drivers/tty/synclink_gt.c

212 struct slgt_info {  struct
216 	struct slgt_info *next_device;	/* device list link */  argument
228 	struct slgt_info *port_array[SLGT_MAX_PORTS];  argument
230 	int			line;		/* tty line instance number */
232 	struct mgsl_icount	icount;
234 	int			timeout;
235 	int			x_char;		/* xon/xoff character */
236 	unsigned int		read_status_mask;
237 	unsigned int 		ignore_status_mask;
239 	wait_queue_head_t	status_event_wait_q;
240 	wait_queue_head_t	event_wait_q;
241 	struct timer_list	tx_timer;
242 	struct timer_list	rx_timer;
244 	unsigned int            gpio_present;
245 	struct cond_wait        *gpio_wait_q;
247 	spinlock_t lock;	/* spinlock for synchronizing with ISR */
249 	struct work_struct task;
250 	u32 pending_bh;
251 	bool bh_requested;
252 	bool bh_running;
254 	int isr_overflow;
255 	bool irq_requested;	/* true if IRQ requested */
256 	bool irq_occurred;	/* for diagnostics use */
260 	unsigned int bus_type;
261 	unsigned int irq_level;
262 	unsigned long irq_flags;
264 	unsigned char __iomem * reg_addr;  /* memory mapped registers address */
265 	u32 phys_reg_addr;
266 	bool reg_addr_requested;
268 	MGSL_PARAMS params;       /* communications parameters */
269 	u32 idle_mode;
270 	u32 max_frame_size;       /* as set by device config */
272 	unsigned int rbuf_fill_level;
273 	unsigned int rx_pio;
274 	unsigned int if_mode;
275 	unsigned int base_clock;
276 	unsigned int xsync;
277 	unsigned int xctrl;
281 	bool rx_enabled;
282 	bool rx_restart;
284 	bool tx_enabled;
285 	bool tx_active;
287 	unsigned char signals;    /* serial signal states */
288 	int init_error;  /* initialization error */
290 	unsigned char *tx_buf;
291 	int tx_count;
293 	char *flag_buf;
294 	bool drop_rts_on_tx_done;
295 	struct	_input_signal_events	input_signal_events;
297 	int dcd_chkcount;	/* check counts to prevent */
298 	int cts_chkcount;	/* too many IRQs if a signal */
299 	int dsr_chkcount;	/* is floating */
300 	int ri_chkcount;
302 	char *bufs;		/* virtual address of DMA buffer lists */
303 	dma_addr_t bufs_dma_addr; /* physical address of buffer descriptors */
305 	unsigned int rbuf_count;
306 	struct slgt_desc *rbufs;
307 	unsigned int rbuf_current;
308 	unsigned int rbuf_index;
309 	unsigned int rbuf_fill_index;
310 	unsigned short rbuf_fill_count;
312 	unsigned int tbuf_count;
313 	struct slgt_desc *tbufs;
314 	unsigned int tbuf_current;
315 	unsigned int tbuf_start;
317 	unsigned char *tmp_rbuf;
318 	unsigned int tmp_rbuf_count;
322 	int netcount;
323 	spinlock_t netlock;
325 	struct net_device *netdev;