#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4)
#error "Invalid console index value."
#endif
@@ -75,7 +85,42 @@ static NS16550_t serial_ports[4] = {
};
#define PORT serial_ports[port-1]
+#if defined(CONFIG_CONS_INDEX)
#define CONSOLE (serial_ports[CONFIG_CONS_INDEX-1])
+#endif
+
+#if defined(CONFIG_SERIAL_MULTI)
+
+/* Multi serial device functions */
+#define DECLARE_ESERIAL_FUNCTIONS(port) \
+ int eserial##port##_init (void) {\
+ int clock_divisor; \
+ clock_divisor = calc_divisor(serial_ports[port-1]); \
+ NS16550_init(serial_ports[port-1], clock_divisor); \
+ return(0);}\
+ void eserial##port##_setbrg (void) {\
+ serial_setbrg_dev(port);}\
+ int eserial##port##_getc (void) {\
+ return serial_getc_dev(port);}\
+ int eserial##port##_tstc (void) {\
+ return serial_tstc_dev(port);}\
+ void eserial##port##_putc (const char c) {\
+ serial_putc_dev(port, c);}\
+ void eserial##port##_puts (const char *s) {\
+ serial_puts_dev(port, s);}
+
+/* Serial device descriptor */
+#define INIT_ESERIAL_STRUCTURE(port,name,bus) {\
+ name,\
+ bus,\
+ eserial##port##_init,\
+ eserial##port##_setbrg,\
+ eserial##port##_getc,\
+ eserial##port##_tstc,\
+ eserial##port##_putc,\
+ eserial##port##_puts, }
+
+#endif /* CONFIG_SERIAL_MULTI */
static int calc_divisor (NS16550_t port)
{
@@ -103,6 +148,7 @@ static int calc_divisor (NS16550_t port)
}
+#if !defined(CONFIG_SERIAL_MULTI)
int serial_init (void)
{
int clock_divisor;
@@ -130,6 +176,7 @@ int serial_init (void)
return (0);
}
+#endif
void
_serial_putc(const char c,const int port)
@@ -176,40 +223,104 @@ _serial_setbrg (const int port)
NS16550_reinit(PORT, clock_divisor);
}
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_putc_dev(unsigned int dev_index,const char c)
+{
+ _serial_putc(c,dev_index);
+}
+#else
void
serial_putc(const char c)
{
_serial_putc(c,CONFIG_CONS_INDEX);
}
+#endif
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_putc_raw_dev(unsigned int dev_index,const char c)
+{
+ _serial_putc_raw(c,dev_index);
+}
+#else
void
serial_putc_raw(const char c)
{
_serial_putc_raw(c,CONFIG_CONS_INDEX);
}
+#endif
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_puts_dev(unsigned int dev_index,const char *s)
+{
+ _serial_puts(s,dev_index);
+}
+#else
void
serial_puts(const char *s)
{
_serial_puts(s,CONFIG_CONS_INDEX);
}
+#endif
+#if defined(CONFIG_SERIAL_MULTI)
+static inline int
+serial_getc_dev(unsigned int dev_index)
+{
+ return _serial_getc(dev_index);
+}
+#else
int
serial_getc(void)
{
return _serial_getc(CONFIG_CONS_INDEX);
}
+#endif
+#if defined(CONFIG_SERIAL_MULTI)
+static inline int
+serial_tstc_dev(unsigned int dev_index)
+{
+ return _serial_tstc(dev_index);
+}
+#else
int
serial_tstc(void)
{
return _serial_tstc(CONFIG_CONS_INDEX);
}
+#endif
+#if defined(CONFIG_SERIAL_MULTI)
+static inline void
+serial_setbrg_dev(unsigned int dev_index)
+{
+ _serial_setbrg(dev_index);
+}
+#else
void
serial_setbrg(void)
{
_serial_setbrg(CONFIG_CONS_INDEX);
}
+#endif
+
+#if defined(CONFIG_SERIAL_MULTI)
+
+DECLARE_ESERIAL_FUNCTIONS(1);
+struct serial_device eserial1_device =
+ INIT_ESERIAL_STRUCTURE(1,"eserial0","EUART1");
+DECLARE_ESERIAL_FUNCTIONS(2);
+struct serial_device eserial2_device =
+ INIT_ESERIAL_STRUCTURE(2,"eserial1","EUART2");
+DECLARE_ESERIAL_FUNCTIONS(3);
+struct serial_device eserial3_device =
+ INIT_ESERIAL_STRUCTURE(3,"eserial2","EUART3");
+DECLARE_ESERIAL_FUNCTIONS(4);
+struct serial_device eserial4_device =
+ INIT_ESERIAL_STRUCTURE(4,"eserial3","EUART4");
+#endif /* CONFIG_SERIAL_MULTI */
#endif