ibmphp.h

audio driver for hotplug pci on linux 2.6.27

/* functions */

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

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

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

#endif				//__IBMPHP_H