diff options
Diffstat (limited to 'drivers/staging/dgnc/dgnc_driver.h')
| -rw-r--r-- | drivers/staging/dgnc/dgnc_driver.h | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h deleted file mode 100644 index b4d9f714c60a..000000000000 --- a/drivers/staging/dgnc/dgnc_driver.h +++ /dev/null @@ -1,345 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - */ - -#ifndef _DGNC_DRIVER_H -#define _DGNC_DRIVER_H - -#include <linux/types.h> -#include <linux/tty.h> -#include <linux/interrupt.h> - -#include "digi.h" /* Digi specific ioctl header */ - -/* Driver identification and error statements */ -#define PROCSTR "dgnc" /* /proc entries */ -#define DEVSTR "/dev/dg/dgnc" /* /dev entries */ -#define DRVSTR "dgnc" /* Driver name string */ -#define DG_PART "40002369_F" /* RPM part number */ - -#define TRC_TO_CONSOLE 1 - -/* Number of boards we support at once. */ -#define MAXBOARDS 20 -#define MAXPORTS 8 -#define MAXTTYNAMELEN 200 - -/* Serial port types */ -#define DGNC_SERIAL 0 -#define DGNC_PRINT 1 - -#define SERIAL_TYPE_NORMAL 1 - -#define PORT_NUM(dev) ((dev) & 0x7f) -#define IS_PRINT(dev) (((dev) & 0xff) >= 0x80) - -/* MAX number of stop characters sent when our read queue is getting full */ -#define MAX_STOPS_SENT 5 - -/* 4 extra for alignment play space */ -#define WRITEBUFLEN ((4096) + 4) - -#define dgnc_jiffies_from_ms(a) (((a) * HZ) / 1000) - -#ifndef _POSIX_VDISABLE -#define _POSIX_VDISABLE '\0' -#endif - -/* All the possible states the driver can be while being loaded. */ -enum { - DRIVER_INITIALIZED = 0, - DRIVER_READY -}; - -/* All the possible states the board can be while booting up. */ -enum { - BOARD_FAILED = 0, - BOARD_FOUND, - BOARD_READY -}; - -struct dgnc_board; -struct channel_t; - -/** - * struct board_ops - Per board operations. - */ -struct board_ops { - void (*tasklet)(unsigned long data); - irqreturn_t (*intr)(int irq, void *voidbrd); - void (*uart_init)(struct channel_t *ch); - void (*uart_off)(struct channel_t *ch); - int (*drain)(struct tty_struct *tty, uint seconds); - void (*param)(struct tty_struct *tty); - void (*assert_modem_signals)(struct channel_t *ch); - void (*flush_uart_write)(struct channel_t *ch); - void (*flush_uart_read)(struct channel_t *ch); - void (*disable_receiver)(struct channel_t *ch); - void (*enable_receiver)(struct channel_t *ch); - void (*send_break)(struct channel_t *ch, int msec); - void (*send_start_character)(struct channel_t *ch); - void (*send_stop_character)(struct channel_t *ch); - void (*copy_data_from_queue_to_uart)(struct channel_t *ch); - uint (*get_uart_bytes_left)(struct channel_t *ch); - void (*send_immediate_char)(struct channel_t *ch, unsigned char c); -}; - -/** - * struct dgnc_board - Per board information. - * @boardnum: Board number (0 - 32). - * - * @name: Product name. - * @pdev: Pointer to the pci_dev structure. - * @device: PCI device ID. - * @maxports: Maximum ports this board can handle. - * @bd_lock: Used to protect board. - * @bd_intr_lock: Protect poller tasklet and interrupt routine from each other. - * @state: State of the card. - * @state_wait: Queue to sleep on for state change. - * @helper_tasklet: Poll helper tasklet. - * @nasync: Number of ports on card. - * @irq: Interrupt request number. - * @membase: Start of base memory of the card. - * @membase_end: End of base memory of the card. - * @iobase: Start of IO base of the card. - * @iobase_end: End of IO base of the card. - * @bd_uart_offset: Space between each UART. - * @channels: array of pointers to our channels. - * @serial_driver: Pointer to the serial driver. - * @serial_name: Serial driver name. - * @print_dirver: Pointer to the print driver. - * @print_name: Print driver name. - * @bd_dividend: Board/UART's specific dividend. - * @bd_ops: Pointer to board operations structure. - */ -struct dgnc_board { - int boardnum; - char *name; - struct pci_dev *pdev; - u16 device; - uint maxports; - - /* used to protect the board */ - spinlock_t bd_lock; - - /* Protect poller tasklet and interrupt routine from each other. */ - spinlock_t bd_intr_lock; - - uint state; - wait_queue_head_t state_wait; - - struct tasklet_struct helper_tasklet; - - uint nasync; - - uint irq; - - ulong membase; - ulong membase_end; - - u8 __iomem *re_map_membase; - - ulong iobase; - ulong iobase_end; - - uint bd_uart_offset; - - struct channel_t *channels[MAXPORTS]; - - struct tty_driver *serial_driver; - char serial_name[200]; - struct tty_driver *print_driver; - char print_name[200]; - - uint bd_dividend; - - struct board_ops *bd_ops; -}; - -/* Unit flag definitions for un_flags. */ -#define UN_ISOPEN 0x0001 /* Device is open */ -#define UN_CLOSING 0x0002 /* Line is being closed */ -#define UN_IMM 0x0004 /* Service immediately */ -#define UN_BUSY 0x0008 /* Some work this channel */ -#define UN_BREAKI 0x0010 /* Input break received */ -#define UN_PWAIT 0x0020 /* Printer waiting for terminal */ -#define UN_TIME 0x0040 /* Waiting on time */ -#define UN_EMPTY 0x0080 /* Waiting output queue empty */ -#define UN_LOW 0x0100 /* Waiting output low water mark*/ -#define UN_EXCL_OPEN 0x0200 /* Open for exclusive use */ -#define UN_WOPEN 0x0400 /* Device waiting for open */ -#define UN_WIOCTL 0x0800 /* Device waiting for open */ -#define UN_HANGUP 0x8000 /* Carrier lost */ - -struct device; - -/** - * struct un_t - terminal or printer unit - * @un_open_count: Counter of opens to port. - * @un_tty: Pointer to unit tty structure. - * @un_flags: Unit flags. - * @un_flags_wait: Place to sleep to wait on unit. - * @un_dev: Minor device number. - */ -struct un_t { - struct channel_t *un_ch; - uint un_type; - uint un_open_count; - struct tty_struct *un_tty; - uint un_flags; - wait_queue_head_t un_flags_wait; - uint un_dev; - struct device *un_sysfs; -}; - -/* Device flag definitions for ch_flags. */ -#define CH_PRON 0x0001 /* Printer on string */ -#define CH_STOP 0x0002 /* Output is stopped */ -#define CH_STOPI 0x0004 /* Input is stopped */ -#define CH_CD 0x0008 /* Carrier is present */ -#define CH_FCAR 0x0010 /* Carrier forced on */ -#define CH_HANGUP 0x0020 /* Hangup received */ - -#define CH_RECEIVER_OFF 0x0040 /* Receiver is off */ -#define CH_OPENING 0x0080 /* Port in fragile open state */ -#define CH_CLOSING 0x0100 /* Port in fragile close state */ -#define CH_FIFO_ENABLED 0x0200 /* Port has FIFOs enabled */ -#define CH_TX_FIFO_EMPTY 0x0400 /* TX Fifo is completely empty */ -#define CH_TX_FIFO_LWM 0x0800 /* TX Fifo is below Low Water */ -#define CH_BREAK_SENDING 0x1000 /* Break is being sent */ -#define CH_LOOPBACK 0x2000 /* Channel is in lookback mode */ -#define CH_BAUD0 0x08000 /* Used for checking B0 transitions */ -#define CH_FORCED_STOP 0x20000 /* Output is forcibly stopped */ -#define CH_FORCED_STOPI 0x40000 /* Input is forcibly stopped */ - -/* Our Read/Error/Write queue sizes */ -#define RQUEUEMASK 0x1FFF /* 8 K - 1 */ -#define EQUEUEMASK 0x1FFF /* 8 K - 1 */ -#define WQUEUEMASK 0x0FFF /* 4 K - 1 */ -#define RQUEUESIZE (RQUEUEMASK + 1) -#define EQUEUESIZE RQUEUESIZE -#define WQUEUESIZE (WQUEUEMASK + 1) - -/** - * struct channel_t - Channel information. - * @dgnc_board: Pointer to board structure. - * @ch_bd: Transparent print structure. - * @ch_tun: Terminal unit information. - * @ch_pun: Printer unit information. - * @ch_lock: Provide for serialization. - * @ch_flags_wait: Channel flags wait queue. - * @ch_portnum: Port number, 0 offset. - * @ch_open_count: Open count. - * @ch_flags: Channel flags. - * @ch_close_delay: How long we should drop RTS/DTR for. - * @ch_cpstime: Time for CPS calculations. - * @ch_c_iflag: Channel iflags. - * @ch_c_cflag: Channel cflags. - * @ch_c_oflag: Channel oflags. - * @ch_c_lflag: Channel lflags. - * @ch_stopc: Stop character. - * @ch_startc: Start character. - * @ch_old_baud: Cache of the current baud rate. - * @ch_custom_speed: Custom baud rate, if set. - * @ch_wopen: Waiting for open process count. - * @ch_mostat: FEP output modem status. - * @ch_mistat: FEP input modem status. - * @ch_cls_uart: Pointer to the mapped cls UART struct - * @ch_cached_lsr: Cached value of the LSR register. - * @ch_rqueue: Read queue buffer, malloc'ed. - * @ch_r_head: Head location of the read queue. - * @ch_r_tail: Tail location of the read queue. - * @ch_equeue: Error queue buffer, malloc'ed. - * @ch_e_head: Head location of the error queue. - * @ch_e_tail: Tail location of the error queue. - * @ch_wqueue: Write queue buffer, malloc'ed. - * @ch_w_head: Head location of the write queue. - * @ch_w_tail: Tail location of the write queue. - * @ch_rxcount: Total of data received so far. - * @ch_txcount: Total of data transmitted so far. - * @ch_r_tlevel: Receive trigger level. - * @ch_t_tlevel: Transmit trigger level. - * @ch_r_watermark: Receive water mark. - * @ch_stop_sending_break: Time we should STOP sending a break. - * @ch_stops_sent: How many times I have send a stop character to try - * to stop the other guy sending. - * @ch_err_parity: Count of parity - * @ch_err_frame: Count of framing errors on channel. - * @ch_err_break: Count of breaks on channel. - * @ch_err_overrun: Count of overruns on channel. - * @ch_xon_sends: Count of xons transmitted. - * @ch_xoff_sends: Count of xoffs transmitted. - */ -struct channel_t { - struct dgnc_board *ch_bd; - struct digi_t ch_digi; - struct un_t ch_tun; - struct un_t ch_pun; - - spinlock_t ch_lock; /* provide for serialization */ - wait_queue_head_t ch_flags_wait; - - uint ch_portnum; - uint ch_open_count; - uint ch_flags; - - ulong ch_close_delay; - - ulong ch_cpstime; - - tcflag_t ch_c_iflag; - tcflag_t ch_c_cflag; - tcflag_t ch_c_oflag; - tcflag_t ch_c_lflag; - unsigned char ch_stopc; - unsigned char ch_startc; - - uint ch_old_baud; - uint ch_custom_speed; - - uint ch_wopen; - - unsigned char ch_mostat; - unsigned char ch_mistat; - - struct cls_uart_struct __iomem *ch_cls_uart; - - unsigned char ch_cached_lsr; - - unsigned char *ch_rqueue; - ushort ch_r_head; - ushort ch_r_tail; - - unsigned char *ch_equeue; - ushort ch_e_head; - ushort ch_e_tail; - - unsigned char *ch_wqueue; - ushort ch_w_head; - ushort ch_w_tail; - - ulong ch_rxcount; - ulong ch_txcount; - - unsigned char ch_r_tlevel; - unsigned char ch_t_tlevel; - - unsigned char ch_r_watermark; - - ulong ch_stop_sending_break; - uint ch_stops_sent; - - ulong ch_err_parity; - ulong ch_err_frame; - ulong ch_err_break; - ulong ch_err_overrun; - - ulong ch_xon_sends; - ulong ch_xoff_sends; -}; - -extern struct dgnc_board *dgnc_board[MAXBOARDS];/* Array of boards */ - -#endif /* _DGNC_DRIVER_H */ |