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-rw-r--r--include/linux/serial_8250.h32
1 files changed, 30 insertions, 2 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index f41dcc949218..c174c90fb3fb 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -65,8 +65,36 @@ enum {
65 * platform device. Using these will make your driver 65 * platform device. Using these will make your driver
66 * dependent on the 8250 driver. 66 * dependent on the 8250 driver.
67 */ 67 */
68struct uart_port; 68
69struct uart_8250_port; 69struct uart_8250_port {
70 struct uart_port port;
71 struct timer_list timer; /* "no irq" timer */
72 struct list_head list; /* ports on this IRQ */
73 unsigned short capabilities; /* port capabilities */
74 unsigned short bugs; /* port bugs */
75 unsigned int tx_loadsz; /* transmit fifo load size */
76 unsigned char acr;
77 unsigned char ier;
78 unsigned char lcr;
79 unsigned char mcr;
80 unsigned char mcr_mask; /* mask of user bits */
81 unsigned char mcr_force; /* mask of forced bits */
82 unsigned char cur_iotype; /* Running I/O type */
83
84 /*
85 * Some bits in registers are cleared on a read, so they must
86 * be saved whenever the register is read but the bits will not
87 * be immediately processed.
88 */
89#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
90 unsigned char lsr_saved_flags;
91#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
92 unsigned char msr_saved_flags;
93
94 /* 8250 specific callbacks */
95 int (*dl_read)(struct uart_8250_port *);
96 void (*dl_write)(struct uart_8250_port *, int);
97};
70 98
71int serial8250_register_8250_port(struct uart_8250_port *); 99int serial8250_register_8250_port(struct uart_8250_port *);
72void serial8250_unregister_port(int line); 100void serial8250_unregister_port(int line);