smc37c669.c

该文件是rt_linux

	unsigned test2 : 1;	    /* Reserved - set to 0	    */
	unsigned test3 : 1;	    /* Reserved - set t0 0	    */
	unsigned test4 : 1;	    /* Reserved - set to 0	    */
	unsigned test5 : 1;	    /* Reserved - set t0 0	    */
	unsigned test6 : 1;	    /* Reserved - set t0 0	    */
	unsigned test7 : 1;	    /* Reserved - set to 0	    */
    }	by_field;
} SMC37c669_CR0F;

/*
** CR10 - default value 0x00
*/
typedef union _SMC37c669_CR10 {
    unsigned char as_uchar;
    struct {
    	unsigned reserved1 : 3;	     /* RAZ			    */
	unsigned pll_gain : 1;	     /* 1 = 3V, 2 = 5V operation    */
	unsigned pll_stop : 1;	     /* 1 = stop PLLs		    */
	unsigned ace_stop : 1;	     /* 1 = stop UART clocks	    */
	unsigned pll_clock_ctrl : 1; /* 0 = 14.318 MHz, 1 = 24 MHz  */
	unsigned ir_test : 1;	     /* Enable IR test mode	    */
    }	by_field;
} SMC37c669_CR10;

/*
** CR11 - default value 0x00
*/
typedef union _SMC37c669_CR11 {
    unsigned char as_uchar;
    struct {
    	unsigned ir_loopback : 1;   /* Internal IR loop back		    */
	unsigned test_10ms : 1;	    /* Test 10ms autopowerdown FDC timeout  */
	unsigned reserved1 : 6;	    /* RAZ				    */
    }	by_field;
} SMC37c669_CR11;

/*
** CR12 - CR1D are reserved registers
*/

/*
** CR1E - default value 0x80
**
**  GAMECS:
**	00 - GAMECS disabled
**	01 - 1 byte decode ADR<3:0> = 0001b
**	10 - 8 byte block decode ADR<3:0> = 0XXXb
**	11 - 16 byte block decode ADR<3:0> = XXXXb
**
*/
typedef union _SMC37c66_CR1E {
    unsigned char as_uchar;
    struct {
    	unsigned gamecs_config: 2;   /* See note above		    */
	unsigned gamecs_addr9_4 : 6; /* GAMECS Addr<9:4>	    */
    }	by_field;
} SMC37c669_CR1E;

/*
** CR1F - default value 0x00
**
**  DT0 DT1 DRVDEN0 DRVDEN1 Drive Type
**  --- --- ------- ------- ----------
**   0   0  DENSEL  DRATE0  4/2/1 MB 3.5"
**                          2/1 MB 5.25"
**                          2/1.6/1 MB 3.5" (3-mode)
**   0   1  DRATE1  DRATE0
**   1   0  nDENSEL DRATE0  PS/2
**   1   1  DRATE0  DRATE1
**
**  Note: DENSEL, DRATE1, and DRATE0 map onto two output
**	  pins - DRVDEN0 and DRVDEN1.
**
*/
typedef union _SMC37c669_CR1F {
    unsigned char as_uchar;
    struct {
    	unsigned fdd0_drive_type : 2;	/* FDD0 drive type	    */
	unsigned fdd1_drive_type : 2;	/* FDD1 drive type	    */
	unsigned fdd2_drive_type : 2;	/* FDD2 drive type	    */
	unsigned fdd3_drive_type : 2;	/* FDD3 drive type	    */
    }	by_field;
} SMC37c669_CR1F;

/*
** CR20 - default value 0x3C
**
**  FDC Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0, A<3:0> = 0XXXb to access.
**
*/
typedef union _SMC37c669_CR20 {
    unsigned char as_uchar;
    struct {
    	unsigned zero : 2;	    /* 0			    */
	unsigned addr9_4 : 6;	    /* FDC Addr<9:4>		    */
    }	by_field;
} SMC37c669_CR20;

/*
** CR21 - default value 0x3C
**
**  IDE Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0, A<3:0> = 0XXXb to access.
**
*/
typedef union _SMC37c669_CR21 {
    unsigned char as_uchar;
    struct {
    	unsigned zero : 2;	    /* 0			    */
	unsigned addr9_4 : 6;	    /* IDE Addr<9:4>		    */
    }	by_field;
} SMC37c669_CR21;

/*
** CR22 - default value 0x3D
**
**  IDE Alternate Status Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0, A<3:0> = 0110b to access.
**
*/
typedef union _SMC37c669_CR22 {
    unsigned char as_uchar;
    struct {
    	unsigned zero : 2;	    /* 0			    */
	unsigned addr9_4 : 6;	    /* IDE Alt Status Addr<9:4>	    */
    }	by_field;
} SMC37c669_CR22;

/*
** CR23 - default value 0x00
**
**  Parallel Port Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0 to access.
**	- If EPP is enabled, A<2:0> = XXXb to access.
**	  If EPP is NOT enabled, A<1:0> = XXb to access
**
*/
typedef union _SMC37c669_CR23 {
    unsigned char as_uchar;
    struct {
	unsigned addr9_2 : 8;	    /* Parallel Port Addr<9:2>	    */
    }	by_field;
} SMC37c669_CR23;

/*
** CR24 - default value 0x00
**
**  UART1 Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0, A<2:0> = XXXb to access.
**
*/
typedef union _SMC37c669_CR24 {
    unsigned char as_uchar;
    struct {
    	unsigned zero : 1;	    /* 0			    */
	unsigned addr9_3 : 7;	    /* UART1 Addr<9:3>		    */
    }	by_field;
} SMC37c669_CR24;

/*
** CR25 - default value 0x00
**
**  UART2 Base Address Register
**	- To disable this decode set Addr<9:8> = 0
**	- A<10> = 0, A<2:0> = XXXb to access.
**
*/
typedef union _SMC37c669_CR25 {
    unsigned char as_uchar;
    struct {
    	unsigned zero : 1;	    /* 0			    */
	unsigned addr9_3 : 7;	    /* UART2 Addr<9:3>		    */
    }	by_field;
} SMC37c669_CR25;

/*
** CR26 - default value 0x00
**
**  Parallel Port / FDC DMA Select Register
**
**  D3 - D0	  DMA
**  D7 - D4	Selected
**  -------	--------
**   0000	 None
**   0001	 DMA_A
**   0010	 DMA_B
**   0011	 DMA_C
**
*/
typedef union _SMC37c669_CR26 {
    unsigned char as_uchar;
    struct {
    	unsigned ppt_drq : 4;	    /* See note above		    */
	unsigned fdc_drq : 4;	    /* See note above		    */
    }	by_field;
} SMC37c669_CR26;

/*
** CR27 - default value 0x00
**
**  Parallel Port / FDC IRQ Select Register
**
**  D3 - D0	  IRQ
**  D7 - D4	Selected
**  -------	--------
**   0000	 None
**   0001	 IRQ_A
**   0010	 IRQ_B
**   0011	 IRQ_C
**   0100	 IRQ_D
**   0101	 IRQ_E
**   0110	 IRQ_F
**   0111	 Reserved
**   1000	 IRQ_H
**
**  Any unselected IRQ REQ is in tristate
**
*/
typedef union _SMC37c669_CR27 {
    unsigned char as_uchar;
    struct {
    	unsigned ppt_irq : 4;	    /* See note above		    */
	unsigned fdc_irq : 4;	    /* See note above		    */
    }	by_field;
} SMC37c669_CR27;

/*
** CR28 - default value 0x00
**
**  UART IRQ Select Register
**
**  D3 - D0	  IRQ
**  D7 - D4	Selected
**  -------	--------
**   0000	 None
**   0001	 IRQ_A
**   0010	 IRQ_B
**   0011	 IRQ_C
**   0100	 IRQ_D
**   0101	 IRQ_E
**   0110	 IRQ_F
**   0111	 Reserved
**   1000	 IRQ_H
**   1111	 share with UART1 (only for UART2)
**
**  Any unselected IRQ REQ is in tristate
**
**  To share an IRQ between UART1 and UART2, set
**  UART1 to use the desired IRQ and set UART2 to
**  0xF to enable sharing mechanism.
**
*/
typedef union _SMC37c669_CR28 {
    unsigned char as_uchar;
    struct {
    	unsigned uart2_irq : 4;	    /* See note above		    */
	unsigned uart1_irq : 4;	    /* See note above		    */
    }	by_field;
} SMC37c669_CR28;

/*
** CR29 - default value 0x00
**
**  IRQIN IRQ Select Register
**
**  D3 - D0	  IRQ
**  D7 - D4	Selected
**  -------	--------
**   0000	 None
**   0001	 IRQ_A
**   0010	 IRQ_B
**   0011	 IRQ_C
**   0100	 IRQ_D
**   0101	 IRQ_E
**   0110	 IRQ_F
**   0111	 Reserved
**   1000	 IRQ_H
**
**  Any unselected IRQ REQ is in tristate
**
*/
typedef union _SMC37c669_CR29 {
    unsigned char as_uchar;
    struct {
    	unsigned irqin_irq : 4;	    /* See note above		    */
	unsigned reserved1 : 4;	    /* RAZ			    */
    }	by_field;
} SMC37c669_CR29;

/*
** Aliases of Configuration Register formats (should match
** the set of index aliases).
**
** Note that CR24 and CR25 have the same format and are the
** base address registers for UART1 and UART2.  Because of
** this we only define 1 alias here - for CR24 - as the serial
** base address register.
**
** Note that CR21 and CR22 have the same format and are the
** base address and alternate status address registers for
** the IDE controller.  Because of this we only define 1 alias
** here - for CR21 - as the IDE address register.
**
*/
typedef SMC37c669_CR0D SMC37c669_DEVICE_ID_REGISTER;
typedef SMC37c669_CR0E SMC37c669_DEVICE_REVISION_REGISTER;
typedef SMC37c669_CR20 SMC37c669_FDC_BASE_ADDRESS_REGISTER;
typedef SMC37c669_CR21 SMC37c669_IDE_ADDRESS_REGISTER;
typedef SMC37c669_CR23 SMC37c669_PARALLEL_BASE_ADDRESS_REGISTER;
typedef SMC37c669_CR24 SMC37c669_SERIAL_BASE_ADDRESS_REGISTER;
typedef SMC37c669_CR26 SMC37c669_PARALLEL_FDC_DRQ_REGISTER;
typedef SMC37c669_CR27 SMC37c669_PARALLEL_FDC_IRQ_REGISTER;
typedef SMC37c669_CR28 SMC37c669_SERIAL_IRQ_REGISTER;

/*
** ISA/Device IRQ Translation Table Entry Definition
*/
typedef struct _SMC37c669_IRQ_TRANSLATION_ENTRY {
    int device_irq;
    int isa_irq;
} SMC37c669_IRQ_TRANSLATION_ENTRY;

/*
** ISA/Device DMA Translation Table Entry Definition
*/
typedef struct _SMC37c669_DRQ_TRANSLATION_ENTRY {
    int device_drq;
    int isa_drq;
} SMC37c669_DRQ_TRANSLATION_ENTRY;

/*
** External Interface Function Prototype Declarations
*/

SMC37c669_CONFIG_REGS *SMC37c669_detect( 
    int
);

unsigned int SMC37c669_enable_device( 
    unsigned int func 
);

unsigned int SMC37c669_disable_device( 
    unsigned int func 
);

unsigned int SMC37c669_configure_device( 
    unsigned int func, 
    int port, 
    int irq, 
    int drq 
);

void SMC37c669_display_device_info( 
    void 
);

#endif	/* __SMC37c669_H */

/* file:	smcc669.c
 *
 * Copyright (C) 1997 by
 * Digital Equipment Corporation, Maynard, Massachusetts.
 * All rights reserved.
 *
 * This software is furnished under a license and may be used and copied
 * only  in  accordance  of  the  terms  of  such  license  and with the
 * inclusion of the above copyright notice. This software or  any  other
 * copies thereof may not be provided or otherwise made available to any
 * other person.  No title to and  ownership of the  software is  hereby
 * transferred.
 *
 * The information in this software is  subject to change without notice
 * and  should  not  be  construed  as a commitment by digital equipment
 * corporation.
 *
 * Digital assumes no responsibility for the use  or  reliability of its
 * software on equipment which is not supplied by digital.
 */

/*
 *++
 *  FACILITY:
 *
 *      Alpha SRM Console Firmware
 *
 *  MODULE DESCRIPTION:
 *
 *	SMC37c669 Super I/O controller configuration routines.
 *
 *  AUTHORS:
 *
 *	Eric Rasmussen
 *
 *  CREATION DATE:
 *  
 *	28-Jan-1997
 *
 *  MODIFICATION HISTORY:
 *	
 *	er	01-May-1997	Fixed pointer conversion errors in 
 *				SMC37c669_get_device_config().
 *      er	28-Jan-1997	Initial version.
 *
 *--
 */
#if 0
/* $INCLUDE_OPTIONS$ */
#include    "cp$inc:platform_io.h"
/* $INCLUDE_OPTIONS_END$ */
#include    "cp$src:common.h"
#include    "cp$inc:prototypes.h"
#include    "cp$src:kernel_def.h"
#include    "cp$src:msg_def.h"
#include    "cp$src:smcc669_def.h"
/* Platform-specific includes */
#include    "cp$src:platform.h"
#endif

#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif

#define wb( _x_, _y_ )	outb( _y_, (unsigned int)((unsigned long)_x_) )
#define rb( _x_ )	inb( (unsigned int)((unsigned long)_x_) )

/*
** Local storage for device configuration information.
**
** Since the SMC37c669 does not provide an explicit
** mechanism for enabling/disabling individual device 
** functions, other than unmapping the device, local 
** storage for device configuration information is 
** allocated here for use in implementing our own 
** function enable/disable scheme.
*/
static struct DEVICE_CONFIG {
    unsigned int port1;
    unsigned int port2;
    unsigned int irq;
    unsigned int drq;
} local_config [NUM_FUNCS];

/*
** List of all possible addresses for the Super I/O chip
*/
static unsigned long SMC37c669_Addresses[] __initdata =
    {
	0x3F0UL,	    /* Primary address	    */
	0x370UL,	    /* Secondary address    */
	0UL		    /* End of list	    */
    };

/*
** Global Pointer to the Super I/O device
*/
static SMC37c669_CONFIG_REGS *SMC37c669 __initdata = NULL;

/*
** IRQ Translation Table
**
** The IRQ translation table is a list of SMC37c669 device 
** and standard ISA IRQs.
**
*/
static SMC37c669_IRQ_TRANSLATION_ENTRY *SMC37c669_irq_table __initdata = 0; 

/*
** The following definition is for the default IRQ 
** translation table.
*/
static SMC37c669_IRQ_TRANSLATION_ENTRY SMC37c669_default_irq_table[]
__initdata = 
    { 
	{ SMC37c669_DEVICE_IRQ_A, -1 }, 
	{ SMC37c669_DEVICE_IRQ_B, -1 }, 
	{ SMC37c669_DEVICE_IRQ_C, 7 }, 
	{ SMC37c669_DEVICE_IRQ_D, 6 }, 
	{ SMC37c669_DEVICE_IRQ_E, 4 }, 
	{ SMC37c669_DEVICE_IRQ_F, 3 }, 
	{ SMC37c669_DEVICE_IRQ_H, -1 }, 
	{ -1, -1 } /* End of table */
    };

/*
** The following definition is for the MONET (XP1000) IRQ 
** translation table.
*/
static SMC37c669_IRQ_TRANSLATION_ENTRY SMC37c669_monet_irq_table[]
__initdata = 
    { 
	{ SMC37c669_DEVICE_IRQ_A, -1 }, 
	{ SMC37c669_DEVICE_IRQ_B, -1 }, 
	{ SMC37c669_DEVICE_IRQ_C, 6 }, 
	{ SMC37c669_DEVICE_IRQ_D, 7 }, 
	{ SMC37c669_DEVICE_IRQ_E, 4 }, 
	{ SMC37c669_DEVICE_IRQ_F, 3 }, 
	{ SMC37c669_DEVICE_IRQ_H, -1 }, 
	{ -1, -1 } /* End of table */
    };

static SMC37c669_IRQ_TRANSLATION_ENTRY *SMC37c669_irq_tables[] __initdata =
    {
	SMC37c669_default_irq_table,
	SMC37c669_monet_irq_table
    }; 

/*
** DRQ Translation Table
**
** The DRQ translation table is a list of SMC37c669 device and
** ISA DMA channels.
**
*/