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usbserial basic support. Works in qemu

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-07-18 12:53:35 +02:00
parent cbf41813b3
commit 34364df689
6 changed files with 189 additions and 181 deletions
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24
include/grub/serial.h
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@ -47,6 +47,7 @@ struct grub_serial_port
unsigned int parity;
unsigned short stop_bits;
struct grub_serial_driver *driver;
int configured;
/* This should be void *data but since serial is useful as an early console
when malloc isn't available it's a union.
*/
@ -55,9 +56,9 @@ struct grub_serial_port
grub_port_t port;
struct
{
grub_usb_device_t dev;
int in_endp;
int out_endp;
grub_usb_device_t usbdev;
struct grub_usb_desc_endp *in_endp;
struct grub_usb_desc_endp *out_endp;
};
};
};
@ -81,18 +82,19 @@ void grub_serial_unregister (struct grub_serial_port *port);
#define UART_1_STOP_BIT 0x00
#define UART_2_STOP_BITS 0x04
static inline void
grub_serial_fill_defaults (struct grub_serial_port *port)
{
/* Set default settings. */
static inline grub_err_t
grub_serial_config_defaults (struct grub_serial_port *port)
{
return port->driver->configure (port,
#ifdef GRUB_MACHINE_MIPS_YEELOONG
port->speed = 115200;
115200,
#else
port->speed = 9600;
9600,
#endif
port->word_len = UART_8BITS_WORD;
port->parity = UART_NO_PARITY;
port->stop_bits = UART_1_STOP_BIT;
UART_8BITS_WORD, UART_NO_PARITY,
UART_1_STOP_BIT);
}
void grub_ns8250_init (void);