cpqphp.h

优龙2410linux2.6.8内核源代码

#define PCISLOT_INTERLOCK_CLOSED	0x00000001
#define PCISLOT_ADAPTER_PRESENT		0x00000002
#define PCISLOT_POWERED			0x00000004
#define PCISLOT_66_MHZ_OPERATION	0x00000008
#define PCISLOT_64_BIT_OPERATION	0x00000010
#define PCISLOT_REPLACE_SUPPORTED	0x00000020
#define PCISLOT_ADD_SUPPORTED		0x00000040
#define PCISLOT_INTERLOCK_SUPPORTED	0x00000080
#define PCISLOT_66_MHZ_SUPPORTED	0x00000100
#define PCISLOT_64_BIT_SUPPORTED	0x00000200

#define PCI_TO_PCI_BRIDGE_CLASS		0x00060400

#define INTERLOCK_OPEN			0x00000002
#define ADD_NOT_SUPPORTED		0x00000003
#define CARD_FUNCTIONING		0x00000005
#define ADAPTER_NOT_SAME		0x00000006
#define NO_ADAPTER_PRESENT		0x00000009
#define NOT_ENOUGH_RESOURCES		0x0000000B
#define DEVICE_TYPE_NOT_SUPPORTED	0x0000000C
#define POWER_FAILURE			0x0000000E

#define REMOVE_NOT_SUPPORTED		0x00000003


/*
 * error Messages
 */
#define msg_initialization_err	"Initialization failure, error=%d\n"
#define msg_HPC_rev_error	"Unsupported revision of the PCI hot plug controller found.\n"
#define msg_HPC_non_compaq_or_intel	"The PCI hot plug controller is not supported by this driver.\n"
#define msg_HPC_not_supported	"this system is not supported by this version of cpqphpd. Upgrade to a newer version of cpqphpd\n"
#define msg_unable_to_save	"unable to store PCI hot plug add resource information. This system must be rebooted before adding any PCI devices.\n"
#define msg_button_on		"PCI slot #%d - powering on due to button press.\n"
#define msg_button_off		"PCI slot #%d - powering off due to button press.\n"
#define msg_button_cancel	"PCI slot #%d - action canceled due to button press.\n"
#define msg_button_ignore	"PCI slot #%d - button press ignored.  (action in progress...)\n"


/* sysfs functions for the hotplug controller info */
extern void cpqhp_create_ctrl_files		(struct controller *ctrl);

/* controller functions */
extern void	cpqhp_pushbutton_thread		(unsigned long event_pointer);
extern irqreturn_t cpqhp_ctrl_intr		(int IRQ, void *data, struct pt_regs *regs);
extern int	cpqhp_find_available_resources	(struct controller *ctrl, void *rom_start);
extern int	cpqhp_event_start_thread	(void);
extern void	cpqhp_event_stop_thread		(void);
extern struct pci_func *cpqhp_slot_create	(unsigned char busnumber);
extern struct pci_func *cpqhp_slot_find		(unsigned char bus, unsigned char device, unsigned char index);
extern int	cpqhp_process_SI		(struct controller *ctrl, struct pci_func *func);
extern int	cpqhp_process_SS		(struct controller *ctrl, struct pci_func *func);
extern int	cpqhp_hardware_test		(struct controller *ctrl, int test_num);

/* resource functions */
extern int	cpqhp_resource_sort_and_combine	(struct pci_resource **head);

/* pci functions */
extern int	cpqhp_set_irq			(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num);
extern int	cpqhp_get_bus_dev		(struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot);
extern int	cpqhp_save_config		(struct controller *ctrl, int busnumber, int is_hot_plug);
extern int	cpqhp_save_base_addr_length	(struct controller *ctrl, struct pci_func * func);
extern int	cpqhp_save_used_resources	(struct controller *ctrl, struct pci_func * func);
extern int	cpqhp_configure_board		(struct controller *ctrl, struct pci_func * func);
extern int	cpqhp_save_slot_config		(struct controller *ctrl, struct pci_func * new_slot);
extern int	cpqhp_valid_replace		(struct controller *ctrl, struct pci_func * func);
extern void	cpqhp_destroy_board_resources	(struct pci_func * func);
extern int	cpqhp_return_board_resources	(struct pci_func * func, struct resource_lists * resources);
extern void	cpqhp_destroy_resource_list	(struct resource_lists * resources);
extern int	cpqhp_configure_device		(struct controller* ctrl, struct pci_func* func);
extern int	cpqhp_unconfigure_device	(struct pci_func* func);

/* Global variables */
extern int cpqhp_debug;
extern int cpqhp_legacy_mode;
extern struct controller *cpqhp_ctrl_list;
extern struct pci_func *cpqhp_slot_list[256];

/* these can be gotten rid of, but for debugging they are purty */
extern u8 cpqhp_nic_irq;
extern u8 cpqhp_disk_irq;


/* inline functions */

/*
 * return_resource
 *
 * Puts node back in the resource list pointed to by head
 *
 */
static inline void return_resource(struct pci_resource **head, struct pci_resource *node)
{
	if (!node || !head)
		return;
	node->next = *head;
	*head = node;
}

static inline void set_SOGO(struct controller *ctrl)
{
	u16 misc;
	
	misc = readw(ctrl->hpc_reg + MISC);
	misc = (misc | 0x0001) & 0xFFFB;
	writew(misc, ctrl->hpc_reg + MISC);
}


static inline void amber_LED_on(struct controller *ctrl, u8 slot)
{
	u32 led_control;
	
	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control |= (0x01010000L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


static inline void amber_LED_off(struct controller *ctrl, u8 slot)
{
	u32 led_control;
	
	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x01010000L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


static inline int read_amber_LED(struct controller *ctrl, u8 slot)
{
	u32 led_control;

	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= (0x01010000L << slot);
	
	return led_control ? 1 : 0;
}


static inline void green_LED_on(struct controller *ctrl, u8 slot)
{
	u32 led_control;
	
	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control |= 0x0101L << slot;
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}

static inline void green_LED_off(struct controller *ctrl, u8 slot)
{
	u32 led_control;
	
	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x0101L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


static inline void green_LED_blink(struct controller *ctrl, u8 slot)
{
	u32 led_control;
	
	led_control = readl(ctrl->hpc_reg + LED_CONTROL);
	led_control &= ~(0x0101L << slot);
	led_control |= (0x0001L << slot);
	writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}


static inline void slot_disable(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable &= ~(0x01 << slot);
	writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
}


static inline void slot_enable(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable |= (0x01 << slot);
	writeb(slot_enable, ctrl->hpc_reg + SLOT_ENABLE);
}


static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot)
{
	u8 slot_enable;

	slot_enable = readb(ctrl->hpc_reg + SLOT_ENABLE);
	slot_enable &= (0x01 << slot);
	return slot_enable ? 1 : 0;
}


static inline u8 read_slot_enable(struct controller *ctrl)
{
	return readb(ctrl->hpc_reg + SLOT_ENABLE);
}


/*
 * get_controller_speed - find the current frequency/mode of controller.
 *
 * @ctrl: controller to get frequency/mode for.
 *
 * Returns controller speed.
 *
 */
static inline u8 get_controller_speed(struct controller *ctrl)
{
	u8 curr_freq;
 	u16 misc;
 	
	if (ctrl->pcix_support) {
		curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ);
		if ((curr_freq & 0xB0) == 0xB0) 
			return PCI_SPEED_133MHz_PCIX;
		if ((curr_freq & 0xA0) == 0xA0)
			return PCI_SPEED_100MHz_PCIX;
		if ((curr_freq & 0x90) == 0x90)
			return PCI_SPEED_66MHz_PCIX;
		if (curr_freq & 0x10)
			return PCI_SPEED_66MHz;

		return PCI_SPEED_33MHz;
	}

 	misc = readw(ctrl->hpc_reg + MISC);
 	return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz;
}
 

/*
 * get_adapter_speed - find the max supported frequency/mode of adapter.
 *
 * @ctrl: hotplug controller.
 * @hp_slot: hotplug slot where adapter is installed.
 *
 * Returns adapter speed.
 *
 */
static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot)
{
	u32 temp_dword = readl(ctrl->hpc_reg + NON_INT_INPUT);
	dbg("slot: %d, PCIXCAP: %8x\n", hp_slot, temp_dword);
	if (ctrl->pcix_support) {
		if (temp_dword & (0x10000 << hp_slot))
			return PCI_SPEED_133MHz_PCIX;
		if (temp_dword & (0x100 << hp_slot))
			return PCI_SPEED_66MHz_PCIX;
	}

	if (temp_dword & (0x01 << hp_slot))
		return PCI_SPEED_66MHz;

	return PCI_SPEED_33MHz;
}

static inline void enable_slot_power(struct controller *ctrl, u8 slot)
{
	u8 slot_power;

	slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
	slot_power |= (0x01 << slot);
	writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
}

static inline void disable_slot_power(struct controller *ctrl, u8 slot)
{
	u8 slot_power;

	slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
	slot_power &= ~(0x01 << slot);
	writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
}


static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot)
{
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;

	return read_amber_LED(ctrl, hp_slot);
}


static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot)
{
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;

	return is_slot_enabled(ctrl, hp_slot);
}


static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slot)
{
	u32 status;
	u8 hp_slot;

	hp_slot = slot->device - ctrl->slot_device_offset;
	dbg("%s: slot->device = %d, ctrl->slot_device_offset = %d \n",
	    __FUNCTION__, slot->device, ctrl->slot_device_offset);

	status = (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot));

	return(status == 0) ? 1 : 0;
}


static inline int get_presence_status(struct controller *ctrl, struct slot *slot)
{
	int presence_save = 0;
	u8 hp_slot;
	u32 tempdword;

	hp_slot = slot->device - ctrl->slot_device_offset;

	tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
	presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) >> hp_slot) & 0x02;

	return presence_save;
}

#define SLOT_NAME_SIZE 10

static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
{
	snprintf(buffer, buffer_size, "%d", slot->number);
}


static inline int wait_for_ctrl_irq(struct controller *ctrl)
{
        DECLARE_WAITQUEUE(wait, current);
	int retval = 0;

	dbg("%s - start\n", __FUNCTION__);
	add_wait_queue(&ctrl->queue, &wait);
	set_current_state(TASK_INTERRUPTIBLE);
	/* Sleep for up to 1 second to wait for the LED to change. */
	schedule_timeout(1*HZ);
	remove_wait_queue(&ctrl->queue, &wait);
	if (signal_pending(current))
		retval =  -EINTR;

	dbg("%s - end\n", __FUNCTION__);
	return retval;
}

#endif