/*
* serial.h: Arch-dep definitions for the Etrax100 serial driver.
*
- * Copyright (C) 1998, 1999, 2000 Axis Communications AB
+ * Copyright (C) 1998-2007 Axis Communications AB
*/
#ifndef _ETRAX_SERIAL_H
#include <linux/circ_buf.h>
#include <asm/termios.h>
+#include <asm/dma.h>
+#include <asm/arch/io_interface_mux.h>
/* Software state per channel */
};
struct e100_serial {
- int baud;
- volatile u8 *port; /* R_SERIALx_CTRL */
- u32 irq; /* bitnr in R_IRQ_MASK2 for dmaX_descr */
+ struct tty_port port;
+ int baud;
+ volatile u8 *ioport; /* R_SERIALx_CTRL */
+ u32 irq; /* bitnr in R_IRQ_MASK2 for dmaX_descr */
/* Output registers */
- volatile u8 *oclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
- volatile u32 *ofirstadr; /* adr to R_DMA_CHx_FIRST */
- volatile u8 *ocmdadr; /* adr to R_DMA_CHx_CMD */
- const volatile u8 *ostatusadr; /* adr to R_DMA_CHx_STATUS */
+ volatile u8 *oclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+ volatile u32 *ofirstadr; /* adr to R_DMA_CHx_FIRST */
+ volatile u8 *ocmdadr; /* adr to R_DMA_CHx_CMD */
+ const volatile u8 *ostatusadr; /* adr to R_DMA_CHx_STATUS */
/* Input registers */
- volatile u8 *iclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
- volatile u32 *ifirstadr; /* adr to R_DMA_CHx_FIRST */
- volatile u8 *icmdadr; /* adr to R_DMA_CHx_CMD */
- volatile u32 *idescradr; /* adr to R_DMA_CHx_DESCR */
+ volatile u8 *iclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+ volatile u32 *ifirstadr; /* adr to R_DMA_CHx_FIRST */
+ volatile u8 *icmdadr; /* adr to R_DMA_CHx_CMD */
+ volatile u32 *idescradr; /* adr to R_DMA_CHx_DESCR */
- int flags; /* defined in tty.h */
+ int flags; /* defined in tty.h */
- u8 rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
- u8 tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
- u8 iseteop; /* bit number for R_SET_EOP for the input dma */
- int enabled; /* Set to 1 if the port is enabled in HW config */
+ u8 rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
+ u8 tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
+ u8 iseteop; /* bit number for R_SET_EOP for the input dma */
+ int enabled; /* Set to 1 if the port is enabled in HW config */
- u8 dma_out_enabled:1; /* Set to 1 if DMA should be used */
- u8 dma_in_enabled:1; /* Set to 1 if DMA should be used */
+ u8 dma_out_enabled; /* Set to 1 if DMA should be used */
+ u8 dma_in_enabled; /* Set to 1 if DMA should be used */
/* end of fields defined in rs_table[] in .c-file */
+ int dma_owner;
+ unsigned int dma_in_nbr;
+ unsigned int dma_out_nbr;
+ unsigned int dma_in_irq_nbr;
+ unsigned int dma_out_irq_nbr;
+ unsigned long dma_in_irq_flags;
+ unsigned long dma_out_irq_flags;
+ char *dma_in_irq_description;
+ char *dma_out_irq_description;
+
+ enum cris_io_interface io_if;
+ char *io_if_description;
+
u8 uses_dma_in; /* Set to 1 if DMA is used */
u8 uses_dma_out; /* Set to 1 if DMA is used */
u8 forced_eop; /* a fifo eop has been forced */
struct async_icount icount; /* error-statistics etc.*/
struct ktermios normal_termios;
struct ktermios callout_termios;
-#ifdef DECLARE_WAITQUEUE
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
-#else
- struct wait_queue *open_wait;
- struct wait_queue *close_wait;
-#endif
- unsigned long char_time_usec; /* The time for 1 char, in usecs */
- unsigned long flush_time_usec; /* How often we should flush */
- unsigned long last_tx_active_usec; /* Last tx usec in the jiffies */
- unsigned long last_tx_active; /* Last tx time in jiffies */
- unsigned long last_rx_active_usec; /* Last rx usec in the jiffies */
- unsigned long last_rx_active; /* Last rx time in jiffies */
+ unsigned long char_time_usec; /* The time for 1 char, in usecs */
+ unsigned long flush_time_usec; /* How often we should flush */
+ unsigned long last_tx_active_usec; /* Last tx usec in the jiffies */
+ unsigned long last_tx_active; /* Last tx time in jiffies */
+ unsigned long last_rx_active_usec; /* Last rx usec in the jiffies */
+ unsigned long last_rx_active; /* Last rx time in jiffies */
- int break_detected_cnt;
- int errorcode;
+ int break_detected_cnt;
+ int errorcode;
#ifdef CONFIG_ETRAX_RS485
struct rs485_control rs485; /* RS-485 support */