mirror of
https://github.com/sjlongland/adv950.git
synced 2025-09-13 10:43:14 +10:00
Stuart Longland
98f879a253
This is a check-in of the Advantech ADV950 serial driver, used with the UNO-1150 series of industrial computers, as sourced from: http://support.advantech.com/support/DownloadSRDetail_New.aspx?SR_ID=1-GLBRCD&Doc_Source=Download This builds with kernel 3.0.1, but does not build with contemporary kernels (i.e. ones that are still in support). I suspect this is a hacked up version of Russel King's 8250 serial driver from 2001. First step, let's get it building against the current kernel (v4.10.1) and then we'll look at integrating this into 8250 proper.
123 lines
2.9 KiB
C
123 lines
2.9 KiB
C
/*
|
|
* linux/drivers/char/8250.h
|
|
*
|
|
* Driver for 8250/16550-type serial ports
|
|
*
|
|
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
|
|
*
|
|
* Copyright (C) 2001 Russell King.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* $Id: 8250.h,v 1.8 2002/07/21 21:32:30 rmk Exp $
|
|
*/
|
|
|
|
//lipeng add at 2006/06/08
|
|
#include <linux/version.h>
|
|
|
|
#ifndef KERNEL_VERSION
|
|
#define KERNEL_VERSION(a,b,c) ((a)*65536+(b)*256+(c))
|
|
#endif
|
|
//lipeng add end
|
|
|
|
//lipeng modify at 2007/09/07
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)
|
|
#include <linux/config.h>
|
|
#endif
|
|
//lipeng modify end
|
|
|
|
//jinxin added to support DMA
|
|
#include <linux/pci.h>
|
|
#define TX_BUF_TOT_LEN 128
|
|
#define RX_BUF_TOT_LEN 128
|
|
|
|
#ifndef MIN
|
|
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
|
#endif
|
|
|
|
//DMA registers
|
|
#define DMAADL (0x100 + 0x00) //DMA Address Low
|
|
#define DMAADH (0x100 + 0x04) //DMA Address High
|
|
#define DMATL (0x100 + 0x08) //DMA Transfer Length
|
|
#define DMASTA (0x100 + 0x0c) //DMA Status
|
|
|
|
//DMA Status
|
|
#define DMAREAD (1UL << 31)
|
|
#define DMAACT (1UL << 0)
|
|
#define DMAERR (1UL << 1)
|
|
#define DMADONE (1UL << 2)
|
|
//jinxin added to support dtrdsr flow control
|
|
#ifndef CDTRDSR
|
|
#define CDTRDSR 004000000000 /* DTR/DSR flow control */
|
|
#endif
|
|
|
|
//jinxin added end
|
|
void adv_serial8250_get_irq_map(unsigned int *map);
|
|
void adv_serial8250_suspend_port(int line);
|
|
void adv_serial8250_resume_port(int line);
|
|
|
|
struct uart_8250_port {
|
|
struct uart_port port;
|
|
struct timer_list timer; /* "no irq" timer */
|
|
struct list_head list; /* ports on this IRQ */
|
|
unsigned int capabilities; /* port capabilities */
|
|
unsigned short rev;
|
|
unsigned char acr;
|
|
unsigned char ier;
|
|
unsigned char lcr;
|
|
unsigned char mcr;
|
|
unsigned char mcr_mask; /* mask of user bits */
|
|
unsigned char mcr_force; /* mask of forced bits */
|
|
unsigned char lsr_break_flag;
|
|
//jinxin added to support DMA
|
|
dma_addr_t rx_ring_dma;
|
|
dma_addr_t tx_ring_dma;
|
|
unsigned char *rx_ring;
|
|
unsigned char *tx_ring;
|
|
|
|
|
|
/*
|
|
* We provide a per-port pm hook.
|
|
*/
|
|
void (*pm)(struct uart_port *port,
|
|
unsigned int state, unsigned int old);
|
|
};
|
|
|
|
struct old_serial_port {
|
|
unsigned int uart;
|
|
unsigned int baud_base;
|
|
unsigned int port;
|
|
unsigned int irq;
|
|
unsigned int flags;
|
|
unsigned char hub6;
|
|
unsigned char io_type;
|
|
unsigned char *iomem_base;
|
|
unsigned short iomem_reg_shift;
|
|
};
|
|
|
|
#undef SERIAL_DEBUG_PCI
|
|
|
|
#if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
|
|
#define SERIAL_INLINE
|
|
#endif
|
|
|
|
#ifdef SERIAL_INLINE
|
|
#define _INLINE_ inline
|
|
#else
|
|
#define _INLINE_
|
|
#endif
|
|
|
|
#define PROBE_RSA (1 << 0)
|
|
#define PROBE_ANY (~0)
|
|
|
|
#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
|
|
|
|
#ifdef CONFIG_SERIAL_8250_SHARE_IRQ
|
|
#define SERIAL8250_SHARE_IRQS 1
|
|
#else
|
|
#define SERIAL8250_SHARE_IRQS 0
|
|
#endif
|