#ifndef _CPQPHP_H
#define _CPQPHP_H
-#include "pci_hotplug.h"
#include <linux/interrupt.h>
#include <asm/io.h> /* for read? and write? functions */
#include <linux/delay.h> /* for delays */
+#include <linux/mutex.h>
-#if !defined(CONFIG_HOTPLUG_PCI_COMPAQ_MODULE)
- #define MY_NAME "cpqphp.o"
-#else
- #define MY_NAME THIS_MODULE->name
-#endif
+#define MY_NAME "cpqphp"
#define dbg(fmt, arg...) do { if (cpqhp_debug) printk(KERN_DEBUG "%s: " fmt , MY_NAME , ## arg); } while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg)
struct pci_dev* pci_dev;
};
-#define SLOT_MAGIC 0x67267321
struct slot {
- u32 magic;
struct slot *next;
u8 bus;
u8 device;
struct timer_list task_event;
u8 hp_slot;
struct controller *ctrl;
- void *p_sm_slot;
+ void __iomem *p_sm_slot;
struct hotplug_slot *hotplug_slot;
};
struct controller {
struct controller *next;
u32 ctrl_int_comp;
- struct semaphore crit_sect; /* critical section semaphore */
- void *hpc_reg; /* cookie for our pci controller location */
+ struct mutex crit_sect; /* critical section mutex */
+ void __iomem *hpc_reg; /* cookie for our pci controller location */
struct pci_resource *mem_head;
struct pci_resource *p_mem_head;
struct pci_resource *io_head;
u16 vendor_id;
struct work_struct int_task_event;
wait_queue_head_t queue; /* sleep & wake process */
+ struct dentry *dentry; /* debugfs dentry */
};
struct irq_mapping {
#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 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);
+/* debugfs functions for the hotplug controller info */
+extern void cpqhp_initialize_debugfs (void);
+extern void cpqhp_shutdown_debugfs (void);
+extern void cpqhp_create_debugfs_files (struct controller *ctrl);
+extern void cpqhp_remove_debugfs_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 irqreturn_t cpqhp_ctrl_intr (int IRQ, void *data);
+extern int cpqhp_find_available_resources (struct controller *ctrl, void __iomem *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 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);
-extern struct slot *cpqhp_find_slot (struct controller *ctrl, u8 device);
/* Global variables */
extern int cpqhp_debug;
extern u8 cpqhp_disk_irq;
-
/* inline functions */
-
-/* Inline functions to check the sanity of a pointer that is passed to us */
-static inline int slot_paranoia_check (struct slot *slot, const char *function)
-{
- if (!slot) {
- dbg("%s - slot == NULL", function);
- return -1;
- }
- if (slot->magic != SLOT_MAGIC) {
- dbg("%s - bad magic number for slot", function);
- return -1;
- }
- if (!slot->hotplug_slot) {
- dbg("%s - slot->hotplug_slot == NULL!", function);
- return -1;
- }
- return 0;
-}
-
-static inline struct slot *get_slot (struct hotplug_slot *hotplug_slot, const char *function)
-{
- struct slot *slot;
-
- if (!hotplug_slot) {
- dbg("%s - hotplug_slot == NULL\n", function);
- return NULL;
- }
-
- slot = (struct slot *)hotplug_slot->private;
- if (slot_paranoia_check (slot, function))
- return NULL;
- return slot;
-}
-
/*
* 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)
+static inline void return_resource(struct pci_resource **head, struct pci_resource *node)
{
if (!node || !head)
return;
*head = node;
}
-static inline void set_SOGO (struct controller *ctrl)
+static inline void set_SOGO(struct controller *ctrl)
{
u16 misc;
}
-static inline void amber_LED_on (struct controller *ctrl, u8 slot)
+static inline void amber_LED_on(struct controller *ctrl, u8 slot)
{
u32 led_control;
}
-static inline void amber_LED_off (struct controller *ctrl, u8 slot)
+static inline void amber_LED_off(struct controller *ctrl, u8 slot)
{
u32 led_control;
}
-static inline int read_amber_LED (struct controller *ctrl, u8 slot)
+static inline int read_amber_LED(struct controller *ctrl, u8 slot)
{
u32 led_control;
}
-static inline void green_LED_on (struct controller *ctrl, u8 slot)
+static inline void green_LED_on(struct controller *ctrl, u8 slot)
{
u32 led_control;
writel(led_control, ctrl->hpc_reg + LED_CONTROL);
}
-static inline void green_LED_off (struct controller *ctrl, u8 slot)
+static inline void green_LED_off(struct controller *ctrl, u8 slot)
{
u32 led_control;
}
-static inline void green_LED_blink (struct controller *ctrl, u8 slot)
+static inline void green_LED_blink(struct controller *ctrl, u8 slot)
{
u32 led_control;
}
-static inline void slot_disable (struct controller *ctrl, u8 slot)
+static inline void slot_disable(struct controller *ctrl, u8 slot)
{
u8 slot_enable;
}
-static inline void slot_enable (struct controller *ctrl, u8 slot)
+static inline void slot_enable(struct controller *ctrl, u8 slot)
{
u8 slot_enable;
}
-static inline u8 is_slot_enabled (struct controller *ctrl, u8 slot)
+static inline u8 is_slot_enabled(struct controller *ctrl, u8 slot)
{
u8 slot_enable;
}
-static inline u8 read_slot_enable (struct controller *ctrl)
+static inline u8 read_slot_enable(struct controller *ctrl)
{
return readb(ctrl->hpc_reg + SLOT_ENABLE);
}
* Returns controller speed.
*
*/
-static inline u8 get_controller_speed (struct controller *ctrl)
+static inline u8 get_controller_speed(struct controller *ctrl)
{
u8 curr_freq;
u16 misc;
* Returns adapter speed.
*
*/
-static inline u8 get_adapter_speed (struct controller *ctrl, u8 hp_slot)
+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);
return PCI_SPEED_33MHz;
}
-static inline void enable_slot_power (struct controller *ctrl, u8 slot)
+static inline void enable_slot_power(struct controller *ctrl, u8 slot)
{
u8 slot_power;
writeb(slot_power, ctrl->hpc_reg + SLOT_POWER);
}
-static inline void disable_slot_power (struct controller *ctrl, u8 slot)
+static inline void disable_slot_power(struct controller *ctrl, u8 slot)
{
u8 slot_power;
}
-static inline int cpq_get_attention_status (struct controller *ctrl, struct slot *slot)
+static inline int cpq_get_attention_status(struct controller *ctrl, struct slot *slot)
{
u8 hp_slot;
- if (slot == NULL)
- return 1;
-
hp_slot = slot->device - ctrl->slot_device_offset;
- return read_amber_LED (ctrl, hp_slot);
+ return read_amber_LED(ctrl, hp_slot);
}
-static inline int get_slot_enabled (struct controller *ctrl, struct slot *slot)
+static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot)
{
u8 hp_slot;
- if (slot == NULL)
- return 1;
-
hp_slot = slot->device - ctrl->slot_device_offset;
- return is_slot_enabled (ctrl, hp_slot);
+ return is_slot_enabled(ctrl, hp_slot);
}
-static inline int cpq_get_latch_status (struct controller *ctrl, struct slot *slot)
+static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slot)
{
u32 status;
u8 hp_slot;
- if (slot == NULL)
- return 1;
-
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);
}
-static inline int get_presence_status (struct controller *ctrl, struct slot *slot)
+static inline int get_presence_status(struct controller *ctrl, struct slot *slot)
{
int presence_save = 0;
u8 hp_slot;
u32 tempdword;
- if (slot == NULL)
- return 0;
-
hp_slot = slot->device - ctrl->slot_device_offset;
tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR);
#define SLOT_NAME_SIZE 10
-static inline void make_slot_name (char *buffer, int buffer_size, struct slot *slot)
+static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
{
- snprintf (buffer, buffer_size, "%d", slot->number);
+ snprintf(buffer, buffer_size, "%d", slot->number);
}
-static inline int wait_for_ctrl_irq (struct controller *ctrl)
+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);
+ msleep_interruptible(1000);
remove_wait_queue(&ctrl->queue, &wait);
if (signal_pending(current))
retval = -EINTR;
return retval;
}
-
-/**
- * set_controller_speed - set the frequency and/or mode of a specific
- * controller segment.
- *
- * @ctrl: controller to change frequency/mode for.
- * @adapter_speed: the speed of the adapter we want to match.
- * @hp_slot: the slot number where the adapter is installed.
- *
- * Returns 0 if we successfully change frequency and/or mode to match the
- * adapter speed.
- *
- */
-static inline u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_slot)
-{
- struct slot *slot;
- u8 reg;
- u8 slot_power = readb(ctrl->hpc_reg + SLOT_POWER);
- u16 reg16;
- u32 leds = readl(ctrl->hpc_reg + LED_CONTROL);
-
- if (ctrl->speed == adapter_speed)
- return 0;
-
- /* We don't allow freq/mode changes if we find another adapter running
- * in another slot on this controller */
- for(slot = ctrl->slot; slot; slot = slot->next) {
- if (slot->device == (hp_slot + ctrl->slot_device_offset))
- continue;
- if (!slot->hotplug_slot && !slot->hotplug_slot->info)
- continue;
- if (slot->hotplug_slot->info->adapter_status == 0)
- continue;
- /* If another adapter is running on the same segment but at a
- * lower speed/mode, we allow the new adapter to function at
- * this rate if supported */
- if (ctrl->speed < adapter_speed)
- return 0;
-
- return 1;
- }
-
- /* If the controller doesn't support freq/mode changes and the
- * controller is running at a higher mode, we bail */
- if ((ctrl->speed > adapter_speed) && (!ctrl->pcix_speed_capability))
- return 1;
-
- /* But we allow the adapter to run at a lower rate if possible */
- if ((ctrl->speed < adapter_speed) && (!ctrl->pcix_speed_capability))
- return 0;
-
- /* We try to set the max speed supported by both the adapter and
- * controller */
- if (ctrl->speed_capability < adapter_speed) {
- if (ctrl->speed == ctrl->speed_capability)
- return 0;
- adapter_speed = ctrl->speed_capability;
- }
-
- writel(0x0L, ctrl->hpc_reg + LED_CONTROL);
- writeb(0x00, ctrl->hpc_reg + SLOT_ENABLE);
-
- set_SOGO(ctrl);
- wait_for_ctrl_irq(ctrl);
-
- if (adapter_speed != PCI_SPEED_133MHz_PCIX)
- reg = 0xF5;
- else
- reg = 0xF4;
- pci_write_config_byte(ctrl->pci_dev, 0x41, reg);
-
- reg16 = readw(ctrl->hpc_reg + NEXT_CURR_FREQ);
- reg16 &= ~0x000F;
- switch(adapter_speed) {
- case(PCI_SPEED_133MHz_PCIX):
- reg = 0x75;
- reg16 |= 0xB;
- break;
- case(PCI_SPEED_100MHz_PCIX):
- reg = 0x74;
- reg16 |= 0xA;
- break;
- case(PCI_SPEED_66MHz_PCIX):
- reg = 0x73;
- reg16 |= 0x9;
- break;
- case(PCI_SPEED_66MHz):
- reg = 0x73;
- reg16 |= 0x1;
- break;
- default: /* 33MHz PCI 2.2 */
- reg = 0x71;
- break;
-
- }
- reg16 |= 0xB << 12;
- writew(reg16, ctrl->hpc_reg + NEXT_CURR_FREQ);
-
- mdelay(5);
-
- /* Reenable interrupts */
- writel(0, ctrl->hpc_reg + INT_MASK);
-
- pci_write_config_byte(ctrl->pci_dev, 0x41, reg);
-
- /* Restart state machine */
- reg = ~0xF;
- pci_read_config_byte(ctrl->pci_dev, 0x43, ®);
- pci_write_config_byte(ctrl->pci_dev, 0x43, reg);
-
- /* Only if mode change...*/
- if (((ctrl->speed == PCI_SPEED_66MHz) && (adapter_speed == PCI_SPEED_66MHz_PCIX)) ||
- ((ctrl->speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz)))
- set_SOGO(ctrl);
-
- wait_for_ctrl_irq(ctrl);
- mdelay(1100);
-
- /* Restore LED/Slot state */
- writel(leds, ctrl->hpc_reg + LED_CONTROL);
- writeb(slot_power, ctrl->hpc_reg + SLOT_ENABLE);
-
- set_SOGO(ctrl);
- wait_for_ctrl_irq(ctrl);
-
- ctrl->speed = adapter_speed;
- slot = cpqhp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
-
- info("Successfully changed frequency/mode for adapter in slot %d\n",
- slot->number);
- return 0;
-}
-
#endif
git://git.onelab.eu / linux-2.6.git / blobdiff