cregit-Linux how code gets into the kernel

Release 4.7 drivers/pci/hotplug/ibmphp.h

Directory: drivers/pci/hotplug
#ifndef __IBMPHP_H

#define __IBMPHP_H

/*
 * IBM Hot Plug Controller Driver
 *
 * Written By: Jyoti Shah, Tong Yu, Irene Zubarev, IBM Corporation
 *
 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
 * Copyright (C) 2001-2003 IBM Corp.
 *
 * All rights reserved.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 * NON INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Send feedback to <gregkh@us.ibm.com>
 *
 */

#include <linux/pci_hotplug.h>

extern int ibmphp_debug;

#if !defined(MODULE)
	
#define MY_NAME "ibmphpd"
#else
	
#define MY_NAME THIS_MODULE->name
#endif

#define debug(fmt, arg...) do { if (ibmphp_debug == 1) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)

#define debug_pci(fmt, arg...) do { if (ibmphp_debug) printk(KERN_DEBUG "%s: " fmt, MY_NAME, ## arg); } while (0)

#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)

#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)

#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)


/* EBDA stuff */

/***********************************************************
* SLOT CAPABILITY                                          *
***********************************************************/


#define EBDA_SLOT_133_MAX		0x20

#define EBDA_SLOT_100_MAX		0x10

#define EBDA_SLOT_66_MAX		0x02

#define EBDA_SLOT_PCIX_CAP		0x08


/************************************************************
*  RESOURCE TYPE                                             *
************************************************************/


#define EBDA_RSRC_TYPE_MASK		0x03

#define EBDA_IO_RSRC_TYPE		0x00

#define EBDA_MEM_RSRC_TYPE		0x01

#define EBDA_PFM_RSRC_TYPE		0x03

#define EBDA_RES_RSRC_TYPE		0x02


/*************************************************************
*  IO RESTRICTION TYPE                                       *
*************************************************************/


#define EBDA_IO_RESTRI_MASK		0x0c

#define EBDA_NO_RESTRI			0x00

#define EBDA_AVO_VGA_ADDR		0x04

#define EBDA_AVO_VGA_ADDR_AND_ALIA	0x08

#define EBDA_AVO_ISA_ADDR		0x0c


/**************************************************************
*  DEVICE TYPE DEF                                            *
**************************************************************/


#define EBDA_DEV_TYPE_MASK		0x10

#define EBDA_PCI_DEV			0x10

#define EBDA_NON_PCI_DEV		0x00


/***************************************************************
*  PRIMARY DEF DEFINITION                                      *
***************************************************************/


#define EBDA_PRI_DEF_MASK		0x20

#define EBDA_PRI_PCI_BUS_INFO		0x20

#define EBDA_NORM_DEV_RSRC_INFO		0x00


//--------------------------------------------------------------
// RIO TABLE DATA STRUCTURE
//--------------------------------------------------------------


struct rio_table_hdr {
	
u8 ver_num;
	
u8 scal_count;
	
u8 riodev_count;
	
u16 offset;
};

//-------------------------------------------------------------
// SCALABILITY DETAIL
//-------------------------------------------------------------


struct scal_detail {
	
u8 node_id;
	
u32 cbar;
	
u8 port0_node_connect;
	
u8 port0_port_connect;
	
u8 port1_node_connect;
	
u8 port1_port_connect;
	
u8 port2_node_connect;
	
u8 port2_port_connect;
	
u8 chassis_num;
//      struct list_head scal_detail_list;
};

//--------------------------------------------------------------
// RIO DETAIL
//--------------------------------------------------------------


struct rio_detail {
	
u8 rio_node_id;
	
u32 bbar;
	
u8 rio_type;
	
u8 owner_id;
	
u8 port0_node_connect;
	
u8 port0_port_connect;
	
u8 port1_node_connect;
	
u8 port1_port_connect;
	
u8 first_slot_num;
	
u8 status;
	
u8 wpindex;
	
u8 chassis_num;
	
struct list_head rio_detail_list;
};


struct opt_rio {
	
u8 rio_type;
	
u8 chassis_num;
	
u8 first_slot_num;
	
u8 middle_num;
	
struct list_head opt_rio_list;
};


struct opt_rio_lo {
	
u8 rio_type;
	
u8 chassis_num;
	
u8 first_slot_num;
	
u8 middle_num;
	
u8 pack_count;
	
struct list_head opt_rio_lo_list;
};

/****************************************************************
*  HPC DESCRIPTOR NODE                                          *
****************************************************************/


struct ebda_hpc_list {
	
u8 format;
	
u16 num_ctlrs;
	
short phys_addr;
//      struct list_head ebda_hpc_list;
};
/*****************************************************************
*   IN HPC DATA STRUCTURE, THE ASSOCIATED SLOT AND BUS           *
*   STRUCTURE                                                    *
*****************************************************************/


struct ebda_hpc_slot {
	
u8 slot_num;
	
u32 slot_bus_num;
	
u8 ctl_index;
	
u8 slot_cap;
};


struct ebda_hpc_bus {
	
u32 bus_num;
	
u8 slots_at_33_conv;
	
u8 slots_at_66_conv;
	
u8 slots_at_66_pcix;
	
u8 slots_at_100_pcix;
	
u8 slots_at_133_pcix;
};


/********************************************************************
*   THREE TYPE OF HOT PLUG CONTROLLER                                *
********************************************************************/


struct isa_ctlr_access {
	
u16 io_start;
	
u16 io_end;
};


struct pci_ctlr_access {
	
u8 bus;
	
u8 dev_fun;
};


struct wpeg_i2c_ctlr_access {
	
ulong wpegbbar;
	
u8 i2c_addr;
};


#define HPC_DEVICE_ID		0x0246

#define HPC_SUBSYSTEM_ID	0x0247

#define HPC_PCI_OFFSET		0x40
/*************************************************************************
*   RSTC DESCRIPTOR NODE                                                 *
*************************************************************************/


struct ebda_rsrc_list {
	
u8 format;
	
u16 num_entries;
	
u16 phys_addr;
	
struct ebda_rsrc_list *next;
};


/***************************************************************************
*   PCI RSRC NODE                                                          *
***************************************************************************/


struct ebda_pci_rsrc {
	
u8 rsrc_type;
	
u8 bus_num;
	
u8 dev_fun;
	
u32 start_addr;
	
u32 end_addr;
	
u8 marked;	/* for NVRAM */
	
struct list_head ebda_pci_rsrc_list;
};


/***********************************************************
* BUS_INFO DATE STRUCTURE                                  *
***********************************************************/


struct bus_info {
	
u8 slot_min;
	
u8 slot_max;
	
u8 slot_count;
	
u8 busno;
	
u8 controller_id;
	
u8 current_speed;
	
u8 current_bus_mode;
	
u8 index;
	
u8 slots_at_33_conv;
	
u8 slots_at_66_conv;
	
u8 slots_at_66_pcix;
	
u8 slots_at_100_pcix;
	
u8 slots_at_133_pcix;
	
struct list_head bus_info_list;
};


/***********************************************************
* GLOBAL VARIABLES                                         *
***********************************************************/
extern struct list_head ibmphp_ebda_pci_rsrc_head;
extern struct list_head ibmphp_slot_head;
/***********************************************************
* FUNCTION PROTOTYPES                                      *
***********************************************************/

void ibmphp_free_ebda_hpc_queue(void);
int ibmphp_access_ebda(void);
struct slot *ibmphp_get_slot_from_physical_num(u8);
int ibmphp_get_total_hp_slots(void);
void ibmphp_free_ibm_slot(struct slot *);
void ibmphp_free_bus_info_queue(void);
void ibmphp_free_ebda_pci_rsrc_queue(void);
struct bus_info *ibmphp_find_same_bus_num(u32);
int ibmphp_get_bus_index(u8);
u16 ibmphp_get_total_controllers(void);
int ibmphp_register_pci(void);

/* passed parameters */

#define MEM		0

#define IO		1

#define PFMEM		2

/* bit masks */

#define RESTYPE		0x03

#define IOMASK		0x00	
/* will need to take its complement */

#define MMASK		0x01

#define PFMASK		0x03

#define PCIDEVMASK	0x10	
/* we should always have PCI devices */

#define PRIMARYBUSMASK	0x20

/* pci specific defines */

#define PCI_VENDOR_ID_NOTVALID		0xFFFF

#define PCI_HEADER_TYPE_MULTIDEVICE	0x80

#define PCI_HEADER_TYPE_MULTIBRIDGE	0x81


#define LATENCY		0x64

#define CACHE		64

#define DEVICEENABLE	0x015F		
/* CPQ has 0x0157 */


#define IOBRIDGE	0x1000		
/* 4k */

#define MEMBRIDGE	0x100000	
/* 1M */

/* irqs */

#define SCSI_IRQ	0x09

#define LAN_IRQ		0x0A

#define OTHER_IRQ	0x0B

/* Data Structures */

/* type is of the form x x xx xx
 *                     | |  |  |_ 00 - I/O, 01 - Memory, 11 - PFMemory
 *                     | |  - 00 - No Restrictions, 01 - Avoid VGA, 10 - Avoid
 *                     | |    VGA and their aliases, 11 - Avoid ISA
 *                     | - 1 - PCI device, 0 - non pci device
 *                     - 1 - Primary PCI Bus Information (0 if Normal device)
 * the IO restrictions [2:3] are only for primary buses
 */


/* we need this struct because there could be several resource blocks
 * allocated per primary bus in the EBDA
 */

struct range_node {
	
int rangeno;
	
u32 start;
	
u32 end;
	
struct range_node *next;
};


struct bus_node {
	
u8 busno;
	
int noIORanges;
	
struct range_node *rangeIO;
	
int noMemRanges;
	
struct range_node *rangeMem;
	
int noPFMemRanges;
	
struct range_node *rangePFMem;
	
int needIOUpdate;
	
int needMemUpdate;
	
int needPFMemUpdate;
	
struct resource_node *firstIO;	/* first IO resource on the Bus */
	
struct resource_node *firstMem;	/* first memory resource on the Bus */
	
struct resource_node *firstPFMem;	/* first prefetchable memory resource on the Bus */
	
struct resource_node *firstPFMemFromMem;	/* when run out of pfmem available, taking from Mem */
	
struct list_head bus_list;
};


struct resource_node {
	
int rangeno;
	
u8 busno;
	
u8 devfunc;
	
u32 start;
	
u32 end;
	
u32 len;
	
int type;		/* MEM, IO, PFMEM */
	
u8 fromMem;		/* this is to indicate that the range is from
                                 * from the Memory bucket rather than from PFMem */
	
struct resource_node *next;
	
struct resource_node *nextRange;	/* for the other mem range on bus */
};


struct res_needed {
	
u32 mem;
	
u32 pfmem;
	
u32 io;
	
u8 not_correct;		/* needed for return */
	
int devices[32];	/* for device numbers behind this bridge */
};

/* functions */

int ibmphp_rsrc_init(void);
int ibmphp_add_resource(struct resource_node *);
int ibmphp_remove_resource(struct resource_node *);
int ibmphp_find_resource(struct bus_node *, u32, struct resource_node **, int);
int ibmphp_check_resource(struct resource_node *, u8);
int ibmphp_remove_bus(struct bus_node *, u8);
void ibmphp_free_resources(void);
int ibmphp_add_pfmem_from_mem(struct resource_node *);
struct bus_node *ibmphp_find_res_bus(u8);
void ibmphp_print_test(void);	/* for debugging purposes */

void ibmphp_hpc_initvars(void);
int ibmphp_hpc_readslot(struct slot *, u8, u8 *);
int ibmphp_hpc_writeslot(struct slot *, u8);
void ibmphp_lock_operations(void);
void ibmphp_unlock_operations(void);
int ibmphp_hpc_start_poll_thread(void);
void ibmphp_hpc_stop_poll_thread(void);

//----------------------------------------------------------------------------


//----------------------------------------------------------------------------
// HPC return codes
//----------------------------------------------------------------------------

#define HPC_ERROR			0xFF

//-----------------------------------------------------------------------------
// BUS INFO
//-----------------------------------------------------------------------------

#define BUS_SPEED			0x30

#define BUS_MODE			0x40

#define BUS_MODE_PCIX			0x01

#define BUS_MODE_PCI			0x00

#define BUS_SPEED_2			0x20

#define BUS_SPEED_1			0x10

#define BUS_SPEED_33			0x00

#define BUS_SPEED_66			0x01

#define BUS_SPEED_100			0x02

#define BUS_SPEED_133			0x03

#define BUS_SPEED_66PCIX		0x04

#define BUS_SPEED_66UNKNOWN		0x05

#define BUS_STATUS_AVAILABLE		0x01

#define BUS_CONTROL_AVAILABLE		0x02

#define SLOT_LATCH_REGS_SUPPORTED	0x10


#define PRGM_MODEL_REV_LEVEL		0xF0

#define MAX_ADAPTER_NONE		0x09

//----------------------------------------------------------------------------
// HPC 'write' operations/commands
//----------------------------------------------------------------------------
//      Command                 Code    State   Write to reg
//                                      Machine at index
//-------------------------     ----    ------- ------------

#define HPC_CTLR_ENABLEIRQ	0x00	
// N    15

#define HPC_CTLR_DISABLEIRQ	0x01	
// N    15

#define HPC_SLOT_OFF		0x02	
// Y    0-14

#define HPC_SLOT_ON		0x03	
// Y    0-14

#define HPC_SLOT_ATTNOFF	0x04	
// N    0-14

#define HPC_SLOT_ATTNON		0x05	
// N    0-14

#define HPC_CTLR_CLEARIRQ	0x06	
// N    15

#define HPC_CTLR_RESET		0x07	
// Y    15

#define HPC_CTLR_IRQSTEER	0x08	
// N    15

#define HPC_BUS_33CONVMODE	0x09	
// Y    31-34

#define HPC_BUS_66CONVMODE	0x0A	
// Y    31-34

#define HPC_BUS_66PCIXMODE	0x0B	
// Y    31-34

#define HPC_BUS_100PCIXMODE	0x0C	
// Y    31-34

#define HPC_BUS_133PCIXMODE	0x0D	
// Y    31-34

#define HPC_ALLSLOT_OFF		0x11	
// Y    15

#define HPC_ALLSLOT_ON		0x12	
// Y    15

#define HPC_SLOT_BLINKLED	0x13	
// N    0-14

//----------------------------------------------------------------------------
// read commands
//----------------------------------------------------------------------------

#define READ_SLOTSTATUS		0x01

#define READ_EXTSLOTSTATUS	0x02

#define READ_BUSSTATUS		0x03

#define READ_CTLRSTATUS		0x04

#define READ_ALLSTAT		0x05

#define READ_ALLSLOT		0x06

#define READ_SLOTLATCHLOWREG	0x07

#define READ_REVLEVEL		0x08

#define READ_HPCOPTIONS		0x09
//----------------------------------------------------------------------------
// slot status
//----------------------------------------------------------------------------

#define HPC_SLOT_POWER		0x01

#define HPC_SLOT_CONNECT	0x02

#define HPC_SLOT_ATTN		0x04

#define HPC_SLOT_PRSNT2		0x08

#define HPC_SLOT_PRSNT1		0x10

#define HPC_SLOT_PWRGD		0x20

#define HPC_SLOT_BUS_SPEED	0x40

#define HPC_SLOT_LATCH		0x80

//----------------------------------------------------------------------------
// HPC_SLOT_POWER status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_POWER_OFF	0x00

#define HPC_SLOT_POWER_ON	0x01

//----------------------------------------------------------------------------
// HPC_SLOT_CONNECT status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_CONNECTED	0x00

#define HPC_SLOT_DISCONNECTED	0x01

//----------------------------------------------------------------------------
// HPC_SLOT_ATTN status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_ATTN_OFF	0x00

#define HPC_SLOT_ATTN_ON	0x01

#define HPC_SLOT_ATTN_BLINK	0x02

//----------------------------------------------------------------------------
// HPC_SLOT_PRSNT status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_EMPTY		0x00

#define HPC_SLOT_PRSNT_7	0x01

#define HPC_SLOT_PRSNT_15	0x02

#define HPC_SLOT_PRSNT_25	0x03

//----------------------------------------------------------------------------
// HPC_SLOT_PWRGD status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_PWRGD_FAULT_NONE	0x00

#define HPC_SLOT_PWRGD_GOOD		0x01

//----------------------------------------------------------------------------
// HPC_SLOT_BUS_SPEED status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_BUS_SPEED_OK	0x00

#define HPC_SLOT_BUS_SPEED_MISM	0x01

//----------------------------------------------------------------------------
// HPC_SLOT_LATCH status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_LATCH_OPEN	0x01	
// NOTE : in PCI spec bit off = open

#define HPC_SLOT_LATCH_CLOSED	0x00	
// NOTE : in PCI spec bit on  = closed


//----------------------------------------------------------------------------
// extended slot status
//----------------------------------------------------------------------------

#define HPC_SLOT_PCIX		0x01

#define HPC_SLOT_SPEED1		0x02

#define HPC_SLOT_SPEED2		0x04

#define HPC_SLOT_BLINK_ATTN	0x08

#define HPC_SLOT_RSRVD1		0x10

#define HPC_SLOT_RSRVD2		0x20

#define HPC_SLOT_BUS_MODE	0x40

#define HPC_SLOT_RSRVD3		0x80

//----------------------------------------------------------------------------
// HPC_XSLOT_PCIX_CAP status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_PCIX_NO	0x00

#define HPC_SLOT_PCIX_YES	0x01

//----------------------------------------------------------------------------
// HPC_XSLOT_SPEED status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_SPEED_33	0x00

#define HPC_SLOT_SPEED_66	0x01

#define HPC_SLOT_SPEED_133	0x02

//----------------------------------------------------------------------------
// HPC_XSLOT_ATTN_BLINK status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_ATTN_BLINK_OFF	0x00

#define HPC_SLOT_ATTN_BLINK_ON	0x01

//----------------------------------------------------------------------------
// HPC_XSLOT_BUS_MODE status return codes
//----------------------------------------------------------------------------

#define HPC_SLOT_BUS_MODE_OK	0x00

#define HPC_SLOT_BUS_MODE_MISM	0x01

//----------------------------------------------------------------------------
// Controller status
//----------------------------------------------------------------------------

#define HPC_CTLR_WORKING	0x01

#define HPC_CTLR_FINISHED	0x02

#define HPC_CTLR_RESULT0	0x04

#define HPC_CTLR_RESULT1	0x08

#define HPC_CTLR_RESULE2	0x10

#define HPC_CTLR_RESULT3	0x20

#define HPC_CTLR_IRQ_ROUTG	0x40

#define HPC_CTLR_IRQ_PENDG	0x80

//----------------------------------------------------------------------------
// HPC_CTLR_WORKING status return codes
//----------------------------------------------------------------------------

#define HPC_CTLR_WORKING_NO	0x00

#define HPC_CTLR_WORKING_YES	0x01

//----------------------------------------------------------------------------
// HPC_CTLR_FINISHED status return codes
//----------------------------------------------------------------------------

#define HPC_CTLR_FINISHED_NO	0x00

#define HPC_CTLR_FINISHED_YES	0x01

//----------------------------------------------------------------------------
// HPC_CTLR_RESULT status return codes
//----------------------------------------------------------------------------

#define HPC_CTLR_RESULT_SUCCESS	0x00

#define HPC_CTLR_RESULT_FAILED	0x01

#define HPC_CTLR_RESULT_RSVD	0x02

#define HPC_CTLR_RESULT_NORESP	0x03


//----------------------------------------------------------------------------
// macro for slot info
//----------------------------------------------------------------------------

#define SLOT_POWER(s)	((u8) ((s & HPC_SLOT_POWER) \
        ? HPC_SLOT_POWER_ON : HPC_SLOT_POWER_OFF))


#define SLOT_CONNECT(s)	((u8) ((s & HPC_SLOT_CONNECT) \
        ? HPC_SLOT_DISCONNECTED : HPC_SLOT_CONNECTED))


#define SLOT_ATTN(s, es)	((u8) ((es & HPC_SLOT_BLINK_ATTN) \
        ? HPC_SLOT_ATTN_BLINK \
        : ((s & HPC_SLOT_ATTN) ? HPC_SLOT_ATTN_ON : HPC_SLOT_ATTN_OFF)))


#define SLOT_PRESENT(s)	((u8) ((s & HPC_SLOT_PRSNT1) \
        ? ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_EMPTY : HPC_SLOT_PRSNT_15) \
        : ((s & HPC_SLOT_PRSNT2) ? HPC_SLOT_PRSNT_25 : HPC_SLOT_PRSNT_7)))


#define SLOT_PWRGD(s)	((u8) ((s & HPC_SLOT_PWRGD) \
        ? HPC_SLOT_PWRGD_GOOD : HPC_SLOT_PWRGD_FAULT_NONE))


#define SLOT_BUS_SPEED(s)	((u8) ((s & HPC_SLOT_BUS_SPEED) \
        ? HPC_SLOT_BUS_SPEED_MISM : HPC_SLOT_BUS_SPEED_OK))


#define SLOT_LATCH(s)	((u8) ((s & HPC_SLOT_LATCH) \
        ? HPC_SLOT_LATCH_CLOSED : HPC_SLOT_LATCH_OPEN))


#define SLOT_PCIX(es)	((u8) ((es & HPC_SLOT_PCIX) \
        ? HPC_SLOT_PCIX_YES : HPC_SLOT_PCIX_NO))


#define SLOT_SPEED(es)	((u8) ((es & HPC_SLOT_SPEED2) \
        ? ((es & HPC_SLOT_SPEED1) ? HPC_SLOT_SPEED_133   \
                                : HPC_SLOT_SPEED_66)   \
        : HPC_SLOT_SPEED_33))


#define SLOT_BUS_MODE(es)	((u8) ((es & HPC_SLOT_BUS_MODE) \
        ? HPC_SLOT_BUS_MODE_MISM : HPC_SLOT_BUS_MODE_OK))

//--------------------------------------------------------------------------
// macro for bus info
//---------------------------------------------------------------------------

#define CURRENT_BUS_SPEED(s)	((u8) (s & BUS_SPEED_2) \
        ? ((s & BUS_SPEED_1) ? BUS_SPEED_133 : BUS_SPEED_100) \
        : ((s & BUS_SPEED_1) ? BUS_SPEED_66 : BUS_SPEED_33))


#define CURRENT_BUS_MODE(s)	((u8) (s & BUS_MODE) ? BUS_MODE_PCIX : BUS_MODE_PCI)


#define READ_BUS_STATUS(s)	((u8) (s->options & BUS_STATUS_AVAILABLE))


#define READ_BUS_MODE(s)	((s->revision & PRGM_MODEL_REV_LEVEL) >= 0x20)


#define SET_BUS_STATUS(s)	((u8) (s->options & BUS_CONTROL_AVAILABLE))


#define READ_SLOT_LATCH(s)	((u8) (s->options & SLOT_LATCH_REGS_SUPPORTED))

//----------------------------------------------------------------------------
// macro for controller info
//----------------------------------------------------------------------------

#define CTLR_WORKING(c) ((u8) ((c & HPC_CTLR_WORKING) \
        ? HPC_CTLR_WORKING_YES : HPC_CTLR_WORKING_NO))

#define CTLR_FINISHED(c) ((u8) ((c & HPC_CTLR_FINISHED) \
        ? HPC_CTLR_FINISHED_YES : HPC_CTLR_FINISHED_NO))

#define CTLR_RESULT(c) ((u8) ((c & HPC_CTLR_RESULT1)  \
        ? ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_NORESP \
                                : HPC_CTLR_RESULT_RSVD)  \
        : ((c & HPC_CTLR_RESULT0) ? HPC_CTLR_RESULT_FAILED \
                                : HPC_CTLR_RESULT_SUCCESS)))

// command that affect the state machine of HPC

#define NEEDTOCHECK_CMDSTATUS(c) ((c == HPC_SLOT_OFF)        || \
                                  (c == HPC_SLOT_ON)         || \
                                  (c == HPC_CTLR_RESET)      || \
                                  (c == HPC_BUS_33CONVMODE)  || \
                                  (c == HPC_BUS_66CONVMODE)  || \
                                  (c == HPC_BUS_66PCIXMODE)  || \
                                  (c == HPC_BUS_100PCIXMODE) || \
                                  (c == HPC_BUS_133PCIXMODE) || \
                                  (c == HPC_ALLSLOT_OFF)     || \
                                  (c == HPC_ALLSLOT_ON))


/* Core part of the driver */


#define ENABLE		1

#define DISABLE		0


#define CARD_INFO	0x07

#define PCIX133		0x07

#define PCIX66		0x05

#define PCI66		0x04

extern struct pci_bus *ibmphp_pci_bus;

/* Variables */


struct pci_func {
	
struct pci_dev *dev;	/* from the OS */
	
u8 busno;
	
u8 device;
	
u8 function;
	
struct resource_node *io[6];
	
struct resource_node *mem[6];
	
struct resource_node *pfmem[6];
	
struct pci_func *next;
	
int devices[32];	/* for bridge config */
	
u8 irq[4];		/* for interrupt config */
	
u8 bus;			/* flag for unconfiguring, to say if PPB */
};


struct slot {
	
u8 bus;
	
u8 device;
	
u8 number;
	
u8 real_physical_slot_num;
	
u32 capabilities;
	
u8 supported_speed;
	
u8 supported_bus_mode;
	
u8 flag;		/* this is for disable slot and polling */
	
u8 ctlr_index;
	
struct hotplug_slot *hotplug_slot;
	
struct controller *ctrl;
	
struct pci_func *func;
	
u8 irq[4];
	
int bit_mode;		/* 0 = 32, 1 = 64 */
	
struct bus_info *bus_on;
	
struct list_head ibm_slot_list;
	
u8 status;
	
u8 ext_status;
	
u8 busstatus;
};


struct controller {
	
struct ebda_hpc_slot *slots;
	
struct ebda_hpc_bus *buses;
	
struct pci_dev *ctrl_dev; /* in case where controller is PCI */
	
u8 starting_slot_num;	/* starting and ending slot #'s this ctrl controls*/
	
u8 ending_slot_num;
	
u8 revision;
	
u8 options;		/* which options HPC supports */
	
u8 status;
	
u8 ctlr_id;
	
u8 slot_count;
	
u8 bus_count;
	
u8 ctlr_relative_id;
	
u32 irq;
	union {
		
struct isa_ctlr_access isa_ctlr;
		
struct pci_ctlr_access pci_ctlr;
		
struct wpeg_i2c_ctlr_access wpeg_ctlr;
	} 
u;
	
u8 ctlr_type;
	
struct list_head ebda_hpc_list;
};

/* Functions */

int ibmphp_init_devno(struct slot **);	/* This function is called from EBDA, so we need it not be static */
int ibmphp_do_disable_slot(struct slot *slot_cur);
int ibmphp_update_slot_info(struct slot *);	/* This function is called from HPC, so we need it to not be be static */
int ibmphp_configure_card(struct pci_func *, u8);
int ibmphp_unconfigure_card(struct slot **, int);
extern struct hotplug_slot_ops ibmphp_hotplug_slot_ops;

#endif				//__IBMPHP_H


Overall Contributors
PersonTokensPropCommitsCommitProp
greg kroah-hartmangreg kroah-hartman183594.20%646.15%


irene zubarevirene zubarev974.98%215.38%


alex chiangalex chiang70.36%17.69%


bogicevic sasabogicevic sasa50.26%17.69%


bjorn helgaasbjorn helgaas20.10%17.69%


adrian bunkadrian bunk10.05%17.69%


steven colesteven cole10.05%17.69%


Total1948100.00%13100.00%

  
Directory: drivers/pci/hotplug



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