diff options
Diffstat (limited to 'drivers/serial.c')
| -rw-r--r-- | drivers/serial.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/serial.c b/drivers/serial.c index 228781b..76425d8 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 |