#define ESP_STAT_NEVER_DMA 0x08
#define ESP_STAT_USE_PIO 0x10
-#define ESP_EVENT_WRITE_WAKEUP 0
#define ESP_MAGIC 0x53ee
#define ESP_XMIT_SIZE 4096
struct esp_struct {
int magic;
+ struct tty_port port;
spinlock_t lock;
- int port;
+ int io_port;
int irq;
- int flags; /* defined in tty.h */
- struct tty_struct *tty;
int read_status_mask;
int ignore_status_mask;
int timeout;
unsigned short closing_wait2;
int IER; /* Interrupt Enable Register */
int MCR; /* Modem control register */
- unsigned long event;
unsigned long last_active;
int line;
- int count; /* # of fd on device */
- int blocked_open; /* # of blocked opens */
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
- struct work_struct tqueue;
- struct work_struct tqueue_hangup;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
wait_queue_head_t delta_msr_wait;
wait_queue_head_t break_wait;
struct async_icount icount; /* kernel counters for the 4 input interrupts */