diff options
Diffstat (limited to 'include/linux/hayesesp.h')
| -rw-r--r-- | include/linux/hayesesp.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/include/linux/hayesesp.h b/include/linux/hayesesp.h new file mode 100644 index 00000000000..b436be7a7ff --- /dev/null +++ b/include/linux/hayesesp.h @@ -0,0 +1,124 @@ +#ifndef HAYESESP_H +#define HAYESESP_H + +struct hayes_esp_config { + short flow_on; + short flow_off; + short rx_trigger; + short tx_trigger; + short pio_threshold; + unsigned char rx_timeout; + char dma_channel; +}; + +#ifdef __KERNEL__ + +#define ESP_DMA_CHANNEL 0 +#define ESP_RX_TRIGGER 768 +#define ESP_TX_TRIGGER 768 +#define ESP_FLOW_OFF 1016 +#define ESP_FLOW_ON 944 +#define ESP_RX_TMOUT 128 +#define ESP_PIO_THRESHOLD 32 + +#define ESP_IN_MAJOR 57 /* major dev # for dial in */ +#define ESP_OUT_MAJOR 58 /* major dev # for dial out */ +#define ESPC_SCALE 3 +#define UART_ESI_BASE 0x00 +#define UART_ESI_SID 0x01 +#define UART_ESI_RX 0x02 +#define UART_ESI_TX 0x02 +#define UART_ESI_CMD1 0x04 +#define UART_ESI_CMD2 0x05 +#define UART_ESI_STAT1 0x04 +#define UART_ESI_STAT2 0x05 +#define UART_ESI_RWS 0x07 + +#define UART_IER_DMA_TMOUT 0x80 +#define UART_IER_DMA_TC 0x08 + +#define ESI_SET_IRQ 0x04 +#define ESI_SET_DMA_TMOUT 0x05 +#define ESI_SET_SRV_MASK 0x06 +#define ESI_SET_ERR_MASK 0x07 +#define ESI_SET_FLOW_CNTL 0x08 +#define ESI_SET_FLOW_CHARS 0x09 +#define ESI_SET_FLOW_LVL 0x0a +#define ESI_SET_TRIGGER 0x0b +#define ESI_SET_RX_TIMEOUT 0x0c +#define ESI_SET_FLOW_TMOUT 0x0d +#define ESI_WRITE_UART 0x0e +#define ESI_READ_UART 0x0f +#define ESI_SET_MODE 0x10 +#define ESI_GET_ERR_STAT 0x12 +#define ESI_GET_UART_STAT 0x13 +#define ESI_GET_RX_AVAIL 0x14 +#define ESI_GET_TX_AVAIL 0x15 +#define ESI_START_DMA_RX 0x16 +#define ESI_START_DMA_TX 0x17 +#define ESI_ISSUE_BREAK 0x1a +#define ESI_FLUSH_RX 0x1b +#define ESI_FLUSH_TX 0x1c +#define ESI_SET_BAUD 0x1d +#define ESI_SET_ENH_IRQ 0x1f +#define ESI_SET_REINTR 0x20 +#define ESI_SET_PRESCALAR 0x23 +#define ESI_NO_COMMAND 0xff + +#define ESP_STAT_RX_TIMEOUT 0x01 +#define ESP_STAT_DMA_RX 0x02 +#define ESP_STAT_DMA_TX 0x04 +#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; + spinlock_t lock; + int port; + int irq; + int flags; /* defined in tty.h */ + struct tty_struct *tty; + int read_status_mask; + int ignore_status_mask; + int timeout; + int stat_flags; + int custom_divisor; + int close_delay; + unsigned short closing_wait; + 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 */ + struct hayes_esp_config config; /* port configuration */ + struct esp_struct *next_port; /* For the linked list */ +}; + +struct esp_pio_buffer { + unsigned char data[1024]; + struct esp_pio_buffer *next; +}; + +#endif /* __KERNEL__ */ + + +#endif /* ESP_H */ + |