include/linux/hayesesp.h

   1 #ifndef HAYESESP_H
   2 #define HAYESESP_H
   3
   4 struct hayes_esp_config {
   5         short flow_on;
   6         short flow_off;
   7         short rx_trigger;
   8         short tx_trigger;
   9         short pio_threshold;
  10         unsigned char rx_timeout;
  11         char dma_channel;
  12 };
  13
  14 #ifdef __KERNEL__
  15
  16 #define ESP_DMA_CHANNEL   0
  17 #define ESP_RX_TRIGGER    768
  18 #define ESP_TX_TRIGGER    768
  19 #define ESP_FLOW_OFF      1016
  20 #define ESP_FLOW_ON       944
  21 #define ESP_RX_TMOUT      128
  22 #define ESP_PIO_THRESHOLD 32
  23
  24 #define ESP_IN_MAJOR    57      /* major dev # for dial in */
  25 #define ESP_OUT_MAJOR   58      /* major dev # for dial out */
  26 #define ESPC_SCALE      3
  27 #define UART_ESI_BASE   0x00
  28 #define UART_ESI_SID    0x01
  29 #define UART_ESI_RX     0x02
  30 #define UART_ESI_TX     0x02
  31 #define UART_ESI_CMD1   0x04
  32 #define UART_ESI_CMD2   0x05
  33 #define UART_ESI_STAT1  0x04
  34 #define UART_ESI_STAT2  0x05
  35 #define UART_ESI_RWS    0x07
  36
  37 #define UART_IER_DMA_TMOUT      0x80
  38 #define UART_IER_DMA_TC         0x08
  39
  40 #define ESI_SET_IRQ             0x04
  41 #define ESI_SET_DMA_TMOUT       0x05
  42 #define ESI_SET_SRV_MASK        0x06
  43 #define ESI_SET_ERR_MASK        0x07
  44 #define ESI_SET_FLOW_CNTL       0x08
  45 #define ESI_SET_FLOW_CHARS      0x09
  46 #define ESI_SET_FLOW_LVL        0x0a
  47 #define ESI_SET_TRIGGER         0x0b
  48 #define ESI_SET_RX_TIMEOUT      0x0c
  49 #define ESI_SET_FLOW_TMOUT      0x0d
  50 #define ESI_WRITE_UART          0x0e
  51 #define ESI_READ_UART           0x0f
  52 #define ESI_SET_MODE            0x10
  53 #define ESI_GET_ERR_STAT        0x12
  54 #define ESI_GET_UART_STAT       0x13
  55 #define ESI_GET_RX_AVAIL        0x14
  56 #define ESI_GET_TX_AVAIL        0x15
  57 #define ESI_START_DMA_RX        0x16
  58 #define ESI_START_DMA_TX        0x17
  59 #define ESI_ISSUE_BREAK         0x1a
  60 #define ESI_FLUSH_RX            0x1b
  61 #define ESI_FLUSH_TX            0x1c
  62 #define ESI_SET_BAUD            0x1d
  63 #define ESI_SET_ENH_IRQ         0x1f
  64 #define ESI_SET_REINTR          0x20
  65 #define ESI_SET_PRESCALAR       0x23
  66 #define ESI_NO_COMMAND          0xff
  67
  68 #define ESP_STAT_RX_TIMEOUT     0x01
  69 #define ESP_STAT_DMA_RX         0x02
  70 #define ESP_STAT_DMA_TX         0x04
  71 #define ESP_STAT_NEVER_DMA      0x08
  72 #define ESP_STAT_USE_PIO        0x10
  73
  74 #define ESP_EVENT_WRITE_WAKEUP  0
  75 #define ESP_MAGIC               0x53ee
  76 #define ESP_XMIT_SIZE           4096
  77
  78 struct esp_struct {
  79         int                     magic;
  80         spinlock_t              lock;
  81         int                     port;
  82         int                     irq;
  83         int                     flags;          /* defined in tty.h */
  84         struct tty_struct       *tty;
  85         int                     read_status_mask;
  86         int                     ignore_status_mask;
  87         int                     timeout;
  88         int                     stat_flags;
  89         int                     custom_divisor;
  90         int                     close_delay;
  91         unsigned short          closing_wait;
  92         unsigned short          closing_wait2;
  93         int                     IER;    /* Interrupt Enable Register */
  94         int                     MCR;    /* Modem control register */
  95         unsigned long           event;
  96         unsigned long           last_active;
  97         int                     line;
  98         int                     count;      /* # of fd on device */
  99         int                     blocked_open; /* # of blocked opens */
 100         unsigned char           *xmit_buf;
 101         int                     xmit_head;
 102         int                     xmit_tail;
 103         int                     xmit_cnt;
 104         struct work_struct      tqueue;
 105         struct work_struct      tqueue_hangup;
 106         wait_queue_head_t       open_wait;
 107         wait_queue_head_t       close_wait;
 108         wait_queue_head_t       delta_msr_wait;
 109         wait_queue_head_t       break_wait;
 110         struct async_icount     icount; /* kernel counters for the 4 input interrupts */
 111         struct hayes_esp_config config; /* port configuration */
 112         struct esp_struct       *next_port; /* For the linked list */
 113 };
 114
 115 struct esp_pio_buffer {
 116         unsigned char data[1024];
 117         struct esp_pio_buffer *next;
 118 };
 119
 120 #endif /* __KERNEL__ */
 121
 122
 123 #endif /* ESP_H */
 124