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some serial config support

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-07-18 14:43:23 +02:00
parent 8c8e269906
commit 1da07b142b
4 changed files with 124 additions and 24 deletions
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31
include/grub/serial.h
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@ -36,12 +36,26 @@ struct grub_serial_driver
void (*put) (struct grub_serial_port *port, const int c);
};
/* The type of parity. */
typedef enum
{
GRUB_SERIAL_PARITY_NONE,
GRUB_SERIAL_PARITY_ODD,
GRUB_SERIAL_PARITY_EVEN,
} grub_serial_parity_t;
typedef enum
{
GRUB_SERIAL_STOP_BITS_1,
GRUB_SERIAL_STOP_BITS_2,
} grub_serial_stop_bits_t;
struct grub_serial_config
{
unsigned speed;
unsigned short word_len;
unsigned int parity;
unsigned short stop_bits;
grub_serial_parity_t parity;
grub_serial_stop_bits_t stop_bits;
};
struct grub_serial_port
@ -76,15 +90,6 @@ void grub_serial_unregister (struct grub_serial_port *port);
#define UART_7BITS_WORD 0x02
#define UART_8BITS_WORD 0x03
/* The type of parity. */
#define UART_NO_PARITY 0x00
#define UART_ODD_PARITY 0x08
#define UART_EVEN_PARITY 0x18
/* The type of the length of stop bit. */
#define UART_1_STOP_BIT 0x00
#define UART_2_STOP_BITS 0x04
/* Set default settings. */
static inline grub_err_t
grub_serial_config_defaults (struct grub_serial_port *port)
@ -97,8 +102,8 @@ grub_serial_config_defaults (struct grub_serial_port *port)
.speed = 9600,
#endif
.word_len = UART_8BITS_WORD,
.parity = UART_NO_PARITY,
.stop_bits = UART_1_STOP_BIT
.parity = GRUB_SERIAL_PARITY_NONE,
.stop_bits = GRUB_SERIAL_STOP_BITS_1
};
return port->driver->configure (port, &config);